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>
6 * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
7 * Bjorn Helgaas <bjorn.helgaas@hp.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2, or (at your option) any
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #include <linux/kernel.h>
24 #include <linux/acpi.h>
25 #include <linux/pci.h>
26 #include <linux/pnp.h>
31 #define valid_IRQ(i) (1)
33 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
39 static int irq_flags(int triggering, int polarity, int shareable)
43 if (triggering == ACPI_LEVEL_SENSITIVE) {
44 if (polarity == ACPI_ACTIVE_LOW)
45 flags = IORESOURCE_IRQ_LOWLEVEL;
47 flags = IORESOURCE_IRQ_HIGHLEVEL;
49 if (polarity == ACPI_ACTIVE_LOW)
50 flags = IORESOURCE_IRQ_LOWEDGE;
52 flags = IORESOURCE_IRQ_HIGHEDGE;
55 if (shareable == ACPI_SHARED)
56 flags |= IORESOURCE_IRQ_SHAREABLE;
61 static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
62 int *polarity, int *shareable)
64 switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
65 IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
66 case IORESOURCE_IRQ_LOWLEVEL:
67 *triggering = ACPI_LEVEL_SENSITIVE;
68 *polarity = ACPI_ACTIVE_LOW;
70 case IORESOURCE_IRQ_HIGHLEVEL:
71 *triggering = ACPI_LEVEL_SENSITIVE;
72 *polarity = ACPI_ACTIVE_HIGH;
74 case IORESOURCE_IRQ_LOWEDGE:
75 *triggering = ACPI_EDGE_SENSITIVE;
76 *polarity = ACPI_ACTIVE_LOW;
78 case IORESOURCE_IRQ_HIGHEDGE:
79 *triggering = ACPI_EDGE_SENSITIVE;
80 *polarity = ACPI_ACTIVE_HIGH;
83 dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
85 *triggering = ACPI_EDGE_SENSITIVE;
86 *polarity = ACPI_ACTIVE_HIGH;
90 if (flags & IORESOURCE_IRQ_SHAREABLE)
91 *shareable = ACPI_SHARED;
93 *shareable = ACPI_EXCLUSIVE;
96 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
97 u32 gsi, int triggering,
98 int polarity, int shareable)
103 if (!valid_IRQ(gsi)) {
104 pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
109 * in IO-APIC mode, use overrided attribute. Two reasons:
110 * 1. BIOS bug in DSDT
111 * 2. BIOS uses IO-APIC mode Interrupt Source Override
113 if (!acpi_get_override_irq(gsi, &t, &p)) {
114 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
115 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
117 if (triggering != t || polarity != p) {
118 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
119 gsi, t ? "edge":"level", p ? "low":"high");
125 flags = irq_flags(triggering, polarity, shareable);
126 irq = acpi_register_gsi(&dev->dev, gsi, triggering, polarity);
128 pcibios_penalize_isa_irq(irq, 1);
130 flags |= IORESOURCE_DISABLED;
132 pnp_add_irq_resource(dev, irq, flags);
135 static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
141 flags |= IORESOURCE_DMA_MASTER;
143 case ACPI_COMPATIBILITY:
144 flags |= IORESOURCE_DMA_COMPATIBLE;
147 flags |= IORESOURCE_DMA_TYPEA;
150 flags |= IORESOURCE_DMA_TYPEB;
153 flags |= IORESOURCE_DMA_TYPEF;
156 /* Set a default value ? */
157 flags |= IORESOURCE_DMA_COMPATIBLE;
158 dev_err(&dev->dev, "invalid DMA type %d\n", type);
161 case ACPI_TRANSFER_8:
162 flags |= IORESOURCE_DMA_8BIT;
164 case ACPI_TRANSFER_8_16:
165 flags |= IORESOURCE_DMA_8AND16BIT;
167 case ACPI_TRANSFER_16:
168 flags |= IORESOURCE_DMA_16BIT;
171 /* Set a default value ? */
172 flags |= IORESOURCE_DMA_8AND16BIT;
173 dev_err(&dev->dev, "invalid DMA transfer type %d\n", transfer);
179 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
180 u64 len, int io_decode,
184 u64 end = start + len - 1;
186 if (io_decode == ACPI_DECODE_16)
187 flags |= IORESOURCE_IO_16BIT_ADDR;
188 if (len == 0 || end >= 0x10003)
189 flags |= IORESOURCE_DISABLED;
191 flags |= IORESOURCE_WINDOW;
193 pnp_add_io_resource(dev, start, end, flags);
197 * Device CSRs that do not appear in PCI config space should be described
198 * via ACPI. This would normally be done with Address Space Descriptors
199 * marked as "consumer-only," but old versions of Windows and Linux ignore
200 * the producer/consumer flag, so HP invented a vendor-defined resource to
201 * describe the location and size of CSR space.
