mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1449 lines
38 KiB
1449 lines
38 KiB
/* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */ |
|
/* |
|
Written 1993-2000 by Donald Becker. |
|
|
|
Copyright 1994-2000 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. |
|
|
|
This driver is for the 3Com EtherLinkIII series. |
|
|
|
The author may be reached as [email protected], or C/O |
|
Scyld Computing Corporation |
|
410 Severn Ave., Suite 210 |
|
Annapolis MD 21403 |
|
|
|
Known limitations: |
|
Because of the way 3c509 ISA detection works it's difficult to predict |
|
a priori which of several ISA-mode cards will be detected first. |
|
|
|
This driver does not use predictive interrupt mode, resulting in higher |
|
packet latency but lower overhead. If interrupts are disabled for an |
|
unusually long time it could also result in missed packets, but in |
|
practice this rarely happens. |
|
|
|
|
|
FIXES: |
|
Alan Cox: Removed the 'Unexpected interrupt' bug. |
|
Michael Meskes: Upgraded to Donald Becker's version 1.07. |
|
Alan Cox: Increased the eeprom delay. Regardless of |
|
what the docs say some people definitely |
|
get problems with lower (but in card spec) |
|
delays |
|
v1.10 4/21/97 Fixed module code so that multiple cards may be detected, |
|
other cleanups. -djb |
|
Andrea Arcangeli: Upgraded to Donald Becker's version 1.12. |
|
Rick Payne: Fixed SMP race condition |
|
v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb |
|
v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb |
|
v1.15 1/31/98 Faster recovery for Tx errors. -djb |
|
v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb |
|
v1.18 12Mar2001 Andrew Morton |
|
- Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz) |
|
- Reviewed against 1.18 from scyld.com |
|
v1.18a 17Nov2001 Jeff Garzik <[email protected]> |
|
- ethtool support |
|
v1.18b 1Mar2002 Zwane Mwaikambo <[email protected]> |
|
- Power Management support |
|
v1.18c 1Mar2002 David Ruggiero <[email protected]> |
|
- Full duplex support |
|
v1.19 16Oct2002 Zwane Mwaikambo <[email protected]> |
|
- Additional ethtool features |
|
v1.19a 28Oct2002 Davud Ruggiero <[email protected]> |
|
- Increase *read_eeprom udelay to workaround oops with 2 cards. |
|
v1.19b 08Nov2002 Marc Zyngier <[email protected]> |
|
- Introduce driver model for EISA cards. |
|
v1.20 04Feb2008 Ondrej Zary <[email protected]> |
|
- convert to isa_driver and pnp_driver and some cleanups |
|
*/ |
|
|
|
#define DRV_NAME "3c509" |
|
|
|
/* A few values that may be tweaked. */ |
|
|
|
/* Time in jiffies before concluding the transmitter is hung. */ |
|
#define TX_TIMEOUT (400*HZ/1000) |
|
|
|
#include <linux/module.h> |
|
#include <linux/isa.h> |
|
#include <linux/pnp.h> |
|
#include <linux/string.h> |
|
#include <linux/interrupt.h> |
|
#include <linux/errno.h> |
|
#include <linux/in.h> |
|
#include <linux/ioport.h> |
|
#include <linux/init.h> |
|
#include <linux/netdevice.h> |
|
#include <linux/etherdevice.h> |
|
#include <linux/pm.h> |
|
#include <linux/skbuff.h> |
|
#include <linux/delay.h> /* for udelay() */ |
|
#include <linux/spinlock.h> |
|
#include <linux/ethtool.h> |
|
#include <linux/device.h> |
|
#include <linux/eisa.h> |
|
#include <linux/bitops.h> |
|
|
|
#include <linux/uaccess.h> |
|
#include <asm/io.h> |
|
#include <asm/irq.h> |
|
|
|
#ifdef EL3_DEBUG |
|
static int el3_debug = EL3_DEBUG; |
|
#else |
|
static int el3_debug = 2; |
|
#endif |
|
|
|
/* Used to do a global count of all the cards in the system. Must be |
|
* a global variable so that the eisa probe routines can increment |
|
* it */ |
|
static int el3_cards = 0; |
|
#define EL3_MAX_CARDS 8 |
|
|
|
/* To minimize the size of the driver source I only define operating |
|
constants if they are used several times. You'll need the manual |
|
anyway if you want to understand driver details. */ |
|
/* Offsets from base I/O address. */ |
|
#define EL3_DATA 0x00 |
|
#define EL3_CMD 0x0e |
|
#define EL3_STATUS 0x0e |
|
#define EEPROM_READ 0x80 |
|
|
|
#define EL3_IO_EXTENT 16 |
|
|
|
#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD) |
|
|
|
|
|
/* The top five bits written to EL3_CMD are a command, the lower |
|
11 bits are the parameter, if applicable. */ |
|
enum c509cmd { |
|
TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, |
|
RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, |
|
TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, |
|
FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, |
|
SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, |
|
SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, |
|
StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11, |
|
PowerDown = 28<<11, PowerAuto = 29<<11}; |
|
|
|
enum c509status { |
|
IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, |
|
TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, |
|
IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, }; |
|
|
|
/* The SetRxFilter command accepts the following classes: */ |
|
enum RxFilter { |
|
RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 }; |
|
|
|
/* Register window 1 offsets, the window used in normal operation. */ |
|
#define TX_FIFO 0x00 |
|
#define RX_FIFO 0x00 |
|
#define RX_STATUS 0x08 |
|
#define TX_STATUS 0x0B |
|
#define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ |
|
|
|
