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V4L/DVB (3584): Implement V4L2_TUNER_MODE_LANG1_LANG2 audio mode
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Add a new audio mode V4L2_TUNER_MODE_LANG1_LANG2 (used by VIDIOC_G/S_TUNER).
This mode allows the user to select both languages of a bilingual transmission,
one language on the left, one on the right audio channel. If there is no
bilingual transmission, or it is not supported, then this mode should act like
V4L2_TUNER_MODE_STEREO.
This mode is introduced for PVR-like drivers where it is useful to be able to
record both languages of a bilingual broadcast.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Hans Verkuil authored and Mauro Carvalho Chehab committed Mar 24, 2006
1 parent 2474ed4 commit 301e22d
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Showing 9 changed files with 29 additions and 5 deletions.
5 changes: 5 additions & 0 deletions drivers/media/dvb/ttpci/av7110_v4l.c
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Expand Up @@ -369,6 +369,11 @@ static int av7110_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
fm_matrix = 0x3001; // stereo
src = 0x0020;
break;
case V4L2_TUNER_MODE_LANG1_LANG2:
dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1_LANG2\n");
fm_matrix = 0x3000; // bilingual
src = 0x0020;
break;
case V4L2_TUNER_MODE_LANG1:
dprintk(2, "VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1\n");
fm_matrix = 0x3000; // mono
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3 changes: 2 additions & 1 deletion drivers/media/video/bt8xx/bttv-driver.c
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Expand Up @@ -1878,7 +1878,8 @@ static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va);
if (t->audmode == V4L2_TUNER_MODE_MONO)
va.mode = VIDEO_SOUND_MONO;
else if (t->audmode == V4L2_TUNER_MODE_STEREO)
else if (t->audmode == V4L2_TUNER_MODE_STEREO ||
t->audmode == V4L2_TUNER_MODE_LANG1_LANG2)
va.mode = VIDEO_SOUND_STEREO;
else if (t->audmode == V4L2_TUNER_MODE_LANG1)
va.mode = VIDEO_SOUND_LANG1;
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5 changes: 3 additions & 2 deletions drivers/media/video/cx25840/cx25840-core.c
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Expand Up @@ -810,21 +810,22 @@ static int cx25840_command(struct i2c_client *client, unsigned int cmd,
bilingual -> lang1 */
cx25840_and_or(client, 0x809, ~0xf, 0x00);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1:
/* mono -> mono
stereo -> stereo
bilingual -> lang1 */
cx25840_and_or(client, 0x809, ~0xf, 0x04);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
/* mono -> mono
stereo -> stereo
bilingual -> lang1/lang2 */
cx25840_and_or(client, 0x809, ~0xf, 0x07);
break;
case V4L2_TUNER_MODE_LANG2:
/* mono -> mono
stereo ->stereo
stereo -> stereo
bilingual -> lang2 */
cx25840_and_or(client, 0x809, ~0xf, 0x01);
break;
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3 changes: 3 additions & 0 deletions drivers/media/video/cx88/cx88-tvaudio.c
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Expand Up @@ -885,6 +885,7 @@ void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
break;
}
Expand All @@ -905,6 +906,7 @@ void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
EN_NICAM_FORCE_MONO2);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
set_audio_standard_NICAM(core,
EN_NICAM_FORCE_STEREO);
break;
Expand All @@ -926,6 +928,7 @@ void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
EN_A2_FORCE_MONO2);
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
set_audio_standard_A2(core,
EN_A2_FORCE_STEREO);
break;
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8 changes: 6 additions & 2 deletions drivers/media/video/msp3400-kthreads.c
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Original file line number Diff line number Diff line change
Expand Up @@ -223,9 +223,9 @@ void msp3400c_set_mode(struct i2c_client *client, int mode)
nor do they support stereo BTSC. */
static void msp3400c_set_audmode(struct i2c_client *client)
{
static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" };
struct msp_state *state = i2c_get_clientdata(client);
char *modestr = (state->audmode >= 0 && state->audmode < 4) ?
char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
strmode[state->audmode] : "unknown";
int src = 0; /* channel source: FM/AM, nicam or SCART */

