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         return (unsigned int)buf;
 255 }
 256
 257 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
 258 {
 259         int result;
 260
 261         result = _stb0899_read_reg(state, reg);
 262         /*
 263          * Bug ID 9:
 264          * access to 0xf2xx/0xf6xx
 265          * must be followed by read from 0xf2ff/0xf6ff.
 266          */
 267         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 268             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 269                 _stb0899_read_reg(state, (reg | 0x00ff));
 270
 271         return result;
 272 }
 273
 274 u32 _stb0899_read_s2reg(struct stb0899_state *state,
 275                         u32 stb0899_i2cdev,
 276                         u32 stb0899_base_addr,
 277                         u16 stb0899_reg_offset)
 278 {
 279         int status;
 280         u32 data;
 281         u8 buf[7] = { 0 };
 282         u16 tmpaddr;
 283
 284         u8 buf_0[] = {
 285                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 286                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 287                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 288                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 289                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 290                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 291         };
 292         u8 buf_1[] = {
 293                 0x00,   /* 0xf3 Reg Offset      */
 294                 0x00,   /* 0x44 Reg Offset      */
 295         };
 296
 297         struct i2c_msg msg_0 = {
 298                 .addr   = state->config->demod_address,
 299                 .flags  = 0,
 300                 .buf    = buf_0,
 301                 .len    = 6
 302         };
 303
 304         struct i2c_msg msg_1 = {
 305                 .addr   = state->config->demod_address,
 306                 .flags  = 0,
 307                 .buf    = buf_1,
 308                 .len    = 2
 309         };
 310
 311         struct i2c_msg msg_r = {
 312                 .addr   = state->config->demod_address,
 313                 .flags  = I2C_M_RD,
 314                 .buf    = buf,
 315                 .len    = 4
 316         };
 317
 318         tmpaddr = stb0899_reg_offset & 0xff00;
 319         if (!(stb0899_reg_offset & 0x8))
 320                 tmpaddr = stb0899_reg_offset | 0x20;
 321
 322         buf_1[0] = GETBYTE(tmpaddr, BYTE1);
 323         buf_1[1] = GETBYTE(tmpaddr, BYTE0);
 324
 325         status = i2c_transfer(state->i2c, &msg_0, 1);
 326         if (status < 1) {
 327                 if (status != -ERESTARTSYS)
 328                         printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 329                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 330
 331                 goto err;
 332         }
 333
 334         /* Dummy        */
 335         status = i2c_transfer(state->i2c, &msg_1, 1);
 336         if (status < 1)
 337                 goto err;
 338
 339         status = i2c_transfer(state->i2c, &msg_r, 1);
 340         if (status < 1)
 341                 goto err;
 342
 343         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 344         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 345
 346         /* Actual       */
 347         status = i2c_transfer(state->i2c, &msg_1, 1);
 348         if (status < 1) {
 349                 if (status != -ERESTARTSYS)
 350                         printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 351                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 352                 goto err;
 353         }
 354
 355         status = i2c_transfer(state->i2c, &msg_r, 1);
 356         if (status < 1) {
 357                 if (status != -ERESTARTSYS)
 358                         printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 359                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 360                 return status < 0 ? status : -EREMOTEIO;
 361         }
 362
 363         data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
 364         if (unlikely(state->verbose >= FE_DEBUGREG))
 365                 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 366                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
 367
 368         return data;
 369
 370 err:
 371         return status < 0 ? status : -EREMOTEIO;
 372 }
 373
 374 int stb0899_write_s2reg(struct stb0899_state *state,
 375                         u32 stb0899_i2cdev,
 376                         u32 stb0899_base_addr,
 377                         u16 stb0899_reg_offset,
 378                         u32 stb0899_data)
 379 {
 380         int status;
 381
 382         /* Base Address Setup   */
 383         u8 buf_0[] = {
 384                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 385                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 386                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 387                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 388                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 389                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 390         };
 391         u8 buf_1[] = {
 392                 0x00,   /* 0xf3 Reg Offset      */
 393                 0x00,   /* 0x44 Reg Offset      */
 394                 0x00,   /* data                 */
 395                 0x00,   /* data                 */
 396                 0x00,   /* data                 */
 397                 0x00,   /* data                 */
 398         };
 399
 400         struct i2c_msg msg_0 = {
 401                 .addr   = state->config->demod_address,
 402                 .flags  = 0,
 403                 .buf    = buf_0,
 404                 .len    = 6
 405         };
 406
 407         struct i2c_msg msg_1 = {
 408                 .addr   = state->config->demod_address,
 409                 .flags  = 0,
 410                 .buf    = buf_1,
 411                 .len    = 6
 412         };
 413
 414         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 415         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 416         buf_1[2] = GETBYTE(stb0899_data, BYTE0);
 417         buf_1[3] = GETBYTE(stb0899_data, BYTE1);
 418         buf_1[4] = GETBYTE(stb0899_data, BYTE2);
 419         buf_1[5] = GETBYTE(stb0899_data, BYTE3);
 420
 421         if (unlikely(state->verbose >= FE_DEBUGREG))
 422                 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 423                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
 424
 425         status = i2c_transfer(state->i2c, &msg_0, 1);
 426         if (unlikely(status < 1)) {
 427                 if (status != -ERESTARTSYS)
 428                         printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 429                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 430                 goto err;
 431         }
 432         status = i2c_transfer(state->i2c, &msg_1, 1);
 433         if (unlikely(status < 1)) {
 434                 if (status != -ERESTARTSYS)
 435                         printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 436                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 437
 438                 return status < 0 ? status : -EREMOTEIO;
 439         }
 440
 441         return 0;
 442
 443 err:
 444         return status < 0 ? status : -EREMOTEIO;
 445 }
 446
 447 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, size_t count)
 448 {
 449         int status;
 450
 451         u8 b0[] = { reg >> 8, reg & 0xff };
 452
 453         struct i2c_msg msg[] = {
 454                 {
 455                         .addr   = state->config->demod_address,
 456                         .flags  = 0,
 457                         .buf    = b0,
 458                         .len    = 2
 459                 },{
 460                         .addr   = state->config->demod_address,
 461                         .flags  = I2C_M_RD,
 462                         .buf    = buf,
 463                         .len    = count
 464                 }
 465         };
 466
 467         status = i2c_transfer(state->i2c, msg, 2);
 468         if (status != 2) {
 469                 if (status != -ERESTARTSYS)
 470                         printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
 471                                __func__, reg, count, status);
 472                 goto err;
 473         }
 474         /*
 475          * Bug ID 9:
 476          * access to 0xf2xx/0xf6xx
 477          * must be followed by read from 0xf2ff/0xf6ff.
