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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
MC		 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
MC		 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
MC		 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
d152cf5d 342int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
1da177e4 343{
4ab55d8d 344 acpi_handle handle = dev->data;
d152cf5d 345 acpi_status status;
4ab55d8d 346
72dcc883
BH		 347 dev_dbg(&dev->dev, "parse allocated resources\n");
348
f4490002 349 pnp_init_resources(dev);
1da177e4 350
d152cf5d
BH		 351 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
352 pnpacpi_allocated_resource, dev);
353
354 if (ACPI_FAILURE(status)) {
355 if (status != AE_NOT_FOUND)
356 dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
357 return -EPERM;
358 }
359 return 0;
1da177e4
LT		 360}
361
c1caf06c
BH		 362static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
363 struct pnp_option *option,
2bb9a6b3 364 struct acpi_resource_dma *p)
1da177e4
LT		 365{
366 int i;
9dd78466 367 struct pnp_dma *dma;
1da177e4 368
50eca3eb 369 if (p->channel_count == 0)
1da177e4 370 return;
cd861280 371 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
1da177e4
LT		 372 if (!dma)
373 return;
374
9dd78466 375 for (i = 0; i < p->channel_count; i++)
1da177e4 376 dma->map |= 1 << p->channels[i];
362ea087
MK		 377
378 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
1da177e4 379
c1caf06c 380 pnp_register_dma_resource(dev, option, dma);
1da177e4
LT		 381}
382
c1caf06c
BH		 383static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
384 struct pnp_option *option,
2bb9a6b3 385 struct acpi_resource_irq *p)
1da177e4
LT		 386{
387 int i;
1c6e7d0a
BH		 388 struct pnp_irq *irq;
389
50eca3eb 390 if (p->interrupt_count == 0)
1da177e4 391 return;
cd861280 392 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 393 if (!irq)
394 return;
395
9dd78466 396 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 397 if (p->interrupts[i])
398 __set_bit(p->interrupts[i], irq->map);
cd7ec927 399 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
1da177e4 400
c1caf06c 401 pnp_register_irq_resource(dev, option, irq);
1da177e4
LT		 402}
403
c1caf06c
BH		 404static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
405 struct pnp_option *option,
2bb9a6b3 406 struct acpi_resource_extended_irq *p)
1da177e4
LT		 407{
408 int i;
1c6e7d0a 409 struct pnp_irq *irq;
1da177e4 410
50eca3eb 411 if (p->interrupt_count == 0)
1da177e4 412 return;
cd861280 413 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 414 if (!irq)
415 return;
416
9dd78466 417 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 418 if (p->interrupts[i])
419 __set_bit(p->interrupts[i], irq->map);
cd7ec927 420 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
1da177e4 421
c1caf06c 422 pnp_register_irq_resource(dev, option, irq);
1da177e4
LT		 423}
424
c1caf06c
BH		 425static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
426 struct pnp_option *option,
2bb9a6b3 427 struct acpi_resource_io *io)
1da177e4 428{
1c6e7d0a 429 struct pnp_port *port;
1da177e4 430
50eca3eb 431 if (io->address_length == 0)
1da177e4 432 return;
cd861280 433 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 434 if (!port)
435 return;
50eca3eb
BM		 436 port->min = io->minimum;
437 port->max = io->maximum;
1da177e4 438 port->align = io->alignment;
50eca3eb
BM		 439 port->size = io->address_length;
440 port->flags = ACPI_DECODE_16 == io->io_decode ?
