/
tlan.c
3284 lines (2690 loc) · 85.6 KB
/
tlan.c
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/*******************************************************************************
*
* Linux ThunderLAN Driver
*
* tlan.c
* by James Banks
*
* (C) 1997-1998 Caldera, Inc.
* (C) 1998 James Banks
* (C) 1999-2001 Torben Mathiasen
* (C) 2002 Samuel Chessman
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*
** Useful (if not required) reading:
*
* Texas Instruments, ThunderLAN Programmer's Guide,
* TI Literature Number SPWU013A
* available in PDF format from www.ti.com
* Level One, LXT901 and LXT970 Data Sheets
* available in PDF format from www.level1.com
* National Semiconductor, DP83840A Data Sheet
* available in PDF format from www.national.com
* Microchip Technology, 24C01A/02A/04A Data Sheet
* available in PDF format from www.microchip.com
*
******************************************************************************/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/hardirq.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/eisa.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/mii.h>
#include "tlan.h"
/* For removing EISA devices */
static struct net_device *tlan_eisa_devices;
static int tlan_devices_installed;
/* Set speed, duplex and aui settings */
static int aui[MAX_TLAN_BOARDS];
static int duplex[MAX_TLAN_BOARDS];
static int speed[MAX_TLAN_BOARDS];
static int boards_found;
module_param_array(aui, int, NULL, 0);
module_param_array(duplex, int, NULL, 0);
module_param_array(speed, int, NULL, 0);
MODULE_PARM_DESC(aui, "ThunderLAN use AUI port(s) (0-1)");
MODULE_PARM_DESC(duplex,
"ThunderLAN duplex setting(s) (0-default, 1-half, 2-full)");
MODULE_PARM_DESC(speed, "ThunderLAN port speed setting(s) (0,10,100)");
MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
MODULE_LICENSE("GPL");
/* Turn on debugging. See Documentation/networking/tlan.txt for details */
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "ThunderLAN debug mask");
static const char tlan_signature[] = "TLAN";
static const char tlan_banner[] = "ThunderLAN driver v1.17\n";
static int tlan_have_pci;
static int tlan_have_eisa;
static const char * const media[] = {
"10BaseT-HD", "10BaseT-FD", "100baseTx-HD",
"100BaseTx-FD", "100BaseT4", NULL
};
static struct board {
const char *device_label;
u32 flags;
u16 addr_ofs;
} board_info[] = {
{ "Compaq Netelligent 10 T PCI UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
{ "Compaq Netelligent 10/100 TX PCI UTP",
TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
{ "Compaq Integrated NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
{ "Compaq NetFlex-3/P",
TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
{ "Compaq NetFlex-3/P", TLAN_ADAPTER_NONE, 0x83 },
{ "Compaq Netelligent Integrated 10/100 TX UTP",
TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
{ "Compaq Netelligent Dual 10/100 TX PCI UTP",
TLAN_ADAPTER_NONE, 0x83 },
{ "Compaq Netelligent 10/100 TX Embedded UTP",
TLAN_ADAPTER_NONE, 0x83 },
{ "Olicom OC-2183/2185", TLAN_ADAPTER_USE_INTERN_10, 0x83 },
{ "Olicom OC-2325", TLAN_ADAPTER_ACTIVITY_LED |
TLAN_ADAPTER_UNMANAGED_PHY, 0xf8 },
{ "Olicom OC-2326", TLAN_ADAPTER_ACTIVITY_LED |
TLAN_ADAPTER_USE_INTERN_10, 0xf8 },
{ "Compaq Netelligent 10/100 TX UTP", TLAN_ADAPTER_ACTIVITY_LED, 0x83 },
{ "Compaq Netelligent 10 T/2 PCI UTP/coax", TLAN_ADAPTER_NONE, 0x83 },
