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PNPACPI: hoist dma_flags() out of pnpacpi_parse_allocated_dmaresource()
[deliverable/linux.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 36{
50eca3eb 37 if (triggering == ACPI_LEVEL_SENSITIVE) {
1c6e7d0a 38 if (polarity == ACPI_ACTIVE_LOW)
4cec086b 39 return IORESOURCE_IRQ_LOWLEVEL;
1da177e4 40 else
4cec086b 41 return IORESOURCE_IRQ_HIGHLEVEL;
9dd78466 42 } else {
1c6e7d0a 43 if (polarity == ACPI_ACTIVE_LOW)
4cec086b 44 return IORESOURCE_IRQ_LOWEDGE;
1da177e4 45 else
4cec086b 46 return IORESOURCE_IRQ_HIGHEDGE;
1da177e4 47 }
1da177e4
LT		 48}
49
50eca3eb 50static void decode_irq_flags(int flag, int *triggering, int *polarity)
1da177e4
LT		 51{
52 switch (flag) {
53 case IORESOURCE_IRQ_LOWLEVEL:
50eca3eb
BM		 54 *triggering = ACPI_LEVEL_SENSITIVE;
55 *polarity = ACPI_ACTIVE_LOW;
1da177e4 56 break;
1c6e7d0a 57 case IORESOURCE_IRQ_HIGHLEVEL:
50eca3eb
BM		 58 *triggering = ACPI_LEVEL_SENSITIVE;
59 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 60 break;
61 case IORESOURCE_IRQ_LOWEDGE:
50eca3eb
BM		 62 *triggering = ACPI_EDGE_SENSITIVE;
63 *polarity = ACPI_ACTIVE_LOW;
1da177e4
LT		 64 break;
65 case IORESOURCE_IRQ_HIGHEDGE:
50eca3eb
BM		 66 *triggering = ACPI_EDGE_SENSITIVE;
67 *polarity = ACPI_ACTIVE_HIGH;
1da177e4
LT		 68 break;
69 }
70}
71
07d4e9af
BH		 72static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
73 u32 gsi, int triggering,
74 int polarity, int shareable)
1da177e4
LT		 75{
76 int i = 0;
dbed12da 77 int irq;
61fd47e0 78 int p, t;
66a21736 79 static unsigned char warned;
dbed12da
BH		 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++;
0093cb11
LB		 87 if (i >= PNP_MAX_IRQ) {
88 if (!warned) {
89 printk(KERN_WARNING "pnpacpi: exceeded the max number"
90 " of IRQ resources: %d\n", PNP_MAX_IRQ);
91 warned = 1;
92 }
dbed12da 93 return;
a7839e96 94 }
61fd47e0
SL		 95 /*
96 * in IO-APIC mode, use overrided attribute. Two reasons:
97 * 1. BIOS bug in DSDT
98 * 2. BIOS uses IO-APIC mode Interrupt Source Override
99 */
100 if (!acpi_get_override_irq(gsi, &t, &p)) {
101 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
102 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
103
104 if (triggering != t || polarity != p) {
105 pnp_warn("IRQ %d override to %s, %s",
106 gsi, t ? "edge":"level", p ? "low":"high");
107 triggering = t;
108 polarity = p;
109 }
110 }
111
9dd78466 112 res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
362ea087 113 res->irq_resource[i].flags |= irq_flags(triggering, polarity);
50eca3eb 114 irq = acpi_register_gsi(gsi, triggering, polarity);
dbed12da
BH		 115 if (irq < 0) {
116 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
117 return;
1da177e4 118 }
dbed12da 119
c32928c5
BH		 120 if (shareable)
121 res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
122
dbed12da
BH		 123 res->irq_resource[i].start = irq;
124 res->irq_resource[i].end = irq;
125 pcibios_penalize_isa_irq(irq, 1);
1da177e4
LT		 126}
127
362ea087
MK		 128static int dma_flags(int type, int bus_master, int transfer)
129{
130 int flags = 0;
131
132 if (bus_master)
133 flags |= IORESOURCE_DMA_MASTER;
134 switch (type) {
135 case ACPI_COMPATIBILITY:
136 flags |= IORESOURCE_DMA_COMPATIBLE;
137 break;
138 case ACPI_TYPE_A:
139 flags |= IORESOURCE_DMA_TYPEA;
140 break;
141 case ACPI_TYPE_B:
142 flags |= IORESOURCE_DMA_TYPEB;
143 break;
144 case ACPI_TYPE_F:
145 flags |= IORESOURCE_DMA_TYPEF;
146 break;
147 default:
148 /* Set a default value ? */
149 flags |= IORESOURCE_DMA_COMPATIBLE;
150 pnp_err("Invalid DMA type");
151 }
152 switch (transfer) {
153 case ACPI_TRANSFER_8:
154 flags |= IORESOURCE_DMA_8BIT;
155 break;
156 case ACPI_TRANSFER_8_16:
157 flags |= IORESOURCE_DMA_8AND16BIT;
158 break;
159 case ACPI_TRANSFER_16:
160 flags |= IORESOURCE_DMA_16BIT;
161 break;
162 default:
163 /* Set a default value ? */
164 flags |= IORESOURCE_DMA_8AND16BIT;
165 pnp_err("Invalid DMA transfer type");
166 }
167
168 return flags;
169}
170
07d4e9af 171static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
bb84b41d 172 u32 dma, int flags)
1da177e4
LT		 173{
174 int i = 0;
66a21736 175 static unsigned char warned;
07d4e9af 176
0dec63ba 177 while (i < PNP_MAX_DMA &&
9dd78466 178 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