#define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */ |
|
#define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */ |
|
#define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */ |
|
#define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */ |
|
#define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */ |
|
#define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */ |
|
#define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */ |
|
|
|
/* |
|
* Must be a power of two (we use a binary and in the |
|
* circular queue) |
|
*/ |
|
#define SKB_QUEUE_SIZE 64 |
|
|
|
enum el3_cardtype { EL3_ISA, EL3_PNP, EL3_EISA }; |
|
|
|
struct el3_private { |
|
spinlock_t lock; |
|
/* skb send-queue */ |
|
int head, size; |
|
struct sk_buff *queue[SKB_QUEUE_SIZE]; |
|
enum el3_cardtype type; |
|
}; |
|
static int id_port; |
|
static int current_tag; |
|
static struct net_device *el3_devs[EL3_MAX_CARDS]; |
|
|
|
/* Parameters that may be passed into the module. */ |
|
static int debug = -1; |
|
static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1}; |
|
/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ |
|
static int max_interrupt_work = 10; |
|
#ifdef CONFIG_PNP |
|
static int nopnp; |
|
#endif |
|
|
|
static int el3_common_init(struct net_device *dev); |
|
static void el3_common_remove(struct net_device *dev); |
|
static ushort id_read_eeprom(int index); |
|
static ushort read_eeprom(int ioaddr, int index); |
|
static int el3_open(struct net_device *dev); |
|
static netdev_tx_t el3_start_xmit(struct sk_buff *skb, struct net_device *dev); |
|
static irqreturn_t el3_interrupt(int irq, void *dev_id); |
|
static void update_stats(struct net_device *dev); |
|
static struct net_device_stats *el3_get_stats(struct net_device *dev); |
|
static int el3_rx(struct net_device *dev); |
|
static int el3_close(struct net_device *dev); |
|
static void set_multicast_list(struct net_device *dev); |
|
static void el3_tx_timeout (struct net_device *dev, unsigned int txqueue); |
|
static void el3_down(struct net_device *dev); |
|
static void el3_up(struct net_device *dev); |
|
static const struct ethtool_ops ethtool_ops; |
|
#ifdef CONFIG_PM |
|
static int el3_suspend(struct device *, pm_message_t); |
|
static int el3_resume(struct device *); |
|
#else |
|
#define el3_suspend NULL |
|
#define el3_resume NULL |
|
#endif |
|
|
|
|
|
/* generic device remove for all device types */ |
|
static int el3_device_remove (struct device *device); |
|
#ifdef CONFIG_NET_POLL_CONTROLLER |
|
static void el3_poll_controller(struct net_device *dev); |
|
#endif |
|
|
|
/* Return 0 on success, 1 on error, 2 when found already detected PnP card */ |
|
static int el3_isa_id_sequence(__be16 *phys_addr) |
|
{ |
|
short lrs_state = 0xff; |
|
int i; |
|
|
|
/* ISA boards are detected by sending the ID sequence to the |
|
ID_PORT. We find cards past the first by setting the 'current_tag' |
|
on cards as they are found. Cards with their tag set will not |
|
respond to subsequent ID sequences. */ |
|
|
|
outb(0x00, id_port); |
|
outb(0x00, id_port); |
|
for (i = 0; i < 255; i++) { |
|
outb(lrs_state, id_port); |
|
lrs_state <<= 1; |
|
lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state; |
|
} |
|
/* For the first probe, clear all board's tag registers. */ |
|
if (current_tag == 0) |
|
outb(0xd0, id_port); |
|
else /* Otherwise kill off already-found boards. */ |
|
outb(0xd8, id_port); |
|
if (id_read_eeprom(7) != 0x6d50) |
|
return 1; |
|
/* Read in EEPROM data, which does contention-select. |
|
Only the lowest address board will stay "on-line". |
|
3Com got the byte order backwards. */ |
|
for (i = 0; i < 3; i++) |
|
phys_addr[i] = htons(id_read_eeprom(i)); |
|
#ifdef CONFIG_PNP |
|
if (!nopnp) { |
|
/* The ISA PnP 3c509 cards respond to the ID sequence too. |
|
This check is needed in order not to register them twice. */ |
|
for (i = 0; i < el3_cards; i++) { |
|
struct el3_private *lp = netdev_priv(el3_devs[i]); |
|
if (lp->type == EL3_PNP && |
|
ether_addr_equal((u8 *)phys_addr, el3_devs[i]->dev_addr)) { |
|
if (el3_debug > 3) |
|
pr_debug("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n", |
|
phys_addr[0] & 0xff, phys_addr[0] >> 8, |
|
phys_addr[1] & 0xff, phys_addr[1] >> 8, |
|
phys_addr[2] & 0xff, phys_addr[2] >> 8); |
|
/* Set the adaptor tag so that the next card can be found. */ |
|
outb(0xd0 + ++current_tag, id_port); |
|
return 2; |
|
} |
|
} |
|
} |
|
#endif /* CONFIG_PNP */ |
|
return 0; |
|
|
|
} |
|
|
|
static void el3_dev_fill(struct net_device *dev, __be16 *phys_addr, int ioaddr, |
|
int irq, int if_port, enum el3_cardtype type) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
|
|
memcpy(dev->dev_addr, phys_addr, ETH_ALEN); |
|
dev->base_addr = ioaddr; |
|
dev->irq = irq; |
|
dev->if_port = if_port; |
|
lp->type = type; |
|
} |
|
|
|
static int el3_isa_match(struct device *pdev, unsigned int ndev) |
|
{ |
|
struct net_device *dev; |
|
int ioaddr, isa_irq, if_port, err; |
|
unsigned int iobase; |
|
__be16 phys_addr[3]; |
|
|
|
while ((err = el3_isa_id_sequence(phys_addr)) == 2) |
|
; /* Skip to next card when PnP card found */ |
|
if (err == 1) |
|
return 0; |
|
|
|
iobase = id_read_eeprom(8); |
|
if_port = iobase >> 14; |
|
ioaddr = 0x200 + ((iobase & 0x1f) << 4); |
|
if (irq[el3_cards] > 1 && irq[el3_cards] < 16) |
|
