patch-2.4.22 linux-2.4.22/drivers/acpi/ospm/thermal/tz.c

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diff -urN linux-2.4.21/drivers/acpi/ospm/thermal/tz.c linux-2.4.22/drivers/acpi/ospm/thermal/tz.c
@@ -1,642 +0,0 @@
-/*****************************************************************************
- *
- * Module Name: tz.c
- *   $Revision: 44 $
- *
- *****************************************************************************/
-
-/*
- *  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 <bm.h>
-#include "tz.h"
-
-
-#define _COMPONENT		ACPI_THERMAL
-	MODULE_NAME		("tz")
-
-
-/****************************************************************************
- *                                  Globals
- ****************************************************************************/
-
-extern int TZP;
-
-
-/****************************************************************************
- *                            Internal Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION:    tz_print
- *
- ****************************************************************************/
-
-void
-tz_print (
-	TZ_CONTEXT		*tz)
-{
-#ifdef ACPI_DEBUG
-	acpi_buffer		buffer;
-	u32			i,j = 0;
-	TZ_THRESHOLDS		*thresholds = NULL;
-
-	FUNCTION_TRACE("tz_print");
-
-	if (!tz)
-		return;
-
-	thresholds = &(tz->policy.thresholds);
-
-	buffer.length = 256;
-	buffer.pointer = acpi_os_callocate(buffer.length);
-	if (!buffer.pointer)
-		return;
-
-	/*
-	 * Get the full pathname for this ACPI object.
-	 */
-	acpi_get_name(tz->acpi_handle, ACPI_FULL_PATHNAME, &buffer);
-
-	/*
-	 * Print out basic thermal zone information.
-	 */
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "| Thermal_zone[%02x]:[%p] %s\n", tz->device_handle, tz->acpi_handle, (char*)buffer.pointer));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   temperature[%d] state[%08x]\n", tz->policy.temperature, tz->policy.state));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   cooling_mode[%08x] polling_freq[%d]\n", tz->policy.cooling_mode, tz->policy.polling_freq));
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   critical[%d]\n", thresholds->critical.temperature));
-	if (thresholds->hot.is_valid)
-		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   hot[%d]\n", thresholds->hot.temperature));
-	if (thresholds->passive.is_valid) {
-		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   passive[%d]: tc1[%d] tc2[%d] tsp[%d]\n", thresholds->passive.temperature, thresholds->passive.tc1, thresholds->passive.tc2, thresholds->passive.tsp));
-		if (thresholds->passive.devices.count > 0) {
-			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|     devices"));
-			for (j=0; (j<thresholds->passive.devices.count && j<10); j++) {
-				ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "[%02x]", thresholds->passive.devices.handles[j]));
-			}
-			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "\n"));
-		}
-	}
-	for (i=0; i<TZ_MAX_ACTIVE_THRESHOLDS; i++) {
-		if (!thresholds->active[i].is_valid)
-			break;
-		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|   active[%d]: index[%d]\n", thresholds->active[i].temperature, i));
-		if (thresholds->active[i].devices.count > 0) {
-			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "|     devices"));
-			for (j=0; (j<thresholds->active[i].devices.count && j<10); j++) {
-				ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "[%02x]", thresholds->active[i].devices.handles[j]));
-			}
-			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "\n"));
-		}
-	}
-
-	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INFO, "+------------------------------------------------------------\n"));
-
-	acpi_os_free(buffer.pointer);
-#endif /*ACPI_DEBUG*/
-
-	return;
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_get_temperaturee
- *
- ****************************************************************************/
-
-acpi_status
-tz_get_temperature (
-	TZ_CONTEXT		*tz)
-{
-	acpi_status             status = AE_OK;
-
-	FUNCTION_TRACE("tz_get_temperature");
-
-	if (!tz) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * Evaluate the _TMP method to get the current temperature.
-	 */
-	status = bm_evaluate_simple_integer(tz->acpi_handle, "_TMP", &(tz->policy.temperature));
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %d d_k\n", tz->policy.temperature));
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_set_cooling_preference
- *
- ****************************************************************************/
-
-acpi_status
-tz_set_cooling_preference (
-	TZ_CONTEXT              *tz,
-	TZ_COOLING_MODE         cooling_mode)
-{
-	acpi_status             status = AE_OK;
-	acpi_object_list        arg_list;
-	acpi_object             arg0;
-
-	FUNCTION_TRACE("tz_set_cooling_preference");
-
-	if (!tz || ((cooling_mode != TZ_COOLING_MODE_ACTIVE) && (cooling_mode != TZ_COOLING_MODE_PASSIVE))) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * Build the argument list, which simply consists of the current
-	 * cooling preference.