1da177e4
LT		 179 i++;
180 if (i < PNP_MAX_DMA) {
9dd78466 181 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
bb84b41d 182 res->dma_resource[i].flags |= flags;
1da177e4
LT		 183 if (dma == -1) {
184 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
185 return;
186 }
dbed12da
BH		 187 res->dma_resource[i].start = dma;
188 res->dma_resource[i].end = dma;
66a21736 189 } else if (!warned) {
33fd7afd 190 printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
a7839e96 191 "resources: %d \n", PNP_MAX_DMA);
66a21736 192 warned = 1;
1da177e4
LT		 193 }
194}
195
07d4e9af
BH		 196static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
197 u64 io, u64 len, int io_decode)
1da177e4
LT		 198{
199 int i = 0;
66a21736 200 static unsigned char warned;
07d4e9af 201
1da177e4 202 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 203 i < PNP_MAX_PORT)
1da177e4
LT		 204 i++;
205 if (i < PNP_MAX_PORT) {
9dd78466 206 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
362ea087
MK		 207 if (io_decode == ACPI_DECODE_16)
208 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
9dd78466 209 if (len <= 0 || (io + len - 1) >= 0x10003) {
1da177e4
LT		 210 res->port_resource[i].flags |= IORESOURCE_DISABLED;
211 return;
212 }
dbed12da
BH		 213 res->port_resource[i].start = io;
214 res->port_resource[i].end = io + len - 1;
66a21736 215 } else if (!warned) {
33fd7afd 216 printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
a7839e96 217 "resources: %d \n", PNP_MAX_PORT);
efe7cf2d 218 warned = 1;
1da177e4
LT		 219 }
220}
221
07d4e9af
BH		 222static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
223 u64 mem, u64 len,
224 int write_protect)
1da177e4
LT		 225{
226 int i = 0;
66a21736 227 static unsigned char warned;
07d4e9af 228
1da177e4 229 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 230 (i < PNP_MAX_MEM))
1da177e4
LT		 231 i++;
232 if (i < PNP_MAX_MEM) {
9dd78466 233 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
1da177e4
LT		 234 if (len <= 0) {
235 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
236 return;
237 }
9dd78466 238 if (write_protect == ACPI_READ_WRITE_MEMORY)
362ea087
MK		 239 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
240
dbed12da
BH		 241 res->mem_resource[i].start = mem;
242 res->mem_resource[i].end = mem + len - 1;
66a21736 243 } else if (!warned) {
33fd7afd 244 printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
a7839e96 245 "resources: %d\n", PNP_MAX_MEM);
efe7cf2d 246 warned = 1;
1da177e4
LT		 247 }
248}
249
07d4e9af
BH		 250static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
251 struct acpi_resource *res)
1acfb7f2
BH		 252{
253 struct acpi_resource_address64 addr, *p = &addr;
254 acpi_status status;
255
256 status = acpi_resource_to_address64(res, p);
257 if (!ACPI_SUCCESS(status)) {
258 pnp_warn("PnPACPI: failed to convert resource type %d",
9dd78466 259 res->type);
1acfb7f2
BH		 260 return;
261 }
262
2b8de5f5 263 if (p->producer_consumer == ACPI_PRODUCER)
264 return;
265
1acfb7f2
BH		 266 if (p->resource_type == ACPI_MEMORY_RANGE)
267 pnpacpi_parse_allocated_memresource(res_table,
07d4e9af
BH		 268 p->minimum, p->address_length,
269 p->info.mem.write_protect);
1acfb7f2
BH		 270 else if (p->resource_type == ACPI_IO_RANGE)
271 pnpacpi_parse_allocated_ioresource(res_table,
07d4e9af
BH		 272 p->minimum, p->address_length,
273 p->granularity == 0xfff ? ACPI_DECODE_10 :
274 ACPI_DECODE_16);
1acfb7f2 275}
1da177e4
LT		 276
277static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
9dd78466 278 void *data)
1da177e4 279{
4721a4cc 280 struct pnp_resource_table *res_table = data;
9570a20e
BH		 281 struct acpi_resource_irq *irq;
282 struct acpi_resource_dma *dma;
283 struct acpi_resource_io *io;
284 struct acpi_resource_fixed_io *fixed_io;
285 struct acpi_resource_memory24 *memory24;
286 struct acpi_resource_memory32 *memory32;
287 struct acpi_resource_fixed_memory32 *fixed_memory32;
288 struct acpi_resource_extended_irq *extended_irq;
dbed12da 289 int i;
1da177e4 290
eca008c8 291 switch (res->type) {
50eca3eb 292 case ACPI_RESOURCE_TYPE_IRQ:
dbed12da
BH		 293 /*
294 * Per spec, only one interrupt per descriptor is allowed in
295 * _CRS, but some firmware violates this, so parse them all.
