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 <[email protected]>
   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 inline void stv090x_tuner_i2c_lock(struct stv090x_state *state)
 752 {
 753         if (state->config->tuner_i2c_lock)
 754                 state->config->tuner_i2c_lock(&state->frontend, 1);
 755         else
 756                 mutex_lock(&state->internal->tuner_lock);
 757 }
 758
 759 static inline void stv090x_tuner_i2c_unlock(struct stv090x_state *state)
 760 {
 761         if (state->config->tuner_i2c_lock)
 762                 state->config->tuner_i2c_lock(&state->frontend, 0);
 763         else
 764                 mutex_unlock(&state->internal->tuner_lock);
 765 }
 766
 767 static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
 768 {
 769         u32 reg;
 770
 771         /*
 772          * NOTE! A lock is used as a FSM to control the state in which
 773          * access is serialized between two tuners on the same demod.
 774          * This has nothing to do with a lock to protect a critical section
 775          * which may in some other cases be confused with protecting I/O
 776          * access to the demodulator gate.
 777          * In case of any error, the lock is unlocked and exit within the
 778          * relevant operations themselves.
 779          */
 780         if (enable)
 781                 stv090x_tuner_i2c_lock(state);
 782
 783         reg = STV090x_READ_DEMOD(state, I2CRPT);
 784         if (enable) {
 785                 dprintk(FE_DEBUG, 1, "Enable Gate");
 786                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 1);
 787                 if (STV090x_WRITE_DEMOD(state, I2CRPT, reg) < 0)
 788                         goto err;
 789
 790         } else {
 791                 dprintk(FE_DEBUG, 1, "Disable Gate");
 792                 STV090x_SETFIELD_Px(reg, I2CT_ON_FIELD, 0);
 793                 if ((STV090x_WRITE_DEMOD(state, I2CRPT, reg)) < 0)
 794                         goto err;
 795         }
 796
 797         if (!enable)
 798                 stv090x_tuner_i2c_unlock(state);
 799
 800         return 0;
 801 err:
 802         dprintk(FE_ERROR, 1, "I/O error");
 803         stv090x_tuner_i2c_unlock(state);
 804         return -1;
 805 }
 806
 807 static void stv090x_get_lock_tmg(struct stv090x_state *state)
 808 {
 809         switch (state->algo) {
 810         case STV090x_BLIND_SEARCH:
 811                 dprintk(FE_DEBUG, 1, "Blind Search");
 812                 if (state->srate <= 1500000) {  /*10Msps< SR <=15Msps*/
 813                         state->DemodTimeout = 1500;
 814                         state->FecTimeout = 400;
 815                 } else if (state->srate <= 5000000) {  /*10Msps< SR <=15Msps*/
 816                         state->DemodTimeout = 1000;
 817                         state->FecTimeout = 300;
 818                 } else {  /*SR >20Msps*/
 819                         state->DemodTimeout = 700;
 820                         state->FecTimeout = 100;
 821                 }
 822                 break;
 823
 824         case STV090x_COLD_SEARCH:
 825         case STV090x_WARM_SEARCH:
 826         default:
 827                 dprintk(FE_DEBUG, 1, "Normal Search");
 828                 if (state->srate <= 1000000) {  /*SR <=1Msps*/
 829                         state->DemodTimeout = 4500;
 830                         state->FecTimeout = 1700;
 831                 } else if (state->srate <= 2000000) { /*1Msps < SR <= 2Msps */
 832                         state->DemodTimeout = 2500;
 833                         state->FecTimeout = 1100;
 834                 } else if (state->srate <= 5000000) { /*2Msps < SR <= 5Msps */
 835                         state->DemodTimeout = 1000;
 836                         state->FecTimeout = 550;
 837                 } else if (state->srate <= 10000000) { /*5Msps < SR <= 10Msps */
 838                         state->DemodTimeout = 700;
 839                         state->FecTimeout = 250;
 840                 } else if (state->srate <= 20000000) { /*10Msps < SR <= 20Msps */
 841                         state->DemodTimeout = 400;
 842                         state->FecTimeout = 130;
 843                 } else {   /*SR >20Msps*/
 844                         state->DemodTimeout = 300;
 845                         state->FecTimeout = 100;
 846                 }
 847                 break;
 848         }
 849
 850         if (state->algo == STV090x_WARM_SEARCH)
 851                 state->DemodTimeout /= 2;
 852 }
 853
 854 static int stv090x_set_srate(struct stv090x_state *state, u32 srate)
 855 {
 856         u32 sym;
 857
 858         if (srate > 60000000) {
 859                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 860                 sym /= (state->internal->mclk >> 12);
 861         } else if (srate > 6000000) {
 862                 sym  = (srate << 6);
 863                 sym /= (state->internal->mclk >> 10);
 864         } else {
 865                 sym  = (srate << 9);
 866                 sym /= (state->internal->mclk >> 7);
 867         }
 868
 869         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0x7f) < 0) /* MSB */
 870                 goto err;
 871         if (STV090x_WRITE_DEMOD(state, SFRINIT0, (sym & 0xff)) < 0) /* LSB */
 872                 goto err;
 873
 874         return 0;
 875 err:
 876         dprintk(FE_ERROR, 1, "I/O error");
 877         return -1;
 878 }
 879
 880 static int stv090x_set_max_srate(struct stv090x_state *state, u32 clk, u32 srate)
 881 {
 882         u32 sym;
 883
 884         srate = 105 * (srate / 100);
 885         if (srate > 60000000) {
 886                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 887                 sym /= (state->internal->mclk >> 12);
 888         } else if (srate > 6000000) {
 889                 sym  = (srate << 6);
 890                 sym /= (state->internal->mclk >> 10);
 891         } else {
 892                 sym  = (srate << 9);
 893                 sym /= (state->internal->mclk >> 7);
 894         }
 895
 896         if (sym < 0x7fff) {
 897                 if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0) /* MSB */
 898                         goto err;
 899                 if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0) /* LSB */
 900                         goto err;
 901         } else {
 902                 if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x7f) < 0) /* MSB */
 903                         goto err;
 904                 if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xff) < 0) /* LSB */
 905                         goto err;
 906         }
 907
 908         return 0;
 909 err:
 910         dprintk(FE_ERROR, 1, "I/O error");
 911         return -1;
 912 }
 913
 914 static int stv090x_set_min_srate(struct stv090x_state *state, u32 clk, u32 srate)
 915 {
 916         u32 sym;
 917
 918         srate = 95 * (srate / 100);
 919         if (srate > 60000000) {
 920                 sym  = (srate << 4); /* SR * 2^16 / master_clk */
 921                 sym /= (state->internal->mclk >> 12);
 922         } else if (srate > 6000000) {
 923                 sym  = (srate << 6);
 924                 sym /= (state->internal->mclk >> 10);
 925         } else {
 926                 sym  = (srate << 9);
 927                 sym /= (state->internal->mclk >> 7);
 928         }
 929
 930         if (STV090x_WRITE_DEMOD(state, SFRLOW1, ((sym >> 8) & 0x7f)) < 0) /* MSB */
 931                 goto err;
 932         if (STV090x_WRITE_DEMOD(state, SFRLOW0, (sym & 0xff)) < 0) /* LSB */
 933                 goto err;
 934         return 0;
 935 err:
 936         dprintk(FE_ERROR, 1, "I/O error");
 937         return -1;
 938 }
 939
 940 static u32 stv090x_car_width(u32 srate, enum stv090x_rolloff rolloff)
 941 {
 942         u32 ro;
 943
 944         switch (rolloff) {
 945         case STV090x_RO_20:
 946                 ro = 20;
 947                 break;
 948         case STV090x_RO_25:
 949                 ro = 25;
 950                 break;
 951         case STV090x_RO_35:
 952         default:
 953                 ro = 35;
 954                 break;
 955         }
 956
 957         return srate + (srate * ro) / 100;
 958 }
 959
 960 static int stv090x_set_vit_thacq(struct stv090x_state *state)
 961 {
 962         if (STV090x_WRITE_DEMOD(state, VTH12, 0x96) < 0)
 963                 goto err;
 964         if (STV090x_WRITE_DEMOD(state, VTH23, 0x64) < 0)
 965                 goto err;
 966         if (STV090x_WRITE_DEMOD(state, VTH34, 0x36) < 0)
 967                 goto err;
 968         if (STV090x_WRITE_DEMOD(state, VTH56, 0x23) < 0)
 969                 goto err;
 970         if (STV090x_WRITE_DEMOD(state, VTH67, 0x1e) < 0)
 971                 goto err;
 972         if (STV090x_WRITE_DEMOD(state, VTH78, 0x19) < 0)
 973                 goto err;
 974         return 0;
 975 err:
 976         dprintk(FE_ERROR, 1, "I/O error");
 977         return -1;
 978 }
 979
 980 static int stv090x_set_vit_thtracq(struct stv090x_state *state)
 981 {
 982         if (STV090x_WRITE_DEMOD(state, VTH12, 0xd0) < 0)
 983                 goto err;
 984         if (STV090x_WRITE_DEMOD(state, VTH23, 0x7d) < 0)
 985                 goto err;
 986         if (STV090x_WRITE_DEMOD(state, VTH34, 0x53) < 0)
 987                 goto err;
 988         if (STV090x_WRITE_DEMOD(state, VTH56, 0x2f) < 0)
 989                 goto err;
 990         if (STV090x_WRITE_DEMOD(state, VTH67, 0x24) < 0)
 991                 goto err;
 992         if (STV090x_WRITE_DEMOD(state, VTH78, 0x1f) < 0)
 993                 goto err;
 994         return 0;
 995 err:
 996         dprintk(FE_ERROR, 1, "I/O error");
 997         return -1;
 998 }
 999
1000 static int stv090x_set_viterbi(struct stv090x_state *state)
1001 {
1002         switch (state->search_mode) {
1003         case STV090x_SEARCH_AUTO:
1004                 if (STV090x_WRITE_DEMOD(state, FECM, 0x10) < 0) /* DVB-S and DVB-S2 */
1005                         goto err;
1006                 if (STV090x_WRITE_DEMOD(state, PRVIT, 0x3f) < 0) /* all puncture rate */
1007                         goto err;
1008                 break;
1009         case STV090x_SEARCH_DVBS1:
1010                 if (STV090x_WRITE_DEMOD(state, FECM, 0x00) < 0) /* disable DSS */
1011                         goto err;
1012                 switch (state->fec) {
1013                 case STV090x_PR12:
1014                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1015                                 goto err;
1016                         break;
1017
1018                 case STV090x_PR23:
1019                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1020                                 goto err;
1021                         break;
1022
1023                 case STV090x_PR34:
1024                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x04) < 0)
1025                                 goto err;
1026                         break;
1027
1028                 case STV090x_PR56:
1029                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x08) < 0)
1030                                 goto err;
1031                         break;
1032
1033                 case STV090x_PR78:
1034                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x20) < 0)
1035                                 goto err;
1036                         break;
1037
1038                 default:
1039                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x2f) < 0) /* all */
1040                                 goto err;
1041                         break;
1042                 }
1043                 break;
1044         case STV090x_SEARCH_DSS:
1045                 if (STV090x_WRITE_DEMOD(state, FECM, 0x80) < 0)
1046                         goto err;
1047                 switch (state->fec) {
1048                 case STV090x_PR12:
1049                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x01) < 0)
1050                                 goto err;
1051                         break;
1052
1053                 case STV090x_PR23:
1054                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x02) < 0)
1055                                 goto err;
1056                         break;
1057
1058                 case STV090x_PR67:
1059                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x10) < 0)
1060                                 goto err;
1061                         break;
1062
1063                 default:
1064                         if (STV090x_WRITE_DEMOD(state, PRVIT, 0x13) < 0) /* 1/2, 2/3, 6/7 */
1065                                 goto err;
1066                         break;
1067                 }
1068                 break;
1069         default:
1070                 break;
1071         }
1072         return 0;
1073 err:
1074         dprintk(FE_ERROR, 1, "I/O error");
1075         return -1;
1076 }
1077
1078 static int stv090x_stop_modcod(struct stv090x_state *state)
1079 {
1080         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1081                 goto err;
1082         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
1083                 goto err;
1084         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
1085                 goto err;
1086         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
1087                 goto err;
1088         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
1089                 goto err;
1090         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
1091                 goto err;
1092         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
1093                 goto err;
1094         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xff) < 0)
1095                 goto err;
1096         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xff) < 0)
1097                 goto err;
1098         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xff) < 0)
1099                 goto err;
1100         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xff) < 0)
1101                 goto err;
1102         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xff) < 0)
1103                 goto err;
1104         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xff) < 0)
1105                 goto err;
1106         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xff) < 0)
1107                 goto err;
1108         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
1109                 goto err;
1110         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xff) < 0)
1111                 goto err;
1112         return 0;
1113 err:
1114         dprintk(FE_ERROR, 1, "I/O error");
1115         return -1;
1116 }
1117
1118 static int stv090x_activate_modcod(struct stv090x_state *state)
1119 {
1120         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1121                 goto err;
1122         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xfc) < 0)
1123                 goto err;
1124         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xcc) < 0)
1125                 goto err;
1126         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xcc) < 0)
1127                 goto err;
1128         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xcc) < 0)
1129                 goto err;
1130         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xcc) < 0)
1131                 goto err;
1132         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xcc) < 0)
1133                 goto err;
1134         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
1135                 goto err;
1136         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
1137                 goto err;
1138         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
1139                 goto err;
1140         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
1141                 goto err;
1142         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
1143                 goto err;
1144         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
1145                 goto err;
1146         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
1147                 goto err;
1148         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xcc) < 0)
1149                 goto err;
1150         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
1151                 goto err;
1152
1153         return 0;
1154 err:
1155         dprintk(FE_ERROR, 1, "I/O error");
1156         return -1;
1157 }
1158
1159 static int stv090x_activate_modcod_single(struct stv090x_state *state)
1160 {
1161
1162         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
1163                 goto err;
1164         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xf0) < 0)
1165                 goto err;
1166         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0x00) < 0)
1167                 goto err;
1168         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0x00) < 0)
1169                 goto err;
1170         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0x00) < 0)
1171                 goto err;
1172         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0x00) < 0)
1173                 goto err;
1174         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0x00) < 0)
1175                 goto err;
1176         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0x00) < 0)
1177                 goto err;
1178         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0x00) < 0)
1179                 goto err;
1180         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0x00) < 0)
1181                 goto err;
1182         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0x00) < 0)
1183                 goto err;
1184         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0x00) < 0)
1185                 goto err;
1186         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0x00) < 0)
1187                 goto err;
1188         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0x00) < 0)
1189                 goto err;
1190         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0x00) < 0)
1191                 goto err;
1192         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0x0f) < 0)
1193                 goto err;
1194
1195         return 0;
1196
1197 err:
1198         dprintk(FE_ERROR, 1, "I/O error");
1199         return -1;
1200 }
1201
1202 static int stv090x_vitclk_ctl(struct stv090x_state *state, int enable)
1203 {
1204         u32 reg;
1205
1206         switch (state->demod) {
1207         case STV090x_DEMODULATOR_0:
1208                 mutex_lock(&state->internal->demod_lock);
1209                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1210                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, enable);
1211                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1212                         goto err;
1213                 mutex_unlock(&state->internal->demod_lock);
1214                 break;
1215
1216         case STV090x_DEMODULATOR_1:
1217                 mutex_lock(&state->internal->demod_lock);
1218                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
1219                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, enable);
1220                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
1221                         goto err;
1222                 mutex_unlock(&state->internal->demod_lock);
1223                 break;
1224
1225         default:
1226                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
1227                 break;
1228         }
1229         return 0;
1230 err:
1231         mutex_unlock(&state->internal->demod_lock);
1232         dprintk(FE_ERROR, 1, "I/O error");
1233         return -1;
1234 }
1235
1236 static int stv090x_dvbs_track_crl(struct stv090x_state *state)
1237 {
1238         if (state->internal->dev_ver >= 0x30) {
1239                 /* Set ACLC BCLC optimised value vs SR */
1240                 if (state->srate >= 15000000) {
1241                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2b) < 0)
1242                                 goto err;
1243                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1a) < 0)
1244                                 goto err;
1245                 } else if ((state->srate >= 7000000) && (15000000 > state->srate)) {
1246                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x0c) < 0)
1247                                 goto err;
1248                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1b) < 0)
1249                                 goto err;
1250                 } else if (state->srate < 7000000) {
1251                         if (STV090x_WRITE_DEMOD(state, ACLC, 0x2c) < 0)
1252                                 goto err;
1253                         if (STV090x_WRITE_DEMOD(state, BCLC, 0x1c) < 0)
1254                                 goto err;
1255                 }
1256
1257         } else {
1258                 /* Cut 2.0 */
1259                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0)
1260                         goto err;
1261                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1262                         goto err;
1263         }
1264         return 0;
1265 err:
1266         dprintk(FE_ERROR, 1, "I/O error");
1267         return -1;
1268 }
1269
1270 static int stv090x_delivery_search(struct stv090x_state *state)
1271 {
1272         u32 reg;
1273
1274         switch (state->search_mode) {
1275         case STV090x_SEARCH_DVBS1:
1276         case STV090x_SEARCH_DSS:
1277                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1278                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1279                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1280                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1281                         goto err;
1282
1283                 /* Activate Viterbi decoder in legacy search,
1284                  * do not use FRESVIT1, might impact VITERBI2
1285                  */
1286                 if (stv090x_vitclk_ctl(state, 0) < 0)
1287                         goto err;
1288
1289                 if (stv090x_dvbs_track_crl(state) < 0)
1290                         goto err;
1291
1292                 if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x22) < 0) /* disable DVB-S2 */
1293                         goto err;
1294
1295                 if (stv090x_set_vit_thacq(state) < 0)
1296                         goto err;
1297                 if (stv090x_set_viterbi(state) < 0)
1298                         goto err;
1299                 break;
1300
1301         case STV090x_SEARCH_DVBS2:
1302                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1303                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1304                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1305                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1306                         goto err;
1307                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1308                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1309                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1310                         goto err;
1311
1312                 if (stv090x_vitclk_ctl(state, 1) < 0)
1313                         goto err;
1314
1315                 if (STV090x_WRITE_DEMOD(state, ACLC, 0x1a) < 0) /* stop DVB-S CR loop */
1316                         goto err;
1317                 if (STV090x_WRITE_DEMOD(state, BCLC, 0x09) < 0)
1318                         goto err;
1319
