/**
  ******************************************************************************
  * File Name          : main.c
  * Description        : Main program body
  ******************************************************************************
  *
  * Copyright (c) 2017 STMicroelectronics International N.V. 
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without 
  * modification, are permitted, provided that the following conditions are met:
  *
  * 1. Redistribution of source code must retain the above copyright notice, 
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of STMicroelectronics nor the names of other 
  *    contributors to this software may be used to endorse or promote products 
  *    derived from this software without specific written permission.
  * 4. This software, including modifications and/or derivative works of this 
  *    software, must execute solely and exclusively on microcontroller or
  *    microprocessor devices manufactured by or for STMicroelectronics.
  * 5. Redistribution and use of this software other than as permitted under 
  *    this license is void and will automatically terminate your rights under 
  *    this license. 
  *
  * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS" 
  * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT 
  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
  * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
  * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT 
  * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f4xx_hal.h"
#include "cmsis_os.h"


/* Private variables ---------------------------------------------------------*/
osTimerId myTimer01Handle;
osThreadId LEDThread1Handle, LEDThread2Handle;
osMessageQId osQueue;
osSemaphoreId osSemaphore;
uint32_t ProducerValue = 0, ConsumerValue = 0;


/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
void Callback01(void const * argument);
static void MessageQueueProducer (void const *argument);
static void MessageQueueConsumer (void const *argument);
static void LED_Thread1(void const *argument);
static void LED_Thread2(void const *argument);


/* Private function prototypes -----------------------------------------------*/



int main(void)
{
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();

  /* Create the timer(s) */
  osTimerDef(myTimer01, Callback01);
  myTimer01Handle = osTimerCreate(osTimer(myTimer01), osTimerPeriodic, NULL);
	osTimerStart(myTimer01Handle, 500);
	
	/* Define used semaphore */
  osSemaphoreDef(SEM);
  osSemaphore = osSemaphoreCreate(osSemaphore(SEM) , 1);
  osSemaphoreRelease(osSemaphore);
	
	/* Create message communication */
	osMessageQDef(osqueue, 1, uint16_t);
  osQueue = osMessageCreate (osMessageQ(osqueue), NULL);
  
	/* Create a pairs of thread for message communication */
	osThreadDef(QCons, MessageQueueConsumer, osPriorityBelowNormal, 0, configMINIMAL_STACK_SIZE);
  osThreadDef(QProd, MessageQueueProducer, osPriorityBelowNormal, 0, configMINIMAL_STACK_SIZE);
	osThreadCreate(osThread(QCons), NULL);
  osThreadCreate(osThread(QProd), NULL);
	
	/* Create a pairs of thread to light up BLUE LED */
  osThreadDef(ThreadA, LED_Thread1, osPriorityLow, 0, configMINIMAL_STACK_SIZE);
  osThreadDef(ThreadB, LED_Thread2, osPriorityIdle, 0, configMINIMAL_STACK_SIZE);
  LEDThread1Handle = osThreadCreate (osThread(ThreadA), (void *) osSemaphore);
  LEDThread2Handle = osThreadCreate (osThread(ThreadB), (void *) osSemaphore);

  /* Start scheduler */
  osKernelStart();
  
  /* We should never get here as control is now taken by the scheduler */

  /* Infinite loop */
  while (1)
  {

  }
}

/**
  * @brief  Message Queue Producer Thread.
  * @param  argument: Not used
  * @retval None
  */
static void MessageQueueProducer (const void *argument)
{
  for(;;)
  {
    if(osMessagePut (osQueue, ProducerValue, 100) == osOK)  
    {      
			/* Increment the variable. consumer will expect to follow in numerical order. */
      ++ProducerValue;
      osDelay(300);
    }
    else
    {
       Error_Handler();
    }
  }
}