296 */
9570a20e
BH		 297 irq = &res->data.irq;
298 for (i = 0; i < irq->interrupt_count; i++) {
dbed12da 299 pnpacpi_parse_allocated_irqresource(res_table,
9570a20e
BH		 300 irq->interrupts[i],
301 irq->triggering,
302 irq->polarity,
303 irq->sharable);
1da177e4
LT		 304 }
305 break;
306
50eca3eb 307 case ACPI_RESOURCE_TYPE_DMA:
9570a20e
BH		 308 dma = &res->data.dma;
309 if (dma->channel_count > 0)
50eca3eb 310 pnpacpi_parse_allocated_dmaresource(res_table,
9570a20e 311 dma->channels[0],
bb84b41d
BH		 312 dma_flags(dma->type, dma->bus_master,
313 dma->transfer));
1da177e4 314 break;
0af5853b 315
50eca3eb 316 case ACPI_RESOURCE_TYPE_IO:
9570a20e 317 io = &res->data.io;
50eca3eb 318 pnpacpi_parse_allocated_ioresource(res_table,
9570a20e
BH		 319 io->minimum,
320 io->address_length,
321 io->io_decode);
1da177e4 322 break;
0af5853b
LB		 323
324 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
325 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
326 break;
327
50eca3eb 328 case ACPI_RESOURCE_TYPE_FIXED_IO:
9570a20e 329 fixed_io = &res->data.fixed_io;
50eca3eb 330 pnpacpi_parse_allocated_ioresource(res_table,
9570a20e
BH		 331 fixed_io->address,
332 fixed_io->address_length,
07d4e9af 333 ACPI_DECODE_10);
1da177e4 334 break;
0af5853b
LB		 335
336 case ACPI_RESOURCE_TYPE_VENDOR:
337 break;
338
339 case ACPI_RESOURCE_TYPE_END_TAG:
340 break;
341
50eca3eb 342 case ACPI_RESOURCE_TYPE_MEMORY24:
9570a20e 343 memory24 = &res->data.memory24;
50eca3eb 344 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 345 memory24->minimum,
346 memory24->address_length,
347 memory24->write_protect);
1da177e4 348 break;
50eca3eb 349 case ACPI_RESOURCE_TYPE_MEMORY32:
9570a20e 350 memory32 = &res->data.memory32;
50eca3eb 351 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 352 memory32->minimum,
353 memory32->address_length,
354 memory32->write_protect);
1da177e4 355 break;
50eca3eb 356 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
9570a20e 357 fixed_memory32 = &res->data.fixed_memory32;
50eca3eb 358 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 359 fixed_memory32->address,
360 fixed_memory32->address_length,
361 fixed_memory32->write_protect);
1da177e4 362 break;
50eca3eb 363 case ACPI_RESOURCE_TYPE_ADDRESS16:
50eca3eb 364 case ACPI_RESOURCE_TYPE_ADDRESS32:
50eca3eb 365 case ACPI_RESOURCE_TYPE_ADDRESS64:
1acfb7f2 366 pnpacpi_parse_allocated_address_space(res_table, res);
1da177e4 367 break;
0af5853b
LB		 368
369 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
2b8de5f5 370 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
371 return AE_OK;
0af5853b
LB		 372 break;
373
374 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
9570a20e
BH		 375 extended_irq = &res->data.extended_irq;
376 if (extended_irq->producer_consumer == ACPI_PRODUCER)
2b8de5f5 377 return AE_OK;
378
9570a20e 379 for (i = 0; i < extended_irq->interrupt_count; i++) {
0af5853b 380 pnpacpi_parse_allocated_irqresource(res_table,
9570a20e
BH		 381 extended_irq->interrupts[i],
382 extended_irq->triggering,
383 extended_irq->polarity,
384 extended_irq->sharable);
0af5853b
LB		 385 }
386 break;
387
388 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1da177e4 389 break;
0af5853b 390
1da177e4 391 default:
eca008c8 392 pnp_warn("PnPACPI: unknown resource type %d", res->type);
1da177e4
LT		 393 return AE_ERROR;
394 }
1c6e7d0a 395
1da177e4
LT		 396 return AE_OK;
397}
398
9dd78466
BH		 399acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
400 struct pnp_resource_table * res)
1da177e4
LT		 401{
402 /* Blank the resource table values */
403 pnp_init_resource_table(res);
404
9dd78466
BH		 405 return acpi_walk_resources(handle, METHOD_NAME__CRS,
406 pnpacpi_allocated_resource, res);
1da177e4
LT		 407}
408
2bb9a6b3
TR		 409static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
410 struct acpi_resource_dma *p)
1da177e4
LT		 411{
412 int i;
9dd78466 413 struct pnp_dma *dma;
1da177e4 414
50eca3eb 415 if (p->channel_count == 0)
1da177e4 416 return;
cd861280 417 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
1da177e4
LT		 418 if (!dma)
419 return;
420
9dd78466 421 for (i = 0; i < p->channel_count; i++)
