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>
27 #define valid_IRQ(i) (1)
29 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
35 static int irq_flags(int triggering
, int polarity
)
37 if (triggering
== ACPI_LEVEL_SENSITIVE
) {
38 if (polarity
== ACPI_ACTIVE_LOW
)
39 return IORESOURCE_IRQ_LOWLEVEL
;
41 return IORESOURCE_IRQ_HIGHLEVEL
;
43 if (polarity
== ACPI_ACTIVE_LOW
)
44 return IORESOURCE_IRQ_LOWEDGE
;
46 return IORESOURCE_IRQ_HIGHEDGE
;
50 static void decode_irq_flags(int flag
, int *triggering
, int *polarity
)
53 case IORESOURCE_IRQ_LOWLEVEL
:
54 *triggering
= ACPI_LEVEL_SENSITIVE
;
55 *polarity
= ACPI_ACTIVE_LOW
;
57 case IORESOURCE_IRQ_HIGHLEVEL
:
58 *triggering
= ACPI_LEVEL_SENSITIVE
;
59 *polarity
= ACPI_ACTIVE_HIGH
;
61 case IORESOURCE_IRQ_LOWEDGE
:
62 *triggering
= ACPI_EDGE_SENSITIVE
;
63 *polarity
= ACPI_ACTIVE_LOW
;
65 case IORESOURCE_IRQ_HIGHEDGE
:
66 *triggering
= ACPI_EDGE_SENSITIVE
;
67 *polarity
= ACPI_ACTIVE_HIGH
;
72 static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table
*res
,
73 u32 gsi
, int triggering
,
74 int polarity
, int shareable
)
79 static unsigned char warned
;
84 while (!(res
->irq_resource
[i
].flags
& IORESOURCE_UNSET
) &&
87 if (i
>= PNP_MAX_IRQ
) {
89 printk(KERN_WARNING
"pnpacpi: exceeded the max number"
90 " of IRQ resources: %d\n", PNP_MAX_IRQ
);
96 * in IO-APIC mode, use overrided attribute. Two reasons:
98 * 2. BIOS uses IO-APIC mode Interrupt Source Override
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
;
104 if (triggering
!= t
|| polarity
!= p
) {
105 pnp_warn("IRQ %d override to %s, %s",
106 gsi
, t
? "edge":"level", p
? "low":"high");
112 res
->irq_resource
[i
].flags
= IORESOURCE_IRQ
; // Also clears _UNSET flag
113 res
->irq_resource
[i
].flags
|= irq_flags(triggering
, polarity
);
114 irq
= acpi_register_gsi(gsi
, triggering
, polarity
);
116 res
->irq_resource
[i
].flags
|= IORESOURCE_DISABLED
;
121 res
->irq_resource
[i
].flags
|= IORESOURCE_IRQ_SHAREABLE
;
123 res
->irq_resource
[i
].start
= irq
;
124 res
->irq_resource
[i
].end
= irq
;
125 pcibios_penalize_isa_irq(irq
, 1);
128 static int dma_flags(int type
, int bus_master
, int transfer
)
133 flags
|= IORESOURCE_DMA_MASTER
;
135 case ACPI_COMPATIBILITY
:
136 flags
|= IORESOURCE_DMA_COMPATIBLE
;
139 flags
|= IORESOURCE_DMA_TYPEA
;
142 flags
|= IORESOURCE_DMA_TYPEB
;
145 flags
|= IORESOURCE_DMA_TYPEF
;
148 /* Set a default value ? */
149 flags
|= IORESOURCE_DMA_COMPATIBLE
;
150 pnp_err("Invalid DMA type");
153 case ACPI_TRANSFER_8
:
154 flags
|= IORESOURCE_DMA_8BIT
;
156 case ACPI_TRANSFER_8_16
:
157 flags
|= IORESOURCE_DMA_8AND16BIT
;
159 case ACPI_TRANSFER_16
:
160 flags
|= IORESOURCE_DMA_16BIT
;
163 /* Set a default value ? */
164 flags
|= IORESOURCE_DMA_8AND16BIT
;
165 pnp_err("Invalid DMA transfer type");
171 static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table
*res
,
173 int bus_master
, int transfer
)
176 static unsigned char warned
;
178 while (i
