2 * pnpacpi -- PnP ACPI driver
4 * Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
5 * Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
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
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.
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
21 #include <linux/kernel.h>
22 #include <linux/acpi.h>
23 #include <linux/pci.h>
24 #include <linux/pnp.h>
29 #define valid_IRQ(i) (1)
31 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
37 static int irq_flags(int triggering
, int polarity
, int shareable
)
41 if (triggering
== ACPI_LEVEL_SENSITIVE
) {
42 if (polarity
== ACPI_ACTIVE_LOW
)
43 flags
= IORESOURCE_IRQ_LOWLEVEL
;
45 flags
= IORESOURCE_IRQ_HIGHLEVEL
;
47 if (polarity
== ACPI_ACTIVE_LOW
)
48 flags
= IORESOURCE_IRQ_LOWEDGE
;
50 flags
= IORESOURCE_IRQ_HIGHEDGE
;
53 if (shareable
== ACPI_SHARED
)
54 flags
|= IORESOURCE_IRQ_SHAREABLE
;
59 static void decode_irq_flags(struct pnp_dev
*dev
, int flags
, int *triggering
,
60 int *polarity
, int *shareable
)
62 switch (flags
& (IORESOURCE_IRQ_LOWLEVEL
| IORESOURCE_IRQ_HIGHLEVEL
|
63 IORESOURCE_IRQ_LOWEDGE
| IORESOURCE_IRQ_HIGHEDGE
)) {
64 case IORESOURCE_IRQ_LOWLEVEL
:
65 *triggering
= ACPI_LEVEL_SENSITIVE
;
66 *polarity
= ACPI_ACTIVE_LOW
;
68 case IORESOURCE_IRQ_HIGHLEVEL
:
69 *triggering
= ACPI_LEVEL_SENSITIVE
;
70 *polarity
= ACPI_ACTIVE_HIGH
;
72 case IORESOURCE_IRQ_LOWEDGE
:
73 *triggering
= ACPI_EDGE_SENSITIVE
;
74 *polarity
= ACPI_ACTIVE_LOW
;
76 case IORESOURCE_IRQ_HIGHEDGE
:
77 *triggering
= ACPI_EDGE_SENSITIVE
;
78 *polarity
= ACPI_ACTIVE_HIGH
;
81 dev_err(&dev
->dev
, "can't encode invalid IRQ mode %#x\n",
83 *triggering
= ACPI_EDGE_SENSITIVE
;
84 *polarity
= ACPI_ACTIVE_HIGH
;
88 if (flags
& IORESOURCE_IRQ_SHAREABLE
)
89 *shareable
= ACPI_SHARED
;
91 *shareable
= ACPI_EXCLUSIVE
;
94 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev
*dev
,
95 u32 gsi
, int triggering
,
96 int polarity
, int shareable
)
101 if (!valid_IRQ(gsi
)) {
102 pnp_add_irq_resource(dev
, gsi
, IORESOURCE_DISABLED
);
107 * in IO-APIC mode, use overrided attribute. Two reasons:
108 * 1. BIOS bug in DSDT
109 * 2. BIOS uses IO-APIC mode Interrupt Source Override
111 if (!acpi_get_override_irq(gsi
, &t
, &p
)) {
112 t
= t
? ACPI_LEVEL_SENSITIVE
: ACPI_EDGE_SENSITIVE
;
113 p
= p
? ACPI_ACTIVE_LOW
: ACPI_ACTIVE_HIGH
;
115 if (triggering
!= t
|| polarity
!= p
) {
116 dev_warn(&dev
->dev
, "IRQ %d override to %s, %s\n",
117 gsi
, t
? "edge":"level", p
? "low":"high");
123 flags
= irq_flags(triggering
, polarity
, shareable
);
124 irq
= acpi_register_gsi(gsi
, triggering
, polarity
);
126 pcibios_penalize_isa_irq(irq
, 1);
128 flags
|= IORESOURCE_DISABLED
;
130 pnp_add_irq_resource(dev
, irq
, flags
);
133 static int dma_flags(int type
, int bus_master
, int transfer
)
138 flags
|= IORESOURCE_DMA_MASTER
;
140 case ACPI_COMPATIBILITY
:
141 flags
