--- /dev/null
+/*
+ * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * ChangeLog:
+ * .... Most of the time spent on reading sources & docs.
+ * v0.2.x First official release for the Linux kernel.
+ * v0.3.0 Beutified and structured, some bugs fixed.
+ * v0.3.x URBifying bulk requests and bugfixing. First relatively
+ * stable release. Still can touch device's registers only
+ * from top-halves.
+ * v0.4.0 Control messages remained unurbified are now URBs.
+ * Now we can touch the HW at any time.
+ * v0.4.9 Control urbs again use process context to wait. Argh...
+ * Some long standing bugs (enable_net_traffic) fixed.
+ * Also nasty trick about resubmiting control urb from
+ * interrupt context used. Please let me know how it
+ * behaves. Pegasus II support added since this version.
+ * TODO: suppressing HCD warnings spewage on disconnect.
+ * v0.4.13 Ethernet address is now set at probe(), not at open()
+ * time as this seems to break dhcpd.
+ * v0.5.0 branch to 2.5.x kernels
+ * v0.5.1 ethtool support added
+ * v0.5.5 rx socket buffers are in a pool and the their allocation
+ * is out of the interrupt routine.
+ * ...
+ * v0.9.3 simplified [get|set]_register(s), async update registers
+ * logic revisited, receive skb_pool removed.
+ */
+
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/module.h>
+#include <asm/byteorder.h>
+#include <asm/uaccess.h>
+#include "pegasus.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v0.9.3 (2013/04/25)"
+#define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>"
+#define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
+
+static const char driver_name[] = "pegasus";
+
+#undef PEGASUS_WRITE_EEPROM
+#define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
+ BMSR_100FULL | BMSR_ANEGCAPABLE)
+
+static bool loopback;
+static bool mii_mode;
+static char *devid;
+
+static struct usb_eth_dev usb_dev_id[] = {
+#define PEGASUS_DEV(pn, vid, pid, flags) \
+ {.name = pn, .vendor = vid, .device = pid, .private = flags},
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+ PEGASUS_DEV(pn, vid, pid, flags)
+#include "pegasus.h"
+#undef PEGASUS_DEV
+#undef PEGASUS_DEV_CLASS
+ {NULL, 0, 0, 0},
+ {NULL, 0, 0, 0}
+};
+
+static struct usb_device_id pegasus_ids[] = {
+#define PEGASUS_DEV(pn, vid, pid, flags) \
+ {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
+/*
+ * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
+ * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
+ * ignore adaptors belonging to the "Wireless" class 0xE0. For this one
+ * case anyway, seeing as the pegasus is for "Wired" adaptors.
+ */
+#define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
+ {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
+ .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
+#include "pegasus.h"
+#undef PEGASUS_DEV
+#undef PEGASUS_DEV_CLASS
+ {},
+ {}
+};
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+module_param(loopback, bool, 0);
+module_param(mii_mode, bool, 0);
+module_param(devid, charp, 0);
+MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
+MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
+MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
+
+/* use ethtool to change the level for any given device */
+static int msg_level = -1;
+module_param(msg_level, int, 0);
+MODULE_PARM_DESC(msg_level, "Override default message level");
+
+MODULE_DEVICE_TABLE(usb, pegasus_ids);
+static const struct net_device_ops pegasus_netdev_ops;
+
+/*****/
+
+static void async_ctrl_callback(struct urb *urb)
+{
+ struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
+ int status = urb->status;
+
+ if (status < 0)
+ dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
+ kfree(req);
+ usb_free_urb(urb);
+}
+
+static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+{
+ int ret;
+
+ ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0,
+ indx, data, size, 1000);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ return ret;
+}
+
+static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
+{
+ int ret;
+
+ ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0,
+ indx, data, size, 100);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ return ret;
+}
+
+static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
