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         fe_status_t 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, fe_status_t * stat)
 441 {
 442         struct af9005_fe_state *state = fe->demodulator_priv;
 443         u8 temp;
 444         int ret;
 445
 446         if (fe->ops.tuner_ops.release == NULL)
 447                 return -ENODEV;
 448
 449         *stat = 0;
 450         ret = af9005_read_register_bits(state->d, xd_p_agc_lock,
 451                                         agc_lock_pos, agc_lock_len, &temp);
 452         if (ret)
 453                 return ret;
 454         if (temp)
 455                 *stat |= FE_HAS_SIGNAL;
 456
 457         ret = af9005_read_register_bits(state->d, xd_p_fd_tpsd_lock,
 458                                         fd_tpsd_lock_pos, fd_tpsd_lock_len,
 459                                         &temp);
 460         if (ret)
 461                 return ret;
 462         if (temp)
 463                 *stat |= FE_HAS_CARRIER;
 464
 465         ret = af9005_read_register_bits(state->d,
 466                                         xd_r_mp2if_sync_byte_locked,
 467                                         mp2if_sync_byte_locked_pos,
 468                                         mp2if_sync_byte_locked_pos, &temp);
 469         if (ret)
 470                 return ret;
 471         if (temp)
 472                 *stat |= FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_LOCK;
 473         if (state->opened)
 474                 af9005_led_control(state->d, *stat & FE_HAS_LOCK);
 475
 476         ret =
 477             af9005_read_register_bits(state->d, xd_p_reg_strong_sginal_detected,
 478                                       reg_strong_sginal_detected_pos,
 479                                       reg_strong_sginal_detected_len, &temp);
 480         if (ret)
 481                 return ret;
 482         if (temp != state->strong) {
 483                 deb_info("adjust for strong signal %d\n", temp);
 484                         state->strong = temp;
 485         }
 486         return 0;
 487 }
 488
 489 static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber)
 490 {
 491         struct af9005_fe_state *state = fe->demodulator_priv;
 492         if (fe->ops.tuner_ops.release  == NULL)
 493                 return -ENODEV;
 494         af9005_fe_refresh_state(fe);
 495         *ber = state->ber;
 496         return 0;
 497 }
 498
 499 static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc)
 500 {
 501         struct af9005_fe_state *state = fe->demodulator_priv;
 502         if (fe->ops.tuner_ops.release == NULL)
 503                 return -ENODEV;
 504         af9005_fe_refresh_state(fe);
 505         *unc = state->unc;
 506         return 0;
 507 }
 508
 509 static int af9005_fe_read_signal_strength(struct dvb_frontend *fe,
 510                                           u16 * strength)
 511 {
 512         struct af9005_fe_state *state = fe->demodulator_priv;
 513         int ret;
 514         u8 if_gain, rf_gain;
 515
 516         if (fe->ops.tuner_ops.release == NULL)
 517                 return -ENODEV;
 518         ret =
 519             af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain,
 520                                       &rf_gain);
 521         if (ret)
 522                 return ret;
 523         ret =
 524             af9005_read_ofdm_register(state->d, xd_r_reg_aagc_if_gain,
 525                                       &if_gain);
 526         if (ret)
 527                 return ret;
 528         /* this value has no real meaning, but i don't have the tables that relate
 529            the rf and if gain with the dbm, so I just scale the value */
 530         *strength = (512 - rf_gain - if_gain) << 7;
 531         return 0;
 532 }
 533
 534 static int af9005_fe_read_snr(struct dvb_frontend *fe, u16 * snr)
 535 {
 536         /* the snr can be derived from the ber and the modulation
 537            but I don't think this kind of complex calculations belong
 538            in the driver. I may be wrong.... */
 539         return -ENOSYS;
 540 }
 541
 542 static int af9005_fe_program_cfoe(struct dvb_usb_device *d, u32 bw)
 543 {
 544         u8 temp0, temp1, temp2, temp3, buf[4];
 545         int ret;
 546         u32 NS_coeff1_2048Nu;
 547         u32 NS_coeff1_8191Nu;
 548         u32 NS_coeff1_8192Nu;
 549         u32 NS_coeff1_8193Nu;
 550         u32 NS_coeff2_2k;
 551         u32 NS_coeff2_8k;
 552
 553         switch (bw) {
 554         case 6000000:
 555                 NS_coeff1_2048Nu = 0x2ADB6DC;
 556                 NS_coeff1_8191Nu = 0xAB7313;
 557                 NS_coeff1_8192Nu = 0xAB6DB7;
 558                 NS_coeff1_8193Nu = 0xAB685C;
 559                 NS_coeff2_2k = 0x156DB6E;
 560                 NS_coeff2_8k = 0x55B6DC;
 561                 break;
 562
 563         case 7000000:
 564                 NS_coeff1_2048Nu = 0x3200001;
 565                 NS_coeff1_8191Nu = 0xC80640;
 566                 NS_coeff1_8192Nu = 0xC80000;
