/**
* @brief Initializes the OV9655 CAMERA component.
* @param DeviceAddr: Device address on communication Bus.
* @param resolution: Camera resolution
* @retval None
*/
void ov9655_Init(uint16_t DeviceAddr, uint32_t resolution)
{
uint32_t index;
/* Initialize I2C */
CAMERA_IO_Init();
/* Prepare the camera to be configured by resetting all its registers */
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_COM7, 0x80);
CAMERA_Delay(200);
/* Initialize OV9655 */
switch (resolution)
{
case CAMERA_R160x120:
{
for(index=0; index<(sizeof(OV9655_QQVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_QQVGA[index][0], OV9655_QQVGA[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R320x240:
{
for(index=0; index<(sizeof(OV9655_QVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_QVGA[index][0], OV9655_QVGA[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R480x272:
{
/* Not supported resolution */
break;
}
case CAMERA_R640x480:
{
for(index=0; index<(sizeof(OV9655_VGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV9655_VGA[index][0], OV9655_VGA[index][1]);
CAMERA_Delay(2);
}
break;
}
default:
{
break;
}
}
}
/**
* @brief Configures the OV9655 camera feature.
* @param DeviceAddr: Device address on communication Bus.
* @param feature: Camera feature to be configured
* @param value: Value to be configured
* @param brightness_value: Brightness value to be configured
* @retval None
*/
void ov9655_Config(uint16_t DeviceAddr, uint32_t feature, uint32_t value, uint32_t brightness_value)
{
uint8_t tslb, mtx1, mtx2, mtx3, mtx4, mtx5, mtx6;
uint64_t value_tmp;
uint32_t br_value;
/* Convert the input value into ov9655 parameters */
value_tmp = ov9655_ConvertValue(feature, value);
br_value = (uint32_t)ov9655_ConvertValue(CAMERA_CONTRAST_BRIGHTNESS, brightness_value);
switch(feature)
{
case CAMERA_CONTRAST_BRIGHTNESS:
{
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_BRTN, br_value);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_CNST1, value_tmp);
break;
}
case CAMERA_BLACK_WHITE:
case CAMERA_COLOR_EFFECT:
{
tslb = (uint8_t)(value_tmp >> 48);
mtx1 = (uint8_t)(value_tmp >> 40);
mtx2 = (uint8_t)(value_tmp >> 32);
mtx3 = (uint8_t)(value_tmp >> 24);
mtx4 = (uint8_t)(value_tmp >> 16);
mtx5 = (uint8_t)(value_tmp >> 8);
mtx6 = (uint8_t)(value_tmp);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_TSLB, tslb);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX1, mtx1);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX2, mtx2);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX3, mtx3);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX4, mtx4);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX5, mtx5);
CAMERA_IO_Write(DeviceAddr, OV9655_SENSOR_MTX6, mtx6);
break;
}
default:
{
break;
}
}
}
/**
* @brief Read the OV2640 Camera identity.
* @param DeviceAddr: Device address on communication Bus.
* @retval the OV2640 ID
*/
uint16_t ov2640_ReadID(uint16_t DeviceAddr)
{
if(Is_I2C_Initialized == 0)
{
/* Initialize I2C */
CAMERA_IO_Init();
Is_I2C_Initialized = 1;
}
/* Prepare the sensor to read the Camera ID */
CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
/* Get the camera ID */
return (CAMERA_IO_Read(DeviceAddr, OV2640_SENSOR_PIDH));
}
/**
* @brief Configures the OV2640 camera feature.
* @param DeviceAddr: Device address on communication Bus.
* @param feature: the camera feature to be configured
* @param value: the value to be configured
* @param brightness_value: the brightness value to be configured
* @retval None
*/
void ov2640_Config(uint16_t DeviceAddr, uint32_t feature, uint32_t value, uint32_t brightness_value)
{
uint8_t value1, value2;
uint32_t value_tmp;
uint32_t br_value;
/* Convert the input value into ov2640 parameters */
value_tmp = ov2640_ConvertValue(feature, value);
br_value = ov2640_ConvertValue(CAMERA_CONTRAST_BRIGHTNESS, brightness_value);
switch(feature)
{
case CAMERA_BLACK_WHITE:
{
CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7d, value_tmp);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x05);
CAMERA_IO_Write(DeviceAddr, 0x7d, 0x80);
CAMERA_IO_Write(DeviceAddr, 0x7d, 0x80);
break;
}
case CAMERA_CONTRAST_BRIGHTNESS:
{
value1 = (uint8_t)(value_tmp);
value2 = (uint8_t)(value_tmp >> 8);
CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7d, 0x04);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x07);
CAMERA_IO_Write(DeviceAddr, 0x7d, br_value);
CAMERA_IO_Write(DeviceAddr, 0x7d, value1);
CAMERA_IO_Write(DeviceAddr, 0x7d, value2);
CAMERA_IO_Write(DeviceAddr, 0x7d, 0x06);
break;
}
case CAMERA_COLOR_EFFECT:
{
value1 = (uint8_t)(value_tmp);
value2 = (uint8_t)(value_tmp >> 8);
CAMERA_IO_Write(DeviceAddr, 0xff, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x00);
CAMERA_IO_Write(DeviceAddr, 0x7d, 0x18);
CAMERA_IO_Write(DeviceAddr, 0x7c, 0x05);
CAMERA_IO_Write(DeviceAddr, 0x7d, value1);
CAMERA_IO_Write(DeviceAddr, 0x7d, value2);
break;
}
default:
{
break;
}
}
}
/**
* @brief Initializes the OV2640 CAMERA component.
* @param DeviceAddr: Device address on communication Bus.
* @param resolution: the Camera resolution
* @retval None
*/
void ov2640_Init(uint16_t DeviceAddr, uint32_t resolution)
{
uint32_t index;
if(Is_I2C_Initialized == 0)
{
Is_I2C_Initialized = 1;
/* Initialize I2C */
CAMERA_IO_Init();
}
/* Prepare the camera to be configured */
CAMERA_IO_Write(DeviceAddr, OV2640_DSP_RA_DLMT, 0x01);
CAMERA_IO_Write(DeviceAddr, OV2640_SENSOR_COM7, 0x80);
CAMERA_Delay(200);
/* Initialize OV2640 */
switch (resolution)
{
case CAMERA_R160x120:
{
for(index=0; index<(sizeof(OV2640_QQVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_QQVGA[index][0], OV2640_QQVGA[index][1]);
CAMERA_Delay(1);
}
break;
}
case CAMERA_R320x240:
{
for(index=0; index<(sizeof(OV2640_QVGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_QVGA[index][0], OV2640_QVGA[index][1]);
CAMERA_Delay(1);
}
break;
}
case CAMERA_R480x272:
{
for(index=0; index<(sizeof(OV2640_480x272)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_480x272[index][0], OV2640_480x272[index][1]);
CAMERA_Delay(2);
}
break;
}
case CAMERA_R640x480:
{
for(index=0; index<(sizeof(OV2640_VGA)/2); index++)
{
CAMERA_IO_Write(DeviceAddr, OV2640_VGA[index][0], OV2640_VGA[index][1]);
CAMERA_Delay(2);
}
break;
}
default:
{
break;
}
}
}
