asix.c 41 KB

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  1. /*
  2. * ASIX AX8817X based USB 2.0 Ethernet Devices
  3. * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com>
  4. * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
  5. * Copyright (C) 2006 James Painter <jamie.painter@iname.com>
  6. * Copyright (c) 2002-2003 TiVo Inc.
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21. */
  22. // #define DEBUG // error path messages, extra info
  23. // #define VERBOSE // more; success messages
  24. #include <linux/module.h>
  25. #include <linux/kmod.h>
  26. #include <linux/init.h>
  27. #include <linux/netdevice.h>
  28. #include <linux/etherdevice.h>
  29. #include <linux/ethtool.h>
  30. #include <linux/workqueue.h>
  31. #include <linux/mii.h>
  32. #include <linux/usb.h>
  33. #include <linux/crc32.h>
  34. #include <linux/usb/usbnet.h>
  35. #include <linux/slab.h>
  36. #define DRIVER_VERSION "14-Jun-2006"
  37. static const char driver_name [] = "asix";
  38. /* ASIX AX8817X based USB 2.0 Ethernet Devices */
  39. #define AX_CMD_SET_SW_MII 0x06
  40. #define AX_CMD_READ_MII_REG 0x07
  41. #define AX_CMD_WRITE_MII_REG 0x08
  42. #define AX_CMD_SET_HW_MII 0x0a
  43. #define AX_CMD_READ_EEPROM 0x0b
  44. #define AX_CMD_WRITE_EEPROM 0x0c
  45. #define AX_CMD_WRITE_ENABLE 0x0d
  46. #define AX_CMD_WRITE_DISABLE 0x0e
  47. #define AX_CMD_READ_RX_CTL 0x0f
  48. #define AX_CMD_WRITE_RX_CTL 0x10
  49. #define AX_CMD_READ_IPG012 0x11
  50. #define AX_CMD_WRITE_IPG0 0x12
  51. #define AX_CMD_WRITE_IPG1 0x13
  52. #define AX_CMD_READ_NODE_ID 0x13
  53. #define AX_CMD_WRITE_NODE_ID 0x14
  54. #define AX_CMD_WRITE_IPG2 0x14
  55. #define AX_CMD_WRITE_MULTI_FILTER 0x16
  56. #define AX88172_CMD_READ_NODE_ID 0x17
  57. #define AX_CMD_READ_PHY_ID 0x19
  58. #define AX_CMD_READ_MEDIUM_STATUS 0x1a
  59. #define AX_CMD_WRITE_MEDIUM_MODE 0x1b
  60. #define AX_CMD_READ_MONITOR_MODE 0x1c
  61. #define AX_CMD_WRITE_MONITOR_MODE 0x1d
  62. #define AX_CMD_READ_GPIOS 0x1e
  63. #define AX_CMD_WRITE_GPIOS 0x1f
  64. #define AX_CMD_SW_RESET 0x20
  65. #define AX_CMD_SW_PHY_STATUS 0x21
  66. #define AX_CMD_SW_PHY_SELECT 0x22
  67. #define AX_MONITOR_MODE 0x01
  68. #define AX_MONITOR_LINK 0x02
  69. #define AX_MONITOR_MAGIC 0x04
  70. #define AX_MONITOR_HSFS 0x10
  71. /* AX88172 Medium Status Register values */
  72. #define AX88172_MEDIUM_FD 0x02
  73. #define AX88172_MEDIUM_TX 0x04
  74. #define AX88172_MEDIUM_FC 0x10
  75. #define AX88172_MEDIUM_DEFAULT \
  76. ( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC )
  77. #define AX_MCAST_FILTER_SIZE 8
  78. #define AX_MAX_MCAST 64
  79. #define AX_SWRESET_CLEAR 0x00
  80. #define AX_SWRESET_RR 0x01
  81. #define AX_SWRESET_RT 0x02
  82. #define AX_SWRESET_PRTE 0x04
  83. #define AX_SWRESET_PRL 0x08
  84. #define AX_SWRESET_BZ 0x10
  85. #define AX_SWRESET_IPRL 0x20
  86. #define AX_SWRESET_IPPD 0x40
  87. #define AX88772_IPG0_DEFAULT 0x15
  88. #define AX88772_IPG1_DEFAULT 0x0c
  89. #define AX88772_IPG2_DEFAULT 0x12
  90. /* AX88772 & AX88178 Medium Mode Register */
  91. #define AX_MEDIUM_PF 0x0080
  92. #define AX_MEDIUM_JFE 0x0040
  93. #define AX_MEDIUM_TFC 0x0020
  94. #define AX_MEDIUM_RFC 0x0010
  95. #define AX_MEDIUM_ENCK 0x0008
  96. #define AX_MEDIUM_AC 0x0004
  97. #define AX_MEDIUM_FD 0x0002
  98. #define AX_MEDIUM_GM 0x0001
  99. #define AX_MEDIUM_SM 0x1000
  100. #define AX_MEDIUM_SBP 0x0800
  101. #define AX_MEDIUM_PS 0x0200
  102. #define AX_MEDIUM_RE 0x0100
  103. #define AX88178_MEDIUM_DEFAULT \
  104. (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \
  105. AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \
  106. AX_MEDIUM_RE )
  107. #define AX88772_MEDIUM_DEFAULT \
  108. (AX_MEDIUM_FD | AX_MEDIUM_RFC | \
  109. AX_MEDIUM_TFC | AX_MEDIUM_PS | \
  110. AX_MEDIUM_AC | AX_MEDIUM_RE )
  111. /* AX88772 & AX88178 RX_CTL values */
  112. #define AX_RX_CTL_SO 0x0080
  113. #define AX_RX_CTL_AP 0x0020
  114. #define AX_RX_CTL_AM 0x0010
  115. #define AX_RX_CTL_AB 0x0008
  116. #define AX_RX_CTL_SEP 0x0004
  117. #define AX_RX_CTL_AMALL 0x0002
  118. #define AX_RX_CTL_PRO 0x0001
  119. #define AX_RX_CTL_MFB_2048 0x0000
  120. #define AX_RX_CTL_MFB_4096 0x0100
  121. #define AX_RX_CTL_MFB_8192 0x0200
  122. #define AX_RX_CTL_MFB_16384 0x0300
  123. #define AX_DEFAULT_RX_CTL \
  124. (AX_RX_CTL_SO | AX_RX_CTL_AB )
  125. /* GPIO 0 .. 2 toggles */
  126. #define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */
  127. #define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */
  128. #define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */
  129. #define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */
  130. #define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */
  131. #define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */
  132. #define AX_GPIO_RESERVED 0x40 /* Reserved */
  133. #define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */
  134. #define AX_EEPROM_MAGIC 0xdeadbeef
  135. #define AX88172_EEPROM_LEN 0x40
  136. #define AX88772_EEPROM_LEN 0xff
  137. #define PHY_MODE_MARVELL 0x0000
  138. #define MII_MARVELL_LED_CTRL 0x0018
  139. #define MII_MARVELL_STATUS 0x001b
  140. #define MII_MARVELL_CTRL 0x0014
  141. #define MARVELL_LED_MANUAL 0x0019
  142. #define MARVELL_STATUS_HWCFG 0x0004
  143. #define MARVELL_CTRL_TXDELAY 0x0002
  144. #define MARVELL_CTRL_RXDELAY 0x0080
  145. /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
  146. struct asix_data {
  147. u8 multi_filter[AX_MCAST_FILTER_SIZE];
  148. u8 mac_addr[ETH_ALEN];
  149. u8 phymode;
  150. u8 ledmode;
  151. u8 eeprom_len;
  152. };
  153. struct ax88172_int_data {
  154. __le16 res1;
  155. u8 link;
  156. __le16 res2;
  157. u8 status;
  158. __le16 res3;
  159. } __packed;
  160. static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  161. u16 size, void *data)
  162. {
  163. void *buf;
  164. int err = -ENOMEM;
  165. netdev_dbg(dev->net, "asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
  166. cmd, value, index, size);
  167. buf = kmalloc(size, GFP_KERNEL);
  168. if (!buf)
  169. goto out;
  170. err = usb_control_msg(
  171. dev->udev,
  172. usb_rcvctrlpipe(dev->udev, 0),
  173. cmd,
  174. USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
  175. value,
  176. index,
  177. buf,
  178. size,
  179. USB_CTRL_GET_TIMEOUT);
  180. if (err == size)
  181. memcpy(data, buf, size);
  182. else if (err >= 0)
  183. err = -EINVAL;
  184. kfree(buf);
  185. out:
  186. return err;
  187. }
  188. static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  189. u16 size, void *data)
  190. {
  191. void *buf = NULL;
  192. int err = -ENOMEM;
  193. netdev_dbg(dev->net, "asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
  194. cmd, value, index, size);
  195. if (data) {
  196. buf = kmemdup(data, size, GFP_KERNEL);
  197. if (!buf)
  198. goto out;
  199. }
  200. err = usb_control_msg(
  201. dev->udev,
  202. usb_sndctrlpipe(dev->udev, 0),
  203. cmd,
  204. USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
  205. value,
  206. index,
  207. buf,
  208. size,
  209. USB_CTRL_SET_TIMEOUT);
  210. kfree(buf);
  211. out:
  212. return err;
  213. }
  214. static void asix_async_cmd_callback(struct urb *urb)
  215. {
  216. struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
  217. int status = urb->status;
  218. if (status < 0)
  219. printk(KERN_DEBUG "asix_async_cmd_callback() failed with %d",
  220. status);
  221. kfree(req);
  222. usb_free_urb(urb);
  223. }
  224. static void
  225. asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
  226. u16 size, void *data)
  227. {
  228. struct usb_ctrlrequest *req;
  229. int status;
  230. struct urb *urb;
  231. netdev_dbg(dev->net, "asix_write_cmd_async() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
  232. cmd, value, index, size);
  233. if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
  234. netdev_err(dev->net, "Error allocating URB in write_cmd_async!\n");
  235. return;
  236. }
  237. if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
  238. netdev_err(dev->net, "Failed to allocate memory for control request\n");
  239. usb_free_urb(urb);
  240. return;
  241. }
  242. req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
  243. req->bRequest = cmd;
  244. req->wValue = cpu_to_le16(value);
  245. req->wIndex = cpu_to_le16(index);
  246. req->wLength = cpu_to_le16(size);
  247. usb_fill_control_urb(urb, dev->udev,
  248. usb_sndctrlpipe(dev->udev, 0),
  249. (void *)req, data, size,
  250. asix_async_cmd_callback, req);
  251. if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
  252. netdev_err(dev->net, "Error submitting the control message: status=%d\n",
  253. status);
  254. kfree(req);
  255. usb_free_urb(urb);
  256. }
  257. }
  258. static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
  259. {
  260. u8 *head;
  261. u32 header;
  262. char *packet;
  263. struct sk_buff *ax_skb;
  264. u16 size;
  265. head = (u8 *) skb->data;
  266. memcpy(&header, head, sizeof(header));
  267. le32_to_cpus(&header);
  268. packet = head + sizeof(header);
  269. skb_pull(skb, 4);
  270. while (skb->len > 0) {
  271. if ((header & 0x07ff) != ((~header >> 16) & 0x07ff))
  272. netdev_err(dev->net, "asix_rx_fixup() Bad Header Length\n");
  273. /* get the packet length */
  274. size = (u16) (header & 0x000007ff);
  275. if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
  276. u8 alignment = (unsigned long)skb->data & 0x3;
  277. if (alignment != 0x2) {
  278. /*
  279. * not 16bit aligned so use the room provided by
  280. * the 32 bit header to align the data
  281. *
  282. * note we want 16bit alignment as MAC header is
  283. * 14bytes thus ip header will be aligned on
  284. * 32bit boundary so accessing ipheader elements
  285. * using a cast to struct ip header wont cause
  286. * an unaligned accesses.
