Commit | Line | Data |
---|---|---|
d0374f4f | 1 | /* |
cabd0e3a | 2 | * Davicom DM96xx USB 10/100Mbps ethernet devices |
d0374f4f PK |
3 | * |
4 | * Peter Korsgaard <jacmet@sunsite.dk> | |
5 | * | |
6 | * This file is licensed under the terms of the GNU General Public License | |
7 | * version 2. This program is licensed "as is" without any warranty of any | |
8 | * kind, whether express or implied. | |
9 | */ | |
10 | ||
11 | //#define DEBUG | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/sched.h> | |
686149f4 | 15 | #include <linux/stddef.h> |
d0374f4f PK |
16 | #include <linux/netdevice.h> |
17 | #include <linux/etherdevice.h> | |
18 | #include <linux/ethtool.h> | |
19 | #include <linux/mii.h> | |
20 | #include <linux/usb.h> | |
21 | #include <linux/crc32.h> | |
3692e94f | 22 | #include <linux/usb/usbnet.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
d0374f4f PK |
24 | |
25 | /* datasheet: | |
98658bc9 | 26 | http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf |
d0374f4f PK |
27 | */ |
28 | ||
29 | /* control requests */ | |
30 | #define DM_READ_REGS 0x00 | |
31 | #define DM_WRITE_REGS 0x01 | |
32 | #define DM_READ_MEMS 0x02 | |
33 | #define DM_WRITE_REG 0x03 | |
34 | #define DM_WRITE_MEMS 0x05 | |
35 | #define DM_WRITE_MEM 0x07 | |
36 | ||
37 | /* registers */ | |
38 | #define DM_NET_CTRL 0x00 | |
39 | #define DM_RX_CTRL 0x05 | |
40 | #define DM_SHARED_CTRL 0x0b | |
41 | #define DM_SHARED_ADDR 0x0c | |
42 | #define DM_SHARED_DATA 0x0d /* low + high */ | |
43 | #define DM_PHY_ADDR 0x10 /* 6 bytes */ | |
44 | #define DM_MCAST_ADDR 0x16 /* 8 bytes */ | |
45 | #define DM_GPR_CTRL 0x1e | |
46 | #define DM_GPR_DATA 0x1f | |
6642f91c PK |
47 | #define DM_CHIP_ID 0x2c |
48 | #define DM_MODE_CTRL 0x91 /* only on dm9620 */ | |
49 | ||
50 | /* chip id values */ | |
51 | #define ID_DM9601 0 | |
52 | #define ID_DM9620 1 | |
d0374f4f PK |
53 | |
54 | #define DM_MAX_MCAST 64 | |
55 | #define DM_MCAST_SIZE 8 | |
56 | #define DM_EEPROM_LEN 256 | |
57 | #define DM_TX_OVERHEAD 2 /* 2 byte header */ | |
58 | #define DM_RX_OVERHEAD 7 /* 3 byte header + 4 byte crc tail */ | |
59 | #define DM_TIMEOUT 1000 | |
60 | ||
d0374f4f PK |
61 | static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data) |
62 | { | |
24b1042c ML |
63 | int err; |
64 | err = usbnet_read_cmd(dev, DM_READ_REGS, | |
65 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
66 | 0, reg, data, length); | |
67 | if(err != length && err >= 0) | |
16d78bc2 | 68 | err = -EINVAL; |
16d78bc2 | 69 | return err; |
d0374f4f PK |
70 | } |
71 | ||
72 | static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value) | |
73 | { | |
74 | return dm_read(dev, reg, 1, value); | |
75 | } | |
76 | ||
77 | static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data) | |
78 | { | |
24b1042c ML |
79 | int err; |
80 | err = usbnet_write_cmd(dev, DM_WRITE_REGS, | |
81 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
82 | 0, reg, data, length); | |
83 | ||
16d78bc2 PK |
84 | if (err >= 0 && err < length) |
85 | err = -EINVAL; | |
16d78bc2 | 86 | return err; |
d0374f4f PK |
87 | } |
88 | ||
89 | static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value) | |
90 | { | |
