![Bjorn Helgaas](/assets/img/avatar_default.png)
Hoist dma_flags() out of pnpacpi_parse_allocated_dmaresource() into its caller. This makes pnpacpi_parse_allocated_dmaresource() more similar to pnpbios_parse_allocated_dmaresource(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
1026 lines
26 KiB
C
1026 lines
26 KiB
C
/*
|
|
* pnpacpi -- PnP ACPI driver
|
|
*
|
|
* Copyright (c) 2004 Matthieu Castet <castet.matthieu@free.fr>
|
|
* Copyright (c) 2004 Li Shaohua <shaohua.li@intel.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2, or (at your option) any
|
|
* later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/acpi.h>
|
|
#include <linux/pci.h>
|
|
#include "pnpacpi.h"
|
|
|
|
#ifdef CONFIG_IA64
|
|
#define valid_IRQ(i) (1)
|
|
#else
|
|
#define valid_IRQ(i) (((i) != 0) && ((i) != 2))
|
|
#endif
|
|
|
|
/*
|
|
* Allocated Resources
|
|
*/
|
|
static int irq_flags(int triggering, int polarity)
|
|
{
|
|
if (triggering == ACPI_LEVEL_SENSITIVE) {
|
|
if (polarity == ACPI_ACTIVE_LOW)
|
|
return IORESOURCE_IRQ_LOWLEVEL;
|
|
else
|
|
return IORESOURCE_IRQ_HIGHLEVEL;
|
|
} else {
|
|
if (polarity == ACPI_ACTIVE_LOW)
|
|
return IORESOURCE_IRQ_LOWEDGE;
|
|
else
|
|
return IORESOURCE_IRQ_HIGHEDGE;
|
|
}
|
|
}
|
|
|
|
static void decode_irq_flags(int flag, int *triggering, int *polarity)
|
|
{
|
|
switch (flag) {
|
|
case IORESOURCE_IRQ_LOWLEVEL:
|
|
*triggering = ACPI_LEVEL_SENSITIVE;
|
|
*polarity = ACPI_ACTIVE_LOW;
|
|
break;
|
|
case IORESOURCE_IRQ_HIGHLEVEL:
|
|
*triggering = ACPI_LEVEL_SENSITIVE;
|
|
*polarity = ACPI_ACTIVE_HIGH;
|
|
break;
|
|
case IORESOURCE_IRQ_LOWEDGE:
|
|
*triggering = ACPI_EDGE_SENSITIVE;
|
|
*polarity = ACPI_ACTIVE_LOW;
|
|
break;
|
|
case IORESOURCE_IRQ_HIGHEDGE:
|
|
*triggering = ACPI_EDGE_SENSITIVE;
|
|
*polarity = ACPI_ACTIVE_HIGH;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
|
|
u32 gsi, int triggering,
|
|
int polarity, int shareable)
|
|
{
|
|
int i = 0;
|
|
int irq;
|
|
int p, t;
|
|
static unsigned char warned;
|
|
|
|
if (!valid_IRQ(gsi))
|
|
return;
|
|
|
|
while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
|
|
i < PNP_MAX_IRQ)
|
|
i++;
|
|
if (i >= PNP_MAX_IRQ) {
|
|
if (!warned) {
|
|
printk(KERN_WARNING "pnpacpi: exceeded the max number"
|
|
" of IRQ resources: %d\n", PNP_MAX_IRQ);
|
|
warned = 1;
|
|
}
|
|
return;
|
|
}
|
|
/*
|
|
* in IO-APIC mode, use overrided attribute. Two reasons:
|
|
* 1. BIOS bug in DSDT
|
|
* 2. BIOS uses IO-APIC mode Interrupt Source Override
|
|
*/
|
|
if (!acpi_get_override_irq(gsi, &t, &p)) {
|
|
t = t ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
|
|
p = p ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
|
|
|
|
if (triggering != t || polarity != p) {
|
|
