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V4L/DVB: cx18: Add support for component video inputs 

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-03-13 16:40:03 -03:00 committed by Mauro Carvalho Chehab
parent c6ebc6c4ac
commit d9a325a865
4 changed files with 51 additions and 7 deletions
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33
drivers/media/video/cx18/cx18-av-core.c
View File

@ -579,6 +579,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
u8 afe_mux_cfg;
u8 adc2_cfg;
u8 input_mode;
u32 afe_cfg;
int i;
@ -589,6 +590,30 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
vid_input <= CX18_AV_COMPOSITE8) {
afe_mux_cfg = 0xf0 + (vid_input - CX18_AV_COMPOSITE1);
ch[0] = CVBS;
input_mode = 0x0;
} else if (vid_input >= CX18_AV_COMPONENT_LUMA1) {
int luma = vid_input & 0xf000;
int r_chroma = vid_input & 0xf0000;
int b_chroma = vid_input & 0xf00000;
if ((vid_input & ~0xfff000) ||
luma < CX18_AV_COMPONENT_LUMA1 ||
luma > CX18_AV_COMPONENT_LUMA8 ||
r_chroma < CX18_AV_COMPONENT_R_CHROMA4 ||
r_chroma > CX18_AV_COMPONENT_R_CHROMA6 ||
b_chroma < CX18_AV_COMPONENT_B_CHROMA7 ||
b_chroma > CX18_AV_COMPONENT_B_CHROMA8) {
CX18_ERR_DEV(sd, "0x%06x is not a valid video input!\n",
vid_input);
return -EINVAL;
}
afe_mux_cfg = (luma - CX18_AV_COMPONENT_LUMA1) >> 12;
ch[0] = Y;
afe_mux_cfg |= (r_chroma - CX18_AV_COMPONENT_R_CHROMA4) >> 12;
ch[1] = Pr;
afe_mux_cfg |= (b_chroma - CX18_AV_COMPONENT_B_CHROMA7) >> 14;
ch[2] = Pb;
input_mode = 0x6;
} else {
int luma = vid_input & 0xf0;
int chroma = vid_input & 0xf00;
@ -598,7 +623,7 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
luma > CX18_AV_SVIDEO_LUMA8 ||
chroma < CX18_AV_SVIDEO_CHROMA4 ||
chroma > CX18_AV_SVIDEO_CHROMA8) {
CX18_ERR_DEV(sd, "0x%04x is not a valid video input!\n",
CX18_ERR_DEV(sd, "0x%06x is not a valid video input!\n",
vid_input);
return -EINVAL;
}
@ -613,8 +638,8 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
afe_mux_cfg |= (chroma - CX18_AV_SVIDEO_CHROMA4) >> 4;
ch[1] = C;
}
input_mode = 0x2;
}
/* TODO: LeadTek WinFast DVR3100 H & WinFast PVR2100 can do Y/Pb/Pr */
switch (aud_input) {
case CX18_AV_AUDIO_SERIAL1:
@ -650,8 +675,8 @@ static int set_input(struct cx18 *cx, enum cx18_av_video_input vid_input,
/* Set up analog front end multiplexers */
cx18_av_write_expect(cx, 0x103, afe_mux_cfg, afe_mux_cfg, 0xf7);
/* Set INPUT_MODE to Composite (0) or S-Video (1) */
cx18_av_and_or(cx, 0x401, ~0x6, ch[0] == CVBS ? 0 : 0x02);
/* Set INPUT_MODE to Composite, S-Video, or Component */
cx18_av_and_or(cx, 0x401, ~0x6, input_mode);
/* Set CH_SEL_ADC2 to 1 if input comes from CH3 */
adc2_cfg = cx18_av_read(cx, 0x102);

19
drivers/media/video/cx18/cx18-av-core.h
View File

@ -61,6 +61,25 @@ enum cx18_av_video_input {
CX18_AV_SVIDEO2 = 0x620,
CX18_AV_SVIDEO3 = 0x730,
CX18_AV_SVIDEO4 = 0x840,
/* Component Video inputs consist of one luma input (In1-In8) ORed
with a red chroma (In4-In6) and blue chroma input (In7-In8) */
CX18_AV_COMPONENT_LUMA1 = 0x1000,
CX18_AV_COMPONENT_LUMA2 = 0x2000,
CX18_AV_COMPONENT_LUMA3 = 0x3000,
CX18_AV_COMPONENT_LUMA4 = 0x4000,
CX18_AV_COMPONENT_LUMA5 = 0x5000,
CX18_AV_COMPONENT_LUMA6 = 0x6000,
CX18_AV_COMPONENT_LUMA7 = 0x7000,
CX18_AV_COMPONENT_LUMA8 = 0x8000,
CX18_AV_COMPONENT_R_CHROMA4 = 0x40000,
CX18_AV_COMPONENT_R_CHROMA5 = 0x50000,
CX18_AV_COMPONENT_R_CHROMA6 = 0x60000,
CX18_AV_COMPONENT_B_CHROMA7 = 0x700000,
CX18_AV_COMPONENT_B_CHROMA8 = 0x800000,
/* Component Video aliases for common combinations */
CX18_AV_COMPONENT1 = 0x861000,
};
enum cx18_av_audio_input {

2
drivers/media/video/cx18/cx18-cards.c
View File

@ -480,7 +480,7 @@ int cx18_get_input(struct cx18 *cx, u16 index, struct v4l2_input *input)
"S-Video 2",
"Composite 1",
"Composite 2",
"Composite 3"
"Component 1"
};
memset(input, 0, sizeof(*input));

4
drivers/media/video/cx18/cx18-cards.h
View File

@ -43,7 +43,7 @@
#define CX18_CARD_INPUT_SVIDEO2 3
#define CX18_CARD_INPUT_COMPOSITE1 4
#define CX18_CARD_INPUT_COMPOSITE2 5
#define CX18_CARD_INPUT_COMPOSITE3 6
#define CX18_CARD_INPUT_COMPONENT1 6
/* audio inputs */
#define CX18_CARD_INPUT_AUD_TUNER 1
@ -62,7 +62,7 @@
struct cx18_card_video_input {
u8 video_type; /* video input type */
u8 audio_index; /* index in cx18_card_audio_input array */
u16 video_input; /* hardware video input */
u32 video_input; /* hardware video input */
};
struct cx18_card_audio_input {