Hi,
Here's a small diff against tuner.c (kernel 2.6.0) to get radio
working on recent Pinnacle PCTV Pro cards that have a MT2050 tuner.
In addition to Gerd's recent mini patch to tuner.c to get video
working for these cards (an additional check company_code!=0x3cbf),
apply this one and you're in business for radio too.
Merry Xmas everybody.
BJ
*** /usr/src/linux/drivers/media/video/tuner.c.orig Tue Dec 23 15:29:49 2003
--- /usr/src/linux/drivers/media/video/tuner.c Wed Dec 24 17:40:28 2003
***************
*** 523,530 ****
--- 523,588 ----
if (ret!=2)
printk("mt2032_set_if_freq2 failed with %d\n",ret);
}
+ static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2)
+ {
+ unsigned int if1=1218*1000*1000;
+ unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
+ int ret;
+ unsigned char buf[6];
+
+ dprintk("mt2050_set_if_freq freq=%d\n",freq);
+
+ f_lo1=freq+if1;
+ f_lo1=(f_lo1/1000000)*1000000;
+
+ f_lo2=f_lo1-freq-if2;
+ f_lo2=(f_lo2/50000)*50000;
+
+ lo1=f_lo1/4000000;
+ lo2=f_lo2/4000000;
+
+ f_lo1_modulo= f_lo1-(lo1*4000000);
+ f_lo2_modulo= f_lo2-(lo2*4000000);
+
+ num1=4*f_lo1_modulo/4000000;
+ num2=4096*(f_lo2_modulo/1000)/4000;
+
+ // todo spurchecks
+
+ div1a=(lo1/12)-1;
+ div1b=lo1-(div1a+1)*12;
+
+ div2a=(lo2/8)-1;
+ div2b=lo2-(div2a+1)*8;
+
+ dprintk("lo1 lo2 = %d %d\n", lo1, lo2);
+ dprintk("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",num1,num2,div1a,div1b,div2a,div2b);
+
+
+ buf[0]=1;
+ buf[1]= 4*div1b + num1;
+ if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
+
+ buf[2]=div1a;
+ buf[3]=32*div2b + num2/256;
+ buf[4]=num2-(num2/256)*256;
+ buf[5]=div2a;
+ if(num2!=0) buf[5]=buf[5]|0x40;
+
+ if(debug) {
+ int i;
+ printk("bufs is: ");
+ for(i=0;i<6;i++)
+ printk("%x ",buf[i]);
+ printk("\n");
+ }
+
+ ret=i2c_master_send(c,buf,6);
+ if (ret!=6)
+ printk("mt2050_set_if_freq failed with %d\n",ret);
+ }
static void mt2032_set_tv_freq(struct i2c_client *c, unsigned int freq)
{
struct tuner *t = i2c_get_clientdata(c);
***************
*** 555,562 ****
--- 613,630 ----
mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
1085*1000*1000,if2,if2,if2);
}
+ static void mt2050_set_radio_freq(struct i2c_client *c, unsigned int freq)
+ {
+ struct tuner *t = i2c_get_clientdata(c);
+ int if2 = t->radio_if2;
+
+ dprintk( "mt2050_set_radio_freq\n" );
+
+ mt2050_set_if_freq(c, freq*62500, if2);
+ }
+
// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
static int mt2032_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
***************
*** 612,677 ****
t->radio_freq = mt2032_set_radio_freq;
return(1);
}
- static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2)
- {
- unsigned int if1=1218*1000*1000;
- unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
- int ret;
- unsigned char buf[6];
-
- dprintk("mt2050_set_if_freq freq=%d\n",freq);
-
- f_lo1=freq+if1;
- f_lo1=(f_lo1/1000000)*1000000;
-
- f_lo2=f_lo1-freq-if2;
- f_lo2=(f_lo2/50000)*50000;
-
- lo1=f_lo1/4000000;
- lo2=f_lo2/4000000;
-
- f_lo1_modulo= f_lo1-(lo1*4000000);
- f_lo2_modulo= f_lo2-(lo2*4000000);
-
- num1=4*f_lo1_modulo/4000000;
- num2=4096*(f_lo2_modulo/1000)/4000;
-
- // todo spurchecks
-
- div1a=(lo1/12)-1;
- div1b=lo1-(div1a+1)*12;
-
- div2a=(lo2/8)-1;
- div2b=lo2-(div2a+1)*8;
-
- dprintk("lo1 lo2 = %d %d\n", lo1, lo2);
- dprintk("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",num1,num2,div1a,div1b,div2a,div2b);
-
-
- buf[0]=1;
- buf[1]= 4*div1b + num1;
- if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
-
- buf[2]=div1a;
- buf[3]=32*div2b + num2/256;
- buf[4]=num2-(num2/256)*256;
- buf[5]=div2a;
- if(num2!=0) buf[5]=buf[5]|0x40;
-
- if(debug) {
- int i;
- printk("bufs is: ");
- for(i=0;i<6;i++)
- printk("%x ",buf[i]);
- printk("\n");
- }
-
- ret=i2c_master_send(c,buf,6);
- if (ret!=6)
- printk("mt2050_set_if_freq failed with %d\n",ret);
- }
static void mt2050_set_tv_freq(struct i2c_client *c, unsigned int freq)
{
struct tuner *t = i2c_get_clientdata(c);
--- 680,687 ----
***************
*** 705,712 ****
--- 715,723 ----
i2c_master_recv(c,buf,1);
dprintk("mt2050: sro is %x\n",buf[0]);
t->tv_freq = mt2050_set_tv_freq;
+ t->radio_freq = mt2050_set_radio_freq;
return 0;
}
static int microtune_init(struct i2c_client *c)