{ "Compaq NetFlex-3/E",
TLAN_ADAPTER_ACTIVITY_LED | /* EISA card */
TLAN_ADAPTER_UNMANAGED_PHY | TLAN_ADAPTER_BIT_RATE_PHY, 0x83 },
{ "Compaq NetFlex-3/E",
TLAN_ADAPTER_ACTIVITY_LED, 0x83 }, /* EISA card */
};
static const struct pci_device_id tlan_pci_tbl[] = {
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL10,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3I,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_THUNDER,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETFLEX3B,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100PI,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100D,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_NETEL100I,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2183,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2325,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
{ PCI_VENDOR_ID_OLICOM, PCI_DEVICE_ID_OLICOM_OC2326,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_100_WS_5100,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11 },
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_NETELLIGENT_10_T2,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12 },
{ 0,}
};
MODULE_DEVICE_TABLE(pci, tlan_pci_tbl);
static void tlan_eisa_probe(void);
static void tlan_eisa_cleanup(void);
static int tlan_init(struct net_device *);
static int tlan_open(struct net_device *dev);
static netdev_tx_t tlan_start_tx(struct sk_buff *, struct net_device *);
static irqreturn_t tlan_handle_interrupt(int, void *);
static int tlan_close(struct net_device *);
static struct net_device_stats *tlan_get_stats(struct net_device *);
static void tlan_set_multicast_list(struct net_device *);
static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int tlan_probe1(struct pci_dev *pdev, long ioaddr,
int irq, int rev, const struct pci_device_id *ent);
static void tlan_tx_timeout(struct net_device *dev);
static void tlan_tx_timeout_work(struct work_struct *work);
static int tlan_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent);
static u32 tlan_handle_tx_eof(struct net_device *, u16);
static u32 tlan_handle_stat_overflow(struct net_device *, u16);
static u32 tlan_handle_rx_eof(struct net_device *, u16);
static u32 tlan_handle_dummy(struct net_device *, u16);
static u32 tlan_handle_tx_eoc(struct net_device *, u16);
static u32 tlan_handle_status_check(struct net_device *, u16);
static u32 tlan_handle_rx_eoc(struct net_device *, u16);
static void tlan_timer(struct timer_list *t);
static void tlan_phy_monitor(struct timer_list *t);
static void tlan_reset_lists(struct net_device *);
static void tlan_free_lists(struct net_device *);
static void tlan_print_dio(u16);
static void tlan_print_list(struct tlan_list *, char *, int);
static void tlan_read_and_clear_stats(struct net_device *, int);
static void tlan_reset_adapter(struct net_device *);
static void tlan_finish_reset(struct net_device *);
static void tlan_set_mac(struct net_device *, int areg, char *mac);
static void tlan_phy_print(struct net_device *);
static void tlan_phy_detect(struct net_device *);
static void tlan_phy_power_down(struct net_device *);
static void tlan_phy_power_up(struct net_device *);
static void tlan_phy_reset(struct net_device *);
static void tlan_phy_start_link(struct net_device *);
static void tlan_phy_finish_auto_neg(struct net_device *);
