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Commit | Line | Data |
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2e55cc72 DB |
1 | /* |
2 | * ASIX AX8817X based USB 2.0 Ethernet Devices | |
933a27d3 | 3 | * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com> |
2e55cc72 | 4 | * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> |
933a27d3 | 5 | * Copyright (C) 2006 James Painter <jamie.painter@iname.com> |
2e55cc72 DB |
6 | * Copyright (c) 2002-2003 TiVo Inc. |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
9cb00073 | 19 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
2e55cc72 DB |
20 | */ |
21 | ||
607740bc CR |
22 | #include "asix.h" |
23 | ||
24 | int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, | |
d9fe64e5 | 25 | u16 size, void *data, int in_pm) |
2e55cc72 | 26 | { |
0bc69efb | 27 | int ret; |
d9fe64e5 RF |
28 | int (*fn)(struct usbnet *, u8, u8, u16, u16, void *, u16); |
29 | ||
30 | BUG_ON(!dev); | |
31 | ||
32 | if (!in_pm) | |
33 | fn = usbnet_read_cmd; | |
34 | else | |
35 | fn = usbnet_read_cmd_nopm; | |
36 | ||
37 | ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
38 | value, index, data, size); | |
39 | ||
40 | if (unlikely(ret < 0)) | |
41 | netdev_warn(dev->net, "Failed to read reg index 0x%04x: %d\n", | |
42 | index, ret); | |
0bc69efb | 43 | |
0bc69efb | 44 | return ret; |
2e55cc72 DB |
45 | } |
46 | ||
607740bc | 47 | int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
d9fe64e5 | 48 | u16 size, void *data, int in_pm) |
2e55cc72 | 49 | { |
d9fe64e5 RF |
50 | int ret; |
51 | int (*fn)(struct usbnet *, u8, u8, u16, u16, const void *, u16); | |
52 | ||
53 | BUG_ON(!dev); | |
54 | ||
55 | if (!in_pm) | |
56 | fn = usbnet_write_cmd; | |
57 | else | |
58 | fn = usbnet_write_cmd_nopm; | |
59 | ||
60 | ret = fn(dev, cmd, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
61 | value, index, data, size); | |
62 | ||
63 | if (unlikely(ret < 0)) | |
64 | netdev_warn(dev->net, "Failed to write reg index 0x%04x: %d\n", | |
65 | index, ret); | |
66 | ||
67 | return ret; | |
2e55cc72 DB |
68 | } |
69 | ||
607740bc CR |
70 | void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
71 | u16 size, void *data) | |
933a27d3 | 72 | { |
0bc69efb ML |
73 | usbnet_write_cmd_async(dev, cmd, |
74 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
75 | value, index, data, size); | |
933a27d3 DH |
76 | } |
77 | ||
8b5b6f54 LS |
78 | int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb, |
79 | struct asix_rx_fixup_info *rx) | |
933a27d3 | 80 | { |
a9e0aca4 | 81 | int offset = 0; |
7b0378f5 | 82 | u16 size; |
933a27d3 | 83 | |
3f30b158 DJ |
84 | /* When an Ethernet frame spans multiple URB socket buffers, |
85 | * do a sanity test for the Data header synchronisation. | |
86 | * Attempt to detect the situation of the previous socket buffer having | |
87 | * been truncated or a socket buffer was missing. These situations | |
88 | * cause a discontinuity in the data stream and therefore need to avoid | |
89 | * appending bad data to the end of the current netdev socket buffer. | |
90 | * Also avoid unnecessarily discarding a good current netdev socket | |
91 | * buffer. | |
92 | */ | |
93 | if (rx->remaining && (rx->remaining + sizeof(u32) <= skb->len)) { | |
cd9e2e5d | 94 | offset = ((rx->remaining + 1) & 0xfffe); |
3f30b158 DJ |
95 | rx->header = get_unaligned_le32(skb->data + offset); |
