open source_dhd.tar_S7_Android2.2

./dhd/0000755000175200017520000000000012077467723014001 5ustar  xionghaoyongxionghaoyong./dhd/sys/0000755000175200017520000000000012077467770014621 5ustar  xionghaoyongxionghaoyong./dhd/sys/dhd_dbg.h0000755000175200017520000001002412077456476016346 0ustar  xionghaoyongxionghaoyong/*
 * Debug/trace/assert driver definitions for Dongle Host Driver.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_dbg.h,v 1.5.6.2.4.2.14.10 2010/05/21 21:49:38 Exp $
 */

#ifndef _dhd_dbg_
#define _dhd_dbg_

#if 0 || (defined DHD_DEBUG)

#define DHD_ERROR(args)	       do {if ((dhd_msg_level & DHD_ERROR_VAL) && (net_ratelimit())) \
								printf args;} while (0)
#define DHD_TRACE(args)		do {if (dhd_msg_level & DHD_TRACE_VAL) printf args;} while (0)
#define DHD_INFO(args)		do {if (dhd_msg_level & DHD_INFO_VAL) printf args;} while (0)
#define DHD_DATA(args)		do {if (dhd_msg_level & DHD_DATA_VAL) printf args;} while (0)
#define DHD_CTL(args)		do {if (dhd_msg_level & DHD_CTL_VAL) printf args;} while (0)
#define DHD_TIMER(args)		do {if (dhd_msg_level & DHD_TIMER_VAL) printf args;} while (0)
#define DHD_HDRS(args)		do {if (dhd_msg_level & DHD_HDRS_VAL) printf args;} while (0)
#define DHD_BYTES(args)		do {if (dhd_msg_level & DHD_BYTES_VAL) printf args;} while (0)
#define DHD_INTR(args)		do {if (dhd_msg_level & DHD_INTR_VAL) printf args;} while (0)
#define DHD_GLOM(args)		do {if (dhd_msg_level & DHD_GLOM_VAL) printf args;} while (0)
#define DHD_EVENT(args)		do {if (dhd_msg_level & DHD_EVENT_VAL) printf args;} while (0)
#define DHD_BTA(args)		do {if (dhd_msg_level & DHD_BTA_VAL) printf args;} while (0)
#define DHD_ISCAN(args)		do {if (dhd_msg_level & DHD_ISCAN_VAL) printf args;} while (0)

#define DHD_ERROR_ON()		(dhd_msg_level & DHD_ERROR_VAL)
#define DHD_TRACE_ON()		(dhd_msg_level & DHD_TRACE_VAL)
#define DHD_INFO_ON()		(dhd_msg_level & DHD_INFO_VAL)
#define DHD_DATA_ON()		(dhd_msg_level & DHD_DATA_VAL)
#define DHD_CTL_ON()		(dhd_msg_level & DHD_CTL_VAL)
#define DHD_TIMER_ON()		(dhd_msg_level & DHD_TIMER_VAL)
#define DHD_HDRS_ON()		(dhd_msg_level & DHD_HDRS_VAL)
#define DHD_BYTES_ON()		(dhd_msg_level & DHD_BYTES_VAL)
#define DHD_INTR_ON()		(dhd_msg_level & DHD_INTR_VAL)
#define DHD_GLOM_ON()		(dhd_msg_level & DHD_GLOM_VAL)
#define DHD_EVENT_ON()		(dhd_msg_level & DHD_EVENT_VAL)
#define DHD_BTA_ON()		(dhd_msg_level & DHD_BTA_VAL)
#define DHD_ISCAN_ON()		(dhd_msg_level & DHD_ISCAN_VAL)

#else /* (defined BCMDBG) || (defined DHD_DEBUG) */

#define DHD_ERROR(args)    	do {if (net_ratelimit()) printf args;} while (0)
#define DHD_TRACE(args)
#define DHD_INFO(args)
#define DHD_DATA(args)
#define DHD_CTL(args)
#define DHD_TIMER(args)
#define DHD_HDRS(args)
#define DHD_BYTES(args)
#define DHD_INTR(args)
#define DHD_GLOM(args)
#define DHD_EVENT(args)
#define DHD_BTA(args)
#define DHD_ISCAN(args)

#define DHD_ERROR_ON()		0
#define DHD_TRACE_ON()		0
#define DHD_INFO_ON()		0
#define DHD_DATA_ON()		0
#define DHD_CTL_ON()		0
#define DHD_TIMER_ON()		0
#define DHD_HDRS_ON()		0
#define DHD_BYTES_ON()		0
#define DHD_INTR_ON()		0
#define DHD_GLOM_ON()		0
#define DHD_EVENT_ON()		0
#define DHD_BTA_ON()		0
#define DHD_ISCAN_ON()		0
#endif 

#define DHD_LOG(args)

#define DHD_NONE(args)
extern int dhd_msg_level;

/* Defines msg bits */
#include <dhdioctl.h>

#endif /* _dhd_dbg_ */
./dhd/sys/dhd_common.c0000755000175200017520000016651512077456660017111 0ustar  xionghaoyongxionghaoyong/*
 * Broadcom Dongle Host Driver (DHD), common DHD core.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_common.c,v 1.5.6.8.2.6.6.69.4.16 2010/11/18 03:53:32 Exp $
 */
#include <typedefs.h>
#include <osl.h>

#include <epivers.h>
#include <bcmutils.h>

#include <bcmendian.h>
#include <dngl_stats.h>
#include <dhd.h>
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_dbg.h>
#include <msgtrace.h>


#include <wlioctl.h>

int dhd_msg_level;


#include <wl_iw.h>

char fw_path[MOD_PARAM_PATHLEN];
char nv_path[MOD_PARAM_PATHLEN];

extern char chipname[];	/*4319/4329*/

/* Last connection success/failure status */
uint32 dhd_conn_event;
uint32 dhd_conn_status;
uint32 dhd_conn_reason;

#define htod32(i) i
#define htod16(i) i
#define dtoh32(i) i
#define dtoh16(i) i

extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
extern void dhd_ind_scan_confirm(void *h, bool status);
extern int dhd_wl_ioctl(dhd_pub_t *dhd, uint cmd, char *buf, uint buflen);
void dhd_iscan_lock(void);
void dhd_iscan_unlock(void);

#if defined(KEEP_ALIVE)
extern bool ap_fw_loaded;
int dhd_keep_alive_onoff(dhd_pub_t *dhd, int ka_on);
#endif /* KEEP_ALIVE */

/* Packet alignment for most efficient SDIO (can change based on platform) */
#ifndef DHD_SDALIGN
#define DHD_SDALIGN	32
#endif
#if !ISPOWEROF2(DHD_SDALIGN)
#error DHD_SDALIGN is not a power of 2!
#endif

#ifdef DHD_DEBUG
const char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR "\nCompiled on "
	__DATE__ " at " __TIME__;
#else
const char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR;
#endif

void dhd_set_timer(void *bus, uint wdtick);

/* IOVar table */
enum {
	IOV_VERSION = 1,
	IOV_MSGLEVEL,
	IOV_BCMERRORSTR,
	IOV_BCMERROR,
	IOV_WDTICK,
	IOV_DUMP,
#ifdef DHD_DEBUG
	IOV_CONS,
	IOV_DCONSOLE_POLL,
#endif
	IOV_CLEARCOUNTS,
	IOV_LOGDUMP,
	IOV_LOGCAL,
	IOV_LOGSTAMP,
	IOV_GPIOOB,
	IOV_IOCTLTIMEOUT,
	IOV_LAST
};

const bcm_iovar_t dhd_iovars[] = {
	{"version", 	IOV_VERSION,	0,	IOVT_BUFFER,	sizeof(dhd_version) },
#ifdef DHD_DEBUG
	{"msglevel",	IOV_MSGLEVEL,	0,	IOVT_UINT32,	0 },
#endif /* DHD_DEBUG */
	{"bcmerrorstr", IOV_BCMERRORSTR, 0, IOVT_BUFFER,	BCME_STRLEN },
	{"bcmerror",	IOV_BCMERROR,	0,	IOVT_INT8,	0 },
	{"wdtick",	IOV_WDTICK, 0,	IOVT_UINT32,	0 },
	{"dump",	IOV_DUMP,	0,	IOVT_BUFFER,	DHD_IOCTL_MAXLEN },
#ifdef DHD_DEBUG
	{"dconpoll",	IOV_DCONSOLE_POLL, 0,	IOVT_UINT32,	0 },
	{"cons",	IOV_CONS,	0,	IOVT_BUFFER,	0 },
#endif
	{"clearcounts", IOV_CLEARCOUNTS, 0, IOVT_VOID,	0 },
	{"gpioob",	IOV_GPIOOB,	0,	IOVT_UINT32,	0 },
	{"ioctl_timeout",	IOV_IOCTLTIMEOUT,	0,	IOVT_UINT32,	0 },
	{NULL, 0, 0, 0, 0 }
};

void
dhd_common_init(void)
{
	/* Init global variables at run-time, not as part of the declaration.
	 * This is required to support init/de-init of the driver. Initialization
	 * of globals as part of the declaration results in non-deterministic
	 * behaviour since the value of the globals may be different on the
	 * first time that the driver is initialized vs subsequent initializations.
	 */
	dhd_msg_level = DHD_ERROR_VAL;
#ifdef CONFIG_BCM4329_FW_PATH
	strncpy(fw_path, CONFIG_BCM4329_FW_PATH, MOD_PARAM_PATHLEN-1);
#else
	fw_path[0] = '\0';
#endif
#ifdef CONFIG_BCM4329_NVRAM_PATH
	strncpy(nv_path, CONFIG_BCM4329_NVRAM_PATH, MOD_PARAM_PATHLEN-1);
#else
	nv_path[0] = '\0';
#endif
}

static int
dhd_dump(dhd_pub_t *dhdp, char *buf, int buflen)
{
	char eabuf[ETHER_ADDR_STR_LEN];

	struct bcmstrbuf b;
	struct bcmstrbuf *strbuf = &b;

	bcm_binit(strbuf, buf, buflen);

	/* Base DHD info */
	bcm_bprintf(strbuf, "%s\n", dhd_version);
	bcm_bprintf(strbuf, "\n");
	bcm_bprintf(strbuf, "pub.up %d pub.txoff %d pub.busstate %d\n",
	            dhdp->up, dhdp->txoff, dhdp->busstate);
	bcm_bprintf(strbuf, "pub.hdrlen %d pub.maxctl %d pub.rxsz %d\n",
	            dhdp->hdrlen, dhdp->maxctl, dhdp->rxsz);
	bcm_bprintf(strbuf, "pub.iswl %d pub.drv_version %ld pub.mac %s\n",
	            dhdp->iswl, dhdp->drv_version, bcm_ether_ntoa(&dhdp->mac, eabuf));
	bcm_bprintf(strbuf, "pub.bcmerror %d tickcnt %d\n", dhdp->bcmerror, dhdp->tickcnt);

	bcm_bprintf(strbuf, "dongle stats:\n");
	bcm_bprintf(strbuf, "tx_packets %ld tx_bytes %ld tx_errors %ld tx_dropped %ld\n",
	            dhdp->dstats.tx_packets, dhdp->dstats.tx_bytes,
	            dhdp->dstats.tx_errors, dhdp->dstats.tx_dropped);
	bcm_bprintf(strbuf, "rx_packets %ld rx_bytes %ld rx_errors %ld rx_dropped %ld\n",
	            dhdp->dstats.rx_packets, dhdp->dstats.rx_bytes,
	            dhdp->dstats.rx_errors, dhdp->dstats.rx_dropped);
	bcm_bprintf(strbuf, "multicast %ld\n", dhdp->dstats.multicast);

	bcm_bprintf(strbuf, "bus stats:\n");
	bcm_bprintf(strbuf, "tx_packets %ld tx_multicast %ld tx_errors %ld\n",
	            dhdp->tx_packets, dhdp->tx_multicast, dhdp->tx_errors);
	bcm_bprintf(strbuf, "tx_ctlpkts %ld tx_ctlerrs %ld\n",
	            dhdp->tx_ctlpkts, dhdp->tx_ctlerrs);
	bcm_bprintf(strbuf, "rx_packets %ld rx_multicast %ld rx_errors %ld \n",
	            dhdp->rx_packets, dhdp->rx_multicast, dhdp->rx_errors);
	bcm_bprintf(strbuf, "rx_ctlpkts %ld rx_ctlerrs %ld rx_dropped %ld rx_flushed %ld\n",
	            dhdp->rx_ctlpkts, dhdp->rx_ctlerrs, dhdp->rx_dropped, dhdp->rx_flushed);
	bcm_bprintf(strbuf, "rx_readahead_cnt %ld tx_realloc %ld fc_packets %ld\n",
	            dhdp->rx_readahead_cnt, dhdp->tx_realloc, dhdp->fc_packets);
	bcm_bprintf(strbuf, "wd_dpc_sched %ld\n", dhdp->wd_dpc_sched);
	bcm_bprintf(strbuf, "\n");

	/* Add any prot info */
	dhd_prot_dump(dhdp, strbuf);
	bcm_bprintf(strbuf, "\n");

	/* Add any bus info */
	dhd_bus_dump(dhdp, strbuf);

	return (!strbuf->size ? BCME_BUFTOOSHORT : 0);
}

static int
dhd_doiovar(dhd_pub_t *dhd_pub, const bcm_iovar_t *vi, uint32 actionid, const char *name,
            void *params, int plen, void *arg, int len, int val_size)
{
	int bcmerror = 0;
	int32 int_val = 0;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, IOV_ISSET(actionid))) != 0)
		goto exit;

	if (plen >= (int)sizeof(int_val))
		bcopy(params, &int_val, sizeof(int_val));

	switch (actionid) {
	case IOV_GVAL(IOV_VERSION):
		/* Need to have checked buffer length */
		strncpy((char*)arg, dhd_version, len);
		break;

	case IOV_GVAL(IOV_MSGLEVEL):
		int_val = (int32)dhd_msg_level;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_MSGLEVEL):
		dhd_msg_level = int_val;
		break;


	case IOV_GVAL(IOV_BCMERRORSTR):
		strncpy((char *)arg, bcmerrorstr(dhd_pub->bcmerror), BCME_STRLEN);
		((char *)arg)[BCME_STRLEN - 1] = 0x00;
		break;

	case IOV_GVAL(IOV_BCMERROR):
		int_val = (int32)dhd_pub->bcmerror;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_GVAL(IOV_WDTICK):
		int_val = (int32)dhd_watchdog_ms;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_WDTICK):
		if (!dhd_pub->up) {
			bcmerror = BCME_NOTUP;
			break;
		}
		dhd_os_wd_timer(dhd_pub, (uint)int_val);
		break;

	case IOV_GVAL(IOV_DUMP):
		bcmerror = dhd_dump(dhd_pub, arg, len);
		break;

#ifdef DHD_DEBUG
	case IOV_GVAL(IOV_DCONSOLE_POLL):
		int_val = (int32)dhd_console_ms;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_DCONSOLE_POLL):
		dhd_console_ms = (uint)int_val;
		break;

	case IOV_SVAL(IOV_CONS):
		if (len > 0)
			bcmerror = dhd_bus_console_in(dhd_pub, arg, len - 1);
		break;
#endif

	case IOV_SVAL(IOV_CLEARCOUNTS):
		dhd_pub->tx_packets = dhd_pub->rx_packets = 0;
		dhd_pub->tx_errors = dhd_pub->rx_errors = 0;
		dhd_pub->tx_ctlpkts = dhd_pub->rx_ctlpkts = 0;
		dhd_pub->tx_ctlerrs = dhd_pub->rx_ctlerrs = 0;
		dhd_pub->rx_dropped = 0;
		dhd_pub->rx_readahead_cnt = 0;
		dhd_pub->tx_realloc = 0;
		dhd_pub->wd_dpc_sched = 0;
		memset(&dhd_pub->dstats, 0, sizeof(dhd_pub->dstats));
		dhd_bus_clearcounts(dhd_pub);
		break;


	case IOV_GVAL(IOV_IOCTLTIMEOUT): {
		int_val = (int32)dhd_os_get_ioctl_resp_timeout();
		bcopy(&int_val, arg, sizeof(int_val));
		break;
	}

	case IOV_SVAL(IOV_IOCTLTIMEOUT): {
		if (int_val <= 0)
			bcmerror = BCME_BADARG;
		else
			dhd_os_set_ioctl_resp_timeout((unsigned int)int_val);
		break;
	}


	default:
		bcmerror = BCME_UNSUPPORTED;
		break;
	}

exit:
	return bcmerror;
}

/* Store the status of a connection attempt for later retrieval by an iovar */
void
dhd_store_conn_status(uint32 event, uint32 status, uint32 reason)
{
	/* Do not overwrite a WLC_E_PRUNE with a WLC_E_SET_SSID
	 * because an encryption/rsn mismatch results in both events, and
	 * the important information is in the WLC_E_PRUNE.
	 */
	if (!(event == WLC_E_SET_SSID && status == WLC_E_STATUS_FAIL &&
	      dhd_conn_event == WLC_E_PRUNE)) {
		dhd_conn_event = event;
		dhd_conn_status = status;
		dhd_conn_reason = reason;
	}
}

bool
dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, void *pkt, int prec)
{
	void *p;
	int eprec = -1;		/* precedence to evict from */
	bool discard_oldest;

	/* Fast case, precedence queue is not full and we are also not
	 * exceeding total queue length
	 */
	if (!pktq_pfull(q, prec) && !pktq_full(q)) {
		pktq_penq(q, prec, pkt);
		return TRUE;
	}

	/* Determine precedence from which to evict packet, if any */
	if (pktq_pfull(q, prec))
		eprec = prec;
	else if (pktq_full(q)) {
		p = pktq_peek_tail(q, &eprec);
		ASSERT(p);
		if (eprec > prec)
			return FALSE;
	}

	/* Evict if needed */
	if (eprec >= 0) {
		/* Detect queueing to unconfigured precedence */
		ASSERT(!pktq_pempty(q, eprec));
		discard_oldest = AC_BITMAP_TST(dhdp->wme_dp, eprec);
		if (eprec == prec && !discard_oldest)
			return FALSE;		/* refuse newer (incoming) packet */
		/* Evict packet according to discard policy */
		p = discard_oldest ? pktq_pdeq(q, eprec) : pktq_pdeq_tail(q, eprec);
		if (p == NULL) {
			DHD_ERROR(("%s: pktq_penq() failed, oldest %d.",
				__FUNCTION__, discard_oldest));
			ASSERT(p);
		}

		PKTFREE(dhdp->osh, p, TRUE);
	}

	/* Enqueue */
	p = pktq_penq(q, prec, pkt);
	if (p == NULL) {
		DHD_ERROR(("%s: pktq_penq() failed.", __FUNCTION__));
		ASSERT(p);
	}

	return TRUE;
}

static int
dhd_iovar_op(dhd_pub_t *dhd_pub, const char *name,
             void *params, int plen, void *arg, int len, bool set)
{
	int bcmerror = 0;
	int val_size;
	const bcm_iovar_t *vi = NULL;
	uint32 actionid;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ASSERT(name);
	ASSERT(len >= 0);

	/* Get MUST have return space */
	ASSERT(set || (arg && len));

	/* Set does NOT take qualifiers */
	ASSERT(!set || (!params && !plen));

	if ((vi = bcm_iovar_lookup(dhd_iovars, name)) == NULL) {
		bcmerror = BCME_UNSUPPORTED;
		goto exit;
	}

	DHD_CTL(("%s: %s %s, len %d plen %d\n", __FUNCTION__,
	         name, (set ? "set" : "get"), len, plen));

	/* set up 'params' pointer in case this is a set command so that
	 * the convenience int and bool code can be common to set and get
	 */
	if (params == NULL) {
		params = arg;
		plen = len;
	}

	if (vi->type == IOVT_VOID)
		val_size = 0;
	else if (vi->type == IOVT_BUFFER)
		val_size = len;
	else
		/* all other types are integer sized */
		val_size = sizeof(int);

	actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
	bcmerror = dhd_doiovar(dhd_pub, vi, actionid, name, params, plen, arg, len, val_size);

exit:
	return bcmerror;
}

int
dhd_ioctl(dhd_pub_t *dhd_pub, dhd_ioctl_t *ioc, void *buf, uint buflen)
{
	int bcmerror = 0;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (!buf) return BCME_BADARG;

	switch (ioc->cmd) {
	case DHD_GET_MAGIC:
		if (buflen < sizeof(int))
			bcmerror = BCME_BUFTOOSHORT;
		else
			*(int*)buf = DHD_IOCTL_MAGIC;
		break;

	case DHD_GET_VERSION:
		if (buflen < sizeof(int))
			bcmerror = -BCME_BUFTOOSHORT;
		else
			*(int*)buf = DHD_IOCTL_VERSION;
		break;

	case DHD_GET_VAR:
	case DHD_SET_VAR: {
		char *arg;
		uint arglen;

		/* scan past the name to any arguments */
		for (arg = buf, arglen = buflen; *arg && arglen; arg++, arglen--);

		if (*arg) {
			bcmerror = BCME_BUFTOOSHORT;
			break;
		}

		/* account for the NUL terminator */
		arg++, arglen--;

		/* call with the appropriate arguments */
		if (ioc->cmd == DHD_GET_VAR)
			bcmerror = dhd_iovar_op(dhd_pub, buf, arg, arglen,
			buf, buflen, IOV_GET);
		else
			bcmerror = dhd_iovar_op(dhd_pub, buf, NULL, 0, arg, arglen, IOV_SET);
		if (bcmerror != BCME_UNSUPPORTED)
			break;

		/* not in generic table, try protocol module */
		if (ioc->cmd == DHD_GET_VAR)
			bcmerror = dhd_prot_iovar_op(dhd_pub, buf, arg,
			                             arglen, buf, buflen, IOV_GET);
		else
			bcmerror = dhd_prot_iovar_op(dhd_pub, buf,
			                             NULL, 0, arg, arglen, IOV_SET);
		if (bcmerror != BCME_UNSUPPORTED)
			break;

		/* if still not found, try bus module */
		if (ioc->cmd == DHD_GET_VAR)
			bcmerror = dhd_bus_iovar_op(dhd_pub, buf,
			                            arg, arglen, buf, buflen, IOV_GET);
		else
			bcmerror = dhd_bus_iovar_op(dhd_pub, buf,
			                            NULL, 0, arg, arglen, IOV_SET);

		break;
	}

	default:
		bcmerror = BCME_UNSUPPORTED;
	}

	return bcmerror;
}


#ifdef SHOW_EVENTS
static void
wl_show_host_event(wl_event_msg_t *event, void *event_data)
{
	uint i, status, reason;
	bool group = FALSE, flush_txq = FALSE, link = FALSE;
	char *auth_str, *event_name;
	uchar *buf;
	char err_msg[256], eabuf[ETHER_ADDR_STR_LEN];
	static struct {uint event; char *event_name;} event_names[] = {
		{WLC_E_SET_SSID, "SET_SSID"},
		{WLC_E_JOIN, "JOIN"},
		{WLC_E_START, "START"},
		{WLC_E_AUTH, "AUTH"},
		{WLC_E_AUTH_IND, "AUTH_IND"},
		{WLC_E_DEAUTH, "DEAUTH"},
		{WLC_E_DEAUTH_IND, "DEAUTH_IND"},
		{WLC_E_ASSOC, "ASSOC"},
		{WLC_E_ASSOC_IND, "ASSOC_IND"},
		{WLC_E_REASSOC, "REASSOC"},
		{WLC_E_REASSOC_IND, "REASSOC_IND"},
		{WLC_E_DISASSOC, "DISASSOC"},
		{WLC_E_DISASSOC_IND, "DISASSOC_IND"},
		{WLC_E_QUIET_START, "START_QUIET"},
		{WLC_E_QUIET_END, "END_QUIET"},
		{WLC_E_BEACON_RX, "BEACON_RX"},
		{WLC_E_LINK, "LINK"},
		{WLC_E_MIC_ERROR, "MIC_ERROR"},
		{WLC_E_NDIS_LINK, "NDIS_LINK"},
		{WLC_E_ROAM, "ROAM"},
		{WLC_E_TXFAIL, "TXFAIL"},
		{WLC_E_PMKID_CACHE, "PMKID_CACHE"},
		{WLC_E_RETROGRADE_TSF, "RETROGRADE_TSF"},
		{WLC_E_PRUNE, "PRUNE"},
		{WLC_E_AUTOAUTH, "AUTOAUTH"},
		{WLC_E_EAPOL_MSG, "EAPOL_MSG"},
		{WLC_E_SCAN_COMPLETE, "SCAN_COMPLETE"},
		{WLC_E_ADDTS_IND, "ADDTS_IND"},
		{WLC_E_DELTS_IND, "DELTS_IND"},
		{WLC_E_BCNSENT_IND, "BCNSENT_IND"},
		{WLC_E_BCNRX_MSG, "BCNRX_MSG"},
		{WLC_E_BCNLOST_MSG, "BCNLOST_MSG"},
		{WLC_E_ROAM_PREP, "ROAM_PREP"},
		{WLC_E_PFN_NET_FOUND, "PNO_NET_FOUND"},
		{WLC_E_PFN_NET_LOST, "PNO_NET_LOST"},
		{WLC_E_RESET_COMPLETE, "RESET_COMPLETE"},
		{WLC_E_JOIN_START, "JOIN_START"},
		{WLC_E_ROAM_START, "ROAM_START"},
		{WLC_E_ASSOC_START, "ASSOC_START"},
		{WLC_E_IBSS_ASSOC, "IBSS_ASSOC"},
		{WLC_E_RADIO, "RADIO"},
		{WLC_E_PSM_WATCHDOG, "PSM_WATCHDOG"},
		{WLC_E_PROBREQ_MSG, "PROBREQ_MSG"},
		{WLC_E_SCAN_CONFIRM_IND, "SCAN_CONFIRM_IND"},
		{WLC_E_PSK_SUP, "PSK_SUP"},
		{WLC_E_COUNTRY_CODE_CHANGED, "COUNTRY_CODE_CHANGED"},
		{WLC_E_EXCEEDED_MEDIUM_TIME, "EXCEEDED_MEDIUM_TIME"},
		{WLC_E_ICV_ERROR, "ICV_ERROR"},
		{WLC_E_UNICAST_DECODE_ERROR, "UNICAST_DECODE_ERROR"},
		{WLC_E_MULTICAST_DECODE_ERROR, "MULTICAST_DECODE_ERROR"},
		{WLC_E_TRACE, "TRACE"},
		{WLC_E_ACTION_FRAME, "ACTION FRAME"},
		{WLC_E_ACTION_FRAME_COMPLETE, "ACTION FRAME TX COMPLETE"},
		{WLC_E_IF, "IF"},
		{WLC_E_RSSI, "RSSI"},
		{WLC_E_PFN_SCAN_COMPLETE, "SCAN_COMPLETE"}
	};
	uint event_type, flags, auth_type, datalen;
	event_type = ntoh32(event->event_type);
	flags = ntoh16(event->flags);
	status = ntoh32(event->status);
	reason = ntoh32(event->reason);
	auth_type = ntoh32(event->auth_type);
	datalen = ntoh32(event->datalen);
	/* debug dump of event messages */
	sprintf(eabuf, "%02x:%02x:%02x:%02x:%02x:%02x",
	        (uchar)event->addr.octet[0]&0xff,
	        (uchar)event->addr.octet[1]&0xff,
	        (uchar)event->addr.octet[2]&0xff,
	        (uchar)event->addr.octet[3]&0xff,
	        (uchar)event->addr.octet[4]&0xff,
	        (uchar)event->addr.octet[5]&0xff);

	event_name = "UNKNOWN";
	for (i = 0; i < ARRAYSIZE(event_names); i++) {
		if (event_names[i].event == event_type)
			event_name = event_names[i].event_name;
	}

	DHD_EVENT(("EVENT: %s, event ID = %d\n", event_name, event_type));

	if (flags & WLC_EVENT_MSG_LINK)
		link = TRUE;
	if (flags & WLC_EVENT_MSG_GROUP)
		group = TRUE;
	if (flags & WLC_EVENT_MSG_FLUSHTXQ)
		flush_txq = TRUE;

	switch (event_type) {
	case WLC_E_START:
	case WLC_E_DEAUTH:
	case WLC_E_DISASSOC:
		DHD_EVENT(("MACEVENT: %s, MAC %s\n", event_name, eabuf));
		break;

	case WLC_E_ASSOC_IND:
	case WLC_E_REASSOC_IND:
		DHD_EVENT(("MACEVENT: %s, MAC %s\n", event_name, eabuf));
		break;

	case WLC_E_ASSOC:
	case WLC_E_REASSOC:
		if (status == WLC_E_STATUS_SUCCESS) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, SUCCESS\n", event_name, eabuf));
		} else if (status == WLC_E_STATUS_TIMEOUT) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, TIMEOUT\n", event_name, eabuf));
		} else if (status == WLC_E_STATUS_FAIL) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, FAILURE, reason %d\n",
			       event_name, eabuf, (int)reason));
		} else {
			DHD_EVENT(("MACEVENT: %s, MAC %s, unexpected status %d\n",
			       event_name, eabuf, (int)status));
		}
		break;

	case WLC_E_DEAUTH_IND:
	case WLC_E_DISASSOC_IND:
		DHD_EVENT(("MACEVENT: %s, MAC %s, reason %d\n", event_name, eabuf, (int)reason));
		break;

	case WLC_E_AUTH:
	case WLC_E_AUTH_IND:
		if (auth_type == DOT11_OPEN_SYSTEM)
			auth_str = "Open System";
		else if (auth_type == DOT11_SHARED_KEY)
			auth_str = "Shared Key";
		else {
			sprintf(err_msg, "AUTH unknown: %d", (int)auth_type);
			auth_str = err_msg;
		}
		if (event_type == WLC_E_AUTH_IND) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, %s\n", event_name, eabuf, auth_str));
		} else if (status == WLC_E_STATUS_SUCCESS) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, %s, SUCCESS\n",
				event_name, eabuf, auth_str));
		} else if (status == WLC_E_STATUS_TIMEOUT) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, %s, TIMEOUT\n",
				event_name, eabuf, auth_str));
		} else if (status == WLC_E_STATUS_FAIL) {
			DHD_EVENT(("MACEVENT: %s, MAC %s, %s, FAILURE, reason %d\n",
			       event_name, eabuf, auth_str, (int)reason));
		}

		break;

	case WLC_E_JOIN:
	case WLC_E_ROAM:
	case WLC_E_SET_SSID:
		if (status == WLC_E_STATUS_SUCCESS) {
			DHD_EVENT(("MACEVENT: %s, MAC %s\n", event_name, eabuf));
		} else if (status == WLC_E_STATUS_FAIL) {
			DHD_EVENT(("MACEVENT: %s, failed\n", event_name));
		} else if (status == WLC_E_STATUS_NO_NETWORKS) {
			DHD_EVENT(("MACEVENT: %s, no networks found\n", event_name));
		} else {
			DHD_EVENT(("MACEVENT: %s, unexpected status %d\n",
				event_name, (int)status));
		}
		break;

	case WLC_E_BEACON_RX:
		if (status == WLC_E_STATUS_SUCCESS) {
			DHD_EVENT(("MACEVENT: %s, SUCCESS\n", event_name));
		} else if (status == WLC_E_STATUS_FAIL) {
			DHD_EVENT(("MACEVENT: %s, FAIL\n", event_name));
		} else {
			DHD_EVENT(("MACEVENT: %s, status %d\n", event_name, status));
		}
		break;

	case WLC_E_LINK:
		DHD_EVENT(("MACEVENT: %s %s\n", event_name, link?"UP":"DOWN"));
		break;

	case WLC_E_MIC_ERROR:
		DHD_EVENT(("MACEVENT: %s, MAC %s, Group %d, Flush %d\n",
		       event_name, eabuf, group, flush_txq));
		break;

	case WLC_E_ICV_ERROR:
	case WLC_E_UNICAST_DECODE_ERROR:
	case WLC_E_MULTICAST_DECODE_ERROR:
		DHD_EVENT(("MACEVENT: %s, MAC %s\n",
		       event_name, eabuf));
		break;

	case WLC_E_TXFAIL:
		DHD_EVENT(("MACEVENT: %s, RA %s\n", event_name, eabuf));
		break;

	case WLC_E_SCAN_COMPLETE:
	case WLC_E_PMKID_CACHE:
		DHD_EVENT(("MACEVENT: %s\n", event_name));
		break;

	case WLC_E_PFN_NET_FOUND:
	case WLC_E_PFN_NET_LOST:
	case WLC_E_PFN_SCAN_COMPLETE:
		DHD_EVENT(("PNOEVENT: %s\n", event_name));
		break;

	case WLC_E_PSK_SUP:
	case WLC_E_PRUNE:
		DHD_EVENT(("MACEVENT: %s, status %d, reason %d\n",
		           event_name, (int)status, (int)reason));
		break;

	case WLC_E_TRACE:
		{
			static uint32 seqnum_prev = 0;
			msgtrace_hdr_t hdr;
			uint32 nblost;
			char *s, *p;

			buf = (uchar *) event_data;
			memcpy(&hdr, buf, MSGTRACE_HDRLEN);

			if (hdr.version != MSGTRACE_VERSION) {
				printf("\nMACEVENT: %s [unsupported version --> "
				       "dhd version:%d dongle version:%d]\n",
				       event_name, MSGTRACE_VERSION, hdr.version);
				/* Reset datalen to avoid display below */
				datalen = 0;
				break;
			}

			/* There are 2 bytes available at the end of data */
			buf[MSGTRACE_HDRLEN + ntoh16(hdr.len)] = '\0';

			if (ntoh32(hdr.discarded_bytes) || ntoh32(hdr.discarded_printf)) {
				printf("\nWLC_E_TRACE: [Discarded traces in dongle -->"
				       "discarded_bytes %d discarded_printf %d]\n",
				       ntoh32(hdr.discarded_bytes), ntoh32(hdr.discarded_printf));
			}

			nblost = ntoh32(hdr.seqnum) - seqnum_prev - 1;
			if (nblost > 0) {
				printf("\nWLC_E_TRACE: [Event lost --> seqnum %d nblost %d\n",
				        ntoh32(hdr.seqnum), nblost);
			}
			seqnum_prev = ntoh32(hdr.seqnum);

			/* Display the trace buffer. Advance from \n to \n to avoid display big
			 * printf (issue with Linux printk )
			 */
			p = (char *)&buf[MSGTRACE_HDRLEN];
			while ((s = strstr(p, "\n")) != NULL) {
				*s = '\0';
				printf("%s\n", p);
				p = s + 1;
			}
			printf("%s\n", p);

			/* Reset datalen to avoid display below */
			datalen = 0;
		}
		break;


	case WLC_E_RSSI:
		DHD_EVENT(("MACEVENT: %s %d\n", event_name, ntoh32(*((int *)event_data))));
		break;

	default:
		DHD_EVENT(("MACEVENT: %s %d, MAC %s, status %d, reason %d, auth %d\n",
		       event_name, event_type, eabuf, (int)status, (int)reason,
		       (int)auth_type));
		break;
	}

	/* show any appended data */
	if (datalen) {
		buf = (uchar *) event_data;
		DHD_EVENT((" data (%d) : ", datalen));
		for (i = 0; i < datalen; i++)
			DHD_EVENT((" 0x%02x ", *buf++));
		DHD_EVENT(("\n"));
	}
}
#endif /* SHOW_EVENTS */

int
wl_host_event(struct dhd_info *dhd, int *ifidx, void *pktdata,
              wl_event_msg_t *event, void **data_ptr)
{
	/* check whether packet is a BRCM event pkt */
	bcm_event_t *pvt_data = (bcm_event_t *)pktdata;
	char *event_data;
	uint32 type, status;
	uint16 flags;
	int evlen;

	if (bcmp(BRCM_OUI, &pvt_data->bcm_hdr.oui[0], DOT11_OUI_LEN)) {
		DHD_ERROR(("%s: mismatched OUI, bailing\n", __FUNCTION__));
		return (BCME_ERROR);
	}

	/* BRCM event pkt may be unaligned - use xxx_ua to load user_subtype. */
	if (ntoh16_ua((void *)&pvt_data->bcm_hdr.usr_subtype) != BCMILCP_BCM_SUBTYPE_EVENT) {
		DHD_ERROR(("%s: mismatched subtype, bailing\n", __FUNCTION__));
		return (BCME_ERROR);
	}

	*data_ptr = &pvt_data[1];
	event_data = *data_ptr;

	/* memcpy since BRCM event pkt may be unaligned. */
	memcpy(event, &pvt_data->event, sizeof(wl_event_msg_t));

	type = ntoh32_ua((void *)&event->event_type);
	flags = ntoh16_ua((void *)&event->flags);
	status = ntoh32_ua((void *)&event->status);
	evlen = ntoh32_ua((void *)&event->datalen) + sizeof(bcm_event_t);

	switch (type) {
		case WLC_E_IF:
			{
				dhd_if_event_t *ifevent = (dhd_if_event_t *)event_data;
				DHD_TRACE(("%s: if event\n", __FUNCTION__));

				if (ifevent->ifidx > 0 && ifevent->ifidx < DHD_MAX_IFS)
				{
					if (ifevent->action == WLC_E_IF_ADD)
						dhd_add_if(dhd, ifevent->ifidx,
							NULL, event->ifname,
							pvt_data->eth.ether_dhost,
							ifevent->flags, ifevent->bssidx);
					else
						dhd_del_if(dhd, ifevent->ifidx);
				} else {
					DHD_ERROR(("%s: Invalid ifidx %d for %s\n",
						__FUNCTION__, ifevent->ifidx, event->ifname));
				}
			}
			/* send up the if event: btamp user needs it */
			*ifidx = dhd_ifname2idx(dhd, event->ifname);
			/* push up to external supp/auth */
			dhd_event(dhd, (char *)pvt_data, evlen, *ifidx);
			break;


#ifdef P2P
		case WLC_E_NDIS_LINK:
			break;
#endif
		/* fall through */
		/* These are what external supplicant/authenticator wants */
		case WLC_E_LINK:
		case WLC_E_ASSOC_IND:
		case WLC_E_REASSOC_IND:
		case WLC_E_DISASSOC_IND:
		case WLC_E_MIC_ERROR:
		default:
		/* Fall through: this should get _everything_  */

			*ifidx = dhd_ifname2idx(dhd, event->ifname);
			/* push up to external supp/auth */
			dhd_event(dhd, (char *)pvt_data, evlen, *ifidx);
			DHD_TRACE(("%s: MAC event %d, flags %x, status %x\n",
			           __FUNCTION__, type, flags, status));

			/* put it back to WLC_E_NDIS_LINK */
			if (type == WLC_E_NDIS_LINK) {
				uint32 temp;

				temp = ntoh32_ua((void *)&event->event_type);
				DHD_TRACE(("Converted to WLC_E_LINK type %d\n", temp));

				temp = ntoh32(WLC_E_NDIS_LINK);
				memcpy((void *)(&pvt_data->event.event_type), &temp,
					sizeof(pvt_data->event.event_type));
			}
			break;
	}

#ifdef SHOW_EVENTS
	wl_show_host_event(event, event_data);
#endif /* SHOW_EVENTS */

	return (BCME_OK);
}


void
wl_event_to_host_order(wl_event_msg_t *evt)
{
	/* Event struct members passed from dongle to host are stored in network
	 * byte order. Convert all members to host-order.
	 */
	evt->event_type = ntoh32(evt->event_type);
	evt->flags = ntoh16(evt->flags);
	evt->status = ntoh32(evt->status);
	evt->reason = ntoh32(evt->reason);
	evt->auth_type = ntoh32(evt->auth_type);
	evt->datalen = ntoh32(evt->datalen);
	evt->version = ntoh16(evt->version);
}

void print_buf(void *pbuf, int len, int bytes_per_line)
{
	int i, j = 0;
	unsigned char *buf = pbuf;

	if (bytes_per_line == 0) {
		bytes_per_line = len;
	}

	for (i = 0; i < len; i++) {
		printf("%2.2x", *buf++);
		j++;
		if (j == bytes_per_line) {
			printf("\n");
			j = 0;
		} else {
			printf(":");
		}
	}
	printf("\n");
}

#define strtoul(nptr, endptr, base) bcm_strtoul((nptr), (endptr), (base))

/* Convert user's input in hex pattern to byte-size mask */
static int
wl_pattern_atoh(char *src, char *dst)
{
	int i;
	if (strncmp(src, "0x", 2) != 0 &&
	    strncmp(src, "0X", 2) != 0) {
		DHD_ERROR(("Mask invalid format. Needs to start with 0x\n"));
		return -1;
	}
	src = src + 2; /* Skip past 0x */
	if (strlen(src) % 2 != 0) {
		DHD_ERROR(("Mask invalid format. Needs to be of even length\n"));
		return -1;
	}
	for (i = 0; *src != '\0'; i++) {
		char num[3];
		strncpy(num, src, 2);
		num[2] = '\0';
		dst[i] = (uint8)strtoul(num, NULL, 16);
		src += 2;
	}
	return i;
}

void
dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode)
{
	char				*argv[8];
	int					i = 0;
	const char 			*str;
	int					buf_len;
	int					str_len;
	char				*arg_save = 0, *arg_org = 0;
	int					rc;
	char				buf[128];
	wl_pkt_filter_enable_t	enable_parm;
	wl_pkt_filter_enable_t	* pkt_filterp;

	if (!(arg_save = MALLOC(dhd->osh, strlen(arg) + 1))) {
		DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
		goto fail;
	}
	arg_org = arg_save;
	memcpy(arg_save, arg, strlen(arg) + 1);

	argv[i] = bcmstrtok(&arg_save, " ", 0);

	i = 0;
	if (NULL == argv[i]) {
		DHD_ERROR(("No args provided\n"));
		goto fail;
	}

	str = "pkt_filter_enable";
	str_len = strlen(str);
	strncpy(buf, str, str_len);
	buf[str_len] = '\0';
	buf_len = str_len + 1;

	pkt_filterp = (wl_pkt_filter_enable_t *)(buf + str_len + 1);

	/* Parse packet filter id. */
	enable_parm.id = htod32(strtoul(argv[i], NULL, 0));

	/* Parse enable/disable value. */
	enable_parm.enable = htod32(enable);

	buf_len += sizeof(enable_parm);
	memcpy((char *)pkt_filterp,
	       &enable_parm,
	       sizeof(enable_parm));

	/* Enable/disable the specified filter. */
	rc = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, buf, buf_len);
	rc = rc >= 0 ? 0 : rc;
	if (rc)
		DHD_TRACE(("%s: failed to add pktfilter %s, retcode = %d\n",
		__FUNCTION__, arg, rc));
	else
		DHD_TRACE(("%s: successfully added pktfilter %s\n",
		__FUNCTION__, arg));

	/* Contorl the master mode */
	bcm_mkiovar("pkt_filter_mode", (char *)&master_mode, 4, buf, sizeof(buf));
	rc = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, buf, sizeof(buf));
	rc = rc >= 0 ? 0 : rc;
	if (rc)
		DHD_TRACE(("%s: failed to add pktfilter %s, retcode = %d\n",
		__FUNCTION__, arg, rc));

fail:
	if (arg_org)
		MFREE(dhd->osh, arg_org, strlen(arg) + 1);
}

void
dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg)
{
	const char 			*str;
	wl_pkt_filter_t		pkt_filter;
	wl_pkt_filter_t		*pkt_filterp;
	int					buf_len;
	int					str_len;
	int 				rc;
	uint32				mask_size;
	uint32				pattern_size;
	char				*argv[8], * buf = 0;
	int					i = 0;
	char				*arg_save = 0, *arg_org = 0;
#define BUF_SIZE		2048

	if (!(arg_save = MALLOC(dhd->osh, strlen(arg) + 1))) {
		DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
		goto fail;
	}

	arg_org = arg_save;

	if (!(buf = MALLOC(dhd->osh, BUF_SIZE))) {
		DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
		goto fail;
	}

	memcpy(arg_save, arg, strlen(arg) + 1);

	if (strlen(arg) > BUF_SIZE) {
		DHD_ERROR(("Not enough buffer %d < %d\n", (int)strlen(arg), (int)sizeof(buf)));
		goto fail;
	}

	argv[i] = bcmstrtok(&arg_save, " ", 0);
	while (argv[i++])
		argv[i] = bcmstrtok(&arg_save, " ", 0);

	i = 0;
	if (NULL == argv[i]) {
		DHD_ERROR(("No args provided\n"));
		goto fail;
	}

	str = "pkt_filter_add";
	str_len = strlen(str);
	strncpy(buf, str, str_len);
	buf[ str_len ] = '\0';
	buf_len = str_len + 1;

	pkt_filterp = (wl_pkt_filter_t *) (buf + str_len + 1);

	/* Parse packet filter id. */
	pkt_filter.id = htod32(strtoul(argv[i], NULL, 0));

	if (NULL == argv[++i]) {
		DHD_ERROR(("Polarity not provided\n"));
		goto fail;
	}

	/* Parse filter polarity. */
	pkt_filter.negate_match = htod32(strtoul(argv[i], NULL, 0));

	if (NULL == argv[++i]) {
		DHD_ERROR(("Filter type not provided\n"));
		goto fail;
	}

	/* Parse filter type. */
	pkt_filter.type = htod32(strtoul(argv[i], NULL, 0));

	if (NULL == argv[++i]) {
		DHD_ERROR(("Offset not provided\n"));
		goto fail;
	}

	/* Parse pattern filter offset. */
	pkt_filter.u.pattern.offset = htod32(strtoul(argv[i], NULL, 0));

	if (NULL == argv[++i]) {
		DHD_ERROR(("Bitmask not provided\n"));
		goto fail;
	}

	/* Parse pattern filter mask. */
	mask_size =
		htod32(wl_pattern_atoh(argv[i], (char *) pkt_filterp->u.pattern.mask_and_pattern));

	if (NULL == argv[++i]) {
		DHD_ERROR(("Pattern not provided\n"));
		goto fail;
	}

	/* Parse pattern filter pattern. */
	pattern_size =
		htod32(wl_pattern_atoh(argv[i],
	         (char *) &pkt_filterp->u.pattern.mask_and_pattern[mask_size]));

	if (mask_size != pattern_size) {
		DHD_ERROR(("Mask and pattern not the same size\n"));
		goto fail;
	}

	pkt_filter.u.pattern.size_bytes = mask_size;
	buf_len += WL_PKT_FILTER_FIXED_LEN;
	buf_len += (WL_PKT_FILTER_PATTERN_FIXED_LEN + 2 * mask_size);

	/* Keep-alive attributes are set in local	variable (keep_alive_pkt), and
	** then memcpy'ed into buffer (keep_alive_pktp) since there is no
	** guarantee that the buffer is properly aligned.
	*/
	memcpy((char *)pkt_filterp,
	       &pkt_filter,
	       WL_PKT_FILTER_FIXED_LEN + WL_PKT_FILTER_PATTERN_FIXED_LEN);

	rc = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, buf, buf_len);
	rc = rc >= 0 ? 0 : rc;

	if (rc)
		DHD_TRACE(("%s: failed to add pktfilter %s, retcode = %d\n",
		__FUNCTION__, arg, rc));
	else
		DHD_TRACE(("%s: successfully added pktfilter %s\n",
		__FUNCTION__, arg));

fail:
	if (arg_org)
		MFREE(dhd->osh, arg_org, strlen(arg) + 1);

	if (buf)
		MFREE(dhd->osh, buf, BUF_SIZE);
}

void
dhd_arp_offload_set(dhd_pub_t * dhd, int arp_mode)
{
	char iovbuf[32];
	int retcode;

	bcm_mkiovar("arp_ol", (char *)&arp_mode, 4, iovbuf, sizeof(iovbuf));
	retcode = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
	retcode = retcode >= 0 ? 0 : retcode;
	if (retcode)
		DHD_TRACE(("%s: failed to set ARP offload mode to 0x%x, retcode = %d\n",
		__FUNCTION__, arp_mode, retcode));
	else
		DHD_TRACE(("%s: successfully set ARP offload mode to 0x%x\n",
		__FUNCTION__, arp_mode));
}

void
dhd_arp_offload_enable(dhd_pub_t * dhd, int arp_enable)
{
	char iovbuf[32];
	int retcode;

	bcm_mkiovar("arpoe", (char *)&arp_enable, 4, iovbuf, sizeof(iovbuf));
	retcode = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
	retcode = retcode >= 0 ? 0 : retcode;
	if (retcode)
		DHD_TRACE(("%s: failed to enabe ARP offload to %d, retcode = %d\n",
		__FUNCTION__, arp_enable, retcode));
	else
		DHD_TRACE(("%s: successfully enabed ARP offload to %d\n",
		__FUNCTION__, arp_enable));
}

int
dhd_preinit_ioctls(dhd_pub_t *dhd)
{
	char iovbuf[WL_EVENTING_MASK_LEN + 12];	/*  Room for "event_msgs" + '\0' + bitvec  */
	uint up = 0;
	char buf[128], *ptr;
	uint power_mode = PM_FAST;
	uint32 dongle_align = DHD_SDALIGN;
	uint32 glom = 0;
	uint bcn_timeout = 3;
	int scan_assoc_time = 40;
	int scan_unassoc_time = 40;
	uint32 listen_interval = LISTEN_INTERVAL; /* Default Listen Interval in Beacons */
	int ret = 0;
	
	uint btc_wire_var = 3;
	uint btc_mode_var = 1;
	
#ifdef GET_CUSTOM_MAC_ENABLE
	struct ether_addr ea_addr;
#endif /* GET_CUSTOM_MAC_ENABLE */

	dhd_os_proto_block(dhd);

#ifdef GET_CUSTOM_MAC_ENABLE
	/* Read MAC address from external customer place
	** NOTE that default mac address has to be present in otp or nvram file to bring up
	** firmware but unique per board mac address maybe provided by customer code
	*/
	ret = dhd_custom_get_mac_address(ea_addr.octet);
	if (!ret) {
		bcm_mkiovar("cur_etheraddr", (void *)&ea_addr, ETHER_ADDR_LEN, buf, sizeof(buf));
		ret = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, buf, sizeof(buf));
		if (ret < 0) {
			DHD_ERROR(("%s: can't set MAC address , error=%d\n", __FUNCTION__, ret));
		}
		else
			memcpy(dhd->mac.octet, (void *)&ea_addr, ETHER_ADDR_LEN);
	}
#endif  /* GET_CUSTOM_MAC_ENABLE */

	/* Set Country code */
	if (dhd->country_code[0] != 0) {
		if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_COUNTRY,
			dhd->country_code, sizeof(dhd->country_code)) < 0) {
			DHD_ERROR(("%s: country code setting failed\n", __FUNCTION__));
		}
	}

	/* Set Listen Interval */
	bcm_mkiovar("assoc_listen", (char *)&listen_interval, 4, iovbuf, sizeof(iovbuf));
	if ((ret = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf))) < 0)
		DHD_ERROR(("%s assoc_listen failed %d\n", __FUNCTION__, ret));

	/* query for 'ver' to get version info from firmware */
	memset(buf, 0, sizeof(buf));
	ptr = buf;
	bcm_mkiovar("ver", 0, 0, buf, sizeof(buf));
	dhdcdc_query_ioctl(dhd, 0, WLC_GET_VAR, buf, sizeof(buf));
	bcmstrtok(&ptr, "\n", 0);
	/* Print fw version info */
	DHD_ERROR(("Firmware version = %s\n", buf));

	/* Set PowerSave mode */
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM, (char *)&power_mode, sizeof(power_mode));

	/* Match Host and Dongle rx alignment */
	bcm_mkiovar("bus:txglomalign", (char *)&dongle_align, 4, iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	/* disable glom option per default */
	bcm_mkiovar("bus:txglom", (char *)&glom, 4, iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	/* Setup timeout if Beacons are lost and roam is off to report link down */
	bcm_mkiovar("bcn_timeout", (char *)&bcn_timeout, 4, iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	/* Enable/Disable build-in roaming to allowed ext supplicant to take of romaing */
	bcm_mkiovar("roam_off", (char *)&dhd_roam, 4, iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	if (dhd_roam == 0)
	{
		/* set internal roaming roaming parameters */
		int roam_scan_period = 30; /* in sec */
		int roam_fullscan_period = 120; /* in sec */
		int roam_trigger = -85;
		int roam_delta = 15;
		int band;
		int band_temp_set = WLC_BAND_2G;

		if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_ROAM_SCAN_PERIOD, \
			(char *)&roam_scan_period, sizeof(roam_scan_period)) < 0)
			DHD_ERROR(("%s: roam scan setup failed\n", __FUNCTION__));

		bcm_mkiovar("fullroamperiod", (char *)&roam_fullscan_period, \
					 4, iovbuf, sizeof(iovbuf));
		if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, \
			iovbuf, sizeof(iovbuf)) < 0)
			DHD_ERROR(("%s: roam fullscan setup failed\n", __FUNCTION__));

		if (dhdcdc_query_ioctl(dhd, 0, WLC_GET_BAND, \
				(char *)&band, sizeof(band)) < 0)
			DHD_ERROR(("%s: roam delta setting failed\n", __FUNCTION__));
		else {
			if ((band == WLC_BAND_AUTO) || (band == WLC_BAND_ALL))
			{
				/* temp set band to insert new roams values */
				if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_BAND, \
					(char *)&band_temp_set, sizeof(band_temp_set)) < 0)
					DHD_ERROR(("%s: local band seting failed\n", __FUNCTION__));
			}
			if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_ROAM_DELTA, \
				(char *)&roam_delta, sizeof(roam_delta)) < 0)
				DHD_ERROR(("%s: roam delta setting failed\n", __FUNCTION__));

			if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_ROAM_TRIGGER, \
				(char *)&roam_trigger, sizeof(roam_trigger)) < 0)
				DHD_ERROR(("%s: roam trigger setting failed\n", __FUNCTION__));

			/* Restore original band settinngs */
			if (dhdcdc_set_ioctl(dhd, 0, WLC_SET_BAND, \
				(char *)&band, sizeof(band)) < 0)
				DHD_ERROR(("%s: Original band restore failed\n", __FUNCTION__));
		}
	}

	if(!strcmp(chipname, "4319")) /*Enable BT/WLAN COEX mode for chip bcm4319 */
	{
		/* Set btc configuration */
		bcm_mkiovar("btc_wire", (char *)&btc_wire_var, 4, iovbuf, sizeof(iovbuf));
		dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
		bcm_mkiovar("btc_mode", (char *)&btc_mode_var, 4, iovbuf, sizeof(iovbuf));
		dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
		DHD_ERROR(("%s: enable 3 wire BT COEX\n", __FUNCTION__));
		
	}

	/* Force STA UP */
	if (dhd_radio_up)
		dhdcdc_set_ioctl(dhd, 0, WLC_UP, (char *)&up, sizeof(up));

	/* Setup event_msgs */
	bcm_mkiovar("event_msgs", dhd->eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	dhdcdc_set_ioctl(dhd, 0, WLC_SET_SCAN_CHANNEL_TIME, (char *)&scan_assoc_time,
		sizeof(scan_assoc_time));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_SCAN_UNASSOC_TIME, (char *)&scan_unassoc_time,
		sizeof(scan_unassoc_time));

#ifdef ARP_OFFLOAD_SUPPORT
	/* Set and enable ARP offload feature */
	if (dhd_arp_enable)
		dhd_arp_offload_set(dhd, dhd_arp_mode);
	dhd_arp_offload_enable(dhd, dhd_arp_enable);
#endif /* ARP_OFFLOAD_SUPPORT */

#ifdef PKT_FILTER_SUPPORT
	{
		int i;
		/* Set up pkt filter */
		if (dhd_pkt_filter_enable) {
			for (i = 0; i < dhd->pktfilter_count; i++) {
				dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
				dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
					dhd_pkt_filter_init, dhd_master_mode);
			}
		}
	}
#endif /* PKT_FILTER_SUPPORT */

#if defined(KEEP_ALIVE)
	{
	/* Set Keep Alive : be sure to use FW with -keepalive */
	int res;

	if (ap_fw_loaded == FALSE) {
		if ((res = dhd_keep_alive_onoff(dhd, 1)) < 0)
			DHD_ERROR(("%s set keeplive failed %d\n", \
		__FUNCTION__, res));
		}
	}
#endif

	dhd_os_proto_unblock(dhd);

	return 0;
}

#ifdef SIMPLE_ISCAN

uint iscan_thread_id;
iscan_buf_t * iscan_chain = 0;

iscan_buf_t *
dhd_iscan_allocate_buf(dhd_pub_t *dhd, iscan_buf_t **iscanbuf)
{
	iscan_buf_t *iscanbuf_alloc = 0;
	iscan_buf_t *iscanbuf_head;

	dhd_iscan_lock();

	iscanbuf_alloc = (iscan_buf_t*)MALLOC(dhd->osh, sizeof(iscan_buf_t));
	if (iscanbuf_alloc == NULL)
		goto fail;

	iscanbuf_alloc->next = NULL;
	iscanbuf_head = *iscanbuf;

	DHD_ISCAN(("%s: addr of allocated node = 0x%X"
		   "addr of iscanbuf_head = 0x%X dhd = 0x%X\n",
		   __FUNCTION__, iscanbuf_alloc, iscanbuf_head, dhd));

	if (iscanbuf_head == NULL) {
		*iscanbuf = iscanbuf_alloc;
		DHD_ISCAN(("%s: Head is allocated\n", __FUNCTION__));
		goto fail;
	}

	while (iscanbuf_head->next)
		iscanbuf_head = iscanbuf_head->next;

	iscanbuf_head->next = iscanbuf_alloc;

fail:
	dhd_iscan_unlock();
	return iscanbuf_alloc;
}

void
dhd_iscan_free_buf(void *dhdp, iscan_buf_t *iscan_delete)
{
	iscan_buf_t *iscanbuf_free = 0;
	iscan_buf_t *iscanbuf_prv = 0;
	iscan_buf_t *iscanbuf_cur = iscan_chain;
	dhd_pub_t *dhd = dhd_bus_pub(dhdp);

	dhd_iscan_lock();
	/* If iscan_delete is null then delete the entire
	 * chain or else delete specific one provided
	 */
	if (!iscan_delete) {
		while (iscanbuf_cur) {
			iscanbuf_free = iscanbuf_cur;
			iscanbuf_cur = iscanbuf_cur->next;
			iscanbuf_free->next = 0;
			MFREE(dhd->osh, iscanbuf_free, sizeof(iscan_buf_t));
		}
		iscan_chain = 0;
	} else {
		while (iscanbuf_cur) {
			if (iscanbuf_cur == iscan_delete)
				break;
			iscanbuf_prv = iscanbuf_cur;
			iscanbuf_cur = iscanbuf_cur->next;
		}
		if (iscanbuf_prv)
			iscanbuf_prv->next = iscan_delete->next;

		iscan_delete->next = 0;
		MFREE(dhd->osh, iscan_delete, sizeof(iscan_buf_t));

		if (!iscanbuf_prv)
			iscan_chain = 0;
	}
	dhd_iscan_unlock();
}

iscan_buf_t *
dhd_iscan_result_buf(void)
{
	return iscan_chain;
}



/*
* print scan cache
* print partial iscan_skip list differently
*/
int
dhd_iscan_print_cache(iscan_buf_t *iscan_skip)
{
	int i = 0, l = 0;
	iscan_buf_t *iscan_cur;
	wl_iscan_results_t *list;
	wl_scan_results_t *results;
	wl_bss_info_t UNALIGNED *bi;

	dhd_iscan_lock();

	iscan_cur = dhd_iscan_result_buf();

	while (iscan_cur) {
		list = (wl_iscan_results_t *)iscan_cur->iscan_buf;
		if (!list)
			break;

		results = (wl_scan_results_t *)&list->results;
		if (!results)
			break;

		if (results->version != WL_BSS_INFO_VERSION) {
			DHD_ISCAN(("%s: results->version %d != WL_BSS_INFO_VERSION\n",
				__FUNCTION__, results->version));
			goto done;
		}

		bi = results->bss_info;
		for (i = 0; i < results->count; i++) {
			if (!bi)
				break;

			DHD_ISCAN(("%s[%2.2d:%2.2d] %X:%X:%X:%X:%X:%X\n",
				iscan_cur != iscan_skip?"BSS":"bss", l, i,
				bi->BSSID.octet[0], bi->BSSID.octet[1], bi->BSSID.octet[2],
				bi->BSSID.octet[3], bi->BSSID.octet[4], bi->BSSID.octet[5]));

			bi = (wl_bss_info_t *)((uintptr)bi + dtoh32(bi->length));
		}
		iscan_cur = iscan_cur->next;
		l++;
	}

done:
	dhd_iscan_unlock();
	return 0;
}

/*
* delete disappeared AP from specific scan cache but skip partial list in iscan_skip
*/
int
dhd_iscan_delete_bss(void *dhdp, void *addr, iscan_buf_t *iscan_skip)
{
	int i = 0, j = 0, l = 0;
	iscan_buf_t *iscan_cur;
	wl_iscan_results_t *list;
	wl_scan_results_t *results;
	wl_bss_info_t UNALIGNED *bi, *bi_new, *bi_next;

	uchar *s_addr = addr;

	dhd_iscan_lock();
	DHD_ISCAN(("%s: BSS to remove %X:%X:%X:%X:%X:%X\n",
		__FUNCTION__, s_addr[0], s_addr[1], s_addr[2],
		s_addr[3], s_addr[4], s_addr[5]));

	iscan_cur = dhd_iscan_result_buf();

	while (iscan_cur) {
		if (iscan_cur != iscan_skip) {
			list = (wl_iscan_results_t *)iscan_cur->iscan_buf;
			if (!list)
				break;

			results = (wl_scan_results_t *)&list->results;
			if (!results)
				break;

			if (results->version != WL_BSS_INFO_VERSION) {
				DHD_ERROR(("%s: results->version %d != WL_BSS_INFO_VERSION\n",
				__FUNCTION__, results->version));
				goto done;
			}

			bi = results->bss_info;
			for (i = 0; i < results->count; i++) {
				if (!bi)
					break;

				if (!memcmp(bi->BSSID.octet, addr, ETHER_ADDR_LEN)) {
					DHD_ISCAN(("%s: Del BSS[%2.2d:%2.2d] %X:%X:%X:%X:%X:%X\n",
					__FUNCTION__, l, i, bi->BSSID.octet[0],
					bi->BSSID.octet[1], bi->BSSID.octet[2],
					bi->BSSID.octet[3], bi->BSSID.octet[4],
					bi->BSSID.octet[5]));

					bi_new = bi;
					bi = (wl_bss_info_t *)((uintptr)bi + dtoh32(bi->length));
/*
					if(bi && bi_new) {
						bcopy(bi, bi_new, results->buflen -
						dtoh32(bi_new->length));
						results->buflen -= dtoh32(bi_new->length);
					}
*/
					results->buflen -= dtoh32(bi_new->length);
					results->count--;

					for (j = i; j < results->count; j++) {
						if (bi && bi_new) {
							DHD_ISCAN(("%s: Moved up BSS[%2.2d:%2.2d]"
							"%X:%X:%X:%X:%X:%X\n",
							__FUNCTION__, l, j, bi->BSSID.octet[0],
							bi->BSSID.octet[1], bi->BSSID.octet[2],
							bi->BSSID.octet[3], bi->BSSID.octet[4],
							bi->BSSID.octet[5]));

							bi_next = (wl_bss_info_t *)((uintptr)bi +
								dtoh32(bi->length));
							bcopy(bi, bi_new, dtoh32(bi->length));
							bi_new = (wl_bss_info_t *)((uintptr)bi_new +
								dtoh32(bi_new->length));
							bi = bi_next;
						}
					}

					if (results->count == 0) {
						/* Prune now empty partial scan list */
						dhd_iscan_free_buf(dhdp, iscan_cur);
						goto done;
					}
					break;
				}
				bi = (wl_bss_info_t *)((uintptr)bi + dtoh32(bi->length));
			}
		}
		iscan_cur = iscan_cur->next;
		l++;
	}

done:
	dhd_iscan_unlock();
	return 0;
}

int
dhd_iscan_remove_duplicates(void * dhdp, iscan_buf_t *iscan_cur)
{
	int i = 0;
	wl_iscan_results_t *list;
	wl_scan_results_t *results;
	wl_bss_info_t UNALIGNED *bi, *bi_new, *bi_next;

	dhd_iscan_lock();

	DHD_ISCAN(("%s: Scan cache before delete\n",
		__FUNCTION__));
	dhd_iscan_print_cache(iscan_cur);

	if (!iscan_cur)
		goto done;

	list = (wl_iscan_results_t *)iscan_cur->iscan_buf;
	if (!list)
		goto done;

	results = (wl_scan_results_t *)&list->results;
	if (!results)
		goto done;

	if (results->version != WL_BSS_INFO_VERSION) {
		DHD_ERROR(("%s: results->version %d != WL_BSS_INFO_VERSION\n",
			__FUNCTION__, results->version));
		goto done;
	}

	bi = results->bss_info;
	for (i = 0; i < results->count; i++) {
		if (!bi)
			break;

