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_busresource(struct pnp_dev *dev,
271 u64 end = start + len - 1;
273 pnp_add_bus_resource(dev, start, end);
276 static u64 addr_space_length(struct pnp_dev *dev, u64 min, u64 max, u64 len)
280 max_len = max - min + 1;
285 * Per 6.4.3.5, _LEN cannot exceed _MAX - _MIN + 1, but some BIOSes
286 * don't do this correctly, e.g.,
287 * https://bugzilla.kernel.org/show_bug.cgi?id=15480
290 "resource length %#llx doesn't fit in %#llx-%#llx, trimming\n",
291 (unsigned long long) len, (unsigned long long) min,
292 (unsigned long long) max);
296 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
297 struct acpi_resource *res)
299 struct acpi_resource_address64 addr, *p = &addr;
304 status = acpi_resource_to_address64(res, p);
305 if (!ACPI_SUCCESS(status)) {
306 dev_warn(&dev->dev, "failed to convert resource type %d\n",
311 len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
312 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
314 if (p->resource_type == ACPI_MEMORY_RANGE)
315 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
316 p->info.mem.write_protect, window);
317 else if (p->resource_type == ACPI_IO_RANGE)
318 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
319 p->granularity == 0xfff ? ACPI_DECODE_10 :
320 ACPI_DECODE_16, window);
321 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
322 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
325 static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
326 struct acpi_resource *res)
328 struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
332 len = addr_space_length(dev, p->minimum, p->maximum, p->address_length);
333 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
335 if (p->resource_type == ACPI_MEMORY_RANGE)
336 pnpacpi_parse_allocated_memresource(dev, p->minimum, len,
337 p->info.mem.write_protect, window);
338 else if (p->resource_type == ACPI_IO_RANGE)
339 pnpacpi_parse_allocated_ioresource(dev, p->minimum, len,
340 p->granularity == 0xfff ? ACPI_DECODE_10 :
341 ACPI_DECODE_16, window);
342 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
343 pnpacpi_parse_allocated_busresource(dev, p->minimum, len);
346 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
349 struct pnp_dev *dev = data;
350 struct acpi_resource_irq *irq;
351 struct acpi_resource_dma *dma;
352 struct acpi_resource_io *io;
353 struct acpi_resource_fixed_io *fixed_io;
354 struct acpi_resource_vendor_typed *vendor_typed;
355 struct acpi_resource_memory24 *memory24;
356 struct acpi_resource_memory32 *memory32;
357 struct acpi_resource_fixed_memory32 *fixed_memory32;
358 struct acpi_resource_extended_irq *extended_irq;
362 case ACPI_RESOURCE_TYPE_IRQ:
364 * Per spec, only one interrupt per descriptor is allowed in
365 * _CRS, but some firmware violates this, so parse them all.
367 irq = &res->data.irq;
368 if (irq->interrupt_count == 0)
369 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
371 for (i = 0; i < irq->interrupt_count; i++) {
372 pnpacpi_parse_allocated_irqresource(dev,
380 * The IRQ encoder puts a single interrupt in each
381 * descriptor, so if a _CRS descriptor has more than
382 * one interrupt, we won't be able to re-encode it.
