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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [usb/] [catc.c] - Blame information for rev 1765

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/*
 *  Copyright (c) 2001 Vojtech Pavlik
 *
 *  CATC EL1210A NetMate USB Ethernet driver
 *
 *  Sponsored by SuSE
 *
 *  Based on the work of
 *              Donald Becker
 *
 *  Old chipset support added by Simon Evans <spse@secret.org.uk> 2002
 *    - adds support for Belkin F5U011
 */
 
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Should you need to contact me, the author, you can do so either by
 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
 */
 
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/crc32.h>
#include <asm/bitops.h>
#include <asm/uaccess.h>
 
#undef DEBUG
 
#include <linux/usb.h>
 
/*
 * Version information.
 */
 
#define DRIVER_VERSION "v2.8"
#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
#define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver"
#define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet"
 
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
 
static const char driver_name[] = "catc";
 
/*
 * Some defines.
 */
 
#define STATS_UPDATE            (HZ)    /* Time between stats updates */
#define TX_TIMEOUT              (5*HZ)  /* Max time the queue can be stopped */
#define PKT_SZ                  1536    /* Max Ethernet packet size */
#define RX_MAX_BURST            15      /* Max packets per rx buffer (> 0, < 16) */
#define TX_MAX_BURST            15      /* Max full sized packets per tx buffer (> 0) */
#define CTRL_QUEUE              16      /* Max control requests in flight (power of two) */
#define RX_PKT_SZ               1600    /* Max size of receive packet for F5U011 */
 
/*
 * Control requests.
 */
 
enum control_requests {
        ReadMem =       0xf1,
        GetMac =        0xf2,
        Reset =         0xf4,
        SetMac =        0xf5,
        SetRxMode =     0xf5,  /* F5U011 only */
        WriteROM =      0xf8,
        SetReg =        0xfa,
        GetReg =        0xfb,
        WriteMem =      0xfc,
        ReadROM =       0xfd,
};
 
/*
 * Registers.
 */
 
enum register_offsets {
        TxBufCount =    0x20,
        RxBufCount =    0x21,
        OpModes =       0x22,
        TxQed =         0x23,
        RxQed =         0x24,
        MaxBurst =      0x25,
        RxUnit =        0x60,
        EthStatus =     0x61,
        StationAddr0 =  0x67,
        EthStats =      0x69,
        LEDCtrl =       0x81,
};
 
enum eth_stats {
        TxSingleColl =  0x00,
        TxMultiColl =   0x02,
        TxExcessColl =  0x04,
        RxFramErr =     0x06,
};
 
enum op_mode_bits {
        Op3MemWaits =   0x03,
        OpLenInclude =  0x08,
        OpRxMerge =     0x10,
        OpTxMerge =     0x20,
        OpWin95bugfix = 0x40,
        OpLoopback =    0x80,
};
 
enum rx_filter_bits {
        RxEnable =      0x01,
        RxPolarity =    0x02,
        RxForceOK =     0x04,
        RxMultiCast =   0x08,
        RxPromisc =     0x10,
        AltRxPromisc =  0x20, /* F5U011 uses different bit */
};
 
enum led_values {
        LEDFast =       0x01,
        LEDSlow =       0x02,
        LEDFlash =      0x03,
        LEDPulse =      0x04,
        LEDLink =       0x08,
};
 
enum link_status {
        LinkNoChange = 0,
        LinkGood     = 1,
        LinkBad      = 2
};
 
