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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ASIX AX8817X based USB 2.0 Ethernet Devices
4 * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
5 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
6 * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
7 * Copyright (c) 2002-2003 TiVo Inc.
8 */
9
10#include "asix.h"
11
12#define PHY_MODE_MARVELL 0x0000
13#define MII_MARVELL_LED_CTRL 0x0018
14#define MII_MARVELL_STATUS 0x001b
15#define MII_MARVELL_CTRL 0x0014
16
17#define MARVELL_LED_MANUAL 0x0019
18
19#define MARVELL_STATUS_HWCFG 0x0004
20
21#define MARVELL_CTRL_TXDELAY 0x0002
22#define MARVELL_CTRL_RXDELAY 0x0080
23
24#define PHY_MODE_RTL8211CL 0x000C
25
26#define AX88772A_PHY14H 0x14
27#define AX88772A_PHY14H_DEFAULT 0x442C
28
29#define AX88772A_PHY15H 0x15
30#define AX88772A_PHY15H_DEFAULT 0x03C8
31
32#define AX88772A_PHY16H 0x16
33#define AX88772A_PHY16H_DEFAULT 0x4044
34
35struct ax88172_int_data {
36 __le16 res1;
37 u8 link;
38 __le16 res2;
39 u8 status;
40 __le16 res3;
41} __packed;
42
43static void asix_status(struct usbnet *dev, struct urb *urb)
44{
45 struct ax88172_int_data *event;
46 int link;
47
48 if (urb->actual_length < 8)
49 return;
50
51 event = urb->transfer_buffer;
52 link = event->link & 0x01;
53 if (netif_carrier_ok(dev->net) != link) {
54 usbnet_link_change(dev, link, 1);
55 netdev_dbg(dev->net, "Link Status is: %d\n", link);
56 }
57}
58
59static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr)
60{
61 if (is_valid_ether_addr(addr)) {
62 memcpy(dev->net->dev_addr, addr, ETH_ALEN);
63 } else {
64 netdev_info(dev->net, "invalid hw address, using random\n");
65 eth_hw_addr_random(dev->net);
66 }
67}
68
69/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
70static u32 asix_get_phyid(struct usbnet *dev)
71{
72 int phy_reg;
73 u32 phy_id;
74 int i;
75
76 /* Poll for the rare case the FW or phy isn't ready yet. */
77 for (i = 0; i < 100; i++) {
78 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
79 if (phy_reg < 0)
80 return 0;
81 if (phy_reg != 0 && phy_reg != 0xFFFF)
82 break;
83 mdelay(1);
84 }
85
86 if (phy_reg <= 0 || phy_reg == 0xFFFF)
87 return 0;
88
89 phy_id = (phy_reg & 0xffff) << 16;
90
91 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
92 if (phy_reg < 0)
93 return 0;
94
95 phy_id |= (phy_reg & 0xffff);
96
97 return phy_id;
98}
99
100static u32 asix_get_link(struct net_device *net)
101{
102 struct usbnet *dev = netdev_priv(net);
103
104 return mii_link_ok(&dev->mii);
105}
106
107static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
108{
109 struct usbnet *dev = netdev_priv(net);
110
111 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
112}
113
114/* We need to override some ethtool_ops so we require our
115 own structure so we don't interfere with other usbnet
116 devices that may be connected at the same time. */
117static const struct ethtool_ops ax88172_ethtool_ops = {
118 .get_drvinfo = asix_get_drvinfo,
119 .get_link = asix_get_link,
120 .get_msglevel = usbnet_get_msglevel,
121 .set_msglevel = usbnet_set_msglevel,
122 .get_wol = asix_get_wol,
123 .set_wol = asix_set_wol,
124 .get_eeprom_len = asix_get_eeprom_len,
125 .get_eeprom = asix_get_eeprom,
126 .set_eeprom = asix_set_eeprom,
127 .nway_reset = usbnet_nway_reset,
128 .get_link_ksettings = usbnet_get_link_ksettings,
129 .set_link_ksettings = usbnet_set_link_ksettings,
130};
131
132static void ax88172_set_multicast(struct net_device *net)
133{
134 struct usbnet *dev = netdev_priv(net);
135 struct asix_data *data = (struct asix_data *)&dev->data;
136 u8 rx_ctl = 0x8c;
137
138 if (net->flags & IFF_PROMISC) {
139 rx_ctl |= 0x01;
140 } else if (net->flags & IFF_ALLMULTI ||
141 netdev_mc_count(net) > AX_MAX_MCAST) {
142 rx_ctl |= 0x02;
143 } else if (netdev_mc_empty(net)) {
144 /* just broadcast and directed */
145 } else {
146 /* We use the 20 byte dev->data
147 * for our 8 byte filter buffer
148 * to avoid allocating memory that
149 * is tricky to free later */
150 struct netdev_hw_addr *ha;
151 u32 crc_bits;
152
153 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
154
155 /* Build the multicast hash filter. */
156 netdev_for_each_mc_addr(ha, net) {
157 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
158 data->multi_filter[crc_bits >> 3] |=
159 1 << (crc_bits & 7);
160 }
161
162 asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
163 AX_MCAST_FILTER_SIZE, data->multi_filter);
164
165 rx_ctl |= 0x10;
166 }
167
168 asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
169}
170
171static int ax88172_link_reset(struct usbnet *dev)
172{
173 u8 mode;
174 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
175
176 mii_check_media(&dev->mii, 1, 1);
177 mii_ethtool_gset(&dev->mii, &ecmd);
178 mode = AX88172_MEDIUM_DEFAULT;
179
180 if (ecmd.duplex != DUPLEX_FULL)
181 mode |= ~AX88172_MEDIUM_FD;
182
183 netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
184 ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
185
186 asix_write_medium_mode(dev, mode, 0);
187
188 return 0;
189}
190
191static const struct net_device_ops ax88172_netdev_ops = {
192 .ndo_open = usbnet_open,
193 .ndo_stop = usbnet_stop,
194 .ndo_start_xmit = usbnet_start_xmit,
195 .ndo_tx_timeout = usbnet_tx_timeout,
196 .ndo_change_mtu = usbnet_change_mtu,
197 .ndo_get_stats64 = usbnet_get_stats64,
198 .ndo_set_mac_address = eth_mac_addr,
199 .ndo_validate_addr = eth_validate_addr,
200 .ndo_do_ioctl = asix_ioctl,
201 .ndo_set_rx_mode = ax88172_set_multicast,
202};
203
204static void asix_phy_reset(struct usbnet *dev, unsigned int reset_bits)
205{
206 unsigned int timeout = 5000;
207
208 asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, reset_bits);
209
210 /* give phy_id a chance to process reset */
211 udelay(500);
212
213 /* See IEEE 802.3 "22.2.4.1.1 Reset": 500ms max */
214 while (timeout--) {
215 if (asix_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR)
216 & BMCR_RESET)
217 udelay(100);
218 else
219 return;
220 }
221
222 netdev_err(dev->net, "BMCR_RESET timeout on phy_id %d\n",
223 dev->mii.phy_id);
224}
225
226static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
227{
228 int ret = 0;
229 u8 buf[ETH_ALEN] = {0};
230 int i;
231 unsigned long gpio_bits = dev->driver_info->data;
232
233 usbnet_get_endpoints(dev,intf);
234
235 /* Toggle the GPIOs in a manufacturer/model specific way */
236 for (i = 2; i >= 0; i--) {
237 ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
238 (gpio_bits >> (i * 8)) & 0xff, 0, 0, NULL, 0);
239 if (ret < 0)
240 goto out;
241 msleep(5);
242 }
243
244 ret = asix_write_rx_ctl(dev, 0x80, 0);
245 if (ret < 0)
246 goto out;
247
248 /* Get the MAC address */
249 ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID,
250 0, 0, ETH_ALEN, buf, 0);
251 if (ret < 0) {
252 netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n",
253 ret);
254 goto out;
255 }
256
257 asix_set_netdev_dev_addr(dev, buf);
258
259 /* Initialize MII structure */
260 dev->mii.dev = dev->net;
261 dev->mii.mdio_read = asix_mdio_read;
262 dev->mii.mdio_write = asix_mdio_write;
263 dev->mii.phy_id_mask = 0x3f;
264 dev->mii.reg_num_mask = 0x1f;
265 dev->mii.phy_id = asix_get_phy_addr(dev);
266
267 dev->net->netdev_ops = &ax88172_netdev_ops;
268 dev->net->ethtool_ops = &ax88172_ethtool_ops;
269 dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
270 dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
271
272 asix_phy_reset(dev, BMCR_RESET);
273 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
274 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
275 mii_nway_restart(&dev->mii);
276
277 return 0;
278
279out:
280 return ret;
281}
282
283static const struct ethtool_ops ax88772_ethtool_ops = {
284 .get_drvinfo = asix_get_drvinfo,
285 .get_link = asix_get_link,
286 .get_msglevel = usbnet_get_msglevel,
287 .set_msglevel = usbnet_set_msglevel,
288 .get_wol = asix_get_wol,
289 .set_wol = asix_set_wol,
290 .get_eeprom_len = asix_get_eeprom_len,
291 .get_eeprom = asix_get_eeprom,
292 .set_eeprom = asix_set_eeprom,
293 .nway_reset = usbnet_nway_reset,
294 .get_link_ksettings = usbnet_get_link_ksettings,
295 .set_link_ksettings = usbnet_set_link_ksettings,
296};
297
298static int ax88772_link_reset(struct usbnet *dev)
299{
300 u16 mode;
301 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
302
303 mii_check_media(&dev->mii, 1, 1);
304 mii_ethtool_gset(&dev->mii, &ecmd);
305 mode = AX88772_MEDIUM_DEFAULT;
306
307 if (ethtool_cmd_speed(&ecmd) != SPEED_100)
308 mode &= ~AX_MEDIUM_PS;
309
310 if (ecmd.duplex != DUPLEX_FULL)
311 mode &= ~AX_MEDIUM_FD;
312
313 netdev_dbg(dev->net, "ax88772_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
314 ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
315
316 asix_write_medium_mode(dev, mode, 0);
317
318 return 0;
319}
320
321static int ax88772_reset(struct usbnet *dev)
322{
323 struct asix_data *data = (struct asix_data *)&dev->data;
324 int ret;
325
326 /* Rewrite MAC address */
327 ether_addr_copy(data->mac_addr, dev->net->dev_addr);
328 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0,
329 ETH_ALEN, data->mac_addr, 0);
330 if (ret < 0)
331 goto out;
332
333 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
334 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0);
335 if (ret < 0)
336 goto out;
337
338 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, 0);
339 if (ret < 0)
340 goto out;
341
342 return 0;
343
344out:
345 return ret;
346}
347
348static int ax88772_hw_reset(struct usbnet *dev, int in_pm)
349{
350 struct asix_data *data = (struct asix_data *)&dev->data;
351 int ret, embd_phy;
352 u16 rx_ctl;
353
354 ret = asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_2 |
355 AX_GPIO_GPO2EN, 5, in_pm);
356 if (ret < 0)
357 goto out;
358
359 embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
360
361 ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy,
362 0, 0, NULL, in_pm);
363 if (ret < 0) {
364 netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
365 goto out;
366 }
367
368 if (embd_phy) {
369 ret = asix_sw_reset(dev, AX_SWRESET_IPPD, in_pm);
370 if (ret < 0)
371 goto out;
372
373 usleep_range(10000, 11000);
374
375 ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm);
376 if (ret < 0)
377 goto out;
378
379 msleep(60);
380
381 ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL,
382 in_pm);
383 if (ret < 0)
384 goto out;
385 } else {
386 ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL,
387 in_pm);
388 if (ret < 0)
389 goto out;
390 }
391
392 msleep(150);
393
394 if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
395 MII_PHYSID1))){
396 ret = -EIO;
397 goto out;
398 }
399
400 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
401 if (ret < 0)
402 goto out;
403
404 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm);
405 if (ret < 0)
406 goto out;
407
408 ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
409 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
410 AX88772_IPG2_DEFAULT, 0, NULL, in_pm);
411 if (ret < 0) {
412 netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
413 goto out;
414 }
415
416 /* Rewrite MAC address */
417 ether_addr_copy(data->mac_addr, dev->net->dev_addr);
418 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0,
419 ETH_ALEN, data->mac_addr, in_pm);
420 if (ret < 0)
421 goto out;
422
423 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
