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bcmsdh_sdmmc.c
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bcmsdh_sdmmc.c
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/*
* BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel
*
* Copyright (C) 1999-2014, 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: bcmsdh_sdmmc.c 457662 2014-02-24 15:07:28Z $
*/
#include <typedefs.h>
#include <bcmdevs.h>
#include <bcmendian.h>
#include <bcmutils.h>
#include <osl.h>
#include <sdio.h> /* SDIO Device and Protocol Specs */
#include <sdioh.h> /* Standard SDIO Host Controller Specification */
#include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */
#include <sdiovar.h> /* ioctl/iovars */
#include <linux/mmc/core.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/sdio_ids.h>
#include <dngl_stats.h>
#include <dhd.h>
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) && defined(CONFIG_PM_SLEEP)
#include <linux/suspend.h>
extern volatile bool dhd_mmc_suspend;
#endif
#include "bcmsdh_sdmmc.h"
#ifndef BCMSDH_MODULE
extern int sdio_function_init(void);
extern void sdio_function_cleanup(void);
#endif /* BCMSDH_MODULE */
#if !defined(OOB_INTR_ONLY)
static void IRQHandler(struct sdio_func *func);
static void IRQHandlerF2(struct sdio_func *func);
#endif /* !defined(OOB_INTR_ONLY) */
static int sdioh_sdmmc_get_cisaddr(sdioh_info_t *sd, uint32 regaddr);
extern int sdio_reset_comm(struct mmc_card *card);
#define DEFAULT_SDIO_F2_BLKSIZE 512
#ifndef CUSTOM_SDIO_F2_BLKSIZE
#define CUSTOM_SDIO_F2_BLKSIZE DEFAULT_SDIO_F2_BLKSIZE
#endif
#define MAX_IO_RW_EXTENDED_BLK 511
uint sd_sdmode = SDIOH_MODE_SD4; /* Use SD4 mode by default */
uint sd_f2_blocksize = CUSTOM_SDIO_F2_BLKSIZE;
uint sd_divisor = 2; /* Default 48MHz/2 = 24MHz */
uint sd_power = 1; /* Default to SD Slot powered ON */
uint sd_clock = 1; /* Default to SD Clock turned ON */
uint sd_hiok = FALSE; /* Don't use hi-speed mode by default */
uint sd_msglevel = 0x01;
uint sd_use_dma = TRUE;
#ifndef CUSTOM_RXCHAIN
#define CUSTOM_RXCHAIN 0
#endif
DHD_PM_RESUME_WAIT_INIT(sdioh_request_byte_wait);
DHD_PM_RESUME_WAIT_INIT(sdioh_request_word_wait);
DHD_PM_RESUME_WAIT_INIT(sdioh_request_packet_wait);
DHD_PM_RESUME_WAIT_INIT(sdioh_request_buffer_wait);
#define DMA_ALIGN_MASK 0x03
#define MMC_SDIO_ABORT_RETRY_LIMIT 5
int sdioh_sdmmc_card_regread(sdioh_info_t *sd, int func, uint32 regaddr, int regsize, uint32 *data);
static int
sdioh_sdmmc_card_enablefuncs(sdioh_info_t *sd)
{
int err_ret;
uint32 fbraddr;
uint8 func;
sd_trace(("%s\n", __FUNCTION__));
/* Get the Card's common CIS address */
sd->com_cis_ptr = sdioh_sdmmc_get_cisaddr(sd, SDIOD_CCCR_CISPTR_0);
sd->func_cis_ptr[0] = sd->com_cis_ptr;
sd_info(("%s: Card's Common CIS Ptr = 0x%x\n", __FUNCTION__, sd->com_cis_ptr));
/* Get the Card's function CIS (for each function) */
for (fbraddr = SDIOD_FBR_STARTADDR, func = 1;
func <= sd->num_funcs; func++, fbraddr += SDIOD_FBR_SIZE) {
sd->func_cis_ptr[func] = sdioh_sdmmc_get_cisaddr(sd, SDIOD_FBR_CISPTR_0 + fbraddr);