+{
+ int ret;
+
+ ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0),
+ PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data,
+ indx, &data, 1, 1000);
+ if (ret < 0)
+ netif_dbg(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ return ret;
+}
+
+static int update_eth_regs_async(pegasus_t *pegasus)
+{
+ int ret = -ENOMEM;
+ struct urb *async_urb;
+ struct usb_ctrlrequest *req;
+
+ req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
+ if (req == NULL)
+ return ret;
+
+ async_urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (async_urb == NULL) {
+ kfree(req);
+ return ret;
+ }
+ req->bRequestType = PEGASUS_REQT_WRITE;
+ req->bRequest = PEGASUS_REQ_SET_REGS;
+ req->wValue = cpu_to_le16(0);
+ req->wIndex = cpu_to_le16(EthCtrl0);
+ req->wLength = cpu_to_le16(3);
+
+ usb_fill_control_urb(async_urb, pegasus->usb,
+ usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
+ pegasus->eth_regs, 3, async_ctrl_callback, req);
+
+ ret = usb_submit_urb(async_urb, GFP_ATOMIC);
+ if (ret) {
+ if (ret == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_err(pegasus, drv, pegasus->net,
+ "%s returned %d\n", __func__, ret);
+ }
+ return ret;
+}
+
+static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
+{
+ int i;
+ __u8 data[4] = { phy, 0, 0, indx };
+ __le16 regdi;
+ int ret = -ETIMEDOUT;
+
+ if (cmd & PHY_WRITE) {
+ __le16 *t = (__le16 *) & data[1];
+ *t = cpu_to_le16(*regd);
+ }
+ set_register(p, PhyCtrl, 0);
+ set_registers(p, PhyAddr, sizeof(data), data);
+ set_register(p, PhyCtrl, (indx | cmd));
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(p, PhyCtrl, 1, data);
+ if (ret < 0)
+ goto fail;
+ if (data[0] & PHY_DONE)
+ break;
+ }
+ if (i >= REG_TIMEOUT)
+ goto fail;
+ if (cmd & PHY_READ) {
+ ret = get_registers(p, PhyData, 2, ®di);
+ *regd = le16_to_cpu(regdi);
+ return ret;
+ }
+ return 0;
+fail:
+ netif_dbg(p, drv, p->net, "%s failed\n", __func__);
+ return ret;
+}
+
+/* Returns non-negative int on success, error on failure */
+static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+ return __mii_op(pegasus, phy, indx, regd, PHY_READ);
+}
+
+/* Returns zero on success, error on failure */
+static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
+{
+ return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
+}
+
+static int mdio_read(struct net_device *dev, int phy_id, int loc)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u16 res;
+
+ read_mii_word(pegasus, phy_id, loc, &res);
+ return (int)res;
+}
+
+static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u16 data = val;
+
+ write_mii_word(pegasus, phy_id, loc, &data);
+}
+
+static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
+{
+ int i;
+ __u8 tmp;
+ __le16 retdatai;
+ int ret;
+
+ set_register(pegasus, EpromCtrl, 0);
+ set_register(pegasus, EpromOffset, index);
+ set_register(pegasus, EpromCtrl, EPROM_READ);
+
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
+ if (tmp & EPROM_DONE)
+ break;
+ if (ret == -ESHUTDOWN)
+ goto fail;
+ }
+ if (i >= REG_TIMEOUT)
+ goto fail;
+
+ ret = get_registers(pegasus, EpromData, 2, &retdatai);
+ *retdata = le16_to_cpu(retdatai);
+ return ret;
+
+fail:
+ netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
+ return -ETIMEDOUT;
+}
+
+#ifdef PEGASUS_WRITE_EEPROM
+static inline void enable_eprom_write(pegasus_t *pegasus)
+{
+ __u8 tmp;
+
+ get_registers(pegasus, EthCtrl2, 1, &tmp);
+ set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
+}
+
+static inline void disable_eprom_write(pegasus_t *pegasus)
+{
+ __u8 tmp;
+
+ get_registers(pegasus, EthCtrl2, 1, &tmp);
+ set_register(pegasus, EpromCtrl, 0);
+ set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
+}
+
+static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
+{
+ int i;
+ __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
+ int ret;
+ __le16 le_data = cpu_to_le16(data);
+
+ set_registers(pegasus, EpromOffset, 4, d);
+ enable_eprom_write(pegasus);
+ set_register(pegasus, EpromOffset, index);
+ set_registers(pegasus, EpromData, 2, &le_data);
+ set_register(pegasus, EpromCtrl, EPROM_WRITE);
+
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
+ if (ret == -ESHUTDOWN)
+ goto fail;
+ if (tmp & EPROM_DONE)
+ break;
+ }
+ disable_eprom_write(pegasus);
