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1 | /* |
2 | * resource.c - Contains functions for registering and analyzing resource information |
3 | * |
4 | * based on isapnp.c resource management (c) Jaroslav Kysela <perex@perex.cz> |
5 | * Copyright 2003 Adam Belay <ambx1@neo.rr.com> |
6 | * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. |
7 | * Bjorn Helgaas <bjorn.helgaas@hp.com> |
8 | */ |
9 | |
10 | #include <linux/module.h> |
11 | #include <linux/slab.h> |
12 | #include <linux/errno.h> |
13 | #include <linux/interrupt.h> |
14 | #include <linux/kernel.h> |
15 | #include <asm/io.h> |
16 | #include <asm/dma.h> |
17 | #include <asm/irq.h> |
18 | #include <linux/pci.h> |
19 | #include <linux/ioport.h> |
20 | #include <linux/init.h> |
21 | |
22 | #include <linux/pnp.h> |
23 | #include "base.h" |
24 | |
25 | static int pnp_reserve_irq[16] = {[0 ... 15] = -1 }; /* reserve (don't use) some IRQ */ |
26 | static int pnp_reserve_dma[8] = {[0 ... 7] = -1 }; /* reserve (don't use) some DMA */ |
27 | static int pnp_reserve_io[16] = {[0 ... 15] = -1 }; /* reserve (don't use) some I/O region */ |
28 | static int pnp_reserve_mem[16] = {[0 ... 15] = -1 }; /* reserve (don't use) some memory region */ |
29 | |
30 | /* |
31 | * option registration |
32 | */ |
33 | |
34 | struct pnp_option *pnp_build_option(struct pnp_dev *dev, unsigned long type, |
35 | unsigned int option_flags) |
36 | { |
37 | struct pnp_option *option; |
38 | |
39 | option = kzalloc(sizeof(struct pnp_option), GFP_KERNEL); |
40 | if (!option) |
41 | return NULL; |
42 | |
43 | option->flags = option_flags; |
44 | option->type = type; |
45 | |
46 | list_add_tail(&option->list, &dev->options); |
47 | return option; |
48 | } |
49 | |
50 | int pnp_register_irq_resource(struct pnp_dev *dev, unsigned int option_flags, |
51 | pnp_irq_mask_t *map, unsigned char flags) |
52 | { |
53 | struct pnp_option *option; |
54 | struct pnp_irq *irq; |
55 | |
56 | option = pnp_build_option(dev, IORESOURCE_IRQ, option_flags); |
57 | if (!option) |
58 | return -ENOMEM; |
59 | |
60 | irq = &option->u.irq; |
61 | irq->map = *map; |
62 | irq->flags = flags; |
63 | |
64 | #ifdef CONFIG_PCI |
65 | { |
66 | int i; |
67 | |
68 | for (i = 0; i < 16; i++) |
69 | if (test_bit(i, irq->map.bits)) |
70 | pcibios_penalize_isa_irq(i, 0); |
71 | } |
72 | #endif |
73 | |
74 | dbg_pnp_show_option(dev, option); |
75 | return 0; |
76 | } |
77 | |
78 | int pnp_register_dma_resource(struct pnp_dev *dev, unsigned int option_flags, |
79 | unsigned char map, unsigned char flags) |
80 | { |
81 | struct pnp_option *option; |
82 | struct pnp_dma *dma; |
83 | |
84 | option = pnp_build_option(dev, IORESOURCE_DMA, option_flags); |
85 | if (!option) |
86 | return -ENOMEM; |
87 | |
88 | dma = &option->u.dma; |
89 | dma->map = map; |
90 | dma->flags = flags; |
91 | |
92 | dbg_pnp_show_option(dev, option); |
93 | return 0; |
94 | } |
95 | |
96 | int pnp_register_port_resource(struct pnp_dev *dev, unsigned int option_flags, |
97 | resource_size_t min, resource_size_t max, |