< PNP_MAX_DMA
&&
179 !(res
->dma_resource
[i
].flags
& IORESOURCE_UNSET
))
181 if (i
< PNP_MAX_DMA
) {
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
);
186 res
->dma_resource
[i
].flags
|= IORESOURCE_DISABLED
;
189 res
->dma_resource
[i
].start
= dma
;
190 res
->dma_resource
[i
].end
= dma
;
191 } else if (!warned
) {
192 printk(KERN_WARNING
"pnpacpi: exceeded the max number of DMA "
193 "resources: %d \n", PNP_MAX_DMA
);
198 static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table
*res
,
199 u64 io
, u64 len
, int io_decode
)
202 static unsigned char warned
;
204 while (!(res
->port_resource
[i
].flags
& IORESOURCE_UNSET
) &&
207 if (i
< PNP_MAX_PORT
) {
208 res
->port_resource
[i
].flags
= IORESOURCE_IO
; // Also clears _UNSET flag
209 if (io_decode
== ACPI_DECODE_16
)
210 res
->port_resource
[i
].flags
|= PNP_PORT_FLAG_16BITADDR
;
211 if (len
<= 0 || (io
+ len
- 1) >= 0x10003) {
212 res
->port_resource
[i
].flags
|= IORESOURCE_DISABLED
;
215 res
->port_resource
[i
].start
= io
;
216 res
->port_resource
[i
].end
= io
+ len
- 1;
217 } else if (!warned
) {
218 printk(KERN_WARNING
"pnpacpi: exceeded the max number of IO "
219 "resources: %d \n", PNP_MAX_PORT
);
224 static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table
*res
,
229 static unsigned char warned
;
231 while (!(res
->mem_resource
[i
].flags
& IORESOURCE_UNSET
) &&
234 if (i
< PNP_MAX_MEM
) {
235 res
->mem_resource
[i
].flags
= IORESOURCE_MEM
; // Also clears _UNSET flag
237 res
->mem_resource
[i
].flags
|= IORESOURCE_DISABLED
;
240 if (write_protect
== ACPI_READ_WRITE_MEMORY
)
241 res
->mem_resource
[i
].flags
|= IORESOURCE_MEM_WRITEABLE
;
243 res
->mem_resource
[i
].start
= mem
;
244 res
->mem_resource
[i
].end
= mem
+ len
- 1;
245 } else if (!warned
) {
246 printk(KERN_WARNING
"pnpacpi: exceeded the max number of mem "
247 "resources: %d\n", PNP_MAX_MEM
);
252 static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table
*res_table
,
253 struct acpi_resource
*res
)
255 struct acpi_resource_address64 addr
, *p
= &addr
;
258 status
= acpi_resource_to_address64(res
, p
);
259 if (!ACPI_SUCCESS(status
)) {
260 pnp_warn("PnPACPI: failed to convert resource type %d",
265 if (p
->producer_consumer
== ACPI_PRODUCER
)
268 if (p
->resource_type
== ACPI_MEMORY_RANGE
)
269 pnpacpi_parse_allocated_memresource(res_table
,
270 p
->minimum
, p
->address_length
,
271 p
->info
.mem
.write_protect
);
272 else if (p
->resource_type
== ACPI_IO_RANGE
)
273 pnpacpi_parse_allocated_ioresource(res_table
,
274 p
->minimum
, p
->address_length
,
275 p
->granularity
== 0xfff ? ACPI_DECODE_10
:
279 static acpi_status
pnpacpi_allocated_resource(struct acpi_resource
*res
,
282 struct pnp_resource_table
*res_table
= data
;
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
;
294 case ACPI_RESOURCE_TYPE_IRQ
:
296 * Per spec, only one interrupt per descriptor is allowed in
297 * _CRS, but some firmware violates this, so parse them all.
