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19a38d8e LJ |
1 | /* CoreChip-sz SR9800 one chip USB 2.0 Ethernet Devices |
2 | * | |
3 | * Author : Liu Junliang <liujunliang_ljl@163.com> | |
4 | * | |
5 | * Based on asix_common.c, asix_devices.c | |
6 | * | |
7 | * This file is licensed under the terms of the GNU General Public License | |
8 | * version 2. This program is licensed "as is" without any warranty of any | |
9 | * kind, whether express or implied.* | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/kmod.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/netdevice.h> | |
16 | #include <linux/etherdevice.h> | |
17 | #include <linux/ethtool.h> | |
18 | #include <linux/workqueue.h> | |
19 | #include <linux/mii.h> | |
20 | #include <linux/usb.h> | |
21 | #include <linux/crc32.h> | |
22 | #include <linux/usb/usbnet.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/if_vlan.h> | |
25 | ||
26 | #include "sr9800.h" | |
27 | ||
28 | static int sr_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, | |
29 | u16 size, void *data) | |
30 | { | |
31 | int err; | |
32 | ||
33 | err = usbnet_read_cmd(dev, cmd, SR_REQ_RD_REG, value, index, | |
34 | data, size); | |
35 | if ((err != size) && (err >= 0)) | |
36 | err = -EINVAL; | |
37 | ||
38 | return err; | |
39 | } | |
40 | ||
41 | static int sr_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, | |
42 | u16 size, void *data) | |
43 | { | |
44 | int err; | |
45 | ||
46 | err = usbnet_write_cmd(dev, cmd, SR_REQ_WR_REG, value, index, | |
47 | data, size); | |
48 | if ((err != size) && (err >= 0)) | |
49 | err = -EINVAL; | |
50 | ||
51 | return err; | |
52 | } | |
53 | ||
54 | static void | |
55 | sr_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, | |
56 | u16 size, void *data) | |
57 | { | |
58 | usbnet_write_cmd_async(dev, cmd, SR_REQ_WR_REG, value, index, data, | |
59 | size); | |
60 | } | |
61 | ||
62 | static int sr_rx_fixup(struct usbnet *dev, struct sk_buff *skb) | |
63 | { | |
64 | int offset = 0; | |
65 | ||
66 | while (offset + sizeof(u32) < skb->len) { | |
67 | struct sk_buff *sr_skb; | |
68 | u16 size; | |
69 | u32 header = get_unaligned_le32(skb->data + offset); | |
70 | ||
71 | offset += sizeof(u32); | |
72 | /* get the packet length */ | |
73 | size = (u16) (header & 0x7ff); | |
74 | if (size != ((~header >> 16) & 0x07ff)) { | |
75 | netdev_err(dev->net, "%s : Bad Header Length\n", | |
76 | __func__); | |
77 | return 0; | |
78 | } | |
79 | ||
80 | if ((size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) || | |
81 | (size + offset > skb->len)) { | |
82 | netdev_err(dev->net, "%s : Bad RX Length %d\n", | |
83 | __func__, size); | |
84 | return 0; | |
85 | } | |
86 | sr_skb = netdev_alloc_skb_ip_align(dev->net, size); | |
87 | if (!sr_skb) | |
88 | return 0; | |
89 | ||
90 | skb_put(sr_skb, size); | |
91 | memcpy(sr_skb->data, skb->data + offset, size); | |
92 | usbnet_skb_return(dev, sr_skb); | |
93 | ||
94 | offset += (size + 1) & 0xfffe; | |
95 | } | |
96 | ||
97 | if (skb->len != offset) { | |
98 | netdev_err(dev->net, "%s : Bad SKB Length %d\n", __func__, | |
99 | skb->len); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | return 1; | |
104 | } | |
105 | ||
106 | static struct sk_buff *sr_tx_fixup(struct usbnet *dev, struct sk_buff *skb, | |
107 | gfp_t flags) | |
108 | { | |
109 | int headroom = skb_headroom(skb); | |
110 | int tailroom = skb_tailroom(skb); | |
111 | u32 padbytes = 0xffff0000; | |
112 | u32 packet_len; | |
113 | int padlen; | |
114 | ||