  287. */
  288. u8 realignment = (alignment + 2) & 0x3;
  289. memmove(skb->data - realignment,
  290. skb->data,
  291. size);
  292. skb->data -= realignment;
  293. skb_set_tail_pointer(skb, size);
  294. }
  295. return 2;
  296. }
  297. if (size > dev->net->mtu + ETH_HLEN) {
  298. netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
  299. size);
  300. return 0;
  301. }
  302. ax_skb = skb_clone(skb, GFP_ATOMIC);
  303. if (ax_skb) {
  304. u8 alignment = (unsigned long)packet & 0x3;
  305. ax_skb->len = size;
  306. if (alignment != 0x2) {
  307. /*
  308. * not 16bit aligned use the room provided by
  309. * the 32 bit header to align the data
  310. */
  311. u8 realignment = (alignment + 2) & 0x3;
  312. memmove(packet - realignment, packet, size);
  313. packet -= realignment;
  314. }
  315. ax_skb->data = packet;
  316. skb_set_tail_pointer(ax_skb, size);
  317. usbnet_skb_return(dev, ax_skb);
  318. } else {
  319. return 0;
  320. }
  321. skb_pull(skb, (size + 1) & 0xfffe);
  322. if (skb->len < sizeof(header))
  323. break;
  324. head = (u8 *) skb->data;
  325. memcpy(&header, head, sizeof(header));
  326. le32_to_cpus(&header);
  327. packet = head + sizeof(header);
  328. skb_pull(skb, 4);
  329. }
  330. if (skb->len < 0) {
  331. netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d\n",
  332. skb->len);
  333. return 0;
  334. }
  335. return 1;
  336. }
  337. static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
  338. gfp_t flags)
  339. {
  340. int padlen;
  341. int headroom = skb_headroom(skb);
  342. int tailroom = skb_tailroom(skb);
  343. u32 packet_len;
  344. u32 padbytes = 0xffff0000;
  345. padlen = ((skb->len + 4) % 512) ? 0 : 4;
  346. if ((!skb_cloned(skb)) &&
  347. ((headroom + tailroom) >= (4 + padlen))) {
  348. if ((headroom < 4) || (tailroom < padlen)) {
  349. skb->data = memmove(skb->head + 4, skb->data, skb->len);
  350. skb_set_tail_pointer(skb, skb->len);
  351. }
  352. } else {
  353. struct sk_buff *skb2;
  354. skb2 = skb_copy_expand(skb, 4, padlen, flags);
  355. dev_kfree_skb_any(skb);
  356. skb = skb2;
  357. if (!skb)
  358. return NULL;
  359. }
  360. skb_push(skb, 4);
  361. packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
  362. cpu_to_le32s(&packet_len);
  363. skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
  364. if ((skb->len % 512) == 0) {
  365. cpu_to_le32s(&padbytes);
  366. memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
  367. skb_put(skb, sizeof(padbytes));
  368. }
  369. return skb;
  370. }
  371. static void asix_status(struct usbnet *dev, struct urb *urb)
  372. {
  373. struct ax88172_int_data *event;
  374. int link;
  375. if (urb->actual_length < 8)
  376. return;
  377. event = urb->transfer_buffer;
  378. link = event->link & 0x01;
  379. if (netif_carrier_ok(dev->net) != link) {
  380. if (link) {
  381. netif_carrier_on(dev->net);
  382. usbnet_defer_kevent (dev, EVENT_LINK_RESET );
  383. } else
  384. netif_carrier_off(dev->net);
  385. netdev_dbg(dev->net, "Link Status is: %d\n", link);
  386. }
  387. }
  388. static inline int asix_set_sw_mii(struct usbnet *dev)
  389. {
  390. int ret;
  391. ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
  392. if (ret < 0)
  393. netdev_err(dev->net, "Failed to enable software MII access\n");
  394. return ret;
  395. }
  396. static inline int asix_set_hw_mii(struct usbnet *dev)
  397. {
  398. int ret;
  399. ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
  400. if (ret < 0)
  401. netdev_err(dev->net, "Failed to enable hardware MII access\n");
  402. return ret;
  403. }
  404. static inline int asix_get_phy_addr(struct usbnet *dev)
  405. {
  406. u8 buf[2];
  407. int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);
  408. netdev_dbg(dev->net, "asix_get_phy_addr()\n");
  409. if (ret < 0) {
  410. netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret);
  411. goto out;
  412. }
  413. netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n",
  414. *((__le16 *)buf));
  415. ret = buf[1];
  416. out:
  417. return ret;
  418. }
  419. static int asix_sw_reset(struct usbnet *dev, u8 flags)
  420. {
  421. int ret;
  422. ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL);
  423. if (ret < 0)
  424. netdev_err(dev->net, "Failed to send software reset: %02x\n", ret);
  425. return ret;
  426. }
  427. static u16 asix_read_rx_ctl(struct usbnet *dev)
  428. {
  429. __le16 v;
  430. int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);
  431. if (ret < 0) {
  432. netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret);
  433. goto out;
  434. }
  435. ret = le16_to_cpu(v);
  436. out:
  437. return ret;
  438. }
  439. static int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
  440. {
  441. int ret;
  442. netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode);
  443. ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
  444. if (ret < 0)
  445. netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n",
  446. mode, ret);
  447. return ret;
  448. }
  449. static u16 asix_read_medium_status(struct usbnet *dev)
  450. {
  451. __le16 v;
  452. int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);
  453. if (ret < 0) {
  454. netdev_err(dev->net, "Error reading Medium Status register: %02x\n",
  455. ret);
  456. goto out;
  457. }
  458. ret = le16_to_cpu(v);
  459. out:
  460. return ret;
  461. }
  462. static int asix_write_medium_mode(struct usbnet *dev, u16 mode)
  463. {
  464. int ret;
  465. netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode);
  466. ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
  467. if (ret < 0)
  468. netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n",
  469. mode, ret);
  470. return ret;
  471. }
  472. static int asix_write_gpio(struct usbnet *dev, u16 value, int sleep)
  473. {
  474. int ret;
  475. netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value);
  476. ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL);
  477. if (ret < 0)
  478. netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n",
  479. value, ret);
  480. if (sleep)
  481. msleep(sleep);
  482. return ret;
  483. }
  484. /*
  485. * AX88772 & AX88178 have a 16-bit RX_CTL value
  486. */
  487. static void asix_set_multicast(struct net_device *net)
  488. {
  489. struct usbnet *dev = netdev_priv(net);