Expand All @@ -250,6 +250,7 @@ static void msp3400c_set_audmode(struct i2c_client *client)
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
case V4L2_TUNER_MODE_LANG2:
case V4L2_TUNER_MODE_LANG1_LANG2:
msp_write_dsp(client, 0x000e, 0x3000);
break;
}
Expand All @@ -261,6 +262,7 @@ static void msp3400c_set_audmode(struct i2c_client *client)
msp3400c_set_carrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
msp3400c_set_carrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG1:
Expand Down Expand Up @@ -296,6 +298,7 @@ static void msp3400c_set_audmode(struct i2c_client *client)
/* switch audio */
switch (state->audmode) {
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
src |= 0x0020;
break;
case V4L2_TUNER_MODE_MONO:
Expand Down Expand Up @@ -835,6 +838,7 @@ static void msp34xxg_set_source(struct i2c_client *client, u16 reg, int in)
matrix = 0x10;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
default:
source = 1; /* stereo or A|B */
matrix = 0x20;
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6 changes: 6 additions & 0 deletions drivers/media/video/mxb.c
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Expand Up @@ -790,6 +790,12 @@ static int mxb_ioctl(struct saa7146_fh *fh, unsigned int cmd, void *arg)
DEB_D(("VIDIOC_S_TUNER: V4L2_TUNER_MODE_STEREO\n"));
break;
}
case V4L2_TUNER_MODE_LANG1_LANG2: {
mxb->cur_mode = V4L2_TUNER_MODE_LANG1_LANG2;
byte = TDA9840_SET_BOTH;
DEB_D(("VIDIOC_S_TUNER: V4L2_TUNER_MODE_LANG1_LANG2\n"));
break;
}
case V4L2_TUNER_MODE_LANG1: {
mxb->cur_mode = V4L2_TUNER_MODE_LANG1;
byte = TDA9840_SET_LANG1;
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2 changes: 2 additions & 0 deletions drivers/media/video/saa7134/saa7134-tvaudio.c
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Expand Up @@ -482,12 +482,14 @@ static int tvaudio_setstereo(struct saa7134_dev *dev, struct saa7134_tvaudio *au
[ V4L2_TUNER_MODE_STEREO ] = "stereo",
[ V4L2_TUNER_MODE_LANG1 ] = "lang1",
[ V4L2_TUNER_MODE_LANG2 ] = "lang2",
[ V4L2_TUNER_MODE_LANG1_LANG2 ] = "lang1+lang2",
};
static u32 fm[] = {
[ V4L2_TUNER_MODE_MONO ] = 0x00, /* ch1 */
[ V4L2_TUNER_MODE_STEREO ] = 0x80, /* auto */
[ V4L2_TUNER_MODE_LANG1 ] = 0x00, /* ch1 */
[ V4L2_TUNER_MODE_LANG2 ] = 0x01, /* ch2 */
[ V4L2_TUNER_MODE_LANG1_LANG2 ] = 0x80, /* auto */
};
u32 reg;

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1 change: 1 addition & 0 deletions drivers/media/video/tvaudio.c
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Expand Up @@ -1733,6 +1733,7 @@ static int chip_command(struct i2c_client *client,
mode = VIDEO_SOUND_MONO;
break;
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
mode = VIDEO_SOUND_STEREO;
break;
case V4L2_TUNER_MODE_LANG1:
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1 change: 1 addition & 0 deletions include/linux/videodev2.h
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Expand Up @@ -883,6 +883,7 @@ struct v4l2_modulator
#define V4L2_TUNER_MODE_LANG2 0x0002
#define V4L2_TUNER_MODE_SAP 0x0002
#define V4L2_TUNER_MODE_LANG1 0x0003
#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004

struct v4l2_frequency
{
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