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_RELOAD_EEPROM_EFUSE 0x06
35 #define AX_PAUSE_WATERLVL_HIGH 0x54
36 #define AX_PAUSE_WATERLVL_LOW 0x55
37
38 #define PHYSICAL_LINK_STATUS 0x02
39 #define AX_USB_SS 0x04
40 #define AX_USB_HS 0x02
41
42 #define GENERAL_STATUS 0x03
43 /* Check AX88179 version. UA1:Bit2 = 0, UA2:Bit2 = 1 */
44 #define AX_SECLD 0x04
45
46 #define AX_SROM_ADDR 0x07
47 #define AX_SROM_CMD 0x0a
48 #define EEP_RD 0x04
49 #define EEP_BUSY 0x10
50
51 #define AX_SROM_DATA_LOW 0x08
52 #define AX_SROM_DATA_HIGH 0x09
53
54 #define AX_RX_CTL 0x0b
55 #define AX_RX_CTL_DROPCRCERR 0x0100
56 #define AX_RX_CTL_IPE 0x0200
57 #define AX_RX_CTL_START 0x0080
58 #define AX_RX_CTL_AP 0x0020
59 #define AX_RX_CTL_AM 0x0010
60 #define AX_RX_CTL_AB 0x0008
61 #define AX_RX_CTL_AMALL 0x0002
62 #define AX_RX_CTL_PRO 0x0001
63 #define AX_RX_CTL_STOP 0x0000
64
65 #define AX_NODE_ID 0x10
66 #define AX_MULFLTARY 0x16
67
68 #define AX_MEDIUM_STATUS_MODE 0x22
69 #define AX_MEDIUM_GIGAMODE 0x01
70 #define AX_MEDIUM_FULL_DUPLEX 0x02
71 #define AX_MEDIUM_EN_125MHZ 0x08
72 #define AX_MEDIUM_RXFLOW_CTRLEN 0x10
73 #define AX_MEDIUM_TXFLOW_CTRLEN 0x20
74 #define AX_MEDIUM_RECEIVE_EN 0x100
75 #define AX_MEDIUM_PS 0x200
76 #define AX_MEDIUM_JUMBO_EN 0x8040
77
78 #define AX_MONITOR_MOD 0x24
79 #define AX_MONITOR_MODE_RWLC 0x02
80 #define AX_MONITOR_MODE_RWMP 0x04
81 #define AX_MONITOR_MODE_PMEPOL 0x20
82 #define AX_MONITOR_MODE_PMETYPE 0x40
83
84 #define AX_GPIO_CTRL 0x25
85 #define AX_GPIO_CTRL_GPIO3EN 0x80
86 #define AX_GPIO_CTRL_GPIO2EN 0x40
87 #define AX_GPIO_CTRL_GPIO1EN 0x20
88
89 #define AX_PHYPWR_RSTCTL 0x26
90 #define AX_PHYPWR_RSTCTL_BZ 0x0010
91 #define AX_PHYPWR_RSTCTL_IPRL 0x0020
92 #define AX_PHYPWR_RSTCTL_AT 0x1000
93
94 #define AX_RX_BULKIN_QCTRL 0x2e
95 #define AX_CLK_SELECT 0x33
96 #define AX_CLK_SELECT_BCS 0x01
97 #define AX_CLK_SELECT_ACS 0x02
98 #define AX_CLK_SELECT_ULR 0x08
99
100 #define AX_RXCOE_CTL 0x34
101 #define AX_RXCOE_IP 0x01
102 #define AX_RXCOE_TCP 0x02
103 #define AX_RXCOE_UDP 0x04
104 #define AX_RXCOE_TCPV6 0x20
105 #define AX_RXCOE_UDPV6 0x40
106
107 #define AX_TXCOE_CTL 0x35
108 #define AX_TXCOE_IP 0x01
109 #define AX_TXCOE_TCP 0x02
110 #define AX_TXCOE_UDP 0x04
111 #define AX_TXCOE_TCPV6 0x20
112 #define AX_TXCOE_UDPV6 0x40
113
114 #define AX_LEDCTRL 0x73
115
116 #define GMII_PHY_PHYSR 0x11
117 #define GMII_PHY_PHYSR_SMASK 0xc000
118 #define GMII_PHY_PHYSR_GIGA 0x8000
119 #define GMII_PHY_PHYSR_100 0x4000
120 #define GMII_PHY_PHYSR_FULL 0x2000
121 #define GMII_PHY_PHYSR_LINK 0x400
122
123 #define GMII_LED_ACT 0x1a
124 #define GMII_LED_ACTIVE_MASK 0xff8f
125 #define GMII_LED0_ACTIVE BIT(4)
126 #define GMII_LED1_ACTIVE BIT(5)
127 #define GMII_LED2_ACTIVE BIT(6)
128
129 #define GMII_LED_LINK 0x1c
130 #define GMII_LED_LINK_MASK 0xf888
131 #define GMII_LED0_LINK_10 BIT(0)
132 #define GMII_LED0_LINK_100 BIT(1)
133 #define GMII_LED0_LINK_1000 BIT(2)
134 #define GMII_LED1_LINK_10 BIT(4)
135 #define GMII_LED1_LINK_100 BIT(5)
136 #define GMII_LED1_LINK_1000 BIT(6)
137 #define GMII_LED2_LINK_10 BIT(8)
138 #define GMII_LED2_LINK_100 BIT(9)
139 #define GMII_LED2_LINK_1000 BIT(10)
140 #define LED0_ACTIVE BIT(0)
141 #define LED0_LINK_10 BIT(1)
142 #define LED0_LINK_100 BIT(2)
143 #define LED0_LINK_1000 BIT(3)
144 #define LED0_FD BIT(4)
145 #define LED0_USB3_MASK 0x001f
146 #define LED1_ACTIVE BIT(5)
147 #define LED1_LINK_10 BIT(6)
148 #define LED1_LINK_100 BIT(7)
149 #define LED1_LINK_1000 BIT(8)
150 #define LED1_FD BIT(9)
151 #define LED1_USB3_MASK 0x03e0
152 #define LED2_ACTIVE BIT(10)
153 #define LED2_LINK_1000 BIT(13)
154 #define LED2_LINK_100 BIT(12)
155 #define LED2_LINK_10 BIT(11)
156 #define LED2_FD BIT(14)
157 #define LED_VALID BIT(15)
158 #define LED2_USB3_MASK 0x7c00
159
160 #define GMII_PHYPAGE 0x1e
161 #define GMII_PHY_PAGE_SELECT 0x1f
162 #define GMII_PHY_PGSEL_EXT 0x0007
163 #define GMII_PHY_PGSEL_PAGE0 0x0000
164 #define GMII_PHY_PGSEL_PAGE3 0x0003
165 #define GMII_PHY_PGSEL_PAGE5 0x0005
166
167 static int ax88179_reset(struct usbnet *dev);
168
169 struct ax88179_data {
170 u8 eee_enabled;
171 u8 eee_active;
172 u16 rxctl;
173 u8 in_pm;
174 u32 wol_supported;
175 u32 wolopts;
176 u8 disconnecting;
177 };
178
179 struct ax88179_int_data {
180 __le32 intdata1;
181 __le32 intdata2;
182 };
183
184 static 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
ax88179_set_pm_mode(struct usbnet * dev,bool pm_mode)193 static void ax88179_set_pm_mode(struct usbnet *dev, bool pm_mode)
194 {
195 struct ax88179_data *ax179_data = dev->driver_priv;
196
197 ax179_data->in_pm = pm_mode;
198 }
199
ax88179_in_pm(struct usbnet * dev)200 static int ax88179_in_pm(struct usbnet *dev)
201 {
202 struct ax88179_data *ax179_data = dev->driver_priv;
203
204 return ax179_data->in_pm;
205 }
206
__ax88179_read_cmd(struct usbnet * dev,u8 cmd,u16 value,u16 index,u16 size,void * data)207 static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
208 u16 size, void *data)
209 {
210 int ret;
211 int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
212 struct ax88179_data *ax179_data = dev->driver_priv;
213
214 BUG_ON(!dev);
215
216 if (!ax88179_in_pm(dev))
217 fn = usbnet_read_cmd;
218 else
219 fn = usbnet_read_cmd_nopm;
220
221 ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
222 value, index, data, size);
223
224 if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
225 netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
226 index, ret);
227
228 return ret;
229 }
230
__ax88179_write_cmd(struct usbnet * dev,u8 cmd,u16 value,u16 index,u16 size,const void * data)231 static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
232 u16 size, const void *data)
233 {
234 int ret;
235 int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
236 struct ax88179_data *ax179_data = dev->driver_priv;
237
238 BUG_ON(!dev);
239
240 if (!ax88179_in_pm(dev))
241 fn = usbnet_write_cmd;
242 else
243 fn = usbnet_write_cmd_nopm;
244
245 ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
246 value, index, data, size);
247
248 if (unlikely((ret < 0) && !(ret == -ENODEV && ax179_data->disconnecting)))
249 netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
250 index, ret);
251
252 return ret;
253 }
254
ax88179_write_cmd_async(struct usbnet * dev,u8 cmd,u16 value,u16 index,u16 size,void * data)255 static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
256 u16 index, u16 size, void *data)
257 {
258 u16 buf;
259
260 if (2 == size) {
261 buf = *((u16 *)data);
262 cpu_to_le16s(&buf);
263 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
264 USB_RECIP_DEVICE, value, index, &buf,
265 size);
266 } else {
267 usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
268 USB_RECIP_DEVICE, value, index, data,
