well the 0x957fff does fix the problem. now i can tune to some of the
channels but most of the channels wont tune. i'm including a patch for the
spur avoidance and also i've rearranged the compute freq routine a bit.
i'll debug some more tomorrow and see why it wont tune to some channels.
--On Wednesday, October 10, 2001 8:57 PM +0200 Gunther Mayer
<[EMAIL PROTECTED]> wrote:
> Ivan T Tarnavsky wrote:
>>
>> hi,
>> i've got the voodootv 200 pci us version and cant make it work with
>> bttv. i have kernel 2.4.10 + bttv 0.7.80 + the latest Gunter's patch
>> with the "proper" initialization. it's still not working. i get noise
>> for the audio
>
> Try this patch (on bttv-0.7.81) and report.
>
> --- bttv-cards.c-PAL Tue Oct 9 21:09:50 2001
> +++ bttv-cards.c Tue Oct 9 21:10:21 2001
> @@ -1049,7 +1049,7 @@
> gpiomask: 0x4f8a00,
> // 0x100000: 1=MSP enabled (0=disable again)
> // 0x010000: somehow influences tuner picture
> quality (? )
> - audiomux: {0x947fff, 0x987fff,0x947fff,0x947fff},
> + audiomux: {0x957fff, 0x987fff,0x947fff,0x947fff},
> //tvtuner, radio, external,internal,mute,stereo
> muxsel: { 2, 3 ,0 ,1}, /* tuner, Composit, SVid,
> Composit-on-Sv id-adapter*/
> tuner_type: TUNER_MT2032,
>
>
> I already got a positive report on this:
>> It looks as if all the channels work. And the sound is perfect!
>> This is so awsome!
>> P.S.) KWinTV's autoscanning feature doesn't work with this card since it
>> takes a second or two to tune-in the channel.
>
> This would confirm GPIO connected to tda9880 for selecting tv standard
> (thanks torgeir for the hint).
>
cheers,
ivan.
*** tuner.c.old Wed Oct 10 15:16:22 2001
--- tuner.c Wed Oct 10 15:46:16 2001
***************
*** 281,287 ****
ret=i2c_master_send(c,buf,1);
i2c_master_recv(c,buf,21);
! printk("MT2032: Companycode=%02x%02x Part=%02x Revision=%02x\n",
buf[0x11],buf[0x12],buf[0x13],buf[0x14]);
if(debug) {
--- 281,287 ----
ret=i2c_master_send(c,buf,1);
i2c_master_recv(c,buf,21);
! printk("MT2032: Companycode=%c%c Part=%02x Revision=%02x\n",
buf[0x11],buf[0x12],buf[0x13],buf[0x14]);
if(debug) {
***************
*** 290,296 ****
for(i=0;i<21;i++) {
printk(" %02x",buf[i]);
if(((i+1)%8)==0) printk(" ");
! if(((i+1)%16)==0) printk("\n ");
}
printk("\n ");
}
--- 290,296 ----
for(i=0;i<21;i++) {
printk(" %02x",buf[i]);
if(((i+1)%8)==0) printk(" ");
! if(((i+1)%16)==0) printk("\n");
}
printk("\n ");
}
***************
*** 364,392 ****
f=f-f2;
dprintk(" spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
! if( (f>spectrum_from) && (f<spectrum_to))
printk("mt2032 spurcheck triggered: %d\n",n1);
} while ( (f>(f2-spectrum_to)) || (n2>-5));
n1++;
} while (n1<5);
! return 1;
}
int mt2032_compute_freq(int rfin, int if1, int if2, int spectrum_from,
int spectrum_to, unsigned char *buf, int *ret_sel, int xogc) //all in Hz
{
int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
! desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
fref= 5250 *1000; //5.25MHz
- desired_lo1=rfin+if1;
! lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000);
! lo1n=lo1/8;
! lo1a=lo1-(lo1n*8);
! s=rfin/1000/1000+1090;
if(optimize_vco) {
if(s>1890) sel=0;
--- 364,408 ----
f=f-f2;
dprintk(" spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
! if( (f>spectrum_from) && (f<spectrum_to)) {
printk("mt2032 spurcheck triggered: %d\n",n1);
+ return 1;
+ }
} while ( (f>(f2-spectrum_to)) || (n2>-5));
n1++;
} while (n1<5);
! return 0;
}
int mt2032_compute_freq(int rfin, int if1, int if2, int spectrum_from,
int spectrum_to, unsigned char *buf, int *ret_sel, int xogc) //all in Hz
{
int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
! desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq,nLO1adjust;
fref= 5250 *1000; //5.25MHz
! // 2.3.1
! desired_lo1 = rfin + if1;
! lo1 = (2 * (desired_lo1 / 1000) + (fref / 1000)) / (2 * fref / 1000);
! lo1freq = lo1 * fref;
! desired_lo2 = lo1freq - rfin - if2;
!
! // 2.3.2
! for(nLO1adjust = 1; nLO1adjust < 3; nLO1adjust++) {
! if (!mt2032_spurcheck(lo1freq, desired_lo2, spectrum_from,
spectrum_to))
! break;
! if (lo1freq < desired_lo1)
! lo1 += nLO1adjust;
! else
! lo1 -= nLO1adjust;
! lo1freq = lo1 * fref;
! desired_lo2 = lo1freq - rfin - if2;
! }
! // 2.3.3
! s = lo1freq/1000/1000;
if(optimize_vco) {
if(s>1890) sel=0;
***************
*** 404,418 ****
}
*ret_sel=sel;
! lo1freq=(lo1a+8*lo1n)*fref;
dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
rfin,lo1,lo1n,lo1a,sel,lo1freq);
! desired_lo2=lo1freq-rfin-if2;
! lo2=(desired_lo2)/fref;
! lo2n=lo2/8;
! lo2a=lo2-(lo2n*8);
lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in
32bit arith
lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
--- 420,435 ----
}
*ret_sel=sel;
! // 2.3.4
! lo1n=lo1/8;
! lo1a=lo1-(lo1n*8);
dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
rfin,lo1,lo1n,lo1a,sel,lo1freq);
! lo2 = desired_lo2 / fref;
! lo2n = lo2 / 8;
! lo2a = lo2 - (lo2n * 8);
lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in
32bit arith
lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
***************
*** 424,432 ****
lo1a, lo1n, lo2a,lo2n);
return(-1);
}
-
- mt2032_spurcheck(lo1freq, desired_lo2, spectrum_from, spectrum_to);
- // should recalculate lo1 (one step up/down)
// set up MT2032 register map for transfer over i2c
buf[0]=lo1n-1;
--- 441,446 ----
