CAM

Collaboration diagram for CAM:

Modules
	CAMERA input format definition
	CAMERA output format definition
	CAMERA interrupt status definition
	CAMERA interrupt mask definition
	CAMERA interrupt clear definition
	CAMERA hsync/vsync polarity active level definition
	CAMERA input source definition
	CAMERA burst length definition
	CAMERA feature control cmd definition

Data Structures
struct	bflb_cam_config_s
	CAM configuration structure. More...

Functions
void	bflb_cam_init (struct bflb_device_s *dev, const struct bflb_cam_config_s *config)
	Initialize cam. More...
void	bflb_cam_start (struct bflb_device_s *dev)
	Enable cam. More...
void	bflb_cam_stop (struct bflb_device_s *dev)
	Disable cam. More...
void	bflb_cam_int_mask (struct bflb_device_s *dev, uint32_t int_type, bool mask)
	Mask or unmask cam interrupt. More...
void	bflb_cam_int_clear (struct bflb_device_s *dev, uint32_t int_type)
	Clear cam interrupt. More...
void	bflb_cam_crop_vsync (struct bflb_device_s *dev, uint16_t start_line, uint16_t end_line)
	Crop vsync. More...
void	bflb_cam_crop_hsync (struct bflb_device_s *dev, uint16_t start_pixel, uint16_t end_pixel)
	Crop hsync. More...
void	bflb_cam_pop_one_frame (struct bflb_device_s *dev)
	Pop one frame. More...
void	bflb_cam_swap_input_yu_order (struct bflb_device_s *dev, bool enable)
	Swap input order of y and uv. More...
void	bflb_cam_filter_frame_period (struct bflb_device_s *dev, uint8_t frame_count, uint32_t frame_valid)
	Set frame filter, if frame_count = 3, frame_valid = 101b, second frame will be dropped every 3 frames. More...
uint8_t	bflb_cam_get_frame_count (struct bflb_device_s *dev)
	Get frame count. More...
uint32_t	bflb_cam_get_frame_info (struct bflb_device_s *dev, uint8_t **pic)
	Get frame information. More...
uint32_t	bflb_cam_get_intstatus (struct bflb_device_s *dev)
	Get interrupt status. More...
int	bflb_cam_feature_control (struct bflb_device_s *dev, int cmd, size_t arg)
	Control cam feature. More...

Detailed Description

Function Documentation

bflb_cam_crop_hsync()

void bflb_cam_crop_hsync	(	struct bflb_device_s *	dev,
		uint16_t	start_pixel,
		uint16_t	end_pixel
	)

Crop hsync.

Parameters

[in]	dev	device handle
[in]	start_pixel	start pixel of each line
[in]	end_pixel	end pixel of each line, not include

bflb_cam_crop_vsync()

void bflb_cam_crop_vsync	(	struct bflb_device_s *	dev,
		uint16_t	start_line,
		uint16_t	end_line
	)

Crop vsync.

Parameters

[in]	dev	device handle
[in]	start_line	start line of window
[in]	end_line	end line of window, not include

bflb_cam_feature_control()

int bflb_cam_feature_control	(	struct bflb_device_s *	dev,
		int	cmd,
		size_t	arg
	)

Control cam feature.

Parameters

[in]	dev	device handle
[in]	cmd	feature command
[in]	arg	user data

Returns

A negated errno value on failure

bflb_cam_filter_frame_period()

void bflb_cam_filter_frame_period	(	struct bflb_device_s *	dev,
		uint8_t	frame_count,
		uint32_t	frame_valid
	)

Set frame filter, if frame_count = 3, frame_valid = 101b, second frame will be dropped every 3 frames.

Parameters

[in]	dev	device handle
[in]	frame_count	frame filter period
[in]	frame_valid	frame valid

bflb_cam_get_frame_count()

uint8_t bflb_cam_get_frame_count

(

struct bflb_device_s *

dev

)

Get frame count.

Parameters

[in]

dev

device handle

Returns

Frame count

bflb_cam_get_frame_info()

uint32_t bflb_cam_get_frame_info	(	struct bflb_device_s *	dev,
		uint8_t **	pic
	)

Get frame information.

Parameters

[in]	dev	device handle
[out]	pic	pointer to frame start address

Returns

Size of frame

bflb_cam_get_intstatus()

uint32_t bflb_cam_get_intstatus

(

struct bflb_device_s *

dev

)

Get interrupt status.

Parameters

[in]

dev

device handle

Returns

Interrupt status

bflb_cam_init()

void bflb_cam_init	(	struct bflb_device_s *	dev,
		const struct bflb_cam_config_s *	config
	)

Initialize cam.

Parameters

[in]	dev	device handle
[in]	config	pointer to cam configure structure

bflb_cam_int_clear()

void bflb_cam_int_clear	(	struct bflb_device_s *	dev,
		uint32_t	int_type
	)

Clear cam interrupt.

Parameters

[in]	dev	device handle
[in]	int_type	int_type cam interrupt clear type, use CAMERA interrupt clear definition

bflb_cam_int_mask()

void bflb_cam_int_mask	(	struct bflb_device_s *	dev,
		uint32_t	int_type,
		bool	mask
	)

Mask or unmask cam interrupt.

Parameters

[in]	dev	device handle
[in]	int_type	cam interrupt mask type, use CAMERA interrupt mask definition
[in]	mask	mask or unmask

bflb_cam_pop_one_frame()

void bflb_cam_pop_one_frame

(

struct bflb_device_s *

dev

)

Pop one frame.

Parameters

[in]

dev

device handle

bflb_cam_start()

void bflb_cam_start

(

struct bflb_device_s *

dev

)

Enable cam.

Parameters

[in]

dev

device handle

bflb_cam_stop()

void bflb_cam_stop

(

struct bflb_device_s *

dev

)

Disable cam.

Parameters

[in]

dev

device handle

bflb_cam_swap_input_yu_order()

void bflb_cam_swap_input_yu_order	(	struct bflb_device_s *	dev,
		bool	enable
	)

Swap input order of y and uv.

Parameters

[in]	dev	device handle
[in]	enable	enable or disable