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drivers/net/usb/asix.c: Fix pointer cast.
[linux/fpc-iii.git] / drivers / net / usb / asix.c
blob1f802e90474c3ccd342a70fb8b7352cadedf6bcd
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
23 // #define DEBUG // error path messages, extra info
24 // #define VERBOSE // more; success messages
25
26 #include <linux/module.h>
27 #include <linux/kmod.h>
28 #include <linux/init.h>
29 #include <linux/netdevice.h>
30 #include <linux/etherdevice.h>
31 #include <linux/ethtool.h>
32 #include <linux/workqueue.h>
33 #include <linux/mii.h>
34 #include <linux/usb.h>
35 #include <linux/crc32.h>
36 #include <linux/usb/usbnet.h>
37 #include <linux/slab.h>
38
39 #define DRIVER_VERSION "14-Jun-2006"
40 static const char driver_name [] = "asix";
41
42 /* ASIX AX8817X based USB 2.0 Ethernet Devices */
43
44 #define AX_CMD_SET_SW_MII 0x06
45 #define AX_CMD_READ_MII_REG 0x07
46 #define AX_CMD_WRITE_MII_REG 0x08
47 #define AX_CMD_SET_HW_MII 0x0a
48 #define AX_CMD_READ_EEPROM 0x0b
49 #define AX_CMD_WRITE_EEPROM 0x0c
50 #define AX_CMD_WRITE_ENABLE 0x0d
51 #define AX_CMD_WRITE_DISABLE 0x0e
52 #define AX_CMD_READ_RX_CTL 0x0f
53 #define AX_CMD_WRITE_RX_CTL 0x10
54 #define AX_CMD_READ_IPG012 0x11
55 #define AX_CMD_WRITE_IPG0 0x12
56 #define AX_CMD_WRITE_IPG1 0x13
57 #define AX_CMD_READ_NODE_ID 0x13
58 #define AX_CMD_WRITE_NODE_ID 0x14
59 #define AX_CMD_WRITE_IPG2 0x14
60 #define AX_CMD_WRITE_MULTI_FILTER 0x16
61 #define AX88172_CMD_READ_NODE_ID 0x17
62 #define AX_CMD_READ_PHY_ID 0x19
63 #define AX_CMD_READ_MEDIUM_STATUS 0x1a
64 #define AX_CMD_WRITE_MEDIUM_MODE 0x1b
65 #define AX_CMD_READ_MONITOR_MODE 0x1c
66 #define AX_CMD_WRITE_MONITOR_MODE 0x1d
67 #define AX_CMD_READ_GPIOS 0x1e
68 #define AX_CMD_WRITE_GPIOS 0x1f
69 #define AX_CMD_SW_RESET 0x20
70 #define AX_CMD_SW_PHY_STATUS 0x21
71 #define AX_CMD_SW_PHY_SELECT 0x22
72
73 #define AX_MONITOR_MODE 0x01
74 #define AX_MONITOR_LINK 0x02
75 #define AX_MONITOR_MAGIC 0x04
76 #define AX_MONITOR_HSFS 0x10
77
78 /* AX88172 Medium Status Register values */
79 #define AX88172_MEDIUM_FD 0x02
80 #define AX88172_MEDIUM_TX 0x04
81 #define AX88172_MEDIUM_FC 0x10
82 #define AX88172_MEDIUM_DEFAULT \
83 ( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC )
84
85 #define AX_MCAST_FILTER_SIZE 8
86 #define AX_MAX_MCAST 64
87
88 #define AX_SWRESET_CLEAR 0x00
89 #define AX_SWRESET_RR 0x01
90 #define AX_SWRESET_RT 0x02
91 #define AX_SWRESET_PRTE 0x04
92 #define AX_SWRESET_PRL 0x08
93 #define AX_SWRESET_BZ 0x10
94 #define AX_SWRESET_IPRL 0x20
95 #define AX_SWRESET_IPPD 0x40
96
97 #define AX88772_IPG0_DEFAULT 0x15
98 #define AX88772_IPG1_DEFAULT 0x0c
99 #define AX88772_IPG2_DEFAULT 0x12
100
101 /* AX88772 & AX88178 Medium Mode Register */
102 #define AX_MEDIUM_PF 0x0080
103 #define AX_MEDIUM_JFE 0x0040
104 #define AX_MEDIUM_TFC 0x0020
105 #define AX_MEDIUM_RFC 0x0010
106 #define AX_MEDIUM_ENCK 0x0008
107 #define AX_MEDIUM_AC 0x0004
108 #define AX_MEDIUM_FD 0x0002
109 #define AX_MEDIUM_GM 0x0001
110 #define AX_MEDIUM_SM 0x1000
111 #define AX_MEDIUM_SBP 0x0800
112 #define AX_MEDIUM_PS 0x0200
113 #define AX_MEDIUM_RE 0x0100
114
115 #define AX88178_MEDIUM_DEFAULT \
116 (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \
117 AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \
118 AX_MEDIUM_RE )
119
120 #define AX88772_MEDIUM_DEFAULT \
121 (AX_MEDIUM_FD | AX_MEDIUM_RFC | \
122 AX_MEDIUM_TFC | AX_MEDIUM_PS | \
123 AX_MEDIUM_AC | AX_MEDIUM_RE )
124
125 /* AX88772 & AX88178 RX_CTL values */
126 #define AX_RX_CTL_SO 0x0080
127 #define AX_RX_CTL_AP 0x0020
128 #define AX_RX_CTL_AM 0x0010
129 #define AX_RX_CTL_AB 0x0008
130 #define AX_RX_CTL_SEP 0x0004
131 #define AX_RX_CTL_AMALL 0x0002
132 #define AX_RX_CTL_PRO 0x0001
133 #define AX_RX_CTL_MFB_2048 0x0000
134 #define AX_RX_CTL_MFB_4096 0x0100
135 #define AX_RX_CTL_MFB_8192 0x0200
136 #define AX_RX_CTL_MFB_16384 0x0300
137
138 #define AX_DEFAULT_RX_CTL \
139 (AX_RX_CTL_SO | AX_RX_CTL_AB )
140
141 /* GPIO 0 .. 2 toggles */
142 #define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */
143 #define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */
144 #define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */
145 #define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */
146 #define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */
147 #define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */
148 #define AX_GPIO_RESERVED 0x40 /* Reserved */
149 #define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */
150
151 #define AX_EEPROM_MAGIC 0xdeadbeef
152 #define AX88172_EEPROM_LEN 0x40