203 static struct acpi_vendor_uuid hp_ccsr_uuid = {
205 .data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
206 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
209 static int vendor_resource_matches(struct pnp_dev *dev,
210 struct acpi_resource_vendor_typed *vendor,
211 struct acpi_vendor_uuid *match,
214 int uuid_len = sizeof(vendor->uuid);
215 u8 uuid_subtype = vendor->uuid_subtype;
216 u8 *uuid = vendor->uuid;
219 /* byte_length includes uuid_subtype and uuid */
220 actual_len = vendor->byte_length - uuid_len - 1;
222 if (uuid_subtype == match->subtype &&
223 uuid_len == sizeof(match->data) &&
224 memcmp(uuid, match->data, uuid_len) == 0) {
225 if (expected_len && expected_len != actual_len) {
226 dev_err(&dev->dev, "wrong vendor descriptor size; "
227 "expected %d, found %d bytes\n",
228 expected_len, actual_len);
238 static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
239 struct acpi_resource_vendor_typed *vendor)
241 if (vendor_resource_matches(dev, vendor, &hp_ccsr_uuid, 16)) {
244 memcpy(&start, vendor->byte_data, sizeof(start));
245 memcpy(&length, vendor->byte_data + 8, sizeof(length));
247 pnp_add_mem_resource(dev, start, start + length - 1, 0);
251 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
253 int write_protect, int window)
256 u64 end = start + len - 1;
259 flags |= IORESOURCE_DISABLED;
260 if (write_protect == ACPI_READ_WRITE_MEMORY)
261 flags |= IORESOURCE_MEM_WRITEABLE;
263 flags |= IORESOURCE_WINDOW;
265 pnp_add_mem_resource(dev, start, end, flags);
268 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
269 struct acpi_resource *res)
271 struct acpi_resource_address64 addr, *p = &addr;
275 status = acpi_resource_to_address64(res, p);
276 if (!ACPI_SUCCESS(status)) {
277 dev_warn(&dev->dev, "failed to convert resource type %d\n",
282 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
284 if (p->resource_type == ACPI_MEMORY_RANGE)
285 pnpacpi_parse_allocated_memresource(dev,
286 p->minimum, p->address_length,
287 p->info.mem.write_protect, window);
288 else if (p->resource_type == ACPI_IO_RANGE)
289 pnpacpi_parse_allocated_ioresource(dev,
290 p->minimum, p->address_length,
291 p->granularity == 0xfff ? ACPI_DECODE_10 :
292 ACPI_DECODE_16, window);
295 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
296 struct acpi_resource *res)
298 struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
301 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
303 if (p->resource_type == ACPI_MEMORY_RANGE)
304 pnpacpi_parse_allocated_memresource(dev,
305 p->minimum, p->address_length,
306 p->info.mem.write_protect, window);
307 else if (p->resource_type == ACPI_IO_RANGE)
308 pnpacpi_parse_allocated_ioresource(dev,
309 p->minimum, p->address_length,
310 p->granularity == 0xfff ? ACPI_DECODE_10 :
311 ACPI_DECODE_16, window);
314 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
317 struct pnp_dev *dev = data;
318 struct acpi_resource_irq *irq;
319 struct acpi_resource_dma *dma;
320 struct acpi_resource_io *io;
321 struct acpi_resource_fixed_io *fixed_io;
322 struct acpi_resource_vendor_typed *vendor_typed;
323 struct acpi_resource_memory24 *memory24;
324 struct acpi_resource_memory32 *memory32;
325 struct acpi_resource_fixed_memory32 *fixed_memory32;
326 struct acpi_resource_extended_irq *extended_irq;
330 case ACPI_RESOURCE_TYPE_IRQ:
332 * Per spec, only one interrupt per descriptor is allowed in
333 * _CRS, but some firmware violates this, so parse them all.
