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>
27 #include <linux/slab.h>
32 #define valid_IRQ(i) (1)
34 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
40 static int irq_flags(int triggering, int polarity, int shareable)
44 if (triggering == ACPI_LEVEL_SENSITIVE) {
45 if (polarity == ACPI_ACTIVE_LOW)
46 flags = IORESOURCE_IRQ_LOWLEVEL;
48 flags = IORESOURCE_IRQ_HIGHLEVEL;
50 if (polarity == ACPI_ACTIVE_LOW)
51 flags = IORESOURCE_IRQ_LOWEDGE;
53 flags = IORESOURCE_IRQ_HIGHEDGE;
56 if (shareable == ACPI_SHARED)
57 flags |= IORESOURCE_IRQ_SHAREABLE;
62 static void decode_irq_flags(struct pnp_dev *dev, int flags, int *triggering,
63 int *polarity, int *shareable)
65 switch (flags & (IORESOURCE_IRQ_LOWLEVEL | IORESOURCE_IRQ_HIGHLEVEL |
66 IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE)) {
67 case IORESOURCE_IRQ_LOWLEVEL:
68 *triggering = ACPI_LEVEL_SENSITIVE;
69 *polarity = ACPI_ACTIVE_LOW;
71 case IORESOURCE_IRQ_HIGHLEVEL:
72 *triggering = ACPI_LEVEL_SENSITIVE;
73 *polarity = ACPI_ACTIVE_HIGH;
75 case IORESOURCE_IRQ_LOWEDGE:
76 *triggering = ACPI_EDGE_SENSITIVE;
77 *polarity = ACPI_ACTIVE_LOW;
79 case IORESOURCE_IRQ_HIGHEDGE:
80 *triggering = ACPI_EDGE_SENSITIVE;
81 *polarity = ACPI_ACTIVE_HIGH;
84 dev_err(&dev->dev, "can't encode invalid IRQ mode %#x\n",
86 *triggering = ACPI_EDGE_SENSITIVE;
87 *polarity = ACPI_ACTIVE_HIGH;
91 if (flags & IORESOURCE_IRQ_SHAREABLE)
92 *shareable = ACPI_SHARED;
94 *shareable = ACPI_EXCLUSIVE;
97 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
98 u32 gsi, int triggering,
99 int polarity, int shareable)
104 if (!valid_IRQ(gsi)) {
105 pnp_add_irq_resource(dev, gsi, IORESOURCE_DISABLED);
110 * in IO-APIC mode, use overrided attribute. Two reasons:
111 * 1. BIOS bug in DSDT
112 * 2. BIOS uses IO-APIC mode Interrupt Source Override
114 if (!acpi_get_override_irq(gsi, &t, &p)) {
115 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
116 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
118 if (triggering != t || polarity != p) {
119 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
120 gsi, t ? "edge":"level", p ? "low":"high");
126 flags = irq_flags(triggering, polarity, shareable);
127 irq = acpi_register_gsi(&dev->dev, gsi, triggering, polarity);
129 pcibios_penalize_isa_irq(irq, 1);
131 flags |= IORESOURCE_DISABLED;
133 pnp_add_irq_resource(dev, irq, flags);
136 static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
142 flags |= IORESOURCE_DMA_MASTER;
144 case ACPI_COMPATIBILITY:
145 flags |= IORESOURCE_DMA_COMPATIBLE;
148 flags |= IORESOURCE_DMA_TYPEA;
151 flags |= IORESOURCE_DMA_TYPEB;
154 flags |= IORESOURCE_DMA_TYPEF;
157 /* Set a default value ? */
158 flags |= IORESOURCE_DMA_COMPATIBLE;
159 dev_err(&dev->dev, "invalid DMA type %d\n", type);
162 case ACPI_TRANSFER_8:
163 flags |= IORESOURCE_DMA_8BIT;
165 case ACPI_TRANSFER_8_16:
166 flags |= IORESOURCE_DMA_8AND16BIT;
168 case ACPI_TRANSFER_16:
169 flags |= IORESOURCE_DMA_16BIT;
172 /* Set a default value ? */
173 flags |= IORESOURCE_DMA_8AND16BIT;
174 dev_err(&dev->dev, "invalid DMA transfer type %d\n", transfer);
180 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
181 u64 len, int io_decode,
185 u64 end = start + len - 1;
187 if (io_decode == ACPI_DECODE_16)
188 flags |= IORESOURCE_IO_16BIT_ADDR;
189 if (len == 0 || end >= 0x10003)
190 flags |= IORESOURCE_DISABLED;
192 flags |= IORESOURCE_WINDOW;
194 pnp_add_io_resource(dev, start, end, flags);
198 * Device CSRs that do not appear in PCI config space should be described
199 * via ACPI. This would normally be done with Address Space Descriptors
200 * marked as "consumer-only," but old versions of Windows and Linux ignore
201 * the producer/consumer flag, so HP invented a vendor-defined resource to
202 * describe the location and size of CSR space.