153 #define AX88772_EEPROM_LEN 0xff
154
155 #define PHY_MODE_MARVELL 0x0000
156 #define MII_MARVELL_LED_CTRL 0x0018
157 #define MII_MARVELL_STATUS 0x001b
158 #define MII_MARVELL_CTRL 0x0014
159
160 #define MARVELL_LED_MANUAL 0x0019
161
162 #define MARVELL_STATUS_HWCFG 0x0004
163
164 #define MARVELL_CTRL_TXDELAY 0x0002
165 #define MARVELL_CTRL_RXDELAY 0x0080
166
167 /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
168 struct asix_data {
169 u8 multi_filter[AX_MCAST_FILTER_SIZE];
170 u8 mac_addr[ETH_ALEN];
171 u8 phymode;
172 u8 ledmode;
173 u8 eeprom_len;
174 };
175
176 struct ax88172_int_data {
177 __le16 res1;
178 u8 link;
179 __le16 res2;
180 u8 status;
181 __le16 res3;
182 } __attribute__ ((packed));
183
184 static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
185 u16 size, void *data)
186 {
187 void *buf;
188 int err = -ENOMEM;
189
190 netdev_dbg(dev->net, "asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
191 cmd, value, index, size);
192
193 buf = kmalloc(size, GFP_KERNEL);
194 if (!buf)
195 goto out;
196
197 err = usb_control_msg(
198 dev->udev,
199 usb_rcvctrlpipe(dev->udev, 0),
200 cmd,
201 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
202 value,
203 index,
204 buf,
205 size,
206 USB_CTRL_GET_TIMEOUT);
207 if (err == size)
208 memcpy(data, buf, size);
209 else if (err >= 0)
210 err = -EINVAL;
211 kfree(buf);
212
213 out:
214 return err;
215 }
216
217 static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
218 u16 size, void *data)
219 {
220 void *buf = NULL;
221 int err = -ENOMEM;
222
223 netdev_dbg(dev->net, "asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
224 cmd, value, index, size);
225
226 if (data) {
227 buf = kmemdup(data, size, GFP_KERNEL);
228 if (!buf)
229 goto out;
230 }
231
232 err = usb_control_msg(
233 dev->udev,
234 usb_sndctrlpipe(dev->udev, 0),
235 cmd,
236 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
237 value,
238 index,
239 buf,
240 size,
241 USB_CTRL_SET_TIMEOUT);
242 kfree(buf);
243
244 out:
245 return err;
246 }
247
248 static void asix_async_cmd_callback(struct urb *urb)
249 {
250 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
251 int status = urb->status;
252
253 if (status < 0)
254 printk(KERN_DEBUG "asix_async_cmd_callback() failed with %d",
255 status);
256
257 kfree(req);
258 usb_free_urb(urb);
259 }
260
261 static void
262 asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
263 u16 size, void *data)
264 {
265 struct usb_ctrlrequest *req;
266 int status;
267 struct urb *urb;
268
269 netdev_dbg(dev->net, "asix_write_cmd_async() cmd=0x%02x value=0x%04x index=0x%04x size=%d\n",
270 cmd, value, index, size);
271 if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
272 netdev_err(dev->net, "Error allocating URB in write_cmd_async!\n");
273 return;
274 }
275
276 if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
277 netdev_err(dev->net, "Failed to allocate memory for control request\n");
278 usb_free_urb(urb);
279 return;
280 }
281
282 req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
283 req->bRequest = cmd;
284 req->wValue = cpu_to_le16(value);
285 req->wIndex = cpu_to_le16(index);
286 req->wLength = cpu_to_le16(size);
287
288 usb_fill_control_urb(urb, dev->udev,
289 usb_sndctrlpipe(dev->udev, 0),
290 (void *)req, data, size,
291 asix_async_cmd_callback, req);
292
293 if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
294 netdev_err(dev->net, "Error submitting the control message: status=%d\n",
295 status);
296 kfree(req);
297 usb_free_urb(urb);
298 }
299 }
300
301 static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
302 {
303 u8 *head;
304 u32 header;
305 char *packet;
306 struct sk_buff *ax_skb;
307 u16 size;
308
309 head = (u8 *) skb->data;
310 memcpy(&header, head, sizeof(header));
311 le32_to_cpus(&header);
312 packet = head + sizeof(header);
313
314 skb_pull(skb, 4);
315
316 while (skb->len > 0) {
317 if ((short)(header & 0x0000ffff) !=
318 ~((short)((header & 0xffff0000) >> 16))) {
319 netdev_err(dev->net, "asix_rx_fixup() Bad Header Length\n");
320 }
321 /* get the packet length */
322 size = (u16) (header & 0x0000ffff);
323
324 if ((skb->len) - ((size + 1) & 0xfffe) == 0) {
325 u8 alignment = (unsigned long)skb->data & 0x3;
326 if (alignment != 0x2) {
327 /*
328 * not 16bit aligned so use the room provided by
329 * the 32 bit header to align the data
330 *
331 * note we want 16bit alignment as MAC header is
332 * 14bytes thus ip header will be aligned on
333 * 32bit boundary so accessing ipheader elements
334 * using a cast to struct ip header wont cause
335 * an unaligned accesses.