-	 */
-	memset(&arg_list, 0, sizeof(acpi_object));
-	arg_list.count = 1;
-	arg_list.pointer = &arg0;
-
-	memset(&arg0, 0, sizeof(acpi_object));
-	arg0.type = ACPI_TYPE_INTEGER;
-	arg0.integer.value = cooling_mode;
-
-	/*
-	 * Evaluate "_SCP" - setting the new cooling preference.
-	 */
-	status = acpi_evaluate_object(tz->acpi_handle, "_SCP", &arg_list, NULL);
-	if (ACPI_FAILURE(status)) {
-		tz->policy.cooling_mode = -1;
-		return_ACPI_STATUS(status);
-	}
-
-	tz->policy.cooling_mode = cooling_mode;
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_get_thresholds
- *
- ****************************************************************************/
-
-acpi_status
-tz_get_thresholds (
-	TZ_CONTEXT		*tz)
-{
-	acpi_status		status = AE_OK;
-	TZ_THRESHOLDS		*thresholds = NULL;
-	u32			value = 0;
-	u32                     i = 0;
-
-	FUNCTION_TRACE("acpi_tz_get_thresholds");
-
-	if (!tz) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	thresholds = &(tz->policy.thresholds);
-
-	/* Critical Shutdown (required) */
-
-	status = bm_evaluate_simple_integer(tz->acpi_handle, "_CRT", &value);
-	if (ACPI_FAILURE(status)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "No critical threshold\n"));
-		return_ACPI_STATUS(status);
-	}
-	else {
-		thresholds->critical.temperature = value;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found critical threshold [%d]\n", thresholds->critical.temperature));
-
-	}
-
-	/* Critical Sleep (optional) */
-
-	status = bm_evaluate_simple_integer(tz->acpi_handle, "_HOT", &value);
-	if (ACPI_FAILURE(status)) {
-		thresholds->hot.is_valid = 0;
-		thresholds->hot.temperature = 0;
-	}
-	else {
-		thresholds->hot.is_valid = 1;
-		thresholds->hot.temperature = value;
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found hot threshold [%d]\n", thresholds->hot.temperature));
-	}
-
-	/* Passive: Processors (optional) */
-
-	status = bm_evaluate_simple_integer(tz->acpi_handle, "_PSV", &value);
-	if (ACPI_FAILURE(status)) {
-		thresholds->passive.is_valid = 0;
-		thresholds->passive.temperature = 0;
-	}
-	else {
-		thresholds->passive.is_valid = 1;
-		thresholds->passive.temperature = value;
-
-		status = bm_evaluate_simple_integer(tz->acpi_handle, "_TC1", &value);
-		if (ACPI_FAILURE(status)) {
-			thresholds->passive.is_valid = 0;
-		}
-		thresholds->passive.tc1 = value;
-
-		status = bm_evaluate_simple_integer(tz->acpi_handle, "_TC2", &value);
-		if (ACPI_FAILURE(status)) {
-			thresholds->passive.is_valid = 0;
-		}
-		thresholds->passive.tc2 = value;
-
-		status = bm_evaluate_simple_integer(tz->acpi_handle, "_TSP", &value);
-		if (ACPI_FAILURE(status)) {
-			thresholds->passive.is_valid = 0;
-		}
-		thresholds->passive.tsp = value;
-
-		status = bm_evaluate_reference_list(tz->acpi_handle, "_PSL", &(thresholds->passive.devices));
-		if (ACPI_FAILURE(status)) {
-			thresholds->passive.is_valid = 0;
-		}
-
-		if (thresholds->passive.is_valid) {
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found passive threshold [%d]\n", thresholds->passive.temperature));
-		}
-		else {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid passive threshold\n"));
-		}
-	}
-
-	/* Active: Fans, etc. (optional) */
-
-	for (i=0; i<TZ_MAX_ACTIVE_THRESHOLDS; i++) {
-
-		char name[5] = {'_','A','C',('0'+i),'\0'};
-
-		status = bm_evaluate_simple_integer(tz->acpi_handle, name, &value);
-		if (ACPI_FAILURE(status)) {
-			thresholds->active[i].is_valid = 0;
-			thresholds->active[i].temperature = 0;
-			break;
-		}
-
-		thresholds->active[i].temperature = value;
-		name[2] = 'L';
-
-		status = bm_evaluate_reference_list(tz->acpi_handle, name, &(thresholds->active[i].devices));
-		if (ACPI_SUCCESS(status)) {
-			thresholds->active[i].is_valid = 1;
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found active threshold [%d]:[%d]\n", i, thresholds->active[i].temperature));
-		}
-		else {
-			ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid active threshold [%d]\n", i));
-		}
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_add_device
- *
- ****************************************************************************/
-
-acpi_status
-tz_add_device (
-	BM_HANDLE               device_handle,
-	void                    **context)
-{
-	acpi_status             status = AE_OK;
-	TZ_CONTEXT              *tz = NULL;
-	BM_DEVICE		*device = NULL;
-	acpi_handle             tmp_handle = NULL;
-	static u32		zone_count = 0;
-
-	FUNCTION_TRACE("tz_add_device");
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Adding thermal zone [%02x].\n", device_handle));
-
-	if (!context || *context) {
-		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Invalid context for device [%02x].\n", device_handle));
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * Get information on this device.
-	 */
-	status = bm_get_device_info(device_handle, &device);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * Allocate a new Thermal Zone device.
-	 */
-	tz = acpi_os_callocate(sizeof(TZ_CONTEXT));
-	if (!tz) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	tz->device_handle = device->handle;
-	tz->acpi_handle = device->acpi_handle;
-
-	/* TBD: How to manage 'uid' when zones are Pn_p? */
-	sprintf(tz->uid, "%d", zone_count++);
-
-	/*
-	 * Temperature:
-	 * ------------
-	 * Make sure we can read the zone's current temperature (_TMP).
-	 * If we can't, there's no use in doing any policy (abort).
-	 */
-	status = tz_get_temperature(tz);
-	if (ACPI_FAILURE(status))
-		goto end;
-
-	/*
-	 * Polling Frequency:
-	 * ------------------
-	 * If _TZP doesn't exist use the OS default polling frequency.
-	 */
-	status = bm_evaluate_simple_integer(tz->acpi_handle, "_TZP", &(tz->policy.polling_freq));
-	if (ACPI_FAILURE(status)) {
-		tz->policy.polling_freq = TZP;
-	}
-	status = AE_OK;
-
-	/*
-	 * Cooling Preference:
-	 * -------------------
-	 * Default to ACTIVE (noisy) cooling until policy decides otherwise.
-	 * Note that _SCP is optional.
-	 */
-	tz_set_cooling_preference(tz, TZ_COOLING_MODE_ACTIVE);
-
-	/*
-	 * Start Policy:
-	 * -------------
-	 * Thermal policy is included in the kernel (this driver) because
-	 * of the critical role it plays in avoiding nuclear meltdown. =O
-	 */
-	status = tz_policy_add_device(tz);
-	if (ACPI_FAILURE(status))
-		goto end;
-
-	status = tz_osl_add_device(tz);
-	if (ACPI_FAILURE(status))
-		goto end;
-
-	*context = tz;
-
-	tz_print(tz);
-
-end:
-	if (ACPI_FAILURE(status))
-		acpi_os_free(tz);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_remove_device
- *
- ****************************************************************************/
-
-acpi_status
-tz_remove_device (
-	void			**context)
-{
-	acpi_status		status = AE_OK;
-	TZ_CONTEXT		*tz = NULL;
-
-	FUNCTION_TRACE("tz_remove_device");
-
-	if (!context || !*context) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	tz = (TZ_CONTEXT*)(*context);
-
-	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Removing thermal zone [%02x].\n", tz->device_handle));
-
-	status = tz_osl_remove_device(tz);
-
-	/*
-	 * Remove Policy:
-	 * --------------
-	 * TBD: Move all thermal zone policy to user-mode daemon...
