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/usr/src/linux-headers-5.15.0-181/include/media/

/usr/src/linux-headers-5.15.0-181/include/media

Name	Size	Mode	Actions
davinci/	-	0755	rm
drv-intf/	-	0755	rm
i2c/	-	0755	rm
tpg/	-	0755	rm
cec-notifier.h	5146	0644	edit dl rm
cec-pin.h	2853	0644	edit dl rm
cec.h	16230	0644	edit dl rm
demux.h	23237	0644	edit dl rm
dmxdev.h	6034	0644	edit dl rm
dvb-usb-ids.h	18614	0644	edit dl rm
dvbdev.h	14859	0644	edit dl rm
dvb_ca_en50221.h	4455	0644	edit dl rm
dvb_demux.h	11033	0644	edit dl rm
dvb_frontend.h	30751	0644	edit dl rm
dvb_math.h	1811	0644	edit dl rm
dvb_net.h	2583	0644	edit dl rm
dvb_ringbuffer.h	8524	0644	edit dl rm
dvb_vb2.h	7838	0644	edit dl rm
frame_vector.h	1447	0644	edit dl rm
hevc-ctrls.h	9098	0644	edit dl rm
imx.h	190	0644	edit dl rm
ipu-isys.h	884	0644	edit dl rm
media-dev-allocator.h	2261	0644	edit dl rm
media-device.h	17401	0644	edit dl rm
media-devnode.h	5415	0644	edit dl rm
media-entity.h	36306	0644	edit dl rm
media-request.h	12245	0644	edit dl rm
rc-core.h	12610	0644	edit dl rm
rc-map.h	14704	0644	edit dl rm
rcar-fcp.h	1127	0644	edit dl rm
tuner-types.h	7723	0644	edit dl rm
tuner.h	8603	0644	edit dl rm
tveeprom.h	3370	0644	edit dl rm
v4l2-async.h	11448	0644	edit dl rm
v4l2-common.h	19123	0644	edit dl rm
v4l2-ctrls.h	50854	0644	edit dl rm
v4l2-dev.h	16921	0644	edit dl rm
v4l2-device.h	18964	0644	edit dl rm
v4l2-dv-timings.h	9543	0644	edit dl rm
v4l2-event.h	6130	0644	edit dl rm
v4l2-fh.h	4317	0644	edit dl rm
v4l2-flash-led-class.h	5888	0644	edit dl rm
v4l2-fwnode.h	20279	0644	edit dl rm
v4l2-h264.h	2921	0644	edit dl rm
v4l2-image-sizes.h	827	0644	edit dl rm
v4l2-ioctl.h	34112	0644	edit dl rm
v4l2-jpeg.h	5207	0644	edit dl rm
v4l2-mc.h	7669	0644	edit dl rm
v4l2-mediabus.h	7686	0644	edit dl rm
v4l2-mem2mem.h	29441	0644	edit dl rm
v4l2-rect.h	5852	0644	edit dl rm
v4l2-subdev.h	46004	0644	edit dl rm
videobuf-core.h	6974	0644	edit dl rm
videobuf-dma-contig.h	909	0644	edit dl rm
videobuf-dma-sg.h	2856	0644	edit dl rm
videobuf-vmalloc.h	1166	0644	edit dl rm
videobuf2-core.h	49407	0644	edit dl rm
videobuf2-dma-contig.h	883	0644	edit dl rm
videobuf2-dma-sg.h	698	0644	edit dl rm
videobuf2-dvb.h	1863	0644	edit dl rm
videobuf2-memops.h	1101	0644	edit dl rm
videobuf2-v4l2.h	14347	0644	edit dl rm
videobuf2-vmalloc.h	509	0644	edit dl rm
vsp1.h	3652	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-181/include/media/v4l2-dv-timings.h (9543B)

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * v4l2-dv-timings - Internal header with dv-timings helper functions
 *
 * Copyright 2013 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 */

#ifndef __V4L2_DV_TIMINGS_H
#define __V4L2_DV_TIMINGS_H

#include <linux/videodev2.h>

/**
 * v4l2_calc_timeperframe - helper function to calculate timeperframe based
 *	v4l2_dv_timings fields.
 * @t: Timings for the video mode.
 *
 * Calculates the expected timeperframe using the pixel clock value and
 * horizontal/vertical measures. This means that v4l2_dv_timings structure
 * must be correctly and fully filled.
 */
struct v4l2_fract v4l2_calc_timeperframe(const struct v4l2_dv_timings *t);

/*
 * v4l2_dv_timings_presets: list of all dv_timings presets.
 */
extern const struct v4l2_dv_timings v4l2_dv_timings_presets[];

