SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/dvb/frontends/stb0899_drv.c

   1 /*
   2         STB0899 Multistandard 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
  27 #include <linux/dvb/frontend.h>
  28 #include "dvb_frontend.h"
  29
  30 #include "stb0899_drv.h"
  31 #include "stb0899_priv.h"
  32 #include "stb0899_reg.h"
  33
  34 static unsigned int verbose = 5;
  35 module_param(verbose, int, 0644);
  36
  37 /* C/N in dB/10, NIRM/NIRL */
  38 static const struct stb0899_tab stb0899_cn_tab[] = {
  39         { 200,  2600 },
  40         { 190,  2700 },
  41         { 180,  2860 },
  42         { 170,  3020 },
  43         { 160,  3210 },
  44         { 150,  3440 },
  45         { 140,  3710 },
  46         { 130,  4010 },
  47         { 120,  4360 },
  48         { 110,  4740 },
  49         { 100,  5190 },
  50         { 90,   5670 },
  51         { 80,   6200 },
  52         { 70,   6770 },
  53         { 60,   7360 },
  54         { 50,   7970 },
  55         { 40,   8250 },
  56         { 30,   9000 },
  57         { 20,   9450 },
  58         { 15,   9600 },
  59 };
  60
  61 /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
  62  * As measured, connected to a modulator.
  63  * -8.0 to -50.0 dBm directly connected,
  64  * -52.0 to -74.8 with extra attenuation.
  65  * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
  66  * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
  67  */
  68 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
  69         { -950, -128 },
  70         { -748,  -94 },
  71         { -745,  -92 },
  72         { -735,  -90 },
  73         { -720,  -87 },
  74         { -670,  -77 },
  75         { -640,  -70 },
  76         { -610,  -62 },
  77         { -600,  -60 },
  78         { -590,  -56 },
  79         { -560,  -41 },
  80         { -540,  -25 },
  81         { -530,  -17 },
  82         { -520,  -11 },
  83         { -500,    1 },
  84         { -490,    6 },
  85         { -480,   10 },
  86         { -440,   22 },
  87         { -420,   27 },
  88         { -400,   31 },
  89         { -380,   34 },
  90         { -340,   40 },
  91         { -320,   43 },
  92         { -280,   48 },
  93         { -250,   52 },
  94         { -230,   55 },
  95         { -180,   61 },
  96         { -140,   66 },
  97         {  -90,   73 },
  98         {  -80,   74 },
  99         {  500,  127 }
 100 };
 101
 102 /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
 103  * As measured, connected to a modulator.
 104  * -8.0 to -50.1 dBm directly connected,
 105  * -53.0 to -76.6 with extra attenuation.
 106  * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
 107  * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
 108  */
 109 static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
 110         {  700,     0 },
 111         {  -80,  3217 },
 112         { -150,  3893 },
 113         { -190,  4217 },
 114         { -240,  4621 },
 115         { -280,  4945 },
 116         { -320,  5273 },
 117         { -350,  5545 },
 118         { -370,  5741 },
 119         { -410,  6147 },
 120         { -450,  6671 },
 121         { -490,  7413 },
 122         { -501,  7665 },
 123         { -530,  8767 },
 124         { -560, 10219 },
 125         { -580, 10939 },
 126         { -590, 11518 },
 127         { -600, 11723 },
 128         { -650, 12659 },
 129         { -690, 13219 },
 130         { -730, 13645 },
 131         { -750, 13909 },
 132         { -766, 14153 },
 133         { -999, 16383 }
 134 };
 135
 136 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
 137 struct stb0899_tab stb0899_quant_tab[] = {
 138         {    0,     0 },
 139         {    0,   100 },
 140         {  600,   200 },
 141         {  950,   299 },
 142         { 1200,   398 },
 143         { 1400,   501 },
 144         { 1560,   603 },
 145         { 1690,   700 },
 146         { 1810,   804 },
 147         { 1910,   902 },
 148         { 2000,  1000 },
 149         { 2080,  1096 },
 150         { 2160,  1202 },
 151         { 2230,  1303 },
 152         { 2350,  1496 },
 153         { 2410,  1603 },
 154         { 2460,  1698 },
 155         { 2510,  1799 },
 156         { 2600,  1995 },
 157         { 2650,  2113 },
 158         { 2690,  2213 },
 159         { 2720,  2291 },
 160         { 2760,  2399 },
 161         { 2800,  2512 },
 162         { 2860,  2692 },
 163         { 2930,  2917 },
 164         { 2960,  3020 },
 165         { 3010,  3199 },
 166         { 3040,  3311 },
 167         { 3060,  3388 },
 168         { 3120,  3631 },
 169         { 3190,  3936 },
 170         { 3400,  5012 },
 171         { 3610,  6383 },
 172         { 3800,  7943 },
 173         { 4210, 12735 },
 174         { 4500, 17783 },
 175         { 4690, 22131 },
 176         { 4810, 25410 }
 177 };
 178
 179 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
 180 struct stb0899_tab stb0899_est_tab[] = {
 181         {    0,      0 },
 182         {    0,      1 },
 183         {  301,      2 },
 184         { 1204,     16 },
 185         { 1806,     64 },
 186         { 2408,    256 },
 187         { 2709,    512 },
 188         { 3010,   1023 },
 189         { 3311,   2046 },
 190         { 3612,   4093 },
 191         { 3823,   6653 },
 192         { 3913,   8185 },
 193         { 4010,  10233 },
 194         { 4107,  12794 },
 195         { 4214,  16368 },
 196         { 4266,  18450 },
 197         { 4311,  20464 },
 198         { 4353,  22542 },
 199         { 4391,  24604 },
 200         { 4425,  26607 },
 201         { 4457,  28642 },
 202         { 4487,  30690 },
 203         { 4515,  32734 },
 204         { 4612,  40926 },
 205         { 4692,  49204 },
 206         { 4816,  65464 },
 207         { 4913,  81846 },
 208         { 4993,  98401 },
 209         { 5060, 114815 },
 210         { 5118, 131220 },
 211         { 5200, 158489 },
 212         { 5300, 199526 },
 213         { 5400, 251189 },
 214         { 5500, 316228 },
 215         { 5600, 398107 },
 216         { 5720, 524807 },
 217         { 5721, 526017 },
 218 };
 219
 220 int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
 221 {
 222         int ret;
 223
 224         u8 b0[] = { reg >> 8, reg & 0xff };
 225         u8 buf;
 226
 227         struct i2c_msg msg[] = {
 228                 {
 229                         .addr   = state->config->demod_address,
 230                         .flags  = 0,
 231                         .buf    = b0,
 232                         .len    = 2
 233                 },{
 234                         .addr   = state->config->demod_address,
 235                         .flags  = I2C_M_RD,
 236                         .buf    = &buf,
 237                         .len    = 1
 238                 }
 239         };
 240
 241         ret = i2c_transfer(state->i2c, msg, 2);
 242         if (ret != 2) {
 243                 if (ret != -ERESTARTSYS)
 244                         dprintk(verbose, FE_ERROR, 1,
 245                                 "Read error, Reg=[0x%02x], Status=%d",
 246                                 reg, ret);
 247
 248                 return ret < 0 ? ret : -EREMOTEIO;
 249         }
 250         if (unlikely(verbose >= FE_DEBUGREG))
 251                 dprintk(verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 252                         reg, buf);
 253
 254
 255         return (unsigned int)buf;
 256 }
 257
 258 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
 259 {
 260         int result;
 261
 262         result = _stb0899_read_reg(state, reg);
 263         /*
 264          * Bug ID 9:
 265          * access to 0xf2xx/0xf6xx
 266          * must be followed by read from 0xf2ff/0xf6ff.