+ if (i >= REG_TIMEOUT)
+ goto fail;
+
+ return ret;
+
+fail:
+ netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__);
+ return -ETIMEDOUT;
+}
+#endif /* PEGASUS_WRITE_EEPROM */
+
+static inline void get_node_id(pegasus_t *pegasus, __u8 *id)
+{
+ int i;
+ __u16 w16;
+
+ for (i = 0; i < 3; i++) {
+ read_eprom_word(pegasus, i, &w16);
+ ((__le16 *) id)[i] = cpu_to_le16(w16);
+ }
+}
+
+static void set_ethernet_addr(pegasus_t *pegasus)
+{
+ __u8 node_id[6];
+
+ if (pegasus->features & PEGASUS_II) {
+ get_registers(pegasus, 0x10, sizeof(node_id), node_id);
+ } else {
+ get_node_id(pegasus, node_id);
+ set_registers(pegasus, EthID, sizeof(node_id), node_id);
+ }
+ memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id));
+}
+
+static inline int reset_mac(pegasus_t *pegasus)
+{
+ __u8 data = 0x8;
+ int i;
+
+ set_register(pegasus, EthCtrl1, data);
+ for (i = 0; i < REG_TIMEOUT; i++) {
+ get_registers(pegasus, EthCtrl1, 1, &data);
+ if (~data & 0x08) {
+ if (loopback)
+ break;
+ if (mii_mode && (pegasus->features & HAS_HOME_PNA))
+ set_register(pegasus, Gpio1, 0x34);
+ else
+ set_register(pegasus, Gpio1, 0x26);
+ set_register(pegasus, Gpio0, pegasus->features);
+ set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
+ break;
+ }
+ }
+ if (i == REG_TIMEOUT)
+ return -ETIMEDOUT;
+
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
+ set_register(pegasus, Gpio0, 0x24);
+ set_register(pegasus, Gpio0, 0x26);
+ }
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
+ __u16 auxmode;
+ read_mii_word(pegasus, 3, 0x1b, &auxmode);
+ auxmode |= 4;
+ write_mii_word(pegasus, 3, 0x1b, &auxmode);
+ }
+
+ return 0;
+}
+
+static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
+{
+ __u16 linkpart;
+ __u8 data[4];
+ pegasus_t *pegasus = netdev_priv(dev);
+ int ret;
+
+ read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
+ data[0] = 0xc9;
+ data[1] = 0;
+ if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
+ data[1] |= 0x20; /* set full duplex */
+ if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
+ data[1] |= 0x10; /* set 100 Mbps */
+ if (mii_mode)
+ data[1] = 0;
+ data[2] = loopback ? 0x09 : 0x01;
+
+ memcpy(pegasus->eth_regs, data, sizeof(data));
+ ret = set_registers(pegasus, EthCtrl0, 3, data);
+
+ if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
+ usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
+ u16 auxmode;
+ read_mii_word(pegasus, 0, 0x1b, &auxmode);
+ auxmode |= 4;
+ write_mii_word(pegasus, 0, 0x1b, &auxmode);
+ }
+
+ return ret;
+}
+
+static void read_bulk_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int rx_status, count = urb->actual_length;
+ int status = urb->status;
+ u8 *buf = urb->transfer_buffer;
+ __u16 pkt_len;
+
+ if (!pegasus)
+ return;
+
+ net = pegasus->net;
+ if (!netif_device_present(net) || !netif_running(net))
+ return;
+
+ switch (status) {
+ case 0:
+ break;
+ case -ETIME:
+ netif_dbg(pegasus, rx_err, net, "reset MAC\n");
+ pegasus->flags &= ~PEGASUS_RX_BUSY;
+ break;
+ case -EPIPE: /* stall, or disconnect from TT */
+ /* FIXME schedule work to clear the halt */
+ netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
+ return;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
+ return;
+ default:
+ netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
+ goto goon;
+ }
+
+ if (!count || count < 4)
+ goto goon;
+
+ rx_status = buf[count - 2];
+ if (rx_status & 0x1e) {
+ netif_dbg(pegasus, rx_err, net,
+ "RX packet error %x\n", rx_status);
+ pegasus->stats.rx_errors++;
+ if (rx_status & 0x06) /* long or runt */
+ pegasus->stats.rx_length_errors++;
+ if (rx_status & 0x08)
+ pegasus->stats.rx_crc_errors++;
+ if (rx_status & 0x10) /* extra bits */
+ pegasus->stats.rx_frame_errors++;
+ goto goon;
+ }
+ if (pegasus->chip == 0x8513) {
+ pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
+ pkt_len &= 0x0fff;
+ pegasus->rx_skb->data += 2;
+ } else {
+ pkt_len = buf[count - 3] << 8;
+ pkt_len += buf[count - 4];
+ pkt_len &= 0xfff;
+ pkt_len -= 8;
+ }
+
+ /*
+ * If the packet is unreasonably long, quietly drop it rather than
+ * kernel panicing by calling skb_put.
+ */
+ if (pkt_len > PEGASUS_MTU)
+ goto goon;
+
+ /*
+ * at this point we are sure pegasus->rx_skb != NULL
+ * so we go ahead and pass up the packet.
