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ACPI bus manager interface, revision 3. Now allows full namespace traversal. Next is AML control method execution.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@11540 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Nathan Whitehorn 2005-03-02 19:31:30 +00:00
parent 23b6e06ac6
commit 53403b7edc
2 changed files with 101 additions and 7 deletions
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44
headers/os/drivers/ACPI.h
View File

@ -10,10 +10,13 @@
#include <KernelExport.h>
typedef struct acpi_module_info acpi_module_info;
typedef struct acpi_object_info acpi_object_info;
struct acpi_module_info {
bus_manager_info binfo;
/* Fixed Event Management */
void (*enable_fixed_event) (uint32 event);
void (*disable_fixed_event) (uint32 event);
@ -23,20 +26,49 @@ struct acpi_module_info {
status_t (*install_fixed_event_handler) (uint32 event, interrupt_handler *handler, void *data);
status_t (*remove_fixed_event_handler) (uint32 event, interrupt_handler *handler);
/* Namespace Access */
status_t (*get_next_entry) (uint32 object_type, const char *base, char *result, size_t len, void **counter);
status_t (*get_device_hid) (const char *path, char *hid);
uint32 (*get_object_type) (const char *path);
};
#define B_ACPI_MODULE_NAME "bus_managers/acpi/v1"
#ifndef __ACTYPES_H__
/* ACPI fixed event types */
#define ACPI_EVENT_PMTIMER 0
#define ACPI_EVENT_GLOBAL 1
#define ACPI_EVENT_POWER_BUTTON 2
#define ACPI_EVENT_SLEEP_BUTTON 3
#define ACPI_EVENT_RTC 4
enum {
ACPI_EVENT_PMTIMER = 0,
ACPI_EVENT_GLOBAL,
ACPI_EVENT_POWER_BUTTON,
ACPI_EVENT_SLEEP_BUTTON,
ACPI_EVENT_RTC
};
/* ACPI Object Types */
enum {
ACPI_TYPE_ANY = 0,
ACPI_TYPE_INTEGER,
ACPI_TYPE_STRING,
ACPI_TYPE_BUFFER,
ACPI_TYPE_PACKAGE,
ACPI_TYPE_FIELD_UNIT,
ACPI_TYPE_DEVICE,
ACPI_TYPE_EVENT,
ACPI_TYPE_METHOD,
ACPI_TYPE_MUTEX,
ACPI_TYPE_REGION,
ACPI_TYPE_POWER,
ACPI_TYPE_PROCESSOR,
ACPI_TYPE_THERMAL,
ACPI_TYPE_BUFFER_FIELD
};
#endif
#define B_ACPI_MODULE_NAME "bus_managers/acpi/v1"
#endif /* _ACPI_H */

64
src/add-ons/kernel/bus_managers/acpi/acpi_busman.c
View File

@ -17,6 +17,10 @@ void reset_fixed_event (uint32 event);
status_t install_fixed_event_handler (uint32 event, interrupt_handler *handler, void *data);
status_t remove_fixed_event_handler (uint32 event, interrupt_handler *handler);
status_t get_next_entry (uint32 object_type, const char *base, char *result, size_t len, void **counter);
status_t get_device_hid (const char *path, char *hid);
uint32 get_object_type (const char *path);
struct acpi_module_info acpi_module = {
{
{
@ -33,7 +37,10 @@ struct acpi_module_info acpi_module = {
fixed_event_status,
reset_fixed_event,
install_fixed_event_handler,
remove_fixed_event_handler
remove_fixed_event_handler,
get_next_entry,
get_device_hid,
get_object_type
};
_EXPORT module_info *modules[] = {
@ -115,3 +122,58 @@ status_t install_fixed_event_handler (uint32 event, interrupt_handler *handler,
status_t remove_fixed_event_handler (uint32 event, interrupt_handler *handler) {
return ((AcpiRemoveFixedEventHandler(event,handler) == AE_OK) ? B_OK : B_ERROR);
}
status_t get_next_entry (uint32 object_type, const char *base, char *result, size_t len, void **counter) {
ACPI_STATUS result_status;
ACPI_HANDLE parent,child,new_child;
ACPI_BUFFER buffer;
if ((base == NULL) || (strcmp(base,"\\") == 0)) {
parent = ACPI_ROOT_OBJECT;
} else {
result_status = AcpiGetHandle(NULL,base,&parent);
if (result_status != AE_OK)
return B_ENTRY_NOT_FOUND;
}
child = *counter;
result_status = AcpiGetNextObject(object_type,parent,child,&new_child);
if (result_status != AE_OK)
return B_ENTRY_NOT_FOUND;
*counter = new_child;
buffer.Length = len;
buffer.Pointer = result;
result_status = AcpiGetName(new_child,ACPI_FULL_PATHNAME,&buffer);
if (result_status != AE_OK)
return B_NO_MEMORY; /* Corresponds to AE_BUFFER_OVERFLOW */
return B_OK;
}
status_t get_device_hid (const char *path, char *hid) {
ACPI_HANDLE handle;
ACPI_DEVICE_INFO info;
if (AcpiGetHandle(NULL,path,&handle) != AE_OK)
return B_ENTRY_NOT_FOUND;
if (AcpiGetObjectInfo(handle,&info) != AE_OK)
return B_BAD_TYPE;
strcpy(hid,info.HardwareId.Value);
return B_OK;
}
uint32 get_object_type (const char *path) {
ACPI_HANDLE handle;
ACPI_OBJECT_TYPE type;
if (AcpiGetHandle(NULL,path,&handle) != AE_OK)
return B_ENTRY_NOT_FOUND;
AcpiGetType(handle,&type);
return type;
}