drivers/media/video/tuner.c

   1 #include <linux/module.h>
   2 #include <linux/kernel.h>
   3 #include <linux/sched.h>
   4 #include <linux/string.h>
   5 #include <linux/timer.h>
   6 #include <linux/delay.h>
   7 #include <linux/errno.h>
   8 #include <linux/slab.h>
   9 #include <linux/poll.h>
  10 #include <linux/i2c.h>
  11 #include <linux/types.h>
  12 #include <linux/videodev.h>
  13 #include <linux/init.h>
  14
  15 #include <media/tuner.h>
  16 #include <media/audiochip.h>
  17
  18 /* Addresses to scan */
  19 static unsigned short normal_i2c[] = {I2C_CLIENT_END};
  20 static unsigned short normal_i2c_range[] = {0x60,0x6f,I2C_CLIENT_END};
  21 I2C_CLIENT_INSMOD;
  22
  23 #define UNSET (-1U)
  24
  25 /* insmod options */
  26 static unsigned int debug =  0;
  27 static unsigned int type  =  UNSET;
  28 static unsigned int addr  =  0;
  29 static unsigned int tv_range[2]    = { 44, 958 };
  30 static unsigned int radio_range[2] = { 65, 108 };
  31 static unsigned int tv_antenna = 1;
  32 static unsigned int radio_antenna = 0;
  33 MODULE_PARM(debug,"i");
  34 MODULE_PARM(type,"i");
  35 MODULE_PARM(addr,"i");
  36 MODULE_PARM(tv_range,"2i");
  37 MODULE_PARM(radio_range,"2i");
  38 MODULE_PARM(tv_antenna,"i");
  39 MODULE_PARM(radio_antenna,"i");
  40
  41 #define optimize_vco 1
  42
  43 MODULE_DESCRIPTION("device driver for various TV and TV+FM radio tuners");
  44 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");
  45 MODULE_LICENSE("GPL");
  46
  47 static int this_adap;
  48 #define dprintk     if (debug) printk
  49
  50 struct tuner {
  51         unsigned int type;            /* chip type */
  52         unsigned int freq;            /* keep track of the current settings */
  53         v4l2_std_id  std;
  54         int          using_v4l2;
  55
  56         unsigned int radio;
  57         unsigned int input;
  58
  59         // only for MT2032
  60         unsigned int xogc;
  61         unsigned int radio_if2;
  62
  63         void (*tv_freq)(struct i2c_client *c, unsigned int freq);
  64         void (*radio_freq)(struct i2c_client *c, unsigned int freq);
  65 };
  66
  67 static struct i2c_driver driver;
  68 static struct i2c_client client_template;
  69
  70 /* ---------------------------------------------------------------------- */
  71
  72 /* tv standard selection for Temic 4046 FM5
  73    this value takes the low bits of control byte 2
  74    from datasheet Rev.01, Feb.00
  75      standard     BG      I       L       L2      D
  76      picture IF   38.9    38.9    38.9    33.95   38.9
  77      sound 1      33.4    32.9    32.4    40.45   32.4
  78      sound 2      33.16
  79      NICAM        33.05   32.348  33.05           33.05
  80  */
  81 #define TEMIC_SET_PAL_I         0x05
  82 #define TEMIC_SET_PAL_DK        0x09
  83 #define TEMIC_SET_PAL_L         0x0a // SECAM ?
  84 #define TEMIC_SET_PAL_L2        0x0b // change IF !
  85 #define TEMIC_SET_PAL_BG        0x0c
  86
  87 /* tv tuner system standard selection for Philips FQ1216ME
  88    this value takes the low bits of control byte 2
  89    from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
  90      standard           BG      DK      I       L       L`
  91      picture carrier    38.90   38.90   38.90   38.90   33.95
  92      colour             34.47   34.47   34.47   34.47   38.38
  93      sound 1            33.40   32.40   32.90   32.40   40.45
  94      sound 2            33.16   -       -       -       -
  95      NICAM              33.05   33.05   32.35   33.05   39.80
  96  */
  97 #define PHILIPS_SET_PAL_I       0x01 /* Bit 2 always zero !*/
  98 #define PHILIPS_SET_PAL_BGDK    0x09
  99 #define PHILIPS_SET_PAL_L2      0x0a
 100 #define PHILIPS_SET_PAL_L       0x0b
 101
 102 /* system switching for Philips FI1216MF MK2
 103    from datasheet "1996 Jul 09",
 104     standard         BG     L      L'
 105     picture carrier  38.90  38.90  33.95
 106     colour           34.47  34.37  38.38
 107     sound 1          33.40  32.40  40.45
 108     sound 2          33.16  -      -
 109     NICAM            33.05  33.05  39.80
 110  */
 111 #define PHILIPS_MF_SET_BG       0x01 /* Bit 2 must be zero, Bit 3 is system output */
 112 #define PHILIPS_MF_SET_PAL_L    0x03 // France
 113 #define PHILIPS_MF_SET_PAL_L2   0x02 // L'
 114
 115
 116 /* ---------------------------------------------------------------------- */
 117
 118 struct tunertype
 119 {
 120         char *name;
 121         unsigned char Vendor;
 122         unsigned char Type;
 123
 124         unsigned short thresh1;  /*  band switch VHF_LO <=> VHF_HI  */
 125         unsigned short thresh2;  /*  band switch VHF_HI <=> UHF     */
 126         unsigned char VHF_L;
 127         unsigned char VHF_H;
 128         unsigned char UHF;
 129         unsigned char config;
 130         unsigned short IFPCoff; /* 622.4=16*38.90 MHz PAL,
 131                                    732  =16*45.75 NTSCi,
 132                                    940  =58.75 NTSC-Japan */
 133 };
 134
 135 /*
 136  *      The floats in the tuner struct are computed at compile time
 137  *      by gcc and cast back to integers. Thus we don't violate the
 138  *      "no float in kernel" rule.
