mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-28 02:35:28 +00:00
b00a446ec5
Previously, if the AP took fan control, the EC would never take it back. This meant the EC would leave the fan off even if the system was sitting at the INSERT screen or booted an alternate OS. BUG=chrome-os-partner:15189 BRANCH=link TEST=manual - boot system - from EC console, fanset 0 - faninfo shows fan at 0rpm - from root shell, crossystem recovery_request=123 && reboot - wait a few mins - faninfo should show fan spinning again Change-Id: I534c9978194085467f1df6eae971c55d4e8083be Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/35309
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
/* Thermal engine module for Chrome EC */
|
|
|
|
#ifndef __CROS_EC_THERMAL_H
|
|
#define __CROS_EC_THERMAL_H
|
|
|
|
#include "temp_sensor.h"
|
|
#include "util.h"
|
|
|
|
#define THERMAL_CONFIG_NO_FLAG 0x0
|
|
#define THERMAL_CONFIG_WARNING_ON_FAIL 0x1
|
|
|
|
/* Number of steps for fan speed control. Speed of each step defined
|
|
* in thermal.c */
|
|
#define THERMAL_FAN_STEPS 5
|
|
|
|
/* Set a threshold temperature to this value to disable the threshold limit. */
|
|
#define THERMAL_THRESHOLD_DISABLE 0
|
|
|
|
/* This macro is used to disable all threshold for a sensor.
|
|
* The value 0 expands to all field in the array 'thresholds'. Change this
|
|
* if THERMAL_THRESHOLD_DISABLE is no longer 0.
|
|
*/
|
|
#define THERMAL_THRESHOLD_DISABLE_ALL 0
|
|
|
|
enum thermal_threshold {
|
|
/* Issue overheating warning */
|
|
THRESHOLD_WARNING = 0,
|
|
/* Shut down CPU */
|
|
THRESHOLD_CPU_DOWN,
|
|
/* Shut down everything we can */
|
|
THRESHOLD_POWER_DOWN,
|
|
|
|
THRESHOLD_COUNT
|
|
};
|
|
|
|
/* Configuration for temperature sensor. Temperature value in degree K. */
|
|
struct thermal_config_t {
|
|
/* Configuration flags. */
|
|
int8_t config_flags;
|
|
/* Threshold temperatures. */
|
|
int16_t thresholds[THRESHOLD_COUNT + THERMAL_FAN_STEPS];
|
|
};
|
|
|
|
/**
|
|
* Set a threshold temperature.
|
|
*
|
|
* @param type Sensor type to set threshold for
|
|
* @param threshold_id Threshold ID to set
|
|
* @param value New threshold temperature in K, or
|
|
* THERMAL_THRESHOLD_DISABLE to disable this threshold.
|
|
*
|
|
* @return EC_SUCCESS if success, non-zero if error.
|
|
*/
|
|
int thermal_set_threshold(enum temp_sensor_type type, int threshold_id,
|
|
int value);
|
|
|
|
/**
|
|
* Read a threshold temperature.
|
|
*
|
|
* @param type Sensor type to get threshold for
|
|
* @param threshold_id Threshold ID
|
|
*
|
|
* @return The threshold temperature in K, THERMAL_THRESHOLD_DISABLE if
|
|
* disabled, -1 if error.
|
|
*/
|
|
int thermal_get_threshold(enum temp_sensor_type type, int threshold_id);
|
|
|
|
/**
|
|
* Enable/disable automatic fan speed control
|
|
*
|
|
* @param enable Enable (!=0) or disable (0) auto fan control
|
|
*
|
|
* @return EC_SUCCESS if successful, non-zero if error. */
|
|
int thermal_control_fan(int enable);
|
|
|
|
#endif /* __CROS_EC_THERMAL_H */
|