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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 | |
dbed12da BH |
76 | pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, u32 gsi, |
77 | int edge_level, int active_high_low) | |
1da177e4 LT |
78 | { |
79 | int i = 0; | |
dbed12da BH |
80 | int irq; |
81 | ||
82 | if (!valid_IRQ(gsi)) | |
83 | return; | |
84 | ||
1da177e4 LT |
85 | while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) && |
86 | i < PNP_MAX_IRQ) | |
87 | i++; | |
dbed12da BH |
88 | if (i >= PNP_MAX_IRQ) |
89 | return; | |
90 | ||
91 | res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag | |
92 | irq = acpi_register_gsi(gsi, edge_level, active_high_low); | |
93 | if (irq < 0) { | |
94 | res->irq_resource[i].flags |= IORESOURCE_DISABLED; | |
95 | return; | |
1da177e4 | 96 | } |
dbed12da BH |
97 | |
98 | res->irq_resource[i].start = irq; | |
99 | res->irq_resource[i].end = irq; | |
100 | pcibios_penalize_isa_irq(irq, 1); | |
1da177e4 LT |
101 | } |
102 | ||
103 | static void | |
dbed12da | 104 | pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, u32 dma) |
1da177e4 LT |
105 | { |
106 | int i = 0; | |
0dec63ba AB |
107 | while (i < PNP_MAX_DMA && |
108 | !(res->dma_resource[i].flags & IORESOURCE_UNSET)) | |
1da177e4 LT |
109 | i++; |
110 | if (i < PNP_MAX_DMA) { | |
111 | res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag | |
112 | if (dma == -1) { | |
113 | res->dma_resource[i].flags |= IORESOURCE_DISABLED; | |
114 | return; | |
115 | } | |
dbed12da BH |
116 | res->dma_resource[i].start = dma; |
117 | res->dma_resource[i].end = dma; | |
1da177e4 LT |
118 | } |
119 | } | |
120 | ||
121 | static void | |
122 | pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res, | |
dbed12da | 123 | u32 io, u32 len) |
1da177e4 LT |
124 | { |
125 | int i = 0; | |
126 | while (!(res->port_resource[i].flags & IORESOURCE_UNSET) && | |
127 | i < PNP_MAX_PORT) | |
128 | i++; | |
129 | if (i < PNP_MAX_PORT) { | |
130 | res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag | |
131 | if (len <= 0 || (io + len -1) >= 0x10003) { | |
132 | res->port_resource[i].flags |= IORESOURCE_DISABLED; | |
133 | return; | |
134 | } | |
dbed12da BH |
135 | res->port_resource[i].start = io; |
136 | res->port_resource[i].end = io + len - 1; | |
1da177e4 LT |
137 | } |
138 | } | |
139 | ||
140 | static void | |
141 | pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res, | |
dbed12da | 142 | u64 mem, u64 len) |
1da177e4 LT |
143 | { |
144 | int i = 0; | |
145 | while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) && | |
146 | (i < PNP_MAX_MEM)) | |
147 | i++; | |
148 | if (i < PNP_MAX_MEM) { | |
149 | res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag | |
150 | if (len <= 0) { | |
151 | res->mem_resource[i].flags |= IORESOURCE_DISABLED; | |
152 | return; | |
153 | } | |
dbed12da BH |
154 | res->mem_resource[i].start = mem; |
155 | res->mem_resource[i].end = mem + len - 1; | |
1da177e4 LT |
156 | } |
157 | } | |
158 | ||
159 | ||
160 | static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, | |
161 | void *data) | |
162 | { | |
163 | struct pnp_resource_table * res_table = (struct pnp_resource_table *)data; | |
dbed12da | 164 | int i; |
1da177e4 LT |
165 | |
166 | switch (res->id) { | |
167 | case ACPI_RSTYPE_IRQ: | |
dbed12da BH |
168 | /* |
169 | * Per spec, only one interrupt per descriptor is allowed in | |