9dd78466 441 PNP_PORT_FLAG_16BITADDR : 0;
c1caf06c 442 pnp_register_port_resource(dev, option, port);
1da177e4
LT		 443}
444
c1caf06c
BH		 445static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
446 struct pnp_option *option,
2bb9a6b3 447 struct acpi_resource_fixed_io *io)
1da177e4 448{
1c6e7d0a 449 struct pnp_port *port;
1da177e4 450
50eca3eb 451 if (io->address_length == 0)
1da177e4 452 return;
cd861280 453 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 454 if (!port)
455 return;
50eca3eb
BM		 456 port->min = port->max = io->address;
457 port->size = io->address_length;
1da177e4
LT		 458 port->align = 0;
459 port->flags = PNP_PORT_FLAG_FIXED;
c1caf06c 460 pnp_register_port_resource(dev, option, port);
1da177e4
LT		 461}
462
c1caf06c
BH		 463static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
464 struct pnp_option *option,
2bb9a6b3 465 struct acpi_resource_memory24 *p)
1da177e4 466{
1c6e7d0a 467 struct pnp_mem *mem;
1da177e4 468
50eca3eb 469 if (p->address_length == 0)
1da177e4 470 return;
cd861280 471 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 472 if (!mem)
473 return;
50eca3eb
BM		 474 mem->min = p->minimum;
475 mem->max = p->maximum;
1da177e4 476 mem->align = p->alignment;
50eca3eb 477 mem->size = p->address_length;
1da177e4 478
0897831b 479 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 480 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 481
c1caf06c 482 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 483}
484
c1caf06c
BH		 485static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
486 struct pnp_option *option,
2bb9a6b3 487 struct acpi_resource_memory32 *p)
1da177e4 488{
1c6e7d0a 489 struct pnp_mem *mem;
1da177e4 490
50eca3eb 491 if (p->address_length == 0)
1da177e4 492 return;
cd861280 493 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 494 if (!mem)
495 return;
50eca3eb
BM		 496 mem->min = p->minimum;
497 mem->max = p->maximum;
1da177e4 498 mem->align = p->alignment;
50eca3eb 499 mem->size = p->address_length;
1da177e4 500
0897831b 501 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 502 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 503
c1caf06c 504 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 505}
506
c1caf06c
BH		 507static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
508 struct pnp_option *option,
2bb9a6b3 509 struct acpi_resource_fixed_memory32 *p)
1da177e4 510{
1c6e7d0a 511 struct pnp_mem *mem;
1da177e4 512
50eca3eb 513 if (p->address_length == 0)
1da177e4 514 return;
cd861280 515 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 516 if (!mem)
517 return;
50eca3eb
BM		 518 mem->min = mem->max = p->address;
519 mem->size = p->address_length;
1da177e4
LT		 520 mem->align = 0;
521
0897831b 522 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 523 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 524
c1caf06c 525 pnp_register_mem_resource(dev, option, mem);
1da177e4
LT		 526}
527
c1caf06c
BH		 528static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
529 struct pnp_option *option,
2bb9a6b3 530 struct acpi_resource *r)
6f957eaf
BH		 531{
532 struct acpi_resource_address64 addr, *p = &addr;
533 acpi_status status;
1c6e7d0a
BH		 534 struct pnp_mem *mem;
535 struct pnp_port *port;
6f957eaf
BH		 536
537 status = acpi_resource_to_address64(r, p);
538 if (!ACPI_SUCCESS(status)) {
9dd78466
BH		 539 pnp_warn("PnPACPI: failed to convert resource type %d",
540 r->type);
6f957eaf
BH		 541 return;
542 }
543
544 if (p->address_length == 0)
545 return;
546
547 if (p->resource_type == ACPI_MEMORY_RANGE) {
