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PNP: Lindent all source files
[linux-2.6-block.git] / drivers / pnp / pnpacpi / rsparser.c
CommitLineData
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>
50eca3eb 6 *
1da177e4
LT		 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 */
50eca3eb 35static int irq_flags(int triggering, int polarity)
1da177e4
LT		 36{
37 int flag;
50eca3eb 38 if (triggering == ACPI_LEVEL_SENSITIVE) {
1c6e7d0a 39 if (polarity == ACPI_ACTIVE_LOW)
1da177e4
LT		 40 flag = IORESOURCE_IRQ_LOWLEVEL;
41 else
42 flag = IORESOURCE_IRQ_HIGHLEVEL;
9dd78466 43 } else {
1c6e7d0a 44 if (polarity == ACPI_ACTIVE_LOW)
1da177e4
LT		 45 flag = IORESOURCE_IRQ_LOWEDGE;
46 else
47 flag = IORESOURCE_IRQ_HIGHEDGE;
48 }
49 return flag;
50}
51
50eca3eb 52static void decode_irq_flags(int flag, int *triggering, int *polarity)
1da177e4
LT		 53{
54 switch (flag) {
55 case IORESOURCE_IRQ_LOWLEVEL:
50eca3eb
BM		 56 *triggering = ACPI_LEVEL_SENSITIVE;
57 *polarity = ACPI_ACTIVE_LOW;
1da177e4 58 break;
1c6e7d0a 59 case IORESOURCE_IRQ_HIGHLEVEL:
50eca3eb
BM		 60 *triggering = ACPI_LEVEL_SENSITIVE;
61 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 62 break;
63 case IORESOURCE_IRQ_LOWEDGE:
50eca3eb
BM		 64 *triggering = ACPI_EDGE_SENSITIVE;
65 *polarity = ACPI_ACTIVE_LOW;
1da177e4
LT		 66 break;
67 case IORESOURCE_IRQ_HIGHEDGE:
50eca3eb
BM		 68 *triggering = ACPI_EDGE_SENSITIVE;
69 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 70 break;
71 }
72}
73
74static void
1c6e7d0a 75pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, u32 gsi,
9dd78466 76 int triggering, int polarity, int shareable)
1da177e4
LT		 77{
78 int i = 0;
dbed12da
BH		 79 int irq;
80
81 if (!valid_IRQ(gsi))
82 return;
83
1da177e4 84 while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 85 i < PNP_MAX_IRQ)
1da177e4 86 i++;
dbed12da
BH		 87 if (i >= PNP_MAX_IRQ)
88 return;
89
9dd78466 90 res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
362ea087 91 res->irq_resource[i].flags |= irq_flags(triggering, polarity);
50eca3eb 92 irq = acpi_register_gsi(gsi, triggering, polarity);
dbed12da
BH		 93 if (irq < 0) {
94 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
95 return;
1da177e4 96 }
dbed12da 97
c32928c5
BH		 98 if (shareable)
99 res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
100
dbed12da
BH		 101 res->irq_resource[i].start = irq;
102 res->irq_resource[i].end = irq;
103 pcibios_penalize_isa_irq(irq, 1);
1da177e4
LT		 104}
105
362ea087
MK		 106static int dma_flags(int type, int bus_master, int transfer)
107{
108 int flags = 0;
109
110 if (bus_master)
111 flags |= IORESOURCE_DMA_MASTER;
112 switch (type) {
113 case ACPI_COMPATIBILITY:
114 flags |= IORESOURCE_DMA_COMPATIBLE;
115 break;
116 case ACPI_TYPE_A:
117 flags |= IORESOURCE_DMA_TYPEA;
118 break;
119 case ACPI_TYPE_B:
120 flags |= IORESOURCE_DMA_TYPEB;
121 break;
122 case ACPI_TYPE_F:
123 flags |= IORESOURCE_DMA_TYPEF;
124 break;
125 default:
126 /* Set a default value ? */
127 flags |= IORESOURCE_DMA_COMPATIBLE;
128 pnp_err("Invalid DMA type");
129 }
130 switch (transfer) {
131 case ACPI_TRANSFER_8:
132 flags |= IORESOURCE_DMA_8BIT;
133 break;
134 case ACPI_TRANSFER_8_16:
135 flags |= IORESOURCE_DMA_8AND16BIT;
136 break;
137 case ACPI_TRANSFER_16:
138 flags |= IORESOURCE_DMA_16BIT;
139 break;
140 default:
141 /* Set a default value ? */
142 flags |= IORESOURCE_DMA_8AND16BIT;
143 pnp_err("Invalid DMA transfer type");
144 }
145
146 return flags;
147}
148
1da177e4 149static void
362ea087 150pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res, u32 dma,
9dd78466 151 int type, int bus_master, int transfer)
1da177e4
LT		 152{
153 int i = 0;
0dec63ba 154 while (i < PNP_MAX_DMA &&
9dd78466 155 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
1da177e4
LT		 156 i++;
