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)
82 while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
89 if (gsi < 16 && (triggering != ACPI_EDGE_SENSITIVE ||
90 polarity != ACPI_ACTIVE_HIGH)) {
91 pnp_warn("BIOS BUG: legacy PNP IRQ %d should be edge trigger, "
93 triggering = ACPI_EDGE_SENSITIVE;
94 polarity = ACPI_ACTIVE_HIGH;
98 res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
99 res->irq_resource[i].flags |= irq_flags(triggering, polarity);
100 irq = acpi_register_gsi(gsi, triggering, polarity);
102 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
107 res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
109 res->irq_resource[i].start = irq;
110 res->irq_resource[i].end = irq;
111 pcibios_penalize_isa_irq(irq, 1);
114 static int dma_flags(int type, int bus_master, int transfer)
119 flags |= IORESOURCE_DMA_MASTER;
121 case ACPI_COMPATIBILITY:
122 flags |= IORESOURCE_DMA_COMPATIBLE;
125 flags |= IORESOURCE_DMA_TYPEA;
128 flags |= IORESOURCE_DMA_TYPEB;
131 flags |= IORESOURCE_DMA_TYPEF;
134 /* Set a default value ? */
135 flags |= IORESOURCE_DMA_COMPATIBLE;
136 pnp_err("Invalid DMA type");
139 case ACPI_TRANSFER_8:
140 flags |= IORESOURCE_DMA_8BIT;
142 case ACPI_TRANSFER_8_16:
143 flags |= IORESOURCE_DMA_8AND16BIT;
145 case ACPI_TRANSFER_16:
146 flags |= IORESOURCE_DMA_16BIT;
149 /* Set a default value ? */
150 flags |= IORESOURCE_DMA_8AND16BIT;
151 pnp_err("Invalid DMA transfer type");
157 static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
159 int bus_master, int transfer)
163 while (i < PNP_MAX_DMA &&
164 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
166 if (i < PNP_MAX_DMA) {
167 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
168 res->dma_resource[i].flags |=
169 dma_flags(type, bus_master, transfer);
171 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
174 res->dma_resource[i].start = dma;
175 res->dma_resource[i].end = dma;
179 static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
180 u64 io, u64 len, int io_decode)
184 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
187 if (i < PNP_MAX_PORT) {
188 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
189 if (io_decode == ACPI_DECODE_16)
190 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
191 if (len <= 0 || (io + len - 1) >= 0x10003) {
192 res->port_resource[i].flags |= IORESOURCE_DISABLED;
195 res->port_resource[i].start = io;
196 res->port_resource[i].end = io + len - 1;
200 static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
206 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
209 if (i < PNP_MAX_MEM) {
210 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
212 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
215 if (write_protect == ACPI_READ_WRITE_MEMORY)
216 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
218 res->mem_resource[i].start = mem;
219 res->mem_resource[i].end = mem + len - 1;
223 static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
224 struct acpi_resource *res)
226 struct acpi_resource_address64 addr, *p = &addr;
229 status = acpi_resource_to_address64(res, p);
230 if (!ACPI_SUCCESS(status)) {
231 pnp_warn("PnPACPI: failed to convert resource type %d",
236 if (p->producer_consumer == ACPI_PRODUCER)
239 if (p->resource_type == ACPI_MEMORY_RANGE)
240 pnpacpi_parse_allocated_memresource(res_table,
241 p->minimum, p->address_length,
242 p->info.mem.write_protect);
243 else if (p->resource_type == ACPI_IO_RANGE)
244 pnpacpi_parse_allocated_ioresource(res_table,
245 p->minimum, p->address_length,
246 p->granularity == 0xfff ? ACPI_DECODE_10 :
250 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
253 struct pnp_resource_table *res_table = data;
257 case ACPI_RESOURCE_TYPE_IRQ:
259 * Per spec, only one interrupt per descriptor is allowed in
260 * _CRS, but some firmware violates this, so parse them all.
