drivers/media/dvb/frontends/stv090x.c

   1 /*
   2         STV0900/0903 Multistandard Broadcast Frontend driver
   3         Copyright (C) Manu Abraham <abraham.manu@gmail.com>
   4
   5         Copyright (C) ST Microelectronics
   6
   7         This program is free software; you can redistribute it and/or modify
   8         it under the terms of the GNU General Public License as published by
   9         the Free Software Foundation; either version 2 of the License, or
  10         (at your option) any later version.
  11
  12         This program is distributed in the hope that it will be useful,
  13         but WITHOUT ANY WARRANTY; without even the implied warranty of
  14         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15         GNU General Public License for more details.
  16
  17         You should have received a copy of the GNU General Public License
  18         along with this program; if not, write to the Free Software
  19         Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include <linux/init.h>
  23 #include <linux/kernel.h>
  24 #include <linux/module.h>
  25 #include <linux/string.h>
  26 #include <linux/mutex.h>
  27
  28 #include <linux/dvb/frontend.h>
  29 #include "dvb_frontend.h"
  30
  31 #include "stv6110x.h" /* for demodulator internal modes */
  32
  33 #include "stv090x_reg.h"
  34 #include "stv090x.h"
  35 #include "stv090x_priv.h"
  36
  37 static unsigned int verbose;
  38 module_param(verbose, int, 0644);
  39
  40 /* internal params node */
  41 struct stv090x_dev {
  42         /* pointer for internal params, one for each pair of demods */
  43         struct stv090x_internal         *internal;
  44         struct stv090x_dev              *next_dev;
  45 };
  46
  47 /* first internal params */
  48 static struct stv090x_dev *stv090x_first_dev;
  49
  50 /* find chip by i2c adapter and i2c address */
  51 static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
  52                                         u8 i2c_addr)
  53 {
  54         struct stv090x_dev *temp_dev = stv090x_first_dev;
  55
  56         /*
  57          Search of the last stv0900 chip or
  58          find it by i2c adapter and i2c address */
  59         while ((temp_dev != NULL) &&
  60                 ((temp_dev->internal->i2c_adap != i2c_adap) ||
  61                 (temp_dev->internal->i2c_addr != i2c_addr))) {
  62
  63                 temp_dev = temp_dev->next_dev;
  64         }
  65
  66         return temp_dev;
  67 }
  68
  69 /* deallocating chip */
  70 static void remove_dev(struct stv090x_internal *internal)
  71 {
  72         struct stv090x_dev *prev_dev = stv090x_first_dev;
  73         struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
  74                                                 internal->i2c_addr);
  75
  76         if (del_dev != NULL) {
  77                 if (del_dev == stv090x_first_dev) {
  78                         stv090x_first_dev = del_dev->next_dev;
  79                 } else {
  80                         while (prev_dev->next_dev != del_dev)
  81                                 prev_dev = prev_dev->next_dev;
  82
  83                         prev_dev->next_dev = del_dev->next_dev;
  84                 }
  85
  86                 kfree(del_dev);
  87         }
  88 }
  89
  90 /* allocating new chip */
  91 static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
  92 {
  93         struct stv090x_dev *new_dev;
  94         struct stv090x_dev *temp_dev;
  95
  96         new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
  97         if (new_dev != NULL) {
  98                 new_dev->internal = internal;
  99                 new_dev->next_dev = NULL;
 100
 101                 /* append to list */
 102                 if (stv090x_first_dev == NULL) {
 103                         stv090x_first_dev = new_dev;
 104                 } else {
 105                         temp_dev = stv090x_first_dev;
 106                         while (temp_dev->next_dev != NULL)
 107                                 temp_dev = temp_dev->next_dev;
 108
 109                         temp_dev->next_dev = new_dev;
 110                 }
 111         }
 112
 113         return new_dev;
 114 }
 115
 116
 117 /* DVBS1 and DSS C/N Lookup table */
 118 static const struct stv090x_tab stv090x_s1cn_tab[] = {
 119         {   0, 8917 }, /*  0.0dB */
 120         {   5, 8801 }, /*  0.5dB */
 121         {  10, 8667 }, /*  1.0dB */
 122         {  15, 8522 }, /*  1.5dB */
 123         {  20, 8355 }, /*  2.0dB */
 124         {  25, 8175 }, /*  2.5dB */
 125         {  30, 7979 }, /*  3.0dB */
 126         {  35, 7763 }, /*  3.5dB */
 127         {  40, 7530 }, /*  4.0dB */
 128         {  45, 7282 }, /*  4.5dB */
 129         {  50, 7026 }, /*  5.0dB */
 130         {  55, 6781 }, /*  5.5dB */
 131         {  60, 6514 }, /*  6.0dB */
 132         {  65, 6241 }, /*  6.5dB */
 133         {  70, 5965 }, /*  7.0dB */
 134         {  75, 5690 }, /*  7.5dB */
 135         {  80, 5424 }, /*  8.0dB */
 136         {  85, 5161 }, /*  8.5dB */
 137         {  90, 4902 }, /*  9.0dB */
 138         {  95, 4654 }, /*  9.5dB */
 139         { 100, 4417 }, /* 10.0dB */
 140         { 105, 4186 }, /* 10.5dB */
 141         { 110, 3968 }, /* 11.0dB */
 142         { 115, 3757 }, /* 11.5dB */
 143         { 120, 3558 }, /* 12.0dB */
 144         { 125, 3366 }, /* 12.5dB */
 145         { 130, 3185 }, /* 13.0dB */
 146         { 135, 3012 }, /* 13.5dB */
 147         { 140, 2850 }, /* 14.0dB */
 148         { 145, 2698 }, /* 14.5dB */
 149         { 150, 2550 }, /* 15.0dB */
 150         { 160, 2283 }, /* 16.0dB */
 151         { 170, 2042 }, /* 17.0dB */
 152         { 180, 1827 }, /* 18.0dB */
 153         { 190, 1636 }, /* 19.0dB */
 154         { 200, 1466 }, /* 20.0dB */
 155         { 210, 1315 }, /* 21.0dB */
 156         { 220, 1181 }, /* 22.0dB */
 157         { 230, 1064 }, /* 23.0dB */
 158         { 240,  960 }, /* 24.0dB */
 159         { 250,  869 }, /* 25.0dB */
 160         { 260,  792 }, /* 26.0dB */
 161         { 270,  724 }, /* 27.0dB */
 162         { 280,  665 }, /* 28.0dB */
 163         { 290,  616 }, /* 29.0dB */
 164         { 300,  573 }, /* 30.0dB */
 165         { 310,  537 }, /* 31.0dB */
 166         { 320,  507 }, /* 32.0dB */
 167         { 330,  483 }, /* 33.0dB */
 168         { 400,  398 }, /* 40.0dB */
 169         { 450,  381 }, /* 45.0dB */
 170         { 500,  377 }  /* 50.0dB */
 171 };
 172
 173 /* DVBS2 C/N Lookup table */
 174 static const struct stv090x_tab stv090x_s2cn_tab[] = {
 175         { -30, 13348 }, /* -3.0dB */
 176         { -20, 12640 }, /* -2d.0B */
 177         { -10, 11883 }, /* -1.0dB */
 178         {   0, 11101 }, /* -0.0dB */
 179         {   5, 10718 }, /*  0.5dB */
 180         {  10, 10339 }, /*  1.0dB */
 181         {  15,  9947 }, /*  1.5dB */
 182         {  20,  9552 }, /*  2.0dB */
 183         {  25,  9183 }, /*  2.5dB */
 184         {  30,  8799 }, /*  3.0dB */
 185         {  35,  8422 }, /*  3.5dB */
 186         {  40,  8062 }, /*  4.0dB */
 187         {  45,  7707 }, /*  4.5dB */
 188         {  50,  7353 }, /*  5.0dB */
 189         {  55,  7025 }, /*  5.5dB */
 190         {  60,  6684 }, /*  6.0dB */
 191         {  65,  6331 }, /*  6.5dB */
 192         {  70,  6036 }, /*  7.0dB */
 193         {  75,  5727 }, /*  7.5dB */
 194         {  80,  5437 }, /*  8.0dB */
 195         {  85,  5164 }, /*  8.5dB */
 196         {  90,  4902 }, /*  9.0dB */
 197         {  95,  4653 }, /*  9.5dB */
 198         { 100,  4408 }, /* 10.0dB */
 199         { 105,  4187 }, /* 10.5dB */
 200         { 110,  3961 }, /* 11.0dB */
 201         { 115,  3751 }, /* 11.5dB */
 202         { 120,  3558 }, /* 12.0dB */
 203         { 125,  3368 }, /* 12.5dB */
 204         { 130,  3191 }, /* 13.0dB */
 205         { 135,  3017 }, /* 13.5dB */
 206         { 140,  2862 }, /* 14.0dB */
 207         { 145,  2710 }, /* 14.5dB */
 208         { 150,  2565 }, /* 15.0dB */
 209         { 160,  2300 }, /* 16.0dB */
 210         { 170,  2058 }, /* 17.0dB */
 211         { 180,  1849 }, /* 18.0dB */
 212         { 190,  1663 }, /* 19.0dB */
 213         { 200,  1495 }, /* 20.0dB */
 214         { 210,  1349 }, /* 21.0dB */
 215         { 220,  1222 }, /* 22.0dB */
 216         { 230,  1110 }, /* 23.0dB */
 217         { 240,  1011 }, /* 24.0dB */
 218         { 250,   925 }, /* 25.0dB */
 219         { 260,   853 }, /* 26.0dB */
 220         { 270,   789 }, /* 27.0dB */
 221         { 280,   734 }, /* 28.0dB */
 222         { 290,   690 }, /* 29.0dB */
 223         { 300,   650 }, /* 30.0dB */
 224         { 310,   619 }, /* 31.0dB */
 225         { 320,   593 }, /* 32.0dB */
 226         { 330,   571 }, /* 33.0dB */
 227         { 400,   498 }, /* 40.0dB */
 228         { 450,   484 }, /* 45.0dB */
 229         { 500,   481 }  /* 50.0dB */
 230 };
 231
 232 /* RF level C/N lookup table */
 233 static const struct stv090x_tab stv090x_rf_tab[] = {
 234         {  -5, 0xcaa1 }, /*  -5dBm */
 235         { -10, 0xc229 }, /* -10dBm */
 236         { -15, 0xbb08 }, /* -15dBm */
 237         { -20, 0xb4bc }, /* -20dBm */
 238         { -25, 0xad5a }, /* -25dBm */
 239         { -30, 0xa298 }, /* -30dBm */
 240         { -35, 0x98a8 }, /* -35dBm */
 241         { -40, 0x8389 }, /* -40dBm */
 242         { -45, 0x59be }, /* -45dBm */
 243         { -50, 0x3a14 }, /* -50dBm */
 244         { -55, 0x2d11 }, /* -55dBm */
 245         { -60, 0x210d }, /* -60dBm */
 246         { -65, 0xa14f }, /* -65dBm */
 247         { -70, 0x07aa }  /* -70dBm */
 248 };
 249
 250
 251 static struct stv090x_reg stv0900_initval[] = {
 252
 253         { STV090x_OUTCFG,               0x00 },
 254         { STV090x_MODECFG,              0xff },
 255         { STV090x_AGCRF1CFG,            0x11 },
 256         { STV090x_AGCRF2CFG,            0x13 },
 257         { STV090x_TSGENERAL1X,          0x14 },
 258         { STV090x_TSTTNR2,              0x21 },
 259         { STV090x_TSTTNR4,              0x21 },
 260         { STV090x_P2_DISTXCTL,          0x22 },
 261         { STV090x_P2_F22TX,             0xc0 },
 262         { STV090x_P2_F22RX,             0xc0 },
 263         { STV090x_P2_DISRXCTL,          0x00 },
 264         { STV090x_P2_DMDCFGMD,          0xF9 },
 265         { STV090x_P2_DEMOD,             0x08 },
 266         { STV090x_P2_DMDCFG3,           0xc4 },
 267         { STV090x_P2_CARFREQ,           0xed },
 268         { STV090x_P2_LDT,               0xd0 },
 269         { STV090x_P2_LDT2,              0xb8 },
 270         { STV090x_P2_TMGCFG,            0xd2 },
 271         { STV090x_P2_TMGTHRISE,         0x20 },
 272         { STV090x_P1_TMGCFG,            0xd2 },
 273
 274         { STV090x_P2_TMGTHFALL,         0x00 },
 275         { STV090x_P2_FECSPY,            0x88 },
 276         { STV090x_P2_FSPYDATA,          0x3a },
 277         { STV090x_P2_FBERCPT4,          0x00 },
 278         { STV090x_P2_FSPYBER,           0x10 },
 279         { STV090x_P2_ERRCTRL1,          0x35 },
 280         { STV090x_P2_ERRCTRL2,          0xc1 },
 281         { STV090x_P2_CFRICFG,           0xf8 },
 282         { STV090x_P2_NOSCFG,            0x1c },
 283         { STV090x_P2_DMDTOM,            0x20 },
 284         { STV090x_P2_CORRELMANT,        0x70 },
 285         { STV090x_P2_CORRELABS,         0x88 },
 286         { STV090x_P2_AGC2O,             0x5b },
 287         { STV090x_P2_AGC2REF,           0x38 },
 288         { STV090x_P2_CARCFG,            0xe4 },
 289         { STV090x_P2_ACLC,              0x1A },
 290         { STV090x_P2_BCLC,              0x09 },
 291         { STV090x_P2_CARHDR,            0x08 },
 292         { STV090x_P2_KREFTMG,           0xc1 },
 293         { STV090x_P2_SFRUPRATIO,        0xf0 },
 294         { STV090x_P2_SFRLOWRATIO,       0x70 },
 295         { STV090x_P2_SFRSTEP,           0x58 },
 296         { STV090x_P2_TMGCFG2,           0x01 },
 297         { STV090x_P2_CAR2CFG,           0x26 },
 298         { STV090x_P2_BCLC2S2Q,          0x86 },
 299         { STV090x_P2_BCLC2S28,          0x86 },
 300         { STV090x_P2_SMAPCOEF7,         0x77 },
 301         { STV090x_P2_SMAPCOEF6,         0x85 },
 302         { STV090x_P2_SMAPCOEF5,         0x77 },
 303         { STV090x_P2_TSCFGL,            0x20 },
 304         { STV090x_P2_DMDCFG2,           0x3b },
 305         { STV090x_P2_MODCODLST0,        0xff },
 306         { STV090x_P2_MODCODLST1,        0xff },
 307         { STV090x_P2_MODCODLST2,        0xff },
 308         { STV090x_P2_MODCODLST3,        0xff },
 309         { STV090x_P2_MODCODLST4,        0xff },
 310         { STV090x_P2_MODCODLST5,        0xff },
 311         { STV090x_P2_MODCODLST6,        0xff },
 312         { STV090x_P2_MODCODLST7,        0xcc },
 313         { STV090x_P2_MODCODLST8,        0xcc },
 314         { STV090x_P2_MODCODLST9,        0xcc },
 315         { STV090x_P2_MODCODLSTA,        0xcc },
 316         { STV090x_P2_MODCODLSTB,        0xcc },
 317         { STV090x_P2_MODCODLSTC,        0xcc },
 318         { STV090x_P2_MODCODLSTD,        0xcc },
 319         { STV090x_P2_MODCODLSTE,        0xcc },
 320         { STV090x_P2_MODCODLSTF,        0xcf },
 321         { STV090x_P1_DISTXCTL,          0x22 },
 322         { STV090x_P1_F22TX,             0xc0 },
 323         { STV090x_P1_F22RX,             0xc0 },
 324         { STV090x_P1_DISRXCTL,          0x00 },
 325         { STV090x_P1_DMDCFGMD,          0xf9 },
 326         { STV090x_P1_DEMOD,             0x08 },
 327         { STV090x_P1_DMDCFG3,           0xc4 },
 328         { STV090x_P1_DMDTOM,            0x20 },
 329         { STV090x_P1_CARFREQ,           0xed },
 330         { STV090x_P1_LDT,               0xd0 },
 331         { STV090x_P1_LDT2,              0xb8 },
 332         { STV090x_P1_TMGCFG,            0xd2 },
 333         { STV090x_P1_TMGTHRISE,         0x20 },
 334         { STV090x_P1_TMGTHFALL,         0x00 },
 335         { STV090x_P1_SFRUPRATIO,        0xf0 },
 336         { STV090x_P1_SFRLOWRATIO,       0x70 },
 337         { STV090x_P1_TSCFGL,            0x20 },
 338         { STV090x_P1_FECSPY,            0x88 },
 339         { STV090x_P1_FSPYDATA,          0x3a },
 340         { STV090x_P1_FBERCPT4,          0x00 },
 341         { STV090x_P1_FSPYBER,           0x10 },
 342         { STV090x_P1_ERRCTRL1,          0x35 },
 343         { STV090x_P1_ERRCTRL2,          0xc1 },
 344         { STV090x_P1_CFRICFG,           0xf8 },
 345         { STV090x_P1_NOSCFG,            0x1c },
 346         { STV090x_P1_CORRELMANT,        0x70 },
 347         { STV090x_P1_CORRELABS,         0x88 },
 348         { STV090x_P1_AGC2O,             0x5b },
 349         { STV090x_P1_AGC2REF,           0x38 },
 350         { STV090x_P1_CARCFG,            0xe4 },
 351         { STV090x_P1_ACLC,              0x1A },
 352         { STV090x_P1_BCLC,              0x09 },
 353         { STV090x_P1_CARHDR,            0x08 },
 354         { STV090x_P1_KREFTMG,           0xc1 },
 355         { STV090x_P1_SFRSTEP,           0x58 },
 356         { STV090x_P1_TMGCFG2,           0x01 },
 357         { STV090x_P1_CAR2CFG,           0x26 },
 358         { STV090x_P1_BCLC2S2Q,          0x86 },
 359         { STV090x_P1_BCLC2S28,          0x86 },
 360         { STV090x_P1_SMAPCOEF7,         0x77 },
 361         { STV090x_P1_SMAPCOEF6,         0x85 },
 362         { STV090x_P1_SMAPCOEF5,         0x77 },
 363         { STV090x_P1_DMDCFG2,           0x3b },
 364         { STV090x_P1_MODCODLST0,        0xff },
 365         { STV090x_P1_MODCODLST1,        0xff },
 366         { STV090x_P1_MODCODLST2,        0xff },
 367         { STV090x_P1_MODCODLST3,        0xff },
 368         { STV090x_P1_MODCODLST4,        0xff },
 369         { STV090x_P1_MODCODLST5,        0xff },
 370         { STV090x_P1_MODCODLST6,        0xff },
 371         { STV090x_P1_MODCODLST7,        0xcc },
 372         { STV090x_P1_MODCODLST8,        0xcc },
 373         { STV090x_P1_MODCODLST9,        0xcc },
 374         { STV090x_P1_MODCODLSTA,        0xcc },
 375         { STV090x_P1_MODCODLSTB,        0xcc },
 376         { STV090x_P1_MODCODLSTC,        0xcc },
 377         { STV090x_P1_MODCODLSTD,        0xcc },
 378         { STV090x_P1_MODCODLSTE,        0xcc },
 379         { STV090x_P1_MODCODLSTF,        0xcf },
 380         { STV090x_GENCFG,               0x1d },
 381         { STV090x_NBITER_NF4,           0x37 },
 382         { STV090x_NBITER_NF5,           0x29 },
 383         { STV090x_NBITER_NF6,           0x37 },
 384         { STV090x_NBITER_NF7,           0x33 },
 385         { STV090x_NBITER_NF8,           0x31 },
 386         { STV090x_NBITER_NF9,           0x2f },
 387         { STV090x_NBITER_NF10,          0x39 },
 388         { STV090x_NBITER_NF11,          0x3a },
 389         { STV090x_NBITER_NF12,          0x29 },
 390         { STV090x_NBITER_NF13,          0x37 },
 391         { STV090x_NBITER_NF14,          0x33 },
 392         { STV090x_NBITER_NF15,          0x2f },
 393         { STV090x_NBITER_NF16,          0x39 },
 394         { STV090x_NBITER_NF17,          0x3a },
 395         { STV090x_NBITERNOERR,          0x04 },
 396         { STV090x_GAINLLR_NF4,          0x0C },
 397         { STV090x_GAINLLR_NF5,          0x0F },
 398         { STV090x_GAINLLR_NF6,          0x11 },
 399         { STV090x_GAINLLR_NF7,          0x14 },
 400         { STV090x_GAINLLR_NF8,          0x17 },
 401         { STV090x_GAINLLR_NF9,          0x19 },
 402         { STV090x_GAINLLR_NF10,         0x20 },
 403         { STV090x_GAINLLR_NF11,         0x21 },
 404         { STV090x_GAINLLR_NF12,         0x0D },
 405         { STV090x_GAINLLR_NF13,         0x0F },
 406         { STV090x_GAINLLR_NF14,         0x13 },
 407         { STV090x_GAINLLR_NF15,         0x1A },
 408         { STV090x_GAINLLR_NF16,         0x1F },
 409         { STV090x_GAINLLR_NF17,         0x21 },
 410         { STV090x_RCCFGH,               0x20 },
 411         { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 412         { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 413         { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 414         { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 415 };
 416
 417 static struct stv090x_reg stv0903_initval[] = {
 418         { STV090x_OUTCFG,               0x00 },
 419         { STV090x_AGCRF1CFG,            0x11 },
 420         { STV090x_STOPCLK1,             0x48 },
 421         { STV090x_STOPCLK2,             0x14 },
 422         { STV090x_TSTTNR1,              0x27 },
 423         { STV090x_TSTTNR2,              0x21 },
 424         { STV090x_P1_DISTXCTL,          0x22 },
 425         { STV090x_P1_F22TX,             0xc0 },
 426         { STV090x_P1_F22RX,             0xc0 },
 427         { STV090x_P1_DISRXCTL,          0x00 },
 428         { STV090x_P1_DMDCFGMD,          0xF9 },
 429         { STV090x_P1_DEMOD,             0x08 },
 430         { STV090x_P1_DMDCFG3,           0xc4 },
 431         { STV090x_P1_CARFREQ,           0xed },
 432         { STV090x_P1_TNRCFG2,           0x82 },
 433         { STV090x_P1_LDT,               0xd0 },
 434         { STV090x_P1_LDT2,              0xb8 },
 435         { STV090x_P1_TMGCFG,            0xd2 },
 436         { STV090x_P1_TMGTHRISE,         0x20 },
 437         { STV090x_P1_TMGTHFALL,         0x00 },
 438         { STV090x_P1_SFRUPRATIO,        0xf0 },
 439         { STV090x_P1_SFRLOWRATIO,       0x70 },
 440         { STV090x_P1_TSCFGL,            0x20 },
 441         { STV090x_P1_FECSPY,            0x88 },
 442         { STV090x_P1_FSPYDATA,          0x3a },
 443         { STV090x_P1_FBERCPT4,          0x00 },
 444         { STV090x_P1_FSPYBER,           0x10 },
 445         { STV090x_P1_ERRCTRL1,          0x35 },
 446         { STV090x_P1_ERRCTRL2,          0xc1 },
 447         { STV090x_P1_CFRICFG,           0xf8 },
 448         { STV090x_P1_NOSCFG,            0x1c },
 449         { STV090x_P1_DMDTOM,            0x20 },
 450         { STV090x_P1_CORRELMANT,        0x70 },
 451         { STV090x_P1_CORRELABS,         0x88 },
 452         { STV090x_P1_AGC2O,             0x5b },
 453         { STV090x_P1_AGC2REF,           0x38 },
 454         { STV090x_P1_CARCFG,            0xe4 },
 455         { STV090x_P1_ACLC,              0x1A },
 456         { STV090x_P1_BCLC,              0x09 },
 457         { STV090x_P1_CARHDR,            0x08 },
 458         { STV090x_P1_KREFTMG,           0xc1 },
 459         { STV090x_P1_SFRSTEP,           0x58 },
 460         { STV090x_P1_TMGCFG2,           0x01 },
 461         { STV090x_P1_CAR2CFG,           0x26 },
 462         { STV090x_P1_BCLC2S2Q,          0x86 },
 463         { STV090x_P1_BCLC2S28,          0x86 },
 464         { STV090x_P1_SMAPCOEF7,         0x77 },
 465         { STV090x_P1_SMAPCOEF6,         0x85 },
 466         { STV090x_P1_SMAPCOEF5,         0x77 },
 467         { STV090x_P1_DMDCFG2,           0x3b },
 468         { STV090x_P1_MODCODLST0,        0xff },
 469         { STV090x_P1_MODCODLST1,        0xff },
 470         { STV090x_P1_MODCODLST2,        0xff },
 471         { STV090x_P1_MODCODLST3,        0xff },
 472         { STV090x_P1_MODCODLST4,        0xff },
 473         { STV090x_P1_MODCODLST5,        0xff },
 474         { STV090x_P1_MODCODLST6,        0xff },
 475         { STV090x_P1_MODCODLST7,        0xcc },
 476         { STV090x_P1_MODCODLST8,        0xcc },
 477         { STV090x_P1_MODCODLST9,        0xcc },
 478         { STV090x_P1_MODCODLSTA,        0xcc },
 479         { STV090x_P1_MODCODLSTB,        0xcc },
 480         { STV090x_P1_MODCODLSTC,        0xcc },
 481         { STV090x_P1_MODCODLSTD,        0xcc },
 482         { STV090x_P1_MODCODLSTE,        0xcc },
 483         { STV090x_P1_MODCODLSTF,        0xcf },
 484         { STV090x_GENCFG,               0x1c },
 485         { STV090x_NBITER_NF4,           0x37 },
 486         { STV090x_NBITER_NF5,           0x29 },
 487         { STV090x_NBITER_NF6,           0x37 },
 488         { STV090x_NBITER_NF7,           0x33 },
 489         { STV090x_NBITER_NF8,           0x31 },
 490         { STV090x_NBITER_NF9,           0x2f },
 491         { STV090x_NBITER_NF10,          0x39 },
 492         { STV090x_NBITER_NF11,          0x3a },
 493         { STV090x_NBITER_NF12,          0x29 },
 494         { STV090x_NBITER_NF13,          0x37 },
 495         { STV090x_NBITER_NF14,          0x33 },
 496         { STV090x_NBITER_NF15,          0x2f },
 497         { STV090x_NBITER_NF16,          0x39 },
 498         { STV090x_NBITER_NF17,          0x3a },
 499         { STV090x_NBITERNOERR,          0x04 },
 500         { STV090x_GAINLLR_NF4,          0x0C },
 501         { STV090x_GAINLLR_NF5,          0x0F },
 502         { STV090x_GAINLLR_NF6,          0x11 },
 503         { STV090x_GAINLLR_NF7,          0x14 },
 504         { STV090x_GAINLLR_NF8,          0x17 },
 505         { STV090x_GAINLLR_NF9,          0x19 },
 506         { STV090x_GAINLLR_NF10,         0x20 },
 507         { STV090x_GAINLLR_NF11,         0x21 },
 508         { STV090x_GAINLLR_NF12,         0x0D },
 509         { STV090x_GAINLLR_NF13,         0x0F },
 510         { STV090x_GAINLLR_NF14,         0x13 },
 511         { STV090x_GAINLLR_NF15,         0x1A },
 512         { STV090x_GAINLLR_NF16,         0x1F },
 513         { STV090x_GAINLLR_NF17,         0x21 },
 514         { STV090x_RCCFGH,               0x20 },
 515         { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 516         { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 517 };
 518
 519 static struct stv090x_reg stv0900_cut20_val[] = {
 520
 521         { STV090x_P2_DMDCFG3,           0xe8 },
 522         { STV090x_P2_DMDCFG4,           0x10 },
 523         { STV090x_P2_CARFREQ,           0x38 },
 524         { STV090x_P2_CARHDR,            0x20 },
 525         { STV090x_P2_KREFTMG,           0x5a },
 526         { STV090x_P2_SMAPCOEF7,         0x06 },
 527         { STV090x_P2_SMAPCOEF6,         0x00 },
 528         { STV090x_P2_SMAPCOEF5,         0x04 },
 529         { STV090x_P2_NOSCFG,            0x0c },
 530         { STV090x_P1_DMDCFG3,           0xe8 },
 531         { STV090x_P1_DMDCFG4,           0x10 },
 532         { STV090x_P1_CARFREQ,           0x38 },
 533         { STV090x_P1_CARHDR,            0x20 },
 534         { STV090x_P1_KREFTMG,           0x5a },
 535         { STV090x_P1_SMAPCOEF7,         0x06 },
 536         { STV090x_P1_SMAPCOEF6,         0x00 },
 537         { STV090x_P1_SMAPCOEF5,         0x04 },
 538         { STV090x_P1_NOSCFG,            0x0c },
