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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 | ||
eb85569f EG |
66 | /* This check is no longer done by usbnet */ |
67 | if (skb->len < dev->net->hard_header_len) | |
68 | return 0; | |
69 | ||
19a38d8e LJ |
70 | while (offset + sizeof(u32) < skb->len) { |
71 | struct sk_buff *sr_skb; | |
72 | u16 size; | |
73 | u32 header = get_unaligned_le32(skb->data + offset); | |
74 | ||
75 | offset += sizeof(u32); | |
76 | /* get the packet length */ | |
77 | size = (u16) (header & 0x7ff); | |
78 | if (size != ((~header >> 16) & 0x07ff)) { | |
79 | netdev_err(dev->net, "%s : Bad Header Length\n", | |
80 | __func__); | |
81 | return 0; | |
82 | } | |
83 | ||
84 | if ((size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) || | |
85 | (size + offset > skb->len)) { | |
86 | netdev_err(dev->net, "%s : Bad RX Length %d\n", | |
87 | __func__, size); | |
88 | return 0; | |
89 | } | |
90 | sr_skb = netdev_alloc_skb_ip_align(dev->net, size); | |
91 | if (!sr_skb) | |
92 | return 0; | |
93 | ||
94 | skb_put(sr_skb, size); | |
95 | memcpy(sr_skb->data, skb->data + offset, size); | |
96 | usbnet_skb_return(dev, sr_skb); | |
97 | ||
98 | offset += (size + 1) & 0xfffe; | |
99 | } | |
100 | ||
101 | if (skb->len != offset) { | |
102 | netdev_err(dev->net, "%s : Bad SKB Length %d\n", __func__, | |
103 | skb->len); | |
104 | return 0; | |
105 | } | |
106 | ||
107 | return 1; | |
108 | } | |
109 | ||
110 | static struct sk_buff *sr_tx_fixup(struct usbnet *dev, struct sk_buff *skb, | |
111 | gfp_t flags) | |
112 | { | |
113 | int headroom = skb_headroom(skb); | |
114 | int tailroom = skb_tailroom(skb); | |
115 | u32 padbytes = 0xffff0000; | |
116 | u32 packet_len; | |
117 | int padlen; | |
118 | ||
119 | padlen = ((skb->len + 4) % (dev->maxpacket - 1)) ? 0 : 4; | |
120 | ||
121 | if ((!skb_cloned(skb)) && ((headroom + tailroom) >= (4 + padlen))) { | |
122 | if ((headroom < 4) || (tailroom < padlen)) { | |
123 | skb->data = memmove(skb->head + 4, skb->data, | |
124 | skb->len); | |
125 | skb_set_tail_pointer(skb, skb->len); | |
126 | } | |
127 | } else { | |
128 | struct sk_buff *skb2; | |
129 | skb2 = skb_copy_expand(skb, 4, padlen, flags); | |
130 | dev_kfree_skb_any(skb); | |
131 | skb = skb2; | |
132 | if (!skb) | |
133 | return NULL; | |
134 | } | |
135 | ||
136 | skb_push(skb, 4); | |
137 | packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); | |
138 | cpu_to_le32s(&packet_len); | |
139 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); | |
140 | ||
141 | if (padlen) { | |
142 | cpu_to_le32s(&padbytes); | |
143 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); | |
144 | skb_put(skb, sizeof(padbytes)); | |
145 | } | |
146 | ||
147 | return skb; | |
148 | } | |
149 | ||
150 | static void sr_status(struct usbnet *dev, struct urb *urb) | |
151 | { | |
152 | struct sr9800_int_data *event; | |
153 | int link; | |
154 | ||
155 | if (urb->actual_length < 8) | |
156 | return; | |
157 | ||
158 | event = urb->transfer_buffer; | |
159 | link = event->link & 0x01; | |
160 | if (netif_carrier_ok(dev->net) != link) { | |
161 | usbnet_link_change(dev, link, 1); | |
162 | netdev_dbg(dev->net, "Link Status is: %d\n", link); | |
163 | } | |
164 | ||
165 | return; | |
166 | } | |
167 | ||
168 | static inline int sr_set_sw_mii(struct usbnet *dev) | |
