/
pcnet_cs.c
1710 lines (1449 loc) · 60.3 KB
/
pcnet_cs.c
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/*======================================================================
A PCMCIA ethernet driver for NS8390-based cards
This driver supports the D-Link DE-650 and Linksys EthernetCard
cards, the newer D-Link and Linksys combo cards, Accton EN2212
cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory
mode, and the IBM Credit Card Adapter, the NE4100, the Thomas
Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory
mode. It will also handle the Socket EA card in either mode.
Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
pcnet_cs.c 1.153 2003/11/09 18:53:09
The network driver code is based on Donald Becker's NE2000 code:
Written 1992,1993 by Donald Becker.
Copyright 1993 United States Government as represented by the
Director, National Security Agency. This software may be used and
distributed according to the terms of the GNU General Public License,
incorporated herein by reference.
Donald Becker may be reached at becker@scyld.com
Based also on Keith Moore's changes to Don Becker's code, for IBM
CCAE support. Drivers merged back together, and shared-memory
Socket EA support added, by Ken Raeburn, September 1995.
======================================================================*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/ptrace.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/log2.h>
#include <linux/etherdevice.h>
#include <linux/mii.h>
#include "8390.h"
#include <pcmcia/cistpl.h>
#include <pcmcia/ciscode.h>
#include <pcmcia/ds.h>
#include <pcmcia/cisreg.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/byteorder.h>
#include <asm/uaccess.h>
#define PCNET_CMD 0x00
#define PCNET_DATAPORT 0x10 /* NatSemi-defined port window offset. */
#define PCNET_RESET 0x1f /* Issue a read to reset, a write to clear. */
#define PCNET_MISC 0x18 /* For IBM CCAE and Socket EA cards */
#define PCNET_START_PG 0x40 /* First page of TX buffer */
#define PCNET_STOP_PG 0x80 /* Last page +1 of RX ring */
/* Socket EA cards have a larger packet buffer */
#define SOCKET_START_PG 0x01
#define SOCKET_STOP_PG 0xff
#define PCNET_RDC_TIMEOUT (2*HZ/100) /* Max wait in jiffies for Tx RDC */
static const char *if_names[] = { "auto", "10baseT", "10base2"};
/*====================================================================*/
/* Module parameters */
MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
MODULE_DESCRIPTION("NE2000 compatible PCMCIA ethernet driver");
MODULE_LICENSE("GPL");
#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
INT_MODULE_PARM(if_port, 1); /* Transceiver type */
INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */
INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */
INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */
INT_MODULE_PARM(delay_time, 4); /* in usec */
INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */
INT_MODULE_PARM(full_duplex, 0); /* full duplex? */
/* Ugh! Let the user hardwire the hardware address for queer cards */
static int hw_addr[6] = { 0, /* ... */ };
module_param_array(hw_addr, int, NULL, 0);
/*====================================================================*/
static void mii_phy_probe(struct net_device *dev);
static int pcnet_config(struct pcmcia_device *link);
static void pcnet_release(struct pcmcia_device *link);
static int pcnet_open(struct net_device *dev);
static int pcnet_close(struct net_device *dev);
static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static irqreturn_t ei_irq_wrapper(int irq, void *dev_id);