isa_irq = irq[el3_cards]; |
|
else |
|
isa_irq = id_read_eeprom(9) >> 12; |
|
|
|
dev = alloc_etherdev(sizeof(struct el3_private)); |
|
if (!dev) |
|
return -ENOMEM; |
|
|
|
SET_NETDEV_DEV(dev, pdev); |
|
netdev_boot_setup_check(dev); |
|
|
|
if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-isa")) { |
|
free_netdev(dev); |
|
return 0; |
|
} |
|
|
|
/* Set the adaptor tag so that the next card can be found. */ |
|
outb(0xd0 + ++current_tag, id_port); |
|
|
|
/* Activate the adaptor at the EEPROM location. */ |
|
outb((ioaddr >> 4) | 0xe0, id_port); |
|
|
|
EL3WINDOW(0); |
|
if (inw(ioaddr) != 0x6d50) { |
|
free_netdev(dev); |
|
return 0; |
|
} |
|
|
|
/* Free the interrupt so that some other card can use it. */ |
|
outw(0x0f00, ioaddr + WN0_IRQ); |
|
|
|
el3_dev_fill(dev, phys_addr, ioaddr, isa_irq, if_port, EL3_ISA); |
|
dev_set_drvdata(pdev, dev); |
|
if (el3_common_init(dev)) { |
|
free_netdev(dev); |
|
return 0; |
|
} |
|
|
|
el3_devs[el3_cards++] = dev; |
|
return 1; |
|
} |
|
|
|
static void el3_isa_remove(struct device *pdev, |
|
unsigned int ndev) |
|
{ |
|
el3_device_remove(pdev); |
|
dev_set_drvdata(pdev, NULL); |
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int el3_isa_suspend(struct device *dev, unsigned int n, |
|
pm_message_t state) |
|
{ |
|
current_tag = 0; |
|
return el3_suspend(dev, state); |
|
} |
|
|
|
static int el3_isa_resume(struct device *dev, unsigned int n) |
|
{ |
|
struct net_device *ndev = dev_get_drvdata(dev); |
|
int ioaddr = ndev->base_addr, err; |
|
__be16 phys_addr[3]; |
|
|
|
while ((err = el3_isa_id_sequence(phys_addr)) == 2) |
|
; /* Skip to next card when PnP card found */ |
|
if (err == 1) |
|
return 0; |
|
/* Set the adaptor tag so that the next card can be found. */ |
|
outb(0xd0 + ++current_tag, id_port); |
|
/* Enable the card */ |
|
outb((ioaddr >> 4) | 0xe0, id_port); |
|
EL3WINDOW(0); |
|
if (inw(ioaddr) != 0x6d50) |
|
return 1; |
|
/* Free the interrupt so that some other card can use it. */ |
|
outw(0x0f00, ioaddr + WN0_IRQ); |
|
return el3_resume(dev); |
|
} |
|
#endif |
|
|
|
static struct isa_driver el3_isa_driver = { |
|
.match = el3_isa_match, |
|
.remove = el3_isa_remove, |
|
#ifdef CONFIG_PM |
|
.suspend = el3_isa_suspend, |
|
.resume = el3_isa_resume, |
|
#endif |
|
.driver = { |
|
.name = "3c509" |
|
}, |
|
}; |
|
static int isa_registered; |
|
|
|
#ifdef CONFIG_PNP |
|
static const struct pnp_device_id el3_pnp_ids[] = { |
|
{ .id = "TCM5090" }, /* 3Com Etherlink III (TP) */ |
|
{ .id = "TCM5091" }, /* 3Com Etherlink III */ |
|
{ .id = "TCM5094" }, /* 3Com Etherlink III (combo) */ |
|
{ .id = "TCM5095" }, /* 3Com Etherlink III (TPO) */ |
|
{ .id = "TCM5098" }, /* 3Com Etherlink III (TPC) */ |
|
{ .id = "PNP80f7" }, /* 3Com Etherlink III compatible */ |
|
{ .id = "PNP80f8" }, /* 3Com Etherlink III compatible */ |
|
{ .id = "" } |
|
}; |
|
MODULE_DEVICE_TABLE(pnp, el3_pnp_ids); |
|
|
|
static int el3_pnp_probe(struct pnp_dev *pdev, const struct pnp_device_id *id) |
|
{ |
|
short i; |
|
int ioaddr, irq, if_port; |
|
__be16 phys_addr[3]; |
|
struct net_device *dev = NULL; |
|
int err; |
|
|
|
ioaddr = pnp_port_start(pdev, 0); |
|
if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509-pnp")) |
|
return -EBUSY; |
|
irq = pnp_irq(pdev, 0); |
|
EL3WINDOW(0); |
|
for (i = 0; i < 3; i++) |
|
phys_addr[i] = htons(read_eeprom(ioaddr, i)); |
|
if_port = read_eeprom(ioaddr, 8) >> 14; |
|
dev = alloc_etherdev(sizeof(struct el3_private)); |
|
if (!dev) { |
|
release_region(ioaddr, EL3_IO_EXTENT); |
|
return -ENOMEM; |
|
} |
|
SET_NETDEV_DEV(dev, &pdev->dev); |
|
netdev_boot_setup_check(dev); |
|
|
|
el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_PNP); |
|
pnp_set_drvdata(pdev, dev); |
|
err = el3_common_init(dev); |
|
|
|
if (err) { |
|
pnp_set_drvdata(pdev, NULL); |
|
free_netdev(dev); |
|
return err; |
|
} |
|
|
|
el3_devs[el3_cards++] = dev; |
|
return 0; |
|
} |
|
|
|
static void el3_pnp_remove(struct pnp_dev *pdev) |
|
{ |
|
el3_common_remove(pnp_get_drvdata(pdev)); |
|
pnp_set_drvdata(pdev, NULL); |
|
} |
|
|
|
#ifdef CONFIG_PM |
|
static int el3_pnp_suspend(struct pnp_dev *pdev, pm_message_t state) |
|
{ |
|
return el3_suspend(&pdev->dev, state); |
|
} |
|
|
|
static int el3_pnp_resume(struct pnp_dev *pdev) |
|
{ |
|
return el3_resume(&pdev->dev); |
|
} |
|
#endif |
|
|
|
static struct pnp_driver el3_pnp_driver = { |
|
.name = "3c509", |
|
.id_table = el3_pnp_ids, |
|
.probe = el3_pnp_probe, |
|
.remove = el3_pnp_remove, |
|
#ifdef CONFIG_PM |
|
.suspend = el3_pnp_suspend, |
|
.resume = el3_pnp_resume, |
|
#endif |
|
}; |
|
static int pnp_registered; |
|
#endif /* CONFIG_PNP */ |
|
|
|
#ifdef CONFIG_EISA |
|
static const struct eisa_device_id el3_eisa_ids[] = { |
|
{ "TCM5090" }, |
|
{ "TCM5091" }, |
|
{ "TCM5092" }, |
|
{ "TCM5093" }, |
|
{ "TCM5094" }, |
|
{ "TCM5095" }, |
|
{ "TCM5098" }, |
|
{ "" } |
|
}; |
|
MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); |
|
|
|
static int el3_eisa_probe (struct device *device); |
|
|
|
static struct eisa_driver el3_eisa_driver = { |
|
.id_table = el3_eisa_ids, |
|
.driver = { |
|
.name = "3c579", |
|
.probe = el3_eisa_probe, |
|
.remove = el3_device_remove, |
|
.suspend = el3_suspend, |
|
.resume = el3_resume, |
|
} |
|
}; |
|
static int eisa_registered; |
|
#endif |
|
|
|
static const struct net_device_ops netdev_ops = { |