1da177e4 422 dma->map |= 1 << p->channels[i];
362ea087
MK		 423
424 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
1da177e4 425
1c6e7d0a 426 pnp_register_dma_resource(option, dma);
1da177e4
LT		 427}
428
2bb9a6b3
TR		 429static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
430 struct acpi_resource_irq *p)
1da177e4
LT		 431{
432 int i;
1c6e7d0a
BH		 433 struct pnp_irq *irq;
434
50eca3eb 435 if (p->interrupt_count == 0)
1da177e4 436 return;
cd861280 437 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 438 if (!irq)
439 return;
440
9dd78466 441 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 442 if (p->interrupts[i])
443 __set_bit(p->interrupts[i], irq->map);
50eca3eb 444 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 445
446 pnp_register_irq_resource(option, irq);
1da177e4
LT		 447}
448
2bb9a6b3
TR		 449static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
450 struct acpi_resource_extended_irq *p)
1da177e4
LT		 451{
452 int i;
1c6e7d0a 453 struct pnp_irq *irq;
1da177e4 454
50eca3eb 455 if (p->interrupt_count == 0)
1da177e4 456 return;
cd861280 457 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 458 if (!irq)
459 return;
460
9dd78466 461 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 462 if (p->interrupts[i])
463 __set_bit(p->interrupts[i], irq->map);
50eca3eb 464 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 465
466 pnp_register_irq_resource(option, irq);
1da177e4
LT		 467}
468
2bb9a6b3
TR		 469static __init void pnpacpi_parse_port_option(struct pnp_option *option,
470 struct acpi_resource_io *io)
1da177e4 471{
1c6e7d0a 472 struct pnp_port *port;
1da177e4 473
50eca3eb 474 if (io->address_length == 0)
1da177e4 475 return;
cd861280 476 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 477 if (!port)
478 return;
50eca3eb
BM		 479 port->min = io->minimum;
480 port->max = io->maximum;
1da177e4 481 port->align = io->alignment;
50eca3eb
BM		 482 port->size = io->address_length;
483 port->flags = ACPI_DECODE_16 == io->io_decode ?
9dd78466 484 PNP_PORT_FLAG_16BITADDR : 0;
1c6e7d0a 485 pnp_register_port_resource(option, port);
1da177e4
LT		 486}
487
2bb9a6b3
TR		 488static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
489 struct acpi_resource_fixed_io *io)
1da177e4 490{
1c6e7d0a 491 struct pnp_port *port;
1da177e4 492
50eca3eb 493 if (io->address_length == 0)
1da177e4 494 return;
cd861280 495 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 496 if (!port)
497 return;
50eca3eb
BM		 498 port->min = port->max = io->address;
499 port->size = io->address_length;
1da177e4
LT		 500 port->align = 0;
501 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 502 pnp_register_port_resource(option, port);
1da177e4
LT		 503}
504
2bb9a6b3
TR		 505static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
506 struct acpi_resource_memory24 *p)
1da177e4 507{
1c6e7d0a 508 struct pnp_mem *mem;
1da177e4 509
50eca3eb 510 if (p->address_length == 0)
1da177e4 511 return;
cd861280 512 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 513 if (!mem)
514 return;
50eca3eb
BM		 515 mem->min = p->minimum;
516 mem->max = p->maximum;
1da177e4 517 mem->align = p->alignment;
50eca3eb 518 mem->size = p->address_length;
1da177e4 519
0897831b 520 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 521 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 522
1c6e7d0a 523 pnp_register_mem_resource(option, mem);
1da177e4
LT		 524}
525
2bb9a6b3
TR		 526static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
527 struct acpi_resource_memory32 *p)
1da177e4 528{
1c6e7d0a 529 struct pnp_mem *mem;
1da177e4 530
50eca3eb 531 if (p->address_length == 0)
1da177e4 532 return;
cd861280 533 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 534 if (!mem)
535 return;
50eca3eb
BM		 536 mem->min = p->minimum;
537 mem->max = p->maximum;
1da177e4 538 mem->align = p->alignment;
50eca3eb 539 mem->size = p->address_length;
1da177e4 540
0897831b 541 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 542 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 543
1c6e7d0a 544 pnp_register_mem_resource(option, mem);
1da177e4
LT		 545}
546
2bb9a6b3