  490. struct asix_data *data = (struct asix_data *)&dev->data;
  491. u16 rx_ctl = AX_DEFAULT_RX_CTL;
  492. if (net->flags & IFF_PROMISC) {
  493. rx_ctl |= AX_RX_CTL_PRO;
  494. } else if (net->flags & IFF_ALLMULTI ||
  495. netdev_mc_count(net) > AX_MAX_MCAST) {
  496. rx_ctl |= AX_RX_CTL_AMALL;
  497. } else if (netdev_mc_empty(net)) {
  498. /* just broadcast and directed */
  499. } else {
  500. /* We use the 20 byte dev->data
  501. * for our 8 byte filter buffer
  502. * to avoid allocating memory that
  503. * is tricky to free later */
  504. struct netdev_hw_addr *ha;
  505. u32 crc_bits;
  506. memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
  507. /* Build the multicast hash filter. */
  508. netdev_for_each_mc_addr(ha, net) {
  509. crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
  510. data->multi_filter[crc_bits >> 3] |=
  511. 1 << (crc_bits & 7);
  512. }
  513. asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
  514. AX_MCAST_FILTER_SIZE, data->multi_filter);
  515. rx_ctl |= AX_RX_CTL_AM;
  516. }
  517. asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
  518. }
  519. static int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
  520. {
  521. struct usbnet *dev = netdev_priv(netdev);
  522. __le16 res;
  523. mutex_lock(&dev->phy_mutex);
  524. asix_set_sw_mii(dev);
  525. asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
  526. (__u16)loc, 2, &res);
  527. asix_set_hw_mii(dev);
  528. mutex_unlock(&dev->phy_mutex);
  529. netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
  530. phy_id, loc, le16_to_cpu(res));
  531. return le16_to_cpu(res);
  532. }
  533. static void
  534. asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
  535. {
  536. struct usbnet *dev = netdev_priv(netdev);
  537. __le16 res = cpu_to_le16(val);
  538. netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
  539. phy_id, loc, val);
  540. mutex_lock(&dev->phy_mutex);
  541. asix_set_sw_mii(dev);
  542. asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
  543. asix_set_hw_mii(dev);
  544. mutex_unlock(&dev->phy_mutex);
  545. }
  546. /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
  547. static u32 asix_get_phyid(struct usbnet *dev)
  548. {
  549. int phy_reg;
  550. u32 phy_id;
  551. phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
  552. if (phy_reg < 0)
  553. return 0;
  554. phy_id = (phy_reg & 0xffff) << 16;
  555. phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
  556. if (phy_reg < 0)
  557. return 0;
  558. phy_id |= (phy_reg & 0xffff);
  559. return phy_id;
  560. }
  561. static void
  562. asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
  563. {
  564. struct usbnet *dev = netdev_priv(net);
  565. u8 opt;
  566. if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
  567. wolinfo->supported = 0;
  568. wolinfo->wolopts = 0;
  569. return;
  570. }
  571. wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
  572. wolinfo->wolopts = 0;
  573. if (opt & AX_MONITOR_MODE) {
  574. if (opt & AX_MONITOR_LINK)
  575. wolinfo->wolopts |= WAKE_PHY;
  576. if (opt & AX_MONITOR_MAGIC)
  577. wolinfo->wolopts |= WAKE_MAGIC;
  578. }
  579. }
  580. static int
  581. asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
  582. {
  583. struct usbnet *dev = netdev_priv(net);
  584. u8 opt = 0;
  585. if (wolinfo->wolopts & WAKE_PHY)
  586. opt |= AX_MONITOR_LINK;
  587. if (wolinfo->wolopts & WAKE_MAGIC)
  588. opt |= AX_MONITOR_MAGIC;
  589. if (opt != 0)
  590. opt |= AX_MONITOR_MODE;
  591. if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
  592. opt, 0, 0, NULL) < 0)
  593. return -EINVAL;
  594. return 0;
  595. }
  596. static int asix_get_eeprom_len(struct net_device *net)
  597. {
  598. struct usbnet *dev = netdev_priv(net);
  599. struct asix_data *data = (struct asix_data *)&dev->data;
  600. return data->eeprom_len;
  601. }
  602. static int asix_get_eeprom(struct net_device *net,
  603. struct ethtool_eeprom *eeprom, u8 *data)
  604. {
  605. struct usbnet *dev = netdev_priv(net);
  606. __le16 *ebuf = (__le16 *)data;
  607. int i;
  608. /* Crude hack to ensure that we don't overwrite memory
  609. * if an odd length is supplied
  610. */
  611. if (eeprom->len % 2)
  612. return -EINVAL;
  613. eeprom->magic = AX_EEPROM_MAGIC;
  614. /* ax8817x returns 2 bytes from eeprom on read */
  615. for (i=0; i < eeprom->len / 2; i++) {
  616. if (asix_read_cmd(dev, AX_CMD_READ_EEPROM,
  617. eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
  618. return -EINVAL;
  619. }
  620. return 0;
  621. }
  622. static void asix_get_drvinfo (struct net_device *net,
  623. struct ethtool_drvinfo *info)
  624. {
  625. struct usbnet *dev = netdev_priv(net);
  626. struct asix_data *data = (struct asix_data *)&dev->data;
  627. /* Inherit standard device info */
  628. usbnet_get_drvinfo(net, info);
  629. strncpy (info->driver, driver_name, sizeof info->driver);
  630. strncpy (info->version, DRIVER_VERSION, sizeof info->version);
  631. info->eedump_len = data->eeprom_len;
  632. }
  633. static u32 asix_get_link(struct net_device *net)
  634. {
  635. struct usbnet *dev = netdev_priv(net);
  636. return mii_link_ok(&dev->mii);
  637. }
  638. static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
  639. {
  640. struct usbnet *dev = netdev_priv(net);
  641. return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
  642. }
  643. static int asix_set_mac_address(struct net_device *net, void *p)
  644. {
  645. struct usbnet *dev = netdev_priv(net);
  646. struct asix_data *data = (struct asix_data *)&dev->data;
  647. struct sockaddr *addr = p;
  648. if (netif_running(net))
  649. return -EBUSY;
  650. if (!is_valid_ether_addr(addr->sa_data))
  651. return -EADDRNOTAVAIL;
  652. memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
  653. /* We use the 20 byte dev->data
  654. * for our 6 byte mac buffer
  655. * to avoid allocating memory that
  656. * is tricky to free later */
  657. memcpy(data->mac_addr, addr->sa_data, ETH_ALEN);
  658. asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
  659. data->mac_addr);
  660. return 0;
  661. }
  662. /* We need to override some ethtool_ops so we require our
  663. own structure so we don't interfere with other usbnet
  664. devices that may be connected at the same time. */
