drivers/media/dvb-frontends/stb0899_drv.c

   1 /*
   2         STB0899 Multistandard Frontend driver
   3         Copyright (C) Manu Abraham ([email protected])
   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/jiffies.h>
  24 #include <linux/kernel.h>
  25 #include <linux/module.h>
  26 #include <linux/slab.h>
  27 #include <linux/string.h>
  28
  29 #include <linux/dvb/frontend.h>
  30 #include "dvb_frontend.h"
  31
  32 #include "stb0899_drv.h"
  33 #include "stb0899_priv.h"
  34 #include "stb0899_reg.h"
  35
  36 /* Max transfer size done by I2C transfer functions */
  37 #define MAX_XFER_SIZE  64
  38
  39 static unsigned int verbose = 0;//1;
  40 module_param(verbose, int, 0644);
  41
  42 /* C/N in dB/10, NIRM/NIRL */
  43 static const struct stb0899_tab stb0899_cn_tab[] = {
  44         { 200,  2600 },
  45         { 190,  2700 },
  46         { 180,  2860 },
  47         { 170,  3020 },
  48         { 160,  3210 },
  49         { 150,  3440 },
  50         { 140,  3710 },
  51         { 130,  4010 },
  52         { 120,  4360 },
  53         { 110,  4740 },
  54         { 100,  5190 },
  55         { 90,   5670 },
  56         { 80,   6200 },
  57         { 70,   6770 },
  58         { 60,   7360 },
  59         { 50,   7970 },
  60         { 40,   8250 },
  61         { 30,   9000 },
  62         { 20,   9450 },
  63         { 15,   9600 },
  64 };
  65
  66 /* DVB-S AGCIQ_VALUE vs. signal level in dBm/10.
  67  * As measured, connected to a modulator.
  68  * -8.0 to -50.0 dBm directly connected,
  69  * -52.0 to -74.8 with extra attenuation.
  70  * Cut-off to AGCIQ_VALUE = 0x80 below -74.8dBm.
  71  * Crude linear extrapolation below -84.8dBm and above -8.0dBm.
  72  */
  73 static const struct stb0899_tab stb0899_dvbsrf_tab[] = {
  74         { -750, -128 },
  75         { -748,  -94 },
  76         { -745,  -92 },
  77         { -735,  -90 },
  78         { -720,  -87 },
  79         { -670,  -77 },
  80         { -640,  -70 },
  81         { -610,  -62 },
  82         { -600,  -60 },
  83         { -590,  -56 },
  84         { -560,  -41 },
  85         { -540,  -25 },
  86         { -530,  -17 },
  87         { -520,  -11 },
  88         { -500,    1 },
  89         { -490,    6 },
  90         { -480,   10 },
  91         { -440,   22 },
  92         { -420,   27 },
  93         { -400,   31 },
  94         { -380,   34 },
  95         { -340,   40 },
  96         { -320,   43 },
  97         { -280,   48 },
  98         { -250,   52 },
  99         { -230,   55 },
 100         { -180,   61 },
 101         { -140,   66 },
 102         {  -90,   73 },
 103         {  -80,   74 },
 104         {  500,  127 }
 105 };
 106
 107 /* DVB-S2 IF_AGC_GAIN vs. signal level in dBm/10.
 108  * As measured, connected to a modulator.
 109  * -8.0 to -50.1 dBm directly connected,
 110  * -53.0 to -76.6 with extra attenuation.
 111  * Cut-off to IF_AGC_GAIN = 0x3fff below -76.6dBm.
 112  * Crude linear extrapolation below -76.6dBm and above -8.0dBm.
 113  */
 114 static const struct stb0899_tab stb0899_dvbs2rf_tab[] = {
 115         {  700,     0 },
 116         {  -80,  3217 },
 117         { -150,  3893 },
 118         { -190,  4217 },
 119         { -240,  4621 },
 120         { -280,  4945 },
 121         { -320,  5273 },
 122         { -350,  5545 },
 123         { -370,  5741 },
 124         { -410,  6147 },
 125         { -450,  6671 },
 126         { -490,  7413 },
 127         { -501,  7665 },
 128         { -530,  8767 },
 129         { -560, 10219 },
 130         { -580, 10939 },
 131         { -590, 11518 },
 132         { -600, 11723 },
 133         { -650, 12659 },
 134         { -690, 13219 },
 135         { -730, 13645 },
 136         { -750, 13909 },
 137         { -766, 14153 },
 138         { -950, 16383 }
 139 };
 140
 141 /* DVB-S2 Es/N0 quant in dB/100 vs read value * 100*/
 142 static struct stb0899_tab stb0899_quant_tab[] = {
 143         {    0,     0 },
 144         {    0,   100 },
 145         {  600,   200 },
 146         {  950,   299 },
 147         { 1200,   398 },
 148         { 1400,   501 },
 149         { 1560,   603 },
 150         { 1690,   700 },
 151         { 1810,   804 },
 152         { 1910,   902 },
 153         { 2000,  1000 },
 154         { 2080,  1096 },
 155         { 2160,  1202 },
 156         { 2230,  1303 },
 157         { 2350,  1496 },
 158         { 2410,  1603 },
 159         { 2460,  1698 },
 160         { 2510,  1799 },
 161         { 2600,  1995 },
 162         { 2650,  2113 },
 163         { 2690,  2213 },
 164         { 2720,  2291 },
 165         { 2760,  2399 },
 166         { 2800,  2512 },
 167         { 2860,  2692 },
 168         { 2930,  2917 },
 169         { 2960,  3020 },
 170         { 3010,  3199 },
 171         { 3040,  3311 },
 172         { 3060,  3388 },
 173         { 3120,  3631 },
 174         { 3190,  3936 },
 175         { 3400,  5012 },
 176         { 3610,  6383 },
 177         { 3800,  7943 },
 178         { 4210, 12735 },
 179         { 4500, 17783 },
 180         { 4690, 22131 },
 181         { 4810, 25410 }
 182 };
 183
 184 /* DVB-S2 Es/N0 estimate in dB/100 vs read value */
 185 static struct stb0899_tab stb0899_est_tab[] = {
 186         {    0,      0 },
 187         {    0,      1 },
 188         {  301,      2 },
 189         { 1204,     16 },
 190         { 1806,     64 },
 191         { 2408,    256 },
 192         { 2709,    512 },
 193         { 3010,   1023 },
 194         { 3311,   2046 },
 195         { 3612,   4093 },
 196         { 3823,   6653 },
 197         { 3913,   8185 },
 198         { 4010,  10233 },
 199         { 4107,  12794 },
 200         { 4214,  16368 },
 201         { 4266,  18450 },
 202         { 4311,  20464 },
 203         { 4353,  22542 },
 204         { 4391,  24604 },
 205         { 4425,  26607 },
 206         { 4457,  28642 },
 207         { 4487,  30690 },
 208         { 4515,  32734 },
 209         { 4612,  40926 },
 210         { 4692,  49204 },
 211         { 4816,  65464 },
 212         { 4913,  81846 },
 213         { 4993,  98401 },
 214         { 5060, 114815 },
 215         { 5118, 131220 },
 216         { 5200, 158489 },
 217         { 5300, 199526 },
 218         { 5400, 251189 },
 219         { 5500, 316228 },
