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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 | // SPDX-License-Identifier: GPL-2.0-or-later /* * mxl5007t.c - driver for the MaxLinear MxL5007T silicon tuner * * Copyright (C) 2008, 2009 Michael Krufky <mkrufky@linuxtv.org> */ #include <linux/i2c.h> #include <linux/types.h> #include <linux/videodev2.h> #include "tuner-i2c.h" #include "mxl5007t.h" static DEFINE_MUTEX(mxl5007t_list_mutex); static LIST_HEAD(hybrid_tuner_instance_list); static int mxl5007t_debug; module_param_named(debug, mxl5007t_debug, int, 0644); MODULE_PARM_DESC(debug, "set debug level"); /* ------------------------------------------------------------------------- */ #define mxl_printk(kern, fmt, arg...) \ printk(kern "%s: " fmt "\n", __func__, ##arg) #define mxl_err(fmt, arg...) \ mxl_printk(KERN_ERR, "%d: " fmt, __LINE__, ##arg) #define mxl_warn(fmt, arg...) \ mxl_printk(KERN_WARNING, fmt, ##arg) #define mxl_info(fmt, arg...) \ mxl_printk(KERN_INFO, fmt, ##arg) #define mxl_debug(fmt, arg...) \ ({ \ if (mxl5007t_debug) \ mxl_printk(KERN_DEBUG, fmt, ##arg); \ }) #define mxl_fail(ret) \ ({ \ int __ret; \ __ret = (ret < 0); \ if (__ret) \ mxl_printk(KERN_ERR, "error %d on line %d", \ ret, __LINE__); \ __ret; \ }) /* ------------------------------------------------------------------------- */ enum mxl5007t_mode { MxL_MODE_ISDBT = 0, MxL_MODE_DVBT = 1, MxL_MODE_ATSC = 2, MxL_MODE_CABLE = 0x10, }; enum mxl5007t_chip_version { MxL_UNKNOWN_ID = 0x00, MxL_5007_V1_F1 = 0x11, MxL_5007_V1_F2 = 0x12, MxL_5007_V4 = 0x14, MxL_5007_V2_100_F1 = 0x21, MxL_5007_V2_100_F2 = 0x22, MxL_5007_V2_200_F1 = 0x23, MxL_5007_V2_200_F2 = 0x24, }; struct reg_pair_t { u8 reg; u8 val; }; /* ------------------------------------------------------------------------- */ static struct reg_pair_t init_tab[] = { { 0x02, 0x06 }, { 0x03, 0x48 }, { 0x05, 0x04 }, { 0x06, 0x10 }, { 0x2e, 0x15 }, /* OVERRIDE */ { 0x30, 0x10 }, /* OVERRIDE */ { 0x45, 0x58 }, /* OVERRIDE */ { 0x48, 0x19 }, /* OVERRIDE */ { 0x52, 0x03 }, /* OVERRIDE */ { 0x53, 0x44 }, /* OVERRIDE */ { 0x6a, 0x4b }, /* OVERRIDE */ { 0x76, 0x00 }, /* OVERRIDE */ { 0x78, 0x18 }, /* OVERRIDE */ { 0x7a, 0x17 }, /* OVERRIDE */ { 0x85, 0x06 }, /* OVERRIDE */ { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ { 0, 0 } }; static struct reg_pair_t init_tab_cable[] = { { 0x02, 0x06 }, { 0x03, 0x48 }, { 0x05, 0x04 }, { 0x06, 0x10 }, { 0x09, 0x3f }, { 0x0a, 0x3f }, { 0x0b, 0x3f }, { 0x2e, 0x15 }, /* OVERRIDE */ { 0x30, 0x10 }, /* OVERRIDE */ { 0x45, 0x58 }, /* OVERRIDE */ { 0x48, 0x19 }, /* OVERRIDE */ { 0x52, 0x03 }, /* OVERRIDE */ { 0x53, 0x44 }, /* OVERRIDE */ { 0x6a, 0x4b }, /* OVERRIDE */ { 0x76, 0x00 }, /* OVERRIDE */ { 0x78, 0x18 }, /* OVERRIDE */ { 0x7a, 0x17 }, /* OVERRIDE */ { 0x85, 0x06 }, /* OVERRIDE */ { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */ { 0, 0 } }; /* ------------------------------------------------------------------------- */ static struct reg_pair_t reg_pair_rftune[] = { { 0x0f, 0x00 }, /* abort tune */ { 0x0c, 0x15 }, { 0x0d, 0x40 }, { 0x0e, 0x0e }, { 0x1f, 0x87 }, /* OVERRIDE */ { 0x20, 0x1f }, /* OVERRIDE */ { 0x21, 0x87 }, /* OVERRIDE */ { 0x22, 0x1f }, /* OVERRIDE */ { 0x80, 0x01 }, /* freq dependent */ { 0x0f, 0x01 }, /* start tune */ { 0, 0 } }; /* ------------------------------------------------------------------------- */ struct mxl5007t_state { struct list_head hybrid_tuner_instance_list; struct tuner_i2c_props i2c_props; struct mutex lock; struct mxl5007t_config *config; enum mxl5007t_chip_version chip_id; struct reg_pair_t tab_init[ARRAY_SIZE(init_tab)]; struct reg_pair_t tab_init_cable[ARRAY_SIZE(init_tab_cable)]; struct reg_pair_t tab_rftune[ARRAY_SIZE(reg_pair_rftune)]; enum mxl5007t_if_freq if_freq; u32 frequency; u32 