115 | padlen = ((skb->len + 4) % (dev->maxpacket - 1)) ? 0 : 4; | |
116 | ||
117 | if ((!skb_cloned(skb)) && ((headroom + tailroom) >= (4 + padlen))) { | |
118 | if ((headroom < 4) || (tailroom < padlen)) { | |
119 | skb->data = memmove(skb->head + 4, skb->data, | |
120 | skb->len); | |
121 | skb_set_tail_pointer(skb, skb->len); | |
122 | } | |
123 | } else { | |
124 | struct sk_buff *skb2; | |
125 | skb2 = skb_copy_expand(skb, 4, padlen, flags); | |
126 | dev_kfree_skb_any(skb); | |
127 | skb = skb2; | |
128 | if (!skb) | |
129 | return NULL; | |
130 | } | |
131 | ||
132 | skb_push(skb, 4); | |
133 | packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); | |
134 | cpu_to_le32s(&packet_len); | |
135 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); | |
136 | ||
137 | if (padlen) { | |
138 | cpu_to_le32s(&padbytes); | |
139 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); | |
140 | skb_put(skb, sizeof(padbytes)); | |
141 | } | |
142 | ||
143 | return skb; | |
144 | } | |
145 | ||
146 | static void sr_status(struct usbnet *dev, struct urb *urb) | |
147 | { | |
148 | struct sr9800_int_data *event; | |
149 | int link; | |
150 | ||
151 | if (urb->actual_length < 8) | |
152 | return; | |
153 | ||
154 | event = urb->transfer_buffer; | |
155 | link = event->link & 0x01; | |
156 | if (netif_carrier_ok(dev->net) != link) { | |
157 | usbnet_link_change(dev, link, 1); | |
158 | netdev_dbg(dev->net, "Link Status is: %d\n", link); | |
159 | } | |
160 | ||
161 | return; | |
162 | } | |
163 | ||
164 | static inline int sr_set_sw_mii(struct usbnet *dev) | |
165 | { | |
166 | int ret; | |
167 | ||
168 | ret = sr_write_cmd(dev, SR_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); | |
169 | if (ret < 0) | |
170 | netdev_err(dev->net, "Failed to enable software MII access\n"); | |
171 | return ret; | |
172 | } | |
173 | ||
174 | static inline int sr_set_hw_mii(struct usbnet *dev) | |
175 | { | |
176 | int ret; | |
177 | ||
178 | ret = sr_write_cmd(dev, SR_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); | |
179 | if (ret < 0) | |
180 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); | |
181 | return ret; | |
182 | } | |
183 | ||
184 | static inline int sr_get_phy_addr(struct usbnet *dev) | |
185 | { | |
186 | u8 buf[2]; | |
187 | int ret; | |
188 | ||
189 | ret = sr_read_cmd(dev, SR_CMD_READ_PHY_ID, 0, 0, 2, buf); | |
190 | if (ret < 0) { | |
191 | netdev_err(dev->net, "%s : Error reading PHYID register:%02x\n", | |
192 | __func__, ret); | |
193 | goto out; | |
194 | } | |
195 | netdev_dbg(dev->net, "%s : returning 0x%04x\n", __func__, | |
196 | *((__le16 *)buf)); | |
197 | ||
198 | ret = buf[1]; | |
199 | ||
200 | out: | |
201 | return ret; | |
202 | } | |
203 | ||
204 | static int sr_sw_reset(struct usbnet *dev, u8 flags) | |
205 | { | |
206 | int ret; | |
207 | ||
208 | ret = sr_write_cmd(dev, SR_CMD_SW_RESET, flags, 0, 0, NULL); | |
209 | if (ret < 0) | |
210 | netdev_err(dev->net, "Failed to send software reset:%02x\n", | |
211 | ret); | |
212 | ||
213 | return ret; | |
214 | } | |
215 | ||
216 | static u16 sr_read_rx_ctl(struct usbnet *dev) | |
217 | { | |
218 | __le16 v; | |
219 | int ret; | |
220 | ||
221 | ret = sr_read_cmd(dev, SR_CMD_READ_RX_CTL, 0, 0, 2, &v); | |
222 | if (ret < 0) { | |
223 | netdev_err(dev->net, "Error reading RX_CTL register:%02x\n", | |
224 | ret); | |
225 | goto out; | |
226 | } | |
227 | ||
228 | ret = le16_to_cpu(v); | |
229 | out: | |
230 | return ret; | |
231 | } | |
232 | ||
233 | static int sr_write_rx_ctl(struct usbnet *dev, u16 mode) | |
234 | { | |