/**
 * typedef v4l2_check_dv_timings_fnc - timings check callback
 *
 * @t: the v4l2_dv_timings struct.
 * @handle: a handle from the driver.
 *
 * Returns true if the given timings are valid.
 */
typedef bool v4l2_check_dv_timings_fnc(const struct v4l2_dv_timings *t, void *handle);

/**
 * v4l2_valid_dv_timings() - are these timings valid?
 *
 * @t:	  the v4l2_dv_timings struct.
 * @cap: the v4l2_dv_timings_cap capabilities.
 * @fnc: callback to check if this timing is OK. May be NULL.
 * @fnc_handle: a handle that is passed on to @fnc.
 *
 * Returns true if the given dv_timings struct is supported by the
 * hardware capabilities and the callback function (if non-NULL), returns
 * false otherwise.
 */
bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t,
			   const struct v4l2_dv_timings_cap *cap,
			   v4l2_check_dv_timings_fnc fnc,
			   void *fnc_handle);

/**
 * v4l2_enum_dv_timings_cap() - Helper function to enumerate possible DV
 *	 timings based on capabilities
 *
 * @t:	  the v4l2_enum_dv_timings struct.
 * @cap: the v4l2_dv_timings_cap capabilities.
 * @fnc: callback to check if this timing is OK. May be NULL.
 * @fnc_handle: a handle that is passed on to @fnc.
 *
 * This enumerates dv_timings using the full list of possible CEA-861 and DMT
 * timings, filtering out any timings that are not supported based on the
 * hardware capabilities and the callback function (if non-NULL).
 *
 * If a valid timing for the given index is found, it will fill in @t and
 * return 0, otherwise it returns -EINVAL.
 */
int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *t,
			     const struct v4l2_dv_timings_cap *cap,
			     v4l2_check_dv_timings_fnc fnc,
			     void *fnc_handle);

/**
 * v4l2_find_dv_timings_cap() - Find the closest timings struct
 *
 * @t:	  the v4l2_enum_dv_timings struct.
 * @cap: the v4l2_dv_timings_cap capabilities.
 * @pclock_delta: maximum delta between t->pixelclock and the timing struct
 *		under consideration.
 * @fnc: callback to check if a given timings struct is OK. May be NULL.
 * @fnc_handle: a handle that is passed on to @fnc.
 *
 * This function tries to map the given timings to an entry in the
 * full list of possible CEA-861 and DMT timings, filtering out any timings
 * that are not supported based on the hardware capabilities and the callback
 * function (if non-NULL).
 *
 * On success it will fill in @t with the found timings and it returns true.
 * On failure it will return false.
 */
bool v4l2_find_dv_timings_cap(struct v4l2_dv_timings *t,
			      const struct v4l2_dv_timings_cap *cap,
			      unsigned pclock_delta,
			      v4l2_check_dv_timings_fnc fnc,
			      void *fnc_handle);

/**
 * v4l2_find_dv_timings_cea861_vic() - find timings based on CEA-861 VIC
 * @t:		the timings data.
 * @vic:	CEA-861 VIC code
 *
 * On success it will fill in @t with the found timings and it returns true.
 * On failure it will return false.
 */
bool v4l2_find_dv_timings_cea861_vic(struct v4l2_dv_timings *t, u8 vic);

/**
 * v4l2_match_dv_timings() - do two timings match?
 *
 * @measured:	  the measured timings data.
 * @standard:	  the timings according to the standard.
 * @pclock_delta: maximum delta in Hz between standard->pixelclock and
 *		the measured timings.
 * @match_reduced_fps: if true, then fail if V4L2_DV_FL_REDUCED_FPS does not
 * match.
 *
 * Returns true if the two timings match, returns false otherwise.
 */
bool v4l2_match_dv_timings(const struct v4l2_dv_timings *measured,
			   const struct v4l2_dv_timings *standard,
			   unsigned pclock_delta, bool match_reduced_fps);

/**
 * v4l2_print_dv_timings() - log the contents of a dv_timings struct
 * @dev_prefix:device prefix for each log line.
 * @prefix:	additional prefix for each log line, may be NULL.
 * @t:		the timings data.
 * @detailed:	if true, give a detailed log.
 */
void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
			   const struct v4l2_dv_timings *t, bool detailed);

/**
 * v4l2_detect_cvt - detect if the given timings follow the CVT standard
 *
 * @frame_height: the total height of the frame (including blanking) in lines.
 * @hfreq: the horizontal frequency in Hz.
 * @vsync: the height of the vertical sync in lines.
 * @active_width: active width of image (does not include blanking). This
 * information is needed only in case of version 2 of reduced blanking.
 * In other cases, this parameter does not have any effect on timings.
 * @polarities: the horizontal and vertical polarities (same as struct
 *		v4l2_bt_timings polarities).
 * @interlaced: if this flag is true, it indicates interlaced format
 * @cap: the v4l2_dv_timings_cap capabilities.
 * @fmt: the resulting timings.
 *
 * This function will attempt to detect if the given values correspond to a
 * valid CVT format. If so, then it will return true, and fmt will be filled
 * in with the found CVT timings.
 */
bool v4l2_detect_cvt(unsigned int frame_height, unsigned int hfreq,
		     unsigned int vsync, unsigned int active_width,
		     u32 polarities, bool interlaced,
		     const struct v4l2_dv_timings_cap *cap,
		     struct v4l2_dv_timings *fmt);