sd_info(("%s: Function %d CIS Ptr = 0x%x\n",
__FUNCTION__, func, sd->func_cis_ptr[func]));
}
sd->func_cis_ptr[0] = sd->com_cis_ptr;
sd_info(("%s: Card's Common CIS Ptr = 0x%x\n", __FUNCTION__, sd->com_cis_ptr));
/* Enable Function 1 */
if (sd->func[1]) {
sdio_claim_host(sd->func[1]);
err_ret = sdio_enable_func(sd->func[1]);
sdio_release_host(sd->func[1]);
if (err_ret) {
sd_err(("bcmsdh_sdmmc: Failed to enable F1 Err: 0x%08x", err_ret));
}
}
else
sd_err(("%s:gInstance->func[1] is null\n", __FUNCTION__));
return FALSE;
}
/*
* Public entry points & extern's
*/
extern sdioh_info_t *
sdioh_attach(osl_t *osh, struct sdio_func *func)
{
sdioh_info_t *sd = NULL;
int err_ret;
sd_trace(("%s\n", __FUNCTION__));
if (func == NULL) {
sd_err(("%s: sdio function device is NULL\n", __FUNCTION__));
return NULL;
}
if ((sd = (sdioh_info_t *)MALLOC(osh, sizeof(sdioh_info_t))) == NULL) {
sd_err(("sdioh_attach: out of memory, malloced %d bytes\n", MALLOCED(osh)));
return NULL;
}
bzero((char *)sd, sizeof(sdioh_info_t));
/* Initialize the scatter gather table entries */
sg_init_table(&sd->sg_list[0], SDIOH_SDMMC_MAX_SG_ENTRIES);
sd->osh = osh;
sd->fake_func0.num = 0;
sd->fake_func0.card = func->card;
sd->func[0] = &sd->fake_func0;
sd->func[1] = func->card->sdio_func[0];
sd->func[2] = func->card->sdio_func[1];
sd->num_funcs = 2;
sd->sd_blockmode = TRUE;
sd->use_client_ints = TRUE;
sd->client_block_size[0] = 64;
sd->use_rxchain = CUSTOM_RXCHAIN;
if (sd->func[1] == NULL || sd->func[2] == NULL) {
sd_err(("%s: func 1 or 2 is null \n", __FUNCTION__));
goto fail;
}
sdio_set_drvdata(sd->func[1], sd);
sdio_claim_host(sd->func[1]);
sd->client_block_size[1] = 64;
err_ret = sdio_set_block_size(sd->func[1], 64);
sdio_release_host(sd->func[1]);
if (err_ret) {
sd_err(("bcmsdh_sdmmc: Failed to set F1 blocksize(%d)\n", err_ret));
goto fail;
}
sdio_claim_host(sd->func[2]);
sd->client_block_size[2] = sd_f2_blocksize;
err_ret = sdio_set_block_size(sd->func[2], sd_f2_blocksize);
sdio_release_host(sd->func[2]);
if (err_ret) {
sd_err(("bcmsdh_sdmmc: Failed to set F2 blocksize to %d(%d)\n",
sd_f2_blocksize, err_ret));
goto fail;
}
sdioh_sdmmc_card_enablefuncs(sd);
sd_trace(("%s: Done\n", __FUNCTION__));
return sd;
fail:
MFREE(sd->osh, sd, sizeof(sdioh_info_t));
return NULL;
}
extern SDIOH_API_RC
sdioh_detach(osl_t *osh, sdioh_info_t *sd)
{
sd_trace(("%s\n", __FUNCTION__));
if (sd) {
/* Disable Function 2 */
if (sd->func[2]) {
sdio_claim_host(sd->func[2]);
sdio_disable_func(sd->func[2]);
sdio_release_host(sd->func[2]);
}
/* Disable Function 1 */
if (sd->func[1]) {
sdio_claim_host(sd->func[1]);
sdio_disable_func(sd->func[1]);
sdio_release_host(sd->func[1]);
}
sd->func[1] = NULL;
sd->func[2] = NULL;
MFREE(sd->osh, sd, sizeof(sdioh_info_t));
}
return SDIOH_API_RC_SUCCESS;
}
#if defined(OOB_INTR_ONLY) && defined(HW_OOB)
extern SDIOH_API_RC
sdioh_enable_func_intr(sdioh_info_t *sd)
{
uint8 reg;
int err;
if (sd->func[0] == NULL) {
sd_err(("%s: function 0 pointer is NULL\n", __FUNCTION__));
return SDIOH_API_RC_FAIL;
}
sdio_claim_host(sd->func[0]);
