/**
* @brief Initializes the camera.
* @param uint32_t Resolution : camera sensor requested resolution (x, y) : standard resolution
* naming QQVGA, QVGA, VGA ...
*
* @retval Camera status
*/
uint8_t BSP_CAMERA_Init(uint32_t Resolution)
{
DCMI_HandleTypeDef *phdcmi;
uint8_t status = CAMERA_ERROR;
/* Get the DCMI handle structure */
phdcmi = &hDcmiEval;
/*** Configures the DCMI to interface with the camera module ***/
/* DCMI configuration */
phdcmi->Init.CaptureRate = DCMI_CR_ALL_FRAME;
phdcmi->Init.HSPolarity = DCMI_HSPOLARITY_HIGH;
phdcmi->Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
phdcmi->Init.VSPolarity = DCMI_VSPOLARITY_HIGH;
phdcmi->Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
phdcmi->Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
phdcmi->Instance = DCMI;
/* Configure IO functionalities for CAMERA detect pin */
BSP_IO_Init();
/* Apply Camera Module hardware reset */
BSP_CAMERA_HwReset();
/* Check if the CAMERA Module is plugged on board */
if(BSP_IO_ReadPin(CAM_PLUG_PIN) == BSP_IO_PIN_SET)
{
status = CAMERA_NOT_DETECTED;
return status; /* Exit with error */
}
/* Read ID of Camera module via I2C */
if (s5k5cag_ReadID(CAMERA_I2C_ADDRESS) == S5K5CAG_ID)
{
/* Initialize the camera driver structure */
camera_drv = &s5k5cag_drv;
CameraHwAddress = CAMERA_I2C_ADDRESS;
/* DCMI Initialization */
BSP_CAMERA_MspInit(&hDcmiEval, NULL);
HAL_DCMI_Init(phdcmi);
/* Camera Module Initialization via I2C to the wanted 'Resolution' */
camera_drv->Init(CameraHwAddress, Resolution);
CameraCurrentResolution = Resolution;
/* Return CAMERA_OK status */
status = CAMERA_OK;
}
else
{
/* Return CAMERA_NOT_SUPPORTED status */
status = CAMERA_NOT_SUPPORTED;
}
return status;
}
/**
* @brief Initializes the camera.
* @param Camera: Pointer to the camera configuration structure
* @retval Camera status
*/
uint8_t BSP_CAMERA_Init(uint32_t Resolution)
{
DCMI_HandleTypeDef *phdcmi;
uint8_t ret = CAMERA_ERROR;
/* Get the DCMI handle structure */
phdcmi = &hDcmiEval;
/*** Configures the DCMI to interface with the camera module ***/
/* DCMI configuration */
phdcmi->Init.CaptureRate = DCMI_CR_ALL_FRAME;
phdcmi->Init.HSPolarity = DCMI_HSPOLARITY_HIGH;
phdcmi->Init.SynchroMode = DCMI_SYNCHRO_HARDWARE;
phdcmi->Init.VSPolarity = DCMI_VSPOLARITY_HIGH;
phdcmi->Init.ExtendedDataMode = DCMI_EXTEND_DATA_8B;
phdcmi->Init.PCKPolarity = DCMI_PCKPOLARITY_RISING;
phdcmi->Init.ByteSelectMode = DCMI_BSM_ALL;
phdcmi->Init.ByteSelectStart = DCMI_OEBS_ODD;
phdcmi->Init.LineSelectMode = DCMI_LSM_ALL;
phdcmi->Init.LineSelectStart = DCMI_OELS_ODD;
phdcmi->Instance = DCMI;
/* Configure IO functionalities for CAMERA detect pin */
BSP_IO_Init();
/* Apply Camera hardware reset */
BSP_CAMERA_HwReset();
/* Check if the CAMERA is plugged */
if(BSP_IO_ReadPin(CAM_PLUG_PIN))
{
return CAMERA_ERROR;
}
if (s5k5cag_ReadID(CAMERA_I2C_ADDRESS) == S5K5CAG_ID)
{
/* Initialize the camera driver structure */
camera_drv = &s5k5cag_drv;
cameraHwAddress = CAMERA_I2C_ADDRESS;
/* DCMI Initialization */
BSP_CAMERA_MspInit(&hDcmiEval, NULL);
HAL_DCMI_Init(phdcmi);
/* Camera Init */
camera_drv->Init(cameraHwAddress, Resolution);
currentResolution = Resolution;
/* Return CAMERA_OK status */
ret = CAMERA_OK;
}
else
{
/* No supported camera sensor found */
ret = CAMERA_ERROR;
}
return ret;