204 static struct acpi_vendor_uuid hp_ccsr_uuid = {
206 .data = { 0xf9, 0xad, 0xe9, 0x69, 0x4f, 0x92, 0x5f, 0xab, 0xf6, 0x4a,
207 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad },
210 static int vendor_resource_matches(struct pnp_dev *dev,
211 struct acpi_resource_vendor_typed *vendor,
212 struct acpi_vendor_uuid *match,
215 int uuid_len = sizeof(vendor->uuid);
216 u8 uuid_subtype = vendor->uuid_subtype;
217 u8 *uuid = vendor->uuid;
220 /* byte_length includes uuid_subtype and uuid */
221 actual_len = vendor->byte_length - uuid_len - 1;
223 if (uuid_subtype == match->subtype &&
224 uuid_len == sizeof(match->data) &&
225 memcmp(uuid, match->data, uuid_len) == 0) {
226 if (expected_len && expected_len != actual_len) {
227 dev_err(&dev->dev, "wrong vendor descriptor size; "
228 "expected %d, found %d bytes\n",
229 expected_len, actual_len);
239 static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
240 struct acpi_resource_vendor_typed *vendor)
242 if (vendor_resource_matches(dev, vendor, &hp_ccsr_uuid, 16)) {
245 memcpy(&start, vendor->byte_data, sizeof(start));
246 memcpy(&length, vendor->byte_data + 8, sizeof(length));
248 pnp_add_mem_resource(dev, start, start + length - 1, 0);
252 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
254 int write_protect, int window)
257 u64 end = start + len - 1;
260 flags |= IORESOURCE_DISABLED;
261 if (write_protect == ACPI_READ_WRITE_MEMORY)
262 flags |= IORESOURCE_MEM_WRITEABLE;
264 flags |= IORESOURCE_WINDOW;
266 pnp_add_mem_resource(dev, start, end, flags);
269 static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
272 u64 end = start + len - 1;
274 pnp_add_bus_resource(dev, start, end);
277 static u64 addr_space_length(struct pnp_dev *dev, u64 min, u64 max, u64 len)
281 max_len = max - min + 1;
286 * Per 6.4.3.5, _LEN cannot exceed _MAX - _MIN + 1, but some BIOSes
287 * don't do this correctly, e.g.,
288 * https://bugzilla.kernel.org/show_bug.cgi?id=15480
291 "resource length %#llx doesn't fit in %#llx-%#llx, trimming\n",
292 (unsigned long long) len, (unsigned long long) min,
293 (unsigned long long) max);
297 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
298 struct acpi_resource *res)
300 struct acpi_resource_address64 addr, *p = &addr;
305 status = acpi_resource_to_address64(res, p);
306 if (!ACPI_SUCCESS(status)) {
307 dev_warn(&dev->dev, "failed to convert resource type %d\n",
312 len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
313 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
315 if (p->resource_type == ACPI_MEMORY_RANGE)
316 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
317 p->info.mem.write_protect, window);
318 else if (p->resource_type == ACPI_IO_RANGE)
319 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
320 p->granularity == 0xfff ? ACPI_DECODE_10 :
321 ACPI_DECODE_16, window);
322 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
323 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
326 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
327 struct acpi_resource *res)
329 struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
333 len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
334 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
336 if (p->resource_type == ACPI_MEMORY_RANGE)
337 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
338 p->info.mem.write_protect, window);
339 else if (p->resource_type == ACPI_IO_RANGE)
340 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
341 p->granularity == 0xfff ? ACPI_DECODE_10 :
342 ACPI_DECODE_16, window);
343 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
344 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
347 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
350 struct pnp_dev *dev = data;
351 struct acpi_resource_irq *irq;
352 struct acpi_resource_dma *dma;
353 struct acpi_resource_io *io;
354 struct acpi_resource_fixed_io *fixed_io;
355 struct acpi_resource_vendor_typed *vendor_typed;
356 struct acpi_resource_memory24 *memory24;
357 struct acpi_resource_memory32 *memory32;
358 struct acpi_resource_fixed_memory32 *fixed_memory32;
359 struct acpi_resource_extended_irq *extended_irq;
363 case ACPI_RESOURCE_TYPE_IRQ:
365 * Per spec, only one interrupt per descriptor is allowed in
366 * _CRS, but some firmware violates this, so parse them all.
