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/slab.h>
  27 #include <linux/mutex.h>
  28
  29 #include <linux/dvb/frontend.h>
  30 #include "dvb_frontend.h"
  31
  32 #include "stv6110x.h" /* for demodulator internal modes */
  33
  34 #include "stv090x_reg.h"
  35 #include "stv090x.h"
  36 #include "stv090x_priv.h"
  37
  38 static unsigned int verbose;
  39 module_param(verbose, int, 0644);
  40
  41 /* internal params node */
  42 struct stv090x_dev {
  43         /* pointer for internal params, one for each pair of demods */
  44         struct stv090x_internal         *internal;
  45         struct stv090x_dev              *next_dev;
  46 };
  47
  48 /* first internal params */
  49 static struct stv090x_dev *stv090x_first_dev;
  50
  51 /* find chip by i2c adapter and i2c address */
  52 static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
  53                                         u8 i2c_addr)
  54 {
  55         struct stv090x_dev *temp_dev = stv090x_first_dev;
  56
  57         /*
  58          Search of the last stv0900 chip or
  59          find it by i2c adapter and i2c address */
  60         while ((temp_dev != NULL) &&
  61                 ((temp_dev->internal->i2c_adap != i2c_adap) ||
  62                 (temp_dev->internal->i2c_addr != i2c_addr))) {
  63
  64                 temp_dev = temp_dev->next_dev;
  65         }
  66
  67         return temp_dev;
  68 }
  69
  70 /* deallocating chip */
  71 static void remove_dev(struct stv090x_internal *internal)
  72 {
  73         struct stv090x_dev *prev_dev = stv090x_first_dev;
  74         struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
  75                                                 internal->i2c_addr);
  76
  77         if (del_dev != NULL) {
  78                 if (del_dev == stv090x_first_dev) {
  79                         stv090x_first_dev = del_dev->next_dev;
  80                 } else {
  81                         while (prev_dev->next_dev != del_dev)
  82                                 prev_dev = prev_dev->next_dev;
  83
  84                         prev_dev->next_dev = del_dev->next_dev;
  85                 }
  86
  87                 kfree(del_dev);
  88         }
  89 }
  90
  91 /* allocating new chip */
  92 static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
  93 {
  94         struct stv090x_dev *new_dev;
  95         struct stv090x_dev *temp_dev;
  96
  97         new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
  98         if (new_dev != NULL) {
  99                 new_dev->internal = internal;
 100                 new_dev->next_dev = NULL;
 101
 102                 /* append to list */
 103                 if (stv090x_first_dev == NULL) {
 104                         stv090x_first_dev = new_dev;
 105                 } else {
 106                         temp_dev = stv090x_first_dev;
 107                         while (temp_dev->next_dev != NULL)
 108                                 temp_dev = temp_dev->next_dev;
 109
 110                         temp_dev->next_dev = new_dev;
 111                 }
 112         }
 113
 114         return new_dev;
 115 }
 116
 117
 118 /* DVBS1 and DSS C/N Lookup table */
 119 static const struct stv090x_tab stv090x_s1cn_tab[] = {
 120         {   0, 8917 }, /*  0.0dB */
 121         {   5, 8801 }, /*  0.5dB */
 122         {  10, 8667 }, /*  1.0dB */
 123         {  15, 8522 }, /*  1.5dB */
 124         {  20, 8355 }, /*  2.0dB */
 125         {  25, 8175 }, /*  2.5dB */
 126         {  30, 7979 }, /*  3.0dB */
 127         {  35, 7763 }, /*  3.5dB */
 128         {  40, 7530 }, /*  4.0dB */
 129         {  45, 7282 }, /*  4.5dB */
 130         {  50, 7026 }, /*  5.0dB */
 131         {  55, 6781 }, /*  5.5dB */
 132         {  60, 6514 }, /*  6.0dB */
 133         {  65, 6241 }, /*  6.5dB */
 134         {  70, 5965 }, /*  7.0dB */
 135         {  75, 5690 }, /*  7.5dB */
 136         {  80, 5424 }, /*  8.0dB */
 137         {  85, 5161 }, /*  8.5dB */
 138         {  90, 4902 }, /*  9.0dB */
 139         {  95, 4654 }, /*  9.5dB */
 140         { 100, 4417 }, /* 10.0dB */
 141         { 105, 4186 }, /* 10.5dB */
 142         { 110, 3968 }, /* 11.0dB */
 143         { 115, 3757 }, /* 11.5dB */
 144         { 120, 3558 }, /* 12.0dB */
 145         { 125, 3366 }, /* 12.5dB */
 146         { 130, 3185 }, /* 13.0dB */
 147         { 135, 3012 }, /* 13.5dB */
 148         { 140, 2850 }, /* 14.0dB */
 149         { 145, 2698 }, /* 14.5dB */
 150         { 150, 2550 }, /* 15.0dB */
 151         { 160, 2283 }, /* 16.0dB */
 152         { 170, 2042 }, /* 17.0dB */
 153         { 180, 1827 }, /* 18.0dB */
 154         { 190, 1636 }, /* 19.0dB */
 155         { 200, 1466 }, /* 20.0dB */
 156         { 210, 1315 }, /* 21.0dB */
 157         { 220, 1181 }, /* 22.0dB */
 158         { 230, 1064 }, /* 23.0dB */
 159         { 240,  960 }, /* 24.0dB */
 160         { 250,  869 }, /* 25.0dB */
 161         { 260,  792 }, /* 26.0dB */
 162         { 270,  724 }, /* 27.0dB */
 163         { 280,  665 }, /* 28.0dB */
 164         { 290,  616 }, /* 29.0dB */
 165         { 300,  573 }, /* 30.0dB */
 166         { 310,  537 }, /* 31.0dB */
 167         { 320,  507 }, /* 32.0dB */
 168         { 330,  483 }, /* 33.0dB */
 169         { 400,  398 }, /* 40.0dB */
 170         { 450,  381 }, /* 45.0dB */
 171         { 500,  377 }  /* 50.0dB */
 172 };
 173
 174 /* DVBS2 C/N Lookup table */
 175 static const struct stv090x_tab stv090x_s2cn_tab[] = {
 176         { -30, 13348 }, /* -3.0dB */
 177         { -20, 12640 }, /* -2d.0B */
 178         { -10, 11883 }, /* -1.0dB */
 179         {   0, 11101 }, /* -0.0dB */
 180         {   5, 10718 }, /*  0.5dB */
 181         {  10, 10339 }, /*  1.0dB */
 182         {  15,  9947 }, /*  1.5dB */
 183         {  20,  9552 }, /*  2.0dB */
 184         {  25,  9183 }, /*  2.5dB */
 185         {  30,  8799 }, /*  3.0dB */
 186         {  35,  8422 }, /*  3.5dB */
 187         {  40,  8062 }, /*  4.0dB */
 188         {  45,  7707 }, /*  4.5dB */
 189         {  50,  7353 }, /*  5.0dB */
 190         {  55,  7025 }, /*  5.5dB */
 191         {  60,  6684 }, /*  6.0dB */
 192         {  65,  6331 }, /*  6.5dB */
 193         {  70,  6036 }, /*  7.0dB */
 194         {  75,  5727 }, /*  7.5dB */
 195         {  80,  5437 }, /*  8.0dB */
 196         {  85,  5164 }, /*  8.5dB */
 197         {  90,  4902 }, /*  9.0dB */
 198         {  95,  4653 }, /*  9.5dB */
 199         { 100,  4408 }, /* 10.0dB */
 200         { 105,  4187 }, /* 10.5dB */
 201         { 110,  3961 }, /* 11.0dB */
 202         { 115,  3751 }, /* 11.5dB */
 203         { 120,  3558 }, /* 12.0dB */
 204         { 125,  3368 }, /* 12.5dB */
 205         { 130,  3191 }, /* 13.0dB */
 206         { 135,  3017 }, /* 13.5dB */
 207         { 140,  2862 }, /* 14.0dB */
 208         { 145,  2710 }, /* 14.5dB */
 209         { 150,  2565 }, /* 15.0dB */
 210         { 160,  2300 }, /* 16.0dB */
 211         { 170,  2058 }, /* 17.0dB */
 212         { 180,  1849 }, /* 18.0dB */
 213         { 190,  1663 }, /* 19.0dB */
 214         { 200,  1495 }, /* 20.0dB */
 215         { 210,  1349 }, /* 21.0dB */
 216         { 220,  1222 }, /* 22.0dB */
 217         { 230,  1110 }, /* 23.0dB */
 218         { 240,  1011 }, /* 24.0dB */
 219         { 250,   925 }, /* 25.0dB */
 220         { 260,   853 }, /* 26.0dB */
 221         { 270,   789 }, /* 27.0dB */
 222         { 280,   734 }, /* 28.0dB */
 223         { 290,   690 }, /* 29.0dB */
 224         { 300,   650 }, /* 30.0dB */
 225         { 310,   619 }, /* 31.0dB */
 226         { 320,   593 }, /* 32.0dB */
 227         { 330,   571 }, /* 33.0dB */
 228         { 400,   498 }, /* 40.0dB */
 229         { 450,   484 }, /* 45.0dB */
 230         { 500,   481 }  /* 50.0dB */
 231 };
 232
 233 /* RF level C/N lookup table */
 234 static const struct stv090x_tab stv090x_rf_tab[] = {
 235         {  -5, 0xcaa1 }, /*  -5dBm */
 236         { -10, 0xc229 }, /* -10dBm */
 237         { -15, 0xbb08 }, /* -15dBm */
 238         { -20, 0xb4bc }, /* -20dBm */
 239         { -25, 0xad5a }, /* -25dBm */
 240         { -30, 0xa298 }, /* -30dBm */
 241         { -35, 0x98a8 }, /* -35dBm */
 242         { -40, 0x8389 }, /* -40dBm */
 243         { -45, 0x59be }, /* -45dBm */
 244         { -50, 0x3a14 }, /* -50dBm */
 245         { -55, 0x2d11 }, /* -55dBm */
 246         { -60, 0x210d }, /* -60dBm */
 247         { -65, 0xa14f }, /* -65dBm */
 248         { -70, 0x07aa }  /* -70dBm */
 249 };
 250
 251
 252 static struct stv090x_reg stv0900_initval[] = {
 253
 254         { STV090x_OUTCFG,               0x00 },
 255         { STV090x_MODECFG,              0xff },
 256         { STV090x_AGCRF1CFG,            0x11 },
 257         { STV090x_AGCRF2CFG,            0x13 },
 258         { STV090x_TSGENERAL1X,          0x14 },
 259         { STV090x_TSTTNR2,              0x21 },
 260         { STV090x_TSTTNR4,              0x21 },
 261         { STV090x_P2_DISTXCTL,          0x22 },
 262         { STV090x_P2_F22TX,             0xc0 },
 263         { STV090x_P2_F22RX,             0xc0 },
 264         { STV090x_P2_DISRXCTL,          0x00 },
 265         { STV090x_P2_DMDCFGMD,          0xF9 },
 266         { STV090x_P2_DEMOD,             0x08 },
 267         { STV090x_P2_DMDCFG3,           0xc4 },
 268         { STV090x_P2_CARFREQ,           0xed },
 269         { STV090x_P2_LDT,               0xd0 },
 270         { STV090x_P2_LDT2,              0xb8 },
 271         { STV090x_P2_TMGCFG,            0xd2 },
 272         { STV090x_P2_TMGTHRISE,         0x20 },
 273         { STV090x_P1_TMGCFG,            0xd2 },
 274
 275         { STV090x_P2_TMGTHFALL,         0x00 },
 276         { STV090x_P2_FECSPY,            0x88 },
 277         { STV090x_P2_FSPYDATA,          0x3a },
 278         { STV090x_P2_FBERCPT4,          0x00 },
 279         { STV090x_P2_FSPYBER,           0x10 },
 280         { STV090x_P2_ERRCTRL1,          0x35 },
 281         { STV090x_P2_ERRCTRL2,          0xc1 },
 282         { STV090x_P2_CFRICFG,           0xf8 },
 283         { STV090x_P2_NOSCFG,            0x1c },
 284         { STV090x_P2_DMDTOM,            0x20 },
 285         { STV090x_P2_CORRELMANT,        0x70 },
 286         { STV090x_P2_CORRELABS,         0x88 },
 287         { STV090x_P2_AGC2O,             0x5b },
 288         { STV090x_P2_AGC2REF,           0x38 },
 289         { STV090x_P2_CARCFG,            0xe4 },
 290         { STV090x_P2_ACLC,              0x1A },
 291         { STV090x_P2_BCLC,              0x09 },
 292         { STV090x_P2_CARHDR,            0x08 },
 293         { STV090x_P2_KREFTMG,           0xc1 },
 294         { STV090x_P2_SFRUPRATIO,        0xf0 },
 295         { STV090x_P2_SFRLOWRATIO,       0x70 },
 296         { STV090x_P2_SFRSTEP,           0x58 },
 297         { STV090x_P2_TMGCFG2,           0x01 },
 298         { STV090x_P2_CAR2CFG,           0x26 },
 299         { STV090x_P2_BCLC2S2Q,          0x86 },
 300         { STV090x_P2_BCLC2S28,          0x86 },
 301         { STV090x_P2_SMAPCOEF7,         0x77 },
 302         { STV090x_P2_SMAPCOEF6,         0x85 },
 303         { STV090x_P2_SMAPCOEF5,         0x77 },
 304         { STV090x_P2_TSCFGL,            0x20 },
 305         { STV090x_P2_DMDCFG2,           0x3b },
 306         { STV090x_P2_MODCODLST0,        0xff },
 307         { STV090x_P2_MODCODLST1,        0xff },
 308         { STV090x_P2_MODCODLST2,        0xff },
 309         { STV090x_P2_MODCODLST3,        0xff },
 310         { STV090x_P2_MODCODLST4,        0xff },
 311         { STV090x_P2_MODCODLST5,        0xff },
 312         { STV090x_P2_MODCODLST6,        0xff },
 313         { STV090x_P2_MODCODLST7,        0xcc },
 314         { STV090x_P2_MODCODLST8,        0xcc },
 315         { STV090x_P2_MODCODLST9,        0xcc },
 316         { STV090x_P2_MODCODLSTA,        0xcc },
 317         { STV090x_P2_MODCODLSTB,        0xcc },
 318         { STV090x_P2_MODCODLSTC,        0xcc },
 319         { STV090x_P2_MODCODLSTD,        0xcc },
 320         { STV090x_P2_MODCODLSTE,        0xcc },
 321         { STV090x_P2_MODCODLSTF,        0xcf },
 322         { STV090x_P1_DISTXCTL,          0x22 },
 323         { STV090x_P1_F22TX,             0xc0 },
 324         { STV090x_P1_F22RX,             0xc0 },
 325         { STV090x_P1_DISRXCTL,          0x00 },
 326         { STV090x_P1_DMDCFGMD,          0xf9 },
 327         { STV090x_P1_DEMOD,             0x08 },
 328         { STV090x_P1_DMDCFG3,           0xc4 },
 329         { STV090x_P1_DMDTOM,            0x20 },
 330         { STV090x_P1_CARFREQ,           0xed },
 331         { STV090x_P1_LDT,               0xd0 },
 332         { STV090x_P1_LDT2,              0xb8 },
 333         { STV090x_P1_TMGCFG,            0xd2 },
 334         { STV090x_P1_TMGTHRISE,         0x20 },
 335         { STV090x_P1_TMGTHFALL,         0x00 },
 336         { STV090x_P1_SFRUPRATIO,        0xf0 },
 337         { STV090x_P1_SFRLOWRATIO,       0x70 },
 338         { STV090x_P1_TSCFGL,            0x20 },
 339         { STV090x_P1_FECSPY,            0x88 },
 340         { STV090x_P1_FSPYDATA,          0x3a },
 341         { STV090x_P1_FBERCPT4,          0x00 },
 342         { STV090x_P1_FSPYBER,           0x10 },
 343         { STV090x_P1_ERRCTRL1,          0x35 },
 344         { STV090x_P1_ERRCTRL2,          0xc1 },
 345         { STV090x_P1_CFRICFG,           0xf8 },
 346         { STV090x_P1_NOSCFG,            0x1c },
 347         { STV090x_P1_CORRELMANT,        0x70 },
 348         { STV090x_P1_CORRELABS,         0x88 },
 349         { STV090x_P1_AGC2O,             0x5b },
 350         { STV090x_P1_AGC2REF,           0x38 },
 351         { STV090x_P1_CARCFG,            0xe4 },
 352         { STV090x_P1_ACLC,              0x1A },
 353         { STV090x_P1_BCLC,              0x09 },
 354         { STV090x_P1_CARHDR,            0x08 },
 355         { STV090x_P1_KREFTMG,           0xc1 },
 356         { STV090x_P1_SFRSTEP,           0x58 },
 357         { STV090x_P1_TMGCFG2,           0x01 },
 358         { STV090x_P1_CAR2CFG,           0x26 },
 359         { STV090x_P1_BCLC2S2Q,          0x86 },
 360         { STV090x_P1_BCLC2S28,          0x86 },
 361         { STV090x_P1_SMAPCOEF7,         0x77 },
 362         { STV090x_P1_SMAPCOEF6,         0x85 },
 363         { STV090x_P1_SMAPCOEF5,         0x77 },
 364         { STV090x_P1_DMDCFG2,           0x3b },
 365         { STV090x_P1_MODCODLST0,        0xff },
 366         { STV090x_P1_MODCODLST1,        0xff },
 367         { STV090x_P1_MODCODLST2,        0xff },
 368         { STV090x_P1_MODCODLST3,        0xff },
 369         { STV090x_P1_MODCODLST4,        0xff },
 370         { STV090x_P1_MODCODLST5,        0xff },
 371         { STV090x_P1_MODCODLST6,        0xff },
 372         { STV090x_P1_MODCODLST7,        0xcc },
 373         { STV090x_P1_MODCODLST8,        0xcc },
 374         { STV090x_P1_MODCODLST9,        0xcc },
 375         { STV090x_P1_MODCODLSTA,        0xcc },
 376         { STV090x_P1_MODCODLSTB,        0xcc },
 377         { STV090x_P1_MODCODLSTC,        0xcc },
 378         { STV090x_P1_MODCODLSTD,        0xcc },
 379         { STV090x_P1_MODCODLSTE,        0xcc },
 380         { STV090x_P1_MODCODLSTF,        0xcf },
 381         { STV090x_GENCFG,               0x1d },
 382         { STV090x_NBITER_NF4,           0x37 },
 383         { STV090x_NBITER_NF5,           0x29 },
 384         { STV090x_NBITER_NF6,           0x37 },
 385         { STV090x_NBITER_NF7,           0x33 },
 386         { STV090x_NBITER_NF8,           0x31 },
 387         { STV090x_NBITER_NF9,           0x2f },
 388         { STV090x_NBITER_NF10,          0x39 },
 389         { STV090x_NBITER_NF11,          0x3a },
 390         { STV090x_NBITER_NF12,          0x29 },
 391         { STV090x_NBITER_NF13,          0x37 },
 392         { STV090x_NBITER_NF14,          0x33 },
 393         { STV090x_NBITER_NF15,          0x2f },
 394         { STV090x_NBITER_NF16,          0x39 },
 395         { STV090x_NBITER_NF17,          0x3a },
 396         { STV090x_NBITERNOERR,          0x04 },
 397         { STV090x_GAINLLR_NF4,          0x0C },
 398         { STV090x_GAINLLR_NF5,          0x0F },
 399         { STV090x_GAINLLR_NF6,          0x11 },
 400         { STV090x_GAINLLR_NF7,          0x14 },
 401         { STV090x_GAINLLR_NF8,          0x17 },
 402         { STV090x_GAINLLR_NF9,          0x19 },
 403         { STV090x_GAINLLR_NF10,         0x20 },
 404         { STV090x_GAINLLR_NF11,         0x21 },
 405         { STV090x_GAINLLR_NF12,         0x0D },
 406         { STV090x_GAINLLR_NF13,         0x0F },
 407         { STV090x_GAINLLR_NF14,         0x13 },
 408         { STV090x_GAINLLR_NF15,         0x1A },
 409         { STV090x_GAINLLR_NF16,         0x1F },
 410         { STV090x_GAINLLR_NF17,         0x21 },
 411         { STV090x_RCCFGH,               0x20 },
