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8#include <linux/module.h>
9#include <linux/kmod.h>
10#include <linux/netdevice.h>
11#include <linux/etherdevice.h>
12#include <linux/ethtool.h>
13#include <linux/mii.h>
14#include <linux/usb.h>
15#include <linux/bitrev.h>
16#include <linux/crc16.h>
17#include <linux/crc32.h>
18#include <linux/usb/usbnet.h>
19#include <linux/slab.h>
20#include <linux/of_net.h>
21#include <linux/mdio.h>
22#include <linux/phy.h>
23#include "smsc95xx.h"
24
25#define SMSC_CHIPNAME "smsc95xx"
26#define SMSC_DRIVER_VERSION "2.0.0"
27#define HS_USB_PKT_SIZE (512)
28#define FS_USB_PKT_SIZE (64)
29#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
30#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
31#define DEFAULT_BULK_IN_DELAY (0x00002000)
32#define MAX_SINGLE_PACKET_SIZE (2048)
33#define LAN95XX_EEPROM_MAGIC (0x9500)
34#define EEPROM_MAC_OFFSET (0x01)
35#define DEFAULT_TX_CSUM_ENABLE (true)
36#define DEFAULT_RX_CSUM_ENABLE (true)
37#define SMSC95XX_INTERNAL_PHY_ID (1)
38#define SMSC95XX_TX_OVERHEAD (8)
39#define SMSC95XX_TX_OVERHEAD_CSUM (12)
40#define SUPPORTED_WAKE (WAKE_PHY | WAKE_UCAST | WAKE_BCAST | \
41 WAKE_MCAST | WAKE_ARP | WAKE_MAGIC)
42
43#define FEATURE_8_WAKEUP_FILTERS (0x01)
44#define FEATURE_PHY_NLP_CROSSOVER (0x02)
45#define FEATURE_REMOTE_WAKEUP (0x04)
46
47#define SUSPEND_SUSPEND0 (0x01)
48#define SUSPEND_SUSPEND1 (0x02)
49#define SUSPEND_SUSPEND2 (0x04)
50#define SUSPEND_SUSPEND3 (0x08)
51#define SUSPEND_ALLMODES (SUSPEND_SUSPEND0 | SUSPEND_SUSPEND1 | \
52 SUSPEND_SUSPEND2 | SUSPEND_SUSPEND3)
53
54struct smsc95xx_priv {
55 u32 mac_cr;
56 u32 hash_hi;
57 u32 hash_lo;
58 u32 wolopts;
59 spinlock_t mac_cr_lock;
60 u8 features;
61 u8 suspend_flags;
62 struct mii_bus *mdiobus;
63 struct phy_device *phydev;
64};
65
66static bool turbo_mode = true;
67module_param(turbo_mode, bool, 0644);
68MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
69
70static int __must_check __smsc95xx_read_reg(struct usbnet *dev, u32 index,
71 u32 *data, int in_pm)
72{
73 u32 buf;
74 int ret;
75 int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16);
76
77 BUG_ON(!dev);
78
79 if (!in_pm)
80 fn = usbnet_read_cmd;
81 else
82 fn = usbnet_read_cmd_nopm;
83
84 ret = fn(dev, USB_VENDOR_REQUEST_READ_REGISTER, USB_DIR_IN
85 | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
86 0, index, &buf, 4);
87 if (unlikely(ret < 0)) {
88 netdev_warn(dev->net, "Failed to read reg index 0x%08x: %d\n",
89 index, ret);
90 return ret;
91 }
92
93 le32_to_cpus(&buf);
94 *data = buf;
95
96 return ret;
97}
98
99static int __must_check __smsc95xx_write_reg(struct usbnet *dev, u32 index,
100 u32 data, int in_pm)
101{
102 u32 buf;
103 int ret;
104 int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16);
105
106 BUG_ON(!dev);
107
108 if (!in_pm)
109 fn = usbnet_write_cmd;
110 else
111 fn = usbnet_write_cmd_nopm;
112
113 buf = data;
114 cpu_to_le32s(&buf);
115
116 ret = fn(dev, USB_VENDOR_REQUEST_WRITE_REGISTER, USB_DIR_OUT
117 | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
118 0, index, &buf, 4);
119 if (unlikely(ret < 0))
120 netdev_warn(dev->net, "Failed to write reg index 0x%08x: %d\n",
121 index, ret);
122
123 return ret;
124}
125
126static int __must_check smsc95xx_read_reg_nopm(struct usbnet *dev, u32 index,
127 u32 *data)
128{
129 return __smsc95xx_read_reg(dev, index, data, 1);
130}
131
132static int __must_check smsc95xx_write_reg_nopm(struct usbnet *dev, u32 index,
133 u32 data)
134{
135 return __smsc95xx_write_reg(dev, index, data, 1);
136}
137
138static int __must_check smsc95xx_read_reg(struct usbnet *dev, u32 index,
139 u32 *data)
140{
141 return __smsc95xx_read_reg(dev, index, data, 0);
142}
143
144static int __must_check smsc95xx_write_reg(struct usbnet *dev, u32 index,
145 u32 data)
146{
147 return __smsc95xx_write_reg(dev, index, data, 0);
148}
149
150
151
152static int __must_check __smsc95xx_phy_wait_not_busy(struct usbnet *dev,
153 int in_pm)
154{
155 unsigned long start_time = jiffies;
156 u32 val;
157 int ret;
158
159 do {
160 ret = __smsc95xx_read_reg(dev, MII_ADDR, &val, in_pm);
161 if (ret < 0) {
162 netdev_warn(dev->net, "Error reading MII_ACCESS\n");
163 return ret;
164 }
165
166 if (!(val & MII_BUSY_))
167 return 0;
168 } while (!time_after(jiffies, start_time + HZ));
169
170 return -EIO;
171}
172
173static u32 mii_address_cmd(int phy_id, int idx, u16 op)
174{
175 return (phy_id & 0x1f) << 11 | (idx & 0x1f) << 6 | op;
176}
177
178static int __smsc95xx_mdio_read(struct usbnet *dev, int phy_id, int idx,
179 int in_pm)
180{
181 u32 val, addr;
182 int ret;
183
184 mutex_lock(&dev->phy_mutex);
185
186
187 ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
188 if (ret < 0) {
189 netdev_warn(dev->net, "%s: MII is busy\n", __func__);
190 goto done;
191 }
192
193
194 addr = mii_address_cmd(phy_id, idx, MII_READ_ | MII_BUSY_);
195 ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
196 if (ret < 0) {
197 netdev_warn(dev->net, "Error writing MII_ADDR\n");
198 goto done;
199 }
200
201 ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
202 if (ret < 0) {
203 netdev_warn(dev->net, "Timed out reading MII reg %02X\n", idx);
204 goto done;
205 }
206
207 ret = __smsc95xx_read_reg(dev, MII_DATA, &val, in_pm);
208 if (ret < 0) {
209 netdev_warn(dev->net, "Error reading MII_DATA\n");
210 goto done;
211 }
212
213 ret = (u16)(val & 0xFFFF);
214
215done:
216 mutex_unlock(&dev->phy_mutex);
217 return ret;
218}
219
220static void __smsc95xx_mdio_write(struct usbnet *dev, int phy_id,
221 int idx, int regval, int in_pm)
222{
223 u32 val, addr;
224 int ret;
225
226 mutex_lock(&dev->phy_mutex);
227
228
229 ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
230 if (ret < 0) {
231 netdev_warn(dev->net, "%s: MII is busy\n", __func__);
232 goto done;
233 }
234
235 val = regval;
236 ret = __smsc95xx_write_reg(dev, MII_DATA, val, in_pm);
237 if (ret < 0) {
238 netdev_warn(dev->net, "Error writing MII_DATA\n");
239 goto done;
240 }
241
242
243 addr = mii_address_cmd(phy_id, idx, MII_WRITE_ | MII_BUSY_);
244 ret = __smsc95xx_write_reg(dev, MII_ADDR, addr, in_pm);
245 if (ret < 0) {
246 netdev_warn(dev->net, "Error writing MII_ADDR\n");
247 goto done;
248 }
249
250 ret = __smsc95xx_phy_wait_not_busy(dev, in_pm);
251 if (ret < 0) {
252 netdev_warn(dev->net, "Timed out writing MII reg %02X\n", idx);
253 goto done;
254 }
255
256done:
257 mutex_unlock(&dev->phy_mutex);
258}
259
260static int smsc95xx_mdio_read_nopm(struct usbnet *dev, int idx)
261{
262 struct smsc95xx_priv *pdata = dev->driver_priv;
263
264 return __smsc95xx_mdio_read(dev, pdata->phydev->mdio.addr, idx, 1);