424 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
425 if (ret < 0)
426 goto out;
427
428 rx_ctl = asix_read_rx_ctl(dev, in_pm);
429 netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
430 rx_ctl);
431
432 rx_ctl = asix_read_medium_status(dev, in_pm);
433 netdev_dbg(dev->net,
434 "Medium Status is 0x%04x after all initializations\n",
435 rx_ctl);
436
437 return 0;
438
439out:
440 return ret;
441}
442
443static int ax88772a_hw_reset(struct usbnet *dev, int in_pm)
444{
445 struct asix_data *data = (struct asix_data *)&dev->data;
446 int ret, embd_phy;
447 u16 rx_ctl, phy14h, phy15h, phy16h;
448 u8 chipcode = 0;
449
450 ret = asix_write_gpio(dev, AX_GPIO_RSE, 5, in_pm);
451 if (ret < 0)
452 goto out;
453
454 embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0);
455
456 ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, embd_phy |
457 AX_PHYSEL_SSEN, 0, 0, NULL, in_pm);
458 if (ret < 0) {
459 netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
460 goto out;
461 }
462 usleep_range(10000, 11000);
463
464 ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_IPRL, in_pm);
465 if (ret < 0)
466 goto out;
467
468 usleep_range(10000, 11000);
469
470 ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm);
471 if (ret < 0)
472 goto out;
473
474 msleep(160);
475
476 ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm);
477 if (ret < 0)
478 goto out;
479
480 ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm);
481 if (ret < 0)
482 goto out;
483
484 msleep(200);
485
486 if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
487 MII_PHYSID1))) {
488 ret = -1;
489 goto out;
490 }
491
492 ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0,
493 0, 1, &chipcode, in_pm);
494 if (ret < 0)
495 goto out;
496
497 if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772B_CHIPCODE) {
498 ret = asix_write_cmd(dev, AX_QCTCTRL, 0x8000, 0x8001,
499 0, NULL, in_pm);
500 if (ret < 0) {
501 netdev_dbg(dev->net, "Write BQ setting failed: %d\n",
502 ret);
503 goto out;
504 }
505 } else if ((chipcode & AX_CHIPCODE_MASK) == AX_AX88772A_CHIPCODE) {
506 /* Check if the PHY registers have default settings */
507 phy14h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
508 AX88772A_PHY14H);
509 phy15h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
510 AX88772A_PHY15H);
511 phy16h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
512 AX88772A_PHY16H);
513
514 netdev_dbg(dev->net,
515 "772a_hw_reset: MR20=0x%x MR21=0x%x MR22=0x%x\n",
516 phy14h, phy15h, phy16h);
517
518 /* Restore PHY registers default setting if not */
519 if (phy14h != AX88772A_PHY14H_DEFAULT)
520 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
521 AX88772A_PHY14H,
522 AX88772A_PHY14H_DEFAULT);
523 if (phy15h != AX88772A_PHY15H_DEFAULT)
524 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
525 AX88772A_PHY15H,
526 AX88772A_PHY15H_DEFAULT);
527 if (phy16h != AX88772A_PHY16H_DEFAULT)
528 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
529 AX88772A_PHY16H,
530 AX88772A_PHY16H_DEFAULT);
531 }
532
533 ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
534 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
535 AX88772_IPG2_DEFAULT, 0, NULL, in_pm);
536 if (ret < 0) {
537 netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
538 goto out;
539 }
540
541 /* Rewrite MAC address */
542 memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
543 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
544 data->mac_addr, in_pm);
545 if (ret < 0)
546 goto out;
547
548 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
549 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
550 if (ret < 0)
551 goto out;
552
553 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm);
554 if (ret < 0)
555 return ret;
556
557 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
558 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
559 if (ret < 0)
560 goto out;
561
562 rx_ctl = asix_read_rx_ctl(dev, in_pm);
563 netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
564 rx_ctl);
565
566 rx_ctl = asix_read_medium_status(dev, in_pm);
567 netdev_dbg(dev->net,
568 "Medium Status is 0x%04x after all initializations\n",
569 rx_ctl);
570
571 return 0;
572
573out:
574 return ret;
575}
576
577static const struct net_device_ops ax88772_netdev_ops = {
578 .ndo_open = usbnet_open,
579 .ndo_stop = usbnet_stop,
580 .ndo_start_xmit = usbnet_start_xmit,
581 .ndo_tx_timeout = usbnet_tx_timeout,
582 .ndo_change_mtu = usbnet_change_mtu,
583 .ndo_get_stats64 = usbnet_get_stats64,
584 .ndo_set_mac_address = asix_set_mac_address,
585 .ndo_validate_addr = eth_validate_addr,
586 .ndo_do_ioctl = asix_ioctl,
587 .ndo_set_rx_mode = asix_set_multicast,
588};
589
590static void ax88772_suspend(struct usbnet *dev)
591{
592 struct asix_common_private *priv = dev->driver_priv;
593 u16 medium;
594
595 /* Stop MAC operation */
596 medium = asix_read_medium_status(dev, 1);
597 medium &= ~AX_MEDIUM_RE;
598 asix_write_medium_mode(dev, medium, 1);
599
600 netdev_dbg(dev->net, "ax88772_suspend: medium=0x%04x\n",
601 asix_read_medium_status(dev, 1));
602
603 /* Preserve BMCR for restoring */
604 priv->presvd_phy_bmcr =
605 asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_BMCR);
606
607 /* Preserve ANAR for restoring */
608 priv->presvd_phy_advertise =
609 asix_mdio_read_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE);
610}
611
612static int asix_suspend(struct usb_interface *intf, pm_message_t message)
613{
614 struct usbnet *dev = usb_get_intfdata(intf);
615 struct asix_common_private *priv = dev->driver_priv;
616
617 if (priv && priv->suspend)
618 priv->suspend(dev);
619
620 return usbnet_suspend(intf, message);
621}
622
623static void ax88772_restore_phy(struct usbnet *dev)
624{
625 struct asix_common_private *priv = dev->driver_priv;
626
627 if (priv->presvd_phy_advertise) {
628 /* Restore Advertisement control reg */
629 asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_ADVERTISE,
630 priv->presvd_phy_advertise);
631
632 /* Restore BMCR */
633 if (priv->presvd_phy_bmcr & BMCR_ANENABLE)
634 priv->presvd_phy_bmcr |= BMCR_ANRESTART;
635
636 asix_mdio_write_nopm(dev->net, dev->mii.phy_id, MII_BMCR,
637 priv->presvd_phy_bmcr);
638
639 priv->presvd_phy_advertise = 0;
640 priv->presvd_phy_bmcr = 0;
641 }
642}
643
644static void ax88772_resume(struct usbnet *dev)
645{
646 int i;
647
648 for (i = 0; i < 3; i++)
649 if (!ax88772_hw_reset(dev, 1))
650 break;
651 ax88772_restore_phy(dev);
652}
653
654static void ax88772a_resume(struct usbnet *dev)
655{
656 int i;
657
658 for (i = 0; i < 3; i++) {
659 if (!ax88772a_hw_reset(dev, 1))
660 break;
661 }
662
663 ax88772_restore_phy(dev);
664}
665
666static int asix_resume(struct usb_interface *intf)
667{
668 struct usbnet *dev = usb_get_intfdata(intf);
669 struct asix_common_private *priv = dev->driver_priv;
670
671 if (priv && priv->resume)
672 priv->resume(dev);
673
674 return usbnet_resume(intf);
675}
676
677static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
678{
679 int ret, i;
680 u8 buf[ETH_ALEN] = {0}, chipcode = 0;
681 u32 phyid;
682 struct asix_common_private *priv;
683
684 usbnet_get_endpoints(dev, intf);
685
686 /* Maybe the boot loader passed the MAC address via device tree */
687 if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) {
688 netif_dbg(dev, ifup, dev->net,
689 "MAC address read from device tree");
690 } else {
691 /* Try getting the MAC address from EEPROM */
692 if (dev->driver_info->data & FLAG_EEPROM_MAC) {
693 for (i = 0; i < (ETH_ALEN >> 1); i++) {
694 ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM,
695 0x04 + i, 0, 2, buf + i * 2,
696 0);
697 if (ret < 0)
698 break;
699 }
700 } else {
701 ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
702 0, 0, ETH_ALEN, buf, 0);
703 }
704
705 if (ret < 0) {
706 netdev_dbg(dev->net, "Failed to read MAC address: %d\n",
707 ret);
708 return ret;
709 }
710 }
711
712 asix_set_netdev_dev_addr(dev, buf);
713
714 /* Initialize MII structure */
715 dev->mii.dev = dev->net;
716 dev->mii.mdio_read = asix_mdio_read;
717 dev->mii.mdio_write = asix_mdio_write;
718 dev->mii.phy_id_mask = 0x1f;
719 dev->mii.reg_num_mask = 0x1f;
720 dev->mii.phy_id = asix_get_phy_addr(dev);
721
722 dev->net->netdev_ops = &ax88772_netdev_ops;
723 dev->net->ethtool_ops = &ax88772_ethtool_ops;
724 dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
725 dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
726
727 asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1, &chipcode, 0);
728 chipcode &= AX_CHIPCODE_MASK;
729
730 ret = (chipcode == AX_AX88772_CHIPCODE) ? ax88772_hw_reset(dev, 0) :
731 ax88772a_hw_reset(dev, 0);
732
733 if (ret < 0) {
734 netdev_dbg(dev->net, "Failed to reset AX88772: %d\n", ret);
735 return ret;
736 }
737
738 /* Read PHYID register *AFTER* the PHY was reset properly */
739 phyid = asix_get_phyid(dev);
740 netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
741
742 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
743 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
744 /* hard_mtu is still the default - the device does not support
745 jumbo eth frames */
746 dev->rx_urb_size = 2048;
747 }
748
749 dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
750 if (!dev->driver_priv)
751 return -ENOMEM;
752
753 priv = dev->driver_priv;
754
755 priv->presvd_phy_bmcr = 0;
756 priv->presvd_phy_advertise = 0;
757 if (chipcode == AX_AX88772_CHIPCODE) {
758 priv->resume = ax88772_resume;
759 priv->suspend = ax88772_suspend;
760 } else {
761 priv->resume = ax88772a_resume;
762 priv->suspend = ax88772_suspend;
763 }
764
765 return 0;
766}
767
768static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
769{
770 asix_rx_fixup_common_free(dev->driver_priv);
771 kfree(dev->driver_priv);
772}
773
774static const struct ethtool_ops ax88178_ethtool_ops = {
775 .get_drvinfo = asix_get_drvinfo,
776 .get_link = asix_get_link,
777 .get_msglevel = usbnet_get_msglevel,
778 .set_msglevel = usbnet_set_msglevel,
779 .get_wol = asix_get_wol,
780 .set_wol = asix_set_wol,
781 .get_eeprom_len = asix_get_eeprom_len,
782 .get_eeprom = asix_get_eeprom,
783 .set_eeprom = asix_set_eeprom,
784 .nway_reset = usbnet_nway_reset,
785 .get_link_ksettings = usbnet_get_link_ksettings,
786 .set_link_ksettings = usbnet_set_link_ksettings,
787};
788
789static int marvell_phy_init(struct usbnet *dev)
790{
791 struct asix_data *data = (struct asix_data *)&dev->data;
792 u16 reg;
793
794 netdev_dbg(dev->net, "marvell_phy_init()\n");
795
796 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
797 netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
798
799 asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
800 MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
801
802 if (data->ledmode) {
803 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
804 MII_MARVELL_LED_CTRL);
805 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
806
807 reg &= 0xf8ff;
808 reg |= (1 + 0x0100);
809 asix_mdio_write(dev->net, dev->mii.phy_id,
810 MII_MARVELL_LED_CTRL, reg);
811
812 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
813 MII_MARVELL_LED_CTRL);
814 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
815 reg &= 0xfc0f;
816 }
817
818 return 0;
819}
820
821static int rtl8211cl_phy_init(struct usbnet *dev)
822{
823 struct asix_data *data = (struct asix_data *)&dev->data;