		DHD_ISCAN(("%s: Find dups for BSS[%2.2d] %X:%X:%X:%X:%X:%X\n",
			__FUNCTION__, i, bi->BSSID.octet[0], bi->BSSID.octet[1], bi->BSSID.octet[2],
			bi->BSSID.octet[3], bi->BSSID.octet[4], bi->BSSID.octet[5]));

		dhd_iscan_delete_bss(dhdp, bi->BSSID.octet, iscan_cur);

		bi = (wl_bss_info_t *)((uintptr)bi + dtoh32(bi->length));
	}

done:
	DHD_ISCAN(("%s: Scan cache after delete\n", __FUNCTION__));
	dhd_iscan_print_cache(iscan_cur);
	dhd_iscan_unlock();
	return 0;
}

void
dhd_iscan_ind_scan_confirm(void *dhdp, bool status)
{

	dhd_ind_scan_confirm(dhdp, status);
}

int
dhd_iscan_request(void * dhdp, uint16 action)
{
	int rc;
	wl_iscan_params_t params;
	dhd_pub_t *dhd = dhd_bus_pub(dhdp);
	char buf[WLC_IOCTL_SMLEN];


	memset(&params, 0, sizeof(wl_iscan_params_t));
	memcpy(&params.params.bssid, &ether_bcast, ETHER_ADDR_LEN);

	params.params.bss_type = DOT11_BSSTYPE_ANY;
	params.params.scan_type = DOT11_SCANTYPE_ACTIVE;

	params.params.nprobes = htod32(-1);
	params.params.active_time = htod32(-1);
	params.params.passive_time = htod32(-1);
	params.params.home_time = htod32(-1);
	params.params.channel_num = htod32(0);

	params.version = htod32(ISCAN_REQ_VERSION);
	params.action = htod16(action);
	params.scan_duration = htod16(0);

	bcm_mkiovar("iscan", (char *)&params, sizeof(wl_iscan_params_t), buf, WLC_IOCTL_SMLEN);
	rc = dhd_wl_ioctl(dhdp, WLC_SET_VAR, buf, WLC_IOCTL_SMLEN);

	return rc;
}

static int
dhd_iscan_get_partial_result(void *dhdp, uint *scan_count)
{
	wl_iscan_results_t *list_buf;
	wl_iscan_results_t list;
	wl_scan_results_t *results;
	iscan_buf_t *iscan_cur;
	int status = -1;
	dhd_pub_t *dhd = dhd_bus_pub(dhdp);
	int rc;


	iscan_cur = dhd_iscan_allocate_buf(dhd, &iscan_chain);
	if (!iscan_cur) {
		DHD_ERROR(("%s: Failed to allocate node\n", __FUNCTION__));
		dhd_iscan_free_buf(dhdp, 0);
		dhd_iscan_request(dhdp, WL_SCAN_ACTION_ABORT);
		goto fail;
	}

	dhd_iscan_lock();

	memset(iscan_cur->iscan_buf, 0, WLC_IW_ISCAN_MAXLEN);
	list_buf = (wl_iscan_results_t*)iscan_cur->iscan_buf;
	results = &list_buf->results;
	results->buflen = WL_ISCAN_RESULTS_FIXED_SIZE;
	results->version = 0;
	results->count = 0;

	memset(&list, 0, sizeof(list));
	list.results.buflen = htod32(WLC_IW_ISCAN_MAXLEN);
	bcm_mkiovar("iscanresults", (char *)&list, WL_ISCAN_RESULTS_FIXED_SIZE,
		iscan_cur->iscan_buf, WLC_IW_ISCAN_MAXLEN);
	rc = dhd_wl_ioctl(dhdp, WLC_GET_VAR, iscan_cur->iscan_buf, WLC_IW_ISCAN_MAXLEN);

	results->buflen = dtoh32(results->buflen);
	results->version = dtoh32(results->version);
	*scan_count = results->count = dtoh32(results->count);
	status = dtoh32(list_buf->status);

	dhd_iscan_unlock();

	if (!(*scan_count))
		dhd_iscan_free_buf(dhdp, iscan_cur);
	else
		dhd_iscan_remove_duplicates(dhdp, iscan_cur);


fail:
	return status;
}

#endif 

/* Function to estimate possible DTIM_SKIP value */
int dhd_get_dtim_skip(dhd_pub_t *dhd)
{
	int bcn_li_dtim;
	char buf[128];
	int ret;
	int dtim_assoc = 0;

	if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
		bcn_li_dtim = 3;
	else
		bcn_li_dtim = dhd->dtim_skip;

	/* Read DTIM value if associated */
	memset(buf, 0, sizeof(buf));
	bcm_mkiovar("dtim_assoc", 0, 0, buf, sizeof(buf));
	if ((ret = dhdcdc_query_ioctl(dhd, 0, WLC_GET_VAR, buf, sizeof(buf))) < 0) {
		DHD_ERROR(("%s failed code %d\n", __FUNCTION__, ret));
		bcn_li_dtim = 1;
		goto exit;
	}
	else
		dtim_assoc = dtoh32(*(int *)buf);

	DHD_ERROR(("%s bcn_li_dtim=%d DTIM=%d Listen=%d\n", \
			 __FUNCTION__, bcn_li_dtim, dtim_assoc, LISTEN_INTERVAL));

	/* if not assocated just eixt */
	if (dtim_assoc == 0) {
		goto exit;
	}

	/* check if sta listen interval fits into AP dtim */
	if (dtim_assoc > LISTEN_INTERVAL) {
		/* AP DTIM to big for our Listen Interval : no dtim skiping */
		bcn_li_dtim = 1;
		DHD_ERROR(("%s DTIM=%d > Listen=%d : too big ...\n", \
				 __FUNCTION__, dtim_assoc, LISTEN_INTERVAL));
		goto exit;
	}

	if ((bcn_li_dtim * dtim_assoc) > LISTEN_INTERVAL) {
		/* Round up dtim_skip to fit into STAs Listen Interval */
		bcn_li_dtim = (int)(LISTEN_INTERVAL / dtim_assoc);
		DHD_TRACE(("%s agjust dtim_skip as %d\n", __FUNCTION__, bcn_li_dtim));
	}

exit:
	return bcn_li_dtim;
}

#ifdef PNO_SUPPORT
int dhd_pno_clean(dhd_pub_t *dhd)
{
	char iovbuf[128];
	int pfn_enabled = 0;
	int iov_len = 0;
	int ret;

	/* Disable pfn */
	iov_len = bcm_mkiovar("pfn", (char *)&pfn_enabled, 4, iovbuf, sizeof(iovbuf));
	if ((ret = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf))) >= 0) {
		/* clear pfn */
		iov_len = bcm_mkiovar("pfnclear", 0, 0, iovbuf, sizeof(iovbuf));
		if (iov_len) {
			if ((ret = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, iov_len)) < 0) {
				DHD_ERROR(("%s failed code %d\n", __FUNCTION__, ret));
			}
		}
		else {
			ret = -1;
			DHD_ERROR(("%s failed code %d\n", __FUNCTION__, iov_len));
		}
	}
	else
		DHD_ERROR(("%s failed code %d\n", __FUNCTION__, ret));

	return ret;
}

int dhd_pno_enable(dhd_pub_t *dhd, int pfn_enabled)
{
	char iovbuf[128];
	int ret = -1;

	if ((!dhd) && ((pfn_enabled != 0) || (pfn_enabled != 1))) {
		DHD_ERROR(("%s error exit\n", __FUNCTION__));
		return ret;
	}

	/* Enable/disable PNO */
	if ((ret = bcm_mkiovar("pfn", (char *)&pfn_enabled, 4, iovbuf, sizeof(iovbuf))) > 0) {
		if ((ret = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf))) < 0) {
			DHD_ERROR(("%s failed for error=%d\n", __FUNCTION__, ret));
			return ret;
		}
		else {
			dhd->pno_enable = pfn_enabled;
			DHD_TRACE(("%s set pno as %d\n", __FUNCTION__, dhd->pno_enable));
		}
	}
	else DHD_ERROR(("%s failed err=%d\n", __FUNCTION__, ret));

	return ret;
}

/* Function to execute combined scan */
int
dhd_pno_set(dhd_pub_t *dhd, wlc_ssid_t* ssids_local, int nssid, ushort scan_fr)
{
	int err = -1;
	char iovbuf[128];
	int k, i;
	wl_pfn_param_t pfn_param;
	wl_pfn_t	pfn_element;

	DHD_TRACE(("%s nssid=%d nchan=%d\n", __FUNCTION__, nssid, scan_fr));

	if ((!dhd) && (!ssids_local)) {
		DHD_ERROR(("%s error exit\n", __FUNCTION__));
		err = -1;
	}

	/* Check for broadcast ssid */
	for (k = 0; k < nssid; k++) {
		if (!ssids_local[k].SSID_len) {
			DHD_ERROR(("%d: Broadcast SSID is ilegal for PNO setting\n", k));
			return err;
		}
	}
#define  PNO_DUMP 1
#ifdef PNO_DUMP
	{
		int j;
		for (j = 0; j < nssid; j++) {
			DHD_ERROR(("%d: scan  for  %s size =%d\n", j,
				ssids_local[j].SSID, ssids_local[j].SSID_len));
		}
	}
#endif /* PNO_DUMP */

	/* clean up everything */
	if  ((err = dhd_pno_clean(dhd)) < 0) {
		DHD_ERROR(("%s failed error=%d\n", __FUNCTION__, err));
		return err;
	}
	memset(&pfn_param, 0, sizeof(pfn_param));
	memset(&pfn_element, 0, sizeof(pfn_element));

	/* set pfn parameters */
	pfn_param.version = htod32(PFN_VERSION);
	pfn_param.flags = htod16((PFN_LIST_ORDER << SORT_CRITERIA_BIT));

	/* set up pno scan fr */
	if (scan_fr  != 0)
		pfn_param.scan_freq = htod32(scan_fr);

	if (pfn_param.scan_freq > PNO_SCAN_MAX_FW) {
		DHD_ERROR(("%s pno freq above %d sec\n", __FUNCTION__, PNO_SCAN_MAX_FW));
		return err;
	}

	bcm_mkiovar("pfn_set", (char *)&pfn_param, sizeof(pfn_param), iovbuf, sizeof(iovbuf));
	dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

	/* set all pfn ssid */
	for (i = 0; i < nssid; i++) {

		pfn_element.bss_type = htod32(DOT11_BSSTYPE_INFRASTRUCTURE);
		pfn_element.auth = (DOT11_OPEN_SYSTEM);
		pfn_element.wpa_auth = htod32(WPA_AUTH_PFN_ANY);
		pfn_element.wsec = htod32(0);
		pfn_element.infra = htod32(1);

		memcpy((char *)pfn_element.ssid.SSID, ssids_local[i].SSID, ssids_local[i].SSID_len);
		pfn_element.ssid.SSID_len = ssids_local[i].SSID_len;

		if ((err =
		bcm_mkiovar("pfn_add", (char *)&pfn_element,
			sizeof(pfn_element), iovbuf, sizeof(iovbuf))) > 0) {
			if ((err =
			dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf))) < 0) {
				DHD_ERROR(("%s failed for i=%d error=%d\n",
					__FUNCTION__, i, err));
				return err;
			}
			else
				DHD_ERROR(("%s set OK with PNO time=%d\n", __FUNCTION__, \
								pfn_param.scan_freq));
		}
		else DHD_ERROR(("%s failed err=%d\n", __FUNCTION__, err));
	}

	/* Enable PNO */
	/* dhd_pno_enable(dhd, 1); */
	return err;
}

int dhd_pno_get_status(dhd_pub_t *dhd)
{
	int ret = -1;

	if (!dhd)
		return ret;
	else
		return (dhd->pno_enable);
}

#endif /* PNO_SUPPORT */

#if defined(KEEP_ALIVE)
int dhd_keep_alive_onoff(dhd_pub_t *dhd, int ka_on)
{
	char buf[256];
	char *buf_ptr = buf;
	wl_keep_alive_pkt_t keep_alive_pkt;
	char * str;
	int str_len, buf_len;
	int res = 0;
	int keep_alive_period = KEEP_ALIVE_PERIOD; /* in ms */

	DHD_TRACE(("%s: ka:%d\n", __FUNCTION__, ka_on));

	if (ka_on) { /* on suspend */
		keep_alive_pkt.period_msec = keep_alive_period;

	} else {
		/* on resume, turn off keep_alive packets  */
		keep_alive_pkt.period_msec = 0;
	}

	/* IOC var name  */
	str = "keep_alive";
	str_len = strlen(str);
	strncpy(buf, str, str_len);
	buf[str_len] = '\0';
	buf_len = str_len + 1;

	/* set ptr to IOCTL payload after the var name */
	buf_ptr += buf_len; /* include term Z */

	/* copy Keep-alive attributes from local var keep_alive_pkt */
	str = NULL_PKT_STR;
	keep_alive_pkt.len_bytes = strlen(str);

	memcpy(buf_ptr, &keep_alive_pkt, WL_KEEP_ALIVE_FIXED_LEN);
	buf_ptr += WL_KEEP_ALIVE_FIXED_LEN;

	/* copy packet data */
	memcpy(buf_ptr, str, keep_alive_pkt.len_bytes);
	buf_len += (WL_KEEP_ALIVE_FIXED_LEN + keep_alive_pkt.len_bytes);

	res = dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, buf, buf_len);
	return res;
}
#endif /* defined(KEEP_ALIVE) */

/* Androd ComboSCAN support */
/*
 *  data parsing from ComboScan tlv list
*/
int
wl_iw_parse_data_tlv(char** list_str, void *dst, int dst_size, const char token,
                     int input_size, int *bytes_left)
{
	char* str = *list_str;
	uint16 short_temp;
	uint32 int_temp;

	if ((list_str == NULL) || (*list_str == NULL) ||(bytes_left == NULL) || (*bytes_left < 0)) {
		DHD_ERROR(("%s error paramters\n", __FUNCTION__));
		return -1;
	}

	/* Clean all dest bytes */
	memset(dst, 0, dst_size);
	while (*bytes_left > 0) {

		if (str[0] != token) {
			DHD_TRACE(("%s NOT Type=%d get=%d left_parse=%d \n",
				__FUNCTION__, token, str[0], *bytes_left));
			return -1;
		}

		*bytes_left -= 1;
		str += 1;

		if (input_size == 1) {
			memcpy(dst, str, input_size);
		}
		else if (input_size == 2) {
			memcpy(dst, (char *)htod16(memcpy(&short_temp, str, input_size)),
				input_size);
		}
		else if (input_size == 4) {
			memcpy(dst, (char *)htod32(memcpy(&int_temp, str, input_size)),
				input_size);
		}

		*bytes_left -= input_size;
		str += input_size;
		*list_str = str;
		return 1;
	}
	return 1;
}

/*
 *  channel list parsing from cscan tlv list
*/
int
wl_iw_parse_channel_list_tlv(char** list_str, uint16* channel_list,
                             int channel_num, int *bytes_left)
{
	char* str = *list_str;
	int idx = 0;

	if ((list_str == NULL) || (*list_str == NULL) ||(bytes_left == NULL) || (*bytes_left < 0)) {
		DHD_ERROR(("%s error paramters\n", __FUNCTION__));
		return -1;
	}

	while (*bytes_left > 0) {

		if (str[0] != CSCAN_TLV_TYPE_CHANNEL_IE) {
			*list_str = str;
			DHD_TRACE(("End channel=%d left_parse=%d %d\n", idx, *bytes_left, str[0]));
			return idx;
		}
		/* Get proper CSCAN_TLV_TYPE_CHANNEL_IE */
		*bytes_left -= 1;
		str += 1;

		if (str[0] == 0) {
			/* All channels */
			channel_list[idx] = 0x0;
		}
		else {
			channel_list[idx] = (uint16)str[0];
			DHD_TRACE(("%s channel=%d \n", __FUNCTION__,  channel_list[idx]));
		}
		*bytes_left -= 1;
		str += 1;

		if (idx++ > 255) {
			DHD_ERROR(("%s Too many channels \n", __FUNCTION__));
			return -1;
		}
	}

	*list_str = str;
	return idx;
}

/*
 *  SSIDs list parsing from cscan tlv list
 */
int
wl_iw_parse_ssid_list_tlv(char** list_str, wlc_ssid_t* ssid, int max, int *bytes_left)
{
	char* str =  *list_str;
	int idx = 0;

	if ((list_str == NULL) || (*list_str == NULL) || (*bytes_left < 0)) {
		DHD_ERROR(("%s error paramters\n", __FUNCTION__));
		return -1;
	}

	while (*bytes_left > 0) {

		if (str[0] != CSCAN_TLV_TYPE_SSID_IE) {
			*list_str = str;
			DHD_TRACE(("nssid=%d left_parse=%d %d\n", idx, *bytes_left, str[0]));
			return idx;
		}

		/* Get proper CSCAN_TLV_TYPE_SSID_IE */
		*bytes_left -= 1;
		str += 1;

		if (str[0] == 0) {
			/* Broadcast SSID */
			ssid[idx].SSID_len = 0;
			memset((char*)ssid[idx].SSID, 0x0, DOT11_MAX_SSID_LEN);
			*bytes_left -= 1;
			str += 1;

			DHD_TRACE(("BROADCAST SCAN  left=%d\n", *bytes_left));
		}
		else if (str[0] <= DOT11_MAX_SSID_LEN) {
			/* Get proper SSID size */
			ssid[idx].SSID_len = str[0];
			*bytes_left -= 1;
			str += 1;

			/* Get SSID */
			if (ssid[idx].SSID_len > *bytes_left) {
				DHD_ERROR(("%s out of memory range len=%d but left=%d\n",
				__FUNCTION__, ssid[idx].SSID_len, *bytes_left));
				return -1;
			}

			memcpy((char*)ssid[idx].SSID, str, ssid[idx].SSID_len);

			*bytes_left -= ssid[idx].SSID_len;
			str += ssid[idx].SSID_len;

			DHD_TRACE(("%s :size=%d left=%d\n",
				(char*)ssid[idx].SSID, ssid[idx].SSID_len, *bytes_left));
		}
		else {
			DHD_ERROR(("### SSID size more that %d\n", str[0]));
			return -1;
		}

		if (idx++ >  max) {
			DHD_ERROR(("%s number of SSIDs more that %d\n", __FUNCTION__, idx));
			return -1;
		}
	}

	*list_str = str;
	return idx;
}

/* Parse a comma-separated list from list_str into ssid array, starting
 * at index idx.  Max specifies size of the ssid array.  Parses ssids
 * and returns updated idx; if idx >= max not all fit, the excess have
 * not been copied.  Returns -1 on empty string, or on ssid too long.
 */
int
wl_iw_parse_ssid_list(char** list_str, wlc_ssid_t* ssid, int idx, int max)
{
	char* str, *ptr;

	if ((list_str == NULL) || (*list_str == NULL))
		return -1;

	for (str = *list_str; str != NULL; str = ptr) {

		/* check for next TAG */
		if (!strncmp(str, GET_CHANNEL, strlen(GET_CHANNEL))) {
			*list_str	 = str + strlen(GET_CHANNEL);
			return idx;
		}

		if ((ptr = strchr(str, ',')) != NULL) {
			*ptr++ = '\0';
		}

		if (strlen(str) > DOT11_MAX_SSID_LEN) {
			DHD_ERROR(("ssid <%s> exceeds %d\n", str, DOT11_MAX_SSID_LEN));
			return -1;
		}

		if (strlen(str) == 0)
			ssid[idx].SSID_len = 0;

		if (idx < max) {
			strcpy((char*)ssid[idx].SSID, str);
			ssid[idx].SSID_len = strlen(str);
		}
		idx++;
	}
	return idx;
}

/*
 * Parse channel list from iwpriv CSCAN
 */
int
wl_iw_parse_channel_list(char** list_str, uint16* channel_list, int channel_num)
{
	int num;
	int val;
	char* str;
	char* endptr = NULL;

	if ((list_str == NULL)||(*list_str == NULL))
		return -1;

	str = *list_str;
	num = 0;
	while (strncmp(str, GET_NPROBE, strlen(GET_NPROBE))) {
		val = (int)strtoul(str, &endptr, 0);
		if (endptr == str) {
			printf("could not parse channel number starting at"
				" substring \"%s\" in list:\n%s\n",
				str, *list_str);
			return -1;
		}
		str = endptr + strspn(endptr, " ,");

		if (num == channel_num) {
			DHD_ERROR(("too many channels (more than %d) in channel list:\n%s\n",
				channel_num, *list_str));
			return -1;
		}

		channel_list[num++] = (uint16)val;
	}
	*list_str = str;
	return num;
}
./dhd/sys/dhd_custom_gpio.c0000755000175200017520000001303512077467471020137 0ustar  xionghaoyongxionghaoyong/*
* Customer code to add GPIO control during WLAN start/stop
* Copyright (C) 1999-2010, Broadcom Corporation
* 
*      Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
* 
*      As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module.  An independent module is a module which is not
* derived from this software.  The special exception does not apply to any
* modifications of the software.
* 
*      Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: dhd_custom_gpio.c,v 1.1.4.8.4.1 2010/09/02 23:13:16 Exp $
*/


#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>
#include <bcmutils.h>

#include <dngl_stats.h>
#include <dhd.h>

#include <wlioctl.h>
#include <wl_iw.h>

#include <mach/board.h>

#include <../proc_comm.h>

#define NV_WLAN_MAC_ADDRESS_I		4678
typedef union {
   uint8 wlan_mac_address[6];
} nv_item_type;

#define WL_ERROR(x) printf x
#define WL_TRACE(x)

#ifdef CUSTOMER_HW
extern  void bcm_wlan_power_off(int);
extern  void bcm_wlan_power_on(int);
extern int qsd8x50_wlan_set_carddetect(int val);
#endif /* CUSTOMER_HW */
#ifdef CUSTOMER_HW2
int wifi_set_carddetect(int on);
int wifi_set_power(int on, unsigned long msec);
int wifi_get_irq_number(unsigned long *irq_flags_ptr);
#endif

#if defined(OOB_INTR_ONLY)

#if defined(BCMLXSDMMC)
extern int sdioh_mmc_irq(int irq);
#endif /* (BCMLXSDMMC)  */

#ifdef CUSTOMER_HW3
#include <mach/gpio.h>
#endif

/* Customer specific Host GPIO defintion  */
static int dhd_oob_gpio_num = -1; /* GG 19 */

module_param(dhd_oob_gpio_num, int, 0644);
MODULE_PARM_DESC(dhd_oob_gpio_num, "DHD oob gpio number");

int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr)
{
	int  host_oob_irq = 0;

#ifdef CUSTOMER_HW2
	host_oob_irq = wifi_get_irq_number(irq_flags_ptr);

#else /* for NOT  CUSTOMER_HW2 */
#if defined(CUSTOM_OOB_GPIO_NUM)
	if (dhd_oob_gpio_num < 0) {
		dhd_oob_gpio_num = CUSTOM_OOB_GPIO_NUM;
	}
#endif

	if (dhd_oob_gpio_num < 0) {
		WL_ERROR(("%s: ERROR customer specific Host GPIO is NOT defined \n",
			__FUNCTION__));
		return (dhd_oob_gpio_num);
	}

	WL_ERROR(("%s: customer specific Host GPIO number is (%d)\n",
	         __FUNCTION__, dhd_oob_gpio_num));

#if defined CUSTOMER_HW
	host_oob_irq = MSM_GPIO_TO_INT(dhd_oob_gpio_num);
#elif defined CUSTOMER_HW3
	gpio_request(dhd_oob_gpio_num, "oob irq");
	host_oob_irq = gpio_to_irq(dhd_oob_gpio_num);
	gpio_direction_input(dhd_oob_gpio_num);
#endif /* CUSTOMER_HW */
#endif /* CUSTOMER_HW2 */

	return (host_oob_irq);
}
#endif /* defined(OOB_INTR_ONLY) */

/* Customer function to control hw specific wlan gpios */
void
dhd_customer_gpio_wlan_ctrl(int onoff)
{
	switch (onoff) {
		case WLAN_RESET_OFF:
			WL_TRACE(("%s: call customer specific GPIO to insert WLAN RESET\n",
				__FUNCTION__));
#ifdef CUSTOMER_HW
			bcm_wlan_power_off(2);
#endif /* CUSTOMER_HW */
#ifdef CUSTOMER_HW2
			wifi_set_power(0, 0);
#endif
			WL_ERROR(("=========== WLAN placed in RESET ========\n"));
		break;

		case WLAN_RESET_ON:
			WL_TRACE(("%s: callc customer specific GPIO to remove WLAN RESET\n",
				__FUNCTION__));
#ifdef CUSTOMER_HW
			bcm_wlan_power_on(2);
#endif /* CUSTOMER_HW */
#ifdef CUSTOMER_HW2
			wifi_set_power(1, 0);
#endif
			WL_ERROR(("=========== WLAN going back to live  ========\n"));
		break;

		case WLAN_POWER_OFF:
			WL_TRACE(("%s: call customer specific GPIO to turn off WL_REG_ON\n",
				__FUNCTION__));
#ifdef CUSTOMER_HW
			bcm_wlan_power_off(1);
#endif /* CUSTOMER_HW */
		break;

		case WLAN_POWER_ON:
			WL_TRACE(("%s: call customer specific GPIO to turn on WL_REG_ON\n",
				__FUNCTION__));
#ifdef CUSTOMER_HW
			bcm_wlan_power_on(1);
#endif /* CUSTOMER_HW */
			/* Lets customer power to get stable */
			OSL_DELAY(200);
		break;
	}
}

#ifdef GET_CUSTOM_MAC_ENABLE
/* Function to get custom MAC address */
int
dhd_custom_get_mac_address(unsigned char *buf)
{
	WL_TRACE(("%s Enter\n", __FUNCTION__));
	if (!buf)
		return -EINVAL;

	/* Customer access to MAC address stored outside of DHD driver */
    {
		int rc;
        uint32 nv;
        uint32 nv_value_l;
        uint32 nv_value_h;
        struct ether_addr ea_example = {{0x56, 0x17, 0x10, 0xfc, 0xe0, 0x00}};

        bcopy((char *)&ea_example, buf, sizeof(struct ether_addr));
	    nv = NV_WLAN_MAC_ADDRESS_I;
        nv_value_l = 0;
		if ((rc = msm_proc_comm(PCOM_NV_READ, &nv, &nv_value_l)) < 0) {
	        WL_ERROR(("%s: get MAC address failed, rc=%d\n", __FUNCTION__, rc));
            return 0;
	    }

	    nv_value_h = 0x80000000;
	    if ((rc = msm_proc_comm(PCOM_NV_READ, &nv, &nv_value_h)) < 0) {
	        WL_ERROR(("%s: get MAC address failed, rc=%d\n", __FUNCTION__, rc));
	        return 0;
	    }
        
		buf[5] = (nv_value_l) & 0xff;
        buf[4] = (nv_value_l >> 8) & 0xff;
        buf[3] = (nv_value_l >> 16) & 0xff;
		buf[2] = (nv_value_h) & 0xff;
        buf[1] = (nv_value_h >> 8) & 0xff;
        buf[0] = (nv_value_h >> 16) & 0xff;
    }

	return 0;
}
#endif /* GET_CUSTOM_MAC_ENABLE */
./dhd/sys/dhd_linux_sched.c0000755000175200017520000000307112077456476020116 0ustar  xionghaoyongxionghaoyong/*
 * Expose some of the kernel scheduler routines
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_linux_sched.c,v 1.1.34.1.6.1 2009/01/16 01:17:40 Exp $
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linuxver.h>

int setScheduler(struct task_struct *p, int policy, struct sched_param *param)
{
	int rc = 0;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
	rc = sched_setscheduler(p, policy, param);
#endif /* LinuxVer */
	return rc;
}
./dhd/sys/dhd_cdc.c0000755000175200017520000003062112077456476016343 0ustar  xionghaoyongxionghaoyong/*
 * DHD Protocol Module for CDC and BDC.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_cdc.c,v 1.22.4.2.4.7.2.41 2010/06/23 19:58:18 Exp $
 *
 * BDC is like CDC, except it includes a header for data packets to convey
 * packet priority over the bus, and flags (e.g. to indicate checksum status
 * for dongle offload).
 */

#include <typedefs.h>
#include <osl.h>

#include <bcmutils.h>
#include <bcmcdc.h>
#include <bcmendian.h>

#include <dngl_stats.h>
#include <dhd.h>
#include <dhd_proto.h>
#include <dhd_bus.h>
#include <dhd_dbg.h>
#ifdef CUSTOMER_HW2
int wifi_get_mac_addr(unsigned char *buf);
#endif

extern int dhd_preinit_ioctls(dhd_pub_t *dhd);


/* Packet alignment for most efficient SDIO (can change based on platform) */
#ifndef DHD_SDALIGN
#define DHD_SDALIGN	32
#endif
#if !ISPOWEROF2(DHD_SDALIGN)
#error DHD_SDALIGN is not a power of 2!
#endif

#define RETRIES 2		/* # of retries to retrieve matching ioctl response */
#define BUS_HEADER_LEN	(16+DHD_SDALIGN)	/* Must be atleast SDPCM_RESERVE
				 * defined in dhd_sdio.c (amount of header tha might be added)
				 * plus any space that might be needed for alignment padding.
				 */
#define ROUND_UP_MARGIN	2048 	/* Biggest SDIO block size possible for
				 * round off at the end of buffer
				 */

typedef struct dhd_prot {
	uint16 reqid;
	uint8 pending;
	uint32 lastcmd;
	uint8 bus_header[BUS_HEADER_LEN];
	cdc_ioctl_t msg;
	unsigned char buf[WLC_IOCTL_MAXLEN + ROUND_UP_MARGIN];
} dhd_prot_t;

static int
dhdcdc_msg(dhd_pub_t *dhd)
{
	dhd_prot_t *prot = dhd->prot;
	int len = ltoh32(prot->msg.len) + sizeof(cdc_ioctl_t);

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* NOTE : cdc->msg.len holds the desired length of the buffer to be
	 *        returned. Only up to CDC_MAX_MSG_SIZE of this buffer area
	 *	  is actually sent to the dongle
	 */
	if (len > CDC_MAX_MSG_SIZE)
		len = CDC_MAX_MSG_SIZE;

	/* Send request */
	return dhd_bus_txctl(dhd->bus, (uchar*)&prot->msg, len);
}

static int
dhdcdc_cmplt(dhd_pub_t *dhd, uint32 id, uint32 len)
{
	int ret;
	dhd_prot_t *prot = dhd->prot;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	do {
		ret = dhd_bus_rxctl(dhd->bus, (uchar*)&prot->msg, len+sizeof(cdc_ioctl_t));
		if (ret < 0)
			break;
	} while (CDC_IOC_ID(ltoh32(prot->msg.flags)) != id);

	return ret;
}

int
dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
{
	dhd_prot_t *prot = dhd->prot;
	cdc_ioctl_t *msg = &prot->msg;
	void *info;
	int ret = 0, retries = 0;
	uint32 id, flags = 0;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));
	DHD_CTL(("%s: cmd %d len %d\n", __FUNCTION__, cmd, len));


	/* Respond "bcmerror" and "bcmerrorstr" with local cache */
	if (cmd == WLC_GET_VAR && buf)
	{
		if (!strcmp((char *)buf, "bcmerrorstr"))
		{
			strncpy((char *)buf, bcmerrorstr(dhd->dongle_error), BCME_STRLEN);
			goto done;
		}
		else if (!strcmp((char *)buf, "bcmerror"))
		{
			*(int *)buf = dhd->dongle_error;
			goto done;
		}
	}

	memset(msg, 0, sizeof(cdc_ioctl_t));

	msg->cmd = htol32(cmd);
	msg->len = htol32(len);
	msg->flags = (++prot->reqid << CDCF_IOC_ID_SHIFT);
	CDC_SET_IF_IDX(msg, ifidx);
	msg->flags = htol32(msg->flags);

	if (buf)
		memcpy(prot->buf, buf, len);

	if ((ret = dhdcdc_msg(dhd)) < 0) {
		DHD_ERROR(("dhdcdc_query_ioctl: dhdcdc_msg failed w/status %d\n", ret));
		goto done;
	}

retry:
	/* wait for interrupt and get first fragment */
	if ((ret = dhdcdc_cmplt(dhd, prot->reqid, len)) < 0)
		goto done;

	flags = ltoh32(msg->flags);
	id = (flags & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT;

	if ((id < prot->reqid) && (++retries < RETRIES))
		goto retry;
	if (id != prot->reqid) {
		DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
		           dhd_ifname(dhd, ifidx), __FUNCTION__, id, prot->reqid));
		ret = -EINVAL;
		goto done;
	}

	/* Check info buffer */
	info = (void*)&msg[1];

	/* Copy info buffer */
	if (buf)
	{
		if (ret < (int)len)
			len = ret;
		memcpy(buf, info, len);
	}

	/* Check the ERROR flag */
	if (flags & CDCF_IOC_ERROR)
	{
		ret = ltoh32(msg->status);
		/* Cache error from dongle */
		dhd->dongle_error = ret;
	}

done:
	return ret;
}

int
dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
{
	dhd_prot_t *prot = dhd->prot;
	cdc_ioctl_t *msg = &prot->msg;
	int ret = 0;
	uint32 flags, id;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));
	DHD_CTL(("%s: cmd %d len %d\n", __FUNCTION__, cmd, len));

	memset(msg, 0, sizeof(cdc_ioctl_t));

	msg->cmd = htol32(cmd);
	msg->len = htol32(len);
	msg->flags = (++prot->reqid << CDCF_IOC_ID_SHIFT) | CDCF_IOC_SET;
	CDC_SET_IF_IDX(msg, ifidx);
	msg->flags = htol32(msg->flags);

	if (buf)
		memcpy(prot->buf, buf, len);

	if ((ret = dhdcdc_msg(dhd)) < 0)
		goto done;

	if ((ret = dhdcdc_cmplt(dhd, prot->reqid, len)) < 0)
		goto done;

	flags = ltoh32(msg->flags);
	id = (flags & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT;

	if (id != prot->reqid) {
		DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
		           dhd_ifname(dhd, ifidx), __FUNCTION__, id, prot->reqid));
		ret = -EINVAL;
		goto done;
	}

	/* Check the ERROR flag */
	if (flags & CDCF_IOC_ERROR)
	{
		ret = ltoh32(msg->status);
		/* Cache error from dongle */
		dhd->dongle_error = ret;
	}

done:
	return ret;
}

extern int dhd_bus_interface(struct dhd_bus *bus, uint arg, void* arg2);
int
dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t * ioc, void * buf, int len)
{
	dhd_prot_t *prot = dhd->prot;
	int ret = -1;

	if (dhd->busstate == DHD_BUS_DOWN) {
		DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__));
		return ret;
	}
	dhd_os_proto_block(dhd);

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ASSERT(len <= WLC_IOCTL_MAXLEN);

	if (len > WLC_IOCTL_MAXLEN)
		goto done;

	if (prot->pending == TRUE) {
		DHD_TRACE(("CDC packet is pending!!!! cmd=0x%x (%lu) lastcmd=0x%x (%lu)\n",
			ioc->cmd, (unsigned long)ioc->cmd, prot->lastcmd,
			(unsigned long)prot->lastcmd));
		if ((ioc->cmd == WLC_SET_VAR) || (ioc->cmd == WLC_GET_VAR)) {
			DHD_TRACE(("iovar cmd=%s\n", (char*)buf));
		}
		goto done;
	}

	prot->pending = TRUE;
	prot->lastcmd = ioc->cmd;
	if (ioc->set)
		ret = dhdcdc_set_ioctl(dhd, ifidx, ioc->cmd, buf, len);
	else {
		ret = dhdcdc_query_ioctl(dhd, ifidx, ioc->cmd, buf, len);
		if (ret > 0)
			ioc->used = ret - sizeof(cdc_ioctl_t);
	}

	/* Too many programs assume ioctl() returns 0 on success */
	if (ret >= 0)
		ret = 0;
	else {
		cdc_ioctl_t *msg = &prot->msg;
		ioc->needed = ltoh32(msg->len); /* len == needed when set/query fails from dongle */
	}

	/* Intercept the wme_dp ioctl here */
	if ((!ret) && (ioc->cmd == WLC_SET_VAR) && (!strcmp(buf, "wme_dp"))) {
		int slen, val = 0;

		slen = strlen("wme_dp") + 1;
		if (len >= (int)(slen + sizeof(int)))
			bcopy(((char *)buf + slen), &val, sizeof(int));
		dhd->wme_dp = (uint8) ltoh32(val);
	}

	prot->pending = FALSE;

done:
	dhd_os_proto_unblock(dhd);

	return ret;
}

int
dhd_prot_iovar_op(dhd_pub_t *dhdp, const char *name,
                  void *params, int plen, void *arg, int len, bool set)
{
	return BCME_UNSUPPORTED;
}

void
dhd_prot_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
{
	bcm_bprintf(strbuf, "Protocol CDC: reqid %d\n", dhdp->prot->reqid);
}


void
dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, void *pktbuf)
{
#ifdef BDC
	struct bdc_header *h;
#endif /* BDC */

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifdef BDC
	/* Push BDC header used to convey priority for buses that don't */


	PKTPUSH(dhd->osh, pktbuf, BDC_HEADER_LEN);

	h = (struct bdc_header *)PKTDATA(dhd->osh, pktbuf);

	h->flags = (BDC_PROTO_VER << BDC_FLAG_VER_SHIFT);
	if (PKTSUMNEEDED(pktbuf))
		h->flags |= BDC_FLAG_SUM_NEEDED;


	h->priority = (PKTPRIO(pktbuf) & BDC_PRIORITY_MASK);
	h->flags2 = 0;
	h->rssi = 0;
#endif /* BDC */
	BDC_SET_IF_IDX(h, ifidx);
}


bool
dhd_proto_fcinfo(dhd_pub_t *dhd, void *pktbuf, uint8 *fcbits)
{
#ifdef BDC
	struct bdc_header *h;

	if (PKTLEN(dhd->osh, pktbuf) < BDC_HEADER_LEN) {
		DHD_ERROR(("%s: rx data too short (%d < %d)\n",
			__FUNCTION__, PKTLEN(dhd->osh, pktbuf), BDC_HEADER_LEN));
		return BCME_ERROR;
	}

	h = (struct bdc_header *)PKTDATA(dhd->osh, pktbuf);

	*fcbits = h->priority >> BDC_PRIORITY_FC_SHIFT;
	if ((h->flags2 & BDC_FLAG2_FC_FLAG) == BDC_FLAG2_FC_FLAG)
		return TRUE;
#endif
	return FALSE;
}


int
dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, void *pktbuf)
{
#ifdef BDC
	struct bdc_header *h;
#endif

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifdef BDC
	/* Pop BDC header used to convey priority for buses that don't */

	if (PKTLEN(dhd->osh, pktbuf) < BDC_HEADER_LEN) {
		DHD_ERROR(("%s: rx data too short (%d < %d)\n", __FUNCTION__,
		           PKTLEN(dhd->osh, pktbuf), BDC_HEADER_LEN));
		return BCME_ERROR;
	}

	h = (struct bdc_header *)PKTDATA(dhd->osh, pktbuf);

	if ((*ifidx = BDC_GET_IF_IDX(h)) >= DHD_MAX_IFS) {
		DHD_ERROR(("%s: rx data ifnum out of range (%d)\n",
		           __FUNCTION__, *ifidx));
		return BCME_ERROR;
	}

	if (((h->flags & BDC_FLAG_VER_MASK) >> BDC_FLAG_VER_SHIFT) != BDC_PROTO_VER) {
		DHD_ERROR(("%s: non-BDC packet received, flags 0x%x\n",
		           dhd_ifname(dhd, *ifidx), h->flags));
		return BCME_ERROR;
	}

	if (h->flags & BDC_FLAG_SUM_GOOD) {
		DHD_INFO(("%s: BDC packet received with good rx-csum, flags 0x%x\n",
		          dhd_ifname(dhd, *ifidx), h->flags));
		PKTSETSUMGOOD(pktbuf, TRUE);
	}

	PKTSETPRIO(pktbuf, (h->priority & BDC_PRIORITY_MASK));

	PKTPULL(dhd->osh, pktbuf, BDC_HEADER_LEN);
#endif /* BDC */

	return 0;
}

int
dhd_prot_attach(dhd_pub_t *dhd)
{
	dhd_prot_t *cdc;

#ifndef DHD_USE_STATIC_BUF
	if (!(cdc = (dhd_prot_t *)MALLOC(dhd->osh, sizeof(dhd_prot_t)))) {
		DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
		goto fail;
	}
#else
	if (!(cdc = (dhd_prot_t *)dhd_os_prealloc(DHD_PREALLOC_PROT, sizeof(dhd_prot_t)))) {
		DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
		goto fail;
	}
#endif /* DHD_USE_STATIC_BUF */
	memset(cdc, 0, sizeof(dhd_prot_t));

	/* ensure that the msg buf directly follows the cdc msg struct */
	if ((uintptr)(&cdc->msg + 1) != (uintptr)cdc->buf) {
		DHD_ERROR(("dhd_prot_t is not correctly defined\n"));
		goto fail;
	}

	dhd->prot = cdc;
#ifdef BDC
	dhd->hdrlen += BDC_HEADER_LEN;
#endif
	dhd->maxctl = WLC_IOCTL_MAXLEN + sizeof(cdc_ioctl_t) + ROUND_UP_MARGIN;
	return 0;

fail:
#ifndef DHD_USE_STATIC_BUF
	if (cdc != NULL)
		MFREE(dhd->osh, cdc, sizeof(dhd_prot_t));
#endif
	return BCME_NOMEM;
}

/* ~NOTE~ What if another thread is waiting on the semaphore?  Holding it? */
void
dhd_prot_detach(dhd_pub_t *dhd)
{
#ifndef DHD_USE_STATIC_BUF
	MFREE(dhd->osh, dhd->prot, sizeof(dhd_prot_t));
#endif
	dhd->prot = NULL;
}

void
dhd_prot_dstats(dhd_pub_t *dhd)
{
	/* No stats from dongle added yet, copy bus stats */
	dhd->dstats.tx_packets = dhd->tx_packets;
	dhd->dstats.tx_errors = dhd->tx_errors;
	dhd->dstats.rx_packets = dhd->rx_packets;
	dhd->dstats.rx_errors = dhd->rx_errors;
	dhd->dstats.rx_dropped = dhd->rx_dropped;
	dhd->dstats.multicast = dhd->rx_multicast;
	return;
}

int
dhd_prot_init(dhd_pub_t *dhd)
{
	int ret = 0;
	char buf[128];

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	dhd_os_proto_block(dhd);

	/* Get the device MAC address */
	strcpy(buf, "cur_etheraddr");
	ret = dhdcdc_query_ioctl(dhd, 0, WLC_GET_VAR, buf, sizeof(buf));
	if (ret < 0) {
		dhd_os_proto_unblock(dhd);
		return ret;
	}
	memcpy(dhd->mac.octet, buf, ETHER_ADDR_LEN);

	dhd_os_proto_unblock(dhd);

#ifdef EMBEDDED_PLATFORM
	ret = dhd_preinit_ioctls(dhd);
#endif /* EMBEDDED_PLATFORM */

	/* Always assumes wl for now */
	dhd->iswl = TRUE;

	return ret;
}

void
dhd_prot_stop(dhd_pub_t *dhd)
{
	/* Nothing to do for CDC */
}
./dhd/sys/dhd_proto.h0000755000175200017520000000672512077456476016772 0ustar  xionghaoyongxionghaoyong/*
 * Header file describing the internal (inter-module) DHD interfaces.
 *
 * Provides type definitions and function prototypes used to link the
 * DHD OS, bus, and protocol modules.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_proto.h,v 1.2.82.1.4.1.16.7 2010/05/10 12:54:59 Exp $
 */

#ifndef _dhd_proto_h_
#define _dhd_proto_h_

#include <dhdioctl.h>
#include <wlioctl.h>

#ifndef IOCTL_RESP_TIMEOUT
#define IOCTL_RESP_TIMEOUT  2000 /* In milli second */
#endif

#ifndef IOCTL_CHIP_ACTIVE_TIMEOUT
#define IOCTL_CHIP_ACTIVE_TIMEOUT  10 /* In milli second */
#endif

/*
 * Exported from the dhd protocol module (dhd_cdc, dhd_rndis)
 */

/* Linkage, sets prot link and updates hdrlen in pub */
extern int dhd_prot_attach(dhd_pub_t *dhdp);

/* Unlink, frees allocated protocol memory (including dhd_prot) */
extern void dhd_prot_detach(dhd_pub_t *dhdp);

/* Initialize protocol: sync w/dongle state.
 * Sets dongle media info (iswl, drv_version, mac address).
 */
extern int dhd_prot_init(dhd_pub_t *dhdp);

/* Stop protocol: sync w/dongle state. */
extern void dhd_prot_stop(dhd_pub_t *dhdp);

extern bool dhd_proto_fcinfo(dhd_pub_t *dhd, void *pktbuf, uint8 *fcbits);

/* Add any protocol-specific data header.
 * Caller must reserve prot_hdrlen prepend space.
 */
extern void dhd_prot_hdrpush(dhd_pub_t *, int ifidx, void *txp);

/* Remove any protocol-specific data header. */
extern int dhd_prot_hdrpull(dhd_pub_t *, int *ifidx, void *rxp);

/* Use protocol to issue ioctl to dongle */
extern int dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t * ioc, void * buf, int len);

/* Check for and handle local prot-specific iovar commands */
extern int dhd_prot_iovar_op(dhd_pub_t *dhdp, const char *name,
                             void *params, int plen, void *arg, int len, bool set);

/* Add prot dump output to a buffer */
extern void dhd_prot_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf);

/* Update local copy of dongle statistics */
extern void dhd_prot_dstats(dhd_pub_t *dhdp);

extern int dhd_ioctl(dhd_pub_t * dhd_pub, dhd_ioctl_t *ioc, void * buf, uint buflen);

extern int dhd_preinit_ioctls(dhd_pub_t *dhd);

/********************************
 * For version-string expansion *
 */
#if defined(BDC)
#define DHD_PROTOCOL "bdc"
#elif defined(CDC)
#define DHD_PROTOCOL "cdc"
#elif defined(RNDIS)
#define DHD_PROTOCOL "rndis"
#else
#define DHD_PROTOCOL "unknown"
#endif /* proto */

#endif /* _dhd_proto_h_ */
./dhd/sys/dhd_sdio.c0000755000175200017520000050036012077457125016542 0ustar  xionghaoyongxionghaoyong/*
 * DHD Bus Module for SDIO
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_sdio.c,v 1.157.2.27.2.33.2.129.4.8 2010/12/04 01:14:14 Exp $
 */

#include <typedefs.h>
#include <osl.h>
#include <bcmsdh.h>

#ifdef BCMEMBEDIMAGE
#include BCMEMBEDIMAGE
#endif /* BCMEMBEDIMAGE */

#include <bcmdefs.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include <bcmdevs.h>

#include <siutils.h>
#include <hndpmu.h>
#include <hndsoc.h>
#ifdef DHD_DEBUG
#include <hndrte_armtrap.h>
#include <hndrte_cons.h>
#endif /* DHD_DEBUG */
#include <sbchipc.h>
#include <sbhnddma.h>

#include <sdio.h>
#include <sbsdio.h>
#include <sbsdpcmdev.h>
#include <bcmsdpcm.h>

#include <proto/ethernet.h>
#include <proto/802.1d.h>
#include <proto/802.11.h>

#include <dngl_stats.h>
#include <dhd.h>
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_dbg.h>
#include <dhdioctl.h>
#include <sdiovar.h>

#ifndef DHDSDIO_MEM_DUMP_FNAME
#define DHDSDIO_MEM_DUMP_FNAME         "mem_dump"
#endif

#define QLEN		256	/* bulk rx and tx queue lengths */
#define FCHI		(QLEN - 10)
#define FCLOW		(FCHI / 2)
#define PRIOMASK	7

#define TXRETRIES	2	/* # of retries for tx frames */

#if defined(CONFIG_MACH_SANDGATE2G)
#define DHD_RXBOUND	250	/* Default for max rx frames in one scheduling */
#else
#define DHD_RXBOUND	50	/* Default for max rx frames in one scheduling */
#endif /* defined(CONFIG_MACH_SANDGATE2G) */

#define DHD_TXBOUND	20	/* Default for max tx frames in one scheduling */

#define DHD_TXMINMAX	1	/* Max tx frames if rx still pending */

#define MEMBLOCK	2048		/* Block size used for downloading of dongle image */
#define MAX_DATA_BUF	(32 * 1024)	/* Must be large enough to hold biggest possible glom */

/* Packet alignment for most efficient SDIO (can change based on platform) */
#ifndef DHD_SDALIGN
#define DHD_SDALIGN	32
#endif
#if !ISPOWEROF2(DHD_SDALIGN)
#error DHD_SDALIGN is not a power of 2!
#endif

#ifndef DHD_FIRSTREAD
#define DHD_FIRSTREAD	32
#endif
#if !ISPOWEROF2(DHD_FIRSTREAD)
#error DHD_FIRSTREAD is not a power of 2!
#endif

/* Total length of frame header for dongle protocol */
#define SDPCM_HDRLEN	(SDPCM_FRAMETAG_LEN + SDPCM_SWHEADER_LEN)
#ifdef SDTEST
#define SDPCM_RESERVE	(SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN)
#else
#define SDPCM_RESERVE	(SDPCM_HDRLEN + DHD_SDALIGN)
#endif

/* Space for header read, limit for data packets */
#ifndef MAX_HDR_READ
#define MAX_HDR_READ	32
#endif
#if !ISPOWEROF2(MAX_HDR_READ)
#error MAX_HDR_READ is not a power of 2!
#endif

#define MAX_RX_DATASZ	2048

/* Maximum milliseconds to wait for F2 to come up */
#define DHD_WAIT_F2RDY	3000

/* Bump up limit on waiting for HT to account for first startup;
 * if the image is doing a CRC calculation before programming the PMU
 * for HT availability, it could take a couple hundred ms more, so
 * max out at a 1 second (1000000us).
 */
#if (PMU_MAX_TRANSITION_DLY <= 1000000)
#undef PMU_MAX_TRANSITION_DLY
#define PMU_MAX_TRANSITION_DLY 1000000
#endif

/* Value for ChipClockCSR during initial setup */
#define DHD_INIT_CLKCTL1	(SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_ALP_AVAIL_REQ)
#define DHD_INIT_CLKCTL2	(SBSDIO_FORCE_HW_CLKREQ_OFF | SBSDIO_FORCE_ALP)

/* Flags for SDH calls */
#define F2SYNC	(SDIO_REQ_4BYTE | SDIO_REQ_FIXED)

/* Packet free applicable unconditionally for sdio and sdspi.  Conditional if
 * bufpool was present for gspi bus.
 */
#define PKTFREE2()		if ((bus->bus != SPI_BUS) || bus->usebufpool) \
					PKTFREE(bus->dhd->osh, pkt, FALSE);
DHD_SPINWAIT_SLEEP_INIT(sdioh_spinwait_sleep);
extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);

#ifdef DHD_DEBUG
/* Device console log buffer state */
typedef struct dhd_console {
	uint		count;			/* Poll interval msec counter */
	uint		log_addr;		/* Log struct address (fixed) */
	hndrte_log_t	log;			/* Log struct (host copy) */
	uint		bufsize;		/* Size of log buffer */
	uint8		*buf;			/* Log buffer (host copy) */
	uint		last;			/* Last buffer read index */
} dhd_console_t;
#endif /* DHD_DEBUG */

/* Private data for SDIO bus interaction */
typedef struct dhd_bus {
	dhd_pub_t	*dhd;

	bcmsdh_info_t	*sdh;			/* Handle for BCMSDH calls */
	si_t		*sih;			/* Handle for SI calls */
	char		*vars;			/* Variables (from CIS and/or other) */
	uint		varsz;			/* Size of variables buffer */
	uint32		sbaddr;			/* Current SB window pointer (-1, invalid) */

	sdpcmd_regs_t	*regs;			/* Registers for SDIO core */
	uint		sdpcmrev;		/* SDIO core revision */
	uint		armrev;			/* CPU core revision */
	uint		ramrev;			/* SOCRAM core revision */
	uint32		ramsize;		/* Size of RAM in SOCRAM (bytes) */
	uint32		orig_ramsize;		/* Size of RAM in SOCRAM (bytes) */

	uint32		bus;			/* gSPI or SDIO bus */
	uint32		hostintmask;		/* Copy of Host Interrupt Mask */
	uint32		intstatus;		/* Intstatus bits (events) pending */
	bool		dpc_sched;		/* Indicates DPC schedule (intrpt rcvd) */
	bool		fcstate;		/* State of dongle flow-control */

	uint16		cl_devid;		/* cached devid for dhdsdio_probe_attach() */
	char		*fw_path; /* module_param: path to firmware image */
	char		*nv_path; /* module_param: path to nvram vars file */
	const char      *nvram_params;		/* user specified nvram params. */

	uint		blocksize;		/* Block size of SDIO transfers */
	uint		roundup;		/* Max roundup limit */

	struct pktq	txq;			/* Queue length used for flow-control */
	uint8		flowcontrol;		/* per prio flow control bitmask */
	uint8		tx_seq;			/* Transmit sequence number (next) */
	uint8		tx_max;			/* Maximum transmit sequence allowed */

	uint8		hdrbuf[MAX_HDR_READ + DHD_SDALIGN];
	uint8		*rxhdr;			/* Header of current rx frame (in hdrbuf) */
	uint16		nextlen;		/* Next Read Len from last header */
	uint8		rx_seq;			/* Receive sequence number (expected) */
	bool		rxskip;			/* Skip receive (awaiting NAK ACK) */

	void		*glomd;			/* Packet containing glomming descriptor */
	void		*glom;			/* Packet chain for glommed superframe */
	uint		glomerr;		/* Glom packet read errors */

	uint8		*rxbuf;			/* Buffer for receiving control packets */
	uint		rxblen;			/* Allocated length of rxbuf */
	uint8		*rxctl;			/* Aligned pointer into rxbuf */
	uint8		*databuf;		/* Buffer for receiving big glom packet */
	uint8		*dataptr;		/* Aligned pointer into databuf */
	uint		rxlen;			/* Length of valid data in buffer */

	uint8		sdpcm_ver;		/* Bus protocol reported by dongle */

	bool		intr;			/* Use interrupts */
	bool		poll;			/* Use polling */
	bool		ipend;			/* Device interrupt is pending */
	bool		intdis;			/* Interrupts disabled by isr */
	uint 		intrcount;		/* Count of device interrupt callbacks */
	uint		lastintrs;		/* Count as of last watchdog timer */
	uint		spurious;		/* Count of spurious interrupts */
	uint		pollrate;		/* Ticks between device polls */
	uint		polltick;		/* Tick counter */
	uint		pollcnt;		/* Count of active polls */

#ifdef DHD_DEBUG
	dhd_console_t	console;		/* Console output polling support */
	uint		console_addr;		/* Console address from shared struct */
#endif /* DHD_DEBUG */

	uint		regfails;		/* Count of R_REG/W_REG failures */

	uint		clkstate;		/* State of sd and backplane clock(s) */
	bool		activity;		/* Activity flag for clock down */
	int32		idletime;		/* Control for activity timeout */
	int32		idlecount;		/* Activity timeout counter */
	int32		idleclock;		/* How to set bus driver when idle */
	int32		sd_divisor;		/* Speed control to bus driver */
	int32		sd_mode;		/* Mode control to bus driver */
	int32		sd_rxchain;		/* If bcmsdh api accepts PKT chains */
	bool		use_rxchain;		/* If dhd should use PKT chains */
	bool		sleeping;		/* Is SDIO bus sleeping? */
	bool		rxflow_mode;	/* Rx flow control mode */
	bool		rxflow;			/* Is rx flow control on */
	uint		prev_rxlim_hit;		/* Is prev rx limit exceeded (per dpc schedule) */
	bool		alp_only;		/* Don't use HT clock (ALP only) */
	/* Field to decide if rx of control frames happen in rxbuf or lb-pool */
	bool		usebufpool;

#ifdef SDTEST
	/* external loopback */
	bool		ext_loop;
	uint8		loopid;

	/* pktgen configuration */
	uint		pktgen_freq;		/* Ticks between bursts */
	uint		pktgen_count;		/* Packets to send each burst */
	uint		pktgen_print;		/* Bursts between count displays */
	uint		pktgen_total;		/* Stop after this many */
	uint		pktgen_minlen;		/* Minimum packet data len */
	uint		pktgen_maxlen;		/* Maximum packet data len */
	uint		pktgen_mode;		/* Configured mode: tx, rx, or echo */
	uint		pktgen_stop;		/* Number of tx failures causing stop */

	/* active pktgen fields */
	uint		pktgen_tick;		/* Tick counter for bursts */
	uint		pktgen_ptick;		/* Burst counter for printing */
	uint		pktgen_sent;		/* Number of test packets generated */
	uint		pktgen_rcvd;		/* Number of test packets received */
	uint		pktgen_fail;		/* Number of failed send attempts */
	uint16		pktgen_len;		/* Length of next packet to send */
#endif /* SDTEST */

	/* Some additional counters */
	uint		tx_sderrs;		/* Count of tx attempts with sd errors */
	uint		fcqueued;		/* Tx packets that got queued */
	uint		rxrtx;			/* Count of rtx requests (NAK to dongle) */
	uint		rx_toolong;		/* Receive frames too long to receive */
	uint		rxc_errors;		/* SDIO errors when reading control frames */
	uint		rx_hdrfail;		/* SDIO errors on header reads */
	uint		rx_badhdr;		/* Bad received headers (roosync?) */
	uint		rx_badseq;		/* Mismatched rx sequence number */
	uint		fc_rcvd;		/* Number of flow-control events received */
	uint		fc_xoff;		/* Number which turned on flow-control */
	uint		fc_xon;			/* Number which turned off flow-control */
	uint		rxglomfail;		/* Failed deglom attempts */
	uint		rxglomframes;		/* Number of glom frames (superframes) */
	uint		rxglompkts;		/* Number of packets from glom frames */
	uint		f2rxhdrs;		/* Number of header reads */
	uint		f2rxdata;		/* Number of frame data reads */
	uint		f2txdata;		/* Number of f2 frame writes */
	uint		f1regdata;		/* Number of f1 register accesses */

	uint8		*ctrl_frame_buf;
	uint32		ctrl_frame_len;
	bool		ctrl_frame_stat;
} dhd_bus_t;

/* clkstate */
#define CLK_NONE	0
#define CLK_SDONLY	1
#define CLK_PENDING	2	/* Not used yet */
#define CLK_AVAIL	3

#define DHD_NOPMU(dhd)	(FALSE)

#ifdef DHD_DEBUG
static int qcount[NUMPRIO];
static int tx_packets[NUMPRIO];
#endif /* DHD_DEBUG */

/* Deferred transmit */
const uint dhd_deferred_tx = 1;

extern uint dhd_watchdog_ms;
extern void dhd_os_wd_timer(void *bus, uint wdtick);

/* Tx/Rx bounds */
uint dhd_txbound;
uint dhd_rxbound;
uint dhd_txminmax;

/* override the RAM size if possible */
#define DONGLE_MIN_MEMSIZE (128 *1024)
int dhd_dongle_memsize;

static bool dhd_doflow;
static bool dhd_alignctl;

static bool sd1idle;

static bool retrydata;
#define RETRYCHAN(chan) (((chan) == SDPCM_EVENT_CHANNEL) || retrydata)

static const uint watermark = 8;
static const uint firstread = DHD_FIRSTREAD;

#define HDATLEN (firstread - (SDPCM_HDRLEN))

/* Retry count for register access failures */
static const uint retry_limit = 2;

/* Force even SD lengths (some host controllers mess up on odd bytes) */
static bool forcealign;

#define ALIGNMENT  4

#if defined(OOB_INTR_ONLY) && defined(HW_OOB)
extern void bcmsdh_enable_hw_oob_intr(void *sdh, bool enable);
#endif

#if defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD)
#error OOB_INTR_ONLY is NOT working with SDIO_ISR_THREAD
#endif /* defined(OOB_INTR_ONLY) && defined(SDIO_ISR_THREAD) */
#define PKTALIGN(osh, p, len, align)					\
	do {								\
		uint datalign;						\
		datalign = (uintptr)PKTDATA((osh), (p));		\
		datalign = ROUNDUP(datalign, (align)) - datalign;	\
		ASSERT(datalign < (align));				\
		ASSERT(PKTLEN((osh), (p)) >= ((len) + datalign));	\
		if (datalign)						\
			PKTPULL((osh), (p), datalign);			\
		PKTSETLEN((osh), (p), (len));				\
	} while (0)

/* Limit on rounding up frames */
static const uint max_roundup = 512;

/* Try doing readahead */
static bool dhd_readahead;


/* To check if there's window offered */
#define DATAOK(bus) \
	(((uint8)(bus->tx_max - bus->tx_seq) != 0) && \
	(((uint8)(bus->tx_max - bus->tx_seq) & 0x80) == 0))

/* Macros to get register read/write status */
/* NOTE: these assume a local dhdsdio_bus_t *bus! */
#define R_SDREG(regvar, regaddr, retryvar) \
do { \
	retryvar = 0; \
	do { \
		regvar = R_REG(bus->dhd->osh, regaddr); \
	} while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
	if (retryvar) { \
		bus->regfails += (retryvar-1); \
		if (retryvar > retry_limit) { \
			DHD_ERROR(("%s: FAILED" #regvar "READ, LINE %d\n", \
			           __FUNCTION__, __LINE__)); \
			regvar = 0; \
		} \
	} \
} while (0)

#define W_SDREG(regval, regaddr, retryvar) \
do { \
	retryvar = 0; \
	do { \
		W_REG(bus->dhd->osh, regaddr, regval); \
	} while (bcmsdh_regfail(bus->sdh) && (++retryvar <= retry_limit)); \
	if (retryvar) { \
		bus->regfails += (retryvar-1); \
		if (retryvar > retry_limit) \
			DHD_ERROR(("%s: FAILED REGISTER WRITE, LINE %d\n", \
			           __FUNCTION__, __LINE__)); \
	} \
} while (0)


#define DHD_BUS			SDIO_BUS

#define PKT_AVAILABLE()		(intstatus & I_HMB_FRAME_IND)

#define HOSTINTMASK		(I_HMB_SW_MASK | I_CHIPACTIVE)

#define GSPI_PR55150_BAILOUT


#ifdef SDTEST
static void dhdsdio_testrcv(dhd_bus_t *bus, void *pkt, uint seq);
static void dhdsdio_sdtest_set(dhd_bus_t *bus, bool start);
#endif

#ifdef DHD_DEBUG
static int dhdsdio_checkdied(dhd_bus_t *bus, uint8 *data, uint size);
static int dhdsdio_mem_dump(dhd_bus_t *bus);
#endif /* DHD_DEBUG  */
static int dhdsdio_download_state(dhd_bus_t *bus, bool enter);

static void dhdsdio_release(dhd_bus_t *bus, osl_t *osh);
static void dhdsdio_release_malloc(dhd_bus_t *bus, osl_t *osh);
static void dhdsdio_disconnect(void *ptr);
static bool dhdsdio_chipmatch(uint16 chipid);
static bool dhdsdio_probe_attach(dhd_bus_t *bus, osl_t *osh, void *sdh,
                                 void * regsva, uint16  devid);
static bool dhdsdio_probe_malloc(dhd_bus_t *bus, osl_t *osh, void *sdh);
static bool dhdsdio_probe_init(dhd_bus_t *bus, osl_t *osh, void *sdh);
static void dhdsdio_release_dongle(dhd_bus_t *bus, osl_t *osh);

static uint process_nvram_vars(char *varbuf, uint len);

static void dhd_dongle_setmemsize(struct dhd_bus *bus, int mem_size);
static int dhd_bcmsdh_recv_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags,
	uint8 *buf, uint nbytes,
	void *pkt, bcmsdh_cmplt_fn_t complete, void *handle);
static int dhd_bcmsdh_send_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags,
	uint8 *buf, uint nbytes,
	void *pkt, bcmsdh_cmplt_fn_t complete, void *handle);

static bool dhdsdio_download_firmware(struct dhd_bus *bus, osl_t *osh, void *sdh);
static int _dhdsdio_download_firmware(struct dhd_bus *bus);

static int dhdsdio_download_code_file(struct dhd_bus *bus, char *image_path);
static int dhdsdio_download_nvram(struct dhd_bus *bus);
#ifdef BCMEMBEDIMAGE
static int dhdsdio_download_code_array(struct dhd_bus *bus);
#endif


static void
dhd_dongle_setmemsize(struct dhd_bus *bus, int mem_size)
{
	int32 min_size =  DONGLE_MIN_MEMSIZE;
	/* Restrict the memsize to user specified limit */
	DHD_ERROR(("user: Restrict the dongle ram size to %d, min accepted %d\n",
		dhd_dongle_memsize, min_size));
	if ((dhd_dongle_memsize > min_size) &&
		(dhd_dongle_memsize < (int32)bus->orig_ramsize))
		bus->ramsize = dhd_dongle_memsize;
}

static int
dhdsdio_set_siaddr_window(dhd_bus_t *bus, uint32 address)
{
	int err = 0;
	bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW,
	                 (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err);
	if (!err)
		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRMID,
		                 (address >> 16) & SBSDIO_SBADDRMID_MASK, &err);
	if (!err)
		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRHIGH,
		                 (address >> 24) & SBSDIO_SBADDRHIGH_MASK, &err);
	return err;
}


/* Turn backplane clock on or off */
static int
dhdsdio_htclk(dhd_bus_t *bus, bool on, bool pendok)
{
	int err;
	uint8 clkctl, clkreq, devctl;
	bcmsdh_info_t *sdh;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#if defined(OOB_INTR_ONLY)
	pendok = FALSE;
#endif
	clkctl = 0;
	sdh = bus->sdh;


	if (on) {
		/* Request HT Avail */
		clkreq = bus->alp_only ? SBSDIO_ALP_AVAIL_REQ : SBSDIO_HT_AVAIL_REQ;

		if ((bus->sih->chip == BCM4329_CHIP_ID) && (bus->sih->chiprev == 0))
			clkreq |= SBSDIO_FORCE_ALP;




		bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, clkreq, &err);
		if (err) {
			DHD_ERROR(("%s: HT Avail request error: %d\n", __FUNCTION__, err));
			return BCME_ERROR;
		}

		if (pendok &&
		    ((bus->sih->buscoretype == PCMCIA_CORE_ID) && (bus->sih->buscorerev == 9))) {
			uint32 dummy, retries;
			R_SDREG(dummy, &bus->regs->clockctlstatus, retries);
		}

		/* Check current status */
		clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
		if (err) {
			DHD_ERROR(("%s: HT Avail read error: %d\n", __FUNCTION__, err));
			return BCME_ERROR;
		}

