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,
175 static unsigned char warned;
177 while (i < PNP_MAX_DMA &&
178 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
180 if (i < PNP_MAX_DMA) {
181 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
182 res->dma_resource[i].flags |= flags;
184 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
187 res->dma_resource[i].start = dma;
188 res->dma_resource[i].end = dma;
189 } else if (!warned) {
190 printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
191 "resources: %d \n", PNP_MAX_DMA);
196 static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
197 u64 io, u64 len, int io_decode)
200 static unsigned char warned;
202 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
205 if (i < PNP_MAX_PORT) {
206 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
207 if (io_decode == ACPI_DECODE_16)
208 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
209 if (len <= 0 || (io + len - 1) >= 0x10003) {
210 res->port_resource[i].flags |= IORESOURCE_DISABLED;
213 res->port_resource[i].start = io;
214 res->port_resource[i].end = io + len - 1;
215 } else if (!warned) {
216 printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
217 "resources: %d \n", PNP_MAX_PORT);
222 static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
227 static unsigned char warned;
229 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
232 if (i < PNP_MAX_MEM) {
233 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
235 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
238 if (write_protect == ACPI_READ_WRITE_MEMORY)
239 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
241 res->mem_resource[i].start = mem;
242 res->mem_resource[i].end = mem + len - 1;
243 } else if (!warned) {
244 printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
245 "resources: %d\n", PNP_MAX_MEM);
250 static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
251 struct acpi_resource *res)
253 struct acpi_resource_address64 addr, *p = &addr;
256 status = acpi_resource_to_address64(res, p);
257 if (!ACPI_SUCCESS(status)) {
258 pnp_warn("PnPACPI: failed to convert resource type %d",
263 if (p->producer_consumer == ACPI_PRODUCER)
266 if (p->resource_type == ACPI_MEMORY_RANGE)
267 pnpacpi_parse_allocated_memresource(res_table,
268 p->minimum, p->address_length,
269 p->info.mem.write_protect);
270 else if (p->resource_type == ACPI_IO_RANGE)
271 pnpacpi_parse_allocated_ioresource(res_table,
272 p->minimum, p->address_length,
273 p->granularity == 0xfff ? ACPI_DECODE_10 :
277 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
280 struct pnp_resource_table *res_table = data;
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;
292 case ACPI_RESOURCE_TYPE_IRQ:
294 * Per spec, only one interrupt per descriptor is allowed in
295 * _CRS, but some firmware violates this, so parse them all.
297 irq = &res->data.irq;
298 for (i = 0; i < irq->interrupt_count; i++) {
299 pnpacpi_parse_allocated_irqresource(res_table,
307 case ACPI_RESOURCE_TYPE_DMA:
308 dma = &res->data.dma;
309 if (dma->channel_count > 0)
310 pnpacpi_parse_allocated_dmaresource(res_table,
312 dma_flags(dma->type, dma->bus_master,
316 case ACPI_RESOURCE_TYPE_IO:
318 pnpacpi_parse_allocated_ioresource(res_table,
324 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
325 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
328 case ACPI_RESOURCE_TYPE_FIXED_IO:
329 fixed_io = &res->data.fixed_io;
330 pnpacpi_parse_allocated_ioresource(res_table,
332 fixed_io->address_length,
336 case ACPI_RESOURCE_TYPE_VENDOR:
339 case ACPI_RESOURCE_TYPE_END_TAG:
342 case ACPI_RESOURCE_TYPE_MEMORY24:
343 memory24 = &res->data.memory24;
344 pnpacpi_parse_allocated_memresource(res_table,
346 memory24->address_length,
347 memory24->write_protect);
349 case ACPI_RESOURCE_TYPE_MEMORY32:
350 memory32 = &res->data.memory32;
351 pnpacpi_parse_allocated_memresource(res_table,
353 memory32->address_length,
354 memory32->write_protect);
356 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
357 fixed_memory32 = &res->data.fixed_memory32;
358 pnpacpi_parse_allocated_memresource(res_table,
359 fixed_memory32->address,
360 fixed_memory32->address_length,
361 fixed_memory32->write_protect);
363 case ACPI_RESOURCE_TYPE_ADDRESS16:
364 case ACPI_RESOURCE_TYPE_ADDRESS32:
365 case ACPI_RESOURCE_TYPE_ADDRESS64:
366 pnpacpi_parse_allocated_address_space(res_table, res);
369 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
370 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
374 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
375 extended_irq = &res->data.extended_irq;
376 if (extended_irq->producer_consumer == ACPI_PRODUCER)