 220         { 5600, 398107 },
 221         { 5720, 524807 },
 222         { 5721, 526017 },
 223 };
 224
 225 static int _stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
 226 {
 227         int ret;
 228
 229         u8 b0[] = { reg >> 8, reg & 0xff };
 230         u8 buf;
 231
 232         struct i2c_msg msg[] = {
 233                 {
 234                         .addr   = state->config->demod_address,
 235                         .flags  = 0,
 236                         .buf    = b0,
 237                         .len    = 2
 238                 },{
 239                         .addr   = state->config->demod_address,
 240                         .flags  = I2C_M_RD,
 241                         .buf    = &buf,
 242                         .len    = 1
 243                 }
 244         };
 245
 246         ret = i2c_transfer(state->i2c, msg, 2);
 247         if (ret != 2) {
 248                 if (ret != -ERESTARTSYS)
 249                         dprintk(state->verbose, FE_ERROR, 1,
 250                                 "Read error, Reg=[0x%02x], Status=%d",
 251                                 reg, ret);
 252
 253                 return ret < 0 ? ret : -EREMOTEIO;
 254         }
 255         if (unlikely(*state->verbose >= FE_DEBUGREG))
 256                 dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%02x], data=%02x",
 257                         reg, buf);
 258
 259         return (unsigned int)buf;
 260 }
 261
 262 int stb0899_read_reg(struct stb0899_state *state, unsigned int reg)
 263 {
 264         int result;
 265
 266         result = _stb0899_read_reg(state, reg);
 267         /*
 268          * Bug ID 9:
 269          * access to 0xf2xx/0xf6xx
 270          * must be followed by read from 0xf2ff/0xf6ff.
 271          */
 272         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 273             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 274                 _stb0899_read_reg(state, (reg | 0x00ff));
 275
 276         return result;
 277 }
 278
 279 u32 _stb0899_read_s2reg(struct stb0899_state *state,
 280                         u32 stb0899_i2cdev,
 281                         u32 stb0899_base_addr,
 282                         u16 stb0899_reg_offset)
 283 {
 284         int status;
 285         u32 data;
 286         u8 buf[7] = { 0 };
 287         u16 tmpaddr;
 288
 289         u8 buf_0[] = {
 290                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 291                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 292                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 293                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 294                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 295                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 296         };
 297         u8 buf_1[] = {
 298                 0x00,   /* 0xf3 Reg Offset      */
 299                 0x00,   /* 0x44 Reg Offset      */
 300         };
 301
 302         struct i2c_msg msg_0 = {
 303                 .addr   = state->config->demod_address,
 304                 .flags  = 0,
 305                 .buf    = buf_0,
 306                 .len    = 6
 307         };
 308
 309         struct i2c_msg msg_1 = {
 310                 .addr   = state->config->demod_address,
 311                 .flags  = 0,
 312                 .buf    = buf_1,
 313                 .len    = 2
 314         };
 315
 316         struct i2c_msg msg_r = {
 317                 .addr   = state->config->demod_address,
 318                 .flags  = I2C_M_RD,
 319                 .buf    = buf,
 320                 .len    = 4
 321         };
 322
 323         tmpaddr = stb0899_reg_offset & 0xff00;
 324         if (!(stb0899_reg_offset & 0x8))
 325                 tmpaddr = stb0899_reg_offset | 0x20;
 326
 327         buf_1[0] = GETBYTE(tmpaddr, BYTE1);
 328         buf_1[1] = GETBYTE(tmpaddr, BYTE0);
 329
 330         status = i2c_transfer(state->i2c, &msg_0, 1);
 331         if (status < 1) {
 332                 if (status != -ERESTARTSYS)
 333                         printk(KERN_ERR "%s ERR(1), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 334                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 335
 336                 goto err;
 337         }
 338
 339         /* Dummy        */
 340         status = i2c_transfer(state->i2c, &msg_1, 1);
 341         if (status < 1)
 342                 goto err;
 343
 344         status = i2c_transfer(state->i2c, &msg_r, 1);
 345         if (status < 1)
 346                 goto err;
 347
 348         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 349         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 350
 351         /* Actual       */
 352         status = i2c_transfer(state->i2c, &msg_1, 1);
 353         if (status < 1) {
 354                 if (status != -ERESTARTSYS)
 355                         printk(KERN_ERR "%s ERR(2), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 356                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 357                 goto err;
 358         }
 359
 360         status = i2c_transfer(state->i2c, &msg_r, 1);
 361         if (status < 1) {
 362                 if (status != -ERESTARTSYS)
 363                         printk(KERN_ERR "%s ERR(3), Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Status=%d\n",
 364                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, status);
 365                 return status < 0 ? status : -EREMOTEIO;
 366         }
 367
 368         data = MAKEWORD32(buf[3], buf[2], buf[1], buf[0]);
 369         if (unlikely(*state->verbose >= FE_DEBUGREG))
 370                 printk(KERN_DEBUG "%s Device=[0x%04x], Base address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 371                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, data);
 372
 373         return data;
 374
 375 err:
 376         return status < 0 ? status : -EREMOTEIO;
 377 }
 378
 379 int stb0899_write_s2reg(struct stb0899_state *state,
 380                         u32 stb0899_i2cdev,
 381                         u32 stb0899_base_addr,
 382                         u16 stb0899_reg_offset,
 383                         u32 stb0899_data)