368 irq = &res->data.irq;
369 if (irq->interrupt_count == 0)
370 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
372 for (i = 0; i < irq->interrupt_count; i++) {
373 pnpacpi_parse_allocated_irqresource(dev,
381 * The IRQ encoder puts a single interrupt in each
382 * descriptor, so if a _CRS descriptor has more than
383 * one interrupt, we won't be able to re-encode it.
385 if (pnp_can_write(dev) && irq->interrupt_count > 1) {
386 dev_warn(&dev->dev, "multiple interrupts in "
387 "_CRS descriptor; configuration can't "
389 dev->capabilities &= ~PNP_WRITE;
394 case ACPI_RESOURCE_TYPE_DMA:
395 dma = &res->data.dma;
396 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
397 flags = dma_flags(dev, dma->type, dma->bus_master,
400 flags = IORESOURCE_DISABLED;
401 pnp_add_dma_resource(dev, dma->channels[0], flags);
404 case ACPI_RESOURCE_TYPE_IO:
406 pnpacpi_parse_allocated_ioresource(dev,
412 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
413 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
416 case ACPI_RESOURCE_TYPE_FIXED_IO:
417 fixed_io = &res->data.fixed_io;
418 pnpacpi_parse_allocated_ioresource(dev,
420 fixed_io->address_length,
424 case ACPI_RESOURCE_TYPE_VENDOR:
425 vendor_typed = &res->data.vendor_typed;
426 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
429 case ACPI_RESOURCE_TYPE_END_TAG:
432 case ACPI_RESOURCE_TYPE_MEMORY24:
433 memory24 = &res->data.memory24;
434 pnpacpi_parse_allocated_memresource(dev,
436 memory24->address_length,
437 memory24->write_protect, 0);
439 case ACPI_RESOURCE_TYPE_MEMORY32:
440 memory32 = &res->data.memory32;
441 pnpacpi_parse_allocated_memresource(dev,
443 memory32->address_length,
444 memory32->write_protect, 0);
446 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
447 fixed_memory32 = &res->data.fixed_memory32;
448 pnpacpi_parse_allocated_memresource(dev,
449 fixed_memory32->address,
450 fixed_memory32->address_length,
451 fixed_memory32->write_protect, 0);
453 case ACPI_RESOURCE_TYPE_ADDRESS16:
454 case ACPI_RESOURCE_TYPE_ADDRESS32:
455 case ACPI_RESOURCE_TYPE_ADDRESS64:
456 pnpacpi_parse_allocated_address_space(dev, res);
459 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
460 pnpacpi_parse_allocated_ext_address_space(dev, res);
463 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
464 extended_irq = &res->data.extended_irq;
466 if (extended_irq->interrupt_count == 0)
467 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
469 for (i = 0; i < extended_irq->interrupt_count; i++) {
470 pnpacpi_parse_allocated_irqresource(dev,
471 extended_irq->interrupts[i],
472 extended_irq->triggering,
473 extended_irq->polarity,
474 extended_irq->sharable);
478 * The IRQ encoder puts a single interrupt in each
479 * descriptor, so if a _CRS descriptor has more than
480 * one interrupt, we won't be able to re-encode it.
