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ISAPNP: fold isapnp_read_resources() back into isapnp_get_resources()
[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>
02d83b5d
BH		 24#include <linux/pnp.h>
25#include "../base.h"
1da177e4
LT		 26#include "pnpacpi.h"
27
28#ifdef CONFIG_IA64
29#define valid_IRQ(i) (1)
30#else
31#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
32#endif
33
34/*
35 * Allocated Resources
36 */
cd7ec927 37static int irq_flags(int triggering, int polarity, int shareable)
1da177e4 38{
cd7ec927
BH		 39 int flags;
40
50eca3eb 41 if (triggering == ACPI_LEVEL_SENSITIVE) {
1c6e7d0a 42 if (polarity == ACPI_ACTIVE_LOW)
cd7ec927 43 flags = IORESOURCE_IRQ_LOWLEVEL;
1da177e4 44 else
cd7ec927 45 flags = IORESOURCE_IRQ_HIGHLEVEL;
9dd78466 46 } else {
1c6e7d0a 47 if (polarity == ACPI_ACTIVE_LOW)
cd7ec927 48 flags = IORESOURCE_IRQ_LOWEDGE;
1da177e4 49 else
cd7ec927 50 flags = IORESOURCE_IRQ_HIGHEDGE;
1da177e4 51 }
cd7ec927
BH		 52
53 if (shareable)
54 flags |= IORESOURCE_IRQ_SHAREABLE;
55
56 return flags;
1da177e4
LT		 57}
58
50eca3eb 59static void decode_irq_flags(int flag, int *triggering, int *polarity)
1da177e4
LT		 60{
61 switch (flag) {
62 case IORESOURCE_IRQ_LOWLEVEL:
50eca3eb
BM		 63 *triggering = ACPI_LEVEL_SENSITIVE;
64 *polarity = ACPI_ACTIVE_LOW;
1da177e4 65 break;
1c6e7d0a 66 case IORESOURCE_IRQ_HIGHLEVEL:
50eca3eb
BM		 67 *triggering = ACPI_LEVEL_SENSITIVE;
68 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 69 break;
70 case IORESOURCE_IRQ_LOWEDGE:
50eca3eb
BM		 71 *triggering = ACPI_EDGE_SENSITIVE;
72 *polarity = ACPI_ACTIVE_LOW;
1da177e4
LT		 73 break;
74 case IORESOURCE_IRQ_HIGHEDGE:
50eca3eb
BM		 75 *triggering = ACPI_EDGE_SENSITIVE;
76 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 77 break;
78 }
79}
80
4ab55d8d 81static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
07d4e9af
BH		 82 u32 gsi, int triggering,
83 int polarity, int shareable)
1da177e4 84{
dbddd038 85 int irq, flags;
61fd47e0 86 int p, t;
dbed12da
BH		 87
88 if (!valid_IRQ(gsi))
89 return;
90
61fd47e0
SL		 91 /*
92 * in IO-APIC mode, use overrided attribute. Two reasons:
93 * 1. BIOS bug in DSDT
94 * 2. BIOS uses IO-APIC mode Interrupt Source Override
95 */
96 if (!acpi_get_override_irq(gsi, &t, &p)) {
97 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
98 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
99
100 if (triggering != t || polarity != p) {
af11cb2d 101 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
61fd47e0
SL		 102 gsi, t ? "edge":"level", p ? "low":"high");
103 triggering = t;
104 polarity = p;
105 }
106 }
107
dbddd038 108 flags = irq_flags(triggering, polarity, shareable);
50eca3eb 109 irq = acpi_register_gsi(gsi, triggering, polarity);
dbddd038
BH		 110 if (irq >= 0)
111 pcibios_penalize_isa_irq(irq, 1);
112 else
113 flags |= IORESOURCE_DISABLED;
dbed12da 114
dbddd038 115 pnp_add_irq_resource(dev, irq, flags);
1da177e4
LT		 116}
117
362ea087
MK		 118static int dma_flags(int type, int bus_master, int transfer)
119{
120 int flags = 0;
121
122 if (bus_master)
123 flags |= IORESOURCE_DMA_MASTER;
124 switch (type) {
125 case ACPI_COMPATIBILITY:
126 flags |= IORESOURCE_DMA_COMPATIBLE;
127 break;
128 case ACPI_TYPE_A:
129 flags |= IORESOURCE_DMA_TYPEA;
