drivers/media/dvb-frontends/stv090x.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3         STV0900/0903 Multistandard Broadcast Frontend driver
   4         Copyright (C) Manu Abraham <abraham.manu@gmail.com>
   5
   6         Copyright (C) ST Microelectronics
   7
   8 */
   9
  10 #include <linux/init.h>
  11 #include <linux/kernel.h>
  12 #include <linux/module.h>
  13 #include <linux/string.h>
  14 #include <linux/slab.h>
  15 #include <linux/mutex.h>
  16
  17 #include <linux/dvb/frontend.h>
  18 #include <media/dvb_frontend.h>
  19
  20 #include "stv6110x.h" /* for demodulator internal modes */
  21
  22 #include "stv090x_reg.h"
  23 #include "stv090x.h"
  24 #include "stv090x_priv.h"
  25
  26 /* Max transfer size done by I2C transfer functions */
  27 #define MAX_XFER_SIZE  64
  28
  29 static unsigned int verbose;
  30 module_param(verbose, int, 0644);
  31
  32 /* internal params node */
  33 struct stv090x_dev {
  34         /* pointer for internal params, one for each pair of demods */
  35         struct stv090x_internal         *internal;
  36         struct stv090x_dev              *next_dev;
  37 };
  38
  39 /* first internal params */
  40 static struct stv090x_dev *stv090x_first_dev;
  41
  42 /* find chip by i2c adapter and i2c address */
  43 static struct stv090x_dev *find_dev(struct i2c_adapter *i2c_adap,
  44                                         u8 i2c_addr)
  45 {
  46         struct stv090x_dev *temp_dev = stv090x_first_dev;
  47
  48         /*
  49          Search of the last stv0900 chip or
  50          find it by i2c adapter and i2c address */
  51         while ((temp_dev != NULL) &&
  52                 ((temp_dev->internal->i2c_adap != i2c_adap) ||
  53                 (temp_dev->internal->i2c_addr != i2c_addr))) {
  54
  55                 temp_dev = temp_dev->next_dev;
  56         }
  57
  58         return temp_dev;
  59 }
  60
  61 /* deallocating chip */
  62 static void remove_dev(struct stv090x_internal *internal)
  63 {
  64         struct stv090x_dev *prev_dev = stv090x_first_dev;
  65         struct stv090x_dev *del_dev = find_dev(internal->i2c_adap,
  66                                                 internal->i2c_addr);
  67
  68         if (del_dev != NULL) {
  69                 if (del_dev == stv090x_first_dev) {
  70                         stv090x_first_dev = del_dev->next_dev;
  71                 } else {
  72                         while (prev_dev->next_dev != del_dev)
  73                                 prev_dev = prev_dev->next_dev;
  74
  75                         prev_dev->next_dev = del_dev->next_dev;
  76                 }
  77
  78                 kfree(del_dev);
  79         }
  80 }
  81
  82 /* allocating new chip */
  83 static struct stv090x_dev *append_internal(struct stv090x_internal *internal)
  84 {
  85         struct stv090x_dev *new_dev;
  86         struct stv090x_dev *temp_dev;
  87
  88         new_dev = kmalloc(sizeof(struct stv090x_dev), GFP_KERNEL);
  89         if (new_dev != NULL) {
  90                 new_dev->internal = internal;
  91                 new_dev->next_dev = NULL;
  92
  93                 /* append to list */
  94                 if (stv090x_first_dev == NULL) {
  95                         stv090x_first_dev = new_dev;
  96                 } else {
  97                         temp_dev = stv090x_first_dev;
  98                         while (temp_dev->next_dev != NULL)
  99                                 temp_dev = temp_dev->next_dev;
 100
 101                         temp_dev->next_dev = new_dev;
 102                 }
 103         }
 104
 105         return new_dev;
 106 }
 107
 108
 109 /* DVBS1 and DSS C/N Lookup table */
 110 static const struct stv090x_tab stv090x_s1cn_tab[] = {
 111         {   0, 8917 }, /*  0.0dB */
 112         {   5, 8801 }, /*  0.5dB */
 113         {  10, 8667 }, /*  1.0dB */
 114         {  15, 8522 }, /*  1.5dB */
 115         {  20, 8355 }, /*  2.0dB */
 116         {  25, 8175 }, /*  2.5dB */
 117         {  30, 7979 }, /*  3.0dB */
 118         {  35, 7763 }, /*  3.5dB */
 119         {  40, 7530 }, /*  4.0dB */
 120         {  45, 7282 }, /*  4.5dB */
 121         {  50, 7026 }, /*  5.0dB */
 122         {  55, 6781 }, /*  5.5dB */
 123         {  60, 6514 }, /*  6.0dB */
 124         {  65, 6241 }, /*  6.5dB */
 125         {  70, 5965 }, /*  7.0dB */
 126         {  75, 5690 }, /*  7.5dB */
 127         {  80, 5424 }, /*  8.0dB */
 128         {  85, 5161 }, /*  8.5dB */
 129         {  90, 4902 }, /*  9.0dB */
 130         {  95, 4654 }, /*  9.5dB */
 131         { 100, 4417 }, /* 10.0dB */
 132         { 105, 4186 }, /* 10.5dB */
 133         { 110, 3968 }, /* 11.0dB */
 134         { 115, 3757 }, /* 11.5dB */
 135         { 120, 3558 }, /* 12.0dB */
 136         { 125, 3366 }, /* 12.5dB */
 137         { 130, 3185 }, /* 13.0dB */
 138         { 135, 3012 }, /* 13.5dB */
 139         { 140, 2850 }, /* 14.0dB */
 140         { 145, 2698 }, /* 14.5dB */
 141         { 150, 2550 }, /* 15.0dB */
 142         { 160, 2283 }, /* 16.0dB */
 143         { 170, 2042 }, /* 17.0dB */
 144         { 180, 1827 }, /* 18.0dB */
 145         { 190, 1636 }, /* 19.0dB */
 146         { 200, 1466 }, /* 20.0dB */
 147         { 210, 1315 }, /* 21.0dB */
 148         { 220, 1181 }, /* 22.0dB */
 149         { 230, 1064 }, /* 23.0dB */
 150         { 240,  960 }, /* 24.0dB */
 151         { 250,  869 }, /* 25.0dB */
 152         { 260,  792 }, /* 26.0dB */
 153         { 270,  724 }, /* 27.0dB */
 154         { 280,  665 }, /* 28.0dB */
 155         { 290,  616 }, /* 29.0dB */
 156         { 300,  573 }, /* 30.0dB */
 157         { 310,  537 }, /* 31.0dB */
 158         { 320,  507 }, /* 32.0dB */
 159         { 330,  483 }, /* 33.0dB */
 160         { 400,  398 }, /* 40.0dB */
 161         { 450,  381 }, /* 45.0dB */
 162         { 500,  377 }  /* 50.0dB */
 163 };
 164
 165 /* DVBS2 C/N Lookup table */
 166 static const struct stv090x_tab stv090x_s2cn_tab[] = {
 167         { -30, 13348 }, /* -3.0dB */
 168         { -20, 12640 }, /* -2d.0B */
 169         { -10, 11883 }, /* -1.0dB */
 170         {   0, 11101 }, /* -0.0dB */
 171         {   5, 10718 }, /*  0.5dB */
 172         {  10, 10339 }, /*  1.0dB */
 173         {  15,  9947 }, /*  1.5dB */
 174         {  20,  9552 }, /*  2.0dB */
 175         {  25,  9183 }, /*  2.5dB */
 176         {  30,  8799 }, /*  3.0dB */
 177         {  35,  8422 }, /*  3.5dB */
 178         {  40,  8062 }, /*  4.0dB */
 179         {  45,  7707 }, /*  4.5dB */
 180         {  50,  7353 }, /*  5.0dB */
 181         {  55,  7025 }, /*  5.5dB */
 182         {  60,  6684 }, /*  6.0dB */
 183         {  65,  6331 }, /*  6.5dB */
 184         {  70,  6036 }, /*  7.0dB */
 185         {  75,  5727 }, /*  7.5dB */
 186         {  80,  5437 }, /*  8.0dB */
 187         {  85,  5164 }, /*  8.5dB */
 188         {  90,  4902 }, /*  9.0dB */
 189         {  95,  4653 }, /*  9.5dB */
 190         { 100,  4408 }, /* 10.0dB */
 191         { 105,  4187 }, /* 10.5dB */
 192         { 110,  3961 }, /* 11.0dB */
 193         { 115,  3751 }, /* 11.5dB */
 194         { 120,  3558 }, /* 12.0dB */
 195         { 125,  3368 }, /* 12.5dB */
 196         { 130,  3191 }, /* 13.0dB */
 197         { 135,  3017 }, /* 13.5dB */
 198         { 140,  2862 }, /* 14.0dB */
 199         { 145,  2710 }, /* 14.5dB */
 200         { 150,  2565 }, /* 15.0dB */
 201         { 160,  2300 }, /* 16.0dB */
 202         { 170,  2058 }, /* 17.0dB */
 203         { 180,  1849 }, /* 18.0dB */
 204         { 190,  1663 }, /* 19.0dB */
 205         { 200,  1495 }, /* 20.0dB */
 206         { 210,  1349 }, /* 21.0dB */
 207         { 220,  1222 }, /* 22.0dB */
 208         { 230,  1110 }, /* 23.0dB */
 209         { 240,  1011 }, /* 24.0dB */
 210         { 250,   925 }, /* 25.0dB */
 211         { 260,   853 }, /* 26.0dB */
 212         { 270,   789 }, /* 27.0dB */
 213         { 280,   734 }, /* 28.0dB */
 214         { 290,   690 }, /* 29.0dB */
 215         { 300,   650 }, /* 30.0dB */
 216         { 310,   619 }, /* 31.0dB */
 217         { 320,   593 }, /* 32.0dB */
 218         { 330,   571 }, /* 33.0dB */
 219         { 400,   498 }, /* 40.0dB */
 220         { 450,   484 }, /* 45.0dB */
 221         { 500,   481 }  /* 50.0dB */
 222 };
 223
 224 /* RF level C/N lookup table */
 225 static const struct stv090x_tab stv090x_rf_tab[] = {
 226         {  -5, 0xcaa1 }, /*  -5dBm */
 227         { -10, 0xc229 }, /* -10dBm */
 228         { -15, 0xbb08 }, /* -15dBm */
 229         { -20, 0xb4bc }, /* -20dBm */
 230         { -25, 0xad5a }, /* -25dBm */
 231         { -30, 0xa298 }, /* -30dBm */
 232         { -35, 0x98a8 }, /* -35dBm */
 233         { -40, 0x8389 }, /* -40dBm */
 234         { -45, 0x59be }, /* -45dBm */
 235         { -50, 0x3a14 }, /* -50dBm */
 236         { -55, 0x2d11 }, /* -55dBm */
 237         { -60, 0x210d }, /* -60dBm */
 238         { -65, 0xa14f }, /* -65dBm */
 239         { -70, 0x07aa }  /* -70dBm */
 240 };
 241
 242
 243 static struct stv090x_reg stv0900_initval[] = {
 244
 245         { STV090x_OUTCFG,               0x00 },
 246         { STV090x_MODECFG,              0xff },
 247         { STV090x_AGCRF1CFG,            0x11 },
 248         { STV090x_AGCRF2CFG,            0x13 },
 249         { STV090x_TSGENERAL1X,          0x14 },
 250         { STV090x_TSTTNR2,              0x21 },
 251         { STV090x_TSTTNR4,              0x21 },
 252         { STV090x_P2_DISTXCTL,          0x22 },
 253         { STV090x_P2_F22TX,             0xc0 },
 254         { STV090x_P2_F22RX,             0xc0 },
 255         { STV090x_P2_DISRXCTL,          0x00 },
 256         { STV090x_P2_DMDCFGMD,          0xF9 },
 257         { STV090x_P2_DEMOD,             0x08 },
 258         { STV090x_P2_DMDCFG3,           0xc4 },
 259         { STV090x_P2_CARFREQ,           0xed },
 260         { STV090x_P2_LDT,               0xd0 },
 261         { STV090x_P2_LDT2,              0xb8 },
 262         { STV090x_P2_TMGCFG,            0xd2 },
 263         { STV090x_P2_TMGTHRISE,         0x20 },
 264         { STV090x_P1_TMGCFG,            0xd2 },
 265
 266         { STV090x_P2_TMGTHFALL,         0x00 },
 267         { STV090x_P2_FECSPY,            0x88 },
 268         { STV090x_P2_FSPYDATA,          0x3a },
 269         { STV090x_P2_FBERCPT4,          0x00 },
 270         { STV090x_P2_FSPYBER,           0x10 },
 271         { STV090x_P2_ERRCTRL1,          0x35 },
 272         { STV090x_P2_ERRCTRL2,          0xc1 },
 273         { STV090x_P2_CFRICFG,           0xf8 },
 274         { STV090x_P2_NOSCFG,            0x1c },
 275         { STV090x_P2_DMDTOM,            0x20 },
 276         { STV090x_P2_CORRELMANT,        0x70 },
 277         { STV090x_P2_CORRELABS,         0x88 },
 278         { STV090x_P2_AGC2O,             0x5b },
 279         { STV090x_P2_AGC2REF,           0x38 },
 280         { STV090x_P2_CARCFG,            0xe4 },
 281         { STV090x_P2_ACLC,              0x1A },
 282         { STV090x_P2_BCLC,              0x09 },
 283         { STV090x_P2_CARHDR,            0x08 },
 284         { STV090x_P2_KREFTMG,           0xc1 },
 285         { STV090x_P2_SFRUPRATIO,        0xf0 },
 286         { STV090x_P2_SFRLOWRATIO,       0x70 },
 287         { STV090x_P2_SFRSTEP,           0x58 },
 288         { STV090x_P2_TMGCFG2,           0x01 },
 289         { STV090x_P2_CAR2CFG,           0x26 },
 290         { STV090x_P2_BCLC2S2Q,          0x86 },
 291         { STV090x_P2_BCLC2S28,          0x86 },
 292         { STV090x_P2_SMAPCOEF7,         0x77 },
 293         { STV090x_P2_SMAPCOEF6,         0x85 },
 294         { STV090x_P2_SMAPCOEF5,         0x77 },
 295         { STV090x_P2_TSCFGL,            0x20 },
 296         { STV090x_P2_DMDCFG2,           0x3b },
 297         { STV090x_P2_MODCODLST0,        0xff },
 298         { STV090x_P2_MODCODLST1,        0xff },
 299         { STV090x_P2_MODCODLST2,        0xff },
 300         { STV090x_P2_MODCODLST3,        0xff },
 301         { STV090x_P2_MODCODLST4,        0xff },
 302         { STV090x_P2_MODCODLST5,        0xff },
 303         { STV090x_P2_MODCODLST6,        0xff },
 304         { STV090x_P2_MODCODLST7,        0xcc },
 305         { STV090x_P2_MODCODLST8,        0xcc },
 306         { STV090x_P2_MODCODLST9,        0xcc },
 307         { STV090x_P2_MODCODLSTA,        0xcc },
 308         { STV090x_P2_MODCODLSTB,        0xcc },
 309         { STV090x_P2_MODCODLSTC,        0xcc },
 310         { STV090x_P2_MODCODLSTD,        0xcc },
 311         { STV090x_P2_MODCODLSTE,        0xcc },
 312         { STV090x_P2_MODCODLSTF,        0xcf },
 313         { STV090x_P1_DISTXCTL,          0x22 },
 314         { STV090x_P1_F22TX,             0xc0 },
 315         { STV090x_P1_F22RX,             0xc0 },
 316         { STV090x_P1_DISRXCTL,          0x00 },
 317         { STV090x_P1_DMDCFGMD,          0xf9 },
 318         { STV090x_P1_DEMOD,             0x08 },
 319         { STV090x_P1_DMDCFG3,           0xc4 },
 320         { STV090x_P1_DMDTOM,            0x20 },
 321         { STV090x_P1_CARFREQ,           0xed },
 322         { STV090x_P1_LDT,               0xd0 },
 323         { STV090x_P1_LDT2,              0xb8 },
 324         { STV090x_P1_TMGCFG,            0xd2 },
 325         { STV090x_P1_TMGTHRISE,         0x20 },
 326         { STV090x_P1_TMGTHFALL,         0x00 },
 327         { STV090x_P1_SFRUPRATIO,        0xf0 },
 328         { STV090x_P1_SFRLOWRATIO,       0x70 },
 329         { STV090x_P1_TSCFGL,            0x20 },
 330         { STV090x_P1_FECSPY,            0x88 },
 331         { STV090x_P1_FSPYDATA,          0x3a },
 332         { STV090x_P1_FBERCPT4,          0x00 },
 333         { STV090x_P1_FSPYBER,           0x10 },
 334         { STV090x_P1_ERRCTRL1,          0x35 },
 335         { STV090x_P1_ERRCTRL2,          0xc1 },
 336         { STV090x_P1_CFRICFG,           0xf8 },
 337         { STV090x_P1_NOSCFG,            0x1c },
 338         { STV090x_P1_CORRELMANT,        0x70 },
 339         { STV090x_P1_CORRELABS,         0x88 },
 340         { STV090x_P1_AGC2O,             0x5b },
 341         { STV090x_P1_AGC2REF,           0x38 },
 342         { STV090x_P1_CARCFG,            0xe4 },
 343         { STV090x_P1_ACLC,              0x1A },
 344         { STV090x_P1_BCLC,              0x09 },
 345         { STV090x_P1_CARHDR,            0x08 },
 346         { STV090x_P1_KREFTMG,           0xc1 },
 347         { STV090x_P1_SFRSTEP,           0x58 },
 348         { STV090x_P1_TMGCFG2,           0x01 },
 349         { STV090x_P1_CAR2CFG,           0x26 },
 350         { STV090x_P1_BCLC2S2Q,          0x86 },
 351         { STV090x_P1_BCLC2S28,          0x86 },
 352         { STV090x_P1_SMAPCOEF7,         0x77 },
 353         { STV090x_P1_SMAPCOEF6,         0x85 },
 354         { STV090x_P1_SMAPCOEF5,         0x77 },
 355         { STV090x_P1_DMDCFG2,           0x3b },
 356         { STV090x_P1_MODCODLST0,        0xff },
 357         { STV090x_P1_MODCODLST1,        0xff },
 358         { STV090x_P1_MODCODLST2,        0xff },
 359         { STV090x_P1_MODCODLST3,        0xff },
 360         { STV090x_P1_MODCODLST4,        0xff },
 361         { STV090x_P1_MODCODLST5,        0xff },
 362         { STV090x_P1_MODCODLST6,        0xff },
 363         { STV090x_P1_MODCODLST7,        0xcc },
 364         { STV090x_P1_MODCODLST8,        0xcc },
 365         { STV090x_P1_MODCODLST9,        0xcc },
 366         { STV090x_P1_MODCODLSTA,        0xcc },
 367         { STV090x_P1_MODCODLSTB,        0xcc },
 368         { STV090x_P1_MODCODLSTC,        0xcc },
 369         { STV090x_P1_MODCODLSTD,        0xcc },
 370         { STV090x_P1_MODCODLSTE,        0xcc },
 371         { STV090x_P1_MODCODLSTF,        0xcf },
 372         { STV090x_GENCFG,               0x1d },
 373         { STV090x_NBITER_NF4,           0x37 },
 374         { STV090x_NBITER_NF5,           0x29 },
 375         { STV090x_NBITER_NF6,           0x37 },
 376         { STV090x_NBITER_NF7,           0x33 },
 377         { STV090x_NBITER_NF8,           0x31 },
 378         { STV090x_NBITER_NF9,           0x2f },
 379         { STV090x_NBITER_NF10,          0x39 },
 380         { STV090x_NBITER_NF11,          0x3a },
 381         { STV090x_NBITER_NF12,          0x29 },
 382         { STV090x_NBITER_NF13,          0x37 },
 383         { STV090x_NBITER_NF14,          0x33 },
 384         { STV090x_NBITER_NF15,          0x2f },
 385         { STV090x_NBITER_NF16,          0x39 },
 386         { STV090x_NBITER_NF17,          0x3a },
 387         { STV090x_NBITERNOERR,          0x04 },
 388         { STV090x_GAINLLR_NF4,          0x0C },
 389         { STV090x_GAINLLR_NF5,          0x0F },
 390         { STV090x_GAINLLR_NF6,          0x11 },
 391         { STV090x_GAINLLR_NF7,          0x14 },
 392         { STV090x_GAINLLR_NF8,          0x17 },
 393         { STV090x_GAINLLR_NF9,          0x19 },
 394         { STV090x_GAINLLR_NF10,         0x20 },
 395         { STV090x_GAINLLR_NF11,         0x21 },
 396         { STV090x_GAINLLR_NF12,         0x0D },
 397         { STV090x_GAINLLR_NF13,         0x0F },
 398         { STV090x_GAINLLR_NF14,         0x13 },
 399         { STV090x_GAINLLR_NF15,         0x1A },
 400         { STV090x_GAINLLR_NF16,         0x1F },
 401         { STV090x_GAINLLR_NF17,         0x21 },
 402         { STV090x_RCCFGH,               0x20 },
 403         { STV090x_P1_FECM,              0x01 }, /* disable DSS modes */
 404         { STV090x_P2_FECM,              0x01 }, /* disable DSS modes */
 405         { STV090x_P1_PRVIT,             0x2F }, /* disable PR 6/7 */
 406         { STV090x_P2_PRVIT,             0x2F }, /* disable PR 6/7 */
 407 };
 408
 409 static struct stv090x_reg stv0903_initval[] = {
 410         { STV090x_OUTCFG,               0x00 },
 411         { STV090x_AGCRF1CFG,            0x11 },
 412         { STV090x_STOPCLK1,             0x48 },
 413         { STV090x_STOPCLK2,             0x14 },
 414         { STV090x_TSTTNR1,              0x27 },
 415         { STV090x_TSTTNR2,              0x21 },
 416         { STV090x_P1_DISTXCTL,          0x22 },
 417         { STV090x_P1_F22TX,             0xc0 },
 418         { STV090x_P1_F22RX,             0xc0 },
 419         { STV090x_P1_DISRXCTL,          0x00 },
 420         { STV090x_P1_DMDCFGMD,          0xF9 },
 421         { STV090x_P1_DEMOD,             0x08 },
 422         { STV090x_P1_DMDCFG3,           0xc4 },
 423         { STV090x_P1_CARFREQ,           0xed },
 424         { STV090x_P1_TNRCFG2,           0x82 },
 425         { STV090x_P1_LDT,               0xd0 },
 426         { STV090x_P1_LDT2,              0xb8 },
 427         { STV090x_P1_TMGCFG,            0xd2 },
 428         { STV090x_P1_TMGTHRISE,         0x20 },
 429         { STV090x_P1_TMGTHFALL,         0x00 },
 430         { STV090x_P1_SFRUPRATIO,        0xf0 },
 431         { STV090x_P1_SFRLOWRATIO,       0x70 },
 432         { STV090x_P1_TSCFGL,            0x20 },
 433         { STV090x_P1_FECSPY,            0x88 },
 434         { STV090x_P1_FSPYDATA,          0x3a },
 435         { STV090x_P1_FBERCPT4,          0x00 },
 436         { STV090x_P1_FSPYBER,           0x10 },
 437         { STV090x_P1_ERRCTRL1,          0x35 },
 438         { STV090x_P1_ERRCTRL2,          0xc1 },
 439         { STV090x_P1_CFRICFG,           0xf8 },
 440         { STV090x_P1_NOSCFG,            0x1c },
 441         { STV090x_P1_DMDTOM,            0x20 },
 442         { STV090x_P1_CORRELMANT,        0x70 },
 443         { STV090x_P1_CORRELABS,         0x88 },
 444         { STV090x_P1_AGC2O,             0x5b },
 445         { STV090x_P1_AGC2REF,           0x38 },
 446         { STV090x_P1_CARCFG,            0xe4 },
 447         { STV090x_P1_ACLC,              0x1A },
 448         { STV090x_P1_BCLC,              0x09 },
 449         { STV090x_P1_CARHDR,            0x08 },
 450         { STV090x_P1_KREFTMG,           0xc1 },
 451         { STV090x_P1_SFRSTEP,           0x58 },
 452         { STV090x_P1_TMGCFG2,           0x01 },
 453         { STV090x_P1_CAR2CFG,           0x26 },
 454         { STV090x_P1_BCLC2S2Q,          0x86 },
 455         { STV090x_P1_BCLC2S28,          0x86 },
 456         { STV090x_P1_SMAPCOEF7,         0x77 },
 457         { STV090x_P1_SMAPCOEF6,         0x85 },
 458         { STV090x_P1_SMAPCOEF5,         0x77 },
 459         { STV090x_P1_DMDCFG2,           0x3b },
 460         { STV090x_P1_MODCODLST0,        0xff },
 461         { STV090x_P1_MODCODLST1,        0xff },
 462         { STV090x_P1_MODCODLST2,        0xff },
 463         { STV090x_P1_MODCODLST3,        0xff },
 464         { STV090x_P1_MODCODLST4,        0xff },
 465         { STV090x_P1_MODCODLST5,        0xff },
 466         { STV090x_P1_MODCODLST6,        0xff },
 467         { STV090x_P1_MODCODLST7,        0xcc },
 468         { STV090x_P1_MODCODLST8,        0xcc },
 469         { STV090x_P1_MODCODLST9,        0xcc },
 470         { STV090x_P1_MODCODLSTA,        0xcc },
 471         { STV090x_P1_MODCODLSTB,        0xcc },
 472         { STV090x_P1_MODCODLSTC,        0xcc },
 473         { STV090x_P1_MODCODLSTD,        0xcc },
 474         { STV090x_P1_MODCODLSTE,        0xcc },
 475         { STV090x_P1_MODCODLSTF,        0xcf },
 476         { STV090x_GENCFG,               0x1c },
 477         { STV090x_NBITER_NF4,           0x37 },
 478         { STV090x_NBITER_NF5,           0x29 },
 479         { STV090x_NBITER_NF6,           0x37 },
 480         { STV090x_NBITER_NF7,           0x33 },
 481         { STV090x_NBITER_NF8,           0x31 },
 482         { STV090x_NBITER_NF9,           0x2f },
 483         { STV090x_NBITER_NF10,          0x39 },
 484         { STV090x_NBITER_NF11,          0x3a },
 485         { STV090x_NBITER_NF12,          0x29 },
 486         { STV090x_NBITER_NF13,          0x37 },
 487         { STV090x_NBITER_NF14,          0x33 },
 488         { STV090x_NBITER_NF15,          0x2f },
 489         { STV090x_NBITER_NF16,          0x39 },
 490         { STV090x_NBITER_NF17,          0x3a },
 491         { STV090x_NBITERNOERR,          0x04 },
 492         { STV090x_GAINLLR_NF4,          0x0C },
 493         { STV090x_GAINLLR_NF5,          0x0F },
 494         { STV090x_GAINLLR_NF6,          0x11 },
 495         { STV090x_GAINLLR_NF7,          0x14 },
 496         { STV090x_GAINLLR_NF8,          0x17 },
 497         { STV090x_GAINLLR_NF9,          0x19 },
 498         { STV090x_GAINLLR_NF10,         0x20 },
 499         { STV090x_GAINLLR_NF11,         0x21 },
 500         { STV090x_GAINLLR_NF12,         0x0D },
 501         { STV090x_GAINLLR_NF13,         0x0F },
 502         { STV090x_GAINLLR_NF14,         0x13 },
 503         { STV090x_GAINLLR_NF15,         0x1A },
 504         { STV090x_GAINLLR_NF16,         0x1F },
 505         { STV090x_GAINLLR_NF17,         0x21 },
 506         { STV090x_RCCFGH,               0x20 },
 507         { STV090x_P1_FECM,              0x01 }, /*disable the DSS mode */
 508         { STV090x_P1_PRVIT,             0x2f }  /*disable puncture rate 6/7*/
 509 };
 510
 511 static struct stv090x_reg stv0900_cut20_val[] = {
 512
 513         { STV090x_P2_DMDCFG3,           0xe8 },
 514         { STV090x_P2_DMDCFG4,           0x10 },
 515         { STV090x_P2_CARFREQ,           0x38 },
 516         { STV090x_P2_CARHDR,            0x20 },
 517         { STV090x_P2_KREFTMG,           0x5a },
 518         { STV090x_P2_SMAPCOEF7,         0x06 },
 519         { STV090x_P2_SMAPCOEF6,         0x00 },
 520         { STV090x_P2_SMAPCOEF5,         0x04 },
 521         { STV090x_P2_NOSCFG,            0x0c },
 522         { STV090x_P1_DMDCFG3,           0xe8 },
 523         { STV090x_P1_DMDCFG4,           0x10 },
 524         { STV090x_P1_CARFREQ,           0x38 },
 525         { STV090x_P1_CARHDR,            0x20 },
 526         { STV090x_P1_KREFTMG,           0x5a },
 527         { STV090x_P1_SMAPCOEF7,         0x06 },