+ */
+ skb_put(pegasus->rx_skb, pkt_len);
+ pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
+ netif_rx(pegasus->rx_skb);
+ pegasus->stats.rx_packets++;
+ pegasus->stats.rx_bytes += pkt_len;
+
+ if (pegasus->flags & PEGASUS_UNPLUG)
+ return;
+
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
+ GFP_ATOMIC);
+
+ if (pegasus->rx_skb == NULL)
+ goto tl_sched;
+goon:
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+ rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
+ if (rx_status == -ENODEV)
+ netif_device_detach(pegasus->net);
+ else if (rx_status) {
+ pegasus->flags |= PEGASUS_RX_URB_FAIL;
+ goto tl_sched;
+ } else {
+ pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
+ }
+
+ return;
+
+tl_sched:
+ tasklet_schedule(&pegasus->rx_tl);
+}
+
+static void rx_fixup(unsigned long data)
+{
+ pegasus_t *pegasus;
+ int status;
+
+ pegasus = (pegasus_t *) data;
+ if (pegasus->flags & PEGASUS_UNPLUG)
+ return;
+
+ if (pegasus->flags & PEGASUS_RX_URB_FAIL)
+ if (pegasus->rx_skb)
+ goto try_again;
+ if (pegasus->rx_skb == NULL)
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+ PEGASUS_MTU,
+ GFP_ATOMIC);
+ if (pegasus->rx_skb == NULL) {
+ netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
+ tasklet_schedule(&pegasus->rx_tl);
+ return;
+ }
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+try_again:
+ status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
+ if (status == -ENODEV)
+ netif_device_detach(pegasus->net);
+ else if (status) {
+ pegasus->flags |= PEGASUS_RX_URB_FAIL;
+ tasklet_schedule(&pegasus->rx_tl);
+ } else {
+ pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
+ }
+}
+
+static void write_bulk_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int status = urb->status;
+
+ if (!pegasus)
+ return;
+
+ net = pegasus->net;
+
+ if (!netif_device_present(net) || !netif_running(net))
+ return;
+
+ switch (status) {
+ case -EPIPE:
+ /* FIXME schedule_work() to clear the tx halt */
+ netif_stop_queue(net);
+ netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
+ return;
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
+ return;
+ default:
+ netif_info(pegasus, tx_err, net, "TX status %d\n", status);
+ /* FALL THROUGH */
+ case 0:
+ break;
+ }
+
+ net->trans_start = jiffies; /* prevent tx timeout */
+ netif_wake_queue(net);
+}
+
+static void intr_callback(struct urb *urb)
+{
+ pegasus_t *pegasus = urb->context;
+ struct net_device *net;
+ int res, status = urb->status;
+
+ if (!pegasus)
+ return;
+ net = pegasus->net;
+
+ switch (status) {
+ case 0:
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -ESHUTDOWN:
+ return;
+ default:
+ /* some Pegasus-I products report LOTS of data
+ * toggle errors... avoid log spamming
+ */
+ netif_dbg(pegasus, timer, net, "intr status %d\n", status);
+ }
+
+ if (urb->actual_length >= 6) {
+ u8 *d = urb->transfer_buffer;
+
+ /* byte 0 == tx_status1, reg 2B */
+ if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
+ |LATE_COL|JABBER_TIMEOUT)) {
+ pegasus->stats.tx_errors++;
+ if (d[0] & TX_UNDERRUN)
+ pegasus->stats.tx_fifo_errors++;
+ if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
+ pegasus->stats.tx_aborted_errors++;
+ if (d[0] & LATE_COL)
+ pegasus->stats.tx_window_errors++;
+ }
+
+ /* d[5].LINK_STATUS lies on some adapters.
+ * d[0].NO_CARRIER kicks in only with failed TX.
+ * ... so monitoring with MII may be safest.