 412         { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 413         { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 414         { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 415         { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 416 };
 417
 418 static struct stv090x_reg stv0903_initval[] = {
 419         { STV090x_OUTCFG,               0x00 },
 420         { STV090x_AGCRF1CFG,            0x11 },
 421         { STV090x_STOPCLK1,             0x48 },
 422         { STV090x_STOPCLK2,             0x14 },
 423         { STV090x_TSTTNR1,              0x27 },
 424         { STV090x_TSTTNR2,              0x21 },
 425         { STV090x_P1_DISTXCTL,          0x22 },
 426         { STV090x_P1_F22TX,             0xc0 },
 427         { STV090x_P1_F22RX,             0xc0 },
 428         { STV090x_P1_DISRXCTL,          0x00 },
 429         { STV090x_P1_DMDCFGMD,          0xF9 },
 430         { STV090x_P1_DEMOD,             0x08 },
 431         { STV090x_P1_DMDCFG3,           0xc4 },
 432         { STV090x_P1_CARFREQ,           0xed },
 433         { STV090x_P1_TNRCFG2,           0x82 },
 434         { STV090x_P1_LDT,               0xd0 },
 435         { STV090x_P1_LDT2,              0xb8 },
 436         { STV090x_P1_TMGCFG,            0xd2 },
 437         { STV090x_P1_TMGTHRISE,         0x20 },
 438         { STV090x_P1_TMGTHFALL,         0x00 },
 439         { STV090x_P1_SFRUPRATIO,        0xf0 },
 440         { STV090x_P1_SFRLOWRATIO,       0x70 },
 441         { STV090x_P1_TSCFGL,            0x20 },
 442         { STV090x_P1_FECSPY,            0x88 },
 443         { STV090x_P1_FSPYDATA,          0x3a },
 444         { STV090x_P1_FBERCPT4,          0x00 },
 445         { STV090x_P1_FSPYBER,           0x10 },
 446         { STV090x_P1_ERRCTRL1,          0x35 },
 447         { STV090x_P1_ERRCTRL2,          0xc1 },
 448         { STV090x_P1_CFRICFG,           0xf8 },
 449         { STV090x_P1_NOSCFG,            0x1c },
 450         { STV090x_P1_DMDTOM,            0x20 },
 451         { STV090x_P1_CORRELMANT,        0x70 },
 452         { STV090x_P1_CORRELABS,         0x88 },
 453         { STV090x_P1_AGC2O,             0x5b },
 454         { STV090x_P1_AGC2REF,           0x38 },
 455         { STV090x_P1_CARCFG,            0xe4 },
 456         { STV090x_P1_ACLC,              0x1A },
 457         { STV090x_P1_BCLC,              0x09 },
 458         { STV090x_P1_CARHDR,            0x08 },
 459         { STV090x_P1_KREFTMG,           0xc1 },
 460         { STV090x_P1_SFRSTEP,           0x58 },
 461         { STV090x_P1_TMGCFG2,           0x01 },
 462         { STV090x_P1_CAR2CFG,           0x26 },
 463         { STV090x_P1_BCLC2S2Q,          0x86 },
 464         { STV090x_P1_BCLC2S28,          0x86 },
 465         { STV090x_P1_SMAPCOEF7,         0x77 },
 466         { STV090x_P1_SMAPCOEF6,         0x85 },
 467         { STV090x_P1_SMAPCOEF5,         0x77 },
 468         { STV090x_P1_DMDCFG2,           0x3b },
 469         { STV090x_P1_MODCODLST0,        0xff },
 470         { STV090x_P1_MODCODLST1,        0xff },
 471         { STV090x_P1_MODCODLST2,        0xff },
 472         { STV090x_P1_MODCODLST3,        0xff },
 473         { STV090x_P1_MODCODLST4,        0xff },
 474         { STV090x_P1_MODCODLST5,        0xff },
 475         { STV090x_P1_MODCODLST6,        0xff },
 476         { STV090x_P1_MODCODLST7,        0xcc },
 477         { STV090x_P1_MODCODLST8,        0xcc },
 478         { STV090x_P1_MODCODLST9,        0xcc },
 479         { STV090x_P1_MODCODLSTA,        0xcc },
 480         { STV090x_P1_MODCODLSTB,        0xcc },
 481         { STV090x_P1_MODCODLSTC,        0xcc },
 482         { STV090x_P1_MODCODLSTD,        0xcc },
 483         { STV090x_P1_MODCODLSTE,        0xcc },
 484         { STV090x_P1_MODCODLSTF,        0xcf },
 485         { STV090x_GENCFG,               0x1c },
 486         { STV090x_NBITER_NF4,           0x37 },
 487         { STV090x_NBITER_NF5,           0x29 },
 488         { STV090x_NBITER_NF6,           0x37 },
 489         { STV090x_NBITER_NF7,           0x33 },
 490         { STV090x_NBITER_NF8,           0x31 },
 491         { STV090x_NBITER_NF9,           0x2f },
 492         { STV090x_NBITER_NF10,          0x39 },
 493         { STV090x_NBITER_NF11,          0x3a },
 494         { STV090x_NBITER_NF12,          0x29 },
 495         { STV090x_NBITER_NF13,          0x37 },
 496         { STV090x_NBITER_NF14,          0x33 },
 497         { STV090x_NBITER_NF15,          0x2f },
 498         { STV090x_NBITER_NF16,          0x39 },
 499         { STV090x_NBITER_NF17,          0x3a },
 500         { STV090x_NBITERNOERR,          0x04 },
 501         { STV090x_GAINLLR_NF4,          0x0C },
 502         { STV090x_GAINLLR_NF5,          0x0F },
 503         { STV090x_GAINLLR_NF6,          0x11 },
 504         { STV090x_GAINLLR_NF7,          0x14 },
 505         { STV090x_GAINLLR_NF8,          0x17 },
 506         { STV090x_GAINLLR_NF9,          0x19 },
 507         { STV090x_GAINLLR_NF10,         0x20 },
 508         { STV090x_GAINLLR_NF11,         0x21 },
 509         { STV090x_GAINLLR_NF12,         0x0D },
 510         { STV090x_GAINLLR_NF13,         0x0F },
 511         { STV090x_GAINLLR_NF14,         0x13 },
 512         { STV090x_GAINLLR_NF15,         0x1A },
 513         { STV090x_GAINLLR_NF16,         0x1F },
 514         { STV090x_GAINLLR_NF17,         0x21 },
 515         { STV090x_RCCFGH,               0x20 },
 516         { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 517         { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 518 };
 519
 520 static struct stv090x_reg stv0900_cut20_val[] = {
 521
 522         { STV090x_P2_DMDCFG3,           0xe8 },
 523         { STV090x_P2_DMDCFG4,           0x10 },
 524         { STV090x_P2_CARFREQ,           0x38 },
 525         { STV090x_P2_CARHDR,            0x20 },
 526         { STV090x_P2_KREFTMG,           0x5a },
 527         { STV090x_P2_SMAPCOEF7,         0x06 },
 528         { STV090x_P2_SMAPCOEF6,         0x00 },
 529         { STV090x_P2_SMAPCOEF5,         0x04 },
 530         { STV090x_P2_NOSCFG,            0x0c },
 531         { STV090x_P1_DMDCFG3,           0xe8 },
 532         { STV090x_P1_DMDCFG4,           0x10 },
 533         { STV090x_P1_CARFREQ,           0x38 },
 534         { STV090x_P1_CARHDR,            0x20 },
 535         { STV090x_P1_KREFTMG,           0x5a },
 536         { STV090x_P1_SMAPCOEF7,         0x06 },
 537         { STV090x_P1_SMAPCOEF6,         0x00 },
 538         { STV090x_P1_SMAPCOEF5,         0x04 },
 539         { STV090x_P1_NOSCFG,            0x0c },
 540         { STV090x_GAINLLR_NF4,          0x21 },
 541         { STV090x_GAINLLR_NF5,          0x21 },
 542         { STV090x_GAINLLR_NF6,          0x20 },
 543         { STV090x_GAINLLR_NF7,          0x1F },
 544         { STV090x_GAINLLR_NF8,          0x1E },
 545         { STV090x_GAINLLR_NF9,          0x1E },
 546         { STV090x_GAINLLR_NF10,         0x1D },
 547         { STV090x_GAINLLR_NF11,         0x1B },
 548         { STV090x_GAINLLR_NF12,         0x20 },
 549         { STV090x_GAINLLR_NF13,         0x20 },
 550         { STV090x_GAINLLR_NF14,         0x20 },
 551         { STV090x_GAINLLR_NF15,         0x20 },
 552         { STV090x_GAINLLR_NF16,         0x20 },
 553         { STV090x_GAINLLR_NF17,         0x21 },
 554 };
 555
 556 static struct stv090x_reg stv0903_cut20_val[] = {
 557         { STV090x_P1_DMDCFG3,           0xe8 },
 558         { STV090x_P1_DMDCFG4,           0x10 },
 559         { STV090x_P1_CARFREQ,           0x38 },
 560         { STV090x_P1_CARHDR,            0x20 },
 561         { STV090x_P1_KREFTMG,           0x5a },
 562         { STV090x_P1_SMAPCOEF7,         0x06 },
 563         { STV090x_P1_SMAPCOEF6,         0x00 },
 564         { STV090x_P1_SMAPCOEF5,         0x04 },
 565         { STV090x_P1_NOSCFG,            0x0c },
 566         { STV090x_GAINLLR_NF4,          0x21 },
 567         { STV090x_GAINLLR_NF5,          0x21 },
 568         { STV090x_GAINLLR_NF6,          0x20 },
 569         { STV090x_GAINLLR_NF7,          0x1F },
 570         { STV090x_GAINLLR_NF8,          0x1E },
 571         { STV090x_GAINLLR_NF9,          0x1E },
 572         { STV090x_GAINLLR_NF10,         0x1D },
 573         { STV090x_GAINLLR_NF11,         0x1B },
 574         { STV090x_GAINLLR_NF12,         0x20 },
 575         { STV090x_GAINLLR_NF13,         0x20 },
 576         { STV090x_GAINLLR_NF14,         0x20 },
 577         { STV090x_GAINLLR_NF15,         0x20 },
 578         { STV090x_GAINLLR_NF16,         0x20 },
 579         { STV090x_GAINLLR_NF17,         0x21 }
 580 };
 581
 582 /* Cut 2.0 Long Frame Tracking CR loop */
 583 static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 584         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 585         { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 586         { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 587         { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 588         { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 589         { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 590         { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 591         { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 592         { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 593         { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 594         { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 595         { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 596         { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 597         { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 598         { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 599 };
 600
 601 /* Cut 3.0 Long Frame Tracking CR loop */
 602 static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
 603         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 604         { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
 605         { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 606         { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 607         { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 608         { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 609         { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 610         { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 611         { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 612         { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
 613         { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
 614         { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
 615         { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
 616         { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
 617         { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
 618 };
 619
 620 /* Cut 2.0 Long Frame Tracking CR Loop */
 621 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 622         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 623         { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 624         { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 625         { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 626         { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 627         { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 628         { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 629         { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 630         { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 631         { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 632         { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 633         { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 634 };
 635
 636 /* Cut 3.0 Long Frame Tracking CR Loop */
 637 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
 638         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 639         { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
 640         { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
 641         { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 642         { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 643         { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 644         { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 645         { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 646         { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 647         { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 648         { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 649         { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
 650 };
 651
 652 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 653         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 654         { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 655         { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 656         { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 657 };
 658
 659 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
 660         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 661         { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
 662         { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
 663         { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
 664 };
 665
 666 /* Cut 2.0 Short Frame Tracking CR Loop */
 667 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
 668         /* MODCOD         2M    5M    10M   20M   30M */
 669         { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
 670         { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
 671         { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
 672         { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
 673 };
 674
 675 /* Cut 3.0 Short Frame Tracking CR Loop */
 676 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
 677         /* MODCOD         2M    5M    10M   20M   30M */
 678         { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
 679         { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
 680         { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
 681         { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
 682 };
 683
 684 static inline s32 comp2(s32 __x, s32 __width)
 685 {
 686         if (__width == 32)
 687                 return __x;
 688         else
 689                 return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 690 }
 691
 692 static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 693 {
 694         const struct stv090x_config *config = state->config;
 695         int ret;
 696
 697         u8 b0[] = { reg >> 8, reg & 0xff };
 698         u8 buf;
 699
 700         struct i2c_msg msg[] = {
 701                 { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 702                 { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 703         };
 704
 705         ret = i2c_transfer(state->i2c, msg, 2);
 706         if (ret != 2) {
 707                 if (ret != -ERESTARTSYS)
 708                         dprintk(FE_ERROR, 1,
 709                                 "Read error, Reg=[0x%02x], Status=%d",
 710                                 reg, ret);
 711
 712                 return ret < 0 ? ret : -EREMOTEIO;
 713         }
 714         if (unlikely(*state->verbose >= FE_DEBUGREG))
 715                 dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 716                         reg, buf);
 717
 718         return (unsigned int) buf;
 719 }
 720
 721 static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 722 {
 723         const struct stv090x_config *config = state->config;
 724         int ret;
 725         u8 buf[2 + count];
 726         struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 727
 728         buf[0] = reg >> 8;
 729         buf[1] = reg & 0xff;
 730         memcpy(&buf[2], data, count);
 731
 732         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 733                 int i;
 734
 735                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 736                 for (i = 0; i < count; i++)
 737                         printk(" %02x", data[i]);
 738                 printk("\n");
 739         }
 740
 741         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 742         if (ret != 1) {
 743                 if (ret != -ERESTARTSYS)
 744                         dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 745                                 reg, data[0], count, ret);
 746                 return ret < 0 ? ret : -EREMOTEIO;
 747         }
 748
 749         return 0;
 750 }
 751
 752 static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 753 {
 754         return stv090x_write_regs(state, reg, &data, 1);
 755 }
 756
 757 static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 758 {
 759         u32 reg;
 760
 761         /*
 762          * NOTE! A lock is used as a FSM to control the state in which
 763          * access is serialized between two tuners on the same demod.