1320                 if (state->internal->dev_ver <= 0x20) {
1321                         /* enable S2 carrier loop */
1322                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1323                                 goto err;
1324                 } else {
1325                         /* > Cut 3: Stop carrier 3 */
1326                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1327                                 goto err;
1328                 }
1329
1330                 if (state->demod_mode != STV090x_SINGLE) {
1331                         /* Cut 2: enable link during search */
1332                         if (stv090x_activate_modcod(state) < 0)
1333                                 goto err;
1334                 } else {
1335                         /* Single demodulator
1336                          * Authorize SHORT and LONG frames,
1337                          * QPSK, 8PSK, 16APSK and 32APSK
1338                          */
1339                         if (stv090x_activate_modcod_single(state) < 0)
1340                                 goto err;
1341                 }
1342
1343                 if (stv090x_set_vit_thtracq(state) < 0)
1344                         goto err;
1345                 break;
1346
1347         case STV090x_SEARCH_AUTO:
1348         default:
1349                 /* enable DVB-S2 and DVB-S2 in Auto MODE */
1350                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1351                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
1352                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
1353                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1354                         goto err;
1355                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
1356                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
1357                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1358                         goto err;
1359
1360                 if (stv090x_vitclk_ctl(state, 0) < 0)
1361                         goto err;
1362
1363                 if (stv090x_dvbs_track_crl(state) < 0)
1364                         goto err;
1365
1366                 if (state->internal->dev_ver <= 0x20) {
1367                         /* enable S2 carrier loop */
1368                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x26) < 0)
1369                                 goto err;
1370                 } else {
1371                         /* > Cut 3: Stop carrier 3 */
1372                         if (STV090x_WRITE_DEMOD(state, CAR2CFG, 0x66) < 0)
1373                                 goto err;
1374                 }
1375
1376                 if (state->demod_mode != STV090x_SINGLE) {
1377                         /* Cut 2: enable link during search */
1378                         if (stv090x_activate_modcod(state) < 0)
1379                                 goto err;
1380                 } else {
1381                         /* Single demodulator
1382                          * Authorize SHORT and LONG frames,
1383                          * QPSK, 8PSK, 16APSK and 32APSK
1384                          */
1385                         if (stv090x_activate_modcod_single(state) < 0)
1386                                 goto err;
1387                 }
1388
1389                 if (stv090x_set_vit_thacq(state) < 0)
1390                         goto err;
1391
1392                 if (stv090x_set_viterbi(state) < 0)
1393                         goto err;
1394                 break;
1395         }
1396         return 0;
1397 err:
1398         dprintk(FE_ERROR, 1, "I/O error");
1399         return -1;
1400 }
1401
1402 static int stv090x_start_search(struct stv090x_state *state)
1403 {
1404         u32 reg, freq_abs;
1405         s16 freq;
1406
1407         /* Reset demodulator */
1408         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1409         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f);
1410         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1411                 goto err;
1412
1413         if (state->internal->dev_ver <= 0x20) {
1414                 if (state->srate <= 5000000) {
1415                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x44) < 0)
1416                                 goto err;
1417                         if (STV090x_WRITE_DEMOD(state, CFRUP1, 0x0f) < 0)
1418                                 goto err;
1419                         if (STV090x_WRITE_DEMOD(state, CFRUP0, 0xff) < 0)
1420                                 goto err;
1421                         if (STV090x_WRITE_DEMOD(state, CFRLOW1, 0xf0) < 0)
1422                                 goto err;
1423                         if (STV090x_WRITE_DEMOD(state, CFRLOW0, 0x00) < 0)
1424                                 goto err;
1425
1426                         /*enlarge the timing bandwidth for Low SR*/
1427                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0)
1428                                 goto err;
1429                 } else {
1430                         /* If the symbol rate is >5 Msps
1431                         Set The carrier search up and low to auto mode */
1432                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
1433                                 goto err;
1434                         /*reduce the timing bandwidth for high SR*/
1435                         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
1436                                 goto err;
1437                 }
1438         } else {
1439                 /* >= Cut 3 */
1440                 if (state->srate <= 5000000) {
1441                         /* enlarge the timing bandwidth for Low SR */
1442                         STV090x_WRITE_DEMOD(state, RTCS2, 0x68);
1443                 } else {
1444                         /* reduce timing bandwidth for high SR */
1445                         STV090x_WRITE_DEMOD(state, RTCS2, 0x44);
1446                 }
1447
1448                 /* Set CFR min and max to manual mode */
1449                 STV090x_WRITE_DEMOD(state, CARCFG, 0x46);
1450
1451                 if (state->algo == STV090x_WARM_SEARCH) {
1452                         /* WARM Start
1453                          * CFR min = -1MHz,
1454                          * CFR max = +1MHz
1455                          */
1456                         freq_abs  = 1000 << 16;
1457                         freq_abs /= (state->internal->mclk / 1000);
1458                         freq      = (s16) freq_abs;
1459                 } else {
1460                         /* COLD Start
1461                          * CFR min =- (SearchRange / 2 + 600KHz)
1462                          * CFR max = +(SearchRange / 2 + 600KHz)
1463                          * (600KHz for the tuner step size)
1464                          */
1465                         freq_abs  = (state->search_range / 2000) + 600;
1466                         freq_abs  = freq_abs << 16;
1467                         freq_abs /= (state->internal->mclk / 1000);
1468                         freq      = (s16) freq_abs;
1469                 }
1470
1471                 if (STV090x_WRITE_DEMOD(state, CFRUP1, MSB(freq)) < 0)
1472                         goto err;
1473                 if (STV090x_WRITE_DEMOD(state, CFRUP0, LSB(freq)) < 0)
1474                         goto err;
1475
1476                 freq *= -1;
1477
1478                 if (STV090x_WRITE_DEMOD(state, CFRLOW1, MSB(freq)) < 0)
1479                         goto err;
1480                 if (STV090x_WRITE_DEMOD(state, CFRLOW0, LSB(freq)) < 0)
1481                         goto err;
1482
1483         }
1484
1485         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0) < 0)
1486                 goto err;
1487         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0) < 0)
1488                 goto err;
1489
1490         if (state->internal->dev_ver >= 0x20) {
1491                 if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
1492                         goto err;
1493                 if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
1494                         goto err;
1495
1496                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
1497                         (state->search_mode == STV090x_SEARCH_DSS)      ||
1498                         (state->search_mode == STV090x_SEARCH_AUTO)) {
1499
1500                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
1501                                 goto err;
1502                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0)
1503                                 goto err;
1504                 }
1505         }
1506
1507         if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00) < 0)
1508                 goto err;
1509         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xe0) < 0)
1510                 goto err;
1511         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xc0) < 0)
1512                 goto err;
1513
1514         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1515         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1516         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1517         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1518                 goto err;
1519         reg = STV090x_READ_DEMOD(state, DMDCFG2);
1520         STV090x_SETFIELD_Px(reg, S1S2_SEQUENTIAL_FIELD, 0x0);
1521         if (STV090x_WRITE_DEMOD(state, DMDCFG2, reg) < 0)
1522                 goto err;
1523
1524         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0)
1525                 goto err;
1526
1527         if (state->internal->dev_ver >= 0x20) {
1528                 /*Frequency offset detector setting*/
1529                 if (state->srate < 2000000) {
1530                         if (state->internal->dev_ver <= 0x20) {
1531                                 /* Cut 2 */
1532                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x39) < 0)
1533                                         goto err;
1534                         } else {
1535                                 /* Cut 3 */
1536                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x89) < 0)
1537                                         goto err;
1538                         }
1539                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x40) < 0)
1540                                 goto err;
1541                 } else if (state->srate < 10000000) {
1542                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4c) < 0)
1543                                 goto err;
1544                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1545                                 goto err;
1546                 } else {
1547                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x4b) < 0)
1548                                 goto err;
1549                         if (STV090x_WRITE_DEMOD(state, CARHDR, 0x20) < 0)
1550                                 goto err;
1551                 }
1552         } else {
1553                 if (state->srate < 10000000) {
1554                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xef) < 0)
1555                                 goto err;
1556                 } else {
1557                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0xed) < 0)
1558                                 goto err;
1559                 }
1560         }
1561
1562         switch (state->algo) {
1563         case STV090x_WARM_SEARCH:
1564                 /* The symbol rate and the exact
1565                  * carrier Frequency are known
1566                  */
1567                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1568                         goto err;
1569                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
1570                         goto err;
1571                 break;
1572
1573         case STV090x_COLD_SEARCH:
1574                 /* The symbol rate is known */
1575                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
1576                         goto err;
1577                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
1578                         goto err;
1579                 break;
1580
1581         default:
1582                 break;
1583         }
1584         return 0;
1585 err:
1586         dprintk(FE_ERROR, 1, "I/O error");
1587         return -1;
1588 }
1589
1590 static int stv090x_get_agc2_min_level(struct stv090x_state *state)
1591 {
1592         u32 agc2_min = 0xffff, agc2 = 0, freq_init, freq_step, reg;
1593         s32 i, j, steps, dir;
1594
1595         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1596                 goto err;
1597         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1598         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0);
1599         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1600         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1601                 goto err;
1602
1603         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0) /* SR = 65 Msps Max */
1604                 goto err;
1605         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1606                 goto err;
1607         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0) /* SR= 400 ksps Min */
1608                 goto err;
1609         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1610                 goto err;
1611         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0) /* stop acq @ coarse carrier state */
1612                 goto err;
1613         if (stv090x_set_srate(state, 1000000) < 0)
1614                 goto err;
1615
1616         steps  = state->search_range / 1000000;
1617         if (steps <= 0)
1618                 steps = 1;
1619
1620         dir = 1;
1621         freq_step = (1000000 * 256) / (state->internal->mclk / 256);
1622         freq_init = 0;
1623
1624         for (i = 0; i < steps; i++) {
1625                 if (dir > 0)
1626                         freq_init = freq_init + (freq_step * i);
1627                 else
1628                         freq_init = freq_init - (freq_step * i);
1629
1630                 dir *= -1;
1631
1632                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod RESET */
1633                         goto err;
1634                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_init >> 8) & 0xff) < 0)
1635                         goto err;
1636                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_init & 0xff) < 0)
1637                         goto err;
1638                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x58) < 0) /* Demod RESET */
1639                         goto err;
1640                 msleep(10);
1641
1642                 agc2 = 0;
1643                 for (j = 0; j < 10; j++) {
1644                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1645                                 STV090x_READ_DEMOD(state, AGC2I0);
1646                 }
1647                 agc2 /= 10;
1648                 if (agc2 < agc2_min)
1649                         agc2_min = agc2;
1650         }
1651
1652         return agc2_min;
1653 err:
1654         dprintk(FE_ERROR, 1, "I/O error");
1655         return -1;
1656 }
1657
1658 static u32 stv090x_get_srate(struct stv090x_state *state, u32 clk)
1659 {
1660         u8 r3, r2, r1, r0;
1661         s32 srate, int_1, int_2, tmp_1, tmp_2;
1662
1663         r3 = STV090x_READ_DEMOD(state, SFR3);
1664         r2 = STV090x_READ_DEMOD(state, SFR2);
1665         r1 = STV090x_READ_DEMOD(state, SFR1);
1666         r0 = STV090x_READ_DEMOD(state, SFR0);
1667
1668         srate = ((r3 << 24) | (r2 << 16) | (r1 <<  8) | r0);
1669
1670         int_1 = clk >> 16;
1671         int_2 = srate >> 16;
1672
1673         tmp_1 = clk % 0x10000;
1674         tmp_2 = srate % 0x10000;
1675
1676         srate = (int_1 * int_2) +
1677                 ((int_1 * tmp_2) >> 16) +
1678                 ((int_2 * tmp_1) >> 16);
1679
1680         return srate;
1681 }
1682
1683 static u32 stv090x_srate_srch_coarse(struct stv090x_state *state)
1684 {
1685         struct dvb_frontend *fe = &state->frontend;
1686
1687         int tmg_lock = 0, i;
1688         s32 tmg_cpt = 0, dir = 1, steps, cur_step = 0, freq;
1689         u32 srate_coarse = 0, agc2 = 0, car_step = 1200, reg;
1690         u32 agc2th;
1691
1692         if (state->internal->dev_ver >= 0x30)
1693                 agc2th = 0x2e00;
1694         else
1695                 agc2th = 0x1f00;
1696
1697         reg = STV090x_READ_DEMOD(state, DMDISTATE);
1698         STV090x_SETFIELD_Px(reg, I2C_DEMOD_MODE_FIELD, 0x1f); /* Demod RESET */
1699         if (STV090x_WRITE_DEMOD(state, DMDISTATE, reg) < 0)
1700                 goto err;
1701         if (STV090x_WRITE_DEMOD(state, TMGCFG, 0x12) < 0)
1702                 goto err;
1703         if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0)
1704                 goto err;
1705         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0xf0) < 0)
1706                 goto err;
1707         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0xe0) < 0)
1708                 goto err;
1709         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1710         STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 1);
1711         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0);
1712         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1713                 goto err;
1714
1715         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x83) < 0)
1716                 goto err;
1717         if (STV090x_WRITE_DEMOD(state, SFRUP0, 0xc0) < 0)
1718                 goto err;
1719         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x82) < 0)
1720                 goto err;
1721         if (STV090x_WRITE_DEMOD(state, SFRLOW0, 0xa0) < 0)
1722                 goto err;
1723         if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x00) < 0)
1724                 goto err;
1725         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x50) < 0)
1726                 goto err;
1727
1728         if (state->internal->dev_ver >= 0x30) {
1729                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x99) < 0)
1730                         goto err;
1731                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x98) < 0)
1732                         goto err;
1733
1734         } else if (state->internal->dev_ver >= 0x20) {
1735                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x6a) < 0)
1736                         goto err;
1737                 if (STV090x_WRITE_DEMOD(state, SFRSTEP, 0x95) < 0)
1738                         goto err;
1739         }
1740
1741         if (state->srate <= 2000000)
1742                 car_step = 1000;
1743         else if (state->srate <= 5000000)
1744                 car_step = 2000;
1745         else if (state->srate <= 12000000)
1746                 car_step = 3000;
1747         else
1748                 car_step = 5000;
1749
1750         steps  = -1 + ((state->search_range / 1000) / car_step);
1751         steps /= 2;
1752         steps  = (2 * steps) + 1;
1753         if (steps < 0)
1754                 steps = 1;
1755         else if (steps > 10) {
1756                 steps = 11;
1757                 car_step = (state->search_range / 1000) / 10;
1758         }
1759         cur_step = 0;
1760         dir = 1;
1761         freq = state->frequency;
1762
1763         while ((!tmg_lock) && (cur_step < steps)) {
1764                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5f) < 0) /* Demod RESET */
1765                         goto err;
1766                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
1767                         goto err;
1768                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
1769                         goto err;
1770                 if (STV090x_WRITE_DEMOD(state, SFRINIT1, 0x00) < 0)
1771                         goto err;
1772                 if (STV090x_WRITE_DEMOD(state, SFRINIT0, 0x00) < 0)
1773                         goto err;
1774                 /* trigger acquisition */
1775                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x40) < 0)
1776                         goto err;
1777                 msleep(50);
1778                 for (i = 0; i < 10; i++) {
1779                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1780                         if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
1781                                 tmg_cpt++;
1782                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
1783                                 STV090x_READ_DEMOD(state, AGC2I0);
1784                 }
1785                 agc2 /= 10;
1786                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1787                 cur_step++;
1788                 dir *= -1;
1789                 if ((tmg_cpt >= 5) && (agc2 < agc2th) &&
1790                     (srate_coarse < 50000000) && (srate_coarse > 850000))
1791                         tmg_lock = 1;
1792                 else if (cur_step < steps) {
1793                         if (dir > 0)
1794                                 freq += cur_step * car_step;
1795                         else
1796                                 freq -= cur_step * car_step;
1797
1798                         /* Setup tuner */
1799                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1800                                 goto err;
1801
1802                         if (state->config->tuner_set_frequency) {
1803                                 if (state->config->tuner_set_frequency(fe, freq) < 0)
1804                                         goto err_gateoff;
1805                         }
1806
1807                         if (state->config->tuner_set_bandwidth) {
1808                                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
1809                                         goto err_gateoff;
1810                         }
1811
1812                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1813                                 goto err;
1814
1815                         msleep(50);
1816
1817                         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
1818                                 goto err;
1819
1820                         if (state->config->tuner_get_status) {
1821                                 if (state->config->tuner_get_status(fe, &reg) < 0)
1822                                         goto err_gateoff;
1823                         }
1824
1825                         if (reg)
1826                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
1827                         else
1828                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
1829
1830                         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
1831                                 goto err;
1832
1833                 }
1834         }
1835         if (!tmg_lock)
1836                 srate_coarse = 0;
1837         else
1838                 srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1839
1840         return srate_coarse;
1841
1842 err_gateoff:
1843         stv090x_i2c_gate_ctrl(state, 0);
1844 err:
1845         dprintk(FE_ERROR, 1, "I/O error");
1846         return -1;
1847 }
1848
1849 static u32 stv090x_srate_srch_fine(struct stv090x_state *state)
1850 {
1851         u32 srate_coarse, freq_coarse, sym, reg;
1852
1853         srate_coarse = stv090x_get_srate(state, state->internal->mclk);
1854         freq_coarse  = STV090x_READ_DEMOD(state, CFR2) << 8;
1855         freq_coarse |= STV090x_READ_DEMOD(state, CFR1);
1856         sym = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1857