98 | resource_size_t align, resource_size_t size, |
99 | unsigned char flags) |
100 | { |
101 | struct pnp_option *option; |
102 | struct pnp_port *port; |
103 | |
104 | option = pnp_build_option(dev, IORESOURCE_IO, option_flags); |
105 | if (!option) |
106 | return -ENOMEM; |
107 | |
108 | port = &option->u.port; |
109 | port->min = min; |
110 | port->max = max; |
111 | port->align = align; |
112 | port->size = size; |
113 | port->flags = flags; |
114 | |
115 | dbg_pnp_show_option(dev, option); |
116 | return 0; |
117 | } |
118 | |
119 | int pnp_register_mem_resource(struct pnp_dev *dev, unsigned int option_flags, |
120 | resource_size_t min, resource_size_t max, |
121 | resource_size_t align, resource_size_t size, |
122 | unsigned char flags) |
123 | { |
124 | struct pnp_option *option; |
125 | struct pnp_mem *mem; |
126 | |
127 | option = pnp_build_option(dev, IORESOURCE_MEM, option_flags); |
128 | if (!option) |
129 | return -ENOMEM; |
130 | |
131 | mem = &option->u.mem; |
132 | mem->min = min; |
133 | mem->max = max; |
134 | mem->align = align; |
135 | mem->size = size; |
136 | mem->flags = flags; |
137 | |
138 | dbg_pnp_show_option(dev, option); |
139 | return 0; |
140 | } |
141 | |
142 | void pnp_free_options(struct pnp_dev *dev) |
143 | { |
144 | struct pnp_option *option, *tmp; |
145 | |
146 | list_for_each_entry_safe(option, tmp, &dev->options, list) { |
147 | list_del(&option->list); |
148 | kfree(option); |
149 | } |
150 | } |
151 | |
152 | /* |
153 | * resource validity checking |
154 | */ |
155 | |
156 | #define length(start, end) (*(end) - *(start) + 1) |
157 | |
158 | /* Two ranges conflict if one doesn't end before the other starts */ |
159 | #define ranged_conflict(starta, enda, startb, endb) \ |
160 | !((*(enda) < *(startb)) || (*(endb) < *(starta))) |
161 | |
162 | #define cannot_compare(flags) \ |
163 | ((flags) & IORESOURCE_DISABLED) |
164 | |
165 | int pnp_check_port(struct pnp_dev *dev, struct resource *res) |
166 | { |
167 | int i; |
168 | struct pnp_dev *tdev; |
169 | struct resource *tres; |
170 | resource_size_t *port, *end, *tport, *tend; |
171 | |
172 | port = &res->start; |
173 | end = &res->end; |
174 | |
175 | /* if the resource doesn't exist, don't complain about it */ |
176 | if (cannot_compare(res->flags)) |
177 | return 1; |
178 | |
179 | /* check if the resource is already in use, skip if the |
180 | * device is active because it itself may be in use */ |
181 | if (!dev->active) { |
182 | if (__check_region(&ioport_resource, *port, length(port, end))) |
183 | return 0; |
184 | } |
185 | |
186 | /* check if the resource is reserved */ |
187 | for (i = 0; i < 8; i++) { |
188 | int rport = pnp_reserve_io[i << 1]; |
189 | int rend = pnp_reserve_io[(i << 1) + 1] + rport - 1; |
190 | if (ranged_conflict(port, end, &rport, &rend)) |
191 | return 0; |
192 | } |
193 | |
194 | /* check for internal conflicts */ |
195 | for (i = 0; (tres = pnp_get_resource(dev, IORESOURCE_IO, i)); i++) { |
196 | if (tres != res && tres->flags & IORESOURCE_IO) { |
197 | tport = &tres->start; |
198 | tend = &tres->end; |
