/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Ultimate Liberty license
  * SLA0044, the "License"; You may not use this file except in compliance with
  * the License. You may obtain a copy of the License at:
  *                             www.st.com/SLA0044
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "fatfs.h"
#include "lwip.h"
#include "usb_device.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */


/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
extern uint8_t NumCauseReset;
/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void MX_FREERTOS_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/******************** Конфигурация сторожевого таймера ************************/
void wdt_init(uint16_t tw)
{
	IWDG->KR = 0x5555; // Ключ для доступа к таймеру
	IWDG->PR = 7; // Обновление IWDG_PR
	IWDG->RLR = tw * 40 / 256; // Загрузить регистр перезагрузки
	IWDG->KR = 0xAAAA; // Перезагрузка
	IWDG->KR = 0xCCCC; // Пуск таймера
}

void wdt_reset(void)
{
	IWDG->KR = 0xAAAA; // Перезагрузка
}

struct dirpath *f_get_path(char *path)
{
	if(path == NULL) return NULL;
	uint16_t lenpath = strlen(path), startCount = 0, endCount = 0;
	struct dirpath *dir = malloc(sizeof(struct dirpath));
	if(dir == NULL) return NULL;
	
	for(uint16_t i = 0; i < lenpath; i++){ // поиск дерикторий
		if((path[i] == 0x5C) || (path[i] == 0x2F)){ // нашли дерикторию
			endCount++;
			startCount = endCount;
		}
		else endCount++;
	}
	uint16_t lenNameFile = endCount - startCount;
	
	if((endCount  - lenNameFile) != 0){
		dir->dirname = malloc((endCount  - lenNameFile));
		memcpy(dir->dirname, &path[0], (endCount  - lenNameFile));
		dir->dirname[endCount  - lenNameFile - 1] = '\0';
	}
	else dir->dirname = NULL;

	
	dir->fname = malloc(lenNameFile + 1);
	memcpy(dir->fname, &path[startCount], lenNameFile);
	dir->fname[lenNameFile] = '\0';
	
	dir->statedir = CLOSE_DIR;
	
	return dir;
}

void f_dir_path_free(struct dirpath *dir)
{
	if(dir == NULL) return;
	free(dir->dirname);
	free(dir->fname);
	free(dir);
}

/* создание списка каталогов из пути файла */
struct dirtree *f_finddir(char *path) // поиск дерикторий в пути
{
	uint16_t lenpath = strlen(path), startCount = 0, endCount = 0;
	struct dirtree *root_dir = malloc(sizeof(struct dirtree));
	if(root_dir == NULL) return NULL;
	root_dir->dirname = malloc(1);
	memcpy(root_dir->dirname, "\\", 1); // указываем что это корневая дериктория
	root_dir->fname = NULL;

	struct dirtree *curr_dir = root_dir;
	
	for(uint16_t i = 0; i < lenpath; i++){ // поиск дерикторий
		if((path[i] == 0x5C) || (path[i] == 0x2F)){ // нашли дерикторию
			struct dirtree *dir = malloc(sizeof(struct dirtree)); // выделяем память под дерикторию
			if(dir == NULL) return NULL;
			dir->dirname = malloc(endCount - startCount);
			memcpy(dir->dirname, &path[startCount], (endCount - startCount));
			dir->fname = NULL;
			dir->next = NULL;
			curr_dir->next = dir; // записываем следующюю дерикторию
			curr_dir = curr_dir->next;
			endCount++;
			startCount = endCount;
		}
		else endCount++;
	}
	curr_dir->fname = malloc(endCount - startCount);
	memcpy(curr_dir->fname, &path[startCount], (endCount - startCount));// если дерикторий нет, то в корневой копируем имя
	curr_dir->next = NULL;
	
	return(root_dir);
}

void f_dir_free(struct dirtree *dir){
	
	if(dir == NULL) return;
	struct dirtree *curr_dir = dir, *next_dir;
	
	while(1){
		if(curr_dir->next != NULL) {// есть еще следующая структура структура
			next_dir = curr_dir->next;
			if(next_dir->next != NULL) { // есть еще структура
				curr_dir = next_dir;
			}
			else {
				free(next_dir->dirname);
				free(next_dir->fname);
				free(next_dir); // нету дальше ни чего
				curr_dir->next = NULL;
				if(dir != NULL)curr_dir = dir;
				else return;
			}
		}
		else {
			free(curr_dir->dirname);
			free(curr_dir->fname);
			free(curr_dir);
			return;
		}
	}	
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
	uint32_t RegRCC_CSR = RCC->CSR;

	if((RegRCC_CSR & (1 << 30)) || (RegRCC_CSR & (1 << 29))) NumCauseReset = 1;
	else if(RegRCC_CSR & (1 << 28)) NumCauseReset = 2;
	else if(RegRCC_CSR & (1 << 27)) NumCauseReset = 3;
	else if(RegRCC_CSR & (1 << 26)) NumCauseReset = 4;
	else NumCauseReset = 0;
	
	RCC->CSR |= (1 << 24);

	SystemClock_Config();
  HAL_Init();
	__enable_irq();
  MX_GPIO_Init();
  MX_FREERTOS_Init();
	
  osKernelStart();

  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
//  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  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 = 25;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses 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_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
  /*PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_PLLI2S;
  PeriphClkInitStruct.PLLI2S.PLLI2SN = 100;
  PeriphClkInitStruct.PLLI2S.PLLI2SR = 4;
  PeriphClkInitStruct.PLLI2S.PLLI2SQ = 2;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
  {
    Error_Handler();
  }*/
  HAL_RCC_MCOConfig(RCC_MCO2, RCC_MCO2SOURCE_HSE, RCC_MCODIV_1);
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

 /**
  * @brief  Period elapsed callback in non blocking mode
  * @note   This function is called  when TIM6 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 == TIM6) {
    HAL_IncTick();
  }
  /* USER CODE BEGIN Callback 1 */

  /* USER CODE END Callback 1 */
}

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

#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 /* USE_FULL_ASSERT */

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