Loading...
1/*
2 * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
3 *
4 * Copyright (C) 2011-2013 ASIX
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <linux/module.h>
21#include <linux/etherdevice.h>
22#include <linux/mii.h>
23#include <linux/usb.h>
24#include <linux/crc32.h>
25#include <linux/usb/usbnet.h>
26
27#define AX88179_PHY_ID 0x03
28#define AX_EEPROM_LEN 0x100
29#define AX88179_EEPROM_MAGIC 0x17900b95
30#define AX_MCAST_FLTSIZE 8
31#define AX_MAX_MCAST 64
32#define AX_INT_PPLS_LINK ((u32)BIT(16))
33#define AX_RXHDR_L4_TYPE_MASK 0x1c
34#define AX_RXHDR_L4_TYPE_UDP 4
35#define AX_RXHDR_L4_TYPE_TCP 16
36#define AX_RXHDR_L3CSUM_ERR 2
37#define AX_RXHDR_L4CSUM_ERR 1
38#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
39#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
40#define AX_ACCESS_MAC 0x01
41#define AX_ACCESS_PHY 0x02
42#define AX_ACCESS_EEPROM 0x04
43#define AX_ACCESS_EFUS 0x05
44#define AX_PAUSE_WATERLVL_HIGH 0x54
45#define AX_PAUSE_WATERLVL_LOW 0x55
46
47#define PHYSICAL_LINK_STATUS 0x02
48 #define AX_USB_SS 0x04
49 #define AX_USB_HS 0x02
50
51#define GENERAL_STATUS 0x03
52/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
53 #define AX_SECLD 0x04
54
55#define AX_SROM_ADDR 0x07
56#define AX_SROM_CMD 0x0a
57 #define EEP_RD 0x04
58 #define EEP_BUSY 0x10
59
60#define AX_SROM_DATA_LOW 0x08
61#define AX_SROM_DATA_HIGH 0x09
62
63#define AX_RX_CTL 0x0b
64 #define AX_RX_CTL_DROPCRCERR 0x0100
65 #define AX_RX_CTL_IPE 0x0200
66 #define AX_RX_CTL_START 0x0080
67 #define AX_RX_CTL_AP 0x0020
68 #define AX_RX_CTL_AM 0x0010
69 #define AX_RX_CTL_AB 0x0008
70 #define AX_RX_CTL_AMALL 0x0002
71 #define AX_RX_CTL_PRO 0x0001
72 #define AX_RX_CTL_STOP 0x0000
73
74#define AX_NODE_ID 0x10
75#define AX_MULFLTARY 0x16
76
77#define AX_MEDIUM_STATUS_MODE 0x22
78 #define AX_MEDIUM_GIGAMODE 0x01
79 #define AX_MEDIUM_FULL_DUPLEX 0x02
80 #define AX_MEDIUM_EN_125MHZ 0x08
81 #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
82 #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
83 #define AX_MEDIUM_RECEIVE_EN 0x100
84 #define AX_MEDIUM_PS 0x200
85 #define AX_MEDIUM_JUMBO_EN 0x8040
86
87#define AX_MONITOR_MOD 0x24
88 #define AX_MONITOR_MODE_RWLC 0x02
89 #define AX_MONITOR_MODE_RWMP 0x04
90 #define AX_MONITOR_MODE_PMEPOL 0x20
91 #define AX_MONITOR_MODE_PMETYPE 0x40
92
93#define AX_GPIO_CTRL 0x25
94 #define AX_GPIO_CTRL_GPIO3EN 0x80
95 #define AX_GPIO_CTRL_GPIO2EN 0x40
96 #define AX_GPIO_CTRL_GPIO1EN 0x20
97
98#define AX_PHYPWR_RSTCTL 0x26
99 #define AX_PHYPWR_RSTCTL_BZ 0x0010
100 #define AX_PHYPWR_RSTCTL_IPRL 0x0020
101 #define AX_PHYPWR_RSTCTL_AT 0x1000
102
103#define AX_RX_BULKIN_QCTRL 0x2e
104#define AX_CLK_SELECT 0x33
105 #define AX_CLK_SELECT_BCS 0x01
106 #define AX_CLK_SELECT_ACS 0x02
107 #define AX_CLK_SELECT_ULR 0x08
108
109#define AX_RXCOE_CTL 0x34
110 #define AX_RXCOE_IP 0x01
111 #define AX_RXCOE_TCP 0x02
112 #define AX_RXCOE_UDP 0x04
113 #define AX_RXCOE_TCPV6 0x20
114 #define AX_RXCOE_UDPV6 0x40
115
116#define AX_TXCOE_CTL 0x35
117 #define AX_TXCOE_IP 0x01
118 #define AX_TXCOE_TCP 0x02
119 #define AX_TXCOE_UDP 0x04
120 #define AX_TXCOE_TCPV6 0x20
121 #define AX_TXCOE_UDPV6 0x40
122
123#define AX_LEDCTRL 0x73
124
125#define GMII_PHY_PHYSR 0x11
126 #define GMII_PHY_PHYSR_SMASK 0xc000
127 #define GMII_PHY_PHYSR_GIGA 0x8000
128 #define GMII_PHY_PHYSR_100 0x4000
129 #define GMII_PHY_PHYSR_FULL 0x2000
130 #define GMII_PHY_PHYSR_LINK 0x400
131
132#define GMII_LED_ACT 0x1a
133 #define GMII_LED_ACTIVE_MASK 0xff8f
134 #define GMII_LED0_ACTIVE BIT(4)
135 #define GMII_LED1_ACTIVE BIT(5)
136 #define GMII_LED2_ACTIVE BIT(6)
137
138#define GMII_LED_LINK 0x1c
139 #define GMII_LED_LINK_MASK 0xf888
140 #define GMII_LED0_LINK_10 BIT(0)
141 #define GMII_LED0_LINK_100 BIT(1)
142 #define GMII_LED0_LINK_1000 BIT(2)
143 #define GMII_LED1_LINK_10 BIT(4)
144 #define GMII_LED1_LINK_100 BIT(5)
145 #define GMII_LED1_LINK_1000 BIT(6)
146 #define GMII_LED2_LINK_10 BIT(8)
147 #define GMII_LED2_LINK_100 BIT(9)
148 #define GMII_LED2_LINK_1000 BIT(10)
149 #define LED0_ACTIVE BIT(0)
150 #define LED0_LINK_10 BIT(1)
151 #define LED0_LINK_100 BIT(2)
152 #define LED0_LINK_1000 BIT(3)
153 #define LED0_FD BIT(4)
154 #define LED0_USB3_MASK 0x001f
155 #define LED1_ACTIVE BIT(5)
156 #define LED1_LINK_10 BIT(6)
157 #define LED1_LINK_100 BIT(7)
158 #define LED1_LINK_1000 BIT(8)
159 #define LED1_FD BIT(9)
160 #define LED1_USB3_MASK 0x03e0
161 #define LED2_ACTIVE BIT(10)
162 #define LED2_LINK_1000 BIT(13)
163 #define LED2_LINK_100 BIT(12)
164 #define LED2_LINK_10 BIT(11)
165 #define LED2_FD BIT(14)
166 #define LED_VALID BIT(15)
167 #define LED2_USB3_MASK 0x7c00
168
169#define GMII_PHYPAGE 0x1e
170#define GMII_PHY_PAGE_SELECT 0x1f
171 #define GMII_PHY_PGSEL_EXT 0x0007
172 #define GMII_PHY_PGSEL_PAGE0 0x0000
173
174struct ax88179_data {
175 u16 rxctl;
176 u16 reserved;
177};
178
179struct ax88179_int_data {
180 __le32 intdata1;
181 __le32 intdata2;
182};
183
184static const struct {
185 unsigned char ctrl, timer_l, timer_h, size, ifg;
186} AX88179_BULKIN_SIZE[] = {
187 {7, 0x4f, 0, 0x12, 0xff},
188 {7, 0x20, 3, 0x16, 0xff},
189 {7, 0xae, 7, 0x18, 0xff},
190 {7, 0xcc, 0x4c, 0x18, 8},
191};
192
193static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
194 u16 size, void *data, int in_pm)
195{
196 int ret;
197 int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
198
199 BUG_ON(!dev);
200
201 if (!in_pm)
202 fn = usbnet_read_cmd;
203 else
204 fn = usbnet_read_cmd_nopm;
205
206 ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
207 value, index, data, size);
208
209 if (unlikely(ret < 0))
210 netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
211 index, ret);
212
213 return ret;
214}
215
216static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
217 u16 size, void *data, int in_pm)
218{
219 int ret;
220 int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
221
222 BUG_ON(!dev);
223
224 if (!in_pm)
225 fn = usbnet_write_cmd;
226 else
227 fn = usbnet_write_cmd_nopm;
228
229 ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
230 value, index, data, size);
231
232 if (unlikely(ret < 0))
233 netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
234 index, ret);
235
236 return ret;
237}
238
239static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
240 u16 index, u16 size, void *data)
241{
242 u16 buf;
243
244 if (2 == size) {
245 buf = *((u16 *)data);
246 cpu_to_le16s(&buf);
247 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
248 USB_RECIP_DEVICE, value, index, &buf,
249 size);
250 } else {
251 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
252 USB_RECIP_DEVICE, value, index, data,
253 size);
254 }
255}
256
257static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
258 u16 index, u16 size, void *data)
259{
260 int ret;
261
262 if (2 == size) {
263 u16 buf;
264 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
265 le16_to_cpus(&buf);
266 *((u16 *)data) = buf;
267 } else if (4 == size) {
268 u32 buf;
269 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
270 le32_to_cpus(&buf);
271 *((u32 *)data) = buf;
272 } else {
273 ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
274 }
275
276 return ret;
277}
278
279static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
280 u16 index, u16 size, void *data)
281{
282 int ret;
283
284 if (2 == size) {
285 u16 buf;
286 buf = *((u16 *)data);
287 cpu_to_le16s(&buf);
288 ret = __ax88179_write_cmd(dev, cmd, value, index,
289 size, &buf, 1);
290 } else {
291 ret = __ax88179_write_cmd(dev, cmd, value, index,
292 size, data, 1);
293 }
294
295 return ret;
296}
297
298static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
299 u16 size, void *data)
300{
301 int ret;
302
303 if (2 == size) {
304 u16 buf;
305 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
306 le16_to_cpus(&buf);
307 *((u16 *)data) = buf;
308 } else if (4 == size) {
309 u32 buf;
310 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
311 le32_to_cpus(&buf);
312 *((u32 *)data) = buf;
313 } else {
314 ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
315 }
316
317 return ret;
318}
319
320static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
321 u16 size, void *data)
322{
323 int ret;
324
325 if (2 == size) {
326 u16 buf;
327 buf = *((u16 *)data);
328 cpu_to_le16s(&buf);
329 ret = __ax88179_write_cmd(dev, cmd, value, index,
330 size, &buf, 0);
331 } else {
332 ret = __ax88179_write_cmd(dev, cmd, value, index,
333 size, data, 0);
334 }
335
336 return ret;
337}
338
339static void ax88179_status(struct usbnet *dev, struct urb *urb)
340{
341 struct ax88179_int_data *event;
342 u32 link;
343
344 if (urb->actual_length < 8)
345 return;
346
347 event = urb->transfer_buffer;
348 le32_to_cpus((void *)&event->intdata1);
349
350 link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
351
352 if (netif_carrier_ok(dev->net) != link) {
353 usbnet_link_change(dev, link, 1);
354 netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
355 }
356}
357
358static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
359{
360 struct usbnet *dev = netdev_priv(netdev);
361 u16 res;
362
363 ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
364 return res;
365}
366
367static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
368 int val)
369{
370 struct usbnet *dev = netdev_priv(netdev);
371 u16 res = (u16) val;
372
373 ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
374}
375
376static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
377{
378 struct usbnet *dev = usb_get_intfdata(intf);
379 u16 tmp16;
380 u8 tmp8;
381
382 usbnet_suspend(intf, message);
383
384 /* Disable RX path */
385 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
386 2, 2, &tmp16);
387 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
388 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
389 2, 2, &tmp16);
390
391 /* Force bulk-in zero length */
392 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
393 2, 2, &tmp16);
394
395 tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
396 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
397 2, 2, &tmp16);
398
399 /* change clock */
400 tmp8 = 0;
401 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
402
403 /* Configure RX control register => stop operation */
404 tmp16 = AX_RX_CTL_STOP;
405 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
406
407 return 0;
408}
409
410/* This function is used to enable the autodetach function. */
411/* This function is determined by offset 0x43 of EEPROM */
412static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
413{
414 u16 tmp16;
415 u8 tmp8;
416 int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
417 int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
418
419 if (!in_pm) {
420 fnr = ax88179_read_cmd;
421 fnw = ax88179_write_cmd;
422 } else {
423 fnr = ax88179_read_cmd_nopm;
424 fnw = ax88179_write_cmd_nopm;
425 }
426
427 if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
428 return 0;
429
430 if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
431 return 0;
432
433 /* Enable Auto Detach bit */
434 tmp8 = 0;
435 fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
436 tmp8 |= AX_CLK_SELECT_ULR;
437 fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
438
439 fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
440 tmp16 |= AX_PHYPWR_RSTCTL_AT;
441 fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