pnp_warn("IRQ %d override to %s, %s",
|
|
gsi, t ? "edge":"level", p ? "low":"high");
|
|
triggering = t;
|
|
polarity = p;
|
|
}
|
|
}
|
|
|
|
res->irq_resource[i].flags = IORESOURCE_IRQ; // Also clears _UNSET flag
|
|
res->irq_resource[i].flags |= irq_flags(triggering, polarity);
|
|
irq = acpi_register_gsi(gsi, triggering, polarity);
|
|
if (irq < 0) {
|
|
res->irq_resource[i].flags |= IORESOURCE_DISABLED;
|
|
return;
|
|
}
|
|
|
|
if (shareable)
|
|
res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
|
|
|
|
res->irq_resource[i].start = irq;
|
|
res->irq_resource[i].end = irq;
|
|
pcibios_penalize_isa_irq(irq, 1);
|
|
}
|
|
|
|
static int dma_flags(int type, int bus_master, int transfer)
|
|
{
|
|
int flags = 0;
|
|
|
|
if (bus_master)
|
|
flags |= IORESOURCE_DMA_MASTER;
|
|
switch (type) {
|
|
case ACPI_COMPATIBILITY:
|
|
flags |= IORESOURCE_DMA_COMPATIBLE;
|
|
break;
|
|
case ACPI_TYPE_A:
|
|
flags |= IORESOURCE_DMA_TYPEA;
|
|
break;
|
|
case ACPI_TYPE_B:
|
|
flags |= IORESOURCE_DMA_TYPEB;
|
|
break;
|
|
case ACPI_TYPE_F:
|
|
flags |= IORESOURCE_DMA_TYPEF;
|
|
break;
|
|
default:
|
|
/* Set a default value ? */
|
|
flags |= IORESOURCE_DMA_COMPATIBLE;
|
|
pnp_err("Invalid DMA type");
|
|
}
|
|
switch (transfer) {
|
|
case ACPI_TRANSFER_8:
|
|
flags |= IORESOURCE_DMA_8BIT;
|
|
break;
|
|
case ACPI_TRANSFER_8_16:
|
|
flags |= IORESOURCE_DMA_8AND16BIT;
|
|
break;
|
|
case ACPI_TRANSFER_16:
|
|
flags |= IORESOURCE_DMA_16BIT;
|
|
break;
|
|
default:
|
|
/* Set a default value ? */
|
|
flags |= IORESOURCE_DMA_8AND16BIT;
|
|
pnp_err("Invalid DMA transfer type");
|
|
}
|
|
|
|
return flags;
|
|
}
|
|
|
|
static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
|
|
u32 dma, int flags)
|
|
{
|
|
int i = 0;
|
|
static unsigned char warned;
|
|
|
|
while (i < PNP_MAX_DMA &&
|
|
!(res->dma_resource[i].flags & IORESOURCE_UNSET))
|
|
i++;
|
|
if (i < PNP_MAX_DMA) {
|
|
res->dma_resource[i].flags = IORESOURCE_DMA; // Also clears _UNSET flag
|
|
res->dma_resource[i].flags |= flags;
|
|
if (dma == -1) {
|
|
res->dma_resource[i].flags |= IORESOURCE_DISABLED;
|
|
return;
|
|
}
|
|
res->dma_resource[i].start = dma;
|
|
res->dma_resource[i].end = dma;
|
|
} else if (!warned) {
|
|
printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
|
|
"resources: %d \n", PNP_MAX_DMA);
|
|
warned = 1;
|
|
}
|
|
}
|
|
|
|
static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
|
|
u64 io, u64 len, int io_decode)
|
|
{
|
|
int i = 0;
|
|
static unsigned char warned;
|
|
|
|
while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
|
|
i < PNP_MAX_PORT)
|
|
i++;
|
|
if (i < PNP_MAX_PORT) {
|
|
res->port_resource[i].flags = IORESOURCE_IO; // Also clears _UNSET flag
|
|
if (io_decode == ACPI_DECODE_16)
|
