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-rw-r--r--drivers/net/usb/catc.c981
1 files changed, 981 insertions, 0 deletions
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
new file mode 100644
index 0000000000..ff439ef535
--- /dev/null
+++ b/drivers/net/usb/catc.c
@@ -0,0 +1,981 @@
+// 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, 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);
+ strscpy(info->driver, driver_name, sizeof(info->driver));
+ strscpy(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];
+ u8 *macbuf;
+ int pktsz, ret = -ENOMEM;
+
+ macbuf = kmalloc(ETH_ALEN, GFP_KERNEL);
+ if (!macbuf)
+ goto error;
+
+ if (usb_set_interface(usbdev,
+ intf->altsetting->desc.bInterfaceNumber, 1)) {
+ dev_err(dev, "Can't set altsetting 1.\n");
+ ret = -EIO;
+ goto fail_mem;
+ }
+
+ netdev = alloc_etherdev(sizeof(struct catc));
+ if (!netdev)
+ goto fail_mem;
+
+ 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, macbuf);
+ eth_hw_addr_set(netdev, macbuf);
+
+ 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, macbuf);
+ eth_hw_addr_set(netdev, macbuf);
+
+ 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;
+
+ kfree(macbuf);
+ 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);
+fail_mem:
+ kfree(macbuf);
+error:
+ 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 08:24:30 +0000