130 break;
131 case ACPI_TYPE_B:
132 flags |= IORESOURCE_DMA_TYPEB;
133 break;
134 case ACPI_TYPE_F:
135 flags |= IORESOURCE_DMA_TYPEF;
136 break;
137 default:
138 /* Set a default value ? */
139 flags |= IORESOURCE_DMA_COMPATIBLE;
140 pnp_err("Invalid DMA type");
141 }
142 switch (transfer) {
143 case ACPI_TRANSFER_8:
144 flags |= IORESOURCE_DMA_8BIT;
145 break;
146 case ACPI_TRANSFER_8_16:
147 flags |= IORESOURCE_DMA_8AND16BIT;
148 break;
149 case ACPI_TRANSFER_16:
150 flags |= IORESOURCE_DMA_16BIT;
151 break;
152 default:
153 /* Set a default value ? */
154 flags |= IORESOURCE_DMA_8AND16BIT;
155 pnp_err("Invalid DMA transfer type");
156 }
157
158 return flags;
159}
160
cc8c2e30
BH		 161static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
162 u64 len, int io_decode)
1da177e4 163{
cc8c2e30
BH		 164 int flags = 0;
165 u64 end = start + len - 1;
07d4e9af 166
cc8c2e30
BH		 167 if (io_decode == ACPI_DECODE_16)
168 flags |= PNP_PORT_FLAG_16BITADDR;
169 if (len == 0 || end >= 0x10003)
170 flags |= IORESOURCE_DISABLED;
171
172 pnp_add_io_resource(dev, start, end, flags);
1da177e4
LT		 173}
174
4ab55d8d 175static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
d6180f36 176 u64 start, u64 len,
07d4e9af 177 int write_protect)
1da177e4 178{
d6180f36
BH		 179 int flags = 0;
180 u64 end = start + len - 1;
181
182 if (len == 0)
183 flags |= IORESOURCE_DISABLED;
184 if (write_protect == ACPI_READ_WRITE_MEMORY)
185 flags |= IORESOURCE_MEM_WRITEABLE;
186
187 pnp_add_mem_resource(dev, start, end, flags);
1da177e4
LT		 188}
189
4ab55d8d 190static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
07d4e9af 191 struct acpi_resource *res)
1acfb7f2
BH		 192{
193 struct acpi_resource_address64 addr, *p = &addr;
194 acpi_status status;
195
196 status = acpi_resource_to_address64(res, p);
197 if (!ACPI_SUCCESS(status)) {
af11cb2d 198 dev_warn(&dev->dev, "failed to convert resource type %d\n",
9dd78466 199 res->type);
1acfb7f2
BH		 200 return;
201 }
202
2b8de5f5 203 if (p->producer_consumer == ACPI_PRODUCER)
204 return;
205
1acfb7f2 206 if (p->resource_type == ACPI_MEMORY_RANGE)
4ab55d8d 207 pnpacpi_parse_allocated_memresource(dev,
07d4e9af
BH		 208 p->minimum, p->address_length,
209 p->info.mem.write_protect);
1acfb7f2 210 else if (p->resource_type == ACPI_IO_RANGE)
4ab55d8d 211 pnpacpi_parse_allocated_ioresource(dev,
07d4e9af
BH		 212 p->minimum, p->address_length,
213 p->granularity == 0xfff ? ACPI_DECODE_10 :
214 ACPI_DECODE_16);
1acfb7f2 215}
1da177e4
LT		 216
217static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
9dd78466 218 void *data)
1da177e4 219{
4ab55d8d 220 struct pnp_dev *dev = data;
9570a20e
BH		 221 struct acpi_resource_irq *irq;
222 struct acpi_resource_dma *dma;
223 struct acpi_resource_io *io;
224 struct acpi_resource_fixed_io *fixed_io;
225 struct acpi_resource_memory24 *memory24;
226 struct acpi_resource_memory32 *memory32;
227 struct acpi_resource_fixed_memory32 *fixed_memory32;
228 struct acpi_resource_extended_irq *extended_irq;
dc16f5f2 229 int i, flags;
1da177e4 230
eca008c8 231 switch (res->type) {
50eca3eb 232 case ACPI_RESOURCE_TYPE_IRQ:
dbed12da
BH		 233 /*
234 * Per spec, only one interrupt per descriptor is allowed in
235 * _CRS, but some firmware violates this, so parse them all.
