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, | |
25 | u16 size, void *data) | |
2e55cc72 | 26 | { |
0bc69efb ML |
27 | int ret; |
28 | ret = usbnet_read_cmd(dev, cmd, | |
29 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
30 | value, index, data, size); | |
31 | ||
32 | if (ret != size && ret >= 0) | |
33 | return -EINVAL; | |
34 | return ret; | |
2e55cc72 DB |
35 | } |
36 | ||
607740bc CR |
37 | int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
38 | u16 size, void *data) | |
2e55cc72 | 39 | { |
0bc69efb ML |
40 | return usbnet_write_cmd(dev, cmd, |
41 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
42 | value, index, data, size); | |
2e55cc72 DB |
43 | } |
44 | ||
607740bc CR |
45 | void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
46 | u16 size, void *data) | |
933a27d3 | 47 | { |
0bc69efb ML |
48 | usbnet_write_cmd_async(dev, cmd, |
49 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
50 | value, index, data, size); | |
933a27d3 DH |
51 | } |
52 | ||
8b5b6f54 LS |
53 | int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb, |
54 | struct asix_rx_fixup_info *rx) | |
933a27d3 | 55 | { |
a9e0aca4 | 56 | int offset = 0; |
7b0378f5 | 57 | u16 size; |
933a27d3 | 58 | |
8b5b6f54 | 59 | while (offset + sizeof(u16) <= skb->len) { |
7b0378f5 | 60 | u16 copy_length; |
8b5b6f54 | 61 | unsigned char *data; |
933a27d3 | 62 | |
7b0378f5 | 63 | if (!rx->remaining) { |
8b5b6f54 LS |
64 | if ((skb->len - offset == sizeof(u16)) || |
65 | rx->split_head) { | |
66 | if(!rx->split_head) { | |
67 | rx->header = get_unaligned_le16( | |
68 | skb->data + offset); | |
69 | rx->split_head = true; | |
70 | offset += sizeof(u16); | |
71 | break; | |
72 | } else { | |
73 | rx->header |= (get_unaligned_le16( | |
74 | skb->data + offset) | |
75 | << 16); | |
76 | rx->split_head = false; | |
77 | offset += sizeof(u16); | |
78 | } | |
79 | } else { | |
80 | rx->header = get_unaligned_le32(skb->data + | |
81 | offset); | |
82 | offset += sizeof(u32); | |
83 | } | |
bc466e67 | 84 | |
7b0378f5 DJ |
85 | /* take frame length from Data header 32-bit word */ |
86 | size = (u16)(rx->header & 0x7ff); | |
87 | if (size != ((~rx->header >> 16) & 0x7ff)) { | |
8b5b6f54 LS |
88 | netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n", |
89 | rx->header, offset); | |
8b5b6f54 LS |
90 | return 0; |
91 | } | |
7b0378f5 | 92 | rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, size); |
8b5b6f54 LS |
93 | if (!rx->ax_skb) |
94 | return 0; | |
7b0378f5 | 95 | rx->remaining = size; |
3f78d1f2 NJ |
96 | } |
97 | ||
7b0378f5 | 98 | if (rx->remaining > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { |
60b86755 | 99 | netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n", |
7b0378f5 | 100 | rx->remaining); |
8b5b6f54 | 101 | kfree_skb(rx->ax_skb); |
c5060cec | 102 | rx->ax_skb = NULL; |
7b0378f5 | 103 | rx->remaining = 0; |
933a27d3 DH |
104 | return 0; |
105 | } | |
933a27d3 | 106 | |
7b0378f5 DJ |
107 | if (rx->remaining > skb->len - offset) { |
108 | copy_length = skb->len - offset; | |
109 | rx->remaining -= copy_length; | |
110 | } else { | |
111 | copy_length = rx->remaining; | |
112 | rx->remaining = 0; | |
8b5b6f54 | 113 | } |
933a27d3 | 114 | |
7b0378f5 DJ |
115 | data = skb_put(rx->ax_skb, copy_length); |
116 | memcpy(data, skb->data + offset, copy_length); | |
117 | if (!rx->remaining) | |
8b5b6f54 LS |
118 | usbnet_skb_return(dev, rx->ax_skb); |