96 | offset = 0; | |
97 | ||
98 | size = (u16)(rx->header & 0x7ff); | |
99 | if (size != ((~rx->header >> 16) & 0x7ff)) { | |
100 | netdev_err(dev->net, "asix_rx_fixup() Data Header synchronisation was lost, remaining %d\n", | |
101 | rx->remaining); | |
6a570814 DJ |
102 | if (rx->ax_skb) { |
103 | kfree_skb(rx->ax_skb); | |
104 | rx->ax_skb = NULL; | |
105 | /* Discard the incomplete netdev Ethernet frame | |
106 | * and assume the Data header is at the start of | |
107 | * the current URB socket buffer. | |
108 | */ | |
109 | } | |
3f30b158 DJ |
110 | rx->remaining = 0; |
111 | } | |
112 | } | |
113 | ||
8b5b6f54 | 114 | while (offset + sizeof(u16) <= skb->len) { |
7b0378f5 | 115 | u16 copy_length; |
8b5b6f54 | 116 | unsigned char *data; |
933a27d3 | 117 | |
7b0378f5 | 118 | if (!rx->remaining) { |
3bfc69ab DJ |
119 | if (skb->len - offset == sizeof(u16)) { |
120 | rx->header = get_unaligned_le16( | |
121 | skb->data + offset); | |
122 | rx->split_head = true; | |
123 | offset += sizeof(u16); | |
124 | break; | |
125 | } | |
126 | ||
127 | if (rx->split_head == true) { | |
128 | rx->header |= (get_unaligned_le16( | |
129 | skb->data + offset) << 16); | |
130 | rx->split_head = false; | |
131 | offset += sizeof(u16); | |
8b5b6f54 LS |
132 | } else { |
133 | rx->header = get_unaligned_le32(skb->data + | |
134 | offset); | |
135 | offset += sizeof(u32); | |
136 | } | |
bc466e67 | 137 | |
7b0378f5 DJ |
138 | /* take frame length from Data header 32-bit word */ |
139 | size = (u16)(rx->header & 0x7ff); | |
140 | if (size != ((~rx->header >> 16) & 0x7ff)) { | |
8b5b6f54 LS |
141 | netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n", |
142 | rx->header, offset); | |
8b5b6f54 LS |
143 | return 0; |
144 | } | |
9a5ccd8e | 145 | if (size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { |
b70183db | 146 | netdev_dbg(dev->net, "asix_rx_fixup() Bad RX Length %d\n", |
9a5ccd8e DJ |
147 | size); |
148 | return 0; | |
149 | } | |
150 | ||
6a570814 DJ |
151 | /* Sometimes may fail to get a netdev socket buffer but |
152 | * continue to process the URB socket buffer so that | |
153 | * synchronisation of the Ethernet frame Data header | |
154 | * word is maintained. | |
155 | */ | |
7b0378f5 | 156 | rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size); |
3f78d1f2 | 157 | |
9a5ccd8e | 158 | rx->remaining = size; |
933a27d3 | 159 | } |
933a27d3 | 160 | |
7b0378f5 DJ |
161 | if (rx->remaining > skb->len - offset) { |
162 | copy_length = skb->len - offset; | |
163 | rx->remaining -= copy_length; | |
164 | } else { | |
165 | copy_length = rx->remaining; | |
166 | rx->remaining = 0; | |
8b5b6f54 | 167 | } |
933a27d3 | 168 | |
6a570814 DJ |
169 | if (rx->ax_skb) { |
170 | data = skb_put(rx->ax_skb, copy_length); | |
171 | memcpy(data, skb->data + offset, copy_length); | |
172 | if (!rx->remaining) | |
173 | usbnet_skb_return(dev, rx->ax_skb); | |
174 | } | |
8b5b6f54 | 175 | |
7b0378f5 | 176 | offset += (copy_length + 1) & 0xfffe; |
933a27d3 DH |
177 | } |
178 | ||
a9e0aca4 | 179 | if (skb->len != offset) { |
8b5b6f54 LS |
180 | netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n", |
181 | skb->len, offset); | |
933a27d3 DH |
182 | return 0; |
183 | } | |
8b5b6f54 | 184 | |
933a27d3 DH |
185 | return 1; |
186 | } | |
187 | ||
8b5b6f54 LS |
188 | int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb) |
189 | { | |
190 | struct asix_common_private *dp = dev->driver_priv; | |