265}
266
267static void smsc95xx_mdio_write_nopm(struct usbnet *dev, int idx, int regval)
268{
269 struct smsc95xx_priv *pdata = dev->driver_priv;
270
271 __smsc95xx_mdio_write(dev, pdata->phydev->mdio.addr, idx, regval, 1);
272}
273
274static int smsc95xx_mdiobus_read(struct mii_bus *bus, int phy_id, int idx)
275{
276 struct usbnet *dev = bus->priv;
277
278 return __smsc95xx_mdio_read(dev, phy_id, idx, 0);
279}
280
281static int smsc95xx_mdiobus_write(struct mii_bus *bus, int phy_id, int idx,
282 u16 regval)
283{
284 struct usbnet *dev = bus->priv;
285
286 __smsc95xx_mdio_write(dev, phy_id, idx, regval, 0);
287 return 0;
288}
289
290static int __must_check smsc95xx_wait_eeprom(struct usbnet *dev)
291{
292 unsigned long start_time = jiffies;
293 u32 val;
294 int ret;
295
296 do {
297 ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
298 if (ret < 0) {
299 netdev_warn(dev->net, "Error reading E2P_CMD\n");
300 return ret;
301 }
302
303 if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
304 break;
305 udelay(40);
306 } while (!time_after(jiffies, start_time + HZ));
307
308 if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
309 netdev_warn(dev->net, "EEPROM read operation timeout\n");
310 return -EIO;
311 }
312
313 return 0;
314}
315
316static int __must_check smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
317{
318 unsigned long start_time = jiffies;
319 u32 val;
320 int ret;
321
322 do {
323 ret = smsc95xx_read_reg(dev, E2P_CMD, &val);
324 if (ret < 0) {
325 netdev_warn(dev->net, "Error reading E2P_CMD\n");
326 return ret;
327 }
328
329 if (!(val & E2P_CMD_BUSY_))
330 return 0;
331
332 udelay(40);
333 } while (!time_after(jiffies, start_time + HZ));
334
335 netdev_warn(dev->net, "EEPROM is busy\n");
336 return -EIO;
337}
338
339static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
340 u8 *data)
341{
342 u32 val;
343 int i, ret;
344
345 BUG_ON(!dev);
346 BUG_ON(!data);
347
348 ret = smsc95xx_eeprom_confirm_not_busy(dev);
349 if (ret)
350 return ret;
351
352 for (i = 0; i < length; i++) {
353 val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
354 ret = smsc95xx_write_reg(dev, E2P_CMD, val);
355 if (ret < 0) {
356 netdev_warn(dev->net, "Error writing E2P_CMD\n");
357 return ret;
358 }
359
360 ret = smsc95xx_wait_eeprom(dev);
361 if (ret < 0)
362 return ret;
363
364 ret = smsc95xx_read_reg(dev, E2P_DATA, &val);
365 if (ret < 0) {
366 netdev_warn(dev->net, "Error reading E2P_DATA\n");
367 return ret;
368 }
369
370 data[i] = val & 0xFF;
371 offset++;
372 }
373
374 return 0;
375}
376
377static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
378 u8 *data)
379{
380 u32 val;
381 int i, ret;
382
383 BUG_ON(!dev);
384 BUG_ON(!data);
385
386 ret = smsc95xx_eeprom_confirm_not_busy(dev);
387 if (ret)
388 return ret;
389
390
391 val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
392 ret = smsc95xx_write_reg(dev, E2P_CMD, val);
393 if (ret < 0) {
394 netdev_warn(dev->net, "Error writing E2P_DATA\n");
395 return ret;
396 }
397
398 ret = smsc95xx_wait_eeprom(dev);
399 if (ret < 0)
400 return ret;
401
402 for (i = 0; i < length; i++) {
403
404
405 val = data[i];
406 ret = smsc95xx_write_reg(dev, E2P_DATA, val);
407 if (ret < 0) {
408 netdev_warn(dev->net, "Error writing E2P_DATA\n");
409 return ret;
410 }
411
412
413 val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
414 ret = smsc95xx_write_reg(dev, E2P_CMD, val);
415 if (ret < 0) {
416 netdev_warn(dev->net, "Error writing E2P_CMD\n");
417 return ret;
418 }
419
420 ret = smsc95xx_wait_eeprom(dev);
421 if (ret < 0)
422 return ret;
423
424 offset++;
425 }
426
427 return 0;
428}
429
430static int __must_check smsc95xx_write_reg_async(struct usbnet *dev, u16 index,
431 u32 data)
432{
433 const u16 size = 4;
434 u32 buf;
435 int ret;
436
437 buf = data;
438 cpu_to_le32s(&buf);
439
440 ret = usbnet_write_cmd_async(dev, USB_VENDOR_REQUEST_WRITE_REGISTER,
441 USB_DIR_OUT | USB_TYPE_VENDOR |
442 USB_RECIP_DEVICE,
443 0, index, &buf, size);
444 if (ret < 0)
445 netdev_warn(dev->net, "Error write async cmd, sts=%d\n",
446 ret);
447 return ret;
448}
449
450
451
452
453static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
454{
455 return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
456}
457
458static void smsc95xx_set_multicast(struct net_device *netdev)
459{
460 struct usbnet *dev = netdev_priv(netdev);
461 struct smsc95xx_priv *pdata = dev->driver_priv;
462 unsigned long flags;
463 int ret;
464
465 pdata->hash_hi = 0;
466 pdata->hash_lo = 0;
467
468 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
469
470 if (dev->net->flags & IFF_PROMISC) {
471 netif_dbg(dev, drv, dev->net, "promiscuous mode enabled\n");
472 pdata->mac_cr |= MAC_CR_PRMS_;
473 pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
474 } else if (dev->net->flags & IFF_ALLMULTI) {
475 netif_dbg(dev, drv, dev->net, "receive all multicast enabled\n");
476 pdata->mac_cr |= MAC_CR_MCPAS_;
477 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
478 } else if (!netdev_mc_empty(dev->net)) {
479 struct netdev_hw_addr *ha;
480
481 pdata->mac_cr |= MAC_CR_HPFILT_;
482 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
483
484 netdev_for_each_mc_addr(ha, netdev) {
485 u32 bitnum = smsc95xx_hash(ha->addr);
486 u32 mask = 0x01 << (bitnum & 0x1F);
487 if (bitnum & 0x20)
488 pdata->hash_hi |= mask;
489 else
490 pdata->hash_lo |= mask;
491 }
492
493 netif_dbg(dev, drv, dev->net, "HASHH=0x%08X, HASHL=0x%08X\n",
494 pdata->hash_hi, pdata->hash_lo);
495 } else {
496 netif_dbg(dev, drv, dev->net, "receive own packets only\n");
497 pdata->mac_cr &=
498 ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
499 }
500
501 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
502
503
504 ret = smsc95xx_write_reg_async(dev, HASHH, pdata->hash_hi);
505 if (ret < 0)
506 netdev_warn(dev->net, "failed to initiate async write to HASHH\n");
507
508 ret = smsc95xx_write_reg_async(dev, HASHL, pdata->hash_lo);
509 if (ret < 0)
510 netdev_warn(dev->net, "failed to initiate async write to HASHL\n");
511
512 ret = smsc95xx_write_reg_async(dev, MAC_CR, pdata->mac_cr);
513 if (ret < 0)
514 netdev_warn(dev->net, "failed to initiate async write to MAC_CR\n");
515}
516
517static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev)
518{
519 u32 flow = 0, afc_cfg;
520 struct smsc95xx_priv *pdata = dev->driver_priv;
521 bool tx_pause, rx_pause;
522
523 int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
524 if (ret < 0)
525 return ret;
526
527 if (pdata->phydev->duplex == DUPLEX_FULL) {
528 phy_get_pause(pdata->phydev, &tx_pause, &rx_pause);
529
530 if (rx_pause)
