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/* Copyright (c) 2013 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.
*/
/* TMP432 temperature sensor module for Chrome EC */
#ifndef __CROS_EC_TMP432_H
#define __CROS_EC_TMP432_H
#define TMP432_I2C_ADDR 0x98 /* 7-bit address is 0x4C */
#define TMP432_IDX_LOCAL 0
#define TMP432_IDX_REMOTE1 1
#define TMP432_IDX_REMOTE2 2
/* Chip-specific registers */
#define TMP432_LOCAL 0x00
#define TMP432_REMOTE1 0x01
#define TMP432_STATUS 0x02
#define TMP432_CONFIGURATION1_R 0x03
#define TMP432_CONVERSION_RATE_R 0x04
#define TMP432_LOCAL_HIGH_LIMIT_R 0x05
#define TMP432_LOCAL_LOW_LIMIT_R 0x06
#define TMP432_REMOTE1_HIGH_LIMIT_R 0x07
#define TMP432_REMOTE1_LOW_LIMIT_R 0x08
#define TMP432_CONFIGURATION1_W 0x09
#define TMP432_CONVERSION_RATE_W 0x0a
#define TMP432_LOCAL_HIGH_LIMIT_W 0x0b
#define TMP432_LOCAL_LOW_LIMIT_W 0x0c
#define TMP432_REMOTE1_HIGH_LIMIT_W 0x0d
#define TMP432_REMOTE1_LOW_LIMIT_W 0x0e
#define TMP432_ONESHOT 0x0f
#define TMP432_REMOTE1_EXTD 0x10
#define TMP432_REMOTE1_HIGH_LIMIT_EXTD 0x13
#define TMP432_REMOTE1_LOW_LIMIT_EXTD 0x14
#define TMP432_REMOTE2_HIGH_LIMIT_R 0x15
#define TMP432_REMOTE2_HIGH_LIMIT_W 0x15
#define TMP432_REMOTE2_LOW_LIMIT_R 0x16
#define TMP432_REMOTE2_LOW_LIMIT_W 0x16
#define TMP432_REMOTE2_HIGH_LIMIT_EXTD 0x17
#define TMP432_REMOTE2_LOW_LIMIT_EXTD 0x18
#define TMP432_REMOTE1_THERM_LIMIT 0x19
#define TMP432_REMOTE2_THERM_LIMIT 0x1a
#define TMP432_STATUS_FAULT 0x1b
#define TMP432_CHANNEL_MASK 0x1f
#define TMP432_LOCAL_THERM_LIMIT 0x20
#define TMP432_THERM_HYSTERESIS 0x21
#define TMP432_CONSECUTIVE_ALERT 0x22
#define TMP432_REMOTE2 0x23
#define TMP432_REMOTE2_EXTD 0x24
#define TMP432_BETA_RANGE_CH1 0x25
#define TMP432_BETA_RANGE_CH2 0x26
#define TMP432_NFACTOR_REMOTE1 0x27
#define TMP432_NFACTOR_REMOTE2 0x28
#define TMP432_LOCAL_EXTD 0x29
#define TMP432_STATUS_LIMIT_HIGH 0x35
#define TMP432_STATUS_LIMIT_LOW 0x36
#define TMP432_STATUS_THERM 0x37
#define TMP432_LOCAL_HIGH_LIMIT_EXTD 0x3d
#define TMP432_LOCAL_LOW_LIMIT_EXTD 0x3e
#define TMP432_CONFIGURATION2_R 0x3f
#define TMP432_CONFIGURATION2_W 0x3f
#define TMP432_RESET_W 0xfc
#define TMP432_DEVICE_ID 0xfd
#define TMP432_MANUFACTURER_ID 0xfe
/* Config register bits */
#define TMP432_CONFIG1_TEMP_RANGE (1 << 2)
#define TMP432_CONFIG1_MODE (1 << 5)
#define TMP432_CONFIG1_RUN_L (1 << 6)
#define TMP432_CONFIG1_ALERT_MASK_L (1 << 7)
#define TMP432_CONFIG2_RESISTANCE_CORRECTION (1 << 2)
#define TMP432_CONFIG2_LOCAL_ENABLE (1 << 3)
#define TMP432_CONFIG2_REMOTE1_ENABLE (1 << 4)
#define TMP432_CONFIG2_REMOTE2_ENABLE (1 << 5)
/* Status register bits */
#define TMP432_STATUS_TEMP_THERM_ALARM (1 << 1)
#define TMP432_STATUS_OPEN (1 << 2)
#define TMP432_STATUS_TEMP_LOW_ALARM (1 << 3)
#define TMP432_STATUS_TEMP_HIGH_ALARM (1 << 4)
#define TMP432_STATUS_BUSY (1 << 7)
/**
* Get the last polled value of a sensor.
*
* @param idx Index to read. Idx indicates whether to read die
* temperature or external temperature.
* @param temp_ptr Destination for temperature in K.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int tmp432_get_val(int idx, int *temp_ptr);
#endif /* __CROS_EC_TMP432_H */
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