 539         { STV090x_GAINLLR_NF4,          0x21 },
 540         { STV090x_GAINLLR_NF5,          0x21 },
 541         { STV090x_GAINLLR_NF6,          0x20 },
 542         { STV090x_GAINLLR_NF7,          0x1F },
 543         { STV090x_GAINLLR_NF8,          0x1E },
 544         { STV090x_GAINLLR_NF9,          0x1E },
 545         { STV090x_GAINLLR_NF10,         0x1D },
 546         { STV090x_GAINLLR_NF11,         0x1B },
 547         { STV090x_GAINLLR_NF12,         0x20 },
 548         { STV090x_GAINLLR_NF13,         0x20 },
 549         { STV090x_GAINLLR_NF14,         0x20 },
 550         { STV090x_GAINLLR_NF15,         0x20 },
 551         { STV090x_GAINLLR_NF16,         0x20 },
 552         { STV090x_GAINLLR_NF17,         0x21 },
 553 };
 554
 555 static struct stv090x_reg stv0903_cut20_val[] = {
 556         { STV090x_P1_DMDCFG3,           0xe8 },
 557         { STV090x_P1_DMDCFG4,           0x10 },
 558         { STV090x_P1_CARFREQ,           0x38 },
 559         { STV090x_P1_CARHDR,            0x20 },
 560         { STV090x_P1_KREFTMG,           0x5a },
 561         { STV090x_P1_SMAPCOEF7,         0x06 },
 562         { STV090x_P1_SMAPCOEF6,         0x00 },
 563         { STV090x_P1_SMAPCOEF5,         0x04 },
 564         { STV090x_P1_NOSCFG,            0x0c },
 565         { STV090x_GAINLLR_NF4,          0x21 },
 566         { STV090x_GAINLLR_NF5,          0x21 },
 567         { STV090x_GAINLLR_NF6,          0x20 },
 568         { STV090x_GAINLLR_NF7,          0x1F },
 569         { STV090x_GAINLLR_NF8,          0x1E },
 570         { STV090x_GAINLLR_NF9,          0x1E },
 571         { STV090x_GAINLLR_NF10,         0x1D },
 572         { STV090x_GAINLLR_NF11,         0x1B },
 573         { STV090x_GAINLLR_NF12,         0x20 },
 574         { STV090x_GAINLLR_NF13,         0x20 },
 575         { STV090x_GAINLLR_NF14,         0x20 },
 576         { STV090x_GAINLLR_NF15,         0x20 },
 577         { STV090x_GAINLLR_NF16,         0x20 },
 578         { STV090x_GAINLLR_NF17,         0x21 }
 579 };
 580
 581 /* Cut 2.0 Long Frame Tracking CR loop */
 582 static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 583         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 584         { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 585         { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 586         { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 587         { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 588         { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 589         { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 590         { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 591         { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 592         { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 593         { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 594         { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 595         { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 596         { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 597         { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 598 };
 599
 600 /* Cut 3.0 Long Frame Tracking CR loop */
 601 static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
 602         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 603         { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
 604         { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 605         { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 606         { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 607         { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 608         { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 609         { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 610         { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 611         { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
 612         { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
 613         { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
 614         { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
 615         { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
 616         { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
 617 };
 618
 619 /* Cut 2.0 Long Frame Tracking CR Loop */
 620 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 621         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 622         { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 623         { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 624         { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 625         { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 626         { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 627         { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 628         { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 629         { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 630         { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 631         { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 632         { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 633 };
 634
 635 /* Cut 3.0 Long Frame Tracking CR Loop */
 636 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
 637         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 638         { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
 639         { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
 640         { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 641         { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 642         { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 643         { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 644         { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 645         { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 646         { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 647         { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 648         { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
 649 };
 650
 651 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 652         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 653         { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 654         { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 655         { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 656 };
 657
 658 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
 659         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 660         { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
 661         { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
 662         { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
 663 };
 664
 665 /* Cut 2.0 Short Frame Tracking CR Loop */
 666 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
 667         /* MODCOD         2M    5M    10M   20M   30M */
 668         { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
 669         { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
 670         { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
 671         { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
 672 };
 673
 674 /* Cut 3.0 Short Frame Tracking CR Loop */
 675 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
 676         /* MODCOD         2M    5M    10M   20M   30M */
 677         { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
 678         { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
 679         { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
 680         { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
 681 };
 682
 683 static inline s32 comp2(s32 __x, s32 __width)
 684 {
 685         if (__width == 32)
 686                 return __x;
 687         else
 688                 return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 689 }
 690
 691 static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 692 {
 693         const struct stv090x_config *config = state->config;
 694         int ret;
 695
 696         u8 b0[] = { reg >> 8, reg & 0xff };
 697         u8 buf;
 698
 699         struct i2c_msg msg[] = {
 700                 { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 701                 { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 702         };
 703
 704         ret = i2c_transfer(state->i2c, msg, 2);
 705         if (ret != 2) {
 706                 if (ret != -ERESTARTSYS)
 707                         dprintk(FE_ERROR, 1,
 708                                 "Read error, Reg=[0x%02x], Status=%d",
 709                                 reg, ret);
 710
 711                 return ret < 0 ? ret : -EREMOTEIO;
 712         }
 713         if (unlikely(*state->verbose >= FE_DEBUGREG))
 714                 dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 715                         reg, buf);
 716
 717         return (unsigned int) buf;
 718 }
 719
 720 static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 721 {
 722         const struct stv090x_config *config = state->config;
 723         int ret;
 724         u8 buf[2 + count];
 725         struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 726
 727         buf[0] = reg >> 8;
 728         buf[1] = reg & 0xff;
 729         memcpy(&buf[2], data, count);
 730
 731         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 732                 int i;
 733
 734                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 735                 for (i = 0; i < count; i++)
 736                         printk(" %02x", data[i]);
 737                 printk("\n");
 738         }
 739
 740         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 741         if (ret != 1) {
 742                 if (ret != -ERESTARTSYS)
 743                         dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 744                                 reg, data[0], count, ret);
 745                 return ret < 0 ? ret : -EREMOTEIO;
 746         }
 747
 748         return 0;
 749 }
 750
 751 static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 752 {
 753         return stv090x_write_regs(state, reg, &data, 1);
 754 }
 755
 756 static int stv090x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
 757 {
 758         struct stv090x_state *state = fe->demodulator_priv;
 759         u32 reg;
 760
 761         if (enable)
 762                 mutex_lock(&state->internal->tuner_lock);
 763
 764         reg = STV090x_READ_DEMOD(state, I2CRPT);
 765         if (enable) {
 766                 dprintk(FE_DEBUG, 1, "Enable Gate");
 767                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 768                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 769                         goto err;
 770
 771         } else {
 772                 dprintk(FE_DEBUG, 1, "Disable Gate");
 773                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 774                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 775                         goto err;
 776         }
 777
 778         if (!enable)
 779                 mutex_unlock(&state->internal->tuner_lock);
 780
 781         return 0;
 782 err:
 783         dprintk(FE_ERROR, 1, "I/O error");
 784         mutex_unlock(&state->internal->tuner_lock);
 785         return -1;
 786 }
 787
 788 static void stv090x_get_lock_tmg(struct stv090x_state *state)
 789 {
 790         switch (state->algo) {
 791         case STV090x_BLIND_SEARCH:
 792                 dprintk(FE_DEBUG, 1, "Blind Search");
 793                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 794                         state->DemodTimeout = 1500;
 795                         state->FecTimeout = 400;
 796                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 797                         state->DemodTimeout = 1000;
 798                         state->FecTimeout = 300;
 799                 } else {  /*SR >20Msps*/
 800                         state->DemodTimeout = 700;
 801                         state->FecTimeout = 100;
 802                 }
 803                 break;
 804
 805         case STV090x_COLD_SEARCH:
 806         case STV090x_WARM_SEARCH:
 807         default:
 808                 dprintk(FE_DEBUG, 1, "Normal Search");
 809                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
 810                         state->DemodTimeout = 4500;
 811                         state->FecTimeout = 1700;
 812                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 813                         state->DemodTimeout = 2500;
 814                         state->FecTimeout = 1100;
 815                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 816                         state->DemodTimeout = 1000;
 817                         state->FecTimeout = 550;
 818                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 819                         state->DemodTimeout = 700;
 820                         state->FecTimeout = 250;
 821                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 822                         state->DemodTimeout = 400;
 823                         state->FecTimeout = 130;
 824                 } else {   /*SR >20Msps*/
 825                         state->DemodTimeout = 300;
 826                         state->FecTimeout = 100;
 827                 }
 828                 break;
 829         }
 830
 831         if (state->algo == STV090x_WARM_SEARCH)
 832                 state->DemodTimeout /= 2;
 833 }
 834
 835 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 836 {
 837         u32 sym;
 838
 839         if (srate > 60000000) {
 840                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 841                 sym /= (state->internal->mclk >> 12);
 842         } else if (srate > 6000000) {
 843                 sym  = (srate << 6);
 844                 sym /= (state->internal->mclk >> 10);
 845         } else {
 846                 sym  = (srate << 9);
 847                 sym /= (state->internal->mclk >> 7);
 848         }
 849
 850         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 851                 goto err;
 852         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 853                 goto err;
 854
 855         return 0;
 856 err:
 857         dprintk(FE_ERROR, 1, "I/O error");
 858         return -1;
 859 }
 860
 861 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 862 {
 863         u32 sym;
 864
 865         srate = 105 * (srate / 100);
 866         if (srate > 60000000) {
 867                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 868                 sym /= (state->internal->mclk >> 12);
 869         } else if (srate > 6000000) {
 870                 sym  = (srate << 6);
 871                 sym /= (state->internal->mclk >> 10);
 872         } else {
 873                 sym  = (srate << 9);
 874                 sym /= (state->internal->mclk >> 7);
 875         }
 876
 877         if (sym < 0x7fff) {
 878                 if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 879                         goto err;
 880                 if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 881                         goto err;
 882         } else {
 883                 if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 884                         goto err;
 885                 if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 886                         goto err;
 887         }
 888
 889         return 0;
 890 err:
 891         dprintk(FE_ERROR, 1, "I/O error");
 892         return -1;
 893 }
 894
 895 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 896 {
 897         u32 sym;
 898
 899         srate = 95 * (srate / 100);
 900         if (srate > 60000000) {
 901                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 902                 sym /= (state->internal->mclk >> 12);
 903         } else if (srate > 6000000) {
 904                 sym  = (srate << 6);
 905                 sym /= (state->internal->mclk >> 10);
 906         } else {
 907                 sym  = (srate << 9);
 908                 sym /= (state->internal->mclk >> 7);
 909         }
 910
 911         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 912                 goto err;
 913         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 914                 goto err;
 915         return 0;
 916 err:
 917         dprintk(FE_ERROR, 1, "I/O error");
 918         return -1;
 919 }
 920
 921 static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 922 {
 923         u32 ro;
 924
 925         switch (rolloff) {
 926         case STV090x_RO_20:
 927                 ro = 20;
 928                 break;
 929         case STV090x_RO_25:
 930                 ro = 25;
 931                 break;
 932         case STV090x_RO_35:
 933         default:
 934                 ro = 35;
 935                 break;
 936         }
 937
 938         return srate + (srate * ro) / 100;
 939 }
 940
 941 static int stv090x_set_vit_thacq(struct stv090x_state *state)
 942 {
 943         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 944                 goto err;
 945         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 946                 goto err;
 947         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 948                 goto err;
 949         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 950                 goto err;
 951         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 952                 goto err;
 953         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 954                 goto err;
 955         return 0;
 956 err:
 957         dprintk(FE_ERROR, 1, "I/O error");
 958         return -1;
 959 }
 960
 961 static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 962 {
 963         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 964                 goto err;
 965         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 966                 goto err;
 967         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 968                 goto err;
 969         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 970                 goto err;
 971         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 972                 goto err;
 973         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 974                 goto err;
 975         return 0;
 976 err:
 977         dprintk(FE_ERROR, 1, "I/O error");
 978         return -1;
 979 }
 980
 981 static int stv090x_set_viterbi(struct stv090x_state *state)
 982 {
 983         switch (state->search_mode) {
 984         case STV090x_SEARCH_AUTO:
 985                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
 986                         goto err;
 987                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
 988                         goto err;
 989                 break;
 990         case STV090x_SEARCH_DVBS1:
 991                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
 992                         goto err;
 993                 switch (state->fec) {
 994                 case STV090x_PR12:
 995                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
 996                                 goto err;
 997                         break;
 998
 999                 case STV090x_PR23:
1000                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1001                                 goto err;
1002                         break;
1003
1004                 case STV090x_PR34:
1005                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1006                                 goto err;
1007                         break;
1008
1009                 case STV090x_PR56:
1010                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1011                                 goto err;
1012                         break;
1013
1014                 case STV090x_PR78:
1015                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1016                                 goto err;
1017                         break;
1018
1019                 default:
1020                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1021                                 goto err;
1022                         break;
1023                 }
1024                 break;
1025         case STV090x_SEARCH_DSS:
1026                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1027                         goto err;
1028                 switch (state->fec) {
1029                 case STV090x_PR12:
1030                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1031                                 goto err;
1032                         break;
1033
1034                 case STV090x_PR23:
1035                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1036                                 goto err;
1037                         break;
1038
1039                 case STV090x_PR67:
1040                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1041                                 goto err;
1042                         break;
1043
1044                 default:
1045                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1046                                 goto err;
1047                         break;
1048                 }
1049                 break;
1050         default:
1051                 break;
1052         }
1053         return 0;
1054 err:
1055         dprintk(FE_ERROR, 1, "I/O error");
1056         return -1;
1057 }
1058
1059 static int stv090x_stop_modcod(struct stv090x_state *state)
1060 {
1061         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1062                 goto err;
1063         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1064                 goto err;
1065         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1066                 goto err;
1067         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1068                 goto err;
1069         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1070                 goto err;
1071         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1072                 goto err;
1073         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1074                 goto err;
1075         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1076                 goto err;
1077         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1078                 goto err;
1079         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1080                 goto err;
1081         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1082                 goto err;
1083         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1084                 goto err;
1085         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1086                 goto err;
1087         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1088                 goto err;
1089         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1090                 goto err;
1091         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1092                 goto err;
1093         return 0;
1094 err:
1095         dprintk(FE_ERROR, 1, "I/O error");
1096         return -1;
1097 }
1098
1099 static int stv090x_activate_modcod(struct stv090x_state *state)
1100 {
1101         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1102                 goto err;
1103         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1104                 goto err;
1105         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1106                 goto err;
1107         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1108                 goto err;
1109         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1110                 goto err;
1111         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1112                 goto err;
1113         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1114                 goto err;
1115         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1116                 goto err;
1117         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1118                 goto err;
1119         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1120                 goto err;
1121         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1122                 goto err;