169 | { | |
170 | int ret; | |
171 | ||
172 | ret = sr_write_cmd(dev, SR_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); | |
173 | if (ret < 0) | |
174 | netdev_err(dev->net, "Failed to enable software MII access\n"); | |
175 | return ret; | |
176 | } | |
177 | ||
178 | static inline int sr_set_hw_mii(struct usbnet *dev) | |
179 | { | |
180 | int ret; | |
181 | ||
182 | ret = sr_write_cmd(dev, SR_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); | |
183 | if (ret < 0) | |
184 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); | |
185 | return ret; | |
186 | } | |
187 | ||
188 | static inline int sr_get_phy_addr(struct usbnet *dev) | |
189 | { | |
190 | u8 buf[2]; | |
191 | int ret; | |
192 | ||
193 | ret = sr_read_cmd(dev, SR_CMD_READ_PHY_ID, 0, 0, 2, buf); | |
194 | if (ret < 0) { | |
195 | netdev_err(dev->net, "%s : Error reading PHYID register:%02x\n", | |
196 | __func__, ret); | |
197 | goto out; | |
198 | } | |
199 | netdev_dbg(dev->net, "%s : returning 0x%04x\n", __func__, | |
200 | *((__le16 *)buf)); | |
201 | ||
202 | ret = buf[1]; | |
203 | ||
204 | out: | |
205 | return ret; | |
206 | } | |
207 | ||
208 | static int sr_sw_reset(struct usbnet *dev, u8 flags) | |
209 | { | |
210 | int ret; | |
211 | ||
212 | ret = sr_write_cmd(dev, SR_CMD_SW_RESET, flags, 0, 0, NULL); | |
213 | if (ret < 0) | |
214 | netdev_err(dev->net, "Failed to send software reset:%02x\n", | |
215 | ret); | |
216 | ||
217 | return ret; | |
218 | } | |
219 | ||
220 | static u16 sr_read_rx_ctl(struct usbnet *dev) | |
221 | { | |
222 | __le16 v; | |
223 | int ret; | |
224 | ||
225 | ret = sr_read_cmd(dev, SR_CMD_READ_RX_CTL, 0, 0, 2, &v); | |
226 | if (ret < 0) { | |
227 | netdev_err(dev->net, "Error reading RX_CTL register:%02x\n", | |
228 | ret); | |
229 | goto out; | |
230 | } | |
231 | ||
232 | ret = le16_to_cpu(v); | |
233 | out: | |
234 | return ret; | |
235 | } | |
236 | ||
237 | static int sr_write_rx_ctl(struct usbnet *dev, u16 mode) | |
238 | { | |
239 | int ret; | |
240 | ||
241 | netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode); | |
242 | ret = sr_write_cmd(dev, SR_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); | |
243 | if (ret < 0) | |
244 | netdev_err(dev->net, | |
245 | "Failed to write RX_CTL mode to 0x%04x:%02x\n", | |
246 | mode, ret); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static u16 sr_read_medium_status(struct usbnet *dev) | |
252 | { | |
253 | __le16 v; | |
254 | int ret; | |
255 | ||
256 | ret = sr_read_cmd(dev, SR_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v); | |
257 | if (ret < 0) { | |
258 | netdev_err(dev->net, | |
259 | "Error reading Medium Status register:%02x\n", ret); | |
260 | return ret; /* TODO: callers not checking for error ret */ | |
261 | } | |
262 | ||
263 | return le16_to_cpu(v); | |
264 | } | |
265 | ||
266 | static int sr_write_medium_mode(struct usbnet *dev, u16 mode) | |
267 | { | |
268 | int ret; | |
269 | ||
270 | netdev_dbg(dev->net, "%s : mode = 0x%04x\n", __func__, mode); | |
271 | ret = sr_write_cmd(dev, SR_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); | |
272 | if (ret < 0) | |
273 | netdev_err(dev->net, | |
274 | "Failed to write Medium Mode mode to 0x%04x:%02x\n", | |
275 | mode, ret); | |
276 | return ret; | |
277 | } | |
278 | ||