 478          */
 479         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 480             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 481                 _stb0899_read_reg(state, (reg | 0x00ff));
 482
 483         if (unlikely(state->verbose >= FE_DEBUGREG)) {
 484                 int i;
 485
 486                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 487                 for (i = 0; i < count; i++) {
 488                         printk(" %02x", buf[i]);
 489                 }
 490                 printk("\n");
 491         }
 492
 493         return 0;
 494 err:
 495         return status < 0 ? status : -EREMOTEIO;
 496 }
 497
 498 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, size_t count)
 499 {
 500         int ret;
 501         u8 buf[2 + count];
 502         struct i2c_msg i2c_msg = {
 503                 .addr   = state->config->demod_address,
 504                 .flags  = 0,
 505                 .buf    = buf,
 506                 .len    = 2 + count
 507         };
 508
 509         buf[0] = reg >> 8;
 510         buf[1] = reg & 0xff;
 511         memcpy(&buf[2], data, count);
 512
 513         if (unlikely(state->verbose >= FE_DEBUGREG)) {
 514                 int i;
 515
 516                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 517                 for (i = 0; i < count; i++)
 518                         printk(" %02x", data[i]);
 519                 printk("\n");
 520         }
 521         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 522
 523         /*
 524          * Bug ID 9:
 525          * access to 0xf2xx/0xf6xx
 526          * must be followed by read from 0xf2ff/0xf6ff.
 527          */
 528         if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 529                 stb0899_read_reg(state, (reg | 0x00ff));
 530
 531         if (ret != 1) {
 532                 if (ret != -ERESTARTSYS)
 533                         dprintk(verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 534                                 reg, data[0], count, ret);
 535                 return ret < 0 ? ret : -EREMOTEIO;
 536         }
 537
 538         return 0;
 539 }
 540
 541 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
 542 {
 543         return stb0899_write_regs(state, reg, &data, 1);
 544 }
 545
 546 /*
 547  * stb0899_get_mclk
 548  * Get STB0899 master clock frequency
 549  * ExtClk: external clock frequency (Hz)
 550  */
 551 static u32 stb0899_get_mclk(struct stb0899_state *state)
 552 {
 553         u32 mclk = 90000000, div = 0;
 554
 555         div = stb0899_read_reg(state, STB0899_NCOARSE);
 556         mclk = (div + 1) * state->config->xtal_freq / 6;
 557         dprintk(verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
 558
 559         return mclk;
 560 }
 561
 562 /*
 563  * stb0899_set_mclk
 564  * Set STB0899 master Clock frequency
 565  * Mclk: demodulator master clock
 566  * ExtClk: external clock frequency (Hz)
 567  */
 568 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
 569 {
 570         struct stb0899_internal *internal = &state->internal;
 571         u8 mdiv = 0;
 572
 573         dprintk(verbose, FE_DEBUG, 1, "state->config=%p", state->config);
 574         mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
 575         dprintk(verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
 576
 577         stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
 578         internal->master_clk = stb0899_get_mclk(state);
 579
 580         dprintk(verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
 581 }
 582
 583 static void stb0899_release(struct dvb_frontend *fe)
 584 {
 585         struct stb0899_state *state = fe->demodulator_priv;
 586
 587         dprintk(verbose, FE_DEBUG, 1, "Release Frontend");
 588         kfree(state);
 589 }
 590
 591 /*
 592  * stb0899_get_alpha
 593  * return: rolloff
 594  */
 595 static int stb0899_get_alpha(struct stb0899_state *state)
 596 {
 597         u8 mode_coeff;
 598
 599         mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
 600
 601         if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
 602                 return 20;
 603         else
 604                 return 35;
 605 }
 606
 607 /*
 608  * stb0899_init_calc
 609  */
 610 static void stb0899_init_calc(struct stb0899_state *state)
 611 {
 612         struct stb0899_internal *internal = &state->internal;
 613         int master_clk;
 614         u8 agc[1];
 615         u8 agc1cn;
 616         u32 reg;
 617
 618         /* Read registers (in burst mode)       */
 619         agc1cn = stb0899_read_reg(state, STB0899_AGC1CN);
 620         stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O   */
 621
 622         /* Initial calculations */
 623         master_clk                      = stb0899_get_mclk(state);
 624         internal->t_agc1                = 0;
 625         internal->t_agc2                = 0;
 626         internal->master_clk            = master_clk;
 627         internal->mclk                  = master_clk / 65536L;
 628         internal->rolloff               = stb0899_get_alpha(state);
 629
 630         /* DVBS2 Initial calculations   */
 631         /* Set AGC value to the middle  */
 632         internal->agc_gain              = 8154;
 633         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
 634         STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
 635         stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
 636
 637         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
 638         internal->rrc_alpha             = STB0899_GETFIELD(RRC_ALPHA, reg);
 639
 640         internal->center_freq           = 0;
 641         internal->av_frame_coarse       = 10;
 642         internal->av_frame_fine         = 20;
 643         internal->step_size             = 2;
 644 /*
 645         if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
 646                 pParams->IQLocked = 0;
 647         else
 648                 pParams->IQLocked = 1;
 649 */
 650 }
 651
 652 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
 653 {
 654         u8 reg = 0;
 655         unsigned long start = jiffies;
 656
 657         while (1) {
 658                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 659                 if (!STB0899_GETFIELD(FIFOFULL, reg))
 660                         break;
 661                 if ((jiffies - start) > timeout) {
 662                         dprintk(verbose, FE_ERROR, 1, "timed out !!");
 663                         return -ETIMEDOUT;
 664                 }
 665         }
 666
 667         return 0;
 668 }
 669
 670 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
 671 {
 672         struct stb0899_state *state = fe->demodulator_priv;
 673         u8 reg, i;
 674
 675         if (cmd->msg_len > 8)
 676                 return -EINVAL;
 677
 678         /* enable FIFO precharge        */
 679         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 680         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
 681         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 682         for (i = 0; i < cmd->msg_len; i++) {
 683                 /* wait for FIFO empty  */
 684                 if (stb0899_wait_diseqc_fifo_empty(state, 10) < 0)
 685                         return -ETIMEDOUT;
 686
 687                 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
 688         }
 689         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 690         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
 691         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 692
 693         return 0;
 694 }
 695
 696 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
 697 {
 698         u8 reg = 0;
 699         unsigned long start = jiffies;
 700
 701         while (!STB0899_GETFIELD(RXEND, reg)) {
 702                 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 703                 if (jiffies - start > timeout) {
 704                         dprintk(verbose, FE_ERROR, 1, "timed out!!");
 705                         return -ETIMEDOUT;
 706                 }
 707                 msleep(10);
 708         }
 709
 710         return 0;
 711 }
 712
 713 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
 714 {
 715         struct stb0899_state *state = fe->demodulator_priv;
 716         u8 reg, length = 0, i;
 717         int result;
 718
 719         if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
 720                 return -ETIMEDOUT;
 721
 722         reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 723         if (STB0899_GETFIELD(RXEND, reg)) {
 724
 725                 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
 726                 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
 727
 728                 if (length > sizeof (reply->msg)) {
 729                         result = -EOVERFLOW;
 730                         goto exit;
 731                 }
 732                 reply->msg_len = length;
 733
 734                 /* extract data */
 735                 for (i = 0; i < length; i++)
 736                         reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
 737         }
 738
 739         return 0;
 740 exit:
 741
 742         return result;
 743 }
 744
 745 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
 746 {
 747         u8 reg = 0;
 748         unsigned long start = jiffies;
 749
