/home/travis/build/lis-epfl/MAVRIC_Library/hal/avr32/serial_avr32.hpp

/*******************************************************************************
 * Copyright (c) 2009-2016, MAV'RIC Development Team
 * All rights reserved.
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 * 1. Redistributions of source code must retain the above copyright notice,
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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/*******************************************************************************
 * \file    serial_avr32.hpp
 *
 * \author  MAV'RIC Team
 *
 * \brief   Implementation of serial peripheral for avr32
 *
 ******************************************************************************/

#ifndef SERIAL_AVR32_HPP_
#define SERIAL_AVR32_HPP_

#include "hal/common/serial.hpp"
#include "util/buffer.hpp"

extern "C"
{
#include "libs/asf/avr32/drivers/usart/usart.h"
}

typedef enum
{
    AVR32_SERIAL_0          = 0,
    AVR32_SERIAL_1          = 1,
    AVR32_SERIAL_2          = 2,
    AVR32_SERIAL_3          = 3,
    AVR32_SERIAL_4          = 4,
    AVR32_SERIAL_MAX_NUMBER = 5,
} serial_avr32_devices_t;


typedef enum
{
    AVR32_SERIAL_OFF    = 0,
    AVR32_SERIAL_IN     = 1,
    AVR32_SERIAL_OUT    = 2,
    AVR32_SERIAL_IN_OUT = 3,
} serial_avr32_mode_t;


typedef struct
{
    uint8_t  pin;                       
    uint8_t  function;                  
} serial_avr32_gpio_map_t;

typedef struct
{
    serial_avr32_devices_t  serial_device;
    serial_avr32_mode_t     mode;
    usart_options_t         options;
    serial_avr32_gpio_map_t rx_pin_map;
    serial_avr32_gpio_map_t tx_pin_map;
} serial_avr32_conf_t;


class Serial_avr32: public Serial
{
public:

    Serial_avr32(serial_avr32_conf_t config);


    bool init(void);


    uint32_t readable(void);


    uint32_t writeable(void);


    void flush(void);


    bool attach(serial_interrupt_callback_t func);


    bool write(const uint8_t* bytes, const uint32_t size = 1);


    bool read(uint8_t* bytes, const uint32_t size = 1);


private:
    serial_avr32_conf_t         config_;            
    volatile avr32_usart_t*     uart_;              
    Buffer_T<1024>            tx_buffer_;         
    // Buffer                       rx_buffer_;         ///< Reception buffer
    Buffer_T<2048>            rx_buffer_;         

    static Serial_avr32*        handlers_[AVR32_SERIAL_MAX_NUMBER];     


    void irq_handler(void);


    serial_interrupt_callback_t irq_callback;


    static void irq0(void);
    static void irq1(void);
    static void irq2(void);
    static void irq3(void);
    static void irq4(void);
};


#endif /* SERIAL_AVR32_HPP_ */