  665. static const struct ethtool_ops ax88172_ethtool_ops = {
  666. .get_drvinfo = asix_get_drvinfo,
  667. .get_link = asix_get_link,
  668. .get_msglevel = usbnet_get_msglevel,
  669. .set_msglevel = usbnet_set_msglevel,
  670. .get_wol = asix_get_wol,
  671. .set_wol = asix_set_wol,
  672. .get_eeprom_len = asix_get_eeprom_len,
  673. .get_eeprom = asix_get_eeprom,
  674. .get_settings = usbnet_get_settings,
  675. .set_settings = usbnet_set_settings,
  676. .nway_reset = usbnet_nway_reset,
  677. };
  678. static void ax88172_set_multicast(struct net_device *net)
  679. {
  680. struct usbnet *dev = netdev_priv(net);
  681. struct asix_data *data = (struct asix_data *)&dev->data;
  682. u8 rx_ctl = 0x8c;
  683. if (net->flags & IFF_PROMISC) {
  684. rx_ctl |= 0x01;
  685. } else if (net->flags & IFF_ALLMULTI ||
  686. netdev_mc_count(net) > AX_MAX_MCAST) {
  687. rx_ctl |= 0x02;
  688. } else if (netdev_mc_empty(net)) {
  689. /* just broadcast and directed */
  690. } else {
  691. /* We use the 20 byte dev->data
  692. * for our 8 byte filter buffer
  693. * to avoid allocating memory that
  694. * is tricky to free later */
  695. struct netdev_hw_addr *ha;
  696. u32 crc_bits;
  697. memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
  698. /* Build the multicast hash filter. */
  699. netdev_for_each_mc_addr(ha, net) {
  700. crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
  701. data->multi_filter[crc_bits >> 3] |=
  702. 1 << (crc_bits & 7);
  703. }
  704. asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
  705. AX_MCAST_FILTER_SIZE, data->multi_filter);
  706. rx_ctl |= 0x10;
  707. }
  708. asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
  709. }
  710. static int ax88172_link_reset(struct usbnet *dev)
  711. {
  712. u8 mode;
  713. struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
  714. mii_check_media(&dev->mii, 1, 1);
  715. mii_ethtool_gset(&dev->mii, &ecmd);
  716. mode = AX88172_MEDIUM_DEFAULT;
  717. if (ecmd.duplex != DUPLEX_FULL)
  718. mode |= ~AX88172_MEDIUM_FD;
  719. netdev_dbg(dev->net, "ax88172_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
  720. ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
  721. asix_write_medium_mode(dev, mode);
  722. return 0;
  723. }
  724. static const struct net_device_ops ax88172_netdev_ops = {
  725. .ndo_open = usbnet_open,
  726. .ndo_stop = usbnet_stop,
  727. .ndo_start_xmit = usbnet_start_xmit,
  728. .ndo_tx_timeout = usbnet_tx_timeout,
  729. .ndo_change_mtu = usbnet_change_mtu,
  730. .ndo_set_mac_address = eth_mac_addr,
  731. .ndo_validate_addr = eth_validate_addr,
  732. .ndo_do_ioctl = asix_ioctl,
  733. .ndo_set_multicast_list = ax88172_set_multicast,
  734. };
  735. static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
  736. {
  737. int ret = 0;
  738. u8 buf[ETH_ALEN];
  739. int i;
  740. unsigned long gpio_bits = dev->driver_info->data;
  741. struct asix_data *data = (struct asix_data *)&dev->data;
  742. data->eeprom_len = AX88172_EEPROM_LEN;
  743. usbnet_get_endpoints(dev,intf);
  744. /* Toggle the GPIOs in a manufacturer/model specific way */
  745. for (i = 2; i >= 0; i--) {
  746. if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
  747. (gpio_bits >> (i * 8)) & 0xff, 0, 0,
  748. NULL)) < 0)
  749. goto out;
  750. msleep(5);
  751. }
  752. if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0)
  753. goto out;
  754. /* Get the MAC address */
  755. if ((ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID,
  756. 0, 0, ETH_ALEN, buf)) < 0) {
  757. dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
  758. goto out;
  759. }
  760. memcpy(dev->net->dev_addr, buf, ETH_ALEN);
  761. /* Initialize MII structure */
  762. dev->mii.dev = dev->net;
  763. dev->mii.mdio_read = asix_mdio_read;
  764. dev->mii.mdio_write = asix_mdio_write;
  765. dev->mii.phy_id_mask = 0x3f;
  766. dev->mii.reg_num_mask = 0x1f;
  767. dev->mii.phy_id = asix_get_phy_addr(dev);
  768. dev->net->netdev_ops = &ax88172_netdev_ops;
  769. dev->net->ethtool_ops = &ax88172_ethtool_ops;
  770. asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
  771. asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
  772. ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
  773. mii_nway_restart(&dev->mii);
  774. return 0;
  775. out:
  776. return ret;
  777. }
  778. static const struct ethtool_ops ax88772_ethtool_ops = {
  779. .get_drvinfo = asix_get_drvinfo,
  780. .get_link = asix_get_link,
  781. .get_msglevel = usbnet_get_msglevel,
  782. .set_msglevel = usbnet_set_msglevel,
  783. .get_wol = asix_get_wol,
  784. .set_wol = asix_set_wol,
  785. .get_eeprom_len = asix_get_eeprom_len,
  786. .get_eeprom = asix_get_eeprom,
  787. .get_settings = usbnet_get_settings,
  788. .set_settings = usbnet_set_settings,
  789. .nway_reset = usbnet_nway_reset,
  790. };
  791. static int ax88772_link_reset(struct usbnet *dev)
  792. {
  793. u16 mode;
  794. struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
  795. mii_check_media(&dev->mii, 1, 1);
  796. mii_ethtool_gset(&dev->mii, &ecmd);
  797. mode = AX88772_MEDIUM_DEFAULT;
  798. if (ethtool_cmd_speed(&ecmd) != SPEED_100)
  799. mode &= ~AX_MEDIUM_PS;
  800. if (ecmd.duplex != DUPLEX_FULL)
  801. mode &= ~AX_MEDIUM_FD;
  802. netdev_dbg(dev->net, "ax88772_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
  803. ethtool_cmd_speed(&ecmd), ecmd.duplex, mode);
  804. asix_write_medium_mode(dev, mode);
  805. return 0;
  806. }
  807. static const struct net_device_ops ax88772_netdev_ops = {
  808. .ndo_open = usbnet_open,
  809. .ndo_stop = usbnet_stop,
  810. .ndo_start_xmit = usbnet_start_xmit,
  811. .ndo_tx_timeout = usbnet_tx_timeout,
  812. .ndo_change_mtu = usbnet_change_mtu,
  813. .ndo_set_mac_address = asix_set_mac_address,
  814. .ndo_validate_addr = eth_validate_addr,
  815. .ndo_do_ioctl = asix_ioctl,
  816. .ndo_set_multicast_list = asix_set_multicast,
  817. };
  818. static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
  819. {
  820. int ret, embd_phy;
  821. u16 rx_ctl;
  822. struct asix_data *data = (struct asix_data *)&dev->data;
  823. u8 buf[ETH_ALEN];
  824. u32 phyid;
  825. data->eeprom_len = AX88772_EEPROM_LEN;
  826. usbnet_get_endpoints(dev,intf);
  827. if ((ret = asix_write_gpio(dev,
  828. AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0)