236 */
9570a20e
BH		 237 irq = &res->data.irq;
238 for (i = 0; i < irq->interrupt_count; i++) {
4ab55d8d 239 pnpacpi_parse_allocated_irqresource(dev,
9570a20e
BH		 240 irq->interrupts[i],
241 irq->triggering,
242 irq->polarity,
243 irq->sharable);
1da177e4
LT		 244 }
245 break;
246
50eca3eb 247 case ACPI_RESOURCE_TYPE_DMA:
9570a20e 248 dma = &res->data.dma;
dc16f5f2
BH		 249 if (dma->channel_count > 0) {
250 flags = dma_flags(dma->type, dma->bus_master,
251 dma->transfer);
252 if (dma->channels[0] == (u8) -1)
253 flags |= IORESOURCE_DISABLED;
254 pnp_add_dma_resource(dev, dma->channels[0], flags);
255 }
1da177e4 256 break;
0af5853b 257
50eca3eb 258 case ACPI_RESOURCE_TYPE_IO:
9570a20e 259 io = &res->data.io;
4ab55d8d 260 pnpacpi_parse_allocated_ioresource(dev,
9570a20e
BH		 261 io->minimum,
262 io->address_length,
263 io->io_decode);
1da177e4 264 break;
0af5853b
LB		 265
266 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
267 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
268 break;
269
50eca3eb 270 case ACPI_RESOURCE_TYPE_FIXED_IO:
9570a20e 271 fixed_io = &res->data.fixed_io;
4ab55d8d 272 pnpacpi_parse_allocated_ioresource(dev,
9570a20e
BH		 273 fixed_io->address,
274 fixed_io->address_length,
07d4e9af 275 ACPI_DECODE_10);
1da177e4 276 break;
0af5853b
LB		 277
278 case ACPI_RESOURCE_TYPE_VENDOR:
279 break;
280
281 case ACPI_RESOURCE_TYPE_END_TAG:
282 break;
283
50eca3eb 284 case ACPI_RESOURCE_TYPE_MEMORY24:
9570a20e 285 memory24 = &res->data.memory24;
4ab55d8d 286 pnpacpi_parse_allocated_memresource(dev,
9570a20e
BH		 287 memory24->minimum,
288 memory24->address_length,
289 memory24->write_protect);
1da177e4 290 break;
50eca3eb 291 case ACPI_RESOURCE_TYPE_MEMORY32:
9570a20e 292 memory32 = &res->data.memory32;
4ab55d8d 293 pnpacpi_parse_allocated_memresource(dev,
9570a20e
BH		 294 memory32->minimum,
295 memory32->address_length,
296 memory32->write_protect);
1da177e4 297 break;
50eca3eb 298 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
9570a20e 299 fixed_memory32 = &res->data.fixed_memory32;
4ab55d8d 300 pnpacpi_parse_allocated_memresource(dev,
9570a20e
BH		 301 fixed_memory32->address,
302 fixed_memory32->address_length,
303 fixed_memory32->write_protect);
1da177e4 304 break;
50eca3eb 305 case ACPI_RESOURCE_TYPE_ADDRESS16:
50eca3eb 306 case ACPI_RESOURCE_TYPE_ADDRESS32:
50eca3eb 307 case ACPI_RESOURCE_TYPE_ADDRESS64:
4ab55d8d 308 pnpacpi_parse_allocated_address_space(dev, res);
1da177e4 309 break;
0af5853b
LB		 310
311 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
2b8de5f5 312 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
313 return AE_OK;
0af5853b
LB		 314 break;
315
316 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
9570a20e
BH		 317 extended_irq = &res->data.extended_irq;
318 if (extended_irq->producer_consumer == ACPI_PRODUCER)
2b8de5f5 319 return AE_OK;
320
9570a20e 321 for (i = 0; i < extended_irq->interrupt_count; i++) {
4ab55d8d 322 pnpacpi_parse_allocated_irqresource(dev,
9570a20e
BH		 323 extended_irq->interrupts[i],
324 extended_irq->triggering,
325 extended_irq->polarity,
326 extended_irq->sharable);
0af5853b
LB		 327 }
328 break;
329
330 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1da177e4 331 break;
0af5853b 332
1da177e4 333 default:
af11cb2d
BH		 334 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
335 res->type);
1da177e4
LT		 336 return AE_ERROR;
337 }
1c6e7d0a 338
1da177e4
LT		 339 return AE_OK;
340}
341
4ab55d8d 342acpi_status pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
1da177e4 343{
4ab55d8d
BH		 344 acpi_handle handle = dev->data;
345
72dcc883
BH		 346 dev_dbg(&dev->dev, "parse allocated resources\n");
347
f4490002 348 pnp_init_resources(dev);
1da177e4 349
9dd78466 350 return acpi_walk_resources(handle, METHOD_NAME__CRS,
4ab55d8d 351 pnpacpi_allocated_resource, dev);
1da177e4
LT		 352}
353
c1caf06c
BH		 354static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
355 struct pnp_option *option,
2bb9a6b3 356 struct acpi_resource_dma *p)
1da177e4
LT		 357{
358 int i;
9dd78466 359 struct pnp_dma *dma;
1da177e4 360
50eca3eb 361 if (p->channel_count == 0)
1da177e4 362 return;
cd861280 363 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
1da177e4
LT		 364 if (!dma)
365 return;
366
9dd78466 367 for (i = 0; i < p->channel_count; i++)
1da177e4 368 dma->map |= 1 << p->channels[i];
362ea087
MK		 369
370 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
1da177e4 371
c1caf06c 372 pnp_register_dma_resource(dev, option, dma);
1da177e4
LT		 373}
374
c1caf06c
BH		 375static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
376 struct pnp_option *option,
2bb9a6b3 377 struct acpi_resource_irq *p)
1da177e4
LT		 378{
379 int i;
1c6e7d0a
BH		 380 struct pnp_irq *irq;
381
50eca3eb 382 if (p->interrupt_count == 0)
1da177e4 383 return;
cd861280 384 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 385 if (!irq)
386 return;
387
9dd78466 388 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 389 if (p->interrupts[i])
390 __set_bit(p->interrupts[i], irq->map);
cd7ec927 391 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
1da177e4 392
c1caf06c 393 pnp_register_irq_resource(dev, option, irq);
1da177e4
LT		 394}
395
c1caf06c
BH		 396static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
397 struct pnp_option *option,
2bb9a6b3 398 struct acpi_resource_extended_irq *p)
1da177e4
LT		 399{
400 int i;
1c6e7d0a 401 struct pnp_irq *irq;
1da177e4 402
50eca3eb 403 if (p->interrupt_count == 0)
1da177e4 404 return;
cd861280 405 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 406 if (!irq)
407 return;
408
9dd78466 409 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 410 if (p->interrupts[i])
411 __set_bit(p->interrupts[i], irq->map);
cd7ec927 412 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
1da177e4 413
c1caf06c 414 pnp_register_irq_resource(dev, option, irq);
1da177e4
LT		 415}
416
c1caf06c
BH		 417static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
418 struct pnp_option *option,
2bb9a6b3 419 struct acpi_resource_io *io)
1da177e4 420{
1c6e7d0a 421 struct pnp_port *port;
1da177e4 422
50eca3eb 423 if (io->address_length == 0)
1da177e4 424 return;
cd861280 425 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 426 if (!port)
427 return;
50eca3eb
BM		 428 port->min = io->minimum;
429 port->max = io->maximum;
1da177e4 430 port->align = io->alignment;
50eca3eb
BM		 431 port->size = io->address_length;
432 port->flags = ACPI_DECODE_16 == io->io_decode ?