 139  */
 140 static struct tunertype tuners[] = {
 141         { "Temic PAL (4002 FH5)", TEMIC, PAL,
 142           16*140.25,16*463.25,0x02,0x04,0x01,0x8e,623},
 143         { "Philips PAL_I (FI1246 and compatibles)", Philips, PAL_I,
 144           16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623},
 145         { "Philips NTSC (FI1236,FM1236 and compatibles)", Philips, NTSC,
 146           16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732},
 147         { "Philips (SECAM+PAL_BG) (FI1216MF, FM1216MF, FR1216MF)", Philips, SECAM,
 148           16*168.25,16*447.25,0xA7,0x97,0x37,0x8e,623},
 149
 150         { "NoTuner", NoTuner, NOTUNER,
 151           0,0,0x00,0x00,0x00,0x00,0x00},
 152         { "Philips PAL_BG (FI1216 and compatibles)", Philips, PAL,
 153           16*168.25,16*447.25,0xA0,0x90,0x30,0x8e,623},
 154         { "Temic NTSC (4032 FY5)", TEMIC, NTSC,
 155           16*157.25,16*463.25,0x02,0x04,0x01,0x8e,732},
 156         { "Temic PAL_I (4062 FY5)", TEMIC, PAL_I,
 157           16*170.00,16*450.00,0x02,0x04,0x01,0x8e,623},
 158
 159         { "Temic NTSC (4036 FY5)", TEMIC, NTSC,
 160           16*157.25,16*463.25,0xa0,0x90,0x30,0x8e,732},
 161         { "Alps HSBH1", TEMIC, NTSC,
 162           16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
 163         { "Alps TSBE1",TEMIC,PAL,
 164           16*137.25,16*385.25,0x01,0x02,0x08,0x8e,732},
 165         { "Alps TSBB5", Alps, PAL_I, /* tested (UK UHF) with Modulartech MM205 */
 166           16*133.25,16*351.25,0x01,0x02,0x08,0x8e,632},
 167
 168         { "Alps TSBE5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
 169           16*133.25,16*351.25,0x01,0x02,0x08,0x8e,622},
 170         { "Alps TSBC5", Alps, PAL, /* untested - data sheet guess. Only IF differs. */
 171           16*133.25,16*351.25,0x01,0x02,0x08,0x8e,608},
 172         { "Temic PAL_BG (4006FH5)", TEMIC, PAL,
 173           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 174         { "Alps TSCH6",Alps,NTSC,
 175           16*137.25,16*385.25,0x14,0x12,0x11,0x8e,732},
 176
 177         { "Temic PAL_DK (4016 FY5)",TEMIC,PAL,
 178           16*168.25,16*456.25,0xa0,0x90,0x30,0x8e,623},
 179         { "Philips NTSC_M (MK2)",Philips,NTSC,
 180           16*160.00,16*454.00,0xa0,0x90,0x30,0x8e,732},
 181         { "Temic PAL_I (4066 FY5)", TEMIC, PAL_I,
 182           16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
 183         { "Temic PAL* auto (4006 FN5)", TEMIC, PAL,
 184           16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
 185
 186         { "Temic PAL_BG (4009 FR5) or PAL_I (4069 FR5)", TEMIC, PAL,
 187           16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
 188         { "Temic NTSC (4039 FR5)", TEMIC, NTSC,
 189           16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
 190         { "Temic PAL/SECAM multi (4046 FM5)", TEMIC, PAL,
 191           16*169.00, 16*454.00, 0xa0,0x90,0x30,0x8e,623},
 192         { "Philips PAL_DK (FI1256 and compatibles)", Philips, PAL,
 193           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 194
 195         { "Philips PAL/SECAM multi (FQ1216ME)", Philips, PAL,
 196           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 197         { "LG PAL_I+FM (TAPC-I001D)", LGINNOTEK, PAL_I,
 198           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 199         { "LG PAL_I (TAPC-I701D)", LGINNOTEK, PAL_I,
 200           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 201         { "LG NTSC+FM (TPI8NSR01F)", LGINNOTEK, NTSC,
 202           16*210.00,16*497.00,0xa0,0x90,0x30,0x8e,732},
 203
 204         { "LG PAL_BG+FM (TPI8PSB01D)", LGINNOTEK, PAL,
 205           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 206         { "LG PAL_BG (TPI8PSB11D)", LGINNOTEK, PAL,
 207           16*170.00,16*450.00,0xa0,0x90,0x30,0x8e,623},
 208         { "Temic PAL* auto + FM (4009 FN5)", TEMIC, PAL,
 209           16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
 210         { "SHARP NTSC_JP (2U5JF5540)", SHARP, NTSC, /* 940=16*58.75 NTSC@Japan */
 211           16*137.25,16*317.25,0x01,0x02,0x08,0x8e,732 }, // Corrected to NTSC=732 (was:940)
 212
 213         { "Samsung PAL TCPM9091PD27", Samsung, PAL,  /* from sourceforge v3tv */
 214           16*169,16*464,0xA0,0x90,0x30,0x8e,623},
 215         { "MT20xx universal", Microtune,PAL|NTSC,
 216                0,0,0,0,0,0,0},
 217         { "Temic PAL_BG (4106 FH5)", TEMIC, PAL,
 218           16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623},
 219         { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL,
 220           16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623},
 221
 222         { "Temic NTSC (4136 FY5)", TEMIC, NTSC,
 223           16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732},
 224         { "LG PAL (newer TAPC series)", LGINNOTEK, PAL,
 225           16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623},
 226         { "Philips PAL/SECAM multi (FM1216ME MK3)", Philips, PAL,
 227           16*160.00,16*442.00,0x01,0x02,0x04,0x8e,623 },
 228         { "LG NTSC (newer TAPC series)", LGINNOTEK, NTSC,
 229           16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,732},
 230
 231         { "HITACHI V7-J180AT", HITACHI, NTSC,
 232           16*170.00, 16*450.00, 0x01,0x02,0x00,0x8e,940 },
 233         { "Philips PAL_MK (FI1216 MK)", Philips, PAL,
 234           16*140.25,16*463.25,0x01,0xc2,0xcf,0x8e,623},
 235         { "Philips 1236D ATSC/NTSC daul in",Philips,ATSC,
 236           16*157.25,16*454.00,0xa0,0x90,0x30,0x8e,732},
 237         { "Philips NTSC MK3 (FM1236MK3 or FM1236/F)", Philips, NTSC,