/*
 * The catc struct.
 */
 
#define CTRL_RUNNING    0
#define RX_RUNNING      1
#define TX_RUNNING      2
 
struct catc {
        struct net_device *netdev;
        struct usb_device *usbdev;
 
        struct net_device_stats stats;
        unsigned long flags;
 
        unsigned int tx_ptr, tx_idx;
        unsigned int ctrl_head, ctrl_tail;
        spinlock_t tx_lock, ctrl_lock;
 
        u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)];
        u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)];
        u8 irq_buf[2];
        u8 ctrl_buf[64];
        struct usb_ctrlrequest ctrl_dr;
 
        struct timer_list timer;
        u8 stats_buf[8];
        u16 stats_vals[4];
        unsigned long last_stats;
 
        u8 multicast[64];
 
        struct ctrl_queue {
                u8 dir;
                u8 request;
                u16 value;
                u16 index;
                void *buf;
                int len;
                void (*callback)(struct catc *catc, struct ctrl_queue *q);
        } ctrl_queue[CTRL_QUEUE];
 
        struct urb tx_urb, rx_urb, irq_urb, ctrl_urb;
 
        u8 is_f5u011;   /* Set if device is an F5U011 */
        u8 rxmode[2];   /* Used for F5U011 */
        atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */
};
 
/*
 * Useful macros.
 */
 
#define catc_get_mac(catc, mac)                         catc_ctrl_msg(catc, USB_DIR_IN,  GetMac, 0, 0, mac,  6)
#define catc_reset(catc)                                catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0)
#define catc_set_reg(catc, reg, val)                    catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0)
#define catc_get_reg(catc, reg, buf)                    catc_ctrl_msg(catc, USB_DIR_IN,  GetReg, 0, reg, buf, 1)
#define catc_write_mem(catc, addr, buf, size)           catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size)
#define catc_read_mem(catc, addr, buf, size)            catc_ctrl_msg(catc, USB_DIR_IN,  ReadMem, 0, addr, buf, size)
 
#define f5u011_rxmode(catc, rxmode)                     catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2)
#define f5u011_rxmode_async(catc, rxmode)               catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL)
#define f5u011_mchash_async(catc, hash)                 catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL)
 
#define catc_set_reg_async(catc, reg, val)              catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL)
#define catc_get_reg_async(catc, reg, cb)               catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb)
#define catc_write_mem_async(catc, addr, buf, size)     catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL)
 
/*
 * Receive routines.
 */
 
static void catc_rx_done(struct urb *urb)
{
        struct catc *catc = urb->context;
        u8 *pkt_start = urb->transfer_buffer;
        struct sk_buff *skb;
        int pkt_len, pkt_offset = 0;
 
        if (!catc->is_f5u011) {
                clear_bit(RX_RUNNING, &catc->flags);
                pkt_offset = 2;
        }
 
        if (urb->status) {
                dbg("rx_done, status %d, length %d", urb->status, urb->actual_length);
                return;
        }
 
        do {
                if(!catc->is_f5u011) {
                        pkt_len = le16_to_cpup((u16*)pkt_start);
                        if (pkt_len > urb->actual_length) {
                                catc->stats.rx_length_errors++;
                                catc->stats.rx_errors++;
                                break;
                        }
                } else {
                        pkt_len = urb->actual_length;
                }
 
                if (!(skb = dev_alloc_skb(pkt_len)))
                        return;
 
                skb->dev = catc->netdev;
                eth_copy_and_sum(skb, pkt_start + pkt_offset, pkt_len, 0);
                skb_put(skb, pkt_len);
 
                skb->protocol = eth_type_trans(skb, catc->netdev);
                netif_rx(skb);
 
                catc->stats.rx_packets++;
                catc->stats.rx_bytes += pkt_len;
 
                /* F5U011 only does one packet per RX */
                if (catc->is_f5u011)
                        break;
                pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
 
        } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
 
        catc->netdev->last_rx = jiffies;
 
        if (catc->is_f5u011) {
                if (atomic_read(&catc->recq_sz)) {
                        int status;
                        atomic_dec(&catc->recq_sz);
                        dbg("getting extra packet");
                        urb->dev = catc->usbdev;
                        if ((status = usb_submit_urb(urb)) < 0) {
                                dbg("submit(rx_urb) status %d", status);
                        }
                } else {
                        clear_bit(RX_RUNNING, &catc->flags);
                }
        }
}
 
static void catc_irq_done(struct urb *urb)
{
        struct catc *catc = urb->context;
        u8 *data = urb->transfer_buffer;
        int status;
        unsigned int hasdata = 0, linksts = LinkNoChange;
 