824
825 netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
826
827 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005);
828 asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0);
829 asix_mdio_write (dev->net, dev->mii.phy_id, 0x01,
830 asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080);
831 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
832
833 if (data->ledmode == 12) {
834 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002);
835 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb);
836 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
837 }
838
839 return 0;
840}
841
842static int marvell_led_status(struct usbnet *dev, u16 speed)
843{
844 u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
845
846 netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
847
848 /* Clear out the center LED bits - 0x03F0 */
849 reg &= 0xfc0f;
850
851 switch (speed) {
852 case SPEED_1000:
853 reg |= 0x03e0;
854 break;
855 case SPEED_100:
856 reg |= 0x03b0;
857 break;
858 default:
859 reg |= 0x02f0;
860 }
861
862 netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
863 asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
864
865 return 0;
866}
867
868static int ax88178_reset(struct usbnet *dev)
869{
870 struct asix_data *data = (struct asix_data *)&dev->data;
871 int ret;
872 __le16 eeprom;
873 u8 status;
874 int gpio0 = 0;
875 u32 phyid;
876
877 asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status, 0);
878 netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
879
880 asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL, 0);
881 asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom, 0);
882 asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL, 0);
883
884 netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
885
886 if (eeprom == cpu_to_le16(0xffff)) {
887 data->phymode = PHY_MODE_MARVELL;
888 data->ledmode = 0;
889 gpio0 = 1;
890 } else {
891 data->phymode = le16_to_cpu(eeprom) & 0x7F;
892 data->ledmode = le16_to_cpu(eeprom) >> 8;
893 gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
894 }
895 netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
896
897 /* Power up external GigaPHY through AX88178 GPIO pin */
898 asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 |
899 AX_GPIO_GPO1EN, 40, 0);
900 if ((le16_to_cpu(eeprom) >> 8) != 1) {
901 asix_write_gpio(dev, 0x003c, 30, 0);
902 asix_write_gpio(dev, 0x001c, 300, 0);
903 asix_write_gpio(dev, 0x003c, 30, 0);
904 } else {
905 netdev_dbg(dev->net, "gpio phymode == 1 path\n");
906 asix_write_gpio(dev, AX_GPIO_GPO1EN, 30, 0);
907 asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30, 0);
908 }
909
910 /* Read PHYID register *AFTER* powering up PHY */
911 phyid = asix_get_phyid(dev);
912 netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
913
914 /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
915 asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL, 0);
916
917 asix_sw_reset(dev, 0, 0);
918 msleep(150);
919
920 asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0);
921 msleep(150);
922
923 asix_write_rx_ctl(dev, 0, 0);
924
925 if (data->phymode == PHY_MODE_MARVELL) {
926 marvell_phy_init(dev);
927 msleep(60);
928 } else if (data->phymode == PHY_MODE_RTL8211CL)
929 rtl8211cl_phy_init(dev);
930
931 asix_phy_reset(dev, BMCR_RESET | BMCR_ANENABLE);
932 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
933 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
934 asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
935 ADVERTISE_1000FULL);
936
937 asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT, 0);
938 mii_nway_restart(&dev->mii);
939
940 /* Rewrite MAC address */
941 memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
942 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
943 data->mac_addr, 0);
944 if (ret < 0)
945 return ret;
946
947 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0);
948 if (ret < 0)
949 return ret;
950
951 return 0;
952}
953
954static int ax88178_link_reset(struct usbnet *dev)
955{
956 u16 mode;
957 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
958 struct asix_data *data = (struct asix_data *)&dev->data;
959 u32 speed;
960
961 netdev_dbg(dev->net, "ax88178_link_reset()\n");
962
963 mii_check_media(&dev->mii, 1, 1);
964 mii_ethtool_gset(&dev->mii, &ecmd);
965 mode = AX88178_MEDIUM_DEFAULT;
966 speed = ethtool_cmd_speed(&ecmd);
967
968 if (speed == SPEED_1000)
969 mode |= AX_MEDIUM_GM;
970 else if (speed == SPEED_100)
971 mode |= AX_MEDIUM_PS;
972 else
973 mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
974
975 mode |= AX_MEDIUM_ENCK;
976
977 if (ecmd.duplex == DUPLEX_FULL)
978 mode |= AX_MEDIUM_FD;
979 else
980 mode &= ~AX_MEDIUM_FD;
981
982 netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
983 speed, ecmd.duplex, mode);
984
985 asix_write_medium_mode(dev, mode, 0);
986
987 if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
988 marvell_led_status(dev, speed);
989
990 return 0;
991}
992
993static void ax88178_set_mfb(struct usbnet *dev)
994{
995 u16 mfb = AX_RX_CTL_MFB_16384;
996 u16 rxctl;
997 u16 medium;
998 int old_rx_urb_size = dev->rx_urb_size;
999
1000 if (dev->hard_mtu < 2048) {
1001 dev->rx_urb_size = 2048;
1002 mfb = AX_RX_CTL_MFB_2048;
1003 } else if (dev->hard_mtu < 4096) {
1004 dev->rx_urb_size = 4096;
1005 mfb = AX_RX_CTL_MFB_4096;
1006 } else if (dev->hard_mtu < 8192) {
1007 dev->rx_urb_size = 8192;
1008 mfb = AX_RX_CTL_MFB_8192;
1009 } else if (dev->hard_mtu < 16384) {
1010 dev->rx_urb_size = 16384;
1011 mfb = AX_RX_CTL_MFB_16384;
1012 }
1013
1014 rxctl = asix_read_rx_ctl(dev, 0);
1015 asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb, 0);
1016
1017 medium = asix_read_medium_status(dev, 0);
1018 if (dev->net->mtu > 1500)
1019 medium |= AX_MEDIUM_JFE;
1020 else
1021 medium &= ~AX_MEDIUM_JFE;
1022 asix_write_medium_mode(dev, medium, 0);
1023
1024 if (dev->rx_urb_size > old_rx_urb_size)
1025 usbnet_unlink_rx_urbs(dev);
1026}
1027
1028static int ax88178_change_mtu(struct net_device *net, int new_mtu)
1029{
1030 struct usbnet *dev = netdev_priv(net);
1031 int ll_mtu = new_mtu + net->hard_header_len + 4;
1032
1033 netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
1034
1035 if ((ll_mtu % dev->maxpacket) == 0)
1036 return -EDOM;
1037
1038 net->mtu = new_mtu;
1039 dev->hard_mtu = net->mtu + net->hard_header_len;
1040 ax88178_set_mfb(dev);
1041
1042 /* max qlen depend on hard_mtu and rx_urb_size */
1043 usbnet_update_max_qlen(dev);
1044
1045 return 0;
1046}
1047
1048static const struct net_device_ops ax88178_netdev_ops = {
1049 .ndo_open = usbnet_open,
1050 .ndo_stop = usbnet_stop,
1051 .ndo_start_xmit = usbnet_start_xmit,
1052 .ndo_tx_timeout = usbnet_tx_timeout,
1053 .ndo_get_stats64 = usbnet_get_stats64,
1054 .ndo_set_mac_address = asix_set_mac_address,
1055 .ndo_validate_addr = eth_validate_addr,
1056 .ndo_set_rx_mode = asix_set_multicast,
1057 .ndo_do_ioctl = asix_ioctl,
1058 .ndo_change_mtu = ax88178_change_mtu,
1059};
1060
1061static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
1062{
1063 int ret;
1064 u8 buf[ETH_ALEN] = {0};
1065
1066 usbnet_get_endpoints(dev,intf);
1067
1068 /* Get the MAC address */
1069 ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
1070 if (ret < 0) {
1071 netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
1072 return ret;
1073 }
1074
1075 asix_set_netdev_dev_addr(dev, buf);
1076
1077 /* Initialize MII structure */
1078 dev->mii.dev = dev->net;
1079 dev->mii.mdio_read = asix_mdio_read;
1080 dev->mii.mdio_write = asix_mdio_write;
1081 dev->mii.phy_id_mask = 0x1f;
1082 dev->mii.reg_num_mask = 0xff;
1083 dev->mii.supports_gmii = 1;
1084 dev->mii.phy_id = asix_get_phy_addr(dev);
1085
1086 dev->net->netdev_ops = &ax88178_netdev_ops;
1087 dev->net->ethtool_ops = &ax88178_ethtool_ops;
1088 dev->net->max_mtu = 16384 - (dev->net->hard_header_len + 4);
1089
1090 /* Blink LEDS so users know driver saw dongle */
1091 asix_sw_reset(dev, 0, 0);
1092 msleep(150);
1093
1094 asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0);
1095 msleep(150);
1096
1097 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
1098 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
1099 /* hard_mtu is still the default - the device does not support
1100 jumbo eth frames */
1101 dev->rx_urb_size = 2048;
1102 }
1103
1104 dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
1105 if (!dev->driver_priv)
1106 return -ENOMEM;
1107
1108 return 0;
1109}
1110
1111static const struct driver_info ax8817x_info = {
1112 .description = "ASIX AX8817x USB 2.0 Ethernet",
1113 .bind = ax88172_bind,
1114 .status = asix_status,
1115 .link_reset = ax88172_link_reset,
1116 .reset = ax88172_link_reset,
1117 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1118 .data = 0x00130103,
1119};
1120
1121static const struct driver_info dlink_dub_e100_info = {
1122 .description = "DLink DUB-E100 USB Ethernet",
1123 .bind = ax88172_bind,
1124 .status = asix_status,
1125 .link_reset = ax88172_link_reset,
1126 .reset = ax88172_link_reset,
1127 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1128 .data = 0x009f9d9f,
1129};
1130
1131static const struct driver_info netgear_fa120_info = {
1132 .description = "Netgear FA-120 USB Ethernet",
1133 .bind = ax88172_bind,
1134 .status = asix_status,
1135 .link_reset = ax88172_link_reset,
1136 .reset = ax88172_link_reset,
1137 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1138 .data = 0x00130103,
1139};
1140
1141static const struct driver_info hawking_uf200_info = {
1142 .description = "Hawking UF200 USB Ethernet",
1143 .bind = ax88172_bind,
1144 .status = asix_status,
1145 .link_reset = ax88172_link_reset,
1146 .reset = ax88172_link_reset,
1147 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1148 .data = 0x001f1d1f,
1149};
1150
1151static const struct driver_info ax88772_info = {
1152 .description = "ASIX AX88772 USB 2.0 Ethernet",
1153 .bind = ax88772_bind,
1154 .unbind = ax88772_unbind,
1155 .status = asix_status,
1156 .link_reset = ax88772_link_reset,
1157 .reset = ax88772_reset,
1158 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
1159 .rx_fixup = asix_rx_fixup_common,
1160 .tx_fixup = asix_tx_fixup,
1161};
1162
1163static const struct driver_info ax88772b_info = {
1164 .description = "ASIX AX88772B USB 2.0 Ethernet",
1165 .bind = ax88772_bind,
1166 .unbind = ax88772_unbind,
1167 .status = asix_status,
1168 .link_reset = ax88772_link_reset,
1169 .reset = ax88772_reset,
1170 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1171 FLAG_MULTI_PACKET,
1172 .rx_fixup = asix_rx_fixup_common,
1173 .tx_fixup = asix_tx_fixup,
1174 .data = FLAG_EEPROM_MAC,
1175};
1176
1177static const struct driver_info ax88178_info = {
1178 .description = "ASIX AX88178 USB 2.0 Ethernet",
1179 .bind = ax88178_bind,
1180 .unbind = ax88772_unbind,
1181 .status = asix_status,
1182 .link_reset = ax88178_link_reset,
1183 .reset = ax88178_reset,
1184 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1185 FLAG_MULTI_PACKET,
1186 .rx_fixup = asix_rx_fixup_common,
1187 .tx_fixup = asix_tx_fixup,
1188};
1189
1190/*
1191 * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
1192 * no-name packaging.
1193 * USB device strings are:
1194 * 1: Manufacturer: USBLINK
1195 * 2: Product: HG20F9 USB2.0
1196 * 3: Serial: 000003
1197 * Appears to be compatible with Asix 88772B.