TR		 547static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
548 struct acpi_resource_fixed_memory32 *p)
1da177e4 549{
1c6e7d0a 550 struct pnp_mem *mem;
1da177e4 551
50eca3eb 552 if (p->address_length == 0)
1da177e4 553 return;
cd861280 554 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 555 if (!mem)
556 return;
50eca3eb
BM		 557 mem->min = mem->max = p->address;
558 mem->size = p->address_length;
1da177e4
LT		 559 mem->align = 0;
560
0897831b 561 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 562 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 563
1c6e7d0a 564 pnp_register_mem_resource(option, mem);
1da177e4
LT		 565}
566
2bb9a6b3
TR		 567static __init void pnpacpi_parse_address_option(struct pnp_option *option,
568 struct acpi_resource *r)
6f957eaf
BH		 569{
570 struct acpi_resource_address64 addr, *p = &addr;
571 acpi_status status;
1c6e7d0a
BH		 572 struct pnp_mem *mem;
573 struct pnp_port *port;
6f957eaf
BH		 574
575 status = acpi_resource_to_address64(r, p);
576 if (!ACPI_SUCCESS(status)) {
9dd78466
BH		 577 pnp_warn("PnPACPI: failed to convert resource type %d",
578 r->type);
6f957eaf
BH		 579 return;
580 }
581
582 if (p->address_length == 0)
583 return;
584
585 if (p->resource_type == ACPI_MEMORY_RANGE) {
cd861280 586 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
6f957eaf
BH		 587 if (!mem)
588 return;
ed03f430 589 mem->min = mem->max = p->minimum;
6f957eaf
BH		 590 mem->size = p->address_length;
591 mem->align = 0;
ed03f430 592 mem->flags = (p->info.mem.write_protect ==
9dd78466
BH		 593 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
594 : 0;
1c6e7d0a 595 pnp_register_mem_resource(option, mem);
6f957eaf 596 } else if (p->resource_type == ACPI_IO_RANGE) {
cd861280 597 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
6f957eaf
BH		 598 if (!port)
599 return;
ed03f430 600 port->min = port->max = p->minimum;
6f957eaf
BH		 601 port->size = p->address_length;
602 port->align = 0;
603 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 604 pnp_register_port_resource(option, port);
6f957eaf
BH		 605 }
606}
607
1da177e4
LT		 608struct acpipnp_parse_option_s {
609 struct pnp_option *option;
b008b8d7 610 struct pnp_option *option_independent;
1da177e4
LT		 611 struct pnp_dev *dev;
612};
613
2bb9a6b3
TR		 614static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
615 void *data)
1da177e4
LT		 616{
617 int priority = 0;
4721a4cc 618 struct acpipnp_parse_option_s *parse_data = data;
1da177e4
LT		 619 struct pnp_dev *dev = parse_data->dev;
620 struct pnp_option *option = parse_data->option;
621
eca008c8 622 switch (res->type) {
9dd78466
BH		 623 case ACPI_RESOURCE_TYPE_IRQ:
624 pnpacpi_parse_irq_option(option, &res->data.irq);
625 break;
0af5853b 626
9dd78466
BH		 627 case ACPI_RESOURCE_TYPE_DMA:
628 pnpacpi_parse_dma_option(option, &res->data.dma);
629 break;
0af5853b 630
9dd78466
BH		 631 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
632 switch (res->data.start_dpf.compatibility_priority) {
633 case ACPI_GOOD_CONFIGURATION:
634 priority = PNP_RES_PRIORITY_PREFERRED;
1da177e4 635 break;
0af5853b 636
9dd78466
BH		 637 case ACPI_ACCEPTABLE_CONFIGURATION:
638 priority = PNP_RES_PRIORITY_ACCEPTABLE;
b008b8d7 639 break;
0af5853b 640
9dd78466
BH		 641 case ACPI_SUB_OPTIMAL_CONFIGURATION:
642 priority = PNP_RES_PRIORITY_FUNCTIONAL;
0af5853b 643 break;
9dd78466
BH		 644 default:
645 priority = PNP_RES_PRIORITY_INVALID;
0af5853b 646 break;
9dd78466 647 }
07d4e9af 648 /* TBD: Consider performance/robustness bits */
9dd78466
BH		 649 option = pnp_register_dependent_option(dev, priority);
650 if (!option)
651 return AE_ERROR;
652 parse_data->option = option;
653 break;
0af5853b 654
9dd78466
BH		 655 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
656 /*only one EndDependentFn is allowed */
657 if (!parse_data->option_independent) {
658 pnp_warn("PnPACPI: more than one EndDependentFn");
659 return AE_ERROR;
660 }
661 parse_data->option = parse_data->option_independent;
662 parse_data->option_independent = NULL;
663 break;
0af5853b 664
9dd78466
BH		 665 case ACPI_RESOURCE_TYPE_IO:
666 pnpacpi_parse_port_option(option, &res->data.io);
