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PNPACPI: use temporaries to reduce repetition
[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
BH		 171static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
172 u32 dma, int type,
173 int bus_master, int transfer)
1da177e4
LT		 174{
175 int i = 0;
66a21736 176 static unsigned char warned;
07d4e9af 177
0dec63ba 178 while (i < PNP_MAX_DMA &&
9dd78466 179 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
1da177e4
LT		 180 i++;
181 if (i < PNP_MAX_DMA) {
9dd78466
BH		 182 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
183 res->dma_resource[i].flags |=
184 dma_flags(type, bus_master, transfer);
1da177e4
LT		 185 if (dma == -1) {
186 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
187 return;
188 }
dbed12da
BH		 189 res->dma_resource[i].start = dma;
190 res->dma_resource[i].end = dma;
66a21736 191 } else if (!warned) {
33fd7afd 192 printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
a7839e96 193 "resources: %d \n", PNP_MAX_DMA);
66a21736 194 warned = 1;
1da177e4
LT		 195 }
196}
197
07d4e9af
BH		 198static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
199 u64 io, u64 len, int io_decode)
1da177e4
LT		 200{
201 int i = 0;
66a21736 202 static unsigned char warned;
07d4e9af 203
1da177e4 204 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 205 i < PNP_MAX_PORT)
1da177e4
LT		 206 i++;
207 if (i < PNP_MAX_PORT) {
9dd78466 208 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
362ea087
MK		 209 if (io_decode == ACPI_DECODE_16)
210 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
9dd78466 211 if (len <= 0 || (io + len - 1) >= 0x10003) {
1da177e4
LT		 212 res->port_resource[i].flags |= IORESOURCE_DISABLED;
213 return;
214 }
dbed12da
BH		 215 res->port_resource[i].start = io;
216 res->port_resource[i].end = io + len - 1;
66a21736 217 } else if (!warned) {
33fd7afd 218 printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
a7839e96 219 "resources: %d \n", PNP_MAX_PORT);
efe7cf2d 220 warned = 1;
1da177e4
LT		 221 }
222}
223
07d4e9af
BH		 224static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
225 u64 mem, u64 len,
226 int write_protect)
1da177e4
LT		 227{
228 int i = 0;
66a21736 229 static unsigned char warned;
07d4e9af 230
1da177e4 231 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
9dd78466 232 (i < PNP_MAX_MEM))
1da177e4
LT		 233 i++;
234 if (i < PNP_MAX_MEM) {
9dd78466 235 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
1da177e4
LT		 236 if (len <= 0) {
237 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
238 return;
239 }
9dd78466 240 if (write_protect == ACPI_READ_WRITE_MEMORY)
362ea087
MK		 241 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
242
dbed12da
BH		 243 res->mem_resource[i].start = mem;
244 res->mem_resource[i].end = mem + len - 1;
66a21736 245 } else if (!warned) {
33fd7afd 246 printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
a7839e96 247 "resources: %d\n", PNP_MAX_MEM);
efe7cf2d 248 warned = 1;
1da177e4
LT		 249 }
250}
251
07d4e9af
BH		 252static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
253 struct acpi_resource *res)
1acfb7f2
BH		 254{
255 struct acpi_resource_address64 addr, *p = &addr;
256 acpi_status status;
257
258 status = acpi_resource_to_address64(res, p);
259 if (!ACPI_SUCCESS(status)) {
260 pnp_warn("PnPACPI: failed to convert resource type %d",
9dd78466 261 res->type);
1acfb7f2
BH		 262 return;
263 }
264
2b8de5f5 265 if (p->producer_consumer == ACPI_PRODUCER)
266 return;
267
1acfb7f2
BH		 268 if (p->resource_type == ACPI_MEMORY_RANGE)
269 pnpacpi_parse_allocated_memresource(res_table,
07d4e9af
BH		 270 p->minimum, p->address_length,
271 p->info.mem.write_protect);
1acfb7f2
BH		 272 else if (p->resource_type == ACPI_IO_RANGE)
273 pnpacpi_parse_allocated_ioresource(res_table,
07d4e9af
BH		 274 p->minimum, p->address_length,
275 p->granularity == 0xfff ? ACPI_DECODE_10 :
276 ACPI_DECODE_16);
1acfb7f2 277}
1da177e4
LT		 278
279static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
9dd78466 280 void *data)
1da177e4 281{
4721a4cc 282 struct pnp_resource_table *res_table = data;
9570a20e
BH		 283 struct acpi_resource_irq *irq;
284 struct acpi_resource_dma *dma;
285 struct acpi_resource_io *io;
286 struct acpi_resource_fixed_io *fixed_io;
287 struct acpi_resource_memory24 *memory24;
288 struct acpi_resource_memory32 *memory32;
289 struct acpi_resource_fixed_memory32 *fixed_memory32;
290 struct acpi_resource_extended_irq *extended_irq;
dbed12da 291 int i;
1da177e4 292
eca008c8 293 switch (res->type) {
50eca3eb 294 case ACPI_RESOURCE_TYPE_IRQ:
dbed12da
BH		 295 /*
296 * Per spec, only one interrupt per descriptor is allowed in
297 * _CRS, but some firmware violates this, so parse them all.