235 | int ret; | |
236 | ||
237 | netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode); | |
238 | ret = sr_write_cmd(dev, SR_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); | |
239 | if (ret < 0) | |
240 | netdev_err(dev->net, | |
241 | "Failed to write RX_CTL mode to 0x%04x:%02x\n", | |
242 | mode, ret); | |
243 | ||
244 | return ret; | |
245 | } | |
246 | ||
247 | static u16 sr_read_medium_status(struct usbnet *dev) | |
248 | { | |
249 | __le16 v; | |
250 | int ret; | |
251 | ||
252 | ret = sr_read_cmd(dev, SR_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v); | |
253 | if (ret < 0) { | |
254 | netdev_err(dev->net, | |
255 | "Error reading Medium Status register:%02x\n", ret); | |
256 | return ret; /* TODO: callers not checking for error ret */ | |
257 | } | |
258 | ||
259 | return le16_to_cpu(v); | |
260 | } | |
261 | ||
262 | static int sr_write_medium_mode(struct usbnet *dev, u16 mode) | |
263 | { | |
264 | int ret; | |
265 | ||
266 | netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode); | |
267 | ret = sr_write_cmd(dev, SR_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); | |
268 | if (ret < 0) | |
269 | netdev_err(dev->net, | |
270 | "Failed to write Medium Mode mode to 0x%04x:%02x\n", | |
271 | mode, ret); | |
272 | return ret; | |
273 | } | |
274 | ||
275 | static int sr_write_gpio(struct usbnet *dev, u16 value, int sleep) | |
276 | { | |
277 | int ret; | |
278 | ||
279 | netdev_dbg(dev->net, "%s : value = 0x%04x\n", __func__, value); | |
280 | ret = sr_write_cmd(dev, SR_CMD_WRITE_GPIOS, value, 0, 0, NULL); | |
281 | if (ret < 0) | |
282 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x:%02x\n", | |
283 | value, ret); | |
284 | if (sleep) | |
285 | msleep(sleep); | |
286 | ||
287 | return ret; | |
288 | } | |
289 | ||
290 | /* SR9800 have a 16-bit RX_CTL value */ | |
291 | static void sr_set_multicast(struct net_device *net) | |
292 | { | |
293 | struct usbnet *dev = netdev_priv(net); | |
294 | struct sr_data *data = (struct sr_data *)&dev->data; | |
295 | u16 rx_ctl = SR_DEFAULT_RX_CTL; | |
296 | ||
297 | if (net->flags & IFF_PROMISC) { | |
298 | rx_ctl |= SR_RX_CTL_PRO; | |
299 | } else if (net->flags & IFF_ALLMULTI || | |
300 | netdev_mc_count(net) > SR_MAX_MCAST) { | |
301 | rx_ctl |= SR_RX_CTL_AMALL; | |
302 | } else if (netdev_mc_empty(net)) { | |
303 | /* just broadcast and directed */ | |
304 | } else { | |
305 | /* We use the 20 byte dev->data | |
306 | * for our 8 byte filter buffer | |
307 | * to avoid allocating memory that | |
308 | * is tricky to free later | |
309 | */ | |
310 | struct netdev_hw_addr *ha; | |
311 | u32 crc_bits; | |
312 | ||
313 | memset(data->multi_filter, 0, SR_MCAST_FILTER_SIZE); | |
314 | ||
315 | /* Build the multicast hash filter. */ | |
316 | netdev_for_each_mc_addr(ha, net) { | |
317 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
318 | data->multi_filter[crc_bits >> 3] |= | |
319 | 1 << (crc_bits & 7); | |
320 | } | |
321 | ||
322 | sr_write_cmd_async(dev, SR_CMD_WRITE_MULTI_FILTER, 0, 0, | |
323 | SR_MCAST_FILTER_SIZE, data->multi_filter); | |
324 | ||
325 | rx_ctl |= SR_RX_CTL_AM; | |
326 | } | |
327 | ||
328 | sr_write_cmd_async(dev, SR_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); | |
329 | } | |
330 | ||
331 | static int sr_mdio_read(struct net_device *net, int phy_id, int loc) | |
332 | { | |
333 | struct usbnet *dev = netdev_priv(net); | |
334 | __le16 res; | |
335 | ||
336 | mutex_lock(&dev->phy_mutex); | |
337 | sr_set_sw_mii(dev); | |