 764          * This has nothing to do with a lock to protect a critical section
 765          * which may in some other cases be confused with protecting I/O
 766          * access to the demodulator gate.
 767          * In case of any error, the lock is unlocked and exit within the
 768          * relevant operations themselves.
 769          */
 770         if (enable) {
 771                 if (state->config->tuner_i2c_lock)
 772                         state->config->tuner_i2c_lock(&state->frontend, 1);
 773                 else
 774                         mutex_lock(&state->internal->tuner_lock);
 775         }
 776
 777         reg = STV090x_READ_DEMOD(state, I2CRPT);
 778         if (enable) {
 779                 dprintk(FE_DEBUG, 1, "Enable Gate");
 780                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 781                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 782                         goto err;
 783
 784         } else {
 785                 dprintk(FE_DEBUG, 1, "Disable Gate");
 786                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 787                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 788                         goto err;
 789         }
 790
 791         if (!enable) {
 792                 if (state->config->tuner_i2c_lock)
 793                         state->config->tuner_i2c_lock(&state->frontend, 0);
 794                 else
 795                         mutex_unlock(&state->internal->tuner_lock);
 796         }
 797
 798         return 0;
 799 err:
 800         dprintk(FE_ERROR, 1, "I/O error");
 801         if (state->config->tuner_i2c_lock)
 802                 state->config->tuner_i2c_lock(&state->frontend, 0);
 803         else
 804                 mutex_unlock(&state->internal->tuner_lock);
 805         return -1;
 806 }
 807
 808 static void stv090x_get_lock_tmg(struct stv090x_state *state)
 809 {
 810         switch (state->algo) {
 811         case STV090x_BLIND_SEARCH:
 812                 dprintk(FE_DEBUG, 1, "Blind Search");
 813                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 814                         state->DemodTimeout = 1500;
 815                         state->FecTimeout = 400;
 816                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 817                         state->DemodTimeout = 1000;
 818                         state->FecTimeout = 300;
 819                 } else {  /*SR >20Msps*/
 820                         state->DemodTimeout = 700;
 821                         state->FecTimeout = 100;
 822                 }
 823                 break;
 824
 825         case STV090x_COLD_SEARCH:
 826         case STV090x_WARM_SEARCH:
 827         default:
 828                 dprintk(FE_DEBUG, 1, "Normal Search");
 829                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
 830                         state->DemodTimeout = 4500;
 831                         state->FecTimeout = 1700;
 832                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 833                         state->DemodTimeout = 2500;
 834                         state->FecTimeout = 1100;
 835                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 836                         state->DemodTimeout = 1000;
 837                         state->FecTimeout = 550;
 838                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 839                         state->DemodTimeout = 700;
 840                         state->FecTimeout = 250;
 841                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 842                         state->DemodTimeout = 400;
 843                         state->FecTimeout = 130;
 844                 } else {   /*SR >20Msps*/
 845                         state->DemodTimeout = 300;
 846                         state->FecTimeout = 100;
 847                 }
 848                 break;
 849         }
 850
 851         if (state->algo == STV090x_WARM_SEARCH)
 852                 state->DemodTimeout /= 2;
 853 }
 854
 855 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 856 {
 857         u32 sym;
 858
 859         if (srate > 60000000) {
 860                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 861                 sym /= (state->internal->mclk >> 12);
 862         } else if (srate > 6000000) {
 863                 sym  = (srate << 6);
 864                 sym /= (state->internal->mclk >> 10);
 865         } else {
 866                 sym  = (srate << 9);
 867                 sym /= (state->internal->mclk >> 7);
 868         }
 869
 870         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 871                 goto err;
 872         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 873                 goto err;
 874
 875         return 0;
 876 err:
 877         dprintk(FE_ERROR, 1, "I/O error");
 878         return -1;
 879 }
 880
 881 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 882 {
 883         u32 sym;
 884
 885         srate = 105 * (srate / 100);
 886         if (srate > 60000000) {
 887                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 888                 sym /= (state->internal->mclk >> 12);
 889         } else if (srate > 6000000) {
 890                 sym  = (srate << 6);
 891                 sym /= (state->internal->mclk >> 10);
 892         } else {
 893                 sym  = (srate << 9);
 894                 sym /= (state->internal->mclk >> 7);
 895         }
 896
 897         if (sym < 0x7fff) {
 898                 if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 899                         goto err;
 900                 if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 901                         goto err;
 902         } else {
 903                 if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 904                         goto err;
 905                 if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 906                         goto err;
 907         }
 908
 909         return 0;
 910 err:
 911         dprintk(FE_ERROR, 1, "I/O error");
 912         return -1;
 913 }
 914
 915 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 916 {
 917         u32 sym;
 918
 919         srate = 95 * (srate / 100);
 920         if (srate > 60000000) {
 921                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 922                 sym /= (state->internal->mclk >> 12);
 923         } else if (srate > 6000000) {
 924                 sym  = (srate << 6);
 925                 sym /= (state->internal->mclk >> 10);
 926         } else {
 927                 sym  = (srate << 9);
 928                 sym /= (state->internal->mclk >> 7);
 929         }
 930
 931         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 932                 goto err;
 933         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 934                 goto err;
 935         return 0;
 936 err:
 937         dprintk(FE_ERROR, 1, "I/O error");
 938         return -1;
 939 }
 940
 941 static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 942 {
 943         u32 ro;
 944
 945         switch (rolloff) {
 946         case STV090x_RO_20:
 947                 ro = 20;
 948                 break;
 949         case STV090x_RO_25:
 950                 ro = 25;
 951                 break;
 952         case STV090x_RO_35:
 953         default:
 954                 ro = 35;
 955                 break;
 956         }
 957
 958         return srate + (srate * ro) / 100;
 959 }
 960
 961 static int stv090x_set_vit_thacq(struct stv090x_state *state)
 962 {
 963         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 964                 goto err;
 965         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 966                 goto err;
 967         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 968                 goto err;
 969         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 970                 goto err;
 971         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 972                 goto err;
 973         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 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_vit_thtracq(struct stv090x_state *state)
 982 {
 983         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 984                 goto err;
 985         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 986                 goto err;
 987         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 988                 goto err;
 989         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 990                 goto err;
 991         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 992                 goto err;
 993         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 994                 goto err;
 995         return 0;
 996 err:
 997         dprintk(FE_ERROR, 1, "I/O error");
 998         return -1;
 999 }
1000
1001 static int stv090x_set_viterbi(struct stv090x_state *state)
1002 {
1003         switch (state->search_mode) {
1004         case STV090x_SEARCH_AUTO:
1005                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1006                         goto err;
1007                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1008                         goto err;
1009                 break;
1010         case STV090x_SEARCH_DVBS1:
1011                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1012                         goto err;
1013                 switch (state->fec) {
1014                 case STV090x_PR12:
1015                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1016                                 goto err;
1017                         break;
1018
1019                 case STV090x_PR23:
1020                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1021                                 goto err;
1022                         break;
1023
1024                 case STV090x_PR34:
1025                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1026                                 goto err;
1027                         break;
1028
1029                 case STV090x_PR56:
1030                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1031                                 goto err;
1032                         break;
1033
1034                 case STV090x_PR78:
1035                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1036                                 goto err;
1037                         break;
1038
1039                 default:
1040                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1041                                 goto err;
1042                         break;
1043                 }
1044                 break;
1045         case STV090x_SEARCH_DSS:
1046                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1047                         goto err;
1048                 switch (state->fec) {
1049                 case STV090x_PR12:
1050                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1051                                 goto err;
1052                         break;
1053
1054                 case STV090x_PR23:
1055                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1056                                 goto err;
1057                         break;
1058
1059                 case STV090x_PR67:
1060                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1061                                 goto err;
1062                         break;
1063
1064                 default:
1065                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1066                                 goto err;
1067                         break;
1068                 }
1069                 break;
1070         default:
1071                 break;
1072         }
1073         return 0;
1074 err:
1075         dprintk(FE_ERROR, 1, "I/O error");
1076         return -1;
1077 }
1078
1079 static int stv090x_stop_modcod(struct stv090x_state *state)
1080 {
1081         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1082                 goto err;
1083         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1084                 goto err;
1085         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1086                 goto err;
1087         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1088                 goto err;
1089         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1090                 goto err;
1091         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1092                 goto err;
1093         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1094                 goto err;
1095         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1096                 goto err;
1097         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1098                 goto err;
1099         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1100                 goto err;
1101         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1102                 goto err;
1103         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1104                 goto err;
1105         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1106                 goto err;
1107         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1108                 goto err;
1109         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1110                 goto err;
1111         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1112                 goto err;
1113         return 0;
1114 err:
1115         dprintk(FE_ERROR, 1, "I/O error");
1116         return -1;
1117 }
1118
1119 static int stv090x_activate_modcod(struct stv090x_state *state)
1120 {
1121         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1122                 goto err;
1123         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1124                 goto err;
1125         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1126                 goto err;
1127         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1128                 goto err;
1129         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1130                 goto err;
1131         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1132                 goto err;
1133         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1134                 goto err;
1135         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1136                 goto err;
1137         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1138                 goto err;
1139         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1140                 goto err;
1141         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1142                 goto err;
1143         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1144                 goto err;
1145         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1146                 goto err;
1147         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1148                 goto err;
1149         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1150                 goto err;
1151         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1152                 goto err;
1153
1154         return 0;
1155 err:
1156         dprintk(FE_ERROR, 1, "I/O error");
1157         return -1;
1158 }
1159
1160 static int stv090x_activate_modcod_single(struct stv090x_state *state)
1161 {
1162
1163         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1164                 goto err;
1165         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1166                 goto err;
1167         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1168                 goto err;
1169         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1170                 goto err;
1171         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1172                 goto err;
1173         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1174                 goto err;
1175         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1176                 goto err;
1177         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1178                 goto err;
1179         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1180                 goto err;
1181         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1182                 goto err;
1183         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1184                 goto err;
1185         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1186                 goto err;
1187         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1188                 goto err;
1189         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1190                 goto err;
1191         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1192                 goto err;
1193         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1194                 goto err;
1195
1196         return 0;
1197
1198 err:
1199         dprintk(FE_ERROR, 1, "I/O error");
1200         return -1;
1201 }
1202
1203 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1204 {
1205         u32 reg;
1206
1207         switch (state->demod) {
1208         case STV090x_DEMODULATOR_0:
1209                 mutex_lock(&state->internal->demod_lock);
1210                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1211                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1212                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1213                         goto err;
1214                 mutex_unlock(&state->internal->demod_lock);
1215                 break;
1216
1217         case STV090x_DEMODULATOR_1:
1218                 mutex_lock(&state->internal->demod_lock);
1219                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1220                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1221                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1222                         goto err;
1223                 mutex_unlock(&state->internal->demod_lock);
1224                 break;
1225
1226         default:
1227                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1228                 break;
1229         }
1230         return 0;
1231 err:
1232         mutex_unlock(&state->internal->demod_lock);
1233         dprintk(FE_ERROR, 1, "I/O error");
1234         return -1;
1235 }
1236
1237 static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1238 {
1239         if (state->internal->dev_ver >= 0x30) {
1240                 /* Set ACLC BCLC optimised value vs SR */
1241                 if (state->srate >= 15000000) {
1242                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1243                                 goto err;
1244                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1245                                 goto err;
1246                 } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1247                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1248                                 goto err;
1249                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1250                                 goto err;
1251                 } else if (state->srate < 7000000) {
1252                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1253                                 goto err;
1254                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1255                                 goto err;
1256                 }
1257
1258         } else {
1259                 /* Cut 2.0 */
1260                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1261                         goto err;
1262                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1263                         goto err;
1264         }
1265         return 0;
1266 err:
1267         dprintk(FE_ERROR, 1, "I/O error");
1268         return -1;
1269 }
1270
1271 static int stv090x_delivery_search(struct stv090x_state *state)
1272 {
1273         u32 reg;
1274
1275         switch (state->search_mode) {
1276         case STV090x_SEARCH_DVBS1:
1277         case STV090x_SEARCH_DSS:
1278                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1279                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1280                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1281                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1282                         goto err;
1283
1284                 /* Activate Viterbi decoder in legacy search,
1285                  * do not use FRESVIT1, might impact VITERBI2
1286                  */
1287                 if (stv090x_vitclk_ctl(state, 0) < 0)
1288                         goto err;
1289
1290                 if (stv090x_dvbs_track_crl(state) < 0)
1291                         goto err;
1292
1293                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1294                         goto err;
1295
1296                 if (stv090x_set_vit_thacq(state) < 0)
1297                         goto err;
1298                 if (stv090x_set_viterbi(state) < 0)
1299                         goto err;
1300                 break;
1301
1302         case STV090x_SEARCH_DVBS2:
1303                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1304                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1305                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1306                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1307                         goto err;
1308                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1309                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1310                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1311                         goto err;
1312
1313                 if (stv090x_vitclk_ctl(state, 1) < 0)
1314                         goto err;
1315
1316                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1317                         goto err;
1318                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1319                         goto err;
1320
1321                 if (state->internal->dev_ver <= 0x20) {
1322                         /* enable S2 carrier loop */
1323                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1324                                 goto err;
1325                 } else {
1326                         /* > Cut 3: Stop carrier 3 */
1327                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1328                                 goto err;
1329                 }
1330
1331                 if (state->demod_mode != STV090x_SINGLE) {
1332                         /* Cut 2: enable link during search */
1333                         if (stv090x_activate_modcod(state) < 0)
1334                                 goto err;
1335                 } else {
1336                         /* Single demodulator
1337                          * Authorize SHORT and LONG frames,
1338                          * QPSK, 8PSK, 16APSK and 32APSK
1339                          */
1340                         if (stv090x_activate_modcod_single(state) < 0)
1341                                 goto err;
1342                 }
1343
1344                 if (stv090x_set_vit_thtracq(state) < 0)
1345                         goto err;
1346                 break;
1347
1348         case STV090x_SEARCH_AUTO:
1349         default:
1350                 /* enable DVB-S2 and DVB-S2 in Auto MODE */
1351                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1352                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1353                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1354                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1355                         goto err;
1356                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1357                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1358                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1359                         goto err;
1360
1361                 if (stv090x_vitclk_ctl(state, 0) < 0)
1362                         goto err;
1363
1364                 if (stv090x_dvbs_track_crl(state) < 0)
1365                         goto err;
1366
1367                 if (state->internal->dev_ver <= 0x20) {
1368                         /* enable S2 carrier loop */
1369                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1370                                 goto err;
1371                 } else {
1372                         /* > Cut 3: Stop carrier 3 */
1373                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1374                                 goto err;
1375                 }
1376
1377                 if (state->demod_mode != STV090x_SINGLE) {
1378                         /* Cut 2: enable link during search */
1379                         if (stv090x_activate_modcod(state) < 0)
1380                                 goto err;
1381                 } else {
1382                         /* Single demodulator
1383                          * Authorize SHORT and LONG frames,
1384                          * QPSK, 8PSK, 16APSK and 32APSK
1385                          */
1386                         if (stv090x_activate_modcod_single(state) < 0)
1387                                 goto err;
1388                 }
1389
1390                 if (stv090x_set_vit_thacq(state) < 0)
1391                         goto err;
1392
1393                 if (stv090x_set_viterbi(state) < 0)
1394                         goto err;
1395                 break;
1396         }
1397         return 0;
1398 err:
1399         dprintk(FE_ERROR, 1, "I/O error");
1400         return -1;
1401 }
1402
1403 static int stv090x_start_search(struct stv090x_state *state)
1404 {
1405         u32 reg, freq_abs;
1406         s16 freq;
1407
1408         /* Reset demodulator */
1409         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1410         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1411         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1412                 goto err;
1413
1414         if (state->internal->dev_ver <= 0x20) {
1415                 if (state->srate <= 5000000) {
1416                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1417                                 goto err;
1418                         if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1419                                 goto err;
1420                         if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1421                                 goto err;
1422                         if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1423                                 goto err;
1424                         if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1425                                 goto err;
1426
1427                         /*enlarge the timing bandwidth for Low SR*/
1428                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1429                                 goto err;
1430                 } else {
1431                         /* If the symbol rate is >5 Msps
1432                         Set The carrier search up and low to auto mode */
1433                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1434                                 goto err;
1435                         /*reduce the timing bandwidth for high SR*/
1436                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1437                                 goto err;
1438                 }
1439         } else {
1440                 /* >= Cut 3 */
1441                 if (state->srate <= 5000000) {
1442                         /* enlarge the timing bandwidth for Low SR */
1443                         STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1444                 } else {
1445                         /* reduce timing bandwidth for high SR */
1446                         STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1447                 }
1448
1449                 /* Set CFR min and max to manual mode */
1450                 STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1451
1452                 if (state->algo == STV090x_WARM_SEARCH) {
1453                         /* WARM Start
1454                          * CFR min = -1MHz,
1455                          * CFR max = +1MHz
1456                          */
1457                         freq_abs  = 1000 << 16;
1458                         freq_abs /= (state->internal->mclk / 1000);
1459                         freq      = (s16) freq_abs;
1460                 } else {
1461                         /* COLD Start
1462                          * CFR min =- (SearchRange / 2 + 600KHz)
1463                          * CFR max = +(SearchRange / 2 + 600KHz)
