tuner.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:26k
- #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>
- #include "tuner.h"
- #include "audiochip.h"
- /* Addresses to scan */
- static unsigned short normal_i2c[] = {I2C_CLIENT_END};
- static unsigned short normal_i2c_range[] = {0x60,0x6f,I2C_CLIENT_END};
- static unsigned short probe[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short probe_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short ignore[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short ignore_range[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static unsigned short force[2] = { I2C_CLIENT_END, I2C_CLIENT_END };
- static struct i2c_client_address_data addr_data = {
- normal_i2c, normal_i2c_range,
- probe, probe_range,
- ignore, ignore_range,
- force
- };
- /* insmod options */
- static int debug = 0;
- static int type = -1;
- static int addr = 0;
- static char *pal = "b";
- static int tv_range[2] = { 44, 958 };
- static 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
- {
- int type; /* chip type */
- int freq; /* keep track of the current settings */
- int std;
- int radio;
- 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
- 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 NTSC */
- };
- /*
- * 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 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},
- { "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},
- { "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},
- };
- #define TUNERS (sizeof(tuners)/sizeof(struct tunertype))
- /* ---------------------------------------------------------------------- */
- static int tuner_getstatus(struct i2c_client *c)
- {
- 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;
- }
- #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
- // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
- static 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=%02xn",
- 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%02xn",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%02xn",xok);
- if (xok == 1) break;
- xogc--;
- dprintk("mt2032: xogc = 0x%02xn",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 %dn",ret);
- } while (xok != 1 );
- t->xogc=xogc;
- return(1);
- }
- // 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=%dn",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=%dn",n1,n2,f);
- if( (f>spectrum_from) && (f<spectrum_to))
- printk("mt2032 spurcheck triggered: %dn",n1);
- } while ( (f>(f2-spectrum_to)) || (n2>-5));
- n1++;
- } while (n1<5);
- return 1;
- }
- static 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=%dn",
- 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=%dn",
- 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 %dn",
- 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;
- }
- static 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%02xn",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;
- }
- static 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%02xn",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=%dn",sel);
- buf[0]=0x0f;
- buf[1]=sel;
- i2c_master_send(c,buf,2);
- lock=mt2032_check_lo_lock(c);
- return lock;
- }
- static 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=%dn",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 %dn",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 LINTn");
- 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 %dn",ret);
- }
- static 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)
- {
- u8 config;
- u16 div;
- struct tunertype *tun;
- struct tuner *t = c->data;
- unsigned char buffer[4];
- int rc;
- if (t->type == -1) {
- printk("tuner: tuner type not setn");
- 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
- struct and this way is still better than no
- 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]);
- return;
- }
- tun=&tuners[t->type];
- if (freq < tun->thresh1)
- config = tun->VHF_L;
- else if (freq < tun->thresh2)
- config = tun->VHF_H;
- else
- config = tun->UHF;
- /* tv norm specific stuff for multi-norm tuners */
- switch (t->type) {
- case TUNER_PHILIPS_SECAM: // FI1216MF
- /* 0x01 -> ??? no change ??? */
- /* 0x02 -> PAL BDGHI / SECAM L */
- /* 0x04 -> ??? PAL others / SECAM others ??? */
- config &= ~0x02;
- if (t->mode == VIDEO_MODE_SECAM)
- config |= 0x02;
- break;
- case TUNER_TEMIC_4046FM5:
- config &= ~0x0f;
- switch (pal[0]) {
- case 'i':
- case 'I':
- config |= TEMIC_SET_PAL_I;
- break;
- case 'd':
- case 'D':
- config |= TEMIC_SET_PAL_DK;
- break;
- case 'l':
- case 'L':
- config |= TEMIC_SET_PAL_L;
- break;
- case 'b':
- case 'B':
- case 'g':
- case 'G':
- default:
- config |= TEMIC_SET_PAL_BG;
- break;
- }
- break;
- case TUNER_PHILIPS_FQ1216ME:
- config &= ~0x0f;
- switch (pal[0]) {
- case 'i':
- case 'I':
- config |= PHILIPS_SET_PAL_I;
- break;
- case 'l':
- case 'L':
- config |= PHILIPS_SET_PAL_L;
- break;
- case 'd':
- case 'D':
- case 'b':
- case 'B':
- case 'g':
- case 'G':
- config |= PHILIPS_SET_PAL_BGDK;
- break;
- }
- break;
- }
-
- /*
- * Philips FI1216MK2 remark from specification :
- * for channel selection involving band switching, and to ensure
- * smooth tuning to the desired channel without causing
- * unnecessary charge pump action, it is recommended to consider
- * the difference between wanted channel frequency and the
- * current channel frequency. Unnecessary charge pump action
- * will result in very low tuning voltage which may drive the
- * oscillator to extreme conditions.
