/*
* Clearing the flag (IORESOURCE_BUSY) allows drivers to use
* the io ports if they really know they can use it, while
* still preventing hotplug PCI devices from using it.
*/
static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
{
struct resource *requested_res = NULL;
ACPI_FUNCTION_TRACE("acpi_reserve_io_ranges");
if (res->id == ACPI_RSTYPE_IO) {
struct acpi_resource_io *io_res = &res->data.io;
if (io_res->min_base_address != io_res->max_base_address)
return_VALUE(AE_OK);
if (IS_RESERVED_ADDR
(io_res->min_base_address, io_res->range_length)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Motherboard resources 0x%08x - 0x%08x\n",
io_res->min_base_address,
io_res->min_base_address +
io_res->range_length));
requested_res =
request_region(io_res->min_base_address,
io_res->range_length, "motherboard");
}
} else if (res->id == ACPI_RSTYPE_FIXED_IO) {
struct acpi_resource_fixed_io *fixed_io_res =
&res->data.fixed_io;
if (IS_RESERVED_ADDR
(fixed_io_res->base_address, fixed_io_res->range_length)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Motherboard resources 0x%08x - 0x%08x\n",
fixed_io_res->base_address,
fixed_io_res->base_address +
fixed_io_res->range_length));
requested_res =
request_region(fixed_io_res->base_address,
fixed_io_res->range_length,
"motherboard");
}
} else {
/* Memory mapped IO? */
}
if (requested_res)
requested_res->flags &= ~IORESOURCE_BUSY;
return_VALUE(AE_OK);
}
/*
* Clearing the flag (IORESOURCE_BUSY) allows drivers to use
* the io ports if they really know they can use it, while
* still preventing hotplug PCI devices from using it.
*/
static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data)
{
struct resource *requested_res = NULL;
if (res->type == ACPI_RESOURCE_TYPE_IO) {
struct acpi_resource_io *io_res = &res->data.io;
if (io_res->minimum != io_res->maximum)
return AE_OK;
if (IS_RESERVED_ADDR
(io_res->minimum, io_res->address_length)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Motherboard resources 0x%08x - 0x%08x\n",
io_res->minimum,
io_res->minimum +
io_res->address_length));
requested_res =
request_region(io_res->minimum,
io_res->address_length, "motherboard");
}
} else if (res->type == ACPI_RESOURCE_TYPE_FIXED_IO) {
struct acpi_resource_fixed_io *fixed_io_res =
&res->data.fixed_io;
if (IS_RESERVED_ADDR
(fixed_io_res->address, fixed_io_res->address_length)) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Motherboard resources 0x%08x - 0x%08x\n",
fixed_io_res->address,
fixed_io_res->address +
fixed_io_res->address_length));
requested_res =
request_region(fixed_io_res->address,
fixed_io_res->address_length,
"motherboard");
}
} else {
/* Memory mapped IO? */
}
if (requested_res)
requested_res->flags &= ~IORESOURCE_BUSY;
return AE_OK;
}