1464                          * (600KHz for the tuner step size)
1465                          */
1466                         freq_abs  = (state->search_range / 2000) + 600;
1467                         freq_abs  = freq_abs << 16;
1468                         freq_abs /= (state->internal->mclk / 1000);
1469                         freq      = (s16) freq_abs;
1470                 }
1471
1472                 if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1473                         goto err;
1474                 if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1475                         goto err;
1476
1477                 freq *= -1;
1478
1479                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1480                         goto err;
1481                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1482                         goto err;
1483
1484         }
1485
1486         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1487                 goto err;
1488         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1489                 goto err;
1490
1491         if (state->internal->dev_ver >= 0x20) {
1492                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1493                         goto err;
1494                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1495                         goto err;
1496
1497                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1498                         (state->search_mode == STV090x_SEARCH_DSS)      ||
1499                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1500
1501                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1502                                 goto err;
1503                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1504                                 goto err;
1505                 }
1506         }
1507
1508         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1509                 goto err;
1510         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1511                 goto err;
1512         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1513                 goto err;
1514
1515         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1516         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1517         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1518         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1519                 goto err;
1520         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1521         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1522         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1523                 goto err;
1524
1525         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1526                 goto err;
1527
1528         if (state->internal->dev_ver >= 0x20) {
1529                 /*Frequency offset detector setting*/
1530                 if (state->srate < 2000000) {
1531                         if (state->internal->dev_ver <= 0x20) {
1532                                 /* Cut 2 */
1533                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1534                                         goto err;
1535                         } else {
1536                                 /* Cut 3 */
1537                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1538                                         goto err;
1539                         }
1540                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1541                                 goto err;
1542                 } else if (state->srate < 10000000) {
1543                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1544                                 goto err;
1545                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1546                                 goto err;
1547                 } else {
1548                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1549                                 goto err;
1550                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1551                                 goto err;
1552                 }
1553         } else {
1554                 if (state->srate < 10000000) {
1555                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1556                                 goto err;
1557                 } else {
1558                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1559                                 goto err;
1560                 }
1561         }
1562
1563         switch (state->algo) {
1564         case STV090x_WARM_SEARCH:
1565                 /* The symbol rate and the exact
1566                  * carrier Frequency are known
1567                  */
1568                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1569                         goto err;
1570                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1571                         goto err;
1572                 break;
1573
1574         case STV090x_COLD_SEARCH:
1575                 /* The symbol rate is known */
1576                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1577                         goto err;
1578                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1579                         goto err;
1580                 break;
1581
1582         default:
1583                 break;
1584         }
1585         return 0;
1586 err:
1587         dprintk(FE_ERROR, 1, "I/O error");
1588         return -1;
1589 }
1590
1591 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1592 {
1593         u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1594         s32 i, j, steps, dir;
1595
1596         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1597                 goto err;
1598         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1599         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1600         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1601         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1602                 goto err;
1603
1604         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1605                 goto err;
1606         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1607                 goto err;
1608         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1609                 goto err;
1610         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1611                 goto err;
1612         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1613                 goto err;
1614         if (stv090x_set_srate(state, 1000000) < 0)
1615                 goto err;
1616
1617         steps  = state->search_range / 1000000;
1618         if (steps <= 0)
1619                 steps = 1;
1620
1621         dir = 1;
1622         freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1623         freq_init = 0;
1624
1625         for (i = 0; i < steps; i++) {
1626                 if (dir > 0)
1627                         freq_init = freq_init + (freq_step * i);
1628                 else
1629                         freq_init = freq_init - (freq_step * i);
1630
1631                 dir *= -1;
1632
1633                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1634                         goto err;
1635                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1636                         goto err;
1637                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1638                         goto err;
1639                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1640                         goto err;
1641                 msleep(10);
1642
1643                 agc2 = 0;
1644                 for (j = 0; j < 10; j++) {
1645                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1646                                 STV090x_READ_DEMOD(state, AGC2I0);
1647                 }
1648                 agc2 /= 10;
1649                 if (agc2 < agc2_min)
1650                         agc2_min = agc2;
1651         }
1652
1653         return agc2_min;
1654 err:
1655         dprintk(FE_ERROR, 1, "I/O error");
1656         return -1;
1657 }
1658
1659 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1660 {
1661         u8 r3, r2, r1, r0;
1662         s32 srate, int_1, int_2, tmp_1, tmp_2;
1663
1664         r3 = STV090x_READ_DEMOD(state, SFR3);
1665         r2 = STV090x_READ_DEMOD(state, SFR2);
1666         r1 = STV090x_READ_DEMOD(state, SFR1);
1667         r0 = STV090x_READ_DEMOD(state, SFR0);
1668
1669         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1670
1671         int_1 = clk >> 16;
1672         int_2 = srate >> 16;
1673
1674         tmp_1 = clk % 0x10000;
1675         tmp_2 = srate % 0x10000;
1676
1677         srate = (int_1 * int_2) +
1678                 ((int_1 * tmp_2) >> 16) +
1679                 ((int_2 * tmp_1) >> 16);
1680
1681         return srate;
1682 }
1683
1684 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1685 {
1686         struct dvb_frontend *fe = &state->frontend;
1687
1688         int tmg_lock = 0, i;
1689         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1690         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1691         u32 agc2th;
1692
1693         if (state->internal->dev_ver >= 0x30)
1694                 agc2th = 0x2e00;
1695         else
1696                 agc2th = 0x1f00;
1697
1698         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1699         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1700         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1701                 goto err;
1702         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1703                 goto err;
1704         if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1705                 goto err;
1706         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1707                 goto err;
1708         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1709                 goto err;
1710         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1711         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1712         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1713         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1714                 goto err;
1715
1716         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1717                 goto err;
1718         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1719                 goto err;
1720         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1721                 goto err;
1722         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1723                 goto err;
1724         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1725                 goto err;
1726         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1727                 goto err;
1728
1729         if (state->internal->dev_ver >= 0x30) {
1730                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1731                         goto err;
1732                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1733                         goto err;
1734
1735         } else if (state->internal->dev_ver >= 0x20) {
1736                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1737                         goto err;
1738                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1739                         goto err;
1740         }
1741
1742         if (state->srate <= 2000000)
1743                 car_step = 1000;
1744         else if (state->srate <= 5000000)
1745                 car_step = 2000;
1746         else if (state->srate <= 12000000)
1747                 car_step = 3000;
1748         else
1749                 car_step = 5000;
1750
1751         steps  = -1 + ((state->search_range / 1000) / car_step);
1752         steps /= 2;
1753         steps  = (2 * steps) + 1;
1754         if (steps < 0)
1755                 steps = 1;
1756         else if (steps > 10) {
1757                 steps = 11;
1758                 car_step = (state->search_range / 1000) / 10;
1759         }
1760         cur_step = 0;
1761         dir = 1;
1762         freq = state->frequency;
1763
1764         while ((!tmg_lock) && (cur_step < steps)) {
1765                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1766                         goto err;
1767                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1768                         goto err;
1769                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1770                         goto err;
1771                 if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1772                         goto err;
1773                 if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1774                         goto err;
1775                 /* trigger acquisition */
1776                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1777                         goto err;
1778                 msleep(50);
1779                 for (i = 0; i < 10; i++) {
1780                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1781                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1782                                 tmg_cpt++;
1783                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1784                                 STV090x_READ_DEMOD(state, AGC2I0);
1785                 }
1786                 agc2 /= 10;
1787                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1788                 cur_step++;
1789                 dir *= -1;
1790                 if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1791                     (srate_coarse < 50000000) && (srate_coarse > 850000))
1792                         tmg_lock = 1;
1793                 else if (cur_step < steps) {
1794                         if (dir > 0)
1795                                 freq += cur_step * car_step;
1796                         else
1797                                 freq -= cur_step * car_step;
1798
1799                         /* Setup tuner */
1800                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1801                                 goto err;
1802
1803                         if (state->config->tuner_set_frequency) {
1804                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
1805                                         goto err_gateoff;
1806                         }
1807
1808                         if (state->config->tuner_set_bandwidth) {
1809                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1810                                         goto err_gateoff;
1811                         }
1812
1813                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1814                                 goto err;
1815
1816                         msleep(50);
1817
1818                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1819                                 goto err;
1820
1821                         if (state->config->tuner_get_status) {
1822                                 if (state->config->tuner_get_status(fe, &reg) < 0)
1823                                         goto err_gateoff;
1824                         }
1825
1826                         if (reg)
1827                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1828                         else
1829                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1830
1831                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1832                                 goto err;
1833
1834                 }
1835         }
1836         if (!tmg_lock)
1837                 srate_coarse = 0;
1838         else
1839                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1840
1841         return srate_coarse;
1842
1843 err_gateoff:
1844         stv090x_i2c_gate_ctrl(state, 0);
1845 err:
1846         dprintk(FE_ERROR, 1, "I/O error");
1847         return -1;
1848 }
1849
1850 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1851 {
1852         u32 srate_coarse, freq_coarse, sym, reg;
1853
1854         srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1855         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1856         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1857         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1858
1859         if (sym < state->srate)
1860                 srate_coarse = 0;
1861         else {
1862                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1863                         goto err;
1864                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1865                         goto err;
1866                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1867                         goto err;
1868                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1869                         goto err;
1870                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1871                         goto err;
1872                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1873                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1874                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1875                         goto err;
1876
1877                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1878                         goto err;
1879
1880                 if (state->internal->dev_ver >= 0x30) {
1881                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1882                                 goto err;
1883                 } else if (state->internal->dev_ver >= 0x20) {
1884                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1885                                 goto err;
1886                 }
1887
1888                 if (srate_coarse > 3000000) {
1889                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1890                         sym  = (sym / 1000) * 65536;
1891                         sym /= (state->internal->mclk / 1000);
1892                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1893                                 goto err;
1894                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1895                                 goto err;
1896                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1897                         sym  = (sym / 1000) * 65536;
1898                         sym /= (state->internal->mclk / 1000);
1899                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1900                                 goto err;
1901                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1902                                 goto err;
1903                         sym  = (srate_coarse / 1000) * 65536;
1904                         sym /= (state->internal->mclk / 1000);
1905                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1906                                 goto err;
1907                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1908                                 goto err;
1909                 } else {
1910                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1911                         sym  = (sym / 100) * 65536;
1912                         sym /= (state->internal->mclk / 100);
1913                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1914                                 goto err;
1915                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1916                                 goto err;
1917                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1918                         sym  = (sym / 100) * 65536;
1919                         sym /= (state->internal->mclk / 100);
1920                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1921                                 goto err;
1922                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1923                                 goto err;
1924                         sym  = (srate_coarse / 100) * 65536;
1925                         sym /= (state->internal->mclk / 100);
1926                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1927                                 goto err;
1928                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1929                                 goto err;
1930                 }
1931                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1932                         goto err;
1933                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1934                         goto err;
1935                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1936                         goto err;
1937                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1938                         goto err;
1939         }
1940
1941         return srate_coarse;
1942
1943 err:
1944         dprintk(FE_ERROR, 1, "I/O error");
1945         return -1;
1946 }
1947
1948 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1949 {
1950         s32 timer = 0, lock = 0;
1951         u32 reg;
1952         u8 stat;
1953
1954         while ((timer < timeout) && (!lock)) {
1955                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1956                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1957
1958                 switch (stat) {
1959                 case 0: /* searching */
1960                 case 1: /* first PLH detected */
1961                 default:
1962                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1963                         lock = 0;
1964                         break;
1965                 case 2: /* DVB-S2 mode */
1966                 case 3: /* DVB-S1/legacy mode */
1967                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1968                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1969                         break;
1970                 }
1971
1972                 if (!lock)
1973                         msleep(10);
1974                 else
1975                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1976
1977                 timer += 10;
1978         }
1979         return lock;
1980 }
1981
1982 static int stv090x_blind_search(struct stv090x_state *state)
1983 {
1984         u32 agc2, reg, srate_coarse;
1985         s32 cpt_fail, agc2_ovflw, i;
1986         u8 k_ref, k_max, k_min;
1987         int coarse_fail = 0;
1988         int lock;
1989
1990         k_max = 110;
1991         k_min = 10;
1992
1993         agc2 = stv090x_get_agc2_min_level(state);
1994
1995         if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1996                 lock = 0;
1997         } else {
1998
1999                 if (state->internal->dev_ver <= 0x20) {
2000                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
2001                                 goto err;
2002                 } else {
2003                         /* > Cut 3 */
2004                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
2005                                 goto err;
2006                 }
2007
2008                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2009                         goto err;
2010
2011                 if (state->internal->dev_ver >= 0x20) {
2012                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2013                                 goto err;
2014                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2015                                 goto err;
2016                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2017                                 goto err;
2018                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2019                                 goto err;
2020                 }
2021
2022                 k_ref = k_max;
2023                 do {
2024                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2025                                 goto err;
2026                         if (stv090x_srate_srch_coarse(state) != 0) {
2027                                 srate_coarse = stv090x_srate_srch_fine(state);
2028                                 if (srate_coarse != 0) {
2029                                         stv090x_get_lock_tmg(state);
2030                                         lock = stv090x_get_dmdlock(state,
2031                                                         state->DemodTimeout);
2032                                 } else {
2033                                         lock = 0;
2034                                 }
2035                         } else {
2036                                 cpt_fail = 0;
2037                                 agc2_ovflw = 0;
2038                                 for (i = 0; i < 10; i++) {
2039                                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2040                                                 STV090x_READ_DEMOD(state, AGC2I0);
2041                                         if (agc2 >= 0xff00)
2042                                                 agc2_ovflw++;
2043                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
2044                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2045                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2046
2047                                                 cpt_fail++;
2048                                 }
2049                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
2050                                         coarse_fail = 1;
2051
2052                                 lock = 0;
2053                         }
2054                         k_ref -= 20;
2055                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2056         }
2057
2058         return lock;
2059
2060 err:
2061         dprintk(FE_ERROR, 1, "I/O error");
2062         return -1;
2063 }
2064
2065 static int stv090x_chk_tmg(struct stv090x_state *state)
2066 {
2067         u32 reg;
2068         s32 tmg_cpt = 0, i;
2069         u8 freq, tmg_thh, tmg_thl;
2070         int tmg_lock = 0;
2071
2072         freq = STV090x_READ_DEMOD(state, CARFREQ);
2073         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2074         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2075         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2076                 goto err;
2077         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2078                 goto err;
2079
2080         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2081         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2082         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2083                 goto err;
2084         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2085                 goto err;
2086
2087         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2088                 goto err;
2089         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2090                 goto err;
2091
2092         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2093                 goto err;
2094         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2095                 goto err;
2096         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2097                 goto err;
2098
2099         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2100                 goto err;
2101         msleep(10);
2102
2103         for (i = 0; i < 10; i++) {
2104                 reg = STV090x_READ_DEMOD(state, DSTATUS);
2105                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2106                         tmg_cpt++;
2107                 msleep(1);
2108         }
2109         if (tmg_cpt >= 3)
2110                 tmg_lock = 1;
2111
2112         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2113                 goto err;
2114         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2115                 goto err;
2116         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2117                 goto err;
2118
2119         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2120                 goto err;
2121         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2122                 goto err;
2123         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2124                 goto err;
2125
2126         return  tmg_lock;
2127
2128 err:
2129         dprintk(FE_ERROR, 1, "I/O error");
2130         return -1;
2131 }
2132
2133 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2134 {
2135         struct dvb_frontend *fe = &state->frontend;
2136
2137         u32 reg;
2138         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2139         int lock = 0;
2140
2141         if (state->srate >= 10000000)
2142                 timeout_lock = timeout_dmd / 3;
2143         else
2144                 timeout_lock = timeout_dmd / 2;
2145
2146         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2147         if (!lock) {
2148                 if (state->srate >= 10000000) {
