patch-2.4.6 linux/drivers/acpi/ospm/system/sm.c
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- Lines: 331
- Date:
Wed Jun 20 17:47:40 2001
- Orig file:
v2.4.5/linux/drivers/acpi/ospm/system/sm.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.5/linux/drivers/acpi/ospm/system/sm.c linux/drivers/acpi/ospm/system/sm.c
@@ -0,0 +1,330 @@
+/*****************************************************************************
+ *
+ * Module Name: sm.c
+ * $Revision: 16 $
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000, 2001 Andrew Grover
+ *
+ * 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 of the License, 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 <acpi.h>
+#include "sm.h"
+
+
+#define _COMPONENT ACPI_SYSTEM
+ MODULE_NAME ("sm")
+
+
+/****************************************************************************
+ * Internal Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_print
+ *
+ * PARAMETERS:
+ *
+ * RETURN:
+ *
+ * DESCRIPTION: Prints out information on a specific system.
+ *
+ ****************************************************************************/
+
+void
+sm_print (
+ SM_CONTEXT *system)
+{
+
+ return;
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_add_device
+ *
+ * PARAMETERS:
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_add_device(
+ BM_HANDLE device_handle,
+ void **context)
+{
+ ACPI_STATUS status = AE_OK;
+ BM_DEVICE *device = NULL;
+ SM_CONTEXT *system = NULL;
+ u8 i, type_a, type_b;
+
+
+ if (!context || *context) {
+ return(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Allocate a new SM_CONTEXT structure.
+ */
+ system = acpi_os_callocate(sizeof(SM_CONTEXT));
+ if (!system) {
+ return(AE_NO_MEMORY);
+ }
+
+ /*
+ * Get information on this device.
+ */
+ status = bm_get_device_info(device_handle, &device);
+ if (ACPI_FAILURE(status)) {
+ goto end;
+ }
+
+ system->device_handle = device->handle;
+ system->acpi_handle = device->acpi_handle;
+
+ /*
+ * Sx States:
+ * ----------
+ * Figure out which Sx states are supported.
+ */
+ for (i=0; i<SM_MAX_SYSTEM_STATES; i++) {
+ if (ACPI_SUCCESS(acpi_hw_obtain_sleep_type_register_data(
+ i,
+ &type_a,
+ &type_b))) {
+ system->states[i] = TRUE;
+ }
+ }
+
+ status = sm_osl_add_device(system);
+ if (ACPI_FAILURE(status)) {
+ goto end;
+ }
+
+ *context = system;
+
+ sm_print(system);
+
+end:
+ if (ACPI_FAILURE(status)) {
+ acpi_os_free(system);
+ }
+
+ return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_remove_device
+ *
+ * PARAMETERS:
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_remove_device (
+ void **context)
+{
+ ACPI_STATUS status = AE_OK;
+ SM_CONTEXT *system = NULL;
+
+ if (!context || !*context) {
+ return(AE_BAD_PARAMETER);
+ }
+
+ system = (SM_CONTEXT*)*context;
+
+ status = sm_osl_remove_device(system);
+
+ acpi_os_free(system);
+
+ *context = NULL;
+
+ return(status);
+}
+
+
+/****************************************************************************
+ * External Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_initialize
+ *
+ * PARAMETERS: <none>
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_initialize (void)
+{
+ ACPI_STATUS status = AE_OK;
+ BM_DEVICE_ID criteria;
+ BM_DRIVER driver;
+
+ MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
+ MEMSET(&driver, 0, sizeof(BM_DRIVER));
+
+ /*
+ * Register driver for the System device.
+ */
+ criteria.type = BM_TYPE_SYSTEM;
+
+ driver.notify = &sm_notify;
+ driver.request = &sm_request;
+
+ status = bm_register_driver(&criteria, &driver);
+
+ return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_terminate
+ *
+ * PARAMETERS: <none>
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_terminate (void)
+{
+ ACPI_STATUS status = AE_OK;
+ BM_DEVICE_ID criteria;
+ BM_DRIVER driver;
+
+ MEMSET(&criteria, 0, sizeof(BM_DEVICE_ID));
+ MEMSET(&driver, 0, sizeof(BM_DRIVER));
+
+ /*
+ * Unregister driver for System devices.
+ */
+ criteria.type = BM_TYPE_SYSTEM;
+
+ driver.notify = &sm_notify;
+ driver.request = &sm_request;
+
+ status = bm_unregister_driver(&criteria, &driver);
+
+ return(status);
+}
+
+
+/*****************************************************************************
+ *
+ * FUNCTION: sm_notify
+ *
+ * PARAMETERS: <none>
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+ACPI_STATUS
+sm_notify (
+ BM_NOTIFY notify_type,
+ BM_HANDLE device_handle,
+ void **context)
+{
+ ACPI_STATUS status = AE_OK;
+
+ if (!context) {
+ return(AE_BAD_PARAMETER);
+ }
+
+ switch (notify_type) {
+
+ case BM_NOTIFY_DEVICE_ADDED:
+ status = sm_add_device(device_handle, context);
+ break;
+
+ case BM_NOTIFY_DEVICE_REMOVED:
+ status = sm_remove_device(context);
+ break;
+
+ default:
+ status = AE_SUPPORT;
+ break;
+ }
+
+ return(status);
+}
+
+
+/****************************************************************************
+ *
+ * FUNCTION: sm_request
+ *
+ * PARAMETERS:
+ *
+ * RETURN:
+ *
+ * DESCRIPTION:
+ *
+ ****************************************************************************/
+
+ACPI_STATUS
+sm_request (
+ BM_REQUEST *request,
+ void *context)
+{
+ ACPI_STATUS status = AE_OK;
+
+ /*
+ * Must have a valid request structure and context.
+ */
+ if (!request || !context) {
+ return(AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Handle Request:
+ * ---------------
+ */
+ switch (request->command) {
+
+ default:
+ status = AE_SUPPORT;
+ break;
+ }
+
+ request->status = status;
+
+ return(status);
+}
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