 238           16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
 239
 240         { "Philips 4 in 1 (ATI TV Wonder Pro/Conexant)", Philips, NTSC,
 241           16*160.00,16*442.00,0x01,0x02,0x04,0x8e,732},
 242         { "Microtune 4049 FM5",Microtune,PAL,
 243           16*141.00,16*464.00,0xa0,0x90,0x30,0x8e,623},
 244
 245 };
 246 #define TUNERS ARRAY_SIZE(tuners)
 247
 248 /* ---------------------------------------------------------------------- */
 249
 250 static int tuner_getstatus(struct i2c_client *c)
 251 {
 252         unsigned char byte;
 253
 254         struct tuner *t = i2c_get_clientdata(c);
 255
 256         if (t->type == TUNER_MT2032)
 257                 return 0;
 258
 259         if (1 != i2c_master_recv(c,&byte,1))
 260                 return 0;
 261         return byte;
 262 }
 263
 264 #define TUNER_POR       0x80
 265 #define TUNER_FL        0x40
 266 #define TUNER_MODE      0x38
 267 #define TUNER_AFC       0x07
 268
 269 #define TUNER_STEREO    0x10 /* radio mode */
 270 #define TUNER_SIGNAL    0x07 /* radio mode */
 271
 272 static int tuner_signal(struct i2c_client *c)
 273 {
 274         return (tuner_getstatus(c) & TUNER_SIGNAL)<<13;
 275 }
 276
 277 static int tuner_stereo(struct i2c_client *c)
 278 {
 279         return (tuner_getstatus (c) & TUNER_STEREO);
 280 }
 281
 282 #if 0 /* unused */
 283 static int tuner_islocked (struct i2c_client *c)
 284 {
 285         return (tuner_getstatus (c) & TUNER_FL);
 286 }
 287
 288 static int tuner_afcstatus (struct i2c_client *c)
 289 {
 290         return (tuner_getstatus (c) & TUNER_AFC) - 2;
 291 }
 292
 293 static int tuner_mode (struct i2c_client *c)
 294 {
 295         return (tuner_getstatus (c) & TUNER_MODE) >> 3;
 296 }
 297 #endif
 298
 299 /* ---------------------------------------------------------------------- */
 300
 301 #define MT2032 0x04
 302 #define MT2030 0x06
 303 #define MT2040 0x07
 304 #define MT2050 0x42
 305
 306 static char *microtune_part[] = {
 307         [ MT2030 ] = "MT2030",
 308         [ MT2032 ] = "MT2032",
 309         [ MT2040 ] = "MT2040",
 310         [ MT2050 ] = "MT2050",
 311 };
 312
 313 // IsSpurInBand()?
 314 static int mt2032_spurcheck(int f1, int f2, int spectrum_from,int spectrum_to)
 315 {
 316         int n1=1,n2,f;
 317
 318         f1=f1/1000; //scale to kHz to avoid 32bit overflows
 319         f2=f2/1000;
 320         spectrum_from/=1000;
 321         spectrum_to/=1000;
 322
 323         dprintk("spurcheck f1=%d f2=%d  from=%d to=%d\n",f1,f2,spectrum_from,spectrum_to);
 324
 325         do {
 326             n2=-n1;
 327             f=n1*(f1-f2);
 328             do {
 329                 n2--;
 330                 f=f-f2;
 331                 dprintk(" spurtest n1=%d n2=%d ftest=%d\n",n1,n2,f);
 332
 333                 if( (f>spectrum_from) && (f<spectrum_to))
 334                         printk("mt2032 spurcheck triggered: %d\n",n1);
 335             } while ( (f>(f2-spectrum_to)) || (n2>-5));
 336             n1++;
 337         } while (n1<5);
 338
 339         return 1;
 340 }
 341
 342 static int mt2032_compute_freq(unsigned int rfin,
 343                                unsigned int if1, unsigned int if2,
 344                                unsigned int spectrum_from,
 345                                unsigned int spectrum_to,
 346                                unsigned char *buf,
 347                                int *ret_sel,
 348                                unsigned int xogc) //all in Hz
 349 {
 350         unsigned int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1,
 351                 desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq;
 352
 353         fref= 5250 *1000; //5.25MHz
 354         desired_lo1=rfin+if1;
 355
 356         lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000);
 357         lo1n=lo1/8;
 358         lo1a=lo1-(lo1n*8);
 359
 360         s=rfin/1000/1000+1090;
 361
 362         if(optimize_vco) {
 363                 if(s>1890) sel=0;
 364                 else if(s>1720) sel=1;
 365                 else if(s>1530) sel=2;
 366                 else if(s>1370) sel=3;
 367                 else sel=4; // >1090
 368         }
 369         else {
 370                 if(s>1790) sel=0; // <1958
 371                 else if(s>1617) sel=1;
 372                 else if(s>1449) sel=2;
 373                 else if(s>1291) sel=3;
 374                 else sel=4; // >1090
 375         }
 376         *ret_sel=sel;
 377
 378         lo1freq=(lo1a+8*lo1n)*fref;
 379
 380         dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n",
 381                 rfin,lo1,lo1n,lo1a,sel,lo1freq);
 382
 383         desired_lo2=lo1freq-rfin-if2;
 384         lo2=(desired_lo2)/fref;
 385         lo2n=lo2/8;
 386         lo2a=lo2-(lo2n*8);
 387         lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith
 388         lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000;
 389
 390         dprintk("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n",
 391                 rfin,lo2,lo2n,lo2a,lo2num,lo2freq);
 392
 393         if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) {
 394                 printk("mt2032: frequency parameters out of range: %d %d %d %d\n",
 395                        lo1a, lo1n, lo2a,lo2n);
 396                 return(-1);
 397         }
 398
 399         mt2032_spurcheck(lo1freq, desired_lo2,  spectrum_from, spectrum_to);
 400         // should recalculate lo1 (one step up/down)
 401
 402         // set up MT2032 register map for transfer over i2c
 403         buf[0]=lo1n-1;
 404         buf[1]=lo1a | (sel<<4);
 405         buf[2]=0x86; // LOGC
 406         buf[3]=0x0f; //reserved
 407         buf[4]=0x1f;