 750         while (!STB0899_GETFIELD(TXIDLE, reg)) {
 751                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 752                 if (jiffies - start > timeout) {
 753                         dprintk(verbose, FE_ERROR, 1, "timed out!!");
 754                         return -ETIMEDOUT;
 755                 }
 756                 msleep(10);
 757         }
 758         return 0;
 759 }
 760
 761 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst)
 762 {
 763         struct stb0899_state *state = fe->demodulator_priv;
 764         u8 reg, old_state;
 765
 766         /* wait for diseqc idle */
 767         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 768                 return -ETIMEDOUT;
 769
 770         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 771         old_state = reg;
 772         /* set to burst mode    */
 773         STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x02);
 774         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
 775         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 776         switch (burst) {
 777         case SEC_MINI_A:
 778                 /* unmodulated  */
 779                 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
 780                 break;
 781         case SEC_MINI_B:
 782                 /* modulated    */
 783                 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
 784                 break;
 785         }
 786         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 787         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
 788         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 789         /* wait for diseqc idle */
 790         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 791                 return -ETIMEDOUT;
 792
 793         /* restore state        */
 794         stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
 795
 796         return 0;
 797 }
 798
 799
 800 static int stb0899_sleep(struct dvb_frontend *fe)
 801 {
 802         struct stb0899_state *state = fe->demodulator_priv;
 803         u8 reg;
 804
 805         dprintk(verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
 806         return 0;
 807 }
 808
 809 static int stb0899_wakeup(struct dvb_frontend *fe)
 810 {
 811         int rc;
 812         struct stb0899_state *state = fe->demodulator_priv;
 813
 814         if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
 815                 return rc;
 816         /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
 817         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
 818                 return rc;
 819         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
 820                 return rc;
 821
 822         return 0;
 823 }
 824
 825 static int stb0899_init(struct dvb_frontend *fe)
 826 {
 827         int i;
 828         struct stb0899_state *state = fe->demodulator_priv;
 829         struct stb0899_config *config = state->config;
 830
 831         dprintk(verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
 832 //      mutex_init(&state->search_lock);
 833
 834         /* init device          */
 835         dprintk(verbose, FE_DEBUG, 1, "init device");
 836         for (i = 0; config->init_dev[i].address != 0xffff; i++)
 837                 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
 838
 839         dprintk(verbose, FE_DEBUG, 1, "init S2 demod");
 840         /* init S2 demod        */
 841         for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
 842                 stb0899_write_s2reg(state, STB0899_S2DEMOD,
 843                                     config->init_s2_demod[i].base_address,
 844                                     config->init_s2_demod[i].offset,
 845                                     config->init_s2_demod[i].data);
 846
 847         dprintk(verbose, FE_DEBUG, 1, "init S1 demod");
 848         /* init S1 demod        */
 849         for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
 850                 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
 851
 852         dprintk(verbose, FE_DEBUG, 1, "init S2 FEC");
 853         /* init S2 fec          */
 854         for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
 855                 stb0899_write_s2reg(state, STB0899_S2FEC,
 856                                     config->init_s2_fec[i].base_address,
 857                                     config->init_s2_fec[i].offset,
 858                                     config->init_s2_fec[i].data);
 859
 860         dprintk(verbose, FE_DEBUG, 1, "init TST");
 861         /* init test            */
 862         for (i = 0; config->init_tst[i].address != 0xffff; i++)
 863                 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
 864
 865         stb0899_init_calc(state);
 866 //      stb0899_diseqc_init(state);
 867
 868         return 0;
 869 }
 870
 871 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
 872 {
 873         int res = 0;
 874         int min = 0, med;
 875
 876         if (val < tab[min].read)
 877                 res = tab[min].real;
 878         else if (val >= tab[max].read)
 879                 res = tab[max].real;
 880         else {
 881                 while ((max - min) > 1) {
 882                         med = (max + min) / 2;
 883                         if (val >= tab[min].read && val < tab[med].read)
 884                                 max = med;
 885                         else
 886                                 min = med;
 887                 }
 888                 res = ((val - tab[min].read) *
 889                        (tab[max].real - tab[min].real) /
 890                        (tab[max].read - tab[min].read)) +
 891                         tab[min].real;
 892         }
 893
 894         return res;
 895 }
 896
 897 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 898 {
 899         struct stb0899_state *state             = fe->demodulator_priv;
 900         struct stb0899_internal *internal       = &state->internal;
 901
 902         int val;
 903         u32 reg;
 904         switch (state->delsys) {
 905         case DVBFE_DELSYS_DVBS:
 906         case DVBFE_DELSYS_DSS:
 907                 if (internal->lock) {
 908                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
 909                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
 910
 911                                 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
 912                                 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
 913
 914                                 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
 915                                 *strength += 750;
 916                                 dprintk(verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
 917                                         val & 0xff, *strength);
 918                         }
 919                 }
 920                 break;
 921         case DVBFE_DELSYS_DVBS2:
 922                 if (internal->lock) {
 923                         reg = STB0899_READ_S2REG(STB0899_DEMOD, IF_AGC_GAIN);
 924                         val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
 925
 926                         *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
 927                         *strength += 750;
 928                         dprintk(verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
 929                                 val & 0x3fff, *strength);
 930                 }
 931                 break;
 932         default:
 933                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
 934                 break;
 935         }
 936
 937         return 0;
 938 }
 939
 940 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
 941 {
 942         struct stb0899_state *state             = fe->demodulator_priv;
 943         struct stb0899_internal *internal       = &state->internal;
 944
 945         unsigned int val, quant, quantn = -1, est, estn = -1;
 946         u8 buf[2];
 947         u32 reg;
 948
 949         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
 950         switch (state->delsys) {
 951         case DVBFE_DELSYS_DVBS:
 952         case DVBFE_DELSYS_DSS:
 953                 if (internal->lock) {
 954                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
 955
 956                                 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
 957                                 val = MAKEWORD16(buf[0], buf[1]);
 958
 959                                 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
 960                                 dprintk(verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
 961                                         buf[0], buf[1], val, *snr);
 962                         }
 963                 }
 964                 break;
 965         case DVBFE_DELSYS_DVBS2:
 966                 if (internal->lock) {
 967                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
 968                         quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
 969                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
 970                         est = STB0899_GETFIELD(ESN0_EST, reg);
 971                         if (est == 1)
 972                                 val = 301; /* C/N = 30.1 dB */
 973                         else if (est == 2)