9dd78466 433 PNP_PORT_FLAG_16BITADDR : 0;
c1caf06c 434 pnp_register_port_resource(dev, option, port);
1da177e4
LT		 435}
436
c1caf06c
BH		 437static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
438 struct pnp_option *option,
2bb9a6b3 439 struct acpi_resource_fixed_io *io)
1da177e4 440{
1c6e7d0a 441 struct pnp_port *port;
1da177e4 442
50eca3eb 443 if (io->address_length == 0)
1da177e4 444 return;
cd861280 445 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 446 if (!port)
447 return;
50eca3eb
BM		 448 port->min = port->max = io->address;
449 port->size = io->address_length;
1da177e4
LT		 450 port->align = 0;
451 port->flags = PNP_PORT_FLAG_FIXED;
c1caf06c 452 pnp_register_port_resource(dev, option, port);
1da177e4
LT		 453}
454
c1caf06c
BH		 455static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
456 struct pnp_option *option,
2bb9a6b3 457 struct acpi_resource_memory24 *p)
1da177e4 458{
1c6e7d0a 459 struct pnp_mem *mem;
1da177e4 460
50eca3eb 461 if (p->address_length == 0)
1da177e4 462 return;
cd861280 463 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 464 if (!mem)
465 return;
50eca3eb
BM		 466 mem->min = p->minimum;
467 mem->max = p->maximum;
1da177e4 468 mem->align = p->alignment;
50eca3eb 469 mem->size = p->address_length;
1da177e4 470
0897831b 471 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 472 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 473
c1caf06c 474 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 475}
476
c1caf06c
BH		 477static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
478 struct pnp_option *option,
2bb9a6b3 479 struct acpi_resource_memory32 *p)
1da177e4 480{
1c6e7d0a 481 struct pnp_mem *mem;
1da177e4 482
50eca3eb 483 if (p->address_length == 0)
1da177e4 484 return;
cd861280 485 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 486 if (!mem)
487 return;
50eca3eb
BM		 488 mem->min = p->minimum;
489 mem->max = p->maximum;
1da177e4 490 mem->align = p->alignment;
50eca3eb 491 mem->size = p->address_length;
1da177e4 492
0897831b 493 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 494 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 495
c1caf06c 496 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 497}
498
c1caf06c
BH		 499static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
500 struct pnp_option *option,
2bb9a6b3 501 struct acpi_resource_fixed_memory32 *p)
1da177e4 502{
1c6e7d0a 503 struct pnp_mem *mem;
1da177e4 504
50eca3eb 505 if (p->address_length == 0)
1da177e4 506 return;
cd861280 507 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 508 if (!mem)
509 return;
50eca3eb
BM		 510 mem->min = mem->max = p->address;
511 mem->size = p->address_length;
1da177e4
LT		 512 mem->align = 0;
513
0897831b 514 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 515 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 516
c1caf06c 517 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 518}
519
c1caf06c
BH		 520static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
521 struct pnp_option *option,
2bb9a6b3 522 struct acpi_resource *r)
6f957eaf
BH		 523{
524 struct acpi_resource_address64 addr, *p = &addr;
525 acpi_status status;
1c6e7d0a
BH		 526 struct pnp_mem *mem;
527 struct pnp_port *port;
6f957eaf
BH		 528
529 status = acpi_resource_to_address64(r, p);
530 if (!ACPI_SUCCESS(status)) {
9dd78466
BH		 531 pnp_warn("PnPACPI: failed to convert resource type %d",
532 r->type);
6f957eaf
BH		 533 return;
534 }
535
536 if (p->address_length == 0)
537 return;
538
539 if (p->resource_type == ACPI_MEMORY_RANGE) {
cd861280 540 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
6f957eaf
BH		 541 if (!mem)
542 return;
ed03f430 543 mem->min = mem->max = p->minimum;
6f957eaf
BH		 544 mem->size = p->address_length;
545 mem->align = 0;
ed03f430 546 mem->flags = (p->info.mem.write_protect ==
9dd78466
BH		 547 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
548 : 0;
c1caf06c 549 pnp_register_mem_resource(dev, option, mem);
6f957eaf 550 } else if (p->resource_type == ACPI_IO_RANGE) {
cd861280 551 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
6f957eaf
BH		 552 if (!port)
553 return;
ed03f430 554 port->min = port->max = p->minimum;
6f957eaf
BH		 555 port->size = p->address_length;
