patch-2.4.13 linux/drivers/media/video/tuner.c
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- Lines: 523
- Date:
Wed Oct 17 14:19:20 2001
- Orig file:
v2.4.12/linux/drivers/media/video/tuner.c
- Orig date:
Tue Oct 9 17:06:51 2001
diff -u --recursive --new-file v2.4.12/linux/drivers/media/video/tuner.c linux/drivers/media/video/tuner.c
@@ -30,25 +30,29 @@
force
};
-static int debug = 0; /* insmod parameter */
-static int type = -1; /* insmod parameter */
-
+/* insmod options */
+static int debug = 0;
+static int type = -1;
static int addr = 0;
static char *pal = "b";
-static int this_adap;
static int tv_range[2] = { 44, 958 };
static int radio_range[2] = { 65, 108 };
-
-#define dprintk if (debug) printk
-
MODULE_PARM(debug,"i");
MODULE_PARM(type,"i");
MODULE_PARM(addr,"i");
MODULE_PARM(tv_range,"2i");
MODULE_PARM(radio_range,"2i");
MODULE_PARM(pal,"s");
+
+#define optimize_vco 1
+
+MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
+MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
MODULE_LICENSE("GPL");
+static int this_adap;
+#define dprintk if (debug) printk
+
struct tuner
{
int type; /* chip type */
@@ -56,12 +60,15 @@
int std;
int radio;
- int mode; /* PAL(0)/SECAM(1) mode (PHILIPS_SECAM only) */
+ int mode; /* current norm for multi-norm tuners */
+ int xogc; // only for MT2032
};
static struct i2c_driver driver;
static struct i2c_client client_template;
+/* ---------------------------------------------------------------------- */
+
/* tv standard selection for Temic 4046 FM5
this value takes the low bits of control byte 2
from datasheet Rev.01, Feb.00
@@ -154,13 +161,13 @@
16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
{ "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
- { "Temic PAL_I (4006FH5)", TEMIC, PAL_I,
+ { "Temic PAL_BG (4006FH5)", TEMIC, PAL,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "Alps TSCH6",Alps,NTSC,
16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
{ "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
- 16*136.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
+ 16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
{ "Philips NTSC_M (MK2)",Philips,NTSC,
16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
{ "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
@@ -191,7 +198,24 @@
{ "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
- 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623}
+ 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
+ { "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
+ 16*137.25,16*317.25,0x01,0x02,0x08,0x8e,940},
+
+ { "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
+ 16*169,16*464,0xA0,0x90,0x30,0x8e,623},
+ { "MT2032 universal", Microtune,PAL|NTSC,
+ 0,0,0,0,0,0,0},
+ { "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
+ 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
+ { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
+ 16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
+
+ { "Temic NTSC (4136 FY5)", TEMIC, NTSC,
+ 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
+ { "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
+ 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
+
};
#define TUNERS (sizeof(tuners)/sizeof(struct tunertype))
@@ -201,6 +225,11 @@
{
unsigned char byte;
+ struct tuner *t = (struct tuner*)c->data;
+
+ if (t->type == TUNER_MT2032)
+ return 0;
+
if (1 != i2c_master_recv(c,&byte,1))
return 0;
return byte;
@@ -241,6 +270,315 @@
return (tuner_getstatus (c) & TUNER_MODE) >> 3;
}
#endif
+// Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
+int mt2032_init(struct i2c_client *c)
+{
+ unsigned char buf[21];
+ int ret,xogc,xok=0;
+ struct tuner *t = (struct tuner*)c->data;
+
+ buf[0]=0;
+ 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) {
+ int i;
+ printk("MT2032 hexdump:\n");
+ 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 ");
+ }
+
+ // 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 {
+ dprintk("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;
+ dprintk("mt2032: xok = 0x%02x\n",xok);
+ if (xok == 1) break;
+
+ xogc--;
+ dprintk("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)
+ printk("mt2032_init failed with %d\n",ret);
+ } while (xok != 1 );
+ t->xogc=xogc;
+
+ return(1);
+}
+
+
+// IsSpurInBand()?