338 | sr_read_cmd(dev, SR_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, &res); | |
339 | sr_set_hw_mii(dev); | |
340 | mutex_unlock(&dev->phy_mutex); | |
341 | ||
342 | netdev_dbg(dev->net, | |
343 | "%s : phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", __func__, | |
344 | phy_id, loc, le16_to_cpu(res)); | |
345 | ||
346 | return le16_to_cpu(res); | |
347 | } | |
348 | ||
349 | static void | |
350 | sr_mdio_write(struct net_device *net, int phy_id, int loc, int val) | |
351 | { | |
352 | struct usbnet *dev = netdev_priv(net); | |
353 | __le16 res = cpu_to_le16(val); | |
354 | ||
355 | netdev_dbg(dev->net, | |
356 | "%s : phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", __func__, | |
357 | phy_id, loc, val); | |
358 | mutex_lock(&dev->phy_mutex); | |
359 | sr_set_sw_mii(dev); | |
360 | sr_write_cmd(dev, SR_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res); | |
361 | sr_set_hw_mii(dev); | |
362 | mutex_unlock(&dev->phy_mutex); | |
363 | } | |
364 | ||
365 | /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */ | |
366 | static u32 sr_get_phyid(struct usbnet *dev) | |
367 | { | |
368 | int phy_reg; | |
369 | u32 phy_id; | |
370 | int i; | |
371 | ||
372 | /* Poll for the rare case the FW or phy isn't ready yet. */ | |
373 | for (i = 0; i < 100; i++) { | |
374 | phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1); | |
375 | if (phy_reg != 0 && phy_reg != 0xFFFF) | |
376 | break; | |
377 | mdelay(1); | |
378 | } | |
379 | ||
380 | if (phy_reg <= 0 || phy_reg == 0xFFFF) | |
381 | return 0; | |
382 | ||
383 | phy_id = (phy_reg & 0xffff) << 16; | |
384 | ||
385 | phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2); | |
386 | if (phy_reg < 0) | |
387 | return 0; | |
388 | ||
389 | phy_id |= (phy_reg & 0xffff); | |
390 | ||
391 | return phy_id; | |
392 | } | |
393 | ||
394 | static void | |
395 | sr_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) | |
396 | { | |
397 | struct usbnet *dev = netdev_priv(net); | |
398 | u8 opt; | |
399 | ||
400 | if (sr_read_cmd(dev, SR_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { | |
401 | wolinfo->supported = 0; | |
402 | wolinfo->wolopts = 0; | |
403 | return; | |
404 | } | |
405 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
406 | wolinfo->wolopts = 0; | |
407 | if (opt & SR_MONITOR_LINK) | |
408 | wolinfo->wolopts |= WAKE_PHY; | |
409 | if (opt & SR_MONITOR_MAGIC) | |
410 | wolinfo->wolopts |= WAKE_MAGIC; | |
411 | } | |
412 | ||
413 | static int | |
414 | sr_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) | |
415 | { | |
416 | struct usbnet *dev = netdev_priv(net); | |
417 | u8 opt = 0; | |
418 | ||
419 | if (wolinfo->wolopts & WAKE_PHY) | |
420 | opt |= SR_MONITOR_LINK; | |
421 | if (wolinfo->wolopts & WAKE_MAGIC) | |
422 | opt |= SR_MONITOR_MAGIC; | |
423 | ||
424 | if (sr_write_cmd(dev, SR_CMD_WRITE_MONITOR_MODE, | |
425 | opt, 0, 0, NULL) < 0) | |
426 | return -EINVAL; | |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static int sr_get_eeprom_len(struct net_device *net) | |
432 | { | |
433 | struct usbnet *dev = netdev_priv(net); | |
434 | struct sr_data *data = (struct sr_data *)&dev->data; | |
435 | ||
436 | return data->eeprom_len; | |
437 | } | |
438 | ||
439 | static int sr_get_eeprom(struct net_device *net, | |
440 | struct ethtool_eeprom *eeprom, u8 *data) | |
441 | { | |
442 | struct usbnet *dev = netdev_priv(net); | |
443 | __le16 *ebuf = (__le16 *)data; | |
444 | int ret; | |
445 | int i; | |
446 | ||
447 | /* Crude hack to ensure that we don't overwrite memory | |
448 | * if an odd length is supplied | |