|= IORESOURCE_DMA_COMPATIBLE
;
144 flags
|= IORESOURCE_DMA_TYPEA
;
147 flags
|= IORESOURCE_DMA_TYPEB
;
150 flags
|= IORESOURCE_DMA_TYPEF
;
153 /* Set a default value ? */
154 flags
|= IORESOURCE_DMA_COMPATIBLE
;
155 pnp_err("Invalid DMA type");
158 case ACPI_TRANSFER_8
:
159 flags
|= IORESOURCE_DMA_8BIT
;
161 case ACPI_TRANSFER_8_16
:
162 flags
|= IORESOURCE_DMA_8AND16BIT
;
164 case ACPI_TRANSFER_16
:
165 flags
|= IORESOURCE_DMA_16BIT
;
168 /* Set a default value ? */
169 flags
|= IORESOURCE_DMA_8AND16BIT
;
170 pnp_err("Invalid DMA transfer type");
176 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev
*dev
, u64 start
,
177 u64 len
, int io_decode
)
180 u64 end
= start
+ len
- 1;
182 if (io_decode
== ACPI_DECODE_16
)
183 flags
|= IORESOURCE_IO_16BIT_ADDR
;
184 if (len
== 0 || end
>= 0x10003)
185 flags
|= IORESOURCE_DISABLED
;
187 pnp_add_io_resource(dev
, start
, end
, flags
);
190 static void pnpacpi_parse_allocated_memresource(struct pnp_dev
*dev
,
195 u64 end
= start
+ len
- 1;
198 flags
|= IORESOURCE_DISABLED
;
199 if (write_protect
== ACPI_READ_WRITE_MEMORY
)
200 flags
|= IORESOURCE_MEM_WRITEABLE
;
202 pnp_add_mem_resource(dev
, start
, end
, flags
);
205 static void pnpacpi_parse_allocated_address_space(struct pnp_dev
*dev
,
206 struct acpi_resource
*res
)
208 struct acpi_resource_address64 addr
, *p
= &addr
;
211 status
= acpi_resource_to_address64(res
, p
);
212 if (!ACPI_SUCCESS(status
)) {
213 dev_warn(&dev
->dev
, "failed to convert resource type %d\n",
218 if (p
->producer_consumer
== ACPI_PRODUCER
)
221 if (p
->resource_type
== ACPI_MEMORY_RANGE
)
222 pnpacpi_parse_allocated_memresource(dev
,
223 p
->minimum
, p
->address_length
,
224 p
->info
.mem
.write_protect
);
225 else if (p
->resource_type
== ACPI_IO_RANGE
)
226 pnpacpi_parse_allocated_ioresource(dev
,
227 p
->minimum
, p
->address_length
,
228 p
->granularity
== 0xfff ? ACPI_DECODE_10
:
232 static acpi_status
pnpacpi_allocated_resource(struct acpi_resource
*res
,
235 struct pnp_dev
*dev
= data
;
236 struct acpi_resource_irq
*irq
;
237 struct acpi_resource_dma
*dma
;
238 struct acpi_resource_io
*io
;
239 struct acpi_resource_fixed_io
*fixed_io
;
240 struct acpi_resource_memory24
*memory24
;
241 struct acpi_resource_memory32
*memory32
;
242 struct acpi_resource_fixed_memory32
*fixed_memory32
;
243 struct acpi_resource_extended_irq
*extended_irq
;
247 case ACPI_RESOURCE_TYPE_IRQ
:
249 * Per spec, only one interrupt per descriptor is allowed in
250 * _CRS, but some firmware violates this, so parse them all.
252 irq
= &res
->data
.irq
;
253 if (irq
->interrupt_count
== 0)
254 pnp_add_irq_resource(dev
, 0, IORESOURCE_DISABLED
);
256 for (i
= 0; i
< irq
->interrupt_count
; i
++) {
257 pnpacpi_parse_allocated_irqresource(dev
,
265 * The IRQ encoder puts a single interrupt in each
266 * descriptor, so if a _CRS descriptor has more than
267 * one interrupt, we won't be able to re-encode it.
