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path: root/drivers/media/video/mt20xx.c
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Diffstat (limited to 'drivers/media/video/mt20xx.c')
-rw-r--r--drivers/media/video/mt20xx.c206
1 files changed, 103 insertions, 103 deletions
diff --git a/drivers/media/video/mt20xx.c b/drivers/media/video/mt20xx.c
index 972aa5e0aeef..2180018f06de 100644
--- a/drivers/media/video/mt20xx.c
+++ b/drivers/media/video/mt20xx.c
@@ -76,17 +76,17 @@ static int mt2032_compute_freq(struct i2c_client *c,
unsigned int xogc) //all in Hz
{
struct tuner *t = i2c_get_clientdata(c);
- unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
+ unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
- fref= 5250 *1000; //5.25MHz
+ 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);
+ lo1n=lo1/8;
+ lo1a=lo1-(lo1n*8);
- s=rfin/1000/1000+1090;
+ s=rfin/1000/1000+1090;
if(optimize_vco) {
if(s>1890) sel=0;
@@ -96,34 +96,34 @@ static int mt2032_compute_freq(struct i2c_client *c,
else sel=4; // >1090
}
else {
- if(s>1790) sel=0; // <1958
- else if(s>1617) sel=1;
- else if(s>1449) sel=2;
- else if(s>1291) sel=3;
- else sel=4; // >1090
+ if(s>1790) sel=0; // <1958
+ else if(s>1617) sel=1;
+ else if(s>1449) sel=2;
+ else if(s>1291) sel=3;
+ else sel=4; // >1090
}
*ret_sel=sel;
- lo1freq=(lo1a+8*lo1n)*fref;
+ lo1freq=(lo1a+8*lo1n)*fref;
tuner_dbg("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;
+ 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;
tuner_dbg("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n",
rfin,lo2,lo2n,lo2a,lo2num,lo2freq);
- if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
+ if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
tuner_info("mt2032: frequency parameters out of range: %d %d %d %d\n",
lo1a, lo1n, lo2a,lo2n);
- return(-1);
- }
+ return(-1);
+ }
mt2032_spurcheck(c, lo1freq, desired_lo2, spectrum_from, spectrum_to);
// should recalculate lo1 (one step up/down)
@@ -135,10 +135,10 @@ static int mt2032_compute_freq(struct i2c_client *c,
buf[3]=0x0f; //reserved
buf[4]=0x1f;
buf[5]=(lo2n-1) | (lo2a<<5);
- if(rfin >400*1000*1000)
- buf[6]=0xe4;
- else
- buf[6]=0xf4; // set PKEN per rev 1.2
+ if(rfin >400*1000*1000)
+ buf[6]=0xe4;
+ else
+ buf[6]=0xf4; // set PKEN per rev 1.2
buf[7]=8+xogc;
buf[8]=0xc3; //reserved
buf[9]=0x4e; //reserved
@@ -168,7 +168,7 @@ static int mt2032_check_lo_lock(struct i2c_client *c)
tuner_dbg("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
udelay(1000);
}
- return lock;
+ return lock;
}
static int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
@@ -202,7 +202,7 @@ static int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
buf[0]=0x0f;
buf[1]=sel;
- i2c_master_send(c,buf,2);
+ i2c_master_send(c,buf,2);
lock=mt2032_check_lo_lock(c);
return lock;
}
@@ -219,23 +219,23 @@ static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin,
tuner_dbg("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",
rfin,if1,if2,from,to);
- buf[0]=0;
- ret=i2c_master_send(c,buf,1);
- i2c_master_recv(c,buf,21);
+ buf[0]=0;
+ ret=i2c_master_send(c,buf,1);
+ i2c_master_recv(c,buf,21);
buf[0]=0;
ret=mt2032_compute_freq(c,rfin,if1,if2,from,to,&buf[1],&sel,t->xogc);
if (ret<0)
return;
- // send only the relevant registers per Rev. 1.2
- buf[0]=0;
- ret=i2c_master_send(c,buf,4);
- buf[5]=5;
- ret=i2c_master_send(c,buf+5,4);
- buf[11]=11;
- ret=i2c_master_send(c,buf+11,3);
- if(ret!=3)
+ // send only the relevant registers per Rev. 1.2
+ buf[0]=0;
+ ret=i2c_master_send(c,buf,4);
+ buf[5]=5;
+ ret=i2c_master_send(c,buf+5,4);
+ buf[11]=11;
+ ret=i2c_master_send(c,buf+11,3);
+ if(ret!=3)
tuner_warn("i2c i/o error: rc == %d (should be 3)\n",ret);
// wait for PLLs to lock (per manual), retry LINT if not.
@@ -253,7 +253,7 @@ static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin,
mdelay(10);
buf[1]=8+t->xogc;
i2c_master_send(c,buf,2);
- }
+ }
if (lock!=6)
tuner_warn("MT2032 Fatal Error: PLLs didn't lock.\n");
@@ -284,7 +284,7 @@ static void mt2032_set_tv_freq(struct i2c_client *c, unsigned int freq)
if2 = 38900*1000;
}
- mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
+ mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
1090*1000*1000, if2, from, to);
}
@@ -294,7 +294,7 @@ static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq)
int if2 = t->radio_if2;
// per Manual for FM tuning: first if center freq. 1085 MHz
- mt2032_set_if_freq(c, freq * 1000 / 16,
+ mt2032_set_if_freq(c, freq * 1000 / 16,
1085*1000*1000,if2,if2,if2);
}
@@ -302,57 +302,57 @@ static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq)
static int mt2032_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
- unsigned char buf[21];
- int ret,xogc,xok=0;
+ unsigned char buf[21];
+ int ret,xogc,xok=0;
// Initialize Registers per spec.
