1 // SPDX-License-Identifier: GPL-2.0-only
7 #include <linux/sched.h>
8 #include <linux/slab.h>
9 #include <linux/init.h>
10 #include <linux/delay.h>
11 #include <linux/netdevice.h>
12 #include <linux/etherdevice.h>
13 #include <linux/ethtool.h>
14 #include <linux/mii.h>
15 #include <linux/usb.h>
16 #include <linux/module.h>
17 #include <asm/byteorder.h>
18 #include <linux/uaccess.h>
25 #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver"
27 static const char driver_name[] = "pegasus";
29 #undef PEGASUS_WRITE_EEPROM
30 #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \
31 BMSR_100FULL | BMSR_ANEGCAPABLE)
32 #define CARRIER_CHECK_DELAY (2 * HZ)
38 static struct usb_eth_dev usb_dev_id[] = {
39 #define PEGASUS_DEV(pn, vid, pid, flags) \
40 {.name = pn, .vendor = vid, .device = pid, .private = flags},
41 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
42 PEGASUS_DEV(pn, vid, pid, flags)
45 #undef PEGASUS_DEV_CLASS
50 static struct usb_device_id pegasus_ids[] = {
51 #define PEGASUS_DEV(pn, vid, pid, flags) \
52 {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid},
54 * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product
55 * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to
56 * ignore adaptors belonging to the "Wireless" class 0xE0. For this one
57 * case anyway, seeing as the pegasus is for "Wired" adaptors.
59 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \
60 {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \
61 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass},
64 #undef PEGASUS_DEV_CLASS
69 MODULE_AUTHOR(DRIVER_AUTHOR);
70 MODULE_DESCRIPTION(DRIVER_DESC);
71 MODULE_LICENSE("GPL");
72 module_param(loopback, bool, 0);
73 module_param(mii_mode, bool, 0);
74 module_param(devid, charp, 0);
75 MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)");
76 MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0");
77 MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'");
79 /* use ethtool to change the level for any given device */
80 static int msg_level = -1;
81 module_param(msg_level, int, 0);
82 MODULE_PARM_DESC(msg_level, "Override default message level");
84 MODULE_DEVICE_TABLE(usb, pegasus_ids);
85 static const struct net_device_ops pegasus_netdev_ops;
89 static void async_ctrl_callback(struct urb *urb)
91 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
92 int status = urb->status;
95 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status);
100 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data)
102 return usb_control_msg_recv(pegasus->usb, 0, PEGASUS_REQ_GET_REGS,
103 PEGASUS_REQT_READ, 0, indx, data, size,
107 static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size,
112 ret = usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REGS,
113 PEGASUS_REQT_WRITE, 0, indx, data, size,
116 netif_dbg(pegasus, drv, pegasus->net, "%s failed with %d\n", __func__, ret);
122 * There is only one way to write to a single ADM8511 register and this is via
123 * specific control request. 'data' is ignored by the device, but it is here to
126 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data)
131 ret = usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REG,
132 PEGASUS_REQT_WRITE, data, indx, buf, 1,
135 netif_dbg(pegasus, drv, pegasus->net, "%s failed with %d\n", __func__, ret);
140 static int update_eth_regs_async(pegasus_t *pegasus)
143 struct urb *async_urb;
144 struct usb_ctrlrequest *req;
146 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
150 async_urb = usb_alloc_urb(0, GFP_ATOMIC);
151 if (async_urb == NULL) {
155 req->bRequestType = PEGASUS_REQT_WRITE;
156 req->bRequest = PEGASUS_REQ_SET_REGS;