1b9c3a1b | 91 | return usbnet_write_cmd(dev, DM_WRITE_REG, |
24b1042c ML |
92 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, |
93 | value, reg, NULL, 0); | |
d0374f4f PK |
94 | } |
95 | ||
1b9c3a1b | 96 | static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data) |
d0374f4f | 97 | { |
24b1042c ML |
98 | usbnet_write_cmd_async(dev, DM_WRITE_REGS, |
99 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
1b9c3a1b | 100 | 0, reg, data, length); |
ba734f34 PK |
101 | } |
102 | ||
103 | static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value) | |
104 | { | |
1b9c3a1b TB |
105 | usbnet_write_cmd_async(dev, DM_WRITE_REG, |
106 | USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, | |
107 | value, reg, NULL, 0); | |
d0374f4f PK |
108 | } |
109 | ||
eca1ad82 | 110 | static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value) |
d0374f4f PK |
111 | { |
112 | int ret, i; | |
113 | ||
114 | mutex_lock(&dev->phy_mutex); | |
115 | ||
116 | dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg); | |
117 | dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4); | |
118 | ||
119 | for (i = 0; i < DM_TIMEOUT; i++) { | |
15c8bb12 | 120 | u8 tmp = 0; |
d0374f4f PK |
121 | |
122 | udelay(1); | |
123 | ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp); | |
124 | if (ret < 0) | |
125 | goto out; | |
126 | ||
127 | /* ready */ | |
128 | if ((tmp & 1) == 0) | |
129 | break; | |
130 | } | |
131 | ||
132 | if (i == DM_TIMEOUT) { | |
60b86755 | 133 | netdev_err(dev->net, "%s read timed out!\n", phy ? "phy" : "eeprom"); |
d0374f4f PK |
134 | ret = -EIO; |
135 | goto out; | |
136 | } | |
137 | ||
138 | dm_write_reg(dev, DM_SHARED_CTRL, 0x0); | |
139 | ret = dm_read(dev, DM_SHARED_DATA, 2, value); | |
140 | ||
60b86755 JP |
141 | netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n", |
142 | phy, reg, *value, ret); | |
d0374f4f PK |
143 | |
144 | out: | |
145 | mutex_unlock(&dev->phy_mutex); | |
146 | return ret; | |
147 | } | |
148 | ||
eca1ad82 | 149 | static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value) |
d0374f4f PK |
150 | { |
151 | int ret, i; | |
152 | ||
153 | mutex_lock(&dev->phy_mutex); | |
154 | ||
155 | ret = dm_write(dev, DM_SHARED_DATA, 2, &value); | |
156 | if (ret < 0) | |
157 | goto out; | |
158 | ||
159 | dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg); | |
e9162ab1 | 160 | dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12); |
d0374f4f PK |
161 | |
162 | for (i = 0; i < DM_TIMEOUT; i++) { | |
15c8bb12 | 163 | u8 tmp = 0; |
d0374f4f PK |
164 | |
165 | udelay(1); | |
166 | ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp); | |
167 | if (ret < 0) | |
168 | goto out; | |
169 | ||
170 | /* ready */ | |
171 | if ((tmp & 1) == 0) | |
172 | break; | |
173 | } | |
174 | ||
175 | if (i == DM_TIMEOUT) { | |
60b86755 | 176 | netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom"); |
d0374f4f PK |
177 | ret = -EIO; |
178 | goto out; | |
179 | } | |
180 | ||
181 | dm_write_reg(dev, DM_SHARED_CTRL, 0x0); | |
182 | ||
183 | out: | |
184 | mutex_unlock(&dev->phy_mutex); | |
185 | return ret; | |
186 | } | |
187 | ||
188 | static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value) | |
189 | { | |
190 | return dm_read_shared_word(dev, 0, offset, value); | |