 528         { STV090x_P1_SMAPCOEF6,         0x00 },
 529         { STV090x_P1_SMAPCOEF5,         0x04 },
 530         { STV090x_P1_NOSCFG,            0x0c },
 531         { STV090x_GAINLLR_NF4,          0x21 },
 532         { STV090x_GAINLLR_NF5,          0x21 },
 533         { STV090x_GAINLLR_NF6,          0x20 },
 534         { STV090x_GAINLLR_NF7,          0x1F },
 535         { STV090x_GAINLLR_NF8,          0x1E },
 536         { STV090x_GAINLLR_NF9,          0x1E },
 537         { STV090x_GAINLLR_NF10,         0x1D },
 538         { STV090x_GAINLLR_NF11,         0x1B },
 539         { STV090x_GAINLLR_NF12,         0x20 },
 540         { STV090x_GAINLLR_NF13,         0x20 },
 541         { STV090x_GAINLLR_NF14,         0x20 },
 542         { STV090x_GAINLLR_NF15,         0x20 },
 543         { STV090x_GAINLLR_NF16,         0x20 },
 544         { STV090x_GAINLLR_NF17,         0x21 },
 545 };
 546
 547 static struct stv090x_reg stv0903_cut20_val[] = {
 548         { STV090x_P1_DMDCFG3,           0xe8 },
 549         { STV090x_P1_DMDCFG4,           0x10 },
 550         { STV090x_P1_CARFREQ,           0x38 },
 551         { STV090x_P1_CARHDR,            0x20 },
 552         { STV090x_P1_KREFTMG,           0x5a },
 553         { STV090x_P1_SMAPCOEF7,         0x06 },
 554         { STV090x_P1_SMAPCOEF6,         0x00 },
 555         { STV090x_P1_SMAPCOEF5,         0x04 },
 556         { STV090x_P1_NOSCFG,            0x0c },
 557         { STV090x_GAINLLR_NF4,          0x21 },
 558         { STV090x_GAINLLR_NF5,          0x21 },
 559         { STV090x_GAINLLR_NF6,          0x20 },
 560         { STV090x_GAINLLR_NF7,          0x1F },
 561         { STV090x_GAINLLR_NF8,          0x1E },
 562         { STV090x_GAINLLR_NF9,          0x1E },
 563         { STV090x_GAINLLR_NF10,         0x1D },
 564         { STV090x_GAINLLR_NF11,         0x1B },
 565         { STV090x_GAINLLR_NF12,         0x20 },
 566         { STV090x_GAINLLR_NF13,         0x20 },
 567         { STV090x_GAINLLR_NF14,         0x20 },
 568         { STV090x_GAINLLR_NF15,         0x20 },
 569         { STV090x_GAINLLR_NF16,         0x20 },
 570         { STV090x_GAINLLR_NF17,         0x21 }
 571 };
 572
 573 /* Cut 2.0 Long Frame Tracking CR loop */
 574 static struct stv090x_long_frame_crloop stv090x_s2_crl_cut20[] = {
 575         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 576         { STV090x_QPSK_12,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x1e },
 577         { STV090x_QPSK_35,  0x2f, 0x3f, 0x2e, 0x2f, 0x3d, 0x0f, 0x0e, 0x2e, 0x3d, 0x0e },
 578         { STV090x_QPSK_23,  0x2f, 0x3f, 0x2e, 0x2f, 0x0e, 0x0f, 0x0e, 0x1e, 0x3d, 0x3d },
 579         { STV090x_QPSK_34,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 580         { STV090x_QPSK_45,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 581         { STV090x_QPSK_56,  0x3f, 0x3f, 0x3e, 0x1f, 0x0e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 582         { STV090x_QPSK_89,  0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 583         { STV090x_QPSK_910, 0x3f, 0x3f, 0x3e, 0x1f, 0x1e, 0x3e, 0x0e, 0x1e, 0x3d, 0x3d },
 584         { STV090x_8PSK_35,  0x3c, 0x3e, 0x1c, 0x2e, 0x0c, 0x1e, 0x2b, 0x2d, 0x1b, 0x1d },
 585         { STV090x_8PSK_23,  0x1d, 0x3e, 0x3c, 0x2e, 0x2c, 0x1e, 0x0c, 0x2d, 0x2b, 0x1d },
 586         { STV090x_8PSK_34,  0x0e, 0x3e, 0x3d, 0x2e, 0x0d, 0x1e, 0x2c, 0x2d, 0x0c, 0x1d },
 587         { STV090x_8PSK_56,  0x2e, 0x3e, 0x1e, 0x2e, 0x2d, 0x1e, 0x3c, 0x2d, 0x2c, 0x1d },
 588         { STV090x_8PSK_89,  0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x0d, 0x2d, 0x3c, 0x1d },
 589         { STV090x_8PSK_910, 0x3e, 0x3e, 0x1e, 0x2e, 0x3d, 0x1e, 0x1d, 0x2d, 0x0d, 0x1d }
 590 };
 591
 592 /* Cut 3.0 Long Frame Tracking CR loop */
 593 static  struct stv090x_long_frame_crloop stv090x_s2_crl_cut30[] = {
 594         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 595         { STV090x_QPSK_12,  0x3c, 0x2c, 0x0c, 0x2c, 0x1b, 0x2c, 0x1b, 0x1c, 0x0b, 0x3b },
 596         { STV090x_QPSK_35,  0x0d, 0x0d, 0x0c, 0x0d, 0x1b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 597         { STV090x_QPSK_23,  0x1d, 0x0d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 598         { STV090x_QPSK_34,  0x1d, 0x1d, 0x0c, 0x1d, 0x2b, 0x3c, 0x1b, 0x1c, 0x0b, 0x3b },
 599         { STV090x_QPSK_45,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 600         { STV090x_QPSK_56,  0x2d, 0x1d, 0x1c, 0x1d, 0x2b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 601         { STV090x_QPSK_89,  0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 602         { STV090x_QPSK_910, 0x3d, 0x2d, 0x1c, 0x1d, 0x3b, 0x3c, 0x2b, 0x0c, 0x1b, 0x3b },
 603         { STV090x_8PSK_35,  0x39, 0x29, 0x39, 0x19, 0x19, 0x19, 0x19, 0x19, 0x09, 0x19 },
 604         { STV090x_8PSK_23,  0x2a, 0x39, 0x1a, 0x0a, 0x39, 0x0a, 0x29, 0x39, 0x29, 0x0a },
 605         { STV090x_8PSK_34,  0x2b, 0x3a, 0x1b, 0x1b, 0x3a, 0x1b, 0x1a, 0x0b, 0x1a, 0x3a },
 606         { STV090x_8PSK_56,  0x0c, 0x1b, 0x3b, 0x3b, 0x1b, 0x3b, 0x3a, 0x3b, 0x3a, 0x1b },
 607         { STV090x_8PSK_89,  0x0d, 0x3c, 0x2c, 0x2c, 0x2b, 0x0c, 0x0b, 0x3b, 0x0b, 0x1b },
 608         { STV090x_8PSK_910, 0x0d, 0x0d, 0x2c, 0x3c, 0x3b, 0x1c, 0x0b, 0x3b, 0x0b, 0x1b }
 609 };
 610
 611 /* Cut 2.0 Long Frame Tracking CR Loop */
 612 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut20[] = {
 613         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 614         { STV090x_16APSK_23,  0x0c, 0x0c, 0x0c, 0x0c, 0x1d, 0x0c, 0x3c, 0x0c, 0x2c, 0x0c },
 615         { STV090x_16APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0e, 0x0c, 0x2d, 0x0c, 0x1d, 0x0c },
 616         { STV090x_16APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 617         { STV090x_16APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x1e, 0x0c, 0x3d, 0x0c, 0x2d, 0x0c },
 618         { STV090x_16APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 619         { STV090x_16APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x2e, 0x0c, 0x0e, 0x0c, 0x3d, 0x0c },
 620         { STV090x_32APSK_34,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 621         { STV090x_32APSK_45,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 622         { STV090x_32APSK_56,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 623         { STV090x_32APSK_89,  0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c },
 624         { STV090x_32APSK_910, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c }
 625 };
 626
 627 /* Cut 3.0 Long Frame Tracking CR Loop */
 628 static struct stv090x_long_frame_crloop stv090x_s2_apsk_crl_cut30[] = {
 629         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 630         { STV090x_16APSK_23,  0x0a, 0x0a, 0x0a, 0x0a, 0x1a, 0x0a, 0x3a, 0x0a, 0x2a, 0x0a },
 631         { STV090x_16APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0b, 0x0a, 0x3b, 0x0a, 0x1b, 0x0a },
 632         { STV090x_16APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 633         { STV090x_16APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x1b, 0x0a, 0x3b, 0x0a, 0x2b, 0x0a },
 634         { STV090x_16APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 635         { STV090x_16APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x2b, 0x0a, 0x0c, 0x0a, 0x3b, 0x0a },
 636         { STV090x_32APSK_34,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 637         { STV090x_32APSK_45,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 638         { STV090x_32APSK_56,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 639         { STV090x_32APSK_89,  0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a },
 640         { STV090x_32APSK_910, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a, 0x0a }
 641 };
 642
 643 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut20[] = {
 644         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 645         { STV090x_QPSK_14,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x2d, 0x1f, 0x3d, 0x3e },
 646         { STV090x_QPSK_13,  0x0f, 0x3f, 0x0e, 0x3f, 0x2d, 0x2f, 0x3d, 0x0f, 0x3d, 0x2e },
 647         { STV090x_QPSK_25,  0x1f, 0x3f, 0x1e, 0x3f, 0x3d, 0x1f, 0x3d, 0x3e, 0x3d, 0x2e }
 648 };
 649
 650 static struct stv090x_long_frame_crloop stv090x_s2_lowqpsk_crl_cut30[] = {
 651         /* MODCOD  2MPon 2MPoff 5MPon 5MPoff 10MPon 10MPoff 20MPon 20MPoff 30MPon 30MPoff */
 652         { STV090x_QPSK_14,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x2a, 0x1c, 0x3a, 0x3b },
 653         { STV090x_QPSK_13,  0x0c, 0x3c, 0x0b, 0x3c, 0x2a, 0x2c, 0x3a, 0x0c, 0x3a, 0x2b },
 654         { STV090x_QPSK_25,  0x1c, 0x3c, 0x1b, 0x3c, 0x3a, 0x1c, 0x3a, 0x3b, 0x3a, 0x2b }
 655 };
 656
 657 /* Cut 2.0 Short Frame Tracking CR Loop */
 658 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut20[] = {
 659         /* MODCOD         2M    5M    10M   20M   30M */
 660         { STV090x_QPSK,   0x2f, 0x2e, 0x0e, 0x0e, 0x3d },
 661         { STV090x_8PSK,   0x3e, 0x0e, 0x2d, 0x0d, 0x3c },
 662         { STV090x_16APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d },
 663         { STV090x_32APSK, 0x1e, 0x1e, 0x1e, 0x3d, 0x2d }
 664 };
 665
 666 /* Cut 3.0 Short Frame Tracking CR Loop */
 667 static struct stv090x_short_frame_crloop stv090x_s2_short_crl_cut30[] = {
 668         /* MODCOD         2M    5M    10M   20M   30M */
 669         { STV090x_QPSK,   0x2C, 0x2B, 0x0B, 0x0B, 0x3A },
 670         { STV090x_8PSK,   0x3B, 0x0B, 0x2A, 0x0A, 0x39 },
 671         { STV090x_16APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A },
 672         { STV090x_32APSK, 0x1B, 0x1B, 0x1B, 0x3A, 0x2A }
 673 };
 674
 675 static inline s32 comp2(s32 __x, s32 __width)
 676 {
 677         if (__width == 32)
 678                 return __x;
 679         else
 680                 return (__x >= (1 << (__width - 1))) ? (__x - (1 << __width)) : __x;
 681 }
 682
 683 static int stv090x_read_reg(struct stv090x_state *state, unsigned int reg)
 684 {
 685         const struct stv090x_config *config = state->config;
 686         int ret;
 687
 688         u8 b0[] = { reg >> 8, reg & 0xff };
 689         u8 buf;
 690
 691         struct i2c_msg msg[] = {
 692                 { .addr = config->address, .flags       = 0,            .buf = b0,   .len = 2 },
 693                 { .addr = config->address, .flags       = I2C_M_RD,     .buf = &buf, .len = 1 }
 694         };
 695
 696         ret = i2c_transfer(state->i2c, msg, 2);
 697         if (ret != 2) {
 698                 if (ret != -ERESTARTSYS)
 699                         dprintk(FE_ERROR, 1,
 700                                 "Read error, Reg=[0x%02x], Status=%d",
 701                                 reg, ret);
 702
 703                 return ret < 0 ? ret : -EREMOTEIO;
 704         }
 705         if (unlikely(*state->verbose >= FE_DEBUGREG))
 706                 dprintk(FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 707                         reg, buf);
 708
 709         return (unsigned int) buf;
 710 }
 711
 712 static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8 *data, u32 count)
 713 {
 714         const struct stv090x_config *config = state->config;
 715         int ret;
 716         u8 buf[MAX_XFER_SIZE];
 717         struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 718
 719         if (2 + count > sizeof(buf)) {
 720                 printk(KERN_WARNING
 721                        "%s: i2c wr reg=%04x: len=%d is too big!\n",
 722                        KBUILD_MODNAME, reg, count);
 723                 return -EINVAL;
 724         }
 725
 726         buf[0] = reg >> 8;
 727         buf[1] = reg & 0xff;
 728         memcpy(&buf[2], data, count);
 729
 730         dprintk(FE_DEBUGREG, 1, "%s [0x%04x]: %*ph",
 731                 __func__, reg, count, data);
 732
 733         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 734         if (ret != 1) {
 735                 if (ret != -ERESTARTSYS)
 736                         dprintk(FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 737                                 reg, data[0], count, ret);
 738                 return ret < 0 ? ret : -EREMOTEIO;
 739         }
 740
 741         return 0;
 742 }
 743
 744 static int stv090x_write_reg(struct stv090x_state *state, unsigned int reg, u8 data)
 745 {
 746         u8 tmp = data; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */
 747
 748         return stv090x_write_regs(state, reg, &tmp, 1);
 749 }
 750
 751 static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 752 {
 753         u32 reg;
 754
 755         /*
 756          * NOTE! A lock is used as a FSM to control the state in which
 757          * access is serialized between two tuners on the same demod.
 758          * This has nothing to do with a lock to protect a critical section
 759          * which may in some other cases be confused with protecting I/O
 760          * access to the demodulator gate.
 761          * In case of any error, the lock is unlocked and exit within the
 762          * relevant operations themselves.
 763          */
 764         if (enable) {
 765                 if (state->config->tuner_i2c_lock)
 766                         state->config->tuner_i2c_lock(&state->frontend, 1);
 767                 else
 768                         mutex_lock(&state->internal->tuner_lock);
 769         }
 770
 771         reg = STV090x_READ_DEMOD(state, I2CRPT);
 772         if (enable) {
 773                 dprintk(FE_DEBUG, 1, "Enable Gate");
 774                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 775                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 776                         goto err;
 777
 778         } else {
 779                 dprintk(FE_DEBUG, 1, "Disable Gate");
 780                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 781                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 782                         goto err;
 783         }
 784
 785         if (!enable) {
 786                 if (state->config->tuner_i2c_lock)
 787                         state->config->tuner_i2c_lock(&state->frontend, 0);
 788                 else
 789                         mutex_unlock(&state->internal->tuner_lock);
 790         }
 791
 792         return 0;
 793 err:
 794         dprintk(FE_ERROR, 1, "I/O error");
 795         if (state->config->tuner_i2c_lock)
 796                 state->config->tuner_i2c_lock(&state->frontend, 0);
 797         else
 798                 mutex_unlock(&state->internal->tuner_lock);
 799         return -1;
 800 }
 801
 802 static void stv090x_get_lock_tmg(struct stv090x_state *state)
 803 {
 804         switch (state->algo) {
 805         case STV090x_BLIND_SEARCH:
 806                 dprintk(FE_DEBUG, 1, "Blind Search");
 807                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 808                         state->DemodTimeout = 1500;
 809                         state->FecTimeout = 400;
 810                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 811                         state->DemodTimeout = 1000;
 812                         state->FecTimeout = 300;
 813                 } else {  /*SR >20Msps*/
 814                         state->DemodTimeout = 700;
 815                         state->FecTimeout = 100;
 816                 }
 817                 break;
 818
 819         case STV090x_COLD_SEARCH:
 820         case STV090x_WARM_SEARCH:
 821         default:
 822                 dprintk(FE_DEBUG, 1, "Normal Search");
 823                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
 824                         state->DemodTimeout = 4500;
 825                         state->FecTimeout = 1700;
 826                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 827                         state->DemodTimeout = 2500;
 828                         state->FecTimeout = 1100;
 829                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 830                         state->DemodTimeout = 1000;
 831                         state->FecTimeout = 550;
 832                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 833                         state->DemodTimeout = 700;
 834                         state->FecTimeout = 250;
 835                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 836                         state->DemodTimeout = 400;
 837                         state->FecTimeout = 130;
 838                 } else {   /*SR >20Msps*/
 839                         state->DemodTimeout = 300;
 840                         state->FecTimeout = 100;
 841                 }
 842                 break;
 843         }
 844
 845         if (state->algo == STV090x_WARM_SEARCH)
 846                 state->DemodTimeout /= 2;
 847 }
 848
 849 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 850 {
 851         u32 sym;
 852
 853         if (srate > 60000000) {
 854                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 855                 sym /= (state->internal->mclk >> 12);
 856         } else if (srate > 6000000) {
 857                 sym  = (srate << 6);
 858                 sym /= (state->internal->mclk >> 10);
 859         } else {
 860                 sym  = (srate << 9);
 861                 sym /= (state->internal->mclk >> 7);
 862         }
 863
 864         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 865                 goto err;
 866         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 867                 goto err;
 868
 869         return 0;
 870 err:
 871         dprintk(FE_ERROR, 1, "I/O error");
 872         return -1;
 873 }
 874
 875 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 876 {
 877         u32 sym;
 878
 879         srate = 105 * (srate / 100);
 880         if (srate > 60000000) {
 881                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 882                 sym /= (state->internal->mclk >> 12);
 883         } else if (srate > 6000000) {
 884                 sym  = (srate << 6);
 885                 sym /= (state->internal->mclk >> 10);
 886         } else {
 887                 sym  = (srate << 9);
 888                 sym /= (state->internal->mclk >> 7);
 889         }
 890
 891         if (sym < 0x7fff) {
 892                 if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 893                         goto err;
 894                 if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 895                         goto err;
 896         } else {
 897                 if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 898                         goto err;
 899                 if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 900                         goto err;
 901         }
 902
 903         return 0;
 904 err:
 905         dprintk(FE_ERROR, 1, "I/O error");
 906         return -1;
 907 }
 908
 909 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 910 {
 911         u32 sym;
 912
 913         srate = 95 * (srate / 100);
 914         if (srate > 60000000) {
 915                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 916                 sym /= (state->internal->mclk >> 12);
 917         } else if (srate > 6000000) {
 918                 sym  = (srate << 6);
 919                 sym /= (state->internal->mclk >> 10);
 920         } else {
 921                 sym  = (srate << 9);
 922                 sym /= (state->internal->mclk >> 7);
 923         }
 924
 925         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 926                 goto err;
 927         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 928                 goto err;
 929         return 0;
 930 err:
 931         dprintk(FE_ERROR, 1, "I/O error");
 932         return -1;
 933 }
 934
 935 static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 936 {
 937         u32 ro;
 938
 939         switch (rolloff) {
 940         case STV090x_RO_20:
 941                 ro = 20;
 942                 break;
 943         case STV090x_RO_25:
 944                 ro = 25;
 945                 break;
 946         case STV090x_RO_35:
 947         default:
 948                 ro = 35;
 949                 break;
 950         }
 951
 952         return srate + (srate * ro) / 100;
 953 }
 954
 955 static int stv090x_set_vit_thacq(struct stv090x_state *state)
 956 {
 957         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 958                 goto err;
 959         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 960                 goto err;
 961         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 962                 goto err;
 963         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 964                 goto err;
 965         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 966                 goto err;
 967         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 968                 goto err;
 969         return 0;
 970 err:
 971         dprintk(FE_ERROR, 1, "I/O error");
 972         return -1;
 973 }
 974
 975 static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 976 {
 977         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 978                 goto err;
 979         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 980                 goto err;
 981         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 982                 goto err;
 983         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 984                 goto err;
 985         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 986                 goto err;
 987         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 988                 goto err;
 989         return 0;
 990 err:
 991         dprintk(FE_ERROR, 1, "I/O error");
 992         return -1;
 993 }
 994
 995 static int stv090x_set_viterbi(struct stv090x_state *state)
 996 {
 997         switch (state->search_mode) {
 998         case STV090x_SEARCH_AUTO:
 999                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1000                         goto err;
1001                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1002                         goto err;
1003                 break;
1004         case STV090x_SEARCH_DVBS1:
1005                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1006                         goto err;
1007                 switch (state->fec) {
1008                 case STV090x_PR12:
1009                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1010                                 goto err;
1011                         break;
1012
1013                 case STV090x_PR23:
1014                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1015                                 goto err;
1016                         break;
1017
1018                 case STV090x_PR34:
1019                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1020                                 goto err;
1021                         break;
1022
1023                 case STV090x_PR56:
1024                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1025                                 goto err;
1026                         break;
1027
1028                 case STV090x_PR78:
1029                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1030                                 goto err;
1031                         break;
1032
1033                 default:
1034                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1035                                 goto err;
1036                         break;
1037                 }
1038                 break;
1039         case STV090x_SEARCH_DSS:
1040                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1041                         goto err;
1042                 switch (state->fec) {
1043                 case STV090x_PR12:
1044                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1045                                 goto err;