335 irq = &res->data.irq;
336 if (irq->interrupt_count == 0)
337 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
339 for (i = 0; i < irq->interrupt_count; i++) {
340 pnpacpi_parse_allocated_irqresource(dev,
348 * The IRQ encoder puts a single interrupt in each
349 * descriptor, so if a _CRS descriptor has more than
350 * one interrupt, we won't be able to re-encode it.
352 if (pnp_can_write(dev) && irq->interrupt_count > 1) {
353 dev_warn(&dev->dev, "multiple interrupts in "
354 "_CRS descriptor; configuration can't "
356 dev->capabilities &= ~PNP_WRITE;
361 case ACPI_RESOURCE_TYPE_DMA:
362 dma = &res->data.dma;
363 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
364 flags = dma_flags(dev, dma->type, dma->bus_master,
367 flags = IORESOURCE_DISABLED;
368 pnp_add_dma_resource(dev, dma->channels[0], flags);
371 case ACPI_RESOURCE_TYPE_IO:
373 pnpacpi_parse_allocated_ioresource(dev,
379 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
380 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
383 case ACPI_RESOURCE_TYPE_FIXED_IO:
384 fixed_io = &res->data.fixed_io;
385 pnpacpi_parse_allocated_ioresource(dev,
387 fixed_io->address_length,
391 case ACPI_RESOURCE_TYPE_VENDOR:
392 vendor_typed = &res->data.vendor_typed;
393 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
396 case ACPI_RESOURCE_TYPE_END_TAG:
399 case ACPI_RESOURCE_TYPE_MEMORY24:
400 memory24 = &res->data.memory24;
401 pnpacpi_parse_allocated_memresource(dev,
403 memory24->address_length,
404 memory24->write_protect, 0);
406 case ACPI_RESOURCE_TYPE_MEMORY32:
407 memory32 = &res->data.memory32;
408 pnpacpi_parse_allocated_memresource(dev,
410 memory32->address_length,
411 memory32->write_protect, 0);
413 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
414 fixed_memory32 = &res->data.fixed_memory32;
415 pnpacpi_parse_allocated_memresource(dev,
416 fixed_memory32->address,
417 fixed_memory32->address_length,
418 fixed_memory32->write_protect, 0);
420 case ACPI_RESOURCE_TYPE_ADDRESS16:
421 case ACPI_RESOURCE_TYPE_ADDRESS32:
422 case ACPI_RESOURCE_TYPE_ADDRESS64:
423 pnpacpi_parse_allocated_address_space(dev, res);
426 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
427 pnpacpi_parse_allocated_ext_address_space(dev, res);
430 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
431 extended_irq = &res->data.extended_irq;
433 if (extended_irq->interrupt_count == 0)
434 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
436 for (i = 0; i < extended_irq->interrupt_count; i++) {
437 pnpacpi_parse_allocated_irqresource(dev,
438 extended_irq->interrupts[i],
439 extended_irq->triggering,
440 extended_irq->polarity,
441 extended_irq->sharable);
445 * The IRQ encoder puts a single interrupt in each
446 * descriptor, so if a _CRS descriptor has more than
447 * one interrupt, we won't be able to re-encode it.
