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1da177e4 LT |
1 | /* |
2 | * pnpacpi -- PnP ACPI driver | |
3 | * | |
4 | * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr> | |
5 | * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/acpi.h> | |
23 | #include <linux/pci.h> | |
24 | #include "pnpacpi.h" | |
25 | ||
26 | #ifdef CONFIG_IA64 | |
27 | #define valid_IRQ(i) (1) | |
28 | #else | |
29 | #define valid_IRQ(i) (((i) != 0) && ((i) != 2)) | |
30 | #endif | |
31 | ||
32 | /* | |
33 | * Allocated Resources | |
34 | */ | |
35 | static int irq_flags(int edge_level, int active_high_low) | |
36 | { | |
37 | int flag; | |
38 | if (edge_level == ACPI_LEVEL_SENSITIVE) { | |
39 | if(active_high_low == ACPI_ACTIVE_LOW) | |
40 | flag = IORESOURCE_IRQ_LOWLEVEL; | |
41 | else | |
42 | flag = IORESOURCE_IRQ_HIGHLEVEL; | |
43 | } | |
44 | else { | |
45 | if(active_high_low == ACPI_ACTIVE_LOW) | |
46 | flag = IORESOURCE_IRQ_LOWEDGE; | |
47 | else | |
48 | flag = IORESOURCE_IRQ_HIGHEDGE; | |
49 | } | |
50 | return flag; | |
51 | } | |
52 | ||
53 | static void decode_irq_flags(int flag, int *edge_level, int *active_high_low) | |
54 | { | |
55 | switch (flag) { | |
56 | case IORESOURCE_IRQ_LOWLEVEL: | |
57 | *edge_level = ACPI_LEVEL_SENSITIVE; | |
58 | *active_high_low = ACPI_ACTIVE_LOW; | |
59 | break; | |
60 | case IORESOURCE_IRQ_HIGHLEVEL: | |
61 | *edge_level = ACPI_LEVEL_SENSITIVE; | |
62 | *active_high_low = ACPI_ACTIVE_HIGH; | |
63 | break; | |
64 | case IORESOURCE_IRQ_LOWEDGE: | |
65 | *edge_level = ACPI_EDGE_SENSITIVE; | |
66 | *active_high_low = ACPI_ACTIVE_LOW; | |
67 | break; | |
68 | case IORESOURCE_IRQ_HIGHEDGE: | |
69 | *edge_level = ACPI_EDGE_SENSITIVE; | |
70 | *active_high_low = ACPI_ACTIVE_HIGH; | |
71 | break; | |
72 | } | |
73 | } | |
74 | ||
75 | static void | |
76 | pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq) | |
77 | { | |
78 | int i = 0; | |
79 | while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) && | |
80 | i < PNP_MAX_IRQ) | |
81 | i++; | |
82 | if (i < PNP_MAX_IRQ) { | |
83 | res->irq_resource[i].flags = IORESOURCE_IRQ; //Also clears _UNSET flag | |
84 | if (irq == -1) { | |
85 | res->irq_resource[i].flags |= IORESOURCE_DISABLED; | |
86 | return; | |
87 | } | |
88 | res->irq_resource[i].start =(unsigned long) irq; | |
89 | res->irq_resource[i].end = (unsigned long) irq; | |
90 | } | |
91 | } | |
92 | ||
93 | static void | |
94 | pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma) | |
95 | { | |
96 | int i = 0; | |
97 | while (!(res->dma_resource[i].flags & IORESOURCE_UNSET) && | |
98 | i < PNP_MAX_DMA) | |
99 | i++; | |
100 | if (i < PNP_MAX_DMA) { | |
101 | res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag | |
102 | if (dma == -1) { | |
103 | res->dma_resource[i].flags |= IORESOURCE_DISABLED; | |
104 | return; | |
105 | } | |
106 | res->dma_resource[i].start =(unsigned long) dma; | |
107 | res->dma_resource[i].end = (unsigned long) dma; | |
108 | } | |
109 | } | |
110 | ||
111 | static void | |
112 | pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res, | |
113 | int io, int len) | |
114 | { | |
115 | int i = 0; | |
116 | while (!(res->port_resource[i].flags & IORESOURCE_UNSET) && | |
117 | i < PNP_MAX_PORT) | |
118 | i++; | |
119 | if (i < PNP_MAX_PORT) { | |
120 | res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag | |
121 | if (len <= 0 || (io + len -1) >= 0x10003) { | |
122 | res->port_resource[i].flags |= IORESOURCE_DISABLED; | |
123 | return; | |
124 | } | |
125 | res->port_resource[i].start = (unsigned long) io; | |