119 | ||
7b0378f5 | 120 | offset += (copy_length + 1) & 0xfffe; |
933a27d3 DH |
121 | } |
122 | ||
a9e0aca4 | 123 | if (skb->len != offset) { |
8b5b6f54 LS |
124 | netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n", |
125 | skb->len, offset); | |
933a27d3 DH |
126 | return 0; |
127 | } | |
8b5b6f54 | 128 | |
933a27d3 DH |
129 | return 1; |
130 | } | |
131 | ||
8b5b6f54 LS |
132 | int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb) |
133 | { | |
134 | struct asix_common_private *dp = dev->driver_priv; | |
135 | struct asix_rx_fixup_info *rx = &dp->rx_fixup_info; | |
136 | ||
137 | return asix_rx_fixup_internal(dev, skb, rx); | |
138 | } | |
139 | ||
607740bc CR |
140 | struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, |
141 | gfp_t flags) | |
933a27d3 DH |
142 | { |
143 | int padlen; | |
144 | int headroom = skb_headroom(skb); | |
145 | int tailroom = skb_tailroom(skb); | |
146 | u32 packet_len; | |
147 | u32 padbytes = 0xffff0000; | |
148 | ||
2a580949 | 149 | padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4; |
933a27d3 | 150 | |
95162d65 ED |
151 | /* We need to push 4 bytes in front of frame (packet_len) |
152 | * and maybe add 4 bytes after the end (if padlen is 4) | |
153 | * | |
154 | * Avoid skb_copy_expand() expensive call, using following rules : | |
155 | * - We are allowed to push 4 bytes in headroom if skb_header_cloned() | |
156 | * is false (and if we have 4 bytes of headroom) | |
157 | * - We are allowed to put 4 bytes at tail if skb_cloned() | |
158 | * is false (and if we have 4 bytes of tailroom) | |
159 | * | |
160 | * TCP packets for example are cloned, but skb_header_release() | |
161 | * was called in tcp stack, allowing us to use headroom for our needs. | |
162 | */ | |
163 | if (!skb_header_cloned(skb) && | |
164 | !(padlen && skb_cloned(skb)) && | |
165 | headroom + tailroom >= 4 + padlen) { | |
166 | /* following should not happen, but better be safe */ | |
167 | if (headroom < 4 || | |
168 | tailroom < padlen) { | |
933a27d3 | 169 | skb->data = memmove(skb->head + 4, skb->data, skb->len); |
27a884dc | 170 | skb_set_tail_pointer(skb, skb->len); |
933a27d3 DH |
171 | } |
172 | } else { | |
173 | struct sk_buff *skb2; | |
95162d65 | 174 | |
933a27d3 DH |
175 | skb2 = skb_copy_expand(skb, 4, padlen, flags); |
176 | dev_kfree_skb_any(skb); | |
177 | skb = skb2; | |
178 | if (!skb) | |
179 | return NULL; | |
180 | } | |
181 | ||
95162d65 | 182 | packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len; |
933a27d3 | 183 | skb_push(skb, 4); |
57e4f041 | 184 | cpu_to_le32s(&packet_len); |
27d7ff46 | 185 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); |
933a27d3 | 186 | |
2a580949 | 187 | if (padlen) { |
57e4f041 | 188 | cpu_to_le32s(&padbytes); |
27a884dc | 189 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); |
933a27d3 DH |
190 | skb_put(skb, sizeof(padbytes)); |
191 | } | |
1e9e39f4 | 192 | |
7a1e890e | 193 | usbnet_set_skb_tx_stats(skb, 1, 0); |
933a27d3 DH |
194 | return skb; |
195 | } | |
196 | ||
607740bc | 197 | int asix_set_sw_mii(struct usbnet *dev) |
48b1be6a DH |
198 | { |
199 | int ret; | |
200 | ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); | |
201 | if (ret < 0) | |
60b86755 | 202 | netdev_err(dev->net, "Failed to enable software MII access\n"); |
48b1be6a DH |
203 | return ret; |
204 | } | |
205 | ||
607740bc | 206 | int asix_set_hw_mii(struct usbnet *dev) |