449 | */ | |
450 | if (eeprom->len % 2) | |
451 | return -EINVAL; | |
452 | ||
453 | eeprom->magic = SR_EEPROM_MAGIC; | |
454 | ||
455 | /* sr9800 returns 2 bytes from eeprom on read */ | |
456 | for (i = 0; i < eeprom->len / 2; i++) { | |
457 | ret = sr_read_cmd(dev, SR_CMD_READ_EEPROM, eeprom->offset + i, | |
458 | 0, 2, &ebuf[i]); | |
459 | if (ret < 0) | |
460 | return -EINVAL; | |
461 | } | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static void sr_get_drvinfo(struct net_device *net, | |
466 | struct ethtool_drvinfo *info) | |
467 | { | |
468 | struct usbnet *dev = netdev_priv(net); | |
469 | struct sr_data *data = (struct sr_data *)&dev->data; | |
470 | ||
471 | /* Inherit standard device info */ | |
472 | usbnet_get_drvinfo(net, info); | |
473 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); | |
474 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
475 | info->eedump_len = data->eeprom_len; | |
476 | } | |
477 | ||
478 | static u32 sr_get_link(struct net_device *net) | |
479 | { | |
480 | struct usbnet *dev = netdev_priv(net); | |
481 | ||
482 | return mii_link_ok(&dev->mii); | |
483 | } | |
484 | ||
485 | static int sr_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
486 | { | |
487 | struct usbnet *dev = netdev_priv(net); | |
488 | ||
489 | return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); | |
490 | } | |
491 | ||
492 | static int sr_set_mac_address(struct net_device *net, void *p) | |
493 | { | |
494 | struct usbnet *dev = netdev_priv(net); | |
495 | struct sr_data *data = (struct sr_data *)&dev->data; | |
496 | struct sockaddr *addr = p; | |
497 | ||
498 | if (netif_running(net)) | |
499 | return -EBUSY; | |
500 | if (!is_valid_ether_addr(addr->sa_data)) | |
501 | return -EADDRNOTAVAIL; | |
502 | ||
503 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
504 | ||
505 | /* We use the 20 byte dev->data | |
506 | * for our 6 byte mac buffer | |
507 | * to avoid allocating memory that | |
508 | * is tricky to free later | |
509 | */ | |
510 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
511 | sr_write_cmd_async(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
512 | data->mac_addr); | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
517 | static const struct ethtool_ops sr9800_ethtool_ops = { | |
518 | .get_drvinfo = sr_get_drvinfo, | |
519 | .get_link = sr_get_link, | |
520 | .get_msglevel = usbnet_get_msglevel, | |
521 | .set_msglevel = usbnet_set_msglevel, | |
522 | .get_wol = sr_get_wol, | |
523 | .set_wol = sr_set_wol, | |
524 | .get_eeprom_len = sr_get_eeprom_len, | |
525 | .get_eeprom = sr_get_eeprom, | |
526 | .get_settings = usbnet_get_settings, | |
527 | .set_settings = usbnet_set_settings, | |
528 | .nway_reset = usbnet_nway_reset, | |
529 | }; | |
530 | ||
531 | static int sr9800_link_reset(struct usbnet *dev) | |
532 | { | |
533 | struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; | |
534 | u16 mode; | |
535 | ||
536 | mii_check_media(&dev->mii, 1, 1); | |
537 | mii_ethtool_gset(&dev->mii, &ecmd); | |
538 | mode = SR9800_MEDIUM_DEFAULT; | |
539 | ||
540 | if (ethtool_cmd_speed(&ecmd) != SPEED_100) | |
541 | mode &= ~SR_MEDIUM_PS; | |
542 | ||
543 | if (ecmd.duplex != DUPLEX_FULL) | |
544 | mode &= ~SR_MEDIUM_FD; | |
545 | ||
546 | netdev_dbg(dev->net, "%s : speed: %u duplex: %d mode: 0x%04x\n", | |
547 | __func__, ethtool_cmd_speed(&ecmd), ecmd.duplex, mode); | |
548 | ||
549 | sr_write_medium_mode(dev, mode); | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | ||
