diff options
| author | Christopher Neufeld <television@cneufeld.ca> | 2006-05-24 17:16:45 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-25 09:05:00 +0400 |
| commit | 3e3bf277f1d2487307227e2c5329763cf3af44bc (patch) | |
| tree | 9e3534c6279437c7520feca3725e3e5d20246147 /drivers/media/video/cx25840 | |
| parent | 88ca8ed0b7f2f04a055ff3c389f398ba3ad3d27d (diff) | |
| download | linux-3e3bf277f1d2487307227e2c5329763cf3af44bc.tar.xz | |
V4L/DVB (4050): Add NTSC sliced VBI support to the cx25840 module.
NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca>
with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>.
Signed-off-by: Christopher Neufeld <television@cneufeld.ca>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/cx25840')
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-core.c | 4 | ||||
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-core.h | 1 | ||||
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-vbi.c | 24 |
3 files changed, 24 insertions, 5 deletions
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index e4655e3c2520..6d7207e67d6f 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -10,6 +10,9 @@ * * VBI support by Hans Verkuil <hverkuil@xs4all.nl>. * + * NTSC sliced VBI support by Christopher Neufeld <television@cneufeld.ca> + * with additional fixes by Hans Verkuil <hverkuil@xs4all.nl>. + * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 @@ -982,6 +985,7 @@ static int cx25840_detect_client(struct i2c_adapter *adapter, int address, state->audclk_freq = 48000; state->pvr150_workaround = 0; state->audmode = V4L2_TUNER_MODE_LANG1; + state->vbi_line_offset = 8; state->id = id; if (state->is_cx25836) diff --git a/drivers/media/video/cx25840/cx25840-core.h b/drivers/media/video/cx25840/cx25840-core.h index 69d7bd2bcb29..b1321920dfe7 100644 --- a/drivers/media/video/cx25840/cx25840-core.h +++ b/drivers/media/video/cx25840/cx25840-core.h @@ -40,6 +40,7 @@ struct cx25840_state { enum cx25840_audio_input aud_input; u32 audclk_freq; int audmode; + int vbi_line_offset; enum v4l2_chip_ident id; int is_cx25836; }; diff --git a/drivers/media/video/cx25840/cx25840-vbi.c b/drivers/media/video/cx25840/cx25840-vbi.c index 57feca288d2b..c124974c55b1 100644 --- a/drivers/media/video/cx25840/cx25840-vbi.c +++ b/drivers/media/video/cx25840/cx25840-vbi.c @@ -84,6 +84,7 @@ static int decode_vps(u8 * dst, u8 * p) void cx25840_vbi_setup(struct i2c_client *client) { + struct cx25840_state *state = i2c_get_clientdata(client); v4l2_std_id std = cx25840_get_v4lstd(client); if (std & ~V4L2_STD_NTSC) { @@ -117,6 +118,7 @@ void cx25840_vbi_setup(struct i2c_client *client) cx25840_write(client, 0x47e, 0x0a); cx25840_write(client, 0x47f, 0x01); + state->vbi_line_offset = 5; } else { /* datasheet startup, step 8d */ cx25840_write(client, 0x49f, 0x14); @@ -140,11 +142,13 @@ void cx25840_vbi_setup(struct i2c_client *client) cx25840_write(client, 0x47d, 0x7c); cx25840_write(client, 0x47e, 0x08); cx25840_write(client, 0x47f, 0x00); + state->vbi_line_offset = 8; } } int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) { + struct cx25840_state *state = i2c_get_clientdata(client); struct v4l2_format *fmt; struct v4l2_sliced_vbi_format *svbi; @@ -211,7 +215,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) cx25840_vbi_setup(client); /* Sliced VBI */ - cx25840_write(client, 0x404, 0x36); /* Ancillery data */ + cx25840_write(client, 0x404, 0x32); /* Ancillary data */ cx25840_write(client, 0x406, 0x13); cx25840_write(client, 0x47f, vbi_offset); @@ -248,8 +252,18 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) } } - for (x = 1, i = 0x424; i <= 0x434; i++, x++) { - cx25840_write(client, i, lcr[6 + x]); + if (is_pal) { + for (x = 1, i = 0x424; i <= 0x434; i++, x++) { + cx25840_write(client, i, lcr[6 + x]); + } + } + else { + for (x = 1, i = 0x424; i <= 0x430; i++, x++) { + cx25840_write(client, i, lcr[9 + x]); + } + for (i = 0x431; i <= 0x434; i++) { + cx25840_write(client, i, 0); + } } cx25840_write(client, 0x43c, 0x16); @@ -257,7 +271,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) if (is_pal) { cx25840_write(client, 0x474, 0x2a); } else { - cx25840_write(client, 0x474, 0x1a + 6); + cx25840_write(client, 0x474, 0x22); } break; } @@ -278,7 +292,7 @@ int cx25840_vbi(struct i2c_client *client, unsigned int cmd, void *arg) id1 = p[-1]; id2 = p[0] & 0xf; l = p[2] & 0x3f; - l += 5; + l += state->vbi_line_offset; p += 4; switch (id2) { |