V4L/DVB (3693): Fix msp3400c and bttv stereo/mono/bilingual detection/handling
- msp3400c did not detect the second carrier, thus being always mono.
- properly mute the msp3400c while detecting the carrier.
- fix checks on the presence of scart2/3 inputs and scart 2 output.
- implement proper audio mode fallbacks for msp3400c/d, identical to the
way msp3400g works.
- MODE_STEREO no longer produces dual languages when set for a bilingual
transmission, instead it falls back to LANG1. Use LANG1_LANG2 to hear
both languages of a bilingual transmission. This is much more intuitive
for the user and is in accordance with the preferred usage in the v4l2
specification.
- bttv tried to implement v4l2 calls with v4l1 calls to the i2c devices,
completely mangling the audmode/rxsubchans handling. v4l2 calls now do
v4l2 calls to the i2c devices.
- fixed broken i2c_vidiocschan in bttv.
- add start/end lines to LOG_STATUS.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c
index 1a4564a..926095c 100644
--- a/drivers/media/video/msp3400-kthreads.c
+++ b/drivers/media/video/msp3400-kthreads.c
@@ -170,7 +170,7 @@
msp_write_dsp(client, 0x000a, src);
msp_write_dsp(client, 0x000b, src);
msp_write_dsp(client, 0x000c, src);
- if (state->has_scart23_in_scart2_out)
+ if (state->has_scart2_out)
msp_write_dsp(client, 0x0041, src);
}
@@ -240,15 +240,22 @@
return;
}
- /* If no second language is available, switch to the first language */
- if ((audmode == V4L2_TUNER_MODE_LANG2 ||
- audmode == V4L2_TUNER_MODE_LANG1_LANG2) &&
- !(state->rxsubchans & V4L2_TUNER_SUB_LANG2))
- audmode = V4L2_TUNER_MODE_LANG1;
- /* switch to stereo for stereo transmission, otherwise
- keep first language */
- if (audmode == V4L2_TUNER_MODE_LANG1 &&
- (state->rxsubchans & V4L2_TUNER_SUB_STEREO))
+ /* Note: for the C and D revs no NTSC stereo + SAP is possible as
+ the hardware does not support SAP. So the rxsubchans combination
+ of STEREO | LANG2 does not occur. */
+
+ /* switch to mono if only mono is available */
+ if (state->rxsubchans == V4L2_TUNER_SUB_MONO)
+ audmode = V4L2_TUNER_MODE_MONO;
+ /* if bilingual */
+ else if (state->rxsubchans & V4L2_TUNER_SUB_LANG2) {
+ /* and mono or stereo, then fallback to lang1 */
+ if (audmode == V4L2_TUNER_MODE_MONO ||
+ audmode == V4L2_TUNER_MODE_STEREO)
+ audmode = V4L2_TUNER_MODE_LANG1;
+ }
+ /* if stereo, and audmode is not mono, then switch to stereo */
+ else if (audmode != V4L2_TUNER_MODE_MONO)
audmode = V4L2_TUNER_MODE_STEREO;
/* switch demodulator */
@@ -308,6 +315,7 @@
}
/* switch audio */
+ v4l_dbg(1, msp_debug, client, "set audmode %d\n", audmode);
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
@@ -476,8 +484,9 @@
continue;
}
- /* mute */
- msp_set_mute(client);
+ /* put into sane state (and mute) */
+ msp_reset(client);
+
msp3400c_set_mode(client, MSP_MODE_AM_DETECT);
val1 = val2 = 0;
max1 = max2 = -1;
@@ -560,7 +569,6 @@
/* B/G NICAM */
state->second = msp3400c_carrier_detect_55[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
- msp3400c_set_carrier(client, state->second, state->main);
state->nicam_on = 1;
state->watch_stereo = 1;
} else {
@@ -571,7 +579,6 @@