- *
- * Progfou: specification says to send config data before
- * frequency in case (wanted frequency < current frequency).
- */
- div=freq + tun->IFPCoff;
- if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
- buffer[0] = tun->config;
- buffer[1] = config;
- buffer[2] = (div>>8) & 0x7f;
- buffer[3] = div & 0xff;
- } else {
- buffer[0] = (div>>8) & 0x7f;
- buffer[1] = div & 0xff;
- buffer[2] = tun->config;
- buffer[3] = config;
- }
- dprintk("tuner: tv 0x%02x 0x%02x 0x%02x 0x%02xn",
- buffer[0],buffer[1],buffer[2],buffer[3]);
- if (4 != (rc = i2c_master_send(c,buffer,4)))
- printk("tuner: i2c i/o error: rc == %d (should be 4)n",rc);
- }
- 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)
- {
- struct tunertype *tun;
- struct tuner *t = (struct tuner*)c->data;
- unsigned char buffer[4];
- int rc,div;
- if (freq < radio_range[0]*16 || freq > radio_range[1]*16) {
- printk("tuner: radio freq (%d.%02d) out of range (%d-%d)n",
- freq/16,freq%16*100/16,
- radio_range[0],radio_range[1]);
- return;
- }
- if (t->type == -1) {
- printk("tuner: tuner type not setn");
- return;
- }
- if (t->type == TUNER_MT2032) {
- mt2032_set_radio_freq(c,freq);
- return;
- }
- tun=&tuners[t->type];
- div = freq + (int)(16*10.7);
- buffer[0] = (div>>8) & 0x7f;
- buffer[1] = div & 0xff;
- buffer[2] = tun->config;
- switch (t->type) {
- case TUNER_PHILIPS_FM1216ME_MK3:
- buffer[3] = 0x19;
- break;
- default:
- buffer[3] = 0xa4;
- break;
- }
- dprintk("tuner: radio 0x%02x 0x%02x 0x%02x 0x%02xn",
- buffer[0],buffer[1],buffer[2],buffer[3]);
- if (4 != (rc = i2c_master_send(c,buffer,4)))
- printk("tuner: i2c i/o error: rc == %d (should be 4)n",rc);
- }
- /* ---------------------------------------------------------------------- */
- static int tuner_attach(struct i2c_adapter *adap, int addr,
- unsigned short flags, int kind)
- {
- struct tuner *t;
- struct i2c_client *client;
- if (this_adap > 0)
- return -1;
- this_adap++;
-
- client_template.adapter = adap;
- client_template.addr = addr;
- printk("tuner: chip found @ 0x%xn", addr<<1);
- if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
- return -ENOMEM;
- memcpy(client,&client_template,sizeof(struct i2c_client));
- client->data = t = kmalloc(sizeof(struct tuner),GFP_KERNEL);
- if (NULL == t) {
- kfree(client);
- return -ENOMEM;
- }
- memset(t,0,sizeof(struct tuner));
- if (type >= 0 && type < TUNERS) {
- t->type = type;
- strncpy(client->name, tuners[t->type].name, sizeof(client->name));
- } else {
- t->type = -1;
- }
- i2c_attach_client(client);
- if (t->type == TUNER_MT2032)
- mt2032_init(client);
- MOD_INC_USE_COUNT;
- return 0;
- }
- static int tuner_probe(struct i2c_adapter *adap)
- {
- int rc;
- if (0 != addr) {
- normal_i2c_range[0] = addr;
- normal_i2c_range[1] = addr;
- }
- this_adap = 0;
- switch (adap->id) {
- case I2C_ALGO_BIT | I2C_HW_B_BT848:
- case I2C_ALGO_BIT | I2C_HW_B_RIVA:
- case I2C_ALGO_SAA7134:
- printk("tuner: probing %s i2c adapter [id=0x%x]n",
- adap->name,adap->id);
- rc = i2c_probe(adap, &addr_data, tuner_attach);
- break;
- default:
- printk("tuner: ignoring %s i2c adapter [id=0x%x]n",