269 if (pnp_can_write(dev
) && irq
->interrupt_count
> 1) {
270 dev_warn(&dev
->dev
, "multiple interrupts in "
271 "_CRS descriptor; configuration can't "
273 dev
->capabilities
&= ~PNP_WRITE
;
278 case ACPI_RESOURCE_TYPE_DMA
:
279 dma
= &res
->data
.dma
;
280 if (dma
->channel_count
> 0 && dma
->channels
[0] != (u8
) -1)
281 flags
= dma_flags(dma
->type
, dma
->bus_master
,
284 flags
= IORESOURCE_DISABLED
;
285 pnp_add_dma_resource(dev
, dma
->channels
[0], flags
);
288 case ACPI_RESOURCE_TYPE_IO
:
290 pnpacpi_parse_allocated_ioresource(dev
,
296 case ACPI_RESOURCE_TYPE_START_DEPENDENT
:
297 case ACPI_RESOURCE_TYPE_END_DEPENDENT
:
300 case ACPI_RESOURCE_TYPE_FIXED_IO
:
301 fixed_io
= &res
->data
.fixed_io
;
302 pnpacpi_parse_allocated_ioresource(dev
,
304 fixed_io
->address_length
,
308 case ACPI_RESOURCE_TYPE_VENDOR
:
311 case ACPI_RESOURCE_TYPE_END_TAG
:
314 case ACPI_RESOURCE_TYPE_MEMORY24
:
315 memory24
= &res
->data
.memory24
;
316 pnpacpi_parse_allocated_memresource(dev
,
318 memory24
->address_length
,
319 memory24
->write_protect
);
321 case ACPI_RESOURCE_TYPE_MEMORY32
:
322 memory32
= &res
->data
.memory32
;
323 pnpacpi_parse_allocated_memresource(dev
,
325 memory32
->address_length
,
326 memory32
->write_protect
);
328 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
329 fixed_memory32
= &res
->data
.fixed_memory32
;
330 pnpacpi_parse_allocated_memresource(dev
,
331 fixed_memory32
->address
,
332 fixed_memory32
->address_length
,
333 fixed_memory32
->write_protect
);
335 case ACPI_RESOURCE_TYPE_ADDRESS16
:
336 case ACPI_RESOURCE_TYPE_ADDRESS32
:
337 case ACPI_RESOURCE_TYPE_ADDRESS64
:
338 pnpacpi_parse_allocated_address_space(dev
, res
);
341 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
342 if (res
->data
.ext_address64
.producer_consumer
== ACPI_PRODUCER
)
346 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
347 extended_irq
= &res
->data
.extended_irq
;
348 if (extended_irq
->producer_consumer
== ACPI_PRODUCER
)
351 if (extended_irq
->interrupt_count
== 0)
352 pnp_add_irq_resource(dev
, 0, IORESOURCE_DISABLED
);
354 for (i
= 0; i
< extended_irq
->interrupt_count
; i
++) {
355 pnpacpi_parse_allocated_irqresource(dev
,
356 extended_irq
->interrupts
[i
],
357 extended_irq
->triggering
,
358 extended_irq
->polarity
,
359 extended_irq
->sharable
);
363 * The IRQ encoder puts a single interrupt in each
364 * descriptor, so if a _CRS descriptor has more than
365 * one interrupt, we won't be able to re-encode it.
367 if (pnp_can_write(dev
) &&
368 extended_irq
->interrupt_count
> 1) {
369 dev_warn(&dev
->dev
, "multiple interrupts in "
370 "_CRS descriptor; configuration can't "
372 dev
->capabilities
&= ~PNP_WRITE
;
377 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER
:
381 dev_warn(&dev
->dev
, "unknown resource type %d in _CRS\n",
389 int pnpacpi_parse_allocated_resource(struct pnp_dev
*dev
)
391 acpi_handle handle
= dev
->data
;
394 dev_dbg(&dev
->dev
, "parse allocated resources\n");
396 pnp_init_resources(dev
);
398 status
= acpi_walk_resources(handle
, METHOD_NAME__CRS
,
399 pnpacpi_allocated_resource
, dev
);
401 if (ACPI_FAILURE(status
)) {
402 if (status
!= AE_NOT_FOUND
)
403 dev_err(&dev
->dev
, "can't evaluate _CRS: %d", status
);
409 static __init
void pnpacpi_parse_dma_option(struct pnp_dev
*dev
,
410 unsigned int option_flags
,
411 struct acpi_resource_dma
*p
)
414 unsigned char map
= 0, flags
;
416 if (p
->channel_count
== 0)
419 for (i
= 0; i
< p
->channel_count
; i
++)
420 map
|= 1 << p
->channels
[i
];
422 flags
= dma_flags(p
->type
, p
->bus_master
, p
->transfer
);
423 pnp_register_dma_resource(dev
, option_flags
, map
, flags
);
426 static __init
void pnpacpi_parse_irq_option(struct pnp_dev
*dev
,
427 unsigned int option_flags
,
428 struct acpi_resource_irq
*p
)
434 if (p
->interrupt_count
== 0)
437 bitmap_zero(map
.bits
, PNP_IRQ_NR
);
438 for (i
= 0; i
< p
->interrupt_count
; i
++)
439 if (p
->interrupts
[i
])
440 __set_bit(p
->interrupts
[i
], map
.bits
);
442 flags
= irq_flags(p
->triggering
, p
->polarity
, p
->sharable
);
443 pnp_register_irq_resource(dev
, option_flags
, &map
, flags
);
446 static __init
void pnpacpi_parse_ext_irq_option(struct pnp_dev
*dev
,
447 unsigned int option_flags
,
448 struct acpi_resource_extended_irq
*p
)
454 if (p
->interrupt_count
== 0)
457 bitmap_zero(map
.bits
, PNP_IRQ_NR
);
458 for (i
= 0; i
< p
->interrupt_count
; i
++) {
459 if (p
->interrupts
[i
]) {
460 if (p
->interrupts
[i
] < PNP_IRQ_NR
)
461 __set_bit(p
->interrupts
[i
], map
.bits
);
463 dev_err(&dev
->dev
, "ignoring IRQ %d option "
464 "(too large for %d entry bitmap)\n",
465 p
->interrupts
[i
], PNP_IRQ_NR
);
469 flags
= irq_flags(p
->triggering
, p
->polarity
, p
->sharable
);
470 pnp_register_irq_resource(dev
, option_flags
, &map
, flags
);
473 static __init
void pnpacpi_parse_port_option(struct pnp_dev
*dev
,
474 unsigned int option_flags
,
475 struct acpi_resource_io
*io
)
477 unsigned char flags
= 0;
479 if (io
->address_length
== 0)
482 if (io
->io_decode
== ACPI_DECODE_16
)
483 flags
= IORESOURCE_IO_16BIT_ADDR
;
484 pnp_register_port_resource(dev
, option_flags
, io
->minimum
, io
->maximum
,
485 io
->alignment
, io
->address_length
, flags
);
488 static __init
void pnpacpi_parse_fixed_port_option(struct pnp_dev
*dev
,
489 unsigned int option_flags
,
490 struct acpi_resource_fixed_io
*io
)
492 if (io
->address_length
== 0)
495 pnp_register_port_resource(dev
, option_flags
, io
->address
, io
->address
,
496 0, io
->address_length
, IORESOURCE_IO_FIXED
);
499 static __init
void pnpacpi_parse_mem24_option(struct pnp_dev
*dev
,
500 unsigned int option_flags
,
501 struct acpi_resource_memory24
*p
)
503 unsigned char flags
= 0;
505 if (p
->address_length
== 0)
508 if (p
->write_protect
== ACPI_READ_WRITE_MEMORY
)
509 flags
= IORESOURCE_MEM_WRITEABLE
;
510 pnp_register_mem_resource(dev
, option_flags
, p
->minimum
, p
->maximum
,
511 p
->alignment
, p
->address_length
, flags
);
514 static __init
void pnpacpi_parse_mem32_option(struct pnp_dev
*dev
,
515 unsigned int option_flags
,
516 struct acpi_resource_memory32
*p
)
518 unsigned char flags
= 0;
520 if (p
->address_length
== 0)
523 if (p
->write_protect
== ACPI_READ_WRITE_MEMORY
)
524 flags
= IORESOURCE_MEM_WRITEABLE
;
525 pnp_register_mem_resource(dev
, option_flags
, p
->minimum
, p
->maximum
,
526 p
->alignment
, p
->address_length
, flags
);
529 static __init
void pnpacpi_parse_fixed_mem32_option(struct pnp_dev
*dev
,
530 unsigned int option_flags
,
531 struct acpi_resource_fixed_memory32
*p
)
533 unsigned char flags
= 0;
535 if (p
->address_length
== 0)
538 if (p
->write_protect
== ACPI_READ_WRITE_MEMORY
)
539 flags
= IORESOURCE_MEM_WRITEABLE
;
540 pnp_register_mem_resource(dev
, option_flags
, p
->address
, p
->address
,
541 0, p
->address_length
, flags
);
544 static __init
void pnpacpi_parse_address_option(struct pnp_dev
*dev
,
545 unsigned int option_flags
,
546 struct acpi_resource
*r
)
548 struct acpi_resource_address64 addr
, *p
= &addr
;
550 unsigned char flags
= 0;
552 status
= acpi_resource_to_address64(r
