/* ====================================================================== * * A PCMCIA ethernet driver for the 3com 3c589 card. * * Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net * * 3c589_cs.c 1.162 2001/10/13 00:08:50 * * The network driver code is based on Donald Becker's 3c589 code: * * Written 1994 by Donald Becker. * Copyright 1993 United States Government as represented by the * Director, National Security Agency. This software may be used and * distributed according to the terms of the GNU General Public License, * incorporated herein by reference. * Donald Becker may be reached at becker@scyld.com * * Updated for 2.5.x by Alan Cox * * ====================================================================== */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #define DRV_NAME "3c589_cs" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* To minimize the size of the driver source I only define operating * constants if they are used several times. You'll need the manual * if you want to understand driver details. */ /* Offsets from base I/O address. */ #define EL3_DATA 0x00 #define EL3_TIMER 0x0a #define EL3_CMD 0x0e #define EL3_STATUS 0x0e #define EEPROM_READ 0x0080 #define EEPROM_BUSY 0x8000 #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 }; 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_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 MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */ /* Time in jiffies before concluding Tx hung */ #define TX_TIMEOUT ((400*HZ)/1000) struct el3_private { struct pcmcia_device *p_dev; /* For transceiver monitoring */ struct timer_list media; u16 media_status; u16 fast_poll; unsigned long last_irq; spinlock_t lock; }; static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" }; /*====================================================================*/ /* Module parameters */ MODULE_AUTHOR("David Hinds "); MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver"); MODULE_LICENSE("GPL"); #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) /* Special hook for setting if_port when module is loaded */ INT_MODULE_PARM(if_port, 0); /*====================================================================*/ static int tc589_config(struct pcmcia_device *link); static void tc589_release(struct pcmcia_device *link); static u16 read_eeprom(unsigned int ioaddr, int index); static void tc589_reset(struct net_device *dev); static void media_check(struct timer_list *t); static int el3_config(struct net_device *dev, struct ifmap *map); 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 el3_tx_timeout(struct net_device *dev, unsigned int txqueue); static void set_rx_mode(struct net_device *dev); static void set_multicast_list(struct net_device *dev); static const struct ethtool_ops netdev_ethtool_ops; static void tc589_detach(struct pcmcia_device *p_dev); static const struct net_device_ops el3_netdev_ops = { .ndo_open = el3_open, .ndo_stop = el3_close, .ndo_start_xmit = el3_start_xmit, .ndo_tx_timeout = el3_tx_timeout, .ndo_set_config = el3_config, .ndo_get_stats = el3_get_stats, .ndo_set_rx_mode = set_multicast_list, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; static int tc589_probe(struct pcmcia_device *link) { struct el3_private *lp; struct net_device *dev; int ret; dev_dbg(&link->dev, "3c589_attach()\n"); /* Create new ethernet device */ dev = alloc_etherdev(sizeof(struct el3_private)); if (!dev) return -ENOMEM; lp = netdev_priv(dev); link->priv = dev; lp->p_dev = link; spin_lock_init(&lp->lock); link->resource[0]->end = 16; link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16; link->config_flags |= CONF_ENABLE_IRQ; link->config_index = 1; dev->netdev_ops = &el3_netdev_ops; dev->watchdog_timeo = TX_TIMEOUT; dev->ethtool_ops = &netdev_ethtool_ops; ret = tc589_config(link); if (ret) goto err_free_netdev; return 0; err_free_netdev: free_netdev(dev); return ret; } static void tc589_detach(struct pcmcia_device *link) { struct net_device *dev = link->priv; dev_dbg(&link->dev, "3c589_detach\n"); unregister_netdev(dev); tc589_release(link); free_netdev(dev); } /* tc589_detach */ static int tc589_config(struct pcmcia_device *link) { struct net_device *dev = link->priv; __be16 *phys_addr; int ret, i, j, multi = 0, fifo; unsigned int ioaddr; static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"}; u8 *buf; size_t len; dev_dbg(&link->dev, "3c589_config\n"); phys_addr = (__be16 *)dev->dev_addr; /* Is this a 3c562? */ if (link->manf_id != MANFID_3COM) dev_info(&link->dev, "hmmm, is this really a 3Com card??