1858         if (sym < state->srate)
1859                 srate_coarse = 0;
1860         else {
1861                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0) /* Demod RESET */
1862                         goto err;
1863                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
1864                         goto err;
1865                 if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
1866                         goto err;
1867                 if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
1868                         goto err;
1869                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
1870                         goto err;
1871                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
1872                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
1873                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
1874                         goto err;
1875
1876                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
1877                         goto err;
1878
1879                 if (state->internal->dev_ver >= 0x30) {
1880                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x79) < 0)
1881                                 goto err;
1882                 } else if (state->internal->dev_ver >= 0x20) {
1883                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
1884                                 goto err;
1885                 }
1886
1887                 if (srate_coarse > 3000000) {
1888                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1889                         sym  = (sym / 1000) * 65536;
1890                         sym /= (state->internal->mclk / 1000);
1891                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1892                                 goto err;
1893                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1894                                 goto err;
1895                         sym  = 10 * (srate_coarse / 13); /* SFRLOW = SFR - 30% */
1896                         sym  = (sym / 1000) * 65536;
1897                         sym /= (state->internal->mclk / 1000);
1898                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1899                                 goto err;
1900                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1901                                 goto err;
1902                         sym  = (srate_coarse / 1000) * 65536;
1903                         sym /= (state->internal->mclk / 1000);
1904                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1905                                 goto err;
1906                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1907                                 goto err;
1908                 } else {
1909                         sym  = 13 * (srate_coarse / 10); /* SFRUP = SFR + 30% */
1910                         sym  = (sym / 100) * 65536;
1911                         sym /= (state->internal->mclk / 100);
1912                         if (STV090x_WRITE_DEMOD(state, SFRUP1, (sym >> 8) & 0x7f) < 0)
1913                                 goto err;
1914                         if (STV090x_WRITE_DEMOD(state, SFRUP0, sym & 0xff) < 0)
1915                                 goto err;
1916                         sym  = 10 * (srate_coarse / 14); /* SFRLOW = SFR - 30% */
1917                         sym  = (sym / 100) * 65536;
1918                         sym /= (state->internal->mclk / 100);
1919                         if (STV090x_WRITE_DEMOD(state, SFRLOW1, (sym >> 8) & 0x7f) < 0)
1920                                 goto err;
1921                         if (STV090x_WRITE_DEMOD(state, SFRLOW0, sym & 0xff) < 0)
1922                                 goto err;
1923                         sym  = (srate_coarse / 100) * 65536;
1924                         sym /= (state->internal->mclk / 100);
1925                         if (STV090x_WRITE_DEMOD(state, SFRINIT1, (sym >> 8) & 0xff) < 0)
1926                                 goto err;
1927                         if (STV090x_WRITE_DEMOD(state, SFRINIT0, sym & 0xff) < 0)
1928                                 goto err;
1929                 }
1930                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
1931                         goto err;
1932                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, (freq_coarse >> 8) & 0xff) < 0)
1933                         goto err;
1934                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, freq_coarse & 0xff) < 0)
1935                         goto err;
1936                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0) /* trigger acquisition */
1937                         goto err;
1938         }
1939
1940         return srate_coarse;
1941
1942 err:
1943         dprintk(FE_ERROR, 1, "I/O error");
1944         return -1;
1945 }
1946
1947 static int stv090x_get_dmdlock(struct stv090x_state *state, s32 timeout)
1948 {
1949         s32 timer = 0, lock = 0;
1950         u32 reg;
1951         u8 stat;
1952
1953         while ((timer < timeout) && (!lock)) {
1954                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
1955                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
1956
1957                 switch (stat) {
1958                 case 0: /* searching */
1959                 case 1: /* first PLH detected */
1960                 default:
1961                         dprintk(FE_DEBUG, 1, "Demodulator searching ..");
1962                         lock = 0;
1963                         break;
1964                 case 2: /* DVB-S2 mode */
1965                 case 3: /* DVB-S1/legacy mode */
1966                         reg = STV090x_READ_DEMOD(state, DSTATUS);
1967                         lock = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
1968                         break;
1969                 }
1970
1971                 if (!lock)
1972                         msleep(10);
1973                 else
1974                         dprintk(FE_DEBUG, 1, "Demodulator acquired LOCK");
1975
1976                 timer += 10;
1977         }
1978         return lock;
1979 }
1980
1981 static int stv090x_blind_search(struct stv090x_state *state)
1982 {
1983         u32 agc2, reg, srate_coarse;
1984         s32 cpt_fail, agc2_ovflw, i;
1985         u8 k_ref, k_max, k_min;
1986         int coarse_fail = 0;
1987         int lock;
1988
1989         k_max = 110;
1990         k_min = 10;
1991
1992         agc2 = stv090x_get_agc2_min_level(state);
1993
1994         if (agc2 > STV090x_SEARCH_AGC2_TH(state->internal->dev_ver)) {
1995                 lock = 0;
1996         } else {
1997
1998                 if (state->internal->dev_ver <= 0x20) {
1999                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0xc4) < 0)
2000                                 goto err;
2001                 } else {
2002                         /* > Cut 3 */
2003                         if (STV090x_WRITE_DEMOD(state, CARCFG, 0x06) < 0)
2004                                 goto err;
2005                 }
2006
2007                 if (STV090x_WRITE_DEMOD(state, RTCS2, 0x44) < 0)
2008                         goto err;
2009
2010                 if (state->internal->dev_ver >= 0x20) {
2011                         if (STV090x_WRITE_DEMOD(state, EQUALCFG, 0x41) < 0)
2012                                 goto err;
2013                         if (STV090x_WRITE_DEMOD(state, FFECFG, 0x41) < 0)
2014                                 goto err;
2015                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x82) < 0)
2016                                 goto err;
2017                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x00) < 0) /* set viterbi hysteresis */
2018                                 goto err;
2019                 }
2020
2021                 k_ref = k_max;
2022                 do {
2023                         if (STV090x_WRITE_DEMOD(state, KREFTMG, k_ref) < 0)
2024                                 goto err;
2025                         if (stv090x_srate_srch_coarse(state) != 0) {
2026                                 srate_coarse = stv090x_srate_srch_fine(state);
2027                                 if (srate_coarse != 0) {
2028                                         stv090x_get_lock_tmg(state);
2029                                         lock = stv090x_get_dmdlock(state,
2030                                                         state->DemodTimeout);
2031                                 } else {
2032                                         lock = 0;
2033                                 }
2034                         } else {
2035                                 cpt_fail = 0;
2036                                 agc2_ovflw = 0;
2037                                 for (i = 0; i < 10; i++) {
2038                                         agc2 += (STV090x_READ_DEMOD(state, AGC2I1) << 8) |
2039                                                 STV090x_READ_DEMOD(state, AGC2I0);
2040                                         if (agc2 >= 0xff00)
2041                                                 agc2_ovflw++;
2042                                         reg = STV090x_READ_DEMOD(state, DSTATUS2);
2043                                         if ((STV090x_GETFIELD_Px(reg, CFR_OVERFLOW_FIELD) == 0x01) &&
2044                                             (STV090x_GETFIELD_Px(reg, DEMOD_DELOCK_FIELD) == 0x01))
2045
2046                                                 cpt_fail++;
2047                                 }
2048                                 if ((cpt_fail > 7) || (agc2_ovflw > 7))
2049                                         coarse_fail = 1;
2050
2051                                 lock = 0;
2052                         }
2053                         k_ref -= 20;
2054                 } while ((k_ref >= k_min) && (!lock) && (!coarse_fail));
2055         }
2056
2057         return lock;
2058
2059 err:
2060         dprintk(FE_ERROR, 1, "I/O error");
2061         return -1;
2062 }
2063
2064 static int stv090x_chk_tmg(struct stv090x_state *state)
2065 {
2066         u32 reg;
2067         s32 tmg_cpt = 0, i;
2068         u8 freq, tmg_thh, tmg_thl;
2069         int tmg_lock = 0;
2070
2071         freq = STV090x_READ_DEMOD(state, CARFREQ);
2072         tmg_thh = STV090x_READ_DEMOD(state, TMGTHRISE);
2073         tmg_thl = STV090x_READ_DEMOD(state, TMGTHFALL);
2074         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, 0x20) < 0)
2075                 goto err;
2076         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, 0x00) < 0)
2077                 goto err;
2078
2079         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2080         STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00); /* stop carrier offset search */
2081         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2082                 goto err;
2083         if (STV090x_WRITE_DEMOD(state, RTC, 0x80) < 0)
2084                 goto err;
2085
2086         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x40) < 0)
2087                 goto err;
2088         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x00) < 0)
2089                 goto err;
2090
2091         if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0) /* set car ofset to 0 */
2092                 goto err;
2093         if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2094                 goto err;
2095         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x65) < 0)
2096                 goto err;
2097
2098         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0) /* trigger acquisition */
2099                 goto err;
2100         msleep(10);
2101
2102         for (i = 0; i < 10; i++) {
2103                 reg = STV090x_READ_DEMOD(state, DSTATUS);
2104                 if (STV090x_GETFIELD_Px(reg, TMGLOCK_QUALITY_FIELD) >= 2)
2105                         tmg_cpt++;
2106                 msleep(1);
2107         }
2108         if (tmg_cpt >= 3)
2109                 tmg_lock = 1;
2110
2111         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2112                 goto err;
2113         if (STV090x_WRITE_DEMOD(state, RTC, 0x88) < 0) /* DVB-S1 timing */
2114                 goto err;
2115         if (STV090x_WRITE_DEMOD(state, RTCS2, 0x68) < 0) /* DVB-S2 timing */
2116                 goto err;
2117
2118         if (STV090x_WRITE_DEMOD(state, CARFREQ, freq) < 0)
2119                 goto err;
2120         if (STV090x_WRITE_DEMOD(state, TMGTHRISE, tmg_thh) < 0)
2121                 goto err;
2122         if (STV090x_WRITE_DEMOD(state, TMGTHFALL, tmg_thl) < 0)
2123                 goto err;
2124
2125         return  tmg_lock;
2126
2127 err:
2128         dprintk(FE_ERROR, 1, "I/O error");
2129         return -1;
2130 }
2131
2132 static int stv090x_get_coldlock(struct stv090x_state *state, s32 timeout_dmd)
2133 {
2134         struct dvb_frontend *fe = &state->frontend;
2135
2136         u32 reg;
2137         s32 car_step, steps, cur_step, dir, freq, timeout_lock;
2138         int lock;
2139
2140         if (state->srate >= 10000000)
2141                 timeout_lock = timeout_dmd / 3;
2142         else
2143                 timeout_lock = timeout_dmd / 2;
2144
2145         lock = stv090x_get_dmdlock(state, timeout_lock); /* cold start wait */
2146         if (lock)
2147                 return lock;
2148
2149         if (state->srate >= 10000000) {
2150                 if (stv090x_chk_tmg(state)) {
2151                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2152                                 goto err;
2153                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2154                                 goto err;
2155                         return stv090x_get_dmdlock(state, timeout_dmd);
2156                 }
2157                 return 0;
2158         }
2159
2160         if (state->srate <= 4000000)
2161                 car_step = 1000;
2162         else if (state->srate <= 7000000)
2163                 car_step = 2000;
2164         else if (state->srate <= 10000000)
2165                 car_step = 3000;
2166         else
2167                 car_step = 5000;
2168
2169         steps  = (state->search_range / 1000) / car_step;
2170         steps /= 2;
2171         steps  = 2 * (steps + 1);
2172         if (steps < 0)
2173                 steps = 2;
2174         else if (steps > 12)
2175                 steps = 12;
2176
2177         cur_step = 1;
2178         dir = 1;
2179
2180         freq = state->frequency;
2181         state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + state->srate;
2182         while ((cur_step <= steps) && (!lock)) {
2183                 if (dir > 0)
2184                         freq += cur_step * car_step;
2185                 else
2186                         freq -= cur_step * car_step;
2187
2188                 /* Setup tuner */
2189                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2190                         goto err;
2191
2192                 if (state->config->tuner_set_frequency) {
2193                         if (state->config->tuner_set_frequency(fe, freq) < 0)
2194                                 goto err_gateoff;
2195                 }
2196
2197                 if (state->config->tuner_set_bandwidth) {
2198                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
2199                                 goto err_gateoff;
2200                 }
2201
2202                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2203                         goto err;
2204
2205                 msleep(50);
2206
2207                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2208                         goto err;
2209
2210                 if (state->config->tuner_get_status) {
2211                         if (state->config->tuner_get_status(fe, &reg) < 0)
2212                                 goto err_gateoff;
2213                         if (reg)
2214                                 dprintk(FE_DEBUG, 1, "Tuner phase locked");
2215                         else
2216                                 dprintk(FE_DEBUG, 1, "Tuner unlocked");
2217                 }
2218
2219                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2220                         goto err;
2221
2222                 STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c);
2223                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, 0x00) < 0)
2224                         goto err;
2225                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, 0x00) < 0)
2226                         goto err;
2227                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
2228                         goto err;
2229                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x15) < 0)
2230                         goto err;
2231                 lock = stv090x_get_dmdlock(state, (timeout_dmd / 3));
2232
2233                 dir *= -1;
2234                 cur_step++;
2235         }
2236
2237         return lock;
2238
2239 err_gateoff:
2240         stv090x_i2c_gate_ctrl(state, 0);
2241 err:
2242         dprintk(FE_ERROR, 1, "I/O error");
2243         return -1;
2244 }
2245
2246 static int stv090x_get_loop_params(struct stv090x_state *state, s32 *freq_inc, s32 *timeout_sw, s32 *steps)
2247 {
2248         s32 timeout, inc, steps_max, srate, car_max;
2249
2250         srate = state->srate;
2251         car_max = state->search_range / 1000;
2252         car_max += car_max / 10;
2253         car_max  = 65536 * (car_max / 2);
2254         car_max /= (state->internal->mclk / 1000);
2255
2256         if (car_max > 0x4000)
2257                 car_max = 0x4000 ; /* maxcarrier should be<= +-1/4 Mclk */
2258
2259         inc  = srate;
2260         inc /= state->internal->mclk / 1000;
2261         inc *= 256;
2262         inc *= 256;
2263         inc /= 1000;
2264
2265         switch (state->search_mode) {
2266         case STV090x_SEARCH_DVBS1:
2267         case STV090x_SEARCH_DSS:
2268                 inc *= 3; /* freq step = 3% of srate */
2269                 timeout = 20;
2270                 break;
2271
2272         case STV090x_SEARCH_DVBS2:
2273                 inc *= 4;
2274                 timeout = 25;
2275                 break;
2276
2277         case STV090x_SEARCH_AUTO:
2278         default:
2279                 inc *= 3;
2280                 timeout = 25;
2281                 break;
2282         }
2283         inc /= 100;
2284         if ((inc > car_max) || (inc < 0))
2285                 inc = car_max / 2; /* increment <= 1/8 Mclk */
2286
2287         timeout *= 27500; /* 27.5 Msps reference */
2288         if (srate > 0)
2289                 timeout /= (srate / 1000);
2290
2291         if ((timeout > 100) || (timeout < 0))
2292                 timeout = 100;
2293
2294         steps_max = (car_max / inc) + 1; /* min steps = 3 */
2295         if ((steps_max > 100) || (steps_max < 0)) {
2296                 steps_max = 100; /* max steps <= 100 */
2297                 inc = car_max / steps_max;
2298         }
2299         *freq_inc = inc;
2300         *timeout_sw = timeout;
2301         *steps = steps_max;
2302
2303         return 0;
2304 }
2305
2306 static int stv090x_chk_signal(struct stv090x_state *state)
2307 {
2308         s32 offst_car, agc2, car_max;
2309         int no_signal;
2310
2311         offst_car  = STV090x_READ_DEMOD(state, CFR2) << 8;
2312         offst_car |= STV090x_READ_DEMOD(state, CFR1);
2313         offst_car = comp2(offst_car, 16);
2314
2315         agc2  = STV090x_READ_DEMOD(state, AGC2I1) << 8;
2316         agc2 |= STV090x_READ_DEMOD(state, AGC2I0);
2317         car_max = state->search_range / 1000;
2318
2319         car_max += (car_max / 10); /* 10% margin */
2320         car_max  = (65536 * car_max / 2);
2321         car_max /= state->internal->mclk / 1000;
2322
2323         if (car_max > 0x4000)
2324                 car_max = 0x4000;
2325
2326         if ((agc2 > 0x2000) || (offst_car > 2 * car_max) || (offst_car < -2 * car_max)) {
2327                 no_signal = 1;
2328                 dprintk(FE_DEBUG, 1, "No Signal");
2329         } else {
2330                 no_signal = 0;
2331                 dprintk(FE_DEBUG, 1, "Found Signal");
2332         }
2333
2334         return no_signal;
2335 }
2336
2337 static int stv090x_search_car_loop(struct stv090x_state *state, s32 inc, s32 timeout, int zigzag, s32 steps_max)
2338 {
2339         int no_signal, lock = 0;
2340         s32 cpt_step = 0, offst_freq, car_max;
2341         u32 reg;
2342
2343         car_max  = state->search_range / 1000;
2344         car_max += (car_max / 10);
2345         car_max  = (65536 * car_max / 2);
2346         car_max /= (state->internal->mclk / 1000);
2347         if (car_max > 0x4000)
2348                 car_max = 0x4000;
2349
2350         if (zigzag)
2351                 offst_freq = 0;
2352         else
2353                 offst_freq = -car_max + inc;
2354
2355         do {
2356                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1c) < 0)
2357                         goto err;
2358                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, ((offst_freq / 256) & 0xff)) < 0)
2359                         goto err;
2360                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, offst_freq & 0xff) < 0)
2361                         goto err;
2362                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
2363                         goto err;
2364
2365                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2366                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x1); /* stop DVB-S2 packet delin */
2367                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2368                         goto err;
2369
2370                 if (zigzag) {
2371                         if (offst_freq >= 0)
2372                                 offst_freq = -offst_freq - 2 * inc;
2373                         else
2374                                 offst_freq = -offst_freq;
2375                 } else {
2376                         offst_freq += 2 * inc;
2377                 }
2378
2379                 cpt_step++;
2380
2381                 lock = stv090x_get_dmdlock(state, timeout);
2382                 no_signal = stv090x_chk_signal(state);
2383
2384         } while ((!lock) &&
2385                  (!no_signal) &&
2386                   ((offst_freq - inc) < car_max) &&
2387                   ((offst_freq + inc) > -car_max) &&
2388                   (cpt_step < steps_max));
2389
2390         reg = STV090x_READ_DEMOD(state, PDELCTRL1);
2391         STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0);
2392         if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
2393                         goto err;
2394
2395         return lock;
2396 err:
2397         dprintk(FE_ERROR, 1, "I/O error");
2398         return -1;
2399 }
2400
2401 static int stv090x_sw_algo(struct stv090x_state *state)
2402 {
2403         int no_signal, zigzag, lock = 0;
2404         u32 reg;
2405
2406         s32 dvbs2_fly_wheel;
2407         s32 inc, timeout_step, trials, steps_max;
2408
2409         /* get params */
2410         stv090x_get_loop_params(state, &inc, &timeout_step, &steps_max);
2411
2412         switch (state->search_mode) {
2413         case STV090x_SEARCH_DVBS1:
2414         case STV090x_SEARCH_DSS:
2415                 /* accelerate the frequency detector */
2416                 if (state->internal->dev_ver >= 0x20) {
2417                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3B) < 0)
2418                                 goto err;
2419                 }
2420
2421                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x49) < 0)
2422                         goto err;