2149                         if (stv090x_chk_tmg(state)) {
2150                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2151                                         goto err;
2152                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2153                                         goto err;
2154                                 lock = stv090x_get_dmdlock(state, timeout_dmd);
2155                         } else {
2156                                 lock = 0;
2157                         }
2158                 } else {
2159                         if (state->srate <= 4000000)
2160                                 car_step = 1000;
2161                         else if (state->srate <= 7000000)
2162                                 car_step = 2000;
2163                         else if (state->srate <= 10000000)
2164                                 car_step = 3000;
2165                         else
2166                                 car_step = 5000;
2167
2168                         steps  = (state->search_range / 1000) / car_step;
2169                         steps /= 2;
2170                         steps  = 2 * (steps + 1);
2171                         if (steps < 0)
2172                                 steps = 2;
2173                         else if (steps > 12)
2174                                 steps = 12;
2175
2176                         cur_step = 1;
2177                         dir = 1;
2178
2179                         if (!lock) {
2180                                 freq = state->frequency;
2181                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2182                                 while ((cur_step <= steps) && (!lock)) {
2183                                         if (dir > 0)
2184                                                 freq += cur_step * car_step;
2185                                         else
2186                                                 freq -= cur_step * car_step;
2187
2188                                         /* Setup tuner */
2189                                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2190                                                 goto err;
2191
2192                                         if (state->config->tuner_set_frequency) {
2193                                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
2194                                                         goto err_gateoff;
2195                                         }
2196
2197                                         if (state->config->tuner_set_bandwidth) {
2198                                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2199                                                         goto err_gateoff;
2200                                         }
2201
2202                                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2203                                                 goto err;
2204
2205                                         msleep(50);
2206
2207                                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2208                                                 goto err;
2209
2210                                         if (state->config->tuner_get_status) {
2211                                                 if (state->config->tuner_get_status(fe, &reg) < 0)
2212                                                         goto err_gateoff;
2213                                         }
2214
2215                                         if (reg)
2216                                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2217                                         else
2218                                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2219
2220                                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2221                                                 goto err;
2222
2223                                         STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2224                                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2225                                                 goto err;
2226                                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2227                                                 goto err;
2228                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2229                                                 goto err;
2230                                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2231                                                 goto err;
2232                                         lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2233
2234                                         dir *= -1;
2235                                         cur_step++;
2236                                 }
2237                         }
2238                 }
2239         }
2240
2241         return lock;
2242
2243 err_gateoff:
2244         stv090x_i2c_gate_ctrl(state, 0);
2245 err:
2246         dprintk(FE_ERROR, 1, "I/O error");
2247         return -1;
2248 }
2249
2250 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2251 {
2252         s32 timeout, inc, steps_max, srate, car_max;
2253
2254         srate = state->srate;
2255         car_max = state->search_range / 1000;
2256         car_max += car_max / 10;
2257         car_max  = 65536 * (car_max / 2);
2258         car_max /= (state->internal->mclk / 1000);
2259
2260         if (car_max > 0x4000)
2261                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2262
2263         inc  = srate;
2264         inc /= state->internal->mclk / 1000;
2265         inc *= 256;
2266         inc *= 256;
2267         inc /= 1000;
2268
2269         switch (state->search_mode) {
2270         case STV090x_SEARCH_DVBS1:
2271         case STV090x_SEARCH_DSS:
2272                 inc *= 3; /* freq step = 3% of srate */
2273                 timeout = 20;
2274                 break;
2275
2276         case STV090x_SEARCH_DVBS2:
2277                 inc *= 4;
2278                 timeout = 25;
2279                 break;
2280
2281         case STV090x_SEARCH_AUTO:
2282         default:
2283                 inc *= 3;
2284                 timeout = 25;
2285                 break;
2286         }
2287         inc /= 100;
2288         if ((inc > car_max) || (inc < 0))
2289                 inc = car_max / 2; /* increment <= 1/8 Mclk */
2290
2291         timeout *= 27500; /* 27.5 Msps reference */
2292         if (srate > 0)
2293                 timeout /= (srate / 1000);
2294
2295         if ((timeout > 100) || (timeout < 0))
2296                 timeout = 100;
2297
2298         steps_max = (car_max / inc) + 1; /* min steps = 3 */
2299         if ((steps_max > 100) || (steps_max < 0)) {
2300                 steps_max = 100; /* max steps <= 100 */
2301                 inc = car_max / steps_max;
2302         }
2303         *freq_inc = inc;
2304         *timeout_sw = timeout;
2305         *steps = steps_max;
2306
2307         return 0;
2308 }
2309
2310 static int stv090x_chk_signal(struct stv090x_state *state)
2311 {
2312         s32 offst_car, agc2, car_max;
2313         int no_signal;
2314
2315         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2316         offst_car |= STV090x_READ_DEMOD(state, CFR1);
2317         offst_car = comp2(offst_car, 16);
2318
2319         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2320         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2321         car_max = state->search_range / 1000;
2322
2323         car_max += (car_max / 10); /* 10% margin */
2324         car_max  = (65536 * car_max / 2);
2325         car_max /= state->internal->mclk / 1000;
2326
2327         if (car_max > 0x4000)
2328                 car_max = 0x4000;
2329
2330         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2331                 no_signal = 1;
2332                 dprintk(FE_DEBUG, 1, "No Signal");
2333         } else {
2334                 no_signal = 0;
2335                 dprintk(FE_DEBUG, 1, "Found Signal");
2336         }
2337
2338         return no_signal;
2339 }
2340
2341 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2342 {
2343         int no_signal, lock = 0;
2344         s32 cpt_step = 0, offst_freq, car_max;
2345         u32 reg;
2346
2347         car_max  = state->search_range / 1000;
2348         car_max += (car_max / 10);
2349         car_max  = (65536 * car_max / 2);
2350         car_max /= (state->internal->mclk / 1000);
2351         if (car_max > 0x4000)
2352                 car_max = 0x4000;
2353
2354         if (zigzag)
2355                 offst_freq = 0;
2356         else
2357                 offst_freq = -car_max + inc;
2358
2359         do {
2360                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2361                         goto err;
2362                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2363                         goto err;
2364                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2365                         goto err;
2366                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2367                         goto err;
2368
2369                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2370                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2371                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2372                         goto err;
2373
2374                 if (zigzag) {
2375                         if (offst_freq >= 0)
2376                                 offst_freq = -offst_freq - 2 * inc;
2377                         else
2378                                 offst_freq = -offst_freq;
2379                 } else {
2380                         offst_freq += 2 * inc;
2381                 }
2382
2383                 cpt_step++;
2384
2385                 lock = stv090x_get_dmdlock(state, timeout);
2386                 no_signal = stv090x_chk_signal(state);
2387
2388         } while ((!lock) &&
2389                  (!no_signal) &&
2390                   ((offst_freq - inc) < car_max) &&
2391                   ((offst_freq + inc) > -car_max) &&
2392                   (cpt_step < steps_max));
2393
2394         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2395         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2396         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2397                         goto err;
2398
2399         return lock;
2400 err:
2401         dprintk(FE_ERROR, 1, "I/O error");
2402         return -1;
2403 }
2404
2405 static int stv090x_sw_algo(struct stv090x_state *state)
2406 {
2407         int no_signal, zigzag, lock = 0;
2408         u32 reg;
2409
2410         s32 dvbs2_fly_wheel;
2411         s32 inc, timeout_step, trials, steps_max;
2412
2413         /* get params */
2414         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2415
2416         switch (state->search_mode) {
2417         case STV090x_SEARCH_DVBS1:
2418         case STV090x_SEARCH_DSS:
2419                 /* accelerate the frequency detector */
2420                 if (state->internal->dev_ver >= 0x20) {
2421                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2422                                 goto err;
2423                 }
2424
2425                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2426                         goto err;
2427                 zigzag = 0;
2428                 break;
2429
2430         case STV090x_SEARCH_DVBS2:
2431                 if (state->internal->dev_ver >= 0x20) {
2432                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2433                                 goto err;
2434                 }
2435
2436                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2437                         goto err;
2438                 zigzag = 1;
2439                 break;
2440
2441         case STV090x_SEARCH_AUTO:
2442         default:
2443                 /* accelerate the frequency detector */
2444                 if (state->internal->dev_ver >= 0x20) {
2445                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2446                                 goto err;
2447                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2448                                 goto err;
2449                 }
2450
2451                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2452                         goto err;
2453                 zigzag = 0;
2454                 break;
2455         }
2456
2457         trials = 0;
2458         do {
2459                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2460                 no_signal = stv090x_chk_signal(state);
2461                 trials++;
2462
2463                 /*run the SW search 2 times maximum*/
2464                 if (lock || no_signal || (trials == 2)) {
2465                         /*Check if the demod is not losing lock in DVBS2*/
2466                         if (state->internal->dev_ver >= 0x20) {
2467                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2468                                         goto err;
2469                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2470                                         goto err;
2471                         }
2472
2473                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2474                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2475                                 /*Check if the demod is not losing lock in DVBS2*/
2476                                 msleep(timeout_step);
2477                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2478                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2479                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2480                                         msleep(timeout_step);
2481                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2482                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2483                                 }
2484                                 if (dvbs2_fly_wheel < 0xd) {
2485                                         /*FALSE lock, The demod is losing lock */
2486                                         lock = 0;
2487                                         if (trials < 2) {
2488                                                 if (state->internal->dev_ver >= 0x20) {
2489                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2490                                                                 goto err;
2491                                                 }
2492
2493                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2494                                                         goto err;
2495                                         }
2496                                 }
2497                         }
2498                 }
2499         } while ((!lock) && (trials < 2) && (!no_signal));
2500
2501         return lock;
2502 err:
2503         dprintk(FE_ERROR, 1, "I/O error");
2504         return -1;
2505 }
2506
2507 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2508 {
2509         u32 reg;
2510         enum stv090x_delsys delsys;
2511
2512         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2513         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2514                 delsys = STV090x_DVBS2;
2515         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2516                 reg = STV090x_READ_DEMOD(state, FECM);
2517                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2518                         delsys = STV090x_DSS;
2519                 else
2520                         delsys = STV090x_DVBS1;
2521         } else {
2522                 delsys = STV090x_ERROR;
2523         }
2524
2525         return delsys;
2526 }
2527
2528 /* in Hz */
2529 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2530 {
2531         s32 derot, int_1, int_2, tmp_1, tmp_2;
2532
2533         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2534         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2535         derot |= STV090x_READ_DEMOD(state, CFR0);
2536
2537         derot = comp2(derot, 24);
2538         int_1 = mclk >> 12;
2539         int_2 = derot >> 12;
2540
2541         /* carrier_frequency = MasterClock * Reg / 2^24 */
2542         tmp_1 = mclk % 0x1000;
2543         tmp_2 = derot % 0x1000;
2544
2545         derot = (int_1 * int_2) +
2546                 ((int_1 * tmp_2) >> 12) +
2547                 ((int_2 * tmp_1) >> 12);
2548
2549         return derot;
2550 }
2551
2552 static int stv090x_get_viterbi(struct stv090x_state *state)
2553 {
2554         u32 reg, rate;
2555
2556         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2557         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2558
2559         switch (rate) {
2560         case 13:
2561                 state->fec = STV090x_PR12;
2562                 break;
2563
2564         case 18:
2565                 state->fec = STV090x_PR23;
2566                 break;
2567
2568         case 21:
2569                 state->fec = STV090x_PR34;
2570                 break;
2571
2572         case 24:
2573                 state->fec = STV090x_PR56;
2574                 break;
2575
2576         case 25:
2577                 state->fec = STV090x_PR67;
2578                 break;
2579
2580         case 26:
2581                 state->fec = STV090x_PR78;
2582                 break;
2583
2584         default:
2585                 state->fec = STV090x_PRERR;
2586                 break;
2587         }
2588
2589         return 0;
2590 }
2591
2592 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2593 {
2594         struct dvb_frontend *fe = &state->frontend;
2595
2596         u8 tmg;
2597         u32 reg;
2598         s32 i = 0, offst_freq;
2599
2600         msleep(5);
2601
2602         if (state->algo == STV090x_BLIND_SEARCH) {
2603                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2604                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2605                 while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2606                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2607                         msleep(5);
2608                         i += 5;
2609                 }
2610         }
2611         state->delsys = stv090x_get_std(state);
2612
2613         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2614                 goto err;
2615
2616         if (state->config->tuner_get_frequency) {
2617                 if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2618                         goto err_gateoff;
2619         }
2620
2621         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2622                 goto err;
2623
2624         offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2625         state->frequency += offst_freq;
2626
2627         if (stv090x_get_viterbi(state) < 0)
2628                 goto err;
2629
2630         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2631         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2632         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2633         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2634         reg = STV090x_READ_DEMOD(state, TMGOBS);
2635         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2636         reg = STV090x_READ_DEMOD(state, FECM);
2637         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2638
2639         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2640
2641                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2642                         goto err;
2643
2644                 if (state->config->tuner_get_frequency) {
2645                         if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2646                                 goto err_gateoff;
2647                 }
2648
2649                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2650                         goto err;
2651
2652                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2653                         return STV090x_RANGEOK;
2654                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2655                         return STV090x_RANGEOK;
2656                 else
2657                         return STV090x_OUTOFRANGE; /* Out of Range */
2658         } else {
2659                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2660                         return STV090x_RANGEOK;
2661                 else
2662                         return STV090x_OUTOFRANGE;
2663         }
2664
2665         return STV090x_OUTOFRANGE;
2666
2667 err_gateoff:
2668         stv090x_i2c_gate_ctrl(state, 0);
2669 err:
2670         dprintk(FE_ERROR, 1, "I/O error");
2671         return -1;
2672 }
2673
2674 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2675 {
2676         s32 offst_tmg;
2677
2678         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2679         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2680         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2681
2682         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2683         if (!offst_tmg)
2684                 offst_tmg = 1;
2685
2686         offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2687         offst_tmg /= 320;
2688
2689         return offst_tmg;
2690 }
2691
2692 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2693 {
2694         u8 aclc = 0x29;
2695         s32 i;
2696         struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2697
2698         if (state->internal->dev_ver == 0x20) {
2699                 car_loop                = stv090x_s2_crl_cut20;
2700                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2701                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2702         } else {
2703                 /* >= Cut 3 */
2704                 car_loop                = stv090x_s2_crl_cut30;
2705                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2706                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2707         }
2708
2709         if (modcod < STV090x_QPSK_12) {
2710                 i = 0;
2711                 while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2712                         i++;
2713
2714                 if (i >= 3)
2715                         i = 2;
2716
2717         } else {
2718                 i = 0;
2719                 while ((i < 14) && (modcod != car_loop[i].modcod))
2720                         i++;
2721
2722                 if (i >= 14) {
2723                         i = 0;
2724                         while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2725                                 i++;
2726
2727                         if (i >= 11)
2728                                 i = 10;
2729                 }
2730         }
2731
2732         if (modcod <= STV090x_QPSK_25) {
2733                 if (pilots) {
2734                         if (state->srate <= 3000000)
2735                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2736                         else if (state->srate <= 7000000)
2737                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2738                         else if (state->srate <= 15000000)
2739                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2740                         else if (state->srate <= 25000000)
2741                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2742                         else
2743                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2744                 } else {
2745                         if (state->srate <= 3000000)
2746                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2747                         else if (state->srate <= 7000000)
2748                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2749                         else if (state->srate <= 15000000)
2750                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2751                         else if (state->srate <= 25000000)
2752                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2753                         else
2754                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2755                 }
2756
2757         } else if (modcod <= STV090x_8PSK_910) {
2758                 if (pilots) {
2759                         if (state->srate <= 3000000)
2760                                 aclc = car_loop[i].crl_pilots_on_2;
2761                         else if (state->srate <= 7000000)
2762                                 aclc = car_loop[i].crl_pilots_on_5;
2763                         else if (state->srate <= 15000000)
2764                                 aclc = car_loop[i].crl_pilots_on_10;
2765                         else if (state->srate <= 25000000)
2766                                 aclc = car_loop[i].crl_pilots_on_20;
2767                         else
2768                                 aclc = car_loop[i].crl_pilots_on_30;
2769                 } else {
2770                         if (state->srate <= 3000000)
2771                                 aclc = car_loop[i].crl_pilots_off_2;
2772                         else if (state->srate <= 7000000)
2773                                 aclc = car_loop[i].crl_pilots_off_5;
2774                         else if (state->srate <= 15000000)
2775                                 aclc = car_loop[i].crl_pilots_off_10;
2776                         else if (state->srate <= 25000000)
2777                                 aclc = car_loop[i].crl_pilots_off_20;
2778                         else
2779                                 aclc = car_loop[i].crl_pilots_off_30;
2780                 }
2781         } else { /* 16APSK and 32APSK */
2782                 if (state->srate <= 3000000)
2783                         aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2784                 else if (state->srate <= 7000000)
2785                         aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2786                 else if (state->srate <= 15000000)
2787                         aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2788                 else if (state->srate <= 25000000)
2789                         aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2790                 else
2791                         aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2792         }
2793
2794         return aclc;
2795 }
2796
2797 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2798 {
2799         struct stv090x_short_frame_crloop *short_crl = NULL;
2800         s32 index = 0;
2801         u8 aclc = 0x0b;
2802
2803         switch (state->modulation) {
2804         case STV090x_QPSK:
2805         default:
2806                 index = 0;
2807                 break;
2808         case STV090x_8PSK:
2809                 index = 1;
2810                 break;
2811         case STV090x_16APSK:
2812                 index = 2;
2813                 break;
2814         case STV090x_32APSK:
2815                 index = 3;
2816                 break;
2817         }
2818
2819         if (state->internal->dev_ver >= 0x30) {
2820                 /* Cut 3.0 and up */
2821                 short_crl = stv090x_s2_short_crl_cut30;
2822         } else {
2823                 /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2824                 short_crl = stv090x_s2_short_crl_cut20;
2825         }
2826
2827         if (state->srate <= 3000000)
2828                 aclc = short_crl[index].crl_2;
2829         else if (state->srate <= 7000000)
2830                 aclc = short_crl[index].crl_5;
2831         else if (state->srate <= 15000000)
2832                 aclc = short_crl[index].crl_10;
2833         else if (state->srate <= 25000000)
2834                 aclc = short_crl[index].crl_20;
2835         else
2836                 aclc = short_crl[index].crl_30;
2837
2838         return aclc;
2839 }
2840
2841 static int stv090x_optimize_track(struct stv090x_state *state)
2842 {
2843         struct dvb_frontend *fe = &state->frontend;
2844
2845         enum stv090x_rolloff rolloff;
2846         enum stv090x_modcod modcod;
2847
2848         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2849         u32 reg;
2850
2851         srate  = stv090x_get_srate(state, state->internal->mclk);
2852         srate += stv090x_get_tmgoffst(state, srate);
2853
2854         switch (state->delsys) {
2855         case STV090x_DVBS1:
2856         case STV090x_DSS:
2857                 if (state->search_mode == STV090x_SEARCH_AUTO) {
2858                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2859                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2860                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2861                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2862                                 goto err;
2863                 }