 974                                 val = 270; /* C/N = 27.0 dB */
 975                         else {
 976                                 /* quantn = 100 * log(quant^2) */
 977                                 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
 978                                 /* estn = 100 * log(est) */
 979                                 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
 980                                 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
 981                                 val = (quantn - estn) / 10;
 982                         }
 983                         *snr = val;
 984                         dprintk(verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
 985                                 quant, quantn, est, estn, val);
 986                 }
 987                 break;
 988         default:
 989                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
 990                 break;
 991         }
 992
 993         return 0;
 994 }
 995
 996 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
 997 {
 998         struct stb0899_state *state             = fe->demodulator_priv;
 999         struct stb0899_internal *internal       = &state->internal;
1000         u8 reg;
1001         *status = 0;
1002
1003         switch (state->delsys) {
1004         case DVBFE_DELSYS_DVBS:
1005         case DVBFE_DELSYS_DSS:
1006                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1007                 if (internal->lock) {
1008                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
1009                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1010                                 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1011                                 *status |= FE_HAS_CARRIER | FE_HAS_LOCK;
1012
1013                                 reg = stb0899_read_reg(state, STB0899_PLPARM);
1014                                 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1015                                         dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1016                                         *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1017                                 }
1018                         }
1019                 }
1020                 break;
1021         case DVBFE_DELSYS_DVBS2:
1022                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1023                 if (internal->lock) {
1024                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1025                         if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1026                                 *status |= FE_HAS_CARRIER;
1027                                 dprintk(state->verbose, FE_DEBUG, 1,
1028                                         "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1029
1030                                 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1031                                 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1032                                         *status |= FE_HAS_LOCK;
1033                                         dprintk(state->verbose, FE_DEBUG, 1,
1034                                                 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1035
1036                                 }
1037                                 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1038                                         *status |= FE_HAS_VITERBI;
1039                                         dprintk(state->verbose, FE_DEBUG, 1,
1040                                                 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1041                                 }
1042                                 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1043                                         *status |= FE_HAS_SYNC;
1044                                         dprintk(state->verbose, FE_DEBUG, 1,
1045                                                 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1046                                 }
1047                         }
1048                 }
1049                 break;
1050         default:
1051                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1052                 break;
1053         }
1054         return 0;
1055 }
1056
1057 /*
1058  * stb0899_get_error
1059  * viterbi error for DVB-S/DSS
1060  * packet error for DVB-S2
1061  * Bit Error Rate or Packet Error Rate * 10 ^ 7
1062  */
1063 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1064 {
1065         struct stb0899_state *state             = fe->demodulator_priv;
1066         struct stb0899_internal *internal       = &state->internal;
1067
1068         u8  lsb, msb;
1069         u32 i;
1070
1071         *ber = 0;
1072
1073         switch (state->delsys) {
1074         case DVBFE_DELSYS_DVBS:
1075         case DVBFE_DELSYS_DSS:
1076                 if (internal->lock) {
1077                         /* average 5 BER values */
1078                         for (i = 0; i < 5; i++) {
1079                                 msleep(100);
1080                                 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1081                                 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1082                                 *ber += MAKEWORD16(msb, lsb);
1083                         }
1084                         *ber /= 5;
1085                         /* Viterbi Check        */
1086                         if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1087                                 /* Error Rate           */
1088                                 *ber *= 9766;
1089                                 /* ber = ber * 10 ^ 7   */
1090                                 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1091                                 *ber /= 8;
1092                         }
1093                 }
1094                 break;
1095         case DVBFE_DELSYS_DVBS2:
1096                 if (internal->lock) {
1097                         /* Average 5 PER values */
1098                         for (i = 0; i < 5; i++) {
1099                                 msleep(100);
1100                                 lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1101                                 msb = stb0899_read_reg(state, STB0899_ECNT1M);
1102                                 *ber += MAKEWORD16(msb, lsb);
1103                         }
1104                         /* ber = ber * 10 ^ 7   */
1105                         *ber *= 10000000;
1106                         *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1107                 }
1108                 break;
1109         default:
1110                 dprintk(verbose, FE_DEBUG, 1, "Unsupported delivery system");
1111         }
1112
1113         return 0;
1114 }
1115
1116 static int stb0899_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
1117 {
1118         struct stb0899_state *state = fe->demodulator_priv;
1119
1120         switch (voltage) {
1121         case SEC_VOLTAGE_13:
1122                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1123                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1124                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1125                 break;
1126         case SEC_VOLTAGE_18:
1127                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1128                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1129                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1130                 break;
1131         case SEC_VOLTAGE_OFF:
1132                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1133                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1134                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1135                 break;
1136         default:
1137                 return -EINVAL;
1138         }
1139
1140         return 0;
1141 }
1142
1143 static int stb0899_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
1144 {
1145         struct stb0899_state *state = fe->demodulator_priv;
1146         struct stb0899_internal *internal = &state->internal;
1147
1148         u8 div, reg;
1149
1150         /* wait for diseqc idle */
1151         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1152                 return -ETIMEDOUT;
1153
1154         switch (tone) {
1155         case SEC_TONE_ON:
1156                 div = (internal->master_clk / 100) / 5632;
1157                 div = (div + 5) / 10;
1158                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1159                 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1160                 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1161                 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1162                 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1163                 break;
1164         case SEC_TONE_OFF:
1165                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1166                 break;
1167         default:
1168                 break;
1169         }
1170         return 0;
1171 }
1172
1173 static int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1174 {
1175         int i2c_stat;
1176         struct stb0899_state *state = fe->demodulator_priv;
1177
