drivers/media/dvb/frontends/stv090x.c

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