static void ei_watchdog(u_long arg);
static void pcnet_reset_8390(struct net_device *dev);
static int set_config(struct net_device *dev, struct ifmap *map);
static int setup_shmem_window(struct pcmcia_device *link, int start_pg,
int stop_pg, int cm_offset);
static int setup_dma_config(struct pcmcia_device *link, int start_pg,
int stop_pg);
static void pcnet_detach(struct pcmcia_device *p_dev);
/*====================================================================*/
typedef struct hw_info_t {
u_int offset;
u_char a0, a1, a2;
u_int flags;
} hw_info_t;
#define DELAY_OUTPUT 0x01
#define HAS_MISC_REG 0x02
#define USE_BIG_BUF 0x04
#define HAS_IBM_MISC 0x08
#define IS_DL10019 0x10
#define IS_DL10022 0x20
#define HAS_MII 0x40
#define USE_SHMEM 0x80 /* autodetected */
#define AM79C9XX_HOME_PHY 0x00006B90 /* HomePNA PHY */
#define AM79C9XX_ETH_PHY 0x00006B70 /* 10baseT PHY */
#define MII_PHYID_REV_MASK 0xfffffff0
#define MII_PHYID_REG1 0x02
#define MII_PHYID_REG2 0x03
static hw_info_t hw_info[] = {
{ /* Accton EN2212 */ 0x0ff0, 0x00, 0x00, 0xe8, DELAY_OUTPUT },
{ /* Allied Telesis LA-PCM */ 0x0ff0, 0x00, 0x00, 0xf4, 0 },
{ /* APEX MultiCard */ 0x03f4, 0x00, 0x20, 0xe5, 0 },
{ /* ASANTE FriendlyNet */ 0x4910, 0x00, 0x00, 0x94,
DELAY_OUTPUT | HAS_IBM_MISC },
{ /* Danpex EN-6200P2 */ 0x0110, 0x00, 0x40, 0xc7, 0 },
{ /* DataTrek NetCard */ 0x0ff0, 0x00, 0x20, 0xe8, 0 },
{ /* Dayna CommuniCard E */ 0x0110, 0x00, 0x80, 0x19, 0 },
{ /* D-Link DE-650 */ 0x0040, 0x00, 0x80, 0xc8, 0 },
{ /* EP-210 Ethernet */ 0x0110, 0x00, 0x40, 0x33, 0 },
{ /* EP4000 Ethernet */ 0x01c0, 0x00, 0x00, 0xb4, 0 },
{ /* Epson EEN10B */ 0x0ff0, 0x00, 0x00, 0x48,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* ELECOM Laneed LD-CDWA */ 0xb8, 0x08, 0x00, 0x42, 0 },
{ /* Hypertec Ethernet */ 0x01c0, 0x00, 0x40, 0x4c, 0 },
{ /* IBM CCAE */ 0x0ff0, 0x08, 0x00, 0x5a,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* IBM CCAE */ 0x0ff0, 0x00, 0x04, 0xac,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* IBM CCAE */ 0x0ff0, 0x00, 0x06, 0x29,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* IBM FME */ 0x0374, 0x08, 0x00, 0x5a,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* IBM FME */ 0x0374, 0x00, 0x04, 0xac,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* Kansai KLA-PCM/T */ 0x0ff0, 0x00, 0x60, 0x87,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* NSC DP83903 */ 0x0374, 0x08, 0x00, 0x17,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* NSC DP83903 */ 0x0374, 0x00, 0xc0, 0xa8,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* NSC DP83903 */ 0x0374, 0x00, 0xa0, 0xb0,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* NSC DP83903 */ 0x0198, 0x00, 0x20, 0xe0,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* I-O DATA PCLA/T */ 0x0ff0, 0x00, 0xa0, 0xb0, 0 },
{ /* Katron PE-520 */ 0x0110, 0x00, 0x40, 0xf6, 0 },
{ /* Kingston KNE-PCM/x */ 0x0ff0, 0x00, 0xc0, 0xf0,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* Kingston KNE-PCM/x */ 0x0ff0, 0xe2, 0x0c, 0x0f,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* Kingston KNE-PC2 */ 0x0180, 0x00, 0xc0, 0xf0, 0 },
{ /* Maxtech PCN2000 */ 0x5000, 0x00, 0x00, 0xe8, 0 },
{ /* NDC Instant-Link */ 0x003a, 0x00, 0x80, 0xc6, 0 },
{ /* NE2000 Compatible */ 0x0ff0, 0x00, 0xa0, 0x0c, 0 },
{ /* Network General Sniffer */ 0x0ff0, 0x00, 0x00, 0x65,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* Panasonic VEL211 */ 0x0ff0, 0x00, 0x80, 0x45,
HAS_MISC_REG | HAS_IBM_MISC },
{ /* PreMax PE-200 */ 0x07f0, 0x00, 0x20, 0xe0, 0 },