157 req->wValue = cpu_to_le16(0);
158 req->wIndex = cpu_to_le16(EthCtrl0);
159 req->wLength = cpu_to_le16(3);
161 usb_fill_control_urb(async_urb, pegasus->usb,
162 usb_sndctrlpipe(pegasus->usb, 0), (void *)req,
163 pegasus->eth_regs, 3, async_ctrl_callback, req);
165 ret = usb_submit_urb(async_urb, GFP_ATOMIC);
168 netif_device_detach(pegasus->net);
169 netif_err(pegasus, drv, pegasus->net,
170 "%s returned %d\n", __func__, ret);
175 static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd)
179 __u8 data[4] = { phy, 0, 0, indx };
181 if (cmd & PHY_WRITE) {
182 __le16 *t = (__le16 *) & data[1];
183 *t = cpu_to_le16(*regd);
185 set_register(p, PhyCtrl, 0);
186 set_registers(p, PhyAddr, sizeof(data), data);
187 set_register(p, PhyCtrl, (indx | cmd));
188 for (i = 0; i < REG_TIMEOUT; i++) {
189 ret = get_registers(p, PhyCtrl, 1, data);
192 if (data[0] & PHY_DONE)
195 if (i >= REG_TIMEOUT) {
199 if (cmd & PHY_READ) {
200 ret = get_registers(p, PhyData, 2, ®di);
203 *regd = le16_to_cpu(regdi);
207 netif_dbg(p, drv, p->net, "%s failed\n", __func__);
211 /* Returns non-negative int on success, error on failure */
212 static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
214 return __mii_op(pegasus, phy, indx, regd, PHY_READ);
217 /* Returns zero on success, error on failure */
218 static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd)
220 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE);
223 static int mdio_read(struct net_device *dev, int phy_id, int loc)
225 pegasus_t *pegasus = netdev_priv(dev);
229 ret = read_mii_word(pegasus, phy_id, loc, &res);
236 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val)
238 pegasus_t *pegasus = netdev_priv(dev);
241 write_mii_word(pegasus, phy_id, loc, &data);
244 static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata)
250 set_register(pegasus, EpromCtrl, 0);
251 set_register(pegasus, EpromOffset, index);
252 set_register(pegasus, EpromCtrl, EPROM_READ);
254 for (i = 0; i < REG_TIMEOUT; i++) {
255 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
258 if (tmp & EPROM_DONE)
261 if (i >= REG_TIMEOUT) {
266 ret = get_registers(pegasus, EpromData, 2, &retdatai);
269 *retdata = le16_to_cpu(retdatai);
273 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
277 #ifdef PEGASUS_WRITE_EEPROM
278 static inline void enable_eprom_write(pegasus_t *pegasus)
282 get_registers(pegasus, EthCtrl2, 1, &tmp);
283 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE);
286 static inline void disable_eprom_write(pegasus_t *pegasus)
290 get_registers(pegasus, EthCtrl2, 1, &tmp);
291 set_register(pegasus, EpromCtrl, 0);
292 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE);
295 static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data)
298 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE };
300 __le16 le_data = cpu_to_le16(data);
302 set_registers(pegasus, EpromOffset, 4, d);
303 enable_eprom_write(pegasus);
304 set_register(pegasus, EpromOffset, index);
305 set_registers(pegasus, EpromData, 2, &le_data);
306 set_register(pegasus, EpromCtrl, EPROM_WRITE);
308 for (i = 0; i < REG_TIMEOUT; i++) {
309 ret = get_registers(pegasus, EpromCtrl, 1, &tmp);
310 if (ret == -ESHUTDOWN)
312 if (tmp & EPROM_DONE)
315 disable_eprom_write(pegasus);
316 if (i >= REG_TIMEOUT)
322 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
325 #endif /* PEGASUS_WRITE_EEPROM */
327 static inline int get_node_id(pegasus_t *pegasus, u8 *id)
332 for (i = 0; i < 3; i++) {
333 ret = read_eprom_word(pegasus, i, &w16);
336 ((__le16 *) id)[i] = cpu_to_le16(w16);
342 static void set_ethernet_addr(pegasus_t *pegasus)
347 if (pegasus->features & PEGASUS_II) {
