Commit | Line | Data |
---|---|---|
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 | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
22 | ||
607740bc CR |
23 | #include "asix.h" |
24 | ||
25 | int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, | |
26 | u16 size, void *data) | |
2e55cc72 | 27 | { |
0bc69efb ML |
28 | int ret; |
29 | ret = usbnet_read_cmd(dev, cmd, | |
30 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
31 | value, index, data, size); | |
32 | ||
33 | if (ret != size && ret >= 0) | |
34 | return -EINVAL; | |
35 | return ret; | |
2e55cc72 DB |
36 | } |
37 | ||
607740bc CR |
38 | int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
39 | u16 size, void *data) | |
2e55cc72 | 40 | { |
0bc69efb ML |
41 | return usbnet_write_cmd(dev, cmd, |
42 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
43 | value, index, data, size); | |
2e55cc72 DB |
44 | } |
45 | ||
607740bc CR |
46 | void asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, |
47 | u16 size, void *data) | |
933a27d3 | 48 | { |
0bc69efb ML |
49 | usbnet_write_cmd_async(dev, cmd, |
50 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
51 | value, index, data, size); | |
933a27d3 DH |
52 | } |
53 | ||
8b5b6f54 LS |
54 | int asix_rx_fixup_internal(struct usbnet *dev, struct sk_buff *skb, |
55 | struct asix_rx_fixup_info *rx) | |
933a27d3 | 56 | { |
a9e0aca4 | 57 | int offset = 0; |
933a27d3 | 58 | |
8b5b6f54 LS |
59 | while (offset + sizeof(u16) <= skb->len) { |
60 | u16 remaining = 0; | |
61 | unsigned char *data; | |
933a27d3 | 62 | |
8b5b6f54 LS |
63 | if (!rx->size) { |
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 | |
8b5b6f54 LS |
85 | /* get the packet length */ |
86 | rx->size = (u16) (rx->header & 0x7ff); | |
87 | if (rx->size != ((~rx->header >> 16) & 0x7ff)) { | |
88 | netdev_err(dev->net, "asix_rx_fixup() Bad Header Length 0x%x, offset %d\n", | |
89 | rx->header, offset); | |
90 | rx->size = 0; | |
91 | return 0; | |
92 | } | |
93 | rx->ax_skb = netdev_alloc_skb_ip_align(dev->net, | |
94 | rx->size); | |
95 | if (!rx->ax_skb) | |
96 | return 0; | |
3f78d1f2 NJ |
97 | } |
98 | ||
8b5b6f54 | 99 | if (rx->size > dev->net->mtu + ETH_HLEN + VLAN_HLEN) { |
60b86755 | 100 | netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n", |
8b5b6f54 LS |
101 | rx->size); |
102 | kfree_skb(rx->ax_skb); | |
933a27d3 DH |
103 | return 0; |
104 | } | |
933a27d3 | 105 | |
8b5b6f54 LS |
106 | if (rx->size > skb->len - offset) { |
107 | remaining = rx->size - (skb->len - offset); | |
108 | rx->size = skb->len - offset; | |
109 | } | |
933a27d3 | 110 | |
8b5b6f54 LS |
111 | data = skb_put(rx->ax_skb, rx->size); |
112 | memcpy(data, skb->data + offset, rx->size); | |
113 | if (!remaining) | |
114 | usbnet_skb_return(dev, rx->ax_skb); | |
115 | ||
116 | offset += (rx->size + 1) & 0xfffe; | |
117 | rx->size = remaining; | |
933a27d3 DH |
118 | } |
119 | ||
a9e0aca4 | 120 | if (skb->len != offset) { |
8b5b6f54 LS |
121 | netdev_err(dev->net, "asix_rx_fixup() Bad SKB Length %d, %d\n", |
122 | skb->len, offset); | |
933a27d3 DH |
123 | return 0; |
124 | } | |
8b5b6f54 | 125 | |
933a27d3 DH |
126 | return 1; |
127 | } | |
128 | ||
8b5b6f54 LS |
129 | int asix_rx_fixup_common(struct usbnet *dev, struct sk_buff *skb) |
130 | { | |
131 | struct asix_common_private *dp = dev->driver_priv; | |
132 | struct asix_rx_fixup_info *rx = &dp->rx_fixup_info; | |
133 | ||
134 | return asix_rx_fixup_internal(dev, skb, rx); | |
135 | } | |
136 | ||
607740bc CR |
137 | struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, |
138 | gfp_t flags) | |
933a27d3 DH |
139 | { |
140 | int padlen; | |
141 | int headroom = skb_headroom(skb); | |
142 | int tailroom = skb_tailroom(skb); | |
143 | u32 packet_len; | |
144 | u32 padbytes = 0xffff0000; | |
145 | ||
2a580949 | 146 | padlen = ((skb->len + 4) & (dev->maxpacket - 1)) ? 0 : 4; |
933a27d3 | 147 | |
95162d65 ED |
148 | /* We need to push 4 bytes in front of frame (packet_len) |