170 | * _CRS, but some firmware violates this, so parse them all. | |
171 | */ | |
172 | for (i = 0; i < res->data.irq.number_of_interrupts; i++) { | |
173 | pnpacpi_parse_allocated_irqresource(res_table, | |
174 | res->data.irq.interrupts[i], | |
175 | res->data.irq.edge_level, | |
176 | res->data.irq.active_high_low); | |
1da177e4 LT |
177 | } |
178 | break; | |
179 | ||
180 | case ACPI_RSTYPE_EXT_IRQ: | |
dbed12da BH |
181 | for (i = 0; i < res->data.extended_irq.number_of_interrupts; i++) { |
182 | pnpacpi_parse_allocated_irqresource(res_table, | |
183 | res->data.extended_irq.interrupts[i], | |
184 | res->data.extended_irq.edge_level, | |
185 | res->data.extended_irq.active_high_low); | |
1da177e4 LT |
186 | } |
187 | break; | |
188 | case ACPI_RSTYPE_DMA: | |
189 | if (res->data.dma.number_of_channels > 0) | |
190 | pnpacpi_parse_allocated_dmaresource(res_table, | |
191 | res->data.dma.channels[0]); | |
192 | break; | |
193 | case ACPI_RSTYPE_IO: | |
194 | pnpacpi_parse_allocated_ioresource(res_table, | |
195 | res->data.io.min_base_address, | |
196 | res->data.io.range_length); | |
197 | break; | |
198 | case ACPI_RSTYPE_FIXED_IO: | |
199 | pnpacpi_parse_allocated_ioresource(res_table, | |
200 | res->data.fixed_io.base_address, | |
201 | res->data.fixed_io.range_length); | |
202 | break; | |
203 | case ACPI_RSTYPE_MEM24: | |
204 | pnpacpi_parse_allocated_memresource(res_table, | |
205 | res->data.memory24.min_base_address, | |
206 | res->data.memory24.range_length); | |
207 | break; | |
208 | case ACPI_RSTYPE_MEM32: | |
209 | pnpacpi_parse_allocated_memresource(res_table, | |
210 | res->data.memory32.min_base_address, | |
211 | res->data.memory32.range_length); | |
212 | break; | |
213 | case ACPI_RSTYPE_FIXED_MEM32: | |
214 | pnpacpi_parse_allocated_memresource(res_table, | |
215 | res->data.fixed_memory32.range_base_address, | |
216 | res->data.fixed_memory32.range_length); | |
217 | break; | |
218 | case ACPI_RSTYPE_ADDRESS16: | |
219 | pnpacpi_parse_allocated_memresource(res_table, | |
220 | res->data.address16.min_address_range, | |
221 | res->data.address16.address_length); | |
222 | break; | |
223 | case ACPI_RSTYPE_ADDRESS32: | |
224 | pnpacpi_parse_allocated_memresource(res_table, | |
225 | res->data.address32.min_address_range, | |
226 | res->data.address32.address_length); | |
227 | break; | |
228 | case ACPI_RSTYPE_ADDRESS64: | |
229 | pnpacpi_parse_allocated_memresource(res_table, | |
230 | res->data.address64.min_address_range, | |
231 | res->data.address64.address_length); | |
232 | break; | |
233 | case ACPI_RSTYPE_VENDOR: | |
234 | break; | |
235 | default: | |
236 | pnp_warn("PnPACPI: unknown resource type %d", res->id); | |
237 | return AE_ERROR; | |
238 | } | |
239 | ||
240 | return AE_OK; | |
241 | } | |
242 | ||
243 | acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle, struct pnp_resource_table * res) | |
244 | { | |
245 | /* Blank the resource table values */ | |
246 | pnp_init_resource_table(res); | |
247 | ||
248 | return acpi_walk_resources(handle, METHOD_NAME__CRS, pnpacpi_allocated_resource, res); | |
249 | } | |
250 | ||
251 | static void pnpacpi_parse_dma_option(struct pnp_option *option, struct acpi_resource_dma *p) | |
252 | { | |
253 | int i; | |
254 | struct pnp_dma * dma; | |
255 | ||
256 | if (p->number_of_channels == 0) | |
257 | return; | |
a2822e7f | 258 | dma = kcalloc(1, sizeof(struct pnp_dma), GFP_KERNEL); |
1da177e4 LT |
259 | if (!dma) |
260 | return; | |