1123         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1124                 goto err;
1125         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1126                 goto err;
1127         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1128                 goto err;
1129         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1130                 goto err;
1131         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1132                 goto err;
1133
1134         return 0;
1135 err:
1136         dprintk(FE_ERROR, 1, "I/O error");
1137         return -1;
1138 }
1139
1140 static int stv090x_activate_modcod_single(struct stv090x_state *state)
1141 {
1142
1143         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1144                 goto err;
1145         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1146                 goto err;
1147         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1148                 goto err;
1149         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1150                 goto err;
1151         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1152                 goto err;
1153         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1154                 goto err;
1155         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1156                 goto err;
1157         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1158                 goto err;
1159         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1160                 goto err;
1161         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1162                 goto err;
1163         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1164                 goto err;
1165         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1166                 goto err;
1167         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1168                 goto err;
1169         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1170                 goto err;
1171         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1172                 goto err;
1173         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1174                 goto err;
1175
1176         return 0;
1177
1178 err:
1179         dprintk(FE_ERROR, 1, "I/O error");
1180         return -1;
1181 }
1182
1183 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1184 {
1185         u32 reg;
1186
1187         switch (state->demod) {
1188         case STV090x_DEMODULATOR_0:
1189                 mutex_lock(&state->internal->demod_lock);
1190                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1191                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1192                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1193                         goto err;
1194                 mutex_unlock(&state->internal->demod_lock);
1195                 break;
1196
1197         case STV090x_DEMODULATOR_1:
1198                 mutex_lock(&state->internal->demod_lock);
1199                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1200                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1201                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1202                         goto err;
1203                 mutex_unlock(&state->internal->demod_lock);
1204                 break;
1205
1206         default:
1207                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1208                 break;
1209         }
1210         return 0;
1211 err:
1212         mutex_unlock(&state->internal->demod_lock);
1213         dprintk(FE_ERROR, 1, "I/O error");
1214         return -1;
1215 }
1216
1217 static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1218 {
1219         if (state->internal->dev_ver >= 0x30) {
1220                 /* Set ACLC BCLC optimised value vs SR */
1221                 if (state->srate >= 15000000) {
1222                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1223                                 goto err;
1224                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1225                                 goto err;
1226                 } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1227                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1228                                 goto err;
1229                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1230                                 goto err;
1231                 } else if (state->srate < 7000000) {
1232                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1233                                 goto err;
1234                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1235                                 goto err;
1236                 }
1237
1238         } else {
1239                 /* Cut 2.0 */
1240                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1241                         goto err;
1242                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1243                         goto err;
1244         }
1245         return 0;
1246 err:
1247         dprintk(FE_ERROR, 1, "I/O error");
1248         return -1;
1249 }
1250
1251 static int stv090x_delivery_search(struct stv090x_state *state)
1252 {
1253         u32 reg;
1254
1255         switch (state->search_mode) {
1256         case STV090x_SEARCH_DVBS1:
1257         case STV090x_SEARCH_DSS:
1258                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1259                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1260                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1261                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1262                         goto err;
1263
1264                 /* Activate Viterbi decoder in legacy search,
1265                  * do not use FRESVIT1, might impact VITERBI2
1266                  */
1267                 if (stv090x_vitclk_ctl(state, 0) < 0)
1268                         goto err;
1269
1270                 if (stv090x_dvbs_track_crl(state) < 0)
1271                         goto err;
1272
1273                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1274                         goto err;
1275
1276                 if (stv090x_set_vit_thacq(state) < 0)
1277                         goto err;
1278                 if (stv090x_set_viterbi(state) < 0)
1279                         goto err;
1280                 break;
1281
1282         case STV090x_SEARCH_DVBS2:
1283                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1284                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1285                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1286                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1287                         goto err;
1288                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1289                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1290                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1291                         goto err;
1292
1293                 if (stv090x_vitclk_ctl(state, 1) < 0)
1294                         goto err;
1295
1296                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1297                         goto err;
1298                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1299                         goto err;
1300
1301                 if (state->internal->dev_ver <= 0x20) {
1302                         /* enable S2 carrier loop */
1303                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1304                                 goto err;
1305                 } else {
1306                         /* > Cut 3: Stop carrier 3 */
1307                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1308                                 goto err;
1309                 }
1310
1311                 if (state->demod_mode != STV090x_SINGLE) {
1312                         /* Cut 2: enable link during search */
1313                         if (stv090x_activate_modcod(state) < 0)
1314                                 goto err;
1315                 } else {
1316                         /* Single demodulator
1317                          * Authorize SHORT and LONG frames,
1318                          * QPSK, 8PSK, 16APSK and 32APSK
1319                          */
1320                         if (stv090x_activate_modcod_single(state) < 0)
1321                                 goto err;
1322                 }
1323
1324                 if (stv090x_set_vit_thtracq(state) < 0)
1325                         goto err;
1326                 break;
1327
1328         case STV090x_SEARCH_AUTO:
1329         default:
1330                 /* enable DVB-S2 and DVB-S2 in Auto MODE */
1331                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1332                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1333                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1334                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1335                         goto err;
1336                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1337                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1338                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1339                         goto err;
1340
1341                 if (stv090x_vitclk_ctl(state, 0) < 0)
1342                         goto err;
1343
1344                 if (stv090x_dvbs_track_crl(state) < 0)
1345                         goto err;
1346
1347                 if (state->internal->dev_ver <= 0x20) {
1348                         /* enable S2 carrier loop */
1349                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1350                                 goto err;
1351                 } else {
1352                         /* > Cut 3: Stop carrier 3 */
1353                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1354                                 goto err;
1355                 }
1356
1357                 if (state->demod_mode != STV090x_SINGLE) {
1358                         /* Cut 2: enable link during search */
1359                         if (stv090x_activate_modcod(state) < 0)
1360                                 goto err;
1361                 } else {
1362                         /* Single demodulator
1363                          * Authorize SHORT and LONG frames,
1364                          * QPSK, 8PSK, 16APSK and 32APSK
1365                          */
1366                         if (stv090x_activate_modcod_single(state) < 0)
1367                                 goto err;
1368                 }
1369
1370                 if (stv090x_set_vit_thacq(state) < 0)
1371                         goto err;
1372
1373                 if (stv090x_set_viterbi(state) < 0)
1374                         goto err;
1375                 break;
1376         }
1377         return 0;
1378 err:
1379         dprintk(FE_ERROR, 1, "I/O error");
1380         return -1;
1381 }
1382
1383 static int stv090x_start_search(struct stv090x_state *state)
1384 {
1385         u32 reg, freq_abs;
1386         s16 freq;
1387
1388         /* Reset demodulator */
1389         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1390         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1391         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1392                 goto err;
1393
1394         if (state->internal->dev_ver <= 0x20) {
1395                 if (state->srate <= 5000000) {
1396                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1397                                 goto err;
1398                         if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1399                                 goto err;
1400                         if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1401                                 goto err;
1402                         if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1403                                 goto err;
1404                         if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1405                                 goto err;
1406
1407                         /*enlarge the timing bandwith for Low SR*/
1408                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1409                                 goto err;
1410                 } else {
1411                         /* If the symbol rate is >5 Msps
1412                         Set The carrier search up and low to auto mode */
1413                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1414                                 goto err;
1415                         /*reduce the timing bandwith for high SR*/
1416                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1417                                 goto err;
1418                 }
1419         } else {
1420                 /* >= Cut 3 */
1421                 if (state->srate <= 5000000) {
1422                         /* enlarge the timing bandwith for Low SR */
1423                         STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1424                 } else {
1425                         /* reduce timing bandwith for high SR */
1426                         STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1427                 }
1428
1429                 /* Set CFR min and max to manual mode */
1430                 STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1431
1432                 if (state->algo == STV090x_WARM_SEARCH) {
1433                         /* WARM Start
1434                          * CFR min = -1MHz,
1435                          * CFR max = +1MHz
1436                          */
1437                         freq_abs  = 1000 << 16;
1438                         freq_abs /= (state->internal->mclk / 1000);
1439                         freq      = (s16) freq_abs;
1440                 } else {
1441                         /* COLD Start
1442                          * CFR min =- (SearchRange / 2 + 600KHz)
1443                          * CFR max = +(SearchRange / 2 + 600KHz)
1444                          * (600KHz for the tuner step size)
1445                          */
1446                         freq_abs  = (state->search_range / 2000) + 600;
1447                         freq_abs  = freq_abs << 16;
1448                         freq_abs /= (state->internal->mclk / 1000);
1449                         freq      = (s16) freq_abs;
1450                 }
1451
1452                 if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1453                         goto err;
1454                 if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1455                         goto err;
1456
1457                 freq *= -1;
1458
1459                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1460                         goto err;
1461                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1462                         goto err;
1463
1464         }
1465
1466         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1467                 goto err;
1468         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1469                 goto err;
1470
1471         if (state->internal->dev_ver >= 0x20) {
1472                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1473                         goto err;
1474                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1475                         goto err;
1476
1477                 if ((state->search_mode == STV090x_DVBS1)       ||
1478                         (state->search_mode == STV090x_DSS)     ||
1479                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1480
1481                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1482                                 goto err;
1483                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1484                                 goto err;
1485                 }
1486         }
1487
1488         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1489                 goto err;
1490         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1491                 goto err;
1492         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1493                 goto err;
1494
1495         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1496         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1497         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1498         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1499                 goto err;
1500         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1501         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1502         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1503                 goto err;
1504
1505         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1506                 goto err;
1507
1508         if (state->internal->dev_ver >= 0x20) {
1509                 /*Frequency offset detector setting*/
1510                 if (state->srate < 2000000) {
1511                         if (state->internal->dev_ver <= 0x20) {
1512                                 /* Cut 2 */
1513                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1514                                         goto err;
1515                         } else {
1516                                 /* Cut 3 */
1517                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1518                                         goto err;
1519                         }
1520                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1521                                 goto err;
1522                 } else if (state->srate < 10000000) {
1523                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1524                                 goto err;
1525                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1526                                 goto err;
1527                 } else {
1528                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1529                                 goto err;
1530                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1531                                 goto err;
1532                 }
1533         } else {
1534                 if (state->srate < 10000000) {
1535                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1536                                 goto err;
1537                 } else {
1538                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1539                                 goto err;
1540                 }
1541         }
1542
1543         switch (state->algo) {
1544         case STV090x_WARM_SEARCH:
1545                 /* The symbol rate and the exact
1546                  * carrier Frequency are known
1547                  */
1548                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1549                         goto err;
1550                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1551                         goto err;
1552                 break;
1553
1554         case STV090x_COLD_SEARCH:
1555                 /* The symbol rate is known */
1556                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1557                         goto err;
1558                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1559                         goto err;
1560                 break;
1561
1562         default:
1563                 break;
1564         }
1565         return 0;
1566 err:
1567         dprintk(FE_ERROR, 1, "I/O error");
1568         return -1;
1569 }
1570
1571 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1572 {
1573         u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1574         s32 i, j, steps, dir;
1575
1576         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1577                 goto err;
1578         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1579         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1580         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1581         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1582                 goto err;
1583
1584         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1585                 goto err;
1586         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1587                 goto err;
1588         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1589                 goto err;
1590         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1591                 goto err;
1592         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1593                 goto err;
1594         if (stv090x_set_srate(state, 1000000) < 0)
1595                 goto err;
1596
1597         steps  = state->search_range / 1000000;
1598         if (steps <= 0)
1599                 steps = 1;
1600
1601         dir = 1;
1602         freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1603         freq_init = 0;
1604
1605         for (i = 0; i < steps; i++) {
1606                 if (dir > 0)
1607                         freq_init = freq_init + (freq_step * i);
1608                 else
1609                         freq_init = freq_init - (freq_step * i);
1610
1611                 dir *= -1;
1612
1613                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1614                         goto err;
1615                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1616                         goto err;
1617                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1618                         goto err;
1619                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1620                         goto err;
1621                 msleep(10);
1622
1623                 agc2 = 0;
1624                 for (j = 0; j < 10; j++) {
1625                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1626                                 STV090x_READ_DEMOD(state, AGC2I0);
1627                 }
1628                 agc2 /= 10;
1629                 if (agc2 < agc2_min)
1630                         agc2_min = agc2;
1631         }
1632
1633         return agc2_min;
1634 err:
1635         dprintk(FE_ERROR, 1, "I/O error");
1636         return -1;
1637 }
1638
1639 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1640 {
1641         u8 r3, r2, r1, r0;
1642         s32 srate, int_1, int_2, tmp_1, tmp_2;
1643
1644         r3 = STV090x_READ_DEMOD(state, SFR3);
1645         r2 = STV090x_READ_DEMOD(state, SFR2);
1646         r1 = STV090x_READ_DEMOD(state, SFR1);
1647         r0 = STV090x_READ_DEMOD(state, SFR0);
1648
1649         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1650
1651         int_1 = clk >> 16;
1652         int_2 = srate >> 16;
1653
1654         tmp_1 = clk % 0x10000;
1655         tmp_2 = srate % 0x10000;
1656
1657         srate = (int_1 * int_2) +
1658                 ((int_1 * tmp_2) >> 16) +
1659                 ((int_2 * tmp_1) >> 16);
1660
1661         return srate;
1662 }
1663
1664 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1665 {
1666         struct dvb_frontend *fe = &state->frontend;
1667
1668         int tmg_lock = 0, i;
1669         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1670         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1671         u32 agc2th;
1672
1673         if (state->internal->dev_ver >= 0x30)
1674                 agc2th = 0x2e00;
1675         else
1676                 agc2th = 0x1f00;
1677
1678         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1679         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1680         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1681                 goto err;
1682         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1683                 goto err;
1684         if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1685                 goto err;
1686         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1687                 goto err;
1688         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1689                 goto err;
1690         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1691         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1692         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1693         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1694                 goto err;