\n"); multi = (link->card_id == PRODID_3COM_3C562); link->io_lines = 16; /* For the 3c562, the base address must be xx00-xx7f */ for (i = j = 0; j < 0x400; j += 0x10) { if (multi && (j & 0x80)) continue; link->resource[0]->start = j ^ 0x300; i = pcmcia_request_io(link); if (i == 0) break; } if (i != 0) goto failed; ret = pcmcia_request_irq(link, el3_interrupt); if (ret) goto failed; ret = pcmcia_enable_device(link); if (ret) goto failed; dev->irq = link->irq; dev->base_addr = link->resource[0]->start; ioaddr = dev->base_addr; EL3WINDOW(0); /* The 3c589 has an extra EEPROM for configuration info, including * the hardware address. The 3c562 puts the address in the CIS. */ len = pcmcia_get_tuple(link, 0x88, &buf); if (buf && len >= 6) { for (i = 0; i < 3; i++) phys_addr[i] = htons(le16_to_cpu(buf[i*2])); kfree(buf); } else { kfree(buf); /* 0 < len < 6 */ for (i = 0; i < 3; i++) phys_addr[i] = htons(read_eeprom(ioaddr, i)); if (phys_addr[0] == htons(0x6060)) { dev_err(&link->dev, "IO port conflict at 0x%03lx-0x%03lx\n", dev->base_addr, dev->base_addr+15); goto failed; } } /* The address and resource configuration register aren't loaded from * the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */ outw(0x3f00, ioaddr + 8); fifo = inl(ioaddr); /* The if_port symbol can be set when the module is loaded */ if ((if_port >= 0) && (if_port <= 3)) dev->if_port = if_port; else dev_err(&link->dev, "invalid if_port requested\n"); SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { dev_err(&link->dev, "register_netdev() failed\n"); goto failed; } netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n", (multi ? "562" : "589"), dev->base_addr, dev->irq, dev->dev_addr); netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n", (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3], if_names[dev->if_port]); return 0; failed: tc589_release(link); return -ENODEV; } /* tc589_config */ static void tc589_release(struct pcmcia_device *link) { pcmcia_disable_device(link); } static int tc589_suspend(struct pcmcia_device *link) { struct net_device *dev = link->priv; if (link->open) netif_device_detach(dev); return 0; } static int tc589_resume(struct pcmcia_device *link) { struct net_device *dev = link->priv; if (link->open) { tc589_reset(dev); netif_device_attach(dev); } return 0; } /*====================================================================*/ /* Use this for commands that may take time to finish */ static void tc589_wait_for_completion(struct net_device *dev, int cmd) { int i = 100; outw(cmd, dev->base_addr + EL3_CMD); while (--i > 0) if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break; if (i == 0) netdev_warn(dev, "command 0x%04x did not complete!\n", cmd); } /* Read a word from the EEPROM using the regular EEPROM access register. * Assume that we are in register window zero. */ static u16 read_eeprom(unsigned int ioaddr, int index) { int i; outw(EEPROM_READ + index, ioaddr + 10); /* Reading the eeprom takes 162 us */ for (i = 1620; i >= 0; i--) if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0) break; return inw(ioaddr + 12); } /* Set transceiver type, perhaps to something other than what the user * specified in dev->if_port. */ static void tc589_set_xcvr(struct net_device *dev, int if_port) { struct el3_private *lp = netdev_priv(dev); unsigned int ioaddr = dev->base_addr; EL3WINDOW(0); switch (if_port) { case 0: case 1: outw(0, ioaddr + 6); break; case 2: outw(3<<14, ioaddr + 6); break; case 3: outw(1<<14, ioaddr + 6); break; } /* On PCMCIA, this just turns on the LED */ outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD); /* 10baseT interface, enable link beat and jabber check. */ EL3WINDOW(4); outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA); EL3WINDOW(1); if (if_port == 2) lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000); else lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800); } static void dump_status(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; EL3WINDOW(1); netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n", inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE)); EL3WINDOW(4); netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08), inw(ioaddr+0x0a)); EL3WINDOW(1); } /* Reset and restore all of the 3c589 registers. */ static void tc589_reset(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; int i; EL3WINDOW(0); outw(0x0001, ioaddr + 4); /* Activate board. */ outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */ /* Set the station address in window 2. */ EL3WINDOW(2); for (i = 0; i < 6; i++) outb(dev->dev_addr[i], ioaddr + i); tc589_set_xcvr(dev, dev->if_port); /* 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); set_rx_mode(dev); 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 | RxComplete | StatsFull | AdapterFailure, ioaddr + EL3_CMD); } static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); snprintf(info->bus_info, sizeof(info->bus_info), "PCMCIA 0x%lx", dev->base_addr); } static const struct ethtool_ops netdev_ethtool_ops = { .get_drvinfo = netdev_get_drvinfo, }; static int el3_config(struct net_device *dev, struct ifmap *map) { if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) { if (map->port <= 3) { dev->if_port = map->port; netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]); tc589_set_xcvr(dev, dev->if_port); } else { return -EINVAL; } } return 0; } static int el3_open(struct net_device *dev) { struct el3_private *lp = netdev_priv(dev); struct pcmcia_device *link = lp->p_dev; if (!pcmcia_dev_present(link)) return -ENODEV; link->open++; netif_start_queue(dev); tc589_reset(dev); timer_setup(&lp->media, media_check, 0); mod_timer(&lp->media, jiffies + HZ); dev_dbg(&link->dev, "%s: opened, status %4.4x.