        if (!catc->is_f5u011) {
                hasdata = data[1] & 0x80;
                if (data[1] & 0x40)
                        linksts = LinkGood;
                else if (data[1] & 0x20)
                        linksts = LinkBad;
        } else {
                hasdata = (unsigned int)(be16_to_cpup((u16*)data) & 0x0fff);
                if (data[0] == 0x90)
                        linksts = LinkGood;
                else if (data[0] == 0xA0)
                        linksts = LinkBad;
        }
 
        if (urb->status) {
                dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], data[1]);
                return;
        }
 
        if (linksts == LinkGood) {
                netif_carrier_on(catc->netdev);
                dbg("link ok");
        }
 
        if (linksts == LinkBad) {
                netif_carrier_off(catc->netdev);
                dbg("link bad");
        }
 
        if (hasdata) {
                if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
                        if (catc->is_f5u011)
                                atomic_inc(&catc->recq_sz);
                } else {
                        catc->rx_urb.dev = catc->usbdev;
                        if ((status = usb_submit_urb(&catc->rx_urb)) < 0) {
                                err("submit(rx_urb) status %d", status);
                        }
                }
        }
}
 
/*
 * Transmit routines.
 */
 
static void catc_tx_run(struct catc *catc)
{
        int status;
 
        if (catc->is_f5u011)
                catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
 
        catc->tx_urb.transfer_buffer_length = catc->tx_ptr;
        catc->tx_urb.transfer_buffer = catc->tx_buf[catc->tx_idx];
        catc->tx_urb.dev = catc->usbdev;
 
        if ((status = usb_submit_urb(&catc->tx_urb)) < 0)
                err("submit(tx_urb), status %d", status);
 
        catc->tx_idx = !catc->tx_idx;
        catc->tx_ptr = 0;
 
        catc->netdev->trans_start = jiffies;
}
 
static void catc_tx_done(struct urb *urb)
{
        struct catc *catc = urb->context;
        unsigned long flags;
 
        if (urb->status == -ECONNRESET) {
                dbg("Tx Reset.");
                urb->transfer_flags &= ~USB_ASYNC_UNLINK;
                urb->status = 0;
                catc->netdev->trans_start = jiffies;
                catc->stats.tx_errors++;
                clear_bit(TX_RUNNING, &catc->flags);
                netif_wake_queue(catc->netdev);
                return;
        }
 
        if (urb->status) {
                dbg("tx_done, status %d, length %d", urb->status, urb->actual_length);
                return;
        }
 
        spin_lock_irqsave(&catc->tx_lock, flags);
 
        if (catc->tx_ptr)
                catc_tx_run(catc);
        else
                clear_bit(TX_RUNNING, &catc->flags);
 
        netif_wake_queue(catc->netdev);
 
        spin_unlock_irqrestore(&catc->tx_lock, flags);
}
 
static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
        unsigned long flags;
        char *tx_buf;
 
        spin_lock_irqsave(&catc->tx_lock, flags);
 
        catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
        tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
        *((u16*)tx_buf) = (catc->is_f5u011) ?
                cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len);
        memcpy(tx_buf + 2, skb->data, skb->len);
        catc->tx_ptr += skb->len + 2;
 
        if (!test_and_set_bit(TX_RUNNING, &catc->flags))
                catc_tx_run(catc);
 
        if ((catc->is_f5u011 && catc->tx_ptr)
             || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
                netif_stop_queue(netdev);
 
        spin_unlock_irqrestore(&catc->tx_lock, flags);
 
        catc->stats.tx_bytes += skb->len;
        catc->stats.tx_packets++;
 
        dev_kfree_skb(skb);
 
        return 0;
}
 
static void catc_tx_timeout(struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
 
        warn("Transmit timed out.");
        catc->tx_urb.transfer_flags |= USB_ASYNC_UNLINK;
        usb_unlink_urb(&catc->tx_urb);
}
 