/**
  * @brief  Message Queue Consumer Thread.
  * @param  argument: Not used
  * @retval None
  */
static void MessageQueueConsumer (const void *argument)
{
  osEvent event;
  
  for(;;)
  {
    /* Get the message from the queue */
    event = osMessageGet(osQueue, 100);
    
    if(event.status == osEventMessage)
    {
      if(event.value.v == ConsumerValue)
      {
        /* Increment the value */
				HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_0);
        ++ConsumerValue;
      }
      else
      {  
				/* Catch-up. */
        ConsumerValue = event.value.v;
      }
    }
  }
}

/**
  * @brief  
  * @param  thread not used
  * @retval None
  */
static void LED_Thread1(void const *argument)
{
  uint32_t count = 0;
	
  for(;;)
  {	
		/* Try to obtain the semaphore. */
		if(osSemaphoreWait(osSemaphore , 100) == osOK)
		{			
			/* Toggle LED1 every 100 ms for 5 s */
			count = osKernelSysTick() + 5000;
			while (count >= osKernelSysTick())
			{
				HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_7);
				osDelay(100);
			}
			
			/* Release the semaphore */
			osSemaphoreRelease(osSemaphore);
		
			/* Suspend Thread 1 */
			osThreadSuspend(NULL);
		}
  }
}

/**
  * @brief  
  * @param  argument not used
  * @retval None
  */
static void LED_Thread2(void const *argument)
{
  uint32_t count;
	
  for(;;)
  {
		/* Try to obtain the semaphore. */
		if(osSemaphoreWait(osSemaphore , 0) == osOK)
		{	
			/* Resume Thread 1 (higher priority)*/
			osThreadResume(LEDThread1Handle);
			
			/* Toggle LED1 every 1s for 5 s */
			count = osKernelSysTick() + 5000;
			while (count >= osKernelSysTick())
			{
				HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_7);
				osDelay(1000);
			}
			
			/* Release the semaphore */
			osSemaphoreRelease(osSemaphore);
		}
  }
}


/** System Clock Configuration
*/
void SystemClock_Config(void)
{

  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;

    /**Configure the main internal regulator output voltage 
    */
  __HAL_RCC_PWR_CLK_ENABLE();

  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

    /**Initializes the CPU, AHB and APB busses clocks 
    */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLM = 8;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 4;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

    /**Initializes the CPU, AHB and APB busses clocks 
    */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV4;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }

    /**Configure the Systick interrupt time 
    */
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

    /**Configure the Systick 
    */
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
}

/** Configure pins as 
        * Analog 
        * Input 
        * Output
        * EVENT_OUT
        * EXTI
*/
static void MX_GPIO_Init(void)
{

  GPIO_InitTypeDef GPIO_InitStruct;

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOH_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_14|GPIO_PIN_7, GPIO_PIN_RESET);

  /*Configure GPIO pin : PC13 */
  GPIO_InitStruct.Pin = GPIO_PIN_13;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /*Configure GPIO pins : PB0 PB14 PB7 */
  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_14|GPIO_PIN_7;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

}

/* Callback01 function */
void Callback01(void const * argument)
{
  HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_14);
}

/**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM1 interrupt took place, inside
  * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
  * a global variable "uwTick" used as application time base.
  * @param  htim : TIM handle
  * @retval None
  */
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
/* USER CODE BEGIN Callback 0 */

/* USER CODE END Callback 0 */
  if (htim->Instance == TIM1) {
    HAL_IncTick();
  }
/* USER CODE BEGIN Callback 1 */

/* USER CODE END Callback 1 */
}

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler */
  /* User can add his own implementation to report the HAL error return state */
  while(1) 
  {
  }
  /* USER CODE END Error_Handler */ 
}

#ifdef USE_FULL_ASSERT

/**
   * @brief Reports the name of the source file and the source line number
   * where the assert_param error has occurred.
   * @param file: pointer to the source file name
   * @param line: assert_param error line source number
   * @retval None
   */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
    ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */

}

#endif

/**
  * @}
  */ 

/**
  * @}
*/ 

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/