| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * 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 |
| */ |
| |
| /* |
| * |
| * 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/module.h> |
| #include <linux/kernel.h> |
| #include <linux/string.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 <linux/bitops.h> |
| #include <linux/gfp.h> |
| #include <linux/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; |
| |
| 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; |
| int status = urb->status; |
| |
| if (!catc->is_f5u011) { |
| clear_bit(RX_RUNNING, &catc->flags); |
| pkt_offset = 2; |
| } |
| |
| if (status) { |
| dev_dbg(&urb->dev->dev, "rx_done, status %d, length %d\n", |
| status, urb->actual_length); |
| return; |
| } |
| |
| do { |
| if(!catc->is_f5u011) { |
| pkt_len = le16_to_cpup((__le16*)pkt_start); |
| if (pkt_len > urb->actual_length) { |
| catc->netdev->stats.rx_length_errors++; |
| catc->netdev->stats.rx_errors++; |
| break; |
| } |
| } else { |
| pkt_len = urb->actual_length; |
| } |
| |
| if (!(skb = dev_alloc_skb(pkt_len))) |
| return; |
| |
| skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len); |
| skb_put(skb, pkt_len); |
| |
| skb->protocol = eth_type_trans(skb, catc->netdev); |
| netif_rx(skb); |
| |
| catc->netdev->stats.rx_packets++; |
| catc->netdev->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); |
| |
| if (catc->is_f5u011) { |
| if (atomic_read(&catc->recq_sz)) { |
| int state; |
| atomic_dec(&catc->recq_sz); |
| netdev_dbg(catc->netdev, "getting extra packet\n"); |
| urb->dev = catc->usbdev; |
| if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
| netdev_dbg(catc->netdev, |
| "submit(rx_urb) status %d\n", state); |
| } |
| } 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 = urb->status; |
| unsigned int hasdata = 0, linksts = LinkNoChange; |
| int res; |
| |
| 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((__be16*)data) & 0x0fff); |
| if (data[0] == 0x90) |
| linksts = LinkGood; |
| else if (data[0] == 0xA0) |
| linksts = LinkBad; |
| } |
| |
| switch (status) { |
| case 0: /* success */ |
| break; |
| case -ECONNRESET: /* unlink */ |
| case -ENOENT: |
| case -ESHUTDOWN: |
| return; |
| /* -EPIPE: should clear the halt */ |
| default: /* error */ |
| dev_dbg(&urb->dev->dev, |
| "irq_done, status %d, data %02x %02x.\n", |
| status, data[0], data[1]); |
| goto resubmit; |
| } |
| |
| if (linksts == LinkGood) { |
| netif_carrier_on(catc->netdev); |
| netdev_dbg(catc->netdev, "link ok\n"); |
| } |
| |
| if (linksts == LinkBad) { |
| netif_carrier_off(catc->netdev); |
| netdev_dbg(catc->netdev, "link bad\n"); |
| } |
| |
| 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 ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { |
| dev_err(&catc->usbdev->dev, |
| "submit(rx_urb) status %d\n", res); |
| } |
| } |
| } |
| resubmit: |
| res = usb_submit_urb (urb, GFP_ATOMIC); |
| if (res) |
| dev_err(&catc->usbdev->dev, |
| "can't resubmit intr, %s-%s, status %d\n", |
| catc->usbdev->bus->bus_name, |
| catc->usbdev->devpath, res); |
| } |
| |
| /* |
| * Transmit routines. |
| */ |
| |
| static int 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, GFP_ATOMIC)) < 0) |
| dev_err(&catc->usbdev->dev, "submit(tx_urb), status %d\n", |
| status); |
| |
| catc->tx_idx = !catc->tx_idx; |
| catc->tx_ptr = 0; |
| |
| netif_trans_update(catc->netdev); |
| return status; |
| } |
| |
| static void catc_tx_done(struct urb *urb) |
| { |
| struct catc *catc = urb->context; |
| unsigned long flags; |
| int r, status = urb->status; |
| |
| if (status == -ECONNRESET) { |
| dev_dbg(&urb->dev->dev, "Tx Reset.\n"); |
| urb->status = 0; |
| netif_trans_update(catc->netdev); |
