linux/drivers/mxc/ipu/ipu_csi.c File Reference

IPU CMOS Sensor interface functions. More...

Functions
int32_t	ipu_csi_init_interface (uint16_t width, uint16_t height, uint32_t pixel_fmt, ipu_csi_signal_cfg_t sig)
void	ipu_csi_flash_strobe (bool flag)
int32_t	ipu_csi_enable_mclk (int src, bool flag, bool wait)
int	ipu_csi_read_mclk_flag (void)
void	ipu_csi_get_window_size (uint32_t *width, uint32_t *height, uint32_t dummy)
void	ipu_csi_set_window_size (uint32_t width, uint32_t height, uint32_t dummy)
void	ipu_csi_set_window_pos (uint32_t left, uint32_t top, uint32_t dummy)
int32_t	ipu_csi_get_sensor_protocol (uint32_t csi)

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Detailed Description

IPU CMOS Sensor interface functions.

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Function Documentation

int32_t ipu_csi_enable_mclk	(	int	src,
		bool	flag,
		bool	wait
	)

ipu_csi_enable_mclk

Parameters:

	src	enum define which source to control the clk CSI_MCLK_VF CSI_MCLK_ENC CSI_MCLK_RAW CSI_MCLK_I2C
	flag	true to enable mclk, false to disable mclk
	wait	true to wait 100ms make clock stable, false not wait

Returns:

0 for success

void ipu_csi_flash_strobe

(

bool

flag

)

ipu_csi_flash_strobe

Parameters:

flag

true to turn on flash strobe

Returns:

0 for success

Referenced by mxc_v4l2_s_ctrl().

int32_t ipu_csi_get_sensor_protocol

(

uint32_t

csi

)

ipu_csi_get_sensor_protocol

Parameters:

csi

csi 0 or csi 1

Returns:

Returns sensor protocol

Referenced by csi_enc_setup().

void ipu_csi_get_window_size	(	uint32_t *	width,
		uint32_t *	height,
		uint32_t	dummy
	)

ipu_csi_get_window_size

Parameters:

	width	pointer to window width
	height	pointer to window height
	dummy	dummy for IPUv1 to keep the same interface with IPUv3

Referenced by prp_enc_setup(), and prpvf_start().

int32_t ipu_csi_init_interface	(	uint16_t	width,
		uint16_t	height,
		uint32_t	pixel_fmt,
		ipu_csi_signal_cfg_t	sig
	)

ipu_csi_init_interface Sets initial values for the CSI registers. The width and height of the sensor and the actual frame size will be set to the same values.

Parameters:

	width	Sensor width
	height	Sensor height
	pixel_fmt	pixel format
	sig	ipu_csi_signal_cfg_t structure

Returns:

0 for success, -EINVAL for error

Referenced by mxc_v4l2_s_param(), and mxc_v4l_open().

int ipu_csi_read_mclk_flag

(

void

)

ipu_csi_read_mclk_flag

Returns:

csi_mclk_flag

void ipu_csi_set_window_pos	(	uint32_t	left,
		uint32_t	top,
		uint32_t	dummy
	)

ipu_csi_set_window_pos

Parameters:

	left	uint32 window x start
	top	uint32 window y start
	dummy	dummy for IPUv1 to keep the same interface with IPUv3

Referenced by init_camera_struct(), mxc_v4l2_s_param(), mxc_v4l_do_ioctl(), and mxc_v4l_open().

void ipu_csi_set_window_size	(	uint32_t	width,
		uint32_t	height,
		uint32_t	dummy
	)

ipu_csi_set_window_size

Parameters:

	width	window width
	height	window height
	dummy	dummy for IPUv1 to keep the same interface with IPUv3

Referenced by init_camera_struct(), mxc_v4l2_s_param(), mxc_v4l_do_ioctl(), and mxc_v4l_open().