531 flow = 0xFFFF0002;
532
533 if (tx_pause) {
534 afc_cfg |= 0xF;
535 flow |= 0xFFFF0000;
536 } else {
537 afc_cfg &= ~0xF;
538 }
539
540 netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
541 rx_pause ? "enabled" : "disabled",
542 tx_pause ? "enabled" : "disabled");
543 } else {
544 netif_dbg(dev, link, dev->net, "half duplex\n");
545 afc_cfg |= 0xF;
546 }
547
548 ret = smsc95xx_write_reg(dev, FLOW, flow);
549 if (ret < 0)
550 return ret;
551
552 return smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
553}
554
555static int smsc95xx_link_reset(struct usbnet *dev)
556{
557 struct smsc95xx_priv *pdata = dev->driver_priv;
558 unsigned long flags;
559 int ret;
560
561 ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
562 if (ret < 0)
563 return ret;
564
565 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
566 if (pdata->phydev->duplex != DUPLEX_FULL) {
567 pdata->mac_cr &= ~MAC_CR_FDPX_;
568 pdata->mac_cr |= MAC_CR_RCVOWN_;
569 } else {
570 pdata->mac_cr &= ~MAC_CR_RCVOWN_;
571 pdata->mac_cr |= MAC_CR_FDPX_;
572 }
573 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
574
575 ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
576 if (ret < 0)
577 return ret;
578
579 ret = smsc95xx_phy_update_flowcontrol(dev);
580 if (ret < 0)
581 netdev_warn(dev->net, "Error updating PHY flow control\n");
582
583 return ret;
584}
585
586static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
587{
588 u32 intdata;
589
590 if (urb->actual_length != 4) {
591 netdev_warn(dev->net, "unexpected urb length %d\n",
592 urb->actual_length);
593 return;
594 }
595
596 intdata = get_unaligned_le32(urb->transfer_buffer);
597 netif_dbg(dev, link, dev->net, "intdata: 0x%08X\n", intdata);
598
599 if (intdata & INT_ENP_PHY_INT_)
600 usbnet_defer_kevent(dev, EVENT_LINK_RESET);
601 else
602 netdev_warn(dev->net, "unexpected interrupt, intdata=0x%08X\n",
603 intdata);
604}
605
606
607static int smsc95xx_set_features(struct net_device *netdev,
608 netdev_features_t features)
609{
610 struct usbnet *dev = netdev_priv(netdev);
611 u32 read_buf;
612 int ret;
613
614 ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
615 if (ret < 0)
616 return ret;
617
618 if (features & NETIF_F_IP_CSUM)
619 read_buf |= Tx_COE_EN_;
620 else
621 read_buf &= ~Tx_COE_EN_;
622
623 if (features & NETIF_F_RXCSUM)
624 read_buf |= Rx_COE_EN_;
625 else
626 read_buf &= ~Rx_COE_EN_;
627
628 ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
629 if (ret < 0)
630 return ret;
631
632 netif_dbg(dev, hw, dev->net, "COE_CR = 0x%08x\n", read_buf);
633 return 0;
634}
635
636static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
637{
638 return MAX_EEPROM_SIZE;
639}
640
641static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
642 struct ethtool_eeprom *ee, u8 *data)
643{
644 struct usbnet *dev = netdev_priv(netdev);
645
646 ee->magic = LAN95XX_EEPROM_MAGIC;
647
648 return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
649}
650
651static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
652 struct ethtool_eeprom *ee, u8 *data)
653{
654 struct usbnet *dev = netdev_priv(netdev);
655
656 if (ee->magic != LAN95XX_EEPROM_MAGIC) {
657 netdev_warn(dev->net, "EEPROM: magic value mismatch, magic = 0x%x\n",
658 ee->magic);
659 return -EINVAL;
660 }
661
662 return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
663}
664
665static int smsc95xx_ethtool_getregslen(struct net_device *netdev)
666{
667
668 return COE_CR - ID_REV + sizeof(u32);
669}
670
671static void
672smsc95xx_ethtool_getregs(struct net_device *netdev, struct ethtool_regs *regs,
673 void *buf)
674{
675 struct usbnet *dev = netdev_priv(netdev);
676 unsigned int i, j;
677 int retval;
678 u32 *data = buf;
679
680 retval = smsc95xx_read_reg(dev, ID_REV, ®s->version);
681 if (retval < 0) {
682 netdev_warn(netdev, "REGS: cannot read ID_REV\n");
683 return;
684 }
685
686 for (i = ID_REV, j = 0; i <= COE_CR; i += (sizeof(u32)), j++) {
687 retval = smsc95xx_read_reg(dev, i, &data[j]);
688 if (retval < 0) {
689 netdev_warn(netdev, "REGS: cannot read reg[%x]\n", i);
690 return;
691 }
692 }
693}
694
695static void smsc95xx_ethtool_get_wol(struct net_device *net,
696 struct ethtool_wolinfo *wolinfo)
697{
698 struct usbnet *dev = netdev_priv(net);
699 struct smsc95xx_priv *pdata = dev->driver_priv;
700
701 wolinfo->supported = SUPPORTED_WAKE;
702 wolinfo->wolopts = pdata->wolopts;
703}
704
705static int smsc95xx_ethtool_set_wol(struct net_device *net,
706 struct ethtool_wolinfo *wolinfo)
707{
708 struct usbnet *dev = netdev_priv(net);
709 struct smsc95xx_priv *pdata = dev->driver_priv;
710 int ret;
711
712 if (wolinfo->wolopts & ~SUPPORTED_WAKE)
713 return -EINVAL;
714
715 pdata->wolopts = wolinfo->wolopts & SUPPORTED_WAKE;
716
717 ret = device_set_wakeup_enable(&dev->udev->dev, pdata->wolopts);
718 if (ret < 0)
719 netdev_warn(dev->net, "device_set_wakeup_enable error %d\n", ret);
720
721 return ret;
722}
723
724static u32 smsc95xx_get_link(struct net_device *net)
725{
726 phy_read_status(net->phydev);
727 return net->phydev->link;
728}
729
730static const struct ethtool_ops smsc95xx_ethtool_ops = {
731 .get_link = smsc95xx_get_link,
732 .nway_reset = phy_ethtool_nway_reset,
733 .get_drvinfo = usbnet_get_drvinfo,
734 .get_msglevel = usbnet_get_msglevel,
735 .set_msglevel = usbnet_set_msglevel,
736 .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
737 .get_eeprom = smsc95xx_ethtool_get_eeprom,
738 .set_eeprom = smsc95xx_ethtool_set_eeprom,
739 .get_regs_len = smsc95xx_ethtool_getregslen,
740 .get_regs = smsc95xx_ethtool_getregs,
741 .get_wol = smsc95xx_ethtool_get_wol,
742 .set_wol = smsc95xx_ethtool_set_wol,
743 .get_link_ksettings = phy_ethtool_get_link_ksettings,
744 .set_link_ksettings = phy_ethtool_set_link_ksettings,
745 .get_ts_info = ethtool_op_get_ts_info,
746};
747
748static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
749{
750 if (!netif_running(netdev))
751 return -EINVAL;
752
753 return phy_mii_ioctl(netdev->phydev, rq, cmd);
754}
755
756static void smsc95xx_init_mac_address(struct usbnet *dev)
757{
758
759 if (!eth_platform_get_mac_address(&dev->udev->dev,
760 dev->net->dev_addr)) {
761 if (is_valid_ether_addr(dev->net->dev_addr)) {
762
763 netif_dbg(dev, ifup, dev->net, "MAC address read from the device tree\n");
764 return;
765 }
766 }
767
768
769 if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
770 dev->net->dev_addr) == 0) {
771 if (is_valid_ether_addr(dev->net->dev_addr)) {
772
773 netif_dbg(dev, ifup, dev->net, "MAC address read from EEPROM\n");
774 return;
775 }
776 }
777
778
779 eth_hw_addr_random(dev->net);
