/* Set audio mode. Note that the pre-'G' models do not support BTSC+SAP,
nor do they support stereo BTSC. */
static void msp3400c_set_audmode(struct i2c_client *client)
{
static char *strmode[] = { "mono", "stereo", "lang2", "lang1", "lang1+lang2" };
struct msp_state *state = i2c_get_clientdata(client);
char *modestr = (state->audmode >= 0 && state->audmode < 5) ?
strmode[state->audmode] : "unknown";
int src = 0; /* channel source: FM/AM, nicam or SCART */
int audmode = state->audmode;
if (state->opmode == OPMODE_AUTOSELECT) {
/* this method would break everything, let's make sure
* it's never called
*/
v4l_dbg(1, msp_debug, client,
"set_audmode called with mode=%d instead of set_source (ignored)\n",
state->audmode);
return;
}
/* 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. */
if (state->mode != MSP_MODE_EXTERN) {
/* 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 */
switch (state->mode) {
case MSP_MODE_FM_TERRA:
v4l_dbg(1, msp_debug, client, "FM set_audmode: %s\n", modestr);
switch (audmode) {
case V4L2_TUNER_MODE_STEREO:
msp_write_dsp(client, 0x000e, 0x3001);
break;
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;
}
break;
case MSP_MODE_FM_SAT:
v4l_dbg(1, msp_debug, client, "SAT set_audmode: %s\n", modestr);
switch (audmode) {
case V4L2_TUNER_MODE_MONO:
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:
msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG2:
msp3400c_set_carrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
}
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
v4l_dbg(1, msp_debug, client, "NICAM set_audmode: %s\n",modestr);
if (state->nicam_on)
src = 0x0100; /* NICAM */
break;
case MSP_MODE_BTSC:
v4l_dbg(1, msp_debug, client, "BTSC set_audmode: %s\n",modestr);
break;
case MSP_MODE_EXTERN:
v4l_dbg(1, msp_debug, client, "extern set_audmode: %s\n",modestr);
src = 0x0200; /* SCART */
break;
case MSP_MODE_FM_RADIO:
v4l_dbg(1, msp_debug, client, "FM-Radio set_audmode: %s\n",modestr);
break;
default:
v4l_dbg(1, msp_debug, client, "mono set_audmode\n");
return;
}
/* 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:
src |= 0x0020;
break;
case V4L2_TUNER_MODE_MONO:
if (state->mode == MSP_MODE_AM_NICAM) {
v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
/* AM mono decoding is handled by tuner, not MSP chip */
/* SCART switching control register */
msp_set_scart(client, SCART_MONO, 0);
src = 0x0200;
break;
}
if (state->rxsubchans & V4L2_TUNER_SUB_STEREO)
src = 0x0030;
break;
case V4L2_TUNER_MODE_LANG1:
break;
case V4L2_TUNER_MODE_LANG2:
src |= 0x0010;
break;
}
v4l_dbg(1, msp_debug, client, "set_audmode final source/matrix = 0x%x\n", src);
msp_set_source(client, src);
}
/* turn on/off nicam + stereo */
void msp3400c_setstereo(struct i2c_client *client, int mode)
{
static char *strmode[] = { "mono", "stereo", "lang2", "lang1" };
struct msp_state *state = i2c_get_clientdata(client);
int nicam = 0; /* channel source: FM/AM or nicam */
int src = 0;
if (state->opmode == OPMODE_AUTOSELECT) {
/* this method would break everything, let's make sure
* it's never called
*/
v4l_dbg(1, msp_debug, client, "setstereo called with mode=%d instead of set_source (ignored)\n",
mode);
return;
}
/* switch demodulator */
switch (state->mode) {
case MSP_MODE_FM_TERRA:
v4l_dbg(1, msp_debug, client, "FM setstereo: %s\n", strmode[mode]);
msp3400c_setcarrier(client, state->second, state->main);
switch (mode) {
case V4L2_TUNER_MODE_STEREO:
msp_write_dsp(client, 0x000e, 0x3001);
break;
case V4L2_TUNER_MODE_MONO:
case V4L2_TUNER_MODE_LANG1:
case V4L2_TUNER_MODE_LANG2:
msp_write_dsp(client, 0x000e, 0x3000);
break;
}
break;
case MSP_MODE_FM_SAT:
v4l_dbg(1, msp_debug, client, "SAT setstereo: %s\n", strmode[mode]);
switch (mode) {
case V4L2_TUNER_MODE_MONO:
msp3400c_setcarrier(client, MSP_CARRIER(6.5), MSP_CARRIER(6.5));
break;
case V4L2_TUNER_MODE_STEREO:
msp3400c_setcarrier(client, MSP_CARRIER(7.2), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG1:
msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
case V4L2_TUNER_MODE_LANG2:
msp3400c_setcarrier(client, MSP_CARRIER(7.38), MSP_CARRIER(7.02));
break;
}
break;
case MSP_MODE_FM_NICAM1:
case MSP_MODE_FM_NICAM2:
case MSP_MODE_AM_NICAM:
v4l_dbg(1, msp_debug, client, "NICAM setstereo: %s\n",strmode[mode]);
msp3400c_setcarrier(client,state->second,state->main);
if (state->nicam_on)
nicam=0x0100;
break;
case MSP_MODE_BTSC:
v4l_dbg(1, msp_debug, client, "BTSC setstereo: %s\n",strmode[mode]);
nicam=0x0300;
break;
case MSP_MODE_EXTERN:
v4l_dbg(1, msp_debug, client, "extern setstereo: %s\n",strmode[mode]);
nicam = 0x0200;
break;
case MSP_MODE_FM_RADIO:
v4l_dbg(1, msp_debug, client, "FM-Radio setstereo: %s\n",strmode[mode]);
break;
default:
v4l_dbg(1, msp_debug, client, "mono setstereo\n");
return;
}
/* switch audio */
switch (mode) {
case V4L2_TUNER_MODE_STEREO:
src = 0x0020 | nicam;
break;
case V4L2_TUNER_MODE_MONO:
if (state->mode == MSP_MODE_AM_NICAM) {
v4l_dbg(1, msp_debug, client, "switching to AM mono\n");
/* AM mono decoding is handled by tuner, not MSP chip */
/* SCART switching control register */
msp_set_scart(client, SCART_MONO, 0);
src = 0x0200;
break;
}
case V4L2_TUNER_MODE_LANG1:
src = 0x0000 | nicam;
break;
case V4L2_TUNER_MODE_LANG2:
src = 0x0010 | nicam;
break;
}
v4l_dbg(1, msp_debug, client, "setstereo final source/matrix = 0x%x\n", src);
if (msp_dolby) {
msp_write_dsp(client, 0x0008, 0x0520);
msp_write_dsp(client, 0x0009, 0x0620);
msp_write_dsp(client, 0x000a, src);
msp_write_dsp(client, 0x000b, src);
} else {
msp_write_dsp(client, 0x0008, src);
msp_write_dsp(client, 0x0009, src);
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)
msp_write_dsp(client, 0x0041, src);
}
}