298 */
9570a20e
BH		 299 irq = &res->data.irq;
300 for (i = 0; i < irq->interrupt_count; i++) {
dbed12da 301 pnpacpi_parse_allocated_irqresource(res_table,
9570a20e
BH		 302 irq->interrupts[i],
303 irq->triggering,
304 irq->polarity,
305 irq->sharable);
1da177e4
LT		 306 }
307 break;
308
50eca3eb 309 case ACPI_RESOURCE_TYPE_DMA:
9570a20e
BH		 310 dma = &res->data.dma;
311 if (dma->channel_count > 0)
50eca3eb 312 pnpacpi_parse_allocated_dmaresource(res_table,
9570a20e
BH		 313 dma->channels[0],
314 dma->type,
315 dma->bus_master,
316 dma->transfer);
1da177e4 317 break;
0af5853b 318
50eca3eb 319 case ACPI_RESOURCE_TYPE_IO:
9570a20e 320 io = &res->data.io;
50eca3eb 321 pnpacpi_parse_allocated_ioresource(res_table,
9570a20e
BH		 322 io->minimum,
323 io->address_length,
324 io->io_decode);
1da177e4 325 break;
0af5853b
LB		 326
327 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
328 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
329 break;
330
50eca3eb 331 case ACPI_RESOURCE_TYPE_FIXED_IO:
9570a20e 332 fixed_io = &res->data.fixed_io;
50eca3eb 333 pnpacpi_parse_allocated_ioresource(res_table,
9570a20e
BH		 334 fixed_io->address,
335 fixed_io->address_length,
07d4e9af 336 ACPI_DECODE_10);
1da177e4 337 break;
0af5853b
LB		 338
339 case ACPI_RESOURCE_TYPE_VENDOR:
340 break;
341
342 case ACPI_RESOURCE_TYPE_END_TAG:
343 break;
344
50eca3eb 345 case ACPI_RESOURCE_TYPE_MEMORY24:
9570a20e 346 memory24 = &res->data.memory24;
50eca3eb 347 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 348 memory24->minimum,
349 memory24->address_length,
350 memory24->write_protect);
1da177e4 351 break;
50eca3eb 352 case ACPI_RESOURCE_TYPE_MEMORY32:
9570a20e 353 memory32 = &res->data.memory32;
50eca3eb 354 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 355 memory32->minimum,
356 memory32->address_length,
357 memory32->write_protect);
1da177e4 358 break;
50eca3eb 359 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
9570a20e 360 fixed_memory32 = &res->data.fixed_memory32;
50eca3eb 361 pnpacpi_parse_allocated_memresource(res_table,
9570a20e
BH		 362 fixed_memory32->address,
363 fixed_memory32->address_length,
364 fixed_memory32->write_protect);
1da177e4 365 break;
50eca3eb 366 case ACPI_RESOURCE_TYPE_ADDRESS16:
50eca3eb 367 case ACPI_RESOURCE_TYPE_ADDRESS32:
50eca3eb 368 case ACPI_RESOURCE_TYPE_ADDRESS64:
1acfb7f2 369 pnpacpi_parse_allocated_address_space(res_table, res);
1da177e4 370 break;
0af5853b
LB		 371
372 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
2b8de5f5 373 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
374 return AE_OK;
0af5853b
LB		 375 break;
376
377 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
9570a20e
BH		 378 extended_irq = &res->data.extended_irq;
379 if (extended_irq->producer_consumer == ACPI_PRODUCER)
2b8de5f5 380 return AE_OK;
381
9570a20e 382 for (i = 0; i < extended_irq->interrupt_count; i++) {
0af5853b 383 pnpacpi_parse_allocated_irqresource(res_table,
9570a20e
BH		 384 extended_irq->interrupts[i],
385 extended_irq->triggering,
386 extended_irq->polarity,
387 extended_irq->sharable);
0af5853b
