Chris Leung wrote:
Michael Pearce <chuzwuzza@xxxxxxxxxxxxxxx> writes:
Still no stereo radio though. This is really depressing :) Is there
*anybody* at all out there working on this problem? I'll even donate a
bit of money to the project
The problem isn't money. The problem is time. If you have some of
these days with 48 hours for me ... :)
Gerd
I've tried to slove the problem by looking in the source code of the
driver and the datasheets. Of course, no luck to get the stereo radio
work.
I would like Gred to give me some hint then I can have some try... if you
haven't enough of time...
I still don't understand where is the problem when everything seem follow
the datasheet!
No, the current msp3400.c does not even try to decode stereo fm radio,
essentially is sets both channels to 10.7 MHZ, whereas the 2nd should be at 10.738.
So I still fail to understand why this patch was reported by the tester as No-Fix:
--- bttv-0.7.104/driver/msp3400.c-orig Thu Feb 13 23:15:45 2003
+++ bttv-0.7.104/driver/msp3400.c Thu Feb 13 23:21:43 2003
@@ -274,8 +274,8 @@
/* FM Radio */
{ { -8, -8, 4, 6, 78, 107 }, { -8, -8, 4, 6, 78, 107 },
- MSP_CARRIER(10.7), MSP_CARRIER(10.7),
- 0x00d0, 0x0480, 0x0020, 0x3000 },
+ MSP_CARRIER(10.7), MSP_CARRIER(10.738),
+ 0x00d0, 0x0480, 0x0020, 0x3002 },
/* Terrestial FM-mono + FM-stereo */
{ { 3, 18, 27, 48, 66, 72 }, { 3, 18, 27, 48, 66, 72 },
@@ -1201,7 +1201,7 @@
short programming enables carrier mute */
msp3400c_setmode(client,MSP_MODE_FM_RADIO);
msp3400c_setcarrier(client, MSP_CARRIER(10.7),
- MSP_CARRIER(10.7));
+ MSP_CARRIER(10.738));
/* scart routing */
msp3400c_set_scart(client,SCART_IN2,0);
#if 0
@@ -1492,7 +1492,7 @@
} else {
/* set msp3400 to FM radio mode */
msp3400c_setmode(client,MSP_MODE_FM_RADIO);
- msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.7));
+ msp3400c_setcarrier(client, MSP_CARRIER(10.7),MSP_CARRIER(10.738));
msp3400c_setvolume(client,msp->muted,msp->left,msp->right);
}
if (msp->active)
Anyway you could implement FM radio as recommended in
"MSP 34xyG, MSP 44xyG Recommendations for FM Radio Application with TV Tuner",
("mspg_fm_radio_application_2an.pdf"). This uses ASS mode (automatic sound select)
which is available with newer msp chips.
