#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "xf86.h"
#include "xf86i2c.h"
#include "fi1236.h"
#include "tda9885.h"
#include "i2c_def.h"
#define NUM_TUNERS 8
const FI1236_parameters tuner_parms[NUM_TUNERS] =
{
/* 0 - FI1236 */
{ 733 ,884 ,12820 ,2516 ,7220 ,0xA2 ,0x94, 0x34, 0x8e },
/* !!!based on documentation - it should be:
{733 ,16*55.25 ,16*801.25 ,16*160 ,16*454 ,0xA0 ,0x90, 0x30, 0x8e},*/
/* 1 - FI1216 */
{ 623 ,16*48.75 ,16*855.25 ,16*170 ,16*450 ,0xA0 ,0x90, 0x30, 0x8e },
/* 2 - TEMIC FN5AL */
{ 623 ,16*45.75 ,16*855.25 ,16*169 ,16*454 ,0xA0 ,0x90, 0x30, 0x8e },
/* 3 - MT2032.. */
{ 733 ,768 ,13760 , 0 , 0 , 0 , 0, 0, 0 },
/* 4 - FI1246 */
{ 623 ,16*45.75 ,16*855.25 ,16*170 ,16*450 ,0xA0 ,0x90, 0x30, 0x8e },
/* 5 - FI1256 */
{ 623 ,16*49.75 ,16*863.25 ,16*170 ,16*450 ,0xA0 ,0x90, 0x30, 0x8e },
/* 6 - FI1236W */
/*{ 733 ,884 ,12820 ,2516 ,7220 ,0x1 ,0x2, 0x4, 0x8e },*/
{ 732, 16*55.25, 16*801.25, 16*160, 16*442, 0x1, 0x2, 0x4, 0x8e },
/* 7 - FM1216ME */
{ 623 ,16*48.25 ,16*863.25 ,16*158.00 ,16*442.00 ,0x1 ,0x2, 0x4, 0x8e }
};
FI1236Ptr Detect_FI1236(I2CBusPtr b, I2CSlaveAddr addr)
{
FI1236Ptr f;
I2CByte a;
f = xcalloc(1,sizeof(FI1236Rec));
if(f == NULL) return NULL;
f->d.DevName = strdup("FI12xx Tuner");
f->d.SlaveAddr = addr;
f->d.pI2CBus = b;
f->d.NextDev = NULL;
f->d.StartTimeout = b->StartTimeout;
f->d.BitTimeout = b->BitTimeout;
f->d.AcknTimeout = b->AcknTimeout;
f->d.ByteTimeout = b->ByteTimeout;
f->type=TUNER_TYPE_FI1236;
f->afc_timer_installed=FALSE;
f->last_afc_hint=TUNER_OFF;
f->video_if=45.7812;
if(!I2C_WriteRead(&(f->d), NULL, 0, &a, 1))
{
free(f);
return NULL;
}
FI1236_set_tuner_type(f, TUNER_TYPE_FI1236);
if(!I2CDevInit(&(f->d)))
{
free(f);
return NULL;
}
return f;
}
static void MT2032_dump_parameters(FI1236Ptr f, MT2032_parameters *m)
{
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: input f_rf=%g f_if1=%g f_if2=%g f_ref=%g f_ifbw=%g f_step=%g\n",
m->f_rf, m->f_if1, m->f_if2, m->f_ref, m->f_ifbw, m->f_step);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: computed f_lo1=%g f_lo2=%g LO1I=%d LO2I=%d SEL=%d STEP=%d NUM=%d\n",
m->f_lo1, m->f_lo2, m->LO1I, m->LO2I, m->SEL, m->STEP, m->NUM);
}
static void MT2032_getid(FI1236Ptr f)
{
CARD8 out[4];
CARD8 in;
in=0x11;
I2C_WriteRead(&(f->d), (I2CByte *)&in, 1, out, 4);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: Company code 0x%02x%02x, part code 0x%02x, revision code 0x%02x\n",
out[0], out[1], out[2], out[3]);
}
/* might be buggy */
#if 0
static void MT2032_shutdown(FI1236Ptr f)
{
CARD8 data[10];
data[0]=0x00; /* start with register 0x00 */
data[1]=0x1A;
data[2]=0x44;
data[3]=0x20;
I2C_WriteRead(&(f->d), (I2CByte *)data, 4, NULL, 0);
data[0]=0x05; /* now start with register 0x05 */
data[1]=0xD7;
data[2]=0x14;
data[3]=0x05;
I2C_WriteRead(&(f->d), (I2CByte *)data, 4, NULL, 0);
data[0]=0x0B; /* now start with register 0x05 */
data[1]=0x8F;
data[2]=0x07;
data[3]=0x43;
I2C_WriteRead(&(f->d), (I2CByte *)data, 4, NULL, 0);
usleep(15000);
}
#endif
static void MT2032_dump_status(FI1236Ptr f);
static void MT2032_init(FI1236Ptr f)