1046                         break;
1047
1048                 case STV090x_PR23:
1049                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1050                                 goto err;
1051                         break;
1052
1053                 case STV090x_PR67:
1054                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1055                                 goto err;
1056                         break;
1057
1058                 default:
1059                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1060                                 goto err;
1061                         break;
1062                 }
1063                 break;
1064         default:
1065                 break;
1066         }
1067         return 0;
1068 err:
1069         dprintk(FE_ERROR, 1, "I/O error");
1070         return -1;
1071 }
1072
1073 static int stv090x_stop_modcod(struct stv090x_state *state)
1074 {
1075         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1076                 goto err;
1077         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1078                 goto err;
1079         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1080                 goto err;
1081         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1082                 goto err;
1083         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1084                 goto err;
1085         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1086                 goto err;
1087         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1088                 goto err;
1089         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1090                 goto err;
1091         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1092                 goto err;
1093         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1094                 goto err;
1095         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1096                 goto err;
1097         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1098                 goto err;
1099         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1100                 goto err;
1101         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1102                 goto err;
1103         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1104                 goto err;
1105         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1106                 goto err;
1107         return 0;
1108 err:
1109         dprintk(FE_ERROR, 1, "I/O error");
1110         return -1;
1111 }
1112
1113 static int stv090x_activate_modcod(struct stv090x_state *state)
1114 {
1115         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1116                 goto err;
1117         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1118                 goto err;
1119         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1120                 goto err;
1121         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1122                 goto err;
1123         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1124                 goto err;
1125         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1126                 goto err;
1127         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1128                 goto err;
1129         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1130                 goto err;
1131         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1132                 goto err;
1133         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1134                 goto err;
1135         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1136                 goto err;
1137         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1138                 goto err;
1139         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1140                 goto err;
1141         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1142                 goto err;
1143         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1144                 goto err;
1145         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1146                 goto err;
1147
1148         return 0;
1149 err:
1150         dprintk(FE_ERROR, 1, "I/O error");
1151         return -1;
1152 }
1153
1154 static int stv090x_activate_modcod_single(struct stv090x_state *state)
1155 {
1156
1157         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1158                 goto err;
1159         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1160                 goto err;
1161         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1162                 goto err;
1163         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1164                 goto err;
1165         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1166                 goto err;
1167         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1168                 goto err;
1169         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1170                 goto err;
1171         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1172                 goto err;
1173         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1174                 goto err;
1175         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1176                 goto err;
1177         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1178                 goto err;
1179         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1180                 goto err;
1181         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1182                 goto err;
1183         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1184                 goto err;
1185         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1186                 goto err;
1187         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1188                 goto err;
1189
1190         return 0;
1191
1192 err:
1193         dprintk(FE_ERROR, 1, "I/O error");
1194         return -1;
1195 }
1196
1197 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1198 {
1199         u32 reg;
1200
1201         switch (state->demod) {
1202         case STV090x_DEMODULATOR_0:
1203                 mutex_lock(&state->internal->demod_lock);
1204                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1205                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1206                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1207                         goto err;
1208                 mutex_unlock(&state->internal->demod_lock);
1209                 break;
1210
1211         case STV090x_DEMODULATOR_1:
1212                 mutex_lock(&state->internal->demod_lock);
1213                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1214                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1215                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1216                         goto err;
1217                 mutex_unlock(&state->internal->demod_lock);
1218                 break;
1219
1220         default:
1221                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1222                 break;
1223         }
1224         return 0;
1225 err:
1226         mutex_unlock(&state->internal->demod_lock);
1227         dprintk(FE_ERROR, 1, "I/O error");
1228         return -1;
1229 }
1230
1231 static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1232 {
1233         if (state->internal->dev_ver >= 0x30) {
1234                 /* Set ACLC BCLC optimised value vs SR */
1235                 if (state->srate >= 15000000) {
1236                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1237                                 goto err;
1238                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1239                                 goto err;
1240                 } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1241                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1242                                 goto err;
1243                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1244                                 goto err;
1245                 } else if (state->srate < 7000000) {
1246                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1247                                 goto err;
1248                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1249                                 goto err;
1250                 }
1251
1252         } else {
1253                 /* Cut 2.0 */
1254                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1255                         goto err;
1256                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1257                         goto err;
1258         }
1259         return 0;
1260 err:
1261         dprintk(FE_ERROR, 1, "I/O error");
1262         return -1;
1263 }
1264
1265 static int stv090x_delivery_search(struct stv090x_state *state)
1266 {
1267         u32 reg;
1268
1269         switch (state->search_mode) {
1270         case STV090x_SEARCH_DVBS1:
1271         case STV090x_SEARCH_DSS:
1272                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1273                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1274                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1275                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1276                         goto err;
1277
1278                 /* Activate Viterbi decoder in legacy search,
1279                  * do not use FRESVIT1, might impact VITERBI2
1280                  */
1281                 if (stv090x_vitclk_ctl(state, 0) < 0)
1282                         goto err;
1283
1284                 if (stv090x_dvbs_track_crl(state) < 0)
1285                         goto err;
1286
1287                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1288                         goto err;
1289
1290                 if (stv090x_set_vit_thacq(state) < 0)
1291                         goto err;
1292                 if (stv090x_set_viterbi(state) < 0)
1293                         goto err;
1294                 break;
1295
1296         case STV090x_SEARCH_DVBS2:
1297                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1298                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1299                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1300                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1301                         goto err;
1302                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1303                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1304                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1305                         goto err;
1306
1307                 if (stv090x_vitclk_ctl(state, 1) < 0)
1308                         goto err;
1309
1310                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1311                         goto err;
1312                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1313                         goto err;
1314
1315                 if (state->internal->dev_ver <= 0x20) {
1316                         /* enable S2 carrier loop */
1317                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1318                                 goto err;
1319                 } else {
1320                         /* > Cut 3: Stop carrier 3 */
1321                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1322                                 goto err;
1323                 }
1324
1325                 if (state->demod_mode != STV090x_SINGLE) {
1326                         /* Cut 2: enable link during search */
1327                         if (stv090x_activate_modcod(state) < 0)
1328                                 goto err;
1329                 } else {
1330                         /* Single demodulator
1331                          * Authorize SHORT and LONG frames,
1332                          * QPSK, 8PSK, 16APSK and 32APSK
1333                          */
1334                         if (stv090x_activate_modcod_single(state) < 0)
1335                                 goto err;
1336                 }
1337
1338                 if (stv090x_set_vit_thtracq(state) < 0)
1339                         goto err;
1340                 break;
1341
1342         case STV090x_SEARCH_AUTO:
1343         default:
1344                 /* enable DVB-S2 and DVB-S2 in Auto MODE */
1345                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1346                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1347                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1348                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1349                         goto err;
1350                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1351                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1352                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1353                         goto err;
1354
1355                 if (stv090x_vitclk_ctl(state, 0) < 0)
1356                         goto err;
1357
1358                 if (stv090x_dvbs_track_crl(state) < 0)
1359                         goto err;
1360
1361                 if (state->internal->dev_ver <= 0x20) {
1362                         /* enable S2 carrier loop */
1363                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1364                                 goto err;
1365                 } else {
1366                         /* > Cut 3: Stop carrier 3 */
1367                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1368                                 goto err;
1369                 }
1370
1371                 if (state->demod_mode != STV090x_SINGLE) {
1372                         /* Cut 2: enable link during search */
1373                         if (stv090x_activate_modcod(state) < 0)
1374                                 goto err;
1375                 } else {
1376                         /* Single demodulator
1377                          * Authorize SHORT and LONG frames,
1378                          * QPSK, 8PSK, 16APSK and 32APSK
1379                          */
1380                         if (stv090x_activate_modcod_single(state) < 0)
1381                                 goto err;
1382                 }
1383
1384                 if (stv090x_set_vit_thacq(state) < 0)
1385                         goto err;
1386
1387                 if (stv090x_set_viterbi(state) < 0)
1388                         goto err;
1389                 break;
1390         }
1391         return 0;
1392 err:
1393         dprintk(FE_ERROR, 1, "I/O error");
1394         return -1;
1395 }
1396
1397 static int stv090x_start_search(struct stv090x_state *state)
1398 {
1399         u32 reg, freq_abs;
1400         s16 freq;
1401
1402         /* Reset demodulator */
1403         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1404         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1405         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1406                 goto err;
1407
1408         if (state->internal->dev_ver <= 0x20) {
1409                 if (state->srate <= 5000000) {
1410                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1411                                 goto err;
1412                         if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1413                                 goto err;
1414                         if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1415                                 goto err;
1416                         if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1417                                 goto err;
1418                         if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1419                                 goto err;
1420
1421                         /*enlarge the timing bandwidth for Low SR*/
1422                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1423                                 goto err;
1424                 } else {
1425                         /* If the symbol rate is >5 Msps
1426                         Set The carrier search up and low to auto mode */
1427                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1428                                 goto err;
1429                         /*reduce the timing bandwidth for high SR*/
1430                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1431                                 goto err;
1432                 }
1433         } else {
1434                 /* >= Cut 3 */
1435                 if (state->srate <= 5000000) {
1436                         /* enlarge the timing bandwidth for Low SR */
1437                         STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1438                 } else {
1439                         /* reduce timing bandwidth for high SR */
1440                         STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1441                 }
1442
1443                 /* Set CFR min and max to manual mode */
1444                 STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1445
1446                 if (state->algo == STV090x_WARM_SEARCH) {
1447                         /* WARM Start
1448                          * CFR min = -1MHz,
1449                          * CFR max = +1MHz
1450                          */
1451                         freq_abs  = 1000 << 16;
1452                         freq_abs /= (state->internal->mclk / 1000);
1453                         freq      = (s16) freq_abs;
1454                 } else {
1455                         /* COLD Start
1456                          * CFR min =- (SearchRange / 2 + 600KHz)
1457                          * CFR max = +(SearchRange / 2 + 600KHz)
1458                          * (600KHz for the tuner step size)
1459                          */
1460                         freq_abs  = (state->search_range / 2000) + 600;
1461                         freq_abs  = freq_abs << 16;
1462                         freq_abs /= (state->internal->mclk / 1000);
1463                         freq      = (s16) freq_abs;
1464                 }
1465
1466                 if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1467                         goto err;
1468                 if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1469                         goto err;
1470
1471                 freq *= -1;
1472
1473                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1474                         goto err;
1475                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1476                         goto err;
1477
1478         }
1479
1480         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1481                 goto err;
1482         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1483                 goto err;
1484
1485         if (state->internal->dev_ver >= 0x20) {
1486                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1487                         goto err;
1488                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1489                         goto err;
1490
1491                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1492                         (state->search_mode == STV090x_SEARCH_DSS)      ||
1493                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1494
1495                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1496                                 goto err;
1497                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1498                                 goto err;
1499                 }
1500         }
1501
1502         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1503                 goto err;
1504         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1505                 goto err;
1506         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1507                 goto err;
1508
1509         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1510         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1511         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1512         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1513                 goto err;
1514         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1515         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1516         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1517                 goto err;
1518
1519         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1520                 goto err;
1521
1522         if (state->internal->dev_ver >= 0x20) {
1523                 /*Frequency offset detector setting*/
1524                 if (state->srate < 2000000) {
1525                         if (state->internal->dev_ver <= 0x20) {
1526                                 /* Cut 2 */
1527                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1528                                         goto err;
1529                         } else {
1530                                 /* Cut 3 */
1531                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1532                                         goto err;
1533                         }
1534                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1535                                 goto err;
1536                 } else if (state->srate < 10000000) {
1537                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1538                                 goto err;
1539                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1540                                 goto err;
1541                 } else {
1542                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1543                                 goto err;
1544                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1545                                 goto err;
1546                 }
1547         } else {
1548                 if (state->srate < 10000000) {
1549                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1550                                 goto err;
1551                 } else {
1552                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1553                                 goto err;
1554                 }
1555         }
1556
1557         switch (state->algo) {
1558         case STV090x_WARM_SEARCH:
1559                 /* The symbol rate and the exact
1560                  * carrier Frequency are known
1561                  */
1562                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1563                         goto err;
1564                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1565                         goto err;
1566                 break;
1567
1568         case STV090x_COLD_SEARCH:
1569                 /* The symbol rate is known */
1570                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1571                         goto err;
1572                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1573                         goto err;
1574                 break;
1575
1576         default:
1577                 break;
1578         }
1579         return 0;
1580 err:
1581         dprintk(FE_ERROR, 1, "I/O error");
1582         return -1;
1583 }
1584
1585 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1586 {
1587         u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1588         s32 i, j, steps, dir;
1589
1590         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1591                 goto err;