LB		 388 }
389 break;
390
391 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1da177e4 392 break;
0af5853b 393
1da177e4 394 default:
eca008c8 395 pnp_warn("PnPACPI: unknown resource type %d", res->type);
1da177e4
LT		 396 return AE_ERROR;
397 }
1c6e7d0a 398
1da177e4
LT		 399 return AE_OK;
400}
401
9dd78466
BH		 402acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
403 struct pnp_resource_table * res)
1da177e4
LT		 404{
405 /* Blank the resource table values */
406 pnp_init_resource_table(res);
407
9dd78466
BH		 408 return acpi_walk_resources(handle, METHOD_NAME__CRS,
409 pnpacpi_allocated_resource, res);
1da177e4
LT		 410}
411
2bb9a6b3
TR		 412static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
413 struct acpi_resource_dma *p)
1da177e4
LT		 414{
415 int i;
9dd78466 416 struct pnp_dma *dma;
1da177e4 417
50eca3eb 418 if (p->channel_count == 0)
1da177e4 419 return;
cd861280 420 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
1da177e4
LT		 421 if (!dma)
422 return;
423
9dd78466 424 for (i = 0; i < p->channel_count; i++)
1da177e4 425 dma->map |= 1 << p->channels[i];
362ea087
MK		 426
427 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
1da177e4 428
1c6e7d0a 429 pnp_register_dma_resource(option, dma);
1da177e4
LT		 430}
431
2bb9a6b3
TR		 432static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
433 struct acpi_resource_irq *p)
1da177e4
LT		 434{
435 int i;
1c6e7d0a
BH		 436 struct pnp_irq *irq;
437
50eca3eb 438 if (p->interrupt_count == 0)
1da177e4 439 return;
cd861280 440 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 441 if (!irq)
442 return;
443
9dd78466 444 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 445 if (p->interrupts[i])
446 __set_bit(p->interrupts[i], irq->map);
50eca3eb 447 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 448
449 pnp_register_irq_resource(option, irq);
1da177e4
LT		 450}
451
2bb9a6b3
TR		 452static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
453 struct acpi_resource_extended_irq *p)
1da177e4
LT		 454{
455 int i;
1c6e7d0a 456 struct pnp_irq *irq;
1da177e4 457
50eca3eb 458 if (p->interrupt_count == 0)
1da177e4 459 return;
cd861280 460 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
1da177e4
LT		 461 if (!irq)
462 return;
463
9dd78466 464 for (i = 0; i < p->interrupt_count; i++)
1da177e4
LT		 465 if (p->interrupts[i])
466 __set_bit(p->interrupts[i], irq->map);
50eca3eb 467 irq->flags = irq_flags(p->triggering, p->polarity);
1da177e4
LT		 468
469 pnp_register_irq_resource(option, irq);
1da177e4
LT		 470}
471
2bb9a6b3
TR		 472static __init void pnpacpi_parse_port_option(struct pnp_option *option,
473 struct acpi_resource_io *io)
1da177e4 474{
1c6e7d0a 475 struct pnp_port *port;
1da177e4 476
50eca3eb 477 if (io->address_length == 0)
1da177e4 478 return;
cd861280 479 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 480 if (!port)
481 return;
50eca3eb
BM		 482 port->min = io->minimum;
483 port->max = io->maximum;
1da177e4 484 port->align = io->alignment;
50eca3eb
BM		 485 port->size = io->address_length;
486 port->flags = ACPI_DECODE_16 == io->io_decode ?