 567                 NS_coeff1_8193Nu = 0xC7F9C0;
 568                 NS_coeff2_2k = 0x1900000;
 569                 NS_coeff2_8k = 0x640000;
 570                 break;
 571
 572         case 8000000:
 573                 NS_coeff1_2048Nu = 0x3924926;
 574                 NS_coeff1_8191Nu = 0xE4996E;
 575                 NS_coeff1_8192Nu = 0xE49249;
 576                 NS_coeff1_8193Nu = 0xE48B25;
 577                 NS_coeff2_2k = 0x1C92493;
 578                 NS_coeff2_8k = 0x724925;
 579                 break;
 580         default:
 581                 err("Invalid bandwidth %d.", bw);
 582                 return -EINVAL;
 583         }
 584
 585         /*
 586          *  write NS_coeff1_2048Nu
 587          */
 588
 589         temp0 = (u8) (NS_coeff1_2048Nu & 0x000000FF);
 590         temp1 = (u8) ((NS_coeff1_2048Nu & 0x0000FF00) >> 8);
 591         temp2 = (u8) ((NS_coeff1_2048Nu & 0x00FF0000) >> 16);
 592         temp3 = (u8) ((NS_coeff1_2048Nu & 0x03000000) >> 24);
 593
 594         /*  big endian to make 8051 happy */
 595         buf[0] = temp3;
 596         buf[1] = temp2;
 597         buf[2] = temp1;
 598         buf[3] = temp0;
 599
 600         /*  cfoe_NS_2k_coeff1_25_24 */
 601         ret = af9005_write_ofdm_register(d, 0xAE00, buf[0]);
 602         if (ret)
 603                 return ret;
 604
 605         /*  cfoe_NS_2k_coeff1_23_16 */
 606         ret = af9005_write_ofdm_register(d, 0xAE01, buf[1]);
 607         if (ret)
 608                 return ret;
 609
 610         /*  cfoe_NS_2k_coeff1_15_8 */
 611         ret = af9005_write_ofdm_register(d, 0xAE02, buf[2]);
 612         if (ret)
 613                 return ret;
 614
 615         /*  cfoe_NS_2k_coeff1_7_0 */
 616         ret = af9005_write_ofdm_register(d, 0xAE03, buf[3]);
 617         if (ret)
 618                 return ret;
 619
 620         /*
 621          *  write NS_coeff2_2k
 622          */
 623
 624         temp0 = (u8) ((NS_coeff2_2k & 0x0000003F));
 625         temp1 = (u8) ((NS_coeff2_2k & 0x00003FC0) >> 6);
 626         temp2 = (u8) ((NS_coeff2_2k & 0x003FC000) >> 14);
 627         temp3 = (u8) ((NS_coeff2_2k & 0x01C00000) >> 22);
 628
 629         /*  big endian to make 8051 happy */
 630         buf[0] = temp3;
 631         buf[1] = temp2;
 632         buf[2] = temp1;
 633         buf[3] = temp0;
 634
 635         ret = af9005_write_ofdm_register(d, 0xAE04, buf[0]);
 636         if (ret)
 637                 return ret;
 638
 639         ret = af9005_write_ofdm_register(d, 0xAE05, buf[1]);
 640         if (ret)
 641                 return ret;
 642
 643         ret = af9005_write_ofdm_register(d, 0xAE06, buf[2]);
 644         if (ret)
 645                 return ret;
 646
 647         ret = af9005_write_ofdm_register(d, 0xAE07, buf[3]);
 648         if (ret)
 649                 return ret;
 650
 651         /*
 652          *  write NS_coeff1_8191Nu
 653          */
 654
 655         temp0 = (u8) ((NS_coeff1_8191Nu & 0x000000FF));
 656         temp1 = (u8) ((NS_coeff1_8191Nu & 0x0000FF00) >> 8);
 657         temp2 = (u8) ((NS_coeff1_8191Nu & 0x00FFC000) >> 16);
 658         temp3 = (u8) ((NS_coeff1_8191Nu & 0x03000000) >> 24);
 659
 660         /*  big endian to make 8051 happy */
 661         buf[0] = temp3;
 662         buf[1] = temp2;
 663         buf[2] = temp1;
 664         buf[3] = temp0;
 665
 666         ret = af9005_write_ofdm_register(d, 0xAE08, buf[0]);
 667         if (ret)
 668                 return ret;
 669
 670         ret = af9005_write_ofdm_register(d, 0xAE09, buf[1]);
 671         if (ret)
 672                 return ret;
 673
 674         ret = af9005_write_ofdm_register(d, 0xAE0A, buf[2]);
 675         if (ret)
 676                 return ret;
 677
 678         ret = af9005_write_ofdm_register(d, 0xAE0B, buf[3]);
 679         if (ret)
 680                 return ret;
 681
 682         /*
 683          *  write NS_coeff1_8192Nu
 684          */
 685
 686         temp0 = (u8) (NS_coeff1_8192Nu & 0x000000FF);
 687         temp1 = (u8) ((NS_coeff1_8192Nu & 0x0000FF00) >> 8);
 688         temp2 = (u8) ((NS_coeff1_8192Nu & 0x00FFC000) >> 16);
 689         temp3 = (u8) ((NS_coeff1_8192Nu & 0x03000000) >> 24);
 690
 691         /*  big endian to make 8051 happy */
 692         buf[0] = temp3;
 693         buf[1] = temp2;
 694         buf[2] = temp1;
 695         buf[3] = temp0;
 696
 697         ret = af9005_write_ofdm_register(d, 0xAE0C, buf[0]);
 698         if (ret)
 699                 return ret;
 700
 701         ret = af9005_write_ofdm_register(d, 0xAE0D, buf[1]);
 702         if (ret)
 703                 return ret;
 704
 705         ret = af9005_write_ofdm_register(d, 0xAE0E, buf[2]);
 706         if (ret)
 707                 return ret;
 708
 709         ret = af9005_write_ofdm_register(d, 0xAE0F, buf[3]);
 710         if (ret)
 711                 return ret;
 712
 713         /*
 714          *  write NS_coeff1_8193Nu
 715          */
 716
 717         temp0 = (u8) ((NS_coeff1_8193Nu & 0x000000FF));
 718         temp1 = (u8) ((NS_coeff1_8193Nu & 0x0000FF00) >> 8);