780 netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
781}
782
783static int smsc95xx_set_mac_address(struct usbnet *dev)
784{
785 u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
786 dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
787 u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
788 int ret;
789
790 ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
791 if (ret < 0)
792 return ret;
793
794 return smsc95xx_write_reg(dev, ADDRH, addr_hi);
795}
796
797
798static int smsc95xx_start_tx_path(struct usbnet *dev)
799{
800 struct smsc95xx_priv *pdata = dev->driver_priv;
801 unsigned long flags;
802 int ret;
803
804
805 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
806 pdata->mac_cr |= MAC_CR_TXEN_;
807 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
808
809 ret = smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
810 if (ret < 0)
811 return ret;
812
813
814 return smsc95xx_write_reg(dev, TX_CFG, TX_CFG_ON_);
815}
816
817
818static int smsc95xx_start_rx_path(struct usbnet *dev, int in_pm)
819{
820 struct smsc95xx_priv *pdata = dev->driver_priv;
821 unsigned long flags;
822
823 spin_lock_irqsave(&pdata->mac_cr_lock, flags);
824 pdata->mac_cr |= MAC_CR_RXEN_;
825 spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
826
827 return __smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr, in_pm);
828}
829
830static int smsc95xx_reset(struct usbnet *dev)
831{
832 struct smsc95xx_priv *pdata = dev->driver_priv;
833 u32 read_buf, write_buf, burst_cap;
834 int ret = 0, timeout;
835
836 netif_dbg(dev, ifup, dev->net, "entering smsc95xx_reset\n");
837
838 ret = smsc95xx_write_reg(dev, HW_CFG, HW_CFG_LRST_);
839 if (ret < 0)
840 return ret;
841
842 timeout = 0;
843 do {
844 msleep(10);
845 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
846 if (ret < 0)
847 return ret;
848 timeout++;
849 } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
850
851 if (timeout >= 100) {
852 netdev_warn(dev->net, "timeout waiting for completion of Lite Reset\n");
853 return ret;
854 }
855
856 ret = smsc95xx_write_reg(dev, PM_CTRL, PM_CTL_PHY_RST_);
857 if (ret < 0)
858 return ret;
859
860 timeout = 0;
861 do {
862 msleep(10);
863 ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
864 if (ret < 0)
865 return ret;
866 timeout++;
867 } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
868
869 if (timeout >= 100) {
870 netdev_warn(dev->net, "timeout waiting for PHY Reset\n");
871 return ret;
872 }
873
874 ret = smsc95xx_set_mac_address(dev);
875 if (ret < 0)
876 return ret;
877
878 netif_dbg(dev, ifup, dev->net, "MAC Address: %pM\n",
879 dev->net->dev_addr);
880
881 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
882 if (ret < 0)
883 return ret;
884
885 netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x\n",
886 read_buf);
887
888 read_buf |= HW_CFG_BIR_;
889
890 ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
891 if (ret < 0)
892 return ret;
893
894 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
895 if (ret < 0)
896 return ret;
897
898 netif_dbg(dev, ifup, dev->net,
899 "Read Value from HW_CFG after writing HW_CFG_BIR_: 0x%08x\n",
900 read_buf);
901
902 if (!turbo_mode) {
903 burst_cap = 0;
904 dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
905 } else if (dev->udev->speed == USB_SPEED_HIGH) {
906 burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
907 dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
908 } else {
909 burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
910 dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
911 }
912
913 netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld\n",
914 (ulong)dev->rx_urb_size);
915
916 ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
917 if (ret < 0)
918 return ret;
919
920 ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
921 if (ret < 0)
922 return ret;
923
924 netif_dbg(dev, ifup, dev->net,
925 "Read Value from BURST_CAP after writing: 0x%08x\n",
926 read_buf);
927
928 ret = smsc95xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
929 if (ret < 0)
930 return ret;
931
932 ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
933 if (ret < 0)
934 return ret;
935
936 netif_dbg(dev, ifup, dev->net,
937 "Read Value from BULK_IN_DLY after writing: 0x%08x\n",
938 read_buf);
939
940 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
941 if (ret < 0)
942 return ret;
943
944 netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG: 0x%08x\n",
945 read_buf);
946
947 if (turbo_mode)
948 read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
949
950 read_buf &= ~HW_CFG_RXDOFF_;
951
952
953 read_buf |= NET_IP_ALIGN << 9;
954
955 ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
956 if (ret < 0)
957 return ret;
958
959 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
960 if (ret < 0)
961 return ret;
962
963 netif_dbg(dev, ifup, dev->net,
964 "Read Value from HW_CFG after writing: 0x%08x\n", read_buf);
965
966 ret = smsc95xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL_);
967 if (ret < 0)
968 return ret;
969
970 ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
971 if (ret < 0)
972 return ret;
973 netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x\n", read_buf);
974
975
976 write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
977 LED_GPIO_CFG_FDX_LED;
978 ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
979 if (ret < 0)
980 return ret;
981
982
983 ret = smsc95xx_write_reg(dev, FLOW, 0);
984 if (ret < 0)
985 return ret;
986
987 ret = smsc95xx_write_reg(dev, AFC_CFG, AFC_CFG_DEFAULT);
988 if (ret < 0)
989 return ret;
990
991
992 ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
993 if (ret < 0)
994 return ret;
995
996
997
998 ret = smsc95xx_write_reg(dev, VLAN1, (u32)ETH_P_8021Q);
999 if (ret < 0)
1000 return ret;
1001
1002
1003 ret = smsc95xx_set_features(dev->net, dev->net->features);
1004 if (ret < 0) {
1005 netdev_warn(dev->net, "Failed to set checksum offload features\n");
1006 return ret;
1007 }
1008
1009 smsc95xx_set_multicast(dev->net);
1010
1011 ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
1012 if (ret < 0)
1013 return ret;
1014
1015
1016 read_buf |= INT_EP_CTL_PHY_INT_;
1017
1018 ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
1019 if (ret < 0)
1020 return ret;
1021
1022 ret = smsc95xx_start_tx_path(dev);
1023 if (ret < 0) {
1024 netdev_warn(dev->net, "Failed to start TX path\n");
1025 return ret;
1026 }
1027
1028 ret = smsc95xx_start_rx_path(dev, 0);
1029 if (ret < 0) {
1030 netdev_warn(dev->net, "Failed to start RX path\n");
1031 return ret;
1032 }
1033
1034 netif_dbg(dev, ifup, dev->net, "smsc95xx_reset, return 0\n");