482 if (pnp_can_write(dev) &&
483 extended_irq->interrupt_count > 1) {
484 dev_warn(&dev->dev, "multiple interrupts in "
485 "_CRS descriptor; configuration can't "
487 dev->capabilities &= ~PNP_WRITE;
492 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
496 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
504 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
506 struct acpi_device *acpi_dev = dev->data;
507 acpi_handle handle = acpi_dev->handle;
510 pnp_dbg(&dev->dev, "parse allocated resources\n");
512 pnp_init_resources(dev);
514 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
515 pnpacpi_allocated_resource, dev);
517 if (ACPI_FAILURE(status)) {
518 if (status != AE_NOT_FOUND)
519 dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
525 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
526 unsigned int option_flags,
527 struct acpi_resource_dma *p)
530 unsigned char map = 0, flags;
532 if (p->channel_count == 0)
535 for (i = 0; i < p->channel_count; i++)
536 map |= 1 << p->channels[i];
538 flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
539 pnp_register_dma_resource(dev, option_flags, map, flags);
542 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
543 unsigned int option_flags,
544 struct acpi_resource_irq *p)
550 if (p->interrupt_count == 0)
553 bitmap_zero(map.bits, PNP_IRQ_NR);
554 for (i = 0; i < p->interrupt_count; i++)
555 if (p->interrupts[i])
556 __set_bit(p->interrupts[i], map.bits);
558 flags = irq_flags(p->triggering, p->polarity, p->sharable);
559 pnp_register_irq_resource(dev, option_flags, &map, flags);
562 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
563 unsigned int option_flags,
564 struct acpi_resource_extended_irq *p)
570 if (p->interrupt_count == 0)
573 bitmap_zero(map.bits, PNP_IRQ_NR);
574 for (i = 0; i < p->interrupt_count; i++) {
575 if (p->interrupts[i]) {
576 if (p->interrupts[i] < PNP_IRQ_NR)
577 __set_bit(p->interrupts[i], map.bits);
579 dev_err(&dev->dev, "ignoring IRQ %d option "
580 "(too large for %d entry bitmap)\n",
581 p->interrupts[i], PNP_IRQ_NR);
585 flags = irq_flags(p->triggering, p->polarity, p->sharable);
586 pnp_register_irq_resource(dev, option_flags, &map, flags);
589 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
590 unsigned int option_flags,
591 struct acpi_resource_io *io)
593 unsigned char flags = 0;
595 if (io->address_length == 0)
598 if (io->io_decode == ACPI_DECODE_16)
599 flags = IORESOURCE_IO_16BIT_ADDR;
600 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
601 io->alignment, io->address_length, flags);
604 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
605 unsigned int option_flags,
606 struct acpi_resource_fixed_io *io)
608 if (io->address_length == 0)
611 pnp_register_port_resource(dev, option_flags, io->address, io->address,
612 0, io->address_length, IORESOURCE_IO_FIXED);
615 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
616 unsigned int option_flags,
617 struct acpi_resource_memory24 *p)
619 unsigned char flags = 0;
621 if (p->address_length == 0)
624 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
625 flags = IORESOURCE_MEM_WRITEABLE;
626 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
627 p->alignment, p->address_length, flags);
630 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
631 unsigned int option_flags,
632 struct acpi_resource_memory32 *p)
634 unsigned char flags = 0;
636 if (p->address_length == 0)
639 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
640 flags = IORESOURCE_MEM_WRITEABLE;
641 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
642 p->alignment, p->address_length, flags);
645 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
646 unsigned int option_flags,
647 struct acpi_resource_fixed_memory32 *p)
649 unsigned char flags = 0;
651 if (p->address_length == 0)
654 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
655 flags = IORESOURCE_MEM_WRITEABLE;
656 pnp_register_mem_resource(dev, option_flags, p->address, p->address,
657 0, p->address_length, flags);
660 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
661 unsigned int option_flags,
662 struct acpi_resource *r)
664 struct acpi_resource_address64 addr, *p = &addr;
666 unsigned char flags = 0;
668 status = acpi_resource_to_address64(r, p);
669 if (ACPI_FAILURE(status)) {
670 dev_warn(&dev->dev, "can't convert resource type %d\n",
675 if (p->address_length == 0)
678 if (p->resource_type == ACPI_MEMORY_RANGE) {
679 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
680 flags = IORESOURCE_MEM_WRITEABLE;
681 pnp_register_mem_resource(dev, option_flags, p->minimum,