 408         buf[5]=(lo2n-1) | (lo2a<<5);
 409         if(rfin >400*1000*1000)
 410                 buf[6]=0xe4;
 411         else
 412                 buf[6]=0xf4; // set PKEN per rev 1.2
 413         buf[7]=8+xogc;
 414         buf[8]=0xc3; //reserved
 415         buf[9]=0x4e; //reserved
 416         buf[10]=0xec; //reserved
 417         buf[11]=(lo2num&0xff);
 418         buf[12]=(lo2num>>8) |0x80; // Lo2RST
 419
 420         return 0;
 421 }
 422
 423 static int mt2032_check_lo_lock(struct i2c_client *c)
 424 {
 425         int try,lock=0;
 426         unsigned char buf[2];
 427         for(try=0;try<10;try++) {
 428                 buf[0]=0x0e;
 429                 i2c_master_send(c,buf,1);
 430                 i2c_master_recv(c,buf,1);
 431                 dprintk("mt2032 Reg.E=0x%02x\n",buf[0]);
 432                 lock=buf[0] &0x06;
 433
 434                 if (lock==6)
 435                         break;
 436
 437                 dprintk("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]);
 438                 udelay(1000);
 439         }
 440         return lock;
 441 }
 442
 443 static int mt2032_optimize_vco(struct i2c_client *c,int sel,int lock)
 444 {
 445         unsigned char buf[2];
 446         int tad1;
 447
 448         buf[0]=0x0f;
 449         i2c_master_send(c,buf,1);
 450         i2c_master_recv(c,buf,1);
 451         dprintk("mt2032 Reg.F=0x%02x\n",buf[0]);
 452         tad1=buf[0]&0x07;
 453
 454         if(tad1 ==0) return lock;
 455         if(tad1 ==1) return lock;
 456
 457         if(tad1==2) {
 458                 if(sel==0)
 459                         return lock;
 460                 else sel--;
 461         }
 462         else {
 463                 if(sel<4)
 464                         sel++;
 465                 else
 466                         return lock;
 467         }
 468
 469         dprintk("mt2032 optimize_vco: sel=%d\n",sel);
 470
 471         buf[0]=0x0f;
 472         buf[1]=sel;
 473         i2c_master_send(c,buf,2);
 474         lock=mt2032_check_lo_lock(c);
 475         return lock;
 476 }
 477
 478
 479 static void mt2032_set_if_freq(struct i2c_client *c, unsigned int rfin,
 480                                unsigned int if1, unsigned int if2,
 481                                unsigned int from, unsigned int to)
 482 {
 483         unsigned char buf[21];
 484         int lint_try,ret,sel,lock=0;
 485         struct tuner *t = i2c_get_clientdata(c);
 486
 487         dprintk("mt2032_set_if_freq rfin=%d if1=%d if2=%d from=%d to=%d\n",rfin,if1,if2,from,to);
 488
 489         buf[0]=0;
 490         ret=i2c_master_send(c,buf,1);
 491         i2c_master_recv(c,buf,21);
 492
 493         buf[0]=0;
 494         ret=mt2032_compute_freq(rfin,if1,if2,from,to,&buf[1],&sel,t->xogc);
 495         if (ret<0)
 496                 return;
 497
 498         // send only the relevant registers per Rev. 1.2
 499         buf[0]=0;
 500         ret=i2c_master_send(c,buf,4);
 501         buf[5]=5;
 502         ret=i2c_master_send(c,buf+5,4);
 503         buf[11]=11;
 504         ret=i2c_master_send(c,buf+11,3);
 505         if(ret!=3)
 506                 printk("mt2032_set_if_freq failed with %d\n",ret);
 507
 508         // wait for PLLs to lock (per manual), retry LINT if not.
 509         for(lint_try=0; lint_try<2; lint_try++) {
 510                 lock=mt2032_check_lo_lock(c);
 511
 512                 if(optimize_vco)
 513                         lock=mt2032_optimize_vco(c,sel,lock);
 514                 if(lock==6) break;
 515
 516                 printk("mt2032: re-init PLLs by LINT\n");
 517                 buf[0]=7;
 518                 buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs
 519                 i2c_master_send(c,buf,2);
 520                 mdelay(10);
 521                 buf[1]=8+t->xogc;
 522                 i2c_master_send(c,buf,2);
 523         }
 524
 525         if (lock!=6)
 526                 printk("MT2032 Fatal Error: PLLs didn't lock.\n");
 527
 528         buf[0]=2;
 529         buf[1]=0x20; // LOGC for optimal phase noise
 530         ret=i2c_master_send(c,buf,2);
 531         if (ret!=2)
 532                 printk("mt2032_set_if_freq2 failed with %d\n",ret);
 533 }
 534
 535
 536 static void mt2032_set_tv_freq(struct i2c_client *c, unsigned int freq)
 537 {
 538         struct tuner *t = i2c_get_clientdata(c);
 539         int if2,from,to;
 540
 541         // signal bandwidth and picture carrier
 542         if (t->std & V4L2_STD_525_60) {
 543                 // NTSC
 544                 from = 40750*1000;
 545                 to   = 46750*1000;
 546                 if2  = 45750*1000;
 547         } else {
 548                 // PAL
 549                 from = 32900*1000;
 550                 to   = 39900*1000;
 551                 if2  = 38900*1000;
 552         }
 553
 554         mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
 555                            1090*1000*1000, if2, from, to);
 556 }
 557
 558 static void mt2032_set_radio_freq(struct i2c_client *c, unsigned int freq)
 559 {
 560         struct tuner *t = i2c_get_clientdata(c);
 561         int if2 = t->radio_if2;
 562
 563         // per Manual for FM tuning: first if center freq. 1085 MHz
 564         mt2032_set_if_freq(c, freq*62500 /* freq*1000*1000/16 */,
 565                            1085*1000*1000,if2,if2,if2);
 566 }
 567
 568 // Initalization as described in "MT203x Programming Procedures", Rev 1.2, Feb.2001
 569 static int mt2032_init(struct i2c_client *c)
 570 {
 571         struct tuner *t = i2c_get_clientdata(c);
 572         unsigned char buf[21];
 573         int ret,xogc,xok=0;
 574
 575         // Initialize Registers per spec.