191 | struct asix_rx_fixup_info *rx = &dp->rx_fixup_info; | |
192 | ||
193 | return asix_rx_fixup_internal(dev, skb, rx); | |
194 | } | |
195 | ||
607740bc CR |
196 | struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, |
197 | gfp_t flags) | |
933a27d3 DH |
198 | { |
199 | int padlen; | |
200 | int headroom = skb_headroom(skb); | |
201 | int tailroom = skb_tailroom(skb); | |
202 | u32 packet_len; | |
203 | u32 padbytes = 0xffff0000; | |
204 | ||
2a580949 | 205 | padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4; |
933a27d3 | 206 | |
95162d65 ED |
207 | /* We need to push 4 bytes in front of frame (packet_len) |
208 | * and maybe add 4 bytes after the end (if padlen is 4) | |
209 | * | |
210 | * Avoid skb_copy_expand() expensive call, using following rules : | |
211 | * - We are allowed to push 4 bytes in headroom if skb_header_cloned() | |
212 | * is false (and if we have 4 bytes of headroom) | |
213 | * - We are allowed to put 4 bytes at tail if skb_cloned() | |
214 | * is false (and if we have 4 bytes of tailroom) | |
215 | * | |
216 | * TCP packets for example are cloned, but skb_header_release() | |
217 | * was called in tcp stack, allowing us to use headroom for our needs. | |
218 | */ | |
219 | if (!skb_header_cloned(skb) && | |
220 | !(padlen && skb_cloned(skb)) && | |
221 | headroom + tailroom >= 4 + padlen) { | |
222 | /* following should not happen, but better be safe */ | |
223 | if (headroom < 4 || | |
224 | tailroom < padlen) { | |
933a27d3 | 225 | skb->data = memmove(skb->head + 4, skb->data, skb->len); |
27a884dc | 226 | skb_set_tail_pointer(skb, skb->len); |
933a27d3 DH |
227 | } |
228 | } else { | |
229 | struct sk_buff *skb2; | |
95162d65 | 230 | |
933a27d3 DH |
231 | skb2 = skb_copy_expand(skb, 4, padlen, flags); |
232 | dev_kfree_skb_any(skb); | |
233 | skb = skb2; | |
234 | if (!skb) | |
235 | return NULL; | |
236 | } | |
237 | ||
95162d65 | 238 | packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len; |
933a27d3 | 239 | skb_push(skb, 4); |
57e4f041 | 240 | cpu_to_le32s(&packet_len); |
27d7ff46 | 241 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); |
933a27d3 | 242 | |
2a580949 | 243 | if (padlen) { |
57e4f041 | 244 | cpu_to_le32s(&padbytes); |
27a884dc | 245 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); |
933a27d3 DH |
246 | skb_put(skb, sizeof(padbytes)); |
247 | } | |
1e9e39f4 | 248 | |
7a1e890e | 249 | usbnet_set_skb_tx_stats(skb, 1, 0); |
933a27d3 DH |
250 | return skb; |
251 | } | |
252 | ||
d9fe64e5 | 253 | int asix_set_sw_mii(struct usbnet *dev, int in_pm) |
48b1be6a DH |
254 | { |
255 | int ret; | |
d9fe64e5 RF |
256 | ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL, in_pm); |
257 | ||
48b1be6a | 258 | if (ret < 0) |
60b86755 | 259 | netdev_err(dev->net, "Failed to enable software MII access\n"); |
48b1be6a DH |
260 | return ret; |
261 | } | |
262 | ||
d9fe64e5 | 263 | int asix_set_hw_mii(struct usbnet *dev, int in_pm) |
48b1be6a DH |
264 | { |
265 | int ret; | |
d9fe64e5 | 266 | ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL, in_pm); |
48b1be6a | 267 | if (ret < 0) |
60b86755 | 268 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); |
48b1be6a DH |
269 | return ret; |
270 | } | |
271 | ||
16626b0c | 272 | int asix_read_phy_addr(struct usbnet *dev, int internal) |
48b1be6a | 273 | { |
16626b0c | 274 | int offset = (internal ? 1 : 0); |