|
res->port_resource[i].flags |= PNP_PORT_FLAG_16BITADDR;
|
|
if (len <= 0 || (io + len - 1) >= 0x10003) {
|
|
res->port_resource[i].flags |= IORESOURCE_DISABLED;
|
|
return;
|
|
}
|
|
res->port_resource[i].start = io;
|
|
res->port_resource[i].end = io + len - 1;
|
|
} else if (!warned) {
|
|
printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
|
|
"resources: %d \n", PNP_MAX_PORT);
|
|
warned = 1;
|
|
}
|
|
}
|
|
|
|
static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
|
|
u64 mem, u64 len,
|
|
int write_protect)
|
|
{
|
|
int i = 0;
|
|
static unsigned char warned;
|
|
|
|
while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
|
|
(i < PNP_MAX_MEM))
|
|
i++;
|
|
if (i < PNP_MAX_MEM) {
|
|
res->mem_resource[i].flags = IORESOURCE_MEM; // Also clears _UNSET flag
|
|
if (len <= 0) {
|
|
res->mem_resource[i].flags |= IORESOURCE_DISABLED;
|
|
return;
|
|
}
|
|
if (write_protect == ACPI_READ_WRITE_MEMORY)
|
|
res->mem_resource[i].flags |= IORESOURCE_MEM_WRITEABLE;
|
|
|
|
res->mem_resource[i].start = mem;
|
|
res->mem_resource[i].end = mem + len - 1;
|
|
} else if (!warned) {
|
|
printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
|
|
"resources: %d\n", PNP_MAX_MEM);
|
|
warned = 1;
|
|
}
|
|
}
|
|
|
|
static void pnpacpi_parse_allocated_address_space(struct pnp_resource_table *res_table,
|
|
struct acpi_resource *res)
|
|
{
|
|
struct acpi_resource_address64 addr, *p = &addr;
|
|
acpi_status status;
|
|
|
|
status = acpi_resource_to_address64(res, p);
|
|
if (!ACPI_SUCCESS(status)) {
|
|
pnp_warn("PnPACPI: failed to convert resource type %d",
|
|
res->type);
|
|
return;
|
|
}
|
|
|
|
if (p->producer_consumer == ACPI_PRODUCER)
|
|
return;
|
|
|
|
if (p->resource_type == ACPI_MEMORY_RANGE)
|
|
pnpacpi_parse_allocated_memresource(res_table,
|
|
p->minimum, p->address_length,
|
|
p->info.mem.write_protect);
|
|
else if (p->resource_type == ACPI_IO_RANGE)
|
|
pnpacpi_parse_allocated_ioresource(res_table,
|
|
p->minimum, p->address_length,
|
|
p->granularity == 0xfff ? ACPI_DECODE_10 :
|
|
ACPI_DECODE_16);
|
|
}
|
|
|
|
static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
struct pnp_resource_table *res_table = data;
|
|
struct acpi_resource_irq *irq;
|
|
struct acpi_resource_dma *dma;
|
|
struct acpi_resource_io *io;
|
|
struct acpi_resource_fixed_io *fixed_io;
|
|
struct acpi_resource_memory24 *memory24;
|
|
struct acpi_resource_memory32 *memory32;
|
|
struct acpi_resource_fixed_memory32 *fixed_memory32;
|
|
struct acpi_resource_extended_irq *extended_irq;
|
|
int i;
|
|
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
/*
|
|
* Per spec, only one interrupt per descriptor is allowed in
|
|
* _CRS, but some firmware violates this, so parse them all.
