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); | |
c5060cec | 103 | rx->ax_skb = NULL; |
104 | rx->size = 0U; | |
105 | ||
933a27d3 DH |
106 | return 0; |
107 | } | |
933a27d3 | 108 | |
8b5b6f54 LS |
109 | if (rx->size > skb->len - offset) { |
110 | remaining = rx->size - (skb->len - offset); | |
111 | rx->size = skb->len - offset; | |
112 | } | |
933a27d3 | 113 | |
8b5b6f54 LS |
114 | data = skb_put(rx->ax_skb, rx->size); |
115 | memcpy(data, skb->data + offset, rx->size); | |
116 | if (!remaining) | |
117 | usbnet_skb_return(dev, rx->ax_skb); | |
118 | ||
119 | offset += (rx->size + 1) & 0xfffe; | |
120 | rx->size = remaining; | |
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 | } | |
192 | return skb; | |
193 | } | |
194 | ||
607740bc | 195 | int asix_set_sw_mii(struct usbnet *dev) |
48b1be6a DH |
196 | { |
197 | int ret; | |
198 | ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); | |
199 | if (ret < 0) | |
60b86755 | 200 | netdev_err(dev->net, "Failed to enable software MII access\n"); |
48b1be6a DH |
201 | return ret; |
202 | } | |
203 | ||
607740bc | 204 | int asix_set_hw_mii(struct usbnet *dev) |
48b1be6a DH |
205 | { |
206 | int ret; | |
207 | ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); | |
208 | if (ret < 0) | |
60b86755 | 209 | netdev_err(dev->net, "Failed to enable hardware MII access\n"); |
48b1be6a DH |
210 | return ret; |
211 | } | |
212 | ||
16626b0c | 213 | int asix_read_phy_addr(struct usbnet *dev, int internal) |
48b1be6a | 214 | { |
16626b0c | 215 | int offset = (internal ? 1 : 0); |
51bf2976 AV |
216 | u8 buf[2]; |
217 | int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf); | |
48b1be6a | 218 | |
60b86755 | 219 | netdev_dbg(dev->net, "asix_get_phy_addr()\n"); |
933a27d3 | 220 | |
51bf2976 | 221 | if (ret < 0) { |
60b86755 | 222 | netdev_err(dev->net, "Error reading PHYID register: %02x\n", ret); |
51bf2976 | 223 | goto out; |
48b1be6a | 224 | } |
60b86755 JP |
225 | netdev_dbg(dev->net, "asix_get_phy_addr() returning 0x%04x\n", |
226 | *((__le16 *)buf)); | |
16626b0c | 227 | ret = buf[offset]; |
51bf2976 AV |
228 | |
229 | out: | |
48b1be6a DH |
230 | return ret; |
231 | } | |
232 | ||
16626b0c CR |
233 | int asix_get_phy_addr(struct usbnet *dev) |
234 | { | |
235 | /* return the address of the internal phy */ | |
236 | return asix_read_phy_addr(dev, 1); | |
237 | } | |
238 | ||
239 | ||
607740bc | 240 | int asix_sw_reset(struct usbnet *dev, u8 flags) |
48b1be6a DH |
241 | { |
242 | int ret; | |
243 | ||
244 | ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); | |
245 | if (ret < 0) | |
60b86755 | 246 | netdev_err(dev->net, "Failed to send software reset: %02x\n", ret); |
933a27d3 DH |
247 | |
248 | return ret; | |
249 | } | |
48b1be6a | 250 | |
607740bc | 251 | u16 asix_read_rx_ctl(struct usbnet *dev) |
933a27d3 | 252 | { |
51bf2976 AV |
253 | __le16 v; |
254 | int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v); | |
933a27d3 | 255 | |
51bf2976 | 256 | if (ret < 0) { |
