/*
 *  spreadspace stm8 utils
 *
 *
 *  Copyright (C) 2014-2016 Christian Pointner <equinox@spreadspace.org>
 *
 *  This file is part of spreadspace stm8 utils.
 *
 *  spreadspace stm8 utils 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 3 of the License, or
 *  any later version.
 *
 *  spreadspace stm8 utils 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with spreadspace stm8 utils. If not, see <http://www.gnu.org/licenses/>.
 */

#include <stm8s.h>

#include "serialio.h"


void putchar(char c) {
#if defined(SERIAL_IO_UART1)
  while (UART1_GetFlagStatus(UART1_FLAG_TXE) == RESET);
  UART1_SendData8(c);
#elif defined(SERIAL_IO_UART2)
  while (UART2_GetFlagStatus(UART2_FLAG_TXE) == RESET);
  UART2_SendData8(c);
#else
  #error "serial-io library is not usable for this board"
#endif
}

char getchar(void) {
#if defined(SERIAL_IO_UART1)
  return UART1_ReceiveData8();
#elif defined(SERIAL_IO_UART2)
  return UART2_ReceiveData8();
#else
  #error "serial-io library is not usable for this board"
#endif
}

void serialio_init(const uint32_t baudrate)
{
#if defined(SERIAL_IO_UART1)
  UART1_Init(baudrate, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE);
#elif defined(SERIAL_IO_UART2)
  UART2_Init(baudrate, UART2_WORDLENGTH_8D, UART2_STOPBITS_1, UART2_PARITY_NO, UART2_SYNCMODE_CLOCK_DISABLE, UART2_MODE_TXRX_ENABLE);
#else
  #error "serial-io library is not usable for this board"
#endif
}

void serialio_task(void)
{
}

uint8_t serialio_bytes_received(void)
{
#if defined(SERIAL_IO_UART1)
  return (UART1_GetFlagStatus(UART1_FLAG_RXNE) == RESET) ? 0 : 1;
#elif defined(SERIAL_IO_UART2)
  return (UART2_GetFlagStatus(UART2_FLAG_RXNE) == RESET) ? 0 : 1;
#else
  #error "serial-io library is not usable for this board"
#endif
}