449 if (pnp_can_write(dev) &&
450 extended_irq->interrupt_count > 1) {
451 dev_warn(&dev->dev, "multiple interrupts in "
452 "_CRS descriptor; configuration can't "
454 dev->capabilities &= ~PNP_WRITE;
459 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
463 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
471 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
473 struct acpi_device *acpi_dev = dev->data;
474 acpi_handle handle = acpi_dev->handle;
477 pnp_dbg(&dev->dev, "parse allocated resources\n");
479 pnp_init_resources(dev);
481 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
482 pnpacpi_allocated_resource, dev);
484 if (ACPI_FAILURE(status)) {
485 if (status != AE_NOT_FOUND)
486 dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
492 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
493 unsigned int option_flags,
494 struct acpi_resource_dma *p)
497 unsigned char map = 0, flags;
499 if (p->channel_count == 0)
502 for (i = 0; i < p->channel_count; i++)
503 map |= 1 << p->channels[i];
505 flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
506 pnp_register_dma_resource(dev, option_flags, map, flags);
509 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
510 unsigned int option_flags,
511 struct acpi_resource_irq *p)
517 if (p->interrupt_count == 0)
520 bitmap_zero(map.bits, PNP_IRQ_NR);
521 for (i = 0; i < p->interrupt_count; i++)
522 if (p->interrupts[i])
523 __set_bit(p->interrupts[i], map.bits);
525 flags = irq_flags(p->triggering, p->polarity, p->sharable);
526 pnp_register_irq_resource(dev, option_flags, &map, flags);
529 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
530 unsigned int option_flags,
531 struct acpi_resource_extended_irq *p)
537 if (p->interrupt_count == 0)
540 bitmap_zero(map.bits, PNP_IRQ_NR);
541 for (i = 0; i < p->interrupt_count; i++) {
542 if (p->interrupts[i]) {
543 if (p->interrupts[i] < PNP_IRQ_NR)
544 __set_bit(p->interrupts[i], map.bits);
546 dev_err(&dev->dev, "ignoring IRQ %d option "
547 "(too large for %d entry bitmap)\n",
548 p->interrupts[i], PNP_IRQ_NR);
552 flags = irq_flags(p->triggering, p->polarity, p->sharable);
553 pnp_register_irq_resource(dev, option_flags, &map, flags);
556 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
557 unsigned int option_flags,
558 struct acpi_resource_io *io)
560 unsigned char flags = 0;
562 if (io->address_length == 0)
565 if (io->io_decode == ACPI_DECODE_16)
566 flags = IORESOURCE_IO_16BIT_ADDR;
567 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
568 io->alignment, io->address_length, flags);
571 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
572 unsigned int option_flags,
573 struct acpi_resource_fixed_io *io)
575 if (io->address_length == 0)
578 pnp_register_port_resource(dev, option_flags, io->address, io->address,
579 0, io->address_length, IORESOURCE_IO_FIXED);
582 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
583 unsigned int option_flags,
584 struct acpi_resource_memory24 *p)
586 unsigned char flags = 0;
588 if (p->address_length == 0)
591 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
592 flags = IORESOURCE_MEM_WRITEABLE;
593 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
594 p->alignment, p->address_length, flags);
597 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
598 unsigned int option_flags,
599 struct acpi_resource_memory32 *p)
601 unsigned char flags = 0;
603 if (p->address_length == 0)
606 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
607 flags = IORESOURCE_MEM_WRITEABLE;
608 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
609 p->alignment, p->address_length, flags);
612 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
613 unsigned int option_flags,
614 struct acpi_resource_fixed_memory32 *p)
616 unsigned char flags = 0;
618 if (p->address_length == 0)
621 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
622 flags = IORESOURCE_MEM_WRITEABLE;
623 pnp_register_mem_resource(dev, option_flags, p->address, p->address,
624 0, p->address_length, flags);
627 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
628 unsigned int option_flags,
629 struct acpi_resource *r)
631 struct acpi_resource_address64 addr, *p = &addr;
633 unsigned char flags = 0;
635 status = acpi_resource_to_address64(r, p);
636 if (ACPI_FAILURE(status)) {
637 dev_warn(&dev->dev, "can't convert resource type %d\n",
642 if (p->address_length == 0)
645 if (p->resource_type == ACPI_MEMORY_RANGE) {
646 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
647 flags = IORESOURCE_MEM_WRITEABLE;
648 pnp_register_mem_resource(dev, option_flags, p->minimum,