191 | } | |
192 | ||
193 | ||
194 | ||
195 | static int dm9601_get_eeprom_len(struct net_device *dev) | |
196 | { | |
197 | return DM_EEPROM_LEN; | |
198 | } | |
199 | ||
200 | static int dm9601_get_eeprom(struct net_device *net, | |
201 | struct ethtool_eeprom *eeprom, u8 * data) | |
202 | { | |
203 | struct usbnet *dev = netdev_priv(net); | |
eca1ad82 | 204 | __le16 *ebuf = (__le16 *) data; |
d0374f4f PK |
205 | int i; |
206 | ||
207 | /* access is 16bit */ | |
208 | if ((eeprom->offset % 2) || (eeprom->len % 2)) | |
209 | return -EINVAL; | |
210 | ||
211 | for (i = 0; i < eeprom->len / 2; i++) { | |
212 | if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i, | |
213 | &ebuf[i]) < 0) | |
214 | return -EINVAL; | |
215 | } | |
216 | return 0; | |
217 | } | |
218 | ||
219 | static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc) | |
220 | { | |
221 | struct usbnet *dev = netdev_priv(netdev); | |
222 | ||
eca1ad82 | 223 | __le16 res; |
d0374f4f PK |
224 | |
225 | if (phy_id) { | |
60b86755 | 226 | netdev_dbg(dev->net, "Only internal phy supported\n"); |
d0374f4f PK |
227 | return 0; |
228 | } | |
229 | ||
230 | dm_read_shared_word(dev, 1, loc, &res); | |
231 | ||
60b86755 JP |
232 | netdev_dbg(dev->net, |
233 | "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n", | |
234 | phy_id, loc, le16_to_cpu(res)); | |
d0374f4f PK |
235 | |
236 | return le16_to_cpu(res); | |
237 | } | |
238 | ||
239 | static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc, | |
240 | int val) | |
241 | { | |
242 | struct usbnet *dev = netdev_priv(netdev); | |
eca1ad82 | 243 | __le16 res = cpu_to_le16(val); |
d0374f4f PK |
244 | |
245 | if (phy_id) { | |
60b86755 | 246 | netdev_dbg(dev->net, "Only internal phy supported\n"); |
d0374f4f PK |
247 | return; |
248 | } | |
249 | ||
60b86755 JP |
250 | netdev_dbg(dev->net, "dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n", |
251 | phy_id, loc, val); | |
d0374f4f PK |
252 | |
253 | dm_write_shared_word(dev, 1, loc, res); | |
254 | } | |
255 | ||
256 | static void dm9601_get_drvinfo(struct net_device *net, | |
257 | struct ethtool_drvinfo *info) | |
258 | { | |
259 | /* Inherit standard device info */ | |
260 | usbnet_get_drvinfo(net, info); | |
261 | info->eedump_len = DM_EEPROM_LEN; | |
262 | } | |
263 | ||
264 | static u32 dm9601_get_link(struct net_device *net) | |
265 | { | |
266 | struct usbnet *dev = netdev_priv(net); | |
267 | ||
268 | return mii_link_ok(&dev->mii); | |
269 | } | |
270 | ||
271 | static int dm9601_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
272 | { | |
273 | struct usbnet *dev = netdev_priv(net); | |
274 | ||
275 | return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); | |
276 | } | |
277 | ||
0fc0b732 | 278 | static const struct ethtool_ops dm9601_ethtool_ops = { |
d0374f4f PK |
279 | .get_drvinfo = dm9601_get_drvinfo, |
280 | .get_link = dm9601_get_link, | |
281 | .get_msglevel = usbnet_get_msglevel, | |
282 | .set_msglevel = usbnet_set_msglevel, | |
283 | .get_eeprom_len = dm9601_get_eeprom_len, | |
284 | .get_eeprom = dm9601_get_eeprom, | |
285 | .get_settings = usbnet_get_settings, | |
286 | .set_settings = usbnet_set_settings, | |
