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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 | #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", */ #define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */ #define PHILIPS_MF_SET_PAL_L 0x03 #define PHILIPS_MF_SET_PAL_L2 0x02 /* ---------------------------------------------------------------------- */ 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", Philips, PAL_I, 16*140.25,16*463.25,0xa0,0x90,0x30,0x8e,623}, { "Philips NTSC", Philips, NTSC, 16*157.25,16*451.25,0xA0,0x90,0x30,0x8e,732}, { "Philips SECAM", 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", 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", 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,940}, { "Samsung PAL TCPM9091PD27", Samsung, PAL, /* from sourceforge v3tv */ 16*169,16*464,0xA0,0x90,0x30,0x8e,623}, { "MT2032 universal", Microtune,PAL|NTSC, 0,0,0,0,0,0,0}, { "Temic PAL_BG (4106 FH5)", TEMIC, PAL, 16*141.00, 16*464.00, 0xa0,0x90,0x30,0x8e,623}, { "Temic PAL_DK/SECAM_L (4012 FY5)", TEMIC, PAL, 16*140.25, 16*463.25, 0x02,0x04,0x01,0x8e,623}, { "Temic NTSC (4136 FY5)", TEMIC, NTSC, 16*158.00, 16*453.00, 0xa0,0x90,0x30,0x8e,732}, { "LG PAL (newer TAPC series)", LGINNOTEK, PAL, 16*170.00, 16*450.00, 0x01,0x02,0x08,0x8e,623}, }; #define TUNERS (sizeof(tuners)/sizeof(struct tunertype)) /* ---------------------------------------------------------------------- */ 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); } 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; } #if 0 /* unused */ 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=%02x\n", buf[0x11],buf[0x12],buf[0x13],buf[0x14]); if(debug) { int i; printk("MT2032 hexdump:\n"); for(i=0;i<21;i++) { printk(" %02x",buf[i]); if(((i+1)%8)==0) printk(" "); if(((i+1)%16)==0) printk("\n "); } printk("\n "); } // Initialize Registers per spec. buf[1]=2; // Index to register 2 buf[2]=0xff; buf[3]=0x0f; buf[4]=0x1f; ret=i2c_master_send(c,buf+1,4); buf[5]=6; // Index register 6 buf[6]=0xe4; buf[7]=0x8f; buf[8]=0xc3; buf[9]=0x4e; buf[10]=0xec; ret=i2c_master_send(c,buf+5,6); buf[12]=13; // Index register 13 buf[13]=0x32; ret=i2c_master_send(c,buf+12,2); // Adjust XOGC (register 7), wait for XOK xogc=7; do { dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07); mdelay(10); buf[0]=0x0e; i2c_master_send(c,buf,1); i2c_master_recv(c,buf,1); xok=buf[0]&0x01; dprintk("mt2032: xok = 0x%02x\n",xok); if (xok == 1) break; xogc--; dprintk("mt2032: xogc = 0x%02x\n",xogc&0x07); if (xogc == 3) { xogc=4; // min. 4 per spec break; } buf[0]=0x07; buf[1]=0x88 + xogc; ret=i2c_master_send(c,buf,2); if (ret!=2) printk("mt2032_init failed with %d\n",ret); } while (xok != 1 ); t->xogc=xogc; return(1); } // IsSpurInBand()? 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(int rfin, int if1, int if2, int spectrum_from, int spectrum_to, unsigned char *buf, int *ret_sel, int xogc) //all in Hz { int fref,lo1,lo1n,lo1a,s,sel,lo1freq, desired_lo1, desired_lo2,lo2,lo2n,lo2a,lo2num,lo2freq; fref= 5250 *1000; //5.25MHz desired_lo1=rfin+if1; lo1=(2*(desired_lo1/1000)+(fref/1000)) / (2*fref/1000); lo1n=lo1/8; lo1a=lo1-(lo1n*8); s=rfin/1000/1000+1090; if(optimize_vco) { if(s>1890) sel=0; else if(s>1720) sel=1; else if(s>1530) sel=2; else if(s>1370) sel=3; else sel=4; // >1090 } else { if(s>1790) sel=0; // <1958 else if(s>1617) sel=1; else if(s>1449) sel=2; else if(s>1291) sel=3; else sel=4; // >1090 } *ret_sel=sel; lo1freq=(lo1a+8*lo1n)*fref; dprintk("mt2032: rfin=%d lo1=%d lo1n=%d lo1a=%d sel=%d, lo1freq=%d\n", rfin,lo1,lo1n,lo1a,sel,lo1freq); desired_lo2=lo1freq-rfin-if2; lo2=(desired_lo2)/fref; lo2n=lo2/8; lo2a=lo2-(lo2n*8); lo2num=((desired_lo2/1000)%(fref/1000))* 3780/(fref/1000); //scale to fit in 32bit arith lo2freq=(lo2a+8*lo2n)*fref + lo2num*(fref/1000)/3780*1000; dprintk("mt2032: rfin=%d lo2=%d lo2n=%d lo2a=%d num=%d lo2freq=%d\n", rfin,lo2,lo2n,lo2a,lo2num,lo2freq); if(lo1a<0 || lo1a>7 || lo1n<17 ||lo1n>48 || lo2a<0 ||lo2a >7 ||lo2n<17 || lo2n>30) { printk("mt2032: frequency parameters out of range: %d %d %d %d\n", lo1a, lo1n, lo2a,lo2n); return(-1); } mt2032_spurcheck(lo1freq, desired_lo2, spectrum_from, spectrum_to); // should