/*
 * Control messages.
 */
 
static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
{
        int retval = usb_control_msg(catc->usbdev,
                dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
                 request, 0x40 | dir, value, index, buf, len, HZ);
        return retval < 0 ? retval : 0;
}
 
static void catc_ctrl_run(struct catc *catc)
{
        struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
        struct usb_device *usbdev = catc->usbdev;
        struct urb *urb = &catc->ctrl_urb;
        struct usb_ctrlrequest *dr = &catc->ctrl_dr;
        int status;
 
        dr->bRequest = q->request;
        dr->bRequestType = 0x40 | q->dir;
        dr->wValue = cpu_to_le16(q->value);
        dr->wIndex = cpu_to_le16(q->index);
        dr->wLength = cpu_to_le16(q->len);
 
        urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
        urb->transfer_buffer_length = q->len;
        urb->transfer_buffer = catc->ctrl_buf;
        urb->setup_packet = (void *) dr;
        urb->dev = usbdev;
 
        if (!q->dir && q->buf && q->len)
                memcpy(catc->ctrl_buf, q->buf, q->len);
 
        if ((status = usb_submit_urb(&catc->ctrl_urb)))
                err("submit(ctrl_urb) status %d", status);
}
 
static void catc_ctrl_done(struct urb *urb)
{
        struct catc *catc = urb->context;
        struct ctrl_queue *q;
        unsigned long flags;
 
        if (urb->status)
                dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length);
 
        spin_lock_irqsave(&catc->ctrl_lock, flags);
 
        q = catc->ctrl_queue + catc->ctrl_tail;
 
        if (q->dir) {
                if (q->buf && q->len)
                        memcpy(q->buf, catc->ctrl_buf, q->len);
                else
                        q->buf = catc->ctrl_buf;
        }
 
        if (q->callback)
                q->callback(catc, q);
 
        catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
 
        if (catc->ctrl_head != catc->ctrl_tail)
                catc_ctrl_run(catc);
        else
                clear_bit(CTRL_RUNNING, &catc->flags);
 
        spin_unlock_irqrestore(&catc->ctrl_lock, flags);
}
 
static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
        u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
{
        struct ctrl_queue *q;
        int retval = 0;
        unsigned long flags;
 
        spin_lock_irqsave(&catc->ctrl_lock, flags);
 
        q = catc->ctrl_queue + catc->ctrl_head;
 
        q->dir = dir;
        q->request = request;
        q->value = value;
        q->index = index;
        q->buf = buf;
        q->len = len;
        q->callback = callback;
 
        catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
 
        if (catc->ctrl_head == catc->ctrl_tail) {
                err("ctrl queue full");
                catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
                retval = -1;
        }
 
        if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
                catc_ctrl_run(catc);
 
        spin_unlock_irqrestore(&catc->ctrl_lock, flags);
 
        return retval;
}
 
/*
 * Statistics.
 */
 
static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
{
        int index = q->index - EthStats;
        u16 data, last;
 
        catc->stats_buf[index] = *((char *)q->buf);
 
        if (index & 1)
                return;
 
        data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
        last = catc->stats_vals[index >> 1];
 
        switch (index) {
                case TxSingleColl:
                case TxMultiColl:
                        catc->stats.collisions += data - last;
                        break;
                case TxExcessColl:
                        catc->stats.tx_aborted_errors += data - last;
                        catc->stats.tx_errors += data - last;
                        break;
                case RxFramErr:
                        catc->stats.rx_frame_errors += data - last;
                        catc->stats.rx_errors += data - last;
                        break;
        }
 
        catc->stats_vals[index >> 1] = data;
}
 
static void catc_stats_timer(unsigned long data)
{
        struct catc *catc = (void *) data;
        int i;
 
        for (i = 0; i < 8; i++)
                catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
 
        mod_timer(&catc->timer, jiffies + STATS_UPDATE);
}
 
static struct net_device_stats *catc_get_stats(struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
        return &catc->stats;
}
 