60b86755 | 257 | netdev_err(dev->net, "Error reading RX_CTL register: %02x\n", ret); |
51bf2976 | 258 | goto out; |
933a27d3 | 259 | } |
51bf2976 AV |
260 | ret = le16_to_cpu(v); |
261 | out: | |
48b1be6a DH |
262 | return ret; |
263 | } | |
264 | ||
607740bc | 265 | int asix_write_rx_ctl(struct usbnet *dev, u16 mode) |
48b1be6a DH |
266 | { |
267 | int ret; | |
268 | ||
60b86755 | 269 | netdev_dbg(dev->net, "asix_write_rx_ctl() - mode = 0x%04x\n", mode); |
48b1be6a DH |
270 | ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); |
271 | if (ret < 0) | |
60b86755 JP |
272 | netdev_err(dev->net, "Failed to write RX_CTL mode to 0x%04x: %02x\n", |
273 | mode, ret); | |
48b1be6a DH |
274 | |
275 | return ret; | |
276 | } | |
277 | ||
607740bc | 278 | u16 asix_read_medium_status(struct usbnet *dev) |
2e55cc72 | 279 | { |
51bf2976 AV |
280 | __le16 v; |
281 | int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v); | |
2e55cc72 | 282 | |
51bf2976 | 283 | if (ret < 0) { |
60b86755 JP |
284 | netdev_err(dev->net, "Error reading Medium Status register: %02x\n", |
285 | ret); | |
83e1b918 | 286 | return ret; /* TODO: callers not checking for error ret */ |
2e55cc72 | 287 | } |
83e1b918 GG |
288 | |
289 | return le16_to_cpu(v); | |
290 | ||
2e55cc72 DB |
291 | } |
292 | ||
607740bc | 293 | int asix_write_medium_mode(struct usbnet *dev, u16 mode) |
2e55cc72 | 294 | { |
933a27d3 | 295 | int ret; |
2e55cc72 | 296 | |
60b86755 | 297 | netdev_dbg(dev->net, "asix_write_medium_mode() - mode = 0x%04x\n", mode); |
933a27d3 DH |
298 | ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); |
299 | if (ret < 0) | |
60b86755 JP |
300 | netdev_err(dev->net, "Failed to write Medium Mode mode to 0x%04x: %02x\n", |
301 | mode, ret); | |
2e55cc72 | 302 | |
933a27d3 DH |
303 | return ret; |
304 | } | |
2e55cc72 | 305 | |
607740bc | 306 | int asix_write_gpio(struct usbnet *dev, u16 value, int sleep) |
933a27d3 DH |
307 | { |
308 | int ret; | |
2e55cc72 | 309 | |
60b86755 | 310 | netdev_dbg(dev->net, "asix_write_gpio() - value = 0x%04x\n", value); |
933a27d3 DH |
311 | ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); |
312 | if (ret < 0) | |
60b86755 JP |
313 | netdev_err(dev->net, "Failed to write GPIO value 0x%04x: %02x\n", |
314 | value, ret); | |
2e55cc72 | 315 | |
933a27d3 DH |
316 | if (sleep) |
317 | msleep(sleep); | |
318 | ||
319 | return ret; | |
2e55cc72 DB |
320 | } |
321 | ||
933a27d3 DH |
322 | /* |
323 | * AX88772 & AX88178 have a 16-bit RX_CTL value | |
324 | */ | |
607740bc | 325 | void asix_set_multicast(struct net_device *net) |
2e55cc72 DB |
326 | { |
327 | struct usbnet *dev = netdev_priv(net); | |
48b1be6a | 328 | struct asix_data *data = (struct asix_data *)&dev->data; |
933a27d3 | 329 | u16 rx_ctl = AX_DEFAULT_RX_CTL; |
2e55cc72 DB |
330 | |
331 | if (net->flags & IFF_PROMISC) { | |
933a27d3 | 332 | rx_ctl |= AX_RX_CTL_PRO; |
8e95a202 | 333 | } else if (net->flags & IFF_ALLMULTI || |
4cd24eaf | 334 | netdev_mc_count(net) > AX_MAX_MCAST) { |
933a27d3 | 335 | rx_ctl |= AX_RX_CTL_AMALL; |
4cd24eaf | 336 | } else if (netdev_mc_empty(net)) { |