442
443 return 0;
444}
445
446static int ax88179_resume(struct usb_interface *intf)
447{
448 struct usbnet *dev = usb_get_intfdata(intf);
449 u16 tmp16;
450 u8 tmp8;
451
452 usbnet_link_change(dev, 0, 0);
453
454 /* Power up ethernet PHY */
455 tmp16 = 0;
456 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
457 2, 2, &tmp16);
458 udelay(1000);
459
460 tmp16 = AX_PHYPWR_RSTCTL_IPRL;
461 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
462 2, 2, &tmp16);
463 msleep(200);
464
465 /* Ethernet PHY Auto Detach*/
466 ax88179_auto_detach(dev, 1);
467
468 /* Enable clock */
469 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
470 tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
471 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
472 msleep(100);
473
474 /* Configure RX control register => start operation */
475 tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
476 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
477 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
478
479 return usbnet_resume(intf);
480}
481
482static void
483ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
484{
485 struct usbnet *dev = netdev_priv(net);
486 u8 opt;
487
488 if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
489 1, 1, &opt) < 0) {
490 wolinfo->supported = 0;
491 wolinfo->wolopts = 0;
492 return;
493 }
494
495 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
496 wolinfo->wolopts = 0;
497 if (opt & AX_MONITOR_MODE_RWLC)
498 wolinfo->wolopts |= WAKE_PHY;
499 if (opt & AX_MONITOR_MODE_RWMP)
500 wolinfo->wolopts |= WAKE_MAGIC;
501}
502
503static int
504ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
505{
506 struct usbnet *dev = netdev_priv(net);
507 u8 opt = 0;
508
509 if (wolinfo->wolopts & WAKE_PHY)
510 opt |= AX_MONITOR_MODE_RWLC;
511 if (wolinfo->wolopts & WAKE_MAGIC)
512 opt |= AX_MONITOR_MODE_RWMP;
513
514 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
515 1, 1, &opt) < 0)
516 return -EINVAL;
517
518 return 0;
519}
520
521static int ax88179_get_eeprom_len(struct net_device *net)
522{
523 return AX_EEPROM_LEN;
524}
525
526static int
527ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
528 u8 *data)
529{
530 struct usbnet *dev = netdev_priv(net);
531 u16 *eeprom_buff;
532 int first_word, last_word;
533 int i, ret;
534
535 if (eeprom->len == 0)
536 return -EINVAL;
537
538 eeprom->magic = AX88179_EEPROM_MAGIC;
539
540 first_word = eeprom->offset >> 1;
541 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
542 eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1),
543 GFP_KERNEL);
544 if (!eeprom_buff)
545 return -ENOMEM;
546
547 /* ax88179/178A returns 2 bytes from eeprom on read */
548 for (i = first_word; i <= last_word; i++) {
549 ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
550 &eeprom_buff[i - first_word],
551 0);
552 if (ret < 0) {
553 kfree(eeprom_buff);
554 return -EIO;
555 }
556 }
557
558 memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
559 kfree(eeprom_buff);
560 return 0;
561}
562
563static int ax88179_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
564{
565 struct usbnet *dev = netdev_priv(net);
566 return mii_ethtool_gset(&dev->mii, cmd);
567}
568
569static int ax88179_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
570{
571 struct usbnet *dev = netdev_priv(net);
572 return mii_ethtool_sset(&dev->mii, cmd);
573}
574
575
576static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
577{
578 struct usbnet *dev = netdev_priv(net);
579 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
580}
581
582static const struct ethtool_ops ax88179_ethtool_ops = {
583 .get_link = ethtool_op_get_link,
584 .get_msglevel = usbnet_get_msglevel,
585 .set_msglevel = usbnet_set_msglevel,
586 .get_wol = ax88179_get_wol,
587 .set_wol = ax88179_set_wol,
588 .get_eeprom_len = ax88179_get_eeprom_len,
589 .get_eeprom = ax88179_get_eeprom,
590 .get_settings = ax88179_get_settings,
591 .set_settings = ax88179_set_settings,
592 .nway_reset = usbnet_nway_reset,
593};
594
595static void ax88179_set_multicast(struct net_device *net)
596{
597 struct usbnet *dev = netdev_priv(net);
598 struct ax88179_data *data = (struct ax88179_data *)dev->data;
599 u8 *m_filter = ((u8 *)dev->data) + 12;
600
601 data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
602
603 if (net->flags & IFF_PROMISC) {
604 data->rxctl |= AX_RX_CTL_PRO;
605 } else if (net->flags & IFF_ALLMULTI ||
606 netdev_mc_count(net) > AX_MAX_MCAST) {
607 data->rxctl |= AX_RX_CTL_AMALL;
608 } else if (netdev_mc_empty(net)) {
609 /* just broadcast and directed */
610 } else {
611 /* We use the 20 byte dev->data for our 8 byte filter buffer
612 * to avoid allocating memory that is tricky to free later
613 */
614 u32 crc_bits;
615 struct netdev_hw_addr *ha;
616
617 memset(m_filter, 0, AX_MCAST_FLTSIZE);
618
619 netdev_for_each_mc_addr(ha, net) {
620 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
621 *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
622 }
623
624 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
625 AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
626 m_filter);
627
628 data->rxctl |= AX_RX_CTL_AM;
629 }
630
631 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
632 2, 2, &data->rxctl);
633}
634
635static int
636ax88179_set_features(struct net_device *net, netdev_features_t features)
637{
638 u8 tmp;
639 struct usbnet *dev = netdev_priv(net);
640 netdev_features_t changed = net->features ^ features;
641
642 if (changed & NETIF_F_IP_CSUM) {
643 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
644 tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
645 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
646 }
647
648 if (changed & NETIF_F_IPV6_CSUM) {
649 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
650 tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
651 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
652 }
653
654 if (changed & NETIF_F_RXCSUM) {
655 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
656 tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
657 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
658 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
659 }
660
661 return 0;
662}
663
664static int ax88179_change_mtu(struct net_device *net, int new_mtu)
665{
666 struct usbnet *dev = netdev_priv(net);
667 u16 tmp16;
668
669 if (new_mtu <= 0 || new_mtu > 4088)
670 return -EINVAL;
671
672 net->mtu = new_mtu;
673 dev->hard_mtu = net->mtu + net->hard_header_len;
674
675 if (net->mtu > 1500) {
676 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
677 2, 2, &tmp16);
678 tmp16 |= AX_MEDIUM_JUMBO_EN;
679 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
680 2, 2, &tmp16);
681 } else {
682 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
683 2, 2, &tmp16);
684 tmp16 &= ~AX_MEDIUM_JUMBO_EN;
685 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
686 2, 2, &tmp16);
687 }
688
689 /* max qlen depend on hard_mtu and rx_urb_size */
690 usbnet_update_max_qlen(dev);
691
692 return 0;
693}
694
695static int ax88179_set_mac_addr(struct net_device *net, void *p)
696{
697 struct usbnet *dev = netdev_priv(net);
698 struct sockaddr *addr = p;
699
700 if (netif_running(net))
701 return -EBUSY;
702 if (!is_valid_ether_addr(addr->sa_data))
703 return -EADDRNOTAVAIL;
704
705 memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
706
707 /* Set the MAC address */
708 return ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
709 ETH_ALEN, net->dev_addr);
710}
711
712static const struct net_device_ops ax88179_netdev_ops = {
713 .ndo_open = usbnet_open,
714 .ndo_stop = usbnet_stop,
715 .ndo_start_xmit = usbnet_start_xmit,
716 .ndo_tx_timeout = usbnet_tx_timeout,
717 .ndo_change_mtu = ax88179_change_mtu,
718 .ndo_set_mac_address = ax88179_set_mac_addr,
719 .ndo_validate_addr = eth_validate_addr,
720 .ndo_do_ioctl = ax88179_ioctl,
721 .ndo_set_rx_mode = ax88179_set_multicast,
722 .ndo_set_features = ax88179_set_features,
723};
724
725static int ax88179_check_eeprom(struct usbnet *dev)
726{
727 u8 i, buf, eeprom[20];
728 u16 csum, delay = HZ / 10;
729 unsigned long jtimeout;
730
731 /* Read EEPROM content */
732 for (i = 0; i < 6; i++) {
733 buf = i;
734 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
735 1, 1, &buf) < 0)
736 return -EINVAL;
737
738 buf = EEP_RD;
739 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
740 1, 1, &buf) < 0)
741 return -EINVAL;
742
743 jtimeout = jiffies + delay;
744 do {
745 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
746 1, 1, &buf);
747
748 if (time_after(jiffies, jtimeout))
749 return -EINVAL;
750
751 } while (buf & EEP_BUSY);
752
753 __ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
754 2, 2, &eeprom[i * 2], 0);
755
756 if ((i == 0) && (eeprom[0] == 0xFF))
757 return -EINVAL;
758 }
759
760 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
761 csum = (csum >> 8) + (csum & 0xff);
762 if ((csum + eeprom[10]) != 0xff)
763 return -EINVAL;
764
765 return 0;
766}
767
768static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
769{
770 u8 i;
771 u8 efuse[64];
772 u16 csum = 0;
773
774 if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
775 return -EINVAL;
776
777 if (*efuse == 0xFF)
778 return -EINVAL;
779
780 for (i = 0; i < 64; i++)
781 csum = csum + efuse[i];
782
783 while (csum > 255)
784 csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
785
786 if (csum != 0xFF)
787 return -EINVAL;
788
789 *ledmode = (efuse[51] << 8) | efuse[52];
790
791 return 0;
792}
793
794static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
795{
796 u16 led;
797
798 /* Loaded the old eFuse LED Mode */
799 if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
800 return -EINVAL;
801
802 led >>= 8;
803 switch (led) {
804 case 0xFF:
805 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
806 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
807 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
808 break;
809 case 0xFE:
810 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
811 break;
812 case 0xFD:
813 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
814 LED2_LINK_10 | LED_VALID;
815 break;
816 case 0xFC:
817 led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
818 LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
819 break;
820 default:
821 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
822 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
823 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
824 break;
825 }
826
827 *ledvalue = led;
828
829 return 0;
830}
831
832static int ax88179_led_setting(struct usbnet *dev)
833{
834 u8 ledfd, value = 0;
835 u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
836 unsigned long jtimeout;
837
838 /* Check AX88179 version. UA1 or UA2*/
839 ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
840
841 if (!(value & AX_SECLD)) { /* UA1 */
842 value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
843 AX_GPIO_CTRL_GPIO1EN;
844 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
845 1, 1, &value) < 0)
846 return -EINVAL;
847 }
848
849 /* Check EEPROM */
850 if (!ax88179_check_eeprom(dev)) {
851 value = 0x42;
852 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
853 1, 1, &value) < 0)
854 return -EINVAL;
855
856 value = EEP_RD;
857 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