{
CARD8 data[10];
CARD8 value;
CARD8 xogc = 0x00;
MT2032_getid(f);
data[0]=0x02; /* start with register 0x02 */
data[1]=0xFF;
data[2]=0x0F;
data[3]=0x1F;
I2C_WriteRead(&(f->d), (I2CByte *)data, 4, NULL, 0);
data[0]=0x06; /* now start with register 0x06 */
data[1]=0xE4;
data[2]=0x8F;
data[3]=0xC3;
data[4]=0x4E;
data[5]=0xEC;
I2C_WriteRead(&(f->d), (I2CByte *)data, 6, NULL, 0);
data[0]=0x0d; /* now start with register 0x0d */
data[1]=0x32;
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
while(1) {
usleep(15000); /* wait 15 milliseconds */
data[0]=0x0e; /* register number 7, status */
value=0xFF;
if(!I2C_WriteRead(&(f->d), (I2CByte *)data, 1, &value, 1))
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: failed to read XOK\n");
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: XOK=%d\n", value & 0x01);
if(value & 1) break;
data[0]=0x07;
if(!I2C_WriteRead(&(f->d), (I2CByte *)data, 1, &value, 1))
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: failed to read XOGC\n");
xogc=value & 0x7;
if(xogc==4){
break; /* XOGC has reached 4.. stop */
}
xogc--;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: try XOGC=%d\n", xogc);
usleep(15000);
data[0]=0x07; /* register number 7, control byte 2 */
data[1]=0x08 | xogc;
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
}
f->xogc=xogc;
/* wait before continuing */
usleep(15000); /* wait 50 milliseconds */
MT2032_dump_status(f);
}
static int MT2032_no_spur_in_band(MT2032_parameters *m)
{
int n_max, n1, n2;
double f_test;
n_max=5;
n1=1;
while(1){
n2=-n1;
f_test=n1*(m->f_lo1-m->f_lo2);
while(1){
n2--;
f_test=f_test-m->f_lo2;
xf86DrvMsg(0, X_INFO, "testing f_test=%g n1=%d n2=%d f_lo1=%g f_lo2=%g f_if2=%g\n", f_test, n1, n2, m->f_lo1, m->f_lo2, m->f_if2);
xf86DrvMsg(0, X_INFO, "d_f=%g f_ifbw=%g\n",fabs(fabs(f_test)-m->f_if2), m->f_ifbw);
if((fabs(fabs(f_test)-m->f_if2)*2.0)<=m->f_ifbw)return 0;
if(n2<=-n_max)break;
/* this line in the manual is bogus. I say it is faster
and more correct to go over all harmonics.. */
#if 0
if(f_test<(m->f_lo2-m->f_if2-m->f_ifbw))break;
#endif
}
n1++;
if(n1>=n_max)return 1;
}
}
static void MT2032_calculate_register_settings(MT2032_parameters *m, double f_rf, double f_if1, double f_if2, double f_ref, double f_ifbw, double f_step)
{
int n;
m->f_rf=f_rf;
m->f_if1=f_if1;
m->f_if2=f_if2;
m->f_ref=f_ref;
m->f_ifbw=f_ifbw;
m->f_step=f_step;
m->f_lo1=f_rf+f_if1;
m->LO1I=(int)floor((m->f_lo1/f_ref)+0.5);
m->f_lo1=f_ref*m->LO1I;
m->f_lo2=m->f_lo1-f_rf-f_if2;
/* check for spurs */
n=1;
while(n<3){
if(MT2032_no_spur_in_band(m))break;
if(m->f_lo1<(f_rf+f_if1)){
m->LO1I+=n;
} else {
m->LO1I-=n;
}
m->f_lo1=m->LO1I*f_ref;
m->f_lo2=m->f_lo1-f_rf-f_if2;
n++;
}
/* xf86DrvMsg(0, X_INFO, "MT2032: n=%d\n", n); */
/* select VCO */
/* m->f_lo1>1100.0 */
if(m->f_lo1<1370.0)m->SEL=4;
else
if(m->f_lo1<1530.0)m->SEL=3;
else
if(m->f_lo1<1720.0)m->SEL=2;
else
if(m->f_lo1<1890.0)m->SEL=1;
else /* m->f_lo1 < 1958.0 */
m->SEL=0;
/* calculate the rest of the registers */
m->LO2I=(int)floor(m->f_lo2/f_ref);
m->STEP=(int)floor(3780.0*f_step/f_ref);