{ /* RPTI EP400 */ 0x0110, 0x00, 0x40, 0x95, 0 },
{ /* SCM Ethernet */ 0x0ff0, 0x00, 0x20, 0xcb, 0 },
{ /* Socket EA */ 0x4000, 0x00, 0xc0, 0x1b,
DELAY_OUTPUT | HAS_MISC_REG | USE_BIG_BUF },
{ /* Socket LP-E CF+ */ 0x01c0, 0x00, 0xc0, 0x1b, 0 },
{ /* SuperSocket RE450T */ 0x0110, 0x00, 0xe0, 0x98, 0 },
{ /* Volktek NPL-402CT */ 0x0060, 0x00, 0x40, 0x05, 0 },
{ /* NEC PC-9801N-J12 */ 0x0ff0, 0x00, 0x00, 0x4c, 0 },
{ /* PCMCIA Technology OEM */ 0x01c8, 0x00, 0xa0, 0x0c, 0 }
};
#define NR_INFO ARRAY_SIZE(hw_info)
static hw_info_t default_info = { 0, 0, 0, 0, 0 };
static hw_info_t dl10019_info = { 0, 0, 0, 0, IS_DL10019|HAS_MII };
static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII };
typedef struct pcnet_dev_t {
struct pcmcia_device *p_dev;
u_int flags;
void __iomem *base;
struct timer_list watchdog;
int stale, fast_poll;
u_char phy_id;
u_char eth_phy, pna_phy;
u_short link_status;
u_long mii_reset;
} pcnet_dev_t;
static inline pcnet_dev_t *PRIV(struct net_device *dev)
{
char *p = netdev_priv(dev);
return (pcnet_dev_t *)(p + sizeof(struct ei_device));
}
static const struct net_device_ops pcnet_netdev_ops = {
.ndo_open = pcnet_open,
.ndo_stop = pcnet_close,
.ndo_set_config = set_config,
.ndo_start_xmit = ei_start_xmit,
.ndo_get_stats = ei_get_stats,
.ndo_do_ioctl = ei_ioctl,
.ndo_set_rx_mode = ei_set_multicast_list,
.ndo_tx_timeout = ei_tx_timeout,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = ei_poll,
#endif
};
static int pcnet_probe(struct pcmcia_device *link)
{
pcnet_dev_t *info;
struct net_device *dev;
dev_dbg(&link->dev, "pcnet_attach()\n");
/* Create new ethernet device */
dev = __alloc_ei_netdev(sizeof(pcnet_dev_t));
if (!dev) return -ENOMEM;
info = PRIV(dev);
info->p_dev = link;
link->priv = dev;
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
dev->netdev_ops = &pcnet_netdev_ops;
return pcnet_config(link);
} /* pcnet_attach */
static void pcnet_detach(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
dev_dbg(&link->dev, "pcnet_detach\n");
unregister_netdev(dev);
pcnet_release(link);
free_netdev(dev);
} /* pcnet_detach */
/*======================================================================
This probes for a card's hardware address, for card types that
encode this information in their CIS.
======================================================================*/
static hw_info_t *get_hwinfo(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
u_char __iomem *base, *virt;
int i, j;
/* Allocate a small memory window */
link->resource[2]->flags |= WIN_DATA_WIDTH_8|WIN_MEMORY_TYPE_AM|WIN_ENABLE;
link->resource[2]->start = 0; link->resource[2]->end = 0;
i = pcmcia_request_window(link, link->resource[2], 0);
if (i != 0)
return NULL;
virt = ioremap(link->resource[2]->start,
resource_size(link->resource[2]));
for (i = 0; i < NR_INFO; i++) {
pcmcia_map_mem_page(link, link->resource[2],
hw_info[i].offset & ~(resource_size(link->resource[2])-1));
base = &virt[hw_info[i].offset & (resource_size(link->resource[2])-1)];
if ((readb(base+0) == hw_info[i].a0) &&
(readb(base+2) == hw_info[i].a1) &&
(readb(base+4) == hw_info[i].a2)) {
for (j = 0; j < 6; j++)
dev->dev_addr[j] = readb(base + (j<<1));
break;
}
}
iounmap(virt);
j = pcmcia_release_window(link, link->resource[2]);
return (i < NR_INFO) ? hw_info+i : NULL;
} /* get_hwinfo */
/*======================================================================
This probes for a card's hardware address by reading the PROM.
It checks the address against a list of known types, then falls
back to a simple NE2000 clone signature check.
