xref: /openbmc/linux/drivers/net/usb/ax88179_178a.c (revision d4fd6347)
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 #include <uapi/linux/mdio.h>
27 #include <linux/mdio.h>
28 
29 #define AX88179_PHY_ID				0x03
30 #define AX_EEPROM_LEN				0x100
31 #define AX88179_EEPROM_MAGIC			0x17900b95
32 #define AX_MCAST_FLTSIZE			8
33 #define AX_MAX_MCAST				64
34 #define AX_INT_PPLS_LINK			((u32)BIT(16))
35 #define AX_RXHDR_L4_TYPE_MASK			0x1c
36 #define AX_RXHDR_L4_TYPE_UDP			4
37 #define AX_RXHDR_L4_TYPE_TCP			16
38 #define AX_RXHDR_L3CSUM_ERR			2
39 #define AX_RXHDR_L4CSUM_ERR			1
40 #define AX_RXHDR_CRC_ERR			((u32)BIT(29))
41 #define AX_RXHDR_DROP_ERR			((u32)BIT(31))
42 #define AX_ACCESS_MAC				0x01
43 #define AX_ACCESS_PHY				0x02
44 #define AX_ACCESS_EEPROM			0x04
45 #define AX_ACCESS_EFUS				0x05
46 #define AX_PAUSE_WATERLVL_HIGH			0x54
47 #define AX_PAUSE_WATERLVL_LOW			0x55
48 
49 #define PHYSICAL_LINK_STATUS			0x02
50 	#define	AX_USB_SS		0x04
51 	#define	AX_USB_HS		0x02
52 
53 #define GENERAL_STATUS				0x03
54 /* Check AX88179 version. UA1:Bit2 = 0,  UA2:Bit2 = 1 */
55 	#define	AX_SECLD		0x04
56 
57 #define AX_SROM_ADDR				0x07
58 #define AX_SROM_CMD				0x0a
59 	#define EEP_RD			0x04
60 	#define EEP_BUSY		0x10
61 
62 #define AX_SROM_DATA_LOW			0x08
63 #define AX_SROM_DATA_HIGH			0x09
64 
65 #define AX_RX_CTL				0x0b
66 	#define AX_RX_CTL_DROPCRCERR	0x0100
67 	#define AX_RX_CTL_IPE		0x0200
68 	#define AX_RX_CTL_START		0x0080
69 	#define AX_RX_CTL_AP		0x0020
70 	#define AX_RX_CTL_AM		0x0010
71 	#define AX_RX_CTL_AB		0x0008
72 	#define AX_RX_CTL_AMALL		0x0002
73 	#define AX_RX_CTL_PRO		0x0001
74 	#define AX_RX_CTL_STOP		0x0000
75 
76 #define AX_NODE_ID				0x10
77 #define AX_MULFLTARY				0x16
78 
79 #define AX_MEDIUM_STATUS_MODE			0x22
80 	#define AX_MEDIUM_GIGAMODE	0x01
81 	#define AX_MEDIUM_FULL_DUPLEX	0x02
82 	#define AX_MEDIUM_EN_125MHZ	0x08
83 	#define AX_MEDIUM_RXFLOW_CTRLEN	0x10
84 	#define AX_MEDIUM_TXFLOW_CTRLEN	0x20
85 	#define AX_MEDIUM_RECEIVE_EN	0x100
86 	#define AX_MEDIUM_PS		0x200
87 	#define AX_MEDIUM_JUMBO_EN	0x8040
88 
89 #define AX_MONITOR_MOD				0x24
90 	#define AX_MONITOR_MODE_RWLC	0x02
91 	#define AX_MONITOR_MODE_RWMP	0x04
92 	#define AX_MONITOR_MODE_PMEPOL	0x20
93 	#define AX_MONITOR_MODE_PMETYPE	0x40
94 
95 #define AX_GPIO_CTRL				0x25
96 	#define AX_GPIO_CTRL_GPIO3EN	0x80
97 	#define AX_GPIO_CTRL_GPIO2EN	0x40
98 	#define AX_GPIO_CTRL_GPIO1EN	0x20
99 
100 #define AX_PHYPWR_RSTCTL			0x26
101 	#define AX_PHYPWR_RSTCTL_BZ	0x0010
102 	#define AX_PHYPWR_RSTCTL_IPRL	0x0020
103 	#define AX_PHYPWR_RSTCTL_AT	0x1000
104 
105 #define AX_RX_BULKIN_QCTRL			0x2e
106 #define AX_CLK_SELECT				0x33
107 	#define AX_CLK_SELECT_BCS	0x01
108 	#define AX_CLK_SELECT_ACS	0x02
109 	#define AX_CLK_SELECT_ULR	0x08
110 
111 #define AX_RXCOE_CTL				0x34
112 	#define AX_RXCOE_IP		0x01
113 	#define AX_RXCOE_TCP		0x02
114 	#define AX_RXCOE_UDP		0x04
115 	#define AX_RXCOE_TCPV6		0x20
116 	#define AX_RXCOE_UDPV6		0x40
117 
118 #define AX_TXCOE_CTL				0x35
119 	#define AX_TXCOE_IP		0x01
120 	#define AX_TXCOE_TCP		0x02
121 	#define AX_TXCOE_UDP		0x04
122 	#define AX_TXCOE_TCPV6		0x20
123 	#define AX_TXCOE_UDPV6		0x40
124 
125 #define AX_LEDCTRL				0x73
126 
127 #define GMII_PHY_PHYSR				0x11
128 	#define GMII_PHY_PHYSR_SMASK	0xc000
129 	#define GMII_PHY_PHYSR_GIGA	0x8000
130 	#define GMII_PHY_PHYSR_100	0x4000
131 	#define GMII_PHY_PHYSR_FULL	0x2000
132 	#define GMII_PHY_PHYSR_LINK	0x400
133 
134 #define GMII_LED_ACT				0x1a
135 	#define	GMII_LED_ACTIVE_MASK	0xff8f
136 	#define	GMII_LED0_ACTIVE	BIT(4)
137 	#define	GMII_LED1_ACTIVE	BIT(5)
138 	#define	GMII_LED2_ACTIVE	BIT(6)
139 
140 #define GMII_LED_LINK				0x1c
141 	#define	GMII_LED_LINK_MASK	0xf888
142 	#define	GMII_LED0_LINK_10	BIT(0)
143 	#define	GMII_LED0_LINK_100	BIT(1)
144 	#define	GMII_LED0_LINK_1000	BIT(2)
145 	#define	GMII_LED1_LINK_10	BIT(4)
146 	#define	GMII_LED1_LINK_100	BIT(5)
147 	#define	GMII_LED1_LINK_1000	BIT(6)
148 	#define	GMII_LED2_LINK_10	BIT(8)
149 	#define	GMII_LED2_LINK_100	BIT(9)
150 	#define	GMII_LED2_LINK_1000	BIT(10)
151 	#define	LED0_ACTIVE		BIT(0)
152 	#define	LED0_LINK_10		BIT(1)
153 	#define	LED0_LINK_100		BIT(2)
154 	#define	LED0_LINK_1000		BIT(3)
155 	#define	LED0_FD			BIT(4)
156 	#define	LED0_USB3_MASK		0x001f
157 	#define	LED1_ACTIVE		BIT(5)
158 	#define	LED1_LINK_10		BIT(6)
159 	#define	LED1_LINK_100		BIT(7)
160 	#define	LED1_LINK_1000		BIT(8)
161 	#define	LED1_FD			BIT(9)
162 	#define	LED1_USB3_MASK		0x03e0
163 	#define	LED2_ACTIVE		BIT(10)
164 	#define	LED2_LINK_1000		BIT(13)
165 	#define	LED2_LINK_100		BIT(12)
166 	#define	LED2_LINK_10		BIT(11)
167 	#define	LED2_FD			BIT(14)
168 	#define	LED_VALID		BIT(15)
169 	#define	LED2_USB3_MASK		0x7c00
170 
171 #define GMII_PHYPAGE				0x1e
172 #define GMII_PHY_PAGE_SELECT			0x1f
173 	#define GMII_PHY_PGSEL_EXT	0x0007
174 	#define GMII_PHY_PGSEL_PAGE0	0x0000
175 	#define GMII_PHY_PGSEL_PAGE3	0x0003
176 	#define GMII_PHY_PGSEL_PAGE5	0x0005
177 
178 struct ax88179_data {
179 	u8  eee_enabled;
180 	u8  eee_active;
181 	u16 rxctl;
182 	u16 reserved;
183 };
184 
185 struct ax88179_int_data {
186 	__le32 intdata1;
187 	__le32 intdata2;
188 };
189 
190 static const struct {
191 	unsigned char ctrl, timer_l, timer_h, size, ifg;
192 } AX88179_BULKIN_SIZE[] =	{
193 	{7, 0x4f, 0,	0x12, 0xff},
194 	{7, 0x20, 3,	0x16, 0xff},
195 	{7, 0xae, 7,	0x18, 0xff},
196 	{7, 0xcc, 0x4c, 0x18, 8},
197 };
198 
199 static int __ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
200 			      u16 size, void *data, int in_pm)
201 {
202 	int ret;
203 	int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
204 
205 	BUG_ON(!dev);
206 
207 	if (!in_pm)
208 		fn = usbnet_read_cmd;
209 	else
210 		fn = usbnet_read_cmd_nopm;
211 
212 	ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
213 		 value, index, data, size);
214 
215 	if (unlikely(ret < 0))
216 		netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n",
217 			    index, ret);
218 
219 	return ret;
220 }
221 
222 static int __ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
223 			       u16 size, void *data, int in_pm)
224 {
225 	int ret;
226 	int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
227 
228 	BUG_ON(!dev);
229 
230 	if (!in_pm)
231 		fn = usbnet_write_cmd;
232 	else
233 		fn = usbnet_write_cmd_nopm;
234 
235 	ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
236 		 value, index, data, size);
237 
238 	if (unlikely(ret < 0))
239 		netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n",
240 			    index, ret);
241 
242 	return ret;
243 }