1695
1696         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1697                 goto err;
1698         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1699                 goto err;
1700         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1701                 goto err;
1702         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1703                 goto err;
1704         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1705                 goto err;
1706         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1707                 goto err;
1708
1709         if (state->internal->dev_ver >= 0x30) {
1710                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1711                         goto err;
1712                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1713                         goto err;
1714
1715         } else if (state->internal->dev_ver >= 0x20) {
1716                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1717                         goto err;
1718                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1719                         goto err;
1720         }
1721
1722         if (state->srate <= 2000000)
1723                 car_step = 1000;
1724         else if (state->srate <= 5000000)
1725                 car_step = 2000;
1726         else if (state->srate <= 12000000)
1727                 car_step = 3000;
1728         else
1729                 car_step = 5000;
1730
1731         steps  = -1 + ((state->search_range / 1000) / car_step);
1732         steps /= 2;
1733         steps  = (2 * steps) + 1;
1734         if (steps < 0)
1735                 steps = 1;
1736         else if (steps > 10) {
1737                 steps = 11;
1738                 car_step = (state->search_range / 1000) / 10;
1739         }
1740         cur_step = 0;
1741         dir = 1;
1742         freq = state->frequency;
1743
1744         while ((!tmg_lock) && (cur_step < steps)) {
1745                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1746                         goto err;
1747                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1748                         goto err;
1749                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1750                         goto err;
1751                 if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1752                         goto err;
1753                 if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1754                         goto err;
1755                 /* trigger acquisition */
1756                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1757                         goto err;
1758                 msleep(50);
1759                 for (i = 0; i < 10; i++) {
1760                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1761                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1762                                 tmg_cpt++;
1763                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1764                                 STV090x_READ_DEMOD(state, AGC2I0);
1765                 }
1766                 agc2 /= 10;
1767                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1768                 cur_step++;
1769                 dir *= -1;
1770                 if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1771                     (srate_coarse < 50000000) && (srate_coarse > 850000))
1772                         tmg_lock = 1;
1773                 else if (cur_step < steps) {
1774                         if (dir > 0)
1775                                 freq += cur_step * car_step;
1776                         else
1777                                 freq -= cur_step * car_step;
1778
1779                         /* Setup tuner */
1780                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
1781                                 goto err;
1782
1783                         if (state->config->tuner_set_frequency) {
1784                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
1785                                         goto err;
1786                         }
1787
1788                         if (state->config->tuner_set_bandwidth) {
1789                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1790                                         goto err;
1791                         }
1792
1793                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
1794                                 goto err;
1795
1796                         msleep(50);
1797
1798                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
1799                                 goto err;
1800
1801                         if (state->config->tuner_get_status) {
1802                                 if (state->config->tuner_get_status(fe, &reg) < 0)
1803                                         goto err;
1804                         }
1805
1806                         if (reg)
1807                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1808                         else
1809                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1810
1811                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
1812                                 goto err;
1813
1814                 }
1815         }
1816         if (!tmg_lock)
1817                 srate_coarse = 0;
1818         else
1819                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1820
1821         return srate_coarse;
1822 err:
1823         dprintk(FE_ERROR, 1, "I/O error");
1824         return -1;
1825 }
1826
1827 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1828 {
1829         u32 srate_coarse, freq_coarse, sym, reg;
1830
1831         srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1832         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1833         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1834         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1835
1836         if (sym < state->srate)
1837                 srate_coarse = 0;
1838         else {
1839                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1840                         goto err;
1841                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1842                         goto err;
1843                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1844                         goto err;
1845                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1846                         goto err;
1847                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1848                         goto err;
1849                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1850                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1851                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1852                         goto err;
1853
1854                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1855                         goto err;
1856
1857                 if (state->internal->dev_ver >= 0x30) {
1858                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1859                                 goto err;
1860                 } else if (state->internal->dev_ver >= 0x20) {
1861                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1862                                 goto err;
1863                 }
1864
1865                 if (srate_coarse > 3000000) {
1866                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1867                         sym  = (sym / 1000) * 65536;
1868                         sym /= (state->internal->mclk / 1000);
1869                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1870                                 goto err;
1871                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1872                                 goto err;
1873                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1874                         sym  = (sym / 1000) * 65536;
1875                         sym /= (state->internal->mclk / 1000);
1876                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1877                                 goto err;
1878                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1879                                 goto err;
1880                         sym  = (srate_coarse / 1000) * 65536;
1881                         sym /= (state->internal->mclk / 1000);
1882                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1883                                 goto err;
1884                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1885                                 goto err;
1886                 } else {
1887                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1888                         sym  = (sym / 100) * 65536;
1889                         sym /= (state->internal->mclk / 100);
1890                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1891                                 goto err;
1892                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1893                                 goto err;
1894                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1895                         sym  = (sym / 100) * 65536;
1896                         sym /= (state->internal->mclk / 100);
1897                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1898                                 goto err;
1899                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1900                                 goto err;
1901                         sym  = (srate_coarse / 100) * 65536;
1902                         sym /= (state->internal->mclk / 100);
1903                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1904                                 goto err;
1905                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1906                                 goto err;
1907                 }
1908                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1909                         goto err;
1910                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1911                         goto err;
1912                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1913                         goto err;
1914                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1915                         goto err;
1916         }
1917
1918         return srate_coarse;
1919
1920 err:
1921         dprintk(FE_ERROR, 1, "I/O error");
1922         return -1;
1923 }
1924
1925 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1926 {
1927         s32 timer = 0, lock = 0;
1928         u32 reg;
1929         u8 stat;
1930
1931         while ((timer < timeout) && (!lock)) {
1932                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1933                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1934
1935                 switch (stat) {
1936                 case 0: /* searching */
1937                 case 1: /* first PLH detected */
1938                 default:
1939                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1940                         lock = 0;
1941                         break;
1942                 case 2: /* DVB-S2 mode */
1943                 case 3: /* DVB-S1/legacy mode */
1944                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1945                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1946                         break;
1947                 }
1948
1949                 if (!lock)
1950                         msleep(10);
1951                 else
1952                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1953
1954                 timer += 10;
1955         }
1956         return lock;
1957 }
1958
1959 static int stv090x_blind_search(struct stv090x_state *state)
1960 {
1961         u32 agc2, reg, srate_coarse;
1962         s32 cpt_fail, agc2_ovflw, i;
1963         u8 k_ref, k_max, k_min;
1964         int coarse_fail, lock;
1965
1966         k_max = 110;
1967         k_min = 10;
1968
1969         agc2 = stv090x_get_agc2_min_level(state);
1970
1971         if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1972                 lock = 0;
1973         } else {
1974
1975                 if (state->internal->dev_ver <= 0x20) {
1976                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1977                                 goto err;
1978                 } else {
1979                         /* > Cut 3 */
1980                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
1981                                 goto err;
1982                 }
1983
1984                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1985                         goto err;
1986
1987                 if (state->internal->dev_ver >= 0x20) {
1988                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1989                                 goto err;
1990                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1991                                 goto err;
1992                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1993                                 goto err;
1994                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
1995                                 goto err;
1996                 }
1997
1998                 k_ref = k_max;
1999                 do {
2000                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2001                                 goto err;
2002                         if (stv090x_srate_srch_coarse(state) != 0) {
2003                                 srate_coarse = stv090x_srate_srch_fine(state);
2004                                 if (srate_coarse != 0) {
2005                                         stv090x_get_lock_tmg(state);
2006                                         lock = stv090x_get_dmdlock(state,
2007                                                         state->DemodTimeout);
2008                                 } else {
2009                                         lock = 0;
2010                                 }
2011                         } else {
2012                                 cpt_fail = 0;
2013                                 agc2_ovflw = 0;
2014                                 for (i = 0; i < 10; i++) {
2015                                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2016                                                 STV090x_READ_DEMOD(state, AGC2I0);
2017                                         if (agc2 >= 0xff00)
2018                                                 agc2_ovflw++;
2019                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
2020                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2021                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2022
2023                                                 cpt_fail++;
2024                                 }
2025                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
2026                                         coarse_fail = 1;
2027
2028                                 lock = 0;
2029                         }
2030                         k_ref -= 20;
2031                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2032         }
2033
2034         return lock;
2035
2036 err:
2037         dprintk(FE_ERROR, 1, "I/O error");
2038         return -1;
2039 }
2040
2041 static int stv090x_chk_tmg(struct stv090x_state *state)
2042 {
2043         u32 reg;
2044         s32 tmg_cpt = 0, i;
2045         u8 freq, tmg_thh, tmg_thl;
2046         int tmg_lock;
2047
2048         freq = STV090x_READ_DEMOD(state, CARFREQ);
2049         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2050         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2051         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2052                 goto err;
2053         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2054                 goto err;
2055
2056         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2057         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2058         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2059                 goto err;
2060         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2061                 goto err;
2062
2063         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2064                 goto err;
2065         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2066                 goto err;
2067
2068         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2069                 goto err;
2070         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2071                 goto err;
2072         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2073                 goto err;
2074
2075         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2076                 goto err;
2077         msleep(10);
2078
2079         for (i = 0; i < 10; i++) {
2080                 reg = STV090x_READ_DEMOD(state, DSTATUS);
2081                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2082                         tmg_cpt++;
2083                 msleep(1);
2084         }
2085         if (tmg_cpt >= 3)
2086                 tmg_lock = 1;
2087
2088         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2089                 goto err;
2090         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2091                 goto err;
2092         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2093                 goto err;
2094
2095         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2096                 goto err;
2097         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2098                 goto err;
2099         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2100                 goto err;
2101
2102         return  tmg_lock;
2103
2104 err:
2105         dprintk(FE_ERROR, 1, "I/O error");
2106         return -1;
2107 }
2108
2109 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2110 {
2111         struct dvb_frontend *fe = &state->frontend;
2112
2113         u32 reg;
2114         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2115         int lock = 0;
2116
2117         if (state->srate >= 10000000)
2118                 timeout_lock = timeout_dmd / 3;
2119         else
2120                 timeout_lock = timeout_dmd / 2;
2121
2122         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2123         if (!lock) {
2124                 if (state->srate >= 10000000) {
2125                         if (stv090x_chk_tmg(state)) {
2126                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2127                                         goto err;
2128                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2129                                         goto err;
2130                                 lock = stv090x_get_dmdlock(state, timeout_dmd);
2131                         } else {
2132                                 lock = 0;
2133                         }
2134                 } else {
2135                         if (state->srate <= 4000000)
2136                                 car_step = 1000;
2137                         else if (state->srate <= 7000000)
2138                                 car_step = 2000;
2139                         else if (state->srate <= 10000000)
2140                                 car_step = 3000;
2141                         else
2142                                 car_step = 5000;
2143
2144                         steps  = (state->search_range / 1000) / car_step;
2145                         steps /= 2;
2146                         steps  = 2 * (steps + 1);
2147                         if (steps < 0)
2148                                 steps = 2;
2149                         else if (steps > 12)
2150                                 steps = 12;
2151
2152                         cur_step = 1;
2153                         dir = 1;
2154
2155                         if (!lock) {
2156                                 freq = state->frequency;
2157                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2158                                 while ((cur_step <= steps) && (!lock)) {
2159                                         if (dir > 0)
2160                                                 freq += cur_step * car_step;
2161                                         else
2162                                                 freq -= cur_step * car_step;
2163
2164                                         /* Setup tuner */
2165                                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2166                                                 goto err;
2167
2168                                         if (state->config->tuner_set_frequency) {
2169                                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
2170                                                         goto err;
2171                                         }
2172
2173                                         if (state->config->tuner_set_bandwidth) {
2174                                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2175                                                         goto err;
2176                                         }
2177
2178                                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2179                                                 goto err;
2180
2181                                         msleep(50);
2182
2183                                         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2184                                                 goto err;
2185
2186                                         if (state->config->tuner_get_status) {
2187                                                 if (state->config->tuner_get_status(fe, &reg) < 0)
2188                                                         goto err;
2189                                         }
2190
2191                                         if (reg)
2192                                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2193                                         else
2194                                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2195
2196                                         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2197                                                 goto err;
2198
2199                                         STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2200                                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2201                                                 goto err;
2202                                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2203                                                 goto err;
2204                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2205                                                 goto err;
2206                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2207                                                 goto err;
2208                                         lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2209
2210                                         dir *= -1;
2211                                         cur_step++;
2212                                 }
2213                         }
2214                 }
2215         }
2216
2217         return lock;
2218
2219 err:
2220         dprintk(FE_ERROR, 1, "I/O error");
2221         return -1;
2222 }
2223
2224 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2225 {
2226         s32 timeout, inc, steps_max, srate, car_max;
2227
2228         srate = state->srate;
2229         car_max = state->search_range / 1000;
2230         car_max += car_max / 10;
2231         car_max  = 65536 * (car_max / 2);
2232         car_max /= (state->internal->mclk / 1000);
2233
2234         if (car_max > 0x4000)
2235                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2236
2237         inc  = srate;
2238         inc /= state->internal->mclk / 1000;
2239         inc *= 256;
2240         inc *= 256;
2241         inc /= 1000;
2242
2243         switch (state->search_mode) {
2244         case STV090x_SEARCH_DVBS1:
2245         case STV090x_SEARCH_DSS:
2246                 inc *= 3; /* freq step = 3% of srate */
