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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 1999-2005 Petko Manolov (petkan@users.sourceforge.net) | |
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() | |
24 | * time as this seems to break dhcpd. | |
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 | |
28 | * is out of the interrupt routine. | |
29 | */ | |
30 | ||
1da177e4 LT |
31 | #include <linux/sched.h> |
32 | #include <linux/slab.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/netdevice.h> | |
36 | #include <linux/etherdevice.h> | |
37 | #include <linux/ethtool.h> | |
38 | #include <linux/mii.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/module.h> | |
41 | #include <asm/byteorder.h> | |
42 | #include <asm/uaccess.h> | |
43 | #include "pegasus.h" | |
44 | ||
45 | /* | |
46 | * Version Information | |
47 | */ | |
48 | #define DRIVER_VERSION "v0.6.12 (2005/01/13)" | |
49 | #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" | |
50 | #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" | |
51 | ||
52 | static const char driver_name[] = "pegasus"; | |
53 | ||
54 | #undef PEGASUS_WRITE_EEPROM | |
55 | #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ | |
56 | BMSR_100FULL | BMSR_ANEGCAPABLE) | |
57 | ||
58 | static int loopback = 0; | |
59 | static int mii_mode = 0; | |
1da177e4 LT |
60 | |
61 | static struct usb_eth_dev usb_dev_id[] = { | |
62 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
63 | {.name = pn, .vendor = vid, .device = pid, .private = flags}, | |
64 | #include "pegasus.h" | |
65 | #undef PEGASUS_DEV | |
66 | {NULL, 0, 0, 0} | |
67 | }; | |
68 | ||
69 | static struct usb_device_id pegasus_ids[] = { | |
70 | #define PEGASUS_DEV(pn, vid, pid, flags) \ | |
71 | {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, | |
72 | #include "pegasus.h" | |
73 | #undef PEGASUS_DEV | |
74 | {} | |
75 | }; | |
76 | ||
77 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
78 | MODULE_DESCRIPTION(DRIVER_DESC); | |
79 | MODULE_LICENSE("GPL"); | |
80 | module_param(loopback, bool, 0); | |
81 | module_param(mii_mode, bool, 0); | |
82 | MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); | |
83 | MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); | |
84 | ||
85 | /* use ethtool to change the level for any given device */ | |
86 | static int msg_level = -1; | |
87 | module_param (msg_level, int, 0); | |
88 | MODULE_PARM_DESC (msg_level, "Override default message level"); | |
89 | ||
90 | MODULE_DEVICE_TABLE(usb, pegasus_ids); | |
91 | ||
92 | static int update_eth_regs_async(pegasus_t *); | |
93 | /* Aargh!!! I _really_ hate such tweaks */ | |
94 | static void ctrl_callback(struct urb *urb, struct pt_regs *regs) | |
95 | { | |
96 | pegasus_t *pegasus = urb->context; | |
97 | ||
98 | if (!pegasus) | |
99 | return; | |
100 | ||
101 | switch (urb->status) { | |
102 | case 0: | |
103 | if (pegasus->flags & ETH_REGS_CHANGE) { | |
104 | pegasus->flags &= ~ETH_REGS_CHANGE; | |
105 | pegasus->flags |= ETH_REGS_CHANGED; | |
106 | update_eth_regs_async(pegasus); | |
107 | return; | |
108 | } | |
109 | break; | |
110 | case -EINPROGRESS: | |
111 | return; | |
112 | case -ENOENT: | |
113 | break; | |
114 | default: | |
115 | if (netif_msg_drv(pegasus)) | |
116 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
117 | __FUNCTION__, urb->status); | |
118 | } | |
119 | pegasus->flags &= ~ETH_REGS_CHANGED; | |
120 | wake_up(&pegasus->ctrl_wait); | |
121 | } | |
122 | ||
123 | static int get_registers(pegasus_t * pegasus, __u16 indx, __u16 size, | |
124 | void *data) | |
125 | { | |
126 | int ret; | |
127 | char *buffer; | |
128 | DECLARE_WAITQUEUE(wait, current); | |
129 | ||
130 | buffer = kmalloc(size, GFP_KERNEL); | |
131 | if (!buffer) { | |
132 | if (netif_msg_drv(pegasus)) | |
133 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
134 | __FUNCTION__); | |
135 | return -ENOMEM; | |
136 | } | |
137 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
138 | set_current_state(TASK_UNINTERRUPTIBLE); | |
139 | while (pegasus->flags & ETH_REGS_CHANGED) | |
140 | schedule(); | |
141 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
142 | set_current_state(TASK_RUNNING); | |
143 | ||
144 | pegasus->dr.bRequestType = PEGASUS_REQT_READ; | |
145 | pegasus->dr.bRequest = PEGASUS_REQ_GET_REGS; | |
146 | pegasus->dr.wValue = cpu_to_le16(0); | |
147 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
148 | pegasus->dr.wLength = cpu_to_le16p(&size); | |
149 | pegasus->ctrl_urb->transfer_buffer_length = size; | |
150 | ||
151 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
152 | usb_rcvctrlpipe(pegasus->usb, 0), | |
153 | (char *) &pegasus->dr, | |
154 | buffer, size, ctrl_callback, pegasus); | |
155 | ||
156 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
157 | set_current_state(TASK_UNINTERRUPTIBLE); | |
158 | ||
159 | /* using ATOMIC, we'd never wake up if we slept */ | |
160 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
161 | if (netif_msg_drv(pegasus)) | |
162 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
163 | __FUNCTION__, ret); | |
164 | goto out; | |
165 | } | |
166 | ||
167 | schedule(); | |
168 | out: | |
169 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
170 | memcpy(data, buffer, size); | |
171 | kfree(buffer); | |
172 | ||
173 | return ret; | |
174 | } | |
175 | ||
176 | static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, | |
177 | void *data) | |
178 | { | |
179 | int ret; | |
180 | char *buffer; | |
181 | DECLARE_WAITQUEUE(wait, current); | |
182 | ||
183 | buffer = kmalloc(size, GFP_KERNEL); | |
184 | if (!buffer) { | |
185 | if (netif_msg_drv(pegasus)) | |
186 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
187 | __FUNCTION__); | |
188 | return -ENOMEM; | |
189 | } | |
190 | memcpy(buffer, data, size); | |
191 | ||
192 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
193 | set_current_state(TASK_UNINTERRUPTIBLE); | |
194 | while (pegasus->flags & ETH_REGS_CHANGED) | |