|
|
*/
|
|
irq = &res->data.irq;
|
|
for (i = 0; i < irq->interrupt_count; i++) {
|
|
pnpacpi_parse_allocated_irqresource(res_table,
|
|
irq->interrupts[i],
|
|
irq->triggering,
|
|
irq->polarity,
|
|
irq->sharable);
|
|
}
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
dma = &res->data.dma;
|
|
if (dma->channel_count > 0)
|
|
pnpacpi_parse_allocated_dmaresource(res_table,
|
|
dma->channels[0],
|
|
dma_flags(dma->type, dma->bus_master,
|
|
dma->transfer));
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
io = &res->data.io;
|
|
pnpacpi_parse_allocated_ioresource(res_table,
|
|
io->minimum,
|
|
io->address_length,
|
|
io->io_decode);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
fixed_io = &res->data.fixed_io;
|
|
pnpacpi_parse_allocated_ioresource(res_table,
|
|
fixed_io->address,
|
|
fixed_io->address_length,
|
|
ACPI_DECODE_10);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_VENDOR:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_END_TAG:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
memory24 = &res->data.memory24;
|
|
pnpacpi_parse_allocated_memresource(res_table,
|
|
memory24->minimum,
|
|
memory24->address_length,
|
|
memory24->write_protect);
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
memory32 = &res->data.memory32;
|
|
pnpacpi_parse_allocated_memresource(res_table,
|
|
memory32->minimum,
|
|
memory32->address_length,
|
|
memory32->write_protect);
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
fixed_memory32 = &res->data.fixed_memory32;
|
|
pnpacpi_parse_allocated_memresource(res_table,
|
|
fixed_memory32->address,
|
|
fixed_memory32->address_length,
|
|
fixed_memory32->write_protect);
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
pnpacpi_parse_allocated_address_space(res_table, res);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
if (res->data.ext_address64.producer_consumer == ACPI_PRODUCER)
|
|
return AE_OK;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
extended_irq = &res->data.extended_irq;
|
|
if (extended_irq->producer_consumer == ACPI_PRODUCER)
|
|
return AE_OK;
|
|
|
|
for (i = 0; i < extended_irq->interrupt_count; i++) {
|
|
pnpacpi_parse_allocated_irqresource(res_table,
|
|
extended_irq->interrupts[i],
|
|
extended_irq->triggering,
|
|
extended_irq->polarity,
|
|
extended_irq->sharable);
|
|
}
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
break;
|
|
|
|
default:
|
|
pnp_warn("PnPACPI: unknown resource type %d", res->type);
|
|
return AE_ERROR;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
acpi_status pnpacpi_parse_allocated_resource(acpi_handle handle,
|
|
struct pnp_resource_table * res)
|
|
{
|
|
/* Blank the resource table values */
|
|
pnp_init_resource_table(res);
|
|
|
|
return acpi_walk_resources(handle, METHOD_NAME__CRS,
|
|
pnpacpi_allocated_resource, res);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_dma_option(struct pnp_option *option,
|
|
struct acpi_resource_dma *p)
|
|
{
|
|
int i;
|
|
struct pnp_dma *dma;
|
|
|
|
if (p->channel_count == 0)
|
|
return;
|
|
dma = kzalloc(sizeof(struct pnp_dma), GFP_KERNEL);
|
|
if (!dma)
|
|
return;
|
|
|
|
for (i = 0; i < p->channel_count; i++)
|
|
dma->map |= 1 << p->channels[i];
|
|
|
|
dma->flags = dma_flags(p->type, p->bus_master, p->transfer);
|
|
|
|
pnp_register_dma_resource(option, dma);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_irq_option(struct pnp_option *option,
|
|
struct acpi_resource_irq *p)
|
|
{
|
|
int i;
|
|
struct pnp_irq *irq;
|
|
|
|
if (p->interrupt_count == 0)
|
|
return;
|
|
irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
|
|
if (!irq)
|
|
return;
|
|
|
|
for (i = 0; i < p->interrupt_count; i++)
|
|
if (p->interrupts[i])
|
|
__set_bit(p->interrupts[i], irq->map);
|
|
irq->flags = irq_flags(p->triggering, p->polarity);
|
|
|
|
pnp_register_irq_resource(option, irq);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_ext_irq_option(struct pnp_option *option,
|
|
struct acpi_resource_extended_irq *p)
|
|
{
|
|
int i;
|
|
struct pnp_irq *irq;
|
|
|
|
if (p->interrupt_count == 0)
|
|
return;
|
|
irq = kzalloc(sizeof(struct pnp_irq), GFP_KERNEL);
|
|
if (!irq)
|
|
return;
|
|
|
|
for (i = 0; i < p->interrupt_count; i++)
|
|
if (p->interrupts[i])
|
|
__set_bit(p->interrupts[i], irq->map);
|
|
irq->flags = irq_flags(p->triggering, p->polarity);
|
|
|
|
pnp_register_irq_resource(option, irq);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_port_option(struct pnp_option *option,
|
|
struct acpi_resource_io *io)
|
|
{
|
|
struct pnp_port *port;
|
|
|
|
if (io->address_length == 0)
|
|
return;
|
|
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
|
|
if (!port)
|
|
return;
|
|
port->min = io->minimum;
|
|
port->max = io->maximum;
|
|
port->align = io->alignment;
|
|
port->size = io->address_length;
|
|
port->flags = ACPI_DECODE_16 == io->io_decode ?
