Root/
1 | /* |
2 | * PCMCIA 16-bit resource management functions |
3 | * |
4 | * The initial developer of the original code is David A. Hinds |
5 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
6 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
7 | * |
8 | * Copyright (C) 1999 David A. Hinds |
9 | * Copyright (C) 2004-2005 Dominik Brodowski |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify |
12 | * it under the terms of the GNU General Public License version 2 as |
13 | * published by the Free Software Foundation. |
14 | * |
15 | */ |
16 | |
17 | #include <linux/module.h> |
18 | #include <linux/kernel.h> |
19 | #include <linux/interrupt.h> |
20 | #include <linux/delay.h> |
21 | #include <linux/pci.h> |
22 | #include <linux/device.h> |
23 | #include <linux/netdevice.h> |
24 | #include <linux/slab.h> |
25 | |
26 | #include <pcmcia/cs_types.h> |
27 | #include <pcmcia/ss.h> |
28 | #include <pcmcia/cs.h> |
29 | #include <pcmcia/cistpl.h> |
30 | #include <pcmcia/cisreg.h> |
31 | #include <pcmcia/ds.h> |
32 | |
33 | #include "cs_internal.h" |
34 | |
35 | |
36 | /* Access speed for IO windows */ |
37 | static int io_speed; |
38 | module_param(io_speed, int, 0444); |
39 | |
40 | |
41 | #ifdef CONFIG_PCMCIA_PROBE |
42 | #include <asm/irq.h> |
43 | /* mask of IRQs already reserved by other cards, we should avoid using them */ |
44 | static u8 pcmcia_used_irq[NR_IRQS]; |
45 | #endif |
46 | |
47 | static int pcmcia_adjust_io_region(struct resource *res, unsigned long start, |
48 | unsigned long end, struct pcmcia_socket *s) |
49 | { |
50 | if (s->resource_ops->adjust_io_region) |
51 | return s->resource_ops->adjust_io_region(res, start, end, s); |
52 | return -ENOMEM; |
53 | } |
54 | |
55 | static struct resource *pcmcia_find_io_region(unsigned long base, int num, |
56 | unsigned long align, |
57 | struct pcmcia_socket *s) |
58 | { |
59 | if (s->resource_ops->find_io) |
60 | return s->resource_ops->find_io(base, num, align, s); |
61 | return NULL; |
62 | } |
63 | |
64 | int pcmcia_validate_mem(struct pcmcia_socket *s) |
65 | { |
66 | if (s->resource_ops->validate_mem) |
67 | return s->resource_ops->validate_mem(s); |
68 | /* if there is no callback, we can assume that everything is OK */ |
69 | return 0; |
70 | } |
71 | |
72 | struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, |
73 | int low, struct pcmcia_socket *s) |
74 | { |
75 | if (s->resource_ops->find_mem) |
76 | return s->resource_ops->find_mem(base, num, align, low, s); |
77 | return NULL; |
78 | } |
79 | |
80 | |
81 | /** alloc_io_space |
82 | * |
83 | * Special stuff for managing IO windows, because they are scarce |
84 | */ |
85 | |
86 | static int alloc_io_space(struct pcmcia_socket *s, u_int attr, |
87 | unsigned int *base, unsigned int num, u_int lines) |
88 | { |
89 | int i; |
90 | unsigned int try, align; |
91 | |
92 | align = (*base) ? (lines ? 1<<lines : 0) : 1; |
93 | if (align && (align < num)) { |
94 | if (*base) { |
95 | dev_dbg(&s->dev, "odd IO request: num %#x align %#x\n", |
96 | num, align); |
97 | align = 0; |
98 | } else |
99 | while (align && (align < num)) |
100 | align <<= 1; |
101 | } |
102 | if (*base & ~(align-1)) { |
103 | dev_dbg(&s->dev, "odd IO request: base %#x align %#x\n", |
104 | *base, align); |
105 | align = 0; |
106 | } |
107 | if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { |
108 | *base = s->io_offset | (*base & 0x0fff); |
109 | return 0; |
110 | } |
111 | /* Check for an already-allocated window that must conflict with |
112 | * what was asked for. It is a hack because it does not catch all |
113 | * potential conflicts, just the most obvious ones. |
114 | */ |
115 | for (i = 0; i < MAX_IO_WIN; i++) |
116 | if ((s->io[i].res) && *base && |
117 | ((s->io[i].res->start & (align-1)) == *base)) |
118 | return 1; |
119 | for (i = 0; i < MAX_IO_WIN; i++) { |
120 | if (!s->io[i].res) { |
121 | s->io[i].res = pcmcia_find_io_region(*base, num, align, s); |
122 | if (s->io[i].res) { |
123 | *base = s->io[i].res->start; |
124 | s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); |
125 | s->io[i].InUse = num; |
126 | break; |
127 | } else |
128 | return 1; |
129 | } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS)) |
130 | continue; |
131 | /* Try to extend top of window */ |
132 | try = s->io[i].res->end + 1; |
133 | if ((*base == 0) || (*base == try)) |
134 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, |
135 | s->io[i].res->end + num, s) == 0) { |
136 | *base = try; |
137 | s->io[i].InUse += num; |
138 | break; |
139 | } |
140 | /* Try to extend bottom of window */ |
141 | try = s->io[i].res->start - num; |
142 | if ((*base == 0) || (*base == try)) |
143 | if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, |
144 | s->io[i].res->end, s) == 0) { |
145 | *base = try; |