reg = sdio_readb(sd->func[0], SDIOD_CCCR_INTEN, &err);
if (err) {
sd_err(("%s: error for read SDIO_CCCR_IENx : 0x%x\n", __FUNCTION__, err));
sdio_release_host(sd->func[0]);
return SDIOH_API_RC_FAIL;
}
/* Enable F1 and F2 interrupts, clear master enable */
reg &= ~INTR_CTL_MASTER_EN;
reg |= (INTR_CTL_FUNC1_EN | INTR_CTL_FUNC2_EN);
sdio_writeb(sd->func[0], reg, SDIOD_CCCR_INTEN, &err);
sdio_release_host(sd->func[0]);
if (err) {
sd_err(("%s: error for write SDIO_CCCR_IENx : 0x%x\n", __FUNCTION__, err));
return SDIOH_API_RC_FAIL;
}
return SDIOH_API_RC_SUCCESS;
}
extern SDIOH_API_RC
sdioh_disable_func_intr(sdioh_info_t *sd)
{
uint8 reg;
int err;
if (sd->func[0] == NULL) {
sd_err(("%s: function 0 pointer is NULL\n", __FUNCTION__));
return SDIOH_API_RC_FAIL;
}
sdio_claim_host(sd->func[0]);
reg = sdio_readb(sd->func[0], SDIOD_CCCR_INTEN, &err);
if (err) {
sd_err(("%s: error for read SDIO_CCCR_IENx : 0x%x\n", __FUNCTION__, err));
sdio_release_host(sd->func[0]);
return SDIOH_API_RC_FAIL;
}
reg &= ~(INTR_CTL_FUNC1_EN | INTR_CTL_FUNC2_EN);
/* Disable master interrupt with the last function interrupt */
if (!(reg & 0xFE))
reg = 0;
sdio_writeb(sd->func[0], reg, SDIOD_CCCR_INTEN, &err);
sdio_release_host(sd->func[0]);
if (err) {
sd_err(("%s: error for write SDIO_CCCR_IENx : 0x%x\n", __FUNCTION__, err));
return SDIOH_API_RC_FAIL;
}
return SDIOH_API_RC_SUCCESS;
}
#endif /* defined(OOB_INTR_ONLY) && defined(HW_OOB) */
/* Configure callback to client when we recieve client interrupt */
extern SDIOH_API_RC
sdioh_interrupt_register(sdioh_info_t *sd, sdioh_cb_fn_t fn, void *argh)
{
sd_trace(("%s: Entering\n", __FUNCTION__));
if (fn == NULL) {
sd_err(("%s: interrupt handler is NULL, not registering\n", __FUNCTION__));
return SDIOH_API_RC_FAIL;
}
#if !defined(OOB_INTR_ONLY)
sd->intr_handler = fn;
sd->intr_handler_arg = argh;
sd->intr_handler_valid = TRUE;
/* register and unmask irq */
if (sd->func[2]) {
sdio_claim_host(sd->func[2]);
sdio_claim_irq(sd->func[2], IRQHandlerF2);
sdio_release_host(sd->func[2]);
}
if (sd->func[1]) {
sdio_claim_host(sd->func[1]);
sdio_claim_irq(sd->func[1], IRQHandler);
sdio_release_host(sd->func[1]);
}
#elif defined(HW_OOB)
sdioh_enable_func_intr(sd);
#endif /* !defined(OOB_INTR_ONLY) */
return SDIOH_API_RC_SUCCESS;
}
extern SDIOH_API_RC
sdioh_interrupt_deregister(sdioh_info_t *sd)
{
sd_trace(("%s: Entering\n", __FUNCTION__));
#if !defined(OOB_INTR_ONLY)
if (sd->func[1]) {
/* register and unmask irq */
sdio_claim_host(sd->func[1]);
sdio_release_irq(sd->func[1]);
sdio_release_host(sd->func[1]);
}
if (sd->func[2]) {
/* Claim host controller F2 */
sdio_claim_host(sd->func[2]);
sdio_release_irq(sd->func[2]);
/* Release host controller F2 */
sdio_release_host(sd->func[2]);
}
sd->intr_handler_valid = FALSE;
sd->intr_handler = NULL;
sd->intr_handler_arg = NULL;
#elif defined(HW_OOB)
sdioh_disable_func_intr(sd);
#endif /* !defined(OOB_INTR_ONLY) */
return SDIOH_API_RC_SUCCESS;
}
extern SDIOH_API_RC
sdioh_interrupt_query(sdioh_info_t *sd, bool *onoff)
{
sd_trace(("%s: Entering\n", __FUNCTION__));
