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747b1f7520
Implement LPC commands and ectool commands to 1. Set/get threshold temperature values. 2. Toggle on/off automatic fan speed control. Signed-off-by: Vic Yang <victoryang@chromium.org> BUG=chrome-os-partner:8251 TEST=Manual test Change-Id: Ia4282a6fa47a838aed26540f33c1eb7acc92ef0e
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Thermal engine module for Chrome EC */
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#ifndef __CROS_EC_THERMAL_H
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#define __CROS_EC_THERMAL_H
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#include "util.h"
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#define THERMAL_CONFIG_NO_FLAG 0x0
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#define THERMAL_CONFIG_WARNING_ON_FAIL 0x1
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#define THERMAL_CONFIG_NEED_VS 0x2
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#define THERMAL_CONFIG_NEED_CPU 0x4
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/* Set a threshold temperature to this value to disable the threshold limit. */
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#define THERMAL_THRESHOLD_DISABLE 0
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/* This macro is used to disable all threshold for a sensor.
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* The value 0 expands to all field in the array 'thresholds'. Change this
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* if THERMAL_THRESHOLD_DISABLE is no longer 0.
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*/
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#define THERMAL_THRESHOLD_DISABLE_ALL 0
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enum thermal_threshold {
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/* Low fan speed */
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THRESHOLD_FAN_LO = 0,
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/* High fan speed */
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THRESHOLD_FAN_HI,
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/* Issue overheating warning */
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THRESHOLD_WARNING,
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/* Shut down CPU */
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THRESHOLD_CPU_DOWN,
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/* Shut down everything we can */
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THRESHOLD_POWER_DOWN,
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THRESHOLD_COUNT
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};
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/* Configuration for temperature sensor. Temperature value in degree K. */
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struct thermal_config_t {
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/* Configuration flags. */
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int8_t config_flags;
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/* Threshold temperatures. */
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int16_t thresholds[THRESHOLD_COUNT];
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};
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/* Set the threshold temperature value. Return -1 on error. */
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int thermal_set_threshold(int sensor_id, int threshold_id, int value);
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/* Get the threshold temperature value. Return -1 on error. */
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int thermal_get_threshold(int sensor_id, int threshold_id);
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/* Toggle automatic fan speed control. Return -1 on error. */
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int thermal_toggle_auto_fan_ctrl(int auto_fan_on);
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#endif /* __CROS_EC_THERMAL_H */
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