336 */
337 u8 realignment = (alignment + 2) & 0x3;
338 memmove(skb->data - realignment,
339 skb->data,
340 size);
341 skb->data -= realignment;
342 skb_set_tail_pointer(skb, size);
343 }
344 return 2;
345 }
346
347 if (size > ETH_FRAME_LEN) {
348 netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n",
349 size);
350 return 0;
351 }
352 ax_skb = skb_clone(skb, GFP_ATOMIC);
353 if (ax_skb) {
354 u8 alignment = (unsigned long)packet & 0x3;
355 ax_skb->len = size;
356
357 if (alignment != 0x2) {
358 /*
359 * not 16bit aligned use the room provided by
360 * the 32 bit header to align the data
361 */
362 u8 realignment = (alignment + 2) & 0x3;
363 memmove(packet - realignment, packet, size);
364 packet -= realignment;
365 }
366 ax_skb->data = packet;
367 skb_set_tail_pointer(ax_skb, size);
368 usbnet_skb_return(dev, ax_skb);
369 } else {
370 return 0;
371 }
372
373 skb_pull(skb, (size + 1) & 0xfffe);
374
375 if (skb->len == 0)
376 break;
377
378 head = (u8 *) skb->data;
379 memcpy(&header, head, sizeof(header));
380 le32_to_cpus(&header);
381 packet = head + sizeof(header);
382 skb_pull(skb, 4);
383 }
384
385 if (skb->len < 0) {
386 netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d\n",
387 skb->len);
388 return 0;
389 }
390 return 1;
391 }
392
393 static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
394 gfp_t flags)
395 {
396 int padlen;
397 int headroom = skb_headroom(skb);
398 int tailroom = skb_tailroom(skb);
399 u32 packet_len;
400 u32 padbytes = 0xffff0000;
401
402 padlen = ((skb->len + 4) % 512) ? 0 : 4;
403
404 if ((!skb_cloned(skb)) &&
405 ((headroom + tailroom) >= (4 + padlen))) {
406 if ((headroom < 4) || (tailroom < padlen)) {
407 skb->data = memmove(skb->head + 4, skb->data, skb->len);
408 skb_set_tail_pointer(skb, skb->len);
409 }
410 } else {
411 struct sk_buff *skb2;
412 skb2 = skb_copy_expand(skb, 4, padlen, flags);
413 dev_kfree_skb_any(skb);
414 skb = skb2;
415 if (!skb)
416 return NULL;
417 }
418
419 skb_push(skb, 4);
420 packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
421 cpu_to_le32s(&packet_len);
422 skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len));
423
424 if ((skb->len % 512) == 0) {
425 cpu_to_le32s(&padbytes);
426 memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
427 skb_put(skb, sizeof(padbytes));
428 }
429 return skb;
430 }
431
432 static void asix_status(struct usbnet *dev, struct urb *urb)
433 {
434 struct ax88172_int_data *event;
435 int link;
436
437 if (urb->actual_length < 8)
438 return;
439
440 event = urb->transfer_buffer;
441 link = event->link & 0x01;
442 if (netif_carrier_ok(dev->net) != link) {
443 if (link) {
444 netif_carrier_on(dev->net);
445 usbnet_defer_kevent (dev, EVENT_LINK_RESET );
446 } else
447 netif_carrier_off(dev->net);
448 netdev_dbg(dev->net, "Link Status is: %d\n", link);
449 }
450 }
451
452 static inline int asix_set_sw_mii(struct usbnet *dev)
453 {
454 int ret;
455 ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL);
456 if (ret < 0)
457 netdev_err(dev->net, "Failed to enable software MII access\n");
458 return ret;
459 }
460
461 static inline int asix_set_hw_mii(struct usbnet *dev)
462 {
463 int ret;
464 ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL);
465 if (ret < 0)
466 netdev_err(dev->net, "Failed to enable hardware MII access\n");
467 return ret;
468 }
469
470 static inline int asix_get_phy_addr(struct usbnet *dev)
471 {
472 u8 buf[2];
473 int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);
474
475 netdev_dbg(dev->net, "asix_get_phy_addr()\n");
476
477 if (ret < 0) {
478 netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret);
479 goto out;
480 }
481 netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n",
482 *((__le16 *)buf));
483 ret = buf[1];
484
485 out:
486 return ret;
487 }
488
489 static int asix_sw_reset(struct usbnet *dev, u8 flags)
490 {
491 int ret;
492
493 ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL);
494 if (ret < 0)
495 netdev_err(dev->net, "Failed to send software reset: %02x\n", ret);
496
497 return ret;
498 }
499
500 static u16 asix_read_rx_ctl(struct usbnet *dev)
501 {
502 __le16 v;
503 int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);
504
505 if (ret < 0) {
506 netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret);
507 goto out;
508 }
509 ret = le16_to_cpu(v);
510 out:
511 return ret;
512 }
513
514 static int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
515 {
516 int ret;
517
518 netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode);
519 ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL);
520 if (ret < 0)
521 netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n",
522 mode, ret);
523
524 return ret;
525 }
526
527 static u16 asix_read_medium_status(struct usbnet *dev)
528 {
529 __le16 v;
530 int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);
531
532 if (ret < 0) {
533 netdev_err(dev->net, "Error reading Medium Status register: %02x\n",
534 ret);
535 goto out;
536 }
537 ret = le16_to_cpu(v);
538 out:
539 return ret;
540 }
541
542 static int asix_write_medium_mode(struct usbnet *dev, u16 mode)
543 {
544 int ret;
545
546 netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode);
547 ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
548 if (ret < 0)
549 netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n",
550 mode, ret);
551
552 return ret;
553 }
554
555 static int asix_write_gpio(struct usbnet *dev, u16 value, int sleep)
556 {
557 int ret;
558
559 netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value);
560 ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL);
561 if (ret < 0)
562 netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n",
563 value, ret);
564
565 if (sleep)
566 msleep(sleep);
567
568 return ret;
569 }
570
571 /*
572 * AX88772 & AX88178 have a 16-bit RX_CTL value
573 */
574 static void asix_set_multicast(struct net_device *net)
575 {
576 struct usbnet *dev = netdev_priv(net);