1035 return 0;
1036}
1037
1038static const struct net_device_ops smsc95xx_netdev_ops = {
1039 .ndo_open = usbnet_open,
1040 .ndo_stop = usbnet_stop,
1041 .ndo_start_xmit = usbnet_start_xmit,
1042 .ndo_tx_timeout = usbnet_tx_timeout,
1043 .ndo_change_mtu = usbnet_change_mtu,
1044 .ndo_get_stats64 = usbnet_get_stats64,
1045 .ndo_set_mac_address = eth_mac_addr,
1046 .ndo_validate_addr = eth_validate_addr,
1047 .ndo_do_ioctl = smsc95xx_ioctl,
1048 .ndo_set_rx_mode = smsc95xx_set_multicast,
1049 .ndo_set_features = smsc95xx_set_features,
1050};
1051
1052static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
1053{
1054 struct smsc95xx_priv *pdata;
1055 bool is_internal_phy;
1056 u32 val;
1057 int ret;
1058
1059 printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
1060
1061 ret = usbnet_get_endpoints(dev, intf);
1062 if (ret < 0) {
1063 netdev_warn(dev->net, "usbnet_get_endpoints failed: %d\n", ret);
1064 return ret;
1065 }
1066
1067 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
1068 if (!pdata)
1069 return -ENOMEM;
1070
1071 dev->driver_priv = pdata;
1072
1073 spin_lock_init(&pdata->mac_cr_lock);
1074
1075
1076
1077
1078
1079
1080
1081
1082 if (DEFAULT_TX_CSUM_ENABLE)
1083 dev->net->features |= NETIF_F_IP_CSUM;
1084 if (DEFAULT_RX_CSUM_ENABLE)
1085 dev->net->features |= NETIF_F_RXCSUM;
1086
1087 dev->net->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1088 set_bit(EVENT_NO_IP_ALIGN, &dev->flags);
1089
1090 smsc95xx_init_mac_address(dev);
1091
1092
1093 ret = smsc95xx_reset(dev);
1094 if (ret)
1095 goto free_pdata;
1096
1097 pdata->mdiobus = mdiobus_alloc();
1098 if (!pdata->mdiobus) {
1099 ret = -ENOMEM;
1100 goto free_pdata;
1101 }
1102
1103 ret = smsc95xx_read_reg(dev, HW_CFG, &val);
1104 if (ret < 0)
1105 goto free_mdio;
1106
1107 is_internal_phy = !(val & HW_CFG_PSEL_);
1108 if (is_internal_phy)
1109 pdata->mdiobus->phy_mask = ~(1u << SMSC95XX_INTERNAL_PHY_ID);
1110
1111 pdata->mdiobus->priv = dev;
1112 pdata->mdiobus->read = smsc95xx_mdiobus_read;
1113 pdata->mdiobus->write = smsc95xx_mdiobus_write;
1114 pdata->mdiobus->name = "smsc95xx-mdiobus";
1115 pdata->mdiobus->parent = &dev->udev->dev;
1116
1117 snprintf(pdata->mdiobus->id, ARRAY_SIZE(pdata->mdiobus->id),
1118 "usb-%03d:%03d", dev->udev->bus->busnum, dev->udev->devnum);
1119
1120 ret = mdiobus_register(pdata->mdiobus);
1121 if (ret) {
1122 netdev_err(dev->net, "Could not register MDIO bus\n");
1123 goto free_mdio;
1124 }
1125
1126 pdata->phydev = phy_find_first(pdata->mdiobus);
1127 if (!pdata->phydev) {
1128 netdev_err(dev->net, "no PHY found\n");
1129 ret = -ENODEV;
1130 goto unregister_mdio;
1131 }
1132
1133 pdata->phydev->is_internal = is_internal_phy;
1134
1135
1136 ret = smsc95xx_read_reg(dev, ID_REV, &val);
1137 if (ret < 0)
1138 goto unregister_mdio;
1139
1140 val >>= 16;
1141 if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
1142 (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))
1143 pdata->features = (FEATURE_8_WAKEUP_FILTERS |
1144 FEATURE_PHY_NLP_CROSSOVER |
1145 FEATURE_REMOTE_WAKEUP);
1146 else if (val == ID_REV_CHIP_ID_9512_)
1147 pdata->features = FEATURE_8_WAKEUP_FILTERS;
1148
1149 dev->net->netdev_ops = &smsc95xx_netdev_ops;
1150 dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1151 dev->net->flags |= IFF_MULTICAST;
1152 dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD_CSUM;
1153 dev->net->min_mtu = ETH_MIN_MTU;
1154 dev->net->max_mtu = ETH_DATA_LEN;
1155 dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
1156 return 0;
1157
1158unregister_mdio:
1159 mdiobus_unregister(pdata->mdiobus);
1160
1161free_mdio:
1162 mdiobus_free(pdata->mdiobus);
1163
1164free_pdata:
1165 kfree(pdata);
1166 return ret;
1167}
1168
1169static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
1170{
1171 struct smsc95xx_priv *pdata = dev->driver_priv;
1172
1173 mdiobus_unregister(pdata->mdiobus);
1174 mdiobus_free(pdata->mdiobus);
1175 netif_dbg(dev, ifdown, dev->net, "free pdata\n");
1176 kfree(pdata);
1177}
1178
1179static void smsc95xx_handle_link_change(struct net_device *net)
1180{
1181 phy_print_status(net->phydev);
1182}
1183
1184static int smsc95xx_start_phy(struct usbnet *dev)
1185{
1186 struct smsc95xx_priv *pdata = dev->driver_priv;
1187 struct net_device *net = dev->net;
1188 int ret;
1189
1190 ret = smsc95xx_reset(dev);
1191 if (ret < 0)
1192 return ret;
1193
1194 ret = phy_connect_direct(net, pdata->phydev,
1195 &smsc95xx_handle_link_change,
1196 PHY_INTERFACE_MODE_MII);
1197 if (ret) {
1198 netdev_err(net, "can't attach PHY to %s\n", pdata->mdiobus->id);
1199 return ret;
1200 }
1201
1202 phy_attached_info(net->phydev);
1203 phy_start(net->phydev);
1204 return 0;
1205}
1206
1207static int smsc95xx_disconnect_phy(struct usbnet *dev)
1208{
1209 phy_stop(dev->net->phydev);
1210 phy_disconnect(dev->net->phydev);
1211 return 0;
1212}
1213
1214static u32 smsc_crc(const u8 *buffer, size_t len, int filter)
1215{
1216 u32 crc = bitrev16(crc16(0xFFFF, buffer, len));
1217 return crc << ((filter % 2) * 16);
1218}
1219
1220static int smsc95xx_enable_phy_wakeup_interrupts(struct usbnet *dev, u16 mask)
1221{
1222 int ret;
1223
1224 netdev_dbg(dev->net, "enabling PHY wakeup interrupts\n");
1225
1226
1227 ret = smsc95xx_mdio_read_nopm(dev, PHY_INT_SRC);
1228 if (ret < 0)
1229 return ret;
1230
1231
1232 ret = smsc95xx_mdio_read_nopm(dev, PHY_INT_MASK);
1233 if (ret < 0)
1234 return ret;
1235
1236 ret |= mask;
1237
1238 smsc95xx_mdio_write_nopm(dev, PHY_INT_MASK, ret);
1239
1240 return 0;
1241}
1242
1243static int smsc95xx_link_ok_nopm(struct usbnet *dev)
1244{
1245 int ret;
1246
1247
1248 ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR);
1249 if (ret < 0)
1250 return ret;
1251
1252 ret = smsc95xx_mdio_read_nopm(dev, MII_BMSR);
1253 if (ret < 0)
1254 return ret;
1255
1256 return !!(ret & BMSR_LSTATUS);
1257}
1258
1259static int smsc95xx_enter_suspend0(struct usbnet *dev)
1260{
1261 struct smsc95xx_priv *pdata = dev->driver_priv;
1262 u32 val;
1263 int ret;
1264
1265 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1266 if (ret < 0)
1267 return ret;
1268
1269 val &= (~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_));
1270 val |= PM_CTL_SUS_MODE_0;
1271
1272 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1273 if (ret < 0)
1274 return ret;
1275
1276
1277 val &= ~PM_CTL_WUPS_;
1278 val |= PM_CTL_WUPS_WOL_;
1279
1280
1281 if (pdata->wolopts & WAKE_PHY)
1282 val |= PM_CTL_WUPS_ED_;
1283
1284 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1285 if (ret < 0)
1286 return ret;
1287
1288
1289 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1290 if (ret < 0)