149 | * and maybe add 4 bytes after the end (if padlen is 4) | |
150 | * | |
151 | * Avoid skb_copy_expand() expensive call, using following rules : | |
152 | * - We are allowed to push 4 bytes in headroom if skb_header_cloned() | |
153 | * is false (and if we have 4 bytes of headroom) | |
154 | * - We are allowed to put 4 bytes at tail if skb_cloned() | |
155 | * is false (and if we have 4 bytes of tailroom) | |
156 | * | |
157 | * TCP packets for example are cloned, but skb_header_release() | |
158 | * was called in tcp stack, allowing us to use headroom for our needs. | |
159 | */ | |
160 | if (!skb_header_cloned(skb) && | |
161 | !(padlen && skb_cloned(skb)) && | |
162 | headroom + tailroom >= 4 + padlen) { | |
163 | /* following should not happen, but better be safe */ | |
164 | if (headroom < 4 || | |
165 | tailroom < padlen) { | |
933a27d3 | 166 | skb->data = memmove(skb->head + 4, skb->data, skb->len); |
27a884dc | 167 | skb_set_tail_pointer(skb, skb->len); |
933a27d3 DH |
168 | } |
169 | } else { | |
170 | struct sk_buff *skb2; | |
95162d65 | 171 | |
933a27d3 DH |
172 | skb2 = skb_copy_expand(skb, 4, padlen, flags); |
173 | dev_kfree_skb_any(skb); | |
174 | skb = skb2; | |
175 | if (!skb) | |
176 | return NULL; | |
177 | } | |
178 | ||
95162d65 | 179 | packet_len = ((skb->len ^ 0x0000ffff) << 16) + skb->len; |
933a27d3 | 180 | skb_push(skb, 4); |
57e4f041 | 181 | cpu_to_le32s(&packet_len); |
27d7ff46 | 182 | skb_copy_to_linear_data(skb, &packet_len, sizeof(packet_len)); |
933a27d3 | 183 | |
2a580949 | 184 | if (padlen) { |
57e4f041 | 185 | cpu_to_le32s(&padbytes); |
27a884dc | 186 | memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes)); |
933a27d3 DH |
187 | skb_put(skb, sizeof(padbytes)); |
188 | } | |
189 | return skb; | |
190 | } | |
191 | ||
607740bc | 192 | int asix_set_sw_mii(struct usbnet *dev) |
48b1be6a DH |
193 | { |
194 | int ret; | |
195 | ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); | |
196 | if (ret < 0) | |
60b86755 | 197 | netdev_err(dev->net, "Failed to enable software MII access\n"); |
48b1be6a DH |
198 | return ret; |
199 | } | |
200 | ||
607740bc | 201 | int asix_set_hw_mii(struct usbnet *dev) |
48b1be6a DH |
202 | { |
203 | int ret; | |
204 | ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); | |
205 | if (ret < 0) | |
60b86755 | 206 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); |
48b1be6a DH |
207 | return ret; |
208 | } | |
209 | ||
16626b0c | 210 | int asix_read_phy_addr(struct usbnet *dev, int internal) |
48b1be6a | 211 | { |
16626b0c | 212 | int offset = (internal ? 1 : 0); |
51bf2976 AV |
213 | u8 buf[2]; |
214 | int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf); | |
48b1be6a | 215 | |
60b86755 | 216 | netdev_dbg(dev->net, "asix_get_phy_addr()\n"); |
933a27d3 | 217 | |
51bf2976 | 218 | if (ret < 0) { |
60b86755 | 219 | netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); |
51bf2976 | 220 | goto out; |
48b1be6a | 221 | } |
60b86755 JP |
222 | netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n", |
223 | *((__le16 *)buf)); | |
16626b0c | 224 | ret = buf[offset]; |
51bf2976 AV |
225 | |
226 | out: | |
48b1be6a DH |
227 | return ret; |
228 | } | |
229 | ||
16626b0c CR |
230 | int asix_get_phy_addr(struct usbnet *dev) |
231 | { | |
232 | /* return the address of the internal phy */ | |
233 | return asix_read_phy_addr(dev, 1); | |
234 | } | |
235 | ||
236 | ||
607740bc | 237 | int asix_sw_reset(struct usbnet *dev, u8 flags) |
48b1be6a DH |
238 | { |
239 | int ret; | |
240 | ||
241 | ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); | |
242 | if (ret < 0) | |
60b86755 | 243 | netdev_err(dev->net, "Failed to send software reset: %02x\n", ret); |
933a27d3 DH |
244 | |
245 | return ret; | |
246 | } | |
48b1be6a | 247 | |
607740bc | 248 | u16 asix_read_rx_ctl(struct usbnet *dev) |
933a27d3 | 249 | { |
51bf2976 AV |
250 | __le16 v; |
251 | int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v); | |