+ */
+
+ /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
+ pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
+ }
+
+ res = usb_submit_urb(urb, GFP_ATOMIC);
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ if (res)
+ netif_err(pegasus, timer, net,
+ "can't resubmit interrupt urb, %d\n", res);
+}
+
+static void pegasus_tx_timeout(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ netif_warn(pegasus, timer, net, "tx timeout\n");
+ usb_unlink_urb(pegasus->tx_urb);
+ pegasus->stats.tx_errors++;
+}
+
+static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
+ struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
+ int res;
+ __u16 l16 = skb->len;
+
+ netif_stop_queue(net);
+
+ ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
+ skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
+ usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
+ usb_sndbulkpipe(pegasus->usb, 2),
+ pegasus->tx_buff, count,
+ write_bulk_callback, pegasus);
+ if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
+ netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
+ switch (res) {
+ case -EPIPE: /* stall, or disconnect from TT */
+ /* cleanup should already have been scheduled */
+ break;
+ case -ENODEV: /* disconnect() upcoming */
+ case -EPERM:
+ netif_device_detach(pegasus->net);
+ break;
+ default:
+ pegasus->stats.tx_errors++;
+ netif_start_queue(net);
+ }
+ } else {
+ pegasus->stats.tx_packets++;
+ pegasus->stats.tx_bytes += skb->len;
+ }
+ dev_kfree_skb(skb);
+
+ return NETDEV_TX_OK;
+}
+
+static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev)
+{
+ return &((pegasus_t *) netdev_priv(dev))->stats;
+}
+
+static inline void disable_net_traffic(pegasus_t *pegasus)
+{
+ __le16 tmp = cpu_to_le16(0);
+
+ set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
+}
+
+static inline void get_interrupt_interval(pegasus_t *pegasus)
+{
+ u16 data;
+ u8 interval;
+
+ read_eprom_word(pegasus, 4, &data);
+ interval = data >> 8;
+ if (pegasus->usb->speed != USB_SPEED_HIGH) {
+ if (interval < 0x80) {
+ netif_info(pegasus, timer, pegasus->net,
+ "intr interval changed from %ums to %ums\n",
+ interval, 0x80);
+ interval = 0x80;
+ data = (data & 0x00FF) | ((u16)interval << 8);
+#ifdef PEGASUS_WRITE_EEPROM
+ write_eprom_word(pegasus, 4, data);
+#endif
+ }
+ }
+ pegasus->intr_interval = interval;
+}
+
+static void set_carrier(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ u16 tmp;
+
+ if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
+ return;
+
+ if (tmp & BMSR_LSTATUS)
+ netif_carrier_on(net);
+ else
+ netif_carrier_off(net);
+}
+
+static void free_all_urbs(pegasus_t *pegasus)
+{
+ usb_free_urb(pegasus->intr_urb);
+ usb_free_urb(pegasus->tx_urb);
+ usb_free_urb(pegasus->rx_urb);
+}
+
+static void unlink_all_urbs(pegasus_t *pegasus)
+{
+ usb_kill_urb(pegasus->intr_urb);
+ usb_kill_urb(pegasus->tx_urb);
+ usb_kill_urb(pegasus->rx_urb);
+}
+
+static int alloc_urbs(pegasus_t *pegasus)
+{
+ int res = -ENOMEM;
+
+ pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->rx_urb) {
+ return res;
+ }
+ pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->tx_urb) {
+ usb_free_urb(pegasus->rx_urb);
+ return res;
+ }
+ pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!pegasus->intr_urb) {
+ usb_free_urb(pegasus->tx_urb);
+ usb_free_urb(pegasus->rx_urb);
+ return res;
+ }
+
+ return 0;
+}
+
+static int pegasus_open(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+ int res=-ENOMEM;
+
+ if (pegasus->rx_skb == NULL)
+ pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
+ PEGASUS_MTU,
+ GFP_KERNEL);
+ if (!pegasus->rx_skb)
+ goto exit;
+
+ res = set_registers(pegasus, EthID, 6, net->dev_addr);
+
+ usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
+ usb_rcvbulkpipe(pegasus->usb, 1),
+ pegasus->rx_skb->data, PEGASUS_MTU + 8,
+ read_bulk_callback, pegasus);
+ if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
+ goto exit;
+ }
+
+ usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
+ usb_rcvintpipe(pegasus->usb, 3),
+ pegasus->intr_buff, sizeof(pegasus->intr_buff),