146 | s->io[i].InUse += num; |
147 | break; |
148 | } |
149 | } |
150 | return (i == MAX_IO_WIN); |
151 | } /* alloc_io_space */ |
152 | |
153 | |
154 | static void release_io_space(struct pcmcia_socket *s, unsigned int base, |
155 | unsigned int num) |
156 | { |
157 | int i; |
158 | |
159 | for (i = 0; i < MAX_IO_WIN; i++) { |
160 | if (!s->io[i].res) |
161 | continue; |
162 | if ((s->io[i].res->start <= base) && |
163 | (s->io[i].res->end >= base+num-1)) { |
164 | s->io[i].InUse -= num; |
165 | /* Free the window if no one else is using it */ |
166 | if (s->io[i].InUse == 0) { |
167 | release_resource(s->io[i].res); |
168 | kfree(s->io[i].res); |
169 | s->io[i].res = NULL; |
170 | } |
171 | } |
172 | } |
173 | } /* release_io_space */ |
174 | |
175 | |
176 | /** pccard_access_configuration_register |
177 | * |
178 | * Access_configuration_register() reads and writes configuration |
179 | * registers in attribute memory. Memory window 0 is reserved for |
180 | * this and the tuple reading services. |
181 | */ |
182 | |
183 | int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, |
184 | conf_reg_t *reg) |
185 | { |
186 | struct pcmcia_socket *s; |
187 | config_t *c; |
188 | int addr; |
189 | u_char val; |
190 | |
191 | if (!p_dev || !p_dev->function_config) |
192 | return -EINVAL; |
193 | |
194 | s = p_dev->socket; |
195 | |
196 | mutex_lock(&s->ops_mutex); |
197 | c = p_dev->function_config; |
198 | |
199 | if (!(c->state & CONFIG_LOCKED)) { |
200 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); |
201 | mutex_unlock(&s->ops_mutex); |
202 | return -EACCES; |
203 | } |
204 | |
205 | addr = (c->ConfigBase + reg->Offset) >> 1; |
206 | mutex_unlock(&s->ops_mutex); |
207 | |
208 | switch (reg->Action) { |
209 | case CS_READ: |
210 | pcmcia_read_cis_mem(s, 1, addr, 1, &val); |
211 | reg->Value = val; |
212 | break; |
213 | case CS_WRITE: |
214 | val = reg->Value; |
215 | pcmcia_write_cis_mem(s, 1, addr, 1, &val); |
216 | break; |
217 | default: |
218 | dev_dbg(&s->dev, "Invalid conf register request\n"); |
219 | return -EINVAL; |
220 | break; |
221 | } |
222 | return 0; |
223 | } /* pcmcia_access_configuration_register */ |
224 | EXPORT_SYMBOL(pcmcia_access_configuration_register); |
225 | |
226 | |
227 | int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, |
228 | memreq_t *req) |
229 | { |
230 | struct pcmcia_socket *s = p_dev->socket; |
231 | int ret; |
232 | |
233 | wh--; |
234 | if (wh >= MAX_WIN) |
235 | return -EINVAL; |
236 | if (req->Page != 0) { |
237 | dev_dbg(&s->dev, "failure: requested page is zero\n"); |
238 | return -EINVAL; |
239 | } |
240 | mutex_lock(&s->ops_mutex); |
241 | s->win[wh].card_start = req->CardOffset; |
242 | ret = s->ops->set_mem_map(s, &s->win[wh]); |
243 | if (ret) |
244 | dev_warn(&s->dev, "failed to set_mem_map\n"); |
245 | mutex_unlock(&s->ops_mutex); |
246 | return ret; |
247 | } /* pcmcia_map_mem_page */ |
248 | EXPORT_SYMBOL(pcmcia_map_mem_page); |
249 | |
250 | |
251 | /** pcmcia_modify_configuration |
252 | * |
253 | * Modify a locked socket configuration |
254 | */ |
255 | int pcmcia_modify_configuration(struct pcmcia_device *p_dev, |
256 | modconf_t *mod) |
257 | { |
258 | struct pcmcia_socket *s; |
259 | config_t *c; |
260 | int ret; |
261 | |
262 | s = p_dev->socket; |
263 | |
264 | mutex_lock(&s->ops_mutex); |
265 | c = p_dev->function_config; |
266 | |
267 | if (!(s->state & SOCKET_PRESENT)) { |
268 | dev_dbg(&s->dev, "No card present\n"); |
269 | ret = -ENODEV; |
270 | goto unlock; |
271 | } |
272 | if (!(c->state & CONFIG_LOCKED)) { |
273 | dev_dbg(&s->dev, "Configuration isnt't locked\n"); |
274 | ret = -EACCES; |
275 | goto unlock; |
276 | } |
277 | |
278 | if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { |
279 | if (mod->Attributes & CONF_ENABLE_IRQ) { |
280 | c->Attributes |= CONF_ENABLE_IRQ; |
281 | s->socket.io_irq = s->irq.AssignedIRQ; |
282 | } else { |
283 | c->Attributes &= ~CONF_ENABLE_IRQ; |
284 | s->socket.io_irq = 0; |
285 | } |
286 | s->ops->set_socket(s, &s->socket); |
287 | } |
288 | |
289 | if (mod->Attributes & CONF_VCC_CHANGE_VALID) { |
290 | dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); |
291 | ret = -EINVAL; |
292 | goto unlock; |
293 | } |
294 | |
295 | /* We only allow changing Vpp1 and Vpp2 to the same value */ |
296 | if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) && |
297 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
298 | if (mod->Vpp1 != mod->Vpp2) { |
299 | dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n"); |
300 | ret = -EINVAL; |
301 | goto unlock; |
302 | } |
303 | s->socket.Vpp = mod->Vpp1; |
304 | if (s->ops->set_socket(s, &s->socket)) { |
305 | dev_printk(KERN_WARNING, &s->dev, |
306 | "Unable to set VPP\n"); |
307 | ret = -EIO; |
308 | goto unlock; |
