2 * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net)
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * version 2 as published by the Free Software Foundation.
9 #include <linux/config.h>
10 #include <linux/sched.h>
11 #include <linux/init.h>
12 #include <linux/signal.h>
13 #include <linux/slab.h>
14 #include <linux/module.h>
15 #include <linux/netdevice.h>
16 #include <linux/etherdevice.h>
17 #include <linux/mii.h>
18 #include <linux/ethtool.h>
19 #include <linux/usb.h>
20 #include <asm/uaccess.h>
22 /* Version Information */
23 #define DRIVER_VERSION "v0.6.1 (2004/03/13)"
24 #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
25 #define DRIVER_DESC "rtl8150 based usb-ethernet driver"
46 #define CSCR 0x014C /* This one has the link status */
47 #define CSCR_LINK_STATUS (1 << 3)
49 #define IDR_EEPROM 0x1202
52 #define PHY_WRITE 0x20
55 #define MII_TIMEOUT 10
58 #define RTL8150_REQT_READ 0xc0
59 #define RTL8150_REQT_WRITE 0x40
60 #define RTL8150_REQ_GET_REGS 0x05
61 #define RTL8150_REQ_SET_REGS 0x05
64 /* Transmit status register errors */
65 #define TSR_ECOL (1<<5)
66 #define TSR_LCOL (1<<4)
67 #define TSR_LOSS_CRS (1<<3)
68 #define TSR_JBR (1<<2)
69 #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
70 /* Receive status register errors */
71 #define RSR_CRC (1<<2)
72 #define RSR_FAE (1<<1)
73 #define RSR_ERRORS (RSR_CRC | RSR_FAE)
75 /* Media status register definitions */
76 #define MSR_DUPLEX (1<<4)
77 #define MSR_SPEED (1<<3)
78 #define MSR_LINK (1<<2)
80 /* Interrupt pipe data */
84 #define INT_WAKSR 0x03
85 #define INT_TXOK_CNT 0x04
86 #define INT_RXLOST_CNT 0x05
87 #define INT_CRERR_CNT 0x06
88 #define INT_COL_CNT 0x07
90 /* Transmit status register errors */
91 #define TSR_ECOL (1<<5)
92 #define TSR_LCOL (1<<4)
93 #define TSR_LOSS_CRS (1<<3)
94 #define TSR_JBR (1<<2)
95 #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
96 /* Receive status register errors */
97 #define RSR_CRC (1<<2)
98 #define RSR_FAE (1<<1)
99 #define RSR_ERRORS (RSR_CRC | RSR_FAE)
101 /* Media status register definitions */
102 #define MSR_DUPLEX (1<<4)
103 #define MSR_SPEED (1<<3)
104 #define MSR_LINK (1<<2)
106 /* Interrupt pipe data */
110 #define INT_WAKSR 0x03
111 #define INT_TXOK_CNT 0x04
112 #define INT_RXLOST_CNT 0x05
113 #define INT_CRERR_CNT 0x06
114 #define INT_COL_CNT 0x07
117 #define RTL8150_MTU 1540
118 #define RTL8150_TX_TIMEOUT (HZ)
119 #define RX_SKB_POOL_SIZE 4
122 #define RTL8150_HW_CRC 0
124 #define RTL8150_UNPLUG 2
125 #define RX_URB_FAIL 3
127 /* Define these values to match your device */
128 #define VENDOR_ID_REALTEK 0x0bda
129 #define VENDOR_ID_MELCO 0x0411
130 #define VENDOR_ID_MICRONET 0x3980
131 #define VENDOR_ID_LONGSHINE 0x07b8
133 #define PRODUCT_ID_RTL8150 0x8150
134 #define PRODUCT_ID_LUAKTX 0x0012
135 #define PRODUCT_ID_LCS8138TX 0x401a
136 #define PRODUCT_ID_SP128AR 0x0003
140 /* table of devices that work with this driver */
141 static struct usb_device_id rtl8150_table[] = {
142 {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)},
143 {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)},
144 {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)},
145 {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)},
149 MODULE_DEVICE_TABLE(usb, rtl8150_table);
153 struct usb_device *udev;
154 struct tasklet_struct tl;