577 struct asix_data *data = (struct asix_data *)&dev->data;
578 u16 rx_ctl = AX_DEFAULT_RX_CTL;
579
580 if (net->flags & IFF_PROMISC) {
581 rx_ctl |= AX_RX_CTL_PRO;
582 } else if (net->flags & IFF_ALLMULTI ||
583 netdev_mc_count(net) > AX_MAX_MCAST) {
584 rx_ctl |= AX_RX_CTL_AMALL;
585 } else if (netdev_mc_empty(net)) {
586 /* just broadcast and directed */
587 } else {
588 /* We use the 20 byte dev->data
589 * for our 8 byte filter buffer
590 * to avoid allocating memory that
591 * is tricky to free later */
592 struct netdev_hw_addr *ha;
593 u32 crc_bits;
594
595 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
596
597 /* Build the multicast hash filter. */
598 netdev_for_each_mc_addr(ha, net) {
599 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
600 data->multi_filter[crc_bits >> 3] |=
601 1 << (crc_bits & 7);
602 }
603
604 asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
605 AX_MCAST_FILTER_SIZE, data->multi_filter);
606
607 rx_ctl |= AX_RX_CTL_AM;
608 }
609
610 asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
611 }
612
613 static int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
614 {
615 struct usbnet *dev = netdev_priv(netdev);
616 __le16 res;
617
618 mutex_lock(&dev->phy_mutex);
619 asix_set_sw_mii(dev);
620 asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
621 (__u16)loc, 2, &res);
622 asix_set_hw_mii(dev);
623 mutex_unlock(&dev->phy_mutex);
624
625 netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
626 phy_id, loc, le16_to_cpu(res));
627
628 return le16_to_cpu(res);
629 }
630
631 static void
632 asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
633 {
634 struct usbnet *dev = netdev_priv(netdev);
635 __le16 res = cpu_to_le16(val);
636
637 netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
638 phy_id, loc, val);
639 mutex_lock(&dev->phy_mutex);
640 asix_set_sw_mii(dev);
641 asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
642 asix_set_hw_mii(dev);
643 mutex_unlock(&dev->phy_mutex);
644 }
645
646 /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */
647 static u32 asix_get_phyid(struct usbnet *dev)
648 {
649 int phy_reg;
650 u32 phy_id;
651
652 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1);
653 if (phy_reg < 0)
654 return 0;
655
656 phy_id = (phy_reg & 0xffff) << 16;
657
658 phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2);
659 if (phy_reg < 0)
660 return 0;
661
662 phy_id |= (phy_reg & 0xffff);
663
664 return phy_id;
665 }
666
667 static void
668 asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
669 {
670 struct usbnet *dev = netdev_priv(net);
671 u8 opt;
672
673 if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
674 wolinfo->supported = 0;
675 wolinfo->wolopts = 0;
676 return;
677 }
678 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
679 wolinfo->wolopts = 0;
680 if (opt & AX_MONITOR_MODE) {
681 if (opt & AX_MONITOR_LINK)
682 wolinfo->wolopts |= WAKE_PHY;
683 if (opt & AX_MONITOR_MAGIC)
684 wolinfo->wolopts |= WAKE_MAGIC;
685 }
686 }
687
688 static int
689 asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
690 {
691 struct usbnet *dev = netdev_priv(net);
692 u8 opt = 0;
693
694 if (wolinfo->wolopts & WAKE_PHY)
695 opt |= AX_MONITOR_LINK;
696 if (wolinfo->wolopts & WAKE_MAGIC)
697 opt |= AX_MONITOR_MAGIC;
698 if (opt != 0)
699 opt |= AX_MONITOR_MODE;
700
701 if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
702 opt, 0, 0, NULL) < 0)
703 return -EINVAL;
704
705 return 0;
706 }
707
708 static int asix_get_eeprom_len(struct net_device *net)
709 {
710 struct usbnet *dev = netdev_priv(net);
711 struct asix_data *data = (struct asix_data *)&dev->data;
712
713 return data->eeprom_len;
714 }
715
716 static int asix_get_eeprom(struct net_device *net,
717 struct ethtool_eeprom *eeprom, u8 *data)
718 {
719 struct usbnet *dev = netdev_priv(net);
720 __le16 *ebuf = (__le16 *)data;
721 int i;
722
723 /* Crude hack to ensure that we don't overwrite memory
724 * if an odd length is supplied
725 */
726 if (eeprom->len % 2)
727 return -EINVAL;
728
729 eeprom->magic = AX_EEPROM_MAGIC;
730
731 /* ax8817x returns 2 bytes from eeprom on read */
732 for (i=0; i < eeprom->len / 2; i++) {
733 if (asix_read_cmd(dev, AX_CMD_READ_EEPROM,
734 eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
735 return -EINVAL;
736 }
737 return 0;
738 }
739
740 static void asix_get_drvinfo (struct net_device *net,
741 struct ethtool_drvinfo *info)
742 {
743 struct usbnet *dev = netdev_priv(net);
744 struct asix_data *data = (struct asix_data *)&dev->data;
745
746 /* Inherit standard device info */
747 usbnet_get_drvinfo(net, info);
748 strncpy (info->driver, driver_name, sizeof info->driver);
749 strncpy (info->version, DRIVER_VERSION, sizeof info->version);
750 info->eedump_len = data->eeprom_len;
751 }
752
753 static u32 asix_get_link(struct net_device *net)
754 {
755 struct usbnet *dev = netdev_priv(net);
756
757 return mii_link_ok(&dev->mii);
758 }
759
760 static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
761 {
762 struct usbnet *dev = netdev_priv(net);
763
764 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
765 }
766
767 static int asix_set_mac_address(struct net_device *net, void *p)
768 {
769 struct usbnet *dev = netdev_priv(net);
770 struct asix_data *data = (struct asix_data *)&dev->data;
771 struct sockaddr *addr = p;
772
773 if (netif_running(net))
774 return -EBUSY;
775 if (!is_valid_ether_addr(addr->sa_data))
776 return -EADDRNOTAVAIL;
777
778 memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
779
780 /* We use the 20 byte dev->data
781 * for our 6 byte mac buffer
782 * to avoid allocating memory that
783 * is tricky to free later */
784 memcpy(data->mac_addr, addr->sa_data, ETH_ALEN);
785 asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN,
786 data->mac_addr);
787
788 return 0;
789 }
790
791 /* We need to override some ethtool_ops so we require our
792 own structure so we don't interfere with other usbnet