		/* Go to pending and await interrupt if appropriate */
		if (!SBSDIO_CLKAV(clkctl, bus->alp_only) && pendok) {
			/* Allow only clock-available interrupt */
			devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
			if (err) {
				DHD_ERROR(("%s: Devctl access error setting CA: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}

			devctl |= SBSDIO_DEVCTL_CA_INT_ONLY;
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
			DHD_INFO(("CLKCTL: set PENDING\n"));
			bus->clkstate = CLK_PENDING;

			return BCME_OK;
		} else if (bus->clkstate == CLK_PENDING) {
			/* Cancel CA-only interrupt filter */
			devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
			devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
		}

		/* Otherwise, wait here (polling) for HT Avail */
		if (!SBSDIO_CLKAV(clkctl, bus->alp_only)) {
			SPINWAIT_SLEEP(sdioh_spinwait_sleep,
				((clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
			                                    SBSDIO_FUNC1_CHIPCLKCSR, &err)),
			          !SBSDIO_CLKAV(clkctl, bus->alp_only)), PMU_MAX_TRANSITION_DLY);
		}
		if (err) {
			DHD_ERROR(("%s: HT Avail request error: %d\n", __FUNCTION__, err));
			return BCME_ERROR;
		}
		if (!SBSDIO_CLKAV(clkctl, bus->alp_only)) {
			DHD_ERROR(("%s: HT Avail timeout (%d): clkctl 0x%02x\n",
			           __FUNCTION__, PMU_MAX_TRANSITION_DLY, clkctl));
			return BCME_ERROR;
		}


		/* Mark clock available */
		bus->clkstate = CLK_AVAIL;
		DHD_INFO(("CLKCTL: turned ON\n"));

#if defined(DHD_DEBUG)
		if (bus->alp_only == TRUE) {
#if !defined(BCMLXSDMMC)
			if (!SBSDIO_ALPONLY(clkctl)) {
				DHD_ERROR(("%s: HT Clock, when ALP Only\n", __FUNCTION__));
			}
#endif /* !defined(BCMLXSDMMC) */
		} else {
			if (SBSDIO_ALPONLY(clkctl)) {
				DHD_ERROR(("%s: HT Clock should be on.\n", __FUNCTION__));
			}
		}
#endif /* defined (DHD_DEBUG) */

		bus->activity = TRUE;
	} else {
		clkreq = 0;

		if (bus->clkstate == CLK_PENDING) {
			/* Cancel CA-only interrupt filter */
			devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
			devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
		}

		bus->clkstate = CLK_SDONLY;
		bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, clkreq, &err);
		DHD_INFO(("CLKCTL: turned OFF\n"));
		if (err) {
			DHD_ERROR(("%s: Failed access turning clock off: %d\n",
			           __FUNCTION__, err));
			return BCME_ERROR;
		}
	}
	return BCME_OK;
}

/* Change idle/active SD state */
static int
dhdsdio_sdclk(dhd_bus_t *bus, bool on)
{
	int err;
	int32 iovalue;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (on) {
		if (bus->idleclock == DHD_IDLE_STOP) {
			/* Turn on clock and restore mode */
			iovalue = 1;
			err = bcmsdh_iovar_op(bus->sdh, "sd_clock", NULL, 0,
			                      &iovalue, sizeof(iovalue), TRUE);
			if (err) {
				DHD_ERROR(("%s: error enabling sd_clock: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}

			iovalue = bus->sd_mode;
			err = bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
			                      &iovalue, sizeof(iovalue), TRUE);
			if (err) {
				DHD_ERROR(("%s: error changing sd_mode: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}
		} else if (bus->idleclock != DHD_IDLE_ACTIVE) {
			/* Restore clock speed */
			iovalue = bus->sd_divisor;
			err = bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
			                      &iovalue, sizeof(iovalue), TRUE);
			if (err) {
				DHD_ERROR(("%s: error restoring sd_divisor: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}
		}
		bus->clkstate = CLK_SDONLY;
	} else {
		/* Stop or slow the SD clock itself */
		if ((bus->sd_divisor == -1) || (bus->sd_mode == -1)) {
			DHD_TRACE(("%s: can't idle clock, divisor %d mode %d\n",
			           __FUNCTION__, bus->sd_divisor, bus->sd_mode));
			return BCME_ERROR;
		}
		if (bus->idleclock == DHD_IDLE_STOP) {
			if (sd1idle) {
				/* Change to SD1 mode and turn off clock */
				iovalue = 1;
				err = bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
				                      &iovalue, sizeof(iovalue), TRUE);
				if (err) {
					DHD_ERROR(("%s: error changing sd_clock: %d\n",
					           __FUNCTION__, err));
					return BCME_ERROR;
				}
			}

			iovalue = 0;
			err = bcmsdh_iovar_op(bus->sdh, "sd_clock", NULL, 0,
			                      &iovalue, sizeof(iovalue), TRUE);
			if (err) {
				DHD_ERROR(("%s: error disabling sd_clock: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}
		} else if (bus->idleclock != DHD_IDLE_ACTIVE) {
			/* Set divisor to idle value */
			iovalue = bus->idleclock;
			err = bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
			                      &iovalue, sizeof(iovalue), TRUE);
			if (err) {
				DHD_ERROR(("%s: error changing sd_divisor: %d\n",
				           __FUNCTION__, err));
				return BCME_ERROR;
			}
		}
		bus->clkstate = CLK_NONE;
	}

	return BCME_OK;
}

/* Transition SD and backplane clock readiness */
static int
dhdsdio_clkctl(dhd_bus_t *bus, uint target, bool pendok)
{
	int ret = BCME_OK;
#ifdef DHD_DEBUG
	uint oldstate = bus->clkstate;
#endif /* DHD_DEBUG */

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Early exit if we're already there */
	if (bus->clkstate == target) {
		if (target == CLK_AVAIL) {
			dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
			bus->activity = TRUE;
		}
		return ret;
	}

	switch (target) {
	case CLK_AVAIL:
		/* Make sure SD clock is available */
		if (bus->clkstate == CLK_NONE)
			dhdsdio_sdclk(bus, TRUE);
		/* Now request HT Avail on the backplane */
		ret = dhdsdio_htclk(bus, TRUE, pendok);
		if (ret == BCME_OK) {
			dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
			bus->activity = TRUE;
		}
		break;

	case CLK_SDONLY:
		/* Remove HT request, or bring up SD clock */
		if (bus->clkstate == CLK_NONE)
			ret = dhdsdio_sdclk(bus, TRUE);
		else if (bus->clkstate == CLK_AVAIL)
			ret = dhdsdio_htclk(bus, FALSE, FALSE);
		else
			DHD_ERROR(("dhdsdio_clkctl: request for %d -> %d\n",
			           bus->clkstate, target));
		if (ret == BCME_OK)
		dhd_os_wd_timer(bus->dhd, dhd_watchdog_ms);
		break;

	case CLK_NONE:
		/* Make sure to remove HT request */
		if (bus->clkstate == CLK_AVAIL)
			ret = dhdsdio_htclk(bus, FALSE, FALSE);
		/* Now remove the SD clock */
		ret = dhdsdio_sdclk(bus, FALSE);
		dhd_os_wd_timer(bus->dhd, 0);
		break;
	}
#ifdef DHD_DEBUG
	DHD_INFO(("dhdsdio_clkctl: %d -> %d\n", oldstate, bus->clkstate));
#endif /* DHD_DEBUG */

	return ret;
}

int
dhdsdio_bussleep(dhd_bus_t *bus, bool sleep)
{
	bcmsdh_info_t *sdh = bus->sdh;
	sdpcmd_regs_t *regs = bus->regs;
	uint retries = 0;

	DHD_INFO(("dhdsdio_bussleep: request %s (currently %s)\n",
	          (sleep ? "SLEEP" : "WAKE"),
	          (bus->sleeping ? "SLEEP" : "WAKE")));

	/* Done if we're already in the requested state */
	if (sleep == bus->sleeping)
		return BCME_OK;

	/* Going to sleep: set the alarm and turn off the lights... */
	if (sleep) {
		/* Don't sleep if something is pending */
		if (bus->dpc_sched || bus->rxskip || pktq_len(&bus->txq))
			return BCME_BUSY;


		/* Disable SDIO interrupts (no longer interested) */
		bcmsdh_intr_disable(bus->sdh);

		/* Make sure the controller has the bus up */
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

		/* Tell device to start using OOB wakeup */
		W_SDREG(SMB_USE_OOB, &regs->tosbmailbox, retries);
		if (retries > retry_limit)
			DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));

		/* Turn off our contribution to the HT clock request */
		dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);

		bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
		                 SBSDIO_FORCE_HW_CLKREQ_OFF, NULL);

		/* Isolate the bus */
		if (bus->sih->chip != BCM4329_CHIP_ID && bus->sih->chip != BCM4319_CHIP_ID) {
				bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL,
					SBSDIO_DEVCTL_PADS_ISO, NULL);
		}

		/* Change state */
		bus->sleeping = TRUE;

	} else {
		/* Waking up: bus power up is ok, set local state */

		bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
		                 0, NULL);

		/* Force pad isolation off if possible (in case power never toggled) */
		if ((bus->sih->buscoretype == PCMCIA_CORE_ID) && (bus->sih->buscorerev >= 10))
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, 0, NULL);


		/* Make sure the controller has the bus up */
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

		/* Send misc interrupt to indicate OOB not needed */
		W_SDREG(0, &regs->tosbmailboxdata, retries);
		if (retries <= retry_limit)
			W_SDREG(SMB_DEV_INT, &regs->tosbmailbox, retries);

		if (retries > retry_limit)
			DHD_ERROR(("CANNOT SIGNAL CHIP TO CLEAR OOB!!\n"));

		/* Make sure we have SD bus access */
		dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);

		/* Change state */
		bus->sleeping = FALSE;

		/* Enable interrupts again */
		if (bus->intr && (bus->dhd->busstate == DHD_BUS_DATA)) {
			bus->intdis = FALSE;
			bcmsdh_intr_enable(bus->sdh);
		}
	}

	return BCME_OK;
}
#if defined(OOB_INTR_ONLY)
void
dhd_enable_oob_intr(struct dhd_bus *bus, bool enable)
{
#if defined(HW_OOB)
	bcmsdh_enable_hw_oob_intr(bus->sdh, enable);
#else
	sdpcmd_regs_t *regs = bus->regs;
	uint retries = 0;

	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
	if (enable == TRUE) {

		/* Tell device to start using OOB wakeup */
		W_SDREG(SMB_USE_OOB, &regs->tosbmailbox, retries);
		if (retries > retry_limit)
			DHD_ERROR(("CANNOT SIGNAL CHIP, WILL NOT WAKE UP!!\n"));

	} else {
		/* Send misc interrupt to indicate OOB not needed */
		W_SDREG(0, &regs->tosbmailboxdata, retries);
		if (retries <= retry_limit)
			W_SDREG(SMB_DEV_INT, &regs->tosbmailbox, retries);
	}

	/* Turn off our contribution to the HT clock request */
	dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);
#endif /* !defined(HW_OOB) */
}
#endif /* defined(OOB_INTR_ONLY) */

#define BUS_WAKE(bus) \
	do { \
		if ((bus)->sleeping) \
			dhdsdio_bussleep((bus), FALSE); \
	} while (0);


/* Writes a HW/SW header into the packet and sends it. */
/* Assumes: (a) header space already there, (b) caller holds lock */
static int
dhdsdio_txpkt(dhd_bus_t *bus, void *pkt, uint chan, bool free_pkt)
{
	int ret;
	osl_t *osh;
	uint8 *frame;
	uint16 len, pad = 0;
	uint32 swheader;
	uint retries = 0;
	bcmsdh_info_t *sdh;
	void *new;
	int i;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	sdh = bus->sdh;
	osh = bus->dhd->osh;

	if (bus->dhd->dongle_reset) {
		ret = BCME_NOTREADY;
		goto done;
	}

	frame = (uint8*)PKTDATA(osh, pkt);

	/* Add alignment padding, allocate new packet if needed */
	if ((pad = ((uintptr)frame % DHD_SDALIGN))) {
		if (PKTHEADROOM(osh, pkt) < pad) {
			DHD_INFO(("%s: insufficient headroom %d for %d pad\n",
			          __FUNCTION__, (int)PKTHEADROOM(osh, pkt), pad));
			bus->dhd->tx_realloc++;
			new = PKTGET(osh, (PKTLEN(osh, pkt) + DHD_SDALIGN), TRUE);
			if (!new) {
				DHD_ERROR(("%s: couldn't allocate new %d-byte packet\n",
				           __FUNCTION__, PKTLEN(osh, pkt) + DHD_SDALIGN));
				ret = BCME_NOMEM;
				goto done;
			}

			PKTALIGN(osh, new, PKTLEN(osh, pkt), DHD_SDALIGN);
			bcopy(PKTDATA(osh, pkt), PKTDATA(osh, new), PKTLEN(osh, pkt));
			if (free_pkt)
				PKTFREE(osh, pkt, TRUE);
			/* free the pkt if canned one is not used */
			free_pkt = TRUE;
			pkt = new;
			frame = (uint8*)PKTDATA(osh, pkt);
			ASSERT(((uintptr)frame % DHD_SDALIGN) == 0);
			pad = 0;
		} else {
			PKTPUSH(osh, pkt, pad);
			frame = (uint8*)PKTDATA(osh, pkt);

			ASSERT((pad + SDPCM_HDRLEN) <= (int) PKTLEN(osh, pkt));
			bzero(frame, pad + SDPCM_HDRLEN);
		}
	}
	ASSERT(pad < DHD_SDALIGN);

	/* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
	len = (uint16)PKTLEN(osh, pkt);
	*(uint16*)frame = htol16(len);
	*(((uint16*)frame) + 1) = htol16(~len);

	/* Software tag: channel, sequence number, data offset */
	swheader = ((chan << SDPCM_CHANNEL_SHIFT) & SDPCM_CHANNEL_MASK) | bus->tx_seq |
	        (((pad + SDPCM_HDRLEN) << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
	htol32_ua_store(swheader, frame + SDPCM_FRAMETAG_LEN);
	htol32_ua_store(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));

#ifdef DHD_DEBUG
	tx_packets[PKTPRIO(pkt)]++;
	if (DHD_BYTES_ON() &&
	    (((DHD_CTL_ON() && (chan == SDPCM_CONTROL_CHANNEL)) ||
	      (DHD_DATA_ON() && (chan != SDPCM_CONTROL_CHANNEL))))) {
		prhex("Tx Frame", frame, len);
	} else if (DHD_HDRS_ON()) {
		prhex("TxHdr", frame, MIN(len, 16));
	}
#endif

	/* Raise len to next SDIO block to eliminate tail command */
	if (bus->roundup && bus->blocksize && (len > bus->blocksize)) {
		uint16 pad = bus->blocksize - (len % bus->blocksize);
		if ((pad <= bus->roundup) && (pad < bus->blocksize))
#ifdef NOTUSED
			if (pad <= PKTTAILROOM(osh, pkt))
#endif /* NOTUSED */
				len += pad;
	} else if (len % DHD_SDALIGN) {
		len += DHD_SDALIGN - (len % DHD_SDALIGN);
	}

	/* Some controllers have trouble with odd bytes -- round to even */
	if (forcealign && (len & (ALIGNMENT - 1))) {
#ifdef NOTUSED
		if (PKTTAILROOM(osh, pkt))
#endif
			len = ROUNDUP(len, ALIGNMENT);
#ifdef NOTUSED
		else
			DHD_ERROR(("%s: sending unrounded %d-byte packet\n", __FUNCTION__, len));
#endif
	}

	do {
		ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
		                      frame, len, pkt, NULL, NULL);
		bus->f2txdata++;
		ASSERT(ret != BCME_PENDING);

		if (ret < 0) {
			/* On failure, abort the command and terminate the frame */
			DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
			          __FUNCTION__, ret));
			bus->tx_sderrs++;

			bcmsdh_abort(sdh, SDIO_FUNC_2);
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
			                 SFC_WF_TERM, NULL);
			bus->f1regdata++;

			for (i = 0; i < 3; i++) {
				uint8 hi, lo;
				hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
				                     SBSDIO_FUNC1_WFRAMEBCHI, NULL);
				lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
				                     SBSDIO_FUNC1_WFRAMEBCLO, NULL);
				bus->f1regdata += 2;
				if ((hi == 0) && (lo == 0))
					break;
			}

		}
		if (ret == 0) {
			bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
		}
	} while ((ret < 0) && retrydata && retries++ < TXRETRIES);

done:
	/* restore pkt buffer pointer before calling tx complete routine */
	PKTPULL(osh, pkt, SDPCM_HDRLEN + pad);
	dhd_os_sdunlock(bus->dhd);
	dhd_txcomplete(bus->dhd, pkt, ret != 0);
	dhd_os_sdlock(bus->dhd);

	if (free_pkt)
		PKTFREE(osh, pkt, TRUE);

	return ret;
}

int
dhd_bus_txdata(struct dhd_bus *bus, void *pkt)
{
	int ret = BCME_ERROR;
	osl_t *osh;
	uint datalen, prec;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	osh = bus->dhd->osh;
	datalen = PKTLEN(osh, pkt);

#ifdef SDTEST
	/* Push the test header if doing loopback */
	if (bus->ext_loop) {
		uint8* data;
		PKTPUSH(osh, pkt, SDPCM_TEST_HDRLEN);
		data = PKTDATA(osh, pkt);
		*data++ = SDPCM_TEST_ECHOREQ;
		*data++ = (uint8)bus->loopid++;
		*data++ = (datalen >> 0);
		*data++ = (datalen >> 8);
		datalen += SDPCM_TEST_HDRLEN;
	}
#endif /* SDTEST */

	/* Add space for the header */
	PKTPUSH(osh, pkt, SDPCM_HDRLEN);
	ASSERT(ISALIGNED((uintptr)PKTDATA(osh, pkt), 2));

	prec = PRIO2PREC((PKTPRIO(pkt) & PRIOMASK));


	/* Check for existing queue, current flow-control, pending event, or pending clock */
	if (dhd_deferred_tx || bus->fcstate || pktq_len(&bus->txq) || bus->dpc_sched ||
	    (!DATAOK(bus)) || (bus->flowcontrol & NBITVAL(prec)) ||
	    (bus->clkstate != CLK_AVAIL)) {
		DHD_TRACE(("%s: deferring pktq len %d\n", __FUNCTION__,
			pktq_len(&bus->txq)));
		bus->fcqueued++;

		/* Priority based enq */
		dhd_os_sdlock_txq(bus->dhd);
		if (dhd_prec_enq(bus->dhd, &bus->txq, pkt, prec) == FALSE) {
			PKTPULL(osh, pkt, SDPCM_HDRLEN);
			dhd_txcomplete(bus->dhd, pkt, FALSE);
			PKTFREE(osh, pkt, TRUE);
			DHD_ERROR(("%s: out of bus->txq !!!\n", __FUNCTION__));
			ret = BCME_NORESOURCE;
		} else {
			ret = BCME_OK;
		}
		dhd_os_sdunlock_txq(bus->dhd);

		if ((pktq_len(&bus->txq) >= FCHI) && dhd_doflow)
			dhd_txflowcontrol(bus->dhd, 0, ON);

#ifdef DHD_DEBUG
		if (pktq_plen(&bus->txq, prec) > qcount[prec])
			qcount[prec] = pktq_plen(&bus->txq, prec);
#endif
		/* Schedule DPC if needed to send queued packet(s) */
		if (dhd_deferred_tx && !bus->dpc_sched) {
			bus->dpc_sched = TRUE;
			dhd_sched_dpc(bus->dhd);
		}
	} else {
		/* Lock: we're about to use shared data/code (and SDIO) */
		dhd_os_sdlock(bus->dhd);

		/* Otherwise, send it now */
		BUS_WAKE(bus);
		/* Make sure back plane ht clk is on, no pending allowed */
		dhdsdio_clkctl(bus, CLK_AVAIL, TRUE);

#ifndef SDTEST
		DHD_TRACE(("%s: calling txpkt\n", __FUNCTION__));
		ret = dhdsdio_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, TRUE);
#else
		ret = dhdsdio_txpkt(bus, pkt,
		        (bus->ext_loop ? SDPCM_TEST_CHANNEL : SDPCM_DATA_CHANNEL), TRUE);
#endif
		if (ret)
			bus->dhd->tx_errors++;
		else
			bus->dhd->dstats.tx_bytes += datalen;

		if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
			bus->activity = FALSE;
			dhdsdio_clkctl(bus, CLK_NONE, TRUE);
		}

		dhd_os_sdunlock(bus->dhd);
	}


	return ret;
}

static uint
dhdsdio_sendfromq(dhd_bus_t *bus, uint maxframes)
{
	void *pkt;
	uint32 intstatus = 0;
	uint retries = 0;
	int ret = 0, prec_out;
	uint cnt = 0;
	uint datalen;
	uint8 tx_prec_map;

	dhd_pub_t *dhd = bus->dhd;
	sdpcmd_regs_t *regs = bus->regs;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	tx_prec_map = ~bus->flowcontrol;

	/* Send frames until the limit or some other event */
	for (cnt = 0; (cnt < maxframes) && DATAOK(bus); cnt++) {
		dhd_os_sdlock_txq(bus->dhd);
		if ((pkt = pktq_mdeq(&bus->txq, tx_prec_map, &prec_out)) == NULL) {
			dhd_os_sdunlock_txq(bus->dhd);
			break;
		}
		dhd_os_sdunlock_txq(bus->dhd);
		datalen = PKTLEN(bus->dhd->osh, pkt) - SDPCM_HDRLEN;

#ifndef SDTEST
		ret = dhdsdio_txpkt(bus, pkt, SDPCM_DATA_CHANNEL, TRUE);
#else
		ret = dhdsdio_txpkt(bus, pkt,
		        (bus->ext_loop ? SDPCM_TEST_CHANNEL : SDPCM_DATA_CHANNEL), TRUE);
#endif
		if (ret)
			bus->dhd->tx_errors++;
		else
			bus->dhd->dstats.tx_bytes += datalen;

		/* In poll mode, need to check for other events */
		if (!bus->intr && cnt)
		{
			/* Check device status, signal pending interrupt */
			R_SDREG(intstatus, &regs->intstatus, retries);
			bus->f2txdata++;
			if (bcmsdh_regfail(bus->sdh))
				break;
			if (intstatus & bus->hostintmask)
				bus->ipend = TRUE;
		}
	}

	/* Deflow-control stack if needed */
	if (dhd_doflow && dhd->up && (dhd->busstate == DHD_BUS_DATA) &&
	    dhd->txoff && (pktq_len(&bus->txq) < FCLOW))
		dhd_txflowcontrol(dhd, 0, OFF);

	return cnt;
}

int
dhd_bus_txctl(struct dhd_bus *bus, uchar *msg, uint msglen)
{
	uint8 *frame;
	uint16 len;
	uint32 swheader;
	uint retries = 0;
	bcmsdh_info_t *sdh = bus->sdh;
	uint8 doff = 0;
	int ret = -1;
	int i;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus->dhd->dongle_reset)
		return -EIO;

	/* Back the pointer to make a room for bus header */
	frame = msg - SDPCM_HDRLEN;
	len = (msglen += SDPCM_HDRLEN);

	/* Add alignment padding (optional for ctl frames) */
	if (dhd_alignctl) {
		if ((doff = ((uintptr)frame % DHD_SDALIGN))) {
			frame -= doff;
			len += doff;
			msglen += doff;
			bzero(frame, doff + SDPCM_HDRLEN);
		}
		ASSERT(doff < DHD_SDALIGN);
	}
	doff += SDPCM_HDRLEN;

	/* Round send length to next SDIO block */
	if (bus->roundup && bus->blocksize && (len > bus->blocksize)) {
		uint16 pad = bus->blocksize - (len % bus->blocksize);
		if ((pad <= bus->roundup) && (pad < bus->blocksize))
			len += pad;
	} else if (len % DHD_SDALIGN) {
		len += DHD_SDALIGN - (len % DHD_SDALIGN);
	}

	/* Satisfy length-alignment requirements */
	if (forcealign && (len & (ALIGNMENT - 1)))
		len = ROUNDUP(len, ALIGNMENT);

	ASSERT(ISALIGNED((uintptr)frame, 2));


	/* Need to lock here to protect txseq and SDIO tx calls */
	dhd_os_sdlock(bus->dhd);

	BUS_WAKE(bus);

	/* Make sure backplane clock is on */
	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

	/* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */
	*(uint16*)frame = htol16((uint16)msglen);
	*(((uint16*)frame) + 1) = htol16(~msglen);

	/* Software tag: channel, sequence number, data offset */
	swheader = ((SDPCM_CONTROL_CHANNEL << SDPCM_CHANNEL_SHIFT) & SDPCM_CHANNEL_MASK)
	        | bus->tx_seq | ((doff << SDPCM_DOFFSET_SHIFT) & SDPCM_DOFFSET_MASK);
	htol32_ua_store(swheader, frame + SDPCM_FRAMETAG_LEN);
	htol32_ua_store(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader));

	if (!DATAOK(bus)) {
		DHD_INFO(("%s: No bus credit bus->tx_max %d, bus->tx_seq %d\n",
			__FUNCTION__, bus->tx_max, bus->tx_seq));
		bus->ctrl_frame_stat = TRUE;
		/* Send from dpc */
		bus->ctrl_frame_buf = frame;
		bus->ctrl_frame_len = len;

		dhd_wait_for_event(bus->dhd, &bus->ctrl_frame_stat);

		if (bus->ctrl_frame_stat == FALSE) {
			DHD_INFO(("%s: ctrl_frame_stat == FALSE\n", __FUNCTION__));
			ret = 0;
		} else {
			DHD_INFO(("%s: ctrl_frame_stat == TRUE\n", __FUNCTION__));
			ret = -1;
		}
	}

	if (ret == -1) {
#ifdef DHD_DEBUG
		if (DHD_BYTES_ON() && DHD_CTL_ON()) {
			prhex("Tx Frame", frame, len);
		} else if (DHD_HDRS_ON()) {
			prhex("TxHdr", frame, MIN(len, 16));
		}
#endif

		do {
			bus->ctrl_frame_stat = FALSE;
			ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
			                          frame, len, NULL, NULL, NULL);

			ASSERT(ret != BCME_PENDING);

			if (ret < 0) {
				/* On failure, abort the command and terminate the frame */
				DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
				          __FUNCTION__, ret));
				bus->tx_sderrs++;

				bcmsdh_abort(sdh, SDIO_FUNC_2);

				bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
				                 SFC_WF_TERM, NULL);
				bus->f1regdata++;

				for (i = 0; i < 3; i++) {
					uint8 hi, lo;
					hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
					                     SBSDIO_FUNC1_WFRAMEBCHI, NULL);
					lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
					                     SBSDIO_FUNC1_WFRAMEBCLO, NULL);
					bus->f1regdata += 2;
					if ((hi == 0) && (lo == 0))
						break;
				}

			}
			if (ret == 0) {
				bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
			}
		} while ((ret < 0) && retries++ < TXRETRIES);
	}

	if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
		bus->activity = FALSE;
		dhdsdio_clkctl(bus, CLK_NONE, TRUE);
	}

	dhd_os_sdunlock(bus->dhd);

	if (ret)
		bus->dhd->tx_ctlerrs++;
	else
		bus->dhd->tx_ctlpkts++;

	return ret ? -EIO : 0;
}

int
dhd_bus_rxctl(struct dhd_bus *bus, uchar *msg, uint msglen)
{
	int timeleft;
	uint rxlen = 0;
	bool pending;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus->dhd->dongle_reset)
		return -EIO;

	/* Wait until control frame is available */
	timeleft = dhd_os_ioctl_resp_wait(bus->dhd, &bus->rxlen, &pending);

	dhd_os_sdlock(bus->dhd);
	rxlen = bus->rxlen;
	bcopy(bus->rxctl, msg, MIN(msglen, rxlen));
	bus->rxlen = 0;
	dhd_os_sdunlock(bus->dhd);

	if (rxlen) {
		DHD_CTL(("%s: resumed on rxctl frame, got %d expected %d\n",
		         __FUNCTION__, rxlen, msglen));
	} else if (timeleft == 0) {
		DHD_ERROR(("%s: resumed on timeout\n", __FUNCTION__));
#ifdef DHD_DEBUG
		dhd_os_sdlock(bus->dhd);
		dhdsdio_checkdied(bus, NULL, 0);
		dhd_os_sdunlock(bus->dhd);
#endif /* DHD_DEBUG */
	} else if (pending == TRUE) {
		DHD_CTL(("%s: cancelled\n", __FUNCTION__));
		return -ERESTARTSYS;
	} else {
		DHD_CTL(("%s: resumed for unknown reason?\n", __FUNCTION__));
#ifdef DHD_DEBUG
		dhd_os_sdlock(bus->dhd);
		dhdsdio_checkdied(bus, NULL, 0);
		dhd_os_sdunlock(bus->dhd);
#endif /* DHD_DEBUG */
	}

	if (rxlen)
		bus->dhd->rx_ctlpkts++;
	else
		bus->dhd->rx_ctlerrs++;

	return rxlen ? (int)rxlen : -ETIMEDOUT;
}

/* IOVar table */
enum {
	IOV_INTR = 1,
	IOV_POLLRATE,
	IOV_SDREG,
	IOV_SBREG,
	IOV_SDCIS,
	IOV_MEMBYTES,
	IOV_MEMSIZE,
#ifdef DHD_DEBUG
	IOV_CHECKDIED,
#endif
	IOV_DOWNLOAD,
	IOV_FORCEEVEN,
	IOV_SDIOD_DRIVE,
	IOV_READAHEAD,
	IOV_SDRXCHAIN,
	IOV_ALIGNCTL,
	IOV_SDALIGN,
	IOV_DEVRESET,
	IOV_CPU,
#ifdef SDTEST
	IOV_PKTGEN,
	IOV_EXTLOOP,
#endif /* SDTEST */
	IOV_SPROM,
	IOV_TXBOUND,
	IOV_RXBOUND,
	IOV_TXMINMAX,
	IOV_IDLETIME,
	IOV_IDLECLOCK,
	IOV_SD1IDLE,
	IOV_SLEEP,
	IOV_VARS
};

const bcm_iovar_t dhdsdio_iovars[] = {
	{"intr",	IOV_INTR,	0,	IOVT_BOOL,	0 },
	{"sleep",	IOV_SLEEP,	0,	IOVT_BOOL,	0 },
	{"pollrate",	IOV_POLLRATE,	0,	IOVT_UINT32,	0 },
	{"idletime",	IOV_IDLETIME,	0,	IOVT_INT32,	0 },
	{"idleclock",	IOV_IDLECLOCK,	0,	IOVT_INT32,	0 },
	{"sd1idle",	IOV_SD1IDLE,	0,	IOVT_BOOL,	0 },
	{"membytes",	IOV_MEMBYTES,	0,	IOVT_BUFFER,	2 * sizeof(int) },
	{"memsize",	IOV_MEMSIZE,	0,	IOVT_UINT32,	0 },
	{"download",	IOV_DOWNLOAD,	0,	IOVT_BOOL,	0 },
	{"vars",	IOV_VARS,	0,	IOVT_BUFFER,	0 },
	{"sdiod_drive",	IOV_SDIOD_DRIVE, 0,	IOVT_UINT32,	0 },
	{"readahead",	IOV_READAHEAD,	0,	IOVT_BOOL,	0 },
	{"sdrxchain",	IOV_SDRXCHAIN,	0,	IOVT_BOOL,	0 },
	{"alignctl",	IOV_ALIGNCTL,	0,	IOVT_BOOL,	0 },
	{"sdalign",	IOV_SDALIGN,	0,	IOVT_BOOL,	0 },
	{"devreset",	IOV_DEVRESET,	0,	IOVT_BOOL,	0 },
#ifdef DHD_DEBUG
	{"sdreg",	IOV_SDREG,	0,	IOVT_BUFFER,	sizeof(sdreg_t) },
	{"sbreg",	IOV_SBREG,	0,	IOVT_BUFFER,	sizeof(sdreg_t) },
	{"sd_cis",	IOV_SDCIS,	0,	IOVT_BUFFER,	DHD_IOCTL_MAXLEN },
	{"forcealign",	IOV_FORCEEVEN,	0,	IOVT_BOOL,	0 },
	{"txbound",	IOV_TXBOUND,	0,	IOVT_UINT32,	0 },
	{"rxbound",	IOV_RXBOUND,	0,	IOVT_UINT32,	0 },
	{"txminmax", IOV_TXMINMAX,	0,	IOVT_UINT32,	0 },
	{"cpu",		IOV_CPU,	0,	IOVT_BOOL,	0 },
#ifdef DHD_DEBUG
	{"checkdied",	IOV_CHECKDIED,	0,	IOVT_BUFFER,	0 },
#endif /* DHD_DEBUG  */
#endif /* DHD_DEBUG */
#ifdef SDTEST
	{"extloop",	IOV_EXTLOOP,	0,	IOVT_BOOL,	0 },
	{"pktgen",	IOV_PKTGEN,	0,	IOVT_BUFFER,	sizeof(dhd_pktgen_t) },
#endif /* SDTEST */

	{NULL, 0, 0, 0, 0 }
};

static void
dhd_dump_pct(struct bcmstrbuf *strbuf, char *desc, uint num, uint div)
{
	uint q1, q2;

	if (!div) {
		bcm_bprintf(strbuf, "%s N/A", desc);
	} else {
		q1 = num / div;
		q2 = (100 * (num - (q1 * div))) / div;
		bcm_bprintf(strbuf, "%s %d.%02d", desc, q1, q2);
	}
}

void
dhd_bus_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
{
	dhd_bus_t *bus = dhdp->bus;

	bcm_bprintf(strbuf, "Bus SDIO structure:\n");
	bcm_bprintf(strbuf, "hostintmask 0x%08x intstatus 0x%08x sdpcm_ver %d\n",
	            bus->hostintmask, bus->intstatus, bus->sdpcm_ver);
	bcm_bprintf(strbuf, "fcstate %d qlen %d tx_seq %d, max %d, rxskip %d rxlen %d rx_seq %d\n",
	            bus->fcstate, pktq_len(&bus->txq), bus->tx_seq, bus->tx_max, bus->rxskip,
	            bus->rxlen, bus->rx_seq);
	bcm_bprintf(strbuf, "intr %d intrcount %d lastintrs %d spurious %d\n",
	            bus->intr, bus->intrcount, bus->lastintrs, bus->spurious);
	bcm_bprintf(strbuf, "pollrate %d pollcnt %d regfails %d\n",
	            bus->pollrate, bus->pollcnt, bus->regfails);

	bcm_bprintf(strbuf, "\nAdditional counters:\n");
	bcm_bprintf(strbuf, "tx_sderrs %d fcqueued %d rxrtx %d rx_toolong %d rxc_errors %d\n",
	            bus->tx_sderrs, bus->fcqueued, bus->rxrtx, bus->rx_toolong,
	            bus->rxc_errors);
	bcm_bprintf(strbuf, "rx_hdrfail %d badhdr %d badseq %d\n",
	            bus->rx_hdrfail, bus->rx_badhdr, bus->rx_badseq);
	bcm_bprintf(strbuf, "fc_rcvd %d, fc_xoff %d, fc_xon %d\n",
	            bus->fc_rcvd, bus->fc_xoff, bus->fc_xon);
	bcm_bprintf(strbuf, "rxglomfail %d, rxglomframes %d, rxglompkts %d\n",
	            bus->rxglomfail, bus->rxglomframes, bus->rxglompkts);
	bcm_bprintf(strbuf, "f2rx (hdrs/data) %d (%d/%d), f2tx %d f1regs %d\n",
	            (bus->f2rxhdrs + bus->f2rxdata), bus->f2rxhdrs, bus->f2rxdata,
	            bus->f2txdata, bus->f1regdata);
	{
		dhd_dump_pct(strbuf, "\nRx: pkts/f2rd", bus->dhd->rx_packets,
		             (bus->f2rxhdrs + bus->f2rxdata));
		dhd_dump_pct(strbuf, ", pkts/f1sd", bus->dhd->rx_packets, bus->f1regdata);
		dhd_dump_pct(strbuf, ", pkts/sd", bus->dhd->rx_packets,
		             (bus->f2rxhdrs + bus->f2rxdata + bus->f1regdata));
		dhd_dump_pct(strbuf, ", pkts/int", bus->dhd->rx_packets, bus->intrcount);
		bcm_bprintf(strbuf, "\n");

		dhd_dump_pct(strbuf, "Rx: glom pct", (100 * bus->rxglompkts),
		             bus->dhd->rx_packets);
		dhd_dump_pct(strbuf, ", pkts/glom", bus->rxglompkts, bus->rxglomframes);
		bcm_bprintf(strbuf, "\n");

		dhd_dump_pct(strbuf, "Tx: pkts/f2wr", bus->dhd->tx_packets, bus->f2txdata);
		dhd_dump_pct(strbuf, ", pkts/f1sd", bus->dhd->tx_packets, bus->f1regdata);
		dhd_dump_pct(strbuf, ", pkts/sd", bus->dhd->tx_packets,
		             (bus->f2txdata + bus->f1regdata));
		dhd_dump_pct(strbuf, ", pkts/int", bus->dhd->tx_packets, bus->intrcount);
		bcm_bprintf(strbuf, "\n");

		dhd_dump_pct(strbuf, "Total: pkts/f2rw",
		             (bus->dhd->tx_packets + bus->dhd->rx_packets),
		             (bus->f2txdata + bus->f2rxhdrs + bus->f2rxdata));
		dhd_dump_pct(strbuf, ", pkts/f1sd",
		             (bus->dhd->tx_packets + bus->dhd->rx_packets), bus->f1regdata);
		dhd_dump_pct(strbuf, ", pkts/sd",
		             (bus->dhd->tx_packets + bus->dhd->rx_packets),
		             (bus->f2txdata + bus->f2rxhdrs + bus->f2rxdata + bus->f1regdata));
		dhd_dump_pct(strbuf, ", pkts/int",
		             (bus->dhd->tx_packets + bus->dhd->rx_packets), bus->intrcount);
		bcm_bprintf(strbuf, "\n\n");
	}

#ifdef SDTEST
	if (bus->pktgen_count) {
		bcm_bprintf(strbuf, "pktgen config and count:\n");
		bcm_bprintf(strbuf, "freq %d count %d print %d total %d min %d len %d\n",
		            bus->pktgen_freq, bus->pktgen_count, bus->pktgen_print,
		            bus->pktgen_total, bus->pktgen_minlen, bus->pktgen_maxlen);
		bcm_bprintf(strbuf, "send attempts %d rcvd %d fail %d\n",
		            bus->pktgen_sent, bus->pktgen_rcvd, bus->pktgen_fail);
	}
#endif /* SDTEST */
#ifdef DHD_DEBUG
	bcm_bprintf(strbuf, "dpc_sched %d host interrupt%spending\n",
	            bus->dpc_sched, (bcmsdh_intr_pending(bus->sdh) ? " " : " not "));
	bcm_bprintf(strbuf, "blocksize %d roundup %d\n", bus->blocksize, bus->roundup);
#endif /* DHD_DEBUG */
	bcm_bprintf(strbuf, "clkstate %d activity %d idletime %d idlecount %d sleeping %d\n",
	            bus->clkstate, bus->activity, bus->idletime, bus->idlecount, bus->sleeping);
}

void
dhd_bus_clearcounts(dhd_pub_t *dhdp)
{
	dhd_bus_t *bus = (dhd_bus_t *)dhdp->bus;

	bus->intrcount = bus->lastintrs = bus->spurious = bus->regfails = 0;
	bus->rxrtx = bus->rx_toolong = bus->rxc_errors = 0;
	bus->rx_hdrfail = bus->rx_badhdr = bus->rx_badseq = 0;
	bus->tx_sderrs = bus->fc_rcvd = bus->fc_xoff = bus->fc_xon = 0;
	bus->rxglomfail = bus->rxglomframes = bus->rxglompkts = 0;
	bus->f2rxhdrs = bus->f2rxdata = bus->f2txdata = bus->f1regdata = 0;
}

#ifdef SDTEST
static int
dhdsdio_pktgen_get(dhd_bus_t *bus, uint8 *arg)
{
	dhd_pktgen_t pktgen;

	pktgen.version = DHD_PKTGEN_VERSION;
	pktgen.freq = bus->pktgen_freq;
	pktgen.count = bus->pktgen_count;
	pktgen.print = bus->pktgen_print;
	pktgen.total = bus->pktgen_total;
	pktgen.minlen = bus->pktgen_minlen;
	pktgen.maxlen = bus->pktgen_maxlen;
	pktgen.numsent = bus->pktgen_sent;
	pktgen.numrcvd = bus->pktgen_rcvd;
	pktgen.numfail = bus->pktgen_fail;
	pktgen.mode = bus->pktgen_mode;
	pktgen.stop = bus->pktgen_stop;

	bcopy(&pktgen, arg, sizeof(pktgen));

	return 0;
}

static int
dhdsdio_pktgen_set(dhd_bus_t *bus, uint8 *arg)
{
	dhd_pktgen_t pktgen;
	uint oldcnt, oldmode;

	bcopy(arg, &pktgen, sizeof(pktgen));
	if (pktgen.version != DHD_PKTGEN_VERSION)
		return BCME_BADARG;

	oldcnt = bus->pktgen_count;
	oldmode = bus->pktgen_mode;

	bus->pktgen_freq = pktgen.freq;
	bus->pktgen_count = pktgen.count;
	bus->pktgen_print = pktgen.print;
	bus->pktgen_total = pktgen.total;
	bus->pktgen_minlen = pktgen.minlen;
	bus->pktgen_maxlen = pktgen.maxlen;
	bus->pktgen_mode = pktgen.mode;
	bus->pktgen_stop = pktgen.stop;

	bus->pktgen_tick = bus->pktgen_ptick = 0;
	bus->pktgen_len = MAX(bus->pktgen_len, bus->pktgen_minlen);
	bus->pktgen_len = MIN(bus->pktgen_len, bus->pktgen_maxlen);

	/* Clear counts for a new pktgen (mode change, or was stopped) */
	if (bus->pktgen_count && (!oldcnt || oldmode != bus->pktgen_mode))
		bus->pktgen_sent = bus->pktgen_rcvd = bus->pktgen_fail = 0;

	return 0;
}
#endif /* SDTEST */

static int
dhdsdio_membytes(dhd_bus_t *bus, bool write, uint32 address, uint8 *data, uint size)
{
	int bcmerror = 0;
	uint32 sdaddr;
	uint dsize;

	/* Determine initial transfer parameters */
	sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
	if ((sdaddr + size) & SBSDIO_SBWINDOW_MASK)
		dsize = (SBSDIO_SB_OFT_ADDR_LIMIT - sdaddr);
	else
		dsize = size;

	/* Set the backplane window to include the start address */
	if ((bcmerror = dhdsdio_set_siaddr_window(bus, address))) {
		DHD_ERROR(("%s: window change failed\n", __FUNCTION__));
		goto xfer_done;
	}

	/* Do the transfer(s) */
	while (size) {
		DHD_INFO(("%s: %s %d bytes at offset 0x%08x in window 0x%08x\n",
		          __FUNCTION__, (write ? "write" : "read"), dsize, sdaddr,
		          (address & SBSDIO_SBWINDOW_MASK)));
		if ((bcmerror = bcmsdh_rwdata(bus->sdh, write, sdaddr, data, dsize))) {
			DHD_ERROR(("%s: membytes transfer failed\n", __FUNCTION__));
			break;
		}

		/* Adjust for next transfer (if any) */
		if ((size -= dsize)) {
			data += dsize;
			address += dsize;
			if ((bcmerror = dhdsdio_set_siaddr_window(bus, address))) {
				DHD_ERROR(("%s: window change failed\n", __FUNCTION__));
				break;
			}
			sdaddr = 0;
			dsize = MIN(SBSDIO_SB_OFT_ADDR_LIMIT, size);
		}
	}

xfer_done:
	/* Return the window to backplane enumeration space for core access */
	if (dhdsdio_set_siaddr_window(bus, bcmsdh_cur_sbwad(bus->sdh))) {
		DHD_ERROR(("%s: FAILED to set window back to 0x%x\n", __FUNCTION__,
			bcmsdh_cur_sbwad(bus->sdh)));
	}

	return bcmerror;
}

#ifdef DHD_DEBUG
static int
dhdsdio_readshared(dhd_bus_t *bus, sdpcm_shared_t *sh)
{
	uint32 addr;
	int rv;

	/* Read last word in memory to determine address of sdpcm_shared structure */
	if ((rv = dhdsdio_membytes(bus, FALSE, bus->ramsize - 4, (uint8 *)&addr, 4)) < 0)
		return rv;

	addr = ltoh32(addr);

	DHD_INFO(("sdpcm_shared address 0x%08X\n", addr));

	/*
	 * Check if addr is valid.
	 * NVRAM length at the end of memory should have been overwritten.
	 */
	if (addr == 0 || ((~addr >> 16) & 0xffff) == (addr & 0xffff)) {
		DHD_ERROR(("%s: address (0x%08x) of sdpcm_shared invalid\n", __FUNCTION__, addr));
		return BCME_ERROR;
	}

	/* Read hndrte_shared structure */
	if ((rv = dhdsdio_membytes(bus, FALSE, addr, (uint8 *)sh, sizeof(sdpcm_shared_t))) < 0)
		return rv;

	/* Endianness */
	sh->flags = ltoh32(sh->flags);
	sh->trap_addr = ltoh32(sh->trap_addr);
	sh->assert_exp_addr = ltoh32(sh->assert_exp_addr);
	sh->assert_file_addr = ltoh32(sh->assert_file_addr);
	sh->assert_line = ltoh32(sh->assert_line);
	sh->console_addr = ltoh32(sh->console_addr);
	sh->msgtrace_addr = ltoh32(sh->msgtrace_addr);

	if ((sh->flags & SDPCM_SHARED_VERSION_MASK) != SDPCM_SHARED_VERSION) {
		DHD_ERROR(("%s: sdpcm_shared version %d in dhd "
		           "is different than sdpcm_shared version %d in dongle\n",
		           __FUNCTION__, SDPCM_SHARED_VERSION,
		           sh->flags & SDPCM_SHARED_VERSION_MASK));
		return BCME_ERROR;
	}

	return BCME_OK;
}

static int
dhdsdio_checkdied(dhd_bus_t *bus, uint8 *data, uint size)
{
	int bcmerror = 0;
	uint msize = 512;
	char *mbuffer = NULL;
	uint maxstrlen = 256;
	char *str = NULL;
	trap_t tr;
	sdpcm_shared_t sdpcm_shared;
	struct bcmstrbuf strbuf;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (data == NULL) {
		/*
		 * Called after a rx ctrl timeout. "data" is NULL.
		 * allocate memory to trace the trap or assert.
		 */
		size = msize;
		mbuffer = data = MALLOC(bus->dhd->osh, msize);
		if (mbuffer == NULL) {
			DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, msize));
			bcmerror = BCME_NOMEM;
			goto done;
		}
	}

	if ((str = MALLOC(bus->dhd->osh, maxstrlen)) == NULL) {
		DHD_ERROR(("%s: MALLOC(%d) failed \n", __FUNCTION__, maxstrlen));
		bcmerror = BCME_NOMEM;
		goto done;
	}

	if ((bcmerror = dhdsdio_readshared(bus, &sdpcm_shared)) < 0)
		goto done;

	bcm_binit(&strbuf, data, size);

	bcm_bprintf(&strbuf, "msgtrace address : 0x%08X\nconsole address  : 0x%08X\n",
	            sdpcm_shared.msgtrace_addr, sdpcm_shared.console_addr);

	if ((sdpcm_shared.flags & SDPCM_SHARED_ASSERT_BUILT) == 0) {
		/* NOTE: Misspelled assert is intentional - DO NOT FIX.
		 * (Avoids conflict with real asserts for programmatic parsing of output.)
		 */
		bcm_bprintf(&strbuf, "Assrt not built in dongle\n");
	}

	if ((sdpcm_shared.flags & (SDPCM_SHARED_ASSERT|SDPCM_SHARED_TRAP)) == 0) {
		/* NOTE: Misspelled assert is intentional - DO NOT FIX.
		 * (Avoids conflict with real asserts for programmatic parsing of output.)
		 */
		bcm_bprintf(&strbuf, "No trap%s in dongle",
		          (sdpcm_shared.flags & SDPCM_SHARED_ASSERT_BUILT)
		          ?"/assrt" :"");
	} else {
		if (sdpcm_shared.flags & SDPCM_SHARED_ASSERT) {
			/* Download assert */
			bcm_bprintf(&strbuf, "Dongle assert");
			if (sdpcm_shared.assert_exp_addr != 0) {
				str[0] = '\0';
				if ((bcmerror = dhdsdio_membytes(bus, FALSE,
				                                 sdpcm_shared.assert_exp_addr,
				                                 (uint8 *)str, maxstrlen)) < 0)
					goto done;

				str[maxstrlen - 1] = '\0';
				bcm_bprintf(&strbuf, " expr \"%s\"", str);
			}

			if (sdpcm_shared.assert_file_addr != 0) {
				str[0] = '\0';
				if ((bcmerror = dhdsdio_membytes(bus, FALSE,
				                                 sdpcm_shared.assert_file_addr,
				                                 (uint8 *)str, maxstrlen)) < 0)
					goto done;

				str[maxstrlen - 1] = '\0';
				bcm_bprintf(&strbuf, " file \"%s\"", str);
			}

			bcm_bprintf(&strbuf, " line %d ", sdpcm_shared.assert_line);
		}

		if (sdpcm_shared.flags & SDPCM_SHARED_TRAP) {
			if ((bcmerror = dhdsdio_membytes(bus, FALSE,
			                                 sdpcm_shared.trap_addr,
			                                 (uint8*)&tr, sizeof(trap_t))) < 0)
				goto done;

			bcm_bprintf(&strbuf,
			"Dongle trap type 0x%x @ epc 0x%x, cpsr 0x%x, spsr 0x%x, sp 0x%x,"
			"lp 0x%x, rpc 0x%x Trap offset 0x%x, "
			"r0 0x%x, r1 0x%x, r2 0x%x, r3 0x%x, r4 0x%x, r5 0x%x, r6 0x%x, r7 0x%x\n",
			tr.type, tr.epc, tr.cpsr, tr.spsr, tr.r13, tr.r14, tr.pc,
			sdpcm_shared.trap_addr,
			tr.r0, tr.r1, tr.r2, tr.r3, tr.r4, tr.r5, tr.r6, tr.r7);
		}
	}

	if (sdpcm_shared.flags & (SDPCM_SHARED_ASSERT | SDPCM_SHARED_TRAP)) {
		DHD_ERROR(("%s: %s\n", __FUNCTION__, strbuf.origbuf));
	}

#ifdef DHD_DEBUG
	if (sdpcm_shared.flags & SDPCM_SHARED_TRAP) {
		/* Mem dump to a file on device */
		dhdsdio_mem_dump(bus);
	}
#endif /* DHD_DEBUG */

done:
	if (mbuffer)
		MFREE(bus->dhd->osh, mbuffer, msize);
	if (str)
		MFREE(bus->dhd->osh, str, maxstrlen);

	return bcmerror;
}

static int
dhdsdio_mem_dump(dhd_bus_t *bus)
{
	int ret = 0;
	int size; /* Full mem size */
	int start = 0; /* Start address */
	int read_size = 0; /* Read size of each iteration */
	uint8 *buf = NULL, *databuf = NULL;

	/* Get full mem size */
	size = bus->ramsize;
	buf = MALLOC(bus->dhd->osh, size);
	if (!buf) {
		printf("%s: Out of memory (%d bytes)\n", __FUNCTION__, size);
		return -1;
	}

	/* Read mem content */
	printf("Dump dongle memory");
	databuf = buf;
	while (size)
	{
		read_size = MIN(MEMBLOCK, size);
		if ((ret = dhdsdio_membytes(bus, FALSE, start, databuf, read_size)))
		{
			printf("%s: Error membytes %d\n", __FUNCTION__, ret);
			if (buf) {
				MFREE(bus->dhd->osh, buf, size);
			}
			return -1;
		}
		printf(".");

		/* Decrement size and increment start address */
		size -= read_size;
		start += read_size;
		databuf += read_size;
	}
	printf("Done\n");

	/* free buf before return !!! */
	if (write_to_file(bus->dhd, buf, bus->ramsize))
	{
		printf("%s: Error writing to files\n", __FUNCTION__);
		return -1;
	}

	/* buf free handled in write_to_file, not here */
	return 0;
}

#define CONSOLE_LINE_MAX	192

static int
dhdsdio_readconsole(dhd_bus_t *bus)
{
	dhd_console_t *c = &bus->console;
	uint8 line[CONSOLE_LINE_MAX], ch;
	uint32 n, idx, addr;
	int rv;

	/* Don't do anything until FWREADY updates console address */
	if (bus->console_addr == 0)
		return 0;

	/* Read console log struct */
	addr = bus->console_addr + OFFSETOF(hndrte_cons_t, log);
	if ((rv = dhdsdio_membytes(bus, FALSE, addr, (uint8 *)&c->log, sizeof(c->log))) < 0)
		return rv;

	/* Allocate console buffer (one time only) */
	if (c->buf == NULL) {
		c->bufsize = ltoh32(c->log.buf_size);
		if ((c->buf = MALLOC(bus->dhd->osh, c->bufsize)) == NULL)
			return BCME_NOMEM;
	}

	idx = ltoh32(c->log.idx);

	/* Protect against corrupt value */
	if (idx > c->bufsize)
		return BCME_ERROR;

	/* Skip reading the console buffer if the index pointer has not moved */
	if (idx == c->last)
		return BCME_OK;

	/* Read the console buffer */
	addr = ltoh32(c->log.buf);
	if ((rv = dhdsdio_membytes(bus, FALSE, addr, c->buf, c->bufsize)) < 0)
		return rv;

	while (c->last != idx) {
		for (n = 0; n < CONSOLE_LINE_MAX - 2; n++) {
			if (c->last == idx) {
				/* This would output a partial line.  Instead, back up
				 * the buffer pointer and output this line next time around.
				 */
				if (c->last >= n)
					c->last -= n;
				else
					c->last = c->bufsize - n;
				goto break2;
			}
			ch = c->buf[c->last];
			c->last = (c->last + 1) % c->bufsize;
			if (ch == '\n')
				break;
			line[n] = ch;
		}

		if (n > 0) {
			if (line[n - 1] == '\r')
				n--;
			line[n] = 0;
			printf("CONSOLE: %s\n", line);
		}
	}
break2:

	return BCME_OK;
}
#endif /* DHD_DEBUG */

int
dhdsdio_downloadvars(dhd_bus_t *bus, void *arg, int len)
{
	int bcmerror = BCME_OK;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Basic sanity checks */
	if (bus->dhd->up) {
		bcmerror = BCME_NOTDOWN;
		goto err;
	}
	if (!len) {
		bcmerror = BCME_BUFTOOSHORT;
		goto err;
	}

	/* Free the old ones and replace with passed variables */
	if (bus->vars)
		MFREE(bus->dhd->osh, bus->vars, bus->varsz);

	bus->vars = MALLOC(bus->dhd->osh, len);
	bus->varsz = bus->vars ? len : 0;
	if (bus->vars == NULL) {
		bcmerror = BCME_NOMEM;
		goto err;
	}

	/* Copy the passed variables, which should include the terminating double-null */
	bcopy(arg, bus->vars, bus->varsz);
err:
	return bcmerror;
}

static int
dhdsdio_doiovar(dhd_bus_t *bus, const bcm_iovar_t *vi, uint32 actionid, const char *name,
                void *params, int plen, void *arg, int len, int val_size)
{
	int bcmerror = 0;
	int32 int_val = 0;
	bool bool_val = 0;

	DHD_TRACE(("%s: Enter, action %d name %s params %p plen %d arg %p len %d val_size %d\n",
	           __FUNCTION__, actionid, name, params, plen, arg, len, val_size));

	if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, IOV_ISSET(actionid))) != 0)
		goto exit;

	if (plen >= (int)sizeof(int_val))
		bcopy(params, &int_val, sizeof(int_val));

	bool_val = (int_val != 0) ? TRUE : FALSE;


	/* Some ioctls use the bus */
	dhd_os_sdlock(bus->dhd);

	/* Check if dongle is in reset. If so, only allow DEVRESET iovars */
	if (bus->dhd->dongle_reset && !(actionid == IOV_SVAL(IOV_DEVRESET) ||
	                                actionid == IOV_GVAL(IOV_DEVRESET))) {
		bcmerror = BCME_NOTREADY;
		goto exit;
	}

	/* Handle sleep stuff before any clock mucking */
	if (vi->varid == IOV_SLEEP) {
		if (IOV_ISSET(actionid)) {
			bcmerror = dhdsdio_bussleep(bus, bool_val);
		} else {
			int_val = (int32)bus->sleeping;
			bcopy(&int_val, arg, val_size);
		}
		goto exit;
	}

	/* Request clock to allow SDIO accesses */
	if (!bus->dhd->dongle_reset) {
		BUS_WAKE(bus);
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
	}

	switch (actionid) {
	case IOV_GVAL(IOV_INTR):
		int_val = (int32)bus->intr;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_INTR):
		bus->intr = bool_val;
		bus->intdis = FALSE;
		if (bus->dhd->up) {
			if (bus->intr) {
				DHD_INTR(("%s: enable SDIO device interrupts\n", __FUNCTION__));
				bcmsdh_intr_enable(bus->sdh);
			} else {
				DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
				bcmsdh_intr_disable(bus->sdh);
			}
		}
		break;

	case IOV_GVAL(IOV_POLLRATE):
		int_val = (int32)bus->pollrate;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_POLLRATE):
		bus->pollrate = (uint)int_val;
		bus->poll = (bus->pollrate != 0);
		break;

	case IOV_GVAL(IOV_IDLETIME):
		int_val = bus->idletime;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_IDLETIME):
		if ((int_val < 0) && (int_val != DHD_IDLE_IMMEDIATE)) {
			bcmerror = BCME_BADARG;
		} else {
			bus->idletime = int_val;
		}
		break;

	case IOV_GVAL(IOV_IDLECLOCK):
		int_val = (int32)bus->idleclock;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_IDLECLOCK):
		bus->idleclock = int_val;
		break;

	case IOV_GVAL(IOV_SD1IDLE):
		int_val = (int32)sd1idle;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_SD1IDLE):
		sd1idle = bool_val;
		break;


	case IOV_SVAL(IOV_MEMBYTES):
	case IOV_GVAL(IOV_MEMBYTES):
	{
		uint32 address;
		uint size, dsize;
		uint8 *data;

		bool set = (actionid == IOV_SVAL(IOV_MEMBYTES));

		ASSERT(plen >= 2*sizeof(int));

		address = (uint32)int_val;
		bcopy((char *)params + sizeof(int_val), &int_val, sizeof(int_val));
		size = (uint)int_val;

		/* Do some validation */
		dsize = set ? plen - (2 * sizeof(int)) : len;
		if (dsize < size) {
			DHD_ERROR(("%s: error on %s membytes, addr 0x%08x size %d dsize %d\n",
			           __FUNCTION__, (set ? "set" : "get"), address, size, dsize));
			bcmerror = BCME_BADARG;
			break;
		}

		DHD_INFO(("%s: Request to %s %d bytes at address 0x%08x\n", __FUNCTION__,
		          (set ? "write" : "read"), size, address));

		/* If we know about SOCRAM, check for a fit */
		if ((bus->orig_ramsize) &&
		    ((address > bus->orig_ramsize) || (address + size > bus->orig_ramsize))) {
			DHD_ERROR(("%s: ramsize 0x%08x doesn't have %d bytes at 0x%08x\n",
			           __FUNCTION__, bus->orig_ramsize, size, address));
			bcmerror = BCME_BADARG;
			break;
		}

		/* Generate the actual data pointer */
		data = set ? (uint8*)params + 2 * sizeof(int): (uint8*)arg;

		/* Call to do the transfer */
		bcmerror = dhdsdio_membytes(bus, set, address, data, size);

		break;
	}

	case IOV_GVAL(IOV_MEMSIZE):
		int_val = (int32)bus->ramsize;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_GVAL(IOV_SDIOD_DRIVE):
		int_val = (int32)dhd_sdiod_drive_strength;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_SDIOD_DRIVE):
		dhd_sdiod_drive_strength = int_val;
		si_sdiod_drive_strength_init(bus->sih, bus->dhd->osh, dhd_sdiod_drive_strength);
		break;

	case IOV_SVAL(IOV_DOWNLOAD):
		bcmerror = dhdsdio_download_state(bus, bool_val);
		break;

	case IOV_SVAL(IOV_VARS):
		bcmerror = dhdsdio_downloadvars(bus, arg, len);
		break;

	case IOV_GVAL(IOV_READAHEAD):
		int_val = (int32)dhd_readahead;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_READAHEAD):
		if (bool_val && !dhd_readahead)
			bus->nextlen = 0;
		dhd_readahead = bool_val;
		break;

	case IOV_GVAL(IOV_SDRXCHAIN):
		int_val = (int32)bus->use_rxchain;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_SDRXCHAIN):
		if (bool_val && !bus->sd_rxchain)
			bcmerror = BCME_UNSUPPORTED;
		else
			bus->use_rxchain = bool_val;
		break;
	case IOV_GVAL(IOV_ALIGNCTL):
		int_val = (int32)dhd_alignctl;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_ALIGNCTL):
		dhd_alignctl = bool_val;
		break;

	case IOV_GVAL(IOV_SDALIGN):
		int_val = DHD_SDALIGN;
		bcopy(&int_val, arg, val_size);
		break;

#ifdef DHD_DEBUG
	case IOV_GVAL(IOV_VARS):
		if (bus->varsz < (uint)len)
			bcopy(bus->vars, arg, bus->varsz);
		else
			bcmerror = BCME_BUFTOOSHORT;
		break;
#endif /* DHD_DEBUG */

#ifdef DHD_DEBUG
	case IOV_GVAL(IOV_SDREG):
	{
		sdreg_t *sd_ptr;
		uint32 addr, size;

		sd_ptr = (sdreg_t *)params;

		addr = (uintptr)bus->regs + sd_ptr->offset;
		size = sd_ptr->func;
		int_val = (int32)bcmsdh_reg_read(bus->sdh, addr, size);
		if (bcmsdh_regfail(bus->sdh))
			bcmerror = BCME_SDIO_ERROR;
		bcopy(&int_val, arg, sizeof(int32));
		break;
	}

	case IOV_SVAL(IOV_SDREG):
	{
		sdreg_t *sd_ptr;
		uint32 addr, size;

		sd_ptr = (sdreg_t *)params;

		addr = (uintptr)bus->regs + sd_ptr->offset;
		size = sd_ptr->func;
		bcmsdh_reg_write(bus->sdh, addr, size, sd_ptr->value);
		if (bcmsdh_regfail(bus->sdh))
			bcmerror = BCME_SDIO_ERROR;
		break;
	}

	/* Same as above, but offset is not backplane (not SDIO core) */
	case IOV_GVAL(IOV_SBREG):
	{
		sdreg_t sdreg;
		uint32 addr, size;

		bcopy(params, &sdreg, sizeof(sdreg));

		addr = SI_ENUM_BASE + sdreg.offset;
		size = sdreg.func;
		int_val = (int32)bcmsdh_reg_read(bus->sdh, addr, size);
		if (bcmsdh_regfail(bus->sdh))
			bcmerror = BCME_SDIO_ERROR;
		bcopy(&int_val, arg, sizeof(int32));
		break;
	}

	case IOV_SVAL(IOV_SBREG):
	{
		sdreg_t sdreg;
		uint32 addr, size;

		bcopy(params, &sdreg, sizeof(sdreg));

		addr = SI_ENUM_BASE + sdreg.offset;
		size = sdreg.func;
		bcmsdh_reg_write(bus->sdh, addr, size, sdreg.value);
		if (bcmsdh_regfail(bus->sdh))
			bcmerror = BCME_SDIO_ERROR;
		break;
	}

	case IOV_GVAL(IOV_SDCIS):
	{
		*(char *)arg = 0;

		bcmstrcat(arg, "\nFunc 0\n");
		bcmsdh_cis_read(bus->sdh, 0x10, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
		bcmstrcat(arg, "\nFunc 1\n");
		bcmsdh_cis_read(bus->sdh, 0x11, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
		bcmstrcat(arg, "\nFunc 2\n");
		bcmsdh_cis_read(bus->sdh, 0x12, (uint8 *)arg + strlen(arg), SBSDIO_CIS_SIZE_LIMIT);
		break;
	}

	case IOV_GVAL(IOV_FORCEEVEN):
		int_val = (int32)forcealign;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_FORCEEVEN):
		forcealign = bool_val;
		break;

	case IOV_GVAL(IOV_TXBOUND):
		int_val = (int32)dhd_txbound;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_TXBOUND):
		dhd_txbound = (uint)int_val;
		break;

	case IOV_GVAL(IOV_RXBOUND):
		int_val = (int32)dhd_rxbound;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_RXBOUND):
		dhd_rxbound = (uint)int_val;
		break;

	case IOV_GVAL(IOV_TXMINMAX):
		int_val = (int32)dhd_txminmax;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_TXMINMAX):
		dhd_txminmax = (uint)int_val;
		break;



#endif /* DHD_DEBUG */


#ifdef SDTEST
	case IOV_GVAL(IOV_EXTLOOP):
		int_val = (int32)bus->ext_loop;
		bcopy(&int_val, arg, val_size);
		break;

	case IOV_SVAL(IOV_EXTLOOP):
		bus->ext_loop = bool_val;
		break;

	case IOV_GVAL(IOV_PKTGEN):
		bcmerror = dhdsdio_pktgen_get(bus, arg);
		break;

	case IOV_SVAL(IOV_PKTGEN):
		bcmerror = dhdsdio_pktgen_set(bus, arg);
		break;
#endif /* SDTEST */


	case IOV_SVAL(IOV_DEVRESET):
		DHD_TRACE(("%s: Called set IOV_DEVRESET=%d dongle_reset=%d busstate=%d\n",
		           __FUNCTION__, bool_val, bus->dhd->dongle_reset,
		           bus->dhd->busstate));