155 struct net_device_stats stats;
156 struct net_device *netdev;
157 struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb;
158 struct sk_buff *tx_skb, *rx_skb;
159 struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE];
160 spinlock_t rx_pool_lock;
161 struct usb_ctrlrequest dr;
168 typedef struct rtl8150 rtl8150_t;
170 static unsigned long multicast_filter_limit = 32;
172 static void fill_skb_pool(rtl8150_t *);
173 static void free_skb_pool(rtl8150_t *);
174 static inline struct sk_buff *pull_skb(rtl8150_t *);
175 static void rtl8150_disconnect(struct usb_interface *intf);
176 static int rtl8150_probe(struct usb_interface *intf,
177 const struct usb_device_id *id);
179 static const char driver_name [] = "rtl8150";
181 static struct usb_driver rtl8150_driver = {
182 .owner = THIS_MODULE,
184 .probe = rtl8150_probe,
185 .disconnect = rtl8150_disconnect,
186 .id_table = rtl8150_table,
191 ** device related part of the code
194 static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
196 return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
197 RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
198 indx, 0, data, size, HZ / 2);
201 static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
203 return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
204 RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
205 indx, 0, data, size, HZ / 2);
208 static void ctrl_callback(struct urb *urb, struct pt_regs *regs)
212 switch (urb->status) {
220 warn("ctrl urb status %d", urb->status);
223 clear_bit(RX_REG_SET, &dev->flags);
226 static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size)
230 if (test_bit(RX_REG_SET, &dev->flags))
233 dev->dr.bRequestType = RTL8150_REQT_WRITE;
234 dev->dr.bRequest = RTL8150_REQ_SET_REGS;
235 dev->dr.wValue = cpu_to_le16(indx);
237 dev->dr.wLength = cpu_to_le16(size);
238 dev->ctrl_urb->transfer_buffer_length = size;
239 usb_fill_control_urb(dev->ctrl_urb, dev->udev,
240 usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr,
241 &dev->rx_creg, size, ctrl_callback, dev);
242 if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC)))
243 err("control request submission failed: %d", ret);
245 set_bit(RX_REG_SET, &dev->flags);
250 static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg)
256 data[1] = data[2] = 0;
257 tmp = indx | PHY_READ | PHY_GO;
260 set_registers(dev, PHYADD, sizeof(data), data);
261 set_registers(dev, PHYCNT, 1, &tmp);
263 get_registers(dev, PHYCNT, 1, data);
264 } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
266 if (i < MII_TIMEOUT) {
267 get_registers(dev, PHYDAT, 2, data);
268 *reg = le16_to_cpup(data);
274 static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg)
280 *(data + 1) = cpu_to_le16p(®);
281 tmp = indx | PHY_WRITE | PHY_GO;
284 set_registers(dev, PHYADD, sizeof(data), data);
285 set_registers(dev, PHYCNT, 1, &tmp);
287 get_registers(dev, PHYCNT, 1, data);
288 } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
296 static inline void set_ethernet_addr(rtl8150_t * dev)
300 get_registers(dev, IDR, sizeof(node_id), node_id);
301 memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id));
304 static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
306 struct sockaddr *addr = p;
310 if (netif_running(netdev))
316 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