*onoff = sd->client_intr_enabled;
return SDIOH_API_RC_SUCCESS;
}
#if defined(DHD_DEBUG)
extern bool
sdioh_interrupt_pending(sdioh_info_t *sd)
{
return (0);
}
#endif
uint
sdioh_query_iofnum(sdioh_info_t *sd)
{
return sd->num_funcs;
}
/* IOVar table */
enum {
IOV_MSGLEVEL = 1,
IOV_BLOCKMODE,
IOV_BLOCKSIZE,
IOV_DMA,
IOV_USEINTS,
IOV_NUMINTS,
IOV_NUMLOCALINTS,
IOV_HOSTREG,
IOV_DEVREG,
IOV_DIVISOR,
IOV_SDMODE,
IOV_HISPEED,
IOV_HCIREGS,
IOV_POWER,
IOV_CLOCK,
IOV_RXCHAIN
};
const bcm_iovar_t sdioh_iovars[] = {
{"sd_msglevel", IOV_MSGLEVEL, 0, IOVT_UINT32, 0 },
{"sd_blockmode", IOV_BLOCKMODE, 0, IOVT_BOOL, 0 },
{"sd_blocksize", IOV_BLOCKSIZE, 0, IOVT_UINT32, 0 }, /* ((fn << 16) | size) */
{"sd_dma", IOV_DMA, 0, IOVT_BOOL, 0 },
{"sd_ints", IOV_USEINTS, 0, IOVT_BOOL, 0 },
{"sd_numints", IOV_NUMINTS, 0, IOVT_UINT32, 0 },
{"sd_numlocalints", IOV_NUMLOCALINTS, 0, IOVT_UINT32, 0 },
{"sd_hostreg", IOV_HOSTREG, 0, IOVT_BUFFER, sizeof(sdreg_t) },
{"sd_devreg", IOV_DEVREG, 0, IOVT_BUFFER, sizeof(sdreg_t) },
{"sd_divisor", IOV_DIVISOR, 0, IOVT_UINT32, 0 },
{"sd_power", IOV_POWER, 0, IOVT_UINT32, 0 },
{"sd_clock", IOV_CLOCK, 0, IOVT_UINT32, 0 },
{"sd_mode", IOV_SDMODE, 0, IOVT_UINT32, 100},
{"sd_highspeed", IOV_HISPEED, 0, IOVT_UINT32, 0 },
{"sd_rxchain", IOV_RXCHAIN, 0, IOVT_BOOL, 0 },
{NULL, 0, 0, 0, 0 }
};
int
sdioh_iovar_op(sdioh_info_t *si, const char *name,
void *params, int plen, void *arg, int len, bool set)
{
const bcm_iovar_t *vi = NULL;
int bcmerror = 0;
int val_size;
int32 int_val = 0;
bool bool_val;
uint32 actionid;
ASSERT(name);
ASSERT(len >= 0);
/* Get must have return space; Set does not take qualifiers */
ASSERT(set || (arg && len));
ASSERT(!set || (!params && !plen));
sd_trace(("%s: Enter (%s %s)\n", __FUNCTION__, (set ? "set" : "get"), name));
if ((vi = bcm_iovar_lookup(sdioh_iovars, name)) == NULL) {
bcmerror = BCME_UNSUPPORTED;
goto exit;
}
if ((bcmerror = bcm_iovar_lencheck(vi, arg, len, set)) != 0)
goto exit;
/* Set up params so get and set can share the convenience variables */
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
val_size = sizeof(int);
if (plen >= (int)sizeof(int_val))
bcopy(params, &int_val, sizeof(int_val));
bool_val = (int_val != 0) ? TRUE : FALSE;
BCM_REFERENCE(bool_val);
actionid = set ? IOV_SVAL(vi->varid) : IOV_GVAL(vi->varid);
switch (actionid) {
case IOV_GVAL(IOV_MSGLEVEL):
int_val = (int32)sd_msglevel;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_MSGLEVEL):
sd_msglevel = int_val;
break;
case IOV_GVAL(IOV_BLOCKMODE):
int_val = (int32)si->sd_blockmode;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_BLOCKMODE):
si->sd_blockmode = (bool)int_val;
/* Haven't figured out how to make non-block mode with DMA */
break;
case IOV_GVAL(IOV_BLOCKSIZE):
if ((uint32)int_val > si->num_funcs) {
bcmerror = BCME_BADARG;
break;
}
int_val = (int32)si->client_block_size[int_val];
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_BLOCKSIZE):
{
uint func = ((uint32)int_val >> 16);
uint blksize = (uint16)int_val;
uint maxsize;
if (func > si->num_funcs) {