1592         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1593         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1594         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1595         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1596                 goto err;
1597
1598         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1599                 goto err;
1600         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1601                 goto err;
1602         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1603                 goto err;
1604         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1605                 goto err;
1606         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1607                 goto err;
1608         if (stv090x_set_srate(state, 1000000) < 0)
1609                 goto err;
1610
1611         steps  = state->search_range / 1000000;
1612         if (steps <= 0)
1613                 steps = 1;
1614
1615         dir = 1;
1616         freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1617         freq_init = 0;
1618
1619         for (i = 0; i < steps; i++) {
1620                 if (dir > 0)
1621                         freq_init = freq_init + (freq_step * i);
1622                 else
1623                         freq_init = freq_init - (freq_step * i);
1624
1625                 dir *= -1;
1626
1627                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1628                         goto err;
1629                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1630                         goto err;
1631                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1632                         goto err;
1633                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1634                         goto err;
1635                 msleep(10);
1636
1637                 agc2 = 0;
1638                 for (j = 0; j < 10; j++) {
1639                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1640                                 STV090x_READ_DEMOD(state, AGC2I0);
1641                 }
1642                 agc2 /= 10;
1643                 if (agc2 < agc2_min)
1644                         agc2_min = agc2;
1645         }
1646
1647         return agc2_min;
1648 err:
1649         dprintk(FE_ERROR, 1, "I/O error");
1650         return -1;
1651 }
1652
1653 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1654 {
1655         u8 r3, r2, r1, r0;
1656         s32 srate, int_1, int_2, tmp_1, tmp_2;
1657
1658         r3 = STV090x_READ_DEMOD(state, SFR3);
1659         r2 = STV090x_READ_DEMOD(state, SFR2);
1660         r1 = STV090x_READ_DEMOD(state, SFR1);
1661         r0 = STV090x_READ_DEMOD(state, SFR0);
1662
1663         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1664
1665         int_1 = clk >> 16;
1666         int_2 = srate >> 16;
1667
1668         tmp_1 = clk % 0x10000;
1669         tmp_2 = srate % 0x10000;
1670
1671         srate = (int_1 * int_2) +
1672                 ((int_1 * tmp_2) >> 16) +
1673                 ((int_2 * tmp_1) >> 16);
1674
1675         return srate;
1676 }
1677
1678 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1679 {
1680         struct dvb_frontend *fe = &state->frontend;
1681
1682         int tmg_lock = 0, i;
1683         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1684         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1685         u32 agc2th;
1686
1687         if (state->internal->dev_ver >= 0x30)
1688                 agc2th = 0x2e00;
1689         else
1690                 agc2th = 0x1f00;
1691
1692         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1693         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1694         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1695                 goto err;
1696         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1697                 goto err;
1698         if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1699                 goto err;
1700         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1701                 goto err;
1702         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1703                 goto err;
1704         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1705         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1706         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1707         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1708                 goto err;
1709
1710         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1711                 goto err;
1712         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1713                 goto err;
1714         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1715                 goto err;
1716         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1717                 goto err;
1718         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1719                 goto err;
1720         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1721                 goto err;
1722
1723         if (state->internal->dev_ver >= 0x30) {
1724                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1725                         goto err;
1726                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1727                         goto err;
1728
1729         } else if (state->internal->dev_ver >= 0x20) {
1730                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1731                         goto err;
1732                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1733                         goto err;
1734         }
1735
1736         if (state->srate <= 2000000)
1737                 car_step = 1000;
1738         else if (state->srate <= 5000000)
1739                 car_step = 2000;
1740         else if (state->srate <= 12000000)
1741                 car_step = 3000;
1742         else
1743                 car_step = 5000;
1744
1745         steps  = -1 + ((state->search_range / 1000) / car_step);
1746         steps /= 2;
1747         steps  = (2 * steps) + 1;
1748         if (steps < 0)
1749                 steps = 1;
1750         else if (steps > 10) {
1751                 steps = 11;
1752                 car_step = (state->search_range / 1000) / 10;
1753         }
1754         cur_step = 0;
1755         dir = 1;
1756         freq = state->frequency;
1757
1758         while ((!tmg_lock) && (cur_step < steps)) {
1759                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1760                         goto err;
1761                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1762                         goto err;
1763                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1764                         goto err;
1765                 if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1766                         goto err;
1767                 if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1768                         goto err;
1769                 /* trigger acquisition */
1770                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1771                         goto err;
1772                 msleep(50);
1773                 for (i = 0; i < 10; i++) {
1774                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1775                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1776                                 tmg_cpt++;
1777                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1778                                 STV090x_READ_DEMOD(state, AGC2I0);
1779                 }
1780                 agc2 /= 10;
1781                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1782                 cur_step++;
1783                 dir *= -1;
1784                 if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1785                     (srate_coarse < 50000000) && (srate_coarse > 850000))
1786                         tmg_lock = 1;
1787                 else if (cur_step < steps) {
1788                         if (dir > 0)
1789                                 freq += cur_step * car_step;
1790                         else
1791                                 freq -= cur_step * car_step;
1792
1793                         /* Setup tuner */
1794                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1795                                 goto err;
1796
1797                         if (state->config->tuner_set_frequency) {
1798                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
1799                                         goto err_gateoff;
1800                         }
1801
1802                         if (state->config->tuner_set_bandwidth) {
1803                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1804                                         goto err_gateoff;
1805                         }
1806
1807                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1808                                 goto err;
1809
1810                         msleep(50);
1811
1812                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1813                                 goto err;
1814
1815                         if (state->config->tuner_get_status) {
1816                                 if (state->config->tuner_get_status(fe, &reg) < 0)
1817                                         goto err_gateoff;
1818                         }
1819
1820                         if (reg)
1821                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1822                         else
1823                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1824
1825                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1826                                 goto err;
1827
1828                 }
1829         }
1830         if (!tmg_lock)
1831                 srate_coarse = 0;
1832         else
1833                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1834
1835         return srate_coarse;
1836
1837 err_gateoff:
1838         stv090x_i2c_gate_ctrl(state, 0);
1839 err:
1840         dprintk(FE_ERROR, 1, "I/O error");
1841         return -1;
1842 }
1843
1844 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1845 {
1846         u32 srate_coarse, freq_coarse, sym, reg;
1847
1848         srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1849         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1850         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1851         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1852
1853         if (sym < state->srate)
1854                 srate_coarse = 0;
1855         else {
1856                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1857                         goto err;
1858                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1859                         goto err;
1860                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1861                         goto err;
1862                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1863                         goto err;
1864                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1865                         goto err;
1866                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1867                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1868                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1869                         goto err;
1870
1871                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1872                         goto err;
1873
1874                 if (state->internal->dev_ver >= 0x30) {
1875                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1876                                 goto err;
1877                 } else if (state->internal->dev_ver >= 0x20) {
1878                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1879                                 goto err;
1880                 }
1881
1882                 if (srate_coarse > 3000000) {
1883                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1884                         sym  = (sym / 1000) * 65536;
1885                         sym /= (state->internal->mclk / 1000);
1886                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1887                                 goto err;
1888                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1889                                 goto err;
1890                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1891                         sym  = (sym / 1000) * 65536;
1892                         sym /= (state->internal->mclk / 1000);
1893                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1894                                 goto err;
1895                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1896                                 goto err;
1897                         sym  = (srate_coarse / 1000) * 65536;
1898                         sym /= (state->internal->mclk / 1000);
1899                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1900                                 goto err;
1901                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1902                                 goto err;
1903                 } else {
1904                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1905                         sym  = (sym / 100) * 65536;
1906                         sym /= (state->internal->mclk / 100);
1907                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1908                                 goto err;
1909                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1910                                 goto err;
1911                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1912                         sym  = (sym / 100) * 65536;
1913                         sym /= (state->internal->mclk / 100);
1914                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1915                                 goto err;
1916                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1917                                 goto err;
1918                         sym  = (srate_coarse / 100) * 65536;
1919                         sym /= (state->internal->mclk / 100);
1920                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1921                                 goto err;
1922                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1923                                 goto err;
1924                 }
1925                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1926                         goto err;
1927                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1928                         goto err;
1929                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1930                         goto err;
1931                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1932                         goto err;
1933         }
1934
1935         return srate_coarse;
1936
1937 err:
1938         dprintk(FE_ERROR, 1, "I/O error");
1939         return -1;
1940 }
1941
1942 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1943 {
1944         s32 timer = 0, lock = 0;
1945         u32 reg;
1946         u8 stat;
1947
1948         while ((timer < timeout) && (!lock)) {
1949                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1950                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1951
1952                 switch (stat) {
1953                 case 0: /* searching */
1954                 case 1: /* first PLH detected */
1955                 default:
1956                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1957                         lock = 0;
1958                         break;
1959                 case 2: /* DVB-S2 mode */
1960                 case 3: /* DVB-S1/legacy mode */
1961                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1962                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1963                         break;
1964                 }
1965
1966                 if (!lock)
1967                         msleep(10);
1968                 else
1969                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1970
1971                 timer += 10;
1972         }
1973         return lock;
1974 }
1975
1976 static int stv090x_blind_search(struct stv090x_state *state)
1977 {
1978         u32 agc2, reg, srate_coarse;
1979         s32 cpt_fail, agc2_ovflw, i;
1980         u8 k_ref, k_max, k_min;
1981         int coarse_fail = 0;
1982         int lock;
1983
1984         k_max = 110;
1985         k_min = 10;
1986
1987         agc2 = stv090x_get_agc2_min_level(state);
1988
1989         if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1990                 lock = 0;
1991         } else {
1992
1993                 if (state->internal->dev_ver <= 0x20) {
1994                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1995                                 goto err;
1996                 } else {
1997                         /* > Cut 3 */
1998                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
1999                                 goto err;
2000                 }
2001
2002                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2003                         goto err;
2004
2005                 if (state->internal->dev_ver >= 0x20) {
2006                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2007                                 goto err;
2008                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2009                                 goto err;
2010                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2011                                 goto err;
2012                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2013                                 goto err;
2014                 }
2015
2016                 k_ref = k_max;
2017                 do {
2018                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2019                                 goto err;
2020                         if (stv090x_srate_srch_coarse(state) != 0) {
2021                                 srate_coarse = stv090x_srate_srch_fine(state);
2022                                 if (srate_coarse != 0) {
2023                                         stv090x_get_lock_tmg(state);
2024                                         lock = stv090x_get_dmdlock(state,
2025                                                         state->DemodTimeout);
2026                                 } else {
2027                                         lock = 0;
2028                                 }
2029                         } else {
2030                                 cpt_fail = 0;
2031                                 agc2_ovflw = 0;
2032                                 for (i = 0; i < 10; i++) {
2033                                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2034                                                 STV090x_READ_DEMOD(state, AGC2I0);
2035                                         if (agc2 >= 0xff00)
2036                                                 agc2_ovflw++;
2037                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
2038                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2039                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2040
2041                                                 cpt_fail++;
2042                                 }
2043                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
2044                                         coarse_fail = 1;
2045
2046                                 lock = 0;
2047                         }
2048                         k_ref -= 20;
2049                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2050         }
2051
2052         return lock;
2053
2054 err:
2055         dprintk(FE_ERROR, 1, "I/O error");
2056         return -1;
2057 }
2058
2059 static int stv090x_chk_tmg(struct stv090x_state *state)
2060 {
2061         u32 reg;
2062         s32 tmg_cpt = 0, i;
2063         u8 freq, tmg_thh, tmg_thl;
2064         int tmg_lock = 0;
2065
2066         freq = STV090x_READ_DEMOD(state, CARFREQ);
2067         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2068         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2069         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2070                 goto err;
2071         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2072                 goto err;
2073
2074         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2075         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2076         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2077                 goto err;
2078         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2079                 goto err;
2080
2081         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2082                 goto err;
2083         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2084                 goto err;
2085
2086         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2087                 goto err;
2088         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2089                 goto err;
2090         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2091                 goto err;
2092
2093         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2094                 goto err;
2095         msleep(10);
2096
2097         for (i = 0; i < 10; i++) {
2098                 reg = STV090x_READ_DEMOD(state, DSTATUS);
2099                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2100                         tmg_cpt++;
2101                 msleep(1);
2102         }
2103         if (tmg_cpt >= 3)
2104                 tmg_lock = 1;
2105
2106         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2107                 goto err;
2108         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2109                 goto err;
2110         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2111                 goto err;
2112
2113         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2114                 goto err;
2115         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2116                 goto err;
2117         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2118                 goto err;
2119
2120         return  tmg_lock;
2121
2122 err:
2123         dprintk(FE_ERROR, 1, "I/O error");
2124         return -1;
2125 }
2126
2127 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2128 {
2129         struct dvb_frontend *fe = &state->frontend;
2130
2131         u32 reg;
2132         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2133         int lock;
2134
2135         if (state->srate >= 10000000)
2136                 timeout_lock = timeout_dmd / 3;
2137         else
2138                 timeout_lock = timeout_dmd / 2;
2139
2140         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2141         if (lock)
2142                 return lock;
2143
2144         if (state->srate >= 10000000) {
2145                 if (stv090x_chk_tmg(state)) {
2146                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2147                                 goto err;
2148                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2149                                 goto err;
2150                         return stv090x_get_dmdlock(state, timeout_dmd);
2151                 }
2152                 return 0;
2153         }
2154
2155         if (state->srate <= 4000000)
2156                 car_step = 1000;
2157         else if (state->srate <= 7000000)
2158                 car_step = 2000;