299 irq
= &res
->data
.irq
;
300 for (i
= 0; i
< irq
->interrupt_count
; i
++) {
301 pnpacpi_parse_allocated_irqresource(res_table
,
309 case ACPI_RESOURCE_TYPE_DMA
:
310 dma
= &res
->data
.dma
;
311 if (dma
->channel_count
> 0)
312 pnpacpi_parse_allocated_dmaresource(res_table
,
319 case ACPI_RESOURCE_TYPE_IO
:
321 pnpacpi_parse_allocated_ioresource(res_table
,
327 case ACPI_RESOURCE_TYPE_START_DEPENDENT
:
328 case ACPI_RESOURCE_TYPE_END_DEPENDENT
:
331 case ACPI_RESOURCE_TYPE_FIXED_IO
:
332 fixed_io
= &res
->data
.fixed_io
;
333 pnpacpi_parse_allocated_ioresource(res_table
,
335 fixed_io
->address_length
,
339 case ACPI_RESOURCE_TYPE_VENDOR
:
342 case ACPI_RESOURCE_TYPE_END_TAG
:
345 case ACPI_RESOURCE_TYPE_MEMORY24
:
346 memory24
= &res
->data
.memory24
;
347 pnpacpi_parse_allocated_memresource(res_table
,
349 memory24
->address_length
,
350 memory24
->write_protect
);
352 case ACPI_RESOURCE_TYPE_MEMORY32
:
353 memory32
= &res
->data
.memory32
;
354 pnpacpi_parse_allocated_memresource(res_table
,
356 memory32
->address_length
,
357 memory32
->write_protect
);
359 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
360 fixed_memory32
= &res
->data
.fixed_memory32
;
361 pnpacpi_parse_allocated_memresource(res_table
,
362 fixed_memory32
->address
,
363 fixed_memory32
->address_length
,
364 fixed_memory32
->write_protect
);
366 case ACPI_RESOURCE_TYPE_ADDRESS16
:
367 case ACPI_RESOURCE_TYPE_ADDRESS32
:
368 case ACPI_RESOURCE_TYPE_ADDRESS64
:
369 pnpacpi_parse_allocated_address_space(res_table
, res
);
372 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
373 if (res
->data
.ext_address64
.producer_consumer
== ACPI_PRODUCER
)
377 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
378 extended_irq
= &res
->data
.extended_irq
;
379 if (extended_irq
->producer_consumer
== ACPI_PRODUCER
)
382 for (i
= 0; i
< extended_irq
->interrupt_count
; i
++) {
383 pnpacpi_parse_allocated_irqresource(res_table
,
384 extended_irq
->interrupts
[i
],
385 extended_irq
->triggering
,
386 extended_irq
->polarity
,
387 extended_irq
->sharable
);
391 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER
:
395 pnp_warn("PnPACPI: unknown resource type %d", res
->type
);
402 acpi_status
pnpacpi_parse_allocated_resource(acpi_handle handle
,
403 struct pnp_resource_table
* res
)
405 /* Blank the resource table values */
406 pnp_init_resource_table(res
);
408 return acpi_walk_resources(handle
, METHOD_NAME__CRS
,
409 pnpacpi_allocated_resource
, res
);
412 static __init
void pnpacpi_parse_dma_option(struct pnp_option
*option
,
413 struct acpi_resource_dma
*p
)
418 if (p
->channel_count
== 0)
420 dma
= kzalloc(sizeof(struct pnp_dma
), GFP_KERNEL
);
424 for (i
= 0; i
< p
->channel_count
; i
++)
425 dma
->map
|= 1 << p
->channels
[i
];
427 dma
->flags
= dma_flags(p
->type
, p
->bus_master
, p
->transfer
);
429 pnp_register_dma_resource(option
, dma
);
432 static __init
void pnpacpi_parse_irq_option(struct pnp_option
*option
,
433 struct acpi_resource_irq
*p
)
438 if (p
->interrupt_count
== 0)
440 irq
= kzalloc(sizeof(struct pnp_irq
), GFP_KERNEL
);
444 for (i
= 0; i
< p
->interrupt_count
; i
++)
445 if (p
->interrupts
[i
])
446 __set_bit(p
->interrupts
[i
], irq
->map
);
447 irq
->flags
= irq_flags(p
->triggering
, p
->polarity
);
449 pnp_register_irq_resource(option
, irq
);
452 static __init
void pnpacpi_parse_ext_irq_option(struct pnp_option
*option
,
453 struct acpi_resource_extended_irq
*p
)
458 if (p
->interrupt_count
== 0)
460 irq
= kzalloc(sizeof(struct pnp_irq
), GFP_KERNEL
);
464 for (i
= 0; i
< p
->interrupt_count
; i
++)
465 if (p
->interrupts
[i
])
466 __set_bit(p
->interrupts
[i
], irq
->map
);
467 irq
->flags
= irq_flags(p
->triggering
, p
->polarity
);
469 pnp_register_irq_resource(option
, irq
);
472 static __init
void pnpacpi_parse_port_option(struct pnp_option
*option
,
473 struct acpi_resource_io
*io
)
475 struct pnp_port
*port
;
477 if (io
->address_length
== 0)
479 port
= kzalloc(sizeof(struct pnp_port
), GFP_KERNEL
);
482 port
->min
= io
->minimum
;
483 port
->max
= io
->maximum
;
484 port
->align
= io
->alignment
;
485 port
->size
= io
->address_length
;
486 port
->flags
= ACPI_DECODE_16
== io
->io_decode
?
