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V4L/DVB (4002): Adjust VBI offset to match value reported in VBI format

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The actual offset of the start of VBI data is incorrectly documented for both
the cx2388x and bt8x8.  For the cx2388x, it appears to be about 220 to 224 +
VBI_V_DEL*2.  The driver has been incorrectly reporting an offset of 244.
This patch adjusts VBI_V_DEL to 10, so that the offset of 244 is correct.
This is the same offset as the bttv driver, and expected by some software.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Trent Piepho 2006-05-23 23:54:44 -03:00 committed by Mauro Carvalho Chehab
parent 419ac5d466
commit 3eb7317055
1 changed files with 3 additions and 3 deletions
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6
drivers/media/video/cx88/cx88-core.c
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@ -932,9 +932,9 @@ int cx88_set_tvnorm(struct cx88_core *core, struct cx88_tvnorm *norm)
htotal, cx_read(MO_HTOTAL), (u32)tmp64);
cx_write(MO_HTOTAL, htotal);
// vbi stuff
cx_write(MO_VBI_PACKET, ((1 << 11) | /* (norm_vdelay(norm) << 11) | */
norm_vbipack(norm)));
// vbi stuff, set vbi offset to 10 (for 20 Clk*2 pixels), this makes
// the effective vbi offset ~244 samples, the same as the Bt8x8
cx_write(MO_VBI_PACKET, (10<<11) | norm_vbipack(norm));
// this is needed as well to set all tvnorm parameter
cx88_set_scale(core, 320, 240, V4L2_FIELD_INTERLACED);