556 port->align = 0;
557 port->flags = PNP_PORT_FLAG_FIXED;
c1caf06c 558 pnp_register_port_resource(dev, option, port);
6f957eaf
BH		 559 }
560}
561
1da177e4
LT		 562struct acpipnp_parse_option_s {
563 struct pnp_option *option;
b008b8d7 564 struct pnp_option *option_independent;
1da177e4
LT		 565 struct pnp_dev *dev;
566};
567
2bb9a6b3
TR		 568static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
569 void *data)
1da177e4
LT		 570{
571 int priority = 0;
4721a4cc 572 struct acpipnp_parse_option_s *parse_data = data;
1da177e4
LT		 573 struct pnp_dev *dev = parse_data->dev;
574 struct pnp_option *option = parse_data->option;
575
eca008c8 576 switch (res->type) {
9dd78466 577 case ACPI_RESOURCE_TYPE_IRQ:
c1caf06c 578 pnpacpi_parse_irq_option(dev, option, &res->data.irq);
9dd78466 579 break;
0af5853b 580
9dd78466 581 case ACPI_RESOURCE_TYPE_DMA:
c1caf06c 582 pnpacpi_parse_dma_option(dev, option, &res->data.dma);
9dd78466 583 break;
0af5853b 584
9dd78466
BH		 585 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
586 switch (res->data.start_dpf.compatibility_priority) {
587 case ACPI_GOOD_CONFIGURATION:
588 priority = PNP_RES_PRIORITY_PREFERRED;
1da177e4 589 break;
0af5853b 590
9dd78466
BH		 591 case ACPI_ACCEPTABLE_CONFIGURATION:
592 priority = PNP_RES_PRIORITY_ACCEPTABLE;
b008b8d7 593 break;
0af5853b 594
9dd78466
BH		 595 case ACPI_SUB_OPTIMAL_CONFIGURATION:
596 priority = PNP_RES_PRIORITY_FUNCTIONAL;
0af5853b 597 break;
9dd78466
BH		 598 default:
599 priority = PNP_RES_PRIORITY_INVALID;
0af5853b 600 break;
9dd78466 601 }
07d4e9af 602 /* TBD: Consider performance/robustness bits */
9dd78466
BH		 603 option = pnp_register_dependent_option(dev, priority);
604 if (!option)
605 return AE_ERROR;
606 parse_data->option = option;
607 break;
0af5853b 608
9dd78466
BH		 609 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
610 /*only one EndDependentFn is allowed */
611 if (!parse_data->option_independent) {
af11cb2d
BH		 612 dev_warn(&dev->dev, "more than one EndDependentFn "
613 "in _PRS\n");
9dd78466
BH		 614 return AE_ERROR;
615 }
616 parse_data->option = parse_data->option_independent;
617 parse_data->option_independent = NULL;
c1caf06c 618 dev_dbg(&dev->dev, "end dependent options\n");
9dd78466 619 break;
0af5853b 620
9dd78466 621 case ACPI_RESOURCE_TYPE_IO:
c1caf06c 622 pnpacpi_parse_port_option(dev, option, &res->data.io);
9dd78466 623 break;
0af5853b 624
9dd78466 625 case ACPI_RESOURCE_TYPE_FIXED_IO:
c1caf06c
BH		 626 pnpacpi_parse_fixed_port_option(dev, option,
627 &res->data.fixed_io);
9dd78466 628 break;
0af5853b 629
9dd78466
BH		 630 case ACPI_RESOURCE_TYPE_VENDOR:
631 case ACPI_RESOURCE_TYPE_END_TAG:
632 break;
0af5853b 633
9dd78466 634 case ACPI_RESOURCE_TYPE_MEMORY24:
c1caf06c 635 pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
9dd78466 636 break;
0af5853b 637
9dd78466 638 case ACPI_RESOURCE_TYPE_MEMORY32:
c1caf06c 639 pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
9dd78466 640 break;
0af5853b 641
9dd78466 642 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
c1caf06c 643 pnpacpi_parse_fixed_mem32_option(dev, option,
9dd78466
BH		 644 &res->data.fixed_memory32);
645 break;
0af5853b 646
9dd78466
BH		 647 case ACPI_RESOURCE_TYPE_ADDRESS16:
648 case ACPI_RESOURCE_TYPE_ADDRESS32:
649 case ACPI_RESOURCE_TYPE_ADDRESS64:
c1caf06c 650 pnpacpi_parse_address_option(dev, option, res);
9dd78466 651 break;
0af5853b 652
9dd78466
BH		 653 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
654 break;
655
656 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
c1caf06c
BH		 657 pnpacpi_parse_ext_irq_option(dev, option,
658 &res->data.extended_irq);
9dd78466
BH		 659 break;
660
661 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
662 break;
663
664 default:
af11cb2d
BH		 665 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
666 res->type);
9dd78466 667 return AE_ERROR;
1da177e4 668 }
1c6e7d0a 669
1da177e4
LT		 670 return AE_OK;
671}
672
4ab55d8d 673acpi_status __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
1da177e4 674{
4ab55d8d 675 acpi_handle handle = dev->data;
1da177e4
LT		 676 acpi_status status;
677 struct acpipnp_parse_option_s parse_data;
678
72dcc883
BH		 679 dev_dbg(&dev->dev, "parse resource options\n");