348 ret = get_registers(pegasus, 0x10, sizeof(node_id), node_id);
352 ret = get_node_id(pegasus, node_id);
355 ret = set_registers(pegasus, EthID, sizeof(node_id), node_id);
360 eth_hw_addr_set(pegasus->net, node_id);
364 eth_hw_addr_random(pegasus->net);
365 netif_dbg(pegasus, drv, pegasus->net, "software assigned MAC address.\n");
370 static inline int reset_mac(pegasus_t *pegasus)
375 set_register(pegasus, EthCtrl1, data);
376 for (i = 0; i < REG_TIMEOUT; i++) {
377 ret = get_registers(pegasus, EthCtrl1, 1, &data);
383 if (mii_mode && (pegasus->features & HAS_HOME_PNA))
384 set_register(pegasus, Gpio1, 0x34);
386 set_register(pegasus, Gpio1, 0x26);
387 set_register(pegasus, Gpio0, pegasus->features);
388 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET);
392 if (i == REG_TIMEOUT)
395 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
396 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
397 set_register(pegasus, Gpio0, 0x24);
398 set_register(pegasus, Gpio0, 0x26);
400 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) {
402 ret = read_mii_word(pegasus, 3, 0x1b, &auxmode);
406 write_mii_word(pegasus, 3, 0x1b, &auxmode);
411 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
415 static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
417 pegasus_t *pegasus = netdev_priv(dev);
422 ret = read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
425 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */
427 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
428 data[1] |= 0x20; /* set full duplex */
429 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF))
430 data[1] |= 0x10; /* set 100 Mbps */
433 data[2] = loopback ? 0x09 : 0x01;
435 memcpy(pegasus->eth_regs, data, sizeof(data));
436 ret = set_registers(pegasus, EthCtrl0, 3, data);
438 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS ||
439 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 ||
440 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) {
442 ret = read_mii_word(pegasus, 0, 0x1b, &auxmode);
446 write_mii_word(pegasus, 0, 0x1b, &auxmode);
451 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
455 static void read_bulk_callback(struct urb *urb)
457 pegasus_t *pegasus = urb->context;
458 struct net_device *net;
459 u8 *buf = urb->transfer_buffer;
460 int rx_status, count = urb->actual_length;
461 int status = urb->status;
468 if (!netif_device_present(net) || !netif_running(net))
475 netif_dbg(pegasus, rx_err, net, "reset MAC\n");
476 pegasus->flags &= ~PEGASUS_RX_BUSY;
478 case -EPIPE: /* stall, or disconnect from TT */
479 /* FIXME schedule work to clear the halt */
480 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n");
485 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status);
488 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status);
495 rx_status = buf[count - 2];
496 if (rx_status & 0x1e) {
497 netif_dbg(pegasus, rx_err, net,
498 "RX packet error %x\n", rx_status);
499 net->stats.rx_errors++;
500 if (rx_status & 0x06) /* long or runt */
501 net->stats.rx_length_errors++;
502 if (rx_status & 0x08)
503 net->stats.rx_crc_errors++;
504 if (rx_status & 0x10) /* extra bits */
505 net->stats.rx_frame_errors++;
508 if (pegasus->chip == 0x8513) {
509 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer);
511 pegasus->rx_skb->data += 2;
513 pkt_len = buf[count - 3] << 8;
514 pkt_len += buf[count - 4];
520 * If the packet is unreasonably long, quietly drop it rather than
521 * kernel panicing by calling skb_put.
523 if (pkt_len > PEGASUS_MTU)
527 * at this point we are sure pegasus->rx_skb != NULL
528 * so we go ahead and pass up the packet.