48b1be6a DH |
207 | { |
208 | int ret; | |
209 | ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); | |
210 | if (ret < 0) | |
60b86755 | 211 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); |
48b1be6a DH |
212 | return ret; |
213 | } | |
214 | ||
16626b0c | 215 | int asix_read_phy_addr(struct usbnet *dev, int internal) |
48b1be6a | 216 | { |
16626b0c | 217 | int offset = (internal ? 1 : 0); |
51bf2976 AV |
218 | u8 buf[2]; |
219 | int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf); | |
48b1be6a | 220 | |
60b86755 | 221 | netdev_dbg(dev->net, "asix_get_phy_addr()\n"); |
933a27d3 | 222 | |
51bf2976 | 223 | if (ret < 0) { |
60b86755 | 224 | netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); |
51bf2976 | 225 | goto out; |
48b1be6a | 226 | } |
60b86755 JP |
227 | netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n", |
228 | *((__le16 *)buf)); | |
16626b0c | 229 | ret = buf[offset]; |
51bf2976 AV |
230 | |
231 | out: | |
48b1be6a DH |
232 | return ret; |
233 | } | |
234 | ||
16626b0c CR |
235 | int asix_get_phy_addr(struct usbnet *dev) |
236 | { | |
237 | /* return the address of the internal phy */ | |
238 | return asix_read_phy_addr(dev, 1); | |
239 | } | |
240 | ||
241 | ||
607740bc | 242 | int asix_sw_reset(struct usbnet *dev, u8 flags) |
48b1be6a DH |
243 | { |
244 | int ret; | |
245 | ||
246 | ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); | |
247 | if (ret < 0) | |
60b86755 | 248 | netdev_err(dev->net, "Failed to send software reset: %02x\n", ret); |
933a27d3 DH |
249 | |
250 | return ret; | |
251 | } | |
48b1be6a | 252 | |
607740bc | 253 | u16 asix_read_rx_ctl(struct usbnet *dev) |
933a27d3 | 254 | { |
51bf2976 AV |
255 | __le16 v; |
256 | int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v); | |
933a27d3 | 257 | |
51bf2976 | 258 | if (ret < 0) { |
60b86755 | 259 | netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret); |
51bf2976 | 260 | goto out; |
933a27d3 | 261 | } |
51bf2976 AV |
262 | ret = le16_to_cpu(v); |
263 | out: | |
48b1be6a DH |
264 | return ret; |
265 | } | |
266 | ||
607740bc | 267 | int asix_write_rx_ctl(struct usbnet *dev, u16 mode) |
48b1be6a DH |
268 | { |
269 | int ret; | |
270 | ||
60b86755 | 271 | netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode); |
48b1be6a DH |
272 | ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); |
273 | if (ret < 0) | |
60b86755 JP |
274 | netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n", |
275 | mode, ret); | |
48b1be6a DH |
276 | |
277 | return ret; | |
278 | } | |
279 | ||
607740bc | 280 | u16 asix_read_medium_status(struct usbnet *dev) |
2e55cc72 | 281 | { |
51bf2976 AV |
282 | __le16 v; |
283 | int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v); | |
2e55cc72 | 284 | |
51bf2976 | 285 | if (ret < 0) { |
60b86755 JP |
286 | netdev_err(dev->net, "Error reading Medium Status register: %02x\n", |
287 | ret); | |
83e1b918 | 288 | return ret; /* TODO: callers not checking for error ret */ |
2e55cc72 | 289 | } |
83e1b918 GG |
290 | |
291 | return le16_to_cpu(v); | |
292 | ||
2e55cc72 DB |
293 | } |
294 | ||
607740bc | 295 | int asix_write_medium_mode(struct usbnet *dev, u16 mode) |
2e55cc72 | 296 | { |
933a27d3 | 297 | int ret; |
2e55cc72 | 298 | |
60b86755 | 299 | netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode); |
933a27d3 DH |
300 | ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); |