51bf2976 | 275 | u8 buf[2]; |
d9fe64e5 | 276 | int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf, 0); |
48b1be6a | 277 | |
60b86755 | 278 | netdev_dbg(dev->net, "asix_get_phy_addr()\n"); |
933a27d3 | 279 | |
51bf2976 | 280 | if (ret < 0) { |
60b86755 | 281 | netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); |
51bf2976 | 282 | goto out; |
48b1be6a | 283 | } |
60b86755 JP |
284 | netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n", |
285 | *((__le16 *)buf)); | |
16626b0c | 286 | ret = buf[offset]; |
51bf2976 AV |
287 | |
288 | out: | |
48b1be6a DH |
289 | return ret; |
290 | } | |
291 | ||
16626b0c CR |
292 | int asix_get_phy_addr(struct usbnet *dev) |
293 | { | |
294 | /* return the address of the internal phy */ | |
295 | return asix_read_phy_addr(dev, 1); | |
296 | } | |
297 | ||
298 | ||
d9fe64e5 | 299 | int asix_sw_reset(struct usbnet *dev, u8 flags, int in_pm) |
48b1be6a DH |
300 | { |
301 | int ret; | |
302 | ||
d9fe64e5 | 303 | ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL, in_pm); |
48b1be6a | 304 | if (ret < 0) |
60b86755 | 305 | netdev_err(dev->net, "Failed to send software reset: %02x\n", ret); |
933a27d3 DH |
306 | |
307 | return ret; | |
308 | } | |
48b1be6a | 309 | |
d9fe64e5 | 310 | u16 asix_read_rx_ctl(struct usbnet *dev, int in_pm) |
933a27d3 | 311 | { |
51bf2976 | 312 | __le16 v; |
d9fe64e5 | 313 | int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v, in_pm); |
933a27d3 | 314 | |
51bf2976 | 315 | if (ret < 0) { |
60b86755 | 316 | netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret); |
51bf2976 | 317 | goto out; |
933a27d3 | 318 | } |
51bf2976 AV |
319 | ret = le16_to_cpu(v); |
320 | out: | |
48b1be6a DH |
321 | return ret; |
322 | } | |
323 | ||
d9fe64e5 | 324 | int asix_write_rx_ctl(struct usbnet *dev, u16 mode, int in_pm) |
48b1be6a DH |
325 | { |
326 | int ret; | |
327 | ||
60b86755 | 328 | netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode); |
d9fe64e5 | 329 | ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL, in_pm); |
48b1be6a | 330 | if (ret < 0) |
60b86755 JP |
331 | netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n", |
332 | mode, ret); | |
48b1be6a DH |
333 | |
334 | return ret; | |
335 | } | |
336 | ||
d9fe64e5 | 337 | u16 asix_read_medium_status(struct usbnet *dev, int in_pm) |
2e55cc72 | 338 | { |
51bf2976 | 339 | __le16 v; |
d9fe64e5 RF |
340 | int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, |
341 | 0, 0, 2, &v, in_pm); | |
2e55cc72 | 342 | |
51bf2976 | 343 | if (ret < 0) { |
60b86755 JP |
344 | netdev_err(dev->net, "Error reading Medium Status register: %02x\n", |
345 | ret); | |
83e1b918 | 346 | return ret; /* TODO: callers not checking for error ret */ |
2e55cc72 | 347 | } |
83e1b918 GG |
348 | |
349 | return le16_to_cpu(v); | |
350 | ||
2e55cc72 DB |
351 | } |
352 | ||
d9fe64e5 | 353 | int asix_write_medium_mode(struct usbnet *dev, u16 mode, int in_pm) |
2e55cc72 | 354 | { |
933a27d3 | 355 | int ret; |
2e55cc72 | 356 | |
60b86755 | 357 | netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode); |
d9fe64e5 RF |
358 | ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, |
359 | mode, 0, 0, NULL, in_pm); | |
933a27d3 | 360 | if (ret < 0) |
60b86755 JP |
361 | netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n", |
362 | mode, ret); | |
2e55cc72 | 363 | |
933a27d3 DH |
364 | return ret; |
365 | } | |
2e55cc72 | 366 | |