		ASSERT(bus->dhd->osh);
		/* ASSERT(bus->cl_devid); */

		dhd_bus_devreset(bus->dhd, (uint8)bool_val);

		break;

	case IOV_GVAL(IOV_DEVRESET):
		DHD_TRACE(("%s: Called get IOV_DEVRESET\n", __FUNCTION__));

		/* Get its status */
		int_val = (bool) bus->dhd->dongle_reset;
		bcopy(&int_val, arg, val_size);

		break;

	default:
		bcmerror = BCME_UNSUPPORTED;
		break;
	}

exit:
	if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
		bus->activity = FALSE;
		dhdsdio_clkctl(bus, CLK_NONE, TRUE);
	}

	dhd_os_sdunlock(bus->dhd);

	if (actionid == IOV_SVAL(IOV_DEVRESET) && bool_val == FALSE)
		dhd_preinit_ioctls((dhd_pub_t *) bus->dhd);

	return bcmerror;
}

static int
dhdsdio_write_vars(dhd_bus_t *bus)
{
	int bcmerror = 0;
	uint32 varsize;
	uint32 varaddr;
	uint8 *vbuffer;
	uint32 varsizew;
#ifdef DHD_DEBUG
	char *nvram_ularray;
#endif /* DHD_DEBUG */

	/* Even if there are no vars are to be written, we still need to set the ramsize. */
	varsize = bus->varsz ? ROUNDUP(bus->varsz, 4) : 0;
	varaddr = (bus->ramsize - 4) - varsize;

	if (bus->vars) {
		vbuffer = (uint8 *)MALLOC(bus->dhd->osh, varsize);
		if (!vbuffer)
			return BCME_NOMEM;

		bzero(vbuffer, varsize);
		bcopy(bus->vars, vbuffer, bus->varsz);

		/* Write the vars list */
		bcmerror = dhdsdio_membytes(bus, TRUE, varaddr, vbuffer, varsize);
#ifdef DHD_DEBUG
		/* Verify NVRAM bytes */
		DHD_INFO(("Compare NVRAM dl & ul; varsize=%d\n", varsize));
		nvram_ularray = (char*)MALLOC(bus->dhd->osh, varsize);
		if (!nvram_ularray)
			return BCME_NOMEM;

		/* Upload image to verify downloaded contents. */
		memset(nvram_ularray, 0xaa, varsize);

		/* Read the vars list to temp buffer for comparison */
		bcmerror = dhdsdio_membytes(bus, FALSE, varaddr, nvram_ularray, varsize);
		if (bcmerror) {
				DHD_ERROR(("%s: error %d on reading %d nvram bytes at 0x%08x\n",
					__FUNCTION__, bcmerror, varsize, varaddr));
		}
		/* Compare the org NVRAM with the one read from RAM */
		if (memcmp(vbuffer, nvram_ularray, varsize)) {
			DHD_ERROR(("%s: Downloaded NVRAM image is corrupted.\n", __FUNCTION__));
		} else
			DHD_ERROR(("%s: Download, Upload and compare of NVRAM succeeded.\n",
			__FUNCTION__));

		MFREE(bus->dhd->osh, nvram_ularray, varsize);
#endif /* DHD_DEBUG */

		MFREE(bus->dhd->osh, vbuffer, varsize);
	}

	/* adjust to the user specified RAM */
	DHD_INFO(("Physical memory size: %d, usable memory size: %d\n",
		bus->orig_ramsize, bus->ramsize));
	DHD_INFO(("Vars are at %d, orig varsize is %d\n",
		varaddr, varsize));
	varsize = ((bus->orig_ramsize - 4) - varaddr);

	/*
	 * Determine the length token:
	 * Varsize, converted to words, in lower 16-bits, checksum in upper 16-bits.
	 */
	if (bcmerror) {
		varsizew = 0;
	} else {
		varsizew = varsize / 4;
		varsizew = (~varsizew << 16) | (varsizew & 0x0000FFFF);
		varsizew = htol32(varsizew);
	}

	DHD_INFO(("New varsize is %d, length token=0x%08x\n", varsize, varsizew));

	/* Write the length token to the last word */
	bcmerror = dhdsdio_membytes(bus, TRUE, (bus->orig_ramsize - 4),
		(uint8*)&varsizew, 4);

	return bcmerror;
}

static int
dhdsdio_download_state(dhd_bus_t *bus, bool enter)
{
	uint retries;
	int bcmerror = 0;

	/* To enter download state, disable ARM and reset SOCRAM.
	 * To exit download state, simply reset ARM (default is RAM boot).
	 */
	if (enter) {

		bus->alp_only = TRUE;

		if (!(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) &&
		    !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
			DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}

		si_core_disable(bus->sih, 0);
		if (bcmsdh_regfail(bus->sdh)) {
			bcmerror = BCME_SDIO_ERROR;
			goto fail;
		}

		if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) {
			DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}

		si_core_reset(bus->sih, 0, 0);
		if (bcmsdh_regfail(bus->sdh)) {
			DHD_ERROR(("%s: Failure trying reset SOCRAM core?\n", __FUNCTION__));
			bcmerror = BCME_SDIO_ERROR;
			goto fail;
		}

		/* Clear the top bit of memory */
		if (bus->ramsize) {
			uint32 zeros = 0;
			dhdsdio_membytes(bus, TRUE, bus->ramsize - 4, (uint8*)&zeros, 4);
		}
	} else {
		if (!(si_setcore(bus->sih, SOCRAM_CORE_ID, 0))) {
			DHD_ERROR(("%s: Failed to find SOCRAM core!\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}

		if (!si_iscoreup(bus->sih)) {
			DHD_ERROR(("%s: SOCRAM core is down after reset?\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}

		if ((bcmerror = dhdsdio_write_vars(bus))) {
			DHD_ERROR(("%s: no vars written to RAM\n", __FUNCTION__));
			bcmerror = 0;
		}

		if (!si_setcore(bus->sih, PCMCIA_CORE_ID, 0) &&
		    !si_setcore(bus->sih, SDIOD_CORE_ID, 0)) {
			DHD_ERROR(("%s: Can't change back to SDIO core?\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}
		W_SDREG(0xFFFFFFFF, &bus->regs->intstatus, retries);


		if (!(si_setcore(bus->sih, ARM7S_CORE_ID, 0)) &&
		    !(si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
			DHD_ERROR(("%s: Failed to find ARM core!\n", __FUNCTION__));
			bcmerror = BCME_ERROR;
			goto fail;
		}

		si_core_reset(bus->sih, 0, 0);
		if (bcmsdh_regfail(bus->sdh)) {
			DHD_ERROR(("%s: Failure trying to reset ARM core?\n", __FUNCTION__));
			bcmerror = BCME_SDIO_ERROR;
			goto fail;
		}

		/* Allow HT Clock now that the ARM is running. */
		bus->alp_only = FALSE;

		bus->dhd->busstate = DHD_BUS_LOAD;
	}

fail:
	/* Always return to SDIOD core */
	if (!si_setcore(bus->sih, PCMCIA_CORE_ID, 0))
		si_setcore(bus->sih, SDIOD_CORE_ID, 0);

	return bcmerror;
}

int
dhd_bus_iovar_op(dhd_pub_t *dhdp, const char *name,
                 void *params, int plen, void *arg, int len, bool set)
{
	dhd_bus_t *bus = dhdp->bus;
	const bcm_iovar_t *vi = NULL;
	int bcmerror = 0;
	int val_size;
	uint32 actionid;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ASSERT(name);
	ASSERT(len >= 0);

	/* Get MUST have return space */
	ASSERT(set || (arg && len));

	/* Set does NOT take qualifiers */
	ASSERT(!set || (!params && !plen));

	/* Look up var locally; if not found pass to host driver */
	if ((vi = bcm_iovar_lookup(dhdsdio_iovars, name)) == NULL) {
		dhd_os_sdlock(bus->dhd);

		BUS_WAKE(bus);

		/* Turn on clock in case SD command needs backplane */
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

		bcmerror = bcmsdh_iovar_op(bus->sdh, name, params, plen, arg, len, set);

		/* Check for bus configuration changes of interest */

		/* If it was divisor change, read the new one */
		if (set && strcmp(name, "sd_divisor") == 0) {
			if (bcmsdh_iovar_op(bus->sdh, "sd_divisor", NULL, 0,
			                    &bus->sd_divisor, sizeof(int32), FALSE) != BCME_OK) {
				bus->sd_divisor = -1;
				DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, name));
			} else {
				DHD_INFO(("%s: noted %s update, value now %d\n",
				          __FUNCTION__, name, bus->sd_divisor));
			}
		}
		/* If it was a mode change, read the new one */
		if (set && strcmp(name, "sd_mode") == 0) {
			if (bcmsdh_iovar_op(bus->sdh, "sd_mode", NULL, 0,
			                    &bus->sd_mode, sizeof(int32), FALSE) != BCME_OK) {
				bus->sd_mode = -1;
				DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, name));
			} else {
				DHD_INFO(("%s: noted %s update, value now %d\n",
				          __FUNCTION__, name, bus->sd_mode));
			}
		}
		/* Similar check for blocksize change */
		if (set && strcmp(name, "sd_blocksize") == 0) {
			int32 fnum = 2;
			if (bcmsdh_iovar_op(bus->sdh, "sd_blocksize", &fnum, sizeof(int32),
			                    &bus->blocksize, sizeof(int32), FALSE) != BCME_OK) {
				bus->blocksize = 0;
				DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_blocksize"));
			} else {
				DHD_INFO(("%s: noted %s update, value now %d\n",
				          __FUNCTION__, "sd_blocksize", bus->blocksize));
			}
		}
		bus->roundup = MIN(max_roundup, bus->blocksize);

		if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
			bus->activity = FALSE;
			dhdsdio_clkctl(bus, CLK_NONE, TRUE);
		}

		dhd_os_sdunlock(bus->dhd);
		goto exit;
	}

	DHD_CTL(("%s: %s %s, len %d plen %d\n", __FUNCTION__,
	         name, (set ? "set" : "get"), len, plen));

	/* set up 'params' pointer in case this is a set command so that
	 * the convenience int and bool code can be common to set and get
	 */
	if (params == NULL) {
		params = arg;
		plen = len;
	}

	if (vi->type == IOVT_VOID)
		val_size = 0;
	else if (vi->type == IOVT_BUFFER)
		val_size = len;
	else
		/* all other types are integer sized */
		val_size = sizeof(int);

	actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
	bcmerror = dhdsdio_doiovar(bus, vi, actionid, name, params, plen, arg, len, val_size);

exit:
	return bcmerror;
}

void
dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex)
{
	osl_t *osh = bus->dhd->osh;
	uint32 local_hostintmask;
	uint8 saveclk;
	uint retries;
	int err;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (enforce_mutex)
		dhd_os_sdlock(bus->dhd);

	BUS_WAKE(bus);


	/* Enable clock for device interrupts */
	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

	/* Disable and clear interrupts at the chip level also */
	W_SDREG(0, &bus->regs->hostintmask, retries);
	local_hostintmask = bus->hostintmask;
	bus->hostintmask = 0;

	/* Change our idea of bus state */
	bus->dhd->busstate = DHD_BUS_DOWN;

	/* Force clocks on backplane to be sure F2 interrupt propagates */
	saveclk = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
	if (!err) {
		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
		                 (saveclk | SBSDIO_FORCE_HT), &err);
	}
	if (err) {
		DHD_ERROR(("%s: Failed to force clock for F2: err %d\n", __FUNCTION__, err));
	}

	/* Turn off the bus (F2), free any pending packets */
	DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
	bcmsdh_intr_disable(bus->sdh);
	bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, SDIO_FUNC_ENABLE_1, NULL);

	/* Clear any pending interrupts now that F2 is disabled */
	W_SDREG(local_hostintmask, &bus->regs->intstatus, retries);

	/* Turn off the backplane clock (only) */
	dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);

	/* Clear the data packet queues */
	pktq_flush(osh, &bus->txq, TRUE);

	/* Clear any held glomming stuff */
	if (bus->glomd)
		PKTFREE(osh, bus->glomd, FALSE);

	if (bus->glom)
		PKTFREE(osh, bus->glom, FALSE);

	bus->glom = bus->glomd = NULL;

	/* Clear rx control and wake any waiters */
	bus->rxlen = 0;
	dhd_os_ioctl_resp_wake(bus->dhd);

	/* Reset some F2 state stuff */
	bus->rxskip = FALSE;
	bus->tx_seq = bus->rx_seq = 0;

	if (enforce_mutex)
		dhd_os_sdunlock(bus->dhd);
}

int
dhd_bus_init(dhd_pub_t *dhdp, bool enforce_mutex)
{
	dhd_bus_t *bus = dhdp->bus;
	dhd_timeout_t tmo;
	uint retries = 0;
	uint8 ready, enable;
	int err, ret = 0;
	uint8 saveclk;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ASSERT(bus->dhd);
	if (!bus->dhd)
		return 0;

	if (enforce_mutex)
		dhd_os_sdlock(bus->dhd);

	/* Make sure backplane clock is on, needed to generate F2 interrupt */
	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
	if (bus->clkstate != CLK_AVAIL)
		goto exit;


	/* Force clocks on backplane to be sure F2 interrupt propagates */
	saveclk = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
	if (!err) {
		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
		                 (saveclk | SBSDIO_FORCE_HT), &err);
	}
	if (err) {
		DHD_ERROR(("%s: Failed to force clock for F2: err %d\n", __FUNCTION__, err));
		goto exit;
	}

	/* Enable function 2 (frame transfers) */
	W_SDREG((SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT),
	        &bus->regs->tosbmailboxdata, retries);
	enable = (SDIO_FUNC_ENABLE_1 | SDIO_FUNC_ENABLE_2);

	bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, enable, NULL);

	/* Give the dongle some time to do its thing and set IOR2 */
	dhd_timeout_start(&tmo, DHD_WAIT_F2RDY * 1000);

	ready = 0;
	while (ready != enable && !dhd_timeout_expired(&tmo))
	        ready = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IORDY, NULL);


	DHD_INFO(("%s: enable 0x%02x, ready 0x%02x (waited %uus)\n",
	          __FUNCTION__, enable, ready, tmo.elapsed));


	/* If F2 successfully enabled, set core and enable interrupts */
	if (ready == enable) {
		/* Make sure we're talking to the core. */
		if (!(bus->regs = si_setcore(bus->sih, PCMCIA_CORE_ID, 0)))
			bus->regs = si_setcore(bus->sih, SDIOD_CORE_ID, 0);

		/* Set up the interrupt mask and enable interrupts */
		bus->hostintmask = HOSTINTMASK;
		W_SDREG(bus->hostintmask, &bus->regs->hostintmask, retries);

		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_WATERMARK, (uint8)watermark, &err);

		/* Set bus state according to enable result */
		dhdp->busstate = DHD_BUS_DATA;

		/* bcmsdh_intr_unmask(bus->sdh); */

		bus->intdis = FALSE;
		if (bus->intr) {
			DHD_INTR(("%s: enable SDIO device interrupts\n", __FUNCTION__));
			bcmsdh_intr_enable(bus->sdh);
		} else {
			DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
			bcmsdh_intr_disable(bus->sdh);
		}

	}


	else {
		/* Disable F2 again */
		enable = SDIO_FUNC_ENABLE_1;
		bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, enable, NULL);
	}

	/* Restore previous clock setting */
	bcmsdh_cfg_write(bus->sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, saveclk, &err);


	/* If we didn't come up, turn off backplane clock */
	if (dhdp->busstate != DHD_BUS_DATA)
		dhdsdio_clkctl(bus, CLK_NONE, FALSE);

exit:
	if (enforce_mutex)
		dhd_os_sdunlock(bus->dhd);

	return ret;
}

static void
dhdsdio_rxfail(dhd_bus_t *bus, bool abort, bool rtx)
{
	bcmsdh_info_t *sdh = bus->sdh;
	sdpcmd_regs_t *regs = bus->regs;
	uint retries = 0;
	uint16 lastrbc;
	uint8 hi, lo;
	int err;

	DHD_ERROR(("%s: %sterminate frame%s\n", __FUNCTION__,
	           (abort ? "abort command, " : ""), (rtx ? ", send NAK" : "")));

	if (abort) {
		bcmsdh_abort(sdh, SDIO_FUNC_2);
	}

	bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL, SFC_RF_TERM, &err);
	bus->f1regdata++;

	/* Wait until the packet has been flushed (device/FIFO stable) */
	for (lastrbc = retries = 0xffff; retries > 0; retries--) {
		hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_RFRAMEBCHI, NULL);
		lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_RFRAMEBCLO, NULL);
		bus->f1regdata += 2;

		if ((hi == 0) && (lo == 0))
			break;

		if ((hi > (lastrbc >> 8)) && (lo > (lastrbc & 0x00ff))) {
			DHD_ERROR(("%s: count growing: last 0x%04x now 0x%04x\n",
			           __FUNCTION__, lastrbc, ((hi << 8) + lo)));
		}
		lastrbc = (hi << 8) + lo;
	}

	if (!retries) {
		DHD_ERROR(("%s: count never zeroed: last 0x%04x\n", __FUNCTION__, lastrbc));
	} else {
		DHD_INFO(("%s: flush took %d iterations\n", __FUNCTION__, (0xffff - retries)));
	}

	if (rtx) {
		bus->rxrtx++;
		W_SDREG(SMB_NAK, &regs->tosbmailbox, retries);
		bus->f1regdata++;
		if (retries <= retry_limit) {
			bus->rxskip = TRUE;
		}
	}

	/* Clear partial in any case */
	bus->nextlen = 0;

	/* If we can't reach the device, signal failure */
	if (err || bcmsdh_regfail(sdh))
		bus->dhd->busstate = DHD_BUS_DOWN;
}

static void
dhdsdio_read_control(dhd_bus_t *bus, uint8 *hdr, uint len, uint doff)
{
	bcmsdh_info_t *sdh = bus->sdh;
	uint rdlen, pad;

	int sdret;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Control data already received in aligned rxctl */
	if ((bus->bus == SPI_BUS) && (!bus->usebufpool))
		goto gotpkt;

	ASSERT(bus->rxbuf);
	/* Set rxctl for frame (w/optional alignment) */
	bus->rxctl = bus->rxbuf;
	if (dhd_alignctl) {
		bus->rxctl += firstread;
		if ((pad = ((uintptr)bus->rxctl % DHD_SDALIGN)))
			bus->rxctl += (DHD_SDALIGN - pad);
		bus->rxctl -= firstread;
	}
	ASSERT(bus->rxctl >= bus->rxbuf);

	/* Copy the already-read portion over */
	bcopy(hdr, bus->rxctl, firstread);
	if (len <= firstread)
		goto gotpkt;

	/* Copy the full data pkt in gSPI case and process ioctl. */
	if (bus->bus == SPI_BUS) {
		bcopy(hdr, bus->rxctl, len);
		goto gotpkt;
	}

	/* Raise rdlen to next SDIO block to avoid tail command */
	rdlen = len - firstread;
	if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
		pad = bus->blocksize - (rdlen % bus->blocksize);
		if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
		    ((len + pad) < bus->dhd->maxctl))
			rdlen += pad;
	} else if (rdlen % DHD_SDALIGN) {
		rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
	}

	/* Satisfy length-alignment requirements */
	if (forcealign && (rdlen & (ALIGNMENT - 1)))
		rdlen = ROUNDUP(rdlen, ALIGNMENT);

	/* Drop if the read is too big or it exceeds our maximum */
	if ((rdlen + firstread) > bus->dhd->maxctl) {
		DHD_ERROR(("%s: %d-byte control read exceeds %d-byte buffer\n",
		           __FUNCTION__, rdlen, bus->dhd->maxctl));
		bus->dhd->rx_errors++;
		dhdsdio_rxfail(bus, FALSE, FALSE);
		goto done;
	}

	if ((len - doff) > bus->dhd->maxctl) {
		DHD_ERROR(("%s: %d-byte ctl frame (%d-byte ctl data) exceeds %d-byte limit\n",
		           __FUNCTION__, len, (len - doff), bus->dhd->maxctl));
		bus->dhd->rx_errors++; bus->rx_toolong++;
		dhdsdio_rxfail(bus, FALSE, FALSE);
		goto done;
	}


	/* Read remainder of frame body into the rxctl buffer */
	sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
	                            (bus->rxctl + firstread), rdlen, NULL, NULL, NULL);
	bus->f2rxdata++;
	ASSERT(sdret != BCME_PENDING);

	/* Control frame failures need retransmission */
	if (sdret < 0) {
		DHD_ERROR(("%s: read %d control bytes failed: %d\n", __FUNCTION__, rdlen, sdret));
		bus->rxc_errors++; /* dhd.rx_ctlerrs is higher level */
		dhdsdio_rxfail(bus, TRUE, TRUE);
		goto done;
	}

gotpkt:

#ifdef DHD_DEBUG
	if (DHD_BYTES_ON() && DHD_CTL_ON()) {
		prhex("RxCtrl", bus->rxctl, len);
	}
#endif

	/* Point to valid data and indicate its length */
	bus->rxctl += doff;
	bus->rxlen = len - doff;

done:
	/* Awake any waiters */
	dhd_os_ioctl_resp_wake(bus->dhd);
}

static uint8
dhdsdio_rxglom(dhd_bus_t *bus, uint8 rxseq)
{
	uint16 dlen, totlen;
	uint8 *dptr, num = 0;

	uint16 sublen, check;
	void *pfirst, *plast, *pnext, *save_pfirst;
	osl_t *osh = bus->dhd->osh;

	int errcode;
	uint8 chan, seq, doff, sfdoff;
	uint8 txmax;

	int ifidx = 0;
	bool usechain = bus->use_rxchain;

	/* If packets, issue read(s) and send up packet chain */
	/* Return sequence numbers consumed? */

	DHD_TRACE(("dhdsdio_rxglom: start: glomd %p glom %p\n", bus->glomd, bus->glom));

	/* If there's a descriptor, generate the packet chain */
	if (bus->glomd) {
		dhd_os_sdlock_rxq(bus->dhd);

		pfirst = plast = pnext = NULL;
		dlen = (uint16)PKTLEN(osh, bus->glomd);
		dptr = PKTDATA(osh, bus->glomd);
		if (!dlen || (dlen & 1)) {
			DHD_ERROR(("%s: bad glomd len (%d), ignore descriptor\n",
			           __FUNCTION__, dlen));
			dlen = 0;
		}

		for (totlen = num = 0; dlen; num++) {
			/* Get (and move past) next length */
			sublen = ltoh16_ua(dptr);
			dlen -= sizeof(uint16);
			dptr += sizeof(uint16);
			if ((sublen < SDPCM_HDRLEN) ||
			    ((num == 0) && (sublen < (2 * SDPCM_HDRLEN)))) {
				DHD_ERROR(("%s: descriptor len %d bad: %d\n",
				           __FUNCTION__, num, sublen));
				pnext = NULL;
				break;
			}
			if (sublen % DHD_SDALIGN) {
				DHD_ERROR(("%s: sublen %d not a multiple of %d\n",
				           __FUNCTION__, sublen, DHD_SDALIGN));
				usechain = FALSE;
			}
			totlen += sublen;

			/* For last frame, adjust read len so total is a block multiple */
			if (!dlen) {
				sublen += (ROUNDUP(totlen, bus->blocksize) - totlen);
				totlen = ROUNDUP(totlen, bus->blocksize);
			}

			/* Allocate/chain packet for next subframe */
			if ((pnext = PKTGET(osh, sublen + DHD_SDALIGN, FALSE)) == NULL) {
				DHD_ERROR(("%s: PKTGET failed, num %d len %d\n",
				           __FUNCTION__, num, sublen));
				break;
			}
			ASSERT(!PKTLINK(pnext));
			if (!pfirst) {
				ASSERT(!plast);
				pfirst = plast = pnext;
			} else {
				ASSERT(plast);
				PKTSETNEXT(osh, plast, pnext);
				plast = pnext;
			}

			/* Adhere to start alignment requirements */
			PKTALIGN(osh, pnext, sublen, DHD_SDALIGN);
		}

		/* If all allocations succeeded, save packet chain in bus structure */
		if (pnext) {
			DHD_GLOM(("%s: allocated %d-byte packet chain for %d subframes\n",
			          __FUNCTION__, totlen, num));
			if (DHD_GLOM_ON() && bus->nextlen) {
				if (totlen != bus->nextlen) {
					DHD_GLOM(("%s: glomdesc mismatch: nextlen %d glomdesc %d "
					          "rxseq %d\n", __FUNCTION__, bus->nextlen,
					          totlen, rxseq));
				}
			}
			bus->glom = pfirst;
			pfirst = pnext = NULL;
		} else {
			if (pfirst)
				PKTFREE(osh, pfirst, FALSE);
			bus->glom = NULL;
			num = 0;
		}

		/* Done with descriptor packet */
		PKTFREE(osh, bus->glomd, FALSE);
		bus->glomd = NULL;
		bus->nextlen = 0;

		dhd_os_sdunlock_rxq(bus->dhd);
	}

	/* Ok -- either we just generated a packet chain, or had one from before */
	if (bus->glom) {
		if (DHD_GLOM_ON()) {
			DHD_GLOM(("%s: attempt superframe read, packet chain:\n", __FUNCTION__));
			for (pnext = bus->glom; pnext; pnext = PKTNEXT(osh, pnext)) {
				DHD_GLOM(("    %p: %p len 0x%04x (%d)\n",
				          pnext, (uint8*)PKTDATA(osh, pnext),
				          PKTLEN(osh, pnext), PKTLEN(osh, pnext)));
			}
		}

		pfirst = bus->glom;
		dlen = (uint16)pkttotlen(osh, pfirst);

		/* Do an SDIO read for the superframe.  Configurable iovar to
		 * read directly into the chained packet, or allocate a large
		 * packet and and copy into the chain.
		 */
		if (usechain) {
			errcode = dhd_bcmsdh_recv_buf(bus,
			                              bcmsdh_cur_sbwad(bus->sdh), SDIO_FUNC_2,
			                              F2SYNC, (uint8*)PKTDATA(osh, pfirst),
			                              dlen, pfirst, NULL, NULL);
		} else if (bus->dataptr) {
			errcode = dhd_bcmsdh_recv_buf(bus,
			                              bcmsdh_cur_sbwad(bus->sdh), SDIO_FUNC_2,
			                              F2SYNC, bus->dataptr,
			                              dlen, NULL, NULL, NULL);
			sublen = (uint16)pktfrombuf(osh, pfirst, 0, dlen, bus->dataptr);
			if (sublen != dlen) {
				DHD_ERROR(("%s: FAILED TO COPY, dlen %d sublen %d\n",
				           __FUNCTION__, dlen, sublen));
				errcode = -1;
			}
			pnext = NULL;
		} else {
			DHD_ERROR(("COULDN'T ALLOC %d-BYTE GLOM, FORCE FAILURE\n", dlen));
			errcode = -1;
		}
		bus->f2rxdata++;
		ASSERT(errcode != BCME_PENDING);

		/* On failure, kill the superframe, allow a couple retries */
		if (errcode < 0) {
			DHD_ERROR(("%s: glom read of %d bytes failed: %d\n",
			           __FUNCTION__, dlen, errcode));
			bus->dhd->rx_errors++;

			if (bus->glomerr++ < 3) {
				dhdsdio_rxfail(bus, TRUE, TRUE);
			} else {
				bus->glomerr = 0;
				dhdsdio_rxfail(bus, TRUE, FALSE);
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE(osh, bus->glom, FALSE);
				dhd_os_sdunlock_rxq(bus->dhd);
				bus->rxglomfail++;
				bus->glom = NULL;
			}
			return 0;
		}

#ifdef DHD_DEBUG
		if (DHD_GLOM_ON()) {
			prhex("SUPERFRAME", PKTDATA(osh, pfirst),
			      MIN(PKTLEN(osh, pfirst), 48));
		}
#endif


		/* Validate the superframe header */
		dptr = (uint8 *)PKTDATA(osh, pfirst);
		sublen = ltoh16_ua(dptr);
		check = ltoh16_ua(dptr + sizeof(uint16));

		chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
		seq = SDPCM_PACKET_SEQUENCE(&dptr[SDPCM_FRAMETAG_LEN]);
		bus->nextlen = dptr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
		if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
			DHD_INFO(("%s: got frame w/nextlen too large (%d) seq %d\n",
			          __FUNCTION__, bus->nextlen, seq));
			bus->nextlen = 0;
		}
		doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
		txmax = SDPCM_WINDOW_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);

		errcode = 0;
		if ((uint16)~(sublen^check)) {
			DHD_ERROR(("%s (superframe): HW hdr error: len/check 0x%04x/0x%04x\n",
			           __FUNCTION__, sublen, check));
			errcode = -1;
		} else if (ROUNDUP(sublen, bus->blocksize) != dlen) {
			DHD_ERROR(("%s (superframe): len 0x%04x, rounded 0x%04x, expect 0x%04x\n",
			           __FUNCTION__, sublen, ROUNDUP(sublen, bus->blocksize), dlen));
			errcode = -1;
		} else if (SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]) != SDPCM_GLOM_CHANNEL) {
			DHD_ERROR(("%s (superframe): bad channel %d\n", __FUNCTION__,
			           SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN])));
			errcode = -1;
		} else if (SDPCM_GLOMDESC(&dptr[SDPCM_FRAMETAG_LEN])) {
			DHD_ERROR(("%s (superframe): got second descriptor?\n", __FUNCTION__));
			errcode = -1;
		} else if ((doff < SDPCM_HDRLEN) ||
		           (doff > (PKTLEN(osh, pfirst) - SDPCM_HDRLEN))) {
			DHD_ERROR(("%s (superframe): Bad data offset %d: HW %d pkt %d min %d\n",
			           __FUNCTION__, doff, sublen, PKTLEN(osh, pfirst), SDPCM_HDRLEN));
			errcode = -1;
		}

		/* Check sequence number of superframe SW header */
		if (rxseq != seq) {
			DHD_INFO(("%s: (superframe) rx_seq %d, expected %d\n",
			          __FUNCTION__, seq, rxseq));
			bus->rx_badseq++;
			rxseq = seq;
		}

		/* Check window for sanity */
		if ((uint8)(txmax - bus->tx_seq) > 0x40) {
			DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
			           __FUNCTION__, txmax, bus->tx_seq));
			txmax = bus->tx_seq + 2;
		}
		bus->tx_max = txmax;

		/* Remove superframe header, remember offset */
		PKTPULL(osh, pfirst, doff);
		sfdoff = doff;

		/* Validate all the subframe headers */
		for (num = 0, pnext = pfirst; pnext && !errcode;
		     num++, pnext = PKTNEXT(osh, pnext)) {
			dptr = (uint8 *)PKTDATA(osh, pnext);
			dlen = (uint16)PKTLEN(osh, pnext);
			sublen = ltoh16_ua(dptr);
			check = ltoh16_ua(dptr + sizeof(uint16));
			chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
			doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);
#ifdef DHD_DEBUG
			if (DHD_GLOM_ON()) {
				prhex("subframe", dptr, 32);
			}
#endif

			if ((uint16)~(sublen^check)) {
				DHD_ERROR(("%s (subframe %d): HW hdr error: "
				           "len/check 0x%04x/0x%04x\n",
				           __FUNCTION__, num, sublen, check));
				errcode = -1;
			} else if ((sublen > dlen) || (sublen < SDPCM_HDRLEN)) {
				DHD_ERROR(("%s (subframe %d): length mismatch: "
				           "len 0x%04x, expect 0x%04x\n",
				           __FUNCTION__, num, sublen, dlen));
				errcode = -1;
			} else if ((chan != SDPCM_DATA_CHANNEL) &&
			           (chan != SDPCM_EVENT_CHANNEL)) {
				DHD_ERROR(("%s (subframe %d): bad channel %d\n",
				           __FUNCTION__, num, chan));
				errcode = -1;
			} else if ((doff < SDPCM_HDRLEN) || (doff > sublen)) {
				DHD_ERROR(("%s (subframe %d): Bad data offset %d: HW %d min %d\n",
				           __FUNCTION__, num, doff, sublen, SDPCM_HDRLEN));
				errcode = -1;
			}
		}

		if (errcode) {
			/* Terminate frame on error, request a couple retries */
			if (bus->glomerr++ < 3) {
				/* Restore superframe header space */
				PKTPUSH(osh, pfirst, sfdoff);
				dhdsdio_rxfail(bus, TRUE, TRUE);
			} else {
				bus->glomerr = 0;
				dhdsdio_rxfail(bus, TRUE, FALSE);
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE(osh, bus->glom, FALSE);
				dhd_os_sdunlock_rxq(bus->dhd);
				bus->rxglomfail++;
				bus->glom = NULL;
			}
			bus->nextlen = 0;
			return 0;
		}

		/* Basic SD framing looks ok - process each packet (header) */
		save_pfirst = pfirst;
		bus->glom = NULL;
		plast = NULL;

		dhd_os_sdlock_rxq(bus->dhd);
		for (num = 0; pfirst; rxseq++, pfirst = pnext) {
			pnext = PKTNEXT(osh, pfirst);
			PKTSETNEXT(osh, pfirst, NULL);

			dptr = (uint8 *)PKTDATA(osh, pfirst);
			sublen = ltoh16_ua(dptr);
			chan = SDPCM_PACKET_CHANNEL(&dptr[SDPCM_FRAMETAG_LEN]);
			seq = SDPCM_PACKET_SEQUENCE(&dptr[SDPCM_FRAMETAG_LEN]);
			doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]);

			DHD_GLOM(("%s: Get subframe %d, %p(%p/%d), sublen %d chan %d seq %d\n",
			          __FUNCTION__, num, pfirst, PKTDATA(osh, pfirst),
			          PKTLEN(osh, pfirst), sublen, chan, seq));

			ASSERT((chan == SDPCM_DATA_CHANNEL) || (chan == SDPCM_EVENT_CHANNEL));

			if (rxseq != seq) {
				DHD_GLOM(("%s: rx_seq %d, expected %d\n",
				          __FUNCTION__, seq, rxseq));
				bus->rx_badseq++;
				rxseq = seq;
			}

#ifdef DHD_DEBUG
			if (DHD_BYTES_ON() && DHD_DATA_ON()) {
				prhex("Rx Subframe Data", dptr, dlen);
			}
#endif

			PKTSETLEN(osh, pfirst, sublen);
			PKTPULL(osh, pfirst, doff);

			if (PKTLEN(osh, pfirst) == 0) {
				PKTFREE(bus->dhd->osh, pfirst, FALSE);
				if (plast) {
					PKTSETNEXT(osh, plast, pnext);
				} else {
					ASSERT(save_pfirst == pfirst);
					save_pfirst = pnext;
				}
				continue;
			} else if (dhd_prot_hdrpull(bus->dhd, &ifidx, pfirst) != 0) {
				DHD_ERROR(("%s: rx protocol error\n", __FUNCTION__));
				bus->dhd->rx_errors++;
				PKTFREE(osh, pfirst, FALSE);
				if (plast) {
					PKTSETNEXT(osh, plast, pnext);
				} else {
					ASSERT(save_pfirst == pfirst);
					save_pfirst = pnext;
				}
				continue;
			}

			/* this packet will go up, link back into chain and count it */
			PKTSETNEXT(osh, pfirst, pnext);
			plast = pfirst;
			num++;

#ifdef DHD_DEBUG
			if (DHD_GLOM_ON()) {
				DHD_GLOM(("%s subframe %d to stack, %p(%p/%d) nxt/lnk %p/%p\n",
				          __FUNCTION__, num, pfirst,
				          PKTDATA(osh, pfirst), PKTLEN(osh, pfirst),
				          PKTNEXT(osh, pfirst), PKTLINK(pfirst)));
				prhex("", (uint8 *)PKTDATA(osh, pfirst),
				      MIN(PKTLEN(osh, pfirst), 32));
			}
#endif /* DHD_DEBUG */
		}
		dhd_os_sdunlock_rxq(bus->dhd);
		if (num) {
			dhd_os_sdunlock(bus->dhd);
			dhd_rx_frame(bus->dhd, ifidx, save_pfirst, num);
			dhd_os_sdlock(bus->dhd);
		}

		bus->rxglomframes++;
		bus->rxglompkts += num;
	}
	return num;
}

/* Return TRUE if there may be more frames to read */
static uint
dhdsdio_readframes(dhd_bus_t *bus, uint maxframes, bool *finished)
{
	osl_t *osh = bus->dhd->osh;
	bcmsdh_info_t *sdh = bus->sdh;

	uint16 len, check;	/* Extracted hardware header fields */
	uint8 chan, seq, doff;	/* Extracted software header fields */
	uint8 fcbits;		/* Extracted fcbits from software header */
	uint8 delta;

	void *pkt;	/* Packet for event or data frames */
	uint16 pad;	/* Number of pad bytes to read */
	uint16 rdlen;	/* Total number of bytes to read */
	uint8 rxseq;	/* Next sequence number to expect */
	uint rxleft = 0;	/* Remaining number of frames allowed */
	int sdret;	/* Return code from bcmsdh calls */
	uint8 txmax;	/* Maximum tx sequence offered */
	bool len_consistent; /* Result of comparing readahead len and len from hw-hdr */
	uint8 *rxbuf;
	int ifidx = 0;
	uint rxcount = 0; /* Total frames read */

#if defined(DHD_DEBUG) || defined(SDTEST)
	bool sdtest = FALSE;	/* To limit message spew from test mode */
#endif

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ASSERT(maxframes);

#ifdef SDTEST
	/* Allow pktgen to override maxframes */
	if (bus->pktgen_count && (bus->pktgen_mode == DHD_PKTGEN_RECV)) {
		maxframes = bus->pktgen_count;
		sdtest = TRUE;
	}
#endif

	/* Not finished unless we encounter no more frames indication */
	*finished = FALSE;


	for (rxseq = bus->rx_seq, rxleft = maxframes;
	     !bus->rxskip && rxleft && bus->dhd->busstate != DHD_BUS_DOWN;
	     rxseq++, rxleft--) {

		/* Handle glomming separately */
		if (bus->glom || bus->glomd) {
			uint8 cnt;
			DHD_GLOM(("%s: calling rxglom: glomd %p, glom %p\n",
			          __FUNCTION__, bus->glomd, bus->glom));
			cnt = dhdsdio_rxglom(bus, rxseq);
			DHD_GLOM(("%s: rxglom returned %d\n", __FUNCTION__, cnt));
			rxseq += cnt - 1;
			rxleft = (rxleft > cnt) ? (rxleft - cnt) : 1;
			continue;
		}

		/* Try doing single read if we can */
		if (dhd_readahead && bus->nextlen) {
			uint16 nextlen = bus->nextlen;
			bus->nextlen = 0;

			if (bus->bus == SPI_BUS) {
				rdlen = len = nextlen;
			}
			else {
				rdlen = len = nextlen << 4;

				/* Pad read to blocksize for efficiency */
				if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
					pad = bus->blocksize - (rdlen % bus->blocksize);
					if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
						((rdlen + pad + firstread) < MAX_RX_DATASZ))
						rdlen += pad;
				} else if (rdlen % DHD_SDALIGN) {
					rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
				}
			}

			/* We use bus->rxctl buffer in WinXP for initial control pkt receives.
			 * Later we use buffer-poll for data as well as control packets.
			 * This is required becuase dhd receives full frame in gSPI unlike SDIO.
			 * After the frame is received we have to distinguish whether it is data
			 * or non-data frame.
			 */
			/* Allocate a packet buffer */
			dhd_os_sdlock_rxq(bus->dhd);
			if (!(pkt = PKTGET(osh, rdlen + DHD_SDALIGN, FALSE))) {
				if (bus->bus == SPI_BUS) {
					bus->usebufpool = FALSE;
					bus->rxctl = bus->rxbuf;
					if (dhd_alignctl) {
						bus->rxctl += firstread;
						if ((pad = ((uintptr)bus->rxctl % DHD_SDALIGN)))
							bus->rxctl += (DHD_SDALIGN - pad);
						bus->rxctl -= firstread;
					}
					ASSERT(bus->rxctl >= bus->rxbuf);
					rxbuf = bus->rxctl;
					/* Read the entire frame */
					sdret = dhd_bcmsdh_recv_buf(bus,
					                            bcmsdh_cur_sbwad(sdh),
					                            SDIO_FUNC_2,
					                            F2SYNC, rxbuf, rdlen,
					                            NULL, NULL, NULL);
					bus->f2rxdata++;
					ASSERT(sdret != BCME_PENDING);


					/* Control frame failures need retransmission */
					if (sdret < 0) {
						DHD_ERROR(("%s: read %d control bytes failed: %d\n",
						   __FUNCTION__, rdlen, sdret));
						/* dhd.rx_ctlerrs is higher level */
						bus->rxc_errors++;
						dhd_os_sdunlock_rxq(bus->dhd);
						dhdsdio_rxfail(bus, TRUE,
						    (bus->bus == SPI_BUS) ? FALSE : TRUE);
						continue;
					}
				} else {
					/* Give up on data, request rtx of events */
					DHD_ERROR(("%s (nextlen): PKTGET failed: len %d rdlen %d "
					           "expected rxseq %d\n",
					           __FUNCTION__, len, rdlen, rxseq));
					/* Just go try again w/normal header read */
					dhd_os_sdunlock_rxq(bus->dhd);
					continue;
				}
			} else {
				if (bus->bus == SPI_BUS)
					bus->usebufpool = TRUE;

				ASSERT(!PKTLINK(pkt));
				PKTALIGN(osh, pkt, rdlen, DHD_SDALIGN);
				rxbuf = (uint8 *)PKTDATA(osh, pkt);
				/* Read the entire frame */
				sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh),
				                            SDIO_FUNC_2,
				                            F2SYNC, rxbuf, rdlen,
				                            pkt, NULL, NULL);
				bus->f2rxdata++;
				ASSERT(sdret != BCME_PENDING);

				if (sdret < 0) {
					DHD_ERROR(("%s (nextlen): read %d bytes failed: %d\n",
					   __FUNCTION__, rdlen, sdret));
					PKTFREE(bus->dhd->osh, pkt, FALSE);
					bus->dhd->rx_errors++;
					dhd_os_sdunlock_rxq(bus->dhd);
					/* Force retry w/normal header read.  Don't attemp NAK for
					 * gSPI
					 */
					dhdsdio_rxfail(bus, TRUE,
					      (bus->bus == SPI_BUS) ? FALSE : TRUE);
					continue;
				}
			}
			dhd_os_sdunlock_rxq(bus->dhd);

			/* Now check the header */
			bcopy(rxbuf, bus->rxhdr, SDPCM_HDRLEN);

			/* Extract hardware header fields */
			len = ltoh16_ua(bus->rxhdr);
			check = ltoh16_ua(bus->rxhdr + sizeof(uint16));

			/* All zeros means readahead info was bad */
			if (!(len|check)) {
				DHD_INFO(("%s (nextlen): read zeros in HW header???\n",
				           __FUNCTION__));
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE2();
				dhd_os_sdunlock_rxq(bus->dhd);
				GSPI_PR55150_BAILOUT;
				continue;
			}

			/* Validate check bytes */
			if ((uint16)~(len^check)) {
				DHD_ERROR(("%s (nextlen): HW hdr error: nextlen/len/check"
				           " 0x%04x/0x%04x/0x%04x\n", __FUNCTION__, nextlen,
				           len, check));
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE2();
				dhd_os_sdunlock_rxq(bus->dhd);
				bus->rx_badhdr++;
				dhdsdio_rxfail(bus, FALSE, FALSE);
				GSPI_PR55150_BAILOUT;
				continue;
			}

			/* Validate frame length */
			if (len < SDPCM_HDRLEN) {
				DHD_ERROR(("%s (nextlen): HW hdr length invalid: %d\n",
				           __FUNCTION__, len));
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE2();
				dhd_os_sdunlock_rxq(bus->dhd);
				GSPI_PR55150_BAILOUT;
				continue;
			}

			/* Check for consistency with readahead info */
				len_consistent = (nextlen != (ROUNDUP(len, 16) >> 4));
			if (len_consistent) {
				/* Mismatch, force retry w/normal header (may be >4K) */
				DHD_ERROR(("%s (nextlen): mismatch, nextlen %d len %d rnd %d; "
				           "expected rxseq %d\n",
				           __FUNCTION__, nextlen, len, ROUNDUP(len, 16), rxseq));
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE2();
				dhd_os_sdunlock_rxq(bus->dhd);
				dhdsdio_rxfail(bus, TRUE, (bus->bus == SPI_BUS) ? FALSE : TRUE);
				GSPI_PR55150_BAILOUT;
				continue;
			}


			/* Extract software header fields */
			chan = SDPCM_PACKET_CHANNEL(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
			seq = SDPCM_PACKET_SEQUENCE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
			doff = SDPCM_DOFFSET_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
			txmax = SDPCM_WINDOW_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);

				bus->nextlen =
				         bus->rxhdr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
				if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
					DHD_INFO(("%s (nextlen): got frame w/nextlen too large"
					          " (%d), seq %d\n", __FUNCTION__, bus->nextlen,
					          seq));
					bus->nextlen = 0;
				}

				bus->dhd->rx_readahead_cnt ++;
			/* Handle Flow Control */
			fcbits = SDPCM_FCMASK_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);

			delta = 0;
			if (~bus->flowcontrol & fcbits) {
				bus->fc_xoff++;
				delta = 1;
			}
			if (bus->flowcontrol & ~fcbits) {
				bus->fc_xon++;
				delta = 1;
			}

			if (delta) {
				bus->fc_rcvd++;
				bus->flowcontrol = fcbits;
			}

			/* Check and update sequence number */
			if (rxseq != seq) {
				DHD_INFO(("%s (nextlen): rx_seq %d, expected %d\n",
				          __FUNCTION__, seq, rxseq));
				bus->rx_badseq++;
				rxseq = seq;
			}

			/* Check window for sanity */
			if ((uint8)(txmax - bus->tx_seq) > 0x40) {
					DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
						__FUNCTION__, txmax, bus->tx_seq));
					txmax = bus->tx_seq + 2;
			}
			bus->tx_max = txmax;

#ifdef DHD_DEBUG
			if (DHD_BYTES_ON() && DHD_DATA_ON()) {
				prhex("Rx Data", rxbuf, len);
			} else if (DHD_HDRS_ON()) {
				prhex("RxHdr", bus->rxhdr, SDPCM_HDRLEN);
			}
#endif

			if (chan == SDPCM_CONTROL_CHANNEL) {
				if (bus->bus == SPI_BUS) {
					dhdsdio_read_control(bus, rxbuf, len, doff);
					if (bus->usebufpool) {
						dhd_os_sdlock_rxq(bus->dhd);
						PKTFREE(bus->dhd->osh, pkt, FALSE);
						dhd_os_sdunlock_rxq(bus->dhd);
					}
					continue;
				} else {
					DHD_ERROR(("%s (nextlen): readahead on control"
					           " packet %d?\n", __FUNCTION__, seq));
					/* Force retry w/normal header read */
					bus->nextlen = 0;
					dhdsdio_rxfail(bus, FALSE, TRUE);
					dhd_os_sdlock_rxq(bus->dhd);
					PKTFREE2();
					dhd_os_sdunlock_rxq(bus->dhd);
					continue;
				}
			}

			if ((bus->bus == SPI_BUS) && !bus->usebufpool) {
				DHD_ERROR(("Received %d bytes on %d channel. Running out of "
				           "rx pktbuf's or not yet malloced.\n", len, chan));
				continue;
			}

			/* Validate data offset */
			if ((doff < SDPCM_HDRLEN) || (doff > len)) {
				DHD_ERROR(("%s (nextlen): bad data offset %d: HW len %d min %d\n",
				           __FUNCTION__, doff, len, SDPCM_HDRLEN));
				dhd_os_sdlock_rxq(bus->dhd);
				PKTFREE2();
				dhd_os_sdunlock_rxq(bus->dhd);
				ASSERT(0);
				dhdsdio_rxfail(bus, FALSE, FALSE);
				continue;
			}

			/* All done with this one -- now deliver the packet */
			goto deliver;
		}
		/* gSPI frames should not be handled in fractions */
		if (bus->bus == SPI_BUS) {
			break;
		}

		/* Read frame header (hardware and software) */
		sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
		                            bus->rxhdr, firstread, NULL, NULL, NULL);
		bus->f2rxhdrs++;
		ASSERT(sdret != BCME_PENDING);

		if (sdret < 0) {
			DHD_ERROR(("%s: RXHEADER FAILED: %d\n", __FUNCTION__, sdret));
			bus->rx_hdrfail++;
			dhdsdio_rxfail(bus, TRUE, TRUE);
			continue;
		}

#ifdef DHD_DEBUG
		if (DHD_BYTES_ON() || DHD_HDRS_ON()) {
			prhex("RxHdr", bus->rxhdr, SDPCM_HDRLEN);
		}
#endif

		/* Extract hardware header fields */
		len = ltoh16_ua(bus->rxhdr);
		check = ltoh16_ua(bus->rxhdr + sizeof(uint16));

		/* All zeros means no more frames */
		if (!(len|check)) {
			*finished = TRUE;
			break;
		}

		/* Validate check bytes */
		if ((uint16)~(len^check)) {
			DHD_ERROR(("%s: HW hdr error: len/check 0x%04x/0x%04x\n",
			           __FUNCTION__, len, check));
			bus->rx_badhdr++;
			dhdsdio_rxfail(bus, FALSE, FALSE);
			continue;
		}

		/* Validate frame length */
		if (len < SDPCM_HDRLEN) {
			DHD_ERROR(("%s: HW hdr length invalid: %d\n", __FUNCTION__, len));
			continue;
		}

		/* Extract software header fields */
		chan = SDPCM_PACKET_CHANNEL(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
		seq = SDPCM_PACKET_SEQUENCE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
		doff = SDPCM_DOFFSET_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);
		txmax = SDPCM_WINDOW_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);

		/* Validate data offset */
		if ((doff < SDPCM_HDRLEN) || (doff > len)) {
			DHD_ERROR(("%s: Bad data offset %d: HW len %d, min %d seq %d\n",
			           __FUNCTION__, doff, len, SDPCM_HDRLEN, seq));
			bus->rx_badhdr++;
			ASSERT(0);
			dhdsdio_rxfail(bus, FALSE, FALSE);
			continue;
		}

		/* Save the readahead length if there is one */
		bus->nextlen = bus->rxhdr[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET];
		if ((bus->nextlen << 4) > MAX_RX_DATASZ) {
			DHD_INFO(("%s (nextlen): got frame w/nextlen too large (%d), seq %d\n",
			          __FUNCTION__, bus->nextlen, seq));
			bus->nextlen = 0;
		}

		/* Handle Flow Control */
		fcbits = SDPCM_FCMASK_VALUE(&bus->rxhdr[SDPCM_FRAMETAG_LEN]);

		delta = 0;
		if (~bus->flowcontrol & fcbits) {
			bus->fc_xoff++;
			delta = 1;
		}
		if (bus->flowcontrol & ~fcbits) {
			bus->fc_xon++;
			delta = 1;
		}

		if (delta) {
			bus->fc_rcvd++;
			bus->flowcontrol = fcbits;
		}

		/* Check and update sequence number */
		if (rxseq != seq) {
			DHD_INFO(("%s: rx_seq %d, expected %d\n", __FUNCTION__, seq, rxseq));
			bus->rx_badseq++;
			rxseq = seq;
		}

		/* Check window for sanity */
		if ((uint8)(txmax - bus->tx_seq) > 0x40) {
			DHD_ERROR(("%s: got unlikely tx max %d with tx_seq %d\n",
			           __FUNCTION__, txmax, bus->tx_seq));
			txmax = bus->tx_seq + 2;
		}
		bus->tx_max = txmax;

		/* Call a separate function for control frames */
		if (chan == SDPCM_CONTROL_CHANNEL) {
			dhdsdio_read_control(bus, bus->rxhdr, len, doff);
			continue;
		}

		ASSERT((chan == SDPCM_DATA_CHANNEL) || (chan == SDPCM_EVENT_CHANNEL) ||
		       (chan == SDPCM_TEST_CHANNEL) || (chan == SDPCM_GLOM_CHANNEL));

		/* Length to read */
		rdlen = (len > firstread) ? (len - firstread) : 0;

		/* May pad read to blocksize for efficiency */
		if (bus->roundup && bus->blocksize && (rdlen > bus->blocksize)) {
			pad = bus->blocksize - (rdlen % bus->blocksize);
			if ((pad <= bus->roundup) && (pad < bus->blocksize) &&
			    ((rdlen + pad + firstread) < MAX_RX_DATASZ))
				rdlen += pad;
		} else if (rdlen % DHD_SDALIGN) {
			rdlen += DHD_SDALIGN - (rdlen % DHD_SDALIGN);
		}

		/* Satisfy length-alignment requirements */
		if (forcealign && (rdlen & (ALIGNMENT - 1)))
			rdlen = ROUNDUP(rdlen, ALIGNMENT);

		if ((rdlen + firstread) > MAX_RX_DATASZ) {
			/* Too long -- skip this frame */
			DHD_ERROR(("%s: too long: len %d rdlen %d\n", __FUNCTION__, len, rdlen));
			bus->dhd->rx_errors++; bus->rx_toolong++;
			dhdsdio_rxfail(bus, FALSE, FALSE);
			continue;
		}

		dhd_os_sdlock_rxq(bus->dhd);
		if (!(pkt = PKTGET(osh, (rdlen + firstread + DHD_SDALIGN), FALSE))) {
			/* Give up on data, request rtx of events */
			DHD_ERROR(("%s: PKTGET failed: rdlen %d chan %d\n",
			           __FUNCTION__, rdlen, chan));
			bus->dhd->rx_dropped++;
			dhd_os_sdunlock_rxq(bus->dhd);
			dhdsdio_rxfail(bus, FALSE, RETRYCHAN(chan));
			continue;
		}
		dhd_os_sdunlock_rxq(bus->dhd);

		ASSERT(!PKTLINK(pkt));

		/* Leave room for what we already read, and align remainder */
		ASSERT(firstread < (PKTLEN(osh, pkt)));
		PKTPULL(osh, pkt, firstread);
		PKTALIGN(osh, pkt, rdlen, DHD_SDALIGN);

		/* Read the remaining frame data */
		sdret = dhd_bcmsdh_recv_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
		                            ((uint8 *)PKTDATA(osh, pkt)), rdlen, pkt, NULL, NULL);
		bus->f2rxdata++;
		ASSERT(sdret != BCME_PENDING);

		if (sdret < 0) {
			DHD_ERROR(("%s: read %d %s bytes failed: %d\n", __FUNCTION__, rdlen,
			           ((chan == SDPCM_EVENT_CHANNEL) ? "event" :
			            ((chan == SDPCM_DATA_CHANNEL) ? "data" : "test")), sdret));
			dhd_os_sdlock_rxq(bus->dhd);
			PKTFREE(bus->dhd->osh, pkt, FALSE);
			dhd_os_sdunlock_rxq(bus->dhd);
			bus->dhd->rx_errors++;
			dhdsdio_rxfail(bus, TRUE, RETRYCHAN(chan));
			continue;
		}

		/* Copy the already-read portion */
		PKTPUSH(osh, pkt, firstread);
		bcopy(bus->rxhdr, PKTDATA(osh, pkt), firstread);

#ifdef DHD_DEBUG
		if (DHD_BYTES_ON() && DHD_DATA_ON()) {
			prhex("Rx Data", PKTDATA(osh, pkt), len);
		}
#endif

deliver:
		/* Save superframe descriptor and allocate packet frame */
		if (chan == SDPCM_GLOM_CHANNEL) {
			if (SDPCM_GLOMDESC(&bus->rxhdr[SDPCM_FRAMETAG_LEN])) {
				DHD_GLOM(("%s: got glom descriptor, %d bytes:\n",
				          __FUNCTION__, len));
#ifdef DHD_DEBUG
				if (DHD_GLOM_ON()) {
					prhex("Glom Data", PKTDATA(osh, pkt), len);
				}
#endif
				PKTSETLEN(osh, pkt, len);
				ASSERT(doff == SDPCM_HDRLEN);
				PKTPULL(osh, pkt, SDPCM_HDRLEN);
				bus->glomd = pkt;
			} else {
				DHD_ERROR(("%s: glom superframe w/o descriptor!\n", __FUNCTION__));
				dhdsdio_rxfail(bus, FALSE, FALSE);
			}
			continue;
		}

		/* Fill in packet len and prio, deliver upward */
		PKTSETLEN(osh, pkt, len);
		PKTPULL(osh, pkt, doff);

#ifdef SDTEST
		/* Test channel packets are processed separately */
		if (chan == SDPCM_TEST_CHANNEL) {
			dhdsdio_testrcv(bus, pkt, seq);
			continue;
		}
#endif /* SDTEST */

		if (PKTLEN(osh, pkt) == 0) {
			dhd_os_sdlock_rxq(bus->dhd);
			PKTFREE(bus->dhd->osh, pkt, FALSE);
			dhd_os_sdunlock_rxq(bus->dhd);
			continue;
		} else if (dhd_prot_hdrpull(bus->dhd, &ifidx, pkt) != 0) {
			DHD_ERROR(("%s: rx protocol error\n", __FUNCTION__));
			dhd_os_sdlock_rxq(bus->dhd);
			PKTFREE(bus->dhd->osh, pkt, FALSE);
			dhd_os_sdunlock_rxq(bus->dhd);
			bus->dhd->rx_errors++;
			continue;
		}


		/* Unlock during rx call */
		dhd_os_sdunlock(bus->dhd);
		dhd_rx_frame(bus->dhd, ifidx, pkt, 1);
		dhd_os_sdlock(bus->dhd);
	}
	rxcount = maxframes - rxleft;
#ifdef DHD_DEBUG
	/* Message if we hit the limit */
	if (!rxleft && !sdtest)
		DHD_DATA(("%s: hit rx limit of %d frames\n", __FUNCTION__, maxframes));
	else
#endif /* DHD_DEBUG */
	DHD_DATA(("%s: processed %d frames\n", __FUNCTION__, rxcount));
	/* Back off rxseq if awaiting rtx, update rx_seq */
	if (bus->rxskip)
		rxseq--;
	bus->rx_seq = rxseq;

	return rxcount;
}

static uint32
dhdsdio_hostmail(dhd_bus_t *bus)
{
	sdpcmd_regs_t *regs = bus->regs;
	uint32 intstatus = 0;
	uint32 hmb_data;
	uint8 fcbits;
	uint retries = 0;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Read mailbox data and ack that we did so */
	R_SDREG(hmb_data, &regs->tohostmailboxdata, retries);
	if (retries <= retry_limit)
		W_SDREG(SMB_INT_ACK, &regs->tosbmailbox, retries);
	bus->f1regdata += 2;

	/* Dongle recomposed rx frames, accept them again */
	if (hmb_data & HMB_DATA_NAKHANDLED) {
		DHD_INFO(("Dongle reports NAK handled, expect rtx of %d\n", bus->rx_seq));
		if (!bus->rxskip) {
			DHD_ERROR(("%s: unexpected NAKHANDLED!\n", __FUNCTION__));
		}
		bus->rxskip = FALSE;
		intstatus |= I_HMB_FRAME_IND;
	}

	/*
	 * DEVREADY does not occur with gSPI.
	 */
	if (hmb_data & (HMB_DATA_DEVREADY | HMB_DATA_FWREADY)) {
		bus->sdpcm_ver = (hmb_data & HMB_DATA_VERSION_MASK) >> HMB_DATA_VERSION_SHIFT;
		if (bus->sdpcm_ver != SDPCM_PROT_VERSION)
			DHD_ERROR(("Version mismatch, dongle reports %d, expecting %d\n",
			           bus->sdpcm_ver, SDPCM_PROT_VERSION));
		else
			DHD_INFO(("Dongle ready, protocol version %d\n", bus->sdpcm_ver));
	}

	/*
	 * Flow Control has been moved into the RX headers and this out of band
	 * method isn't used any more.  Leae this here for possibly remaining backward
	 * compatible with older dongles
	 */
	if (hmb_data & HMB_DATA_FC) {
		fcbits = (hmb_data & HMB_DATA_FCDATA_MASK) >> HMB_DATA_FCDATA_SHIFT;

		if (fcbits & ~bus->flowcontrol)
			bus->fc_xoff++;
		if (bus->flowcontrol & ~fcbits)
			bus->fc_xon++;

		bus->fc_rcvd++;
		bus->flowcontrol = fcbits;
	}

	/* Shouldn't be any others */
	if (hmb_data & ~(HMB_DATA_DEVREADY |
	                 HMB_DATA_NAKHANDLED |
	                 HMB_DATA_FC |
	                 HMB_DATA_FWREADY |
	                 HMB_DATA_FCDATA_MASK |
	                 HMB_DATA_VERSION_MASK)) {
		DHD_ERROR(("Unknown mailbox data content: 0x%02x\n", hmb_data));
	}

	return intstatus;
}

bool
dhdsdio_dpc(dhd_bus_t *bus)
{
	bcmsdh_info_t *sdh = bus->sdh;
	sdpcmd_regs_t *regs = bus->regs;
	uint32 intstatus, newstatus = 0;
	uint retries = 0;
	uint rxlimit = dhd_rxbound; /* Rx frames to read before resched */
	uint txlimit = dhd_txbound; /* Tx frames to send before resched */
	uint framecnt = 0;		  /* Temporary counter of tx/rx frames */
	bool rxdone = TRUE;		  /* Flag for no more read data */
	bool resched = FALSE;	  /* Flag indicating resched wanted */

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Start with leftover status bits */
	intstatus = bus->intstatus;

	dhd_os_sdlock(bus->dhd);

	/* If waiting for HTAVAIL, check status */
	if (bus->clkstate == CLK_PENDING) {
		int err;
		uint8 clkctl, devctl = 0;

#ifdef DHD_DEBUG
		/* Check for inconsistent device control */
		devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
		if (err) {
			DHD_ERROR(("%s: error reading DEVCTL: %d\n", __FUNCTION__, err));
			bus->dhd->busstate = DHD_BUS_DOWN;
		} else {
			ASSERT(devctl & SBSDIO_DEVCTL_CA_INT_ONLY);
		}
#endif /* DHD_DEBUG */

		/* Read CSR, if clock on switch to AVAIL, else ignore */
		clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);
		if (err) {
			DHD_ERROR(("%s: error reading CSR: %d\n", __FUNCTION__, err));
			bus->dhd->busstate = DHD_BUS_DOWN;
		}

		DHD_INFO(("DPC: PENDING, devctl 0x%02x clkctl 0x%02x\n", devctl, clkctl));

		if (SBSDIO_HTAV(clkctl)) {
			devctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, &err);
			if (err) {
				DHD_ERROR(("%s: error reading DEVCTL: %d\n",
				           __FUNCTION__, err));
				bus->dhd->busstate = DHD_BUS_DOWN;
			}
			devctl &= ~SBSDIO_DEVCTL_CA_INT_ONLY;
			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_DEVICE_CTL, devctl, &err);
			if (err) {
				DHD_ERROR(("%s: error writing DEVCTL: %d\n",
				           __FUNCTION__, err));
				bus->dhd->busstate = DHD_BUS_DOWN;
			}
			bus->clkstate = CLK_AVAIL;
		} else {
			goto clkwait;
		}
	}

	BUS_WAKE(bus);

	/* Make sure backplane clock is on */
	dhdsdio_clkctl(bus, CLK_AVAIL, TRUE);
	if (bus->clkstate == CLK_PENDING)
		goto clkwait;

	/* Pending interrupt indicates new device status */
	if (bus->ipend) {
		bus->ipend = FALSE;
		R_SDREG(newstatus, &regs->intstatus, retries);
		bus->f1regdata++;
		if (bcmsdh_regfail(bus->sdh))
			newstatus = 0;
		newstatus &= bus->hostintmask;
		bus->fcstate = !!(newstatus & I_HMB_FC_STATE);
		if (newstatus) {
			W_SDREG(newstatus, &regs->intstatus, retries);
			bus->f1regdata++;
		}
	}

	/* Merge new bits with previous */
	intstatus |= newstatus;
	bus->intstatus = 0;

	/* Handle flow-control change: read new state in case our ack
	 * crossed another change interrupt.  If change still set, assume
	 * FC ON for safety, let next loop through do the debounce.
	 */
	if (intstatus & I_HMB_FC_CHANGE) {
		intstatus &= ~I_HMB_FC_CHANGE;
		W_SDREG(I_HMB_FC_CHANGE, &regs->intstatus, retries);
		R_SDREG(newstatus, &regs->intstatus, retries);
		bus->f1regdata += 2;
		bus->fcstate = !!(newstatus & (I_HMB_FC_STATE | I_HMB_FC_CHANGE));
		intstatus |= (newstatus & bus->hostintmask);
	}

	/* Handle host mailbox indication */
	if (intstatus & I_HMB_HOST_INT) {
		intstatus &= ~I_HMB_HOST_INT;
		intstatus |= dhdsdio_hostmail(bus);
	}

	/* Generally don't ask for these, can get CRC errors... */
	if (intstatus & I_WR_OOSYNC) {
		DHD_ERROR(("Dongle reports WR_OOSYNC\n"));
		intstatus &= ~I_WR_OOSYNC;
	}

	if (intstatus & I_RD_OOSYNC) {
		DHD_ERROR(("Dongle reports RD_OOSYNC\n"));
		intstatus &= ~I_RD_OOSYNC;
	}

	if (intstatus & I_SBINT) {
		DHD_ERROR(("Dongle reports SBINT\n"));
		intstatus &= ~I_SBINT;
	}

	/* Would be active due to wake-wlan in gSPI */
	if (intstatus & I_CHIPACTIVE) {
		DHD_INFO(("Dongle reports CHIPACTIVE\n"));
		intstatus &= ~I_CHIPACTIVE;
	}

	/* Ignore frame indications if rxskip is set */
	if (bus->rxskip)
		intstatus &= ~I_HMB_FRAME_IND;

	/* On frame indication, read available frames */
	if (PKT_AVAILABLE()) {
		framecnt = dhdsdio_readframes(bus, rxlimit, &rxdone);
		if (rxdone || bus->rxskip)
			intstatus &= ~I_HMB_FRAME_IND;
		rxlimit -= MIN(framecnt, rxlimit);
	}