126 | res->port_resource[i].end = (unsigned long)(io + len - 1); | |
127 | } | |
128 | } | |
129 | ||
130 | static void | |
131 | pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res, | |
132 | int mem, int len) | |
133 | { | |
134 | int i = 0; | |
135 | while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) && | |
136 | (i < PNP_MAX_MEM)) | |
137 | i++; | |
138 | if (i < PNP_MAX_MEM) { | |
139 | res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag | |
140 | if (len <= 0) { | |
141 | res->mem_resource[i].flags |= IORESOURCE_DISABLED; | |
142 | return; | |
143 | } | |
144 | res->mem_resource[i].start = (unsigned long) mem; | |
145 | res->mem_resource[i].end = (unsigned long)(mem + len - 1); | |
146 | } | |
147 | } | |
148 | ||
149 | ||
150 | static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, | |
151 | void *data) | |
152 | { | |
153 | struct pnp_resource_table * res_table = (struct pnp_resource_table *)data; | |
154 | ||
155 | switch (res->id) { | |
156 | case ACPI_RSTYPE_IRQ: | |
157 | if ((res->data.irq.number_of_interrupts > 0) && | |
158 | valid_IRQ(res->data.irq.interrupts[0])) { | |
159 | pnpacpi_parse_allocated_irqresource(res_table, | |
160 | acpi_register_gsi(res->data.irq.interrupts[0], | |
161 | res->data.irq.edge_level, | |
162 | res->data.irq.active_high_low)); | |
163 | pcibios_penalize_isa_irq(res->data.irq.interrupts[0]); | |
164 | } | |
165 | break; | |
166 | ||
167 | case ACPI_RSTYPE_EXT_IRQ: | |
168 | if ((res->data.extended_irq.number_of_interrupts > 0) && | |
169 | valid_IRQ(res->data.extended_irq.interrupts[0])) { | |
170 | pnpacpi_parse_allocated_irqresource(res_table, | |
171 | acpi_register_gsi(res->data.extended_irq.interrupts[0], | |
172 | res->data.extended_irq.edge_level, | |
173 | res->data.extended_irq.active_high_low)); | |
174 | pcibios_penalize_isa_irq(res->data.extended_irq.interrupts[0]); | |
175 | } | |
176 | break; | |
177 | case ACPI_RSTYPE_DMA: | |
178 | if (res->data.dma.number_of_channels > 0) | |
179 | pnpacpi_parse_allocated_dmaresource(res_table, | |
180 | res->data.dma.channels[0]); | |
181 | break; | |
182 | case ACPI_RSTYPE_IO: | |
183 | pnpacpi_parse_allocated_ioresource(res_table, | |
184 | res->data.io.min_base_address, | |
185 | res->data.io.range_length); | |
186 | break; | |
187 | case ACPI_RSTYPE_FIXED_IO: | |
188 | pnpacpi_parse_allocated_ioresource(res_table, | |
189 | res->data.fixed_io.base_address, | |
190 | res->data.fixed_io.range_length); | |
191 | break; | |
192 | case ACPI_RSTYPE_MEM24: | |
193 | pnpacpi_parse_allocated_memresource(res_table, | |
194 | res->data.memory24.min_base_address, | |
195 | res->data.memory24.range_length); | |
196 | break; | |
197 | case ACPI_RSTYPE_MEM32: | |
198 | pnpacpi_parse_allocated_memresource(res_table, | |
199 | res->data.memory32.min_base_address, | |
200 | res->data.memory32.range_length); | |
201 | break; | |
202 | case ACPI_RSTYPE_FIXED_MEM32: | |
203 | pnpacpi_parse_allocated_memresource(res_table, | |
204 | res->data.fixed_memory32.range_base_address, | |
205 | res->data.fixed_memory32.range_length); | |
206 | break; | |
207 | case ACPI_RSTYPE_ADDRESS16: | |
208 | pnpacpi_parse_allocated_memresource(res_table, | |
209 | res->data.address16.min_address_range, | |
210 | res->data.address16.address_length); | |
211 | break; | |
212 | case ACPI_RSTYPE_ADDRESS32: | |
213 | pnpacpi_parse_allocated_memresource(res_table, | |
214 | res->data.address32.min_address_range, | |
215 | res->data.address32.address_length); | |