|
|
PNP_PORT_FLAG_16BITADDR : 0;
|
|
pnp_register_port_resource(option, port);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_fixed_port_option(struct pnp_option *option,
|
|
struct acpi_resource_fixed_io *io)
|
|
{
|
|
struct pnp_port *port;
|
|
|
|
if (io->address_length == 0)
|
|
return;
|
|
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
|
|
if (!port)
|
|
return;
|
|
port->min = port->max = io->address;
|
|
port->size = io->address_length;
|
|
port->align = 0;
|
|
port->flags = PNP_PORT_FLAG_FIXED;
|
|
pnp_register_port_resource(option, port);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_mem24_option(struct pnp_option *option,
|
|
struct acpi_resource_memory24 *p)
|
|
{
|
|
struct pnp_mem *mem;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = p->minimum;
|
|
mem->max = p->maximum;
|
|
mem->align = p->alignment;
|
|
mem->size = p->address_length;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_mem32_option(struct pnp_option *option,
|
|
struct acpi_resource_memory32 *p)
|
|
{
|
|
struct pnp_mem *mem;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = p->minimum;
|
|
mem->max = p->maximum;
|
|
mem->align = p->alignment;
|
|
mem->size = p->address_length;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_option *option,
|
|
struct acpi_resource_fixed_memory32 *p)
|
|
{
|
|
struct pnp_mem *mem;
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = mem->max = p->address;
|
|
mem->size = p->address_length;
|
|
mem->align = 0;
|
|
|
|
mem->flags = (ACPI_READ_WRITE_MEMORY == p->write_protect) ?
|
|
IORESOURCE_MEM_WRITEABLE : 0;
|
|
|
|
pnp_register_mem_resource(option, mem);
|
|
}
|
|
|
|
static __init void pnpacpi_parse_address_option(struct pnp_option *option,
|
|
struct acpi_resource *r)
|
|
{
|
|
struct acpi_resource_address64 addr, *p = &addr;
|
|
acpi_status status;
|
|
struct pnp_mem *mem;
|
|
struct pnp_port *port;
|
|
|
|
status = acpi_resource_to_address64(r, p);
|
|
if (!ACPI_SUCCESS(status)) {
|
|
pnp_warn("PnPACPI: failed to convert resource type %d",
|
|
r->type);
|
|
return;
|
|
}
|
|
|
|
if (p->address_length == 0)
|
|
return;
|
|
|
|
if (p->resource_type == ACPI_MEMORY_RANGE) {
|
|
mem = kzalloc(sizeof(struct pnp_mem), GFP_KERNEL);
|
|
if (!mem)
|
|
return;
|
|
mem->min = mem->max = p->minimum;
|
|
mem->size = p->address_length;
|
|
mem->align = 0;
|
|
mem->flags = (p->info.mem.write_protect ==
|
|
ACPI_READ_WRITE_MEMORY) ? IORESOURCE_MEM_WRITEABLE
|
|
: 0;
|
|
pnp_register_mem_resource(option, mem);
|
|
} else if (p->resource_type == ACPI_IO_RANGE) {
|
|
port = kzalloc(sizeof(struct pnp_port), GFP_KERNEL);
|
|
if (!port)
|
|
return;
|
|
port->min = port->max = p->minimum;
|
|
port->size = p->address_length;
|
|
port->align = 0;
|
|
port->flags = PNP_PORT_FLAG_FIXED;
|
|
pnp_register_port_resource(option, port);
|
|
}
|
|
}
|
|
|
|
struct acpipnp_parse_option_s {
|
|
struct pnp_option *option;
|
|
struct pnp_option *option_independent;
|
|
struct pnp_dev *dev;
|
|
};
|
|
|
|
static __init acpi_status pnpacpi_option_resource(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
int priority = 0;
|
|
struct acpipnp_parse_option_s *parse_data = data;
|
|
struct pnp_dev *dev = parse_data->dev;
|
|
struct pnp_option *option = parse_data->option;
|
|