 267          */
 268         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 269             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 270                 _stb0899_read_reg(state, (reg | 0x00ff));
 271
 272         return result;
 273 }
 274
 275 u32 _stb0899_read_s2reg(struct stb0899_state *state,
 276                         u32 stb0899_i2cdev,
 277                         u32 stb0899_base_addr,
 278                         u16 stb0899_reg_offset)
 279 {
 280         int status;
 281         u32 data;
 282         u8 buf[7] = { 0 };
 283         u16 tmpaddr;
 284
 285         u8 buf_0[] = {
 286                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 287                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 288                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 289                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 290                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 291                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 292         };
 293         u8 buf_1[] = {
 294                 0x00,   /* 0xf3 Reg Offset      */
 295                 0x00,   /* 0x44 Reg Offset      */
 296         };
 297
 298         struct i2c_msg msg_0 = {
 299                 .addr   = state->config->demod_address,
 300                 .flags  = 0,
 301                 .buf    = buf_0,
 302                 .len    = 6
 303         };
 304
 305         struct i2c_msg msg_1 = {
 306                 .addr   = state->config->demod_address,
 307                 .flags  = 0,
 308                 .buf    = buf_1,
 309                 .len    = 2
 310         };
 311
 312         struct i2c_msg msg_r = {
 313                 .addr   = state->config->demod_address,
 314                 .flags  = I2C_M_RD,
 315                 .buf    = buf,
 316                 .len    = 4
 317         };
 318
 319         tmpaddr = stb0899_reg_offset & 0xff00;
 320         if (!(stb0899_reg_offset & 0x8))
 321                 tmpaddr = stb0899_reg_offset | 0x20;
 322
 323         buf_1[0] = GETBYTE(tmpaddr, BYTE1);
 324         buf_1[1] = GETBYTE(tmpaddr, BYTE0);
 325
 326         status = i2c_transfer(state->i2c, &msg_0, 1);
 327         if (status < 1) {
 328                 if (status != -ERESTARTSYS)
 329                         printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 330                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 331
 332                 goto err;
 333         }
 334
 335         /* Dummy        */
 336         status = i2c_transfer(state->i2c, &msg_1, 1);
 337         if (status < 1)
 338                 goto err;
 339
 340         status = i2c_transfer(state->i2c, &msg_r, 1);
 341         if (status < 1)
 342                 goto err;
 343
 344         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 345         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 346
 347         /* Actual       */
 348         status = i2c_transfer(state->i2c, &msg_1, 1);
 349         if (status < 1) {
 350                 if (status != -ERESTARTSYS)
 351                         printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 352                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 353                 goto err;
 354         }
 355
 356         status = i2c_transfer(state->i2c, &msg_r, 1);
 357         if (status < 1) {
 358                 if (status != -ERESTARTSYS)
 359                         printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 360                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 361                 return status < 0 ? status : -EREMOTEIO;
 362         }
 363
 364         data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
 365         if (unlikely(state->verbose >= FE_DEBUGREG))
 366                 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 367                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
 368
 369         return data;
 370
 371 err:
 372         return status < 0 ? status : -EREMOTEIO;
 373 }
 374
 375 int stb0899_write_s2reg(struct stb0899_state *state,
 376                         u32 stb0899_i2cdev,
 377                         u32 stb0899_base_addr,
 378                         u16 stb0899_reg_offset,
 379                         u32 stb0899_data)
 380 {
 381         int status;
 382
 383         /* Base Address Setup   */
 384         u8 buf_0[] = {
 385                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 386                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 387                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 388                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 389                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 390                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 391         };
 392         u8 buf_1[] = {
 393                 0x00,   /* 0xf3 Reg Offset      */
 394                 0x00,   /* 0x44 Reg Offset      */
 395                 0x00,   /* data                 */
 396                 0x00,   /* data                 */
 397                 0x00,   /* data                 */
 398                 0x00,   /* data                 */
 399         };
 400
 401         struct i2c_msg msg_0 = {
 402                 .addr   = state->config->demod_address,
 403                 .flags  = 0,
 404                 .buf    = buf_0,
 405                 .len    = 6
 406         };
 407
 408         struct i2c_msg msg_1 = {
 409                 .addr   = state->config->demod_address,
 410                 .flags  = 0,
 411                 .buf    = buf_1,
 412                 .len    = 6
 413         };
 414
 415         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 416         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 417         buf_1[2] = GETBYTE(stb0899_data, BYTE0);
 418         buf_1[3] = GETBYTE(stb0899_data, BYTE1);
 419         buf_1[4] = GETBYTE(stb0899_data, BYTE2);
 420         buf_1[5] = GETBYTE(stb0899_data, BYTE3);
 421
 422         if (unlikely(state->verbose >= FE_DEBUGREG))
 423                 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 424                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
 425
 426         status = i2c_transfer(state->i2c, &msg_0, 1);
 427         if (unlikely(status < 1)) {
 428                 if (status != -ERESTARTSYS)
 429                         printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 430                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 431                 goto err;
 432         }
 433         status = i2c_transfer(state->i2c, &msg_1, 1);
 434         if (unlikely(status < 1)) {
 435                 if (status != -ERESTARTSYS)
 436                         printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 437                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 438
 439                 return status < 0 ? status : -EREMOTEIO;
 440         }
 441
 442         return 0;
 443
 444 err:
 445         return status < 0 ? status : -EREMOTEIO;
 446 }
 447
 448 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, size_t count)
 449 {
 450         int status;
 451
 452         u8 b0[] = { reg >> 8, reg & 0xff };
 453
 454         struct i2c_msg msg[] = {
 455                 {
 456                         .addr   = state->config->demod_address,
 457                         .flags  = 0,
 458                         .buf    = b0,
 459                         .len    = 2
 460                 },{
 461                         .addr   = state->config->demod_address,
 462                         .flags  = I2C_M_RD,
 463                         .buf    = buf,
 464                         .len    = count
 465                 }
 466         };
 467
 468         status = i2c_transfer(state->i2c, msg, 2);
 469         if (status != 2) {
 470                 if (status != -ERESTARTSYS)
 471                         printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
 472                                __func__, reg, count, status);
 473                 goto err;
 474         }
 475         /*
 476          * Bug ID 9:
 477          * access to 0xf2xx/0xf6xx
 478          * must be followed by read from 0xf2ff/0xf6ff.
 479          */
 480         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 481             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 482                 _stb0899_read_reg(state, (reg | 0x00ff));
 483
 484         if (unlikely(state->verbose >= FE_DEBUGREG)) {
 485                 int i;
 486
 487                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 488                 for (i = 0; i < count; i++) {
 489                         printk(" %02x", buf[i]);
 490                 }
 491                 printk("\n");
 492         }
 493
 494         return 0;
 495 err:
 496         return status < 0 ? status : -EREMOTEIO;
 497 }
 498
 499 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, size_t count)
 500 {
 501         int ret;
 502         u8 buf[2 + count];
 503         struct i2c_msg i2c_msg = {
 504                 .addr   = state->config->demod_address,
 505                 .flags  = 0,
 506                 .buf    = buf,
 507                 .len    = 2 + count
 508         };
 509
 510         buf[0] = reg >> 8;
 511         buf[1] = reg & 0xff;
 512         memcpy(&buf[2], data, count);
 513
 514         if (unlikely(state->verbose >= FE_DEBUGREG)) {
 515                 int i;
 516
 517                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 518                 for (i = 0; i < count; i++)
 519                         printk(" %02x", data[i]);
 520                 printk("\n");
 521         }
 522         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 523
 524         /*
 525          * Bug ID 9:
 526          * access to 0xf2xx/0xf6xx
 527          * must be followed by read from 0xf2ff/0xf6ff.
