/*
  Copyright (c) 2016 Arduino LLC.  All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#pragma once

#include <inttypes.h>
#include "Stream.h"

// XXX: Those constants should be defined as const int / enums?
// XXX: shall we use namespaces too?
#define SERIAL_PARITY_EVEN   (0x1ul)
#define SERIAL_PARITY_ODD    (0x2ul)
#define SERIAL_PARITY_NONE   (0x3ul)
#define SERIAL_PARITY_MARK   (0x4ul)
#define SERIAL_PARITY_SPACE  (0x5ul)
#define SERIAL_PARITY_MASK   (0xFul)

#define SERIAL_STOP_BIT_1    (0x10ul)
#define SERIAL_STOP_BIT_1_5  (0x20ul)
#define SERIAL_STOP_BIT_2    (0x30ul)
#define SERIAL_STOP_BIT_MASK (0xF0ul)

#define SERIAL_DATA_5        (0x100ul)
#define SERIAL_DATA_6        (0x200ul)
#define SERIAL_DATA_7        (0x300ul)
#define SERIAL_DATA_8        (0x400ul)
#define SERIAL_DATA_MASK     (0xF00ul)

#define SERIAL_5N1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_NONE  | SERIAL_DATA_5)
#define SERIAL_6N1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_NONE  | SERIAL_DATA_6)
#define SERIAL_7N1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_NONE  | SERIAL_DATA_7)
#define SERIAL_8N1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_NONE  | SERIAL_DATA_8)
#define SERIAL_5N2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_NONE  | SERIAL_DATA_5)
#define SERIAL_6N2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_NONE  | SERIAL_DATA_6)
#define SERIAL_7N2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_NONE  | SERIAL_DATA_7)
#define SERIAL_8N2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_NONE  | SERIAL_DATA_8)
#define SERIAL_5E1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_EVEN  | SERIAL_DATA_5)
#define SERIAL_6E1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_EVEN  | SERIAL_DATA_6)
#define SERIAL_7E1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_EVEN  | SERIAL_DATA_7)
#define SERIAL_8E1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_EVEN  | SERIAL_DATA_8)
#define SERIAL_5E2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_EVEN  | SERIAL_DATA_5)
#define SERIAL_6E2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_EVEN  | SERIAL_DATA_6)
#define SERIAL_7E2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_EVEN  | SERIAL_DATA_7)
#define SERIAL_8E2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_EVEN  | SERIAL_DATA_8)
#define SERIAL_5O1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_ODD   | SERIAL_DATA_5)
#define SERIAL_6O1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_ODD   | SERIAL_DATA_6)
#define SERIAL_7O1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_ODD   | SERIAL_DATA_7)
#define SERIAL_8O1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_ODD   | SERIAL_DATA_8)
#define SERIAL_5O2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_ODD   | SERIAL_DATA_5)
#define SERIAL_6O2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_ODD   | SERIAL_DATA_6)
#define SERIAL_7O2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_ODD   | SERIAL_DATA_7)
#define SERIAL_8O2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_ODD   | SERIAL_DATA_8)
#define SERIAL_5M1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_MARK  | SERIAL_DATA_5)
#define SERIAL_6M1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_MARK  | SERIAL_DATA_6)
#define SERIAL_7M1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_MARK  | SERIAL_DATA_7)
#define SERIAL_8M1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_MARK  | SERIAL_DATA_8)
#define SERIAL_5M2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_MARK  | SERIAL_DATA_5)
#define SERIAL_6M2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_MARK  | SERIAL_DATA_6)
#define SERIAL_7M2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_MARK  | SERIAL_DATA_7)
#define SERIAL_8M2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_MARK  | SERIAL_DATA_8)
#define SERIAL_5S1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_SPACE | SERIAL_DATA_5)
#define SERIAL_6S1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_SPACE | SERIAL_DATA_6)
#define SERIAL_7S1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_SPACE | SERIAL_DATA_7)
#define SERIAL_8S1           (SERIAL_STOP_BIT_1 | SERIAL_PARITY_SPACE | SERIAL_DATA_8)
#define SERIAL_5S2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_SPACE | SERIAL_DATA_5)
#define SERIAL_6S2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_SPACE | SERIAL_DATA_6)
#define SERIAL_7S2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_SPACE | SERIAL_DATA_7)
#define SERIAL_8S2           (SERIAL_STOP_BIT_2 | SERIAL_PARITY_SPACE | SERIAL_DATA_8)

class HardwareSerial : public Stream
{
  public:
    void begin(unsigned long);
    void begin(unsigned long baudrate, uint16_t config);
    void end();
    int available(void) override;
    int peek(void) override;
    int read(void) override;
    void flush(void);
    int availableForWrite() override;
    size_t write(uint8_t) override;
    size_t write(const uint8_t *buffer, size_t size) override;
    size_t write(const char * buffer, size_t size)
    {
        return write((uint8_t*) buffer, size);
    }
    size_t write(const char *str)
    {
        return write((uint8_t*) str, strlen(str));
    }
    inline size_t write(unsigned long n)
    {
        return write((uint8_t) n);
    }
    inline size_t write(long n)
    {
        return write((uint8_t) n);
    }
    inline size_t write(unsigned int n)
    {
        return write((uint8_t) n);
    }
    inline size_t write(int n)
    {
        return write((uint8_t) n);
    }
    operator bool();
};

// XXX: Are we keeping the serialEvent API?
extern void serialEventRun(void) __attribute__((weak));

extern HardwareSerial Serial;