287 | .nway_reset = usbnet_nway_reset, | |
288 | }; | |
289 | ||
290 | static void dm9601_set_multicast(struct net_device *net) | |
291 | { | |
292 | struct usbnet *dev = netdev_priv(net); | |
293 | /* We use the 20 byte dev->data for our 8 byte filter buffer | |
294 | * to avoid allocating memory that is tricky to free later */ | |
295 | u8 *hashes = (u8 *) & dev->data; | |
33eddedb | 296 | u8 rx_ctl = 0x31; |
d0374f4f PK |
297 | |
298 | memset(hashes, 0x00, DM_MCAST_SIZE); | |
299 | hashes[DM_MCAST_SIZE - 1] |= 0x80; /* broadcast address */ | |
300 | ||
301 | if (net->flags & IFF_PROMISC) { | |
302 | rx_ctl |= 0x02; | |
2cc04d27 JP |
303 | } else if (net->flags & IFF_ALLMULTI || |
304 | netdev_mc_count(net) > DM_MAX_MCAST) { | |
bf0ea638 | 305 | rx_ctl |= 0x08; |
2cc04d27 | 306 | } else if (!netdev_mc_empty(net)) { |
22bedad3 | 307 | struct netdev_hw_addr *ha; |
d0374f4f | 308 | |
22bedad3 JP |
309 | netdev_for_each_mc_addr(ha, net) { |
310 | u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26; | |
d0374f4f PK |
311 | hashes[crc >> 3] |= 1 << (crc & 0x7); |
312 | } | |
313 | } | |
314 | ||
315 | dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes); | |
316 | dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl); | |
317 | } | |
318 | ||
4b9f8ec6 WF |
319 | static void __dm9601_set_mac_address(struct usbnet *dev) |
320 | { | |
321 | dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr); | |
322 | } | |
323 | ||
753dcfee PK |
324 | static int dm9601_set_mac_address(struct net_device *net, void *p) |
325 | { | |
326 | struct sockaddr *addr = p; | |
327 | struct usbnet *dev = netdev_priv(net); | |
328 | ||
f52deb0e WF |
329 | if (!is_valid_ether_addr(addr->sa_data)) { |
330 | dev_err(&net->dev, "not setting invalid mac address %pM\n", | |
331 | addr->sa_data); | |
753dcfee | 332 | return -EINVAL; |
f52deb0e | 333 | } |
753dcfee PK |
334 | |
335 | memcpy(net->dev_addr, addr->sa_data, net->addr_len); | |
4b9f8ec6 | 336 | __dm9601_set_mac_address(dev); |
753dcfee PK |
337 | |
338 | return 0; | |
339 | } | |
340 | ||
fe85ff82 SH |
341 | static const struct net_device_ops dm9601_netdev_ops = { |
342 | .ndo_open = usbnet_open, | |
343 | .ndo_stop = usbnet_stop, | |
344 | .ndo_start_xmit = usbnet_start_xmit, | |
345 | .ndo_tx_timeout = usbnet_tx_timeout, | |
346 | .ndo_change_mtu = usbnet_change_mtu, | |
347 | .ndo_validate_addr = eth_validate_addr, | |
348 | .ndo_do_ioctl = dm9601_ioctl, | |
afc4b13d | 349 | .ndo_set_rx_mode = dm9601_set_multicast, |
fe85ff82 SH |
350 | .ndo_set_mac_address = dm9601_set_mac_address, |
351 | }; | |
352 | ||
d0374f4f PK |
353 | static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf) |
354 | { | |
355 | int ret; | |
6642f91c | 356 | u8 mac[ETH_ALEN], id; |
d0374f4f PK |
357 | |
358 | ret = usbnet_get_endpoints(dev, intf); | |
359 | if (ret) | |
360 | goto out; | |
361 | ||
fe85ff82 | 362 | dev->net->netdev_ops = &dm9601_netdev_ops; |
d0374f4f PK |
363 | dev->net->ethtool_ops = &dm9601_ethtool_ops; |
364 | dev->net->hard_header_len += DM_TX_OVERHEAD; | |
365 | dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len; | |
407900cf PK |
366 | |
367 | /* dm9620/21a require room for 4 byte padding, even in dm9601 | |