9dd78466 487 PNP_PORT_FLAG_16BITADDR : 0;
1c6e7d0a 488 pnp_register_port_resource(option, port);
1da177e4
LT		 489}
490
2bb9a6b3
TR		 491static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
492 struct acpi_resource_fixed_io *io)
1da177e4 493{
1c6e7d0a 494 struct pnp_port *port;
1da177e4 495
50eca3eb 496 if (io->address_length == 0)
1da177e4 497 return;
cd861280 498 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
1da177e4
LT		 499 if (!port)
500 return;
50eca3eb
BM		 501 port->min = port->max = io->address;
502 port->size = io->address_length;
1da177e4
LT		 503 port->align = 0;
504 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 505 pnp_register_port_resource(option, port);
1da177e4
LT		 506}
507
2bb9a6b3
TR		 508static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
509 struct acpi_resource_memory24 *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 = p->minimum;
519 mem->max = p->maximum;
1da177e4 520 mem->align = p->alignment;
50eca3eb 521 mem->size = p->address_length;
1da177e4 522
0897831b 523 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 524 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 525
1c6e7d0a 526 pnp_register_mem_resource(option, mem);
1da177e4
LT		 527}
528
2bb9a6b3
TR		 529static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
530 struct acpi_resource_memory32 *p)
1da177e4 531{
1c6e7d0a 532 struct pnp_mem *mem;
1da177e4 533
50eca3eb 534 if (p->address_length == 0)
1da177e4 535 return;
cd861280 536 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 537 if (!mem)
538 return;
50eca3eb
BM		 539 mem->min = p->minimum;
540 mem->max = p->maximum;
1da177e4 541 mem->align = p->alignment;
50eca3eb 542 mem->size = p->address_length;
1da177e4 543
0897831b 544 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 545 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 546
1c6e7d0a 547 pnp_register_mem_resource(option, mem);
1da177e4
LT		 548}
549
2bb9a6b3
TR		 550static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
551 struct acpi_resource_fixed_memory32 *p)
1da177e4 552{
1c6e7d0a 553 struct pnp_mem *mem;
1da177e4 554
50eca3eb 555 if (p->address_length == 0)
1da177e4 556 return;
cd861280 557 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
1da177e4
LT		 558 if (!mem)
559 return;
50eca3eb
BM		 560 mem->min = mem->max = p->address;
561 mem->size = p->address_length;
1da177e4
LT		 562 mem->align = 0;
563
0897831b 564 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
9dd78466 565 IORESOURCE_MEM_WRITEABLE : 0;
1da177e4 566
1c6e7d0a 567 pnp_register_mem_resource(option, mem);
1da177e4
LT		 568}
569
2bb9a6b3
TR		 570static __init void pnpacpi_parse_address_option(struct pnp_option *option,
571 struct acpi_resource *r)
6f957eaf
BH		 572{
573 struct acpi_resource_address64 addr, *p = &addr;
574 acpi_status status;
1c6e7d0a
BH		 575 struct pnp_mem *mem;
576 struct pnp_port *port;
6f957eaf
BH		 577
578 status = acpi_resource_to_address64(r, p);
579 if (!ACPI_SUCCESS(status)) {
9dd78466
BH		 580 pnp_warn("PnPACPI: failed to convert resource type %d",
581 r->type);
6f957eaf
BH		 582 return;
583 }
584
585 if (p->address_length == 0)
586 return;
587
588 if (p->resource_type == ACPI_MEMORY_RANGE) {
cd861280 589 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
6f957eaf
BH		 590 if (!mem)
591 return;
ed03f430 592 mem->min = mem->max = p->minimum;
6f957eaf
BH		 593 mem->size = p->address_length;
594 mem->align = 0;
ed03f430 595 mem->flags = (p->info.mem.write_protect ==
9dd78466
BH		 596 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