244 
245 static void ax88179_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value,
246 				    u16 index, u16 size, void *data)
247 {
248 	u16 buf;
249 
250 	if (2 == size) {
251 		buf = *((u16 *)data);
252 		cpu_to_le16s(&buf);
253 		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
254 				       USB_RECIP_DEVICE, value, index, &buf,
255 				       size);
256 	} else {
257 		usbnet_write_cmd_async(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR |
258 				       USB_RECIP_DEVICE, value, index, data,
259 				       size);
260 	}
261 }
262 
263 static int ax88179_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
264 				 u16 index, u16 size, void *data)
265 {
266 	int ret;
267 
268 	if (2 == size) {
269 		u16 buf;
270 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
271 		le16_to_cpus(&buf);
272 		*((u16 *)data) = buf;
273 	} else if (4 == size) {
274 		u32 buf;
275 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 1);
276 		le32_to_cpus(&buf);
277 		*((u32 *)data) = buf;
278 	} else {
279 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 1);
280 	}
281 
282 	return ret;
283 }
284 
285 static int ax88179_write_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
286 				  u16 index, u16 size, void *data)
287 {
288 	int ret;
289 
290 	if (2 == size) {
291 		u16 buf;
292 		buf = *((u16 *)data);
293 		cpu_to_le16s(&buf);
294 		ret = __ax88179_write_cmd(dev, cmd, value, index,
295 					  size, &buf, 1);
296 	} else {
297 		ret = __ax88179_write_cmd(dev, cmd, value, index,
298 					  size, data, 1);
299 	}
300 
301 	return ret;
302 }
303 
304 static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
305 			    u16 size, void *data)
306 {
307 	int ret;
308 
309 	if (2 == size) {
310 		u16 buf;
311 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
312 		le16_to_cpus(&buf);
313 		*((u16 *)data) = buf;
314 	} else if (4 == size) {
315 		u32 buf;
316 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
317 		le32_to_cpus(&buf);
318 		*((u32 *)data) = buf;
319 	} else {
320 		ret = __ax88179_read_cmd(dev, cmd, value, index, size, data, 0);
321 	}
322 
323 	return ret;
324 }
325 
326 static int ax88179_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
327 			     u16 size, void *data)
328 {
329 	int ret;
330 
331 	if (2 == size) {
332 		u16 buf;
333 		buf = *((u16 *)data);
334 		cpu_to_le16s(&buf);
335 		ret = __ax88179_write_cmd(dev, cmd, value, index,
336 					  size, &buf, 0);
337 	} else {
338 		ret = __ax88179_write_cmd(dev, cmd, value, index,
339 					  size, data, 0);
340 	}
341 
342 	return ret;
343 }
344 
345 static void ax88179_status(struct usbnet *dev, struct urb *urb)
346 {
347 	struct ax88179_int_data *event;
348 	u32 link;
349 
350 	if (urb->actual_length < 8)
351 		return;
352 
353 	event = urb->transfer_buffer;
354 	le32_to_cpus((void *)&event->intdata1);
355 
356 	link = (((__force u32)event->intdata1) & AX_INT_PPLS_LINK) >> 16;
357 
358 	if (netif_carrier_ok(dev->net) != link) {
359 		usbnet_link_change(dev, link, 1);
360 		netdev_info(dev->net, "ax88179 - Link status is: %d\n", link);
361 	}
362 }
363 
364 static int ax88179_mdio_read(struct net_device *netdev, int phy_id, int loc)
365 {
366 	struct usbnet *dev = netdev_priv(netdev);
367 	u16 res;
368 
369 	ax88179_read_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
370 	return res;
371 }
372 
373 static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
374 			       int val)
375 {
376 	struct usbnet *dev = netdev_priv(netdev);
377 	u16 res = (u16) val;
378 
379 	ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
380 }
381 
382 static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
383 					   u16 devad)
384 {
385 	u16 tmp16;
386 	int ret;
387 
388 	tmp16 = devad;
389 	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
390 				MII_MMD_CTRL, 2, &tmp16);
391 
392 	tmp16 = prtad;
393 	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
394 				MII_MMD_DATA, 2, &tmp16);
395 
396 	tmp16 = devad | MII_MMD_CTRL_NOINCR;
397 	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
398 				MII_MMD_CTRL, 2, &tmp16);
399 
400 	return ret;
401 }
402 
403 static int
404 ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
405 {
406 	int ret;
407 	u16 tmp16;
408 
409 	ax88179_phy_mmd_indirect(dev, prtad, devad);
410 
411 	ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
412 			       MII_MMD_DATA, 2, &tmp16);
413 	if (ret < 0)
414 		return ret;
415 
416 	return tmp16;
417 }
418 
419 static int
420 ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
421 			       u16 data)
422 {
423 	int ret;
424 
425 	ax88179_phy_mmd_indirect(dev, prtad, devad);
426 
427 	ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
428 				MII_MMD_DATA, 2, &data);
429 
430 	if (ret < 0)
431 		return ret;
432 
433 	return 0;
434 }
435 
436 static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
437 {
438 	struct usbnet *dev = usb_get_intfdata(intf);
439 	u16 tmp16;
440 	u8 tmp8;
441 
442 	usbnet_suspend(intf, message);
443 
444 	/* Disable RX path */
445 	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
446 			      2, 2, &tmp16);
447 	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
448 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
449 			       2, 2, &tmp16);
450 
451 	/* Force bulk-in zero length */
452 	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
453 			      2, 2, &tmp16);
454 
455 	tmp16 |= AX_PHYPWR_RSTCTL_BZ | AX_PHYPWR_RSTCTL_IPRL;
456 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
457 			       2, 2, &tmp16);
458 
459 	/* change clock */
460 	tmp8 = 0;
461 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
462 
463 	/* Configure RX control register => stop operation */
464 	tmp16 = AX_RX_CTL_STOP;
465 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
466 
467 	return 0;
468 }
469 
470 /* This function is used to enable the autodetach function. */
471 /* This function is determined by offset 0x43 of EEPROM */
472 static int ax88179_auto_detach(struct usbnet *dev, int in_pm)
473 {
474 	u16 tmp16;
475 	u8 tmp8;
476 	int (*fnr)(struct usbnet *, u8, u16, u16, u16, void *);
477 	int (*fnw)(struct usbnet *, u8, u16, u16, u16, void *);
478 
479 	if (!in_pm) {
480 		fnr = ax88179_read_cmd;
481 		fnw = ax88179_write_cmd;
482 	} else {
483 		fnr = ax88179_read_cmd_nopm;
484 		fnw = ax88179_write_cmd_nopm;
485 	}
486 
487 	if (fnr(dev, AX_ACCESS_EEPROM, 0x43, 1, 2, &tmp16) < 0)
488 		return 0;
489 
490 	if ((tmp16 == 0xFFFF) || (!(tmp16 & 0x0100)))
491 		return 0;
492 
493 	/* Enable Auto Detach bit */
494 	tmp8 = 0;
495 	fnr(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
496 	tmp8 |= AX_CLK_SELECT_ULR;
497 	fnw(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
498 
499 	fnr(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
500 	tmp16 |= AX_PHYPWR_RSTCTL_AT;
501 	fnw(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
502 
503 	return 0;
504 }
505 
506 static int ax88179_resume(struct usb_interface *intf)
507 {
508 	struct usbnet *dev = usb_get_intfdata(intf);
509 	u16 tmp16;
510 	u8 tmp8;
511 
512 	usbnet_link_change(dev, 0, 0);
513 
514 	/* Power up ethernet PHY */
515 	tmp16 = 0;
516 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
517 			       2, 2, &tmp16);
518 	udelay(1000);
519 
520 	tmp16 = AX_PHYPWR_RSTCTL_IPRL;
521 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL,
522 			       2, 2, &tmp16);
523 	msleep(200);
524 
525 	/* Ethernet PHY Auto Detach*/
526 	ax88179_auto_detach(dev, 1);
527 
528 	/* Enable clock */
529 	ax88179_read_cmd_nopm(dev, AX_ACCESS_MAC,  AX_CLK_SELECT, 1, 1, &tmp8);
530 	tmp8 |= AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
531 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp8);
532 	msleep(100);
533 
534 	/* Configure RX control register => start operation */
535 	tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
536 		AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
537 	ax88179_write_cmd_nopm(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
538 
539 	return usbnet_resume(intf);
540 }
541 
542 static void
543 ax88179_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
544 {
545 	struct usbnet *dev = netdev_priv(net);
546 	u8 opt;
547 
548 	if (ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
549 			     1, 1, &opt) < 0) {
550 		wolinfo->supported = 0;
551 		wolinfo->wolopts = 0;
552 		return;
553 	}
554 
555 	wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
556 	wolinfo->wolopts = 0;
557 	if (opt & AX_MONITOR_MODE_RWLC)
558 		wolinfo->wolopts |= WAKE_PHY;
559 	if (opt & AX_MONITOR_MODE_RWMP)
560 		wolinfo->wolopts |= WAKE_MAGIC;
561 }
562 
563 static int
564 ax88179_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
565 {
566 	struct usbnet *dev = netdev_priv(net);
567 	u8 opt = 0;
568 
569 	if (wolinfo->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
570 		return -EINVAL;
571 
572 	if (wolinfo->wolopts & WAKE_PHY)
573 		opt |= AX_MONITOR_MODE_RWLC;
574 	if (wolinfo->wolopts & WAKE_MAGIC)
575 		opt |= AX_MONITOR_MODE_RWMP;
576 
577 	if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD,
578 			      1, 1, &opt) < 0)
579 		return -EINVAL;
580 
581 	return 0;
582 }
583 
584 static int ax88179_get_eeprom_len(struct net_device *net)
585 {
586 	return AX_EEPROM_LEN;
587 }
588 
589 static int
590 ax88179_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom,
591 		   u8 *data)
592 {
593 	struct usbnet *dev = netdev_priv(net);
594 	u16 *eeprom_buff;
595 	int first_word, last_word;
596 	int i, ret;
597 
598 	if (eeprom->len == 0)
599 		return -EINVAL;
600 
601 	eeprom->magic = AX88179_EEPROM_MAGIC;
602 
603 	first_word = eeprom->offset >> 1;
604 	last_word = (eeprom->offset + eeprom->len - 1) >> 1;
605 	eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16),
606 				    GFP_KERNEL);
607 	if (!eeprom_buff)
608 		return -ENOMEM;
609 
610 	/* ax88179/178A returns 2 bytes from eeprom on read */
611 	for (i = first_word; i <= last_word; i++) {
612 		ret = __ax88179_read_cmd(dev, AX_ACCESS_EEPROM, i, 1, 2,
613 					 &eeprom_buff[i - first_word],
614 					 0);
615 		if (ret < 0) {
616 			kfree(eeprom_buff);
617 			return -EIO;
618 		}
619 	}
620 
621 	memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
622 	kfree(eeprom_buff);
623 	return 0;
624 }
625 
626 static int ax88179_get_link_ksettings(struct net_device *net,
627 				      struct ethtool_link_ksettings *cmd)
628 {
629 	struct usbnet *dev = netdev_priv(net);
630 
631 	mii_ethtool_get_link_ksettings(&dev->mii, cmd);
632 
633 	return 0;
634 }
635 
636 static int ax88179_set_link_ksettings(struct net_device *net,
637 				      const struct ethtool_link_ksettings *cmd)
638 {
639 	struct usbnet *dev = netdev_priv(net);
640 	return mii_ethtool_set_link_ksettings(&dev->mii, cmd);
641 }
642 
643 static int
644 ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
645 {
646 	int val;
647 
648 	/* Get Supported EEE */
649 	val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
650 					    MDIO_MMD_PCS);
651 	if (val < 0)
652 		return val;
653 	data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
654 
655 	/* Get advertisement EEE */
656 	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
657 					    MDIO_MMD_AN);
658 	if (val < 0)
659 		return val;
660 	data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
661 
662 	/* Get LP advertisement EEE */
663 	val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
664 					    MDIO_MMD_AN);
665 	if (val < 0)
666 		return val;
667 	data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
668 
669 	return 0;
670 }
671 
672 static int
673 ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
674 {
675 	u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
676 
677 	return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
678 					      MDIO_MMD_AN, tmp16);
679 }
680 
681 static int ax88179_chk_eee(struct usbnet *dev)
682 {
683 	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
684 	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
685 
686 	mii_ethtool_gset(&dev->mii, &ecmd);
687 
688 	if (ecmd.duplex & DUPLEX_FULL) {
689 		int eee_lp, eee_cap, eee_adv;
690 		u32 lp, cap, adv, supported = 0;
691 
692 		eee_cap = ax88179_phy_read_mmd_indirect(dev,
693 							MDIO_PCS_EEE_ABLE,
694 							MDIO_MMD_PCS);
695 		if (eee_cap < 0) {
696 			priv->eee_active = 0;
697 			return false;
698 		}
699 
700 		cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
701 		if (!cap) {
702 			priv->eee_active = 0;
703 			return false;
704 		}
705 
706 		eee_lp = ax88179_phy_read_mmd_indirect(dev,
707 						       MDIO_AN_EEE_LPABLE,
708 						       MDIO_MMD_AN);
709 		if (eee_lp < 0) {
710 			priv->eee_active = 0;
711 			return false;
712 		}
713 
714 		eee_adv = ax88179_phy_read_mmd_indirect(dev,
715 							MDIO_AN_EEE_ADV,
716 							MDIO_MMD_AN);
717 
718 		if (eee_adv < 0) {
719 			priv->eee_active = 0;
720 			return false;
721 		}
722 
723 		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
724 		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
725 		supported = (ecmd.speed == SPEED_1000) ?
726 			     SUPPORTED_1000baseT_Full :
727 			     SUPPORTED_100baseT_Full;
728 
729 		if (!(lp & adv & supported)) {
730 			priv->eee_active = 0;
731 			return false;
732 		}
733 
734 		priv->eee_active = 1;
735 		return true;
736 	}
737 
738 	priv->eee_active = 0;
739 	return false;
740 }
741 
742 static void ax88179_disable_eee(struct usbnet *dev)
743 {
744 	u16 tmp16;
745 
746 	tmp16 = GMII_PHY_PGSEL_PAGE3;
747 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
748 			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
749 
750 	tmp16 = 0x3246;
751 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
752 			  MII_PHYADDR, 2, &tmp16);
753 
754 	tmp16 = GMII_PHY_PGSEL_PAGE0;
755 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
756 			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
757 }
758 
759 static void ax88179_enable_eee(struct usbnet *dev)
760 {
761 	u16 tmp16;
762 
763 	tmp16 = GMII_PHY_PGSEL_PAGE3;
764 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
765 			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
766 
767 	tmp16 = 0x3247;
768 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
769 			  MII_PHYADDR, 2, &tmp16);
770 
771 	tmp16 = GMII_PHY_PGSEL_PAGE5;
772 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
773 			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
774 
775 	tmp16 = 0x0680;
776 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
777 			  MII_BMSR, 2, &tmp16);
778 
779 	tmp16 = GMII_PHY_PGSEL_PAGE0;
780 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
781 			  GMII_PHY_PAGE_SELECT, 2, &tmp16);
782 }
783 
784 static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
785 {
786 	struct usbnet *dev = netdev_priv(net);
787 	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
788 
789 	edata->eee_enabled = priv->eee_enabled;
790 	edata->eee_active = priv->eee_active;
791 
792 	return ax88179_ethtool_get_eee(dev, edata);
793 }
794 
795 static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
796 {
797 	struct usbnet *dev = netdev_priv(net);
798 	struct ax88179_data *priv = (struct ax88179_data *)dev->data;
799 	int ret = -EOPNOTSUPP;
800 
801 	priv->eee_enabled = edata->eee_enabled;
802 	if (!priv->eee_enabled) {
803 		ax88179_disable_eee(dev);
804 	} else {
805 		priv->eee_enabled = ax88179_chk_eee(dev);
806 		if (!priv->eee_enabled)
807 			return -EOPNOTSUPP;
808 
809 		ax88179_enable_eee(dev);
810 	}
811 
812 	ret = ax88179_ethtool_set_eee(dev, edata);
813 	if (ret)
814 		return ret;
815 
816 	mii_nway_restart(&dev->mii);
817 
818 	usbnet_link_change(dev, 0, 0);
819 
820 	return ret;
821 }
822 
823 static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
824 {
825 	struct usbnet *dev = netdev_priv(net);
826 	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
827 }
828 
829 static const struct ethtool_ops ax88179_ethtool_ops = {
830 	.get_link		= ethtool_op_get_link,
831 	.get_msglevel		= usbnet_get_msglevel,
832 	.set_msglevel		= usbnet_set_msglevel,
833 	.get_wol		= ax88179_get_wol,
834 	.set_wol		= ax88179_set_wol,
835 	.get_eeprom_len		= ax88179_get_eeprom_len,
836 	.get_eeprom		= ax88179_get_eeprom,
837 	.get_eee		= ax88179_get_eee,
838 	.set_eee		= ax88179_set_eee,
839 	.nway_reset		= usbnet_nway_reset,
840 	.get_link_ksettings	= ax88179_get_link_ksettings,
841 	.set_link_ksettings	= ax88179_set_link_ksettings,
842 };
843 
844 static void ax88179_set_multicast(struct net_device *net)
845 {
846 	struct usbnet *dev = netdev_priv(net);
847 	struct ax88179_data *data = (struct ax88179_data *)dev->data;
848 	u8 *m_filter = ((u8 *)dev->data) + 12;
849 
850 	data->rxctl = (AX_RX_CTL_START | AX_RX_CTL_AB | AX_RX_CTL_IPE);
851 
852 	if (net->flags & IFF_PROMISC) {
853 		data->rxctl |= AX_RX_CTL_PRO;
854 	} else if (net->flags & IFF_ALLMULTI ||
855 		   netdev_mc_count(net) > AX_MAX_MCAST) {
856 		data->rxctl |= AX_RX_CTL_AMALL;
857 	} else if (netdev_mc_empty(net)) {
858 		/* just broadcast and directed */
859 	} else {
860 		/* We use the 20 byte dev->data for our 8 byte filter buffer
861 		 * to avoid allocating memory that is tricky to free later
862 		 */
863 		u32 crc_bits;
864 		struct netdev_hw_addr *ha;
865 
866 		memset(m_filter, 0, AX_MCAST_FLTSIZE);
867 
868 		netdev_for_each_mc_addr(ha, net) {
869 			crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26;
870 			*(m_filter + (crc_bits >> 3)) |= (1 << (crc_bits & 7));
871 		}
872 
873 		ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_MULFLTARY,
874 					AX_MCAST_FLTSIZE, AX_MCAST_FLTSIZE,
875 					m_filter);
876 
877 		data->rxctl |= AX_RX_CTL_AM;
878 	}
879 
880 	ax88179_write_cmd_async(dev, AX_ACCESS_MAC, AX_RX_CTL,
881 				2, 2, &data->rxctl);
882 }
883 
884 static int
885 ax88179_set_features(struct net_device *net, netdev_features_t features)
886 {
887 	u8 tmp;
888 	struct usbnet *dev = netdev_priv(net);
889 	netdev_features_t changed = net->features ^ features;
890 
891 	if (changed & NETIF_F_IP_CSUM) {
892 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
893 		tmp ^= AX_TXCOE_TCP | AX_TXCOE_UDP;
894 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
895 	}
896 
897 	if (changed & NETIF_F_IPV6_CSUM) {
898 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
899 		tmp ^= AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
900 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, &tmp);
901 	}
902 
903 	if (changed & NETIF_F_RXCSUM) {
904 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
905 		tmp ^= AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
906 		       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
907 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, &tmp);
908 	}
909 
910 	return 0;
911 }
912 
913 static int ax88179_change_mtu(struct net_device *net, int new_mtu)
914 {
915 	struct usbnet *dev = netdev_priv(net);
916 	u16 tmp16;
917 
918 	net->mtu = new_mtu;
919 	dev->hard_mtu = net->mtu + net->hard_header_len;
920 
921 	if (net->mtu > 1500) {
922 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
923 				 2, 2, &tmp16);
924 		tmp16 |= AX_MEDIUM_JUMBO_EN;
925 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
926 				  2, 2, &tmp16);
927 	} else {
928 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
929 				 2, 2, &tmp16);
930 		tmp16 &= ~AX_MEDIUM_JUMBO_EN;
931 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
932 				  2, 2, &tmp16);
933 	}
934 
935 	/* max qlen depend on hard_mtu and rx_urb_size */
936 	usbnet_update_max_qlen(dev);
937 
938 	return 0;
939 }
940 
941 static int ax88179_set_mac_addr(struct net_device *net, void *p)
942 {
943 	struct usbnet *dev = netdev_priv(net);
944 	struct sockaddr *addr = p;
945 	int ret;
946 
947 	if (netif_running(net))
948 		return -EBUSY;
949 	if (!is_valid_ether_addr(addr->sa_data))
950 		return -EADDRNOTAVAIL;
951 
952 	memcpy(net->dev_addr, addr->sa_data, ETH_ALEN);
953 
954 	/* Set the MAC address */
955 	ret = ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
956 				 ETH_ALEN, net->dev_addr);
957 	if (ret < 0)
958 		return ret;
959 
960 	return 0;
961 }
962 
963 static const struct net_device_ops ax88179_netdev_ops = {
964 	.ndo_open		= usbnet_open,
965 	.ndo_stop		= usbnet_stop,
966 	.ndo_start_xmit		= usbnet_start_xmit,
967 	.ndo_tx_timeout		= usbnet_tx_timeout,
968 	.ndo_get_stats64	= usbnet_get_stats64,
969 	.ndo_change_mtu		= ax88179_change_mtu,
970 	.ndo_set_mac_address	= ax88179_set_mac_addr,
971 	.ndo_validate_addr	= eth_validate_addr,
972 	.ndo_do_ioctl		= ax88179_ioctl,
973 	.ndo_set_rx_mode	= ax88179_set_multicast,
974 	.ndo_set_features	= ax88179_set_features,
975 };
976 
977 static int ax88179_check_eeprom(struct usbnet *dev)
978 {
979 	u8 i, buf, eeprom[20];
980 	u16 csum, delay = HZ / 10;
981 	unsigned long jtimeout;
982 
983 	/* Read EEPROM content */
984 	for (i = 0; i < 6; i++) {
985 		buf = i;
986 		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
987 				      1, 1, &buf) < 0)
988 			return -EINVAL;
989 
990 		buf = EEP_RD;
991 		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
992 				      1, 1, &buf) < 0)
993 			return -EINVAL;
994 
995 		jtimeout = jiffies + delay;
996 		do {
997 			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
998 					 1, 1, &buf);
999 
1000 			if (time_after(jiffies, jtimeout))
1001 				return -EINVAL;
1002 
1003 		} while (buf & EEP_BUSY);
1004 
1005 		__ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1006 				   2, 2, &eeprom[i * 2], 0);
1007 
1008 		if ((i == 0) && (eeprom[0] == 0xFF))
1009 			return -EINVAL;
1010 	}
1011 
1012 	csum = eeprom[6] + eeprom[7] + eeprom[8] + eeprom[9];
1013 	csum = (csum >> 8) + (csum & 0xff);
1014 	if ((csum + eeprom[10]) != 0xff)
1015 		return -EINVAL;
1016 
1017 	return 0;
1018 }
1019 
1020 static int ax88179_check_efuse(struct usbnet *dev, u16 *ledmode)
1021 {
1022 	u8	i;
1023 	u8	efuse[64];
1024 	u16	csum = 0;
1025 
1026 	if (ax88179_read_cmd(dev, AX_ACCESS_EFUS, 0, 64, 64, efuse) < 0)
1027 		return -EINVAL;
1028 
1029 	if (*efuse == 0xFF)
1030 		return -EINVAL;
1031 
1032 	for (i = 0; i < 64; i++)
1033 		csum = csum + efuse[i];
1034 
1035 	while (csum > 255)
1036 		csum = (csum & 0x00FF) + ((csum >> 8) & 0x00FF);
1037 
1038 	if (csum != 0xFF)
1039 		return -EINVAL;
1040 
1041 	*ledmode = (efuse[51] << 8) | efuse[52];
1042 
1043 	return 0;
1044 }
1045 
1046 static int ax88179_convert_old_led(struct usbnet *dev, u16 *ledvalue)
1047 {
1048 	u16 led;
1049 
1050 	/* Loaded the old eFuse LED Mode */
1051 	if (ax88179_read_cmd(dev, AX_ACCESS_EEPROM, 0x3C, 1, 2, &led) < 0)
1052 		return -EINVAL;
1053 
1054 	led >>= 8;
1055 	switch (led) {
1056 	case 0xFF:
1057 		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1058 		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1059 		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1060 		break;
1061 	case 0xFE:
1062 		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 | LED_VALID;
1063 		break;
1064 	case 0xFD:
1065 		led = LED0_ACTIVE | LED1_LINK_1000 | LED2_LINK_100 |
1066 		      LED2_LINK_10 | LED_VALID;
1067 		break;
1068 	case 0xFC:
1069 		led = LED0_ACTIVE | LED1_ACTIVE | LED1_LINK_1000 | LED2_ACTIVE |
1070 		      LED2_LINK_100 | LED2_LINK_10 | LED_VALID;
1071 		break;
1072 	default:
1073 		led = LED0_ACTIVE | LED1_LINK_10 | LED1_LINK_100 |
1074 		      LED1_LINK_1000 | LED2_ACTIVE | LED2_LINK_10 |
1075 		      LED2_LINK_100 | LED2_LINK_1000 | LED_VALID;
1076 		break;
1077 	}
1078 
1079 	*ledvalue = led;
1080 
1081 	return 0;
1082 }
1083 
1084 static int ax88179_led_setting(struct usbnet *dev)
1085 {
1086 	u8 ledfd, value = 0;
1087 	u16 tmp, ledact, ledlink, ledvalue = 0, delay = HZ / 10;
1088 	unsigned long jtimeout;
1089 
1090 	/* Check AX88179 version. UA1 or UA2*/
1091 	ax88179_read_cmd(dev, AX_ACCESS_MAC, GENERAL_STATUS, 1, 1, &value);
1092 
1093 	if (!(value & AX_SECLD)) {	/* UA1 */
1094 		value = AX_GPIO_CTRL_GPIO3EN | AX_GPIO_CTRL_GPIO2EN |
1095 			AX_GPIO_CTRL_GPIO1EN;
1096 		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_GPIO_CTRL,
1097 				      1, 1, &value) < 0)
1098 			return -EINVAL;
1099 	}
1100 
1101 	/* Check EEPROM */
1102 	if (!ax88179_check_eeprom(dev)) {
1103 		value = 0x42;
1104 		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_ADDR,
1105 				      1, 1, &value) < 0)
1106 			return -EINVAL;
1107 
1108 		value = EEP_RD;
1109 		if (ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1110 				      1, 1, &value) < 0)
1111 			return -EINVAL;
1112 
1113 		jtimeout = jiffies + delay;
1114 		do {
1115 			ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_CMD,
1116 					 1, 1, &value);
1117 
1118 			if (time_after(jiffies, jtimeout))
1119 				return -EINVAL;
1120 
1121 		} while (value & EEP_BUSY);
1122 
1123 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_HIGH,
1124 				 1, 1, &value);
1125 		ledvalue = (value << 8);
1126 
1127 		ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_SROM_DATA_LOW,
1128 				 1, 1, &value);
1129 		ledvalue |= value;
1130 
1131 		/* load internal ROM for defaule setting */
1132 		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1133 			ax88179_convert_old_led(dev, &ledvalue);
1134 
1135 	} else if (!ax88179_check_efuse(dev, &ledvalue)) {
1136 		if ((ledvalue == 0xFFFF) || ((ledvalue & LED_VALID) == 0))
1137 			ax88179_convert_old_led(dev, &ledvalue);
1138 	} else {
1139 		ax88179_convert_old_led(dev, &ledvalue);
1140 	}
1141 
1142 	tmp = GMII_PHY_PGSEL_EXT;
1143 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1144 			  GMII_PHY_PAGE_SELECT, 2, &tmp);
1145 
1146 	tmp = 0x2c;
1147 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1148 			  GMII_PHYPAGE, 2, &tmp);
1149 
1150 	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1151 			 GMII_LED_ACT, 2, &ledact);
1152 
1153 	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1154 			 GMII_LED_LINK, 2, &ledlink);
1155 
1156 	ledact &= GMII_LED_ACTIVE_MASK;
1157 	ledlink &= GMII_LED_LINK_MASK;
1158 
1159 	if (ledvalue & LED0_ACTIVE)
1160 		ledact |= GMII_LED0_ACTIVE;
1161 
1162 	if (ledvalue & LED1_ACTIVE)
1163 		ledact |= GMII_LED1_ACTIVE;
1164 
1165 	if (ledvalue & LED2_ACTIVE)
1166 		ledact |= GMII_LED2_ACTIVE;
1167 
1168 	if (ledvalue & LED0_LINK_10)
1169 		ledlink |= GMII_LED0_LINK_10;
1170 
1171 	if (ledvalue & LED1_LINK_10)
1172 		ledlink |= GMII_LED1_LINK_10;
1173 
1174 	if (ledvalue & LED2_LINK_10)
1175 		ledlink |= GMII_LED2_LINK_10;
1176 
1177 	if (ledvalue & LED0_LINK_100)
1178 		ledlink |= GMII_LED0_LINK_100;
1179 
1180 	if (ledvalue & LED1_LINK_100)
1181 		ledlink |= GMII_LED1_LINK_100;
1182 
1183 	if (ledvalue & LED2_LINK_100)
1184 		ledlink |= GMII_LED2_LINK_100;
1185 
1186 	if (ledvalue & LED0_LINK_1000)
1187 		ledlink |= GMII_LED0_LINK_1000;
1188 
1189 	if (ledvalue & LED1_LINK_1000)
1190 		ledlink |= GMII_LED1_LINK_1000;
1191 
1192 	if (ledvalue & LED2_LINK_1000)
1193 		ledlink |= GMII_LED2_LINK_1000;
1194 
1195 	tmp = ledact;
1196 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1197 			  GMII_LED_ACT, 2, &tmp);
1198 
1199 	tmp = ledlink;
1200 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1201 			  GMII_LED_LINK, 2, &tmp);
1202 
1203 	tmp = GMII_PHY_PGSEL_PAGE0;
1204 	ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1205 			  GMII_PHY_PAGE_SELECT, 2, &tmp);
1206 
1207 	/* LED full duplex setting */
1208 	ledfd = 0;
1209 	if (ledvalue & LED0_FD)
1210 		ledfd |= 0x01;
1211 	else if ((ledvalue & LED0_USB3_MASK) == 0)
1212 		ledfd |= 0x02;
1213 
1214 	if (ledvalue & LED1_FD)
1215 		ledfd |= 0x04;
1216 	else if ((ledvalue & LED1_USB3_MASK) == 0)
1217 		ledfd |= 0x08;
1218 
1219 	if (ledvalue & LED2_FD)
1220 		ledfd |= 0x10;
1221 	else if ((ledvalue & LED2_USB3_MASK) == 0)
1222 		ledfd |= 0x20;
1223 
1224 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_LEDCTRL, 1, 1, &ledfd);
1225 
1226 	return 0;
1227 }
1228 
1229 static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
1230 {
1231 	u8 buf[5];
1232 	u16 *tmp16;
1233 	u8 *tmp;
1234 	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1235 	struct ethtool_eee eee_data;
1236 
1237 	usbnet_get_endpoints(dev, intf);
1238 
1239 	tmp16 = (u16 *)buf;
1240 	tmp = (u8 *)buf;
1241 
1242 	memset(ax179_data, 0, sizeof(*ax179_data));
1243 
1244 	/* Power up ethernet PHY */
1245 	*tmp16 = 0;
1246 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1247 	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1248 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1249 	msleep(200);
1250 
1251 	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1252 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1253 	msleep(100);
1254 
1255 	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN,
1256 			 ETH_ALEN, dev->net->dev_addr);
1257 	memcpy(dev->net->perm_addr, dev->net->dev_addr, ETH_ALEN);
1258 
1259 	/* RX bulk configuration */
1260 	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1261 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1262 
1263 	dev->rx_urb_size = 1024 * 20;
1264 
1265 	*tmp = 0x34;
1266 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1267 
1268 	*tmp = 0x52;
1269 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1270 			  1, 1, tmp);
1271 
1272 	dev->net->netdev_ops = &ax88179_netdev_ops;
1273 	dev->net->ethtool_ops = &ax88179_ethtool_ops;
1274 	dev->net->needed_headroom = 8;
1275 	dev->net->max_mtu = 4088;
1276 
1277 	/* Initialize MII structure */
1278 	dev->mii.dev = dev->net;
1279 	dev->mii.mdio_read = ax88179_mdio_read;
1280 	dev->mii.mdio_write = ax88179_mdio_write;
1281 	dev->mii.phy_id_mask = 0xff;
1282 	dev->mii.reg_num_mask = 0xff;
1283 	dev->mii.phy_id = 0x03;
1284 	dev->mii.supports_gmii = 1;
1285 
1286 	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1287 			      NETIF_F_RXCSUM;
1288 
1289 	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1290 				 NETIF_F_RXCSUM;
1291 
1292 	/* Enable checksum offload */
1293 	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1294 	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1295 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1296 
1297 	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1298 	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1299 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1300 
1301 	/* Configure RX control register => start operation */
1302 	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1303 		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1304 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1305 
1306 	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1307 	       AX_MONITOR_MODE_RWMP;
1308 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1309 
1310 	/* Configure default medium type => giga */
1311 	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1312 		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1313 		 AX_MEDIUM_GIGAMODE;
1314 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1315 			  2, 2, tmp16);
1316 
1317 	ax88179_led_setting(dev);
1318 
1319 	ax179_data->eee_enabled = 0;
1320 	ax179_data->eee_active = 0;
1321 
1322 	ax88179_disable_eee(dev);
1323 
1324 	ax88179_ethtool_get_eee(dev, &eee_data);
1325 	eee_data.advertised = 0;
1326 	ax88179_ethtool_set_eee(dev, &eee_data);
1327 
1328 	/* Restart autoneg */
1329 	mii_nway_restart(&dev->mii);
1330 
1331 	usbnet_link_change(dev, 0, 0);
1332 
1333 	return 0;
1334 }
1335 
1336 static void ax88179_unbind(struct usbnet *dev, struct usb_interface *intf)
1337 {
1338 	u16 tmp16;
1339 
1340 	/* Configure RX control register => stop operation */
1341 	tmp16 = AX_RX_CTL_STOP;
1342 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &tmp16);
1343 
1344 	tmp16 = 0;
1345 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, &tmp16);
1346 
1347 	/* Power down ethernet PHY */
1348 	tmp16 = 0;
1349 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, &tmp16);
1350 }
1351 
1352 static void
1353 ax88179_rx_checksum(struct sk_buff *skb, u32 *pkt_hdr)
1354 {
1355 	skb->ip_summed = CHECKSUM_NONE;
1356 
1357 	/* checksum error bit is set */
1358 	if ((*pkt_hdr & AX_RXHDR_L3CSUM_ERR) ||
1359 	    (*pkt_hdr & AX_RXHDR_L4CSUM_ERR))
1360 		return;
1361 
1362 	/* It must be a TCP or UDP packet with a valid checksum */
1363 	if (((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_TCP) ||
1364 	    ((*pkt_hdr & AX_RXHDR_L4_TYPE_MASK) == AX_RXHDR_L4_TYPE_UDP))
1365 		skb->ip_summed = CHECKSUM_UNNECESSARY;
1366 }
1367 
1368 static int ax88179_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1369 {
1370 	struct sk_buff *ax_skb;
1371 	int pkt_cnt;
1372 	u32 rx_hdr;
1373 	u16 hdr_off;
1374 	u32 *pkt_hdr;
1375 
1376 	/* This check is no longer done by usbnet */
1377 	if (skb->len < dev->net->hard_header_len)
1378 		return 0;
1379 
1380 	skb_trim(skb, skb->len - 4);
1381 	memcpy(&rx_hdr, skb_tail_pointer(skb), 4);
1382 	le32_to_cpus(&rx_hdr);
1383 
1384 	pkt_cnt = (u16)rx_hdr;
1385 	hdr_off = (u16)(rx_hdr >> 16);
1386 	pkt_hdr = (u32 *)(skb->data + hdr_off);
1387 
1388 	while (pkt_cnt--) {
1389 		u16 pkt_len;
1390 
1391 		le32_to_cpus(pkt_hdr);
1392 		pkt_len = (*pkt_hdr >> 16) & 0x1fff;
1393 
1394 		/* Check CRC or runt packet */
1395 		if ((*pkt_hdr & AX_RXHDR_CRC_ERR) ||
1396 		    (*pkt_hdr & AX_RXHDR_DROP_ERR)) {
1397 			skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1398 			pkt_hdr++;
1399 			continue;
1400 		}
1401 
1402 		if (pkt_cnt == 0) {
1403 			/* Skip IP alignment psudo header */
1404 			skb_pull(skb, 2);
1405 			skb->len = pkt_len;
1406 			skb_set_tail_pointer(skb, pkt_len);
1407 			skb->truesize = pkt_len + sizeof(struct sk_buff);
1408 			ax88179_rx_checksum(skb, pkt_hdr);
1409 			return 1;
1410 		}
1411 
1412 		ax_skb = skb_clone(skb, GFP_ATOMIC);
1413 		if (ax_skb) {
1414 			ax_skb->len = pkt_len;
1415 			ax_skb->data = skb->data + 2;
1416 			skb_set_tail_pointer(ax_skb, pkt_len);
1417 			ax_skb->truesize = pkt_len + sizeof(struct sk_buff);
1418 			ax88179_rx_checksum(ax_skb, pkt_hdr);
1419 			usbnet_skb_return(dev, ax_skb);
1420 		} else {
1421 			return 0;
1422 		}
1423 
1424 		skb_pull(skb, (pkt_len + 7) & 0xFFF8);
1425 		pkt_hdr++;
1426 	}
1427 	return 1;
1428 }
1429 
1430 static struct sk_buff *
1431 ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
1432 {
1433 	u32 tx_hdr1, tx_hdr2;
1434 	int frame_size = dev->maxpacket;
1435 	int mss = skb_shinfo(skb)->gso_size;
1436 	int headroom;
1437 
1438 	tx_hdr1 = skb->len;
1439 	tx_hdr2 = mss;
1440 	if (((skb->len + 8) % frame_size) == 0)
1441 		tx_hdr2 |= 0x80008000;	/* Enable padding */
1442 
1443 	headroom = skb_headroom(skb) - 8;
1444 
1445 	if ((skb_header_cloned(skb) || headroom < 0) &&
1446 	    pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
1447 		dev_kfree_skb_any(skb);
1448 		return NULL;
1449 	}
1450 
1451 	skb_push(skb, 4);
1452 	cpu_to_le32s(&tx_hdr2);
1453 	skb_copy_to_linear_data(skb, &tx_hdr2, 4);
1454 
1455 	skb_push(skb, 4);
1456 	cpu_to_le32s(&tx_hdr1);
1457 	skb_copy_to_linear_data(skb, &tx_hdr1, 4);
1458 
1459 	return skb;
1460 }
1461 
1462 static int ax88179_link_reset(struct usbnet *dev)
1463 {
1464 	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1465 	u8 tmp[5], link_sts;
1466 	u16 mode, tmp16, delay = HZ / 10;
1467 	u32 tmp32 = 0x40000000;
1468 	unsigned long jtimeout;
1469 
1470 	jtimeout = jiffies + delay;
1471 	while (tmp32 & 0x40000000) {
1472 		mode = 0;
1473 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, &mode);
1474 		ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2,
1475 				  &ax179_data->rxctl);
1476 
1477 		/*link up, check the usb device control TX FIFO full or empty*/
1478 		ax88179_read_cmd(dev, 0x81, 0x8c, 0, 4, &tmp32);
1479 
1480 		if (time_after(jiffies, jtimeout))
1481 			return 0;
1482 	}
1483 
1484 	mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1485 	       AX_MEDIUM_RXFLOW_CTRLEN;
1486 
1487 	ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
1488 			 1, 1, &link_sts);
1489 
1490 	ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
1491 			 GMII_PHY_PHYSR, 2, &tmp16);
1492 
1493 	if (!(tmp16 & GMII_PHY_PHYSR_LINK)) {
1494 		return 0;
1495 	} else if (GMII_PHY_PHYSR_GIGA == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1496 		mode |= AX_MEDIUM_GIGAMODE | AX_MEDIUM_EN_125MHZ;
1497 		if (dev->net->mtu > 1500)
1498 			mode |= AX_MEDIUM_JUMBO_EN;
1499 
1500 		if (link_sts & AX_USB_SS)
1501 			memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1502 		else if (link_sts & AX_USB_HS)
1503 			memcpy(tmp, &AX88179_BULKIN_SIZE[1], 5);
1504 		else
1505 			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1506 	} else if (GMII_PHY_PHYSR_100 == (tmp16 & GMII_PHY_PHYSR_SMASK)) {
1507 		mode |= AX_MEDIUM_PS;
1508 
1509 		if (link_sts & (AX_USB_SS | AX_USB_HS))
1510 			memcpy(tmp, &AX88179_BULKIN_SIZE[2], 5);
1511 		else
1512 			memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1513 	} else {
1514 		memcpy(tmp, &AX88179_BULKIN_SIZE[3], 5);
1515 	}
1516 
1517 	/* RX bulk configuration */
1518 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1519 
1520 	dev->rx_urb_size = (1024 * (tmp[3] + 2));
1521 
1522 	if (tmp16 & GMII_PHY_PHYSR_FULL)
1523 		mode |= AX_MEDIUM_FULL_DUPLEX;
1524 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1525 			  2, 2, &mode);
1526 
1527 	ax179_data->eee_enabled = ax88179_chk_eee(dev);
1528 
1529 	netif_carrier_on(dev->net);
1530 
1531 	return 0;
1532 }
1533 
1534 static int ax88179_reset(struct usbnet *dev)
1535 {
1536 	u8 buf[5];
1537 	u16 *tmp16;
1538 	u8 *tmp;
1539 	struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
1540 	struct ethtool_eee eee_data;
1541 
1542 	tmp16 = (u16 *)buf;
1543 	tmp = (u8 *)buf;
1544 
1545 	/* Power up ethernet PHY */
1546 	*tmp16 = 0;
1547 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1548 
1549 	*tmp16 = AX_PHYPWR_RSTCTL_IPRL;
1550 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PHYPWR_RSTCTL, 2, 2, tmp16);
1551 	msleep(200);
1552 
1553 	*tmp = AX_CLK_SELECT_ACS | AX_CLK_SELECT_BCS;
1554 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_CLK_SELECT, 1, 1, tmp);
1555 	msleep(100);
1556 
1557 	/* Ethernet PHY Auto Detach*/
1558 	ax88179_auto_detach(dev, 0);
1559 
1560 	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_NODE_ID, ETH_ALEN, ETH_ALEN,
1561 			 dev->net->dev_addr);
1562 
1563 	/* RX bulk configuration */
1564 	memcpy(tmp, &AX88179_BULKIN_SIZE[0], 5);
1565 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_BULKIN_QCTRL, 5, 5, tmp);
1566 
1567 	dev->rx_urb_size = 1024 * 20;
1568 
1569 	*tmp = 0x34;
1570 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_LOW, 1, 1, tmp);
1571 
1572 	*tmp = 0x52;
1573 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_PAUSE_WATERLVL_HIGH,
1574 			  1, 1, tmp);
1575 
1576 	dev->net->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1577 			      NETIF_F_RXCSUM;
1578 
1579 	dev->net->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
1580 				 NETIF_F_RXCSUM;
1581 
1582 	/* Enable checksum offload */
1583 	*tmp = AX_RXCOE_IP | AX_RXCOE_TCP | AX_RXCOE_UDP |
1584 	       AX_RXCOE_TCPV6 | AX_RXCOE_UDPV6;
1585 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RXCOE_CTL, 1, 1, tmp);
1586 
1587 	*tmp = AX_TXCOE_IP | AX_TXCOE_TCP | AX_TXCOE_UDP |
1588 	       AX_TXCOE_TCPV6 | AX_TXCOE_UDPV6;
1589 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_TXCOE_CTL, 1, 1, tmp);
1590 
1591 	/* Configure RX control register => start operation */
1592 	*tmp16 = AX_RX_CTL_DROPCRCERR | AX_RX_CTL_IPE | AX_RX_CTL_START |
1593 		 AX_RX_CTL_AP | AX_RX_CTL_AMALL | AX_RX_CTL_AB;
1594 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_RX_CTL, 2, 2, tmp16);
1595 
1596 	*tmp = AX_MONITOR_MODE_PMETYPE | AX_MONITOR_MODE_PMEPOL |
1597 	       AX_MONITOR_MODE_RWMP;
1598 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MONITOR_MOD, 1, 1, tmp);
1599 
1600 	/* Configure default medium type => giga */
1601 	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
1602 		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
1603 		 AX_MEDIUM_GIGAMODE;
1604 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1605 			  2, 2, tmp16);
1606 
1607 	ax88179_led_setting(dev);
1608 
1609 	ax179_data->eee_enabled = 0;
1610 	ax179_data->eee_active = 0;
1611 
1612 	ax88179_disable_eee(dev);
1613 
1614 	ax88179_ethtool_get_eee(dev, &eee_data);
1615 	eee_data.advertised = 0;
1616 	ax88179_ethtool_set_eee(dev, &eee_data);
1617 
1618 	/* Restart autoneg */
1619 	mii_nway_restart(&dev->mii);
1620 
1621 	usbnet_link_change(dev, 0, 0);
1622 
1623 	return 0;
1624 }
1625 
1626 static int ax88179_stop(struct usbnet *dev)
1627 {
1628 	u16 tmp16;
1629 
1630 	ax88179_read_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1631 			 2, 2, &tmp16);
1632 	tmp16 &= ~AX_MEDIUM_RECEIVE_EN;
1633 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
1634 			  2, 2, &tmp16);
1635 
1636 	return 0;
1637 }
1638 
1639 static const struct driver_info ax88179_info = {
1640 	.description = "ASIX AX88179 USB 3.0 Gigabit Ethernet",
1641 	.bind = ax88179_bind,
1642 	.unbind = ax88179_unbind,
1643 	.status = ax88179_status,
1644 	.link_reset = ax88179_link_reset,
1645 	.reset = ax88179_reset,
1646 	.stop = ax88179_stop,
1647 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1648 	.rx_fixup = ax88179_rx_fixup,
1649 	.tx_fixup = ax88179_tx_fixup,
1650 };
1651 
1652 static const struct driver_info ax88178a_info = {
1653 	.description = "ASIX AX88178A USB 2.0 Gigabit Ethernet",
1654 	.bind = ax88179_bind,
1655 	.unbind = ax88179_unbind,
1656 	.status = ax88179_status,
1657 	.link_reset = ax88179_link_reset,
1658 	.reset = ax88179_reset,
1659 	.stop = ax88179_stop,
1660 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1661 	.rx_fixup = ax88179_rx_fixup,
1662 	.tx_fixup = ax88179_tx_fixup,
1663 };
1664 
1665 static const struct driver_info cypress_GX3_info = {
1666 	.description = "Cypress GX3 SuperSpeed to Gigabit Ethernet Controller",
1667 	.bind = ax88179_bind,
1668 	.unbind = ax88179_unbind,
1669 	.status = ax88179_status,
1670 	.link_reset = ax88179_link_reset,
1671 	.reset = ax88179_reset,
1672 	.stop = ax88179_stop,
1673 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1674 	.rx_fixup = ax88179_rx_fixup,
1675 	.tx_fixup = ax88179_tx_fixup,
1676 };
1677 
1678 static const struct driver_info dlink_dub1312_info = {
1679 	.description = "D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter",
1680 	.bind = ax88179_bind,
1681 	.unbind = ax88179_unbind,
1682 	.status = ax88179_status,
1683 	.link_reset = ax88179_link_reset,
1684 	.reset = ax88179_reset,
1685 	.stop = ax88179_stop,
1686 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1687 	.rx_fixup = ax88179_rx_fixup,
1688 	.tx_fixup = ax88179_tx_fixup,
1689 };
1690 
1691 static const struct driver_info sitecom_info = {
1692 	.description = "Sitecom USB 3.0 to Gigabit Adapter",
1693 	.bind = ax88179_bind,
1694 	.unbind = ax88179_unbind,
1695 	.status = ax88179_status,
1696 	.link_reset = ax88179_link_reset,
1697 	.reset = ax88179_reset,
1698 	.stop = ax88179_stop,
1699 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1700 	.rx_fixup = ax88179_rx_fixup,
1701 	.tx_fixup = ax88179_tx_fixup,
1702 };
1703 
1704 static const struct driver_info samsung_info = {
1705 	.description = "Samsung USB Ethernet Adapter",
1706 	.bind = ax88179_bind,
1707 	.unbind = ax88179_unbind,
1708 	.status = ax88179_status,
1709 	.link_reset = ax88179_link_reset,
1710 	.reset = ax88179_reset,
1711 	.stop = ax88179_stop,
1712 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1713 	.rx_fixup = ax88179_rx_fixup,
1714 	.tx_fixup = ax88179_tx_fixup,
1715 };
1716 
1717 static const struct driver_info lenovo_info = {
1718 	.description = "Lenovo OneLinkDock Gigabit LAN",
1719 	.bind = ax88179_bind,
1720 	.unbind = ax88179_unbind,
1721 	.status = ax88179_status,
1722 	.link_reset = ax88179_link_reset,
1723 	.reset = ax88179_reset,
1724 	.stop = ax88179_stop,
1725 	.flags = FLAG_ETHER | FLAG_FRAMING_AX,
1726 	.rx_fixup = ax88179_rx_fixup,
1727 	.tx_fixup = ax88179_tx_fixup,
1728 };
1729 
1730 static const struct driver_info belkin_info = {
1731 	.description = "Belkin USB Ethernet Adapter",
1732 	.bind	= ax88179_bind,
1733 	.unbind = ax88179_unbind,
1734 	.status = ax88179_status,
1735 	.link_reset = ax88179_link_reset,
1736 	.reset	= ax88179_reset,
1737 	.flags	= FLAG_ETHER | FLAG_FRAMING_AX,
1738 	.rx_fixup = ax88179_rx_fixup,
1739 	.tx_fixup = ax88179_tx_fixup,
1740 };
1741 
1742 static const struct usb_device_id products[] = {
1743 {
1744 	/* ASIX AX88179 10/100/1000 */
1745 	USB_DEVICE(0x0b95, 0x1790),
1746 	.driver_info = (unsigned long)&ax88179_info,
1747 }, {
1748 	/* ASIX AX88178A 10/100/1000 */
1749 	USB_DEVICE(0x0b95, 0x178a),
1750 	.driver_info = (unsigned long)&ax88178a_info,
1751 }, {
1752 	/* Cypress GX3 SuperSpeed to Gigabit Ethernet Bridge Controller */
1753 	USB_DEVICE(0x04b4, 0x3610),
1754 	.driver_info = (unsigned long)&cypress_GX3_info,
1755 }, {
1756 	/* D-Link DUB-1312 USB 3.0 to Gigabit Ethernet Adapter */
1757 	USB_DEVICE(0x2001, 0x4a00),
1758 	.driver_info = (unsigned long)&dlink_dub1312_info,
1759 }, {
1760 	/* Sitecom USB 3.0 to Gigabit Adapter */
1761 	USB_DEVICE(0x0df6, 0x0072),
1762 	.driver_info = (unsigned long)&sitecom_info,
1763 }, {
1764 	/* Samsung USB Ethernet Adapter */
1765 	USB_DEVICE(0x04e8, 0xa100),
1766 	.driver_info = (unsigned long)&samsung_info,
1767 }, {
1768 	/* Lenovo OneLinkDock Gigabit LAN */
1769 	USB_DEVICE(0x17ef, 0x304b),
1770 	.driver_info = (unsigned long)&lenovo_info,
1771 }, {
1772 	/* Belkin B2B128 USB 3.0 Hub + Gigabit Ethernet Adapter */
1773 	USB_DEVICE(0x050d, 0x0128),
1774 	.driver_info = (unsigned long)&belkin_info,
1775 },
1776 	{ },
1777 };
1778 MODULE_DEVICE_TABLE(usb, products);
1779 
1780 static struct usb_driver ax88179_178a_driver = {
1781 	.name =		"ax88179_178a",
1782 	.id_table =	products,
1783 	.probe =	usbnet_probe,
1784 	.suspend =	ax88179_suspend,
1785 	.resume =	ax88179_resume,
1786 	.reset_resume =	ax88179_resume,
1787 	.disconnect =	usbnet_disconnect,
1788 	.supports_autosuspend = 1,
1789 	.disable_hub_initiated_lpm = 1,
1790 };
1791 
1792 module_usb_driver(ax88179_178a_driver);
1793 
1794 MODULE_DESCRIPTION("ASIX AX88179/178A based USB 3.0/2.0 Gigabit Ethernet Devices");
1795 MODULE_LICENSE("GPL");
1796