199 | if (ranged_conflict(port, end, tport, tend)) |
200 | return 0; |
201 | } |
202 | } |
203 | |
204 | /* check for conflicts with other pnp devices */ |
205 | pnp_for_each_dev(tdev) { |
206 | if (tdev == dev) |
207 | continue; |
208 | for (i = 0; |
209 | (tres = pnp_get_resource(tdev, IORESOURCE_IO, i)); |
210 | i++) { |
211 | if (tres->flags & IORESOURCE_IO) { |
212 | if (cannot_compare(tres->flags)) |
213 | continue; |
214 | if (tres->flags & IORESOURCE_WINDOW) |
215 | continue; |
216 | tport = &tres->start; |
217 | tend = &tres->end; |
218 | if (ranged_conflict(port, end, tport, tend)) |
219 | return 0; |
220 | } |
221 | } |
222 | } |
223 | |
224 | return 1; |
225 | } |
226 | |
227 | int pnp_check_mem(struct pnp_dev *dev, struct resource *res) |
228 | { |
229 | int i; |
230 | struct pnp_dev *tdev; |
231 | struct resource *tres; |
232 | resource_size_t *addr, *end, *taddr, *tend; |
233 | |
234 | addr = &res->start; |
235 | end = &res->end; |
236 | |
237 | /* if the resource doesn't exist, don't complain about it */ |
238 | if (cannot_compare(res->flags)) |
239 | return 1; |
240 | |
241 | /* check if the resource is already in use, skip if the |
242 | * device is active because it itself may be in use */ |
243 | if (!dev->active) { |
244 | if (check_mem_region(*addr, length(addr, end))) |
245 | return 0; |
246 | } |
247 | |
248 | /* check if the resource is reserved */ |
249 | for (i = 0; i < 8; i++) { |
250 | int raddr = pnp_reserve_mem[i << 1]; |
251 | int rend = pnp_reserve_mem[(i << 1) + 1] + raddr - 1; |
252 | if (ranged_conflict(addr, end, &raddr, &rend)) |
253 | return 0; |
254 | } |
255 | |
256 | /* check for internal conflicts */ |
257 | for (i = 0; (tres = pnp_get_resource(dev, IORESOURCE_MEM, i)); i++) { |
258 | if (tres != res && tres->flags & IORESOURCE_MEM) { |
259 | taddr = &tres->start; |
260 | tend = &tres->end; |
261 | if (ranged_conflict(addr, end, taddr, tend)) |
262 | return 0; |
263 | } |
264 | } |
265 | |
266 | /* check for conflicts with other pnp devices */ |
267 | pnp_for_each_dev(tdev) { |
268 | if (tdev == dev) |
269 | continue; |
270 | for (i = 0; |
271 | (tres = pnp_get_resource(tdev, IORESOURCE_MEM, i)); |
272 | i++) { |
273 | if (tres->flags & IORESOURCE_MEM) { |
274 | if (cannot_compare(tres->flags)) |
275 | continue; |
276 | if (tres->flags & IORESOURCE_WINDOW) |
277 | continue; |
278 | taddr = &tres->start; |
279 | tend = &tres->end; |
280 | if (ranged_conflict(addr, end, taddr, tend)) |
281 | return 0; |
282 | } |
283 | } |
284 | } |
285 | |
286 | return 1; |
287 | } |
288 | |
289 | static irqreturn_t pnp_test_handler(int irq, void *dev_id) |
290 | { |
291 | return IRQ_HANDLED; |
292 | } |
293 | |
294 | #ifdef CONFIG_PCI |
295 | static int pci_dev_uses_irq(struct pnp_dev *pnp, struct pci_dev *pci, |
296 | unsigned int irq) |
297 | { |
298 | u32 class; |
299 | u8 progif; |
300 | |
301 | if (pci->irq == irq) { |
302 | pnp_dbg(&pnp->dev, " device %s using irq %d\n", |
303 | pci_name(pci), irq); |
304 | return 1; |
305 | } |
306 | |
307 | /* |