, p
);
553 if (!ACPI_SUCCESS(status
)) {
554 pnp_warn("PnPACPI: failed to convert resource type %d",
559 if (p
->address_length
== 0)
562 if (p
->resource_type
== ACPI_MEMORY_RANGE
) {
563 if (p
->info
.mem
.write_protect
== ACPI_READ_WRITE_MEMORY
)
564 flags
= IORESOURCE_MEM_WRITEABLE
;
565 pnp_register_mem_resource(dev
, option_flags
, p
->minimum
,
566 p
->minimum
, 0, p
->address_length
,
568 } else if (p
->resource_type
== ACPI_IO_RANGE
)
569 pnp_register_port_resource(dev
, option_flags
, p
->minimum
,
570 p
->minimum
, 0, p
->address_length
,
571 IORESOURCE_IO_FIXED
);
574 struct acpipnp_parse_option_s
{
576 unsigned int option_flags
;
579 static __init acpi_status
pnpacpi_option_resource(struct acpi_resource
*res
,
583 struct acpipnp_parse_option_s
*parse_data
= data
;
584 struct pnp_dev
*dev
= parse_data
->dev
;
585 unsigned int option_flags
= parse_data
->option_flags
;
588 case ACPI_RESOURCE_TYPE_IRQ
:
589 pnpacpi_parse_irq_option(dev
, option_flags
, &res
->data
.irq
);
592 case ACPI_RESOURCE_TYPE_DMA
:
593 pnpacpi_parse_dma_option(dev
, option_flags
, &res
->data
.dma
);
596 case ACPI_RESOURCE_TYPE_START_DEPENDENT
:
597 switch (res
->data
.start_dpf
.compatibility_priority
) {
598 case ACPI_GOOD_CONFIGURATION
:
599 priority
= PNP_RES_PRIORITY_PREFERRED
;
602 case ACPI_ACCEPTABLE_CONFIGURATION
:
603 priority
= PNP_RES_PRIORITY_ACCEPTABLE
;
606 case ACPI_SUB_OPTIMAL_CONFIGURATION
:
607 priority
= PNP_RES_PRIORITY_FUNCTIONAL
;
610 priority
= PNP_RES_PRIORITY_INVALID
;
613 parse_data
->option_flags
= pnp_new_dependent_set(dev
, priority
);
616 case ACPI_RESOURCE_TYPE_END_DEPENDENT
:
617 parse_data
->option_flags
= 0;
620 case ACPI_RESOURCE_TYPE_IO
:
621 pnpacpi_parse_port_option(dev
, option_flags
, &res
->data
.io
);
624 case ACPI_RESOURCE_TYPE_FIXED_IO
:
625 pnpacpi_parse_fixed_port_option(dev
, option_flags
,
626 &res
->data
.fixed_io
);
629 case ACPI_RESOURCE_TYPE_VENDOR
:
630 case ACPI_RESOURCE_TYPE_END_TAG
:
633 case ACPI_RESOURCE_TYPE_MEMORY24
:
634 pnpacpi_parse_mem24_option(dev
, option_flags
,
635 &res
->data
.memory24
);
638 case ACPI_RESOURCE_TYPE_MEMORY32
:
639 pnpacpi_parse_mem32_option(dev
, option_flags
,
640 &res
->data
.memory32
);
643 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
644 pnpacpi_parse_fixed_mem32_option(dev
, option_flags
,
645 &res
->data
.fixed_memory32
);
648 case ACPI_RESOURCE_TYPE_ADDRESS16
:
649 case ACPI_RESOURCE_TYPE_ADDRESS32
:
650 case ACPI_RESOURCE_TYPE_ADDRESS64
:
651 pnpacpi_parse_address_option(dev
, option_flags
, res
);
654 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
657 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
658 pnpacpi_parse_ext_irq_option(dev
, option_flags
,
659 &res
->data
.extended_irq
);
662 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER
:
666 dev_warn(&dev
->dev
, "unknown resource type %d in _PRS\n",
674 int __init
pnpacpi_parse_resource_option_data(struct pnp_dev
*dev
)
676 acpi_handle handle
= dev
->data
;
678 struct acpipnp_parse_option_s parse_data
;
680 dev_dbg(&dev
->dev
, "parse resource options\n");
682 parse_data
.dev
= dev
;
683 parse_data
.option_flags
= 0;
685 status
= acpi_walk_resources(handle
, METHOD_NAME__PRS
,
686 pnpacpi_option_resource
, &parse_data
);
688 if (ACPI_FAILURE(status
)) {
689 if (status
!= AE_NOT_FOUND
)
690 dev_err(&dev
->dev
, "can't evaluate _PRS: %d", status
);
696 static int pnpacpi_supported_resource(struct acpi_resource
*res
)
699 case ACPI_RESOURCE_TYPE_IRQ
:
700 case ACPI_RESOURCE_TYPE_DMA
:
701 case ACPI_RESOURCE_TYPE_IO