487 PNP_PORT_FLAG_16BITADDR
: 0;
488 pnp_register_port_resource(option
, port
);
491 static __init
void pnpacpi_parse_fixed_port_option(struct pnp_option
*option
,
492 struct acpi_resource_fixed_io
*io
)
494 struct pnp_port
*port
;
496 if (io
->address_length
== 0)
498 port
= kzalloc(sizeof(struct pnp_port
), GFP_KERNEL
);
501 port
->min
= port
->max
= io
->address
;
502 port
->size
= io
->address_length
;
504 port
->flags
= PNP_PORT_FLAG_FIXED
;
505 pnp_register_port_resource(option
, port
);
508 static __init
void pnpacpi_parse_mem24_option(struct pnp_option
*option
,
509 struct acpi_resource_memory24
*p
)
513 if (p
->address_length
== 0)
515 mem
= kzalloc(sizeof(struct pnp_mem
), GFP_KERNEL
);
518 mem
->min
= p
->minimum
;
519 mem
->max
= p
->maximum
;
520 mem
->align
= p
->alignment
;
521 mem
->size
= p
->address_length
;
523 mem
->flags
= (ACPI_READ_WRITE_MEMORY
== p
->write_protect
) ?
524 IORESOURCE_MEM_WRITEABLE
: 0;
526 pnp_register_mem_resource(option
, mem
);
529 static __init
void pnpacpi_parse_mem32_option(struct pnp_option
*option
,
530 struct acpi_resource_memory32
*p
)
534 if (p
->address_length
== 0)
536 mem
= kzalloc(sizeof(struct pnp_mem
), GFP_KERNEL
);
539 mem
->min
= p
->minimum
;
540 mem
->max
= p
->maximum
;
541 mem
->align
= p
->alignment
;
542 mem
->size
= p
->address_length
;
544 mem
->flags
= (ACPI_READ_WRITE_MEMORY
== p
->write_protect
) ?
545 IORESOURCE_MEM_WRITEABLE
: 0;
547 pnp_register_mem_resource(option
, mem
);
550 static __init
void pnpacpi_parse_fixed_mem32_option(struct pnp_option
*option
,
551 struct acpi_resource_fixed_memory32
*p
)
555 if (p
->address_length
== 0)
557 mem
= kzalloc(sizeof(struct pnp_mem
), GFP_KERNEL
);
560 mem
->min
= mem
->max
= p
->address
;
561 mem
->size
= p
->address_length
;
564 mem
->flags
= (ACPI_READ_WRITE_MEMORY
== p
->write_protect
) ?