157 if (i < PNP_MAX_DMA) {
9dd78466
BH		 158 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
159 res->dma_resource[i].flags |=
160 dma_flags(type, bus_master, transfer);
1da177e4
LT		 161 if (dma == -1) {
162 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
163 return;
164 }
dbed12da
BH		 165 res->dma_resource[i].start = dma;
166 res->dma_resource[i].end = dma;
1da177e4
LT		 167 }
168}
169
170static void
1c6e7d0a 171pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
9dd78466 172 u64 io, u64 len, int io_decode)
1da177e4
LT		 173{
174 int i = 0;
175 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 176 i < PNP_MAX_PORT)
1da177e4
LT		 177 i++;
178 if (i < PNP_MAX_PORT) {
9dd78466 179 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
362ea087
MK		 180 if (io_decode == ACPI_DECODE_16)
181 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
9dd78466 182 if (len <= 0 || (io + len - 1) >= 0x10003) {
1da177e4
LT		 183 res->port_resource[i].flags |= IORESOURCE_DISABLED;
184 return;
185 }
dbed12da
BH		 186 res->port_resource[i].start = io;
187 res->port_resource[i].end = io + len - 1;
1da177e4
LT		 188 }
189}
190
191static void
1c6e7d0a 192pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
9dd78466 193 u64 mem, u64 len, int write_protect)
1da177e4
LT		 194{
195 int i = 0;
196 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 197 (i < PNP_MAX_MEM))
1da177e4
LT		 198 i++;
199 if (i < PNP_MAX_MEM) {
9dd78466 200 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
1da177e4
LT		 201 if (len <= 0) {
202 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
203 return;
204 }
9dd78466 205 if (write_protect == ACPI_READ_WRITE_MEMORY)
362ea087
MK		 206 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
207
dbed12da
BH		 208 res->mem_resource[i].start = mem;
209 res->mem_resource[i].end = mem + len - 1;
1da177e4
LT		 210 }
211}
212
1acfb7f2
BH		 213static void
214pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
9dd78466 215 struct acpi_resource *res)
1acfb7f2
BH		 216{
217 struct acpi_resource_address64 addr, *p = &addr;
218 acpi_status status;
219
220 status = acpi_resource_to_address64(res, p);
221 if (!ACPI_SUCCESS(status)) {
222 pnp_warn("PnPACPI: failed to convert resource type %d",
9dd78466 223 res->type);
1acfb7f2
BH		 224 return;
225 }
226
2b8de5f5 227 if (p->producer_consumer == ACPI_PRODUCER)
228 return;
229
1acfb7f2
BH		 230 if (p->resource_type == ACPI_MEMORY_RANGE)
231 pnpacpi_parse_allocated_memresource(res_table,
9dd78466
BH		 232 p->minimum,
233 p->address_length,
234 p->info.mem.write_protect);
1acfb7f2
BH		 235 else if (p->resource_type == ACPI_IO_RANGE)
236 pnpacpi_parse_allocated_ioresource(res_table,
9dd78466
BH		 237 p->minimum,
238 p->address_length,
239 p->granularity ==
240 0xfff ? ACPI_DECODE_10 :
241 ACPI_DECODE_16);
1acfb7f2 242}
1da177e4
LT		 243
244static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
9dd78466 245 void *data)
1da177e4 246{
9dd78466
BH		 247 struct pnp_resource_table *res_table =
248 (struct pnp_resource_table *)data;
dbed12da 249 int i;
1da177e4 250
eca008c8 251 switch (res->type) {
50eca3eb 252 case ACPI_RESOURCE_TYPE_IRQ:
dbed12da
BH		 253 /*
254 * Per spec, only one interrupt per descriptor is allowed in
255 * _CRS, but some firmware violates this, so parse them all.
256 */
50eca3eb 257 for (i = 0; i < res->data.irq.interrupt_count; i++) {
dbed12da 258 pnpacpi_parse_allocated_irqresource(res_table,
9dd78466
BH		 259 res->data.irq.
260 interrupts[i],
261 res->data.irq.
262 triggering,
263 res->data.irq.
264 polarity,
265 res->data.irq.
266 sharable);
1da177e4
LT		 267 }
268 break;
269
50eca3eb
BM		 270 case ACPI_RESOURCE_TYPE_DMA:
271 if (res->data.dma.channel_count > 0)
272 pnpacpi_parse_allocated_dmaresource(res_table,
9dd78466
BH		 273 res->data.dma.