216 | break; | |
217 | case ACPI_RSTYPE_ADDRESS64: | |
218 | pnpacpi_parse_allocated_memresource(res_table, | |
219 | res->data.address64.min_address_range, | |
220 | res->data.address64.address_length); | |
221 | break; | |
222 | case ACPI_RSTYPE_VENDOR: | |
223 | break; | |
224 | default: | |
225 | pnp_warn("PnPACPI: unknown resource type %d", res->id); | |
226 | return AE_ERROR; | |
227 | } | |
228 | ||
229 | return AE_OK; | |
230 | } | |
231 | ||
232 | acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res) | |
233 | { | |
234 | /* Blank the resource table values */ | |
235 | pnp_init_resource_table(res); | |
236 | ||
237 | return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res); | |
238 | } | |
239 | ||
240 | static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p) | |
241 | { | |
242 | int i; | |
243 | struct pnp_dma * dma; | |
244 | ||
245 | if (p->number_of_channels == 0) | |
246 | return; | |
247 | dma = pnpacpi_kmalloc(sizeof(struct pnp_dma), GFP_KERNEL); | |
248 | if (!dma) | |
249 | return; | |
250 | ||
251 | for(i = 0; i < p->number_of_channels; i++) | |
252 | dma->map |= 1 << p->channels[i]; | |
253 | dma->flags = 0; | |
254 | if (p->bus_master) | |
255 | dma->flags |= IORESOURCE_DMA_MASTER; | |
256 | switch (p->type) { | |
257 | case ACPI_COMPATIBILITY: | |
258 | dma->flags |= IORESOURCE_DMA_COMPATIBLE; | |
259 | break; | |
260 | case ACPI_TYPE_A: | |
261 | dma->flags |= IORESOURCE_DMA_TYPEA; | |
262 | break; | |
263 | case ACPI_TYPE_B: | |
264 | dma->flags |= IORESOURCE_DMA_TYPEB; | |
265 | break; | |
266 | case ACPI_TYPE_F: | |
267 | dma->flags |= IORESOURCE_DMA_TYPEF; | |
268 | break; | |
269 | default: | |
270 | /* Set a default value ? */ | |
271 | dma->flags |= IORESOURCE_DMA_COMPATIBLE; | |
272 | pnp_err("Invalid DMA type"); | |
273 | } | |
274 | switch (p->transfer) { | |
275 | case ACPI_TRANSFER_8: | |
276 | dma->flags |= IORESOURCE_DMA_8BIT; | |
277 | break; | |
278 | case ACPI_TRANSFER_8_16: | |
279 | dma->flags |= IORESOURCE_DMA_8AND16BIT; | |
280 | break; | |
281 | case ACPI_TRANSFER_16: | |
282 | dma->flags |= IORESOURCE_DMA_16BIT; | |
283 | break; | |
284 | default: | |
285 | /* Set a default value ? */ | |
286 | dma->flags |= IORESOURCE_DMA_8AND16BIT; | |
287 | pnp_err("Invalid DMA transfer type"); | |
288 | } | |
289 | ||
290 | pnp_register_dma_resource(option,dma); | |
291 | return; | |
292 | } | |
293 | ||
294 | ||
295 | static void pnpacpi_parse_irq_option(struct pnp_option *option, | |
296 | struct acpi_resource_irq *p) | |
297 | { | |
298 | int i; | |
299 | struct pnp_irq * irq; | |
300 | ||
301 | if (p->number_of_interrupts == 0) | |
302 | return; | |
303 | irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL); | |
304 | if (!irq) | |
305 | return; | |
306 | ||
307 | for(i = 0; i < p->number_of_interrupts; i++) | |
308 | if (p->interrupts[i]) | |
309 | __set_bit(p->interrupts[i], irq->map); | |
310 | irq->flags = irq_flags(p->edge_level, p->active_high_low); | |
311 | ||
312 | pnp_register_irq_resource(option, irq); | |
313 | return; | |
314 | } | |
315 | ||
316 | static void pnpacpi_parse_ext_irq_option(struct pnp_option *option, | |
317 | struct acpi_resource_ext_irq *p) | |
318 | { | |
319 | int i; | |
320 | struct pnp_irq * irq; | |
321 | ||
322 | if (p->number_of_interrupts == 0) | |
323 | return; | |
324 | irq = pnpacpi_kmalloc(sizeof(struct pnp_irq), GFP_KERNEL); | |
325 | if (!irq) | |
326 | return; | |
327 | ||
328 | for(i = 0; i < p->number_of_interrupts; i++) | |
329 | if (p->interrupts[i]) | |