1291 return ret;
1292
1293 pdata->suspend_flags |= SUSPEND_SUSPEND0;
1294
1295 return 0;
1296}
1297
1298static int smsc95xx_enter_suspend1(struct usbnet *dev)
1299{
1300 struct smsc95xx_priv *pdata = dev->driver_priv;
1301 u32 val;
1302 int ret;
1303
1304
1305
1306
1307 if (pdata->features & FEATURE_PHY_NLP_CROSSOVER)
1308 smsc95xx_mdio_write_nopm(dev, PHY_EDPD_CONFIG,
1309 PHY_EDPD_CONFIG_DEFAULT);
1310
1311
1312 ret = smsc95xx_mdio_read_nopm(dev, PHY_MODE_CTRL_STS);
1313 if (ret < 0)
1314 return ret;
1315
1316 ret |= MODE_CTRL_STS_EDPWRDOWN_;
1317
1318 smsc95xx_mdio_write_nopm(dev, PHY_MODE_CTRL_STS, ret);
1319
1320
1321 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1322 if (ret < 0)
1323 return ret;
1324
1325 val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
1326 val |= PM_CTL_SUS_MODE_1;
1327
1328 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1329 if (ret < 0)
1330 return ret;
1331
1332
1333 val &= ~PM_CTL_WUPS_;
1334 val |= (PM_CTL_WUPS_ED_ | PM_CTL_ED_EN_);
1335
1336 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1337 if (ret < 0)
1338 return ret;
1339
1340 pdata->suspend_flags |= SUSPEND_SUSPEND1;
1341
1342 return 0;
1343}
1344
1345static int smsc95xx_enter_suspend2(struct usbnet *dev)
1346{
1347 struct smsc95xx_priv *pdata = dev->driver_priv;
1348 u32 val;
1349 int ret;
1350
1351 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1352 if (ret < 0)
1353 return ret;
1354
1355 val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
1356 val |= PM_CTL_SUS_MODE_2;
1357
1358 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1359 if (ret < 0)
1360 return ret;
1361
1362 pdata->suspend_flags |= SUSPEND_SUSPEND2;
1363
1364 return 0;
1365}
1366
1367static int smsc95xx_enter_suspend3(struct usbnet *dev)
1368{
1369 struct smsc95xx_priv *pdata = dev->driver_priv;
1370 u32 val;
1371 int ret;
1372
1373 ret = smsc95xx_read_reg_nopm(dev, RX_FIFO_INF, &val);
1374 if (ret < 0)
1375 return ret;
1376
1377 if (val & RX_FIFO_INF_USED_) {
1378 netdev_info(dev->net, "rx fifo not empty in autosuspend\n");
1379 return -EBUSY;
1380 }
1381
1382 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1383 if (ret < 0)
1384 return ret;
1385
1386 val &= ~(PM_CTL_SUS_MODE_ | PM_CTL_WUPS_ | PM_CTL_PHY_RST_);
1387 val |= PM_CTL_SUS_MODE_3 | PM_CTL_RES_CLR_WKP_STS;
1388
1389 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1390 if (ret < 0)
1391 return ret;
1392
1393
1394 val &= ~PM_CTL_WUPS_;
1395 val |= PM_CTL_WUPS_WOL_;
1396
1397 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1398 if (ret < 0)
1399 return ret;
1400
1401 pdata->suspend_flags |= SUSPEND_SUSPEND3;
1402
1403 return 0;
1404}
1405
1406static int smsc95xx_autosuspend(struct usbnet *dev, u32 link_up)
1407{
1408 struct smsc95xx_priv *pdata = dev->driver_priv;
1409 int ret;
1410
1411 if (!netif_running(dev->net)) {
1412
1413 netdev_dbg(dev->net, "autosuspend entering SUSPEND2\n");
1414 return smsc95xx_enter_suspend2(dev);
1415 }
1416
1417 if (!link_up) {
1418
1419
1420
1421
1422 if (!(pdata->features & FEATURE_PHY_NLP_CROSSOVER)) {
1423 netdev_warn(dev->net, "EDPD not supported\n");
1424 return -EBUSY;
1425 }
1426
1427 netdev_dbg(dev->net, "autosuspend entering SUSPEND1\n");
1428
1429
1430 ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
1431 PHY_INT_MASK_ANEG_COMP_);
1432 if (ret < 0) {
1433 netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
1434 return ret;
1435 }
1436
1437 netdev_info(dev->net, "entering SUSPEND1 mode\n");
1438 return smsc95xx_enter_suspend1(dev);
1439 }
1440
1441
1442 ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
1443 PHY_INT_MASK_LINK_DOWN_);
1444 if (ret < 0) {
1445 netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
1446 return ret;
1447 }
1448
1449 netdev_dbg(dev->net, "autosuspend entering SUSPEND3\n");
1450 return smsc95xx_enter_suspend3(dev);
1451}
1452
1453static int smsc95xx_suspend(struct usb_interface *intf, pm_message_t message)
1454{
1455 struct usbnet *dev = usb_get_intfdata(intf);
1456 struct smsc95xx_priv *pdata = dev->driver_priv;
1457 u32 val, link_up;
1458 int ret;
1459
1460 ret = usbnet_suspend(intf, message);
1461 if (ret < 0) {
1462 netdev_warn(dev->net, "usbnet_suspend error\n");
1463 return ret;
1464 }
1465
1466 if (pdata->suspend_flags) {
1467 netdev_warn(dev->net, "error during last resume\n");
1468 pdata->suspend_flags = 0;
1469 }
1470
1471
1472 link_up = smsc95xx_link_ok_nopm(dev);
1473
1474 if (message.event == PM_EVENT_AUTO_SUSPEND &&
1475 (pdata->features & FEATURE_REMOTE_WAKEUP)) {
1476 ret = smsc95xx_autosuspend(dev, link_up);
1477 goto done;
1478 }
1479
1480
1481
1482
1483
1484 if (!(pdata->wolopts & SUPPORTED_WAKE) ||
1485 !(link_up || (pdata->wolopts & WAKE_PHY))) {
1486 netdev_info(dev->net, "entering SUSPEND2 mode\n");
1487
1488
1489 ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
1490 if (ret < 0)
1491 goto done;
1492
1493 val &= ~(WUCSR_MPEN_ | WUCSR_WAKE_EN_);
1494
1495 ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
1496 if (ret < 0)
1497 goto done;
1498
1499 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1500 if (ret < 0)
1501 goto done;
1502
1503 val &= ~(PM_CTL_ED_EN_ | PM_CTL_WOL_EN_);
1504
1505 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1506 if (ret < 0)
1507 goto done;
1508
1509 ret = smsc95xx_enter_suspend2(dev);
1510 goto done;
1511 }
1512
1513 if (pdata->wolopts & WAKE_PHY) {
1514 ret = smsc95xx_enable_phy_wakeup_interrupts(dev,
1515 (PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_LINK_DOWN_));
1516 if (ret < 0) {
1517 netdev_warn(dev->net, "error enabling PHY wakeup ints\n");
1518 goto done;
1519 }
1520
1521
1522
1523
1524 if (!link_up) {
1525 netdev_info(dev->net, "entering SUSPEND1 mode\n");
1526 ret = smsc95xx_enter_suspend1(dev);
1527 goto done;
1528 }
1529 }
1530
1531 if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) {
1532 u32 *filter_mask = kcalloc(32, sizeof(u32), GFP_KERNEL);
1533 u32 command[2];
1534 u32 offset[2];
1535 u32 crc[4];
1536 int wuff_filter_count =
1537 (pdata->features & FEATURE_8_WAKEUP_FILTERS) ?
1538 LAN9500A_WUFF_NUM : LAN9500_WUFF_NUM;
1539 int i, filter = 0;
1540
1541 if (!filter_mask) {
1542 netdev_warn(dev->net, "Unable to allocate filter_mask\n");
1543 ret = -ENOMEM;
1544 goto done;
1545 }
1546
1547 memset(command, 0, sizeof(command));
1548 memset(offset, 0, sizeof(offset));
1549 memset(crc, 0, sizeof(crc));
1550
1551 if (pdata->wolopts & WAKE_BCAST) {
1552 const u8 bcast[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
1553 netdev_info(dev->net, "enabling broadcast detection\n");
1554 filter_mask[filter * 4] = 0x003F;
1555 filter_mask[filter * 4 + 1] = 0x00;