565 IORESOURCE_MEM_WRITEABLE
: 0;
567 pnp_register_mem_resource(option
, mem
);
570 static __init
void pnpacpi_parse_address_option(struct pnp_option
*option
,
571 struct acpi_resource
*r
)
573 struct acpi_resource_address64 addr
, *p
= &addr
;
576 struct pnp_port
*port
;
578 status
= acpi_resource_to_address64(r
, p
);
579 if (!ACPI_SUCCESS(status
)) {
580 pnp_warn("PnPACPI: failed to convert resource type %d",
585 if (p
->address_length
== 0)
588 if (p
->resource_type
== ACPI_MEMORY_RANGE
) {
589 mem
= kzalloc(sizeof(struct pnp_mem
), GFP_KERNEL
);
592 mem
->min
= mem
->max
= p
->minimum
;
593 mem
->size
= p
->address_length
;
595 mem
->flags
= (p
->info
.mem
.write_protect
==
596 ACPI_READ_WRITE_MEMORY
) ? IORESOURCE_MEM_WRITEABLE
598 pnp_register_mem_resource(option
, mem
);
599 } else if (p
->resource_type
== ACPI_IO_RANGE
) {
600 port
= kzalloc(sizeof(struct pnp_port
), GFP_KERNEL
);
603 port
->min
= port
->max
= p
->minimum
;
604 port
->size
= p
->address_length
;
606 port
->flags
= PNP_PORT_FLAG_FIXED
;
607 pnp_register_port_resource(option
, port
);
611 struct acpipnp_parse_option_s
{
612 struct pnp_option
*option
;
613 struct pnp_option
*option_independent
;
617 static __init acpi_status
pnpacpi_option_resource(struct acpi_resource
*res
,
621 struct acpipnp_parse_option_s
*parse_data
= data
;
622 struct pnp_dev
*dev
= parse_data
->dev
;
623 struct pnp_option
*option
= parse_data
->option
;
626 case ACPI_RESOURCE_TYPE_IRQ
:
627 pnpacpi_parse_irq_option(option
, &res
->data
.irq
);
630 case ACPI_RESOURCE_TYPE_DMA
:
631 pnpacpi_parse_dma_option(option
, &res
->data
.dma
);
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
;
640 case ACPI_ACCEPTABLE_CONFIGURATION
:
641 priority
= PNP_RES_PRIORITY_ACCEPTABLE
;
644 case ACPI_SUB_OPTIMAL_CONFIGURATION
:
645 priority
= PNP_RES_PRIORITY_FUNCTIONAL
;
648 priority
= PNP_RES_PRIORITY_INVALID
;
651 /* TBD: Consider performance/robustness bits */
652 option
= pnp_register_dependent_option(dev
, priority
);
655 parse_data
->option
= option
;
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");
664 parse_data
->option
= parse_data
->option_independent
;
665 parse_data
->option_independent
= NULL
;
668 case ACPI_RESOURCE_TYPE_IO
:
669 pnpacpi_parse_port_option(option
, &res
->data
.io
);
672 case ACPI_RESOURCE_TYPE_FIXED_IO
:
673 pnpacpi_parse_fixed_port_option(option
, &res
->data
.fixed_io
);
676 case ACPI_RESOURCE_TYPE_VENDOR
:
677 case ACPI_RESOURCE_TYPE_END_TAG
:
680 case ACPI_RESOURCE_TYPE_MEMORY24
:
681 pnpacpi_parse_mem24_option(option
, &res
->data
.memory24
);
684 case ACPI_RESOURCE_TYPE_MEMORY32
:
685 pnpacpi_parse_mem32_option(option
, &res
->data
.memory32
);
688 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
689 pnpacpi_parse_fixed_mem32_option(option
,
690 &res
->data
.fixed_memory32
);
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
);
699 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64
:
702 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
703 pnpacpi_parse_ext_irq_option(option
, &res
->data
.extended_irq
);
706 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER
:
710 pnp_warn("PnPACPI: unknown resource type %d", res
->type
);
717 acpi_status __init
pnpacpi_parse_resource_option_data(acpi_handle handle
,
721 struct acpipnp_parse_option_s parse_data
;
723 parse_data
.option
= pnp_register_independent_option(dev
);
724 if (!parse_data
.option
)
726 parse_data
.option_independent
= parse_data
.option
;
727 parse_data
.dev
= dev
;
728 status
= acpi_walk_resources(handle
, METHOD_NAME__PRS
,
729 pnpacpi_option_resource
, &parse_data
);
734 static int pnpacpi_supported_resource(struct acpi_resource
*res
)
737 case ACPI_RESOURCE_TYPE_IRQ
:
