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Commit | Line | Data |
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1da177e4 | 1 | /* |
323b3496 | 2 | * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com) |
1da177e4 LT |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * ChangeLog: | |
9 | * .... Most of the time spent on reading sources & docs. | |
10 | * v0.2.x First official release for the Linux kernel. | |
11 | * v0.3.0 Beutified and structured, some bugs fixed. | |
12 | * v0.3.x URBifying bulk requests and bugfixing. First relatively | |
13 | * stable release. Still can touch device's registers only | |
14 | * from top-halves. | |
15 | * v0.4.0 Control messages remained unurbified are now URBs. | |
16 | * Now we can touch the HW at any time. | |
17 | * v0.4.9 Control urbs again use process context to wait. Argh... | |
18 | * Some long standing bugs (enable_net_traffic) fixed. | |
19 | * Also nasty trick about resubmiting control urb from | |
20 | * interrupt context used. Please let me know how it | |
21 | * behaves. Pegasus II support added since this version. | |
22 | * TODO: suppressing HCD warnings spewage on disconnect. | |
23 | * v0.4.13 Ethernet address is now set at probe(), not at open() | |
5a9dbfe0 | 24 | * time as this seems to break dhcpd. |
1da177e4 LT |
25 | * v0.5.0 branch to 2.5.x kernels |
26 | * v0.5.1 ethtool support added | |
27 | * v0.5.5 rx socket buffers are in a pool and the their allocation | |
5a9dbfe0 | 28 | * is out of the interrupt routine. |
323b3496 PM |
29 | * ... |
30 | * v0.9.3 simplified [get|set]_register(s), async update registers | |
31 | * logic revisited, receive skb_pool removed. | |
1da177e4 LT |
32 | */ |
33 | ||
1da177e4 LT |
34 | #include <linux/sched.h> |
35 | #include <linux/slab.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/etherdevice.h> | |
40 | #include <linux/ethtool.h> | |
41 | #include <linux/mii.h> | |
42 | #include <linux/usb.h> | |
43 | #include <linux/module.h> | |
44 | #include <asm/byteorder.h> | |
7c0f6ba6 | 45 | #include <linux/uaccess.h> |
1da177e4 LT |
46 | #include "pegasus.h" |
47 | ||
48 | /* | |
49 | * Version Information | |
50 | */ | |
323b3496 PM |
51 | #define DRIVER_VERSION "v0.9.3 (2013/04/25)" |
52 | #define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>" | |
1da177e4 LT |
53 | #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" |
54 | ||
55 | static const char driver_name[] = "pegasus"; | |
56 | ||
57 | #undef PEGASUS_WRITE_EEPROM | |
58 | #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ | |
59 | BMSR_100FULL | BMSR_ANEGCAPABLE) | |
60 | ||
eb939922 RR |
61 | static bool loopback; |
62 | static bool mii_mode; | |
5a9dbfe0 | 63 | static char *devid; |
1da177e4 LT |
64 | |
65 | static struct usb_eth_dev usb_dev_id[] = { | |
66 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
67 | {.name = pn, .vendor = vid, .device = pid, .private = flags}, | |
ab854b24 CR |
68 | #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ |
69 | PEGASUS_DEV(pn, vid, pid, flags) | |
1da177e4 LT |
70 | #include "pegasus.h" |
71 | #undef PEGASUS_DEV | |
ab854b24 | 72 | #undef PEGASUS_DEV_CLASS |
a4f81a61 | 73 | {NULL, 0, 0, 0}, |
1da177e4 LT |
74 | {NULL, 0, 0, 0} |
75 | }; | |
76 | ||
77 | static struct usb_device_id pegasus_ids[] = { | |
78 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
79 | {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, | |
ab854b24 CR |
80 | /* |
81 | * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product | |
82 | * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to | |
83 | * ignore adaptors belonging to the "Wireless" class 0xE0. For this one | |
84 | * case anyway, seeing as the pegasus is for "Wired" adaptors. | |
85 | */ | |
86 | #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ | |
87 | {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \ | |
88 | .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass}, | |
1da177e4 LT |
89 | #include "pegasus.h" |
90 | #undef PEGASUS_DEV | |
ab854b24 | 91 | #undef PEGASUS_DEV_CLASS |
a4f81a61 | 92 | {}, |
1da177e4 LT |
93 | {} |
94 | }; | |
95 | ||
96 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
97 | MODULE_DESCRIPTION(DRIVER_DESC); | |
98 | MODULE_LICENSE("GPL"); | |
99 | module_param(loopback, bool, 0); | |
100 | module_param(mii_mode, bool, 0); | |
a4f81a61 | 101 | module_param(devid, charp, 0); |
1da177e4 LT |
102 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); |
103 | MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); | |
a4f81a61 | 104 | MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); |
1da177e4 LT |
105 | |
106 | /* use ethtool to change the level for any given device */ | |
107 | static int msg_level = -1; | |
5a9dbfe0 NK |
108 | module_param(msg_level, int, 0); |
109 | MODULE_PARM_DESC(msg_level, "Override default message level"); | |
1da177e4 LT |
110 | |
111 | MODULE_DEVICE_TABLE(usb, pegasus_ids); | |
8cb89571 | 112 | static const struct net_device_ops pegasus_netdev_ops; |
1da177e4 | 113 | |
323b3496 PM |
114 | /*****/ |
115 | ||
116 | static void async_ctrl_callback(struct urb *urb) | |
1da177e4 | 117 | { |
323b3496 | 118 | struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; |
c94cb314 | 119 | int status = urb->status; |
1da177e4 | 120 | |
323b3496 PM |
121 | if (status < 0) |
122 | dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status); | |
123 | kfree(req); | |
124 | usb_free_urb(urb); | |
1da177e4 LT |
125 | } |
126 | ||
323b3496 | 127 | static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data) |
1da177e4 | 128 | { |
5593523f | 129 | u8 *buf; |
1da177e4 | 130 | int ret; |
1da177e4 | 131 | |
5593523f BH |
132 | buf = kmalloc(size, GFP_NOIO); |
133 | if (!buf) | |
134 | return -ENOMEM; | |
135 | ||
323b3496 PM |
136 | ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0), |
137 | PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0, | |
5593523f | 138 | indx, buf, size, 1000); |
323b3496 PM |
139 | if (ret < 0) |
140 | netif_dbg(pegasus, drv, pegasus->net, | |
141 | "%s returned %d\n", __func__, ret); | |
5593523f BH |
142 | else if (ret <= size) |
143 | memcpy(data, buf, ret); | |
144 | kfree(buf); | |
1da177e4 LT |
145 | return ret; |
146 | } | |
147 | ||
5593523f BH |
148 | static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, |
149 | const void *data) | |
1da177e4 | 150 | { |
5593523f | 151 | u8 *buf; |