384 if (pnp_can_write(dev) && irq->interrupt_count > 1) {
385 dev_warn(&dev->dev, "multiple interrupts in "
386 "_CRS descriptor; configuration can't "
388 dev->capabilities &= ~PNP_WRITE;
393 case ACPI_RESOURCE_TYPE_DMA:
394 dma = &res->data.dma;
395 if (dma->channel_count > 0 && dma->channels[0] != (u8) -1)
396 flags = dma_flags(dev, dma->type, dma->bus_master,
399 flags = IORESOURCE_DISABLED;
400 pnp_add_dma_resource(dev, dma->channels[0], flags);
403 case ACPI_RESOURCE_TYPE_IO:
405 pnpacpi_parse_allocated_ioresource(dev,
411 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
412 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
415 case ACPI_RESOURCE_TYPE_FIXED_IO:
416 fixed_io = &res->data.fixed_io;
417 pnpacpi_parse_allocated_ioresource(dev,
419 fixed_io->address_length,
423 case ACPI_RESOURCE_TYPE_VENDOR:
424 vendor_typed = &res->data.vendor_typed;
425 pnpacpi_parse_allocated_vendor(dev, vendor_typed);
428 case ACPI_RESOURCE_TYPE_END_TAG:
431 case ACPI_RESOURCE_TYPE_MEMORY24:
432 memory24 = &res->data.memory24;
433 pnpacpi_parse_allocated_memresource(dev,
435 memory24->address_length,
436 memory24->write_protect, 0);
438 case ACPI_RESOURCE_TYPE_MEMORY32:
439 memory32 = &res->data.memory32;
440 pnpacpi_parse_allocated_memresource(dev,
442 memory32->address_length,
443 memory32->write_protect, 0);
445 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
446 fixed_memory32 = &res->data.fixed_memory32;
447 pnpacpi_parse_allocated_memresource(dev,
448 fixed_memory32->address,
449 fixed_memory32->address_length,
450 fixed_memory32->write_protect, 0);
452 case ACPI_RESOURCE_TYPE_ADDRESS16:
453 case ACPI_RESOURCE_TYPE_ADDRESS32:
454 case ACPI_RESOURCE_TYPE_ADDRESS64:
455 pnpacpi_parse_allocated_address_space(dev, res);
458 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
459 pnpacpi_parse_allocated_ext_address_space(dev, res);
462 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
463 extended_irq = &res->data.extended_irq;
465 if (extended_irq->interrupt_count == 0)
466 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
468 for (i = 0; i < extended_irq->interrupt_count; i++) {
469 pnpacpi_parse_allocated_irqresource(dev,
470 extended_irq->interrupts[i],
471 extended_irq->triggering,
472 extended_irq->polarity,
473 extended_irq->sharable);
477 * The IRQ encoder puts a single interrupt in each
478 * descriptor, so if a _CRS descriptor has more than
479 * one interrupt, we won't be able to re-encode it.
481 if (pnp_can_write(dev) &&
482 extended_irq->interrupt_count > 1) {
483 dev_warn(&dev->dev, "multiple interrupts in "
484 "_CRS descriptor; configuration can't "
486 dev->capabilities &= ~PNP_WRITE;
491 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
495 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
503 int pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
505 struct acpi_device *acpi_dev = dev->data;
506 acpi_handle handle = acpi_dev->handle;
509 pnp_dbg(&dev->dev, "parse allocated resources\n");
511 pnp_init_resources(dev);
513 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
514 pnpacpi_allocated_resource, dev);
516 if (ACPI_FAILURE(status)) {
517 if (status != AE_NOT_FOUND)
518 dev_err(&dev->dev, "can't evaluate _CRS: %d", status);
524 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
525 unsigned int option_flags,
526 struct acpi_resource_dma *p)
529 unsigned char map = 0, flags;
531 if (p->channel_count == 0)
534 for (i = 0; i < p->channel_count; i++)
535 map |= 1 << p->channels[i];
537 flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
538 pnp_register_dma_resource(dev, option_flags, map, flags);
541 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
542 unsigned int option_flags,
543 struct acpi_resource_irq *p)
549 if (p->interrupt_count == 0)
552 bitmap_zero(map.bits, PNP_IRQ_NR);
553 for (i = 0; i < p->interrupt_count; i++)
554 if (p->interrupts[i])
555 __set_bit(p->interrupts[i], map.bits);
557 flags = irq_flags(p->triggering, p->polarity, p->sharable);
558 pnp_register_irq_resource(dev, option_flags, &map, flags);
561 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
562 unsigned int option_flags,
563 struct acpi_resource_extended_irq *p)
569 if (p->interrupt_count == 0)
572 bitmap_zero(map.bits, PNP_IRQ_NR);
573 for (i = 0; i < p->interrupt_count; i++) {
574 if (p->interrupts[i]) {
575 if (p->interrupts[i] < PNP_IRQ_NR)
576 __set_bit(p->interrupts[i], map.bits);