793 devices that may be connected at the same time. */
794 static const struct ethtool_ops ax88172_ethtool_ops = {
795 .get_drvinfo = asix_get_drvinfo,
796 .get_link = asix_get_link,
797 .get_msglevel = usbnet_get_msglevel,
798 .set_msglevel = usbnet_set_msglevel,
799 .get_wol = asix_get_wol,
800 .set_wol = asix_set_wol,
801 .get_eeprom_len = asix_get_eeprom_len,
802 .get_eeprom = asix_get_eeprom,
803 .get_settings = usbnet_get_settings,
804 .set_settings = usbnet_set_settings,
805 .nway_reset = usbnet_nway_reset,
806 };
807
808 static void ax88172_set_multicast(struct net_device *net)
809 {
810 struct usbnet *dev = netdev_priv(net);
811 struct asix_data *data = (struct asix_data *)&dev->data;
812 u8 rx_ctl = 0x8c;
813
814 if (net->flags & IFF_PROMISC) {
815 rx_ctl |= 0x01;
816 } else if (net->flags & IFF_ALLMULTI ||
817 netdev_mc_count(net) > AX_MAX_MCAST) {
818 rx_ctl |= 0x02;
819 } else if (netdev_mc_empty(net)) {
820 /* just broadcast and directed */
821 } else {
822 /* We use the 20 byte dev->data
823 * for our 8 byte filter buffer
824 * to avoid allocating memory that
825 * is tricky to free later */
826 struct netdev_hw_addr *ha;
827 u32 crc_bits;
828
829 memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
830
831 /* Build the multicast hash filter. */
832 netdev_for_each_mc_addr(ha, net) {
833 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
834 data->multi_filter[crc_bits >> 3] |=
835 1 << (crc_bits & 7);
836 }
837
838 asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
839 AX_MCAST_FILTER_SIZE, data->multi_filter);
840
841 rx_ctl |= 0x10;
842 }
843
844 asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
845 }
846
847 static int ax88172_link_reset(struct usbnet *dev)
848 {
849 u8 mode;
850 struct ethtool_cmd ecmd;
851
852 mii_check_media(&dev->mii, 1, 1);
853 mii_ethtool_gset(&dev->mii, &ecmd);
854 mode = AX88172_MEDIUM_DEFAULT;
855
856 if (ecmd.duplex != DUPLEX_FULL)
857 mode |= ~AX88172_MEDIUM_FD;
858
859 netdev_dbg(dev->net, "ax88172_link_reset() speed: %d duplex: %d setting mode to 0x%04x\n",
860 ecmd.speed, ecmd.duplex, mode);
861
862 asix_write_medium_mode(dev, mode);
863
864 return 0;
865 }
866
867 static const struct net_device_ops ax88172_netdev_ops = {
868 .ndo_open = usbnet_open,
869 .ndo_stop = usbnet_stop,
870 .ndo_start_xmit = usbnet_start_xmit,
871 .ndo_tx_timeout = usbnet_tx_timeout,
872 .ndo_change_mtu = usbnet_change_mtu,
873 .ndo_set_mac_address = eth_mac_addr,
874 .ndo_validate_addr = eth_validate_addr,
875 .ndo_do_ioctl = asix_ioctl,
876 .ndo_set_multicast_list = ax88172_set_multicast,
877 };
878
879 static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
880 {
881 int ret = 0;
882 u8 buf[ETH_ALEN];
883 int i;
884 unsigned long gpio_bits = dev->driver_info->data;
885 struct asix_data *data = (struct asix_data *)&dev->data;
886
887 data->eeprom_len = AX88172_EEPROM_LEN;
888
889 usbnet_get_endpoints(dev,intf);
890
891 /* Toggle the GPIOs in a manufacturer/model specific way */
892 for (i = 2; i >= 0; i--) {
893 if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
894 (gpio_bits >> (i * 8)) & 0xff, 0, 0,
895 NULL)) < 0)
896 goto out;
897 msleep(5);
898 }
899
900 if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0)
901 goto out;
902
903 /* Get the MAC address */
904 if ((ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID,
905 0, 0, ETH_ALEN, buf)) < 0) {
906 dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
907 goto out;
908 }
909 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
910
911 /* Initialize MII structure */
912 dev->mii.dev = dev->net;
913 dev->mii.mdio_read = asix_mdio_read;
914 dev->mii.mdio_write = asix_mdio_write;
915 dev->mii.phy_id_mask = 0x3f;
916 dev->mii.reg_num_mask = 0x1f;
917 dev->mii.phy_id = asix_get_phy_addr(dev);
918
919 dev->net->netdev_ops = &ax88172_netdev_ops;
920 dev->net->ethtool_ops = &ax88172_ethtool_ops;
921
922 asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
923 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
924 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
925 mii_nway_restart(&dev->mii);
926
927 return 0;
928
929 out:
930 return ret;
931 }
932
933 static const struct ethtool_ops ax88772_ethtool_ops = {
934 .get_drvinfo = asix_get_drvinfo,
935 .get_link = asix_get_link,
936 .get_msglevel = usbnet_get_msglevel,
937 .set_msglevel = usbnet_set_msglevel,
938 .get_wol = asix_get_wol,
939 .set_wol = asix_set_wol,
940 .get_eeprom_len = asix_get_eeprom_len,
941 .get_eeprom = asix_get_eeprom,
942 .get_settings = usbnet_get_settings,
943 .set_settings = usbnet_set_settings,
944 .nway_reset = usbnet_nway_reset,
945 };
946
947 static int ax88772_link_reset(struct usbnet *dev)
948 {
949 u16 mode;
950 struct ethtool_cmd ecmd;
951
952 mii_check_media(&dev->mii, 1, 1);
953 mii_ethtool_gset(&dev->mii, &ecmd);
954 mode = AX88772_MEDIUM_DEFAULT;
955
956 if (ecmd.speed != SPEED_100)
957 mode &= ~AX_MEDIUM_PS;
958
959 if (ecmd.duplex != DUPLEX_FULL)
960 mode &= ~AX_MEDIUM_FD;
961
962 netdev_dbg(dev->net, "ax88772_link_reset() speed: %d duplex: %d setting mode to 0x%04x\n",
963 ecmd.speed, ecmd.duplex, mode);
964
965 asix_write_medium_mode(dev, mode);
966
967 return 0;
968 }
969
970 static const struct net_device_ops ax88772_netdev_ops = {
971 .ndo_open = usbnet_open,
972 .ndo_stop = usbnet_stop,
973 .ndo_start_xmit = usbnet_start_xmit,
974 .ndo_tx_timeout = usbnet_tx_timeout,
975 .ndo_change_mtu = usbnet_change_mtu,
976 .ndo_set_mac_address = asix_set_mac_address,
977 .ndo_validate_addr = eth_validate_addr,
978 .ndo_do_ioctl = asix_ioctl,
979 .ndo_set_multicast_list = asix_set_multicast,
980 };
981
982 static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
983 {
984 int ret, embd_phy;
985 u16 rx_ctl;
986 struct asix_data *data = (struct asix_data *)&dev->data;
987 u8 buf[ETH_ALEN];
988 u32 phyid;
989
990 data->eeprom_len = AX88772_EEPROM_LEN;
991
992 usbnet_get_endpoints(dev,intf);
993
994 if ((ret = asix_write_gpio(dev,