1da177e4 | 152 | int ret; |
1da177e4 | 153 | |
5593523f BH |
154 | buf = kmemdup(data, size, GFP_NOIO); |
155 | if (!buf) | |
156 | return -ENOMEM; | |
157 | ||
323b3496 PM |
158 | ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), |
159 | PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0, | |
5593523f | 160 | indx, buf, size, 100); |
323b3496 PM |
161 | if (ret < 0) |
162 | netif_dbg(pegasus, drv, pegasus->net, | |
163 | "%s returned %d\n", __func__, ret); | |
5593523f | 164 | kfree(buf); |
1da177e4 LT |
165 | return ret; |
166 | } | |
167 | ||
5a9dbfe0 | 168 | static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data) |
1da177e4 | 169 | { |
5593523f | 170 | u8 *buf; |
1da177e4 | 171 | int ret; |
1da177e4 | 172 | |
5593523f BH |
173 | buf = kmemdup(&data, 1, GFP_NOIO); |
174 | if (!buf) | |
175 | return -ENOMEM; | |
176 | ||
323b3496 PM |
177 | ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), |
178 | PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data, | |
5593523f | 179 | indx, buf, 1, 1000); |
323b3496 PM |
180 | if (ret < 0) |
181 | netif_dbg(pegasus, drv, pegasus->net, | |
182 | "%s returned %d\n", __func__, ret); | |
5593523f | 183 | kfree(buf); |
1da177e4 LT |
184 | return ret; |
185 | } | |
186 | ||
5a9dbfe0 | 187 | static int update_eth_regs_async(pegasus_t *pegasus) |
1da177e4 | 188 | { |
323b3496 PM |
189 | int ret = -ENOMEM; |
190 | struct urb *async_urb; | |
191 | struct usb_ctrlrequest *req; | |
1da177e4 | 192 | |
323b3496 PM |
193 | req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); |
194 | if (req == NULL) | |
195 | return ret; | |
1da177e4 | 196 | |
323b3496 PM |
197 | async_urb = usb_alloc_urb(0, GFP_ATOMIC); |
198 | if (async_urb == NULL) { | |
199 | kfree(req); | |
200 | return ret; | |
201 | } | |
202 | req->bRequestType = PEGASUS_REQT_WRITE; | |
203 | req->bRequest = PEGASUS_REQ_SET_REGS; | |
204 | req->wValue = cpu_to_le16(0); | |
205 | req->wIndex = cpu_to_le16(EthCtrl0); | |
206 | req->wLength = cpu_to_le16(3); | |
207 | ||
208 | usb_fill_control_urb(async_urb, pegasus->usb, | |
209 | usb_sndctrlpipe(pegasus->usb, 0), (void *)req, | |
210 | pegasus->eth_regs, 3, async_ctrl_callback, req); | |
211 | ||
212 | ret = usb_submit_urb(async_urb, GFP_ATOMIC); | |
213 | if (ret) { | |
955a2608 DB |
214 | if (ret == -ENODEV) |
215 | netif_device_detach(pegasus->net); | |
a475f603 | 216 | netif_err(pegasus, drv, pegasus->net, |
323b3496 | 217 | "%s returned %d\n", __func__, ret); |
955a2608 | 218 | } |
1da177e4 LT |
219 | return ret; |
220 | } | |
221 | ||
2bd64701 | 222 | static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd) |
1da177e4 LT |
223 | { |
224 | int i; | |
225 | __u8 data[4] = { phy, 0, 0, indx }; | |
226 | __le16 regdi; | |
2bd64701 | 227 | int ret = -ETIMEDOUT; |
1da177e4 | 228 | |
2bd64701 PM |
229 | if (cmd & PHY_WRITE) { |
230 | __le16 *t = (__le16 *) & data[1]; | |
231 | *t = cpu_to_le16(*regd); | |
232 | } | |
233 | set_register(p, PhyCtrl, 0); | |
234 | set_registers(p, PhyAddr, sizeof(data), data); | |
235 | set_register(p, PhyCtrl, (indx | cmd)); | |
1da177e4 | 236 | for (i = 0; i < REG_TIMEOUT; i++) { |
2bd64701 PM |
237 | ret = get_registers(p, PhyCtrl, 1, data); |
238 | if (ret < 0) | |
7e713b82 | 239 | goto fail; |
1da177e4 LT |
240 | if (data[0] & PHY_DONE) |
241 | break; | |
242 | } | |
a475f603 JP |
243 | if (i >= REG_TIMEOUT) |
244 | goto fail; | |
2bd64701 PM |
245 | if (cmd & PHY_READ) { |
246 | ret = get_registers(p, PhyData, 2, ®di); | |
247 | *regd = le16_to_cpu(regdi); | |
248 | return ret; | |
249 | } | |
250 | return 0; | |
251 | fail: | |
252 | netif_dbg(p, drv, p->net, "%s failed\n", __func__); | |
a475f603 | 253 | return ret; |
2bd64701 | 254 | } |
a475f603 | 255 | |
2bd64701 PM |
256 | /* Returns non-negative int on success, error on failure */ |
257 | static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) | |
258 | { | |
259 | return __mii_op(pegasus, phy, indx, regd, PHY_READ); | |
260 | } | |
1da177e4 | 261 | |
2bd64701 PM |
262 | /* Returns zero on success, error on failure */ |
263 | static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) | |
264 | { | |
265 | return __mii_op(pegasus, phy, indx, regd, PHY_WRITE); | |
1da177e4 LT |
266 | } |
267 | ||
268 | static int mdio_read(struct net_device *dev, int phy_id, int loc) | |
269 | { | |
8739cfef | 270 | pegasus_t *pegasus = netdev_priv(dev); |
1da177e4 LT |
271 | u16 res; |
272 | ||
273 | read_mii_word(pegasus, phy_id, loc, &res); | |
274 | return (int)res; | |
275 | } | |
276 | ||
1da177e4 LT |
277 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) |
278 | { | |
8739cfef | 279 | pegasus_t *pegasus = netdev_priv(dev); |
3d64fc70 | 280 | u16 data = val; |
1da177e4 | 281 | |
3d64fc70 | 282 | write_mii_word(pegasus, phy_id, loc, &data); |
1da177e4 LT |
283 | } |
284 | ||
5a9dbfe0 | 285 | static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) |
1da177e4 LT |
286 | { |
287 | int i; | |
288 | __u8 tmp; | |
289 | __le16 retdatai; | |
290 | int ret; | |
291 | ||
4a1728a2 PM |
292 | set_register(pegasus, EpromCtrl, 0); |
293 | set_register(pegasus, EpromOffset, index); | |
294 | set_register(pegasus, EpromCtrl, EPROM_READ); | |
1da177e4 LT |
295 | |
296 | for (i = 0; i < REG_TIMEOUT; i++) { | |
297 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
298 | if (tmp & EPROM_DONE) | |
299 | break; | |
7e713b82 DB |
300 | if (ret == -ESHUTDOWN) |
301 | goto fail; | |
1da177e4 | 302 | } |
a475f603 JP |
303 | if (i >= REG_TIMEOUT) |
304 | goto fail; | |
305 | ||
306 | ret = get_registers(pegasus, EpromData, 2, &retdatai); | |
307 | *retdata = le16_to_cpu(retdatai); | |
308 | return ret; | |
1da177e4 | 309 | |
7e713b82 | 310 | fail: |
a475f603 | 311 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 312 | return -ETIMEDOUT; |
1da177e4 LT |
313 | } |
314 | ||
315 | #ifdef PEGASUS_WRITE_EEPROM | |
5a9dbfe0 | 316 | static inline void enable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
317 | { |
318 | __u8 tmp; | |
1da177e4 | 319 | |
4a1728a2 PM |
320 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
321 | set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); | |
1da177e4 LT |
322 | } |
323 | ||
5a9dbfe0 | 324 | static inline void disable_eprom_write(pegasus_t *pegasus) |
1da177e4 LT |
325 | { |
326 | __u8 tmp; | |
1da177e4 | 327 | |
4a1728a2 PM |
328 | get_registers(pegasus, EthCtrl2, 1, &tmp); |