2864                 reg = STV090x_READ_DEMOD(state, DEMOD);
2865                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2866                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2867                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2868                         goto err;
2869
2870                 if (state->internal->dev_ver >= 0x30) {
2871                         if (stv090x_get_viterbi(state) < 0)
2872                                 goto err;
2873
2874                         if (state->fec == STV090x_PR12) {
2875                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2876                                         goto err;
2877                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2878                                         goto err;
2879                         } else {
2880                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2881                                         goto err;
2882                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2883                                         goto err;
2884                         }
2885                 }
2886
2887                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2888                         goto err;
2889                 break;
2890
2891         case STV090x_DVBS2:
2892                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2893                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2894                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2895                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2896                         goto err;
2897                 if (state->internal->dev_ver >= 0x30) {
2898                         if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2899                                 goto err;
2900                         if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2901                                 goto err;
2902                 }
2903                 if (state->frame_len == STV090x_LONG_FRAME) {
2904                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2905                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2906                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2907                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2908                         if (modcod <= STV090x_QPSK_910) {
2909                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2910                         } else if (modcod <= STV090x_8PSK_910) {
2911                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2912                                         goto err;
2913                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2914                                         goto err;
2915                         }
2916                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2917                                 if (modcod <= STV090x_16APSK_910) {
2918                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2919                                                 goto err;
2920                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2921                                                 goto err;
2922                                 } else {
2923                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2924                                                 goto err;
2925                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2926                                                 goto err;
2927                                 }
2928                         }
2929                 } else {
2930                         /*Carrier loop setting for short frame*/
2931                         aclc = stv090x_optimize_carloop_short(state);
2932                         if (state->modulation == STV090x_QPSK) {
2933                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2934                                         goto err;
2935                         } else if (state->modulation == STV090x_8PSK) {
2936                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2937                                         goto err;
2938                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2939                                         goto err;
2940                         } else if (state->modulation == STV090x_16APSK) {
2941                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2942                                         goto err;
2943                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2944                                         goto err;
2945                         } else if (state->modulation == STV090x_32APSK)  {
2946                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2947                                         goto err;
2948                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2949                                         goto err;
2950                         }
2951                 }
2952
2953                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2954                 break;
2955
2956         case STV090x_ERROR:
2957         default:
2958                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2959                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2960                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2961                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2962                         goto err;
2963                 break;
2964         }
2965
2966         f_1 = STV090x_READ_DEMOD(state, CFR2);
2967         f_0 = STV090x_READ_DEMOD(state, CFR1);
2968         reg = STV090x_READ_DEMOD(state, TMGOBS);
2969         rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2970
2971         if (state->algo == STV090x_BLIND_SEARCH) {
2972                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2973                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2974                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2975                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2976                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2977                         goto err;
2978                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2979                         goto err;
2980
2981                 if (stv090x_set_srate(state, srate) < 0)
2982                         goto err;
2983                 blind_tune = 1;
2984
2985                 if (stv090x_dvbs_track_crl(state) < 0)
2986                         goto err;
2987         }
2988
2989         if (state->internal->dev_ver >= 0x20) {
2990                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2991                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2992                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2993
2994                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2995                                 goto err;
2996                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2997                                 goto err;
2998                 }
2999         }
3000
3001         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3002                 goto err;
3003
3004         /* AUTO tracking MODE */
3005         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
3006                 goto err;
3007         /* AUTO tracking MODE */
3008         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3009                 goto err;
3010
3011         if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3012             (state->srate < 10000000)) {
3013                 /* update initial carrier freq with the found freq offset */
3014                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3015                         goto err;
3016                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3017                         goto err;
3018                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3019
3020                 if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3021
3022                         if (state->algo != STV090x_WARM_SEARCH) {
3023
3024                                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3025                                         goto err;
3026
3027                                 if (state->config->tuner_set_bandwidth) {
3028                                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3029                                                 goto err_gateoff;
3030                                 }
3031
3032                                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3033                                         goto err;
3034
3035                         }
3036                 }
3037                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3038                         msleep(50); /* blind search: wait 50ms for SR stabilization */
3039                 else
3040                         msleep(5);
3041
3042                 stv090x_get_lock_tmg(state);
3043
3044                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3045                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3046                                 goto err;
3047                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3048                                 goto err;
3049                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3050                                 goto err;
3051                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3052                                 goto err;
3053
3054                         i = 0;
3055
3056                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3057
3058                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3059                                         goto err;
3060                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3061                                         goto err;
3062                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3063                                         goto err;
3064                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3065                                         goto err;
3066                                 i++;
3067                         }
3068                 }
3069
3070         }
3071
3072         if (state->internal->dev_ver >= 0x20) {
3073                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3074                         goto err;
3075         }
3076
3077         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3078                 stv090x_set_vit_thtracq(state);
3079
3080         return 0;
3081
3082 err_gateoff:
3083         stv090x_i2c_gate_ctrl(state, 0);
3084 err:
3085         dprintk(FE_ERROR, 1, "I/O error");
3086         return -1;
3087 }
3088
3089 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3090 {
3091         s32 timer = 0, lock = 0, stat;
3092         u32 reg;
3093
3094         while ((timer < timeout) && (!lock)) {
3095                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
3096                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3097
3098                 switch (stat) {
3099                 case 0: /* searching */
3100                 case 1: /* first PLH detected */
3101                 default:
3102                         lock = 0;
3103                         break;
3104
3105                 case 2: /* DVB-S2 mode */
3106                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3107                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3108                         break;
3109
3110                 case 3: /* DVB-S1/legacy mode */
3111                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3112                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3113                         break;
3114                 }
3115                 if (!lock) {
3116                         msleep(10);
3117                         timer += 10;
3118                 }
3119         }
3120         return lock;
3121 }
3122
3123 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3124 {
3125         u32 reg;
3126         s32 timer = 0;
3127         int lock;
3128
3129         lock = stv090x_get_dmdlock(state, timeout_dmd);
3130         if (lock)
3131                 lock = stv090x_get_feclock(state, timeout_fec);
3132
3133         if (lock) {
3134                 lock = 0;
3135
3136                 while ((timer < timeout_fec) && (!lock)) {
3137                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3138                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3139                         msleep(1);
3140                         timer++;
3141                 }
3142         }
3143
3144         return lock;
3145 }
3146
3147 static int stv090x_set_s2rolloff(struct stv090x_state *state)
3148 {
3149         u32 reg;
3150
3151         if (state->internal->dev_ver <= 0x20) {
3152                 /* rolloff to auto mode if DVBS2 */
3153                 reg = STV090x_READ_DEMOD(state, DEMOD);
3154                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3155                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3156                         goto err;
3157         } else {
3158                 /* DVB-S2 rolloff to auto mode if DVBS2 */
3159                 reg = STV090x_READ_DEMOD(state, DEMOD);
3160                 STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3161                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3162                         goto err;
3163         }
3164         return 0;
3165 err:
3166         dprintk(FE_ERROR, 1, "I/O error");
3167         return -1;
3168 }
3169
3170
3171 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3172 {
3173         struct dvb_frontend *fe = &state->frontend;
3174         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3175         u32 reg;
3176         s32 agc1_power, power_iq = 0, i;
3177         int lock = 0, low_sr = 0, no_signal = 0;
3178
3179         reg = STV090x_READ_DEMOD(state, TSCFGH);
3180         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3181         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3182                 goto err;
3183
3184         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3185                 goto err;
3186
3187         if (state->internal->dev_ver >= 0x20) {
3188                 if (state->srate > 5000000) {
3189                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3190                                 goto err;
3191                 } else {
3192                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3193                                 goto err;
3194                 }
3195         }
3196
3197         stv090x_get_lock_tmg(state);
3198
3199         if (state->algo == STV090x_BLIND_SEARCH) {
3200                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3201                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3202                         goto err;
3203                 if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3204                         goto err;
3205                 if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3206                         goto err;
3207         } else {
3208                 /* known srate */
3209                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3210                         goto err;
3211                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3212                         goto err;
3213
3214                 if (state->srate < 2000000) {
3215                         /* SR < 2MSPS */
3216                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3217                                 goto err;
3218                 } else {
3219                         /* SR >= 2Msps */
3220                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3221                                 goto err;
3222                 }
3223
3224                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3225                         goto err;
3226
3227                 if (state->internal->dev_ver >= 0x20) {
3228                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3229                                 goto err;
3230                         if (state->algo == STV090x_COLD_SEARCH)
3231                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3232                         else if (state->algo == STV090x_WARM_SEARCH)
3233                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3234                 }
3235
3236                 /* if cold start or warm  (Symbolrate is known)
3237                  * use a Narrow symbol rate scan range
3238                  */
3239                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3240                         goto err;
3241
3242                 if (stv090x_set_srate(state, state->srate) < 0)
3243                         goto err;
3244
3245                 if (stv090x_set_max_srate(state, state->internal->mclk,
3246                                           state->srate) < 0)
3247                         goto err;
3248                 if (stv090x_set_min_srate(state, state->internal->mclk,
3249                                           state->srate) < 0)
3250                         goto err;
3251
3252                 if (state->srate >= 10000000)
3253                         low_sr = 0;
3254                 else
3255                         low_sr = 1;
3256         }
3257
3258         /* Setup tuner */
3259         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3260                 goto err;
3261
3262         if (state->config->tuner_set_bbgain) {
3263                 reg = state->config->tuner_bbgain;
3264                 if (reg == 0)
3265                         reg = 10; /* default: 10dB */
3266                 if (state->config->tuner_set_bbgain(fe, reg) < 0)
3267                         goto err_gateoff;
3268         }
3269
3270         if (state->config->tuner_set_frequency) {
3271                 if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3272                         goto err_gateoff;
3273         }
3274
3275         if (state->config->tuner_set_bandwidth) {
3276                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3277                         goto err_gateoff;
3278         }
3279
3280         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3281                 goto err;
3282
3283         msleep(50);
3284
3285         if (state->config->tuner_get_status) {
3286                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3287                         goto err;
3288                 if (state->config->tuner_get_status(fe, &reg) < 0)
3289                         goto err_gateoff;
3290                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3291                         goto err;
3292
3293                 if (reg)
3294                         dprintk(FE_DEBUG, 1, "Tuner phase locked");
3295                 else {
3296                         dprintk(FE_DEBUG, 1, "Tuner unlocked");
3297                         return STV090x_NOCARRIER;
3298                 }
3299         }
3300
3301         msleep(10);
3302         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3303                                 STV090x_READ_DEMOD(state, AGCIQIN0));
3304
3305         if (agc1_power == 0) {
3306                 /* If AGC1 integrator value is 0
3307                  * then read POWERI, POWERQ
3308                  */
3309                 for (i = 0; i < 5; i++) {
3310                         power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3311                                      STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3312                 }
3313                 power_iq /= 5;
3314         }
3315
3316         if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3317                 dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3318                 lock = 0;
3319                 signal_state = STV090x_NOAGC1;
3320         } else {
3321                 reg = STV090x_READ_DEMOD(state, DEMOD);
3322                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3323
3324                 if (state->internal->dev_ver <= 0x20) {
3325                         /* rolloff to auto mode if DVBS2 */
3326                         STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3327                 } else {
3328                         /* DVB-S2 rolloff to auto mode if DVBS2 */
3329                         STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3330                 }
3331                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3332                         goto err;
3333
3334                 if (stv090x_delivery_search(state) < 0)
3335                         goto err;
3336
3337                 if (state->algo != STV090x_BLIND_SEARCH) {
3338                         if (stv090x_start_search(state) < 0)
3339                                 goto err;
3340                 }
3341         }
3342
3343         if (signal_state == STV090x_NOAGC1)
3344                 return signal_state;
3345
3346         if (state->algo == STV090x_BLIND_SEARCH)
3347                 lock = stv090x_blind_search(state);
3348
3349         else if (state->algo == STV090x_COLD_SEARCH)
3350                 lock = stv090x_get_coldlock(state, state->DemodTimeout);
3351
3352         else if (state->algo == STV090x_WARM_SEARCH)
3353                 lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3354
3355         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3356                 if (!low_sr) {
3357                         if (stv090x_chk_tmg(state))
3358                                 lock = stv090x_sw_algo(state);
3359                 }
3360         }
3361
3362         if (lock)
3363                 signal_state = stv090x_get_sig_params(state);
3364
3365         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3366                 stv090x_optimize_track(state);
3367
3368                 if (state->internal->dev_ver >= 0x20) {
3369                         /* >= Cut 2.0 :release TS reset after
3370                          * demod lock and optimized Tracking
3371                          */
3372                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3373                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3374                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3375                                 goto err;
3376
3377                         msleep(3);
3378
3379                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3380                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3381                                 goto err;
3382
3383                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3384                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3385                                 goto err;
3386                 }
3387
3388                 lock = stv090x_get_lock(state, state->FecTimeout,
3389                                 state->FecTimeout);
3390                 if (lock) {
3391                         if (state->delsys == STV090x_DVBS2) {
3392                                 stv090x_set_s2rolloff(state);
3393
3394                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3395                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3396                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3397                                         goto err;
3398                                 /* Reset DVBS2 packet delinator error counter */
3399                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3400                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3401                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3402                                         goto err;
3403
3404                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3405                                         goto err;
3406                         } else {
3407                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3408                                         goto err;
3409                         }
3410                         /* Reset the Total packet counter */
3411                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3412                                 goto err;
3413                         /* Reset the packet Error counter2 */
3414                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3415                                 goto err;
3416                 } else {
3417                         signal_state = STV090x_NODATA;
3418                         no_signal = stv090x_chk_signal(state);
3419                 }
3420         }
3421         return signal_state;
3422
3423 err_gateoff:
3424         stv090x_i2c_gate_ctrl(state, 0);
3425 err:
3426         dprintk(FE_ERROR, 1, "I/O error");
3427         return -1;
3428 }
3429
3430 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)
3431 {
3432         struct stv090x_state *state = fe->demodulator_priv;
3433         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3434
3435         if (p->frequency == 0)
3436                 return DVBFE_ALGO_SEARCH_INVALID;
3437
3438         state->delsys = props->delivery_system;
3439         state->frequency = p->frequency;
3440         state->srate = p->u.qpsk.symbol_rate;
3441         state->search_mode = STV090x_SEARCH_AUTO;
3442         state->algo = STV090x_COLD_SEARCH;
3443         state->fec = STV090x_PRERR;
3444         if (state->srate > 10000000) {
3445                 dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3446                 state->search_range = 10000000;
3447         } else {
3448                 dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3449                 state->search_range = 5000000;
3450         }
3451
3452         if (stv090x_algo(state) == STV090x_RANGEOK) {
3453                 dprintk(FE_DEBUG, 1, "Search success!");
3454                 return DVBFE_ALGO_SEARCH_SUCCESS;
3455         } else {
3456                 dprintk(FE_DEBUG, 1, "Search failed!");
3457                 return DVBFE_ALGO_SEARCH_FAILED;
3458         }
3459
3460         return DVBFE_ALGO_SEARCH_ERROR;
3461 }
3462
3463 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3464 {
3465         struct stv090x_state *state = fe->demodulator_priv;
3466         u32 reg;
3467         u8 search_state;
3468
3469         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3470         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3471
3472         switch (search_state) {
3473         case 0: /* searching */
3474         case 1: /* first PLH detected */
3475         default:
3476                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3477                 *status = 0;
3478                 break;
3479
3480         case 2: /* DVB-S2 mode */
3481                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3482                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3483                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3484                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3485                         if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3486                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3487                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3488                                         *status = FE_HAS_SIGNAL |
3489                                                   FE_HAS_CARRIER |
3490                                                   FE_HAS_VITERBI |
3491                                                   FE_HAS_SYNC |
3492                                                   FE_HAS_LOCK;
3493                                 }
3494                         }
3495                 }
3496                 break;
3497
3498         case 3: /* DVB-S1/legacy mode */
3499                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3500                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3501                 if (STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD)) {
3502                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3503                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3504                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3505                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD)) {
3506                                         *status = FE_HAS_SIGNAL |
3507                                                   FE_HAS_CARRIER |
3508                                                   FE_HAS_VITERBI |
3509                                                   FE_HAS_SYNC |
