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, int shareable)
39 if (triggering == ACPI_LEVEL_SENSITIVE) {
40 if (polarity == ACPI_ACTIVE_LOW)
41 flags = IORESOURCE_IRQ_LOWLEVEL;
43 flags = IORESOURCE_IRQ_HIGHLEVEL;
45 if (polarity == ACPI_ACTIVE_LOW)
46 flags = IORESOURCE_IRQ_LOWEDGE;
48 flags = IORESOURCE_IRQ_HIGHEDGE;
52 flags |= IORESOURCE_IRQ_SHAREABLE;
57 static void decode_irq_flags(int flag, int *triggering, int *polarity)
60 case IORESOURCE_IRQ_LOWLEVEL:
61 *triggering = ACPI_LEVEL_SENSITIVE;
62 *polarity = ACPI_ACTIVE_LOW;
64 case IORESOURCE_IRQ_HIGHLEVEL:
65 *triggering = ACPI_LEVEL_SENSITIVE;
66 *polarity = ACPI_ACTIVE_HIGH;
68 case IORESOURCE_IRQ_LOWEDGE:
69 *triggering = ACPI_EDGE_SENSITIVE;
70 *polarity = ACPI_ACTIVE_LOW;
72 case IORESOURCE_IRQ_HIGHEDGE:
73 *triggering = ACPI_EDGE_SENSITIVE;
74 *polarity = ACPI_ACTIVE_HIGH;
79 static void pnpacpi_parse_allocated_irqresource(struct pnp_dev *dev,
80 u32 gsi, int triggering,
81 int polarity, int shareable)
83 struct pnp_resource_table *res = &dev->res;
87 static unsigned char warned;
92 while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
95 if (i >= PNP_MAX_IRQ) {
97 printk(KERN_WARNING "pnpacpi: exceeded the max number"
98 " of IRQ resources: %d\n", PNP_MAX_IRQ);
104 * in IO-APIC mode, use overrided attribute. Two reasons:
105 * 1. BIOS bug in DSDT
106 * 2. BIOS uses IO-APIC mode Interrupt Source Override
108 if (!acpi_get_override_irq(gsi, &t, &p)) {
109 t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
110 p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
112 if (triggering != t || polarity != p) {
113 dev_warn(&dev->dev, "IRQ %d override to %s, %s\n",
114 gsi, t ? "edge":"level", p ? "low":"high");
120 res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
121 res->irq_resource[i].flags |= irq_flags(triggering, polarity, shareable);
122 irq = acpi_register_gsi(gsi, triggering, polarity);
124 res->irq_resource[i].flags |= IORESOURCE_DISABLED;
128 res->irq_resource[i].start = irq;
129 res->irq_resource[i].end = irq;
130 pcibios_penalize_isa_irq(irq, 1);
133 static int dma_flags(int type, int bus_master, int transfer)
138 flags |= IORESOURCE_DMA_MASTER;
140 case ACPI_COMPATIBILITY:
141 flags |= IORESOURCE_DMA_COMPATIBLE;
144 flags |= IORESOURCE_DMA_TYPEA;
147 flags |= IORESOURCE_DMA_TYPEB;
150 flags |= IORESOURCE_DMA_TYPEF;
153 /* Set a default value ? */
154 flags |= IORESOURCE_DMA_COMPATIBLE;
155 pnp_err("Invalid DMA type");
158 case ACPI_TRANSFER_8:
159 flags |= IORESOURCE_DMA_8BIT;
161 case ACPI_TRANSFER_8_16:
162 flags |= IORESOURCE_DMA_8AND16BIT;
164 case ACPI_TRANSFER_16:
165 flags |= IORESOURCE_DMA_16BIT;
168 /* Set a default value ? */
169 flags |= IORESOURCE_DMA_8AND16BIT;
170 pnp_err("Invalid DMA transfer type");
176 static void pnpacpi_parse_allocated_dmaresource(struct pnp_dev *dev,
179 struct pnp_resource_table *res = &dev->res;
181 static unsigned char warned;
183 while (i < PNP_MAX_DMA &&
184 !(res->dma_resource[i].flags & IORESOURCE_UNSET))
186 if (i < PNP_MAX_DMA) {