======================================================================*/
static hw_info_t *get_prom(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
unsigned int ioaddr = dev->base_addr;
u_char prom[32];
int i, j;
/* This is lifted straight from drivers/net/ne.c */
struct {
u_char value, offset;
} program_seq[] = {
{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
{0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
{0x00, EN0_RCNTLO}, /* Clear the count regs. */
{0x00, EN0_RCNTHI},
{0x00, EN0_IMR}, /* Mask completion irq. */
{0xFF, EN0_ISR},
{E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
{E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
{32, EN0_RCNTLO},
{0x00, EN0_RCNTHI},
{0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
{0x00, EN0_RSARHI},
{E8390_RREAD+E8390_START, E8390_CMD},
};
pcnet_reset_8390(dev);
mdelay(10);
for (i = 0; i < ARRAY_SIZE(program_seq); i++)
outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
for (i = 0; i < 32; i++)
prom[i] = inb(ioaddr + PCNET_DATAPORT);
for (i = 0; i < NR_INFO; i++) {
if ((prom[0] == hw_info[i].a0) &&
(prom[2] == hw_info[i].a1) &&
(prom[4] == hw_info[i].a2))
break;
}
if ((i < NR_INFO) || ((prom[28] == 0x57) && (prom[30] == 0x57))) {
for (j = 0; j < 6; j++)
dev->dev_addr[j] = prom[j<<1];
return (i < NR_INFO) ? hw_info+i : &default_info;
}
return NULL;
} /* get_prom */
/*======================================================================
For DL10019 based cards, like the Linksys EtherFast
======================================================================*/
static hw_info_t *get_dl10019(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
int i;
u_char sum;
for (sum = 0, i = 0x14; i < 0x1c; i++)
sum += inb_p(dev->base_addr + i);
if (sum != 0xff)
return NULL;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = inb_p(dev->base_addr + 0x14 + i);
i = inb(dev->base_addr + 0x1f);
return ((i == 0x91)||(i == 0x99)) ? &dl10022_info : &dl10019_info;
}
/*======================================================================
For Asix AX88190 based cards
======================================================================*/
static hw_info_t *get_ax88190(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
unsigned int ioaddr = dev->base_addr;
int i, j;
/* Not much of a test, but the alternatives are messy */
if (link->config_base != 0x03c0)
return NULL;
outb_p(0x01, ioaddr + EN0_DCFG); /* Set word-wide access. */
outb_p(0x00, ioaddr + EN0_RSARLO); /* DMA starting at 0x0400. */
outb_p(0x04, ioaddr + EN0_RSARHI);
outb_p(E8390_RREAD+E8390_START, ioaddr + E8390_CMD);
for (i = 0; i < 6; i += 2) {
j = inw(ioaddr + PCNET_DATAPORT);
dev->dev_addr[i] = j & 0xff;
dev->dev_addr[i+1] = j >> 8;
}
return NULL;
}
/*======================================================================
This should be totally unnecessary... but when we can't figure
out the hardware address any other way, we'll let the user hard
wire it when the module is initialized.