cd861280 548 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
6f957eaf
BH		 549 if (!mem)
550 return;
ed03f430 551 mem->min = mem->max = p->minimum;
6f957eaf
BH		 552 mem->size = p->address_length;
553 mem->align = 0;
ed03f430 554 mem->flags = (p->info.mem.write_protect ==
9dd78466
BH		 555 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
556 : 0;
c1caf06c 557 pnp_register_mem_resource(dev, option, mem);
6f957eaf 558 } else if (p->resource_type == ACPI_IO_RANGE) {
cd861280 559 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
6f957eaf
BH		 560 if (!port)
561 return;
ed03f430 562 port->min = port->max = p->minimum;
6f957eaf
BH		 563 port->size = p->address_length;
564 port->align = 0;
565 port->flags = PNP_PORT_FLAG_FIXED;
c1caf06c 566 pnp_register_port_resource(dev, option, port);
6f957eaf
BH		 567 }
568}
569
1da177e4
LT		 570struct acpipnp_parse_option_s {
571 struct pnp_option *option;
b008b8d7 572 struct pnp_option *option_independent;
1da177e4
LT		 573 struct pnp_dev *dev;
574};
575
2bb9a6b3
TR		 576static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
577 void *data)
1da177e4
LT		 578{
579 int priority = 0;
4721a4cc 580 struct acpipnp_parse_option_s *parse_data = data;
1da177e4
LT		 581 struct pnp_dev *dev = parse_data->dev;
582 struct pnp_option *option = parse_data->option;
583
eca008c8 584 switch (res->type) {
9dd78466 585 case ACPI_RESOURCE_TYPE_IRQ:
c1caf06c 586 pnpacpi_parse_irq_option(dev, option, &res->data.irq);
9dd78466 587 break;
0af5853b 588
9dd78466 589 case ACPI_RESOURCE_TYPE_DMA:
c1caf06c 590 pnpacpi_parse_dma_option(dev, option, &res->data.dma);
9dd78466 591 break;
0af5853b 592
9dd78466
BH		 593 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
594 switch (res->data.start_dpf.compatibility_priority) {
595 case ACPI_GOOD_CONFIGURATION:
596 priority = PNP_RES_PRIORITY_PREFERRED;
1da177e4 597 break;
0af5853b 598
9dd78466
BH		 599 case ACPI_ACCEPTABLE_CONFIGURATION:
600 priority = PNP_RES_PRIORITY_ACCEPTABLE;
b008b8d7 601 break;
0af5853b 602
9dd78466
BH		 603 case ACPI_SUB_OPTIMAL_CONFIGURATION:
604 priority = PNP_RES_PRIORITY_FUNCTIONAL;
0af5853b 605 break;
9dd78466
BH		 606 default:
607 priority = PNP_RES_PRIORITY_INVALID;
0af5853b 608 break;
9dd78466 609 }
07d4e9af 610 /* TBD: Consider performance/robustness bits */
9dd78466
BH		 611 option = pnp_register_dependent_option(dev, priority);
612 if (!option)
613 return AE_ERROR;
614 parse_data->option = option;
615 break;
0af5853b 616
9dd78466
BH		 617 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
618 /*only one EndDependentFn is allowed */
619 if (!parse_data->option_independent) {
af11cb2d
BH		 620 dev_warn(&dev->dev, "more than one EndDependentFn "
621 "in _PRS\n");
9dd78466
BH		 622 return AE_ERROR;
623 }
624 parse_data->option = parse_data->option_independent;
625 parse_data->option_independent = NULL;
c1caf06c 626 dev_dbg(&dev->dev, "end dependent options\n");
9dd78466 627 break;
0af5853b 628
9dd78466 629 case ACPI_RESOURCE_TYPE_IO:
c1caf06c 630 pnpacpi_parse_port_option(dev, option, &res->data.io);
9dd78466 631 break;
0af5853b 632
9dd78466 633 case ACPI_RESOURCE_TYPE_FIXED_IO:
c1caf06c
BH		 634 pnpacpi_parse_fixed_port_option(dev, option,
635 &res->data.fixed_io);
9dd78466 636 break;
0af5853b 637
9dd78466
BH		 638 case ACPI_RESOURCE_TYPE_VENDOR:
639 case ACPI_RESOURCE_TYPE_END_TAG:
640 break;
0af5853b 641
9dd78466 642 case ACPI_RESOURCE_TYPE_MEMORY24:
c1caf06c 643 pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
9dd78466 644 break;
0af5853b 645
9dd78466 646 case ACPI_RESOURCE_TYPE_MEMORY32:
c1caf06c 647 pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
9dd78466 648 break;
0af5853b 649
9dd78466 650 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
c1caf06c 651 pnpacpi_parse_fixed_mem32_option(dev, option,
9dd78466
BH		 652 &res->data.fixed_memory32);
653 break;
0af5853b 654
9dd78466
BH		 655 case ACPI_RESOURCE_TYPE_ADDRESS16:
656 case ACPI_RESOURCE_TYPE_ADDRESS32:
657 case ACPI_RESOURCE_TYPE_ADDRESS64:
c1caf06c 658 pnpacpi_parse_address_option(dev, option, res);
9dd78466 659 break;
0af5853b 660
9dd78466
BH		 661 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
662 break;
663
664 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
c1caf06c
BH		 665 pnpacpi_parse_ext_irq_option(dev, option,
666 &res->data.extended_irq);
9dd78466
BH		 667 break;
668
669 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
670 break;
671
672 default:
af11cb2d
BH		 673 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
674 res->type);
9dd78466 675 return AE_ERROR;
1da177e4 676 }
1c6e7d0a 677
1da177e4
LT		 678 return AE_OK;
679}
680
d152cf5d 681int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
1da177e4 682{
4ab55d8d 683 acpi_handle handle = dev->data;
1da177e4
LT		 684 acpi_status status;
685 struct acpipnp_parse_option_s parse_data;
686
72dcc883
BH		 687 dev_dbg(&dev->dev, "parse resource options\n");
688
1da177e4
LT		 689 parse_data.option = pnp_register_independent_option(dev);
690 if (!parse_data.option)
d152cf5d
BH		 691 return -ENOMEM;
692
b008b8d7 693 parse_data.option_independent = parse_data.option;
1da177e4 694 parse_data.dev = dev;
50eca3eb 695 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
9dd78466 696 pnpacpi_option_resource, &parse_data);
1da177e4 697
d152cf5d
BH		 698 if (ACPI_FAILURE(status)) {
699 if (status != AE_NOT_FOUND)
700 dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
701 return -EPERM;
702 }
703 return 0;
1da177e4
LT		 704}
705
b5f2490b 706static int pnpacpi_supported_resource(struct acpi_resource *res)
1da177e4 707{
eca008c8 708 switch (res->type) {
50eca3eb 709 case ACPI_RESOURCE_TYPE_IRQ:
50eca3eb
BM		 710 case ACPI_RESOURCE_TYPE_DMA:
711 case ACPI_RESOURCE_TYPE_IO:
712 case ACPI_RESOURCE_TYPE_FIXED_IO:
713 case ACPI_RESOURCE_TYPE_MEMORY24:
714 case ACPI_RESOURCE_TYPE_MEMORY32:
715 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
50eca3eb
BM		 716 case ACPI_RESOURCE_TYPE_ADDRESS16:
717 case ACPI_RESOURCE_TYPE_ADDRESS32:
718 case ACPI_RESOURCE_TYPE_ADDRESS64:
0af5853b 719 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
b5f2490b 720 return 1;
1da177e4 721 }
b5f2490b
BH		 722 return 0;
723}
724
725/*
726 * Set resource
727 */
728static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
9dd78466 729 void *data)
b5f2490b 730{
4721a4cc 731 int *res_cnt = data;
b5f2490b
BH		 732
733 if (pnpacpi_supported_resource(res))
734 (*res_cnt)++;
1da177e4
LT		 735 return AE_OK;
736}
737
1c6e7d0a 738static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
1da177e4 739{
4721a4cc 740 struct acpi_resource **resource = data;
b5f2490b
BH		 741
742 if (pnpacpi_supported_resource(res)) {
eca008c8 743 (*resource)->type = res->type;
b5f2490b 744 (*resource)->length = sizeof(struct acpi_resource);
1da177e4 745 (*resource)++;
1da177e4
LT		 746 }
747
748 return AE_OK;
749}
750
cdef6254 751int pnpacpi_build_resource_template(struct pnp_dev *dev,
9dd78466 752 struct acpi_buffer *buffer)
1da177e4 753{
cdef6254 754 acpi_handle handle = dev->data;
1da177e4
LT		 755 struct acpi_resource *resource;
756 int res_cnt = 0;
757 acpi_status status;
758