1198 */
1199static const struct driver_info hg20f9_info = {
1200 .description = "HG20F9 USB 2.0 Ethernet",
1201 .bind = ax88772_bind,
1202 .unbind = ax88772_unbind,
1203 .status = asix_status,
1204 .link_reset = ax88772_link_reset,
1205 .reset = ax88772_reset,
1206 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1207 FLAG_MULTI_PACKET,
1208 .rx_fixup = asix_rx_fixup_common,
1209 .tx_fixup = asix_tx_fixup,
1210 .data = FLAG_EEPROM_MAC,
1211};
1212
1213static const struct usb_device_id products [] = {
1214{
1215 // Linksys USB200M
1216 USB_DEVICE (0x077b, 0x2226),
1217 .driver_info = (unsigned long) &ax8817x_info,
1218}, {
1219 // Netgear FA120
1220 USB_DEVICE (0x0846, 0x1040),
1221 .driver_info = (unsigned long) &netgear_fa120_info,
1222}, {
1223 // DLink DUB-E100
1224 USB_DEVICE (0x2001, 0x1a00),
1225 .driver_info = (unsigned long) &dlink_dub_e100_info,
1226}, {
1227 // Intellinet, ST Lab USB Ethernet
1228 USB_DEVICE (0x0b95, 0x1720),
1229 .driver_info = (unsigned long) &ax8817x_info,
1230}, {
1231 // Hawking UF200, TrendNet TU2-ET100
1232 USB_DEVICE (0x07b8, 0x420a),
1233 .driver_info = (unsigned long) &hawking_uf200_info,
1234}, {
1235 // Billionton Systems, USB2AR
1236 USB_DEVICE (0x08dd, 0x90ff),
1237 .driver_info = (unsigned long) &ax8817x_info,
1238}, {
1239 // Billionton Systems, GUSB2AM-1G-B
1240 USB_DEVICE(0x08dd, 0x0114),
1241 .driver_info = (unsigned long) &ax88178_info,
1242}, {
1243 // ATEN UC210T
1244 USB_DEVICE (0x0557, 0x2009),
1245 .driver_info = (unsigned long) &ax8817x_info,
1246}, {
1247 // Buffalo LUA-U2-KTX
1248 USB_DEVICE (0x0411, 0x003d),
1249 .driver_info = (unsigned long) &ax8817x_info,
1250}, {
1251 // Buffalo LUA-U2-GT 10/100/1000
1252 USB_DEVICE (0x0411, 0x006e),
1253 .driver_info = (unsigned long) &ax88178_info,
1254}, {
1255 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
1256 USB_DEVICE (0x6189, 0x182d),
1257 .driver_info = (unsigned long) &ax8817x_info,
1258}, {
1259 // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
1260 USB_DEVICE (0x0df6, 0x0056),
1261 .driver_info = (unsigned long) &ax88178_info,
1262}, {
1263 // Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
1264 USB_DEVICE (0x0df6, 0x061c),
1265 .driver_info = (unsigned long) &ax88178_info,
1266}, {
1267 // corega FEther USB2-TX
1268 USB_DEVICE (0x07aa, 0x0017),
1269 .driver_info = (unsigned long) &ax8817x_info,
1270}, {
1271 // Surecom EP-1427X-2
1272 USB_DEVICE (0x1189, 0x0893),
1273 .driver_info = (unsigned long) &ax8817x_info,
1274}, {
1275 // goodway corp usb gwusb2e
1276 USB_DEVICE (0x1631, 0x6200),
1277 .driver_info = (unsigned long) &ax8817x_info,
1278}, {
1279 // JVC MP-PRX1 Port Replicator
1280 USB_DEVICE (0x04f1, 0x3008),
1281 .driver_info = (unsigned long) &ax8817x_info,
1282}, {
1283 // Lenovo U2L100P 10/100
1284 USB_DEVICE (0x17ef, 0x7203),
1285 .driver_info = (unsigned long)&ax88772b_info,
1286}, {
1287 // ASIX AX88772B 10/100
1288 USB_DEVICE (0x0b95, 0x772b),
1289 .driver_info = (unsigned long) &ax88772b_info,
1290}, {
1291 // ASIX AX88772 10/100
1292 USB_DEVICE (0x0b95, 0x7720),
1293 .driver_info = (unsigned long) &ax88772_info,
1294}, {
1295 // ASIX AX88178 10/100/1000
1296 USB_DEVICE (0x0b95, 0x1780),
1297 .driver_info = (unsigned long) &ax88178_info,
1298}, {
1299 // Logitec LAN-GTJ/U2A
1300 USB_DEVICE (0x0789, 0x0160),
1301 .driver_info = (unsigned long) &ax88178_info,
1302}, {
1303 // Linksys USB200M Rev 2
1304 USB_DEVICE (0x13b1, 0x0018),
1305 .driver_info = (unsigned long) &ax88772_info,
1306}, {
1307 // 0Q0 cable ethernet
1308 USB_DEVICE (0x1557, 0x7720),
1309 .driver_info = (unsigned long) &ax88772_info,
1310}, {
1311 // DLink DUB-E100 H/W Ver B1
1312 USB_DEVICE (0x07d1, 0x3c05),
1313 .driver_info = (unsigned long) &ax88772_info,
1314}, {
1315 // DLink DUB-E100 H/W Ver B1 Alternate
1316 USB_DEVICE (0x2001, 0x3c05),
1317 .driver_info = (unsigned long) &ax88772_info,
1318}, {
1319 // DLink DUB-E100 H/W Ver C1
1320 USB_DEVICE (0x2001, 0x1a02),
1321 .driver_info = (unsigned long) &ax88772_info,
1322}, {
1323 // Linksys USB1000
1324 USB_DEVICE (0x1737, 0x0039),
1325 .driver_info = (unsigned long) &ax88178_info,
1326}, {
1327 // IO-DATA ETG-US2
1328 USB_DEVICE (0x04bb, 0x0930),
1329 .driver_info = (unsigned long) &ax88178_info,
1330}, {
1331 // Belkin F5D5055
1332 USB_DEVICE(0x050d, 0x5055),
1333 .driver_info = (unsigned long) &ax88178_info,
1334}, {
1335 // Apple USB Ethernet Adapter
1336 USB_DEVICE(0x05ac, 0x1402),
1337 .driver_info = (unsigned long) &ax88772_info,
1338}, {
1339 // Cables-to-Go USB Ethernet Adapter
1340 USB_DEVICE(0x0b95, 0x772a),
1341 .driver_info = (unsigned long) &ax88772_info,
1342}, {
1343 // ABOCOM for pci
1344 USB_DEVICE(0x14ea, 0xab11),
1345 .driver_info = (unsigned long) &ax88178_info,
1346}, {
1347 // ASIX 88772a
1348 USB_DEVICE(0x0db0, 0xa877),
1349 .driver_info = (unsigned long) &ax88772_info,
1350}, {
1351 // Asus USB Ethernet Adapter
1352 USB_DEVICE (0x0b95, 0x7e2b),
1353 .driver_info = (unsigned long)&ax88772b_info,
1354}, {
1355 /* ASIX 88172a demo board */
1356 USB_DEVICE(0x0b95, 0x172a),
1357 .driver_info = (unsigned long) &ax88172a_info,
1358}, {
1359 /*
1360 * USBLINK HG20F9 "USB 2.0 LAN"
1361 * Appears to have gazumped Linksys's manufacturer ID but
1362 * doesn't (yet) conflict with any known Linksys product.
1363 */
1364 USB_DEVICE(0x066b, 0x20f9),
1365 .driver_info = (unsigned long) &hg20f9_info,
1366},
1367 { }, // END
1368};
1369MODULE_DEVICE_TABLE(usb, products);
1370
1371static struct usb_driver asix_driver = {
1372 .name = DRIVER_NAME,
1373 .id_table = products,
1374 .probe = usbnet_probe,
1375 .suspend = asix_suspend,
1376 .resume = asix_resume,
1377 .reset_resume = asix_resume,
1378 .disconnect = usbnet_disconnect,
1379 .supports_autosuspend = 1,
1380 .disable_hub_initiated_lpm = 1,
1381};
1382
1383module_usb_driver(asix_driver);
1384
1385MODULE_AUTHOR("David Hollis");
1386MODULE_VERSION(DRIVER_VERSION);
1387MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1388MODULE_LICENSE("GPL");
1389
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ASIX AX8817X based USB 2.0 Ethernet Devices
4 * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
5 * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
6 * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
7 * Copyright (c) 2002-2003 TiVo Inc.
8 */
9
10#include "asix.h"
11
12#define PHY_MODE_MARVELL 0x0000
13#define MII_MARVELL_LED_CTRL 0x0018
14#define MII_MARVELL_STATUS 0x001b
15#define MII_MARVELL_CTRL 0x0014
16
17#define MARVELL_LED_MANUAL 0x0019
18
19#define MARVELL_STATUS_HWCFG 0x0004
20
21#define MARVELL_CTRL_TXDELAY 0x0002
22#define MARVELL_CTRL_RXDELAY 0x0080
23
24#define PHY_MODE_RTL8211CL 0x000C
25
26#define AX88772A_PHY14H 0x14
27#define AX88772A_PHY14H_DEFAULT 0x442C
28
29#define AX88772A_PHY15H 0x15
30#define AX88772A_PHY15H_DEFAULT 0x03C8
31
32#define AX88772A_PHY16H 0x16
33#define AX88772A_PHY16H_DEFAULT 0x4044
34
35struct ax88172_int_data {
36 __le16 res1;
37 u8 link;
38 __le16 res2;
39 u8 status;
40 __le16 res3;
41} __packed;
42
43static void asix_status(struct usbnet *dev, struct urb *urb)
44{
45 struct ax88172_int_data *event;
46 int link;
47
48 if (urb->actual_length < 8)
49 return;
50
51 event = urb->transfer_buffer;
52 link = event->link & 0x01;
53 if (netif_carrier_ok(dev->net) != link) {
54 usbnet_link_change(dev, link, 1);
55 netdev_dbg(dev->net, "Link Status is: %d\n", link);
56 }
57}
58
59static void asix_set_netdev_dev_addr(struct usbnet *dev, u8 *addr)
60{
61 if (is_valid_ether_addr(addr)) {
62 eth_hw_addr_set(dev->net, addr);
63 } else {
64 netdev_info(dev->net, "invalid hw address, using random\n");
65 eth_hw_addr_random(dev->net);
66 }
67}
68
69/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
70static u32 asix_get_phyid(struct usbnet *dev)
71{
72 int phy_reg;
73 u32 phy_id;
74 int i;
75
76 /* Poll for the rare case the FW or phy isn't ready yet. */
77 for (i = 0; i < 100; i++) {
78 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
79 if (phy_reg < 0)
80 return 0;
81 if (phy_reg != 0 && phy_reg != 0xFFFF)
82 break;
83 mdelay(1);
84 }
85
86 if (phy_reg <= 0 || phy_reg == 0xFFFF)
87 return 0;
88
89 phy_id = (phy_reg & 0xffff) << 16;
90
91 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
92 if (phy_reg < 0)
93 return 0;
94
95 phy_id |= (phy_reg & 0xffff);
96
97 return phy_id;
98}
99
100static u32 asix_get_link(struct net_device *net)
101{
102 struct usbnet *dev = netdev_priv(net);
103
104 return mii_link_ok(&dev->mii);
105}
106
107static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
108{
109 struct usbnet *dev = netdev_priv(net);
110
111 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
112}
113
114/* We need to override some ethtool_ops so we require our
115 own structure so we don't interfere with other usbnet
116 devices that may be connected at the same time. */
117static const struct ethtool_ops ax88172_ethtool_ops = {
118 .get_drvinfo = asix_get_drvinfo,
119 .get_link = asix_get_link,
120 .get_msglevel = usbnet_get_msglevel,
121 .set_msglevel = usbnet_set_msglevel,
122 .get_wol = asix_get_wol,
123 .set_wol = asix_set_wol,
124 .get_eeprom_len = asix_get_eeprom_len,
125 .get_eeprom = asix_get_eeprom,
126 .set_eeprom = asix_set_eeprom,
127 .nway_reset = usbnet_nway_reset,
128 .get_link_ksettings = usbnet_get_link_ksettings_mii,
129 .set_link_ksettings = usbnet_set_link_ksettings_mii,
130};
131
132static void ax88172_set_multicast(struct net_device *net)
133{
134 struct usbnet *dev = netdev_priv(net);
135 struct asix_data *data = (struct asix_data *)&dev->data;
136 u8 rx_ctl = 0x8c;
137
138 if (net->flags & IFF_PROMISC) {
139 rx_ctl |= 0x01;
140 } else if (net->flags & IFF_ALLMULTI ||
141 netdev_mc_count(net) > AX_MAX_MCAST) {
142 rx_ctl |= 0x02;
143 } else if (netdev_mc_empty(net)) {
144 /* just broadcast and directed */
145 } else {
146 /* We use the 20 byte dev->data
147 * for our 8 byte filter buffer
148 * to avoid allocating memory that
149 * is tricky to free later */
150 struct netdev_hw_addr *ha;
151 u32 crc_bits;
152
153 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
154
155 /* Build the multicast hash filter. */
156 netdev_for_each_mc_addr(ha, net) {
157 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
158 data->multi_filter[crc_bits >> 3] |=
159 1 << (crc_bits & 7);
160 }
161
162 asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
163 AX_MCAST_FILTER_SIZE, data->multi_filter);
164
165 rx_ctl |= 0x10;
166 }
167
168 asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
169}
170
171static int ax88172_link_reset(struct usbnet *dev)
172{
173 u8 mode;
174 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
175
176 mii_check_media(&dev->mii, 1, 1);
177 mii_ethtool_gset(&dev->mii, &ecmd);
178 mode = AX88172_MEDIUM_DEFAULT;
179
180 if (ecmd.duplex != DUPLEX_FULL)
181 mode |= ~AX88172_MEDIUM_FD;
182
183 netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
184 ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
185
186 asix_write_medium_mode(dev, mode, 0);
187
188 return 0;
189}
190
191static const struct net_device_ops ax88172_netdev_ops = {
192 .ndo_open = usbnet_open,
193 .ndo_stop = usbnet_stop,
194 .ndo_start_xmit = usbnet_start_xmit,
195 .ndo_tx_timeout = usbnet_tx_timeout,
196 .ndo_change_mtu = usbnet_change_mtu,
197 .ndo_get_stats64 = dev_get_tstats64,
