/home/travis/build/lis-epfl/MAVRIC_Library/hal/avr32/dac_dma.h

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/*******************************************************************************
 * \file dac_dma.h
 *
 * \author MAV'RIC Team
 * \author Felix Schill
 *
 * \brief This file is the driver for the Internal DAC
 * (Digital to Analog Conversion) using the DMA
 *
 ******************************************************************************/


#ifndef DAC_DMA_H
#define DAC_DMA_H

#ifdef __cplusplus
extern "C" {
#endif

#include <avr32/io.h>
#include "libs/asf/avr32/utils/preprocessor/preprocessor.h"
#include <stdint.h>
#include "libs/asf/common/boards/user_board/user_board.h"
#include "libs/asf/avr32/drivers/dacifb/dacifb.h"

#define DAC_MODE_DMA    DACIFB_TRIGGER_MODE_EVENT                       ///< Define the DAC mode in respect to the DMA usage
#define DAC_MODE_MANUAL DACIFB_TRIGGER_MODE_MANUAL                      ///< Define The DAC mode in manual usage

#define DAC_SAMPLE_CLOCK_DIVIDER 10                                     ///< Define the Clock Divider for the sampling of the DAC

#  define DAC_AUDIO_INSTANCE            0                               ///< Define the audio instance for the DAC
#  define DAC_AUDIO_CHANNEL             DACIFB_CHANNEL_SELECTION_A      ///< Define the audio channel for the DAC
#  define DAC_AUDIO_PIN                 AVR32_DAC1A_PIN                 ///< Define the audio pin used for the DAC
#  define DAC_AUDIO_FUNCTION            AVR32_DAC1A_PIN                 ///< Associate the audio function with the pin used for the DAC 
#  define PDCA_CHANNEL_DAC              4                               ///< Define the channel number for the DAC
#  define AVR32_PDCA_PID_DAC_TX         AVR32_PDCA_PID_DACIFB0_CHA_TX   ///< Select peripheral - data are transmit on the DAC output
#  define DAC_PRESCALER_CLOCK           5000000                         ///< Prescaler Clock of the DAC

void dac_dma_init(int32_t trigger_mode);

void dac_dma_load_buffer(uint16_t* samples, int32_t from_sample, int32_t to_sample, int32_t repeat);

void dac_dma_play(void);

/*
void DAC_pause();
void DAC_resume();
int32_t  DAC_is_finished();
*/

void dac_dma_set_value(int32_t output);

#ifdef __cplusplus
}
#endif

#endif