195 | schedule(); | |
196 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
197 | set_current_state(TASK_RUNNING); | |
198 | ||
199 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
200 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; | |
201 | pegasus->dr.wValue = cpu_to_le16(0); | |
202 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
203 | pegasus->dr.wLength = cpu_to_le16p(&size); | |
204 | pegasus->ctrl_urb->transfer_buffer_length = size; | |
205 | ||
206 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
207 | usb_sndctrlpipe(pegasus->usb, 0), | |
208 | (char *) &pegasus->dr, | |
209 | buffer, size, ctrl_callback, pegasus); | |
210 | ||
211 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
212 | set_current_state(TASK_UNINTERRUPTIBLE); | |
213 | ||
214 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
215 | if (netif_msg_drv(pegasus)) | |
216 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
217 | __FUNCTION__, ret); | |
218 | goto out; | |
219 | } | |
220 | ||
221 | schedule(); | |
222 | out: | |
223 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
224 | kfree(buffer); | |
225 | ||
226 | return ret; | |
227 | } | |
228 | ||
229 | static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) | |
230 | { | |
231 | int ret; | |
232 | char *tmp; | |
233 | DECLARE_WAITQUEUE(wait, current); | |
234 | ||
235 | tmp = kmalloc(1, GFP_KERNEL); | |
236 | if (!tmp) { | |
237 | if (netif_msg_drv(pegasus)) | |
238 | dev_warn(&pegasus->intf->dev, "out of memory in %s\n", | |
239 | __FUNCTION__); | |
240 | return -ENOMEM; | |
241 | } | |
242 | memcpy(tmp, &data, 1); | |
243 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
244 | set_current_state(TASK_UNINTERRUPTIBLE); | |
245 | while (pegasus->flags & ETH_REGS_CHANGED) | |
246 | schedule(); | |
247 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
248 | set_current_state(TASK_RUNNING); | |
249 | ||
250 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
251 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REG; | |
252 | pegasus->dr.wValue = cpu_to_le16(data); | |
253 | pegasus->dr.wIndex = cpu_to_le16p(&indx); | |
254 | pegasus->dr.wLength = cpu_to_le16(1); | |
255 | pegasus->ctrl_urb->transfer_buffer_length = 1; | |
256 | ||
257 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
258 | usb_sndctrlpipe(pegasus->usb, 0), | |
259 | (char *) &pegasus->dr, | |
260 | &tmp, 1, ctrl_callback, pegasus); | |
261 | ||
262 | add_wait_queue(&pegasus->ctrl_wait, &wait); | |
263 | set_current_state(TASK_UNINTERRUPTIBLE); | |
264 | ||
265 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) { | |
266 | if (netif_msg_drv(pegasus)) | |
267 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
268 | __FUNCTION__, ret); | |
269 | goto out; | |
270 | } | |
271 | ||
272 | schedule(); | |
273 | out: | |
274 | remove_wait_queue(&pegasus->ctrl_wait, &wait); | |
275 | kfree(tmp); | |
276 | ||
277 | return ret; | |
278 | } | |
279 | ||
280 | static int update_eth_regs_async(pegasus_t * pegasus) | |
281 | { | |
282 | int ret; | |
283 | ||
284 | pegasus->dr.bRequestType = PEGASUS_REQT_WRITE; | |
285 | pegasus->dr.bRequest = PEGASUS_REQ_SET_REGS; | |
286 | pegasus->dr.wValue = 0; | |
287 | pegasus->dr.wIndex = cpu_to_le16(EthCtrl0); | |
288 | pegasus->dr.wLength = cpu_to_le16(3); | |
289 | pegasus->ctrl_urb->transfer_buffer_length = 3; | |
290 | ||
291 | usb_fill_control_urb(pegasus->ctrl_urb, pegasus->usb, | |
292 | usb_sndctrlpipe(pegasus->usb, 0), | |
293 | (char *) &pegasus->dr, | |
294 | pegasus->eth_regs, 3, ctrl_callback, pegasus); | |
295 | ||
296 | if ((ret = usb_submit_urb(pegasus->ctrl_urb, GFP_ATOMIC))) | |
297 | if (netif_msg_drv(pegasus)) | |
298 | dev_err(&pegasus->intf->dev, "%s, status %d\n", | |
299 | __FUNCTION__, ret); | |
300 | ||
301 | return ret; | |
302 | } | |
303 | ||
304 | static int read_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 * regd) | |
305 | { | |
306 | int i; | |
307 | __u8 data[4] = { phy, 0, 0, indx }; | |
308 | __le16 regdi; | |
309 | int ret; | |
310 | ||
311 | ret = set_register(pegasus, PhyCtrl, 0); | |
312 | ret = set_registers(pegasus, PhyAddr, sizeof (data), data); | |
313 | ret = set_register(pegasus, PhyCtrl, (indx | PHY_READ)); | |
314 | for (i = 0; i < REG_TIMEOUT; i++) { | |
315 | ret = get_registers(pegasus, PhyCtrl, 1, data); | |
316 | if (data[0] & PHY_DONE) | |
317 | break; | |
318 | } | |
319 | if (i < REG_TIMEOUT) { | |
320 | ret = get_registers(pegasus, PhyData, 2, ®di); | |
321 | *regd = le16_to_cpu(regdi); | |
322 | return 1; | |
323 | } | |
324 | if (netif_msg_drv(pegasus)) | |
325 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | static int mdio_read(struct net_device *dev, int phy_id, int loc) | |
331 | { | |
332 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); | |
333 | u16 res; | |
334 | ||
335 | read_mii_word(pegasus, phy_id, loc, &res); | |
336 | return (int)res; | |
337 | } | |
338 | ||
339 | static int write_mii_word(pegasus_t * pegasus, __u8 phy, __u8 indx, __u16 regd) | |
340 | { | |
341 | int i; | |
342 | __u8 data[4] = { phy, 0, 0, indx }; | |
343 | int ret; | |
344 | ||
345 | data[1] = (u8) regd; | |
346 | data[2] = (u8) (regd >> 8); | |
347 | ret = set_register(pegasus, PhyCtrl, 0); | |
348 | ret = set_registers(pegasus, PhyAddr, sizeof(data), data); | |
349 | ret = set_register(pegasus, PhyCtrl, (indx | PHY_WRITE)); | |
350 | for (i = 0; i < REG_TIMEOUT; i++) { | |
351 | ret = get_registers(pegasus, PhyCtrl, 1, data); | |
352 | if (data[0] & PHY_DONE) | |
353 | break; | |
354 | } | |
355 | if (i < REG_TIMEOUT) | |
356 | return 0; | |
357 | ||
358 | if (netif_msg_drv(pegasus)) | |
359 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); | |
360 | return 1; | |
361 | } | |
362 | ||
363 | static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) | |
364 | { | |
365 | pegasus_t *pegasus = (pegasus_t *) netdev_priv(dev); | |
366 | ||
367 | write_mii_word(pegasus, phy_id, loc, val); | |