/*
static int tlan_phy_nop(struct net_device *);
static int tlan_phy_internal_check(struct net_device *);
static int tlan_phy_internal_service(struct net_device *);
static int tlan_phy_dp83840a_check(struct net_device *);
*/
static bool tlan_mii_read_reg(struct net_device *, u16, u16, u16 *);
static void tlan_mii_send_data(u16, u32, unsigned);
static void tlan_mii_sync(u16);
static void tlan_mii_write_reg(struct net_device *, u16, u16, u16);
static void tlan_ee_send_start(u16);
static int tlan_ee_send_byte(u16, u8, int);
static void tlan_ee_receive_byte(u16, u8 *, int);
static int tlan_ee_read_byte(struct net_device *, u8, u8 *);
static inline void
tlan_store_skb(struct tlan_list *tag, struct sk_buff *skb)
{
unsigned long addr = (unsigned long)skb;
tag->buffer[9].address = addr;
tag->buffer[8].address = upper_32_bits(addr);
}
static inline struct sk_buff *
tlan_get_skb(const struct tlan_list *tag)
{
unsigned long addr;
addr = tag->buffer[9].address;
addr |= ((unsigned long) tag->buffer[8].address << 16) << 16;
return (struct sk_buff *) addr;
}
static u32
(*tlan_int_vector[TLAN_INT_NUMBER_OF_INTS])(struct net_device *, u16) = {
NULL,
tlan_handle_tx_eof,
tlan_handle_stat_overflow,
tlan_handle_rx_eof,
tlan_handle_dummy,
tlan_handle_tx_eoc,
tlan_handle_status_check,
tlan_handle_rx_eoc
};
static inline void
tlan_set_timer(struct net_device *dev, u32 ticks, u32 type)
{
struct tlan_priv *priv = netdev_priv(dev);
unsigned long flags = 0;
if (!in_irq())
spin_lock_irqsave(&priv->lock, flags);
if (priv->timer.function != NULL &&
priv->timer_type != TLAN_TIMER_ACTIVITY) {
if (!in_irq())
spin_unlock_irqrestore(&priv->lock, flags);
return;
}
priv->timer.function = tlan_timer;
if (!in_irq())
spin_unlock_irqrestore(&priv->lock, flags);
priv->timer_set_at = jiffies;
priv->timer_type = type;
mod_timer(&priv->timer, jiffies + ticks);
}
/*****************************************************************************
******************************************************************************
ThunderLAN driver primary functions
these functions are more or less common to all linux network drivers.
******************************************************************************
*****************************************************************************/
/***************************************************************
* tlan_remove_one
*
* Returns:
* Nothing
* Parms:
* None
*
* Goes through the TLanDevices list and frees the device
* structs and memory associated with each device (lists
* and buffers). It also ureserves the IO port regions
* associated with this device.
*
**************************************************************/
static void tlan_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct tlan_priv *priv = netdev_priv(dev);
unregister_netdev(dev);
if (priv->dma_storage) {
pci_free_consistent(priv->pci_dev,
priv->dma_size, priv->dma_storage,
priv->dma_storage_dma);
}
#ifdef CONFIG_PCI
pci_release_regions(pdev);
#endif
free_netdev(dev);
cancel_work_sync(&priv->tlan_tqueue);
}
static void tlan_start(struct net_device *dev)
{
tlan_reset_lists(dev);
/* NOTE: It might not be necessary to read the stats before a
reset if you don't care what the values are.
*/
tlan_read_and_clear_stats(dev, TLAN_IGNORE);
tlan_reset_adapter(dev);
netif_wake_queue(dev);
}
static void tlan_stop(struct net_device *dev)