 719         temp2 = (u8) ((NS_coeff1_8193Nu & 0x00FFC000) >> 16);
 720         temp3 = (u8) ((NS_coeff1_8193Nu & 0x03000000) >> 24);
 721
 722         /*  big endian to make 8051 happy */
 723         buf[0] = temp3;
 724         buf[1] = temp2;
 725         buf[2] = temp1;
 726         buf[3] = temp0;
 727
 728         ret = af9005_write_ofdm_register(d, 0xAE10, buf[0]);
 729         if (ret)
 730                 return ret;
 731
 732         ret = af9005_write_ofdm_register(d, 0xAE11, buf[1]);
 733         if (ret)
 734                 return ret;
 735
 736         ret = af9005_write_ofdm_register(d, 0xAE12, buf[2]);
 737         if (ret)
 738                 return ret;
 739
 740         ret = af9005_write_ofdm_register(d, 0xAE13, buf[3]);
 741         if (ret)
 742                 return ret;
 743
 744         /*
 745          *  write NS_coeff2_8k
 746          */
 747
 748         temp0 = (u8) ((NS_coeff2_8k & 0x0000003F));
 749         temp1 = (u8) ((NS_coeff2_8k & 0x00003FC0) >> 6);
 750         temp2 = (u8) ((NS_coeff2_8k & 0x003FC000) >> 14);
 751         temp3 = (u8) ((NS_coeff2_8k & 0x01C00000) >> 22);
 752
 753         /*  big endian to make 8051 happy */
 754         buf[0] = temp3;
 755         buf[1] = temp2;
 756         buf[2] = temp1;
 757         buf[3] = temp0;
 758
 759         ret = af9005_write_ofdm_register(d, 0xAE14, buf[0]);
 760         if (ret)
 761                 return ret;
 762
 763         ret = af9005_write_ofdm_register(d, 0xAE15, buf[1]);
 764         if (ret)
 765                 return ret;
 766
 767         ret = af9005_write_ofdm_register(d, 0xAE16, buf[2]);
 768         if (ret)
 769                 return ret;
 770
 771         ret = af9005_write_ofdm_register(d, 0xAE17, buf[3]);
 772         return ret;
 773
 774 }
 775
 776 static int af9005_fe_select_bw(struct dvb_usb_device *d, u32 bw)
 777 {
 778         u8 temp;
 779         switch (bw) {
 780         case 6000000:
 781                 temp = 0;
 782                 break;
 783         case 7000000:
 784                 temp = 1;
 785                 break;
 786         case 8000000:
 787                 temp = 2;
 788                 break;
 789         default:
 790                 err("Invalid bandwidth %d.", bw);
 791                 return -EINVAL;
 792         }
 793         return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos,
 794                                           reg_bw_len, temp);
 795 }
 796
 797 static int af9005_fe_power(struct dvb_frontend *fe, int on)
 798 {
 799         struct af9005_fe_state *state = fe->demodulator_priv;
 800         u8 temp = on;
 801         int ret;
 802         deb_info("power %s tuner\n", on ? "on" : "off");
 803         ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
 804         return ret;
 805 }
 806
 807 static struct mt2060_config af9005_mt2060_config = {
 808         0xC0
 809 };
 810
 811 static struct qt1010_config af9005_qt1010_config = {
 812         0xC4
 813 };
 814
 815 static int af9005_fe_init(struct dvb_frontend *fe)
 816 {
 817         struct af9005_fe_state *state = fe->demodulator_priv;
 818         struct dvb_usb_adapter *adap = fe->dvb->priv;
 819         int ret, i, scriptlen;
 820         u8 temp, temp0 = 0, temp1 = 0, temp2 = 0;
 821         u8 buf[2];
 822         u16 if1;
 823
 824         deb_info("in af9005_fe_init\n");
 825
 826         /* reset */
 827         deb_info("reset\n");
 828         if ((ret =
 829              af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst_en,
 830                                         4, 1, 0x01)))
 831                 return ret;
 832         if ((ret = af9005_write_ofdm_register(state->d, APO_REG_RESET, 0)))
 833                 return ret;
 834         /* clear ofdm reset */
 835         deb_info("clear ofdm reset\n");
 836         for (i = 0; i < 150; i++) {
 837                 if ((ret =
 838                      af9005_read_ofdm_register(state->d,
 839                                                xd_I2C_reg_ofdm_rst, &temp)))
 840                         return ret;
 841                 if (temp & (regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos))
 842                         break;
 843                 msleep(10);
 844         }
 845         if (i == 150)
 846                 return -ETIMEDOUT;
 847
 848         /*FIXME in the dump
 849            write B200 A9
 850            write xd_g_reg_ofsm_clk 7
 851            read eepr c6 (2)
 852            read eepr c7 (2)
 853            misc ctrl 3 -> 1
 854            read eepr ca (6)
 855            write xd_g_reg_ofsm_clk 0
 856            write B200 a1
 857          */
 858         ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa9);
 859         if (ret)
 860                 return ret;
 861         ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x07);
 862         if (ret)
 863                 return ret;
 864         temp = 0x01;
 865         ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0);
 866         if (ret)