bcmerror = BCME_BADARG;
break;
}
switch (func) {
case 0: maxsize = 32; break;
case 1: maxsize = BLOCK_SIZE_4318; break;
case 2: maxsize = BLOCK_SIZE_4328; break;
default: maxsize = 0;
}
if (blksize > maxsize) {
bcmerror = BCME_BADARG;
break;
}
if (!blksize) {
blksize = maxsize;
}
/* Now set it */
si->client_block_size[func] = blksize;
break;
}
case IOV_GVAL(IOV_RXCHAIN):
int_val = (int32)si->use_rxchain;
bcopy(&int_val, arg, val_size);
break;
case IOV_GVAL(IOV_DMA):
int_val = (int32)si->sd_use_dma;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_DMA):
si->sd_use_dma = (bool)int_val;
break;
case IOV_GVAL(IOV_USEINTS):
int_val = (int32)si->use_client_ints;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_USEINTS):
si->use_client_ints = (bool)int_val;
if (si->use_client_ints)
si->intmask |= CLIENT_INTR;
else
si->intmask &= ~CLIENT_INTR;
break;
case IOV_GVAL(IOV_DIVISOR):
int_val = (uint32)sd_divisor;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_DIVISOR):
sd_divisor = int_val;
break;
case IOV_GVAL(IOV_POWER):
int_val = (uint32)sd_power;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_POWER):
sd_power = int_val;
break;
case IOV_GVAL(IOV_CLOCK):
int_val = (uint32)sd_clock;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_CLOCK):
sd_clock = int_val;
break;
case IOV_GVAL(IOV_SDMODE):
int_val = (uint32)sd_sdmode;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_SDMODE):
sd_sdmode = int_val;
break;
case IOV_GVAL(IOV_HISPEED):
int_val = (uint32)sd_hiok;
bcopy(&int_val, arg, val_size);
break;
case IOV_SVAL(IOV_HISPEED):
sd_hiok = int_val;
break;
case IOV_GVAL(IOV_NUMINTS):
int_val = (int32)si->intrcount;
bcopy(&int_val, arg, val_size);
break;
case IOV_GVAL(IOV_NUMLOCALINTS):
int_val = (int32)0;
bcopy(&int_val, arg, val_size);
break;
case IOV_GVAL(IOV_HOSTREG):
{
sdreg_t *sd_ptr = (sdreg_t *)params;
if (sd_ptr->offset < SD_SysAddr || sd_ptr->offset > SD_MaxCurCap) {
sd_err(("%s: bad offset 0x%x\n", __FUNCTION__, sd_ptr->offset));
bcmerror = BCME_BADARG;
break;
}
sd_trace(("%s: rreg%d at offset %d\n", __FUNCTION__,
(sd_ptr->offset & 1) ? 8 : ((sd_ptr->offset & 2) ? 16 : 32),
sd_ptr->offset));
if (sd_ptr->offset & 1)
int_val = 8; /* sdioh_sdmmc_rreg8(si, sd_ptr->offset); */
else if (sd_ptr->offset & 2)
int_val = 16; /* sdioh_sdmmc_rreg16(si, sd_ptr->offset); */
else
int_val = 32; /* sdioh_sdmmc_rreg(si, sd_ptr->offset); */
bcopy(&int_val, arg, sizeof(int_val));
break;
}
case IOV_SVAL(IOV_HOSTREG):
{
sdreg_t *sd_ptr = (sdreg_t *)params;
if (sd_ptr->offset < SD_SysAddr || sd_ptr->offset > SD_MaxCurCap) {
sd_err(("%s: bad offset 0x%x\n", __FUNCTION__, sd_ptr->offset));
bcmerror = BCME_BADARG;
break;
}
sd_trace(("%s: wreg%d value 0x%08x at offset %d\n", __FUNCTION__, sd_ptr->value,
(sd_ptr->offset & 1) ? 8 : ((sd_ptr->offset & 2) ? 16 : 32),
sd_ptr->offset));
break;
}
case IOV_GVAL(IOV_DEVREG):
{
sdreg_t *sd_ptr = (sdreg_t *)params;
uint8 data = 0;
if (sdioh_cfg_read(si, sd_ptr->func, sd_ptr->offset, &data)) {
bcmerror = BCME_SDIO_ERROR;
break;
}
int_val = (int)data;