1178         i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1179         if (i2c_stat < 0)
1180                 goto err;
1181
1182         if (enable) {
1183                 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1184                 i2c_stat |=  STB0899_I2CTON;
1185                 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1186                         goto err;
1187         }
1188         return 0;
1189 err:
1190         dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater enable failed");
1191         return -EREMOTEIO;
1192 }
1193
1194
1195 static inline void CONVERT32(u32 x, char *str)
1196 {
1197         *str++  = (x >> 24) & 0xff;
1198         *str++  = (x >> 16) & 0xff;
1199         *str++  = (x >>  8) & 0xff;
1200         *str++  = (x >>  0) & 0xff;
1201         *str    = '\0';
1202 }
1203
1204 int stb0899_get_dev_id(struct stb0899_state *state)
1205 {
1206         u8 chip_id, release;
1207         u16 id;
1208         u32 demod_ver = 0, fec_ver = 0;
1209         char demod_str[4] = { 0 };
1210         char fec_str[4] = { 0 };
1211
1212         id = stb0899_read_reg(state, STB0899_DEV_ID);
1213         dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1214         chip_id = STB0899_GETFIELD(CHIP_ID, id);
1215         release = STB0899_GETFIELD(CHIP_REL, id);
1216
1217         dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1218                 chip_id, release);
1219
1220         CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1221
1222         demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1223         dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1224         CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1225         fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1226         if (! (chip_id > 0)) {
1227                 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1228
1229                 return -ENODEV;
1230         }
1231         dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1232
1233         return 0;
1234 }
1235
1236 static const struct dvbfe_info dvbs_info        = {
1237         .name                                   = "STB0899 DVB-S",
1238         .delivery                               = DVBFE_DELSYS_DVBS,
1239         .delsys                                 = {
1240                 .dvbs.modulation                = DVBFE_MOD_QPSK,
1241                 .dvbs.fec                       = DVBFE_FEC_1_2 | DVBFE_FEC_2_3 |
1242                                                   DVBFE_FEC_3_4 | DVBFE_FEC_5_6 |
1243                                                   DVBFE_FEC_6_7
1244         },
1245
1246         .frequency_min                          = 950000,
1247         .frequency_max                          = 2150000,
1248         .frequency_step                         = 0,
1249         .symbol_rate_min                        = 1000000,
1250         .symbol_rate_max                        = 45000000,
1251         .symbol_rate_tolerance                  = 0
1252 };
1253
1254 static const struct dvbfe_info dss_info         = {
1255         .name                                   = "STB0899 DSS",
1256         .delivery                               = DVBFE_DELSYS_DSS,
1257         .delsys                                 = {
1258                 .dss.modulation                 = DVBFE_MOD_BPSK | DVBFE_MOD_QPSK,
1259                 .dss.fec                        = DVBFE_FEC_1_2  | DVBFE_FEC_2_3 |
1260                                                   DVBFE_FEC_3_4  | DVBFE_FEC_5_6 |
1261                                                   DVBFE_FEC_6_7
1262         },
1263
1264         .frequency_min                          = 950000,
1265         .frequency_max                          = 2150000,
1266         .frequency_step                         = 0,
1267         .symbol_rate_min                        = 1000000,
1268         .symbol_rate_max                        = 45000000,
1269         .symbol_rate_tolerance                  = 0
1270 };
1271
1272 static const struct dvbfe_info dvbs2_info       = {
1273         .name                                   = "STB0899 DVB-S2",
1274         .delivery                               = DVBFE_DELSYS_DVBS2,
1275         .delsys                                 = {
1276                 .dvbs2.modulation               = DVBFE_MOD_QPSK   | DVBFE_MOD_8PSK |
1277                                                   DVBFE_MOD_16APSK | DVBFE_MOD_32APSK,
1278
1279                 .dvbs2.fec                      = DVBFE_FEC_1_4 | DVBFE_FEC_1_3 |
1280                                                   DVBFE_FEC_2_5 | DVBFE_FEC_1_2 |
1281                                                   DVBFE_FEC_3_5 | DVBFE_FEC_2_3 |
1282                                                   DVBFE_FEC_3_4 | DVBFE_FEC_4_5 |
1283                                                   DVBFE_FEC_5_6 | DVBFE_FEC_8_9 |
1284                                                   DVBFE_FEC_9_10,
1285         },
1286
1287         .frequency_min          = 950000,
1288         .frequency_max          = 2150000,
1289         .frequency_step         = 0,
1290         .symbol_rate_min        = 1000000,
1291         .symbol_rate_max        = 45000000,
1292         .symbol_rate_tolerance  = 0
1293 };
1294
1295 static int stb0899_get_info(struct dvb_frontend *fe, struct dvbfe_info *fe_info)
1296 {
1297         struct stb0899_state *state = fe->demodulator_priv;
1298
1299         dprintk(verbose, FE_DEBUG, 1, "Get Info");
1300
1301         state->delsys = fe_info->delivery;
1302         switch (state->delsys) {
1303         case DVBFE_DELSYS_DVBS:
1304                 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S info");
1305                 memcpy(fe_info, &dvbs_info, sizeof (struct dvbfe_info));
1306                 break;
1307         case DVBFE_DELSYS_DSS:
1308                 dprintk(verbose, FE_ERROR, 1, "Querying DSS info");
1309                 memcpy(fe_info, &dss_info, sizeof (struct dvbfe_info));
1310                 break;
1311         case DVBFE_DELSYS_DVBS2:
1312                 dprintk(verbose, FE_ERROR, 1, "Querying DVB-S2 info");
1313                 memcpy(fe_info, &dvbs2_info, sizeof (struct dvbfe_info));
1314                 break;
1315         default:
1316                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1317                 return -EINVAL;
1318         }
1319         dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1320
1321         return 0;
1322 }
1323
1324 static int stb0899_get_delsys(struct dvb_frontend *fe, enum dvbfe_delsys *fe_delsys)
1325 {
1326         *fe_delsys = DVBFE_DELSYS_DVBS | DVBFE_DELSYS_DSS | DVBFE_DELSYS_DVBS2;
1327
1328         return 0;
1329 }
1330
1331 void stb0899_set_delsys(struct stb0899_state *state)
1332 {
1333         u8 reg;
1334         u8 stop_clk[2];
1335
1336         stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1337         stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1338
1339         switch (state->delsys) {
1340         case DVBFE_DELSYS_DVBS:
1341                 dprintk(verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1342                 /* FECM/Viterbi ON      */
1343                 reg = stb0899_read_reg(state, STB0899_FECM);
1344                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1345                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1346                 stb0899_write_reg(state, STB0899_FECM, reg);
1347
1348                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1349                 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1350                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1351                 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1352
1353                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1354                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1355                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1356
1357                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1358                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1359                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1360
1361                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1362                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1363
1364                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1365                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 1);
1366
1367                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1368                 break;
1369         case DVBFE_DELSYS_DVBS2:
1370                 /* FECM/Viterbi OFF     */
1371                 reg = stb0899_read_reg(state, STB0899_FECM);
1372                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1373                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1374                 stb0899_write_reg(state, STB0899_FECM, reg);
1375
1376                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1377                 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1378                 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1379                 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1380
1381                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1382                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1383                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1384
