Commit 506bb54b authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab

[media] v4l-dv-timings.h: Add to device-drivers DocBook

There are already markups for documentation at v4l-dv-timings.h,
however, they're not properly formatted.

Convert them to the right format and add this file to
the device-drivers DocBook.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: default avatarJonathan Corbet <corbet@lwn.net>
parent b6fce850
......@@ -233,8 +233,8 @@ X!Isound/sound_firmware.c
!Idrivers/media/dvb-core/dvb_ringbuffer.h
!Iinclude/media/v4l2-ctrls.h
!Iinclude/media/v4l2-event.h
!Iinclude/media/v4l2-dv-timings.h
<!-- FIXME: Removed for now due to document generation inconsistency
X!Iinclude/media/v4l2-dv-timings.h
X!Iinclude/media/v4l2-mediabus.h
X!Iinclude/media/videobuf2-memops.h
X!Iinclude/media/videobuf2-core.h
......
......@@ -23,11 +23,14 @@
#include <linux/videodev2.h>
/** v4l2_dv_timings_presets: list of all dv_timings presets.
/**
* v4l2_dv_timings_presets: list of all dv_timings presets.
*/
extern const struct v4l2_dv_timings v4l2_dv_timings_presets[];
/** v4l2_check_dv_timings_fnc - timings check callback
/**
* v4l2_check_dv_timings_fnc - timings check callback
*
* @t: the v4l2_dv_timings struct.
* @handle: a handle from the driver.
*
......@@ -35,83 +38,95 @@ extern const struct v4l2_dv_timings v4l2_dv_timings_presets[];
*/
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.
*/
/**
* 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.
*/
/**
* 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.
*/
/**
* 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_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.
*
* Returns true if the two timings match, returns false otherwise.
*/
/**
* 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.
*
* 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);
/** 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.
*/
/**
* 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
/**
* 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.
......@@ -131,7 +146,9 @@ bool v4l2_detect_cvt(unsigned frame_height, unsigned hfreq, unsigned vsync,
unsigned active_width, u32 polarities, bool interlaced,
struct v4l2_dv_timings *fmt);
/** v4l2_detect_gtf - detect if the given timings follow the GTF standard
/**
* 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.
......@@ -153,8 +170,10 @@ bool v4l2_detect_gtf(unsigned frame_height, unsigned hfreq, unsigned vsync,
u32 polarities, bool interlaced, struct v4l2_fract aspect,
struct v4l2_dv_timings *fmt);
/** v4l2_calc_aspect_ratio - calculate the aspect ratio based on bytes
/**
* 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.
*
......
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