2e55cc72 DB |
337 | /* just broadcast and directed */ |
338 | } else { | |
339 | /* We use the 20 byte dev->data | |
340 | * for our 8 byte filter buffer | |
341 | * to avoid allocating memory that | |
342 | * is tricky to free later */ | |
22bedad3 | 343 | struct netdev_hw_addr *ha; |
2e55cc72 | 344 | u32 crc_bits; |
2e55cc72 DB |
345 | |
346 | memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); | |
347 | ||
348 | /* Build the multicast hash filter. */ | |
22bedad3 JP |
349 | netdev_for_each_mc_addr(ha, net) { |
350 | crc_bits = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
2e55cc72 DB |
351 | data->multi_filter[crc_bits >> 3] |= |
352 | 1 << (crc_bits & 7); | |
2e55cc72 DB |
353 | } |
354 | ||
48b1be6a | 355 | asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, |
2e55cc72 DB |
356 | AX_MCAST_FILTER_SIZE, data->multi_filter); |
357 | ||
933a27d3 | 358 | rx_ctl |= AX_RX_CTL_AM; |
2e55cc72 DB |
359 | } |
360 | ||
48b1be6a | 361 | asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); |
2e55cc72 DB |
362 | } |
363 | ||
607740bc | 364 | int asix_mdio_read(struct net_device *netdev, int phy_id, int loc) |
2e55cc72 DB |
365 | { |
366 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 367 | __le16 res; |
2e55cc72 | 368 | |
a9fc6338 | 369 | mutex_lock(&dev->phy_mutex); |
48b1be6a DH |
370 | asix_set_sw_mii(dev); |
371 | asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, | |
51bf2976 | 372 | (__u16)loc, 2, &res); |
48b1be6a | 373 | asix_set_hw_mii(dev); |
a9fc6338 | 374 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 | 375 | |
60b86755 JP |
376 | netdev_dbg(dev->net, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", |
377 | phy_id, loc, le16_to_cpu(res)); | |
2e55cc72 | 378 | |
51bf2976 | 379 | return le16_to_cpu(res); |
2e55cc72 DB |
380 | } |
381 | ||
607740bc | 382 | void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) |
2e55cc72 DB |
383 | { |
384 | struct usbnet *dev = netdev_priv(netdev); | |
51bf2976 | 385 | __le16 res = cpu_to_le16(val); |
2e55cc72 | 386 | |
60b86755 JP |
387 | netdev_dbg(dev->net, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
388 | phy_id, loc, val); | |
a9fc6338 | 389 | mutex_lock(&dev->phy_mutex); |
48b1be6a | 390 | asix_set_sw_mii(dev); |
51bf2976 | 391 | asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res); |
48b1be6a | 392 | asix_set_hw_mii(dev); |
a9fc6338 | 393 | mutex_unlock(&dev->phy_mutex); |
2e55cc72 DB |
394 | } |
395 | ||
607740bc | 396 | void asix_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
397 | { |
398 | struct usbnet *dev = netdev_priv(net); | |
399 | u8 opt; | |
400 | ||
48b1be6a | 401 | if (asix_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) { |
2e55cc72 DB |
402 | wolinfo->supported = 0; |
403 | wolinfo->wolopts = 0; | |
404 | return; | |
405 | } | |
406 | wolinfo->supported = WAKE_PHY | WAKE_MAGIC; | |
407 | wolinfo->wolopts = 0; | |
f87ce5b2 | 408 | if (opt & AX_MONITOR_LINK) |
409 | wolinfo->wolopts |= WAKE_PHY; | |
410 | if (opt & AX_MONITOR_MAGIC) | |