261 | ||
262 | for(i = 0; i < p->number_of_channels; i++) | |
263 | dma->map |= 1 << p->channels[i]; | |
264 | dma->flags = 0; | |
265 | if (p->bus_master) | |
266 | dma->flags |= IORESOURCE_DMA_MASTER; | |
267 | switch (p->type) { | |
268 | case ACPI_COMPATIBILITY: | |
269 | dma->flags |= IORESOURCE_DMA_COMPATIBLE; | |
270 | break; | |
271 | case ACPI_TYPE_A: | |
272 | dma->flags |= IORESOURCE_DMA_TYPEA; | |
273 | break; | |
274 | case ACPI_TYPE_B: | |
275 | dma->flags |= IORESOURCE_DMA_TYPEB; | |
276 | break; | |
277 | case ACPI_TYPE_F: | |
278 | dma->flags |= IORESOURCE_DMA_TYPEF; | |
279 | break; | |
280 | default: | |
281 | /* Set a default value ? */ | |
282 | dma->flags |= IORESOURCE_DMA_COMPATIBLE; | |
283 | pnp_err("Invalid DMA type"); | |
284 | } | |
285 | switch (p->transfer) { | |
286 | case ACPI_TRANSFER_8: | |
287 | dma->flags |= IORESOURCE_DMA_8BIT; | |
288 | break; | |
289 | case ACPI_TRANSFER_8_16: | |
290 | dma->flags |= IORESOURCE_DMA_8AND16BIT; | |
291 | break; | |
292 | case ACPI_TRANSFER_16: | |
293 | dma->flags |= IORESOURCE_DMA_16BIT; | |
294 | break; | |
295 | default: | |
296 | /* Set a default value ? */ | |
297 | dma->flags |= IORESOURCE_DMA_8AND16BIT; | |
298 | pnp_err("Invalid DMA transfer type"); | |
299 | } | |
300 | ||
301 | pnp_register_dma_resource(option,dma); | |
302 | return; | |
303 | } | |
304 | ||
305 | ||
306 | static void pnpacpi_parse_irq_option(struct pnp_option *option, | |
307 | struct acpi_resource_irq *p) | |
308 | { | |
309 | int i; | |
310 | struct pnp_irq * irq; | |
311 | ||
312 | if (p->number_of_interrupts == 0) | |
313 | return; | |
a2822e7f | 314 | irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL); |
1da177e4 LT |
315 | if (!irq) |
316 | return; | |
317 | ||
318 | for(i = 0; i < p->number_of_interrupts; i++) | |
319 | if (p->interrupts[i]) | |
320 | __set_bit(p->interrupts[i], irq->map); | |
321 | irq->flags = irq_flags(p->edge_level, p->active_high_low); | |
322 | ||
323 | pnp_register_irq_resource(option, irq); | |
324 | return; | |
325 | } | |
326 | ||
327 | static void pnpacpi_parse_ext_irq_option(struct pnp_option *option, | |
328 | struct acpi_resource_ext_irq *p) | |
329 | { | |
330 | int i; | |
331 | struct pnp_irq * irq; | |
332 | ||
333 | if (p->number_of_interrupts == 0) | |
334 | return; | |
a2822e7f | 335 | irq = kcalloc(1, sizeof(struct pnp_irq), GFP_KERNEL); |
1da177e4 LT |
336 | if (!irq) |
337 | return; | |
338 | ||
339 | for(i = 0; i < p->number_of_interrupts; i++) | |
340 | if (p->interrupts[i]) | |
341 | __set_bit(p->interrupts[i], irq->map); | |
342 | irq->flags = irq_flags(p->edge_level, p->active_high_low); | |
343 | ||
344 | pnp_register_irq_resource(option, irq); | |
345 | return; | |
346 | } | |
347 | ||
348 | static void | |
349 | pnpacpi_parse_port_option(struct pnp_option *option, | |
350 | struct acpi_resource_io *io) | |
351 | { | |
352 | struct pnp_port * port; | |
353 | ||
354 | if (io->range_length == 0) | |
355 | return; | |
a2822e7f | 356 | port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL); |
1da177e4 LT |
357 | if (!port) |
358 | return; | |
359 | port->min = io->min_base_address; | |
360 | port->max = io->max_base_address; | |
361 | port->align = io->alignment; | |
362 | port->size = io->range_length; | |
363 | port->flags = ACPI_DECODE_16 == io->io_decode ? | |
364 | PNP_PORT_FLAG_16BITADDR : 0; | |
365 | pnp_register_port_resource(option,port); | |