2423                 zigzag = 0;
2424                 break;
2425
2426         case STV090x_SEARCH_DVBS2:
2427                 if (state->internal->dev_ver >= 0x20) {
2428                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2429                                 goto err;
2430                 }
2431
2432                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2433                         goto err;
2434                 zigzag = 1;
2435                 break;
2436
2437         case STV090x_SEARCH_AUTO:
2438         default:
2439                 /* accelerate the frequency detector */
2440                 if (state->internal->dev_ver >= 0x20) {
2441                         if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x3b) < 0)
2442                                 goto err;
2443                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2444                                 goto err;
2445                 }
2446
2447                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0xc9) < 0)
2448                         goto err;
2449                 zigzag = 0;
2450                 break;
2451         }
2452
2453         trials = 0;
2454         do {
2455                 lock = stv090x_search_car_loop(state, inc, timeout_step, zigzag, steps_max);
2456                 no_signal = stv090x_chk_signal(state);
2457                 trials++;
2458
2459                 /*run the SW search 2 times maximum*/
2460                 if (lock || no_signal || (trials == 2)) {
2461                         /*Check if the demod is not losing lock in DVBS2*/
2462                         if (state->internal->dev_ver >= 0x20) {
2463                                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
2464                                         goto err;
2465                                 if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
2466                                         goto err;
2467                         }
2468
2469                         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2470                         if ((lock) && (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == STV090x_DVBS2)) {
2471                                 /*Check if the demod is not losing lock in DVBS2*/
2472                                 msleep(timeout_step);
2473                                 reg = STV090x_READ_DEMOD(state, DMDFLYW);
2474                                 dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2475                                 if (dvbs2_fly_wheel < 0xd) {     /*if correct frames is decrementing */
2476                                         msleep(timeout_step);
2477                                         reg = STV090x_READ_DEMOD(state, DMDFLYW);
2478                                         dvbs2_fly_wheel = STV090x_GETFIELD_Px(reg, FLYWHEEL_CPT_FIELD);
2479                                 }
2480                                 if (dvbs2_fly_wheel < 0xd) {
2481                                         /*FALSE lock, The demod is losing lock */
2482                                         lock = 0;
2483                                         if (trials < 2) {
2484                                                 if (state->internal->dev_ver >= 0x20) {
2485                                                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x79) < 0)
2486                                                                 goto err;
2487                                                 }
2488
2489                                                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, 0x89) < 0)
2490                                                         goto err;
2491                                         }
2492                                 }
2493                         }
2494                 }
2495         } while ((!lock) && (trials < 2) && (!no_signal));
2496
2497         return lock;
2498 err:
2499         dprintk(FE_ERROR, 1, "I/O error");
2500         return -1;
2501 }
2502
2503 static enum stv090x_delsys stv090x_get_std(struct stv090x_state *state)
2504 {
2505         u32 reg;
2506         enum stv090x_delsys delsys;
2507
2508         reg = STV090x_READ_DEMOD(state, DMDSTATE);
2509         if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 2)
2510                 delsys = STV090x_DVBS2;
2511         else if (STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD) == 3) {
2512                 reg = STV090x_READ_DEMOD(state, FECM);
2513                 if (STV090x_GETFIELD_Px(reg, DSS_DVB_FIELD) == 1)
2514                         delsys = STV090x_DSS;
2515                 else
2516                         delsys = STV090x_DVBS1;
2517         } else {
2518                 delsys = STV090x_ERROR;
2519         }
2520
2521         return delsys;
2522 }
2523
2524 /* in Hz */
2525 static s32 stv090x_get_car_freq(struct stv090x_state *state, u32 mclk)
2526 {
2527         s32 derot, int_1, int_2, tmp_1, tmp_2;
2528
2529         derot  = STV090x_READ_DEMOD(state, CFR2) << 16;
2530         derot |= STV090x_READ_DEMOD(state, CFR1) <<  8;
2531         derot |= STV090x_READ_DEMOD(state, CFR0);
2532
2533         derot = comp2(derot, 24);
2534         int_1 = mclk >> 12;
2535         int_2 = derot >> 12;
2536
2537         /* carrier_frequency = MasterClock * Reg / 2^24 */
2538         tmp_1 = mclk % 0x1000;
2539         tmp_2 = derot % 0x1000;
2540
2541         derot = (int_1 * int_2) +
2542                 ((int_1 * tmp_2) >> 12) +
2543                 ((int_2 * tmp_1) >> 12);
2544
2545         return derot;
2546 }
2547
2548 static int stv090x_get_viterbi(struct stv090x_state *state)
2549 {
2550         u32 reg, rate;
2551
2552         reg = STV090x_READ_DEMOD(state, VITCURPUN);
2553         rate = STV090x_GETFIELD_Px(reg, VIT_CURPUN_FIELD);
2554
2555         switch (rate) {
2556         case 13:
2557                 state->fec = STV090x_PR12;
2558                 break;
2559
2560         case 18:
2561                 state->fec = STV090x_PR23;
2562                 break;
2563
2564         case 21:
2565                 state->fec = STV090x_PR34;
2566                 break;
2567
2568         case 24:
2569                 state->fec = STV090x_PR56;
2570                 break;
2571
2572         case 25:
2573                 state->fec = STV090x_PR67;
2574                 break;
2575
2576         case 26:
2577                 state->fec = STV090x_PR78;
2578                 break;
2579
2580         default:
2581                 state->fec = STV090x_PRERR;
2582                 break;
2583         }
2584
2585         return 0;
2586 }
2587
2588 static enum stv090x_signal_state stv090x_get_sig_params(struct stv090x_state *state)
2589 {
2590         struct dvb_frontend *fe = &state->frontend;
2591
2592         u8 tmg;
2593         u32 reg;
2594         s32 i = 0, offst_freq;
2595
2596         msleep(5);
2597
2598         if (state->algo == STV090x_BLIND_SEARCH) {
2599                 tmg = STV090x_READ_DEMOD(state, TMGREG2);
2600                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x5c);
2601                 while ((i <= 50) && (tmg != 0) && (tmg != 0xff)) {
2602                         tmg = STV090x_READ_DEMOD(state, TMGREG2);
2603                         msleep(5);
2604                         i += 5;
2605                 }
2606         }
2607         state->delsys = stv090x_get_std(state);
2608
2609         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2610                 goto err;
2611
2612         if (state->config->tuner_get_frequency) {
2613                 if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2614                         goto err_gateoff;
2615         }
2616
2617         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2618                 goto err;
2619
2620         offst_freq = stv090x_get_car_freq(state, state->internal->mclk) / 1000;
2621         state->frequency += offst_freq;
2622
2623         if (stv090x_get_viterbi(state) < 0)
2624                 goto err;
2625
2626         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2627         state->modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2628         state->pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2629         state->frame_len = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) >> 1;
2630         reg = STV090x_READ_DEMOD(state, TMGOBS);
2631         state->rolloff = STV090x_GETFIELD_Px(reg, ROLLOFF_STATUS_FIELD);
2632         reg = STV090x_READ_DEMOD(state, FECM);
2633         state->inversion = STV090x_GETFIELD_Px(reg, IQINV_FIELD);
2634
2635         if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000)) {
2636
2637                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
2638                         goto err;
2639
2640                 if (state->config->tuner_get_frequency) {
2641                         if (state->config->tuner_get_frequency(fe, &state->frequency) < 0)
2642                                 goto err_gateoff;
2643                 }
2644
2645                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
2646                         goto err;
2647
2648                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2649                         return STV090x_RANGEOK;
2650                 else if (abs(offst_freq) <= (stv090x_car_width(state->srate, state->rolloff) / 2000))
2651                         return STV090x_RANGEOK;
2652         } else {
2653                 if (abs(offst_freq) <= ((state->search_range / 2000) + 500))
2654                         return STV090x_RANGEOK;
2655         }
2656
2657         return STV090x_OUTOFRANGE;
2658
2659 err_gateoff:
2660         stv090x_i2c_gate_ctrl(state, 0);
2661 err:
2662         dprintk(FE_ERROR, 1, "I/O error");
2663         return -1;
2664 }
2665
2666 static u32 stv090x_get_tmgoffst(struct stv090x_state *state, u32 srate)
2667 {
2668         s32 offst_tmg;
2669
2670         offst_tmg  = STV090x_READ_DEMOD(state, TMGREG2) << 16;
2671         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG1) <<  8;
2672         offst_tmg |= STV090x_READ_DEMOD(state, TMGREG0);
2673
2674         offst_tmg = comp2(offst_tmg, 24); /* 2's complement */
2675         if (!offst_tmg)
2676                 offst_tmg = 1;
2677
2678         offst_tmg  = ((s32) srate * 10) / ((s32) 0x1000000 / offst_tmg);
2679         offst_tmg /= 320;
2680
2681         return offst_tmg;
2682 }
2683
2684 static u8 stv090x_optimize_carloop(struct stv090x_state *state, enum stv090x_modcod modcod, s32 pilots)
2685 {
2686         u8 aclc = 0x29;
2687         s32 i;
2688         struct stv090x_long_frame_crloop *car_loop, *car_loop_qpsk_low, *car_loop_apsk_low;
2689
2690         if (state->internal->dev_ver == 0x20) {
2691                 car_loop                = stv090x_s2_crl_cut20;
2692                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut20;
2693                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut20;
2694         } else {
2695                 /* >= Cut 3 */
2696                 car_loop                = stv090x_s2_crl_cut30;
2697                 car_loop_qpsk_low       = stv090x_s2_lowqpsk_crl_cut30;
2698                 car_loop_apsk_low       = stv090x_s2_apsk_crl_cut30;
2699         }
2700
2701         if (modcod < STV090x_QPSK_12) {
2702                 i = 0;
2703                 while ((i < 3) && (modcod != car_loop_qpsk_low[i].modcod))
2704                         i++;
2705
2706                 if (i >= 3)
2707                         i = 2;
2708
2709         } else {
2710                 i = 0;
2711                 while ((i < 14) && (modcod != car_loop[i].modcod))
2712                         i++;
2713
2714                 if (i >= 14) {
2715                         i = 0;
2716                         while ((i < 11) && (modcod != car_loop_apsk_low[i].modcod))
2717                                 i++;
2718
2719                         if (i >= 11)
2720                                 i = 10;
2721                 }
2722         }
2723
2724         if (modcod <= STV090x_QPSK_25) {
2725                 if (pilots) {
2726                         if (state->srate <= 3000000)
2727                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_2;
2728                         else if (state->srate <= 7000000)
2729                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_5;
2730                         else if (state->srate <= 15000000)
2731                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_10;
2732                         else if (state->srate <= 25000000)
2733                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_20;
2734                         else
2735                                 aclc = car_loop_qpsk_low[i].crl_pilots_on_30;
2736                 } else {
2737                         if (state->srate <= 3000000)
2738                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_2;
2739                         else if (state->srate <= 7000000)
2740                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_5;
2741                         else if (state->srate <= 15000000)
2742                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_10;
2743                         else if (state->srate <= 25000000)
2744                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_20;
2745                         else
2746                                 aclc = car_loop_qpsk_low[i].crl_pilots_off_30;
2747                 }
2748
2749         } else if (modcod <= STV090x_8PSK_910) {
2750                 if (pilots) {
2751                         if (state->srate <= 3000000)
2752                                 aclc = car_loop[i].crl_pilots_on_2;
2753                         else if (state->srate <= 7000000)
2754                                 aclc = car_loop[i].crl_pilots_on_5;
2755                         else if (state->srate <= 15000000)
2756                                 aclc = car_loop[i].crl_pilots_on_10;
2757                         else if (state->srate <= 25000000)
2758                                 aclc = car_loop[i].crl_pilots_on_20;
2759                         else
2760                                 aclc = car_loop[i].crl_pilots_on_30;
2761                 } else {
2762                         if (state->srate <= 3000000)
2763                                 aclc = car_loop[i].crl_pilots_off_2;
2764                         else if (state->srate <= 7000000)
2765                                 aclc = car_loop[i].crl_pilots_off_5;
2766                         else if (state->srate <= 15000000)
2767                                 aclc = car_loop[i].crl_pilots_off_10;
2768                         else if (state->srate <= 25000000)
2769                                 aclc = car_loop[i].crl_pilots_off_20;
2770                         else
2771                                 aclc = car_loop[i].crl_pilots_off_30;
2772                 }
2773         } else { /* 16APSK and 32APSK */
2774                 /*
2775                  * This should never happen in practice, except if
2776                  * something is really wrong at the car_loop table.
2777                  */
2778                 if (i >= 11)
2779                         i = 10;
2780                 if (state->srate <= 3000000)
2781                         aclc = car_loop_apsk_low[i].crl_pilots_on_2;
2782                 else if (state->srate <= 7000000)
2783                         aclc = car_loop_apsk_low[i].crl_pilots_on_5;
2784                 else if (state->srate <= 15000000)
2785                         aclc = car_loop_apsk_low[i].crl_pilots_on_10;
2786                 else if (state->srate <= 25000000)
2787                         aclc = car_loop_apsk_low[i].crl_pilots_on_20;
2788                 else
2789                         aclc = car_loop_apsk_low[i].crl_pilots_on_30;
2790         }
2791
2792         return aclc;
2793 }
2794
2795 static u8 stv090x_optimize_carloop_short(struct stv090x_state *state)
2796 {
2797         struct stv090x_short_frame_crloop *short_crl = NULL;
2798         s32 index = 0;
2799         u8 aclc = 0x0b;
2800
2801         switch (state->modulation) {
2802         case STV090x_QPSK:
2803         default:
2804                 index = 0;
2805                 break;
2806         case STV090x_8PSK:
2807                 index = 1;
2808                 break;
2809         case STV090x_16APSK:
2810                 index = 2;
2811                 break;
2812         case STV090x_32APSK:
2813                 index = 3;
2814                 break;
2815         }
2816
2817         if (state->internal->dev_ver >= 0x30) {
2818                 /* Cut 3.0 and up */
2819                 short_crl = stv090x_s2_short_crl_cut30;
2820         } else {
2821                 /* Cut 2.0 and up: we don't support cuts older than 2.0 */
2822                 short_crl = stv090x_s2_short_crl_cut20;
2823         }
2824
2825         if (state->srate <= 3000000)
2826                 aclc = short_crl[index].crl_2;
2827         else if (state->srate <= 7000000)
2828                 aclc = short_crl[index].crl_5;
2829         else if (state->srate <= 15000000)
2830                 aclc = short_crl[index].crl_10;
2831         else if (state->srate <= 25000000)
2832                 aclc = short_crl[index].crl_20;
2833         else
2834                 aclc = short_crl[index].crl_30;
2835
2836         return aclc;
2837 }
2838
2839 static int stv090x_optimize_track(struct stv090x_state *state)
2840 {
2841         struct dvb_frontend *fe = &state->frontend;
2842
2843         enum stv090x_modcod modcod;
2844
2845         s32 srate, pilots, aclc, f_1, f_0, i = 0, blind_tune = 0;
2846         u32 reg;
2847
2848         srate  = stv090x_get_srate(state, state->internal->mclk);
2849         srate += stv090x_get_tmgoffst(state, srate);
2850
2851         switch (state->delsys) {
2852         case STV090x_DVBS1:
2853         case STV090x_DSS:
2854                 if (state->search_mode == STV090x_SEARCH_AUTO) {
2855                         reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2856                         STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2857                         STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 0);
2858                         if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2859                                 goto err;
2860                 }
2861                 reg = STV090x_READ_DEMOD(state, DEMOD);
2862                 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
2863                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x01);
2864                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
2865                         goto err;
2866
2867                 if (state->internal->dev_ver >= 0x30) {
2868                         if (stv090x_get_viterbi(state) < 0)
2869                                 goto err;
2870
2871                         if (state->fec == STV090x_PR12) {
2872                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x98) < 0)
2873                                         goto err;
2874                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2875                                         goto err;
2876                         } else {
2877                                 if (STV090x_WRITE_DEMOD(state, GAUSSR0, 0x18) < 0)
2878                                         goto err;
2879                                 if (STV090x_WRITE_DEMOD(state, CCIR0, 0x18) < 0)
2880                                         goto err;
2881                         }
2882                 }
2883
2884                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
2885                         goto err;
2886                 break;
2887
2888         case STV090x_DVBS2:
2889                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2890                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 0);
2891                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2892                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2893                         goto err;
2894                 if (state->internal->dev_ver >= 0x30) {
2895                         if (STV090x_WRITE_DEMOD(state, ACLC, 0) < 0)
2896                                 goto err;
2897                         if (STV090x_WRITE_DEMOD(state, BCLC, 0) < 0)
2898                                 goto err;
2899                 }
2900                 if (state->frame_len == STV090x_LONG_FRAME) {
2901                         reg = STV090x_READ_DEMOD(state, DMDMODCOD);
2902                         modcod = STV090x_GETFIELD_Px(reg, DEMOD_MODCOD_FIELD);
2903                         pilots = STV090x_GETFIELD_Px(reg, DEMOD_TYPE_FIELD) & 0x01;
2904                         aclc = stv090x_optimize_carloop(state, modcod, pilots);
2905                         if (modcod <= STV090x_QPSK_910) {
2906                                 STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc);
2907                         } else if (modcod <= STV090x_8PSK_910) {
2908                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2909                                         goto err;
2910                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2911                                         goto err;
2912                         }
2913                         if ((state->demod_mode == STV090x_SINGLE) && (modcod > STV090x_8PSK_910)) {
2914                                 if (modcod <= STV090x_16APSK_910) {
2915                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2916                                                 goto err;
2917                                         if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2918                                                 goto err;
2919                                 } else {
2920                                         if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2921                                                 goto err;
2922                                         if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2923                                                 goto err;
2924                                 }
2925                         }
2926                 } else {
2927                         /*Carrier loop setting for short frame*/
2928                         aclc = stv090x_optimize_carloop_short(state);
2929                         if (state->modulation == STV090x_QPSK) {
2930                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, aclc) < 0)
2931                                         goto err;
2932                         } else if (state->modulation == STV090x_8PSK) {
2933                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2934                                         goto err;
2935                                 if (STV090x_WRITE_DEMOD(state, ACLC2S28, aclc) < 0)
2936                                         goto err;
2937                         } else if (state->modulation == STV090x_16APSK) {
2938                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2939                                         goto err;
2940                                 if (STV090x_WRITE_DEMOD(state, ACLC2S216A, aclc) < 0)
2941                                         goto err;
2942                         } else if (state->modulation == STV090x_32APSK)  {
2943                                 if (STV090x_WRITE_DEMOD(state, ACLC2S2Q, 0x2a) < 0)
2944                                         goto err;
2945                                 if (STV090x_WRITE_DEMOD(state, ACLC2S232A, aclc) < 0)
2946                                         goto err;