+ intr_callback, pegasus, pegasus->intr_interval);
+ if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
+ if (res == -ENODEV)
+ netif_device_detach(pegasus->net);
+ netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
+ usb_kill_urb(pegasus->rx_urb);
+ goto exit;
+ }
+ res = enable_net_traffic(net, pegasus->usb);
+ if (res < 0) {
+ netif_dbg(pegasus, ifup, net,
+ "can't enable_net_traffic() - %d\n", res);
+ res = -EIO;
+ usb_kill_urb(pegasus->rx_urb);
+ usb_kill_urb(pegasus->intr_urb);
+ goto exit;
+ }
+ set_carrier(net);
+ netif_start_queue(net);
+ netif_dbg(pegasus, ifup, net, "open\n");
+ res = 0;
+exit:
+ return res;
+}
+
+static int pegasus_close(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+
+ netif_stop_queue(net);
+ if (!(pegasus->flags & PEGASUS_UNPLUG))
+ disable_net_traffic(pegasus);
+ tasklet_kill(&pegasus->rx_tl);
+ unlink_all_urbs(pegasus);
+
+ return 0;
+}
+
+static void pegasus_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+
+ strlcpy(info->driver, driver_name, sizeof(info->driver));
+ strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
+}
+
+/* also handles three patterns of some kind in hardware */
+#define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
+
+static void
+pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+
+ wol->supported = WAKE_MAGIC | WAKE_PHY;
+ wol->wolopts = pegasus->wolopts;
+}
+
+static int
+pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ u8 reg78 = 0x04;
+ int ret;
+
+ if (wol->wolopts & ~WOL_SUPPORTED)
+ return -EINVAL;
+
+ if (wol->wolopts & WAKE_MAGIC)
+ reg78 |= 0x80;
+ if (wol->wolopts & WAKE_PHY)
+ reg78 |= 0x40;
+ /* FIXME this 0x10 bit still needs to get set in the chip... */
+ if (wol->wolopts)
+ pegasus->eth_regs[0] |= 0x10;
+ else
+ pegasus->eth_regs[0] &= ~0x10;
+ pegasus->wolopts = wol->wolopts;
+
+ ret = set_register(pegasus, WakeupControl, reg78);
+ if (!ret)
+ ret = device_set_wakeup_enable(&pegasus->usb->dev,
+ wol->wolopts);
+ return ret;
+}
+
+static inline void pegasus_reset_wol(struct net_device *dev)
+{
+ struct ethtool_wolinfo wol;
+
+ memset(&wol, 0, sizeof wol);
+ (void) pegasus_set_wol(dev, &wol);
+}
+
+static int
+pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ pegasus_t *pegasus;
+
+ pegasus = netdev_priv(dev);
+ mii_ethtool_gset(&pegasus->mii, ecmd);
+ return 0;
+}
+
+static int
+pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_ethtool_sset(&pegasus->mii, ecmd);
+}
+
+static int pegasus_nway_reset(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_nway_restart(&pegasus->mii);
+}
+
+static u32 pegasus_get_link(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return mii_link_ok(&pegasus->mii);
+}
+
+static u32 pegasus_get_msglevel(struct net_device *dev)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ return pegasus->msg_enable;
+}
+
+static void pegasus_set_msglevel(struct net_device *dev, u32 v)
+{
+ pegasus_t *pegasus = netdev_priv(dev);
+ pegasus->msg_enable = v;
+}
+
+static const struct ethtool_ops ops = {
+ .get_drvinfo = pegasus_get_drvinfo,
+ .get_settings = pegasus_get_settings,
+ .set_settings = pegasus_set_settings,
+ .nway_reset = pegasus_nway_reset,
+ .get_link = pegasus_get_link,
+ .get_msglevel = pegasus_get_msglevel,
+ .set_msglevel = pegasus_set_msglevel,
+ .get_wol = pegasus_get_wol,
+ .set_wol = pegasus_set_wol,
+};
+
+static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
+{
+ __u16 *data = (__u16 *) &rq->ifr_ifru;
+ pegasus_t *pegasus = netdev_priv(net);
+ int res;
+
+ switch (cmd) {
+ case SIOCDEVPRIVATE:
+ data[0] = pegasus->phy;
+ case SIOCDEVPRIVATE + 1:
+ read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
+ res = 0;
+ break;
+ case SIOCDEVPRIVATE + 2:
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+ write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
+ res = 0;
+ break;
+ default:
+ res = -EOPNOTSUPP;
+ }
+ return res;
+}
+
+static void pegasus_set_multicast(struct net_device *net)
+{
+ pegasus_t *pegasus = netdev_priv(net);
+
+ if (net->flags & IFF_PROMISC) {
+ pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
+ netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
+ } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
+ pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
+ pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
+ netif_dbg(pegasus, link, net, "set allmulti\n");
+ } else {
+ pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
+ pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
+ }
+ update_eth_regs_async(pegasus);
+}
+
+static __u8 mii_phy_probe(pegasus_t *pegasus)
+{
+ int i;
+ __u16 tmp;
+
+ for (i = 0; i < 32; i++) {
+ read_mii_word(pegasus, i, MII_BMSR, &tmp);
+ if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
+ continue;
+ else
+ return i;
+ }
+
+ return 0xff;
+}
+
+static inline void setup_pegasus_II(pegasus_t *pegasus)
+{
+ __u8 data = 0xa5;
+
+ set_register(pegasus, Reg1d, 0);
+ set_register(pegasus, Reg7b, 1);
+ mdelay(100);
+ if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
+ set_register(pegasus, Reg7b, 0);
+ else
+ set_register(pegasus, Reg7b, 2);
+
+ set_register(pegasus, 0x83, data);
+ get_registers(pegasus, 0x83, 1, &data);
+
+ if (data == 0xa5)
+ pegasus->chip = 0x8513;
+ else
+ pegasus->chip = 0;
+
+ set_register(pegasus, 0x80, 0xc0);
+ set_register(pegasus, 0x83, 0xff);
+ set_register(pegasus, 0x84, 0x01);
+
+ if (pegasus->features & HAS_HOME_PNA && mii_mode)
+ set_register(pegasus, Reg81, 6);
+ else
+ set_register(pegasus, Reg81, 2);
+}
+
+
+static int pegasus_count;
+static struct workqueue_struct *pegasus_workqueue;
+#define CARRIER_CHECK_DELAY (2 * HZ)
+
+static void check_carrier(struct work_struct *work)
+{
+ pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
+ set_carrier(pegasus->net);
+ if (!(pegasus->flags & PEGASUS_UNPLUG)) {
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ }
+}
+
+static int pegasus_blacklisted(struct usb_device *udev)
+{
+ struct usb_device_descriptor *udd = &udev->descriptor;
+
+ /* Special quirk to keep the driver from handling the Belkin Bluetooth
+ * dongle which happens to have the same ID.
+ */
+ if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
+ (udd->idProduct == cpu_to_le16(0x0121)) &&
+ (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
+ (udd->bDeviceProtocol == 1))
+ return 1;
+
+ return 0;
+}
+
+/* we rely on probe() and remove() being serialized so we
+ * don't need extra locking on pegasus_count.
+ */
+static void pegasus_dec_workqueue(void)
+{
+ pegasus_count--;
+ if (pegasus_count == 0) {
+ destroy_workqueue(pegasus_workqueue);
+ pegasus_workqueue = NULL;
+ }
+}
+
+static int pegasus_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct usb_device *dev = interface_to_usbdev(intf);
+ struct net_device *net;
+ pegasus_t *pegasus;
+ int dev_index = id - pegasus_ids;
+ int res = -ENOMEM;
+
+ if (pegasus_blacklisted(dev))
+ return -ENODEV;
+
+ if (pegasus_count == 0) {
+ pegasus_workqueue = create_singlethread_workqueue("pegasus");
+ if (!pegasus_workqueue)
+ return -ENOMEM;
+ }
+ pegasus_count++;
+
+ net = alloc_etherdev(sizeof(struct pegasus));
+ if (!net)
+ goto out;
+
+ pegasus = netdev_priv(net);
+ pegasus->dev_index = dev_index;
+
+ res = alloc_urbs(pegasus);
+ if (res < 0) {
+ dev_err(&intf->dev, "can't allocate %s\n", "urbs");
+ goto out1;
+ }
+
+ tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus);
+
+ INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
+
+ pegasus->intf = intf;
+ pegasus->usb = dev;
+ pegasus->net = net;
+
+
+ net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
+ net->netdev_ops = &pegasus_netdev_ops;
+ net->ethtool_ops = &ops;
+ pegasus->mii.dev = net;
+ pegasus->mii.mdio_read = mdio_read;
+ pegasus->mii.mdio_write = mdio_write;
+ pegasus->mii.phy_id_mask = 0x1f;
+ pegasus->mii.reg_num_mask = 0x1f;
+ pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
+ | NETIF_MSG_PROBE | NETIF_MSG_LINK);
+
+ pegasus->features = usb_dev_id[dev_index].private;
+ get_interrupt_interval(pegasus);
+ if (reset_mac(pegasus)) {
+ dev_err(&intf->dev, "can't reset MAC\n");
+ res = -EIO;
+ goto out2;
+ }
+ set_ethernet_addr(pegasus);
+ if (pegasus->features & PEGASUS_II) {