301 | if (ret < 0) | |
60b86755 JP |
302 | netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n", |
303 | mode, ret); | |
2e55cc72 | 304 | |
933a27d3 DH |
305 | return ret; |
306 | } | |
2e55cc72 | 307 | |
607740bc | 308 | int asix_write_gpio(struct usbnet *dev, u16 value, int sleep) |
933a27d3 DH |
309 | { |
310 | int ret; | |
2e55cc72 | 311 | |
60b86755 | 312 | netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value); |
933a27d3 DH |
313 | ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); |
314 | if (ret < 0) | |
60b86755 JP |
315 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n", |
316 | value, ret); | |
2e55cc72 | 317 | |
933a27d3 DH |
318 | if (sleep) |
319 | msleep(sleep); | |
320 | ||
321 | return ret; | |
2e55cc72 DB |
322 | } |
323 | ||
933a27d3 DH |
324 | /* |
325 | * AX88772 & AX88178 have a 16-bit RX_CTL value | |
326 | */ | |
607740bc | 327 | void asix_set_multicast(struct net_device *net) |
2e55cc72 DB |
328 | { |
329 | struct usbnet *dev = netdev_priv(net); | |
48b1be6a | 330 | struct asix_data *data = (struct asix_data *)&dev->data; |
933a27d3 | 331 | u16 rx_ctl = AX_DEFAULT_RX_CTL; |
2e55cc72 DB |
332 | |
333 | if (net->flags & IFF_PROMISC) { | |
933a27d3 | 334 | rx_ctl |= AX_RX_CTL_PRO; |
8e95a202 | 335 | } else if (net->flags & IFF_ALLMULTI || |
4cd24eaf | 336 | netdev_mc_count(net) > AX_MAX_MCAST) { |
933a27d3 | 337 | rx_ctl |= AX_RX_CTL_AMALL; |
4cd24eaf | 338 | } else if (netdev_mc_empty(net)) { |
2e55cc72 DB |
339 | /* just broadcast and directed */ |
340 | } else { | |
341 | /* We use the 20 byte dev->data | |
342 | * for our 8 byte filter buffer | |
343 | * to avoid allocating memory that | |
344 | * is tricky to free later */ | |
22bedad3 | 345 | struct netdev_hw_addr *ha; |
2e55cc72 | 346 | u32 crc_bits; |
2e55cc72 DB |
347 | |
348 | memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); | |
349 | ||
350 | /* Build the multicast hash filter. */ | |
22bedad3 JP |
351 | netdev_for_each_mc_addr(ha, net) { |
352 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
2e55cc72 DB |
353 | data->multi_filter[crc_bits >> 3] |= |
354 | 1 << (crc_bits & 7); | |
2e55cc72 DB |
355 | } |
356 | ||
48b1be6a | 357 | asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, |
2e55cc72 DB |
358 | AX_MCAST_FILTER_SIZE, data->multi_filter); |
359 | ||
933a27d3 | 360 | rx_ctl |= AX_RX_CTL_AM; |
2e55cc72 DB |
361 | } |
362 | ||
48b1be6a | 363 | asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); |
2e55cc72 DB |
364 | } |
365 | ||
607740bc | 366 | int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) |
2e55cc72 DB |
367 | { |
368 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 369 | __le16 res; |
2e55cc72 | 370 | |
a9fc6338 | 371 | mutex_lock(&dev->phy_mutex); |
48b1be6a DH |
372 | asix_set_sw_mii(dev); |
373 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, | |
51bf2976 | 374 | (__u16)loc, 2, &res); |
48b1be6a | 375 | asix_set_hw_mii(dev); |
a9fc6338 | 376 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 | 377 | |
60b86755 JP |
378 | netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
379 | phy_id, loc, le16_to_cpu(res)); | |
2e55cc72 | 380 | |
51bf2976 | 381 | return le16_to_cpu(res); |
2e55cc72 DB |
382 | } |
383 | ||
607740bc | 384 | void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) |
2e55cc72 DB |
385 | { |
386 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 387 | __le16 res = cpu_to_le16(val); |