262 for (i = 0; i < res->data.irq.interrupt_count; i++) {
263 pnpacpi_parse_allocated_irqresource(res_table,
264 res->data.irq.interrupts[i],
265 res->data.irq.triggering,
266 res->data.irq.polarity,
267 res->data.irq.sharable);
271 case ACPI_RESOURCE_TYPE_DMA:
272 if (res->data.dma.channel_count > 0)
273 pnpacpi_parse_allocated_dmaresource(res_table,
274 res->data.dma.channels[0],
276 res->data.dma.bus_master,
277 res->data.dma.transfer);
280 case ACPI_RESOURCE_TYPE_IO:
281 pnpacpi_parse_allocated_ioresource(res_table,
282 res->data.io.minimum,
283 res->data.io.address_length,
284 res->data.io.io_decode);
287 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
288 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
291 case ACPI_RESOURCE_TYPE_FIXED_IO:
292 pnpacpi_parse_allocated_ioresource(res_table,
293 res->data.fixed_io.address,
294 res->data.fixed_io.address_length,
298 case ACPI_RESOURCE_TYPE_VENDOR:
301 case ACPI_RESOURCE_TYPE_END_TAG:
304 case ACPI_RESOURCE_TYPE_MEMORY24:
305 pnpacpi_parse_allocated_memresource(res_table,
306 res->data.memory24.minimum,
307 res->data.memory24.address_length,
308 res->data.memory24.write_protect);
310 case ACPI_RESOURCE_TYPE_MEMORY32:
311 pnpacpi_parse_allocated_memresource(res_table,
312 res->data.memory32.minimum,
313 res->data.memory32.address_length,
314 res->data.memory32.write_protect);
316 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
317 pnpacpi_parse_allocated_memresource(res_table,
318 res->data.fixed_memory32.address,
319 res->data.fixed_memory32.address_length,
320 res->data.fixed_memory32.write_protect);
322 case ACPI_RESOURCE_TYPE_ADDRESS16:
323 case ACPI_RESOURCE_TYPE_ADDRESS32:
324 case ACPI_RESOURCE_TYPE_ADDRESS64:
325 pnpacpi_parse_allocated_address_space(res_table, res);
328 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
329 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
333 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
334 if (res->data.extended_irq.producer_consumer == ACPI_PRODUCER)
337 for (i = 0; i < res->data.extended_irq.interrupt_count; i++) {
338 pnpacpi_parse_allocated_irqresource(res_table,
339 res->data.extended_irq.interrupts[i],
340 res->data.extended_irq.triggering,
341 res->data.extended_irq.polarity,
342 res->data.extended_irq.sharable);
346 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
350 pnp_warn("PnPACPI: unknown resource type %d", res->type);
357 acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
358 struct pnp_resource_table * res)
360 /* Blank the resource table values */
361 pnp_init_resource_table(res);
363 return acpi_walk_resources(handle, METHOD_NAME__CRS,
364 pnpacpi_allocated_resource, res);
367 static void pnpacpi_parse_dma_option(struct pnp_option *option,
368 struct acpi_resource_dma *p)
373 if (p->channel_count == 0)
375 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
379 for (i = 0; i < p->channel_count; i++)
380 dma->map |= 1 << p->channels[i];
382 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
384 pnp_register_dma_resource(option, dma);
387 static void pnpacpi_parse_irq_option(struct pnp_option *option,
388 struct acpi_resource_irq *p)
393 if (p->interrupt_count == 0)
395 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
399 for (i = 0; i < p->interrupt_count; i++)
400 if (p->interrupts[i])
401 __set_bit(p->interrupts[i], irq->map);
402 irq->flags = irq_flags(p->triggering, p->polarity);
404 pnp_register_irq_resource(option, irq);
407 static void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
408 struct acpi_resource_extended_irq *p)
413 if (p->interrupt_count == 0)
415 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
419 for (i = 0; i < p->interrupt_count; i++)
420 if (p->interrupts[i])
421 __set_bit(p->interrupts[i], irq->map);
422 irq->flags = irq_flags(p->triggering, p->polarity);
424 pnp_register_irq_resource(option, irq);
427 static void pnpacpi_parse_port_option(struct pnp_option *option,
428 struct acpi_resource_io *io)
430 struct pnp_port *port;
432 if (io->address_length == 0)
434 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
437 port->min = io->minimum;
438 port->max = io->maximum;
439 port->align = io->alignment;
440 port->size = io->address_length;
441 port->flags = ACPI_DECODE_16 == io->io_decode ?