411 | wolinfo->wolopts |= WAKE_MAGIC; | |
2e55cc72 DB |
412 | } |
413 | ||
607740bc | 414 | int asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo) |
2e55cc72 DB |
415 | { |
416 | struct usbnet *dev = netdev_priv(net); | |
417 | u8 opt = 0; | |
2e55cc72 DB |
418 | |
419 | if (wolinfo->wolopts & WAKE_PHY) | |
420 | opt |= AX_MONITOR_LINK; | |
421 | if (wolinfo->wolopts & WAKE_MAGIC) | |
422 | opt |= AX_MONITOR_MAGIC; | |
2e55cc72 | 423 | |
48b1be6a | 424 | if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE, |
51bf2976 | 425 | opt, 0, 0, NULL) < 0) |
2e55cc72 DB |
426 | return -EINVAL; |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
607740bc | 431 | int asix_get_eeprom_len(struct net_device *net) |
2e55cc72 | 432 | { |
ceb02c91 | 433 | return AX_EEPROM_LEN; |
2e55cc72 DB |
434 | } |
435 | ||
607740bc CR |
436 | int asix_get_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
437 | u8 *data) | |
2e55cc72 DB |
438 | { |
439 | struct usbnet *dev = netdev_priv(net); | |
ceb02c91 CR |
440 | u16 *eeprom_buff; |
441 | int first_word, last_word; | |
2e55cc72 DB |
442 | int i; |
443 | ||
ceb02c91 | 444 | if (eeprom->len == 0) |
2e55cc72 DB |
445 | return -EINVAL; |
446 | ||
447 | eeprom->magic = AX_EEPROM_MAGIC; | |
448 | ||
ceb02c91 CR |
449 | first_word = eeprom->offset >> 1; |
450 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
451 | ||
452 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
453 | GFP_KERNEL); | |
454 | if (!eeprom_buff) | |
455 | return -ENOMEM; | |
456 | ||
2e55cc72 | 457 | /* ax8817x returns 2 bytes from eeprom on read */ |
ceb02c91 CR |
458 | for (i = first_word; i <= last_word; i++) { |
459 | if (asix_read_cmd(dev, AX_CMD_READ_EEPROM, i, 0, 2, | |
460 | &(eeprom_buff[i - first_word])) < 0) { | |
461 | kfree(eeprom_buff); | |
462 | return -EIO; | |
463 | } | |
2e55cc72 | 464 | } |
ceb02c91 CR |
465 | |
466 | memcpy(data, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); | |
467 | kfree(eeprom_buff); | |
2e55cc72 DB |
468 | return 0; |
469 | } | |
470 | ||
cb7b24cd CR |
471 | int asix_set_eeprom(struct net_device *net, struct ethtool_eeprom *eeprom, |
472 | u8 *data) | |
473 | { | |
474 | struct usbnet *dev = netdev_priv(net); | |
475 | u16 *eeprom_buff; | |
476 | int first_word, last_word; | |
477 | int i; | |
478 | int ret; | |
479 | ||
480 | netdev_dbg(net, "write EEPROM len %d, offset %d, magic 0x%x\n", | |
481 | eeprom->len, eeprom->offset, eeprom->magic); | |
482 | ||
483 | if (eeprom->len == 0) | |
484 | return -EINVAL; | |
485 | ||
486 | if (eeprom->magic != AX_EEPROM_MAGIC) | |
487 | return -EINVAL; | |
488 | ||
489 | first_word = eeprom->offset >> 1; | |
490 | last_word = (eeprom->offset + eeprom->len - 1) >> 1; | |
491 | ||
492 | eeprom_buff = kmalloc(sizeof(u16) * (last_word - first_word + 1), | |
493 | GFP_KERNEL); | |
494 | if (!eeprom_buff) | |
495 | return -ENOMEM; | |
496 | ||
497 | /* align data to 16 bit boundaries, read the missing data from | |
498 | the EEPROM */ | |
499 | if (eeprom->offset & 1) { | |
