/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2026 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "cmsis_os.h"
#include "dma.h"
#include "iwdg.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>

#include "config.h"
#include "debug_log.h"
/* USER CODE END Includes */

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

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* CH390 硬件控制引脚 */
#define CH390_RST_PIN       GPIO_PIN_1
#define CH390_RST_PORT      GPIOB
#define CH390_CS_PIN        GPIO_PIN_4
#define CH390_CS_PORT       GPIOA

/* LED 指示灯 */
#define LED_PIN             GPIO_PIN_13
#define LED_PORT            GPIOC
/* USER CODE END PD */

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

/* USER CODE END PM */

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

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void MX_FREERTOS_Init(void);
/* USER CODE BEGIN PFP */
static void CH390_HardwareReset(void);
static void LED_Init(void);
static void ApplyConfiguredUartBaudrates(void);
void Debug_TrapWithRttHint(const char *tag);
/* USER CODE END PFP */

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

/**
 * @brief CH390 硬件复位
 * @note  复位时序: RST 低电平至少 10us，然后高电平等待 50ms 完成初始化
 */
static void CH390_HardwareReset(void)
{
    /* 拉低 RST 引脚 */
    HAL_GPIO_WritePin(CH390_RST_PORT, CH390_RST_PIN, GPIO_PIN_RESET);
    HAL_Delay(1);  /* 保持低电平 1ms (远超最小 10us 要求) */
    
    /* 拉高 RST 引脚，等待芯片初始化完成 */
    HAL_GPIO_WritePin(CH390_RST_PORT, CH390_RST_PIN, GPIO_PIN_SET);
    HAL_Delay(50); /* 等待 50ms */
    
    /* 确保 CS 为高电平（未选中状态） */
    HAL_GPIO_WritePin(CH390_CS_PORT, CH390_CS_PIN, GPIO_PIN_SET);
}

/**
 * @brief LED 初始化（点亮表示系统启动）
 */
static void LED_Init(void)
{
    /* LED 灭（PC13 高电平灭，低电平亮） */
    HAL_GPIO_WritePin(LED_PORT, LED_PIN, GPIO_PIN_SET);
}

/**
 * @brief LED 闪烁（用于指示系统运行状态）
 */
void LED_Toggle(void)
{
    HAL_GPIO_TogglePin(LED_PORT, LED_PIN);
}

static void ApplyConfiguredUartBaudrates(void)
{
    USART_SetConfiguredBaudrates(config_get_uart_baudrate(LINK_UART_U0),
                                 config_get_uart_baudrate(LINK_UART_U1));
}

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

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

  /* USER CODE BEGIN Init */
  debug_log_init();
  debug_log_boot("hal-init");
  /* USER CODE END Init */

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

  /* USER CODE BEGIN SysInit */
  debug_log_boot("clock-config");
  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_USART1_UART_Init();
  config_init();
  ApplyConfiguredUartBaudrates();
  MX_USART2_UART_Init();
  MX_USART3_UART_Init();
  MX_SPI1_Init();
  /* USER CODE BEGIN 2 */
  debug_log_boot("peripherals-ready");
  
  /* LED 初始化 */
  LED_Init();
  
  /* CH390 硬件复位 */
  CH390_HardwareReset();
  
  debug_log_boot("config-ready");
  
  /* USER CODE END 2 */

  /* Init scheduler */
  osKernelInitialize();  /* Call init function for freertos objects (in cmsis_os2.c) */
  MX_FREERTOS_Init();
  debug_log_boot("freertos-init");

  /* Start scheduler */
  debug_log_boot("scheduler-start");
  osKernelStart();

  /* We should never get here as control is now taken by the scheduler */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  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};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI|RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.LSIState = RCC_LSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  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_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/**
 * @brief  重定向 printf 到 UART1（调试输出）
 */
void Debug_TrapWithRttHint(const char *tag)
{
  debug_log_fault_context(tag, __FILE__, __LINE__);
}

void vApplicationMallocFailedHook(void)
{
  debug_log_fault_context("malloc-failed", __FILE__, __LINE__);
  __disable_irq();
  for (;;)
  {
  }
}

void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
{
  debug_log_printf("[FAULT] stack-overflow task=%s\r\n",
                   (pcTaskName != NULL) ? pcTaskName : "(null)");
  debug_log_fault_context("stack-overflow", __FILE__, __LINE__);
  (void)xTask;
  __disable_irq();
  for (;;)
  {
  }
}

/* USER CODE END 4 */

/**
  * @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 */
  debug_log_fault_context("error-handler", __FILE__, __LINE__);
  __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 */
