34 lines
833 B
C
34 lines
833 B
C
/* Copyright 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.
|
|
*/
|
|
|
|
/* MEC1322-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 1023
|
|
|
|
/* Just plain id mapping for code readability */
|
|
#define MEC1322_ADC_CH(x) (x)
|
|
|
|
#endif /* __CROS_EC_ADC_CHIP_H */
|