linux/drivers/mxc/ipu3/ipu_capture.c File Reference

IPU capture dase functions. More...

Functions
int	_ipu_csi_mclk_set (struct ipu_soc *ipu, uint32_t pixel_clk, uint32_t csi)
int32_t	ipu_csi_init_interface (struct ipu_soc *ipu, uint16_t width, uint16_t height, uint32_t pixel_fmt, ipu_csi_signal_cfg_t cfg_param)
int32_t	ipu_csi_get_sensor_protocol (struct ipu_soc *ipu, uint32_t csi)
int	ipu_csi_enable_mclk (struct ipu_soc *ipu, int csi, bool flag, bool wait)
void	ipu_csi_get_window_size (struct ipu_soc *ipu, uint32_t *width, uint32_t *height, uint32_t csi)
void	ipu_csi_set_window_size (struct ipu_soc *ipu, uint32_t width, uint32_t height, uint32_t csi)
void	ipu_csi_set_window_pos (struct ipu_soc *ipu, uint32_t left, uint32_t top, uint32_t csi)
void	_ipu_csi_horizontal_downsize_enable (struct ipu_soc *ipu, uint32_t csi)
void	_ipu_csi_horizontal_downsize_disable (struct ipu_soc *ipu, uint32_t csi)
void	_ipu_csi_vertical_downsize_enable (struct ipu_soc *ipu, uint32_t csi)
void	_ipu_csi_vertical_downsize_disable (struct ipu_soc *ipu, uint32_t csi)
void	_ipu_csi_set_test_generator (struct ipu_soc *ipu, bool active, uint32_t r_value, uint32_t g_value, uint32_t b_value, uint32_t pix_clk, uint32_t csi)
void	_ipu_csi_ccir_err_detection_enable (struct ipu_soc *ipu, uint32_t csi)
void	_ipu_csi_ccir_err_detection_disable (struct ipu_soc *ipu, uint32_t csi)
int	_ipu_csi_set_mipi_di (struct ipu_soc *ipu, uint32_t num, uint32_t di_val, uint32_t csi)
int	_ipu_csi_set_skip_isp (struct ipu_soc *ipu, uint32_t skip, uint32_t max_ratio, uint32_t csi)
int	_ipu_csi_set_skip_smfc (struct ipu_soc *ipu, uint32_t skip, uint32_t max_ratio, uint32_t id, uint32_t csi)
void	_ipu_smfc_init (struct ipu_soc *ipu, ipu_channel_t channel, uint32_t mipi_id, uint32_t csi)
void	_ipu_smfc_set_wmc (struct ipu_soc *ipu, ipu_channel_t channel, bool set, uint32_t level)
void	_ipu_smfc_set_burst_size (struct ipu_soc *ipu, ipu_channel_t channel, uint32_t bs)
int	_ipu_csi_init (struct ipu_soc *ipu, ipu_channel_t channel, uint32_t csi)
static irqreturn_t	csi_irq_handler (int irq, void *dev_id)
void	_ipu_csi_wait4eof (struct ipu_soc *ipu, ipu_channel_t channel)

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Detailed Description

IPU capture dase functions.

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Function Documentation

void _ipu_csi_ccir_err_detection_disable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_ccir_err_detection_disable Disable error detection and correction for CCIR interlaced mode with protection bit.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

Referenced by ipu_csi_init_interface().

void _ipu_csi_ccir_err_detection_enable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_ccir_err_detection_en Enable error detection and correction for CCIR interlaced mode with protection bit.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

Referenced by ipu_csi_init_interface().

void _ipu_csi_horizontal_downsize_disable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_horizontal_downsize_disable Disable horizontal downsizing(decimation) by 2.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

void _ipu_csi_horizontal_downsize_enable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_horizontal_downsize_enable Enable horizontal downsizing(decimation) by 2.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

int _ipu_csi_init	(	struct ipu_soc *	ipu,
		ipu_channel_t	channel,
		uint32_t	csi
	)

_ipu_csi_init

Parameters:

	ipu	ipu handler
	channel	IDMAC channel
	csi	csi 0 or csi 1

Returns:

Returns 0 on success or negative error code on fail

int _ipu_csi_mclk_set	(	struct ipu_soc *	ipu,
		uint32_t	pixel_clk,
		uint32_t	csi
	)

_ipu_csi_mclk_set

Parameters:

	ipu	ipu handler
	pixel_clk	desired pixel clock frequency in Hz
	csi	csi 0 or csi 1

Returns:

Returns 0 on success or negative error code on fail

Referenced by _ipu_csi_set_test_generator().

int _ipu_csi_set_mipi_di	(	struct ipu_soc *	ipu,
		uint32_t	num,
		uint32_t	di_val,
		uint32_t	csi
	)

_ipu_csi_set_mipi_di

Parameters:

	ipu	ipu handler
	num	MIPI data identifier 0-3 handled by CSI
	di_val	data identifier value
	csi	csi 0 or csi 1

Returns:

Returns 0 on success or negative error code on fail

int _ipu_csi_set_skip_isp	(	struct ipu_soc *	ipu,
		uint32_t	skip,
		uint32_t	max_ratio,
		uint32_t	csi
	)

_ipu_csi_set_skip_isp

Parameters:

	ipu	ipu handler
	skip	select frames to be skipped and set the correspond bits to 1
	max_ratio	number of frames in a skipping set and the maximum value of max_ratio is 5
	csi	csi 0 or csi 1

Returns:

Returns 0 on success or negative error code on fail

int _ipu_csi_set_skip_smfc	(	struct ipu_soc *	ipu,
		uint32_t	skip,
		uint32_t	max_ratio,
		uint32_t	id,
		uint32_t	csi
	)

_ipu_csi_set_skip_smfc

Parameters:

	ipu	ipu handler
	skip	select frames to be skipped and set the correspond bits to 1
	max_ratio	number of frames in a skipping set and the maximum value of max_ratio is 5
	id	csi to smfc skipping id
	csi	csi 0 or csi 1

Returns:

Returns 0 on success or negative error code on fail

void _ipu_csi_set_test_generator	(	struct ipu_soc *	ipu,
		bool	active,
		uint32_t	r_value,
		uint32_t	g_value,
		uint32_t	b_value,
		uint32_t	pix_clk,
		uint32_t	csi
	)

_ipu_csi_set_test_generator

Parameters:

	ipu	ipu handler
	active	1 for active and 0 for inactive
	r_value	red value for the generated pattern of even pixel
	g_value	green value for the generated pattern of even pixel
	b_value	blue value for the generated pattern of even pixel
	pixel_clk	desired pixel clock frequency in Hz
	csi	csi 0 or csi 1

References _ipu_csi_mclk_set().

void _ipu_csi_vertical_downsize_disable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_vertical_downsize_disable Disable vertical downsizing(decimation) by 2.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

void _ipu_csi_vertical_downsize_enable	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

_ipu_csi_vertical_downsize_enable Enable vertical downsizing(decimation) by 2.

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

void _ipu_csi_wait4eof	(	struct ipu_soc *	ipu,
		ipu_channel_t	channel
	)

_ipu_csi_wait4eof

Parameters:

	ipu	ipu handler
	channel	IDMAC channel

References csi_irq_handler().

void _ipu_smfc_init	(	struct ipu_soc *	ipu,
		ipu_channel_t	channel,
		uint32_t	mipi_id,
		uint32_t	csi
	)

_ipu_smfc_init Map CSI frames to IDMAC channels.

Parameters:

	ipu	ipu handler
	channel	IDMAC channel 0-3
	mipi_id	mipi id number 0-3
	csi	csi0 or csi1

void _ipu_smfc_set_burst_size	(	struct ipu_soc *	ipu,
		ipu_channel_t	channel,
		uint32_t	bs
	)

_ipu_smfc_set_burst_size

Parameters:

	ipu	ipu handler
	channel	IDMAC channel 0-3
	bs	burst size of IDMAC channel, the value programmed here shoud be BURST_SIZE-1

void _ipu_smfc_set_wmc	(	struct ipu_soc *	ipu,
		ipu_channel_t	channel,
		bool	set,
		uint32_t	level
	)

_ipu_smfc_set_wmc Caution: The number of required channels, the enabled channels and the FIFO size per channel are configured restrictedly.

Parameters:

	ipu	ipu handler
	channel	IDMAC channel 0-3
	set	set 1 or clear 0
	level	water mark level when FIFO is on the relative size

static irqreturn_t csi_irq_handler	(	int	irq,
		void *	dev_id
	)			[static]

csi_irq_handler

Parameters:

	irq	interrupt id
	dev_id	pointer to ipu handler

Returns:

Returns if irq is handled

References IRQ_HANDLED.

Referenced by _ipu_csi_wait4eof().

int ipu_csi_enable_mclk	(	struct ipu_soc *	ipu,
		int	csi,
		bool	flag,
		bool	wait
	)

ipu_csi_enable_mclk

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1
	flag	true to enable mclk, false to disable mclk
	wait	true to wait 100ms make clock stable, false not wait

Returns:

Returns 0 on success

int32_t ipu_csi_get_sensor_protocol	(	struct ipu_soc *	ipu,
		uint32_t	csi
	)

ipu_csi_get_sensor_protocol

Parameters:

	ipu	ipu handler
	csi	csi 0 or csi 1

Returns:

Returns sensor protocol

void ipu_csi_get_window_size	(	struct ipu_soc *	ipu,
		uint32_t *	width,
		uint32_t *	height,
		uint32_t	csi
	)

ipu_csi_get_window_size

Parameters:

	ipu	ipu handler
	width	pointer to window width
	height	pointer to window height
	csi	csi 0 or csi 1

int32_t ipu_csi_init_interface	(	struct ipu_soc *	ipu,
		uint16_t	width,
		uint16_t	height,
		uint32_t	pixel_fmt,
		ipu_csi_signal_cfg_t	cfg_param
	)

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:

	ipu	ipu handler
	width	Sensor width
	height	Sensor height
	pixel_fmt	pixel format
	cfg_param	ipu_csi_signal_cfg_t structure
	csi	csi 0 or csi 1

Returns:

0 for success, -EINVAL for error

References _ipu_csi_ccir_err_detection_disable(), and _ipu_csi_ccir_err_detection_enable().

void ipu_csi_set_window_pos	(	struct ipu_soc *	ipu,
		uint32_t	left,
		uint32_t	top,
		uint32_t	csi
	)

ipu_csi_set_window_pos

Parameters:

	ipu	ipu handler
	left	uint32 window x start
	top	uint32 window y start
	csi	csi 0 or csi 1

void ipu_csi_set_window_size	(	struct ipu_soc *	ipu,
		uint32_t	width,
		uint32_t	height,
		uint32_t	csi
	)

ipu_csi_set_window_size

Parameters:

	ipu	ipu handler
	width	window width
	height	window height
	csi	csi 0 or csi 1