	/* Keep still-pending events for next scheduling */
	bus->intstatus = intstatus;

clkwait:
	/* Re-enable interrupts to detect new device events (mailbox, rx frame)
	 * or clock availability.  (Allows tx loop to check ipend if desired.)
	 * (Unless register access seems hosed, as we may not be able to ACK...)
	 */
	if (bus->intr && bus->intdis && !bcmsdh_regfail(sdh)) {
		DHD_INTR(("%s: enable SDIO interrupts, rxdone %d framecnt %d\n",
		          __FUNCTION__, rxdone, framecnt));
		bus->intdis = FALSE;
#if defined(OOB_INTR_ONLY)
		bcmsdh_oob_intr_set(1);
#endif /* (OOB_INTR_ONLY) */
		bcmsdh_intr_enable(sdh);
	}

	if (DATAOK(bus) && bus->ctrl_frame_stat && (bus->clkstate == CLK_AVAIL)) {
		int ret, i;

		ret = dhd_bcmsdh_send_buf(bus, bcmsdh_cur_sbwad(sdh), SDIO_FUNC_2, F2SYNC,
		                      (uint8 *)bus->ctrl_frame_buf, (uint32)bus->ctrl_frame_len,
			NULL, NULL, NULL);
		ASSERT(ret != BCME_PENDING);

		if (ret < 0) {
			/* On failure, abort the command and terminate the frame */
			DHD_INFO(("%s: sdio error %d, abort command and terminate frame.\n",
			          __FUNCTION__, ret));
			bus->tx_sderrs++;

			bcmsdh_abort(sdh, SDIO_FUNC_2);

			bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_FRAMECTRL,
			                 SFC_WF_TERM, NULL);
			bus->f1regdata++;

			for (i = 0; i < 3; i++) {
				uint8 hi, lo;
				hi = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
				                     SBSDIO_FUNC1_WFRAMEBCHI, NULL);
				lo = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
				                     SBSDIO_FUNC1_WFRAMEBCLO, NULL);
				bus->f1regdata += 2;
				if ((hi == 0) && (lo == 0))
					break;
			}

		}
		if (ret == 0) {
				bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP;
		}

		printf("Return_dpc value is : %d\n", ret);
		bus->ctrl_frame_stat = FALSE;
		dhd_wait_event_wakeup(bus->dhd);
	}
	/* Send queued frames (limit 1 if rx may still be pending) */
	else if ((bus->clkstate == CLK_AVAIL) && !bus->fcstate &&
	    pktq_mlen(&bus->txq, ~bus->flowcontrol) && txlimit && DATAOK(bus)) {
		framecnt = rxdone ? txlimit : MIN(txlimit, dhd_txminmax);
		framecnt = dhdsdio_sendfromq(bus, framecnt);
		txlimit -= framecnt;
	}

	/* Resched if events or tx frames are pending, else await next interrupt */
	/* On failed register access, all bets are off: no resched or interrupts */
	if ((bus->dhd->busstate == DHD_BUS_DOWN) || bcmsdh_regfail(sdh)) {
		DHD_ERROR(("%s: failed backplane access over SDIO, halting operation %d \n",
		           __FUNCTION__, bcmsdh_regfail(sdh)));
		bus->dhd->busstate = DHD_BUS_DOWN;
		bus->intstatus = 0;
	} else if (bus->clkstate == CLK_PENDING) {
		DHD_INFO(("%s: rescheduled due to CLK_PENDING awaiting \
			I_CHIPACTIVE interrupt", __FUNCTION__));
			resched = TRUE;
	} else if (bus->intstatus || bus->ipend ||
	           (!bus->fcstate && pktq_mlen(&bus->txq, ~bus->flowcontrol) && DATAOK(bus)) ||
			PKT_AVAILABLE()) {  /* Read multiple frames */
		resched = TRUE;
	}


	bus->dpc_sched = resched;

	/* If we're done for now, turn off clock request. */
	if ((bus->clkstate != CLK_PENDING) && bus->idletime == DHD_IDLE_IMMEDIATE) {
		bus->activity = FALSE;
		dhdsdio_clkctl(bus, CLK_NONE, FALSE);
	}

	dhd_os_sdunlock(bus->dhd);

	return resched;
}

bool
dhd_bus_dpc(struct dhd_bus *bus)
{
	bool resched;

	/* Call the DPC directly. */
	DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __FUNCTION__));
	resched = dhdsdio_dpc(bus);

	return resched;
}

void
dhdsdio_isr(void *arg)
{
	dhd_bus_t *bus = (dhd_bus_t*)arg;
	bcmsdh_info_t *sdh;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (!bus) {
		DHD_ERROR(("%s : bus is null pointer , exit \n", __FUNCTION__));
		return;
	}
	sdh = bus->sdh;

	if (bus->dhd->busstate == DHD_BUS_DOWN) {
		DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__));
		return;
	}
	/* Count the interrupt call */
	bus->intrcount++;
	bus->ipend = TRUE;

	/* Shouldn't get this interrupt if we're sleeping? */
	if (bus->sleeping) {
		DHD_ERROR(("INTERRUPT WHILE SLEEPING??\n"));
		return;
	}

	/* Disable additional interrupts (is this needed now)? */
	if (bus->intr) {
		DHD_INTR(("%s: disable SDIO interrupts\n", __FUNCTION__));
	} else {
		DHD_ERROR(("dhdsdio_isr() w/o interrupt configured!\n"));
	}

	bcmsdh_intr_disable(sdh);
	bus->intdis = TRUE;

#if defined(SDIO_ISR_THREAD)
	DHD_TRACE(("Calling dhdsdio_dpc() from %s\n", __FUNCTION__));
	while (dhdsdio_dpc(bus));
#else
	bus->dpc_sched = TRUE;
	dhd_sched_dpc(bus->dhd);
#endif 


}

#ifdef SDTEST
static void
dhdsdio_pktgen_init(dhd_bus_t *bus)
{
	/* Default to specified length, or full range */
	if (dhd_pktgen_len) {
		bus->pktgen_maxlen = MIN(dhd_pktgen_len, MAX_PKTGEN_LEN);
		bus->pktgen_minlen = bus->pktgen_maxlen;
	} else {
		bus->pktgen_maxlen = MAX_PKTGEN_LEN;
		bus->pktgen_minlen = 0;
	}
	bus->pktgen_len = (uint16)bus->pktgen_minlen;

	/* Default to per-watchdog burst with 10s print time */
	bus->pktgen_freq = 1;
	bus->pktgen_print = 10000 / dhd_watchdog_ms;
	bus->pktgen_count = (dhd_pktgen * dhd_watchdog_ms + 999) / 1000;

	/* Default to echo mode */
	bus->pktgen_mode = DHD_PKTGEN_ECHO;
	bus->pktgen_stop = 1;
}

static void
dhdsdio_pktgen(dhd_bus_t *bus)
{
	void *pkt;
	uint8 *data;
	uint pktcount;
	uint fillbyte;
	osl_t *osh = bus->dhd->osh;
	uint16 len;

	/* Display current count if appropriate */
	if (bus->pktgen_print && (++bus->pktgen_ptick >= bus->pktgen_print)) {
		bus->pktgen_ptick = 0;
		printf("%s: send attempts %d rcvd %d\n",
		       __FUNCTION__, bus->pktgen_sent, bus->pktgen_rcvd);
	}

	/* For recv mode, just make sure dongle has started sending */
	if (bus->pktgen_mode == DHD_PKTGEN_RECV) {
		if (!bus->pktgen_rcvd)
			dhdsdio_sdtest_set(bus, TRUE);
		return;
	}

	/* Otherwise, generate or request the specified number of packets */
	for (pktcount = 0; pktcount < bus->pktgen_count; pktcount++) {
		/* Stop if total has been reached */
		if (bus->pktgen_total && (bus->pktgen_sent >= bus->pktgen_total)) {
			bus->pktgen_count = 0;
			break;
		}

		/* Allocate an appropriate-sized packet */
		len = bus->pktgen_len;
		if (!(pkt = PKTGET(osh, (len + SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN),
		                   TRUE))) {;
			DHD_ERROR(("%s: PKTGET failed!\n", __FUNCTION__));
			break;
		}
		PKTALIGN(osh, pkt, (len + SDPCM_HDRLEN + SDPCM_TEST_HDRLEN), DHD_SDALIGN);
		data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;

		/* Write test header cmd and extra based on mode */
		switch (bus->pktgen_mode) {
		case DHD_PKTGEN_ECHO:
			*data++ = SDPCM_TEST_ECHOREQ;
			*data++ = (uint8)bus->pktgen_sent;
			break;

		case DHD_PKTGEN_SEND:
			*data++ = SDPCM_TEST_DISCARD;
			*data++ = (uint8)bus->pktgen_sent;
			break;

		case DHD_PKTGEN_RXBURST:
			*data++ = SDPCM_TEST_BURST;
			*data++ = (uint8)bus->pktgen_count;
			break;

		default:
			DHD_ERROR(("Unrecognized pktgen mode %d\n", bus->pktgen_mode));
			PKTFREE(osh, pkt, TRUE);
			bus->pktgen_count = 0;
			return;
		}

		/* Write test header length field */
		*data++ = (len >> 0);
		*data++ = (len >> 8);

		/* Then fill in the remainder -- N/A for burst, but who cares... */
		for (fillbyte = 0; fillbyte < len; fillbyte++)
			*data++ = SDPCM_TEST_FILL(fillbyte, (uint8)bus->pktgen_sent);

#ifdef DHD_DEBUG
		if (DHD_BYTES_ON() && DHD_DATA_ON()) {
			data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;
			prhex("dhdsdio_pktgen: Tx Data", data, PKTLEN(osh, pkt) - SDPCM_HDRLEN);
		}
#endif

		/* Send it */
		if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE)) {
			bus->pktgen_fail++;
			if (bus->pktgen_stop && bus->pktgen_stop == bus->pktgen_fail)
				bus->pktgen_count = 0;
		}
		bus->pktgen_sent++;

		/* Bump length if not fixed, wrap at max */
		if (++bus->pktgen_len > bus->pktgen_maxlen)
			bus->pktgen_len = (uint16)bus->pktgen_minlen;

		/* Special case for burst mode: just send one request! */
		if (bus->pktgen_mode == DHD_PKTGEN_RXBURST)
			break;
	}
}

static void
dhdsdio_sdtest_set(dhd_bus_t *bus, bool start)
{
	void *pkt;
	uint8 *data;
	osl_t *osh = bus->dhd->osh;

	/* Allocate the packet */
	if (!(pkt = PKTGET(osh, SDPCM_HDRLEN + SDPCM_TEST_HDRLEN + DHD_SDALIGN, TRUE))) {
		DHD_ERROR(("%s: PKTGET failed!\n", __FUNCTION__));
		return;
	}
	PKTALIGN(osh, pkt, (SDPCM_HDRLEN + SDPCM_TEST_HDRLEN), DHD_SDALIGN);
	data = (uint8*)PKTDATA(osh, pkt) + SDPCM_HDRLEN;

	/* Fill in the test header */
	*data++ = SDPCM_TEST_SEND;
	*data++ = start;
	*data++ = (bus->pktgen_maxlen >> 0);
	*data++ = (bus->pktgen_maxlen >> 8);

	/* Send it */
	if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE))
		bus->pktgen_fail++;
}


static void
dhdsdio_testrcv(dhd_bus_t *bus, void *pkt, uint seq)
{
	osl_t *osh = bus->dhd->osh;
	uint8 *data;
	uint pktlen;

	uint8 cmd;
	uint8 extra;
	uint16 len;
	uint16 offset;

	/* Check for min length */
	if ((pktlen = PKTLEN(osh, pkt)) < SDPCM_TEST_HDRLEN) {
		DHD_ERROR(("dhdsdio_restrcv: toss runt frame, pktlen %d\n", pktlen));
		PKTFREE(osh, pkt, FALSE);
		return;
	}

	/* Extract header fields */
	data = PKTDATA(osh, pkt);
	cmd = *data++;
	extra = *data++;
	len = *data++; len += *data++ << 8;

	/* Check length for relevant commands */
	if (cmd == SDPCM_TEST_DISCARD || cmd == SDPCM_TEST_ECHOREQ || cmd == SDPCM_TEST_ECHORSP) {
		if (pktlen != len + SDPCM_TEST_HDRLEN) {
			DHD_ERROR(("dhdsdio_testrcv: frame length mismatch, pktlen %d seq %d"
			           " cmd %d extra %d len %d\n", pktlen, seq, cmd, extra, len));
			PKTFREE(osh, pkt, FALSE);
			return;
		}
	}

	/* Process as per command */
	switch (cmd) {
	case SDPCM_TEST_ECHOREQ:
		/* Rx->Tx turnaround ok (even on NDIS w/current implementation) */
		*(uint8 *)(PKTDATA(osh, pkt)) = SDPCM_TEST_ECHORSP;
		if (dhdsdio_txpkt(bus, pkt, SDPCM_TEST_CHANNEL, TRUE) == 0) {
			bus->pktgen_sent++;
		} else {
			bus->pktgen_fail++;
			PKTFREE(osh, pkt, FALSE);
		}
		bus->pktgen_rcvd++;
		break;

	case SDPCM_TEST_ECHORSP:
		if (bus->ext_loop) {
			PKTFREE(osh, pkt, FALSE);
			bus->pktgen_rcvd++;
			break;
		}

		for (offset = 0; offset < len; offset++, data++) {
			if (*data != SDPCM_TEST_FILL(offset, extra)) {
				DHD_ERROR(("dhdsdio_testrcv: echo data mismatch: "
				           "offset %d (len %d) expect 0x%02x rcvd 0x%02x\n",
				           offset, len, SDPCM_TEST_FILL(offset, extra), *data));
				break;
			}
		}
		PKTFREE(osh, pkt, FALSE);
		bus->pktgen_rcvd++;
		break;

	case SDPCM_TEST_DISCARD:
		PKTFREE(osh, pkt, FALSE);
		bus->pktgen_rcvd++;
		break;

	case SDPCM_TEST_BURST:
	case SDPCM_TEST_SEND:
	default:
		DHD_INFO(("dhdsdio_testrcv: unsupported or unknown command, pktlen %d seq %d"
		          " cmd %d extra %d len %d\n", pktlen, seq, cmd, extra, len));
		PKTFREE(osh, pkt, FALSE);
		break;
	}

	/* For recv mode, stop at limie (and tell dongle to stop sending) */
	if (bus->pktgen_mode == DHD_PKTGEN_RECV) {
		if (bus->pktgen_total && (bus->pktgen_rcvd >= bus->pktgen_total)) {
			bus->pktgen_count = 0;
			dhdsdio_sdtest_set(bus, FALSE);
		}
	}
}
#endif /* SDTEST */

extern bool
dhd_bus_watchdog(dhd_pub_t *dhdp)
{
	dhd_bus_t *bus;

	DHD_TIMER(("%s: Enter\n", __FUNCTION__));

	bus = dhdp->bus;

	if (bus->dhd->dongle_reset)
		return FALSE;

	/* Ignore the timer if simulating bus down */
	if (bus->sleeping)
		return FALSE;


	/* Poll period: check device if appropriate. */
	if (bus->poll && (++bus->polltick >= bus->pollrate)) {
		uint32 intstatus = 0;

		/* Reset poll tick */
		bus->polltick = 0;

		/* Check device if no interrupts */
		if (!bus->intr || (bus->intrcount == bus->lastintrs)) {

			if (!bus->dpc_sched) {
				uint8 devpend;
				devpend = bcmsdh_cfg_read(bus->sdh, SDIO_FUNC_0,
				                          SDIOD_CCCR_INTPEND, NULL);
				intstatus = devpend & (INTR_STATUS_FUNC1 | INTR_STATUS_FUNC2);
			}

			/* If there is something, make like the ISR and schedule the DPC */
			if (intstatus) {
				bus->pollcnt++;
				bus->ipend = TRUE;
				if (bus->intr) {
					bcmsdh_intr_disable(bus->sdh);
				}
				bus->dpc_sched = TRUE;
				dhd_sched_dpc(bus->dhd);

			}
		}

		/* Update interrupt tracking */
		bus->lastintrs = bus->intrcount;
	}

#ifdef DHD_DEBUG
	/* Poll for console output periodically */
	if (dhdp->busstate == DHD_BUS_DATA && dhd_console_ms != 0) {
		bus->console.count += dhd_watchdog_ms;
		if (bus->console.count >= dhd_console_ms) {
			bus->console.count -= dhd_console_ms;
			/* Make sure backplane clock is on */
			dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
			if (dhdsdio_readconsole(bus) < 0)
				dhd_console_ms = 0;	/* On error, stop trying */
		}
	}
#endif /* DHD_DEBUG */

#ifdef SDTEST
	/* Generate packets if configured */
	if (bus->pktgen_count && (++bus->pktgen_tick >= bus->pktgen_freq)) {
		/* Make sure backplane clock is on */
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
		bus->pktgen_tick = 0;
		dhdsdio_pktgen(bus);
	}
#endif

	/* On idle timeout clear activity flag and/or turn off clock */
	if ((bus->idletime > 0) && (bus->clkstate == CLK_AVAIL)) {
		if (++bus->idlecount >= bus->idletime) {
			bus->idlecount = 0;
			if (bus->activity) {
				bus->activity = FALSE;
				dhdsdio_clkctl(bus, CLK_NONE, FALSE);
			}
		}
	}


	return bus->ipend;
}

#ifdef DHD_DEBUG
extern int
dhd_bus_console_in(dhd_pub_t *dhdp, uchar *msg, uint msglen)
{
	dhd_bus_t *bus = dhdp->bus;
	uint32 addr, val;
	int rv;
	void *pkt;

	/* Address could be zero if CONSOLE := 0 in dongle Makefile */
	if (bus->console_addr == 0)
		return BCME_UNSUPPORTED;

	/* Exclusive bus access */
	dhd_os_sdlock(bus->dhd);

	/* Don't allow input if dongle is in reset */
	if (bus->dhd->dongle_reset) {
		dhd_os_sdunlock(bus->dhd);
		return BCME_NOTREADY;
	}

	/* Request clock to allow SDIO accesses */
	BUS_WAKE(bus);
	/* No pend allowed since txpkt is called later, ht clk has to be on */
	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

	/* Zero cbuf_index */
	addr = bus->console_addr + OFFSETOF(hndrte_cons_t, cbuf_idx);
	val = htol32(0);
	if ((rv = dhdsdio_membytes(bus, TRUE, addr, (uint8 *)&val, sizeof(val))) < 0)
		goto done;

	/* Write message into cbuf */
	addr = bus->console_addr + OFFSETOF(hndrte_cons_t, cbuf);
	if ((rv = dhdsdio_membytes(bus, TRUE, addr, (uint8 *)msg, msglen)) < 0)
		goto done;

	/* Write length into vcons_in */
	addr = bus->console_addr + OFFSETOF(hndrte_cons_t, vcons_in);
	val = htol32(msglen);
	if ((rv = dhdsdio_membytes(bus, TRUE, addr, (uint8 *)&val, sizeof(val))) < 0)
		goto done;

	/* Bump dongle by sending an empty event pkt.
	 * sdpcm_sendup (RX) checks for virtual console input.
	 */
	if (((pkt = PKTGET(bus->dhd->osh, 4 + SDPCM_RESERVE, TRUE)) != NULL) &&
		bus->clkstate == CLK_AVAIL)
		dhdsdio_txpkt(bus, pkt, SDPCM_EVENT_CHANNEL, TRUE);

done:
	if ((bus->idletime == DHD_IDLE_IMMEDIATE) && !bus->dpc_sched) {
		bus->activity = FALSE;
		dhdsdio_clkctl(bus, CLK_NONE, TRUE);
	}

	dhd_os_sdunlock(bus->dhd);

	return rv;
}
#endif /* DHD_DEBUG */

#ifdef DHD_DEBUG
static void
dhd_dump_cis(uint fn, uint8 *cis)
{
	uint byte, tag, tdata;
	DHD_INFO(("Function %d CIS:\n", fn));

	for (tdata = byte = 0; byte < SBSDIO_CIS_SIZE_LIMIT; byte++) {
		if ((byte % 16) == 0)
			DHD_INFO(("    "));
		DHD_INFO(("%02x ", cis[byte]));
		if ((byte % 16) == 15)
			DHD_INFO(("\n"));
		if (!tdata--) {
			tag = cis[byte];
			if (tag == 0xff)
				break;
			else if (!tag)
				tdata = 0;
			else if ((byte + 1) < SBSDIO_CIS_SIZE_LIMIT)
				tdata = cis[byte + 1] + 1;
			else
				DHD_INFO(("]"));
		}
	}
	if ((byte % 16) != 15)
		DHD_INFO(("\n"));
}
#endif /* DHD_DEBUG */

static bool
dhdsdio_chipmatch(uint16 chipid)
{
	if (chipid == BCM4325_CHIP_ID)
		return TRUE;
	if (chipid == BCM4329_CHIP_ID)
		return TRUE;
	if (chipid == BCM4315_CHIP_ID)
		return TRUE;
	if (chipid == BCM4319_CHIP_ID)
		return TRUE;
	return FALSE;
}

static void *
dhdsdio_probe(uint16 venid, uint16 devid, uint16 bus_no, uint16 slot,
	uint16 func, uint bustype, void *regsva, osl_t * osh, void *sdh)
{
	int ret;
	dhd_bus_t *bus;

	/* Init global variables at run-time, not as part of the declaration.
	 * This is required to support init/de-init of the driver. Initialization
	 * of globals as part of the declaration results in non-deterministic
	 * behavior since the value of the globals may be different on the
	 * first time that the driver is initialized vs subsequent initializations.
	 */
	dhd_txbound = DHD_TXBOUND;
	dhd_rxbound = DHD_RXBOUND;
	dhd_alignctl = TRUE;
	sd1idle = TRUE;
	dhd_readahead = TRUE;
	retrydata = FALSE;
	dhd_doflow = FALSE;
	dhd_dongle_memsize = 0;
	dhd_txminmax = DHD_TXMINMAX;

	forcealign = TRUE;


	dhd_common_init();

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));
	DHD_INFO(("%s: venid 0x%04x devid 0x%04x\n", __FUNCTION__, venid, devid));

	/* We make assumptions about address window mappings */
	ASSERT((uintptr)regsva == SI_ENUM_BASE);

	/* BCMSDH passes venid and devid based on CIS parsing -- but low-power start
	 * means early parse could fail, so here we should get either an ID
	 * we recognize OR (-1) indicating we must request power first.
	 */
	/* Check the Vendor ID */
	switch (venid) {
		case 0x0000:
		case VENDOR_BROADCOM:
			break;
		default:
			DHD_ERROR(("%s: unknown vendor: 0x%04x\n",
			           __FUNCTION__, venid));
			return NULL;
	}

	/* Check the Device ID and make sure it's one that we support */
	switch (devid) {
		case BCM4325_D11DUAL_ID:		/* 4325 802.11a/g id */
		case BCM4325_D11G_ID:			/* 4325 802.11g 2.4Ghz band id */
		case BCM4325_D11A_ID:			/* 4325 802.11a 5Ghz band id */
			DHD_INFO(("%s: found 4325 Dongle\n", __FUNCTION__));
			break;
		case BCM4329_D11NDUAL_ID:		/* 4329 802.11n dualband device */
		case BCM4329_D11N2G_ID:		/* 4329 802.11n 2.4G device */
		case BCM4329_D11N5G_ID:		/* 4329 802.11n 5G device */
		case 0x4329:
			DHD_INFO(("%s: found 4329 Dongle\n", __FUNCTION__));
			break;
		case BCM4315_D11DUAL_ID:		/* 4315 802.11a/g id */
		case BCM4315_D11G_ID:			/* 4315 802.11g id */
		case BCM4315_D11A_ID:			/* 4315 802.11a id */
			DHD_INFO(("%s: found 4315 Dongle\n", __FUNCTION__));
			break;
		case BCM4319_D11N_ID:			/* 4319 802.11n id */
		case BCM4319_D11N2G_ID:			/* 4319 802.11n2g id */
		case BCM4319_D11N5G_ID:			/* 4319 802.11n5g id */
			DHD_INFO(("%s: found 4319 Dongle\n", __FUNCTION__));
			break;
		case 0:
			DHD_INFO(("%s: allow device id 0, will check chip internals\n",
			          __FUNCTION__));
			break;

		default:
			DHD_ERROR(("%s: skipping 0x%04x/0x%04x, not a dongle\n",
			           __FUNCTION__, venid, devid));
			return NULL;
	}

	if (osh == NULL) {
		/* Ask the OS interface part for an OSL handle */
		if (!(osh = dhd_osl_attach(sdh, DHD_BUS))) {
			DHD_ERROR(("%s: osl_attach failed!\n", __FUNCTION__));
			return NULL;
		}
	}

	/* Allocate private bus interface state */
	if (!(bus = MALLOC(osh, sizeof(dhd_bus_t)))) {
		DHD_ERROR(("%s: MALLOC of dhd_bus_t failed\n", __FUNCTION__));
		goto fail;
	}
	bzero(bus, sizeof(dhd_bus_t));
	bus->sdh = sdh;
	bus->cl_devid = (uint16)devid;
	bus->bus = DHD_BUS;
	bus->tx_seq = SDPCM_SEQUENCE_WRAP - 1;
	bus->usebufpool = FALSE; /* Use bufpool if allocated, else use locally malloced rxbuf */

	/* attempt to attach to the dongle */
	if (!(dhdsdio_probe_attach(bus, osh, sdh, regsva, devid))) {
		DHD_ERROR(("%s: dhdsdio_probe_attach failed\n", __FUNCTION__));
		goto fail;
	}

	/* Attach to the dhd/OS/network interface */
	if (!(bus->dhd = dhd_attach(osh, bus, SDPCM_RESERVE))) {
		DHD_ERROR(("%s: dhd_attach failed\n", __FUNCTION__));
		goto fail;
	}

	/* Allocate buffers */
	if (!(dhdsdio_probe_malloc(bus, osh, sdh))) {
		DHD_ERROR(("%s: dhdsdio_probe_malloc failed\n", __FUNCTION__));
		goto fail;
	}

	if (!(dhdsdio_probe_init(bus, osh, sdh))) {
		DHD_ERROR(("%s: dhdsdio_probe_init failed\n", __FUNCTION__));
		goto fail;
	}

	/* Register interrupt callback, but mask it (not operational yet). */
	DHD_INTR(("%s: disable SDIO interrupts (not interested yet)\n", __FUNCTION__));
	bcmsdh_intr_disable(sdh);
	if ((ret = bcmsdh_intr_reg(sdh, dhdsdio_isr, bus)) != 0) {
		DHD_ERROR(("%s: FAILED: bcmsdh_intr_reg returned %d\n",
		           __FUNCTION__, ret));
		goto fail;
	}
	DHD_INTR(("%s: registered SDIO interrupt function ok\n", __FUNCTION__));

	DHD_INFO(("%s: completed!!\n", __FUNCTION__));


	/* if firmware path present try to download and bring up bus */
	if ((ret = dhd_bus_start(bus->dhd)) != 0) {
		DHD_ERROR(("%s: failed\n", __FUNCTION__));
		goto fail;
		if (ret == BCME_NOTUP)  {
			DHD_ERROR(("%s: dongle is not responding\n", __FUNCTION__));
			goto fail;
		}
	}
	/* Ok, have the per-port tell the stack we're open for business */
	if (dhd_net_attach(bus->dhd, 0) != 0) {
		DHD_ERROR(("%s: Net attach failed!!\n", __FUNCTION__));
		goto fail;
	}

	return bus;

fail:
	dhdsdio_release(bus, osh);
	return NULL;
}


static bool
dhdsdio_probe_attach(struct dhd_bus *bus, osl_t *osh, void *sdh, void *regsva,
                    uint16 devid)
{
	uint8 clkctl = 0;
	int err = 0;

	bus->alp_only = TRUE;

	/* Return the window to backplane enumeration space for core access */
	if (dhdsdio_set_siaddr_window(bus, SI_ENUM_BASE)) {
		DHD_ERROR(("%s: FAILED to return to SI_ENUM_BASE\n", __FUNCTION__));
	}

#ifdef DHD_DEBUG
	printf("F1 signature read @0x18000000=0x%4x\n",
	       bcmsdh_reg_read(bus->sdh, SI_ENUM_BASE, 4));


#endif /* DHD_DEBUG */


	/* Force PLL off until si_attach() programs PLL control regs */



	bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, DHD_INIT_CLKCTL1, &err);
	if (!err)
		clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, &err);

	if (err || ((clkctl & ~SBSDIO_AVBITS) != DHD_INIT_CLKCTL1)) {
		DHD_ERROR(("dhdsdio_probe: ChipClkCSR access: err %d wrote 0x%02x read 0x%02x\n",
		           err, DHD_INIT_CLKCTL1, clkctl));
		goto fail;
	}

#ifdef DHD_DEBUG
	if (DHD_INFO_ON()) {
		uint fn, numfn;
		uint8 *cis[SDIOD_MAX_IOFUNCS];
		int err = 0;

		numfn = bcmsdh_query_iofnum(sdh);
		ASSERT(numfn <= SDIOD_MAX_IOFUNCS);

		/* Make sure ALP is available before trying to read CIS */
		SPINWAIT(((clkctl = bcmsdh_cfg_read(sdh, SDIO_FUNC_1,
		                                    SBSDIO_FUNC1_CHIPCLKCSR, NULL)),
		          !SBSDIO_ALPAV(clkctl)), PMU_MAX_TRANSITION_DLY);

		/* Now request ALP be put on the bus */
		bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR,
		                 DHD_INIT_CLKCTL2, &err);
		OSL_DELAY(65);

		for (fn = 0; fn <= numfn; fn++) {
			if (!(cis[fn] = MALLOC(osh, SBSDIO_CIS_SIZE_LIMIT))) {
				DHD_INFO(("dhdsdio_probe: fn %d cis malloc failed\n", fn));
				break;
			}
			bzero(cis[fn], SBSDIO_CIS_SIZE_LIMIT);

			if ((err = bcmsdh_cis_read(sdh, fn, cis[fn], SBSDIO_CIS_SIZE_LIMIT))) {
				DHD_INFO(("dhdsdio_probe: fn %d cis read err %d\n", fn, err));
				MFREE(osh, cis[fn], SBSDIO_CIS_SIZE_LIMIT);
				break;
			}
			dhd_dump_cis(fn, cis[fn]);
		}

		while (fn-- > 0) {
			ASSERT(cis[fn]);
			MFREE(osh, cis[fn], SBSDIO_CIS_SIZE_LIMIT);
		}

		if (err) {
			DHD_ERROR(("dhdsdio_probe: failure reading or parsing CIS\n"));
			goto fail;
		}
	}
#endif /* DHD_DEBUG */

	/* si_attach() will provide an SI handle and scan the backplane */
	if (!(bus->sih = si_attach((uint)devid, osh, regsva, DHD_BUS, sdh,
	                           &bus->vars, &bus->varsz))) {
		DHD_ERROR(("%s: si_attach failed!\n", __FUNCTION__));
		goto fail;
	}

	bcmsdh_chipinfo(sdh, bus->sih->chip, bus->sih->chiprev);

	if (!dhdsdio_chipmatch((uint16)bus->sih->chip)) {
		DHD_ERROR(("%s: unsupported chip: 0x%04x\n",
		           __FUNCTION__, bus->sih->chip));
		goto fail;
	}

	si_sdiod_drive_strength_init(bus->sih, osh, dhd_sdiod_drive_strength);


	/* Get info on the ARM and SOCRAM cores... */
	if (!DHD_NOPMU(bus)) {
		if ((si_setcore(bus->sih, ARM7S_CORE_ID, 0)) ||
		    (si_setcore(bus->sih, ARMCM3_CORE_ID, 0))) {
			bus->armrev = si_corerev(bus->sih);
		} else {
			DHD_ERROR(("%s: failed to find ARM core!\n", __FUNCTION__));
			goto fail;
		}
		if (!(bus->orig_ramsize = si_socram_size(bus->sih))) {
			DHD_ERROR(("%s: failed to find SOCRAM memory!\n", __FUNCTION__));
			goto fail;
		}
		bus->ramsize = bus->orig_ramsize;
		if (dhd_dongle_memsize)
			dhd_dongle_setmemsize(bus, dhd_dongle_memsize);

		DHD_ERROR(("DHD: dongle ram size is set to %d(orig %d)\n",
			bus->ramsize, bus->orig_ramsize));
	}

	/* ...but normally deal with the SDPCMDEV core */
	if (!(bus->regs = si_setcore(bus->sih, PCMCIA_CORE_ID, 0)) &&
	    !(bus->regs = si_setcore(bus->sih, SDIOD_CORE_ID, 0))) {
		DHD_ERROR(("%s: failed to find SDIODEV core!\n", __FUNCTION__));
		goto fail;
	}
	bus->sdpcmrev = si_corerev(bus->sih);

	/* Set core control so an SDIO reset does a backplane reset */
	OR_REG(osh, &bus->regs->corecontrol, CC_BPRESEN);

	pktq_init(&bus->txq, (PRIOMASK + 1), QLEN);

	/* Locate an appropriately-aligned portion of hdrbuf */
	bus->rxhdr = (uint8 *)ROUNDUP((uintptr)&bus->hdrbuf[0], DHD_SDALIGN);

	/* Set the poll and/or interrupt flags */
	bus->intr = (bool)dhd_intr;
	if ((bus->poll = (bool)dhd_poll))
		bus->pollrate = 1;

	return TRUE;

fail:
	return FALSE;
}

static bool
dhdsdio_probe_malloc(dhd_bus_t *bus, osl_t *osh, void *sdh)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifndef DHD_USE_STATIC_BUF
	if (bus->dhd->maxctl) {
		bus->rxblen = ROUNDUP((bus->dhd->maxctl + SDPCM_HDRLEN), ALIGNMENT) + DHD_SDALIGN;
		if (!(bus->rxbuf = MALLOC(osh, bus->rxblen))) {
			DHD_ERROR(("%s: MALLOC of %d-byte rxbuf failed\n",
			           __FUNCTION__, bus->rxblen));
			goto fail;
		}
	}

	/* Allocate buffer to receive glomed packet */
	if (!(bus->databuf = MALLOC(osh, MAX_DATA_BUF))) {
		DHD_ERROR(("%s: MALLOC of %d-byte databuf failed\n",
			__FUNCTION__, MAX_DATA_BUF));
		/* release rxbuf which was already located as above */
		if (!bus->rxblen) MFREE(osh, bus->rxbuf, bus->rxblen);
		goto fail;
	}
#else
	if (bus->dhd->maxctl) {
		bus->rxblen = ROUNDUP((bus->dhd->maxctl + SDPCM_HDRLEN), ALIGNMENT) + DHD_SDALIGN;
		if (!(bus->rxbuf = dhd_os_prealloc(DHD_PREALLOC_RXBUF, bus->rxblen))) {
			DHD_ERROR(("%s: MALLOC of %d-byte rxbuf failed\n",
			           __FUNCTION__, bus->rxblen));
			goto fail;
		}
	}
	/* Allocate buffer to receive glomed packet */
	if (!(bus->databuf = dhd_os_prealloc(DHD_PREALLOC_DATABUF, MAX_DATA_BUF))) {
		DHD_ERROR(("%s: MALLOC of %d-byte databuf failed\n",
			__FUNCTION__, MAX_DATA_BUF));
		goto fail;
	}
#endif /* DHD_USE_STATIC_BUF */

	/* Align the buffer */
	if ((uintptr)bus->databuf % DHD_SDALIGN)
		bus->dataptr = bus->databuf + (DHD_SDALIGN - ((uintptr)bus->databuf % DHD_SDALIGN));
	else
		bus->dataptr = bus->databuf;

	return TRUE;

fail:
	return FALSE;
}


static bool
dhdsdio_probe_init(dhd_bus_t *bus, osl_t *osh, void *sdh)
{
	int32 fnum;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

#ifdef SDTEST
	dhdsdio_pktgen_init(bus);
#endif /* SDTEST */

	/* Disable F2 to clear any intermediate frame state on the dongle */
	bcmsdh_cfg_write(sdh, SDIO_FUNC_0, SDIOD_CCCR_IOEN, SDIO_FUNC_ENABLE_1, NULL);

	bus->dhd->busstate = DHD_BUS_DOWN;
	bus->sleeping = FALSE;
	bus->rxflow = FALSE;
	bus->prev_rxlim_hit = 0;


	/* Done with backplane-dependent accesses, can drop clock... */
	bcmsdh_cfg_write(sdh, SDIO_FUNC_1, SBSDIO_FUNC1_CHIPCLKCSR, 0, NULL);

	/* ...and initialize clock/power states */
	bus->clkstate = CLK_SDONLY;
	bus->idletime = (int32)dhd_idletime;
	bus->idleclock = DHD_IDLE_ACTIVE;

	/* Query the SD clock speed */
	if (bcmsdh_iovar_op(sdh, "sd_divisor", NULL, 0,
	                    &bus->sd_divisor, sizeof(int32), FALSE) != BCME_OK) {
		DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_divisor"));
		bus->sd_divisor = -1;
	} else {
		DHD_INFO(("%s: Initial value for %s is %d\n",
		          __FUNCTION__, "sd_divisor", bus->sd_divisor));
	}

	/* Query the SD bus mode */
	if (bcmsdh_iovar_op(sdh, "sd_mode", NULL, 0,
	                    &bus->sd_mode, sizeof(int32), FALSE) != BCME_OK) {
		DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_mode"));
		bus->sd_mode = -1;
	} else {
		DHD_INFO(("%s: Initial value for %s is %d\n",
		          __FUNCTION__, "sd_mode", bus->sd_mode));
	}

	/* Query the F2 block size, set roundup accordingly */
	fnum = 2;
	if (bcmsdh_iovar_op(sdh, "sd_blocksize", &fnum, sizeof(int32),
	                    &bus->blocksize, sizeof(int32), FALSE) != BCME_OK) {
		bus->blocksize = 0;
		DHD_ERROR(("%s: fail on %s get\n", __FUNCTION__, "sd_blocksize"));
	} else {
		DHD_INFO(("%s: Initial value for %s is %d\n",
		          __FUNCTION__, "sd_blocksize", bus->blocksize));
	}
	bus->roundup = MIN(max_roundup, bus->blocksize);

	/* Query if bus module supports packet chaining, default to use if supported */
	if (bcmsdh_iovar_op(sdh, "sd_rxchain", NULL, 0,
	                    &bus->sd_rxchain, sizeof(int32), FALSE) != BCME_OK) {
		bus->sd_rxchain = FALSE;
	} else {
		DHD_INFO(("%s: bus module (through bcmsdh API) %s chaining\n",
		          __FUNCTION__, (bus->sd_rxchain ? "supports" : "does not support")));
	}
	bus->use_rxchain = (bool)bus->sd_rxchain;

	return TRUE;
}

bool
dhd_bus_download_firmware(struct dhd_bus *bus, osl_t *osh,
                          char *fw_path, char *nv_path)
{
	bool ret;
	bus->fw_path = fw_path;
	bus->nv_path = nv_path;

	ret = dhdsdio_download_firmware(bus, osh, bus->sdh);


	return ret;
}

static bool
dhdsdio_download_firmware(struct dhd_bus *bus, osl_t *osh, void *sdh)
{
	bool ret;

	/* Download the firmware */
	dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);

	ret = _dhdsdio_download_firmware(bus) == 0;

	dhdsdio_clkctl(bus, CLK_SDONLY, FALSE);

	return ret;
}

/* Detach and free everything */
static void
dhdsdio_release(dhd_bus_t *bus, osl_t *osh)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus) {
		ASSERT(osh);

		bcmsdh_intr_disable(bus->sdh);

		if (bus->dhd) {

			dhdsdio_release_dongle(bus, osh);

			dhd_detach(bus->dhd);
			bus->dhd = NULL;
		}

		dhdsdio_release_malloc(bus, osh);
		
		/* De-register interrupt handler */
		bcmsdh_intr_dereg(bus->sdh);

		MFREE(osh, bus, sizeof(dhd_bus_t));
	}

	if (osh)
		dhd_osl_detach(osh);

	DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
}

static void
dhdsdio_release_malloc(dhd_bus_t *bus, osl_t *osh)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus->dhd && bus->dhd->dongle_reset)
		return;

	if (bus->rxbuf) {
#ifndef DHD_USE_STATIC_BUF
		MFREE(osh, bus->rxbuf, bus->rxblen);
#endif
		bus->rxctl = bus->rxbuf = NULL;
		bus->rxlen = 0;
	}

	if (bus->databuf) {
#ifndef DHD_USE_STATIC_BUF
		MFREE(osh, bus->databuf, MAX_DATA_BUF);
#endif
		bus->databuf = NULL;
	}
}


static void
dhdsdio_release_dongle(dhd_bus_t *bus, osl_t *osh)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus->dhd && bus->dhd->dongle_reset)
		return;

	if (bus->sih) {
		dhdsdio_clkctl(bus, CLK_AVAIL, FALSE);
#if !defined(BCMLXSDMMC)
		si_watchdog(bus->sih, 4);
#endif /* !defined(BCMLXSDMMC) */
		dhdsdio_clkctl(bus, CLK_NONE, FALSE);
		si_detach(bus->sih);
		if (bus->vars && bus->varsz)
			MFREE(osh, bus->vars, bus->varsz);
		bus->vars = NULL;
	}

	DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
}

static void
dhdsdio_disconnect(void *ptr)
{
	dhd_bus_t *bus = (dhd_bus_t *)ptr;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (bus) {
		ASSERT(bus->dhd);
		dhdsdio_release(bus, bus->dhd->osh);
	}

	DHD_TRACE(("%s: Disconnected\n", __FUNCTION__));
}


/* Register/Unregister functions are called by the main DHD entry
 * point (e.g. module insertion) to link with the bus driver, in
 * order to look for or await the device.
 */

static bcmsdh_driver_t dhd_sdio = {
	dhdsdio_probe,
	dhdsdio_disconnect
};

int
dhd_bus_register(void)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	return bcmsdh_register(&dhd_sdio);
}

void
dhd_bus_unregister(void)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	bcmsdh_unregister();
}

#ifdef BCMEMBEDIMAGE
static int
dhdsdio_download_code_array(struct dhd_bus *bus)
{
	int bcmerror = -1;
	int offset = 0;

	DHD_INFO(("%s: download embedded firmware...\n", __FUNCTION__));

	/* Download image */
	while ((offset + MEMBLOCK) < sizeof(dlarray)) {
		bcmerror = dhdsdio_membytes(bus, TRUE, offset, dlarray + offset, MEMBLOCK);
		if (bcmerror) {
			DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
			        __FUNCTION__, bcmerror, MEMBLOCK, offset));
			goto err;
		}

		offset += MEMBLOCK;
	}

	if (offset < sizeof(dlarray)) {
		bcmerror = dhdsdio_membytes(bus, TRUE, offset,
			dlarray + offset, sizeof(dlarray) - offset);
		if (bcmerror) {
			DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
			        __FUNCTION__, bcmerror, sizeof(dlarray) - offset, offset));
			goto err;
		}
	}

#ifdef DHD_DEBUG
	/* Upload and compare the downloaded code */
	{
		unsigned char *ularray;

		ularray = MALLOC(bus->dhd->osh, bus->ramsize);
		/* Upload image to verify downloaded contents. */
		offset = 0;
		memset(ularray, 0xaa, bus->ramsize);
		while ((offset + MEMBLOCK) < sizeof(dlarray)) {
			bcmerror = dhdsdio_membytes(bus, FALSE, offset, ularray + offset, MEMBLOCK);
			if (bcmerror) {
				DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n",
					__FUNCTION__, bcmerror, MEMBLOCK, offset));
				goto err;
			}

			offset += MEMBLOCK;
		}

		if (offset < sizeof(dlarray)) {
			bcmerror = dhdsdio_membytes(bus, FALSE, offset,
				ularray + offset, sizeof(dlarray) - offset);
			if (bcmerror) {
				DHD_ERROR(("%s: error %d on reading %d membytes at 0x%08x\n",
					__FUNCTION__, bcmerror, sizeof(dlarray) - offset, offset));
				goto err;
			}
		}

		if (memcmp(dlarray, ularray, sizeof(dlarray))) {
			DHD_ERROR(("%s: Downloaded image is corrupted.\n", __FUNCTION__));
			ASSERT(0);
			goto err;
		} else
			DHD_ERROR(("%s: Download, Upload and compare succeeded.\n", __FUNCTION__));

		MFREE(bus->dhd->osh, ularray, bus->ramsize);
	}
#endif /* DHD_DEBUG */

err:
	return bcmerror;
}
#endif /* BCMEMBEDIMAGE */

static int
dhdsdio_download_code_file(struct dhd_bus *bus, char *fw_path)
{
	int bcmerror = -1;
	int offset = 0;
	uint len;
	void *image = NULL;
	uint8 *memblock = NULL, *memptr;

	DHD_INFO(("%s: download firmware %s\n", __FUNCTION__, fw_path));

	image = dhd_os_open_image(fw_path);
	if (image == NULL)
		goto err;

	memptr = memblock = MALLOC(bus->dhd->osh, MEMBLOCK + DHD_SDALIGN);
	if (memblock == NULL) {
		DHD_ERROR(("%s: Failed to allocate memory %d bytes\n", __FUNCTION__, MEMBLOCK));
		goto err;
	}
	if ((uint32)(uintptr)memblock % DHD_SDALIGN)
		memptr += (DHD_SDALIGN - ((uint32)(uintptr)memblock % DHD_SDALIGN));

	/* Download image */
	while ((len = dhd_os_get_image_block((char*)memptr, MEMBLOCK, image))) {
		bcmerror = dhdsdio_membytes(bus, TRUE, offset, memptr, len);
		if (bcmerror) {
			DHD_ERROR(("%s: error %d on writing %d membytes at 0x%08x\n",
			        __FUNCTION__, bcmerror, MEMBLOCK, offset));
			goto err;
		}

		offset += MEMBLOCK;
	}

err:
	if (memblock)
		MFREE(bus->dhd->osh, memblock, MEMBLOCK + DHD_SDALIGN);

	if (image)
		dhd_os_close_image(image);

	return bcmerror;
}

/*
 * ProcessVars:Takes a buffer of "<var>=<value>\n" lines read from a file and ending in a NUL.
 * Removes carriage returns, empty lines, comment lines, and converts newlines to NULs.
 * Shortens buffer as needed and pads with NULs.  End of buffer is marked by two NULs.
*/

static uint
process_nvram_vars(char *varbuf, uint len)
{
	char *dp;
	bool findNewline;
	int column;
	uint buf_len, n;

	dp = varbuf;

	findNewline = FALSE;
	column = 0;

	for (n = 0; n < len; n++) {
		if (varbuf[n] == 0)
			break;
		if (varbuf[n] == '\r')
			continue;
		if (findNewline && varbuf[n] != '\n')
			continue;
		findNewline = FALSE;
		if (varbuf[n] == '#') {
			findNewline = TRUE;
			continue;
		}
		if (varbuf[n] == '\n') {
			if (column == 0)
				continue;
			*dp++ = 0;
			column = 0;
			continue;
		}
		*dp++ = varbuf[n];
		column++;
	}
	buf_len = dp - varbuf;

	while (dp < varbuf + n)
		*dp++ = 0;

	return buf_len;
}

/*
	EXAMPLE: nvram_array
	nvram_arry format:
	name=value
	Use carriage return at the end of each assignment, and an empty string with
	carriage return at the end of array.

	For example:
	unsigned char  nvram_array[] = {"name1=value1\n", "name2=value2\n", "\n"};
	Hex values start with 0x, and mac addr format: xx:xx:xx:xx:xx:xx.

	Search "EXAMPLE: nvram_array" to see how the array is activated.
*/

void
dhd_bus_set_nvram_params(struct dhd_bus * bus, const char *nvram_params)
{
	bus->nvram_params = nvram_params;
}

static int
dhdsdio_download_nvram(struct dhd_bus *bus)
{
	int bcmerror = -1;
	uint len;
	void * image = NULL;
	char * memblock = NULL;
	char *bufp;
	char *nv_path;
	bool nvram_file_exists;

	nv_path = bus->nv_path;

	nvram_file_exists = ((nv_path != NULL) && (nv_path[0] != '\0'));
	if (!nvram_file_exists && (bus->nvram_params == NULL))
		return (0);

	if (nvram_file_exists) {
		image = dhd_os_open_image(nv_path);
		if (image == NULL)
			goto err;
	}

	memblock = MALLOC(bus->dhd->osh, MEMBLOCK);
	if (memblock == NULL) {
		DHD_ERROR(("%s: Failed to allocate memory %d bytes\n",
		           __FUNCTION__, MEMBLOCK));
		goto err;
	}

	/* Download variables */
	if (nvram_file_exists) {
		len = dhd_os_get_image_block(memblock, MEMBLOCK, image);
	}
	else {
		len = strlen(bus->nvram_params);
		ASSERT(len <= MEMBLOCK);
		if (len > MEMBLOCK)
			len = MEMBLOCK;
		memcpy(memblock, bus->nvram_params, len);
	}

	if (len > 0 && len < MEMBLOCK) {
		bufp = (char *)memblock;
		bufp[len] = 0;
		len = process_nvram_vars(bufp, len);
		bufp += len;
		*bufp++ = 0;
		if (len)
			bcmerror = dhdsdio_downloadvars(bus, memblock, len + 1);
		if (bcmerror) {
			DHD_ERROR(("%s: error downloading vars: %d\n",
			           __FUNCTION__, bcmerror));
		}
	}
	else {
		DHD_ERROR(("%s: error reading nvram file: %d\n",
		           __FUNCTION__, len));
		bcmerror = BCME_SDIO_ERROR;
	}

err:
	if (memblock)
		MFREE(bus->dhd->osh, memblock, MEMBLOCK);

	if (image)
		dhd_os_close_image(image);

	return bcmerror;
}

static int
_dhdsdio_download_firmware(struct dhd_bus *bus)
{
	int bcmerror = -1;

	bool embed = FALSE;	/* download embedded firmware */
	bool dlok = FALSE;	/* download firmware succeeded */

	/* Out immediately if no image to download */
	if ((bus->fw_path == NULL) || (bus->fw_path[0] == '\0')) {
#ifdef BCMEMBEDIMAGE
		embed = TRUE;
#else
		return bcmerror;
#endif
	}

	/* Keep arm in reset */
	if (dhdsdio_download_state(bus, TRUE)) {
		DHD_ERROR(("%s: error placing ARM core in reset\n", __FUNCTION__));
		goto err;
	}

	/* External image takes precedence if specified */
	if ((bus->fw_path != NULL) && (bus->fw_path[0] != '\0')) {
		if (dhdsdio_download_code_file(bus, bus->fw_path)) {
			DHD_ERROR(("%s: dongle image file download failed\n", __FUNCTION__));
#ifdef BCMEMBEDIMAGE
			embed = TRUE;
#else
			goto err;
#endif
		}
		else {
			embed = FALSE;
			dlok = TRUE;
		}
	}
#ifdef BCMEMBEDIMAGE
	if (embed) {
		if (dhdsdio_download_code_array(bus)) {
			DHD_ERROR(("%s: dongle image array download failed\n", __FUNCTION__));
			goto err;
		}
		else {
			dlok = TRUE;
		}
	}
#endif
	if (!dlok) {
		DHD_ERROR(("%s: dongle image download failed\n", __FUNCTION__));
		goto err;
	}

	/* EXAMPLE: nvram_array */
	/* If a valid nvram_arry is specified as above, it can be passed down to dongle */
	/* dhd_bus_set_nvram_params(bus, (char *)&nvram_array); */

	/* External nvram takes precedence if specified */
	if (dhdsdio_download_nvram(bus)) {
		DHD_ERROR(("%s: dongle nvram file download failed\n", __FUNCTION__));
	}

	/* Take arm out of reset */
	if (dhdsdio_download_state(bus, FALSE)) {
		DHD_ERROR(("%s: error getting out of ARM core reset\n", __FUNCTION__));
		goto err;
	}

	bcmerror = 0;

err:
	return bcmerror;
}

static int
dhd_bcmsdh_recv_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags, uint8 *buf, uint nbytes,
	void *pkt, bcmsdh_cmplt_fn_t complete, void *handle)
{
	int status;

	/* 4329: GSPI check */
	status = bcmsdh_recv_buf(bus->sdh, addr, fn, flags, buf, nbytes, pkt, complete, handle);
	return status;
}

static int
dhd_bcmsdh_send_buf(dhd_bus_t *bus, uint32 addr, uint fn, uint flags, uint8 *buf, uint nbytes,
	void *pkt, bcmsdh_cmplt_fn_t complete, void *handle)
{
	return (bcmsdh_send_buf(bus->sdh, addr, fn, flags, buf, nbytes, pkt, complete, handle));
}

uint
dhd_bus_chip(struct dhd_bus *bus)
{
	ASSERT(bus->sih != NULL);
	return bus->sih->chip;
}

void *
dhd_bus_pub(struct dhd_bus *bus)
{
	return bus->dhd;
}

void *
dhd_bus_txq(struct dhd_bus *bus)
{
	return &bus->txq;
}

uint
dhd_bus_hdrlen(struct dhd_bus *bus)
{
	return SDPCM_HDRLEN;
}

int
dhd_bus_devreset(dhd_pub_t *dhdp, uint8 flag)
{
	int bcmerror = 0;
	dhd_bus_t *bus;

	bus = dhdp->bus;

	if (flag == TRUE) {
		if (!bus->dhd->dongle_reset) {
			dhd_os_sdlock(dhdp);
			/* Turning off watchdog */
			dhd_os_wd_timer(dhdp, 0);
#if !defined(IGNORE_ETH0_DOWN)
			/* Force flow control as protection when stop come before ifconfig_down */
			dhd_txflowcontrol(bus->dhd, 0, ON);
#endif /* !defined(IGNORE_ETH0_DOWN) */
			/* Expect app to have torn down any connection before calling */
			/* Stop the bus, disable F2 */
			dhd_bus_stop(bus, FALSE);

			/* Clean tx/rx buffer pointers, detach from the dongle */
			dhdsdio_release_dongle(bus, bus->dhd->osh);

			bus->dhd->dongle_reset = TRUE;
			bus->dhd->up = FALSE;
			dhd_os_sdunlock(dhdp);

			DHD_TRACE(("%s:  WLAN OFF DONE\n", __FUNCTION__));
			/* App can now remove power from device */
		} else
			bcmerror = BCME_SDIO_ERROR;
	} else {
		/* App must have restored power to device before calling */

		DHD_TRACE(("\n\n%s: == WLAN ON ==\n", __FUNCTION__));

		if (bus->dhd->dongle_reset) {
			/* Turn on WLAN */
			dhd_os_sdlock(dhdp);

			/* Reset SD client */
			bcmsdh_reset(bus->sdh);

			/* Attempt to re-attach & download */
			if (dhdsdio_probe_attach(bus, bus->dhd->osh, bus->sdh,
			                        (uint32 *)SI_ENUM_BASE,
			                        bus->cl_devid)) {
				/* Attempt to download binary to the dongle */
				if (dhdsdio_probe_init(bus, bus->dhd->osh, bus->sdh) &&
					dhdsdio_download_firmware(bus, bus->dhd->osh, bus->sdh)) {

					/* Re-init bus, enable F2 transfer */
					bcmerror = dhd_bus_init((dhd_pub_t *) bus->dhd, FALSE);
					if (bcmerror == BCME_OK) {
#if defined(OOB_INTR_ONLY)
					dhd_enable_oob_intr(bus, TRUE);
#endif /* defined(OOB_INTR_ONLY) */

					bus->dhd->dongle_reset = FALSE;
					bus->dhd->up = TRUE;

#if !defined(IGNORE_ETH0_DOWN)
					/* Restore flow control  */
					dhd_txflowcontrol(bus->dhd, 0, OFF);
#endif 
						/* Turning on watchdog back */
						dhd_os_wd_timer(dhdp, dhd_watchdog_ms);

					DHD_TRACE(("%s: WLAN ON DONE\n", __FUNCTION__));
					} else {
						dhd_bus_stop(bus, FALSE);
						dhdsdio_release_dongle(bus, bus->dhd->osh);
					}
				} else
					bcmerror = BCME_SDIO_ERROR;
			} else
				bcmerror = BCME_SDIO_ERROR;

			dhd_os_sdunlock(dhdp);
		} else {
			bcmerror = BCME_NOTDOWN;
			DHD_ERROR(("%s: Set DEVRESET=FALSE invoked when device is on\n",
				__FUNCTION__));
			bcmerror = BCME_SDIO_ERROR;
		}
	}
	return bcmerror;
}
./dhd/sys/dhd_bus.h0000755000175200017520000000706712077456476016420 0ustar  xionghaoyongxionghaoyong/*
 * Header file describing the internal (inter-module) DHD interfaces.
 *
 * Provides type definitions and function prototypes used to link the
 * DHD OS, bus, and protocol modules.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_bus.h,v 1.4.6.3.2.3.6.7 2010/08/13 01:35:24 Exp $
 */

#ifndef _dhd_bus_h_
#define _dhd_bus_h_

/*
 * Exported from dhd bus module (dhd_usb, dhd_sdio)
 */

/* Indicate (dis)interest in finding dongles. */
extern int dhd_bus_register(void);
extern void dhd_bus_unregister(void);

/* Download firmware image and nvram image */
extern bool dhd_bus_download_firmware(struct dhd_bus *bus, osl_t *osh,
	char *fw_path, char *nv_path);

/* Stop bus module: clear pending frames, disable data flow */
extern void dhd_bus_stop(struct dhd_bus *bus, bool enforce_mutex);

/* Initialize bus module: prepare for communication w/dongle */
extern int dhd_bus_init(dhd_pub_t *dhdp, bool enforce_mutex);

/* Send a data frame to the dongle.  Callee disposes of txp. */
extern int dhd_bus_txdata(struct dhd_bus *bus, void *txp);

/* Send/receive a control message to/from the dongle.
 * Expects caller to enforce a single outstanding transaction.
 */
extern int dhd_bus_txctl(struct dhd_bus *bus, uchar *msg, uint msglen);
extern int dhd_bus_rxctl(struct dhd_bus *bus, uchar *msg, uint msglen);

/* Watchdog timer function */
extern bool dhd_bus_watchdog(dhd_pub_t *dhd);

#ifdef DHD_DEBUG
/* Device console input function */
extern int dhd_bus_console_in(dhd_pub_t *dhd, uchar *msg, uint msglen);
#endif /* DHD_DEBUG */

/* Deferred processing for the bus, return TRUE requests reschedule */
extern bool dhd_bus_dpc(struct dhd_bus *bus);
extern void dhd_bus_isr(bool * InterruptRecognized, bool * QueueMiniportHandleInterrupt, void *arg);


/* Check for and handle local prot-specific iovar commands */
extern int dhd_bus_iovar_op(dhd_pub_t *dhdp, const char *name,
                            void *params, int plen, void *arg, int len, bool set);

/* Add bus dump output to a buffer */
extern void dhd_bus_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf);

/* Clear any bus counters */
extern void dhd_bus_clearcounts(dhd_pub_t *dhdp);

/* return the dongle chipid */
extern uint dhd_bus_chip(struct dhd_bus *bus);

/* Set user-specified nvram parameters. */
extern void dhd_bus_set_nvram_params(struct dhd_bus * bus, const char *nvram_params);

extern void *dhd_bus_pub(struct dhd_bus *bus);
extern void *dhd_bus_txq(struct dhd_bus *bus);
extern uint dhd_bus_hdrlen(struct dhd_bus *bus);

#endif /* _dhd_bus_h_ */
./dhd/sys/dhd_linux.c0000755000175200017520000023221012077457163016741 0ustar  xionghaoyongxionghaoyong/*
 * Broadcom Dongle Host Driver (DHD), Linux-specific network interface
 * Basically selected code segments from usb-cdc.c and usb-rndis.c
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd_linux.c,v 1.65.4.9.2.12.2.104.4.37 2010/12/04 01:22:16 Exp $
 */

#ifdef CONFIG_WIFI_CONTROL_FUNC
#include <linux/platform_device.h>
#endif
#include <typedefs.h>
#include <linuxver.h>
#include <osl.h>

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/fcntl.h>
#include <linux/fs.h>

#include <asm/uaccess.h>
#include <asm/unaligned.h>

#include <epivers.h>
#include <bcmutils.h>
#include <bcmendian.h>

#include <proto/ethernet.h>
#include <dngl_stats.h>
#include <dhd.h>
#include <dhd_bus.h>
#include <dhd_proto.h>
#include <dhd_dbg.h>

#include <mach/board.h>

#ifdef CUSTOMER_HW
extern int qsd8x50_wlan_set_carddetect(int val);
#endif /* CUSTOMER_HW */
/*
 * NOTE: to enable keep alive, define KEEP_ALIVE here
 * or in the makefile, also must use -keepalive- firmware
 * keep_alive needs htodXX(), le/be  macro
 */


#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
#include <linux/wifi_tiwlan.h>

struct semaphore wifi_control_sem;

struct dhd_bus *g_bus;

static struct wifi_platform_data *wifi_control_data = NULL;
static struct resource *wifi_irqres = NULL;

int wifi_get_irq_number(unsigned long *irq_flags_ptr)
{
	if (wifi_irqres) {
		*irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
		return (int)wifi_irqres->start;
	}
#ifdef CUSTOM_OOB_GPIO_NUM
	return CUSTOM_OOB_GPIO_NUM;
#else
	return -1;
#endif
}

int wifi_set_carddetect(int on)
{
	printk("%s = %d\n", __FUNCTION__, on);
	if (wifi_control_data && wifi_control_data->set_carddetect) {
		wifi_control_data->set_carddetect(on);
	}
	return 0;
}

int wifi_set_power(int on, unsigned long msec)
{
	printk("%s = %d\n", __FUNCTION__, on);
	if (wifi_control_data && wifi_control_data->set_power) {
		wifi_control_data->set_power(on);
	}
	if (msec)
		mdelay(msec);
	return 0;
}

int wifi_set_reset(int on, unsigned long msec)
{
	printk("%s = %d\n", __FUNCTION__, on);
	if (wifi_control_data && wifi_control_data->set_reset) {
		wifi_control_data->set_reset(on);
	}
	if (msec)
		mdelay(msec);
	return 0;
}
static int wifi_probe(struct platform_device *pdev)
{
	struct wifi_platform_data *wifi_ctrl =
		(struct wifi_platform_data *)(pdev->dev.platform_data);

	printk("## %s\n", __FUNCTION__);
	wifi_irqres = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "bcm4329_wlan_irq");
	wifi_control_data = wifi_ctrl;

	wifi_set_power(1, 0);	/* Power On */
	wifi_set_carddetect(1);	/* CardDetect (0->1) */

	up(&wifi_control_sem);
	return 0;
}

static int wifi_remove(struct platform_device *pdev)
{
	struct wifi_platform_data *wifi_ctrl =
		(struct wifi_platform_data *)(pdev->dev.platform_data);

	printk("## %s\n", __FUNCTION__);
	wifi_control_data = wifi_ctrl;

	wifi_set_carddetect(0);	/* CardDetect (1->0) */
	wifi_set_power(0, 0);	/* Power Off */

	up(&wifi_control_sem);
	return 0;
}
static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
{
	DHD_TRACE(("##> %s\n", __FUNCTION__));
	return 0;
}
static int wifi_resume(struct platform_device *pdev)
{
	DHD_TRACE(("##> %s\n", __FUNCTION__));
	 return 0;
}

static struct platform_driver wifi_device = {
	.probe          = wifi_probe,
	.remove         = wifi_remove,
	.suspend        = wifi_suspend,
	.resume         = wifi_resume,
	.driver         = {
	.name   = "bcm4329_wlan",
	}
};

int wifi_add_dev(void)
{
	DHD_TRACE(("## Calling platform_driver_register\n"));
	return platform_driver_register(&wifi_device);
}

void wifi_del_dev(void)
{
	DHD_TRACE(("## Unregister platform_driver_register\n"));
	platform_driver_unregister(&wifi_device);
}
#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */


#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
volatile bool dhd_mmc_suspend = FALSE;
DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */

#if defined(OOB_INTR_ONLY)
extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
#endif /* defined(OOB_INTR_ONLY) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
MODULE_LICENSE("GPL v2");
#endif /* LinuxVer */

#if LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15)
const char *
print_tainted()
{
	return "";
}
#endif	/* LINUX_VERSION_CODE == KERNEL_VERSION(2, 6, 15) */

/* Linux wireless extension support */
#if defined(CONFIG_WIRELESS_EXT)
#include <wl_iw.h>
extern wl_iw_extra_params_t  g_wl_iw_params;
#endif /* defined(CONFIG_WIRELESS_EXT) */

#if defined(CONFIG_HAS_EARLYSUSPEND)
#include <linux/earlysuspend.h>
extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */

#ifdef PKT_FILTER_SUPPORT
extern void dhd_pktfilter_offload_set(dhd_pub_t * dhd, char *arg);
extern void dhd_pktfilter_offload_enable(dhd_pub_t * dhd, char *arg, int enable, int master_mode);
#endif

/* Interface control information */
typedef struct dhd_if {
	struct dhd_info *info;			/* back pointer to dhd_info */
	/* OS/stack specifics */
	struct net_device *net;
	struct net_device_stats stats;
	int 			idx;			/* iface idx in dongle */
	int 			state;			/* interface state */
	uint 			subunit;		/* subunit */
	uint8			mac_addr[ETHER_ADDR_LEN];	/* assigned MAC address */
	bool			attached;		/* Delayed attachment when unset */
	bool			txflowcontrol;	/* Per interface flow control indicator */
	char			name[IFNAMSIZ+1]; /* linux interface name */
} dhd_if_t;

/* Local private structure (extension of pub) */
typedef struct dhd_info {
#if defined(CONFIG_WIRELESS_EXT)
	wl_iw_t		iw;		/* wireless extensions state (must be first) */
#endif /* defined(CONFIG_WIRELESS_EXT) */

	dhd_pub_t pub;