274 channels[0],
275 res->data.dma.type,
276 res->data.dma.
277 bus_master,
278 res->data.dma.
279 transfer);
1da177e4 280 break;
0af5853b 281
50eca3eb
BM		 282 case ACPI_RESOURCE_TYPE_IO:
283 pnpacpi_parse_allocated_ioresource(res_table,
9dd78466
BH		 284 res->data.io.minimum,
285 res->data.io.address_length,
286 res->data.io.io_decode);
1da177e4 287 break;
0af5853b
LB		 288
289 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
290 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
291 break;
292
50eca3eb
BM		 293 case ACPI_RESOURCE_TYPE_FIXED_IO:
294 pnpacpi_parse_allocated_ioresource(res_table,
9dd78466
BH		 295 res->data.fixed_io.address,
296 res->data.fixed_io.
297 address_length,
298 ACPI_DECODE_10);
1da177e4 299 break;
0af5853b
LB		 300
301 case ACPI_RESOURCE_TYPE_VENDOR:
302 break;
303
304 case ACPI_RESOURCE_TYPE_END_TAG:
305 break;
306
50eca3eb
BM		 307 case ACPI_RESOURCE_TYPE_MEMORY24:
308 pnpacpi_parse_allocated_memresource(res_table,
9dd78466
BH		 309 res->data.memory24.minimum,
310 res->data.memory24.
311 address_length,
312 res->data.memory24.
313 write_protect);
1da177e4 314 break;
50eca3eb
BM		 315 case ACPI_RESOURCE_TYPE_MEMORY32:
316 pnpacpi_parse_allocated_memresource(res_table,
9dd78466
BH		 317 res->data.memory32.minimum,
318 res->data.memory32.
319 address_length,
320 res->data.memory32.
321 write_protect);
1da177e4 322 break;
50eca3eb
BM		 323 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
324 pnpacpi_parse_allocated_memresource(res_table,
9dd78466
BH		 325 res->data.fixed_memory32.
326 address,
327 res->data.fixed_memory32.
328 address_length,
329 res->data.fixed_memory32.
330 write_protect);
1da177e4 331 break;
50eca3eb 332 case ACPI_RESOURCE_TYPE_ADDRESS16:
50eca3eb 333 case ACPI_RESOURCE_TYPE_ADDRESS32:
50eca3eb 334 case ACPI_RESOURCE_TYPE_ADDRESS64:
1acfb7f2 335 pnpacpi_parse_allocated_address_space(res_table, res);
1da177e4 336 break;
0af5853b
LB		 337
338 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
2b8de5f5 339 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
340 return AE_OK;
0af5853b
LB		 341 break;
342
343 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
2b8de5f5 344 if (res->data.extended_irq.producer_consumer == ACPI_PRODUCER)
345 return AE_OK;
346
0af5853b
LB		 347 for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
348 pnpacpi_parse_allocated_irqresource(res_table,
9dd78466
BH		 349 res->data.
350 extended_irq.
351 interrupts[i],
352 res->data.
353 extended_irq.
354 triggering,
355 res->data.
356 extended_irq.
357 polarity,
358 res->data.
359 extended_irq.
360 sharable);
0af5853b
LB		 361 }
362 break;
363
364 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1da177e4 365 break;
0af5853b 366
1da177e4 367 default:
eca008c8 368 pnp_warn("PnPACPI: unknown resource type %d", res->type);
1da177e4
LT		 369 return AE_ERROR;
370 }
1c6e7d0a 371
1da177e4
LT		 372 return AE_OK;
373}
374
9dd78466
BH		 375acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
376 struct pnp_resource_table * res)
1da177e4
LT		 377{
378 /* Blank the resource table values */
379 pnp_init_resource_table(res);
380
9dd78466
BH		 381 return acpi_walk_resources(handle, METHOD_NAME__CRS,
382 pnpacpi_allocated_resource, res);
1da177e4
LT		 383}
384
9dd78466
BH		 385static void pnpacpi_parse_dma_option(struct pnp_option *option,
386 struct acpi_resource_dma *p)
1da177e4
LT		 387{
388 int i;
9dd78466 389 struct pnp_dma *dma;
1da177e4 390
50eca3eb 391 if (p->channel_count == 0)
1da177e4 392 return;
cd861280 393 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
1da177e4
LT		 394 if (!dma)
395 return;
396
9dd78466 397 for (i = 0; i < p->channel_count; i++)
1da177e4 398 dma->map |= 1 << p->channels[i];
362ea087
MK		 399
400 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
1da177e4 401
1c6e7d0a 402 pnp_register_dma_resource(option, dma);
1da177e4
LT		 403 return;
404}
405
1da177e4 406static void pnpacpi_parse_irq_option(struct pnp_option *option,
9dd78466 407 struct acpi_resource_irq *p)
1da177e4
LT		 408{
409 int i;
1c6e7d0a
BH		 410 struct pnp_irq *irq;