|
.ndo_open = el3_open, |
|
.ndo_stop = el3_close, |
|
.ndo_start_xmit = el3_start_xmit, |
|
.ndo_get_stats = el3_get_stats, |
|
.ndo_set_rx_mode = set_multicast_list, |
|
.ndo_tx_timeout = el3_tx_timeout, |
|
.ndo_set_mac_address = eth_mac_addr, |
|
.ndo_validate_addr = eth_validate_addr, |
|
#ifdef CONFIG_NET_POLL_CONTROLLER |
|
.ndo_poll_controller = el3_poll_controller, |
|
#endif |
|
}; |
|
|
|
static int el3_common_init(struct net_device *dev) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
int err; |
|
const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"}; |
|
|
|
spin_lock_init(&lp->lock); |
|
|
|
if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */ |
|
dev->if_port = (dev->mem_start & 0x0f); |
|
} else { /* xcvr codes 0/8 */ |
|
/* use eeprom value, but save user's full-duplex selection */ |
|
dev->if_port |= (dev->mem_start & 0x08); |
|
} |
|
|
|
/* The EL3-specific entries in the device structure. */ |
|
dev->netdev_ops = &netdev_ops; |
|
dev->watchdog_timeo = TX_TIMEOUT; |
|
dev->ethtool_ops = ðtool_ops; |
|
|
|
err = register_netdev(dev); |
|
if (err) { |
|
pr_err("Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n", |
|
dev->base_addr, dev->irq); |
|
release_region(dev->base_addr, EL3_IO_EXTENT); |
|
return err; |
|
} |
|
|
|
pr_info("%s: 3c5x9 found at %#3.3lx, %s port, address %pM, IRQ %d.\n", |
|
dev->name, dev->base_addr, if_names[(dev->if_port & 0x03)], |
|
dev->dev_addr, dev->irq); |
|
|
|
return 0; |
|
|
|
} |
|
|
|
static void el3_common_remove (struct net_device *dev) |
|
{ |
|
unregister_netdev (dev); |
|
release_region(dev->base_addr, EL3_IO_EXTENT); |
|
free_netdev (dev); |
|
} |
|
|
|
#ifdef CONFIG_EISA |
|
static int el3_eisa_probe(struct device *device) |
|
{ |
|
short i; |
|
int ioaddr, irq, if_port; |
|
__be16 phys_addr[3]; |
|
struct net_device *dev = NULL; |
|
struct eisa_device *edev; |
|
int err; |
|
|
|
/* Yeepee, The driver framework is calling us ! */ |
|
edev = to_eisa_device (device); |
|
ioaddr = edev->base_addr; |
|
|
|
if (!request_region(ioaddr, EL3_IO_EXTENT, "3c579-eisa")) |
|
return -EBUSY; |
|
|
|
/* Change the register set to the configuration window 0. */ |
|
outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD); |
|
|
|
irq = inw(ioaddr + WN0_IRQ) >> 12; |
|
if_port = inw(ioaddr + 6)>>14; |
|
for (i = 0; i < 3; i++) |
|
phys_addr[i] = htons(read_eeprom(ioaddr, i)); |
|
|
|
/* Restore the "Product ID" to the EEPROM read register. */ |
|
read_eeprom(ioaddr, 3); |
|
|
|
dev = alloc_etherdev(sizeof (struct el3_private)); |
|
if (dev == NULL) { |
|
release_region(ioaddr, EL3_IO_EXTENT); |
|
return -ENOMEM; |
|
} |
|
|
|
SET_NETDEV_DEV(dev, device); |
|
netdev_boot_setup_check(dev); |
|
|
|
el3_dev_fill(dev, phys_addr, ioaddr, irq, if_port, EL3_EISA); |
|
eisa_set_drvdata (edev, dev); |
|
err = el3_common_init(dev); |
|
|
|
if (err) { |
|
eisa_set_drvdata (edev, NULL); |
|
free_netdev(dev); |
|
return err; |
|
} |
|
|
|
el3_devs[el3_cards++] = dev; |
|
return 0; |
|
} |
|
#endif |
|
|
|
/* This remove works for all device types. |
|
* |
|
* The net dev must be stored in the driver data field */ |
|
static int el3_device_remove(struct device *device) |
|
{ |
|
struct net_device *dev; |
|
|
|
dev = dev_get_drvdata(device); |
|
|
|
el3_common_remove (dev); |
|
return 0; |
|
} |
|
|
|
/* Read a word from the EEPROM using the regular EEPROM access register. |
|
Assume that we are in register window zero. |
|
*/ |
|
static ushort read_eeprom(int ioaddr, int index) |
|
{ |
|
outw(EEPROM_READ + index, ioaddr + 10); |
|
/* Pause for at least 162 us. for the read to take place. |
|
Some chips seem to require much longer */ |
|
mdelay(2); |
|
return inw(ioaddr + 12); |
|
} |
|
|
|
/* Read a word from the EEPROM when in the ISA ID probe state. */ |
|
static ushort id_read_eeprom(int index) |
|
{ |
|
int bit, word = 0; |
|
|
|
/* Issue read command, and pause for at least 162 us. for it to complete. |
|
Assume extra-fast 16Mhz bus. */ |
|
outb(EEPROM_READ + index, id_port); |
|
|
|
/* Pause for at least 162 us. for the read to take place. */ |
|
/* Some chips seem to require much longer */ |
|
mdelay(4); |
|
|
|
for (bit = 15; bit >= 0; bit--) |
|
word = (word << 1) + (inb(id_port) & 0x01); |
|
|
|
if (el3_debug > 3) |
|
pr_debug(" 3c509 EEPROM word %d %#4.4x.\n", index, word); |
|
|
|
return word; |
|
} |
|
|
|
|
|
static int |
|
el3_open(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
int i; |
|
|
|
outw(TxReset, ioaddr + EL3_CMD); |
|
outw(RxReset, ioaddr + EL3_CMD); |
|
outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); |
|
|
|
i = request_irq(dev->irq, el3_interrupt, 0, dev->name, dev); |
|
if (i) |
|
return i; |
|
|
|
EL3WINDOW(0); |
|
if (el3_debug > 3) |
|
pr_debug("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name, |
|
dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS)); |
|
|
|
el3_up(dev); |
|
|
|
if (el3_debug > 3) |
|
pr_debug("%s: Opened 3c509 IRQ %d status %4.4x.\n", |
|
dev->name, dev->irq, inw(ioaddr + EL3_STATUS)); |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
el3_tx_timeout (struct net_device *dev, unsigned int txqueue) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
|
|
/* Transmitter timeout, serious problems. */ |
|
pr_warn("%s: transmit timed out, Tx_status %2.2x status %4.4x Tx FIFO room %d\n", |