366 | return; | |
367 | } | |
368 | ||
369 | static void | |
370 | pnpacpi_parse_fixed_port_option(struct pnp_option *option, | |
371 | struct acpi_resource_fixed_io *io) | |
372 | { | |
373 | struct pnp_port * port; | |
374 | ||
375 | if (io->range_length == 0) | |
376 | return; | |
a2822e7f | 377 | port = kcalloc(1, sizeof(struct pnp_port), GFP_KERNEL); |
1da177e4 LT |
378 | if (!port) |
379 | return; | |
380 | port->min = port->max = io->base_address; | |
381 | port->size = io->range_length; | |
382 | port->align = 0; | |
383 | port->flags = PNP_PORT_FLAG_FIXED; | |
384 | pnp_register_port_resource(option,port); | |
385 | return; | |
386 | } | |
387 | ||
388 | static void | |
389 | pnpacpi_parse_mem24_option(struct pnp_option *option, | |
390 | struct acpi_resource_mem24 *p) | |
391 | { | |
392 | struct pnp_mem * mem; | |
393 | ||
394 | if (p->range_length == 0) | |
395 | return; | |
a2822e7f | 396 | mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); |
1da177e4 LT |
397 | if (!mem) |
398 | return; | |
399 | mem->min = p->min_base_address; | |
400 | mem->max = p->max_base_address; | |
401 | mem->align = p->alignment; | |
402 | mem->size = p->range_length; | |
403 | ||
404 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
405 | IORESOURCE_MEM_WRITEABLE : 0; | |
406 | ||
407 | pnp_register_mem_resource(option,mem); | |
408 | return; | |
409 | } | |
410 | ||
411 | static void | |
412 | pnpacpi_parse_mem32_option(struct pnp_option *option, | |
413 | struct acpi_resource_mem32 *p) | |
414 | { | |
415 | struct pnp_mem * mem; | |
416 | ||
417 | if (p->range_length == 0) | |
418 | return; | |
a2822e7f | 419 | mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); |
1da177e4 LT |
420 | if (!mem) |
421 | return; | |
422 | mem->min = p->min_base_address; | |
423 | mem->max = p->max_base_address; | |
424 | mem->align = p->alignment; | |
425 | mem->size = p->range_length; | |
426 | ||
427 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
428 | IORESOURCE_MEM_WRITEABLE : 0; | |
429 | ||
430 | pnp_register_mem_resource(option,mem); | |
431 | return; | |
432 | } | |
433 | ||
434 | static void | |
435 | pnpacpi_parse_fixed_mem32_option(struct pnp_option *option, | |
436 | struct acpi_resource_fixed_mem32 *p) | |
437 | { | |
438 | struct pnp_mem * mem; | |
439 | ||
440 | if (p->range_length == 0) | |
441 | return; | |
a2822e7f | 442 | mem = kcalloc(1, sizeof(struct pnp_mem), GFP_KERNEL); |
1da177e4 LT |
443 | if (!mem) |
444 | return; | |
445 | mem->min = mem->max = p->range_base_address; | |
446 | mem->size = p->range_length; | |
447 | mem->align = 0; | |
448 | ||
449 | mem->flags = (ACPI_READ_WRITE_MEMORY == p->read_write_attribute) ? | |
450 | IORESOURCE_MEM_WRITEABLE : 0; | |
451 | ||
452 | pnp_register_mem_resource(option,mem); | |
453 | return; | |
454 | } | |
455 | ||
456 | struct acpipnp_parse_option_s { | |
457 | struct pnp_option *option; | |
b008b8d7 | 458 | struct pnp_option *option_independent; |
1da177e4 LT |
459 | struct pnp_dev *dev; |
460 | }; | |
461 | ||
462 | static acpi_status pnpacpi_option_resource(struct acpi_resource *res, | |
463 | void *data) | |
464 | { | |
465 | int priority = 0; | |
466 | struct acpipnp_parse_option_s *parse_data = (struct acpipnp_parse_option_s *)data; | |
467 | struct pnp_dev *dev = parse_data->dev; | |
468 | struct pnp_option *option = parse_data->option; | |
469 | ||
470 | switch (res->id) { | |
471 | case ACPI_RSTYPE_IRQ: | |