368 | * mode, so we need +1 to be able to receive full size | |
369 | * ethernet frames. | |
370 | */ | |
371 | dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1; | |
d0374f4f PK |
372 | |
373 | dev->mii.dev = dev->net; | |
374 | dev->mii.mdio_read = dm9601_mdio_read; | |
375 | dev->mii.mdio_write = dm9601_mdio_write; | |
376 | dev->mii.phy_id_mask = 0x1f; | |
377 | dev->mii.reg_num_mask = 0x1f; | |
378 | ||
379 | /* reset */ | |
b8f59586 | 380 | dm_write_reg(dev, DM_NET_CTRL, 1); |
d0374f4f PK |
381 | udelay(20); |
382 | ||
383 | /* read MAC */ | |
20f10aa0 | 384 | if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) { |
d0374f4f PK |
385 | printk(KERN_ERR "Error reading MAC address\n"); |
386 | ret = -ENODEV; | |
387 | goto out; | |
388 | } | |
389 | ||
20f10aa0 WF |
390 | /* |
391 | * Overwrite the auto-generated address only with good ones. | |
392 | */ | |
393 | if (is_valid_ether_addr(mac)) | |
394 | memcpy(dev->net->dev_addr, mac, ETH_ALEN); | |
f52deb0e WF |
395 | else { |
396 | printk(KERN_WARNING | |
397 | "dm9601: No valid MAC address in EEPROM, using %pM\n", | |
398 | dev->net->dev_addr); | |
4b9f8ec6 | 399 | __dm9601_set_mac_address(dev); |
f52deb0e | 400 | } |
20f10aa0 | 401 | |
6642f91c PK |
402 | if (dm_read_reg(dev, DM_CHIP_ID, &id) < 0) { |
403 | netdev_err(dev->net, "Error reading chip ID\n"); | |
404 | ret = -ENODEV; | |
405 | goto out; | |
406 | } | |
407 | ||
408 | /* put dm9620 devices in dm9601 mode */ | |
409 | if (id == ID_DM9620) { | |
410 | u8 mode; | |
411 | ||
412 | if (dm_read_reg(dev, DM_MODE_CTRL, &mode) < 0) { | |
413 | netdev_err(dev->net, "Error reading MODE_CTRL\n"); | |
414 | ret = -ENODEV; | |
415 | goto out; | |
416 | } | |
417 | dm_write_reg(dev, DM_MODE_CTRL, mode & 0x7f); | |
418 | } | |
419 | ||
d0374f4f PK |
420 | /* power up phy */ |
421 | dm_write_reg(dev, DM_GPR_CTRL, 1); | |
422 | dm_write_reg(dev, DM_GPR_DATA, 0); | |
423 | ||
424 | /* receive broadcast packets */ | |
425 | dm9601_set_multicast(dev->net); | |
426 | ||
427 | dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); | |
428 | dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, | |
429 | ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); | |
430 | mii_nway_restart(&dev->mii); | |
431 | ||
432 | out: | |
433 | return ret; | |
434 | } | |
435 | ||
436 | static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb) | |
437 | { | |
438 | u8 status; | |
439 | int len; | |
440 | ||
441 | /* format: | |
61189c78 PK |
442 | b1: rx status |
443 | b2: packet length (incl crc) low | |
444 | b3: packet length (incl crc) high | |
445 | b4..n-4: packet data | |
d0374f4f PK |
446 | bn-3..bn: ethernet crc |
447 | */ | |
448 | ||
449 | if (unlikely(skb->len < DM_RX_OVERHEAD)) { | |
450 | dev_err(&dev->udev->dev, "unexpected tiny rx frame\n"); | |
451 | return 0; | |
452 | } | |
453 | ||
454 | status = skb->data[0]; | |
455 | len = (skb->data[1] | (skb->data[2] << 8)) - 4; | |
456 | ||
457 | if (unlikely(status & 0xbf)) { | |
9612101c HX |
458 | if (status & 0x01) dev->net->stats.rx_fifo_errors++; |
459 | if (status & 0x02) dev->net->stats.rx_crc_errors++; | |
460 | if (status & 0x04) dev->net->stats.rx_frame_errors++; | |
461 | if (status & 0x20) dev->net->stats.rx_missed_errors++; | |