578 dev_err(&dev->dev, "ignoring IRQ %d option "
579 "(too large for %d entry bitmap)\n",
580 p->interrupts[i], PNP_IRQ_NR);
584 flags = irq_flags(p->triggering, p->polarity, p->sharable);
585 pnp_register_irq_resource(dev, option_flags, &map, flags);
588 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
589 unsigned int option_flags,
590 struct acpi_resource_io *io)
592 unsigned char flags = 0;
594 if (io->address_length == 0)
597 if (io->io_decode == ACPI_DECODE_16)
598 flags = IORESOURCE_IO_16BIT_ADDR;
599 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
600 io->alignment, io->address_length, flags);
603 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
604 unsigned int option_flags,
605 struct acpi_resource_fixed_io *io)
607 if (io->address_length == 0)
610 pnp_register_port_resource(dev, option_flags, io->address, io->address,
611 0, io->address_length, IORESOURCE_IO_FIXED);
614 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
615 unsigned int option_flags,
616 struct acpi_resource_memory24 *p)
618 unsigned char flags = 0;
620 if (p->address_length == 0)
623 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
624 flags = IORESOURCE_MEM_WRITEABLE;
625 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
626 p->alignment, p->address_length, flags);
629 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
630 unsigned int option_flags,
631 struct acpi_resource_memory32 *p)
633 unsigned char flags = 0;
635 if (p->address_length == 0)
638 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
639 flags = IORESOURCE_MEM_WRITEABLE;
640 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
641 p->alignment, p->address_length, flags);
644 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
645 unsigned int option_flags,
646 struct acpi_resource_fixed_memory32 *p)
648 unsigned char flags = 0;
650 if (p->address_length == 0)
653 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
654 flags = IORESOURCE_MEM_WRITEABLE;
655 pnp_register_mem_resource(dev, option_flags, p->address, p->address,
656 0, p->address_length, flags);
659 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
660 unsigned int option_flags,
661 struct acpi_resource *r)
663 struct acpi_resource_address64 addr, *p = &addr;
665 unsigned char flags = 0;
667 status = acpi_resource_to_address64(r, p);
668 if (ACPI_FAILURE(status)) {
669 dev_warn(&dev->dev, "can't convert resource type %d\n",
674 if (p->address_length == 0)
677 if (p->resource_type == ACPI_MEMORY_RANGE) {
678 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
679 flags = IORESOURCE_MEM_WRITEABLE;
680 pnp_register_mem_resource(dev, option_flags, p->minimum,
681 p->minimum, 0, p->address_length,
683 } else if (p->resource_type == ACPI_IO_RANGE)
684 pnp_register_port_resource(dev, option_flags, p->minimum,
685 p->minimum, 0, p->address_length,
686 IORESOURCE_IO_FIXED);
689 static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
690 unsigned int option_flags,
691 struct acpi_resource *r)
693 struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
694 unsigned char flags = 0;
696 if (p->address_length == 0)
699 if (p->resource_type == ACPI_MEMORY_RANGE) {
700 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
701 flags = IORESOURCE_MEM_WRITEABLE;
702 pnp_register_mem_resource(dev, option_flags, p->minimum,
703 p->minimum, 0, p->address_length,
705 } else if (p->resource_type == ACPI_IO_RANGE)
706 pnp_register_port_resource(dev, option_flags, p->minimum,
707 p->minimum, 0, p->address_length,
708 IORESOURCE_IO_FIXED);
711 struct acpipnp_parse_option_s {
713 unsigned int option_flags;
716 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
720 struct acpipnp_parse_option_s *parse_data = data;
721 struct pnp_dev *dev = parse_data->dev;
722 unsigned int option_flags = parse_data->option_flags;
725 case ACPI_RESOURCE_TYPE_IRQ:
726 pnpacpi_parse_irq_option(dev, option_flags, &res->data.irq);
729 case ACPI_RESOURCE_TYPE_DMA:
730 pnpacpi_parse_dma_option(dev, option_flags, &res->data.dma);
733 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
734 switch (res->data.start_dpf.compatibility_priority) {
735 case ACPI_GOOD_CONFIGURATION:
736 priority = PNP_RES_PRIORITY_PREFERRED;
739 case ACPI_ACCEPTABLE_CONFIGURATION:
740 priority = PNP_RES_PRIORITY_ACCEPTABLE;
743 case ACPI_SUB_OPTIMAL_CONFIGURATION:
744 priority = PNP_RES_PRIORITY_FUNCTIONAL;
747 priority = PNP_RES_PRIORITY_INVALID;
750 parse_data->option_flags = pnp_new_dependent_set(dev, priority);