| catc->netdev->stats.tx_errors++; |
| clear_bit(TX_RUNNING, &catc->flags); |
| netif_wake_queue(catc->netdev); |
| return; |
| } |
| |
| if (status) { |
| dev_dbg(&urb->dev->dev, "tx_done, status %d, length %d\n", |
| status, urb->actual_length); |
| return; |
| } |
| |
| spin_lock_irqsave(&catc->tx_lock, flags); |
| |
| if (catc->tx_ptr) { |
| r = catc_tx_run(catc); |
| if (unlikely(r < 0)) |
| clear_bit(TX_RUNNING, &catc->flags); |
| } else { |
| clear_bit(TX_RUNNING, &catc->flags); |
| } |
| |
| netif_wake_queue(catc->netdev); |
| |
| spin_unlock_irqrestore(&catc->tx_lock, flags); |
| } |
| |
| static netdev_tx_t catc_start_xmit(struct sk_buff *skb, |
| struct net_device *netdev) |
| { |
| struct catc *catc = netdev_priv(netdev); |
| unsigned long flags; |
| int r = 0; |
| 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; |
| if (catc->is_f5u011) |
| *(__be16 *)tx_buf = cpu_to_be16(skb->len); |
| else |
| *(__le16 *)tx_buf = cpu_to_le16(skb->len); |
| skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); |
| catc->tx_ptr += skb->len + 2; |
| |
| if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { |
| r = catc_tx_run(catc); |
| if (r < 0) |
| clear_bit(TX_RUNNING, &catc->flags); |
| } |
| |
| 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); |
| |
| if (r >= 0) { |
| catc->netdev->stats.tx_bytes += skb->len; |
| catc->netdev->stats.tx_packets++; |
| } |
| |
| dev_kfree_skb(skb); |
| |
| return NETDEV_TX_OK; |
| } |
| |
| static void catc_tx_timeout(struct net_device *netdev, unsigned int txqueue) |
| { |
| struct catc *catc = netdev_priv(netdev); |
| |
| dev_warn(&netdev->dev, "Transmit timed out.\n"); |
| 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, 1000); |
| 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, GFP_ATOMIC))) |
| dev_err(&catc->usbdev->dev, "submit(ctrl_urb) status %d\n", |
| status); |
| } |
| |
| static void catc_ctrl_done(struct urb *urb) |
| { |
| struct catc *catc = urb->context; |
| struct ctrl_queue *q; |
| unsigned long flags; |
| int status = urb->status; |
| |
| if (status) |
| dev_dbg(&urb->dev->dev, "ctrl_done, status %d, len %d.\n", |
| 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) { |
| dev_err(&catc->usbdev->dev, "ctrl queue full\n"); |
| 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->netdev->stats.collisions += data - last; |
| break; |
| case TxExcessColl: |
| catc->netdev->stats.tx_aborted_errors += data - last; |
| catc->netdev->stats.tx_errors += data - last; |
| break; |
| case RxFramErr: |
| catc->netdev->stats.rx_frame_errors += data - last; |
| catc->netdev->stats.rx_errors += data - last; |
| break; |
| } |
| |
| catc->stats_vals[index >> 1] = data; |
| } |
| |
| static void catc_stats_timer(struct timer_list *t) |
| { |
| struct catc *catc = from_timer(catc, t, timer); |
| 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); |
| } |
| |
| /* |
| * Receive modes. Broadcast, Multicast, Promisc. |
| */ |
| |
| static void catc_multicast(const unsigned char *addr, u8 *multicast) |
| { |
| u32 crc; |
| |
| 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(netdev); |
| struct netdev_hw_addr *ha; |
| u8 broadcast[ETH_ALEN]; |
| u8 rx = RxEnable | RxPolarity | RxMultiCast; |
| |
| eth_broadcast_addr(broadcast); |
| 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 { |
| netdev_for_each_mc_addr(ha, netdev) { |
| u32 crc = ether_crc_le(6, ha->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; |
| netdev_dbg(catc->netdev, |
| "Setting RX mode to %2.2X %2.2X\n", |
| catc->rxmode[0], catc->rxmode[1]); |
| f5u011_rxmode_async(catc, catc->rxmode); |
| } |
| } |
| } |
| |
| static void catc_get_drvinfo(struct net_device *dev, |