198 .ndo_set_mac_address = eth_mac_addr,
199 .ndo_validate_addr = eth_validate_addr,
200 .ndo_eth_ioctl = asix_ioctl,
201 .ndo_set_rx_mode = ax88172_set_multicast,
202};
203
204static void asix_phy_reset(struct usbnet *dev, unsigned int reset_bits)
205{
206 unsigned int timeout = 5000;
207
208 asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, reset_bits);
209
210 /* give phy_id a chance to process reset */
211 udelay(500);
212
213 /* See IEEE 802.3 "22.2.4.1.1 Reset": 500ms max */
214 while (timeout--) {
215 if (asix_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR)
216 & BMCR_RESET)
217 udelay(100);
218 else
219 return;
220 }
221
222 netdev_err(dev->net, "BMCR_RESET timeout on phy_id %d\n",
223 dev->mii.phy_id);
224}
225
226static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
227{
228 int ret = 0;
229 u8 buf[ETH_ALEN] = {0};
230 int i;
231 unsigned long gpio_bits = dev->driver_info->data;
232
233 usbnet_get_endpoints(dev,intf);
234
235 /* Toggle the GPIOs in a manufacturer/model specific way */
236 for (i = 2; i >= 0; i--) {
237 ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
238 (gpio_bits >> (i * 8)) & 0xff, 0, 0, NULL, 0);
239 if (ret < 0)
240 goto out;
241 msleep(5);
242 }
243
244 ret = asix_write_rx_ctl(dev, 0x80, 0);
245 if (ret < 0)
246 goto out;
247
248 /* Get the MAC address */
249 ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID,
250 0, 0, ETH_ALEN, buf, 0);
251 if (ret < 0) {
252 netdev_dbg(dev->net, "read AX_CMD_READ_NODE_ID failed: %d\n",
253 ret);
254 goto out;
255 }
256
257 asix_set_netdev_dev_addr(dev, buf);
258
259 /* Initialize MII structure */
260 dev->mii.dev = dev->net;
261 dev->mii.mdio_read = asix_mdio_read;
262 dev->mii.mdio_write = asix_mdio_write;
263 dev->mii.phy_id_mask = 0x3f;
264 dev->mii.reg_num_mask = 0x1f;
265
266 dev->mii.phy_id = asix_read_phy_addr(dev, true);
267 if (dev->mii.phy_id < 0)
268 return dev->mii.phy_id;
269
270 dev->net->netdev_ops = &ax88172_netdev_ops;
271 dev->net->ethtool_ops = &ax88172_ethtool_ops;
272 dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
273 dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
274
275 asix_phy_reset(dev, BMCR_RESET);
276 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
277 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
278 mii_nway_restart(&dev->mii);
279
280 return 0;
281
282out:
283 return ret;
284}
285
286static void ax88772_ethtool_get_strings(struct net_device *netdev, u32 sset,
287 u8 *data)
288{
289 switch (sset) {
290 case ETH_SS_TEST:
291 net_selftest_get_strings(data);
292 break;
293 }
294}
295
296static int ax88772_ethtool_get_sset_count(struct net_device *ndev, int sset)
297{
298 switch (sset) {
299 case ETH_SS_TEST:
300 return net_selftest_get_count();
301 default:
302 return -EOPNOTSUPP;
303 }
304}
305
306static void ax88772_ethtool_get_pauseparam(struct net_device *ndev,
307 struct ethtool_pauseparam *pause)
308{
309 struct usbnet *dev = netdev_priv(ndev);
310 struct asix_common_private *priv = dev->driver_priv;
311
312 phylink_ethtool_get_pauseparam(priv->phylink, pause);
313}
314
315static int ax88772_ethtool_set_pauseparam(struct net_device *ndev,
316 struct ethtool_pauseparam *pause)
317{
318 struct usbnet *dev = netdev_priv(ndev);
319 struct asix_common_private *priv = dev->driver_priv;
320
321 return phylink_ethtool_set_pauseparam(priv->phylink, pause);
322}
323
324static const struct ethtool_ops ax88772_ethtool_ops = {
325 .get_drvinfo = asix_get_drvinfo,
326 .get_link = usbnet_get_link,
327 .get_msglevel = usbnet_get_msglevel,
328 .set_msglevel = usbnet_set_msglevel,
329 .get_wol = asix_get_wol,
330 .set_wol = asix_set_wol,
331 .get_eeprom_len = asix_get_eeprom_len,
332 .get_eeprom = asix_get_eeprom,
333 .set_eeprom = asix_set_eeprom,
334 .nway_reset = phy_ethtool_nway_reset,
335 .get_link_ksettings = phy_ethtool_get_link_ksettings,
336 .set_link_ksettings = phy_ethtool_set_link_ksettings,
337 .self_test = net_selftest,
338 .get_strings = ax88772_ethtool_get_strings,
339 .get_sset_count = ax88772_ethtool_get_sset_count,
340 .get_pauseparam = ax88772_ethtool_get_pauseparam,
341 .set_pauseparam = ax88772_ethtool_set_pauseparam,
342};
343
344static int ax88772_reset(struct usbnet *dev)
345{
346 struct asix_data *data = (struct asix_data *)&dev->data;
347 struct asix_common_private *priv = dev->driver_priv;
348 int ret;
349
350 /* Rewrite MAC address */
351 ether_addr_copy(data->mac_addr, dev->net->dev_addr);
352 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0,
353 ETH_ALEN, data->mac_addr, 0);
354 if (ret < 0)
355 goto out;
356
357 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
358 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0);
359 if (ret < 0)
360 goto out;
361
362 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, 0);
363 if (ret < 0)
364 goto out;
365
366 phylink_start(priv->phylink);
367
368 return 0;
369
370out:
371 return ret;
372}
373
374static int ax88772_hw_reset(struct usbnet *dev, int in_pm)
375{
376 struct asix_data *data = (struct asix_data *)&dev->data;
377 struct asix_common_private *priv = dev->driver_priv;
378 u16 rx_ctl;
379 int ret;
380
381 ret = asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_2 |
382 AX_GPIO_GPO2EN, 5, in_pm);
383 if (ret < 0)
384 goto out;
385
386 ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, priv->embd_phy,
387 0, 0, NULL, in_pm);
388 if (ret < 0) {
389 netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
390 goto out;
391 }
392
393 if (priv->embd_phy) {
394 ret = asix_sw_reset(dev, AX_SWRESET_IPPD, in_pm);
395 if (ret < 0)
396 goto out;
397
398 usleep_range(10000, 11000);
399
400 ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm);
401 if (ret < 0)
402 goto out;
403
404 msleep(60);
405
406 ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL,
407 in_pm);
408 if (ret < 0)
409 goto out;
410 } else {
411 ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL,
412 in_pm);
413 if (ret < 0)
414 goto out;
415 }
416
417 msleep(150);
418
419 if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
420 MII_PHYSID1))){
421 ret = -EIO;
422 goto out;
423 }
424
425 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
426 if (ret < 0)
427 goto out;
428
429 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm);
430 if (ret < 0)
431 goto out;
432
433 ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
434 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
435 AX88772_IPG2_DEFAULT, 0, NULL, in_pm);
436 if (ret < 0) {
437 netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
438 goto out;
439 }
440
441 /* Rewrite MAC address */
442 ether_addr_copy(data->mac_addr, dev->net->dev_addr);
443 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0,
444 ETH_ALEN, data->mac_addr, in_pm);
445 if (ret < 0)
446 goto out;
447
448 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
449 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
450 if (ret < 0)
451 goto out;
452
453 rx_ctl = asix_read_rx_ctl(dev, in_pm);
454 netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
455 rx_ctl);
456
457 rx_ctl = asix_read_medium_status(dev, in_pm);
458 netdev_dbg(dev->net,
459 "Medium Status is 0x%04x after all initializations\n",
460 rx_ctl);
461
462 return 0;
463
464out:
465 return ret;
466}
467
468static int ax88772a_hw_reset(struct usbnet *dev, int in_pm)
469{
470 struct asix_data *data = (struct asix_data *)&dev->data;
471 struct asix_common_private *priv = dev->driver_priv;
472 u16 rx_ctl, phy14h, phy15h, phy16h;
473 int ret;
474
475 ret = asix_write_gpio(dev, AX_GPIO_RSE, 5, in_pm);
476 if (ret < 0)
477 goto out;
478
479 ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, priv->embd_phy |
480 AX_PHYSEL_SSEN, 0, 0, NULL, in_pm);
481 if (ret < 0) {
482 netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret);
483 goto out;
484 }
485 usleep_range(10000, 11000);
486
487 ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_IPRL, in_pm);
488 if (ret < 0)
489 goto out;
490
491 usleep_range(10000, 11000);
492
493 ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm);
494 if (ret < 0)
495 goto out;
496
497 msleep(160);
498
499 ret = asix_sw_reset(dev, AX_SWRESET_CLEAR, in_pm);
500 if (ret < 0)
501 goto out;
502
503 ret = asix_sw_reset(dev, AX_SWRESET_IPRL, in_pm);
504 if (ret < 0)
505 goto out;
506
507 msleep(200);
508
509 if (in_pm && (!asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
510 MII_PHYSID1))) {
511 ret = -1;
512 goto out;
513 }
514
515 if (priv->chipcode == AX_AX88772B_CHIPCODE) {
516 ret = asix_write_cmd(dev, AX_QCTCTRL, 0x8000, 0x8001,
517 0, NULL, in_pm);
518 if (ret < 0) {
519 netdev_dbg(dev->net, "Write BQ setting failed: %d\n",
520 ret);
521 goto out;
522 }
523 } else if (priv->chipcode == AX_AX88772A_CHIPCODE) {
524 /* Check if the PHY registers have default settings */
525 phy14h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
526 AX88772A_PHY14H);
527 phy15h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
528 AX88772A_PHY15H);
529 phy16h = asix_mdio_read_nopm(dev->net, dev->mii.phy_id,
530 AX88772A_PHY16H);
531
532 netdev_dbg(dev->net,
533 "772a_hw_reset: MR20=0x%x MR21=0x%x MR22=0x%x\n",
534 phy14h, phy15h, phy16h);
535
536 /* Restore PHY registers default setting if not */
537 if (phy14h != AX88772A_PHY14H_DEFAULT)
538 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
539 AX88772A_PHY14H,
540 AX88772A_PHY14H_DEFAULT);
541 if (phy15h != AX88772A_PHY15H_DEFAULT)
542 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
543 AX88772A_PHY15H,
544 AX88772A_PHY15H_DEFAULT);
545 if (phy16h != AX88772A_PHY16H_DEFAULT)
546 asix_mdio_write_nopm(dev->net, dev->mii.phy_id,
547 AX88772A_PHY16H,
548 AX88772A_PHY16H_DEFAULT);
549 }
550
551 ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
552 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
553 AX88772_IPG2_DEFAULT, 0, NULL, in_pm);
554 if (ret < 0) {
555 netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret);
556 goto out;
557 }
558
559 /* Rewrite MAC address */
560 memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
561 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
562 data->mac_addr, in_pm);
563 if (ret < 0)
564 goto out;
565
566 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
567 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
568 if (ret < 0)
569 goto out;
570
571 ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT, in_pm);
572 if (ret < 0)
573 return ret;
574
575 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
576 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, in_pm);
577 if (ret < 0)
578 goto out;
579
580 rx_ctl = asix_read_rx_ctl(dev, in_pm);
581 netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n",
582 rx_ctl);
583
584 rx_ctl = asix_read_medium_status(dev, in_pm);
585 netdev_dbg(dev->net,
586 "Medium Status is 0x%04x after all initializations\n",
587 rx_ctl);
588
589 return 0;
590
591out:
592 return ret;
593}
594
595static const struct net_device_ops ax88772_netdev_ops = {
596 .ndo_open = usbnet_open,
597 .ndo_stop = usbnet_stop,
598 .ndo_start_xmit = usbnet_start_xmit,
599 .ndo_tx_timeout = usbnet_tx_timeout,
600 .ndo_change_mtu = usbnet_change_mtu,
601 .ndo_get_stats64 = dev_get_tstats64,
602 .ndo_set_mac_address = asix_set_mac_address,
603 .ndo_validate_addr = eth_validate_addr,
604 .ndo_eth_ioctl = phy_do_ioctl_running,