2947                         }
2948                 }
2949
2950                 STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67); /* PER */
2951                 break;
2952
2953         case STV090x_ERROR:
2954         default:
2955                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2956                 STV090x_SETFIELD_Px(reg, DVBS1_ENABLE_FIELD, 1);
2957                 STV090x_SETFIELD_Px(reg, DVBS2_ENABLE_FIELD, 1);
2958                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2959                         goto err;
2960                 break;
2961         }
2962
2963         f_1 = STV090x_READ_DEMOD(state, CFR2);
2964         f_0 = STV090x_READ_DEMOD(state, CFR1);
2965         reg = STV090x_READ_DEMOD(state, TMGOBS);
2966
2967         if (state->algo == STV090x_BLIND_SEARCH) {
2968                 STV090x_WRITE_DEMOD(state, SFRSTEP, 0x00);
2969                 reg = STV090x_READ_DEMOD(state, DMDCFGMD);
2970                 STV090x_SETFIELD_Px(reg, SCAN_ENABLE_FIELD, 0x00);
2971                 STV090x_SETFIELD_Px(reg, CFR_AUTOSCAN_FIELD, 0x00);
2972                 if (STV090x_WRITE_DEMOD(state, DMDCFGMD, reg) < 0)
2973                         goto err;
2974                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0)
2975                         goto err;
2976
2977                 if (stv090x_set_srate(state, srate) < 0)
2978                         goto err;
2979                 blind_tune = 1;
2980
2981                 if (stv090x_dvbs_track_crl(state) < 0)
2982                         goto err;
2983         }
2984
2985         if (state->internal->dev_ver >= 0x20) {
2986                 if ((state->search_mode == STV090x_SEARCH_DVBS1)        ||
2987                     (state->search_mode == STV090x_SEARCH_DSS)          ||
2988                     (state->search_mode == STV090x_SEARCH_AUTO)) {
2989
2990                         if (STV090x_WRITE_DEMOD(state, VAVSRVIT, 0x0a) < 0)
2991                                 goto err;
2992                         if (STV090x_WRITE_DEMOD(state, VITSCALE, 0x00) < 0)
2993                                 goto err;
2994                 }
2995         }
2996
2997         if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
2998                 goto err;
2999
3000         /* AUTO tracking MODE */
3001         if (STV090x_WRITE_DEMOD(state, SFRUP1, 0x80) < 0)
3002                 goto err;
3003         /* AUTO tracking MODE */
3004         if (STV090x_WRITE_DEMOD(state, SFRLOW1, 0x80) < 0)
3005                 goto err;
3006
3007         if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1) ||
3008             (state->srate < 10000000)) {
3009                 /* update initial carrier freq with the found freq offset */
3010                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3011                         goto err;
3012                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3013                         goto err;
3014                 state->tuner_bw = stv090x_car_width(srate, state->rolloff) + 10000000;
3015
3016                 if ((state->internal->dev_ver >= 0x20) || (blind_tune == 1)) {
3017
3018                         if (state->algo != STV090x_WARM_SEARCH) {
3019
3020                                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3021                                         goto err;
3022
3023                                 if (state->config->tuner_set_bandwidth) {
3024                                         if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3025                                                 goto err_gateoff;
3026                                 }
3027
3028                                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3029                                         goto err;
3030
3031                         }
3032                 }
3033                 if ((state->algo == STV090x_BLIND_SEARCH) || (state->srate < 10000000))
3034                         msleep(50); /* blind search: wait 50ms for SR stabilization */
3035                 else
3036                         msleep(5);
3037
3038                 stv090x_get_lock_tmg(state);
3039
3040                 if (!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) {
3041                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3042                                 goto err;
3043                         if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3044                                 goto err;
3045                         if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3046                                 goto err;
3047                         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3048                                 goto err;
3049
3050                         i = 0;
3051
3052                         while ((!(stv090x_get_dmdlock(state, (state->DemodTimeout / 2)))) && (i <= 2)) {
3053
3054                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x1f) < 0)
3055                                         goto err;
3056                                 if (STV090x_WRITE_DEMOD(state, CFRINIT1, f_1) < 0)
3057                                         goto err;
3058                                 if (STV090x_WRITE_DEMOD(state, CFRINIT0, f_0) < 0)
3059                                         goto err;
3060                                 if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x18) < 0)
3061                                         goto err;
3062                                 i++;
3063                         }
3064                 }
3065
3066         }
3067
3068         if (state->internal->dev_ver >= 0x20) {
3069                 if (STV090x_WRITE_DEMOD(state, CARFREQ, 0x49) < 0)
3070                         goto err;
3071         }
3072
3073         if ((state->delsys == STV090x_DVBS1) || (state->delsys == STV090x_DSS))
3074                 stv090x_set_vit_thtracq(state);
3075
3076         return 0;
3077
3078 err_gateoff:
3079         stv090x_i2c_gate_ctrl(state, 0);
3080 err:
3081         dprintk(FE_ERROR, 1, "I/O error");
3082         return -1;
3083 }
3084
3085 static int stv090x_get_feclock(struct stv090x_state *state, s32 timeout)
3086 {
3087         s32 timer = 0, lock = 0, stat;
3088         u32 reg;
3089
3090         while ((timer < timeout) && (!lock)) {
3091                 reg = STV090x_READ_DEMOD(state, DMDSTATE);
3092                 stat = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3093
3094                 switch (stat) {
3095                 case 0: /* searching */
3096                 case 1: /* first PLH detected */
3097                 default:
3098                         lock = 0;
3099                         break;
3100
3101                 case 2: /* DVB-S2 mode */
3102                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3103                         lock = STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD);
3104                         break;
3105
3106                 case 3: /* DVB-S1/legacy mode */
3107                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3108                         lock = STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD);
3109                         break;
3110                 }
3111                 if (!lock) {
3112                         msleep(10);
3113                         timer += 10;
3114                 }
3115         }
3116         return lock;
3117 }
3118
3119 static int stv090x_get_lock(struct stv090x_state *state, s32 timeout_dmd, s32 timeout_fec)
3120 {
3121         u32 reg;
3122         s32 timer = 0;
3123         int lock;
3124
3125         lock = stv090x_get_dmdlock(state, timeout_dmd);
3126         if (lock)
3127                 lock = stv090x_get_feclock(state, timeout_fec);
3128
3129         if (lock) {
3130                 lock = 0;
3131
3132                 while ((timer < timeout_fec) && (!lock)) {
3133                         reg = STV090x_READ_DEMOD(state, TSSTATUS);
3134                         lock = STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD);
3135                         msleep(1);
3136                         timer++;
3137                 }
3138         }
3139
3140         return lock;
3141 }
3142
3143 static int stv090x_set_s2rolloff(struct stv090x_state *state)
3144 {
3145         u32 reg;
3146
3147         if (state->internal->dev_ver <= 0x20) {
3148                 /* rolloff to auto mode if DVBS2 */
3149                 reg = STV090x_READ_DEMOD(state, DEMOD);
3150                 STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 0x00);
3151                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3152                         goto err;
3153         } else {
3154                 /* DVB-S2 rolloff to auto mode if DVBS2 */
3155                 reg = STV090x_READ_DEMOD(state, DEMOD);
3156                 STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 0x00);
3157                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3158                         goto err;
3159         }
3160         return 0;
3161 err:
3162         dprintk(FE_ERROR, 1, "I/O error");
3163         return -1;
3164 }
3165
3166
3167 static enum stv090x_signal_state stv090x_algo(struct stv090x_state *state)
3168 {
3169         struct dvb_frontend *fe = &state->frontend;
3170         enum stv090x_signal_state signal_state = STV090x_NOCARRIER;
3171         u32 reg;
3172         s32 agc1_power, power_iq = 0, i;
3173         int lock = 0, low_sr = 0;
3174
3175         reg = STV090x_READ_DEMOD(state, TSCFGH);
3176         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* Stop path 1 stream merger */
3177         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3178                 goto err;
3179
3180         if (STV090x_WRITE_DEMOD(state, DMDISTATE, 0x5c) < 0) /* Demod stop */
3181                 goto err;
3182
3183         if (state->internal->dev_ver >= 0x20) {
3184                 if (state->srate > 5000000) {
3185                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x9e) < 0)
3186                                 goto err;
3187                 } else {
3188                         if (STV090x_WRITE_DEMOD(state, CORRELABS, 0x82) < 0)
3189                                 goto err;
3190                 }
3191         }
3192
3193         stv090x_get_lock_tmg(state);
3194
3195         if (state->algo == STV090x_BLIND_SEARCH) {
3196                 state->tuner_bw = 2 * 36000000; /* wide bw for unknown srate */
3197                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc0) < 0) /* wider srate scan */
3198                         goto err;
3199                 if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3200                         goto err;
3201                 if (stv090x_set_srate(state, 1000000) < 0) /* initial srate = 1Msps */
3202                         goto err;
3203         } else {
3204                 /* known srate */
3205                 if (STV090x_WRITE_DEMOD(state, DMDTOM, 0x20) < 0)
3206                         goto err;
3207                 if (STV090x_WRITE_DEMOD(state, TMGCFG, 0xd2) < 0)
3208                         goto err;
3209
3210                 if (state->srate < 2000000) {
3211                         /* SR < 2MSPS */
3212                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x63) < 0)
3213                                 goto err;
3214                 } else {
3215                         /* SR >= 2Msps */
3216                         if (STV090x_WRITE_DEMOD(state, CORRELMANT, 0x70) < 0)
3217                                 goto err;
3218                 }
3219
3220                 if (STV090x_WRITE_DEMOD(state, AGC2REF, 0x38) < 0)
3221                         goto err;
3222
3223                 if (state->internal->dev_ver >= 0x20) {
3224                         if (STV090x_WRITE_DEMOD(state, KREFTMG, 0x5a) < 0)
3225                                 goto err;
3226                         if (state->algo == STV090x_COLD_SEARCH)
3227                                 state->tuner_bw = (15 * (stv090x_car_width(state->srate, state->rolloff) + 10000000)) / 10;
3228                         else if (state->algo == STV090x_WARM_SEARCH)
3229                                 state->tuner_bw = stv090x_car_width(state->srate, state->rolloff) + 10000000;
3230                 }
3231
3232                 /* if cold start or warm  (Symbolrate is known)
3233                  * use a Narrow symbol rate scan range
3234                  */
3235                 if (STV090x_WRITE_DEMOD(state, TMGCFG2, 0xc1) < 0) /* narrow srate scan */
3236                         goto err;
3237
3238                 if (stv090x_set_srate(state, state->srate) < 0)
3239                         goto err;
3240
3241                 if (stv090x_set_max_srate(state, state->internal->mclk,
3242                                           state->srate) < 0)
3243                         goto err;
3244                 if (stv090x_set_min_srate(state, state->internal->mclk,
3245                                           state->srate) < 0)
3246                         goto err;
3247
3248                 if (state->srate >= 10000000)
3249                         low_sr = 0;
3250                 else
3251                         low_sr = 1;
3252         }
3253
3254         /* Setup tuner */
3255         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3256                 goto err;
3257
3258         if (state->config->tuner_set_bbgain) {
3259                 reg = state->config->tuner_bbgain;
3260                 if (reg == 0)
3261                         reg = 10; /* default: 10dB */
3262                 if (state->config->tuner_set_bbgain(fe, reg) < 0)
3263                         goto err_gateoff;
3264         }
3265
3266         if (state->config->tuner_set_frequency) {
3267                 if (state->config->tuner_set_frequency(fe, state->frequency) < 0)
3268                         goto err_gateoff;
3269         }
3270
3271         if (state->config->tuner_set_bandwidth) {
3272                 if (state->config->tuner_set_bandwidth(fe, state->tuner_bw) < 0)
3273                         goto err_gateoff;
3274         }
3275
3276         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3277                 goto err;
3278
3279         msleep(50);
3280
3281         if (state->config->tuner_get_status) {
3282                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3283                         goto err;
3284                 if (state->config->tuner_get_status(fe, &reg) < 0)
3285                         goto err_gateoff;
3286                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3287                         goto err;
3288
3289                 if (reg)
3290                         dprintk(FE_DEBUG, 1, "Tuner phase locked");
3291                 else {
3292                         dprintk(FE_DEBUG, 1, "Tuner unlocked");
3293                         return STV090x_NOCARRIER;
3294                 }
3295         }
3296
3297         msleep(10);
3298         agc1_power = MAKEWORD16(STV090x_READ_DEMOD(state, AGCIQIN1),
3299                                 STV090x_READ_DEMOD(state, AGCIQIN0));
3300
3301         if (agc1_power == 0) {
3302                 /* If AGC1 integrator value is 0
3303                  * then read POWERI, POWERQ
3304                  */
3305                 for (i = 0; i < 5; i++) {
3306                         power_iq += (STV090x_READ_DEMOD(state, POWERI) +
3307                                      STV090x_READ_DEMOD(state, POWERQ)) >> 1;
3308                 }
3309                 power_iq /= 5;
3310         }
3311
3312         if ((agc1_power == 0) && (power_iq < STV090x_IQPOWER_THRESHOLD)) {
3313                 dprintk(FE_ERROR, 1, "No Signal: POWER_IQ=0x%02x", power_iq);
3314                 lock = 0;
3315                 signal_state = STV090x_NOAGC1;
3316         } else {
3317                 reg = STV090x_READ_DEMOD(state, DEMOD);
3318                 STV090x_SETFIELD_Px(reg, SPECINV_CONTROL_FIELD, state->inversion);
3319
3320                 if (state->internal->dev_ver <= 0x20) {
3321                         /* rolloff to auto mode if DVBS2 */
3322                         STV090x_SETFIELD_Px(reg, MANUAL_SXROLLOFF_FIELD, 1);
3323                 } else {
3324                         /* DVB-S2 rolloff to auto mode if DVBS2 */
3325                         STV090x_SETFIELD_Px(reg, MANUAL_S2ROLLOFF_FIELD, 1);
3326                 }
3327                 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
3328                         goto err;
3329
3330                 if (stv090x_delivery_search(state) < 0)
3331                         goto err;
3332
3333                 if (state->algo != STV090x_BLIND_SEARCH) {
3334                         if (stv090x_start_search(state) < 0)
3335                                 goto err;
3336                 }
3337         }
3338
3339         if (signal_state == STV090x_NOAGC1)
3340                 return signal_state;
3341
3342         if (state->algo == STV090x_BLIND_SEARCH)
3343                 lock = stv090x_blind_search(state);
3344
3345         else if (state->algo == STV090x_COLD_SEARCH)
3346                 lock = stv090x_get_coldlock(state, state->DemodTimeout);
3347
3348         else if (state->algo == STV090x_WARM_SEARCH)
3349                 lock = stv090x_get_dmdlock(state, state->DemodTimeout);
3350
3351         if ((!lock) && (state->algo == STV090x_COLD_SEARCH)) {
3352                 if (!low_sr) {
3353                         if (stv090x_chk_tmg(state))
3354                                 lock = stv090x_sw_algo(state);
3355                 }
3356         }
3357
3358         if (lock)
3359                 signal_state = stv090x_get_sig_params(state);
3360
3361         if ((lock) && (signal_state == STV090x_RANGEOK)) { /* signal within Range */
3362                 stv090x_optimize_track(state);
3363
3364                 if (state->internal->dev_ver >= 0x20) {
3365                         /* >= Cut 2.0 :release TS reset after
3366                          * demod lock and optimized Tracking
3367                          */
3368                         reg = STV090x_READ_DEMOD(state, TSCFGH);
3369                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3370                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3371                                 goto err;
3372
3373                         msleep(3);
3374
3375                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 1); /* merger reset */
3376                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3377                                 goto err;
3378
3379                         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0); /* release merger reset */
3380                         if (STV090x_WRITE_DEMOD(state, TSCFGH, reg) < 0)
3381                                 goto err;
3382                 }
3383
3384                 lock = stv090x_get_lock(state, state->FecTimeout,
3385                                 state->FecTimeout);
3386                 if (lock) {
3387                         if (state->delsys == STV090x_DVBS2) {
3388                                 stv090x_set_s2rolloff(state);
3389
3390                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3391                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 1);
3392                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3393                                         goto err;
3394                                 /* Reset DVBS2 packet delinator error counter */
3395                                 reg = STV090x_READ_DEMOD(state, PDELCTRL2);
3396                                 STV090x_SETFIELD_Px(reg, RESET_UPKO_COUNT, 0);
3397                                 if (STV090x_WRITE_DEMOD(state, PDELCTRL2, reg) < 0)
3398                                         goto err;
3399
3400                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x67) < 0) /* PER */
3401                                         goto err;
3402                         } else {
3403                                 if (STV090x_WRITE_DEMOD(state, ERRCTRL1, 0x75) < 0)
3404                                         goto err;
3405                         }
3406                         /* Reset the Total packet counter */
3407                         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0x00) < 0)
3408                                 goto err;
3409                         /* Reset the packet Error counter2 */
3410                         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3411                                 goto err;
3412                 } else {
3413                         signal_state = STV090x_NODATA;
3414                         stv090x_chk_signal(state);
3415                 }
3416         }
3417         return signal_state;
3418
3419 err_gateoff:
3420         stv090x_i2c_gate_ctrl(state, 0);
3421 err:
3422         dprintk(FE_ERROR, 1, "I/O error");
3423         return -1;
3424 }
3425
3426 static int stv090x_set_pls(struct stv090x_state *state, u32 pls_code)
3427 {
3428         dprintk(FE_DEBUG, 1, "Set Gold PLS code %d", pls_code);
3429         if (STV090x_WRITE_DEMOD(state, PLROOT0, pls_code & 0xff) < 0)
3430                 goto err;
3431         if (STV090x_WRITE_DEMOD(state, PLROOT1, (pls_code >> 8) & 0xff) < 0)
3432                 goto err;
3433         if (STV090x_WRITE_DEMOD(state, PLROOT2, 0x04 | (pls_code >> 16)) < 0)
3434                 goto err;
3435         return 0;
3436 err:
3437         dprintk(FE_ERROR, 1, "I/O error");
3438         return -1;
3439 }
3440
3441 static int stv090x_set_mis(struct stv090x_state *state, int mis)
3442 {
3443         u32 reg;
3444
3445         if (mis < 0 || mis > 255) {
3446                 dprintk(FE_DEBUG, 1, "Disable MIS filtering");
3447                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3448                 STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x00);
3449                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3450                         goto err;
3451         } else {
3452                 dprintk(FE_DEBUG, 1, "Enable MIS filtering - %d", mis);
3453                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
3454                 STV090x_SETFIELD_Px(reg, FILTER_EN_FIELD, 0x01);
3455                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
3456                         goto err;
3457                 if (STV090x_WRITE_DEMOD(state, ISIENTRY, mis) < 0)
3458                         goto err;
3459                 if (STV090x_WRITE_DEMOD(state, ISIBITENA, 0xff) < 0)
3460                         goto err;
3461         }
3462         return 0;
3463 err:
3464         dprintk(FE_ERROR, 1, "I/O error");
3465         return -1;
3466 }
3467
3468 static enum dvbfe_search stv090x_search(struct dvb_frontend *fe)
3469 {
3470         struct stv090x_state *state = fe->demodulator_priv;
3471         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
3472
3473         if (props->frequency == 0)
3474                 return DVBFE_ALGO_SEARCH_INVALID;
3475
3476         switch (props->delivery_system) {
3477         case SYS_DSS:
3478                 state->delsys = STV090x_DSS;
3479                 break;
3480         case SYS_DVBS:
3481                 state->delsys = STV090x_DVBS1;
3482                 break;
3483         case SYS_DVBS2:
3484                 state->delsys = STV090x_DVBS2;
3485                 break;
3486         default:
3487                 return DVBFE_ALGO_SEARCH_INVALID;
3488         }
3489
3490         state->frequency = props->frequency;
3491         state->srate = props->symbol_rate;
3492         state->search_mode = STV090x_SEARCH_AUTO;