995 AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0)
996 goto out;
997
998 /* 0x10 is the phy id of the embedded 10/100 ethernet phy */
999 embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
1000 if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
1001 embd_phy, 0, 0, NULL)) < 0) {
1002 dbg("Select PHY #1 failed: %d", ret);
1003 goto out;
1004 }
1005
1006 if ((ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL)) < 0)
1007 goto out;
1008
1009 msleep(150);
1010 if ((ret = asix_sw_reset(dev, AX_SWRESET_CLEAR)) < 0)
1011 goto out;
1012
1013 msleep(150);
1014 if (embd_phy) {
1015 if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
1016 goto out;
1017 }
1018 else {
1019 if ((ret = asix_sw_reset(dev, AX_SWRESET_PRTE)) < 0)
1020 goto out;
1021 }
1022
1023 msleep(150);
1024 rx_ctl = asix_read_rx_ctl(dev);
1025 dbg("RX_CTL is 0x%04x after software reset", rx_ctl);
1026 if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0)
1027 goto out;
1028
1029 rx_ctl = asix_read_rx_ctl(dev);
1030 dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);
1031
1032 /* Get the MAC address */
1033 if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
1034 0, 0, ETH_ALEN, buf)) < 0) {
1035 dbg("Failed to read MAC address: %d", ret);
1036 goto out;
1037 }
1038 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
1039
1040 /* Initialize MII structure */
1041 dev->mii.dev = dev->net;
1042 dev->mii.mdio_read = asix_mdio_read;
1043 dev->mii.mdio_write = asix_mdio_write;
1044 dev->mii.phy_id_mask = 0x1f;
1045 dev->mii.reg_num_mask = 0x1f;
1046 dev->mii.phy_id = asix_get_phy_addr(dev);
1047
1048 phyid = asix_get_phyid(dev);
1049 dbg("PHYID=0x%08x", phyid);
1050
1051 if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
1052 goto out;
1053
1054 msleep(150);
1055
1056 if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL)) < 0)
1057 goto out;
1058
1059 msleep(150);
1060
1061 dev->net->netdev_ops = &ax88772_netdev_ops;
1062 dev->net->ethtool_ops = &ax88772_ethtool_ops;
1063
1064 asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
1065 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
1066 ADVERTISE_ALL | ADVERTISE_CSMA);
1067 mii_nway_restart(&dev->mii);
1068
1069 if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0)
1070 goto out;
1071
1072 if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
1073 AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
1074 AX88772_IPG2_DEFAULT, 0, NULL)) < 0) {
1075 dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
1076 goto out;
1077 }
1078
1079 /* Set RX_CTL to default values with 2k buffer, and enable cactus */
1080 if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
1081 goto out;
1082
1083 rx_ctl = asix_read_rx_ctl(dev);
1084 dbg("RX_CTL is 0x%04x after all initializations", rx_ctl);
1085
1086 rx_ctl = asix_read_medium_status(dev);
1087 dbg("Medium Status is 0x%04x after all initializations", rx_ctl);
1088
1089 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
1090 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
1091 /* hard_mtu is still the default - the device does not support
1092 jumbo eth frames */
1093 dev->rx_urb_size = 2048;
1094 }
1095 return 0;
1096
1097 out:
1098 return ret;
1099 }
1100
1101 static struct ethtool_ops ax88178_ethtool_ops = {
1102 .get_drvinfo = asix_get_drvinfo,
1103 .get_link = asix_get_link,
1104 .get_msglevel = usbnet_get_msglevel,
1105 .set_msglevel = usbnet_set_msglevel,
1106 .get_wol = asix_get_wol,
1107 .set_wol = asix_set_wol,
1108 .get_eeprom_len = asix_get_eeprom_len,
1109 .get_eeprom = asix_get_eeprom,
1110 .get_settings = usbnet_get_settings,
1111 .set_settings = usbnet_set_settings,
1112 .nway_reset = usbnet_nway_reset,
1113 };
1114
1115 static int marvell_phy_init(struct usbnet *dev)
1116 {
1117 struct asix_data *data = (struct asix_data *)&dev->data;
1118 u16 reg;
1119
1120 netdev_dbg(dev->net, "marvell_phy_init()\n");
1121
1122 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS);
1123 netdev_dbg(dev->net, "MII_MARVELL_STATUS = 0x%04x\n", reg);
1124
1125 asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL,
1126 MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY);
1127
1128 if (data->ledmode) {
1129 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
1130 MII_MARVELL_LED_CTRL);
1131 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (1) = 0x%04x\n", reg);
1132
1133 reg &= 0xf8ff;
1134 reg |= (1 + 0x0100);
1135 asix_mdio_write(dev->net, dev->mii.phy_id,
1136 MII_MARVELL_LED_CTRL, reg);
1137
1138 reg = asix_mdio_read(dev->net, dev->mii.phy_id,
1139 MII_MARVELL_LED_CTRL);
1140 netdev_dbg(dev->net, "MII_MARVELL_LED_CTRL (2) = 0x%04x\n", reg);
1141 reg &= 0xfc0f;
1142 }
1143
1144 return 0;
1145 }
1146
1147 static int marvell_led_status(struct usbnet *dev, u16 speed)
1148 {
1149 u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL);
1150
1151 netdev_dbg(dev->net, "marvell_led_status() read 0x%04x\n", reg);
1152
1153 /* Clear out the center LED bits - 0x03F0 */
1154 reg &= 0xfc0f;
1155
1156 switch (speed) {
1157 case SPEED_1000:
1158 reg |= 0x03e0;
1159 break;
1160 case SPEED_100:
1161 reg |= 0x03b0;
1162 break;
1163 default:
1164 reg |= 0x02f0;
1165 }
1166
1167 netdev_dbg(dev->net, "marvell_led_status() writing 0x%04x\n", reg);
1168 asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg);
1169
1170 return 0;
1171 }
1172
1173 static int ax88178_link_reset(struct usbnet *dev)
1174 {
1175 u16 mode;
1176 struct ethtool_cmd ecmd;
1177 struct asix_data *data = (struct asix_data *)&dev->data;
1178
1179 netdev_dbg(dev->net, "ax88178_link_reset()\n");
1180
1181 mii_check_media(&dev->mii, 1, 1);
1182 mii_ethtool_gset(&dev->mii, &ecmd);
1183 mode = AX88178_MEDIUM_DEFAULT;
1184
1185 if (ecmd.speed == SPEED_1000)
1186 mode |= AX_MEDIUM_GM;
1187 else if (ecmd.speed == SPEED_100)
1188 mode |= AX_MEDIUM_PS;
1189 else
1190 mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM);
1191
1192 mode |= AX_MEDIUM_ENCK;
1193
1194 if (ecmd.duplex == DUPLEX_FULL)