269 size);
270 }
271 }
272
ax88179_read_cmd(struct usbnet * dev,u8 cmd,u16 value,u16 index,u16 size,void * data)273 static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
274 u16 size, void *data)
275 {
276 int ret;
277
278 if (2 == size) {
279 u16 buf = 0;
280 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
281 le16_to_cpus(&buf);
282 *((u16 *)data) = buf;
283 } else if (4 == size) {
284 u32 buf = 0;
285 ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf);
286 le32_to_cpus(&buf);
287 *((u32 *)data) = buf;
288 } else {
289 ret = __ax88179_read_cmd(dev, cmd, value, index, size, data);
290 }
291
292 return ret;
293 }
294
ax88179_write_cmd(struct usbnet * dev,u8 cmd,u16 value,u16 index,u16 size,const void * data)295 static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
296 u16 size, const void *data)
297 {
298 int ret;
299
300 if (2 == size) {
301 u16 buf;
302 buf = *((u16 *)data);
303 cpu_to_le16s(&buf);
304 ret = __ax88179_write_cmd(dev, cmd, value, index,
305 size, &buf);
306 } else {
307 ret = __ax88179_write_cmd(dev, cmd, value, index,
308 size, data);
309 }
310
311 return ret;
312 }
313
ax88179_status(struct usbnet * dev,struct urb * urb)314 static void ax88179_status(struct usbnet *dev, struct urb *urb)
315 {
316 struct ax88179_int_data *event;
317 u32 link;
318
319 if (urb->actual_length < 8)
320 return;
321
322 event = urb->transfer_buffer;
323 le32_to_cpus((void *)&event->intdata1);
324
325 link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
326
327 if (netif_carrier_ok(dev->net) != link) {
328 usbnet_link_change(dev, link, 1);
329 if (!link)
330 netdev_info(dev->net, "ax88179 - Link status is: 0\n");
331 }
332 }
333
ax88179_mdio_read(struct net_device * netdev,int phy_id,int loc)334 static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
335 {
336 struct usbnet *dev = netdev_priv(netdev);
337 u16 res;
338
339 ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
340 return res;
341 }
342
ax88179_mdio_write(struct net_device * netdev,int phy_id,int loc,int val)343 static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
344 int val)
345 {
346 struct usbnet *dev = netdev_priv(netdev);
347 u16 res = (u16) val;
348
349 ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
350 }
351
ax88179_phy_mmd_indirect(struct usbnet * dev,u16 prtad,u16 devad)352 static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
353 u16 devad)
354 {
355 u16 tmp16;
356 int ret;
357
358 tmp16 = devad;
359 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
360 MII_MMD_CTRL, 2, &tmp16);
361
362 tmp16 = prtad;
363 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
364 MII_MMD_DATA, 2, &tmp16);
365
366 tmp16 = devad | MII_MMD_CTRL_NOINCR;
367 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
368 MII_MMD_CTRL, 2, &tmp16);
369
370 return ret;
371 }
372
373 static int
ax88179_phy_read_mmd_indirect(struct usbnet * dev,u16 prtad,u16 devad)374 ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
375 {
376 int ret;
377 u16 tmp16;
378
379 ax88179_phy_mmd_indirect(dev, prtad, devad);
380
381 ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
382 MII_MMD_DATA, 2, &tmp16);
383 if (ret < 0)
384 return ret;
385
386 return tmp16;
387 }
388
389 static int
ax88179_phy_write_mmd_indirect(struct usbnet * dev,u16 prtad,u16 devad,u16 data)390 ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
391 u16 data)
392 {
393 int ret;
394
395 ax88179_phy_mmd_indirect(dev, prtad, devad);
396
397 ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
398 MII_MMD_DATA, 2, &data);
399
400 if (ret < 0)
401 return ret;
402
403 return 0;
404 }
405
ax88179_suspend(struct usb_interface * intf,pm_message_t message)406 static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
407 {
408 struct usbnet *dev = usb_get_intfdata(intf);
409 struct ax88179_data *priv = dev->driver_priv;
410 u16 tmp16;
411 u8 tmp8;
412
413 ax88179_set_pm_mode(dev, true);
414
415 usbnet_suspend(intf, message);
416
417 /* Enable WoL */
418 if (priv->wolopts) {
419 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
420 1, 1, &tmp8);
421 if (priv->wolopts & WAKE_PHY)
422 tmp8 |= AX_MONITOR_MODE_RWLC;
423 if (priv->wolopts & WAKE_MAGIC)
424 tmp8 |= AX_MONITOR_MODE_RWMP;
425
426 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
427 1, 1, &tmp8);
428 }
429
430 /* Disable RX path */
431 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
432 2, 2, &tmp16);
433 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
434 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
435 2, 2, &tmp16);
436
437 /* Force bulk-in zero length */
438 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
439 2, 2, &tmp16);
440
441 tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
442 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
443 2, 2, &tmp16);
444
445 /* change clock */
446 tmp8 = 0;
447 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
448
449 /* Configure RX control register => stop operation */
450 tmp16 = AX_RX_CTL_STOP;
451 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
452
453 ax88179_set_pm_mode(dev, false);
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 */
ax88179_auto_detach(struct usbnet * dev)460 static int ax88179_auto_detach(struct usbnet *dev)
461 {
462 u16 tmp16;
463 u8 tmp8;
464
465 if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
466 return 0;
467
468 if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
469 return 0;
470
471 /* Enable Auto Detach bit */
472 tmp8 = 0;
473 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
474 tmp8 |= AX_CLK_SELECT_ULR;
475 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
476
477 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
478 tmp16 |= AX_PHYPWR_RSTCTL_AT;
479 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
480
481 return 0;
482 }
483
ax88179_resume(struct usb_interface * intf)484 static int ax88179_resume(struct usb_interface *intf)
485 {
486 struct usbnet *dev = usb_get_intfdata(intf);
487
488 ax88179_set_pm_mode(dev, true);
489
490 usbnet_link_change(dev, 0, 0);
491
492 ax88179_reset(dev);
493
494 ax88179_set_pm_mode(dev, false);
495
496 return usbnet_resume(intf);
497 }
498
ax88179_disconnect(struct usb_interface * intf)499 static void ax88179_disconnect(struct usb_interface *intf)
500 {
501 struct usbnet *dev = usb_get_intfdata(intf);
502 struct ax88179_data *ax179_data;
503
504 if (!dev)
505 return;
506
507 ax179_data = dev->driver_priv;
508 ax179_data->disconnecting = 1;
509
510 usbnet_disconnect(intf);
511 }
512
513 static void
ax88179_get_wol(struct net_device * net,struct ethtool_wolinfo * wolinfo)514 ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
515 {
516 struct usbnet *dev = netdev_priv(net);
517 struct ax88179_data *priv = dev->driver_priv;
518
519 wolinfo->supported = priv->wol_supported;
520 wolinfo->wolopts = priv->wolopts;
521 }
522
523 static int
ax88179_set_wol(struct net_device * net,struct ethtool_wolinfo * wolinfo)524 ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
525 {
526 struct usbnet *dev = netdev_priv(net);
527 struct ax88179_data *priv = dev->driver_priv;
528
529 if (wolinfo->wolopts & ~(priv->wol_supported))
530 return -EINVAL;
531
532 priv->wolopts = wolinfo->wolopts;
533
534 return 0;
535 }
536
ax88179_get_eeprom_len(struct net_device * net)537 static int ax88179_get_eeprom_len(struct net_device *net)
538 {
539 return AX_EEPROM_LEN;
540 }
541
542 static int
ax88179_get_eeprom(struct net_device * net,struct ethtool_eeprom * eeprom,u8 * data)543 ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
544 u8 *data)
545 {
546 struct usbnet *dev = netdev_priv(net);
547 u16 *eeprom_buff;
548 int first_word, last_word;
549 int i, ret;
550
551 if (eeprom->len == 0)
552 return -EINVAL;
553
554 eeprom->magic = AX88179_EEPROM_MAGIC;
555
556 first_word = eeprom->offset >> 1;
557 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
558 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
559 GFP_KERNEL);
560 if (!eeprom_buff)
561 return -ENOMEM;
562
563 /* ax88179/178A returns 2 bytes from eeprom on read */
564 for (i = first_word; i <= last_word; i++) {
565 ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
566 &eeprom_buff[i - first_word]);
567 if (ret < 0) {
568 kfree(eeprom_buff);
569 return -EIO;
570 }
571 }
572
573 memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
574 kfree(eeprom_buff);
575 return 0;
576 }
577
578 static int
ax88179_set_eeprom(struct net_device * net,struct ethtool_eeprom * eeprom,u8 * data)579 ax88179_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
580 u8 *data)
581 {
582 struct usbnet *dev = netdev_priv(net);
583 u16 *eeprom_buff;
584 int first_word;
585 int last_word;
586 int ret;
587 int i;
588
589 netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n",
590 eeprom->len, eeprom->offset, eeprom->magic);
591
592 if (eeprom->len == 0)
593 return -EINVAL;
594
595 if (eeprom->magic != AX88179_EEPROM_MAGIC)
596 return -EINVAL;
597
598 first_word = eeprom->offset >> 1;
599 last_word = (eeprom->offset + eeprom->len - 1) >> 1;
600
601 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
602 GFP_KERNEL);
603 if (!eeprom_buff)
604 return -ENOMEM;
605
606 /* align data to 16 bit boundaries, read the missing data from
607 the EEPROM */
608 if (eeprom->offset & 1) {
609 ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, first_word, 1, 2,
610 &eeprom_buff[0]);
611 if (ret < 0) {
612 netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word);
613 goto free;
614 }
615 }
616
617 if ((eeprom->offset + eeprom->len) & 1) {
618 ret = ax88179_read_cmd(dev, AX_ACCESS_EEPROM, last_word, 1, 2,
619 &eeprom_buff[last_word - first_word]);
620 if (ret < 0) {
621 netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word);
622 goto free;
623 }
624 }
625
626 memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len);
627
628 for (i = first_word; i <= last_word; i++) {
629 netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n",
630 i, eeprom_buff[i - first_word]);
631 ret = ax88179_write_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
632 &eeprom_buff[i - first_word]);
633 if (ret < 0) {
634 netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", i);
635 goto free;
636 }
637 msleep(20);
638 }
639
640 /* reload EEPROM data */
641 ret = ax88179_write_cmd(dev, AX_RELOAD_EEPROM_EFUSE, 0x0000, 0, 0, NULL);
642 if (ret < 0) {
643 netdev_err(net, "Failed to reload EEPROM data\n");
644 goto free;
645 }
646
647 ret = 0;
648 free:
649 kfree(eeprom_buff);
650 return ret;
651 }
652
ax88179_get_link_ksettings(struct net_device * net,struct ethtool_link_ksettings * cmd)653 static int ax88179_get_link_ksettings(struct net_device *net,
654 struct ethtool_link_ksettings *cmd)
655 {
656 struct usbnet *dev = netdev_priv(net);
657
658 mii_ethtool_get_link_ksettings(&dev->mii, cmd);
659
660 return 0;
661 }
662
ax88179_set_link_ksettings(struct net_device * net,const struct ethtool_link_ksettings * cmd)663 static int ax88179_set_link_ksettings(struct net_device *net,
664 const struct ethtool_link_ksettings *cmd)
665 {
666 struct usbnet *dev = netdev_priv(net);
667 return mii_ethtool_set_link_ksettings(&dev->mii, cmd);
668 }
669
670 static int
ax88179_ethtool_get_eee(struct usbnet * dev,struct ethtool_eee * data)671 ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
672 {
673 int val;
674
675 /* Get Supported EEE */
676 val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
677 MDIO_MMD_PCS);
678 if (val < 0)
679 return val;
680 data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
681
682 /* Get advertisement EEE */
683 val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
684 MDIO_MMD_AN);
685 if (val < 0)
686 return val;
687 data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
688
689 /* Get LP advertisement EEE */
690 val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
691 MDIO_MMD_AN);
692 if (val < 0)
693 return val;
694 data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
695
696 return 0;
697 }
698
699 static int
ax88179_ethtool_set_eee(struct usbnet * dev,struct ethtool_eee * data)700 ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
701 {
702 u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
703
704 return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
705 MDIO_MMD_AN, tmp16);
706 }
707
ax88179_chk_eee(struct usbnet * dev)708 static int ax88179_chk_eee(struct usbnet *dev)
709 {
710 struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
711 struct ax88179_data *priv = dev->driver_priv;
712
713 mii_ethtool_gset(&dev->mii, &ecmd);
714
715 if (ecmd.duplex & DUPLEX_FULL) {
716 int eee_lp, eee_cap, eee_adv;
717 u32 lp, cap, adv, supported = 0;
718
719 eee_cap = ax88179_phy_read_mmd_indirect(dev,
720 MDIO_PCS_EEE_ABLE,
721 MDIO_MMD_PCS);
722 if (eee_cap < 0) {
723 priv->eee_active = 0;
724 return false;
725 }
726
727 cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
728 if (!cap) {
729 priv->eee_active = 0;
730 return false;
731 }
732
733 eee_lp = ax88179_phy_read_mmd_indirect(dev,
734 MDIO_AN_EEE_LPABLE,
735 MDIO_MMD_AN);
736 if (eee_lp < 0) {
737 priv->eee_active = 0;
738 return false;
739 }
740
741 eee_adv = ax88179_phy_read_mmd_indirect(dev,
742 MDIO_AN_EEE_ADV,
743 MDIO_MMD_AN);
744
745 if (eee_adv < 0) {
746 priv->eee_active = 0;
747 return false;
748 }
749
750 adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
751 lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
752 supported = (ecmd.speed == SPEED_1000) ?
753 SUPPORTED_1000baseT_Full :
754 SUPPORTED_100baseT_Full;
755
756 if (!(lp & adv & supported)) {
757 priv->eee_active = 0;
758 return false;
759 }
760
761 priv->eee_active = 1;
762 return true;
763 }
764
765 priv->eee_active = 0;
766 return false;
767 }
768
ax88179_disable_eee(struct usbnet * dev)769 static void ax88179_disable_eee(struct usbnet *dev)
770 {
771 u16 tmp16;
772
773 tmp16 = GMII_PHY_PGSEL_PAGE3;
774 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
775 GMII_PHY_PAGE_SELECT, 2, &tmp16);
776
777 tmp16 = 0x3246;
778 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
779 MII_PHYADDR, 2, &tmp16);
780
781 tmp16 = GMII_PHY_PGSEL_PAGE0;
782 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
783 GMII_PHY_PAGE_SELECT, 2, &tmp16);
784 }
785
ax88179_enable_eee(struct usbnet * dev)786 static void ax88179_enable_eee(struct usbnet *dev)
787 {
788 u16 tmp16;
789
790 tmp16 = GMII_PHY_PGSEL_PAGE3;
791 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
792 GMII_PHY_PAGE_SELECT, 2, &tmp16);
793
794 tmp16 = 0x3247;
795 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
796 MII_PHYADDR, 2, &tmp16);
797
798 tmp16 = GMII_PHY_PGSEL_PAGE5;
799 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
800 GMII_PHY_PAGE_SELECT, 2, &tmp16);
801
802 tmp16 = 0x0680;
803 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
804 MII_BMSR, 2, &tmp16);
805
806 tmp16 = GMII_PHY_PGSEL_PAGE0;
807 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
808 GMII_PHY_PAGE_SELECT, 2, &tmp16);
809 }
810
ax88179_get_eee(struct net_device * net,struct ethtool_eee * edata)811 static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
812 {
813 struct usbnet *dev = netdev_priv(net);
814 struct ax88179_data *priv = dev->driver_priv;
815
816 edata->eee_enabled = priv->eee_enabled;
817 edata->eee_active = priv->eee_active;
818
819 return ax88179_ethtool_get_eee(dev, edata);
820 }
821
ax88179_set_eee(struct net_device * net,struct ethtool_eee * edata)822 static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
823 {
824 struct usbnet *dev = netdev_priv(net);
825 struct ax88179_data *priv = dev->driver_priv;
826 int ret;
827
828 priv->eee_enabled = edata->eee_enabled;
829 if (!priv->eee_enabled) {
830 ax88179_disable_eee(dev);
831 } else {
832 priv->eee_enabled = ax88179_chk_eee(dev);
833 if (!priv->eee_enabled)
834 return -EOPNOTSUPP;
835
836 ax88179_enable_eee(dev);
837 }
838
839 ret = ax88179_ethtool_set_eee(dev, edata);
840 if (ret)
841 return ret;
842
843 mii_nway_restart(&dev->mii);
844
845 usbnet_link_change(dev, 0, 0);
846
847 return ret;
848 }
849
ax88179_ioctl(struct net_device * net,struct ifreq * rq,int cmd)850 static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
851 {
852 struct usbnet *dev = netdev_priv(net);
853 return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
854 }
855
856 static const struct ethtool_ops ax88179_ethtool_ops = {
857 .get_link = ethtool_op_get_link,
858 .get_msglevel = usbnet_get_msglevel,
859 .set_msglevel = usbnet_set_msglevel,
860 .get_wol = ax88179_get_wol,
861 .set_wol = ax88179_set_wol,
862 .get_eeprom_len = ax88179_get_eeprom_len,
863 .get_eeprom = ax88179_get_eeprom,
864 .set_eeprom = ax88179_set_eeprom,
865 .get_eee = ax88179_get_eee,
866 .set_eee = ax88179_set_eee,
867 .nway_reset = usbnet_nway_reset,
868 .get_link_ksettings = ax88179_get_link_ksettings,
869 .set_link_ksettings = ax88179_set_link_ksettings,
870 .get_ts_info = ethtool_op_get_ts_info,
871 };
872
ax88179_set_multicast(struct net_device * net)873 static void ax88179_set_multicast(struct net_device *net)
874 {
875 struct usbnet *dev = netdev_priv(net);
876 struct ax88179_data *data = dev->driver_priv;
877 u8 *m_filter = ((u8 *)dev->data);
878
879 data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
880
881 if (net->flags & IFF_PROMISC) {
882 data->rxctl |= AX_RX_CTL_PRO;
883 } else if (net->flags & IFF_ALLMULTI ||
884 netdev_mc_count(net) > AX_MAX_MCAST) {
885 data->rxctl |= AX_RX_CTL_AMALL;
886 } else if (netdev_mc_empty(net)) {
887 /* just broadcast and directed */
888 } else {
889 /* We use dev->data for our 8 byte filter buffer
890 * to avoid allocating memory that is tricky to free later
891 */
892 u32 crc_bits;
893 struct netdev_hw_addr *ha;
894
895 memset(m_filter, 0, AX_MCAST_FLTSIZE);
896
897 netdev_for_each_mc_addr(ha, net) {
898 crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
899 *(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
900 }
901
902 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
903 AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
904 m_filter);
905
906 data->rxctl |= AX_RX_CTL_AM;
907 }
908
909 ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
910 2, 2, &data->rxctl);
911 }
912
913 static int
ax88179_set_features(struct net_device * net,netdev_features_t features)914 ax88179_set_features(struct net_device *net, netdev_features_t features)
915 {
916 u8 tmp;
917 struct usbnet *dev = netdev_priv(net);
918 netdev_features_t changed = net->features ^ features;
919
920 if (changed & NETIF_F_IP_CSUM) {
921 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
922 tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
923 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
924 }
925
926 if (changed & NETIF_F_IPV6_CSUM) {
927 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
928 tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
929 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
930 }
931
932 if (changed & NETIF_F_RXCSUM) {
933 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
934 tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
935 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
936 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
937 }
938
939 return 0;
940 }
941
ax88179_change_mtu(struct net_device * net,int new_mtu)942 static int ax88179_change_mtu(struct net_device *net, int new_mtu)
943 {
944 struct usbnet *dev = netdev_priv(net);
945 u16 tmp16;
946
947 net->mtu = new_mtu;
948 dev->hard_mtu = net->mtu + net->hard_header_len;
949
950 if (net->mtu > 1500) {
951 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
952 2, 2, &tmp16);
953 tmp16 |= AX_MEDIUM_JUMBO_EN;
954 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
955 2, 2, &tmp16);
956 } else {
957 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
958 2, 2, &tmp16);
959 tmp16 &= ~AX_MEDIUM_JUMBO_EN;
960 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
961 2, 2, &tmp16);
962 }
963
964 /* max qlen depend on hard_mtu and rx_urb_size */
965 usbnet_update_max_qlen(dev);
966
967 return 0;
968 }
969
ax88179_set_mac_addr(struct net_device * net,void * p)970 static int ax88179_set_mac_addr(struct net_device *net, void *p)
971 {
972 struct usbnet *dev = netdev_priv(net);
973 struct sockaddr *addr = p;
974 int ret;
975
976 if (netif_running(net))
977 return -EBUSY;
978 if (!is_valid_ether_addr(addr->sa_data))
979 return -EADDRNOTAVAIL;
980
981 eth_hw_addr_set(net, addr->sa_data);
982
983 /* Set the MAC address */
984 ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
985 ETH_ALEN, net->dev_addr);
986 if (ret < 0)
987 return ret;
988
989 return 0;
990 }
991
992 static const struct net_device_ops ax88179_netdev_ops = {
993 .ndo_open = usbnet_open,
994 .ndo_stop = usbnet_stop,
995 .ndo_start_xmit = usbnet_start_xmit,
996 .ndo_tx_timeout = usbnet_tx_timeout,
997 .ndo_get_stats64 = dev_get_tstats64,
998 .ndo_change_mtu = ax88179_change_mtu,
999 .ndo_set_mac_address = ax88179_set_mac_addr,
1000 .ndo_validate_addr = eth_validate_addr,