3493         state->algo = STV090x_COLD_SEARCH;
3494         state->fec = STV090x_PRERR;
3495         if (state->srate > 10000000) {
3496                 dprintk(FE_DEBUG, 1, "Search range: 10 MHz");
3497                 state->search_range = 10000000;
3498         } else {
3499                 dprintk(FE_DEBUG, 1, "Search range: 5 MHz");
3500                 state->search_range = 5000000;
3501         }
3502
3503         stv090x_set_pls(state, props->scrambling_sequence_index);
3504         stv090x_set_mis(state, props->stream_id);
3505
3506         if (stv090x_algo(state) == STV090x_RANGEOK) {
3507                 dprintk(FE_DEBUG, 1, "Search success!");
3508                 return DVBFE_ALGO_SEARCH_SUCCESS;
3509         } else {
3510                 dprintk(FE_DEBUG, 1, "Search failed!");
3511                 return DVBFE_ALGO_SEARCH_FAILED;
3512         }
3513
3514         return DVBFE_ALGO_SEARCH_ERROR;
3515 }
3516
3517 static int stv090x_read_status(struct dvb_frontend *fe, enum fe_status *status)
3518 {
3519         struct stv090x_state *state = fe->demodulator_priv;
3520         u32 reg, dstatus;
3521         u8 search_state;
3522
3523         *status = 0;
3524
3525         dstatus = STV090x_READ_DEMOD(state, DSTATUS);
3526         if (STV090x_GETFIELD_Px(dstatus, CAR_LOCK_FIELD))
3527                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
3528
3529         reg = STV090x_READ_DEMOD(state, DMDSTATE);
3530         search_state = STV090x_GETFIELD_Px(reg, HEADER_MODE_FIELD);
3531
3532         switch (search_state) {
3533         case 0: /* searching */
3534         case 1: /* first PLH detected */
3535         default:
3536                 dprintk(FE_DEBUG, 1, "Status: Unlocked (Searching ..)");
3537                 break;
3538
3539         case 2: /* DVB-S2 mode */
3540                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S2");
3541                 if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3542                         reg = STV090x_READ_DEMOD(state, PDELSTATUS1);
3543                         if (STV090x_GETFIELD_Px(reg, PKTDELIN_LOCK_FIELD)) {
3544                                 *status |= FE_HAS_VITERBI;
3545                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3546                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3547                                         *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3548                         }
3549                 }
3550                 break;
3551
3552         case 3: /* DVB-S1/legacy mode */
3553                 dprintk(FE_DEBUG, 1, "Delivery system: DVB-S");
3554                 if (STV090x_GETFIELD_Px(dstatus, LOCK_DEFINITIF_FIELD)) {
3555                         reg = STV090x_READ_DEMOD(state, VSTATUSVIT);
3556                         if (STV090x_GETFIELD_Px(reg, LOCKEDVIT_FIELD)) {
3557                                 *status |= FE_HAS_VITERBI;
3558                                 reg = STV090x_READ_DEMOD(state, TSSTATUS);
3559                                 if (STV090x_GETFIELD_Px(reg, TSFIFO_LINEOK_FIELD))
3560                                         *status |= FE_HAS_SYNC | FE_HAS_LOCK;
3561                         }
3562                 }
3563                 break;
3564         }
3565
3566         return 0;
3567 }
3568
3569 static int stv090x_read_per(struct dvb_frontend *fe, u32 *per)
3570 {
3571         struct stv090x_state *state = fe->demodulator_priv;
3572
3573         s32 count_4, count_3, count_2, count_1, count_0, count;
3574         u32 reg, h, m, l;
3575         enum fe_status status;
3576
3577         stv090x_read_status(fe, &status);
3578         if (!(status & FE_HAS_LOCK)) {
3579                 *per = 1 << 23; /* Max PER */
3580         } else {
3581                 /* Counter 2 */
3582                 reg = STV090x_READ_DEMOD(state, ERRCNT22);
3583                 h = STV090x_GETFIELD_Px(reg, ERR_CNT2_FIELD);
3584
3585                 reg = STV090x_READ_DEMOD(state, ERRCNT21);
3586                 m = STV090x_GETFIELD_Px(reg, ERR_CNT21_FIELD);
3587
3588                 reg = STV090x_READ_DEMOD(state, ERRCNT20);
3589                 l = STV090x_GETFIELD_Px(reg, ERR_CNT20_FIELD);
3590
3591                 *per = ((h << 16) | (m << 8) | l);
3592
3593                 count_4 = STV090x_READ_DEMOD(state, FBERCPT4);
3594                 count_3 = STV090x_READ_DEMOD(state, FBERCPT3);
3595                 count_2 = STV090x_READ_DEMOD(state, FBERCPT2);
3596                 count_1 = STV090x_READ_DEMOD(state, FBERCPT1);
3597                 count_0 = STV090x_READ_DEMOD(state, FBERCPT0);
3598
3599                 if ((!count_4) && (!count_3)) {
3600                         count  = (count_2 & 0xff) << 16;
3601                         count |= (count_1 & 0xff) <<  8;
3602                         count |=  count_0 & 0xff;
3603                 } else {
3604                         count = 1 << 24;
3605                 }
3606                 if (count == 0)
3607                         *per = 1;
3608         }
3609         if (STV090x_WRITE_DEMOD(state, FBERCPT4, 0) < 0)
3610                 goto err;
3611         if (STV090x_WRITE_DEMOD(state, ERRCTRL2, 0xc1) < 0)
3612                 goto err;
3613
3614         return 0;
3615 err:
3616         dprintk(FE_ERROR, 1, "I/O error");
3617         return -1;
3618 }
3619
3620 static int stv090x_table_lookup(const struct stv090x_tab *tab, int max, int val)
3621 {
3622         int res = 0;
3623         int min = 0, med;
3624
3625         if ((val >= tab[min].read && val < tab[max].read) ||
3626             (val >= tab[max].read && val < tab[min].read)) {
3627                 while ((max - min) > 1) {
3628                         med = (max + min) / 2;
3629                         if ((val >= tab[min].read && val < tab[med].read) ||
3630                             (val >= tab[med].read && val < tab[min].read))
3631                                 max = med;
3632                         else
3633                                 min = med;
3634                 }
3635                 res = ((val - tab[min].read) *
3636                        (tab[max].real - tab[min].real) /
3637                        (tab[max].read - tab[min].read)) +
3638                         tab[min].real;
3639         } else {
3640                 if (tab[min].read < tab[max].read) {
3641                         if (val < tab[min].read)
3642                                 res = tab[min].real;
3643                         else if (val >= tab[max].read)
3644                                 res = tab[max].real;
3645                 } else {
3646                         if (val >= tab[min].read)
3647                                 res = tab[min].real;
3648                         else if (val < tab[max].read)
3649                                 res = tab[max].real;
3650                 }
3651         }
3652
3653         return res;
3654 }
3655
3656 static int stv090x_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
3657 {
3658         struct stv090x_state *state = fe->demodulator_priv;
3659         u32 reg;
3660         s32 agc_0, agc_1, agc;
3661         s32 str;
3662
3663         reg = STV090x_READ_DEMOD(state, AGCIQIN1);
3664         agc_1 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3665         reg = STV090x_READ_DEMOD(state, AGCIQIN0);
3666         agc_0 = STV090x_GETFIELD_Px(reg, AGCIQ_VALUE_FIELD);
3667         agc = MAKEWORD16(agc_1, agc_0);
3668
3669         str = stv090x_table_lookup(stv090x_rf_tab,
3670                 ARRAY_SIZE(stv090x_rf_tab) - 1, agc);
3671         if (agc > stv090x_rf_tab[0].read)
3672                 str = 0;
3673         else if (agc < stv090x_rf_tab[ARRAY_SIZE(stv090x_rf_tab) - 1].read)
3674                 str = -100;
3675         *strength = (str + 100) * 0xFFFF / 100;
3676
3677         return 0;
3678 }
3679
3680 static int stv090x_read_cnr(struct dvb_frontend *fe, u16 *cnr)
3681 {
3682         struct stv090x_state *state = fe->demodulator_priv;
3683         u32 reg_0, reg_1, reg, i;
3684         s32 val_0, val_1, val = 0;
3685         u8 lock_f;
3686         s32 div;
3687         u32 last;
3688
3689         switch (state->delsys) {
3690         case STV090x_DVBS2:
3691                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3692                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3693                 if (lock_f) {
3694                         msleep(5);
3695                         for (i = 0; i < 16; i++) {
3696                                 reg_1 = STV090x_READ_DEMOD(state, NNOSPLHT1);
3697                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSPLHT_NORMED_FIELD);
3698                                 reg_0 = STV090x_READ_DEMOD(state, NNOSPLHT0);
3699                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSPLHT_NORMED_FIELD);
3700                                 val  += MAKEWORD16(val_1, val_0);
3701                                 msleep(1);
3702                         }
3703                         val /= 16;
3704                         last = ARRAY_SIZE(stv090x_s2cn_tab) - 1;
3705                         div = stv090x_s2cn_tab[last].real -
3706                               stv090x_s2cn_tab[3].real;
3707                         val = stv090x_table_lookup(stv090x_s2cn_tab, last, val);
3708                         if (val < 0)
3709                                 val = 0;
3710                         *cnr = val * 0xFFFF / div;
3711                 }
3712                 break;
3713
3714         case STV090x_DVBS1:
3715         case STV090x_DSS:
3716                 reg = STV090x_READ_DEMOD(state, DSTATUS);
3717                 lock_f = STV090x_GETFIELD_Px(reg, LOCK_DEFINITIF_FIELD);
3718                 if (lock_f) {
3719                         msleep(5);
3720                         for (i = 0; i < 16; i++) {
3721                                 reg_1 = STV090x_READ_DEMOD(state, NOSDATAT1);
3722                                 val_1 = STV090x_GETFIELD_Px(reg_1, NOSDATAT_UNNORMED_FIELD);
3723                                 reg_0 = STV090x_READ_DEMOD(state, NOSDATAT0);
3724                                 val_0 = STV090x_GETFIELD_Px(reg_0, NOSDATAT_UNNORMED_FIELD);
3725                                 val  += MAKEWORD16(val_1, val_0);
3726                                 msleep(1);
3727                         }
3728                         val /= 16;
3729                         last = ARRAY_SIZE(stv090x_s1cn_tab) - 1;
3730                         div = stv090x_s1cn_tab[last].real -
3731                               stv090x_s1cn_tab[0].real;
3732                         val = stv090x_table_lookup(stv090x_s1cn_tab, last, val);
3733                         *cnr = val * 0xFFFF / div;
3734                 }
3735                 break;
3736         default:
3737                 break;
3738         }
3739
3740         return 0;
3741 }
3742
3743 static int stv090x_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
3744 {
3745         struct stv090x_state *state = fe->demodulator_priv;
3746         u32 reg;
3747
3748         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3749         switch (tone) {
3750         case SEC_TONE_ON:
3751                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3752                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3753                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3754                         goto err;
3755                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3756                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3757                         goto err;
3758                 break;
3759
3760         case SEC_TONE_OFF:
3761                 STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, 0);
3762                 STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3763                 if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3764                         goto err;
3765                 break;
3766         default:
3767                 return -EINVAL;
3768         }
3769
3770         return 0;
3771 err:
3772         dprintk(FE_ERROR, 1, "I/O error");
3773         return -1;
3774 }
3775
3776
3777 static enum dvbfe_algo stv090x_frontend_algo(struct dvb_frontend *fe)
3778 {
3779         return DVBFE_ALGO_CUSTOM;
3780 }
3781
3782 static int stv090x_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
3783 {
3784         struct stv090x_state *state = fe->demodulator_priv;
3785         u32 reg, idle = 0, fifo_full = 1;
3786         int i;
3787
3788         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3789
3790         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD,
3791                 (state->config->diseqc_envelope_mode) ? 4 : 2);
3792         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3793         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3794                 goto err;
3795         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3796         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3797                 goto err;
3798
3799         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3800         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3801                 goto err;
3802
3803         for (i = 0; i < cmd->msg_len; i++) {
3804
3805                 while (fifo_full) {
3806                         reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3807                         fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3808                 }
3809
3810                 if (STV090x_WRITE_DEMOD(state, DISTXDATA, cmd->msg[i]) < 0)
3811                         goto err;
3812         }
3813         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3814         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3815         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3816                 goto err;
3817
3818         i = 0;
3819
3820         while ((!idle) && (i < 10)) {
3821                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3822                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3823                 msleep(10);
3824                 i++;
3825         }
3826
3827         return 0;
3828 err:
3829         dprintk(FE_ERROR, 1, "I/O error");
3830         return -1;
3831 }
3832
3833 static int stv090x_send_diseqc_burst(struct dvb_frontend *fe,
3834                                      enum fe_sec_mini_cmd burst)
3835 {
3836         struct stv090x_state *state = fe->demodulator_priv;
3837         u32 reg, idle = 0, fifo_full = 1;
3838         u8 mode, value;
3839         int i;
3840
3841         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3842
3843         if (burst == SEC_MINI_A) {
3844                 mode = (state->config->diseqc_envelope_mode) ? 5 : 3;
3845                 value = 0x00;
3846         } else {
3847                 mode = (state->config->diseqc_envelope_mode) ? 4 : 2;
3848                 value = 0xFF;
3849         }
3850
3851         STV090x_SETFIELD_Px(reg, DISTX_MODE_FIELD, mode);
3852         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 1);
3853         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3854                 goto err;
3855         STV090x_SETFIELD_Px(reg, DISEQC_RESET_FIELD, 0);
3856         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3857                 goto err;
3858
3859         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 1);
3860         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3861                 goto err;
3862
3863         while (fifo_full) {
3864                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3865                 fifo_full = STV090x_GETFIELD_Px(reg, FIFO_FULL_FIELD);
3866         }
3867
3868         if (STV090x_WRITE_DEMOD(state, DISTXDATA, value) < 0)
3869                 goto err;
3870
3871         reg = STV090x_READ_DEMOD(state, DISTXCTL);
3872         STV090x_SETFIELD_Px(reg, DIS_PRECHARGE_FIELD, 0);
3873         if (STV090x_WRITE_DEMOD(state, DISTXCTL, reg) < 0)
3874                 goto err;
3875
3876         i = 0;
3877
3878         while ((!idle) && (i < 10)) {
3879                 reg = STV090x_READ_DEMOD(state, DISTXSTATUS);
3880                 idle = STV090x_GETFIELD_Px(reg, TX_IDLE_FIELD);
3881                 msleep(10);
3882                 i++;
3883         }
3884
3885         return 0;
3886 err:
3887         dprintk(FE_ERROR, 1, "I/O error");
3888         return -1;
3889 }
3890
3891 static int stv090x_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
3892 {
3893         struct stv090x_state *state = fe->demodulator_priv;
3894         u32 reg = 0, i = 0, rx_end = 0;
3895
3896         while ((rx_end != 1) && (i < 10)) {
3897                 msleep(10);
3898                 i++;
3899                 reg = STV090x_READ_DEMOD(state, DISRX_ST0);
3900                 rx_end = STV090x_GETFIELD_Px(reg, RX_END_FIELD);
3901         }
3902
3903         if (rx_end) {
3904                 reply->msg_len = STV090x_GETFIELD_Px(reg, FIFO_BYTENBR_FIELD);
3905                 for (i = 0; i < reply->msg_len; i++)
3906                         reply->msg[i] = STV090x_READ_DEMOD(state, DISRXDATA);
3907         }
3908
3909         return 0;
3910 }
3911
3912 static int stv090x_sleep(struct dvb_frontend *fe)
3913 {
3914         struct stv090x_state *state = fe->demodulator_priv;
3915         u32 reg;
3916         u8 full_standby = 0;
3917
3918         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
3919                 goto err;
3920
3921         if (state->config->tuner_sleep) {
3922                 if (state->config->tuner_sleep(fe) < 0)
3923                         goto err_gateoff;
3924         }
3925
3926         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
3927                 goto err;
3928
3929         dprintk(FE_DEBUG, 1, "Set %s(%d) to sleep",
3930                 state->device == STV0900 ? "STV0900" : "STV0903",
3931                 state->demod);
3932
3933         mutex_lock(&state->internal->demod_lock);
3934
3935         switch (state->demod) {
3936         case STV090x_DEMODULATOR_0:
3937                 /* power off ADC 1 */
3938                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3939                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 0);
3940                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
3941                         goto err_unlock;
3942                 /* power off DiSEqC 1 */
3943                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
3944                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 0);
3945                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
3946                         goto err_unlock;
3947
3948                 /* check whether path 2 is already sleeping, that is when
3949                    ADC2 is off */
3950                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3951                 if (STV090x_GETFIELD(reg, ADC2_PON_FIELD) == 0)
3952                         full_standby = 1;
3953
3954                 /* stop clocks */
3955                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3956                 /* packet delineator 1 clock */
3957                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 1);
3958                 /* ADC 1 clock */
3959                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 1);
3960                 /* FEC clock is shared between the two paths, only stop it
3961                    when full standby is possible */
3962                 if (full_standby)
3963                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
3964                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
3965                         goto err_unlock;
3966                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
3967                 /* sampling 1 clock */
3968                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 1);
3969                 /* viterbi 1 clock */
3970                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 1);
3971                 /* TS clock is shared between the two paths, only stop it
3972                    when full standby is possible */
3973                 if (full_standby)
3974                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
3975                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
3976                         goto err_unlock;
3977                 break;
3978
3979         case STV090x_DEMODULATOR_1:
3980                 /* power off ADC 2 */
3981                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
3982                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 0);
3983                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
3984                         goto err_unlock;
3985                 /* power off DiSEqC 2 */
3986                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
3987                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 0);
3988                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
3989                         goto err_unlock;
3990
3991                 /* check whether path 1 is already sleeping, that is when
3992                    ADC1 is off */
3993                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
3994                 if (STV090x_GETFIELD(reg, ADC1_PON_FIELD) == 0)
3995                         full_standby = 1;
3996
3997                 /* stop clocks */
3998                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
3999                 /* packet delineator 2 clock */
4000                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 1);
4001                 /* ADC 2 clock */
4002                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 1);
4003                 /* FEC clock is shared between the two paths, only stop it
4004                    when full standby is possible */
4005                 if (full_standby)
4006                         STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 1);
4007                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4008                         goto err_unlock;
4009                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4010                 /* sampling 2 clock */
4011                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 1);
4012                 /* viterbi 2 clock */
4013                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 1);
4014                 /* TS clock is shared between the two paths, only stop it
4015                    when full standby is possible */
4016                 if (full_standby)
4017                         STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 1);
4018                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4019                         goto err_unlock;
4020                 break;
4021
4022         default:
4023                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
4024                 break;
4025         }
4026
4027         if (full_standby) {
4028                 /* general power off */
4029                 reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4030                 STV090x_SETFIELD(reg, STANDBY_FIELD, 0x01);
4031                 if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4032                         goto err_unlock;
4033         }
4034
4035         mutex_unlock(&state->internal->demod_lock);
4036         return 0;
4037
4038 err_gateoff:
4039         stv090x_i2c_gate_ctrl(state, 0);
4040         goto err;
4041 err_unlock:
4042         mutex_unlock(&state->internal->demod_lock);
4043 err:
4044         dprintk(FE_ERROR, 1, "I/O error");