|
dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS), |
|
inw(ioaddr + TX_FREE)); |
|
dev->stats.tx_errors++; |
|
netif_trans_update(dev); /* prevent tx timeout */ |
|
/* Issue TX_RESET and TX_START commands. */ |
|
outw(TxReset, ioaddr + EL3_CMD); |
|
outw(TxEnable, ioaddr + EL3_CMD); |
|
netif_wake_queue(dev); |
|
} |
|
|
|
|
|
static netdev_tx_t |
|
el3_start_xmit(struct sk_buff *skb, struct net_device *dev) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
int ioaddr = dev->base_addr; |
|
unsigned long flags; |
|
|
|
netif_stop_queue (dev); |
|
|
|
dev->stats.tx_bytes += skb->len; |
|
|
|
if (el3_debug > 4) { |
|
pr_debug("%s: el3_start_xmit(length = %u) called, status %4.4x.\n", |
|
dev->name, skb->len, inw(ioaddr + EL3_STATUS)); |
|
} |
|
/* |
|
* We lock the driver against other processors. Note |
|
* we don't need to lock versus the IRQ as we suspended |
|
* that. This means that we lose the ability to take |
|
* an RX during a TX upload. That sucks a bit with SMP |
|
* on an original 3c509 (2K buffer) |
|
* |
|
* Using disable_irq stops us crapping on other |
|
* time sensitive devices. |
|
*/ |
|
|
|
spin_lock_irqsave(&lp->lock, flags); |
|
|
|
/* Put out the doubleword header... */ |
|
outw(skb->len, ioaddr + TX_FIFO); |
|
outw(0x00, ioaddr + TX_FIFO); |
|
/* ... and the packet rounded to a doubleword. */ |
|
outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); |
|
|
|
if (inw(ioaddr + TX_FREE) > 1536) |
|
netif_start_queue(dev); |
|
else |
|
/* Interrupt us when the FIFO has room for max-sized packet. */ |
|
outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); |
|
|
|
spin_unlock_irqrestore(&lp->lock, flags); |
|
|
|
dev_consume_skb_any (skb); |
|
|
|
/* Clear the Tx status stack. */ |
|
{ |
|
short tx_status; |
|
int i = 4; |
|
|
|
while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { |
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
|
if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
|
if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); |
|
outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ |
|
} |
|
} |
|
return NETDEV_TX_OK; |
|
} |
|
|
|
/* The EL3 interrupt handler. */ |
|
static irqreturn_t |
|
el3_interrupt(int irq, void *dev_id) |
|
{ |
|
struct net_device *dev = dev_id; |
|
struct el3_private *lp; |
|
int ioaddr, status; |
|
int i = max_interrupt_work; |
|
|
|
lp = netdev_priv(dev); |
|
spin_lock(&lp->lock); |
|
|
|
ioaddr = dev->base_addr; |
|
|
|
if (el3_debug > 4) { |
|
status = inw(ioaddr + EL3_STATUS); |
|
pr_debug("%s: interrupt, status %4.4x.\n", dev->name, status); |
|
} |
|
|
|
while ((status = inw(ioaddr + EL3_STATUS)) & |
|
(IntLatch | RxComplete | StatsFull)) { |
|
|
|
if (status & RxComplete) |
|
el3_rx(dev); |
|
|
|
if (status & TxAvailable) { |
|
if (el3_debug > 5) |
|
pr_debug(" TX room bit was handled.\n"); |
|
/* There's room in the FIFO for a full-sized packet. */ |
|
outw(AckIntr | TxAvailable, ioaddr + EL3_CMD); |
|
netif_wake_queue (dev); |
|
} |
|
if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) { |
|
/* Handle all uncommon interrupts. */ |
|
if (status & StatsFull) /* Empty statistics. */ |
|
update_stats(dev); |
|
if (status & RxEarly) { /* Rx early is unused. */ |
|
el3_rx(dev); |
|
outw(AckIntr | RxEarly, ioaddr + EL3_CMD); |
|
} |
|
if (status & TxComplete) { /* Really Tx error. */ |
|
short tx_status; |
|
int i = 4; |
|
|
|
while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { |
|
if (tx_status & 0x38) dev->stats.tx_aborted_errors++; |
|
if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD); |
|
if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD); |
|
outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ |
|
} |
|
} |
|
if (status & AdapterFailure) { |
|
/* Adapter failure requires Rx reset and reinit. */ |
|
outw(RxReset, ioaddr + EL3_CMD); |
|
/* Set the Rx filter to the current state. */ |
|
outw(SetRxFilter | RxStation | RxBroadcast |
|
| (dev->flags & IFF_ALLMULTI ? RxMulticast : 0) |
|
| (dev->flags & IFF_PROMISC ? RxProm : 0), |
|
ioaddr + EL3_CMD); |
|
outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */ |
|
outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); |
|
} |
|
} |
|
|
|
if (--i < 0) { |
|
pr_err("%s: Infinite loop in interrupt, status %4.4x.\n", |
|
dev->name, status); |
|
/* Clear all interrupts. */ |
|
outw(AckIntr | 0xFF, ioaddr + EL3_CMD); |
|
break; |
|
} |
|
/* Acknowledge the IRQ. */ |
|
outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */ |
|
} |
|
|
|
if (el3_debug > 4) { |
|
pr_debug("%s: exiting interrupt, status %4.4x.\n", dev->name, |
|
inw(ioaddr + EL3_STATUS)); |
|
} |
|
spin_unlock(&lp->lock); |
|
return IRQ_HANDLED; |
|
} |
|
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER |
|
/* |
|
* Polling receive - used by netconsole and other diagnostic tools |
|
* to allow network i/o with interrupts disabled. |
|
*/ |
|
static void el3_poll_controller(struct net_device *dev) |
|
{ |
|
disable_irq(dev->irq); |
|
el3_interrupt(dev->irq, dev); |
|
enable_irq(dev->irq); |
|
} |
|
#endif |
|
|
|
static struct net_device_stats * |
|
el3_get_stats(struct net_device *dev) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
unsigned long flags; |
|
|
|
/* |
|
* This is fast enough not to bother with disable IRQ |
|
* stuff. |
|
*/ |
|
|
|
spin_lock_irqsave(&lp->lock, flags); |