597 : 0;
1c6e7d0a 598 pnp_register_mem_resource(option, mem);
6f957eaf 599 } else if (p->resource_type == ACPI_IO_RANGE) {
cd861280 600 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
6f957eaf
BH		 601 if (!port)
602 return;
ed03f430 603 port->min = port->max = p->minimum;
6f957eaf
BH		 604 port->size = p->address_length;
605 port->align = 0;
606 port->flags = PNP_PORT_FLAG_FIXED;
1c6e7d0a 607 pnp_register_port_resource(option, port);
6f957eaf
BH		 608 }
609}
610
1da177e4
LT		 611struct acpipnp_parse_option_s {
612 struct pnp_option *option;
b008b8d7 613 struct pnp_option *option_independent;
1da177e4
LT		 614 struct pnp_dev *dev;
615};
616
2bb9a6b3
TR		 617static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
618 void *data)
1da177e4
LT		 619{
620 int priority = 0;
4721a4cc 621 struct acpipnp_parse_option_s *parse_data = data;
1da177e4
LT		 622 struct pnp_dev *dev = parse_data->dev;
623 struct pnp_option *option = parse_data->option;
624
eca008c8 625 switch (res->type) {
9dd78466
BH		 626 case ACPI_RESOURCE_TYPE_IRQ:
627 pnpacpi_parse_irq_option(option, &res->data.irq);
628 break;
0af5853b 629
9dd78466
BH		 630 case ACPI_RESOURCE_TYPE_DMA:
631 pnpacpi_parse_dma_option(option, &res->data.dma);
632 break;
0af5853b 633
9dd78466
BH		 634 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
635 switch (res->data.start_dpf.compatibility_priority) {
636 case ACPI_GOOD_CONFIGURATION:
637 priority = PNP_RES_PRIORITY_PREFERRED;
1da177e4 638 break;
0af5853b 639
9dd78466
BH		 640 case ACPI_ACCEPTABLE_CONFIGURATION:
641 priority = PNP_RES_PRIORITY_ACCEPTABLE;
b008b8d7 642 break;
0af5853b 643
9dd78466
BH		 644 case ACPI_SUB_OPTIMAL_CONFIGURATION:
645 priority = PNP_RES_PRIORITY_FUNCTIONAL;
0af5853b 646 break;
9dd78466
BH		 647 default:
648 priority = PNP_RES_PRIORITY_INVALID;
0af5853b 649 break;
9dd78466 650 }
07d4e9af 651 /* TBD: Consider performance/robustness bits */
9dd78466
BH		 652 option = pnp_register_dependent_option(dev, priority);
653 if (!option)
654 return AE_ERROR;
655 parse_data->option = option;
656 break;
0af5853b 657
9dd78466
BH		 658 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
659 /*only one EndDependentFn is allowed */
660 if (!parse_data->option_independent) {
661 pnp_warn("PnPACPI: more than one EndDependentFn");
662 return AE_ERROR;
663 }
664 parse_data->option = parse_data->option_independent;
665 parse_data->option_independent = NULL;
666 break;
0af5853b 667
9dd78466
BH		 668 case ACPI_RESOURCE_TYPE_IO:
669 pnpacpi_parse_port_option(option, &res->data.io);
670 break;
0af5853b 671
9dd78466
BH		 672 case ACPI_RESOURCE_TYPE_FIXED_IO:
673 pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
674 break;
0af5853b 675
9dd78466
BH		 676 case ACPI_RESOURCE_TYPE_VENDOR:
677 case ACPI_RESOURCE_TYPE_END_TAG:
678 break;
0af5853b 679
9dd78466
BH		 680 case ACPI_RESOURCE_TYPE_MEMORY24:
681 pnpacpi_parse_mem24_option(option, &res->data.memory24);
682 break;
0af5853b 683
9dd78466
BH		 684 case ACPI_RESOURCE_TYPE_MEMORY32:
685 pnpacpi_parse_mem32_option(option, &res->data.memory32);
686 break;
0af5853b 687
9dd78466
BH		 688 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
689 pnpacpi_parse_fixed_mem32_option(option,
690 &res->data.fixed_memory32);
691 break;
0af5853b 692
9dd78466
BH		 693 case ACPI_RESOURCE_TYPE_ADDRESS16:
694 case ACPI_RESOURCE_TYPE_ADDRESS32:
695 case ACPI_RESOURCE_TYPE_ADDRESS64:
696 pnpacpi_parse_address_option(option, res);
697 break;
0af5853b 698
9dd78466
BH		 699 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
700 break;
701