462 | if (status & 0x90) dev->net->stats.rx_length_errors++; | |
d0374f4f PK |
463 | return 0; |
464 | } | |
465 | ||
466 | skb_pull(skb, 3); | |
467 | skb_trim(skb, len); | |
468 | ||
469 | return 1; | |
470 | } | |
471 | ||
472 | static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb, | |
473 | gfp_t flags) | |
474 | { | |
4263c86d | 475 | int len, pad; |
d0374f4f PK |
476 | |
477 | /* format: | |
61189c78 PK |
478 | b1: packet length low |
479 | b2: packet length high | |
d0374f4f PK |
480 | b3..n: packet data |
481 | */ | |
482 | ||
4263c86d PK |
483 | len = skb->len + DM_TX_OVERHEAD; |
484 | ||
485 | /* workaround for dm962x errata with tx fifo getting out of | |
486 | * sync if a USB bulk transfer retry happens right after a | |
487 | * packet with odd / maxpacket length by adding up to 3 bytes | |
488 | * padding. | |
489 | */ | |
490 | while ((len & 1) || !(len % dev->maxpacket)) | |
491 | len++; | |
23de559b | 492 | |
4263c86d PK |
493 | len -= DM_TX_OVERHEAD; /* hw header doesn't count as part of length */ |
494 | pad = len - skb->len; | |
495 | ||
496 | if (skb_headroom(skb) < DM_TX_OVERHEAD || skb_tailroom(skb) < pad) { | |
d0374f4f PK |
497 | struct sk_buff *skb2; |
498 | ||
4263c86d | 499 | skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, pad, flags); |
d0374f4f PK |
500 | dev_kfree_skb_any(skb); |
501 | skb = skb2; | |
502 | if (!skb) | |
503 | return NULL; | |
504 | } | |
505 | ||
506 | __skb_push(skb, DM_TX_OVERHEAD); | |
507 | ||
4263c86d PK |
508 | if (pad) { |
509 | memset(skb->data + skb->len, 0, pad); | |
510 | __skb_put(skb, pad); | |
511 | } | |
d0374f4f PK |
512 | |
513 | skb->data[0] = len; | |
514 | skb->data[1] = len >> 8; | |
515 | ||
516 | return skb; | |
517 | } | |
518 | ||
519 | static void dm9601_status(struct usbnet *dev, struct urb *urb) | |
520 | { | |
521 | int link; | |
522 | u8 *buf; | |
523 | ||
524 | /* format: | |
525 | b0: net status | |
526 | b1: tx status 1 | |
527 | b2: tx status 2 | |
528 | b3: rx status | |
529 | b4: rx overflow | |
530 | b5: rx count | |
531 | b6: tx count | |
532 | b7: gpr | |
533 | */ | |
534 | ||
535 | if (urb->actual_length < 8) | |
536 | return; | |
537 | ||
538 | buf = urb->transfer_buffer; | |
539 | ||
540 | link = !!(buf[0] & 0x40); | |
541 | if (netif_carrier_ok(dev->net) != link) { | |
c10b1710 | 542 | usbnet_link_change(dev, link, 1); |
60b86755 | 543 | netdev_dbg(dev->net, "Link Status is: %d\n", link); |
d0374f4f PK |
544 | } |
545 | } | |
546 | ||
547 | static int dm9601_link_reset(struct usbnet *dev) | |
548 | { | |
8ae6daca | 549 | struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET }; |
d0374f4f PK |
550 | |
551 | mii_check_media(&dev->mii, 1, 1); | |
552 | mii_ethtool_gset(&dev->mii, &ecmd); | |
553 | ||
8ae6daca DD |
554 | netdev_dbg(dev->net, "link_reset() speed: %u duplex: %d\n", |
555 | ethtool_cmd_speed(&ecmd), ecmd.duplex); | |
d0374f4f PK |
556 | |
557 | return 0; | |
558 | } | |
559 | ||
560 | static const struct driver_info dm9601_info = { | |
cabd0e3a | 561 | .description = "Davicom DM96xx USB 10/100 Ethernet", |
37e8273c | 562 | .flags = FLAG_ETHER | FLAG_LINK_INTR, |
d0374f4f PK |
563 | .bind = dm9601_bind, |
564 | .rx_fixup = dm9601_rx_fixup, | |