1385                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1386                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1387                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1388
1389                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1390                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1391
1392                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1393                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1394
1395                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1396                 break;
1397         case DVBFE_DELSYS_DSS:
1398                 /* FECM/Viterbi ON      */
1399                 reg = stb0899_read_reg(state, STB0899_FECM);
1400                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1401                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1402                 stb0899_write_reg(state, STB0899_FECM, reg);
1403
1404                 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1405                 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1406                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1407
1408                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1409                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1410                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1411
1412                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1413                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1414                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1415
1416                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1417                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1418
1419                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1420
1421                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1422                 break;
1423         default:
1424                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1425                 break;
1426         }
1427         STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1428         stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1429 }
1430
1431 /*
1432  * stb0899_set_iterations
1433  * set the LDPC iteration scale function
1434  */
1435 static void stb0899_set_iterations(struct stb0899_state *state)
1436 {
1437         struct stb0899_internal *internal = &state->internal;
1438         struct stb0899_config *config = state->config;
1439
1440         s32 iter_scale;
1441         u32 reg;
1442
1443         iter_scale = 17 * (internal->master_clk / 1000);
1444         iter_scale += 410000;
1445         iter_scale /= (internal->srate / 1000000);
1446         iter_scale /= 1000;
1447
1448         if (iter_scale > config->ldpc_max_iter)
1449                 iter_scale = config->ldpc_max_iter;
1450
1451         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, MAX_ITER);
1452         STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1453         stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1454 }
1455
1456 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe, struct dvbfe_params *params)
1457 {
1458         struct stb0899_state *state = fe->demodulator_priv;
1459         struct stb0899_params *i_params = &state->params;
1460         struct stb0899_internal *internal = &state->internal;
1461
1462         u32 SearchRange, gain;
1463
1464         switch (state->delsys) {
1465         case DVBFE_DELSYS_DVBS:
1466                 dprintk(verbose, FE_ERROR, 1, "set DVB-S params");
1467                 i_params->freq  = params->frequency;
1468                 i_params->srate = params->delsys.dvbs.symbol_rate;
1469                 break;
1470         case DVBFE_DELSYS_DSS:
1471                 dprintk(verbose, FE_ERROR, 1, "set DSS params");
1472                 i_params->freq  = params->frequency;
1473                 i_params->srate = params->delsys.dss.symbol_rate;
1474                 break;
1475         case DVBFE_DELSYS_DVBS2:
1476                 dprintk(verbose, FE_ERROR, 1, "set DVB-S2 params");
1477                 i_params->freq  = params->frequency;
1478                 i_params->srate = params->delsys.dvbs2.symbol_rate;
1479                 break;
1480         default:
1481                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1482                 return -EINVAL;
1483         }
1484         dprintk(verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1485
1486         SearchRange = 3000000; /* Search Bandwidth (3 Mhz, was initially 10  Mhz)       */
1487 //      SearchRange = 10000000; /* Search Bandwidth (3 Mhz, was initially 10  Mhz)      */
1488         dprintk(verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1489         /* checking Search Range is meaningless for a fixed 3 Mhz                       */
1490         if (INRANGE(i_params->srate, 1000000, 45000000)) {
1491                 dprintk(verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1492                 stb0899_set_delsys(state);
1493
1494                 if (state->config->tuner_set_rfsiggain) {
1495                         if (internal->srate > 15000000)
1496                                 gain =  8;      /* 15Mb < srate < 45Mb, gain = 8dB      */
1497                         else if (internal->srate > 5000000)
1498                                 gain = 12;      /*  5Mb < srate < 15Mb, gain = 12dB     */
1499                         else
1500                                 gain = 14;      /*  1Mb < srate <  5Mb, gain = 14db     */
1501                         state->config->tuner_set_rfsiggain(fe, gain);
1502                 }
1503
1504                 if (i_params->srate <= 5000000)
1505                         stb0899_set_mclk(state, 76500000);
1506                 else
1507                         stb0899_set_mclk(state, 99000000);
1508
1509                 switch (state->delsys) {
1510                 case DVBFE_DELSYS_DVBS:
1511                 case DVBFE_DELSYS_DSS:
1512                         dprintk(verbose, FE_DEBUG, 1, "DVB-S delivery system");
1513                         internal->freq  = i_params->freq;
1514                         internal->srate = i_params->srate;
1515                         /*
1516                          * search = user search range +
1517                          *          500Khz +
1518                          *          2 * Tuner_step_size +
1519                          *          10% of the symbol rate
1520                          */
1521                         internal->srch_range    = SearchRange + 1500000 + (i_params->srate / 5);
1522                         internal->derot_percent = 30;
1523
1524                         /* What to do for tuners having no bandwidth setup ?    */
1525                         if (state->config->tuner_set_bandwidth)
1526                                 state->config->tuner_set_bandwidth(fe, (135 * (stb0899_carr_width(state) + SearchRange)) / 100);
1527                         if (state->config->tuner_get_bandwidth)
1528                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1529                         /* Set DVB-S1 AGC               */
1530                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1531
1532                         /* Run the search algorithm     */
1533                         dprintk(verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1534                         if (stb0899_dvbs_algo(state)    == RANGEOK) {
1535                                 internal->lock          = 1;
1536                                 dprintk(verbose, FE_DEBUG, 1,
1537                                         "-------------------------------------> DVB-S LOCK !");
1538
1539 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors     */
1540 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1541 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1542 //                              dprintk(verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1543 //                              dprintk(verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1544
1545                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1546                         } else {
1547                                 internal->lock          = 0;
1548
1549                                 return DVBFE_ALGO_SEARCH_FAILED;
1550                         }
1551                         break;
1552                 case DVBFE_DELSYS_DVBS2:
1553                         internal->freq                  = i_params->freq;
1554                         internal->srate                 = i_params->srate;
1555                         internal->srch_range            = SearchRange;
1556
1557                         if (state->config->tuner_set_bandwidth)
1558                                 state->config->tuner_set_bandwidth(fe, (135 * (stb0899_carr_width(state) + SearchRange)) / 100);
1559                         if (state->config->tuner_get_bandwidth)
1560                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1561
1562 //                      pParams->SpectralInv            = pSearch->IQ_Inversion;
1563
1564                         /* Set DVB-S2 AGC               */
1565                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1566