330 | __set_bit(p->interrupts[i], irq->map); | |
331 | irq->flags = irq_flags(p->edge_level, p->active_high_low); | |
332 | ||
333 | pnp_register_irq_resource(option, irq); | |
334 | return; | |
335 | } | |
336 | ||
337 | static void | |
338 | pnpacpi_parse_port_option(struct pnp_option *option, | |
339 | struct acpi_resource_io *io) | |
340 | { | |
341 | struct pnp_port * port; | |
342 | ||
343 | if (io->range_length == 0) | |
344 | return; | |
345 | port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL); | |
346 | if (!port) | |
347 | return; | |
348 | port->min = io->min_base_address; | |
349 | port->max = io->max_base_address; | |
350 | port->align = io->alignment; | |
351 | port->size = io->range_length; | |
352 | port->flags = ACPI_DECODE_16 == io->io_decode ? | |
353 | PNP_PORT_FLAG_16BITADDR : 0; | |
354 | pnp_register_port_resource(option,port); | |
355 | return; | |
356 | } | |
357 | ||
358 | static void | |
359 | pnpacpi_parse_fixed_port_option(struct pnp_option *option, | |
360 | struct acpi_resource_fixed_io *io) | |
361 | { | |
362 | struct pnp_port * port; | |
363 | ||
364 | if (io->range_length == 0) | |
365 | return; | |
366 | port = pnpacpi_kmalloc(sizeof(struct pnp_port), GFP_KERNEL); | |
367 | if (!port) | |
368 | return; | |
369 | port->min = port->max = io->base_address; | |
370 | port->size = io->range_length; | |
371 | port->align = 0; | |
372 | port->flags = PNP_PORT_FLAG_FIXED; | |
373 | pnp_register_port_resource(option,port); | |
374 | return; | |
375 | } | |
376 | ||
377 | static void | |
378 | pnpacpi_parse_mem24_option(struct pnp_option *option, | |
379 | struct acpi_resource_mem24 *p) | |
380 | { | |
381 | struct pnp_mem * mem; | |
382 | ||
383 | if (p->range_length == 0) | |
384 | return; | |
385 | mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); | |
386 | if (!mem) | |
387 | return; | |
388 | mem->min = p->min_base_address; | |
389 | mem->max = p->max_base_address; | |
390 | mem->align = p->alignment; | |
391 | mem->size = p->range_length; | |
392 | ||
393 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
394 | IORESOURCE_MEM_WRITEABLE : 0; | |
395 | ||
396 | pnp_register_mem_resource(option,mem); | |
397 | return; | |
398 | } | |
399 | ||
400 | static void | |
401 | pnpacpi_parse_mem32_option(struct pnp_option *option, | |
402 | struct acpi_resource_mem32 *p) | |
403 | { | |
404 | struct pnp_mem * mem; | |
405 | ||
406 | if (p->range_length == 0) | |
407 | return; | |
408 | mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); | |
409 | if (!mem) | |
410 | return; | |
411 | mem->min = p->min_base_address; | |
412 | mem->max = p->max_base_address; | |
413 | mem->align = p->alignment; | |
414 | mem->size = p->range_length; | |
415 | ||
416 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
417 | IORESOURCE_MEM_WRITEABLE : 0; | |
418 | ||
419 | pnp_register_mem_resource(option,mem); | |
420 | return; | |
421 | } | |
422 | ||
423 | static void | |
424 | pnpacpi_parse_fixed_mem32_option(struct pnp_option *option, | |
425 | struct acpi_resource_fixed_mem32 *p) | |
426 | { | |
427 | struct pnp_mem * mem; | |
428 | ||
429 | if (p->range_length == 0) | |
430 | return; | |
431 | mem = pnpacpi_kmalloc(sizeof(struct pnp_mem), GFP_KERNEL); | |
432 | if (!mem) | |
433 | return; | |
434 | mem->min = mem->max = p->range_base_address; | |
435 | mem->size = p->range_length; | |
436 | mem->align = 0; | |
437 | ||
438 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
439 | IORESOURCE_MEM_WRITEABLE : 0; | |
440 | ||