329 | set_register(pegasus, EpromCtrl, 0); | |
330 | set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); | |
1da177e4 LT |
331 | } |
332 | ||
5a9dbfe0 | 333 | static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) |
1da177e4 LT |
334 | { |
335 | int i; | |
336 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; | |
337 | int ret; | |
e3453f63 | 338 | __le16 le_data = cpu_to_le16(data); |
1da177e4 | 339 | |
4a1728a2 | 340 | set_registers(pegasus, EpromOffset, 4, d); |
1da177e4 | 341 | enable_eprom_write(pegasus); |
4a1728a2 | 342 | set_register(pegasus, EpromOffset, index); |
e3453f63 | 343 | set_registers(pegasus, EpromData, 2, &le_data); |
4a1728a2 | 344 | set_register(pegasus, EpromCtrl, EPROM_WRITE); |
1da177e4 LT |
345 | |
346 | for (i = 0; i < REG_TIMEOUT; i++) { | |
347 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
7e713b82 DB |
348 | if (ret == -ESHUTDOWN) |
349 | goto fail; | |
1da177e4 LT |
350 | if (tmp & EPROM_DONE) |
351 | break; | |
352 | } | |
353 | disable_eprom_write(pegasus); | |
a475f603 JP |
354 | if (i >= REG_TIMEOUT) |
355 | goto fail; | |
356 | ||
357 | return ret; | |
358 | ||
7e713b82 | 359 | fail: |
a475f603 | 360 | netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); |
4a1728a2 | 361 | return -ETIMEDOUT; |
1da177e4 LT |
362 | } |
363 | #endif /* PEGASUS_WRITE_EEPROM */ | |
364 | ||
5a9dbfe0 | 365 | static inline void get_node_id(pegasus_t *pegasus, __u8 *id) |
1da177e4 LT |
366 | { |
367 | int i; | |
368 | __u16 w16; | |
369 | ||
370 | for (i = 0; i < 3; i++) { | |
371 | read_eprom_word(pegasus, i, &w16); | |
da2bbdcc | 372 | ((__le16 *) id)[i] = cpu_to_le16(w16); |
1da177e4 LT |
373 | } |
374 | } | |
375 | ||
5a9dbfe0 | 376 | static void set_ethernet_addr(pegasus_t *pegasus) |
1da177e4 LT |
377 | { |
378 | __u8 node_id[6]; | |
1da177e4 | 379 | |
37cf3477 PM |
380 | if (pegasus->features & PEGASUS_II) { |
381 | get_registers(pegasus, 0x10, sizeof(node_id), node_id); | |
382 | } else { | |
383 | get_node_id(pegasus, node_id); | |
5a9dbfe0 | 384 | set_registers(pegasus, EthID, sizeof(node_id), node_id); |
37cf3477 | 385 | } |
5a9dbfe0 | 386 | memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); |
1da177e4 LT |
387 | } |
388 | ||
5a9dbfe0 | 389 | static inline int reset_mac(pegasus_t *pegasus) |
1da177e4 LT |
390 | { |
391 | __u8 data = 0x8; | |
392 | int i; | |
1da177e4 | 393 | |
4a1728a2 | 394 | set_register(pegasus, EthCtrl1, data); |
1da177e4 | 395 | for (i = 0; i < REG_TIMEOUT; i++) { |
4a1728a2 | 396 | get_registers(pegasus, EthCtrl1, 1, &data); |
1da177e4 | 397 | if (~data & 0x08) { |
681f1623 | 398 | if (loopback) |
1da177e4 LT |
399 | break; |
400 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) | |
4a1728a2 | 401 | set_register(pegasus, Gpio1, 0x34); |
1da177e4 | 402 | else |
4a1728a2 PM |
403 | set_register(pegasus, Gpio1, 0x26); |
404 | set_register(pegasus, Gpio0, pegasus->features); | |
405 | set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); | |
1da177e4 LT |
406 | break; |
407 | } | |
408 | } | |
409 | if (i == REG_TIMEOUT) | |
4a1728a2 | 410 | return -ETIMEDOUT; |
1da177e4 LT |
411 | |
412 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
413 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
4a1728a2 PM |
414 | set_register(pegasus, Gpio0, 0x24); |
415 | set_register(pegasus, Gpio0, 0x26); | |
1da177e4 LT |
416 | } |
417 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { | |
418 | __u16 auxmode; | |
419 | read_mii_word(pegasus, 3, 0x1b, &auxmode); | |
2bd64701 PM |
420 | auxmode |= 4; |
421 | write_mii_word(pegasus, 3, 0x1b, &auxmode); | |
1da177e4 LT |
422 | } |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
427 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) | |
428 | { | |
429 | __u16 linkpart; | |
430 | __u8 data[4]; | |
431 | pegasus_t *pegasus = netdev_priv(dev); | |
432 | int ret; | |
433 | ||
434 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); | |
1a8deec0 | 435 | data[0] = 0xc8; /* TX & RX enable, append status, no CRC */ |
1da177e4 LT |
436 | data[1] = 0; |
437 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) | |
438 | data[1] |= 0x20; /* set full duplex */ | |
439 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) | |
440 | data[1] |= 0x10; /* set 100 Mbps */ | |
441 | if (mii_mode) | |
442 | data[1] = 0; | |
681f1623 | 443 | data[2] = loopback ? 0x09 : 0x01; |
1da177e4 | 444 | |
5a9dbfe0 | 445 | memcpy(pegasus->eth_regs, data, sizeof(data)); |
1da177e4 LT |
446 | ret = set_registers(pegasus, EthCtrl0, 3, data); |
447 | ||
448 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
efafe6fb | 449 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || |
1da177e4 LT |
450 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { |
451 | u16 auxmode; | |
452 | read_mii_word(pegasus, 0, 0x1b, &auxmode); | |
2bd64701 PM |
453 | auxmode |= 4; |
454 | write_mii_word(pegasus, 0, 0x1b, &auxmode); | |
1da177e4 LT |
455 | } |
456 | ||
4a1728a2 | 457 | return ret; |
1da177e4 LT |
458 | } |
459 | ||
7d12e780 | 460 | static void read_bulk_callback(struct urb *urb) |
1da177e4 LT |
461 | { |
462 | pegasus_t *pegasus = urb->context; | |
463 | struct net_device *net; | |
464 | int rx_status, count = urb->actual_length; | |
c94cb314 | 465 | int status = urb->status; |
1da177e4 LT |
466 | u8 *buf = urb->transfer_buffer; |
467 | __u16 pkt_len; | |
468 | ||
469 | if (!pegasus) | |
470 | return; | |
471 | ||
472 | net = pegasus->net; | |
473 | if (!netif_device_present(net) || !netif_running(net)) | |
474 | return; | |
475 | ||
c94cb314 | 476 | switch (status) { |
1da177e4 LT |
477 | case 0: |
478 | break; | |
38e2bfc9 | 479 | case -ETIME: |
a475f603 | 480 | netif_dbg(pegasus, rx_err, net, "reset MAC\n"); |
1da177e4 LT |
481 | pegasus->flags &= ~PEGASUS_RX_BUSY; |
482 | break; | |
483 | case -EPIPE: /* stall, or disconnect from TT */ | |
484 | /* FIXME schedule work to clear the halt */ | |
a475f603 | 485 | netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); |
1da177e4 LT |
486 | return; |
487 | case -ENOENT: | |
488 | case -ECONNRESET: | |
489 | case -ESHUTDOWN: | |
a475f603 | 490 | netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); |
1da177e4 LT |
491 | return; |
492 | default: | |
a475f603 | 493 | netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); |
1da177e4 LT |
494 | goto goon; |
495 | } | |
496 | ||
bbf178e0 | 497 | if (count < 4) |