- adap->name,adap->id);
- rc = 0;
- /* nothing */
- }
- return rc;
- }
- static int tuner_detach(struct i2c_client *client)
- {
- struct tuner *t = (struct tuner*)client->data;
- i2c_detach_client(client);
- kfree(t);
- kfree(client);
- MOD_DEC_USE_COUNT;
- return 0;
- }
- static int
- tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
- {
- struct tuner *t = (struct tuner*)client->data;
- int *iarg = (int*)arg;
- #if 0
- __u16 *sarg = (__u16*)arg;
- #endif
- switch (cmd) {
- /* --- configuration --- */
- case TUNER_SET_TYPE:
- if (t->type != -1)
- return 0;
- if (*iarg < 0 || *iarg >= TUNERS)
- return 0;
- t->type = *iarg;
- 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;
- break;
-
- /* --- v4l ioctls --- */
- /* take care: bttv does userspace copying, we'll get a
- kernel pointer here... */
- case VIDIOCSCHAN:
- {
- struct video_channel *vc = arg;
- t->radio = 0;
- t->mode = vc->norm;
- if (t->freq)
- set_tv_freq(client,t->freq);
- return 0;
- }
- case VIDIOCSFREQ:
- {
- unsigned long *v = arg;
- if (t->radio) {
- dprintk("tuner: radio freq set to %d.%02dn",
- (*iarg)/16,(*iarg)%16*100/16);
- set_radio_freq(client,*v);
- } else {
- dprintk("tuner: tv freq set to %d.%02dn",
- (*iarg)/16,(*iarg)%16*100/16);
- set_tv_freq(client,*v);
- }
- t->freq = *v;
- return 0;
- }
- case VIDIOCGTUNER:
- {
- struct video_tuner *vt = arg;
- if (t->radio)
- vt->signal = tuner_signal(client);
- return 0;
- }
- case VIDIOCGAUDIO:
- {
- struct video_audio *va = arg;
- if (t->radio)
- va->mode = (tuner_stereo(client) ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO);
- return 0;
- }
-
- #if 0
- /* --- old, obsolete interface --- */
- case TUNER_SET_TVFREQ:
- dprintk("tuner: tv freq set to %d.%02dn",
- (*iarg)/16,(*iarg)%16*100/16);
- set_tv_freq(client,*iarg);
- t->radio = 0;
- t->freq = *iarg;
- break;
- case TUNER_SET_RADIOFREQ:
- dprintk("tuner: radio freq set to %d.%02dn",
- (*iarg)/16,(*iarg)%16*100/16);
- set_radio_freq(client,*iarg);
- t->radio = 1;
- t->freq = *iarg;
- break;
- case TUNER_SET_MODE:
- if (t->type != TUNER_PHILIPS_SECAM) {
- dprintk("tuner: trying to change mode for other than TUNER_PHILIPS_SECAMn");
- } else {
- int mode=(*sarg==VIDEO_MODE_SECAM)?1:0;
- dprintk("tuner: mode set to %dn", *sarg);
- t->mode = mode;
- set_tv_freq(client,t->freq);
- }
- break;
- #endif
- default:
- /* nothing */
- break;
- }
-
- return 0;
- }
- /* ----------------------------------------------------------------------- */
- static struct i2c_driver driver = {
- name: "i2c TV tuner driver",
- id: I2C_DRIVERID_TUNER,
- flags: I2C_DF_NOTIFY,
- attach_adapter: tuner_probe,
- detach_client: tuner_detach,
- command: tuner_command,
- };
- static struct i2c_client client_template =
- {
- name: "(unset)",
- flags: I2C_CLIENT_ALLOW_USE,
- driver: &driver,
- };
- static int tuner_init_module(void)
- {
- i2c_add_driver(&driver);
- return 0;
- }
- static void tuner_cleanup_module(void)
- {
- i2c_del_driver(&driver);
- }
- module_init(tuner_init_module);
- module_exit(tuner_cleanup_module);
- /*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */