kernel/drivers/media/usb/dvb-usb/af9005-fe.c

   1 /* Frontend part of the Linux driver for the Afatech 9005
   2  * USB1.1 DVB-T receiver.
   3  *
   4  * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org)
   5  *
   6  * Thanks to Afatech who kindly provided information.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * see Documentation/dvb/README.dvb-usb for more information
  23  */
  24 #include "af9005.h"
  25 #include "af9005-script.h"
  26 #include "mt2060.h"
  27 #include "qt1010.h"
  28 #include <asm/div64.h>
  29
  30 struct af9005_fe_state {
  31         struct dvb_usb_device *d;
  32         enum fe_status stat;
  33
  34         /* retraining parameters */
  35         u32 original_fcw;
  36         u16 original_rf_top;
  37         u16 original_if_top;
  38         u16 original_if_min;
  39         u16 original_aci0_if_top;
  40         u16 original_aci1_if_top;
  41         u16 original_aci0_if_min;
  42         u8 original_if_unplug_th;
  43         u8 original_rf_unplug_th;
  44         u8 original_dtop_if_unplug_th;
  45         u8 original_dtop_rf_unplug_th;
  46
  47         /* statistics */
  48         u32 pre_vit_error_count;
  49         u32 pre_vit_bit_count;
  50         u32 ber;
  51         u32 post_vit_error_count;
  52         u32 post_vit_bit_count;
  53         u32 unc;
  54         u16 abort_count;
  55
  56         int opened;
  57         int strong;
  58         unsigned long next_status_check;
  59         struct dvb_frontend frontend;
  60 };
  61
  62 static int af9005_write_word_agc(struct dvb_usb_device *d, u16 reghi,
  63                                  u16 reglo, u8 pos, u8 len, u16 value)
  64 {
  65         int ret;
  66
  67         if ((ret = af9005_write_ofdm_register(d, reglo, (u8) (value & 0xff))))
  68                 return ret;
  69         return af9005_write_register_bits(d, reghi, pos, len,
  70                                           (u8) ((value & 0x300) >> 8));
  71 }
  72
  73 static int af9005_read_word_agc(struct dvb_usb_device *d, u16 reghi,
  74                                 u16 reglo, u8 pos, u8 len, u16 * value)
  75 {
  76         int ret;
  77         u8 temp0, temp1;
  78
  79         if ((ret = af9005_read_ofdm_register(d, reglo, &temp0)))
  80                 return ret;
  81         if ((ret = af9005_read_ofdm_register(d, reghi, &temp1)))
  82                 return ret;
  83         switch (pos) {
  84         case 0:
  85                 *value = ((u16) (temp1 & 0x03) << 8) + (u16) temp0;
  86                 break;
  87         case 2:
  88                 *value = ((u16) (temp1 & 0x0C) << 6) + (u16) temp0;
  89                 break;
  90         case 4:
  91                 *value = ((u16) (temp1 & 0x30) << 4) + (u16) temp0;
  92                 break;
  93         case 6:
  94                 *value = ((u16) (temp1 & 0xC0) << 2) + (u16) temp0;
  95                 break;
  96         default:
  97                 err("invalid pos in read word agc");
  98                 return -EINVAL;
  99         }
 100         return 0;
 101
 102 }
 103
 104 static int af9005_is_fecmon_available(struct dvb_frontend *fe, int *available)
 105 {
 106         struct af9005_fe_state *state = fe->demodulator_priv;
 107         int ret;
 108         u8 temp;
 109
 110         *available = false;
 111
 112         ret = af9005_read_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en,
 113                                         fec_vtb_rsd_mon_en_pos,
 114                                         fec_vtb_rsd_mon_en_len, &temp);
 115         if (ret)
 116                 return ret;
 117         if (temp & 1) {
 118                 ret =
 119                     af9005_read_register_bits(state->d,
 120                                               xd_p_reg_ofsm_read_rbc_en,
 121                                               reg_ofsm_read_rbc_en_pos,
 122                                               reg_ofsm_read_rbc_en_len, &temp);
 123                 if (ret)
 124                         return ret;
 125                 if ((temp & 1) == 0)
 126                         *available = true;
 127
 128         }
 129         return 0;
 130 }
 131
 132 static int af9005_get_post_vit_err_cw_count(struct dvb_frontend *fe,
 133                                             u32 * post_err_count,
 134                                             u32 * post_cw_count,
 135                                             u16 * abort_count)
 136 {
 137         struct af9005_fe_state *state = fe->demodulator_priv;
 138         int ret;
 139         u32 err_count;
 140         u32 cw_count;
 141         u8 temp, temp0, temp1, temp2;
 142         u16 loc_abort_count;
 143
 144         *post_err_count = 0;
 145         *post_cw_count = 0;
 146
 147         /* check if error bit count is ready */
 148         ret =
 149             af9005_read_register_bits(state->d, xd_r_fec_rsd_ber_rdy,
 150                                       fec_rsd_ber_rdy_pos, fec_rsd_ber_rdy_len,
 151                                       &temp);
 152         if (ret)
 153                 return ret;
 154         if (!temp) {
 155                 deb_info("rsd counter not ready\n");
 156                 return 100;
 157         }
 158         /* get abort count */
 159         ret =
 160             af9005_read_ofdm_register(state->d,
 161                                       xd_r_fec_rsd_abort_packet_cnt_7_0,
 162                                       &temp0);
 163         if (ret)
 164                 return ret;
 165         ret =
 166             af9005_read_ofdm_register(state->d,
 167                                       xd_r_fec_rsd_abort_packet_cnt_15_8,
 168                                       &temp1);
 169         if (ret)
 170                 return ret;
 171         loc_abort_count = ((u16) temp1 << 8) + temp0;
 172
 173         /* get error count */
 174         ret =
 175             af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_7_0,
 176                                       &temp0);
 177         if (ret)
 178                 return ret;
 179         ret =
 180             af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_15_8,
 181                                       &temp1);
 182         if (ret)
 183                 return ret;
 184         ret =
 185             af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_23_16,
 186                                       &temp2);
 187         if (ret)
 188                 return ret;
 189         err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0;
 190         *post_err_count = err_count - (u32) loc_abort_count *8 * 8;
 191
 192         /* get RSD packet number */
 193         ret =
 194             af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0,
 195                                       &temp0);
 196         if (ret)
 197                 return ret;
 198         ret =
 199             af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8,
 200                                       &temp1);
 201         if (ret)
 202                 return ret;
 203         cw_count = ((u32) temp1 << 8) + temp0;
 204         if (cw_count == 0) {
 205                 err("wrong RSD packet count");
 206                 return -EIO;
 207         }
 208         deb_info("POST abort count %d err count %d rsd packets %d\n",
 209                  loc_abort_count, err_count, cw_count);
 210         *post_cw_count = cw_count - (u32) loc_abort_count;
 211         *abort_count = loc_abort_count;
 212         return 0;
 213
 214 }
 215
 216 static int af9005_get_post_vit_ber(struct dvb_frontend *fe,
 217                                    u32 * post_err_count, u32 * post_cw_count,
 218                                    u16 * abort_count)
 219 {
 220         u32 loc_cw_count = 0, loc_err_count;
 221         u16 loc_abort_count = 0;
 222         int ret;
 223
 224         ret =
 225             af9005_get_post_vit_err_cw_count(fe, &loc_err_count, &loc_cw_count,
 226                                              &loc_abort_count);
 227         if (ret)
 228                 return ret;
 229         *post_err_count = loc_err_count;
 230         *post_cw_count = loc_cw_count * 204 * 8;
 231         *abort_count = loc_abort_count;
 232
 233         return 0;
 234 }
 235
 236 static int af9005_get_pre_vit_err_bit_count(struct dvb_frontend *fe,
 237                                             u32 * pre_err_count,
 238                                             u32 * pre_bit_count)
 239 {
 240         struct af9005_fe_state *state = fe->demodulator_priv;
 241         u8 temp, temp0, temp1, temp2;
 242         u32 super_frame_count, x, bits;
 243         int ret;
 244
 245         ret =
 246             af9005_read_register_bits(state->d, xd_r_fec_vtb_ber_rdy,
 247                                       fec_vtb_ber_rdy_pos, fec_vtb_ber_rdy_len,
 248                                       &temp);
 249         if (ret)
 250                 return ret;
 251         if (!temp) {
 252                 deb_info("viterbi counter not ready\n");
 253                 return 101;     /* ERR_APO_VTB_COUNTER_NOT_READY; */
 254         }
 255         ret =
 256             af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_7_0,
 257                                       &temp0);
 258         if (ret)
 259                 return ret;
 260         ret =
 261             af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_15_8,
 262                                       &temp1);
 263         if (ret)
 264                 return ret;
 265         ret =
 266             af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_23_16,
 267                                       &temp2);
 268         if (ret)
 269                 return ret;
 270         *pre_err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0;
 271
 272         ret =
 273             af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0,
 274                                       &temp0);
 275         if (ret)
 276                 return ret;
 277         ret =
 278             af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8,
 279                                       &temp1);
 280         if (ret)
 281                 return ret;
 282         super_frame_count = ((u32) temp1 << 8) + temp0;
 283         if (super_frame_count == 0) {
 284                 deb_info("super frame count 0\n");
 285                 return 102;
 286         }
 287
 288         /* read fft mode */
 289         ret =
 290             af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod,
 291                                       reg_tpsd_txmod_pos, reg_tpsd_txmod_len,
 292                                       &temp);
 293         if (ret)
 294                 return ret;
 295         if (temp == 0) {
 296                 /* 2K */
 297                 x = 1512;
 298         } else if (temp == 1) {
 299                 /* 8k */
 300                 x = 6048;
 301         } else {
 302                 err("Invalid fft mode");
 303                 return -EINVAL;
 304         }
 305
 306         /* read modulation mode */
 307         ret =
 308             af9005_read_register_bits(state->d, xd_g_reg_tpsd_const,
 309                                       reg_tpsd_const_pos, reg_tpsd_const_len,
 310                                       &temp);
 311         if (ret)
 312                 return ret;
 313         switch (temp) {
 314         case 0:         /* QPSK */
 315                 bits = 2;
 316                 break;
 317         case 1:         /* QAM_16 */
 318                 bits = 4;
 319                 break;
 320         case 2:         /* QAM_64 */
 321                 bits = 6;
 322                 break;
 323         default:
 324                 err("invalid modulation mode");
 325                 return -EINVAL;
 326         }
 327         *pre_bit_count = super_frame_count * 68 * 4 * x * bits;
 328         deb_info("PRE err count %d frame count %d bit count %d\n",
 329                  *pre_err_count, super_frame_count, *pre_bit_count);
 330         return 0;
 331 }
 332
 333 static int af9005_reset_pre_viterbi(struct dvb_frontend *fe)
 334 {
 335         struct af9005_fe_state *state = fe->demodulator_priv;
 336         int ret;
 337
 338         /* set super frame count to 1 */
 339         ret =
 340             af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0,
 341                                        1 & 0xff);
 342         if (ret)
 343                 return ret;
 344         ret = af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8,
 345                                          1 >> 8);
 346         if (ret)
 347                 return ret;
 348         /* reset pre viterbi error count */
 349         ret =
 350             af9005_write_register_bits(state->d, xd_p_fec_vtb_ber_rst,
 351                                        fec_vtb_ber_rst_pos, fec_vtb_ber_rst_len,
 352                                        1);
 353
 354         return ret;
 355 }
 356
 357 static int af9005_reset_post_viterbi(struct dvb_frontend *fe)
 358 {
 359         struct af9005_fe_state *state = fe->demodulator_priv;
 360         int ret;
 361
 362         /* set packet unit */
 363         ret =
 364             af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0,
 365                                        10000 & 0xff);
 366         if (ret)
 367                 return ret;
 368         ret =
 369             af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8,
 370                                        10000 >> 8);
 371         if (ret)
 372                 return ret;
 373         /* reset post viterbi error count */
 374         ret =
 375             af9005_write_register_bits(state->d, xd_p_fec_rsd_ber_rst,
 376                                        fec_rsd_ber_rst_pos, fec_rsd_ber_rst_len,
 377                                        1);
 378
 379         return ret;
 380 }
 381
 382 static int af9005_get_statistic(struct dvb_frontend *fe)
 383 {
 384         struct af9005_fe_state *state = fe->demodulator_priv;
 385         int ret, fecavailable;
 386         u64 numerator, denominator;
 387
 388         deb_info("GET STATISTIC\n");
 389         ret = af9005_is_fecmon_available(fe, &fecavailable);
 390         if (ret)
 391                 return ret;
 392         if (!fecavailable) {
 393                 deb_info("fecmon not available\n");
 394                 return 0;
 395         }
 396
 397         ret = af9005_get_pre_vit_err_bit_count(fe, &state->pre_vit_error_count,
 398                                                &state->pre_vit_bit_count);
 399         if (ret == 0) {
 400                 af9005_reset_pre_viterbi(fe);
 401                 if (state->pre_vit_bit_count > 0) {
 402                         /* according to v 0.0.4 of the dvb api ber should be a multiple
 403                            of 10E-9 so we have to multiply the error count by
 404                            10E9=1000000000 */
 405                         numerator =
 406                             (u64) state->pre_vit_error_count * (u64) 1000000000;
 407                         denominator = (u64) state->pre_vit_bit_count;
 408                         state->ber = do_div(numerator, denominator);
 409                 } else {
 410                         state->ber = 0xffffffff;
 411                 }
 412         }
 413
 414         ret = af9005_get_post_vit_ber(fe, &state->post_vit_error_count,
 415                                       &state->post_vit_bit_count,
 416                                       &state->abort_count);
 417         if (ret == 0) {
 418                 ret = af9005_reset_post_viterbi(fe);
 419                 state->unc += state->abort_count;
 420                 if (ret)
 421                         return ret;
 422         }
 423         return 0;
 424 }
 425
 426 static int af9005_fe_refresh_state(struct dvb_frontend *fe)
 427 {
 428         struct af9005_fe_state *state = fe->demodulator_priv;
 429         if (time_after(jiffies, state->next_status_check)) {
 430                 deb_info("REFRESH STATE\n");
 431
 432                 /* statistics */
 433                 if (af9005_get_statistic(fe))
 434                         err("get_statistic_failed");
 435                 state->next_status_check = jiffies + 250 * HZ / 1000;
 436         }
 437         return 0;
 438 }
 439
 440 static int af9005_fe_read_status(struct dvb_frontend *fe,
 441                                  enum fe_status *stat)
 442 {
 443         struct af9005_fe_state *state = fe->demodulator_priv;
 444         u8 temp;
 445         int ret;
 446
 447         if (fe->ops.tuner_ops.release == NULL)
 448                 return -ENODEV;
 449
 450         *stat = 0;
 451         ret = af9005_read_register_bits(state->d, xd_p_agc_lock,
 452                                         agc_lock_pos, agc_lock_len, &temp);
 453         if (ret)
 454                 return ret;
 455         if (temp)
 456                 *stat |= FE_HAS_SIGNAL;
 457
 458         ret = af9005_read_register_bits(state->d, xd_p_fd_tpsd_lock,
 459                                         fd_tpsd_lock_pos, fd_tpsd_lock_len,
 460                                         &temp);
 461         if (ret)
 462                 return ret;
 463         if (temp)
 464                 *stat |= FE_HAS_CARRIER;
 465
 466         ret = af9005_read_register_bits(state->d,
 467                                         xd_r_mp2if_sync_byte_locked,
 468                                         mp2if_sync_byte_locked_pos,
 469                                         mp2if_sync_byte_locked_pos, &temp);
 470         if (ret)
 471                 return ret;
 472         if (temp)
 473                 *stat |= FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_LOCK;
 474         if (state->opened)
 475                 af9005_led_control(state->d, *stat & FE_HAS_LOCK);
 476
 477         ret =
 478             af9005_read_register_bits(state->d, xd_p_reg_strong_sginal_detected,
 479                                       reg_strong_sginal_detected_pos,
 480                                       reg_strong_sginal_detected_len, &temp);
 481         if (ret)
 482                 return ret;
 483         if (temp != state->strong) {
 484                 deb_info("adjust for strong signal %d\n", temp);
 485                 state->strong = temp;
 486         }
 487         return 0;
 488 }
 489
 490 static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber)
 491 {
 492         struct af9005_fe_state *state = fe->demodulator_priv;
 493         if (fe->ops.tuner_ops.release  == NULL)
 494                 return -ENODEV;
 495         af9005_fe_refresh_state(fe);
 496         *ber = state->ber;
 497         return 0;
 498 }
 499
 500 static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
 501 {
 502         struct af9005_fe_state *state = fe->demodulator_priv;
 503         if (fe->ops.tuner_ops.release == NULL)
 504                 return -ENODEV;
 505         af9005_fe_refresh_state(fe);
 506         *unc = state->unc;
 507         return 0;
 508 }
 509
 510 static int af9005_fe_read_signal_strength(struct dvb_frontend *fe,
 511                                           u16 * strength)
 512 {
 513         struct af9005_fe_state *state = fe->demodulator_priv;
 514         int ret;
 515         u8 if_gain, rf_gain;
 516
 517         if (fe->ops.tuner_ops.release == NULL)
 518                 return -ENODEV;
 519         ret =
 520             af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain,
 521                                       &rf_gain);
 522         if (ret)
 523                 return ret;
 524         ret =
 525             af9005_read_ofdm_register(state->d, xd_r_reg_aagc_if_gain,
 526                                       &if_gain);
 527         if (ret)
 528                 return ret;
 529         /* this value has no real meaning, but i don't have the tables that relate
 530            the rf and if gain with the dbm, so I just scale the value */
 531         *strength = (512 - rf_gain - if_gain) << 7;
 532         return 0;
 533 }
 534
 535 static int af9005_fe_read_snr(struct dvb_frontend *fe, u16 * snr)
 536 {
 537         /* the snr can be derived from the ber and the modulation
 538            but I don't think this kind of complex calculations belong
 539            in the driver. I may be wrong.... */
 540         return -ENOSYS;
 541 }
 542
 543 static int af9005_fe_program_cfoe(struct dvb_usb_device *d, u32 bw)
 544 {
 545         u8 temp0, temp1, temp2, temp3, buf[4];
 546         int ret;
 547         u32 NS_coeff1_2048Nu;
 548         u32 NS_coeff1_8191Nu;
 549         u32 NS_coeff1_8192Nu;
 550         u32 NS_coeff1_8193Nu;
 551         u32 NS_coeff2_2k;
 552         u32 NS_coeff2_8k;
 553
 554         switch (bw) {
 555         case 6000000:
 556                 NS_coeff1_2048Nu = 0x2ADB6DC;
 557                 NS_coeff1_8191Nu = 0xAB7313;
 558                 NS_coeff1_8192Nu = 0xAB6DB7;
 559                 NS_coeff1_8193Nu = 0xAB685C;
 560                 NS_coeff2_2k = 0x156DB6E;
 561                 NS_coeff2_8k = 0x55B6DC;
 562                 break;
 563
 564         case 7000000:
 565                 NS_coeff1_2048Nu = 0x3200001;
 566                 NS_coeff1_8191Nu = 0xC80640;
 567                 NS_coeff1_8192Nu = 0xC80000;
 568                 NS_coeff1_8193Nu = 0xC7F9C0;
 569                 NS_coeff2_2k = 0x1900000;
 570                 NS_coeff2_8k = 0x640000;
 571                 break;
 572
 573         case 8000000:
 574                 NS_coeff1_2048Nu = 0x3924926;
 575                 NS_coeff1_8191Nu = 0xE4996E;
 576                 NS_coeff1_8192Nu = 0xE49249;
 577                 NS_coeff1_8193Nu = 0xE48B25;
 578                 NS_coeff2_2k = 0x1C92493;
 579                 NS_coeff2_8k = 0x724925;
 580                 break;
 581         default:
 582                 err("Invalid bandwidth %d.", bw);
 583                 return -EINVAL;
 584         }
 585
 586         /*
 587          *  write NS_coeff1_2048Nu
 588          */
 589
 590         temp0 = (u8) (NS_coeff1_2048Nu & 0x000000FF);
 591         temp1 = (u8) ((NS_coeff1_2048Nu & 0x0000FF00) >> 8);
 592         temp2 = (u8) ((NS_coeff1_2048Nu & 0x00FF0000) >> 16);
 593         temp3 = (u8) ((NS_coeff1_2048Nu & 0x03000000) >> 24);
 594
 595         /*  big endian to make 8051 happy */
 596         buf[0] = temp3;
 597         buf[1] = temp2;
 598         buf[2] = temp1;
 599         buf[3] = temp0;
 600
 601         /*  cfoe_NS_2k_coeff1_25_24 */
 602         ret = af9005_write_ofdm_register(d, 0xAE00, buf[0]);
 603         if (ret)
 604                 return ret;
 605
 606         /*  cfoe_NS_2k_coeff1_23_16 */
 607         ret = af9005_write_ofdm_register(d, 0xAE01, buf[1]);
 608         if (ret)
 609                 return ret;
 610
 611         /*  cfoe_NS_2k_coeff1_15_8 */
 612         ret = af9005_write_ofdm_register(d, 0xAE02, buf[2]);
 613         if (ret)
 614                 return ret;
 615
 616         /*  cfoe_NS_2k_coeff1_7_0 */
 617         ret = af9005_write_ofdm_register(d, 0xAE03, buf[3]);
 618         if (ret)
 619                 return ret;
 620
 621         /*
 622          *  write NS_coeff2_2k
 623          */
 624
 625         temp0 = (u8) ((NS_coeff2_2k & 0x0000003F));
 626         temp1 = (u8) ((NS_coeff2_2k & 0x00003FC0) >> 6);
 627         temp2 = (u8) ((NS_coeff2_2k & 0x003FC000) >> 14);
 628         temp3 = (u8) ((NS_coeff2_2k & 0x01C00000) >> 22);
 629
 630         /*  big endian to make 8051 happy */
 631         buf[0] = temp3;
 632         buf[1] = temp2;
 633         buf[2] = temp1;
 634         buf[3] = temp0;
 635
 636         ret = af9005_write_ofdm_register(d, 0xAE04, buf[0]);
 637         if (ret)
 638                 return ret;
 639
 640         ret = af9005_write_ofdm_register(d, 0xAE05, buf[1]);
 641         if (ret)
 642                 return ret;
 643
 644         ret = af9005_write_ofdm_register(d, 0xAE06, buf[2]);
 645         if (ret)
 646                 return ret;
 647
 648         ret = af9005_write_ofdm_register(d, 0xAE07, buf[3]);
 649         if (ret)
 650                 return ret;
 651
 652         /*
 653          *  write NS_coeff1_8191Nu
 654          */
 655
 656         temp0 = (u8) ((NS_coeff1_8191Nu & 0x000000FF));
 657         temp1 = (u8) ((NS_coeff1_8191Nu & 0x0000FF00) >> 8);
 658         temp2 = (u8) ((NS_coeff1_8191Nu & 0x00FFC000) >> 16);
 659         temp3 = (u8) ((NS_coeff1_8191Nu & 0x03000000) >> 24);
 660
 661         /*  big endian to make 8051 happy */
 662         buf[0] = temp3;
 663         buf[1] = temp2;
 664         buf[2] = temp1;
 665         buf[3] = temp0;
 666
 667         ret = af9005_write_ofdm_register(d, 0xAE08, buf[0]);
 668         if (ret)
 669                 return ret;
 670
 671         ret = af9005_write_ofdm_register(d, 0xAE09, buf[1]);
 672         if (ret)
 673                 return ret;
 674
 675         ret = af9005_write_ofdm_register(d, 0xAE0A, buf[2]);
 676         if (ret)
 677                 return ret;
 678
 679         ret = af9005_write_ofdm_register(d, 0xAE0B, buf[3]);
 680         if (ret)
 681                 return ret;
 682
 683         /*
 684          *  write NS_coeff1_8192Nu
 685          */
 686
 687         temp0 = (u8) (NS_coeff1_8192Nu & 0x000000FF);
 688         temp1 = (u8) ((NS_coeff1_8192Nu & 0x0000FF00) >> 8);
 689         temp2 = (u8) ((NS_coeff1_8192Nu & 0x00FFC000) >> 16);
 690         temp3 = (u8) ((NS_coeff1_8192Nu & 0x03000000) >> 24);
 691
 692         /*  big endian to make 8051 happy */
 693         buf[0] = temp3;
 694         buf[1] = temp2;
 695         buf[2] = temp1;
 696         buf[3] = temp0;
 697
 698         ret = af9005_write_ofdm_register(d, 0xAE0C, buf[0]);
 699         if (ret)
 700                 return ret;
 701
 702         ret = af9005_write_ofdm_register(d, 0xAE0D, buf[1]);
 703         if (ret)
 704                 return ret;
 705
 706         ret = af9005_write_ofdm_register(d, 0xAE0E, buf[2]);
 707         if (ret)
 708                 return ret;
 709
 710         ret = af9005_write_ofdm_register(d, 0xAE0F, buf[3]);
 711         if (ret)
 712                 return ret;
 713
 714         /*
 715          *  write NS_coeff1_8193Nu
 716          */
 717
 718         temp0 = (u8) ((NS_coeff1_8193Nu & 0x000000FF));
 719         temp1 = (u8) ((NS_coeff1_8193Nu & 0x0000FF00) >> 8);
 720         temp2 = (u8) ((NS_coeff1_8193Nu & 0x00FFC000) >> 16);
 721         temp3 = (u8) ((NS_coeff1_8193Nu & 0x03000000) >> 24);
 722
 723         /*  big endian to make 8051 happy */
 724         buf[0] = temp3;
 725         buf[1] = temp2;
 726         buf[2] = temp1;
 727         buf[3] = temp0;
 728
 729         ret = af9005_write_ofdm_register(d, 0xAE10, buf[0]);
 730         if (ret)
 731                 return ret;
 732
 733         ret = af9005_write_ofdm_register(d, 0xAE11, buf[1]);
 734         if (ret)
 735                 return ret;
 736
 737         ret = af9005_write_ofdm_register(d, 0xAE12, buf[2]);
 738         if (ret)
 739                 return ret;
 740
 741         ret = af9005_write_ofdm_register(d, 0xAE13, buf[3]);
 742         if (ret)
 743                 return ret;
 744
 745         /*
 746          *  write NS_coeff2_8k
 747          */
 748
 749         temp0 = (u8) ((NS_coeff2_8k & 0x0000003F));
 750         temp1 = (u8) ((NS_coeff2_8k & 0x00003FC0) >> 6);
 751         temp2 = (u8) ((NS_coeff2_8k & 0x003FC000) >> 14);
 752         temp3 = (u8) ((NS_coeff2_8k & 0x01C00000) >> 22);
 753
 754         /*  big endian to make 8051 happy */
 755         buf[0] = temp3;
 756         buf[1] = temp2;
 757         buf[2] = temp1;
 758         buf[3] = temp0;
 759
 760         ret = af9005_write_ofdm_register(d, 0xAE14, buf[0]);
 761         if (ret)
 762                 return ret;
 763
 764         ret = af9005_write_ofdm_register(d, 0xAE15, buf[1]);
 765         if (ret)
 766                 return ret;
 767
 768         ret = af9005_write_ofdm_register(d, 0xAE16, buf[2]);
 769         if (ret)
 770                 return ret;
 771
 772         ret = af9005_write_ofdm_register(d, 0xAE17, buf[3]);
 773         return ret;
 774
 775 }
 776
 777 static int af9005_fe_select_bw(struct dvb_usb_device *d, u32 bw)
 778 {
 779         u8 temp;
 780         switch (bw) {
 781         case 6000000:
 782                 temp = 0;
 783                 break;
 784         case 7000000:
 785                 temp = 1;
 786                 break;
 787         case 8000000:
 788                 temp = 2;
 789                 break;
 790         default:
 791                 err("Invalid bandwidth %d.", bw);
 792                 return -EINVAL;
 793         }
 794         return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos,
 795                                           reg_bw_len, temp);
 796 }
 797
 798 static int af9005_fe_power(struct dvb_frontend *fe, int on)
 799 {
 800         struct af9005_fe_state *state = fe->demodulator_priv;
 801         u8 temp = on;
 802         int ret;
 803         deb_info("power %s tuner\n", on ? "on" : "off");
 804         ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
 805         return ret;
 806 }
 807
 808 static struct mt2060_config af9005_mt2060_config = {
 809         0xC0
 810 };
 811
 812 static struct qt1010_config af9005_qt1010_config = {
 813         0xC4
 814 };
 815
 816 static int af9005_fe_init(struct dvb_frontend *fe)
 817 {
 818         struct af9005_fe_state *state = fe->demodulator_priv;
 819         struct dvb_usb_adapter *adap = fe->dvb->priv;
 820         int ret, i, scriptlen;
 821         u8 temp, temp0 = 0, temp1 = 0, temp2 = 0;
 822         u8 buf[2];
 823         u16 if1;
 824
 825         deb_info("in af9005_fe_init\n");
 826
 827         /* reset */
 828         deb_info("reset\n");
 829         if ((ret =
 830              af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst_en,
 831                                         4, 1, 0x01)))
 832                 return ret;
 833         if ((ret = af9005_write_ofdm_register(state->d, APO_REG_RESET, 0)))
 834                 return ret;
 835         /* clear ofdm reset */
 836         deb_info("clear ofdm reset\n");
 837         for (i = 0; i < 150; i++) {
 838                 if ((ret =
 839                      af9005_read_ofdm_register(state->d,
 840                                                xd_I2C_reg_ofdm_rst, &temp)))
 841                         return ret;
 842                 if (temp & (regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos))
 843                         break;
 844                 msleep(10);
 845         }
 846         if (i == 150)
 847                 return -ETIMEDOUT;
 848
 849         /*FIXME in the dump
 850            write B200 A9
 851            write xd_g_reg_ofsm_clk 7
 852            read eepr c6 (2)
 853            read eepr c7 (2)
 854            misc ctrl 3 -> 1
 855            read eepr ca (6)
 856            write xd_g_reg_ofsm_clk 0
 857            write B200 a1
 858          */
 859         ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa9);
 860         if (ret)
 861                 return ret;
 862         ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x07);
 863         if (ret)
 864                 return ret;
 865         temp = 0x01;
 866         ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
 867         if (ret)
 868                 return ret;
 869         ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x00);
 870         if (ret)
 871                 return ret;
 872         ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa1);
 873         if (ret)
 874                 return ret;
 875
 876         temp = regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos;
 877         if ((ret =
 878              af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
 879                                         reg_ofdm_rst_pos, reg_ofdm_rst_len, 1)))
 880                 return ret;
 881         ret = af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
 882                                          reg_ofdm_rst_pos, reg_ofdm_rst_len, 0);
 883
 884         if (ret)
 885                 return ret;
 886         /* don't know what register aefc is, but this is what the windows driver does */
 887         ret = af9005_write_ofdm_register(state->d, 0xaefc, 0);
 888         if (ret)
 889                 return ret;
 890
 891         /* set stand alone chip */
 892         deb_info("set stand alone chip\n");
 893         if ((ret =
 894              af9005_write_register_bits(state->d, xd_p_reg_dca_stand_alone,
 895                                         reg_dca_stand_alone_pos,
 896                                         reg_dca_stand_alone_len, 1)))
 897                 return ret;
 898
 899         /* set dca upper & lower chip */
 900         deb_info("set dca upper & lower chip\n");
 901         if ((ret =
 902              af9005_write_register_bits(state->d, xd_p_reg_dca_upper_chip,
 903                                         reg_dca_upper_chip_pos,
 904                                         reg_dca_upper_chip_len, 0)))
 905                 return ret;
 906         if ((ret =
 907              af9005_write_register_bits(state->d, xd_p_reg_dca_lower_chip,
 908                                         reg_dca_lower_chip_pos,
 909                                         reg_dca_lower_chip_len, 0)))
 910                 return ret;
 911
 912         /* set 2wire master clock to 0x14 (for 60KHz) */
 913         deb_info("set 2wire master clock to 0x14 (for 60KHz)\n");
 914         if ((ret =
 915              af9005_write_ofdm_register(state->d, xd_I2C_i2c_m_period, 0x14)))
 916                 return ret;
 917
 918         /* clear dca enable chip */
 919         deb_info("clear dca enable chip\n");
 920         if ((ret =
 921              af9005_write_register_bits(state->d, xd_p_reg_dca_en,
 922                                         reg_dca_en_pos, reg_dca_en_len, 0)))
 923                 return ret;
 924         /* FIXME these are register bits, but I don't know which ones */
 925         ret = af9005_write_ofdm_register(state->d, 0xa16c, 1);
 926         if (ret)
 927                 return ret;
 928         ret = af9005_write_ofdm_register(state->d, 0xa3c1, 0);
 929         if (ret)
 930                 return ret;
 931
 932         /* init other parameters: program cfoe and select bandwidth */
 933         deb_info("program cfoe\n");
 934         ret = af9005_fe_program_cfoe(state->d, 6000000);
 935         if (ret)
 936                 return ret;
 937         /* set read-update bit for modulation */
 938         deb_info("set read-update bit for modulation\n");
 939         if ((ret =
 940              af9005_write_register_bits(state->d, xd_p_reg_feq_read_update,
 941                                         reg_feq_read_update_pos,
 942                                         reg_feq_read_update_len, 1)))
 943                 return ret;
 944
 945         /* sample code has a set MPEG TS code here
 946            but sniffing reveals that it doesn't do it */
 947
 948         /* set read-update bit to 1 for DCA modulation */
 949         deb_info("set read-update bit 1 for DCA modulation\n");
 950         if ((ret =
 951              af9005_write_register_bits(state->d, xd_p_reg_dca_read_update,