309 | } |
310 | } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || |
311 | (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { |
312 | dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); |
313 | ret = -EINVAL; |
314 | goto unlock; |
315 | } |
316 | |
317 | if (mod->Attributes & CONF_IO_CHANGE_WIDTH) { |
318 | pccard_io_map io_off = { 0, 0, 0, 0, 1 }; |
319 | pccard_io_map io_on; |
320 | int i; |
321 | |
322 | io_on.speed = io_speed; |
323 | for (i = 0; i < MAX_IO_WIN; i++) { |
324 | if (!s->io[i].res) |
325 | continue; |
326 | io_off.map = i; |
327 | io_on.map = i; |
328 | |
329 | io_on.flags = MAP_ACTIVE | IO_DATA_PATH_WIDTH_8; |
330 | io_on.start = s->io[i].res->start; |
331 | io_on.stop = s->io[i].res->end; |
332 | |
333 | s->ops->set_io_map(s, &io_off); |
334 | mdelay(40); |
335 | s->ops->set_io_map(s, &io_on); |
336 | } |
337 | } |
338 | ret = 0; |
339 | unlock: |
340 | mutex_unlock(&s->ops_mutex); |
341 | |
342 | return ret; |
343 | } /* modify_configuration */ |
344 | EXPORT_SYMBOL(pcmcia_modify_configuration); |
345 | |
346 | |
347 | int pcmcia_release_configuration(struct pcmcia_device *p_dev) |
348 | { |
349 | pccard_io_map io = { 0, 0, 0, 0, 1 }; |
350 | struct pcmcia_socket *s = p_dev->socket; |
351 | config_t *c; |
352 | int i; |
353 | |
354 | mutex_lock(&s->ops_mutex); |
355 | c = p_dev->function_config; |
356 | if (p_dev->_locked) { |
357 | p_dev->_locked = 0; |
358 | if (--(s->lock_count) == 0) { |
359 | s->socket.flags = SS_OUTPUT_ENA; /* Is this correct? */ |
360 | s->socket.Vpp = 0; |
361 | s->socket.io_irq = 0; |
362 | s->ops->set_socket(s, &s->socket); |
363 | } |
364 | } |
365 | if (c->state & CONFIG_LOCKED) { |
366 | c->state &= ~CONFIG_LOCKED; |
367 | if (c->state & CONFIG_IO_REQ) |
368 | for (i = 0; i < MAX_IO_WIN; i++) { |
369 | if (!s->io[i].res) |
370 | continue; |
371 | s->io[i].Config--; |
372 | if (s->io[i].Config != 0) |
373 | continue; |
374 | io.map = i; |
375 | s->ops->set_io_map(s, &io); |
376 | } |
377 | } |
378 | mutex_unlock(&s->ops_mutex); |
379 | |
380 | return 0; |
381 | } /* pcmcia_release_configuration */ |
382 | |
383 | |
384 | /** pcmcia_release_io |
385 | * |
386 | * Release_io() releases the I/O ranges allocated by a client. This |
387 | * may be invoked some time after a card ejection has already dumped |
388 | * the actual socket configuration, so if the client is "stale", we |
389 | * don't bother checking the port ranges against the current socket |
390 | * values. |
391 | */ |
392 | static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) |
393 | { |
394 | struct pcmcia_socket *s = p_dev->socket; |
395 | int ret = -EINVAL; |
396 | config_t *c; |
397 | |
398 | mutex_lock(&s->ops_mutex); |
399 | c = p_dev->function_config; |
400 | |
401 | if (!p_dev->_io) |
402 | goto out; |
403 | |
404 | p_dev->_io = 0; |
405 | |
406 | if ((c->io.BasePort1 != req->BasePort1) || |
407 | (c->io.NumPorts1 != req->NumPorts1) || |
408 | (c->io.BasePort2 != req->BasePort2) || |
409 | (c->io.NumPorts2 != req->NumPorts2)) |
410 | goto out; |
411 | |
412 | c->state &= ~CONFIG_IO_REQ; |
413 | |
414 | release_io_space(s, req->BasePort1, req->NumPorts1); |
415 | if (req->NumPorts2) |
416 | release_io_space(s, req->BasePort2, req->NumPorts2); |
417 | |
418 | out: |
419 | mutex_unlock(&s->ops_mutex); |
420 | |
421 | return ret; |
422 | } /* pcmcia_release_io */ |
423 | |
424 | |
425 | static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
426 | { |
427 | struct pcmcia_socket *s = p_dev->socket; |
428 | config_t *c; |
429 | int ret = -EINVAL; |
430 | |
431 | mutex_lock(&s->ops_mutex); |
432 | |
433 | c = p_dev->function_config; |
434 | |
435 | if (!p_dev->_irq) |
436 | goto out; |
437 | |
438 | p_dev->_irq = 0; |
439 | |
440 | if (c->state & CONFIG_LOCKED) |
441 | goto out; |
442 | |
443 | if (c->irq.Attributes != req->Attributes) { |
444 | dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n"); |
445 | goto out; |
446 | } |
447 | if (s->irq.AssignedIRQ != req->AssignedIRQ) { |
448 | dev_dbg(&s->dev, "IRQ must match assigned one\n"); |
449 | goto out; |
450 | } |
451 | if (--s->irq.Config == 0) { |
452 | c->state &= ~CONFIG_IRQ_REQ; |
453 | s->irq.AssignedIRQ = 0; |
454 | } |
455 | |
456 | if (req->Handler) |
457 | free_irq(req->AssignedIRQ, p_dev->priv); |
458 | |
459 | #ifdef CONFIG_PCMCIA_PROBE |
460 | pcmcia_used_irq[req->AssignedIRQ]--; |
461 | #endif |
462 | ret = 0; |
463 | |
464 | out: |
465 | mutex_unlock(&s->ops_mutex); |
466 | |
467 | return ret; |
468 | } /* pcmcia_release_irq */ |
469 | |
470 | |
471 | int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) |
472 | { |
473 | struct pcmcia_socket *s = p_dev->socket; |
474 | pccard_mem_map *win; |
475 | |
476 | wh--; |
477 | if (wh >= MAX_WIN) |
478 | return -EINVAL; |
479 | |