 528          */
 529         if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 530                 stb0899_read_reg(state, (reg | 0x00ff));
 531
 532         if (ret != 1) {
 533                 if (ret != -ERESTARTSYS)
 534                         dprintk(verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 535                                 reg, data[0], count, ret);
 536                 return ret < 0 ? ret : -EREMOTEIO;
 537         }
 538
 539         return 0;
 540 }
 541
 542 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
 543 {
 544         return stb0899_write_regs(state, reg, &data, 1);
 545 }
 546
 547 /*
 548  * stb0899_get_mclk
 549  * Get STB0899 master clock frequency
 550  * ExtClk: external clock frequency (Hz)
 551  */
 552 static u32 stb0899_get_mclk(struct stb0899_state *state)
 553 {
 554         u32 mclk = 90000000, div = 0;
 555
 556         div = stb0899_read_reg(state, STB0899_NCOARSE);
 557         mclk = (div + 1) * state->config->xtal_freq / 6;
 558         dprintk(verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
 559
 560         return mclk;
 561 }
 562
 563 /*
 564  * stb0899_set_mclk
 565  * Set STB0899 master Clock frequency
 566  * Mclk: demodulator master clock
 567  * ExtClk: external clock frequency (Hz)
 568  */
 569 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
 570 {
 571         struct stb0899_internal *internal = &state->internal;
 572         u8 mdiv = 0;
 573
 574         dprintk(verbose, FE_DEBUG, 1, "state->config=%p", state->config);
 575         mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
 576         dprintk(verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
 577
 578         stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
 579         internal->master_clk = stb0899_get_mclk(state);
 580
 581         dprintk(verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
 582 }
 583
 584 static void stb0899_release(struct dvb_frontend *fe)
 585 {
 586         struct stb0899_state *state = fe->demodulator_priv;
 587
 588         dprintk(verbose, FE_DEBUG, 1, "Release Frontend");
 589         kfree(state);
 590 }
 591
 592 /*
 593  * stb0899_get_alpha
 594  * return: rolloff
 595  */
 596 static int stb0899_get_alpha(struct stb0899_state *state)
 597 {
 598         u8 mode_coeff;
 599
 600         mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
 601
 602         if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
 603                 return 20;
 604         else
 605                 return 35;
 606 }
 607
 608 /*
 609  * stb0899_init_calc
 610  */
 611 static void stb0899_init_calc(struct stb0899_state *state)
 612 {
 613         struct stb0899_internal *internal = &state->internal;
 614         int master_clk;
 615         u8 agc[1];
 616         u8 agc1cn;
 617         u32 reg;
 618
 619         /* Read registers (in burst mode)       */
 620         agc1cn = stb0899_read_reg(state, STB0899_AGC1CN);
 621         stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O   */
 622
 623         /* Initial calculations */
 624         master_clk                      = stb0899_get_mclk(state);
 625         internal->t_agc1                = 0;
 626         internal->t_agc2                = 0;
 627         internal->master_clk            = master_clk;
 628         internal->mclk                  = master_clk / 65536L;
 629         internal->rolloff               = stb0899_get_alpha(state);
 630
 631         /* DVBS2 Initial calculations   */
 632         /* Set AGC value to the middle  */
 633         internal->agc_gain              = 8154;
 634         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
 635         STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
 636         stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
 637
 638         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
 639         internal->rrc_alpha             = STB0899_GETFIELD(RRC_ALPHA, reg);
 640
 641         internal->center_freq           = 0;
 642         internal->av_frame_coarse       = 10;
 643         internal->av_frame_fine         = 20;
 644         internal->step_size             = 2;
 645 /*
 646         if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
 647                 pParams->IQLocked = 0;
 648         else
 649                 pParams->IQLocked = 1;
 650 */
 651 }
 652
 653 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
 654 {
 655         u8 reg = 0;
 656         unsigned long start = jiffies;
 657
 658         while (1) {
 659                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 660                 if (!STB0899_GETFIELD(FIFOFULL, reg))
 661                         break;
 662                 if ((jiffies - start) > timeout) {
 663                         dprintk(verbose, FE_ERROR, 1, "timed out !!");
 664                         return -ETIMEDOUT;
 665                 }
 666         }
 667
 668         return 0;
 669 }
 670
 671 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
 672 {
 673         struct stb0899_state *state = fe->demodulator_priv;
 674         u8 reg, i;
 675
 676         if (cmd->msg_len > 8)
 677                 return -EINVAL;
 678
 679         /* enable FIFO precharge        */
 680         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 681         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
 682         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 683         for (i = 0; i < cmd->msg_len; i++) {
 684                 /* wait for FIFO empty  */
 685                 if (stb0899_wait_diseqc_fifo_empty(state, 10) < 0)
 686                         return -ETIMEDOUT;
 687
 688                 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
 689         }
 690         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 691         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
 692         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 693
 694         return 0;
 695 }
 696
 697 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
 698 {
 699         u8 reg = 0;
 700         unsigned long start = jiffies;
 701
 702         while (!STB0899_GETFIELD(RXEND, reg)) {
 703                 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 704                 if (jiffies - start > timeout) {
 705                         dprintk(verbose, FE_ERROR, 1, "timed out!!");
 706                         return -ETIMEDOUT;
 707                 }
 708                 msleep(10);
 709         }
 710
 711         return 0;
 712 }
 713
 714 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
 715 {
 716         struct stb0899_state *state = fe->demodulator_priv;
 717         u8 reg, length = 0, i;
 718         int result;
 719
 720         if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
 721                 return -ETIMEDOUT;
 722
 723         reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 724         if (STB0899_GETFIELD(RXEND, reg)) {
 725
 726                 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
 727                 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
 728
 729                 if (length > sizeof (reply->msg)) {
 730                         result = -EOVERFLOW;
 731                         goto exit;
 732                 }
 733                 reply->msg_len = length;
 734
 735                 /* extract data */
 736                 for (i = 0; i < length; i++)
 737                         reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
 738         }
 739
 740         return 0;
 741 exit:
 742
 743         return result;
 744 }
 745
 746 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
 747 {
 748         u8 reg = 0;
 749         unsigned long start = jiffies;
 750
 751         while (!STB0899_GETFIELD(TXIDLE, reg)) {
 752                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 753                 if (jiffies - start > timeout) {
 754                         dprintk(verbose, FE_ERROR, 1, "timed out!!");
 755                         return -ETIMEDOUT;
 756                 }
 757                 msleep(10);
 758         }
 759         return 0;
 760 }
 761
 762 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
 763 {
 764         struct stb0899_state *state = fe->demodulator_priv;
 765         u8 reg, old_state;
 766
 767         /* wait for diseqc idle */
 768         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 769                 return -ETIMEDOUT;
 770
 771         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 772         old_state = reg;
 773         /* set to burst mode    */
 774         STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x02);
 775         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
 776         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 777         switch (burst) {
 778         case SEC_MINI_A:
 779                 /* unmodulated  */
 780                 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
 781                 break;
 782         case SEC_MINI_B:
 783                 /* modulated    */
 784                 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
 785                 break;
 786         }
 787         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 788         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
 789         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 790         /* wait for diseqc idle */
 791         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 792                 return -ETIMEDOUT;
 793
 794         /* restore state        */
 795         stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
 796
 797         return 0;
 798 }
 799
 800
 801 static int stb0899_sleep(struct dvb_frontend *fe)
 802 {
 803         struct stb0899_state *state = fe->demodulator_priv;
 804         u8 reg;
 805
 806         dprintk(verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
 807
 808         reg = stb0899_read_reg(state, STB0899_SYNTCTRL);
 809         STB0899_SETFIELD_VAL(STANDBY, reg, 1);