605 .ndo_set_rx_mode = asix_set_multicast,
606};
607
608static void ax88772_suspend(struct usbnet *dev)
609{
610 struct asix_common_private *priv = dev->driver_priv;
611 u16 medium;
612
613 if (netif_running(dev->net)) {
614 rtnl_lock();
615 phylink_suspend(priv->phylink, false);
616 rtnl_unlock();
617 }
618
619 /* Stop MAC operation */
620 medium = asix_read_medium_status(dev, 1);
621 medium &= ~AX_MEDIUM_RE;
622 asix_write_medium_mode(dev, medium, 1);
623
624 netdev_dbg(dev->net, "ax88772_suspend: medium=0x%04x\n",
625 asix_read_medium_status(dev, 1));
626}
627
628static int asix_suspend(struct usb_interface *intf, pm_message_t message)
629{
630 struct usbnet *dev = usb_get_intfdata(intf);
631 struct asix_common_private *priv = dev->driver_priv;
632
633 if (priv && priv->suspend)
634 priv->suspend(dev);
635
636 return usbnet_suspend(intf, message);
637}
638
639static void ax88772_resume(struct usbnet *dev)
640{
641 struct asix_common_private *priv = dev->driver_priv;
642 int i;
643
644 for (i = 0; i < 3; i++)
645 if (!priv->reset(dev, 1))
646 break;
647
648 if (netif_running(dev->net)) {
649 rtnl_lock();
650 phylink_resume(priv->phylink);
651 rtnl_unlock();
652 }
653}
654
655static int asix_resume(struct usb_interface *intf)
656{
657 struct usbnet *dev = usb_get_intfdata(intf);
658 struct asix_common_private *priv = dev->driver_priv;
659
660 if (priv && priv->resume)
661 priv->resume(dev);
662
663 return usbnet_resume(intf);
664}
665
666static int ax88772_init_mdio(struct usbnet *dev)
667{
668 struct asix_common_private *priv = dev->driver_priv;
669
670 priv->mdio = devm_mdiobus_alloc(&dev->udev->dev);
671 if (!priv->mdio)
672 return -ENOMEM;
673
674 priv->mdio->priv = dev;
675 priv->mdio->read = &asix_mdio_bus_read;
676 priv->mdio->write = &asix_mdio_bus_write;
677 priv->mdio->name = "Asix MDIO Bus";
678 /* mii bus name is usb-<usb bus number>-<usb device number> */
679 snprintf(priv->mdio->id, MII_BUS_ID_SIZE, "usb-%03d:%03d",
680 dev->udev->bus->busnum, dev->udev->devnum);
681
682 return devm_mdiobus_register(&dev->udev->dev, priv->mdio);
683}
684
685static int ax88772_init_phy(struct usbnet *dev)
686{
687 struct asix_common_private *priv = dev->driver_priv;
688 int ret;
689
690 priv->phydev = mdiobus_get_phy(priv->mdio, priv->phy_addr);
691 if (!priv->phydev) {
692 netdev_err(dev->net, "Could not find PHY\n");
693 return -ENODEV;
694 }
695
696 ret = phylink_connect_phy(priv->phylink, priv->phydev);
697 if (ret) {
698 netdev_err(dev->net, "Could not connect PHY\n");
699 return ret;
700 }
701
702 phy_suspend(priv->phydev);
703 priv->phydev->mac_managed_pm = true;
704
705 phy_attached_info(priv->phydev);
706
707 if (priv->embd_phy)
708 return 0;
709
710 /* In case main PHY is not the embedded PHY and MAC is RMII clock
711 * provider, we need to suspend embedded PHY by keeping PLL enabled
712 * (AX_SWRESET_IPPD == 0).
713 */
714 priv->phydev_int = mdiobus_get_phy(priv->mdio, AX_EMBD_PHY_ADDR);
715 if (!priv->phydev_int) {
716 rtnl_lock();
717 phylink_disconnect_phy(priv->phylink);
718 rtnl_unlock();
719 netdev_err(dev->net, "Could not find internal PHY\n");
720 return -ENODEV;
721 }
722
723 priv->phydev_int->mac_managed_pm = true;
724 phy_suspend(priv->phydev_int);
725
726 return 0;
727}
728
729static void ax88772_mac_config(struct phylink_config *config, unsigned int mode,
730 const struct phylink_link_state *state)
731{
732 /* Nothing to do */
733}
734
735static void ax88772_mac_link_down(struct phylink_config *config,
736 unsigned int mode, phy_interface_t interface)
737{
738 struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
739
740 asix_write_medium_mode(dev, 0, 0);
741 usbnet_link_change(dev, false, false);
742}
743
744static void ax88772_mac_link_up(struct phylink_config *config,
745 struct phy_device *phy,
746 unsigned int mode, phy_interface_t interface,
747 int speed, int duplex,
748 bool tx_pause, bool rx_pause)
749{
750 struct usbnet *dev = netdev_priv(to_net_dev(config->dev));
751 u16 m = AX_MEDIUM_AC | AX_MEDIUM_RE;
752
753 m |= duplex ? AX_MEDIUM_FD : 0;
754
755 switch (speed) {
756 case SPEED_100:
757 m |= AX_MEDIUM_PS;
758 break;
759 case SPEED_10:
760 break;
761 default:
762 return;
763 }
764
765 if (tx_pause)
766 m |= AX_MEDIUM_TFC;
767
768 if (rx_pause)
769 m |= AX_MEDIUM_RFC;
770
771 asix_write_medium_mode(dev, m, 0);
772 usbnet_link_change(dev, true, false);
773}
774
775static const struct phylink_mac_ops ax88772_phylink_mac_ops = {
776 .mac_config = ax88772_mac_config,
777 .mac_link_down = ax88772_mac_link_down,
778 .mac_link_up = ax88772_mac_link_up,
779};
780
781static int ax88772_phylink_setup(struct usbnet *dev)
782{
783 struct asix_common_private *priv = dev->driver_priv;
784 phy_interface_t phy_if_mode;
785 struct phylink *phylink;
786
787 priv->phylink_config.dev = &dev->net->dev;
788 priv->phylink_config.type = PHYLINK_NETDEV;
789 priv->phylink_config.mac_capabilities = MAC_SYM_PAUSE | MAC_ASYM_PAUSE |
790 MAC_10 | MAC_100;
791
792 __set_bit(PHY_INTERFACE_MODE_INTERNAL,
793 priv->phylink_config.supported_interfaces);
794 __set_bit(PHY_INTERFACE_MODE_RMII,
795 priv->phylink_config.supported_interfaces);
796
797 if (priv->embd_phy)
798 phy_if_mode = PHY_INTERFACE_MODE_INTERNAL;
799 else
800 phy_if_mode = PHY_INTERFACE_MODE_RMII;
801
802 phylink = phylink_create(&priv->phylink_config, dev->net->dev.fwnode,
803 phy_if_mode, &ax88772_phylink_mac_ops);
804 if (IS_ERR(phylink))
805 return PTR_ERR(phylink);
806
807 priv->phylink = phylink;
808 return 0;
809}
810
811static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
812{
813 struct asix_common_private *priv;
814 u8 buf[ETH_ALEN] = {0};
815 int ret, i;
816
817 priv = devm_kzalloc(&dev->udev->dev, sizeof(*priv), GFP_KERNEL);
818 if (!priv)
819 return -ENOMEM;
820
821 dev->driver_priv = priv;
822
823 usbnet_get_endpoints(dev, intf);
824
825 /* Maybe the boot loader passed the MAC address via device tree */
826 if (!eth_platform_get_mac_address(&dev->udev->dev, buf)) {
827 netif_dbg(dev, ifup, dev->net,
828 "MAC address read from device tree");
829 } else {
830 /* Try getting the MAC address from EEPROM */
831 if (dev->driver_info->data & FLAG_EEPROM_MAC) {
832 for (i = 0; i < (ETH_ALEN >> 1); i++) {
833 ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM,
834 0x04 + i, 0, 2, buf + i * 2,
835 0);
836 if (ret < 0)
837 break;
838 }
839 } else {
840 ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
841 0, 0, ETH_ALEN, buf, 0);
842 }
843
844 if (ret < 0) {
845 netdev_dbg(dev->net, "Failed to read MAC address: %d\n",
846 ret);
847 return ret;
848 }
849 }
850
851 asix_set_netdev_dev_addr(dev, buf);
852
853 dev->net->netdev_ops = &ax88772_netdev_ops;
854 dev->net->ethtool_ops = &ax88772_ethtool_ops;
855 dev->net->needed_headroom = 4; /* cf asix_tx_fixup() */
856 dev->net->needed_tailroom = 4; /* cf asix_tx_fixup() */
857
858 ret = asix_read_phy_addr(dev, true);
859 if (ret < 0)
860 return ret;
861
862 priv->phy_addr = ret;
863 priv->embd_phy = ((priv->phy_addr & 0x1f) == AX_EMBD_PHY_ADDR);
864
865 ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, 0, 0, 1,
866 &priv->chipcode, 0);
867 if (ret < 0) {
868 netdev_dbg(dev->net, "Failed to read STATMNGSTS_REG: %d\n", ret);
869 return ret;
870 }
871
872 priv->chipcode &= AX_CHIPCODE_MASK;
873
874 priv->resume = ax88772_resume;
875 priv->suspend = ax88772_suspend;
876 if (priv->chipcode == AX_AX88772_CHIPCODE)
877 priv->reset = ax88772_hw_reset;
878 else
879 priv->reset = ax88772a_hw_reset;
880
881 ret = priv->reset(dev, 0);
882 if (ret < 0) {
883 netdev_dbg(dev->net, "Failed to reset AX88772: %d\n", ret);
884 return ret;
885 }
886
887 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
888 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
889 /* hard_mtu is still the default - the device does not support
890 jumbo eth frames */
891 dev->rx_urb_size = 2048;
892 }
893
894 priv->presvd_phy_bmcr = 0;
895 priv->presvd_phy_advertise = 0;
896
897 ret = ax88772_init_mdio(dev);
898 if (ret)
899 return ret;
900
901 ret = ax88772_phylink_setup(dev);
902 if (ret)
903 return ret;
904
905 ret = ax88772_init_phy(dev);
906 if (ret)
907 phylink_destroy(priv->phylink);
908
909 return ret;
910}
911
912static int ax88772_stop(struct usbnet *dev)
913{
914 struct asix_common_private *priv = dev->driver_priv;
915
916 phylink_stop(priv->phylink);
917
918 return 0;
919}
920
921static void ax88772_unbind(struct usbnet *dev, struct usb_interface *intf)
922{
923 struct asix_common_private *priv = dev->driver_priv;
924
925 rtnl_lock();
926 phylink_disconnect_phy(priv->phylink);
927 rtnl_unlock();
928 phylink_destroy(priv->phylink);
929 asix_rx_fixup_common_free(dev->driver_priv);
930}
931
932static void ax88178_unbind(struct usbnet *dev, struct usb_interface *intf)
933{
934 asix_rx_fixup_common_free(dev->driver_priv);
935 kfree(dev->driver_priv);
936}
937
938static const struct ethtool_ops ax88178_ethtool_ops = {
939 .get_drvinfo = asix_get_drvinfo,
940 .get_link = asix_get_link,
941 .get_msglevel = usbnet_get_msglevel,
942 .set_msglevel = usbnet_set_msglevel,
943 .get_wol = asix_get_wol,
944 .set_wol = asix_set_wol,
945 .get_eeprom_len = asix_get_eeprom_len,
946 .get_eeprom = asix_get_eeprom,
947 .set_eeprom = asix_set_eeprom,
948 .nway_reset = usbnet_nway_reset,
949 .get_link_ksettings = usbnet_get_link_ksettings_mii,
950 .set_link_ksettings = usbnet_set_link_ksettings_mii,
951};
952
953static int marvell_phy_init(struct usbnet *dev)
954{
955 struct asix_data *data = (struct asix_data *)&dev->data;
956 u16 reg;
957
958 netdev_dbg(dev->net, "marvell_phy_init()\n");
959
960 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
961 netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
962
963 asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
964 MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
965
966 if (data->ledmode) {
967 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
968 MII_MARVELL_LED_CTRL);
969 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
970
971 reg &= 0xf8ff;
972 reg |= (1 + 0x0100);
973 asix_mdio_write(dev->net, dev->mii.phy_id,
974 MII_MARVELL_LED_CTRL, reg);
975
976 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
977 MII_MARVELL_LED_CTRL);
978 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
979 }
980
981 return 0;
982}
983
984static int rtl8211cl_phy_init(struct usbnet *dev)
985{
986 struct asix_data *data = (struct asix_data *)&dev->data;
987
988 netdev_dbg(dev->net, "rtl8211cl_phy_init()\n");
989
990 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0005);
991 asix_mdio_write (dev->net, dev->mii.phy_id, 0x0c, 0);
992 asix_mdio_write (dev->net, dev->mii.phy_id, 0x01,
993 asix_mdio_read (dev->net, dev->mii.phy_id, 0x01) | 0x0080);
994 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
995
996 if (data->ledmode == 12) {
997 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0x0002);
998 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1a, 0x00cb);
999 asix_mdio_write (dev->net, dev->mii.phy_id, 0x1f, 0);
1000 }
1001
1002 return 0;
1003}
1004
1005static int marvell_led_status(struct usbnet *dev, u16 speed)
1006{
1007 u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
1008
1009 netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
1010
1011 /* Clear out the center LED bits - 0x03F0 */
