mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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d83f42bdc8
This reduces memory / code size, and gets rid of ifdefs in temp_sensor.c.
BUG=chrome-os-partner:15714
BRANCH=none
TEST=boot system and run 'ectool temps all' every few seconds
- ectool temps all
The numbers should update over time.
Change-Id: Idaac7e6e4cbc1d6689f5d3b607c623a5cc536a4f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/36940
63 lines
1.6 KiB
C
63 lines
1.6 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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/* Temperature sensor module for Chrome EC */
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#ifndef __CROS_EC_TEMP_SENSOR_H
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#define __CROS_EC_TEMP_SENSOR_H
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#include "common.h"
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#include "board.h"
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/* "enum temp_sensor_id" must be defined for each board in board.h. */
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enum temp_sensor_id;
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/* Type of temperature sensors. */
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enum temp_sensor_type {
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/* Ignore this temperature sensor. */
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TEMP_SENSOR_TYPE_IGNORED = -1,
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/* CPU temperature sensors. */
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TEMP_SENSOR_TYPE_CPU = 0,
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/* Other on-board temperature sensors. */
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TEMP_SENSOR_TYPE_BOARD,
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/* Case temperature sensors. */
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TEMP_SENSOR_TYPE_CASE,
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TEMP_SENSOR_TYPE_COUNT
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};
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struct temp_sensor_t {
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const char* name;
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/* Temperature sensor type. */
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enum temp_sensor_type type;
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/* Read sensor value in K into temp_ptr; return non-zero if error. */
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int (*read)(int idx, int *temp_ptr);
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/* Index among the same kind of sensors. */
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int idx;
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/* Delay between reading temperature and taking action about it,
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* in seconds. */
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int action_delay_sec;
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};
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#ifdef CONFIG_TEMP_SENSOR
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/*
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* Defined in board_temp_sensor.c. Must be in the same order as
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* in enum temp_sensor_id.
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*/
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extern const struct temp_sensor_t temp_sensors[TEMP_SENSOR_COUNT];
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#endif
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/**
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* Get the most recently measured temperature for the sensor.
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*
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* @param id Sensor ID
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* @param temp_ptr Destination for temperature
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*
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* @return EC_SUCCESS, or non-zero if error.
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*/
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int temp_sensor_read(enum temp_sensor_id id, int *temp_ptr);
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#endif /* __CROS_EC_TEMP_SENSOR_H */
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