649 p->minimum, 0, p->address_length,
651 } else if (p->resource_type == ACPI_IO_RANGE)
652 pnp_register_port_resource(dev, option_flags, p->minimum,
653 p->minimum, 0, p->address_length,
654 IORESOURCE_IO_FIXED);
657 static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
658 unsigned int option_flags,
659 struct acpi_resource *r)
661 struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
662 unsigned char flags = 0;
664 if (p->address_length == 0)
667 if (p->resource_type == ACPI_MEMORY_RANGE) {
668 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
669 flags = IORESOURCE_MEM_WRITEABLE;
670 pnp_register_mem_resource(dev, option_flags, p->minimum,
671 p->minimum, 0, p->address_length,
673 } else if (p->resource_type == ACPI_IO_RANGE)
674 pnp_register_port_resource(dev, option_flags, p->minimum,
675 p->minimum, 0, p->address_length,
676 IORESOURCE_IO_FIXED);
679 struct acpipnp_parse_option_s {
681 unsigned int option_flags;
684 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
688 struct acpipnp_parse_option_s *parse_data = data;
689 struct pnp_dev *dev = parse_data->dev;
690 unsigned int option_flags = parse_data->option_flags;
693 case ACPI_RESOURCE_TYPE_IRQ:
694 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
697 case ACPI_RESOURCE_TYPE_DMA:
698 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
701 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
702 switch (res->data.start_dpf.compatibility_priority) {
703 case ACPI_GOOD_CONFIGURATION:
704 priority = PNP_RES_PRIORITY_PREFERRED;
707 case ACPI_ACCEPTABLE_CONFIGURATION:
708 priority = PNP_RES_PRIORITY_ACCEPTABLE;
711 case ACPI_SUB_OPTIMAL_CONFIGURATION:
712 priority = PNP_RES_PRIORITY_FUNCTIONAL;
715 priority = PNP_RES_PRIORITY_INVALID;
718 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
721 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
722 parse_data->option_flags = 0;
725 case ACPI_RESOURCE_TYPE_IO:
726 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
729 case ACPI_RESOURCE_TYPE_FIXED_IO:
730 pnpacpi_parse_fixed_port_option(dev, option_flags,
731 &res->data.fixed_io);
734 case ACPI_RESOURCE_TYPE_VENDOR:
735 case ACPI_RESOURCE_TYPE_END_TAG:
738 case ACPI_RESOURCE_TYPE_MEMORY24:
739 pnpacpi_parse_mem24_option(dev, option_flags,
740 &res->data.memory24);
743 case ACPI_RESOURCE_TYPE_MEMORY32:
744 pnpacpi_parse_mem32_option(dev, option_flags,
745 &res->data.memory32);
748 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
749 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
750 &res->data.fixed_memory32);
753 case ACPI_RESOURCE_TYPE_ADDRESS16:
754 case ACPI_RESOURCE_TYPE_ADDRESS32:
755 case ACPI_RESOURCE_TYPE_ADDRESS64:
756 pnpacpi_parse_address_option(dev, option_flags, res);
759 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
760 pnpacpi_parse_ext_address_option(dev, option_flags, res);
763 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
764 pnpacpi_parse_ext_irq_option(dev, option_flags,
765 &res->data.extended_irq);
768 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
772 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
780 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
782 struct acpi_device *acpi_dev = dev->data;
783 acpi_handle handle = acpi_dev->handle;
785 struct acpipnp_parse_option_s parse_data;
787 pnp_dbg(&dev->dev, "parse resource options\n");
789 parse_data.dev = dev;
790 parse_data.option_flags = 0;
792 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
793 pnpacpi_option_resource, &parse_data);
795 if (ACPI_FAILURE(status)) {
796 if (status != AE_NOT_FOUND)
797 dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
803 static int pnpacpi_supported_resource(struct acpi_resource *res)
806 case ACPI_RESOURCE_TYPE_IRQ:
807 case ACPI_RESOURCE_TYPE_DMA:
808 case ACPI_RESOURCE_TYPE_IO:
809 case ACPI_RESOURCE_TYPE_FIXED_IO:
810 case ACPI_RESOURCE_TYPE_MEMORY24:
811 case ACPI_RESOURCE_TYPE_MEMORY32:
812 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
813 case ACPI_RESOURCE_TYPE_ADDRESS16:
814 case ACPI_RESOURCE_TYPE_ADDRESS32:
815 case ACPI_RESOURCE_TYPE_ADDRESS64:
816 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
817 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
826 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
831 if (pnpacpi_supported_resource(res))
836 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
838 struct acpi_resource **resource = data;
840 if (pnpacpi_supported_resource(res)) {
841 (*resource)->type = res->type;
842 (*resource)->length = sizeof(struct acpi_resource);
843 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
