drivers/media/dvb/frontends/dib3000mb.c

   1 /*
   2  * Frontend driver for mobile DVB-T demodulator DiBcom 3000M-B
   3  * DiBcom (http://www.dibcom.fr/)
   4  *
   5  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@desy.de)
   6  *
   7  * based on GPL code from DibCom, which has
   8  *
   9  * Copyright (C) 2004 Amaury Demol for DiBcom (ademol@dibcom.fr)
  10  *
  11  *      This program is free software; you can redistribute it and/or
  12  *      modify it under the terms of the GNU General Public License as
  13  *      published by the Free Software Foundation, version 2.
  14  *
  15  * Acknowledgements
  16  *
  17  *  Amaury Demol (ademol@dibcom.fr) from DiBcom for providing specs and driver
  18  *  sources, on which this driver (and the dvb-dibusb) are based.
  19  *
  20  * see Documentation/dvb/README.dibusb for more information
  21  *
  22  */
  23
  24 #include <linux/config.h>
  25 #include <linux/kernel.h>
  26 #include <linux/module.h>
  27 #include <linux/moduleparam.h>
  28 #include <linux/init.h>
  29 #include <linux/delay.h>
  30 #include <linux/string.h>
  31 #include <linux/slab.h>
  32
  33 #include "dib3000-common.h"
  34 #include "dib3000mb_priv.h"
  35 #include "dib3000.h"
  36
  37 /* Version information */
  38 #define DRIVER_VERSION "0.1"
  39 #define DRIVER_DESC "DiBcom 3000M-B DVB-T demodulator"
  40 #define DRIVER_AUTHOR "Patrick Boettcher, patrick.boettcher@desy.de"
  41
  42 #ifdef CONFIG_DVB_DIBCOM_DEBUG
  43 static int debug;
  44 module_param(debug, int, 0644);
  45 MODULE_PARM_DESC(debug, "set debugging level (1=info,2=xfer,4=setfe,8=getfe (|-able)).");
  46 #endif
  47 #define deb_info(args...) dprintk(0x01,args)
  48 #define deb_xfer(args...) dprintk(0x02,args)
  49 #define deb_setf(args...) dprintk(0x04,args)
  50 #define deb_getf(args...) dprintk(0x08,args)
  51
  52 static int dib3000mb_get_frontend(struct dvb_frontend* fe,
  53                                   struct dvb_frontend_parameters *fep);
  54
  55 static int dib3000mb_set_frontend(struct dvb_frontend* fe,
  56                                   struct dvb_frontend_parameters *fep, int tuner)
  57 {
  58         struct dib3000_state* state = fe->demodulator_priv;
  59         struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
  60         fe_code_rate_t fe_cr = FEC_NONE;
  61         int search_state, seq;
  62
  63         if (tuner && state->config.pll_set) {
  64                 state->config.pll_set(fe, fep);
  65
  66                 deb_setf("bandwidth: ");
  67                 switch (ofdm->bandwidth) {
  68                         case BANDWIDTH_8_MHZ:
  69                                 deb_setf("8 MHz\n");
  70                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
  71                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
  72                                 break;
  73                         case BANDWIDTH_7_MHZ:
  74                                 deb_setf("7 MHz\n");
  75                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[1]);
  76                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_7mhz);
  77                                 break;
  78                         case BANDWIDTH_6_MHZ:
  79                                 deb_setf("6 MHz\n");
  80                                 wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[0]);
  81                                 wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_6mhz);
  82                                 break;
  83                         case BANDWIDTH_AUTO:
  84                                 return -EOPNOTSUPP;
  85                         default:
  86                                 err("unkown bandwidth value.");
  87                                 return -EINVAL;
  88                 }
  89         }
  90         wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
  91
  92         deb_setf("transmission mode: ");
  93         switch (ofdm->transmission_mode) {
  94                 case TRANSMISSION_MODE_2K:
  95                         deb_setf("2k\n");
  96                         wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_2K);
  97                         break;
  98                 case TRANSMISSION_MODE_8K:
  99                         deb_setf("8k\n");
 100                         wr(DIB3000MB_REG_FFT, DIB3000_TRANSMISSION_MODE_8K);
 101                         break;
 102                 case TRANSMISSION_MODE_AUTO:
 103                         deb_setf("auto\n");
 104                         break;
 105                 default:
 106                         return -EINVAL;
 107         }
 108
 109         deb_setf("guard: ");
 110         switch (ofdm->guard_interval) {
 111                 case GUARD_INTERVAL_1_32:
 112                         deb_setf("1_32\n");
 113                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_32);
 114                         break;
 115                 case GUARD_INTERVAL_1_16:
 116                         deb_setf("1_16\n");
 117                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_16);
 118                         break;
 119                 case GUARD_INTERVAL_1_8:
 120                         deb_setf("1_8\n");
 121                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_8);
 122                         break;
 123                 case GUARD_INTERVAL_1_4:
 124                         deb_setf("1_4\n");
 125                         wr(DIB3000MB_REG_GUARD_TIME, DIB3000_GUARD_TIME_1_4);
 126                         break;
 127                 case GUARD_INTERVAL_AUTO:
 128                         deb_setf("auto\n");
 129                         break;
 130                 default:
 131                         return -EINVAL;
 132         }
 133
 134         deb_setf("inversion: ");
 135         switch (fep->inversion) {
 136                 case INVERSION_OFF:
 137                         deb_setf("off\n");
 138                         wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_OFF);
 139                         break;
 140                 case INVERSION_AUTO:
 141                         deb_setf("auto ");
 142                         break;
 143                 case INVERSION_ON:
 144                         deb_setf("on\n");
 145                         wr(DIB3000MB_REG_DDS_INV, DIB3000_DDS_INVERSION_ON);
 146                         break;
 147                 default:
 148                         return -EINVAL;
 149         }
 150
 151         deb_setf("constellation: ");
 152         switch (ofdm->constellation) {
 153                 case QPSK:
 154                         deb_setf("qpsk\n");
 155                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_QPSK);
 156                         break;
 157                 case QAM_16:
 158                         deb_setf("qam16\n");
 159                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_16QAM);
 160                         break;
 161                 case QAM_64:
 162                         deb_setf("qam64\n");
 163                         wr(DIB3000MB_REG_QAM, DIB3000_CONSTELLATION_64QAM);
 164                         break;
 165                 case QAM_AUTO:
 166                         break;
 167                 default:
 168                         return -EINVAL;
 169         }
 170         deb_setf("hierachy: ");
 171         switch (ofdm->hierarchy_information) {
 172                 case HIERARCHY_NONE:
 173                         deb_setf("none ");
 174                         /* fall through */
 175                 case HIERARCHY_1:
 176                         deb_setf("alpha=1\n");
 177                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_1);
 178                         break;
 179                 case HIERARCHY_2:
 180                         deb_setf("alpha=2\n");
 181                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_2);
 182                         break;
 183                 case HIERARCHY_4:
 184                         deb_setf("alpha=4\n");
 185                         wr(DIB3000MB_REG_VIT_ALPHA, DIB3000_ALPHA_4);
 186                         break;
 187                 case HIERARCHY_AUTO:
 188                         deb_setf("alpha=auto\n");
 189                         break;
 190                 default:
 191                         return -EINVAL;
 192         }
 193
 194         deb_setf("hierarchy: ");
 195         if (ofdm->hierarchy_information == HIERARCHY_NONE) {
 196                 deb_setf("none\n");
 197                 wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_OFF);
 198                 wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_HP);
 199                 fe_cr = ofdm->code_rate_HP;
 200         } else if (ofdm->hierarchy_information != HIERARCHY_AUTO) {
 201                 deb_setf("on\n");
 202                 wr(DIB3000MB_REG_VIT_HRCH, DIB3000_HRCH_ON);
 203                 wr(DIB3000MB_REG_VIT_HP, DIB3000_SELECT_LP);
 204                 fe_cr = ofdm->code_rate_LP;
 205         }
 206         deb_setf("fec: ");
 207         switch (fe_cr) {
 208                 case FEC_1_2:
 209                         deb_setf("1_2\n");
 210                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_1_2);
 211                         break;
 212                 case FEC_2_3:
 213                         deb_setf("2_3\n");
 214                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_2_3);
 215                         break;
 216                 case FEC_3_4:
 217                         deb_setf("3_4\n");
 218                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_3_4);
 219                         break;
 220                 case FEC_5_6:
 221                         deb_setf("5_6\n");
 222                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_5_6);
 223                         break;
 224                 case FEC_7_8:
 225                         deb_setf("7_8\n");
 226                         wr(DIB3000MB_REG_VIT_CODE_RATE, DIB3000_FEC_7_8);
 227                         break;
 228                 case FEC_NONE:
 229                         deb_setf("none ");
 230                         break;
 231                 case FEC_AUTO:
 232                         deb_setf("auto\n");
 233                         break;
 234                 default:
 235                         return -EINVAL;
 236         }
 237
 238         seq = dib3000_seq
 239                 [ofdm->transmission_mode == TRANSMISSION_MODE_AUTO]
 240                 [ofdm->guard_interval == GUARD_INTERVAL_AUTO]
 241                 [fep->inversion == INVERSION_AUTO];
 242
 243         deb_setf("seq? %d\n", seq);
 244
 245         wr(DIB3000MB_REG_SEQ, seq);
 246
 247         wr(DIB3000MB_REG_ISI, seq ? DIB3000MB_ISI_INHIBIT : DIB3000MB_ISI_ACTIVATE);
 248
 249         if (ofdm->transmission_mode == TRANSMISSION_MODE_2K) {
 250                 if (ofdm->guard_interval == GUARD_INTERVAL_1_8) {
 251                         wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_2K_1_8);
 252                 } else {
 253                         wr(DIB3000MB_REG_SYNC_IMPROVEMENT, DIB3000MB_SYNC_IMPROVE_DEFAULT);
 254                 }
 255
 256                 wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_2K);
 257         } else {
 258                 wr(DIB3000MB_REG_UNK_121, DIB3000MB_UNK_121_DEFAULT);
 259         }
 260
 261         wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_OFF);
 262         wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
 263         wr(DIB3000MB_REG_MOBILE_MODE, DIB3000MB_MOBILE_MODE_OFF);
 264
 265         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_high);
 266
 267         wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_ACTIVATE);
 268
 269         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC + DIB3000MB_RESTART_CTRL);
 270         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
 271
 272         /* wait for AGC lock */
 273         msleep(70);
 274
 275         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
 276
 277         /* something has to be auto searched */
 278         if (ofdm->constellation == QAM_AUTO ||
 279                 ofdm->hierarchy_information == HIERARCHY_AUTO ||
 280                 fe_cr == FEC_AUTO ||
 281                 fep->inversion == INVERSION_AUTO) {
 282                 int as_count=0;
 283
 284                 deb_setf("autosearch enabled.\n");
 285
 286                 wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
 287
 288                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AUTO_SEARCH);
 289                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
 290
 291                 while ((search_state =
 292                                 dib3000_search_status(
 293                                         rd(DIB3000MB_REG_AS_IRQ_PENDING),
 294                                         rd(DIB3000MB_REG_LOCK2_VALUE))) < 0 && as_count++ < 100)
 295                         msleep(1);
 296
 297                 deb_setf("search_state after autosearch %d after %d checks\n",search_state,as_count);
 298
 299                 if (search_state == 1) {
 300                         struct dvb_frontend_parameters feps;
 301                         if (dib3000mb_get_frontend(fe, &feps) == 0) {
 302                                 deb_setf("reading tuning data from frontend succeeded.\n");
 303                                 return dib3000mb_set_frontend(fe, &feps, 0);
 304                         }
 305                 }
 306
 307         } else {
 308                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_CTRL);
 309                 wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_OFF);
 310         }
 311
 312         return 0;
 313 }
 314
 315 static int dib3000mb_fe_init(struct dvb_frontend* fe, int mobile_mode)
 316 {
 317         struct dib3000_state* state = fe->demodulator_priv;
 318
 319         deb_info("dib3000mb is getting up.\n");
 320         wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_UP);
 321
 322         wr(DIB3000MB_REG_RESTART, DIB3000MB_RESTART_AGC);
 323
 324         wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE);
 325         wr(DIB3000MB_REG_RESET_DEVICE, DIB3000MB_RESET_DEVICE_RST);
 326
 327         wr(DIB3000MB_REG_CLOCK, DIB3000MB_CLOCK_DEFAULT);
 328
 329         wr(DIB3000MB_REG_ELECT_OUT_MODE, DIB3000MB_ELECT_OUT_MODE_ON);
 330
 331         wr(DIB3000MB_REG_DDS_FREQ_MSB, DIB3000MB_DDS_FREQ_MSB);
 332         wr(DIB3000MB_REG_DDS_FREQ_LSB, DIB3000MB_DDS_FREQ_LSB);
 333
 334         wr_foreach(dib3000mb_reg_timing_freq, dib3000mb_timing_freq[2]);
 335
 336         wr_foreach(dib3000mb_reg_impulse_noise,
 337                         dib3000mb_impulse_noise_values[DIB3000MB_IMPNOISE_OFF]);
 338
 339         wr_foreach(dib3000mb_reg_agc_gain, dib3000mb_default_agc_gain);
 340
 341         wr(DIB3000MB_REG_PHASE_NOISE, DIB3000MB_PHASE_NOISE_DEFAULT);
 342
 343         wr_foreach(dib3000mb_reg_phase_noise, dib3000mb_default_noise_phase);
 344
 345         wr_foreach(dib3000mb_reg_lock_duration, dib3000mb_default_lock_duration);
 346
 347         wr_foreach(dib3000mb_reg_agc_bandwidth, dib3000mb_agc_bandwidth_low);
 348
 349         wr(DIB3000MB_REG_LOCK0_MASK, DIB3000MB_LOCK0_DEFAULT);
 350         wr(DIB3000MB_REG_LOCK1_MASK, DIB3000MB_LOCK1_SEARCH_4);
 351         wr(DIB3000MB_REG_LOCK2_MASK, DIB3000MB_LOCK2_DEFAULT);
 352         wr(DIB3000MB_REG_SEQ, dib3000_seq[1][1][1]);
 353
 354         wr_foreach(dib3000mb_reg_bandwidth, dib3000mb_bandwidth_8mhz);
 355
 356         wr(DIB3000MB_REG_UNK_68, DIB3000MB_UNK_68);
 357         wr(DIB3000MB_REG_UNK_69, DIB3000MB_UNK_69);
 358         wr(DIB3000MB_REG_UNK_71, DIB3000MB_UNK_71);
 359         wr(DIB3000MB_REG_UNK_77, DIB3000MB_UNK_77);
 360         wr(DIB3000MB_REG_UNK_78, DIB3000MB_UNK_78);
 361         wr(DIB3000MB_REG_ISI, DIB3000MB_ISI_INHIBIT);
 362         wr(DIB3000MB_REG_UNK_92, DIB3000MB_UNK_92);
 363         wr(DIB3000MB_REG_UNK_96, DIB3000MB_UNK_96);
 364         wr(DIB3000MB_REG_UNK_97, DIB3000MB_UNK_97);
 365         wr(DIB3000MB_REG_UNK_106, DIB3000MB_UNK_106);
 366         wr(DIB3000MB_REG_UNK_107, DIB3000MB_UNK_107);
 367         wr(DIB3000MB_REG_UNK_108, DIB3000MB_UNK_108);
 368         wr(DIB3000MB_REG_UNK_122, DIB3000MB_UNK_122);
 369         wr(DIB3000MB_REG_MOBILE_MODE_QAM, DIB3000MB_MOBILE_MODE_QAM_OFF);
 370         wr(DIB3000MB_REG_BERLEN, DIB3000MB_BERLEN_DEFAULT);
 371
 372         wr_foreach(dib3000mb_reg_filter_coeffs, dib3000mb_filter_coeffs);
 373
 374         wr(DIB3000MB_REG_MOBILE_ALGO, DIB3000MB_MOBILE_ALGO_ON);
 375         wr(DIB3000MB_REG_MULTI_DEMOD_MSB, DIB3000MB_MULTI_DEMOD_MSB);
 376         wr(DIB3000MB_REG_MULTI_DEMOD_LSB, DIB3000MB_MULTI_DEMOD_LSB);
 377
 378         wr(DIB3000MB_REG_OUTPUT_MODE, DIB3000MB_OUTPUT_MODE_SLAVE);
 379
 380         wr(DIB3000MB_REG_FIFO_142, DIB3000MB_FIFO_142);
 381         wr(DIB3000MB_REG_MPEG2_OUT_MODE, DIB3000MB_MPEG2_OUT_MODE_188);
 382         wr(DIB3000MB_REG_PID_PARSE, DIB3000MB_PID_PARSE_ACTIVATE);
 383         wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
 384         wr(DIB3000MB_REG_FIFO_146, DIB3000MB_FIFO_146);
 385         wr(DIB3000MB_REG_FIFO_147, DIB3000MB_FIFO_147);
 386
 387         wr(DIB3000MB_REG_DATA_IN_DIVERSITY, DIB3000MB_DATA_DIVERSITY_IN_OFF);
 388
 389         if (state->config.pll_init)
 390                 state->config.pll_init(fe);
 391
 392         return 0;
 393 }
 394
 395 static int dib3000mb_get_frontend(struct dvb_frontend* fe,
 396                                   struct dvb_frontend_parameters *fep)
 397 {
 398         struct dib3000_state* state = fe->demodulator_priv;
 399         struct dvb_ofdm_parameters *ofdm = &fep->u.ofdm;
 400         fe_code_rate_t *cr;
 401         u16 tps_val;
 402         int inv_test1,inv_test2;
 403         u32 dds_val, threshold = 0x800000;
 404
 405         if (!rd(DIB3000MB_REG_TPS_LOCK))
 406                 return 0;
 407
 408         dds_val = ((rd(DIB3000MB_REG_DDS_VALUE_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_VALUE_LSB);
 409         deb_getf("DDS_VAL: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_VALUE_MSB), rd(DIB3000MB_REG_DDS_VALUE_LSB));
 410         if (dds_val < threshold)
 411                 inv_test1 = 0;
 412         else if (dds_val == threshold)
 413                 inv_test1 = 1;
 414         else
 415                 inv_test1 = 2;
 416
 417         dds_val = ((rd(DIB3000MB_REG_DDS_FREQ_MSB) & 0xff) << 16) + rd(DIB3000MB_REG_DDS_FREQ_LSB);
 418         deb_getf("DDS_FREQ: %x %x %x",dds_val, rd(DIB3000MB_REG_DDS_FREQ_MSB), rd(DIB3000MB_REG_DDS_FREQ_LSB));
 419         if (dds_val < threshold)
 420                 inv_test2 = 0;
 421         else if (dds_val == threshold)
 422                 inv_test2 = 1;
 423         else
 424                 inv_test2 = 2;
 425
 426         fep->inversion =
 427                 ((inv_test2 == 2) && (inv_test1==1 || inv_test1==0)) ||
 428                 ((inv_test2 == 0) && (inv_test1==1 || inv_test1==2)) ?
 429                 INVERSION_ON : INVERSION_OFF;
 430
 431         deb_getf("inversion %d %d, %d\n", inv_test2, inv_test1, fep->inversion);
 432
 433         switch ((tps_val = rd(DIB3000MB_REG_TPS_QAM))) {
 434                 case DIB3000_CONSTELLATION_QPSK:
 435                         deb_getf("QPSK ");
 436                         ofdm->constellation = QPSK;
 437                         break;
 438                 case DIB3000_CONSTELLATION_16QAM:
 439                         deb_getf("QAM16 ");
 440                         ofdm->constellation = QAM_16;
 441                         break;
 442                 case DIB3000_CONSTELLATION_64QAM:
 443                         deb_getf("QAM64 ");
 444                         ofdm->constellation = QAM_64;
 445                         break;
 446                 default:
 447                         err("Unexpected constellation returned by TPS (%d)", tps_val);
 448                         break;
 449         }
 450         deb_getf("TPS: %d\n", tps_val);
 451
 452         if (rd(DIB3000MB_REG_TPS_HRCH)) {
 453                 deb_getf("HRCH ON\n");
 454                 cr = &ofdm->code_rate_LP;
 455                 ofdm->code_rate_HP = FEC_NONE;
 456                 switch ((tps_val = rd(DIB3000MB_REG_TPS_VIT_ALPHA))) {
 457                         case DIB3000_ALPHA_0:
 458                                 deb_getf("HIERARCHY_NONE ");
 459                                 ofdm->hierarchy_information = HIERARCHY_NONE;
 460                                 break;
 461                         case DIB3000_ALPHA_1:
 462                                 deb_getf("HIERARCHY_1 ");
 463                                 ofdm->hierarchy_information = HIERARCHY_1;
 464                                 break;
 465                         case DIB3000_ALPHA_2:
 466                                 deb_getf("HIERARCHY_2 ");
 467                                 ofdm->hierarchy_information = HIERARCHY_2;
 468                                 break;
 469                         case DIB3000_ALPHA_4:
 470                                 deb_getf("HIERARCHY_4 ");
 471                                 ofdm->hierarchy_information = HIERARCHY_4;
 472                                 break;
 473                         default:
 474                                 err("Unexpected ALPHA value returned by TPS (%d)", tps_val);
 475                                 break;
 476                 }
 477                 deb_getf("TPS: %d\n", tps_val);
 478
 479                 tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_LP);
 480         } else {
 481                 deb_getf("HRCH OFF\n");
 482                 cr = &ofdm->code_rate_HP;
 483                 ofdm->code_rate_LP = FEC_NONE;
 484                 ofdm->hierarchy_information = HIERARCHY_NONE;
 485
 486                 tps_val = rd(DIB3000MB_REG_TPS_CODE_RATE_HP);
 487         }
 488
 489         switch (tps_val) {
 490                 case DIB3000_FEC_1_2:
 491                         deb_getf("FEC_1_2 ");
 492                         *cr = FEC_1_2;
 493                         break;
 494                 case DIB3000_FEC_2_3:
 495                         deb_getf("FEC_2_3 ");
 496                         *cr = FEC_2_3;
 497                         break;
 498                 case DIB3000_FEC_3_4:
 499                         deb_getf("FEC_3_4 ");
 500                         *cr = FEC_3_4;
 501                         break;
 502                 case DIB3000_FEC_5_6:
 503                         deb_getf("FEC_5_6 ");
 504                         *cr = FEC_4_5;
 505                         break;
 506                 case DIB3000_FEC_7_8:
 507                         deb_getf("FEC_7_8 ");
 508                         *cr = FEC_7_8;
 509                         break;
 510                 default:
 511                         err("Unexpected FEC returned by TPS (%d)", tps_val);
 512                         break;
 513         }
 514         deb_getf("TPS: %d\n",tps_val);
 515
 516         switch ((tps_val = rd(DIB3000MB_REG_TPS_GUARD_TIME))) {
 517                 case DIB3000_GUARD_TIME_1_32:
 518                         deb_getf("GUARD_INTERVAL_1_32 ");
 519                         ofdm->guard_interval = GUARD_INTERVAL_1_32;
 520                         break;
 521                 case DIB3000_GUARD_TIME_1_16:
 522                         deb_getf("GUARD_INTERVAL_1_16 ");
 523                         ofdm->guard_interval = GUARD_INTERVAL_1_16;
 524                         break;
 525                 case DIB3000_GUARD_TIME_1_8:
 526                         deb_getf("GUARD_INTERVAL_1_8 ");
 527                         ofdm->guard_interval = GUARD_INTERVAL_1_8;
 528                         break;
 529                 case DIB3000_GUARD_TIME_1_4:
 530                         deb_getf("GUARD_INTERVAL_1_4 ");
 531                         ofdm->guard_interval = GUARD_INTERVAL_1_4;
 532                         break;
 533                 default:
 534                         err("Unexpected Guard Time returned by TPS (%d)", tps_val);
 535                         break;
 536         }
 537         deb_getf("TPS: %d\n", tps_val);
 538
 539         switch ((tps_val = rd(DIB3000MB_REG_TPS_FFT))) {
 540                 case DIB3000_TRANSMISSION_MODE_2K:
 541                         deb_getf("TRANSMISSION_MODE_2K ");
 542                         ofdm->transmission_mode = TRANSMISSION_MODE_2K;
 543                         break;
 544                 case DIB3000_TRANSMISSION_MODE_8K:
 545                         deb_getf("TRANSMISSION_MODE_8K ");
 546                         ofdm->transmission_mode = TRANSMISSION_MODE_8K;
 547                         break;
 548                 default:
 549                         err("unexpected transmission mode return by TPS (%d)", tps_val);
 550                         break;
 551         }
 552         deb_getf("TPS: %d\n", tps_val);
 553
 554         return 0;
 555 }
 556
 557 static int dib3000mb_read_status(struct dvb_frontend* fe, fe_status_t *stat)
 558 {
 559         struct dib3000_state* state = fe->demodulator_priv;
 560
 561         *stat = 0;
 562
 563         if (rd(DIB3000MB_REG_AGC_LOCK))
 564                 *stat |= FE_HAS_SIGNAL;
 565         if (rd(DIB3000MB_REG_CARRIER_LOCK))
 566                 *stat |= FE_HAS_CARRIER;
 567         if (rd(DIB3000MB_REG_VIT_LCK))
 568                 *stat |= FE_HAS_VITERBI;
 569         if (rd(DIB3000MB_REG_TS_SYNC_LOCK))
 570                 *stat |= (FE_HAS_SYNC | FE_HAS_LOCK);
 571
 572         deb_getf("actual status is %2x\n",*stat);
 573
 574         deb_getf("autoval: tps: %d, qam: %d, hrch: %d, alpha: %d, hp: %d, lp: %d, guard: %d, fft: %d cell: %d\n",
 575                         rd(DIB3000MB_REG_TPS_LOCK),
 576                         rd(DIB3000MB_REG_TPS_QAM),
 577                         rd(DIB3000MB_REG_TPS_HRCH),
 578                         rd(DIB3000MB_REG_TPS_VIT_ALPHA),
 579                         rd(DIB3000MB_REG_TPS_CODE_RATE_HP),
 580                         rd(DIB3000MB_REG_TPS_CODE_RATE_LP),
 581                         rd(DIB3000MB_REG_TPS_GUARD_TIME),
 582                         rd(DIB3000MB_REG_TPS_FFT),
 583                         rd(DIB3000MB_REG_TPS_CELL_ID));
 584
 585         //*stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
 586         return 0;
 587 }
 588
 589 static int dib3000mb_read_ber(struct dvb_frontend* fe, u32 *ber)
 590 {
 591         struct dib3000_state* state = fe->demodulator_priv;
 592
 593         *ber = ((rd(DIB3000MB_REG_BER_MSB) << 16) | rd(DIB3000MB_REG_BER_LSB));
 594         return 0;
 595 }
 596
 597 /* see dib3000-watch dvb-apps for exact calcuations of signal_strength and snr */
 598 static int dib3000mb_read_signal_strength(struct dvb_frontend* fe, u16 *strength)
 599 {
 600         struct dib3000_state* state = fe->demodulator_priv;
 601
 602         *strength = rd(DIB3000MB_REG_SIGNAL_POWER) * 0xffff / 0x170;
 603         return 0;
 604 }
 605
 606 static int dib3000mb_read_snr(struct dvb_frontend* fe, u16 *snr)
 607 {
 608         struct dib3000_state* state = fe->demodulator_priv;
 609         short sigpow = rd(DIB3000MB_REG_SIGNAL_POWER);
 610         int icipow = ((rd(DIB3000MB_REG_NOISE_POWER_MSB) & 0xff) << 16) |
 611                 rd(DIB3000MB_REG_NOISE_POWER_LSB);
 612         *snr = (sigpow << 8) / ((icipow > 0) ? icipow : 1);
 613         return 0;
 614 }
 615
 616 static int dib3000mb_read_unc_blocks(struct dvb_frontend* fe, u32 *unc)
 617 {
 618         struct dib3000_state* state = fe->demodulator_priv;
 619
 620         *unc = rd(DIB3000MB_REG_PACKET_ERROR_RATE);
 621         return 0;
 622 }
 623
 624 static int dib3000mb_sleep(struct dvb_frontend* fe)
 625 {
 626         struct dib3000_state* state = fe->demodulator_priv;
 627         deb_info("dib3000mb is going to bed.\n");
 628         wr(DIB3000MB_REG_POWER_CONTROL, DIB3000MB_POWER_DOWN);
 629         return 0;
 630 }
 631
 632 static int dib3000mb_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
 633 {
 634         tune->min_delay_ms = 800;
 635         return 0;
 636 }
 637
 638 static int dib3000mb_fe_init_nonmobile(struct dvb_frontend* fe)
 639 {
 640         return dib3000mb_fe_init(fe, 0);
 641 }
 642
 643 static int dib3000mb_set_frontend_and_tuner(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep)
 644 {
 645         return dib3000mb_set_frontend(fe, fep, 1);
 646 }
 647
 648 static void dib3000mb_release(struct dvb_frontend* fe)
 649 {
 650         struct dib3000_state *state = fe->demodulator_priv;
 651         kfree(state);
 652 }
 653
 654 /* pid filter and transfer stuff */
 655 static int dib3000mb_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff)
 656 {
 657         struct dib3000_state *state = fe->demodulator_priv;
 658         pid = (onoff ? pid | DIB3000_ACTIVATE_PID_FILTERING : 0);
 659         wr(index+DIB3000MB_REG_FIRST_PID,pid);
 660         return 0;
 661 }
 662
 663 static int dib3000mb_fifo_control(struct dvb_frontend *fe, int onoff)
 664 {
 665         struct dib3000_state *state = fe->demodulator_priv;
 666
 667         deb_xfer("%s fifo\n",onoff ? "enabling" : "disabling");
 668         if (onoff) {
 669                 wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_ACTIVATE);
 670         } else {
 671                 wr(DIB3000MB_REG_FIFO, DIB3000MB_FIFO_INHIBIT);
 672         }
 673         return 0;
 674 }
 675
 676 static int dib3000mb_pid_parse(struct dvb_frontend *fe, int onoff)
 677 {
 678         struct dib3000_state *state = fe->demodulator_priv;
 679         deb_xfer("%s pid parsing\n",onoff ? "enabling" : "disabling");
 680         wr(DIB3000MB_REG_PID_PARSE,onoff);
 681         return 0;
 682 }
 683
 684 static int dib3000mb_tuner_pass_ctrl(struct dvb_frontend *fe, int onoff, u8 pll_addr)
 685 {
 686         struct dib3000_state *state = fe->demodulator_priv;
 687         if (onoff) {
 688                 wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_ENABLE(pll_addr));
 689         } else {
 690                 wr(DIB3000MB_REG_TUNER, DIB3000_TUNER_WRITE_DISABLE(pll_addr));
 691         }
 692         return 0;
 693 }
 694
 695 static struct dvb_frontend_ops dib3000mb_ops;
 696
 697 struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config,
 698                                       struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops)
 699 {
 700         struct dib3000_state* state = NULL;
 701
 702         /* allocate memory for the internal state */
 703         state = kzalloc(sizeof(struct dib3000_state), GFP_KERNEL);
 704         if (state == NULL)
 705                 goto error;
 706
 707         /* setup the state */
 708         state->i2c = i2c;
 709         memcpy(&state->config,config,sizeof(struct dib3000_config));
 710         memcpy(&state->ops, &dib3000mb_ops, sizeof(struct dvb_frontend_ops));
 711
 712         /* check for the correct demod */
 713         if (rd(DIB3000_REG_MANUFACTOR_ID) != DIB3000_I2C_ID_DIBCOM)
 714                 goto error;
 715
 716         if (rd(DIB3000_REG_DEVICE_ID) != DIB3000MB_DEVICE_ID)
 717                 goto error;
 718
 719         /* create dvb_frontend */
 720         state->frontend.ops = &state->ops;
 721         state->frontend.demodulator_priv = state;
 722
 723         /* set the xfer operations */
 724         xfer_ops->pid_parse = dib3000mb_pid_parse;
 725         xfer_ops->fifo_ctrl = dib3000mb_fifo_control;
 726         xfer_ops->pid_ctrl = dib3000mb_pid_control;
 727         xfer_ops->tuner_pass_ctrl = dib3000mb_tuner_pass_ctrl;
 728
 729         return &state->frontend;
 730
 731 error:
 732         kfree(state);
 733         return NULL;
 734 }
 735
 736 static struct dvb_frontend_ops dib3000mb_ops = {
 737
 738         .info = {
 739                 .name                   = "DiBcom 3000M-B DVB-T",
 740                 .type                   = FE_OFDM,
 741                 .frequency_min          = 44250000,
 742                 .frequency_max          = 867250000,
 743                 .frequency_stepsize     = 62500,
 744                 .caps = FE_CAN_INVERSION_AUTO |
 745                                 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
 746                                 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
 747                                 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
 748                                 FE_CAN_TRANSMISSION_MODE_AUTO |
 749                                 FE_CAN_GUARD_INTERVAL_AUTO |
 750                                 FE_CAN_RECOVER |
 751                                 FE_CAN_HIERARCHY_AUTO,
 752         },
 753
 754         .release = dib3000mb_release,
 755
 756         .init = dib3000mb_fe_init_nonmobile,
 757         .sleep = dib3000mb_sleep,
 758
 759         .set_frontend = dib3000mb_set_frontend_and_tuner,
 760         .get_frontend = dib3000mb_get_frontend,
 761         .get_tune_settings = dib3000mb_fe_get_tune_settings,
 762
 763         .read_status = dib3000mb_read_status,
 764         .read_ber = dib3000mb_read_ber,
 765         .read_signal_strength = dib3000mb_read_signal_strength,
 766         .read_snr = dib3000mb_read_snr,
 767         .read_ucblocks = dib3000mb_read_unc_blocks,
 768 };
 769
 770 MODULE_AUTHOR(DRIVER_AUTHOR);
 771 MODULE_DESCRIPTION(DRIVER_DESC);
 772 MODULE_LICENSE("GPL");
 773
 774 EXPORT_SYMBOL(dib3000mb_attach);