379 for (i = 0; i < extended_irq->interrupt_count; i++) {
380 pnpacpi_parse_allocated_irqresource(res_table,
381 extended_irq->interrupts[i],
382 extended_irq->triggering,
383 extended_irq->polarity,
384 extended_irq->sharable);
388 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
392 pnp_warn("PnPACPI: unknown resource type %d", res->type);
399 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
400 struct pnp_resource_table * res)
402 /* Blank the resource table values */
403 pnp_init_resource_table(res);
405 return acpi_walk_resources(handle, METHOD_NAME__CRS,
406 pnpacpi_allocated_resource, res);
409 static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
410 struct acpi_resource_dma *p)
415 if (p->channel_count == 0)
417 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
421 for (i = 0; i < p->channel_count; i++)
422 dma->map |= 1 << p->channels[i];
424 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
426 pnp_register_dma_resource(option, dma);
429 static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
430 struct acpi_resource_irq *p)
435 if (p->interrupt_count == 0)
437 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
441 for (i = 0; i < p->interrupt_count; i++)
442 if (p->interrupts[i])
443 __set_bit(p->interrupts[i], irq->map);
444 irq->flags = irq_flags(p->triggering, p->polarity);
446 pnp_register_irq_resource(option, irq);
449 static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
450 struct acpi_resource_extended_irq *p)
455 if (p->interrupt_count == 0)
457 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
461 for (i = 0; i < p->interrupt_count; i++)
462 if (p->interrupts[i])
463 __set_bit(p->interrupts[i], irq->map);
464 irq->flags = irq_flags(p->triggering, p->polarity);
466 pnp_register_irq_resource(option, irq);
469 static __init void pnpacpi_parse_port_option(struct pnp_option *option,
470 struct acpi_resource_io *io)
472 struct pnp_port *port;
474 if (io->address_length == 0)
476 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
479 port->min = io->minimum;
480 port->max = io->maximum;
481 port->align = io->alignment;
482 port->size = io->address_length;
483 port->flags = ACPI_DECODE_16 == io->io_decode ?
484 PNP_PORT_FLAG_16BITADDR : 0;
485 pnp_register_port_resource(option, port);
488 static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
489 struct acpi_resource_fixed_io *io)
491 struct pnp_port *port;
493 if (io->address_length == 0)
495 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
498 port->min = port->max = io->address;
499 port->size = io->address_length;
501 port->flags = PNP_PORT_FLAG_FIXED;
502 pnp_register_port_resource(option, port);
505 static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
506 struct acpi_resource_memory24 *p)
510 if (p->address_length == 0)
512 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
515 mem->min = p->minimum;
516 mem->max = p->maximum;
517 mem->align = p->alignment;
518 mem->size = p->address_length;
520 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
521 IORESOURCE_MEM_WRITEABLE : 0;
523 pnp_register_mem_resource(option, mem);
526 static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
527 struct acpi_resource_memory32 *p)
531 if (p->address_length == 0)
533 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
536 mem->min = p->minimum;
537 mem->max = p->maximum;
538 mem->align = p->alignment;
539 mem->size = p->address_length;
541 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
542 IORESOURCE_MEM_WRITEABLE : 0;
544 pnp_register_mem_resource(option, mem);
547 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
548 struct acpi_resource_fixed_memory32 *p)
552 if (p->address_length == 0)
554 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
557 mem->min = mem->max = p->address;
558 mem->size = p->address_length;
561 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
562 IORESOURCE_MEM_WRITEABLE : 0;
564 pnp_register_mem_resource(option, mem);
567 static __init void pnpacpi_parse_address_option(struct pnp_option *option,
568 struct acpi_resource *r)
570 struct acpi_resource_address64 addr, *p = &addr;
573 struct pnp_port *port;
575 status = acpi_resource_to_address64(r, p);
576 if (!ACPI_SUCCESS(status)) {
577 pnp_warn("PnPACPI: failed to convert resource type %d",
582 if (p->address_length == 0)
585 if (p->resource_type == ACPI_MEMORY_RANGE) {
586 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
589 mem->min = mem->max = p->minimum;
590 mem->size = p->address_length;
592 mem->flags = (p->info.mem.write_protect ==
593 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
595 pnp_register_mem_resource(option, mem);
596 } else if (p->resource_type == ACPI_IO_RANGE) {