bandwidth; }; /* ------------------------------------------------------------------------- */ /* called by _init and _rftun to manipulate the register arrays */ static void set_reg_bits(struct reg_pair_t *reg_pair, u8 reg, u8 mask, u8 val) { unsigned int i = 0; while (reg_pair[i].reg || reg_pair[i].val) { if (reg_pair[i].reg == reg) { reg_pair[i].val &= ~mask; reg_pair[i].val |= val; } i++; } } static void copy_reg_bits(struct reg_pair_t *reg_pair1, struct reg_pair_t *reg_pair2) { unsigned int i, j; i = j = 0; while (reg_pair1[i].reg || reg_pair1[i].val) { while (reg_pair2[j].reg || reg_pair2[j].val) { if (reg_pair1[i].reg != reg_pair2[j].reg) { j++; continue; } reg_pair2[j].val = reg_pair1[i].val; break; } i++; } } /* ------------------------------------------------------------------------- */ static void mxl5007t_set_mode_bits(struct mxl5007t_state *state, enum mxl5007t_mode mode, s32 if_diff_out_level) { switch (mode) { case MxL_MODE_ATSC: set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12); break; case MxL_MODE_DVBT: set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11); break; case MxL_MODE_ISDBT: set_reg_bits(state->tab_init, 0x06, 0x1f, 0x10); break; case MxL_MODE_CABLE: set_reg_bits(state->tab_init_cable, 0x09, 0xff, 0xc1); set_reg_bits(state->tab_init_cable, 0x0a, 0xff, 8 - if_diff_out_level); set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17); break; default: mxl_fail(-EINVAL); } } static void mxl5007t_set_if_freq_bits(struct mxl5007t_state *state, enum mxl5007t_if_freq if_freq, int invert_if) { u8 val; switch (if_freq) { case MxL_IF_4_MHZ: val = 0x00; break; case MxL_IF_4_5_MHZ: val = 0x02; break; case MxL_IF_4_57_MHZ: val = 0x03; break; case MxL_IF_5_MHZ: val = 0x04; break; case MxL_IF_5_38_MHZ: val = 0x05; break; case MxL_IF_6_MHZ: val = 0x06; break; case MxL_IF_6_28_MHZ: val = 0x07; break; case MxL_IF_9_1915_MHZ: val = 0x08; break; case MxL_IF_35_25_MHZ: val = 0x09; break; case MxL_IF_36_15_MHZ: val = 0x0a; break; case MxL_IF_44_MHZ: val = 0x0b; break; default: mxl_fail(-EINVAL); return; } set_reg_bits(state->tab_init, 0x02, 0x0f, val); /* set inverted IF or normal IF */ set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00); state->if_freq = if_freq; } static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state, enum mxl5007t_xtal_freq xtal_freq) { switch (xtal_freq) { case MxL_XTAL_16_MHZ: /* select xtal freq & ref freq */ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00); break; case MxL_XTAL_20_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01); break; case MxL_XTAL_20_25_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02); break; case MxL_XTAL_20_48_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03); break; case MxL_XTAL_24_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04); break; case MxL_XTAL_25_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05); break; case MxL_XTAL_25_14_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06); break; case MxL_XTAL_27_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07); break; case MxL_XTAL_28_8_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08); break; case MxL_XTAL_32_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09); break; case MxL_XTAL_40_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a); break; case MxL_XTAL_44_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b); break; case MxL_XTAL_48_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c); break; case MxL_XTAL_49_3811_MHZ: set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0); set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d); break; default: mxl_fail(-EINVAL); return; } } static struct reg_pair_t *mxl5007t_calc_init_regs(struct mxl5007t_state *state, enum mxl5007t_mode mode) { struct mxl5007t_config *cfg = state->config; memcpy(&state->tab_init, &init_tab, sizeof(init_tab)); memcpy(&state->tab_init_cable, &init_tab_cable, sizeof(init_tab_cable)); mxl5007t_set_mode_bits(state, mode, cfg->if_diff_out_level); mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if); mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz); set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3); set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp); if (mode >= MxL_MODE_CABLE) { copy_reg_bits(state->tab_init, state->tab_init_cable); return state->tab_init_cable; } else return state->tab_init; } /* ------------------------------------------------------------------------- */ enum mxl5007t_bw_mhz { MxL_BW_6MHz = 6, MxL_BW_7MHz = 7, MxL_BW_8MHz = 8, }; static void mxl5007t_set_bw_bits(struct mxl5007t_state *state, enum mxl5007t_bw_mhz bw) { u8 val; switch (bw) { case MxL_BW_6MHz: val = 0x15; /* set DIG_MODEINDEX, DIG_MODEINDEX_A, * and DIG_MODEINDEX_CSF */ break; case MxL_BW_7MHz: val = 0x2a; break; case MxL_BW_8MHz: val = 0x3f; break; default: mxl_fail(-EINVAL); return; } set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val); } static struct reg_pair_t *mxl5007t_calc_rf_tune_regs(struct mxl5007t_state *state, u32 rf_freq, enum mxl5007t_bw_mhz bw) { u32 dig_rf_freq = 0; u32 temp; u32 frac_divider = 1000000; unsigned int i; memcpy(&state->tab_rftune, ®_pair_rftune, sizeof(reg_pair_rftune)); mxl5007t_set_bw_bits(state, bw); /* Convert RF frequency into 16 bits => * 10 bit integer (MHz) + 6 bit fraction */ dig_rf_freq = rf_freq / MHz; temp = rf_freq % MHz; for (i = 0; i < 6; i++) { dig_rf_freq <<= 1; frac_divider /= 2; if (temp > frac_divider) { temp -= frac_divider; dig_rf_freq++; } } /* add to have shift center point by 7.8124 kHz */ if (temp > 7812) dig_rf_freq++; set_reg_bits(state->tab_rftune, 0x0d, 0xff, (u8) dig_rf_freq); set_reg_bits(state->tab_rftune, 0x0e, 0xff, (u8) (dig_rf_freq >> 8)); if (rf_freq >= 333000000) set_reg_bits(state->tab_rftune, 0x80, 0x40, 0x40); return state->tab_rftune; } /* ------------------------------------------------------------------------- */ static int mxl5007t_write_reg(struct mxl5007t_state *state, u8 reg, u8 val) { u8 buf[] = { reg, val }; struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0, .buf = buf, .len = 2 }; int ret; ret = i2c_transfer(state->i2c_props.adap, &msg, 1); if (ret != 1) { mxl_err("failed!"); return -EREMOTEIO; } return 0; } static int mxl5007t_write_regs(struct mxl5007t_state *state, struct reg_pair_t *reg_pair) { unsigned int i = 0; int ret = 0; while ((ret == 0) && (reg_pair[i].reg || reg_pair[i].val)) { ret = mxl5007t_write_reg(state, reg_pair[i].reg, reg_pair[i].val); i++; } return ret; } static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val) { u8 buf[2] = { 0xfb, reg }; struct i2c_msg msg[] = { { .addr = state->i2c_props.addr, .flags = 0, .buf = buf, .len = 2 }, { .addr = state->i2c_props.addr, .flags = I2C_M_RD, .buf = val, .len = 1 }, }; int ret; ret = i2c_transfer(state->i2c_props.adap, msg, 2); if (ret != 2) { mxl_err("failed!"); return -EREMOTEIO; } return 0; } static int mxl5007t_soft_reset(struct mxl5007t_state *state) { u8 d = 0xff; struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0, .buf = &d, .len = 1 }; int ret = i2c_transfer(state->i2c_props.adap, &msg, 1); if (ret != 1) { mxl_err("failed!"); return -EREMOTEIO; } return 0; } static int mxl5007t_tuner_init(struct mxl5007t_state *state, enum mxl5007t_mode mode) { struct reg_pair_t *init_regs; int ret; /* calculate initialization reg array */ init_regs = mxl5007t_calc_init_regs(state, mode); ret = mxl5007t_write_regs(state, init_regs); if (mxl_fail(ret)) goto fail; mdelay(1); fail: return ret; } static int mxl5007t_tuner_rf_tune(struct mxl5007t_state *state, u32 rf_freq_hz, enum mxl5007t_bw_mhz bw) { struct reg_pair_t *rf_tune_regs; int