	/* OS/stack specifics */
	dhd_if_t *iflist[DHD_MAX_IFS];

	struct semaphore proto_sem;
	wait_queue_head_t ioctl_resp_wait;
	struct timer_list timer;
	bool wd_timer_valid;
	struct tasklet_struct tasklet;
	spinlock_t	sdlock;
	spinlock_t	txqlock;
	spinlock_t	dhd_lock;
	/* Thread based operation */
	bool threads_only;
	struct semaphore sdsem;
	long watchdog_pid;
	struct semaphore watchdog_sem;
	struct completion watchdog_exited;
	long dpc_pid;
	struct semaphore dpc_sem;
	struct completion dpc_exited;

    int hang_was_sent; /* flag that message was send at least once */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	struct mutex wl_start_lock; /* mutex when START called to prevent any other Linux calls */
#endif 
	/* Thread to issue ioctl for multicast */
	long sysioc_pid;
	struct semaphore sysioc_sem;
	struct completion sysioc_exited;
	bool set_multicast;
	bool set_macaddress;
	struct ether_addr macvalue;
	wait_queue_head_t ctrl_wait;
	atomic_t pend_8021x_cnt;

#ifdef CONFIG_HAS_EARLYSUSPEND
	struct early_suspend early_suspend;
#endif /* CONFIG_HAS_EARLYSUSPEND */
} dhd_info_t;

/* Definitions to provide path to the firmware and nvram
 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
 */
char firmware_softap_path[MOD_PARAM_PATHLEN]="";
char firmware_path[MOD_PARAM_PATHLEN]="";
char nvram_path[MOD_PARAM_PATHLEN]="";

char chipname[10]="";

#if !defined(CONFIG_HAS_EARLYSUSPEND)
extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);
#endif

extern int	 wl_control_wl_start(struct net_device *dev);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
struct semaphore dhd_registration_sem;
#define DHD_REGISTRATION_TIMEOUT  12000  /* msec : allowed time to finished dhd registration */
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
/* load firmware and/or nvram values from the filesystem */
module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
module_param_string(firmware_softap_path, firmware_softap_path, MOD_PARAM_PATHLEN, 0);
module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);

/* Error bits */
module_param(dhd_msg_level, int, 0);

uint wlan_chip_detect= TRUE;
module_param(wlan_chip_detect, uint, 0);

/* Spawn a thread for system ioctls (set mac, set mcast) */
uint dhd_sysioc = TRUE;
module_param(dhd_sysioc, uint, 0);

/* Watchdog interval */
uint dhd_watchdog_ms = 10;
module_param(dhd_watchdog_ms, uint, 0);

#ifdef DHD_DEBUG
/* Console poll interval */
uint dhd_console_ms = 0;
module_param(dhd_console_ms, uint, 0);
#endif /* DHD_DEBUG */

/* ARP offload agent mode : Enable ARP Host Auto-Reply and ARP Peer Auto-Reply */
uint dhd_arp_mode = 0xb;
module_param(dhd_arp_mode, uint, 0);

/* ARP offload enable */
uint dhd_arp_enable = TRUE;
module_param(dhd_arp_enable, uint, 0);

/* Global Pkt filter enable control */
uint dhd_pkt_filter_enable = TRUE;
module_param(dhd_pkt_filter_enable, uint, 0);

/*  Pkt filter init setup */
uint dhd_pkt_filter_init = 0;
module_param(dhd_pkt_filter_init, uint, 0);

/* Pkt filter mode control */
uint dhd_master_mode = TRUE;
module_param(dhd_master_mode, uint, 1);

/* Watchdog thread priority, -1 to use kernel timer */
int dhd_watchdog_prio = 97;
module_param(dhd_watchdog_prio, int, 0);

/* DPC thread priority, -1 to use tasklet */
int dhd_dpc_prio = 98;
module_param(dhd_dpc_prio, int, 0);

/* DPC thread priority, -1 to use tasklet */
extern int dhd_dongle_memsize;
module_param(dhd_dongle_memsize, int, 0);

/* Contorl fw roaming */
#ifdef CUSTOMER_HW2
uint dhd_roam = 0;
#else
uint dhd_roam = 1;
#endif

/* Control radio state */
uint dhd_radio_up = 1;

/* Network inteface name */
char iface_name[IFNAMSIZ];
module_param_string(iface_name, iface_name, IFNAMSIZ, 0);

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
#define DAEMONIZE(a) daemonize(a); \
	allow_signal(SIGKILL); \
	allow_signal(SIGTERM);
#else /* Linux 2.4 (w/o preemption patch) */
#define RAISE_RX_SOFTIRQ() \
	cpu_raise_softirq(smp_processor_id(), NET_RX_SOFTIRQ)
#define DAEMONIZE(a) daemonize(); \
	do { if (a) \
		strncpy(current->comm, a, MIN(sizeof(current->comm), (strlen(a) + 1))); \
	} while (0);
#endif /* LINUX_VERSION_CODE  */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
#define BLOCKABLE()	(!in_atomic())
#else
#define BLOCKABLE()	(!in_interrupt())
#endif

/* The following are specific to the SDIO dongle */

/* IOCTL response timeout */
int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;

/* Idle timeout for backplane clock */
int dhd_idletime = DHD_IDLETIME_TICKS;
module_param(dhd_idletime, int, 0);

/* Use polling */
uint dhd_poll = FALSE;
module_param(dhd_poll, uint, 0);


/* Use interrupts */
uint dhd_intr = TRUE;
module_param(dhd_intr, uint, 0);

/* SDIO Drive Strength (in milliamps) */
uint dhd_sdiod_drive_strength = 8; /** BCM_VINO changed to 8 from 6 */
module_param(dhd_sdiod_drive_strength, uint, 0);

/* Tx/Rx bounds */
extern uint dhd_txbound;
extern uint dhd_rxbound;
module_param(dhd_txbound, uint, 0);
module_param(dhd_rxbound, uint, 0);

/* Deferred transmits */
extern uint dhd_deferred_tx;
module_param(dhd_deferred_tx, uint, 0);



#ifdef SDTEST
/* Echo packet generator (pkts/s) */
uint dhd_pktgen = 0;
module_param(dhd_pktgen, uint, 0);

/* Echo packet len (0 => sawtooth, max 2040) */
uint dhd_pktgen_len = 0;
module_param(dhd_pktgen_len, uint, 0);
#endif


/* Version string to report */
#ifdef DHD_DEBUG
#define DHD_COMPILED "\nCompiled in " SRCBASE
#else
#define DHD_COMPILED
#endif

static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
#ifdef DHD_DEBUG
"\nCompiled in " SRCBASE " on " __DATE__ " at " __TIME__
#endif
;


#if defined(CONFIG_WIRELESS_EXT)
struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
#endif /* defined(CONFIG_WIRELESS_EXT) */

static void dhd_dpc(ulong data);
/* forward decl */
extern int dhd_wait_pend8021x(struct net_device *dev);

#ifdef TOE
#ifndef BDC
#error TOE requires BDC
#endif /* !BDC */
static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
#endif /* TOE */

static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
                             wl_event_msg_t *event_ptr, void **data_ptr);

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) && 1
static int dhd_sleep_pm_callback(struct notifier_block *nfb, unsigned long action, void *ignored)
{
	int ret = NOTIFY_DONE;

	switch (action) {
	case PM_HIBERNATION_PREPARE:
	case PM_SUSPEND_PREPARE:
		dhd_mmc_suspend = TRUE;
		ret = NOTIFY_OK;
		break;
	case PM_POST_HIBERNATION:
	case PM_POST_SUSPEND:
		dhd_mmc_suspend = FALSE;
		ret = NOTIFY_OK;
		break;
	}
	smp_mb();
	return ret;
}

static struct notifier_block dhd_sleep_pm_notifier = {
	.notifier_call = dhd_sleep_pm_callback,
	.priority = 0
};
extern int register_pm_notifier(struct notifier_block *nb);
extern int unregister_pm_notifier(struct notifier_block *nb);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
	/* && defined(DHD_GPL) */
static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
{
#ifdef PKT_FILTER_SUPPORT
	DHD_TRACE(("%s: %d\n", __FUNCTION__, value));
	/* 1 - Enable packet filter, only allow unicast packet to send up */
	/* 0 - Disable packet filter */
	if (dhd_pkt_filter_enable) {
		int i;

		for (i = 0; i < dhd->pktfilter_count; i++) {
			dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
			dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
				value, dhd_master_mode);
		}
	}
#endif
}



#if defined(CONFIG_HAS_EARLYSUSPEND)
static int dhd_set_suspend(int value, dhd_pub_t *dhd)
{
	int power_mode = PM_MAX;
	/* wl_pkt_filter_enable_t	enable_parm; */
	char iovbuf[32];
	int bcn_li_dtim = 3;
#ifdef CUSTOMER_HW2
	uint roamvar = 1;
#endif /* CUSTOMER_HW2 */

	DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n", \
			__FUNCTION__, value, dhd->in_suspend));

	if (dhd && dhd->up) {
		if (value && dhd->in_suspend) {

				/* Kernel suspended */
				DHD_TRACE(("%s: force extra Suspend setting \n", __FUNCTION__));

				dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
					(char *)&power_mode, sizeof(power_mode));

				/* Enable packet filter, only allow unicast packet to send up */
				dhd_set_packet_filter(1, dhd);

				/* if dtim skip setup as default force it to wake each thrid dtim
				 *  for better power saving.
				 *  Note that side effect is chance to miss BC/MC packet
				*/
				bcn_li_dtim = dhd_get_dtim_skip(dhd);
				bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
					4, iovbuf, sizeof(iovbuf));
				dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));

#ifdef CUSTOMER_HW2
				/* Disable build-in roaming during suspend */
				bcm_mkiovar("roam_off", (char *)&roamvar, 4, \
					iovbuf, sizeof(iovbuf));
				dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#endif /* CUSTOMER_HW2 */

			} else {

				/* Kernel resumed  */
				DHD_TRACE(("%s: Remove extra suspend setting \n", __FUNCTION__));

				power_mode = PM_FAST;
				dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM, (char *)&power_mode,
					sizeof(power_mode));

				/* disable pkt filter */
				dhd_set_packet_filter(0, dhd);

				/* restore pre-suspend setting for dtim_skip */
				bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
					4, iovbuf, sizeof(iovbuf));

				dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#ifdef CUSTOMER_HW2
				roamvar = 0; /* default - roaming enabled */
				bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf, \
						 sizeof(iovbuf));
				dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf, sizeof(iovbuf));
#endif /* CUSTOMER_HW2 */
			}
	}

	return 0;
}

static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
{
	dhd_pub_t *dhdp = &dhd->pub;

	dhd_os_proto_block(dhdp);
	/* Set flag when early suspend was called */
	dhdp->in_suspend = val;
	if (!dhdp->suspend_disable_flag)
		dhd_set_suspend(val, dhdp);
	dhd_os_proto_unblock(dhdp);
}

static void dhd_early_suspend(struct early_suspend *h)
{
	struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);

	DHD_TRACE(("%s: enter\n", __FUNCTION__));

	if (dhd)
		dhd_suspend_resume_helper(dhd, 1);

}

static void dhd_late_resume(struct early_suspend *h)
{
	struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);

	DHD_TRACE(("%s: enter\n", __FUNCTION__));

	if (dhd)
		dhd_suspend_resume_helper(dhd, 0);
}
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */

/*
 * Generalized timeout mechanism.  Uses spin sleep with exponential back-off until
 * the sleep time reaches one jiffy, then switches over to task delay.  Usage:
 *
 *      dhd_timeout_start(&tmo, usec);
 *      while (!dhd_timeout_expired(&tmo))
 *              if (poll_something())
 *                      break;
 *      if (dhd_timeout_expired(&tmo))
 *              fatal();
 */

void
dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
{
	tmo->limit = usec;
	tmo->increment = 0;
	tmo->elapsed = 0;
	tmo->tick = 1000000 / HZ;
}

int
dhd_timeout_expired(dhd_timeout_t *tmo)
{
	/* Does nothing the first call */
	if (tmo->increment == 0) {
		tmo->increment = 1;
		return 0;
	}

	if (tmo->elapsed >= tmo->limit)
		return 1;

	/* Add the delay that's about to take place */
	tmo->elapsed += tmo->increment;

	if (tmo->increment < tmo->tick) {
		OSL_DELAY(tmo->increment);
		tmo->increment *= 2;
		if (tmo->increment > tmo->tick)
			tmo->increment = tmo->tick;
	} else {
		wait_queue_head_t delay_wait;
		DECLARE_WAITQUEUE(wait, current);
		int pending;
		init_waitqueue_head(&delay_wait);
		add_wait_queue(&delay_wait, &wait);
		set_current_state(TASK_INTERRUPTIBLE);
		schedule_timeout(1);
		pending = signal_pending(current);
		remove_wait_queue(&delay_wait, &wait);
		set_current_state(TASK_RUNNING);
		if (pending)
			return 1;	/* Interrupted */
	}

	return 0;
}

static int
dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
{
	int i = 0;

	ASSERT(dhd);
	while (i < DHD_MAX_IFS) {
		if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
			return i;
		i++;
	}

	return DHD_BAD_IF;
}

int
dhd_ifname2idx(dhd_info_t *dhd, char *name)
{
	int i = DHD_MAX_IFS;

	ASSERT(dhd);

	if (name == NULL || *name == '\0')
		return 0;

	while (--i > 0)
		if (dhd->iflist[i] && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
				break;

	DHD_TRACE(("%s: return idx %d for \"%s\"\n", __FUNCTION__, i, name));

	return i;	/* default - the primary interface */
}

char *
dhd_ifname(dhd_pub_t *dhdp, int ifidx)
{
	dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

	ASSERT(dhd);

	if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
		DHD_ERROR(("%s: ifidx %d out of range\n", __FUNCTION__, ifidx));
		return "<if_bad>";
	}

	if (dhd->iflist[ifidx] == NULL) {
		DHD_ERROR(("%s: null i/f %d\n", __FUNCTION__, ifidx));
		return "<if_null>";
	}

	if (dhd->iflist[ifidx]->net)
		return dhd->iflist[ifidx]->net->name;

	return "<if_none>";
}

static void
_dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
{
	struct net_device *dev;
	struct dev_mc_list *mclist;
	uint32 allmulti, cnt;

	wl_ioctl_t ioc;
	char *buf, *bufp;
	uint buflen;
	int ret;

	ASSERT(dhd && dhd->iflist[ifidx]);
	dev = dhd->iflist[ifidx]->net;
	mclist = dev->mc_list;
	cnt = dev->mc_count;

	/* Determine initial value of allmulti flag */
	allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;

	/* Send down the multicast list first. */


	buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
	if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) {
		DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
		           dhd_ifname(&dhd->pub, ifidx), cnt));
		return;
	}

	strcpy(bufp, "mcast_list");
	bufp += strlen("mcast_list") + 1;

	cnt = htol32(cnt);
	memcpy(bufp, &cnt, sizeof(cnt));
	bufp += sizeof(cnt);

	for (cnt = 0; mclist && (cnt < dev->mc_count); cnt++, mclist = mclist->next) {
		memcpy(bufp, (void *)mclist->dmi_addr, ETHER_ADDR_LEN);
		bufp += ETHER_ADDR_LEN;
	}

	memset(&ioc, 0, sizeof(ioc));
	ioc.cmd = WLC_SET_VAR;
	ioc.buf = buf;
	ioc.len = buflen;
	ioc.set = TRUE;

	ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
	if (ret < 0) {
		DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
			dhd_ifname(&dhd->pub, ifidx), cnt));
		allmulti = cnt ? TRUE : allmulti;
	}

	MFREE(dhd->pub.osh, buf, buflen);

	/* Now send the allmulti setting.  This is based on the setting in the
	 * net_device flags, but might be modified above to be turned on if we
	 * were trying to set some addresses and dongle rejected it...
	 */

	buflen = sizeof("allmulti") + sizeof(allmulti);
	if (!(buf = MALLOC(dhd->pub.osh, buflen))) {
		DHD_ERROR(("%s: out of memory for allmulti\n", dhd_ifname(&dhd->pub, ifidx)));
		return;
	}
	allmulti = htol32(allmulti);

	if (!bcm_mkiovar("allmulti", (void*)&allmulti, sizeof(allmulti), buf, buflen)) {
		DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d buflen %u\n",
		           dhd_ifname(&dhd->pub, ifidx), (int)sizeof(allmulti), buflen));
		MFREE(dhd->pub.osh, buf, buflen);
		return;
	}


	memset(&ioc, 0, sizeof(ioc));
	ioc.cmd = WLC_SET_VAR;
	ioc.buf = buf;
	ioc.len = buflen;
	ioc.set = TRUE;

	ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
	if (ret < 0) {
		DHD_ERROR(("%s: set allmulti %d failed\n",
		           dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
	}

	MFREE(dhd->pub.osh, buf, buflen);

	/* Finally, pick up the PROMISC flag as well, like the NIC driver does */

	allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
	allmulti = htol32(allmulti);

	memset(&ioc, 0, sizeof(ioc));
	ioc.cmd = WLC_SET_PROMISC;
	ioc.buf = &allmulti;
	ioc.len = sizeof(allmulti);
	ioc.set = TRUE;

	ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
	if (ret < 0) {
		DHD_ERROR(("%s: set promisc %d failed\n",
		           dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
	}
}

static int
_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
{
	char buf[32];
	wl_ioctl_t ioc;
	int ret;

	DHD_TRACE(("%s enter\n", __FUNCTION__));
	if (!bcm_mkiovar("cur_etheraddr", (char*)addr, ETHER_ADDR_LEN, buf, 32)) {
		DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n", dhd_ifname(&dhd->pub, ifidx)));
		return -1;
	}
	memset(&ioc, 0, sizeof(ioc));
	ioc.cmd = WLC_SET_VAR;
	ioc.buf = buf;
	ioc.len = 32;
	ioc.set = TRUE;

	ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
	if (ret < 0) {
		DHD_ERROR(("%s: set cur_etheraddr failed\n", dhd_ifname(&dhd->pub, ifidx)));
	} else {
		memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
	}

	return ret;
}

#ifdef SOFTAP
extern struct net_device *ap_net_dev;
extern struct semaphore ap_eth_sema;
#endif

static void
dhd_op_if(dhd_if_t *ifp)
{
	dhd_info_t	*dhd;
	int			ret = 0, err = 0;
#ifdef SOFTAP
	unsigned long flags;
#endif

	ASSERT(ifp && ifp->info && ifp->idx);	/* Virtual interfaces only */

	dhd = ifp->info;

	DHD_ERROR(("%s: idx %d, state %d\n", __FUNCTION__, ifp->idx, ifp->state));

	switch (ifp->state) {
	case WLC_E_IF_ADD:
		/*
		 * Delete the existing interface before overwriting it
		 * in case we missed the WLC_E_IF_DEL event.
		 */
		if (ifp->net != NULL) {
			DHD_ERROR(("%s: ERROR: netdev:%s already exists, try free & unregister \n",
			 __FUNCTION__, ifp->net->name));
			netif_stop_queue(ifp->net);
			unregister_netdev(ifp->net);
			free_netdev(ifp->net);
		}
		/* Allocate etherdev, including space for private structure */
		if (!(ifp->net = alloc_etherdev(sizeof(dhd)))) {
			DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__));
			ret = -ENOMEM;
		}
		if (ret == 0) {
			strcpy(ifp->net->name, ifp->name);
			memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
			if ((err = dhd_net_attach(&dhd->pub, ifp->idx)) != 0) {
				DHD_ERROR(("%s: dhd_net_attach failed, err %d\n",
					__FUNCTION__, err));
				ret = -EOPNOTSUPP;
			} else {
#ifdef SOFTAP
				 /* semaphore that the soft AP CODE waits on */
				flags = dhd_os_spin_lock(&dhd->pub);

				/* save ptr to wl0.1 netdev for use in wl_iw.c  */
				ap_net_dev = ifp->net;
				 /* signal to the SOFTAP 'sleeper' thread, wl0.1 is ready */
				up(&ap_eth_sema);
				dhd_os_spin_unlock(&dhd->pub, flags);
#endif
				DHD_TRACE(("\n ==== pid:%x, net_device for if:%s created ===\n\n",
					current->pid, ifp->net->name));
				ifp->state = 0;
			}
		}
		break;
	case WLC_E_IF_DEL:
		if (ifp->net != NULL) {
		    DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n", __FUNCTION__));
			netif_stop_queue(ifp->net);
			unregister_netdev(ifp->net);
			ret = DHD_DEL_IF;	/* Make sure the free_netdev() is called */
		}
		break;
	default:
		DHD_ERROR(("%s: bad op %d\n", __FUNCTION__, ifp->state));
		ASSERT(!ifp->state);
		break;
	}

	if (ret < 0) {
		if (ifp->net) {
			free_netdev(ifp->net);
		}
		dhd->iflist[ifp->idx] = NULL;
		MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
#ifdef SOFTAP
		flags = dhd_os_spin_lock(&dhd->pub);
		if (ifp->net == ap_net_dev)
			ap_net_dev = NULL;   /*  NULL  SOFTAP global wl0.1 as well */
		dhd_os_spin_unlock(&dhd->pub, flags);
#endif /*  SOFTAP */
	}
}

static int
_dhd_sysioc_thread(void *data)
{
	dhd_info_t *dhd = (dhd_info_t *)data;
	int i;
#ifdef SOFTAP
	bool in_ap = FALSE;
	unsigned long flags;
#endif

	DAEMONIZE("dhd_sysioc");

	while (down_interruptible(&dhd->sysioc_sem) == 0) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
		dhd_os_start_lock(&dhd->pub);
#endif 
		for (i = 0; i < DHD_MAX_IFS; i++) {
			if (dhd->iflist[i]) {
				DHD_TRACE(("%s: interface %d\n", __FUNCTION__, i));
#ifdef SOFTAP
				flags = dhd_os_spin_lock(&dhd->pub);
				in_ap = (ap_net_dev != NULL);
				dhd_os_spin_unlock(&dhd->pub, flags);
#endif /* SOFTAP */
				if (dhd->iflist[i]->state)
					dhd_op_if(dhd->iflist[i]);
#ifdef SOFTAP
				if (dhd->iflist[i] == NULL) {
					DHD_TRACE(("\n\n %s: interface %d just been removed,"
						"!\n\n", __FUNCTION__, i));
					continue;
				}

				if (in_ap && dhd->set_macaddress)  {
					DHD_TRACE(("attempt to set MAC for %s in AP Mode,"
						"blocked. \n", dhd->iflist[i]->net->name));
					dhd->set_macaddress = FALSE;
					continue;
				}

				if (in_ap && dhd->set_multicast)  {
					DHD_TRACE(("attempt to set MULTICAST list for %s"
					 "in AP Mode, blocked. \n", dhd->iflist[i]->net->name));
					dhd->set_multicast = FALSE;
					continue;
				}
#endif /* SOFTAP */
				if (dhd->set_multicast) {
					dhd->set_multicast = FALSE;
					_dhd_set_multicast_list(dhd, i);
				}
				if (dhd->set_macaddress) {
					dhd->set_macaddress = FALSE;
					_dhd_set_mac_address(dhd, i, &dhd->macvalue);
				}
			}
		}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
		dhd_os_start_unlock(&dhd->pub);
#endif 
	}
	DHD_TRACE(("%s: stopped\n", __FUNCTION__));
	complete_and_exit(&dhd->sysioc_exited, 0);
}

static int
dhd_set_mac_address(struct net_device *dev, void *addr)
{
	int ret = 0;

	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	struct sockaddr *sa = (struct sockaddr *)addr;
	int ifidx;

	ifidx = dhd_net2idx(dhd, dev);
	if (ifidx == DHD_BAD_IF)
		return -1;

	ASSERT(dhd->sysioc_pid >= 0);
	memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
	dhd->set_macaddress = TRUE;
	up(&dhd->sysioc_sem);

	return ret;
}

static void
dhd_set_multicast_list(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	int ifidx;

	ifidx = dhd_net2idx(dhd, dev);
	if (ifidx == DHD_BAD_IF)
		return;

	ASSERT(dhd->sysioc_pid >= 0);
	dhd->set_multicast = TRUE;
	up(&dhd->sysioc_sem);
}

int
dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
{
	int ret;
	dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);

	/* Reject if down */
	if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN)) {
		return -ENODEV;
	}

	/* Update multicast statistic */
	if (PKTLEN(dhdp->osh, pktbuf) >= ETHER_ADDR_LEN) {
		uint8 *pktdata = (uint8 *)PKTDATA(dhdp->osh, pktbuf);
		struct ether_header *eh = (struct ether_header *)pktdata;

		if (ETHER_ISMULTI(eh->ether_dhost))
			dhdp->tx_multicast++;
		if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
			atomic_inc(&dhd->pend_8021x_cnt);
	}

	/* Look into the packet and update the packet priority */
	if ((PKTPRIO(pktbuf) == 0))
		pktsetprio(pktbuf, FALSE);

	/* If the protocol uses a data header, apply it */
	dhd_prot_hdrpush(dhdp, ifidx, pktbuf);

	/* Use bus module to send data frame */
#ifdef BCMDBUS
	ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
#else
	WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
	ret = dhd_bus_txdata(dhdp->bus, pktbuf);
#endif /* BCMDBUS */

	return ret;
}

static int
dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
{
	int ret;
	void *pktbuf;
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
	int ifidx;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Reject if down */
	if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
		DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d \n",
			__FUNCTION__, dhd->pub.up, dhd->pub.busstate));
		netif_stop_queue(net);
		/* Send Event when bus down detected during data session */
		if (dhd->pub.busstate == DHD_BUS_DOWN)  {
			DHD_ERROR(("%s: Event RELOAD send up\n", __FUNCTION__));
			net_os_send_hang_message(net);
		}
		return -ENODEV;
	}

	ifidx = dhd_net2idx(dhd, net);
	if (ifidx == DHD_BAD_IF) {
		DHD_ERROR(("%s: bad ifidx %d\n", __FUNCTION__, ifidx));
		netif_stop_queue(net);
		return -ENODEV;
	}

	/* Make sure there's enough room for any header */
	if (skb_headroom(skb) < dhd->pub.hdrlen) {
		struct sk_buff *skb2;

		DHD_INFO(("%s: insufficient headroom\n",
		          dhd_ifname(&dhd->pub, ifidx)));
		dhd->pub.tx_realloc++;
		skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
		dev_kfree_skb(skb);
		if ((skb = skb2) == NULL) {
			DHD_ERROR(("%s: skb_realloc_headroom failed\n",
			           dhd_ifname(&dhd->pub, ifidx)));
			ret = -ENOMEM;
			goto done;
		}
	}

	/* Convert to packet */
	if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
		DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
		           dhd_ifname(&dhd->pub, ifidx)));
		dev_kfree_skb_any(skb);
		ret = -ENOMEM;
		goto done;
	}

	ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);


done:
	if (ret)
		dhd->pub.dstats.tx_dropped++;
	else
		dhd->pub.tx_packets++;

	/* Return ok: we always eat the packet */
	return 0;
}

void
dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
{
	struct net_device *net;
	dhd_info_t *dhd = dhdp->info;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	dhdp->txoff = state;
	ASSERT(dhd && dhd->iflist[ifidx]);
	net = dhd->iflist[ifidx]->net;
	if (state == ON)
		netif_stop_queue(net);
	else
		netif_wake_queue(net);
}

void
dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
{
	dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
	struct sk_buff *skb;
	uchar *eth;
	uint len;
	void * data, *pnext, *save_pktbuf;
	int i;
	dhd_if_t *ifp;
	wl_event_msg_t event;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	save_pktbuf = pktbuf;

	for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {

		pnext = PKTNEXT(dhdp->osh, pktbuf);
		PKTSETNEXT(wl->sh.osh, pktbuf, NULL);


		skb = PKTTONATIVE(dhdp->osh, pktbuf);

		/* Get the protocol, maintain skb around eth_type_trans()
		 * The main reason for this hack is for the limitation of
		 * Linux 2.4 where 'eth_type_trans' uses the 'net->hard_header_len'
		 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
		 * coping of the packet coming from the network stack to add
		 * BDC, Hardware header etc, during network interface registration
		 * we set the 'net->hard_header_len' to ETH_HLEN + extra space required
		 * for BDC, Hardware header etc. and not just the ETH_HLEN
		 */
		eth = skb->data;
		len = skb->len;

		ifp = dhd->iflist[ifidx];
		if (ifp == NULL)
			ifp = dhd->iflist[0];

		ASSERT(ifp);
		skb->dev = ifp->net;
		skb->protocol = eth_type_trans(skb, skb->dev);

		if (skb->pkt_type == PACKET_MULTICAST) {
			dhd->pub.rx_multicast++;
		}

		skb->data = eth;
		skb->len = len;

		/* Strip header, count, deliver upward */
		skb_pull(skb, ETH_HLEN);

		/* Process special event packets and then discard them */
		if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
			dhd_wl_host_event(dhd, &ifidx,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
			skb->mac_header,
#else
			skb->mac.raw,
#endif
			&event,
			&data);

		ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
		if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
			ifp = dhd->iflist[ifidx];

		if (ifp->net)
			ifp->net->last_rx = jiffies;

		dhdp->dstats.rx_bytes += skb->len;
		dhdp->rx_packets++; /* Local count */

		if (in_interrupt()) {
			netif_rx(skb);
		} else {
			/* If the receive is not processed inside an ISR,
			 * the softirqd must be woken explicitly to service
			 * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
			 * by netif_rx_ni(), but in earlier kernels, we need
			 * to do it manually.
			 */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0)
			netif_rx_ni(skb);
#else
			ulong flags;
			netif_rx(skb);
			local_irq_save(flags);
			RAISE_RX_SOFTIRQ();
			local_irq_restore(flags);
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0) */
		}
	}
}

void
dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
{
	/* Linux version has nothing to do */
	return;
}

void
dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
{
	uint ifidx;
	dhd_info_t *dhd = (dhd_info_t *)(dhdp->info);
	struct ether_header *eh;
	uint16 type;

	dhd_prot_hdrpull(dhdp, &ifidx, txp);

	eh = (struct ether_header *)PKTDATA(dhdp->osh, txp);
	type  = ntoh16(eh->ether_type);

	if (type == ETHER_TYPE_802_1X)
		atomic_dec(&dhd->pend_8021x_cnt);

}

static struct net_device_stats *
dhd_get_stats(struct net_device *net)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
	dhd_if_t *ifp;
	int ifidx;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	ifidx = dhd_net2idx(dhd, net);
	if (ifidx == DHD_BAD_IF)
		return NULL;

	ifp = dhd->iflist[ifidx];
	ASSERT(dhd && ifp);

	if (dhd->pub.up) {
		/* Use the protocol to get dongle stats */
		dhd_prot_dstats(&dhd->pub);
	}

	/* Copy dongle stats to net device stats */
	ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
	ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
	ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
	ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
	ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
	ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
	ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
	ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
	ifp->stats.multicast = dhd->pub.dstats.multicast;

	return &ifp->stats;
}

static int
dhd_watchdog_thread(void *data)
{
	dhd_info_t *dhd = (dhd_info_t *)data;
	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");

	/* This thread doesn't need any user-level access,
	 * so get rid of all our resources
	 */
#ifdef DHD_SCHED
	if (dhd_watchdog_prio > 0) {
		struct sched_param param;
		param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO)?
			dhd_watchdog_prio:(MAX_RT_PRIO-1);
		setScheduler(current, SCHED_FIFO, &param);
	}
#endif /* DHD_SCHED */

	DAEMONIZE("dhd_watchdog");

	/* Run until signal received */
	while (1) {
		if (down_interruptible (&dhd->watchdog_sem) == 0) {
			dhd_os_sdlock(&dhd->pub);
			if (dhd->pub.dongle_reset == FALSE) {
				DHD_TIMER(("%s:\n", __FUNCTION__));
				WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
				/* Call the bus module watchdog */
				dhd_bus_watchdog(&dhd->pub);

			/* Count the tick for reference */
			dhd->pub.tickcnt++;
			/* Reschedule the watchdog */
			if (dhd->wd_timer_valid)
				mod_timer(&dhd->timer, \
					jiffies + dhd_watchdog_ms * HZ / 1000);
				WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
			}
			dhd_os_sdunlock(&dhd->pub);
		} else {
			break;
		}
	}

	WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
	complete_and_exit(&dhd->watchdog_exited, 0);
}

static void
dhd_watchdog(ulong data)
{
	dhd_info_t *dhd = (dhd_info_t *)data;

	if (dhd->pub.dongle_reset) {
		return;
	}
	if (dhd->watchdog_pid >= 0) {
		up(&dhd->watchdog_sem);
		return;
	}
	dhd_os_sdlock(&dhd->pub);
	/* Call the bus module watchdog */
	dhd_bus_watchdog(&dhd->pub);

	/* Count the tick for reference */
	dhd->pub.tickcnt++;

	/* Reschedule the watchdog */
	if (dhd->wd_timer_valid)
		mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
	dhd_os_sdunlock(&dhd->pub);
}

static int
dhd_dpc_thread(void *data)
{
	dhd_info_t *dhd = (dhd_info_t *)data;

	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
	/* This thread doesn't need any user-level access,
	 * so get rid of all our resources
	 */
#ifdef DHD_SCHED
	if (dhd_dpc_prio > 0)
	{
		struct sched_param param;
		param.sched_priority = (dhd_dpc_prio < MAX_RT_PRIO)?dhd_dpc_prio:(MAX_RT_PRIO-1);
		setScheduler(current, SCHED_FIFO, &param);
	}
#endif /* DHD_SCHED */

	DAEMONIZE("dhd_dpc");

	/* Run until signal received */
	while (1) {
		if (down_interruptible(&dhd->dpc_sem) == 0) {
			/* Call bus dpc unless it indicated down (then clean stop) */
			if (dhd->pub.busstate != DHD_BUS_DOWN) {
				WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
				if (dhd_bus_dpc(dhd->pub.bus)) {
					up(&dhd->dpc_sem);
					WAKE_LOCK_TIMEOUT(&dhd->pub, WAKE_LOCK_TMOUT, 25);
				}
				WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
			} else {
				dhd_bus_stop(dhd->pub.bus, TRUE);
			}
		}
		else
			break;
	}

	WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);

	complete_and_exit(&dhd->dpc_exited, 0);
}

static void
dhd_dpc(ulong data)
{
	dhd_info_t *dhd;

	dhd = (dhd_info_t *)data;

	/* Call bus dpc unless it indicated down (then clean stop) */
	if (dhd->pub.busstate != DHD_BUS_DOWN) {
		if (dhd_bus_dpc(dhd->pub.bus))
			tasklet_schedule(&dhd->tasklet);
	} else {
		dhd_bus_stop(dhd->pub.bus, TRUE);
	}
}

void
dhd_sched_dpc(dhd_pub_t *dhdp)
{
	dhd_info_t *dhd = (dhd_info_t *)dhdp->info;

	if (dhd->dpc_pid >= 0) {
		up(&dhd->dpc_sem);
		return;
	}

	tasklet_schedule(&dhd->tasklet);
}

#ifdef TOE
/* Retrieve current toe component enables, which are kept as a bitmap in toe_ol iovar */
static int
dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
{
	wl_ioctl_t ioc;
	char buf[32];
	int ret;

	memset(&ioc, 0, sizeof(ioc));

	ioc.cmd = WLC_GET_VAR;
	ioc.buf = buf;
	ioc.len = (uint)sizeof(buf);
	ioc.set = FALSE;

	strcpy(buf, "toe_ol");
	if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
		/* Check for older dongle image that doesn't support toe_ol */
		if (ret == -EIO) {
			DHD_ERROR(("%s: toe not supported by device\n",
				dhd_ifname(&dhd->pub, ifidx)));
			return -EOPNOTSUPP;
		}

		DHD_INFO(("%s: could not get toe_ol: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
		return ret;
	}

	memcpy(toe_ol, buf, sizeof(uint32));
	return 0;
}

/* Set current toe component enables in toe_ol iovar, and set toe global enable iovar */
static int
dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
{
	wl_ioctl_t ioc;
	char buf[32];
	int toe, ret;

	memset(&ioc, 0, sizeof(ioc));

	ioc.cmd = WLC_SET_VAR;
	ioc.buf = buf;
	ioc.len = (uint)sizeof(buf);
	ioc.set = TRUE;

	/* Set toe_ol as requested */

	strcpy(buf, "toe_ol");
	memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32));

	if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
		DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
			dhd_ifname(&dhd->pub, ifidx), ret));
		return ret;
	}

	/* Enable toe globally only if any components are enabled. */

	toe = (toe_ol != 0);

	strcpy(buf, "toe");
	memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32));

	if ((ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
		DHD_ERROR(("%s: could not set toe: ret=%d\n", dhd_ifname(&dhd->pub, ifidx), ret));
		return ret;
	}

	return 0;
}
#endif /* TOE */

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
static void dhd_ethtool_get_drvinfo(struct net_device *net,
                                    struct ethtool_drvinfo *info)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);

	sprintf(info->driver, "wl");
	sprintf(info->version, "%lu", dhd->pub.drv_version);
}

struct ethtool_ops dhd_ethtool_ops = {
	.get_drvinfo = dhd_ethtool_get_drvinfo
};
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */


#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
static int
dhd_ethtool(dhd_info_t *dhd, void *uaddr)
{
	struct ethtool_drvinfo info;
	char drvname[sizeof(info.driver)];
	uint32 cmd;
#ifdef TOE
	struct ethtool_value edata;
	uint32 toe_cmpnt, csum_dir;
	int ret;
#endif

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* all ethtool calls start with a cmd word */
	if (copy_from_user(&cmd, uaddr, sizeof (uint32)))
		return -EFAULT;

	switch (cmd) {
	case ETHTOOL_GDRVINFO:
		/* Copy out any request driver name */
		if (copy_from_user(&info, uaddr, sizeof(info)))
			return -EFAULT;
		strncpy(drvname, info.driver, sizeof(info.driver));
		drvname[sizeof(info.driver)-1] = '\0';

		/* clear struct for return */
		memset(&info, 0, sizeof(info));
		info.cmd = cmd;

		/* if dhd requested, identify ourselves */
		if (strcmp(drvname, "?dhd") == 0) {
			sprintf(info.driver, "dhd");
			strcpy(info.version, EPI_VERSION_STR);
		}

		/* otherwise, require dongle to be up */
		else if (!dhd->pub.up) {
			DHD_ERROR(("%s: dongle is not up\n", __FUNCTION__));
			return -ENODEV;
		}

		/* finally, report dongle driver type */
		else if (dhd->pub.iswl)
			sprintf(info.driver, "wl");
		else
			sprintf(info.driver, "xx");

		sprintf(info.version, "%lu", dhd->pub.drv_version);
		if (copy_to_user(uaddr, &info, sizeof(info)))
			return -EFAULT;
		DHD_CTL(("%s: given %*s, returning %s\n", __FUNCTION__,
		         (int)sizeof(drvname), drvname, info.driver));
		break;

#ifdef TOE
	/* Get toe offload components from dongle */
	case ETHTOOL_GRXCSUM:
	case ETHTOOL_GTXCSUM:
		if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
			return ret;

		csum_dir = (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

		edata.cmd = cmd;
		edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;

		if (copy_to_user(uaddr, &edata, sizeof(edata)))
			return -EFAULT;
		break;

	/* Set toe offload components in dongle */
	case ETHTOOL_SRXCSUM:
	case ETHTOOL_STXCSUM:
		if (copy_from_user(&edata, uaddr, sizeof(edata)))
			return -EFAULT;

		/* Read the current settings, update and write back */
		if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
			return ret;

		csum_dir = (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;

		if (edata.data != 0)
			toe_cmpnt |= csum_dir;
		else
			toe_cmpnt &= ~csum_dir;

		if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0)
			return ret;

		/* If setting TX checksum mode, tell Linux the new mode */
		if (cmd == ETHTOOL_STXCSUM) {
			if (edata.data)
				dhd->iflist[0]->net->features |= NETIF_F_IP_CSUM;
			else
				dhd->iflist[0]->net->features &= ~NETIF_F_IP_CSUM;
		}

		break;
#endif /* TOE */

	default:
		return -EOPNOTSUPP;
	}

	return 0;
}
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */

static int
dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
	dhd_ioctl_t ioc;
	int bcmerror = 0;
	int buflen = 0;
	void *buf = NULL;
	uint driver = 0;
	int ifidx;
	bool is_set_key_cmd;

	ifidx = dhd_net2idx(dhd, net);
	DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __FUNCTION__, ifidx, cmd));

	if (ifidx == DHD_BAD_IF)
		return -1;

#if defined(CONFIG_WIRELESS_EXT)
	/* linux wireless extensions */
	if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
		/* may recurse, do NOT lock */
		return wl_iw_ioctl(net, ifr, cmd);
	}
#endif /* defined(CONFIG_WIRELESS_EXT) */

#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2)
	if (cmd == SIOCETHTOOL)
		return (dhd_ethtool(dhd, (void*)ifr->ifr_data));
#endif /* LINUX_VERSION_CODE > KERNEL_VERSION(2, 4, 2) */

	if (cmd != SIOCDEVPRIVATE)
		return -EOPNOTSUPP;

	memset(&ioc, 0, sizeof(ioc));

	/* Copy the ioc control structure part of ioctl request */
	if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
		bcmerror = -BCME_BADADDR;
		goto done;
	}

	/* Copy out any buffer passed */
	if (ioc.buf) {
		buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
		/* optimization for direct ioctl calls from kernel */
		/*
		if (segment_eq(get_fs(), KERNEL_DS)) {
			buf = ioc.buf;
		} else {
		*/
		{
			if (!(buf = (char*)MALLOC(dhd->pub.osh, buflen))) {
				bcmerror = -BCME_NOMEM;
				goto done;
			}
			if (copy_from_user(buf, ioc.buf, buflen)) {
				bcmerror = -BCME_BADADDR;
				goto done;
			}
		}
	}

	/* To differentiate between wl and dhd read 4 more byes */
	if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
		sizeof(uint)) != 0)) {
		bcmerror = -BCME_BADADDR;
		goto done;
	}

	if (!capable(CAP_NET_ADMIN)) {
		bcmerror = -BCME_EPERM;
		goto done;
	}

	/* check for local dhd ioctl and handle it */
	if (driver == DHD_IOCTL_MAGIC) {
		bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
		if (bcmerror)
			dhd->pub.bcmerror = bcmerror;
		goto done;
	}

	/* send to dongle (must be up, and wl) */
	if (
			(dhd->pub.busstate != DHD_BUS_DATA)) {
		DHD_ERROR(("%s DONGLE_DOWN,__FUNCTION__\n", __FUNCTION__));
		bcmerror = BCME_DONGLE_DOWN;
		goto done;
	}

	if (!dhd->pub.iswl) {
		bcmerror = BCME_DONGLE_DOWN;
		goto done;
	}

	/* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
	 * prevent M4 encryption.
	 */
	is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
	                 ((ioc.cmd == WLC_SET_VAR) &&
	                        !(strncmp("wsec_key", ioc.buf, 9))) ||
	                 ((ioc.cmd == WLC_SET_VAR) &&
	                        !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
	if (is_set_key_cmd) {
		dhd_wait_pend8021x(net);
	}
	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
	WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);

	bcmerror = dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);

	WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
	WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
	if ((bcmerror == -ETIMEDOUT) || ((dhd->pub.busstate == DHD_BUS_DOWN) && \
			(!dhd->pub.dongle_reset))) {
		DHD_ERROR(("%s: Event HANG send up\n", __FUNCTION__));
		net_os_send_hang_message(net);
	}
done:
	if (!bcmerror && buf && ioc.buf) {
		if (copy_to_user(ioc.buf, buf, buflen))
			bcmerror = -EFAULT;
	}

	if (buf)
		MFREE(dhd->pub.osh, buf, buflen);

	return OSL_ERROR(bcmerror);
}

static int
dhd_stop(struct net_device *net)
{
#if !defined(IGNORE_ETH0_DOWN)
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);

	DHD_TRACE(("%s: Enter %s\n", __FUNCTION__, net->name));
	if (dhd->pub.up == 0) {
		return 0;
	}

	/* Set state and stop OS transmissions */
	dhd->pub.up = 0;
	netif_stop_queue(net);
#else
	DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation ...\n", __FUNCTION__));
#endif /* !defined(IGNORE_ETH0_DOWN) */

	OLD_MOD_DEC_USE_COUNT;
	return 0;
}

static int
dhd_open(struct net_device *net)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(net);
#ifdef TOE
	uint32 toe_ol;
#endif
	int ifidx;
	int32 ret = 0;

	/*  Force start if ifconfig_up gets called before START command */
	wl_control_wl_start(net);

	ifidx = dhd_net2idx(dhd, net);

	DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

	if ((dhd->iflist[ifidx]) && (dhd->iflist[ifidx]->state == WLC_E_IF_DEL)) {
		DHD_ERROR(("%s: Error: called when IF already deleted\n", __FUNCTION__));
		return -1;
	}

	if (ifidx == 0) { /* do it only for primary eth0 */

		atomic_set(&dhd->pend_8021x_cnt, 0);

	memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);

#ifdef TOE
	/* Get current TOE mode from dongle */
	if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0 && (toe_ol & TOE_TX_CSUM_OL) != 0)
		dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
	else
		dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
#endif
	}
	/* Allow transmit calls */
	netif_start_queue(net);
	dhd->pub.up = 1;


	OLD_MOD_INC_USE_COUNT;
	return ret;
}

osl_t *
dhd_osl_attach(void *pdev, uint bustype)
{
	return osl_attach(pdev, bustype, TRUE);
}

void
dhd_osl_detach(osl_t *osh)
{
	if (MALLOCED(osh)) {
		DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __FUNCTION__, MALLOCED(osh)));
	}
	osl_detach(osh);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
	up(&dhd_registration_sem);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

int
dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
	uint8 *mac_addr, uint32 flags, uint8 bssidx)
{
	dhd_if_t *ifp;

	DHD_TRACE(("%s: idx %d, handle->%p\n", __FUNCTION__, ifidx, handle));

	ASSERT(dhd && (ifidx < DHD_MAX_IFS));

	ifp = dhd->iflist[ifidx];
	if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) {
		DHD_ERROR(("%s: OOM - dhd_if_t\n", __FUNCTION__));
		return -ENOMEM;
	}

	memset(ifp, 0, sizeof(dhd_if_t));
	ifp->info = dhd;
	dhd->iflist[ifidx] = ifp;
	strncpy(ifp->name, name, IFNAMSIZ);
	ifp->name[IFNAMSIZ] = '\0';
	if (mac_addr != NULL)
		memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);

	if (handle == NULL) {
		ifp->state = WLC_E_IF_ADD;
		ifp->idx = ifidx;
		ASSERT(dhd->sysioc_pid >= 0);
		up(&dhd->sysioc_sem);
	} else
		ifp->net = (struct net_device *)handle;

	return 0;
}

void
dhd_del_if(dhd_info_t *dhd, int ifidx)
{
	dhd_if_t *ifp;

	DHD_TRACE(("%s: idx %d\n", __FUNCTION__, ifidx));

	ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
	ifp = dhd->iflist[ifidx];
	if (!ifp) {
		DHD_ERROR(("%s: Null interface\n", __FUNCTION__));
		return;
	}

	ifp->state = WLC_E_IF_DEL;
	ifp->idx = ifidx;
	ASSERT(dhd->sysioc_pid >= 0);
	up(&dhd->sysioc_sem);
}

dhd_pub_t *
dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
{
	dhd_info_t *dhd = NULL;
	struct net_device *net;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));
	/* updates firmware nvram path if it was provided as module paramters */
	if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
		strcpy(fw_path, firmware_path);
	if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
		strcpy(nv_path, nvram_path);

	/* Allocate etherdev, including space for private structure */
	if (!(net = alloc_etherdev(sizeof(dhd)))) {
		DHD_ERROR(("%s: OOM - alloc_etherdev\n", __FUNCTION__));
		goto fail;
	}

	// set wifi interface name wlan0, we use wlan0, not eth0. 
	sprintf(net->name, "wlan0");
	/* Allocate primary dhd_info */
	if (!(dhd = MALLOC(osh, sizeof(dhd_info_t)))) {
		DHD_ERROR(("%s: OOM - alloc dhd_info\n", __FUNCTION__));
		goto fail;
	}

	memset(dhd, 0, sizeof(dhd_info_t));

	/*
	 * Save the dhd_info into the priv
	 */
	memcpy(netdev_priv(net), &dhd, sizeof(dhd));
	dhd->pub.osh = osh;

	/* Set network interface name if it was provided as module parameter */
	if (iface_name[0]) {
		int len;
		char ch;
		strncpy(net->name, iface_name, IFNAMSIZ);
		net->name[IFNAMSIZ - 1] = 0;
		len = strlen(net->name);
		ch = net->name[len - 1];
		if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
			strcat(net->name, "%d");
	}

	if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) == DHD_BAD_IF)
		goto fail;

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
	net->open = NULL;
#else
	net->netdev_ops = NULL;
#endif
	init_MUTEX(&dhd->proto_sem);
	/* Initialize other structure content */
	init_waitqueue_head(&dhd->ioctl_resp_wait);
	init_waitqueue_head(&dhd->ctrl_wait);

	/* Initialize the spinlocks */
	spin_lock_init(&dhd->sdlock);
	spin_lock_init(&dhd->txqlock);
	spin_lock_init(&dhd->dhd_lock);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_init(&dhd->wl_start_lock);
#endif 
	/* Link to info module */
	dhd->pub.info = dhd;

	/* Link to bus module */
	dhd->pub.bus = bus;
	dhd->pub.hdrlen = bus_hdrlen;

	/* Attach and link in the protocol */
	if (dhd_prot_attach(&dhd->pub) != 0) {
		DHD_ERROR(("dhd_prot_attach failed\n"));
		goto fail;
	}
#if defined(CONFIG_WIRELESS_EXT)
	/* Attach and link in the iw */
	if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
		DHD_ERROR(("wl_iw_attach failed\n"));
		goto fail;
	}
#endif /* defined(CONFIG_WIRELESS_EXT) */


	/* Set up the watchdog timer */
	init_timer(&dhd->timer);
	dhd->timer.data = (ulong)dhd;
	dhd->timer.function = dhd_watchdog;

	/* Initialize thread based operation and lock */
	init_MUTEX(&dhd->sdsem);
	if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)) {
		dhd->threads_only = TRUE;
	}
	else {
		dhd->threads_only = FALSE;
	}

	if (dhd_dpc_prio >= 0) {
		/* Initialize watchdog thread */
		sema_init(&dhd->watchdog_sem, 0);
		init_completion(&dhd->watchdog_exited);
		dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0);
	} else {
		dhd->watchdog_pid = -1;
	}

	/* Set up the bottom half handler */
	if (dhd_dpc_prio >= 0) {
		/* Initialize DPC thread */
		sema_init(&dhd->dpc_sem, 0);
		init_completion(&dhd->dpc_exited);
		dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0);
	} else {
		tasklet_init(&dhd->tasklet, dhd_dpc, (ulong)dhd);
		dhd->dpc_pid = -1;
	}

	if (dhd_sysioc) {
		sema_init(&dhd->sysioc_sem, 0);
		init_completion(&dhd->sysioc_exited);
		dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0);
	} else {
		dhd->sysioc_pid = -1;
	}

	/*
	 * Save the dhd_info into the priv
	 */
	memcpy(netdev_priv(net), &dhd, sizeof(dhd));

#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
	g_bus = bus;
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) && 1
	register_pm_notifier(&dhd_sleep_pm_notifier);
#endif /*  (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
	/* && defined(DHD_GPL) */
	/* Init lock suspend to prevent kernel going to suspend */
	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT, "dhd_wake_lock_link_dw_event");
	WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT, "dhd_wake_lock_link_pno_find_event");
#ifdef CONFIG_HAS_EARLYSUSPEND
	dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
	dhd->early_suspend.suspend = dhd_early_suspend;
	dhd->early_suspend.resume = dhd_late_resume;
	register_early_suspend(&dhd->early_suspend);
#endif

	return &dhd->pub;

fail:
	if (net)
		free_netdev(net);
	if (dhd)
		dhd_detach(&dhd->pub);

	return NULL;
}


int
dhd_bus_start(dhd_pub_t *dhdp)
{
	int ret = -1;
	dhd_info_t *dhd = (dhd_info_t*)dhdp->info;
#ifdef EMBEDDED_PLATFORM
	char iovbuf[WL_EVENTING_MASK_LEN + 12];	/*  Room for "event_msgs" + '\0' + bitvec  */
#endif /* EMBEDDED_PLATFORM */

	ASSERT(dhd);

	DHD_TRACE(("%s: \n", __FUNCTION__));

	/* try to download image and nvram to the dongle */
	if  (dhd->pub.busstate == DHD_BUS_DOWN) {
		WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
		WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
		if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
		                                fw_path, nv_path))) {
			DHD_ERROR(("%s: dhdsdio_probe_download failed. firmware = %s nvram = %s\n",
			           __FUNCTION__, fw_path, nv_path));
			WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
			WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
			return -1;
		}

		WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
		WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
	}

	/* Start the watchdog timer */
	dhd->pub.tickcnt = 0;
	dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);

	/* Bring up the bus */
	if ((ret = dhd_bus_init(&dhd->pub, TRUE)) != 0) {
		DHD_ERROR(("%s, dhd_bus_init failed %d\n", __FUNCTION__, ret));
		return ret;
	}
#if defined(OOB_INTR_ONLY)
	/* Host registration for OOB interrupt */
	if (bcmsdh_register_oob_intr(dhdp)) {
		dhd->wd_timer_valid = FALSE;
		del_timer_sync(&dhd->timer);
		DHD_ERROR(("%s Host failed to resgister for OOB\n", __FUNCTION__));
		return -ENODEV;
	}

	/* Enable oob at firmware */
	dhd_enable_oob_intr(dhd->pub.bus, TRUE);
#endif /* defined(OOB_INTR_ONLY) */

	/* If bus is not ready, can't come up */
	if (dhd->pub.busstate != DHD_BUS_DATA) {
		dhd->wd_timer_valid = FALSE;
		del_timer_sync(&dhd->timer);
		DHD_ERROR(("%s failed bus is not ready\n", __FUNCTION__));
		return -ENODEV;
	}

#ifdef EMBEDDED_PLATFORM
	bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf, sizeof(iovbuf));
	dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
	bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);

	setbit(dhdp->eventmask, WLC_E_SET_SSID);
	setbit(dhdp->eventmask, WLC_E_PRUNE);
	setbit(dhdp->eventmask, WLC_E_AUTH);
	setbit(dhdp->eventmask, WLC_E_REASSOC);
	setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
	setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
	setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
	setbit(dhdp->eventmask, WLC_E_DISASSOC);
	setbit(dhdp->eventmask, WLC_E_JOIN);
	setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
	setbit(dhdp->eventmask, WLC_E_PSK_SUP);
	setbit(dhdp->eventmask, WLC_E_LINK);
	setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
	setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
	setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
	setbit(dhdp->eventmask, WLC_E_TXFAIL);
	setbit(dhdp->eventmask, WLC_E_JOIN_START);
	setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
	setbit(dhdp->eventmask, WLC_E_RELOAD);
#ifdef PNO_SUPPORT
	setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
#endif /* PNO_SUPPORT */

/* enable dongle roaming event */
	setbit(dhdp->eventmask, WLC_E_ROAM);

	dhdp->pktfilter_count = 1;
	/* Setup filter to allow only unicast */
	dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
#endif /* EMBEDDED_PLATFORM */

	/* Bus is ready, do any protocol initialization */
	if ((ret = dhd_prot_init(&dhd->pub)) < 0)
		return ret;

	return 0;
}

int
dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len, int set)
{
	char buf[strlen(name) + 1 + cmd_len];
	int len = sizeof(buf);
	wl_ioctl_t ioc;
	int ret;

	len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);

	memset(&ioc, 0, sizeof(ioc));

	ioc.cmd = set? WLC_SET_VAR : WLC_GET_VAR;
	ioc.buf = buf;
	ioc.len = len;
	ioc.set = set;

	ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
	if (!set && ret >= 0)
		memcpy(cmd_buf, buf, cmd_len);

	return ret;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31))
static struct net_device_ops dhd_ops_pri = {
	.ndo_open = dhd_open,
	.ndo_stop = dhd_stop,
	.ndo_get_stats = dhd_get_stats,
	.ndo_do_ioctl = dhd_ioctl_entry,
	.ndo_start_xmit = dhd_start_xmit,
	.ndo_set_mac_address = dhd_set_mac_address,
	.ndo_set_multicast_list = dhd_set_multicast_list
};

static struct net_device_ops dhd_ops_virt = {
	.ndo_get_stats = dhd_get_stats,
	.ndo_do_ioctl = dhd_ioctl_entry,
	.ndo_start_xmit = dhd_start_xmit,
	.ndo_set_mac_address = dhd_set_mac_address,
	.ndo_set_multicast_list = dhd_set_multicast_list
};
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)) */
int
dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
{
	dhd_info_t *dhd = (dhd_info_t *)dhdp->info;
	struct net_device *net;
	uint8 temp_addr[ETHER_ADDR_LEN] = { 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33 };

	DHD_TRACE(("%s: ifidx %d\n", __FUNCTION__, ifidx));

	ASSERT(dhd && dhd->iflist[ifidx]);

	net = dhd->iflist[ifidx]->net;
	ASSERT(net);

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
	ASSERT(!net->open);
	net->get_stats = dhd_get_stats;
	net->do_ioctl = dhd_ioctl_entry;
	net->hard_start_xmit = dhd_start_xmit;
	net->set_mac_address = dhd_set_mac_address;
	net->set_multicast_list = dhd_set_multicast_list;
	net->open = net->stop = NULL;
#else
	ASSERT(!net->netdev_ops);
	net->netdev_ops = &dhd_ops_virt;
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
		net->open = dhd_open;
		net->stop = dhd_stop;
#else
		net->netdev_ops = &dhd_ops_pri;
#endif

	/*
	 * We have to use the primary MAC for virtual interfaces
	 */
	if (ifidx != 0) {
		/* for virtual interfaces use the primary MAC  */
		memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);

	}

	if (ifidx == 1) {
		DHD_TRACE(("%s ACCESS POINT MAC: \n", __FUNCTION__));
		/*  ACCESSPOINT INTERFACE CASE */
		temp_addr[0] |= 0X02;  /* set bit 2 , - Locally Administered address  */

	}
	net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24)
	net->ethtool_ops = &dhd_ethtool_ops;
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 24) */

#if defined(CONFIG_WIRELESS_EXT)
#if WIRELESS_EXT < 19
	net->get_wireless_stats = dhd_get_wireless_stats;
#endif /* WIRELESS_EXT < 19 */
#if WIRELESS_EXT > 12
	net->wireless_handlers = (struct iw_handler_def *)&wl_iw_handler_def;
#endif /* WIRELESS_EXT > 12 */
#endif /* defined(CONFIG_WIRELESS_EXT) */


	dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;

	memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);

	if (register_netdev(net) != 0) {
		DHD_ERROR(("%s: couldn't register the net device\n", __FUNCTION__));
		goto fail;
	}

	printf("%s: Broadcom Dongle Host Driver mac=%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", net->name,
	       dhd->pub.mac.octet[0], dhd->pub.mac.octet[1], dhd->pub.mac.octet[2],
	       dhd->pub.mac.octet[3], dhd->pub.mac.octet[4], dhd->pub.mac.octet[5]);

#if defined(CONFIG_WIRELESS_EXT)
#if defined(CONFIG_FIRST_SCAN)
#ifdef SOFTAP
	if (ifidx == 0)
		/* Don't call for SOFTAP Interface in SOFTAP MODE */
		wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#else
		wl_iw_iscan_set_scan_broadcast_prep(net, 1);
#endif /* SOFTAP */
#endif /* CONFIG_FIRST_SCAN */
#endif /* CONFIG_WIRELESS_EXT */


#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
	up(&dhd_registration_sem);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
	return 0;

fail:
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
	net->open = NULL;
#else
	net->netdev_ops = NULL;
#endif
	return BCME_ERROR;
}

void
dhd_bus_detach(dhd_pub_t *dhdp)
{
	dhd_info_t *dhd;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (dhdp) {
		dhd = (dhd_info_t *)dhdp->info;
		if (dhd) {
			/* Stop the protocol module */
			dhd_prot_stop(&dhd->pub);

			/* Stop the bus module */
			dhd_bus_stop(dhd->pub.bus, TRUE);
#if defined(OOB_INTR_ONLY)
			bcmsdh_unregister_oob_intr();
#endif /* defined(OOB_INTR_ONLY) */

			/* Clear the watchdog timer */
			dhd->wd_timer_valid = FALSE;
			del_timer_sync(&dhd->timer);
		}
	}
}

void
dhd_detach(dhd_pub_t *dhdp)
{
	dhd_info_t *dhd;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	if (dhdp) {
		dhd = (dhd_info_t *)dhdp->info;
		if (dhd) {
			dhd_if_t *ifp;
			int i;

#if defined(CONFIG_HAS_EARLYSUSPEND)
		if (dhd->early_suspend.suspend)
			unregister_early_suspend(&dhd->early_suspend);
#endif	/* defined(CONFIG_HAS_EARLYSUSPEND) */

#if defined(HUAWEI_QUICK_TOGGLE_WIFI)
#if defined(CONFIG_WIRELESS_EXT)
			/* Attach and link in the iw */
			wl_iw_detach();
#endif     /* (CONFIG_WIRELESS_EXT) */
			if (dhd->sysioc_pid >= 0) {
				KILL_PROC(dhd->sysioc_pid, SIGTERM);
				wait_for_completion(&dhd->sysioc_exited);
			}
#endif

			for (i = 1; i < DHD_MAX_IFS; i++)
				if (dhd->iflist[i]) {
					dhd->iflist[i]->state = WLC_E_IF_DEL;
					dhd->iflist[i]->idx = i;
					dhd_op_if(dhd->iflist[i]);
				}

			ifp = dhd->iflist[0];
			ASSERT(ifp);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31))
			if (ifp->net->open) {
#else
			if (ifp->net->netdev_ops == &dhd_ops_pri) {
#endif
				dhd_stop(ifp->net);
				unregister_netdev(ifp->net);
			}


		if (dhd->watchdog_pid >= 0)
		{
			KILL_PROC(dhd->watchdog_pid, SIGTERM);
			wait_for_completion(&dhd->watchdog_exited);
		}

		if (dhd->dpc_pid >= 0)
		{
			KILL_PROC(dhd->dpc_pid, SIGTERM);
			wait_for_completion(&dhd->dpc_exited);
		}
		else
		tasklet_kill(&dhd->tasklet);

#if !defined(HUAWEI_QUICK_TOGGLE_WIFI)
		if (dhd->sysioc_pid >= 0) {
			KILL_PROC(dhd->sysioc_pid, SIGTERM);
			wait_for_completion(&dhd->sysioc_exited);
		}
#endif

		dhd_bus_detach(dhdp);

		if (dhdp->prot)
			dhd_prot_detach(dhdp);

#if !defined(HUAWEI_QUICK_TOGGLE_WIFI)
#if defined(CONFIG_WIRELESS_EXT)
		/* Attach and link in the iw */
		wl_iw_detach();
#endif
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) && 1
		unregister_pm_notifier(&dhd_sleep_pm_notifier);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
	/* && defined(DHD_GPL) */
		WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
		WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
		WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
		free_netdev(ifp->net);
		MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
		MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
	}
}
}
static void __exit
dhd_module_cleanup(void)
{
	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	dhd_bus_unregister();
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
	wifi_del_dev();
#endif
	/* Call customer gpio to turn off power with WL_REG_ON signal */
#ifdef CUSTOMER_HW
	qsd8x50_wlan_set_carddetect(0);
#endif
	dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
}


static int __init
dhd_module_init(void)
{
	int error;

	DHD_TRACE(("%s: Enter\n", __FUNCTION__));

	/* Sanity check on the module parameters */
	do {
		/* Both watchdog and DPC as tasklets are ok */
		if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
			break;

		/* If both watchdog and DPC are threads, TX must be deferred */
		if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0) && dhd_deferred_tx)
			break;

		DHD_ERROR(("Invalid module parameters.\n"));
		return -EINVAL;
	} while (0);
	/* Call customer gpio to turn on power with WL_REG_ON signal */
	dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
#ifdef CUSTOMER_HW
    qsd8x50_wlan_set_carddetect(1);
#endif

#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
	sema_init(&wifi_control_sem, 0);

	error = wifi_add_dev();
	if (error) {
		DHD_ERROR(("%s: platform_driver_register failed\n", __FUNCTION__));
		goto faild;
	}

	/* Waiting callback after platform_driver_register is done or exit with error */
	if (down_timeout(&wifi_control_sem,  msecs_to_jiffies(5000)) != 0) {
		printk("%s: platform_driver_register timeout\n", __FUNCTION__);
		/* renove device */
		wifi_del_dev();
		goto faild;
	}
#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
	sema_init(&dhd_registration_sem, 0);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */

	error = dhd_bus_register();

	if (!error)
		printf("\n%s\n", dhd_version);
	else {
		DHD_ERROR(("%s: sdio_register_driver failed\n", __FUNCTION__));
		goto faild;
	}
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
	/*
	 * Wait till MMC sdio_register_driver callback called and made driver attach.
	 * It's needed to make sync up exit from dhd insmod  and
	 * Kernel MMC sdio device callback registration
	 */
	if (down_timeout(&dhd_registration_sem,  msecs_to_jiffies(DHD_REGISTRATION_TIMEOUT)) != 0) {
		error = -EINVAL;
		DHD_ERROR(("%s: sdio_register_driver timeout\n", __FUNCTION__));
		dhd_bus_unregister();
#ifdef CUSTOMER_HW
        goto faild;
#endif
	}
#endif
	return error;

faild:
	/* turn off power and exit */
#ifdef CUSTOMER_HW
    qsd8x50_wlan_set_carddetect(0);
#endif
	dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
	return -EINVAL;
}

module_init(dhd_module_init);
module_exit(dhd_module_cleanup);