597 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
600 port->min = port->max = p->minimum;
601 port->size = p->address_length;
603 port->flags = PNP_PORT_FLAG_FIXED;
604 pnp_register_port_resource(option, port);
608 struct acpipnp_parse_option_s {
609 struct pnp_option *option;
610 struct pnp_option *option_independent;
614 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
618 struct acpipnp_parse_option_s *parse_data = data;
619 struct pnp_dev *dev = parse_data->dev;
620 struct pnp_option *option = parse_data->option;
623 case ACPI_RESOURCE_TYPE_IRQ:
624 pnpacpi_parse_irq_option(option, &res->data.irq);
627 case ACPI_RESOURCE_TYPE_DMA:
628 pnpacpi_parse_dma_option(option, &res->data.dma);
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;
637 case ACPI_ACCEPTABLE_CONFIGURATION:
638 priority = PNP_RES_PRIORITY_ACCEPTABLE;
641 case ACPI_SUB_OPTIMAL_CONFIGURATION:
642 priority = PNP_RES_PRIORITY_FUNCTIONAL;
645 priority = PNP_RES_PRIORITY_INVALID;
648 /* TBD: Consider performance/robustness bits */
649 option = pnp_register_dependent_option(dev, priority);
652 parse_data->option = option;
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");
661 parse_data->option = parse_data->option_independent;
662 parse_data->option_independent = NULL;
665 case ACPI_RESOURCE_TYPE_IO:
666 pnpacpi_parse_port_option(option, &res->data.io);
669 case ACPI_RESOURCE_TYPE_FIXED_IO:
670 pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
673 case ACPI_RESOURCE_TYPE_VENDOR:
674 case ACPI_RESOURCE_TYPE_END_TAG:
677 case ACPI_RESOURCE_TYPE_MEMORY24:
678 pnpacpi_parse_mem24_option(option, &res->data.memory24);
681 case ACPI_RESOURCE_TYPE_MEMORY32:
682 pnpacpi_parse_mem32_option(option, &res->data.memory32);
685 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
686 pnpacpi_parse_fixed_mem32_option(option,
687 &res->data.fixed_memory32);
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);
696 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
699 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
700 pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
703 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
707 pnp_warn("PnPACPI: unknown resource type %d", res->type);
714 acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
718 struct acpipnp_parse_option_s parse_data;
720 parse_data.option = pnp_register_independent_option(dev);
721 if (!parse_data.option)
723 parse_data.option_independent = parse_data.option;
724 parse_data.dev = dev;
725 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
726 pnpacpi_option_resource, &parse_data);
731 static int pnpacpi_supported_resource(struct acpi_resource *res)
734 case ACPI_RESOURCE_TYPE_IRQ:
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:
741 case ACPI_RESOURCE_TYPE_ADDRESS16:
742 case ACPI_RESOURCE_TYPE_ADDRESS32:
743 case ACPI_RESOURCE_TYPE_ADDRESS64:
744 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
753 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
758 if (pnpacpi_supported_resource(res))
763 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
765 struct acpi_resource **resource = data;
767 if (pnpacpi_supported_resource(res)) {
768 (*resource)->type = res->type;
769 (*resource)->length = sizeof(struct acpi_resource);
776 int pnpacpi_build_resource_template(acpi_handle handle,
777 struct acpi_buffer *buffer)
779 struct acpi_resource *resource;
783 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
784 pnpacpi_count_resources, &res_cnt);
785 if (ACPI_FAILURE(status)) {
786 pnp_err("Evaluate _CRS failed");
791 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
792 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
793 if (!buffer->pointer)
795 pnp_dbg("Res cnt %d", res_cnt);
796 resource = (struct acpi_resource *)buffer->pointer;
797 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
798 pnpacpi_type_resources, &resource);
799 if (ACPI_FAILURE(status)) {
800 kfree(buffer->pointer);
801 pnp_err("Evaluate _CRS failed");
804 /* resource will pointer the end resource now */
805 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
810 static void pnpacpi_encode_irq(struct acpi_resource *resource,
813 struct acpi_resource_irq *irq = &resource->data.irq;
814 int triggering, polarity;
816 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
817 irq->triggering = triggering;
818 irq->polarity = polarity;
819 if (triggering == ACPI_EDGE_SENSITIVE)
820 irq->sharable = ACPI_EXCLUSIVE;
822 irq->sharable = ACPI_SHARED;
823 irq->interrupt_count = 1;
824 irq->interrupts[0] = p->start;
827 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
830 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
831 int triggering, polarity;