682 p->minimum, 0, p->address_length,
684 } else if (p->resource_type == ACPI_IO_RANGE)
685 pnp_register_port_resource(dev, option_flags, p->minimum,
686 p->minimum, 0, p->address_length,
687 IORESOURCE_IO_FIXED);
690 static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
691 unsigned int option_flags,
692 struct acpi_resource *r)
694 struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
695 unsigned char flags = 0;
697 if (p->address_length == 0)
700 if (p->resource_type == ACPI_MEMORY_RANGE) {
701 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
702 flags = IORESOURCE_MEM_WRITEABLE;
703 pnp_register_mem_resource(dev, option_flags, p->minimum,
704 p->minimum, 0, p->address_length,
706 } else if (p->resource_type == ACPI_IO_RANGE)
707 pnp_register_port_resource(dev, option_flags, p->minimum,
708 p->minimum, 0, p->address_length,
709 IORESOURCE_IO_FIXED);
712 struct acpipnp_parse_option_s {
714 unsigned int option_flags;
717 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
721 struct acpipnp_parse_option_s *parse_data = data;
722 struct pnp_dev *dev = parse_data->dev;
723 unsigned int option_flags = parse_data->option_flags;
726 case ACPI_RESOURCE_TYPE_IRQ:
727 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
730 case ACPI_RESOURCE_TYPE_DMA:
731 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
734 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
735 switch (res->data.start_dpf.compatibility_priority) {
736 case ACPI_GOOD_CONFIGURATION:
737 priority = PNP_RES_PRIORITY_PREFERRED;
740 case ACPI_ACCEPTABLE_CONFIGURATION:
741 priority = PNP_RES_PRIORITY_ACCEPTABLE;
744 case ACPI_SUB_OPTIMAL_CONFIGURATION:
745 priority = PNP_RES_PRIORITY_FUNCTIONAL;
748 priority = PNP_RES_PRIORITY_INVALID;
751 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
754 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
755 parse_data->option_flags = 0;
758 case ACPI_RESOURCE_TYPE_IO:
759 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
762 case ACPI_RESOURCE_TYPE_FIXED_IO:
763 pnpacpi_parse_fixed_port_option(dev, option_flags,
764 &res->data.fixed_io);
767 case ACPI_RESOURCE_TYPE_VENDOR:
768 case ACPI_RESOURCE_TYPE_END_TAG:
771 case ACPI_RESOURCE_TYPE_MEMORY24:
772 pnpacpi_parse_mem24_option(dev, option_flags,
773 &res->data.memory24);
776 case ACPI_RESOURCE_TYPE_MEMORY32:
777 pnpacpi_parse_mem32_option(dev, option_flags,
778 &res->data.memory32);
781 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
782 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
783 &res->data.fixed_memory32);
786 case ACPI_RESOURCE_TYPE_ADDRESS16:
787 case ACPI_RESOURCE_TYPE_ADDRESS32:
788 case ACPI_RESOURCE_TYPE_ADDRESS64:
789 pnpacpi_parse_address_option(dev, option_flags, res);
792 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
793 pnpacpi_parse_ext_address_option(dev, option_flags, res);
796 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
797 pnpacpi_parse_ext_irq_option(dev, option_flags,
798 &res->data.extended_irq);
801 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
805 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
813 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
815 struct acpi_device *acpi_dev = dev->data;
816 acpi_handle handle = acpi_dev->handle;
818 struct acpipnp_parse_option_s parse_data;
820 pnp_dbg(&dev->dev, "parse resource options\n");
822 parse_data.dev = dev;
823 parse_data.option_flags = 0;
825 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
826 pnpacpi_option_resource, &parse_data);
828 if (ACPI_FAILURE(status)) {
829 if (status != AE_NOT_FOUND)
830 dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
836 static int pnpacpi_supported_resource(struct acpi_resource *res)
839 case ACPI_RESOURCE_TYPE_IRQ:
840 case ACPI_RESOURCE_TYPE_DMA:
841 case ACPI_RESOURCE_TYPE_IO:
842 case ACPI_RESOURCE_TYPE_FIXED_IO:
843 case ACPI_RESOURCE_TYPE_MEMORY24:
844 case ACPI_RESOURCE_TYPE_MEMORY32:
845 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
846 case ACPI_RESOURCE_TYPE_ADDRESS16:
847 case ACPI_RESOURCE_TYPE_ADDRESS32:
848 case ACPI_RESOURCE_TYPE_ADDRESS64:
849 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
850 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
859 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
864 if (pnpacpi_supported_resource(res))
869 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
871 struct acpi_resource **resource = data;
873 if (pnpacpi_supported_resource(res)) {
874 (*resource)->type = res->type;
875 (*resource)->length = sizeof(struct acpi_resource);
876 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