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnpacpi_parse_irq_option(option, &res->data.irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnpacpi_parse_dma_option(option, &res->data.dma);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
|
|
switch (res->data.start_dpf.compatibility_priority) {
|
|
case ACPI_GOOD_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_PREFERRED;
|
|
break;
|
|
|
|
case ACPI_ACCEPTABLE_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_ACCEPTABLE;
|
|
break;
|
|
|
|
case ACPI_SUB_OPTIMAL_CONFIGURATION:
|
|
priority = PNP_RES_PRIORITY_FUNCTIONAL;
|
|
break;
|
|
default:
|
|
priority = PNP_RES_PRIORITY_INVALID;
|
|
break;
|
|
}
|
|
/* TBD: Consider performance/robustness bits */
|
|
option = pnp_register_dependent_option(dev, priority);
|
|
if (!option)
|
|
return AE_ERROR;
|
|
parse_data->option = option;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
/*only one EndDependentFn is allowed */
|
|
if (!parse_data->option_independent) {
|
|
pnp_warn("PnPACPI: more than one EndDependentFn");
|
|
return AE_ERROR;
|
|
}
|
|
parse_data->option = parse_data->option_independent;
|
|
parse_data->option_independent = NULL;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnpacpi_parse_port_option(option, &res->data.io);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnpacpi_parse_fixed_port_option(option, &res->data.fixed_io);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_VENDOR:
|
|
case ACPI_RESOURCE_TYPE_END_TAG:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
pnpacpi_parse_mem24_option(option, &res->data.memory24);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnpacpi_parse_mem32_option(option, &res->data.memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnpacpi_parse_fixed_mem32_option(option,
|
|
&res->data.fixed_memory32);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
pnpacpi_parse_address_option(option, res);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnpacpi_parse_ext_irq_option(option, &res->data.extended_irq);
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
break;
|
|
|
|
default:
|
|
pnp_warn("PnPACPI: unknown resource type %d", res->type);
|
|
return AE_ERROR;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
acpi_status __init pnpacpi_parse_resource_option_data(acpi_handle handle,
|
|
struct pnp_dev *dev)
|
|
{
|
|
acpi_status status;
|
|
struct acpipnp_parse_option_s parse_data;
|
|
|
|
parse_data.option = pnp_register_independent_option(dev);
|
|
if (!parse_data.option)
|
|
return AE_ERROR;
|
|
parse_data.option_independent = parse_data.option;
|
|
parse_data.dev = dev;
|
|
status = acpi_walk_resources(handle, METHOD_NAME__PRS,
|
|
pnpacpi_option_resource, &parse_data);
|
|
|
|
return status;
|
|
}
|
|
|
|
static int pnpacpi_supported_resource(struct acpi_resource *res)
|
|
{
|
|
switch (res->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Set resource
|
|
*/
|
|
static acpi_status pnpacpi_count_resources(struct acpi_resource *res,
|
|
void *data)
|
|
{
|
|
int *res_cnt = data;
|
|
|
|
if (pnpacpi_supported_resource(res))
|
|
(*res_cnt)++;
|
|
return AE_OK;
|
|
}
|
|
|
|
static acpi_status pnpacpi_type_resources(struct acpi_resource *res, void *data)
|
|
{
|
|
struct acpi_resource **resource = data;
|
|
|
|
if (pnpacpi_supported_resource(res)) {
|
|
(*resource)->type = res->type;
|
|
(*resource)->length = sizeof(struct acpi_resource);
|
|
(*resource)++;
|
|
}
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