50eca3eb 759 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 760 pnpacpi_count_resources, &res_cnt);
1da177e4 761 if (ACPI_FAILURE(status)) {
d152cf5d 762 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
1da177e4
LT		 763 return -EINVAL;
764 }
765 if (!res_cnt)
766 return -EINVAL;
767 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
cd861280 768 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
1da177e4
LT		 769 if (!buffer->pointer)
770 return -ENOMEM;
72dcc883 771
1da177e4 772 resource = (struct acpi_resource *)buffer->pointer;
50eca3eb 773 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 774 pnpacpi_type_resources, &resource);
1da177e4
LT		 775 if (ACPI_FAILURE(status)) {
776 kfree(buffer->pointer);
d152cf5d 777 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
1da177e4
LT		 778 return -EINVAL;
779 }
780 /* resource will pointer the end resource now */
50eca3eb 781 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
1da177e4
LT		 782
783 return 0;
784}
785
72dcc883
BH		 786static void pnpacpi_encode_irq(struct pnp_dev *dev,
787 struct acpi_resource *resource,
9dd78466 788 struct resource *p)
1da177e4 789{
9570a20e 790 struct acpi_resource_irq *irq = &resource->data.irq;
50eca3eb 791 int triggering, polarity;
1c6e7d0a
BH		 792
793 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 794 irq->triggering = triggering;
795 irq->polarity = polarity;
50eca3eb 796 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 797 irq->sharable = ACPI_EXCLUSIVE;
1da177e4 798 else
9570a20e
BH		 799 irq->sharable = ACPI_SHARED;
800 irq->interrupt_count = 1;
801 irq->interrupts[0] = p->start;
72dcc883
BH		 802
803 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
804 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
805 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
806 irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
1da177e4
LT		 807}
808
72dcc883
BH		 809static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
810 struct acpi_resource *resource,
9dd78466 811 struct resource *p)
1da177e4 812{
9570a20e 813 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
50eca3eb 814 int triggering, polarity;
1c6e7d0a
BH		 815
816 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 817 extended_irq->producer_consumer = ACPI_CONSUMER;
818 extended_irq->triggering = triggering;
819 extended_irq->polarity = polarity;
50eca3eb 820 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 821 extended_irq->sharable = ACPI_EXCLUSIVE;
1da177e4 822 else
9570a20e
BH		 823 extended_irq->sharable = ACPI_SHARED;
824 extended_irq->interrupt_count = 1;
825 extended_irq->interrupts[0] = p->start;
72dcc883
BH		 826
827 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
828 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
829 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
830 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
1da177e4
LT		 831}
832
72dcc883
BH		 833static void pnpacpi_encode_dma(struct pnp_dev *dev,
834 struct acpi_resource *resource,
9dd78466 835 struct resource *p)
1da177e4 836{
9570a20e
BH		 837 struct acpi_resource_dma *dma = &resource->data.dma;
838
1da177e4 839 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
ccc4c7bb 840 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
9dd78466 841 case IORESOURCE_DMA_TYPEA:
9570a20e 842 dma->type = ACPI_TYPE_A;
9dd78466
BH		 843 break;
844 case IORESOURCE_DMA_TYPEB:
9570a20e 845 dma->type = ACPI_TYPE_B;
9dd78466
BH		 846 break;
847 case IORESOURCE_DMA_TYPEF:
9570a20e 848 dma->type = ACPI_TYPE_F;
9dd78466
BH		 849 break;
850 default:
9570a20e 851 dma->type = ACPI_COMPATIBILITY;
ccc4c7bb
VP		 852 }
853
854 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
9dd78466 855 case IORESOURCE_DMA_8BIT:
9570a20e 856 dma->transfer = ACPI_TRANSFER_8;
9dd78466
BH		 857 break;
858 case IORESOURCE_DMA_8AND16BIT:
9570a20e 859 dma->transfer = ACPI_TRANSFER_8_16;
9dd78466
BH		 860 break;
861 default:
9570a20e 862 dma->transfer = ACPI_TRANSFER_16;
ccc4c7bb
VP		 863 }
864
9570a20e
BH		 865 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
866 dma->channel_count = 1;
867 dma->channels[0] = p->start;
72dcc883
BH		 868
869 dev_dbg(&dev->dev, " encode dma %d "
870 "type %#x transfer %#x master %d\n",
871 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1da177e4
LT		 872}
873
72dcc883
BH		 874static void pnpacpi_encode_io(struct pnp_dev *dev,
875 struct acpi_resource *resource,
9dd78466 876 struct resource *p)
1da177e4 877{
9570a20e
BH		 878 struct acpi_resource_io *io = &resource->data.io;
879
1da177e4 880 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
9570a20e 881 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
9dd78466 882 ACPI_DECODE_16 : ACPI_DECODE_10;
9570a20e
BH		 883 io->minimum = p->start;
884 io->maximum = p->end;
885 io->alignment = 0; /* Correct? */
886 io->address_length = p->end - p->start + 1;
72dcc883
BH		 887
888 dev_dbg(&dev->dev, " encode io %#llx-%#llx decode %#x\n",
889 (unsigned long long) p->start, (unsigned long long) p->end,
890 io->io_decode);
1da177e4
LT		 891}
892
72dcc883
BH		 893static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
894 struct acpi_resource *resource,
9dd78466 895 struct resource *p)
1da177e4 896{
9570a20e
BH		 897 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
898
899 fixed_io->address = p->start;
900 fixed_io->address_length = p->end - p->start + 1;
72dcc883
BH		 901
902 dev_dbg(&dev->dev, " encode fixed_io %#llx-%#llx\n",
903 (unsigned long long) p->start, (unsigned long long) p->end);
1da177e4
LT		 904}
905
72dcc883
BH		 906static void pnpacpi_encode_mem24(struct pnp_dev *dev,
907 struct acpi_resource *resource,
9dd78466 908 struct resource *p)
1da177e4 909{
9570a20e
BH		 910 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
911
1da177e4 912 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
9570a20e 913 memory24->write_protect =
9dd78466
BH		 914 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
915 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 916 memory24->minimum = p->start;
917 memory24->maximum = p->end;
918 memory24->alignment = 0;
919 memory24->address_length = p->end - p->start + 1;
72dcc883
BH		 920
921 dev_dbg(&dev->dev, " encode mem24 %#llx-%#llx write_protect %#x\n",
922 (unsigned long long) p->start, (unsigned long long) p->end,
923 memory24->write_protect);
1da177e4
LT		 924}
925
72dcc883
BH		 926static void pnpacpi_encode_mem32(struct pnp_dev *dev,
927 struct acpi_resource *resource,
9dd78466 928 struct resource *p)
1da177e4 929{
9570a20e
BH		 930 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
931
932 memory32->write_protect =
9dd78466
BH		 933 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
934 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 935 memory32->minimum = p->start;
936 memory32->maximum = p->end;
937 memory32->alignment = 0;
938 memory32->address_length = p->end - p->start + 1;
72dcc883
BH		 939
940 dev_dbg(&dev->dev, " encode mem32 %#llx-%#llx write_protect %#x\n",
941 (unsigned long long) p->start, (unsigned long long) p->end,
942 memory32->write_protect);
1da177e4
LT		 943}
944
72dcc883