1da177e4 LT |
498 | goto goon; |
499 | ||
500 | rx_status = buf[count - 2]; | |
501 | if (rx_status & 0x1e) { | |
a475f603 JP |
502 | netif_dbg(pegasus, rx_err, net, |
503 | "RX packet error %x\n", rx_status); | |
82d82938 | 504 | net->stats.rx_errors++; |
5a9dbfe0 | 505 | if (rx_status & 0x06) /* long or runt */ |
82d82938 | 506 | net->stats.rx_length_errors++; |
1da177e4 | 507 | if (rx_status & 0x08) |
82d82938 | 508 | net->stats.rx_crc_errors++; |
5a9dbfe0 | 509 | if (rx_status & 0x10) /* extra bits */ |
82d82938 | 510 | net->stats.rx_frame_errors++; |
1da177e4 LT |
511 | goto goon; |
512 | } | |
513 | if (pegasus->chip == 0x8513) { | |
514 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); | |
515 | pkt_len &= 0x0fff; | |
516 | pegasus->rx_skb->data += 2; | |
517 | } else { | |
518 | pkt_len = buf[count - 3] << 8; | |
519 | pkt_len += buf[count - 4]; | |
520 | pkt_len &= 0xfff; | |
1a8deec0 | 521 | pkt_len -= 4; |
1da177e4 LT |
522 | } |
523 | ||
a85a46f2 KV |
524 | /* |
525 | * If the packet is unreasonably long, quietly drop it rather than | |
526 | * kernel panicing by calling skb_put. | |
527 | */ | |
528 | if (pkt_len > PEGASUS_MTU) | |
529 | goto goon; | |
530 | ||
1da177e4 LT |
531 | /* |
532 | * at this point we are sure pegasus->rx_skb != NULL | |
533 | * so we go ahead and pass up the packet. | |
534 | */ | |
535 | skb_put(pegasus->rx_skb, pkt_len); | |
536 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); | |
537 | netif_rx(pegasus->rx_skb); | |
82d82938 TK |
538 | net->stats.rx_packets++; |
539 | net->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
540 | |
541 | if (pegasus->flags & PEGASUS_UNPLUG) | |
542 | return; | |
543 | ||
313a58e4 PM |
544 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU, |
545 | GFP_ATOMIC); | |
1da177e4 LT |
546 | |
547 | if (pegasus->rx_skb == NULL) | |
548 | goto tl_sched; | |
549 | goon: | |
550 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
551 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 552 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 | 553 | read_bulk_callback, pegasus); |
955a2608 DB |
554 | rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
555 | if (rx_status == -ENODEV) | |
556 | netif_device_detach(pegasus->net); | |
557 | else if (rx_status) { | |
1da177e4 LT |
558 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
559 | goto tl_sched; | |
560 | } else { | |
561 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
562 | } | |
563 | ||
564 | return; | |
565 | ||
566 | tl_sched: | |
567 | tasklet_schedule(&pegasus->rx_tl); | |
568 | } | |
569 | ||
570 | static void rx_fixup(unsigned long data) | |
571 | { | |
572 | pegasus_t *pegasus; | |
955a2608 | 573 | int status; |
1da177e4 LT |
574 | |
575 | pegasus = (pegasus_t *) data; | |
576 | if (pegasus->flags & PEGASUS_UNPLUG) | |
577 | return; | |
578 | ||
1da177e4 LT |
579 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) |
580 | if (pegasus->rx_skb) | |
581 | goto try_again; | |
5a9dbfe0 | 582 | if (pegasus->rx_skb == NULL) |
313a58e4 PM |
583 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
584 | PEGASUS_MTU, | |
585 | GFP_ATOMIC); | |
1da177e4 | 586 | if (pegasus->rx_skb == NULL) { |
a475f603 | 587 | netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); |
1da177e4 | 588 | tasklet_schedule(&pegasus->rx_tl); |
313a58e4 | 589 | return; |
1da177e4 LT |
590 | } |
591 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
592 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 593 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 LT |
594 | read_bulk_callback, pegasus); |
595 | try_again: | |
955a2608 DB |
596 | status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); |
597 | if (status == -ENODEV) | |
598 | netif_device_detach(pegasus->net); | |
599 | else if (status) { | |
1da177e4 LT |
600 | pegasus->flags |= PEGASUS_RX_URB_FAIL; |
601 | tasklet_schedule(&pegasus->rx_tl); | |
602 | } else { | |
603 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
604 | } | |
1da177e4 LT |
605 | } |
606 | ||
7d12e780 | 607 | static void write_bulk_callback(struct urb *urb) |
1da177e4 LT |
608 | { |
609 | pegasus_t *pegasus = urb->context; | |
9351982b | 610 | struct net_device *net; |
c94cb314 | 611 | int status = urb->status; |
1da177e4 LT |
612 | |
613 | if (!pegasus) | |
614 | return; | |
615 | ||
9351982b MG |
616 | net = pegasus->net; |
617 | ||
1da177e4 LT |
618 | if (!netif_device_present(net) || !netif_running(net)) |
619 | return; | |
620 | ||
c94cb314 | 621 | switch (status) { |
1da177e4 LT |
622 | case -EPIPE: |
623 | /* FIXME schedule_work() to clear the tx halt */ | |
624 | netif_stop_queue(net); | |
a475f603 | 625 | netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); |
1da177e4 LT |
626 | return; |
627 | case -ENOENT: | |
628 | case -ECONNRESET: | |
629 | case -ESHUTDOWN: | |
a475f603 | 630 | netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); |
1da177e4 LT |
631 | return; |
632 | default: | |
a475f603 | 633 | netif_info(pegasus, tx_err, net, "TX status %d\n", status); |
1da177e4 LT |
634 | /* FALL THROUGH */ |
635 | case 0: | |
636 | break; | |
637 | } | |
638 | ||
860e9538 | 639 | netif_trans_update(net); /* prevent tx timeout */ |
1da177e4 LT |
640 | netif_wake_queue(net); |
641 | } | |
642 | ||
7d12e780 | 643 | static void intr_callback(struct urb *urb) |
1da177e4 LT |
644 | { |
645 | pegasus_t *pegasus = urb->context; | |
646 | struct net_device *net; | |
c94cb314 | 647 | int res, status = urb->status; |
1da177e4 LT |
648 | |
649 | if (!pegasus) | |
650 | return; | |
651 | net = pegasus->net; | |
652 | ||
c94cb314 | 653 | switch (status) { |
1da177e4 LT |
654 | case 0: |
655 | break; | |
656 | case -ECONNRESET: /* unlink */ | |
657 | case -ENOENT: | |
658 | case -ESHUTDOWN: | |
659 | return; | |
660 | default: | |
661 | /* some Pegasus-I products report LOTS of data | |
662 | * toggle errors... avoid log spamming | |
663 | */ | |
a475f603 | 664 | netif_dbg(pegasus, timer, net, "intr status %d\n", status); |
1da177e4 LT |
665 | } |
666 | ||
667 | if (urb->actual_length >= 6) { | |
5a9dbfe0 | 668 | u8 *d = urb->transfer_buffer; |
1da177e4 LT |
669 | |
670 | /* byte 0 == tx_status1, reg 2B */ | |
671 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL | |
672 | |LATE_COL|JABBER_TIMEOUT)) { | |
82d82938 | 673 | net->stats.tx_errors++; |
1da177e4 | 674 | if (d[0] & TX_UNDERRUN) |