======================================================================*/
static hw_info_t *get_hwired(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
int i;
for (i = 0; i < 6; i++)
if (hw_addr[i] != 0) break;
if (i == 6)
return NULL;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = hw_addr[i];
return &default_info;
} /* get_hwired */
static int try_io_port(struct pcmcia_device *link)
{
int j, ret;
link->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
link->resource[1]->flags &= ~IO_DATA_PATH_WIDTH;
if (link->resource[0]->end == 32) {
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
if (link->resource[1]->end > 0) {
/* for master/slave multifunction cards */
link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8;
}
} else {
/* This should be two 16-port windows */
link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
link->resource[1]->flags |= IO_DATA_PATH_WIDTH_16;
}
if (link->resource[0]->start == 0) {
for (j = 0; j < 0x400; j += 0x20) {
link->resource[0]->start = j ^ 0x300;
link->resource[1]->start = (j ^ 0x300) + 0x10;
link->io_lines = 16;
ret = pcmcia_request_io(link);
if (ret == 0)
return ret;
}
return ret;
} else {
return pcmcia_request_io(link);
}
}
static int pcnet_confcheck(struct pcmcia_device *p_dev, void *priv_data)
{
int *priv = priv_data;
int try = (*priv & 0x1);
*priv &= (p_dev->resource[2]->end >= 0x4000) ? 0x10 : ~0x10;
if (p_dev->config_index == 0)
return -EINVAL;
if (p_dev->resource[0]->end + p_dev->resource[1]->end < 32)
return -EINVAL;
if (try)
p_dev->io_lines = 16;
return try_io_port(p_dev);
}
static hw_info_t *pcnet_try_config(struct pcmcia_device *link,
int *has_shmem, int try)
{
struct net_device *dev = link->priv;
hw_info_t *local_hw_info;
pcnet_dev_t *info = PRIV(dev);
int priv = try;
int ret;
ret = pcmcia_loop_config(link, pcnet_confcheck, &priv);
if (ret) {
dev_warn(&link->dev, "no useable port range found\n");
return NULL;
}
*has_shmem = (priv & 0x10);
if (!link->irq)
return NULL;
if (resource_size(link->resource[1]) == 8)
link->config_flags |= CONF_ENABLE_SPKR;
if ((link->manf_id == MANFID_IBM) &&
(link->card_id == PRODID_IBM_HOME_AND_AWAY))
link->config_index |= 0x10;
ret = pcmcia_enable_device(link);
if (ret)
return NULL;
dev->irq = link->irq;
dev->base_addr = link->resource[0]->start;
if (info->flags & HAS_MISC_REG) {
if ((if_port == 1) || (if_port == 2))
dev->if_port = if_port;
else
dev_notice(&link->dev, "invalid if_port requested\n");
} else
dev->if_port = 0;
if ((link->config_base == 0x03c0) &&
(link->manf_id == 0x149) && (link->card_id == 0xc1ab)) {
dev_info(&link->dev,
"this is an AX88190 card - use axnet_cs instead.\n");
return NULL;
}
local_hw_info = get_hwinfo(link);
if (!local_hw_info)
local_hw_info = get_prom(link);
if (!local_hw_info)
local_hw_info = get_dl10019(link);
if (!local_hw_info)
local_hw_info = get_ax88190(link);
if (!local_hw_info)
local_hw_info = get_hwired(link);
return local_hw_info;
}
static int pcnet_config(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
pcnet_dev_t *info = PRIV(dev);
int start_pg, stop_pg, cm_offset;
int has_shmem = 0;
hw_info_t *local_hw_info;
dev_dbg(&link->dev, "pcnet_config\n");
local_hw_info = pcnet_try_config(link, &has_shmem, 0);
if (!local_hw_info) {
/* check whether forcing io_lines to 16 helps... */
pcmcia_disable_device(link);
local_hw_info = pcnet_try_config(link, &has_shmem, 1);
if (local_hw_info == NULL) {
dev_notice(&link->dev, "unable to read hardware net"
" address for io base %#3lx\n", dev->base_addr);
goto failed;