442 PNP_PORT_FLAG_16BITADDR : 0;
443 pnp_register_port_resource(option, port);
446 static void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
447 struct acpi_resource_fixed_io *io)
449 struct pnp_port *port;
451 if (io->address_length == 0)
453 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
456 port->min = port->max = io->address;
457 port->size = io->address_length;
459 port->flags = PNP_PORT_FLAG_FIXED;
460 pnp_register_port_resource(option, port);
463 static void pnpacpi_parse_mem24_option(struct pnp_option *option,
464 struct acpi_resource_memory24 *p)
468 if (p->address_length == 0)
470 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
473 mem->min = p->minimum;
474 mem->max = p->maximum;
475 mem->align = p->alignment;
476 mem->size = p->address_length;
478 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
479 IORESOURCE_MEM_WRITEABLE : 0;
481 pnp_register_mem_resource(option, mem);
484 static void pnpacpi_parse_mem32_option(struct pnp_option *option,
485 struct acpi_resource_memory32 *p)
489 if (p->address_length == 0)
491 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
494 mem->min = p->minimum;
495 mem->max = p->maximum;
496 mem->align = p->alignment;
497 mem->size = p->address_length;
499 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
500 IORESOURCE_MEM_WRITEABLE : 0;
502 pnp_register_mem_resource(option, mem);
505 static void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
506 struct acpi_resource_fixed_memory32 *p)
510 if (p->address_length == 0)
512 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
515 mem->min = mem->max = p->address;
516 mem->size = p->address_length;
519 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
520 IORESOURCE_MEM_WRITEABLE : 0;
522 pnp_register_mem_resource(option, mem);
525 static void pnpacpi_parse_address_option(struct pnp_option *option,
526 struct acpi_resource *r)
528 struct acpi_resource_address64 addr, *p = &addr;
531 struct pnp_port *port;
533 status = acpi_resource_to_address64(r, p);
534 if (!ACPI_SUCCESS(status)) {
535 pnp_warn("PnPACPI: failed to convert resource type %d",
540 if (p->address_length == 0)
543 if (p->resource_type == ACPI_MEMORY_RANGE) {
544 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
547 mem->min = mem->max = p->minimum;
548 mem->size = p->address_length;
550 mem->flags = (p->info.mem.write_protect ==
551 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
553 pnp_register_mem_resource(option, mem);
554 } else if (p->resource_type == ACPI_IO_RANGE) {
555 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
558 port->min = port->max = p->minimum;
559 port->size = p->address_length;
561 port->flags = PNP_PORT_FLAG_FIXED;
562 pnp_register_port_resource(option, port);
566 struct acpipnp_parse_option_s {
567 struct pnp_option *option;
568 struct pnp_option *option_independent;
572 static acpi_status pnpacpi_option_resource(struct acpi_resource *res,
576 struct acpipnp_parse_option_s *parse_data = data;
577 struct pnp_dev *dev = parse_data->dev;
578 struct pnp_option *option = parse_data->option;
581 case ACPI_RESOURCE_TYPE_IRQ:
582 pnpacpi_parse_irq_option(option, &res->data.irq);
585 case ACPI_RESOURCE_TYPE_DMA:
586 pnpacpi_parse_dma_option(option, &res->data.dma);
589 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
590 switch (res->data.start_dpf.compatibility_priority) {
591 case ACPI_GOOD_CONFIGURATION:
592 priority = PNP_RES_PRIORITY_PREFERRED;
595 case ACPI_ACCEPTABLE_CONFIGURATION:
596 priority = PNP_RES_PRIORITY_ACCEPTABLE;
599 case ACPI_SUB_OPTIMAL_CONFIGURATION:
600 priority = PNP_RES_PRIORITY_FUNCTIONAL;
603 priority = PNP_RES_PRIORITY_INVALID;
606 /* TBD: Consider performance/robustness bits */
607 option = pnp_register_dependent_option(dev, priority);
610 parse_data->option = option;
613 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
614 /*only one EndDependentFn is allowed */
615 if (!parse_data->option_independent) {
616 pnp_warn("PnPACPI: more than one EndDependentFn");
619 parse_data->option = parse_data->option_independent;
620 parse_data->option_independent = NULL;
623 case ACPI_RESOURCE_TYPE_IO:
624 pnpacpi_parse_port_option(option, &res->data.io);
627 case ACPI_RESOURCE_TYPE_FIXED_IO:
628 pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
631 case ACPI_RESOURCE_TYPE_VENDOR:
632 case ACPI_RESOURCE_TYPE_END_TAG:
635 case ACPI_RESOURCE_TYPE_MEMORY24:
636 pnpacpi_parse_mem24_option(option, &res->data.memory24);
639 case ACPI_RESOURCE_TYPE_MEMORY32:
640 pnpacpi_parse_mem32_option(option, &res->data.memory32);
643 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
644 pnpacpi_parse_fixed_mem32_option(option,
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(option, res);
654 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
657 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
658 pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
661 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
665 pnp_warn("PnPACPI: unknown resource type %d", res->type);
672 acpi_status pnpacpi_parse_resource_option_data(acpi_handle handle,
673 struct pnp_dev * dev)
676 struct acpipnp_parse_option_s parse_data;
678 parse_data.option = pnp_register_independent_option(dev);
679 if (!parse_data.option)
681 parse_data.option_independent = parse_data.option;
682 parse_data.dev = dev;
683 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
684 pnpacpi_option_resource, &parse_data);
689 static int pnpacpi_supported_resource(struct acpi_resource *res)
692 case ACPI_RESOURCE_TYPE_IRQ:
693 case ACPI_RESOURCE_TYPE_DMA:
694 case ACPI_RESOURCE_TYPE_IO:
695 case ACPI_RESOURCE_TYPE_FIXED_IO:
696 case ACPI_RESOURCE_TYPE_MEMORY24:
697 case ACPI_RESOURCE_TYPE_MEMORY32:
698 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
699 case ACPI_RESOURCE_TYPE_ADDRESS16:
700 case ACPI_RESOURCE_TYPE_ADDRESS32:
701 case ACPI_RESOURCE_TYPE_ADDRESS64:
702 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
711 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
716 if (pnpacpi_supported_resource(res))
721 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
723 struct acpi_resource **resource = data;
725 if (pnpacpi_supported_resource(res)) {
726 (*resource)->type = res->type;
727 (*resource)->length = sizeof(struct acpi_resource);
734 int pnpacpi_build_resource_template(acpi_handle handle,
735 struct acpi_buffer *buffer)
737 struct acpi_resource *resource;
741 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
742 pnpacpi_count_resources, &res_cnt);
743 if (ACPI_FAILURE(status)) {
744 pnp_err("Evaluate _CRS failed");
749 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
750 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
751 if (!buffer->pointer)
753 pnp_dbg("Res cnt %d", res_cnt);
754 resource = (struct acpi_resource *)buffer->pointer;
755 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
756 pnpacpi_type_resources, &resource);
757 if (ACPI_FAILURE(status)) {
758 kfree(buffer->pointer);
759 pnp_err("Evaluate _CRS failed");
762 /* resource will pointer the end resource now */
763 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
768 static void pnpacpi_encode_irq(struct acpi_resource *resource,
771 int triggering, polarity;
773 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
774 resource->data.irq.triggering = triggering;
775 resource->data.irq.polarity = polarity;
776 if (triggering == ACPI_EDGE_SENSITIVE)
777 resource->data.irq.sharable = ACPI_EXCLUSIVE;
779 resource->data.irq.sharable = ACPI_SHARED;
780 resource->data.irq.interrupt_count = 1;
781 resource->data.irq.interrupts[0] = p->start;
784 static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
787 int triggering, polarity;
789 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
790 resource->data.extended_irq.producer_consumer = ACPI_CONSUMER;
791 resource->data.extended_irq.triggering = triggering;
792 resource->data.extended_irq.polarity = polarity;
793 if (triggering == ACPI_EDGE_SENSITIVE)
794 resource->data.irq.sharable = ACPI_EXCLUSIVE;
796 resource->data.irq.sharable = ACPI_SHARED;
797 resource->data.extended_irq.interrupt_count = 1;
798 resource->data.extended_irq.interrupts[0] = p->start;
801 static void pnpacpi_encode_dma(struct acpi_resource *resource,
804 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
805 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
806 case IORESOURCE_DMA_TYPEA:
807 resource->data.dma.type = ACPI_TYPE_A;
809 case IORESOURCE_DMA_TYPEB:
810 resource->data.dma.type = ACPI_TYPE_B;
812 case IORESOURCE_DMA_TYPEF:
813 resource->data.dma.type = ACPI_TYPE_F;
816 resource->data.dma.type = ACPI_COMPATIBILITY;