368 | } | |
369 | ||
370 | static int read_eprom_word(pegasus_t * pegasus, __u8 index, __u16 * retdata) | |
371 | { | |
372 | int i; | |
373 | __u8 tmp; | |
374 | __le16 retdatai; | |
375 | int ret; | |
376 | ||
377 | ret = set_register(pegasus, EpromCtrl, 0); | |
378 | ret = set_register(pegasus, EpromOffset, index); | |
379 | ret = set_register(pegasus, EpromCtrl, EPROM_READ); | |
380 | ||
381 | for (i = 0; i < REG_TIMEOUT; i++) { | |
382 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
383 | if (tmp & EPROM_DONE) | |
384 | break; | |
385 | } | |
386 | if (i < REG_TIMEOUT) { | |
387 | ret = get_registers(pegasus, EpromData, 2, &retdatai); | |
388 | *retdata = le16_to_cpu(retdatai); | |
389 | return 0; | |
390 | } | |
391 | ||
392 | if (netif_msg_drv(pegasus)) | |
393 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); | |
394 | return -1; | |
395 | } | |
396 | ||
397 | #ifdef PEGASUS_WRITE_EEPROM | |
398 | static inline void enable_eprom_write(pegasus_t * pegasus) | |
399 | { | |
400 | __u8 tmp; | |
401 | int ret; | |
402 | ||
403 | ret = get_registers(pegasus, EthCtrl2, 1, &tmp); | |
404 | ret = set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); | |
405 | } | |
406 | ||
407 | static inline void disable_eprom_write(pegasus_t * pegasus) | |
408 | { | |
409 | __u8 tmp; | |
410 | int ret; | |
411 | ||
412 | ret = get_registers(pegasus, EthCtrl2, 1, &tmp); | |
413 | ret = set_register(pegasus, EpromCtrl, 0); | |
414 | ret = set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); | |
415 | } | |
416 | ||
417 | static int write_eprom_word(pegasus_t * pegasus, __u8 index, __u16 data) | |
418 | { | |
419 | int i; | |
420 | __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; | |
421 | int ret; | |
422 | ||
423 | ret = set_registers(pegasus, EpromOffset, 4, d); | |
424 | enable_eprom_write(pegasus); | |
425 | ret = set_register(pegasus, EpromOffset, index); | |
426 | ret = set_registers(pegasus, EpromData, 2, &data); | |
427 | ret = set_register(pegasus, EpromCtrl, EPROM_WRITE); | |
428 | ||
429 | for (i = 0; i < REG_TIMEOUT; i++) { | |
430 | ret = get_registers(pegasus, EpromCtrl, 1, &tmp); | |
431 | if (tmp & EPROM_DONE) | |
432 | break; | |
433 | } | |
434 | disable_eprom_write(pegasus); | |
435 | if (i < REG_TIMEOUT) | |
436 | return 0; | |
437 | if (netif_msg_drv(pegasus)) | |
438 | dev_warn(&pegasus->intf->dev, "fail %s\n", __FUNCTION__); | |
439 | return -1; | |
440 | } | |
441 | #endif /* PEGASUS_WRITE_EEPROM */ | |
442 | ||
443 | static inline void get_node_id(pegasus_t * pegasus, __u8 * id) | |
444 | { | |
445 | int i; | |
446 | __u16 w16; | |
447 | ||
448 | for (i = 0; i < 3; i++) { | |
449 | read_eprom_word(pegasus, i, &w16); | |
450 | ((__le16 *) id)[i] = cpu_to_le16p(&w16); | |
451 | } | |
452 | } | |
453 | ||
454 | static void set_ethernet_addr(pegasus_t * pegasus) | |
455 | { | |
456 | __u8 node_id[6]; | |
457 | int ret; | |
458 | ||
459 | get_node_id(pegasus, node_id); | |
460 | ret = set_registers(pegasus, EthID, sizeof (node_id), node_id); | |
461 | memcpy(pegasus->net->dev_addr, node_id, sizeof (node_id)); | |
462 | } | |
463 | ||
464 | static inline int reset_mac(pegasus_t * pegasus) | |
465 | { | |
466 | __u8 data = 0x8; | |
467 | int i; | |
468 | int ret; | |
469 | ||
470 | ret = set_register(pegasus, EthCtrl1, data); | |
471 | for (i = 0; i < REG_TIMEOUT; i++) { | |
472 | ret = get_registers(pegasus, EthCtrl1, 1, &data); | |
473 | if (~data & 0x08) { | |
474 | if (loopback & 1) | |
475 | break; | |
476 | if (mii_mode && (pegasus->features & HAS_HOME_PNA)) | |
477 | ret = set_register(pegasus, Gpio1, 0x34); | |
478 | else | |
479 | ret = set_register(pegasus, Gpio1, 0x26); | |
480 | ret = set_register(pegasus, Gpio0, pegasus->features); | |
481 | ret = set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); | |
482 | break; | |
483 | } | |
484 | } | |
485 | if (i == REG_TIMEOUT) | |
486 | return 1; | |
487 | ||
488 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
489 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
490 | ret = set_register(pegasus, Gpio0, 0x24); | |
491 | ret = set_register(pegasus, Gpio0, 0x26); | |
492 | } | |
493 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { | |
494 | __u16 auxmode; | |
495 | read_mii_word(pegasus, 3, 0x1b, &auxmode); | |
496 | write_mii_word(pegasus, 3, 0x1b, auxmode | 4); | |
497 | } | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) | |
503 | { | |
504 | __u16 linkpart; | |
505 | __u8 data[4]; | |
506 | pegasus_t *pegasus = netdev_priv(dev); | |
507 | int ret; | |
508 | ||
509 | read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); | |
510 | data[0] = 0xc9; | |
511 | data[1] = 0; | |
512 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) | |
513 | data[1] |= 0x20; /* set full duplex */ | |
514 | if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) | |
515 | data[1] |= 0x10; /* set 100 Mbps */ | |
516 | if (mii_mode) | |
517 | data[1] = 0; | |
518 | data[2] = (loopback & 1) ? 0x09 : 0x01; | |
519 | ||
520 | memcpy(pegasus->eth_regs, data, sizeof (data)); | |
521 | ret = set_registers(pegasus, EthCtrl0, 3, data); | |
522 | ||
523 | if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || | |
524 | usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { | |
525 | u16 auxmode; | |
526 | read_mii_word(pegasus, 0, 0x1b, &auxmode); | |
527 | write_mii_word(pegasus, 0, 0x1b, auxmode | 4); | |
528 | } | |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
533 | static void fill_skb_pool(pegasus_t * pegasus) | |
534 | { | |
535 | int i; | |
536 | ||
537 | for (i = 0; i < RX_SKBS; i++) { | |
538 | if (pegasus->rx_pool[i]) | |
539 | continue; | |
540 | pegasus->rx_pool[i] = dev_alloc_skb(PEGASUS_MTU + 2); | |
541 | /* | |
542 | ** we give up if the allocation fail. the tasklet will be | |
543 | ** rescheduled again anyway... | |
544 | */ | |
545 | if (pegasus->rx_pool[i] == NULL) | |
546 | return; | |
547 | pegasus->rx_pool[i]->dev = pegasus->net; | |
