diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/net/3c509.c | |
download | kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/net/3c509.c')
-rw-r--r-- | drivers/net/3c509.c | 1622 |
1 files changed, 1622 insertions, 0 deletions
diff --git a/drivers/net/3c509.c b/drivers/net/3c509.c new file mode 100644 index 0000000..e843109 --- /dev/null +++ b/drivers/net/3c509.c @@ -0,0 +1,1622 @@ +/* 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 becker@scyld.com, 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 <andrewm@uow.edu.au> + - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz) + - Reviewed against 1.18 from scyld.com + v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com> + - ethtool support + v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com> + - Power Management support + v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com> + - Full duplex support + v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca> + - Additional ethtool features + v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com> + - Increase *read_eeprom udelay to workaround oops with 2 cards. + v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org> + - Introduce driver model for EISA cards. +*/ + +#define DRV_NAME "3c509" +#define DRV_VERSION "1.19b" +#define DRV_RELDATE "08Nov2002" + +/* A few values that may be tweaked. */ + +/* Time in jiffies before concluding the transmitter is hung. */ +#define TX_TIMEOUT (400*HZ/1000) +/* Maximum events (Rx packets, etc.) to handle at each interrupt. */ +static int max_interrupt_work = 10; + +#include <linux/config.h> +#include <linux/module.h> +#ifdef CONFIG_MCA +#include <linux/mca.h> +#endif +#include <linux/isapnp.h> +#include <linux/string.h> +#include <linux/interrupt.h> +#include <linux/errno.h> +#include <linux/in.h> +#include <linux/slab.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 <asm/uaccess.h> +#include <asm/io.h> +#include <asm/irq.h> + +static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n"; +static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n"; + +#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 mca/eisa probe routines can increment + * it */ +static int el3_cards = 0; + +/* 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 + +struct el3_private { + struct net_device_stats stats; + struct net_device *next_dev; + spinlock_t lock; + /* skb send-queue */ + int head, size; + struct sk_buff *queue[SKB_QUEUE_SIZE]; +#ifdef CONFIG_PM + struct pm_dev *pmdev; +#endif + enum { + EL3_MCA, + EL3_PNP, + EL3_EISA, + } type; /* type of device */ + struct device *dev; +}; +static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/ +static struct net_device *el3_root_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 int el3_start_xmit(struct sk_buff *skb, struct net_device *dev); +static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs); +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); +static void el3_down(struct net_device *dev); +static void el3_up(struct net_device *dev); +static struct ethtool_ops ethtool_ops; +#ifdef CONFIG_PM +static int el3_suspend(struct pm_dev *pdev); +static int el3_resume(struct pm_dev *pdev); +static int el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data); +#endif +/* generic device remove for all device types */ +#if defined(CONFIG_EISA) || defined(CONFIG_MCA) +static int el3_device_remove (struct device *device); +#endif +#ifdef CONFIG_NET_POLL_CONTROLLER +static void el3_poll_controller(struct net_device *dev); +#endif + +#ifdef CONFIG_EISA +static struct eisa_device_id el3_eisa_ids[] = { + { "TCM5092" }, + { "TCM5093" }, + { "" } +}; + +static int el3_eisa_probe (struct device *device); + +static struct eisa_driver el3_eisa_driver = { + .id_table = el3_eisa_ids, + .driver = { + .name = "3c509", + .probe = el3_eisa_probe, + .remove = __devexit_p (el3_device_remove) + } +}; +#endif + +#ifdef CONFIG_MCA +static int el3_mca_probe(struct device *dev); + +static short el3_mca_adapter_ids[] __initdata = { + 0x627c, + 0x627d, + 0x62db, + 0x62f6, + 0x62f7, + 0x0000 +}; + +static char *el3_mca_adapter_names[] __initdata = { + "3Com 3c529 EtherLink III (10base2)", + "3Com 3c529 EtherLink III (10baseT)", + "3Com 3c529 EtherLink III (test mode)", + "3Com 3c529 EtherLink III (TP or coax)", + "3Com 3c529 EtherLink III (TP)", + NULL +}; + +static