d9fe64e5 | 367 | int asix_write_gpio(struct usbnet *dev, u16 value, int sleep, int in_pm) |
933a27d3 DH |
368 | { |
369 | int ret; | |
2e55cc72 | 370 | |
60b86755 | 371 | netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value); |
d9fe64e5 | 372 | ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL, in_pm); |
933a27d3 | 373 | if (ret < 0) |
60b86755 JP |
374 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n", |
375 | value, ret); | |
2e55cc72 | 376 | |
933a27d3 DH |
377 | if (sleep) |
378 | msleep(sleep); | |
379 | ||
380 | return ret; | |
2e55cc72 DB |
381 | } |
382 | ||
933a27d3 DH |
383 | /* |
384 | * AX88772 & AX88178 have a 16-bit RX_CTL value | |
385 | */ | |
607740bc | 386 | void asix_set_multicast(struct net_device *net) |
2e55cc72 DB |
387 | { |
388 | struct usbnet *dev = netdev_priv(net); | |
48b1be6a | 389 | struct asix_data *data = (struct asix_data *)&dev->data; |
933a27d3 | 390 | u16 rx_ctl = AX_DEFAULT_RX_CTL; |
2e55cc72 DB |
391 | |
392 | if (net->flags & IFF_PROMISC) { | |
933a27d3 | 393 | rx_ctl |= AX_RX_CTL_PRO; |
8e95a202 | 394 | } else if (net->flags & IFF_ALLMULTI || |
4cd24eaf | 395 | netdev_mc_count(net) > AX_MAX_MCAST) { |
933a27d3 | 396 | rx_ctl |= AX_RX_CTL_AMALL; |
4cd24eaf | 397 | } else if (netdev_mc_empty(net)) { |
2e55cc72 DB |
398 | /* just broadcast and directed */ |
399 | } else { | |
400 | /* We use the 20 byte dev->data | |
401 | * for our 8 byte filter buffer | |
402 | * to avoid allocating memory that | |
403 | * is tricky to free later */ | |
22bedad3 | 404 | struct netdev_hw_addr *ha; |
2e55cc72 | 405 | u32 crc_bits; |
2e55cc72 DB |
406 | |
407 | memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); | |
408 | ||
409 | /* Build the multicast hash filter. */ | |
22bedad3 JP |
410 | netdev_for_each_mc_addr(ha, net) { |
411 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
2e55cc72 DB |
412 | data->multi_filter[crc_bits >> 3] |= |
413 | 1 << (crc_bits & 7); | |
2e55cc72 DB |
414 | } |
415 | ||
48b1be6a | 416 | asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, |
2e55cc72 DB |
417 | AX_MCAST_FILTER_SIZE, data->multi_filter); |
418 | ||
933a27d3 | 419 | rx_ctl |= AX_RX_CTL_AM; |
2e55cc72 DB |
420 | } |
421 | ||
48b1be6a | 422 | asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); |
2e55cc72 DB |
423 | } |
424 | ||
607740bc | 425 | int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) |
2e55cc72 DB |
426 | { |
427 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 428 | __le16 res; |
d9fe64e5 RF |
429 | u8 smsr; |
430 | int i = 0; | |
8a46f665 | 431 | int ret; |
2e55cc72 | 432 | |
a9fc6338 | 433 | mutex_lock(&dev->phy_mutex); |
d9fe64e5 | 434 | do { |
8a46f665 | 435 | ret = asix_set_sw_mii(dev, 0); |
610df1d2 | 436 | if (ret == -ENODEV || ret == -ETIMEDOUT) |
8a46f665 | 437 | break; |
d9fe64e5 | 438 | usleep_range(1000, 1100); |
8a46f665 RF |
439 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
440 | 0, 0, 1, &smsr, 0); | |
441 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); | |
610df1d2 | 442 | if (ret == -ENODEV || ret == -ETIMEDOUT) { |
8a46f665 RF |
443 | mutex_unlock(&dev->phy_mutex); |
444 | return ret; | |
445 | } | |
d9fe64e5 | 446 | |
48b1be6a | 447 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, |
d9fe64e5 RF |
448 | (__u16)loc, 2, &res, 0); |
449 | asix_set_hw_mii(dev, 0); | |
a9fc6338 | 450 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 | 451 | |