| struct ethtool_drvinfo *info) |
| { |
| struct catc *catc = netdev_priv(dev); |
| strlcpy(info->driver, driver_name, sizeof(info->driver)); |
| strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); |
| usb_make_path(catc->usbdev, info->bus_info, sizeof(info->bus_info)); |
| } |
| |
| static int catc_get_link_ksettings(struct net_device *dev, |
| struct ethtool_link_ksettings *cmd) |
| { |
| struct catc *catc = netdev_priv(dev); |
| if (!catc->is_f5u011) |
| return -EOPNOTSUPP; |
| |
| ethtool_link_ksettings_zero_link_mode(cmd, supported); |
| ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); |
| ethtool_link_ksettings_add_link_mode(cmd, supported, TP); |
| |
| ethtool_link_ksettings_zero_link_mode(cmd, advertising); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); |
| |
| cmd->base.speed = SPEED_10; |
| cmd->base.duplex = DUPLEX_HALF; |
| cmd->base.port = PORT_TP; |
| cmd->base.phy_address = 0; |
| cmd->base.autoneg = AUTONEG_DISABLE; |
| |
| return 0; |
| } |
| |
| static const struct ethtool_ops ops = { |
| .get_drvinfo = catc_get_drvinfo, |
| .get_link = ethtool_op_get_link, |
| .get_link_ksettings = catc_get_link_ksettings, |
| }; |
| |
| /* |
| * Open, close. |
| */ |
| |
| static int catc_open(struct net_device *netdev) |
| { |
| struct catc *catc = netdev_priv(netdev); |
| int status; |
| |
| catc->irq_urb->dev = catc->usbdev; |
| if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { |
| dev_err(&catc->usbdev->dev, "submit(irq_urb) status %d\n", |
| 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(netdev); |
| |
| netif_stop_queue(netdev); |
| |
| if (!catc->is_f5u011) |
| del_timer_sync(&catc->timer); |
| |
| usb_kill_urb(catc->rx_urb); |
| usb_kill_urb(catc->tx_urb); |
| usb_kill_urb(catc->irq_urb); |
| usb_kill_urb(catc->ctrl_urb); |
| |
| return 0; |
| } |
| |
| static const struct net_device_ops catc_netdev_ops = { |
| .ndo_open = catc_open, |
| .ndo_stop = catc_stop, |
| .ndo_start_xmit = catc_start_xmit, |
| |
| .ndo_tx_timeout = catc_tx_timeout, |
| .ndo_set_rx_mode = catc_set_multicast_list, |
| .ndo_set_mac_address = eth_mac_addr, |
| .ndo_validate_addr = eth_validate_addr, |
| }; |
| |
| /* |
| * USB probe, disconnect. |
| */ |
| |
| static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) |
| { |
| struct device *dev = &intf->dev; |
| struct usb_device *usbdev = interface_to_usbdev(intf); |
| struct net_device *netdev; |
| struct catc *catc; |
| u8 broadcast[ETH_ALEN]; |
| int pktsz, ret; |
| |
| if (usb_set_interface(usbdev, |
| intf->altsetting->desc.bInterfaceNumber, 1)) { |
| dev_err(dev, "Can't set altsetting 1.\n"); |
| return -EIO; |
| } |
| |
| netdev = alloc_etherdev(sizeof(struct catc)); |
| if (!netdev) |
| return -ENOMEM; |
| |
| catc = netdev_priv(netdev); |
| |
| netdev->netdev_ops = &catc_netdev_ops; |
| netdev->watchdog_timeo = TX_TIMEOUT; |
| netdev->ethtool_ops = &ops; |
| |
| catc->usbdev = usbdev; |
| catc->netdev = netdev; |
| |
| spin_lock_init(&catc->tx_lock); |
| spin_lock_init(&catc->ctrl_lock); |
| |
| timer_setup(&catc->timer, catc_stats_timer, 0); |
| |
| catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
| catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); |
| if ((!catc->ctrl_urb) || (!catc->tx_urb) || |
| (!catc->rx_urb) || (!catc->irq_urb)) { |
| dev_err(&intf->dev, "No free urbs available.\n"); |
| ret = -ENOMEM; |
| goto fail_free; |
| } |
| |
| /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ |
| if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && |
| le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && |
| le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { |
| dev_dbg(dev, "Testing for f5u011\n"); |