500 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, first_word, 0, 2, | |
501 | &(eeprom_buff[0])); | |
502 | if (ret < 0) { | |
503 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", first_word); | |
504 | goto free; | |
505 | } | |
506 | } | |
507 | ||
508 | if ((eeprom->offset + eeprom->len) & 1) { | |
509 | ret = asix_read_cmd(dev, AX_CMD_READ_EEPROM, last_word, 0, 2, | |
510 | &(eeprom_buff[last_word - first_word])); | |
511 | if (ret < 0) { | |
512 | netdev_err(net, "Failed to read EEPROM at offset 0x%02x.\n", last_word); | |
513 | goto free; | |
514 | } | |
515 | } | |
516 | ||
517 | memcpy((u8 *)eeprom_buff + (eeprom->offset & 1), data, eeprom->len); | |
518 | ||
519 | /* write data to EEPROM */ | |
520 | ret = asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0x0000, 0, 0, NULL); | |
521 | if (ret < 0) { | |
522 | netdev_err(net, "Failed to enable EEPROM write\n"); | |
523 | goto free; | |
524 | } | |
525 | msleep(20); | |
526 | ||
527 | for (i = first_word; i <= last_word; i++) { | |
528 | netdev_dbg(net, "write to EEPROM at offset 0x%02x, data 0x%04x\n", | |
529 | i, eeprom_buff[i - first_word]); | |
530 | ret = asix_write_cmd(dev, AX_CMD_WRITE_EEPROM, i, | |
531 | eeprom_buff[i - first_word], 0, NULL); | |
532 | if (ret < 0) { | |
533 | netdev_err(net, "Failed to write EEPROM at offset 0x%02x.\n", | |
534 | i); | |
535 | goto free; | |
536 | } | |
537 | msleep(20); | |
538 | } | |
539 | ||
540 | ret = asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0x0000, 0, 0, NULL); | |
541 | if (ret < 0) { | |
542 | netdev_err(net, "Failed to disable EEPROM write\n"); | |
543 | goto free; | |
544 | } | |
545 | ||
546 | ret = 0; | |
547 | free: | |
548 | kfree(eeprom_buff); | |
549 | return ret; | |
550 | } | |
551 | ||
607740bc | 552 | void asix_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) |
2e55cc72 DB |
553 | { |
554 | /* Inherit standard device info */ | |
555 | usbnet_get_drvinfo(net, info); | |
7826d43f JP |
556 | strlcpy(info->driver, DRIVER_NAME, sizeof(info->driver)); |
557 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
ceb02c91 | 558 | info->eedump_len = AX_EEPROM_LEN; |
2e55cc72 DB |
559 | } |
560 | ||
607740bc | 561 | int asix_set_mac_address(struct net_device *net, void *p) |
7f29a3ba JK |
562 | { |
563 | struct usbnet *dev = netdev_priv(net); | |
564 | struct asix_data *data = (struct asix_data *)&dev->data; | |
565 | struct sockaddr *addr = p; | |
566 | ||
567 | if (netif_running(net)) | |
568 | return -EBUSY; | |
569 | if (!is_valid_ether_addr(addr->sa_data)) | |
570 | return -EADDRNOTAVAIL; | |
571 | ||
572 | memcpy(net->dev_addr, addr->sa_data, ETH_ALEN); | |
573 | ||
574 | /* We use the 20 byte dev->data | |
575 | * for our 6 byte mac buffer | |
576 | * to avoid allocating memory that | |
577 | * is tricky to free later */ | |
578 | memcpy(data->mac_addr, addr->sa_data, ETH_ALEN); | |
579 | asix_write_cmd_async(dev, AX_CMD_WRITE_NODE_ID, 0, 0, ETH_ALEN, | |
580 | data->mac_addr); | |
581 | ||
582 | return 0; | |
583 | } |