858 1, 1, &value) < 0)
859 return -EINVAL;
860
861 jtimeout = jiffies + delay;
862 do {
863 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
864 1, 1, &value);
865
866 if (time_after(jiffies, jtimeout))
867 return -EINVAL;
868
869 } while (value & EEP_BUSY);
870
871 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
872 1, 1, &value);
873 ledvalue = (value << 8);
874
875 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
876 1, 1, &value);
877 ledvalue |= value;
878
879 /* load internal ROM for defaule setting */
880 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
881 ax88179_convert_old_led(dev, &ledvalue);
882
883 } else if (!ax88179_check_efuse(dev, &ledvalue)) {
884 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
885 ax88179_convert_old_led(dev, &ledvalue);
886 } else {
887 ax88179_convert_old_led(dev, &ledvalue);
888 }
889
890 tmp = GMII_PHY_PGSEL_EXT;
891 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
892 GMII_PHY_PAGE_SELECT, 2, &tmp);
893
894 tmp = 0x2c;
895 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
896 GMII_PHYPAGE, 2, &tmp);
897
898 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
899 GMII_LED_ACT, 2, &ledact);
900
901 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
902 GMII_LED_LINK, 2, &ledlink);
903
904 ledact &= GMII_LED_ACTIVE_MASK;
905 ledlink &= GMII_LED_LINK_MASK;
906
907 if (ledvalue & LED0_ACTIVE)
908 ledact |= GMII_LED0_ACTIVE;
909
910 if (ledvalue & LED1_ACTIVE)
911 ledact |= GMII_LED1_ACTIVE;
912
913 if (ledvalue & LED2_ACTIVE)
914 ledact |= GMII_LED2_ACTIVE;
915
916 if (ledvalue & LED0_LINK_10)
917 ledlink |= GMII_LED0_LINK_10;
918
919 if (ledvalue & LED1_LINK_10)
920 ledlink |= GMII_LED1_LINK_10;
921
922 if (ledvalue & LED2_LINK_10)
923 ledlink |= GMII_LED2_LINK_10;
924
925 if (ledvalue & LED0_LINK_100)
926 ledlink |= GMII_LED0_LINK_100;
927
928 if (ledvalue & LED1_LINK_100)
929 ledlink |= GMII_LED1_LINK_100;
930
931 if (ledvalue & LED2_LINK_100)
932 ledlink |= GMII_LED2_LINK_100;
933
934 if (ledvalue & LED0_LINK_1000)
935 ledlink |= GMII_LED0_LINK_1000;
936
937 if (ledvalue & LED1_LINK_1000)
938 ledlink |= GMII_LED1_LINK_1000;
939
940 if (ledvalue & LED2_LINK_1000)
941 ledlink |= GMII_LED2_LINK_1000;
942
943 tmp = ledact;
944 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
945 GMII_LED_ACT, 2, &tmp);
946
947 tmp = ledlink;
948 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
949 GMII_LED_LINK, 2, &tmp);
950
951 tmp = GMII_PHY_PGSEL_PAGE0;
952 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
953 GMII_PHY_PAGE_SELECT, 2, &tmp);
954
955 /* LED full duplex setting */
956 ledfd = 0;
957 if (ledvalue & LED0_FD)
958 ledfd |= 0x01;
959 else if ((ledvalue & LED0_USB3_MASK) == 0)
960 ledfd |= 0x02;
961
962 if (ledvalue & LED1_FD)
963 ledfd |= 0x04;
964 else if ((ledvalue & LED1_USB3_MASK) == 0)
965 ledfd |= 0x08;
966
967 if (ledvalue & LED2_FD)
968 ledfd |= 0x10;
969 else if ((ledvalue & LED2_USB3_MASK) == 0)
970 ledfd |= 0x20;
971
972 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
973
974 return 0;
975}
976
977static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
978{
979 u8 buf[5];
980 u16 *tmp16;
981 u8 *tmp;
982 struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
983
984 usbnet_get_endpoints(dev, intf);
985
986 tmp16 = (u16 *)buf;
987 tmp = (u8 *)buf;
988
989 memset(ax179_data, 0, sizeof(*ax179_data));
990
991 /* Power up ethernet PHY */
992 *tmp16 = 0;
993 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
994 *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
995 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
996 msleep(200);
997
998 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
999 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1000 msleep(100);
1001
1002 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1003 ETH_ALEN, dev->net->dev_addr);
1004 memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1005
1006 /* RX bulk configuration */
1007 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1008 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1009
1010 dev->rx_urb_size = 1024 * 20;
1011
1012 *tmp = 0x34;
1013 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1014
1015 *tmp = 0x52;
1016 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1017 1, 1, tmp);
1018
1019 dev->net->netdev_ops = &ax88179_netdev_ops;
1020 dev->net->ethtool_ops = &ax88179_ethtool_ops;
1021 dev->net->needed_headroom = 8;
1022
1023 /* Initialize MII structure */
1024 dev->mii.dev = dev->net;
1025 dev->mii.mdio_read = ax88179_mdio_read;
1026 dev->mii.mdio_write = ax88179_mdio_write;
1027 dev->mii.phy_id_mask = 0xff;
1028 dev->mii.reg_num_mask = 0xff;
1029 dev->mii.phy_id = 0x03;
1030 dev->mii.supports_gmii = 1;
1031
1032 dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1033 NETIF_F_RXCSUM;
1034
1035 dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1036 NETIF_F_RXCSUM;
1037
1038 /* Enable checksum offload */
1039 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1040 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1041 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1042
1043 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1044 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1045 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1046
1047 /* Configure RX control register => start operation */
1048 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1049 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1050 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1051
1052 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1053 AX_MONITOR_MODE_RWMP;
1054 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1055
1056 /* Configure default medium type => giga */
1057 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1058 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1059 AX_MEDIUM_GIGAMODE;
1060 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1061 2, 2, tmp16);
1062
1063 ax88179_led_setting(dev);
1064
1065 /* Restart autoneg */
1066 mii_nway_restart(&dev->mii);
1067
1068 usbnet_link_change(dev, 0, 0);
1069
1070 return 0;
1071}
1072
1073static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
1074{
1075 u16 tmp16;
1076
1077 /* Configure RX control register => stop operation */
1078 tmp16 = AX_RX_CTL_STOP;
1079 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
1080
1081 tmp16 = 0;
1082 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
1083
1084 /* Power down ethernet PHY */
1085 tmp16 = 0;
1086 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
1087}
1088
1089static void
1090ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
1091{
1092 skb->ip_summed = CHECKSUM_NONE;
1093
1094 /* checksum error bit is set */
1095 if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
1096 (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
1097 return;
1098
1099 /* It must be a TCP or UDP packet with a valid checksum */
1100 if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
1101 ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
1102 skb->ip_summed = CHECKSUM_UNNECESSARY;
1103}
1104
1105static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1106{
1107 struct sk_buff *ax_skb;
1108 int pkt_cnt;
1109 u32 rx_hdr;
1110 u16 hdr_off;
1111 u32 *pkt_hdr;
1112
1113 /* This check is no longer done by usbnet */
1114 if (skb->len < dev->net->hard_header_len)
1115 return 0;
1116
1117 skb_trim(skb, skb->len - 4);
1118 memcpy(&rx_hdr, skb_tail_pointer(skb), 4);
1119 le32_to_cpus(&rx_hdr);
1120
1121 pkt_cnt = (u16)rx_hdr;
1122 hdr_off = (u16)(rx_hdr >> 16);
1123 pkt_hdr = (u32 *)(skb->data + hdr_off);
1124
1125 while (pkt_cnt--) {
1126 u16 pkt_len;
1127
1128 le32_to_cpus(pkt_hdr);
1129 pkt_len = (*pkt_hdr >> 16) & 0x1fff;
1130
1131 /* Check CRC or runt packet */
1132 if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
1133 (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
1134 skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1135 pkt_hdr++;
1136 continue;
1137 }
1138
1139 if (pkt_cnt == 0) {
1140 /* Skip IP alignment psudo header */
1141 skb_pull(skb, 2);
1142 skb->len = pkt_len;
1143 skb_set_tail_pointer(skb, pkt_len);
1144 skb->truesize = pkt_len + sizeof(struct sk_buff);
1145 ax88179_rx_checksum(skb, pkt_hdr);
1146 return 1;
1147 }
1148
1149 ax_skb = skb_clone(skb, GFP_ATOMIC);
1150 if (ax_skb) {
1151 ax_skb->len = pkt_len;
1152 ax_skb->data = skb->data + 2;
1153 skb_set_tail_pointer(ax_skb, pkt_len);
1154 ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
1155 ax88179_rx_checksum(ax_skb, pkt_hdr);
1156 usbnet_skb_return(dev, ax_skb);
1157 } else {
1158 return 0;
1159 }
1160
1161 skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1162 pkt_hdr++;
1163 }
1164 return 1;
1165}
1166
1167static struct sk_buff *
1168ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
1169{
1170 u32 tx_hdr1, tx_hdr2;
1171 int frame_size = dev->maxpacket;
1172 int mss = skb_shinfo(skb)->gso_size;
1173 int headroom;
1174
1175 tx_hdr1 = skb->len;
1176 tx_hdr2 = mss;
1177 if (((skb->len + 8) % frame_size) == 0)
1178 tx_hdr2 |= 0x80008000; /* Enable padding */
1179
1180 headroom = skb_headroom(skb) - 8;
1181
1182 if ((skb_header_cloned(skb) || headroom < 0) &&
1183 pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
1184 dev_kfree_skb_any(skb);
1185 return NULL;
1186 }
1187
1188 skb_push(skb, 4);
1189 cpu_to_le32s(&tx_hdr2);
1190 skb_copy_to_linear_data(skb, &tx_hdr2, 4);
1191
1192 skb_push(skb, 4);
1193 cpu_to_le32s(&tx_hdr1);
1194 skb_copy_to_linear_data(skb, &tx_hdr1, 4);
1195
1196 return skb;
1197}
1198
1199static int ax88179_link_reset(struct usbnet *dev)
1200{
1201 struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1202 u8 tmp[5], link_sts;
1203 u16 mode, tmp16, delay = HZ / 10;
1204 u32 tmp32 = 0x40000000;
1205 unsigned long jtimeout;
1206
1207 jtimeout = jiffies + delay;
1208 while (tmp32 & 0x40000000) {
1209 mode = 0;
1210 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
1211 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
1212 &ax179_data->rxctl);
1213
1214 /*link up, check the usb device control TX FIFO full or empty*/
1215 ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
1216
1217 if (time_after(jiffies, jtimeout))
1218 return 0;
1219 }
1220
1221 mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1222 AX_MEDIUM_RXFLOW_CTRLEN;
1223
1224 ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
1225 1, 1, &link_sts);
1226
1227 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1228 GMII_PHY_PHYSR, 2, &tmp16);
1229
1230 if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
1231 return 0;
1232 } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1233 mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
1234 if (dev->net->mtu > 1500)
1235 mode |= AX_MEDIUM_JUMBO_EN;
1236
1237 if (link_sts & AX_USB_SS)
1238 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1239 else if (link_sts & AX_USB_HS)
1240 memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
1241 else
1242 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1243 } else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1244 mode |= AX_MEDIUM_PS;
1245
1246 if (link_sts & (AX_USB_SS | AX_USB_HS))
1247 memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
1248 else
1249 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1250 } else {