441 | pnp_register_mem_resource(option,mem); | |
442 | return; | |
443 | } | |
444 | ||
445 | struct acpipnp_parse_option_s { | |
446 | struct pnp_option *option; | |
447 | struct pnp_dev *dev; | |
448 | }; | |
449 | ||
450 | static acpi_status pnpacpi_option_resource(struct acpi_resource *res, | |
451 | void *data) | |
452 | { | |
453 | int priority = 0; | |
454 | struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data; | |
455 | struct pnp_dev *dev = parse_data->dev; | |
456 | struct pnp_option *option = parse_data->option; | |
457 | ||
458 | switch (res->id) { | |
459 | case ACPI_RSTYPE_IRQ: | |
460 | pnpacpi_parse_irq_option(option, &res->data.irq); | |
461 | break; | |
462 | case ACPI_RSTYPE_EXT_IRQ: | |
463 | pnpacpi_parse_ext_irq_option(option, | |
464 | &res->data.extended_irq); | |
465 | break; | |
466 | case ACPI_RSTYPE_DMA: | |
467 | pnpacpi_parse_dma_option(option, &res->data.dma); | |
468 | break; | |
469 | case ACPI_RSTYPE_IO: | |
470 | pnpacpi_parse_port_option(option, &res->data.io); | |
471 | break; | |
472 | case ACPI_RSTYPE_FIXED_IO: | |
473 | pnpacpi_parse_fixed_port_option(option, | |
474 | &res->data.fixed_io); | |
475 | break; | |
476 | case ACPI_RSTYPE_MEM24: | |
477 | pnpacpi_parse_mem24_option(option, &res->data.memory24); | |
478 | break; | |
479 | case ACPI_RSTYPE_MEM32: | |
480 | pnpacpi_parse_mem32_option(option, &res->data.memory32); | |
481 | break; | |
482 | case ACPI_RSTYPE_FIXED_MEM32: | |
483 | pnpacpi_parse_fixed_mem32_option(option, | |
484 | &res->data.fixed_memory32); | |
485 | break; | |
486 | case ACPI_RSTYPE_START_DPF: | |
487 | switch (res->data.start_dpf.compatibility_priority) { | |
488 | case ACPI_GOOD_CONFIGURATION: | |
489 | priority = PNP_RES_PRIORITY_PREFERRED; | |
490 | break; | |
491 | ||
492 | case ACPI_ACCEPTABLE_CONFIGURATION: | |
493 | priority = PNP_RES_PRIORITY_ACCEPTABLE; | |
494 | break; | |
495 | ||
496 | case ACPI_SUB_OPTIMAL_CONFIGURATION: | |
497 | priority = PNP_RES_PRIORITY_FUNCTIONAL; | |
498 | break; | |
499 | default: | |
500 | priority = PNP_RES_PRIORITY_INVALID; | |
501 | break; | |
502 | } | |
503 | /* TBD: Considering performace/robustness bits */ | |
504 | option = pnp_register_dependent_option(dev, priority); | |
505 | if (!option) | |
506 | return AE_ERROR; | |
507 | parse_data->option = option; | |
508 | break; | |
509 | case ACPI_RSTYPE_END_DPF: | |
510 | return AE_CTRL_TERMINATE; | |
511 | default: | |
512 | pnp_warn("PnPACPI: unknown resource type %d", res->id); | |
513 | return AE_ERROR; | |
514 | } | |
515 | ||
516 | return AE_OK; | |
517 | } | |
518 | ||
519 | acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle, | |
520 | struct pnp_dev *dev) | |
521 | { | |
522 | acpi_status status; | |
523 | struct acpipnp_parse_option_s parse_data; | |
524 | ||
525 | parse_data.option = pnp_register_independent_option(dev); | |
526 | if (!parse_data.option) | |
527 | return AE_ERROR; | |
528 | parse_data.dev = dev; | |
529 | status = acpi_walk_resources(handle, METHOD_NAME__PRS, | |
530 | pnpacpi_option_resource, &parse_data); | |
531 | ||
532 | return status; | |
533 | } | |
534 | ||
535 | /* | |
536 | * Set resource | |
537 | */ | |
538 | static acpi_status pnpacpi_count_resources(struct acpi_resource *res, | |
539 | void *data) | |
540 | { | |
541 | int *res_cnt = (int *)data; | |
542 | switch (res->id) { | |
543 | case ACPI_RSTYPE_IRQ: | |
544 | case ACPI_RSTYPE_EXT_IRQ: | |
545 | case ACPI_RSTYPE_DMA: | |
546 | case ACPI_RSTYPE_IO: | |
547 | case ACPI_RSTYPE_FIXED_IO: | |
548 | case ACPI_RSTYPE_MEM24: | |