 384 {
 385         int status;
 386
 387         /* Base Address Setup   */
 388         u8 buf_0[] = {
 389                 GETBYTE(stb0899_i2cdev, BYTE1),         /* 0xf3 S2 Base Address (MSB)   */
 390                 GETBYTE(stb0899_i2cdev, BYTE0),         /* 0xfc S2 Base Address (LSB)   */
 391                 GETBYTE(stb0899_base_addr, BYTE0),      /* 0x00 Base Address (LSB)      */
 392                 GETBYTE(stb0899_base_addr, BYTE1),      /* 0x04 Base Address (LSB)      */
 393                 GETBYTE(stb0899_base_addr, BYTE2),      /* 0x00 Base Address (MSB)      */
 394                 GETBYTE(stb0899_base_addr, BYTE3),      /* 0x00 Base Address (MSB)      */
 395         };
 396         u8 buf_1[] = {
 397                 0x00,   /* 0xf3 Reg Offset      */
 398                 0x00,   /* 0x44 Reg Offset      */
 399                 0x00,   /* data                 */
 400                 0x00,   /* data                 */
 401                 0x00,   /* data                 */
 402                 0x00,   /* data                 */
 403         };
 404
 405         struct i2c_msg msg_0 = {
 406                 .addr   = state->config->demod_address,
 407                 .flags  = 0,
 408                 .buf    = buf_0,
 409                 .len    = 6
 410         };
 411
 412         struct i2c_msg msg_1 = {
 413                 .addr   = state->config->demod_address,
 414                 .flags  = 0,
 415                 .buf    = buf_1,
 416                 .len    = 6
 417         };
 418
 419         buf_1[0] = GETBYTE(stb0899_reg_offset, BYTE1);
 420         buf_1[1] = GETBYTE(stb0899_reg_offset, BYTE0);
 421         buf_1[2] = GETBYTE(stb0899_data, BYTE0);
 422         buf_1[3] = GETBYTE(stb0899_data, BYTE1);
 423         buf_1[4] = GETBYTE(stb0899_data, BYTE2);
 424         buf_1[5] = GETBYTE(stb0899_data, BYTE3);
 425
 426         if (unlikely(*state->verbose >= FE_DEBUGREG))
 427                 printk(KERN_DEBUG "%s Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x]\n",
 428                        __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data);
 429
 430         status = i2c_transfer(state->i2c, &msg_0, 1);
 431         if (unlikely(status < 1)) {
 432                 if (status != -ERESTARTSYS)
 433                         printk(KERN_ERR "%s ERR (1), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 434                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 435                 goto err;
 436         }
 437         status = i2c_transfer(state->i2c, &msg_1, 1);
 438         if (unlikely(status < 1)) {
 439                 if (status != -ERESTARTSYS)
 440                         printk(KERN_ERR "%s ERR (2), Device=[0x%04x], Base Address=[0x%08x], Offset=[0x%04x], Data=[0x%08x], status=%d\n",
 441                                __func__, stb0899_i2cdev, stb0899_base_addr, stb0899_reg_offset, stb0899_data, status);
 442
 443                 return status < 0 ? status : -EREMOTEIO;
 444         }
 445
 446         return 0;
 447
 448 err:
 449         return status < 0 ? status : -EREMOTEIO;
 450 }
 451
 452 int stb0899_read_regs(struct stb0899_state *state, unsigned int reg, u8 *buf, u32 count)
 453 {
 454         int status;
 455
 456         u8 b0[] = { reg >> 8, reg & 0xff };
 457
 458         struct i2c_msg msg[] = {
 459                 {
 460                         .addr   = state->config->demod_address,
 461                         .flags  = 0,
 462                         .buf    = b0,
 463                         .len    = 2
 464                 },{
 465                         .addr   = state->config->demod_address,
 466                         .flags  = I2C_M_RD,
 467                         .buf    = buf,
 468                         .len    = count
 469                 }
 470         };
 471
 472         status = i2c_transfer(state->i2c, msg, 2);
 473         if (status != 2) {
 474                 if (status != -ERESTARTSYS)
 475                         printk(KERN_ERR "%s Read error, Reg=[0x%04x], Count=%u, Status=%d\n",
 476                                __func__, reg, count, status);
 477                 goto err;
 478         }
 479         /*
 480          * Bug ID 9:
 481          * access to 0xf2xx/0xf6xx
 482          * must be followed by read from 0xf2ff/0xf6ff.
 483          */
 484         if ((reg != 0xf2ff) && (reg != 0xf6ff) &&
 485             (((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 486                 _stb0899_read_reg(state, (reg | 0x00ff));
 487
 488         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 489                 int i;
 490
 491                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 492                 for (i = 0; i < count; i++) {
 493                         printk(" %02x", buf[i]);
 494                 }
 495                 printk("\n");
 496         }
 497
 498         return 0;
 499 err:
 500         return status < 0 ? status : -EREMOTEIO;
 501 }
 502
 503 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
 504 {
 505         int ret;
 506         u8 buf[MAX_XFER_SIZE];
 507         struct i2c_msg i2c_msg = {
 508                 .addr   = state->config->demod_address,
 509                 .flags  = 0,
 510                 .buf    = buf,
 511                 .len    = 2 + count
 512         };
 513
 514         if (2 + count > sizeof(buf)) {
 515                 printk(KERN_WARNING
 516                        "%s: i2c wr reg=%04x: len=%d is too big!\n",
 517                        KBUILD_MODNAME, reg, count);
 518                 return -EINVAL;
 519         }
 520
 521         buf[0] = reg >> 8;
 522         buf[1] = reg & 0xff;
 523         memcpy(&buf[2], data, count);
 524
 525         if (unlikely(*state->verbose >= FE_DEBUGREG)) {
 526                 int i;
 527
 528                 printk(KERN_DEBUG "%s [0x%04x]:", __func__, reg);
 529                 for (i = 0; i < count; i++)
 530                         printk(" %02x", data[i]);
 531                 printk("\n");
 532         }
 533         ret = i2c_transfer(state->i2c, &i2c_msg, 1);
 534
 535         /*
 536          * Bug ID 9:
 537          * access to 0xf2xx/0xf6xx
 538          * must be followed by read from 0xf2ff/0xf6ff.
