sam9260 adc 头文件

/*
 * driver/char/at91_adc.h
 *
 * Copyright (C) 2007 Embedall Technology Co., Ltd.
 *
 * Analog-to-digital Converter(ADC) Driver.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#ifndef AT91_ADC_H_
#define AT91_ADC_H_

#include <linux/ioctl.h>

#define ADC_VREF            (3.3)

#define ADCCTL_RESET        _IO ('D', 0)
#define ADCCTL_START        _IO ('D', 1)
#define ADCCTL_SETMODE      _IOW('D', 2, long)
#define ADCCTL_GETMODE      _IOR('D', 3, long)
#define ADCCTL_GETDATA      _IOR('D', 4, int)
#define ADCCTL_GETCNT       _IOR('D', 5, int)
#define ADCCTL_GETSTATUS    _IOR('D', 6, int)

struct adc_mode 
{
	unsigned int   trigger;
#define ADC_TRIGGER_SOFT   0x00
#define ADC_TRIGGER_TIMER  0x01
#define ADC_TRIGGER_EXT    0x08
	unsigned int   trigger_time;
	unsigned int   resolution;
#define ADC_M_8BIT  0x01
#define ADC_M_10BIT 0x00
	unsigned int   sleep_mode;
	unsigned int   adc_clock;
	unsigned int   startup_time;
	unsigned int   sample_time;
};

#endif