2247                 timeout = 20;
2248                 break;
2249
2250         case STV090x_SEARCH_DVBS2:
2251                 inc *= 4;
2252                 timeout = 25;
2253                 break;
2254
2255         case STV090x_SEARCH_AUTO:
2256         default:
2257                 inc *= 3;
2258                 timeout = 25;
2259                 break;
2260         }
2261         inc /= 100;
2262         if ((inc > car_max) || (inc < 0))
2263                 inc = car_max / 2; /* increment <= 1/8 Mclk */
2264
2265         timeout *= 27500; /* 27.5 Msps reference */
2266         if (srate > 0)
2267                 timeout /= (srate / 1000);
2268
2269         if ((timeout > 100) || (timeout < 0))
2270                 timeout = 100;
2271
2272         steps_max = (car_max / inc) + 1; /* min steps = 3 */
2273         if ((steps_max > 100) || (steps_max < 0)) {
2274                 steps_max = 100; /* max steps <= 100 */
2275                 inc = car_max / steps_max;
2276         }
2277         *freq_inc = inc;
2278         *timeout_sw = timeout;
2279         *steps = steps_max;
2280
2281         return 0;
2282 }
2283
2284 static int stv090x_chk_signal(struct stv090x_state *state)
2285 {
2286         s32 offst_car, agc2, car_max;
2287         int no_signal;
2288
2289         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2290         offst_car |= STV090x_READ_DEMOD(state, CFR1);
2291         offst_car = comp2(offst_car, 16);
2292
2293         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2294         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2295         car_max = state->search_range / 1000;
2296
2297         car_max += (car_max / 10); /* 10% margin */
2298         car_max  = (65536 * car_max / 2);
2299         car_max /= state->internal->mclk / 1000;
2300
2301         if (car_max > 0x4000)
2302                 car_max = 0x4000;
2303
2304         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2305                 no_signal = 1;
2306                 dprintk(FE_DEBUG, 1, "No Signal");
2307         } else {
2308                 no_signal = 0;
2309                 dprintk(FE_DEBUG, 1, "Found Signal");
2310         }
2311
2312         return no_signal;
2313 }
2314
2315 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2316 {
2317         int no_signal, lock = 0;
2318         s32 cpt_step = 0, offst_freq, car_max;
2319         u32 reg;
2320
2321         car_max  = state->search_range / 1000;
2322         car_max += (car_max / 10);
2323         car_max  = (65536 * car_max / 2);
2324         car_max /= (state->internal->mclk / 1000);
2325         if (car_max > 0x4000)
2326                 car_max = 0x4000;
2327
2328         if (zigzag)
2329                 offst_freq = 0;
2330         else
2331                 offst_freq = -car_max + inc;
2332
2333         do {
2334                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2335                         goto err;
2336                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2337                         goto err;
2338                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2339                         goto err;
2340                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2341                         goto err;
2342
2343                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2344                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2345                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2346                         goto err;
2347
2348                 if (zigzag) {
2349                         if (offst_freq >= 0)
2350                                 offst_freq = -offst_freq - 2 * inc;
2351                         else
2352                                 offst_freq = -offst_freq;
2353                 } else {
2354                         offst_freq += 2 * inc;
2355                 }
2356
2357                 cpt_step++;
2358
2359                 lock = stv090x_get_dmdlock(state, timeout);
2360                 no_signal = stv090x_chk_signal(state);
2361
2362         } while ((!lock) &&
2363                  (!no_signal) &&
2364                   ((offst_freq - inc) < car_max) &&
2365                   ((offst_freq + inc) > -car_max) &&
2366                   (cpt_step < steps_max));
2367
2368         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2369         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2370         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2371                         goto err;
2372
2373         return lock;
2374 err:
2375         dprintk(FE_ERROR, 1, "I/O error");
2376         return -1;
2377 }
2378
2379 static int stv090x_sw_algo(struct stv090x_state *state)
2380 {
2381         int no_signal, zigzag, lock = 0;
2382         u32 reg;
2383
2384         s32 dvbs2_fly_wheel;
2385         s32 inc, timeout_step, trials, steps_max;
2386
2387         /* get params */
2388         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2389
2390         switch (state->search_mode) {
2391         case STV090x_SEARCH_DVBS1:
2392         case STV090x_SEARCH_DSS:
2393                 /* accelerate the frequency detector */
2394                 if (state->internal->dev_ver >= 0x20) {
2395                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2396                                 goto err;
2397                 }
2398
2399                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2400                         goto err;
2401                 zigzag = 0;
2402                 break;
2403
2404         case STV090x_SEARCH_DVBS2:
2405                 if (state->internal->dev_ver >= 0x20) {
2406                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2407                                 goto err;
2408                 }
2409
2410                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2411                         goto err;
2412                 zigzag = 1;
2413                 break;
2414
2415         case STV090x_SEARCH_AUTO:
2416         default:
2417                 /* accelerate the frequency detector */
2418                 if (state->internal->dev_ver >= 0x20) {
2419                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2420                                 goto err;
2421                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2422                                 goto err;
2423                 }
2424
2425                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2426                         goto err;
2427                 zigzag = 0;
2428                 break;
2429         }
2430
2431         trials = 0;
2432         do {
2433                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2434                 no_signal = stv090x_chk_signal(state);
2435                 trials++;
2436
2437                 /*run the SW search 2 times maximum*/
2438                 if (lock || no_signal || (trials == 2)) {
2439                         /*Check if the demod is not losing lock in DVBS2*/
2440                         if (state->internal->dev_ver >= 0x20) {
2441                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2442                                         goto err;
2443                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2444                                         goto err;
2445                         }
2446
2447                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2448                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2449                                 /*Check if the demod is not losing lock in DVBS2*/
2450                                 msleep(timeout_step);
2451                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2452                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2453                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2454                                         msleep(timeout_step);
2455                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2456                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2457                                 }
2458                                 if (dvbs2_fly_wheel < 0xd) {
2459                                         /*FALSE lock, The demod is loosing lock */
2460                                         lock = 0;
2461                                         if (trials < 2) {
2462                                                 if (state->internal->dev_ver >= 0x20) {
2463                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2464                                                                 goto err;
2465                                                 }
2466
2467                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2468                                                         goto err;
2469                                         }
2470                                 }
2471                         }
2472                 }
2473         } while ((!lock) && (trials < 2) && (!no_signal));
2474
2475         return lock;
2476 err:
2477         dprintk(FE_ERROR, 1, "I/O error");
2478         return -1;
2479 }
2480
2481 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2482 {
2483         u32 reg;
2484         enum stv090x_delsys delsys;
2485
2486         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2487         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2488                 delsys = STV090x_DVBS2;
2489         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2490                 reg = STV090x_READ_DEMOD(state, FECM);
2491                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2492                         delsys = STV090x_DSS;
2493                 else
2494                         delsys = STV090x_DVBS1;
2495         } else {
2496                 delsys = STV090x_ERROR;
2497         }
2498
2499         return delsys;
2500 }
2501
2502 /* in Hz */
2503 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2504 {
2505         s32 derot, int_1, int_2, tmp_1, tmp_2;
2506
2507         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2508         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2509         derot |= STV090x_READ_DEMOD(state, CFR0);
2510
2511         derot = comp2(derot, 24);
2512         int_1 = mclk >> 12;
2513         int_2 = derot >> 12;
2514
2515         /* carrier_frequency = MasterClock * Reg / 2^24 */
2516         tmp_1 = mclk % 0x1000;
2517         tmp_2 = derot % 0x1000;
2518
2519         derot = (int_1 * int_2) +
2520                 ((int_1 * tmp_2) >> 12) +
2521                 ((int_2 * tmp_1) >> 12);
2522
2523         return derot;
2524 }
2525
2526 static int stv090x_get_viterbi(struct stv090x_state *state)
2527 {
2528         u32 reg, rate;
2529
2530         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2531         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2532
2533         switch (rate) {
2534         case 13:
2535                 state->fec = STV090x_PR12;
2536                 break;
2537
2538         case 18:
2539                 state->fec = STV090x_PR23;
2540                 break;
2541
2542         case 21:
2543                 state->fec = STV090x_PR34;
2544                 break;
2545
2546         case 24:
2547                 state->fec = STV090x_PR56;
2548                 break;
2549
2550         case 25:
2551                 state->fec = STV090x_PR67;
2552                 break;
2553
2554         case 26:
2555                 state->fec = STV090x_PR78;
2556                 break;
2557
2558         default:
2559                 state->fec = STV090x_PRERR;
2560                 break;
2561         }
2562
2563         return 0;
2564 }
2565
2566 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2567 {
2568         struct dvb_frontend *fe = &state->frontend;
2569
2570         u8 tmg;
2571         u32 reg;
2572         s32 i = 0, offst_freq;
2573
2574         msleep(5);
2575
2576         if (state->algo == STV090x_BLIND_SEARCH) {
2577                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2578                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2579                 while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2580                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2581                         msleep(5);
2582                         i += 5;
2583                 }
2584         }
2585         state->delsys = stv090x_get_std(state);
2586
2587         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2588                 goto err;
2589
2590         if (state->config->tuner_get_frequency) {
2591                 if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2592                         goto err;
2593         }
2594
2595         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2596                 goto err;
2597
2598         offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2599         state->frequency += offst_freq;
2600
2601         if (stv090x_get_viterbi(state) < 0)
2602                 goto err;
2603
2604         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2605         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2606         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2607         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2608         reg = STV090x_READ_DEMOD(state, TMGOBS);
2609         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2610         reg = STV090x_READ_DEMOD(state, FECM);
2611         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2612
2613         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2614
2615                 if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2616                         goto err;
2617
2618                 if (state->config->tuner_get_frequency) {
2619                         if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2620                                 goto err;
2621                 }
2622
2623                 if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
2624                         goto err;
2625
2626                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2627                         return STV090x_RANGEOK;
2628                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2629                         return STV090x_RANGEOK;
2630                 else
2631                         return STV090x_OUTOFRANGE; /* Out of Range */
2632         } else {
2633                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2634                         return STV090x_RANGEOK;
2635                 else
2636                         return STV090x_OUTOFRANGE;
2637         }
2638
2639         return STV090x_OUTOFRANGE;
2640 err:
2641         dprintk(FE_ERROR, 1, "I/O error");
2642         return -1;
2643 }
2644
2645 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2646 {
2647         s32 offst_tmg;
2648
2649         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2650         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2651         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2652
2653         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2654         if (!offst_tmg)
2655                 offst_tmg = 1;
2656
2657         offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2658         offst_tmg /= 320;
2659
2660         return offst_tmg;
2661 }
2662
2663 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2664 {
2665         u8 aclc = 0x29;
2666         s32 i;
2667         struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2668
2669         if (state->internal->dev_ver == 0x20) {
2670                 car_loop                = stv090x_s2_crl_cut20;
2671                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2672                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2673         } else {
2674                 /* >= Cut 3 */
2675                 car_loop                = stv090x_s2_crl_cut30;
2676                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2677                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2678         }
2679
2680         if (modcod < STV090x_QPSK_12) {
2681                 i = 0;
2682                 while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2683                         i++;
2684
2685                 if (i >= 3)
2686                         i = 2;
2687
2688         } else {
2689                 i = 0;
2690                 while ((i < 14) && (modcod != car_loop[i].modcod))
2691                         i++;
2692
2693                 if (i >= 14) {
2694                         i = 0;
2695                         while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2696                                 i++;
2697
2698                         if (i >= 11)
2699                                 i = 10;
2700                 }
2701         }
2702
2703         if (modcod <= STV090x_QPSK_25) {
2704                 if (pilots) {
2705                         if (state->srate <= 3000000)
2706                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2707                         else if (state->srate <= 7000000)
2708                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2709                         else if (state->srate <= 15000000)
2710                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2711                         else if (state->srate <= 25000000)
2712                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2713                         else
2714                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2715                 } else {
2716                         if (state->srate <= 3000000)
2717                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2718                         else if (state->srate <= 7000000)
2719                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2720                         else if (state->srate <= 15000000)
2721                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2722                         else if (state->srate <= 25000000)
2723                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2724                         else
2725                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2726                 }
2727
2728         } else if (modcod <= STV090x_8PSK_910) {
2729                 if (pilots) {
2730                         if (state->srate <= 3000000)
2731                                 aclc = car_loop[i].crl_pilots_on_2;
2732                         else if (state->srate <= 7000000)
2733                                 aclc = car_loop[i].crl_pilots_on_5;
2734                         else if (state->srate <= 15000000)
2735                                 aclc = car_loop[i].crl_pilots_on_10;
2736                         else if (state->srate <= 25000000)
2737                                 aclc = car_loop[i].crl_pilots_on_20;
2738                         else
2739                                 aclc = car_loop[i].crl_pilots_on_30;
2740                 } else {
2741                         if (state->srate <= 3000000)
2742                                 aclc = car_loop[i].crl_pilots_off_2;
2743                         else if (state->srate <= 7000000)
2744                                 aclc = car_loop[i].crl_pilots_off_5;
2745                         else if (state->srate <= 15000000)
2746                                 aclc = car_loop[i].crl_pilots_off_10;
2747                         else if (state->srate <= 25000000)
2748                                 aclc = car_loop[i].crl_pilots_off_20;
2749                         else
2750                                 aclc = car_loop[i].crl_pilots_off_30;
2751                 }
2752         } else { /* 16APSK and 32APSK */
2753                 if (state->srate <= 3000000)
2754                         aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2755                 else if (state->srate <= 7000000)
2756                         aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2757                 else if (state->srate <= 15000000)
2758                         aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2759                 else if (state->srate <= 25000000)
2760                         aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2761                 else
2762                         aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2763         }
2764
2765         return aclc;
2766 }
2767
2768 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2769 {
2770         struct stv090x_short_frame_crloop *short_crl = NULL;
2771         s32 index = 0;
2772         u8 aclc = 0x0b;
2773
2774         switch (state->modulation) {
2775         case STV090x_QPSK:
2776         default:
2777                 index = 0;
2778                 break;
2779         case STV090x_8PSK:
2780                 index = 1;
2781                 break;
2782         case STV090x_16APSK:
2783                 index = 2;
2784                 break;
2785         case STV090x_32APSK:
2786                 index = 3;
2787                 break;
2788         }
2789
2790         if (state->internal->dev_ver >= 0x30) {
2791                 /* Cut 3.0 and up */
2792                 short_crl = stv090x_s2_short_crl_cut30;
2793         } else {
2794                 /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2795                 short_crl = stv090x_s2_short_crl_cut20;
2796         }
2797
2798         if (state->srate <= 3000000)
2799                 aclc = short_crl[index].crl_2;
2800         else if (state->srate <= 7000000)
2801                 aclc = short_crl[index].crl_5;
2802         else if (state->srate <= 15000000)
2803                 aclc = short_crl[index].crl_10;
2804         else if (state->srate <= 25000000)
2805                 aclc = short_crl[index].crl_20;
2806         else
2807                 aclc = short_crl[index].crl_30;
2808
2809         return aclc;
2810 }
2811
2812 static int stv090x_optimize_track(struct stv090x_state *state)
2813 {
2814         struct dvb_frontend *fe = &state->frontend;
2815
2816         enum stv090x_rolloff rolloff;
2817         enum stv090x_modcod modcod;
2818
2819         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2820         u32 reg;
2821
2822         srate  = stv090x_get_srate(state, state->internal->mclk);
2823         srate += stv090x_get_tmgoffst(state, srate);
2824
2825         switch (state->delsys) {
2826         case STV090x_DVBS1:
2827         case STV090x_DSS:
2828                 if (state->search_mode == STV090x_SEARCH_AUTO) {
2829                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2830                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2831                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2832                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2833                                 goto err;
2834                 }
2835                 reg = STV090x_READ_DEMOD(state, DEMOD);
2836                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2837                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2838                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2839                         goto err;
2840
2841                 if (state->internal->dev_ver >= 0x30) {
2842                         if (stv090x_get_viterbi(state) < 0)
2843                                 goto err;
2844
2845                         if (state->fec == STV090x_PR12) {
2846                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2847                                         goto err;
2848                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2849                                         goto err;
2850                         } else {
2851                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2852                                         goto err;
2853                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2854                                         goto err;
2855                         }
2856                 }
2857
2858                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2859                         goto err;
2860                 break;
2861
2862         case STV090x_DVBS2:
2863                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2864                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2865                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2866                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2867                         goto err;
2868                 if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2869                         goto err;
2870                 if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2871                         goto err;
2872                 if (state->frame_len == STV090x_LONG_FRAME) {
2873                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2874                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2875                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2876                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2877                         if (modcod <= STV090x_QPSK_910) {
2878                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2879                         } else if (modcod <= STV090x_8PSK_910) {
2880                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2881                                         goto err;
2882                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2883                                         goto err;
2884                         }
2885                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2886                                 if (modcod <= STV090x_16APSK_910) {
2887                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2888                                                 goto err;
2889                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2890                                                 goto err;
2891                                 } else {
2892                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2893                                                 goto err;
2894                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2895                                                 goto err;
2896                                 }
2897                         }
2898                 } else {
2899                         /*Carrier loop setting for short frame*/
2900                         aclc = stv090x_optimize_carloop_short(state);
2901                         if (state->modulation == STV090x_QPSK) {
2902                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2903                                         goto err;
2904                         } else if (state->modulation == STV090x_8PSK) {
2905                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2906                                         goto err;
2907                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2908                                         goto err;
2909                         } else if (state->modulation == STV090x_16APSK) {
2910                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2911                                         goto err;
2912                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2913                                         goto err;
2914                         } else if (state->modulation == STV090x_32APSK)  {
2915                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2916                                         goto err;
2917                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2918                                         goto err;
2919                         }
2920                 }
2921
2922                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2923                 break;
2924
2925         case STV090x_UNKNOWN:
2926         default:
2927                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2928                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2929                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2930                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2931                         goto err;
2932                 break;
2933         }
2934
2935         f_1 = STV090x_READ_DEMOD(state, CFR2);
2936         f_0 = STV090x_READ_DEMOD(state, CFR1);
2937         reg = STV090x_READ_DEMOD(state, TMGOBS);
2938         rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2939
2940         if (state->algo == STV090x_BLIND_SEARCH) {
2941                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2942                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2943                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2944                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2945                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2946                         goto err;
2947                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2948                         goto err;
2949
2950                 if (stv090x_set_srate(state, srate) < 0)
2951                         goto err;
2952                 blind_tune = 1;
2953
2954                 if (stv090x_dvbs_track_crl(state) < 0)
2955                         goto err;
2956         }
2957
2958         if (state->internal->dev_ver >= 0x20) {
2959                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2960                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2961                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2962
2963                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2964                                 goto err;
2965                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2966                                 goto err;
2967                 }
2968         }
2969
2970         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2971                 goto err;
2972
2973         /* AUTO tracking MODE */
2974         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
2975                 goto err;
2976         /* AUTO tracking MODE */
2977         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
2978                 goto err;
2979
2980         if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
2981             (state->srate < 10000000)) {
2982                 /* update initial carrier freq with the found freq offset */
2983                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
2984                         goto err;
2985                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
2986                         goto err;
2987                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
2988
2989                 if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
2990
2991                         if (state->algo != STV090x_WARM_SEARCH) {
2992
2993                                 if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
2994                                         goto err;
2995
2996                                 if (state->config->tuner_set_bandwidth) {
2997                                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2998                                                 goto err;
2999                                 }
3000
3001                                 if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3002                                         goto err;
3003
3004                         }
3005                 }
3006                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3007                         msleep(50); /* blind search: wait 50ms for SR stabilization */
3008                 else
3009                         msleep(5);
3010
3011                 stv090x_get_lock_tmg(state);
3012
3013                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3014                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3015                                 goto err;
3016                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3017                                 goto err;
3018                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3019                                 goto err;
3020                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3021                                 goto err;
3022
3023                         i = 0;
3024
3025                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3026
3027                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3028                                         goto err;
3029                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3030                                         goto err;
3031                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3032                                         goto err;
3033                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3034                                         goto err;
3035                                 i++;
3036                         }
3037                 }
3038
3039         }
3040
3041         if (state->internal->dev_ver >= 0x20) {
3042                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3043                         goto err;
3044         }
3045
3046         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3047                 stv090x_set_vit_thtracq(state);
3048
3049         return 0;
3050 err:
3051         dprintk(FE_ERROR, 1, "I/O error");
3052         return -1;
3053 }
3054
3055 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3056 {
3057         s32 timer = 0, lock = 0, stat;
3058         u32 reg;
3059
3060         while ((timer < timeout) && (!lock)) {
3061                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
3062                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3063
3064                 switch (stat) {
3065                 case 0: /* searching */
3066                 case 1: /* first PLH detected */
3067                 default:
3068                         lock = 0;
3069                         break;
3070
3071                 case 2: /* DVB-S2 mode */
3072                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3073                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3074                         break;
3075
3076                 case 3: /* DVB-S1/legacy mode */
3077                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3078                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3079                         break;
3080                 }
3081                 if (!lock) {
3082                         msleep(10);
3083                         timer += 10;
3084                 }
3085         }
3086         return lock;
3087 }
3088
3089 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3090 {
3091         u32 reg;
3092         s32 timer = 0;
3093         int lock;
3094
3095         lock = stv090x_get_dmdlock(state, timeout_dmd);
3096         if (lock)
3097                 lock = stv090x_get_feclock(state, timeout_fec);
3098
3099         if (lock) {
3100                 lock = 0;
3101
3102                 while ((timer < timeout_fec) && (!lock)) {
3103                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3104                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3105                         msleep(1);
3106                         timer++;
3107                 }
3108         }
3109
3110         return lock;
3111 }
3112
3113 static int stv090x_set_s2rolloff(struct stv090x_state *state)
3114 {
3115         u32 reg;
3116
3117         if (state->internal->dev_ver <= 0x20) {
3118                 /* rolloff to auto mode if DVBS2 */
3119                 reg = STV090x_READ_DEMOD(state, DEMOD);
3120                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3121                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3122                         goto err;
3123         } else {
3124                 /* DVB-S2 rolloff to auto mode if DVBS2 */
3125                 reg = STV090x_READ_DEMOD(state, DEMOD);
3126                 STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3127                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3128                         goto err;
3129         }
3130         return 0;
3131 err:
3132         dprintk(FE_ERROR, 1, "I/O error");
3133         return -1;
3134 }
3135
3136
3137 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3138 {
3139         struct dvb_frontend *fe = &state->frontend;
3140         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3141         u32 reg;
3142         s32 agc1_power, power_iq = 0, i;
3143         int lock = 0, low_sr = 0, no_signal = 0;
3144
3145         reg = STV090x_READ_DEMOD(state, TSCFGH);
3146         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3147         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3148                 goto err;
3149
3150         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3151                 goto err;
3152
3153         if (state->internal->dev_ver >= 0x20) {
3154                 if (state->srate > 5000000) {
3155                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3156                                 goto err;
3157                 } else {
3158                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3159                                 goto err;
3160                 }
3161         }
3162
3163         stv090x_get_lock_tmg(state);
3164
3165         if (state->algo == STV090x_BLIND_SEARCH) {
3166                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3167                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3168                         goto err;
3169                 if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3170                         goto err;
3171                 if (stv090x_set_srate(state, 1000000) < 0) /* inital srate = 1Msps */
3172                         goto err;
3173         } else {
3174                 /* known srate */
3175                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3176                         goto err;
3177                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3178                         goto err;
3179
3180                 if (state->srate < 2000000) {
3181                         /* SR < 2MSPS */
3182                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3183                                 goto err;
3184                 } else {
3185                         /* SR >= 2Msps */
3186                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3187                                 goto err;
3188                 }
3189
3190                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3191                         goto err;
3192
3193                 if (state->internal->dev_ver >= 0x20) {
3194                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3195                                 goto err;
3196                         if (state->algo == STV090x_COLD_SEARCH)
3197                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3198                         else if (state->algo == STV090x_WARM_SEARCH)
3199                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3200                 }
3201
3202                 /* if cold start or warm  (Symbolrate is known)
3203                  * use a Narrow symbol rate scan range
3204                  */
3205                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3206                         goto err;
3207
3208                 if (stv090x_set_srate(state, state->srate) < 0)
3209                         goto err;
3210
3211                 if (stv090x_set_max_srate(state, state->internal->mclk,
3212                                           state->srate) < 0)
3213                         goto err;
3214                 if (stv090x_set_min_srate(state, state->internal->mclk,
3215                                           state->srate) < 0)
3216                         goto err;
3217
3218                 if (state->srate >= 10000000)
3219                         low_sr = 0;
3220                 else
3221                         low_sr = 1;
3222         }
3223
3224         /* Setup tuner */
3225         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
3226                 goto err;
3227
3228         if (state->config->tuner_set_bbgain) {
3229                 if (state->config->tuner_set_bbgain(fe, 10) < 0) /* 10dB */
3230                         goto err;
3231         }
3232
3233         if (state->config->tuner_set_frequency) {
3234                 if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3235                         goto err;
3236         }
3237
3238         if (state->config->tuner_set_bandwidth) {
3239                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3240                         goto err;
3241         }
3242
3243         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3244                 goto err;
3245
3246         msleep(50);
3247
3248         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
3249                 goto err;
3250
3251         if (state->config->tuner_get_status) {
3252                 if (state->config->tuner_get_status(fe, &reg) < 0)
3253                         goto err;
3254         }
3255
3256         if (reg)
3257                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
3258         else
3259                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
3260
3261         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
3262                 goto err;
3263
3264         msleep(10);
3265         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3266                                 STV090x_READ_DEMOD(state, AGCIQIN0));
3267
3268         if (agc1_power == 0) {
3269                 /* If AGC1 integrator value is 0
3270                  * then read POWERI, POWERQ
3271                  */
3272                 for (i = 0; i < 5; i++) {
3273                         power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3274                                      STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3275                 }
3276                 power_iq /= 5;
3277         }
3278
3279         if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3280                 dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3281                 lock = 0;
3282                 signal_state = STV090x_NOAGC1;
3283         } else {
3284                 reg = STV090x_READ_DEMOD(state, DEMOD);
3285                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3286
3287                 if (state->internal->dev_ver <= 0x20) {
3288                         /* rolloff to auto mode if DVBS2 */
3289                         STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3290                 } else {
3291                         /* DVB-S2 rolloff to auto mode if DVBS2 */
3292                         STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3293                 }
3294                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3295                         goto err;
3296
3297                 if (stv090x_delivery_search(state) < 0)
3298                         goto err;
3299
3300                 if (state->algo != STV090x_BLIND_SEARCH) {
3301                         if (stv090x_start_search(state) < 0)
3302                                 goto err;
3303                 }
3304         }
3305
3306         if (signal_state == STV090x_NOAGC1)
3307                 return signal_state;
3308
3309         if (state->algo == STV090x_BLIND_SEARCH)
3310                 lock = stv090x_blind_search(state);
3311
3312         else if (state->algo == STV090x_COLD_SEARCH)
3313                 lock = stv090x_get_coldlock(state, state->DemodTimeout);
3314
3315         else if (state->algo == STV090x_WARM_SEARCH)
3316                 lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3317
3318         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3319                 if (!low_sr) {
3320                         if (stv090x_chk_tmg(state))
3321                                 lock = stv090x_sw_algo(state);
3322                 }
3323         }
3324
3325         if (lock)
3326                 signal_state = stv090x_get_sig_params(state);
3327
3328         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3329                 stv090x_optimize_track(state);
3330
3331                 if (state->internal->dev_ver >= 0x20) {
3332                         /* >= Cut 2.0 :release TS reset after
3333                          * demod lock and optimized Tracking
3334                          */
3335                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3336                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3337                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3338                                 goto err;
3339
3340                         msleep(3);
3341
3342                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3343                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3344                                 goto err;
3345
3346                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3347                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3348                                 goto err;
3349                 }
3350
3351                 lock = stv090x_get_lock(state, state->FecTimeout,
3352                                 state->FecTimeout);
3353                 if (lock) {
3354                         if (state->delsys == STV090x_DVBS2) {
3355                                 stv090x_set_s2rolloff(state);
3356
3357                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3358                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3359                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3360                                         goto err;
3361                                 /* Reset DVBS2 packet delinator error counter */
3362                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3363                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3364                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3365                                         goto err;
3366
3367                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3368                                         goto err;
3369                         } else {
3370                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3371                                         goto err;
3372                         }
3373                         /* Reset the Total packet counter */
3374                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3375                                 goto err;
3376                         /* Reset the packet Error counter2 */
3377                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3378                                 goto err;
3379                 } else {
3380                         signal_state = STV090x_NODATA;
3381                         no_signal = stv090x_chk_signal(state);
3382                 }
3383         }
3384         return signal_state;
3385
3386 err:
3387         dprintk(FE_ERROR, 1, "I/O error");
3388         return -1;
3389 }
3390
3391 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
3392 {
3393         struct stv090x_state *state = fe->demodulator_priv;
3394         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3395
3396         if (p->frequency == 0)
3397                 return DVBFE_ALGO_SEARCH_INVALID;
3398
3399         state->delsys = props->delivery_system;
3400         state->frequency = p->frequency;
3401         state->srate = p->u.qpsk.symbol_rate;
3402         state->search_mode = STV090x_SEARCH_AUTO;
3403         state->algo = STV090x_COLD_SEARCH;
3404         state->fec = STV090x_PRERR;
3405         if (state->srate > 10000000) {
3406                 dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3407                 state->search_range = 10000000;
3408         } else {
3409                 dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3410                 state->search_range = 5000000;
3411         }
3412
3413         if (stv090x_algo(state) == STV090x_RANGEOK) {
3414                 dprintk(FE_DEBUG, 1, "Search success!");
3415                 return DVBFE_ALGO_SEARCH_SUCCESS;
3416         } else {
3417                 dprintk(FE_DEBUG, 1, "Search failed!");