m->NUM=(int)floor(3780.0*(m->f_lo2/f_ref-m->LO2I));
m->NUM=m->STEP*(int)floor((1.0*m->NUM)/(1.0*m->STEP)+0.5);
}
static int MT2032_wait_for_lock(FI1236Ptr f)
{
int n;
CARD8 data[10];
CARD8 value;
n=12;
while(1){
data[0]=0x0e; /* register number 7, status */
I2C_WriteRead(&(f->d), (I2CByte *)data, 1, &value, 1);
/* xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: LO1LK=%d LO2LK=%d\n", (value & 0x04)>>2, (value & 0x02)>>1); */
if((value & 6)==6) break;
usleep(1500);
n--;
if(n<0)break;
}
if(n<0){
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: failed to set frequency\n");
return 0;
}
return 1;
}
static void MT2032_implement_settings(FI1236Ptr f, MT2032_parameters *m)
{
CARD8 data[10];
CARD8 value;
data[0]=0x00; /* start with register 0x00 */
data[1]=(m->LO1I>>3)-1;
data[2]=(m->SEL<<4)|(m->LO1I & 0x7);
data[3]=0x86;
I2C_WriteRead(&(f->d), (I2CByte *)data, 4, NULL, 0);
data[0]=0x05; /* start with register 0x05 */
data[1]=((m->LO2I & 0x7)<<5)|((m->LO2I>>3)-1);
if(m->f_rf<400.0)data[2]=0xe4;
else data[2]=0xf4;
I2C_WriteRead(&(f->d), (I2CByte *)data, 3, NULL, 0);
data[0]=0x07; /* register number 7, control byte 2 */
I2C_WriteRead(&(f->d), (I2CByte *)data, 1, &value, 1);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: using XOGC=%d\n", (value & 0x07));
data[1]=8 | (value & 0x7);
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
data[0]=0x0b; /* start with register 0x0b */
data[1]=m->NUM & 0xff;
data[2]=(1<<7)|((m->NUM >> 8) & 0x0f);
I2C_WriteRead(&(f->d), (I2CByte *)data, 3, NULL, 0);
MT2032_wait_for_lock(f);
}
static void MT2032_optimize_VCO(FI1236Ptr f, MT2032_parameters *m)
{
CARD8 data[10];
CARD8 value;
CARD8 TAD1;
data[0]=0x0f; /* register number 7, status */
I2C_WriteRead(&(f->d), (I2CByte *)data, 1, &value, 1);
TAD1=value & 0x07;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: TAD1=%d SEL=%d\n", TAD1, m->SEL);
if(TAD1 < 2)return;
if(TAD1==2){
if(m->SEL==0)return;
m->SEL--;
} else {
if(m->SEL>=4)return;
m->SEL++;
}
data[0]=0x01; /* start with register 1 */
data[1]=(m->SEL<<4)|(m->LO1I & 0x7);
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
}
static int FI1236_get_afc_hint(FI1236Ptr f)
{
CARD8 out;
CARD8 AFC;
if ((f->type == TUNER_TYPE_FM1216ME) || (f->type == TUNER_TYPE_FI1236W))
{
TDA9885Ptr t = (TDA9885Ptr)f->afc_source;
if (t == NULL)
return TUNER_OFF;
tda9885_getstatus(t);
tda9885_dumpstatus(t);
AFC = t->afc_status & 0x0f;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: FI1236_get_afc_hint: %i\n", AFC);
if (AFC == 0) return TUNER_TUNED;
else if (AFC <= 0x07)return TUNER_JUST_BELOW;
else if (AFC < 0x0f )return TUNER_JUST_ABOVE;
else if (AFC == 0x0f)return TUNER_TUNED;
}
else
{
I2C_WriteRead(&(f->d), NULL, 0, &out, 1);
AFC=out & 0x7;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: FI1236_get_afc_hint: %i\n", AFC);
if(AFC==2)return TUNER_TUNED;
if(AFC==3)return TUNER_JUST_BELOW;
if(AFC==1)return TUNER_JUST_ABOVE;
return TUNER_OFF;
}
return TUNER_OFF;
}
static int MT2032_get_afc_hint(FI1236Ptr f)
{
CARD8 in;
CARD8 out[2];
CARD8 AFC;
in=0x0e;