4045         return -1;
4046 }
4047
4048 static int stv090x_wakeup(struct dvb_frontend *fe)
4049 {
4050         struct stv090x_state *state = fe->demodulator_priv;
4051         u32 reg;
4052
4053         dprintk(FE_DEBUG, 1, "Wake %s(%d) from standby",
4054                 state->device == STV0900 ? "STV0900" : "STV0903",
4055                 state->demod);
4056
4057         mutex_lock(&state->internal->demod_lock);
4058
4059         /* general power on */
4060         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4061         STV090x_SETFIELD(reg, STANDBY_FIELD, 0x00);
4062         if (stv090x_write_reg(state, STV090x_SYNTCTRL, reg) < 0)
4063                 goto err;
4064
4065         switch (state->demod) {
4066         case STV090x_DEMODULATOR_0:
4067                 /* power on ADC 1 */
4068                 reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4069                 STV090x_SETFIELD(reg, ADC1_PON_FIELD, 1);
4070                 if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4071                         goto err;
4072                 /* power on DiSEqC 1 */
4073                 reg = stv090x_read_reg(state, STV090x_TSTTNR2);
4074                 STV090x_SETFIELD(reg, DISEQC1_PON_FIELD, 1);
4075                 if (stv090x_write_reg(state, STV090x_TSTTNR2, reg) < 0)
4076                         goto err;
4077
4078                 /* activate clocks */
4079                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4080                 /* packet delineator 1 clock */
4081                 STV090x_SETFIELD(reg, STOP_CLKPKDT1_FIELD, 0);
4082                 /* ADC 1 clock */
4083                 STV090x_SETFIELD(reg, STOP_CLKADCI1_FIELD, 0);
4084                 /* FEC clock */
4085                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4086                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4087                         goto err;
4088                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4089                 /* sampling 1 clock */
4090                 STV090x_SETFIELD(reg, STOP_CLKSAMP1_FIELD, 0);
4091                 /* viterbi 1 clock */
4092                 STV090x_SETFIELD(reg, STOP_CLKVIT1_FIELD, 0);
4093                 /* TS clock */
4094                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4095                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4096                         goto err;
4097                 break;
4098
4099         case STV090x_DEMODULATOR_1:
4100                 /* power on ADC 2 */
4101                 reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4102                 STV090x_SETFIELD(reg, ADC2_PON_FIELD, 1);
4103                 if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4104                         goto err;
4105                 /* power on DiSEqC 2 */
4106                 reg = stv090x_read_reg(state, STV090x_TSTTNR4);
4107                 STV090x_SETFIELD(reg, DISEQC2_PON_FIELD, 1);
4108                 if (stv090x_write_reg(state, STV090x_TSTTNR4, reg) < 0)
4109                         goto err;
4110
4111                 /* activate clocks */
4112                 reg = stv090x_read_reg(state, STV090x_STOPCLK1);
4113                 /* packet delineator 2 clock */
4114                 STV090x_SETFIELD(reg, STOP_CLKPKDT2_FIELD, 0);
4115                 /* ADC 2 clock */
4116                 STV090x_SETFIELD(reg, STOP_CLKADCI2_FIELD, 0);
4117                 /* FEC clock */
4118                 STV090x_SETFIELD(reg, STOP_CLKFEC_FIELD, 0);
4119                 if (stv090x_write_reg(state, STV090x_STOPCLK1, reg) < 0)
4120                         goto err;
4121                 reg = stv090x_read_reg(state, STV090x_STOPCLK2);
4122                 /* sampling 2 clock */
4123                 STV090x_SETFIELD(reg, STOP_CLKSAMP2_FIELD, 0);
4124                 /* viterbi 2 clock */
4125                 STV090x_SETFIELD(reg, STOP_CLKVIT2_FIELD, 0);
4126                 /* TS clock */
4127                 STV090x_SETFIELD(reg, STOP_CLKTS_FIELD, 0);
4128                 if (stv090x_write_reg(state, STV090x_STOPCLK2, reg) < 0)
4129                         goto err;
4130                 break;
4131
4132         default:
4133                 dprintk(FE_ERROR, 1, "Wrong demodulator!");
4134                 break;
4135         }
4136
4137         mutex_unlock(&state->internal->demod_lock);
4138         return 0;
4139 err:
4140         mutex_unlock(&state->internal->demod_lock);
4141         dprintk(FE_ERROR, 1, "I/O error");
4142         return -1;
4143 }
4144
4145 static void stv090x_release(struct dvb_frontend *fe)
4146 {
4147         struct stv090x_state *state = fe->demodulator_priv;
4148
4149         state->internal->num_used--;
4150         if (state->internal->num_used <= 0) {
4151
4152                 dprintk(FE_ERROR, 1, "Actually removing");
4153
4154                 remove_dev(state->internal);
4155                 kfree(state->internal);
4156         }
4157
4158         kfree(state);
4159 }
4160
4161 static int stv090x_ldpc_mode(struct stv090x_state *state, enum stv090x_mode ldpc_mode)
4162 {
4163         u32 reg = 0;
4164
4165         reg = stv090x_read_reg(state, STV090x_GENCFG);
4166
4167         switch (ldpc_mode) {
4168         case STV090x_DUAL:
4169         default:
4170                 if ((state->demod_mode != STV090x_DUAL) || (STV090x_GETFIELD(reg, DDEMOD_FIELD) != 1)) {
4171                         /* set LDPC to dual mode */
4172                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x1d) < 0)
4173                                 goto err;
4174
4175                         state->demod_mode = STV090x_DUAL;
4176
4177                         reg = stv090x_read_reg(state, STV090x_TSTRES0);
4178                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4179                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4180                                 goto err;
4181                         STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4182                         if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4183                                 goto err;
4184
4185                         if (STV090x_WRITE_DEMOD(state, MODCODLST0, 0xff) < 0)
4186                                 goto err;
4187                         if (STV090x_WRITE_DEMOD(state, MODCODLST1, 0xff) < 0)
4188                                 goto err;
4189                         if (STV090x_WRITE_DEMOD(state, MODCODLST2, 0xff) < 0)
4190                                 goto err;
4191                         if (STV090x_WRITE_DEMOD(state, MODCODLST3, 0xff) < 0)
4192                                 goto err;
4193                         if (STV090x_WRITE_DEMOD(state, MODCODLST4, 0xff) < 0)
4194                                 goto err;
4195                         if (STV090x_WRITE_DEMOD(state, MODCODLST5, 0xff) < 0)
4196                                 goto err;
4197                         if (STV090x_WRITE_DEMOD(state, MODCODLST6, 0xff) < 0)
4198                                 goto err;
4199
4200                         if (STV090x_WRITE_DEMOD(state, MODCODLST7, 0xcc) < 0)
4201                                 goto err;
4202                         if (STV090x_WRITE_DEMOD(state, MODCODLST8, 0xcc) < 0)
4203                                 goto err;
4204                         if (STV090x_WRITE_DEMOD(state, MODCODLST9, 0xcc) < 0)
4205                                 goto err;
4206                         if (STV090x_WRITE_DEMOD(state, MODCODLSTA, 0xcc) < 0)
4207                                 goto err;
4208                         if (STV090x_WRITE_DEMOD(state, MODCODLSTB, 0xcc) < 0)
4209                                 goto err;
4210                         if (STV090x_WRITE_DEMOD(state, MODCODLSTC, 0xcc) < 0)
4211                                 goto err;
4212                         if (STV090x_WRITE_DEMOD(state, MODCODLSTD, 0xcc) < 0)
4213                                 goto err;
4214
4215                         if (STV090x_WRITE_DEMOD(state, MODCODLSTE, 0xff) < 0)
4216                                 goto err;
4217                         if (STV090x_WRITE_DEMOD(state, MODCODLSTF, 0xcf) < 0)
4218                                 goto err;
4219                 }
4220                 break;
4221
4222         case STV090x_SINGLE:
4223                 if (stv090x_stop_modcod(state) < 0)
4224                         goto err;
4225                 if (stv090x_activate_modcod_single(state) < 0)
4226                         goto err;
4227
4228                 if (state->demod == STV090x_DEMODULATOR_1) {
4229                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x06) < 0) /* path 2 */
4230                                 goto err;
4231                 } else {
4232                         if (stv090x_write_reg(state, STV090x_GENCFG, 0x04) < 0) /* path 1 */
4233                                 goto err;
4234                 }
4235
4236                 reg = stv090x_read_reg(state, STV090x_TSTRES0);
4237                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x1);
4238                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4239                         goto err;
4240                 STV090x_SETFIELD(reg, FRESFEC_FIELD, 0x0);
4241                 if (stv090x_write_reg(state, STV090x_TSTRES0, reg) < 0)
4242                         goto err;
4243
4244                 reg = STV090x_READ_DEMOD(state, PDELCTRL1);
4245                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x01);
4246                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4247                         goto err;
4248                 STV090x_SETFIELD_Px(reg, ALGOSWRST_FIELD, 0x00);
4249                 if (STV090x_WRITE_DEMOD(state, PDELCTRL1, reg) < 0)
4250                         goto err;
4251                 break;
4252         }
4253
4254         return 0;
4255 err:
4256         dprintk(FE_ERROR, 1, "I/O error");
4257         return -1;
4258 }
4259
4260 /* return (Hz), clk in Hz*/
4261 static u32 stv090x_get_mclk(struct stv090x_state *state)
4262 {
4263         const struct stv090x_config *config = state->config;
4264         u32 div, reg;
4265         u8 ratio;
4266
4267         div = stv090x_read_reg(state, STV090x_NCOARSE);
4268         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4269         ratio = STV090x_GETFIELD(reg, SELX1RATIO_FIELD) ? 4 : 6;
4270
4271         return (div + 1) * config->xtal / ratio; /* kHz */
4272 }
4273
4274 static int stv090x_set_mclk(struct stv090x_state *state, u32 mclk, u32 clk)
4275 {
4276         const struct stv090x_config *config = state->config;
4277         u32 reg, div, clk_sel;
4278
4279         reg = stv090x_read_reg(state, STV090x_SYNTCTRL);
4280         clk_sel = ((STV090x_GETFIELD(reg, SELX1RATIO_FIELD) == 1) ? 4 : 6);
4281
4282         div = ((clk_sel * mclk) / config->xtal) - 1;
4283
4284         reg = stv090x_read_reg(state, STV090x_NCOARSE);
4285         STV090x_SETFIELD(reg, M_DIV_FIELD, div);
4286         if (stv090x_write_reg(state, STV090x_NCOARSE, reg) < 0)
4287                 goto err;
4288
4289         state->internal->mclk = stv090x_get_mclk(state);
4290
4291         /*Set the DiseqC frequency to 22KHz */
4292         div = state->internal->mclk / 704000;
4293         if (STV090x_WRITE_DEMOD(state, F22TX, div) < 0)
4294                 goto err;
4295         if (STV090x_WRITE_DEMOD(state, F22RX, div) < 0)
4296                 goto err;
4297
4298         return 0;
4299 err:
4300         dprintk(FE_ERROR, 1, "I/O error");
4301         return -1;
4302 }
4303
4304 static int stv0900_set_tspath(struct stv090x_state *state)
4305 {
4306         u32 reg;
4307
4308         if (state->internal->dev_ver >= 0x20) {
4309                 switch (state->config->ts1_mode) {
4310                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4311                 case STV090x_TSMODE_DVBCI:
4312                         switch (state->config->ts2_mode) {
4313                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4314                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4315                         default:
4316                                 stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4317                                 break;
4318
4319                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4320                         case STV090x_TSMODE_DVBCI:
4321                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x06) < 0) /* Mux'd stream mode */
4322                                         goto err;
4323                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4324                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4325                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4326                                         goto err;
4327                                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4328                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4329                                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4330                                         goto err;
4331                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4332                                         goto err;
4333                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4334                                         goto err;
4335                                 break;
4336                         }
4337                         break;
4338
4339                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4340                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4341                 default:
4342                         switch (state->config->ts2_mode) {
4343                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4344                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4345                         default:
4346                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4347                                         goto err;
4348                                 break;
4349
4350                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4351                         case STV090x_TSMODE_DVBCI:
4352                                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0a) < 0)
4353                                         goto err;
4354                                 break;
4355                         }
4356                         break;
4357                 }
4358         } else {
4359                 switch (state->config->ts1_mode) {
4360                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4361                 case STV090x_TSMODE_DVBCI:
4362                         switch (state->config->ts2_mode) {
4363                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4364                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4365                         default:
4366                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4367                                 break;
4368
4369                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4370                         case STV090x_TSMODE_DVBCI:
4371                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x16);
4372                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4373                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4374                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4375                                         goto err;
4376                                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4377                                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 0);
4378                                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4379                                         goto err;
4380                                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, 0x14) < 0)
4381                                         goto err;
4382                                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, 0x28) < 0)
4383                                         goto err;
4384                                 break;
4385                         }
4386                         break;
4387
4388                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4389                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4390                 default:
4391                         switch (state->config->ts2_mode) {
4392                         case STV090x_TSMODE_SERIAL_PUNCTURED:
4393                         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4394                         default:
4395                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4396                                 break;
4397
4398                         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4399                         case STV090x_TSMODE_DVBCI:
4400                                 stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x12);
4401                                 break;
4402                         }
4403                         break;
4404                 }
4405         }
4406
4407         switch (state->config->ts1_mode) {
4408         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4409                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4410                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4411                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4412                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4413                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4414                         goto err;
4415                 break;
4416
4417         case STV090x_TSMODE_DVBCI:
4418                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4419                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4420                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4421                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4422                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4423                         goto err;
4424                 break;
4425
4426         case STV090x_TSMODE_SERIAL_PUNCTURED:
4427                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4428                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4429                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4430                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4431                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4432                         goto err;
4433                 break;
4434
4435         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4436                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4437                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts1_tei);
4438                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4439                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4440                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4441                         goto err;
4442                 break;
4443
4444         default:
4445                 break;
4446         }
4447
4448         switch (state->config->ts2_mode) {
4449         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4450                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4451                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4452                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4453                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4454                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4455                         goto err;
4456                 break;
4457
4458         case STV090x_TSMODE_DVBCI:
4459                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4460                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4461                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4462                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4463                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4464                         goto err;
4465                 break;
4466
4467         case STV090x_TSMODE_SERIAL_PUNCTURED:
4468                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4469                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4470                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4471                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4472                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4473                         goto err;
4474                 break;
4475
4476         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4477                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4478                 STV090x_SETFIELD_Px(reg, TSFIFO_TEIUPDATE_FIELD, state->config->ts2_tei);
4479                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4480                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4481                 if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4482                         goto err;
4483                 break;
4484
4485         default:
4486                 break;
4487         }
4488
4489         if (state->config->ts1_clk > 0) {
4490                 u32 speed;
4491
4492                 switch (state->config->ts1_mode) {
4493                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4494                 case STV090x_TSMODE_DVBCI:
4495                 default:
4496                         speed = state->internal->mclk /
4497                                 (state->config->ts1_clk / 4);
4498                         if (speed < 0x08)
4499                                 speed = 0x08;
4500                         if (speed > 0xFF)
4501                                 speed = 0xFF;
4502                         break;
4503                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4504                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4505                         speed = state->internal->mclk /
4506                                 (state->config->ts1_clk / 32);
4507                         if (speed < 0x20)
4508                                 speed = 0x20;
4509                         if (speed > 0xFF)
4510                                 speed = 0xFF;
4511                         break;
4512                 }
4513                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4514                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4515                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4516                         goto err;
4517                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4518                         goto err;
4519         }
4520
4521         if (state->config->ts2_clk > 0) {
4522                 u32 speed;
4523
4524                 switch (state->config->ts2_mode) {
4525                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4526                 case STV090x_TSMODE_DVBCI:
4527                 default:
4528                         speed = state->internal->mclk /
4529                                 (state->config->ts2_clk / 4);
4530                         if (speed < 0x08)
4531                                 speed = 0x08;
4532                         if (speed > 0xFF)
4533                                 speed = 0xFF;
4534                         break;