 810         stb0899_write_reg(state, STB0899_SYNTCTRL, reg);
 811
 812         return 0;
 813 }
 814
 815 static int stb0899_wakeup(struct dvb_frontend *fe)
 816 {
 817         int rc;
 818         struct stb0899_state *state = fe->demodulator_priv;
 819
 820         if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
 821                 return rc;
 822         /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
 823         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
 824                 return rc;
 825         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
 826                 return rc;
 827
 828         return 0;
 829 }
 830
 831 static int stb0899_init(struct dvb_frontend *fe)
 832 {
 833         int i;
 834         struct stb0899_state *state = fe->demodulator_priv;
 835         struct stb0899_config *config = state->config;
 836
 837         dprintk(verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
 838 //      mutex_init(&state->search_lock);
 839
 840         /* init device          */
 841         dprintk(verbose, FE_DEBUG, 1, "init device");
 842         for (i = 0; config->init_dev[i].address != 0xffff; i++)
 843                 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
 844
 845         dprintk(verbose, FE_DEBUG, 1, "init S2 demod");
 846         /* init S2 demod        */
 847         for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
 848                 stb0899_write_s2reg(state, STB0899_S2DEMOD,
 849                                     config->init_s2_demod[i].base_address,
 850                                     config->init_s2_demod[i].offset,
 851                                     config->init_s2_demod[i].data);
 852
 853         dprintk(verbose, FE_DEBUG, 1, "init S1 demod");
 854         /* init S1 demod        */
 855         for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
 856                 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
 857
 858         dprintk(verbose, FE_DEBUG, 1, "init S2 FEC");
 859         /* init S2 fec          */
 860         for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
 861                 stb0899_write_s2reg(state, STB0899_S2FEC,
 862                                     config->init_s2_fec[i].base_address,
 863                                     config->init_s2_fec[i].offset,
 864                                     config->init_s2_fec[i].data);
 865
 866         dprintk(verbose, FE_DEBUG, 1, "init TST");
 867         /* init test            */
 868         for (i = 0; config->init_tst[i].address != 0xffff; i++)
 869                 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
 870
 871         stb0899_init_calc(state);
 872 //      stb0899_diseqc_init(state);
 873
 874         return 0;
 875 }
 876
 877 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
 878 {
 879         int res = 0;
 880         int min = 0, med;
 881
 882         if (val < tab[min].read)
 883                 res = tab[min].real;
 884         else if (val >= tab[max].read)
 885                 res = tab[max].real;
 886         else {
 887                 while ((max - min) > 1) {
 888                         med = (max + min) / 2;
 889                         if (val >= tab[min].read && val < tab[med].read)
 890                                 max = med;
 891                         else
 892                                 min = med;
 893                 }
 894                 res = ((val - tab[min].read) *
 895                        (tab[max].real - tab[min].real) /
 896                        (tab[max].read - tab[min].read)) +
 897                         tab[min].real;
 898         }
 899
 900         return res;
 901 }
 902
 903 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 904 {
 905         struct stb0899_state *state             = fe->demodulator_priv;
 906         struct stb0899_internal *internal       = &state->internal;
 907
 908         int val;
 909         u32 reg;
 910         switch (state->delsys) {
 911         case DVBFE_DELSYS_DVBS:
 912         case DVBFE_DELSYS_DSS:
 913                 if (internal->lock) {
 914                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
 915                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
 916
 917                                 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
 918                                 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
 919
 920                                 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
 921                                 *strength += 750;
 922                                 dprintk(verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
 923                                         val & 0xff, *strength);
 924                         }
 925                 }
 926                 break;
 927         case DVBFE_DELSYS_DVBS2:
 928                 if (internal->lock) {
 929                         reg = STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN);
 930                         val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
 931
 932                         *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
 933                         *strength += 750;
 934                         dprintk(verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
 935                                 val & 0x3fff, *strength);
 936                 }
 937                 break;
 938         default:
 939                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
 940                 break;
 941         }
 942
 943         return 0;
 944 }
 945
 946 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
 947 {
 948         struct stb0899_state *state             = fe->demodulator_priv;
 949         struct stb0899_internal *internal       = &state->internal;
 950
 951         unsigned int val, quant, quantn = -1, est, estn = -1;
 952         u8 buf[2];
 953         u32 reg;
 954
 955         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
 956         switch (state->delsys) {
 957         case DVBFE_DELSYS_DVBS:
 958         case DVBFE_DELSYS_DSS:
 959                 if (internal->lock) {
 960                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
 961
 962                                 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
 963                                 val = MAKEWORD16(buf[0], buf[1]);
 964
 965                                 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
 966                                 dprintk(verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
 967                                         buf[0], buf[1], val, *snr);
 968                         }
 969                 }
 970                 break;
 971         case DVBFE_DELSYS_DVBS2:
 972                 if (internal->lock) {
 973                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
 974                         quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
 975                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
 976                         est = STB0899_GETFIELD(ESN0_EST, reg);
 977                         if (est == 1)
 978                                 val = 301; /* C/N = 30.1 dB */
 979                         else if (est == 2)
 980                                 val = 270; /* C/N = 27.0 dB */
 981                         else {
 982                                 /* quantn = 100 * log(quant^2) */
 983                                 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
 984                                 /* estn = 100 * log(est) */
 985                                 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
 986                                 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
 987                                 val = (quantn - estn) / 10;
 988                         }
 989                         *snr = val;
 990                         dprintk(verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
 991                                 quant, quantn, est, estn, val);
 992                 }
 993                 break;
 994         default:
 995                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
 996                 break;
 997         }
 998
 999         return 0;
1000 }
1001
1002 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1003 {
1004         struct stb0899_state *state             = fe->demodulator_priv;
1005         struct stb0899_internal *internal       = &state->internal;
1006         u8 reg;
1007         *status = 0;
1008
1009         switch (state->delsys) {
1010         case DVBFE_DELSYS_DVBS:
1011         case DVBFE_DELSYS_DSS:
1012                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1013                 if (internal->lock) {
1014                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
1015                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1016                                 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1017                                 *status |= FE_HAS_CARRIER | FE_HAS_LOCK;
1018
1019                                 reg = stb0899_read_reg(state, STB0899_PLPARM);
1020                                 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1021                                         dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1022                                         *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1023                                 }
1024                         }
1025                 }
1026                 break;
1027         case DVBFE_DELSYS_DVBS2:
1028                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1029                 if (internal->lock) {
1030                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1031                         if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1032                                 *status |= FE_HAS_CARRIER;
1033                                 dprintk(state->verbose, FE_DEBUG, 1,