/*
 * OS specific functions required to implement DHD driver in OS independent way
 */
int
dhd_os_proto_block(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (dhd) {
		down(&dhd->proto_sem);
		return 1;
	}
	return 0;
}

int
dhd_os_proto_unblock(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (dhd) {
		up(&dhd->proto_sem);
		return 1;
	}

	return 0;
}

unsigned int
dhd_os_get_ioctl_resp_timeout(void)
{
	return ((unsigned int)dhd_ioctl_timeout_msec);
}

void
dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
{
	dhd_ioctl_timeout_msec = (int)timeout_msec;
}

int
dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);
	DECLARE_WAITQUEUE(wait, current);
	int timeout = dhd_ioctl_timeout_msec;

	/* Convert timeout in millsecond to jiffies */
	timeout = timeout * HZ / 1000;

	/* Wait until control frame is available */
	add_wait_queue(&dhd->ioctl_resp_wait, &wait);
	set_current_state(TASK_INTERRUPTIBLE);
	smp_mb();
	while (!(*condition) && (!signal_pending(current) && timeout)) {
		timeout = schedule_timeout(timeout);
		smp_mb();
	}
	if (signal_pending(current))
		*pending = TRUE;

	set_current_state(TASK_RUNNING);
	remove_wait_queue(&dhd->ioctl_resp_wait, &wait);

	return timeout;
}

int
dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (waitqueue_active(&dhd->ioctl_resp_wait)) {
		wake_up_interruptible(&dhd->ioctl_resp_wait);
	}

	return 0;
}

void
dhd_os_wd_timer(void *bus, uint wdtick)
{
	dhd_pub_t *pub = bus;
	dhd_info_t *dhd = (dhd_info_t *)pub->info;
	unsigned long flags;
	int del_timer_flag = FALSE;

	flags = dhd_os_spin_lock(pub);


	/* don't start the wd until fw is loaded */
	if (pub->busstate != DHD_BUS_DOWN) {
		if (wdtick) {
			dhd_watchdog_ms = (uint)wdtick;
			dhd->wd_timer_valid = TRUE;
			/* Re arm the timer, at last watchdog period */
			mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
		} else if (dhd->wd_timer_valid == TRUE) {
			/* Totally stop the timer */
			dhd->wd_timer_valid = FALSE;
			del_timer_flag = TRUE;
		}
	}
	dhd_os_spin_unlock(pub, flags);
	if (del_timer_flag) {
		del_timer_sync(&dhd->timer);
	}
}

void *
dhd_os_open_image(char *filename)
{
	struct file *fp;


	fp = filp_open(filename, O_RDONLY, 0);
	/*
	 * 2.6.11 (FC4) supports filp_open() but later revs don't?
	 * Alternative:
	 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
	 * ???
	 */
	 if (IS_ERR(fp))
		 fp = NULL;

	 return fp;
}

int
dhd_os_get_image_block(char *buf, int len, void *image)
{
	struct file *fp = (struct file *)image;
	int rdlen;


	if (!image)
		return 0;

	rdlen = kernel_read(fp, fp->f_pos, buf, len);
	if (rdlen > 0)
		fp->f_pos += rdlen;

	return rdlen;
}

void
dhd_os_close_image(void *image)
{
	if (image)
		filp_close((struct file *)image, NULL);
}


void
dhd_os_sdlock(dhd_pub_t *pub)
{
	dhd_info_t *dhd;

	dhd = (dhd_info_t *)(pub->info);

	if (dhd->threads_only)
		down(&dhd->sdsem);
	else
	spin_lock_bh(&dhd->sdlock);
}

void
dhd_os_sdunlock(dhd_pub_t *pub)
{
	dhd_info_t *dhd;

	dhd = (dhd_info_t *)(pub->info);

	if (dhd->threads_only)
		up(&dhd->sdsem);
	else
	spin_unlock_bh(&dhd->sdlock);
}

void
dhd_os_sdlock_txq(dhd_pub_t *pub)
{
	dhd_info_t *dhd;

	dhd = (dhd_info_t *)(pub->info);
	spin_lock_bh(&dhd->txqlock);
}

void
dhd_os_sdunlock_txq(dhd_pub_t *pub)
{
	dhd_info_t *dhd;

	dhd = (dhd_info_t *)(pub->info);
	spin_unlock_bh(&dhd->txqlock);
}
void
dhd_os_sdlock_rxq(dhd_pub_t *pub)
{
}
void
dhd_os_sdunlock_rxq(dhd_pub_t *pub)
{
}

void
dhd_os_sdtxlock(dhd_pub_t *pub)
{
	dhd_os_sdlock(pub);
}

void
dhd_os_sdtxunlock(dhd_pub_t *pub)
{
	dhd_os_sdunlock(pub);
}

#ifdef DHD_USE_STATIC_BUF
void * dhd_os_prealloc(int section, unsigned long size)
{
#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
	void *alloc_ptr = NULL;
	if (wifi_control_data && wifi_control_data->mem_prealloc)
	{
		alloc_ptr = wifi_control_data->mem_prealloc(section, size);
		if (alloc_ptr)
		{
			DHD_INFO(("success alloc section %d\n", section));
			bzero(alloc_ptr, size);
			return alloc_ptr;
		}
	}

	DHD_ERROR(("can't alloc section %d\n", section));
	return 0;
#else
return MALLOC(0, size);
#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
}
#endif /* DHD_USE_STATIC_BUF */
#if defined(CONFIG_WIRELESS_EXT)
struct iw_statistics *
dhd_get_wireless_stats(struct net_device *dev)
{
	int res = 0;
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);

	if (res == 0)
		return &dhd->iw.wstats;
	else
		return NULL;
}
#endif /* defined(CONFIG_WIRELESS_EXT) */

static int
dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
	wl_event_msg_t *event, void **data)
{
	int bcmerror = 0;
	ASSERT(dhd != NULL);


	bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
	if (bcmerror != BCME_OK)
		return (bcmerror);

#if defined(CONFIG_WIRELESS_EXT)
	ASSERT(dhd->iflist[*ifidx] != NULL);

	if (ntoh32(event->event_type) == WLC_E_IF) {
		DHD_INFO(("<0> interface:%d OP:%d don't pass to wext,"
			"net_device might not be created yet\n",
				*ifidx, ntoh32(event->event_type)));
		return bcmerror;
	}

	ASSERT(dhd->iflist[*ifidx]->net != NULL);

	if (dhd->iflist[*ifidx]->net)
		wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
#endif /* defined(CONFIG_WIRELESS_EXT)  */


	return (bcmerror);
}

/* send up locally generated event */
void
dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
{
	switch (ntoh32(event->event_type)) {
	default:
		break;
	}
}

void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
{
#if 1 && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
	struct dhd_info *dhdinfo =  dhd->info;
	dhd_os_sdunlock(dhd);
	wait_event_interruptible_timeout(dhdinfo->ctrl_wait, (*lockvar == FALSE), HZ * 2);
	dhd_os_sdlock(dhd);
#endif
	return;
}

void dhd_wait_event_wakeup(dhd_pub_t *dhd)
{
#if 1 && (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
	struct dhd_info *dhdinfo =  dhd->info;
	if (waitqueue_active(&dhdinfo->ctrl_wait))
		wake_up_interruptible(&dhdinfo->ctrl_wait);
#endif
	return;
}
int
dhd_dev_reset(struct net_device *dev, uint8 flag)
{
	int ret;

	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	ret = dhd_bus_devreset(&dhd->pub, flag);
	if (ret) {
		DHD_ERROR(("%s: dhd_bus_devreset: %d\n", __FUNCTION__, ret));
		return ret;
	}
	DHD_ERROR(("%s: WLAN %s DONE\n", __FUNCTION__, flag ? "OFF" : "ON"));

	return ret;
}

int net_os_set_suspend_disable(struct net_device *dev, int val)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	int ret = 0;

	if (dhd) {
		ret = dhd->pub.suspend_disable_flag;
		dhd->pub.suspend_disable_flag = val;
	}
	return ret;
}

int net_os_set_suspend(struct net_device *dev, int val)
{
	int ret = 0;
#if defined(CONFIG_HAS_EARLYSUSPEND)
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	if (dhd) {
		dhd_os_proto_block(&dhd->pub);
		ret = dhd_set_suspend(val, &dhd->pub);
		dhd_os_proto_unblock(&dhd->pub);
	}
#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
	return ret;
}

int net_os_set_dtim_skip(struct net_device *dev, int val)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	if (dhd)
		dhd->pub.dtim_skip = val;

	return 0;
}

int net_os_set_packet_filter(struct net_device *dev, int val)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	int ret = 0;

	/* Packet filtering is set only if we still in early-suspend and
	 * we need either to turn it ON or turn it OFF
	 * We can always turn it OFF in case of early-suspend, but we turn it
	 * back ON only if suspend_disable_flag was not set
	*/
	if (dhd && dhd->pub.up) {
		dhd_os_proto_block(&dhd->pub);
		if (dhd->pub.in_suspend) {
			if (!val || (val && !dhd->pub.suspend_disable_flag))
				dhd_set_packet_filter(val, &dhd->pub);
		}
		dhd_os_proto_unblock(&dhd->pub);
	}
	return ret;
}


void
dhd_dev_init_ioctl(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	dhd_preinit_ioctls(&dhd->pub);
}

#ifdef PNO_SUPPORT
/* Linux wrapper to call common dhd_pno_clean */
int
dhd_dev_pno_reset(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	return (dhd_pno_clean(&dhd->pub));
}


/* Linux wrapper to call common dhd_pno_enable */
int
dhd_dev_pno_enable(struct net_device *dev,  int pfn_enabled)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	return (dhd_pno_enable(&dhd->pub, pfn_enabled));
}


/* Linux wrapper to call common dhd_pno_set */
int
dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t* ssids_local, int nssid, ushort  scan_fr)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	return (dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr));
}

/* Linux wrapper to get  pno status */
int
dhd_dev_get_pno_status(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	return (dhd_pno_get_status(&dhd->pub));
}

#endif /* PNO_SUPPORT */

int net_os_send_hang_message(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	int ret = 0;

	if (dhd) {
		if (!dhd->hang_was_sent) {
			dhd->hang_was_sent = 1;
			ret = wl_iw_send_priv_event(dev, "HANG");
		}
	}
	return ret;
}

void dhd_bus_country_set(struct net_device *dev, char *country_code)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);

	if (dhd && dhd->pub.up)
		strncpy(dhd->pub.country_code, country_code, WLC_CNTRY_BUF_SZ);
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
void dhd_os_start_lock(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (dhd)
		mutex_lock(&dhd->wl_start_lock);
}

void dhd_os_start_unlock(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (dhd)
		mutex_unlock(&dhd->wl_start_lock);
}
#endif 

#ifdef SOFTAP
unsigned long dhd_os_spin_lock(dhd_pub_t *pub)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);
	unsigned long flags = 0;

	if (dhd)
		spin_lock_irqsave(&dhd->dhd_lock, flags);

	return flags;
}

void dhd_os_spin_unlock(dhd_pub_t *pub, unsigned long flags)
{
	dhd_info_t *dhd = (dhd_info_t *)(pub->info);

	if (dhd)
		spin_unlock_irqrestore(&dhd->dhd_lock, flags);
}
#endif /* SOFTAP */

static int
dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
{
	return (atomic_read(&dhd->pend_8021x_cnt));
}

#define MAX_WAIT_FOR_8021X_TX	10

int
dhd_wait_pend8021x(struct net_device *dev)
{
	dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
	int timeout = 10 * HZ / 1000;
	int ntimes = MAX_WAIT_FOR_8021X_TX;
	int pend = dhd_get_pend_8021x_cnt(dhd);

	while (ntimes && pend) {
		if (pend) {
			set_current_state(TASK_INTERRUPTIBLE);
			schedule_timeout(timeout);
			set_current_state(TASK_RUNNING);
			ntimes--;
		}
		pend = dhd_get_pend_8021x_cnt(dhd);
	}
	return pend;
}

#ifdef DHD_DEBUG
int
write_to_file(dhd_pub_t *dhd, uint8 *buf, int size)
{
	int ret = 0;
	struct file *fp;
	mm_segment_t old_fs;
	loff_t pos = 0;

	/* change to KERNEL_DS address limit */
	old_fs = get_fs();
	set_fs(KERNEL_DS);

	/* open file to write */
	fp = filp_open("/tmp/mem_dump", O_WRONLY|O_CREAT, 0640);
	if (!fp) {
		printf("%s: open file error\n", __FUNCTION__);
		ret = -1;
		goto exit;
	}

	/* Write buf to file */
	fp->f_op->write(fp, buf, size, &pos);

exit:
	/* free buf before return */
	MFREE(dhd->osh, buf, size);
	/* close file before return */
	if (fp)
		filp_close(fp, current->files);
	/* restore previous address limit */
	set_fs(old_fs);

	return ret;
}
#endif /* DHD_DEBUG */
./dhd/sys/dhd.h0000755000175200017520000004326012077456476015542 0ustar  xionghaoyongxionghaoyong/*
 * Header file describing the internal (inter-module) DHD interfaces.
 *
 * Provides type definitions and function prototypes used to link the
 * DHD OS, bus, and protocol modules.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhd.h,v 1.32.4.7.2.4.14.49.4.7 2010/11/12 22:48:36 Exp $
 */

/****************
 * Common types *
 */

#ifndef _dhd_h_
#define _dhd_h_

#if defined(LINUX)
#if defined(CHROMIUMOS_COMPAT_WIRELESS)
#include <linux/sched.h>
#endif
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/random.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
#include <linux/wakelock.h>
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
/* The kernel threading is sdio-specific */
#else /* LINUX */
#define ENOMEM		1
#define EFAULT      2
#define EINVAL		3
#define EIO			4
#define ETIMEDOUT	5
#define ERESTARTSYS 6
#endif /* LINUX */

#include <wlioctl.h>


/* Forward decls */
struct dhd_bus;
struct dhd_prot;
struct dhd_info;

/* The level of bus communication with the dongle */
enum dhd_bus_state {
	DHD_BUS_DOWN,		/* Not ready for frame transfers */
	DHD_BUS_LOAD,		/* Download access only (CPU reset) */
	DHD_BUS_DATA		/* Ready for frame transfers */
};

enum dhd_bus_wake_state {
	WAKE_LOCK_OFF,
	WAKE_LOCK_PRIV,
	WAKE_LOCK_DPC,
	WAKE_LOCK_IOCTL,
	WAKE_LOCK_DOWNLOAD,
	WAKE_LOCK_TMOUT,
	WAKE_LOCK_WATCHDOG,
	WAKE_LOCK_LINK_DOWN_TMOUT,
	WAKE_LOCK_PNO_FIND_TMOUT,
	WAKE_LOCK_SOFTAP_SET,
	WAKE_LOCK_SOFTAP_STOP,
	WAKE_LOCK_SOFTAP_START,
	WAKE_LOCK_SOFTAP_THREAD,
	WAKE_LOCK_MAX
};
enum dhd_prealloc_index {
	DHD_PREALLOC_PROT = 0,
	DHD_PREALLOC_RXBUF,
	DHD_PREALLOC_DATABUF,
	DHD_PREALLOC_OSL_BUF
};
#ifdef DHD_USE_STATIC_BUF
extern void * dhd_os_prealloc(int section, unsigned long size);
#endif
/* Common structure for module and instance linkage */
typedef struct dhd_pub {
	/* Linkage ponters */
	osl_t *osh;		/* OSL handle */
	struct dhd_bus *bus;	/* Bus module handle */
	struct dhd_prot *prot;	/* Protocol module handle */
	struct dhd_info  *info; /* Info module handle */

	/* Internal dhd items */
	bool up;		/* Driver up/down (to OS) */
	bool txoff;		/* Transmit flow-controlled */
	bool dongle_reset;  /* TRUE = DEVRESET put dongle into reset */
	enum dhd_bus_state busstate;
	uint hdrlen;		/* Total DHD header length (proto + bus) */
	uint maxctl;		/* Max size rxctl request from proto to bus */
	uint rxsz;		/* Rx buffer size bus module should use */
	uint8 wme_dp;	/* wme discard priority */

	/* Dongle media info */
	bool iswl;		/* Dongle-resident driver is wl */
	ulong drv_version;	/* Version of dongle-resident driver */
	struct ether_addr mac;	/* MAC address obtained from dongle */
	dngl_stats_t dstats;	/* Stats for dongle-based data */

	/* Additional stats for the bus level */
	ulong tx_packets;	/* Data packets sent to dongle */
	ulong tx_multicast;	/* Multicast data packets sent to dongle */
	ulong tx_errors;	/* Errors in sending data to dongle */
	ulong tx_ctlpkts;	/* Control packets sent to dongle */
	ulong tx_ctlerrs;	/* Errors sending control frames to dongle */
	ulong rx_packets;	/* Packets sent up the network interface */
	ulong rx_multicast;	/* Multicast packets sent up the network interface */
	ulong rx_errors;	/* Errors processing rx data packets */
	ulong rx_ctlpkts;	/* Control frames processed from dongle */
	ulong rx_ctlerrs;	/* Errors in processing rx control frames */
	ulong rx_dropped;	/* Packets dropped locally (no memory) */
	ulong rx_flushed;  /* Packets flushed due to unscheduled sendup thread */
	ulong wd_dpc_sched;   /* Number of times dhd dpc scheduled by watchdog timer */

	ulong rx_readahead_cnt;	/* Number of packets where header read-ahead was used. */
	ulong tx_realloc;	/* Number of tx packets we had to realloc for headroom */
	ulong fc_packets;       /* Number of flow control pkts recvd */

	/* Last error return */
	int bcmerror;
	uint tickcnt;

	/* Last error from dongle */
	int dongle_error;

	/* Suspend disable flag  flag */
	int suspend_disable_flag; /* "1" to disable all extra powersaving during suspend */
	int in_suspend;			/* flag set to 1 when early suspend called */
#ifdef PNO_SUPPORT
	int pno_enable;                 /* pno status : "1" is pno enable */
#endif /* PNO_SUPPORT */
	int dtim_skip;         /* dtim skip , default 0 means wake each dtim */

	/* Pkt filter defination */
	char * pktfilter[100];
	int pktfilter_count;

	uint8 country_code[WLC_CNTRY_BUF_SZ];
	char eventmask[WL_EVENTING_MASK_LEN];

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	struct wake_lock 	wakelock[WAKE_LOCK_MAX];
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	struct mutex 	wl_start_stop_lock; /* lock/unlock for Android start/stop */
	struct mutex 	wl_softap_lock;		 /* lock/unlock for any SoftAP/STA settings */
#endif 
} dhd_pub_t;


	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)

	#define DHD_PM_RESUME_WAIT_INIT(a) DECLARE_WAIT_QUEUE_HEAD(a);
	#define _DHD_PM_RESUME_WAIT(a, b) do {\
			int retry = 0; \
			smp_mb(); \
			while (dhd_mmc_suspend && retry++ != b) { \
				wait_event_timeout(a, FALSE, HZ/100); \
			} \
		} 	while (0)
	#define DHD_PM_RESUME_WAIT(a) 			_DHD_PM_RESUME_WAIT(a, 30)
	#define DHD_PM_RESUME_WAIT_FOREVER(a) 	_DHD_PM_RESUME_WAIT(a, ~0)
	#define DHD_PM_RESUME_RETURN_ERROR(a)	do { if (dhd_mmc_suspend) return a; } while (0)
	#define DHD_PM_RESUME_RETURN		do { if (dhd_mmc_suspend) return; } while (0)

	#define DHD_SPINWAIT_SLEEP_INIT(a) DECLARE_WAIT_QUEUE_HEAD(a);
	#define SPINWAIT_SLEEP(a, exp, us) do { \
		uint countdown = (us) + 9999; \
		while ((exp) && (countdown >= 10000)) { \
			wait_event_timeout(a, FALSE, HZ/100); \
			countdown -= 10000; \
		} \
	} while (0)

	#else

	#define DHD_PM_RESUME_WAIT_INIT(a)
	#define DHD_PM_RESUME_WAIT(a)
	#define DHD_PM_RESUME_WAIT_FOREVER(a)
	#define DHD_PM_RESUME_RETURN_ERROR(a)
	#define DHD_PM_RESUME_RETURN

	#define DHD_SPINWAIT_SLEEP_INIT(a)
	#define SPINWAIT_SLEEP(a, exp, us)  do { \
		uint countdown = (us) + 9; \
		while ((exp) && (countdown >= 10)) { \
			OSL_DELAY(10);  \
			countdown -= 10;  \
		} \
	} while (0)

	#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP) */
#define DHD_IF_VIF	0x01	/* Virtual IF (Hidden from user) */

inline static void MUTEX_LOCK_INIT(dhd_pub_t * dhdp)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_init(&dhdp->wl_start_stop_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void MUTEX_LOCK_SOFTAP_SET_INIT(dhd_pub_t * dhdp)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_init(&dhdp->wl_softap_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void MUTEX_LOCK_SOFTAP_SET(dhd_pub_t * dhdp)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_lock(&dhdp->wl_softap_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void MUTEX_UNLOCK_SOFTAP_SET(dhd_pub_t * dhdp)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_unlock(&dhdp->wl_softap_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
extern struct mutex  g_wl_ss_scan_lock;		 /* lock/unlock for Scan/Cache settings */
#endif 

inline static void MUTEX_LOCK_WL_SCAN_SET_INIT(void)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_init(&g_wl_ss_scan_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void MUTEX_LOCK_WL_SCAN_SET(void)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_lock(&g_wl_ss_scan_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void MUTEX_UNLOCK_WL_SCAN_SET(void)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
	mutex_unlock(&g_wl_ss_scan_lock);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
}

inline static void WAKE_LOCK_INIT(dhd_pub_t * dhdp, int index, char * y)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	wake_lock_init(&dhdp->wakelock[index], WAKE_LOCK_SUSPEND, y);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
}

inline static void WAKE_LOCK(dhd_pub_t * dhdp, int index)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	wake_lock(&dhdp->wakelock[index]);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
}

inline static void WAKE_UNLOCK(dhd_pub_t * dhdp, int index)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	wake_unlock(&dhdp->wakelock[index]);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
}

inline static void WAKE_LOCK_TIMEOUT(dhd_pub_t * dhdp, int index, long time)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	wake_lock_timeout(&dhdp->wakelock[index], time);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
}

inline static void WAKE_LOCK_DESTROY(dhd_pub_t * dhdp, int index)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_HAS_WAKELOCK)
	wake_lock_destroy(&dhdp->wakelock[index]);
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined (CONFIG_HAS_WAKELOCK) */
}


typedef struct dhd_if_event {
	uint8 ifidx;
	uint8 action;
	uint8 flags;
	uint8 bssidx;
} dhd_if_event_t;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) && 1
extern void dhd_os_start_lock(dhd_pub_t *pub);
extern void dhd_os_start_unlock(dhd_pub_t *pub);
#endif 
extern unsigned long dhd_os_spin_lock(dhd_pub_t *pub);
extern void dhd_os_spin_unlock(dhd_pub_t *pub, unsigned long flags);
/*
 * Exported from dhd OS modules (dhd_linux/dhd_ndis)
 */

/* To allow osl_attach/detach calls from os-independent modules */
osl_t *dhd_osl_attach(void *pdev, uint bustype);
void dhd_osl_detach(osl_t *osh);

/* Indication from bus module regarding presence/insertion of dongle.
 * Return dhd_pub_t pointer, used as handle to OS module in later calls.
 * Returned structure should have bus and prot pointers filled in.
 * bus_hdrlen specifies required headroom for bus module header.
 */
extern dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen);
extern int dhd_net_attach(dhd_pub_t *dhdp, int idx);

/* Indication from bus module regarding removal/absence of dongle */
extern void dhd_detach(dhd_pub_t *dhdp);

/* Indication from bus module to change flow-control state */
extern void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool on);

extern bool dhd_prec_enq(dhd_pub_t *dhdp, struct pktq *q, void *pkt, int prec);

/* Receive frame for delivery to OS.  Callee disposes of rxp. */
extern void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *rxp, int numpkt);

/* Return pointer to interface name */
extern char *dhd_ifname(dhd_pub_t *dhdp, int idx);

/* Request scheduling of the bus dpc */
extern void dhd_sched_dpc(dhd_pub_t *dhdp);

/* Notify tx completion */
extern void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success);

/* Query ioctl */
extern int  dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len);

/* OS independent layer functions */
extern int dhd_os_proto_block(dhd_pub_t * pub);
extern int dhd_os_proto_unblock(dhd_pub_t * pub);
extern int dhd_os_ioctl_resp_wait(dhd_pub_t * pub, uint * condition, bool * pending);
extern int dhd_os_ioctl_resp_wake(dhd_pub_t * pub);
extern unsigned int dhd_os_get_ioctl_resp_timeout(void);
extern void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec);
extern void * dhd_os_open_image(char * filename);
extern int dhd_os_get_image_block(char * buf, int len, void * image);
extern void dhd_os_close_image(void * image);
extern void dhd_os_wd_timer(void *bus, uint wdtick);
extern void dhd_os_sdlock(dhd_pub_t * pub);
extern void dhd_os_sdunlock(dhd_pub_t * pub);
extern void dhd_os_sdlock_txq(dhd_pub_t * pub);
extern void dhd_os_sdunlock_txq(dhd_pub_t * pub);
extern void dhd_os_sdlock_rxq(dhd_pub_t * pub);
extern void dhd_os_sdunlock_rxq(dhd_pub_t * pub);
extern void dhd_os_sdlock_sndup_rxq(dhd_pub_t * pub);
extern void dhd_customer_gpio_wlan_ctrl(int onoff);
extern int	   dhd_custom_get_mac_address(unsigned char *buf);
extern void dhd_os_sdunlock_sndup_rxq(dhd_pub_t * pub);
extern void dhd_os_sdlock_eventq(dhd_pub_t * pub);
extern void dhd_os_sdunlock_eventq(dhd_pub_t * pub);
#ifdef DHD_DEBUG
extern int write_to_file(dhd_pub_t *dhd, uint8 *buf, int size);
#endif /* DHD_DEBUG */
#if defined(OOB_INTR_ONLY)
extern int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr);
#endif /* defined(OOB_INTR_ONLY) */
extern void dhd_os_sdtxlock(dhd_pub_t * pub);
extern void dhd_os_sdtxunlock(dhd_pub_t * pub);

int setScheduler(struct task_struct *p, int policy, struct sched_param *param);

typedef struct {
	uint32 limit;		/* Expiration time (usec) */
	uint32 increment;	/* Current expiration increment (usec) */
	uint32 elapsed;		/* Current elapsed time (usec) */
	uint32 tick;		/* O/S tick time (usec) */
} dhd_timeout_t;

extern void dhd_timeout_start(dhd_timeout_t *tmo, uint usec);
extern int dhd_timeout_expired(dhd_timeout_t *tmo);

extern int dhd_ifname2idx(struct dhd_info *dhd, char *name);
extern uint8 *dhd_bssidx2bssid(dhd_pub_t *dhd, int idx);
extern int wl_host_event(struct dhd_info *dhd, int *idx, void *pktdata,
                         wl_event_msg_t *, void **data_ptr);
extern void wl_event_to_host_order(wl_event_msg_t * evt);

extern void dhd_common_init(void);

extern int dhd_add_if(struct dhd_info *dhd, int ifidx, void *handle,
	char *name, uint8 *mac_addr, uint32 flags, uint8 bssidx);
extern void dhd_del_if(struct dhd_info *dhd, int ifidx);

extern void dhd_vif_add(struct dhd_info *dhd, int ifidx, char * name);
extern void dhd_vif_del(struct dhd_info *dhd, int ifidx);

extern void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx);
extern void dhd_vif_sendup(struct dhd_info *dhd, int ifidx, uchar *cp, int len);


/* Send packet to dongle via data channel */
extern int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pkt);

/* Send event to host */
extern void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data);
extern int dhd_bus_devreset(dhd_pub_t *dhdp, uint8 flag);
extern uint dhd_bus_status(dhd_pub_t *dhdp);
extern int  dhd_bus_start(dhd_pub_t *dhdp);

extern void print_buf(void *pbuf, int len, int bytes_per_line);


typedef enum cust_gpio_modes {
	WLAN_RESET_ON,
	WLAN_RESET_OFF,
	WLAN_POWER_ON,
	WLAN_POWER_OFF
} cust_gpio_modes_t;
extern int wl_iw_iscan_set_scan_broadcast_prep(struct net_device *dev, uint flag);
extern int wl_iw_send_priv_event(struct net_device *dev, char *flag);
extern int net_os_send_hang_message(struct net_device *dev);
/*
 * Insmod parameters for debug/test
 */

/* Watchdog timer interval */
extern uint dhd_watchdog_ms;

#if defined(DHD_DEBUG)
/* Console output poll interval */
extern uint dhd_console_ms;
#endif /* defined(DHD_DEBUG) */

/* Use interrupts */
extern uint dhd_intr;

/* Use polling */
extern uint dhd_poll;

/* ARP offload agent mode */
extern uint dhd_arp_mode;

/* ARP offload enable */
extern uint dhd_arp_enable;

/* Pkt filte enable control */
extern uint dhd_pkt_filter_enable;

/*  Pkt filter init setup */
extern uint dhd_pkt_filter_init;

/* Pkt filter mode control */
extern uint dhd_master_mode;

/* Roaming mode control */
extern uint dhd_roam;

/* Roaming mode control */
extern uint dhd_radio_up;

/* Initial idletime ticks (may be -1 for immediate idle, 0 for no idle) */
extern int dhd_idletime;
#define DHD_IDLETIME_TICKS 1

/* SDIO Drive Strength */
extern uint dhd_sdiod_drive_strength;

/* Override to force tx queueing all the time */
extern uint dhd_force_tx_queueing;

/* Default KEEP_ALIVE Period is 55 sec to prevent AP from sending Keep Alive probe frame */
#define KEEP_ALIVE_PERIOD 55000
#define NULL_PKT_STR	"null_pkt"

#ifdef SDTEST
/* Echo packet generator (SDIO), pkts/s */
extern uint dhd_pktgen;

/* Echo packet len (0 => sawtooth, max 1800) */
extern uint dhd_pktgen_len;
#define MAX_PKTGEN_LEN 1800
#endif


/* optionally set by a module_param_string() */
#define MOD_PARAM_PATHLEN	2048
extern char fw_path[MOD_PARAM_PATHLEN];
extern char nv_path[MOD_PARAM_PATHLEN];

/* For supporting multiple interfaces */
#define DHD_MAX_IFS	16
#define DHD_DEL_IF	-0xe
#define DHD_BAD_IF	-0xf


extern void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar);
extern void dhd_wait_event_wakeup(dhd_pub_t*dhd);

#endif /* _dhd_h_ */
./dhd/linux/0000755000175200017520000000000012077467770015142 5ustar  xionghaoyongxionghaoyong./dhd/linux/Makefile0000755000175200017520000002725112077456476016615 0ustar  xionghaoyongxionghaoyong
# GNU Makefile for Broadcom Dongle Host Driver
#
# Copyright (C) 1999-2010, Broadcom Corporation
# 
#      Unless you and Broadcom execute a separate written software license
# agreement governing use of this software, this software is licensed to you
# under the terms of the GNU General Public License version 2 (the "GPL"),
# available at http://www.broadcom.com/licenses/GPLv2.php, with the
# following added to such license:
# 
#      As a special exception, the copyright holders of this software give you
# permission to link this software with independent modules, and to copy and
# distribute the resulting executable under terms of your choice, provided that
# you also meet, for each linked independent module, the terms and conditions of
# the license of that module.  An independent module is a module which is not
# derived from this software.  The special exception does not apply to any
# modifications of the software.
# 
#      Notwithstanding the above, under no circumstances may you combine this
# software in any way with any other Broadcom software provided under a license
# other than the GPL, without Broadcom's express prior written consent.
#
# $Id: Makefile,v 1.55.2.6.2.10.6.42.4.2 2010/12/02 01:23:07 Exp $
#
export LINUX_SRC := $(ANDROID_BUILD_TOP)/kernel
export OUT_OBJ := $(ANDROID_PRODUCT_OUT)/obj
export LINUX_BUILD := $(ANDROID_PRODUCT_OUT)/obj/KERNEL_OBJ
export KERNEL_MAKE ?= -C $(LINUX_BUILD)
export OEM_ANDROID := 1

export LINUXDIR := $(LINUX_BUILD)
export LINUXSRC := $(LINUX_SRC)
export ARCH := arm
export CROSS_COMPILE := arm-eabi-

LOCAL_PATH:= $(call my-dir)

# Try a couple of places for LINUXDIR if not specified
ifeq ($(LINUXDIR),)
ifeq ($(LINUXVER),)
# Neither one is specified, use uname for version
LINUXVER := $(shell uname -r)
endif
ifneq ($(wildcard /lib/modules/$(LINUXVER)/build/include/linux/version.h),)
LINUXDIR := /lib/modules/$(LINUXVER)/build
else
ifneq ($(wildcard /tools/linux/src/linux-$(LINUXVER)/include/linux/version.h),)
LINUXDIR := /tools/linux/src/linux-$(LINUXVER)
else
LINUXDIR := /usr/src/linux
endif
endif
endif

# Derive LINUXVER from LINUXDIR
MYKERNEL_RELEASE_KEYWORD:="KERNELRELEASE[[:space:]]*=.*kernel.release"
MYKERNEL_DEFINITION:=$(if \
  $(shell grep $(MYKERNEL_RELEASE_KEYWORD) $(LINUXDIR)/Makefile 2> /dev/null),\
  grep $(MYKERNEL_RELEASE_KEYWORD) $(LINUXDIR)/Makefile,\
  cat $(LINUXDIR)/Makefile)

#LINUXVER:=$(shell ($(MYKERNEL_DEFINITION); echo "show_kernel_version_number$$$$:;@echo \$$(KERNELRELEASE)") 2> /dev/null | $(MAKE) --no-print-directory -k -C $(LINUXDIR) MYUNAME="" -f - show_kernel_version_number$$$$ 2> /dev/null)
LINUXVER := 2.6.32.9-ideos

ifeq ($(LINUXVER),)
     $(error LINUXVER=$(LINUXVER) is empty)
endif # LINUXVER

$(warning Found LINUXVER=$(LINUXVER))
$(warning Found LINUXDIR=$(LINUXDIR))

# check if 2.4 kernel or 2.5+ kernel
BCM_KVER:=$(shell echo $(LINUXVER) | cut -c1-3 | sed 's/2\.[56]/2\.6/')

# Allow CROSS_COMPILE to specify compiler base
CC := $(CROSS_COMPILE)gcc
LD := $(CROSS_COMPILE)ld
NM := $(CROSS_COMPILE)nm
OBJCOPY := $(CROSS_COMPILE)objcopy

# driver source base and C file path
ifeq ($(SRCBASE),)
SRCBASE := $(shell /bin/pwd)/../..
endif
vpath %.c $(SRCBASE)/dhd/sys $(SRCBASE)/shared $(SRCBASE)/bcmsdio/sys $(SRCBASE)/wl/sys $(SRCBASE)/crypto

## Initialize DFLAGS
DFLAGS :=


# basic options (defines in DFLAGS, includes in IFLAGS)
DFLAGS += -DLINUX -DSRCBASE=\"$(SRCBASE)\" -DBCMDRIVER -DBCMDONGLEHOST -DDHDTHREAD -DBCMWPA2 -DBCMWAPI_WPI
DFLAGS += -DUNRELEASEDCHIP
DFLAGS += -DCUSTOMER_HW
DFLAGS += -DGET_CUSTOM_MAC_ENABLE
DFLAGS += -DHUAWEI_QUICK_TOGGLE_WIFI
ifeq ($(BCMQT),1)
	DFLAGS += -DBCMSLTGT -DBCMQT
endif
ifeq ($(WLTEST),1)
	DFLAGS += -DWLTEST -DIOCTL_RESP_TIMEOUT=20000
	DFLAGS += -DDHD_SPROM
endif


# Past 2.6.29 kernels, arch specific bits are re-organized in linux kernel. So
# append new include paths to existing ones to get 2.6.29+ kernels compile

# Default DHDARCH is x86
ifdef ARCH
   DHDARCH ?= $(ARCH)
else
   DHDARCH ?= x86
endif

ifneq ($(findstring native,$(TARGET)),)
   DHDARCH = x86
endif
ifneq ($(findstring mips,$(TARGET)),)
   DHDARCH = mips
endif
ifneq ($(findstring arm,$(TARGET)),)
   DHDARCH = arm
endif

# First include from linux kernel dirs
IFLAGS := -I$(LINUXDIR)/include 
IFLAGS += -I$(LINUXDIR)/include/asm/mach-default 
# Followed by 2.6.29+ specific paths
IFLAGS += -I$(LINUXDIR)/arch/$(DHDARCH)/include
IFLAGS += -I$(LINUXDIR)/arch/$(DHDARCH)/include/asm/mach-default

# From current workspace
IFLAGS += -I. 
IFLAGS += -I$(SRCBASE)/include 
IFLAGS += -I$(SRCBASE)/shared 
IFLAGS += -I$(SRCBASE)/dhd/sys 
IFLAGS += -I$(SRCBASE)/dongle 
IFLAGS += -I$(SRCBASE)/wl/sys

ifneq ($(wildcard $(LINUXDIR)/.config),)
include $(LINUXDIR)/.config
else
# This is dangerous, since we don't know if they are really configured.
CONFIG_WIRELESS_EXT=y
DFLAGS += -DCONFIG_WIRELESS_EXT
endif

ifeq ($(CONFIG_MMC_MSM7X00A),y)
DFLAGS += -Dlinux
DFLAGS += -DDHD_SDALIGN=64 -DMAX_HDR_READ=64 -DDHD_FIRSTREAD=64
endif

WFLAGS := -Wall -Wstrict-prototypes
ifeq (,$(findstring 2.4.18,$(LINUXVER)))
WFLAGS += -Werror
endif

CFILES:= dhd_linux.c linux_osl.c bcmutils.c dhd_common.c dhd_custom_gpio.c
CFILES += siutils.c sbutils.c aiutils.c hndpmu.c

# threading options
ifneq ($(findstring -nothread-,-$(TARGET)-),)
DFLAGS += -UDHDTHREAD
endif

# Building gpl provides thread prioritization
ifneq ($(findstring -gpl-,-$(TARGET)-),)
CFILES += dhd_linux_sched.c
DFLAGS += -DDHD_GPL -DDHD_SCHED
endif

ifeq ($(WLTEST),1)
	CFILES += bcmsrom.c bcmotp.c
endif

ifeq ($(CONFIG_NET_RADIO),y)
CFILES +=  bcmwifi.c
CFILES += wl_iw.c
else
	ifeq ($(CONFIG_WIRELESS_EXT),y)
	CFILES += bcmwifi.c
	CFILES += wl_iw.c
	endif
endif
ifeq ($(BCM_KVER), 2.6)
CFG80211_KVER:=$(shell echo $(LINUXVER) | cut -c5-6 | sed 's/3[1-9]/true/')
ifeq ($(CFG80211_KVER), true)
	ifeq ($(CONFIG_CFG80211),m)
	DFLAGS += -DCONFIG_CFG80211
	CFILES += wl_cfg80211.c
	endif
endif
endif


OFILES=$(CFILES:.c=.o)

# Make debug a separate option
ifneq ($(findstring -debug-,-$(TARGET)-),)
DFLAGS += -DDHD_DEBUG -DSDTEST
endif

# Make big-endian a separate option
ifneq ($(findstring -be-,-$(TARGET)-),)
DFLAGS += -DIL_BIGENDIAN
endif

ifneq ($(findstring -dnglimage-,-$(TARGET)-),)
## Embeddable dongle image name
DNGL_IMAGE_NAME ?= 4325b0/sdio-g-cdc-reclaim-idsup-wme
DFLAGS += -DBCMEMBEDIMAGE -DIMAGE_NAME="$(DNGL_IMAGE_NAME)"
IFLAGS += -I$(SRCBASE)/dongle/rte/wl/builds/$(DNGL_IMAGE_NAME)
endif

ifneq ($(findstring -cdc-,-$(TARGET)-),)
DFLAGS += -DBDC -DTOE 
DFLAGS += -DDHD_BCMEVENTS -DSHOW_EVENTS
CFILES += dhd_cdc.c
ifneq ($(findstring -apsta-,-$(TARGET)-),)
DFLAGS += -DAP -DAPSTA_PINGTEST
endif
endif
ifneq ($(findstring -rndis-,-$(TARGET)-),)
DFLAGS += -DRNDIS
CFILES += dhd_rndis.c
endif
		  
ifneq ($(findstring -usb-,-$(TARGET)-),)
DFLAGS += -DBCMDHDUSB
CFILES += dhd_usb_linux.c
endif
ifneq ($(findstring -sdio-,-$(TARGET)-),)
DFLAGS += -DBCMSDIO
CFILES += dhd_sdio.c
endif
ifneq ($(findstring -sdstd-,$(TARGET)-),)
DFLAGS += -DBCMSDIO -DBCMSDIOH_STD
CFILES += dhd_sdio.c bcmsdh.c bcmsdstd.c bcmsdstd_linux.c bcmsdh_linux.c
endif
ifneq ($(findstring -softap-,-$(TARGET)-),)
DFLAGS += -DSOFTAP
CFILES += sha1.c md5.c
endif
ifneq ($(findstring -nexus-,-$(TARGET)-),)
DFLAGS += -DOEM_ANDROID -DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
DFLAGS += -DOEM_ANDROID
DFLAGS += -DBCMDBG
DFLAGS += -DDHD_USE_STATIC_BUF
DFLAGS += -DCUSTOMER_HW2
DFLAGS += -DCUSTOM_OOB_GPIO_NUM=152
DFLAGS += -DOOB_INTR_ONLY
DFLAGS += -DMMC_SDIO_ABORT
DFLAGS += -DSOFTAP
DFLAGS += -DKEEP_ALIVE
DFLAGS += -DPNO_SUPPORT
DFLAGS += -DCONFIG_FIRST_SCAN
else
ifneq ($(findstring -oob-,-$(TARGET)-),)
DFLAGS += -DOOB_INTR_ONLY
DFLAGS += -DHW_OOB
DFLAGS += -DMMC_SDIO_ABORT
else
ifneq ($(findstring -sdmmc-,-$(TARGET)-),)
DFLAGS += -DSDIO_ISR_THREAD
endif
endif
endif
ifneq ($(findstring -sdmmc-,-$(TARGET)-),)
DFLAGS += -DBCMSDIO -DDHD_GPL -DBCMLXSDMMC -DBCMPLATFORM_BUS 
CFILES += dhd_sdio.c bcmsdh_sdmmc.c bcmsdh.c bcmsdh_linux.c bcmsdh_sdmmc_linux.c
endif
ifneq ($(findstring -sdspi-,$(TARGET)-),)
DFLAGS += -DBCMSDIO -DBCMSDIOH_SPI -DTESTDONGLE # -DBCMSDYIELD
CFILES += dhd_sdio.c bcmsdh.c bcmsdspi.c bcmsdspi_linux.c bcmsdh_linux.c 
endif
ifneq ($(findstring -pci,$(TARGET)-),)
CFILES += bcmpcispi.c
endif
ifneq ($(findstring -sdext-,$(TARGET)-),)
DFLAGS += -DBCMSDIO -DTESTDONGLE
CFILES += dhd_sdio.c
endif
ifneq ($(findstring -intc1,$(shell echo $(LINUXVER))),)
DFLAGS += -DSANDGATE2G
endif

ifeq ($(OEM_ANDROID),1)
DFLAGS += -DOEM_ANDROID -DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
endif
ifeq ($(OEM_CHROMIUMOS),1)
DFLAGS += -DOEM_CHROMIUMOS -DEMBEDDED_PLATFORM -DARP_OFFLOAD_SUPPORT -DPKT_FILTER_SUPPORT
endif

CFLAGS += -fshort-wchar $(DFLAGS) $(WFLAGS) $(IFLAGS) $(CUSTOM_FLAGS)



LDFLAGS := -r
MODULES := dhd.o
ifeq ($(BCM_KVER), 2.6)
  ##Kernel module names in 2.6 kernel have .ko suffix
  KMODULES:=dhd.ko
  ifneq ($(findstring -nexus-,$(TARGET)-),)
    KMODULES:=bcm4329.ko
  endif
else
  KMODULES:=$(MODULES)
endif


# host options
HOSTCC := $(CC)
ifneq ($(BCM_KVER), 2.6)
  HOSTCFLAGS := $(CFLAGS) $(shell $(MAKE) --no-print-directory -s -C $(LINUXDIR) script 'SCRIPT=@echo $$(CFLAGS) $$(MODFLAGS)')
else
  HOSTCFLAGS := $(CFLAGS) -D__KERNEL__
  DHDCFLAGS = $(HOSTCFLAGS) -I$(shell pwd)
  export DHDCFLAGS
  DHDOFILES = $(OFILES)
  export DHDOFILES
endif

TARGETS := \
	dhd-cdc-usb dhd-cdc-sdstd \
	dhd-cdc-sdspi-pci dhd-cdc-sdmmc-gpl dhd-cdc-sdmmc-oob-gpl dhd-cdc-sdmmc-nexus-gpl\
	dhd-cdc-usb-apsta dhd-cdc-usb-gpl \
	dhd-cdc-sdstd-apsta \
	dhd-cdc-sdmmc-softap-gpl


TARGETS += \
	dhd-cdc-sdio-dnglimage dhd-cdc-sdspi-pci-dnglimage \
	dhd-cdc-gspi-pci
#ifdef RNDIS
TARGETS += dhd-rndis-usb
#endif
TARGETS += dhd-cdc-sdext-be
TARGETS += dhd-cdc-sdext-be-dnglimage
ifneq ($(findstring -intc1,$(shell echo $(LINUXVER))),)
TARGETS += dhd-cdc-sdio dhd-cdc-sdiofd # dhd-cdc-sdmmc
endif
TARGETS += $(foreach tgt, $(TARGETS), $(tgt)-debug)

OBJDIR=$(OUT_OBJ)/$(TARGET)-$(LINUXVER)$(if $(BCMQT),-bcmqt)

all: $(filter %-sdio %-sdbcm %-sdstd %-usb %sdspi-pci %-sdiofd %-sdmmc, $(TARGETS))
sdio: $(filter %-sdio %-sdbcm %-sdstd, $(TARGETS))
usb: $(filter %-usb, $(TARGETS))
sdspi: $(filter %-sdspi-pci %-sdspi-cheetah, %-sdspi-u2c $(TARGETS))

# Allow making target with the LINUXVER suffix already on it.
# (Typical of command line tab completion; trailing slash still not allowed)
%-$(LINUXVER): force
	$(MAKE) $(@:%-$(LINUXVER)=%)

$(TARGETS):
	@echo "MAKING $@"
	$(MAKE) TARGET=$@ objdir

# Show compiler version, for the current target build
showenv:
	@echo "CC = $(CC) (ver=`$(CC) -dumpversion`; host=`hostname`; processor=`uname -m`)"

objdir: showenv
	@echo "Making objdir $(OBJDIR)"
	@echo "TARGET is $(TARGET)"
	mkdir -p $(OBJDIR)
ifneq ($(BCM_KVER), 2.6)
	$(MAKE) -C $(OBJDIR) -f $(SRCBASE)/dhd/linux/Makefile SRCBASE=$(SRCBASE) dep
endif
	$(MAKE) -C $(OBJDIR) -f $(SRCBASE)/dhd/linux/Makefile SRCBASE=$(SRCBASE) modules
ifeq ($(BCM_KVER), 2.6)
	$(OBJCOPY) --strip-unneeded $(OBJDIR)/$(KMODULES) $(OBJDIR)/$(KMODULES).stripped
else
	$(OBJCOPY) --strip-unneeded $(OBJDIR)/dhd.o $(OBJDIR)/dhd.o.stripped
endif

dep: $(foreach file,$(CFILES),.$(file).depend)
.%.c.depend: %.c
	$(HOSTCC) $(HOSTCFLAGS) -M $< > $@ || (rm -f $@; exit 1)
.%.c.depend::
	touch $@

ifeq ($(BCM_KVER), 2.6)
modules: $(OFILES)
	test -r ./Makefile || ln -s $(SRCBASE)/dhd/linux/makefile.26 ./Makefile
	$(MAKE) -C $(LINUXDIR) M=$(shell pwd) $(if $(VERBOSE),V=1) modules
else
modules: $(MODULES)
endif

$(MODULES): $(OFILES)
	$(LD) $(LDFLAGS) -o $@ $^

ifeq ($(BCM_KVER), 2.6)
%.o: %.c
  # when make is called from 2.6, vpath doesn't work so we need to link the files.
	test -r ./$< || ln -s $< .
else
%.o: %.c
	$(HOSTCC) $(HOSTCFLAGS) -c -o $@ $<
	@( \
	echo 'ifneq ($$(HOSTCFLAGS),$(HOSTCFLAGS))' ; \
	echo '$@: force' ; \
	echo 'endif' ; \
	) > .$*.c.flags
endif

force:

clean:
	rm -rf dhd-*

ifneq ($(wildcard .*.depend),)
include $(wildcard .*.depend)
endif
ifneq ($(wildcard .*.flags),)
include $(wildcard .*.flags)
endif
./dhd/linux/makefile.260000755000175200017520000000260512077456476017077 0ustar  xionghaoyongxionghaoyong#
# Makefile fragment for Linux 2.6
# Broadcom DHD Driver
#
# Copyright (C) 1999-2010, Broadcom Corporation
# 
#      Unless you and Broadcom execute a separate written software license
# agreement governing use of this software, this software is licensed to you
# under the terms of the GNU General Public License version 2 (the "GPL"),
# available at http://www.broadcom.com/licenses/GPLv2.php, with the
# following added to such license:
# 
#      As a special exception, the copyright holders of this software give you
# permission to link this software with independent modules, and to copy and
# distribute the resulting executable under terms of your choice, provided that
# you also meet, for each linked independent module, the terms and conditions of
# the license of that module.  An independent module is a module which is not
# derived from this software.  The special exception does not apply to any
# modifications of the software.
# 
#      Notwithstanding the above, under no circumstances may you combine this
# software in any way with any other Broadcom software provided under a license
# other than the GPL, without Broadcom's express prior written consent.
#
# $Id: makefile.26,v 1.1.144.1.14.1 2010/04/16 20:27:14 Exp $

ifneq ($(findstring -nexus-,-$(TARGET)-),)
obj-m += bcm4329.o
bcm4329-objs = $(DHDOFILES)
else
obj-m += dhd.o
dhd-objs = $(DHDOFILES)
endif
EXTRA_CFLAGS = $(DHDCFLAGS)
./dhd/exe/0000755000175200017520000000000012077467770014564 5ustar  xionghaoyongxionghaoyong./dhd/exe/dhdu.h0000755000175200017520000000452412077456476015672 0ustar  xionghaoyongxionghaoyong/*
 * Common code for dhd utility, hacked from wl utility
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhdu.h,v 1.3.10.2.14.1 2008/11/20 00:20:34 Exp $
 */

#ifndef _dhdu_h_
#define _dhdu_h_

#include "dhdu_cmd.h"

extern char *dhdu_av0;

/* parse common option */
extern int dhd_option(char ***pargv, char **pifname, int *phelp);
extern void dhd_cmd_init(void);

/* print usage */
extern void dhd_cmd_usage(cmd_t *cmd);
extern void dhd_usage(cmd_t *port_cmds);
extern void dhd_cmds_usage(cmd_t *port_cmds);

/* print helpers */
extern void dhd_printlasterror(void *dhd);
extern void dhd_printint(int val);

/* check driver version */
extern int dhd_check(void *dhd);

/* useful macros */
#define ARRAYSIZE(a)  (sizeof(a)/sizeof(a[0]))

#define USAGE_ERROR    -1	/* Error code for Usage */
#define IOCTL_ERROR    -2	/* Error code for ioctl failure */
#define COMMAND_ERROR  -3	/* Error code for general command failure */

/* integer output format */
#define INT_FMT_DEC	0	/* signed integer */
#define INT_FMT_UINT	1	/* unsigned integer */
#define INT_FMT_HEX	2	/* hexdecimal */

/* command line argument usage */
#define CMD_ERR		-1	/* Error for command */
#define CMD_OPT		0	/* a command line option */
#define CMD_DHD		1	/* the start of a dhd command */

#endif /* _dhdu_h_ */
./dhd/exe/GNUmakefile0000755000175200017520000000565712077456476016657 0ustar  xionghaoyongxionghaoyong#
# GNUmakefile for dhd/exe
# (Basically a copy of wl/exe linux portion.)
#
# Copyright (C) 1999-2010, Broadcom Corporation
# 
#      Unless you and Broadcom execute a separate written software license
# agreement governing use of this software, this software is licensed to you
# under the terms of the GNU General Public License version 2 (the "GPL"),
# available at http://www.broadcom.com/licenses/GPLv2.php, with the
# following added to such license:
# 
#      As a special exception, the copyright holders of this software give you
# permission to link this software with independent modules, and to copy and
# distribute the resulting executable under terms of your choice, provided that
# you also meet, for each linked independent module, the terms and conditions of
# the license of that module.  An independent module is a module which is not
# derived from this software.  The special exception does not apply to any
# modifications of the software.
# 
#      Notwithstanding the above, under no circumstances may you combine this
# software in any way with any other Broadcom software provided under a license
# other than the GPL, without Broadcom's express prior written consent.
#
# $Id: GNUmakefile,v 1.9.24.4.2.4 2009/03/04 03:53:29 Exp $

SRCBASE = ../..

UNAME = $(shell uname)

#-----------------------------------------------------------
# Windows build
# 1) windows, don't include Makerules due to all: conflict
ifeq ($(findstring CYGWIN,$(UNAME)),CYGWIN)

SRCFILE = 
include ../../GNUmakefile.inc

else # UNAME

# 2) not windows, need to include first to pick up TARGETENV dependent vars
include $(SRCBASE)/Makerules


# Always include pktgen commands in the application
CFLAGS += -DSDTEST
CFLAGS += -DBCMSPI

#-----------------------------------------------------------
# Linux build
#
ifneq ($(findstring $(TARGETENV), "linux linuxmips linuxmips_be linuxarm linuxarm_le linuxarm_omap android"),)

# $(TARGETARCH) is set based on TARGETENV in src/Makerules.* files
DHD_OBJS := dhdu.o dhdu_linux.o bcmutils.o miniopt.o
DHD_EXE  := dhd

ifneq ($(findstring x86,$(TARGETARCH)),x86)
  DHD_EXE  := $(DHD_EXE)$(TARGETARCH)
  DHD_OBJS := $(DHD_OBJS:%.o=$(TARGETARCH)/%.o)
endif

# extra warnings
CFLAGS += -Wextra $(CUSTOM_FLAGS)

ifeq ($(TARGETENV), linuxarm_omap)
CFLAGS += -DBGBRD
endif

vpath %.c $(SRCBASE)/shared

all: $(DHD_EXE)

$(DHD_EXE): $(DHD_OBJS)
	$(CC) $(LDFLAGS) -o $@ $^

$(TARGETARCH)/%.o: %.c
	@mkdir -p $(TARGETARCH)
	$(CC) -c $(CFLAGS) -o $@ $^

clean:
	@rm -rf $(TARGETARCH)
	rm -f $(DHD_EXE) *.o
	rm -rf build

endif # linux

#-----------------------------------------------------------
# MacOS
#
ifeq ($(TARGETENV), macos)
DHD_EXE := dhd_macos
BUILD   := xcodebuild
PROJECT := dhd.xcodeproj
PROJTGT := dhd

all: $(DHD_EXE)

# Executable is located in build/Debug/dhd
dhd_macos:
	$(BUILD) -project $(PROJECT) -target $(PROJTGT) -configuration Debug build

clean:
	rm -f $(DHD_EXE) *.o
	rm -rf build

endif # macos


.PHONY: all clean

endif # UNAME
./dhd/exe/dhdu_cmd.h0000755000175200017520000000341712077456476016515 0ustar  xionghaoyongxionghaoyong/*
 * Command structure for dhd command line utility, copied from wl utility
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhdu_cmd.h,v 1.3.102.2 2008/05/07 00:19:34 Exp $
 */

#ifndef _dhdu_cmd_h_
#define _dhdu_cmd_h_

typedef struct cmd cmd_t;
typedef int (cmd_func_t)(void *dhd, cmd_t *cmd, char **argv);

/* generic command line argument handler */
struct cmd {
	char *name;
	cmd_func_t *func;
	int get;
	int set;
	char *help;
};

/* list of command line arguments */
extern cmd_t dhd_cmds[];
extern cmd_t dhd_varcmd;

/* per-port ioctl handlers */
extern int dhd_get(void *dhd, int cmd, void *buf, int len);
extern int dhd_set(void *dhd, int cmd, void *buf, int len);

#endif /* _dhdu_cmd_h_ */
./dhd/exe/dhdu_linux.c0000755000175200017520000001250512077456476017102 0ustar  xionghaoyongxionghaoyong/*
 * Linux port of dhd command line utility, hacked from wl utility.
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhdu_linux.c,v 1.3.10.2.2.3 2009/01/27 01:02:28 Exp $
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <string.h>
#include <errno.h>
#ifndef TARGETENV_android
#include <error.h>
#endif /* TARGETENV_android */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>


typedef u_int64_t u64;
typedef u_int32_t u32;
typedef u_int16_t u16;
typedef u_int8_t u8;
#include <linux/sockios.h>
#include <linux/ethtool.h>

#include <typedefs.h>
#include <dhdioctl.h>
#include "dhdu.h"

#define DEV_TYPE_LEN 4 /* length for devtype 'dhd' */

static void
syserr(char *s)
{
	fprintf(stderr, "%s: ", dhdu_av0);
	perror(s);
	exit(errno);
}

static int
dhd_ioctl(void *dhd, int cmd, void *buf, int len, bool set)
{
	struct ifreq *ifr = (struct ifreq *)dhd;
	dhd_ioctl_t ioc;
	int ret = 0;
	int s;

	/* open socket to kernel */
	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
		syserr("socket");

	/* do it */
	ioc.cmd = cmd;
	ioc.buf = buf;
	ioc.len = len;
	ioc.set = set;
	ioc.driver = DHD_IOCTL_MAGIC;
	ifr->ifr_data = (caddr_t) &ioc;
	if ((ret = ioctl(s, SIOCDEVPRIVATE, ifr)) < 0) {
		if (cmd != DHD_GET_MAGIC) {
			ret = IOCTL_ERROR;
		}
	}

	/* cleanup */
	close(s);
	return ret;
}

static int
dhd_get_dev_type(char *name, void *buf, int len)
{
	int s;
	int ret;
	struct ifreq ifr;
	struct ethtool_drvinfo info;

	/* open socket to kernel */
	if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
		syserr("socket");

	/* get device type */
	memset(&info, 0, sizeof(info));
	info.cmd = ETHTOOL_GDRVINFO;
	strcpy(info.driver, "?dhd");
	ifr.ifr_data = (caddr_t)&info;
	strncpy(ifr.ifr_name, name, IFNAMSIZ);
	if ((ret = ioctl(s, SIOCETHTOOL, &ifr)) < 0) {

		/* print a good diagnostic if not superuser */
		if (errno == EPERM)
			syserr("dhd_get_dev_type");

		*(char *)buf = '\0';
	}
	else
		strncpy(buf, info.driver, len);

	close(s);
	return ret;
}

int
dhd_get(void *dhd, int cmd, void *buf, int len)
{
	return dhd_ioctl(dhd, cmd, buf, len, FALSE);
}

int
dhd_set(void *dhd, int cmd, void *buf, int len)
{
	return dhd_ioctl(dhd, cmd, buf, len, TRUE);
}

void
dhd_find(struct ifreq *ifr)
{
	char proc_net_dev[] = "/proc/net/dev";
	FILE *fp;
	char buf[1000], *c, *name;
	char dev_type[DEV_TYPE_LEN];

	ifr->ifr_name[0] = '\0';

	/* eat first two lines */
	if (!(fp = fopen(proc_net_dev, "r")) ||
	    !fgets(buf, sizeof(buf), fp) ||
	    !fgets(buf, sizeof(buf), fp))
		return;

	while (fgets(buf, sizeof(buf), fp)) {
		c = buf;
		while (isspace(*c))
			c++;
		if (!(name = strsep(&c, ":")))
			continue;
		strncpy(ifr->ifr_name, name, IFNAMSIZ);
		if (dhd_get_dev_type(name, dev_type, DEV_TYPE_LEN) >= 0 &&
			!strncmp(dev_type, "dhd", 3))
			if (dhd_check((void *)ifr) == 0)
				break;
		ifr->ifr_name[0] = '\0';
	}

	fclose(fp);
}

int
main(int argc, char **argv)
{
	struct ifreq ifr;
	cmd_t *cmd = NULL;
	int err = 0;
	char *ifname = NULL;
	int help = 0;
	int status = CMD_DHD;

	UNUSED_PARAMETER(argc);

	dhdu_av0 = argv[0];

	memset(&ifr, 0, sizeof(ifr));

	for (++argv; *argv;) {

		/* command option */
		if ((status = dhd_option(&argv, &ifname, &help)) == CMD_OPT) {
			if (help)
				break;
			if (ifname) {
				if (strlen(ifname) > IFNAMSIZ) {
					fprintf(stderr, "%s: interface name too long\n", dhdu_av0);
					break;
				}
				strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
			}
			continue;
		}

		/* parse error */
		else if (status == CMD_ERR)
			break;

		/* use default if no interface specified */
		if (!*ifr.ifr_name)
			dhd_find(&ifr);
		/* validate the interface */
		if (!*ifr.ifr_name || dhd_check((void *)&ifr)) {
			fprintf(stderr, "%s: dhd driver adapter not found\n", dhdu_av0);
			exit(1);
		}

		/* search for command */
		for (cmd = dhd_cmds; cmd->name && strcmp(cmd->name, *argv); cmd++);

		/* defaults to using the set_var and get_var commands */
		if (cmd->name == NULL)
			cmd = &dhd_varcmd;

		/* do command */
		if (cmd->name)
			err = (*cmd->func)((void *)&ifr, cmd, argv);
		break;
	}

	/* In case of COMMAND_ERROR, command has already printed an error message */
	if (!cmd)
		dhd_usage(NULL);
	else if (err == USAGE_ERROR)
		dhd_cmd_usage(cmd);
	else if (err == IOCTL_ERROR)
		dhd_printlasterror((void *)&ifr);

	return err;
}
./dhd/exe/dhdu.c0000755000175200017520000015343312077456476015671 0ustar  xionghaoyongxionghaoyong/*
 * Common code for dhd utility, hacked from wl utility
 *
 * Copyright (C) 1999-2010, Broadcom Corporation
 * 
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 * 
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module.  An independent module is a module which is not
 * derived from this software.  The special exception does not apply to any
 * modifications of the software.
 * 
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 * $Id: dhdu.c,v 1.52.2.10.2.6.2.14 2010/01/19 07:24:15 Exp $
 */

/* For backwards compatibility, the absense of the define 'BWL_NO_FILESYSTEM_SUPPORT'
 * implies that a filesystem is supported.
 */
#if !defined(BWL_NO_FILESYSTEM_SUPPORT)
#define BWL_FILESYSTEM_SUPPORT
#endif


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>

#include <typedefs.h>
#include <epivers.h>
#include <proto/ethernet.h>
#include <dhdioctl.h>
#include <sdiovar.h>
#include <bcmutils.h>
#include <bcmendian.h>
#include "dhdu.h"


#include "miniopt.h"

#include <errno.h>

#include <trxhdr.h>

#define stricmp strcasecmp
#define strnicmp strncasecmp


static cmd_func_t dhd_var_void;
static cmd_func_t dhd_varint, dhd_varstr;
static cmd_func_t dhd_var_getandprintstr, dhd_var_getint, dhd_var_get;
static cmd_func_t dhd_var_setint;

static cmd_func_t dhd_version, dhd_list, dhd_msglevel;

#ifdef SDTEST
static cmd_func_t dhd_pktgen;
#endif
static cmd_func_t dhd_sprom;
static cmd_func_t dhd_sdreg;
static cmd_func_t dhd_sd_msglevel, dhd_sd_blocksize, dhd_sd_mode, dhd_sd_reg;
static cmd_func_t dhd_dma_mode;
static cmd_func_t dhd_membytes, dhd_download, dhd_upload, dhd_vars, dhd_idleclock, dhd_idletime;
static cmd_func_t dhd_logstamp;

static int dhd_var_getbuf(void *dhd, char *iovar, void *param, int param_len, void **bufptr);
static int dhd_var_setbuf(void *dhd, char *iovar, void *param, int param_len);

static uint dhd_iovar_mkbuf(char *name, char *data, uint datalen,
                            char *buf, uint buflen, int *perr);
static int dhd_iovar_getint(void *dhd, char *name, int *var);
static int dhd_iovar_setint(void *dhd, char *name, int var);

#if defined(BWL_FILESYSTEM_SUPPORT)
static int file_size(char *fname);
static int read_vars(char *fname, char *buf, int buf_maxlen);
#endif



/* dword align allocation */
static union {
	char bufdata[DHD_IOCTL_MAXLEN];
	uint32 alignme;
} bufstruct_dhd;
static char *buf = (char*) &bufstruct_dhd.bufdata;

/* integer output format, default to signed integer */
static uint8 int_fmt;

typedef struct {
	uint value;
	char *string;
} dbg_msg_t;

static int dhd_do_msglevel(void *dhd, cmd_t *cmd, char **argv, dbg_msg_t *dbg_msg);