933a27d3 | 252 | |
51bf2976 | 253 | if (ret < 0) { |
60b86755 | 254 | netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret); |
51bf2976 | 255 | goto out; |
933a27d3 | 256 | } |
51bf2976 AV |
257 | ret = le16_to_cpu(v); |
258 | out: | |
48b1be6a DH |
259 | return ret; |
260 | } | |
261 | ||
607740bc | 262 | int asix_write_rx_ctl(struct usbnet *dev, u16 mode) |
48b1be6a DH |
263 | { |
264 | int ret; | |
265 | ||
60b86755 | 266 | netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode); |
48b1be6a DH |
267 | ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); |
268 | if (ret < 0) | |
60b86755 JP |
269 | netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n", |
270 | mode, ret); | |
48b1be6a DH |
271 | |
272 | return ret; | |
273 | } | |
274 | ||
607740bc | 275 | u16 asix_read_medium_status(struct usbnet *dev) |
2e55cc72 | 276 | { |
51bf2976 AV |
277 | __le16 v; |
278 | int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v); | |
2e55cc72 | 279 | |
51bf2976 | 280 | if (ret < 0) { |
60b86755 JP |
281 | netdev_err(dev->net, "Error reading Medium Status register: %02x\n", |
282 | ret); | |
83e1b918 | 283 | return ret; /* TODO: callers not checking for error ret */ |
2e55cc72 | 284 | } |
83e1b918 GG |
285 | |
286 | return le16_to_cpu(v); | |
287 | ||
2e55cc72 DB |
288 | } |
289 | ||
607740bc | 290 | int asix_write_medium_mode(struct usbnet *dev, u16 mode) |
2e55cc72 | 291 | { |
933a27d3 | 292 | int ret; |
2e55cc72 | 293 | |
60b86755 | 294 | netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode); |
933a27d3 DH |
295 | ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); |
296 | if (ret < 0) | |
60b86755 JP |
297 | netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n", |
298 | mode, ret); | |
2e55cc72 | 299 | |
933a27d3 DH |
300 | return ret; |
301 | } | |
2e55cc72 | 302 | |
607740bc | 303 | int asix_write_gpio(struct usbnet *dev, u16 value, int sleep) |
933a27d3 DH |
304 | { |
305 | int ret; | |
2e55cc72 | 306 | |
60b86755 | 307 | netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value); |
933a27d3 DH |
308 | ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); |
309 | if (ret < 0) | |
60b86755 JP |
310 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n", |
311 | value, ret); | |
2e55cc72 | 312 | |
933a27d3 DH |
313 | if (sleep) |
314 | msleep(sleep); | |
315 | ||
316 | return ret; | |
2e55cc72 DB |
317 | } |
318 | ||
933a27d3 DH |
319 | /* |
320 | * AX88772 & AX88178 have a 16-bit RX_CTL value | |
321 | */ | |
607740bc | 322 | void asix_set_multicast(struct net_device *net) |
2e55cc72 DB |
323 | { |
324 | struct usbnet *dev = netdev_priv(net); | |
48b1be6a | 325 | struct asix_data *data = (struct asix_data *)&dev->data; |
933a27d3 | 326 | u16 rx_ctl = AX_DEFAULT_RX_CTL; |
2e55cc72 DB |
327 | |
328 | if (net->flags & IFF_PROMISC) { | |
933a27d3 | 329 | rx_ctl |= AX_RX_CTL_PRO; |
8e95a202 | 330 | } else if (net->flags & IFF_ALLMULTI || |
4cd24eaf | 331 | netdev_mc_count(net) > AX_MAX_MCAST) { |
933a27d3 | 332 | rx_ctl |= AX_RX_CTL_AMALL; |
4cd24eaf | 333 | } else if (netdev_mc_empty(net)) { |
2e55cc72 DB |
334 | /* just broadcast and directed */ |
335 | } else { | |
336 | /* We use the 20 byte dev->data | |
337 | * for our 8 byte filter buffer | |
338 | * to avoid allocating memory that | |
339 | * is tricky to free later */ | |
22bedad3 | 340 | struct netdev_hw_addr *ha; |
2e55cc72 | 341 | u32 crc_bits; |
2e55cc72 DB |
342 | |
343 | memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); | |
344 | ||
345 | /* Build the multicast hash filter. */ | |
22bedad3 JP |
346 | netdev_for_each_mc_addr(ha, net) { |
347 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
2e55cc72 DB |
348 | data->multi_filter[crc_bits >> 3] |= |
349 | 1 << (crc_bits & 7); | |
2e55cc72 DB |
350 | } |
351 | ||
48b1be6a | 352 | asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, |
2e55cc72 DB |
353 | AX_MCAST_FILTER_SIZE, data->multi_filter); |
354 | ||