187 res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
188 res->dma_resource[i].flags |= flags;
190 res->dma_resource[i].flags |= IORESOURCE_DISABLED;
193 res->dma_resource[i].start = dma;
194 res->dma_resource[i].end = dma;
195 } else if (!warned) {
196 printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
197 "resources: %d \n", PNP_MAX_DMA);
202 static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev,
203 u64 io, u64 len, int io_decode)
205 struct pnp_resource_table *res = &dev->res;
207 static unsigned char warned;
209 while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
212 if (i < PNP_MAX_PORT) {
213 res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
214 if (io_decode == ACPI_DECODE_16)
215 res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
216 if (len <= 0 || (io + len - 1) >= 0x10003) {
217 res->port_resource[i].flags |= IORESOURCE_DISABLED;
220 res->port_resource[i].start = io;
221 res->port_resource[i].end = io + len - 1;
222 } else if (!warned) {
223 printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
224 "resources: %d \n", PNP_MAX_PORT);
229 static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
233 struct pnp_resource_table *res = &dev->res;
235 static unsigned char warned;
237 while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
240 if (i < PNP_MAX_MEM) {
241 res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
243 res->mem_resource[i].flags |= IORESOURCE_DISABLED;
246 if (write_protect == ACPI_READ_WRITE_MEMORY)
247 res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
249 res->mem_resource[i].start = mem;
250 res->mem_resource[i].end = mem + len - 1;
251 } else if (!warned) {
252 printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
253 "resources: %d\n", PNP_MAX_MEM);
258 static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
259 struct acpi_resource *res)
261 struct acpi_resource_address64 addr, *p = &addr;
264 status = acpi_resource_to_address64(res, p);
265 if (!ACPI_SUCCESS(status)) {
266 dev_warn(&dev->dev, "failed to convert resource type %d\n",
271 if (p->producer_consumer == ACPI_PRODUCER)
274 if (p->resource_type == ACPI_MEMORY_RANGE)
275 pnpacpi_parse_allocated_memresource(dev,
276 p->minimum, p->address_length,
277 p->info.mem.write_protect);
278 else if (p->resource_type == ACPI_IO_RANGE)
279 pnpacpi_parse_allocated_ioresource(dev,
280 p->minimum, p->address_length,
281 p->granularity == 0xfff ? ACPI_DECODE_10 :
285 static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
288 struct pnp_dev *dev = data;
289 struct acpi_resource_irq *irq;
290 struct acpi_resource_dma *dma;
291 struct acpi_resource_io *io;
292 struct acpi_resource_fixed_io *fixed_io;
293 struct acpi_resource_memory24 *memory24;
294 struct acpi_resource_memory32 *memory32;
295 struct acpi_resource_fixed_memory32 *fixed_memory32;
296 struct acpi_resource_extended_irq *extended_irq;
300 case ACPI_RESOURCE_TYPE_IRQ:
302 * Per spec, only one interrupt per descriptor is allowed in
303 * _CRS, but some firmware violates this, so parse them all.
