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