1001 .ndo_eth_ioctl = ax88179_ioctl,
1002 .ndo_set_rx_mode = ax88179_set_multicast,
1003 .ndo_set_features = ax88179_set_features,
1004 };
1005
ax88179_check_eeprom(struct usbnet * dev)1006 static int ax88179_check_eeprom(struct usbnet *dev)
1007 {
1008 u8 i, buf, eeprom[20];
1009 u16 csum, delay = HZ / 10;
1010 unsigned long jtimeout;
1011
1012 /* Read EEPROM content */
1013 for (i = 0; i < 6; i++) {
1014 buf = i;
1015 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1016 1, 1, &buf) < 0)
1017 return -EINVAL;
1018
1019 buf = EEP_RD;
1020 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1021 1, 1, &buf) < 0)
1022 return -EINVAL;
1023
1024 jtimeout = jiffies + delay;
1025 do {
1026 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1027 1, 1, &buf);
1028
1029 if (time_after(jiffies, jtimeout))
1030 return -EINVAL;
1031
1032 } while (buf & EEP_BUSY);
1033
1034 __ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1035 2, 2, &eeprom[i * 2]);
1036
1037 if ((i == 0) && (eeprom[0] == 0xFF))
1038 return -EINVAL;
1039 }
1040
1041 csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
1042 csum = (csum >> 8) + (csum & 0xff);
1043 if ((csum + eeprom[10]) != 0xff)
1044 return -EINVAL;
1045
1046 return 0;
1047 }
1048
ax88179_check_efuse(struct usbnet * dev,u16 * ledmode)1049 static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
1050 {
1051 u8 i;
1052 u8 efuse[64];
1053 u16 csum = 0;
1054
1055 if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
1056 return -EINVAL;
1057
1058 if (*efuse == 0xFF)
1059 return -EINVAL;
1060
1061 for (i = 0; i < 64; i++)
1062 csum = csum + efuse[i];
1063
1064 while (csum > 255)
1065 csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
1066
1067 if (csum != 0xFF)
1068 return -EINVAL;
1069
1070 *ledmode = (efuse[51] << 8) | efuse[52];
1071
1072 return 0;
1073 }
1074
ax88179_convert_old_led(struct usbnet * dev,u16 * ledvalue)1075 static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
1076 {
1077 u16 led;
1078
1079 /* Loaded the old eFuse LED Mode */
1080 if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
1081 return -EINVAL;
1082
1083 led >>= 8;
1084 switch (led) {
1085 case 0xFF:
1086 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1087 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1088 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1089 break;
1090 case 0xFE:
1091 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
1092 break;
1093 case 0xFD:
1094 led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
1095 LED2_LINK_10 | LED_VALID;
1096 break;
1097 case 0xFC:
1098 led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
1099 LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
1100 break;
1101 default:
1102 led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1103 LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1104 LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1105 break;
1106 }
1107
1108 *ledvalue = led;
1109
1110 return 0;
1111 }
1112
ax88179_led_setting(struct usbnet * dev)1113 static int ax88179_led_setting(struct usbnet *dev)
1114 {
1115 u8 ledfd, value = 0;
1116 u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
1117 unsigned long jtimeout;
1118
1119 /* Check AX88179 version. UA1 or UA2*/
1120 ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
1121
1122 if (!(value & AX_SECLD)) { /* UA1 */
1123 value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
1124 AX_GPIO_CTRL_GPIO1EN;
1125 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
1126 1, 1, &value) < 0)
1127 return -EINVAL;
1128 }
1129
1130 /* Check EEPROM */
1131 if (!ax88179_check_eeprom(dev)) {
1132 value = 0x42;
1133 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1134 1, 1, &value) < 0)
1135 return -EINVAL;
1136
1137 value = EEP_RD;
1138 if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1139 1, 1, &value) < 0)
1140 return -EINVAL;
1141
1142 jtimeout = jiffies + delay;
1143 do {
1144 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1145 1, 1, &value);
1146
1147 if (time_after(jiffies, jtimeout))
1148 return -EINVAL;
1149
1150 } while (value & EEP_BUSY);
1151
1152 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
1153 1, 1, &value);
1154 ledvalue = (value << 8);
1155
1156 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1157 1, 1, &value);
1158 ledvalue |= value;
1159
1160 /* load internal ROM for defaule setting */
1161 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1162 ax88179_convert_old_led(dev, &ledvalue);
1163
1164 } else if (!ax88179_check_efuse(dev, &ledvalue)) {
1165 if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1166 ax88179_convert_old_led(dev, &ledvalue);
1167 } else {
1168 ax88179_convert_old_led(dev, &ledvalue);
1169 }
1170
1171 tmp = GMII_PHY_PGSEL_EXT;
1172 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1173 GMII_PHY_PAGE_SELECT, 2, &tmp);
1174
1175 tmp = 0x2c;
1176 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1177 GMII_PHYPAGE, 2, &tmp);
1178
1179 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1180 GMII_LED_ACT, 2, &ledact);
1181
1182 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1183 GMII_LED_LINK, 2, &ledlink);
1184
1185 ledact &= GMII_LED_ACTIVE_MASK;
1186 ledlink &= GMII_LED_LINK_MASK;
1187
1188 if (ledvalue & LED0_ACTIVE)
1189 ledact |= GMII_LED0_ACTIVE;
1190
1191 if (ledvalue & LED1_ACTIVE)
1192 ledact |= GMII_LED1_ACTIVE;
1193
1194 if (ledvalue & LED2_ACTIVE)
1195 ledact |= GMII_LED2_ACTIVE;
1196
1197 if (ledvalue & LED0_LINK_10)
1198 ledlink |= GMII_LED0_LINK_10;
1199
1200 if (ledvalue & LED1_LINK_10)
1201 ledlink |= GMII_LED1_LINK_10;
1202
1203 if (ledvalue & LED2_LINK_10)
1204 ledlink |= GMII_LED2_LINK_10;
1205
1206 if (ledvalue & LED0_LINK_100)
1207 ledlink |= GMII_LED0_LINK_100;
1208
1209 if (ledvalue & LED1_LINK_100)
1210 ledlink |= GMII_LED1_LINK_100;
1211
1212 if (ledvalue & LED2_LINK_100)
1213 ledlink |= GMII_LED2_LINK_100;
1214
1215 if (ledvalue & LED0_LINK_1000)
1216 ledlink |= GMII_LED0_LINK_1000;
1217
1218 if (ledvalue & LED1_LINK_1000)
1219 ledlink |= GMII_LED1_LINK_1000;
1220
1221 if (ledvalue & LED2_LINK_1000)
1222 ledlink |= GMII_LED2_LINK_1000;
1223
1224 tmp = ledact;
1225 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1226 GMII_LED_ACT, 2, &tmp);
1227
1228 tmp = ledlink;
1229 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1230 GMII_LED_LINK, 2, &tmp);
1231
1232 tmp = GMII_PHY_PGSEL_PAGE0;
1233 ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1234 GMII_PHY_PAGE_SELECT, 2, &tmp);
1235
1236 /* LED full duplex setting */
1237 ledfd = 0;
1238 if (ledvalue & LED0_FD)
1239 ledfd |= 0x01;
1240 else if ((ledvalue & LED0_USB3_MASK) == 0)
1241 ledfd |= 0x02;
1242
1243 if (ledvalue & LED1_FD)
1244 ledfd |= 0x04;
1245 else if ((ledvalue & LED1_USB3_MASK) == 0)
1246 ledfd |= 0x08;
1247
1248 if (ledvalue & LED2_FD)
1249 ledfd |= 0x10;
1250 else if ((ledvalue & LED2_USB3_MASK) == 0)
1251 ledfd |= 0x20;
1252
1253 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
1254
1255 return 0;
1256 }
1257
ax88179_get_mac_addr(struct usbnet * dev)1258 static void ax88179_get_mac_addr(struct usbnet *dev)
1259 {
1260 u8 mac[ETH_ALEN];
1261
1262 memset(mac, 0, sizeof(mac));
1263
1264 /* Maybe the boot loader passed the MAC address via device tree */
1265 if (!eth_platform_get_mac_address(&dev->udev->dev, mac)) {
1266 netif_dbg(dev, ifup, dev->net,
1267 "MAC address read from device tree");
1268 } else {
1269 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1270 ETH_ALEN, mac);
1271 netif_dbg(dev, ifup, dev->net,