2e55cc72 | 388 | |
60b86755 JP |
389 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
390 | phy_id, loc, val); | |
a9fc6338 | 391 | mutex_lock(&dev->phy_mutex); |
48b1be6a | 392 | asix_set_sw_mii(dev); |
51bf2976 | 393 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res); |
48b1be6a | 394 | asix_set_hw_mii(dev); |
a9fc6338 | 395 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 DB |
396 | } |
397 | ||
607740bc | 398 | void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
399 | { |
400 | struct usbnet *dev = netdev_priv(net); | |
401 | u8 opt; | |
402 | ||
48b1be6a | 403 | if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { |
2e55cc72 DB |
404 | wolinfo->supported = 0; |
405 | wolinfo->wolopts = 0; | |
406 | return; | |
407 | } | |
408 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
409 | wolinfo->wolopts = 0; | |
f87ce5b2 | 410 | if (opt & AX_MONITOR_LINK) |
411 | wolinfo->wolopts |= WAKE_PHY; | |
412 | if (opt & AX_MONITOR_MAGIC) | |
413 | wolinfo->wolopts |= WAKE_MAGIC; | |
2e55cc72 DB |
414 | } |
415 | ||
607740bc | 416 | int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
417 | { |
418 | struct usbnet *dev = netdev_priv(net); | |
419 | u8 opt = 0; | |
2e55cc72 DB |
420 | |
421 | if (wolinfo->wolopts & WAKE_PHY) | |
422 | opt |= AX_MONITOR_LINK; | |
423 | if (wolinfo->wolopts & WAKE_MAGIC) | |
424 | opt |= AX_MONITOR_MAGIC; | |
2e55cc72 | 425 | |
48b1be6a | 426 | if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, |
51bf2976 | 427 | opt, 0, 0, NULL) < 0) |
2e55cc72 DB |
428 | return -EINVAL; |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
607740bc | 433 | int asix_get_eeprom_len(struct net_device *net) |
2e55cc72 | 434 | { |
ceb02c91 | 435 | return AX_EEPROM_LEN; |
2e55cc72 DB |
436 | } |
437 | ||
607740bc CR |
438 | int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
439 | u8 *data) | |
2e55cc72 DB |
440 | { |
441 | struct usbnet *dev = netdev_priv(net); | |
ceb02c91 CR |
442 | u16 *eeprom_buff; |
443 | int first_word, last_word; | |
2e55cc72 DB |
444 | int i; |
445 | ||
ceb02c91 | 446 | if (eeprom->len == 0) |
2e55cc72 DB |
447 | return -EINVAL; |
448 | ||
449 | eeprom->magic = AX_EEPROM_MAGIC; | |
450 | ||
ceb02c91 CR |
451 | first_word = eeprom->offset >> 1; |
452 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
453 | ||
454 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
455 | GFP_KERNEL); | |
456 | if (!eeprom_buff) | |
457 | return -ENOMEM; | |
458 | ||
2e55cc72 | 459 | /* ax8817x returns 2 bytes from eeprom on read */ |
ceb02c91 CR |
460 | for (i = first_word; i <= last_word; i++) { |
461 | if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2, | |
462 | &(eeprom_buff[i - first_word])) < 0) { | |
463 | kfree(eeprom_buff); | |
464 | return -EIO; | |
465 | } | |
2e55cc72 | 466 | } |
ceb02c91 CR |
467 | |
468 | memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); | |
469 | kfree(eeprom_buff); | |
2e55cc72 DB |
470 | return 0; |
471 | } | |
472 | ||
cb7b24cd CR |
473 | int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
474 | u8 *data) | |
475 | { | |
476 | struct usbnet *dev = netdev_priv(net); | |
477 | u16 *eeprom_buff; | |
478 | int first_word, last_word; | |
479 | int i; | |
480 | int ret; | |
481 | ||
482 | netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n", | |
483 | eeprom->len, eeprom->offset, eeprom->magic); | |
484 | ||
485 | if (eeprom->len == 0) | |