4535                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4536                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4537                         speed = state->internal->mclk /
4538                                 (state->config->ts2_clk / 32);
4539                         if (speed < 0x20)
4540                                 speed = 0x20;
4541                         if (speed > 0xFF)
4542                                 speed = 0xFF;
4543                         break;
4544                 }
4545                 reg = stv090x_read_reg(state, STV090x_P2_TSCFGM);
4546                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4547                 if (stv090x_write_reg(state, STV090x_P2_TSCFGM, reg) < 0)
4548                         goto err;
4549                 if (stv090x_write_reg(state, STV090x_P2_TSSPEED, speed) < 0)
4550                         goto err;
4551         }
4552
4553         reg = stv090x_read_reg(state, STV090x_P2_TSCFGH);
4554         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4555         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4556                 goto err;
4557         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4558         if (stv090x_write_reg(state, STV090x_P2_TSCFGH, reg) < 0)
4559                 goto err;
4560
4561         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4562         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4563         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4564                 goto err;
4565         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4566         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4567                 goto err;
4568
4569         return 0;
4570 err:
4571         dprintk(FE_ERROR, 1, "I/O error");
4572         return -1;
4573 }
4574
4575 static int stv0903_set_tspath(struct stv090x_state *state)
4576 {
4577         u32 reg;
4578
4579         if (state->internal->dev_ver >= 0x20) {
4580                 switch (state->config->ts1_mode) {
4581                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4582                 case STV090x_TSMODE_DVBCI:
4583                         stv090x_write_reg(state, STV090x_TSGENERAL, 0x00);
4584                         break;
4585
4586                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4587                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4588                 default:
4589                         stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c);
4590                         break;
4591                 }
4592         } else {
4593                 switch (state->config->ts1_mode) {
4594                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4595                 case STV090x_TSMODE_DVBCI:
4596                         stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x10);
4597                         break;
4598
4599                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4600                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4601                 default:
4602                         stv090x_write_reg(state, STV090x_TSGENERAL1X, 0x14);
4603                         break;
4604                 }
4605         }
4606
4607         switch (state->config->ts1_mode) {
4608         case STV090x_TSMODE_PARALLEL_PUNCTURED:
4609                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4610                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4611                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4612                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4613                         goto err;
4614                 break;
4615
4616         case STV090x_TSMODE_DVBCI:
4617                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4618                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x00);
4619                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4620                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4621                         goto err;
4622                 break;
4623
4624         case STV090x_TSMODE_SERIAL_PUNCTURED:
4625                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4626                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4627                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x00);
4628                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4629                         goto err;
4630                 break;
4631
4632         case STV090x_TSMODE_SERIAL_CONTINUOUS:
4633                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4634                 STV090x_SETFIELD_Px(reg, TSFIFO_SERIAL_FIELD, 0x01);
4635                 STV090x_SETFIELD_Px(reg, TSFIFO_DVBCI_FIELD, 0x01);
4636                 if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4637                         goto err;
4638                 break;
4639
4640         default:
4641                 break;
4642         }
4643
4644         if (state->config->ts1_clk > 0) {
4645                 u32 speed;
4646
4647                 switch (state->config->ts1_mode) {
4648                 case STV090x_TSMODE_PARALLEL_PUNCTURED:
4649                 case STV090x_TSMODE_DVBCI:
4650                 default:
4651                         speed = state->internal->mclk /
4652                                 (state->config->ts1_clk / 4);
4653                         if (speed < 0x08)
4654                                 speed = 0x08;
4655                         if (speed > 0xFF)
4656                                 speed = 0xFF;
4657                         break;
4658                 case STV090x_TSMODE_SERIAL_PUNCTURED:
4659                 case STV090x_TSMODE_SERIAL_CONTINUOUS:
4660                         speed = state->internal->mclk /
4661                                 (state->config->ts1_clk / 32);
4662                         if (speed < 0x20)
4663                                 speed = 0x20;
4664                         if (speed > 0xFF)
4665                                 speed = 0xFF;
4666                         break;
4667                 }
4668                 reg = stv090x_read_reg(state, STV090x_P1_TSCFGM);
4669                 STV090x_SETFIELD_Px(reg, TSFIFO_MANSPEED_FIELD, 3);
4670                 if (stv090x_write_reg(state, STV090x_P1_TSCFGM, reg) < 0)
4671                         goto err;
4672                 if (stv090x_write_reg(state, STV090x_P1_TSSPEED, speed) < 0)
4673                         goto err;
4674         }
4675
4676         reg = stv090x_read_reg(state, STV090x_P1_TSCFGH);
4677         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x01);
4678         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4679                 goto err;
4680         STV090x_SETFIELD_Px(reg, RST_HWARE_FIELD, 0x00);
4681         if (stv090x_write_reg(state, STV090x_P1_TSCFGH, reg) < 0)
4682                 goto err;
4683
4684         return 0;
4685 err:
4686         dprintk(FE_ERROR, 1, "I/O error");
4687         return -1;
4688 }
4689
4690 static int stv090x_init(struct dvb_frontend *fe)
4691 {
4692         struct stv090x_state *state = fe->demodulator_priv;
4693         const struct stv090x_config *config = state->config;
4694         u32 reg;
4695
4696         if (state->internal->mclk == 0) {
4697                 /* call tuner init to configure the tuner's clock output
4698                    divider directly before setting up the master clock of
4699                    the stv090x. */
4700                 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4701                         goto err;
4702
4703                 if (config->tuner_init) {
4704                         if (config->tuner_init(fe) < 0)
4705                                 goto err_gateoff;
4706                 }
4707
4708                 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4709                         goto err;
4710
4711                 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
4712                 msleep(5);
4713                 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
4714                                       0x20 | config->clk_mode) < 0)
4715                         goto err;
4716                 stv090x_get_mclk(state);
4717         }
4718
4719         if (stv090x_wakeup(fe) < 0) {
4720                 dprintk(FE_ERROR, 1, "Error waking device");
4721                 goto err;
4722         }
4723
4724         if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
4725                 goto err;
4726
4727         reg = STV090x_READ_DEMOD(state, TNRCFG2);
4728         STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
4729         if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
4730                 goto err;
4731         reg = STV090x_READ_DEMOD(state, DEMOD);
4732         STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
4733         if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
4734                 goto err;
4735
4736         if (stv090x_i2c_gate_ctrl(state, 1) < 0)
4737                 goto err;
4738
4739         if (config->tuner_set_mode) {
4740                 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
4741                         goto err_gateoff;
4742         }
4743
4744         if (config->tuner_init) {
4745                 if (config->tuner_init(fe) < 0)
4746                         goto err_gateoff;
4747         }
4748
4749         if (stv090x_i2c_gate_ctrl(state, 0) < 0)
4750                 goto err;
4751
4752         if (state->device == STV0900) {
4753                 if (stv0900_set_tspath(state) < 0)
4754                         goto err;
4755         } else {
4756                 if (stv0903_set_tspath(state) < 0)
4757                         goto err;
4758         }
4759
4760         return 0;
4761
4762 err_gateoff:
4763         stv090x_i2c_gate_ctrl(state, 0);
4764 err:
4765         dprintk(FE_ERROR, 1, "I/O error");
4766         return -1;
4767 }
4768
4769 static int stv090x_setup(struct dvb_frontend *fe)
4770 {
4771         struct stv090x_state *state = fe->demodulator_priv;
4772         const struct stv090x_config *config = state->config;
4773         const struct stv090x_reg *stv090x_initval = NULL;
4774         const struct stv090x_reg *stv090x_cut20_val = NULL;
4775         unsigned long t1_size = 0, t2_size = 0;
4776         u32 reg = 0;
4777
4778         int i;
4779
4780         if (state->device == STV0900) {
4781                 dprintk(FE_DEBUG, 1, "Initializing STV0900");
4782                 stv090x_initval = stv0900_initval;
4783                 t1_size = ARRAY_SIZE(stv0900_initval);
4784                 stv090x_cut20_val = stv0900_cut20_val;
4785                 t2_size = ARRAY_SIZE(stv0900_cut20_val);
4786         } else if (state->device == STV0903) {
4787                 dprintk(FE_DEBUG, 1, "Initializing STV0903");
4788                 stv090x_initval = stv0903_initval;
4789                 t1_size = ARRAY_SIZE(stv0903_initval);
4790                 stv090x_cut20_val = stv0903_cut20_val;
4791                 t2_size = ARRAY_SIZE(stv0903_cut20_val);
4792         }
4793
4794         /* STV090x init */
4795
4796         /* Stop Demod */
4797         if (stv090x_write_reg(state, STV090x_P1_DMDISTATE, 0x5c) < 0)
4798                 goto err;
4799         if (state->device == STV0900)
4800                 if (stv090x_write_reg(state, STV090x_P2_DMDISTATE, 0x5c) < 0)
4801                         goto err;
4802
4803         msleep(5);
4804
4805         /* Set No Tuner Mode */
4806         if (stv090x_write_reg(state, STV090x_P1_TNRCFG, 0x6c) < 0)
4807                 goto err;
4808         if (state->device == STV0900)
4809                 if (stv090x_write_reg(state, STV090x_P2_TNRCFG, 0x6c) < 0)
4810                         goto err;
4811
4812         /* I2C repeater OFF */
4813         STV090x_SETFIELD_Px(reg, ENARPT_LEVEL_FIELD, config->repeater_level);
4814         if (stv090x_write_reg(state, STV090x_P1_I2CRPT, reg) < 0)
4815                 goto err;
4816         if (state->device == STV0900)
4817                 if (stv090x_write_reg(state, STV090x_P2_I2CRPT, reg) < 0)
4818                         goto err;
4819
4820         if (stv090x_write_reg(state, STV090x_NCOARSE, 0x13) < 0) /* set PLL divider */
4821                 goto err;
4822         msleep(5);
4823         if (stv090x_write_reg(state, STV090x_I2CCFG, 0x08) < 0) /* 1/41 oversampling */
4824                 goto err;
4825         if (stv090x_write_reg(state, STV090x_SYNTCTRL, 0x20 | config->clk_mode) < 0) /* enable PLL */
4826                 goto err;
4827         msleep(5);
4828
4829         /* write initval */
4830         dprintk(FE_DEBUG, 1, "Setting up initial values");
4831         for (i = 0; i < t1_size; i++) {
4832                 if (stv090x_write_reg(state, stv090x_initval[i].addr, stv090x_initval[i].data) < 0)
4833                         goto err;
4834         }
4835
4836         state->internal->dev_ver = stv090x_read_reg(state, STV090x_MID);
4837         if (state->internal->dev_ver >= 0x20) {
4838                 if (stv090x_write_reg(state, STV090x_TSGENERAL, 0x0c) < 0)
4839                         goto err;
4840
4841                 /* write cut20_val*/
4842                 dprintk(FE_DEBUG, 1, "Setting up Cut 2.0 initial values");
4843                 for (i = 0; i < t2_size; i++) {
4844                         if (stv090x_write_reg(state, stv090x_cut20_val[i].addr, stv090x_cut20_val[i].data) < 0)
4845                                 goto err;
4846                 }
4847
4848         } else if (state->internal->dev_ver < 0x20) {
4849                 dprintk(FE_ERROR, 1, "ERROR: Unsupported Cut: 0x%02x!",
4850                         state->internal->dev_ver);
4851
4852                 goto err;
4853         } else if (state->internal->dev_ver > 0x30) {
4854                 /* we shouldn't bail out from here */
4855                 dprintk(FE_ERROR, 1, "INFO: Cut: 0x%02x probably incomplete support!",
4856                         state->internal->dev_ver);
4857         }
4858
4859         /* ADC1 range */
4860         reg = stv090x_read_reg(state, STV090x_TSTTNR1);
4861         STV090x_SETFIELD(reg, ADC1_INMODE_FIELD,
4862                 (config->adc1_range == STV090x_ADC_1Vpp) ? 0 : 1);
4863         if (stv090x_write_reg(state, STV090x_TSTTNR1, reg) < 0)
4864                 goto err;
4865
4866         /* ADC2 range */
4867         reg = stv090x_read_reg(state, STV090x_TSTTNR3);
4868         STV090x_SETFIELD(reg, ADC2_INMODE_FIELD,
4869                 (config->adc2_range == STV090x_ADC_1Vpp) ? 0 : 1);
4870         if (stv090x_write_reg(state, STV090x_TSTTNR3, reg) < 0)
4871                 goto err;
4872
4873         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x80) < 0)
4874                 goto err;
4875         if (stv090x_write_reg(state, STV090x_TSTRES0, 0x00) < 0)
4876                 goto err;
4877
4878         return 0;
4879 err:
4880         dprintk(FE_ERROR, 1, "I/O error");
4881         return -1;
4882 }
4883
4884 static int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir,
4885                             u8 value, u8 xor_value)
4886 {
4887         struct stv090x_state *state = fe->demodulator_priv;
4888         u8 reg = 0;
4889
4890         STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);
4891         STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);
4892         STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);
4893
4894         return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);
4895 }
4896
4897 static int stv090x_setup_compound(struct stv090x_state *state)
4898 {
4899         struct stv090x_dev *temp_int;
4900
4901         temp_int = find_dev(state->i2c,
4902                             state->config->address);
4903
4904         if (temp_int && state->demod_mode == STV090x_DUAL) {
4905                 state->internal = temp_int->internal;
4906                 state->internal->num_used++;
4907                 dprintk(FE_INFO, 1, "Found Internal Structure!");
4908         } else {
4909                 state->internal = kmalloc(sizeof(*state->internal), GFP_KERNEL);
4910                 if (!state->internal)
4911                         goto error;
4912                 temp_int = append_internal(state->internal);
4913                 if (!temp_int) {
4914                         kfree(state->internal);
4915                         goto error;
4916                 }
4917                 state->internal->num_used = 1;
4918                 state->internal->mclk = 0;
4919                 state->internal->dev_ver = 0;
4920                 state->internal->i2c_adap = state->i2c;
4921                 state->internal->i2c_addr = state->config->address;
4922                 dprintk(FE_INFO, 1, "Create New Internal Structure!");
4923
4924                 mutex_init(&state->internal->demod_lock);
4925                 mutex_init(&state->internal->tuner_lock);
4926
4927                 if (stv090x_setup(&state->frontend) < 0) {
4928                         dprintk(FE_ERROR, 1, "Error setting up device");
4929                         goto err_remove;
4930                 }
4931         }
4932
4933         if (state->internal->dev_ver >= 0x30)
4934                 state->frontend.ops.info.caps |= FE_CAN_MULTISTREAM;
4935
4936         /* workaround for stuck DiSEqC output */
4937         if (state->config->diseqc_envelope_mode)
4938                 stv090x_send_diseqc_burst(&state->frontend, SEC_MINI_A);
4939
4940         state->config->set_gpio = stv090x_set_gpio;
4941
4942         dprintk(FE_ERROR, 1, "Probing %s demodulator(%d) Cut=0x%02x",
4943                 state->device == STV0900 ? "STV0900" : "STV0903",
4944                 state->config->demod,
4945                 state->internal->dev_ver);
4946
4947         return 0;
4948
4949 error:
4950         return -ENOMEM;
4951 err_remove:
4952         remove_dev(state->internal);
4953         kfree(state->internal);
4954         return -ENODEV;
4955 }
4956
4957 static const struct dvb_frontend_ops stv090x_ops = {
4958         .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
4959         .info = {
4960                 .name                   = "STV090x Multistandard",
4961                 .frequency_min_hz       =  950 * MHz,
4962                 .frequency_max_hz       = 2150 * MHz,
4963                 .symbol_rate_min        = 1000000,
4964                 .symbol_rate_max        = 45000000,
4965                 .caps                   = FE_CAN_INVERSION_AUTO |
4966                                           FE_CAN_FEC_AUTO       |
4967                                           FE_CAN_QPSK           |
4968                                           FE_CAN_2G_MODULATION
4969         },
4970
4971         .release                        = stv090x_release,
4972         .init                           = stv090x_init,
4973
4974         .sleep                          = stv090x_sleep,
4975         .get_frontend_algo              = stv090x_frontend_algo,
4976
4977         .diseqc_send_master_cmd         = stv090x_send_diseqc_msg,
4978         .diseqc_send_burst              = stv090x_send_diseqc_burst,
4979         .diseqc_recv_slave_reply        = stv090x_recv_slave_reply,
4980         .set_tone                       = stv090x_set_tone,
4981
4982         .search                         = stv090x_search,
4983         .read_status                    = stv090x_read_status,
4984         .read_ber                       = stv090x_read_per,
4985         .read_signal_strength           = stv090x_read_signal_strength,
4986         .read_snr                       = stv090x_read_cnr,
4987 };
4988
4989 static struct dvb_frontend *stv090x_get_dvb_frontend(struct i2c_client *client)
4990 {
4991         struct stv090x_state *state = i2c_get_clientdata(client);
4992
4993         dev_dbg(&client->dev, "\n");
4994
4995         return &state->frontend;
4996 }
4997
4998 static int stv090x_probe(struct i2c_client *client)
4999 {
5000         int ret = 0;
5001         struct stv090x_config *config = client->dev.platform_data;
5002
5003         struct stv090x_state *state = NULL;
5004
5005         state = kzalloc(sizeof(*state), GFP_KERNEL);
5006         if (!state) {
5007                 ret = -ENOMEM;
5008                 goto error;
5009         }
5010
5011         state->verbose                          = &verbose;
5012         state->config                           = config;
5013         state->i2c                              = client->adapter;
5014         state->frontend.ops                     = stv090x_ops;
5015         state->frontend.demodulator_priv        = state;
5016         state->demod                            = config->demod;
5017                                                 /* Single or Dual mode */
5018         state->demod_mode                       = config->demod_mode;
5019         state->device                           = config->device;
5020                                                 /* default */
5021         state->rolloff                          = STV090x_RO_35;
5022
5023         ret = stv090x_setup_compound(state);
5024         if (ret)
5025                 goto error;
5026
5027         i2c_set_clientdata(client, state);
5028
5029         /* setup callbacks */
5030         config->get_dvb_frontend = stv090x_get_dvb_frontend;
5031
5032         return 0;
5033
5034 error:
5035         kfree(state);
5036         return ret;
5037 }
5038
5039 static void stv090x_remove(struct i2c_client *client)
5040 {
5041         struct stv090x_state *state = i2c_get_clientdata(client);
5042
5043         stv090x_release(&state->frontend);
5044 }
5045
5046 struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
5047                                     struct i2c_adapter *i2c,
5048                                     enum stv090x_demodulator demod)
5049 {
5050         int ret = 0;
5051         struct stv090x_state *state = NULL;
5052
5053         state = kzalloc(sizeof(*state), GFP_KERNEL);
5054         if (!state)
5055                 goto error;
5056
5057         state->verbose                          = &verbose;
5058         state->config                           = config;
5059         state->i2c                              = i2c;
5060         state->frontend.ops                     = stv090x_ops;
5061         state->frontend.demodulator_priv        = state;
5062         state->demod                            = demod;
5063                                                 /* Single or Dual mode */
5064         state->demod_mode                       = config->demod_mode;
5065         state->device                           = config->device;
5066                                                 /* default */
5067         state->rolloff                          = STV090x_RO_35;
5068
5069         ret = stv090x_setup_compound(state);
5070         if (ret)
5071                 goto error;
5072
5073         return &state->frontend;
5074
5075 error:
5076         kfree(state);
5077         return NULL;
5078 }
5079 EXPORT_SYMBOL_GPL(stv090x_attach);
5080
5081 static const struct i2c_device_id stv090x_id_table[] = {
5082         {"stv090x", 0},
5083         {}
5084 };
5085 MODULE_DEVICE_TABLE(i2c, stv090x_id_table);
5086
5087 static struct i2c_driver stv090x_driver = {
5088         .driver = {
5089                 .name   = "stv090x",
5090                 .suppress_bind_attrs = true,
5091         },
5092         .probe          = stv090x_probe,
5093         .remove         = stv090x_remove,
5094         .id_table       = stv090x_id_table,
5095 };
5096
5097 module_i2c_driver(stv090x_driver);
5098
5099 MODULE_PARM_DESC(verbose, "Set Verbosity level");
5100 MODULE_AUTHOR("Manu Abraham");
5101 MODULE_DESCRIPTION("STV090x Multi-Std Broadcast frontend");
5102 MODULE_LICENSE("GPL");