411
50eca3eb 412 if (p->interrupt_count == 0)
1da177e4 413 return;
cd861280 414 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 415 if (!irq)
416 return;
417
9dd78466 418 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 419 if (p->interrupts[i])
420 __set_bit(p->interrupts[i], irq->map);
50eca3eb 421 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 422
423 pnp_register_irq_resource(option, irq);
424 return;
425}
426
427static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
9dd78466 428 struct acpi_resource_extended_irq *p)
1da177e4
LT		 429{
430 int i;
1c6e7d0a 431 struct pnp_irq *irq;
1da177e4 432
50eca3eb 433 if (p->interrupt_count == 0)
1da177e4 434 return;
cd861280 435 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 436 if (!irq)
437 return;
438
9dd78466 439 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 440 if (p->interrupts[i])
441 __set_bit(p->interrupts[i], irq->map);
50eca3eb 442 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 443
444 pnp_register_irq_resource(option, irq);
445 return;
446}
447
448static void
449pnpacpi_parse_port_option(struct pnp_option *option,
9dd78466 450 struct acpi_resource_io *io)
1da177e4 451{
1c6e7d0a 452 struct pnp_port *port;
1da177e4 453
50eca3eb 454 if (io->address_length == 0)
1da177e4 455 return;
cd861280 456 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 457 if (!port)
458 return;
50eca3eb
BM		 459 port->min = io->minimum;
460 port->max = io->maximum;
1da177e4 461 port->align = io->alignment;
50eca3eb
BM		 462 port->size = io->address_length;
463 port->flags = ACPI_DECODE_16 == io->io_decode ?
9dd78466 464 PNP_PORT_FLAG_16BITADDR : 0;
1c6e7d0a 465 pnp_register_port_resource(option, port);
1da177e4
LT		 466 return;
467}
468
469static void
470pnpacpi_parse_fixed_port_option(struct pnp_option *option,
9dd78466 471 struct acpi_resource_fixed_io *io)
1da177e4 472{
1c6e7d0a 473 struct pnp_port *port;
1da177e4 474
50eca3eb 475 if (io->address_length == 0)
1da177e4 476 return;
cd861280 477 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 478 if (!port)
479 return;
50eca3eb
BM		 480 port->min = port->max = io->address;
481 port->size = io->address_length;
1da177e4
LT		 482 port->align = 0;
483 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 484 pnp_register_port_resource(option, port);
1da177e4
LT		 485 return;
486}
487
488static void
489pnpacpi_parse_mem24_option(struct pnp_option *option,
9dd78466 490 struct acpi_resource_memory24 *p)
1da177e4 491{
1c6e7d0a 492 struct pnp_mem *mem;
1da177e4 493
50eca3eb 494 if (p->address_length == 0)
1da177e4 495 return;
cd861280 496 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 497 if (!mem)
498 return;
50eca3eb
BM		 499 mem->min = p->minimum;
500 mem->max = p->maximum;
1da177e4 501 mem->align = p->alignment;
50eca3eb 502 mem->size = p->address_length;
1da177e4 503
0897831b 504 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 505 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 506
1c6e7d0a 507 pnp_register_mem_resource(option, mem);
1da177e4
LT		 508 return;
509}
510
511static void
512pnpacpi_parse_mem32_option(struct pnp_option *option,
9dd78466 513 struct acpi_resource_memory32 *p)
1da177e4 514{
1c6e7d0a 515 struct pnp_mem *mem;
1da177e4 516
50eca3eb 517 if (p->address_length == 0)
1da177e4 518 return;
cd861280 519 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 520 if (!mem)
521 return;
50eca3eb
BM		 522 mem->min = p->minimum;
523 mem->max = p->maximum;
1da177e4 524 mem->align = p->alignment;
50eca3eb 525 mem->size = p->address_length;
1da177e4 526
0897831b 527 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 528 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 529
1c6e7d0a 530 pnp_register_mem_resource(option, mem);
1da177e4
LT		 531 return;
532}
533
534static void
535pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
9dd78466 536 struct acpi_resource_fixed_memory32 *p)
1da177e4 537{
1c6e7d0a 538 struct pnp_mem *mem;
1da177e4 539
50eca3eb 540 if (p->address_length == 0)
1da177e4 541 return;