1567                         /* Set IterScale =f(MCLK,SYMB)  */
1568                         stb0899_set_iterations(state);
1569
1570                         /* Run the search algorithm     */
1571                         dprintk(verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1572                         if (stb0899_dvbs2_algo(state)   == DVBS2_FEC_LOCK) {
1573                                 internal->lock          = 1;
1574                                 dprintk(verbose, FE_DEBUG, 1,
1575                                         "-------------------------------------> DVB-S2 LOCK !");
1576
1577 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors      */
1578 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1579 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1580
1581                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1582                         } else {
1583                                 internal->lock          = 0;
1584
1585                                 return DVBFE_ALGO_SEARCH_FAILED;
1586                         }
1587                         break;
1588                 default:
1589                         dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1590                         return DVBFE_ALGO_SEARCH_INVALID;
1591                 }
1592         }
1593
1594         return DVBFE_ALGO_SEARCH_ERROR;
1595 }
1596
1597 static enum stb0899_status stb0899_track_carrier(struct stb0899_state *state)
1598 {
1599         u8 reg;
1600
1601         reg = stb0899_read_reg(state, STB0899_DSTATUS);
1602         dprintk(verbose, FE_DEBUG, 1, "--------------------> STB0899_DSTATUS=[0x%02x]", reg);
1603         if (STB0899_GETFIELD(CARRIER_FOUND, reg)) {
1604                 dprintk(verbose, FE_DEBUG, 1, "-------------> CARRIEROK !");
1605                 return CARRIEROK;
1606         } else {
1607                 dprintk(verbose, FE_DEBUG, 1, "-------------> NOCARRIER !");
1608                 return NOCARRIER;
1609         }
1610
1611         return NOCARRIER;
1612 }
1613
1614 static enum stb0899_status stb0899_get_ifagc(struct stb0899_state *state)
1615 {
1616         u8 reg;
1617
1618         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STATUS);
1619         dprintk(verbose, FE_DEBUG, 1, "DMD_STATUS=[0x%02x]", reg);
1620         if (STB0899_GETFIELD(IF_AGC_LOCK, reg)) {
1621                 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCKED !");
1622                 return AGC1OK;
1623         } else {
1624                 dprintk(verbose, FE_DEBUG, 1, "------------->IF AGC LOCK LOST !");
1625                 return NOAGC1;
1626         }
1627
1628         return NOAGC1;
1629 }
1630
1631 static int stb0899_get_s1fec(struct stb0899_internal *internal, enum dvbfe_fec *fec)
1632 {
1633         switch (internal->fecrate) {
1634         case STB0899_FEC_1_2:
1635                 *fec = DVBFE_FEC_1_2;
1636                 break;
1637         case STB0899_FEC_2_3:
1638                 *fec = DVBFE_FEC_2_3;
1639                 break;
1640         case STB0899_FEC_3_4:
1641                 *fec = DVBFE_FEC_3_4;
1642                 break;
1643         case STB0899_FEC_5_6:
1644                 *fec = DVBFE_FEC_5_6;
1645                 break;
1646         case STB0899_FEC_6_7:
1647                 *fec = DVBFE_FEC_6_7;
1648                 break;
1649         case STB0899_FEC_7_8:
1650                 *fec = DVBFE_FEC_7_8;
1651                 break;
1652         default:
1653                 return -EINVAL;
1654         }
1655
1656         return 0;
1657 }
1658
1659 static int stb0899_get_modcod(struct stb0899_internal *internal, struct dvbs2_params *params)
1660 {
1661         switch (internal->modcod) {
1662         case STB0899_DUMMY_PLF:
1663                 params->modulation      = DVBFE_MOD_NONE;
1664                 params->fec             = DVBFE_FEC_NONE;
1665                 break;
1666         case STB0899_QPSK_14:
1667                 params->modulation      = DVBFE_MOD_QPSK;
1668                 params->fec             = DVBFE_FEC_1_4;
1669                 break;
1670         case STB0899_QPSK_13:
1671                 params->modulation      = DVBFE_MOD_QPSK;
1672                 params->fec             = DVBFE_FEC_1_3;
1673                 break;
1674         case STB0899_QPSK_25:
1675                 params->modulation      = DVBFE_MOD_QPSK;
1676                 params->fec             = DVBFE_FEC_2_5;
1677                 break;
1678         case STB0899_QPSK_12:
1679                 params->modulation      = DVBFE_MOD_QPSK;
1680                 params->fec             = DVBFE_FEC_1_2;
1681                 break;
1682         case STB0899_QPSK_35:
1683                 params->modulation      = DVBFE_MOD_QPSK;
1684                 params->fec             = DVBFE_FEC_3_5;
1685                 break;
1686         case STB0899_QPSK_23:
1687                 params->modulation      = DVBFE_MOD_QPSK;
1688                 params->fec             = DVBFE_FEC_2_3;
1689                 break;
1690         case STB0899_QPSK_34:
1691                 params->modulation      = DVBFE_MOD_QPSK;
1692                 params->fec             = DVBFE_FEC_3_4;
1693                 break;
1694         case STB0899_QPSK_45:
1695                 params->modulation      = DVBFE_MOD_QPSK;
1696                 params->fec             = DVBFE_FEC_4_5;
1697                 break;
1698         case STB0899_QPSK_56:
1699                 params->modulation      = DVBFE_MOD_QPSK;
1700                 params->fec             = DVBFE_FEC_5_6;
1701                 break;
1702         case STB0899_QPSK_89:
1703                 params->modulation      = DVBFE_MOD_QPSK;
1704                 params->fec             = DVBFE_FEC_8_9;
1705                 break;
1706         case STB0899_QPSK_910:
1707                 params->modulation      = DVBFE_MOD_QPSK;
1708                 params->fec             = DVBFE_FEC_9_10;
1709                 break;
1710         case STB0899_8PSK_35:
1711                 params->modulation      = DVBFE_MOD_8PSK;
1712                 params->fec             = DVBFE_FEC_3_5;
1713                 break;
1714         case STB0899_8PSK_23:
1715                 params->modulation      = DVBFE_MOD_8PSK;
1716                 params->fec             = DVBFE_FEC_2_3;
1717                 break;
1718         case STB0899_8PSK_34:
1719                 params->modulation      = DVBFE_MOD_8PSK;
1720                 params->fec             = DVBFE_FEC_3_4;
1721                 break;
1722         case STB0899_8PSK_56:
1723                 params->modulation      = DVBFE_MOD_8PSK;
1724                 params->fec             = DVBFE_FEC_5_6;
1725                 break;
1726         case STB0899_8PSK_89:
1727                 params->modulation      = DVBFE_MOD_8PSK;
1728                 params->fec             = DVBFE_FEC_8_9;
1729                 break;
1730         case STB0899_8PSK_910:
1731                 params->modulation      = DVBFE_MOD_8PSK;
1732                 params->fec             = DVBFE_FEC_9_10;
1733                 break;
1734         case STB0899_16APSK_23:
1735                 params->modulation      = DVBFE_MOD_16APSK;
1736                 params->fec             = DVBFE_FEC_2_3;
1737                 break;
1738         case STB0899_16APSK_34:
1739                 params->modulation      = DVBFE_MOD_16APSK;
1740                 params->fec             = DVBFE_FEC_3_4;
1741                 break;
1742         case STB0899_16APSK_45:
1743                 params->modulation      = DVBFE_MOD_16APSK;
1744                 params->fec             = DVBFE_FEC_4_5;
1745                 break;
1746         case STB0899_16APSK_56:
1747                 params->modulation      = DVBFE_MOD_16APSK;
1748                 params->fec             = DVBFE_FEC_5_6;
1749                 break;
1750         case STB0899_16APSK_89:
1751                 params->modulation      = DVBFE_MOD_16APSK;
1752                 params->fec             = DVBFE_FEC_8_9;
1753                 break;
1754         case STB0899_16APSK_910:
1755                 params->modulation      = DVBFE_MOD_16APSK;
1756                 params->fec             = DVBFE_FEC_9_10;
1757                 break;
1758         case STB0899_32APSK_34:
1759                 params->modulation      = DVBFE_MOD_32APSK;
1760                 params->fec             = DVBFE_FEC_3_4;
1761                 break;
1762         case STB0899_32APSK_45:
1763                 params->modulation      = DVBFE_MOD_32APSK;
1764                 params->fec             = DVBFE_FEC_4_5;
1765                 break;
1766         case STB0899_32APSK_56:
1767                 params->modulation      = DVBFE_MOD_32APSK;
1768                 params->fec             = DVBFE_FEC_5_6;
1769                 break;
1770         case STB0899_32APSK_89:
1771                 params->modulation      = DVBFE_MOD_32APSK;
1772                 params->fec             = DVBFE_FEC_8_9;
1773                 break;
1774         case STB0899_32APSK_910:
1775                 params->modulation      = DVBFE_MOD_32APSK;
1776                 params->fec             = DVBFE_FEC_9_10;
1777                 break;
1778         default:
1779                 return -EINVAL;
1780         }
1781
1782         return 0;
1783 }
1784
1785 /*
1786  * stb0899_track
1787  * periodically check the signal level against a specified
1788  * threshold level and perform derotator centering.