1556 filter_mask[filter * 4 + 2] = 0x00;
1557 filter_mask[filter * 4 + 3] = 0x00;
1558 command[filter/4] |= 0x05UL << ((filter % 4) * 8);
1559 offset[filter/4] |= 0x00 << ((filter % 4) * 8);
1560 crc[filter/2] |= smsc_crc(bcast, 6, filter);
1561 filter++;
1562 }
1563
1564 if (pdata->wolopts & WAKE_MCAST) {
1565 const u8 mcast[] = {0x01, 0x00, 0x5E};
1566 netdev_info(dev->net, "enabling multicast detection\n");
1567 filter_mask[filter * 4] = 0x0007;
1568 filter_mask[filter * 4 + 1] = 0x00;
1569 filter_mask[filter * 4 + 2] = 0x00;
1570 filter_mask[filter * 4 + 3] = 0x00;
1571 command[filter/4] |= 0x09UL << ((filter % 4) * 8);
1572 offset[filter/4] |= 0x00 << ((filter % 4) * 8);
1573 crc[filter/2] |= smsc_crc(mcast, 3, filter);
1574 filter++;
1575 }
1576
1577 if (pdata->wolopts & WAKE_ARP) {
1578 const u8 arp[] = {0x08, 0x06};
1579 netdev_info(dev->net, "enabling ARP detection\n");
1580 filter_mask[filter * 4] = 0x0003;
1581 filter_mask[filter * 4 + 1] = 0x00;
1582 filter_mask[filter * 4 + 2] = 0x00;
1583 filter_mask[filter * 4 + 3] = 0x00;
1584 command[filter/4] |= 0x05UL << ((filter % 4) * 8);
1585 offset[filter/4] |= 0x0C << ((filter % 4) * 8);
1586 crc[filter/2] |= smsc_crc(arp, 2, filter);
1587 filter++;
1588 }
1589
1590 if (pdata->wolopts & WAKE_UCAST) {
1591 netdev_info(dev->net, "enabling unicast detection\n");
1592 filter_mask[filter * 4] = 0x003F;
1593 filter_mask[filter * 4 + 1] = 0x00;
1594 filter_mask[filter * 4 + 2] = 0x00;
1595 filter_mask[filter * 4 + 3] = 0x00;
1596 command[filter/4] |= 0x01UL << ((filter % 4) * 8);
1597 offset[filter/4] |= 0x00 << ((filter % 4) * 8);
1598 crc[filter/2] |= smsc_crc(dev->net->dev_addr, ETH_ALEN, filter);
1599 filter++;
1600 }
1601
1602 for (i = 0; i < (wuff_filter_count * 4); i++) {
1603 ret = smsc95xx_write_reg_nopm(dev, WUFF, filter_mask[i]);
1604 if (ret < 0) {
1605 kfree(filter_mask);
1606 goto done;
1607 }
1608 }
1609 kfree(filter_mask);
1610
1611 for (i = 0; i < (wuff_filter_count / 4); i++) {
1612 ret = smsc95xx_write_reg_nopm(dev, WUFF, command[i]);
1613 if (ret < 0)
1614 goto done;
1615 }
1616
1617 for (i = 0; i < (wuff_filter_count / 4); i++) {
1618 ret = smsc95xx_write_reg_nopm(dev, WUFF, offset[i]);
1619 if (ret < 0)
1620 goto done;
1621 }
1622
1623 for (i = 0; i < (wuff_filter_count / 2); i++) {
1624 ret = smsc95xx_write_reg_nopm(dev, WUFF, crc[i]);
1625 if (ret < 0)
1626 goto done;
1627 }
1628
1629
1630 ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
1631 if (ret < 0)
1632 goto done;
1633
1634 val |= WUCSR_WUFR_;
1635
1636 ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
1637 if (ret < 0)
1638 goto done;
1639 }
1640
1641 if (pdata->wolopts & WAKE_MAGIC) {
1642
1643 ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
1644 if (ret < 0)
1645 goto done;
1646
1647 val |= WUCSR_MPR_;
1648
1649 ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
1650 if (ret < 0)
1651 goto done;
1652 }
1653
1654
1655 ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
1656 if (ret < 0)
1657 goto done;
1658
1659 if (pdata->wolopts & (WAKE_BCAST | WAKE_MCAST | WAKE_ARP | WAKE_UCAST)) {
1660 netdev_info(dev->net, "enabling pattern match wakeup\n");
1661 val |= WUCSR_WAKE_EN_;
1662 } else {
1663 netdev_info(dev->net, "disabling pattern match wakeup\n");
1664 val &= ~WUCSR_WAKE_EN_;
1665 }
1666
1667 if (pdata->wolopts & WAKE_MAGIC) {
1668 netdev_info(dev->net, "enabling magic packet wakeup\n");
1669 val |= WUCSR_MPEN_;
1670 } else {
1671 netdev_info(dev->net, "disabling magic packet wakeup\n");
1672 val &= ~WUCSR_MPEN_;
1673 }
1674
1675 ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
1676 if (ret < 0)
1677 goto done;
1678
1679
1680 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1681 if (ret < 0)
1682 goto done;
1683
1684 val |= PM_CTL_WOL_EN_;
1685
1686
1687 if (pdata->wolopts & WAKE_PHY)
1688 val |= PM_CTL_ED_EN_;
1689
1690 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1691 if (ret < 0)
1692 goto done;
1693
1694
1695 smsc95xx_start_rx_path(dev, 1);
1696
1697
1698 netdev_info(dev->net, "entering SUSPEND0 mode\n");
1699 ret = smsc95xx_enter_suspend0(dev);
1700
1701done:
1702
1703
1704
1705
1706 if (ret && PMSG_IS_AUTO(message))
1707 usbnet_resume(intf);
1708
1709 return ret;
1710}
1711
1712static int smsc95xx_resume(struct usb_interface *intf)
1713{
1714 struct usbnet *dev = usb_get_intfdata(intf);
1715 struct smsc95xx_priv *pdata;
1716 u8 suspend_flags;
1717 int ret;
1718 u32 val;
1719
1720 BUG_ON(!dev);
1721 pdata = dev->driver_priv;
1722 suspend_flags = pdata->suspend_flags;
1723
1724 netdev_dbg(dev->net, "resume suspend_flags=0x%02x\n", suspend_flags);
1725
1726
1727 pdata->suspend_flags = 0;
1728
1729 if (suspend_flags & SUSPEND_ALLMODES) {
1730
1731 ret = smsc95xx_read_reg_nopm(dev, WUCSR, &val);
1732 if (ret < 0)
1733 return ret;
1734
1735 val &= ~(WUCSR_WAKE_EN_ | WUCSR_MPEN_);
1736
1737 ret = smsc95xx_write_reg_nopm(dev, WUCSR, val);
1738 if (ret < 0)
1739 return ret;
1740
1741
1742 ret = smsc95xx_read_reg_nopm(dev, PM_CTRL, &val);
1743 if (ret < 0)
1744 return ret;
1745
1746 val &= ~PM_CTL_WOL_EN_;
1747 val |= PM_CTL_WUPS_;
1748
1749 ret = smsc95xx_write_reg_nopm(dev, PM_CTRL, val);
1750 if (ret < 0)
1751 return ret;
1752 }
1753
1754 ret = usbnet_resume(intf);
1755 if (ret < 0)
1756 netdev_warn(dev->net, "usbnet_resume error\n");
1757
1758 phy_init_hw(pdata->phydev);
1759 return ret;
1760}
1761
1762static int smsc95xx_reset_resume(struct usb_interface *intf)
1763{
1764 struct usbnet *dev = usb_get_intfdata(intf);
1765 int ret;
1766
1767 ret = smsc95xx_reset(dev);
1768 if (ret < 0)
1769 return ret;
1770
1771 return smsc95xx_resume(intf);
1772}
1773
1774static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
1775{
1776 skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
1777 skb->ip_summed = CHECKSUM_COMPLETE;
1778 skb_trim(skb, skb->len - 2);
1779}
1780
1781static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1782{
1783
1784 if (skb->len < dev->net->hard_header_len)
1785 return 0;
1786
1787 while (skb->len > 0) {
1788 u32 header, align_count;
1789 struct sk_buff *ax_skb;
1790 unsigned char *packet;
1791 u16 size;
1792
1793 header = get_unaligned_le32(skb->data);
1794 skb_pull(skb, 4 + NET_IP_ALIGN);
1795 packet = skb->data;
1796
1797
1798 size = (u16)((header & RX_STS_FL_) >> 16);
1799 align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
1800
1801 if (unlikely(header & RX_STS_ES_)) {
1802 netif_dbg(dev, rx_err, dev->net,
1803 "Error header=0x%08x\n", header);
1804 dev->net->stats.rx_errors++;
1805 dev->net->stats.rx_dropped++;
1806
1807 if (header & RX_STS_CRC_) {
1808 dev->net->stats.rx_crc_errors++;