844 (*resource)->data.irq.descriptor_length =
845 res->data.irq.descriptor_length;
852 int pnpacpi_build_resource_template(struct pnp_dev *dev,
853 struct acpi_buffer *buffer)
855 struct acpi_device *acpi_dev = dev->data;
856 acpi_handle handle = acpi_dev->handle;
857 struct acpi_resource *resource;
861 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
862 pnpacpi_count_resources, &res_cnt);
863 if (ACPI_FAILURE(status)) {
864 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
869 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
870 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
871 if (!buffer->pointer)
874 resource = (struct acpi_resource *)buffer->pointer;
875 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
876 pnpacpi_type_resources, &resource);
877 if (ACPI_FAILURE(status)) {
878 kfree(buffer->pointer);
879 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
882 /* resource will pointer the end resource now */
883 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
888 static void pnpacpi_encode_irq(struct pnp_dev *dev,
889 struct acpi_resource *resource,
892 struct acpi_resource_irq *irq = &resource->data.irq;
893 int triggering, polarity, shareable;
895 if (!pnp_resource_enabled(p)) {
896 irq->interrupt_count = 0;
897 pnp_dbg(&dev->dev, " encode irq (%s)\n",
898 p ? "disabled" : "missing");
902 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
903 irq->triggering = triggering;
904 irq->polarity = polarity;
905 irq->sharable = shareable;
906 irq->interrupt_count = 1;
907 irq->interrupts[0] = p->start;
909 pnp_dbg(&dev->dev, " encode irq %d %s %s %s (%d-byte descriptor)\n",
911 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
912 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
913 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
914 irq->descriptor_length);
917 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
918 struct acpi_resource *resource,
921 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
922 int triggering, polarity, shareable;
924 if (!pnp_resource_enabled(p)) {
925 extended_irq->interrupt_count = 0;
926 pnp_dbg(&dev->dev, " encode extended irq (%s)\n",
927 p ? "disabled" : "missing");
931 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
932 extended_irq->producer_consumer = ACPI_CONSUMER;
933 extended_irq->triggering = triggering;
934 extended_irq->polarity = polarity;
935 extended_irq->sharable = shareable;
936 extended_irq->interrupt_count = 1;
937 extended_irq->interrupts[0] = p->start;
939 pnp_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
940 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
941 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
942 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
945 static void pnpacpi_encode_dma(struct pnp_dev *dev,
946 struct acpi_resource *resource,
949 struct acpi_resource_dma *dma = &resource->data.dma;
951 if (!pnp_resource_enabled(p)) {
952 dma->channel_count = 0;
953 pnp_dbg(&dev->dev, " encode dma (%s)\n",
954 p ? "disabled" : "missing");
958 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
959 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
960 case IORESOURCE_DMA_TYPEA:
961 dma->type = ACPI_TYPE_A;
963 case IORESOURCE_DMA_TYPEB:
964 dma->type = ACPI_TYPE_B;
966 case IORESOURCE_DMA_TYPEF:
967 dma->type = ACPI_TYPE_F;
970 dma->type = ACPI_COMPATIBILITY;
973 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
974 case IORESOURCE_DMA_8BIT:
975 dma->transfer = ACPI_TRANSFER_8;
977 case IORESOURCE_DMA_8AND16BIT:
978 dma->transfer = ACPI_TRANSFER_8_16;
981 dma->transfer = ACPI_TRANSFER_16;
984 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
985 dma->channel_count = 1;
986 dma->channels[0] = p->start;
988 pnp_dbg(&dev->dev, " encode dma %d "
989 "type %#x transfer %#x master %d\n",
990 (int) p->start, dma->type, dma->transfer, dma->bus_master);
993 static void pnpacpi_encode_io(struct pnp_dev *dev,
994 struct acpi_resource *resource,
997 struct acpi_resource_io *io = &resource->data.io;
999 if (pnp_resource_enabled(p)) {
1000 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
1001 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
1002 ACPI_DECODE_16 : ACPI_DECODE_10;
1003 io->minimum = p->start;
1004 io->maximum = p->end;
1005 io->alignment = 0; /* Correct? */
1006 io->address_length = p->end - p->start + 1;
1009 io->address_length = 0;
1012 pnp_dbg(&dev->dev, " encode io %#x-%#x decode %#x\n", io->minimum,
1013 io->minimum + io->address_length - 1, io->io_decode);
1016 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1017 struct acpi_resource *resource,