  829. goto out;
  830. /* 0x10 is the phy id of the embedded 10/100 ethernet phy */
  831. embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
  832. if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
  833. embd_phy, 0, 0, NULL)) < 0) {
  834. dbg("Select PHY #1 failed: %d", ret);
  835. goto out;
  836. }
  837. if ((ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL)) < 0)
  838. goto out;
  839. msleep(150);
  840. if ((ret = asix_sw_reset(dev, AX_SWRESET_CLEAR)) < 0)
  841. goto out;
  842. msleep(150);
  843. if (embd_phy) {
  844. if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
  845. goto out;
  846. }
  847. else {
  848. if ((ret = asix_sw_reset(dev, AX_SWRESET_PRTE)) < 0)
  849. goto out;
  850. }
  851. msleep(150);
  852. rx_ctl = asix_read_rx_ctl(dev);
  853. dbg("RX_CTL is 0x%04x after software reset", rx_ctl);
  854. if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0)
  855. goto out;
  856. rx_ctl = asix_read_rx_ctl(dev);
  857. dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);
  858. /* Get the MAC address */
  859. if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
  860. 0, 0, ETH_ALEN, buf)) < 0) {
  861. dbg("Failed to read MAC address: %d", ret);
  862. goto out;
  863. }
  864. memcpy(dev->net->dev_addr, buf, ETH_ALEN);
  865. /* Initialize MII structure */
  866. dev->mii.dev = dev->net;
  867. dev->mii.mdio_read = asix_mdio_read;
  868. dev->mii.mdio_write = asix_mdio_write;
  869. dev->mii.phy_id_mask = 0x1f;
  870. dev->mii.reg_num_mask = 0x1f;
  871. dev->mii.phy_id = asix_get_phy_addr(dev);
  872. phyid = asix_get_phyid(dev);
  873. dbg("PHYID=0x%08x", phyid);
  874. if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
  875. goto out;
  876. msleep(150);
  877. if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL)) < 0)
  878. goto out;
  879. msleep(150);
  880. dev->net->netdev_ops = &ax88772_netdev_ops;
  881. dev->net->ethtool_ops = &ax88772_ethtool_ops;
  882. asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
  883. asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
  884. ADVERTISE_ALL | ADVERTISE_CSMA);
  885. mii_nway_restart(&dev->mii);
  886. if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0)
  887. goto out;
  888. if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
  889. AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
  890. AX88772_IPG2_DEFAULT, 0, NULL)) < 0) {
  891. dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
  892. goto out;
  893. }
  894. /* Set RX_CTL to default values with 2k buffer, and enable cactus */
  895. if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
  896. goto out;
  897. rx_ctl = asix_read_rx_ctl(dev);
  898. dbg("RX_CTL is 0x%04x after all initializations", rx_ctl);
  899. rx_ctl = asix_read_medium_status(dev);
  900. dbg("Medium Status is 0x%04x after all initializations", rx_ctl);
  901. /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
  902. if (dev->driver_info->flags & FLAG_FRAMING_AX) {
  903. /* hard_mtu is still the default - the device does not support
  904. jumbo eth frames */
  905. dev->rx_urb_size = 2048;
  906. }
  907. return 0;
  908. out:
  909. return ret;
  910. }
  911. static struct ethtool_ops ax88178_ethtool_ops = {
  912. .get_drvinfo = asix_get_drvinfo,
  913. .get_link = asix_get_link,
  914. .get_msglevel = usbnet_get_msglevel,
  915. .set_msglevel = usbnet_set_msglevel,
  916. .get_wol = asix_get_wol,
  917. .set_wol = asix_set_wol,
  918. .get_eeprom_len = asix_get_eeprom_len,
  919. .get_eeprom = asix_get_eeprom,
  920. .get_settings = usbnet_get_settings,
  921. .set_settings = usbnet_set_settings,
  922. .nway_reset = usbnet_nway_reset,
  923. };
  924. static int marvell_phy_init(struct usbnet *dev)
  925. {
  926. struct asix_data *data = (struct asix_data *)&dev->data;
  927. u16 reg;
  928. netdev_dbg(dev->net, "marvell_phy_init()\n");
  929. reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
  930. netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
  931. asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
  932. MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
  933. if (data->ledmode) {
  934. reg = asix_mdio_read(dev->net, dev->mii.phy_id,
  935. MII_MARVELL_LED_CTRL);
  936. netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
  937. reg &= 0xf8ff;
  938. reg |= (1 + 0x0100);
  939. asix_mdio_write(dev->net, dev->mii.phy_id,
  940. MII_MARVELL_LED_CTRL, reg);
  941. reg = asix_mdio_read(dev->net, dev->mii.phy_id,
  942. MII_MARVELL_LED_CTRL);
  943. netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
  944. reg &= 0xfc0f;
  945. }
  946. return 0;
  947. }
  948. static int marvell_led_status(struct usbnet *dev, u16 speed)
  949. {
  950. u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
  951. netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
  952. /* Clear out the center LED bits - 0x03F0 */
  953. reg &= 0xfc0f;
  954. switch (speed) {
  955. case SPEED_1000:
  956. reg |= 0x03e0;
  957. break;
  958. case SPEED_100:
  959. reg |= 0x03b0;
  960. break;
  961. default:
  962. reg |= 0x02f0;
  963. }
  964. netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
  965. asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
  966. return 0;
  967. }
  968. static int ax88178_link_reset(struct usbnet *dev)
  969. {
  970. u16 mode;
  971. struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
  972. struct asix_data *data = (struct asix_data *)&dev->data;
  973. u32 speed;
  974. netdev_dbg(dev->net, "ax88178_link_reset()\n");
  975. mii_check_media(&dev->mii, 1, 1);
  976. mii_ethtool_gset(&dev->mii, &ecmd);
  977. mode = AX88178_MEDIUM_DEFAULT;
  978. speed = ethtool_cmd_speed(&ecmd);
  979. if (speed == SPEED_1000)
  980. mode |= AX_MEDIUM_GM;
  981. else if (speed == SPEED_100)
  982. mode |= AX_MEDIUM_PS;
  983. else
  984. mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
  985. mode |= AX_MEDIUM_ENCK;
  986. if (ecmd.duplex == DUPLEX_FULL)
  987. mode |= AX_MEDIUM_FD;
  988. else
  989. mode &= ~AX_MEDIUM_FD;
  990. netdev_dbg(dev->net, "ax88178_link_reset() speed: %u duplex: %d setting mode to 0x%04x\n",
  991. speed, ecmd.duplex, mode);
  992. asix_write_medium_mode(dev, mode);
  993. if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
  994. marvell_led_status(dev, speed);
  995. return 0;
  996. }