472 | pnpacpi_parse_irq_option(option, &res->data.irq); | |
473 | break; | |
474 | case ACPI_RSTYPE_EXT_IRQ: | |
475 | pnpacpi_parse_ext_irq_option(option, | |
476 | &res->data.extended_irq); | |
477 | break; | |
478 | case ACPI_RSTYPE_DMA: | |
479 | pnpacpi_parse_dma_option(option, &res->data.dma); | |
480 | break; | |
481 | case ACPI_RSTYPE_IO: | |
482 | pnpacpi_parse_port_option(option, &res->data.io); | |
483 | break; | |
484 | case ACPI_RSTYPE_FIXED_IO: | |
485 | pnpacpi_parse_fixed_port_option(option, | |
486 | &res->data.fixed_io); | |
487 | break; | |
488 | case ACPI_RSTYPE_MEM24: | |
489 | pnpacpi_parse_mem24_option(option, &res->data.memory24); | |
490 | break; | |
491 | case ACPI_RSTYPE_MEM32: | |
492 | pnpacpi_parse_mem32_option(option, &res->data.memory32); | |
493 | break; | |
494 | case ACPI_RSTYPE_FIXED_MEM32: | |
495 | pnpacpi_parse_fixed_mem32_option(option, | |
496 | &res->data.fixed_memory32); | |
497 | break; | |
498 | case ACPI_RSTYPE_START_DPF: | |
499 | switch (res->data.start_dpf.compatibility_priority) { | |
500 | case ACPI_GOOD_CONFIGURATION: | |
501 | priority = PNP_RES_PRIORITY_PREFERRED; | |
502 | break; | |
503 | ||
504 | case ACPI_ACCEPTABLE_CONFIGURATION: | |
505 | priority = PNP_RES_PRIORITY_ACCEPTABLE; | |
506 | break; | |
507 | ||
508 | case ACPI_SUB_OPTIMAL_CONFIGURATION: | |
509 | priority = PNP_RES_PRIORITY_FUNCTIONAL; | |
510 | break; | |
511 | default: | |
512 | priority = PNP_RES_PRIORITY_INVALID; | |
513 | break; | |
514 | } | |
515 | /* TBD: Considering performace/robustness bits */ | |
516 | option = pnp_register_dependent_option(dev, priority); | |
517 | if (!option) | |
518 | return AE_ERROR; | |
519 | parse_data->option = option; | |
520 | break; | |
521 | case ACPI_RSTYPE_END_DPF: | |
b008b8d7 MC |
522 | /*only one EndDependentFn is allowed*/ |
523 | if (!parse_data->option_independent) { | |
524 | pnp_warn("PnPACPI: more than one EndDependentFn"); | |
525 | return AE_ERROR; | |
526 | } | |
527 | parse_data->option = parse_data->option_independent; | |
528 | parse_data->option_independent = NULL; | |
529 | break; | |
1da177e4 LT |
530 | default: |
531 | pnp_warn("PnPACPI: unknown resource type %d", res->id); | |
532 | return AE_ERROR; | |
533 | } | |
534 | ||
535 | return AE_OK; | |
536 | } | |
537 | ||
538 | acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle, | |
539 | struct pnp_dev *dev) | |
540 | { | |
541 | acpi_status status; | |
542 | struct acpipnp_parse_option_s parse_data; | |
543 | ||
544 | parse_data.option = pnp_register_independent_option(dev); | |
545 | if (!parse_data.option) | |
546 | return AE_ERROR; | |
b008b8d7 | 547 | parse_data.option_independent = parse_data.option; |
1da177e4 LT |
548 | parse_data.dev = dev; |
549 | status = acpi_walk_resources(handle, METHOD_NAME__PRS, | |
550 | pnpacpi_option_resource, &parse_data); | |
551 | ||
552 | return status; | |
553 | } | |
554 | ||
555 | /* | |
556 | * Set resource | |
557 | */ | |
558 | static acpi_status pnpacpi_count_resources(struct acpi_resource *res, | |
559 | void *data) | |
560 | { | |
561 | int *res_cnt = (int *)data; | |
562 | switch (res->id) { | |
563 | case ACPI_RSTYPE_IRQ: | |
564 | case ACPI_RSTYPE_EXT_IRQ: | |
565 | case ACPI_RSTYPE_DMA: | |
566 | case ACPI_RSTYPE_IO: | |
567 | case ACPI_RSTYPE_FIXED_IO: | |
568 | case ACPI_RSTYPE_MEM24: | |
569 | case ACPI_RSTYPE_MEM32: | |
570 | case ACPI_RSTYPE_FIXED_MEM32: | |
571 | #if 0 | |