+ dev_info(&intf->dev, "setup Pegasus II specific registers\n");
+ setup_pegasus_II(pegasus);
+ }
+ pegasus->phy = mii_phy_probe(pegasus);
+ if (pegasus->phy == 0xff) {
+ dev_warn(&intf->dev, "can't locate MII phy, using default\n");
+ pegasus->phy = 1;
+ }
+ pegasus->mii.phy_id = pegasus->phy;
+ usb_set_intfdata(intf, pegasus);
+ SET_NETDEV_DEV(net, &intf->dev);
+ pegasus_reset_wol(net);
+ res = register_netdev(net);
+ if (res)
+ goto out3;
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
+ usb_dev_id[dev_index].name, net->dev_addr);
+ return 0;
+
+out3:
+ usb_set_intfdata(intf, NULL);
+out2:
+ free_all_urbs(pegasus);
+out1:
+ free_netdev(net);
+out:
+ pegasus_dec_workqueue();
+ return res;
+}
+
+static void pegasus_disconnect(struct usb_interface *intf)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ usb_set_intfdata(intf, NULL);
+ if (!pegasus) {
+ dev_dbg(&intf->dev, "unregistering non-bound device?\n");
+ return;
+ }
+
+ pegasus->flags |= PEGASUS_UNPLUG;
+ cancel_delayed_work(&pegasus->carrier_check);
+ unregister_netdev(pegasus->net);
+ unlink_all_urbs(pegasus);
+ free_all_urbs(pegasus);
+ if (pegasus->rx_skb != NULL) {
+ dev_kfree_skb(pegasus->rx_skb);
+ pegasus->rx_skb = NULL;
+ }
+ free_netdev(pegasus->net);
+ pegasus_dec_workqueue();
+}
+
+static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ netif_device_detach(pegasus->net);
+ cancel_delayed_work(&pegasus->carrier_check);
+ if (netif_running(pegasus->net)) {
+ usb_kill_urb(pegasus->rx_urb);
+ usb_kill_urb(pegasus->intr_urb);
+ }
+ return 0;
+}
+
+static int pegasus_resume(struct usb_interface *intf)
+{
+ struct pegasus *pegasus = usb_get_intfdata(intf);
+
+ netif_device_attach(pegasus->net);
+ if (netif_running(pegasus->net)) {
+ pegasus->rx_urb->status = 0;
+ pegasus->rx_urb->actual_length = 0;
+ read_bulk_callback(pegasus->rx_urb);
+
+ pegasus->intr_urb->status = 0;
+ pegasus->intr_urb->actual_length = 0;
+ intr_callback(pegasus->intr_urb);
+ }
+ queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check,
+ CARRIER_CHECK_DELAY);
+ return 0;
+}
+
+static const struct net_device_ops pegasus_netdev_ops = {
+ .ndo_open = pegasus_open,
+ .ndo_stop = pegasus_close,
+ .ndo_do_ioctl = pegasus_ioctl,
+ .ndo_start_xmit = pegasus_start_xmit,
+ .ndo_set_rx_mode = pegasus_set_multicast,
+ .ndo_get_stats = pegasus_netdev_stats,
+ .ndo_tx_timeout = pegasus_tx_timeout,
+ .ndo_change_mtu = eth_change_mtu,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_validate_addr = eth_validate_addr,
+};
+
+static struct usb_driver pegasus_driver = {
+ .name = driver_name,
+ .probe = pegasus_probe,
+ .disconnect = pegasus_disconnect,
+ .id_table = pegasus_ids,
+ .suspend = pegasus_suspend,
+ .resume = pegasus_resume,
+ .disable_hub_initiated_lpm = 1,
+};
+
+static void __init parse_id(char *id)
+{
+ unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
+ char *token, *name = NULL;
+
+ if ((token = strsep(&id, ":")) != NULL)
+ name = token;
+ /* name now points to a null terminated string*/
+ if ((token = strsep(&id, ":")) != NULL)
+ vendor_id = simple_strtoul(token, NULL, 16);
+ if ((token = strsep(&id, ":")) != NULL)
+ device_id = simple_strtoul(token, NULL, 16);
+ flags = simple_strtoul(id, NULL, 16);
+ pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
+ driver_name, name, vendor_id, device_id, flags);
+
+ if (vendor_id > 0x10000 || vendor_id == 0)
+ return;
+ if (device_id > 0x10000 || device_id == 0)
+ return;
+
+ for (i = 0; usb_dev_id[i].name; i++);
+ usb_dev_id[i].name = name;
+ usb_dev_id[i].vendor = vendor_id;
+ usb_dev_id[i].device = device_id;
+ usb_dev_id[i].private = flags;
+ pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
+ pegasus_ids[i].idVendor = vendor_id;
+ pegasus_ids[i].idProduct = device_id;
+}
+
+static int __init pegasus_init(void)
+{
+ pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION);
+ if (devid)
+ parse_id(devid);
+ return usb_register(&pegasus_driver);
+}
+
+static void __exit pegasus_exit(void)
+{
+ usb_deregister(&pegasus_driver);
+}
+
+module_init(pegasus_init);
+module_exit(pegasus_exit);
Code Review / kvmfornfv.git / blobdiff