549 | case ACPI_RSTYPE_MEM32: | |
550 | case ACPI_RSTYPE_FIXED_MEM32: | |
551 | #if 0 | |
552 | case ACPI_RSTYPE_ADDRESS16: | |
553 | case ACPI_RSTYPE_ADDRESS32: | |
554 | case ACPI_RSTYPE_ADDRESS64: | |
555 | #endif | |
556 | (*res_cnt) ++; | |
557 | default: | |
558 | return AE_OK; | |
559 | } | |
560 | return AE_OK; | |
561 | } | |
562 | ||
563 | static acpi_status pnpacpi_type_resources(struct acpi_resource *res, | |
564 | void *data) | |
565 | { | |
566 | struct acpi_resource **resource = (struct acpi_resource **)data; | |
567 | switch (res->id) { | |
568 | case ACPI_RSTYPE_IRQ: | |
569 | case ACPI_RSTYPE_EXT_IRQ: | |
570 | case ACPI_RSTYPE_DMA: | |
571 | case ACPI_RSTYPE_IO: | |
572 | case ACPI_RSTYPE_FIXED_IO: | |
573 | case ACPI_RSTYPE_MEM24: | |
574 | case ACPI_RSTYPE_MEM32: | |
575 | case ACPI_RSTYPE_FIXED_MEM32: | |
576 | #if 0 | |
577 | case ACPI_RSTYPE_ADDRESS16: | |
578 | case ACPI_RSTYPE_ADDRESS32: | |
579 | case ACPI_RSTYPE_ADDRESS64: | |
580 | #endif | |
581 | (*resource)->id = res->id; | |
582 | (*resource)++; | |
583 | default: | |
584 | return AE_OK; | |
585 | } | |
586 | ||
587 | return AE_OK; | |
588 | } | |
589 | ||
590 | int pnpacpi_build_resource_template(acpi_handle handle, | |
591 | struct acpi_buffer *buffer) | |
592 | { | |
593 | struct acpi_resource *resource; | |
594 | int res_cnt = 0; | |
595 | acpi_status status; | |
596 | ||
597 | status = acpi_walk_resources(handle, METHOD_NAME__CRS, | |
598 | pnpacpi_count_resources, &res_cnt); | |
599 | if (ACPI_FAILURE(status)) { | |
600 | pnp_err("Evaluate _CRS failed"); | |
601 | return -EINVAL; | |
602 | } | |
603 | if (!res_cnt) | |
604 | return -EINVAL; | |
605 | buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1; | |
606 | buffer->pointer = pnpacpi_kmalloc(buffer->length - 1, GFP_KERNEL); | |
607 | if (!buffer->pointer) | |
608 | return -ENOMEM; | |
609 | pnp_dbg("Res cnt %d", res_cnt); | |
610 | resource = (struct acpi_resource *)buffer->pointer; | |
611 | status = acpi_walk_resources(handle, METHOD_NAME__CRS, | |
612 | pnpacpi_type_resources, &resource); | |
613 | if (ACPI_FAILURE(status)) { | |
614 | kfree(buffer->pointer); | |
615 | pnp_err("Evaluate _CRS failed"); | |
616 | return -EINVAL; | |
617 | } | |
618 | /* resource will pointer the end resource now */ | |
619 | resource->id = ACPI_RSTYPE_END_TAG; | |
620 | ||
621 | return 0; | |
622 | } | |
623 | ||
624 | static void pnpacpi_encode_irq(struct acpi_resource *resource, | |
625 | struct resource *p) | |
626 | { | |
627 | int edge_level, active_high_low; | |
628 | ||
629 | decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, | |
630 | &active_high_low); | |
631 | resource->id = ACPI_RSTYPE_IRQ; | |
632 | resource->length = sizeof(struct acpi_resource); | |
633 | resource->data.irq.edge_level = edge_level; | |
634 | resource->data.irq.active_high_low = active_high_low; | |
635 | if (edge_level == ACPI_EDGE_SENSITIVE) | |
636 | resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE; | |
637 | else | |
638 | resource->data.irq.shared_exclusive = ACPI_SHARED; | |
639 | resource->data.irq.number_of_interrupts = 1; | |
640 | resource->data.irq.interrupts[0] = p->start; | |
641 | } | |
642 | ||
643 | static void pnpacpi_encode_ext_irq(struct acpi_resource *resource, | |
644 | struct resource *p) | |
645 | { | |
646 | int edge_level, active_high_low; | |
647 | ||
648 | decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, | |
649 | &active_high_low); | |
650 | resource->id = ACPI_RSTYPE_EXT_IRQ; | |