3510                                                   FE_HAS_LOCK;
3511                                 }
3512                         }
3513                 }
3514                 break;
3515         }
3516
3517         return 0;
3518 }
3519
3520 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3521 {
3522         struct stv090x_state *state = fe->demodulator_priv;
3523
3524         s32 count_4, count_3, count_2, count_1, count_0, count;
3525         u32 reg, h, m, l;
3526         enum fe_status status;
3527
3528         stv090x_read_status(fe, &status);
3529         if (!(status & FE_HAS_LOCK)) {
3530                 *per = 1 << 23; /* Max PER */
3531         } else {
3532                 /* Counter 2 */
3533                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3534                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3535
3536                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3537                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3538
3539                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3540                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3541
3542                 *per = ((h << 16) | (m << 8) | l);
3543
3544                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3545                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3546                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3547                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3548                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3549
3550                 if ((!count_4) && (!count_3)) {
3551                         count  = (count_2 & 0xff) << 16;
3552                         count |= (count_1 & 0xff) <<  8;
3553                         count |=  count_0 & 0xff;
3554                 } else {
3555                         count = 1 << 24;
3556                 }
3557                 if (count == 0)
3558                         *per = 1;
3559         }
3560         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3561                 goto err;
3562         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3563                 goto err;
3564
3565         return 0;
3566 err:
3567         dprintk(FE_ERROR, 1, "I/O error");
3568         return -1;
3569 }
3570
3571 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3572 {
3573         int res = 0;
3574         int min = 0, med;
3575
3576         if ((val >= tab[min].read && val < tab[max].read) ||
3577             (val >= tab[max].read && val < tab[min].read)) {
3578                 while ((max - min) > 1) {
3579                         med = (max + min) / 2;
3580                         if ((val >= tab[min].read && val < tab[med].read) ||
3581                             (val >= tab[med].read && val < tab[min].read))
3582                                 max = med;
3583                         else
3584                                 min = med;
3585                 }
3586                 res = ((val - tab[min].read) *
3587                        (tab[max].real - tab[min].real) /
3588                        (tab[max].read - tab[min].read)) +
3589                         tab[min].real;
3590         } else {
3591                 if (tab[min].read < tab[max].read) {
3592                         if (val < tab[min].read)
3593                                 res = tab[min].real;
3594                         else if (val >= tab[max].read)
3595                                 res = tab[max].real;
3596                 } else {
3597                         if (val >= tab[min].read)
3598                                 res = tab[min].real;
3599                         else if (val < tab[max].read)
3600                                 res = tab[max].real;
3601                 }
3602         }
3603
3604         return res;
3605 }
3606
3607 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3608 {
3609         struct stv090x_state *state = fe->demodulator_priv;
3610         u32 reg;
3611         s32 agc_0, agc_1, agc;
3612         s32 str;
3613
3614         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3615         agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3616         reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3617         agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3618         agc = MAKEWORD16(agc_1, agc_0);
3619
3620         str = stv090x_table_lookup(stv090x_rf_tab,
3621                 ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3622         if (agc > stv090x_rf_tab[0].read)
3623                 str = 0;
3624         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3625                 str = -100;
3626         *strength = (str + 100) * 0xFFFF / 100;
3627
3628         return 0;
3629 }
3630
3631 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3632 {
3633         struct stv090x_state *state = fe->demodulator_priv;
3634         u32 reg_0, reg_1, reg, i;
3635         s32 val_0, val_1, val = 0;
3636         u8 lock_f;
3637         s32 div;
3638         u32 last;
3639
3640         switch (state->delsys) {
3641         case STV090x_DVBS2:
3642                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3643                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3644                 if (lock_f) {
3645                         msleep(5);
3646                         for (i = 0; i < 16; i++) {
3647                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3648                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3649                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3650                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3651                                 val  += MAKEWORD16(val_1, val_0);
3652                                 msleep(1);
3653                         }
3654                         val /= 16;
3655                         last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3656                         div = stv090x_s2cn_tab[0].read -
3657                               stv090x_s2cn_tab[last].read;
3658                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3659                 }
3660                 break;
3661
3662         case STV090x_DVBS1:
3663         case STV090x_DSS:
3664                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3665                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3666                 if (lock_f) {
3667                         msleep(5);
3668                         for (i = 0; i < 16; i++) {
3669                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3670                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3671                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3672                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3673                                 val  += MAKEWORD16(val_1, val_0);
3674                                 msleep(1);
3675                         }
3676                         val /= 16;
3677                         last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3678                         div = stv090x_s1cn_tab[0].read -
3679                               stv090x_s1cn_tab[last].read;
3680                         *cnr = 0xFFFF - ((val * 0xFFFF) / div);
3681                 }
3682                 break;
3683         default:
3684                 break;
3685         }
3686
3687         return 0;
3688 }
3689
3690 static int stv090x_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
3691 {
3692         struct stv090x_state *state = fe->demodulator_priv;
3693         u32 reg;
3694
3695         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3696         switch (tone) {
3697         case SEC_TONE_ON:
3698                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3699                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3700                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3701                         goto err;
3702                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3703                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3704                         goto err;
3705                 break;
3706
3707         case SEC_TONE_OFF:
3708                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3709                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3710                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3711                         goto err;
3712                 break;
3713         default:
3714                 return -EINVAL;
3715         }
3716
3717         return 0;
3718 err:
3719         dprintk(FE_ERROR, 1, "I/O error");
3720         return -1;
3721 }
3722
3723
3724 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3725 {
3726         return DVBFE_ALGO_CUSTOM;
3727 }
3728
3729 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3730 {
3731         struct stv090x_state *state = fe->demodulator_priv;
3732         u32 reg, idle = 0, fifo_full = 1;
3733         int i;
3734
3735         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3736
3737         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3738                 (state->config->diseqc_envelope_mode) ? 4 : 2);
3739         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3740         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3741                 goto err;
3742         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3743         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3744                 goto err;
3745
3746         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3747         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3748                 goto err;
3749
3750         for (i = 0; i < cmd->msg_len; i++) {
3751
3752                 while (fifo_full) {
3753                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3754                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3755                 }
3756
3757                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3758                         goto err;
3759         }
3760         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3761         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3762         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3763                 goto err;
3764
3765         i = 0;
3766
3767         while ((!idle) && (i < 10)) {
3768                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3769                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3770                 msleep(10);
3771                 i++;
3772         }
3773
3774         return 0;
3775 err:
3776         dprintk(FE_ERROR, 1, "I/O error");
3777         return -1;
3778 }
3779
3780 static int stv090x_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
3781 {
3782         struct stv090x_state *state = fe->demodulator_priv;
3783         u32 reg, idle = 0, fifo_full = 1;
3784         u8 mode, value;
3785         int i;
3786
3787         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3788
3789         if (burst == SEC_MINI_A) {
3790                 mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3791                 value = 0x00;
3792         } else {
3793                 mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3794                 value = 0xFF;
3795         }
3796
3797         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3798         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3799         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3800                 goto err;
3801         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3802         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3803                 goto err;
3804
3805         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3806         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3807                 goto err;
3808
3809         while (fifo_full) {
3810                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3811                 fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3812         }
3813
3814         if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3815                 goto err;
3816
3817         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3818         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3819         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3820                 goto err;
3821
3822         i = 0;
3823
3824         while ((!idle) && (i < 10)) {
3825                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3826                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3827                 msleep(10);
3828                 i++;
3829         }
3830
3831         return 0;
3832 err:
3833         dprintk(FE_ERROR, 1, "I/O error");
3834         return -1;
3835 }
3836
3837 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3838 {
3839         struct stv090x_state *state = fe->demodulator_priv;
3840         u32 reg = 0, i = 0, rx_end = 0;
3841
3842         while ((rx_end != 1) && (i < 10)) {
3843                 msleep(10);
3844                 i++;
3845                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3846                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3847         }
3848
3849         if (rx_end) {
3850                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3851                 for (i = 0; i < reply->msg_len; i++)
3852                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3853         }
3854
3855         return 0;
3856 }
3857
3858 static int stv090x_sleep(struct dvb_frontend *fe)
3859 {
3860         struct stv090x_state *state = fe->demodulator_priv;
3861         u32 reg;
3862         u8 full_standby = 0;
3863
3864         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3865                 goto err;
3866
3867         if (state->config->tuner_sleep) {
3868                 if (state->config->tuner_sleep(fe) < 0)
3869                         goto err_gateoff;
3870         }
3871
3872         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3873                 goto err;
3874
3875         dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3876                 state->device == STV0900 ? "STV0900" : "STV0903",
3877                 state->demod);
3878
3879         mutex_lock(&state->internal->demod_lock);
3880
3881         switch (state->demod) {
3882         case STV090x_DEMODULATOR_0:
3883                 /* power off ADC 1 */
3884                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3885                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3886                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3887                         goto err;
3888                 /* power off DiSEqC 1 */
3889                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3890                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3891                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3892                         goto err;
3893
3894                 /* check whether path 2 is already sleeping, that is when
3895                    ADC2 is off */
3896                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3897                 if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3898                         full_standby = 1;
3899
3900                 /* stop clocks */
3901                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3902                 /* packet delineator 1 clock */
3903                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3904                 /* ADC 1 clock */
3905                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3906                 /* FEC clock is shared between the two paths, only stop it
3907                    when full standby is possible */
3908                 if (full_standby)
3909                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3910                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3911                         goto err;
3912                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3913                 /* sampling 1 clock */
3914                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3915                 /* viterbi 1 clock */
3916                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3917                 /* TS clock is shared between the two paths, only stop it
3918                    when full standby is possible */
3919                 if (full_standby)
3920                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3921                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3922                         goto err;
3923                 break;
3924
3925         case STV090x_DEMODULATOR_1:
3926                 /* power off ADC 2 */
3927                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3928                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3929                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3930                         goto err;
3931                 /* power off DiSEqC 2 */
3932                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3933                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3934                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3935                         goto err;
3936
3937                 /* check whether path 1 is already sleeping, that is when
3938                    ADC1 is off */
3939                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3940                 if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
3941                         full_standby = 1;
3942
3943                 /* stop clocks */
3944                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3945                 /* packet delineator 2 clock */
3946                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
3947                 /* ADC 2 clock */
3948                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
3949                 /* FEC clock is shared between the two paths, only stop it
3950                    when full standby is possible */
3951                 if (full_standby)
3952                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3953                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3954                         goto err;
3955                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3956                 /* sampling 2 clock */
3957                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
3958                 /* viterbi 2 clock */
3959                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
3960                 /* TS clock is shared between the two paths, only stop it
3961                    when full standby is possible */
3962                 if (full_standby)
3963                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3964                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3965                         goto err;
3966                 break;
3967
3968         default:
3969                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
3970                 break;
3971         }
3972
3973         if (full_standby) {
3974                 /* general power off */
3975                 reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
3976                 STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
3977                 if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
3978                         goto err;
3979         }
3980
3981         mutex_unlock(&state->internal->demod_lock);
3982         return 0;
3983
3984 err_gateoff:
3985         stv090x_i2c_gate_ctrl(state, 0);
3986 err:
3987         mutex_unlock(&state->internal->demod_lock);
3988         dprintk(FE_ERROR, 1, "I/O error");
3989         return -1;
3990 }
3991
3992 static int stv090x_wakeup(struct dvb_frontend *fe)
3993 {
3994         struct stv090x_state *state = fe->demodulator_priv;
3995         u32 reg;
3996
3997         dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
3998                 state->device == STV0900 ? "STV0900" : "STV0903",
3999                 state->demod);
4000
4001         mutex_lock(&state->internal->demod_lock);
4002
4003         /* general power on */
4004         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4005         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4006         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4007                 goto err;
4008
4009         switch (state->demod) {
4010         case STV090x_DEMODULATOR_0:
4011                 /* power on ADC 1 */
4012                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4013                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4014                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4015                         goto err;
4016                 /* power on DiSEqC 1 */
4017                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4018                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4019                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4020                         goto err;
4021
4022                 /* activate clocks */
4023                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4024                 /* packet delineator 1 clock */
4025                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4026                 /* ADC 1 clock */
4027                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4028                 /* FEC clock */
4029                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4030                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4031                         goto err;
4032                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4033                 /* sampling 1 clock */
4034                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4035                 /* viterbi 1 clock */
4036                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4037                 /* TS clock */
4038                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4039                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4040                         goto err;
4041                 break;
4042
4043         case STV090x_DEMODULATOR_1:
4044                 /* power on ADC 2 */
4045                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4046                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4047                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4048                         goto err;
4049                 /* power on DiSEqC 2 */
4050                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4051                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4052                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4053                         goto err;
4054
4055                 /* activate clocks */
4056                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4057                 /* packet delineator 2 clock */
4058                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4059                 /* ADC 2 clock */
4060                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4061                 /* FEC clock */
4062                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4063                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4064                         goto err;
4065                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4066                 /* sampling 2 clock */
4067                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4068                 /* viterbi 2 clock */
4069                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4070                 /* TS clock */
4071                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4072                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4073                         goto err;
4074                 break;
4075
4076         default:
4077                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
4078                 break;
4079         }
4080
4081         mutex_unlock(&state->internal->demod_lock);
4082         return 0;
4083 err:
4084         mutex_unlock(&state->internal->demod_lock);
4085         dprintk(FE_ERROR, 1, "I/O error");
4086         return -1;
4087 }
4088
4089 static void stv090x_release(struct dvb_frontend *fe)
4090 {
4091         struct stv090x_state *state = fe->demodulator_priv;
4092
4093         state->internal->num_used--;
4094         if (state->internal->num_used <= 0) {
4095
4096                 dprintk(FE_ERROR, 1, "Actually removing");
4097
4098                 remove_dev(state->internal);
4099                 kfree(state->internal);
4100         }
4101
4102         kfree(state);
4103 }
4104
4105 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4106 {
4107         u32 reg = 0;
4108
4109         reg = stv090x_read_reg(state, STV090x_GENCFG);
4110
4111         switch (ldpc_mode) {
4112         case STV090x_DUAL:
4113         default:
4114                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4115                         /* set LDPC to dual mode */
4116                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4117                                 goto err;
4118
4119                         state->demod_mode = STV090x_DUAL;
4120
4121                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
4122                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4123                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4124                                 goto err;
4125                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4126                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4127                                 goto err;
4128
4129                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4130                                 goto err;
4131                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4132                                 goto err;
4133                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4134                                 goto err;
4135                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4136                                 goto err;
4137                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4138                                 goto err;
4139                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4140                                 goto err;
4141                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4142                                 goto err;
4143
4144                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4145                                 goto err;
4146                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4147                                 goto err;
4148                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4149                                 goto err;
4150                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4151                                 goto err;
4152                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4153                                 goto err;
4154                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4155                                 goto err;
4156                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4157                                 goto err;
4158
4159                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4160                                 goto err;
4161                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4162                                 goto err;
4163                 }
4164                 break;
4165
4166         case STV090x_SINGLE:
4167                 if (stv090x_stop_modcod(state) < 0)
4168                         goto err;
4169                 if (stv090x_activate_modcod_single(state) < 0)
4170                         goto err;
4171
4172                 if (state->demod == STV090x_DEMODULATOR_1) {
4173                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4174                                 goto err;
4175                 } else {
4176                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4177                                 goto err;
4178                 }
4179
4180                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
4181                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4182                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4183                         goto err;