933a27d3 | 355 | rx_ctl |= AX_RX_CTL_AM; |
2e55cc72 DB |
356 | } |
357 | ||
48b1be6a | 358 | asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); |
2e55cc72 DB |
359 | } |
360 | ||
607740bc | 361 | int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) |
2e55cc72 DB |
362 | { |
363 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 364 | __le16 res; |
2e55cc72 | 365 | |
a9fc6338 | 366 | mutex_lock(&dev->phy_mutex); |
48b1be6a DH |
367 | asix_set_sw_mii(dev); |
368 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, | |
51bf2976 | 369 | (__u16)loc, 2, &res); |
48b1be6a | 370 | asix_set_hw_mii(dev); |
a9fc6338 | 371 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 | 372 | |
60b86755 JP |
373 | netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
374 | phy_id, loc, le16_to_cpu(res)); | |
2e55cc72 | 375 | |
51bf2976 | 376 | return le16_to_cpu(res); |
2e55cc72 DB |
377 | } |
378 | ||
607740bc | 379 | void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) |
2e55cc72 DB |
380 | { |
381 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 382 | __le16 res = cpu_to_le16(val); |
2e55cc72 | 383 | |
60b86755 JP |
384 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
385 | phy_id, loc, val); | |
a9fc6338 | 386 | mutex_lock(&dev->phy_mutex); |
48b1be6a | 387 | asix_set_sw_mii(dev); |
51bf2976 | 388 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res); |
48b1be6a | 389 | asix_set_hw_mii(dev); |
a9fc6338 | 390 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 DB |
391 | } |
392 | ||
607740bc | 393 | void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
394 | { |
395 | struct usbnet *dev = netdev_priv(net); | |
396 | u8 opt; | |
397 | ||
48b1be6a | 398 | if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { |
2e55cc72 DB |
399 | wolinfo->supported = 0; |
400 | wolinfo->wolopts = 0; | |
401 | return; | |
402 | } | |
403 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
404 | wolinfo->wolopts = 0; | |
f87ce5b2 | 405 | if (opt & AX_MONITOR_LINK) |
406 | wolinfo->wolopts |= WAKE_PHY; | |
407 | if (opt & AX_MONITOR_MAGIC) | |
408 | wolinfo->wolopts |= WAKE_MAGIC; | |
2e55cc72 DB |
409 | } |
410 | ||
607740bc | 411 | int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
412 | { |
413 | struct usbnet *dev = netdev_priv(net); | |
414 | u8 opt = 0; | |
2e55cc72 DB |
415 | |
416 | if (wolinfo->wolopts & WAKE_PHY) | |
417 | opt |= AX_MONITOR_LINK; | |
418 | if (wolinfo->wolopts & WAKE_MAGIC) | |
419 | opt |= AX_MONITOR_MAGIC; | |
2e55cc72 | 420 | |
48b1be6a | 421 | if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, |
51bf2976 | 422 | opt, 0, 0, NULL) < 0) |
2e55cc72 DB |
423 | return -EINVAL; |
424 | ||
425 | return 0; | |
426 | } | |
427 | ||
607740bc | 428 | int asix_get_eeprom_len(struct net_device *net) |
2e55cc72 | 429 | { |
ceb02c91 | 430 | return AX_EEPROM_LEN; |
2e55cc72 DB |
431 | } |
432 | ||
607740bc CR |
433 | int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
434 | u8 *data) | |
2e55cc72 DB |
435 | { |
436 | struct usbnet *dev = netdev_priv(net); | |
ceb02c91 CR |
437 | u16 *eeprom_buff; |
438 | int first_word, last_word; | |
2e55cc72 DB |
439 | int i; |
440 | ||
ceb02c91 | 441 | if (eeprom->len == 0) |
2e55cc72 DB |
442 | return -EINVAL; |
443 | ||
444 | eeprom->magic = AX_EEPROM_MAGIC; | |
445 | ||
ceb02c91 CR |
446 | first_word = eeprom->offset >> 1; |
447 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
448 | ||
449 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
450 | GFP_KERNEL); | |
451 | if (!eeprom_buff) | |
452 | return -ENOMEM; | |
453 | ||
2e55cc72 | 454 | /* ax8817x returns 2 bytes from eeprom on read */ |
ceb02c91 CR |
455 | for (i = first_word; i <= last_word; i++) { |
456 | if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2, | |
457 | &(eeprom_buff[i - first_word])) < 0) { | |
458 | kfree(eeprom_buff); | |
459 | return -EIO; | |
460 | } | |
2e55cc72 | 461 | } |
ceb02c91 CR |
462 | |