680
1da177e4
LT		 681 parse_data.option = pnp_register_independent_option(dev);
682 if (!parse_data.option)
683 return AE_ERROR;
b008b8d7 684 parse_data.option_independent = parse_data.option;
1da177e4 685 parse_data.dev = dev;
50eca3eb 686 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
9dd78466 687 pnpacpi_option_resource, &parse_data);
1da177e4
LT		 688
689 return status;
690}
691
b5f2490b 692static int pnpacpi_supported_resource(struct acpi_resource *res)
1da177e4 693{
eca008c8 694 switch (res->type) {
50eca3eb 695 case ACPI_RESOURCE_TYPE_IRQ:
50eca3eb
BM		 696 case ACPI_RESOURCE_TYPE_DMA:
697 case ACPI_RESOURCE_TYPE_IO:
698 case ACPI_RESOURCE_TYPE_FIXED_IO:
699 case ACPI_RESOURCE_TYPE_MEMORY24:
700 case ACPI_RESOURCE_TYPE_MEMORY32:
701 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
50eca3eb
BM		 702 case ACPI_RESOURCE_TYPE_ADDRESS16:
703 case ACPI_RESOURCE_TYPE_ADDRESS32:
704 case ACPI_RESOURCE_TYPE_ADDRESS64:
0af5853b 705 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
b5f2490b 706 return 1;
1da177e4 707 }
b5f2490b
BH		 708 return 0;
709}
710
711/*
712 * Set resource
713 */
714static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
9dd78466 715 void *data)
b5f2490b 716{
4721a4cc 717 int *res_cnt = data;
b5f2490b
BH		 718
719 if (pnpacpi_supported_resource(res))
720 (*res_cnt)++;
1da177e4
LT		 721 return AE_OK;
722}
723
1c6e7d0a 724static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
1da177e4 725{
4721a4cc 726 struct acpi_resource **resource = data;
b5f2490b
BH		 727
728 if (pnpacpi_supported_resource(res)) {
eca008c8 729 (*resource)->type = res->type;
b5f2490b 730 (*resource)->length = sizeof(struct acpi_resource);
1da177e4 731 (*resource)++;
1da177e4
LT		 732 }
733
734 return AE_OK;
735}
736
cdef6254 737int pnpacpi_build_resource_template(struct pnp_dev *dev,
9dd78466 738 struct acpi_buffer *buffer)
1da177e4 739{
cdef6254 740 acpi_handle handle = dev->data;
1da177e4
LT		 741 struct acpi_resource *resource;
742 int res_cnt = 0;
743 acpi_status status;
744
50eca3eb 745 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 746 pnpacpi_count_resources, &res_cnt);
1da177e4 747 if (ACPI_FAILURE(status)) {
af11cb2d 748 dev_err(&dev->dev, "can't evaluate _CRS\n");
1da177e4
LT		 749 return -EINVAL;
750 }
751 if (!res_cnt)
752 return -EINVAL;
753 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
cd861280 754 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
1da177e4
LT		 755 if (!buffer->pointer)
756 return -ENOMEM;
72dcc883 757
1da177e4 758 resource = (struct acpi_resource *)buffer->pointer;
50eca3eb 759 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 760 pnpacpi_type_resources, &resource);
1da177e4
LT		 761 if (ACPI_FAILURE(status)) {
762 kfree(buffer->pointer);
af11cb2d 763 dev_err(&dev->dev, "can't evaluate _CRS\n");
1da177e4
LT		 764 return -EINVAL;
765 }
766 /* resource will pointer the end resource now */
50eca3eb 767 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
1da177e4
LT		 768
769 return 0;
770}
771
72dcc883
BH		 772static void pnpacpi_encode_irq(struct pnp_dev *dev,
773 struct acpi_resource *resource,
9dd78466 774 struct resource *p)
1da177e4 775{
9570a20e 776 struct acpi_resource_irq *irq = &resource->data.irq;
50eca3eb 777 int triggering, polarity;
1c6e7d0a
BH		 778
779 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 780 irq->triggering = triggering;
781 irq->polarity = polarity;
50eca3eb 782 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 783 irq->sharable = ACPI_EXCLUSIVE;
1da177e4 784 else
9570a20e
BH		 785 irq->sharable = ACPI_SHARED;
786 irq->interrupt_count = 1;
787 irq->interrupts[0] = p->start;
72dcc883
BH		 788
789 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
790 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
791 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
792 irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
1da177e4
LT		 793}
794
72dcc883
BH		 795static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
796 struct acpi_resource *resource,
9dd78466 797 struct resource *p)
1da177e4 798{
9570a20e 799 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
50eca3eb 800 int triggering, polarity;
1c6e7d0a
BH		 801