/* PAL I NICAM */
state->second = MSP_CARRIER(6.552);
msp3400c_set_mode(client, MSP_MODE_FM_NICAM2);
- msp3400c_set_carrier(client, state->second, state->main);
state->nicam_on = 1;
state->watch_stereo = 1;
break;
@@ -585,13 +592,11 @@
/* L NICAM or AM-mono */
state->second = msp3400c_carrier_detect_65[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_AM_NICAM);
- msp3400c_set_carrier(client, state->second, state->main);
state->watch_stereo = 1;
} else if (max2 == 0 && state->has_nicam) {
/* D/K NICAM */
state->second = msp3400c_carrier_detect_65[max2].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_NICAM1);
- msp3400c_set_carrier(client, state->second, state->main);
state->nicam_on = 1;
state->watch_stereo = 1;
} else {
@@ -603,13 +608,15 @@
no_second:
state->second = msp3400c_carrier_detect_main[max1].cdo;
msp3400c_set_mode(client, MSP_MODE_FM_TERRA);
- msp3400c_set_carrier(client, state->second, state->main);
state->rxsubchans = V4L2_TUNER_SUB_MONO;
break;
}
+ msp3400c_set_carrier(client, state->second, state->main);
- /* unmute */
+ /* unmute, restore misc registers */
msp_set_audio(client);
+
+ msp_write_dsp(client, 0x13, state->acb);
msp3400c_set_audmode(client);
if (msp_debug)
@@ -617,12 +624,12 @@
/* monitor tv audio mode, the first time don't wait
so long to get a quick stereo/bilingual result */
- if (msp_sleep(state, 1000))
- goto restart;
+ count = 20;
while (state->watch_stereo) {
watch_stereo(client);
- if (msp_sleep(state, 5000))
+ if (msp_sleep(state, count ? 200 : 5000))
goto restart;
+ if (count) count--;
}
}
v4l_dbg(1, msp_debug, client, "thread: exit\n");
@@ -634,7 +641,7 @@
{
struct i2c_client *client = data;
struct msp_state *state = i2c_get_clientdata(client);
- int val, i, std;
+ int val, i, std, count;
v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
@@ -775,12 +782,12 @@
/* monitor tv audio mode, the first time don't wait
so long to get a quick stereo/bilingual result */
- if (msp_sleep(state, 1000))
- goto restart;
+ count = 20;
while (state->watch_stereo) {
watch_stereo(client);
- if (msp_sleep(state, 5000))
+ if (msp_sleep(state, count ? 200 : 5000))
goto restart;
+ if (count) count--;
}
}
v4l_dbg(1, msp_debug, client, "thread: exit\n");
@@ -837,20 +844,20 @@
source = 0; /* mono only */
matrix = 0x30;
break;
- case V4L2_TUNER_MODE_LANG1:
- source = 3; /* stereo or A */
- matrix = 0x00;
- break;
case V4L2_TUNER_MODE_LANG2:
source = 4; /* stereo or B */
matrix = 0x10;
break;
- case V4L2_TUNER_MODE_STEREO:
case V4L2_TUNER_MODE_LANG1_LANG2:
- default:
source = 1; /* stereo or A|B */
matrix = 0x20;
break;
+ case V4L2_TUNER_MODE_STEREO:
+ case V4L2_TUNER_MODE_LANG1:
+ default:
+ source = 3; /* stereo or A */
+ matrix = 0x00;
+ break;
}
if (in == MSP_DSP_OUT_TUNER)
@@ -877,7 +884,7 @@
msp34xxg_set_source(client, 0x000c, (in >> 4) & 0xf);
msp34xxg_set_source(client, 0x0009, (in >> 8) & 0xf);
msp34xxg_set_source(client, 0x000a, (in >> 12) & 0xf);
- if (state->has_scart23_in_scart2_out)
+ if (state->has_scart2_out)
msp34xxg_set_source(client, 0x0041, (in >> 16) & 0xf);
msp34xxg_set_source(client, 0x000b, (in >> 20) & 0xf);
}