cd861280 542 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 543 if (!mem)
544 return;
50eca3eb
BM		 545 mem->min = mem->max = p->address;
546 mem->size = p->address_length;
1da177e4
LT		 547 mem->align = 0;
548
0897831b 549 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 550 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 551
1c6e7d0a 552 pnp_register_mem_resource(option, mem);
1da177e4
LT		 553 return;
554}
555
6f957eaf
BH		 556static void
557pnpacpi_parse_address_option(struct pnp_option *option, struct acpi_resource *r)
558{
559 struct acpi_resource_address64 addr, *p = &addr;
560 acpi_status status;
1c6e7d0a
BH		 561 struct pnp_mem *mem;
562 struct pnp_port *port;
6f957eaf
BH		 563
564 status = acpi_resource_to_address64(r, p);
565 if (!ACPI_SUCCESS(status)) {
9dd78466
BH		 566 pnp_warn("PnPACPI: failed to convert resource type %d",
567 r->type);
6f957eaf
BH		 568 return;
569 }
570
571 if (p->address_length == 0)
572 return;
573
574 if (p->resource_type == ACPI_MEMORY_RANGE) {
cd861280 575 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
6f957eaf
BH		 576 if (!mem)
577 return;
ed03f430 578 mem->min = mem->max = p->minimum;
6f957eaf
BH		 579 mem->size = p->address_length;
580 mem->align = 0;
ed03f430 581 mem->flags = (p->info.mem.write_protect ==
9dd78466
BH		 582 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
583 : 0;
1c6e7d0a 584 pnp_register_mem_resource(option, mem);
6f957eaf 585 } else if (p->resource_type == ACPI_IO_RANGE) {
cd861280 586 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
6f957eaf
BH		 587 if (!port)
588 return;
ed03f430 589 port->min = port->max = p->minimum;
6f957eaf
BH		 590 port->size = p->address_length;
591 port->align = 0;
592 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 593 pnp_register_port_resource(option, port);
6f957eaf
BH		 594 }
595}
596
1da177e4
LT		 597struct acpipnp_parse_option_s {
598 struct pnp_option *option;
b008b8d7 599 struct pnp_option *option_independent;
1da177e4
LT		 600 struct pnp_dev *dev;
601};
602
50eca3eb 603static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
9dd78466 604 void *data)
1da177e4
LT		 605{
606 int priority = 0;
9dd78466
BH		 607 struct acpipnp_parse_option_s *parse_data =
608 (struct acpipnp_parse_option_s *)data;
1da177e4
LT		 609 struct pnp_dev *dev = parse_data->dev;
610 struct pnp_option *option = parse_data->option;
611
eca008c8 612 switch (res->type) {
9dd78466
BH		 613 case ACPI_RESOURCE_TYPE_IRQ:
614 pnpacpi_parse_irq_option(option, &res->data.irq);
615 break;
0af5853b 616
9dd78466
BH		 617 case ACPI_RESOURCE_TYPE_DMA:
618 pnpacpi_parse_dma_option(option, &res->data.dma);
619 break;
0af5853b 620
9dd78466
BH		 621 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
622 switch (res->data.start_dpf.compatibility_priority) {
623 case ACPI_GOOD_CONFIGURATION:
624 priority = PNP_RES_PRIORITY_PREFERRED;
1da177e4 625 break;
0af5853b 626
9dd78466
BH		 627 case ACPI_ACCEPTABLE_CONFIGURATION:
628 priority = PNP_RES_PRIORITY_ACCEPTABLE;
b008b8d7 629 break;
0af5853b 630
9dd78466
BH		 631 case ACPI_SUB_OPTIMAL_CONFIGURATION:
632 priority = PNP_RES_PRIORITY_FUNCTIONAL;
0af5853b 633 break;
9dd78466
BH		 634 default:
635 priority = PNP_RES_PRIORITY_INVALID;
0af5853b 636 break;
9dd78466
BH		 637 }
638 /* TBD: Considering performace/robustness bits */
639 option = pnp_register_dependent_option(dev, priority);
640 if (!option)
641 return AE_ERROR;
642 parse_data->option = option;
643 break;
0af5853b 644
9dd78466
BH		 645 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
646 /*only one EndDependentFn is allowed */
647 if (!parse_data->option_independent) {
648 pnp_warn("PnPACPI: more than one EndDependentFn");
649 return AE_ERROR;
650 }
651 parse_data->option = parse_data->option_independent;
652 parse_data->option_independent = NULL;
653 break;
0af5853b 654
9dd78466
BH		 655 case ACPI_RESOURCE_TYPE_IO:
656 pnpacpi_parse_port_option(option, &res->data.io);
657 break;
0af5853b 658
9dd78466
BH		 659 case ACPI_RESOURCE_TYPE_FIXED_IO:
660 pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
661 break;
0af5853b 662
9dd78466