- buf[1]=2; // Index to register 2
- buf[2]=0xff;
- buf[3]=0x0f;
- buf[4]=0x1f;
- ret=i2c_master_send(c,buf+1,4);
-
- buf[5]=6; // Index register 6
- buf[6]=0xe4;
- buf[7]=0x8f;
- buf[8]=0xc3;
- buf[9]=0x4e;
- buf[10]=0xec;
- ret=i2c_master_send(c,buf+5,6);
-
- buf[12]=13; // Index register 13
- buf[13]=0x32;
- ret=i2c_master_send(c,buf+12,2);
-
- // Adjust XOGC (register 7), wait for XOK
- xogc=7;
- do {
+ buf[1]=2; // Index to register 2
+ buf[2]=0xff;
+ buf[3]=0x0f;
+ buf[4]=0x1f;
+ ret=i2c_master_send(c,buf+1,4);
+
+ buf[5]=6; // Index register 6
+ buf[6]=0xe4;
+ buf[7]=0x8f;
+ buf[8]=0xc3;
+ buf[9]=0x4e;
+ buf[10]=0xec;
+ ret=i2c_master_send(c,buf+5,6);
+
+ buf[12]=13; // Index register 13
+ buf[13]=0x32;
+ ret=i2c_master_send(c,buf+12,2);
+
+ // Adjust XOGC (register 7), wait for XOK
+ xogc=7;
+ do {
tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
- mdelay(10);
- buf[0]=0x0e;
- i2c_master_send(c,buf,1);
- i2c_master_recv(c,buf,1);
- xok=buf[0]&0x01;
- tuner_dbg("mt2032: xok = 0x%02x\n",xok);
- if (xok == 1) break;
-
- xogc--;
- tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
- if (xogc == 3) {
- xogc=4; // min. 4 per spec
- break;
- }
- buf[0]=0x07;
- buf[1]=0x88 + xogc;
- ret=i2c_master_send(c,buf,2);
- if (ret!=2)
+ mdelay(10);
+ buf[0]=0x0e;
+ i2c_master_send(c,buf,1);
+ i2c_master_recv(c,buf,1);
+ xok=buf[0]&0x01;
+ tuner_dbg("mt2032: xok = 0x%02x\n",xok);
+ if (xok == 1) break;
+
+ xogc--;
+ tuner_dbg("mt2032: xogc = 0x%02x\n",xogc&0x07);
+ if (xogc == 3) {
+ xogc=4; // min. 4 per spec
+ break;
+ }
+ buf[0]=0x07;
+ buf[1]=0x88 + xogc;
+ ret=i2c_master_send(c,buf,2);
+ if (ret!=2)
tuner_warn("i2c i/o error: rc == %d (should be 2)\n",ret);
- } while (xok != 1 );
+ } while (xok != 1 );
t->xogc=xogc;
t->tv_freq = mt2032_set_tv_freq;
t->radio_freq = mt2032_set_radio_freq;
- return(1);
+ return(1);
}
static void mt2050_set_antenna(struct i2c_client *c, unsigned char antenna)
@@ -426,7 +426,7 @@ static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned
}
ret=i2c_master_send(c,buf,6);
- if (ret!=6)
+ if (ret!=6)
tuner_warn("i2c i/o error: rc == %d (should be 6)\n",ret);
}
@@ -437,11 +437,11 @@ static void mt2050_set_tv_freq(struct i2c_client *c, unsigned int freq)
if (t->std & V4L2_STD_525_60) {
// NTSC
- if2 = 45750*1000;
- } else {
- // PAL
- if2 = 38900*1000;
- }
+ if2 = 45750*1000;
+ } else {
+ // PAL
+ if2 = 38900*1000;
+ }
if (V4L2_TUNER_DIGITAL_TV == t->mode) {
// DVB (pinnacle 300i)
if2 = 36150*1000;
@@ -455,7 +455,7 @@ 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;
- mt2050_set_if_freq(c, freq*62500, if2);
+ mt2050_set_if_freq(c, freq * 1000 / 16, if2);
mt2050_set_antenna(c, radio_antenna);
}
@@ -487,7 +487,7 @@ int microtune_init(struct i2c_client *c)
{
struct tuner *t = i2c_get_clientdata(c);
char *name;
- unsigned char buf[21];
+ unsigned char buf[21];
int company_code;
memset(buf,0,sizeof(buf));
@@ -496,17 +496,17 @@ int microtune_init(struct i2c_client *c)
t->standby = NULL;
name = "unknown";
- i2c_master_send(c,buf,1);
- i2c_master_recv(c,buf,21);
- if (tuner_debug) {
- int i;
+ i2c_master_send(c,buf,1);
+ i2c_master_recv(c,buf,21);
+ if (tuner_debug) {
+ int i;
tuner_dbg("MT20xx hexdump:");
- for(i=0;i<21;i++) {
- printk(" %02x",buf[i]);
- if(((i+1)%8)==0) printk(" ");
- }
- printk("\n");
- }
+ for(i=0;i<21;i++) {
+ printk(" %02x",buf[i]);
+ if(((i+1)%8)==0) printk(" ");
+ }
+ printk("\n");
+ }
company_code = buf[0x11] << 8 | buf[0x12];
tuner_info("microtune: companycode=%04x part=%02x rev=%02x\n",
company_code,buf[0x13],buf[0x14]);
@@ -525,8 +525,8 @@ int microtune_init(struct i2c_client *c)
default:
tuner_info("microtune %s found, not (yet?) supported, sorry :-/\n",
name);
- return 0;
- }
+ return 0;
+ }
strlcpy(c->name, name, sizeof(c->name));
tuner_info("microtune %s found, OK\n",name);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.