int pnpacpi_build_resource_template(acpi_handle handle,
|
|
struct acpi_buffer *buffer)
|
|
{
|
|
struct acpi_resource *resource;
|
|
int res_cnt = 0;
|
|
acpi_status status;
|
|
|
|
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
|
|
pnpacpi_count_resources, &res_cnt);
|
|
if (ACPI_FAILURE(status)) {
|
|
pnp_err("Evaluate _CRS failed");
|
|
return -EINVAL;
|
|
}
|
|
if (!res_cnt)
|
|
return -EINVAL;
|
|
buffer->length = sizeof(struct acpi_resource) * (res_cnt + 1) + 1;
|
|
buffer->pointer = kzalloc(buffer->length - 1, GFP_KERNEL);
|
|
if (!buffer->pointer)
|
|
return -ENOMEM;
|
|
pnp_dbg("Res cnt %d", res_cnt);
|
|
resource = (struct acpi_resource *)buffer->pointer;
|
|
status = acpi_walk_resources(handle, METHOD_NAME__CRS,
|
|
pnpacpi_type_resources, &resource);
|
|
if (ACPI_FAILURE(status)) {
|
|
kfree(buffer->pointer);
|
|
pnp_err("Evaluate _CRS failed");
|
|
return -EINVAL;
|
|
}
|
|
/* resource will pointer the end resource now */
|
|
resource->type = ACPI_RESOURCE_TYPE_END_TAG;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void pnpacpi_encode_irq(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_irq *irq = &resource->data.irq;
|
|
int triggering, polarity;
|
|
|
|
decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
|
|
irq->triggering = triggering;
|
|
irq->polarity = polarity;
|
|
if (triggering == ACPI_EDGE_SENSITIVE)
|
|
irq->sharable = ACPI_EXCLUSIVE;
|
|
else
|
|
irq->sharable = ACPI_SHARED;
|
|
irq->interrupt_count = 1;
|
|
irq->interrupts[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_ext_irq(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_extended_irq *extended_irq = &resource->data.extended_irq;
|
|
int triggering, polarity;
|
|
|
|
decode_irq_flags(p->flags & IORESOURCE_BITS, &triggering, &polarity);
|
|
extended_irq->producer_consumer = ACPI_CONSUMER;
|
|
extended_irq->triggering = triggering;
|
|
extended_irq->polarity = polarity;
|
|
if (triggering == ACPI_EDGE_SENSITIVE)
|
|
extended_irq->sharable = ACPI_EXCLUSIVE;
|
|
else
|
|
extended_irq->sharable = ACPI_SHARED;
|
|
extended_irq->interrupt_count = 1;
|
|
extended_irq->interrupts[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_dma(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_dma *dma = &resource->data.dma;
|
|
|
|
/* Note: pnp_assign_dma will copy pnp_dma->flags into p->flags */
|
|
switch (p->flags & IORESOURCE_DMA_SPEED_MASK) {
|
|
case IORESOURCE_DMA_TYPEA:
|
|
dma->type = ACPI_TYPE_A;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEB:
|
|
dma->type = ACPI_TYPE_B;
|
|
break;
|
|
case IORESOURCE_DMA_TYPEF:
|
|
dma->type = ACPI_TYPE_F;
|
|
break;
|
|
default:
|
|
dma->type = ACPI_COMPATIBILITY;
|
|
}
|
|
|
|
switch (p->flags & IORESOURCE_DMA_TYPE_MASK) {
|
|
case IORESOURCE_DMA_8BIT:
|
|
dma->transfer = ACPI_TRANSFER_8;
|
|
break;
|
|
case IORESOURCE_DMA_8AND16BIT:
|
|
dma->transfer = ACPI_TRANSFER_8_16;
|
|
break;
|
|
default:
|
|
dma->transfer = ACPI_TRANSFER_16;
|
|
}
|
|
|
|
dma->bus_master = !!(p->flags & IORESOURCE_DMA_MASTER);
|
|
dma->channel_count = 1;
|
|
dma->channels[0] = p->start;
|
|
}
|
|
|
|
static void pnpacpi_encode_io(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_io *io = &resource->data.io;
|
|
|
|
/* Note: pnp_assign_port will copy pnp_port->flags into p->flags */
|
|
io->io_decode = (p->flags & PNP_PORT_FLAG_16BITADDR) ?