bcopy(&int_val, arg, sizeof(int_val));
break;
}
case IOV_SVAL(IOV_DEVREG):
{
sdreg_t *sd_ptr = (sdreg_t *)params;
uint8 data = (uint8)sd_ptr->value;
if (sdioh_cfg_write(si, sd_ptr->func, sd_ptr->offset, &data)) {
bcmerror = BCME_SDIO_ERROR;
break;
}
break;
}
default:
bcmerror = BCME_UNSUPPORTED;
break;
}
exit:
return bcmerror;
}
#if defined(OOB_INTR_ONLY) && defined(HW_OOB)
SDIOH_API_RC
sdioh_enable_hw_oob_intr(sdioh_info_t *sd, bool enable)
{
SDIOH_API_RC status;
uint8 data;
if (enable)
data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE | SDIO_SEPINT_ACT_HI;
else
data = SDIO_SEPINT_ACT_HI; /* disable hw oob interrupt */
status = sdioh_request_byte(sd, SDIOH_WRITE, 0, SDIOD_CCCR_BRCM_SEPINT, &data);
return status;
}
#endif /* defined(OOB_INTR_ONLY) && defined(HW_OOB) */
extern SDIOH_API_RC
sdioh_cfg_read(sdioh_info_t *sd, uint fnc_num, uint32 addr, uint8 *data)
{
SDIOH_API_RC status;
/* No lock needed since sdioh_request_byte does locking */
status = sdioh_request_byte(sd, SDIOH_READ, fnc_num, addr, data);
return status;
}
extern SDIOH_API_RC
sdioh_cfg_write(sdioh_info_t *sd, uint fnc_num, uint32 addr, uint8 *data)
{
/* No lock needed since sdioh_request_byte does locking */
SDIOH_API_RC status;
status = sdioh_request_byte(sd, SDIOH_WRITE, fnc_num, addr, data);
return status;
}
static int
sdioh_sdmmc_get_cisaddr(sdioh_info_t *sd, uint32 regaddr)
{
/* read 24 bits and return valid 17 bit addr */
int i;
uint32 scratch, regdata;
uint8 *ptr = (uint8 *)&scratch;
for (i = 0; i < 3; i++) {
if ((sdioh_sdmmc_card_regread (sd, 0, regaddr, 1, ®data)) != SUCCESS)
sd_err(("%s: Can't read!\n", __FUNCTION__));
*ptr++ = (uint8) regdata;
regaddr++;
}
/* Only the lower 17-bits are valid */
scratch = ltoh32(scratch);
scratch &= 0x0001FFFF;
return (scratch);
}
extern SDIOH_API_RC
sdioh_cis_read(sdioh_info_t *sd, uint func, uint8 *cisd, uint32 length)
{
uint32 count;
int offset;
uint32 foo;
uint8 *cis = cisd;
sd_trace(("%s: Func = %d\n", __FUNCTION__, func));
if (!sd->func_cis_ptr[func]) {
bzero(cis, length);
sd_err(("%s: no func_cis_ptr[%d]\n", __FUNCTION__, func));
return SDIOH_API_RC_FAIL;
}
sd_err(("%s: func_cis_ptr[%d]=0x%04x\n", __FUNCTION__, func, sd->func_cis_ptr[func]));
for (count = 0; count < length; count++) {
offset = sd->func_cis_ptr[func] + count;
if (sdioh_sdmmc_card_regread (sd, 0, offset, 1, &foo) < 0) {
sd_err(("%s: regread failed: Can't read CIS\n", __FUNCTION__));
return SDIOH_API_RC_FAIL;
}
*cis = (uint8)(foo & 0xff);
cis++;
}
return SDIOH_API_RC_SUCCESS;
}
extern SDIOH_API_RC
sdioh_request_byte(sdioh_info_t *sd, uint rw, uint func, uint regaddr, uint8 *byte)
{
int err_ret = 0;
#if defined(MMC_SDIO_ABORT)
int sdio_abort_retry = MMC_SDIO_ABORT_RETRY_LIMIT;
#endif
sd_info(("%s: rw=%d, func=%d, addr=0x%05x\n", __FUNCTION__, rw, func, regaddr));
DHD_PM_RESUME_WAIT(sdioh_request_byte_wait);
DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL);
if(rw) { /* CMD52 Write */
if (func == 0) {
/* Can only directly write to some F0 registers. Handle F2 enable
* as a special case.