753 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
754 parse_data->option_flags = 0;
757 case ACPI_RESOURCE_TYPE_IO:
758 pnpacpi_parse_port_option(dev, option_flags, &res->data.io);
761 case ACPI_RESOURCE_TYPE_FIXED_IO:
762 pnpacpi_parse_fixed_port_option(dev, option_flags,
763 &res->data.fixed_io);
766 case ACPI_RESOURCE_TYPE_VENDOR:
767 case ACPI_RESOURCE_TYPE_END_TAG:
770 case ACPI_RESOURCE_TYPE_MEMORY24:
771 pnpacpi_parse_mem24_option(dev, option_flags,
772 &res->data.memory24);
775 case ACPI_RESOURCE_TYPE_MEMORY32:
776 pnpacpi_parse_mem32_option(dev, option_flags,
777 &res->data.memory32);
780 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
781 pnpacpi_parse_fixed_mem32_option(dev, option_flags,
782 &res->data.fixed_memory32);
785 case ACPI_RESOURCE_TYPE_ADDRESS16:
786 case ACPI_RESOURCE_TYPE_ADDRESS32:
787 case ACPI_RESOURCE_TYPE_ADDRESS64:
788 pnpacpi_parse_address_option(dev, option_flags, res);
791 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
792 pnpacpi_parse_ext_address_option(dev, option_flags, res);
795 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
796 pnpacpi_parse_ext_irq_option(dev, option_flags,
797 &res->data.extended_irq);
800 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
804 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
812 int __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
814 struct acpi_device *acpi_dev = dev->data;
815 acpi_handle handle = acpi_dev->handle;
817 struct acpipnp_parse_option_s parse_data;
819 pnp_dbg(&dev->dev, "parse resource options\n");
821 parse_data.dev = dev;
822 parse_data.option_flags = 0;
824 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
825 pnpacpi_option_resource, &parse_data);
827 if (ACPI_FAILURE(status)) {
828 if (status != AE_NOT_FOUND)
829 dev_err(&dev->dev, "can't evaluate _PRS: %d", status);
835 static int pnpacpi_supported_resource(struct acpi_resource *res)
838 case ACPI_RESOURCE_TYPE_IRQ:
839 case ACPI_RESOURCE_TYPE_DMA:
840 case ACPI_RESOURCE_TYPE_IO:
841 case ACPI_RESOURCE_TYPE_FIXED_IO:
842 case ACPI_RESOURCE_TYPE_MEMORY24:
843 case ACPI_RESOURCE_TYPE_MEMORY32:
844 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
845 case ACPI_RESOURCE_TYPE_ADDRESS16:
846 case ACPI_RESOURCE_TYPE_ADDRESS32:
847 case ACPI_RESOURCE_TYPE_ADDRESS64:
848 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
849 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
858 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
863 if (pnpacpi_supported_resource(res))
868 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
870 struct acpi_resource **resource = data;
872 if (pnpacpi_supported_resource(res)) {
873 (*resource)->type = res->type;
874 (*resource)->length = sizeof(struct acpi_resource);
875 if (res->type == ACPI_RESOURCE_TYPE_IRQ)
876 (*resource)->data.irq.descriptor_length =
877 res->data.irq.descriptor_length;
884 int pnpacpi_build_resource_template(struct pnp_dev *dev,
885 struct acpi_buffer *buffer)
887 struct acpi_device *acpi_dev = dev->data;
888 acpi_handle handle = acpi_dev->handle;
889 struct acpi_resource *resource;
893 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
894 pnpacpi_count_resources, &res_cnt);
895 if (ACPI_FAILURE(status)) {
896 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
901 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
902 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
903 if (!buffer->pointer)
906 resource = (struct acpi_resource *)buffer->pointer;
907 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
908 pnpacpi_type_resources, &resource);
909 if (ACPI_FAILURE(status)) {
910 kfree(buffer->pointer);
911 dev_err(&dev->dev, "can't evaluate _CRS: %d\n", status);
914 /* resource will pointer the end resource now */
915 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
920 static void pnpacpi_encode_irq(struct pnp_dev *dev,
921 struct acpi_resource *resource,
924 struct acpi_resource_irq *irq = &resource->data.irq;
925 int triggering, polarity, shareable;
927 if (!pnp_resource_enabled(p)) {
928 irq->interrupt_count = 0;
929 pnp_dbg(&dev->dev, " encode irq (%s)\n",
930 p ? "disabled" : "missing");
934 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
935 irq->triggering = triggering;
936 irq->polarity = polarity;
937 irq->sharable = shareable;
938 irq->interrupt_count = 1;
939 irq->interrupts[0] = p->start;
941 pnp_dbg(&dev->dev, " encode irq %d %s %s %s (%d-byte descriptor)\n",