 539          */
 540         if ((((reg & 0xff00) == 0xf200) || ((reg & 0xff00) == 0xf600)))
 541                 stb0899_read_reg(state, (reg | 0x00ff));
 542
 543         if (ret != 1) {
 544                 if (ret != -ERESTARTSYS)
 545                         dprintk(state->verbose, FE_ERROR, 1, "Reg=[0x%04x], Data=[0x%02x ...], Count=%u, Status=%d",
 546                                 reg, data[0], count, ret);
 547                 return ret < 0 ? ret : -EREMOTEIO;
 548         }
 549
 550         return 0;
 551 }
 552
 553 int stb0899_write_reg(struct stb0899_state *state, unsigned int reg, u8 data)
 554 {
 555         return stb0899_write_regs(state, reg, &data, 1);
 556 }
 557
 558 /*
 559  * stb0899_get_mclk
 560  * Get STB0899 master clock frequency
 561  * ExtClk: external clock frequency (Hz)
 562  */
 563 static u32 stb0899_get_mclk(struct stb0899_state *state)
 564 {
 565         u32 mclk = 0, div = 0;
 566
 567         div = stb0899_read_reg(state, STB0899_NCOARSE);
 568         mclk = (div + 1) * state->config->xtal_freq / 6;
 569         dprintk(state->verbose, FE_DEBUG, 1, "div=%d, mclk=%d", div, mclk);
 570
 571         return mclk;
 572 }
 573
 574 /*
 575  * stb0899_set_mclk
 576  * Set STB0899 master Clock frequency
 577  * Mclk: demodulator master clock
 578  * ExtClk: external clock frequency (Hz)
 579  */
 580 static void stb0899_set_mclk(struct stb0899_state *state, u32 Mclk)
 581 {
 582         struct stb0899_internal *internal = &state->internal;
 583         u8 mdiv = 0;
 584
 585         dprintk(state->verbose, FE_DEBUG, 1, "state->config=%p", state->config);
 586         mdiv = ((6 * Mclk) / state->config->xtal_freq) - 1;
 587         dprintk(state->verbose, FE_DEBUG, 1, "mdiv=%d", mdiv);
 588
 589         stb0899_write_reg(state, STB0899_NCOARSE, mdiv);
 590         internal->master_clk = stb0899_get_mclk(state);
 591
 592         dprintk(state->verbose, FE_DEBUG, 1, "MasterCLOCK=%d", internal->master_clk);
 593 }
 594
 595 static int stb0899_postproc(struct stb0899_state *state, u8 ctl, int enable)
 596 {
 597         struct stb0899_config *config           = state->config;
 598         const struct stb0899_postproc *postproc = config->postproc;
 599
 600         /* post process event */
 601         if (postproc) {
 602                 if (enable) {
 603                         if (postproc[ctl].level == STB0899_GPIOPULLUP)
 604                                 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
 605                         else
 606                                 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
 607                 } else {
 608                         if (postproc[ctl].level == STB0899_GPIOPULLUP)
 609                                 stb0899_write_reg(state, postproc[ctl].gpio, 0x82);
 610                         else
 611                                 stb0899_write_reg(state, postproc[ctl].gpio, 0x02);
 612                 }
 613         }
 614         return 0;
 615 }
 616
 617 static void stb0899_release(struct dvb_frontend *fe)
 618 {
 619         struct stb0899_state *state = fe->demodulator_priv;
 620
 621         dprintk(state->verbose, FE_DEBUG, 1, "Release Frontend");
 622         /* post process event */
 623         stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
 624         kfree(state);
 625 }
 626
 627 /*
 628  * stb0899_get_alpha
 629  * return: rolloff
 630  */
 631 static int stb0899_get_alpha(struct stb0899_state *state)
 632 {
 633         u8 mode_coeff;
 634
 635         mode_coeff = stb0899_read_reg(state, STB0899_DEMOD);
 636
 637         if (STB0899_GETFIELD(MODECOEFF, mode_coeff) == 1)
 638                 return 20;
 639         else
 640                 return 35;
 641 }
 642
 643 /*
 644  * stb0899_init_calc
 645  */
 646 static void stb0899_init_calc(struct stb0899_state *state)
 647 {
 648         struct stb0899_internal *internal = &state->internal;
 649         int master_clk;
 650         u8 agc[2];
 651         u32 reg;
 652
 653         /* Read registers (in burst mode)       */
 654         stb0899_read_regs(state, STB0899_AGC1REF, agc, 2); /* AGC1R and AGC2O   */
 655
 656         /* Initial calculations */
 657         master_clk                      = stb0899_get_mclk(state);
 658         internal->t_agc1                = 0;
 659         internal->t_agc2                = 0;
 660         internal->master_clk            = master_clk;
 661         internal->mclk                  = master_clk / 65536L;
 662         internal->rolloff               = stb0899_get_alpha(state);
 663
 664         /* DVBS2 Initial calculations   */
 665         /* Set AGC value to the middle  */
 666         internal->agc_gain              = 8154;
 667         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_CNTRL);
 668         STB0899_SETFIELD_VAL(IF_GAIN_INIT, reg, internal->agc_gain);
 669         stb0899_write_s2reg(state, STB0899_S2DEMOD, STB0899_BASE_IF_AGC_CNTRL, STB0899_OFF0_IF_AGC_CNTRL, reg);
 670
 671         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, RRC_ALPHA);
 672         internal->rrc_alpha             = STB0899_GETFIELD(RRC_ALPHA, reg);
 673
 674         internal->center_freq           = 0;
 675         internal->av_frame_coarse       = 10;
 676         internal->av_frame_fine         = 20;
 677         internal->step_size             = 2;
 678 /*
 679         if ((pParams->SpectralInv == FE_IQ_NORMAL) || (pParams->SpectralInv == FE_IQ_AUTO))
 680                 pParams->IQLocked = 0;
 681         else
 682                 pParams->IQLocked = 1;
 683 */
 684 }
 685
 686 static int stb0899_wait_diseqc_fifo_empty(struct stb0899_state *state, int timeout)
 687 {
 688         u8 reg = 0;
 689         unsigned long start = jiffies;
 690
 691         while (1) {
 692                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 693                 if (!STB0899_GETFIELD(FIFOFULL, reg))
 694                         break;
 695                 if (time_after(jiffies, start + timeout)) {
 696                         dprintk(state->verbose, FE_ERROR, 1, "timed out !!");
 697                         return -ETIMEDOUT;
 698                 }
 699         }
 700
 701         return 0;
 702 }
 703
 704 static int stb0899_send_diseqc_msg(struct dvb_frontend *fe, struct dvb_diseqc_master_cmd *cmd)
 705 {
 706         struct stb0899_state *state = fe->demodulator_priv;
 707         u8 reg, i;
 708
 709         if (cmd->msg_len > sizeof(cmd->msg))
 710                 return -EINVAL;
 711
 712         /* enable FIFO precharge        */
 713         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 714         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 1);
 715         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 716         for (i = 0; i < cmd->msg_len; i++) {
 717                 /* wait for FIFO empty  */
 718                 if (stb0899_wait_diseqc_fifo_empty(state, 100) < 0)
 719                         return -ETIMEDOUT;
 720
 721                 stb0899_write_reg(state, STB0899_DISFIFO, cmd->msg[i]);
 722         }
 723         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 724         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0);
 725         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 726         msleep(100);
 727         return 0;
 728 }
 729
 730 static int stb0899_wait_diseqc_rxidle(struct stb0899_state *state, int timeout)
 731 {
 732         u8 reg = 0;
 733         unsigned long start = jiffies;
 734
 735         while (!STB0899_GETFIELD(RXEND, reg)) {
 736                 reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 737                 if (time_after(jiffies, start + timeout)) {
