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/* Copyright 2016 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.
*/
#ifndef __CROS_EC_TMP112_H
#define __CROS_EC_TMP112_H
#include "i2c.h"
#define TMP112_I2C_ADDR_FLAGS0 (0x48 | I2C_FLAG_BIG_ENDIAN)
#define TMP112_I2C_ADDR_FLAGS1 (0x49 | I2C_FLAG_BIG_ENDIAN)
#define TMP112_I2C_ADDR_FLAGS2 (0x4A | I2C_FLAG_BIG_ENDIAN)
#define TMP112_I2C_ADDR_FLAGS3 (0x4B | I2C_FLAG_BIG_ENDIAN)
#define TMP112_REG_TEMP 0x00
#define TMP112_REG_CONF 0x01
#define TMP112_REG_HYST 0x02
#define TMP112_REG_MAX 0x03
/*
* I2C port and address information for all the board TMP112 sensors should be
* defined in an array of the following structures, with an enum tmp112_sensor
* indexing the array. The enum tmp112_sensor shall end with a TMP112_COUNT
* defining the maximum number of sensors for the board.
*/
struct tmp112_sensor_t {
int i2c_port;
int i2c_addr_flags;
};
extern const struct tmp112_sensor_t tmp112_sensors[];
/**
* Get the last polled value of a sensor.
*
* @param idx Index to read, from board's enum tmp112_sensor
* definition
*
* @param temp_k_ptr Destination for temperature in K.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int tmp112_get_val_k(int idx, int *temp_k_ptr);
/**
* Get the last polled value of a sensor.
*
* @param idx Index to read, from board's enum tmp112_sensor
* definition
*
* @param temp_mk_ptr Destination for temperature in mK.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int tmp112_get_val_mk(int idx, int *temp_mk_ptr);
/**
* Init the sensors. Note, this will run automatically on HOOK_INIT, but is
* made available for boards which may not always power the sensor in all
* states.
*/
void tmp112_init(void);
#endif /* __CROS_EC_TMP112_H */
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