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| author |   Jorge Maidana <jorgem.linux@gmail.com> | 2022-05-13 19:29:21 +0100 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-06-20 10:30:30 +0100 |
| commit | 6f0c460fbd7ce67e08ba4c3e1b32e13f842aa800 (patch) | |
| tree | a42553552fe9e65f11b5cc0734650bc5e56a86c4 /drivers/media/pci | |
| parent | media: vivid: add HDMI Video Guard Band control (diff) | |
| download | linux-dev-6f0c460fbd7ce67e08ba4c3e1b32e13f842aa800.tar.xz linux-dev-6f0c460fbd7ce67e08ba4c3e1b32e13f842aa800.zip | |
media: cx88: Fix PAL-Nc standard
* Fix PAL-Nc horizontal parameters according to DScaler:
https://github.com/JohnAdders/DScaler/blob/f7d92b76678e/DScaler/TVFormats.cpp#L88-L94
* Add PAL-Nc TV audio support.
* Tested with CVBS and RF on a Pinnacle PCTV HD 800i.
Signed-off-by: Jorge Maidana <jorgem.linux@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/pci')
| -rw-r--r-- | drivers/media/pci/cx88/cx88-core.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/pci/cx88/cx88-core.c b/drivers/media/pci/cx88/cx88-core.c index 89d4d5a3ba34..52be42f9a7fa 100644 --- a/drivers/media/pci/cx88/cx88-core.c +++ b/drivers/media/pci/cx88/cx88-core.c @@ -618,12 +618,24 @@ EXPORT_SYMBOL(cx88_reset); static inline unsigned int norm_swidth(v4l2_std_id norm) { - return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922; + if (norm & (V4L2_STD_NTSC | V4L2_STD_PAL_M)) + return 754; + + if (norm & V4L2_STD_PAL_Nc) + return 745; + + return 922; } static inline unsigned int norm_hdelay(v4l2_std_id norm) { - return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 135 : 186; + if (norm & (V4L2_STD_NTSC | V4L2_STD_PAL_M)) + return 135; + + if (norm & V4L2_STD_PAL_Nc) + return 149; + + return 186; } static inline unsigned int norm_vdelay(v4l2_std_id norm) @@ -636,7 +648,7 @@ static inline unsigned int norm_fsc8(v4l2_std_id norm) if (norm & V4L2_STD_PAL_M) return 28604892; // 3.575611 MHz - if (norm & (V4L2_STD_PAL_Nc)) + if (norm & V4L2_STD_PAL_Nc) return 28656448; // 3.582056 MHz if (norm & V4L2_STD_NTSC) // All NTSC/M and variants @@ -841,8 +853,8 @@ static int set_tvaudio(struct cx88_core *core) } else if (V4L2_STD_SECAM_DK & norm) { core->tvaudio = WW_DK; - } else if ((V4L2_STD_NTSC_M & norm) || - (V4L2_STD_PAL_M & norm)) { + } else if ((V4L2_STD_NTSC_M | V4L2_STD_PAL_M | V4L2_STD_PAL_Nc) & + norm) { core->tvaudio = WW_BTSC; } else if (V4L2_STD_NTSC_M_JP & norm) { |