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
uint8_t lcd_status = LCD_OK;
p_bmp_converted_pixel_data = (uint8_t *)CONVERTED_FRAME_BUFFER;
offset_address_area_cam_in_lcd_buffer = ((((LcdResY - CameraResY) / 2) * LcdResX)
+ ((LcdResX - CameraResX) / 2))
* ARGB8888_BYTE_PER_PIXEL;
/* For the first Camera line event callback : set the offset to display camera image in the center */
/* of LCD frame buffer background */
lcd_datapointer = offset_address_area_cam_in_lcd_buffer;
/* STM32F4xx HAL library initialization:
- Configure the Flash prefetch, instruction and Data caches
- Configure the Systick to generate an interrupt each 1 msec
- Set NVIC Group Priority to 4
- Global MSP (MCU Support Package) initialization
*/
HAL_Init();
/* Configure the system clock to 180 MHz */
SystemClock_Config();
BSP_IO_Init();
/* Reset and power down camera to be sure camera is Off prior start testing BSP */
BSP_CAMERA_HwReset();
BSP_CAMERA_PwrDown();
/* Configure LED1 and LED3 */
BSP_LED_Init(LED1);
BSP_LED_Init(LED3);
/*##-1- LCD DSI initialization in mode Video Burst with two LTDC layers of size 800x480 */
lcd_status = BSP_LCD_Init();
if(lcd_status != LCD_OK)
{
Error_Handler();
}
BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_BACKGROUND, LCD_BG_LAYER_ADDRESS);
BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER_FOREGROUND, LCD_FB_START_ADDRESS);
/* Select Foreground Layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_FOREGROUND);
/* Clear the LCD Foreground layer */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Disable the LTDC Foreground layer */
BSP_LCD_SetLayerVisible(LTDC_ACTIVE_LAYER_FOREGROUND, DISABLE);
/* Select the LCD Background layer */
BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER_BACKGROUND);
BSP_LCD_Clear(LCD_COLOR_WHITE);
/*##-2- Init Host Library ##################################################*/
/* Display USB initialization message */
BSP_LCD_SetTextColor(LCD_COLOR_DARKBLUE);
BSP_LCD_SetFont(&Font24);
BSP_LCD_DisplayStringAt(20, (BSP_LCD_GetYSize() - 24), (uint8_t *)"USB init ..", RIGHT_MODE);
USBH_Init(&hUSB_Host, USBH_UserProcess, 0);
/* Add Supported Class */
USBH_RegisterClass(&hUSB_Host, USBH_MSC_CLASS);
/* Start Host Process */
USBH_Start(&hUSB_Host);
/*##-3- Configure TAMPER Button ############################################*/
BSP_PB_Init(BUTTON_TAMPER, BUTTON_MODE_GPIO);
/*##-4- Link the USB Host disk I/O driver ##################################*/
FATFS_LinkDriver(&USBH_Driver, MSC_Path);
/*##-5- Camera Initialization and start capture ############################*/
/* Display camera initialization message */
BSP_LCD_DisplayStringAt(20, (BSP_LCD_GetYSize() - 24), (uint8_t *)"Camera init ..", RIGHT_MODE);
/* Initialize the Camera */
BSP_CAMERA_Init(RESOLUTION_R480x272);
/* Start the Camera Capture */
BSP_CAMERA_ContinuousStart((uint8_t *)CAMERA_FRAME_BUFFER);
BSP_LCD_DisplayStringAt(20, (BSP_LCD_GetYSize() - 48), (uint8_t *)"Press TAMPER button to take snapshot", RIGHT_MODE);
BSP_LCD_DisplayStringAt(20, (BSP_LCD_GetYSize() - 24), (uint8_t *)"Camera Play ..", RIGHT_MODE);
/*##-6- Run Application ####################################################*/
while (1)
{
/* USB Host Background task */
USBH_Process(&hUSB_Host);
switch(Appli_state)
{
case STORAGE_READY:
CAMERA_Capture();
break;
case STORAGE_IDLE:
break;
}
}
}