667 break;
0af5853b 668
9dd78466
BH		 669 case ACPI_RESOURCE_TYPE_FIXED_IO:
670 pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
671 break;
0af5853b 672
9dd78466
BH		 673 case ACPI_RESOURCE_TYPE_VENDOR:
674 case ACPI_RESOURCE_TYPE_END_TAG:
675 break;
0af5853b 676
9dd78466
BH		 677 case ACPI_RESOURCE_TYPE_MEMORY24:
678 pnpacpi_parse_mem24_option(option, &res->data.memory24);
679 break;
0af5853b 680
9dd78466
BH		 681 case ACPI_RESOURCE_TYPE_MEMORY32:
682 pnpacpi_parse_mem32_option(option, &res->data.memory32);
683 break;
0af5853b 684
9dd78466
BH		 685 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
686 pnpacpi_parse_fixed_mem32_option(option,
687 &res->data.fixed_memory32);
688 break;
0af5853b 689
9dd78466
BH		 690 case ACPI_RESOURCE_TYPE_ADDRESS16:
691 case ACPI_RESOURCE_TYPE_ADDRESS32:
692 case ACPI_RESOURCE_TYPE_ADDRESS64:
693 pnpacpi_parse_address_option(option, res);
694 break;
0af5853b 695
9dd78466
BH		 696 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
697 break;
698
699 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
700 pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
701 break;
702
703 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
704 break;
705
706 default:
707 pnp_warn("PnPACPI: unknown resource type %d", res->type);
708 return AE_ERROR;
1da177e4 709 }
1c6e7d0a 710
1da177e4
LT		 711 return AE_OK;
712}
713
2bb9a6b3
TR		 714acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
715 struct pnp_dev *dev)
1da177e4
LT		 716{
717 acpi_status status;
718 struct acpipnp_parse_option_s parse_data;
719
720 parse_data.option = pnp_register_independent_option(dev);
721 if (!parse_data.option)
722 return AE_ERROR;
b008b8d7 723 parse_data.option_independent = parse_data.option;
1da177e4 724 parse_data.dev = dev;
50eca3eb 725 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
9dd78466 726 pnpacpi_option_resource, &parse_data);
1da177e4
LT		 727
728 return status;
729}
730
b5f2490b 731static int pnpacpi_supported_resource(struct acpi_resource *res)
1da177e4 732{
eca008c8 733 switch (res->type) {
50eca3eb 734 case ACPI_RESOURCE_TYPE_IRQ:
50eca3eb
BM		 735 case ACPI_RESOURCE_TYPE_DMA:
736 case ACPI_RESOURCE_TYPE_IO:
737 case ACPI_RESOURCE_TYPE_FIXED_IO:
738 case ACPI_RESOURCE_TYPE_MEMORY24:
739 case ACPI_RESOURCE_TYPE_MEMORY32:
740 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
50eca3eb
BM		 741 case ACPI_RESOURCE_TYPE_ADDRESS16:
742 case ACPI_RESOURCE_TYPE_ADDRESS32:
743 case ACPI_RESOURCE_TYPE_ADDRESS64:
0af5853b 744 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
b5f2490b 745 return 1;
1da177e4 746 }
b5f2490b
BH		 747 return 0;
748}
749
750/*
751 * Set resource
752 */
753static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
9dd78466 754 void *data)
b5f2490b 755{
4721a4cc 756 int *res_cnt = data;
b5f2490b
BH		 757
758 if (pnpacpi_supported_resource(res))
759 (*res_cnt)++;
1da177e4
LT		 760 return AE_OK;
761}
762
1c6e7d0a 763static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
1da177e4 764{
4721a4cc 765 struct acpi_resource **resource = data;
b5f2490b
BH		 766
767 if (pnpacpi_supported_resource(res)) {
eca008c8 768 (*resource)->type = res->type;
b5f2490b 769 (*resource)->length = sizeof(struct acpi_resource);
1da177e4 770 (*resource)++;
1da177e4
LT		 771 }
772
773 return AE_OK;
774}
775
50eca3eb 776int pnpacpi_build_resource_template(acpi_handle handle,
9dd78466 777 struct acpi_buffer *buffer)
1da177e4
LT		 778{
779 struct acpi_resource *resource;
780 int res_cnt = 0;
781 acpi_status status;
782
50eca3eb 783 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 784 pnpacpi_count_resources, &res_cnt);
1da177e4
LT		 785 if (ACPI_FAILURE(status)) {
786 pnp_err("Evaluate _CRS failed");
787 return -EINVAL;
788 }
789 if (!res_cnt)
790 return -EINVAL;
791 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
cd861280 792 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
1da177e4
LT		 793 if (!buffer->pointer)
794 return -ENOMEM;
795 pnp_dbg("Res cnt %d", res_cnt);
796 resource = (struct acpi_resource *)buffer->pointer;
50eca3eb 797 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 798 pnpacpi_type_resources, &resource);