1012 reg &= 0xfc0f;
1013
1014 switch (speed) {
1015 case SPEED_1000:
1016 reg |= 0x03e0;
1017 break;
1018 case SPEED_100:
1019 reg |= 0x03b0;
1020 break;
1021 default:
1022 reg |= 0x02f0;
1023 }
1024
1025 netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
1026 asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
1027
1028 return 0;
1029}
1030
1031static int ax88178_reset(struct usbnet *dev)
1032{
1033 struct asix_data *data = (struct asix_data *)&dev->data;
1034 int ret;
1035 __le16 eeprom;
1036 u8 status;
1037 int gpio0 = 0;
1038 u32 phyid;
1039
1040 ret = asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status, 0);
1041 if (ret < 0) {
1042 netdev_dbg(dev->net, "Failed to read GPIOS: %d\n", ret);
1043 return ret;
1044 }
1045
1046 netdev_dbg(dev->net, "GPIO Status: 0x%04x\n", status);
1047
1048 asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL, 0);
1049 ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom, 0);
1050 if (ret < 0) {
1051 netdev_dbg(dev->net, "Failed to read EEPROM: %d\n", ret);
1052 return ret;
1053 }
1054
1055 asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL, 0);
1056
1057 netdev_dbg(dev->net, "EEPROM index 0x17 is 0x%04x\n", eeprom);
1058
1059 if (eeprom == cpu_to_le16(0xffff)) {
1060 data->phymode = PHY_MODE_MARVELL;
1061 data->ledmode = 0;
1062 gpio0 = 1;
1063 } else {
1064 data->phymode = le16_to_cpu(eeprom) & 0x7F;
1065 data->ledmode = le16_to_cpu(eeprom) >> 8;
1066 gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
1067 }
1068 netdev_dbg(dev->net, "GPIO0: %d, PhyMode: %d\n", gpio0, data->phymode);
1069
1070 /* Power up external GigaPHY through AX88178 GPIO pin */
1071 asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 |
1072 AX_GPIO_GPO1EN, 40, 0);
1073 if ((le16_to_cpu(eeprom) >> 8) != 1) {
1074 asix_write_gpio(dev, 0x003c, 30, 0);
1075 asix_write_gpio(dev, 0x001c, 300, 0);
1076 asix_write_gpio(dev, 0x003c, 30, 0);
1077 } else {
1078 netdev_dbg(dev->net, "gpio phymode == 1 path\n");
1079 asix_write_gpio(dev, AX_GPIO_GPO1EN, 30, 0);
1080 asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30, 0);
1081 }
1082
1083 /* Read PHYID register *AFTER* powering up PHY */
1084 phyid = asix_get_phyid(dev);
1085 netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid);
1086
1087 /* Set AX88178 to enable MII/GMII/RGMII interface for external PHY */
1088 asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0, 0, 0, NULL, 0);
1089
1090 asix_sw_reset(dev, 0, 0);
1091 msleep(150);
1092
1093 asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0);
1094 msleep(150);
1095
1096 asix_write_rx_ctl(dev, 0, 0);
1097
1098 if (data->phymode == PHY_MODE_MARVELL) {
1099 marvell_phy_init(dev);
1100 msleep(60);
1101 } else if (data->phymode == PHY_MODE_RTL8211CL)
1102 rtl8211cl_phy_init(dev);
1103
1104 asix_phy_reset(dev, BMCR_RESET | BMCR_ANENABLE);
1105 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
1106 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
1107 asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
1108 ADVERTISE_1000FULL);
1109
1110 asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT, 0);
1111 mii_nway_restart(&dev->mii);
1112
1113 /* Rewrite MAC address */
1114 memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN);
1115 ret = asix_write_cmd(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
1116 data->mac_addr, 0);
1117 if (ret < 0)
1118 return ret;
1119
1120 ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL, 0);
1121 if (ret < 0)
1122 return ret;
1123
1124 return 0;
1125}
1126
1127static int ax88178_link_reset(struct usbnet *dev)
1128{
1129 u16 mode;
1130 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
1131 struct asix_data *data = (struct asix_data *)&dev->data;
1132 u32 speed;
1133
1134 netdev_dbg(dev->net, "ax88178_link_reset()\n");
1135
1136 mii_check_media(&dev->mii, 1, 1);
1137 mii_ethtool_gset(&dev->mii, &ecmd);
1138 mode = AX88178_MEDIUM_DEFAULT;
1139 speed = ethtool_cmd_speed(&ecmd);
1140
1141 if (speed == SPEED_1000)
1142 mode |= AX_MEDIUM_GM;
1143 else if (speed == SPEED_100)
1144 mode |= AX_MEDIUM_PS;
1145 else
1146 mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
1147
1148 mode |= AX_MEDIUM_ENCK;
1149
1150 if (ecmd.duplex == DUPLEX_FULL)
1151 mode |= AX_MEDIUM_FD;
1152 else
1153 mode &= ~AX_MEDIUM_FD;
1154
1155 netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
1156 speed, ecmd.duplex, mode);
1157
1158 asix_write_medium_mode(dev, mode, 0);
1159
1160 if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
1161 marvell_led_status(dev, speed);
1162
1163 return 0;
1164}
1165
1166static void ax88178_set_mfb(struct usbnet *dev)
1167{
1168 u16 mfb = AX_RX_CTL_MFB_16384;
1169 u16 rxctl;
1170 u16 medium;
1171 int old_rx_urb_size = dev->rx_urb_size;
1172
1173 if (dev->hard_mtu < 2048) {
1174 dev->rx_urb_size = 2048;
1175 mfb = AX_RX_CTL_MFB_2048;
1176 } else if (dev->hard_mtu < 4096) {
1177 dev->rx_urb_size = 4096;
1178 mfb = AX_RX_CTL_MFB_4096;
1179 } else if (dev->hard_mtu < 8192) {
1180 dev->rx_urb_size = 8192;
1181 mfb = AX_RX_CTL_MFB_8192;
1182 } else if (dev->hard_mtu < 16384) {
1183 dev->rx_urb_size = 16384;
1184 mfb = AX_RX_CTL_MFB_16384;
1185 }
1186
1187 rxctl = asix_read_rx_ctl(dev, 0);
1188 asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb, 0);
1189
1190 medium = asix_read_medium_status(dev, 0);
1191 if (dev->net->mtu > 1500)
1192 medium |= AX_MEDIUM_JFE;
1193 else
1194 medium &= ~AX_MEDIUM_JFE;
1195 asix_write_medium_mode(dev, medium, 0);
1196
1197 if (dev->rx_urb_size > old_rx_urb_size)
1198 usbnet_unlink_rx_urbs(dev);
1199}
1200
1201static int ax88178_change_mtu(struct net_device *net, int new_mtu)
1202{
1203 struct usbnet *dev = netdev_priv(net);
1204 int ll_mtu = new_mtu + net->hard_header_len + 4;
1205
1206 netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
1207
1208 if ((ll_mtu % dev->maxpacket) == 0)
1209 return -EDOM;
1210
1211 net->mtu = new_mtu;
1212 dev->hard_mtu = net->mtu + net->hard_header_len;
1213 ax88178_set_mfb(dev);
1214
1215 /* max qlen depend on hard_mtu and rx_urb_size */
1216 usbnet_update_max_qlen(dev);
1217
1218 return 0;
1219}
1220
1221static const struct net_device_ops ax88178_netdev_ops = {
1222 .ndo_open = usbnet_open,
1223 .ndo_stop = usbnet_stop,
1224 .ndo_start_xmit = usbnet_start_xmit,
1225 .ndo_tx_timeout = usbnet_tx_timeout,
1226 .ndo_get_stats64 = dev_get_tstats64,
1227 .ndo_set_mac_address = asix_set_mac_address,
1228 .ndo_validate_addr = eth_validate_addr,
1229 .ndo_set_rx_mode = asix_set_multicast,
1230 .ndo_eth_ioctl = asix_ioctl,
1231 .ndo_change_mtu = ax88178_change_mtu,
1232};
1233
1234static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
1235{
1236 int ret;
1237 u8 buf[ETH_ALEN] = {0};
1238
1239 usbnet_get_endpoints(dev,intf);
1240
1241 /* Get the MAC address */
1242 ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
1243 if (ret < 0) {
1244 netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
1245 return ret;
1246 }
1247
1248 asix_set_netdev_dev_addr(dev, buf);
1249
1250 /* Initialize MII structure */
1251 dev->mii.dev = dev->net;
1252 dev->mii.mdio_read = asix_mdio_read;
1253 dev->mii.mdio_write = asix_mdio_write;
1254 dev->mii.phy_id_mask = 0x1f;
1255 dev->mii.reg_num_mask = 0xff;
1256 dev->mii.supports_gmii = 1;
1257
1258 dev->mii.phy_id = asix_read_phy_addr(dev, true);
1259 if (dev->mii.phy_id < 0)
1260 return dev->mii.phy_id;
1261
1262 dev->net->netdev_ops = &ax88178_netdev_ops;
1263 dev->net->ethtool_ops = &ax88178_ethtool_ops;
1264 dev->net->max_mtu = 16384 - (dev->net->hard_header_len + 4);
1265
1266 /* Blink LEDS so users know driver saw dongle */
1267 asix_sw_reset(dev, 0, 0);
1268 msleep(150);
1269
1270 asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD, 0);
1271 msleep(150);
1272
1273 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
1274 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
1275 /* hard_mtu is still the default - the device does not support
1276 jumbo eth frames */
1277 dev->rx_urb_size = 2048;
1278 }
1279
1280 dev->driver_priv = kzalloc(sizeof(struct asix_common_private), GFP_KERNEL);
1281 if (!dev->driver_priv)
1282 return -ENOMEM;
1283
1284 return 0;
1285}
1286
1287static const struct driver_info ax8817x_info = {
1288 .description = "ASIX AX8817x USB 2.0 Ethernet",
1289 .bind = ax88172_bind,
1290 .status = asix_status,
1291 .link_reset = ax88172_link_reset,
1292 .reset = ax88172_link_reset,
1293 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1294 .data = 0x00130103,
1295};
1296
1297static const struct driver_info dlink_dub_e100_info = {
1298 .description = "DLink DUB-E100 USB Ethernet",
1299 .bind = ax88172_bind,
1300 .status = asix_status,
1301 .link_reset = ax88172_link_reset,
1302 .reset = ax88172_link_reset,
1303 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1304 .data = 0x009f9d9f,
1305};
1306
1307static const struct driver_info netgear_fa120_info = {
1308 .description = "Netgear FA-120 USB Ethernet",
1309 .bind = ax88172_bind,
1310 .status = asix_status,
1311 .link_reset = ax88172_link_reset,
1312 .reset = ax88172_link_reset,
1313 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1314 .data = 0x00130103,
1315};
1316
1317static const struct driver_info hawking_uf200_info = {
1318 .description = "Hawking UF200 USB Ethernet",
1319 .bind = ax88172_bind,
1320 .status = asix_status,
1321 .link_reset = ax88172_link_reset,
1322 .reset = ax88172_link_reset,
1323 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1324 .data = 0x001f1d1f,
1325};
1326
1327static const struct driver_info ax88772_info = {
1328 .description = "ASIX AX88772 USB 2.0 Ethernet",
1329 .bind = ax88772_bind,
1330 .unbind = ax88772_unbind,
1331 .status = asix_status,
1332 .reset = ax88772_reset,
1333 .stop = ax88772_stop,
1334 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET,
1335 .rx_fixup = asix_rx_fixup_common,
1336 .tx_fixup = asix_tx_fixup,
1337};
1338
1339static const struct driver_info ax88772b_info = {
1340 .description = "ASIX AX88772B USB 2.0 Ethernet",
1341 .bind = ax88772_bind,
1342 .unbind = ax88772_unbind,
1343 .status = asix_status,
1344 .reset = ax88772_reset,
1345 .stop = ax88772_stop,
1346 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1347 FLAG_MULTI_PACKET,
1348 .rx_fixup = asix_rx_fixup_common,
1349 .tx_fixup = asix_tx_fixup,
1350 .data = FLAG_EEPROM_MAC,
1351};
1352
1353static const struct driver_info lxausb_t1l_info = {
1354 .description = "Linux Automation GmbH USB 10Base-T1L",
1355 .bind = ax88772_bind,
1356 .unbind = ax88772_unbind,
1357 .status = asix_status,
1358 .reset = ax88772_reset,
1359 .stop = ax88772_stop,
1360 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1361 FLAG_MULTI_PACKET,
1362 .rx_fixup = asix_rx_fixup_common,
1363 .tx_fixup = asix_tx_fixup,
1364 .data = FLAG_EEPROM_MAC,
1365};
1366
1367static const struct driver_info ax88178_info = {
1368 .description = "ASIX AX88178 USB 2.0 Ethernet",
1369 .bind = ax88178_bind,
1370 .unbind = ax88178_unbind,
1371 .status = asix_status,
1372 .link_reset = ax88178_link_reset,
1373 .reset = ax88178_reset,
1374 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1375 FLAG_MULTI_PACKET,
1376 .rx_fixup = asix_rx_fixup_common,
1377 .tx_fixup = asix_tx_fixup,
1378};
1379
1380/*
1381 * USBLINK 20F9 "USB 2.0 LAN" USB ethernet adapter, typically found in
1382 * no-name packaging.