3418                 return DVBFE_ALGO_SEARCH_FAILED;
3419         }
3420
3421         return DVBFE_ALGO_SEARCH_ERROR;
3422 }
3423
3424 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3425 {
3426         struct stv090x_state *state = fe->demodulator_priv;
3427         u32 reg;
3428         u8 search_state;
3429
3430         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3431         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3432
3433         switch (search_state) {
3434         case 0: /* searching */
3435         case 1: /* first PLH detected */
3436         default:
3437                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3438                 *status = 0;
3439                 break;
3440
3441         case 2: /* DVB-S2 mode */
3442                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3443                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3444                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3445                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3446                         if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3447                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3448                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3449                                         *status = FE_HAS_SIGNAL |
3450                                                   FE_HAS_CARRIER |
3451                                                   FE_HAS_VITERBI |
3452                                                   FE_HAS_SYNC |
3453                                                   FE_HAS_LOCK;
3454                                 }
3455                         }
3456                 }
3457                 break;
3458
3459         case 3: /* DVB-S1/legacy mode */
3460                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3461                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3462                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3463                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3464                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3465                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3466                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3467                                         *status = FE_HAS_SIGNAL |
3468                                                   FE_HAS_CARRIER |
3469                                                   FE_HAS_VITERBI |
3470                                                   FE_HAS_SYNC |
3471                                                   FE_HAS_LOCK;
3472                                 }
3473                         }
3474                 }
3475                 break;
3476         }
3477
3478         return 0;
3479 }
3480
3481 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3482 {
3483         struct stv090x_state *state = fe->demodulator_priv;
3484
3485         s32 count_4, count_3, count_2, count_1, count_0, count;
3486         u32 reg, h, m, l;
3487         enum fe_status status;
3488
3489         stv090x_read_status(fe, &status);
3490         if (!(status & FE_HAS_LOCK)) {
3491                 *per = 1 << 23; /* Max PER */
3492         } else {
3493                 /* Counter 2 */
3494                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3495                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3496
3497                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3498                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3499
3500                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3501                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3502
3503                 *per = ((h << 16) | (m << 8) | l);
3504
3505                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3506                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3507                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3508                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3509                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3510
3511                 if ((!count_4) && (!count_3)) {
3512                         count  = (count_2 & 0xff) << 16;
3513                         count |= (count_1 & 0xff) <<  8;
3514                         count |=  count_0 & 0xff;
3515                 } else {
3516                         count = 1 << 24;
3517                 }
3518                 if (count == 0)
3519                         *per = 1;
3520         }
3521         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3522                 goto err;
3523         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3524                 goto err;
3525
3526         return 0;
3527 err:
3528         dprintk(FE_ERROR, 1, "I/O error");
3529         return -1;
3530 }
3531
3532 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3533 {
3534         int res = 0;
3535         int min = 0, med;
3536
3537         if ((val >= tab[min].read && val < tab[max].read) ||
3538             (val >= tab[max].read && val < tab[min].read)) {
3539                 while ((max - min) > 1) {
3540                         med = (max + min) / 2;
3541                         if ((val >= tab[min].read && val < tab[med].read) ||
3542                             (val >= tab[med].read && val < tab[min].read))
3543                                 max = med;
3544                         else
3545                                 min = med;
3546                 }
3547                 res = ((val - tab[min].read) *
3548                        (tab[max].real - tab[min].real) /
3549                        (tab[max].read - tab[min].read)) +
3550                         tab[min].real;
3551         } else {
3552                 if (tab[min].read < tab[max].read) {
3553                         if (val < tab[min].read)
3554                                 res = tab[min].real;
3555                         else if (val >= tab[max].read)
3556                                 res = tab[max].real;
3557                 } else {
3558                         if (val >= tab[min].read)
3559                                 res = tab[min].real;
3560                         else if (val < tab[max].read)
3561                                 res = tab[max].real;
3562                 }
3563         }
3564
3565         return res;
3566 }
3567
3568 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3569 {
3570         struct stv090x_state *state = fe->demodulator_priv;
3571         u32 reg;
3572         s32 agc_0, agc_1, agc;
3573         s32 str;
3574
3575         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3576         agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3577         reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3578         agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3579         agc = MAKEWORD16(agc_1, agc_0);
3580
3581         str = stv090x_table_lookup(stv090x_rf_tab,
3582                 ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3583         if (agc > stv090x_rf_tab[0].read)
3584                 str = 0;
3585         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3586                 str = -100;
3587         *strength = (str + 100) * 0xFFFF / 100;
3588
3589         return 0;
3590 }
3591
3592 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3593 {
3594         struct stv090x_state *state = fe->demodulator_priv;
3595         u32 reg_0, reg_1, reg, i;
3596         s32 val_0, val_1, val = 0;
3597         u8 lock_f;
3598         s32 div;
3599         u32 last;
3600
3601         switch (state->delsys) {
3602         case STV090x_DVBS2:
3603                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3604                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3605                 if (lock_f) {
3606                         msleep(5);
3607                         for (i = 0; i < 16; i++) {
3608                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3609                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3610                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3611                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3612                                 val  += MAKEWORD16(val_1, val_0);
3613                                 msleep(1);
3614                         }
3615                         val /= 16;
3616                         last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3617                         div = stv090x_s2cn_tab[0].read -
3618                               stv090x_s2cn_tab[last].read;
3619                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3620                 }
3621                 break;
3622
3623         case STV090x_DVBS1:
3624         case STV090x_DSS:
3625                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3626                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3627                 if (lock_f) {
3628                         msleep(5);
3629                         for (i = 0; i < 16; i++) {
3630                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3631                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3632                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3633                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3634                                 val  += MAKEWORD16(val_1, val_0);
3635                                 msleep(1);
3636                         }
3637                         val /= 16;
3638                         last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3639                         div = stv090x_s1cn_tab[0].read -
3640                               stv090x_s1cn_tab[last].read;
3641                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3642                 }
3643                 break;
3644         default:
3645                 break;
3646         }
3647
3648         return 0;
3649 }
3650
3651 static int stv090x_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
3652 {
3653         struct stv090x_state *state = fe->demodulator_priv;
3654         u32 reg;
3655
3656         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3657         switch (tone) {
3658         case SEC_TONE_ON:
3659                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3660                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3661                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3662                         goto err;
3663                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3664                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3665                         goto err;
3666                 break;
3667
3668         case SEC_TONE_OFF:
3669                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3670                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3671                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3672                         goto err;
3673                 break;
3674         default:
3675                 return -EINVAL;
3676         }
3677
3678         return 0;
3679 err:
3680         dprintk(FE_ERROR, 1, "I/O error");
3681         return -1;
3682 }
3683
3684
3685 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3686 {
3687         return DVBFE_ALGO_CUSTOM;
3688 }
3689
3690 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3691 {
3692         struct stv090x_state *state = fe->demodulator_priv;
3693         u32 reg, idle = 0, fifo_full = 1;
3694         int i;
3695
3696         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3697
3698         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3699                 (state->config->diseqc_envelope_mode) ? 4 : 2);
3700         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3701         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3702                 goto err;
3703         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3704         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3705                 goto err;
3706
3707         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3708         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3709                 goto err;
3710
3711         for (i = 0; i < cmd->msg_len; i++) {
3712
3713                 while (fifo_full) {
3714                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3715                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3716                 }
3717
3718                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3719                         goto err;
3720         }
3721         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3722         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3723         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3724                 goto err;
3725
3726         i = 0;
3727
3728         while ((!idle) && (i < 10)) {
3729                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3730                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3731                 msleep(10);
3732                 i++;
3733         }
3734
3735         return 0;
3736 err:
3737         dprintk(FE_ERROR, 1, "I/O error");
3738         return -1;
3739 }
3740
3741 static int stv090x_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
3742 {
3743         struct stv090x_state *state = fe->demodulator_priv;
3744         u32 reg, idle = 0, fifo_full = 1;
3745         u8 mode, value;
3746         int i;
3747
3748         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3749
3750         if (burst == SEC_MINI_A) {
3751                 mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3752                 value = 0x00;
3753         } else {
3754                 mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3755                 value = 0xFF;
3756         }
3757
3758         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3759         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3760         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3761                 goto err;
3762         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3763         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3764                 goto err;
3765
3766         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3767         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3768                 goto err;
3769
3770         while (fifo_full) {
3771                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3772                 fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3773         }
3774
3775         if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3776                 goto err;
3777
3778         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3779         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3780         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3781                 goto err;
3782
3783         i = 0;
3784
3785         while ((!idle) && (i < 10)) {
3786                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3787                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3788                 msleep(10);
3789                 i++;
3790         }
3791
3792         return 0;
3793 err:
3794         dprintk(FE_ERROR, 1, "I/O error");
3795         return -1;
3796 }
3797
3798 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3799 {
3800         struct stv090x_state *state = fe->demodulator_priv;
3801         u32 reg = 0, i = 0, rx_end = 0;
3802
3803         while ((rx_end != 1) && (i < 10)) {
3804                 msleep(10);
3805                 i++;
3806                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3807                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3808         }
3809
3810         if (rx_end) {
3811                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3812                 for (i = 0; i < reply->msg_len; i++)
3813                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3814         }
3815
3816         return 0;
3817 }
3818
3819 static int stv090x_sleep(struct dvb_frontend *fe)
3820 {
3821         struct stv090x_state *state = fe->demodulator_priv;
3822         u32 reg;
3823
3824         dprintk(FE_DEBUG, 1, "Set %s to sleep",
3825                 state->device == STV0900 ? "STV0900" : "STV0903");
3826
3827         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3828         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
3829         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3830                 goto err;
3831
3832         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3833         STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3834         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3835                 goto err;
3836
3837         return 0;
3838 err:
3839         dprintk(FE_ERROR, 1, "I/O error");
3840         return -1;
3841 }
3842
3843 static int stv090x_wakeup(struct dvb_frontend *fe)
3844 {
3845         struct stv090x_state *state = fe->demodulator_priv;
3846         u32 reg;
3847
3848         dprintk(FE_DEBUG, 1, "Wake %s from standby",
3849                 state->device == STV0900 ? "STV0900" : "STV0903");
3850
3851         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3852         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
3853         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3854                 goto err;
3855
3856         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3857         STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
3858         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3859                 goto err;
3860
3861         return 0;
3862 err:
3863         dprintk(FE_ERROR, 1, "I/O error");
3864         return -1;
3865 }
3866
3867 static void stv090x_release(struct dvb_frontend *fe)
3868 {
3869         struct stv090x_state *state = fe->demodulator_priv;
3870
3871         state->internal->num_used--;
3872         if (state->internal->num_used <= 0) {
3873
3874                 dprintk(FE_ERROR, 1, "Actually removing");
3875
3876                 remove_dev(state->internal);
3877                 kfree(state->internal);
3878         }
3879
3880         kfree(state);
3881 }
3882
3883 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
3884 {
3885         u32 reg = 0;
3886
3887         reg = stv090x_read_reg(state, STV090x_GENCFG);
3888
3889         switch (ldpc_mode) {
3890         case STV090x_DUAL:
3891         default:
3892                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
3893                         /* set LDPC to dual mode */
3894                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
3895                                 goto err;
3896
3897                         state->demod_mode = STV090x_DUAL;
3898
3899                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
3900                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3901                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3902                                 goto err;
3903                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3904                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3905                                 goto err;
3906
3907                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
3908                                 goto err;
3909                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
3910                                 goto err;
3911                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
3912                                 goto err;
3913                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
3914                                 goto err;
3915                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
3916                                 goto err;
3917                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
3918                                 goto err;
3919                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
3920                                 goto err;
3921
3922                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
3923                                 goto err;
3924                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
3925                                 goto err;
3926                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
3927                                 goto err;
3928                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
3929                                 goto err;
3930                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
3931                                 goto err;
3932                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
3933                                 goto err;
3934                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
3935                                 goto err;
3936
3937                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
3938                                 goto err;
3939                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
3940                                 goto err;
3941                 }
3942                 break;
3943
3944         case STV090x_SINGLE:
3945                 if (stv090x_stop_modcod(state) < 0)
3946                         goto err;
3947                 if (stv090x_activate_modcod_single(state) < 0)
3948                         goto err;
3949
3950                 if (state->demod == STV090x_DEMODULATOR_1) {
3951                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
3952                                 goto err;
3953                 } else {
3954                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
3955                                 goto err;
3956                 }
3957
3958                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
3959                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
3960                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3961                         goto err;
3962                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
3963                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
3964                         goto err;
3965
3966                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3967                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
3968                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3969                         goto err;
3970                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
3971                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3972                         goto err;
3973                 break;
3974         }
3975
3976         return 0;
3977 err:
3978         dprintk(FE_ERROR, 1, "I/O error");
3979         return -1;
3980 }
3981
3982 /* return (Hz), clk in Hz*/
3983 static u32 stv090x_get_mclk(struct stv090x_state *state)
3984 {
3985         const struct stv090x_config *config = state->config;
3986         u32 div, reg;
3987         u8 ratio;
3988
3989         div = stv090x_read_reg(state, STV090x_NCOARSE);
3990         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3991         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
3992
3993         return (div + 1) * config->xtal / ratio; /* kHz */
3994 }
3995
3996 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
3997 {
3998         const struct stv090x_config *config = state->config;
3999         u32 reg, div, clk_sel;
4000
4001         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4002         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4003
4004         div = ((clk_sel * mclk) / config->xtal) - 1;
4005
4006         reg = stv090x_read_reg(state, STV090x_NCOARSE);
4007         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4008         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4009                 goto err;
4010
4011         state->internal->mclk = stv090x_get_mclk(state);
4012
4013         /*Set the DiseqC frequency to 22KHz */
4014         div = state->internal->mclk / 704000;
4015         if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4016                 goto err;