279 | static int sr_write_gpio(struct usbnet *dev, u16 value, int sleep) | |
280 | { | |
281 | int ret; | |
282 | ||
283 | netdev_dbg(dev->net, "%s : value = 0x%04x\n", __func__, value); | |
284 | ret = sr_write_cmd(dev, SR_CMD_WRITE_GPIOS, value, 0, 0, NULL); | |
285 | if (ret < 0) | |
286 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x:%02x\n", | |
287 | value, ret); | |
288 | if (sleep) | |
289 | msleep(sleep); | |
290 | ||
291 | return ret; | |
292 | } | |
293 | ||
294 | /* SR9800 have a 16-bit RX_CTL value */ | |
295 | static void sr_set_multicast(struct net_device *net) | |
296 | { | |
297 | struct usbnet *dev = netdev_priv(net); | |
298 | struct sr_data *data = (struct sr_data *)&dev->data; | |
299 | u16 rx_ctl = SR_DEFAULT_RX_CTL; | |
300 | ||
301 | if (net->flags & IFF_PROMISC) { | |
302 | rx_ctl |= SR_RX_CTL_PRO; | |
303 | } else if (net->flags & IFF_ALLMULTI || | |
304 | netdev_mc_count(net) > SR_MAX_MCAST) { | |
305 | rx_ctl |= SR_RX_CTL_AMALL; | |
306 | } else if (netdev_mc_empty(net)) { | |
307 | /* just broadcast and directed */ | |
308 | } else { | |
309 | /* We use the 20 byte dev->data | |
310 | * for our 8 byte filter buffer | |
311 | * to avoid allocating memory that | |
312 | * is tricky to free later | |
313 | */ | |
314 | struct netdev_hw_addr *ha; | |
315 | u32 crc_bits; | |
316 | ||
317 | memset(data->multi_filter, 0, SR_MCAST_FILTER_SIZE); | |
318 | ||
319 | /* Build the multicast hash filter. */ | |
320 | netdev_for_each_mc_addr(ha, net) { | |
321 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
322 | data->multi_filter[crc_bits >> 3] |= | |
323 | 1 << (crc_bits & 7); | |
324 | } | |
325 | ||
326 | sr_write_cmd_async(dev, SR_CMD_WRITE_MULTI_FILTER, 0, 0, | |
327 | SR_MCAST_FILTER_SIZE, data->multi_filter); | |
328 | ||
329 | rx_ctl |= SR_RX_CTL_AM; | |
330 | } | |
331 | ||
332 | sr_write_cmd_async(dev, SR_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); | |
333 | } | |
334 | ||
335 | static int sr_mdio_read(struct net_device *net, int phy_id, int loc) | |
336 | { | |
337 | struct usbnet *dev = netdev_priv(net); | |
338 | __le16 res; | |
339 | ||
340 | mutex_lock(&dev->phy_mutex); | |
341 | sr_set_sw_mii(dev); | |
342 | sr_read_cmd(dev, SR_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, &res); | |
343 | sr_set_hw_mii(dev); | |
344 | mutex_unlock(&dev->phy_mutex); | |
345 | ||
346 | netdev_dbg(dev->net, | |
347 | "%s : phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", __func__, | |
348 | phy_id, loc, le16_to_cpu(res)); | |
349 | ||
350 | return le16_to_cpu(res); | |
351 | } | |
352 | ||
353 | static void | |
354 | sr_mdio_write(struct net_device *net, int phy_id, int loc, int val) | |
355 | { | |
356 | struct usbnet *dev = netdev_priv(net); | |
357 | __le16 res = cpu_to_le16(val); | |
358 | ||
359 | netdev_dbg(dev->net, | |
360 | "%s : phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", __func__, | |
361 | phy_id, loc, val); | |
362 | mutex_lock(&dev->phy_mutex); | |
363 | sr_set_sw_mii(dev); | |
364 | sr_write_cmd(dev, SR_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res); | |
365 | sr_set_hw_mii(dev); | |
366 | mutex_unlock(&dev->phy_mutex); | |
367 | } | |
368 | ||
369 | /* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */ | |
370 | static u32 sr_get_phyid(struct usbnet *dev) | |
371 | { | |
372 | int phy_reg; | |
