diff options
| author | istvan_v@mailbox.hu <istvan_v@mailbox.hu> | 2011-07-11 11:07:43 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-07-27 17:56:01 -0300 |
| commit | bded70d296a976da1b52ff5d7f574551fbc503bb (patch) | |
| tree | a18cb19387be5d3384edec9624ccd67f07238ce3 /drivers/media/video/cx88/cx88-core.c | |
| parent | eea16e3661f7177ba106780a2f6cbf373d73bab1 (diff) | |
| download | lwn-bded70d296a976da1b52ff5d7f574551fbc503bb.tar.gz lwn-bded70d296a976da1b52ff5d7f574551fbc503bb.zip | |
[media] cx88: implemented luma notch filter control
The following patch adds a new control that makes it possible to set the
luma notch filter type to finetune picture quality.
Signed-off-by: Istvan Varga <istvan_v@mailbox.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx88/cx88-core.c')
| -rw-r--r-- | drivers/media/video/cx88/cx88-core.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c index 20ad809568cf..fbcaa1c5b09d 100644 --- a/drivers/media/video/cx88/cx88-core.c +++ b/drivers/media/video/cx88/cx88-core.c @@ -636,6 +636,9 @@ int cx88_reset(struct cx88_core *core) cx_write(MO_PCI_INTSTAT, 0xFFFFFFFF); // Clear PCI int cx_write(MO_INT1_STAT, 0xFFFFFFFF); // Clear RISC int + /* set default notch filter */ + cx_andor(MO_HTOTAL, 0x1800, (HLNotchFilter4xFsc << 11)); + /* Reset on-board parts */ cx_write(MO_SRST_IO, 0); msleep(10); @@ -994,10 +997,10 @@ int cx88_set_tvnorm(struct cx88_core *core, v4l2_std_id norm) // htotal tmp64 = norm_htotal(norm) * (u64)vdec_clock; do_div(tmp64, fsc8); - htotal = (u32)tmp64 | (HLNotchFilter4xFsc << 11); + htotal = (u32)tmp64; dprintk(1,"set_tvnorm: MO_HTOTAL 0x%08x [old=0x%08x,htotal=%d]\n", htotal, cx_read(MO_HTOTAL), (u32)tmp64); - cx_write(MO_HTOTAL, htotal); + cx_andor(MO_HTOTAL, 0x07ff, htotal); // 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 |