1034                                         "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1035
1036                                 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1037                                 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1038                                         *status |= FE_HAS_LOCK;
1039                                         dprintk(state->verbose, FE_DEBUG, 1,
1040                                                 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1041
1042                                 }
1043                                 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1044                                         *status |= FE_HAS_VITERBI;
1045                                         dprintk(state->verbose, FE_DEBUG, 1,
1046                                                 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1047                                 }
1048                                 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1049                                         *status |= FE_HAS_SYNC;
1050                                         dprintk(state->verbose, FE_DEBUG, 1,
1051                                                 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1052                                 }
1053                         }
1054                 }
1055                 break;
1056         default:
1057                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1058                 break;
1059         }
1060         return 0;
1061 }
1062
1063 /*
1064  * stb0899_get_error
1065  * viterbi error for DVB-S/DSS
1066  * packet error for DVB-S2
1067  * Bit Error Rate or Packet Error Rate * 10 ^ 7
1068  */
1069 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1070 {
1071         struct stb0899_state *state             = fe->demodulator_priv;
1072         struct stb0899_internal *internal       = &state->internal;
1073
1074         u8  lsb, msb;
1075         u32 i;
1076
1077         *ber = 0;
1078
1079         switch (state->delsys) {
1080         case DVBFE_DELSYS_DVBS:
1081         case DVBFE_DELSYS_DSS:
1082                 if (internal->lock) {
1083                         /* average 5 BER values */
1084                         for (i = 0; i < 5; i++) {
1085                                 msleep(100);
1086                                 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1087                                 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1088                                 *ber += MAKEWORD16(msb, lsb);
1089                         }
1090                         *ber /= 5;
1091                         /* Viterbi Check        */
1092                         if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1093                                 /* Error Rate           */
1094                                 *ber *= 9766;
1095                                 /* ber = ber * 10 ^ 7   */
1096                                 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1097                                 *ber /= 8;
1098                         }
1099                 }
1100                 break;
1101         case DVBFE_DELSYS_DVBS2:
1102                 if (internal->lock) {
1103                         /* Average 5 PER values */
1104                         for (i = 0; i < 5; i++) {
1105                                 msleep(100);
1106                                 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1107                                 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1108                                 *ber += MAKEWORD16(msb, lsb);
1109                         }
1110                         /* ber = ber * 10 ^ 7   */
1111                         *ber *= 10000000;
1112                         *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1113                 }
1114                 break;
1115         default:
1116                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1117         }
1118
1119         return 0;
1120 }
1121
1122 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1123 {
1124         struct stb0899_state *state = fe->demodulator_priv;
1125
1126         switch (voltage) {
1127         case SEC_VOLTAGE_13:
1128                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1129                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1130                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1131                 break;
1132         case SEC_VOLTAGE_18:
1133                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1134                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1135                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1136                 break;
1137         case SEC_VOLTAGE_OFF:
1138                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1139                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1140                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1141                 break;
1142         default:
1143                 return -EINVAL;
1144         }
1145
1146         return 0;
1147 }
1148
1149 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1150 {
1151         struct stb0899_state *state = fe->demodulator_priv;
1152         struct stb0899_internal *internal = &state->internal;
1153
1154         u8 div;
1155
1156         /* wait for diseqc idle */
1157         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1158                 return -ETIMEDOUT;
1159
1160         switch (tone) {
1161         case SEC_TONE_ON:
1162                 div = (internal->master_clk / 100) / 5632;
1163                 div = (div + 5) / 10;
1164                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1165                 stb0899_write_reg(state, STB0899_ACRPRESC, 0x31);
1166                 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1167                 break;
1168         case SEC_TONE_OFF:
1169                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1170                 break;
1171         default:
1172                 break;
1173         }
1174         return 0;
1175 }
1176
1177 static int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1178 {
1179         int i2c_stat;
1180         struct stb0899_state *state = fe->demodulator_priv;
1181
1182         i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1183         if (i2c_stat < 0)
1184                 goto err;
1185
1186         if (enable) {
1187                 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1188                 i2c_stat |=  STB0899_I2CTON;
1189                 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1190                         goto err;
1191         }
1192         return 0;
1193 err:
1194         dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater enable failed");
1195         return -EREMOTEIO;
1196 }
1197
1198
1199 static inline void CONVERT32(u32 x, char *str)
1200 {
1201         *str++  = (x >> 24) & 0xff;
1202         *str++  = (x >> 16) & 0xff;
1203         *str++  = (x >>  8) & 0xff;
1204         *str++  = (x >>  0) & 0xff;
1205         *str    = '\0';
1206 }
1207
1208 int stb0899_get_dev_id(struct stb0899_state *state)
1209 {
1210         u8 chip_id, release;
1211         u16 id;
1212         u32 demod_ver = 0, fec_ver = 0;
1213         char demod_str[4] = { 0 };
1214         char fec_str[4] = { 0 };
1215
1216         id = stb0899_read_reg(state, STB0899_DEV_ID);
1217         dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1218         chip_id = STB0899_GETFIELD(CHIP_ID, id);
1219         release = STB0899_GETFIELD(CHIP_REL, id);
1220
1221         dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1222                 chip_id, release);
1223
1224         CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1225
1226         demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1227         dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1228         CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1229         fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1230         if (! (chip_id > 0)) {
1231                 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1232
1233                 return -ENODEV;
1234         }
1235         dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1236
1237         return 0;
1238 }
1239
1240 static const struct dvbfe_info dvbs_info        = {
1241         .name                                   = "STB0899 DVB-S",
1242         .delivery                               = DVBFE_DELSYS_DVBS,
1243         .delsys                                 = {
1244                 .dvbs.modulation                = DVBFE_MOD_QPSK,
1245                 .dvbs.fec                       = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1246                                                   DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1247                                                   DVBFE_FEC_6_7
1248         },
1249
1250         .frequency_min                          = 950000,
1251         .frequency_max                          = 2150000,
1252         .frequency_step                         = 0,
1253         .symbol_rate_min                        = 1000000,
1254         .symbol_rate_max                        = 45000000,
1255         .symbol_rate_tolerance                  = 0
1256 };
1257
1258 static const struct dvbfe_info dss_info         = {
1259         .name                                   = "STB0899 DSS",
1260         .delivery                               = DVBFE_DELSYS_DSS,
1261         .delsys                                 = {
1262                 .dss.modulation                 = DVBFE_MOD_BPSK | DVBFE_MOD_QPSK,
1263                 .dss.fec                        = DVBFE_FEC_1_2  | DVBFE_FEC_2_3 |
1264                                                   DVBFE_FEC_3_4  | DVBFE_FEC_5_6 |