530 skb_put(pegasus->rx_skb, pkt_len);
531 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net);
532 netif_rx(pegasus->rx_skb);
533 net->stats.rx_packets++;
534 net->stats.rx_bytes += pkt_len;
536 if (pegasus->flags & PEGASUS_UNPLUG)
539 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU,
542 if (pegasus->rx_skb == NULL)
545 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
546 usb_rcvbulkpipe(pegasus->usb, 1),
547 pegasus->rx_skb->data, PEGASUS_MTU,
548 read_bulk_callback, pegasus);
549 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
550 if (rx_status == -ENODEV)
551 netif_device_detach(pegasus->net);
552 else if (rx_status) {
553 pegasus->flags |= PEGASUS_RX_URB_FAIL;
556 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
562 tasklet_schedule(&pegasus->rx_tl);
565 static void rx_fixup(struct tasklet_struct *t)
567 pegasus_t *pegasus = from_tasklet(pegasus, t, rx_tl);
570 if (pegasus->flags & PEGASUS_UNPLUG)
573 if (pegasus->flags & PEGASUS_RX_URB_FAIL)
576 if (pegasus->rx_skb == NULL)
577 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
580 if (pegasus->rx_skb == NULL) {
581 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n");
582 tasklet_schedule(&pegasus->rx_tl);
585 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
586 usb_rcvbulkpipe(pegasus->usb, 1),
587 pegasus->rx_skb->data, PEGASUS_MTU,
588 read_bulk_callback, pegasus);
590 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
591 if (status == -ENODEV)
592 netif_device_detach(pegasus->net);
594 pegasus->flags |= PEGASUS_RX_URB_FAIL;
595 tasklet_schedule(&pegasus->rx_tl);
597 pegasus->flags &= ~PEGASUS_RX_URB_FAIL;
601 static void write_bulk_callback(struct urb *urb)
603 pegasus_t *pegasus = urb->context;
604 struct net_device *net;
605 int status = urb->status;
612 if (!netif_device_present(net) || !netif_running(net))
617 /* FIXME schedule_work() to clear the tx halt */
618 netif_stop_queue(net);
619 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n");
624 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status);
627 netif_info(pegasus, tx_err, net, "TX status %d\n", status);
633 netif_trans_update(net); /* prevent tx timeout */
634 netif_wake_queue(net);
637 static void intr_callback(struct urb *urb)
639 pegasus_t *pegasus = urb->context;
640 struct net_device *net;
641 int res, status = urb->status;
650 case -ECONNRESET: /* unlink */
655 /* some Pegasus-I products report LOTS of data
656 * toggle errors... avoid log spamming
658 netif_dbg(pegasus, timer, net, "intr status %d\n", status);
661 if (urb->actual_length >= 6) {
662 u8 *d = urb->transfer_buffer;
664 /* byte 0 == tx_status1, reg 2B */
665 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL
666 |LATE_COL|JABBER_TIMEOUT)) {
667 net->stats.tx_errors++;
668 if (d[0] & TX_UNDERRUN)
669 net->stats.tx_fifo_errors++;
670 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT))
671 net->stats.tx_aborted_errors++;
673 net->stats.tx_window_errors++;
676 /* d[5].LINK_STATUS lies on some adapters.
677 * d[0].NO_CARRIER kicks in only with failed TX.
678 * ... so monitoring with MII may be safest.
681 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */
682 net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4];
685 res = usb_submit_urb(urb, GFP_ATOMIC);
687 netif_device_detach(pegasus->net);
689 netif_err(pegasus, timer, net,
690 "can't resubmit interrupt urb, %d\n", res);
693 static void pegasus_tx_timeout(struct net_device *net, unsigned int txqueue)
695 pegasus_t *pegasus = netdev_priv(net);
696 netif_warn(pegasus, timer, net, "tx timeout\n");
697 usb_unlink_urb(pegasus->tx_urb);
698 net->stats.tx_errors++;
701 static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb,
702 struct net_device *net)
704 pegasus_t *pegasus = netdev_priv(net);
705 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3;
707 __u16 l16 = skb->len;
709 netif_stop_queue(net);
711 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16);
712 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len);
713 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb,
714 usb_sndbulkpipe(pegasus->usb, 2),
715 pegasus->tx_buff, count,
716 write_bulk_callback, pegasus);
717 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) {
718 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res);
