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V4L/DVB (13206): cx25840: add component support

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Signed-off-by: David T.L. Wong <davidtlwong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
David T.L. Wong 2009-10-20 12:13:39 -03:00 committed by Mauro Carvalho Chehab
parent 184e769f93
commit fb29ab9698
2 changed files with 25 additions and 12 deletions
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30
drivers/media/video/cx25840/cx25840-core.c
View File

@ -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) {
@ -768,7 +768,10 @@ 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) */
/* 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)) {
@ -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
} 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;

1
include/media/cx25840.h
View File

@ -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 {