480 | mutex_lock(&s->ops_mutex); |
481 | win = &s->win[wh]; |
482 | |
483 | if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) { |
484 | dev_dbg(&s->dev, "not releasing unknown window\n"); |
485 | mutex_unlock(&s->ops_mutex); |
486 | return -EINVAL; |
487 | } |
488 | |
489 | /* Shut down memory window */ |
490 | win->flags &= ~MAP_ACTIVE; |
491 | s->ops->set_mem_map(s, win); |
492 | s->state &= ~SOCKET_WIN_REQ(wh); |
493 | |
494 | /* Release system memory */ |
495 | if (win->res) { |
496 | release_resource(win->res); |
497 | kfree(win->res); |
498 | win->res = NULL; |
499 | } |
500 | p_dev->_win &= ~CLIENT_WIN_REQ(wh); |
501 | mutex_unlock(&s->ops_mutex); |
502 | |
503 | return 0; |
504 | } /* pcmcia_release_window */ |
505 | EXPORT_SYMBOL(pcmcia_release_window); |
506 | |
507 | |
508 | int pcmcia_request_configuration(struct pcmcia_device *p_dev, |
509 | config_req_t *req) |
510 | { |
511 | int i; |
512 | u_int base; |
513 | struct pcmcia_socket *s = p_dev->socket; |
514 | config_t *c; |
515 | pccard_io_map iomap; |
516 | |
517 | if (!(s->state & SOCKET_PRESENT)) |
518 | return -ENODEV; |
519 | |
520 | if (req->IntType & INT_CARDBUS) { |
521 | dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n"); |
522 | return -EINVAL; |
523 | } |
524 | |
525 | mutex_lock(&s->ops_mutex); |
526 | c = p_dev->function_config; |
527 | if (c->state & CONFIG_LOCKED) { |
528 | mutex_unlock(&s->ops_mutex); |
529 | dev_dbg(&s->dev, "Configuration is locked\n"); |
530 | return -EACCES; |
531 | } |
532 | |
533 | /* Do power control. We don't allow changes in Vcc. */ |
534 | s->socket.Vpp = req->Vpp; |
535 | if (s->ops->set_socket(s, &s->socket)) { |
536 | mutex_unlock(&s->ops_mutex); |
537 | dev_printk(KERN_WARNING, &s->dev, |
538 | "Unable to set socket state\n"); |
539 | return -EINVAL; |
540 | } |
541 | |
542 | /* Pick memory or I/O card, DMA mode, interrupt */ |
543 | c->IntType = req->IntType; |
544 | c->Attributes = req->Attributes; |
545 | if (req->IntType & INT_MEMORY_AND_IO) |
546 | s->socket.flags |= SS_IOCARD; |
547 | if (req->IntType & INT_ZOOMED_VIDEO) |
548 | s->socket.flags |= SS_ZVCARD | SS_IOCARD; |
549 | if (req->Attributes & CONF_ENABLE_DMA) |
550 | s->socket.flags |= SS_DMA_MODE; |
551 | if (req->Attributes & CONF_ENABLE_SPKR) |
552 | s->socket.flags |= SS_SPKR_ENA; |
553 | if (req->Attributes & CONF_ENABLE_IRQ) |
554 | s->socket.io_irq = s->irq.AssignedIRQ; |
555 | else |
556 | s->socket.io_irq = 0; |
557 | s->ops->set_socket(s, &s->socket); |
558 | s->lock_count++; |
559 | mutex_unlock(&s->ops_mutex); |
560 | |
561 | /* Set up CIS configuration registers */ |
562 | base = c->ConfigBase = req->ConfigBase; |
563 | c->CardValues = req->Present; |
564 | if (req->Present & PRESENT_COPY) { |
565 | c->Copy = req->Copy; |
566 | pcmcia_write_cis_mem(s, 1, (base + CISREG_SCR)>>1, 1, &c->Copy); |
567 | } |
568 | if (req->Present & PRESENT_OPTION) { |
569 | if (s->functions == 1) { |
570 | c->Option = req->ConfigIndex & COR_CONFIG_MASK; |
571 | } else { |
572 | c->Option = req->ConfigIndex & COR_MFC_CONFIG_MASK; |
573 | c->Option |= COR_FUNC_ENA|COR_IREQ_ENA; |
574 | if (req->Present & PRESENT_IOBASE_0) |
575 | c->Option |= COR_ADDR_DECODE; |
576 | } |
577 | if (c->state & CONFIG_IRQ_REQ) |
578 | if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) |
579 | c->Option |= COR_LEVEL_REQ; |
580 | pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); |
581 | mdelay(40); |
582 | } |
583 | if (req->Present & PRESENT_STATUS) { |
584 | c->Status = req->Status; |
585 | pcmcia_write_cis_mem(s, 1, (base + CISREG_CCSR)>>1, 1, &c->Status); |
586 | } |
587 | if (req->Present & PRESENT_PIN_REPLACE) { |
588 | c->Pin = req->Pin; |
589 | pcmcia_write_cis_mem(s, 1, (base + CISREG_PRR)>>1, 1, &c->Pin); |
590 | } |
591 | if (req->Present & PRESENT_EXT_STATUS) { |
592 | c->ExtStatus = req->ExtStatus; |
593 | pcmcia_write_cis_mem(s, 1, (base + CISREG_ESR)>>1, 1, &c->ExtStatus); |
594 | } |
595 | if (req->Present & PRESENT_IOBASE_0) { |
596 | u_char b = c->io.BasePort1 & 0xff; |
597 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_0)>>1, 1, &b); |
598 | b = (c->io.BasePort1 >> 8) & 0xff; |
599 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOBASE_1)>>1, 1, &b); |
600 | } |
601 | if (req->Present & PRESENT_IOSIZE) { |
602 | u_char b = c->io.NumPorts1 + c->io.NumPorts2 - 1; |
603 | pcmcia_write_cis_mem(s, 1, (base + CISREG_IOSIZE)>>1, 1, &b); |
604 | } |
605 | |
606 | /* Configure I/O windows */ |
607 | if (c->state & CONFIG_IO_REQ) { |
608 | mutex_lock(&s->ops_mutex); |
609 | iomap.speed = io_speed; |
610 | for (i = 0; i < MAX_IO_WIN; i++) |
611 | if (s->io[i].res) { |
612 | iomap.map = i; |
613 | iomap.flags = MAP_ACTIVE; |
614 | switch (s->io[i].res->flags & IO_DATA_PATH_WIDTH) { |
615 | case IO_DATA_PATH_WIDTH_16: |
