blob: bc493ea75b310eca618eb1766732c534721afc18 (
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
|
/* Copyright (c) 2012 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.
*/
/* STM32-specific ADC module for Chrome EC */
#ifndef __CROS_EC_ADC_CHIP_H
#define __CROS_EC_ADC_CHIP_H
/* Data structure to define ADC channels. */
struct adc_t {
const char *name;
int factor_mul;
int factor_div;
int shift;
int channel;
};
/*
* Boards must provide this list of ADC channel definitions. This must match
* the enum adc_channel list provided by the board.
*/
extern const struct adc_t adc_channels[];
/* Minimum and maximum values returned by adc_read_channel(). */
#define ADC_READ_MIN 0
#define ADC_READ_MAX 4095
/* Just plain id mapping for code readability */
#define STM32_AIN(x) (x)
#endif /* __CROS_EC_ADC_CHIP_H */
|