1789  * called once we have a lock from a succesful search
1790  * event.
1791  *
1792  * Will be called periodically called to maintain the
1793  * lock.
1794  *
1795  * Will be used to get parameters as well as info from
1796  * the decoded baseband header
1797  *
1798  * Once a new lock has established, the internal state
1799  * frequency (internal->freq) is updated
1800  */
1801 static int stb0899_track(struct dvb_frontend *fe, struct dvbfe_params *params, int *delay)
1802 {
1803         u32 lock_lost;
1804
1805         struct stb0899_state *state             = fe->demodulator_priv;
1806         struct stb0899_internal *internal       = &state->internal;
1807
1808         lock_lost = STB0899_READ_S2REG(STB0899_S2DEMOD, LOCK_LOST);
1809         dprintk(verbose, FE_DEBUG, 1, "Lock Lost=[0x%02x]\n", lock_lost);
1810         if (STB0899_GETFIELD(LOCK_LOST, lock_lost))
1811                 dprintk(verbose, FE_ERROR, 1, "Demodulator LOST LOCK !\n");
1812
1813         *delay = HZ/10;
1814
1815         return 0;
1816 }
1817
1818 static int stb0899_get_params(struct dvb_frontend *fe, struct dvbfe_params *params)
1819 {
1820         struct stb0899_state *state             = fe->demodulator_priv;
1821         struct stb0899_internal *internal       = &state->internal;
1822
1823         params->frequency                       = internal->freq;
1824         params->inversion                       = internal->inversion;
1825         params->delivery                        = state->delsys;
1826         switch (state->delsys) {
1827         case DVBFE_DELSYS_DVBS:
1828                 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S params");
1829                 params->delsys.dvbs.symbol_rate         = internal->srate;
1830                 params->delsys.dvbs.modulation          = DVBFE_MOD_QPSK;
1831                 break;
1832         case DVBFE_DELSYS_DSS:
1833                 dprintk(verbose, FE_DEBUG, 1, "Get DSS params");
1834                 params->delsys.dss.symbol_rate          = internal->srate;
1835                 params->delsys.dss.modulation           = DVBFE_MOD_QPSK;
1836                 break;
1837         case DVBFE_DELSYS_DVBS2:
1838                 dprintk(verbose, FE_DEBUG, 1, "Get DVB-S2 params");
1839                 params->delsys.dvbs2.symbol_rate        = internal->srate;
1840                 break;
1841         default:
1842                 dprintk(verbose, FE_ERROR, 1, "Unsupported delivery system");
1843                 return -EINVAL;
1844         }
1845
1846         return 0;
1847 }
1848
1849 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1850 {
1851         return DVBFE_ALGO_CUSTOM;
1852 }
1853
1854 static struct dvb_frontend_ops stb0899_ops = {
1855
1856         .info = {
1857                 .name                   = "STB0899 Multistandard",
1858         },
1859
1860         .release                        = stb0899_release,
1861         .init                           = stb0899_init,
1862         .sleep                          = stb0899_sleep,
1863 //      .wakeup                         = stb0899_wakeup,
1864
1865         .i2c_gate_ctrl                  = stb0899_i2c_gate_ctrl,
1866         .get_info                       = stb0899_get_info,
1867         .get_delsys                     = stb0899_get_delsys,
1868
1869         .get_frontend_algo              = stb0899_frontend_algo,
1870         .search                         = stb0899_search,
1871         .track                          = stb0899_track,
1872         .get_params                     = stb0899_get_params,
1873
1874         .read_status                    = stb0899_read_status,
1875         .read_snr                       = stb0899_read_snr,
1876         .read_signal_strength           = stb0899_read_signal_strength,
1877         .read_status                    = stb0899_read_status,
1878         .read_ber                       = stb0899_read_ber,
1879
1880         .set_voltage                    = stb0899_set_voltage,
1881         .set_tone                       = stb0899_set_tone,
1882
1883         .diseqc_send_master_cmd         = stb0899_send_diseqc_msg,
1884         .diseqc_recv_slave_reply        = stb0899_recv_slave_reply,
1885         .diseqc_send_burst              = stb0899_send_diseqc_burst,
1886 };
1887
1888 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1889 {
1890         struct stb0899_state *state = NULL;
1891         enum stb0899_inversion inversion;
1892
1893         state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1894         if (state == NULL)
1895                 goto error;
1896
1897         inversion                               = config->inversion;
1898         state->verbose                          = verbose;
1899         state->config                           = config;
1900         state->i2c                              = i2c;
1901         state->frontend.ops                     = stb0899_ops;
1902         state->frontend.demodulator_priv        = state;
1903         state->internal.inversion               = inversion;
1904
1905         stb0899_wakeup(&state->frontend);
1906         if (stb0899_get_dev_id(state) == -ENODEV) {
1907                 printk("%s: Exiting .. !\n", __func__);
1908                 goto error;
1909         }
1910
1911         printk("%s: Attaching STB0899 \n", __func__);
1912         return &state->frontend;
1913
1914 error:
1915         kfree(state);
1916         return NULL;
1917 }
1918 EXPORT_SYMBOL(stb0899_attach);
1919 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1920 MODULE_AUTHOR("Manu Abraham");
1921 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1922 MODULE_LICENSE("GPL");