305 irq = &res->data.irq;
306 for (i = 0; i < irq->interrupt_count; i++) {
307 pnpacpi_parse_allocated_irqresource(dev,
315 case ACPI_RESOURCE_TYPE_DMA:
316 dma = &res->data.dma;
317 if (dma->channel_count > 0)
318 pnpacpi_parse_allocated_dmaresource(dev,
320 dma_flags(dma->type, dma->bus_master,
324 case ACPI_RESOURCE_TYPE_IO:
326 pnpacpi_parse_allocated_ioresource(dev,
332 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
333 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
336 case ACPI_RESOURCE_TYPE_FIXED_IO:
337 fixed_io = &res->data.fixed_io;
338 pnpacpi_parse_allocated_ioresource(dev,
340 fixed_io->address_length,
344 case ACPI_RESOURCE_TYPE_VENDOR:
347 case ACPI_RESOURCE_TYPE_END_TAG:
350 case ACPI_RESOURCE_TYPE_MEMORY24:
351 memory24 = &res->data.memory24;
352 pnpacpi_parse_allocated_memresource(dev,
354 memory24->address_length,
355 memory24->write_protect);
357 case ACPI_RESOURCE_TYPE_MEMORY32:
358 memory32 = &res->data.memory32;
359 pnpacpi_parse_allocated_memresource(dev,
361 memory32->address_length,
362 memory32->write_protect);
364 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
365 fixed_memory32 = &res->data.fixed_memory32;
366 pnpacpi_parse_allocated_memresource(dev,
367 fixed_memory32->address,
368 fixed_memory32->address_length,
369 fixed_memory32->write_protect);
371 case ACPI_RESOURCE_TYPE_ADDRESS16:
372 case ACPI_RESOURCE_TYPE_ADDRESS32:
373 case ACPI_RESOURCE_TYPE_ADDRESS64:
374 pnpacpi_parse_allocated_address_space(dev, res);
377 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
378 if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
382 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
383 extended_irq = &res->data.extended_irq;
384 if (extended_irq->producer_consumer == ACPI_PRODUCER)
387 for (i = 0; i < extended_irq->interrupt_count; i++) {
388 pnpacpi_parse_allocated_irqresource(dev,
389 extended_irq->interrupts[i],
390 extended_irq->triggering,
391 extended_irq->polarity,
392 extended_irq->sharable);
396 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
400 dev_warn(&dev->dev, "unknown resource type %d in _CRS\n",
408 acpi_status pnpacpi_parse_allocated_resource(struct pnp_dev *dev)
410 acpi_handle handle = dev->data;
412 dev_dbg(&dev->dev, "parse allocated resources\n");
414 pnp_init_resources(dev);
416 return acpi_walk_resources(handle, METHOD_NAME__CRS,
417 pnpacpi_allocated_resource, dev);
420 static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
421 struct pnp_option *option,
422 struct acpi_resource_dma *p)
427 if (p->channel_count == 0)
429 dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
433 for (i = 0; i < p->channel_count; i++)
434 dma->map |= 1 << p->channels[i];
436 dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
438 pnp_register_dma_resource(dev, option, dma);
441 static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
442 struct pnp_option *option,
443 struct acpi_resource_irq *p)
448 if (p->interrupt_count == 0)
450 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
454 for (i = 0; i < p->interrupt_count; i++)
455 if (p->interrupts[i])
456 __set_bit(p->interrupts[i], irq->map);
457 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
459 pnp_register_irq_resource(dev, option, irq);
462 static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
463 struct pnp_option *option,
464 struct acpi_resource_extended_irq *p)
469 if (p->interrupt_count == 0)
471 irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
475 for (i = 0; i < p->interrupt_count; i++)
476 if (p->interrupts[i])
477 __set_bit(p->interrupts[i], irq->map);
478 irq->flags = irq_flags(p->triggering, p->polarity, p->sharable);
480 pnp_register_irq_resource(dev, option, irq);
483 static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
484 struct pnp_option *option,
485 struct acpi_resource_io *io)
487 struct pnp_port *port;
489 if (io->address_length == 0)
491 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
494 port->min = io->minimum;
495 port->max = io->maximum;
496 port->align = io->alignment;
497 port->size = io->address_length;
498 port->flags = ACPI_DECODE_16 == io->io_decode ?