2159         else if (state->srate <= 10000000)
2160                 car_step = 3000;
2161         else
2162                 car_step = 5000;
2163
2164         steps  = (state->search_range / 1000) / car_step;
2165         steps /= 2;
2166         steps  = 2 * (steps + 1);
2167         if (steps < 0)
2168                 steps = 2;
2169         else if (steps > 12)
2170                 steps = 12;
2171
2172         cur_step = 1;
2173         dir = 1;
2174
2175         freq = state->frequency;
2176         state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2177         while ((cur_step <= steps) && (!lock)) {
2178                 if (dir > 0)
2179                         freq += cur_step * car_step;
2180                 else
2181                         freq -= cur_step * car_step;
2182
2183                 /* Setup tuner */
2184                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2185                         goto err;
2186
2187                 if (state->config->tuner_set_frequency) {
2188                         if (state->config->tuner_set_frequency(fe, freq) < 0)
2189                                 goto err_gateoff;
2190                 }
2191
2192                 if (state->config->tuner_set_bandwidth) {
2193                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2194                                 goto err_gateoff;
2195                 }
2196
2197                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2198                         goto err;
2199
2200                 msleep(50);
2201
2202                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2203                         goto err;
2204
2205                 if (state->config->tuner_get_status) {
2206                         if (state->config->tuner_get_status(fe, &reg) < 0)
2207                                 goto err_gateoff;
2208                         if (reg)
2209                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2210                         else
2211                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2212                 }
2213
2214                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2215                         goto err;
2216
2217                 STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2218                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2219                         goto err;
2220                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2221                         goto err;
2222                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2223                         goto err;
2224                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2225                         goto err;
2226                 lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2227
2228                 dir *= -1;
2229                 cur_step++;
2230         }
2231
2232         return lock;
2233
2234 err_gateoff:
2235         stv090x_i2c_gate_ctrl(state, 0);
2236 err:
2237         dprintk(FE_ERROR, 1, "I/O error");
2238         return -1;
2239 }
2240
2241 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2242 {
2243         s32 timeout, inc, steps_max, srate, car_max;
2244
2245         srate = state->srate;
2246         car_max = state->search_range / 1000;
2247         car_max += car_max / 10;
2248         car_max  = 65536 * (car_max / 2);
2249         car_max /= (state->internal->mclk / 1000);
2250
2251         if (car_max > 0x4000)
2252                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2253
2254         inc  = srate;
2255         inc /= state->internal->mclk / 1000;
2256         inc *= 256;
2257         inc *= 256;
2258         inc /= 1000;
2259
2260         switch (state->search_mode) {
2261         case STV090x_SEARCH_DVBS1:
2262         case STV090x_SEARCH_DSS:
2263                 inc *= 3; /* freq step = 3% of srate */
2264                 timeout = 20;
2265                 break;
2266
2267         case STV090x_SEARCH_DVBS2:
2268                 inc *= 4;
2269                 timeout = 25;
2270                 break;
2271
2272         case STV090x_SEARCH_AUTO:
2273         default:
2274                 inc *= 3;
2275                 timeout = 25;
2276                 break;
2277         }
2278         inc /= 100;
2279         if ((inc > car_max) || (inc < 0))
2280                 inc = car_max / 2; /* increment <= 1/8 Mclk */
2281
2282         timeout *= 27500; /* 27.5 Msps reference */
2283         if (srate > 0)
2284                 timeout /= (srate / 1000);
2285
2286         if ((timeout > 100) || (timeout < 0))
2287                 timeout = 100;
2288
2289         steps_max = (car_max / inc) + 1; /* min steps = 3 */
2290         if ((steps_max > 100) || (steps_max < 0)) {
2291                 steps_max = 100; /* max steps <= 100 */
2292                 inc = car_max / steps_max;
2293         }
2294         *freq_inc = inc;
2295         *timeout_sw = timeout;
2296         *steps = steps_max;
2297
2298         return 0;
2299 }
2300
2301 static int stv090x_chk_signal(struct stv090x_state *state)
2302 {
2303         s32 offst_car, agc2, car_max;
2304         int no_signal;
2305
2306         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2307         offst_car |= STV090x_READ_DEMOD(state, CFR1);
2308         offst_car = comp2(offst_car, 16);
2309
2310         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2311         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2312         car_max = state->search_range / 1000;
2313
2314         car_max += (car_max / 10); /* 10% margin */
2315         car_max  = (65536 * car_max / 2);
2316         car_max /= state->internal->mclk / 1000;
2317
2318         if (car_max > 0x4000)
2319                 car_max = 0x4000;
2320
2321         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2322                 no_signal = 1;
2323                 dprintk(FE_DEBUG, 1, "No Signal");
2324         } else {
2325                 no_signal = 0;
2326                 dprintk(FE_DEBUG, 1, "Found Signal");
2327         }
2328
2329         return no_signal;
2330 }
2331
2332 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2333 {
2334         int no_signal, lock = 0;
2335         s32 cpt_step = 0, offst_freq, car_max;
2336         u32 reg;
2337
2338         car_max  = state->search_range / 1000;
2339         car_max += (car_max / 10);
2340         car_max  = (65536 * car_max / 2);
2341         car_max /= (state->internal->mclk / 1000);
2342         if (car_max > 0x4000)
2343                 car_max = 0x4000;
2344
2345         if (zigzag)
2346                 offst_freq = 0;
2347         else
2348                 offst_freq = -car_max + inc;
2349
2350         do {
2351                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2352                         goto err;
2353                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2354                         goto err;
2355                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2356                         goto err;
2357                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2358                         goto err;
2359
2360                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2361                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2362                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2363                         goto err;
2364
2365                 if (zigzag) {
2366                         if (offst_freq >= 0)
2367                                 offst_freq = -offst_freq - 2 * inc;
2368                         else
2369                                 offst_freq = -offst_freq;
2370                 } else {
2371                         offst_freq += 2 * inc;
2372                 }
2373
2374                 cpt_step++;
2375
2376                 lock = stv090x_get_dmdlock(state, timeout);
2377                 no_signal = stv090x_chk_signal(state);
2378
2379         } while ((!lock) &&
2380                  (!no_signal) &&
2381                   ((offst_freq - inc) < car_max) &&
2382                   ((offst_freq + inc) > -car_max) &&
2383                   (cpt_step < steps_max));
2384
2385         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2386         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2387         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2388                         goto err;
2389
2390         return lock;
2391 err:
2392         dprintk(FE_ERROR, 1, "I/O error");
2393         return -1;
2394 }
2395
2396 static int stv090x_sw_algo(struct stv090x_state *state)
2397 {
2398         int no_signal, zigzag, lock = 0;
2399         u32 reg;
2400
2401         s32 dvbs2_fly_wheel;
2402         s32 inc, timeout_step, trials, steps_max;
2403
2404         /* get params */
2405         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2406
2407         switch (state->search_mode) {
2408         case STV090x_SEARCH_DVBS1:
2409         case STV090x_SEARCH_DSS:
2410                 /* accelerate the frequency detector */
2411                 if (state->internal->dev_ver >= 0x20) {
2412                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2413                                 goto err;
2414                 }
2415
2416                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2417                         goto err;
2418                 zigzag = 0;
2419                 break;
2420
2421         case STV090x_SEARCH_DVBS2:
2422                 if (state->internal->dev_ver >= 0x20) {
2423                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2424                                 goto err;
2425                 }
2426
2427                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2428                         goto err;
2429                 zigzag = 1;
2430                 break;
2431
2432         case STV090x_SEARCH_AUTO:
2433         default:
2434                 /* accelerate the frequency detector */
2435                 if (state->internal->dev_ver >= 0x20) {
2436                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2437                                 goto err;
2438                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2439                                 goto err;
2440                 }
2441
2442                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2443                         goto err;
2444                 zigzag = 0;
2445                 break;
2446         }
2447
2448         trials = 0;
2449         do {
2450                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2451                 no_signal = stv090x_chk_signal(state);
2452                 trials++;
2453
2454                 /*run the SW search 2 times maximum*/
2455                 if (lock || no_signal || (trials == 2)) {
2456                         /*Check if the demod is not losing lock in DVBS2*/
2457                         if (state->internal->dev_ver >= 0x20) {
2458                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2459                                         goto err;
2460                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2461                                         goto err;
2462                         }
2463
2464                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2465                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2466                                 /*Check if the demod is not losing lock in DVBS2*/
2467                                 msleep(timeout_step);
2468                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2469                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2470                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2471                                         msleep(timeout_step);
2472                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2473                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2474                                 }
2475                                 if (dvbs2_fly_wheel < 0xd) {
2476                                         /*FALSE lock, The demod is losing lock */
2477                                         lock = 0;
2478                                         if (trials < 2) {
2479                                                 if (state->internal->dev_ver >= 0x20) {
2480                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2481                                                                 goto err;
2482                                                 }
2483
2484                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2485                                                         goto err;
2486                                         }
2487                                 }
2488                         }
2489                 }
2490         } while ((!lock) && (trials < 2) && (!no_signal));
2491
2492         return lock;
2493 err:
2494         dprintk(FE_ERROR, 1, "I/O error");
2495         return -1;
2496 }
2497
2498 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2499 {
2500         u32 reg;
2501         enum stv090x_delsys delsys;
2502
2503         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2504         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2505                 delsys = STV090x_DVBS2;
2506         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2507                 reg = STV090x_READ_DEMOD(state, FECM);
2508                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2509                         delsys = STV090x_DSS;
2510                 else
2511                         delsys = STV090x_DVBS1;
2512         } else {
2513                 delsys = STV090x_ERROR;
2514         }
2515
2516         return delsys;
2517 }
2518
2519 /* in Hz */
2520 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2521 {
2522         s32 derot, int_1, int_2, tmp_1, tmp_2;
2523
2524         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2525         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2526         derot |= STV090x_READ_DEMOD(state, CFR0);
2527
2528         derot = comp2(derot, 24);
2529         int_1 = mclk >> 12;
2530         int_2 = derot >> 12;
2531
2532         /* carrier_frequency = MasterClock * Reg / 2^24 */
2533         tmp_1 = mclk % 0x1000;
2534         tmp_2 = derot % 0x1000;
2535
2536         derot = (int_1 * int_2) +
2537                 ((int_1 * tmp_2) >> 12) +
2538                 ((int_2 * tmp_1) >> 12);
2539
2540         return derot;
2541 }
2542
2543 static int stv090x_get_viterbi(struct stv090x_state *state)
2544 {
2545         u32 reg, rate;
2546
2547         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2548         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2549
2550         switch (rate) {
2551         case 13:
2552                 state->fec = STV090x_PR12;
2553                 break;
2554
2555         case 18:
2556                 state->fec = STV090x_PR23;
2557                 break;
2558
2559         case 21:
2560                 state->fec = STV090x_PR34;
2561                 break;
2562
2563         case 24:
2564                 state->fec = STV090x_PR56;
2565                 break;
2566
2567         case 25:
2568                 state->fec = STV090x_PR67;
2569                 break;
2570
2571         case 26:
2572                 state->fec = STV090x_PR78;
2573                 break;
2574
2575         default:
2576                 state->fec = STV090x_PRERR;
2577                 break;
2578         }
2579
2580         return 0;
2581 }
2582
2583 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2584 {
2585         struct dvb_frontend *fe = &state->frontend;
2586
2587         u8 tmg;
2588         u32 reg;
2589         s32 i = 0, offst_freq;
2590
2591         msleep(5);
2592
2593         if (state->algo == STV090x_BLIND_SEARCH) {
2594                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2595                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2596                 while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2597                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2598                         msleep(5);
2599                         i += 5;
2600                 }
2601         }
2602         state->delsys = stv090x_get_std(state);
2603
2604         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2605                 goto err;
2606
2607         if (state->config->tuner_get_frequency) {
2608                 if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2609                         goto err_gateoff;
2610         }
2611
2612         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2613                 goto err;
2614
2615         offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2616         state->frequency += offst_freq;
2617
2618         if (stv090x_get_viterbi(state) < 0)
2619                 goto err;
2620
2621         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2622         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2623         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2624         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2625         reg = STV090x_READ_DEMOD(state, TMGOBS);
2626         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2627         reg = STV090x_READ_DEMOD(state, FECM);
2628         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2629
2630         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2631
2632                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2633                         goto err;
2634
2635                 if (state->config->tuner_get_frequency) {
2636                         if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2637                                 goto err_gateoff;
2638                 }
2639
2640                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2641                         goto err;
2642
2643                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2644                         return STV090x_RANGEOK;
2645                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2646                         return STV090x_RANGEOK;
2647         } else {
2648                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2649                         return STV090x_RANGEOK;
2650         }
2651
2652         return STV090x_OUTOFRANGE;
2653
2654 err_gateoff:
2655         stv090x_i2c_gate_ctrl(state, 0);
2656 err:
2657         dprintk(FE_ERROR, 1, "I/O error");
2658         return -1;
2659 }
2660
2661 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2662 {
2663         s32 offst_tmg;
2664
2665         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2666         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2667         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2668
2669         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2670         if (!offst_tmg)
2671                 offst_tmg = 1;
2672
2673         offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2674         offst_tmg /= 320;
2675
2676         return offst_tmg;
2677 }
2678
2679 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2680 {
2681         u8 aclc = 0x29;
2682         s32 i;
2683         struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2684
2685         if (state->internal->dev_ver == 0x20) {
2686                 car_loop                = stv090x_s2_crl_cut20;
2687                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2688                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2689         } else {
2690                 /* >= Cut 3 */
2691                 car_loop                = stv090x_s2_crl_cut30;
2692                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2693                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2694         }
2695
2696         if (modcod < STV090x_QPSK_12) {
2697                 i = 0;
2698                 while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2699                         i++;
2700
2701                 if (i >= 3)
2702                         i = 2;
2703
2704         } else {
2705                 i = 0;
2706                 while ((i < 14) && (modcod != car_loop[i].modcod))
2707                         i++;
2708
2709                 if (i >= 14) {
2710                         i = 0;
2711                         while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2712                                 i++;
2713
2714                         if (i >= 11)
2715                                 i = 10;
2716                 }
2717         }
2718
2719         if (modcod <= STV090x_QPSK_25) {
2720                 if (pilots) {
2721                         if (state->srate <= 3000000)
2722                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2723                         else if (state->srate <= 7000000)
2724                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2725                         else if (state->srate <= 15000000)
2726                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2727                         else if (state->srate <= 25000000)
2728                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2729                         else
2730                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2731                 } else {
2732                         if (state->srate <= 3000000)
2733                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2734                         else if (state->srate <= 7000000)
2735                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2736                         else if (state->srate <= 15000000)
2737                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2738                         else if (state->srate <= 25000000)
2739                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2740                         else
2741                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2742                 }
2743
2744         } else if (modcod <= STV090x_8PSK_910) {
2745                 if (pilots) {
2746                         if (state->srate <= 3000000)
2747                                 aclc = car_loop[i].crl_pilots_on_2;
2748                         else if (state->srate <= 7000000)
2749                                 aclc = car_loop[i].crl_pilots_on_5;
2750                         else if (state->srate <= 15000000)
2751                                 aclc = car_loop[i].crl_pilots_on_10;
2752                         else if (state->srate <= 25000000)
2753                                 aclc = car_loop[i].crl_pilots_on_20;
2754                         else
2755                                 aclc = car_loop[i].crl_pilots_on_30;
2756                 } else {
2757                         if (state->srate <= 3000000)
2758                                 aclc = car_loop[i].crl_pilots_off_2;
2759                         else if (state->srate <= 7000000)
2760                                 aclc = car_loop[i].crl_pilots_off_5;
2761                         else if (state->srate <= 15000000)
2762                                 aclc = car_loop[i].crl_pilots_off_10;
2763                         else if (state->srate <= 25000000)
2764                                 aclc = car_loop[i].crl_pilots_off_20;
2765                         else
2766                                 aclc = car_loop[i].crl_pilots_off_30;
2767                 }
2768         } else { /* 16APSK and 32APSK */
2769                 /*
2770                  * This should never happen in practice, except if
2771                  * something is really wrong at the car_loop table.