1251 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1252 }
1253
1254 /* RX bulk configuration */
1255 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1256
1257 dev->rx_urb_size = (1024 * (tmp[3] + 2));
1258
1259 if (tmp16 & GMII_PHY_PHYSR_FULL)
1260 mode |= AX_MEDIUM_FULL_DUPLEX;
1261 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1262 2, 2, &mode);
1263
1264 netif_carrier_on(dev->net);
1265
1266 return 0;
1267}
1268
1269static int ax88179_reset(struct usbnet *dev)
1270{
1271 u8 buf[5];
1272 u16 *tmp16;
1273 u8 *tmp;
1274
1275 tmp16 = (u16 *)buf;
1276 tmp = (u8 *)buf;
1277
1278 /* Power up ethernet PHY */
1279 *tmp16 = 0;
1280 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1281
1282 *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1283 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1284 msleep(200);
1285
1286 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1287 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1288 msleep(100);
1289
1290 /* Ethernet PHY Auto Detach*/
1291 ax88179_auto_detach(dev, 0);
1292
1293 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
1294 dev->net->dev_addr);
1295 memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1296
1297 /* RX bulk configuration */
1298 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1299 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1300
1301 dev->rx_urb_size = 1024 * 20;
1302
1303 *tmp = 0x34;
1304 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1305
1306 *tmp = 0x52;
1307 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1308 1, 1, tmp);
1309
1310 dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1311 NETIF_F_RXCSUM;
1312
1313 dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1314 NETIF_F_RXCSUM;
1315
1316 /* Enable checksum offload */
1317 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1318 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1319 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1320
1321 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1322 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1323 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1324
1325 /* Configure RX control register => start operation */
1326 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1327 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1328 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1329
1330 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1331 AX_MONITOR_MODE_RWMP;
1332 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1333
1334 /* Configure default medium type => giga */
1335 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1336 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1337 AX_MEDIUM_GIGAMODE;
1338 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1339 2, 2, tmp16);
1340
1341 ax88179_led_setting(dev);
1342
1343 /* Restart autoneg */
1344 mii_nway_restart(&dev->mii);
1345
1346 usbnet_link_change(dev, 0, 0);
1347
1348 return 0;
1349}
1350
1351static int ax88179_stop(struct usbnet *dev)
1352{
1353 u16 tmp16;
1354
1355 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1356 2, 2, &tmp16);
1357 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
1358 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1359 2, 2, &tmp16);
1360
1361 return 0;
1362}
1363
1364static const struct driver_info ax88179_info = {
1365 .description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
1366 .bind = ax88179_bind,
1367 .unbind = ax88179_unbind,
1368 .status = ax88179_status,
1369 .link_reset = ax88179_link_reset,
1370 .reset = ax88179_reset,
1371 .stop = ax88179_stop,
1372 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1373 .rx_fixup = ax88179_rx_fixup,
1374 .tx_fixup = ax88179_tx_fixup,
1375};
1376
1377static const struct driver_info ax88178a_info = {
1378 .description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
1379 .bind = ax88179_bind,
1380 .unbind = ax88179_unbind,
1381 .status = ax88179_status,
1382 .link_reset = ax88179_link_reset,
1383 .reset = ax88179_reset,
1384 .stop = ax88179_stop,
1385 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1386 .rx_fixup = ax88179_rx_fixup,
1387 .tx_fixup = ax88179_tx_fixup,
1388};
1389
1390static const struct driver_info dlink_dub1312_info = {
1391 .description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
1392 .bind = ax88179_bind,
1393 .unbind = ax88179_unbind,
1394 .status = ax88179_status,
1395 .link_reset = ax88179_link_reset,
1396 .reset = ax88179_reset,
1397 .stop = ax88179_stop,
1398 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1399 .rx_fixup = ax88179_rx_fixup,
1400 .tx_fixup = ax88179_tx_fixup,
1401};
1402
1403static const struct driver_info sitecom_info = {
1404 .description = "Sitecom USB 3.0 to Gigabit Adapter",
1405 .bind = ax88179_bind,
1406 .unbind = ax88179_unbind,
1407 .status = ax88179_status,
1408 .link_reset = ax88179_link_reset,
1409 .reset = ax88179_reset,
1410 .stop = ax88179_stop,
1411 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1412 .rx_fixup = ax88179_rx_fixup,
1413 .tx_fixup = ax88179_tx_fixup,
1414};
1415
1416static const struct driver_info samsung_info = {
1417 .description = "Samsung USB Ethernet Adapter",
1418 .bind = ax88179_bind,
1419 .unbind = ax88179_unbind,
1420 .status = ax88179_status,
1421 .link_reset = ax88179_link_reset,
1422 .reset = ax88179_reset,
1423 .stop = ax88179_stop,
1424 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1425 .rx_fixup = ax88179_rx_fixup,
1426 .tx_fixup = ax88179_tx_fixup,
1427};
1428
1429static const struct driver_info lenovo_info = {
1430 .description = "Lenovo OneLinkDock Gigabit LAN",
1431 .bind = ax88179_bind,
1432 .unbind = ax88179_unbind,
1433 .status = ax88179_status,
1434 .link_reset = ax88179_link_reset,
1435 .reset = ax88179_reset,
1436 .stop = ax88179_stop,
1437 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1438 .rx_fixup = ax88179_rx_fixup,
1439 .tx_fixup = ax88179_tx_fixup,
1440};
1441
1442static const struct usb_device_id products[] = {
1443{
1444 /* ASIX AX88179 10/100/1000 */
1445 USB_DEVICE(0x0b95, 0x1790),
1446 .driver_info = (unsigned long)&ax88179_info,
1447}, {
1448 /* ASIX AX88178A 10/100/1000 */
1449 USB_DEVICE(0x0b95, 0x178a),
1450 .driver_info = (unsigned long)&ax88178a_info,
1451}, {
1452 /* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
1453 USB_DEVICE(0x2001, 0x4a00),
1454 .driver_info = (unsigned long)&dlink_dub1312_info,
1455}, {
1456 /* Sitecom USB 3.0 to Gigabit Adapter */
1457 USB_DEVICE(0x0df6, 0x0072),
1458 .driver_info = (unsigned long)&sitecom_info,
1459}, {
1460 /* Samsung USB Ethernet Adapter */
1461 USB_DEVICE(0x04e8, 0xa100),
1462 .driver_info = (unsigned long)&samsung_info,
1463}, {
1464 /* Lenovo OneLinkDock Gigabit LAN */
1465 USB_DEVICE(0x17ef, 0x304b),
1466 .driver_info = (unsigned long)&lenovo_info,
1467},
1468 { },
1469};
1470MODULE_DEVICE_TABLE(usb, products);
1471
1472static struct usb_driver ax88179_178a_driver = {
1473 .name = "ax88179_178a",
1474 .id_table = products,
1475 .probe = usbnet_probe,
1476 .suspend = ax88179_suspend,
1477 .resume = ax88179_resume,
1478 .reset_resume = ax88179_resume,
1479 .disconnect = usbnet_disconnect,
1480 .supports_autosuspend = 1,
1481 .disable_hub_initiated_lpm = 1,
1482};
1483
1484module_usb_driver(ax88179_178a_driver);
1485
1486MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
1487MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ASIX AX88179/178A USB 3.0/2.0 to Gigabit Ethernet Devices
4 *
5 * Copyright (C) 2011-2013 ASIX
6 */
7
8#include <linux/module.h>
9#include <linux/etherdevice.h>
10#include <linux/mii.h>
11#include <linux/usb.h>
12#include <linux/crc32.h>
13#include <linux/usb/usbnet.h>
14#include <uapi/linux/mdio.h>
15#include <linux/mdio.h>
16
17#define AX88179_PHY_ID 0x03
18#define AX_EEPROM_LEN 0x100
19#define AX88179_EEPROM_MAGIC 0x17900b95
20#define AX_MCAST_FLTSIZE 8
21#define AX_MAX_MCAST 64
22#define AX_INT_PPLS_LINK ((u32)BIT(16))
23#define AX_RXHDR_L4_TYPE_MASK 0x1c
24#define AX_RXHDR_L4_TYPE_UDP 4
25#define AX_RXHDR_L4_TYPE_TCP 16
26#define AX_RXHDR_L3CSUM_ERR 2
27#define AX_RXHDR_L4CSUM_ERR 1
28#define AX_RXHDR_CRC_ERR ((u32)BIT(29))
29#define AX_RXHDR_DROP_ERR ((u32)BIT(31))
30#define AX_ACCESS_MAC 0x01
31#define AX_ACCESS_PHY 0x02
32#define AX_ACCESS_EEPROM 0x04
33#define AX_ACCESS_EFUS 0x05
34#define AX_PAUSE_WATERLVL_HIGH 0x54
35#define AX_PAUSE_WATERLVL_LOW 0x55
36
37#define PHYSICAL_LINK_STATUS 0x02
38 #define AX_USB_SS 0x04
39 #define AX_USB_HS 0x02
40
41#define GENERAL_STATUS 0x03
42/* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
43 #define AX_SECLD 0x04
44
45#define AX_SROM_ADDR 0x07
46#define AX_SROM_CMD 0x0a
47 #define EEP_RD 0x04
48 #define EEP_BUSY 0x10
49
50#define AX_SROM_DATA_LOW 0x08
51#define AX_SROM_DATA_HIGH 0x09
52
53#define AX_RX_CTL 0x0b
54 #define AX_RX_CTL_DROPCRCERR 0x0100
55 #define AX_RX_CTL_IPE 0x0200
56 #define AX_RX_CTL_START 0x0080
57 #define AX_RX_CTL_AP 0x0020
58 #define AX_RX_CTL_AM 0x0010
59 #define AX_RX_CTL_AB 0x0008
60 #define AX_RX_CTL_AMALL 0x0002
61 #define AX_RX_CTL_PRO 0x0001
62 #define AX_RX_CTL_STOP 0x0000
63
64#define AX_NODE_ID 0x10
65#define AX_MULFLTARY 0x16
66
67#define AX_MEDIUM_STATUS_MODE 0x22
68 #define AX_MEDIUM_GIGAMODE 0x01
69 #define AX_MEDIUM_FULL_DUPLEX 0x02
70 #define AX_MEDIUM_EN_125MHZ 0x08
71 #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
72 #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
73 #define AX_MEDIUM_RECEIVE_EN 0x100
74 #define AX_MEDIUM_PS 0x200
75 #define AX_MEDIUM_JUMBO_EN 0x8040
76
77#define AX_MONITOR_MOD 0x24
78 #define AX_MONITOR_MODE_RWLC 0x02
79 #define AX_MONITOR_MODE_RWMP 0x04
80 #define AX_MONITOR_MODE_PMEPOL 0x20
81 #define AX_MONITOR_MODE_PMETYPE 0x40
82
83#define AX_GPIO_CTRL 0x25
84 #define AX_GPIO_CTRL_GPIO3EN 0x80
85 #define AX_GPIO_CTRL_GPIO2EN 0x40
86 #define AX_GPIO_CTRL_GPIO1EN 0x20
87
88#define AX_PHYPWR_RSTCTL 0x26
89 #define AX_PHYPWR_RSTCTL_BZ 0x0010
90 #define AX_PHYPWR_RSTCTL_IPRL 0x0020
91 #define AX_PHYPWR_RSTCTL_AT 0x1000
92
93#define AX_RX_BULKIN_QCTRL 0x2e
94#define AX_CLK_SELECT 0x33
95 #define AX_CLK_SELECT_BCS 0x01
96 #define AX_CLK_SELECT_ACS 0x02
97 #define AX_CLK_SELECT_ULR 0x08
98
99#define AX_RXCOE_CTL 0x34
100 #define AX_RXCOE_IP 0x01
101 #define AX_RXCOE_TCP 0x02
102 #define AX_RXCOE_UDP 0x04
103 #define AX_RXCOE_TCPV6 0x20
104 #define AX_RXCOE_UDPV6 0x40
105
106#define AX_TXCOE_CTL 0x35
107 #define AX_TXCOE_IP 0x01
108 #define AX_TXCOE_TCP 0x02
109 #define AX_TXCOE_UDP 0x04
110 #define AX_TXCOE_TCPV6 0x20
111 #define AX_TXCOE_UDPV6 0x40
112
113#define AX_LEDCTRL 0x73
114
115#define GMII_PHY_PHYSR 0x11
116 #define GMII_PHY_PHYSR_SMASK 0xc000
117 #define GMII_PHY_PHYSR_GIGA 0x8000
118 #define GMII_PHY_PHYSR_100 0x4000
119 #define GMII_PHY_PHYSR_FULL 0x2000
120 #define GMII_PHY_PHYSR_LINK 0x400
121
122#define GMII_LED_ACT 0x1a
123 #define GMII_LED_ACTIVE_MASK 0xff8f
124 #define GMII_LED0_ACTIVE BIT(4)
125 #define GMII_LED1_ACTIVE BIT(5)
126 #define GMII_LED2_ACTIVE BIT(6)
127
128#define GMII_LED_LINK 0x1c
129 #define GMII_LED_LINK_MASK 0xf888
130 #define GMII_LED0_LINK_10 BIT(0)
131 #define GMII_LED0_LINK_100 BIT(1)
132 #define GMII_LED0_LINK_1000 BIT(2)
133 #define GMII_LED1_LINK_10 BIT(4)
134 #define GMII_LED1_LINK_100 BIT(5)
135 #define GMII_LED1_LINK_1000 BIT(6)
136 #define GMII_LED2_LINK_10 BIT(8)
137 #define GMII_LED2_LINK_100 BIT(9)