|
update_stats(dev); |
|
spin_unlock_irqrestore(&lp->lock, flags); |
|
return &dev->stats; |
|
} |
|
|
|
/* Update statistics. We change to register window 6, so this should be run |
|
single-threaded if the device is active. This is expected to be a rare |
|
operation, and it's simpler for the rest of the driver to assume that |
|
window 1 is always valid rather than use a special window-state variable. |
|
*/ |
|
static void update_stats(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
|
|
if (el3_debug > 5) |
|
pr_debug(" Updating the statistics.\n"); |
|
/* Turn off statistics updates while reading. */ |
|
outw(StatsDisable, ioaddr + EL3_CMD); |
|
/* Switch to the stats window, and read everything. */ |
|
EL3WINDOW(6); |
|
dev->stats.tx_carrier_errors += inb(ioaddr + 0); |
|
dev->stats.tx_heartbeat_errors += inb(ioaddr + 1); |
|
/* Multiple collisions. */ inb(ioaddr + 2); |
|
dev->stats.collisions += inb(ioaddr + 3); |
|
dev->stats.tx_window_errors += inb(ioaddr + 4); |
|
dev->stats.rx_fifo_errors += inb(ioaddr + 5); |
|
dev->stats.tx_packets += inb(ioaddr + 6); |
|
/* Rx packets */ inb(ioaddr + 7); |
|
/* Tx deferrals */ inb(ioaddr + 8); |
|
inw(ioaddr + 10); /* Total Rx and Tx octets. */ |
|
inw(ioaddr + 12); |
|
|
|
/* Back to window 1, and turn statistics back on. */ |
|
EL3WINDOW(1); |
|
outw(StatsEnable, ioaddr + EL3_CMD); |
|
} |
|
|
|
static int |
|
el3_rx(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
short rx_status; |
|
|
|
if (el3_debug > 5) |
|
pr_debug(" In rx_packet(), status %4.4x, rx_status %4.4x.\n", |
|
inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS)); |
|
while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) { |
|
if (rx_status & 0x4000) { /* Error, update stats. */ |
|
short error = rx_status & 0x3800; |
|
|
|
outw(RxDiscard, ioaddr + EL3_CMD); |
|
dev->stats.rx_errors++; |
|
switch (error) { |
|
case 0x0000: dev->stats.rx_over_errors++; break; |
|
case 0x0800: dev->stats.rx_length_errors++; break; |
|
case 0x1000: dev->stats.rx_frame_errors++; break; |
|
case 0x1800: dev->stats.rx_length_errors++; break; |
|
case 0x2000: dev->stats.rx_frame_errors++; break; |
|
case 0x2800: dev->stats.rx_crc_errors++; break; |
|
} |
|
} else { |
|
short pkt_len = rx_status & 0x7ff; |
|
struct sk_buff *skb; |
|
|
|
skb = netdev_alloc_skb(dev, pkt_len + 5); |
|
if (el3_debug > 4) |
|
pr_debug("Receiving packet size %d status %4.4x.\n", |
|
pkt_len, rx_status); |
|
if (skb != NULL) { |
|
skb_reserve(skb, 2); /* Align IP on 16 byte */ |
|
|
|
/* 'skb->data' points to the start of sk_buff data area. */ |
|
insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len), |
|
(pkt_len + 3) >> 2); |
|
|
|
outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ |
|
skb->protocol = eth_type_trans(skb,dev); |
|
netif_rx(skb); |
|
dev->stats.rx_bytes += pkt_len; |
|
dev->stats.rx_packets++; |
|
continue; |
|
} |
|
outw(RxDiscard, ioaddr + EL3_CMD); |
|
dev->stats.rx_dropped++; |
|
if (el3_debug) |
|
pr_debug("%s: Couldn't allocate a sk_buff of size %d.\n", |
|
dev->name, pkt_len); |
|
} |
|
inw(ioaddr + EL3_STATUS); /* Delay. */ |
|
while (inw(ioaddr + EL3_STATUS) & 0x1000) |
|
pr_debug(" Waiting for 3c509 to discard packet, status %x.\n", |
|
inw(ioaddr + EL3_STATUS) ); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* Set or clear the multicast filter for this adaptor. |
|
*/ |
|
static void |
|
set_multicast_list(struct net_device *dev) |
|
{ |
|
unsigned long flags; |
|
struct el3_private *lp = netdev_priv(dev); |
|
int ioaddr = dev->base_addr; |
|
int mc_count = netdev_mc_count(dev); |
|
|
|
if (el3_debug > 1) { |
|
static int old; |
|
if (old != mc_count) { |
|
old = mc_count; |
|
pr_debug("%s: Setting Rx mode to %d addresses.\n", |
|
dev->name, mc_count); |
|
} |
|
} |
|
spin_lock_irqsave(&lp->lock, flags); |
|
if (dev->flags&IFF_PROMISC) { |
|
outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, |
|
ioaddr + EL3_CMD); |
|
} |
|
else if (mc_count || (dev->flags&IFF_ALLMULTI)) { |
|
outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD); |
|
} |
|
else |
|
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); |
|
spin_unlock_irqrestore(&lp->lock, flags); |
|
} |
|
|
|
static int |
|
el3_close(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
struct el3_private *lp = netdev_priv(dev); |
|
|
|
if (el3_debug > 2) |
|
pr_debug("%s: Shutting down ethercard.\n", dev->name); |
|
|
|
el3_down(dev); |
|
|
|
free_irq(dev->irq, dev); |
|
/* Switching back to window 0 disables the IRQ. */ |
|
EL3WINDOW(0); |
|
if (lp->type != EL3_EISA) { |
|
/* But we explicitly zero the IRQ line select anyway. Don't do |
|
* it on EISA cards, it prevents the module from getting an |
|
* IRQ after unload+reload... */ |
|
outw(0x0f00, ioaddr + WN0_IRQ); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
el3_link_ok(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
u16 tmp; |
|
|
|
EL3WINDOW(4); |
|
tmp = inw(ioaddr + WN4_MEDIA); |
|
EL3WINDOW(1); |
|
return tmp & (1<<11); |
|
} |
|
|
|
static void |
|
el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_link_ksettings *cmd) |
|
{ |
|
u16 tmp; |
|
int ioaddr = dev->base_addr; |
|
u32 supported; |
|
|
|
EL3WINDOW(0); |
|
/* obtain current transceiver via WN4_MEDIA? */ |
|
tmp = inw(ioaddr + WN0_ADDR_CONF); |
|
switch (tmp >> 14) { |
|