{
struct tlan_priv *priv = netdev_priv(dev);
del_timer_sync(&priv->media_timer);
tlan_read_and_clear_stats(dev, TLAN_RECORD);
outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
/* Reset and power down phy */
tlan_reset_adapter(dev);
if (priv->timer.function != NULL) {
del_timer_sync(&priv->timer);
priv->timer.function = NULL;
}
}
#ifdef CONFIG_PM
static int tlan_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct net_device *dev = pci_get_drvdata(pdev);
if (netif_running(dev))
tlan_stop(dev);
netif_device_detach(dev);
pci_save_state(pdev);
pci_disable_device(pdev);
pci_wake_from_d3(pdev, false);
pci_set_power_state(pdev, PCI_D3hot);
return 0;
}
static int tlan_resume(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
int rc = pci_enable_device(pdev);
if (rc)
return rc;
pci_restore_state(pdev);
pci_enable_wake(pdev, PCI_D0, 0);
netif_device_attach(dev);
if (netif_running(dev))
tlan_start(dev);
return 0;
}
#else /* CONFIG_PM */
#define tlan_suspend NULL
#define tlan_resume NULL
#endif /* CONFIG_PM */
static struct pci_driver tlan_driver = {
.name = "tlan",
.id_table = tlan_pci_tbl,
.probe = tlan_init_one,
.remove = tlan_remove_one,
.suspend = tlan_suspend,
.resume = tlan_resume,
};
static int __init tlan_probe(void)
{
int rc = -ENODEV;
pr_info("%s", tlan_banner);
TLAN_DBG(TLAN_DEBUG_PROBE, "Starting PCI Probe....\n");
/* Use new style PCI probing. Now the kernel will
do most of this for us */
rc = pci_register_driver(&tlan_driver);
if (rc != 0) {
pr_err("Could not register pci driver\n");
goto err_out_pci_free;
}
TLAN_DBG(TLAN_DEBUG_PROBE, "Starting EISA Probe....\n");
tlan_eisa_probe();
pr_info("%d device%s installed, PCI: %d EISA: %d\n",
tlan_devices_installed, tlan_devices_installed == 1 ? "" : "s",
tlan_have_pci, tlan_have_eisa);
if (tlan_devices_installed == 0) {
rc = -ENODEV;
goto err_out_pci_unreg;
}
return 0;
err_out_pci_unreg:
pci_unregister_driver(&tlan_driver);
err_out_pci_free:
return rc;
}
static int tlan_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
return tlan_probe1(pdev, -1, -1, 0, ent);
}
/*
***************************************************************
* tlan_probe1
*
* Returns:
* 0 on success, error code on error
* Parms:
* none
*
* The name is lower case to fit in with all the rest of
* the netcard_probe names. This function looks for
* another TLan based adapter, setting it up with the
* allocated device struct if one is found.
* tlan_probe has been ported to the new net API and
* now allocates its own device structure. This function
* is also used by modules.
*
**************************************************************/
static int tlan_probe1(struct pci_dev *pdev, long ioaddr, int irq, int rev,
const struct pci_device_id *ent)
{
struct net_device *dev;
struct tlan_priv *priv;
u16 device_id;
int reg, rc = -ENODEV;
#ifdef CONFIG_PCI
if (pdev) {
rc = pci_enable_device(pdev);
if (rc)
return rc;
rc = pci_request_regions(pdev, tlan_signature);
if (rc) {
pr_err("Could not reserve IO regions\n");
goto err_out;
}
}
#endif /* CONFIG_PCI */
dev = alloc_etherdev(sizeof(struct tlan_priv));
if (dev == NULL) {
rc = -ENOMEM;
goto err_out_regions;
}
SET_NETDEV_DEV(dev, &pdev->dev);
priv = netdev_priv(dev);
priv->pci_dev = pdev;
priv->dev = dev;
/* Is this a PCI device? */
if (pdev) {
u32 pci_io_base = 0;
priv->adapter = &board_info[ent->driver_data];