877 (*resource)->data.irq.descriptor_length =
878 res->data.irq.descriptor_length;
885 int pnpacpi_build_resource_template(struct pnp_dev *dev,
886 struct acpi_buffer *buffer)
888 struct acpi_device *acpi_dev = dev->data;
889 acpi_handle handle = acpi_dev->handle;
890 struct acpi_resource *resource;
894 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
895 pnpacpi_count_resources, &res_cnt);
896 if (ACPI_FAILURE(status)) {
897 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
902 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
903 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
904 if (!buffer->pointer)
907 resource = (struct acpi_resource *)buffer->pointer;
908 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
909 pnpacpi_type_resources, &resource);
910 if (ACPI_FAILURE(status)) {
911 kfree(buffer->pointer);
912 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
915 /* resource will pointer the end resource now */
916 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
921 static void pnpacpi_encode_irq(struct pnp_dev *dev,
922 struct acpi_resource *resource,
925 struct acpi_resource_irq *irq = &resource->data.irq;
926 int triggering, polarity, shareable;
928 if (!pnp_resource_enabled(p)) {
929 irq->interrupt_count = 0;
930 pnp_dbg(&dev->dev, " encode irq (%s)\n",
931 p ? "disabled" : "missing");
935 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
936 irq->triggering = triggering;
937 irq->polarity = polarity;
938 irq->sharable = shareable;
939 irq->interrupt_count = 1;
940 irq->interrupts[0] = p->start;
942 pnp_dbg(&dev->dev, " encode irq %d %s %s %s (%d-byte descriptor)\n",
944 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
945 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
946 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
947 irq->descriptor_length);
950 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
951 struct acpi_resource *resource,
954 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
955 int triggering, polarity, shareable;
957 if (!pnp_resource_enabled(p)) {
958 extended_irq->interrupt_count = 0;
959 pnp_dbg(&dev->dev, " encode extended irq (%s)\n",
960 p ? "disabled" : "missing");
964 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
965 extended_irq->producer_consumer = ACPI_CONSUMER;
966 extended_irq->triggering = triggering;
967 extended_irq->polarity = polarity;
968 extended_irq->sharable = shareable;
969 extended_irq->interrupt_count = 1;
970 extended_irq->interrupts[0] = p->start;
972 pnp_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
973 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
974 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
975 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
978 static void pnpacpi_encode_dma(struct pnp_dev *dev,
979 struct acpi_resource *resource,
982 struct acpi_resource_dma *dma = &resource->data.dma;
984 if (!pnp_resource_enabled(p)) {
985 dma->channel_count = 0;
986 pnp_dbg(&dev->dev, " encode dma (%s)\n",
987 p ? "disabled" : "missing");
991 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
992 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
993 case IORESOURCE_DMA_TYPEA:
994 dma->type = ACPI_TYPE_A;
996 case IORESOURCE_DMA_TYPEB:
997 dma->type = ACPI_TYPE_B;
999 case IORESOURCE_DMA_TYPEF:
1000 dma->type = ACPI_TYPE_F;
1003 dma->type = ACPI_COMPATIBILITY;
1006 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
1007 case IORESOURCE_DMA_8BIT:
1008 dma->transfer = ACPI_TRANSFER_8;
1010 case IORESOURCE_DMA_8AND16BIT:
1011 dma->transfer = ACPI_TRANSFER_8_16;
1014 dma->transfer = ACPI_TRANSFER_16;
1017 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
1018 dma->channel_count = 1;
1019 dma->channels[0] = p->start;
1021 pnp_dbg(&dev->dev, " encode dma %d "
1022 "type %#x transfer %#x master %d\n",
1023 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1026 static void pnpacpi_encode_io(struct pnp_dev *dev,
1027 struct acpi_resource *resource,
1030 struct acpi_resource_io *io = &resource->data.io;
1032 if (pnp_resource_enabled(p)) {
1033 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
1034 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
1035 ACPI_DECODE_16 : ACPI_DECODE_10;
1036 io->minimum = p->start;
1037 io->maximum = p->end;
1038 io->alignment = 0; /* Correct? */
1039 io->address_length = p->end - p->start + 1;
1042 io->address_length = 0;
1045 pnp_dbg(&dev->dev, " encode io %#x-%#x decode %#x\n", io->minimum,
1046 io->minimum + io->address_length - 1, io->io_decode);
1049 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1050 struct acpi_resource *resource,