case 0: |
|
cmd->base.port = PORT_TP; |
|
break; |
|
case 1: |
|
cmd->base.port = PORT_AUI; |
|
break; |
|
case 3: |
|
cmd->base.port = PORT_BNC; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
cmd->base.duplex = DUPLEX_HALF; |
|
supported = 0; |
|
tmp = inw(ioaddr + WN0_CONF_CTRL); |
|
if (tmp & (1<<13)) |
|
supported |= SUPPORTED_AUI; |
|
if (tmp & (1<<12)) |
|
supported |= SUPPORTED_BNC; |
|
if (tmp & (1<<9)) { |
|
supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | |
|
SUPPORTED_10baseT_Full; /* hmm... */ |
|
EL3WINDOW(4); |
|
tmp = inw(ioaddr + WN4_NETDIAG); |
|
if (tmp & FD_ENABLE) |
|
cmd->base.duplex = DUPLEX_FULL; |
|
} |
|
|
|
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, |
|
supported); |
|
cmd->base.speed = SPEED_10; |
|
EL3WINDOW(1); |
|
} |
|
|
|
static int |
|
el3_netdev_set_ecmd(struct net_device *dev, |
|
const struct ethtool_link_ksettings *cmd) |
|
{ |
|
u16 tmp; |
|
int ioaddr = dev->base_addr; |
|
|
|
if (cmd->base.speed != SPEED_10) |
|
return -EINVAL; |
|
if ((cmd->base.duplex != DUPLEX_HALF) && |
|
(cmd->base.duplex != DUPLEX_FULL)) |
|
return -EINVAL; |
|
|
|
/* change XCVR type */ |
|
EL3WINDOW(0); |
|
tmp = inw(ioaddr + WN0_ADDR_CONF); |
|
switch (cmd->base.port) { |
|
case PORT_TP: |
|
tmp &= ~(3<<14); |
|
dev->if_port = 0; |
|
break; |
|
case PORT_AUI: |
|
tmp |= (1<<14); |
|
dev->if_port = 1; |
|
break; |
|
case PORT_BNC: |
|
tmp |= (3<<14); |
|
dev->if_port = 3; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
outw(tmp, ioaddr + WN0_ADDR_CONF); |
|
if (dev->if_port == 3) { |
|
/* fire up the DC-DC convertor if BNC gets enabled */ |
|
tmp = inw(ioaddr + WN0_ADDR_CONF); |
|
if (tmp & (3 << 14)) { |
|
outw(StartCoax, ioaddr + EL3_CMD); |
|
udelay(800); |
|
} else |
|
return -EIO; |
|
} |
|
|
|
EL3WINDOW(4); |
|
tmp = inw(ioaddr + WN4_NETDIAG); |
|
if (cmd->base.duplex == DUPLEX_FULL) |
|
tmp |= FD_ENABLE; |
|
else |
|
tmp &= ~FD_ENABLE; |
|
outw(tmp, ioaddr + WN4_NETDIAG); |
|
EL3WINDOW(1); |
|
|
|
return 0; |
|
} |
|
|
|
static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
|
{ |
|
strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
|
} |
|
|
|
static int el3_get_link_ksettings(struct net_device *dev, |
|
struct ethtool_link_ksettings *cmd) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
|
|
spin_lock_irq(&lp->lock); |
|
el3_netdev_get_ecmd(dev, cmd); |
|
spin_unlock_irq(&lp->lock); |
|
return 0; |
|
} |
|
|
|
static int el3_set_link_ksettings(struct net_device *dev, |
|
const struct ethtool_link_ksettings *cmd) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
int ret; |
|
|
|
spin_lock_irq(&lp->lock); |
|
ret = el3_netdev_set_ecmd(dev, cmd); |
|
spin_unlock_irq(&lp->lock); |
|
return ret; |
|
} |
|
|
|
static u32 el3_get_link(struct net_device *dev) |
|
{ |
|
struct el3_private *lp = netdev_priv(dev); |
|
u32 ret; |
|
|
|
spin_lock_irq(&lp->lock); |
|
ret = el3_link_ok(dev); |
|
spin_unlock_irq(&lp->lock); |
|
return ret; |
|
} |
|
|
|
static u32 el3_get_msglevel(struct net_device *dev) |
|
{ |
|
return el3_debug; |
|
} |
|
|
|
static void el3_set_msglevel(struct net_device *dev, u32 v) |
|
{ |
|
el3_debug = v; |
|
} |
|
|
|
static const struct ethtool_ops ethtool_ops = { |
|
.get_drvinfo = el3_get_drvinfo, |
|
.get_link = el3_get_link, |
|
.get_msglevel = el3_get_msglevel, |
|
.set_msglevel = el3_set_msglevel, |
|
.get_link_ksettings = el3_get_link_ksettings, |
|
.set_link_ksettings = el3_set_link_ksettings, |
|
}; |
|
|
|
static void |
|
el3_down(struct net_device *dev) |
|
{ |
|
int ioaddr = dev->base_addr; |
|
|
|
netif_stop_queue(dev); |
|
|
|
/* Turn off statistics ASAP. We update lp->stats below. */ |
|
outw(StatsDisable, ioaddr + EL3_CMD); |
|
|
|
/* Disable the receiver and transmitter. */ |
|
outw(RxDisable, ioaddr + EL3_CMD); |
|
outw(TxDisable, ioaddr + EL3_CMD); |
|
|
|
if (dev->if_port == 3) |
|
/* Turn off thinnet power. Green! */ |
|
outw(StopCoax, ioaddr + EL3_CMD); |
|
else if (dev->if_port == 0) { |
|
/* Disable link beat and jabber, if_port may change here next open(). */ |
|
EL3WINDOW(4); |
|
outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA); |
|
} |
|
|
|
outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD); |
|
|
|
update_stats(dev); |
|
} |
|
|
|
static void |
|
el3_up(struct net_device *dev) |
|
{ |
|
int i, sw_info, net_diag; |
|
int ioaddr = dev->base_addr; |
|
|
|
/* Activating the board required and does no harm otherwise */ |
|
outw(0x0001, ioaddr + 4); |
|
|
|
/* Set the IRQ line. */ |
|
outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ); |
|
|
|
/* Set the station address in window 2 each time opened. */ |
|
EL3WINDOW(2); |
|
|
|
for (i = 0; i < 6; i++) |
|
outb(dev->dev_addr[i], ioaddr + i); |
|
|
|
if ((dev->if_port & 0x03) == 3) /* BNC interface */ |
|
/* Start the thinnet transceiver. We should really wait 50ms...*/ |
|
outw(StartCoax, ioaddr + EL3_CMD); |
|
else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */ |
|
/* Combine secondary sw_info word (the adapter level) and primary |
|
sw_info word (duplex setting plus other useless bits) */ |
|
EL3WINDOW(0); |
|
sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) | |
|
(read_eeprom(ioaddr, 0x0d) & 0xBff0); |
|
|
|
EL3WINDOW(4); |
|
net_diag = inw(ioaddr + WN4_NETDIAG); |
|
net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */ |
|