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
pr_err("No suitable PCI mapping available\n");
goto err_out_free_dev;
}
for (reg = 0; reg <= 5; reg++) {
if (pci_resource_flags(pdev, reg) & IORESOURCE_IO) {
pci_io_base = pci_resource_start(pdev, reg);
TLAN_DBG(TLAN_DEBUG_GNRL,
"IO mapping is available at %x.\n",
pci_io_base);
break;
}
}
if (!pci_io_base) {
pr_err("No IO mappings available\n");
rc = -EIO;
goto err_out_free_dev;
}
dev->base_addr = pci_io_base;
dev->irq = pdev->irq;
priv->adapter_rev = pdev->revision;
pci_set_master(pdev);
pci_set_drvdata(pdev, dev);
} else { /* EISA card */
/* This is a hack. We need to know which board structure
* is suited for this adapter */
device_id = inw(ioaddr + EISA_ID2);
if (device_id == 0x20F1) {
priv->adapter = &board_info[13]; /* NetFlex-3/E */
priv->adapter_rev = 23; /* TLAN 2.3 */
} else {
priv->adapter = &board_info[14];
priv->adapter_rev = 10; /* TLAN 1.0 */
}
dev->base_addr = ioaddr;
dev->irq = irq;
}
/* Kernel parameters */
if (dev->mem_start) {
priv->aui = dev->mem_start & 0x01;
priv->duplex = ((dev->mem_start & 0x06) == 0x06) ? 0
: (dev->mem_start & 0x06) >> 1;
priv->speed = ((dev->mem_start & 0x18) == 0x18) ? 0
: (dev->mem_start & 0x18) >> 3;
if (priv->speed == 0x1)
priv->speed = TLAN_SPEED_10;
else if (priv->speed == 0x2)
priv->speed = TLAN_SPEED_100;
debug = priv->debug = dev->mem_end;
} else {
priv->aui = aui[boards_found];
priv->speed = speed[boards_found];
priv->duplex = duplex[boards_found];
priv->debug = debug;
}
/* This will be used when we get an adapter error from
* within our irq handler */
INIT_WORK(&priv->tlan_tqueue, tlan_tx_timeout_work);
spin_lock_init(&priv->lock);
rc = tlan_init(dev);
if (rc) {
pr_err("Could not set up device\n");
goto err_out_free_dev;
}
rc = register_netdev(dev);
if (rc) {
pr_err("Could not register device\n");
goto err_out_uninit;
}
tlan_devices_installed++;
boards_found++;
/* pdev is NULL if this is an EISA device */
if (pdev)
tlan_have_pci++;
else {
priv->next_device = tlan_eisa_devices;
tlan_eisa_devices = dev;
tlan_have_eisa++;
}
netdev_info(dev, "irq=%2d, io=%04x, %s, Rev. %d\n",
(int)dev->irq,
(int)dev->base_addr,
priv->adapter->device_label,
priv->adapter_rev);
return 0;
err_out_uninit:
pci_free_consistent(priv->pci_dev, priv->dma_size, priv->dma_storage,
priv->dma_storage_dma);
err_out_free_dev:
free_netdev(dev);
err_out_regions:
#ifdef CONFIG_PCI
if (pdev)
pci_release_regions(pdev);
err_out:
#endif
if (pdev)
pci_disable_device(pdev);
return rc;
}
static void tlan_eisa_cleanup(void)
{
struct net_device *dev;
struct tlan_priv *priv;
while (tlan_have_eisa) {
dev = tlan_eisa_devices;
priv = netdev_priv(dev);
if (priv->dma_storage) {
pci_free_consistent(priv->pci_dev, priv->dma_size,
priv->dma_storage,
priv->dma_storage_dma);
}
release_region(dev->base_addr, 0x10);
unregister_netdev(dev);
tlan_eisa_devices = priv->next_device;
free_netdev(dev);
tlan_have_eisa--;
}
}
static void __exit tlan_exit(void)
{
pci_unregister_driver(&tlan_driver);
if (tlan_have_eisa)
tlan_eisa_cleanup();
}
/* Module loading/unloading */
module_init(tlan_probe);
module_exit(tlan_exit);
/**************************************************************
* tlan_eisa_probe
*
* Returns: 0 on success, 1 otherwise
*
* Parms: None
*
*
* This functions probes for EISA devices and calls
* TLan_probe1 when one is found.