}
}
info->flags = local_hw_info->flags;
/* Check for user overrides */
info->flags |= (delay_output) ? DELAY_OUTPUT : 0;
if ((link->manf_id == MANFID_SOCKET) &&
((link->card_id == PRODID_SOCKET_LPE) ||
(link->card_id == PRODID_SOCKET_LPE_CF) ||
(link->card_id == PRODID_SOCKET_EIO)))
info->flags &= ~USE_BIG_BUF;
if (!use_big_buf)
info->flags &= ~USE_BIG_BUF;
if (info->flags & USE_BIG_BUF) {
start_pg = SOCKET_START_PG;
stop_pg = SOCKET_STOP_PG;
cm_offset = 0x10000;
} else {
start_pg = PCNET_START_PG;
stop_pg = PCNET_STOP_PG;
cm_offset = 0;
}
/* has_shmem is ignored if use_shmem != -1 */
if ((use_shmem == 0) || (!has_shmem && (use_shmem == -1)) ||
(setup_shmem_window(link, start_pg, stop_pg, cm_offset) != 0))
setup_dma_config(link, start_pg, stop_pg);
ei_status.name = "NE2000";
ei_status.word16 = 1;
ei_status.reset_8390 = pcnet_reset_8390;
if (info->flags & (IS_DL10019|IS_DL10022))
mii_phy_probe(dev);
SET_NETDEV_DEV(dev, &link->dev);
if (register_netdev(dev) != 0) {
pr_notice("register_netdev() failed\n");
goto failed;
}
if (info->flags & (IS_DL10019|IS_DL10022)) {
u_char id = inb(dev->base_addr + 0x1a);
netdev_info(dev, "NE2000 (DL100%d rev %02x): ",
(info->flags & IS_DL10022) ? 22 : 19, id);
if (info->pna_phy)
pr_cont("PNA, ");
} else {
netdev_info(dev, "NE2000 Compatible: ");
}
pr_cont("io %#3lx, irq %d,", dev->base_addr, dev->irq);
if (info->flags & USE_SHMEM)
pr_cont(" mem %#5lx,", dev->mem_start);
if (info->flags & HAS_MISC_REG)
pr_cont(" %s xcvr,", if_names[dev->if_port]);
pr_cont(" hw_addr %pM\n", dev->dev_addr);
return 0;
failed:
pcnet_release(link);
return -ENODEV;
} /* pcnet_config */
static void pcnet_release(struct pcmcia_device *link)
{
pcnet_dev_t *info = PRIV(link->priv);
dev_dbg(&link->dev, "pcnet_release\n");
if (info->flags & USE_SHMEM)
iounmap(info->base);
pcmcia_disable_device(link);
}
static int pcnet_suspend(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open)
netif_device_detach(dev);
return 0;
}
static int pcnet_resume(struct pcmcia_device *link)
{
struct net_device *dev = link->priv;
if (link->open) {
pcnet_reset_8390(dev);
NS8390_init(dev, 1);
netif_device_attach(dev);
}
return 0;
}
/*======================================================================
MII interface support for DL10019 and DL10022 based cards
On the DL10019, the MII IO direction bit is 0x10; on the DL10022
it is 0x20. Setting both bits seems to work on both card types.
======================================================================*/
#define DLINK_GPIO 0x1c
#define DLINK_DIAG 0x1d
#define DLINK_EEPROM 0x1e
#define MDIO_SHIFT_CLK 0x80
#define MDIO_DATA_OUT 0x40
#define MDIO_DIR_WRITE 0x30
#define MDIO_DATA_WRITE0 (MDIO_DIR_WRITE)
#define MDIO_DATA_WRITE1 (MDIO_DIR_WRITE | MDIO_DATA_OUT)
#define MDIO_DATA_READ 0x10
#define MDIO_MASK 0x0f
static void mdio_sync(unsigned int addr)
{
int bits, mask = inb(addr) & MDIO_MASK;
for (bits = 0; bits < 32; bits++) {
outb(mask | MDIO_DATA_WRITE1, addr);
outb(mask | MDIO_DATA_WRITE1 | MDIO_SHIFT_CLK, addr);
}
}
static int mdio_read(unsigned int addr, int phy_id, int loc)
{
u_int cmd = (0x06<<10)|(phy_id<<5)|loc;
int i, retval = 0, mask = inb(addr) & MDIO_MASK;
mdio_sync(addr);
for (i = 13; i >= 0; i--) {
int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
outb(mask | dat, addr);
outb(mask | dat | MDIO_SHIFT_CLK, addr);
}
for (i = 19; i > 0; i--) {
outb(mask, addr);
retval = (retval << 1) | ((inb(addr) & MDIO_DATA_READ) != 0);
outb(mask | MDIO_SHIFT_CLK, addr);
}
return (retval>>1) & 0xffff;
}
