6b13f685e
김민수
BSP 최초 추가
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#define EXPORT_ACPI_INTERFACES
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include "acevents.h"
#define _COMPONENT ACPI_EVENTS
ACPI_MODULE_NAME("evxfregn")
acpi_status
acpi_install_address_space_handler(acpi_handle device,
acpi_adr_space_type space_id,
acpi_adr_space_handler handler,
acpi_adr_space_setup setup, void *context)
{
struct acpi_namespace_node *node;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_install_address_space_handler);
if (!device) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
node = acpi_ns_validate_handle(device);
if (!node) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
status =
acpi_ev_install_space_handler(node, space_id, handler, setup,
context);
if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
switch (space_id) {
case ACPI_ADR_SPACE_SYSTEM_MEMORY:
case ACPI_ADR_SPACE_SYSTEM_IO:
case ACPI_ADR_SPACE_PCI_CONFIG:
case ACPI_ADR_SPACE_DATA_TABLE:
if (!acpi_gbl_reg_methods_executed) {
goto unlock_and_exit;
}
break;
default:
break;
}
status = acpi_ev_execute_reg_methods(node, space_id);
unlock_and_exit:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler)
acpi_status
acpi_remove_address_space_handler(acpi_handle device,
acpi_adr_space_type space_id,
acpi_adr_space_handler handler)
{
union acpi_operand_object *obj_desc;
union acpi_operand_object *handler_obj;
union acpi_operand_object *region_obj;
union acpi_operand_object **last_obj_ptr;
struct acpi_namespace_node *node;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler);
if (!device) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
node = acpi_ns_validate_handle(device);
if (!node ||
((node->type != ACPI_TYPE_DEVICE) &&
(node->type != ACPI_TYPE_PROCESSOR) &&
(node->type != ACPI_TYPE_THERMAL) &&
(node != acpi_gbl_root_node))) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
obj_desc = acpi_ns_get_attached_object(node);
if (!obj_desc) {
status = AE_NOT_EXIST;
goto unlock_and_exit;
}
handler_obj = obj_desc->device.handler;
last_obj_ptr = &obj_desc->device.handler;
while (handler_obj) {
if (handler_obj->address_space.space_id == space_id) {
if (handler_obj->address_space.handler != handler) {
status = AE_BAD_PARAMETER;
goto unlock_and_exit;
}
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Removing address handler %p(%p) for region %s "
"on Device %p(%p)
",
handler_obj, handler,
acpi_ut_get_region_name(space_id),
node, obj_desc));
region_obj = handler_obj->address_space.region_list;
while (region_obj) {
acpi_ev_detach_region(region_obj, TRUE);
region_obj =
handler_obj->address_space.region_list;
}
*last_obj_ptr = handler_obj->address_space.next;
acpi_ut_remove_reference(handler_obj);
goto unlock_and_exit;
}
last_obj_ptr = &handler_obj->address_space.next;
handler_obj = handler_obj->address_space.next;
}
ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
"Unable to remove address handler %p for %s(%X), DevNode %p, obj %p
",
handler, acpi_ut_get_region_name(space_id), space_id,
node, obj_desc));
status = AE_NOT_EXIST;
unlock_and_exit:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(status);
}
ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler)
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