1809 } else {
1810 if (header & (RX_STS_TL_ | RX_STS_RF_))
1811 dev->net->stats.rx_frame_errors++;
1812
1813 if ((header & RX_STS_LE_) &&
1814 (!(header & RX_STS_FT_)))
1815 dev->net->stats.rx_length_errors++;
1816 }
1817 } else {
1818
1819 if (unlikely(size > (ETH_FRAME_LEN + 12))) {
1820 netif_dbg(dev, rx_err, dev->net,
1821 "size err header=0x%08x\n", header);
1822 return 0;
1823 }
1824
1825
1826 if (skb->len == size) {
1827 if (dev->net->features & NETIF_F_RXCSUM)
1828 smsc95xx_rx_csum_offload(skb);
1829 skb_trim(skb, skb->len - 4);
1830 skb->truesize = size + sizeof(struct sk_buff);
1831
1832 return 1;
1833 }
1834
1835 ax_skb = skb_clone(skb, GFP_ATOMIC);
1836 if (unlikely(!ax_skb)) {
1837 netdev_warn(dev->net, "Error allocating skb\n");
1838 return 0;
1839 }
1840
1841 ax_skb->len = size;
1842 ax_skb->data = packet;
1843 skb_set_tail_pointer(ax_skb, size);
1844
1845 if (dev->net->features & NETIF_F_RXCSUM)
1846 smsc95xx_rx_csum_offload(ax_skb);
1847 skb_trim(ax_skb, ax_skb->len - 4);
1848 ax_skb->truesize = size + sizeof(struct sk_buff);
1849
1850 usbnet_skb_return(dev, ax_skb);
1851 }
1852
1853 skb_pull(skb, size);
1854
1855
1856 if (skb->len)
1857 skb_pull(skb, align_count);
1858 }
1859
1860 return 1;
1861}
1862
1863static u32 smsc95xx_calc_csum_preamble(struct sk_buff *skb)
1864{
1865 u16 low_16 = (u16)skb_checksum_start_offset(skb);
1866 u16 high_16 = low_16 + skb->csum_offset;
1867 return (high_16 << 16) | low_16;
1868}
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878static bool smsc95xx_can_tx_checksum(struct sk_buff *skb)
1879{
1880 unsigned int len = skb->len - skb_checksum_start_offset(skb);
1881
1882 if (skb->len <= 45)
1883 return false;
1884 return skb->csum_offset < (len - (4 + 1));
1885}
1886
1887static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
1888 struct sk_buff *skb, gfp_t flags)
1889{
1890 bool csum = skb->ip_summed == CHECKSUM_PARTIAL;
1891 int overhead = csum ? SMSC95XX_TX_OVERHEAD_CSUM : SMSC95XX_TX_OVERHEAD;
1892 u32 tx_cmd_a, tx_cmd_b;
1893 void *ptr;
1894
1895
1896 BUG_ON(skb_shinfo(skb)->nr_frags);
1897
1898
1899 if (skb_cow_head(skb, overhead)) {
1900
1901
1902
1903 dev_kfree_skb_any(skb);
1904 return NULL;
1905 }
1906
1907 tx_cmd_b = (u32)skb->len;
1908 tx_cmd_a = tx_cmd_b | TX_CMD_A_FIRST_SEG_ | TX_CMD_A_LAST_SEG_;
1909
1910 if (csum) {
1911 if (!smsc95xx_can_tx_checksum(skb)) {
1912
1913
1914 long csstart = skb_checksum_start_offset(skb);
1915 __wsum calc = csum_partial(skb->data + csstart,
1916 skb->len - csstart, 0);
1917 *((__sum16 *)(skb->data + csstart
1918 + skb->csum_offset)) = csum_fold(calc);
1919
1920 csum = false;
1921 } else {
1922 u32 csum_preamble = smsc95xx_calc_csum_preamble(skb);
1923 ptr = skb_push(skb, 4);
1924 put_unaligned_le32(csum_preamble, ptr);
1925
1926 tx_cmd_a += 4;
1927 tx_cmd_b += 4;
1928 tx_cmd_b |= TX_CMD_B_CSUM_ENABLE;
1929 }
1930 }
1931
1932 ptr = skb_push(skb, 8);
1933 put_unaligned_le32(tx_cmd_a, ptr);
1934 put_unaligned_le32(tx_cmd_b, ptr+4);
1935
1936 return skb;
1937}
1938
1939static int smsc95xx_manage_power(struct usbnet *dev, int on)
1940{
1941 struct smsc95xx_priv *pdata = dev->driver_priv;
1942
1943 dev->intf->needs_remote_wakeup = on;
1944
1945 if (pdata->features & FEATURE_REMOTE_WAKEUP)
1946 return 0;
1947
1948
1949 netdev_info(dev->net, "hardware isn't capable of remote wakeup\n");
1950
1951 if (on)
1952 usb_autopm_get_interface_no_resume(dev->intf);
1953 else
1954 usb_autopm_put_interface(dev->intf);
1955
1956 return 0;
1957}
1958
1959static const struct driver_info smsc95xx_info = {
1960 .description = "smsc95xx USB 2.0 Ethernet",
1961 .bind = smsc95xx_bind,
1962 .unbind = smsc95xx_unbind,
1963 .link_reset = smsc95xx_link_reset,
1964 .reset = smsc95xx_start_phy,
1965 .stop = smsc95xx_disconnect_phy,
1966 .rx_fixup = smsc95xx_rx_fixup,
1967 .tx_fixup = smsc95xx_tx_fixup,
1968 .status = smsc95xx_status,
1969 .manage_power = smsc95xx_manage_power,
1970 .flags = FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR,
1971};
1972
1973static const struct usb_device_id products[] = {
1974 {
1975
1976 USB_DEVICE(0x0424, 0x9500),
1977 .driver_info = (unsigned long) &smsc95xx_info,
1978 },
1979 {
1980
1981 USB_DEVICE(0x0424, 0x9505),
1982 .driver_info = (unsigned long) &smsc95xx_info,
1983 },
1984 {
1985
1986 USB_DEVICE(0x0424, 0x9E00),
1987 .driver_info = (unsigned long) &smsc95xx_info,
1988 },
1989 {
1990
1991 USB_DEVICE(0x0424, 0x9E01),
1992 .driver_info = (unsigned long) &smsc95xx_info,
1993 },
1994 {
1995
1996 USB_DEVICE(0x0424, 0xec00),
1997 .driver_info = (unsigned long) &smsc95xx_info,
1998 },
1999 {
2000
2001 USB_DEVICE(0x0424, 0x9900),
2002 .driver_info = (unsigned long) &smsc95xx_info,
2003 },
2004 {
2005
2006 USB_DEVICE(0x0424, 0x9901),
2007 .driver_info = (unsigned long) &smsc95xx_info,
2008 },
2009 {
2010
2011 USB_DEVICE(0x0424, 0x9902),
2012 .driver_info = (unsigned long) &smsc95xx_info,
2013 },
2014 {
2015
2016 USB_DEVICE(0x0424, 0x9903),
2017 .driver_info = (unsigned long) &smsc95xx_info,
2018 },
2019 {
2020
2021 USB_DEVICE(0x0424, 0x9904),
2022 .driver_info = (unsigned long) &smsc95xx_info,
2023 },
2024 {
2025
2026 USB_DEVICE(0x0424, 0x9905),
2027 .driver_info = (unsigned long) &smsc95xx_info,
2028 },
2029 {
2030
2031 USB_DEVICE(0x0424, 0x9906),
2032 .driver_info = (unsigned long) &smsc95xx_info,
2033 },
2034 {
2035
2036 USB_DEVICE(0x0424, 0x9907),
2037 .driver_info = (unsigned long) &smsc95xx_info,
2038 },
2039 {
2040
2041 USB_DEVICE(0x0424, 0x9908),
2042 .driver_info = (unsigned long) &smsc95xx_info,
2043 },
2044 {
2045
2046 USB_DEVICE(0x0424, 0x9909),
2047 .driver_info = (unsigned long) &smsc95xx_info,
2048 },
2049 {
2050
2051 USB_DEVICE(0x0424, 0x9530),
2052 .driver_info = (unsigned long) &smsc95xx_info,
2053 },
2054 {
2055
2056 USB_DEVICE(0x0424, 0x9730),
2057 .driver_info = (unsigned long) &smsc95xx_info,
2058 },
2059 {
2060
2061 USB_DEVICE(0x0424, 0x9E08),
2062 .driver_info = (unsigned long) &smsc95xx_info,
2063 },
2064 { },
2065};
2066MODULE_DEVICE_TABLE(usb, products);
2067
2068static struct usb_driver smsc95xx_driver = {
2069 .name = "smsc95xx",
2070 .id_table = products,
2071 .probe = usbnet_probe,
2072 .suspend = smsc95xx_suspend,
2073 .resume = smsc95xx_resume,
2074 .reset_resume = smsc95xx_reset_resume,
2075 .disconnect = usbnet_disconnect,
2076 .disable_hub_initiated_lpm = 1,
2077 .supports_autosuspend = 1,
2078};
2079
2080module_usb_driver(smsc95xx_driver);
2081
2082MODULE_AUTHOR("Nancy Lin");
2083MODULE_AUTHOR("Steve Glendinning <steve.glendinning@shawell.net>");
2084MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
2085MODULE_LICENSE("GPL");
2086
