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| author | David T.L. Wong <davidtlwong@gmail.com> | 2009-10-20 12:13:39 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:40:52 -0200 |
| commit | fb29ab96982baba57b03636e2a894c0d0acd197e (patch) | |
| tree | c035f1fc9b0f5ca9d0192b4861ce10d11367edf4 | |
| parent | 184e769f93e734ced24c948ea02e3d541c45c766 (diff) | |
| download | lwn-fb29ab96982baba57b03636e2a894c0d0acd197e.tar.gz lwn-fb29ab96982baba57b03636e2a894c0d0acd197e.zip | |
V4L/DVB (13206): cx25840: add component support
Signed-off-by: David T.L. Wong <davidtlwong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/cx25840/cx25840-core.c | 36 | ||||
| -rw-r--r-- | include/media/cx25840.h | 1 |
2 files changed, 25 insertions, 12 deletions
diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 904e9a5a9065..9702a9334b4a 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -703,6 +703,10 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp struct cx25840_state *state = to_state(i2c_get_clientdata(client)); u8 is_composite = (vid_input >= CX25840_COMPOSITE1 && vid_input <= CX25840_COMPOSITE8); + u8 is_component = (vid_input & CX25840_COMPONENT_ON) == + CX25840_COMPONENT_ON; + int luma = vid_input & 0xf0; + int chroma = vid_input & 0xf00; u8 reg; v4l_dbg(1, cx25840_debug, client, @@ -715,18 +719,14 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp reg = vid_input & 0xff; if ((vid_input & CX25840_SVIDEO_ON) == CX25840_SVIDEO_ON) is_composite = 0; - else + else if ((vid_input & CX25840_COMPONENT_ON) == 0) is_composite = 1; v4l_dbg(1, cx25840_debug, client, "mux cfg 0x%x comp=%d\n", reg, is_composite); - } else - if (is_composite) { + } else if (is_composite) { reg = 0xf0 + (vid_input - CX25840_COMPOSITE1); } else { - int luma = vid_input & 0xf0; - int chroma = vid_input & 0xf00; - if ((vid_input & ~0xff0) || luma < CX25840_SVIDEO_LUMA1 || luma > CX25840_SVIDEO_LUMA8 || chroma < CX25840_SVIDEO_CHROMA4 || chroma > CX25840_SVIDEO_CHROMA8) { @@ -768,8 +768,11 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp cx25840_write(client, 0x103, reg); - /* Set INPUT_MODE to Composite (0) or S-Video (1) */ - cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02); + /* Set INPUT_MODE to Composite, S-Video or Component */ + if (is_component) + cx25840_and_or(client, 0x401, ~0x6, 0x6); + else + cx25840_and_or(client, 0x401, ~0x6, is_composite ? 0 : 0x02); if (!is_cx2388x(state) && !is_cx231xx(state)) { /* Set CH_SEL_ADC2 to 1 if input comes from CH3 */ @@ -780,12 +783,21 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp else cx25840_and_or(client, 0x102, ~0x4, 0); } else { - if (is_composite) + /* Set DUAL_MODE_ADC2 to 1 if component*/ + cx25840_and_or(client, 0x102, ~0x4, is_component ? 0x4 : 0x0); + if (is_composite) { /* ADC2 input select channel 2 */ cx25840_and_or(client, 0x102, ~0x2, 0); - else - /* ADC2 input select channel 3 */ - cx25840_and_or(client, 0x102, ~0x2, 2); + } else if (!is_component) { + /* S-Video */ + if (chroma >= CX25840_SVIDEO_CHROMA7) { + /* ADC2 input select channel 3 */ + cx25840_and_or(client, 0x102, ~0x2, 2); + } else { + /* ADC2 input select channel 2 */ + cx25840_and_or(client, 0x102, ~0x2, 0); + } + } } state->vid_input = vid_input; diff --git a/include/media/cx25840.h b/include/media/cx25840.h index 2c3fbaa33f74..0b0cb1776796 100644 --- a/include/media/cx25840.h +++ b/include/media/cx25840.h @@ -84,6 +84,7 @@ enum cx25840_video_input { CX25840_NONE0_CH3 = 0x80000080, CX25840_NONE1_CH3 = 0x800000c0, CX25840_SVIDEO_ON = 0x80000100, + CX25840_COMPONENT_ON = 0x80000200, }; enum cx25840_audio_input { |