 738                         dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
 739                         return -ETIMEDOUT;
 740                 }
 741                 msleep(10);
 742         }
 743
 744         return 0;
 745 }
 746
 747 static int stb0899_recv_slave_reply(struct dvb_frontend *fe, struct dvb_diseqc_slave_reply *reply)
 748 {
 749         struct stb0899_state *state = fe->demodulator_priv;
 750         u8 reg, length = 0, i;
 751         int result;
 752
 753         if (stb0899_wait_diseqc_rxidle(state, 100) < 0)
 754                 return -ETIMEDOUT;
 755
 756         reg = stb0899_read_reg(state, STB0899_DISRX_ST0);
 757         if (STB0899_GETFIELD(RXEND, reg)) {
 758
 759                 reg = stb0899_read_reg(state, STB0899_DISRX_ST1);
 760                 length = STB0899_GETFIELD(FIFOBYTENBR, reg);
 761
 762                 if (length > sizeof (reply->msg)) {
 763                         result = -EOVERFLOW;
 764                         goto exit;
 765                 }
 766                 reply->msg_len = length;
 767
 768                 /* extract data */
 769                 for (i = 0; i < length; i++)
 770                         reply->msg[i] = stb0899_read_reg(state, STB0899_DISFIFO);
 771         }
 772
 773         return 0;
 774 exit:
 775
 776         return result;
 777 }
 778
 779 static int stb0899_wait_diseqc_txidle(struct stb0899_state *state, int timeout)
 780 {
 781         u8 reg = 0;
 782         unsigned long start = jiffies;
 783
 784         while (!STB0899_GETFIELD(TXIDLE, reg)) {
 785                 reg = stb0899_read_reg(state, STB0899_DISSTATUS);
 786                 if (time_after(jiffies, start + timeout)) {
 787                         dprintk(state->verbose, FE_ERROR, 1, "timed out!!");
 788                         return -ETIMEDOUT;
 789                 }
 790                 msleep(10);
 791         }
 792         return 0;
 793 }
 794
 795 static int stb0899_send_diseqc_burst(struct dvb_frontend *fe,
 796                                      enum fe_sec_mini_cmd burst)
 797 {
 798         struct stb0899_state *state = fe->demodulator_priv;
 799         u8 reg, old_state;
 800
 801         /* wait for diseqc idle */
 802         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 803                 return -ETIMEDOUT;
 804
 805         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 806         old_state = reg;
 807         /* set to burst mode    */
 808         STB0899_SETFIELD_VAL(DISEQCMODE, reg, 0x03);
 809         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x01);
 810         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 811         switch (burst) {
 812         case SEC_MINI_A:
 813                 /* unmodulated  */
 814                 stb0899_write_reg(state, STB0899_DISFIFO, 0x00);
 815                 break;
 816         case SEC_MINI_B:
 817                 /* modulated    */
 818                 stb0899_write_reg(state, STB0899_DISFIFO, 0xff);
 819                 break;
 820         }
 821         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 822         STB0899_SETFIELD_VAL(DISPRECHARGE, reg, 0x00);
 823         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 824         /* wait for diseqc idle */
 825         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
 826                 return -ETIMEDOUT;
 827
 828         /* restore state        */
 829         stb0899_write_reg(state, STB0899_DISCNTRL1, old_state);
 830
 831         return 0;
 832 }
 833
 834 static int stb0899_diseqc_init(struct stb0899_state *state)
 835 {
 836 /*
 837         struct dvb_diseqc_slave_reply rx_data;
 838 */
 839         u8 f22_tx, reg;
 840
 841         u32 mclk, tx_freq = 22000;/* count = 0, i; */
 842         reg = stb0899_read_reg(state, STB0899_DISCNTRL2);
 843         STB0899_SETFIELD_VAL(ONECHIP_TRX, reg, 0);
 844         stb0899_write_reg(state, STB0899_DISCNTRL2, reg);
 845
 846         /* disable Tx spy       */
 847         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 848         STB0899_SETFIELD_VAL(DISEQCRESET, reg, 1);
 849         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 850
 851         reg = stb0899_read_reg(state, STB0899_DISCNTRL1);
 852         STB0899_SETFIELD_VAL(DISEQCRESET, reg, 0);
 853         stb0899_write_reg(state, STB0899_DISCNTRL1, reg);
 854
 855         mclk = stb0899_get_mclk(state);
 856         f22_tx = mclk / (tx_freq * 32);
 857         stb0899_write_reg(state, STB0899_DISF22, f22_tx); /* DiSEqC Tx freq     */
 858         state->rx_freq = 20000;
 859
 860         return 0;
 861 }
 862
 863 static int stb0899_sleep(struct dvb_frontend *fe)
 864 {
 865         struct stb0899_state *state = fe->demodulator_priv;
 866 /*
 867         u8 reg;
 868 */
 869         dprintk(state->verbose, FE_DEBUG, 1, "Going to Sleep .. (Really tired .. :-))");
 870         /* post process event */
 871         stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 0);
 872
 873         return 0;
 874 }
 875
 876 static int stb0899_wakeup(struct dvb_frontend *fe)
 877 {
 878         int rc;
 879         struct stb0899_state *state = fe->demodulator_priv;
 880
 881         if ((rc = stb0899_write_reg(state, STB0899_SYNTCTRL, STB0899_SELOSCI)))
 882                 return rc;
 883         /* Activate all clocks; DVB-S2 registers are inaccessible otherwise. */
 884         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK1, 0x00)))
 885                 return rc;
 886         if ((rc = stb0899_write_reg(state, STB0899_STOPCLK2, 0x00)))
 887                 return rc;
 888
 889         /* post process event */
 890         stb0899_postproc(state, STB0899_POSTPROC_GPIO_POWER, 1);
 891
 892         return 0;
 893 }
 894
 895 static int stb0899_init(struct dvb_frontend *fe)
 896 {
 897         int i;
 898         struct stb0899_state *state = fe->demodulator_priv;
 899         struct stb0899_config *config = state->config;
 900
 901         dprintk(state->verbose, FE_DEBUG, 1, "Initializing STB0899 ... ");
 902
 903         /* init device          */
 904         dprintk(state->verbose, FE_DEBUG, 1, "init device");
 905         for (i = 0; config->init_dev[i].address != 0xffff; i++)
 906                 stb0899_write_reg(state, config->init_dev[i].address, config->init_dev[i].data);
 907
 908         dprintk(state->verbose, FE_DEBUG, 1, "init S2 demod");
 909         /* init S2 demod        */
 910         for (i = 0; config->init_s2_demod[i].offset != 0xffff; i++)
 911                 stb0899_write_s2reg(state, STB0899_S2DEMOD,
 912                                     config->init_s2_demod[i].base_address,
 913                                     config->init_s2_demod[i].offset,
 914                                     config->init_s2_demod[i].data);
 915
 916         dprintk(state->verbose, FE_DEBUG, 1, "init S1 demod");
 917         /* init S1 demod        */
 918         for (i = 0; config->init_s1_demod[i].address != 0xffff; i++)
 919                 stb0899_write_reg(state, config->init_s1_demod[i].address, config->init_s1_demod[i].data);
 920
 921         dprintk(state->verbose, FE_DEBUG, 1, "init S2 FEC");
 922         /* init S2 fec          */
 923         for (i = 0; config->init_s2_fec[i].offset != 0xffff; i++)
 924                 stb0899_write_s2reg(state, STB0899_S2FEC,
 925                                     config->init_s2_fec[i].base_address,
 926                                     config->init_s2_fec[i].offset,
 927                                     config->init_s2_fec[i].data);
 928
 929         dprintk(state->verbose, FE_DEBUG, 1, "init TST");
 930         /* init test            */