1195 mode |= AX_MEDIUM_FD;
1196 else
1197 mode &= ~AX_MEDIUM_FD;
1198
1199 netdev_dbg(dev->net, "ax88178_link_reset() speed: %d duplex: %d setting mode to 0x%04x\n",
1200 ecmd.speed, ecmd.duplex, mode);
1201
1202 asix_write_medium_mode(dev, mode);
1203
1204 if (data->phymode == PHY_MODE_MARVELL && data->ledmode)
1205 marvell_led_status(dev, ecmd.speed);
1206
1207 return 0;
1208 }
1209
1210 static void ax88178_set_mfb(struct usbnet *dev)
1211 {
1212 u16 mfb = AX_RX_CTL_MFB_16384;
1213 u16 rxctl;
1214 u16 medium;
1215 int old_rx_urb_size = dev->rx_urb_size;
1216
1217 if (dev->hard_mtu < 2048) {
1218 dev->rx_urb_size = 2048;
1219 mfb = AX_RX_CTL_MFB_2048;
1220 } else if (dev->hard_mtu < 4096) {
1221 dev->rx_urb_size = 4096;
1222 mfb = AX_RX_CTL_MFB_4096;
1223 } else if (dev->hard_mtu < 8192) {
1224 dev->rx_urb_size = 8192;
1225 mfb = AX_RX_CTL_MFB_8192;
1226 } else if (dev->hard_mtu < 16384) {
1227 dev->rx_urb_size = 16384;
1228 mfb = AX_RX_CTL_MFB_16384;
1229 }
1230
1231 rxctl = asix_read_rx_ctl(dev);
1232 asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb);
1233
1234 medium = asix_read_medium_status(dev);
1235 if (dev->net->mtu > 1500)
1236 medium |= AX_MEDIUM_JFE;
1237 else
1238 medium &= ~AX_MEDIUM_JFE;
1239 asix_write_medium_mode(dev, medium);
1240
1241 if (dev->rx_urb_size > old_rx_urb_size)
1242 usbnet_unlink_rx_urbs(dev);
1243 }
1244
1245 static int ax88178_change_mtu(struct net_device *net, int new_mtu)
1246 {
1247 struct usbnet *dev = netdev_priv(net);
1248 int ll_mtu = new_mtu + net->hard_header_len + 4;
1249
1250 netdev_dbg(dev->net, "ax88178_change_mtu() new_mtu=%d\n", new_mtu);
1251
1252 if (new_mtu <= 0 || ll_mtu > 16384)
1253 return -EINVAL;
1254
1255 if ((ll_mtu % dev->maxpacket) == 0)
1256 return -EDOM;
1257
1258 net->mtu = new_mtu;
1259 dev->hard_mtu = net->mtu + net->hard_header_len;
1260 ax88178_set_mfb(dev);
1261
1262 return 0;
1263 }
1264
1265 static const struct net_device_ops ax88178_netdev_ops = {
1266 .ndo_open = usbnet_open,
1267 .ndo_stop = usbnet_stop,
1268 .ndo_start_xmit = usbnet_start_xmit,
1269 .ndo_tx_timeout = usbnet_tx_timeout,
1270 .ndo_set_mac_address = asix_set_mac_address,
1271 .ndo_validate_addr = eth_validate_addr,
1272 .ndo_set_multicast_list = asix_set_multicast,
1273 .ndo_do_ioctl = asix_ioctl,
1274 .ndo_change_mtu = ax88178_change_mtu,
1275 };
1276
1277 static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
1278 {
1279 struct asix_data *data = (struct asix_data *)&dev->data;
1280 int ret;
1281 u8 buf[ETH_ALEN];
1282 __le16 eeprom;
1283 u8 status;
1284 int gpio0 = 0;
1285 u32 phyid;
1286
1287 usbnet_get_endpoints(dev,intf);
1288
1289 asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
1290 dbg("GPIO Status: 0x%04x", status);
1291
1292 asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
1293 asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
1294 asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL);
1295
1296 dbg("EEPROM index 0x17 is 0x%04x", eeprom);
1297
1298 if (eeprom == cpu_to_le16(0xffff)) {
1299 data->phymode = PHY_MODE_MARVELL;
1300 data->ledmode = 0;
1301 gpio0 = 1;
1302 } else {
1303 data->phymode = le16_to_cpu(eeprom) & 7;
1304 data->ledmode = le16_to_cpu(eeprom) >> 8;
1305 gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
1306 }
1307 dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode);
1308
1309 asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
1310 if ((le16_to_cpu(eeprom) >> 8) != 1) {
1311 asix_write_gpio(dev, 0x003c, 30);
1312 asix_write_gpio(dev, 0x001c, 300);
1313 asix_write_gpio(dev, 0x003c, 30);
1314 } else {
1315 dbg("gpio phymode == 1 path");
1316 asix_write_gpio(dev, AX_GPIO_GPO1EN, 30);
1317 asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30);
1318 }
1319
1320 asix_sw_reset(dev, 0);
1321 msleep(150);
1322
1323 asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD);
1324 msleep(150);
1325
1326 asix_write_rx_ctl(dev, 0);
1327
1328 /* Get the MAC address */
1329 if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
1330 0, 0, ETH_ALEN, buf)) < 0) {
1331 dbg("Failed to read MAC address: %d", ret);
1332 goto out;
1333 }
1334 memcpy(dev->net->dev_addr, buf, ETH_ALEN);
1335
1336 /* Initialize MII structure */
1337 dev->mii.dev = dev->net;
1338 dev->mii.mdio_read = asix_mdio_read;
1339 dev->mii.mdio_write = asix_mdio_write;
1340 dev->mii.phy_id_mask = 0x1f;
1341 dev->mii.reg_num_mask = 0xff;
1342 dev->mii.supports_gmii = 1;
1343 dev->mii.phy_id = asix_get_phy_addr(dev);
1344
1345 dev->net->netdev_ops = &ax88178_netdev_ops;
1346 dev->net->ethtool_ops = &ax88178_ethtool_ops;
1347
1348 phyid = asix_get_phyid(dev);
1349 dbg("PHYID=0x%08x", phyid);
1350
1351 if (data->phymode == PHY_MODE_MARVELL) {
1352 marvell_phy_init(dev);
1353 msleep(60);
1354 }
1355
1356 asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR,
1357 BMCR_RESET | BMCR_ANENABLE);
1358 asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
1359 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
1360 asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000,
1361 ADVERTISE_1000FULL);
1362
1363 mii_nway_restart(&dev->mii);
1364
1365 if ((ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT)) < 0)
1366 goto out;
1367
1368 if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
1369 goto out;
1370
1371 /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
1372 if (dev->driver_info->flags & FLAG_FRAMING_AX) {
1373 /* hard_mtu is still the default - the device does not support
1374 jumbo eth frames */
1375 dev->rx_urb_size = 2048;
1376 }
1377 return 0;
1378
1379 out:
1380 return ret;
1381 }
1382
1383 static const struct driver_info ax8817x_info = {
1384 .description = "ASIX AX8817x USB 2.0 Ethernet",
1385 .bind = ax88172_bind,
1386 .status = asix_status,
1387 .link_reset = ax88172_link_reset,
1388 .reset = ax88172_link_reset,
1389 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1390 .data = 0x00130103,
1391 };
1392
1393 static const struct driver_info dlink_dub_e100_info = {