317 dbg("%s: Setting MAC address to ", netdev->name);
318 for (i = 0; i < 5; i++)
319 dbg("%02X:", netdev->dev_addr[i]);
320 dbg("%02X\n", netdev->dev_addr[i]);
321 /* Set the IDR registers. */
322 set_registers(dev, IDR, sizeof(netdev->dev_addr), netdev->dev_addr);
326 /* Get the CR contents. */
327 get_registers(dev, CR, 1, &cr);
328 /* Set the WEPROM bit (eeprom write enable). */
330 set_registers(dev, CR, 1, &cr);
331 /* Write the MAC address into eeprom. Eeprom writes must be word-sized,
332 so we need to split them up. */
333 for (i = 0; i * 2 < netdev->addr_len; i++) {
334 set_registers(dev, IDR_EEPROM + (i * 2), 2,
335 netdev->dev_addr + (i * 2));
337 /* Clear the WEPROM bit (preventing accidental eeprom writes). */
339 set_registers(dev, CR, 1, &cr);
345 static int rtl8150_reset(rtl8150_t * dev)
350 set_registers(dev, CR, 1, &data);
352 get_registers(dev, CR, 1, &data);
353 } while ((data & 0x10) && --i);
355 return (i > 0) ? 1 : 0;
358 static int alloc_all_urbs(rtl8150_t * dev)
360 dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
363 dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
365 usb_free_urb(dev->rx_urb);
368 dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
369 if (!dev->intr_urb) {
370 usb_free_urb(dev->rx_urb);
371 usb_free_urb(dev->tx_urb);
374 dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
375 if (!dev->intr_urb) {
376 usb_free_urb(dev->rx_urb);
377 usb_free_urb(dev->tx_urb);
378 usb_free_urb(dev->intr_urb);
385 static void free_all_urbs(rtl8150_t * dev)
387 usb_free_urb(dev->rx_urb);
388 usb_free_urb(dev->tx_urb);
389 usb_free_urb(dev->intr_urb);
390 usb_free_urb(dev->ctrl_urb);
393 static void unlink_all_urbs(rtl8150_t * dev)
395 usb_unlink_urb(dev->rx_urb);
396 usb_unlink_urb(dev->tx_urb);
397 usb_unlink_urb(dev->intr_urb);
398 usb_unlink_urb(dev->ctrl_urb);
401 static void read_bulk_callback(struct urb *urb, struct pt_regs *regs)
404 unsigned pkt_len, res;
406 struct net_device *netdev;
412 if (test_bit(RTL8150_UNPLUG, &dev->flags))
414 netdev = dev->netdev;
415 if (!netif_device_present(netdev))
418 switch (urb->status) {
422 return; /* the urb is in unlink state */
424 warn("may be reset is needed?..");
427 warn("Rx status %d", urb->status);
433 /* protect against short packets (tell me why we got some?!?) */
434 if (urb->actual_length < 4)
437 res = urb->actual_length;
438 rx_stat = le16_to_cpu(*(short *)(urb->transfer_buffer + res - 4));
441 skb_put(dev->rx_skb, pkt_len);
442 dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev);
443 netif_rx(dev->rx_skb);
444 dev->stats.rx_packets++;
445 dev->stats.rx_bytes += pkt_len;
447 spin_lock(&dev->rx_pool_lock);
449 spin_unlock(&dev->rx_pool_lock);
455 usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
456 dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
457 if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) {
458 set_bit(RX_URB_FAIL, &dev->flags);
461 clear_bit(RX_URB_FAIL, &dev->flags);
466 tasklet_schedule(&dev->tl);
469 static void rx_fixup(unsigned long data)
474 dev = (rtl8150_t *)data;
476 spin_lock_irq(&dev->rx_pool_lock);
478 spin_unlock_irq(&dev->rx_pool_lock);
479 if (test_bit(RX_URB_FAIL, &dev->flags))
482 spin_lock_irq(&dev->rx_pool_lock);
484 spin_unlock_irq(&dev->rx_pool_lock);
488 usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