802 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 803 extended_irq->producer_consumer = ACPI_CONSUMER;
804 extended_irq->triggering = triggering;
805 extended_irq->polarity = polarity;
50eca3eb 806 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 807 extended_irq->sharable = ACPI_EXCLUSIVE;
1da177e4 808 else
9570a20e
BH		 809 extended_irq->sharable = ACPI_SHARED;
810 extended_irq->interrupt_count = 1;
811 extended_irq->interrupts[0] = p->start;
72dcc883
BH		 812
813 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
814 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
815 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
816 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
1da177e4
LT		 817}
818
72dcc883
BH		 819static void pnpacpi_encode_dma(struct pnp_dev *dev,
820 struct acpi_resource *resource,
9dd78466 821 struct resource *p)
1da177e4 822{
9570a20e
BH		 823 struct acpi_resource_dma *dma = &resource->data.dma;
824
1da177e4 825 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
ccc4c7bb 826 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
9dd78466 827 case IORESOURCE_DMA_TYPEA:
9570a20e 828 dma->type = ACPI_TYPE_A;
9dd78466
BH		 829 break;
830 case IORESOURCE_DMA_TYPEB:
9570a20e 831 dma->type = ACPI_TYPE_B;
9dd78466
BH		 832 break;
833 case IORESOURCE_DMA_TYPEF:
9570a20e 834 dma->type = ACPI_TYPE_F;
9dd78466
BH		 835 break;
836 default:
9570a20e 837 dma->type = ACPI_COMPATIBILITY;
ccc4c7bb
VP		 838 }
839
840 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
9dd78466 841 case IORESOURCE_DMA_8BIT:
9570a20e 842 dma->transfer = ACPI_TRANSFER_8;
9dd78466
BH		 843 break;
844 case IORESOURCE_DMA_8AND16BIT:
9570a20e 845 dma->transfer = ACPI_TRANSFER_8_16;
9dd78466
BH		 846 break;
847 default:
9570a20e 848 dma->transfer = ACPI_TRANSFER_16;
ccc4c7bb
VP		 849 }
850
9570a20e
BH		 851 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
852 dma->channel_count = 1;
853 dma->channels[0] = p->start;
72dcc883
BH		 854
855 dev_dbg(&dev->dev, " encode dma %d "
856 "type %#x transfer %#x master %d\n",
857 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1da177e4
LT		 858}
859
72dcc883
BH		 860static void pnpacpi_encode_io(struct pnp_dev *dev,
861 struct acpi_resource *resource,
9dd78466 862 struct resource *p)
1da177e4 863{
9570a20e
BH		 864 struct acpi_resource_io *io = &resource->data.io;
865
1da177e4 866 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
9570a20e 867 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
9dd78466 868 ACPI_DECODE_16 : ACPI_DECODE_10;
9570a20e
BH		 869 io->minimum = p->start;
870 io->maximum = p->end;
871 io->alignment = 0; /* Correct? */
872 io->address_length = p->end - p->start + 1;
72dcc883
BH		 873
874 dev_dbg(&dev->dev, " encode io %#llx-%#llx decode %#x\n",
875 (unsigned long long) p->start, (unsigned long long) p->end,
876 io->io_decode);
1da177e4
LT		 877}
878
72dcc883
BH		 879static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
880 struct acpi_resource *resource,
9dd78466 881 struct resource *p)
1da177e4 882{
9570a20e
BH		 883 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
884
885 fixed_io->address = p->start;
886 fixed_io->address_length = p->end - p->start + 1;
72dcc883
BH		 887
888 dev_dbg(&dev->dev, " encode fixed_io %#llx-%#llx\n",
889 (unsigned long long) p->start, (unsigned long long) p->end);
1da177e4
LT		 890}
891
72dcc883
BH		 892static void pnpacpi_encode_mem24(struct pnp_dev *dev,
893 struct acpi_resource *resource,
9dd78466 894 struct resource *p)
1da177e4 895{
9570a20e
BH		 896 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
897
1da177e4 898 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
9570a20e 899 memory24->write_protect =
9dd78466
BH		 900 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
901 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 902 memory24->minimum = p->start;
903 memory24->maximum = p->end;
904 memory24->alignment = 0;
905 memory24->address_length = p->end - p->start + 1;
72dcc883
BH		 906
907 dev_dbg(&dev->dev, " encode mem24 %#llx-%#llx write_protect %#x\n",
908 (unsigned long long) p->start, (unsigned long long) p->end,
909 memory24->write_protect);
1da177e4
LT		 910}
911
72dcc883
BH		 912static void pnpacpi_encode_mem32(struct pnp_dev *dev,