138 #define GMII_LED2_LINK_1000 BIT(10)
139 #define LED0_ACTIVE BIT(0)
140 #define LED0_LINK_10 BIT(1)
141 #define LED0_LINK_100 BIT(2)
142 #define LED0_LINK_1000 BIT(3)
143 #define LED0_FD BIT(4)
144 #define LED0_USB3_MASK 0x001f
145 #define LED1_ACTIVE BIT(5)
146 #define LED1_LINK_10 BIT(6)
147 #define LED1_LINK_100 BIT(7)
148 #define LED1_LINK_1000 BIT(8)
149 #define LED1_FD BIT(9)
150 #define LED1_USB3_MASK 0x03e0
151 #define LED2_ACTIVE BIT(10)
152 #define LED2_LINK_1000 BIT(13)
153 #define LED2_LINK_100 BIT(12)
154 #define LED2_LINK_10 BIT(11)
155 #define LED2_FD BIT(14)
156 #define LED_VALID BIT(15)
157 #define LED2_USB3_MASK 0x7c00
158
159#define GMII_PHYPAGE 0x1e
160#define GMII_PHY_PAGE_SELECT 0x1f
161 #define GMII_PHY_PGSEL_EXT 0x0007
162 #define GMII_PHY_PGSEL_PAGE0 0x0000
163 #define GMII_PHY_PGSEL_PAGE3 0x0003
164 #define GMII_PHY_PGSEL_PAGE5 0x0005
165
166struct ax88179_data {
167 u8 eee_enabled;
168 u8 eee_active;
169 u16 rxctl;
170 u16 reserved;
171};
172
173struct ax88179_int_data {
174 __le32 intdata1;
175 __le32 intdata2;
176};
177
178static const struct {
179 unsigned char ctrl, timer_l, timer_h, size, ifg;
180} AX88179_BULKIN_SIZE[] = {
181 {7, 0x4f, 0, 0x12, 0xff},
182 {7, 0x20, 3, 0x16, 0xff},
183 {7, 0xae, 7, 0x18, 0xff},
184 {7, 0xcc, 0x4c, 0x18, 8},
185};
186
187static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
188 u16 size, void *data, int in_pm)
189{
190 int ret;
191 int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
192
193 BUG_ON(!dev);
194
195 if (!in_pm)
196 fn = usbnet_read_cmd;
197 else
198 fn = usbnet_read_cmd_nopm;
199
200 ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
201 value, index, data, size);
202
203 if (unlikely(ret < 0))
204 netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
205 index, ret);
206
207 return ret;
208}
209
210static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
211 u16 size, void *data, int in_pm)
212{
213 int ret;
214 int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
215
216 BUG_ON(!dev);
217
218 if (!in_pm)
219 fn = usbnet_write_cmd;
220 else
221 fn = usbnet_write_cmd_nopm;
222
223 ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
224 value, index, data, size);
225
226 if (unlikely(ret < 0))
227 netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
228 index, ret);
229
230 return ret;
231}
232
233static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
234 u16 index, u16 size, void *data)
235{
236 u16 buf;
237
238 if (2 == size) {
239 buf = *((u16 *)data);
240 cpu_to_le16s(&buf);
241 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
242 USB_RECIP_DEVICE, value, index, &buf,
243 size);
244 } else {
245 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
246 USB_RECIP_DEVICE, value, index, data,
247 size);
248 }
249}
250
251static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
252 u16 index, u16 size, void *data)
253{
254 int ret;
255
256 if (2 == size) {
257 u16 buf;
258 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
259 le16_to_cpus(&buf);
260 *((u16 *)data) = buf;
261 } else if (4 == size) {
262 u32 buf;
263 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
264 le32_to_cpus(&buf);
265 *((u32 *)data) = buf;
266 } else {
267 ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
268 }
269
270 return ret;
271}
272
273static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
274 u16 index, u16 size, void *data)
275{
276 int ret;
277
278 if (2 == size) {
279 u16 buf;
280 buf = *((u16 *)data);
281 cpu_to_le16s(&buf);
282 ret = __ax88179_write_cmd(dev, cmd, value, index,
283 size, &buf, 1);
284 } else {
285 ret = __ax88179_write_cmd(dev, cmd, value, index,
286 size, data, 1);
287 }
288
289 return ret;
290}
291
292static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
293 u16 size, void *data)
294{
295 int ret;
296
297 if (2 == size) {
298 u16 buf;
299 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
300 le16_to_cpus(&buf);
301 *((u16 *)data) = buf;
302 } else if (4 == size) {
303 u32 buf;
304 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
305 le32_to_cpus(&buf);
306 *((u32 *)data) = buf;
307 } else {
308 ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
309 }
310
311 return ret;
312}
313
314static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
315 u16 size, void *data)
316{
317 int ret;
318
319 if (2 == size) {
320 u16 buf;
321 buf = *((u16 *)data);
322 cpu_to_le16s(&buf);
323 ret = __ax88179_write_cmd(dev, cmd, value, index,
324 size, &buf, 0);
325 } else {
326 ret = __ax88179_write_cmd(dev, cmd, value, index,
327 size, data, 0);
328 }
329
330 return ret;
331}
332
333static void ax88179_status(struct usbnet *dev, struct urb *urb)
334{
335 struct ax88179_int_data *event;
336 u32 link;
337
338 if (urb->actual_length < 8)
339 return;
340
341 event = urb->transfer_buffer;
342 le32_to_cpus((void *)&event->intdata1);
343
344 link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
345
346 if (netif_carrier_ok(dev->net) != link) {
347 usbnet_link_change(dev, link, 1);
348 netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
349 }
350}
351
352static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
353{
354 struct usbnet *dev = netdev_priv(netdev);
355 u16 res;
356
357 ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
358 return res;
359}
360
361static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
362 int val)
363{
364 struct usbnet *dev = netdev_priv(netdev);
365 u16 res = (u16) val;
366
367 ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
368}
369
370static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
371 u16 devad)
372{
373 u16 tmp16;
374 int ret;
375
376 tmp16 = devad;
377 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
378 MII_MMD_CTRL, 2, &tmp16);
379
380 tmp16 = prtad;
381 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
382 MII_MMD_DATA, 2, &tmp16);
383
384 tmp16 = devad | MII_MMD_CTRL_NOINCR;
385 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
386 MII_MMD_CTRL, 2, &tmp16);
387
388 return ret;
389}
390
391static int
392ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
393{
394 int ret;
395 u16 tmp16;
396
397 ax88179_phy_mmd_indirect(dev, prtad, devad);
398
399 ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
400 MII_MMD_DATA, 2, &tmp16);
401 if (ret < 0)
402 return ret;
403
404 return tmp16;
405}
406
407static int
408ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
409 u16 data)
410{
411 int ret;
412
413 ax88179_phy_mmd_indirect(dev, prtad, devad);
414
415 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
416 MII_MMD_DATA, 2, &data);
417
418 if (ret < 0)
419 return ret;
420
421 return 0;
422}
423
424static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
425{
426 struct usbnet *dev = usb_get_intfdata(intf);
427 u16 tmp16;
428 u8 tmp8;
429
430 usbnet_suspend(intf, message);
431
432 /* Disable RX path */
433 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
434 2, 2, &tmp16);
435 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
436 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
437 2, 2, &tmp16);
438
439 /* Force bulk-in zero length */
440 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
441 2, 2, &tmp16);
442
443 tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
444 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
445 2, 2, &tmp16);
446
447 /* change clock */
448 tmp8 = 0;
449 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
450
451 /* Configure RX control register => stop operation */
452 tmp16 = AX_RX_CTL_STOP;
453 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
454
455 return 0;
456}
457
458/* This function is used to enable the autodetach function. */
459/* This function is determined by offset 0x43 of EEPROM */
460static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
461{
462 u16 tmp16;
463 u8 tmp8;
464 int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
465 int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
466
467 if (!in_pm) {
468 fnr = ax88179_read_cmd;
469 fnw = ax88179_write_cmd;
470 } else {
471 fnr = ax88179_read_cmd_nopm;
472 fnw = ax88179_write_cmd_nopm;
473 }
474
475 if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
476 return 0;
477
478 if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
479 return 0;
480
481 /* Enable Auto Detach bit */
482 tmp8 = 0;
483 fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
484 tmp8 |= AX_CLK_SELECT_ULR;
485 fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
486
487 fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
488 tmp16 |= AX_PHYPWR_RSTCTL_AT;
489 fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
490
491 return 0;
492}
493
494static int ax88179_resume(struct usb_interface *intf)
495{
496 struct usbnet *dev = usb_get_intfdata(intf);
497 u16 tmp16;
498 u8 tmp8;
499
500 usbnet_link_change(dev, 0, 0);
501
502 /* Power up ethernet PHY */
503 tmp16 = 0;
504 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
505 2, 2, &tmp16);
506 udelay(1000);
507
508 tmp16 = AX_PHYPWR_RSTCTL_IPRL;
509 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
510 2, 2, &tmp16);
511 msleep(200);
512
513 /* Ethernet PHY Auto Detach*/
514 ax88179_auto_detach(dev, 1);
515
516 /* Enable clock */
517 ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
518 tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
519 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
520 msleep(100);
521
522 /* Configure RX control register => start operation */
523 tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
524 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
525 ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
526
527 return usbnet_resume(intf);
528}
529
530static void
531ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
532{
533 struct usbnet *dev = netdev_priv(net);
534 u8 opt;
535
536 if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
537 1, 1, &opt) < 0) {
538 wolinfo->supported = 0;
539 wolinfo->wolopts = 0;
540 return;
541 }
542
543 wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
544 wolinfo->wolopts = 0;
545 if (opt & AX_MONITOR_MODE_RWLC)
546 wolinfo->wolopts |= WAKE_PHY;
547 if (opt & AX_MONITOR_MODE_RWMP)
548 wolinfo->wolopts |= WAKE_MAGIC;
549}
550
551static int
552ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
553{
554 struct usbnet *dev = netdev_priv(net);
555 u8 opt = 0;
556
557 if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
558 return -EINVAL;
559
560 if (wolinfo->wolopts & WAKE_PHY)
561 opt |= AX_MONITOR_MODE_RWLC;
562 if (wolinfo->wolopts & WAKE_MAGIC)
563 opt |= AX_MONITOR_MODE_RWMP;
564
565 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
566 1, 1, &opt) < 0)
567 return -EINVAL;
568
569 return 0;
570}
571
572static int ax88179_get_eeprom_len(struct net_device *net)
573{
574 return AX_EEPROM_LEN;
575}
576
577static int
578ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
579 u8 *data)
580{
581 struct usbnet *dev = netdev_priv(net);
582 u16 *eeprom_buff;
583 int first_word, last_word;
584 int i, ret;
585
586 if (eeprom->len == 0)
587 return -EINVAL;
588
589 eeprom->magic = AX88179_EEPROM_MAGIC;
590
591 first_word = eeprom->offset >> 1;
592 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
593 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
594 GFP_KERNEL);
595 if (!eeprom_buff)
596 return -ENOMEM;
597
598 /* ax88179/178A returns 2 bytes from eeprom on read */