616 | iomap.flags |= MAP_16BIT; break; |
617 | case IO_DATA_PATH_WIDTH_AUTO: |
618 | iomap.flags |= MAP_AUTOSZ; break; |
619 | default: |
620 | break; |
621 | } |
622 | iomap.start = s->io[i].res->start; |
623 | iomap.stop = s->io[i].res->end; |
624 | s->ops->set_io_map(s, &iomap); |
625 | s->io[i].Config++; |
626 | } |
627 | mutex_unlock(&s->ops_mutex); |
628 | } |
629 | |
630 | c->state |= CONFIG_LOCKED; |
631 | p_dev->_locked = 1; |
632 | return 0; |
633 | } /* pcmcia_request_configuration */ |
634 | EXPORT_SYMBOL(pcmcia_request_configuration); |
635 | |
636 | |
637 | /** pcmcia_request_io |
638 | * |
639 | * Request_io() reserves ranges of port addresses for a socket. |
640 | * I have not implemented range sharing or alias addressing. |
641 | */ |
642 | int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req) |
643 | { |
644 | struct pcmcia_socket *s = p_dev->socket; |
645 | config_t *c; |
646 | int ret = -EINVAL; |
647 | |
648 | mutex_lock(&s->ops_mutex); |
649 | |
650 | if (!(s->state & SOCKET_PRESENT)) { |
651 | dev_dbg(&s->dev, "No card present\n"); |
652 | goto out; |
653 | } |
654 | |
655 | if (!req) |
656 | goto out; |
657 | |
658 | c = p_dev->function_config; |
659 | if (c->state & CONFIG_LOCKED) { |
660 | dev_dbg(&s->dev, "Configuration is locked\n"); |
661 | goto out; |
662 | } |
663 | if (c->state & CONFIG_IO_REQ) { |
664 | dev_dbg(&s->dev, "IO already configured\n"); |
665 | goto out; |
666 | } |
667 | if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) { |
668 | dev_dbg(&s->dev, "bad attribute setting for IO region 1\n"); |
669 | goto out; |
670 | } |
671 | if ((req->NumPorts2 > 0) && |
672 | (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) { |
673 | dev_dbg(&s->dev, "bad attribute setting for IO region 2\n"); |
674 | goto out; |
675 | } |
676 | |
677 | dev_dbg(&s->dev, "trying to allocate resource 1\n"); |
678 | ret = alloc_io_space(s, req->Attributes1, &req->BasePort1, |
679 | req->NumPorts1, req->IOAddrLines); |
680 | if (ret) { |
681 | dev_dbg(&s->dev, "allocation of resource 1 failed\n"); |
682 | goto out; |
683 | } |
684 | |
685 | if (req->NumPorts2) { |
686 | dev_dbg(&s->dev, "trying to allocate resource 2\n"); |
687 | ret = alloc_io_space(s, req->Attributes2, &req->BasePort2, |
688 | req->NumPorts2, req->IOAddrLines); |
689 | if (ret) { |
690 | dev_dbg(&s->dev, "allocation of resource 2 failed\n"); |
691 | release_io_space(s, req->BasePort1, req->NumPorts1); |
692 | goto out; |
693 | } |
694 | } |
695 | |
696 | c->io = *req; |
697 | c->state |= CONFIG_IO_REQ; |
698 | p_dev->_io = 1; |
699 | dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret); |
700 | |
701 | out: |
702 | mutex_unlock(&s->ops_mutex); |
703 | |
704 | return ret; |
705 | } /* pcmcia_request_io */ |
706 | EXPORT_SYMBOL(pcmcia_request_io); |
707 | |
708 | |
709 | /** pcmcia_request_irq |
710 | * |
711 | * Request_irq() reserves an irq for this client. |
712 | * |
713 | * Also, since Linux only reserves irq's when they are actually |
714 | * hooked, we don't guarantee that an irq will still be available |
715 | * when the configuration is locked. Now that I think about it, |
716 | * there might be a way to fix this using a dummy handler. |
717 | */ |
718 | |
719 | #ifdef CONFIG_PCMCIA_PROBE |
720 | static irqreturn_t test_action(int cpl, void *dev_id) |
721 | { |
722 | return IRQ_NONE; |
723 | } |
724 | #endif |
725 | |
726 | int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) |
727 | { |
728 | struct pcmcia_socket *s = p_dev->socket; |
729 | config_t *c; |
730 | int ret = -EINVAL, irq = 0; |
731 | int type; |
732 | |
733 | mutex_lock(&s->ops_mutex); |
734 | |
735 | if (!(s->state & SOCKET_PRESENT)) { |
736 | dev_dbg(&s->dev, "No card present\n"); |
737 | goto out; |
738 | } |
739 | c = p_dev->function_config; |
740 | if (c->state & CONFIG_LOCKED) { |
741 | dev_dbg(&s->dev, "Configuration is locked\n"); |
742 | goto out; |
743 | } |
744 | if (c->state & CONFIG_IRQ_REQ) { |
745 | dev_dbg(&s->dev, "IRQ already configured\n"); |
746 | goto out; |
747 | } |
748 | |
749 | /* Decide what type of interrupt we are registering */ |
750 | type = 0; |
751 | if (s->functions > 1) /* All of this ought to be handled higher up */ |
752 | type = IRQF_SHARED; |
753 | else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) |
754 | type = IRQF_SHARED; |
755 | else |
756 | printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n"); |
757 | |
758 | /* If the interrupt is already assigned, it must be the same */ |
759 | if (s->irq.AssignedIRQ != 0) |
760 | irq = s->irq.AssignedIRQ; |
761 | |
762 | #ifdef CONFIG_PCMCIA_PROBE |
763 | if (!irq) { |
764 | int try; |
765 | u32 mask = s->irq_mask; |
766 | void *data = p_dev; /* something unique to this device */ |
767 | |
768 | for (try = 0; try < 64; try++) { |