/*
 * Receive modes. Broadcast, Multicast, Promisc.
 */
 
static void catc_multicast(unsigned char *addr, u8 *multicast)
{
        u32 crc = ether_crc_le(6, addr);
        multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
}
 
static void catc_set_multicast_list(struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
        struct dev_mc_list *mc;
        u8 broadcast[6];
        u8 rx = RxEnable | RxPolarity | RxMultiCast;
        int i;
 
        memset(broadcast, 0xff, 6);
        memset(catc->multicast, 0, 64);
 
        catc_multicast(broadcast, catc->multicast);
        catc_multicast(netdev->dev_addr, catc->multicast);
 
        if (netdev->flags & IFF_PROMISC) {
                memset(catc->multicast, 0xff, 64);
                rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
        }
 
        if (netdev->flags & IFF_ALLMULTI) {
                memset(catc->multicast, 0xff, 64);
        } else {
                for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) {
                        u32 crc = ether_crc_le(6, mc->dmi_addr);
                        if (!catc->is_f5u011) {
                                catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
                        } else {
                                catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
                        }
                }
        }
        if (!catc->is_f5u011) {
                catc_set_reg_async(catc, RxUnit, rx);
                catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
        } else {
                f5u011_mchash_async(catc, catc->multicast);
                if (catc->rxmode[0] != rx) {
                        catc->rxmode[0] = rx;
                        dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0],
                            catc->rxmode[1]);
                        f5u011_rxmode_async(catc, catc->rxmode);
                }
        }
}
 
/*
 * ioctl's
 */
static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
{
        struct catc *catc = dev->priv;
        u32 cmd;
        char tmp[40];
 
        if (get_user(cmd, (u32 *)useraddr))
                return -EFAULT;
 
        switch (cmd) {
        /* get driver info */
        case ETHTOOL_GDRVINFO: {
                struct ethtool_drvinfo info = {ETHTOOL_GDRVINFO};
                strncpy(info.driver, driver_name, ETHTOOL_BUSINFO_LEN);
                strncpy(info.version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
                sprintf(tmp, "usb%d:%d", catc->usbdev->bus->busnum, catc->usbdev->devnum);
                strncpy(info.bus_info, tmp,ETHTOOL_BUSINFO_LEN);
                if (copy_to_user(useraddr, &info, sizeof(info)))
                        return -EFAULT;
                return 0;
        }
 
        /* get settings */
        case ETHTOOL_GSET:
                if (catc->is_f5u011) {
                        struct ethtool_cmd ecmd = {
                                ETHTOOL_GSET,
                                SUPPORTED_10baseT_Half | SUPPORTED_TP,
                                ADVERTISED_10baseT_Half | ADVERTISED_TP,
                                SPEED_10,
                                DUPLEX_HALF,
                                PORT_TP,
                                0,
                                XCVR_INTERNAL,
                                AUTONEG_DISABLE,
                                1,
                                1
                        };
                        if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
                                return -EFAULT;
                        return 0;
                } else {
                        return -EOPNOTSUPP;
                }
 
        /* get link status */
        case ETHTOOL_GLINK: {
                struct ethtool_value edata = {ETHTOOL_GLINK};
                edata.data = netif_carrier_ok(dev);
                if (copy_to_user(useraddr, &edata, sizeof(edata)))
                        return -EFAULT;
                return 0;
        }
        }
        /* Note that the ethtool user space code requires EOPNOTSUPP */
        return -EOPNOTSUPP;
}
 
static int catc_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
        switch(cmd) {
        case SIOCETHTOOL:
               return netdev_ethtool_ioctl(dev, (void *) rq->ifr_data);
        default:
               return -ENOTTY; /* Apparently this is the standard ioctl errno */
        }
}
 