373 | u32 phy_id; | |
374 | int i; | |
375 | ||
376 | /* Poll for the rare case the FW or phy isn't ready yet. */ | |
377 | for (i = 0; i < 100; i++) { | |
378 | phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1); | |
379 | if (phy_reg != 0 && phy_reg != 0xFFFF) | |
380 | break; | |
381 | mdelay(1); | |
382 | } | |
383 | ||
384 | if (phy_reg <= 0 || phy_reg == 0xFFFF) | |
385 | return 0; | |
386 | ||
387 | phy_id = (phy_reg & 0xffff) << 16; | |
388 | ||
389 | phy_reg = sr_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2); | |
390 | if (phy_reg < 0) | |
391 | return 0; | |
392 | ||
393 | phy_id |= (phy_reg & 0xffff); | |
394 | ||
395 | return phy_id; | |
396 | } | |
397 | ||
398 | static void | |
399 | sr_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) | |
400 | { | |
401 | struct usbnet *dev = netdev_priv(net); | |
402 | u8 opt; | |
403 | ||
404 | if (sr_read_cmd(dev, SR_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { | |
405 | wolinfo->supported = 0; | |
406 | wolinfo->wolopts = 0; | |
407 | return; | |
408 | } | |
409 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
410 | wolinfo->wolopts = 0; | |
411 | if (opt & SR_MONITOR_LINK) | |
412 | wolinfo->wolopts |= WAKE_PHY; | |
413 | if (opt & SR_MONITOR_MAGIC) | |
414 | wolinfo->wolopts |= WAKE_MAGIC; | |
415 | } | |
416 | ||
417 | static int | |
418 | sr_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) | |
419 | { | |
420 | struct usbnet *dev = netdev_priv(net); | |
421 | u8 opt = 0; | |
422 | ||
423 | if (wolinfo->wolopts & WAKE_PHY) | |
424 | opt |= SR_MONITOR_LINK; | |
425 | if (wolinfo->wolopts & WAKE_MAGIC) | |
426 | opt |= SR_MONITOR_MAGIC; | |
427 | ||
428 | if (sr_write_cmd(dev, SR_CMD_WRITE_MONITOR_MODE, | |
429 | opt, 0, 0, NULL) < 0) | |
430 | return -EINVAL; | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static int sr_get_eeprom_len(struct net_device *net) | |
436 | { | |
437 | struct usbnet *dev = netdev_priv(net); | |
438 | struct sr_data *data = (struct sr_data *)&dev->data; | |
439 | ||
440 | return data->eeprom_len; | |
441 | } | |
442 | ||
443 | static int sr_get_eeprom(struct net_device *net, | |
444 | struct ethtool_eeprom *eeprom, u8 *data) | |
445 | { | |
446 | struct usbnet *dev = netdev_priv(net); | |
447 | __le16 *ebuf = (__le16 *)data; | |
448 | int ret; | |
449 | int i; | |
450 | ||
451 | /* Crude hack to ensure that we don't overwrite memory | |
452 | * if an odd length is supplied | |
453 | */ | |
454 | if (eeprom->len % 2) | |
455 | return -EINVAL; | |
456 | ||
457 | eeprom->magic = SR_EEPROM_MAGIC; | |
458 | ||
459 | /* sr9800 returns 2 bytes from eeprom on read */ | |
460 | for (i = 0; i < eeprom->len / 2; i++) { | |
461 | ret = sr_read_cmd(dev, SR_CMD_READ_EEPROM, eeprom->offset + i, | |
462 | 0, 2, &ebuf[i]); | |
463 | if (ret < 0) | |
464 | return -EINVAL; | |
465 | } | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static void sr_get_drvinfo(struct net_device *net, | |
470 | struct ethtool_drvinfo *info) | |
471 | { | |
472 | struct usbnet *dev = netdev_priv(net); | |
473 | struct sr_data *data = (struct sr_data *)&dev->data; | |
474 | ||
475 | /* Inherit standard device info */ | |
476 | usbnet_get_drvinfo(net, info); | |
477 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); | |
478 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
