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V4L/DVB (3275): Allow SAA7134 to fall back to AM sound when there is NICAM-L

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This patch allows to select AM sound even if NICAM is detected.
Proposed by Alain Frappin

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hartmut Hackmann 2006-02-07 06:25:37 -02:00 committed by Mauro Carvalho Chehab
parent 99d33d5012
commit f7d66e82c6
2 changed files with 15 additions and 0 deletions
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14
drivers/media/video/saa7134/saa7134-tvaudio.c
View File

@ -139,6 +139,12 @@ static struct saa7134_tvaudio tvaudio[] = {
.carr1 = 6500,
.carr2 = 5850,
.mode = TVAUDIO_NICAM_AM,
},{
.name = "SECAM-L MONO",
.std = V4L2_STD_SECAM,
.carr1 = 6500,
.carr2 = -1,
.mode = TVAUDIO_AM_MONO,
},{
.name = "SECAM-D/K",
.std = V4L2_STD_SECAM,
@ -334,6 +340,12 @@ static void tvaudio_setmode(struct saa7134_dev *dev,
saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa1);
saa_writeb(SAA7134_NICAM_CONFIG, 0x00);
break;
case TVAUDIO_AM_MONO:
saa_writeb(SAA7134_DEMODULATOR, 0x12);
saa_writeb(SAA7134_DCXO_IDENT_CTRL, 0x00);
saa_writeb(SAA7134_FM_DEEMPHASIS, 0x44);
saa_writeb(SAA7134_STEREO_DAC_OUTPUT_SELECT, 0xa0);
break;
case TVAUDIO_FM_SAT_STEREO:
/* not implemented (yet) */
break;
@ -414,6 +426,7 @@ static int tvaudio_getstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *au
switch (audio->mode) {
case TVAUDIO_FM_MONO:
case TVAUDIO_AM_MONO:
return V4L2_TUNER_SUB_MONO;
case TVAUDIO_FM_K_STEREO:
case TVAUDIO_FM_BG_STEREO:
@ -480,6 +493,7 @@ static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *au
switch (audio->mode) {
case TVAUDIO_FM_MONO:
case TVAUDIO_AM_MONO:
/* nothing to do ... */
break;
case TVAUDIO_FM_K_STEREO:

1
drivers/media/video/saa7134/saa7134.h
View File

@ -60,6 +60,7 @@ enum saa7134_tvaudio_mode {
TVAUDIO_FM_K_STEREO = 4,
TVAUDIO_NICAM_AM = 5,
TVAUDIO_NICAM_FM = 6,
TVAUDIO_AM_MONO = 7
};
enum saa7134_audio_in {