769 | irq = try % 32; |
770 | |
771 | /* marked as available by driver, and not blocked by userspace? */ |
772 | if (!((mask >> irq) & 1)) |
773 | continue; |
774 | |
775 | /* avoid an IRQ which is already used by a PCMCIA card */ |
776 | if ((try < 32) && pcmcia_used_irq[irq]) |
777 | continue; |
778 | |
779 | /* register the correct driver, if possible, of check whether |
780 | * registering a dummy handle works, i.e. if the IRQ isn't |
781 | * marked as used by the kernel resource management core */ |
782 | ret = request_irq(irq, |
783 | (req->Handler) ? req->Handler : test_action, |
784 | type, |
785 | p_dev->devname, |
786 | (req->Handler) ? p_dev->priv : data); |
787 | if (!ret) { |
788 | if (!req->Handler) |
789 | free_irq(irq, data); |
790 | break; |
791 | } |
792 | } |
793 | } |
794 | #endif |
795 | /* only assign PCI irq if no IRQ already assigned */ |
796 | if (ret && !s->irq.AssignedIRQ) { |
797 | if (!s->pci_irq) { |
798 | dev_printk(KERN_INFO, &s->dev, "no IRQ found\n"); |
799 | goto out; |
800 | } |
801 | type = IRQF_SHARED; |
802 | irq = s->pci_irq; |
803 | } |
804 | |
805 | if (ret && req->Handler) { |
806 | ret = request_irq(irq, req->Handler, type, |
807 | p_dev->devname, p_dev->priv); |
808 | if (ret) { |
809 | dev_printk(KERN_INFO, &s->dev, |
810 | "request_irq() failed\n"); |
811 | goto out; |
812 | } |
813 | } |
814 | |
815 | /* Make sure the fact the request type was overridden is passed back */ |
816 | if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { |
817 | req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; |
818 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " |
819 | "request for exclusive IRQ could not be fulfilled.\n"); |
820 | dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " |
821 | "needs updating to supported shared IRQ lines.\n"); |
822 | } |
823 | c->irq.Attributes = req->Attributes; |
824 | s->irq.AssignedIRQ = req->AssignedIRQ = irq; |
825 | s->irq.Config++; |
826 | |
827 | c->state |= CONFIG_IRQ_REQ; |
828 | p_dev->_irq = 1; |
829 | |
830 | #ifdef CONFIG_PCMCIA_PROBE |
831 | pcmcia_used_irq[irq]++; |
832 | #endif |
833 | |
834 | ret = 0; |
835 | out: |
836 | mutex_unlock(&s->ops_mutex); |
837 | return ret; |
838 | } /* pcmcia_request_irq */ |
839 | EXPORT_SYMBOL(pcmcia_request_irq); |
840 | |
841 | |
842 | /** pcmcia_request_window |
843 | * |
844 | * Request_window() establishes a mapping between card memory space |
845 | * and system memory space. |
846 | */ |
847 | int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_handle_t *wh) |
848 | { |
849 | struct pcmcia_socket *s = p_dev->socket; |
850 | pccard_mem_map *win; |
851 | u_long align; |
852 | int w; |
853 | |
854 | if (!(s->state & SOCKET_PRESENT)) { |
855 | dev_dbg(&s->dev, "No card present\n"); |
856 | return -ENODEV; |
857 | } |
858 | if (req->Attributes & (WIN_PAGED | WIN_SHARED)) { |
859 | dev_dbg(&s->dev, "bad attribute setting for iomem region\n"); |
860 | return -EINVAL; |
861 | } |
862 | |
863 | /* Window size defaults to smallest available */ |
864 | if (req->Size == 0) |
865 | req->Size = s->map_size; |
866 | align = (((s->features & SS_CAP_MEM_ALIGN) || |
867 | (req->Attributes & WIN_STRICT_ALIGN)) ? |
868 | req->Size : s->map_size); |
869 | if (req->Size & (s->map_size-1)) { |
870 | dev_dbg(&s->dev, "invalid map size\n"); |
871 | return -EINVAL; |
872 | } |
873 | if ((req->Base && (s->features & SS_CAP_STATIC_MAP)) || |
874 | (req->Base & (align-1))) { |
875 | dev_dbg(&s->dev, "invalid base address\n"); |
876 | return -EINVAL; |
877 | } |
878 | if (req->Base) |
879 | align = 0; |
880 | |
881 | /* Allocate system memory window */ |
882 | for (w = 0; w < MAX_WIN; w++) |
883 | if (!(s->state & SOCKET_WIN_REQ(w))) |
884 | break; |
885 | if (w == MAX_WIN) { |
886 | dev_dbg(&s->dev, "all windows are used already\n"); |
887 | return -EINVAL; |
888 | } |
889 | |
890 | mutex_lock(&s->ops_mutex); |
891 | win = &s->win[w]; |
892 | |
893 | if (!(s->features & SS_CAP_STATIC_MAP)) { |
894 | win->res = pcmcia_find_mem_region(req->Base, req->Size, align, |
895 | (req->Attributes & WIN_MAP_BELOW_1MB), s); |
896 | if (!win->res) { |
897 | dev_dbg(&s->dev, "allocating mem region failed\n"); |
898 | mutex_unlock(&s->ops_mutex); |
899 | return -EINVAL; |
900 | } |
901 | } |
902 | p_dev->_win |= CLIENT_WIN_REQ(w); |
903 | |
904 | /* Configure the socket controller */ |
905 | win->map = w+1; |
906 | win->flags = 0; |
907 | win->speed = req->AccessSpeed; |
908 | if (req->Attributes & WIN_MEMORY_TYPE) |
909 | win->flags |= MAP_ATTRIB; |
910 | if (req->Attributes & WIN_ENABLE) |
911 | win->flags |= MAP_ACTIVE; |
912 | if (req->Attributes & WIN_DATA_WIDTH_16) |
913 | win->flags |= MAP_16BIT; |
914 | if (req->Attributes & WIN_USE_WAIT) |
915 | win->flags |= MAP_USE_WAIT; |