recalculate lo1 (one step up/down) // set up MT2032 register map for transfer over i2c buf[0]=lo1n-1; buf[1]=lo1a | (sel<<4); buf[2]=0x86; // LOGC buf[3]=0x0f; //reserved buf[4]=0x1f; buf[5]=(lo2n-1) | (lo2a<<5); if(rfin >400*1000*1000) buf[6]=0xe4; else buf[6]=0xf4; // set PKEN per rev 1.2 buf[7]=8+xogc; buf[8]=0xc3; //reserved buf[9]=0x4e; //reserved buf[10]=0xec; //reserved buf[11]=(lo2num&0xff); buf[12]=(lo2num>>8) |0x80; // Lo2RST return 0; } 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%02x\n",buf[0]); lock=buf[0] &0x06; if (lock==6) break; dprintk("mt2032: pll wait 1ms for lock (0x%2x)\n",buf[0]); udelay(1000); } return lock; } 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%02x\n",buf[0]); tad1=buf[0]&0x07; if(tad1 ==0) return lock; if(tad1 ==1) return lock; if(tad1==2) { if(sel==0) return lock; else sel--; } else { if(sel<4) sel++; else return lock; } dprintk("mt2032 optimize_vco: sel=%d\n",sel); buf[0]=0x0f; buf[1]=sel; i2c_master_send(c,buf,2); lock=mt2032_check_lo_lock(c); return lock; } 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=%d\n",rfin,if1,if2,from,to); buf[0]=0; ret=i2c_master_send(c,buf,1); i2c_master_recv(c,buf,21); buf[0]=0; ret=mt2032_compute_freq(rfin,if1,if2,from,to,&buf[1],&sel,t->xogc); if (ret<0) return; // send only the relevant registers per Rev. 1.2 buf[0]=0; ret=i2c_master_send(c,buf,4); buf[5]=5; ret=i2c_master_send(c,buf+5,4); buf[11]=11; ret=i2c_master_send(c,buf+11,3); if(ret!=3) printk("mt2032_set_if_freq failed with %d\n",ret); // wait for PLLs to lock (per manual), retry LINT if not. for(lint_try=0; lint_try<2; lint_try++) { lock=mt2032_check_lo_lock(c); if(optimize_vco) lock=mt2032_optimize_vco(c,sel,lock); if(lock==6) break; printk("mt2032: re-init PLLs by LINT\n"); buf[0]=7; buf[1]=0x80 +8+t->xogc; // set LINT to re-init PLLs i2c_master_send(c,buf,2); mdelay(10); buf[1]=8+t->xogc; i2c_master_send(c,buf,2); } if (lock!=6) printk("MT2032 Fatal Error: PLLs didn't lock.\n"); buf[0]=2; buf[1]=0x20; // LOGC for optimal phase noise ret=i2c_master_send(c,buf,2); if (ret!=2) printk("mt2032_set_if_freq2 failed with %d\n",ret); } 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 set\n"); return; } if (t->type == TUNER_MT2032) { mt2032_set_tv_freq(c,freq,t->mode); return; } if (freq < tv_range[0]*16 || freq > tv_range[1]*16) { /* FIXME: better do that chip-specific, but right now we don't have that in the config 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: /* 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; } 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) { u8 config; u16 div; struct tunertype *tun; struct tuner *t = (struct tuner*)c->data; unsigned char buffer[4]; int rc; 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 set\n"); return; } if (t->type == TUNER_MT2032) { mt2032_set_radio_freq(c,freq); return; } tun=&tuners[t->type]; config = 0xa4 /* 0xa5 */; /* bit 0 is AFC (set) vs. RF-Signal (clear) */ div=freq + (int)(16*10.7); div&=0x7fff; buffer[0] = (div>>8) & 0x7f; buffer[1] = div & 0xff; buffer[2] = tun->config; buffer[3] = config; if (4 != (rc = i2c_master_send(c,buffer,4))) printk("tuner: i2c i/o error: rc == %d (should be 4)\n",rc); if (debug) { current->state = TASK_INTERRUPTIBLE; schedule_timeout(HZ/10); if (tuner_islocked (c)) printk ("tuner: PLL locked\n"); else printk ("tuner: PLL not locked\n"); if (config & 1) { printk ("tuner: AFC: %d\n", tuner_afcstatus(c)); } else { printk ("tuner: Signal: %d\n", tuner_signal(c)); } } } /* ---------------------------------------------------------------------- */ 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%x\n", 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_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.%02d\n", (*iarg)/16,(*iarg)%16*100/16); set_radio_freq(client,*v); } else { dprintk("tuner: tv freq set to %d.%02d\n", (*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.%02d\n", (*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.%02d\n", (*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_SECAM\n"); } else { int mode=(*sarg==VIDEO_MODE_SECAM)?1:0; dprintk("tuner: mode set to %d\n", *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: */ |