| catc->is_f5u011 = 1; |
| atomic_set(&catc->recq_sz, 0); |
| pktsz = RX_PKT_SZ; |
| } else { |
| pktsz = RX_MAX_BURST * (PKT_SZ + 2); |
| } |
| |
| usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), |
| NULL, NULL, 0, catc_ctrl_done, catc); |
| |
| usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), |
| NULL, 0, catc_tx_done, catc); |
| |
| usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), |
| catc->rx_buf, pktsz, catc_rx_done, catc); |
| |
| usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), |
| catc->irq_buf, 2, catc_irq_done, catc, 1); |
| |
| if (!catc->is_f5u011) { |
| u32 *buf; |
| int i; |
| |
| dev_dbg(dev, "Checking memory size\n"); |
| |
| buf = kmalloc(4, GFP_KERNEL); |
| if (!buf) { |
| ret = -ENOMEM; |
| goto fail_free; |
| } |
| |
| *buf = 0x12345678; |
| catc_write_mem(catc, 0x7a80, buf, 4); |
| *buf = 0x87654321; |
| catc_write_mem(catc, 0xfa80, buf, 4); |
| catc_read_mem(catc, 0x7a80, buf, 4); |
| |
| switch (*buf) { |
| case 0x12345678: |
| catc_set_reg(catc, TxBufCount, 8); |
| catc_set_reg(catc, RxBufCount, 32); |
| dev_dbg(dev, "64k Memory\n"); |
| break; |
| default: |
| dev_warn(&intf->dev, |
| "Couldn't detect memory size, assuming 32k\n"); |
| fallthrough; |
| case 0x87654321: |
| catc_set_reg(catc, TxBufCount, 4); |
| catc_set_reg(catc, RxBufCount, 16); |
| dev_dbg(dev, "32k Memory\n"); |
| break; |
| } |
| |
| kfree(buf); |
| |
| dev_dbg(dev, "Getting MAC from SEEROM.\n"); |
| |
| catc_get_mac(catc, netdev->dev_addr); |
| |
| dev_dbg(dev, "Setting MAC into registers.\n"); |
| |
| for (i = 0; i < 6; i++) |
| catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); |
| |
| dev_dbg(dev, "Filling the multicast list.\n"); |
| |
| eth_broadcast_addr(broadcast); |
| catc_multicast(broadcast, catc->multicast); |
| catc_multicast(netdev->dev_addr, catc->multicast); |
| catc_write_mem(catc, 0xfa80, catc->multicast, 64); |
| |
| dev_dbg(dev, "Clearing error counters.\n"); |
| |
| for (i = 0; i < 8; i++) |
| catc_set_reg(catc, EthStats + i, 0); |
| catc->last_stats = jiffies; |
| |
| dev_dbg(dev, "Enabling.\n"); |
| |
| 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 { |
| dev_dbg(dev, "Performing reset\n"); |
| catc_reset(catc); |
| catc_get_mac(catc, netdev->dev_addr); |
| |
| dev_dbg(dev, "Setting RX Mode\n"); |
| catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; |
| catc->rxmode[1] = 0; |
| f5u011_rxmode(catc, catc->rxmode); |
| } |
| dev_dbg(dev, "Init done.\n"); |
| printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n", |
| netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", |
| usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr); |
| usb_set_intfdata(intf, catc); |
| |
| SET_NETDEV_DEV(netdev, &intf->dev); |
| ret = register_netdev(netdev); |
| if (ret) |
| goto fail_clear_intfdata; |
| |
| return 0; |
| |
| fail_clear_intfdata: |
| usb_set_intfdata(intf, NULL); |
| fail_free: |
| usb_free_urb(catc->ctrl_urb); |
| usb_free_urb(catc->tx_urb); |
| usb_free_urb(catc->rx_urb); |
| usb_free_urb(catc->irq_urb); |
| free_netdev(netdev); |
| return ret; |
| } |
| |
| static void catc_disconnect(struct usb_interface *intf) |
| { |
| struct catc *catc = usb_get_intfdata(intf); |
| |
| usb_set_intfdata(intf, NULL); |
| if (catc) { |
| unregister_netdev(catc->netdev); |
| usb_free_urb(catc->ctrl_urb); |
| usb_free_urb(catc->tx_urb); |
| usb_free_urb(catc->rx_urb); |
| usb_free_urb(catc->irq_urb); |
| free_netdev(catc->netdev); |
| } |
| } |
| |
| /* |
| * Module functions and tables. |
| */ |
| |
| static const 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, |
| .disable_hub_initiated_lpm = 1, |
| }; |
| |
| module_usb_driver(catc_driver); |