I2C_WriteRead(&(f->d), (I2CByte *)&in, 1, out, 2);
AFC=(out[0]>>4) & 0x7;
#if 0
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC=%d TAD1=%d TAD2=%d\n", AFC, out[1] & 0x7, (out[1]>>4)& 0x07);
#endif
if(AFC==2)return TUNER_TUNED;
if(AFC==3)return TUNER_JUST_BELOW;
if(AFC==1)return TUNER_JUST_ABOVE;
return TUNER_OFF;
}
/* this function is for external use only */
int TUNER_get_afc_hint(FI1236Ptr f)
{
if(f->afc_timer_installed)return TUNER_STILL_TUNING;
return f->last_afc_hint;
if(f->type==TUNER_TYPE_MT2032)
return MT2032_get_afc_hint(f);
else
return FI1236_get_afc_hint(f);
}
static void MT2032_dump_status(FI1236Ptr f)
{
CARD8 in;
CARD8 out[2];
CARD8 AFC;
CARD8 LDONrb;
CARD8 LO1LK, LO2LK, XOK;
CARD8 TAD2, TAD1;
in=0x0e;
I2C_WriteRead(&(f->d), (I2CByte *)&in, 1, out, 2);
XOK=out[0] & 1;
LO1LK=(out[0]>>2) &1;
LO2LK=(out[0]>>1) &1;
LDONrb=(out[0]>>3) &1;
AFC=(out[0]>>4) & 0x7;
TAD1=(out[1] & 0x7);
TAD2=(out[1]>>4) & 0x7;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: status: XOK=%d LO1LK=%d LO2LK=%d LDONrb=%d AFC=%d TAD1=%d TAD2=%d\n",
XOK, LO1LK, LO2LK, LDONrb, AFC, TAD1, TAD2);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: status: OSCILLATOR:%s PLL1:%s PLL2:%s\n",
XOK ? "ok":"off", LO1LK ? "locked" : "off" , LO2LK ? "locked" : "off");
}
static void MT2032_tune(FI1236Ptr f, double freq, double step)
{
MT2032_parameters m;
CARD8 data[10];
int i;
/* NTSC IF is 44mhz.. but 733/16=45.8125 and all TDAXXXX docs mention
45.75, 39, 58.75 and 30. */
#if 0
MT2032_calculate_register_settings(&m, freq, 1090.0, 45.125, 5.25, 6.0, step);
MT2032_calculate_register_settings(&m, freq, 1090.0, 45.74, 5.25, 6.0, step);
#endif
MT2032_calculate_register_settings(&m, freq, 1090.0, f->video_if, 5.25, 3.0, step);
MT2032_dump_parameters(f, &m);
MT2032_implement_settings(f, &m);
/* MT2032_dump_parameters(f, &m); */
for(i=0;i<3;i++){
MT2032_optimize_VCO(f, &m);
if(MT2032_wait_for_lock(f)){
data[0]=0x02; /* LO Gain control register 0x02 */
data[1]=0x20;
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
return;
}
data[0]=0x07;
data[1]=0x88|f->xogc;
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
usleep(15000);
data[1]=0x08|f->xogc;
I2C_WriteRead(&(f->d), (I2CByte *)data, 2, NULL, 0);
}
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "MT2032: failed to set frequency\n");
}
void FI1236_set_tuner_type(FI1236Ptr f, int type)
{
f->type=type;
if(type>=NUM_TUNERS)type = NUM_TUNERS-1;
if(type<0)type = 0;
memcpy(&(f->parm), &(tuner_parms[type]), sizeof(FI1236_parameters));
f->original_frequency=f->parm.min_freq;
f->afc_delta=0;
if(type==TUNER_TYPE_MT2032){
MT2032_init(f);
return;
}
}
static CARD32 AFC_TimerCallback(OsTimerPtr timer, CARD32 time, pointer data){
FI1236Ptr f=(FI1236Ptr)data;
if(FI1236_AFC(f))return 150;
else {
f->afc_timer_installed=FALSE;
f->afc_count=0;
return 0;
}
}
void FI1236_tune(FI1236Ptr f, CARD32 frequency)
{
CARD16 divider;
CARD8 data;
if(frequency < f->parm.min_freq) frequency = f->parm.min_freq;
if(frequency > f->parm.max_freq) frequency = f->parm.max_freq;
divider = (f->parm.fcar+(CARD16)frequency) & 0x7fff;
