mirror of
https://github.com/Telecominfraproject/OpenCellular.git
synced 2025-12-28 02:35:28 +00:00
1b14b2c922
This adds basic ADC support for multiple channel conversion.
BUG=chrome-os-partner:14316
BRANCH=none
TEST=1. Boot on snow.
2. Use keyboard signal as input. Check read value changes as input
signal changes.
Change-Id: I3c15c37446fa9273d098f6d581573c11ced45b5e
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/33883
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
33 lines
663 B
C
33 lines
663 B
C
/* 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.
|
|
*/
|
|
|
|
/* ADC interface for Chrome EC */
|
|
|
|
#ifndef __CROS_EC_ADC_H
|
|
#define __CROS_EC_ADC_H
|
|
|
|
#include "common.h"
|
|
#include "board.h"
|
|
|
|
/* Data structure to define ADC channels. */
|
|
struct adc_t
|
|
{
|
|
const char* name;
|
|
int sequencer;
|
|
int factor_mul;
|
|
int factor_div;
|
|
int shift;
|
|
int channel;
|
|
int flag;
|
|
};
|
|
|
|
/* Read ADC channel. */
|
|
int adc_read_channel(enum adc_channel ch);
|
|
|
|
/* Read all ADC channels. Return non-zero on error. */
|
|
int adc_read_all_channels(int *data);
|
|
|
|
#endif /* __CROS_EC_ADC_H */
|