 952                                         reg_dca_read_update_pos,
 953                                         reg_dca_read_update_len, 1)))
 954                 return ret;
 955
 956         /* enable fec monitor */
 957         deb_info("enable fec monitor\n");
 958         if ((ret =
 959              af9005_write_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en,
 960                                         fec_vtb_rsd_mon_en_pos,
 961                                         fec_vtb_rsd_mon_en_len, 1)))
 962                 return ret;
 963
 964         /* FIXME should be register bits, I don't know which ones */
 965         ret = af9005_write_ofdm_register(state->d, 0xa601, 0);
 966
 967         /* set api_retrain_never_freeze */
 968         deb_info("set api_retrain_never_freeze\n");
 969         if ((ret = af9005_write_ofdm_register(state->d, 0xaefb, 0x01)))
 970                 return ret;
 971
 972         /* load init script */
 973         deb_info("load init script\n");
 974         scriptlen = sizeof(script) / sizeof(RegDesc);
 975         for (i = 0; i < scriptlen; i++) {
 976                 if ((ret =
 977                      af9005_write_register_bits(state->d, script[i].reg,
 978                                                 script[i].pos,
 979                                                 script[i].len, script[i].val)))
 980                         return ret;
 981                 /* save 3 bytes of original fcw */
 982                 if (script[i].reg == 0xae18)
 983                         temp2 = script[i].val;
 984                 if (script[i].reg == 0xae19)
 985                         temp1 = script[i].val;
 986                 if (script[i].reg == 0xae1a)
 987                         temp0 = script[i].val;
 988
 989                 /* save original unplug threshold */
 990                 if (script[i].reg == xd_p_reg_unplug_th)
 991                         state->original_if_unplug_th = script[i].val;
 992                 if (script[i].reg == xd_p_reg_unplug_rf_gain_th)
 993                         state->original_rf_unplug_th = script[i].val;
 994                 if (script[i].reg == xd_p_reg_unplug_dtop_if_gain_th)
 995                         state->original_dtop_if_unplug_th = script[i].val;
 996                 if (script[i].reg == xd_p_reg_unplug_dtop_rf_gain_th)
 997                         state->original_dtop_rf_unplug_th = script[i].val;
 998
 999         }
1000         state->original_fcw =
1001             ((u32) temp2 << 16) + ((u32) temp1 << 8) + (u32) temp0;
1002
1003
1004         /* save original TOPs */
1005         deb_info("save original TOPs\n");
1006
1007         /*  RF TOP */
1008         ret =
1009             af9005_read_word_agc(state->d,
1010                                  xd_p_reg_aagc_rf_top_numerator_9_8,
1011                                  xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
1012                                  &state->original_rf_top);
1013         if (ret)
1014                 return ret;
1015
1016         /*  IF TOP */
1017         ret =
1018             af9005_read_word_agc(state->d,
1019                                  xd_p_reg_aagc_if_top_numerator_9_8,
1020                                  xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1021                                  &state->original_if_top);
1022         if (ret)
1023                 return ret;
1024
1025         /*  ACI 0 IF TOP */
1026         ret =
1027             af9005_read_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1028                                  &state->original_aci0_if_top);
1029         if (ret)
1030                 return ret;
1031
1032         /*  ACI 1 IF TOP */
1033         ret =
1034             af9005_read_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1035                                  &state->original_aci1_if_top);
1036         if (ret)
1037                 return ret;
1038
1039         /* attach tuner and init */
1040         if (fe->ops.tuner_ops.release == NULL) {
1041                 /* read tuner and board id from eeprom */
1042                 ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2);
1043                 if (ret) {
1044                         err("Impossible to read EEPROM\n");
1045                         return ret;
1046                 }
1047                 deb_info("Tuner id %d, board id %d\n", buf[0], buf[1]);
1048                 switch (buf[0]) {
1049                 case 2: /* MT2060 */
1050                         /* read if1 from eeprom */
1051                         ret = af9005_read_eeprom(adap->dev, 0xc8, buf, 2);
1052                         if (ret) {
1053                                 err("Impossible to read EEPROM\n");
1054                                 return ret;
1055                         }
1056                         if1 = (u16) (buf[0] << 8) + buf[1];
1057                         if (dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap,
1058                                          &af9005_mt2060_config, if1) == NULL) {
1059                                 deb_info("MT2060 attach failed\n");
1060                                 return -ENODEV;
1061                         }
1062                         break;
1063                 case 3: /* QT1010 */
1064                 case 9: /* QT1010B */
1065                         if (dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap,
1066                                         &af9005_qt1010_config) ==NULL) {
1067                                 deb_info("QT1010 attach failed\n");
1068                                 return -ENODEV;
1069                         }
1070                         break;
1071                 default:
1072                         err("Unsupported tuner type %d", buf[0]);
1073                         return -ENODEV;
1074                 }
1075                 ret = fe->ops.tuner_ops.init(fe);
1076                 if (ret)
1077                         return ret;
1078         }
1079
1080         deb_info("profit!\n");
1081         return 0;
1082 }
1083
1084 static int af9005_fe_sleep(struct dvb_frontend *fe)
1085 {
1086         return af9005_fe_power(fe, 0);
1087 }
1088
1089 static int af9005_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
1090 {
1091         struct af9005_fe_state *state = fe->demodulator_priv;
1092
1093         if (acquire) {
1094                 state->opened++;
1095         } else {
1096
1097                 state->opened--;
1098                 if (!state->opened)
1099                         af9005_led_control(state->d, 0);
1100         }
1101         return 0;
1102 }
1103
1104 static int af9005_fe_set_frontend(struct dvb_frontend *fe)
1105 {
1106         struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
1107         struct af9005_fe_state *state = fe->demodulator_priv;
1108         int ret;
1109         u8 temp, temp0, temp1, temp2;
1110
1111         deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency,
1112                  fep->bandwidth_hz);
1113         if (fe->ops.tuner_ops.release == NULL) {