572 | case ACPI_RSTYPE_ADDRESS16: | |
573 | case ACPI_RSTYPE_ADDRESS32: | |
574 | case ACPI_RSTYPE_ADDRESS64: | |
575 | #endif | |
576 | (*res_cnt) ++; | |
577 | default: | |
578 | return AE_OK; | |
579 | } | |
580 | return AE_OK; | |
581 | } | |
582 | ||
583 | static acpi_status pnpacpi_type_resources(struct acpi_resource *res, | |
584 | void *data) | |
585 | { | |
586 | struct acpi_resource **resource = (struct acpi_resource **)data; | |
587 | switch (res->id) { | |
588 | case ACPI_RSTYPE_IRQ: | |
589 | case ACPI_RSTYPE_EXT_IRQ: | |
590 | case ACPI_RSTYPE_DMA: | |
591 | case ACPI_RSTYPE_IO: | |
592 | case ACPI_RSTYPE_FIXED_IO: | |
593 | case ACPI_RSTYPE_MEM24: | |
594 | case ACPI_RSTYPE_MEM32: | |
595 | case ACPI_RSTYPE_FIXED_MEM32: | |
596 | #if 0 | |
597 | case ACPI_RSTYPE_ADDRESS16: | |
598 | case ACPI_RSTYPE_ADDRESS32: | |
599 | case ACPI_RSTYPE_ADDRESS64: | |
600 | #endif | |
601 | (*resource)->id = res->id; | |
602 | (*resource)++; | |
603 | default: | |
604 | return AE_OK; | |
605 | } | |
606 | ||
607 | return AE_OK; | |
608 | } | |
609 | ||
610 | int pnpacpi_build_resource_template(acpi_handle handle, | |
611 | struct acpi_buffer *buffer) | |
612 | { | |
613 | struct acpi_resource *resource; | |
614 | int res_cnt = 0; | |
615 | acpi_status status; | |
616 | ||
617 | status = acpi_walk_resources(handle, METHOD_NAME__CRS, | |
618 | pnpacpi_count_resources, &res_cnt); | |
619 | if (ACPI_FAILURE(status)) { | |
620 | pnp_err("Evaluate _CRS failed"); | |
621 | return -EINVAL; | |
622 | } | |
623 | if (!res_cnt) | |
624 | return -EINVAL; | |
625 | buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1; | |
a2822e7f | 626 | buffer->pointer = kcalloc(1, buffer->length - 1, GFP_KERNEL); |
1da177e4 LT |
627 | if (!buffer->pointer) |
628 | return -ENOMEM; | |
629 | pnp_dbg("Res cnt %d", res_cnt); | |
630 | resource = (struct acpi_resource *)buffer->pointer; | |
631 | status = acpi_walk_resources(handle, METHOD_NAME__CRS, | |
632 | pnpacpi_type_resources, &resource); | |
633 | if (ACPI_FAILURE(status)) { | |
634 | kfree(buffer->pointer); | |
635 | pnp_err("Evaluate _CRS failed"); | |
636 | return -EINVAL; | |
637 | } | |
638 | /* resource will pointer the end resource now */ | |
639 | resource->id = ACPI_RSTYPE_END_TAG; | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
644 | static void pnpacpi_encode_irq(struct acpi_resource *resource, | |
645 | struct resource *p) | |
646 | { | |
647 | int edge_level, active_high_low; | |
648 | ||
649 | decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, | |
650 | &active_high_low); | |
651 | resource->id = ACPI_RSTYPE_IRQ; | |
652 | resource->length = sizeof(struct acpi_resource); | |
653 | resource->data.irq.edge_level = edge_level; | |
654 | resource->data.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.irq.number_of_interrupts = 1; | |
660 | resource->data.irq.interrupts[0] = p->start; | |
661 | } | |
662 | ||
663 | static void pnpacpi_encode_ext_irq(struct acpi_resource *resource, | |
664 | struct resource *p) | |
665 | { | |
666 | int edge_level, active_high_low; | |
667 | ||
668 | decode_irq_flags(p->flags & IORESOURCE_BITS, &edge_level, | |
669 | &active_high_low); | |
670 | resource->id = ACPI_RSTYPE_EXT_IRQ; | |
671 | resource->length = sizeof(struct acpi_resource); | |
672 | resource->data.extended_irq.producer_consumer = ACPI_CONSUMER; | |
673 | resource->data.extended_irq.edge_level = edge_level; | |