82d82938 | 675 | net->stats.tx_fifo_errors++; |
1da177e4 | 676 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) |
82d82938 | 677 | net->stats.tx_aborted_errors++; |
1da177e4 | 678 | if (d[0] & LATE_COL) |
82d82938 | 679 | net->stats.tx_window_errors++; |
1da177e4 LT |
680 | } |
681 | ||
682 | /* d[5].LINK_STATUS lies on some adapters. | |
683 | * d[0].NO_CARRIER kicks in only with failed TX. | |
684 | * ... so monitoring with MII may be safest. | |
685 | */ | |
1da177e4 LT |
686 | |
687 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ | |
82d82938 | 688 | net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; |
1da177e4 LT |
689 | } |
690 | ||
c94cb314 ON |
691 | res = usb_submit_urb(urb, GFP_ATOMIC); |
692 | if (res == -ENODEV) | |
955a2608 | 693 | netif_device_detach(pegasus->net); |
a475f603 JP |
694 | if (res) |
695 | netif_err(pegasus, timer, net, | |
696 | "can't resubmit interrupt urb, %d\n", res); | |
1da177e4 LT |
697 | } |
698 | ||
699 | static void pegasus_tx_timeout(struct net_device *net) | |
700 | { | |
701 | pegasus_t *pegasus = netdev_priv(net); | |
a475f603 | 702 | netif_warn(pegasus, timer, net, "tx timeout\n"); |
1da177e4 | 703 | usb_unlink_urb(pegasus->tx_urb); |
82d82938 | 704 | net->stats.tx_errors++; |
1da177e4 LT |
705 | } |
706 | ||
25a79c41 SH |
707 | static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, |
708 | struct net_device *net) | |
1da177e4 LT |
709 | { |
710 | pegasus_t *pegasus = netdev_priv(net); | |
711 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; | |
712 | int res; | |
713 | __u16 l16 = skb->len; | |
714 | ||
715 | netif_stop_queue(net); | |
716 | ||
717 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); | |
d626f62b | 718 | skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); |
1da177e4 LT |
719 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, |
720 | usb_sndbulkpipe(pegasus->usb, 2), | |
721 | pegasus->tx_buff, count, | |
722 | write_bulk_callback, pegasus); | |
723 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { | |
a475f603 | 724 | netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); |
1da177e4 LT |
725 | switch (res) { |
726 | case -EPIPE: /* stall, or disconnect from TT */ | |
727 | /* cleanup should already have been scheduled */ | |
728 | break; | |
729 | case -ENODEV: /* disconnect() upcoming */ | |
9dd014eb | 730 | case -EPERM: |
955a2608 | 731 | netif_device_detach(pegasus->net); |
1da177e4 LT |
732 | break; |
733 | default: | |
82d82938 | 734 | net->stats.tx_errors++; |
1da177e4 LT |
735 | netif_start_queue(net); |
736 | } | |
737 | } else { | |
82d82938 TK |
738 | net->stats.tx_packets++; |
739 | net->stats.tx_bytes += skb->len; | |
1da177e4 LT |
740 | } |
741 | dev_kfree_skb(skb); | |
742 | ||
6ed10654 | 743 | return NETDEV_TX_OK; |
1da177e4 LT |
744 | } |
745 | ||
5a9dbfe0 | 746 | static inline void disable_net_traffic(pegasus_t *pegasus) |
1da177e4 | 747 | { |
e3453f63 | 748 | __le16 tmp = cpu_to_le16(0); |
1da177e4 | 749 | |
e3453f63 | 750 | set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); |
1da177e4 LT |
751 | } |
752 | ||
5a9dbfe0 | 753 | static inline void get_interrupt_interval(pegasus_t *pegasus) |
1da177e4 | 754 | { |
e3453f63 MB |
755 | u16 data; |
756 | u8 interval; | |
1da177e4 | 757 | |
e3453f63 MB |
758 | read_eprom_word(pegasus, 4, &data); |
759 | interval = data >> 8; | |
a85a46f2 | 760 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
e3453f63 | 761 | if (interval < 0x80) { |
a475f603 JP |
762 | netif_info(pegasus, timer, pegasus->net, |
763 | "intr interval changed from %ums to %ums\n", | |
764 | interval, 0x80); | |
e3453f63 MB |
765 | interval = 0x80; |
766 | data = (data & 0x00FF) | ((u16)interval << 8); | |
a85a46f2 | 767 | #ifdef PEGASUS_WRITE_EEPROM |
e3453f63 | 768 | write_eprom_word(pegasus, 4, data); |
1da177e4 | 769 | #endif |
a85a46f2 | 770 | } |
1da177e4 | 771 | } |
e3453f63 | 772 | pegasus->intr_interval = interval; |
1da177e4 LT |
773 | } |
774 | ||
775 | static void set_carrier(struct net_device *net) | |
776 | { | |
777 | pegasus_t *pegasus = netdev_priv(net); | |
778 | u16 tmp; | |
779 | ||
c43c49bd | 780 | if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
1da177e4 | 781 | return; |
a85a46f2 | 782 | |
1da177e4 LT |
783 | if (tmp & BMSR_LSTATUS) |
784 | netif_carrier_on(net); | |
785 | else | |
786 | netif_carrier_off(net); | |
787 | } | |
788 | ||
5a9dbfe0 | 789 | static void free_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
790 | { |
791 | usb_free_urb(pegasus->intr_urb); | |
792 | usb_free_urb(pegasus->tx_urb); | |
793 | usb_free_urb(pegasus->rx_urb); | |
1da177e4 LT |
794 | } |
795 | ||
5a9dbfe0 | 796 | static void unlink_all_urbs(pegasus_t *pegasus) |
1da177e4 LT |
797 | { |
798 | usb_kill_urb(pegasus->intr_urb); | |
799 | usb_kill_urb(pegasus->tx_urb); | |
800 | usb_kill_urb(pegasus->rx_urb); | |
1da177e4 LT |
801 | } |
802 | ||
5a9dbfe0 | 803 | static int alloc_urbs(pegasus_t *pegasus) |
1da177e4 | 804 | { |
323b3496 PM |
805 | int res = -ENOMEM; |
806 | ||
1da177e4 LT |
807 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
808 | if (!pegasus->rx_urb) { | |
323b3496 | 809 | return res; |
1da177e4 LT |
810 | } |
811 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
812 | if (!pegasus->tx_urb) { | |
813 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 814 | return res; |
1da177e4 LT |
815 | } |
816 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
817 | if (!pegasus->intr_urb) { | |
818 | usb_free_urb(pegasus->tx_urb); | |
819 | usb_free_urb(pegasus->rx_urb); | |
323b3496 | 820 | return res; |
1da177e4 LT |
821 | } |
822 | ||
323b3496 | 823 | return 0; |
1da177e4 LT |
824 | } |
825 | ||
826 | static int pegasus_open(struct net_device *net) | |
827 | { | |
828 | pegasus_t *pegasus = netdev_priv(net); | |
323b3496 | 829 | int res=-ENOMEM; |
1da177e4 LT |
830 | |
831 | if (pegasus->rx_skb == NULL) | |
313a58e4 PM |
832 | pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, |
833 | PEGASUS_MTU, | |
834 | GFP_KERNEL); | |
1da177e4 | 835 | if (!pegasus->rx_skb) |
323b3496 | 836 | goto exit; |
1da177e4 LT |
837 | |
838 | res = set_registers(pegasus, EthID, 6, net->dev_addr); | |
5a9dbfe0 | 839 | |
1da177e4 LT |
840 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, |
841 | usb_rcvbulkpipe(pegasus->usb, 1), | |
b7302ca0 | 842 | pegasus->rx_skb->data, PEGASUS_MTU, |
1da177e4 LT |