486 | return -EINVAL; | |
487 | ||
488 | if (eeprom->magic != AX_EEPROM_MAGIC) | |
489 | return -EINVAL; | |
490 | ||
491 | first_word = eeprom->offset >> 1; | |
492 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
493 | ||
494 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
495 | GFP_KERNEL); | |
496 | if (!eeprom_buff) | |
497 | return -ENOMEM; | |
498 | ||
499 | /* align data to 16 bit boundaries, read the missing data from | |
500 | the EEPROM */ | |
501 | if (eeprom->offset & 1) { | |
502 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2, | |
503 | &(eeprom_buff[0])); | |
504 | if (ret < 0) { | |
505 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word); | |
506 | goto free; | |
507 | } | |
508 | } | |
509 | ||
510 | if ((eeprom->offset + eeprom->len) & 1) { | |
511 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2, | |
512 | &(eeprom_buff[last_word - first_word])); | |
513 | if (ret < 0) { | |
514 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word); | |
515 | goto free; | |
516 | } | |
517 | } | |
518 | ||
519 | memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len); | |
520 | ||
521 | /* write data to EEPROM */ | |
522 | ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL); | |
523 | if (ret < 0) { | |
524 | netdev_err(net, "Failed to enable EEPROM write\n"); | |
525 | goto free; | |
526 | } | |
527 | msleep(20); | |
528 | ||
529 | for (i = first_word; i <= last_word; i++) { | |
530 | netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n", | |
531 | i, eeprom_buff[i - first_word]); | |
532 | ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i, | |
533 | eeprom_buff[i - first_word], 0, NULL); | |
534 | if (ret < 0) { | |
535 | netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", | |
536 | i); | |
537 | goto free; | |
538 | } | |
539 | msleep(20); | |
540 | } | |
541 | ||
542 | ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL); | |
543 | if (ret < 0) { | |
544 | netdev_err(net, "Failed to disable EEPROM write\n"); | |
545 | goto free; | |
546 | } | |
547 | ||
548 | ret = 0; | |
549 | free: | |
550 | kfree(eeprom_buff); | |
551 | return ret; | |
552 | } | |
553 | ||
607740bc | 554 | void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) |
2e55cc72 DB |
555 | { |
556 | /* Inherit standard device info */ | |
557 | usbnet_get_drvinfo(net, info); | |
7826d43f JP |
558 | strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
559 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
ceb02c91 | 560 | info->eedump_len = AX_EEPROM_LEN; |
2e55cc72 DB |
561 | } |
562 | ||
607740bc | 563 | int asix_set_mac_address(struct net_device *net, void *p) |
7f29a3ba JK |
564 | { |
565 | struct usbnet *dev = netdev_priv(net); | |
566 | struct asix_data *data = (struct asix_data *)&dev->data; | |
567 | struct sockaddr *addr = p; | |
568 | ||
569 | if (netif_running(net)) | |
570 | return -EBUSY; | |
571 | if (!is_valid_ether_addr(addr->sa_data)) | |
572 | return -EADDRNOTAVAIL; | |
573 | ||
574 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
575 | ||
576 | /* We use the 20 byte dev->data | |
577 | * for our 6 byte mac buffer | |
578 | * to avoid allocating memory that | |
579 | * is tricky to free later */ | |
580 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
581 | asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
582 | data->mac_addr); | |
583 | ||
584 | return 0; | |
585 | } |