2772                  */
2773                 if (i >= 11)
2774                         i = 10;
2775                 if (state->srate <= 3000000)
2776                         aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2777                 else if (state->srate <= 7000000)
2778                         aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2779                 else if (state->srate <= 15000000)
2780                         aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2781                 else if (state->srate <= 25000000)
2782                         aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2783                 else
2784                         aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2785         }
2786
2787         return aclc;
2788 }
2789
2790 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2791 {
2792         struct stv090x_short_frame_crloop *short_crl = NULL;
2793         s32 index = 0;
2794         u8 aclc = 0x0b;
2795
2796         switch (state->modulation) {
2797         case STV090x_QPSK:
2798         default:
2799                 index = 0;
2800                 break;
2801         case STV090x_8PSK:
2802                 index = 1;
2803                 break;
2804         case STV090x_16APSK:
2805                 index = 2;
2806                 break;
2807         case STV090x_32APSK:
2808                 index = 3;
2809                 break;
2810         }
2811
2812         if (state->internal->dev_ver >= 0x30) {
2813                 /* Cut 3.0 and up */
2814                 short_crl = stv090x_s2_short_crl_cut30;
2815         } else {
2816                 /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2817                 short_crl = stv090x_s2_short_crl_cut20;
2818         }
2819
2820         if (state->srate <= 3000000)
2821                 aclc = short_crl[index].crl_2;
2822         else if (state->srate <= 7000000)
2823                 aclc = short_crl[index].crl_5;
2824         else if (state->srate <= 15000000)
2825                 aclc = short_crl[index].crl_10;
2826         else if (state->srate <= 25000000)
2827                 aclc = short_crl[index].crl_20;
2828         else
2829                 aclc = short_crl[index].crl_30;
2830
2831         return aclc;
2832 }
2833
2834 static int stv090x_optimize_track(struct stv090x_state *state)
2835 {
2836         struct dvb_frontend *fe = &state->frontend;
2837
2838         enum stv090x_modcod modcod;
2839
2840         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2841         u32 reg;
2842
2843         srate  = stv090x_get_srate(state, state->internal->mclk);
2844         srate += stv090x_get_tmgoffst(state, srate);
2845
2846         switch (state->delsys) {
2847         case STV090x_DVBS1:
2848         case STV090x_DSS:
2849                 if (state->search_mode == STV090x_SEARCH_AUTO) {
2850                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2851                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2852                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2853                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2854                                 goto err;
2855                 }
2856                 reg = STV090x_READ_DEMOD(state, DEMOD);
2857                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2858                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2859                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2860                         goto err;
2861
2862                 if (state->internal->dev_ver >= 0x30) {
2863                         if (stv090x_get_viterbi(state) < 0)
2864                                 goto err;
2865
2866                         if (state->fec == STV090x_PR12) {
2867                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2868                                         goto err;
2869                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2870                                         goto err;
2871                         } else {
2872                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2873                                         goto err;
2874                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2875                                         goto err;
2876                         }
2877                 }
2878
2879                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2880                         goto err;
2881                 break;
2882
2883         case STV090x_DVBS2:
2884                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2885                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2886                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2887                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2888                         goto err;
2889                 if (state->internal->dev_ver >= 0x30) {
2890                         if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2891                                 goto err;
2892                         if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2893                                 goto err;
2894                 }
2895                 if (state->frame_len == STV090x_LONG_FRAME) {
2896                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2897                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2898                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2899                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2900                         if (modcod <= STV090x_QPSK_910) {
2901                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2902                         } else if (modcod <= STV090x_8PSK_910) {
2903                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2904                                         goto err;
2905                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2906                                         goto err;
2907                         }
2908                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2909                                 if (modcod <= STV090x_16APSK_910) {
2910                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2911                                                 goto err;
2912                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2913                                                 goto err;
2914                                 } else {
2915                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2916                                                 goto err;
2917                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2918                                                 goto err;
2919                                 }
2920                         }
2921                 } else {
2922                         /*Carrier loop setting for short frame*/
2923                         aclc = stv090x_optimize_carloop_short(state);
2924                         if (state->modulation == STV090x_QPSK) {
2925                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2926                                         goto err;
2927                         } else if (state->modulation == STV090x_8PSK) {
2928                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2929                                         goto err;
2930                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2931                                         goto err;
2932                         } else if (state->modulation == STV090x_16APSK) {
2933                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2934                                         goto err;
2935                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2936                                         goto err;
2937                         } else if (state->modulation == STV090x_32APSK)  {
2938                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2939                                         goto err;
2940                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2941                                         goto err;
2942                         }
2943                 }
2944
2945                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2946                 break;
2947
2948         case STV090x_ERROR:
2949         default:
2950                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2951                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2952                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2953                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2954                         goto err;
2955                 break;
2956         }
2957
2958         f_1 = STV090x_READ_DEMOD(state, CFR2);
2959         f_0 = STV090x_READ_DEMOD(state, CFR1);
2960         reg = STV090x_READ_DEMOD(state, TMGOBS);
2961
2962         if (state->algo == STV090x_BLIND_SEARCH) {
2963                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2964                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2965                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2966                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2967                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2968                         goto err;
2969                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2970                         goto err;
2971
2972                 if (stv090x_set_srate(state, srate) < 0)
2973                         goto err;
2974                 blind_tune = 1;
2975
2976                 if (stv090x_dvbs_track_crl(state) < 0)
2977                         goto err;
2978         }
2979
2980         if (state->internal->dev_ver >= 0x20) {
2981                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2982                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2983                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2984
2985                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2986                                 goto err;
2987                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2988                                 goto err;
2989                 }
2990         }
2991
2992         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2993                 goto err;
2994
2995         /* AUTO tracking MODE */
2996         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
2997                 goto err;
2998         /* AUTO tracking MODE */
2999         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3000                 goto err;
3001
3002         if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3003             (state->srate < 10000000)) {
3004                 /* update initial carrier freq with the found freq offset */
3005                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3006                         goto err;
3007                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3008                         goto err;
3009                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3010
3011                 if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3012
3013                         if (state->algo != STV090x_WARM_SEARCH) {
3014
3015                                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3016                                         goto err;
3017
3018                                 if (state->config->tuner_set_bandwidth) {
3019                                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3020                                                 goto err_gateoff;
3021                                 }
3022
3023                                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3024                                         goto err;
3025
3026                         }
3027                 }
3028                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3029                         msleep(50); /* blind search: wait 50ms for SR stabilization */
3030                 else
3031                         msleep(5);
3032
3033                 stv090x_get_lock_tmg(state);
3034
3035                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3036                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3037                                 goto err;
3038                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3039                                 goto err;
3040                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3041                                 goto err;
3042                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3043                                 goto err;
3044
3045                         i = 0;
3046
3047                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3048
3049                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3050                                         goto err;
3051                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3052                                         goto err;
3053                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3054                                         goto err;
3055                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3056                                         goto err;
3057                                 i++;
3058                         }
3059                 }
3060
3061         }
3062
3063         if (state->internal->dev_ver >= 0x20) {
3064                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3065                         goto err;
3066         }
3067
3068         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3069                 stv090x_set_vit_thtracq(state);
3070
3071         return 0;
3072
3073 err_gateoff:
3074         stv090x_i2c_gate_ctrl(state, 0);
3075 err:
3076         dprintk(FE_ERROR, 1, "I/O error");
3077         return -1;
3078 }
3079
3080 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3081 {
3082         s32 timer = 0, lock = 0, stat;
3083         u32 reg;
3084
3085         while ((timer < timeout) && (!lock)) {
3086                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
3087                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3088
3089                 switch (stat) {
3090                 case 0: /* searching */
3091                 case 1: /* first PLH detected */
3092                 default:
3093                         lock = 0;
3094                         break;
3095
3096                 case 2: /* DVB-S2 mode */
3097                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3098                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3099                         break;
3100
3101                 case 3: /* DVB-S1/legacy mode */
3102                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3103                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3104                         break;
3105                 }
3106                 if (!lock) {
3107                         msleep(10);
3108                         timer += 10;
3109                 }
3110         }
3111         return lock;
3112 }
3113
3114 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3115 {
3116         u32 reg;
3117         s32 timer = 0;
3118         int lock;
3119
3120         lock = stv090x_get_dmdlock(state, timeout_dmd);
3121         if (lock)
3122                 lock = stv090x_get_feclock(state, timeout_fec);
3123
3124         if (lock) {
3125                 lock = 0;
3126
3127                 while ((timer < timeout_fec) && (!lock)) {
3128                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3129                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3130                         msleep(1);
3131                         timer++;
3132                 }
3133         }
3134
3135         return lock;
3136 }
3137
3138 static int stv090x_set_s2rolloff(struct stv090x_state *state)
3139 {
3140         u32 reg;
3141
3142         if (state->internal->dev_ver <= 0x20) {
3143                 /* rolloff to auto mode if DVBS2 */
3144                 reg = STV090x_READ_DEMOD(state, DEMOD);
3145                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3146                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3147                         goto err;
3148         } else {
3149                 /* DVB-S2 rolloff to auto mode if DVBS2 */
3150                 reg = STV090x_READ_DEMOD(state, DEMOD);
3151                 STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3152                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3153                         goto err;
3154         }
3155         return 0;
3156 err:
3157         dprintk(FE_ERROR, 1, "I/O error");
3158         return -1;
3159 }
3160
3161
3162 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3163 {
3164         struct dvb_frontend *fe = &state->frontend;
3165         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3166         u32 reg;
3167         s32 agc1_power, power_iq = 0, i;
3168         int lock = 0, low_sr = 0;
3169
3170         reg = STV090x_READ_DEMOD(state, TSCFGH);
3171         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3172         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3173                 goto err;
3174
3175         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3176                 goto err;
3177
3178         if (state->internal->dev_ver >= 0x20) {
3179                 if (state->srate > 5000000) {
3180                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3181                                 goto err;
3182                 } else {
3183                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3184                                 goto err;
3185                 }
3186         }
3187
3188         stv090x_get_lock_tmg(state);
3189
3190         if (state->algo == STV090x_BLIND_SEARCH) {
3191                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3192                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3193                         goto err;
3194                 if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3195                         goto err;
3196                 if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3197                         goto err;
3198         } else {
3199                 /* known srate */
3200                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3201                         goto err;
3202                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3203                         goto err;
3204
3205                 if (state->srate < 2000000) {
3206                         /* SR < 2MSPS */
3207                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3208                                 goto err;
3209                 } else {
3210                         /* SR >= 2Msps */
3211                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3212                                 goto err;
3213                 }
3214
3215                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3216                         goto err;
3217
3218                 if (state->internal->dev_ver >= 0x20) {
3219                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3220                                 goto err;
3221                         if (state->algo == STV090x_COLD_SEARCH)
3222                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3223                         else if (state->algo == STV090x_WARM_SEARCH)
3224                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3225                 }
3226
3227                 /* if cold start or warm  (Symbolrate is known)
3228                  * use a Narrow symbol rate scan range
3229                  */
3230                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3231                         goto err;
3232
3233                 if (stv090x_set_srate(state, state->srate) < 0)
3234                         goto err;
3235
3236                 if (stv090x_set_max_srate(state, state->internal->mclk,
3237                                           state->srate) < 0)
3238                         goto err;
3239                 if (stv090x_set_min_srate(state, state->internal->mclk,
3240                                           state->srate) < 0)
3241                         goto err;
3242
3243                 if (state->srate >= 10000000)
3244                         low_sr = 0;
3245                 else
3246                         low_sr = 1;
3247         }
3248
3249         /* Setup tuner */
3250         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3251                 goto err;
3252
3253         if (state->config->tuner_set_bbgain) {
3254                 reg = state->config->tuner_bbgain;
3255                 if (reg == 0)
3256                         reg = 10; /* default: 10dB */
3257                 if (state->config->tuner_set_bbgain(fe, reg) < 0)
3258                         goto err_gateoff;
3259         }
3260
3261         if (state->config->tuner_set_frequency) {
3262                 if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3263                         goto err_gateoff;
3264         }
3265
3266         if (state->config->tuner_set_bandwidth) {
3267                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3268                         goto err_gateoff;
3269         }
3270
3271         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3272                 goto err;
3273
3274         msleep(50);
3275
3276         if (state->config->tuner_get_status) {
3277                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3278                         goto err;
3279                 if (state->config->tuner_get_status(fe, &reg) < 0)
3280                         goto err_gateoff;
3281                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3282                         goto err;
3283
3284                 if (reg)
3285                         dprintk(FE_DEBUG, 1, "Tuner phase locked");
3286                 else {
3287                         dprintk(FE_DEBUG, 1, "Tuner unlocked");
3288                         return STV090x_NOCARRIER;
3289                 }
3290         }
3291
3292         msleep(10);
3293         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3294                                 STV090x_READ_DEMOD(state, AGCIQIN0));
3295
3296         if (agc1_power == 0) {
3297                 /* If AGC1 integrator value is 0
3298                  * then read POWERI, POWERQ
3299                  */
3300                 for (i = 0; i < 5; i++) {
3301                         power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3302                                      STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3303                 }
3304                 power_iq /= 5;
3305         }
3306
3307         if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3308                 dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3309                 lock = 0;
3310                 signal_state = STV090x_NOAGC1;
3311         } else {
3312                 reg = STV090x_READ_DEMOD(state, DEMOD);
3313                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3314
3315                 if (state->internal->dev_ver <= 0x20) {
3316                         /* rolloff to auto mode if DVBS2 */
3317                         STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3318                 } else {
3319                         /* DVB-S2 rolloff to auto mode if DVBS2 */
3320                         STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3321                 }
3322                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3323                         goto err;
3324
3325                 if (stv090x_delivery_search(state) < 0)
3326                         goto err;
3327
3328                 if (state->algo != STV090x_BLIND_SEARCH) {
3329                         if (stv090x_start_search(state) < 0)
3330                                 goto err;
3331                 }
3332         }
3333
3334         if (signal_state == STV090x_NOAGC1)
3335                 return signal_state;
3336
3337         if (state->algo == STV090x_BLIND_SEARCH)
3338                 lock = stv090x_blind_search(state);
3339
3340         else if (state->algo == STV090x_COLD_SEARCH)
3341                 lock = stv090x_get_coldlock(state, state->DemodTimeout);
3342
3343         else if (state->algo == STV090x_WARM_SEARCH)
3344                 lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3345
3346         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3347                 if (!low_sr) {
3348                         if (stv090x_chk_tmg(state))
3349                                 lock = stv090x_sw_algo(state);
3350                 }
3351         }
3352
3353         if (lock)
3354                 signal_state = stv090x_get_sig_params(state);
3355
3356         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3357                 stv090x_optimize_track(state);
3358
3359                 if (state->internal->dev_ver >= 0x20) {
3360                         /* >= Cut 2.0 :release TS reset after
3361                          * demod lock and optimized Tracking
3362                          */
3363                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3364                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3365                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3366                                 goto err;
3367
3368                         msleep(3);
3369
3370                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3371                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3372                                 goto err;
3373
3374                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3375                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3376                                 goto err;
3377                 }
3378
3379                 lock = stv090x_get_lock(state, state->FecTimeout,
3380                                 state->FecTimeout);
3381                 if (lock) {
3382                         if (state->delsys == STV090x_DVBS2) {
3383                                 stv090x_set_s2rolloff(state);
3384
3385                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3386                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3387                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3388                                         goto err;
3389                                 /* Reset DVBS2 packet delinator error counter */
3390                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3391                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3392                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3393                                         goto err;
3394
3395                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3396                                         goto err;
3397                         } else {
3398                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3399                                         goto err;
3400                         }
3401                         /* Reset the Total packet counter */
3402                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3403                                 goto err;
3404                         /* Reset the packet Error counter2 */
3405                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3406                                 goto err;
3407                 } else {
3408                         signal_state = STV090x_NODATA;
3409                         stv090x_chk_signal(state);
3410                 }
3411         }
3412         return signal_state;
3413
3414 err_gateoff:
3415         stv090x_i2c_gate_ctrl(state, 0);
3416 err:
3417         dprintk(FE_ERROR, 1, "I/O error");
3418         return -1;
3419 }
3420
3421 static int stv090x_set_pls(struct stv090x_state *state, u32 pls_code)
3422 {
3423         dprintk(FE_DEBUG, 1, "Set Gold PLS code %d", pls_code);
3424         if (STV090x_WRITE_DEMOD(state, PLROOT0, pls_code & 0xff) < 0)
3425                 goto err;
3426         if (STV090x_WRITE_DEMOD(state, PLROOT1, (pls_code >> 8) & 0xff) < 0)
3427                 goto err;
3428         if (STV090x_WRITE_DEMOD(state, PLROOT2, 0x04 | (pls_code >> 16)) < 0)
3429                 goto err;
3430         return 0;
3431 err:
3432         dprintk(FE_ERROR, 1, "I/O error");
3433         return -1;
3434 }
3435
3436 static int stv090x_set_mis(struct stv090x_state *state, int mis)
3437 {
3438         u32 reg;
3439
3440         if (mis < 0 || mis > 255) {
3441                 dprintk(FE_DEBUG, 1, "Disable MIS filtering");
3442                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3443                 STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x00);
3444                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3445                         goto err;
3446         } else {
3447                 dprintk(FE_DEBUG, 1, "Enable MIS filtering - %d", mis);
3448                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3449                 STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x01);
3450                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3451                         goto err;
3452                 if (STV090x_WRITE_DEMOD(state, ISIENTRY, mis) < 0)
3453                         goto err;
3454                 if (STV090x_WRITE_DEMOD(state, ISIBITENA, 0xff) < 0)
3455                         goto err;
3456         }
3457         return 0;
3458 err:
3459         dprintk(FE_ERROR, 1, "I/O error");
3460         return -1;
3461 }
3462
3463 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe)
3464 {
3465         struct stv090x_state *state = fe->demodulator_priv;
3466         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3467
3468         if (props->frequency == 0)
3469                 return DVBFE_ALGO_SEARCH_INVALID;
3470
3471         switch (props->delivery_system) {
3472         case SYS_DSS:
3473                 state->delsys = STV090x_DSS;
3474                 break;
3475         case SYS_DVBS:
3476                 state->delsys = STV090x_DVBS1;
3477                 break;
3478         case SYS_DVBS2:
3479                 state->delsys = STV090x_DVBS2;
3480                 break;
3481         default:
3482                 return DVBFE_ALGO_SEARCH_INVALID;
3483         }
3484
3485         state->frequency = props->frequency;
3486         state->srate = props->symbol_rate;
3487         state->search_mode = STV090x_SEARCH_AUTO;
3488         state->algo = STV090x_COLD_SEARCH;
3489         state->fec = STV090x_PRERR;
3490         if (state->srate > 10000000) {
3491                 dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3492                 state->search_range = 10000000;
3493         } else {
3494                 dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3495                 state->search_range = 5000000;
3496         }
3497
3498         stv090x_set_pls(state, props->scrambling_sequence_index);
3499         stv090x_set_mis(state, props->stream_id);
3500
3501         if (stv090x_algo(state) == STV090x_RANGEOK) {
3502                 dprintk(FE_DEBUG, 1, "Search success!");
3503                 return DVBFE_ALGO_SEARCH_SUCCESS;
3504         } else {
3505                 dprintk(FE_DEBUG, 1, "Search failed!");
3506                 return DVBFE_ALGO_SEARCH_FAILED;
3507         }
3508
3509         return DVBFE_ALGO_SEARCH_ERROR;
3510 }
3511
3512 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3513 {
3514         struct stv090x_state *state = fe->demodulator_priv;
3515         u32 reg, dstatus;
3516         u8 search_state;
3517
3518         *status = 0;
3519
3520         dstatus = STV090x_READ_DEMOD(state, DSTATUS);
3521         if (STV090x_GETFIELD_Px(dstatus, CAR_LOCK_FIELD))
3522                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
3523
3524         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3525         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3526
3527         switch (search_state) {
3528         case 0: /* searching */
3529         case 1: /* first PLH detected */
3530         default:
3531                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3532                 break;
3533
3534         case 2: /* DVB-S2 mode */
3535                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3536                 if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3537                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3538                         if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3539                                 *status |= FE_HAS_VITERBI;
3540                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3541                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3542                                         *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3543                         }
3544                 }
3545                 break;
3546
3547         case 3: /* DVB-S1/legacy mode */