943 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
944 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
945 irq->sharable == ACPI_SHARED ? "shared" : "exclusive",
946 irq->descriptor_length);
949 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
950 struct acpi_resource *resource,
953 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
954 int triggering, polarity, shareable;
956 if (!pnp_resource_enabled(p)) {
957 extended_irq->interrupt_count = 0;
958 pnp_dbg(&dev->dev, " encode extended irq (%s)\n",
959 p ? "disabled" : "missing");
963 decode_irq_flags(dev, p->flags, &triggering, &polarity, &shareable);
964 extended_irq->producer_consumer = ACPI_CONSUMER;
965 extended_irq->triggering = triggering;
966 extended_irq->polarity = polarity;
967 extended_irq->sharable = shareable;
968 extended_irq->interrupt_count = 1;
969 extended_irq->interrupts[0] = p->start;
971 pnp_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
972 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
973 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
974 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
977 static void pnpacpi_encode_dma(struct pnp_dev *dev,
978 struct acpi_resource *resource,
981 struct acpi_resource_dma *dma = &resource->data.dma;
983 if (!pnp_resource_enabled(p)) {
984 dma->channel_count = 0;
985 pnp_dbg(&dev->dev, " encode dma (%s)\n",
986 p ? "disabled" : "missing");
990 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
991 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
992 case IORESOURCE_DMA_TYPEA:
993 dma->type = ACPI_TYPE_A;
995 case IORESOURCE_DMA_TYPEB:
996 dma->type = ACPI_TYPE_B;
998 case IORESOURCE_DMA_TYPEF:
999 dma->type = ACPI_TYPE_F;
1002 dma->type = ACPI_COMPATIBILITY;
1005 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
1006 case IORESOURCE_DMA_8BIT:
1007 dma->transfer = ACPI_TRANSFER_8;
1009 case IORESOURCE_DMA_8AND16BIT:
1010 dma->transfer = ACPI_TRANSFER_8_16;
1013 dma->transfer = ACPI_TRANSFER_16;
1016 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
1017 dma->channel_count = 1;
1018 dma->channels[0] = p->start;
1020 pnp_dbg(&dev->dev, " encode dma %d "
1021 "type %#x transfer %#x master %d\n",
1022 (int) p->start, dma->type, dma->transfer, dma->bus_master);
1025 static void pnpacpi_encode_io(struct pnp_dev *dev,
1026 struct acpi_resource *resource,
1029 struct acpi_resource_io *io = &resource->data.io;
1031 if (pnp_resource_enabled(p)) {
1032 /* Note: pnp_assign_port copies pnp_port->flags into p->flags */
1033 io->io_decode = (p->flags & IORESOURCE_IO_16BIT_ADDR) ?
1034 ACPI_DECODE_16 : ACPI_DECODE_10;
1035 io->minimum = p->start;
1036 io->maximum = p->end;
1037 io->alignment = 0; /* Correct? */
1038 io->address_length = p->end - p->start + 1;
1041 io->address_length = 0;
1044 pnp_dbg(&dev->dev, " encode io %#x-%#x decode %#x\n", io->minimum,
1045 io->minimum + io->address_length - 1, io->io_decode);
1048 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
1049 struct acpi_resource *resource,
1052 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
1054 if (pnp_resource_enabled(p)) {
1055 fixed_io->address = p->start;
1056 fixed_io->address_length = p->end - p->start + 1;
1058 fixed_io->address = 0;
1059 fixed_io->address_length = 0;
1062 pnp_dbg(&dev->dev, " encode fixed_io %#x-%#x\n", fixed_io->address,
1063 fixed_io->address + fixed_io->address_length - 1);
1066 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
1067 struct acpi_resource *resource,
1070 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
1072 if (pnp_resource_enabled(p)) {
1073 /* Note: pnp_assign_mem copies pnp_mem->flags into p->flags */
1074 memory24->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1075 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1076 memory24->minimum = p->start;
1077 memory24->maximum = p->end;
1078 memory24->alignment = 0;
1079 memory24->address_length = p->end - p->start + 1;
1081 memory24->minimum = 0;
1082 memory24->address_length = 0;
1085 pnp_dbg(&dev->dev, " encode mem24 %#x-%#x write_protect %#x\n",
1087 memory24->minimum + memory24->address_length - 1,
1088 memory24->write_protect);
1091 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
1092 struct acpi_resource *resource,
1095 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
1097 if (pnp_resource_enabled(p)) {
1098 memory32->write_protect = p->flags & IORESOURCE_MEM_WRITEABLE ?