 867                 return ret;
 868         ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x00);
 869         if (ret)
 870                 return ret;
 871         ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa1);
 872         if (ret)
 873                 return ret;
 874
 875         temp = regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos;
 876         if ((ret =
 877              af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
 878                                         reg_ofdm_rst_pos, reg_ofdm_rst_len, 1)))
 879                 return ret;
 880         ret = af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst,
 881                                          reg_ofdm_rst_pos, reg_ofdm_rst_len, 0);
 882
 883         if (ret)
 884                 return ret;
 885         /* don't know what register aefc is, but this is what the windows driver does */
 886         ret = af9005_write_ofdm_register(state->d, 0xaefc, 0);
 887         if (ret)
 888                 return ret;
 889
 890         /* set stand alone chip */
 891         deb_info("set stand alone chip\n");
 892         if ((ret =
 893              af9005_write_register_bits(state->d, xd_p_reg_dca_stand_alone,
 894                                         reg_dca_stand_alone_pos,
 895                                         reg_dca_stand_alone_len, 1)))
 896                 return ret;
 897
 898         /* set dca upper & lower chip */
 899         deb_info("set dca upper & lower chip\n");
 900         if ((ret =
 901              af9005_write_register_bits(state->d, xd_p_reg_dca_upper_chip,
 902                                         reg_dca_upper_chip_pos,
 903                                         reg_dca_upper_chip_len, 0)))
 904                 return ret;
 905         if ((ret =
 906              af9005_write_register_bits(state->d, xd_p_reg_dca_lower_chip,
 907                                         reg_dca_lower_chip_pos,
 908                                         reg_dca_lower_chip_len, 0)))
 909                 return ret;
 910
 911         /* set 2wire master clock to 0x14 (for 60KHz) */
 912         deb_info("set 2wire master clock to 0x14 (for 60KHz)\n");
 913         if ((ret =
 914              af9005_write_ofdm_register(state->d, xd_I2C_i2c_m_period, 0x14)))
 915                 return ret;
 916
 917         /* clear dca enable chip */
 918         deb_info("clear dca enable chip\n");
 919         if ((ret =
 920              af9005_write_register_bits(state->d, xd_p_reg_dca_en,
 921                                         reg_dca_en_pos, reg_dca_en_len, 0)))
 922                 return ret;
 923         /* FIXME these are register bits, but I don't know which ones */
 924         ret = af9005_write_ofdm_register(state->d, 0xa16c, 1);
 925         if (ret)
 926                 return ret;
 927         ret = af9005_write_ofdm_register(state->d, 0xa3c1, 0);
 928         if (ret)
 929                 return ret;
 930
 931         /* init other parameters: program cfoe and select bandwidth */
 932         deb_info("program cfoe\n");
 933         ret = af9005_fe_program_cfoe(state->d, 6000000);
 934         if (ret)
 935                 return ret;
 936         /* set read-update bit for modulation */
 937         deb_info("set read-update bit for modulation\n");
 938         if ((ret =
 939              af9005_write_register_bits(state->d, xd_p_reg_feq_read_update,
 940                                         reg_feq_read_update_pos,
 941                                         reg_feq_read_update_len, 1)))
 942                 return ret;
 943
 944         /* sample code has a set MPEG TS code here
 945            but sniffing reveals that it doesn't do it */
 946
 947         /* set read-update bit to 1 for DCA modulation */
 948         deb_info("set read-update bit 1 for DCA modulation\n");
 949         if ((ret =
 950              af9005_write_register_bits(state->d, xd_p_reg_dca_read_update,
 951                                         reg_dca_read_update_pos,
 952                                         reg_dca_read_update_len, 1)))
 953                 return ret;
 954
 955         /* enable fec monitor */
 956         deb_info("enable fec monitor\n");
 957         if ((ret =
 958              af9005_write_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en,
 959                                         fec_vtb_rsd_mon_en_pos,
 960                                         fec_vtb_rsd_mon_en_len, 1)))
 961                 return ret;
 962
 963         /* FIXME should be register bits, I don't know which ones */
 964         ret = af9005_write_ofdm_register(state->d, 0xa601, 0);
 965
 966         /* set api_retrain_never_freeze */
 967         deb_info("set api_retrain_never_freeze\n");
 968         if ((ret = af9005_write_ofdm_register(state->d, 0xaefb, 0x01)))
 969                 return ret;
 970
 971         /* load init script */
 972         deb_info("load init script\n");
 973         scriptlen = sizeof(script) / sizeof(RegDesc);
 974         for (i = 0; i < scriptlen; i++) {
 975                 if ((ret =
 976                      af9005_write_register_bits(state->d, script[i].reg,
 977                                                 script[i].pos,
 978                                                 script[i].len, script[i].val)))
 979                         return ret;
 980                 /* save 3 bytes of original fcw */
 981                 if (script[i].reg == 0xae18)
 982                         temp2 = script[i].val;
 983                 if (script[i].reg == 0xae19)
 984                         temp1 = script[i].val;
 985                 if (script[i].reg == 0xae1a)
 986                         temp0 = script[i].val;
 987
 988                 /* save original unplug threshold */
 989                 if (script[i].reg == xd_p_reg_unplug_th)
 990                         state->original_if_unplug_th = script[i].val;
 991                 if (script[i].reg == xd_p_reg_unplug_rf_gain_th)
 992                         state->original_rf_unplug_th = script[i].val;
 993                 if (script[i].reg == xd_p_reg_unplug_dtop_if_gain_th)
 994                         state->original_dtop_if_unplug_th = script[i].val;
 995                 if (script[i].reg == xd_p_reg_unplug_dtop_rf_gain_th)
 996                         state->original_dtop_rf_unplug_th = script[i].val;
 997
 998         }
 999         state->original_fcw =
1000             ((u32) temp2 << 16) + ((u32) temp1 << 8) + (u32) temp0;
1001
1002
1003         /* save original TOPs */
1004         deb_info("save original TOPs\n");
1005
1006         /*  RF TOP */
1007         ret =
1008             af9005_read_word_agc(state->d,
1009                                  xd_p_reg_aagc_rf_top_numerator_9_8,
1010                                  xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
1011                                  &state->original_rf_top);
1012         if (ret)
1013                 return ret;
1014
1015         /*  IF TOP */
1016         ret =
1017             af9005_read_word_agc(state->d,
1018                                  xd_p_reg_aagc_if_top_numerator_9_8,
1019                                  xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1020                                  &state->original_if_top);
1021         if (ret)
1022                 return ret;
1023
1024         /*  ACI 0 IF TOP */
1025         ret =
1026             af9005_read_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1027                                  &state->original_aci0_if_top);
1028         if (ret)
1029                 return ret;
1030
1031         /*  ACI 1 IF TOP */
1032         ret =
1033             af9005_read_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1034                                  &state->original_aci1_if_top);
1035         if (ret)
1036                 return ret;
1037
1038         /* attach tuner and init */
1039         if (fe->ops.tuner_ops.release == NULL) {
1040                 /* read tuner and board id from eeprom */
1041                 ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2);
1042                 if (ret) {
1043                         err("Impossible to read EEPROM\n");
1044                         return ret;
1045                 }
1046                 deb_info("Tuner id %d, board id %d\n", buf[0], buf[1]);
1047                 switch (buf[0]) {
1048                 case 2: /* MT2060 */
1049                         /* read if1 from eeprom */
1050                         ret = af9005_read_eeprom(adap->dev, 0xc8, buf, 2);
1051                         if (ret) {
1052                                 err("Impossible to read EEPROM\n");
1053                                 return ret;
1054                         }
1055                         if1 = (u16) (buf[0] << 8) + buf[1];
1056                         if (dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap,
1057                                          &af9005_mt2060_config, if1) == NULL) {
1058                                 deb_info("MT2060 attach failed\n");
1059                                 return -ENODEV;
1060                         }
1061                         break;
1062                 case 3: /* QT1010 */
1063                 case 9: /* QT1010B */
1064                         if (dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap,
1065                                         &af9005_qt1010_config) ==NULL) {
1066                                 deb_info("QT1010 attach failed\n");
1067                                 return -ENODEV;
1068                         }
1069                         break;
1070                 default:
1071                         err("Unsupported tuner type %d", buf[0]);
1072                         return -ENODEV;
1073                 }
1074                 ret = fe->ops.tuner_ops.init(fe);
1075                 if (ret)
1076                         return ret;
1077         }
1078
1079         deb_info("profit!\n");
1080         return 0;
1081 }
1082
1083 static int af9005_fe_sleep(struct dvb_frontend *fe)
1084 {
1085         return af9005_fe_power(fe, 0);
1086 }
1087
1088 static int af9005_ts_bus_ctrl(struct dvb_frontend *fe, int acquire)
1089 {
1090         struct af9005_fe_state *state = fe->demodulator_priv;
1091
1092         if (acquire) {
1093                 state->opened++;
1094         } else {
1095
1096                 state->opened--;
1097                 if (!state->opened)
1098                         af9005_led_control(state->d, 0);
1099         }
1100         return 0;
1101 }
1102
1103 static int af9005_fe_set_frontend(struct dvb_frontend *fe)
1104 {
1105         struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
1106         struct af9005_fe_state *state = fe->demodulator_priv;
1107         int ret;
1108         u8 temp, temp0, temp1, temp2;
1109
1110         deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency,
1111                  fep->bandwidth_hz);
1112         if (fe->ops.tuner_ops.release == NULL) {
1113                 err("Tuner not attached");
1114                 return -ENODEV;
1115         }
1116
1117         deb_info("turn off led\n");
1118         /* not in the log */
1119         ret = af9005_led_control(state->d, 0);
1120         if (ret)
1121                 return ret;
1122         /* not sure about the bits */
1123         ret = af9005_write_register_bits(state->d, XD_MP2IF_MISC, 2, 1, 0);
1124         if (ret)
1125                 return ret;
1126
1127         /* set FCW to default value */
1128         deb_info("set FCW to default value\n");
1129         temp0 = (u8) (state->original_fcw & 0x000000ff);
1130         temp1 = (u8) ((state->original_fcw & 0x0000ff00) >> 8);
1131         temp2 = (u8) ((state->original_fcw & 0x00ff0000) >> 16);
1132         ret = af9005_write_ofdm_register(state->d, 0xae1a, temp0);
1133         if (ret)
1134                 return ret;
1135         ret = af9005_write_ofdm_register(state->d, 0xae19, temp1);
1136         if (ret)
1137                 return ret;
1138         ret = af9005_write_ofdm_register(state->d, 0xae18, temp2);
1139         if (ret)
1140                 return ret;
1141
1142         /* restore original TOPs */
1143         deb_info("restore original TOPs\n");
1144         ret =
1145             af9005_write_word_agc(state->d,
1146                                   xd_p_reg_aagc_rf_top_numerator_9_8,
1147                                   xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2,
1148                                   state->original_rf_top);
1149         if (ret)
1150                 return ret;
1151         ret =
1152             af9005_write_word_agc(state->d,
1153                                   xd_p_reg_aagc_if_top_numerator_9_8,
1154                                   xd_p_reg_aagc_if_top_numerator_7_0, 0, 2,
1155                                   state->original_if_top);
1156         if (ret)
1157                 return ret;
1158         ret =
1159             af9005_write_word_agc(state->d, 0xA60E, 0xA60A, 4, 2,
1160                                   state->original_aci0_if_top);
1161         if (ret)
1162                 return ret;
1163         ret =
1164             af9005_write_word_agc(state->d, 0xA60E, 0xA60B, 6, 2,
1165                                   state->original_aci1_if_top);
1166         if (ret)
1167                 return ret;
1168
1169         /* select bandwidth */
1170         deb_info("select bandwidth");
1171         ret = af9005_fe_select_bw(state->d, fep->bandwidth_hz);
1172         if (ret)
1173                 return ret;
1174         ret = af9005_fe_program_cfoe(state->d, fep->bandwidth_hz);
1175         if (ret)
1176                 return ret;
1177
1178         /* clear easy mode flag */
1179         deb_info("clear easy mode flag\n");
1180         ret = af9005_write_ofdm_register(state->d, 0xaefd, 0);
1181         if (ret)
1182                 return ret;
1183
1184         /* set unplug threshold to original value */
1185         deb_info("set unplug threshold to original value\n");
1186         ret =
1187             af9005_write_ofdm_register(state->d, xd_p_reg_unplug_th,
1188                                        state->original_if_unplug_th);
1189         if (ret)
1190                 return ret;
1191         /* set tuner */
1192         deb_info("set tuner\n");
1193         ret = fe->ops.tuner_ops.set_params(fe);
1194         if (ret)
1195                 return ret;
1196
1197         /* trigger ofsm */
1198         deb_info("trigger ofsm\n");
1199         temp = 0;
1200         ret = af9005_write_tuner_registers(state->d, 0xffff, &temp, 1);
1201         if (ret)
1202                 return ret;
1203
1204         /* clear retrain and freeze flag */
1205         deb_info("clear retrain and freeze flag\n");
1206         ret =
1207             af9005_write_register_bits(state->d,
1208                                        xd_p_reg_api_retrain_request,
1209                                        reg_api_retrain_request_pos, 2, 0);
1210         if (ret)
1211                 return ret;
1212
1213         /* reset pre viterbi and post viterbi registers and statistics */
1214         af9005_reset_pre_viterbi(fe);
1215         af9005_reset_post_viterbi(fe);
1216         state->pre_vit_error_count = 0;
1217         state->pre_vit_bit_count = 0;
1218         state->ber = 0;
1219         state->post_vit_error_count = 0;
1220         /* state->unc = 0; commented out since it should be ever increasing */
1221         state->abort_count = 0;
1222
1223         state->next_status_check = jiffies;
1224         state->strong = -1;
1225
1226         return 0;
1227 }
1228
1229 static int af9005_fe_get_frontend(struct dvb_frontend *fe)
1230 {
1231         struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
1232         struct af9005_fe_state *state = fe->demodulator_priv;
1233         int ret;
1234         u8 temp;
1235
1236         /* mode */
1237         ret =
1238             af9005_read_register_bits(state->d, xd_g_reg_tpsd_const,
1239                                       reg_tpsd_const_pos, reg_tpsd_const_len,
1240                                       &temp);
1241         if (ret)
1242                 return ret;
1243         deb_info("===== fe_get_frontend_legacy = =============\n");
1244         deb_info("CONSTELLATION ");
1245         switch (temp) {
1246         case 0:
1247                 fep->modulation = QPSK;
1248                 deb_info("QPSK\n");
1249                 break;
1250         case 1:
1251                 fep->modulation = QAM_16;
1252                 deb_info("QAM_16\n");
1253                 break;
1254         case 2:
1255                 fep->modulation = QAM_64;
1256                 deb_info("QAM_64\n");
1257                 break;
1258         }
1259
1260         /* tps hierarchy and alpha value */
1261         ret =
1262             af9005_read_register_bits(state->d, xd_g_reg_tpsd_hier,
1263                                       reg_tpsd_hier_pos, reg_tpsd_hier_len,
1264                                       &temp);
1265         if (ret)
1266                 return ret;
1267         deb_info("HIERARCHY ");
1268         switch (temp) {
1269         case 0:
1270                 fep->hierarchy = HIERARCHY_NONE;
1271                 deb_info("NONE\n");
1272                 break;
1273         case 1:
1274                 fep->hierarchy = HIERARCHY_1;
1275                 deb_info("1\n");
1276                 break;
1277         case 2:
1278                 fep->hierarchy = HIERARCHY_2;
1279                 deb_info("2\n");
1280                 break;
1281         case 3:
1282                 fep->hierarchy = HIERARCHY_4;
1283                 deb_info("4\n");
1284                 break;
1285         }
1286
1287         /*  high/low priority     */
1288         ret =
1289             af9005_read_register_bits(state->d, xd_g_reg_dec_pri,
1290                                       reg_dec_pri_pos, reg_dec_pri_len, &temp);
1291         if (ret)
1292                 return ret;
1293         /* if temp is set = high priority */
1294         deb_info("PRIORITY %s\n", temp ? "high" : "low");
1295
1296         /* high coderate */
1297         ret =
1298             af9005_read_register_bits(state->d, xd_g_reg_tpsd_hpcr,
1299                                       reg_tpsd_hpcr_pos, reg_tpsd_hpcr_len,
1300                                       &temp);
1301         if (ret)
1302                 return ret;
1303         deb_info("CODERATE HP ");
1304         switch (temp) {
1305         case 0:
1306                 fep->code_rate_HP = FEC_1_2;
1307                 deb_info("FEC_1_2\n");
1308                 break;
1309         case 1:
1310                 fep->code_rate_HP = FEC_2_3;
1311                 deb_info("FEC_2_3\n");
1312                 break;
1313         case 2:
1314                 fep->code_rate_HP = FEC_3_4;
1315                 deb_info("FEC_3_4\n");
1316                 break;
1317         case 3:
1318                 fep->code_rate_HP = FEC_5_6;
1319                 deb_info("FEC_5_6\n");
1320                 break;
1321         case 4:
1322                 fep->code_rate_HP = FEC_7_8;
1323                 deb_info("FEC_7_8\n");
1324                 break;
1325         }
1326
1327         /* low coderate */
1328         ret =
1329             af9005_read_register_bits(state->d, xd_g_reg_tpsd_lpcr,
1330                                       reg_tpsd_lpcr_pos, reg_tpsd_lpcr_len,
1331                                       &temp);
1332         if (ret)
1333                 return ret;
1334         deb_info("CODERATE LP ");
1335         switch (temp) {
1336         case 0:
1337                 fep->code_rate_LP = FEC_1_2;
1338                 deb_info("FEC_1_2\n");
1339                 break;
1340         case 1:
1341                 fep->code_rate_LP = FEC_2_3;
1342                 deb_info("FEC_2_3\n");
1343                 break;
1344         case 2:
1345                 fep->code_rate_LP = FEC_3_4;
1346                 deb_info("FEC_3_4\n");
1347                 break;
1348         case 3:
1349                 fep->code_rate_LP = FEC_5_6;
1350                 deb_info("FEC_5_6\n");
1351                 break;
1352         case 4:
1353                 fep->code_rate_LP = FEC_7_8;
1354                 deb_info("FEC_7_8\n");
1355                 break;
1356         }
1357
1358         /* guard interval */
1359         ret =
1360             af9005_read_register_bits(state->d, xd_g_reg_tpsd_gi,
1361                                       reg_tpsd_gi_pos, reg_tpsd_gi_len, &temp);
1362         if (ret)
1363                 return ret;
1364         deb_info("GUARD INTERVAL ");
1365         switch (temp) {
1366         case 0:
1367                 fep->guard_interval = GUARD_INTERVAL_1_32;
1368                 deb_info("1_32\n");
1369                 break;
1370         case 1:
1371                 fep->guard_interval = GUARD_INTERVAL_1_16;
1372                 deb_info("1_16\n");
1373                 break;
1374         case 2:
1375                 fep->guard_interval = GUARD_INTERVAL_1_8;
1376                 deb_info("1_8\n");
1377                 break;
1378         case 3:
1379                 fep->guard_interval = GUARD_INTERVAL_1_4;
1380                 deb_info("1_4\n");
1381                 break;
1382         }
1383
1384         /* fft */
1385         ret =
1386             af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod,
1387                                       reg_tpsd_txmod_pos, reg_tpsd_txmod_len,
1388                                       &temp);
1389         if (ret)
1390                 return ret;
1391         deb_info("TRANSMISSION MODE ");
1392         switch (temp) {
1393         case 0:
1394                 fep->transmission_mode = TRANSMISSION_MODE_2K;
1395                 deb_info("2K\n");
1396                 break;
1397         case 1:
1398                 fep->transmission_mode = TRANSMISSION_MODE_8K;
1399                 deb_info("8K\n");
1400                 break;
1401         }
1402
1403         /* bandwidth      */
1404         ret =
1405             af9005_read_register_bits(state->d, xd_g_reg_bw, reg_bw_pos,
1406                                       reg_bw_len, &temp);
1407         deb_info("BANDWIDTH ");
1408         switch (temp) {
1409         case 0:
1410                 fep->bandwidth_hz = 6000000;
1411                 deb_info("6\n");
1412                 break;
1413         case 1:
1414                 fep->bandwidth_hz = 7000000;
1415                 deb_info("7\n");
1416                 break;
1417         case 2:
1418                 fep->bandwidth_hz = 8000000;
1419                 deb_info("8\n");
1420                 break;
1421         }
1422         return 0;
1423 }
1424
1425 static void af9005_fe_release(struct dvb_frontend *fe)
1426 {
1427         struct af9005_fe_state *state =
1428             (struct af9005_fe_state *)fe->demodulator_priv;
1429         kfree(state);
1430 }
1431
1432 static struct dvb_frontend_ops af9005_fe_ops;
1433
1434 struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d)
1435 {
1436         struct af9005_fe_state *state = NULL;
1437
1438         /* allocate memory for the internal state */
1439         state = kzalloc(sizeof(struct af9005_fe_state), GFP_KERNEL);
1440         if (state == NULL)
1441                 goto error;
1442
1443         deb_info("attaching frontend af9005\n");
1444
1445         state->d = d;
1446         state->opened = 0;
1447
1448         memcpy(&state->frontend.ops, &af9005_fe_ops,
1449                sizeof(struct dvb_frontend_ops));
1450         state->frontend.demodulator_priv = state;
1451
1452         return &state->frontend;
1453       error:
1454         return NULL;
1455 }
1456
1457 static struct dvb_frontend_ops af9005_fe_ops = {
1458         .delsys = { SYS_DVBT },
1459         .info = {
1460                  .name = "AF9005 USB DVB-T",
1461                  .frequency_min = 44250000,
1462                  .frequency_max = 867250000,
1463                  .frequency_stepsize = 250000,
1464                  .caps = FE_CAN_INVERSION_AUTO |
1465                  FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1466                  FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1467                  FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1468                  FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1469                  FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER |
1470                  FE_CAN_HIERARCHY_AUTO,
1471                  },
1472
1473         .release = af9005_fe_release,
1474
1475         .init = af9005_fe_init,
1476         .sleep = af9005_fe_sleep,
1477         .ts_bus_ctrl = af9005_ts_bus_ctrl,
1478
1479         .set_frontend = af9005_fe_set_frontend,
1480         .get_frontend = af9005_fe_get_frontend,
1481
1482         .read_status = af9005_fe_read_status,
1483         .read_ber = af9005_fe_read_ber,
1484         .read_signal_strength = af9005_fe_read_signal_strength,
1485         .read_snr = af9005_fe_read_snr,
1486         .read_ucblocks = af9005_fe_read_unc_blocks,
1487 };