:
702 case ACPI_RESOURCE_TYPE_FIXED_IO
:
703 case ACPI_RESOURCE_TYPE_MEMORY24
:
704 case ACPI_RESOURCE_TYPE_MEMORY32
:
705 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
706 case ACPI_RESOURCE_TYPE_ADDRESS16
:
707 case ACPI_RESOURCE_TYPE_ADDRESS32
:
708 case ACPI_RESOURCE_TYPE_ADDRESS64
:
709 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
718 static acpi_status
pnpacpi_count_resources(struct acpi_resource
*res
,
723 if (pnpacpi_supported_resource(res
))
728 static acpi_status
pnpacpi_type_resources(struct acpi_resource
*res
, void *data
)
730 struct acpi_resource
**resource
= data
;
732 if (pnpacpi_supported_resource(res
)) {
733 (*resource
)->type
= res
->type
;
734 (*resource
)->length
= sizeof(struct acpi_resource
);
735 if (res
->type
== ACPI_RESOURCE_TYPE_IRQ
)
736 (*resource
)->data
.irq
.descriptor_length
=
737 res
->data
.irq
.descriptor_length
;
744 int pnpacpi_build_resource_template(struct pnp_dev
*dev
,
745 struct acpi_buffer
*buffer
)
747 acpi_handle handle
= dev
->data
;
748 struct acpi_resource
*resource
;
752 status
= acpi_walk_resources(handle
, METHOD_NAME__CRS
,
753 pnpacpi_count_resources
, &res_cnt
);
754 if (ACPI_FAILURE(status
)) {
755 dev_err(&dev
->dev
, "can't evaluate _CRS: %d\n", status
);
760 buffer
->length
= sizeof(struct acpi_resource
) * (res_cnt
+ 1) + 1;
761 buffer
->pointer
= kzalloc(buffer
->length
- 1, GFP_KERNEL
);
762 if (!buffer
->pointer
)
765 resource
= (struct acpi_resource
*)buffer
->pointer
;
766 status
= acpi_walk_resources(handle
, METHOD_NAME__CRS
,
767 pnpacpi_type_resources
, &resource
);
768 if (ACPI_FAILURE(status
)) {
769 kfree(buffer
->pointer
);
770 dev_err(&dev
->dev
, "can't evaluate _CRS: %d\n", status
);
773 /* resource will pointer the end resource now */
774 resource
->type
= ACPI_RESOURCE_TYPE_END_TAG
;
779 static void pnpacpi_encode_irq(struct pnp_dev
*dev
,
780 struct acpi_resource
*resource
,
783 struct acpi_resource_irq
*irq
= &resource
->data
.irq
;
784 int triggering
, polarity
, shareable
;
786 if (!pnp_resource_enabled(p
)) {
787 irq
->interrupt_count
= 0;
788 dev_dbg(&dev
->dev
, " encode irq (%s)\n",
789 p
? "disabled" : "missing");
793 decode_irq_flags(dev
, p
->flags
, &triggering
, &polarity
, &shareable
);
794 irq
->triggering
= triggering
;
795 irq
->polarity
= polarity
;
796 irq
->sharable
= shareable
;
797 irq
->interrupt_count
= 1;
798 irq
->interrupts
[0] = p
->start
;
800 dev_dbg(&dev
->dev
, " encode irq %d %s %s %s (%d-byte descriptor)\n",
802 triggering
== ACPI_LEVEL_SENSITIVE
? "level" : "edge",
803 polarity
== ACPI_ACTIVE_LOW
? "low" : "high",
804 irq
->sharable
== ACPI_SHARED
? "shared" : "exclusive",
805 irq
->descriptor_length
);
808 static void pnpacpi_encode_ext_irq(struct pnp_dev
*dev
,
809 struct acpi_resource
*resource
,
812 struct acpi_resource_extended_irq
*extended_irq
= &resource
->data
.extended_irq
;
813 int triggering
, polarity
, shareable
;
815 if (!pnp_resource_enabled(p
)) {
816 extended_irq
->interrupt_count
= 0;
817 dev_dbg(&dev
->dev
, " encode extended irq (%s)\n",
818 p
? "disabled" : "missing");
822 decode_irq_flags(dev
, p
->flags
, &triggering
, &polarity
, &shareable
);
823 extended_irq
->producer_consumer
= ACPI_CONSUMER
;
824 extended_irq
->triggering
= triggering
;
825 extended_irq
->polarity
= polarity
;
826 extended_irq
->sharable
= shareable
;
827 extended_irq
->interrupt_count
= 1;
828 extended_irq
->interrupts
[0] = p
->start
;
830 dev_dbg(&dev
->dev
, " encode irq %d %s %s %s\n", (int) p
->start
,
831 triggering