1272 "MAC address read from ASIX chip");
1273 }
1274
1275 if (is_valid_ether_addr(mac)) {
1276 eth_hw_addr_set(dev->net, mac);
1277 if (!is_local_ether_addr(mac))
1278 dev->net->addr_assign_type = NET_ADDR_PERM;
1279 } else {
1280 netdev_info(dev->net, "invalid MAC address, using random\n");
1281 eth_hw_addr_random(dev->net);
1282 }
1283
1284 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
1285 dev->net->dev_addr);
1286 }
1287
ax88179_bind(struct usbnet * dev,struct usb_interface * intf)1288 static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
1289 {
1290 struct ax88179_data *ax179_data;
1291
1292 usbnet_get_endpoints(dev, intf);
1293
1294 ax179_data = kzalloc(sizeof(*ax179_data), GFP_KERNEL);
1295 if (!ax179_data)
1296 return -ENOMEM;
1297
1298 dev->driver_priv = ax179_data;
1299
1300 dev->net->netdev_ops = &ax88179_netdev_ops;
1301 dev->net->ethtool_ops = &ax88179_ethtool_ops;
1302 dev->net->needed_headroom = 8;
1303 dev->net->max_mtu = 4088;
1304
1305 /* Initialize MII structure */
1306 dev->mii.dev = dev->net;
1307 dev->mii.mdio_read = ax88179_mdio_read;
1308 dev->mii.mdio_write = ax88179_mdio_write;
1309 dev->mii.phy_id_mask = 0xff;
1310 dev->mii.reg_num_mask = 0xff;
1311 dev->mii.phy_id = 0x03;
1312 dev->mii.supports_gmii = 1;
1313
1314 dev->net->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
1315 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | NETIF_F_TSO;
1316
1317 dev->net->hw_features |= dev->net->features;
1318
1319 netif_set_tso_max_size(dev->net, 16384);
1320
1321 ax88179_reset(dev);
1322
1323 return 0;
1324 }
1325
ax88179_unbind(struct usbnet * dev,struct usb_interface * intf)1326 static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
1327 {
1328 struct ax88179_data *ax179_data = dev->driver_priv;
1329 u16 tmp16;
1330
1331 /* Configure RX control register => stop operation */
1332 tmp16 = AX_RX_CTL_STOP;
1333 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
1334
1335 tmp16 = 0;
1336 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
1337
1338 /* Power down ethernet PHY */
1339 tmp16 = 0;
1340 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
1341
1342 kfree(ax179_data);
1343 }
1344
1345 static void
ax88179_rx_checksum(struct sk_buff * skb,u32 * pkt_hdr)1346 ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
1347 {
1348 skb->ip_summed = CHECKSUM_NONE;
1349
1350 /* checksum error bit is set */
1351 if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
1352 (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
1353 return;
1354
1355 /* It must be a TCP or UDP packet with a valid checksum */
1356 if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
1357 ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
1358 skb->ip_summed = CHECKSUM_UNNECESSARY;
1359 }
1360
ax88179_rx_fixup(struct usbnet * dev,struct sk_buff * skb)1361 static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1362 {
1363 struct sk_buff *ax_skb;
1364 int pkt_cnt;
1365 u32 rx_hdr;
1366 u16 hdr_off;
1367 u32 *pkt_hdr;
1368
1369 /* At the end of the SKB, there's a header telling us how many packets
1370 * are bundled into this buffer and where we can find an array of
1371 * per-packet metadata (which contains elements encoded into u16).
1372 */
1373
1374 /* SKB contents for current firmware:
1375 * <packet 1> <padding>
1376 * ...
1377 * <packet N> <padding>
1378 * <per-packet metadata entry 1> <dummy header>
1379 * ...
1380 * <per-packet metadata entry N> <dummy header>
1381 * <padding2> <rx_hdr>
1382 *
1383 * where:
1384 * <packet N> contains pkt_len bytes:
1385 * 2 bytes of IP alignment pseudo header
1386 * packet received
1387 * <per-packet metadata entry N> contains 4 bytes:
1388 * pkt_len and fields AX_RXHDR_*
1389 * <padding> 0-7 bytes to terminate at
1390 * 8 bytes boundary (64-bit).
1391 * <padding2> 4 bytes to make rx_hdr terminate at
1392 * 8 bytes boundary (64-bit)
1393 * <dummy-header> contains 4 bytes:
1394 * pkt_len=0 and AX_RXHDR_DROP_ERR
1395 * <rx-hdr> contains 4 bytes:
1396 * pkt_cnt and hdr_off (offset of
1397 * <per-packet metadata entry 1>)
1398 *
1399 * pkt_cnt is number of entrys in the per-packet metadata.
1400 * In current firmware there is 2 entrys per packet.
1401 * The first points to the packet and the
1402 * second is a dummy header.
1403 * This was done probably to align fields in 64-bit and
1404 * maintain compatibility with old firmware.
1405 * This code assumes that <dummy header> and <padding2> are
1406 * optional.
1407 */
1408
1409 if (skb->len < 4)
1410 return 0;
1411 skb_trim(skb, skb->len - 4);
1412 rx_hdr = get_unaligned_le32(skb_tail_pointer(skb));
1413 pkt_cnt = (u16)rx_hdr;
1414 hdr_off = (u16)(rx_hdr >> 16);
1415
1416 if (pkt_cnt == 0)
1417 return 0;
1418
1419 /* Make sure that the bounds of the metadata array are inside the SKB
1420 * (and in front of the counter at the end).
1421 */
1422 if (pkt_cnt * 4 + hdr_off > skb->len)
1423 return 0;
1424 pkt_hdr = (u32 *)(skb->data + hdr_off);
1425
1426 /* Packets must not overlap the metadata array */
1427 skb_trim(skb, hdr_off);
1428
1429 for (; pkt_cnt > 0; pkt_cnt--, pkt_hdr++) {
1430 u16 pkt_len_plus_padd;
1431 u16 pkt_len;
1432
1433 le32_to_cpus(pkt_hdr);
1434 pkt_len = (*pkt_hdr >> 16) & 0x1fff;
1435 pkt_len_plus_padd = (pkt_len + 7) & 0xfff8;
1436
1437 /* Skip dummy header used for alignment
1438 */
1439 if (pkt_len == 0)
1440 continue;
1441
1442 if (pkt_len_plus_padd > skb->len)
1443 return 0;
1444
1445 /* Check CRC or runt packet */
1446 if ((*pkt_hdr & (AX_RXHDR_CRC_ERR | AX_RXHDR_DROP_ERR)) ||
1447 pkt_len < 2 + ETH_HLEN) {
1448 dev->net->stats.rx_errors++;
1449 skb_pull(skb, pkt_len_plus_padd);
1450 continue;
1451 }
1452
1453 /* last packet */
1454 if (pkt_len_plus_padd == skb->len) {
1455 skb_trim(skb, pkt_len);
1456
1457 /* Skip IP alignment pseudo header */
1458 skb_pull(skb, 2);
1459
1460 ax88179_rx_checksum(skb, pkt_hdr);
1461 return 1;
1462 }
1463
1464 ax_skb = netdev_alloc_skb_ip_align(dev->net, pkt_len);
1465 if (!ax_skb)
1466 return 0;
1467 skb_put(ax_skb, pkt_len);
1468 memcpy(ax_skb->data, skb->data + 2, pkt_len);
1469
1470 ax88179_rx_checksum(ax_skb, pkt_hdr);
1471 usbnet_skb_return(dev, ax_skb);
1472
1473 skb_pull(skb, pkt_len_plus_padd);
1474 }
1475
1476 return 0;
1477 }
1478
1479 static struct sk_buff *
ax88179_tx_fixup(struct usbnet * dev,struct sk_buff * skb,gfp_t flags)1480 ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
1481 {
1482 u32 tx_hdr1, tx_hdr2;
1483 int frame_size = dev->maxpacket;
1484 int headroom;
1485 void *ptr;
1486
1487 tx_hdr1 = skb->len;
1488 tx_hdr2 = skb_shinfo(skb)->gso_size; /* Set TSO mss */
1489 if (((skb->len + 8) % frame_size) == 0)
1490 tx_hdr2 |= 0x80008000; /* Enable padding */
1491
1492 headroom = skb_headroom(skb) - 8;
1493
1494 if ((dev->net->features & NETIF_F_SG) && skb_linearize(skb))
1495 return NULL;
1496
1497 if ((skb_header_cloned(skb) || headroom < 0) &&
1498 pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
1499 dev_kfree_skb_any(skb);
1500 return NULL;
1501 }
1502
1503 ptr = skb_push(skb, 8);
1504 put_unaligned_le32(tx_hdr1, ptr);
1505 put_unaligned_le32(tx_hdr2, ptr + 4);
1506
1507 usbnet_set_skb_tx_stats(skb, (skb_shinfo(skb)->gso_segs ?: 1), 0);
1508
1509 return skb;
1510 }
1511
ax88179_link_reset(struct usbnet * dev)1512 static int ax88179_link_reset(struct usbnet *dev)
1513 {
1514 struct ax88179_data *ax179_data = dev->driver_priv;
1515 u8 tmp[5], link_sts;
1516 u16 mode, tmp16, delay = HZ / 10;
1517 u32 tmp32 = 0x40000000;
1518 unsigned long jtimeout;
1519