-	 */
-	status = tz_policy_remove_device(tz);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	acpi_os_free(tz);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *                            External Functions
- ****************************************************************************/
-
-/****************************************************************************
- *
- * FUNCTION:    tz_initialize
- *
- ****************************************************************************/
-
-acpi_status
-tz_initialize (void)
-{
-	acpi_status             status = AE_OK;
-	BM_DEVICE_ID		criteria;
-	BM_DRIVER		driver;
-
-	FUNCTION_TRACE("tz_initialize");
-
-	memset(&criteria, 0, sizeof(BM_DEVICE_ID));
-	memset(&driver, 0, sizeof(BM_DRIVER));
-
-	/*
-	 * Register driver for thermal zone devices.
-	 */
-	criteria.type = BM_TYPE_THERMAL_ZONE;
-
-	driver.notify = &tz_notify;
-	driver.request = &tz_request;
-
-	status = bm_register_driver(&criteria, &driver);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_terminate
- *
- ****************************************************************************/
-
-acpi_status
-tz_terminate (void)
-{
-	acpi_status             status = AE_OK;
-	BM_DEVICE_ID		criteria;
-	BM_DRIVER		driver;
-
-	FUNCTION_TRACE("tz_terminate");
-
-	memset(&criteria, 0, sizeof(BM_DEVICE_ID));
-	memset(&driver, 0, sizeof(BM_DRIVER));
-
-	/*
-	 * Unregister driver for thermal zone devices.
-	 */
-	criteria.type = BM_TYPE_THERMAL_ZONE;
-
-	driver.notify = &tz_notify;
-	driver.request = &tz_request;
-
-	status = bm_unregister_driver(&criteria, &driver);
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_notify
- *
- ****************************************************************************/
-
-acpi_status
-tz_notify (
-	BM_NOTIFY               notify_type,
-	BM_HANDLE               device_handle,
-	void                    **context)
-{
-	acpi_status             status = AE_OK;
-	TZ_CONTEXT		*tz = NULL;
-
-	FUNCTION_TRACE("tz_notify");
-
-	if (!context) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	tz = (TZ_CONTEXT*)*context;
-
-	switch (notify_type) {
-
-	case BM_NOTIFY_DEVICE_ADDED:
-		status = tz_add_device(device_handle, context);
-		break;
-
-	case BM_NOTIFY_DEVICE_REMOVED:
-		status = tz_remove_device(context);
-		break;
-
-	case TZ_NOTIFY_TEMPERATURE_CHANGE:
-		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Temperature (_TMP) change event detected.\n"));
-		tz_policy_check(*context);
-		status = tz_get_temperature(tz);
-		if (ACPI_SUCCESS(status)) {
-			status = tz_osl_generate_event(notify_type, tz);
-		}
-		break;
-
-	case TZ_NOTIFY_THRESHOLD_CHANGE:
-		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Threshold (_SCP) change event detected.\n"));
-		status = tz_policy_remove_device(tz);
-		if (ACPI_SUCCESS(status)) {
-			status = tz_policy_add_device(tz);
-		}
-		status = tz_osl_generate_event(notify_type, tz);
-		break;
-
-	case TZ_NOTIFY_DEVICE_LISTS_CHANGE:
-		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Device lists (_ALx, _PSL, _TZD) change event detected.\n"));
-		status = tz_policy_remove_device(tz);
-		if (ACPI_SUCCESS(status)) {
-			status = tz_policy_add_device(tz);
-		}
-		status = tz_osl_generate_event(notify_type, tz);
-		break;
-
-	default:
-		status = AE_SUPPORT;
-		break;
-	}
-
-	return_ACPI_STATUS(status);
-}
-
-
-/****************************************************************************
- *
- * FUNCTION:    tz_request
- *
- ****************************************************************************/
-
-acpi_status
-tz_request (
-	BM_REQUEST		*request,
-	void                    *context)
-{
-	acpi_status             status = AE_OK;
-	TZ_CONTEXT              *tz = NULL;
-
-	FUNCTION_TRACE("tz_request");
-
-	/*
-	 * Must have a valid request structure and context.
-	 */
-	if (!request || !context) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	tz = (TZ_CONTEXT*)context;
-
-	/*
-	 * Handle request:
-	 * ---------------
-	 */
-	switch (request->command) {
-
-	default:
-		status = AE_SUPPORT;
-		break;
-	}
-
-	request->status = status;
-
-	return_ACPI_STATUS(status);
-}
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)