#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.
*
*/
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
- * @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_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).
- * @fmt - the resulting timings.
+ * @interlaced: if this flag is true, it indicates interlaced format
+ * @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 frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, struct v4l2_dv_timings *fmt);
+ unsigned active_width, u32 polarities, bool interlaced,
+ 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_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).
- * @aspect - preferred aspect ratio. GTF has no method of determining the
+ * @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.
- * @fmt - the resulting timings.
+ * @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 frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, struct v4l2_fract aspect,
+ 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.
+ *
+ * @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:
Code Review / kvmfornfv.git / blobdiff