diff options
| -rw-r--r-- | drivers/media/i2c/ad9389b.c | 7 | ||||
| -rw-r--r-- | drivers/media/i2c/ths8200.c | 9 | ||||
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dv-timings.c | 25 | ||||
| -rw-r--r-- | include/media/v4l2-dv-timings.h | 34 |
4 files changed, 55 insertions, 20 deletions
diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c index fc608516fc43..836978602973 100644 --- a/drivers/media/i2c/ad9389b.c +++ b/drivers/media/i2c/ad9389b.c @@ -648,12 +648,12 @@ static int ad9389b_s_dv_timings(struct v4l2_subdev *sd, v4l2_dbg(1, debug, sd, "%s:\n", __func__); /* quick sanity check */ - if (!v4l2_valid_dv_timings(timings, &ad9389b_timings_cap)) + if (!v4l2_valid_dv_timings(timings, &ad9389b_timings_cap, NULL, NULL)) return -EINVAL; /* Fill the optional fields .standards and .flags in struct v4l2_dv_timings if the format is one of the CEA or DMT timings. */ - v4l2_find_dv_timings_cap(timings, &ad9389b_timings_cap, 0); + v4l2_find_dv_timings_cap(timings, &ad9389b_timings_cap, 0, NULL, NULL); timings->bt.flags &= ~V4L2_DV_FL_REDUCED_FPS; @@ -691,7 +691,8 @@ static int ad9389b_g_dv_timings(struct v4l2_subdev *sd, static int ad9389b_enum_dv_timings(struct v4l2_subdev *sd, struct v4l2_enum_dv_timings *timings) { - return v4l2_enum_dv_timings_cap(timings, &ad9389b_timings_cap); + return v4l2_enum_dv_timings_cap(timings, &ad9389b_timings_cap, + NULL, NULL); } static int ad9389b_dv_timings_cap(struct v4l2_subdev *sd, diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c index 6abf0fb36079..a58a8f663ffb 100644 --- a/drivers/media/i2c/ths8200.c +++ b/drivers/media/i2c/ths8200.c @@ -378,10 +378,12 @@ static int ths8200_s_dv_timings(struct v4l2_subdev *sd, v4l2_dbg(1, debug, sd, "%s:\n", __func__); - if (!v4l2_valid_dv_timings(timings, &ths8200_timings_cap)) + if (!v4l2_valid_dv_timings(timings, &ths8200_timings_cap, + NULL, NULL)) return -EINVAL; - if (!v4l2_find_dv_timings_cap(timings, &ths8200_timings_cap, 10)) { + if (!v4l2_find_dv_timings_cap(timings, &ths8200_timings_cap, 10, + NULL, NULL)) { v4l2_dbg(1, debug, sd, "Unsupported format\n"); return -EINVAL; } @@ -411,7 +413,8 @@ static int ths8200_g_dv_timings(struct v4l2_subdev *sd, static int ths8200_enum_dv_timings(struct v4l2_subdev *sd, struct v4l2_enum_dv_timings *timings) { - return v4l2_enum_dv_timings_cap(timings, &ths8200_timings_cap); + return v4l2_enum_dv_timings_cap(timings, &ths8200_timings_cap, + NULL, NULL); } static int ths8200_dv_timings_cap(struct v4l2_subdev *sd, diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c index a77f20145881..ee52b9f4a944 100644 --- a/drivers/media/v4l2-core/v4l2-dv-timings.c +++ b/drivers/media/v4l2-core/v4l2-dv-timings.c @@ -132,7 +132,9 @@ const struct v4l2_dv_timings v4l2_dv_timings_presets[] = { EXPORT_SYMBOL_GPL(v4l2_dv_timings_presets); bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t, - const struct v4l2_dv_timings_cap *dvcap) + const struct v4l2_dv_timings_cap *dvcap, + v4l2_check_dv_timings_fnc fnc, + void *fnc_handle) { const struct v4l2_bt_timings *bt = &t->bt; const struct v4l2_bt_timings_cap *cap = &dvcap->bt; @@ -151,18 +153,21 @@ bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *t, (bt->interlaced && !(caps & V4L2_DV_BT_CAP_INTERLACED)) || (!bt->interlaced && !(caps & V4L2_DV_BT_CAP_PROGRESSIVE))) return false; - return true; + return fnc == NULL || fnc(t, fnc_handle); } EXPORT_SYMBOL_GPL(v4l2_valid_dv_timings); int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *t, - const struct v4l2_dv_timings_cap *cap) + const struct v4l2_dv_timings_cap *cap, + v4l2_check_dv_timings_fnc fnc, + void *fnc_handle) { u32 i, idx; memset(t->reserved, 0, sizeof(t->reserved)); for (i = idx = 0; v4l2_dv_timings_presets[i].bt.width; i++) { - if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap) && + if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap, + fnc, fnc_handle) && idx++ == t->index) { t->timings = v4l2_dv_timings_presets[i]; return 0; @@ -174,16 +179,20 @@ EXPORT_SYMBOL_GPL(v4l2_enum_dv_timings_cap); bool v4l2_find_dv_timings_cap(struct v4l2_dv_timings *t, const struct v4l2_dv_timings_cap *cap, - unsigned pclock_delta) + unsigned pclock_delta, + v4l2_check_dv_timings_fnc fnc, + void *fnc_handle) { int i; - if (!v4l2_valid_dv_timings(t, cap)) + if (!v4l2_valid_dv_timings(t, cap, fnc, fnc_handle)) return false; for (i = 0; i < v4l2_dv_timings_presets[i].bt.width; i++) { - if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap) && - v4l2_match_dv_timings(t, v4l2_dv_timings_presets + i, pclock_delta)) { + if (v4l2_valid_dv_timings(v4l2_dv_timings_presets + i, cap, + fnc, fnc_handle) && + v4l2_match_dv_timings(t, v4l2_dv_timings_presets + i, + pclock_delta)) { *t = v4l2_dv_timings_presets[i]; return true; } diff --git a/include/media/v4l2-dv-timings.h b/include/media/v4l2-dv-timings.h index bd59df8125c6..4becc6716393 100644 --- a/include/media/v4l2-dv-timings.h +++ b/include/media/v4l2-dv-timings.h @@ -27,46 +27,68 @@ */ extern const struct v4l2_dv_timings v4l2_dv_timings_presets[]; +/** 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, returns false otherwise. + * 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); + 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. + * 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); + 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. + * 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); + 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. |