599 for (i = first_word; i <= last_word; i++) {
600 ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
601 &eeprom_buff[i - first_word],
602 0);
603 if (ret < 0) {
604 kfree(eeprom_buff);
605 return -EIO;
606 }
607 }
608
609 memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
610 kfree(eeprom_buff);
611 return 0;
612}
613
614static int ax88179_get_link_ksettings(struct net_device *net,
615 struct ethtool_link_ksettings *cmd)
616{
617 struct usbnet *dev = netdev_priv(net);
618
619 mii_ethtool_get_link_ksettings(&dev->mii, cmd);
620
621 return 0;
622}
623
624static int ax88179_set_link_ksettings(struct net_device *net,
625 const struct ethtool_link_ksettings *cmd)
626{
627 struct usbnet *dev = netdev_priv(net);
628 return mii_ethtool_set_link_ksettings(&dev->mii, cmd);
629}
630
631static int
632ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
633{
634 int val;
635
636 /* Get Supported EEE */
637 val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
638 MDIO_MMD_PCS);
639 if (val < 0)
640 return val;
641 data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
642
643 /* Get advertisement EEE */
644 val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
645 MDIO_MMD_AN);
646 if (val < 0)
647 return val;
648 data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
649
650 /* Get LP advertisement EEE */
651 val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
652 MDIO_MMD_AN);
653 if (val < 0)
654 return val;
655 data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
656
657 return 0;
658}
659
660static int
661ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
662{
663 u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
664
665 return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
666 MDIO_MMD_AN, tmp16);
667}
668
669static int ax88179_chk_eee(struct usbnet *dev)
670{
671 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
672 struct ax88179_data *priv = (struct ax88179_data *)dev->data;
673
674 mii_ethtool_gset(&dev->mii, &ecmd);
675
676 if (ecmd.duplex & DUPLEX_FULL) {
677 int eee_lp, eee_cap, eee_adv;
678 u32 lp, cap, adv, supported = 0;
679
680 eee_cap = ax88179_phy_read_mmd_indirect(dev,
681 MDIO_PCS_EEE_ABLE,
682 MDIO_MMD_PCS);
683 if (eee_cap < 0) {
684 priv->eee_active = 0;
685 return false;
686 }
687
688 cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
689 if (!cap) {
690 priv->eee_active = 0;
691 return false;
692 }
693
694 eee_lp = ax88179_phy_read_mmd_indirect(dev,
695 MDIO_AN_EEE_LPABLE,
696 MDIO_MMD_AN);
697 if (eee_lp < 0) {
698 priv->eee_active = 0;
699 return false;
700 }
701
702 eee_adv = ax88179_phy_read_mmd_indirect(dev,
703 MDIO_AN_EEE_ADV,
704 MDIO_MMD_AN);
705
706 if (eee_adv < 0) {
707 priv->eee_active = 0;
708 return false;
709 }
710
711 adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
712 lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
713 supported = (ecmd.speed == SPEED_1000) ?
714 SUPPORTED_1000baseT_Full :
715 SUPPORTED_100baseT_Full;
716
717 if (!(lp & adv & supported)) {
718 priv->eee_active = 0;
719 return false;
720 }
721
722 priv->eee_active = 1;
723 return true;
724 }
725
726 priv->eee_active = 0;
727 return false;
728}
729
730static void ax88179_disable_eee(struct usbnet *dev)
731{
732 u16 tmp16;
733
734 tmp16 = GMII_PHY_PGSEL_PAGE3;
735 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
736 GMII_PHY_PAGE_SELECT, 2, &tmp16);
737
738 tmp16 = 0x3246;
739 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
740 MII_PHYADDR, 2, &tmp16);
741
742 tmp16 = GMII_PHY_PGSEL_PAGE0;
743 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
744 GMII_PHY_PAGE_SELECT, 2, &tmp16);
745}
746
747static void ax88179_enable_eee(struct usbnet *dev)
748{
749 u16 tmp16;
750
751 tmp16 = GMII_PHY_PGSEL_PAGE3;
752 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
753 GMII_PHY_PAGE_SELECT, 2, &tmp16);
754
755 tmp16 = 0x3247;
756 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
757 MII_PHYADDR, 2, &tmp16);
758
759 tmp16 = GMII_PHY_PGSEL_PAGE5;
760 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
761 GMII_PHY_PAGE_SELECT, 2, &tmp16);
762
763 tmp16 = 0x0680;
764 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
765 MII_BMSR, 2, &tmp16);
766
767 tmp16 = GMII_PHY_PGSEL_PAGE0;
768 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
769 GMII_PHY_PAGE_SELECT, 2, &tmp16);
770}
771
772static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
773{
774 struct usbnet *dev = netdev_priv(net);
775 struct ax88179_data *priv = (struct ax88179_data *)dev->data;
776
777 edata->eee_enabled = priv->eee_enabled;
778 edata->eee_active = priv->eee_active;
779
780 return ax88179_ethtool_get_eee(dev, edata);
781}
782
783static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
784{
785 struct usbnet *dev = netdev_priv(net);
786 struct ax88179_data *priv = (struct ax88179_data *)dev->data;
787 int ret = -EOPNOTSUPP;
788
789 priv->eee_enabled = edata->eee_enabled;
790 if (!priv->eee_enabled) {
791 ax88179_disable_eee(dev);
792 } else {
793 priv->eee_enabled = ax88179_chk_eee(dev);
794 if (!priv->eee_enabled)
795 return -EOPNOTSUPP;
796
797 ax88179_enable_eee(dev);
798 }
799
800 ret = ax88179_ethtool_set_eee(dev, edata);
801 if (ret)
802 return ret;
803
804 mii_nway_restart(&dev->mii);
805
806 usbnet_link_change(dev, 0, 0);
807
808 return ret;
809}
810
811static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
812{
813 struct usbnet *dev = netdev_priv(net);
814 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
815}
816
817static const struct ethtool_ops ax88179_ethtool_ops = {
818 .get_link = ethtool_op_get_link,
819 .get_msglevel = usbnet_get_msglevel,
820 .set_msglevel = usbnet_set_msglevel,
821 .get_wol = ax88179_get_wol,
822 .set_wol = ax88179_set_wol,
823 .get_eeprom_len = ax88179_get_eeprom_len,
824 .get_eeprom = ax88179_get_eeprom,
825 .get_eee = ax88179_get_eee,
826 .set_eee = ax88179_set_eee,
827 .nway_reset = usbnet_nway_reset,
828 .get_link_ksettings = ax88179_get_link_ksettings,
829 .set_link_ksettings = ax88179_set_link_ksettings,
830};
831
832static void ax88179_set_multicast(struct net_device *net)
833{
834 struct usbnet *dev = netdev_priv(net);
835 struct ax88179_data *data = (struct ax88179_data *)dev->data;
836 u8 *m_filter = ((u8 *)dev->data) + 12;
837
838 data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
839
840 if (net->flags & IFF_PROMISC) {
841 data->rxctl |= AX_RX_CTL_PRO;
842 } else if (net->flags & IFF_ALLMULTI ||
843 netdev_mc_count(net) > AX_MAX_MCAST) {
844 data->rxctl |= AX_RX_CTL_AMALL;
845 } else if (netdev_mc_empty(net)) {
846 /* just broadcast and directed */
847 } else {
848 /* We use the 20 byte dev->data for our 8 byte filter buffer
849 * to avoid allocating memory that is tricky to free later
850 */
851 u32 crc_bits;
852 struct netdev_hw_addr *ha;
853
854 memset(m_filter, 0, AX_MCAST_FLTSIZE);
855
856 netdev_for_each_mc_addr(ha, net) {
857 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
858 *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
859 }
860
861 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
862 AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
863 m_filter);
864
865 data->rxctl |= AX_RX_CTL_AM;
866 }
867
868 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
869 2, 2, &data->rxctl);
870}
871
872static int
873ax88179_set_features(struct net_device *net, netdev_features_t features)
874{
875 u8 tmp;
876 struct usbnet *dev = netdev_priv(net);
877 netdev_features_t changed = net->features ^ features;
878
879 if (changed & NETIF_F_IP_CSUM) {
880 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
881 tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
882 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
883 }
884
885 if (changed & NETIF_F_IPV6_CSUM) {
886 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
887 tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
888 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
889 }
890
891 if (changed & NETIF_F_RXCSUM) {
892 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
893 tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
894 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
895 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
896 }
897
898 return 0;
899}
900
901static int ax88179_change_mtu(struct net_device *net, int new_mtu)
902{
903 struct usbnet *dev = netdev_priv(net);
904 u16 tmp16;
905
906 net->mtu = new_mtu;
907 dev->hard_mtu = net->mtu + net->hard_header_len;
908
909 if (net->mtu > 1500) {
910 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
911 2, 2, &tmp16);
912 tmp16 |= AX_MEDIUM_JUMBO_EN;
913 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
914 2, 2, &tmp16);
915 } else {
916 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
917 2, 2, &tmp16);
918 tmp16 &= ~AX_MEDIUM_JUMBO_EN;
919 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
920 2, 2, &tmp16);
921 }
922
923 /* max qlen depend on hard_mtu and rx_urb_size */
924 usbnet_update_max_qlen(dev);
925
926 return 0;
927}
928
929static int ax88179_set_mac_addr(struct net_device *net, void *p)
930{
931 struct usbnet *dev = netdev_priv(net);
932 struct sockaddr *addr = p;
933 int ret;
934
935 if (netif_running(net))
936 return -EBUSY;
937 if (!is_valid_ether_addr(addr->sa_data))
938 return -EADDRNOTAVAIL;
939
940 memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
941
942 /* Set the MAC address */
943 ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
944 ETH_ALEN, net->dev_addr);
945 if (ret < 0)
946 return ret;
947
948 return 0;
949}
950
951static const struct net_device_ops ax88179_netdev_ops = {
952 .ndo_open = usbnet_open,
953 .ndo_stop = usbnet_stop,
954 .ndo_start_xmit = usbnet_start_xmit,
955 .ndo_tx_timeout = usbnet_tx_timeout,
956 .ndo_get_stats64 = usbnet_get_stats64,
957 .ndo_change_mtu = ax88179_change_mtu,
958 .ndo_set_mac_address = ax88179_set_mac_addr,
959 .ndo_validate_addr = eth_validate_addr,
960 .ndo_do_ioctl = ax88179_ioctl,
961 .ndo_set_rx_mode = ax88179_set_multicast,
962 .ndo_set_features = ax88179_set_features,
963};
964
965static int ax88179_check_eeprom(struct usbnet *dev)
966{
967 u8 i, buf, eeprom[20];
968 u16 csum, delay = HZ / 10;
969 unsigned long jtimeout;
970
971 /* Read EEPROM content */
972 for (i = 0; i < 6; i++) {
973 buf = i;
974 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
975 1, 1, &buf) < 0)
976 return -EINVAL;
977
978 buf = EEP_RD;
979 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
980 1, 1, &buf) < 0)
981 return -EINVAL;
982
983 jtimeout = jiffies + delay;
984 do {
985 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
986 1, 1, &buf);
987
988 if (time_after(jiffies, jtimeout))
989 return -EINVAL;
990
991 } while (buf & EEP_BUSY);
992
993 __ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
994 2, 2, &eeprom[i * 2], 0);
995
996 if ((i == 0) && (eeprom[0] == 0xFF))
997 return -EINVAL;
998 }
999
1000 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
1001 csum = (csum >> 8) + (csum & 0xff);
1002 if ((csum + eeprom[10]) != 0xff)
1003 return -EINVAL;
1004
1005 return 0;
1006}
1007
1008static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
1009{
1010 u8 i;
1011 u8 efuse[64];
1012 u16 csum = 0;
1013
1014 if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
1015 return -EINVAL;
1016
1017 if (*efuse == 0xFF)
1018 return -EINVAL;