BH		 663 case ACPI_RESOURCE_TYPE_VENDOR:
664 case ACPI_RESOURCE_TYPE_END_TAG:
665 break;
0af5853b 666
9dd78466
BH		 667 case ACPI_RESOURCE_TYPE_MEMORY24:
668 pnpacpi_parse_mem24_option(option, &res->data.memory24);
669 break;
0af5853b 670
9dd78466
BH		 671 case ACPI_RESOURCE_TYPE_MEMORY32:
672 pnpacpi_parse_mem32_option(option, &res->data.memory32);
673 break;
0af5853b 674
9dd78466
BH		 675 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
676 pnpacpi_parse_fixed_mem32_option(option,
677 &res->data.fixed_memory32);
678 break;
0af5853b 679
9dd78466
BH		 680 case ACPI_RESOURCE_TYPE_ADDRESS16:
681 case ACPI_RESOURCE_TYPE_ADDRESS32:
682 case ACPI_RESOURCE_TYPE_ADDRESS64:
683 pnpacpi_parse_address_option(option, res);
684 break;
0af5853b 685
9dd78466
BH		 686 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
687 break;
688
689 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
690 pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
691 break;
692
693 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
694 break;
695
696 default:
697 pnp_warn("PnPACPI: unknown resource type %d", res->type);
698 return AE_ERROR;
1da177e4 699 }
1c6e7d0a 700
1da177e4
LT		 701 return AE_OK;
702}
703
50eca3eb 704acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
9dd78466 705 struct pnp_dev * dev)
1da177e4
LT		 706{
707 acpi_status status;
708 struct acpipnp_parse_option_s parse_data;
709
710 parse_data.option = pnp_register_independent_option(dev);
711 if (!parse_data.option)
712 return AE_ERROR;
b008b8d7 713 parse_data.option_independent = parse_data.option;
1da177e4 714 parse_data.dev = dev;
50eca3eb 715 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
9dd78466 716 pnpacpi_option_resource, &parse_data);
1da177e4
LT		 717
718 return status;
719}
720
b5f2490b 721static int pnpacpi_supported_resource(struct acpi_resource *res)
1da177e4 722{
eca008c8 723 switch (res->type) {
50eca3eb 724 case ACPI_RESOURCE_TYPE_IRQ:
50eca3eb
BM		 725 case ACPI_RESOURCE_TYPE_DMA:
726 case ACPI_RESOURCE_TYPE_IO:
727 case ACPI_RESOURCE_TYPE_FIXED_IO:
728 case ACPI_RESOURCE_TYPE_MEMORY24:
729 case ACPI_RESOURCE_TYPE_MEMORY32:
730 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
50eca3eb
BM		 731 case ACPI_RESOURCE_TYPE_ADDRESS16:
732 case ACPI_RESOURCE_TYPE_ADDRESS32:
733 case ACPI_RESOURCE_TYPE_ADDRESS64:
0af5853b 734 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
b5f2490b 735 return 1;
1da177e4 736 }
b5f2490b
BH		 737 return 0;
738}
739
740/*
741 * Set resource
742 */
743static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
9dd78466 744 void *data)
b5f2490b
BH		 745{
746 int *res_cnt = (int *)data;
747
748 if (pnpacpi_supported_resource(res))
749 (*res_cnt)++;
1da177e4
LT		 750 return AE_OK;
751}
752
1c6e7d0a 753static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
1da177e4 754{
1c6e7d0a 755 struct acpi_resource **resource = (struct acpi_resource **)data;
b5f2490b
BH		 756
757 if (pnpacpi_supported_resource(res)) {
eca008c8 758 (*resource)->type = res->type;
b5f2490b 759 (*resource)->length = sizeof(struct acpi_resource);
1da177e4 760 (*resource)++;
1da177e4
LT		 761 }
762
763 return AE_OK;
764}
765
50eca3eb 766int pnpacpi_build_resource_template(acpi_handle handle,
9dd78466 767 struct acpi_buffer *buffer)
1da177e4
LT		 768{
769 struct acpi_resource *resource;
770 int res_cnt = 0;
771 acpi_status status;
772
50eca3eb 773 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 774 pnpacpi_count_resources, &res_cnt);
1da177e4
LT		 775 if (ACPI_FAILURE(status)) {
776 pnp_err("Evaluate _CRS failed");
777 return -EINVAL;
778 }
779 if (!res_cnt)
780 return -EINVAL;
781 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
cd861280 782 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
1da177e4
LT		 783 if (!buffer->pointer)
784 return -ENOMEM;
785 pnp_dbg("Res cnt %d", res_cnt);
786 resource = (struct acpi_resource *)buffer->pointer;
50eca3eb 787 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 788 pnpacpi_type_resources, &resource);
1da177e4
LT		 789 if (ACPI_FAILURE(status)) {
790 kfree(buffer->pointer);