489 dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
491 if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) {
492 set_bit(RX_URB_FAIL, &dev->flags);
495 clear_bit(RX_URB_FAIL, &dev->flags);
500 tasklet_schedule(&dev->tl);
503 static void write_bulk_callback(struct urb *urb, struct pt_regs *regs)
510 dev_kfree_skb_irq(dev->tx_skb);
511 if (!netif_device_present(dev->netdev))
514 info("%s: Tx status %d", dev->netdev->name, urb->status);
515 dev->netdev->trans_start = jiffies;
516 netif_wake_queue(dev->netdev);
519 static void intr_callback(struct urb *urb, struct pt_regs *regs)
528 switch (urb->status) {
529 case 0: /* success */
531 case -ECONNRESET: /* unlink */
535 /* -EPIPE: should clear the halt */
537 info("%s: intr status %d", dev->netdev->name, urb->status);
541 d = urb->transfer_buffer;
542 if (d[0] & TSR_ERRORS) {
543 dev->stats.tx_errors++;
544 if (d[INT_TSR] & (TSR_ECOL | TSR_JBR))
545 dev->stats.tx_aborted_errors++;
546 if (d[INT_TSR] & TSR_LCOL)
547 dev->stats.tx_window_errors++;
548 if (d[INT_TSR] & TSR_LOSS_CRS)
549 dev->stats.tx_carrier_errors++;
551 /* Report link status changes to the network stack */
552 if ((d[INT_MSR] & MSR_LINK) == 0) {
553 if (netif_carrier_ok(dev->netdev)) {
554 netif_carrier_off(dev->netdev);
555 dbg("%s: LINK LOST\n", __func__);
558 if (!netif_carrier_ok(dev->netdev)) {
559 netif_carrier_on(dev->netdev);
560 dbg("%s: LINK CAME BACK\n", __func__);
565 status = usb_submit_urb (urb, SLAB_ATOMIC);
567 err ("can't resubmit intr, %s-%s/input0, status %d",
568 dev->udev->bus->bus_name,
569 dev->udev->devpath, status);
575 ** network related part of the code
579 static void fill_skb_pool(rtl8150_t *dev)
584 for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
585 if (dev->rx_skb_pool[i])
587 skb = dev_alloc_skb(RTL8150_MTU + 2);
591 skb->dev = dev->netdev;
593 dev->rx_skb_pool[i] = skb;
597 static void free_skb_pool(rtl8150_t *dev)
601 for (i = 0; i < RX_SKB_POOL_SIZE; i++)
602 if (dev->rx_skb_pool[i])
603 dev_kfree_skb(dev->rx_skb_pool[i]);
606 static inline struct sk_buff *pull_skb(rtl8150_t *dev)
611 for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
612 if (dev->rx_skb_pool[i]) {
613 skb = dev->rx_skb_pool[i];
614 dev->rx_skb_pool[i] = NULL;
621 static int enable_net_traffic(rtl8150_t * dev)
623 u8 cr, tcr, rcr, msr;
625 if (!rtl8150_reset(dev)) {
626 warn("%s - device reset failed", __FUNCTION__);
628 /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */
630 dev->rx_creg = cpu_to_le16(rcr);
634 set_bit(RTL8150_HW_CRC, &dev->flags);
635 set_registers(dev, RCR, 1, &rcr);
636 set_registers(dev, TCR, 1, &tcr);
637 set_registers(dev, CR, 1, &cr);
638 get_registers(dev, MSR, 1, &msr);
643 static void disable_net_traffic(rtl8150_t * dev)
647 get_registers(dev, CR, 1, &cr);
649 set_registers(dev, CR, 1, &cr);
652 static struct net_device_stats *rtl8150_netdev_stats(struct net_device *dev)
654 return &((rtl8150_t *) dev->priv)->stats;
657 static void rtl8150_tx_timeout(struct net_device *netdev)
664 warn("%s: Tx timeout.", netdev->name);
665 dev->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
666 usb_unlink_urb(dev->tx_urb);
667 dev->stats.tx_errors++;
670 static void rtl8150_set_multicast(struct net_device *netdev)
675 netif_stop_queue(netdev);
676 if (netdev->flags & IFF_PROMISC) {