674 | resource->data.extended_irq.active_high_low = active_high_low; | |
675 | if (edge_level == ACPI_EDGE_SENSITIVE) | |
676 | resource->data.irq.shared_exclusive = ACPI_EXCLUSIVE; | |
677 | else | |
678 | resource->data.irq.shared_exclusive = ACPI_SHARED; | |
679 | resource->data.extended_irq.number_of_interrupts = 1; | |
680 | resource->data.extended_irq.interrupts[0] = p->start; | |
681 | } | |
682 | ||
683 | static void pnpacpi_encode_dma(struct acpi_resource *resource, | |
684 | struct resource *p) | |
685 | { | |
686 | resource->id = ACPI_RSTYPE_DMA; | |
687 | resource->length = sizeof(struct acpi_resource); | |
688 | /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */ | |
689 | if (p->flags & IORESOURCE_DMA_COMPATIBLE) | |
690 | resource->data.dma.type = ACPI_COMPATIBILITY; | |
691 | else if (p->flags & IORESOURCE_DMA_TYPEA) | |
692 | resource->data.dma.type = ACPI_TYPE_A; | |
693 | else if (p->flags & IORESOURCE_DMA_TYPEB) | |
694 | resource->data.dma.type = ACPI_TYPE_B; | |
695 | else if (p->flags & IORESOURCE_DMA_TYPEF) | |
696 | resource->data.dma.type = ACPI_TYPE_F; | |
697 | if (p->flags & IORESOURCE_DMA_8BIT) | |
698 | resource->data.dma.transfer = ACPI_TRANSFER_8; | |
699 | else if (p->flags & IORESOURCE_DMA_8AND16BIT) | |
700 | resource->data.dma.transfer = ACPI_TRANSFER_8_16; | |
701 | else if (p->flags & IORESOURCE_DMA_16BIT) | |
702 | resource->data.dma.transfer = ACPI_TRANSFER_16; | |
703 | resource->data.dma.bus_master = p->flags & IORESOURCE_DMA_MASTER; | |
704 | resource->data.dma.number_of_channels = 1; | |
705 | resource->data.dma.channels[0] = p->start; | |
706 | } | |
707 | ||
708 | static void pnpacpi_encode_io(struct acpi_resource *resource, | |
709 | struct resource *p) | |
710 | { | |
711 | resource->id = ACPI_RSTYPE_IO; | |
712 | resource->length = sizeof(struct acpi_resource); | |
713 | /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */ | |
714 | resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR)? | |
715 | ACPI_DECODE_16 : ACPI_DECODE_10; | |
716 | resource->data.io.min_base_address = p->start; | |
717 | resource->data.io.max_base_address = p->end; | |
718 | resource->data.io.alignment = 0; /* Correct? */ | |
719 | resource->data.io.range_length = p->end - p->start + 1; | |
720 | } | |
721 | ||
722 | static void pnpacpi_encode_fixed_io(struct acpi_resource *resource, | |
723 | struct resource *p) | |
724 | { | |
725 | resource->id = ACPI_RSTYPE_FIXED_IO; | |
726 | resource->length = sizeof(struct acpi_resource); | |
727 | resource->data.fixed_io.base_address = p->start; | |
728 | resource->data.fixed_io.range_length = p->end - p->start + 1; | |
729 | } | |
730 | ||
731 | static void pnpacpi_encode_mem24(struct acpi_resource *resource, | |
732 | struct resource *p) | |
733 | { | |
734 | resource->id = ACPI_RSTYPE_MEM24; | |
735 | resource->length = sizeof(struct acpi_resource); | |
736 | /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */ | |
737 | resource->data.memory24.read_write_attribute = | |
738 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
739 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
740 | resource->data.memory24.min_base_address = p->start; | |
741 | resource->data.memory24.max_base_address = p->end; | |
742 | resource->data.memory24.alignment = 0; | |
743 | resource->data.memory24.range_length = p->end - p->start + 1; | |
744 | } | |
745 | ||
746 | static void pnpacpi_encode_mem32(struct acpi_resource *resource, | |