791 pnp_err("Evaluate _CRS failed");
792 return -EINVAL;
793 }
794 /* resource will pointer the end resource now */
50eca3eb 795 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
1da177e4
LT		 796
797 return 0;
798}
799
50eca3eb 800static void pnpacpi_encode_irq(struct acpi_resource *resource,
9dd78466 801 struct resource *p)
1da177e4 802{
50eca3eb 803 int triggering, polarity;
1c6e7d0a
BH		 804
805 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
50eca3eb
BM		 806 resource->data.irq.triggering = triggering;
807 resource->data.irq.polarity = polarity;
808 if (triggering == ACPI_EDGE_SENSITIVE)
809 resource->data.irq.sharable = ACPI_EXCLUSIVE;
1da177e4 810 else
50eca3eb
BM		 811 resource->data.irq.sharable = ACPI_SHARED;
812 resource->data.irq.interrupt_count = 1;
1da177e4
LT		 813 resource->data.irq.interrupts[0] = p->start;
814}
815
816static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
9dd78466 817 struct resource *p)
1da177e4 818{
50eca3eb 819 int triggering, polarity;
1c6e7d0a
BH		 820
821 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
1da177e4 822 resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
50eca3eb
BM		 823 resource->data.extended_irq.triggering = triggering;
824 resource->data.extended_irq.polarity = polarity;
825 if (triggering == ACPI_EDGE_SENSITIVE)
826 resource->data.irq.sharable = ACPI_EXCLUSIVE;
1da177e4 827 else
50eca3eb
BM		 828 resource->data.irq.sharable = ACPI_SHARED;
829 resource->data.extended_irq.interrupt_count = 1;
1da177e4
LT		 830 resource->data.extended_irq.interrupts[0] = p->start;
831}
832
833static void pnpacpi_encode_dma(struct acpi_resource *resource,
9dd78466 834 struct resource *p)
1da177e4 835{
1da177e4 836 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
ccc4c7bb 837 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
9dd78466
BH		 838 case IORESOURCE_DMA_TYPEA:
839 resource->data.dma.type = ACPI_TYPE_A;
840 break;
841 case IORESOURCE_DMA_TYPEB:
842 resource->data.dma.type = ACPI_TYPE_B;
843 break;
844 case IORESOURCE_DMA_TYPEF:
845 resource->data.dma.type = ACPI_TYPE_F;
846 break;
847 default:
848 resource->data.dma.type = ACPI_COMPATIBILITY;
ccc4c7bb
VP		 849 }
850
851 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
9dd78466
BH		 852 case IORESOURCE_DMA_8BIT:
853 resource->data.dma.transfer = ACPI_TRANSFER_8;
854 break;
855 case IORESOURCE_DMA_8AND16BIT:
856 resource->data.dma.transfer = ACPI_TRANSFER_8_16;
857 break;
858 default:
859 resource->data.dma.transfer = ACPI_TRANSFER_16;
ccc4c7bb
VP		 860 }
861
862 resource->data.dma.bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
50eca3eb 863 resource->data.dma.channel_count = 1;
1da177e4
LT		 864 resource->data.dma.channels[0] = p->start;
865}
866
867static void pnpacpi_encode_io(struct acpi_resource *resource,
9dd78466 868 struct resource *p)
1da177e4 869{
1da177e4 870 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
9dd78466
BH		 871 resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
872 ACPI_DECODE_16 : ACPI_DECODE_10;
50eca3eb
BM		 873 resource->data.io.minimum = p->start;
874 resource->data.io.maximum = p->end;
9dd78466 875 resource->data.io.alignment = 0; /* Correct? */
50eca3eb 876 resource->data.io.address_length = p->end - p->start + 1;
1da177e4
LT		 877}
878
879static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
9dd78466 880 struct resource *p)
1da177e4 881{
50eca3eb
BM		 882 resource->data.fixed_io.address = p->start;
883 resource->data.fixed_io.address_length = p->end - p->start + 1;
1da177e4
LT		 884}
885
886static void pnpacpi_encode_mem24(struct acpi_resource *resource,
9dd78466 887 struct resource *p)
1da177e4 888{
1da177e4 889 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
0897831b 890 resource->data.memory24.write_protect =
9dd78466
BH		 891 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
892 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
50eca3eb
BM		 893 resource->data.memory24.minimum = p->start;
894 resource->data.memory24.maximum = p->end;
1da177e4 895 resource->data.memory24.alignment = 0;