f->tuner_data.div1 = (CARD8)((divider>>8)&0x7f);
f->tuner_data.div2 = (CARD8)(divider & 0xff);
f->tuner_data.control = f->parm.control;
if(frequency < f->parm.threshold1)
{
f->tuner_data.band = f->parm.band_low;
}
else if (frequency < f->parm.threshold2)
{
f->tuner_data.band = f->parm.band_mid;
}
else
{
f->tuner_data.band = f->parm.band_high;
}
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "Setting tuner band to %d\n", f->tuner_data.band);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "Setting tuner frequency to %d\n", (int)frequency);
if ((f->type == TUNER_TYPE_FM1216ME) || (f->type == TUNER_TYPE_FI1236W))
{
f->tuner_data.aux = 0x20;
I2C_WriteRead(&(f->d), (I2CByte *)&(f->tuner_data), 5, NULL, 0);
I2C_WriteRead(&(f->d), NULL, 0, &data, 1);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "Tuner status %x\n", data);
}
else
I2C_WriteRead(&(f->d), (I2CByte *)&(f->tuner_data), 4, NULL, 0);
}
void TUNER_set_frequency(FI1236Ptr f, CARD32 frequency)
{
if(frequency < f->parm.min_freq) frequency = f->parm.min_freq;
if(frequency > f->parm.max_freq) frequency = f->parm.max_freq;
f->afc_delta=0;
f->original_frequency=frequency;
if(f->type==TUNER_TYPE_MT2032)
{
MT2032_tune(f, (1.0*frequency)/16.0, 0.0625);
} else
{
FI1236_tune(f, frequency);
}
if(!f->afc_timer_installed)
{
f->afc_timer_installed=TRUE;
/* RegisterBlockAndWakeupHandlers(FI1236_BlockHandler, AFCWakeup, f); */
TimerSet(NULL, 0, 300, AFC_TimerCallback, f);
}
}
int FI1236_AFC(FI1236Ptr f)
{
#if 0
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: f=%p f->count=%d f->original_frequency=%d f->afc_delta=%d\n", f, f->afc_count, f->original_frequency, f->afc_delta);
#endif
f->afc_count++;
if(f->type==TUNER_TYPE_MT2032)
{
f->last_afc_hint=MT2032_get_afc_hint(f);
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: afc_hint=%d\n", f->last_afc_hint);
if(f->last_afc_hint==TUNER_TUNED)return 0;
if(f->afc_count>3)f->last_afc_hint=TUNER_OFF;
if(f->last_afc_hint==TUNER_OFF)
{
f->afc_delta=0;
} else
f->afc_delta+=f->last_afc_hint;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: Setting tuner frequency to %g\n", (0.5*(2*f->original_frequency+f->afc_delta))/16.0);
MT2032_tune(f, (1.0*f->original_frequency+0.5*f->afc_delta)/16.0, 0.03125);
if(f->last_afc_hint==TUNER_OFF)return 0;
return 1; /* call me again */
} else
{
f->last_afc_hint=FI1236_get_afc_hint(f);
if(f->last_afc_hint==TUNER_TUNED)
{
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: TUNER_TUNNED\n");
return 0;
}
if(f->afc_count>3)f->last_afc_hint=TUNER_OFF;
if(f->last_afc_hint==TUNER_OFF)
{
f->afc_delta=0;
} else
f->afc_delta+=f->last_afc_hint;
xf86DrvMsg(f->d.pI2CBus->scrnIndex, X_INFO, "AFC: Setting tuner frequency to %g\n", (0.5*(2*f->original_frequency+f->afc_delta))/16.0);
FI1236_tune(f, f->original_frequency+f->afc_delta);
if(f->last_afc_hint==TUNER_OFF)return 0;
return 1; /* call me again */
}
return 0; /* done */
}
void fi1236_dump_status(FI1236Ptr f)
{
if(f->type==TUNER_TYPE_MT2032){
MT2032_dump_status(f);
}
}
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