565 | .tx_fixup = dm9601_tx_fixup, | |
566 | .status = dm9601_status, | |
567 | .link_reset = dm9601_link_reset, | |
568 | .reset = dm9601_link_reset, | |
569 | }; | |
570 | ||
571 | static const struct usb_device_id products[] = { | |
6438ac26 YH |
572 | { |
573 | USB_DEVICE(0x07aa, 0x9601), /* Corega FEther USB-TXC */ | |
574 | .driver_info = (unsigned long)&dm9601_info, | |
575 | }, | |
d0374f4f PK |
576 | { |
577 | USB_DEVICE(0x0a46, 0x9601), /* Davicom USB-100 */ | |
578 | .driver_info = (unsigned long)&dm9601_info, | |
579 | }, | |
6dc477f3 JD |
580 | { |
581 | USB_DEVICE(0x0a46, 0x6688), /* ZT6688 USB NIC */ | |
582 | .driver_info = (unsigned long)&dm9601_info, | |
583 | }, | |
584 | { | |
585 | USB_DEVICE(0x0a46, 0x0268), /* ShanTou ST268 USB NIC */ | |
586 | .driver_info = (unsigned long)&dm9601_info, | |
587 | }, | |
a06da754 PK |
588 | { |
589 | USB_DEVICE(0x0a46, 0x8515), /* ADMtek ADM8515 USB NIC */ | |
590 | .driver_info = (unsigned long)&dm9601_info, | |
591 | }, | |
b47b4b22 PK |
592 | { |
593 | USB_DEVICE(0x0a47, 0x9601), /* Hirose USB-100 */ | |
a1a69c8d PK |
594 | .driver_info = (unsigned long)&dm9601_info, |
595 | }, | |
596 | { | |
597 | USB_DEVICE(0x0fe6, 0x8101), /* DM9601 USB to Fast Ethernet Adapter */ | |
b47b4b22 PK |
598 | .driver_info = (unsigned long)&dm9601_info, |
599 | }, | |
67158ceb SH |
600 | { |
601 | USB_DEVICE(0x0fe6, 0x9700), /* DM9601 USB to Fast Ethernet Adapter */ | |
602 | .driver_info = (unsigned long)&dm9601_info, | |
603 | }, | |
06b71b65 JK |
604 | { |
605 | USB_DEVICE(0x0a46, 0x9000), /* DM9000E */ | |
606 | .driver_info = (unsigned long)&dm9601_info, | |
607 | }, | |
6642f91c PK |
608 | { |
609 | USB_DEVICE(0x0a46, 0x9620), /* DM9620 USB to Fast Ethernet Adapter */ | |
610 | .driver_info = (unsigned long)&dm9601_info, | |
611 | }, | |
3b387892 PK |
612 | { |
613 | USB_DEVICE(0x0a46, 0x9621), /* DM9621A USB to Fast Ethernet Adapter */ | |
614 | .driver_info = (unsigned long)&dm9601_info, | |
615 | }, | |
7c4b5175 PK |
616 | { |
617 | USB_DEVICE(0x0a46, 0x9622), /* DM9622 USB to Fast Ethernet Adapter */ | |
618 | .driver_info = (unsigned long)&dm9601_info, | |
619 | }, | |
620 | { | |
621 | USB_DEVICE(0x0a46, 0x0269), /* DM962OA USB to Fast Ethernet Adapter */ | |
622 | .driver_info = (unsigned long)&dm9601_info, | |
623 | }, | |
624 | { | |
625 | USB_DEVICE(0x0a46, 0x1269), /* DM9621A USB to Fast Ethernet Adapter */ | |
626 | .driver_info = (unsigned long)&dm9601_info, | |
627 | }, | |
d0374f4f PK |
628 | {}, // END |
629 | }; | |
630 | ||
631 | MODULE_DEVICE_TABLE(usb, products); | |
632 | ||
633 | static struct usb_driver dm9601_driver = { | |
634 | .name = "dm9601", | |
635 | .id_table = products, | |
636 | .probe = usbnet_probe, | |
637 | .disconnect = usbnet_disconnect, | |
638 | .suspend = usbnet_suspend, | |
639 | .resume = usbnet_resume, | |
e1f12eb6 | 640 | .disable_hub_initiated_lpm = 1, |
d0374f4f PK |
641 | }; |
642 | ||
d632eb1b | 643 | module_usb_driver(dm9601_driver); |
d0374f4f PK |
644 | |
645 | MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>"); | |
cabd0e3a | 646 | MODULE_DESCRIPTION("Davicom DM96xx USB 10/100 ethernet devices"); |
d0374f4f | 647 | MODULE_LICENSE("GPL"); |