  997. static void ax88178_set_mfb(struct usbnet *dev)
  998. {
  999. u16 mfb = AX_RX_CTL_MFB_16384;
  1000. u16 rxctl;
  1001. u16 medium;
  1002. int old_rx_urb_size = dev->rx_urb_size;
  1003. if (dev->hard_mtu < 2048) {
  1004. dev->rx_urb_size = 2048;
  1005. mfb = AX_RX_CTL_MFB_2048;
  1006. } else if (dev->hard_mtu < 4096) {
  1007. dev->rx_urb_size = 4096;
  1008. mfb = AX_RX_CTL_MFB_4096;
  1009. } else if (dev->hard_mtu < 8192) {
  1010. dev->rx_urb_size = 8192;
  1011. mfb = AX_RX_CTL_MFB_8192;
  1012. } else if (dev->hard_mtu < 16384) {
  1013. dev->rx_urb_size = 16384;
  1014. mfb = AX_RX_CTL_MFB_16384;
  1015. }
  1016. rxctl = asix_read_rx_ctl(dev);
  1017. asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb);
  1018. medium = asix_read_medium_status(dev);
  1019. if (dev->net->mtu > 1500)
  1020. medium |= AX_MEDIUM_JFE;
  1021. else
  1022. medium &= ~AX_MEDIUM_JFE;
  1023. asix_write_medium_mode(dev, medium);
  1024. if (dev->rx_urb_size > old_rx_urb_size)
  1025. usbnet_unlink_rx_urbs(dev);
  1026. }
  1027. static int ax88178_change_mtu(struct net_device *net, int new_mtu)
  1028. {
  1029. struct usbnet *dev = netdev_priv(net);
  1030. int ll_mtu = new_mtu + net->hard_header_len + 4;
  1031. netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
  1032. if (new_mtu <= 0 || ll_mtu > 16384)
  1033. return -EINVAL;
  1034. if ((ll_mtu % dev->maxpacket) == 0)
  1035. return -EDOM;
  1036. net->mtu = new_mtu;
  1037. dev->hard_mtu = net->mtu + net->hard_header_len;
  1038. ax88178_set_mfb(dev);
  1039. return 0;
  1040. }
  1041. static const struct net_device_ops ax88178_netdev_ops = {
  1042. .ndo_open = usbnet_open,
  1043. .ndo_stop = usbnet_stop,
  1044. .ndo_start_xmit = usbnet_start_xmit,
  1045. .ndo_tx_timeout = usbnet_tx_timeout,
  1046. .ndo_set_mac_address = asix_set_mac_address,
  1047. .ndo_validate_addr = eth_validate_addr,
  1048. .ndo_set_multicast_list = asix_set_multicast,
  1049. .ndo_do_ioctl = asix_ioctl,
  1050. .ndo_change_mtu = ax88178_change_mtu,
  1051. };
  1052. static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
  1053. {
  1054. struct asix_data *data = (struct asix_data *)&dev->data;
  1055. int ret;
  1056. u8 buf[ETH_ALEN];
  1057. __le16 eeprom;
  1058. u8 status;
  1059. int gpio0 = 0;
  1060. u32 phyid;
  1061. usbnet_get_endpoints(dev,intf);
  1062. asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
  1063. dbg("GPIO Status: 0x%04x", status);
  1064. asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
  1065. asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
  1066. asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
  1067. dbg("EEPROM index 0x17 is 0x%04x", eeprom);
  1068. if (eeprom == cpu_to_le16(0xffff)) {
  1069. data->phymode = PHY_MODE_MARVELL;
  1070. data->ledmode = 0;
  1071. gpio0 = 1;
  1072. } else {
  1073. data->phymode = le16_to_cpu(eeprom) & 7;
  1074. data->ledmode = le16_to_cpu(eeprom) >> 8;
  1075. gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
  1076. }
  1077. dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode);
  1078. asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
  1079. if ((le16_to_cpu(eeprom) >> 8) != 1) {
  1080. asix_write_gpio(dev, 0x003c, 30);
  1081. asix_write_gpio(dev, 0x001c, 300);
  1082. asix_write_gpio(dev, 0x003c, 30);
  1083. } else {
  1084. dbg("gpio phymode == 1 path");
  1085. asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
  1086. asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
  1087. }
  1088. asix_sw_reset(dev, 0);
  1089. msleep(150);
  1090. asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
  1091. msleep(150);
  1092. asix_write_rx_ctl(dev, 0);
  1093. /* Get the MAC address */
  1094. if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
  1095. 0, 0, ETH_ALEN, buf)) < 0) {
  1096. dbg("Failed to read MAC address: %d", ret);
  1097. goto out;
  1098. }
  1099. memcpy(dev->net->dev_addr, buf, ETH_ALEN);
  1100. /* Initialize MII structure */
  1101. dev->mii.dev = dev->net;
  1102. dev->mii.mdio_read = asix_mdio_read;
  1103. dev->mii.mdio_write = asix_mdio_write;
  1104. dev->mii.phy_id_mask = 0x1f;
  1105. dev->mii.reg_num_mask = 0xff;
  1106. dev->mii.supports_gmii = 1;
  1107. dev->mii.phy_id = asix_get_phy_addr(dev);
  1108. dev->net->netdev_ops = &ax88178_netdev_ops;
  1109. dev->net->ethtool_ops = &ax88178_ethtool_ops;
  1110. phyid = asix_get_phyid(dev);
  1111. dbg("PHYID=0x%08x", phyid);
  1112. if (data->phymode == PHY_MODE_MARVELL) {
  1113. marvell_phy_init(dev);
  1114. msleep(60);
  1115. }
  1116. asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
  1117. BMCR_RESET | BMCR_ANENABLE);
  1118. asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
  1119. ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
  1120. asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
  1121. ADVERTISE_1000FULL);
  1122. mii_nway_restart(&dev->mii);
  1123. if ((ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT)) < 0)
  1124. goto out;
  1125. if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
  1126. goto out;
  1127. /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
  1128. if (dev->driver_info->flags & FLAG_FRAMING_AX) {
  1129. /* hard_mtu is still the default - the device does not support
  1130. jumbo eth frames */
  1131. dev->rx_urb_size = 2048;
  1132. }
  1133. return 0;
  1134. out:
  1135. return ret;
  1136. }
  1137. static const struct driver_info ax8817x_info = {
  1138. .description = "ASIX AX8817x USB 2.0 Ethernet",
  1139. .bind = ax88172_bind,
  1140. .status = asix_status,
  1141. .link_reset = ax88172_link_reset,
  1142. .reset = ax88172_link_reset,
  1143. .flags = FLAG_ETHER | FLAG_LINK_INTR,
  1144. .data = 0x00130103,
  1145. };
  1146. static const struct driver_info dlink_dub_e100_info = {
  1147. .description = "DLink DUB-E100 USB Ethernet",
  1148. .bind = ax88172_bind,
  1149. .status = asix_status,
  1150. .link_reset = ax88172_link_reset,
  1151. .reset = ax88172_link_reset,
  1152. .flags = FLAG_ETHER | FLAG_LINK_INTR,
  1153. .data = 0x009f9d9f,
  1154. };
  1155. static const struct driver_info netgear_fa120_info = {
  1156. .description = "Netgear FA-120 USB Ethernet",
  1157. .bind = ax88172_bind,
  1158. .status = asix_status,
  1159. .link_reset = ax88172_link_reset,
  1160. .reset = ax88172_link_reset,