1114                 err("Tuner not attached");
1115                 return -ENODEV;
1116         }
1117
1118         deb_info("turn off led\n");
1119         /* not in the log */
1120         ret = af9005_led_control(state->d, 0);
1121         if (ret)
1122                 return ret;
1123         /* not sure about the bits */
1124         ret = af9005_write_register_bits(state->d, XD_MP2IF_MISC, 2, 1, 0);
1125         if (ret)
1126                 return ret;
1127
1128         /* set FCW to default value */
1129         deb_info("set FCW to default value\n");
1130         temp0 = (u8) (state->original_fcw & 0x000000ff);
1131         temp1 = (u8) ((state->original_fcw & 0x0000ff00) >> 8);
1132         temp2 = (u8) ((state->original_fcw & 0x00ff0000) >> 16);
1133         ret = af9005_write_ofdm_register(state->d, 0xae1a, temp0);
1134         if (ret)
1135                 return ret;
1136         ret = af9005_write_ofdm_register(state->d, 0xae19, temp1);
1137         if (ret)
1138                 return ret;
1139         ret = af9005_write_ofdm_register(state->d, 0xae18, temp2);
1140         if (ret)
1141                 return ret;
1142
1143         /* restore original TOPs */
1144         deb_info("restore original TOPs\n");
1145         ret =
1146             af9005_write_word_agc(state->d,
1147                                   xd_p_reg_aagc_rf_top_numerator_9_8,
1148                                   xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
1149                                   state->original_rf_top);
1150         if (ret)
1151                 return ret;
1152         ret =
1153             af9005_write_word_agc(state->d,
1154                                   xd_p_reg_aagc_if_top_numerator_9_8,
1155                                   xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1156                                   state->original_if_top);
1157         if (ret)
1158                 return ret;
1159         ret =
1160             af9005_write_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1161                                   state->original_aci0_if_top);
1162         if (ret)
1163                 return ret;
1164         ret =
1165             af9005_write_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1166                                   state->original_aci1_if_top);
1167         if (ret)
1168                 return ret;
1169
1170         /* select bandwidth */
1171         deb_info("select bandwidth");
1172         ret = af9005_fe_select_bw(state->d, fep->bandwidth_hz);
1173         if (ret)
1174                 return ret;
1175         ret = af9005_fe_program_cfoe(state->d, fep->bandwidth_hz);
1176         if (ret)
1177                 return ret;
1178
1179         /* clear easy mode flag */
1180         deb_info("clear easy mode flag\n");
1181         ret = af9005_write_ofdm_register(state->d, 0xaefd, 0);
1182         if (ret)
1183                 return ret;
1184
1185         /* set unplug threshold to original value */
1186         deb_info("set unplug threshold to original value\n");
1187         ret =
1188             af9005_write_ofdm_register(state->d, xd_p_reg_unplug_th,
1189                                        state->original_if_unplug_th);
1190         if (ret)
1191                 return ret;
1192         /* set tuner */
1193         deb_info("set tuner\n");
1194         ret = fe->ops.tuner_ops.set_params(fe);
1195         if (ret)
1196                 return ret;
1197
1198         /* trigger ofsm */
1199         deb_info("trigger ofsm\n");
1200         temp = 0;
1201         ret = af9005_write_tuner_registers(state->d, 0xffff, &temp, 1);
1202         if (ret)
1203                 return ret;
1204
1205         /* clear retrain and freeze flag */
1206         deb_info("clear retrain and freeze flag\n");
1207         ret =
1208             af9005_write_register_bits(state->d,
1209                                        xd_p_reg_api_retrain_request,
1210                                        reg_api_retrain_request_pos, 2, 0);
1211         if (ret)
1212                 return ret;
1213
1214         /* reset pre viterbi and post viterbi registers and statistics */
1215         af9005_reset_pre_viterbi(fe);
1216         af9005_reset_post_viterbi(fe);
1217         state->pre_vit_error_count = 0;
1218         state->pre_vit_bit_count = 0;
1219         state->ber = 0;
1220         state->post_vit_error_count = 0;
1221         /* state->unc = 0; commented out since it should be ever increasing */
1222         state->abort_count = 0;
1223
1224         state->next_status_check = jiffies;
1225         state->strong = -1;
1226
1227         return 0;
1228 }
1229
1230 static int af9005_fe_get_frontend(struct dvb_frontend *fe)
1231 {
1232         struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
1233         struct af9005_fe_state *state = fe->demodulator_priv;
1234         int ret;
1235         u8 temp;
1236
1237         /* mode */
1238         ret =
1239             af9005_read_register_bits(state->d, xd_g_reg_tpsd_const,
1240                                       reg_tpsd_const_pos, reg_tpsd_const_len,
1241                                       &temp);
1242         if (ret)
1243                 return ret;
1244         deb_info("===== fe_get_frontend_legacy = =============\n");
1245         deb_info("CONSTELLATION ");
1246         switch (temp) {
1247         case 0:
1248                 fep->modulation = QPSK;
1249                 deb_info("QPSK\n");
1250                 break;
1251         case 1:
1252                 fep->modulation = QAM_16;
1253                 deb_info("QAM_16\n");
1254                 break;
1255         case 2:
1256                 fep->modulation = QAM_64;
1257                 deb_info("QAM_64\n");
1258                 break;
1259         }
1260
1261         /* tps hierarchy and alpha value */
1262         ret =
1263             af9005_read_register_bits(state->d, xd_g_reg_tpsd_hier,
1264                                       reg_tpsd_hier_pos, reg_tpsd_hier_len,
1265                                       &temp);
1266         if (ret)
1267                 return ret;
1268         deb_info("HIERARCHY ");
1269         switch (temp) {
1270         case 0:
1271                 fep->hierarchy = HIERARCHY_NONE;
1272                 deb_info("NONE\n");
1273                 break;
1274         case 1:
1275                 fep->hierarchy = HIERARCHY_1;
1276                 deb_info("1\n");
1277                 break;
1278         case 2:
1279                 fep->hierarchy = HIERARCHY_2;
1280                 deb_info("2\n");
1281                 break;
1282         case 3:
1283                 fep->hierarchy = HIERARCHY_4;
1284                 deb_info("4\n");
1285                 break;
1286         }
1287
1288         /*  high/low priority     */
1289         ret =
1290             af9005_read_register_bits(state->d, xd_g_reg_dec_pri,
1291                                       reg_dec_pri_pos, reg_dec_pri_len, &temp);
1292         if (ret)
1293                 return ret;