3548                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3549                 if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3550                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3551                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3552                                 *status |= FE_HAS_VITERBI;
3553                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3554                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3555                                         *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3556                         }
3557                 }
3558                 break;
3559         }
3560
3561         return 0;
3562 }
3563
3564 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3565 {
3566         struct stv090x_state *state = fe->demodulator_priv;
3567
3568         s32 count_4, count_3, count_2, count_1, count_0, count;
3569         u32 reg, h, m, l;
3570         enum fe_status status;
3571
3572         stv090x_read_status(fe, &status);
3573         if (!(status & FE_HAS_LOCK)) {
3574                 *per = 1 << 23; /* Max PER */
3575         } else {
3576                 /* Counter 2 */
3577                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3578                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3579
3580                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3581                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3582
3583                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3584                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3585
3586                 *per = ((h << 16) | (m << 8) | l);
3587
3588                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3589                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3590                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3591                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3592                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3593
3594                 if ((!count_4) && (!count_3)) {
3595                         count  = (count_2 & 0xff) << 16;
3596                         count |= (count_1 & 0xff) <<  8;
3597                         count |=  count_0 & 0xff;
3598                 } else {
3599                         count = 1 << 24;
3600                 }
3601                 if (count == 0)
3602                         *per = 1;
3603         }
3604         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3605                 goto err;
3606         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3607                 goto err;
3608
3609         return 0;
3610 err:
3611         dprintk(FE_ERROR, 1, "I/O error");
3612         return -1;
3613 }
3614
3615 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3616 {
3617         int res = 0;
3618         int min = 0, med;
3619
3620         if ((val >= tab[min].read && val < tab[max].read) ||
3621             (val >= tab[max].read && val < tab[min].read)) {
3622                 while ((max - min) > 1) {
3623                         med = (max + min) / 2;
3624                         if ((val >= tab[min].read && val < tab[med].read) ||
3625                             (val >= tab[med].read && val < tab[min].read))
3626                                 max = med;
3627                         else
3628                                 min = med;
3629                 }
3630                 res = ((val - tab[min].read) *
3631                        (tab[max].real - tab[min].real) /
3632                        (tab[max].read - tab[min].read)) +
3633                         tab[min].real;
3634         } else {
3635                 if (tab[min].read < tab[max].read) {
3636                         if (val < tab[min].read)
3637                                 res = tab[min].real;
3638                         else if (val >= tab[max].read)
3639                                 res = tab[max].real;
3640                 } else {
3641                         if (val >= tab[min].read)
3642                                 res = tab[min].real;
3643                         else if (val < tab[max].read)
3644                                 res = tab[max].real;
3645                 }
3646         }
3647
3648         return res;
3649 }
3650
3651 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3652 {
3653         struct stv090x_state *state = fe->demodulator_priv;
3654         u32 reg;
3655         s32 agc_0, agc_1, agc;
3656         s32 str;
3657
3658         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3659         agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3660         reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3661         agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3662         agc = MAKEWORD16(agc_1, agc_0);
3663
3664         str = stv090x_table_lookup(stv090x_rf_tab,
3665                 ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3666         if (agc > stv090x_rf_tab[0].read)
3667                 str = 0;
3668         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3669                 str = -100;
3670         *strength = (str + 100) * 0xFFFF / 100;
3671
3672         return 0;
3673 }
3674
3675 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3676 {
3677         struct stv090x_state *state = fe->demodulator_priv;
3678         u32 reg_0, reg_1, reg, i;
3679         s32 val_0, val_1, val = 0;
3680         u8 lock_f;
3681         s32 div;
3682         u32 last;
3683
3684         switch (state->delsys) {
3685         case STV090x_DVBS2:
3686                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3687                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3688                 if (lock_f) {
3689                         msleep(5);
3690                         for (i = 0; i < 16; i++) {
3691                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3692                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3693                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3694                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3695                                 val  += MAKEWORD16(val_1, val_0);
3696                                 msleep(1);
3697                         }
3698                         val /= 16;
3699                         last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3700                         div = stv090x_s2cn_tab[last].real -
3701                               stv090x_s2cn_tab[3].real;
3702                         val = stv090x_table_lookup(stv090x_s2cn_tab, last, val);
3703                         if (val < 0)
3704                                 val = 0;
3705                         *cnr = val * 0xFFFF / div;
3706                 }
3707                 break;
3708
3709         case STV090x_DVBS1:
3710         case STV090x_DSS:
3711                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3712                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3713                 if (lock_f) {
3714                         msleep(5);
3715                         for (i = 0; i < 16; i++) {
3716                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3717                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3718                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3719                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3720                                 val  += MAKEWORD16(val_1, val_0);
3721                                 msleep(1);
3722                         }
3723                         val /= 16;
3724                         last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3725                         div = stv090x_s1cn_tab[last].real -
3726                               stv090x_s1cn_tab[0].real;
3727                         val = stv090x_table_lookup(stv090x_s1cn_tab, last, val);
3728                         *cnr = val * 0xFFFF / div;
3729                 }
3730                 break;
3731         default:
3732                 break;
3733         }
3734
3735         return 0;
3736 }
3737
3738 static int stv090x_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
3739 {
3740         struct stv090x_state *state = fe->demodulator_priv;
3741         u32 reg;
3742
3743         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3744         switch (tone) {
3745         case SEC_TONE_ON:
3746                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3747                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3748                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3749                         goto err;
3750                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3751                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3752                         goto err;
3753                 break;
3754
3755         case SEC_TONE_OFF:
3756                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3757                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3758                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3759                         goto err;
3760                 break;
3761         default:
3762                 return -EINVAL;
3763         }
3764
3765         return 0;
3766 err:
3767         dprintk(FE_ERROR, 1, "I/O error");
3768         return -1;
3769 }
3770
3771
3772 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3773 {
3774         return DVBFE_ALGO_CUSTOM;
3775 }
3776
3777 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3778 {
3779         struct stv090x_state *state = fe->demodulator_priv;
3780         u32 reg, idle = 0, fifo_full = 1;
3781         int i;
3782
3783         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3784
3785         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3786                 (state->config->diseqc_envelope_mode) ? 4 : 2);
3787         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3788         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3789                 goto err;
3790         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3791         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3792                 goto err;
3793
3794         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3795         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3796                 goto err;
3797
3798         for (i = 0; i < cmd->msg_len; i++) {
3799
3800                 while (fifo_full) {
3801                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3802                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3803                 }
3804
3805                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3806                         goto err;
3807         }
3808         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3809         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3810         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3811                 goto err;
3812
3813         i = 0;
3814
3815         while ((!idle) && (i < 10)) {
3816                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3817                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3818                 msleep(10);
3819                 i++;
3820         }
3821
3822         return 0;
3823 err:
3824         dprintk(FE_ERROR, 1, "I/O error");
3825         return -1;
3826 }
3827
3828 static int stv090x_send_diseqc_burst(struct dvb_frontend *fe,
3829                                      enum fe_sec_mini_cmd burst)
3830 {
3831         struct stv090x_state *state = fe->demodulator_priv;
3832         u32 reg, idle = 0, fifo_full = 1;
3833         u8 mode, value;
3834         int i;
3835
3836         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3837
3838         if (burst == SEC_MINI_A) {
3839                 mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3840                 value = 0x00;
3841         } else {
3842                 mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3843                 value = 0xFF;
3844         }
3845
3846         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3847         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3848         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3849                 goto err;
3850         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3851         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3852                 goto err;
3853
3854         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3855         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3856                 goto err;
3857
3858         while (fifo_full) {
3859                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3860                 fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3861         }
3862
3863         if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3864                 goto err;
3865
3866         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3867         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3868         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3869                 goto err;
3870
3871         i = 0;
3872
3873         while ((!idle) && (i < 10)) {
3874                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3875                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3876                 msleep(10);
3877                 i++;
3878         }
3879
3880         return 0;
3881 err:
3882         dprintk(FE_ERROR, 1, "I/O error");
3883         return -1;
3884 }
3885
3886 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3887 {
3888         struct stv090x_state *state = fe->demodulator_priv;
3889         u32 reg = 0, i = 0, rx_end = 0;
3890
3891         while ((rx_end != 1) && (i < 10)) {
3892                 msleep(10);
3893                 i++;
3894                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3895                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3896         }
3897
3898         if (rx_end) {
3899                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3900                 for (i = 0; i < reply->msg_len; i++)
3901                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3902         }
3903
3904         return 0;
3905 }
3906
3907 static int stv090x_sleep(struct dvb_frontend *fe)
3908 {
3909         struct stv090x_state *state = fe->demodulator_priv;
3910         u32 reg;
3911         u8 full_standby = 0;
3912
3913         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3914                 goto err;
3915
3916         if (state->config->tuner_sleep) {
3917                 if (state->config->tuner_sleep(fe) < 0)
3918                         goto err_gateoff;
3919         }
3920
3921         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3922                 goto err;
3923
3924         dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3925                 state->device == STV0900 ? "STV0900" : "STV0903",
3926                 state->demod);
3927
3928         mutex_lock(&state->internal->demod_lock);
3929
3930         switch (state->demod) {
3931         case STV090x_DEMODULATOR_0:
3932                 /* power off ADC 1 */
3933                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3934                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3935                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3936                         goto err_unlock;
3937                 /* power off DiSEqC 1 */
3938                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3939                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3940                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3941                         goto err_unlock;
3942
3943                 /* check whether path 2 is already sleeping, that is when
3944                    ADC2 is off */
3945                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3946                 if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3947                         full_standby = 1;
3948
3949                 /* stop clocks */
3950                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3951                 /* packet delineator 1 clock */
3952                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3953                 /* ADC 1 clock */
3954                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3955                 /* FEC clock is shared between the two paths, only stop it
3956                    when full standby is possible */
3957                 if (full_standby)
3958                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3959                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3960                         goto err_unlock;
3961                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3962                 /* sampling 1 clock */
3963                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3964                 /* viterbi 1 clock */
3965                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3966                 /* TS clock is shared between the two paths, only stop it
3967                    when full standby is possible */
3968                 if (full_standby)
3969                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3970                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3971                         goto err_unlock;
3972                 break;
3973
3974         case STV090x_DEMODULATOR_1:
3975                 /* power off ADC 2 */
3976                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3977                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3978                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3979                         goto err_unlock;
3980                 /* power off DiSEqC 2 */
3981                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3982                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3983                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3984                         goto err_unlock;
3985
3986                 /* check whether path 1 is already sleeping, that is when
3987                    ADC1 is off */
3988                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3989                 if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
3990                         full_standby = 1;
3991
3992                 /* stop clocks */
3993                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3994                 /* packet delineator 2 clock */
3995                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
3996                 /* ADC 2 clock */
3997                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
3998                 /* FEC clock is shared between the two paths, only stop it
3999                    when full standby is possible */
4000                 if (full_standby)
4001                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
4002                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4003                         goto err_unlock;
4004                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4005                 /* sampling 2 clock */
4006                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
4007                 /* viterbi 2 clock */
4008                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
4009                 /* TS clock is shared between the two paths, only stop it
4010                    when full standby is possible */
4011                 if (full_standby)
4012                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
4013                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4014                         goto err_unlock;
4015                 break;
4016
4017         default:
4018                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
4019                 break;
4020         }
4021
4022         if (full_standby) {
4023                 /* general power off */
4024                 reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4025                 STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
4026                 if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4027                         goto err_unlock;
4028         }
4029
4030         mutex_unlock(&state->internal->demod_lock);
4031         return 0;
4032
4033 err_gateoff:
4034         stv090x_i2c_gate_ctrl(state, 0);
4035         goto err;
4036 err_unlock:
4037         mutex_unlock(&state->internal->demod_lock);
4038 err:
4039         dprintk(FE_ERROR, 1, "I/O error");
4040         return -1;
4041 }
4042
4043 static int stv090x_wakeup(struct dvb_frontend *fe)
4044 {
4045         struct stv090x_state *state = fe->demodulator_priv;
4046         u32 reg;
4047
4048         dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
4049                 state->device == STV0900 ? "STV0900" : "STV0903",
4050                 state->demod);
4051
4052         mutex_lock(&state->internal->demod_lock);
4053
4054         /* general power on */
4055         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4056         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4057         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4058                 goto err;
4059
4060         switch (state->demod) {
4061         case STV090x_DEMODULATOR_0:
4062                 /* power on ADC 1 */
4063                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4064                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4065                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4066                         goto err;
4067                 /* power on DiSEqC 1 */
4068                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4069                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4070                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4071                         goto err;
4072
4073                 /* activate clocks */
4074                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4075                 /* packet delineator 1 clock */
4076                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4077                 /* ADC 1 clock */
4078                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4079                 /* FEC clock */
4080                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4081                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4082                         goto err;
4083                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4084                 /* sampling 1 clock */
4085                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4086                 /* viterbi 1 clock */
4087                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4088                 /* TS clock */
4089                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4090                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4091                         goto err;
4092                 break;
4093
4094         case STV090x_DEMODULATOR_1:
4095                 /* power on ADC 2 */
4096                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4097                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4098                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4099                         goto err;
4100                 /* power on DiSEqC 2 */
4101                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4102                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4103                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4104                         goto err;
4105
4106                 /* activate clocks */
4107                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4108                 /* packet delineator 2 clock */
4109                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4110                 /* ADC 2 clock */
4111                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4112                 /* FEC clock */
4113                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4114                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4115                         goto err;
4116                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4117                 /* sampling 2 clock */
4118                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4119                 /* viterbi 2 clock */
4120                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4121                 /* TS clock */
4122                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4123                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4124                         goto err;
4125                 break;
4126
4127         default:
4128                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
4129                 break;
4130         }
4131
4132         mutex_unlock(&state->internal->demod_lock);
4133         return 0;
4134 err:
4135         mutex_unlock(&state->internal->demod_lock);
4136         dprintk(FE_ERROR, 1, "I/O error");
4137         return -1;
4138 }
4139
4140 static void stv090x_release(struct dvb_frontend *fe)
4141 {
4142         struct stv090x_state *state = fe->demodulator_priv;
4143
4144         state->internal->num_used--;
4145         if (state->internal->num_used <= 0) {
4146
4147                 dprintk(FE_ERROR, 1, "Actually removing");
4148
4149                 remove_dev(state->internal);
4150                 kfree(state->internal);
4151         }
4152
4153         kfree(state);
4154 }
4155
4156 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4157 {
4158         u32 reg = 0;
4159
4160         reg = stv090x_read_reg(state, STV090x_GENCFG);
4161
4162         switch (ldpc_mode) {
4163         case STV090x_DUAL:
4164         default:
4165                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4166                         /* set LDPC to dual mode */
4167                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4168                                 goto err;
4169
4170                         state->demod_mode = STV090x_DUAL;
4171
4172                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
4173                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4174                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4175                                 goto err;
4176                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4177                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4178                                 goto err;
4179
4180                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4181                                 goto err;
4182                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4183                                 goto err;
4184                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4185                                 goto err;
4186                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4187                                 goto err;
4188                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4189                                 goto err;
4190                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4191                                 goto err;
4192                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4193                                 goto err;
4194
4195                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4196                                 goto err;
4197                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4198                                 goto err;
4199                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4200                                 goto err;
4201                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4202                                 goto err;
4203                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4204                                 goto err;
4205                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4206                                 goto err;
4207                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4208                                 goto err;
4209
4210                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4211                                 goto err;
4212                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4213                                 goto err;
4214                 }
4215                 break;
4216
4217         case STV090x_SINGLE:
4218                 if (stv090x_stop_modcod(state) < 0)
4219                         goto err;
4220                 if (stv090x_activate_modcod_single(state) < 0)
4221                         goto err;
4222
4223                 if (state->demod == STV090x_DEMODULATOR_1) {
4224                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4225                                 goto err;
4226                 } else {
4227                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4228                                 goto err;
4229                 }
4230
4231                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
4232                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4233                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4234                         goto err;
4235                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4236                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4237                         goto err;
4238
4239                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4240                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4241                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4242                         goto err;
4243                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4244                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4245                         goto err;
4246                 break;
4247         }
4248
4249         return 0;
4250 err:
4251         dprintk(FE_ERROR, 1, "I/O error");
4252         return -1;
4253 }
4254
4255 /* return (Hz), clk in Hz*/
4256 static u32 stv090x_get_mclk(struct stv090x_state *state)
4257 {
4258         const struct stv090x_config *config = state->config;
4259         u32 div, reg;
4260         u8 ratio;
4261
4262         div = stv090x_read_reg(state, STV090x_NCOARSE);
4263         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4264         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4265
4266         return (div + 1) * config->xtal / ratio; /* kHz */
4267 }
4268
4269 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4270 {
4271         const struct stv090x_config *config = state->config;
4272         u32 reg, div, clk_sel;
4273
4274         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4275         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4276
4277         div = ((clk_sel * mclk) / config->xtal) - 1;
4278
4279         reg = stv090x_read_reg(state, STV090x_NCOARSE);
4280         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4281         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4282                 goto err;
4283
4284         state->internal->mclk = stv090x_get_mclk(state);
4285
4286         /*Set the DiseqC frequency to 22KHz */
4287         div = state->internal->mclk / 704000;
4288         if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4289                 goto err;
4290         if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4291                 goto err;
4292
4293         return 0;
4294 err:
4295         dprintk(FE_ERROR, 1, "I/O error");
4296         return -1;
4297 }
4298
4299 static int stv0900_set_tspath(struct stv090x_state *state)
4300 {
4301         u32 reg;
4302
4303         if (state->internal->dev_ver >= 0x20) {
4304                 switch (state->config->ts1_mode) {
4305                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4306                 case STV090x_TSMODE_DVBCI:
4307                         switch (state->config->ts2_mode) {
4308                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4309                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4310                         default:
4311                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4312                                 break;
4313
4314                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4315                         case STV090x_TSMODE_DVBCI:
4316                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4317                                         goto err;
4318                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4319                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4320                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4321                                         goto err;
4322                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4323                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4324                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4325                                         goto err;
4326                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4327                                         goto err;