548 | skb_reserve(pegasus->rx_pool[i], 2); | |
549 | } | |
550 | } | |
551 | ||
552 | static void free_skb_pool(pegasus_t * pegasus) | |
553 | { | |
554 | int i; | |
555 | ||
556 | for (i = 0; i < RX_SKBS; i++) { | |
557 | if (pegasus->rx_pool[i]) { | |
558 | dev_kfree_skb(pegasus->rx_pool[i]); | |
559 | pegasus->rx_pool[i] = NULL; | |
560 | } | |
561 | } | |
562 | } | |
563 | ||
564 | static inline struct sk_buff *pull_skb(pegasus_t * pegasus) | |
565 | { | |
566 | int i; | |
567 | struct sk_buff *skb; | |
568 | ||
569 | for (i = 0; i < RX_SKBS; i++) { | |
570 | if (likely(pegasus->rx_pool[i] != NULL)) { | |
571 | skb = pegasus->rx_pool[i]; | |
572 | pegasus->rx_pool[i] = NULL; | |
573 | return skb; | |
574 | } | |
575 | } | |
576 | return NULL; | |
577 | } | |
578 | ||
579 | static void read_bulk_callback(struct urb *urb, struct pt_regs *regs) | |
580 | { | |
581 | pegasus_t *pegasus = urb->context; | |
582 | struct net_device *net; | |
583 | int rx_status, count = urb->actual_length; | |
584 | u8 *buf = urb->transfer_buffer; | |
585 | __u16 pkt_len; | |
586 | ||
587 | if (!pegasus) | |
588 | return; | |
589 | ||
590 | net = pegasus->net; | |
591 | if (!netif_device_present(net) || !netif_running(net)) | |
592 | return; | |
593 | ||
594 | switch (urb->status) { | |
595 | case 0: | |
596 | break; | |
597 | case -ETIMEDOUT: | |
598 | if (netif_msg_rx_err(pegasus)) | |
599 | pr_debug("%s: reset MAC\n", net->name); | |
600 | pegasus->flags &= ~PEGASUS_RX_BUSY; | |
601 | break; | |
602 | case -EPIPE: /* stall, or disconnect from TT */ | |
603 | /* FIXME schedule work to clear the halt */ | |
604 | if (netif_msg_rx_err(pegasus)) | |
605 | printk(KERN_WARNING "%s: no rx stall recovery\n", | |
606 | net->name); | |
607 | return; | |
608 | case -ENOENT: | |
609 | case -ECONNRESET: | |
610 | case -ESHUTDOWN: | |
611 | if (netif_msg_ifdown(pegasus)) | |
612 | pr_debug("%s: rx unlink, %d\n", net->name, urb->status); | |
613 | return; | |
614 | default: | |
615 | if (netif_msg_rx_err(pegasus)) | |
616 | pr_debug("%s: RX status %d\n", net->name, urb->status); | |
617 | goto goon; | |
618 | } | |
619 | ||
620 | if (!count || count < 4) | |
621 | goto goon; | |
622 | ||
623 | rx_status = buf[count - 2]; | |
624 | if (rx_status & 0x1e) { | |
625 | if (netif_msg_rx_err(pegasus)) | |
626 | pr_debug("%s: RX packet error %x\n", | |
627 | net->name, rx_status); | |
628 | pegasus->stats.rx_errors++; | |
629 | if (rx_status & 0x06) // long or runt | |
630 | pegasus->stats.rx_length_errors++; | |
631 | if (rx_status & 0x08) | |
632 | pegasus->stats.rx_crc_errors++; | |
633 | if (rx_status & 0x10) // extra bits | |
634 | pegasus->stats.rx_frame_errors++; | |
635 | goto goon; | |
636 | } | |
637 | if (pegasus->chip == 0x8513) { | |
638 | pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); | |
639 | pkt_len &= 0x0fff; | |
640 | pegasus->rx_skb->data += 2; | |
641 | } else { | |
642 | pkt_len = buf[count - 3] << 8; | |
643 | pkt_len += buf[count - 4]; | |
644 | pkt_len &= 0xfff; | |
645 | pkt_len -= 8; | |
646 | } | |
647 | ||
a85a46f2 KV |
648 | /* |
649 | * If the packet is unreasonably long, quietly drop it rather than | |
650 | * kernel panicing by calling skb_put. | |
651 | */ | |
652 | if (pkt_len > PEGASUS_MTU) | |
653 | goto goon; | |
654 | ||
1da177e4 LT |
655 | /* |
656 | * at this point we are sure pegasus->rx_skb != NULL | |
657 | * so we go ahead and pass up the packet. | |
658 | */ | |
659 | skb_put(pegasus->rx_skb, pkt_len); | |
660 | pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); | |
661 | netif_rx(pegasus->rx_skb); | |
662 | pegasus->stats.rx_packets++; | |
663 | pegasus->stats.rx_bytes += pkt_len; | |
664 | ||
665 | if (pegasus->flags & PEGASUS_UNPLUG) | |
666 | return; | |
667 | ||
668 | spin_lock(&pegasus->rx_pool_lock); | |
669 | pegasus->rx_skb = pull_skb(pegasus); | |
670 | spin_unlock(&pegasus->rx_pool_lock); | |
671 | ||
672 | if (pegasus->rx_skb == NULL) | |
673 | goto tl_sched; | |
674 | goon: | |
675 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
676 | usb_rcvbulkpipe(pegasus->usb, 1), | |
677 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
678 | read_bulk_callback, pegasus); | |
679 | if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) { | |
680 | pegasus->flags |= PEGASUS_RX_URB_FAIL; | |
681 | goto tl_sched; | |
682 | } else { | |
683 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
684 | } | |
685 | ||
686 | return; | |
687 | ||
688 | tl_sched: | |
689 | tasklet_schedule(&pegasus->rx_tl); | |
690 | } | |
691 | ||
692 | static void rx_fixup(unsigned long data) | |
693 | { | |
694 | pegasus_t *pegasus; | |
695 | unsigned long flags; | |
696 | ||
697 | pegasus = (pegasus_t *) data; | |
698 | if (pegasus->flags & PEGASUS_UNPLUG) | |
699 | return; | |
700 | ||
701 | spin_lock_irqsave(&pegasus->rx_pool_lock, flags); | |
702 | fill_skb_pool(pegasus); | |
703 | if (pegasus->flags & PEGASUS_RX_URB_FAIL) | |
704 | if (pegasus->rx_skb) | |
705 | goto try_again; | |
706 | if (pegasus->rx_skb == NULL) { | |
707 | pegasus->rx_skb = pull_skb(pegasus); | |
708 | } | |
709 | if (pegasus->rx_skb == NULL) { | |
710 | if (netif_msg_rx_err(pegasus)) | |
711 | printk(KERN_WARNING "%s: low on memory\n", | |
712 | pegasus->net->name); | |
713 | tasklet_schedule(&pegasus->rx_tl); | |
714 | goto done; | |
715 | } | |
716 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
717 | usb_rcvbulkpipe(pegasus->usb, 1), | |
718 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
719 | read_bulk_callback, pegasus); | |
720 | try_again: | |
721 | if (usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC)) { | |
722 | pegasus->flags |= PEGASUS_RX_URB_FAIL; | |
723 | tasklet_schedule(&pegasus->rx_tl); | |
724 | } else { | |
725 | pegasus->flags &= ~PEGASUS_RX_URB_FAIL; | |
726 | } | |
727 | done: | |
728 | spin_unlock_irqrestore(&pegasus->rx_pool_lock, flags); | |
729 | } | |
730 | ||
731 | static void write_bulk_callback(struct urb *urb, struct pt_regs *regs) | |
732 | { | |