479 | info->eedump_len = data->eeprom_len; | |
480 | } | |
481 | ||
482 | static u32 sr_get_link(struct net_device *net) | |
483 | { | |
484 | struct usbnet *dev = netdev_priv(net); | |
485 | ||
486 | return mii_link_ok(&dev->mii); | |
487 | } | |
488 | ||
489 | static int sr_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
490 | { | |
491 | struct usbnet *dev = netdev_priv(net); | |
492 | ||
493 | return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); | |
494 | } | |
495 | ||
496 | static int sr_set_mac_address(struct net_device *net, void *p) | |
497 | { | |
498 | struct usbnet *dev = netdev_priv(net); | |
499 | struct sr_data *data = (struct sr_data *)&dev->data; | |
500 | struct sockaddr *addr = p; | |
501 | ||
502 | if (netif_running(net)) | |
503 | return -EBUSY; | |
504 | if (!is_valid_ether_addr(addr->sa_data)) | |
505 | return -EADDRNOTAVAIL; | |
506 | ||
507 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
508 | ||
509 | /* We use the 20 byte dev->data | |
510 | * for our 6 byte mac buffer | |
511 | * to avoid allocating memory that | |
512 | * is tricky to free later | |
513 | */ | |
514 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
515 | sr_write_cmd_async(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
516 | data->mac_addr); | |
517 | ||
518 | return 0; | |
519 | } | |
520 | ||
521 | static const struct ethtool_ops sr9800_ethtool_ops = { | |
522 | .get_drvinfo = sr_get_drvinfo, | |
523 | .get_link = sr_get_link, | |
524 | .get_msglevel = usbnet_get_msglevel, | |
525 | .set_msglevel = usbnet_set_msglevel, | |
526 | .get_wol = sr_get_wol, | |
527 | .set_wol = sr_set_wol, | |
528 | .get_eeprom_len = sr_get_eeprom_len, | |
529 | .get_eeprom = sr_get_eeprom, | |
530 | .get_settings = usbnet_get_settings, | |
531 | .set_settings = usbnet_set_settings, | |
532 | .nway_reset = usbnet_nway_reset, | |
533 | }; | |
534 | ||
535 | static int sr9800_link_reset(struct usbnet *dev) | |
536 | { | |
537 | struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; | |
538 | u16 mode; | |
539 | ||
540 | mii_check_media(&dev->mii, 1, 1); | |
541 | mii_ethtool_gset(&dev->mii, &ecmd); | |
542 | mode = SR9800_MEDIUM_DEFAULT; | |
543 | ||
544 | if (ethtool_cmd_speed(&ecmd) != SPEED_100) | |
545 | mode &= ~SR_MEDIUM_PS; | |
546 | ||
547 | if (ecmd.duplex != DUPLEX_FULL) | |
548 | mode &= ~SR_MEDIUM_FD; | |
549 | ||
550 | netdev_dbg(dev->net, "%s : speed: %u duplex: %d mode: 0x%04x\n", | |
551 | __func__, ethtool_cmd_speed(&ecmd), ecmd.duplex, mode); | |
552 | ||
553 | sr_write_medium_mode(dev, mode); | |
554 | ||
555 | return 0; | |
556 | } | |
557 | ||
558 | ||
559 | static int sr9800_set_default_mode(struct usbnet *dev) | |
560 | { | |
561 | u16 rx_ctl; | |
562 | int ret; | |
563 | ||
564 | sr_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); | |
565 | sr_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, | |
566 | ADVERTISE_ALL | ADVERTISE_CSMA); | |
567 | mii_nway_restart(&dev->mii); | |
568 | ||
569 | ret = sr_write_medium_mode(dev, SR9800_MEDIUM_DEFAULT); | |
570 | if (ret < 0) | |
571 | goto out; | |
572 | ||
573 | ret = sr_write_cmd(dev, SR_CMD_WRITE_IPG012, | |
574 | SR9800_IPG0_DEFAULT | SR9800_IPG1_DEFAULT, | |
575 | SR9800_IPG2_DEFAULT, 0, NULL); | |
576 | if (ret < 0) { | |
577 | netdev_dbg(dev->net, "Write IPG,IPG1,IPG2 failed: %d\n", ret); | |