499 PNP_PORT_FLAG_16BITADDR : 0;
500 pnp_register_port_resource(dev, option, port);
503 static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
504 struct pnp_option *option,
505 struct acpi_resource_fixed_io *io)
507 struct pnp_port *port;
509 if (io->address_length == 0)
511 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
514 port->min = port->max = io->address;
515 port->size = io->address_length;
517 port->flags = PNP_PORT_FLAG_FIXED;
518 pnp_register_port_resource(dev, option, port);
521 static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
522 struct pnp_option *option,
523 struct acpi_resource_memory24 *p)
527 if (p->address_length == 0)
529 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
532 mem->min = p->minimum;
533 mem->max = p->maximum;
534 mem->align = p->alignment;
535 mem->size = p->address_length;
537 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
538 IORESOURCE_MEM_WRITEABLE : 0;
540 pnp_register_mem_resource(dev, option, mem);
543 static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
544 struct pnp_option *option,
545 struct acpi_resource_memory32 *p)
549 if (p->address_length == 0)
551 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
554 mem->min = p->minimum;
555 mem->max = p->maximum;
556 mem->align = p->alignment;
557 mem->size = p->address_length;
559 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
560 IORESOURCE_MEM_WRITEABLE : 0;
562 pnp_register_mem_resource(dev, option, mem);
565 static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
566 struct pnp_option *option,
567 struct acpi_resource_fixed_memory32 *p)
571 if (p->address_length == 0)
573 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
576 mem->min = mem->max = p->address;
577 mem->size = p->address_length;
580 mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
581 IORESOURCE_MEM_WRITEABLE : 0;
583 pnp_register_mem_resource(dev, option, mem);
586 static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
587 struct pnp_option *option,
588 struct acpi_resource *r)
590 struct acpi_resource_address64 addr, *p = &addr;
593 struct pnp_port *port;
595 status = acpi_resource_to_address64(r, p);
596 if (!ACPI_SUCCESS(status)) {
597 pnp_warn("PnPACPI: failed to convert resource type %d",
602 if (p->address_length == 0)
605 if (p->resource_type == ACPI_MEMORY_RANGE) {
606 mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
609 mem->min = mem->max = p->minimum;
610 mem->size = p->address_length;
612 mem->flags = (p->info.mem.write_protect ==
613 ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
615 pnp_register_mem_resource(dev, option, mem);
616 } else if (p->resource_type == ACPI_IO_RANGE) {
617 port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
620 port->min = port->max = p->minimum;
621 port->size = p->address_length;
623 port->flags = PNP_PORT_FLAG_FIXED;
624 pnp_register_port_resource(dev, option, port);
628 struct acpipnp_parse_option_s {
629 struct pnp_option *option;
630 struct pnp_option *option_independent;
634 static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
638 struct acpipnp_parse_option_s *parse_data = data;
639 struct pnp_dev *dev = parse_data->dev;
640 struct pnp_option *option = parse_data->option;
643 case ACPI_RESOURCE_TYPE_IRQ:
644 pnpacpi_parse_irq_option(dev, option, &res->data.irq);
647 case ACPI_RESOURCE_TYPE_DMA:
648 pnpacpi_parse_dma_option(dev, option, &res->data.dma);
651 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
652 switch (res->data.start_dpf.compatibility_priority) {
653 case ACPI_GOOD_CONFIGURATION:
654 priority = PNP_RES_PRIORITY_PREFERRED;
657 case ACPI_ACCEPTABLE_CONFIGURATION:
658 priority = PNP_RES_PRIORITY_ACCEPTABLE;
661 case ACPI_SUB_OPTIMAL_CONFIGURATION:
662 priority = PNP_RES_PRIORITY_FUNCTIONAL;
665 priority = PNP_RES_PRIORITY_INVALID;
668 /* TBD: Consider performance/robustness bits */
669 option = pnp_register_dependent_option(dev, priority);
672 parse_data->option = option;
675 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
676 /*only one EndDependentFn is allowed */
677 if (!parse_data->option_independent) {
678 dev_warn(&dev->dev, "more than one EndDependentFn "
682 parse_data->option = parse_data->option_independent;
683 parse_data->option_independent = NULL;
684 dev_dbg(&dev->dev, "end dependent options\n");
687 case ACPI_RESOURCE_TYPE_IO:
688 pnpacpi_parse_port_option(dev, option, &res->data.io);
691 case ACPI_RESOURCE_TYPE_FIXED_IO:
692 pnpacpi_parse_fixed_port_option(dev, option,
693 &res->data.fixed_io);
696 case ACPI_RESOURCE_TYPE_VENDOR:
697 case ACPI_RESOURCE_TYPE_END_TAG:
700 case ACPI_RESOURCE_TYPE_MEMORY24:
701 pnpacpi_parse_mem24_option(dev, option, &res->data.memory24);
704 case ACPI_RESOURCE_TYPE_MEMORY32:
705 pnpacpi_parse_mem32_option(dev, option, &res->data.memory32);
708 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
709 pnpacpi_parse_fixed_mem32_option(dev, option,
710 &res->data.fixed_memory32);
713 case ACPI_RESOURCE_TYPE_ADDRESS16:
714 case ACPI_RESOURCE_TYPE_ADDRESS32:
715 case ACPI_RESOURCE_TYPE_ADDRESS64:
716 pnpacpi_parse_address_option(dev, option, res);
719 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
722 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
723 pnpacpi_parse_ext_irq_option(dev, option,
724 &res->data.extended_irq);
727 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
731 dev_warn(&dev->dev, "unknown resource type %d in _PRS\n",
739 acpi_status __init pnpacpi_parse_resource_option_data(struct pnp_dev *dev)
741 acpi_handle handle = dev->data;
743 struct acpipnp_parse_option_s parse_data;
745 dev_dbg(&dev->dev, "parse resource options\n");
747 parse_data.option = pnp_register_independent_option(dev);
748 if (!parse_data.option)
750 parse_data.option_independent = parse_data.option;
751 parse_data.dev = dev;
752 status = acpi_walk_resources(handle, METHOD_NAME__PRS,
753 pnpacpi_option_resource, &parse_data);
758 static int pnpacpi_supported_resource(struct acpi_resource *res)
761 case ACPI_RESOURCE_TYPE_IRQ:
762 case ACPI_RESOURCE_TYPE_DMA:
763 case ACPI_RESOURCE_TYPE_IO:
764 case ACPI_RESOURCE_TYPE_FIXED_IO:
765 case ACPI_RESOURCE_TYPE_MEMORY24:
766 case ACPI_RESOURCE_TYPE_MEMORY32:
767 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
768 case ACPI_RESOURCE_TYPE_ADDRESS16:
769 case ACPI_RESOURCE_TYPE_ADDRESS32:
770 case ACPI_RESOURCE_TYPE_ADDRESS64:
771 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
780 static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
785 if (pnpacpi_supported_resource(res))
790 static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
792 struct acpi_resource **resource = data;
794 if (pnpacpi_supported_resource(res)) {
795 (*resource)->type = res->type;
796 (*resource)->length = sizeof(struct acpi_resource);
803 int pnpacpi_build_resource_template(struct pnp_dev *dev,
804 struct acpi_buffer *buffer)
806 acpi_handle handle = dev->data;
807 struct acpi_resource *resource;
811 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
812 pnpacpi_count_resources, &res_cnt);
813 if (ACPI_FAILURE(status)) {
814 dev_err(&dev->dev, "can't evaluate _CRS\n");
819 buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
820 buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
821 if (!buffer->pointer)
824 resource = (struct acpi_resource *)buffer->pointer;
825 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
826 pnpacpi_type_resources, &resource);
827 if (ACPI_FAILURE(status)) {
828 kfree(buffer->pointer);