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
:
744 case ACPI_RESOURCE_TYPE_ADDRESS16
:
745 case ACPI_RESOURCE_TYPE_ADDRESS32
:
746 case ACPI_RESOURCE_TYPE_ADDRESS64
:
747 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
756 static acpi_status
pnpacpi_count_resources(struct acpi_resource
*res
,
761 if (pnpacpi_supported_resource(res
))
766 static acpi_status
pnpacpi_type_resources(struct acpi_resource
*res
, void *data
)
768 struct acpi_resource
**resource
= data
;
770 if (pnpacpi_supported_resource(res
)) {
771 (*resource
)->type
= res
->type
;
772 (*resource
)->length
= sizeof(struct acpi_resource
);
779 int pnpacpi_build_resource_template(acpi_handle handle
,
780 struct acpi_buffer
*buffer
)
782 struct acpi_resource
*resource
;
786 status
= acpi_walk_resources(handle
, METHOD_NAME__CRS
,
787 pnpacpi_count_resources
, &res_cnt
);
788 if (ACPI_FAILURE(status
)) {
789 pnp_err("Evaluate _CRS failed");
794 buffer
->length
= sizeof(struct acpi_resource
) * (res_cnt
+ 1) + 1;
795 buffer
->pointer
= kzalloc(buffer
->length
- 1, GFP_KERNEL
);
796 if (!buffer
->pointer
)
798 pnp_dbg("Res cnt %d", res_cnt
);
799 resource
= (struct acpi_resource
*)buffer
->pointer
;
800 status
= acpi_walk_resources(handle
, METHOD_NAME__CRS
,
801 pnpacpi_type_resources
, &resource
);
802 if (ACPI_FAILURE(status
)) {
803 kfree(buffer
->pointer
);
804 pnp_err("Evaluate _CRS failed");
807 /* resource will pointer the end resource now */
808 resource
->type
= ACPI_RESOURCE_TYPE_END_TAG
;
813 static void pnpacpi_encode_irq(struct acpi_resource
*resource
,
816 struct acpi_resource_irq
*irq
= &resource
->data
.irq
;
817 int triggering
, polarity
;
819 decode_irq_flags(p
->flags
& IORESOURCE_BITS
, &triggering
, &polarity
);
820 irq
->triggering
= triggering
;
821 irq
->polarity
= polarity
;
822 if (triggering
== ACPI_EDGE_SENSITIVE
)
823 irq
->sharable
= ACPI_EXCLUSIVE
;
825 irq
->sharable
= ACPI_SHARED
;
826 irq
->interrupt_count
= 1;
827 irq
->interrupts
[0] = p
->start
;
830 static void pnpacpi_encode_ext_irq(struct acpi_resource
*resource
,
833 struct acpi_resource_extended_irq
*extended_irq
= &resource
->data
.extended_irq
;
834 int triggering
, polarity
;
836 decode_irq_flags(p
->flags
& IORESOURCE_BITS
, &triggering
, &polarity
);
837 extended_irq
->producer_consumer
= ACPI_CONSUMER
;
838 extended_irq
->triggering
= triggering
;
839 extended_irq
->polarity
= polarity
;
840 if (triggering
== ACPI_EDGE_SENSITIVE
)
841 extended_irq
->sharable
= ACPI_EXCLUSIVE
;
843 extended_irq
->sharable
= ACPI_SHARED
;
844 extended_irq
->interrupt_count
= 1;
845 extended_irq
->interrupts
[0] = p
->start
;
848 static void pnpacpi_encode_dma(struct acpi_resource
*resource
,
851 struct acpi_resource_dma
*dma
= &resource
->data
.dma
;
853 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
854 switch (p
->flags
& IORESOURCE_DMA_SPEED_MASK
) {
855 case IORESOURCE_DMA_TYPEA
:
856 dma
->type
= ACPI_TYPE_A
;
858 case IORESOURCE_DMA_TYPEB
:
859 dma
->type
= ACPI_TYPE_B
;
861 case IORESOURCE_DMA_TYPEF
:
862 dma
->type
= ACPI_TYPE_F
;
865 dma
->type
= ACPI_COMPATIBILITY
;
868 switch (p
->flags
& IORESOURCE_DMA_TYPE_MASK
) {
869 case IORESOURCE_DMA_8BIT
:
870 dma
->transfer
= ACPI_TRANSFER_8
;
872 case IORESOURCE_DMA_8AND16BIT
:
873 dma
->transfer
= ACPI_TRANSFER_8_16
;
876 dma
->transfer
= ACPI_TRANSFER_16
;
879 dma
->bus_master
= !!(p
->flags
& IORESOURCE_DMA_MASTER
);
880 dma
->channel_count
= 1;
881 dma
->channels
[0] = p
->start
;
884 static void pnpacpi_encode_io(struct acpi_resource
*resource
,
887 struct acpi_resource_io
*io
= &resource
->data
.io
;
889 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
890 io
->io_decode
= (p
->flags
& PNP_PORT_FLAG_16BITADDR
) ?