struct mca_driver el3_mca_driver = { + .id_table = el3_mca_adapter_ids, + .driver = { + .name = "3c529", + .bus = &mca_bus_type, + .probe = el3_mca_probe, + .remove = __devexit_p(el3_device_remove), + }, +}; +#endif /* CONFIG_MCA */ + +#if defined(__ISAPNP__) +static struct isapnp_device_id el3_isapnp_adapters[] __initdata = { + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090), + (long) "3Com Etherlink III (TP)" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091), + (long) "3Com Etherlink III" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094), + (long) "3Com Etherlink III (combo)" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095), + (long) "3Com Etherlink III (TPO)" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098), + (long) "3Com Etherlink III (TPC)" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7), + (long) "3Com Etherlink III compatible" }, + { ISAPNP_ANY_ID, ISAPNP_ANY_ID, + ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8), + (long) "3Com Etherlink III compatible" }, + { } /* terminate list */ +}; + +static u16 el3_isapnp_phys_addr[8][3]; +static int nopnp; +#endif /* __ISAPNP__ */ + +/* With the driver model introduction for EISA devices, both init + * and cleanup have been split : + * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove + * - MCA/ISA still use el3_probe + * + * Both call el3_common_init/el3_common_remove. */ + +static int __init el3_common_init(struct net_device *dev) +{ + struct el3_private *lp = netdev_priv(dev); + short i; + int err; + + 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->open = &el3_open; + dev->hard_start_xmit = &el3_start_xmit; + dev->stop = &el3_close; + dev->get_stats = &el3_get_stats; + dev->set_multicast_list = &set_multicast_list; + dev->tx_timeout = el3_tx_timeout; + dev->watchdog_timeo = TX_TIMEOUT; +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = el3_poll_controller; +#endif + SET_ETHTOOL_OPS(dev, ðtool_ops); + + err = register_netdev(dev); + if (err) { + printk(KERN_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; + } + + { + const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"}; + printk("%s: 3c5x9 found at %#3.3lx, %s port, address ", + dev->name, dev->base_addr, + if_names[(dev->if_port & 0x03)]); + } + + /* Read in the station address. */ + for (i = 0; i < 6; i++) + printk(" %2.2x", dev->dev_addr[i]); + printk(", IRQ %d.\n", dev->irq); + + if (el3_debug > 0) + printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB); + return 0; + +} + +static void el3_common_remove (struct net_device *dev) +{ + struct el3_private *lp = netdev_priv(dev); + + (void) lp; /* Keep gcc quiet... */ +#ifdef CONFIG_PM + if (lp->pmdev) + pm_unregister(lp->pmdev); +#endif +#if defined(__ISAPNP__) + if (lp->type == EL3_PNP) + pnp_device_detach(to_pnp_dev(lp->dev)); +#endif + + unregister_netdev (dev); + release_region(dev->base_addr, EL3_IO_EXTENT); + free_netdev (dev); +} + +static int __init el3_probe(int card_idx) +{ + struct net_device *dev; + struct el3_private *lp; + short lrs_state = 0xff, i; + int ioaddr, irq, if_port; + u16 phys_addr[3]; + static int current_tag; + int err = -ENODEV; +#if defined(__ISAPNP__) + static int pnp_cards; + struct pnp_dev *idev = NULL; + + if (nopnp == 1) + goto no_pnp; + + for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) { + int j; + while ((idev = pnp_find_dev(NULL, + el3_isapnp_adapters[i].vendor, + el3_isapnp_adapters[i].function, + idev))) { + if (pnp_device_attach(idev) < 0) + continue; + if (pnp_activate_dev(idev) < 0) { +__again: + pnp_device_detach(idev); + continue; + } + if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0)) + goto __again; + ioaddr = pnp_port_start(idev, 0); + if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) { + pnp_device_detach(idev); + return -EBUSY; + } + irq = pnp_irq(idev, 0); + if (el3_debug > 3) + printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n", + (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq); + EL3WINDOW(0); + for (j = 0; j < 3; j++) + el3_isapnp_phys_addr[pnp_cards][j] = + phys_addr[j] = + htons(read_eeprom(ioaddr, j)); + if_port = read_eeprom(ioaddr, 8) >> 14; + dev = alloc_etherdev(sizeof (struct el3_private)); + if (!dev) { + release_region(ioaddr, EL3_IO_EXTENT); + pnp_device_detach(idev); + return -ENOMEM; + } + + SET_MODULE_OWNER(dev); + SET_NETDEV_DEV(dev, &idev->dev); + pnp_cards++; + + netdev_boot_setup_check(dev); + goto found; + } + } +no_pnp: +#endif /* __ISAPNP__ */ + + /* Select an open I/O location at 0x1*0 to do contention select. */ + for ( ; id_port < 0x200; id_port += 0x10) { + if (!request_region(id_port, 1, "3c509")) + continue; + outb(0x00, id_port); + outb(0xff, id_port); + if (inb(id_port) & 0x01){ + release_region(id_port, 1); + break; + } else + release_region(id_port, 1); + } + if (id_port >= 0x200) { + /* Rare -- do we really need a warning? */ + printk(" WARNING: No I/O port available for 3c509 activation.