720 case -EPIPE: /* stall, or disconnect from TT */
721 /* cleanup should already have been scheduled */
723 case -ENODEV: /* disconnect() upcoming */
725 netif_device_detach(pegasus->net);
728 net->stats.tx_errors++;
729 netif_start_queue(net);
732 net->stats.tx_packets++;
733 net->stats.tx_bytes += skb->len;
740 static inline void disable_net_traffic(pegasus_t *pegasus)
742 __le16 tmp = cpu_to_le16(0);
744 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
747 static inline int get_interrupt_interval(pegasus_t *pegasus)
753 ret = read_eprom_word(pegasus, 4, &data);
757 interval = data >> 8;
758 if (pegasus->usb->speed != USB_SPEED_HIGH) {
759 if (interval < 0x80) {
760 netif_info(pegasus, timer, pegasus->net,
761 "intr interval changed from %ums to %ums\n",
764 data = (data & 0x00FF) | ((u16)interval << 8);
765 #ifdef PEGASUS_WRITE_EEPROM
766 write_eprom_word(pegasus, 4, data);
770 pegasus->intr_interval = interval;
775 static void set_carrier(struct net_device *net)
777 pegasus_t *pegasus = netdev_priv(net);
780 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp))
783 if (tmp & BMSR_LSTATUS)
784 netif_carrier_on(net);
786 netif_carrier_off(net);
789 static void free_all_urbs(pegasus_t *pegasus)
791 usb_free_urb(pegasus->intr_urb);
792 usb_free_urb(pegasus->tx_urb);
793 usb_free_urb(pegasus->rx_urb);
796 static void unlink_all_urbs(pegasus_t *pegasus)
798 usb_kill_urb(pegasus->intr_urb);
799 usb_kill_urb(pegasus->tx_urb);
800 usb_kill_urb(pegasus->rx_urb);
803 static int alloc_urbs(pegasus_t *pegasus)
807 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
808 if (!pegasus->rx_urb) {
811 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
812 if (!pegasus->tx_urb) {
813 usb_free_urb(pegasus->rx_urb);
816 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
817 if (!pegasus->intr_urb) {
818 usb_free_urb(pegasus->tx_urb);
819 usb_free_urb(pegasus->rx_urb);
826 static int pegasus_open(struct net_device *net)
828 pegasus_t *pegasus = netdev_priv(net);
831 if (pegasus->rx_skb == NULL)
832 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net,
835 if (!pegasus->rx_skb)
838 set_registers(pegasus, EthID, 6, net->dev_addr);
840 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
841 usb_rcvbulkpipe(pegasus->usb, 1),
842 pegasus->rx_skb->data, PEGASUS_MTU,
843 read_bulk_callback, pegasus);
844 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
846 netif_device_detach(pegasus->net);
847 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res);
851 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb,
852 usb_rcvintpipe(pegasus->usb, 3),
853 pegasus->intr_buff, sizeof(pegasus->intr_buff),
854 intr_callback, pegasus, pegasus->intr_interval);
855 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) {
857 netif_device_detach(pegasus->net);
858 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res);
859 usb_kill_urb(pegasus->rx_urb);
862 res = enable_net_traffic(net, pegasus->usb);
864 netif_dbg(pegasus, ifup, net,
865 "can't enable_net_traffic() - %d\n", res);
867 usb_kill_urb(pegasus->rx_urb);
868 usb_kill_urb(pegasus->intr_urb);
872 netif_start_queue(net);
873 netif_dbg(pegasus, ifup, net, "open\n");
879 static int pegasus_close(struct net_device *net)
881 pegasus_t *pegasus = netdev_priv(net);
883 netif_stop_queue(net);
884 if (!(pegasus->flags & PEGASUS_UNPLUG))
885 disable_net_traffic(pegasus);
886 tasklet_kill(&pegasus->rx_tl);
887 unlink_all_urbs(pegasus);
892 static void pegasus_get_drvinfo(struct net_device *dev,
893 struct ethtool_drvinfo *info)
895 pegasus_t *pegasus = netdev_priv(dev);
897 strlcpy(info->driver, driver_name, sizeof(info->driver));
898 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info));
901 /* also handles three patterns of some kind in hardware */
902 #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY)
905 pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
907 pegasus_t *pegasus = netdev_priv(dev);
909 wol->supported = WAKE_MAGIC | WAKE_PHY;
910 wol->wolopts = pegasus->wolopts;
914 pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
916 pegasus_t *pegasus = netdev_priv(dev);
920 if (wol->wolopts & ~WOL_SUPPORTED)
923 if (wol->wolopts & WAKE_MAGIC)
925 if (wol->wolopts & WAKE_PHY)
927 /* FIXME this 0x10 bit still needs to get set in the chip... */
929 pegasus->eth_regs[0] |= 0x10;