4017         if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4018                 goto err;
4019
4020         return 0;
4021 err:
4022         dprintk(FE_ERROR, 1, "I/O error");
4023         return -1;
4024 }
4025
4026 static int stv090x_set_tspath(struct stv090x_state *state)
4027 {
4028         u32 reg;
4029
4030         if (state->internal->dev_ver >= 0x20) {
4031                 switch (state->config->ts1_mode) {
4032                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4033                 case STV090x_TSMODE_DVBCI:
4034                         switch (state->config->ts2_mode) {
4035                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4036                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4037                         default:
4038                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4039                                 break;
4040
4041                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4042                         case STV090x_TSMODE_DVBCI:
4043                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4044                                         goto err;
4045                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4046                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4047                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4048                                         goto err;
4049                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4050                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4051                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4052                                         goto err;
4053                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4054                                         goto err;
4055                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4056                                         goto err;
4057                                 break;
4058                         }
4059                         break;
4060
4061                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4062                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4063                 default:
4064                         switch (state->config->ts2_mode) {
4065                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4066                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4067                         default:
4068                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4069                                         goto err;
4070                                 break;
4071
4072                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4073                         case STV090x_TSMODE_DVBCI:
4074                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4075                                         goto err;
4076                                 break;
4077                         }
4078                         break;
4079                 }
4080         } else {
4081                 switch (state->config->ts1_mode) {
4082                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4083                 case STV090x_TSMODE_DVBCI:
4084                         switch (state->config->ts2_mode) {
4085                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4086                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4087                         default:
4088                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4089                                 break;
4090
4091                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4092                         case STV090x_TSMODE_DVBCI:
4093                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4094                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4095                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4096                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4097                                         goto err;
4098                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4099                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4100                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4101                                         goto err;
4102                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4103                                         goto err;
4104                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4105                                         goto err;
4106                                 break;
4107                         }
4108                         break;
4109
4110                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4111                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4112                 default:
4113                         switch (state->config->ts2_mode) {
4114                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4115                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4116                         default:
4117                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4118                                 break;
4119
4120                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4121                         case STV090x_TSMODE_DVBCI:
4122                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4123                                 break;
4124                         }
4125                         break;
4126                 }
4127         }
4128
4129         switch (state->config->ts1_mode) {
4130         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4131                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4132                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4133                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4134                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4135                         goto err;
4136                 break;
4137
4138         case STV090x_TSMODE_DVBCI:
4139                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4140                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4141                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4142                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4143                         goto err;
4144                 break;
4145
4146         case STV090x_TSMODE_SERIAL_PUNCTURED:
4147                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4148                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4149                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4150                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4151                         goto err;
4152                 break;
4153
4154         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4155                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4156                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4157                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4158                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4159                         goto err;
4160                 break;
4161
4162         default:
4163                 break;
4164         }
4165
4166         switch (state->config->ts2_mode) {
4167         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4168                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4169                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4170                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4171                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4172                         goto err;
4173                 break;
4174
4175         case STV090x_TSMODE_DVBCI:
4176                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4177                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4178                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4179                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4180                         goto err;
4181                 break;
4182
4183         case STV090x_TSMODE_SERIAL_PUNCTURED:
4184                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4185                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4186                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4187                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4188                         goto err;
4189                 break;
4190
4191         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4192                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4193                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4194                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4195                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4196                         goto err;
4197                 break;
4198
4199         default:
4200                 break;
4201         }
4202
4203         if (state->config->ts1_clk > 0) {
4204                 u32 speed;
4205
4206                 switch (state->config->ts1_mode) {
4207                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4208                 case STV090x_TSMODE_DVBCI:
4209                 default:
4210                         speed = state->internal->mclk /
4211                                 (state->config->ts1_clk / 4);
4212                         if (speed < 0x08)
4213                                 speed = 0x08;
4214                         if (speed > 0xFF)
4215                                 speed = 0xFF;
4216                         break;
4217                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4218                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4219                         speed = state->internal->mclk /
4220                                 (state->config->ts1_clk / 32);
4221                         if (speed < 0x20)
4222                                 speed = 0x20;
4223                         if (speed > 0xFF)
4224                                 speed = 0xFF;
4225                         break;
4226                 }
4227                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4228                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4229                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4230                         goto err;
4231                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4232                         goto err;
4233         }
4234
4235         if (state->config->ts2_clk > 0) {
4236                 u32 speed;
4237
4238                 switch (state->config->ts2_mode) {
4239                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4240                 case STV090x_TSMODE_DVBCI:
4241                 default:
4242                         speed = state->internal->mclk /
4243                                 (state->config->ts2_clk / 4);
4244                         if (speed < 0x08)
4245                                 speed = 0x08;
4246                         if (speed > 0xFF)
4247                                 speed = 0xFF;
4248                         break;
4249                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4250                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4251                         speed = state->internal->mclk /
4252                                 (state->config->ts2_clk / 32);
4253                         if (speed < 0x20)
4254                                 speed = 0x20;
4255                         if (speed > 0xFF)
4256                                 speed = 0xFF;
4257                         break;
4258                 }
4259                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4260                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4261                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4262                         goto err;
4263                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4264                         goto err;
4265         }
4266
4267         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4268         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4269         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4270                 goto err;
4271         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4272         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4273                 goto err;
4274
4275         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4276         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4277         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4278                 goto err;
4279         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4280         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4281                 goto err;
4282
4283         return 0;
4284 err:
4285         dprintk(FE_ERROR, 1, "I/O error");
4286         return -1;
4287 }
4288
4289 static int stv090x_init(struct dvb_frontend *fe)
4290 {
4291         struct stv090x_state *state = fe->demodulator_priv;
4292         const struct stv090x_config *config = state->config;
4293         u32 reg;
4294
4295         if (state->internal->mclk == 0) {
4296                 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4297                 msleep(5);
4298                 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4299                                       0x20 | config->clk_mode) < 0)
4300                         goto err;
4301                 stv090x_get_mclk(state);
4302         }
4303
4304         if (stv090x_wakeup(fe) < 0) {
4305                 dprintk(FE_ERROR, 1, "Error waking device");
4306                 goto err;
4307         }
4308
4309         if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4310                 goto err;
4311
4312         reg = STV090x_READ_DEMOD(state, TNRCFG2);
4313         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4314         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4315                 goto err;
4316         reg = STV090x_READ_DEMOD(state, DEMOD);
4317         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4318         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4319                 goto err;
4320
4321         if (stv090x_i2c_gate_ctrl(fe, 1) < 0)
4322                 goto err;
4323
4324         if (config->tuner_set_mode) {
4325                 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4326                         goto err;
4327         }
4328
4329         if (config->tuner_init) {
4330                 if (config->tuner_init(fe) < 0)
4331                         goto err;
4332         }
4333
4334         if (stv090x_i2c_gate_ctrl(fe, 0) < 0)
4335                 goto err;
4336
4337         if (stv090x_set_tspath(state) < 0)
4338                 goto err;
4339
4340         return 0;
4341 err:
4342         dprintk(FE_ERROR, 1, "I/O error");
4343         return -1;
4344 }
4345
4346 static int stv090x_setup(struct dvb_frontend *fe)
4347 {
4348         struct stv090x_state *state = fe->demodulator_priv;
4349         const struct stv090x_config *config = state->config;
4350         const struct stv090x_reg *stv090x_initval = NULL;
4351         const struct stv090x_reg *stv090x_cut20_val = NULL;
4352         unsigned long t1_size = 0, t2_size = 0;
4353         u32 reg = 0;
4354
4355         int i;
4356
4357         if (state->device == STV0900) {
4358                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
4359                 stv090x_initval = stv0900_initval;
4360                 t1_size = ARRAY_SIZE(stv0900_initval);
4361                 stv090x_cut20_val = stv0900_cut20_val;
4362                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
4363         } else if (state->device == STV0903) {
4364                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
4365                 stv090x_initval = stv0903_initval;
4366                 t1_size = ARRAY_SIZE(stv0903_initval);
4367                 stv090x_cut20_val = stv0903_cut20_val;
4368                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
4369         }
4370
4371         /* STV090x init */
4372
4373         /* Stop Demod */
4374         if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4375                 goto err;
4376         if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4377                 goto err;
4378
4379         msleep(5);
4380
4381         /* Set No Tuner Mode */
4382         if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4383                 goto err;
4384         if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4385                 goto err;
4386
4387         /* I2C repeater OFF */
4388         STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4389         if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4390                 goto err;
4391         if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4392                 goto err;
4393
4394         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4395                 goto err;
4396         msleep(5);
4397         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4398                 goto err;
4399         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4400                 goto err;
4401         msleep(5);
4402
4403         /* write initval */
4404         dprintk(FE_DEBUG, 1, "Setting up initial values");
4405         for (i = 0; i < t1_size; i++) {
4406                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4407                         goto err;
4408         }
4409
4410         state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4411         if (state->internal->dev_ver >= 0x20) {
4412                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4413                         goto err;
4414
4415                 /* write cut20_val*/
4416                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4417                 for (i = 0; i < t2_size; i++) {
4418                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4419                                 goto err;
4420                 }
4421
4422         } else if (state->internal->dev_ver < 0x20) {
4423                 dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4424                         state->internal->dev_ver);
4425
4426                 goto err;
4427         } else if (state->internal->dev_ver > 0x30) {
4428                 /* we shouldn't bail out from here */
4429                 dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4430                         state->internal->dev_ver);
4431         }
4432
4433         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4434                 goto err;
4435         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4436                 goto err;
4437
4438         return 0;
4439 err:
4440         dprintk(FE_ERROR, 1, "I/O error");
4441         return -1;
4442 }
4443
4444 static struct dvb_frontend_ops stv090x_ops = {
4445
4446         .info = {
4447                 .name                   = "STV090x Multistandard",
4448                 .type                   = FE_QPSK,
4449                 .frequency_min          = 950000,
4450                 .frequency_max          = 2150000,
4451                 .frequency_stepsize     = 0,
4452                 .frequency_tolerance    = 0,
4453                 .symbol_rate_min        = 1000000,
4454                 .symbol_rate_max        = 45000000,
4455                 .caps                   = FE_CAN_INVERSION_AUTO |
4456                                           FE_CAN_FEC_AUTO       |
4457                                           FE_CAN_QPSK           |
4458                                           FE_CAN_2G_MODULATION
4459         },
4460
4461         .release                        = stv090x_release,
4462         .init                           = stv090x_init,
4463
4464         .sleep                          = stv090x_sleep,
4465         .get_frontend_algo              = stv090x_frontend_algo,
4466
4467         .i2c_gate_ctrl                  = stv090x_i2c_gate_ctrl,
4468
4469         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4470         .diseqc_send_burst              = stv090x_send_diseqc_burst,
4471         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4472         .set_tone                       = stv090x_set_tone,
4473
4474         .search                         = stv090x_search,
4475         .read_status                    = stv090x_read_status,
4476         .read_ber                       = stv090x_read_per,
4477         .read_signal_strength           = stv090x_read_signal_strength,
4478         .read_snr                       = stv090x_read_cnr
4479 };
4480
4481
4482 struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
4483                                     struct i2c_adapter *i2c,
4484                                     enum stv090x_demodulator demod)
4485 {
4486         struct stv090x_state *state = NULL;
4487         struct stv090x_dev *temp_int;
4488
4489         state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
4490         if (state == NULL)
4491                 goto error;
4492
4493         state->verbose                          = &verbose;
4494         state->config                           = config;
4495         state->i2c                              = i2c;
4496         state->frontend.ops                     = stv090x_ops;
4497         state->frontend.demodulator_priv        = state;
4498         state->demod                            = demod;
4499         state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
4500         state->device                           = config->device;
4501         state->rolloff                          = STV090x_RO_35; /* default */
4502
4503         temp_int = find_dev(state->i2c,
4504                                 state->config->address);
4505
4506         if ((temp_int != NULL) && (state->demod_mode == STV090x_DUAL)) {
4507                 state->internal = temp_int->internal;
4508                 state->internal->num_used++;
4509                 dprintk(FE_INFO, 1, "Found Internal Structure!");
4510                 dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4511                         state->device == STV0900 ? "STV0900" : "STV0903",
4512                         demod,
4513                         state->internal->dev_ver);
4514                 return &state->frontend;
4515         } else {
4516                 state->internal = kmalloc(sizeof(struct stv090x_internal),
4517                                           GFP_KERNEL);
4518                 temp_int = append_internal(state->internal);
4519                 state->internal->num_used = 1;
4520                 state->internal->i2c_adap = state->i2c;
4521                 state->internal->i2c_addr = state->config->address;
4522                 dprintk(FE_INFO, 1, "Create New Internal Structure!");
4523         }
4524
4525         mutex_init(&state->internal->demod_lock);
4526         mutex_init(&state->internal->tuner_lock);
4527
4528         if (stv090x_sleep(&state->frontend) < 0) {
4529                 dprintk(FE_ERROR, 1, "Error putting device to sleep");
4530                 goto error;
4531         }
4532
4533         if (stv090x_setup(&state->frontend) < 0) {
4534                 dprintk(FE_ERROR, 1, "Error setting up device");
4535                 goto error;
4536         }
4537         if (stv090x_wakeup(&state->frontend) < 0) {
4538                 dprintk(FE_ERROR, 1, "Error waking device");
4539                 goto error;
4540         }
4541
4542         dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4543                state->device == STV0900 ? "STV0900" : "STV0903",
4544                demod,
4545                state->internal->dev_ver);
4546
4547         return &state->frontend;
4548
4549 error:
4550         kfree(state);
4551         return NULL;
4552 }
4553 EXPORT_SYMBOL(stv090x_attach);
4554 MODULE_PARM_DESC(verbose, "Set Verbosity level");
4555 MODULE_AUTHOR("Manu Abraham");
4556 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
4557 MODULE_LICENSE("GPL");