677 dev->rx_creg |= cpu_to_le16(0x0001);
678 info("%s: promiscuous mode", netdev->name);
679 } else if ((netdev->mc_count > multicast_filter_limit) ||
680 (netdev->flags & IFF_ALLMULTI)) {
681 dev->rx_creg &= cpu_to_le16(0xfffe);
682 dev->rx_creg |= cpu_to_le16(0x0002);
683 info("%s: allmulti set", netdev->name);
685 /* ~RX_MULTICAST, ~RX_PROMISCUOUS */
686 dev->rx_creg &= cpu_to_le16(0x00fc);
688 async_set_registers(dev, RCR, 2);
689 netif_wake_queue(netdev);
692 static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev)
697 netif_stop_queue(netdev);
699 count = (skb->len < 60) ? 60 : skb->len;
700 count = (count & 0x3f) ? count : count + 1;
702 usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2),
703 skb->data, count, write_bulk_callback, dev);
704 if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) {
705 warn("failed tx_urb %d\n", res);
706 dev->stats.tx_errors++;
707 netif_start_queue(netdev);
709 dev->stats.tx_packets++;
710 dev->stats.tx_bytes += skb->len;
711 netdev->trans_start = jiffies;
718 static void set_carrier(struct net_device *netdev)
720 rtl8150_t *dev = netdev->priv;
723 get_registers(dev, CSCR, 2, &tmp);
724 if (tmp & CSCR_LINK_STATUS)
725 netif_carrier_on(netdev);
727 netif_carrier_off(netdev);
730 static int rtl8150_open(struct net_device *netdev)
739 if (dev->rx_skb == NULL)
740 dev->rx_skb = pull_skb(dev);
744 set_registers(dev, IDR, 6, netdev->dev_addr);
746 usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
747 dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
748 if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL)))
749 warn("%s: rx_urb submit failed: %d", __FUNCTION__, res);
750 usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3),
751 dev->intr_buff, INTBUFSIZE, intr_callback,
752 dev, dev->intr_interval);
753 if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL)))
754 warn("%s: intr_urb submit failed: %d", __FUNCTION__, res);
755 netif_start_queue(netdev);
756 enable_net_traffic(dev);
762 static int rtl8150_close(struct net_device *netdev)
771 netif_stop_queue(netdev);
772 if (!test_bit(RTL8150_UNPLUG, &dev->flags))
773 disable_net_traffic(dev);
774 unlink_all_urbs(dev);
779 static int rtl8150_ethtool_ioctl(struct net_device *netdev, void *uaddr)
785 if (get_user(cmd, (int *) uaddr))
789 case ETHTOOL_GDRVINFO:{
790 struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
792 strncpy(info.driver, driver_name, ETHTOOL_BUSINFO_LEN);
793 strncpy(info.version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
794 usb_make_path(dev->udev, info.bus_info, sizeof info.bus_info);
795 if (copy_to_user(uaddr, &info, sizeof(info)))
800 struct ethtool_cmd ecmd;
803 if (copy_from_user(&ecmd, uaddr, sizeof(ecmd)))
805 ecmd.supported = (SUPPORTED_10baseT_Half |
806 SUPPORTED_10baseT_Full |
807 SUPPORTED_100baseT_Half |
808 SUPPORTED_100baseT_Full |
810 SUPPORTED_TP | SUPPORTED_MII);
812 ecmd.transceiver = XCVR_INTERNAL;
813 ecmd.phy_address = dev->phy;
814 get_registers(dev, BMCR, 2, &bmcr);
815 get_registers(dev, ANLP, 2, &lpa);
816 if (bmcr & BMCR_ANENABLE) {
817 ecmd.autoneg = AUTONEG_ENABLE;
818 ecmd.speed = (lpa & (LPA_100HALF | LPA_100FULL)) ?
819 SPEED_100 : SPEED_10;
820 if (ecmd.speed == SPEED_100)
821 ecmd.duplex = (lpa & LPA_100FULL) ?
822 DUPLEX_FULL : DUPLEX_HALF;
824 ecmd.duplex = (lpa & LPA_10FULL) ?