60b86755 | 452 | netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
d9fe64e5 | 453 | phy_id, loc, le16_to_cpu(res)); |
2e55cc72 | 454 | |
51bf2976 | 455 | return le16_to_cpu(res); |
2e55cc72 DB |
456 | } |
457 | ||
607740bc | 458 | void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) |
2e55cc72 DB |
459 | { |
460 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 461 | __le16 res = cpu_to_le16(val); |
d9fe64e5 RF |
462 | u8 smsr; |
463 | int i = 0; | |
8a46f665 | 464 | int ret; |
2e55cc72 | 465 | |
60b86755 | 466 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
d9fe64e5 RF |
467 | phy_id, loc, val); |
468 | ||
469 | mutex_lock(&dev->phy_mutex); | |
470 | do { | |
8a46f665 RF |
471 | ret = asix_set_sw_mii(dev, 0); |
472 | if (ret == -ENODEV) | |
473 | break; | |
d9fe64e5 | 474 | usleep_range(1000, 1100); |
8a46f665 RF |
475 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
476 | 0, 0, 1, &smsr, 0); | |
477 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); | |
478 | if (ret == -ENODEV) { | |
479 | mutex_unlock(&dev->phy_mutex); | |
480 | return; | |
481 | } | |
d9fe64e5 RF |
482 | |
483 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, | |
484 | (__u16)loc, 2, &res, 0); | |
485 | asix_set_hw_mii(dev, 0); | |
486 | mutex_unlock(&dev->phy_mutex); | |
487 | } | |
488 | ||
489 | int asix_mdio_read_nopm(struct net_device *netdev, int phy_id, int loc) | |
490 | { | |
491 | struct usbnet *dev = netdev_priv(netdev); | |
492 | __le16 res; | |
493 | u8 smsr; | |
494 | int i = 0; | |
8a46f665 | 495 | int ret; |
d9fe64e5 RF |
496 | |
497 | mutex_lock(&dev->phy_mutex); | |
498 | do { | |
8a46f665 | 499 | ret = asix_set_sw_mii(dev, 1); |
610df1d2 | 500 | if (ret == -ENODEV || ret == -ETIMEDOUT) |
8a46f665 | 501 | break; |
d9fe64e5 | 502 | usleep_range(1000, 1100); |
8a46f665 RF |
503 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
504 | 0, 0, 1, &smsr, 1); | |
505 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); | |
610df1d2 | 506 | if (ret == -ENODEV || ret == -ETIMEDOUT) { |
8a46f665 RF |
507 | mutex_unlock(&dev->phy_mutex); |
508 | return ret; | |
509 | } | |
d9fe64e5 RF |
510 | |
511 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, | |
512 | (__u16)loc, 2, &res, 1); | |
513 | asix_set_hw_mii(dev, 1); | |
514 | mutex_unlock(&dev->phy_mutex); | |
515 | ||
516 | netdev_dbg(dev->net, "asix_mdio_read_nopm() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", | |
517 | phy_id, loc, le16_to_cpu(res)); | |
518 | ||
519 | return le16_to_cpu(res); | |
520 | } | |
521 | ||
522 | void | |
523 | asix_mdio_write_nopm(struct net_device *netdev, int phy_id, int loc, int val) | |
524 | { | |
525 | struct usbnet *dev = netdev_priv(netdev); | |
526 | __le16 res = cpu_to_le16(val); | |
527 | u8 smsr; | |
528 | int i = 0; | |
8a46f665 | 529 | int ret; |
d9fe64e5 RF |
530 | |
531 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", | |
532 | phy_id, loc, val); | |
533 | ||
a9fc6338 | 534 | mutex_lock(&dev->phy_mutex); |
d9fe64e5 | 535 | do { |
8a46f665 RF |
536 | ret = asix_set_sw_mii(dev, 1); |
537 | if (ret == -ENODEV) | |
538 | break; | |
d9fe64e5 | 539 | usleep_range(1000, 1100); |
8a46f665 RF |
540 | ret = asix_read_cmd(dev, AX_CMD_STATMNGSTS_REG, |
541 | 0, 0, 1, &smsr, 1); | |
542 | } while (!(smsr & AX_HOST_EN) && (i++ < 30) && (ret != -ENODEV)); | |
543 | if (ret == -ENODEV) { | |
544 | mutex_unlock(&dev->phy_mutex); | |