== ACPI_LEVEL_SENSITIVE
? "level" : "edge",
832 polarity
== ACPI_ACTIVE_LOW
? "low" : "high",
833 extended_irq
->sharable
== ACPI_SHARED
? "shared" : "exclusive");
836 static void pnpacpi_encode_dma(struct pnp_dev
*dev
,
837 struct acpi_resource
*resource
,
840 struct acpi_resource_dma
*dma
= &resource
->data
.dma
;
842 if (!pnp_resource_enabled(p
)) {
843 dma
->channel_count
= 0;
844 dev_dbg(&dev
->dev
, " encode dma (%s)\n",
845 p
? "disabled" : "missing");
849 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
850 switch (p
->flags
& IORESOURCE_DMA_SPEED_MASK
) {
851 case IORESOURCE_DMA_TYPEA
:
852 dma
->type
= ACPI_TYPE_A
;
854 case IORESOURCE_DMA_TYPEB
:
855 dma
->type
= ACPI_TYPE_B
;
857 case IORESOURCE_DMA_TYPEF
:
858 dma
->type
= ACPI_TYPE_F
;
861 dma
->type
= ACPI_COMPATIBILITY
;
864 switch (p
->flags
& IORESOURCE_DMA_TYPE_MASK
) {
865 case IORESOURCE_DMA_8BIT
:
866 dma
->transfer
= ACPI_TRANSFER_8
;
868 case IORESOURCE_DMA_8AND16BIT
:
869 dma
->transfer
= ACPI_TRANSFER_8_16
;
872 dma
->transfer
= ACPI_TRANSFER_16
;
875 dma
->bus_master
= !!(p
->flags
& IORESOURCE_DMA_MASTER
);
876 dma
->channel_count
= 1;
877 dma
->channels
[0] = p
->start
;
879 dev_dbg(&dev
->dev
, " encode dma %d "
880 "type %#x transfer %#x master %d\n",
881 (int) p
->start
, dma
->type
, dma
->transfer
, dma
->bus_master
);
884 static void pnpacpi_encode_io(struct pnp_dev
*dev
,
885 struct acpi_resource
*resource
,
888 struct acpi_resource_io
*io
= &resource
->data
.io
;
890 if (pnp_resource_enabled(p
)) {
891 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
892 io
->io_decode
= (p
->flags
& IORESOURCE_IO_16BIT_ADDR
) ?
893 ACPI_DECODE_16
: ACPI_DECODE_10
;
894 io
->minimum
= p
->start
;
895 io
->maximum
= p
->end
;
896 io
->alignment
= 0; /* Correct? */
897 io
->address_length
= p
->end
- p
->start
+ 1;
900 io
->address_length
= 0;
903 dev_dbg(&dev
->dev
, " encode io %#x-%#x decode %#x\n", io
->minimum
,
904 io
->minimum
+ io
->address_length
- 1, io
->io_decode
);
907 static void pnpacpi_encode_fixed_io(struct pnp_dev
*dev
,
908 struct acpi_resource
*resource
,
911 struct acpi_resource_fixed_io
*fixed_io
= &resource
->data
.fixed_io
;
913 if (pnp_resource_enabled(p
)) {
914 fixed_io
->address
= p
->start
;
915 fixed_io
->address_length
= p
->end
- p
->start
+ 1;
917 fixed_io
->address
= 0;
918 fixed_io
->address_length
= 0;
921 dev_dbg(&dev
->dev
, " encode fixed_io %#x-%#x\n", fixed_io
->address
,
922 fixed_io
->address
+ fixed_io
->address_length
- 1);
925 static void pnpacpi_encode_mem24(struct pnp_dev
*dev
,
926 struct acpi_resource
*resource
,
929 struct acpi_resource_memory24
*memory24
= &resource
->data
.memory24
;
931 if (pnp_resource_enabled(p
)) {
932 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
933 memory24
->write_protect
= p
->flags
& IORESOURCE_MEM_WRITEABLE
?
934 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
935 memory24
->minimum
= p
->start
;
936 memory24
->maximum
= p
->end
;
937 memory24
->alignment
= 0;
938 memory24
->address_length
= p
->end
- p
->start
+ 1;
940 memory24
->minimum
= 0;
941 memory24
->address_length
= 0;
944 dev_dbg(&dev
->dev
, " encode mem24 %#x-%#x write_protect %#x\n",
946 memory24
->minimum
+ memory24
->address_length
- 1,
947 memory24
->write_protect
);
950 static void pnpacpi_encode_mem32(struct pnp_dev
*dev
,
951 struct acpi_resource
*resource
,
954 struct acpi_resource_memory32
*memory32
= &resource
->data
.memory32
;
956 if (pnp_resource_enabled(p
)) {
957 memory32
->write_protect
= p
->flags
& IORESOURCE_MEM_WRITEABLE
?