733 | pegasus_t *pegasus = urb->context; | |
734 | struct net_device *net = pegasus->net; | |
735 | ||
736 | if (!pegasus) | |
737 | return; | |
738 | ||
739 | if (!netif_device_present(net) || !netif_running(net)) | |
740 | return; | |
741 | ||
742 | switch (urb->status) { | |
743 | case -EPIPE: | |
744 | /* FIXME schedule_work() to clear the tx halt */ | |
745 | netif_stop_queue(net); | |
746 | if (netif_msg_tx_err(pegasus)) | |
747 | printk(KERN_WARNING "%s: no tx stall recovery\n", | |
748 | net->name); | |
749 | return; | |
750 | case -ENOENT: | |
751 | case -ECONNRESET: | |
752 | case -ESHUTDOWN: | |
753 | if (netif_msg_ifdown(pegasus)) | |
754 | pr_debug("%s: tx unlink, %d\n", net->name, urb->status); | |
755 | return; | |
756 | default: | |
757 | if (netif_msg_tx_err(pegasus)) | |
758 | pr_info("%s: TX status %d\n", net->name, urb->status); | |
759 | /* FALL THROUGH */ | |
760 | case 0: | |
761 | break; | |
762 | } | |
763 | ||
764 | net->trans_start = jiffies; | |
765 | netif_wake_queue(net); | |
766 | } | |
767 | ||
768 | static void intr_callback(struct urb *urb, struct pt_regs *regs) | |
769 | { | |
770 | pegasus_t *pegasus = urb->context; | |
771 | struct net_device *net; | |
772 | int status; | |
773 | ||
774 | if (!pegasus) | |
775 | return; | |
776 | net = pegasus->net; | |
777 | ||
778 | switch (urb->status) { | |
779 | case 0: | |
780 | break; | |
781 | case -ECONNRESET: /* unlink */ | |
782 | case -ENOENT: | |
783 | case -ESHUTDOWN: | |
784 | return; | |
785 | default: | |
786 | /* some Pegasus-I products report LOTS of data | |
787 | * toggle errors... avoid log spamming | |
788 | */ | |
789 | if (netif_msg_timer(pegasus)) | |
790 | pr_debug("%s: intr status %d\n", net->name, | |
791 | urb->status); | |
792 | } | |
793 | ||
794 | if (urb->actual_length >= 6) { | |
795 | u8 * d = urb->transfer_buffer; | |
796 | ||
797 | /* byte 0 == tx_status1, reg 2B */ | |
798 | if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL | |
799 | |LATE_COL|JABBER_TIMEOUT)) { | |
800 | pegasus->stats.tx_errors++; | |
801 | if (d[0] & TX_UNDERRUN) | |
802 | pegasus->stats.tx_fifo_errors++; | |
803 | if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) | |
804 | pegasus->stats.tx_aborted_errors++; | |
805 | if (d[0] & LATE_COL) | |
806 | pegasus->stats.tx_window_errors++; | |
807 | } | |
808 | ||
809 | /* d[5].LINK_STATUS lies on some adapters. | |
810 | * d[0].NO_CARRIER kicks in only with failed TX. | |
811 | * ... so monitoring with MII may be safest. | |
812 | */ | |
813 | if (d[0] & NO_CARRIER) | |
814 | netif_carrier_off(net); | |
815 | else | |
816 | netif_carrier_on(net); | |
817 | ||
818 | /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ | |
819 | pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; | |
820 | } | |
821 | ||
822 | status = usb_submit_urb(urb, SLAB_ATOMIC); | |
823 | if (status && netif_msg_timer(pegasus)) | |
824 | printk(KERN_ERR "%s: can't resubmit interrupt urb, %d\n", | |
825 | net->name, status); | |
826 | } | |
827 | ||
828 | static void pegasus_tx_timeout(struct net_device *net) | |
829 | { | |
830 | pegasus_t *pegasus = netdev_priv(net); | |
831 | if (netif_msg_timer(pegasus)) | |
832 | printk(KERN_WARNING "%s: tx timeout\n", net->name); | |
1da177e4 LT |
833 | usb_unlink_urb(pegasus->tx_urb); |
834 | pegasus->stats.tx_errors++; | |
835 | } | |
836 | ||
837 | static int pegasus_start_xmit(struct sk_buff *skb, struct net_device *net) | |
838 | { | |
839 | pegasus_t *pegasus = netdev_priv(net); | |
840 | int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; | |
841 | int res; | |
842 | __u16 l16 = skb->len; | |
843 | ||
844 | netif_stop_queue(net); | |
845 | ||
846 | ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); | |
847 | memcpy(pegasus->tx_buff + 2, skb->data, skb->len); | |
848 | usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, | |
849 | usb_sndbulkpipe(pegasus->usb, 2), | |
850 | pegasus->tx_buff, count, | |
851 | write_bulk_callback, pegasus); | |
852 | if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { | |
853 | if (netif_msg_tx_err(pegasus)) | |
854 | printk(KERN_WARNING "%s: fail tx, %d\n", | |
855 | net->name, res); | |
856 | switch (res) { | |
857 | case -EPIPE: /* stall, or disconnect from TT */ | |
858 | /* cleanup should already have been scheduled */ | |
859 | break; | |
860 | case -ENODEV: /* disconnect() upcoming */ | |
861 | break; | |
862 | default: | |
863 | pegasus->stats.tx_errors++; | |
864 | netif_start_queue(net); | |
865 | } | |
866 | } else { | |
867 | pegasus->stats.tx_packets++; | |
868 | pegasus->stats.tx_bytes += skb->len; | |
869 | net->trans_start = jiffies; | |
870 | } | |
871 | dev_kfree_skb(skb); | |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) | |
877 | { | |
878 | return &((pegasus_t *) netdev_priv(dev))->stats; | |
879 | } | |
880 | ||
881 | static inline void disable_net_traffic(pegasus_t * pegasus) | |
882 | { | |
883 | int tmp = 0; | |
884 | int ret; | |
885 | ||
886 | ret = set_registers(pegasus, EthCtrl0, 2, &tmp); | |
887 | } | |
888 | ||
889 | static inline void get_interrupt_interval(pegasus_t * pegasus) | |
890 | { | |
891 | __u8 data[2]; | |
892 | ||
893 | read_eprom_word(pegasus, 4, (__u16 *) data); | |
a85a46f2 KV |
894 | if (pegasus->usb->speed != USB_SPEED_HIGH) { |
895 | if (data[1] < 0x80) { | |
896 | if (netif_msg_timer(pegasus)) | |
897 | dev_info(&pegasus->intf->dev, "intr interval " | |
898 | "changed from %ums to %ums\n", | |
899 | data[1], 0x80); | |
900 | data[1] = 0x80; | |
901 | #ifdef PEGASUS_WRITE_EEPROM | |
902 | write_eprom_word(pegasus, 4, *(__u16 *) data); | |
1da177e4 | 903 | #endif |
a85a46f2 | 904 | } |
1da177e4 LT |
905 | } |
906 | pegasus->intr_interval = data[1]; | |
907 | } | |
908 | ||
909 | static void set_carrier(struct net_device *net) | |
910 | { | |
911 | pegasus_t *pegasus = netdev_priv(net); | |
912 | u16 tmp; | |
913 | ||
a85a46f2 | 914 | if (!read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) |