651 | resource->length = sizeof(struct acpi_resource); | |
652 | resource->data.extended_irq.producer_consumer = ACPI_CONSUMER; | |
653 | resource->data.extended_irq.edge_level = edge_level; | |
654 | resource->data.extended_irq.active_high_low = active_high_low; | |
655 | if (edge_level == ACPI_EDGE_SENSITIVE) | |
656 | resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE; | |
657 | else | |
658 | resource->data.irq.shared_exclusive = ACPI_SHARED; | |
659 | resource->data.extended_irq.number_of_interrupts = 1; | |
660 | resource->data.extended_irq.interrupts[0] = p->start; | |
661 | } | |
662 | ||
663 | static void pnpacpi_encode_dma(struct acpi_resource *resource, | |
664 | struct resource *p) | |
665 | { | |
666 | resource->id = ACPI_RSTYPE_DMA; | |
667 | resource->length = sizeof(struct acpi_resource); | |
668 | /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */ | |
669 | if (p->flags & IORESOURCE_DMA_COMPATIBLE) | |
670 | resource->data.dma.type = ACPI_COMPATIBILITY; | |
671 | else if (p->flags & IORESOURCE_DMA_TYPEA) | |
672 | resource->data.dma.type = ACPI_TYPE_A; | |
673 | else if (p->flags & IORESOURCE_DMA_TYPEB) | |
674 | resource->data.dma.type = ACPI_TYPE_B; | |
675 | else if (p->flags & IORESOURCE_DMA_TYPEF) | |
676 | resource->data.dma.type = ACPI_TYPE_F; | |
677 | if (p->flags & IORESOURCE_DMA_8BIT) | |
678 | resource->data.dma.transfer = ACPI_TRANSFER_8; | |
679 | else if (p->flags & IORESOURCE_DMA_8AND16BIT) | |
680 | resource->data.dma.transfer = ACPI_TRANSFER_8_16; | |
681 | else if (p->flags & IORESOURCE_DMA_16BIT) | |
682 | resource->data.dma.transfer = ACPI_TRANSFER_16; | |
683 | resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER; | |
684 | resource->data.dma.number_of_channels = 1; | |
685 | resource->data.dma.channels[0] = p->start; | |
686 | } | |
687 | ||
688 | static void pnpacpi_encode_io(struct acpi_resource *resource, | |
689 | struct resource *p) | |
690 | { | |
691 | resource->id = ACPI_RSTYPE_IO; | |
692 | resource->length = sizeof(struct acpi_resource); | |
693 | /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */ | |
694 | resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)? | |
695 | ACPI_DECODE_16 : ACPI_DECODE_10; | |
696 | resource->data.io.min_base_address = p->start; | |
697 | resource->data.io.max_base_address = p->end; | |
698 | resource->data.io.alignment = 0; /* Correct? */ | |
699 | resource->data.io.range_length = p->end - p->start + 1; | |
700 | } | |
701 | ||
702 | static void pnpacpi_encode_fixed_io(struct acpi_resource *resource, | |
703 | struct resource *p) | |
704 | { | |
705 | resource->id = ACPI_RSTYPE_FIXED_IO; | |
706 | resource->length = sizeof(struct acpi_resource); | |
707 | resource->data.fixed_io.base_address = p->start; | |
708 | resource->data.fixed_io.range_length = p->end - p->start + 1; | |
709 | } | |
710 | ||
711 | static void pnpacpi_encode_mem24(struct acpi_resource *resource, | |
712 | struct resource *p) | |
713 | { | |
714 | resource->id = ACPI_RSTYPE_MEM24; | |
715 | resource->length = sizeof(struct acpi_resource); | |
716 | /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */ | |
717 | resource->data.memory24.read_write_attribute = | |
718 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
719 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
720 | resource->data.memory24.min_base_address = p->start; | |
721 | resource->data.memory24.max_base_address = p->end; | |
722 | resource->data.memory24.alignment = 0; | |
723 | resource->data.memory24.range_length = p->end - p->start + 1; | |