463 | memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); | |
464 | kfree(eeprom_buff); | |
2e55cc72 DB |
465 | return 0; |
466 | } | |
467 | ||
cb7b24cd CR |
468 | int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
469 | u8 *data) | |
470 | { | |
471 | struct usbnet *dev = netdev_priv(net); | |
472 | u16 *eeprom_buff; | |
473 | int first_word, last_word; | |
474 | int i; | |
475 | int ret; | |
476 | ||
477 | netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n", | |
478 | eeprom->len, eeprom->offset, eeprom->magic); | |
479 | ||
480 | if (eeprom->len == 0) | |
481 | return -EINVAL; | |
482 | ||
483 | if (eeprom->magic != AX_EEPROM_MAGIC) | |
484 | return -EINVAL; | |
485 | ||
486 | first_word = eeprom->offset >> 1; | |
487 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
488 | ||
489 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
490 | GFP_KERNEL); | |
491 | if (!eeprom_buff) | |
492 | return -ENOMEM; | |
493 | ||
494 | /* align data to 16 bit boundaries, read the missing data from | |
495 | the EEPROM */ | |
496 | if (eeprom->offset & 1) { | |
497 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2, | |
498 | &(eeprom_buff[0])); | |
499 | if (ret < 0) { | |
500 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word); | |
501 | goto free; | |
502 | } | |
503 | } | |
504 | ||
505 | if ((eeprom->offset + eeprom->len) & 1) { | |
506 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2, | |
507 | &(eeprom_buff[last_word - first_word])); | |
508 | if (ret < 0) { | |
509 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word); | |
510 | goto free; | |
511 | } | |
512 | } | |
513 | ||
514 | memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len); | |
515 | ||
516 | /* write data to EEPROM */ | |
517 | ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL); | |
518 | if (ret < 0) { | |
519 | netdev_err(net, "Failed to enable EEPROM write\n"); | |
520 | goto free; | |
521 | } | |
522 | msleep(20); | |
523 | ||
524 | for (i = first_word; i <= last_word; i++) { | |
525 | netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n", | |
526 | i, eeprom_buff[i - first_word]); | |
527 | ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i, | |
528 | eeprom_buff[i - first_word], 0, NULL); | |
529 | if (ret < 0) { | |
530 | netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", | |
531 | i); | |
532 | goto free; | |
533 | } | |
534 | msleep(20); | |
535 | } | |
536 | ||
537 | ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL); | |
538 | if (ret < 0) { | |
539 | netdev_err(net, "Failed to disable EEPROM write\n"); | |
540 | goto free; | |
541 | } | |
542 | ||
543 | ret = 0; | |
544 | free: | |
545 | kfree(eeprom_buff); | |
546 | return ret; | |
547 | } | |
548 | ||
607740bc | 549 | void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) |
2e55cc72 DB |
550 | { |
551 | /* Inherit standard device info */ | |
552 | usbnet_get_drvinfo(net, info); | |
7826d43f JP |
553 | strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
554 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
ceb02c91 | 555 | info->eedump_len = AX_EEPROM_LEN; |
2e55cc72 DB |
556 | } |
557 | ||
607740bc | 558 | int asix_set_mac_address(struct net_device *net, void *p) |
7f29a3ba JK |
559 | { |
560 | struct usbnet *dev = netdev_priv(net); | |
561 | struct asix_data *data = (struct asix_data *)&dev->data; | |
562 | struct sockaddr *addr = p; | |
563 | ||
564 | if (netif_running(net)) | |
565 | return -EBUSY; | |
566 | if (!is_valid_ether_addr(addr->sa_data)) | |
567 | return -EADDRNOTAVAIL; | |
568 | ||
569 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
570 | ||
571 | /* We use the 20 byte dev->data | |
572 | * for our 6 byte mac buffer | |
573 | * to avoid allocating memory that | |
574 | * is tricky to free later */ | |
575 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
576 | asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
577 | data->mac_addr); | |
578 | ||
579 | return 0; | |
580 | } |