843 | read_bulk_callback, pegasus); |
844 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { | |
955a2608 DB |
845 | if (res == -ENODEV) |
846 | netif_device_detach(pegasus->net); | |
a475f603 | 847 | netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); |
1da177e4 LT |
848 | goto exit; |
849 | } | |
850 | ||
851 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, | |
852 | usb_rcvintpipe(pegasus->usb, 3), | |
5a9dbfe0 | 853 | pegasus->intr_buff, sizeof(pegasus->intr_buff), |
1da177e4 LT |
854 | intr_callback, pegasus, pegasus->intr_interval); |
855 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { | |
955a2608 DB |
856 | if (res == -ENODEV) |
857 | netif_device_detach(pegasus->net); | |
a475f603 | 858 | netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); |
1da177e4 LT |
859 | usb_kill_urb(pegasus->rx_urb); |
860 | goto exit; | |
861 | } | |
323b3496 PM |
862 | res = enable_net_traffic(net, pegasus->usb); |
863 | if (res < 0) { | |
a475f603 JP |
864 | netif_dbg(pegasus, ifup, net, |
865 | "can't enable_net_traffic() - %d\n", res); | |
1da177e4 LT |
866 | res = -EIO; |
867 | usb_kill_urb(pegasus->rx_urb); | |
868 | usb_kill_urb(pegasus->intr_urb); | |
1da177e4 LT |
869 | goto exit; |
870 | } | |
871 | set_carrier(net); | |
872 | netif_start_queue(net); | |
a475f603 | 873 | netif_dbg(pegasus, ifup, net, "open\n"); |
1da177e4 LT |
874 | res = 0; |
875 | exit: | |
876 | return res; | |
877 | } | |
878 | ||
879 | static int pegasus_close(struct net_device *net) | |
880 | { | |
881 | pegasus_t *pegasus = netdev_priv(net); | |
882 | ||
883 | netif_stop_queue(net); | |
884 | if (!(pegasus->flags & PEGASUS_UNPLUG)) | |
885 | disable_net_traffic(pegasus); | |
886 | tasklet_kill(&pegasus->rx_tl); | |
887 | unlink_all_urbs(pegasus); | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
892 | static void pegasus_get_drvinfo(struct net_device *dev, | |
893 | struct ethtool_drvinfo *info) | |
894 | { | |
895 | pegasus_t *pegasus = netdev_priv(dev); | |
7826d43f JP |
896 | |
897 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
898 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
5a9dbfe0 | 899 | usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); |
1da177e4 LT |
900 | } |
901 | ||
902 | /* also handles three patterns of some kind in hardware */ | |
903 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) | |
904 | ||
905 | static void | |
906 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
907 | { | |
908 | pegasus_t *pegasus = netdev_priv(dev); | |
909 | ||
910 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
911 | wol->wolopts = pegasus->wolopts; | |
912 | } | |
913 | ||
914 | static int | |
915 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
916 | { | |
917 | pegasus_t *pegasus = netdev_priv(dev); | |
918 | u8 reg78 = 0x04; | |
4fbc5b20 | 919 | int ret; |
5a9dbfe0 | 920 | |
1da177e4 LT |
921 | if (wol->wolopts & ~WOL_SUPPORTED) |
922 | return -EINVAL; | |
923 | ||
924 | if (wol->wolopts & WAKE_MAGIC) | |
925 | reg78 |= 0x80; | |
926 | if (wol->wolopts & WAKE_PHY) | |
927 | reg78 |= 0x40; | |
928 | /* FIXME this 0x10 bit still needs to get set in the chip... */ | |
929 | if (wol->wolopts) | |
930 | pegasus->eth_regs[0] |= 0x10; | |
931 | else | |
932 | pegasus->eth_regs[0] &= ~0x10; | |
933 | pegasus->wolopts = wol->wolopts; | |
4fbc5b20 ML |
934 | |
935 | ret = set_register(pegasus, WakeupControl, reg78); | |
936 | if (!ret) | |
937 | ret = device_set_wakeup_enable(&pegasus->usb->dev, | |
938 | wol->wolopts); | |
939 | return ret; | |
1da177e4 LT |
940 | } |
941 | ||
942 | static inline void pegasus_reset_wol(struct net_device *dev) | |
943 | { | |
944 | struct ethtool_wolinfo wol; | |
5a9dbfe0 | 945 | |
1da177e4 LT |
946 | memset(&wol, 0, sizeof wol); |
947 | (void) pegasus_set_wol(dev, &wol); | |
948 | } | |
949 | ||
950 | static int | |
71dbc341 PR |
951 | pegasus_get_link_ksettings(struct net_device *dev, |
952 | struct ethtool_link_ksettings *ecmd) | |
1da177e4 LT |
953 | { |
954 | pegasus_t *pegasus; | |
955 | ||
1da177e4 | 956 | pegasus = netdev_priv(dev); |
71dbc341 | 957 | mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd); |
1da177e4 LT |
958 | return 0; |
959 | } | |
960 | ||
961 | static int | |
71dbc341 PR |
962 | pegasus_set_link_ksettings(struct net_device *dev, |
963 | const struct ethtool_link_ksettings *ecmd) | |
1da177e4 LT |
964 | { |
965 | pegasus_t *pegasus = netdev_priv(dev); | |
71dbc341 | 966 | return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd); |
1da177e4 LT |
967 | } |
968 | ||
969 | static int pegasus_nway_reset(struct net_device *dev) | |
970 | { | |
971 | pegasus_t *pegasus = netdev_priv(dev); | |
972 | return mii_nway_restart(&pegasus->mii); | |
973 | } | |
974 | ||
975 | static u32 pegasus_get_link(struct net_device *dev) | |
976 | { | |
977 | pegasus_t *pegasus = netdev_priv(dev); | |
978 | return mii_link_ok(&pegasus->mii); | |
979 | } | |
980 | ||
981 | static u32 pegasus_get_msglevel(struct net_device *dev) | |
982 | { | |
983 | pegasus_t *pegasus = netdev_priv(dev); | |
984 | return pegasus->msg_enable; | |
985 | } | |
986 | ||
987 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) | |
988 | { | |
989 | pegasus_t *pegasus = netdev_priv(dev); | |
990 | pegasus->msg_enable = v; | |
991 | } | |
992 | ||
0fc0b732 | 993 | static const struct ethtool_ops ops = { |
1da177e4 | 994 | .get_drvinfo = pegasus_get_drvinfo, |
1da177e4 LT |
995 | .nway_reset = pegasus_nway_reset, |
996 | .get_link = pegasus_get_link, | |
997 | .get_msglevel = pegasus_get_msglevel, | |
998 | .set_msglevel = pegasus_set_msglevel, | |
999 | .get_wol = pegasus_get_wol, | |
1000 | .set_wol = pegasus_set_wol, | |
71dbc341 PR |
1001 | .get_link_ksettings = pegasus_get_link_ksettings, |
1002 | .set_link_ksettings = pegasus_set_link_ksettings, | |
1da177e4 LT |
1003 | }; |
1004 | ||
1005 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
1006 | { | |
5a9dbfe0 | 1007 | __u16 *data = (__u16 *) &rq->ifr_ifru; |
1da177e4 LT |
1008 | pegasus_t *pegasus = netdev_priv(net); |
1009 | int res; | |
1010 | ||
1011 | switch (cmd) { | |
1012 | case SIOCDEVPRIVATE: | |
1013 | data[0] = pegasus->phy; | |
1014 | case SIOCDEVPRIVATE + 1: | |
1015 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); | |
1016 | res = 0; | |
1017 | break; | |
1018 | case SIOCDEVPRIVATE + 2: | |
1019 | if (!capable(CAP_NET_ADMIN)) | |
1020 | return -EPERM; | |