\n", dev->name, inw(dev->base_addr + EL3_STATUS)); return 0; } static void el3_tx_timeout(struct net_device *dev, unsigned int txqueue) { unsigned int ioaddr = dev->base_addr; netdev_warn(dev, "Transmit timed out!\n"); dump_status(dev); dev->stats.tx_errors++; netif_trans_update(dev); /* prevent tx timeout */ /* Issue TX_RESET and TX_START commands. */ tc589_wait_for_completion(dev, TxReset); outw(TxEnable, ioaddr + EL3_CMD); netif_wake_queue(dev); } static void pop_tx_status(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; int i; /* Clear the Tx status stack. */ for (i = 32; i > 0; i--) { u_char tx_status = inb(ioaddr + TX_STATUS); if (!(tx_status & 0x84)) break; /* reset transmitter on jabber error or underrun */ if (tx_status & 0x30) tc589_wait_for_completion(dev, TxReset); if (tx_status & 0x38) { netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status); outw(TxEnable, ioaddr + EL3_CMD); dev->stats.tx_aborted_errors++; } outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */ } } static netdev_tx_t el3_start_xmit(struct sk_buff *skb, struct net_device *dev) { unsigned int ioaddr = dev->base_addr; struct el3_private *priv = netdev_priv(dev); unsigned long flags; netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n", (long)skb->len, inw(ioaddr + EL3_STATUS)); spin_lock_irqsave(&priv->lock, flags); dev->stats.tx_bytes += skb->len; /* 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_stop_queue(dev); /* Interrupt us when the FIFO has room for max-sized packet. */ outw(SetTxThreshold + 1536, ioaddr + EL3_CMD); } pop_tx_status(dev); spin_unlock_irqrestore(&priv->lock, flags); dev_kfree_skb(skb); return NETDEV_TX_OK; } /* The EL3 interrupt handler. */ static irqreturn_t el3_interrupt(int irq, void *dev_id) { struct net_device *dev = (struct net_device *) dev_id; struct el3_private *lp = netdev_priv(dev); unsigned int ioaddr; __u16 status; int i = 0, handled = 1; if (!netif_device_present(dev)) return IRQ_NONE; ioaddr = dev->base_addr; netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS)); spin_lock(&lp->lock); while ((status = inw(ioaddr + EL3_STATUS)) & (IntLatch | RxComplete | StatsFull)) { if ((status & 0xe000) != 0x2000) { netdev_dbg(dev, "interrupt from dead card\n"); handled = 0; break; } if (status & RxComplete) el3_rx(dev); if (status & TxAvailable) { netdev_dbg(dev, " 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 & TxComplete) pop_tx_status(dev); if (status & (AdapterFailure | RxEarly | StatsFull)) { /* 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 & AdapterFailure) { u16 fifo_diag; EL3WINDOW(4); fifo_diag = inw(ioaddr + 4); EL3WINDOW(1); netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n", fifo_diag); if (fifo_diag & 0x0400) { /* Tx overrun */ tc589_wait_for_completion(dev, TxReset); outw(TxEnable, ioaddr + EL3_CMD); } if (fifo_diag & 0x2000) { /* Rx underrun */ tc589_wait_for_completion(dev, RxReset); set_rx_mode(dev); outw(RxEnable, ioaddr + EL3_CMD); } outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD); } } if (++i > 10) { netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n", status); /* Clear all interrupts */ outw(AckIntr | 0xFF, ioaddr + EL3_CMD); break; } /* Acknowledge the IRQ. */ outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); } lp->last_irq = jiffies; spin_unlock(&lp->lock); netdev_dbg(dev, "exiting interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS)); return IRQ_RETVAL(handled); } static void media_check(struct timer_list *t) { struct el3_private *lp = from_timer(lp, t, media); struct net_device *dev = lp->p_dev->priv; unsigned int ioaddr = dev->base_addr; u16 media, errs; unsigned long flags; if (!netif_device_present(dev)) goto reschedule; /* Check for pending interrupt with expired latency timer: with * this, we can limp along even if the interrupt is blocked */ if ((inw(ioaddr + EL3_STATUS) & IntLatch) && (inb(ioaddr + EL3_TIMER) == 0xff)) { if (!lp->fast_poll) netdev_warn(dev, "interrupt(s) dropped!