 576         buf[1]=2; // Index to register 2
 577         buf[2]=0xff;
 578         buf[3]=0x0f;
 579         buf[4]=0x1f;
 580         ret=i2c_master_send(c,buf+1,4);
 581
 582         buf[5]=6; // Index register 6
 583         buf[6]=0xe4;
 584         buf[7]=0x8f;
 585         buf[8]=0xc3;
 586         buf[9]=0x4e;
 587         buf[10]=0xec;
 588         ret=i2c_master_send(c,buf+5,6);
 589
 590         buf[12]=13;  // Index register 13
 591         buf[13]=0x32;
 592         ret=i2c_master_send(c,buf+12,2);
 593
 594         // Adjust XOGC (register 7), wait for XOK
 595         xogc=7;
 596         do {
 597                 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
 598                 mdelay(10);
 599                 buf[0]=0x0e;
 600                 i2c_master_send(c,buf,1);
 601                 i2c_master_recv(c,buf,1);
 602                 xok=buf[0]&0x01;
 603                 dprintk("mt2032: xok = 0x%02x\n",xok);
 604                 if (xok == 1) break;
 605
 606                 xogc--;
 607                 dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07);
 608                 if (xogc == 3) {
 609                         xogc=4; // min. 4 per spec
 610                         break;
 611                 }
 612                 buf[0]=0x07;
 613                 buf[1]=0x88 + xogc;
 614                 ret=i2c_master_send(c,buf,2);
 615                 if (ret!=2)
 616                         printk("mt2032_init failed with %d\n",ret);
 617         } while (xok != 1 );
 618         t->xogc=xogc;
 619
 620         t->tv_freq    = mt2032_set_tv_freq;
 621         t->radio_freq = mt2032_set_radio_freq;
 622         return(1);
 623 }
 624
 625 static void mt2050_set_antenna(struct i2c_client *c, unsigned char antenna)
 626 {
 627        unsigned char buf[2];
 628        int ret;
 629
 630        buf[0] = 6;
 631        buf[1] = antenna ? 0x11 : 0x10;
 632        ret=i2c_master_send(c,buf,2);
 633        dprintk("mt2050: enabled antenna connector %d\n", antenna);
 634 }
 635
 636 static void mt2050_set_if_freq(struct i2c_client *c,unsigned int freq, unsigned int if2)
 637 {
 638         unsigned int if1=1218*1000*1000;
 639         unsigned int f_lo1,f_lo2,lo1,lo2,f_lo1_modulo,f_lo2_modulo,num1,num2,div1a,div1b,div2a,div2b;
 640         int ret;
 641         unsigned char buf[6];
 642
 643         dprintk("mt2050_set_if_freq freq=%d\n",freq);
 644
 645         f_lo1=freq+if1;
 646         f_lo1=(f_lo1/1000000)*1000000;
 647
 648         f_lo2=f_lo1-freq-if2;
 649         f_lo2=(f_lo2/50000)*50000;
 650
 651         lo1=f_lo1/4000000;
 652         lo2=f_lo2/4000000;
 653
 654         f_lo1_modulo= f_lo1-(lo1*4000000);
 655         f_lo2_modulo= f_lo2-(lo2*4000000);
 656
 657         num1=4*f_lo1_modulo/4000000;
 658         num2=4096*(f_lo2_modulo/1000)/4000;
 659
 660         // todo spurchecks
 661
 662         div1a=(lo1/12)-1;
 663         div1b=lo1-(div1a+1)*12;
 664
 665         div2a=(lo2/8)-1;
 666         div2b=lo2-(div2a+1)*8;
 667
 668         dprintk("lo1 lo2 = %d %d\n", lo1, lo2);
 669         dprintk("num1 num2 div1a div1b div2a div2b= %x %x %x %x %x %x\n",num1,num2,div1a,div1b,div2a,div2b);
 670
 671
 672         buf[0]=1;
 673         buf[1]= 4*div1b + num1;
 674         if(freq<275*1000*1000) buf[1] = buf[1]|0x80;
 675
 676         buf[2]=div1a;
 677         buf[3]=32*div2b + num2/256;
 678         buf[4]=num2-(num2/256)*256;
 679         buf[5]=div2a;
 680         if(num2!=0) buf[5]=buf[5]|0x40;
 681
 682         if(debug) {
 683                 int i;
 684                 printk("bufs is: ");
 685                 for(i=0;i<6;i++)
 686                         printk("%x ",buf[i]);
 687                 printk("\n");
 688         }
 689
 690         ret=i2c_master_send(c,buf,6);
 691         if (ret!=6)
 692                 printk("mt2050_set_if_freq failed with %d\n",ret);
 693 }
 694
 695 static void mt2050_set_tv_freq(struct i2c_client *c, unsigned int freq)
 696 {
 697         struct tuner *t = i2c_get_clientdata(c);
 698         unsigned int if2;
 699
 700         if (t->std & V4L2_STD_525_60) {
 701                 // NTSC
 702                 if2 = 45750*1000;
 703         } else {
 704                 // PAL
 705                 if2 = 38900*1000;
 706         }
 707         mt2050_set_if_freq(c, freq*62500, if2);
 708         mt2050_set_antenna(c, tv_antenna);
 709 }
 710
 711 static void mt2050_set_radio_freq(struct i2c_client *c, unsigned int freq)
 712 {
 713         struct tuner *t = i2c_get_clientdata(c);
 714         int if2 = t->radio_if2;
 715
 716         mt2050_set_if_freq(c, freq*62500, if2);
 717         mt2050_set_antenna(c, radio_antenna);
 718 }
 719
 720 static int mt2050_init(struct i2c_client *c)
 721 {
 722         struct tuner *t = i2c_get_clientdata(c);
 723         unsigned char buf[2];
 724         int ret;
 725
 726         buf[0]=6;
 727         buf[1]=0x10;
 728         ret=i2c_master_send(c,buf,2); //  power
 729
 730         buf[0]=0x0f;
 731         buf[1]=0x0f;
 732         ret=i2c_master_send(c,buf,2); // m1lo
 733
 734         buf[0]=0x0d;
 735         ret=i2c_master_send(c,buf,1);
 736         i2c_master_recv(c,buf,1);
 737
 738         dprintk("mt2050: sro is %x\n",buf[0]);
 739         t->tv_freq    = mt2050_set_tv_freq;
 740         t->radio_freq = mt2050_set_radio_freq;
 741         return 0;
 742 }
 743
 744 static int microtune_init(struct i2c_client *c)
 745 {
 746         struct tuner *t = i2c_get_clientdata(c);
 747         char *name;
 748         unsigned char buf[21];
 749         int company_code;
 750
 751         memset(buf,0,sizeof(buf));
 752         t->tv_freq    = NULL;
 753         t->radio_freq = NULL;
 754         name = "unknown";
 755
 756         i2c_master_send(c,buf,1);
 757         i2c_master_recv(c,buf,21);
 758         if(debug) {
 759                 int i;
 760                 printk(KERN_DEBUG "tuner: MT2032 hexdump:\n");
 761                 for(i=0;i<21;i++) {
 762                         printk(" %02x",buf[i]);
 763                         if(((i+1)%8)==0) printk(" ");
 764                         if(((i+1)%16)==0) printk("\n ");
 765                 }
 766                 printk("\n ");
 767         }
 768         company_code = buf[0x11] << 8 | buf[0x12];
 769         printk("tuner: microtune: companycode=%04x part=%02x rev=%02x\n",
 770                company_code,buf[0x13],buf[0x14]);
 771
 772 #if 0
 773         /* seems to cause more problems than it solves ... */
 774         switch (company_code) {
 775         case 0x30bf:
 776         case 0x3cbf:
 777         case 0x3dbf:
 778         case 0x4d54:
 779         case 0x8e81:
 780         case 0x8e91:
 781                 /* ok (?) */
 782                 break;
 783         default:
 784                 printk("tuner: microtune: unknown companycode\n");
 785                 return 0;
 786         }
 787 #endif
 788
 789         if (buf[0x13] < ARRAY_SIZE(microtune_part) &&
 790             NULL != microtune_part[buf[0x13]])
 791                 name = microtune_part[buf[0x13]];
 792         switch (buf[0x13]) {
 793         case MT2032:
 794                 mt2032_init(c);
 795                 break;
 796         case MT2050:
 797                 mt2050_init(c);
 798                 break;
 799         default:
 800                 printk("tuner: microtune %s found, not (yet?) supported, sorry :-/\n",
 801                        name);
 802                 return 0;
 803         }
 804         printk("tuner: microtune %s found, OK\n",name);
 805         return 0;
 806 }
 807
 808 /* ---------------------------------------------------------------------- */
 809
 810 static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
 811 {
 812         struct tuner *t = i2c_get_clientdata(c);
 813         u8 config;
 814         u16 div;
 815         struct tunertype *tun;
 816         unsigned char buffer[4];
 817         int rc;
 818
 819         tun=&tuners[t->type];
 820         if (freq < tun->thresh1)
 821                 config = tun->VHF_L;
 822         else if (freq < tun->thresh2)
 823                 config = tun->VHF_H;
 824         else
 825                 config = tun->UHF;
 826
 827
 828         /* tv norm specific stuff for multi-norm tuners */
 829         switch (t->type) {
 830         case TUNER_PHILIPS_SECAM: // FI1216MF
 831                 /* 0x01 -> ??? no change ??? */
 832                 /* 0x02 -> PAL BDGHI / SECAM L */
 833                 /* 0x04 -> ??? PAL others / SECAM others ??? */
 834                 config &= ~0x02;
 835                 if (t->std & V4L2_STD_SECAM)
 836                         config |= 0x02;
 837                 break;
 838
 839         case TUNER_TEMIC_4046FM5:
 840                 config &= ~0x0f;
 841
 842                 if (t->std & V4L2_STD_PAL_BG) {
 843                         config |= TEMIC_SET_PAL_BG;
 844
 845                 } else if (t->std & V4L2_STD_PAL_I) {
 846                         config |= TEMIC_SET_PAL_I;
 847
 848                 } else if (t->std & V4L2_STD_PAL_DK) {
 849                         config |= TEMIC_SET_PAL_DK;
 850
 851                 } else if (t->std & V4L2_STD_SECAM_L) {
 852                         config |= TEMIC_SET_PAL_L;
 853
 854                 }
 855                 break;
 856
 857         case TUNER_PHILIPS_FQ1216ME:
 858                 config &= ~0x0f;
 859
 860                 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
 861                         config |= PHILIPS_SET_PAL_BGDK;
 862
 863                 } else if (t->std & V4L2_STD_PAL_I) {
 864                         config |= PHILIPS_SET_PAL_I;
 865
 866                 } else if (t->std & V4L2_STD_SECAM_L) {
 867                         config |= PHILIPS_SET_PAL_L;
 868
 869                 }
 870                 break;
 871
 872         case TUNER_PHILIPS_ATSC:
 873                 /* 0x00 -> ATSC antenna input 1 */
 874                 /* 0x01 -> ATSC antenna input 2 */
 875                 /* 0x02 -> NTSC antenna input 1 */
 876                 /* 0x03 -> NTSC antenna input 2 */
 877                 config &= ~0x03;
 878                 if (t->std & V4L2_STD_ATSC)
 879                         config |= 2;
 880                 /* FIXME: input */
 881                 break;
 882         }
 883
 884
 885         /*
 886          * Philips FI1216MK2 remark from specification :
 887          * for channel selection involving band switching, and to ensure
 888          * smooth tuning to the desired channel without causing
 889          * unnecessary charge pump action, it is recommended to consider
 890          * the difference between wanted channel frequency and the
 891          * current channel frequency.  Unnecessary charge pump action
 892          * will result in very low tuning voltage which may drive the
 893          * oscillator to extreme conditions.
 894          *
 895          * Progfou: specification says to send config data before
 896          * frequency in case (wanted frequency < current frequency).
 897          */
 898
 899         div=freq + tun->IFPCoff;
 900         if (t->type == TUNER_PHILIPS_SECAM && freq < t->freq) {
 901                 buffer[0] = tun->config;
 902                 buffer[1] = config;
 903                 buffer[2] = (div>>8) & 0x7f;
 904                 buffer[3] = div      & 0xff;
 905         } else {
 906                 buffer[0] = (div>>8) & 0x7f;
 907                 buffer[1] = div      & 0xff;
 908                 buffer[2] = tun->config;
 909                 buffer[3] = config;
 910         }
 911         dprintk("tuner: tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
 912                 buffer[0],buffer[1],buffer[2],buffer[3]);
 913
 914         if (4 != (rc = i2c_master_send(c,buffer,4)))
 915                 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
 916
 917 }
 918
 919 static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
 920 {
 921         struct tunertype *tun;
 922         struct tuner *t = i2c_get_clientdata(c);
 923         unsigned char buffer[4];
 924         unsigned div;
 925         int rc;
 926
 927         tun=&tuners[t->type];
 928         div = freq + (int)(16*10.7);
 929         buffer[0] = (div>>8) & 0x7f;
 930         buffer[1] = div      & 0xff;
 931         buffer[2] = tun->config;
 932         switch (t->type) {
 933         case TUNER_PHILIPS_FM1216ME_MK3:
 934         case TUNER_PHILIPS_FM1236_MK3:
 935                 buffer[3] = 0x19;
 936                 break;
 937         default:
 938                 buffer[3] = 0xa4;
 939                 break;
 940         }
 941
 942         dprintk("tuner: radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
 943                 buffer[0],buffer[1],buffer[2],buffer[3]);
 944
 945         if (4 != (rc = i2c_master_send(c,buffer,4)))
 946                 printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc);
 947 }
 948
 949 /* ---------------------------------------------------------------------- */
 950
 951 // Set tuner frequency,  freq in Units of 62.5kHz = 1/16MHz
 952 static void set_tv_freq(struct i2c_client *c, unsigned int freq)