  1161. .flags = FLAG_ETHER | FLAG_LINK_INTR,
  1162. .data = 0x00130103,
  1163. };
  1164. static const struct driver_info hawking_uf200_info = {
  1165. .description = "Hawking UF200 USB Ethernet",
  1166. .bind = ax88172_bind,
  1167. .status = asix_status,
  1168. .link_reset = ax88172_link_reset,
  1169. .reset = ax88172_link_reset,
  1170. .flags = FLAG_ETHER | FLAG_LINK_INTR,
  1171. .data = 0x001f1d1f,
  1172. };
  1173. static const struct driver_info ax88772_info = {
  1174. .description = "ASIX AX88772 USB 2.0 Ethernet",
  1175. .bind = ax88772_bind,
  1176. .status = asix_status,
  1177. .link_reset = ax88772_link_reset,
  1178. .reset = ax88772_link_reset,
  1179. .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR,
  1180. .rx_fixup = asix_rx_fixup,
  1181. .tx_fixup = asix_tx_fixup,
  1182. };
  1183. static const struct driver_info ax88178_info = {
  1184. .description = "ASIX AX88178 USB 2.0 Ethernet",
  1185. .bind = ax88178_bind,
  1186. .status = asix_status,
  1187. .link_reset = ax88178_link_reset,
  1188. .reset = ax88178_link_reset,
  1189. .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR,
  1190. .rx_fixup = asix_rx_fixup,
  1191. .tx_fixup = asix_tx_fixup,
  1192. };
  1193. static const struct usb_device_id products [] = {
  1194. {
  1195. // Linksys USB200M
  1196. USB_DEVICE (0x077b, 0x2226),
  1197. .driver_info = (unsigned long) &ax8817x_info,
  1198. }, {
  1199. // Netgear FA120
  1200. USB_DEVICE (0x0846, 0x1040),
  1201. .driver_info = (unsigned long) &netgear_fa120_info,
  1202. }, {
  1203. // DLink DUB-E100
  1204. USB_DEVICE (0x2001, 0x1a00),
  1205. .driver_info = (unsigned long) &dlink_dub_e100_info,
  1206. }, {
  1207. // Intellinet, ST Lab USB Ethernet
  1208. USB_DEVICE (0x0b95, 0x1720),
  1209. .driver_info = (unsigned long) &ax8817x_info,
  1210. }, {
  1211. // Hawking UF200, TrendNet TU2-ET100
  1212. USB_DEVICE (0x07b8, 0x420a),
  1213. .driver_info = (unsigned long) &hawking_uf200_info,
  1214. }, {
  1215. // Billionton Systems, USB2AR
  1216. USB_DEVICE (0x08dd, 0x90ff),
  1217. .driver_info = (unsigned long) &ax8817x_info,
  1218. }, {
  1219. // ATEN UC210T
  1220. USB_DEVICE (0x0557, 0x2009),
  1221. .driver_info = (unsigned long) &ax8817x_info,
  1222. }, {
  1223. // Buffalo LUA-U2-KTX
  1224. USB_DEVICE (0x0411, 0x003d),
  1225. .driver_info = (unsigned long) &ax8817x_info,
  1226. }, {
  1227. // Buffalo LUA-U2-GT 10/100/1000
  1228. USB_DEVICE (0x0411, 0x006e),
  1229. .driver_info = (unsigned long) &ax88178_info,
  1230. }, {
  1231. // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
  1232. USB_DEVICE (0x6189, 0x182d),
  1233. .driver_info = (unsigned long) &ax8817x_info,
  1234. }, {
  1235. // Sitecom LN-031 "USB 2.0 10/100/1000 Ethernet adapter"
  1236. USB_DEVICE (0x0df6, 0x0056),
  1237. .driver_info = (unsigned long) &ax88178_info,
  1238. }, {
  1239. // corega FEther USB2-TX
  1240. USB_DEVICE (0x07aa, 0x0017),
  1241. .driver_info = (unsigned long) &ax8817x_info,
  1242. }, {
  1243. // Surecom EP-1427X-2
  1244. USB_DEVICE (0x1189, 0x0893),
  1245. .driver_info = (unsigned long) &ax8817x_info,
  1246. }, {
  1247. // goodway corp usb gwusb2e
  1248. USB_DEVICE (0x1631, 0x6200),
  1249. .driver_info = (unsigned long) &ax8817x_info,
  1250. }, {
  1251. // JVC MP-PRX1 Port Replicator
  1252. USB_DEVICE (0x04f1, 0x3008),
  1253. .driver_info = (unsigned long) &ax8817x_info,
  1254. }, {
  1255. // ASIX AX88772B 10/100
  1256. USB_DEVICE (0x0b95, 0x772b),
  1257. .driver_info = (unsigned long) &ax88772_info,
  1258. }, {
  1259. // ASIX AX88772 10/100
  1260. USB_DEVICE (0x0b95, 0x7720),
  1261. .driver_info = (unsigned long) &ax88772_info,
  1262. }, {
  1263. // ASIX AX88178 10/100/1000
  1264. USB_DEVICE (0x0b95, 0x1780),
  1265. .driver_info = (unsigned long) &ax88178_info,
  1266. }, {
  1267. // Logitec LAN-GTJ/U2A
  1268. USB_DEVICE (0x0789, 0x0160),
  1269. .driver_info = (unsigned long) &ax88178_info,
  1270. }, {
  1271. // Linksys USB200M Rev 2
  1272. USB_DEVICE (0x13b1, 0x0018),
  1273. .driver_info = (unsigned long) &ax88772_info,
  1274. }, {
  1275. // 0Q0 cable ethernet
  1276. USB_DEVICE (0x1557, 0x7720),
  1277. .driver_info = (unsigned long) &ax88772_info,
  1278. }, {
  1279. // DLink DUB-E100 H/W Ver B1
  1280. USB_DEVICE (0x07d1, 0x3c05),
  1281. .driver_info = (unsigned long) &ax88772_info,
  1282. }, {
  1283. // DLink DUB-E100 H/W Ver B1 Alternate
  1284. USB_DEVICE (0x2001, 0x3c05),
  1285. .driver_info = (unsigned long) &ax88772_info,
  1286. }, {
  1287. // Linksys USB1000
  1288. USB_DEVICE (0x1737, 0x0039),
  1289. .driver_info = (unsigned long) &ax88178_info,
  1290. }, {
  1291. // IO-DATA ETG-US2
  1292. USB_DEVICE (0x04bb, 0x0930),
  1293. .driver_info = (unsigned long) &ax88178_info,
  1294. }, {
  1295. // Belkin F5D5055
  1296. USB_DEVICE(0x050d, 0x5055),
  1297. .driver_info = (unsigned long) &ax88178_info,
  1298. }, {
  1299. // Apple USB Ethernet Adapter
  1300. USB_DEVICE(0x05ac, 0x1402),
  1301. .driver_info = (unsigned long) &ax88772_info,
  1302. }, {
  1303. // Cables-to-Go USB Ethernet Adapter
  1304. USB_DEVICE(0x0b95, 0x772a),
  1305. .driver_info = (unsigned long) &ax88772_info,
  1306. }, {
  1307. // ABOCOM for pci
  1308. USB_DEVICE(0x14ea, 0xab11),
  1309. .driver_info = (unsigned long) &ax88178_info,
  1310. }, {
  1311. // ASIX 88772a
  1312. USB_DEVICE(0x0db0, 0xa877),
  1313. .driver_info = (unsigned long) &ax88772_info,
  1314. }, {
  1315. // Asus USB Ethernet Adapter
  1316. USB_DEVICE (0x0b95, 0x7e2b),
  1317. .driver_info = (unsigned long) &ax88772_info,
  1318. },
  1319. { }, // END
  1320. };
  1321. MODULE_DEVICE_TABLE(usb, products);
  1322. static struct usb_driver asix_driver = {
  1323. .name = "asix",
  1324. .id_table = products,
  1325. .probe = usbnet_probe,
  1326. .suspend = usbnet_suspend,
  1327. .resume = usbnet_resume,
  1328. .disconnect = usbnet_disconnect,
  1329. .supports_autosuspend = 1,
  1330. };
  1331. static int __init asix_init(void)
  1332. {
  1333. return usb_register(&asix_driver);
  1334. }
  1335. module_init(asix_init);
  1336. static void __exit asix_exit(void)
  1337. {
  1338. usb_deregister(&asix_driver);
  1339. }
  1340. module_exit(asix_exit);
  1341. MODULE_AUTHOR("David Hollis");
  1342. MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
  1343. MODULE_LICENSE("GPL");