931 pegasus->eth_regs[0] &= ~0x10;
932 pegasus->wolopts = wol->wolopts;
934 ret = set_register(pegasus, WakeupControl, reg78);
936 ret = device_set_wakeup_enable(&pegasus->usb->dev,
941 static inline void pegasus_reset_wol(struct net_device *dev)
943 struct ethtool_wolinfo wol;
945 memset(&wol, 0, sizeof wol);
946 (void) pegasus_set_wol(dev, &wol);
950 pegasus_get_link_ksettings(struct net_device *dev,
951 struct ethtool_link_ksettings *ecmd)
955 pegasus = netdev_priv(dev);
956 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd);
961 pegasus_set_link_ksettings(struct net_device *dev,
962 const struct ethtool_link_ksettings *ecmd)
964 pegasus_t *pegasus = netdev_priv(dev);
965 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd);
968 static int pegasus_nway_reset(struct net_device *dev)
970 pegasus_t *pegasus = netdev_priv(dev);
971 return mii_nway_restart(&pegasus->mii);
974 static u32 pegasus_get_link(struct net_device *dev)
976 pegasus_t *pegasus = netdev_priv(dev);
977 return mii_link_ok(&pegasus->mii);
980 static u32 pegasus_get_msglevel(struct net_device *dev)
982 pegasus_t *pegasus = netdev_priv(dev);
983 return pegasus->msg_enable;
986 static void pegasus_set_msglevel(struct net_device *dev, u32 v)
988 pegasus_t *pegasus = netdev_priv(dev);
989 pegasus->msg_enable = v;
992 static const struct ethtool_ops ops = {
993 .get_drvinfo = pegasus_get_drvinfo,
994 .nway_reset = pegasus_nway_reset,
995 .get_link = pegasus_get_link,
996 .get_msglevel = pegasus_get_msglevel,
997 .set_msglevel = pegasus_set_msglevel,
998 .get_wol = pegasus_get_wol,
999 .set_wol = pegasus_set_wol,
1000 .get_link_ksettings = pegasus_get_link_ksettings,
1001 .set_link_ksettings = pegasus_set_link_ksettings,
1004 static int pegasus_siocdevprivate(struct net_device *net, struct ifreq *rq,
1005 void __user *udata, int cmd)
1007 __u16 *data = (__u16 *) &rq->ifr_ifru;
1008 pegasus_t *pegasus = netdev_priv(net);
1012 case SIOCDEVPRIVATE:
1013 data[0] = pegasus->phy;
1015 case SIOCDEVPRIVATE + 1:
1016 res = read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]);
1018 case SIOCDEVPRIVATE + 2:
1019 if (!capable(CAP_NET_ADMIN))
1021 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]);
1030 static void pegasus_set_multicast(struct net_device *net)
1032 pegasus_t *pegasus = netdev_priv(net);
1034 if (net->flags & IFF_PROMISC) {
1035 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS;
1036 netif_info(pegasus, link, net, "Promiscuous mode enabled\n");
1037 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) {
1038 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST;
1039 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1040 netif_dbg(pegasus, link, net, "set allmulti\n");
1042 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST;
1043 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS;
1045 update_eth_regs_async(pegasus);
1048 static __u8 mii_phy_probe(pegasus_t *pegasus)
1053 for (i = 0; i < 32; i++) {
1054 ret = read_mii_word(pegasus, i, MII_BMSR, &tmp);
1057 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0)
1066 static inline void setup_pegasus_II(pegasus_t *pegasus)
1071 set_register(pegasus, Reg1d, 0);
1072 set_register(pegasus, Reg7b, 1);
1074 if ((pegasus->features & HAS_HOME_PNA) && mii_mode)
1075 set_register(pegasus, Reg7b, 0);
1077 set_register(pegasus, Reg7b, 2);
1079 set_register(pegasus, 0x83, data);
1080 ret = get_registers(pegasus, 0x83, 1, &data);
1085 pegasus->chip = 0x8513;
1089 set_register(pegasus, 0x80, 0xc0);
1090 set_register(pegasus, 0x83, 0xff);
1091 set_register(pegasus, 0x84, 0x01);
1093 if (pegasus->features & HAS_HOME_PNA && mii_mode)
1094 set_register(pegasus, Reg81, 6);
1096 set_register(pegasus, Reg81, 2);
1100 netif_dbg(pegasus, drv, pegasus->net, "%s failed\n", __func__);
1103 static void check_carrier(struct work_struct *work)
1105 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work);
1106 set_carrier(pegasus->net);
1107 if (!(pegasus->flags & PEGASUS_UNPLUG)) {
1108 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1109 CARRIER_CHECK_DELAY);
1113 static int pegasus_blacklisted(struct usb_device *udev)
1115 struct usb_device_descriptor *udd = &udev->descriptor;
1117 /* Special quirk to keep the driver from handling the Belkin Bluetooth
1118 * dongle which happens to have the same ID.