 953 {
 954         struct tuner *t = i2c_get_clientdata(c);
 955
 956         if (t->type == UNSET) {
 957                 printk("tuner: tuner type not set\n");
 958                 return;
 959         }
 960         if (NULL == t->tv_freq) {
 961                 printk("tuner: Huh? tv_set is NULL?\n");
 962                 return;
 963         }
 964         if (freq < tv_range[0]*16 || freq > tv_range[1]*16) {
 965                 /* FIXME: better do that chip-specific, but
 966                    right now we don't have that in the config
 967                    struct and this way is still better than no
 968                    check at all */
 969                 printk("tuner: TV freq (%d.%02d) out of range (%d-%d)\n",
 970                        freq/16,freq%16*100/16,tv_range[0],tv_range[1]);
 971                 return;
 972         }
 973         t->tv_freq(c,freq);
 974 }
 975
 976 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
 977 {
 978         struct tuner *t = i2c_get_clientdata(c);
 979
 980         if (t->type == UNSET) {
 981                 printk("tuner: tuner type not set\n");
 982                 return;
 983         }
 984         if (NULL == t->radio_freq) {
 985                 printk("tuner: no radio tuning for this one, sorry.\n");
 986                 return;
 987         }
 988         if (freq < radio_range[0]*16 || freq > radio_range[1]*16) {
 989                 printk("tuner: radio freq (%d.%02d) out of range (%d-%d)\n",
 990                        freq/16,freq%16*100/16,
 991                        radio_range[0],radio_range[1]);
 992                 return;
 993         }
 994         t->radio_freq(c,freq);
 995 }
 996
 997 static void set_freq(struct i2c_client *c, unsigned long freq)
 998 {
 999         struct tuner *t = i2c_get_clientdata(c);
1000
1001         if (t->radio) {
1002                 dprintk("tuner: radio freq set to %lu.%02lu\n",
1003                         freq/16,freq%16*100/16);
1004                 set_radio_freq(c,freq);
1005         } else {
1006                 dprintk("tuner: tv freq set to %lu.%02lu\n",
1007                         freq/16,freq%16*100/16);
1008                 set_tv_freq(c, freq);
1009         }
1010         t->freq = freq;
1011 }
1012
1013 static void set_type(struct i2c_client *c, unsigned int type, char *source)
1014 {
1015         struct tuner *t = i2c_get_clientdata(c);
1016
1017         if (t->type != UNSET) {
1018                 if (t->type != type)
1019                         printk("tuner: type already set to %d, "
1020                                "ignoring request for %d\n", t->type, type);
1021                 return;
1022         }
1023         if (type >= TUNERS)
1024                 return;
1025
1026         t->type = type;
1027         printk("tuner: type set to %d (%s) by %s\n",
1028                t->type,tuners[t->type].name, source);
1029         strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
1030
1031         switch (t->type) {
1032         case TUNER_MT2032:
1033                 microtune_init(c);
1034                 break;
1035         default:
1036                 t->tv_freq    = default_set_tv_freq;
1037                 t->radio_freq = default_set_radio_freq;
1038                 break;
1039         }
1040 }
1041
1042 static char *pal = "-";
1043 MODULE_PARM(pal,"s");
1044
1045 static int tuner_fixup_std(struct tuner *t)
1046 {
1047         if ((t->std & V4L2_STD_PAL) == V4L2_STD_PAL) {
1048                 /* get more precise norm info from insmod option */
1049                 switch (pal[0]) {
1050                 case 'b':
1051                 case 'B':
1052                 case 'g':
1053                 case 'G':
1054                         dprintk("insmod fixup: PAL => PAL-BG\n");
1055                         t->std = V4L2_STD_PAL_BG;
1056                         break;
1057                 case 'i':
1058                 case 'I':
1059                         dprintk("insmod fixup: PAL => PAL-I\n");
1060                         t->std = V4L2_STD_PAL_I;
1061                         break;
1062                 case 'd':
1063                 case 'D':
1064                 case 'k':
1065                 case 'K':
1066                         dprintk("insmod fixup: PAL => PAL-DK\n");
1067                         t->std = V4L2_STD_PAL_DK;
1068                         break;
1069                 }
1070         }
1071         return 0;
1072 }
1073
1074 /* ---------------------------------------------------------------------- */
1075
1076 static int tuner_attach(struct i2c_adapter *adap, int addr, int kind)
1077 {
1078         struct tuner *t;
1079         struct i2c_client *client;
1080
1081         if (this_adap > 0)
1082                 return -1;
1083         this_adap++;
1084
1085         client_template.adapter = adap;
1086         client_template.addr = addr;
1087
1088         printk("tuner: chip found at addr 0x%x i2c-bus %s\n",
1089                addr<<1, adap->name);
1090
1091         if (NULL == (client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL)))
1092                 return -ENOMEM;
1093         memcpy(client,&client_template,sizeof(struct i2c_client));
1094         t = kmalloc(sizeof(struct tuner),GFP_KERNEL);
1095         if (NULL == t) {
1096                 kfree(client);
1097                 return -ENOMEM;
1098         }
1099         memset(t,0,sizeof(struct tuner));
1100         i2c_set_clientdata(client, t);
1101         t->type       = UNSET;
1102         t->radio_if2  = 10700*1000; // 10.7MHz - FM radio
1103
1104         i2c_attach_client(client);
1105         if (type < TUNERS) {
1106                 set_type(client, type, "insmod option");
1107                 printk("tuner: The type=<n> insmod option will go away soon.\n");
1108                 printk("tuner: Please use the tuner=<n> option provided by\n");
1109                 printk("tuner: tv aard core driver (bttv, saa7134, ...) instead.\n");
1110         }
1111         return 0;
1112 }
1113
1114 static int tuner_probe(struct i2c_adapter *adap)
1115 {
1116         if (0 != addr) {
1117                 normal_i2c_range[0] = addr;
1118                 normal_i2c_range[1] = addr;
1119         }
1120         this_adap = 0;
1121
1122 #ifdef I2C_CLASS_TV_ANALOG
1123         if (adap->class & I2C_CLASS_TV_ANALOG)
1124                 return i2c_probe(adap, &addr_data, tuner_attach);
1125 #else
1126         switch (adap->id) {
1127         case I2C_ALGO_BIT | I2C_HW_SMBUS_VOODOO3:
1128         case I2C_ALGO_BIT | I2C_HW_B_BT848:
1129         case I2C_ALGO_BIT | I2C_HW_B_RIVA:
1130         case I2C_ALGO_SAA7134:
1131         case I2C_ALGO_SAA7146:
1132                 return i2c_probe(adap, &addr_data, tuner_attach);
1133                 break;
1134         }
1135 #endif
1136         return 0;
1137 }
1138
1139 static int tuner_detach(struct i2c_client *client)
1140 {
1141         struct tuner *t = i2c_get_clientdata(client);
1142
1143         i2c_detach_client(client);
1144         kfree(t);
1145         kfree(client);
1146         return 0;
1147 }
1148
1149 #define SWITCH_V4L2     if (!t->using_v4l2 && debug) \
1150                           printk("tuner: switching to v4l2\n"); \
1151                           t->using_v4l2 = 1;
1152 #define CHECK_V4L2      if (t->using_v4l2) { if (debug) \
1153                           printk("tuner: ignore v4l1 call\n"); \
1154                           return 0; }
1155
1156 static int
1157 tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
1158 {
1159         struct tuner *t = i2c_get_clientdata(client);
1160         unsigned int *iarg = (int*)arg;
1161
1162         switch (cmd) {
1163
1164         /* --- configuration --- */
1165         case TUNER_SET_TYPE:
1166                 set_type(client,*iarg,client->adapter->name);
1167                 break;
1168         case AUDC_SET_RADIO:
1169                 if (!t->radio) {
1170                         set_tv_freq(client,400 * 16);
1171                         t->radio = 1;
1172                 }
1173                 break;
1174         case AUDC_CONFIG_PINNACLE:
1175                 switch (*iarg) {
1176                 case 2:
1177                         dprintk("tuner: pinnacle pal\n");
1178                         t->radio_if2 = 33300 * 1000;
1179                         break;
1180                 case 3:
1181                         dprintk("tuner: pinnacle ntsc\n");
1182                         t->radio_if2 = 41300 * 1000;
1183                         break;
1184                 }
1185                 break;
1186
1187         /* --- v4l ioctls --- */
1188         /* take care: bttv does userspace copying, we'll get a
1189            kernel pointer here... */
1190         case VIDIOCSCHAN:
1191         {
1192                 static const v4l2_std_id map[] = {
1193                         [ VIDEO_MODE_PAL   ] = V4L2_STD_PAL,
1194                         [ VIDEO_MODE_NTSC  ] = V4L2_STD_NTSC_M,
1195                         [ VIDEO_MODE_SECAM ] = V4L2_STD_SECAM,
1196                         [ 4 /* bttv */     ] = V4L2_STD_PAL_M,
1197                         [ 5 /* bttv */     ] = V4L2_STD_PAL_N,
1198                         [ 6 /* bttv */     ] = V4L2_STD_NTSC_M_JP,
1199                 };
1200                 struct video_channel *vc = arg;
1201
1202                 CHECK_V4L2;
1203                 t->radio = 0;
1204                 if (vc->norm < ARRAY_SIZE(map))
1205                         t->std = map[vc->norm];
1206                 tuner_fixup_std(t);
1207                 if (t->freq)
1208                         set_tv_freq(client,t->freq);
1209                 return 0;
1210         }
1211         case VIDIOCSFREQ:
1212         {
1213                 unsigned long *v = arg;
1214
1215                 CHECK_V4L2;
1216                 set_freq(client,*v);
1217                 return 0;
1218         }
1219         case VIDIOCGTUNER:
1220         {
1221                 struct video_tuner *vt = arg;
1222
1223                 CHECK_V4L2;
1224                 if (t->radio)
1225                         vt->signal = tuner_signal(client);
1226                 return 0;
1227         }
1228         case VIDIOCGAUDIO:
1229         {
1230                 struct video_audio *va = arg;
1231
1232                 CHECK_V4L2;
1233                 if (t->radio)
1234                         va->mode = (tuner_stereo(client) ? VIDEO_SOUND_STEREO : VIDEO_SOUND_MONO);
1235                 return 0;
1236         }
1237
1238         case VIDIOC_S_STD:
1239         {
1240                 v4l2_std_id *id = arg;
1241
1242                 SWITCH_V4L2;
1243                 t->radio = 0;
1244                 t->std = *id;
1245                 tuner_fixup_std(t);
1246                 if (t->freq)
1247                         set_freq(client,t->freq);
1248                 break;
1249         }
1250         case VIDIOC_S_FREQUENCY:
1251         {
1252                 struct v4l2_frequency *f = arg;
1253
1254                 SWITCH_V4L2;
1255                 if (V4L2_TUNER_ANALOG_TV == f->type) {
1256                         t->radio = 0;
1257                 }
1258                 if (V4L2_TUNER_RADIO == f->type) {
1259                         if (!t->radio) {
1260                                 set_tv_freq(client,400*16);
1261                                 t->radio = 1;
1262                         }
1263                 }
1264                 t->freq  = f->frequency;
1265                 set_freq(client,t->freq);
1266                 break;
1267         }
1268         case VIDIOC_G_TUNER:
1269         {
1270                 struct v4l2_tuner *tuner = arg;
1271
1272                 SWITCH_V4L2;
1273                 if (t->radio)
1274                         tuner->signal = tuner_signal(client);
1275                 break;
1276         }
1277         default:
1278                 /* nothing */
1279                 break;
1280         }
1281
1282         return 0;
1283 }
1284
1285 /* ----------------------------------------------------------------------- */
1286
1287 static struct i2c_driver driver = {
1288         .owner          = THIS_MODULE,
1289         .name           = "i2c TV tuner driver",
1290         .id             = I2C_DRIVERID_TUNER,
1291         .flags          = I2C_DF_NOTIFY,
1292         .attach_adapter = tuner_probe,
1293         .detach_client  = tuner_detach,
1294         .command        = tuner_command,
1295 };
1296 static struct i2c_client client_template =
1297 {
1298         I2C_DEVNAME("(tuner unset)"),
1299         .flags      = I2C_CLIENT_ALLOW_USE,
1300         .driver     = &driver,
1301 };
1302
1303 static int tuner_init_module(void)
1304 {
1305         i2c_add_driver(&driver);
1306         return 0;
1307 }
1308
1309 static void tuner_cleanup_module(void)
1310 {
1311         i2c_del_driver(&driver);
1312 }
1313
1314 module_init(tuner_init_module);
1315 module_exit(tuner_cleanup_module);
1316
1317 /*
1318  * Overrides for Emacs so that we follow Linus's tabbing style.
1319  * ---------------------------------------------------------------------------
1320  * Local variables:
1321  * c-basic-offset: 8
1322  * End:
1323  */