*/
if (regaddr == SDIOD_CCCR_IOEN) {
if (sd->func[2]) {
sdio_claim_host(sd->func[2]);
if (*byte & SDIO_FUNC_ENABLE_2) {
/* Enable Function 2 */
err_ret = sdio_enable_func(sd->func[2]);
if (err_ret) {
sd_err(("bcmsdh_sdmmc: enable F2 failed:%d",
err_ret));
}
} else {
/* Disable Function 2 */
err_ret = sdio_disable_func(sd->func[2]);
if (err_ret) {
sd_err(("bcmsdh_sdmmc: Disab F2 failed:%d",
err_ret));
}
}
sdio_release_host(sd->func[2]);
}
}
#if defined(MMC_SDIO_ABORT)
/* to allow abort command through F1 */
else if (regaddr == SDIOD_CCCR_IOABORT) {
while (sdio_abort_retry--) {
if (sd->func[func]) {
sdio_claim_host(sd->func[func]);
/*
* this sdio_f0_writeb() can be replaced with
* another api depending upon MMC driver change.
* As of this time, this is temporaray one
*/
sdio_writeb(sd->func[func],
*byte, regaddr, &err_ret);
sdio_release_host(sd->func[func]);
}
if (!err_ret)
break;
}
}
#endif /* MMC_SDIO_ABORT */
else if (regaddr < 0xF0) {
sd_err(("bcmsdh_sdmmc: F0 Wr:0x%02x: write disallowed\n", regaddr));
} else {
/* Claim host controller, perform F0 write, and release */
if (sd->func[func]) {
sdio_claim_host(sd->func[func]);
sdio_f0_writeb(sd->func[func],
*byte, regaddr, &err_ret);
sdio_release_host(sd->func[func]);
}
}
} else {
/* Claim host controller, perform Fn write, and release */
if (sd->func[func]) {
sdio_claim_host(sd->func[func]);
sdio_writeb(sd->func[func], *byte, regaddr, &err_ret);
sdio_release_host(sd->func[func]);
}
}
} else { /* CMD52 Read */
/* Claim host controller, perform Fn read, and release */
if (sd->func[func]) {
sdio_claim_host(sd->func[func]);
if (func == 0) {
*byte = sdio_f0_readb(sd->func[func], regaddr, &err_ret);
} else {
*byte = sdio_readb(sd->func[func], regaddr, &err_ret);
}
sdio_release_host(sd->func[func]);
}
}
if (err_ret) {
if ((regaddr == 0x1001F) && ((err_ret == -ETIMEDOUT) || (err_ret == -EILSEQ))) {
} else {
sd_err(("bcmsdh_sdmmc: Failed to %s byte F%d:@0x%05x=%02x, Err: %d\n",
rw ? "Write" : "Read", func, regaddr, *byte, err_ret));
}
}
return ((err_ret == 0) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL);
}
extern SDIOH_API_RC
sdioh_request_word(sdioh_info_t *sd, uint cmd_type, uint rw, uint func, uint addr,
uint32 *word, uint nbytes)
{
int err_ret = SDIOH_API_RC_FAIL;
#if defined(MMC_SDIO_ABORT)
int sdio_abort_retry = MMC_SDIO_ABORT_RETRY_LIMIT;
#endif
if (func == 0) {
sd_err(("%s: Only CMD52 allowed to F0.\n", __FUNCTION__));
return SDIOH_API_RC_FAIL;
}
sd_info(("%s: cmd_type=%d, rw=%d, func=%d, addr=0x%05x, nbytes=%d\n",
__FUNCTION__, cmd_type, rw, func, addr, nbytes));
DHD_PM_RESUME_WAIT(sdioh_request_word_wait);
DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL);
/* Claim host controller */
sdio_claim_host(sd->func[func]);