891 ACPI_DECODE_16
: ACPI_DECODE_10
;
892 io
->minimum
= p
->start
;
893 io
->maximum
= p
->end
;
894 io
->alignment
= 0; /* Correct? */
895 io
->address_length
= p
->end
- p
->start
+ 1;
898 static void pnpacpi_encode_fixed_io(struct acpi_resource
*resource
,
901 struct acpi_resource_fixed_io
*fixed_io
= &resource
->data
.fixed_io
;
903 fixed_io
->address
= p
->start
;
904 fixed_io
->address_length
= p
->end
- p
->start
+ 1;
907 static void pnpacpi_encode_mem24(struct acpi_resource
*resource
,
910 struct acpi_resource_memory24
*memory24
= &resource
->data
.memory24
;
912 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
913 memory24
->write_protect
=
914 (p
->flags
& IORESOURCE_MEM_WRITEABLE
) ?
915 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
916 memory24
->minimum
= p
->start
;
917 memory24
->maximum
= p
->end
;
918 memory24
->alignment
= 0;
919 memory24
->address_length
= p
->end
- p
->start
+ 1;
922 static void pnpacpi_encode_mem32(struct acpi_resource
*resource
,
925 struct acpi_resource_memory32
*memory32
= &resource
->data
.memory32
;
927 memory32
->write_protect
=
928 (p
->flags
& IORESOURCE_MEM_WRITEABLE
) ?
929 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
930 memory32
->minimum
= p
->start
;
931 memory32
->maximum
= p
->end
;
932 memory32
->alignment
= 0;
933 memory32
->address_length
= p
->end
- p
->start
+ 1;
936 static void pnpacpi_encode_fixed_mem32(struct acpi_resource
*resource
,
939 struct acpi_resource_fixed_memory32
*fixed_memory32
= &resource
->data
.fixed_memory32
;
941 fixed_memory32
->write_protect
=
942 (p
->flags
& IORESOURCE_MEM_WRITEABLE
) ?
943 ACPI_READ_WRITE_MEMORY
: ACPI_READ_ONLY_MEMORY
;
944 fixed_memory32
->address
= p
->start
;
945 fixed_memory32
->address_length
= p
->end
- p
->start
+ 1;
948 int pnpacpi_encode_resources(struct pnp_resource_table
*res_table
,
949 struct acpi_buffer
*buffer
)
952 /* pnpacpi_build_resource_template allocates extra mem */
953 int res_cnt
= (buffer
->length
- 1) / sizeof(struct acpi_resource
) - 1;
954 struct acpi_resource
*resource
= buffer
->pointer
;
955 int port
= 0, irq
= 0, dma
= 0, mem
= 0;
957 pnp_dbg("res cnt %d", res_cnt
);
958 while (i
< res_cnt
) {
959 switch (resource
->type
) {
960 case ACPI_RESOURCE_TYPE_IRQ
:
961 pnp_dbg("Encode irq");
962 pnpacpi_encode_irq(resource
,
963 &res_table
->irq_resource
[irq
]);
967 case ACPI_RESOURCE_TYPE_DMA
:
968 pnp_dbg("Encode dma");
969 pnpacpi_encode_dma(resource
,
970 &res_table
->dma_resource
[dma
]);
973 case ACPI_RESOURCE_TYPE_IO
:
974 pnp_dbg("Encode io");
975 pnpacpi_encode_io(resource
,
976 &res_table
->port_resource
[port
]);
979 case ACPI_RESOURCE_TYPE_FIXED_IO
:
980 pnp_dbg("Encode fixed io");
981 pnpacpi_encode_fixed_io(resource
,
983 port_resource
[port
]);
986 case ACPI_RESOURCE_TYPE_MEMORY24
:
987 pnp_dbg("Encode mem24");
988 pnpacpi_encode_mem24(resource
,
989 &res_table
->mem_resource
[mem
]);
992 case ACPI_RESOURCE_TYPE_MEMORY32
:
993 pnp_dbg("Encode mem32");
994 pnpacpi_encode_mem32(resource
,
995 &res_table
->mem_resource
[mem
]);
998 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32
:
999 pnp_dbg("Encode fixed mem32");
1000 pnpacpi_encode_fixed_mem32(resource
,
1005 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ
:
1006 pnp_dbg("Encode ext irq");
1007 pnpacpi_encode_ext_irq(resource
,
1008 &res_table
->irq_resource
[irq
]);
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
:
1020 default: /* other type */
1021 pnp_warn("unknown resource type %d", resource
->type
);