308 | * See pci_setup_device() and ata_pci_sff_activate_host() for |
309 | * similar IDE legacy detection. |
310 | */ |
311 | pci_read_config_dword(pci, PCI_CLASS_REVISION, &class); |
312 | class >>= 8; /* discard revision ID */ |
313 | progif = class & 0xff; |
314 | class >>= 8; |
315 | |
316 | if (class == PCI_CLASS_STORAGE_IDE) { |
317 | /* |
318 | * Unless both channels are native-PCI mode only, |
319 | * treat the compatibility IRQs as busy. |
320 | */ |
321 | if ((progif & 0x5) != 0x5) |
322 | if (pci_get_legacy_ide_irq(pci, 0) == irq || |
323 | pci_get_legacy_ide_irq(pci, 1) == irq) { |
324 | pnp_dbg(&pnp->dev, " legacy IDE device %s " |
325 | "using irq %d\n", pci_name(pci), irq); |
326 | return 1; |
327 | } |
328 | } |
329 | |
330 | return 0; |
331 | } |
332 | #endif |
333 | |
334 | static int pci_uses_irq(struct pnp_dev *pnp, unsigned int irq) |
335 | { |
336 | #ifdef CONFIG_PCI |
337 | struct pci_dev *pci = NULL; |
338 | |
339 | for_each_pci_dev(pci) { |
340 | if (pci_dev_uses_irq(pnp, pci, irq)) { |
341 | pci_dev_put(pci); |
342 | return 1; |
343 | } |
344 | } |
345 | #endif |
346 | return 0; |
347 | } |
348 | |
349 | int pnp_check_irq(struct pnp_dev *dev, struct resource *res) |
350 | { |
351 | int i; |
352 | struct pnp_dev *tdev; |
353 | struct resource *tres; |
354 | resource_size_t *irq; |
355 | |
356 | irq = &res->start; |
357 | |
358 | /* if the resource doesn't exist, don't complain about it */ |
359 | if (cannot_compare(res->flags)) |
360 | return 1; |
361 | |
362 | /* check if the resource is valid */ |
363 | if (*irq < 0 || *irq > 15) |
364 | return 0; |
365 | |
366 | /* check if the resource is reserved */ |
367 | for (i = 0; i < 16; i++) { |
368 | if (pnp_reserve_irq[i] == *irq) |
369 | return 0; |
370 | } |
371 | |
372 | /* check for internal conflicts */ |
373 | for (i = 0; (tres = pnp_get_resource(dev, IORESOURCE_IRQ, i)); i++) { |
374 | if (tres != res && tres->flags & IORESOURCE_IRQ) { |
375 | if (tres->start == *irq) |
376 | return 0; |
377 | } |
378 | } |
379 | |
380 | /* check if the resource is being used by a pci device */ |
381 | if (pci_uses_irq(dev, *irq)) |
382 | return 0; |
383 | |
384 | /* check if the resource is already in use, skip if the |
385 | * device is active because it itself may be in use */ |
386 | if (!dev->active) { |
387 | if (request_irq(*irq, pnp_test_handler, |
388 | IRQF_DISABLED | IRQF_PROBE_SHARED, "pnp", NULL)) |
389 | return 0; |
390 | free_irq(*irq, NULL); |
391 | } |
392 | |
393 | /* check for conflicts with other pnp devices */ |
394 | pnp_for_each_dev(tdev) { |
395 | if (tdev == dev) |
396 | continue; |
397 | for (i = 0; |
398 | (tres = pnp_get_resource(tdev, IORESOURCE_IRQ, i)); |
399 | i++) { |
400 | if (tres->flags & IORESOURCE_IRQ) { |
401 | if (cannot_compare(tres->flags)) |
402 | continue; |
403 | if (tres->start == *irq) |
404 | return 0; |
405 | } |
406 | } |
407 | } |
408 | |
409 | return 1; |
410 | } |
411 | |
412 | #ifdef CONFIG_ISA_DMA_API |
413 | int pnp_check_dma(struct pnp_dev *dev, struct resource *res) |
414 | { |
415 | int i; |