*
*************************************************************/
static void __init tlan_eisa_probe(void)
{
long ioaddr;
int rc = -ENODEV;
int irq;
u16 device_id;
if (!EISA_bus) {
TLAN_DBG(TLAN_DEBUG_PROBE, "No EISA bus present\n");
return;
}
/* Loop through all slots of the EISA bus */
for (ioaddr = 0x1000; ioaddr < 0x9000; ioaddr += 0x1000) {
TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
(int) ioaddr + 0xc80, inw(ioaddr + EISA_ID));
TLAN_DBG(TLAN_DEBUG_PROBE, "EISA_ID 0x%4x: 0x%4x\n",
(int) ioaddr + 0xc82, inw(ioaddr + EISA_ID2));
TLAN_DBG(TLAN_DEBUG_PROBE,
"Probing for EISA adapter at IO: 0x%4x : ",
(int) ioaddr);
if (request_region(ioaddr, 0x10, tlan_signature) == NULL)
goto out;
if (inw(ioaddr + EISA_ID) != 0x110E) {
release_region(ioaddr, 0x10);
goto out;
}
device_id = inw(ioaddr + EISA_ID2);
if (device_id != 0x20F1 && device_id != 0x40F1) {
release_region(ioaddr, 0x10);
goto out;
}
/* check if adapter is enabled */
if (inb(ioaddr + EISA_CR) != 0x1) {
release_region(ioaddr, 0x10);
goto out2;
}
if (debug == 0x10)
pr_info("Found one\n");
/* Get irq from board */
switch (inb(ioaddr + 0xcc0)) {
case(0x10):
irq = 5;
break;
case(0x20):
irq = 9;
break;
case(0x40):
irq = 10;
break;
case(0x80):
irq = 11;
break;
default:
goto out;
}
/* Setup the newly found eisa adapter */
rc = tlan_probe1(NULL, ioaddr, irq,
12, NULL);
continue;
out:
if (debug == 0x10)
pr_info("None found\n");
continue;
out2:
if (debug == 0x10)
pr_info("Card found but it is not enabled, skipping\n");
continue;
}
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void tlan_poll(struct net_device *dev)
{
disable_irq(dev->irq);
tlan_handle_interrupt(dev->irq, dev);
enable_irq(dev->irq);
}
#endif
static const struct net_device_ops tlan_netdev_ops = {
.ndo_open = tlan_open,
.ndo_stop = tlan_close,
.ndo_start_xmit = tlan_start_tx,
.ndo_tx_timeout = tlan_tx_timeout,
.ndo_get_stats = tlan_get_stats,
.ndo_set_rx_mode = tlan_set_multicast_list,
.ndo_do_ioctl = tlan_ioctl,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = tlan_poll,
#endif
};
static void tlan_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct tlan_priv *priv = netdev_priv(dev);
strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
if (priv->pci_dev)
strlcpy(info->bus_info, pci_name(priv->pci_dev),
sizeof(info->bus_info));
else
strlcpy(info->bus_info, "EISA", sizeof(info->bus_info));
}
static int tlan_get_eeprom_len(struct net_device *dev)
{
return TLAN_EEPROM_SIZE;
}
static int tlan_get_eeprom(struct net_device *dev,
struct ethtool_eeprom *eeprom, u8 *data)
{
int i;
for (i = 0; i < TLAN_EEPROM_SIZE; i++)
if (tlan_ee_read_byte(dev, i, &data[i]))
return -EIO;
return 0;
}
static const struct ethtool_ops tlan_ethtool_ops = {
.get_drvinfo = tlan_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_eeprom_len = tlan_get_eeprom_len,
.get_eeprom = tlan_get_eeprom,
};
/***************************************************************
* tlan_init
*
* Returns:
* 0 on success, error code otherwise.
* Parms:
* dev The structure of the device to be
* init'ed.
*
* This function completes the initialization of the
* device structure and driver. It reserves the IO
* addresses, allocates memory for the lists and bounce
* buffers, retrieves the MAC address from the eeprom
* and assignes the device's methods.