1da177e4 | 915 | return; |
a85a46f2 | 916 | |
1da177e4 LT |
917 | if (tmp & BMSR_LSTATUS) |
918 | netif_carrier_on(net); | |
919 | else | |
920 | netif_carrier_off(net); | |
921 | } | |
922 | ||
923 | static void free_all_urbs(pegasus_t * pegasus) | |
924 | { | |
925 | usb_free_urb(pegasus->intr_urb); | |
926 | usb_free_urb(pegasus->tx_urb); | |
927 | usb_free_urb(pegasus->rx_urb); | |
928 | usb_free_urb(pegasus->ctrl_urb); | |
929 | } | |
930 | ||
931 | static void unlink_all_urbs(pegasus_t * pegasus) | |
932 | { | |
933 | usb_kill_urb(pegasus->intr_urb); | |
934 | usb_kill_urb(pegasus->tx_urb); | |
935 | usb_kill_urb(pegasus->rx_urb); | |
936 | usb_kill_urb(pegasus->ctrl_urb); | |
937 | } | |
938 | ||
939 | static int alloc_urbs(pegasus_t * pegasus) | |
940 | { | |
941 | pegasus->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
942 | if (!pegasus->ctrl_urb) { | |
943 | return 0; | |
944 | } | |
945 | pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
946 | if (!pegasus->rx_urb) { | |
947 | usb_free_urb(pegasus->ctrl_urb); | |
948 | return 0; | |
949 | } | |
950 | pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
951 | if (!pegasus->tx_urb) { | |
952 | usb_free_urb(pegasus->rx_urb); | |
953 | usb_free_urb(pegasus->ctrl_urb); | |
954 | return 0; | |
955 | } | |
956 | pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); | |
957 | if (!pegasus->intr_urb) { | |
958 | usb_free_urb(pegasus->tx_urb); | |
959 | usb_free_urb(pegasus->rx_urb); | |
960 | usb_free_urb(pegasus->ctrl_urb); | |
961 | return 0; | |
962 | } | |
963 | ||
964 | return 1; | |
965 | } | |
966 | ||
967 | static int pegasus_open(struct net_device *net) | |
968 | { | |
969 | pegasus_t *pegasus = netdev_priv(net); | |
970 | int res; | |
971 | ||
972 | if (pegasus->rx_skb == NULL) | |
973 | pegasus->rx_skb = pull_skb(pegasus); | |
974 | /* | |
975 | ** Note: no point to free the pool. it is empty :-) | |
976 | */ | |
977 | if (!pegasus->rx_skb) | |
978 | return -ENOMEM; | |
979 | ||
980 | res = set_registers(pegasus, EthID, 6, net->dev_addr); | |
981 | ||
982 | usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, | |
983 | usb_rcvbulkpipe(pegasus->usb, 1), | |
984 | pegasus->rx_skb->data, PEGASUS_MTU + 8, | |
985 | read_bulk_callback, pegasus); | |
986 | if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { | |
987 | if (netif_msg_ifup(pegasus)) | |
988 | pr_debug("%s: failed rx_urb, %d", net->name, res); | |
989 | goto exit; | |
990 | } | |
991 | ||
992 | usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, | |
993 | usb_rcvintpipe(pegasus->usb, 3), | |
994 | pegasus->intr_buff, sizeof (pegasus->intr_buff), | |
995 | intr_callback, pegasus, pegasus->intr_interval); | |
996 | if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { | |
997 | if (netif_msg_ifup(pegasus)) | |
998 | pr_debug("%s: failed intr_urb, %d\n", net->name, res); | |
999 | usb_kill_urb(pegasus->rx_urb); | |
1000 | goto exit; | |
1001 | } | |
1002 | if ((res = enable_net_traffic(net, pegasus->usb))) { | |
1003 | if (netif_msg_ifup(pegasus)) | |
1004 | pr_debug("%s: can't enable_net_traffic() - %d\n", | |
1005 | net->name, res); | |
1006 | res = -EIO; | |
1007 | usb_kill_urb(pegasus->rx_urb); | |
1008 | usb_kill_urb(pegasus->intr_urb); | |
1009 | free_skb_pool(pegasus); | |
1010 | goto exit; | |
1011 | } | |
1012 | set_carrier(net); | |
1013 | netif_start_queue(net); | |
1014 | if (netif_msg_ifup(pegasus)) | |
1015 | pr_debug("%s: open\n", net->name); | |
1016 | res = 0; | |
1017 | exit: | |
1018 | return res; | |
1019 | } | |
1020 | ||
1021 | static int pegasus_close(struct net_device *net) | |
1022 | { | |
1023 | pegasus_t *pegasus = netdev_priv(net); | |
1024 | ||
1025 | netif_stop_queue(net); | |
1026 | if (!(pegasus->flags & PEGASUS_UNPLUG)) | |
1027 | disable_net_traffic(pegasus); | |
1028 | tasklet_kill(&pegasus->rx_tl); | |
1029 | unlink_all_urbs(pegasus); | |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
1034 | static void pegasus_get_drvinfo(struct net_device *dev, | |
1035 | struct ethtool_drvinfo *info) | |
1036 | { | |
1037 | pegasus_t *pegasus = netdev_priv(dev); | |
1038 | strncpy(info->driver, driver_name, sizeof (info->driver) - 1); | |
1039 | strncpy(info->version, DRIVER_VERSION, sizeof (info->version) - 1); | |
1040 | usb_make_path(pegasus->usb, info->bus_info, sizeof (info->bus_info)); | |
1041 | } | |
1042 | ||
1043 | /* also handles three patterns of some kind in hardware */ | |
1044 | #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) | |
1045 | ||
1046 | static void | |
1047 | pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1048 | { | |
1049 | pegasus_t *pegasus = netdev_priv(dev); | |
1050 | ||
1051 | wol->supported = WAKE_MAGIC | WAKE_PHY; | |
1052 | wol->wolopts = pegasus->wolopts; | |
1053 | } | |
1054 | ||
1055 | static int | |
1056 | pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) | |
1057 | { | |
1058 | pegasus_t *pegasus = netdev_priv(dev); | |
1059 | u8 reg78 = 0x04; | |
1060 | ||
1061 | if (wol->wolopts & ~WOL_SUPPORTED) | |
1062 | return -EINVAL; | |
1063 | ||
1064 | if (wol->wolopts & WAKE_MAGIC) | |
1065 | reg78 |= 0x80; | |
1066 | if (wol->wolopts & WAKE_PHY) | |
1067 | reg78 |= 0x40; | |
1068 | /* FIXME this 0x10 bit still needs to get set in the chip... */ | |
1069 | if (wol->wolopts) | |
1070 | pegasus->eth_regs[0] |= 0x10; | |
1071 | else | |
1072 | pegasus->eth_regs[0] &= ~0x10; | |
1073 | pegasus->wolopts = wol->wolopts; | |
1074 | return set_register(pegasus, WakeupControl, reg78); | |
1075 | } | |
1076 | ||
1077 | static inline void pegasus_reset_wol(struct net_device *dev) | |
1078 | { | |
1079 | struct ethtool_wolinfo wol; | |
1080 | ||
1081 | memset(&wol, 0, sizeof wol); | |
1082 | (void) pegasus_set_wol(dev, &wol); | |
1083 | } | |
1084 | ||
1085 | static int | |
1086 | pegasus_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1087 | { | |
1088 | pegasus_t *pegasus; | |
1089 | ||
1090 | if (in_atomic()) | |
1091 | return 0; | |
1092 | ||