555 | static int sr9800_set_default_mode(struct usbnet *dev) | |
556 | { | |
557 | u16 rx_ctl; | |
558 | int ret; | |
559 | ||
560 | sr_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); | |
561 | sr_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, | |
562 | ADVERTISE_ALL | ADVERTISE_CSMA); | |
563 | mii_nway_restart(&dev->mii); | |
564 | ||
565 | ret = sr_write_medium_mode(dev, SR9800_MEDIUM_DEFAULT); | |
566 | if (ret < 0) | |
567 | goto out; | |
568 | ||
569 | ret = sr_write_cmd(dev, SR_CMD_WRITE_IPG012, | |
570 | SR9800_IPG0_DEFAULT | SR9800_IPG1_DEFAULT, | |
571 | SR9800_IPG2_DEFAULT, 0, NULL); | |
572 | if (ret < 0) { | |
573 | netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret); | |
574 | goto out; | |
575 | } | |
576 | ||
577 | /* Set RX_CTL to default values with 2k buffer, and enable cactus */ | |
578 | ret = sr_write_rx_ctl(dev, SR_DEFAULT_RX_CTL); | |
579 | if (ret < 0) | |
580 | goto out; | |
581 | ||
582 | rx_ctl = sr_read_rx_ctl(dev); | |
583 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n", | |
584 | rx_ctl); | |
585 | ||
586 | rx_ctl = sr_read_medium_status(dev); | |
587 | netdev_dbg(dev->net, "Medium Status:0x%04x after all initializations\n", | |
588 | rx_ctl); | |
589 | ||
590 | return 0; | |
591 | out: | |
592 | return ret; | |
593 | } | |
594 | ||
595 | static int sr9800_reset(struct usbnet *dev) | |
596 | { | |
597 | struct sr_data *data = (struct sr_data *)&dev->data; | |
598 | int ret, embd_phy; | |
599 | u16 rx_ctl; | |
600 | ||
601 | ret = sr_write_gpio(dev, | |
602 | SR_GPIO_RSE | SR_GPIO_GPO_2 | SR_GPIO_GPO2EN, 5); | |
603 | if (ret < 0) | |
604 | goto out; | |
605 | ||
606 | embd_phy = ((sr_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0); | |
607 | ||
608 | ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL); | |
609 | if (ret < 0) { | |
610 | netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); | |
611 | goto out; | |
612 | } | |
613 | ||
614 | ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_PRL); | |
615 | if (ret < 0) | |
616 | goto out; | |
617 | ||
618 | msleep(150); | |
619 | ||
620 | ret = sr_sw_reset(dev, SR_SWRESET_CLEAR); | |
621 | if (ret < 0) | |
622 | goto out; | |
623 | ||
624 | msleep(150); | |
625 | ||
626 | if (embd_phy) { | |
627 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
628 | if (ret < 0) | |
629 | goto out; | |
630 | } else { | |
631 | ret = sr_sw_reset(dev, SR_SWRESET_PRTE); | |
632 | if (ret < 0) | |
633 | goto out; | |
634 | } | |
635 | ||
636 | msleep(150); | |
637 | rx_ctl = sr_read_rx_ctl(dev); | |
638 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl); | |
639 | ret = sr_write_rx_ctl(dev, 0x0000); | |
640 | if (ret < 0) | |
641 | goto out; | |
642 | ||
643 | rx_ctl = sr_read_rx_ctl(dev); | |
644 | netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); | |
645 | ||
646 | ret = sr_sw_reset(dev, SR_SWRESET_PRL); | |
647 | if (ret < 0) | |
648 | goto out; | |
649 | ||
650 | msleep(150); | |
651 | ||
652 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL | SR_SWRESET_PRL); | |
653 | if (ret < 0) | |
654 | goto out; | |
655 | ||
656 | msleep(150); | |
657 | ||
658 | ret = sr9800_set_default_mode(dev); | |
659 | if (ret < 0) | |
660 | goto out; | |
661 | ||
662 | /* Rewrite MAC address */ | |
663 | memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN); | |
664 | ret = sr_write_cmd(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
665 | data->mac_addr); | |
666 | if (ret < 0) | |
667 | goto out; | |
668 | ||
669 | return 0; | |
670 | ||
671 | out: | |
672 | return ret; | |
673 | } | |