825 DUPLEX_FULL : DUPLEX_HALF;
827 ecmd.autoneg = AUTONEG_DISABLE;
828 ecmd.speed = (bmcr & BMCR_SPEED100) ?
829 SPEED_100 : SPEED_10;
830 ecmd.duplex = (bmcr & BMCR_FULLDPLX) ?
831 DUPLEX_FULL : DUPLEX_HALF;
833 if (copy_to_user(uaddr, &ecmd, sizeof(ecmd)))
840 struct ethtool_value edata = { ETHTOOL_GLINK };
842 edata.data = netif_carrier_ok(netdev);
843 if (copy_to_user(uaddr, &edata, sizeof(edata)))
852 static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
859 data = (u16 *) & rq->ifr_data;
864 res = rtl8150_ethtool_ioctl(netdev, rq->ifr_data);
868 case SIOCDEVPRIVATE + 1:
869 read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]);
871 case SIOCDEVPRIVATE + 2:
872 if (!capable(CAP_NET_ADMIN))
874 write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]);
883 static int rtl8150_probe(struct usb_interface *intf,
884 const struct usb_device_id *id)
886 struct usb_device *udev = interface_to_usbdev(intf);
888 struct net_device *netdev;
890 dev = kmalloc(sizeof(rtl8150_t), GFP_KERNEL);
892 err("Out of memory");
895 memset(dev, 0, sizeof(rtl8150_t));
897 dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
898 if (!dev->intr_buff) {
902 netdev = alloc_etherdev(0);
904 kfree(dev->intr_buff);
906 err("Oh boy, out of memory again?!?");
910 tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev);
911 spin_lock_init(&dev->rx_pool_lock);
914 dev->netdev = netdev;
915 SET_MODULE_OWNER(netdev);
917 netdev->open = rtl8150_open;
918 netdev->stop = rtl8150_close;
919 netdev->do_ioctl = rtl8150_ioctl;
920 netdev->watchdog_timeo = RTL8150_TX_TIMEOUT;
921 netdev->tx_timeout = rtl8150_tx_timeout;
922 netdev->hard_start_xmit = rtl8150_start_xmit;
923 netdev->set_multicast_list = rtl8150_set_multicast;
924 netdev->set_mac_address = rtl8150_set_mac_address;
925 netdev->get_stats = rtl8150_netdev_stats;
926 netdev->mtu = RTL8150_MTU;
927 dev->intr_interval = 100; /* 100ms */
929 if (!alloc_all_urbs(dev)) {
930 err("out of memory");
933 if (!rtl8150_reset(dev)) {
934 err("couldn't reset the device");
938 set_ethernet_addr(dev);
939 info("%s: rtl8150 is detected", netdev->name);
941 usb_set_intfdata(intf, dev);
942 SET_NETDEV_DEV(netdev, &intf->dev);
943 if (register_netdev(netdev) != 0) {
944 err("couldn't register the device");
950 usb_set_intfdata(intf, NULL);
955 kfree(dev->intr_buff);
961 static void rtl8150_disconnect(struct usb_interface *intf)
963 rtl8150_t *dev = usb_get_intfdata(intf);
965 usb_set_intfdata(intf, NULL);
967 set_bit(RTL8150_UNPLUG, &dev->flags);
968 unregister_netdev(dev->netdev);
969 unlink_all_urbs(dev);
973 dev_kfree_skb(dev->rx_skb);
974 free_netdev(dev->netdev);
975 kfree(dev->intr_buff);
980 static int __init usb_rtl8150_init(void)
982 info(DRIVER_DESC " " DRIVER_VERSION);
983 return usb_register(&rtl8150_driver);
986 static void __exit usb_rtl8150_exit(void)
988 usb_deregister(&rtl8150_driver);
991 module_init(usb_rtl8150_init);
992 module_exit(usb_rtl8150_exit);
994 MODULE_AUTHOR(DRIVER_AUTHOR);
995 MODULE_DESCRIPTION(DRIVER_DESC);
996 MODULE_LICENSE("GPL");