833 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
834 extended_irq->producer_consumer = ACPI_CONSUMER;
835 extended_irq->triggering = triggering;
836 extended_irq->polarity = polarity;
837 if (triggering == ACPI_EDGE_SENSITIVE)
838 extended_irq->sharable = ACPI_EXCLUSIVE;
840 extended_irq->sharable = ACPI_SHARED;
841 extended_irq->interrupt_count = 1;
842 extended_irq->interrupts[0] = p->start;
845 static void pnpacpi_encode_dma(struct acpi_resource *resource,
848 struct acpi_resource_dma *dma = &resource->data.dma;
850 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
851 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
852 case IORESOURCE_DMA_TYPEA:
853 dma->type = ACPI_TYPE_A;
855 case IORESOURCE_DMA_TYPEB:
856 dma->type = ACPI_TYPE_B;
858 case IORESOURCE_DMA_TYPEF:
859 dma->type = ACPI_TYPE_F;
862 dma->type = ACPI_COMPATIBILITY;
865 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
866 case IORESOURCE_DMA_8BIT:
867 dma->transfer = ACPI_TRANSFER_8;
869 case IORESOURCE_DMA_8AND16BIT:
870 dma->transfer = ACPI_TRANSFER_8_16;
873 dma->transfer = ACPI_TRANSFER_16;
876 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
877 dma->channel_count = 1;
878 dma->channels[0] = p->start;
881 static void pnpacpi_encode_io(struct acpi_resource *resource,
884 struct acpi_resource_io *io = &resource->data.io;
886 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
887 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
888 ACPI_DECODE_16 : ACPI_DECODE_10;
889 io->minimum = p->start;
890 io->maximum = p->end;
891 io->alignment = 0; /* Correct? */
892 io->address_length = p->end - p->start + 1;
895 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
898 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
900 fixed_io->address = p->start;
901 fixed_io->address_length = p->end - p->start + 1;
904 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
907 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
909 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
910 memory24->write_protect =
911 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
912 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
913 memory24->minimum = p->start;
914 memory24->maximum = p->end;
915 memory24->alignment = 0;
916 memory24->address_length = p->end - p->start + 1;
919 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
922 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
924 memory32->write_protect =
925 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
926 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
927 memory32->minimum = p->start;
928 memory32->maximum = p->end;
929 memory32->alignment = 0;
930 memory32->address_length = p->end - p->start + 1;
933 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
936 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
938 fixed_memory32->write_protect =
939 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
940 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
941 fixed_memory32->address = p->start;
942 fixed_memory32->address_length = p->end - p->start + 1;
945 int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
946 struct acpi_buffer *buffer)
949 /* pnpacpi_build_resource_template allocates extra mem */
950 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
951 struct acpi_resource *resource = buffer->pointer;
952 int port = 0, irq = 0, dma = 0, mem = 0;
954 pnp_dbg("res cnt %d", res_cnt);
955 while (i < res_cnt) {
956 switch (resource->type) {
957 case ACPI_RESOURCE_TYPE_IRQ:
958 pnp_dbg("Encode irq");
959 pnpacpi_encode_irq(resource,
960 &res_table->irq_resource[irq]);
964 case ACPI_RESOURCE_TYPE_DMA:
965 pnp_dbg("Encode dma");
966 pnpacpi_encode_dma(resource,
967 &res_table->dma_resource[dma]);
970 case ACPI_RESOURCE_TYPE_IO:
971 pnp_dbg("Encode io");
972 pnpacpi_encode_io(resource,
973 &res_table->port_resource[port]);
976 case ACPI_RESOURCE_TYPE_FIXED_IO:
977 pnp_dbg("Encode fixed io");
978 pnpacpi_encode_fixed_io(resource,
980 port_resource[port]);
983 case ACPI_RESOURCE_TYPE_MEMORY24:
984 pnp_dbg("Encode mem24");
985 pnpacpi_encode_mem24(resource,
986 &res_table->mem_resource[mem]);
989 case ACPI_RESOURCE_TYPE_MEMORY32:
990 pnp_dbg("Encode mem32");
991 pnpacpi_encode_mem32(resource,
992 &res_table->mem_resource[mem]);
995 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
996 pnp_dbg("Encode fixed mem32");
997 pnpacpi_encode_fixed_mem32(resource,
1002 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1003 pnp_dbg("Encode ext irq");
1004 pnpacpi_encode_ext_irq(resource,
1005 &res_table->irq_resource[irq]);
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:
1017 default: /* other type */
1018 pnp_warn("unknown resource type %d", resource->type);