1053 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1055 if (pnp_resource_enabled(p)) {
1056 fixed_io->address = p->start;
1057 fixed_io->address_length = p->end - p->start + 1;
1059 fixed_io->address = 0;
1060 fixed_io->address_length = 0;
1063 pnp_dbg(&dev->dev, " encode fixed_io %#x-%#x\n", fixed_io->address,
1064 fixed_io->address + fixed_io->address_length - 1);
1067 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1068 struct acpi_resource *resource,
1071 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1073 if (pnp_resource_enabled(p)) {
1074 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
1075 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1076 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1077 memory24->minimum = p->start;
1078 memory24->maximum = p->end;
1079 memory24->alignment = 0;
1080 memory24->address_length = p->end - p->start + 1;
1082 memory24->minimum = 0;
1083 memory24->address_length = 0;
1086 pnp_dbg(&dev->dev, " encode mem24 %#x-%#x write_protect %#x\n",
1088 memory24->minimum + memory24->address_length - 1,
1089 memory24->write_protect);
1092 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1093 struct acpi_resource *resource,
1096 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1098 if (pnp_resource_enabled(p)) {
1099 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1100 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1101 memory32->minimum = p->start;
1102 memory32->maximum = p->end;
1103 memory32->alignment = 0;
1104 memory32->address_length = p->end - p->start + 1;
1106 memory32->minimum = 0;
1107 memory32->alignment = 0;
1110 pnp_dbg(&dev->dev, " encode mem32 %#x-%#x write_protect %#x\n",
1112 memory32->minimum + memory32->address_length - 1,
1113 memory32->write_protect);
1116 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1117 struct acpi_resource *resource,
1120 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1122 if (pnp_resource_enabled(p)) {
1123 fixed_memory32->write_protect =
1124 p->flags & IORESOURCE_MEM_WRITEABLE ?
1125 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1126 fixed_memory32->address = p->start;
1127 fixed_memory32->address_length = p->end - p->start + 1;
1129 fixed_memory32->address = 0;
1130 fixed_memory32->address_length = 0;
1133 pnp_dbg(&dev->dev, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
1134 fixed_memory32->address,
1135 fixed_memory32->address + fixed_memory32->address_length - 1,
1136 fixed_memory32->write_protect);
1139 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1142 /* pnpacpi_build_resource_template allocates extra mem */
1143 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1144 struct acpi_resource *resource = buffer->pointer;
1145 int port = 0, irq = 0, dma = 0, mem = 0;
1147 pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1148 while (i < res_cnt) {
1149 switch (resource->type) {
1150 case ACPI_RESOURCE_TYPE_IRQ:
1151 pnpacpi_encode_irq(dev, resource,
1152 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1156 case ACPI_RESOURCE_TYPE_DMA:
1157 pnpacpi_encode_dma(dev, resource,
1158 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1161 case ACPI_RESOURCE_TYPE_IO:
1162 pnpacpi_encode_io(dev, resource,
1163 pnp_get_resource(dev, IORESOURCE_IO, port));
1166 case ACPI_RESOURCE_TYPE_FIXED_IO:
1167 pnpacpi_encode_fixed_io(dev, resource,
1168 pnp_get_resource(dev, IORESOURCE_IO, port));
1171 case ACPI_RESOURCE_TYPE_MEMORY24:
1172 pnpacpi_encode_mem24(dev, resource,
1173 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1176 case ACPI_RESOURCE_TYPE_MEMORY32:
1177 pnpacpi_encode_mem32(dev, resource,
1178 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1181 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1182 pnpacpi_encode_fixed_mem32(dev, resource,
1183 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1186 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1187 pnpacpi_encode_ext_irq(dev, resource,
1188 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1191 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1192 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1193 case ACPI_RESOURCE_TYPE_VENDOR:
1194 case ACPI_RESOURCE_TYPE_END_TAG:
1195 case ACPI_RESOURCE_TYPE_ADDRESS16:
1196 case ACPI_RESOURCE_TYPE_ADDRESS32:
1197 case ACPI_RESOURCE_TYPE_ADDRESS64:
1198 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1199 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1200 default: /* other type */
1201 dev_warn(&dev->dev, "can't encode unknown resource "
1202 "type %d\n", resource->type);