 931         for (i = 0; config->init_tst[i].address != 0xffff; i++)
 932                 stb0899_write_reg(state, config->init_tst[i].address, config->init_tst[i].data);
 933
 934         stb0899_init_calc(state);
 935         stb0899_diseqc_init(state);
 936
 937         return 0;
 938 }
 939
 940 static int stb0899_table_lookup(const struct stb0899_tab *tab, int max, int val)
 941 {
 942         int res = 0;
 943         int min = 0, med;
 944
 945         if (val < tab[min].read)
 946                 res = tab[min].real;
 947         else if (val >= tab[max].read)
 948                 res = tab[max].real;
 949         else {
 950                 while ((max - min) > 1) {
 951                         med = (max + min) / 2;
 952                         if (val >= tab[min].read && val < tab[med].read)
 953                                 max = med;
 954                         else
 955                                 min = med;
 956                 }
 957                 res = ((val - tab[min].read) *
 958                        (tab[max].real - tab[min].real) /
 959                        (tab[max].read - tab[min].read)) +
 960                         tab[min].real;
 961         }
 962
 963         return res;
 964 }
 965
 966 static int stb0899_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 967 {
 968         struct stb0899_state *state             = fe->demodulator_priv;
 969         struct stb0899_internal *internal       = &state->internal;
 970
 971         int val;
 972         u32 reg;
 973         *strength = 0;
 974         switch (state->delsys) {
 975         case SYS_DVBS:
 976         case SYS_DSS:
 977                 if (internal->lock) {
 978                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
 979                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
 980
 981                                 reg = stb0899_read_reg(state, STB0899_AGCIQIN);
 982                                 val = (s32)(s8)STB0899_GETFIELD(AGCIQVALUE, reg);
 983
 984                                 *strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
 985                                 *strength += 750;
 986                                 dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
 987                                         val & 0xff, *strength);
 988                         }
 989                 }
 990                 break;
 991         case SYS_DVBS2:
 992                 if (internal->lock) {
 993                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, IF_AGC_GAIN);
 994                         val = STB0899_GETFIELD(IF_AGC_GAIN, reg);
 995
 996                         *strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
 997                         *strength += 950;
 998                         dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
 999                                 val & 0x3fff, *strength);
1000                 }
1001                 break;
1002         default:
1003                 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1004                 return -EINVAL;
1005         }
1006
1007         return 0;
1008 }
1009
1010 static int stb0899_read_snr(struct dvb_frontend *fe, u16 *snr)
1011 {
1012         struct stb0899_state *state             = fe->demodulator_priv;
1013         struct stb0899_internal *internal       = &state->internal;
1014
1015         unsigned int val, quant, quantn = -1, est, estn = -1;
1016         u8 buf[2];
1017         u32 reg;
1018
1019         *snr = 0;
1020         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
1021         switch (state->delsys) {
1022         case SYS_DVBS:
1023         case SYS_DSS:
1024                 if (internal->lock) {
1025                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1026
1027                                 stb0899_read_regs(state, STB0899_NIRM, buf, 2);
1028                                 val = MAKEWORD16(buf[0], buf[1]);
1029
1030                                 *snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
1031                                 dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
1032                                         buf[0], buf[1], val, *snr);
1033                         }
1034                 }
1035                 break;
1036         case SYS_DVBS2:
1037                 if (internal->lock) {
1038                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_CNTRL1);
1039                         quant = STB0899_GETFIELD(UWP_ESN0_QUANT, reg);
1040                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, UWP_STAT2);
1041                         est = STB0899_GETFIELD(ESN0_EST, reg);
1042                         if (est == 1)
1043                                 val = 301; /* C/N = 30.1 dB */
1044                         else if (est == 2)
1045                                 val = 270; /* C/N = 27.0 dB */
1046                         else {
1047                                 /* quantn = 100 * log(quant^2) */
1048                                 quantn = stb0899_table_lookup(stb0899_quant_tab, ARRAY_SIZE(stb0899_quant_tab) - 1, quant * 100);
1049                                 /* estn = 100 * log(est) */
1050                                 estn = stb0899_table_lookup(stb0899_est_tab, ARRAY_SIZE(stb0899_est_tab) - 1, est);
1051                                 /* snr(dBm/10) = -10*(log(est)-log(quant^2)) => snr(dBm/10) = (100*log(quant^2)-100*log(est))/10 */
1052                                 val = (quantn - estn) / 10;
1053                         }
1054                         *snr = val;
1055                         dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
1056                                 quant, quantn, est, estn, val);
1057                 }
1058                 break;
1059         default:
1060                 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1061                 return -EINVAL;
1062         }
1063
1064         return 0;
1065 }
1066
1067 static int stb0899_read_status(struct dvb_frontend *fe, enum fe_status *status)
1068 {
1069         struct stb0899_state *state             = fe->demodulator_priv;
1070         struct stb0899_internal *internal       = &state->internal;
1071         u8 reg;
1072         *status = 0;
1073
1074         switch (state->delsys) {
1075         case SYS_DVBS:
1076         case SYS_DSS:
1077                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S/DSS");
1078                 if (internal->lock) {
1079                         reg  = stb0899_read_reg(state, STB0899_VSTATUS);
1080                         if (STB0899_GETFIELD(VSTATUS_LOCKEDVIT, reg)) {
1081                                 dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_CARRIER | FE_HAS_LOCK");
1082                                 *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_LOCK;
1083
1084                                 reg = stb0899_read_reg(state, STB0899_PLPARM);
1085                                 if (STB0899_GETFIELD(VITCURPUN, reg)) {
1086                                         dprintk(state->verbose, FE_DEBUG, 1, "--------> FE_HAS_VITERBI | FE_HAS_SYNC");
1087                                         *status |= FE_HAS_VITERBI | FE_HAS_SYNC;
1088                                         /* post process event */
1089                                         stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1090                                 }
1091                         }
1092                 }
1093                 break;
1094         case SYS_DVBS2:
1095                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery system DVB-S2");
1096                 if (internal->lock) {