1099 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1100 memory32->minimum = p->start;
1101 memory32->maximum = p->end;
1102 memory32->alignment = 0;
1103 memory32->address_length = p->end - p->start + 1;
1105 memory32->minimum = 0;
1106 memory32->alignment = 0;
1109 pnp_dbg(&dev->dev, " encode mem32 %#x-%#x write_protect %#x\n",
1111 memory32->minimum + memory32->address_length - 1,
1112 memory32->write_protect);
1115 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
1116 struct acpi_resource *resource,
1119 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1121 if (pnp_resource_enabled(p)) {
1122 fixed_memory32->write_protect =
1123 p->flags & IORESOURCE_MEM_WRITEABLE ?
1124 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1125 fixed_memory32->address = p->start;
1126 fixed_memory32->address_length = p->end - p->start + 1;
1128 fixed_memory32->address = 0;
1129 fixed_memory32->address_length = 0;
1132 pnp_dbg(&dev->dev, " encode fixed_mem32 %#x-%#x write_protect %#x\n",
1133 fixed_memory32->address,
1134 fixed_memory32->address + fixed_memory32->address_length - 1,
1135 fixed_memory32->write_protect);
1138 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1141 /* pnpacpi_build_resource_template allocates extra mem */
1142 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1143 struct acpi_resource *resource = buffer->pointer;
1144 int port = 0, irq = 0, dma = 0, mem = 0;
1146 pnp_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1147 while (i < res_cnt) {
1148 switch (resource->type) {
1149 case ACPI_RESOURCE_TYPE_IRQ:
1150 pnpacpi_encode_irq(dev, resource,
1151 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1155 case ACPI_RESOURCE_TYPE_DMA:
1156 pnpacpi_encode_dma(dev, resource,
1157 pnp_get_resource(dev, IORESOURCE_DMA, dma));
1160 case ACPI_RESOURCE_TYPE_IO:
1161 pnpacpi_encode_io(dev, resource,
1162 pnp_get_resource(dev, IORESOURCE_IO, port));
1165 case ACPI_RESOURCE_TYPE_FIXED_IO:
1166 pnpacpi_encode_fixed_io(dev, resource,
1167 pnp_get_resource(dev, IORESOURCE_IO, port));
1170 case ACPI_RESOURCE_TYPE_MEMORY24:
1171 pnpacpi_encode_mem24(dev, resource,
1172 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1175 case ACPI_RESOURCE_TYPE_MEMORY32:
1176 pnpacpi_encode_mem32(dev, resource,
1177 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1180 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1181 pnpacpi_encode_fixed_mem32(dev, resource,
1182 pnp_get_resource(dev, IORESOURCE_MEM, mem));
1185 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1186 pnpacpi_encode_ext_irq(dev, resource,
1187 pnp_get_resource(dev, IORESOURCE_IRQ, irq));
1190 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1191 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1192 case ACPI_RESOURCE_TYPE_VENDOR:
1193 case ACPI_RESOURCE_TYPE_END_TAG:
1194 case ACPI_RESOURCE_TYPE_ADDRESS16:
1195 case ACPI_RESOURCE_TYPE_ADDRESS32:
1196 case ACPI_RESOURCE_TYPE_ADDRESS64:
1197 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1198 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1199 default: /* other type */
1200 dev_warn(&dev->dev, "can't encode unknown resource "
1201 "type %d\n", resource->type);