2bd64701 | 1021 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); |
1da177e4 LT |
1022 | res = 0; |
1023 | break; | |
1024 | default: | |
1025 | res = -EOPNOTSUPP; | |
1026 | } | |
1027 | return res; | |
1028 | } | |
1029 | ||
1030 | static void pegasus_set_multicast(struct net_device *net) | |
1031 | { | |
1032 | pegasus_t *pegasus = netdev_priv(net); | |
1033 | ||
1034 | if (net->flags & IFF_PROMISC) { | |
1035 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; | |
a475f603 | 1036 | netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); |
4cd24eaf | 1037 | } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
1038 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; |
1039 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
a475f603 | 1040 | netif_dbg(pegasus, link, net, "set allmulti\n"); |
1da177e4 LT |
1041 | } else { |
1042 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; | |
1043 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1044 | } | |
323b3496 | 1045 | update_eth_regs_async(pegasus); |
1da177e4 LT |
1046 | } |
1047 | ||
5a9dbfe0 | 1048 | static __u8 mii_phy_probe(pegasus_t *pegasus) |
1da177e4 LT |
1049 | { |
1050 | int i; | |
1051 | __u16 tmp; | |
1052 | ||
1053 | for (i = 0; i < 32; i++) { | |
1054 | read_mii_word(pegasus, i, MII_BMSR, &tmp); | |
1055 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) | |
1056 | continue; | |
1057 | else | |
1058 | return i; | |
1059 | } | |
1060 | ||
1061 | return 0xff; | |
1062 | } | |
1063 | ||
5a9dbfe0 | 1064 | static inline void setup_pegasus_II(pegasus_t *pegasus) |
1da177e4 LT |
1065 | { |
1066 | __u8 data = 0xa5; | |
5a9dbfe0 | 1067 | |
4a1728a2 PM |
1068 | set_register(pegasus, Reg1d, 0); |
1069 | set_register(pegasus, Reg7b, 1); | |
1da177e4 LT |
1070 | mdelay(100); |
1071 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) | |
4a1728a2 | 1072 | set_register(pegasus, Reg7b, 0); |
1da177e4 | 1073 | else |
4a1728a2 | 1074 | set_register(pegasus, Reg7b, 2); |
1da177e4 | 1075 | |
4a1728a2 PM |
1076 | set_register(pegasus, 0x83, data); |
1077 | get_registers(pegasus, 0x83, 1, &data); | |
1da177e4 | 1078 | |
5a9dbfe0 | 1079 | if (data == 0xa5) |
1da177e4 | 1080 | pegasus->chip = 0x8513; |
5a9dbfe0 | 1081 | else |
1da177e4 | 1082 | pegasus->chip = 0; |
1da177e4 | 1083 | |
4a1728a2 PM |
1084 | set_register(pegasus, 0x80, 0xc0); |
1085 | set_register(pegasus, 0x83, 0xff); | |
1086 | set_register(pegasus, 0x84, 0x01); | |
5a9dbfe0 | 1087 | |
1da177e4 | 1088 | if (pegasus->features & HAS_HOME_PNA && mii_mode) |
4a1728a2 | 1089 | set_register(pegasus, Reg81, 6); |
1da177e4 | 1090 | else |
4a1728a2 | 1091 | set_register(pegasus, Reg81, 2); |
1da177e4 LT |
1092 | } |
1093 | ||
1094 | ||
cda2836d | 1095 | static int pegasus_count; |
5a9dbfe0 | 1096 | static struct workqueue_struct *pegasus_workqueue; |
1da177e4 LT |
1097 | #define CARRIER_CHECK_DELAY (2 * HZ) |
1098 | ||
c4028958 | 1099 | static void check_carrier(struct work_struct *work) |
1da177e4 | 1100 | { |
c4028958 | 1101 | pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); |
1da177e4 LT |
1102 | set_carrier(pegasus->net); |
1103 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { | |
1104 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1105 | CARRIER_CHECK_DELAY); | |
1106 | } | |
1107 | } | |
1108 | ||
4f63135e BC |
1109 | static int pegasus_blacklisted(struct usb_device *udev) |
1110 | { | |
1111 | struct usb_device_descriptor *udd = &udev->descriptor; | |
1112 | ||
1113 | /* Special quirk to keep the driver from handling the Belkin Bluetooth | |
1114 | * dongle which happens to have the same ID. | |
1115 | */ | |
e3453f63 MB |
1116 | if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && |
1117 | (udd->idProduct == cpu_to_le16(0x0121)) && | |
4f63135e BC |
1118 | (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && |
1119 | (udd->bDeviceProtocol == 1)) | |
1120 | return 1; | |
1121 | ||
1122 | return 0; | |
1123 | } | |
1124 | ||
cda2836d DB |
1125 | /* we rely on probe() and remove() being serialized so we |
1126 | * don't need extra locking on pegasus_count. | |
1127 | */ | |
1128 | static void pegasus_dec_workqueue(void) | |
1129 | { | |
1130 | pegasus_count--; | |
1131 | if (pegasus_count == 0) { | |
1132 | destroy_workqueue(pegasus_workqueue); | |
1133 | pegasus_workqueue = NULL; | |
1134 | } | |
1135 | } | |
1136 | ||
1da177e4 LT |
1137 | static int pegasus_probe(struct usb_interface *intf, |
1138 | const struct usb_device_id *id) | |
1139 | { | |
1140 | struct usb_device *dev = interface_to_usbdev(intf); | |
1141 | struct net_device *net; | |
1142 | pegasus_t *pegasus; | |
1143 | int dev_index = id - pegasus_ids; | |
1144 | int res = -ENOMEM; | |
1145 | ||
cda2836d DB |
1146 | if (pegasus_blacklisted(dev)) |
1147 | return -ENODEV; | |
4f63135e | 1148 | |
cda2836d | 1149 | if (pegasus_count == 0) { |
95ac3994 BS |
1150 | pegasus_workqueue = alloc_workqueue("pegasus", WQ_MEM_RECLAIM, |
1151 | 0); | |
cda2836d DB |
1152 | if (!pegasus_workqueue) |
1153 | return -ENOMEM; | |
4f63135e | 1154 | } |
cda2836d DB |
1155 | pegasus_count++; |
1156 | ||
1da177e4 | 1157 | net = alloc_etherdev(sizeof(struct pegasus)); |
41de8d4c | 1158 | if (!net) |
1da177e4 | 1159 | goto out; |
1da177e4 LT |
1160 | |
1161 | pegasus = netdev_priv(net); | |
1da177e4 | 1162 | pegasus->dev_index = dev_index; |
1da177e4 | 1163 | |
323b3496 PM |
1164 | res = alloc_urbs(pegasus); |
1165 | if (res < 0) { | |
1da177e4 LT |
1166 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); |
1167 | goto out1; | |
1168 | } | |
1169 | ||
1170 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); | |
1171 | ||
c4028958 | 1172 | INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); |
1da177e4 LT |
1173 | |
1174 | pegasus->intf = intf; | |
1175 | pegasus->usb = dev; | |
1176 | pegasus->net = net; | |
8cb89571 ON |
1177 | |
1178 | ||
1da177e4 | 1179 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; |
8cb89571 | 1180 | net->netdev_ops = &pegasus_netdev_ops; |
7ad24ea4 | 1181 | net->ethtool_ops = &ops; |
1da177e4 LT |
1182 | pegasus->mii.dev = net; |
1183 | pegasus->mii.mdio_read = mdio_read; | |
1184 | pegasus->mii.mdio_write = mdio_write; | |
1185 | pegasus->mii.phy_id_mask = 0x1f; | |
1186 | pegasus->mii.reg_num_mask = 0x1f; | |
5a9dbfe0 | 1187 | pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV |
1da177e4 LT |