1097                         reg = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_STAT2);
1098                         if (STB0899_GETFIELD(UWP_LOCK, reg) && STB0899_GETFIELD(CSM_LOCK, reg)) {
1099                                 *status |= FE_HAS_CARRIER;
1100                                 dprintk(state->verbose, FE_DEBUG, 1,
1101                                         "UWP & CSM Lock ! ---> DVB-S2 FE_HAS_CARRIER");
1102
1103                                 reg = stb0899_read_reg(state, STB0899_CFGPDELSTATUS1);
1104                                 if (STB0899_GETFIELD(CFGPDELSTATUS_LOCK, reg)) {
1105                                         *status |= FE_HAS_LOCK;
1106                                         dprintk(state->verbose, FE_DEBUG, 1,
1107                                                 "Packet Delineator Locked ! -----> DVB-S2 FE_HAS_LOCK");
1108
1109                                 }
1110                                 if (STB0899_GETFIELD(CONTINUOUS_STREAM, reg)) {
1111                                         *status |= FE_HAS_VITERBI;
1112                                         dprintk(state->verbose, FE_DEBUG, 1,
1113                                                 "Packet Delineator found VITERBI ! -----> DVB-S2 FE_HAS_VITERBI");
1114                                 }
1115                                 if (STB0899_GETFIELD(ACCEPTED_STREAM, reg)) {
1116                                         *status |= FE_HAS_SYNC;
1117                                         dprintk(state->verbose, FE_DEBUG, 1,
1118                                                 "Packet Delineator found SYNC ! -----> DVB-S2 FE_HAS_SYNC");
1119                                         /* post process event */
1120                                         stb0899_postproc(state, STB0899_POSTPROC_GPIO_LOCK, 1);
1121                                 }
1122                         }
1123                 }
1124                 break;
1125         default:
1126                 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1127                 return -EINVAL;
1128         }
1129         return 0;
1130 }
1131
1132 /*
1133  * stb0899_get_error
1134  * viterbi error for DVB-S/DSS
1135  * packet error for DVB-S2
1136  * Bit Error Rate or Packet Error Rate * 10 ^ 7
1137  */
1138 static int stb0899_read_ber(struct dvb_frontend *fe, u32 *ber)
1139 {
1140         struct stb0899_state *state             = fe->demodulator_priv;
1141         struct stb0899_internal *internal       = &state->internal;
1142
1143         u8  lsb, msb;
1144
1145         *ber = 0;
1146
1147         switch (state->delsys) {
1148         case SYS_DVBS:
1149         case SYS_DSS:
1150                 if (internal->lock) {
1151                         lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1152                         msb = stb0899_read_reg(state, STB0899_ECNT1M);
1153                         *ber = MAKEWORD16(msb, lsb);
1154                         /* Viterbi Check        */
1155                         if (STB0899_GETFIELD(VSTATUS_PRFVIT, internal->v_status)) {
1156                                 /* Error Rate           */
1157                                 *ber *= 9766;
1158                                 /* ber = ber * 10 ^ 7   */
1159                                 *ber /= (-1 + (1 << (2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1160                                 *ber /= 8;
1161                         }
1162                 }
1163                 break;
1164         case SYS_DVBS2:
1165                 if (internal->lock) {
1166                         lsb = stb0899_read_reg(state, STB0899_ECNT1L);
1167                         msb = stb0899_read_reg(state, STB0899_ECNT1M);
1168                         *ber = MAKEWORD16(msb, lsb);
1169                         /* ber = ber * 10 ^ 7   */
1170                         *ber *= 10000000;
1171                         *ber /= (-1 + (1 << (4 + 2 * STB0899_GETFIELD(NOE, internal->err_ctrl))));
1172                 }
1173                 break;
1174         default:
1175                 dprintk(state->verbose, FE_DEBUG, 1, "Unsupported delivery system");
1176                 return -EINVAL;
1177         }
1178
1179         return 0;
1180 }
1181
1182 static int stb0899_set_voltage(struct dvb_frontend *fe,
1183                                enum fe_sec_voltage voltage)
1184 {
1185         struct stb0899_state *state = fe->demodulator_priv;
1186
1187         switch (voltage) {
1188         case SEC_VOLTAGE_13:
1189                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1190                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1191                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x00);
1192                 break;
1193         case SEC_VOLTAGE_18:
1194                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x02);
1195                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x02);
1196                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1197                 break;
1198         case SEC_VOLTAGE_OFF:
1199                 stb0899_write_reg(state, STB0899_GPIO00CFG, 0x82);
1200                 stb0899_write_reg(state, STB0899_GPIO01CFG, 0x82);
1201                 stb0899_write_reg(state, STB0899_GPIO02CFG, 0x82);
1202                 break;
1203         default:
1204                 return -EINVAL;
1205         }
1206
1207         return 0;
1208 }
1209
1210 static int stb0899_set_tone(struct dvb_frontend *fe, enum fe_sec_tone_mode tone)
1211 {
1212         struct stb0899_state *state = fe->demodulator_priv;
1213         struct stb0899_internal *internal = &state->internal;
1214
1215         u8 div, reg;
1216
1217         /* wait for diseqc idle */
1218         if (stb0899_wait_diseqc_txidle(state, 100) < 0)
1219                 return -ETIMEDOUT;
1220
1221         switch (tone) {
1222         case SEC_TONE_ON:
1223                 div = (internal->master_clk / 100) / 5632;
1224                 div = (div + 5) / 10;
1225                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x66);
1226                 reg = stb0899_read_reg(state, STB0899_ACRPRESC);
1227                 STB0899_SETFIELD_VAL(ACRPRESC, reg, 0x03);
1228                 stb0899_write_reg(state, STB0899_ACRPRESC, reg);
1229                 stb0899_write_reg(state, STB0899_ACRDIV1, div);
1230                 break;
1231         case SEC_TONE_OFF:
1232                 stb0899_write_reg(state, STB0899_DISEQCOCFG, 0x20);
1233                 break;
1234         default:
1235                 return -EINVAL;
1236         }
1237         return 0;
1238 }
1239
1240 int stb0899_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
1241 {
1242         int i2c_stat;
1243         struct stb0899_state *state = fe->demodulator_priv;
1244
1245         i2c_stat = stb0899_read_reg(state, STB0899_I2CRPT);
1246         if (i2c_stat < 0)
1247                 goto err;
1248
1249         if (enable) {
1250                 dprintk(state->verbose, FE_DEBUG, 1, "Enabling I2C Repeater ...");
1251                 i2c_stat |=  STB0899_I2CTON;
1252                 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1253                         goto err;
1254         } else {
1255                 dprintk(state->verbose, FE_DEBUG, 1, "Disabling I2C Repeater ...");
1256                 i2c_stat &= ~STB0899_I2CTON;
1257                 if (stb0899_write_reg(state, STB0899_I2CRPT, i2c_stat) < 0)
1258                         goto err;
1259         }
1260         return 0;
1261 err:
1262         dprintk(state->verbose, FE_ERROR, 1, "I2C Repeater control failed");
1263         return -EREMOTEIO;
1264 }
1265
1266