1020 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1022 if (pnp_resource_enabled(p)) {
1023 fixed_io->address = p->start;
1024 fixed_io->address_length = p->end - p->start + 1;
1026 fixed_io->address = 0;
1027 fixed_io->address_length = 0;
1030 pnp_dbg(&dev->dev, " encode fixed_io %#x-%#x\n", fixed_io->address,
1031 fixed_io->address + fixed_io->address_length - 1);
1034 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1035 struct acpi_resource *resource,
1038 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1040 if (pnp_resource_enabled(p)) {
1041 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
1042 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1043 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1044 memory24->minimum = p->start;
1045 memory24->maximum = p->end;
1046 memory24->alignment = 0;
1047 memory24->address_length = p->end - p->start + 1;
1049 memory24->minimum = 0;
1050 memory24->address_length = 0;
1053 pnp_dbg(&dev->dev, " encode mem24 %#x-%#x write_protect %#x\n",
1055 memory24->minimum + memory24->address_length - 1,
1056 memory24->write_protect);
1059 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1060 struct acpi_resource *resource,
1063 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1065 if (pnp_resource_enabled(p)) {
1066 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1067 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1068 memory32->minimum = p->start;
1069 memory32->maximum = p->end;
1070 memory32->alignment = 0;
1071 memory32->address_length = p->end - p->start + 1;
1073 memory32->minimum = 0;
1074 memory32->alignment = 0;
1077 pnp_dbg(&dev->dev, " encode mem32 %#x-%#x write_protect %#x\n",
1079 memory32->minimum + memory32->address_length - 1,
1080 memory32->write_protect);
1083 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1084 struct acpi_resource *resource,
1087 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1089 if (pnp_resource_enabled(p)) {
1090 fixed_memory32->write_protect =
1091 p->flags & IORESOURCE_MEM_WRITEABLE ?
1092 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1093 fixed_memory32->address = p->start;
1094 fixed_memory32->address_length = p->end - p->start + 1;
1096 fixed_memory32->address = 0;
1097 fixed_memory32->address_length = 0;
1100 pnp_dbg(&dev->dev, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
1101 fixed_memory32->address,
1102 fixed_memory32->address + fixed_memory32->address_length - 1,
1103 fixed_memory32->write_protect);
1106 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1109 /* pnpacpi_build_resource_template allocates extra mem */
1110 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1111 struct acpi_resource *resource = buffer->pointer;
1112 int port = 0, irq = 0, dma = 0, mem = 0;
1114 pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1115 while (i < res_cnt) {
1116 switch (resource->type) {
1117 case ACPI_RESOURCE_TYPE_IRQ:
1118 pnpacpi_encode_irq(dev, resource,
1119 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1123 case ACPI_RESOURCE_TYPE_DMA:
1124 pnpacpi_encode_dma(dev, resource,
1125 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1128 case ACPI_RESOURCE_TYPE_IO:
1129 pnpacpi_encode_io(dev, resource,
1130 pnp_get_resource(dev, IORESOURCE_IO, port));
1133 case ACPI_RESOURCE_TYPE_FIXED_IO:
1134 pnpacpi_encode_fixed_io(dev, resource,
1135 pnp_get_resource(dev, IORESOURCE_IO, port));
1138 case ACPI_RESOURCE_TYPE_MEMORY24:
1139 pnpacpi_encode_mem24(dev, resource,
1140 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1143 case ACPI_RESOURCE_TYPE_MEMORY32:
1144 pnpacpi_encode_mem32(dev, resource,
1145 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1148 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1149 pnpacpi_encode_fixed_mem32(dev, resource,
1150 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1153 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1154 pnpacpi_encode_ext_irq(dev, resource,
1155 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1158 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1159 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1160 case ACPI_RESOURCE_TYPE_VENDOR:
1161 case ACPI_RESOURCE_TYPE_END_TAG:
1162 case ACPI_RESOURCE_TYPE_ADDRESS16:
1163 case ACPI_RESOURCE_TYPE_ADDRESS32:
1164 case ACPI_RESOURCE_TYPE_ADDRESS64:
1165 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1166 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1167 default: /* other type */
1168 dev_warn(&dev->dev, "can't encode unknown resource "
1169 "type %d\n", resource->type);