\n"); + return -ENODEV; + } + + /* Next check for all ISA bus boards 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 -ENODEV; + } + + /* 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)); + } + +#if defined(__ISAPNP__) + if (nopnp == 0) { + /* The ISA PnP 3c509 cards respond to the ID sequence. + This check is needed in order not to register them twice. */ + for (i = 0; i < pnp_cards; i++) { + if (phys_addr[0] == el3_isapnp_phys_addr[i][0] && + phys_addr[1] == el3_isapnp_phys_addr[i][1] && + phys_addr[2] == el3_isapnp_phys_addr[i][2]) + { + if (el3_debug > 3) + printk("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); + goto no_pnp; + } + } + } +#endif /* __ISAPNP__ */ + + { + unsigned int iobase = id_read_eeprom(8); + if_port = iobase >> 14; + ioaddr = 0x200 + ((iobase & 0x1f) << 4); + } + irq = id_read_eeprom(9) >> 12; + + dev = alloc_etherdev(sizeof (struct el3_private)); + if (!dev) + return -ENOMEM; + + SET_MODULE_OWNER(dev); + + netdev_boot_setup_check(dev); + + /* Set passed-in IRQ or I/O Addr. */ + if (dev->irq > 1 && dev->irq < 16) + irq = dev->irq; + + if (dev->base_addr) { + if (dev->mem_end == 0x3c509 /* Magic key */ + && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0) + ioaddr = dev->base_addr & 0x3f0; + else if (dev->base_addr != ioaddr) + goto out; + } + + if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) { + err = -EBUSY; + goto out; + } + + /* 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) + goto out1; + + /* Free the interrupt so that some other card can use it. */ + outw(0x0f00, ioaddr + WN0_IRQ); + +#if defined(__ISAPNP__) + found: /* PNP jumps here... */ +#endif /* __ISAPNP__ */ + + memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); + dev->base_addr = ioaddr; + dev->irq = irq; + dev->if_port = if_port; + lp = netdev_priv(dev); +#if defined(__ISAPNP__) + lp->dev = &idev->dev; +#endif + err = el3_common_init(dev); + + if (err) + goto out1; + +#ifdef CONFIG_PM + /* register power management */ + lp->pmdev = pm_register(PM_ISA_DEV, card_idx, el3_pm_callback); + if (lp->pmdev) { + struct pm_dev *p; + p = lp->pmdev; + p->data = (struct net_device *)dev; + } +#endif + + el3_cards++; + lp->next_dev = el3_root_dev; + el3_root_dev = dev; + return 0; + +out1: +#if defined(__ISAPNP__) + if (idev) + pnp_device_detach(idev); +#endif +out: + free_netdev(dev); + return err; +} + +#ifdef CONFIG_MCA +static int __init el3_mca_probe(struct device *device) +{ + /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch, + * heavily modified by Chris Beauregard + * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA + * probing. + * + * redone for multi-card detection by ZP Gu (zpg@castle.net) + * now works as a module */ + + struct el3_private *lp; + short i; + int ioaddr, irq, if_port; + u16 phys_addr[3]; + struct net_device *dev = NULL; + u_char pos4, pos5; + struct mca_device *mdev = to_mca_device(device); + int slot = mdev->slot; + int err; + + pos4 = mca_device_read_stored_pos(mdev, 4); + pos5 = mca_device_read_stored_pos(mdev, 5); + + ioaddr = ((short)((pos4&0xfc)|0x02)) << 8; + irq = pos5 & 0x0f; + + + printk("3c529: found %s at slot %d\n", + el3_mca_adapter_names[mdev->index], slot + 1); + + /* claim the slot */ + strncpy(mdev->name, el3_mca_adapter_names[mdev->index], + sizeof(mdev->name)); + mca_device_set_claim(mdev, 1); + + if_port = pos4 & 0x03; + + irq = mca_device_transform_irq(mdev, irq); + ioaddr = mca_device_transform_ioport(mdev, ioaddr); + if (el3_debug > 2) { + printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port); + } + EL3WINDOW(0); + for (i = 0; i < 3; i++) { + phys_addr[i] = htons(read_eeprom(ioaddr, i)); + } + + dev = alloc_etherdev(sizeof (struct el3_private)); + if (dev == NULL) { + release_region(ioaddr, EL3_IO_EXTENT); + return -ENOMEM; + } + + SET_MODULE_OWNER(dev); + netdev_boot_setup_check(dev); + + memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); + dev->base_addr = ioaddr; + dev->irq = irq; + dev->if_port = if_port; + lp = netdev_priv(dev); + lp->dev = device; + lp->type = EL3_MCA; + device->driver_data = dev; + err = el3_common_init(dev); + + if (err) { + device->driver_data = NULL; + free_netdev(dev); + return -ENOMEM; + } + + el3_cards++; + return 0; +} + +#endif /* CONFIG_MCA */ + +#ifdef CONFIG_EISA +static int __init el3_eisa_probe (struct device *device) +{ + struct el3_private *lp; + short i; + int ioaddr, irq, if_port; + u16 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, "3c509")) + 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_MODULE_OWNER(dev); + + netdev_boot_setup_check(dev); + + memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr)); + dev->base_addr = ioaddr; + dev->irq = irq; + dev->if_port = if_port; + lp = netdev_priv(dev); + lp->dev = device; + lp->type = 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_cards++; + return 0; +} +#endif + +#if defined(CONFIG_EISA) || defined(CONFIG_MCA) +/* This remove works for all device types. + * + * The net dev must be stored in the driver_data field */ +static int __devexit el3_device_remove (struct device *device) +{ + struct net_device *dev; + + dev = device->driver_data; + + el3_common_remove (dev); + return 0; +} +#endif + +/* 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 __init 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) + printk(" 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) + printk("%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) + printk("%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) +{ + struct el3_private *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + /* Transmitter timeout, serious problems. */ + printk("%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)); + lp->stats.tx_errors++; + dev->trans_start = jiffies; + /* Issue TX_RESET and TX_START commands. */ + outw(TxReset, ioaddr + EL3_CMD); + outw(TxEnable, ioaddr + EL3_CMD); + netif_wake_queue(dev); +} + + +static int +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); + + lp->stats.tx_bytes += skb->len; + + if (el3_debug > 4) { + printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n", + dev->name, skb->len, inw(ioaddr + EL3_STATUS)); + } +#if 0 +#ifndef final_version + { /* Error-checking code, delete someday. */ + ushort status = inw(ioaddr + EL3_STATUS); + if (status & 0x0001 /* IRQ line active, missed one. */ + && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */ + printk("%s: Missed interrupt, status then %04x now %04x" + " Tx %2.2x Rx %4.4x.\n", dev->name, status, + inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS), + inw(ioaddr + RX_STATUS)); + /* Fake interrupt trigger by masking, acknowledge interrupts. */ + outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD); + outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq, + ioaddr + EL3_CMD); + outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD); + } + } +#endif +#endif + /* + * 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. */ +#ifdef __powerpc__ + outsl_ns(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); +#else + outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2); +#endif + + dev->trans_start = jiffies; + 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_kfree_skb (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) lp->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 0; +} + +/* The EL3 interrupt handler. */ +static irqreturn_t +el3_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + struct net_device *dev = (struct net_device *)dev_id; + struct el3_private *lp; + int ioaddr, status; + int i = max_interrupt_work; + + if (dev == NULL) { + printk ("el3_interrupt(): irq %d for unknown device.