545 | return; | |
546 | } | |
d9fe64e5 RF |
547 | |
548 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, | |
549 | (__u16)loc, 2, &res, 1); | |
550 | asix_set_hw_mii(dev, 1); | |
a9fc6338 | 551 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 DB |
552 | } |
553 | ||
607740bc | 554 | void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
555 | { |
556 | struct usbnet *dev = netdev_priv(net); | |
557 | u8 opt; | |
558 | ||
d9fe64e5 RF |
559 | if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, |
560 | 0, 0, 1, &opt, 0) < 0) { | |
2e55cc72 DB |
561 | wolinfo->supported = 0; |
562 | wolinfo->wolopts = 0; | |
563 | return; | |
564 | } | |
565 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
566 | wolinfo->wolopts = 0; | |
f87ce5b2 | 567 | if (opt & AX_MONITOR_LINK) |
568 | wolinfo->wolopts |= WAKE_PHY; | |
569 | if (opt & AX_MONITOR_MAGIC) | |
570 | wolinfo->wolopts |= WAKE_MAGIC; | |
2e55cc72 DB |
571 | } |
572 | ||
607740bc | 573 | int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
574 | { |
575 | struct usbnet *dev = netdev_priv(net); | |
576 | u8 opt = 0; | |
2e55cc72 DB |
577 | |
578 | if (wolinfo->wolopts & WAKE_PHY) | |
579 | opt |= AX_MONITOR_LINK; | |
580 | if (wolinfo->wolopts & WAKE_MAGIC) | |
581 | opt |= AX_MONITOR_MAGIC; | |
2e55cc72 | 582 | |
48b1be6a | 583 | if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, |
d9fe64e5 | 584 | opt, 0, 0, NULL, 0) < 0) |
2e55cc72 DB |
585 | return -EINVAL; |
586 | ||
587 | return 0; | |
588 | } | |
589 | ||
607740bc | 590 | int asix_get_eeprom_len(struct net_device *net) |
2e55cc72 | 591 | { |
ceb02c91 | 592 | return AX_EEPROM_LEN; |
2e55cc72 DB |
593 | } |
594 | ||
607740bc CR |
595 | int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
596 | u8 *data) | |
2e55cc72 DB |
597 | { |
598 | struct usbnet *dev = netdev_priv(net); | |
ceb02c91 CR |
599 | u16 *eeprom_buff; |
600 | int first_word, last_word; | |
2e55cc72 DB |
601 | int i; |
602 | ||
ceb02c91 | 603 | if (eeprom->len == 0) |
2e55cc72 DB |
604 | return -EINVAL; |
605 | ||
606 | eeprom->magic = AX_EEPROM_MAGIC; | |
607 | ||
ceb02c91 CR |
608 | first_word = eeprom->offset >> 1; |
609 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
610 | ||
611 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
612 | GFP_KERNEL); | |
613 | if (!eeprom_buff) | |
614 | return -ENOMEM; | |
615 | ||
2e55cc72 | 616 | /* ax8817x returns 2 bytes from eeprom on read */ |
ceb02c91 CR |
617 | for (i = first_word; i <= last_word; i++) { |
618 | if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2, | |
d9fe64e5 | 619 | &eeprom_buff[i - first_word], 0) < 0) { |
ceb02c91 CR |
620 | kfree(eeprom_buff); |
621 | return -EIO; | |
622 | } | |
2e55cc72 | 623 | } |
ceb02c91 CR |
624 | |
625 | memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); | |
626 | kfree(eeprom_buff); | |
2e55cc72 DB |
627 | return 0; |
628 | } | |
629 | ||
cb7b24cd CR |
630 | int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
631 | u8 *data) | |
632 | { | |
633 | struct usbnet *dev = netdev_priv(net); | |
634 | u16 *eeprom_buff; | |
635 | int first_word, last_word; | |
636 | int i; | |
637 | int ret; | |
638 | ||
639 | netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n", | |
640 | eeprom->len, eeprom->offset, eeprom->magic); | |
641 | ||
642 | if (eeprom->len == 0) | |
643 | return -EINVAL; | |
644 | ||
645 | if (eeprom->magic != AX_EEPROM_MAGIC) | |