1120 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) &&
1121 (udd->idProduct == cpu_to_le16(0x0121)) &&
1122 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) &&
1123 (udd->bDeviceProtocol == 1))
1129 static int pegasus_probe(struct usb_interface *intf,
1130 const struct usb_device_id *id)
1132 struct usb_device *dev = interface_to_usbdev(intf);
1133 struct net_device *net;
1135 int dev_index = id - pegasus_ids;
1138 if (pegasus_blacklisted(dev))
1141 net = alloc_etherdev(sizeof(struct pegasus));
1145 pegasus = netdev_priv(net);
1146 pegasus->dev_index = dev_index;
1148 res = alloc_urbs(pegasus);
1150 dev_err(&intf->dev, "can't allocate %s\n", "urbs");
1154 tasklet_setup(&pegasus->rx_tl, rx_fixup);
1156 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier);
1158 pegasus->intf = intf;
1163 net->watchdog_timeo = PEGASUS_TX_TIMEOUT;
1164 net->netdev_ops = &pegasus_netdev_ops;
1165 net->ethtool_ops = &ops;
1166 pegasus->mii.dev = net;
1167 pegasus->mii.mdio_read = mdio_read;
1168 pegasus->mii.mdio_write = mdio_write;
1169 pegasus->mii.phy_id_mask = 0x1f;
1170 pegasus->mii.reg_num_mask = 0x1f;
1171 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV
1172 | NETIF_MSG_PROBE | NETIF_MSG_LINK);
1174 pegasus->features = usb_dev_id[dev_index].private;
1175 res = get_interrupt_interval(pegasus);
1178 if (reset_mac(pegasus)) {
1179 dev_err(&intf->dev, "can't reset MAC\n");
1183 set_ethernet_addr(pegasus);
1184 if (pegasus->features & PEGASUS_II) {
1185 dev_info(&intf->dev, "setup Pegasus II specific registers\n");
1186 setup_pegasus_II(pegasus);
1188 pegasus->phy = mii_phy_probe(pegasus);
1189 if (pegasus->phy == 0xff) {
1190 dev_warn(&intf->dev, "can't locate MII phy, using default\n");
1193 pegasus->mii.phy_id = pegasus->phy;
1194 usb_set_intfdata(intf, pegasus);
1195 SET_NETDEV_DEV(net, &intf->dev);
1196 pegasus_reset_wol(net);
1197 res = register_netdev(net);
1200 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1201 CARRIER_CHECK_DELAY);
1202 dev_info(&intf->dev, "%s, %s, %pM\n", net->name,
1203 usb_dev_id[dev_index].name, net->dev_addr);
1207 usb_set_intfdata(intf, NULL);
1209 free_all_urbs(pegasus);
1216 static void pegasus_disconnect(struct usb_interface *intf)
1218 struct pegasus *pegasus = usb_get_intfdata(intf);
1220 usb_set_intfdata(intf, NULL);
1222 dev_dbg(&intf->dev, "unregistering non-bound device?\n");
1226 pegasus->flags |= PEGASUS_UNPLUG;
1227 cancel_delayed_work_sync(&pegasus->carrier_check);
1228 unregister_netdev(pegasus->net);
1229 unlink_all_urbs(pegasus);
1230 free_all_urbs(pegasus);
1231 if (pegasus->rx_skb != NULL) {
1232 dev_kfree_skb(pegasus->rx_skb);
1233 pegasus->rx_skb = NULL;
1235 free_netdev(pegasus->net);
1238 static int pegasus_suspend(struct usb_interface *intf, pm_message_t message)