\n", irq); + return IRQ_NONE; + } + + lp = netdev_priv(dev); + spin_lock(&lp->lock); + + ioaddr = dev->base_addr; + + if (el3_debug > 4) { + status = inw(ioaddr + EL3_STATUS); + printk("%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) + printk(" 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. */ + struct el3_private *lp = netdev_priv(dev); + short tx_status; + int i = 4; + + while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) { + if (tx_status & 0x38) lp->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) { + printk("%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) { + printk("%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, NULL); + 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 &lp->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) +{ + struct el3_private *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + + if (el3_debug > 5) + printk(" 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); + lp->stats.tx_carrier_errors += inb(ioaddr + 0); + lp->stats.tx_heartbeat_errors += inb(ioaddr + 1); + /* Multiple collisions. */ inb(ioaddr + 2); + lp->stats.collisions += inb(ioaddr + 3); + lp->stats.tx_window_errors += inb(ioaddr + 4); + lp->stats.rx_fifo_errors += inb(ioaddr + 5); + lp->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); + return; +} + +static int +el3_rx(struct net_device *dev) +{ + struct el3_private *lp = netdev_priv(dev); + int ioaddr = dev->base_addr; + short rx_status; + + if (el3_debug > 5) + printk(" 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); + lp->stats.rx_errors++; + switch (error) { + case 0x0000: lp->stats.rx_over_errors++; break; + case 0x0800: lp->stats.rx_length_errors++; break; + case 0x1000: lp->stats.rx_frame_errors++; break; + case 0x1800: lp->stats.rx_length_errors++; break; + case 0x2000: lp->stats.rx_frame_errors++; break; + case 0x2800: lp->stats.rx_crc_errors++; break; + } + } else { + short pkt_len = rx_status & 0x7ff; + struct sk_buff *skb; + + skb = dev_alloc_skb(pkt_len+5); + lp->stats.rx_bytes += pkt_len; + if (el3_debug > 4) + printk("Receiving packet size %d status %4.4x.\n", + pkt_len, rx_status); + if (skb != NULL) { + skb->dev = dev; + skb_reserve(skb, 2); /* Align IP on 16 byte */ + + /* 'skb->data' points to the start of sk_buff data area. */ +#ifdef __powerpc__ + insl_ns(ioaddr+RX_FIFO, skb_put(skb,pkt_len), + (pkt_len + 3) >> 2); +#else + insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len), + (pkt_len + 3) >> 2); +#endif + + outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */ + skb->protocol = eth_type_trans(skb,dev); + netif_rx(skb); + dev->last_rx = jiffies; + lp->stats.rx_packets++; + continue; + } + outw(RxDiscard, ioaddr + EL3_CMD); + lp->stats.rx_dropped++; + if (el3_debug) + printk("%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) + printk(KERN_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; + + if (el3_debug > 1) { + static int old; + if (old != dev->mc_count) { + old = dev->mc_count; + printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count); + } + } + spin_lock_irqsave(&lp->lock, flags); + if (dev->flags&IFF_PROMISC) { + outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm, + ioaddr + EL3_CMD); + } + else if (dev->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) + printk("%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 int +el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + u16 tmp; + int ioaddr = dev->base_addr; + + EL3WINDOW(0); + /* obtain current transceiver via WN4_MEDIA? */ + tmp = inw(ioaddr + WN0_ADDR_CONF); + ecmd->transceiver = XCVR_INTERNAL; + switch (tmp >> 14) { + case 0: + ecmd->port = PORT_TP; + break; + case 1: + ecmd->port = PORT_AUI; + ecmd->transceiver = XCVR_EXTERNAL; + break; + case 3: + ecmd->port = PORT_BNC; + default: + break; + } + + ecmd->duplex = DUPLEX_HALF; + ecmd->supported = 0; + tmp = inw(ioaddr + WN0_CONF_CTRL); + if (tmp & (1<<13)) + ecmd->supported |= SUPPORTED_AUI; + if (tmp & (1<<12)) + ecmd->supported |= SUPPORTED_BNC; + if (tmp & (1<<9)) { + ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full; /* hmm... */ + EL3WINDOW(4); + tmp = inw(ioaddr + WN4_NETDIAG); + if (tmp & FD_ENABLE) + ecmd->duplex = DUPLEX_FULL; + } + + ecmd->speed = SPEED_10; + EL3WINDOW(1); + return 0; +} + +static int +el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + u16 tmp; + int ioaddr = dev->base_addr; + + if (ecmd->speed != SPEED_10) + return -EINVAL; + if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL)) + return -EINVAL; + if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL)) + return -EINVAL; + + /* change XCVR type */ + EL3WINDOW(0); + tmp = inw(ioaddr + WN0_ADDR_CONF); + switch (ecmd->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 (ecmd->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) +{ + strcpy(info->driver, DRV_NAME); + strcpy(info->version, DRV_VERSION); +} + +static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + struct el3_private *lp = netdev_priv(dev); + int ret; + + spin_lock_irq(&lp->lock); + ret = el3_netdev_get_ecmd(dev, ecmd); + spin_unlock_irq(&lp->lock); + return ret; +} + +static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) +{ + struct el3_private *lp = netdev_priv(dev); + int ret; + + spin_lock_irq(&lp->lock); + ret = el3_netdev_set_ecmd(dev, ecmd); + 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 struct ethtool_ops ethtool_ops = { + .get_drvinfo = el3_get_drvinfo, + .get_settings = el3_get_settings, + .set_settings = el3_set_settings, + .get_link = el3_get_link, + .get_msglevel = el3_get_msglevel, + .set_msglevel = el3_set_msglevel, +}; + +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 */ + printk("%s: ", dev->name); + switch (dev->if_port & 0x0c) { + case 12: + /* force full-duplex mode if 3c5x9b */ + if (sw_info & 0x000f) { + printk("Forcing 3c5x9b full-duplex mode"); + break; + } + case 8: + /* set full-duplex mode based on eeprom config setting */ + if ((sw_info & 0x000f) && (sw_info & 0x8000)) { + printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)"); + break; + } + default: + /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */ + printk("Setting 3c5x9/3c5x9B half-duplex mode"); + net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */ + } + + outw(net_diag, ioaddr + WN4_NETDIAG); + printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info); + if (el3_debug > 3) + printk("%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 pm_dev *pdev) +{ + unsigned long flags; + struct net_device *dev; + struct el3_private *lp; + int ioaddr; + + if (!pdev && !pdev->data) + return -EINVAL; + + dev = (struct net_device *)pdev->data; + 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 pm_dev *pdev) +{ + unsigned long flags; + struct net_device *dev; + struct el3_private *lp; + int ioaddr; + + if (!pdev && !pdev->data) + return -EINVAL; + + dev = (struct net_device *)pdev->data; + lp = netdev_priv(dev); + ioaddr = dev->base_addr; + + spin_lock_irqsave(&lp->lock, flags); + + outw(PowerUp, ioaddr + EL3_CMD); + el3_up(dev); + + if (netif_running(dev)) + netif_device_attach(dev); + + spin_unlock_irqrestore(&lp->lock, flags); + return 0; +} + +static int +el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data) +{ + switch (rqst) { + case PM_SUSPEND: + return el3_suspend(pdev); + + case PM_RESUME: + return el3_resume(pdev); + } + return 0; +} + +#endif /* CONFIG_PM */ + +/* Parameters that may be passed into the module. */ +static int debug = -1; +static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1}; +static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; + +module_param(debug,int, 0); +module_param_array(irq, int, NULL, 0); +module_param_array(xcvr, int, 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(xcvr,"transceiver(s) (0=internal, 1=external)"); +MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt"); +#if defined(__ISAPNP__) +module_param(nopnp, int, 0); +MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)"); +MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters); +#endif /* __ISAPNP__ */ +MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver"); +MODULE_LICENSE("GPL"); + +static int __init el3_init_module(void) +{ + el3_cards = 0; + + if (debug >= 0) + el3_debug = debug; + + el3_root_dev = NULL; + while (el3_probe(el3_cards) == 0) { + if (irq[el3_cards] > 1) + el3_root_dev->irq = irq[el3_cards]; + if (xcvr[el3_cards] >= 0) + el3_root_dev->if_port = xcvr[el3_cards]; + el3_cards++; + } + +#ifdef CONFIG_EISA + if (eisa_driver_register (&el3_eisa_driver) < 0) { + eisa_driver_unregister (&el3_eisa_driver); + } +#endif +#ifdef CONFIG_MCA + mca_register_driver(&el3_mca_driver); +#endif + return 0; +} + +static void __exit el3_cleanup_module(void) +{ + struct net_device *next_dev; + + while (el3_root_dev) { + struct el3_private *lp = netdev_priv(el3_root_dev); + + next_dev = lp->next_dev; + el3_common_remove (el3_root_dev); + el3_root_dev = next_dev; + } + +#ifdef CONFIG_EISA + eisa_driver_unregister (&el3_eisa_driver); +#endif +#ifdef CONFIG_MCA + mca_unregister_driver(&el3_mca_driver); +#endif +} + +module_init (el3_init_module); +module_exit (el3_cleanup_module); + |