724 | } | |
725 | ||
726 | static void pnpacpi_encode_mem32(struct acpi_resource *resource, | |
727 | struct resource *p) | |
728 | { | |
729 | resource->id = ACPI_RSTYPE_MEM32; | |
730 | resource->length = sizeof(struct acpi_resource); | |
731 | resource->data.memory32.read_write_attribute = | |
732 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
733 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
734 | resource->data.memory32.min_base_address = p->start; | |
735 | resource->data.memory32.max_base_address = p->end; | |
736 | resource->data.memory32.alignment = 0; | |
737 | resource->data.memory32.range_length = p->end - p->start + 1; | |
738 | } | |
739 | ||
740 | static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource, | |
741 | struct resource *p) | |
742 | { | |
743 | resource->id = ACPI_RSTYPE_FIXED_MEM32; | |
744 | resource->length = sizeof(struct acpi_resource); | |
745 | resource->data.fixed_memory32.read_write_attribute = | |
746 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
747 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
748 | resource->data.fixed_memory32.range_base_address = p->start; | |
749 | resource->data.fixed_memory32.range_length = p->end - p->start + 1; | |
750 | } | |
751 | ||
752 | int pnpacpi_encode_resources(struct pnp_resource_table *res_table, | |
753 | struct acpi_buffer *buffer) | |
754 | { | |
755 | int i = 0; | |
756 | /* pnpacpi_build_resource_template allocates extra mem */ | |
757 | int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1; | |
758 | struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer; | |
759 | int port = 0, irq = 0, dma = 0, mem = 0; | |
760 | ||
761 | pnp_dbg("res cnt %d", res_cnt); | |
762 | while (i < res_cnt) { | |
763 | switch(resource->id) { | |
764 | case ACPI_RSTYPE_IRQ: | |
765 | pnp_dbg("Encode irq"); | |
766 | pnpacpi_encode_irq(resource, | |
767 | &res_table->irq_resource[irq]); | |
768 | irq++; | |
769 | break; | |
770 | ||
771 | case ACPI_RSTYPE_EXT_IRQ: | |
772 | pnp_dbg("Encode ext irq"); | |
773 | pnpacpi_encode_ext_irq(resource, | |
774 | &res_table->irq_resource[irq]); | |
775 | irq++; | |
776 | break; | |
777 | case ACPI_RSTYPE_DMA: | |
778 | pnp_dbg("Encode dma"); | |
779 | pnpacpi_encode_dma(resource, | |
780 | &res_table->dma_resource[dma]); | |
781 | dma ++; | |
782 | break; | |
783 | case ACPI_RSTYPE_IO: | |
784 | pnp_dbg("Encode io"); | |
785 | pnpacpi_encode_io(resource, | |
786 | &res_table->port_resource[port]); | |
787 | port ++; | |
788 | break; | |
789 | case ACPI_RSTYPE_FIXED_IO: | |
790 | pnp_dbg("Encode fixed io"); | |
791 | pnpacpi_encode_fixed_io(resource, | |
792 | &res_table->port_resource[port]); | |
793 | port ++; | |
794 | break; | |
795 | case ACPI_RSTYPE_MEM24: | |
796 | pnp_dbg("Encode mem24"); | |
797 | pnpacpi_encode_mem24(resource, | |
798 | &res_table->mem_resource[mem]); | |
799 | mem ++; | |
800 | break; | |
801 | case ACPI_RSTYPE_MEM32: | |
802 | pnp_dbg("Encode mem32"); | |
803 | pnpacpi_encode_mem32(resource, | |
804 | &res_table->mem_resource[mem]); | |
805 | mem ++; | |
806 | break; | |
807 | case ACPI_RSTYPE_FIXED_MEM32: | |
808 | pnp_dbg("Encode fixed mem32"); | |
809 | pnpacpi_encode_fixed_mem32(resource, | |
810 | &res_table->mem_resource[mem]); | |
811 | mem ++; | |
812 | break; | |
813 | default: /* other type */ | |
814 | pnp_warn("unknown resource type %d", resource->id); | |
815 | return -EINVAL; | |
816 | } | |
817 | resource ++; | |
818 | i ++; | |
819 | } | |
820 | return 0; | |
821 | } |