674 | ||
675 | static const struct net_device_ops sr9800_netdev_ops = { | |
676 | .ndo_open = usbnet_open, | |
677 | .ndo_stop = usbnet_stop, | |
678 | .ndo_start_xmit = usbnet_start_xmit, | |
679 | .ndo_tx_timeout = usbnet_tx_timeout, | |
680 | .ndo_change_mtu = usbnet_change_mtu, | |
681 | .ndo_set_mac_address = sr_set_mac_address, | |
682 | .ndo_validate_addr = eth_validate_addr, | |
683 | .ndo_do_ioctl = sr_ioctl, | |
684 | .ndo_set_rx_mode = sr_set_multicast, | |
685 | }; | |
686 | ||
687 | static int sr9800_phy_powerup(struct usbnet *dev) | |
688 | { | |
689 | int ret; | |
690 | ||
691 | /* set the embedded Ethernet PHY in power-down state */ | |
692 | ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_IPRL); | |
693 | if (ret < 0) { | |
694 | netdev_err(dev->net, "Failed to power down PHY : %d\n", ret); | |
695 | return ret; | |
696 | } | |
697 | msleep(20); | |
698 | ||
699 | /* set the embedded Ethernet PHY in power-up state */ | |
700 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
701 | if (ret < 0) { | |
702 | netdev_err(dev->net, "Failed to reset PHY: %d\n", ret); | |
703 | return ret; | |
704 | } | |
705 | msleep(600); | |
706 | ||
707 | /* set the embedded Ethernet PHY in reset state */ | |
708 | ret = sr_sw_reset(dev, SR_SWRESET_CLEAR); | |
709 | if (ret < 0) { | |
710 | netdev_err(dev->net, "Failed to power up PHY: %d\n", ret); | |
711 | return ret; | |
712 | } | |
713 | msleep(20); | |
714 | ||
715 | /* set the embedded Ethernet PHY in power-up state */ | |
716 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
717 | if (ret < 0) { | |
718 | netdev_err(dev->net, "Failed to reset PHY: %d\n", ret); | |
719 | return ret; | |
720 | } | |
721 | ||
722 | return 0; | |
723 | } | |
724 | ||
725 | static int sr9800_bind(struct usbnet *dev, struct usb_interface *intf) | |
726 | { | |
727 | struct sr_data *data = (struct sr_data *)&dev->data; | |
728 | u16 led01_mux, led23_mux; | |
729 | int ret, embd_phy; | |
730 | u32 phyid; | |
731 | u16 rx_ctl; | |
732 | ||
733 | data->eeprom_len = SR9800_EEPROM_LEN; | |
734 | ||
735 | usbnet_get_endpoints(dev, intf); | |
736 | ||
737 | /* LED Setting Rule : | |
738 | * AABB:CCDD | |
739 | * AA : MFA0(LED0) | |
740 | * BB : MFA1(LED1) | |
741 | * CC : MFA2(LED2), Reserved for SR9800 | |
742 | * DD : MFA3(LED3), Reserved for SR9800 | |
743 | */ | |
744 | led01_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_LINK; | |
745 | led23_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_TX_ACTIVE; | |
746 | ret = sr_write_cmd(dev, SR_CMD_LED_MUX, led01_mux, led23_mux, 0, NULL); | |
747 | if (ret < 0) { | |
748 | netdev_err(dev->net, "set LINK LED failed : %d\n", ret); | |
749 | goto out; | |
750 | } | |
751 | ||
752 | /* Get the MAC address */ | |
753 | ret = sr_read_cmd(dev, SR_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, | |
754 | dev->net->dev_addr); | |
755 | if (ret < 0) { | |
756 | netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); | |
757 | return ret; | |
758 | } | |
759 | netdev_dbg(dev->net, "mac addr : %pM\n", dev->net->dev_addr); | |
760 | ||
761 | /* Initialize MII structure */ | |
762 | dev->mii.dev = dev->net; | |
763 | dev->mii.mdio_read = sr_mdio_read; | |
764 | dev->mii.mdio_write = sr_mdio_write; | |
765 | dev->mii.phy_id_mask = 0x1f; | |
766 | dev->mii.reg_num_mask = 0x1f; | |
767 | dev->mii.phy_id = sr_get_phy_addr(dev); | |
768 | ||
769 | dev->net->netdev_ops = &sr9800_netdev_ops; | |
770 | dev->net->ethtool_ops = &sr9800_ethtool_ops; | |
771 | ||
772 | embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0); | |
