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

IPU SDC submodule API functions. More...

Functions
int32_t	ipu_sdc_init_panel (ipu_panel_t panel, uint32_t pixel_clk, uint16_t width, uint16_t height, uint32_t pixel_fmt, uint16_t h_start_width, uint16_t h_sync_width, uint16_t h_end_width, uint16_t v_start_width, uint16_t v_sync_width, uint16_t v_end_width, ipu_di_signal_cfg_t sig)
int32_t	ipu_sdc_set_global_alpha (bool enable, uint8_t alpha)
int32_t	ipu_sdc_set_color_key (ipu_channel_t channel, bool enable, uint32_t color_key)
int32_t	ipu_disp_set_window_pos (ipu_channel_t channel, int16_t x_pos, int16_t y_pos)

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Detailed Description

IPU SDC submodule API functions.

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Function Documentation

int32_t ipu_disp_set_window_pos	(	ipu_channel_t	channel,
		int16_t	x_pos,
		int16_t	y_pos
	)

This function sets the window position of the foreground or background plane. modes.

Parameters:

	channel	Input parameter for the logical channel ID.
	x_pos	The X coordinate position to place window at. The position is relative to the top left corner.
	y_pos	The Y coordinate position to place window at. The position is relative to the top left corner.

Returns:

This function returns 0 on success or negative error code on fail

Referenced by prpvf_start().

int32_t ipu_sdc_init_panel	(	ipu_panel_t	panel,
		uint32_t	pixel_clk,
		uint16_t	width,
		uint16_t	height,
		uint32_t	pixel_fmt,
		uint16_t	h_start_width,
		uint16_t	h_sync_width,
		uint16_t	h_end_width,
		uint16_t	v_start_width,
		uint16_t	v_sync_width,
		uint16_t	v_end_width,
		ipu_di_signal_cfg_t	sig
	)

This function is called to initialize a synchronous LCD panel.

Parameters:

	panel	The type of panel.
	pixel_clk	Desired pixel clock frequency in Hz.
	pixel_fmt	Input parameter for pixel format of buffer. Pixel format is a FOURCC ASCII code.
	width	The width of panel in pixels.
	height	The height of panel in pixels.
	hStartWidth	The number of pixel clocks between the HSYNC signal pulse and the start of valid data.
	hSyncWidth	The width of the HSYNC signal in units of pixel clocks.
	hEndWidth	The number of pixel clocks between the end of valid data and the HSYNC signal for next line.
	vStartWidth	The number of lines between the VSYNC signal pulse and the start of valid data.
	vSyncWidth	The width of the VSYNC signal in units of lines
	vEndWidth	The number of lines between the end of valid data and the VSYNC signal for next frame.
	sig	Bitfield of signal polarities for LCD interface.

Returns:

This function returns 0 on success or negative error code on fail.

int32_t ipu_sdc_set_color_key	(	ipu_channel_t	channel,
		bool	enable,
		uint32_t	color_key
	)

This function sets the transparent color key for SDC graphic plane.

Parameters:

	channel	Input parameter for the logical channel ID.
	enable	Boolean to enable or disable color key
	colorKey	24-bit RGB color to use as transparent color key.

Returns:

This function returns 0 on success or negative error code on fail

Referenced by mxcfb_probe().

int32_t ipu_sdc_set_global_alpha	(	bool	enable,
		uint8_t	alpha
	)

This function sets the foreground and background plane global alpha blending modes.

Parameters:

	enable	Boolean to enable or disable global alpha blending. If disabled, per pixel blending is used.
	alpha	Global alpha value.

Returns:

This function returns 0 on success or negative error code on fail

Referenced by mxcfb_probe().