1294         /* if temp is set = high priority */
1295         deb_info("PRIORITY %s\n", temp ? "high" : "low");
1296
1297         /* high coderate */
1298         ret =
1299             af9005_read_register_bits(state->d, xd_g_reg_tpsd_hpcr,
1300                                       reg_tpsd_hpcr_pos, reg_tpsd_hpcr_len,
1301                                       &temp);
1302         if (ret)
1303                 return ret;
1304         deb_info("CODERATE HP ");
1305         switch (temp) {
1306         case 0:
1307                 fep->code_rate_HP = FEC_1_2;
1308                 deb_info("FEC_1_2\n");
1309                 break;
1310         case 1:
1311                 fep->code_rate_HP = FEC_2_3;
1312                 deb_info("FEC_2_3\n");
1313                 break;
1314         case 2:
1315                 fep->code_rate_HP = FEC_3_4;
1316                 deb_info("FEC_3_4\n");
1317                 break;
1318         case 3:
1319                 fep->code_rate_HP = FEC_5_6;
1320                 deb_info("FEC_5_6\n");
1321                 break;
1322         case 4:
1323                 fep->code_rate_HP = FEC_7_8;
1324                 deb_info("FEC_7_8\n");
1325                 break;
1326         }
1327
1328         /* low coderate */
1329         ret =
1330             af9005_read_register_bits(state->d, xd_g_reg_tpsd_lpcr,
1331                                       reg_tpsd_lpcr_pos, reg_tpsd_lpcr_len,
1332                                       &temp);
1333         if (ret)
1334                 return ret;
1335         deb_info("CODERATE LP ");
1336         switch (temp) {
1337         case 0:
1338                 fep->code_rate_LP = FEC_1_2;
1339                 deb_info("FEC_1_2\n");
1340                 break;
1341         case 1:
1342                 fep->code_rate_LP = FEC_2_3;
1343                 deb_info("FEC_2_3\n");
1344                 break;
1345         case 2:
1346                 fep->code_rate_LP = FEC_3_4;
1347                 deb_info("FEC_3_4\n");
1348                 break;
1349         case 3:
1350                 fep->code_rate_LP = FEC_5_6;
1351                 deb_info("FEC_5_6\n");
1352                 break;
1353         case 4:
1354                 fep->code_rate_LP = FEC_7_8;
1355                 deb_info("FEC_7_8\n");
1356                 break;
1357         }
1358
1359         /* guard interval */
1360         ret =
1361             af9005_read_register_bits(state->d, xd_g_reg_tpsd_gi,
1362                                       reg_tpsd_gi_pos, reg_tpsd_gi_len, &temp);
1363         if (ret)
1364                 return ret;
1365         deb_info("GUARD INTERVAL ");
1366         switch (temp) {
1367         case 0:
1368                 fep->guard_interval = GUARD_INTERVAL_1_32;
1369                 deb_info("1_32\n");
1370                 break;
1371         case 1:
1372                 fep->guard_interval = GUARD_INTERVAL_1_16;
1373                 deb_info("1_16\n");
1374                 break;
1375         case 2:
1376                 fep->guard_interval = GUARD_INTERVAL_1_8;
1377                 deb_info("1_8\n");
1378                 break;
1379         case 3:
1380                 fep->guard_interval = GUARD_INTERVAL_1_4;
1381                 deb_info("1_4\n");
1382                 break;
1383         }
1384
1385         /* fft */
1386         ret =
1387             af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod,
1388                                       reg_tpsd_txmod_pos, reg_tpsd_txmod_len,
1389                                       &temp);
1390         if (ret)
1391                 return ret;
1392         deb_info("TRANSMISSION MODE ");
1393         switch (temp) {
1394         case 0:
1395                 fep->transmission_mode = TRANSMISSION_MODE_2K;
1396                 deb_info("2K\n");
1397                 break;
1398         case 1:
1399                 fep->transmission_mode = TRANSMISSION_MODE_8K;
1400                 deb_info("8K\n");
1401                 break;
1402         }
1403
1404         /* bandwidth      */
1405         ret =
1406             af9005_read_register_bits(state->d, xd_g_reg_bw, reg_bw_pos,
1407                                       reg_bw_len, &temp);
1408         deb_info("BANDWIDTH ");
1409         switch (temp) {
1410         case 0:
1411                 fep->bandwidth_hz = 6000000;
1412                 deb_info("6\n");
1413                 break;
1414         case 1:
1415                 fep->bandwidth_hz = 7000000;
1416                 deb_info("7\n");
1417                 break;
1418         case 2:
1419                 fep->bandwidth_hz = 8000000;
1420                 deb_info("8\n");
1421                 break;
1422         }
1423         return 0;
1424 }
1425
1426 static void af9005_fe_release(struct dvb_frontend *fe)
1427 {
1428         struct af9005_fe_state *state =
1429             (struct af9005_fe_state *)fe->demodulator_priv;
1430         kfree(state);
1431 }
1432
1433 static struct dvb_frontend_ops af9005_fe_ops;
1434
1435 struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d)
1436 {
1437         struct af9005_fe_state *state = NULL;
1438
1439         /* allocate memory for the internal state */
1440         state = kzalloc(sizeof(struct af9005_fe_state), GFP_KERNEL);
1441         if (state == NULL)
1442                 goto error;
1443
1444         deb_info("attaching frontend af9005\n");
1445
1446         state->d = d;
1447         state->opened = 0;
1448
1449         memcpy(&state->frontend.ops, &af9005_fe_ops,
1450                sizeof(struct dvb_frontend_ops));
1451         state->frontend.demodulator_priv = state;
1452
1453         return &state->frontend;
1454       error:
1455         return NULL;
1456 }
1457
1458 static struct dvb_frontend_ops af9005_fe_ops = {
1459         .delsys = { SYS_DVBT },
1460         .info = {
1461                  .name = "AF9005 USB DVB-T",
1462                  .frequency_min = 44250000,
1463                  .frequency_max = 867250000,
1464                  .frequency_stepsize = 250000,
1465                  .caps = FE_CAN_INVERSION_AUTO |
1466                  FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1467                  FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1468                  FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1469                  FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1470                  FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER |
1471                  FE_CAN_HIERARCHY_AUTO,
1472                  },
1473
1474         .release = af9005_fe_release,
1475
1476         .init = af9005_fe_init,
1477         .sleep = af9005_fe_sleep,
1478         .ts_bus_ctrl = af9005_ts_bus_ctrl,
1479
1480         .set_frontend = af9005_fe_set_frontend,
1481         .get_frontend = af9005_fe_get_frontend,
1482
1483         .read_status = af9005_fe_read_status,
1484         .read_ber = af9005_fe_read_ber,
1485         .read_signal_strength = af9005_fe_read_signal_strength,
1486         .read_snr = af9005_fe_read_snr,
1487         .read_ucblocks = af9005_fe_read_unc_blocks,
1488 };