1093 | pegasus = netdev_priv(dev); | |
1094 | mii_ethtool_gset(&pegasus->mii, ecmd); | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | static int | |
1100 | pegasus_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd) | |
1101 | { | |
1102 | pegasus_t *pegasus = netdev_priv(dev); | |
1103 | return mii_ethtool_sset(&pegasus->mii, ecmd); | |
1104 | } | |
1105 | ||
1106 | static int pegasus_nway_reset(struct net_device *dev) | |
1107 | { | |
1108 | pegasus_t *pegasus = netdev_priv(dev); | |
1109 | return mii_nway_restart(&pegasus->mii); | |
1110 | } | |
1111 | ||
1112 | static u32 pegasus_get_link(struct net_device *dev) | |
1113 | { | |
1114 | pegasus_t *pegasus = netdev_priv(dev); | |
1115 | return mii_link_ok(&pegasus->mii); | |
1116 | } | |
1117 | ||
1118 | static u32 pegasus_get_msglevel(struct net_device *dev) | |
1119 | { | |
1120 | pegasus_t *pegasus = netdev_priv(dev); | |
1121 | return pegasus->msg_enable; | |
1122 | } | |
1123 | ||
1124 | static void pegasus_set_msglevel(struct net_device *dev, u32 v) | |
1125 | { | |
1126 | pegasus_t *pegasus = netdev_priv(dev); | |
1127 | pegasus->msg_enable = v; | |
1128 | } | |
1129 | ||
1130 | static struct ethtool_ops ops = { | |
1131 | .get_drvinfo = pegasus_get_drvinfo, | |
1132 | .get_settings = pegasus_get_settings, | |
1133 | .set_settings = pegasus_set_settings, | |
1134 | .nway_reset = pegasus_nway_reset, | |
1135 | .get_link = pegasus_get_link, | |
1136 | .get_msglevel = pegasus_get_msglevel, | |
1137 | .set_msglevel = pegasus_set_msglevel, | |
1138 | .get_wol = pegasus_get_wol, | |
1139 | .set_wol = pegasus_set_wol, | |
1140 | }; | |
1141 | ||
1142 | static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) | |
1143 | { | |
1144 | __u16 *data = (__u16 *) & rq->ifr_ifru; | |
1145 | pegasus_t *pegasus = netdev_priv(net); | |
1146 | int res; | |
1147 | ||
1148 | switch (cmd) { | |
1149 | case SIOCDEVPRIVATE: | |
1150 | data[0] = pegasus->phy; | |
1151 | case SIOCDEVPRIVATE + 1: | |
1152 | read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); | |
1153 | res = 0; | |
1154 | break; | |
1155 | case SIOCDEVPRIVATE + 2: | |
1156 | if (!capable(CAP_NET_ADMIN)) | |
1157 | return -EPERM; | |
1158 | write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, data[2]); | |
1159 | res = 0; | |
1160 | break; | |
1161 | default: | |
1162 | res = -EOPNOTSUPP; | |
1163 | } | |
1164 | return res; | |
1165 | } | |
1166 | ||
1167 | static void pegasus_set_multicast(struct net_device *net) | |
1168 | { | |
1169 | pegasus_t *pegasus = netdev_priv(net); | |
1170 | ||
1171 | if (net->flags & IFF_PROMISC) { | |
1172 | pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; | |
1173 | if (netif_msg_link(pegasus)) | |
1174 | pr_info("%s: Promiscuous mode enabled.\n", net->name); | |
ae0a97bf | 1175 | } else if (net->mc_count || |
1da177e4 LT |
1176 | (net->flags & IFF_ALLMULTI)) { |
1177 | pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; | |
1178 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1179 | if (netif_msg_link(pegasus)) | |
1180 | pr_info("%s: set allmulti\n", net->name); | |
1181 | } else { | |
1182 | pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; | |
1183 | pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; | |
1184 | } | |
1185 | ||
1186 | pegasus->flags |= ETH_REGS_CHANGE; | |
1187 | ctrl_callback(pegasus->ctrl_urb, NULL); | |
1188 | } | |
1189 | ||
1190 | static __u8 mii_phy_probe(pegasus_t * pegasus) | |
1191 | { | |
1192 | int i; | |
1193 | __u16 tmp; | |
1194 | ||
1195 | for (i = 0; i < 32; i++) { | |
1196 | read_mii_word(pegasus, i, MII_BMSR, &tmp); | |
1197 | if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) | |
1198 | continue; | |
1199 | else | |
1200 | return i; | |
1201 | } | |
1202 | ||
1203 | return 0xff; | |
1204 | } | |
1205 | ||
1206 | static inline void setup_pegasus_II(pegasus_t * pegasus) | |
1207 | { | |
1208 | __u8 data = 0xa5; | |
1209 | int ret; | |
1210 | ||
1211 | ret = set_register(pegasus, Reg1d, 0); | |
1212 | ret = set_register(pegasus, Reg7b, 1); | |
1213 | mdelay(100); | |
1214 | if ((pegasus->features & HAS_HOME_PNA) && mii_mode) | |
1215 | ret = set_register(pegasus, Reg7b, 0); | |
1216 | else | |
1217 | ret = set_register(pegasus, Reg7b, 2); | |
1218 | ||
1219 | ret = set_register(pegasus, 0x83, data); | |
1220 | ret = get_registers(pegasus, 0x83, 1, &data); | |
1221 | ||
1222 | if (data == 0xa5) { | |
1223 | pegasus->chip = 0x8513; | |
1224 | } else { | |
1225 | pegasus->chip = 0; | |
1226 | } | |
1227 | ||
1228 | ret = set_register(pegasus, 0x80, 0xc0); | |
1229 | ret = set_register(pegasus, 0x83, 0xff); | |
1230 | ret = set_register(pegasus, 0x84, 0x01); | |
1231 | ||
1232 | if (pegasus->features & HAS_HOME_PNA && mii_mode) | |
1233 | ret = set_register(pegasus, Reg81, 6); | |
1234 | else | |
1235 | ret = set_register(pegasus, Reg81, 2); | |
1236 | } | |
1237 | ||
1238 | ||
1239 | static struct workqueue_struct *pegasus_workqueue = NULL; | |
1240 | #define CARRIER_CHECK_DELAY (2 * HZ) | |
1241 | ||
1242 | static void check_carrier(void *data) | |
1243 | { | |
1244 | pegasus_t *pegasus = data; | |
1245 | set_carrier(pegasus->net); | |
1246 | if (!(pegasus->flags & PEGASUS_UNPLUG)) { | |
1247 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1248 | CARRIER_CHECK_DELAY); | |
1249 | } | |
1250 | } | |
1251 | ||
1252 | static int pegasus_probe(struct usb_interface *intf, | |
1253 | const struct usb_device_id *id) | |
1254 | { | |
1255 | struct usb_device *dev = interface_to_usbdev(intf); | |
1256 | struct net_device *net; | |
1257 | pegasus_t *pegasus; | |
1258 | int dev_index = id - pegasus_ids; | |
1259 | int res = -ENOMEM; | |
1260 | ||
1261 | usb_get_dev(dev); | |
1262 | net = alloc_etherdev(sizeof(struct pegasus)); | |
1263 | if (!net) { | |
1264 | dev_err(&intf->dev, "can't allocate %s\n", "device"); | |
1265 | goto out; | |
1266 | } | |
1267 | ||
1268 | pegasus = netdev_priv(net); | |
1269 | memset(pegasus, 0, sizeof (struct pegasus)); | |