4328                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4329                                         goto err;
4330                                 break;
4331                         }
4332                         break;
4333
4334                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4335                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4336                 default:
4337                         switch (state->config->ts2_mode) {
4338                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4339                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4340                         default:
4341                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4342                                         goto err;
4343                                 break;
4344
4345                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4346                         case STV090x_TSMODE_DVBCI:
4347                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4348                                         goto err;
4349                                 break;
4350                         }
4351                         break;
4352                 }
4353         } else {
4354                 switch (state->config->ts1_mode) {
4355                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4356                 case STV090x_TSMODE_DVBCI:
4357                         switch (state->config->ts2_mode) {
4358                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4359                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4360                         default:
4361                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4362                                 break;
4363
4364                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4365                         case STV090x_TSMODE_DVBCI:
4366                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4367                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4368                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4369                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4370                                         goto err;
4371                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4372                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4373                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4374                                         goto err;
4375                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4376                                         goto err;
4377                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4378                                         goto err;
4379                                 break;
4380                         }
4381                         break;
4382
4383                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4384                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4385                 default:
4386                         switch (state->config->ts2_mode) {
4387                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4388                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4389                         default:
4390                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4391                                 break;
4392
4393                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4394                         case STV090x_TSMODE_DVBCI:
4395                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4396                                 break;
4397                         }
4398                         break;
4399                 }
4400         }
4401
4402         switch (state->config->ts1_mode) {
4403         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4404                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4405                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4406                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4407                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4408                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4409                         goto err;
4410                 break;
4411
4412         case STV090x_TSMODE_DVBCI:
4413                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4414                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4415                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4416                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4417                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4418                         goto err;
4419                 break;
4420
4421         case STV090x_TSMODE_SERIAL_PUNCTURED:
4422                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4423                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4424                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4425                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4426                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4427                         goto err;
4428                 break;
4429
4430         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4431                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4432                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4433                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4434                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4435                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4436                         goto err;
4437                 break;
4438
4439         default:
4440                 break;
4441         }
4442
4443         switch (state->config->ts2_mode) {
4444         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4445                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4446                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4447                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4448                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4449                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4450                         goto err;
4451                 break;
4452
4453         case STV090x_TSMODE_DVBCI:
4454                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4455                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4456                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4457                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4458                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4459                         goto err;
4460                 break;
4461
4462         case STV090x_TSMODE_SERIAL_PUNCTURED:
4463                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4464                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4465                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4466                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4467                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4468                         goto err;
4469                 break;
4470
4471         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4472                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4473                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4474                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4475                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4476                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4477                         goto err;
4478                 break;
4479
4480         default:
4481                 break;
4482         }
4483
4484         if (state->config->ts1_clk > 0) {
4485                 u32 speed;
4486
4487                 switch (state->config->ts1_mode) {
4488                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4489                 case STV090x_TSMODE_DVBCI:
4490                 default:
4491                         speed = state->internal->mclk /
4492                                 (state->config->ts1_clk / 4);
4493                         if (speed < 0x08)
4494                                 speed = 0x08;
4495                         if (speed > 0xFF)
4496                                 speed = 0xFF;
4497                         break;
4498                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4499                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4500                         speed = state->internal->mclk /
4501                                 (state->config->ts1_clk / 32);
4502                         if (speed < 0x20)
4503                                 speed = 0x20;
4504                         if (speed > 0xFF)
4505                                 speed = 0xFF;
4506                         break;
4507                 }
4508                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4509                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4510                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4511                         goto err;
4512                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4513                         goto err;
4514         }
4515
4516         if (state->config->ts2_clk > 0) {
4517                 u32 speed;
4518
4519                 switch (state->config->ts2_mode) {
4520                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4521                 case STV090x_TSMODE_DVBCI:
4522                 default:
4523                         speed = state->internal->mclk /
4524                                 (state->config->ts2_clk / 4);
4525                         if (speed < 0x08)
4526                                 speed = 0x08;
4527                         if (speed > 0xFF)
4528                                 speed = 0xFF;
4529                         break;
4530                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4531                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4532                         speed = state->internal->mclk /
4533                                 (state->config->ts2_clk / 32);
4534                         if (speed < 0x20)
4535                                 speed = 0x20;
4536                         if (speed > 0xFF)
4537                                 speed = 0xFF;
4538                         break;
4539                 }
4540                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4541                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4542                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4543                         goto err;
4544                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4545                         goto err;
4546         }
4547
4548         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4549         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4550         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4551                 goto err;
4552         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4553         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4554                 goto err;
4555
4556         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4557         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4558         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4559                 goto err;
4560         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4561         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4562                 goto err;
4563
4564         return 0;
4565 err:
4566         dprintk(FE_ERROR, 1, "I/O error");
4567         return -1;
4568 }
4569
4570 static int stv0903_set_tspath(struct stv090x_state *state)
4571 {
4572         u32 reg;
4573
4574         if (state->internal->dev_ver >= 0x20) {
4575                 switch (state->config->ts1_mode) {
4576                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4577                 case STV090x_TSMODE_DVBCI:
4578                         stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4579                         break;
4580
4581                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4582                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4583                 default:
4584                         stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c);
4585                         break;
4586                 }
4587         } else {
4588                 switch (state->config->ts1_mode) {
4589                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4590                 case STV090x_TSMODE_DVBCI:
4591                         stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4592                         break;
4593
4594                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4595                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4596                 default:
4597                         stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4598                         break;
4599                 }
4600         }
4601
4602         switch (state->config->ts1_mode) {
4603         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4604                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4605                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4606                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4607                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4608                         goto err;
4609                 break;
4610
4611         case STV090x_TSMODE_DVBCI:
4612                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4613                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4614                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4615                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4616                         goto err;
4617                 break;
4618
4619         case STV090x_TSMODE_SERIAL_PUNCTURED:
4620                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4621                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4622                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4623                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4624                         goto err;
4625                 break;
4626
4627         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4628                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4629                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4630                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4631                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4632                         goto err;
4633                 break;
4634
4635         default:
4636                 break;
4637         }
4638
4639         if (state->config->ts1_clk > 0) {
4640                 u32 speed;
4641
4642                 switch (state->config->ts1_mode) {
4643                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4644                 case STV090x_TSMODE_DVBCI:
4645                 default:
4646                         speed = state->internal->mclk /
4647                                 (state->config->ts1_clk / 4);
4648                         if (speed < 0x08)
4649                                 speed = 0x08;
4650                         if (speed > 0xFF)
4651                                 speed = 0xFF;
4652                         break;
4653                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4654                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4655                         speed = state->internal->mclk /
4656                                 (state->config->ts1_clk / 32);
4657                         if (speed < 0x20)
4658                                 speed = 0x20;
4659                         if (speed > 0xFF)
4660                                 speed = 0xFF;
4661                         break;
4662                 }
4663                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4664                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4665                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4666                         goto err;
4667                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4668                         goto err;
4669         }
4670
4671         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4672         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4673         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4674                 goto err;
4675         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4676         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4677                 goto err;
4678
4679         return 0;
4680 err:
4681         dprintk(FE_ERROR, 1, "I/O error");
4682         return -1;
4683 }
4684
4685 static int stv090x_init(struct dvb_frontend *fe)
4686 {
4687         struct stv090x_state *state = fe->demodulator_priv;
4688         const struct stv090x_config *config = state->config;
4689         u32 reg;
4690
4691         if (state->internal->mclk == 0) {
4692                 /* call tuner init to configure the tuner's clock output
4693                    divider directly before setting up the master clock of
4694                    the stv090x. */
4695                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4696                         goto err;
4697
4698                 if (config->tuner_init) {
4699                         if (config->tuner_init(fe) < 0)
4700                                 goto err_gateoff;
4701                 }
4702
4703                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4704                         goto err;
4705
4706                 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4707                 msleep(5);
4708                 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4709                                       0x20 | config->clk_mode) < 0)
4710                         goto err;
4711                 stv090x_get_mclk(state);
4712         }
4713
4714         if (stv090x_wakeup(fe) < 0) {
4715                 dprintk(FE_ERROR, 1, "Error waking device");
4716                 goto err;
4717         }
4718
4719         if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4720                 goto err;
4721
4722         reg = STV090x_READ_DEMOD(state, TNRCFG2);
4723         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4724         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4725                 goto err;
4726         reg = STV090x_READ_DEMOD(state, DEMOD);
4727         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4728         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4729                 goto err;
4730
4731         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4732                 goto err;
4733
4734         if (config->tuner_set_mode) {
4735                 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4736                         goto err_gateoff;
4737         }
4738
4739         if (config->tuner_init) {
4740                 if (config->tuner_init(fe) < 0)
4741                         goto err_gateoff;
4742         }
4743
4744         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4745                 goto err;
4746
4747         if (state->device == STV0900) {
4748                 if (stv0900_set_tspath(state) < 0)
4749                         goto err;
4750         } else {
4751                 if (stv0903_set_tspath(state) < 0)
4752                         goto err;
4753         }
4754
4755         return 0;
4756
4757 err_gateoff:
4758         stv090x_i2c_gate_ctrl(state, 0);
4759 err:
4760         dprintk(FE_ERROR, 1, "I/O error");
4761         return -1;
4762 }
4763
4764 static int stv090x_setup(struct dvb_frontend *fe)
4765 {
4766         struct stv090x_state *state = fe->demodulator_priv;
4767         const struct stv090x_config *config = state->config;
4768         const struct stv090x_reg *stv090x_initval = NULL;
4769         const struct stv090x_reg *stv090x_cut20_val = NULL;
4770         unsigned long t1_size = 0, t2_size = 0;
4771         u32 reg = 0;
4772
4773         int i;
4774
4775         if (state->device == STV0900) {
4776                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
4777                 stv090x_initval = stv0900_initval;
4778                 t1_size = ARRAY_SIZE(stv0900_initval);
4779                 stv090x_cut20_val = stv0900_cut20_val;
4780                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
4781         } else if (state->device == STV0903) {
4782                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
4783                 stv090x_initval = stv0903_initval;
4784                 t1_size = ARRAY_SIZE(stv0903_initval);
4785                 stv090x_cut20_val = stv0903_cut20_val;
4786                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
4787         }
4788
4789         /* STV090x init */
4790
4791         /* Stop Demod */
4792         if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4793                 goto err;
4794         if (state->device == STV0900)
4795                 if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4796                         goto err;
4797
4798         msleep(5);
4799
4800         /* Set No Tuner Mode */
4801         if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4802                 goto err;
4803         if (state->device == STV0900)
4804                 if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4805                         goto err;
4806
4807         /* I2C repeater OFF */
4808         STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4809         if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4810                 goto err;
4811         if (state->device == STV0900)
4812                 if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4813                         goto err;
4814
4815         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4816                 goto err;
4817         msleep(5);
4818         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4819                 goto err;
4820         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4821                 goto err;
4822         msleep(5);
4823
4824         /* write initval */
4825         dprintk(FE_DEBUG, 1, "Setting up initial values");
4826         for (i = 0; i < t1_size; i++) {
4827                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4828                         goto err;
4829         }
4830
4831         state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4832         if (state->internal->dev_ver >= 0x20) {
4833                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4834                         goto err;
4835
4836                 /* write cut20_val*/
4837                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4838                 for (i = 0; i < t2_size; i++) {
4839                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4840                                 goto err;
4841                 }
4842
4843         } else if (state->internal->dev_ver < 0x20) {
4844                 dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4845                         state->internal->dev_ver);
4846
4847                 goto err;
4848         } else if (state->internal->dev_ver > 0x30) {
4849                 /* we shouldn't bail out from here */
4850                 dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4851                         state->internal->dev_ver);
4852         }
4853
4854         /* ADC1 range */
4855         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4856         STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4857                 (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4858         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4859                 goto err;
4860
4861         /* ADC2 range */
4862         reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4863         STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4864                 (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4865         if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4866                 goto err;
4867
4868         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4869                 goto err;
4870         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4871                 goto err;
4872
4873         return 0;
4874 err:
4875         dprintk(FE_ERROR, 1, "I/O error");
4876         return -1;
4877 }
4878
4879 static int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir,
4880                             u8 value, u8 xor_value)
4881 {
4882         struct stv090x_state *state = fe->demodulator_priv;
4883         u8 reg = 0;
4884
4885         STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4886         STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4887         STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4888
4889         return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4890 }
4891
4892 static int stv090x_setup_compound(struct stv090x_state *state)
4893 {
4894         struct stv090x_dev *temp_int;
4895
4896         temp_int = find_dev(state->i2c,
4897                             state->config->address);
4898
4899         if (temp_int && state->demod_mode == STV090x_DUAL) {
4900                 state->internal = temp_int->internal;
4901                 state->internal->num_used++;
4902                 dprintk(FE_INFO, 1, "Found Internal Structure!");
4903         } else {
4904                 state->internal = kmalloc(sizeof(*state->internal), GFP_KERNEL);
4905                 if (!state->internal)
4906                         goto error;
4907                 temp_int = append_internal(state->internal);
4908                 if (!temp_int) {
4909                         kfree(state->internal);
4910                         goto error;
4911                 }
4912                 state->internal->num_used = 1;
4913                 state->internal->mclk = 0;
4914                 state->internal->dev_ver = 0;
4915                 state->internal->i2c_adap = state->i2c;
4916                 state->internal->i2c_addr = state->config->address;
4917                 dprintk(FE_INFO, 1, "Create New Internal Structure!");
4918
4919                 mutex_init(&state->internal->demod_lock);
4920                 mutex_init(&state->internal->tuner_lock);
4921
4922                 if (stv090x_setup(&state->frontend) < 0) {
4923                         dprintk(FE_ERROR, 1, "Error setting up device");
4924                         goto err_remove;
4925                 }
4926         }
4927
4928         if (state->internal->dev_ver >= 0x30)
4929                 state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
4930
4931         /* workaround for stuck DiSEqC output */
4932         if (state->config->diseqc_envelope_mode)
4933                 stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4934
4935         state->config->set_gpio = stv090x_set_gpio;
4936
4937         dprintk(FE_ERROR, 1, "Probing %s demodulator(%d) Cut=0x%02x",
4938                 state->device == STV0900 ? "STV0900" : "STV0903",
4939                 state->config->demod,
4940                 state->internal->dev_ver);
4941
4942         return 0;
4943
4944 error:
4945         return -ENOMEM;
4946 err_remove:
4947         remove_dev(state->internal);
4948         kfree(state->internal);
4949         return -ENODEV;
4950 }
4951
4952 static const struct dvb_frontend_ops stv090x_ops = {
4953         .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
4954         .info = {
4955                 .name                   = "STV090x Multistandard",
4956                 .frequency_min_hz       =  950 * MHz,
4957                 .frequency_max_hz       = 2150 * MHz,
4958                 .symbol_rate_min        = 1000000,
4959                 .symbol_rate_max        = 45000000,
4960                 .caps                   = FE_CAN_INVERSION_AUTO |
4961                                           FE_CAN_FEC_AUTO       |
4962                                           FE_CAN_QPSK           |
4963                                           FE_CAN_2G_MODULATION
4964         },
4965
4966         .release                        = stv090x_release,
4967         .init                           = stv090x_init,
4968
4969         .sleep                          = stv090x_sleep,
4970         .get_frontend_algo              = stv090x_frontend_algo,
4971
4972         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4973         .diseqc_send_burst              = stv090x_send_diseqc_burst,
4974         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4975         .set_tone                       = stv090x_set_tone,
4976
4977         .search                         = stv090x_search,
4978         .read_status                    = stv090x_read_status,
4979         .read_ber                       = stv090x_read_per,
4980         .read_signal_strength           = stv090x_read_signal_strength,
4981         .read_snr                       = stv090x_read_cnr,
4982 };
4983
4984 static struct dvb_frontend *stv090x_get_dvb_frontend(struct i2c_client *client)
4985 {
4986         struct stv090x_state *state = i2c_get_clientdata(client);
4987
4988         dev_dbg(&client->dev, "\n");
4989
4990         return &state->frontend;
4991 }
4992
4993 static int stv090x_probe(struct i2c_client *client)
4994 {
4995         int ret = 0;
4996         struct stv090x_config *config = client->dev.platform_data;
4997
4998         struct stv090x_state *state = NULL;
4999
5000         state = kzalloc(sizeof(*state), GFP_KERNEL);
5001         if (!state) {
5002                 ret = -ENOMEM;
5003                 goto error;
5004         }
5005
5006         state->verbose                          = &verbose;
5007         state->config                           = config;
5008         state->i2c                              = client->adapter;
5009         state->frontend.ops                     = stv090x_ops;
5010         state->frontend.demodulator_priv        = state;
5011         state->demod                            = config->demod;
5012                                                 /* Single or Dual mode */
5013         state->demod_mode                       = config->demod_mode;
5014         state->device                           = config->device;
5015                                                 /* default */
5016         state->rolloff                          = STV090x_RO_35;
5017
5018         ret = stv090x_setup_compound(state);
5019         if (ret)
5020                 goto error;
5021
5022         i2c_set_clientdata(client, state);
5023
5024         /* setup callbacks */
5025         config->get_dvb_frontend = stv090x_get_dvb_frontend;
5026
5027         return 0;
5028
5029 error:
5030         kfree(state);
5031         return ret;
5032 }
5033
5034 static void stv090x_remove(struct i2c_client *client)
5035 {
5036         struct stv090x_state *state = i2c_get_clientdata(client);
5037
5038         stv090x_release(&state->frontend);
5039 }
5040
5041 struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
5042                                     struct i2c_adapter *i2c,
5043                                     enum stv090x_demodulator demod)
5044 {
5045         int ret = 0;
5046         struct stv090x_state *state = NULL;
5047
5048         state = kzalloc(sizeof(*state), GFP_KERNEL);
5049         if (!state)
5050                 goto error;
5051
5052         state->verbose                          = &verbose;
5053         state->config                           = config;
5054         state->i2c                              = i2c;
5055         state->frontend.ops                     = stv090x_ops;
5056         state->frontend.demodulator_priv        = state;
5057         state->demod                            = demod;
5058                                                 /* Single or Dual mode */
5059         state->demod_mode                       = config->demod_mode;
5060         state->device                           = config->device;
5061                                                 /* default */
5062         state->rolloff                          = STV090x_RO_35;
5063
5064         ret = stv090x_setup_compound(state);
5065         if (ret)
5066                 goto error;
5067
5068         return &state->frontend;
5069
5070 error:
5071         kfree(state);
5072         return NULL;
5073 }
5074 EXPORT_SYMBOL(stv090x_attach);
5075
5076 static const struct i2c_device_id stv090x_id_table[] = {
5077         {"stv090x", 0},
5078         {}
5079 };
5080 MODULE_DEVICE_TABLE(i2c, stv090x_id_table);
5081
5082 static struct i2c_driver stv090x_driver = {
5083         .driver = {
5084                 .name   = "stv090x",
5085                 .suppress_bind_attrs = true,
5086         },
5087         .probe          = stv090x_probe,
5088         .remove         = stv090x_remove,
5089         .id_table       = stv090x_id_table,
5090 };
5091
5092 module_i2c_driver(stv090x_driver);
5093
5094 MODULE_PARM_DESC(verbose, "Set Verbosity level");
5095 MODULE_AUTHOR("Manu Abraham");
5096 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
5097 MODULE_LICENSE("GPL");