#include "stm32f3_hal.h"
#include "stm32f3_hal_lowlevel.h"
#include "stm32f3xx_hal_rcc.h"
#include "stm32f3xx_hal_gpio.h"
#include "stm32f3xx_hal_dma.h"
#include "stm32f3xx_hal_uart.h"

UART_HandleTypeDef UartHandle;


void platform_init(void)
{
  //HAL_Init();

  #ifdef USE_INTERNAL_CLK
     RCC_OscInitTypeDef RCC_OscInitStruct;
     RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
     RCC_OscInitStruct.HSEState       = RCC_HSE_OFF;
     RCC_OscInitStruct.HSIState       = RCC_HSI_ON;
     RCC_OscInitStruct.PLL.PLLSource  = RCC_PLL_NONE;
     HAL_RCC_OscConfig(&RCC_OscInitStruct);

     RCC_ClkInitTypeDef RCC_ClkInitStruct;
     RCC_ClkInitStruct.ClockType      = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
     RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_HSI;
     RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
     RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
     uint32_t flash_latency = 0;
     HAL_RCC_ClockConfig(&RCC_ClkInitStruct, flash_latency);
  #else
     RCC_OscInitTypeDef RCC_OscInitStruct;
     RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI;
     RCC_OscInitStruct.HSEState       = RCC_HSE_BYPASS;
     RCC_OscInitStruct.HSIState       = RCC_HSI_OFF;
     RCC_OscInitStruct.PLL.PLLSource  = RCC_PLL_NONE;
     HAL_RCC_OscConfig(&RCC_OscInitStruct);

     RCC_ClkInitTypeDef RCC_ClkInitStruct;
     RCC_ClkInitStruct.ClockType      = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
     RCC_ClkInitStruct.SYSCLKSource   = RCC_SYSCLKSOURCE_HSE;
     RCC_ClkInitStruct.AHBCLKDivider  = RCC_SYSCLK_DIV1;
     RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
     RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
     uint32_t flash_latency = 0;
     HAL_RCC_ClockConfig(&RCC_ClkInitStruct, flash_latency);
  #endif




#if (PLATFORM==CWLITEARM)
  __HAL_RCC_GPIOC_CLK_ENABLE();
  GPIO_InitTypeDef GpioInit;
  GpioInit.Pin       = GPIO_PIN_13 | GPIO_PIN_14;
  GpioInit.Mode      = GPIO_MODE_OUTPUT_PP;
  GpioInit.Pull      = GPIO_NOPULL;
  GpioInit.Speed     = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(GPIOC, &GpioInit);

  HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, SET);
  HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, SET);
#endif
}

void init_uart(void)
{
  GPIO_InitTypeDef GpioInit;
  GpioInit.Pin       = GPIO_PIN_9 | GPIO_PIN_10;
  GpioInit.Mode      = GPIO_MODE_AF_PP;
  GpioInit.Pull      = GPIO_PULLUP;
  GpioInit.Speed     = GPIO_SPEED_FREQ_HIGH;
  GpioInit.Alternate = GPIO_AF7_USART1;
  __GPIOA_CLK_ENABLE();
  HAL_GPIO_Init(GPIOA, &GpioInit);

  UartHandle.Instance        = USART1;
  #if SS_VER==SS_VER_2_1
  UartHandle.Init.BaudRate   = 230400;
  #else
  UartHandle.Init.BaudRate   = 38400;
  #endif
  UartHandle.Init.WordLength = UART_WORDLENGTH_8B;
  UartHandle.Init.StopBits   = UART_STOPBITS_1;
  UartHandle.Init.Parity     = UART_PARITY_NONE;
  UartHandle.Init.HwFlowCtl  = UART_HWCONTROL_NONE;
  UartHandle.Init.Mode       = UART_MODE_TX_RX;
  __USART1_CLK_ENABLE();
  HAL_UART_Init(&UartHandle);
}

void trigger_setup(void)
{
  __HAL_RCC_GPIOA_CLK_ENABLE();

  GPIO_InitTypeDef GpioInit;
  GpioInit.Pin       = GPIO_PIN_12;
  GpioInit.Mode      = GPIO_MODE_OUTPUT_PP;
  GpioInit.Pull      = GPIO_NOPULL;
  GpioInit.Speed     = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(GPIOA, &GpioInit);

  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, RESET);
}

void trigger_high(void)
{
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, SET);
}

void trigger_low(void)
{
  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_12, RESET);
}

char getch(void)
{
  uint8_t d;
  while (HAL_UART_Receive(&UartHandle, &d, 1, 5000) != HAL_OK)
    USART1->ICR |= (1 << 3);
  //putch(d);
  return d;
}

void putch(char c)
{
  uint8_t d  = c;
  HAL_UART_Transmit(&UartHandle,  &d, 1, 5000);
}
#if (PLATFORM==CWLITEARM)
void change_err_led(int x)
{
    if (x)
         HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, RESET);
    else
         HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, SET);
}

void change_ok_led(int x)
{
     if (x)
          HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, RESET);
     else
          HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, SET);
}
#else
void change_err_led(int x)
{
}

void change_ok_led(int x)
{
}
#endif //PLATFORM==CWLITEARM