702 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
703 pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
704 break;
705
706 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
707 break;
708
709 default:
710 pnp_warn("PnPACPI: unknown resource type %d", res->type);
711 return AE_ERROR;
1da177e4 712 }
1c6e7d0a 713
1da177e4
LT		 714 return AE_OK;
715}
716
2bb9a6b3
TR		 717acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
718 struct pnp_dev *dev)
1da177e4
LT		 719{
720 acpi_status status;
721 struct acpipnp_parse_option_s parse_data;
722
723 parse_data.option = pnp_register_independent_option(dev);
724 if (!parse_data.option)
725 return AE_ERROR;
b008b8d7 726 parse_data.option_independent = parse_data.option;
1da177e4 727 parse_data.dev = dev;
50eca3eb 728 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
9dd78466 729 pnpacpi_option_resource, &parse_data);
1da177e4
LT		 730
731 return status;
732}
733
b5f2490b 734static int pnpacpi_supported_resource(struct acpi_resource *res)
1da177e4 735{
eca008c8 736 switch (res->type) {
50eca3eb 737 case ACPI_RESOURCE_TYPE_IRQ:
50eca3eb
BM		 738 case ACPI_RESOURCE_TYPE_DMA:
739 case ACPI_RESOURCE_TYPE_IO:
740 case ACPI_RESOURCE_TYPE_FIXED_IO:
741 case ACPI_RESOURCE_TYPE_MEMORY24:
742 case ACPI_RESOURCE_TYPE_MEMORY32:
743 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
50eca3eb
BM		 744 case ACPI_RESOURCE_TYPE_ADDRESS16:
745 case ACPI_RESOURCE_TYPE_ADDRESS32:
746 case ACPI_RESOURCE_TYPE_ADDRESS64:
0af5853b 747 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
b5f2490b 748 return 1;
1da177e4 749 }
b5f2490b
BH		 750 return 0;
751}
752
753/*
754 * Set resource
755 */
756static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
9dd78466 757 void *data)
b5f2490b 758{
4721a4cc 759 int *res_cnt = data;
b5f2490b
BH		 760
761 if (pnpacpi_supported_resource(res))
762 (*res_cnt)++;
1da177e4
LT		 763 return AE_OK;
764}
765
1c6e7d0a 766static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
1da177e4 767{
4721a4cc 768 struct acpi_resource **resource = data;
b5f2490b
BH		 769
770 if (pnpacpi_supported_resource(res)) {
eca008c8 771 (*resource)->type = res->type;
b5f2490b 772 (*resource)->length = sizeof(struct acpi_resource);
1da177e4 773 (*resource)++;
1da177e4
LT		 774 }
775
776 return AE_OK;
777}
778
50eca3eb 779int pnpacpi_build_resource_template(acpi_handle handle,
9dd78466 780 struct acpi_buffer *buffer)
1da177e4
LT		 781{
782 struct acpi_resource *resource;
783 int res_cnt = 0;
784 acpi_status status;
785
50eca3eb 786 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 787 pnpacpi_count_resources, &res_cnt);
1da177e4
LT		 788 if (ACPI_FAILURE(status)) {
789 pnp_err("Evaluate _CRS failed");
790 return -EINVAL;
791 }
792 if (!res_cnt)
793 return -EINVAL;
794 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
cd861280 795 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
1da177e4
LT		 796 if (!buffer->pointer)
797 return -ENOMEM;
798 pnp_dbg("Res cnt %d", res_cnt);
799 resource = (struct acpi_resource *)buffer->pointer;
50eca3eb 800 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
9dd78466 801 pnpacpi_type_resources, &resource);
1da177e4
LT		 802 if (ACPI_FAILURE(status)) {
803 kfree(buffer->pointer);
804 pnp_err("Evaluate _CRS failed");
805 return -EINVAL;
806 }
807 /* resource will pointer the end resource now */
50eca3eb 808 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
1da177e4
LT		 809
810 return 0;
811}
812
50eca3eb 813static void pnpacpi_encode_irq(struct acpi_resource *resource,
9dd78466 814 struct resource *p)
1da177e4 815{
