blob: e79ac0e97a833fa130cf288dca3c9e1f38d2cf0e (
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/* Copyright 2021 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __CROS_EC_PCT2075_H
#define __CROS_EC_PCT2075_H
#include "i2c.h"
#define PCT2075_I2C_ADDR_FLAGS0 (0x48 | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS1 (0x49 | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS2 (0x4A | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS3 (0x4B | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS4 (0x4C | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS5 (0x4D | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS6 (0x4E | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_I2C_ADDR_FLAGS7 (0x4F | I2C_FLAG_BIG_ENDIAN)
#define PCT2075_REG_TEMP 0x00
#define PCT2075_REG_CONF 0x01
#define PCT2075_REG_THYST 0x02
#define PCT2075_REG_TOS 0x03
/*
* I2C port and address information for all the board PCT2075 sensors should be
* defined in an array of the following structures, with an enum PCT2075_sensor
* indexing the array. The enum PCT2075_sensor shall end with a PCT2075_COUNT
* defining the maximum number of sensors for the board.
*/
struct pct2075_sensor_t {
int i2c_port;
int i2c_addr_flags;
};
extern const struct pct2075_sensor_t pct2075_sensors[];
/**
* Get the last polled value of a sensor.
*
* @param idx Index to read, from board's enum PCT2075_sensor
* definition
*
* @param temp_k_ptr Destination for temperature in K.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int pct2075_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 PCT2075_sensor
* definition
*
* @param temp_mk_ptr Destination for temperature in mK.
*
* @return EC_SUCCESS if successful, non-zero if error.
*/
int pct2075_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 pct2075_init(void);
#endif /* __CROS_EC_PCT2075_H */
|