1da177e4
LT		 799 if (ACPI_FAILURE(status)) {
800 kfree(buffer->pointer);
801 pnp_err("Evaluate _CRS failed");
802 return -EINVAL;
803 }
804 /* resource will pointer the end resource now */
50eca3eb 805 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
1da177e4
LT		 806
807 return 0;
808}
809
50eca3eb 810static void pnpacpi_encode_irq(struct acpi_resource *resource,
9dd78466 811 struct resource *p)
1da177e4 812{
9570a20e 813 struct acpi_resource_irq *irq = &resource->data.irq;
50eca3eb 814 int triggering, polarity;
1c6e7d0a
BH		 815
816 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 817 irq->triggering = triggering;
818 irq->polarity = polarity;
50eca3eb 819 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 820 irq->sharable = ACPI_EXCLUSIVE;
1da177e4 821 else
9570a20e
BH		 822 irq->sharable = ACPI_SHARED;
823 irq->interrupt_count = 1;
824 irq->interrupts[0] = p->start;
1da177e4
LT		 825}
826
827static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
9dd78466 828 struct resource *p)
1da177e4 829{
9570a20e 830 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
50eca3eb 831 int triggering, polarity;
1c6e7d0a
BH		 832
833 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 834 extended_irq->producer_consumer = ACPI_CONSUMER;
835 extended_irq->triggering = triggering;
836 extended_irq->polarity = polarity;
50eca3eb 837 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 838 extended_irq->sharable = ACPI_EXCLUSIVE;
1da177e4 839 else
9570a20e
BH		 840 extended_irq->sharable = ACPI_SHARED;
841 extended_irq->interrupt_count = 1;
842 extended_irq->interrupts[0] = p->start;
1da177e4
LT		 843}
844
845static void pnpacpi_encode_dma(struct acpi_resource *resource,
9dd78466 846 struct resource *p)
1da177e4 847{
9570a20e
BH		 848 struct acpi_resource_dma *dma = &resource->data.dma;
849
1da177e4 850 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
ccc4c7bb 851 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
9dd78466 852 case IORESOURCE_DMA_TYPEA:
9570a20e 853 dma->type = ACPI_TYPE_A;
9dd78466
BH		 854 break;
855 case IORESOURCE_DMA_TYPEB:
9570a20e 856 dma->type = ACPI_TYPE_B;
9dd78466
BH		 857 break;
858 case IORESOURCE_DMA_TYPEF:
9570a20e 859 dma->type = ACPI_TYPE_F;
9dd78466
BH		 860 break;
861 default:
9570a20e 862 dma->type = ACPI_COMPATIBILITY;
ccc4c7bb
VP		 863 }
864
865 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
9dd78466 866 case IORESOURCE_DMA_8BIT:
9570a20e 867 dma->transfer = ACPI_TRANSFER_8;
9dd78466
BH		 868 break;
869 case IORESOURCE_DMA_8AND16BIT:
9570a20e 870 dma->transfer = ACPI_TRANSFER_8_16;
9dd78466
BH		 871 break;
872 default:
9570a20e 873 dma->transfer = ACPI_TRANSFER_16;
ccc4c7bb
VP		 874 }
875
9570a20e
BH		 876 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
877 dma->channel_count = 1;
878 dma->channels[0] = p->start;
1da177e4
LT		 879}
880
881static void pnpacpi_encode_io(struct acpi_resource *resource,
9dd78466 882 struct resource *p)
1da177e4 883{
9570a20e
BH		 884 struct acpi_resource_io *io = &resource->data.io;
885
1da177e4 886 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
9570a20e 887 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
9dd78466 888 ACPI_DECODE_16 : ACPI_DECODE_10;
9570a20e
BH		 889 io->minimum = p->start;
890 io->maximum = p->end;
891 io->alignment = 0; /* Correct? */
892 io->address_length = p->end - p->start + 1;
1da177e4
LT		 893}
894
895static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
9dd78466 896 struct resource *p)
1da177e4 897{
9570a20e
BH		 898 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
899
900 fixed_io->address = p->start;
901 fixed_io->address_length = p->end - p->start + 1;
1da177e4
LT		 902}
903
904static void pnpacpi_encode_mem24(struct acpi_resource *resource,
9dd78466 905 struct resource *p)
1da177e4 906{
9570a20e
BH		 907 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
908
1da177e4 909 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
9570a20e 910 memory24->write_protect =
9dd78466
BH		 911 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
912 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 913 memory24->minimum = p->start;
