/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 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"

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

/* USER CODE END Includes */

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

typedef enum
{
	C4,
	C5,
	D5,
	E5,
	F5,
	G5,
	A5,
	B5,
	C6,
	D6,
	E6,
	F6,
	G6,
	A6,
	B6,
	MAX_VALUE
} soundToneType;

/* USER CODE END PTD */

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

#define CS43L22_I2C_ADDRESS		0x94
#define I2C_TIMEOUT				10

/* USER CODE END PD */

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

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;

I2S_HandleTypeDef hi2s3;
DMA_HandleTypeDef hdma_spi3_tx;

/* USER CODE BEGIN PV */

int16_t dataI2S[100] = {0};

const uint32_t full_note_duration = 214;
const uint32_t half_note_duration = full_note_duration >> 1;
const uint32_t quarter_note_duration = full_note_duration >> 2;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_I2C1_Init(void);
static void MX_I2S3_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

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

void CS43L22_Init(void)
{
	// Enable chip
	HAL_GPIO_WritePin(GPIOD, GPIO_PIN_4, GPIO_PIN_SET);

	//
	// Initialization
	//
	uint8_t TxBuffer[2];

	TxBuffer[0] = 0x0D;
	TxBuffer[1] = 0x01;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x00;
	TxBuffer[1] = 0x99;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x47;
	TxBuffer[1] = 0x80;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x32;
	TxBuffer[1] = 0xFF;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x32;
	TxBuffer[1] = 0x7F;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x00;
	TxBuffer[1] = 0x00;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x04;
	TxBuffer[1] = 0xAF;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x0D;
	TxBuffer[1] = 0x70;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x05;
	TxBuffer[1] = 0x81;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x06;
	TxBuffer[1] = 0x07;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x0A;
	TxBuffer[1] = 0x00;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x27;
	TxBuffer[1] = 0x00;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x1A;
	TxBuffer[1] = 0x0A;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x1B;
	TxBuffer[1] = 0x0A;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x1F;
	TxBuffer[1] = 0x0F;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	TxBuffer[0] = 0x02;
	TxBuffer[1] = 0x9E;
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);
}

void CS43L22_Beep(soundToneType pitch, uint32_t duration_ms)
{
	uint8_t TxBuffer[2];

	// Set volume and off time
	TxBuffer[0] = 0x1D;		// Register address
	TxBuffer[1] = 0x00;		// Value (volume and off time)
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	// Set sound frequency
	TxBuffer[0] = 0x1C;		// Register address
	/*
	switch (pitch)
	{
		case C4:
			TxBuffer[1] = 0x00;		// Value (frequency and on time)
			break;
		// Assume C4 for all other cases
		case MAX_VALUE:
		default:
			TxBuffer[1] = 0x00;		// Value (frequency and on time)
			break;
	}
	*/
	TxBuffer[1] = (pitch << 4);
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	// Enable continuous mode (SOUND STARTED)
	TxBuffer[0] = 0x1E;		// Register address
	TxBuffer[1] = 0xC0;		// Value (beep and tone configuration)
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);

	// Playing...
	HAL_Delay(duration_ms);

	// Disable continuous mode (SOUND STOPED)
	TxBuffer[0] = 0x1E;		// Register address
	TxBuffer[1] = 0x00;		// Value (beep and tone configuration)
	HAL_I2C_Master_Transmit(&hi2c1, CS43L22_I2C_ADDRESS, (uint8_t*) &TxBuffer, 2, I2C_TIMEOUT);
}

/* 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 */

  /* USER CODE END Init */

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

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_I2C1_Init();
  MX_I2S3_Init();
  /* USER CODE BEGIN 2 */

  // Init DAC
    CS43L22_Init();

    // Transmit empty data
    HAL_I2S_Transmit_DMA(&hi2s3, (uint16_t *)dataI2S, 100);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
	  for (int i = 0; i < 2; i++) {
		  CS43L22_Beep(F5, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(C6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(B5, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(C6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(F6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(C6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(B5, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(C6, half_note_duration);
		  HAL_Delay(half_note_duration);
	  }

	  for (int i = 0; i < 2; i++) {
		  CS43L22_Beep(G5, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(D6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(C6, half_note_duration);
		  CS43L22_Beep(D6, half_note_duration);
		  HAL_Delay(half_note_duration);
		  CS43L22_Beep(G6, half_note_duration);
		  HAL_Delay(full_note_duration);
		  CS43L22_Beep(D6, full_note_duration);
		  CS43L22_Beep(C6, full_note_duration);
		  CS43L22_Beep(D6, full_note_duration);
	  }
    /* 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};

  /** Macro to configure the PLL multiplication factor
  */
  __HAL_RCC_PLL_PLLM_CONFIG(16);

  /** Macro to configure the PLL clock source
  */
  __HAL_RCC_PLL_PLLSOURCE_CONFIG(RCC_PLLSOURCE_HSI);

  /** 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_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  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_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C1_Init(void)
{

  /* USER CODE BEGIN I2C1_Init 0 */

  /* USER CODE END I2C1_Init 0 */

  /* USER CODE BEGIN I2C1_Init 1 */

  /* USER CODE END I2C1_Init 1 */
  hi2c1.Instance = I2C1;
  hi2c1.Init.ClockSpeed = 100000;
  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2C1_Init 2 */

  /* USER CODE END I2C1_Init 2 */

}

/**
  * @brief I2S3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2S3_Init(void)
{

  /* USER CODE BEGIN I2S3_Init 0 */

  /* USER CODE END I2S3_Init 0 */

  /* USER CODE BEGIN I2S3_Init 1 */

  /* USER CODE END I2S3_Init 1 */
  hi2s3.Instance = SPI3;
  hi2s3.Init.Mode = I2S_MODE_MASTER_TX;
  hi2s3.Init.Standard = I2S_STANDARD_PHILIPS;
  hi2s3.Init.DataFormat = I2S_DATAFORMAT_16B;
  hi2s3.Init.MCLKOutput = I2S_MCLKOUTPUT_ENABLE;
  hi2s3.Init.AudioFreq = I2S_AUDIOFREQ_48K;
  hi2s3.Init.CPOL = I2S_CPOL_LOW;
  hi2s3.Init.ClockSource = I2S_CLOCK_PLL;
  hi2s3.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
  if (HAL_I2S_Init(&hi2s3) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2S3_Init 2 */

  /* USER CODE END I2S3_Init 2 */

}

/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{

  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();

  /* DMA interrupt init */
  /* DMA1_Stream5_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Stream5_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Stream5_IRQn);

}

/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_4, GPIO_PIN_RESET);

  /*Configure GPIO pin : PD4 */
  GPIO_InitStruct.Pin = GPIO_PIN_4;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* 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 */
  __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 */