958 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
959 memory32
->minimum
= p
->start
;
960 memory32
->maximum
= p
->end
;
961 memory32
->alignment
= 0;
962 memory32
->address_length
= p
->end
- p
->start
+ 1;
964 memory32
->minimum
= 0;
965 memory32
->alignment
= 0;
968 dev_dbg(&dev
->dev
, " encode mem32 %#x-%#x write_protect %#x\n",
970 memory32
->minimum
+ memory32
->address_length
- 1,
971 memory32
->write_protect
);
974 static void pnpacpi_encode_fixed_mem32(struct pnp_dev
*dev
,
975 struct acpi_resource
*resource
,
978 struct acpi_resource_fixed_memory32
*fixed_memory32
= &resource
->data
.fixed_memory32
;
980 if (pnp_resource_enabled(p
)) {
981 fixed_memory32
->write_protect
=
982 p
->flags
& IORESOURCE_MEM_WRITEABLE
?
983 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
984 fixed_memory32
->address
= p
->start
;
985 fixed_memory32
->address_length
= p
->end
- p
->start
+ 1;
987 fixed_memory32
->address
= 0;
988 fixed_memory32
->address_length
= 0;
991 dev_dbg(&dev
->dev
, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
992 fixed_memory32
->address
,
993 fixed_memory32
->address
+ fixed_memory32
->address_length
- 1,
994 fixed_memory32
->write_protect
);
997 int pnpacpi_encode_resources(struct pnp_dev
*dev
, struct acpi_buffer
*buffer
)
1000 /* pnpacpi_build_resource_template allocates extra mem */
1001 int res_cnt
= (buffer
->length
- 1) / sizeof(struct acpi_resource
) - 1;
1002 struct acpi_resource
*resource
= buffer
->pointer
;
1003 int port
= 0, irq
= 0, dma
= 0, mem
= 0;
1005 dev_dbg(&dev
->dev
, "encode %d resources\n", res_cnt
);
1006 while (i
< res_cnt
) {
1007 switch (resource
->type
) {
1008 case ACPI_RESOURCE_TYPE_IRQ
:
1009 pnpacpi_encode_irq(dev
, resource
,
1010 pnp_get_resource(dev
, IORESOURCE_IRQ
, irq
));
1014 case ACPI_RESOURCE_TYPE_DMA
:
1015 pnpacpi_encode_dma(dev
, resource
,
1016 pnp_get_resource(dev
, IORESOURCE_DMA
, dma
));
1019 case ACPI_RESOURCE_TYPE_IO
:
1020 pnpacpi_encode_io(dev
, resource
,
1021 pnp_get_resource(dev
, IORESOURCE_IO
, port
));
1024 case ACPI_RESOURCE_TYPE_FIXED_IO
:
1025 pnpacpi_encode_fixed_io(dev
, resource
,
1026 pnp_get_resource(dev
, IORESOURCE_IO
, port
));
1029 case ACPI_RESOURCE_TYPE_MEMORY24
:
1030 pnpacpi_encode_mem24(dev
, resource
,
1031 pnp_get_resource(dev
, IORESOURCE_MEM
, mem
));
1034 case ACPI_RESOURCE_TYPE_MEMORY32
:
1035 pnpacpi_encode_mem32(dev
, resource
,
1036 pnp_get_resource(dev
, IORESOURCE_MEM
, mem
));
1039 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
1040 pnpacpi_encode_fixed_mem32(dev
, resource
,
1041 pnp_get_resource(dev
, IORESOURCE_MEM
, mem
));
1044 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
1045 pnpacpi_encode_ext_irq(dev
, resource
,
1046 pnp_get_resource(dev
, IORESOURCE_IRQ
, irq
));
1049 case ACPI_RESOURCE_TYPE_START_DEPENDENT
:
1050 case ACPI_RESOURCE_TYPE_END_DEPENDENT
:
1051 case ACPI_RESOURCE_TYPE_VENDOR
:
1052 case ACPI_RESOURCE_TYPE_END_TAG
:
1053 case ACPI_RESOURCE_TYPE_ADDRESS16
:
1054 case ACPI_RESOURCE_TYPE_ADDRESS32
:
1055 case ACPI_RESOURCE_TYPE_ADDRESS64
:
1056 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
1057 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER
:
1058 default: /* other type */
1059 dev_warn(&dev
->dev
, "can't encode unknown resource "
1060 "type %d\n", resource
->type
);