1019
1020 for (i = 0; i < 64; i++)
1021 csum = csum + efuse[i];
1022
1023 while (csum > 255)
1024 csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
1025
1026 if (csum != 0xFF)
1027 return -EINVAL;
1028
1029 *ledmode = (efuse[51] << 8) | efuse[52];
1030
1031 return 0;
1032}
1033
1034static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
1035{
1036 u16 led;
1037
1038 /* Loaded the old eFuse LED Mode */
1039 if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
1040 return -EINVAL;
1041
1042 led >>= 8;
1043 switch (led) {
1044 case 0xFF:
1045 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1046 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1047 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1048 break;
1049 case 0xFE:
1050 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
1051 break;
1052 case 0xFD:
1053 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
1054 LED2_LINK_10 | LED_VALID;
1055 break;
1056 case 0xFC:
1057 led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
1058 LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
1059 break;
1060 default:
1061 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1062 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1063 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1064 break;
1065 }
1066
1067 *ledvalue = led;
1068
1069 return 0;
1070}
1071
1072static int ax88179_led_setting(struct usbnet *dev)
1073{
1074 u8 ledfd, value = 0;
1075 u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
1076 unsigned long jtimeout;
1077
1078 /* Check AX88179 version. UA1 or UA2*/
1079 ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
1080
1081 if (!(value & AX_SECLD)) { /* UA1 */
1082 value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
1083 AX_GPIO_CTRL_GPIO1EN;
1084 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
1085 1, 1, &value) < 0)
1086 return -EINVAL;
1087 }
1088
1089 /* Check EEPROM */
1090 if (!ax88179_check_eeprom(dev)) {
1091 value = 0x42;
1092 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1093 1, 1, &value) < 0)
1094 return -EINVAL;
1095
1096 value = EEP_RD;
1097 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1098 1, 1, &value) < 0)
1099 return -EINVAL;
1100
1101 jtimeout = jiffies + delay;
1102 do {
1103 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1104 1, 1, &value);
1105
1106 if (time_after(jiffies, jtimeout))
1107 return -EINVAL;
1108
1109 } while (value & EEP_BUSY);
1110
1111 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
1112 1, 1, &value);
1113 ledvalue = (value << 8);
1114
1115 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1116 1, 1, &value);
1117 ledvalue |= value;
1118
1119 /* load internal ROM for defaule setting */
1120 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1121 ax88179_convert_old_led(dev, &ledvalue);
1122
1123 } else if (!ax88179_check_efuse(dev, &ledvalue)) {
1124 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1125 ax88179_convert_old_led(dev, &ledvalue);
1126 } else {
1127 ax88179_convert_old_led(dev, &ledvalue);
1128 }
1129
1130 tmp = GMII_PHY_PGSEL_EXT;
1131 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1132 GMII_PHY_PAGE_SELECT, 2, &tmp);
1133
1134 tmp = 0x2c;
1135 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1136 GMII_PHYPAGE, 2, &tmp);
1137
1138 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1139 GMII_LED_ACT, 2, &ledact);
1140
1141 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1142 GMII_LED_LINK, 2, &ledlink);
1143
1144 ledact &= GMII_LED_ACTIVE_MASK;
1145 ledlink &= GMII_LED_LINK_MASK;
1146
1147 if (ledvalue & LED0_ACTIVE)
1148 ledact |= GMII_LED0_ACTIVE;
1149
1150 if (ledvalue & LED1_ACTIVE)
1151 ledact |= GMII_LED1_ACTIVE;
1152
1153 if (ledvalue & LED2_ACTIVE)
1154 ledact |= GMII_LED2_ACTIVE;
1155
1156 if (ledvalue & LED0_LINK_10)
1157 ledlink |= GMII_LED0_LINK_10;
1158
1159 if (ledvalue & LED1_LINK_10)
1160 ledlink |= GMII_LED1_LINK_10;
1161
1162 if (ledvalue & LED2_LINK_10)
1163 ledlink |= GMII_LED2_LINK_10;
1164
1165 if (ledvalue & LED0_LINK_100)
1166 ledlink |= GMII_LED0_LINK_100;
1167
1168 if (ledvalue & LED1_LINK_100)
1169 ledlink |= GMII_LED1_LINK_100;
1170
1171 if (ledvalue & LED2_LINK_100)
1172 ledlink |= GMII_LED2_LINK_100;
1173
1174 if (ledvalue & LED0_LINK_1000)
1175 ledlink |= GMII_LED0_LINK_1000;
1176
1177 if (ledvalue & LED1_LINK_1000)
1178 ledlink |= GMII_LED1_LINK_1000;
1179
1180 if (ledvalue & LED2_LINK_1000)
1181 ledlink |= GMII_LED2_LINK_1000;
1182
1183 tmp = ledact;
1184 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1185 GMII_LED_ACT, 2, &tmp);
1186
1187 tmp = ledlink;
1188 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1189 GMII_LED_LINK, 2, &tmp);
1190
1191 tmp = GMII_PHY_PGSEL_PAGE0;
1192 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1193 GMII_PHY_PAGE_SELECT, 2, &tmp);
1194
1195 /* LED full duplex setting */
1196 ledfd = 0;
1197 if (ledvalue & LED0_FD)
1198 ledfd |= 0x01;
1199 else if ((ledvalue & LED0_USB3_MASK) == 0)
1200 ledfd |= 0x02;
1201
1202 if (ledvalue & LED1_FD)
1203 ledfd |= 0x04;
1204 else if ((ledvalue & LED1_USB3_MASK) == 0)
1205 ledfd |= 0x08;
1206
1207 if (ledvalue & LED2_FD)
1208 ledfd |= 0x10;
1209 else if ((ledvalue & LED2_USB3_MASK) == 0)
1210 ledfd |= 0x20;
1211
1212 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
1213
1214 return 0;
1215}
1216
1217static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
1218{
1219 u8 buf[5];
1220 u16 *tmp16;
1221 u8 *tmp;
1222 struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1223 struct ethtool_eee eee_data;
1224
1225 usbnet_get_endpoints(dev, intf);
1226
1227 tmp16 = (u16 *)buf;
1228 tmp = (u8 *)buf;
1229
1230 memset(ax179_data, 0, sizeof(*ax179_data));
1231
1232 /* Power up ethernet PHY */
1233 *tmp16 = 0;
1234 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1235 *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1236 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1237 msleep(200);
1238
1239 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1240 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1241 msleep(100);
1242
1243 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1244 ETH_ALEN, dev->net->dev_addr);
1245 memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1246
1247 /* RX bulk configuration */
1248 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1249 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1250
1251 dev->rx_urb_size = 1024 * 20;
1252
1253 *tmp = 0x34;
1254 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1255
1256 *tmp = 0x52;
1257 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1258 1, 1, tmp);
1259
1260 dev->net->netdev_ops = &ax88179_netdev_ops;
1261 dev->net->ethtool_ops = &ax88179_ethtool_ops;
1262 dev->net->needed_headroom = 8;
1263 dev->net->max_mtu = 4088;
1264
1265 /* Initialize MII structure */
1266 dev->mii.dev = dev->net;
1267 dev->mii.mdio_read = ax88179_mdio_read;
1268 dev->mii.mdio_write = ax88179_mdio_write;
1269 dev->mii.phy_id_mask = 0xff;
1270 dev->mii.reg_num_mask = 0xff;
1271 dev->mii.phy_id = 0x03;
1272 dev->mii.supports_gmii = 1;
1273
1274 dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1275 NETIF_F_RXCSUM;
1276
1277 dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1278 NETIF_F_RXCSUM;
1279
1280 /* Enable checksum offload */
1281 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1282 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1283 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1284
1285 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1286 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1287 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1288
1289 /* Configure RX control register => start operation */
1290 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1291 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1292 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1293
1294 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1295 AX_MONITOR_MODE_RWMP;
1296 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1297
1298 /* Configure default medium type => giga */
1299 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1300 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1301 AX_MEDIUM_GIGAMODE;
1302 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1303 2, 2, tmp16);
1304
1305 ax88179_led_setting(dev);
1306
1307 ax179_data->eee_enabled = 0;
1308 ax179_data->eee_active = 0;
1309
1310 ax88179_disable_eee(dev);
1311
1312 ax88179_ethtool_get_eee(dev, &eee_data);
1313 eee_data.advertised = 0;
1314 ax88179_ethtool_set_eee(dev, &eee_data);
1315
1316 /* Restart autoneg */
1317 mii_nway_restart(&dev->mii);
1318
1319 usbnet_link_change(dev, 0, 0);
1320
1321 return 0;
1322}
1323
1324static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
1325{
1326 u16 tmp16;
1327
1328 /* Configure RX control register => stop operation */
1329 tmp16 = AX_RX_CTL_STOP;
1330 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
1331
1332 tmp16 = 0;
1333 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
1334
1335 /* Power down ethernet PHY */
1336 tmp16 = 0;
1337 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
1338}
1339
1340static void
1341ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
1342{
1343 skb->ip_summed = CHECKSUM_NONE;
1344
1345 /* checksum error bit is set */
1346 if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
1347 (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
1348 return;
1349
1350 /* It must be a TCP or UDP packet with a valid checksum */
1351 if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
1352 ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
1353 skb->ip_summed = CHECKSUM_UNNECESSARY;
1354}
1355
1356static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1357{
1358 struct sk_buff *ax_skb;
1359 int pkt_cnt;
1360 u32 rx_hdr;
1361 u16 hdr_off;
1362 u32 *pkt_hdr;
1363
1364 /* This check is no longer done by usbnet */
1365 if (skb->len < dev->net->hard_header_len)
1366 return 0;
1367
1368 skb_trim(skb, skb->len - 4);
1369 rx_hdr = get_unaligned_le32(skb_tail_pointer(skb));
1370
1371 pkt_cnt = (u16)rx_hdr;
1372 hdr_off = (u16)(rx_hdr >> 16);
1373 pkt_hdr = (u32 *)(skb->data + hdr_off);
1374
1375 while (pkt_cnt--) {
1376 u16 pkt_len;
1377
1378 le32_to_cpus(pkt_hdr);
1379 pkt_len = (*pkt_hdr >> 16) & 0x1fff;
1380
1381 /* Check CRC or runt packet */
1382 if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
1383 (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
1384 skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1385 pkt_hdr++;
1386 continue;
1387 }
1388
1389 if (pkt_cnt == 0) {
1390 /* Skip IP alignment psudo header */
1391 skb_pull(skb, 2);
1392 skb->len = pkt_len;
1393 skb_set_tail_pointer(skb, pkt_len);
1394 skb->truesize = pkt_len + sizeof(struct sk_buff);
1395 ax88179_rx_checksum(skb, pkt_hdr);
1396 return 1;
1397 }
1398
1399 ax_skb = skb_clone(skb, GFP_ATOMIC);
1400 if (ax_skb) {
1401 ax_skb->len = pkt_len;
1402 ax_skb->data = skb->data + 2;
1403 skb_set_tail_pointer(ax_skb, pkt_len);
1404 ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
1405 ax88179_rx_checksum(ax_skb, pkt_hdr);
1406 usbnet_skb_return(dev, ax_skb);
1407 } else {
1408 return 0;
1409 }
1410
1411 skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1412 pkt_hdr++;
1413 }
1414 return 1;
1415}
1416
1417static struct sk_buff *