416 | struct pnp_dev *tdev; |
417 | struct resource *tres; |
418 | resource_size_t *dma; |
419 | |
420 | dma = &res->start; |
421 | |
422 | /* if the resource doesn't exist, don't complain about it */ |
423 | if (cannot_compare(res->flags)) |
424 | return 1; |
425 | |
426 | /* check if the resource is valid */ |
427 | if (*dma < 0 || *dma == 4 || *dma > 7) |
428 | return 0; |
429 | |
430 | /* check if the resource is reserved */ |
431 | for (i = 0; i < 8; i++) { |
432 | if (pnp_reserve_dma[i] == *dma) |
433 | return 0; |
434 | } |
435 | |
436 | /* check for internal conflicts */ |
437 | for (i = 0; (tres = pnp_get_resource(dev, IORESOURCE_DMA, i)); i++) { |
438 | if (tres != res && tres->flags & IORESOURCE_DMA) { |
439 | if (tres->start == *dma) |
440 | return 0; |
441 | } |
442 | } |
443 | |
444 | /* check if the resource is already in use, skip if the |
445 | * device is active because it itself may be in use */ |
446 | if (!dev->active) { |
447 | if (request_dma(*dma, "pnp")) |
448 | return 0; |
449 | free_dma(*dma); |
450 | } |
451 | |
452 | /* check for conflicts with other pnp devices */ |
453 | pnp_for_each_dev(tdev) { |
454 | if (tdev == dev) |
455 | continue; |
456 | for (i = 0; |
457 | (tres = pnp_get_resource(tdev, IORESOURCE_DMA, i)); |
458 | i++) { |
459 | if (tres->flags & IORESOURCE_DMA) { |
460 | if (cannot_compare(tres->flags)) |
461 | continue; |
462 | if (tres->start == *dma) |
463 | return 0; |
464 | } |
465 | } |
466 | } |
467 | |
468 | return 1; |
469 | } |
470 | #endif /* CONFIG_ISA_DMA_API */ |
471 | |
472 | unsigned long pnp_resource_type(struct resource *res) |
473 | { |
474 | return res->flags & (IORESOURCE_IO | IORESOURCE_MEM | |
475 | IORESOURCE_IRQ | IORESOURCE_DMA | |
476 | IORESOURCE_BUS); |
477 | } |
478 | |
479 | struct resource *pnp_get_resource(struct pnp_dev *dev, |
480 | unsigned long type, unsigned int num) |
481 | { |
482 | struct pnp_resource *pnp_res; |
483 | struct resource *res; |
484 | |
485 | list_for_each_entry(pnp_res, &dev->resources, list) { |
486 | res = &pnp_res->res; |
487 | if (pnp_resource_type(res) == type && num-- == 0) |
488 | return res; |
489 | } |
490 | return NULL; |
491 | } |
492 | EXPORT_SYMBOL(pnp_get_resource); |
493 | |
494 | static struct pnp_resource *pnp_new_resource(struct pnp_dev *dev) |
495 | { |
496 | struct pnp_resource *pnp_res; |
497 | |
498 | pnp_res = kzalloc(sizeof(struct pnp_resource), GFP_KERNEL); |
499 | if (!pnp_res) |
500 | return NULL; |
501 | |
502 | list_add_tail(&pnp_res->list, &dev->resources); |
503 | return pnp_res; |
504 | } |
505 | |
506 | struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq, |
507 | int flags) |
508 | { |
509 | struct pnp_resource *pnp_res; |
510 | struct resource *res; |
511 | |
512 | pnp_res = pnp_new_resource(dev); |
513 | if (!pnp_res) { |
514 | dev_err(&dev->dev, "can't add resource for IRQ %d\n", irq); |
515 | return NULL; |
516 | } |
517 | |
518 | res = &pnp_res->res; |
519 | res->flags = IORESOURCE_IRQ | flags; |
520 | res->start = irq; |
521 | res->end = irq; |
522 | |
