?? tuner.c
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#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/i2c.h>
#include <linux/types.h>
#include <linux/videodev.h>
#include <linux/init.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
#include "tuner.h"
#include "audiochip.h"
#include "i2c-compat.h"
#else
#include <media/tuner.h>
#include <media/audiochip.h>
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,71)
# define strlcpy(dest,src,len) strncpy(dest,src,(len)-1)
#endif
/* Addresses to scan */
static unsigned short normal_i2c[] = {I2C_CLIENT_END};
static unsigned short normal_i2c_range[] = {0x60,0x6f,I2C_CLIENT_END};
I2C_CLIENT_INSMOD;
#define UNSET (-1U)
/* insmod options */
static unsigned int debug = 0;
static unsigned int type = UNSET;
static unsigned int addr = 0;
static char *pal = "b";
static unsigned int tv_range[2] = { 44, 958 };
static unsigned int radio_range[2] = { 65, 108 };
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 {
unsigned int type; /* chip type */
unsigned int freq; /* keep track of the current settings */
unsigned int std;
unsigned int radio;
unsigned int mode; /* current norm for multi-norm tuners */
unsigned int input;
// only for MT2032
unsigned int xogc;
unsigned int radio_if2;
void (*tv_freq)(struct i2c_client *c, unsigned int freq);
void (*radio_freq)(struct i2c_client *c, unsigned int freq);
};
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
standard BG I L L2 D
picture IF 38.9 38.9 38.9 33.95 38.9
sound 1 33.4 32.9 32.4 40.45 32.4
sound 2 33.16
NICAM 33.05 32.348 33.05 33.05
*/
#define TEMIC_SET_PAL_I 0x05
#define TEMIC_SET_PAL_DK 0x09
#define TEMIC_SET_PAL_L 0x0a // SECAM ?
#define TEMIC_SET_PAL_L2 0x0b // change IF !
#define TEMIC_SET_PAL_BG 0x0c
/* tv tuner system standard selection for Philips FQ1216ME
this value takes the low bits of control byte 2
from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
standard BG DK I L L`
picture carrier 38.90 38.90 38.90 38.90 33.95
colour 34.47 34.47 34.47 34.47 38.38
sound 1 33.40 32.40 32.90 32.40 40.45
sound 2 33.16 - - - -
NICAM 33.05 33.05 32.35 33.05 39.80
*/
#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
#define PHILIPS_SET_PAL_BGDK 0x09
#define PHILIPS_SET_PAL_L2 0x0a
#define PHILIPS_SET_PAL_L 0x0b
/* system switching for Philips FI1216MF MK2
from datasheet "1996 Jul 09",
standard BG L L'
picture carrier 38.90 38.90 33.95
colour 34.47 34.37 38.38
sound 1 33.40 32.40 40.45
sound 2 33.16 - -
NICAM 33.05 33.05 39.80
*/
#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
#define PHILIPS_MF_SET_PAL_L 0x03 // France
#define PHILIPS_MF_SET_PAL_L2 0x02 // L'
/* ---------------------------------------------------------------------- */
struct tunertype
{
char *name;
unsigned char Vendor;
unsigned char Type;
unsigned short thresh1; /* band switch VHF_LO <=> VHF_HI */
unsigned short thresh2; /* band switch VHF_HI <=> UHF */
unsigned char VHF_L;
unsigned char VHF_H;
unsigned char UHF;
unsigned char config;
unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
732 =16*45.75 NTSCi,
940 =58.75 NTSC-Japan */
};
/*
* The floats in the tuner struct are computed at compile time
* by gcc and cast back to integers. Thus we don't violate the
* "no float in kernel" rule.
*/
static struct tunertype tuners[] = {
{ "Temic PAL (4002 FH5)", TEMIC, PAL,
16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
{ "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
{ "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
{ "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
{ "NoTuner", NoTuner, NOTUNER,
0,0,0x00,0x00,0x00,0x00,0x00},
{ "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
{ "Temic NTSC (4032 FY5)", TEMIC, NTSC,
16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
{ "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
{ "Temic NTSC (4036 FY5)", TEMIC, NTSC,
16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
{ "Alps HSBH1", TEMIC, NTSC,
16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
{ "Alps TSBE1",TEMIC,PAL,
16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
{ "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
{ "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
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_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*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,
16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
{ "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
{ "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
{ "Temic NTSC (4039 FR5)", TEMIC, NTSC,
16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
{ "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
{ "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
{ "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
{ "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},
{ "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
16*137.25,16*317.25,0x01,0x02,0x08,0x8e,732 }, // Corrected to NTSC=732 (was:940)
{ "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */
16*169,16*464,0xA0,0x90,0x30,0x8e,623},
{ "MT20xx 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},
{ "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
{ "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
{ "HITACHI V7-J180AT", HITACHI, NTSC,
16*170.00, 16*450.00, 0x01,0x02,0x00,0x8e,940 },
{ "Philips PAL_MK (FI1216 MK)", Philips, PAL,
16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
{ "Philips 1236D ATSC/NTSC daul in",Philips,ATSC,
16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
};
#define TUNERS ARRAY_SIZE(tuners)
/* ---------------------------------------------------------------------- */
static int tuner_getstatus(struct i2c_client *c)
{
unsigned char byte;
struct tuner *t = i2c_get_clientdata(c);
if (t->type == TUNER_MT2032)
return 0;
if (1 != i2c_master_recv(c,&byte,1))
return 0;
return byte;
}
#define TUNER_POR 0x80
#define TUNER_FL 0x40
#define TUNER_MODE 0x38
#define TUNER_AFC 0x07
#define TUNER_STEREO 0x10 /* radio mode */
#define TUNER_SIGNAL 0x07 /* radio mode */
static int tuner_signal(struct i2c_client *c)
{
return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
}
static int tuner_stereo(struct i2c_client *c)
{
return (tuner_getstatus (c) & TUNER_STEREO);
}
#if 0 /* unused */
static int tuner_islocked (struct i2c_client *c)
{
return (tuner_getstatus (c) & TUNER_FL);
}
static int tuner_afcstatus (struct i2c_client *c)
{
return (tuner_getstatus (c) & TUNER_AFC) - 2;
}
static int tuner_mode (struct i2c_client *c)
{
return (tuner_getstatus (c) & TUNER_MODE) >> 3;
}
#endif
/* ---------------------------------------------------------------------- */
#define MT2032 0x04
#define MT2030 0x06
#define MT2040 0x07
#define MT2050 0x42
static char *microtune_part[] = {
[ MT2030 ] = "MT2030",
[ MT2032 ] = "MT2032",
[ MT2040 ] = "MT2040",
[ MT2050 ] = "MT2050",
};
// IsSpurInBand()?
static 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;
}
static int mt2032_compute_freq(unsigned int rfin,
unsigned int if1, unsigned int if2,
unsigned int spectrum_from,
unsigned int spectrum_to,
unsigned char *buf,
int *ret_sel,
unsigned int xogc) //all in Hz
{
unsigned 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);
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