/*
 * Authors (alphabetical order)
 * - Andre Bernet <bernet.andre@gmail.com>
 * - Andreas Weitl
 * - Bertrand Songis <bsongis@gmail.com>
 * - Bryan J. Rentoul (Gruvin) <gruvin@gmail.com>
 * - Cameron Weeks <th9xer@gmail.com>
 * - Erez Raviv
 * - Gabriel Birkus
 * - Jean-Pierre Parisy
 * - Karl Szmutny
 * - Michael Blandford
 * - Michal Hlavinka
 * - Pat Mackenzie
 * - Philip Moss
 * - Rob Thomson
 * - Romolo Manfredini <romolo.manfredini@gmail.com>
 * - Thomas Husterer
 *
 * open9x is based on code named
 * gruvin9x by Bryan J. Rentoul: http://code.google.com/p/gruvin9x/,
 * er9x by Erez Raviv: http://code.google.com/p/er9x/,
 * and the original (and ongoing) project by
 * Thomas Husterer, th9x: http://code.google.com/p/th9x/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program 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.
 *
 */

#include "../open9x.h"

void uartInit(uint32_t baudrate)
{
  USART_InitTypeDef USART_InitStructure;
  GPIO_InitTypeDef GPIO_InitStructure;

  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIO_UART, ENABLE);
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART_DEBUG, ENABLE);

  GPIO_PinAFConfig(GPIO_UART, GPIO_PinSource_UART_RX, GPIO_AF_UART);
  GPIO_PinAFConfig(GPIO_UART, GPIO_PinSource_UART_TX, GPIO_AF_UART);

  GPIO_InitStructure.GPIO_Pin = GPIO_PIN_UART_TX | GPIO_PIN_UART_RX;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_Init(GPIO_UART, &GPIO_InitStructure);
  
  USART_InitStructure.USART_BaudRate = baudrate;
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;
  USART_InitStructure.USART_Parity = USART_Parity_No;
  USART_InitStructure.USART_Mode = USART_Mode_Tx;
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
  
  USART_Init(UART_DEBUG, &USART_InitStructure);
  USART_Cmd(UART_DEBUG, ENABLE);
}

void uartPutc(const char c)
{
  USART_SendData(UART_DEBUG, c);

  /* Wait for end of previous transfer */
  while (USART_GetFlagStatus(UART_DEBUG, USART_FLAG_TC) == RESET);
}