ret; /* calculate channel change reg array */ rf_tune_regs = mxl5007t_calc_rf_tune_regs(state, rf_freq_hz, bw); ret = mxl5007t_write_regs(state, rf_tune_regs); if (mxl_fail(ret)) goto fail; msleep(3); fail: return ret; } /* ------------------------------------------------------------------------- */ static int mxl5007t_synth_lock_status(struct mxl5007t_state *state, int *rf_locked, int *ref_locked) { u8 d; int ret; *rf_locked = 0; *ref_locked = 0; ret = mxl5007t_read_reg(state, 0xd8, &d); if (mxl_fail(ret)) goto fail; if ((d & 0x0c) == 0x0c) *rf_locked = 1; if ((d & 0x03) == 0x03) *ref_locked = 1; fail: return ret; } /* ------------------------------------------------------------------------- */ static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status) { struct mxl5007t_state *state = fe->tuner_priv; int rf_locked, ref_locked, ret; *status = 0; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); ret = mxl5007t_synth_lock_status(state, &rf_locked, &ref_locked); if (mxl_fail(ret)) goto fail; mxl_debug("%s%s", rf_locked ? "rf locked " : "", ref_locked ? "ref locked" : ""); if ((rf_locked) || (ref_locked)) *status |= TUNER_STATUS_LOCKED; fail: if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); return ret; } /* ------------------------------------------------------------------------- */ static int mxl5007t_set_params(struct dvb_frontend *fe) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; u32 delsys = c->delivery_system; struct mxl5007t_state *state = fe->tuner_priv; enum mxl5007t_bw_mhz bw; enum mxl5007t_mode mode; int ret; u32 freq = c->frequency; switch (delsys) { case SYS_ATSC: mode = MxL_MODE_ATSC; bw = MxL_BW_6MHz; break; case SYS_DVBC_ANNEX_B: mode = MxL_MODE_CABLE; bw = MxL_BW_6MHz; break; case SYS_DVBT: case SYS_DVBT2: mode = MxL_MODE_DVBT; switch (c->bandwidth_hz) { case 6000000: bw = MxL_BW_6MHz; break; case 7000000: bw = MxL_BW_7MHz; break; case 8000000: bw = MxL_BW_8MHz; break; default: return -EINVAL; } break; default: mxl_err("modulation type not supported!"); return -EINVAL; } if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); mutex_lock(&state->lock); ret = mxl5007t_tuner_init(state, mode); if (mxl_fail(ret)) goto fail; ret = mxl5007t_tuner_rf_tune(state, freq, bw); if (mxl_fail(ret)) goto fail; state->frequency = freq; state->bandwidth = c->bandwidth_hz; fail: mutex_unlock(&state->lock); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); return ret; } /* ------------------------------------------------------------------------- */ static int mxl5007t_init(struct dvb_frontend *fe) { struct mxl5007t_state *state = fe->tuner_priv; int ret; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); /* wake from standby */ ret = mxl5007t_write_reg(state, 0x01, 0x01); mxl_fail(ret); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); return ret; } static int mxl5007t_sleep(struct dvb_frontend *fe) { struct mxl5007t_state *state = fe->tuner_priv; int ret; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); /* enter standby mode */ ret = mxl5007t_write_reg(state, 0x01, 0x00); mxl_fail(ret); ret = mxl5007t_write_reg(state, 0x0f, 0x00); mxl_fail(ret); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); return ret; } /* ------------------------------------------------------------------------- */ static int mxl5007t_get_frequency(struct dvb_frontend *fe, u32 *frequency) { struct mxl5007t_state *state = fe->tuner_priv; *frequency = state->frequency; return 0; } static int mxl5007t_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) { struct mxl5007t_state *state = fe->tuner_priv; *bandwidth = state->bandwidth; return 0; } static int mxl5007t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) { struct mxl5007t_state *state = fe->tuner_priv; *frequency = 0; switch (state->if_freq) { case