+int mt2032_spurcheck(int f1, int f2, int spectrum_from,int spectrum_to)
+{
+ int n1=1,n2,f;
+
+ f1=f1/1000; //scale to kHz to avoid 32bit overflows
+ f2=f2/1000;
+ spectrum_from/=1000;
+ spectrum_to/=1000;
+
+ dprintk("spurcheck f1=%d f2=%d from=%d to=%d\n",f1,f2,spectrum_from,spectrum_to);
+
+ do {
+ n2=-n1;
+ f=n1*(f1-f2);
+ do {
+ n2--;
+ 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;
+ else if(s>1720) sel=1;
+ else if(s>1530) sel=2;
+ else if(s>1370) sel=3;
+ 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
+ }
+ *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;
+
+ dprintk("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) {
+ printk("mt2032: frequency parameters out of range: %d %d %d %d\n",
+ 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;
+ buf[1]=lo1a | (sel<<4);
+ buf[2]=0x86; // LOGC
+ 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
+ buf[7]=8+xogc;
+ buf[8]=0xc3; //reserved
+ buf[9]=0x4e; //reserved
+ buf[10]=0xec; //reserved
+ buf[11]=(lo2num&0xff);
+ buf[12]=(lo2num>>8) |0x80; // Lo2RST
+
+ return 0;
+}
+
+int mt2032_check_lo_lock(struct i2c_client *c)
+{
+ int try,lock=0;
+ unsigned char buf[2];
+ for(try=0;try<10;try++) {
+ buf[0]=0x0e;
+ i2c_master_send(c,buf,1);
+ i2c_master_recv(c,buf,1);
+ dprintk("mt2032 Reg.E=0x%02x\n",buf[0]);
+ lock=buf[0] &0x06;
+
+ if (lock==6)
+ break;
+
+ dprintk("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
+ udelay(1000);
+ }
+ return lock;
+}
+
+int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
+{
+ unsigned char buf[2];
+ int tad1;
+
+ buf[0]=0x0f;
+ i2c_master_send(c,buf,1);
+ i2c_master_recv(c,buf,1);
+ dprintk("mt2032 Reg.F=0x%02x\n",buf[0]);
+ tad1=buf[0]&0x07;
+
+ if(tad1 ==0) return lock;
+ if(tad1 ==1) return lock;
+
+ if(tad1==2) {
+ if(sel==0)
+ return lock;
+ else sel--;
+ }
+ else {
+ if(sel<4)
+ sel++;
+ else
+ return lock;
+ }
+
+ dprintk("mt2032 optimize_vco: sel=%d\n",sel);
+
+ buf[0]=0x0f;
+ buf[1]=sel;
+ i2c_master_send(c,buf,2);
+ lock=mt2032_check_lo_lock(c);
+ return lock;
+}
+
+
+void mt2032_set_if_freq(struct i2c_client *c,int rfin, int if1, int if2, int from, int to)
+{
+ unsigned char buf[21];
+ int lint_try,ret,sel,lock=0;
+ struct tuner *t = (struct tuner*)c->data;
+
+ dprintk("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=mt2032_compute_freq(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)
+ printk("mt2032_set_if_freq failed with %d\n",ret);
+
+ // wait for PLLs to lock (per manual), retry LINT if not.