1520 jtimeout = jiffies + delay;
1521 while (tmp32 & 0x40000000) {
1522 mode = 0;
1523 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
1524 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
1525 &ax179_data->rxctl);
1526
1527 /*link up, check the usb device control TX FIFO full or empty*/
1528 ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
1529
1530 if (time_after(jiffies, jtimeout))
1531 return 0;
1532 }
1533
1534 mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1535 AX_MEDIUM_RXFLOW_CTRLEN;
1536
1537 ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
1538 1, 1, &link_sts);
1539
1540 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1541 GMII_PHY_PHYSR, 2, &tmp16);
1542
1543 if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
1544 netdev_info(dev->net, "ax88179 - Link status is: 0\n");
1545 return 0;
1546 } else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1547 mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
1548 if (dev->net->mtu > 1500)
1549 mode |= AX_MEDIUM_JUMBO_EN;
1550
1551 if (link_sts & AX_USB_SS)
1552 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1553 else if (link_sts & AX_USB_HS)
1554 memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
1555 else
1556 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1557 } else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1558 mode |= AX_MEDIUM_PS;
1559
1560 if (link_sts & (AX_USB_SS | AX_USB_HS))
1561 memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
1562 else
1563 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1564 } else {
1565 memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1566 }
1567
1568 /* RX bulk configuration */
1569 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1570
1571 dev->rx_urb_size = (1024 * (tmp[3] + 2));
1572
1573 if (tmp16 & GMII_PHY_PHYSR_FULL)
1574 mode |= AX_MEDIUM_FULL_DUPLEX;
1575 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1576 2, 2, &mode);
1577
1578 ax179_data->eee_enabled = ax88179_chk_eee(dev);
1579
1580 netif_carrier_on(dev->net);
1581
1582 netdev_info(dev->net, "ax88179 - Link status is: 1\n");
1583
1584 return 0;
1585 }
1586
ax88179_reset(struct usbnet * dev)1587 static int ax88179_reset(struct usbnet *dev)
1588 {
1589 u8 buf[5];
1590 u16 *tmp16;
1591 u8 *tmp;
1592 struct ax88179_data *ax179_data = dev->driver_priv;
1593 struct ethtool_eee eee_data;
1594
1595 tmp16 = (u16 *)buf;
1596 tmp = (u8 *)buf;
1597
1598 /* Power up ethernet PHY */
1599 *tmp16 = 0;
1600 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1601
1602 *tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1603 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1604 msleep(500);
1605
1606 *tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1607 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1608 msleep(200);
1609
1610 /* Ethernet PHY Auto Detach*/
1611 ax88179_auto_detach(dev);
1612
1613 /* Read MAC address from DTB or asix chip */
1614 ax88179_get_mac_addr(dev);
1615 memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1616
1617 /* RX bulk configuration */
1618 memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1619 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1620
1621 dev->rx_urb_size = 1024 * 20;
1622
1623 *tmp = 0x34;
1624 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1625
1626 *tmp = 0x52;
1627 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1628 1, 1, tmp);
1629
1630 /* Enable checksum offload */
1631 *tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1632 AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1633 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1634
1635 *tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1636 AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1637 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1638
1639 /* Configure RX control register => start operation */
1640 *tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1641 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1642 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1643
1644 *tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1645 AX_MONITOR_MODE_RWMP;
1646 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1647
1648 /* Configure default medium type => giga */
1649 *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1650 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1651 AX_MEDIUM_GIGAMODE;
1652 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1653 2, 2, tmp16);
1654
1655 /* Check if WoL is supported */
1656 ax179_data->wol_supported = 0;
1657 if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
1658 1, 1, &tmp) > 0)
1659 ax179_data->wol_supported = WAKE_MAGIC | WAKE_PHY;
1660
1661 ax88179_led_setting(dev);
1662
1663 ax179_data->eee_enabled = 0;
1664 ax179_data->eee_active = 0;
1665
1666 ax88179_disable_eee(dev);
1667
1668 ax88179_ethtool_get_eee(dev, &eee_data);
1669 eee_data.advertised = 0;
1670 ax88179_ethtool_set_eee(dev, &eee_data);
1671
1672 /* Restart autoneg */
1673 mii_nway_restart(&dev->mii);
1674
1675 usbnet_link_change(dev, 0, 0);
1676
1677 return 0;
1678 }
1679
ax88179_net_reset(struct usbnet * dev)1680 static int ax88179_net_reset(struct usbnet *dev)
1681 {
1682 u16 tmp16;
1683
1684 ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID, GMII_PHY_PHYSR,
1685 2, &tmp16);
1686 if (tmp16) {
1687 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1688 2, 2, &tmp16);
1689 if (!(tmp16 & AX_MEDIUM_RECEIVE_EN)) {
1690 tmp16 |= AX_MEDIUM_RECEIVE_EN;
1691 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1692 2, 2, &tmp16);
1693 }
1694 } else {
1695 ax88179_reset(dev);
1696 }
1697
1698 return 0;
1699 }
1700
ax88179_stop(struct usbnet * dev)1701 static int ax88179_stop(struct usbnet *dev)
1702 {
1703 u16 tmp16;
1704
1705 ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1706 2, 2, &tmp16);
1707 tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
1708 ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1709 2, 2, &tmp16);
1710
1711 return 0;
1712 }
1713
1714 static const struct driver_info ax88179_info = {
1715 .description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
1716 .bind = ax88179_bind,
1717 .unbind = ax88179_unbind,
1718 .status = ax88179_status,
1719 .link_reset = ax88179_link_reset,
1720 .reset = ax88179_net_reset,
1721 .stop = ax88179_stop,
1722 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1723 .rx_fixup = ax88179_rx_fixup,
1724 .tx_fixup = ax88179_tx_fixup,
1725 };
1726
1727 static const struct driver_info ax88178a_info = {
1728 .description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
1729 .bind = ax88179_bind,
1730 .unbind = ax88179_unbind,
1731 .status = ax88179_status,
1732 .link_reset = ax88179_link_reset,
1733 .reset = ax88179_net_reset,
1734 .stop = ax88179_stop,
1735 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1736 .rx_fixup = ax88179_rx_fixup,
1737 .tx_fixup = ax88179_tx_fixup,
1738 };
1739
1740 static const struct driver_info cypress_GX3_info = {
1741 .description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller",
1742 .bind = ax88179_bind,
1743 .unbind = ax88179_unbind,
1744 .status = ax88179_status,
1745 .link_reset = ax88179_link_reset,
1746 .reset = ax88179_net_reset,
1747 .stop = ax88179_stop,
1748 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1749 .rx_fixup = ax88179_rx_fixup,
1750 .tx_fixup = ax88179_tx_fixup,
1751 };
1752
1753 static const struct driver_info dlink_dub1312_info = {
1754 .description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
