adc.h

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/**************************************************************************/
#ifndef _ADC_H
#define _ADC_H

// \cond
/******************************************************************************
                   Includes section
******************************************************************************/
#include <types.h>
// \endcond

#define RESOLUTION_8_BIT  0
#define RESOLUTION_10_BIT 1

/******************************************************************************
                   Types section
******************************************************************************/
/**************************************************************************/
#if defined(AT91SAM7X256)
  typedef enum
  {
    ADC_533KSPS,
    ADC_429KSPS,
    ADC_369KSPS,
    ADC_250KSPS,
    ADC_136KSPS,
    ADC_68KSPS,
    ADC_34KSPS
  } HAL_AdcSampleRate_t;
#elif defined(ATMEGA1281) || defined(ATMEGA2561) || defined(ATMEGA1284) || defined(AT90USB1287)
  typedef enum
  {
    ADC_77KSPS,
    ADC_39KSPS,
    ADC_19200SPS,
    ADC_9600SPS,
    ADC_4800SPS
  } HAL_AdcSampleRate_t;
#endif

/**************************************************************************/
typedef enum
{
  AREF = (0 << 6),
  AVCC = (1 << 6),
  INTERNAL_1d1V = (2 << 6),
  INTERNAL_2d56V = (3 << 6)
} HAL_AdcVoltageReference_t;

/**************************************************************************/
typedef struct
{
  uint8_t resolution;
  HAL_AdcSampleRate_t sampleRate;
  HAL_AdcVoltageReference_t voltageReference;
  void *bufferPointer;
  uint16_t selectionsAmount;
  void (*callback)();
} HAL_AdcParams_t;

/**************************************************************************/
#if defined(AT91SAM7X256)
  typedef enum
  {
    HAL_ADC_CHANNEL0 = (1 <<  0),
    HAL_ADC_CHANNEL1 = (1 <<  1),
    HAL_ADC_CHANNEL2 = (1 <<  2),
    HAL_ADC_CHANNEL3 = (1 <<  3),
    HAL_ADC_CHANNEL4 = (1 <<  4),
    HAL_ADC_CHANNEL5 = (1 <<  5),
    HAL_ADC_CHANNEL6 = (1 <<  6),
    HAL_ADC_CHANNEL7 = (1 <<  7)
  } HAL_AdcChannelNumber_t;
#elif defined(ATMEGA1281) || defined(ATMEGA2561) || defined(ATMEGA1284) || defined(AT90USB1287)
  typedef enum
  {
    HAL_ADC_CHANNEL0 = 0,
    HAL_ADC_CHANNEL1 = 1,
    HAL_ADC_CHANNEL2 = 2,
    HAL_ADC_CHANNEL3 = 3,
    HAL_ADC_DIFF_CHANNEL0 = 8,
    HAL_ADC_DIFF_CHANNEL1 = 9,
    HAL_ADC_DIFF_CHANNEL2 = 10,
    HAL_ADC_DIFF_CHANNEL3 = 11,
    HAL_ADC_DIFF_CHANNEL4 = 12,
    HAL_ADC_DIFF_CHANNEL5 = 13,
    HAL_ADC_DIFF_CHANNEL6 = 14,
    HAL_ADC_DIFF_CHANNEL7 = 15
  } HAL_AdcChannelNumber_t;
#endif

/******************************************************************************
                   Prototypes section
******************************************************************************/
/**************************************************************************/
int HAL_OpenAdc(HAL_AdcParams_t *param);

/**************************************************************************/
int HAL_ReadAdc(HAL_AdcChannelNumber_t channel);

/**************************************************************************/
int HAL_CloseAdc(void);

#endif /* _ADC_H */
// eof adc.h

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