blob: 594dbc711a2d550f6470793d15790f1cc18e56b4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* Copyright 2014 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.
*/
/* TMP006 temperature sensor module for Chrome EC */
#ifndef __CROS_EC_TMP006_H
#define __CROS_EC_TMP006_H
/* Registers within the TMP006 chip */
#define TMP006_REG_VOBJ 0x00
#define TMP006_REG_TDIE 0x01
#define TMP006_REG_CONFIG 0x02
#define TMP006_REG_MANUFACTURER_ID 0xfe
#define TMP006_REG_DEVICE_ID 0xff
/* I2C address components */
#define TMP006_ADDR(PORT, REG) ((PORT << 16) + REG)
#define TMP006_PORT(ADDR) (ADDR >> 16)
#define TMP006_REG(ADDR) (ADDR & 0xffff)
struct tmp006_t {
const char *name;
int addr_flags; /* I2C address formed by TMP006_ADDR macro. */
};
/* Names and addresses of the sensors we have */
extern const struct tmp006_t tmp006_sensors[];
/**
* Get the last polled value of a sensor.
*
* @param idx Index to read. The low bit in idx indicates whether
* to read die temperature or object temperature. The
* other bits serve as internal index to tmp006 module.
* @param temp_ptr Destination for temperature in K.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int tmp006_get_val(int idx, int *temp_ptr);
#endif /* __CROS_EC_TMP006_H */
|