829 dev_err(&dev->dev, "can't evaluate _CRS\n");
832 /* resource will pointer the end resource now */
833 resource->type = ACPI_RESOURCE_TYPE_END_TAG;
838 static void pnpacpi_encode_irq(struct pnp_dev *dev,
839 struct acpi_resource *resource,
842 struct acpi_resource_irq *irq = &resource->data.irq;
843 int triggering, polarity;
845 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
846 irq->triggering = triggering;
847 irq->polarity = polarity;
848 if (triggering == ACPI_EDGE_SENSITIVE)
849 irq->sharable = ACPI_EXCLUSIVE;
851 irq->sharable = ACPI_SHARED;
852 irq->interrupt_count = 1;
853 irq->interrupts[0] = p->start;
855 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
856 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
857 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
858 irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
861 static void pnpacpi_encode_ext_irq(struct pnp_dev *dev,
862 struct acpi_resource *resource,
865 struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
866 int triggering, polarity;
868 decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
869 extended_irq->producer_consumer = ACPI_CONSUMER;
870 extended_irq->triggering = triggering;
871 extended_irq->polarity = polarity;
872 if (triggering == ACPI_EDGE_SENSITIVE)
873 extended_irq->sharable = ACPI_EXCLUSIVE;
875 extended_irq->sharable = ACPI_SHARED;
876 extended_irq->interrupt_count = 1;
877 extended_irq->interrupts[0] = p->start;
879 dev_dbg(&dev->dev, " encode irq %d %s %s %s\n", (int) p->start,
880 triggering == ACPI_LEVEL_SENSITIVE ? "level" : "edge",
881 polarity == ACPI_ACTIVE_LOW ? "low" : "high",
882 extended_irq->sharable == ACPI_SHARED ? "shared" : "exclusive");
885 static void pnpacpi_encode_dma(struct pnp_dev *dev,
886 struct acpi_resource *resource,
889 struct acpi_resource_dma *dma = &resource->data.dma;
891 /* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
892 switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
893 case IORESOURCE_DMA_TYPEA:
894 dma->type = ACPI_TYPE_A;
896 case IORESOURCE_DMA_TYPEB:
897 dma->type = ACPI_TYPE_B;
899 case IORESOURCE_DMA_TYPEF:
900 dma->type = ACPI_TYPE_F;
903 dma->type = ACPI_COMPATIBILITY;
906 switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
907 case IORESOURCE_DMA_8BIT:
908 dma->transfer = ACPI_TRANSFER_8;
910 case IORESOURCE_DMA_8AND16BIT:
911 dma->transfer = ACPI_TRANSFER_8_16;
914 dma->transfer = ACPI_TRANSFER_16;
917 dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
918 dma->channel_count = 1;
919 dma->channels[0] = p->start;
921 dev_dbg(&dev->dev, " encode dma %d "
922 "type %#x transfer %#x master %d\n",
923 (int) p->start, dma->type, dma->transfer, dma->bus_master);
926 static void pnpacpi_encode_io(struct pnp_dev *dev,
927 struct acpi_resource *resource,
930 struct acpi_resource_io *io = &resource->data.io;
932 /* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
933 io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
934 ACPI_DECODE_16 : ACPI_DECODE_10;
935 io->minimum = p->start;
936 io->maximum = p->end;
937 io->alignment = 0; /* Correct? */
938 io->address_length = p->end - p->start + 1;
940 dev_dbg(&dev->dev, " encode io %#llx-%#llx decode %#x\n",
941 (unsigned long long) p->start, (unsigned long long) p->end,
945 static void pnpacpi_encode_fixed_io(struct pnp_dev *dev,
946 struct acpi_resource *resource,
949 struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
951 fixed_io->address = p->start;
952 fixed_io->address_length = p->end - p->start + 1;
954 dev_dbg(&dev->dev, " encode fixed_io %#llx-%#llx\n",
955 (unsigned long long) p->start, (unsigned long long) p->end);
958 static void pnpacpi_encode_mem24(struct pnp_dev *dev,
959 struct acpi_resource *resource,