/* Actual command table */
cmd_t dhd_cmds[] = {
	{ "cmds", dhd_list, -1, -1,
	"generate a short list of available commands"},
	{ "version", dhd_version, DHD_GET_VAR, -1,
	"get version information" },
	{ "msglevel", dhd_msglevel, DHD_GET_VAR, DHD_SET_VAR,
	"get/set message bits" },
	{ "wlmsglevel", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"get/set wl message(in dhd) bits" },
	{ "bcmerrorstr", dhd_var_getandprintstr, DHD_GET_VAR, -1,
	"errorstring"},
	{ "wdtick", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"watchdog tick time (ms units)"},
	{ "intr", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"use interrupts on the bus"},
	{ "pollrate", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"number of ticks between bus polls (0 means no polling)"},
	{ "idletime", dhd_idletime, DHD_GET_VAR, DHD_SET_VAR,
	"number of ticks for activity timeout (-1: immediate, 0: never)"},
	{ "idleclock", dhd_idleclock, DHD_GET_VAR, DHD_SET_VAR,
	"idleclock active | stopped | <N>\n"
	"\tactive (0)   - do not request any change to the SD clock\n"
	"\tstopped (-1) - request SD clock be stopped on activity timeout\n"
	"\t<N> (other)  - an sd_divisor value to request on activity timeout\n"},
	{ "sd1idle", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"change mode to SD1 when turning off clock at idle"},
	{ "forceeven", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"force SD tx/rx buffers to be even"},
	{ "readahead", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"enable readahead feature (look for next frame len in headers)"},
	{ "sdrxchain", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"enable packet chains to SDIO stack for glom receive"},
	{ "alignctl", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"align control frames"},
	{ "sdalign", dhd_varint, DHD_GET_VAR, -1,
	"display the (compiled in) alignment target for sd requests"},
	{ "txbound", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"get/set maximum number of tx frames per scheduling"},
	{ "rxbound", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"get/set maximum number of rx frames per scheduling"},
	{ "txminmax", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"get/set maximum number of tx frames per scheduling while rx frames outstanding"},
	{ "dump", dhd_varstr, DHD_GET_VAR, -1,
	"dump information"},
	{ "clearcounts", dhd_var_void, -1, DHD_SET_VAR,
	"reset the bus stats shown in the dhd dump"},
	{ "logdump", dhd_varstr, DHD_GET_VAR, -1,
	"dump the timestamp logging buffer"},
	{ "logcal", dhd_varint, -1, DHD_SET_VAR,
	"logcal <n>  -- log around an osl_delay of <n> usecs"},
	{ "logstamp", dhd_logstamp, -1, DHD_SET_VAR,
	"logstamp [<n1>] [<n2>]  -- add a message to the log"},
	{ "memsize", dhd_varint, DHD_GET_VAR, -1,
	"display size of onchip SOCRAM"},
	{ "membytes", dhd_membytes, DHD_GET_VAR, DHD_SET_VAR,
	"membytes [-h | -r | -i] <address> <length> [<bytes>]\n"
	"\tread or write data in the dongle ram\n"
	"\t-h   <bytes> is a sequence of hex digits, else a char string\n"
	"\t-r   output as a raw write rather than hexdump display\n"},
	{ "download", dhd_download, -1, DHD_SET_VAR,
	"download [-a <address>] [--noreset] [--norun] <binfile> [<varsfile>]\n"
	"\tdownload file to specified dongle ram address and start CPU\n"
	"\toptional vars file will replace vars parsed from the CIS\n"
	"\t--noreset    do not reset SOCRAM core before download\n"
	"\t--norun      do not start dongle CPU after download\n"
	"\tdefault <address> is 0\n"},
	{ "vars", dhd_vars, DHD_GET_VAR, DHD_SET_VAR,
	"vars [<file>]\n"
	"\toverride SPROM vars with <file> (before download)\n"},
	{ "upload", dhd_upload, -1, -1,
	"upload [-a <address> ] <file> [<size>]\n"
	"\tupload dongle RAM content into a file\n"
	"\tdefault <address> is 0, default <size> is RAM size"},
	{ "srdump", dhd_sprom, DHD_GET_VAR, -1,
	"display SPROM content" },
	{ "srwrite", dhd_sprom, -1, DHD_SET_VAR,
	"write data or file content to SPROM\n"
	"\tsrwrite <word-offset> <word-value> ...\n"
	"\tsrwrite [-c] <srom-file-path>\n"
	"\t  -c means write regardless of crc"},
	{ "sleep", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"enter/exit simulated host sleep (bus powerdown w/OOB wakeup)"},
#ifdef SDTEST
	{ "extloop", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"external loopback: convert all tx data to echo test frames"},
	{ "pktgen", dhd_pktgen, DHD_GET_VAR, DHD_SET_VAR,
	"configure/report pktgen status (SDIO)\n"
	"\t-f N     frequency: send/recv a burst every N ticks\n"
	"\t-c N     count: send/recv N packets each burst\n"
	"\t-t N     total: stop after a total of N packets\n"
	"\t-p N     print: display counts on console every N bursts\n"
	"\t-m N     min: set minimum length of packet data\n"
	"\t-M N     Max: set maximum length of packet data\n"
	"\t-l N     len: set fixed length of packet data\n"
	"\t-s N     stop after N tx failures\n"
	"\t-d dir   test direction/type:\n"
	"\t            send -- send packets discarded by dongle\n"
	"\t            echo -- send packets to be echoed by dongle\n"
	"\t            burst -- request bursts (of size <-c>) from dongle\n"
	"\t              one every <-f> ticks, until <-t> total requests\n"
	"\t            recv -- request dongle enter continuous send mode,\n"
	"\t              read up to <-c> pkts every <-f> ticks until <-t>\n"
	"\t              total reads\n"},
#endif /* SDTEST */
	{ "sdreg", dhd_sdreg, DHD_GET_VAR, DHD_SET_VAR,
	"g/set sdpcmdev core register (f1) across SDIO (CMD53)"},
	{ "sbreg", dhd_sdreg, DHD_GET_VAR, DHD_SET_VAR,
	"g/set any backplane core register (f1) across SDIO (CMD53)"},
	{ "sd_cis", dhd_var_getandprintstr, DHD_GET_VAR, -1,
	"dump sdio CIS"},
	{ "sd_devreg", dhd_sd_reg, DHD_GET_VAR, DHD_SET_VAR,
	"g/set device register across SDIO bus (CMD52)"},
	{ "sd_hostreg", dhd_sd_reg, DHD_GET_VAR, DHD_SET_VAR,
	"g/set local controller register"},
	{ "sd_blocksize", dhd_sd_blocksize, DHD_GET_VAR, DHD_SET_VAR,
	"g/set block size for a function"},
	{ "sd_blockmode", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"g/set blockmode"},
	{ "sd_ints", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"g/set client ints"},
	{ "sd_dma", dhd_dma_mode, DHD_GET_VAR, DHD_SET_VAR,
	"g/set dma usage: [PIO | SDMA | ADMA1 | ADMA2]"},
	{ "sd_yieldcpu", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"allow blocking (yield of CPU) on data xfer"},
	{ "sd_minyield", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"minimum xfer size to allow CPU yield"},
	{ "sd_forcerb", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"force readback when changing local interrupt settings"},
	{ "sd_numints", dhd_varint, DHD_GET_VAR, -1,
	"number of device interrupts"},
	{ "sd_numlocalints", dhd_varint, DHD_GET_VAR, -1,
	"number of non-device interrupts"},
	{ "sd_divisor", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"set the divisor for SDIO clock generation"},
	{ "sd_power", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"set the SD Card slot power"},
	{ "sd_clock", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"turn on/off the SD Clock"},
	{ "sd_crc", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"turn on/off CRC checking in SPI mode"},
	{ "sd_mode", dhd_sd_mode, DHD_GET_VAR, DHD_SET_VAR,
	"g/set SDIO bus mode (spi, sd1, sd4)"},
	{ "sd_highspeed", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"set the high-speed clocking mode"},
	{ "sd_msglevel", dhd_sd_msglevel, DHD_GET_VAR, DHD_SET_VAR,
	"g/set debug message level"},
	{ "sd_hciregs", dhd_varstr, DHD_GET_VAR, -1,
	"display host-controller interrupt registers"},
	{ "sdiod_drive", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"SDIO Device drive strength in milliamps. (0=tri-state, 1-12mA)"},
	{ "devreset", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"Move device into or out of reset state (1/reset, or 0/operational)"},
	{ "connstatus", dhd_varstr, DHD_GET_VAR, -1,
	"get status of last connection attempt" },
	{ "ioctl_timeout", dhd_varint, DHD_GET_VAR, DHD_SET_VAR,
	"IOCTL response timeout (milliseconds)."},
	{ NULL, NULL, 0, 0, NULL }
};

cmd_t dhd_varcmd = {"var", dhd_varint, -1, -1, "unrecognized name, type -h for help"};
char *dhdu_av0;

#if defined(BWL_FILESYSTEM_SUPPORT)
static int
file_size(char *fname)
{
	FILE *fp;
	long size = -1;

	/* Can't use stat() because of Win CE */

	if ((fp = fopen(fname, "rb")) == NULL ||
	    fseek(fp, 0, SEEK_END) < 0 ||
	    (size = ftell(fp)) < 0)
		fprintf(stderr, "Could not determine size of %s: %s\n",
		        fname, strerror(errno));

	if (fp != NULL)
		fclose(fp);

	return (int)size;
}
#endif   /* BWL_FILESYSTEM_SUPPORT */


/* parse/validate the command line arguments */
/*
* pargv is updated upon return if the first argument is an option.
 * It remains intact otherwise.
 */
int
dhd_option(char ***pargv, char **pifname, int *phelp)
{
	char *ifname = NULL;
	int help = FALSE;
	int status = CMD_OPT;
	char **argv = *pargv;

	int_fmt = INT_FMT_DEC;

	while (*argv) {
		/* select different adapter */
		if (!strcmp(*argv, "-a") || !strcmp(*argv, "-i")) {
			char *opt = *argv++;
			ifname = *argv;
			if (!ifname) {
				fprintf(stderr,
					"error: expected interface name after option %s\n", opt);
				status = CMD_ERR;
				break;
			}
		}

		/* integer output format */
		else if (!strcmp(*argv, "-d"))
			int_fmt = INT_FMT_DEC;
		else if (!strcmp(*argv, "-u"))
			int_fmt = INT_FMT_UINT;
		else if (!strcmp(*argv, "-x"))
			int_fmt = INT_FMT_HEX;

		/* command usage */
		else if (!strcmp(*argv, "-h"))
			help = TRUE;

		/* done with generic options */
		else {
			status = CMD_DHD;
			break;
		}

		/* consume the argument */
		argv ++;
		break;
	}

	*phelp = help;
	*pifname = ifname;
	*pargv = argv;

	return status;
}

void
dhd_cmd_usage(cmd_t *cmd)
{
	if (strlen(cmd->name) >= 8)
		fprintf(stderr, "%s\n\t%s\n\n", cmd->name, cmd->help);
	else
		fprintf(stderr, "%s\t%s\n\n", cmd->name, cmd->help);
}

/* Dump out short list of commands */
static int
dhd_list(void *dhd, cmd_t *garb, char **argv)
{
	cmd_t *cmd;
	int nrows, i, len;
	char *buf;
	int letter, col, row, pad;

	UNUSED_PARAMETER(dhd);
	UNUSED_PARAMETER(garb);
	UNUSED_PARAMETER(argv);

	for (cmd = dhd_cmds, nrows = 0; cmd->name; cmd++)
		    nrows++;

	nrows /= 4;
	nrows++;

	len = nrows * 80 + 2;
	buf = malloc(len);
	if (buf == NULL) {
		fprintf(stderr, "Failed to allocate buffer of %d bytes\n", len);
		return COMMAND_ERROR;
	}
	for (i = 0; i < len; i++)
		*(buf+i) = 0;

	row = col = 0;
	for (letter = 'a'; letter < 'z'; letter++) {
		for (cmd = dhd_cmds; cmd->name; cmd++) {
			if (cmd->name[0] == letter || cmd->name[0] == letter - 0x20) {
				strcat(buf+row*80, cmd->name);
				pad = 18 * (col + 1) - strlen(buf+row*80);
				if (pad < 1)
					pad = 1;
				for (; pad; pad--)
					strcat(buf+row*80, " ");
				row++;
				if (row == nrows) {
					col++; row = 0;
				}
			}
		}
	}
	for (row = 0; row < nrows; row++)
		printf("%s\n", buf+row*80);

	printf("\n");
	free(buf);
	return (0);
}

void
dhd_cmds_usage(cmd_t *port_cmds)
{
	cmd_t *port_cmd;
	cmd_t *cmd;

	/* print usage of port commands */
	for (port_cmd = port_cmds; port_cmd && port_cmd->name; port_cmd++)
		/* Check for wc_cmd */
		dhd_cmd_usage(port_cmd);

	/* print usage of common commands without port counterparts */
	for (cmd = dhd_cmds; cmd->name; cmd++) {
		/* search if port counterpart exists */
		for (port_cmd = port_cmds; port_cmd && port_cmd->name; port_cmd++)
			if (!strcmp(port_cmd->name, cmd->name))
				break;
		if (!port_cmd || !port_cmd->name)
			dhd_cmd_usage(cmd);
	}
}

void
dhd_usage(cmd_t *port_cmds)
{
	fprintf(stderr,
	        "Usage: %s [-a|i <adapter>] [-h] [-d|u|x] <command> [arguments]\n",
		dhdu_av0);

	fprintf(stderr, "\n");
	fprintf(stderr, "  -h		this message\n");
	fprintf(stderr, "  -a, -i	adapter name or number\n");
	fprintf(stderr, "  -d		display values as signed integer\n");
	fprintf(stderr, "  -u		display values as unsigned integer\n");
	fprintf(stderr, "  -x		display values as hexdecimal\n");
	fprintf(stderr, "\n");

	dhd_cmds_usage(port_cmds);
}

int
dhd_check(void *dhd)
{
	int ret;
	int val;

	if ((ret = dhd_get(dhd, DHD_GET_MAGIC, &val, sizeof(int)) < 0))
		return ret;
	if (val != DHD_IOCTL_MAGIC)
		return -1;
	if ((ret = dhd_get(dhd, DHD_GET_VERSION, &val, sizeof(int)) < 0))
		return ret;
	if (val > DHD_IOCTL_VERSION) {
		fprintf(stderr, "Version mismatch, please upgrade\n");
		return -1;
	}
	return 0;
}

void
dhd_printint(int val)
{
	switch (int_fmt) {
	case INT_FMT_UINT:
		printf("%u\n", val);
		break;
	case INT_FMT_HEX:
		printf("0x%x\n", val);
		break;
	case INT_FMT_DEC:
	default:
		printf("%d\n", val);
		break;
	}
}

/* pretty hex print a contiguous buffer (tweaked from wlu) */
void
dhd_hexdump(uchar *buf, uint nbytes, uint saddr)
{
	char line[256];
	char* p;
	uint i;

	if (nbytes == 0) {
		printf("\n");
		return;
	}

	p = line;
	for (i = 0; i < nbytes; i++) {
		if (i % 16 == 0) {
			p += sprintf(p, "%08x: ", saddr + i);	/* line prefix */
		}
		p += sprintf(p, "%02x ", buf[i]);
		if (i % 16 == 15) {
			uint j;
			p += sprintf(p, "  ");
			for (j = i-15; j <= i; j++)
				p += sprintf(p, "%c",
				             ((buf[j] >= 0x20 && buf[j] <= 0x7f) ? buf[j] : '.'));
			printf("%s\n", line);		/* flush line */
			p = line;
		}
	}

	/* flush last partial line */
	if (p != line)
		printf("%s\n", line);
}


#ifdef SDTEST
static int
dhd_pktgen(void *dhd, cmd_t *cmd, char **argv)
{
	int ret = 0;
	void *ptr = NULL;
	dhd_pktgen_t pktgen;
	char *str;

	UNUSED_PARAMETER(dhd);
	UNUSED_PARAMETER(cmd);

	/* Get current settings */
	if ((ret = dhd_var_getbuf(dhd, "pktgen", NULL, 0, &ptr)) != 0)
		return ret;
	memcpy(&pktgen, ptr, sizeof(pktgen));

	if (pktgen.version != DHD_PKTGEN_VERSION) {
		fprintf(stderr, "pktgen version mismatch (module %d app %d)\n",
		        pktgen.version, DHD_PKTGEN_VERSION);
		return COMMAND_ERROR;
	}

	/* Presence of args implies a set, else a get */
	if (*++argv) {
		miniopt_t opts;
		int opt_err;

		/* Initialize option parser */
		miniopt_init(&opts, "pktgen", "", FALSE);

		while ((opt_err = miniopt(&opts, argv)) != -1) {
			if (opt_err == 1) {
				fprintf(stderr, "pktgen options error\n");
				ret = -1;
				goto exit;
			}
			argv += opts.consumed;

			if (!opts.good_int && opts.opt != 'd') {
				fprintf(stderr, "invalid integer %s\n", opts.valstr);
				ret = -1;
				goto exit;
			}

			switch (opts.opt) {
			case 'f':
				pktgen.freq = opts.uval;
				break;
			case 'c':
				pktgen.count = opts.uval;
				break;
			case 'p':
				pktgen.print = opts.uval;
				break;
			case 't':
				pktgen.total = opts.uval;
				break;
			case 's':
				pktgen.stop = opts.uval;
				break;
			case 'm':
				pktgen.minlen = opts.uval;
				break;
			case 'M':
				pktgen.maxlen = opts.uval;
				break;
			case 'l': case 'L':
				pktgen.minlen = pktgen.maxlen = opts.uval;
				break;
			case 'd':
				if (!strcmp(opts.valstr, "send"))
					pktgen.mode = DHD_PKTGEN_SEND;
				else if (!strcmp(opts.valstr, "echo"))
					pktgen.mode = DHD_PKTGEN_ECHO;
				else if (!strcmp(opts.valstr, "burst"))
					pktgen.mode = DHD_PKTGEN_RXBURST;
				else if (!strcmp(opts.valstr, "recv"))
					pktgen.mode = DHD_PKTGEN_RECV;
				else {
					fprintf(stderr, "unrecognized dir mode %s\n",
					        opts.valstr);
					return USAGE_ERROR;
				}
				break;

			default:
				fprintf(stderr, "option parsing error (key %s valstr %s)\n",
				        opts.key, opts.valstr);
				ret = USAGE_ERROR;
				goto exit;
			}
		}

		if (pktgen.maxlen < pktgen.minlen) {
			fprintf(stderr, "min/max error (%d/%d)\n", pktgen.minlen, pktgen.maxlen);
			ret = -1;
			goto exit;
		}

		/* Set the new values */
		ret = dhd_var_setbuf(dhd, "pktgen", &pktgen, sizeof(pktgen));
	} else {
		printf("Counts: %d send attempts, %d received, %d tx failures\n",
		       pktgen.numsent, pktgen.numrcvd, pktgen.numfail);
	}

	/* Show configuration in either case */
	switch (pktgen.mode) {
	case DHD_PKTGEN_ECHO: str = "echo"; break;
	case DHD_PKTGEN_SEND: str = "send"; break;
	case DHD_PKTGEN_RECV: str = "recv"; break;
	case DHD_PKTGEN_RXBURST: str = "burst"; break;
	default: str = "UNKNOWN"; break;
	}

	printf("Config: mode %s %d pkts (len %d-%d) each %d ticks\n",
	       str, pktgen.count, pktgen.minlen, pktgen.maxlen, pktgen.freq);

	/* Second config line for optional items */
	str = "        ";
	if (pktgen.total) {
		printf("%slimit %d", str, pktgen.total);
		str = ", ";
	}
	if (pktgen.print) {
		printf("%sprint every %d ticks", str, (pktgen.freq * pktgen.print));
		str = ", ";
	}
	if (pktgen.stop) {
		printf("%sstop after %d tx failures", str, pktgen.stop);
		str = ", ";
	}
	if (str[0] == ',')
		printf("\n");

exit:
	return ret;
}
#endif /* SDTEST */

static dbg_msg_t dhd_sd_msgs[] = {
	{SDH_ERROR_VAL,	"error"},
	{SDH_TRACE_VAL,	"trace"},
	{SDH_INFO_VAL,	"info"},
	{SDH_DATA_VAL,	"data"},
	{SDH_CTRL_VAL,	"control"},
	{SDH_LOG_VAL,	"log"},
	{SDH_DMA_VAL,	"dma"},
	{0,		NULL}
};

static int
dhd_sd_msglevel(void *dhd, cmd_t *cmd, char **argv)
{
	return dhd_do_msglevel(dhd, cmd, argv, dhd_sd_msgs);
}

static int
dhd_sd_blocksize(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	int argc;
	char *endptr = NULL;
	void *ptr = NULL;
	int func, size;

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	if (argc < 1 || argc > 2) {
		printf("required args: function [size] (size 0 means max)\n");
		return USAGE_ERROR;
	}

	func = strtol(argv[1], &endptr, 0);
	if (*endptr != '\0') {
		printf("Invaild function: %s\n", argv[1]);
		return USAGE_ERROR;
	}

	if (argc > 1) {
		size = strtol(argv[2], &endptr, 0);
		if (*endptr != '\0') {
			printf("Invalid size: %s\n", argv[1]);
			return USAGE_ERROR;
		}
	}

	if (argc == 1) {
		if ((ret = dhd_var_getbuf(dhd, cmd->name, &func, sizeof(func), &ptr)) >= 0)
			printf("Function %d block size: %d\n", func, *(int*)ptr);
	} else {
		printf("Setting function %d block size to %d\n", func, size);
		size &= 0x0000ffff; size |= (func << 16);
		ret = dhd_var_setbuf(dhd, cmd->name, &size, sizeof(size));
	}

	return (ret);
}

static int
dhd_sd_mode(void *wl, cmd_t *cmd, char **argv)
{
	int ret;
	int argc;
	int sdmode;

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	if (argv[1]) {
		if (!strcmp(argv[1], "spi")) {
			strcpy(argv[1], "0");
		} else if (!strcmp(argv[1], "sd1")) {
			strcpy(argv[1], "1");
		} else if (!strcmp(argv[1], "sd4")) {
			strcpy(argv[1], "2");
		} else {
			return USAGE_ERROR;
		}

		ret = dhd_var_setint(wl, cmd, argv);

	} else {
		if ((ret = dhd_var_get(wl, cmd, argv))) {
			return (ret);
		} else {
			sdmode = *(int32*)buf;

			printf("SD Mode is: %s\n",
			       sdmode == 0 ? "SPI"
			       : sdmode == 1 ? "SD1"
				   : sdmode == 2 ? "SD4" : "Unknown");
		}
	}

	return (ret);
}

static int
dhd_dma_mode(void *wl, cmd_t *cmd, char **argv)
{
	int ret;
	int argc;
	int dmamode;

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	if (argv[1]) {
		if (!stricmp(argv[1], "pio")) {
			strcpy(argv[1], "0");
		} else if (!strcmp(argv[1], "0")) {
		} else if (!stricmp(argv[1], "dma")) {
			strcpy(argv[1], "1");
		} else if (!stricmp(argv[1], "sdma")) {
			strcpy(argv[1], "1");
		} else if (!strcmp(argv[1], "1")) {
		} else if (!stricmp(argv[1], "adma1")) {
			strcpy(argv[1], "2");
		} else if (!stricmp(argv[1], "adma")) {
			strcpy(argv[1], "3");
		} else if (!stricmp(argv[1], "adma2")) {
			strcpy(argv[1], "3");
		} else {
			return USAGE_ERROR;
		}

		ret = dhd_var_setint(wl, cmd, argv);

	} else {
		if ((ret = dhd_var_get(wl, cmd, argv))) {
			return (ret);
		} else {
			dmamode = *(int32*)buf;

			printf("DMA Mode is: %s\n",
			       dmamode == 0 ? "PIO"
			       : dmamode == 1 ? "SDMA"
			       : dmamode == 2 ? "ADMA1"
			       : dmamode == 3 ? "ADMA2"
			       : "Unknown");
		}
	}

	return (ret);
}


static int
dhd_sdreg(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	sdreg_t sdreg;
	uint argc;
	char *ptr = NULL;

	UNUSED_PARAMETER(cmd);

	bzero(&sdreg, sizeof(sdreg));

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	/* required args: offset (will default size) */
	if (argc < 1) {
		printf("required args: offset[/size] [value]\n");
		return USAGE_ERROR;
	}

	sdreg.offset = strtoul(argv[1], &ptr, 0);
	if (*ptr && *ptr != '/') {
		printf("Bad arg: %s\n", argv[1]);
		return USAGE_ERROR;
	}

	/* read optional /size */
	if (*ptr == '/') {
		sdreg.func = strtol((ptr+1), &ptr, 0);
		if (*ptr || ((sdreg.func != 2) && sdreg.func != 4)) {
			printf("Bad size option?\n");
			return USAGE_ERROR;
		}
	}
	else {
		sdreg.func = 4;
		printf("Defaulting to register size 4\n");
	}

	if (argc > 1) {
		sdreg.value = strtoul(argv[2], &ptr, 0);
		if (*ptr) {
			printf("Bad value: %s\n", argv[2]);
			return USAGE_ERROR;
		}
	}

	if (argc <= 1) {
		ret = dhd_var_getbuf(dhd, argv[0], &sdreg, sizeof(sdreg), (void**)&ptr);
		if (ret >= 0)
			printf("0x%0*x\n", (2 * sdreg.func), *(int *)ptr);
	} else {
		ret = dhd_var_setbuf(dhd, argv[0], &sdreg, sizeof(sdreg));
	}

	return (ret);
}

static int
dhd_membytes(void *dhd, cmd_t *cmd, char **argv)
{
	int ret = -1;
	uint argc;
	char *ptr;
	int params[2];
	uint addr;
	uint len;
	int align;

	int rawout, hexin;

	miniopt_t opts;
	int opt_err;

	/* Parse command-line options */
	miniopt_init(&opts, "membytes", "rh", FALSE);

	rawout = hexin = 0;

	argv++;
	while ((opt_err = miniopt(&opts, argv)) != -1) {
		if (opt_err == 1) {
			fprintf(stderr, "membytes options error\n");
			ret = -1;
			goto exit;
		}

		if (opts.positional)
			break;

		argv += opts.consumed;

		if (opts.opt == 'h') {
			hexin = 1;
		} else if (opts.opt == 'r') {
			rawout = 1;
		} else {
			fprintf(stderr, "membytes command error\n");
			ret = -1;
			goto exit;
		}
	}

	/* arg count */
	for (argc = 0; argv[argc]; argc++);

	/* required args: address size [<bytes>]] */
	if (argc < 2) {
		fprintf(stderr, "required args: address size [<bytes>]\n");
		return USAGE_ERROR;
	}
	if (argc < 3 && hexin) {
		fprintf(stderr, "missing <bytes> arg implies by -h\n");
		return USAGE_ERROR;
	}
	if ((argc > 2) && (rawout)) {
		fprintf(stderr, "can't have input <bytes> arg with -r or -i\n");
		return USAGE_ERROR;
	}

	/* read address */
	addr = strtoul(argv[0], &ptr, 0);
	if (*ptr) {
		fprintf(stderr, "Bad arg: %s\n", argv[0]);
		return USAGE_ERROR;
	}

	/* read size */
	len = strtoul(argv[1], &ptr, 0);
	if (*ptr) {
		fprintf(stderr, "Bad value: %s\n", argv[1]);
		return USAGE_ERROR;
	}

	align = addr & 0x03;
	if (align && argc > 2) {
		fprintf(stderr, "Can only write starting at long-aligned addresses.\n");
		return USAGE_ERROR;
	}

	/* get can just use utility function, set must copy custom buffer */
	if (argc == 2) {
		uint chunk = DHD_IOCTL_MAXLEN;
		for (addr -= align, len += align; len; addr += chunk, len -= chunk, align = 0) {
			chunk = MIN(chunk, len);
			params[0] = addr; params[1] = ROUNDUP(chunk, 4);
			ret = dhd_var_getbuf(dhd, "membytes",
			                     params, (2 * sizeof(int)), (void**)&ptr);
			if (ret < 0)
				goto exit;

			if (rawout) {
				fwrite(ptr + align, sizeof(char), chunk - align, stdout);
			} else {
				dhd_hexdump((uchar*)ptr + align, chunk - align, addr + align);
			}
		}
	} else {
		uint patlen = strlen(argv[2]);
		uint chunk, maxchunk;
		char *sptr;

		if (hexin) {
			char *inptr, *outptr;
			if (patlen & 1) {
				fprintf(stderr, "Hex (-h) must consist of whole bytes\n");
				ret = USAGE_ERROR;
				goto exit;
			}

			for (inptr = outptr = argv[2]; patlen; patlen -= 2) {
				int n1, n2;

				n1 = (int)((unsigned char)*inptr++);
				n2 = (int)((unsigned char)*inptr++);
				if (!isxdigit(n1) || !isxdigit(n2)) {
					fprintf(stderr, "invalid hex digit %c\n",
					        (isxdigit(n1) ? n2 : n1));
					ret = USAGE_ERROR;
					goto exit;
				}
				n1 = isdigit(n1) ? (n1 - '0')
				        : ((islower(n1) ? (toupper(n1)) : n1) - 'A' + 10);
				n2 = isdigit(n2) ? (n2 - '0')
				        : ((islower(n2) ? (toupper(n2)) : n2) - 'A' + 10);
				*outptr++ = (n1 * 16) + n2;
			}

			patlen = outptr - argv[2];
		}

		sptr = argv[2];
		maxchunk = DHD_IOCTL_MAXLEN - (strlen(cmd->name) + 1 + (2 * sizeof(int)));

		while (len) {
			chunk = (len > maxchunk) ? (maxchunk & ~0x3) : len;

			/* build the iovar command */
			memset(buf, 0, DHD_IOCTL_MAXLEN);
			strcpy(buf, cmd->name);
			ptr = buf + strlen(buf) + 1;
			params[0] = addr; params[1] = chunk;
			memcpy(ptr, params, (2 * sizeof(int)));
			ptr += (2 * sizeof(int));
			addr += chunk; len -= chunk;

			while (chunk--) {
				*ptr++ = *sptr++;
				if (sptr >= (argv[2] + patlen))
					sptr = argv[2];
			}

			ret = dhd_set(dhd, DHD_SET_VAR, &buf[0], (ptr - buf));
			if (ret < 0)
				goto exit;
		}
	}

exit:
	return ret;
}

static int
dhd_idletime(void *dhd, cmd_t *cmd, char **argv)
{
	int32 idletime;
	char *endptr = NULL;
	int err = 0;

	if (argv[1]) {
		if (!strcmp(argv[1], "never")) {
			idletime = 0;
		} else if (!strcmp(argv[1], "immediate") || !strcmp(argv[1], "immed")) {
			idletime = DHD_IDLE_IMMEDIATE;
		} else {
			idletime = strtol(argv[1], &endptr, 0);
			if (*endptr != '\0') {
				fprintf(stderr, "invalid number %s\n", argv[1]);
				err = -1;
			}
		}
		if ((idletime < 0) && (idletime != DHD_IDLE_IMMEDIATE)) {
			fprintf(stderr, "invalid value %s\n", argv[1]);
			err = -1;
		}

		if (!err) {
			strcpy(buf, "idletime");
			endptr = buf + strlen(buf) + 1;
			memcpy(endptr, &idletime, sizeof(uint32));
			endptr += sizeof(uint32);
			err = dhd_set(dhd, DHD_SET_VAR, &buf[0], (endptr - buf));
		}
	} else {
		if ((err = dhd_var_get(dhd, cmd, argv))) {
			return err;
		} else {
			idletime = *(int32*)buf;

			if (idletime == 0) {
				printf("0 (never)\n");
			} else if (idletime == DHD_IDLE_IMMEDIATE) {
				printf("-1 (immediate)\n");
			} else if (idletime > 0) {
				printf("%d\n", idletime);
			} else printf("%d (invalid)\n", idletime);
		}
	}
	return err;
}

static int
dhd_idleclock(void *dhd, cmd_t *cmd, char **argv)
{
	int32 idleclock;
	char *endptr = NULL;
	int err = 0;

	if (argv[1]) {
		if (!strcmp(argv[1], "active")) {
			idleclock = DHD_IDLE_ACTIVE;
		} else if (!strcmp(argv[1], "stopped")) {
			idleclock = DHD_IDLE_STOP;
		} else {
			idleclock = strtol(argv[1], &endptr, 0);
			if (*endptr != '\0') {
				fprintf(stderr, "invalid number %s\n", argv[1]);
				err = USAGE_ERROR;
			}
		}

		if (!err) {
			strcpy(buf, "idleclock");
			endptr = buf + strlen(buf) + 1;
			memcpy(endptr, &idleclock, sizeof(int32));
			endptr += sizeof(int32);
			err = dhd_set(dhd, DHD_SET_VAR, &buf[0], (endptr - buf));
		}
	} else {
		if ((err = dhd_var_get(dhd, cmd, argv))) {
			return err;
		} else {
			idleclock = *(int32*)buf;

			if (idleclock == DHD_IDLE_ACTIVE)
				printf("Idleclock %d (active)\n", idleclock);
			else if (idleclock == DHD_IDLE_STOP)
				printf("Idleclock %d (stopped)\n", idleclock);
			else
				printf("Idleclock divisor %d\n", idleclock);
		}
	}
	return err;
}

/* Word count for a 4kb SPROM */
#define SPROM_WORDS 256

static int
dhd_sprom(void *dhd, cmd_t *cmd, char **argv)
{
#if !defined(BWL_FILESYSTEM_SUPPORT)
	return (-1);
#else
	int ret, i;
	uint argc;
	char *endptr;
	char *bufp, *countptr;
	uint16 *wordptr;
	uint offset, words, bytes;
	bool nocrc = FALSE;

	char *fname;
	FILE *fp;

	UNUSED_PARAMETER(cmd);

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	/* init buffer */
	bufp = buf;
	memset(bufp, 0, DHD_IOCTL_MAXLEN);
	strcpy(bufp, "sprom");
	bufp += strlen("sprom") + 1;

	if (strcmp(argv[0], "srdump") == 0) {
		if (argc) {
			fprintf(stderr, "Command srdump doesn't take args\n");
			return USAGE_ERROR;
		}
		offset = 0;
		words = SPROM_WORDS;
		bytes = 2 * words;

		memcpy(bufp, &offset, sizeof(int));
		bufp += sizeof(int);
		memcpy(bufp, &bytes, sizeof(int));
		bufp += sizeof(int);

		if (!ISALIGNED((uintptr)bufp, sizeof(uint16))) {
			fprintf(stderr, "Internal error: unaligned word buffer\n");
			return COMMAND_ERROR;
		}
	} else {
		if (strcmp(argv[0], "srwrite") != 0) {
			fprintf(stderr, "Unimplemented sprom command: %s\n", argv[0]);
			return USAGE_ERROR;
		}

		if (argc == 0) {
			return USAGE_ERROR;
		} else if ((argc == 1) ||
		           ((argc == 2) && ((nocrc = !strcmp(argv[1], "-c"))))) {

			fname = nocrc ? argv[2] : argv[1];

			/* determine and validate file size */
			if ((ret = file_size(fname)) < 0)
				return COMMAND_ERROR;

			bytes = ret;
			offset = 0;
			words = bytes / 2;

			if (bytes != 2 * SPROM_WORDS) {
				fprintf(stderr, "Bad file size\n");
				return COMMAND_ERROR;
			}

			memcpy(bufp, &offset, sizeof(int));
			bufp += sizeof(int);
			memcpy(bufp, &bytes, sizeof(int));
			bufp += sizeof(int);

			if (!ISALIGNED((uintptr)bufp, sizeof(uint16))) {
				fprintf(stderr, "Internal error: unaligned word buffer\n");
				return COMMAND_ERROR;
			}

			if ((fp = fopen(fname, "rb")) == NULL) {
				fprintf(stderr, "Could not open %s: %s\n",
				        fname, strerror(errno));
				return COMMAND_ERROR;
			}

			if (fread((uint16*)bufp, sizeof(uint16), words, fp) != words) {
				fprintf(stderr, "Could not read %d bytes from %s\n",
				        words * 2, fname);
				fclose(fp);
				return COMMAND_ERROR;
			}

			fclose(fp);

			if (!nocrc &&
			    hndcrc8((uint8*)bufp, bytes, CRC8_INIT_VALUE) != CRC8_GOOD_VALUE) {
				fprintf(stderr, "CRC check failed: 0x%02x, should be 0x%02x.\n",
				        ((uint8*)bufp)[bytes-1],
				        ~hndcrc8((uint8*)bufp, bytes - 1, CRC8_INIT_VALUE) & 0xff);
				return COMMAND_ERROR;
			}

			ltoh16_buf(bufp, bytes);
		} else {
			offset = strtoul(*++argv, &endptr, 0) * 2;
			if (*endptr != '\0') {
				fprintf(stderr, "offset %s is not an integer\n", *argv);
				return USAGE_ERROR;
			}

			memcpy(bufp, &offset, sizeof(int));
			bufp += sizeof(int);
			countptr = bufp;
			bufp += sizeof(int);

			if (!ISALIGNED((uintptr)bufp, sizeof(uint16))) {
				fprintf(stderr, "Internal error: unaligned word buffer\n");
				return COMMAND_ERROR;
			}

			for (words = 0, wordptr = (uint16*)bufp; *++argv; words++) {
				*wordptr++ = (uint16)strtoul(*argv, &endptr, 0);
				if (*endptr != '\0') {
					fprintf(stderr, "value %s is not an integer\n", *argv);
					return USAGE_ERROR;
				}
				if (words > SPROM_WORDS) {
					fprintf(stderr, "max of %d words\n", SPROM_WORDS);
					return USAGE_ERROR;
				}
			}

			bytes = 2 * words;
			memcpy(countptr, &bytes, sizeof(int));
		}
	}

	if (argc) {
		ret = dhd_set(dhd, DHD_SET_VAR, buf,
		              (strlen("sprom") + 1) + (2 * sizeof(int)) + bytes);
		return (ret);
	} else {
		ret = dhd_get(dhd, DHD_GET_VAR, buf,
		              (strlen("sprom") + 1) + (2 * sizeof(int)) + bytes);
		if (ret < 0) {
			return ret;
		}

		for (i = 0; i < (int)words; i++) {
			if ((i % 8) == 0)
				printf("\n  srom[%03d]:  ", i);
			printf("0x%04x  ", ((uint16*)buf)[i]);
		}
		printf("\n");
	}

	return 0;
#endif /* BWL_FILESYSTEM_SUPPORT */
}

/*
 * read_vars: reads an environment variables file into a buffer,
 * reformatting them and returning the length (-1 on error).
 *
 * The input text file consists of lines of the form "<var>=<value>\n".
 * CRs are ignored, as are blank lines and comments beginning with '#'.
 *
 * The output buffer consists of blocks of the form "<var>=<value>\0"
 * (the newlines have been replaced by NULs)
 *
 * Todo: allow quoted variable names and quoted values.
*/

#if defined(BWL_FILESYSTEM_SUPPORT)
static int
read_vars(char *fname, char *buf, int buf_maxlen)
{
	FILE *fp;
	int buf_len, slen;
	char line[256], *s, *e;
	int line_no = 0;

	if ((fp = fopen(fname, "rb")) == NULL) {
		fprintf(stderr, "Cannot open NVRAM file %s: %s\n",
		        fname, strerror(errno));
		exit(1);
	}

	buf_len = 0;

	while (fgets(line, sizeof(line), fp) != NULL) {
		bool found_eq = FALSE;

		/* Ensure line length is limited */
		line[sizeof(line) - 1] = 0;

		/* Skip any initial white space */
		for (s = line; *s == ' ' || *s == '\t'; s++)
			;

		/* Determine end of string */
		for (e = s; *e != 0 && *e != '#' && *e != '\r' && *e != '\n'; e++)
			if (*e == '=')
				found_eq = TRUE;

		/* Strip any white space from end of string */
		while (e > s && (e[-1] == ' ' || e[-1] == '\t'))
			e--;

		slen = e - s;

		/* Skip lines that end up blank */
		if (slen == 0)
			continue;

		if (!found_eq) {
			fprintf(stderr, "Invalid line %d in NVRAM file %s\n", line_no, fname);
			fclose(fp);
			return -1;
		}

		if (buf_len + slen + 1 > buf_maxlen) {
			fprintf(stderr, "NVRAM file %s too long\n", fname);
			fclose(fp);
			return -1;
		}

		memcpy(buf + buf_len, s, slen);
		buf_len += slen;
		buf[buf_len++] = 0;
	}

	fclose(fp);

	return buf_len;
}
#endif   /* BWL_FILESYSTEM_SUPPORT */

static int
dhd_vars(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	uint argc;
	char *bufp;
	char *vname;

	UNUSED_PARAMETER(cmd);

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	switch (argc) {
	case 0: /* get */
	{
		if ((ret = dhd_var_getbuf(dhd, "vars", NULL, 0, (void**)&bufp)))
			break;
		while (*bufp) {
			printf("%s\n", bufp);
			bufp += strlen(bufp) + 1;
		}
	}
	break;

#if defined(BWL_FILESYSTEM_SUPPORT)
	case 1: /* set */
	{
		uint nvram_len;
		vname = argv[1];

		bufp = buf;
		strcpy(bufp, "vars");
		bufp += strlen("vars") + 1;

		if ((ret = read_vars(vname, bufp,
		                           DHD_IOCTL_MAXLEN - (strlen("vars") + 3))) < 0) {
			ret = -1;
			break;
		}

		nvram_len = ret;
		bufp += nvram_len;
		*bufp++ = 0;

		ret = dhd_set(dhd, DHD_SET_VAR, buf, bufp - buf);
	}
	break;
#endif   /* BWL_FILESYSTEM_SUPPORT */

	default:
		ret = -1;
		break;
	}

	return ret;
}

#define MEMBLOCK 2048

/* Check that strlen("membytes")+1 + 2*sizeof(int32) + MEMBLOCK <= DHD_IOCTL_MAXLEN */
#if (MEMBLOCK + 17 > DHD_IOCTL_MAXLEN)
#error MEMBLOCK/DHD_IOCTL_MAXLEN sizing
#endif


#if defined(BWL_FILESYSTEM_SUPPORT)
static int
dhd_load_file_bytes(void *dhd, cmd_t *cmd, FILE *fp, int fsize, int start)
{
	int tot_len = 0;
	uint read_len;
	char *bufp;
	uint len;
	uint8 memblock[MEMBLOCK];
	int ret;

	UNUSED_PARAMETER(cmd);

	while (tot_len < fsize) {
		read_len = fsize - tot_len;
		if (read_len >= MEMBLOCK)
			read_len = MEMBLOCK;
		len = fread(memblock, sizeof(uint8), read_len, fp);
		if ((len < read_len) && !feof(fp)) {
			fprintf(stderr, "%s: error reading file\n", __FUNCTION__);
			return -1;

		}

		bufp = buf;
		memset(bufp, 0, DHD_IOCTL_MAXLEN);
		strcpy(bufp, "membytes");
		bufp += strlen("membytes") + 1;
		memcpy(bufp, &start, sizeof(int));
		bufp += sizeof(int);
		memcpy(bufp, &len, sizeof(int));
		bufp += sizeof(int);
		memcpy(bufp, memblock, len);

		ret = dhd_set(dhd, DHD_SET_VAR, &buf[0], (bufp - buf + len));

		if (ret) {
			fprintf(stderr, "%s: error %d on writing %d membytes at 0x%08x\n",
			        __FUNCTION__, ret, len, start);
			return -1;
		}
		start += len;
		tot_len += len;
	}
	return 0;
}
#endif   /* BWL_FILESYSTEM_SUPPORT */

static int
dhd_download(void *dhd, cmd_t *cmd, char **argv)
{
#if !defined(BWL_FILESYSTEM_SUPPORT)
	return (-1);
#else
	bool reset = TRUE;
	bool run = TRUE;
	char *fname = NULL;
	char *vname = NULL;
	uint32 start = 0;
	int ret = 0;
	int fsize;

	FILE *fp = NULL;
	uint32 memsize;
	char *memszargs[] = { "memsize", NULL };

	char *bufp;

	miniopt_t opts;
	int opt_err;
	uint nvram_len;
	struct trx_header trx_hdr;
	bool trx_file = FALSE;

	/* Parse command-line options */
	miniopt_init(&opts, "download", "", TRUE);

	argv++;
	while ((opt_err = miniopt(&opts, argv)) != -1) {
		if (opt_err == 1) {
			fprintf(stderr, "download options error\n");
			ret = -1;
			goto exit;
		}
		argv += opts.consumed;

		if (opts.opt == 'a') {
			if (!opts.good_int) {
				fprintf(stderr, "invalid address %s\n", opts.valstr);
				ret = -1;
				goto exit;
			}
			start = (uint32)opts.uval;
		} else if (opts.positional) {
			if (fname && vname) {
				fprintf(stderr, "extra positional arg, %s\n",
				        opts.valstr);
				ret = -1;
				goto exit;
			}
			if (fname)
				vname = opts.valstr;
			else
				fname = opts.valstr;
		} else if (!opts.opt) {
			if (!strcmp(opts.key, "noreset")) {
				reset = FALSE;
			} else if (!strcmp(opts.key, "norun")) {
				run = FALSE;
			} else {
				fprintf(stderr, "unrecognized option %s\n", opts.valstr);
				ret = -1;
				goto exit;
			}
		} else {
			fprintf(stderr, "unrecognized option %c\n", opts.opt);
			ret = -1;
			goto exit;
		}
	}

	/* validate arguments */
	if (!fname) {
		fprintf(stderr, "filename required\n");
		ret = -1;
		goto exit;
	}


	/* validate file size compared to memory size */
	if ((fsize = file_size(fname)) < 0) {
		ret = -1;
		goto exit;
	}
	/* read the file and push blocks down to memory */
	if ((fp = fopen(fname, "rb")) == NULL) {
		fprintf(stderr, "%s: unable to open %s: %s\n",
		        __FUNCTION__, fname, strerror(errno));
		ret = -1;
		goto exit;
	}
	/* Verify the file is a regular bin file or trx file */
	{
		uint32 tmp_len;
		uint32 trx_hdr_len = sizeof(struct trx_header);
		tmp_len = fread(&trx_hdr, sizeof(uint8), trx_hdr_len, fp);
		if (tmp_len == trx_hdr_len) {
			if (trx_hdr.magic == TRX_MAGIC) {
				fprintf(stderr, "TRX file\n");
				trx_file = TRUE;
				/* trx header file format: image_size, rom_img_size, rom_load_adr */
				fprintf(stderr, "dongle RAM Image size %d\n", trx_hdr.offsets[0]);
				fprintf(stderr, "dongle ROM Image size %d\n", trx_hdr.offsets[1]);
				fprintf(stderr, "dongle ROM Loadaddr 0x%x\n", trx_hdr.offsets[2]);
				fsize = trx_hdr.offsets[0] + trx_hdr.offsets[1];
				fprintf(stderr, "filesize is %d\n", fsize);
			}
			else
				fseek(fp, 0, SEEK_SET);
		}
		else
			fseek(fp, 0, SEEK_SET);
	}

	if ((ret = dhd_var_get(dhd, NULL, memszargs))) {
		fprintf(stderr, "%s: error obtaining memsize\n", __FUNCTION__);
		goto exit;
	}

	memsize = *(uint32*)buf;

	if (memsize && ((uint32)fsize > memsize)) {
		fprintf(stderr, "%s: file %s too large (%d > %d)\n",
		        __FUNCTION__, fname, fsize, memsize);
		ret = -1;
		goto exit;
	}

	/* do the download reset if not suppressed */
	if (reset) {
		if ((ret = dhd_iovar_setint(dhd, "download", TRUE))) {
			fprintf(stderr, "%s: failed to put dongle in download mode\n",
			        __FUNCTION__);
			goto exit;
		}
	}
	if (trx_file)
		fsize = trx_hdr.offsets[0];
	/* Load the ram image */
	if (dhd_load_file_bytes(dhd, cmd, fp, fsize, start)) {
		fprintf(stderr, "%s: error loading the ramimage at addr 0x%x\n",
			__FUNCTION__, start);
			ret = -1;
			goto exit;
		}
	if (trx_file) {
		/* Load the rom library */
		start = trx_hdr.offsets[2];
		fsize = trx_hdr.offsets[1];

		fprintf(stderr, "setting the maxsocram value 0x%x \n", start);
		if (dhd_iovar_setint(dhd, "maxsocram", start)) {
			fprintf(stderr, "%s: setting the maxram size to %d failed\n",
				__FUNCTION__,  start);
			goto exit;
		}

		if (dhd_load_file_bytes(dhd, cmd, fp, fsize, start)) {
			fprintf(stderr, "%s: error loading the rom library at addr 0x%x\n",
				__FUNCTION__,  start);
			goto exit;
		}

	}

	fclose(fp);
	fp = NULL;

	/* download the vars file if specified */
	if (vname) {
		bufp = buf;
		strcpy(bufp, "vars");
		bufp += strlen("vars") + 1;

		if ((ret = read_vars(vname, bufp,
		                           DHD_IOCTL_MAXLEN - (strlen("vars") + 3))) < 0) {
			ret = -1;
			goto exit;
		}

		nvram_len = ret;
		bufp += nvram_len;
		*bufp++ = 0;

		ret = dhd_set(dhd, DHD_SET_VAR, buf, (bufp - buf));
		if (ret) {
			fprintf(stderr, "%s: error %d on delivering vars\n",
			        __FUNCTION__, ret);
			goto exit;
		}
	}

	/* start running the downloaded code if not suppressed */
	if (run) {
		if ((ret = dhd_iovar_setint(dhd, "download", FALSE))) {
			fprintf(stderr, "%s: failed to take dongle out of download mode\n",
			        __FUNCTION__);
			goto exit;
		}
	}

exit:
	if (fp)
		fclose(fp);

	return ret;
#endif /* BWL_FILESYSTEM_SUPPORT */
}

static int
dhd_upload(void *dhd, cmd_t *cmd, char **argv)
{
#if !defined(BWL_FILESYSTEM_SUPPORT)
	return (-1);
#else
	char *fname = NULL;
	uint32 start = 0;
	uint32 size = 0;
	int ret = 0;

	FILE *fp;
	uint32 memsize;
	char *memszargs[] = { "memsize", NULL };

	uint len;

	miniopt_t opts;
	int opt_err;

	UNUSED_PARAMETER(cmd);
	UNUSED_PARAMETER(argv);

	/* Parse command-line options */
	miniopt_init(&opts, "upload", "", TRUE);

	argv++;
	while ((opt_err = miniopt(&opts, argv)) != -1) {
		if (opt_err == 1) {
			fprintf(stderr, "upload options error\n");
			ret = -1;
			goto exit;
		}
		argv += opts.consumed;

		if (opts.opt == 'a') {
			if (!opts.good_int) {
				fprintf(stderr, "invalid address %s\n", opts.valstr);
				ret = -1;
				goto exit;
			}
			start = (uint32)opts.uval;
		} else if (opts.positional) {
			if (!fname) {
				fname = opts.valstr;
			} else if (opts.good_int) {
				size = (uint32)opts.uval;
			} else {
				fprintf(stderr, "upload options error\n");
				ret = -1;
				goto exit;
			}
		} else if (!opts.opt) {
			fprintf(stderr, "unrecognized option %s\n", opts.valstr);
			ret = -1;
			goto exit;
		} else {
			fprintf(stderr, "unrecognized option %c\n", opts.opt);
			ret = -1;
			goto exit;
		}
	}

	/* validate arguments */
	if (!fname) {
		fprintf(stderr, "filename required\n");
		ret = -1;
		goto exit;
	}

	if ((ret = dhd_var_get(dhd, NULL, memszargs))) {
		fprintf(stderr, "%s: error obtaining memsize\n", __FUNCTION__);
		goto exit;
	}
	memsize = *(uint32*)buf;

	if (!memsize)
		memsize = start + size;

	if (start + size > memsize) {
		fprintf(stderr, "%s: %d bytes at 0x%x exceeds ramsize 0x%x\n",
		        __FUNCTION__, size, start, memsize);
		ret = -1;
		goto exit;
	}

	if ((fp = fopen(fname, "wb")) == NULL) {
		fprintf(stderr, "%s: Could not open %s: %s\n",
		        __FUNCTION__, fname, strerror(errno));
		ret = -1;
		goto exit;
	}

	/* default size to full RAM */
	if (!size)
		size = memsize - start;

	/* read memory and write to file */
	while (size) {
		char *ptr;
		int params[2];

		len = MIN(MEMBLOCK, size);

		params[0] = start;
		params[1] = len;
		ret = dhd_var_getbuf(dhd, "membytes", params, 2 * sizeof(int), (void**)&ptr);
		if (ret) {
			fprintf(stderr, "%s: failed reading %d membytes from 0x%08x\n",
			        __FUNCTION__, len, start);
			break;
		}

		if (fwrite(ptr, sizeof(*ptr), len, fp) != len) {
			fprintf(stderr, "%s: error writing to file %s\n", __FUNCTION__, fname);
			ret = -1;
			break;
		}

		start += len;
		size -= len;
	}

	fclose(fp);
exit:
	return ret;
#endif /* BWL_FILESYSTEM_SUPPORT */
}

static int
dhd_logstamp(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	char *endptr = NULL;
	uint argc;
	int valn[2] = {0, 0};

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--; argv++;

	if (argc > 2)
		return USAGE_ERROR;

	if (argc) {
		valn[0] = strtol(argv[0], &endptr, 0);
		if (*endptr != '\0') {
			printf("bad val1: %s\n", argv[0]);
			return USAGE_ERROR;
		}
	}

	if (argc > 1) {
		valn[1] = strtol(argv[1], &endptr, 0);
		if (*endptr != '\0') {
			printf("bad val2: %s\n", argv[1]);
			return USAGE_ERROR;
		}
	}

	ret = dhd_var_setbuf(dhd, cmd->name, valn, argc * sizeof(int));

	return (ret);
}

static int
dhd_sd_reg(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	sdreg_t sdreg;
	char *endptr = NULL;
	uint argc;
	void *ptr = NULL;

	bzero(&sdreg, sizeof(sdreg));

	/* arg count */
	for (argc = 0; argv[argc]; argc++);
	argc--;

	/* hostreg: offset [value]; devreg: func offset [value] */
	if (!strcmp(cmd->name, "sd_hostreg")) {
		argv++;
		if (argc < 1) {
			printf("required args: offset [value]\n");
			return USAGE_ERROR;
		}

	} else if (!strcmp(cmd->name, "sd_devreg")) {
		argv++;
		if (argc < 2) {
			printf("required args: func offset [value]\n");
			return USAGE_ERROR;
		}

		sdreg.func = strtoul(*argv++, &endptr, 0);
		if (*endptr != '\0') {
			printf("Invalid function number\n");
			return USAGE_ERROR;
		}
	} else {
		return USAGE_ERROR;
	}

	sdreg.offset = strtoul(*argv++, &endptr, 0);
	if (*endptr != '\0') {
		printf("Invalid offset value\n");
		return USAGE_ERROR;
	}

	/* third arg: value */
	if (*argv) {
		sdreg.value = strtoul(*argv, &endptr, 0);
		if (*endptr != '\0') {
			printf("Invalid value\n");
			return USAGE_ERROR;
		}
	}

	/* no third arg means get, otherwise set */
	if (!*argv) {
		if ((ret = dhd_var_getbuf(dhd, cmd->name, &sdreg, sizeof(sdreg), &ptr)) >= 0)
			printf("0x%x\n", *(int *)ptr);
	} else {
		ret = dhd_var_setbuf(dhd, cmd->name, &sdreg, sizeof(sdreg));
	}

	return (ret);
}

static dbg_msg_t dhd_msgs[] = {
	{DHD_ERROR_VAL,	"error"},
	{DHD_ERROR_VAL, "err"},
	{DHD_TRACE_VAL, "trace"},
	{DHD_INFO_VAL,	"inform"},
	{DHD_INFO_VAL,	"info"},
	{DHD_INFO_VAL,	"inf"},
	{DHD_DATA_VAL,	"data"},
	{DHD_CTL_VAL,	"ctl"},
	{DHD_TIMER_VAL,	"timer"},
	{DHD_HDRS_VAL,	"hdrs"},
	{DHD_BYTES_VAL,	"bytes"},
	{DHD_INTR_VAL,	"intr"},
	{DHD_LOG_VAL,	"log"},
	{DHD_GLOM_VAL,	"glom"},
	{DHD_EVENT_VAL,	"event"},
	{DHD_BTA_VAL,	"bta"},
	{0,		NULL}
};

static int
dhd_msglevel(void *dhd, cmd_t *cmd, char **argv)
{
	return dhd_do_msglevel(dhd, cmd, argv, dhd_msgs);
}

static int
dhd_do_msglevel(void *dhd, cmd_t *cmd, char **argv, dbg_msg_t *dbg_msg)
{
	int ret, i;
	uint val, last_val = 0, msglevel = 0, msglevel_add = 0, msglevel_del = 0;
	char *endptr = NULL;

	if ((ret = dhd_iovar_getint(dhd, cmd->name, (int*)&msglevel)) < 0)
		return (ret);

	if (!*++argv) {
		printf("0x%x ", msglevel);
		for (i = 0; (val = dbg_msg[i].value); i++) {
			if ((msglevel & val) && (val != last_val))
				printf(" %s", dbg_msg[i].string);
			last_val = val;
		}
		printf("\n");
		return (0);
	}

	while (*argv) {
		char *s = *argv;
		if (*s == '+' || *s == '-')
			s++;
		else
			msglevel_del = ~0;	/* make the whole list absolute */
		val = strtoul(s, &endptr, 0);
		/* not a plain integer if not all the string was parsed by strtoul */
		if (*endptr != '\0') {
			for (i = 0; (val = dbg_msg[i].value); i++)
				if (stricmp(dbg_msg[i].string, s) == 0)
					break;
			if (!val)
				goto usage;
		}
		if (**argv == '-')
			msglevel_del |= val;
		else
			msglevel_add |= val;
		++argv;
	}

	msglevel &= ~msglevel_del;
	msglevel |= msglevel_add;

	return (dhd_iovar_setint(dhd, cmd->name, msglevel));

usage:
	fprintf(stderr, "msg values may be a list of numbers or names from the following set.\n");
	fprintf(stderr, "Use a + or - prefix to make an incremental change.");

	for (i = 0; (val = dbg_msg[i].value); i++) {
		if (val != last_val)
			fprintf(stderr, "\n0x%04x %s", val, dbg_msg[i].string);
		else
			fprintf(stderr, ", %s", dbg_msg[i].string);
		last_val = val;
	}
	fprintf(stderr, "\n");

	return 0;
}

static char *
ver2str(unsigned int vms, unsigned int vls)
{
	static char verstr[100];
	unsigned int maj, year, month, day, build;

	maj = (vms >> 16) & 0xFFFF;
	if (maj > 1000) {
		/* it is probably a date... */
		year = (vms >> 16) & 0xFFFF;
		month = vms & 0xFFFF;
		day = (vls >> 16) & 0xFFFF;
		build = vls & 0xFFFF;
		sprintf(verstr, "%d/%d/%d build %d",
			month, day, year, build);
	} else {
		/* it is a tagged release. */
		sprintf(verstr, "%d.%d RC%d.%d",
			(vms>>16)&0xFFFF, vms&0xFFFF,
			(vls>>16)&0xFFFF, vls&0xFFFF);
	}
	return verstr;
}

static int
dhd_version(void *dhd, cmd_t *cmd, char **argv)
{
	int ret;
	char *ptr;

	UNUSED_PARAMETER(cmd);
	UNUSED_PARAMETER(argv);

	/* Display the application version info */
	printf("%s: %s\n", dhdu_av0,
		ver2str((EPI_MAJOR_VERSION << 16)| EPI_MINOR_VERSION,
		(EPI_RC_NUMBER << 16) | EPI_INCREMENTAL_NUMBER));

	if ((ret = dhd_var_getbuf(dhd, cmd->name, NULL, 0, (void**)&ptr)) < 0)
		return ret;

	/* Display the returned string */
	printf("%s\n", ptr);

	return 0;
}

static int
dhd_var_setint(void *dhd, cmd_t *cmd, char **argv)
{
	int32 val;
	int len;
	char *varname;
	char *endptr = NULL;
	char *p;

	if (cmd->set == -1) {
		printf("set not defined for %s\n", cmd->name);
		return COMMAND_ERROR;
	}

	if (!*argv) {
		printf("set: missing arguments\n");
		return USAGE_ERROR;
	}

	varname = *argv++;

	if (!*argv) {
		printf("set: missing value argument for set of \"%s\"\n", varname);
		return USAGE_ERROR;
	}

	val = strtol(*argv, &endptr, 0);
	if (*endptr != '\0') {
		/* not all the value string was parsed by strtol */
		printf("set: error parsing value \"%s\" as an integer for set of \"%s\"\n",
			*argv, varname);
		return USAGE_ERROR;
	}

	strcpy(buf, varname);
	p = buf;
	while (*p != '\0') {
		*p = tolower(*p);
		p++;
	}

	/* skip the NUL */
	p++;

	memcpy(p, &val, sizeof(uint));
	len = (p - buf) +  sizeof(uint);

	return (dhd_set(dhd, DHD_SET_VAR, &buf[0], len));
}

static int
dhd_var_get(void *dhd, cmd_t *cmd, char **argv)
{
	char *varname;
	char *p;

	UNUSED_PARAMETER(cmd);

	if (!*argv) {
		printf("get: missing arguments\n");
		return USAGE_ERROR;
	}

	varname = *argv++;

	if (*argv) {
		printf("get: error, extra arg \"%s\"\n", *argv);
		return USAGE_ERROR;
	}

	strcpy(buf, varname);
	p = buf;
	while (*p != '\0') {
		*p = tolower(*p);
		p++;
	}
	return (dhd_get(dhd, DHD_GET_VAR, &buf[0], DHD_IOCTL_MAXLEN));
}

static int
dhd_var_getint(void *dhd, cmd_t *cmd, char **argv)
{
	int err;
	int32 val;

	if (cmd->get == -1) {
		printf("get not defined for %s\n", cmd->name);
		return COMMAND_ERROR;
	}

	if ((err = dhd_var_get(dhd, cmd, argv)))
		return (err);

	val = *(int32*)buf;

	if (val < 10)
		printf("%d\n", val);
	else
		printf("%d (0x%x)\n", val, val);

	return (0);
}

static int
dhd_var_getandprintstr(void *dhd, cmd_t *cmd, char **argv)
{
	int err;

	if ((err = dhd_var_get(dhd, cmd, argv)))
		return (err);

	printf("%s\n", buf);
	return (0);
}


void
dhd_printlasterror(void *dhd)
{
	char *cmd[2] = {"bcmerrorstr"};

	if (dhd_var_get(dhd, NULL, cmd) != 0) {
		fprintf(stderr, "%s: \nError getting the last error\n", dhdu_av0);
	} else {
		fprintf(stderr, "%s: %s\n", dhdu_av0, buf);
	}
}

static int
dhd_varint(void *dhd, cmd_t *cmd, char *argv[])
{
	if (argv[1])
		return (dhd_var_setint(dhd, cmd, argv));
	else
		return (dhd_var_getint(dhd, cmd, argv));
}

static int
dhd_var_getbuf(void *dhd, char *iovar, void *param, int param_len, void **bufptr)
{
	int len;

	memset(buf, 0, DHD_IOCTL_MAXLEN);
	strcpy(buf, iovar);

	/* include the NUL */
	len = strlen(iovar) + 1;

	if (param_len)
		memcpy(&buf[len], param, param_len);

	*bufptr = buf;

	return dhd_get(dhd, DHD_GET_VAR, &buf[0], DHD_IOCTL_MAXLEN);
}

static int
dhd_var_setbuf(void *dhd, char *iovar, void *param, int param_len)
{
	int len;

	memset(buf, 0, DHD_IOCTL_MAXLEN);
	strcpy(buf, iovar);

	/* include the NUL */
	len = strlen(iovar) + 1;

	if (param_len)
		memcpy(&buf[len], param, param_len);

	len += param_len;
	return dhd_set(dhd, DHD_SET_VAR, &buf[0], len);
}

static int
dhd_var_void(void *dhd, cmd_t *cmd, char **argv)
{
	UNUSED_PARAMETER(argv);

	if (cmd->set < 0)
		return USAGE_ERROR;

	return dhd_var_setbuf(dhd, cmd->name, NULL, 0);
}

/*
 * format an iovar buffer
 */
static uint
dhd_iovar_mkbuf(char *name, char *data, uint datalen, char *buf, uint buflen, int *perr)
{
	uint len;

	len = strlen(name) + 1;

	/* check for overflow */
	if ((len + datalen) > buflen) {
		*perr = BCME_BUFTOOSHORT;
		return 0;
	}

	strcpy(buf, name);

	/* append data onto the end of the name string */
	if (datalen > 0)
		memcpy(&buf[len], data, datalen);

	len += datalen;

	*perr = 0;
	return len;
}

static int
dhd_iovar_getint(void *dhd, char *name, int *var)
{
	char ibuf[DHD_IOCTL_SMLEN];
	int error;

	dhd_iovar_mkbuf(name, NULL, 0, ibuf, sizeof(ibuf), &error);
	if (error)
		return error;

	if ((error = dhd_get(dhd, DHD_GET_VAR, &ibuf, sizeof(ibuf))) < 0)
		return error;

	memcpy(var, ibuf, sizeof(int));

	return 0;
}

static int
dhd_iovar_setint(void *dhd, char *name, int var)
{
	int len;
	char ibuf[DHD_IOCTL_SMLEN];
	int error;

	len = dhd_iovar_mkbuf(name, (char *)&var, sizeof(var), ibuf, sizeof(ibuf), &error);
	if (error)
		return error;

	if ((error = dhd_set(dhd, DHD_SET_VAR, &ibuf, len)) < 0)
		return error;

	return 0;
}

static int
dhd_varstr(void *dhd, cmd_t *cmd, char **argv)
{
	int error;
	char *str;

	if (!*++argv) {
		void *ptr;
		if ((error = dhd_var_getbuf(dhd, cmd->name, NULL, 0, &ptr)) < 0)
			return (error);

		str = (char *)ptr;
		printf("%s\n", str);
		return (0);
	} else {
		str = *argv;
		/* iovar buffer length includes NUL */
		return dhd_var_setbuf(dhd, cmd->name, str, strlen(str) + 1);
	}
}