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https://github.com/Telecominfraproject/OpenCellular.git
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059c633a27
Implement TMP006 object temperature calculation. Also add a console command to calculate temperature with manually entered data. BUG=chrome-os-partner:7801 TEST=In console, "tempremote 29715 -105000 6390" gives 285.00K. Change-Id: I0f9193fb970fdc36566399e7083e73ab58965a85
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* Copyright (c) 2011 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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struct temp_sensor_t {
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const char* name;
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enum temp_sensor_id id;
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/* Sensor address. Used by read and print functions. */
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int addr;
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/* Read sensor value and return temperature in K. */
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int (*read)(const struct temp_sensor_t* self);
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/* Print debug info on console. */
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int (*print)(const struct temp_sensor_t* self);
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};
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/* Dummy value to put in "addr" field in temp_sensor_t if we don't need to
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* specify address.
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*/
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#define TEMP_SENSOR_NO_ADDR 0
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/* Dummy value to put in "print" field in temp_sensor_t if we don't have debug
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* function for a sensor.
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*/
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#define TEMP_SENSOR_NO_PRINT 0
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/* Initializes the module. */
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int temp_sensor_init(void);
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/* Returns the most recently measured temperature for the sensor in K,
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* or -1 if error. */
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int temp_sensor_read(enum temp_sensor_id id);
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#define TMP006_ADDR(PORT,REG) ((PORT << 16) + REG)
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#define TMP006_PORT(ADDR) (ADDR >> 16)
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#define TMP006_REG(ADDR) (ADDR & 0xffff)
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/* Read TI TMP006 die temperature sensor. Return temperature in K. */
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int temp_sensor_tmp006_read_die_temp(const struct temp_sensor_t* sensor);
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/* Read TI TMP006 object temperature sensor. Return temperature in K. */
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int temp_sensor_tmp006_read_object_temp(const struct temp_sensor_t* sensor);
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/* Configure TMP006 DRDY pin. */
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void temp_sensor_tmp006_config(const struct temp_sensor_t* sensor);
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/* Print debug messages for TMP006. */
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int temp_sensor_tmp006_print(const struct temp_sensor_t* sensor);
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#endif /* __CROS_EC_TEMP_SENSOR_H */
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