MxL_IF_4_MHZ: *frequency = 4000000; break; case MxL_IF_4_5_MHZ: *frequency = 4500000; break; case MxL_IF_4_57_MHZ: *frequency = 4570000; break; case MxL_IF_5_MHZ: *frequency = 5000000; break; case MxL_IF_5_38_MHZ: *frequency = 5380000; break; case MxL_IF_6_MHZ: *frequency = 6000000; break; case MxL_IF_6_28_MHZ: *frequency = 6280000; break; case MxL_IF_9_1915_MHZ: *frequency = 9191500; break; case MxL_IF_35_25_MHZ: *frequency = 35250000; break; case MxL_IF_36_15_MHZ: *frequency = 36150000; break; case MxL_IF_44_MHZ: *frequency = 44000000; break; } return 0; } static void mxl5007t_release(struct dvb_frontend *fe) { struct mxl5007t_state *state = fe->tuner_priv; mutex_lock(&mxl5007t_list_mutex); if (state) hybrid_tuner_release_state(state); mutex_unlock(&mxl5007t_list_mutex); fe->tuner_priv = NULL; } /* ------------------------------------------------------------------------- */ static const struct dvb_tuner_ops mxl5007t_tuner_ops = { .info = { .name = "MaxLinear MxL5007T", }, .init = mxl5007t_init, .sleep = mxl5007t_sleep, .set_params = mxl5007t_set_params, .get_status = mxl5007t_get_status, .get_frequency = mxl5007t_get_frequency, .get_bandwidth = mxl5007t_get_bandwidth, .release = mxl5007t_release, .get_if_frequency = mxl5007t_get_if_frequency, }; static int mxl5007t_get_chip_id(struct mxl5007t_state *state) { char *name; int ret; u8 id; ret = mxl5007t_read_reg(state, 0xd9, &id); if (mxl_fail(ret)) goto fail; switch (id) { case MxL_5007_V1_F1: name = "MxL5007.v1.f1"; break; case MxL_5007_V1_F2: name = "MxL5007.v1.f2"; break; case MxL_5007_V2_100_F1: name = "MxL5007.v2.100.f1"; break; case MxL_5007_V2_100_F2: name = "MxL5007.v2.100.f2"; break; case MxL_5007_V2_200_F1: name = "MxL5007.v2.200.f1"; break; case MxL_5007_V2_200_F2: name = "MxL5007.v2.200.f2"; break; case MxL_5007_V4: name = "MxL5007T.v4"; break; default: name = "MxL5007T"; printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id); id = MxL_UNKNOWN_ID; } state->chip_id = id; mxl_info("%s detected @ %d-%04x", name, i2c_adapter_id(state->i2c_props.adap), state->i2c_props.addr); return 0; fail: mxl_warn("unable to identify device @ %d-%04x", i2c_adapter_id(state->i2c_props.adap), state->i2c_props.addr); state->chip_id = MxL_UNKNOWN_ID; return ret; } struct dvb_frontend *mxl5007t_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 addr, struct mxl5007t_config *cfg) { struct mxl5007t_state *state = NULL; int instance, ret; mutex_lock(&mxl5007t_list_mutex); instance = hybrid_tuner_request_state(struct mxl5007t_state, state, hybrid_tuner_instance_list, i2c, addr, "mxl5007t"); switch (instance) { case 0: goto fail; case 1: /* new tuner instance */ state->config = cfg; mutex_init(&state->lock); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); ret = mxl5007t_get_chip_id(state); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); /* check return value of mxl5007t_get_chip_id */ if (mxl_fail(ret)) goto fail; break; default: /* existing tuner instance */ break; } if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); ret = mxl5007t_soft_reset(state); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); if (mxl_fail(ret)) goto fail; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); ret = mxl5007t_write_reg(state, 0x04, state->config->loop_thru_enable); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); if (mxl_fail(ret)) goto fail; fe->tuner_priv = state; mutex_unlock(&mxl5007t_list_mutex); memcpy(&fe->ops.tuner_ops, &mxl5007t_tuner_ops, sizeof(struct dvb_tuner_ops)); return fe; fail: mutex_unlock(&mxl5007t_list_mutex); mxl5007t_release(fe); return NULL; } EXPORT_SYMBOL_GPL(mxl5007t_attach); MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver"); MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); MODULE_LICENSE("GPL"); MODULE_VERSION("0.2"); |