646 | return -EINVAL; | |
647 | ||
648 | first_word = eeprom->offset >> 1; | |
649 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
650 | ||
651 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
652 | GFP_KERNEL); | |
653 | if (!eeprom_buff) | |
654 | return -ENOMEM; | |
655 | ||
656 | /* align data to 16 bit boundaries, read the missing data from | |
657 | the EEPROM */ | |
658 | if (eeprom->offset & 1) { | |
659 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2, | |
d9fe64e5 | 660 | &eeprom_buff[0], 0); |
cb7b24cd CR |
661 | if (ret < 0) { |
662 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word); | |
663 | goto free; | |
664 | } | |
665 | } | |
666 | ||
667 | if ((eeprom->offset + eeprom->len) & 1) { | |
668 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2, | |
d9fe64e5 | 669 | &eeprom_buff[last_word - first_word], 0); |
cb7b24cd CR |
670 | if (ret < 0) { |
671 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word); | |
672 | goto free; | |
673 | } | |
674 | } | |
675 | ||
676 | memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len); | |
677 | ||
678 | /* write data to EEPROM */ | |
d9fe64e5 | 679 | ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL, 0); |
cb7b24cd CR |
680 | if (ret < 0) { |
681 | netdev_err(net, "Failed to enable EEPROM write\n"); | |
682 | goto free; | |
683 | } | |
684 | msleep(20); | |
685 | ||
686 | for (i = first_word; i <= last_word; i++) { | |
687 | netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n", | |
688 | i, eeprom_buff[i - first_word]); | |
689 | ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i, | |
d9fe64e5 | 690 | eeprom_buff[i - first_word], 0, NULL, 0); |
cb7b24cd CR |
691 | if (ret < 0) { |
692 | netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", | |
693 | i); | |
694 | goto free; | |
695 | } | |
696 | msleep(20); | |
697 | } | |
698 | ||
d9fe64e5 | 699 | ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL, 0); |
cb7b24cd CR |
700 | if (ret < 0) { |
701 | netdev_err(net, "Failed to disable EEPROM write\n"); | |
702 | goto free; | |
703 | } | |
704 | ||
705 | ret = 0; | |
706 | free: | |
707 | kfree(eeprom_buff); | |
708 | return ret; | |
709 | } | |
710 | ||
607740bc | 711 | void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) |
2e55cc72 DB |
712 | { |
713 | /* Inherit standard device info */ | |
714 | usbnet_get_drvinfo(net, info); | |
7826d43f JP |
715 | strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
716 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
2e55cc72 DB |
717 | } |
718 | ||
607740bc | 719 | int asix_set_mac_address(struct net_device *net, void *p) |
7f29a3ba JK |
720 | { |
721 | struct usbnet *dev = netdev_priv(net); | |
722 | struct asix_data *data = (struct asix_data *)&dev->data; | |
723 | struct sockaddr *addr = p; | |
724 | ||
725 | if (netif_running(net)) | |
726 | return -EBUSY; | |
727 | if (!is_valid_ether_addr(addr->sa_data)) | |
728 | return -EADDRNOTAVAIL; | |
729 | ||
730 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
731 | ||
732 | /* We use the 20 byte dev->data | |
733 | * for our 6 byte mac buffer | |
734 | * to avoid allocating memory that | |
735 | * is tricky to free later */ | |
736 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
737 | asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
738 | data->mac_addr); | |
739 | ||
740 | return 0; | |
741 | } |