913 struct acpi_resource *resource,
9dd78466 914 struct resource *p)
1da177e4 915{
9570a20e
BH		 916 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
917
918 memory32->write_protect =
9dd78466
BH		 919 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
920 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 921 memory32->minimum = p->start;
922 memory32->maximum = p->end;
923 memory32->alignment = 0;
924 memory32->address_length = p->end - p->start + 1;
72dcc883
BH		 925
926 dev_dbg(&dev->dev, " encode mem32 %#llx-%#llx write_protect %#x\n",
927 (unsigned long long) p->start, (unsigned long long) p->end,
928 memory32->write_protect);
1da177e4
LT		 929}
930
72dcc883
BH		 931static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
932 struct acpi_resource *resource,
9dd78466 933 struct resource *p)
1da177e4 934{
9570a20e
BH		 935 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
936
937 fixed_memory32->write_protect =
9dd78466
BH		 938 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
939 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 940 fixed_memory32->address = p->start;
941 fixed_memory32->address_length = p->end - p->start + 1;
72dcc883
BH		 942
943 dev_dbg(&dev->dev, " encode fixed_mem32 %#llx-%#llx "
944 "write_protect %#x\n",
945 (unsigned long long) p->start, (unsigned long long) p->end,
946 fixed_memory32->write_protect);
1da177e4
LT		 947}
948
4ab55d8d 949int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1da177e4
LT		 950{
951 int i = 0;
952 /* pnpacpi_build_resource_template allocates extra mem */
9dd78466 953 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
4721a4cc 954 struct acpi_resource *resource = buffer->pointer;
1da177e4
LT		 955 int port = 0, irq = 0, dma = 0, mem = 0;
956
72dcc883 957 dev_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1da177e4 958 while (i < res_cnt) {
9dd78466 959 switch (resource->type) {
50eca3eb 960 case ACPI_RESOURCE_TYPE_IRQ:
72dcc883 961 pnpacpi_encode_irq(dev, resource,
7e2cf31f 962 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1da177e4
LT		 963 irq++;
964 break;
965
50eca3eb 966 case ACPI_RESOURCE_TYPE_DMA:
72dcc883 967 pnpacpi_encode_dma(dev, resource,
7e2cf31f 968 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1c6e7d0a 969 dma++;
1da177e4 970 break;
50eca3eb 971 case ACPI_RESOURCE_TYPE_IO:
72dcc883 972 pnpacpi_encode_io(dev, resource,
7e2cf31f 973 pnp_get_resource(dev, IORESOURCE_IO, port));
1c6e7d0a 974 port++;
1da177e4 975 break;
50eca3eb 976 case ACPI_RESOURCE_TYPE_FIXED_IO:
72dcc883 977 pnpacpi_encode_fixed_io(dev, resource,
7e2cf31f 978 pnp_get_resource(dev, IORESOURCE_IO, port));
1c6e7d0a 979 port++;
1da177e4 980 break;
50eca3eb 981 case ACPI_RESOURCE_TYPE_MEMORY24:
72dcc883 982 pnpacpi_encode_mem24(dev, resource,
7e2cf31f 983 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 984 mem++;
1da177e4 985 break;
50eca3eb 986 case ACPI_RESOURCE_TYPE_MEMORY32:
72dcc883 987 pnpacpi_encode_mem32(dev, resource,
7e2cf31f 988 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 989 mem++;
1da177e4 990 break;
50eca3eb 991 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
72dcc883 992 pnpacpi_encode_fixed_mem32(dev, resource,
7e2cf31f 993 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 994 mem++;
1da177e4 995 break;
0af5853b 996 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
72dcc883 997 pnpacpi_encode_ext_irq(dev, resource,
7e2cf31f 998 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
0af5853b
LB		 999 irq++;
1000 break;
1001 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1002 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1003 case ACPI_RESOURCE_TYPE_VENDOR:
1004 case ACPI_RESOURCE_TYPE_END_TAG:
1005 case ACPI_RESOURCE_TYPE_ADDRESS16:
1006 case ACPI_RESOURCE_TYPE_ADDRESS32:
1007 case ACPI_RESOURCE_TYPE_ADDRESS64:
1008 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1009 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
9dd78466 1010 default: /* other type */
af11cb2d
BH		 1011 dev_warn(&dev->dev, "can't encode unknown resource "
1012 "type %d\n", resource->type);
1da177e4
LT		 1013 return -EINVAL;
1014 }
1c6e7d0a
BH		 1015 resource++;
1016 i++;
1da177e4
LT		 1017 }
1018 return 0;
1019}
Linux 6.x block layer and io_uring tree(s)