1240 struct pegasus *pegasus = usb_get_intfdata(intf);
1242 netif_device_detach(pegasus->net);
1243 cancel_delayed_work_sync(&pegasus->carrier_check);
1244 if (netif_running(pegasus->net)) {
1245 usb_kill_urb(pegasus->rx_urb);
1246 usb_kill_urb(pegasus->intr_urb);
1251 static int pegasus_resume(struct usb_interface *intf)
1253 struct pegasus *pegasus = usb_get_intfdata(intf);
1255 netif_device_attach(pegasus->net);
1256 if (netif_running(pegasus->net)) {
1257 pegasus->rx_urb->status = 0;
1258 pegasus->rx_urb->actual_length = 0;
1259 read_bulk_callback(pegasus->rx_urb);
1261 pegasus->intr_urb->status = 0;
1262 pegasus->intr_urb->actual_length = 0;
1263 intr_callback(pegasus->intr_urb);
1265 queue_delayed_work(system_long_wq, &pegasus->carrier_check,
1266 CARRIER_CHECK_DELAY);
1270 static const struct net_device_ops pegasus_netdev_ops = {
1271 .ndo_open = pegasus_open,
1272 .ndo_stop = pegasus_close,
1273 .ndo_siocdevprivate = pegasus_siocdevprivate,
1274 .ndo_start_xmit = pegasus_start_xmit,
1275 .ndo_set_rx_mode = pegasus_set_multicast,
1276 .ndo_tx_timeout = pegasus_tx_timeout,
1277 .ndo_set_mac_address = eth_mac_addr,
1278 .ndo_validate_addr = eth_validate_addr,
1281 static struct usb_driver pegasus_driver = {
1282 .name = driver_name,
1283 .probe = pegasus_probe,
1284 .disconnect = pegasus_disconnect,
1285 .id_table = pegasus_ids,
1286 .suspend = pegasus_suspend,
1287 .resume = pegasus_resume,
1288 .disable_hub_initiated_lpm = 1,
1291 static void __init parse_id(char *id)
1293 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0;
1294 char *token, *name = NULL;
1296 if ((token = strsep(&id, ":")) != NULL)
1298 /* name now points to a null terminated string*/
1299 if ((token = strsep(&id, ":")) != NULL)
1300 vendor_id = simple_strtoul(token, NULL, 16);
1301 if ((token = strsep(&id, ":")) != NULL)
1302 device_id = simple_strtoul(token, NULL, 16);
1303 flags = simple_strtoul(id, NULL, 16);
1304 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n",
1305 driver_name, name, vendor_id, device_id, flags);
1307 if (vendor_id > 0x10000 || vendor_id == 0)
1309 if (device_id > 0x10000 || device_id == 0)
1312 for (i = 0; usb_dev_id[i].name; i++);
1313 usb_dev_id[i].name = name;
1314 usb_dev_id[i].vendor = vendor_id;
1315 usb_dev_id[i].device = device_id;
1316 usb_dev_id[i].private = flags;
1317 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE;
1318 pegasus_ids[i].idVendor = vendor_id;
1319 pegasus_ids[i].idProduct = device_id;
1322 static int __init pegasus_init(void)
1324 pr_info("%s: " DRIVER_DESC "\n", driver_name);
1327 return usb_register(&pegasus_driver);
1330 static void __exit pegasus_exit(void)
1332 usb_deregister(&pegasus_driver);
1335 module_init(pegasus_init);
1336 module_exit(pegasus_exit);