/**
 * v4l2_detect_gtf - detect if the given timings follow the GTF standard
 *
 * @frame_height: the total height of the frame (including blanking) in lines.
 * @hfreq: the horizontal frequency in Hz.
 * @vsync: the height of the vertical sync in lines.
 * @polarities: the horizontal and vertical polarities (same as struct
 *		v4l2_bt_timings polarities).
 * @interlaced: if this flag is true, it indicates interlaced format
 * @aspect: preferred aspect ratio. GTF has no method of determining the
 *		aspect ratio in order to derive the image width from the
 *		image height, so it has to be passed explicitly. Usually
 *		the native screen aspect ratio is used for this. If it
 *		is not filled in correctly, then 16:9 will be assumed.
 * @cap: the v4l2_dv_timings_cap capabilities.
 * @fmt: the resulting timings.
 *
 * This function will attempt to detect if the given values correspond to a
 * valid GTF format. If so, then it will return true, and fmt will be filled
 * in with the found GTF timings.
 */
bool v4l2_detect_gtf(unsigned int frame_height, unsigned int hfreq,
		     unsigned int vsync, u32 polarities, bool interlaced,
		     struct v4l2_fract aspect,
		     const struct v4l2_dv_timings_cap *cap,
		     struct v4l2_dv_timings *fmt);

/**
 * v4l2_calc_aspect_ratio - calculate the aspect ratio based on bytes
 *	0x15 and 0x16 from the EDID.
 *
 * @hor_landscape: byte 0x15 from the EDID.
 * @vert_portrait: byte 0x16 from the EDID.
 *
 * Determines the aspect ratio from the EDID.
 * See VESA Enhanced EDID standard, release A, rev 2, section 3.6.2:
 * "Horizontal and Vertical Screen Size or Aspect Ratio"
 */
struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait);

/**
 * v4l2_dv_timings_aspect_ratio - calculate the aspect ratio based on the
 *	v4l2_dv_timings information.
 *
 * @t: the timings data.
 */
struct v4l2_fract v4l2_dv_timings_aspect_ratio(const struct v4l2_dv_timings *t);

/**
 * can_reduce_fps - check if conditions for reduced fps are true.
 * @bt: v4l2 timing structure
 *
 * For different timings reduced fps is allowed if the following conditions
 * are met:
 *
 *   - For CVT timings: if reduced blanking v2 (vsync == 8) is true.
 *   - For CEA861 timings: if %V4L2_DV_FL_CAN_REDUCE_FPS flag is true.
 */
static inline  bool can_reduce_fps(struct v4l2_bt_timings *bt)
{
	if ((bt->standards & V4L2_DV_BT_STD_CVT) && (bt->vsync == 8))
		return true;

if ((bt->standards & V4L2_DV_BT_STD_CEA861) &&
	    (bt->flags & V4L2_DV_FL_CAN_REDUCE_FPS))
		return true;

return false;
}

/**
 * struct v4l2_hdmi_colorimetry - describes the HDMI colorimetry information
 * @colorspace:		enum v4l2_colorspace, the colorspace
 * @ycbcr_enc:		enum v4l2_ycbcr_encoding, Y'CbCr encoding
 * @quantization:	enum v4l2_quantization, colorspace quantization
 * @xfer_func:		enum v4l2_xfer_func, colorspace transfer function
 */
struct v4l2_hdmi_colorimetry {
	enum v4l2_colorspace colorspace;
	enum v4l2_ycbcr_encoding ycbcr_enc;
	enum v4l2_quantization quantization;
	enum v4l2_xfer_func xfer_func;
};

struct hdmi_avi_infoframe;
struct hdmi_vendor_infoframe;

struct v4l2_hdmi_colorimetry
v4l2_hdmi_rx_colorimetry(const struct hdmi_avi_infoframe *avi,
			 const struct hdmi_vendor_infoframe *hdmi,
			 unsigned int height);

u16 v4l2_get_edid_phys_addr(const u8 *edid, unsigned int size,
			    unsigned int *offset);
void v4l2_set_edid_phys_addr(u8 *edid, unsigned int size, u16 phys_addr);
u16 v4l2_phys_addr_for_input(u16 phys_addr, u8 input);
int v4l2_phys_addr_validate(u16 phys_addr, u16 *parent, u16 *port);

#endif

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