962 struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
964 /* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
965 memory24->write_protect =
966 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
967 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
968 memory24->minimum = p->start;
969 memory24->maximum = p->end;
970 memory24->alignment = 0;
971 memory24->address_length = p->end - p->start + 1;
973 dev_dbg(&dev->dev, " encode mem24 %#llx-%#llx write_protect %#x\n",
974 (unsigned long long) p->start, (unsigned long long) p->end,
975 memory24->write_protect);
978 static void pnpacpi_encode_mem32(struct pnp_dev *dev,
979 struct acpi_resource *resource,
982 struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
984 memory32->write_protect =
985 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
986 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
987 memory32->minimum = p->start;
988 memory32->maximum = p->end;
989 memory32->alignment = 0;
990 memory32->address_length = p->end - p->start + 1;
992 dev_dbg(&dev->dev, " encode mem32 %#llx-%#llx write_protect %#x\n",
993 (unsigned long long) p->start, (unsigned long long) p->end,
994 memory32->write_protect);
997 static void pnpacpi_encode_fixed_mem32(struct pnp_dev *dev,
998 struct acpi_resource *resource,
1001 struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
1003 fixed_memory32->write_protect =
1004 (p->flags & IORESOURCE_MEM_WRITEABLE) ?
1005 ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
1006 fixed_memory32->address = p->start;
1007 fixed_memory32->address_length = p->end - p->start + 1;
1009 dev_dbg(&dev->dev, " encode fixed_mem32 %#llx-%#llx "
1010 "write_protect %#x\n",
1011 (unsigned long long) p->start, (unsigned long long) p->end,
1012 fixed_memory32->write_protect);
1015 int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
1017 struct pnp_resource_table *res_table = &dev->res;
1019 /* pnpacpi_build_resource_template allocates extra mem */
1020 int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
1021 struct acpi_resource *resource = buffer->pointer;
1022 int port = 0, irq = 0, dma = 0, mem = 0;
1024 dev_dbg(&dev->dev, "encode %d resources\n", res_cnt);
1025 while (i < res_cnt) {
1026 switch (resource->type) {
1027 case ACPI_RESOURCE_TYPE_IRQ:
1028 pnpacpi_encode_irq(dev, resource,
1029 &res_table->irq_resource[irq]);
1033 case ACPI_RESOURCE_TYPE_DMA:
1034 pnpacpi_encode_dma(dev, resource,
1035 &res_table->dma_resource[dma]);
1038 case ACPI_RESOURCE_TYPE_IO:
1039 pnpacpi_encode_io(dev, resource,
1040 &res_table->port_resource[port]);
1043 case ACPI_RESOURCE_TYPE_FIXED_IO:
1044 pnpacpi_encode_fixed_io(dev, resource,
1046 port_resource[port]);
1049 case ACPI_RESOURCE_TYPE_MEMORY24:
1050 pnpacpi_encode_mem24(dev, resource,
1051 &res_table->mem_resource[mem]);
1054 case ACPI_RESOURCE_TYPE_MEMORY32:
1055 pnpacpi_encode_mem32(dev, resource,
1056 &res_table->mem_resource[mem]);
1059 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
1060 pnpacpi_encode_fixed_mem32(dev, resource,
1065 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
1066 pnpacpi_encode_ext_irq(dev, resource,
1067 &res_table->irq_resource[irq]);
1070 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1071 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1072 case ACPI_RESOURCE_TYPE_VENDOR:
1073 case ACPI_RESOURCE_TYPE_END_TAG:
1074 case ACPI_RESOURCE_TYPE_ADDRESS16:
1075 case ACPI_RESOURCE_TYPE_ADDRESS32:
1076 case ACPI_RESOURCE_TYPE_ADDRESS64:
1077 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
1078 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
1079 default: /* other type */
1080 dev_warn(&dev->dev, "can't encode unknown resource "
1081 "type %d\n", resource->type);