523 | dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); |
524 | return pnp_res; |
525 | } |
526 | |
527 | struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma, |
528 | int flags) |
529 | { |
530 | struct pnp_resource *pnp_res; |
531 | struct resource *res; |
532 | |
533 | pnp_res = pnp_new_resource(dev); |
534 | if (!pnp_res) { |
535 | dev_err(&dev->dev, "can't add resource for DMA %d\n", dma); |
536 | return NULL; |
537 | } |
538 | |
539 | res = &pnp_res->res; |
540 | res->flags = IORESOURCE_DMA | flags; |
541 | res->start = dma; |
542 | res->end = dma; |
543 | |
544 | dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); |
545 | return pnp_res; |
546 | } |
547 | |
548 | struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev, |
549 | resource_size_t start, |
550 | resource_size_t end, int flags) |
551 | { |
552 | struct pnp_resource *pnp_res; |
553 | struct resource *res; |
554 | |
555 | pnp_res = pnp_new_resource(dev); |
556 | if (!pnp_res) { |
557 | dev_err(&dev->dev, "can't add resource for IO %#llx-%#llx\n", |
558 | (unsigned long long) start, |
559 | (unsigned long long) end); |
560 | return NULL; |
561 | } |
562 | |
563 | res = &pnp_res->res; |
564 | res->flags = IORESOURCE_IO | flags; |
565 | res->start = start; |
566 | res->end = end; |
567 | |
568 | dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); |
569 | return pnp_res; |
570 | } |
571 | |
572 | struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev, |
573 | resource_size_t start, |
574 | resource_size_t end, int flags) |
575 | { |
576 | struct pnp_resource *pnp_res; |
577 | struct resource *res; |
578 | |
579 | pnp_res = pnp_new_resource(dev); |
580 | if (!pnp_res) { |
581 | dev_err(&dev->dev, "can't add resource for MEM %#llx-%#llx\n", |
582 | (unsigned long long) start, |
583 | (unsigned long long) end); |
584 | return NULL; |
585 | } |
586 | |
587 | res = &pnp_res->res; |
588 | res->flags = IORESOURCE_MEM | flags; |
589 | res->start = start; |
590 | res->end = end; |
591 | |
592 | dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); |
593 | return pnp_res; |
594 | } |
595 | |
596 | struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev, |
597 | resource_size_t start, |
598 | resource_size_t end) |
599 | { |
600 | struct pnp_resource *pnp_res; |
601 | struct resource *res; |
602 | |
603 | pnp_res = pnp_new_resource(dev); |
604 | if (!pnp_res) { |
605 | dev_err(&dev->dev, "can't add resource for BUS %#llx-%#llx\n", |
606 | (unsigned long long) start, |
607 | (unsigned long long) end); |
608 | return NULL; |
609 | } |
610 | |
611 | res = &pnp_res->res; |
612 | res->flags = IORESOURCE_BUS; |
613 | res->start = start; |
614 | res->end = end; |
615 | |
616 | dev_printk(KERN_DEBUG, &dev->dev, "%pR\n", res); |
617 | return pnp_res; |
618 | } |
619 | |
620 | /* |
621 | * Determine whether the specified resource is a possible configuration |
622 | * for this device. |
623 | */ |
624 | int pnp_possible_config(struct pnp_dev *dev, int type, resource_size_t start, |
625 | resource_size_t size) |
626 | { |
