blob: 00f7fec8acac15f1e74fd013e7bbe8f84e64c57c (
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
|
/* Copyright 2019 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* G753 temperature sensor module for Chrome EC */
#ifndef __CROS_EC_G753_H
#define __CROS_EC_G753_H
#define G753_I2C_ADDR_FLAGS 0x48
#define G753_IDX_INTERNAL 0
/* G753 register */
#define G753_TEMP_LOCAL 0x00
#define G753_STATUS 0x02
#define G753_CONFIGURATION_R 0x03
#define G753_CONVERSION_RATE_R 0x04
#define G753_LOCAL_TEMP_HIGH_LIMIT_R 0x05
#define G753_CONFIGURATION_W 0x09
#define G753_CONVERSION_RATE_W 0x0A
#define G753_LOCAL_TEMP_HIGH_LIMIT_W 0x0B
#define G753_ONESHOT 0x0F
#define G753_Customer_Data_Log_Register_1 0x2D
#define G753_Customer_Data_Log_Register_2 0x2E
#define G753_Customer_Data_Log_Register_3 0x2F
#define G753_ALERT_MODE 0xBF
#define G753_CHIP_ID 0xFD
#define G753_VENDOR_ID 0xFE
#define G753_DEVICE_ID 0xFF
/* Config register bits */
#define G753_CONFIGURATION_STANDBY BIT(6)
#define G753_CONFIGURATION_ALERT_MASK BIT(7)
/* Status register bits */
#define G753_STATUS_LOCAL_TEMP_HIGH_ALARM BIT(6)
#define G753_STATUS_BUSY BIT(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 g753_get_val(int idx, int *temp_ptr);
#endif /* __CROS_EC_G753_H */
|