9570a20e 816 struct acpi_resource_irq *irq = &resource->data.irq;
50eca3eb 817 int triggering, polarity;
1c6e7d0a
BH		 818
819 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 820 irq->triggering = triggering;
821 irq->polarity = polarity;
50eca3eb 822 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 823 irq->sharable = ACPI_EXCLUSIVE;
1da177e4 824 else
9570a20e
BH		 825 irq->sharable = ACPI_SHARED;
826 irq->interrupt_count = 1;
827 irq->interrupts[0] = p->start;
1da177e4
LT		 828}
829
830static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
9dd78466 831 struct resource *p)
1da177e4 832{
9570a20e 833 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
50eca3eb 834 int triggering, polarity;
1c6e7d0a
BH		 835
836 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
9570a20e
BH		 837 extended_irq->producer_consumer = ACPI_CONSUMER;
838 extended_irq->triggering = triggering;
839 extended_irq->polarity = polarity;
50eca3eb 840 if (triggering == ACPI_EDGE_SENSITIVE)
9570a20e 841 extended_irq->sharable = ACPI_EXCLUSIVE;
1da177e4 842 else
9570a20e
BH		 843 extended_irq->sharable = ACPI_SHARED;
844 extended_irq->interrupt_count = 1;
845 extended_irq->interrupts[0] = p->start;
1da177e4
LT		 846}
847
848static void pnpacpi_encode_dma(struct acpi_resource *resource,
9dd78466 849 struct resource *p)
1da177e4 850{
9570a20e
BH		 851 struct acpi_resource_dma *dma = &resource->data.dma;
852
1da177e4 853 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
ccc4c7bb 854 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
9dd78466 855 case IORESOURCE_DMA_TYPEA:
9570a20e 856 dma->type = ACPI_TYPE_A;
9dd78466
BH		 857 break;
858 case IORESOURCE_DMA_TYPEB:
9570a20e 859 dma->type = ACPI_TYPE_B;
9dd78466
BH		 860 break;
861 case IORESOURCE_DMA_TYPEF:
9570a20e 862 dma->type = ACPI_TYPE_F;
9dd78466
BH		 863 break;
864 default:
9570a20e 865 dma->type = ACPI_COMPATIBILITY;
ccc4c7bb
VP		 866 }
867
868 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
9dd78466 869 case IORESOURCE_DMA_8BIT:
9570a20e 870 dma->transfer = ACPI_TRANSFER_8;
9dd78466
BH		 871 break;
872 case IORESOURCE_DMA_8AND16BIT:
9570a20e 873 dma->transfer = ACPI_TRANSFER_8_16;
9dd78466
BH		 874 break;
875 default:
9570a20e 876 dma->transfer = ACPI_TRANSFER_16;
ccc4c7bb
VP		 877 }
878
9570a20e
BH		 879 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
880 dma->channel_count = 1;
881 dma->channels[0] = p->start;
1da177e4
LT		 882}
883
884static void pnpacpi_encode_io(struct acpi_resource *resource,
9dd78466 885 struct resource *p)
1da177e4 886{
9570a20e
BH		 887 struct acpi_resource_io *io = &resource->data.io;
888
1da177e4 889 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
9570a20e 890 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
9dd78466 891 ACPI_DECODE_16 : ACPI_DECODE_10;
9570a20e
BH		 892 io->minimum = p->start;
893 io->maximum = p->end;
894 io->alignment = 0; /* Correct? */
895 io->address_length = p->end - p->start + 1;
1da177e4
LT		 896}
897
898static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
9dd78466 899 struct resource *p)
1da177e4 900{
9570a20e
BH		 901 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
902
903 fixed_io->address = p->start;
904 fixed_io->address_length = p->end - p->start + 1;
1da177e4
LT		 905}
906
907static void pnpacpi_encode_mem24(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;
1da177e4
LT		 920}
921
922static void pnpacpi_encode_mem32(struct acpi_resource *resource,
9dd78466 923 struct resource *p)
1da177e4 924{
9570a20e
BH		 925 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