627 | struct pnp_option *option; |
628 | struct pnp_port *port; |
629 | struct pnp_mem *mem; |
630 | struct pnp_irq *irq; |
631 | struct pnp_dma *dma; |
632 | |
633 | list_for_each_entry(option, &dev->options, list) { |
634 | if (option->type != type) |
635 | continue; |
636 | |
637 | switch (option->type) { |
638 | case IORESOURCE_IO: |
639 | port = &option->u.port; |
640 | if (port->min == start && port->size == size) |
641 | return 1; |
642 | break; |
643 | case IORESOURCE_MEM: |
644 | mem = &option->u.mem; |
645 | if (mem->min == start && mem->size == size) |
646 | return 1; |
647 | break; |
648 | case IORESOURCE_IRQ: |
649 | irq = &option->u.irq; |
650 | if (start < PNP_IRQ_NR && |
651 | test_bit(start, irq->map.bits)) |
652 | return 1; |
653 | break; |
654 | case IORESOURCE_DMA: |
655 | dma = &option->u.dma; |
656 | if (dma->map & (1 << start)) |
657 | return 1; |
658 | break; |
659 | } |
660 | } |
661 | |
662 | return 0; |
663 | } |
664 | EXPORT_SYMBOL(pnp_possible_config); |
665 | |
666 | int pnp_range_reserved(resource_size_t start, resource_size_t end) |
667 | { |
668 | struct pnp_dev *dev; |
669 | struct pnp_resource *pnp_res; |
670 | resource_size_t *dev_start, *dev_end; |
671 | |
672 | pnp_for_each_dev(dev) { |
673 | list_for_each_entry(pnp_res, &dev->resources, list) { |
674 | dev_start = &pnp_res->res.start; |
675 | dev_end = &pnp_res->res.end; |
676 | if (ranged_conflict(&start, &end, dev_start, dev_end)) |
677 | return 1; |
678 | } |
679 | } |
680 | return 0; |
681 | } |
682 | EXPORT_SYMBOL(pnp_range_reserved); |
683 | |
684 | /* format is: pnp_reserve_irq=irq1[,irq2] .... */ |
685 | static int __init pnp_setup_reserve_irq(char *str) |
686 | { |
687 | int i; |
688 | |
689 | for (i = 0; i < 16; i++) |
690 | if (get_option(&str, &pnp_reserve_irq[i]) != 2) |
691 | break; |
692 | return 1; |
693 | } |
694 | |
695 | __setup("pnp_reserve_irq=", pnp_setup_reserve_irq); |
696 | |
697 | /* format is: pnp_reserve_dma=dma1[,dma2] .... */ |
698 | static int __init pnp_setup_reserve_dma(char *str) |
699 | { |
700 | int i; |
701 | |
702 | for (i = 0; i < 8; i++) |
703 | if (get_option(&str, &pnp_reserve_dma[i]) != 2) |
704 | break; |
705 | return 1; |
706 | } |
707 | |
708 | __setup("pnp_reserve_dma=", pnp_setup_reserve_dma); |
709 | |
710 | /* format is: pnp_reserve_io=io1,size1[,io2,size2] .... */ |
711 | static int __init pnp_setup_reserve_io(char *str) |
712 | { |
713 | int i; |
714 | |
715 | for (i = 0; i < 16; i++) |
716 | if (get_option(&str, &pnp_reserve_io[i]) != 2) |
717 | break; |
718 | return 1; |
719 | } |
720 | |
721 | __setup("pnp_reserve_io=", pnp_setup_reserve_io); |
722 | |
723 | /* format is: pnp_reserve_mem=mem1,size1[,mem2,size2] .... */ |
724 | static int __init pnp_setup_reserve_mem(char *str) |
725 | { |
726 | int i; |
727 | |
728 | for (i = 0; i < 16; i++) |
729 | if (get_option(&str, &pnp_reserve_mem[i]) != 2) |
730 | break; |
731 | return 1; |
732 | } |
733 | |
734 | __setup("pnp_reserve_mem=", pnp_setup_reserve_mem); |
735 |
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