|
|
ACPI_DECODE_16 : ACPI_DECODE_10;
|
|
io->minimum = p->start;
|
|
io->maximum = p->end;
|
|
io->alignment = 0; /* Correct? */
|
|
io->address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_io(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_fixed_io *fixed_io = &resource->data.fixed_io;
|
|
|
|
fixed_io->address = p->start;
|
|
fixed_io->address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_mem24(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_memory24 *memory24 = &resource->data.memory24;
|
|
|
|
/* Note: pnp_assign_mem will copy pnp_mem->flags into p->flags */
|
|
memory24->write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
memory24->minimum = p->start;
|
|
memory24->maximum = p->end;
|
|
memory24->alignment = 0;
|
|
memory24->address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_mem32(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_memory32 *memory32 = &resource->data.memory32;
|
|
|
|
memory32->write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
memory32->minimum = p->start;
|
|
memory32->maximum = p->end;
|
|
memory32->alignment = 0;
|
|
memory32->address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
static void pnpacpi_encode_fixed_mem32(struct acpi_resource *resource,
|
|
struct resource *p)
|
|
{
|
|
struct acpi_resource_fixed_memory32 *fixed_memory32 = &resource->data.fixed_memory32;
|
|
|
|
fixed_memory32->write_protect =
|
|
(p->flags & IORESOURCE_MEM_WRITEABLE) ?
|
|
ACPI_READ_WRITE_MEMORY : ACPI_READ_ONLY_MEMORY;
|
|
fixed_memory32->address = p->start;
|
|
fixed_memory32->address_length = p->end - p->start + 1;
|
|
}
|
|
|
|
int pnpacpi_encode_resources(struct pnp_resource_table *res_table,
|
|
struct acpi_buffer *buffer)
|
|
{
|
|
int i = 0;
|
|
/* pnpacpi_build_resource_template allocates extra mem */
|
|
int res_cnt = (buffer->length - 1) / sizeof(struct acpi_resource) - 1;
|
|
struct acpi_resource *resource = buffer->pointer;
|
|
int port = 0, irq = 0, dma = 0, mem = 0;
|
|
|
|
pnp_dbg("res cnt %d", res_cnt);
|
|
while (i < res_cnt) {
|
|
switch (resource->type) {
|
|
case ACPI_RESOURCE_TYPE_IRQ:
|
|
pnp_dbg("Encode irq");
|
|
pnpacpi_encode_irq(resource,
|
|
&res_table->irq_resource[irq]);
|
|
irq++;
|
|
break;
|
|
|
|
case ACPI_RESOURCE_TYPE_DMA:
|
|
pnp_dbg("Encode dma");
|
|
pnpacpi_encode_dma(resource,
|
|
&res_table->dma_resource[dma]);
|
|
dma++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_IO:
|
|
pnp_dbg("Encode io");
|
|
pnpacpi_encode_io(resource,
|
|
&res_table->port_resource[port]);
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_IO:
|
|
pnp_dbg("Encode fixed io");
|
|
pnpacpi_encode_fixed_io(resource,
|
|
&res_table->
|
|
port_resource[port]);
|
|
port++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY24:
|
|
pnp_dbg("Encode mem24");
|
|
pnpacpi_encode_mem24(resource,
|
|
&res_table->mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_MEMORY32:
|
|
pnp_dbg("Encode mem32");
|
|
pnpacpi_encode_mem32(resource,
|
|
&res_table->mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
|
|
pnp_dbg("Encode fixed mem32");
|
|
pnpacpi_encode_fixed_mem32(resource,
|
|
&res_table->
|
|
mem_resource[mem]);
|
|
mem++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
|
|
pnp_dbg("Encode ext irq");
|
|
pnpacpi_encode_ext_irq(resource,
|
|
&res_table->irq_resource[irq]);
|
|
irq++;
|
|
break;
|
|
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
|
|
case ACPI_RESOURCE_TYPE_END_DEPENDENT:
|
|
case ACPI_RESOURCE_TYPE_VENDOR:
|
|
case ACPI_RESOURCE_TYPE_END_TAG:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS16:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS32:
|
|
case ACPI_RESOURCE_TYPE_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
|
|
case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
|
|
default: /* other type */
|
|
pnp_warn("unknown resource type %d", resource->type);
|
|
return -EINVAL;
|
|
}
|
|
resource++;
|
|
i++;
|
|
}
|
|
return 0;
|
|
}
|