916 | win->card_start = 0; |
917 | |
918 | if (s->ops->set_mem_map(s, win) != 0) { |
919 | dev_dbg(&s->dev, "failed to set memory mapping\n"); |
920 | mutex_unlock(&s->ops_mutex); |
921 | return -EIO; |
922 | } |
923 | s->state |= SOCKET_WIN_REQ(w); |
924 | |
925 | /* Return window handle */ |
926 | if (s->features & SS_CAP_STATIC_MAP) |
927 | req->Base = win->static_start; |
928 | else |
929 | req->Base = win->res->start; |
930 | |
931 | mutex_unlock(&s->ops_mutex); |
932 | *wh = w + 1; |
933 | |
934 | return 0; |
935 | } /* pcmcia_request_window */ |
936 | EXPORT_SYMBOL(pcmcia_request_window); |
937 | |
938 | void pcmcia_disable_device(struct pcmcia_device *p_dev) |
939 | { |
940 | pcmcia_release_configuration(p_dev); |
941 | pcmcia_release_io(p_dev, &p_dev->io); |
942 | pcmcia_release_irq(p_dev, &p_dev->irq); |
943 | if (p_dev->win) |
944 | pcmcia_release_window(p_dev, p_dev->win); |
945 | } |
946 | EXPORT_SYMBOL(pcmcia_disable_device); |
947 | |
948 | |
949 | struct pcmcia_cfg_mem { |
950 | struct pcmcia_device *p_dev; |
951 | void *priv_data; |
952 | int (*conf_check) (struct pcmcia_device *p_dev, |
953 | cistpl_cftable_entry_t *cfg, |
954 | cistpl_cftable_entry_t *dflt, |
955 | unsigned int vcc, |
956 | void *priv_data); |
957 | cisparse_t parse; |
958 | cistpl_cftable_entry_t dflt; |
959 | }; |
960 | |
961 | /** |
962 | * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config() |
963 | * |
964 | * pcmcia_do_loop_config() is the internal callback for the call from |
965 | * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred |
966 | * by a struct pcmcia_cfg_mem. |
967 | */ |
968 | static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv) |
969 | { |
970 | cistpl_cftable_entry_t *cfg = &parse->cftable_entry; |
971 | struct pcmcia_cfg_mem *cfg_mem = priv; |
972 | |
973 | /* default values */ |
974 | cfg_mem->p_dev->conf.ConfigIndex = cfg->index; |
975 | if (cfg->flags & CISTPL_CFTABLE_DEFAULT) |
976 | cfg_mem->dflt = *cfg; |
977 | |
978 | return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt, |
979 | cfg_mem->p_dev->socket->socket.Vcc, |
980 | cfg_mem->priv_data); |
981 | } |
982 | |
983 | /** |
984 | * pcmcia_loop_config() - loop over configuration options |
985 | * @p_dev: the struct pcmcia_device which we need to loop for. |
986 | * @conf_check: function to call for each configuration option. |
987 | * It gets passed the struct pcmcia_device, the CIS data |
988 | * describing the configuration option, and private data |
989 | * being passed to pcmcia_loop_config() |
990 | * @priv_data: private data to be passed to the conf_check function. |
991 | * |
992 | * pcmcia_loop_config() loops over all configuration options, and calls |
993 | * the driver-specific conf_check() for each one, checking whether |
994 | * it is a valid one. Returns 0 on success or errorcode otherwise. |
995 | */ |
996 | int pcmcia_loop_config(struct pcmcia_device *p_dev, |
997 | int (*conf_check) (struct pcmcia_device *p_dev, |
998 | cistpl_cftable_entry_t *cfg, |
999 | cistpl_cftable_entry_t *dflt, |
1000 | unsigned int vcc, |
1001 | void *priv_data), |
1002 | void *priv_data) |
1003 | { |
1004 | struct pcmcia_cfg_mem *cfg_mem; |
1005 | int ret; |
1006 | |
1007 | cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL); |
1008 | if (cfg_mem == NULL) |
1009 | return -ENOMEM; |
1010 | |
1011 | cfg_mem->p_dev = p_dev; |
1012 | cfg_mem->conf_check = conf_check; |
1013 | cfg_mem->priv_data = priv_data; |
1014 | |
1015 | ret = pccard_loop_tuple(p_dev->socket, p_dev->func, |
1016 | CISTPL_CFTABLE_ENTRY, &cfg_mem->parse, |
1017 | cfg_mem, pcmcia_do_loop_config); |
1018 | |
1019 | kfree(cfg_mem); |
1020 | return ret; |
1021 | } |
1022 | EXPORT_SYMBOL(pcmcia_loop_config); |
1023 | |
1024 | |
1025 | struct pcmcia_loop_mem { |
1026 | struct pcmcia_device *p_dev; |
1027 | void *priv_data; |
1028 | int (*loop_tuple) (struct pcmcia_device *p_dev, |
1029 | tuple_t *tuple, |
1030 | void *priv_data); |
1031 | }; |
1032 | |
1033 | /** |
1034 | * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config() |
1035 | * |
1036 | * pcmcia_do_loop_tuple() is the internal callback for the call from |
1037 | * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred |
1038 | * by a struct pcmcia_cfg_mem. |
1039 | */ |
1040 | static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv) |
1041 | { |
1042 | struct pcmcia_loop_mem *loop = priv; |
1043 | |
1044 | return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data); |
1045 | }; |
1046 | |
1047 | /** |
1048 | * pcmcia_loop_tuple() - loop over tuples in the CIS |
1049 | * @p_dev: the struct pcmcia_device which we need to loop for. |
1050 | * @code: which CIS code shall we look for? |
1051 | * @priv_data: private data to be passed to the loop_tuple function. |