static void mdio_write(unsigned int addr, int phy_id, int loc, int value)
{
u_int cmd = (0x05<<28)|(phy_id<<23)|(loc<<18)|(1<<17)|value;
int i, mask = inb(addr) & MDIO_MASK;
mdio_sync(addr);
for (i = 31; i >= 0; i--) {
int dat = (cmd&(1<<i)) ? MDIO_DATA_WRITE1 : MDIO_DATA_WRITE0;
outb(mask | dat, addr);
outb(mask | dat | MDIO_SHIFT_CLK, addr);
}
for (i = 1; i >= 0; i--) {
outb(mask, addr);
outb(mask | MDIO_SHIFT_CLK, addr);
}
}
/*======================================================================
EEPROM access routines for DL10019 and DL10022 based cards
======================================================================*/
#define EE_EEP 0x40
#define EE_ASIC 0x10
#define EE_CS 0x08
#define EE_CK 0x04
#define EE_DO 0x02
#define EE_DI 0x01
#define EE_ADOT 0x01 /* DataOut for ASIC */
#define EE_READ_CMD 0x06
#define DL19FDUPLX 0x0400 /* DL10019 Full duplex mode */
static int read_eeprom(unsigned int ioaddr, int location)
{
int i, retval = 0;
unsigned int ee_addr = ioaddr + DLINK_EEPROM;
int read_cmd = location | (EE_READ_CMD << 8);
outb(0, ee_addr);
outb(EE_EEP|EE_CS, ee_addr);
/* Shift the read command bits out. */
for (i = 10; i >= 0; i--) {
short dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
outb_p(EE_EEP|EE_CS|dataval, ee_addr);
outb_p(EE_EEP|EE_CS|dataval|EE_CK, ee_addr);
}
outb(EE_EEP|EE_CS, ee_addr);
for (i = 16; i > 0; i--) {
outb_p(EE_EEP|EE_CS | EE_CK, ee_addr);
retval = (retval << 1) | ((inb(ee_addr) & EE_DI) ? 1 : 0);
outb_p(EE_EEP|EE_CS, ee_addr);
}
/* Terminate the EEPROM access. */
outb(0, ee_addr);
return retval;
}
/*
The internal ASIC registers can be changed by EEPROM READ access
with EE_ASIC bit set.
In ASIC mode, EE_ADOT is used to output the data to the ASIC.
*/
static void write_asic(unsigned int ioaddr, int location, short asic_data)
{
int i;
unsigned int ee_addr = ioaddr + DLINK_EEPROM;
short dataval;
int read_cmd = location | (EE_READ_CMD << 8);
asic_data |= read_eeprom(ioaddr, location);
outb(0, ee_addr);
outb(EE_ASIC|EE_CS|EE_DI, ee_addr);
read_cmd = read_cmd >> 1;
/* Shift the read command bits out. */
for (i = 9; i >= 0; i--) {
dataval = (read_cmd & (1 << i)) ? EE_DO : 0;
outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
outb_p(EE_ASIC|EE_CS|EE_DI|dataval|EE_CK, ee_addr);
outb_p(EE_ASIC|EE_CS|EE_DI|dataval, ee_addr);
}
// sync
outb(EE_ASIC|EE_CS, ee_addr);
outb(EE_ASIC|EE_CS|EE_CK, ee_addr);
outb(EE_ASIC|EE_CS, ee_addr);
for (i = 15; i >= 0; i--) {
dataval = (asic_data & (1 << i)) ? EE_ADOT : 0;
outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
outb_p(EE_ASIC|EE_CS|dataval|EE_CK, ee_addr);
outb_p(EE_ASIC|EE_CS|dataval, ee_addr);
}
/* Terminate the ASIC access. */
outb(EE_ASIC|EE_DI, ee_addr);
outb(EE_ASIC|EE_DI| EE_CK, ee_addr);
outb(EE_ASIC|EE_DI, ee_addr);
outb(0, ee_addr);
}
/*====================================================================*/
static void set_misc_reg(struct net_device *dev)
{
unsigned int nic_base = dev->base_addr;
pcnet_dev_t *info = PRIV(dev);
u_char tmp;
if (info->flags & HAS_MISC_REG) {
tmp = inb_p(nic_base + PCNET_MISC) & ~3;
if (dev->if_port == 2)
tmp |= 1;
if (info->flags & USE_BIG_BUF)
tmp |= 2;
if (info->flags & HAS_IBM_MISC)
tmp |= 8;
outb_p(tmp, nic_base + PCNET_MISC);
}
if (info->flags & IS_DL10022) {
if (info->flags & HAS_MII) {
/* Advertise 100F, 100H, 10F, 10H */
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1);
/* Restart MII autonegotiation */
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
info->mii_reset = jiffies;
} else {