50eca3eb 896 resource->data.memory24.address_length = p->end - p->start + 1;
1da177e4
LT		 897}
898
899static void pnpacpi_encode_mem32(struct acpi_resource *resource,
9dd78466 900 struct resource *p)
1da177e4 901{
0897831b 902 resource->data.memory32.write_protect =
9dd78466
BH		 903 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
904 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
50eca3eb
BM		 905 resource->data.memory32.minimum = p->start;
906 resource->data.memory32.maximum = p->end;
1da177e4 907 resource->data.memory32.alignment = 0;
50eca3eb 908 resource->data.memory32.address_length = p->end - p->start + 1;
1da177e4
LT		 909}
910
911static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
9dd78466 912 struct resource *p)
1da177e4 913{
0897831b 914 resource->data.fixed_memory32.write_protect =
9dd78466
BH		 915 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
916 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
50eca3eb
BM		 917 resource->data.fixed_memory32.address = p->start;
918 resource->data.fixed_memory32.address_length = p->end - p->start + 1;
1da177e4
LT		 919}
920
50eca3eb 921int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
9dd78466 922 struct acpi_buffer *buffer)
1da177e4
LT		 923{
924 int i = 0;
925 /* pnpacpi_build_resource_template allocates extra mem */
9dd78466
BH		 926 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
927 struct acpi_resource *resource =
928 (struct acpi_resource *)buffer->pointer;
1da177e4
LT		 929 int port = 0, irq = 0, dma = 0, mem = 0;
930
931 pnp_dbg("res cnt %d", res_cnt);
932 while (i < res_cnt) {
9dd78466 933 switch (resource->type) {
50eca3eb 934 case ACPI_RESOURCE_TYPE_IRQ:
1da177e4 935 pnp_dbg("Encode irq");
50eca3eb 936 pnpacpi_encode_irq(resource,
9dd78466 937 &res_table->irq_resource[irq]);
1da177e4
LT		 938 irq++;
939 break;
940
50eca3eb 941 case ACPI_RESOURCE_TYPE_DMA:
1da177e4 942 pnp_dbg("Encode dma");
50eca3eb 943 pnpacpi_encode_dma(resource,
9dd78466 944 &res_table->dma_resource[dma]);
1c6e7d0a 945 dma++;
1da177e4 946 break;
50eca3eb 947 case ACPI_RESOURCE_TYPE_IO:
1da177e4 948 pnp_dbg("Encode io");
50eca3eb 949 pnpacpi_encode_io(resource,
9dd78466 950 &res_table->port_resource[port]);
1c6e7d0a 951 port++;
1da177e4 952 break;
50eca3eb 953 case ACPI_RESOURCE_TYPE_FIXED_IO:
1da177e4
LT		 954 pnp_dbg("Encode fixed io");
955 pnpacpi_encode_fixed_io(resource,
9dd78466
BH		 956 &res_table->
957 port_resource[port]);
1c6e7d0a 958 port++;
1da177e4 959 break;
50eca3eb 960 case ACPI_RESOURCE_TYPE_MEMORY24:
1da177e4
LT		 961 pnp_dbg("Encode mem24");
962 pnpacpi_encode_mem24(resource,
9dd78466 963 &res_table->mem_resource[mem]);
1c6e7d0a 964 mem++;
1da177e4 965 break;
50eca3eb 966 case ACPI_RESOURCE_TYPE_MEMORY32:
1da177e4
LT		 967 pnp_dbg("Encode mem32");
968 pnpacpi_encode_mem32(resource,
9dd78466 969 &res_table->mem_resource[mem]);
1c6e7d0a 970 mem++;
1da177e4 971 break;
50eca3eb 972 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1da177e4
LT		 973 pnp_dbg("Encode fixed mem32");
974 pnpacpi_encode_fixed_mem32(resource,
9dd78466
BH		 975 &res_table->
976 mem_resource[mem]);
1c6e7d0a 977 mem++;
1da177e4 978 break;
0af5853b
LB		 979 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
980 pnp_dbg("Encode ext irq");
981 pnpacpi_encode_ext_irq(resource,
9dd78466 982 &res_table->irq_resource[irq]);
0af5853b
LB		 983 irq++;
984 break;
985 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
986 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
987 case ACPI_RESOURCE_TYPE_VENDOR:
988 case ACPI_RESOURCE_TYPE_END_TAG:
989 case ACPI_RESOURCE_TYPE_ADDRESS16:
990 case ACPI_RESOURCE_TYPE_ADDRESS32:
991 case ACPI_RESOURCE_TYPE_ADDRESS64:
992 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
993 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
9dd78466 994 default: /* other type */
eca008c8 995 pnp_warn("unknown resource type %d", resource->type);
1da177e4
LT		 996 return -EINVAL;
997 }
1c6e7d0a
BH		 998 resource++;
999 i++;
1da177e4
LT		 1000 }
1001 return 0;
1002}
Linux 6.x block layer and io_uring tree(s)