*
**************************************************************/
static int tlan_init(struct net_device *dev)
{
int dma_size;
int err;
int i;
struct tlan_priv *priv;
priv = netdev_priv(dev);
dma_size = (TLAN_NUM_RX_LISTS + TLAN_NUM_TX_LISTS)
* (sizeof(struct tlan_list));
priv->dma_storage = pci_alloc_consistent(priv->pci_dev,
dma_size,
&priv->dma_storage_dma);
priv->dma_size = dma_size;
if (priv->dma_storage == NULL) {
pr_err("Could not allocate lists and buffers for %s\n",
dev->name);
return -ENOMEM;
}
memset(priv->dma_storage, 0, dma_size);
priv->rx_list = (struct tlan_list *)
ALIGN((unsigned long)priv->dma_storage, 8);
priv->rx_list_dma = ALIGN(priv->dma_storage_dma, 8);
priv->tx_list = priv->rx_list + TLAN_NUM_RX_LISTS;
priv->tx_list_dma =
priv->rx_list_dma + sizeof(struct tlan_list)*TLAN_NUM_RX_LISTS;
err = 0;
for (i = 0; i < ETH_ALEN; i++)
err |= tlan_ee_read_byte(dev,
(u8) priv->adapter->addr_ofs + i,
(u8 *) &dev->dev_addr[i]);
if (err) {
pr_err("%s: Error reading MAC from eeprom: %d\n",
dev->name, err);
}
/* Olicom OC-2325/OC-2326 have the address byte-swapped */
if (priv->adapter->addr_ofs == 0xf8) {
for (i = 0; i < ETH_ALEN; i += 2) {
char tmp = dev->dev_addr[i];
dev->dev_addr[i] = dev->dev_addr[i + 1];
dev->dev_addr[i + 1] = tmp;
}
}
netif_carrier_off(dev);
/* Device methods */
dev->netdev_ops = &tlan_netdev_ops;
dev->ethtool_ops = &tlan_ethtool_ops;
dev->watchdog_timeo = TX_TIMEOUT;
return 0;
}
/***************************************************************
* tlan_open
*
* Returns:
* 0 on success, error code otherwise.
* Parms:
* dev Structure of device to be opened.
*
* This routine puts the driver and TLAN adapter in a
* state where it is ready to send and receive packets.
* It allocates the IRQ, resets and brings the adapter
* out of reset, and allows interrupts. It also delays
* the startup for autonegotiation or sends a Rx GO
* command to the adapter, as appropriate.
*
**************************************************************/
static int tlan_open(struct net_device *dev)
{
struct tlan_priv *priv = netdev_priv(dev);
int err;
priv->tlan_rev = tlan_dio_read8(dev->base_addr, TLAN_DEF_REVISION);
err = request_irq(dev->irq, tlan_handle_interrupt, IRQF_SHARED,
dev->name, dev);
if (err) {
netdev_err(dev, "Cannot open because IRQ %d is already in use\n",
dev->irq);
return err;
}
timer_setup(&priv->timer, NULL, 0);
timer_setup(&priv->media_timer, tlan_phy_monitor, 0);
tlan_start(dev);
TLAN_DBG(TLAN_DEBUG_GNRL, "%s: Opened. TLAN Chip Rev: %x\n",
dev->name, priv->tlan_rev);
return 0;
}
/**************************************************************
* tlan_ioctl
*
* Returns:
* 0 on success, error code otherwise
* Params:
* dev structure of device to receive ioctl.
*
* rq ifreq structure to hold userspace data.
*
* cmd ioctl command.
*
*
*************************************************************/
static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct tlan_priv *priv = netdev_priv(dev);
struct mii_ioctl_data *data = if_mii(rq);
u32 phy = priv->phy[priv->phy_num];
if (!priv->phy_online)
return -EAGAIN;
switch (cmd) {
case SIOCGMIIPHY: /* get address of MII PHY in use. */
data->phy_id = phy;
case SIOCGMIIREG: /* read MII PHY register. */
tlan_mii_read_reg(dev, data->phy_id & 0x1f,
data->reg_num & 0x1f, &data->val_out);
return 0;
case SIOCSMIIREG: /* write MII PHY register. */
tlan_mii_write_reg(dev, data->phy_id & 0x1f,
data->reg_num & 0x1f, data->val_in);
return 0;
default:
return -EOPNOTSUPP;
}
}
/***************************************************************
* tlan_tx_timeout
*
* Returns: nothing
*
* Params:
* dev structure of device which timed out
* during transmit.
*
**************************************************************/
static void tlan_tx_timeout(struct net_device *dev)
{