 
/*
 * Open, close.
 */
 
static int catc_open(struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
        int status;
 
        catc->irq_urb.dev = catc->usbdev;
        if ((status = usb_submit_urb(&catc->irq_urb)) < 0) {
                err("submit(irq_urb) status %d", status);
                return -1;
        }
 
        netif_start_queue(netdev);
 
        if (!catc->is_f5u011)
                mod_timer(&catc->timer, jiffies + STATS_UPDATE);
 
        return 0;
}
 
static int catc_stop(struct net_device *netdev)
{
        struct catc *catc = netdev->priv;
 
        netif_stop_queue(netdev);
 
        if (!catc->is_f5u011)
                del_timer_sync(&catc->timer);
 
        usb_unlink_urb(&catc->rx_urb);
        usb_unlink_urb(&catc->tx_urb);
        usb_unlink_urb(&catc->irq_urb);
        usb_unlink_urb(&catc->ctrl_urb);
 
        return 0;
}
 
/*
 * USB probe, disconnect.
 */
 
static void *catc_probe(struct usb_device *usbdev, unsigned int ifnum, const struct usb_device_id *id)
{
        struct net_device *netdev;
        struct catc *catc;
        u8 broadcast[6];
        int i, pktsz;
 
        if (usb_set_interface(usbdev, ifnum, 1)) {
                err("Can't set altsetting 1.");
                return NULL;
        }
 
        catc = kmalloc(sizeof(struct catc), GFP_KERNEL);
        if (!catc)
                return NULL;
 
        memset(catc, 0, sizeof(struct catc));
 
        netdev = init_etherdev(0, 0);
        if (!netdev) {
                kfree(catc);
                return NULL;
        }
 
        netdev->open = catc_open;
        netdev->hard_start_xmit = catc_hard_start_xmit;
        netdev->stop = catc_stop;
        netdev->get_stats = catc_get_stats;
        netdev->tx_timeout = catc_tx_timeout;
        netdev->watchdog_timeo = TX_TIMEOUT;
        netdev->set_multicast_list = catc_set_multicast_list;
        netdev->do_ioctl = catc_ioctl;
        netdev->priv = catc;
 
        catc->usbdev = usbdev;
        catc->netdev = netdev;
 
        catc->tx_lock = SPIN_LOCK_UNLOCKED;
        catc->ctrl_lock = SPIN_LOCK_UNLOCKED;
 
        init_timer(&catc->timer);
        catc->timer.data = (long) catc;
        catc->timer.function = catc_stats_timer;
 
        /* The F5U011 has the same vendor/product as the netmate
         *  but a device version of 0x130
         */
        if (usbdev->descriptor.idVendor == 0x0423 &&
            usbdev->descriptor.idProduct == 0xa &&
            catc->usbdev->descriptor.bcdDevice == 0x0130) {
                dbg("Testing for f5u011");
                catc->is_f5u011 = 1;
                atomic_set(&catc->recq_sz, 0);
                pktsz = RX_PKT_SZ;
        } else {
                pktsz = RX_MAX_BURST * (PKT_SZ + 2);
        }
 
        FILL_CONTROL_URB(&catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
                NULL, NULL, 0, catc_ctrl_done, catc);
 
        FILL_BULK_URB(&catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
                NULL, 0, catc_tx_done, catc);
 
        FILL_BULK_URB(&catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
                catc->rx_buf, pktsz, catc_rx_done, catc);
 
        FILL_INT_URB(&catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
                catc->irq_buf, 2, catc_irq_done, catc, 1);
 
        if (!catc->is_f5u011) {
                dbg("Checking memory size\n");
 
                i = 0x12345678;
                catc_write_mem(catc, 0x7a80, &i, 4);
                i = 0x87654321;
                catc_write_mem(catc, 0xfa80, &i, 4);
                catc_read_mem(catc, 0x7a80, &i, 4);
 
                switch (i) {
                case 0x12345678:
                        catc_set_reg(catc, TxBufCount, 8);
                        catc_set_reg(catc, RxBufCount, 32);
                        dbg("64k Memory\n");
                        break;
                default:
                        warn("Couldn't detect memory size, assuming 32k");
                case 0x87654321:
                        catc_set_reg(catc, TxBufCount, 4);
                        catc_set_reg(catc, RxBufCount, 16);
                        dbg("32k Memory\n");
                        break;
                }
 
                dbg("Getting MAC from SEEROM.");
 
