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| author | Hans Verkuil | 2013-08-19 16:21:50 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2013-08-24 09:30:01 +0200 |
| commit | b8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1 (patch) | |
| tree | 9ab3d196fe8e7633baa8b7bb6726af43d8187710 /drivers/media/v4l2-core/v4l2-dv-timings.c | |
| parent | [media] v4l2-dv-timings: rename v4l2_dv_valid_timings to v4l2_valid_dv_timings (diff) | |
| download | kernel-qcow2-linux-b8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1.tar.gz kernel-qcow2-linux-b8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1.tar.xz kernel-qcow2-linux-b8f0fff4279a1b85fa4b6d7d8b538c254edcb4a1.zip | |
[media] v4l2-dv-timings: add callback to handle exceptions
In most cases the v4l2_bt_timings_cap struct has all the information
necessary to determine valid timings, but occasionally there are exceptions.
Add a callback function to be able to test for those exceptions.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-dv-timings.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-dv-timings.c | 25 |
1 files changed, 17 insertions, 8 deletions
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; } |