1755 .bind = ax88179_bind,
1756 .unbind = ax88179_unbind,
1757 .status = ax88179_status,
1758 .link_reset = ax88179_link_reset,
1759 .reset = ax88179_net_reset,
1760 .stop = ax88179_stop,
1761 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1762 .rx_fixup = ax88179_rx_fixup,
1763 .tx_fixup = ax88179_tx_fixup,
1764 };
1765
1766 static const struct driver_info sitecom_info = {
1767 .description = "Sitecom USB 3.0 to Gigabit Adapter",
1768 .bind = ax88179_bind,
1769 .unbind = ax88179_unbind,
1770 .status = ax88179_status,
1771 .link_reset = ax88179_link_reset,
1772 .reset = ax88179_net_reset,
1773 .stop = ax88179_stop,
1774 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1775 .rx_fixup = ax88179_rx_fixup,
1776 .tx_fixup = ax88179_tx_fixup,
1777 };
1778
1779 static const struct driver_info samsung_info = {
1780 .description = "Samsung USB Ethernet Adapter",
1781 .bind = ax88179_bind,
1782 .unbind = ax88179_unbind,
1783 .status = ax88179_status,
1784 .link_reset = ax88179_link_reset,
1785 .reset = ax88179_net_reset,
1786 .stop = ax88179_stop,
1787 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1788 .rx_fixup = ax88179_rx_fixup,
1789 .tx_fixup = ax88179_tx_fixup,
1790 };
1791
1792 static const struct driver_info lenovo_info = {
1793 .description = "Lenovo OneLinkDock Gigabit LAN",
1794 .bind = ax88179_bind,
1795 .unbind = ax88179_unbind,
1796 .status = ax88179_status,
1797 .link_reset = ax88179_link_reset,
1798 .reset = ax88179_net_reset,
1799 .stop = ax88179_stop,
1800 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1801 .rx_fixup = ax88179_rx_fixup,
1802 .tx_fixup = ax88179_tx_fixup,
1803 };
1804
1805 static const struct driver_info belkin_info = {
1806 .description = "Belkin USB Ethernet Adapter",
1807 .bind = ax88179_bind,
1808 .unbind = ax88179_unbind,
1809 .status = ax88179_status,
1810 .link_reset = ax88179_link_reset,
1811 .reset = ax88179_net_reset,
1812 .stop = ax88179_stop,
1813 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1814 .rx_fixup = ax88179_rx_fixup,
1815 .tx_fixup = ax88179_tx_fixup,
1816 };
1817
1818 static const struct driver_info toshiba_info = {
1819 .description = "Toshiba USB Ethernet Adapter",
1820 .bind = ax88179_bind,
1821 .unbind = ax88179_unbind,
1822 .status = ax88179_status,
1823 .link_reset = ax88179_link_reset,
1824 .reset = ax88179_net_reset,
1825 .stop = ax88179_stop,
1826 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1827 .rx_fixup = ax88179_rx_fixup,
1828 .tx_fixup = ax88179_tx_fixup,
1829 };
1830
1831 static const struct driver_info mct_info = {
1832 .description = "MCT USB 3.0 Gigabit Ethernet Adapter",
1833 .bind = ax88179_bind,
1834 .unbind = ax88179_unbind,
1835 .status = ax88179_status,
1836 .link_reset = ax88179_link_reset,
1837 .reset = ax88179_net_reset,
1838 .stop = ax88179_stop,
1839 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1840 .rx_fixup = ax88179_rx_fixup,
1841 .tx_fixup = ax88179_tx_fixup,
1842 };
1843
1844 static const struct driver_info at_umc2000_info = {
1845 .description = "AT-UMC2000 USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter",
1846 .bind = ax88179_bind,
1847 .unbind = ax88179_unbind,
1848 .status = ax88179_status,
1849 .link_reset = ax88179_link_reset,
1850 .reset = ax88179_net_reset,
1851 .stop = ax88179_stop,
1852 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1853 .rx_fixup = ax88179_rx_fixup,
1854 .tx_fixup = ax88179_tx_fixup,
1855 };
1856
1857 static const struct driver_info at_umc200_info = {
1858 .description = "AT-UMC200 USB 3.0/USB 3.1 Gen 1 to Fast Ethernet Adapter",
1859 .bind = ax88179_bind,
1860 .unbind = ax88179_unbind,
1861 .status = ax88179_status,
1862 .link_reset = ax88179_link_reset,
1863 .reset = ax88179_net_reset,
1864 .stop = ax88179_stop,
1865 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1866 .rx_fixup = ax88179_rx_fixup,
1867 .tx_fixup = ax88179_tx_fixup,
1868 };
1869
1870 static const struct driver_info at_umc2000sp_info = {
1871 .description = "AT-UMC2000/SP USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter",
1872 .bind = ax88179_bind,
1873 .unbind = ax88179_unbind,
1874 .status = ax88179_status,
1875 .link_reset = ax88179_link_reset,
1876 .reset = ax88179_net_reset,
1877 .stop = ax88179_stop,
1878 .flags = FLAG_ETHER | FLAG_FRAMING_AX,
1879 .rx_fixup = ax88179_rx_fixup,
1880 .tx_fixup = ax88179_tx_fixup,
1881 };
1882
1883 static const struct usb_device_id products[] = {
1884 {
1885 /* ASIX AX88179 10/100/1000 */
1886 USB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x1790, 0xff, 0xff, 0),
1887 .driver_info = (unsigned long)&ax88179_info,
1888 }, {
1889 /* ASIX AX88178A 10/100/1000 */
1890 USB_DEVICE_AND_INTERFACE_INFO(0x0b95, 0x178a, 0xff, 0xff, 0),
1891 .driver_info = (unsigned long)&ax88178a_info,
1892 }, {
1893 /* Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller */
1894 USB_DEVICE_AND_INTERFACE_INFO(0x04b4, 0x3610, 0xff, 0xff, 0),
1895 .driver_info = (unsigned long)&cypress_GX3_info,
1896 }, {
1897 /* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
1898 USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x4a00, 0xff, 0xff, 0),
1899 .driver_info = (unsigned long)&dlink_dub1312_info,
1900 }, {
1901 /* Sitecom USB 3.0 to Gigabit Adapter */
1902 USB_DEVICE_AND_INTERFACE_INFO(0x0df6, 0x0072, 0xff, 0xff, 0),
1903 .driver_info = (unsigned long)&sitecom_info,
1904 }, {
1905 /* Samsung USB Ethernet Adapter */
1906 USB_DEVICE_AND_INTERFACE_INFO(0x04e8, 0xa100, 0xff, 0xff, 0),
1907 .driver_info = (unsigned long)&samsung_info,
1908 }, {
1909 /* Lenovo OneLinkDock Gigabit LAN */
1910 USB_DEVICE_AND_INTERFACE_INFO(0x17ef, 0x304b, 0xff, 0xff, 0),
1911 .driver_info = (unsigned long)&lenovo_info,
1912 }, {
1913 /* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */
1914 USB_DEVICE_AND_INTERFACE_INFO(0x050d, 0x0128, 0xff, 0xff, 0),
1915 .driver_info = (unsigned long)&belkin_info,
1916 }, {
1917 /* Toshiba USB 3.0 GBit Ethernet Adapter */
1918 USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x0a13, 0xff, 0xff, 0),
1919 .driver_info = (unsigned long)&toshiba_info,
1920 }, {
1921 /* Magic Control Technology U3-A9003 USB 3.0 Gigabit Ethernet Adapter */
1922 USB_DEVICE_AND_INTERFACE_INFO(0x0711, 0x0179, 0xff, 0xff, 0),
1923 .driver_info = (unsigned long)&mct_info,
1924 }, {
1925 /* Allied Telesis AT-UMC2000 USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter */
1926 USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x000e, 0xff, 0xff, 0),
1927 .driver_info = (unsigned long)&at_umc2000_info,
1928 }, {
1929 /* Allied Telesis AT-UMC200 USB 3.0/USB 3.1 Gen 1 to Fast Ethernet Adapter */
1930 USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x000f, 0xff, 0xff, 0),
1931 .driver_info = (unsigned long)&at_umc200_info,
1932 }, {
1933 /* Allied Telesis AT-UMC2000/SP USB 3.0/USB 3.1 Gen 1 to Gigabit Ethernet Adapter */
1934 USB_DEVICE_AND_INTERFACE_INFO(0x07c9, 0x0010, 0xff, 0xff, 0),
1935 .driver_info = (unsigned long)&at_umc2000sp_info,
1936 },
1937 { },
1938 };
1939 MODULE_DEVICE_TABLE(usb, products);
1940
1941 static struct usb_driver ax88179_178a_driver = {
1942 .name = "ax88179_178a",
1943 .id_table = products,
1944 .probe = usbnet_probe,
1945 .suspend = ax88179_suspend,
1946 .resume = ax88179_resume,
1947 .reset_resume = ax88179_resume,
1948 .disconnect = ax88179_disconnect,
1949 .supports_autosuspend = 1,
1950 .disable_hub_initiated_lpm = 1,
1951 };
1952
1953 module_usb_driver(ax88179_178a_driver);
1954
1955 MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
1956 MODULE_LICENSE("GPL");
1957