914 memory24->maximum = p->end;
915 memory24->alignment = 0;
916 memory24->address_length = p->end - p->start + 1;
1da177e4
LT		 917}
918
919static void pnpacpi_encode_mem32(struct acpi_resource *resource,
9dd78466 920 struct resource *p)
1da177e4 921{
9570a20e
BH		 922 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
923
924 memory32->write_protect =
9dd78466
BH		 925 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
926 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 927 memory32->minimum = p->start;
928 memory32->maximum = p->end;
929 memory32->alignment = 0;
930 memory32->address_length = p->end - p->start + 1;
1da177e4
LT		 931}
932
933static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
9dd78466 934 struct resource *p)
1da177e4 935{
9570a20e
BH		 936 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
937
938 fixed_memory32->write_protect =
9dd78466
BH		 939 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
940 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 941 fixed_memory32->address = p->start;
942 fixed_memory32->address_length = p->end - p->start + 1;
1da177e4
LT		 943}
944
50eca3eb 945int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
9dd78466 946 struct acpi_buffer *buffer)
1da177e4
LT		 947{
948 int i = 0;
949 /* pnpacpi_build_resource_template allocates extra mem */
9dd78466 950 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
4721a4cc 951 struct acpi_resource *resource = buffer->pointer;
1da177e4
LT		 952 int port = 0, irq = 0, dma = 0, mem = 0;
953
954 pnp_dbg("res cnt %d", res_cnt);
955 while (i < res_cnt) {
9dd78466 956 switch (resource->type) {
50eca3eb 957 case ACPI_RESOURCE_TYPE_IRQ:
1da177e4 958 pnp_dbg("Encode irq");
50eca3eb 959 pnpacpi_encode_irq(resource,
9dd78466 960 &res_table->irq_resource[irq]);
1da177e4
LT		 961 irq++;
962 break;
963
50eca3eb 964 case ACPI_RESOURCE_TYPE_DMA:
1da177e4 965 pnp_dbg("Encode dma");
50eca3eb 966 pnpacpi_encode_dma(resource,
9dd78466 967 &res_table->dma_resource[dma]);
1c6e7d0a 968 dma++;
1da177e4 969 break;
50eca3eb 970 case ACPI_RESOURCE_TYPE_IO:
1da177e4 971 pnp_dbg("Encode io");
50eca3eb 972 pnpacpi_encode_io(resource,
9dd78466 973 &res_table->port_resource[port]);
1c6e7d0a 974 port++;
1da177e4 975 break;
50eca3eb 976 case ACPI_RESOURCE_TYPE_FIXED_IO:
1da177e4
LT		 977 pnp_dbg("Encode fixed io");
978 pnpacpi_encode_fixed_io(resource,
9dd78466
BH		 979 &res_table->
980 port_resource[port]);
1c6e7d0a 981 port++;
1da177e4 982 break;
50eca3eb 983 case ACPI_RESOURCE_TYPE_MEMORY24:
1da177e4
LT		 984 pnp_dbg("Encode mem24");
985 pnpacpi_encode_mem24(resource,
9dd78466 986 &res_table->mem_resource[mem]);
1c6e7d0a 987 mem++;
1da177e4 988 break;
50eca3eb 989 case ACPI_RESOURCE_TYPE_MEMORY32:
1da177e4
LT		 990 pnp_dbg("Encode mem32");
991 pnpacpi_encode_mem32(resource,
9dd78466 992 &res_table->mem_resource[mem]);
1c6e7d0a 993 mem++;
1da177e4 994 break;
50eca3eb 995 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1da177e4
LT		 996 pnp_dbg("Encode fixed mem32");
997 pnpacpi_encode_fixed_mem32(resource,
9dd78466
BH		 998 &res_table->
999 mem_resource[mem]);
1c6e7d0a 1000 mem++;
1da177e4 1001 break;
0af5853b
LB		 1002 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1003 pnp_dbg("Encode ext irq");
1004 pnpacpi_encode_ext_irq(resource,
9dd78466 1005 &res_table->irq_resource[irq]);
0af5853b
LB		 1006 irq++;
1007 break;
1008 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1009 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1010 case ACPI_RESOURCE_TYPE_VENDOR:
1011 case ACPI_RESOURCE_TYPE_END_TAG:
1012 case ACPI_RESOURCE_TYPE_ADDRESS16:
1013 case ACPI_RESOURCE_TYPE_ADDRESS32:
1014 case ACPI_RESOURCE_TYPE_ADDRESS64:
1015 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1016 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
9dd78466 1017 default: /* other type */
eca008c8 1018 pnp_warn("unknown resource type %d", resource->type);
1da177e4
LT		 1019 return -EINVAL;
1020 }
1c6e7d0a
BH		 1021 resource++;
1022 i++;
1da177e4
LT		 1023 }
1024 return 0;
1025}
Linux kernel - Deliverables
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