1052 | * @loop_tuple: function to call for each CIS entry of type @function. IT |
1053 | * gets passed the raw tuple and @priv_data. |
1054 | * |
1055 | * pcmcia_loop_tuple() loops over all CIS entries of type @function, and |
1056 | * calls the @loop_tuple function for each entry. If the call to @loop_tuple |
1057 | * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. |
1058 | */ |
1059 | int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code, |
1060 | int (*loop_tuple) (struct pcmcia_device *p_dev, |
1061 | tuple_t *tuple, |
1062 | void *priv_data), |
1063 | void *priv_data) |
1064 | { |
1065 | struct pcmcia_loop_mem loop = { |
1066 | .p_dev = p_dev, |
1067 | .loop_tuple = loop_tuple, |
1068 | .priv_data = priv_data}; |
1069 | |
1070 | return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL, |
1071 | &loop, pcmcia_do_loop_tuple); |
1072 | } |
1073 | EXPORT_SYMBOL(pcmcia_loop_tuple); |
1074 | |
1075 | |
1076 | struct pcmcia_loop_get { |
1077 | size_t len; |
1078 | cisdata_t **buf; |
1079 | }; |
1080 | |
1081 | /** |
1082 | * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple() |
1083 | * |
1084 | * pcmcia_do_get_tuple() is the internal callback for the call from |
1085 | * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in |
1086 | * the first tuple, return 0 unconditionally. Create a memory buffer large |
1087 | * enough to hold the content of the tuple, and fill it with the tuple data. |
1088 | * The caller is responsible to free the buffer. |
1089 | */ |
1090 | static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, |
1091 | void *priv) |
1092 | { |
1093 | struct pcmcia_loop_get *get = priv; |
1094 | |
1095 | *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL); |
1096 | if (*get->buf) { |
1097 | get->len = tuple->TupleDataLen; |
1098 | memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen); |
1099 | } else |
1100 | dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n"); |
1101 | return 0; |
1102 | } |
1103 | |
1104 | /** |
1105 | * pcmcia_get_tuple() - get first tuple from CIS |
1106 | * @p_dev: the struct pcmcia_device which we need to loop for. |
1107 | * @code: which CIS code shall we look for? |
1108 | * @buf: pointer to store the buffer to. |
1109 | * |
1110 | * pcmcia_get_tuple() gets the content of the first CIS entry of type @code. |
1111 | * It returns the buffer length (or zero). The caller is responsible to free |
1112 | * the buffer passed in @buf. |
1113 | */ |
1114 | size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code, |
1115 | unsigned char **buf) |
1116 | { |
1117 | struct pcmcia_loop_get get = { |
1118 | .len = 0, |
1119 | .buf = buf, |
1120 | }; |
1121 | |
1122 | *get.buf = NULL; |
1123 | pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get); |
1124 | |
1125 | return get.len; |
1126 | } |
1127 | EXPORT_SYMBOL(pcmcia_get_tuple); |
1128 | |
1129 | |
1130 | /** |
1131 | * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis() |
1132 | * |
1133 | * pcmcia_do_get_mac() is the internal callback for the call from |
1134 | * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the |
1135 | * tuple contains a proper LAN_NODE_ID of length 6, and copy the data |
1136 | * to struct net_device->dev_addr[i]. |
1137 | */ |
1138 | static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, |
1139 | void *priv) |
1140 | { |
1141 | struct net_device *dev = priv; |
1142 | int i; |
1143 | |
1144 | if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) |
1145 | return -EINVAL; |
1146 | if (tuple->TupleDataLen < ETH_ALEN + 2) { |
1147 | dev_warn(&p_dev->dev, "Invalid CIS tuple length for " |
1148 | "LAN_NODE_ID\n"); |
1149 | return -EINVAL; |
1150 | } |
1151 | |
1152 | if (tuple->TupleData[1] != ETH_ALEN) { |
1153 | dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n"); |
1154 | return -EINVAL; |
1155 | } |
1156 | for (i = 0; i < 6; i++) |
1157 | dev->dev_addr[i] = tuple->TupleData[i+2]; |
1158 | return 0; |
1159 | } |
1160 | |
1161 | /** |
1162 | * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE |
1163 | * @p_dev: the struct pcmcia_device for which we want the address. |
1164 | * @dev: a properly prepared struct net_device to store the info to. |
1165 | * |
1166 | * pcmcia_get_mac_from_cis() reads out the hardware MAC address from |
1167 | * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which |
1168 | * must be set up properly by the driver (see examples!). |
1169 | */ |
1170 | int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev) |
1171 | { |
1172 | return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev); |
1173 | } |
1174 | EXPORT_SYMBOL(pcmcia_get_mac_from_cis); |
1175 | |
1176 |
Branches:
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javiroman/ks7010
jz-2.6.34
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9