926
927 memory32->write_protect =
9dd78466
BH		 928 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
929 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 930 memory32->minimum = p->start;
931 memory32->maximum = p->end;
932 memory32->alignment = 0;
933 memory32->address_length = p->end - p->start + 1;
1da177e4
LT		 934}
935
936static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
9dd78466 937 struct resource *p)
1da177e4 938{
9570a20e
BH		 939 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
940
941 fixed_memory32->write_protect =
9dd78466
BH		 942 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
943 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
9570a20e
BH		 944 fixed_memory32->address = p->start;
945 fixed_memory32->address_length = p->end - p->start + 1;
1da177e4
LT		 946}
947
50eca3eb 948int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
9dd78466 949 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
957 pnp_dbg("res cnt %d", res_cnt);
958 while (i < res_cnt) {
9dd78466 959 switch (resource->type) {
50eca3eb 960 case ACPI_RESOURCE_TYPE_IRQ:
1da177e4 961 pnp_dbg("Encode irq");
50eca3eb 962 pnpacpi_encode_irq(resource,
9dd78466 963 &res_table->irq_resource[irq]);
1da177e4
LT		 964 irq++;
965 break;
966
50eca3eb 967 case ACPI_RESOURCE_TYPE_DMA:
1da177e4 968 pnp_dbg("Encode dma");
50eca3eb 969 pnpacpi_encode_dma(resource,
9dd78466 970 &res_table->dma_resource[dma]);
1c6e7d0a 971 dma++;
1da177e4 972 break;
50eca3eb 973 case ACPI_RESOURCE_TYPE_IO:
1da177e4 974 pnp_dbg("Encode io");
50eca3eb 975 pnpacpi_encode_io(resource,
9dd78466 976 &res_table->port_resource[port]);
1c6e7d0a 977 port++;
1da177e4 978 break;
50eca3eb 979 case ACPI_RESOURCE_TYPE_FIXED_IO:
1da177e4
LT		 980 pnp_dbg("Encode fixed io");
981 pnpacpi_encode_fixed_io(resource,
9dd78466
BH		 982 &res_table->
983 port_resource[port]);
1c6e7d0a 984 port++;
1da177e4 985 break;
50eca3eb 986 case ACPI_RESOURCE_TYPE_MEMORY24:
1da177e4
LT		 987 pnp_dbg("Encode mem24");
988 pnpacpi_encode_mem24(resource,
9dd78466 989 &res_table->mem_resource[mem]);
1c6e7d0a 990 mem++;
1da177e4 991 break;
50eca3eb 992 case ACPI_RESOURCE_TYPE_MEMORY32:
1da177e4
LT		 993 pnp_dbg("Encode mem32");
994 pnpacpi_encode_mem32(resource,
9dd78466 995 &res_table->mem_resource[mem]);
1c6e7d0a 996 mem++;
1da177e4 997 break;
50eca3eb 998 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1da177e4
LT		 999 pnp_dbg("Encode fixed mem32");
1000 pnpacpi_encode_fixed_mem32(resource,
9dd78466
BH		 1001 &res_table->
1002 mem_resource[mem]);
1c6e7d0a 1003 mem++;
1da177e4 1004 break;
0af5853b
LB		 1005 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1006 pnp_dbg("Encode ext irq");
1007 pnpacpi_encode_ext_irq(resource,
9dd78466 1008 &res_table->irq_resource[irq]);
0af5853b
LB		 1009 irq++;
1010 break;
1011 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1012 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1013 case ACPI_RESOURCE_TYPE_VENDOR:
1014 case ACPI_RESOURCE_TYPE_END_TAG:
1015 case ACPI_RESOURCE_TYPE_ADDRESS16:
1016 case ACPI_RESOURCE_TYPE_ADDRESS32:
1017 case ACPI_RESOURCE_TYPE_ADDRESS64:
1018 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1019 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
9dd78466 1020 default: /* other type */
eca008c8 1021 pnp_warn("unknown resource type %d", resource->type);
1da177e4
LT		 1022 return -EINVAL;
1023 }
1c6e7d0a
BH		 1024 resource++;
1025 i++;
1da177e4
LT		 1026 }
1027 return 0;
1028}
Linux kernel - Deliverables
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