773 | /* Reset the PHY to normal operation mode */ | |
774 | ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL); | |
775 | if (ret < 0) { | |
776 | netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); | |
777 | return ret; | |
778 | } | |
779 | ||
780 | /* Init PHY routine */ | |
781 | ret = sr9800_phy_powerup(dev); | |
782 | if (ret < 0) | |
783 | goto out; | |
784 | ||
785 | rx_ctl = sr_read_rx_ctl(dev); | |
786 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl); | |
787 | ret = sr_write_rx_ctl(dev, 0x0000); | |
788 | if (ret < 0) | |
789 | goto out; | |
790 | ||
791 | rx_ctl = sr_read_rx_ctl(dev); | |
792 | netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); | |
793 | ||
794 | /* Read PHYID register *AFTER* the PHY was reset properly */ | |
795 | phyid = sr_get_phyid(dev); | |
796 | netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid); | |
797 | ||
798 | /* medium mode setting */ | |
799 | ret = sr9800_set_default_mode(dev); | |
800 | if (ret < 0) | |
801 | goto out; | |
802 | ||
803 | if (dev->udev->speed == USB_SPEED_HIGH) { | |
804 | ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE, | |
805 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].byte_cnt, | |
806 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].threshold, | |
807 | 0, NULL); | |
808 | if (ret < 0) { | |
809 | netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret); | |
810 | goto out; | |
811 | } | |
812 | dev->rx_urb_size = | |
813 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].size; | |
814 | } else { | |
815 | ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE, | |
816 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].byte_cnt, | |
817 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].threshold, | |
818 | 0, NULL); | |
819 | if (ret < 0) { | |
820 | netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret); | |
821 | goto out; | |
822 | } | |
823 | dev->rx_urb_size = | |
824 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].size; | |
825 | } | |
826 | netdev_dbg(dev->net, "%s : setting rx_urb_size with : %ld\n", __func__, | |
827 | dev->rx_urb_size); | |
828 | return 0; | |
829 | ||
830 | out: | |
831 | return ret; | |
832 | } | |
833 | ||
834 | static const struct driver_info sr9800_driver_info = { | |
835 | .description = "CoreChip SR9800 USB 2.0 Ethernet", | |
836 | .bind = sr9800_bind, | |
837 | .status = sr_status, | |
838 | .link_reset = sr9800_link_reset, | |
839 | .reset = sr9800_reset, | |
840 | .flags = DRIVER_FLAG, | |
841 | .rx_fixup = sr_rx_fixup, | |
842 | .tx_fixup = sr_tx_fixup, | |
843 | }; | |
844 | ||
845 | static const struct usb_device_id products[] = { | |
846 | { | |
847 | USB_DEVICE(0x0fe6, 0x9800), /* SR9800 Device */ | |
848 | .driver_info = (unsigned long) &sr9800_driver_info, | |
849 | }, | |
850 | {}, /* END */ | |
851 | }; | |
852 | ||
853 | MODULE_DEVICE_TABLE(usb, products); | |
854 | ||
855 | static struct usb_driver sr_driver = { | |
856 | .name = DRIVER_NAME, | |
857 | .id_table = products, | |
858 | .probe = usbnet_probe, | |
859 | .suspend = usbnet_suspend, | |
860 | .resume = usbnet_resume, | |
861 | .disconnect = usbnet_disconnect, | |
862 | .supports_autosuspend = 1, | |
863 | }; | |
864 | ||
865 | module_usb_driver(sr_driver); | |
866 | ||
867 | MODULE_AUTHOR("Liu Junliang <liujunliang_ljl@163.com"); | |
868 | MODULE_VERSION(DRIVER_VERSION); | |
869 | MODULE_DESCRIPTION("SR9800 USB 2.0 USB2NET Dev : http://www.corechip-sz.com"); | |
870 | MODULE_LICENSE("GPL"); |