+ for(lint_try=0; lint_try<2; lint_try++) {
+ lock=mt2032_check_lo_lock(c);
+
+ if(optimize_vco)
+ lock=mt2032_optimize_vco(c,sel,lock);
+ if(lock==6) break;
+
+ printk("mt2032: re-init PLLs by LINT\n");
+ buf[0]=7;
+ buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs
+ i2c_master_send(c,buf,2);
+ mdelay(10);
+ buf[1]=8+t->xogc;
+ i2c_master_send(c,buf,2);
+ }
+
+ if (lock!=6)
+ printk("MT2032 Fatal Error: PLLs didn't lock.\n");
+
+ buf[0]=2;
+ buf[1]=0x20; // LOGC for optimal phase noise
+ ret=i2c_master_send(c,buf,2);
+ if (ret!=2)
+ printk("mt2032_set_if_freq2 failed with %d\n",ret);
+}
+
+
+void mt2032_set_tv_freq(struct i2c_client *c, int freq, int norm)
+{
+ int if2,from,to;
+
+ // signal bandwidth and picture carrier
+ if(norm==VIDEO_MODE_NTSC) {
+ from=40750*1000;
+ to=46750*1000;
+ if2=45750*1000;
+ }
+ else { // Pal
+ from=32900*1000;
+ to=39900*1000;
+ if2=38900*1000;
+ }
+
+ mt2032_set_if_freq(c,freq* 1000*1000/16, 1090*1000*1000, if2, from, to);
+}
+
// Set tuner frequency, freq in Units of 62.5kHz = 1/16MHz
static void set_tv_freq(struct i2c_client *c, int freq)
@@ -252,6 +590,15 @@
unsigned char buffer[4];
int rc;
+ if (t->type == -1) {
+ printk("tuner: tuner type not set\n");
+ return;
+ }
+ if (t->type == TUNER_MT2032) {
+ mt2032_set_tv_freq(c,freq,t->mode);
+ return;
+ }
+
if (freq < tv_range[0]*16 || freq > tv_range[1]*16) {
/* FIXME: better do that chip-specific, but
right now we don't have that in the config
@@ -259,10 +606,6 @@
check at all */
printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
- }
-
- if (t->type == -1) {
- printk("tuner: tuner type not set\n");
return;
}
@@ -282,7 +625,7 @@
/* 0x02 -> PAL BDGHI / SECAM L */
/* 0x04 -> ??? PAL others / SECAM others ??? */
config &= ~0x02;
- if (t->mode)
+ if (t->mode == VIDEO_MODE_SECAM)
config |= 0x02;
break;
@@ -366,6 +709,15 @@
}
+static void mt2032_set_radio_freq(struct i2c_client *c,int freq)
+{
+ int if2;
+
+ if2=10700*1000; // 10.7MHz FM intermediate frequency
+
+ mt2032_set_if_freq(c,freq* 1000*1000/16, 1085*1000*1000,if2,if2,if2);
+}
+
static void set_radio_freq(struct i2c_client *c, int freq)
{
u8 config;
@@ -386,6 +738,11 @@
return;
}
+ if (t->type == TUNER_MT2032) {
+ mt2032_set_radio_freq(c,freq);
+ return;
+ }
+
tun=&tuners[t->type];
config = 0xa4 /* 0xa5 */; /* bit 0 is AFC (set) vs. RF-Signal (clear) */
div=freq + (int)(16*10.7);
@@ -448,6 +805,9 @@
t->type = -1;
}
i2c_attach_client(client);
+ if (t->type == TUNER_MT2032)
+ mt2032_init(client);
+
MOD_INC_USE_COUNT;
return 0;
@@ -497,6 +857,8 @@
dprintk("tuner: type set to %d (%s)\n",
t->type,tuners[t->type].name);
strncpy(client->name, tuners[t->type].name, sizeof(client->name));
+ if (t->type == TUNER_MT2032)
+ mt2032_init(client);
break;
case AUDC_SET_RADIO:
t->radio = 1;
@@ -508,12 +870,11 @@
case VIDIOCSCHAN:
{
struct video_channel *vc = arg;
-
+
t->radio = 0;
- if (t->type == TUNER_PHILIPS_SECAM) {
- t->mode = (vc->norm == VIDEO_MODE_SECAM) ? 1 : 0;
+ t->mode = vc->norm;
+ if (t->freq)
set_tv_freq(client,t->freq);
- }
return 0;
}
case VIDIOCSFREQ:
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