1188 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); |
1189 | ||
1190 | pegasus->features = usb_dev_id[dev_index].private; | |
1191 | get_interrupt_interval(pegasus); | |
1192 | if (reset_mac(pegasus)) { | |
1193 | dev_err(&intf->dev, "can't reset MAC\n"); | |
1194 | res = -EIO; | |
1195 | goto out2; | |
1196 | } | |
1197 | set_ethernet_addr(pegasus); | |
1da177e4 LT |
1198 | if (pegasus->features & PEGASUS_II) { |
1199 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); | |
1200 | setup_pegasus_II(pegasus); | |
1201 | } | |
1202 | pegasus->phy = mii_phy_probe(pegasus); | |
1203 | if (pegasus->phy == 0xff) { | |
1204 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); | |
1205 | pegasus->phy = 1; | |
1206 | } | |
1207 | pegasus->mii.phy_id = pegasus->phy; | |
1208 | usb_set_intfdata(intf, pegasus); | |
1209 | SET_NETDEV_DEV(net, &intf->dev); | |
1210 | pegasus_reset_wol(net); | |
1211 | res = register_netdev(net); | |
1212 | if (res) | |
1213 | goto out3; | |
1214 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
323b3496 PM |
1215 | CARRIER_CHECK_DELAY); |
1216 | dev_info(&intf->dev, "%s, %s, %pM\n", net->name, | |
1217 | usb_dev_id[dev_index].name, net->dev_addr); | |
1da177e4 LT |
1218 | return 0; |
1219 | ||
1220 | out3: | |
1221 | usb_set_intfdata(intf, NULL); | |
1da177e4 LT |
1222 | out2: |
1223 | free_all_urbs(pegasus); | |
1224 | out1: | |
1225 | free_netdev(net); | |
1226 | out: | |
cda2836d | 1227 | pegasus_dec_workqueue(); |
1da177e4 LT |
1228 | return res; |
1229 | } | |
1230 | ||
1231 | static void pegasus_disconnect(struct usb_interface *intf) | |
1232 | { | |
1233 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1234 | ||
1235 | usb_set_intfdata(intf, NULL); | |
1236 | if (!pegasus) { | |
1237 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); | |
1238 | return; | |
1239 | } | |
1240 | ||
1241 | pegasus->flags |= PEGASUS_UNPLUG; | |
1242 | cancel_delayed_work(&pegasus->carrier_check); | |
1243 | unregister_netdev(pegasus->net); | |
a85a46f2 | 1244 | unlink_all_urbs(pegasus); |
1da177e4 | 1245 | free_all_urbs(pegasus); |
4c13eb66 | 1246 | if (pegasus->rx_skb != NULL) { |
1da177e4 | 1247 | dev_kfree_skb(pegasus->rx_skb); |
4c13eb66 ACM |
1248 | pegasus->rx_skb = NULL; |
1249 | } | |
1da177e4 | 1250 | free_netdev(pegasus->net); |
cda2836d | 1251 | pegasus_dec_workqueue(); |
1da177e4 LT |
1252 | } |
1253 | ||
5a9dbfe0 | 1254 | static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1255 | { |
1256 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
5a9dbfe0 NK |
1257 | |
1258 | netif_device_detach(pegasus->net); | |
7e713b82 | 1259 | cancel_delayed_work(&pegasus->carrier_check); |
27d72e85 | 1260 | if (netif_running(pegasus->net)) { |
27d72e85 DB |
1261 | usb_kill_urb(pegasus->rx_urb); |
1262 | usb_kill_urb(pegasus->intr_urb); | |
1263 | } | |
1da177e4 LT |
1264 | return 0; |
1265 | } | |
1266 | ||
5a9dbfe0 | 1267 | static int pegasus_resume(struct usb_interface *intf) |
1da177e4 LT |
1268 | { |
1269 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1270 | ||
5a9dbfe0 | 1271 | netif_device_attach(pegasus->net); |
27d72e85 DB |
1272 | if (netif_running(pegasus->net)) { |
1273 | pegasus->rx_urb->status = 0; | |
1274 | pegasus->rx_urb->actual_length = 0; | |
7d12e780 | 1275 | read_bulk_callback(pegasus->rx_urb); |
27d72e85 DB |
1276 | |
1277 | pegasus->intr_urb->status = 0; | |
1278 | pegasus->intr_urb->actual_length = 0; | |
7d12e780 | 1279 | intr_callback(pegasus->intr_urb); |
27d72e85 | 1280 | } |
7e713b82 DB |
1281 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, |
1282 | CARRIER_CHECK_DELAY); | |
1da177e4 LT |
1283 | return 0; |
1284 | } | |
1285 | ||
8cb89571 ON |
1286 | static const struct net_device_ops pegasus_netdev_ops = { |
1287 | .ndo_open = pegasus_open, | |
1288 | .ndo_stop = pegasus_close, | |
1289 | .ndo_do_ioctl = pegasus_ioctl, | |
1290 | .ndo_start_xmit = pegasus_start_xmit, | |
afc4b13d | 1291 | .ndo_set_rx_mode = pegasus_set_multicast, |
8cb89571 | 1292 | .ndo_tx_timeout = pegasus_tx_timeout, |
240c102d BH |
1293 | .ndo_set_mac_address = eth_mac_addr, |
1294 | .ndo_validate_addr = eth_validate_addr, | |
8cb89571 ON |
1295 | }; |
1296 | ||
1da177e4 LT |
1297 | static struct usb_driver pegasus_driver = { |
1298 | .name = driver_name, | |
1299 | .probe = pegasus_probe, | |
1300 | .disconnect = pegasus_disconnect, | |
1301 | .id_table = pegasus_ids, | |
1302 | .suspend = pegasus_suspend, | |
1303 | .resume = pegasus_resume, | |
e1f12eb6 | 1304 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
1305 | }; |
1306 | ||
cda2836d | 1307 | static void __init parse_id(char *id) |
a4f81a61 | 1308 | { |
5a9dbfe0 NK |
1309 | unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; |
1310 | char *token, *name = NULL; | |
a4f81a61 Y |
1311 | |
1312 | if ((token = strsep(&id, ":")) != NULL) | |
1313 | name = token; | |
1314 | /* name now points to a null terminated string*/ | |
1315 | if ((token = strsep(&id, ":")) != NULL) | |
1316 | vendor_id = simple_strtoul(token, NULL, 16); | |
1317 | if ((token = strsep(&id, ":")) != NULL) | |
1318 | device_id = simple_strtoul(token, NULL, 16); | |
1319 | flags = simple_strtoul(id, NULL, 16); | |
1320 | pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", | |
5a9dbfe0 | 1321 | driver_name, name, vendor_id, device_id, flags); |
a4f81a61 Y |
1322 | |
1323 | if (vendor_id > 0x10000 || vendor_id == 0) | |
1324 | return; | |
1325 | if (device_id > 0x10000 || device_id == 0) | |
1326 | return; | |
1327 | ||
5a9dbfe0 | 1328 | for (i = 0; usb_dev_id[i].name; i++); |
a4f81a61 Y |
1329 | usb_dev_id[i].name = name; |
1330 | usb_dev_id[i].vendor = vendor_id; | |
1331 | usb_dev_id[i].device = device_id; | |
1332 | usb_dev_id[i].private = flags; | |
1333 | pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; | |
1334 | pegasus_ids[i].idVendor = vendor_id; | |
1335 | pegasus_ids[i].idProduct = device_id; | |
1336 | } | |
1337 | ||
1da177e4 LT |
1338 | static int __init pegasus_init(void) |
1339 | { | |
1340 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); | |
a4f81a61 Y |
1341 | if (devid) |
1342 | parse_id(devid); | |
1da177e4 LT |
1343 | return usb_register(&pegasus_driver); |
1344 | } | |
1345 | ||
1346 | static void __exit pegasus_exit(void) | |
1347 | { | |
1da177e4 LT |
1348 | usb_deregister(&pegasus_driver); |
1349 | } | |
1350 | ||
1351 | module_init(pegasus_init); | |
1352 | module_exit(pegasus_exit); |