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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2015-09-30 02:28:52 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-09-30 02:28:52 +0300
commit8f697e574012cc73b6b0dcbf30d88a3a0f43b78f (patch)
treea6b16bcf33ad08e03837b61eed2fffb31118f1f3 /include/media/v4l2-dv-timings.h
parent221bcb24c6530be17468fdcdbf91299aba32a693 (diff)
parent9ffecb10283508260936b96022d4ee43a7798b4c (diff)
downloadlinux-8f697e574012cc73b6b0dcbf30d88a3a0f43b78f.tar.xz
Merge tag 'v4.3-rc3' into next
Merge with Linux 4.3-rc3 to bring in MFD DA9062 changes to merge DA9062 OnKey driver.
Diffstat (limited to 'include/media/v4l2-dv-timings.h')
-rw-r--r--include/media/v4l2-dv-timings.h141
1 files changed, 82 insertions, 59 deletions
diff --git a/include/media/v4l2-dv-timings.h b/include/media/v4l2-dv-timings.h
index eecd3102a618..b6130b50a0f1 100644
--- a/include/media/v4l2-dv-timings.h
+++ b/include/media/v4l2-dv-timings.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.
*
@@ -35,86 +38,101 @@ 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.
+ * @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
@@ -125,9 +143,12 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
* in with the found CVT timings.
*/
bool v4l2_detect_cvt(unsigned frame_height, unsigned hfreq, unsigned vsync,
- u32 polarities, bool interlaced, 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
+/**
+ * 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.
@@ -149,8 +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.
*