1383 * USB device strings are:
1384 * 1: Manufacturer: USBLINK
1385 * 2: Product: HG20F9 USB2.0
1386 * 3: Serial: 000003
1387 * Appears to be compatible with Asix 88772B.
1388 */
1389static const struct driver_info hg20f9_info = {
1390 .description = "HG20F9 USB 2.0 Ethernet",
1391 .bind = ax88772_bind,
1392 .unbind = ax88772_unbind,
1393 .status = asix_status,
1394 .reset = ax88772_reset,
1395 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR |
1396 FLAG_MULTI_PACKET,
1397 .rx_fixup = asix_rx_fixup_common,
1398 .tx_fixup = asix_tx_fixup,
1399 .data = FLAG_EEPROM_MAC,
1400};
1401
1402static const struct usb_device_id products [] = {
1403{
1404 // Linksys USB200M
1405 USB_DEVICE (0x077b, 0x2226),
1406 .driver_info = (unsigned long) &ax8817x_info,
1407}, {
1408 // Netgear FA120
1409 USB_DEVICE (0x0846, 0x1040),
1410 .driver_info = (unsigned long) &netgear_fa120_info,
1411}, {
1412 // DLink DUB-E100
1413 USB_DEVICE (0x2001, 0x1a00),
1414 .driver_info = (unsigned long) &dlink_dub_e100_info,
1415}, {
1416 // Intellinet, ST Lab USB Ethernet
1417 USB_DEVICE (0x0b95, 0x1720),
1418 .driver_info = (unsigned long) &ax8817x_info,
1419}, {
1420 // Hawking UF200, TrendNet TU2-ET100
1421 USB_DEVICE (0x07b8, 0x420a),
1422 .driver_info = (unsigned long) &hawking_uf200_info,
1423}, {
1424 // Billionton Systems, USB2AR
1425 USB_DEVICE (0x08dd, 0x90ff),
1426 .driver_info = (unsigned long) &ax8817x_info,
1427}, {
1428 // Billionton Systems, GUSB2AM-1G-B
1429 USB_DEVICE(0x08dd, 0x0114),
1430 .driver_info = (unsigned long) &ax88178_info,
1431}, {
1432 // ATEN UC210T
1433 USB_DEVICE (0x0557, 0x2009),
1434 .driver_info = (unsigned long) &ax8817x_info,
1435}, {
1436 // Buffalo LUA-U2-KTX
1437 USB_DEVICE (0x0411, 0x003d),
1438 .driver_info = (unsigned long) &ax8817x_info,
1439}, {
1440 // Buffalo LUA-U2-GT 10/100/1000
1441 USB_DEVICE (0x0411, 0x006e),
1442 .driver_info = (unsigned long) &ax88178_info,
1443}, {
1444 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
1445 USB_DEVICE (0x6189, 0x182d),
1446 .driver_info = (unsigned long) &ax8817x_info,
1447}, {
1448 // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
1449 USB_DEVICE (0x0df6, 0x0056),
1450 .driver_info = (unsigned long) &ax88178_info,
1451}, {
1452 // Sitecom LN-028 "USB 2.0 10/100/1000 Ethernet adapter"
1453 USB_DEVICE (0x0df6, 0x061c),
1454 .driver_info = (unsigned long) &ax88178_info,
1455}, {
1456 // corega FEther USB2-TX
1457 USB_DEVICE (0x07aa, 0x0017),
1458 .driver_info = (unsigned long) &ax8817x_info,
1459}, {
1460 // Surecom EP-1427X-2
1461 USB_DEVICE (0x1189, 0x0893),
1462 .driver_info = (unsigned long) &ax8817x_info,
1463}, {
1464 // goodway corp usb gwusb2e
1465 USB_DEVICE (0x1631, 0x6200),
1466 .driver_info = (unsigned long) &ax8817x_info,
1467}, {
1468 // JVC MP-PRX1 Port Replicator
1469 USB_DEVICE (0x04f1, 0x3008),
1470 .driver_info = (unsigned long) &ax8817x_info,
1471}, {
1472 // Lenovo U2L100P 10/100
1473 USB_DEVICE (0x17ef, 0x7203),
1474 .driver_info = (unsigned long)&ax88772b_info,
1475}, {
1476 // ASIX AX88772B 10/100
1477 USB_DEVICE (0x0b95, 0x772b),
1478 .driver_info = (unsigned long) &ax88772b_info,
1479}, {
1480 // ASIX AX88772 10/100
1481 USB_DEVICE (0x0b95, 0x7720),
1482 .driver_info = (unsigned long) &ax88772_info,
1483}, {
1484 // ASIX AX88178 10/100/1000
1485 USB_DEVICE (0x0b95, 0x1780),
1486 .driver_info = (unsigned long) &ax88178_info,
1487}, {
1488 // Logitec LAN-GTJ/U2A
1489 USB_DEVICE (0x0789, 0x0160),
1490 .driver_info = (unsigned long) &ax88178_info,
1491}, {
1492 // Linksys USB200M Rev 2
1493 USB_DEVICE (0x13b1, 0x0018),
1494 .driver_info = (unsigned long) &ax88772_info,
1495}, {
1496 // 0Q0 cable ethernet
1497 USB_DEVICE (0x1557, 0x7720),
1498 .driver_info = (unsigned long) &ax88772_info,
1499}, {
1500 // DLink DUB-E100 H/W Ver B1
1501 USB_DEVICE (0x07d1, 0x3c05),
1502 .driver_info = (unsigned long) &ax88772_info,
1503}, {
1504 // DLink DUB-E100 H/W Ver B1 Alternate
1505 USB_DEVICE (0x2001, 0x3c05),
1506 .driver_info = (unsigned long) &ax88772_info,
1507}, {
1508 // DLink DUB-E100 H/W Ver C1
1509 USB_DEVICE (0x2001, 0x1a02),
1510 .driver_info = (unsigned long) &ax88772_info,
1511}, {
1512 // Linksys USB1000
1513 USB_DEVICE (0x1737, 0x0039),
1514 .driver_info = (unsigned long) &ax88178_info,
1515}, {
1516 // IO-DATA ETG-US2
1517 USB_DEVICE (0x04bb, 0x0930),
1518 .driver_info = (unsigned long) &ax88178_info,
1519}, {
1520 // Belkin F5D5055
1521 USB_DEVICE(0x050d, 0x5055),
1522 .driver_info = (unsigned long) &ax88178_info,
1523}, {
1524 // Apple USB Ethernet Adapter
1525 USB_DEVICE(0x05ac, 0x1402),
1526 .driver_info = (unsigned long) &ax88772_info,
1527}, {
1528 // Cables-to-Go USB Ethernet Adapter
1529 USB_DEVICE(0x0b95, 0x772a),
1530 .driver_info = (unsigned long) &ax88772_info,
1531}, {
1532 // ABOCOM for pci
1533 USB_DEVICE(0x14ea, 0xab11),
1534 .driver_info = (unsigned long) &ax88178_info,
1535}, {
1536 // ASIX 88772a
1537 USB_DEVICE(0x0db0, 0xa877),
1538 .driver_info = (unsigned long) &ax88772_info,
1539}, {
1540 // Asus USB Ethernet Adapter
1541 USB_DEVICE (0x0b95, 0x7e2b),
1542 .driver_info = (unsigned long)&ax88772b_info,
1543}, {
1544 /* ASIX 88172a demo board */
1545 USB_DEVICE(0x0b95, 0x172a),
1546 .driver_info = (unsigned long) &ax88172a_info,
1547}, {
1548 /*
1549 * USBLINK HG20F9 "USB 2.0 LAN"
1550 * Appears to have gazumped Linksys's manufacturer ID but
1551 * doesn't (yet) conflict with any known Linksys product.
1552 */
1553 USB_DEVICE(0x066b, 0x20f9),
1554 .driver_info = (unsigned long) &hg20f9_info,
1555}, {
1556 // Linux Automation GmbH USB 10Base-T1L
1557 USB_DEVICE(0x33f7, 0x0004),
1558 .driver_info = (unsigned long) &lxausb_t1l_info,
1559},
1560 { }, // END
1561};
1562MODULE_DEVICE_TABLE(usb, products);
1563
1564static struct usb_driver asix_driver = {
1565 .name = DRIVER_NAME,
1566 .id_table = products,
1567 .probe = usbnet_probe,
1568 .suspend = asix_suspend,
1569 .resume = asix_resume,
1570 .reset_resume = asix_resume,
1571 .disconnect = usbnet_disconnect,
1572 .supports_autosuspend = 1,
1573 .disable_hub_initiated_lpm = 1,
1574};
1575
1576module_usb_driver(asix_driver);
1577
1578MODULE_AUTHOR("David Hollis");
1579MODULE_VERSION(DRIVER_VERSION);
1580MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1581MODULE_LICENSE("GPL");
1582