1270 | pegasus->dev_index = dev_index; | |
1271 | init_waitqueue_head(&pegasus->ctrl_wait); | |
1272 | ||
1273 | if (!alloc_urbs(pegasus)) { | |
1274 | dev_err(&intf->dev, "can't allocate %s\n", "urbs"); | |
1275 | goto out1; | |
1276 | } | |
1277 | ||
1278 | tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); | |
1279 | ||
1280 | INIT_WORK(&pegasus->carrier_check, check_carrier, pegasus); | |
1281 | ||
1282 | pegasus->intf = intf; | |
1283 | pegasus->usb = dev; | |
1284 | pegasus->net = net; | |
1285 | SET_MODULE_OWNER(net); | |
1286 | net->open = pegasus_open; | |
1287 | net->stop = pegasus_close; | |
1288 | net->watchdog_timeo = PEGASUS_TX_TIMEOUT; | |
1289 | net->tx_timeout = pegasus_tx_timeout; | |
1290 | net->do_ioctl = pegasus_ioctl; | |
1291 | net->hard_start_xmit = pegasus_start_xmit; | |
1292 | net->set_multicast_list = pegasus_set_multicast; | |
1293 | net->get_stats = pegasus_netdev_stats; | |
1294 | SET_ETHTOOL_OPS(net, &ops); | |
1295 | pegasus->mii.dev = net; | |
1296 | pegasus->mii.mdio_read = mdio_read; | |
1297 | pegasus->mii.mdio_write = mdio_write; | |
1298 | pegasus->mii.phy_id_mask = 0x1f; | |
1299 | pegasus->mii.reg_num_mask = 0x1f; | |
1300 | spin_lock_init(&pegasus->rx_pool_lock); | |
1301 | pegasus->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV | |
1302 | | NETIF_MSG_PROBE | NETIF_MSG_LINK); | |
1303 | ||
1304 | pegasus->features = usb_dev_id[dev_index].private; | |
1305 | get_interrupt_interval(pegasus); | |
1306 | if (reset_mac(pegasus)) { | |
1307 | dev_err(&intf->dev, "can't reset MAC\n"); | |
1308 | res = -EIO; | |
1309 | goto out2; | |
1310 | } | |
1311 | set_ethernet_addr(pegasus); | |
1312 | fill_skb_pool(pegasus); | |
1313 | if (pegasus->features & PEGASUS_II) { | |
1314 | dev_info(&intf->dev, "setup Pegasus II specific registers\n"); | |
1315 | setup_pegasus_II(pegasus); | |
1316 | } | |
1317 | pegasus->phy = mii_phy_probe(pegasus); | |
1318 | if (pegasus->phy == 0xff) { | |
1319 | dev_warn(&intf->dev, "can't locate MII phy, using default\n"); | |
1320 | pegasus->phy = 1; | |
1321 | } | |
1322 | pegasus->mii.phy_id = pegasus->phy; | |
1323 | usb_set_intfdata(intf, pegasus); | |
1324 | SET_NETDEV_DEV(net, &intf->dev); | |
1325 | pegasus_reset_wol(net); | |
1326 | res = register_netdev(net); | |
1327 | if (res) | |
1328 | goto out3; | |
1329 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1330 | CARRIER_CHECK_DELAY); | |
1331 | ||
1332 | dev_info(&intf->dev, "%s, %s, %02x:%02x:%02x:%02x:%02x:%02x\n", | |
1333 | net->name, | |
1334 | usb_dev_id[dev_index].name, | |
1335 | net->dev_addr [0], net->dev_addr [1], | |
1336 | net->dev_addr [2], net->dev_addr [3], | |
1337 | net->dev_addr [4], net->dev_addr [5]); | |
1338 | return 0; | |
1339 | ||
1340 | out3: | |
1341 | usb_set_intfdata(intf, NULL); | |
1342 | free_skb_pool(pegasus); | |
1343 | out2: | |
1344 | free_all_urbs(pegasus); | |
1345 | out1: | |
1346 | free_netdev(net); | |
1347 | out: | |
1348 | usb_put_dev(dev); | |
1349 | return res; | |
1350 | } | |
1351 | ||
1352 | static void pegasus_disconnect(struct usb_interface *intf) | |
1353 | { | |
1354 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1355 | ||
1356 | usb_set_intfdata(intf, NULL); | |
1357 | if (!pegasus) { | |
1358 | dev_dbg(&intf->dev, "unregistering non-bound device?\n"); | |
1359 | return; | |
1360 | } | |
1361 | ||
1362 | pegasus->flags |= PEGASUS_UNPLUG; | |
1363 | cancel_delayed_work(&pegasus->carrier_check); | |
1364 | unregister_netdev(pegasus->net); | |
1365 | usb_put_dev(interface_to_usbdev(intf)); | |
a85a46f2 | 1366 | unlink_all_urbs(pegasus); |
1da177e4 LT |
1367 | free_all_urbs(pegasus); |
1368 | free_skb_pool(pegasus); | |
1369 | if (pegasus->rx_skb) | |
1370 | dev_kfree_skb(pegasus->rx_skb); | |
1371 | free_netdev(pegasus->net); | |
1372 | } | |
1373 | ||
27d72e85 | 1374 | static int pegasus_suspend (struct usb_interface *intf, pm_message_t message) |
1da177e4 LT |
1375 | { |
1376 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1377 | ||
1378 | netif_device_detach (pegasus->net); | |
27d72e85 DB |
1379 | if (netif_running(pegasus->net)) { |
1380 | cancel_delayed_work(&pegasus->carrier_check); | |
1381 | ||
1382 | usb_kill_urb(pegasus->rx_urb); | |
1383 | usb_kill_urb(pegasus->intr_urb); | |
1384 | } | |
1da177e4 LT |
1385 | return 0; |
1386 | } | |
1387 | ||
1388 | static int pegasus_resume (struct usb_interface *intf) | |
1389 | { | |
1390 | struct pegasus *pegasus = usb_get_intfdata(intf); | |
1391 | ||
1392 | netif_device_attach (pegasus->net); | |
27d72e85 DB |
1393 | if (netif_running(pegasus->net)) { |
1394 | pegasus->rx_urb->status = 0; | |
1395 | pegasus->rx_urb->actual_length = 0; | |
9727d04a | 1396 | read_bulk_callback(pegasus->rx_urb, NULL); |
27d72e85 DB |
1397 | |
1398 | pegasus->intr_urb->status = 0; | |
1399 | pegasus->intr_urb->actual_length = 0; | |
9727d04a | 1400 | intr_callback(pegasus->intr_urb, NULL); |
27d72e85 DB |
1401 | |
1402 | queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, | |
1403 | CARRIER_CHECK_DELAY); | |
1404 | } | |
1da177e4 LT |
1405 | return 0; |
1406 | } | |
1407 | ||
1408 | static struct usb_driver pegasus_driver = { | |
1409 | .name = driver_name, | |
1410 | .probe = pegasus_probe, | |
1411 | .disconnect = pegasus_disconnect, | |
1412 | .id_table = pegasus_ids, | |
1413 | .suspend = pegasus_suspend, | |
1414 | .resume = pegasus_resume, | |
1415 | }; | |
1416 | ||
1417 | static int __init pegasus_init(void) | |
1418 | { | |
1419 | pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); | |
1420 | pegasus_workqueue = create_singlethread_workqueue("pegasus"); | |
1421 | if (!pegasus_workqueue) | |
1422 | return -ENOMEM; | |
1423 | return usb_register(&pegasus_driver); | |
1424 | } | |
1425 | ||
1426 | static void __exit pegasus_exit(void) | |
1427 | { | |
1428 | destroy_workqueue(pegasus_workqueue); | |
1429 | usb_deregister(&pegasus_driver); | |
1430 | } | |
1431 | ||
1432 | module_init(pegasus_init); | |
1433 | module_exit(pegasus_exit); |