578 | goto out; | |
579 | } | |
580 | ||
581 | /* Set RX_CTL to default values with 2k buffer, and enable cactus */ | |
582 | ret = sr_write_rx_ctl(dev, SR_DEFAULT_RX_CTL); | |
583 | if (ret < 0) | |
584 | goto out; | |
585 | ||
586 | rx_ctl = sr_read_rx_ctl(dev); | |
587 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after all initializations\n", | |
588 | rx_ctl); | |
589 | ||
590 | rx_ctl = sr_read_medium_status(dev); | |
591 | netdev_dbg(dev->net, "Medium Status:0x%04x after all initializations\n", | |
592 | rx_ctl); | |
593 | ||
594 | return 0; | |
595 | out: | |
596 | return ret; | |
597 | } | |
598 | ||
599 | static int sr9800_reset(struct usbnet *dev) | |
600 | { | |
601 | struct sr_data *data = (struct sr_data *)&dev->data; | |
602 | int ret, embd_phy; | |
603 | u16 rx_ctl; | |
604 | ||
605 | ret = sr_write_gpio(dev, | |
606 | SR_GPIO_RSE | SR_GPIO_GPO_2 | SR_GPIO_GPO2EN, 5); | |
607 | if (ret < 0) | |
608 | goto out; | |
609 | ||
610 | embd_phy = ((sr_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0); | |
611 | ||
612 | ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL); | |
613 | if (ret < 0) { | |
614 | netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); | |
615 | goto out; | |
616 | } | |
617 | ||
618 | ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_PRL); | |
619 | if (ret < 0) | |
620 | goto out; | |
621 | ||
622 | msleep(150); | |
623 | ||
624 | ret = sr_sw_reset(dev, SR_SWRESET_CLEAR); | |
625 | if (ret < 0) | |
626 | goto out; | |
627 | ||
628 | msleep(150); | |
629 | ||
630 | if (embd_phy) { | |
631 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
632 | if (ret < 0) | |
633 | goto out; | |
634 | } else { | |
635 | ret = sr_sw_reset(dev, SR_SWRESET_PRTE); | |
636 | if (ret < 0) | |
637 | goto out; | |
638 | } | |
639 | ||
640 | msleep(150); | |
641 | rx_ctl = sr_read_rx_ctl(dev); | |
642 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl); | |
643 | ret = sr_write_rx_ctl(dev, 0x0000); | |
644 | if (ret < 0) | |
645 | goto out; | |
646 | ||
647 | rx_ctl = sr_read_rx_ctl(dev); | |
648 | netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); | |
649 | ||
650 | ret = sr_sw_reset(dev, SR_SWRESET_PRL); | |
651 | if (ret < 0) | |
652 | goto out; | |
653 | ||
654 | msleep(150); | |
655 | ||
656 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL | SR_SWRESET_PRL); | |
657 | if (ret < 0) | |
658 | goto out; | |
659 | ||
660 | msleep(150); | |
661 | ||
662 | ret = sr9800_set_default_mode(dev); | |
663 | if (ret < 0) | |
664 | goto out; | |
665 | ||
666 | /* Rewrite MAC address */ | |
667 | memcpy(data->mac_addr, dev->net->dev_addr, ETH_ALEN); | |
668 | ret = sr_write_cmd(dev, SR_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
669 | data->mac_addr); | |
670 | if (ret < 0) | |
671 | goto out; | |
672 | ||
673 | return 0; | |
674 | ||
675 | out: | |
676 | return ret; | |
677 | } | |
678 | ||
679 | static const struct net_device_ops sr9800_netdev_ops = { | |
680 | .ndo_open = usbnet_open, | |
681 | .ndo_stop = usbnet_stop, | |
682 | .ndo_start_xmit = usbnet_start_xmit, | |
683 | .ndo_tx_timeout = usbnet_tx_timeout, | |
684 | .ndo_change_mtu = usbnet_change_mtu, | |
685 | .ndo_set_mac_address = sr_set_mac_address, | |
686 | .ndo_validate_addr = eth_validate_addr, | |
687 | .ndo_do_ioctl = sr_ioctl, | |
688 | .ndo_set_rx_mode = sr_set_multicast, | |
689 | }; | |
690 | ||
691 | static int sr9800_phy_powerup(struct usbnet *dev) | |
692 | { | |
693 | int ret; | |
694 | ||
695 | /* set the embedded Ethernet PHY in power-down state */ | |
696 | ret = sr_sw_reset(dev, SR_SWRESET_IPPD | SR_SWRESET_IPRL); | |
697 | if (ret < 0) { | |
698 | netdev_err(dev->net, "Failed to power down PHY : %d\n", ret); | |
699 | return ret; | |
700 | } | |
701 | msleep(20); | |
702 | ||
703 | /* set the embedded Ethernet PHY in power-up state */ | |
704 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
705 | if (ret < 0) { | |
706 | netdev_err(dev->net, "Failed to reset PHY: %d\n", ret); | |
707 | return ret; | |
708 | } | |
709 | msleep(600); | |
710 | ||
711 | /* set the embedded Ethernet PHY in reset state */ | |
712 | ret = sr_sw_reset(dev, SR_SWRESET_CLEAR); | |
713 | if (ret < 0) { | |
714 | netdev_err(dev->net, "Failed to power up PHY: %d\n", ret); | |
715 | return ret; | |
716 | } | |
717 | msleep(20); | |
718 | ||
719 | /* set the embedded Ethernet PHY in power-up state */ | |
720 | ret = sr_sw_reset(dev, SR_SWRESET_IPRL); | |
721 | if (ret < 0) { | |
722 | netdev_err(dev->net, "Failed to reset PHY: %d\n", ret); | |
723 | return ret; | |
724 | } | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
729 | static int sr9800_bind(struct usbnet *dev, struct usb_interface *intf) | |
730 | { | |
731 | struct sr_data *data = (struct sr_data *)&dev->data; | |
732 | u16 led01_mux, led23_mux; | |
733 | int ret, embd_phy; | |
734 | u32 phyid; | |
735 | u16 rx_ctl; | |
736 | ||
737 | data->eeprom_len = SR9800_EEPROM_LEN; | |
738 | ||
739 | usbnet_get_endpoints(dev, intf); | |
740 | ||
741 | /* LED Setting Rule : | |
742 | * AABB:CCDD | |
743 | * AA : MFA0(LED0) | |
744 | * BB : MFA1(LED1) | |
745 | * CC : MFA2(LED2), Reserved for SR9800 | |
746 | * DD : MFA3(LED3), Reserved for SR9800 | |
747 | */ | |
748 | led01_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_LINK; | |
749 | led23_mux = (SR_LED_MUX_LINK_ACTIVE << 8) | SR_LED_MUX_TX_ACTIVE; | |
750 | ret = sr_write_cmd(dev, SR_CMD_LED_MUX, led01_mux, led23_mux, 0, NULL); | |
751 | if (ret < 0) { | |
752 | netdev_err(dev->net, "set LINK LED failed : %d\n", ret); | |
753 | goto out; | |
754 | } | |
755 | ||
756 | /* Get the MAC address */ | |
757 | ret = sr_read_cmd(dev, SR_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, | |
758 | dev->net->dev_addr); | |
759 | if (ret < 0) { | |
760 | netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret); | |
761 | return ret; | |
762 | } | |
763 | netdev_dbg(dev->net, "mac addr : %pM\n", dev->net->dev_addr); | |
764 | ||
765 | /* Initialize MII structure */ | |
766 | dev->mii.dev = dev->net; | |
767 | dev->mii.mdio_read = sr_mdio_read; | |
768 | dev->mii.mdio_write = sr_mdio_write; | |
769 | dev->mii.phy_id_mask = 0x1f; | |
770 | dev->mii.reg_num_mask = 0x1f; | |
771 | dev->mii.phy_id = sr_get_phy_addr(dev); | |
772 | ||
773 | dev->net->netdev_ops = &sr9800_netdev_ops; | |
774 | dev->net->ethtool_ops = &sr9800_ethtool_ops; | |
775 | ||
776 | embd_phy = ((dev->mii.phy_id & 0x1f) == 0x10 ? 1 : 0); | |
777 | /* Reset the PHY to normal operation mode */ | |
778 | ret = sr_write_cmd(dev, SR_CMD_SW_PHY_SELECT, embd_phy, 0, 0, NULL); | |
779 | if (ret < 0) { | |
780 | netdev_dbg(dev->net, "Select PHY #1 failed: %d\n", ret); | |
781 | return ret; | |
782 | } | |
783 | ||
784 | /* Init PHY routine */ | |
785 | ret = sr9800_phy_powerup(dev); | |
786 | if (ret < 0) | |
787 | goto out; | |
788 | ||
789 | rx_ctl = sr_read_rx_ctl(dev); | |
790 | netdev_dbg(dev->net, "RX_CTL is 0x%04x after software reset\n", rx_ctl); | |
791 | ret = sr_write_rx_ctl(dev, 0x0000); | |
792 | if (ret < 0) | |
793 | goto out; | |
794 | ||
795 | rx_ctl = sr_read_rx_ctl(dev); | |
796 | netdev_dbg(dev->net, "RX_CTL is 0x%04x setting to 0x0000\n", rx_ctl); | |
797 | ||
798 | /* Read PHYID register *AFTER* the PHY was reset properly */ | |
799 | phyid = sr_get_phyid(dev); | |
800 | netdev_dbg(dev->net, "PHYID=0x%08x\n", phyid); | |
801 | ||
802 | /* medium mode setting */ | |
803 | ret = sr9800_set_default_mode(dev); | |
804 | if (ret < 0) | |
805 | goto out; | |
806 | ||
807 | if (dev->udev->speed == USB_SPEED_HIGH) { | |
808 | ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE, | |
809 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].byte_cnt, | |
810 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].threshold, | |
811 | 0, NULL); | |
812 | if (ret < 0) { | |
813 | netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret); | |
814 | goto out; | |
815 | } | |
816 | dev->rx_urb_size = | |
817 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_4K].size; | |
818 | } else { | |
819 | ret = sr_write_cmd(dev, SR_CMD_BULKIN_SIZE, | |
820 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].byte_cnt, | |
821 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].threshold, | |
822 | 0, NULL); | |
823 | if (ret < 0) { | |
824 | netdev_err(dev->net, "Reset RX_CTL failed: %d\n", ret); | |
825 | goto out; | |
826 | } | |
827 | dev->rx_urb_size = | |
828 | SR9800_BULKIN_SIZE[SR9800_MAX_BULKIN_2K].size; | |
829 | } | |
6726d971 | 830 | netdev_dbg(dev->net, "%s : setting rx_urb_size with : %zu\n", __func__, |
19a38d8e LJ |
831 | dev->rx_urb_size); |
832 | return 0; | |
833 | ||
834 | out: | |
835 | return ret; | |
836 | } | |
837 | ||
838 | static const struct driver_info sr9800_driver_info = { | |
839 | .description = "CoreChip SR9800 USB 2.0 Ethernet", | |
840 | .bind = sr9800_bind, | |
841 | .status = sr_status, | |
842 | .link_reset = sr9800_link_reset, | |
843 | .reset = sr9800_reset, | |
844 | .flags = DRIVER_FLAG, | |
845 | .rx_fixup = sr_rx_fixup, | |
846 | .tx_fixup = sr_tx_fixup, | |
847 | }; | |
848 | ||
849 | static const struct usb_device_id products[] = { | |
850 | { | |
851 | USB_DEVICE(0x0fe6, 0x9800), /* SR9800 Device */ | |
852 | .driver_info = (unsigned long) &sr9800_driver_info, | |
853 | }, | |
854 | {}, /* END */ | |
855 | }; | |
856 | ||
857 | MODULE_DEVICE_TABLE(usb, products); | |
858 | ||
859 | static struct usb_driver sr_driver = { | |
860 | .name = DRIVER_NAME, | |
861 | .id_table = products, | |
862 | .probe = usbnet_probe, | |
863 | .suspend = usbnet_suspend, | |
864 | .resume = usbnet_resume, | |
865 | .disconnect = usbnet_disconnect, | |
866 | .supports_autosuspend = 1, | |
867 | }; | |
868 | ||
869 | module_usb_driver(sr_driver); | |
870 | ||
871 | MODULE_AUTHOR("Liu Junliang <liujunliang_ljl@163.com"); | |
872 | MODULE_VERSION(DRIVER_VERSION); | |
873 | MODULE_DESCRIPTION("SR9800 USB 2.0 USB2NET Dev : http://www.corechip-sz.com"); | |
874 | MODULE_LICENSE("GPL"); |