1394 .description = "DLink DUB-E100 USB Ethernet",
1395 .bind = ax88172_bind,
1396 .status = asix_status,
1397 .link_reset = ax88172_link_reset,
1398 .reset = ax88172_link_reset,
1399 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1400 .data = 0x009f9d9f,
1401 };
1402
1403 static const struct driver_info netgear_fa120_info = {
1404 .description = "Netgear FA-120 USB Ethernet",
1405 .bind = ax88172_bind,
1406 .status = asix_status,
1407 .link_reset = ax88172_link_reset,
1408 .reset = ax88172_link_reset,
1409 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1410 .data = 0x00130103,
1411 };
1412
1413 static const struct driver_info hawking_uf200_info = {
1414 .description = "Hawking UF200 USB Ethernet",
1415 .bind = ax88172_bind,
1416 .status = asix_status,
1417 .link_reset = ax88172_link_reset,
1418 .reset = ax88172_link_reset,
1419 .flags = FLAG_ETHER | FLAG_LINK_INTR,
1420 .data = 0x001f1d1f,
1421 };
1422
1423 static const struct driver_info ax88772_info = {
1424 .description = "ASIX AX88772 USB 2.0 Ethernet",
1425 .bind = ax88772_bind,
1426 .status = asix_status,
1427 .link_reset = ax88772_link_reset,
1428 .reset = ax88772_link_reset,
1429 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR,
1430 .rx_fixup = asix_rx_fixup,
1431 .tx_fixup = asix_tx_fixup,
1432 };
1433
1434 static const struct driver_info ax88178_info = {
1435 .description = "ASIX AX88178 USB 2.0 Ethernet",
1436 .bind = ax88178_bind,
1437 .status = asix_status,
1438 .link_reset = ax88178_link_reset,
1439 .reset = ax88178_link_reset,
1440 .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR,
1441 .rx_fixup = asix_rx_fixup,
1442 .tx_fixup = asix_tx_fixup,
1443 };
1444
1445 static const struct usb_device_id products [] = {
1446 {
1447 // Linksys USB200M
1448 USB_DEVICE (0x077b, 0x2226),
1449 .driver_info = (unsigned long) &ax8817x_info,
1450 }, {
1451 // Netgear FA120
1452 USB_DEVICE (0x0846, 0x1040),
1453 .driver_info = (unsigned long) &netgear_fa120_info,
1454 }, {
1455 // DLink DUB-E100
1456 USB_DEVICE (0x2001, 0x1a00),
1457 .driver_info = (unsigned long) &dlink_dub_e100_info,
1458 }, {
1459 // Intellinet, ST Lab USB Ethernet
1460 USB_DEVICE (0x0b95, 0x1720),
1461 .driver_info = (unsigned long) &ax8817x_info,
1462 }, {
1463 // Hawking UF200, TrendNet TU2-ET100
1464 USB_DEVICE (0x07b8, 0x420a),
1465 .driver_info = (unsigned long) &hawking_uf200_info,
1466 }, {
1467 // Billionton Systems, USB2AR
1468 USB_DEVICE (0x08dd, 0x90ff),
1469 .driver_info = (unsigned long) &ax8817x_info,
1470 }, {
1471 // ATEN UC210T
1472 USB_DEVICE (0x0557, 0x2009),
1473 .driver_info = (unsigned long) &ax8817x_info,
1474 }, {
1475 // Buffalo LUA-U2-KTX
1476 USB_DEVICE (0x0411, 0x003d),
1477 .driver_info = (unsigned long) &ax8817x_info,
1478 }, {
1479 // Buffalo LUA-U2-GT 10/100/1000
1480 USB_DEVICE (0x0411, 0x006e),
1481 .driver_info = (unsigned long) &ax88178_info,
1482 }, {
1483 // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
1484 USB_DEVICE (0x6189, 0x182d),
1485 .driver_info = (unsigned long) &ax8817x_info,
1486 }, {
1487 // corega FEther USB2-TX
1488 USB_DEVICE (0x07aa, 0x0017),
1489 .driver_info = (unsigned long) &ax8817x_info,
1490 }, {
1491 // Surecom EP-1427X-2
1492 USB_DEVICE (0x1189, 0x0893),
1493 .driver_info = (unsigned long) &ax8817x_info,
1494 }, {
1495 // goodway corp usb gwusb2e
1496 USB_DEVICE (0x1631, 0x6200),
1497 .driver_info = (unsigned long) &ax8817x_info,
1498 }, {
1499 // JVC MP-PRX1 Port Replicator
1500 USB_DEVICE (0x04f1, 0x3008),
1501 .driver_info = (unsigned long) &ax8817x_info,
1502 }, {
1503 // ASIX AX88772 10/100
1504 USB_DEVICE (0x0b95, 0x7720),
1505 .driver_info = (unsigned long) &ax88772_info,
1506 }, {
1507 // ASIX AX88178 10/100/1000
1508 USB_DEVICE (0x0b95, 0x1780),
1509 .driver_info = (unsigned long) &ax88178_info,
1510 }, {
1511 // Linksys USB200M Rev 2
1512 USB_DEVICE (0x13b1, 0x0018),
1513 .driver_info = (unsigned long) &ax88772_info,
1514 }, {
1515 // 0Q0 cable ethernet
1516 USB_DEVICE (0x1557, 0x7720),
1517 .driver_info = (unsigned long) &ax88772_info,
1518 }, {
1519 // DLink DUB-E100 H/W Ver B1
1520 USB_DEVICE (0x07d1, 0x3c05),
1521 .driver_info = (unsigned long) &ax88772_info,
1522 }, {
1523 // DLink DUB-E100 H/W Ver B1 Alternate
1524 USB_DEVICE (0x2001, 0x3c05),
1525 .driver_info = (unsigned long) &ax88772_info,
1526 }, {
1527 // Linksys USB1000
1528 USB_DEVICE (0x1737, 0x0039),
1529 .driver_info = (unsigned long) &ax88178_info,
1530 }, {
1531 // IO-DATA ETG-US2
1532 USB_DEVICE (0x04bb, 0x0930),
1533 .driver_info = (unsigned long) &ax88178_info,
1534 }, {
1535 // Belkin F5D5055
1536 USB_DEVICE(0x050d, 0x5055),
1537 .driver_info = (unsigned long) &ax88178_info,
1538 }, {
1539 // Apple USB Ethernet Adapter
1540 USB_DEVICE(0x05ac, 0x1402),
1541 .driver_info = (unsigned long) &ax88772_info,
1542 }, {
1543 // Cables-to-Go USB Ethernet Adapter
1544 USB_DEVICE(0x0b95, 0x772a),
1545 .driver_info = (unsigned long) &ax88772_info,
1546 }, {
1547 // ABOCOM for pci
1548 USB_DEVICE(0x14ea, 0xab11),
1549 .driver_info = (unsigned long) &ax88178_info,
1550 }, {
1551 // ASIX 88772a
1552 USB_DEVICE(0x0db0, 0xa877),
1553 .driver_info = (unsigned long) &ax88772_info,
1554 },
1555 { }, // END
1556 };
1557 MODULE_DEVICE_TABLE(usb, products);
1558
1559 static struct usb_driver asix_driver = {
1560 .name = "asix",
1561 .id_table = products,
1562 .probe = usbnet_probe,
1563 .suspend = usbnet_suspend,
1564 .resume = usbnet_resume,
1565 .disconnect = usbnet_disconnect,
1566 .supports_autosuspend = 1,
1567 };
1568
1569 static int __init asix_init(void)
1570 {
1571 return usb_register(&asix_driver);
1572 }
1573 module_init(asix_init);
1574
1575 static void __exit asix_exit(void)
1576 {
1577 usb_deregister(&asix_driver);
1578 }
1579 module_exit(asix_exit);
1580
1581 MODULE_AUTHOR("David Hollis");
1582 MODULE_DESCRIPTION("ASIX AX8817X based USB 2.0 Ethernet Devices");
1583 MODULE_LICENSE("GPL");
1584
Linux with added FPC-III support