if(rw) { /* CMD52 Write */
if (nbytes == 4) {
sdio_writel(sd->func[func], *word, addr, &err_ret);
} else if (nbytes == 2) {
sdio_writew(sd->func[func], (*word & 0xFFFF), addr, &err_ret);
} else {
sd_err(("%s: Invalid nbytes: %d\n", __FUNCTION__, nbytes));
}
} else { /* CMD52 Read */
if (nbytes == 4) {
*word = sdio_readl(sd->func[func], addr, &err_ret);
} else if (nbytes == 2) {
*word = sdio_readw(sd->func[func], addr, &err_ret) & 0xFFFF;
} else {
sd_err(("%s: Invalid nbytes: %d\n", __FUNCTION__, nbytes));
}
}
/* Release host controller */
sdio_release_host(sd->func[func]);
if (err_ret) {
#if defined(MMC_SDIO_ABORT)
/* Any error on CMD53 transaction should abort that function using function 0. */
while (sdio_abort_retry--) {
if (sd->func[0]) {
sdio_claim_host(sd->func[0]);
/*
* this sdio_f0_writeb() can be replaced with another api
* depending upon MMC driver change.
* As of this time, this is temporaray one
*/
sdio_writeb(sd->func[0],
func, SDIOD_CCCR_IOABORT, &err_ret);
sdio_release_host(sd->func[0]);
}
if (!err_ret)
break;
}
if (err_ret)
#endif /* MMC_SDIO_ABORT */
{
sd_err(("bcmsdh_sdmmc: Failed to %s word, Err: 0x%08x",
rw ? "Write" : "Read", err_ret));
}
}
return ((err_ret == 0) ? SDIOH_API_RC_SUCCESS : SDIOH_API_RC_FAIL);
}
static SDIOH_API_RC
sdioh_request_packet_chain(sdioh_info_t *sd, uint fix_inc, uint write, uint func,
uint addr, void *pkt)
{
bool fifo = (fix_inc == SDIOH_DATA_FIX);
int err_ret = 0;
void *pnext;
uint ttl_len, pkt_offset;
uint blk_num;
uint blk_size;
uint max_blk_count;
uint max_req_size;
struct mmc_request mmc_req;
struct mmc_command mmc_cmd;
struct mmc_data mmc_dat;
uint32 sg_count;
struct sdio_func *sdio_func = sd->func[func];
struct mmc_host *host = sdio_func->card->host;
sd_trace(("%s: Enter\n", __FUNCTION__));
ASSERT(pkt);
DHD_PM_RESUME_WAIT(sdioh_request_packet_wait);
DHD_PM_RESUME_RETURN_ERROR(SDIOH_API_RC_FAIL);
blk_size = sd->client_block_size[func];
max_blk_count = min(host->max_blk_count, (uint)MAX_IO_RW_EXTENDED_BLK);
max_req_size = min(max_blk_count * blk_size, host->max_req_size);
pkt_offset = 0;
pnext = pkt;
while (pnext != NULL) {
ttl_len = 0;
sg_count = 0;
memset(&mmc_req, 0, sizeof(struct mmc_request));
memset(&mmc_cmd, 0, sizeof(struct mmc_command));
memset(&mmc_dat, 0, sizeof(struct mmc_data));
sg_init_table(sd->sg_list, ARRAYSIZE(sd->sg_list));
/* Set up scatter-gather DMA descriptors. this loop is to find out the max
* data we can transfer with one command 53. blocks per command is limited by
* host max_req_size and 9-bit max block number. when the total length of this
* packet chain is bigger than max_req_size, use multiple SD_IO_RW_EXTENDED
* commands (each transfer is still block aligned)
*/
while (pnext != NULL && ttl_len < max_req_size) {