outb(full_duplex ? 4 : 0, nic_base + DLINK_DIAG);
}
} else if (info->flags & IS_DL10019) {
/* Advertise 100F, 100H, 10F, 10H */
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 4, 0x01e1);
/* Restart MII autonegotiation */
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x0000);
mdio_write(nic_base + DLINK_GPIO, info->eth_phy, 0, 0x1200);
}
}
/*====================================================================*/
static void mii_phy_probe(struct net_device *dev)
{
pcnet_dev_t *info = PRIV(dev);
unsigned int mii_addr = dev->base_addr + DLINK_GPIO;
int i;
u_int tmp, phyid;
for (i = 31; i >= 0; i--) {
tmp = mdio_read(mii_addr, i, 1);
if ((tmp == 0) || (tmp == 0xffff))
continue;
tmp = mdio_read(mii_addr, i, MII_PHYID_REG1);
phyid = tmp << 16;
phyid |= mdio_read(mii_addr, i, MII_PHYID_REG2);
phyid &= MII_PHYID_REV_MASK;
netdev_dbg(dev, "MII at %d is 0x%08x\n", i, phyid);
if (phyid == AM79C9XX_HOME_PHY) {
info->pna_phy = i;
} else if (phyid != AM79C9XX_ETH_PHY) {
info->eth_phy = i;
}
}
}
static int pcnet_open(struct net_device *dev)
{
int ret;
pcnet_dev_t *info = PRIV(dev);
struct pcmcia_device *link = info->p_dev;
unsigned int nic_base = dev->base_addr;
dev_dbg(&link->dev, "pcnet_open('%s')\n", dev->name);
if (!pcmcia_dev_present(link))
return -ENODEV;
set_misc_reg(dev);
outb_p(0xFF, nic_base + EN0_ISR); /* Clear bogus intr. */
ret = request_irq(dev->irq, ei_irq_wrapper, IRQF_SHARED, dev->name, dev);
if (ret)
return ret;
link->open++;
info->phy_id = info->eth_phy;
info->link_status = 0x00;
init_timer(&info->watchdog);
info->watchdog.function = ei_watchdog;
info->watchdog.data = (u_long)dev;
info->watchdog.expires = jiffies + HZ;
add_timer(&info->watchdog);
return ei_open(dev);
} /* pcnet_open */
/*====================================================================*/
static int pcnet_close(struct net_device *dev)
{
pcnet_dev_t *info = PRIV(dev);
struct pcmcia_device *link = info->p_dev;
dev_dbg(&link->dev, "pcnet_close('%s')\n", dev->name);
ei_close(dev);
free_irq(dev->irq, dev);
link->open--;
netif_stop_queue(dev);
del_timer_sync(&info->watchdog);
return 0;
} /* pcnet_close */
/*======================================================================
Hard reset the card. This used to pause for the same period that
a 8390 reset command required, but that shouldn't be necessary.
======================================================================*/
static void pcnet_reset_8390(struct net_device *dev)
{
unsigned int nic_base = dev->base_addr;
int i;
ei_status.txing = ei_status.dmaing = 0;
outb_p(E8390_NODMA+E8390_PAGE0+E8390_STOP, nic_base + E8390_CMD);
outb(inb(nic_base + PCNET_RESET), nic_base + PCNET_RESET);
for (i = 0; i < 100; i++) {
if ((inb_p(nic_base+EN0_ISR) & ENISR_RESET) != 0)
break;
udelay(100);
}
outb_p(ENISR_RESET, nic_base + EN0_ISR); /* Ack intr. */
if (i == 100)
netdev_err(dev, "pcnet_reset_8390() did not complete.\n");
set_misc_reg(dev);
} /* pcnet_reset_8390 */
/*====================================================================*/
static int set_config(struct net_device *dev, struct ifmap *map)
{
pcnet_dev_t *info = PRIV(dev);
if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
if (!(info->flags & HAS_MISC_REG))
return -EOPNOTSUPP;
else if ((map->port < 1) || (map->port > 2))
return -EINVAL;
dev->if_port = map->port;
netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
NS8390_init(dev, 1);
}
return 0;
}
/*====================================================================*/
static irqreturn_t ei_irq_wrapper(int irq, void *dev_id)
{