                catc_get_mac(catc, netdev->dev_addr);
 
                dbg("Setting MAC into registers.");
 
                for (i = 0; i < 6; i++)
                        catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
 
                dbg("Filling the multicast list.");
 
                memset(broadcast, 0xff, 6);
                catc_multicast(broadcast, catc->multicast);
                catc_multicast(netdev->dev_addr, catc->multicast);
                catc_write_mem(catc, 0xfa80, catc->multicast, 64);
 
                dbg("Clearing error counters.");
 
                for (i = 0; i < 8; i++)
                        catc_set_reg(catc, EthStats + i, 0);
                catc->last_stats = jiffies;
 
                dbg("Enabling.");
 
                catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
                catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
                catc_set_reg(catc, LEDCtrl, LEDLink);
                catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
        } else {
                dbg("Performing reset\n");
                catc_reset(catc);
                catc_get_mac(catc, netdev->dev_addr);
 
                dbg("Setting RX Mode");
                catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
                catc->rxmode[1] = 0;
                f5u011_rxmode(catc, catc->rxmode);
        }
        dbg("Init done.");
        printk(KERN_INFO "%s: %s USB Ethernet at usb%d:%d.%d, ",
               netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
               usbdev->bus->busnum, usbdev->devnum, ifnum);
        for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
        printk("%2.2x.\n", netdev->dev_addr[i]);
        return catc;
}
 
static void catc_disconnect(struct usb_device *usbdev, void *dev_ptr)
{
        struct catc *catc = dev_ptr;
        unregister_netdev(catc->netdev);
        kfree(catc->netdev);
        kfree(catc);
}
 
/*
 * Module functions and tables.
 */
 
static struct usb_device_id catc_id_table [] = {
        { USB_DEVICE(0x0423, 0xa) },    /* CATC Netmate, Belkin F5U011 */
        { USB_DEVICE(0x0423, 0xc) },    /* CATC Netmate II, Belkin F5U111 */
        { USB_DEVICE(0x08d1, 0x1) },    /* smartBridges smartNIC */
        { }
};
 
MODULE_DEVICE_TABLE(usb, catc_id_table);
 
static struct usb_driver catc_driver = {
        name:           driver_name,
        probe:          catc_probe,
        disconnect:     catc_disconnect,
        id_table:       catc_id_table,
};
 
static int __init catc_init(void)
{
        info(DRIVER_VERSION " " DRIVER_DESC);
        usb_register(&catc_driver);
        return 0;
}
 
static void __exit catc_exit(void)
{
        usb_deregister(&catc_driver);
}
 
module_init(catc_init);
module_exit(catc_exit);
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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [usb/] [catc.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1275	phoenix	`/*`
2			`* Copyright (c) 2001 Vojtech Pavlik`
3			`*`
4			`* CATC EL1210A NetMate USB Ethernet driver`
5			`*`
6			`* Sponsored by SuSE`
7			`*`
8			`* Based on the work of`
9			`* Donald Becker`
10			`*`
11			`* Old chipset support added by Simon Evans <spse@secret.org.uk> 2002`
12			`* - adds support for Belkin F5U011`
13			`*/`
14
15			`/*`
16			`* This program is free software; you can redistribute it and/or modify`
17			`* it under the terms of the GNU General Public License as published by`
18			`* the Free Software Foundation; either version 2 of the License, or`
19			`* (at your option) any later version.`
20			`*`
21			`* This program is distributed in the hope that it will be useful,`
22			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
23			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
24			`* GNU General Public License for more details.`
25			`*`
26			`* You should have received a copy of the GNU General Public License`
27			`* along with this program; if not, write to the Free Software`
28			`* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA`
29			`*`
30			`* Should you need to contact me, the author, you can do so either by`
31			`* e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:`
32			`* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic`
33			`*/`
34
35			`#include <linux/init.h>`
36			`#include <linux/module.h>`
37			`#include <linux/kernel.h>`
38			`#include <linux/string.h>`
39			`#include <linux/slab.h>`
40			`#include <linux/netdevice.h>`