pr_info("%s: ", dev->name); |
|
switch (dev->if_port & 0x0c) { |
|
case 12: |
|
/* force full-duplex mode if 3c5x9b */ |
|
if (sw_info & 0x000f) { |
|
pr_cont("Forcing 3c5x9b full-duplex mode"); |
|
break; |
|
} |
|
fallthrough; |
|
case 8: |
|
/* set full-duplex mode based on eeprom config setting */ |
|
if ((sw_info & 0x000f) && (sw_info & 0x8000)) { |
|
pr_cont("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)"); |
|
break; |
|
} |
|
fallthrough; |
|
default: |
|
/* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */ |
|
pr_cont("Setting 3c5x9/3c5x9B half-duplex mode"); |
|
net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */ |
|
} |
|
|
|
outw(net_diag, ioaddr + WN4_NETDIAG); |
|
pr_cont(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info); |
|
if (el3_debug > 3) |
|
pr_debug("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag); |
|
/* Enable link beat and jabber check. */ |
|
outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA); |
|
} |
|
|
|
/* Switch to the stats window, and clear all stats by reading. */ |
|
outw(StatsDisable, ioaddr + EL3_CMD); |
|
EL3WINDOW(6); |
|
for (i = 0; i < 9; i++) |
|
inb(ioaddr + i); |
|
inw(ioaddr + 10); |
|
inw(ioaddr + 12); |
|
|
|
/* Switch to register set 1 for normal use. */ |
|
EL3WINDOW(1); |
|
|
|
/* Accept b-case and phys addr only. */ |
|
outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD); |
|
outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */ |
|
|
|
outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */ |
|
outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */ |
|
/* Allow status bits to be seen. */ |
|
outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); |
|
/* Ack all pending events, and set active indicator mask. */ |
|
outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, |
|
ioaddr + EL3_CMD); |
|
outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull, |
|
ioaddr + EL3_CMD); |
|
|
|
netif_start_queue(dev); |
|
} |
|
|
|
/* Power Management support functions */ |
|
#ifdef CONFIG_PM |
|
|
|
static int |
|
el3_suspend(struct device *pdev, pm_message_t state) |
|
{ |
|
unsigned long flags; |
|
struct net_device *dev; |
|
struct el3_private *lp; |
|
int ioaddr; |
|
|
|
dev = dev_get_drvdata(pdev); |
|
lp = netdev_priv(dev); |
|
ioaddr = dev->base_addr; |
|
|
|
spin_lock_irqsave(&lp->lock, flags); |
|
|
|
if (netif_running(dev)) |
|
netif_device_detach(dev); |
|
|
|
el3_down(dev); |
|
outw(PowerDown, ioaddr + EL3_CMD); |
|
|
|
spin_unlock_irqrestore(&lp->lock, flags); |
|
return 0; |
|
} |
|
|
|
static int |
|
el3_resume(struct device *pdev) |
|
{ |
|
unsigned long flags; |
|
struct net_device *dev; |
|
struct el3_private *lp; |
|
int ioaddr; |
|
|
|
dev = dev_get_drvdata(pdev); |
|
lp = netdev_priv(dev); |
|
ioaddr = dev->base_addr; |
|
|
|
spin_lock_irqsave(&lp->lock, flags); |
|
|
|
outw(PowerUp, ioaddr + EL3_CMD); |
|
EL3WINDOW(0); |
|
el3_up(dev); |
|
|
|
if (netif_running(dev)) |
|
netif_device_attach(dev); |
|
|
|
spin_unlock_irqrestore(&lp->lock, flags); |
|
return 0; |
|
} |
|
|
|
#endif /* CONFIG_PM */ |
|
|
|
module_param(debug,int, 0); |
|
module_param_hw_array(irq, int, irq, NULL, 0); |
|
module_param(max_interrupt_work, int, 0); |
|
MODULE_PARM_DESC(debug, "debug level (0-6)"); |
|
MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); |
|
MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); |
|
#ifdef CONFIG_PNP |
|
module_param(nopnp, int, 0); |
|
MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)"); |
|
#endif /* CONFIG_PNP */ |
|
MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B, 3c529, 3c579) ethernet driver"); |
|
MODULE_LICENSE("GPL"); |
|
|
|
static int __init el3_init_module(void) |
|
{ |
|
int ret = 0; |
|
|
|
if (debug >= 0) |
|
el3_debug = debug; |
|
|
|
#ifdef CONFIG_PNP |
|
if (!nopnp) { |
|
ret = pnp_register_driver(&el3_pnp_driver); |
|
if (!ret) |
|
pnp_registered = 1; |
|
} |
|
#endif |
|
/* Select an open I/O location at 0x1*0 to do ISA contention select. */ |
|
/* Start with 0x110 to avoid some sound cards.*/ |
|
for (id_port = 0x110 ; id_port < 0x200; id_port += 0x10) { |
|
if (!request_region(id_port, 1, "3c509-control")) |
|
continue; |
|
outb(0x00, id_port); |
|
outb(0xff, id_port); |
|
if (inb(id_port) & 0x01) |
|
break; |
|
else |
|
release_region(id_port, 1); |
|
} |
|
if (id_port >= 0x200) { |
|
id_port = 0; |
|
pr_err("No I/O port available for 3c509 activation.\n"); |
|
} else { |
|
ret = isa_register_driver(&el3_isa_driver, EL3_MAX_CARDS); |
|
if (!ret) |
|
isa_registered = 1; |
|
} |
|
#ifdef CONFIG_EISA |
|
ret = eisa_driver_register(&el3_eisa_driver); |
|
if (!ret) |
|
eisa_registered = 1; |
|
#endif |
|
|
|
#ifdef CONFIG_PNP |
|
if (pnp_registered) |
|
ret = 0; |
|
#endif |
|
if (isa_registered) |
|
ret = 0; |
|
#ifdef CONFIG_EISA |
|
if (eisa_registered) |
|
ret = 0; |
|
#endif |
|
return ret; |
|
} |
|
|
|
static void __exit el3_cleanup_module(void) |
|
{ |
|
#ifdef CONFIG_PNP |
|
if (pnp_registered) |
|
pnp_unregister_driver(&el3_pnp_driver); |
|
#endif |
|
if (isa_registered) |
|
isa_unregister_driver(&el3_isa_driver); |
|
if (id_port) |
|
release_region(id_port, 1); |
|
#ifdef CONFIG_EISA |
|
if (eisa_registered) |
|
eisa_driver_unregister(&el3_eisa_driver); |
|
#endif |
|
} |
|
|
|
module_init (el3_init_module); |
|
module_exit (el3_cleanup_module);
|
|
|