1265                                                   DVBFE_FEC_6_7
1266         },
1267
1268         .frequency_min                          = 950000,
1269         .frequency_max                          = 2150000,
1270         .frequency_step                         = 0,
1271         .symbol_rate_min                        = 1000000,
1272         .symbol_rate_max                        = 45000000,
1273         .symbol_rate_tolerance                  = 0
1274 };
1275
1276 static const struct dvbfe_info dvbs2_info       = {
1277         .name                                   = "STB0899 DVB-S2",
1278         .delivery                               = DVBFE_DELSYS_DVBS2,
1279         .delsys                                 = {
1280                 .dvbs2.modulation               = DVBFE_MOD_QPSK   | DVBFE_MOD_8PSK |
1281                                                   DVBFE_MOD_16APSK | DVBFE_MOD_32APSK,
1282
1283                 .dvbs2.fec                      = DVBFE_FEC_1_4 | DVBFE_FEC_1_3 |
1284                                                   DVBFE_FEC_2_5 | DVBFE_FEC_1_2 |
1285                                                   DVBFE_FEC_3_5 | DVBFE_FEC_2_3 |
1286                                                   DVBFE_FEC_3_4 | DVBFE_FEC_4_5 |
1287                                                   DVBFE_FEC_5_6 | DVBFE_FEC_8_9 |
1288                                                   DVBFE_FEC_9_10,
1289         },
1290
1291         .frequency_min          = 950000,
1292         .frequency_max          = 2150000,
1293         .frequency_step         = 0,
1294         .symbol_rate_min        = 1000000,
1295         .symbol_rate_max        = 45000000,
1296         .symbol_rate_tolerance  = 0
1297 };
1298
1299 static int stb0899_get_info(struct dvb_frontend *fe, struct dvbfe_info *fe_info)
1300 {
1301         struct stb0899_state *state = fe->demodulator_priv;
1302
1303         dprintk(verbose, FE_DEBUG, 1, "Get Info");
1304
1305         state->delsys = fe_info->delivery;
1306         switch (state->delsys) {
1307         case DVBFE_DELSYS_DVBS:
1308                 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S info");
1309                 memcpy(fe_info, &dvbs_info, sizeof (struct dvbfe_info));
1310                 break;
1311         case DVBFE_DELSYS_DSS:
1312                 dprintk(verbose, FE_ERROR, 1, "Querying DSS info");
1313                 memcpy(fe_info, &dss_info, sizeof (struct dvbfe_info));
1314                 break;
1315         case DVBFE_DELSYS_DVBS2:
1316                 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S2 info");
1317                 memcpy(fe_info, &dvbs2_info, sizeof (struct dvbfe_info));
1318                 break;
1319         default:
1320                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1321                 return -EINVAL;
1322         }
1323         dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1324
1325         return 0;
1326 }
1327
1328 static int stb0899_get_delsys(struct dvb_frontend *fe, enum dvbfe_delsys *fe_delsys)
1329 {
1330         *fe_delsys = DVBFE_DELSYS_DVBS | DVBFE_DELSYS_DSS | DVBFE_DELSYS_DVBS2;
1331
1332         return 0;
1333 }
1334
1335 void stb0899_set_delsys(struct stb0899_state *state)
1336 {
1337         u8 reg;
1338         u8 stop_clk[2];
1339
1340         stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1341         stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1342
1343         switch (state->delsys) {
1344         case DVBFE_DELSYS_DVBS:
1345                 dprintk(verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1346                 /* FECM/Viterbi ON      */
1347                 reg = stb0899_read_reg(state, STB0899_FECM);
1348                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1349                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1350                 stb0899_write_reg(state, STB0899_FECM, reg);
1351
1352                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1353                 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1354                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1355                 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1356
1357                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1358                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1359                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1360
1361                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1362                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1363                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1364
1365                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1366                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1367
1368                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1369                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 1);
1370
1371                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1372                 break;
1373         case DVBFE_DELSYS_DVBS2:
1374                 /* FECM/Viterbi OFF     */
1375                 reg = stb0899_read_reg(state, STB0899_FECM);
1376                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1377                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1378                 stb0899_write_reg(state, STB0899_FECM, reg);
1379
1380                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1381                 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1382                 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1383                 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1384
1385                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1386                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1387                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1388
1389                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1390                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1391                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1392
1393                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1394                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1395
1396                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1397                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1398
1399                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1400                 break;
1401         case DVBFE_DELSYS_DSS:
1402                 /* FECM/Viterbi ON      */
1403                 reg = stb0899_read_reg(state, STB0899_FECM);
1404                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1405                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1406                 stb0899_write_reg(state, STB0899_FECM, reg);
1407
1408                 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1409                 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1410                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1411
1412                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1413                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1414                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1415
1416                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1417                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1418                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1419
1420                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1421                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1422
1423                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1424
1425                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1426                 break;
1427         default:
1428                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1429                 break;
1430         }
1431         STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1432         stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1433 }
1434
1435 /*
1436  * stb0899_set_iterations
1437  * set the LDPC iteration scale function
1438  */
1439 static void stb0899_set_iterations(struct stb0899_state *state)
1440 {
1441         struct stb0899_internal *internal = &state->internal;
1442         struct stb0899_config *config = state->config;
1443
1444         s32 iter_scale;
1445         u32 reg;
1446
1447         iter_scale = 17 * (internal->master_clk / 1000);
1448         iter_scale += 410000;
1449         iter_scale /= (internal->srate / 1000000);
1450         iter_scale /= 1000;
1451
1452         if (iter_scale > config->ldpc_max_iter)
1453                 iter_scale = config->ldpc_max_iter;
1454
1455         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
1456         STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1457         stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1458 }
1459
1460 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvbfe_params *params)
1461 {
1462         struct stb0899_state *state = fe->demodulator_priv;
1463         struct stb0899_params *i_params = &state->params;
1464         struct stb0899_internal *internal = &state->internal;
1465
1466         u32 SearchRange, gain;
1467
1468         switch (state->delsys) {
1469         case DVBFE_DELSYS_DVBS:
1470                 dprintk(verbose, FE_ERROR, 1, "set DVB-S params");
1471                 i_params->freq  = params->frequency;
1472                 i_params->srate = params->delsys.dvbs.symbol_rate;
1473                 break;
1474         case DVBFE_DELSYS_DSS:
1475                 dprintk(verbose, FE_ERROR, 1, "set DSS params");
1476                 i_params->freq  = params->frequency;
1477                 i_params->srate = params->delsys.dss.symbol_rate;
1478                 break;
1479         case DVBFE_DELSYS_DVBS2:
1480                 dprintk(verbose, FE_ERROR, 1, "set DVB-S2 params");
1481                 i_params->freq  = params->frequency;
1482                 i_params->srate = params->delsys.dvbs2.symbol_rate;
1483                 break;
1484         default:
1485                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1486                 return -EINVAL;
1487         }
1488         dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1489
1490 //      SearchRange = 3000000; /* Search Bandwidth (3 Mhz, was initially 10  Mhz)       */
1491         SearchRange = 10000000; /* Search Bandwidth (3 Mhz, was initially 10  Mhz)      */
1492         dprintk(verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1493         /* checking Search Range is meaningless for a fixed 3 Mhz                       */
1494         if (INRANGE(i_params->srate, 1000000, 45000000)) {
1495                 dprintk(verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1496                 stb0899_set_delsys(state);
1497
1498                 if (state->config->tuner_set_rfsiggain) {
1499                         if (internal->srate > 15000000)
1500                                 gain =  8;      /* 15Mb < srate < 45Mb, gain = 8dB      */
1501                         else if (internal->srate > 5000000)
1502                                 gain = 12;      /*  5Mb < srate < 15Mb, gain = 12dB     */
1503                         else
1504                                 gain = 14;      /*  1Mb < srate <  5Mb, gain = 14db     */
1505                         state->config->tuner_set_rfsiggain(fe, gain);
1506                 }
1507
1508                 if (i_params->srate <= 5000000)
1509                         stb0899_set_mclk(state, 76500000);
1510                 else
1511                         stb0899_set_mclk(state, 90000000);
1512
1513                 switch (state->delsys) {
1514                 case DVBFE_DELSYS_DVBS:
1515                 case DVBFE_DELSYS_DSS:
1516                         dprintk(verbose, FE_DEBUG, 1, "DVB-S delivery system");
1517                         internal->freq  = i_params->freq;
1518                         internal->srate = i_params->srate;
1519                         /*
1520                          * search = user search range +
1521                          *          500Khz +
1522                          *          2 * Tuner_step_size +
1523                          *          10% of the symbol rate
1524                          */
1525                         internal->srch_range    = SearchRange + 1500000 + (i_params->srate / 5);
1526                         internal->derot_percent = 30;
1527
1528                         /* What to do for tuners having no bandwidth setup ?    */
1529                         if (state->config->tuner_set_bandwidth)
1530                                 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + 10000000)) / 10);
1531                         if (state->config->tuner_get_bandwidth)
1532                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1533                         /* Set DVB-S1 AGC               */
1534                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1535
1536                         /* Run the search algorithm     */
1537                         dprintk(verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1538                         if (stb0899_dvbs_algo(state)    == RANGEOK) {
1539                                 internal->lock          = 1;
1540                                 dprintk(verbose, FE_DEBUG, 1,
1541                                         "-------------------------------------> DVB-S LOCK !");
1542
1543 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors     */
1544 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1545 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1546 //                              dprintk(verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1547 //                              dprintk(verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1548
1549                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1550                         } else {
1551                                 internal->lock          = 0;
1552
1553                                 return DVBFE_ALGO_SEARCH_FAILED;
1554                         }
1555                         break;
1556                 case DVBFE_DELSYS_DVBS2:
1557                         internal->freq                  = i_params->freq;
1558                         internal->srate                 = i_params->srate;
1559                         internal->srch_range            = SearchRange;
1560
1561                         if (state->config->tuner_set_bandwidth)
1562                                 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + 10000000));
1563                         if (state->config->tuner_get_bandwidth)
1564                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1565
1566 //                      pParams->SpectralInv            = pSearch->IQ_Inversion;
1567
1568                         /* Set DVB-S2 AGC               */
1569                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1570
1571                         /* Set IterScale =f(MCLK,SYMB)  */
1572                         stb0899_set_iterations(state);
1573
1574                         /* Run the search algorithm     */
1575                         dprintk(verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1576                         if (stb0899_dvbs2_algo(state)   == DVBS2_FEC_LOCK) {
1577                                 internal->lock          = 1;
1578                                 dprintk(verbose, FE_DEBUG, 1,
1579                                         "-------------------------------------> DVB-S2 LOCK !");
1580
1581 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors      */
1582 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1583 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1584
1585                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1586                         } else {
1587                                 internal->lock          = 0;
1588
1589                                 return DVBFE_ALGO_SEARCH_FAILED;
1590                         }
1591                         break;
1592                 default:
1593                         dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1594                         return DVBFE_ALGO_SEARCH_INVALID;
1595                 }
1596         }
1597
1598         return DVBFE_ALGO_SEARCH_ERROR;
1599 }
1600
1601 static enum stb0899_status stb0899_track_carrier(struct stb0899_state *state)
1602 {
1603         u8 reg;
1604
1605         reg = stb0899_read_reg(state, STB0899_DSTATUS);
1606         dprintk(verbose, FE_DEBUG, 1, "--------------------> STB0899_DSTATUS=[0x%02x]", reg);
1607         if (STB0899_GETFIELD(CARRIER_FOUND, reg)) {
1608                 dprintk(verbose, FE_DEBUG, 1, "-------------> CARRIEROK !");
1609                 return CARRIEROK;
1610         } else {
1611                 dprintk(verbose, FE_DEBUG, 1, "-------------> NOCARRIER !");
1612                 return NOCARRIER;
1613         }
1614
1615         return NOCARRIER;
1616 }
1617
1618 static enum stb0899_status stb0899_get_ifagc(struct stb0899_state *state)
1619 {
1620         u8 reg;
1621
1622         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STATUS);
1623         dprintk(verbose, FE_DEBUG, 1, "DMD_STATUS=[0x%02x]", reg);
1624         if (STB0899_GETFIELD(IF_AGC_LOCK, reg)) {
1625                 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCKED !");
1626                 return AGC1OK;
1627         } else {
1628                 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCK LOST !");
1629                 return NOAGC1;
1630         }
1631
1632         return NOAGC1;
1633 }
1634
1635 static int stb0899_get_s1fec(struct stb0899_internal *internal, enum dvbfe_fec *fec)
1636 {
1637         switch (internal->fecrate) {
1638         case STB0899_FEC_1_2:
1639                 *fec = DVBFE_FEC_1_2;
1640                 break;
1641         case STB0899_FEC_2_3:
1642                 *fec = DVBFE_FEC_2_3;
1643                 break;
1644         case STB0899_FEC_3_4:
1645                 *fec = DVBFE_FEC_3_4;
1646                 break;
1647         case STB0899_FEC_5_6:
1648                 *fec = DVBFE_FEC_5_6;
1649                 break;
1650         case STB0899_FEC_6_7:
1651                 *fec = DVBFE_FEC_6_7;
1652                 break;
1653         case STB0899_FEC_7_8:
1654                 *fec = DVBFE_FEC_7_8;
1655                 break;
1656         default:
1657                 return -EINVAL;
1658         }
1659
1660         return 0;
1661 }
1662
1663 static int stb0899_get_modcod(struct stb0899_internal *internal, struct dvbs2_params *params)
1664 {
1665         switch (internal->modcod) {
1666         case STB0899_DUMMY_PLF:
1667                 params->modulation      = DVBFE_MOD_NONE;
1668                 params->fec             = DVBFE_FEC_NONE;
1669                 break;
1670         case STB0899_QPSK_14:
1671                 params->modulation      = DVBFE_MOD_QPSK;
1672                 params->fec             = DVBFE_FEC_1_4;
1673                 break;
1674         case STB0899_QPSK_13:
1675                 params->modulation      = DVBFE_MOD_QPSK;
1676                 params->fec             = DVBFE_FEC_1_3;
1677                 break;
1678         case STB0899_QPSK_25:
1679                 params->modulation      = DVBFE_MOD_QPSK;
1680                 params->fec             = DVBFE_FEC_2_5;
1681                 break;
1682         case STB0899_QPSK_12:
1683                 params->modulation      = DVBFE_MOD_QPSK;
1684                 params->fec             = DVBFE_FEC_1_2;
1685                 break;
1686         case STB0899_QPSK_35:
1687                 params->modulation      = DVBFE_MOD_QPSK;
1688                 params->fec             = DVBFE_FEC_3_5;
1689                 break;
1690         case STB0899_QPSK_23:
1691                 params->modulation      = DVBFE_MOD_QPSK;
1692                 params->fec             = DVBFE_FEC_2_3;
1693                 break;
1694         case STB0899_QPSK_34:
1695                 params->modulation      = DVBFE_MOD_QPSK;
1696                 params->fec             = DVBFE_FEC_3_4;
1697                 break;
1698         case STB0899_QPSK_45:
1699                 params->modulation      = DVBFE_MOD_QPSK;
1700                 params->fec             = DVBFE_FEC_4_5;
1701                 break;
1702         case STB0899_QPSK_56:
1703                 params->modulation      = DVBFE_MOD_QPSK;
1704                 params->fec             = DVBFE_FEC_5_6;
1705                 break;
1706         case STB0899_QPSK_89:
1707                 params->modulation      = DVBFE_MOD_QPSK;
1708                 params->fec             = DVBFE_FEC_8_9;
1709                 break;
1710         case STB0899_QPSK_910:
1711                 params->modulation      = DVBFE_MOD_QPSK;
1712                 params->fec             = DVBFE_FEC_9_10;
1713                 break;
1714         case STB0899_8PSK_35:
1715                 params->modulation      = DVBFE_MOD_8PSK;
1716                 params->fec             = DVBFE_FEC_3_5;
1717                 break;
1718         case STB0899_8PSK_23:
1719                 params->modulation      = DVBFE_MOD_8PSK;
1720                 params->fec             = DVBFE_FEC_2_3;
1721                 break;
1722         case STB0899_8PSK_34:
1723                 params->modulation      = DVBFE_MOD_8PSK;
1724                 params->fec             = DVBFE_FEC_3_4;
1725                 break;
1726         case STB0899_8PSK_56:
1727                 params->modulation      = DVBFE_MOD_8PSK;
1728                 params->fec             = DVBFE_FEC_5_6;
1729                 break;
1730         case STB0899_8PSK_89:
1731                 params->modulation      = DVBFE_MOD_8PSK;
1732                 params->fec             = DVBFE_FEC_8_9;
1733                 break;
1734         case STB0899_8PSK_910:
1735                 params->modulation      = DVBFE_MOD_8PSK;
1736                 params->fec             = DVBFE_FEC_9_10;
1737                 break;
1738         case STB0899_16APSK_23:
1739                 params->modulation      = DVBFE_MOD_16APSK;
1740                 params->fec             = DVBFE_FEC_2_3;
1741                 break;
1742         case STB0899_16APSK_34:
1743                 params->modulation      = DVBFE_MOD_16APSK;
1744                 params->fec             = DVBFE_FEC_3_4;
1745                 break;
1746         case STB0899_16APSK_45:
1747                 params->modulation      = DVBFE_MOD_16APSK;
1748                 params->fec             = DVBFE_FEC_4_5;
1749                 break;
1750         case STB0899_16APSK_56:
1751                 params->modulation      = DVBFE_MOD_16APSK;
1752                 params->fec             = DVBFE_FEC_5_6;
1753                 break;
1754         case STB0899_16APSK_89:
1755                 params->modulation      = DVBFE_MOD_16APSK;
1756                 params->fec             = DVBFE_FEC_8_9;
1757                 break;
1758         case STB0899_16APSK_910:
1759                 params->modulation      = DVBFE_MOD_16APSK;
1760                 params->fec             = DVBFE_FEC_9_10;
1761                 break;
1762         case STB0899_32APSK_34:
1763                 params->modulation      = DVBFE_MOD_32APSK;
1764                 params->fec             = DVBFE_FEC_3_4;
1765                 break;
1766         case STB0899_32APSK_45:
1767                 params->modulation      = DVBFE_MOD_32APSK;
1768                 params->fec             = DVBFE_FEC_4_5;
1769                 break;
1770         case STB0899_32APSK_56:
1771                 params->modulation      = DVBFE_MOD_32APSK;
1772                 params->fec             = DVBFE_FEC_5_6;
1773                 break;
1774         case STB0899_32APSK_89:
1775                 params->modulation      = DVBFE_MOD_32APSK;
1776                 params->fec             = DVBFE_FEC_8_9;
1777                 break;
1778         case STB0899_32APSK_910:
1779                 params->modulation      = DVBFE_MOD_32APSK;
1780                 params->fec             = DVBFE_FEC_9_10;
1781                 break;
1782         default:
1783                 return -EINVAL;
1784         }
1785
1786         return 0;
1787 }
1788
1789 /*
1790  * stb0899_track
1791  * periodically check the signal level against a specified
1792  * threshold level and perform derotator centering.
1793  * called once we have a lock from a succesful search
1794  * event.
1795  *
1796  * Will be called periodically called to maintain the
1797  * lock.
1798  *
1799  * Will be used to get parameters as well as info from
1800  * the decoded baseband header
1801  *
1802  * Once a new lock has established, the internal state
1803  * frequency (internal->freq) is updated
1804  */
1805 static int stb0899_track(struct dvb_frontend *fe, struct dvbfe_params *params, int *delay)
1806 {
1807         u32 lock_lost;
1808
1809         struct stb0899_state *state             = fe->demodulator_priv;
1810         struct stb0899_internal *internal       = &state->internal;
1811
1812         lock_lost = STB0899_READ_S2REG(STB0899_S2DEMOD, LOCK_LOST);
1813         dprintk(verbose, FE_DEBUG, 1, "Lock Lost=[0x%02x]\n", lock_lost);
1814         if (STB0899_GETFIELD(LOCK_LOST, lock_lost))
1815                 dprintk(verbose, FE_ERROR, 1, "Demodulator LOST LOCK !\n");
1816
1817         *delay = HZ/10;
1818
1819         return 0;
1820 }
1821
1822 static int stb0899_get_params(struct dvb_frontend *fe, struct dvbfe_params *params)
1823 {
1824         struct stb0899_state *state             = fe->demodulator_priv;
1825         struct stb0899_internal *internal       = &state->internal;
1826
1827         params->frequency                       = internal->freq;
1828         params->inversion                       = internal->inversion;
1829         params->delivery                        = state->delsys;
1830         switch (state->delsys) {
1831         case DVBFE_DELSYS_DVBS:
1832                 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S params");
1833                 params->delsys.dvbs.symbol_rate         = internal->srate;
1834                 params->delsys.dvbs.modulation          = DVBFE_MOD_QPSK;
1835                 break;
1836         case DVBFE_DELSYS_DSS:
1837                 dprintk(verbose, FE_DEBUG, 1, "Get DSS params");
1838                 params->delsys.dss.symbol_rate          = internal->srate;
1839                 params->delsys.dss.modulation           = DVBFE_MOD_QPSK;
1840
1841                 break;
1842         case DVBFE_DELSYS_DVBS2:
1843                 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S2 params");
1844                 params->delsys.dvbs2.symbol_rate        = internal->srate;
1845                 break;
1846         default:
1847                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1848                 return -EINVAL;
1849         }
1850
1851         return 0;
1852 }
1853
1854 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1855 {
1856         return DVBFE_ALGO_CUSTOM;
1857 }
1858
1859 static struct dvb_frontend_ops stb0899_ops = {
1860
1861         .info = {
1862                 .name                   = "STB0899 Multistandard",
1863         },
1864
1865         .release                        = stb0899_release,
1866         .init                           = stb0899_init,
1867         .sleep                          = stb0899_sleep,
1868 //      .wakeup                         = stb0899_wakeup,
1869
1870         .i2c_gate_ctrl                  = stb0899_i2c_gate_ctrl,
1871         .get_info                       = stb0899_get_info,
1872         .get_delsys                     = stb0899_get_delsys,
1873
1874         .get_frontend_algo              = stb0899_frontend_algo,
1875         .search                         = stb0899_search,
1876         .track                          = stb0899_track,
1877         .get_params                     = stb0899_get_params,
1878
1879         .read_status                    = stb0899_read_status,
1880         .read_snr                       = stb0899_read_snr,
1881         .read_signal_strength           = stb0899_read_signal_strength,
1882         .read_status                    = stb0899_read_status,
1883         .read_ber                       = stb0899_read_ber,
1884
1885         .set_voltage                    = stb0899_set_voltage,
1886         .set_tone                       = stb0899_set_tone,
1887
1888         .diseqc_send_master_cmd         = stb0899_send_diseqc_msg,
1889         .diseqc_recv_slave_reply        = stb0899_recv_slave_reply,
1890         .diseqc_send_burst              = stb0899_send_diseqc_burst,
1891 };
1892
1893 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1894 {
1895         struct stb0899_state *state = NULL;
1896
1897         state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1898         if (state == NULL)
1899                 goto error;
1900
1901         state->verbose                          = verbose;
1902         state->config                           = config;
1903         state->i2c                              = i2c;
1904         state->frontend.ops                     = stb0899_ops;
1905         state->frontend.demodulator_priv        = state;
1906
1907         stb0899_wakeup(&state->frontend);
1908         if (stb0899_get_dev_id(state) == -ENODEV) {
1909                 printk("%s: Exiting .. !\n", __func__);
1910                 goto error;
1911         }
1912
1913         printk("%s: Attaching STB0899 \n", __func__);
1914         return &state->frontend;
1915
1916 error:
1917         kfree(state);
1918         return NULL;
1919 }
1920 EXPORT_SYMBOL(stb0899_attach);
1921 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1922 MODULE_AUTHOR("Manu Abraham");
1923 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1924 MODULE_LICENSE("GPL");