819 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
820 case IORESOURCE_DMA_8BIT:
821 resource->data.dma.transfer = ACPI_TRANSFER_8;
823 case IORESOURCE_DMA_8AND16BIT:
824 resource->data.dma.transfer = ACPI_TRANSFER_8_16;
827 resource->data.dma.transfer = ACPI_TRANSFER_16;
830 resource->data.dma.bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
831 resource->data.dma.channel_count = 1;
832 resource->data.dma.channels[0] = p->start;
835 static void pnpacpi_encode_io(struct acpi_resource *resource,
838 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
839 resource->data.io.io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
840 ACPI_DECODE_16 : ACPI_DECODE_10;
841 resource->data.io.minimum = p->start;
842 resource->data.io.maximum = p->end;
843 resource->data.io.alignment = 0; /* Correct? */
844 resource->data.io.address_length = p->end - p->start + 1;
847 static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
850 resource->data.fixed_io.address = p->start;
851 resource->data.fixed_io.address_length = p->end - p->start + 1;
854 static void pnpacpi_encode_mem24(struct acpi_resource *resource,
857 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
858 resource->data.memory24.write_protect =
859 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
860 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
861 resource->data.memory24.minimum = p->start;
862 resource->data.memory24.maximum = p->end;
863 resource->data.memory24.alignment = 0;
864 resource->data.memory24.address_length = p->end - p->start + 1;
867 static void pnpacpi_encode_mem32(struct acpi_resource *resource,
870 resource->data.memory32.write_protect =
871 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
872 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
873 resource->data.memory32.minimum = p->start;
874 resource->data.memory32.maximum = p->end;
875 resource->data.memory32.alignment = 0;
876 resource->data.memory32.address_length = p->end - p->start + 1;
879 static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
882 resource->data.fixed_memory32.write_protect =
883 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
884 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
885 resource->data.fixed_memory32.address = p->start;
886 resource->data.fixed_memory32.address_length = p->end - p->start + 1;
889 int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
890 struct acpi_buffer *buffer)
893 /* pnpacpi_build_resource_template allocates extra mem */
894 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
895 struct acpi_resource *resource = buffer->pointer;
896 int port = 0, irq = 0, dma = 0, mem = 0;
898 pnp_dbg("res cnt %d", res_cnt);
899 while (i < res_cnt) {
900 switch (resource->type) {
901 case ACPI_RESOURCE_TYPE_IRQ:
902 pnp_dbg("Encode irq");
903 pnpacpi_encode_irq(resource,
904 &res_table->irq_resource[irq]);
908 case ACPI_RESOURCE_TYPE_DMA:
909 pnp_dbg("Encode dma");
910 pnpacpi_encode_dma(resource,
911 &res_table->dma_resource[dma]);
914 case ACPI_RESOURCE_TYPE_IO:
915 pnp_dbg("Encode io");
916 pnpacpi_encode_io(resource,
917 &res_table->port_resource[port]);
920 case ACPI_RESOURCE_TYPE_FIXED_IO:
921 pnp_dbg("Encode fixed io");
922 pnpacpi_encode_fixed_io(resource,
924 port_resource[port]);
927 case ACPI_RESOURCE_TYPE_MEMORY24:
928 pnp_dbg("Encode mem24");
929 pnpacpi_encode_mem24(resource,
930 &res_table->mem_resource[mem]);
933 case ACPI_RESOURCE_TYPE_MEMORY32:
934 pnp_dbg("Encode mem32");
935 pnpacpi_encode_mem32(resource,
936 &res_table->mem_resource[mem]);
939 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
940 pnp_dbg("Encode fixed mem32");
941 pnpacpi_encode_fixed_mem32(resource,
946 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
947 pnp_dbg("Encode ext irq");
948 pnpacpi_encode_ext_irq(resource,
949 &res_table->irq_resource[irq]);
952 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
953 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
954 case ACPI_RESOURCE_TYPE_VENDOR:
955 case ACPI_RESOURCE_TYPE_END_TAG:
956 case ACPI_RESOURCE_TYPE_ADDRESS16:
957 case ACPI_RESOURCE_TYPE_ADDRESS32:
958 case ACPI_RESOURCE_TYPE_ADDRESS64:
959 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
960 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
961 default: /* other type */
962 pnp_warn("unknown resource type %d", resource->type);