4184                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4185                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4186                         goto err;
4187
4188                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4189                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4190                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4191                         goto err;
4192                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4193                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4194                         goto err;
4195                 break;
4196         }
4197
4198         return 0;
4199 err:
4200         dprintk(FE_ERROR, 1, "I/O error");
4201         return -1;
4202 }
4203
4204 /* return (Hz), clk in Hz*/
4205 static u32 stv090x_get_mclk(struct stv090x_state *state)
4206 {
4207         const struct stv090x_config *config = state->config;
4208         u32 div, reg;
4209         u8 ratio;
4210
4211         div = stv090x_read_reg(state, STV090x_NCOARSE);
4212         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4213         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4214
4215         return (div + 1) * config->xtal / ratio; /* kHz */
4216 }
4217
4218 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4219 {
4220         const struct stv090x_config *config = state->config;
4221         u32 reg, div, clk_sel;
4222
4223         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4224         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4225
4226         div = ((clk_sel * mclk) / config->xtal) - 1;
4227
4228         reg = stv090x_read_reg(state, STV090x_NCOARSE);
4229         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4230         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4231                 goto err;
4232
4233         state->internal->mclk = stv090x_get_mclk(state);
4234
4235         /*Set the DiseqC frequency to 22KHz */
4236         div = state->internal->mclk / 704000;
4237         if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4238                 goto err;
4239         if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4240                 goto err;
4241
4242         return 0;
4243 err:
4244         dprintk(FE_ERROR, 1, "I/O error");
4245         return -1;
4246 }
4247
4248 static int stv090x_set_tspath(struct stv090x_state *state)
4249 {
4250         u32 reg;
4251
4252         if (state->internal->dev_ver >= 0x20) {
4253                 switch (state->config->ts1_mode) {
4254                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4255                 case STV090x_TSMODE_DVBCI:
4256                         switch (state->config->ts2_mode) {
4257                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4258                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4259                         default:
4260                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4261                                 break;
4262
4263                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4264                         case STV090x_TSMODE_DVBCI:
4265                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4266                                         goto err;
4267                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4268                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4269                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4270                                         goto err;
4271                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4272                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4273                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4274                                         goto err;
4275                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4276                                         goto err;
4277                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4278                                         goto err;
4279                                 break;
4280                         }
4281                         break;
4282
4283                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4284                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4285                 default:
4286                         switch (state->config->ts2_mode) {
4287                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4288                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4289                         default:
4290                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4291                                         goto err;
4292                                 break;
4293
4294                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4295                         case STV090x_TSMODE_DVBCI:
4296                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4297                                         goto err;
4298                                 break;
4299                         }
4300                         break;
4301                 }
4302         } else {
4303                 switch (state->config->ts1_mode) {
4304                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4305                 case STV090x_TSMODE_DVBCI:
4306                         switch (state->config->ts2_mode) {
4307                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4308                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4309                         default:
4310                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4311                                 break;
4312
4313                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4314                         case STV090x_TSMODE_DVBCI:
4315                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4316                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4317                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4318                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4319                                         goto err;
4320                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4321                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4322                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4323                                         goto err;
4324                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4325                                         goto err;
4326                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4327                                         goto err;
4328                                 break;
4329                         }
4330                         break;
4331
4332                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4333                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4334                 default:
4335                         switch (state->config->ts2_mode) {
4336                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4337                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4338                         default:
4339                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4340                                 break;
4341
4342                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4343                         case STV090x_TSMODE_DVBCI:
4344                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4345                                 break;
4346                         }
4347                         break;
4348                 }
4349         }
4350
4351         switch (state->config->ts1_mode) {
4352         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4353                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4354                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4355                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4356                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4357                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4358                         goto err;
4359                 break;
4360
4361         case STV090x_TSMODE_DVBCI:
4362                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4363                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4364                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4365                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4366                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4367                         goto err;
4368                 break;
4369
4370         case STV090x_TSMODE_SERIAL_PUNCTURED:
4371                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4372                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4373                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4374                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4375                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4376                         goto err;
4377                 break;
4378
4379         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4380                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4381                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4382                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4383                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4384                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4385                         goto err;
4386                 break;
4387
4388         default:
4389                 break;
4390         }
4391
4392         switch (state->config->ts2_mode) {
4393         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4394                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4395                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4396                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4397                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4398                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4399                         goto err;
4400                 break;
4401
4402         case STV090x_TSMODE_DVBCI:
4403                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4404                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4405                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4406                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4407                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4408                         goto err;
4409                 break;
4410
4411         case STV090x_TSMODE_SERIAL_PUNCTURED:
4412                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4413                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4414                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4415                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4416                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4417                         goto err;
4418                 break;
4419
4420         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4421                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4422                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4423                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4424                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4425                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4426                         goto err;
4427                 break;
4428
4429         default:
4430                 break;
4431         }
4432
4433         if (state->config->ts1_clk > 0) {
4434                 u32 speed;
4435
4436                 switch (state->config->ts1_mode) {
4437                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4438                 case STV090x_TSMODE_DVBCI:
4439                 default:
4440                         speed = state->internal->mclk /
4441                                 (state->config->ts1_clk / 4);
4442                         if (speed < 0x08)
4443                                 speed = 0x08;
4444                         if (speed > 0xFF)
4445                                 speed = 0xFF;
4446                         break;
4447                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4448                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4449                         speed = state->internal->mclk /
4450                                 (state->config->ts1_clk / 32);
4451                         if (speed < 0x20)
4452                                 speed = 0x20;
4453                         if (speed > 0xFF)
4454                                 speed = 0xFF;
4455                         break;
4456                 }
4457                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4458                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4459                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4460                         goto err;
4461                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4462                         goto err;
4463         }
4464
4465         if (state->config->ts2_clk > 0) {
4466                 u32 speed;
4467
4468                 switch (state->config->ts2_mode) {
4469                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4470                 case STV090x_TSMODE_DVBCI:
4471                 default:
4472                         speed = state->internal->mclk /
4473                                 (state->config->ts2_clk / 4);
4474                         if (speed < 0x08)
4475                                 speed = 0x08;
4476                         if (speed > 0xFF)
4477                                 speed = 0xFF;
4478                         break;
4479                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4480                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4481                         speed = state->internal->mclk /
4482                                 (state->config->ts2_clk / 32);
4483                         if (speed < 0x20)
4484                                 speed = 0x20;
4485                         if (speed > 0xFF)
4486                                 speed = 0xFF;
4487                         break;
4488                 }
4489                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4490                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4491                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4492                         goto err;
4493                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4494                         goto err;
4495         }
4496
4497         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4498         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4499         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4500                 goto err;
4501         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4502         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4503                 goto err;
4504
4505         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4506         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4507         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4508                 goto err;
4509         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4510         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4511                 goto err;
4512
4513         return 0;
4514 err:
4515         dprintk(FE_ERROR, 1, "I/O error");
4516         return -1;
4517 }
4518
4519 static int stv090x_init(struct dvb_frontend *fe)
4520 {
4521         struct stv090x_state *state = fe->demodulator_priv;
4522         const struct stv090x_config *config = state->config;
4523         u32 reg;
4524
4525         if (state->internal->mclk == 0) {
4526                 /* call tuner init to configure the tuner's clock output
4527                    divider directly before setting up the master clock of
4528                    the stv090x. */
4529                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4530                         goto err;
4531
4532                 if (config->tuner_init) {
4533                         if (config->tuner_init(fe) < 0)
4534                                 goto err_gateoff;
4535                 }
4536
4537                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4538                         goto err;
4539
4540                 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4541                 msleep(5);
4542                 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4543                                       0x20 | config->clk_mode) < 0)
4544                         goto err;
4545                 stv090x_get_mclk(state);
4546         }
4547
4548         if (stv090x_wakeup(fe) < 0) {
4549                 dprintk(FE_ERROR, 1, "Error waking device");
4550                 goto err;
4551         }
4552
4553         if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4554                 goto err;
4555
4556         reg = STV090x_READ_DEMOD(state, TNRCFG2);
4557         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4558         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4559                 goto err;
4560         reg = STV090x_READ_DEMOD(state, DEMOD);
4561         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4562         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4563                 goto err;
4564
4565         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4566                 goto err;
4567
4568         if (config->tuner_set_mode) {
4569                 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4570                         goto err_gateoff;
4571         }
4572
4573         if (config->tuner_init) {
4574                 if (config->tuner_init(fe) < 0)
4575                         goto err_gateoff;
4576         }
4577
4578         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4579                 goto err;
4580
4581         if (stv090x_set_tspath(state) < 0)
4582                 goto err;
4583
4584         return 0;
4585
4586 err_gateoff:
4587         stv090x_i2c_gate_ctrl(state, 0);
4588 err:
4589         dprintk(FE_ERROR, 1, "I/O error");
4590         return -1;
4591 }
4592
4593 static int stv090x_setup(struct dvb_frontend *fe)
4594 {
4595         struct stv090x_state *state = fe->demodulator_priv;
4596         const struct stv090x_config *config = state->config;
4597         const struct stv090x_reg *stv090x_initval = NULL;
4598         const struct stv090x_reg *stv090x_cut20_val = NULL;
4599         unsigned long t1_size = 0, t2_size = 0;
4600         u32 reg = 0;
4601
4602         int i;
4603
4604         if (state->device == STV0900) {
4605                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
4606                 stv090x_initval = stv0900_initval;
4607                 t1_size = ARRAY_SIZE(stv0900_initval);
4608                 stv090x_cut20_val = stv0900_cut20_val;
4609                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
4610         } else if (state->device == STV0903) {
4611                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
4612                 stv090x_initval = stv0903_initval;
4613                 t1_size = ARRAY_SIZE(stv0903_initval);
4614                 stv090x_cut20_val = stv0903_cut20_val;
4615                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
4616         }
4617
4618         /* STV090x init */
4619
4620         /* Stop Demod */
4621         if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4622                 goto err;
4623         if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4624                 goto err;
4625
4626         msleep(5);
4627
4628         /* Set No Tuner Mode */
4629         if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4630                 goto err;
4631         if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4632                 goto err;
4633
4634         /* I2C repeater OFF */
4635         STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4636         if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4637                 goto err;
4638         if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4639                 goto err;
4640
4641         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4642                 goto err;
4643         msleep(5);
4644         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4645                 goto err;
4646         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4647                 goto err;
4648         msleep(5);
4649
4650         /* write initval */
4651         dprintk(FE_DEBUG, 1, "Setting up initial values");
4652         for (i = 0; i < t1_size; i++) {
4653                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4654                         goto err;
4655         }
4656
4657         state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4658         if (state->internal->dev_ver >= 0x20) {
4659                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4660                         goto err;
4661
4662                 /* write cut20_val*/
4663                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4664                 for (i = 0; i < t2_size; i++) {
4665                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4666                                 goto err;
4667                 }
4668
4669         } else if (state->internal->dev_ver < 0x20) {
4670                 dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4671                         state->internal->dev_ver);
4672
4673                 goto err;
4674         } else if (state->internal->dev_ver > 0x30) {
4675                 /* we shouldn't bail out from here */
4676                 dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4677                         state->internal->dev_ver);
4678         }
4679
4680         /* ADC1 range */
4681         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4682         STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4683                 (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4684         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4685                 goto err;
4686
4687         /* ADC2 range */
4688         reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4689         STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4690                 (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4691         if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4692                 goto err;
4693
4694         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4695                 goto err;
4696         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4697                 goto err;
4698
4699         return 0;
4700 err:
4701         dprintk(FE_ERROR, 1, "I/O error");
4702         return -1;
4703 }
4704
4705 int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir, u8 value,
4706                 u8 xor_value)
4707 {
4708         struct stv090x_state *state = fe->demodulator_priv;
4709         u8 reg = 0;
4710
4711         STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4712         STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4713         STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4714
4715         return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4716 }
4717 EXPORT_SYMBOL(stv090x_set_gpio);
4718
4719 static struct dvb_frontend_ops stv090x_ops = {
4720
4721         .info = {
4722                 .name                   = "STV090x Multistandard",
4723                 .type                   = FE_QPSK,
4724                 .frequency_min          = 950000,
4725                 .frequency_max          = 2150000,
4726                 .frequency_stepsize     = 0,
4727                 .frequency_tolerance    = 0,
4728                 .symbol_rate_min        = 1000000,
4729                 .symbol_rate_max        = 45000000,
4730                 .caps                   = FE_CAN_INVERSION_AUTO |
4731                                           FE_CAN_FEC_AUTO       |
4732                                           FE_CAN_QPSK           |
4733                                           FE_CAN_2G_MODULATION
4734         },
4735
4736         .release                        = stv090x_release,
4737         .init                           = stv090x_init,
4738
4739         .sleep                          = stv090x_sleep,
4740         .get_frontend_algo              = stv090x_frontend_algo,
4741
4742         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4743         .diseqc_send_burst              = stv090x_send_diseqc_burst,
4744         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4745         .set_tone                       = stv090x_set_tone,
4746
4747         .search                         = stv090x_search,
4748         .read_status                    = stv090x_read_status,
4749         .read_ber                       = stv090x_read_per,
4750         .read_signal_strength           = stv090x_read_signal_strength,
4751         .read_snr                       = stv090x_read_cnr
4752 };
4753
4754
4755 struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
4756                                     struct i2c_adapter *i2c,
4757                                     enum stv090x_demodulator demod)
4758 {
4759         struct stv090x_state *state = NULL;
4760         struct stv090x_dev *temp_int;
4761
4762         state = kzalloc(sizeof (struct stv090x_state), GFP_KERNEL);
4763         if (state == NULL)
4764                 goto error;
4765
4766         state->verbose                          = &verbose;
4767         state->config                           = config;
4768         state->i2c                              = i2c;
4769         state->frontend.ops                     = stv090x_ops;
4770         state->frontend.demodulator_priv        = state;
4771         state->demod                            = demod;
4772         state->demod_mode                       = config->demod_mode; /* Single or Dual mode */
4773         state->device                           = config->device;
4774         state->rolloff                          = STV090x_RO_35; /* default */
4775
4776         temp_int = find_dev(state->i2c,
4777                                 state->config->address);
4778
4779         if ((temp_int != NULL) && (state->demod_mode == STV090x_DUAL)) {
4780                 state->internal = temp_int->internal;
4781                 state->internal->num_used++;
4782                 dprintk(FE_INFO, 1, "Found Internal Structure!");
4783         } else {
4784                 state->internal = kmalloc(sizeof(struct stv090x_internal),
4785                                           GFP_KERNEL);
4786                 if (!state->internal)
4787                         goto error;
4788                 temp_int = append_internal(state->internal);
4789                 if (!temp_int) {
4790                         kfree(state->internal);
4791                         goto error;
4792                 }
4793                 state->internal->num_used = 1;
4794                 state->internal->mclk = 0;
4795                 state->internal->dev_ver = 0;
4796                 state->internal->i2c_adap = state->i2c;
4797                 state->internal->i2c_addr = state->config->address;
4798                 dprintk(FE_INFO, 1, "Create New Internal Structure!");
4799
4800                 mutex_init(&state->internal->demod_lock);
4801                 mutex_init(&state->internal->tuner_lock);
4802
4803                 if (stv090x_setup(&state->frontend) < 0) {
4804                         dprintk(FE_ERROR, 1, "Error setting up device");
4805                         goto err_remove;
4806                 }
4807         }
4808
4809         /* workaround for stuck DiSEqC output */
4810         if (config->diseqc_envelope_mode)
4811                 stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4812
4813         dprintk(FE_ERROR, 1, "Attaching %s demodulator(%d) Cut=0x%02x",
4814                state->device == STV0900 ? "STV0900" : "STV0903",
4815                demod,
4816                state->internal->dev_ver);
4817
4818         return &state->frontend;
4819
4820 err_remove:
4821         remove_dev(state->internal);
4822         kfree(state->internal);
4823 error:
4824         kfree(state);
4825         return NULL;
4826 }
4827 EXPORT_SYMBOL(stv090x_attach);
4828 MODULE_PARM_DESC(verbose, "Set Verbosity level");
4829 MODULE_AUTHOR("Manu Abraham");
4830 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
4831 MODULE_LICENSE("GPL");