\n"); local_irq_save(flags); el3_interrupt(dev->irq, dev); local_irq_restore(flags); lp->fast_poll = HZ; } if (lp->fast_poll) { lp->fast_poll--; lp->media.expires = jiffies + HZ/100; add_timer(&lp->media); return; } /* lp->lock guards the EL3 window. Window should always be 1 except * when the lock is held */ spin_lock_irqsave(&lp->lock, flags); EL3WINDOW(4); media = inw(ioaddr+WN4_MEDIA) & 0xc810; /* Ignore collisions unless we've had no irq's recently */ if (time_before(jiffies, lp->last_irq + HZ)) { media &= ~0x0010; } else { /* Try harder to detect carrier errors */ EL3WINDOW(6); outw(StatsDisable, ioaddr + EL3_CMD); errs = inb(ioaddr + 0); outw(StatsEnable, ioaddr + EL3_CMD); dev->stats.tx_carrier_errors += errs; if (errs || (lp->media_status & 0x0010)) media |= 0x0010; } if (media != lp->media_status) { if ((media & lp->media_status & 0x8000) && ((lp->media_status ^ media) & 0x0800)) netdev_info(dev, "%s link beat\n", (lp->media_status & 0x0800 ? "lost" : "found")); else if ((media & lp->media_status & 0x4000) && ((lp->media_status ^ media) & 0x0010)) netdev_info(dev, "coax cable %s\n", (lp->media_status & 0x0010 ? "ok" : "problem")); if (dev->if_port == 0) { if (media & 0x8000) { if (media & 0x0800) netdev_info(dev, "flipped to 10baseT\n"); else tc589_set_xcvr(dev, 2); } else if (media & 0x4000) { if (media & 0x0010) tc589_set_xcvr(dev, 1); else netdev_info(dev, "flipped to 10base2\n"); } } lp->media_status = media; } EL3WINDOW(1); spin_unlock_irqrestore(&lp->lock, flags); reschedule: lp->media.expires = jiffies + HZ; add_timer(&lp->media); } static struct net_device_stats *el3_get_stats(struct net_device *dev) { struct el3_private *lp = netdev_priv(dev); unsigned long flags; struct pcmcia_device *link = lp->p_dev; if (pcmcia_dev_present(link)) { 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. * * Caller must hold the lock for this */ static void update_stats(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; netdev_dbg(dev, "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); /* Rx octets */ inw(ioaddr + 10); /* 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) { unsigned int ioaddr = dev->base_addr; int worklimit = 32; short rx_status; netdev_dbg(dev, "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)) & 0x8000) && worklimit > 0) { worklimit--; if (rx_status & 0x4000) { /* Error, update stats. */ short error = rx_status & 0x3800; 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); netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n", pkt_len, rx_status); if (skb != NULL) { skb_reserve(skb, 2); insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len), (pkt_len+3)>>2); skb->protocol = eth_type_trans(skb, dev); netif_rx(skb); dev->stats.rx_packets++; dev->stats.rx_bytes += pkt_len; } else { netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n", pkt_len); dev->stats.rx_dropped++; } } /* Pop the top of the Rx FIFO */ tc589_wait_for_completion(dev, RxDiscard); } if (worklimit == 0) netdev_warn(dev, "too much work in el3_rx!\n"); return 0; } static void set_rx_mode(struct net_device *dev) { unsigned int ioaddr = dev->base_addr; u16 opts = SetRxFilter | RxStation | RxBroadcast; if (dev->flags & IFF_PROMISC) opts |= RxMulticast | RxProm; else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI)) opts |= RxMulticast; outw(opts, ioaddr + EL3_CMD); } static void set_multicast_list(struct net_device *dev) { struct el3_private *priv = netdev_priv(dev); unsigned long flags; spin_lock_irqsave(&priv->lock, flags); set_rx_mode(dev); spin_unlock_irqrestore(&priv->lock, flags); } static int el3_close(struct net_device *dev) { struct el3_private *lp = netdev_priv(dev); struct pcmcia_device *link = lp->p_dev; unsigned int ioaddr = dev->base_addr; dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name); if (pcmcia_dev_present(link)) { /* Turn off statistics ASAP. We update dev->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 == 2) /* Turn off thinnet power. Green! */ outw(StopCoax, ioaddr + EL3_CMD); else if (dev->if_port == 1) { /* Disable link beat and jabber */ EL3WINDOW(4); outw(0, ioaddr + WN4_MEDIA); } /* Switching back to window 0 disables the IRQ. */ EL3WINDOW(0); /* But we explicitly zero the IRQ line select anyway. */ outw(0x0f00, ioaddr + WN0_IRQ); /* Check if the card still exists */ if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000) update_stats(dev); } link->open--; netif_stop_queue(dev); del_timer_sync(&lp->media); return 0; } static const struct pcmcia_device_id tc589_ids[] = { PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562), PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77), PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589), PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"), PCMCIA_DEVICE_NULL, }; MODULE_DEVICE_TABLE(pcmcia, tc589_ids); static struct pcmcia_driver tc589_driver = { .owner = THIS_MODULE, .name = "3c589_cs", .probe = tc589_probe, .remove = tc589_detach, .id_table = tc589_ids, .suspend = tc589_suspend, .resume = tc589_resume, }; module_pcmcia_driver(tc589_driver);