747 | struct resource *p) | |
748 | { | |
749 | resource->id = ACPI_RSTYPE_MEM32; | |
750 | resource->length = sizeof(struct acpi_resource); | |
751 | resource->data.memory32.read_write_attribute = | |
752 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
753 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
754 | resource->data.memory32.min_base_address = p->start; | |
755 | resource->data.memory32.max_base_address = p->end; | |
756 | resource->data.memory32.alignment = 0; | |
757 | resource->data.memory32.range_length = p->end - p->start + 1; | |
758 | } | |
759 | ||
760 | static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource, | |
761 | struct resource *p) | |
762 | { | |
763 | resource->id = ACPI_RSTYPE_FIXED_MEM32; | |
764 | resource->length = sizeof(struct acpi_resource); | |
765 | resource->data.fixed_memory32.read_write_attribute = | |
766 | (p->flags & IORESOURCE_MEM_WRITEABLE) ? | |
767 | ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY; | |
768 | resource->data.fixed_memory32.range_base_address = p->start; | |
769 | resource->data.fixed_memory32.range_length = p->end - p->start + 1; | |
770 | } | |
771 | ||
772 | int pnpacpi_encode_resources(struct pnp_resource_table *res_table, | |
773 | struct acpi_buffer *buffer) | |
774 | { | |
775 | int i = 0; | |
776 | /* pnpacpi_build_resource_template allocates extra mem */ | |
777 | int res_cnt = (buffer->length - 1)/sizeof(struct acpi_resource) - 1; | |
778 | struct acpi_resource *resource = (struct acpi_resource*)buffer->pointer; | |
779 | int port = 0, irq = 0, dma = 0, mem = 0; | |
780 | ||
781 | pnp_dbg("res cnt %d", res_cnt); | |
782 | while (i < res_cnt) { | |
783 | switch(resource->id) { | |
784 | case ACPI_RSTYPE_IRQ: | |
785 | pnp_dbg("Encode irq"); | |
786 | pnpacpi_encode_irq(resource, | |
787 | &res_table->irq_resource[irq]); | |
788 | irq++; | |
789 | break; | |
790 | ||
791 | case ACPI_RSTYPE_EXT_IRQ: | |
792 | pnp_dbg("Encode ext irq"); | |
793 | pnpacpi_encode_ext_irq(resource, | |
794 | &res_table->irq_resource[irq]); | |
795 | irq++; | |
796 | break; | |
797 | case ACPI_RSTYPE_DMA: | |
798 | pnp_dbg("Encode dma"); | |
799 | pnpacpi_encode_dma(resource, | |
800 | &res_table->dma_resource[dma]); | |
801 | dma ++; | |
802 | break; | |
803 | case ACPI_RSTYPE_IO: | |
804 | pnp_dbg("Encode io"); | |
805 | pnpacpi_encode_io(resource, | |
806 | &res_table->port_resource[port]); | |
807 | port ++; | |
808 | break; | |
809 | case ACPI_RSTYPE_FIXED_IO: | |
810 | pnp_dbg("Encode fixed io"); | |
811 | pnpacpi_encode_fixed_io(resource, | |
812 | &res_table->port_resource[port]); | |
813 | port ++; | |
814 | break; | |
815 | case ACPI_RSTYPE_MEM24: | |
816 | pnp_dbg("Encode mem24"); | |
817 | pnpacpi_encode_mem24(resource, | |
818 | &res_table->mem_resource[mem]); | |
819 | mem ++; | |
820 | break; | |
821 | case ACPI_RSTYPE_MEM32: | |
822 | pnp_dbg("Encode mem32"); | |
823 | pnpacpi_encode_mem32(resource, | |
824 | &res_table->mem_resource[mem]); | |
825 | mem ++; | |
826 | break; | |
827 | case ACPI_RSTYPE_FIXED_MEM32: | |
828 | pnp_dbg("Encode fixed mem32"); | |
829 | pnpacpi_encode_fixed_mem32(resource, | |
830 | &res_table->mem_resource[mem]); | |
831 | mem ++; | |
832 | break; | |
833 | default: /* other type */ | |
834 | pnp_warn("unknown resource type %d", resource->id); | |
835 | return -EINVAL; | |
836 | } | |
837 | resource ++; | |
838 | i ++; | |
839 | } | |
840 | return 0; | |
841 | } |