1418ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
1419{
1420 u32 tx_hdr1, tx_hdr2;
1421 int frame_size = dev->maxpacket;
1422 int mss = skb_shinfo(skb)->gso_size;
1423 int headroom;
1424 void *ptr;
1425
1426 tx_hdr1 = skb->len;
1427 tx_hdr2 = mss;
1428 if (((skb->len + 8) % frame_size) == 0)
1429 tx_hdr2 |= 0x80008000; /* Enable padding */
1430
1431 headroom = skb_headroom(skb) - 8;
1432
1433 if ((skb_header_cloned(skb) || headroom < 0) &&
1434 pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
1435 dev_kfree_skb_any(skb);
1436 return NULL;
1437 }
1438
1439 ptr = skb_push(skb, 8);
1440 put_unaligned_le32(tx_hdr1, ptr);
1441 put_unaligned_le32(tx_hdr2, ptr + 4);
1442
1443 return skb;
1444}
1445
1446static int ax88179_link_reset(struct usbnet *dev)
1447{
1448 struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1449 u8 tmp[5], link_sts;
1450 u16 mode, tmp16, delay = HZ / 10;
1451 u32 tmp32 = 0x40000000;
1452 unsigned long jtimeout;
1453
1454 jtimeout = jiffies + delay;
1455 while (tmp32 & 0x40000000) {
1456 mode = 0;
1457 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
1458 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
1459 &ax179_data->rxctl);
1460
1461 /*link up, check the usb device control TX FIFO full or empty*/
1462 ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
1463
1464 if (time_after(jiffies, jtimeout))
1465 return 0;
1466 }
1467
1468 mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1469 AX_MEDIUM_RXFLOW_CTRLEN;
1470
1471 ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
1472 1, 1, &link_sts);
1473
1474 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1475 GMII_PHY_PHYSR, 2, &tmp16);
1476
1477 if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
1478 return 0;
1479 } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1480 mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
1481 if (dev->net->mtu > 1500)
1482 mode |= AX_MEDIUM_JUMBO_EN;
1483
1484 if (link_sts & AX_USB_SS)
1485 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1486 else if (link_sts & AX_USB_HS)
1487 memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
1488 else
1489 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1490 } else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1491 mode |= AX_MEDIUM_PS;
1492
1493 if (link_sts & (AX_USB_SS | AX_USB_HS))
1494 memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
1495 else
1496 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1497 } else {
1498 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1499 }
1500
1501 /* RX bulk configuration */
1502 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1503
1504 dev->rx_urb_size = (1024 * (tmp[3] + 2));
1505
1506 if (tmp16 & GMII_PHY_PHYSR_FULL)
1507 mode |= AX_MEDIUM_FULL_DUPLEX;
1508 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1509 2, 2, &mode);
1510
1511 ax179_data->eee_enabled = ax88179_chk_eee(dev);
1512
1513 netif_carrier_on(dev->net);
1514
1515 return 0;
1516}
1517
1518static int ax88179_reset(struct usbnet *dev)
1519{
1520 u8 buf[5];
1521 u16 *tmp16;
1522 u8 *tmp;
1523 struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1524 struct ethtool_eee eee_data;
1525
1526 tmp16 = (u16 *)buf;
1527 tmp = (u8 *)buf;
1528
1529 /* Power up ethernet PHY */
1530 *tmp16 = 0;
1531 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1532
1533 *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1534 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1535 msleep(200);
1536
1537 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1538 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1539 msleep(100);
1540
1541 /* Ethernet PHY Auto Detach*/
1542 ax88179_auto_detach(dev, 0);
1543
1544 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
1545 dev->net->dev_addr);
1546
1547 /* RX bulk configuration */
1548 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1549 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1550
1551 dev->rx_urb_size = 1024 * 20;
1552
1553 *tmp = 0x34;
1554 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1555
1556 *tmp = 0x52;
1557 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1558 1, 1, tmp);
1559
1560 dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1561 NETIF_F_RXCSUM;
1562
1563 dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1564 NETIF_F_RXCSUM;
1565
1566 /* Enable checksum offload */
1567 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1568 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1569 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1570
1571 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1572 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1573 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1574
1575 /* Configure RX control register => start operation */
1576 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1577 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1578 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1579
1580 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1581 AX_MONITOR_MODE_RWMP;
1582 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1583
1584 /* Configure default medium type => giga */
1585 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1586 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1587 AX_MEDIUM_GIGAMODE;
1588 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1589 2, 2, tmp16);
1590
1591 ax88179_led_setting(dev);
1592
1593 ax179_data->eee_enabled = 0;
1594 ax179_data->eee_active = 0;
1595
1596 ax88179_disable_eee(dev);
1597
1598 ax88179_ethtool_get_eee(dev, &eee_data);
1599 eee_data.advertised = 0;
1600 ax88179_ethtool_set_eee(dev, &eee_data);
1601
1602 /* Restart autoneg */
1603 mii_nway_restart(&dev->mii);
1604
1605 usbnet_link_change(dev, 0, 0);
1606
1607 return 0;
1608}
1609
1610static int ax88179_stop(struct usbnet *dev)
1611{
1612 u16 tmp16;
1613
1614 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1615 2, 2, &tmp16);
1616 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
1617 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1618 2, 2, &tmp16);
1619
1620 return 0;
1621}
1622
1623static const struct driver_info ax88179_info = {
1624 .description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
1625 .bind = ax88179_bind,
1626 .unbind = ax88179_unbind,
1627 .status = ax88179_status,
1628 .link_reset = ax88179_link_reset,
1629 .reset = ax88179_reset,
1630 .stop = ax88179_stop,
1631 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1632 .rx_fixup = ax88179_rx_fixup,
1633 .tx_fixup = ax88179_tx_fixup,
1634};
1635
1636static const struct driver_info ax88178a_info = {
1637 .description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
1638 .bind = ax88179_bind,
1639 .unbind = ax88179_unbind,
1640 .status = ax88179_status,
1641 .link_reset = ax88179_link_reset,
1642 .reset = ax88179_reset,
1643 .stop = ax88179_stop,
1644 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1645 .rx_fixup = ax88179_rx_fixup,
1646 .tx_fixup = ax88179_tx_fixup,
1647};
1648
1649static const struct driver_info cypress_GX3_info = {
1650 .description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller",
1651 .bind = ax88179_bind,
1652 .unbind = ax88179_unbind,
1653 .status = ax88179_status,
1654 .link_reset = ax88179_link_reset,
1655 .reset = ax88179_reset,
1656 .stop = ax88179_stop,
1657 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1658 .rx_fixup = ax88179_rx_fixup,
1659 .tx_fixup = ax88179_tx_fixup,
1660};
1661
1662static const struct driver_info dlink_dub1312_info = {
1663 .description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
1664 .bind = ax88179_bind,
1665 .unbind = ax88179_unbind,
1666 .status = ax88179_status,
1667 .link_reset = ax88179_link_reset,
1668 .reset = ax88179_reset,
1669 .stop = ax88179_stop,
1670 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1671 .rx_fixup = ax88179_rx_fixup,
1672 .tx_fixup = ax88179_tx_fixup,
1673};
1674
1675static const struct driver_info sitecom_info = {
1676 .description = "Sitecom USB 3.0 to Gigabit Adapter",
1677 .bind = ax88179_bind,
1678 .unbind = ax88179_unbind,
1679 .status = ax88179_status,
1680 .link_reset = ax88179_link_reset,
1681 .reset = ax88179_reset,
1682 .stop = ax88179_stop,
1683 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1684 .rx_fixup = ax88179_rx_fixup,
1685 .tx_fixup = ax88179_tx_fixup,
1686};
1687
1688static const struct driver_info samsung_info = {
1689 .description = "Samsung USB Ethernet Adapter",
1690 .bind = ax88179_bind,
1691 .unbind = ax88179_unbind,
1692 .status = ax88179_status,
1693 .link_reset = ax88179_link_reset,
1694 .reset = ax88179_reset,
1695 .stop = ax88179_stop,
1696 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1697 .rx_fixup = ax88179_rx_fixup,
1698 .tx_fixup = ax88179_tx_fixup,
1699};
1700
1701static const struct driver_info lenovo_info = {
1702 .description = "Lenovo OneLinkDock Gigabit LAN",
1703 .bind = ax88179_bind,
1704 .unbind = ax88179_unbind,
1705 .status = ax88179_status,
1706 .link_reset = ax88179_link_reset,
1707 .reset = ax88179_reset,
1708 .stop = ax88179_stop,
1709 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1710 .rx_fixup = ax88179_rx_fixup,
1711 .tx_fixup = ax88179_tx_fixup,
1712};
1713
1714static const struct driver_info belkin_info = {
1715 .description = "Belkin USB Ethernet Adapter",
1716 .bind = ax88179_bind,
1717 .unbind = ax88179_unbind,
1718 .status = ax88179_status,
1719 .link_reset = ax88179_link_reset,
1720 .reset = ax88179_reset,
1721 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1722 .rx_fixup = ax88179_rx_fixup,
1723 .tx_fixup = ax88179_tx_fixup,
1724};
1725
1726static const struct usb_device_id products[] = {
1727{
1728 /* ASIX AX88179 10/100/1000 */
1729 USB_DEVICE(0x0b95, 0x1790),
1730 .driver_info = (unsigned long)&ax88179_info,
1731}, {
1732 /* ASIX AX88178A 10/100/1000 */
1733 USB_DEVICE(0x0b95, 0x178a),
1734 .driver_info = (unsigned long)&ax88178a_info,
1735}, {
1736 /* Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller */
1737 USB_DEVICE(0x04b4, 0x3610),
1738 .driver_info = (unsigned long)&cypress_GX3_info,
1739}, {
1740 /* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
1741 USB_DEVICE(0x2001, 0x4a00),
1742 .driver_info = (unsigned long)&dlink_dub1312_info,
1743}, {
1744 /* Sitecom USB 3.0 to Gigabit Adapter */
1745 USB_DEVICE(0x0df6, 0x0072),
1746 .driver_info = (unsigned long)&sitecom_info,
1747}, {
1748 /* Samsung USB Ethernet Adapter */
1749 USB_DEVICE(0x04e8, 0xa100),
1750 .driver_info = (unsigned long)&samsung_info,
1751}, {
1752 /* Lenovo OneLinkDock Gigabit LAN */
1753 USB_DEVICE(0x17ef, 0x304b),
1754 .driver_info = (unsigned long)&lenovo_info,
1755}, {
1756 /* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */
1757 USB_DEVICE(0x050d, 0x0128),
1758 .driver_info = (unsigned long)&belkin_info,
1759},
1760 { },
1761};
1762MODULE_DEVICE_TABLE(usb, products);
1763
1764static struct usb_driver ax88179_178a_driver = {
1765 .name = "ax88179_178a",
1766 .id_table = products,
1767 .probe = usbnet_probe,
1768 .suspend = ax88179_suspend,
1769 .resume = ax88179_resume,
1770 .reset_resume = ax88179_resume,
1771 .disconnect = usbnet_disconnect,
1772 .supports_autosuspend = 1,
1773 .disable_hub_initiated_lpm = 1,
1774};
1775
1776module_usb_driver(ax88179_178a_driver);
1777
1778MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
1779MODULE_LICENSE("GPL");