BH		 945static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
946 struct acpi_resource *resource,
9dd78466 947 struct resource *p)
1da177e4 948{
9570a20e
BH		 949 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
950
951 fixed_memory32->write_protect =
9dd78466
BH		 952 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
953 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 954 fixed_memory32->address = p->start;
955 fixed_memory32->address_length = p->end - p->start + 1;
72dcc883
BH		 956
957 dev_dbg(&dev->dev, " encode fixed_mem32 %#llx-%#llx "
958 "write_protect %#x\n",
959 (unsigned long long) p->start, (unsigned long long) p->end,
960 fixed_memory32->write_protect);
1da177e4
LT		 961}
962
4ab55d8d 963int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1da177e4
LT		 964{
965 int i = 0;
966 /* pnpacpi_build_resource_template allocates extra mem */
9dd78466 967 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
4721a4cc 968 struct acpi_resource *resource = buffer->pointer;
1da177e4
LT		 969 int port = 0, irq = 0, dma = 0, mem = 0;
970
72dcc883 971 dev_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1da177e4 972 while (i < res_cnt) {
9dd78466 973 switch (resource->type) {
50eca3eb 974 case ACPI_RESOURCE_TYPE_IRQ:
72dcc883 975 pnpacpi_encode_irq(dev, resource,
7e2cf31f 976 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1da177e4
LT		 977 irq++;
978 break;
979
50eca3eb 980 case ACPI_RESOURCE_TYPE_DMA:
72dcc883 981 pnpacpi_encode_dma(dev, resource,
7e2cf31f 982 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1c6e7d0a 983 dma++;
1da177e4 984 break;
50eca3eb 985 case ACPI_RESOURCE_TYPE_IO:
72dcc883 986 pnpacpi_encode_io(dev, resource,
7e2cf31f 987 pnp_get_resource(dev, IORESOURCE_IO, port));
1c6e7d0a 988 port++;
1da177e4 989 break;
50eca3eb 990 case ACPI_RESOURCE_TYPE_FIXED_IO:
72dcc883 991 pnpacpi_encode_fixed_io(dev, resource,
7e2cf31f 992 pnp_get_resource(dev, IORESOURCE_IO, port));
1c6e7d0a 993 port++;
1da177e4 994 break;
50eca3eb 995 case ACPI_RESOURCE_TYPE_MEMORY24:
72dcc883 996 pnpacpi_encode_mem24(dev, resource,
7e2cf31f 997 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 998 mem++;
1da177e4 999 break;
50eca3eb 1000 case ACPI_RESOURCE_TYPE_MEMORY32:
72dcc883 1001 pnpacpi_encode_mem32(dev, resource,
7e2cf31f 1002 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 1003 mem++;
1da177e4 1004 break;
50eca3eb 1005 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
72dcc883 1006 pnpacpi_encode_fixed_mem32(dev, resource,
7e2cf31f 1007 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1c6e7d0a 1008 mem++;
1da177e4 1009 break;
0af5853b 1010 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
72dcc883 1011 pnpacpi_encode_ext_irq(dev, resource,
7e2cf31f 1012 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
0af5853b
LB		 1013 irq++;
1014 break;
1015 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1016 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1017 case ACPI_RESOURCE_TYPE_VENDOR:
1018 case ACPI_RESOURCE_TYPE_END_TAG:
1019 case ACPI_RESOURCE_TYPE_ADDRESS16:
1020 case ACPI_RESOURCE_TYPE_ADDRESS32:
1021 case ACPI_RESOURCE_TYPE_ADDRESS64:
1022 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1023 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
9dd78466 1024 default: /* other type */
af11cb2d
BH		 1025 dev_warn(&dev->dev, "can't encode unknown resource "
1026 "type %d\n", resource->type);
1da177e4
LT		 1027 return -EINVAL;
1028 }
1c6e7d0a
BH		 1029 resource++;
1030 i++;
1da177e4
LT		 1031 }
1032 return 0;
1033}
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