1267 static inline void CONVERT32(u32 x, char *str)
1268 {
1269         *str++  = (x >> 24) & 0xff;
1270         *str++  = (x >> 16) & 0xff;
1271         *str++  = (x >>  8) & 0xff;
1272         *str++  = (x >>  0) & 0xff;
1273         *str    = '\0';
1274 }
1275
1276 static int stb0899_get_dev_id(struct stb0899_state *state)
1277 {
1278         u8 chip_id, release;
1279         u16 id;
1280         u32 demod_ver = 0, fec_ver = 0;
1281         char demod_str[5] = { 0 };
1282         char fec_str[5] = { 0 };
1283
1284         id = stb0899_read_reg(state, STB0899_DEV_ID);
1285         dprintk(state->verbose, FE_DEBUG, 1, "ID reg=[0x%02x]", id);
1286         chip_id = STB0899_GETFIELD(CHIP_ID, id);
1287         release = STB0899_GETFIELD(CHIP_REL, id);
1288
1289         dprintk(state->verbose, FE_ERROR, 1, "Device ID=[%d], Release=[%d]",
1290                 chip_id, release);
1291
1292         CONVERT32(STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_CORE_ID), (char *)&demod_str);
1293
1294         demod_ver = STB0899_READ_S2REG(STB0899_S2DEMOD, DMD_VERSION_ID);
1295         dprintk(state->verbose, FE_ERROR, 1, "Demodulator Core ID=[%s], Version=[%d]", (char *) &demod_str, demod_ver);
1296         CONVERT32(STB0899_READ_S2REG(STB0899_S2FEC, FEC_CORE_ID_REG), (char *)&fec_str);
1297         fec_ver = STB0899_READ_S2REG(STB0899_S2FEC, FEC_VER_ID_REG);
1298         if (! (chip_id > 0)) {
1299                 dprintk(state->verbose, FE_ERROR, 1, "couldn't find a STB 0899");
1300
1301                 return -ENODEV;
1302         }
1303         dprintk(state->verbose, FE_ERROR, 1, "FEC Core ID=[%s], Version=[%d]", (char*) &fec_str, fec_ver);
1304
1305         return 0;
1306 }
1307
1308 static void stb0899_set_delivery(struct stb0899_state *state)
1309 {
1310         u8 reg;
1311         u8 stop_clk[2];
1312
1313         stop_clk[0] = stb0899_read_reg(state, STB0899_STOPCLK1);
1314         stop_clk[1] = stb0899_read_reg(state, STB0899_STOPCLK2);
1315
1316         switch (state->delsys) {
1317         case SYS_DVBS:
1318                 dprintk(state->verbose, FE_DEBUG, 1, "Delivery System -- DVB-S");
1319                 /* FECM/Viterbi ON      */
1320                 reg = stb0899_read_reg(state, STB0899_FECM);
1321                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1322                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1323                 stb0899_write_reg(state, STB0899_FECM, reg);
1324
1325                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1326                 stb0899_write_reg(state, STB0899_TSULC, 0x40);
1327                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1328                 stb0899_write_reg(state, STB0899_TSLPL, 0x12);
1329
1330                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1331                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
1332                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1333
1334                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1335                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 1);
1336                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1337
1338                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1339                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1340
1341                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 1);
1342                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1343
1344                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1345                 break;
1346         case SYS_DVBS2:
1347                 /* FECM/Viterbi OFF     */
1348                 reg = stb0899_read_reg(state, STB0899_FECM);
1349                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 0);
1350                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 0);
1351                 stb0899_write_reg(state, STB0899_FECM, reg);
1352
1353                 stb0899_write_reg(state, STB0899_RSULC, 0xb1);
1354                 stb0899_write_reg(state, STB0899_TSULC, 0x42);
1355                 stb0899_write_reg(state, STB0899_RSLLC, 0x40);
1356                 stb0899_write_reg(state, STB0899_TSLPL, 0x02);
1357
1358                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1359                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 0);
1360                 stb0899_write_reg(state, STB0899_TSTRES, reg);
1361
1362                 STB0899_SETFIELD_VAL(STOP_CHK8PSK, stop_clk[0], 1);
1363                 STB0899_SETFIELD_VAL(STOP_CKFEC108, stop_clk[0], 0);
1364                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 0);
1365
1366                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 0);
1367                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 0);
1368
1369                 STB0899_SETFIELD_VAL(STOP_CKINTBUF216, stop_clk[0], 0);
1370                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1371
1372                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 0);
1373                 break;
1374         case SYS_DSS:
1375                 /* FECM/Viterbi ON      */
1376                 reg = stb0899_read_reg(state, STB0899_FECM);
1377                 STB0899_SETFIELD_VAL(FECM_RSVD0, reg, 1);
1378                 STB0899_SETFIELD_VAL(FECM_VITERBI_ON, reg, 1);
1379                 stb0899_write_reg(state, STB0899_FECM, reg);
1380
1381                 stb0899_write_reg(state, STB0899_RSULC, 0xa1);
1382                 stb0899_write_reg(state, STB0899_TSULC, 0x61);
1383                 stb0899_write_reg(state, STB0899_RSLLC, 0x42);
1384
1385                 reg = stb0899_read_reg(state, STB0899_TSTRES);
1386                 STB0899_SETFIELD_VAL(FRESLDPC, reg, 1);
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], 1);
1391                 STB0899_SETFIELD_VAL(STOP_CKFEC216, stop_clk[0], 1);
1392
1393                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN108, stop_clk[1], 1);
1394                 STB0899_SETFIELD_VAL(STOP_CKPKDLIN216, stop_clk[1], 1);
1395
1396                 STB0899_SETFIELD_VAL(STOP_CKCORE216, stop_clk[0], 0);
1397
1398                 STB0899_SETFIELD_VAL(STOP_CKS2DMD108, stop_clk[1], 1);
1399                 break;
1400         default:
1401                 dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1402                 break;
1403         }
1404         STB0899_SETFIELD_VAL(STOP_CKADCI108, stop_clk[0], 0);
1405         stb0899_write_regs(state, STB0899_STOPCLK1, stop_clk, 2);
1406 }
1407
1408 /*
1409  * stb0899_set_iterations
1410  * set the LDPC iteration scale function
1411  */
1412 static void stb0899_set_iterations(struct stb0899_state *state)
1413 {
1414         struct stb0899_internal *internal = &state->internal;
1415         struct stb0899_config *config = state->config;
1416
1417         s32 iter_scale;
1418         u32 reg;
1419
1420         iter_scale = 17 * (internal->master_clk / 1000);
1421         iter_scale += 410000;
1422         iter_scale /= (internal->srate / 1000000);
1423         iter_scale /= 1000;
1424
1425         if (iter_scale > config->ldpc_max_iter)
1426                 iter_scale = config->ldpc_max_iter;
1427
1428         reg = STB0899_READ_S2REG(STB0899_S2FEC, MAX_ITER);
1429         STB0899_SETFIELD_VAL(MAX_ITERATIONS, reg, iter_scale);
1430         stb0899_write_s2reg(state, STB0899_S2FEC, STB0899_BASE_MAX_ITER, STB0899_OFF0_MAX_ITER, reg);
1431 }
1432
1433 static enum dvbfe_search stb0899_search(struct dvb_frontend *fe)
1434 {
1435         struct stb0899_state *state = fe->demodulator_priv;
1436         struct stb0899_params *i_params = &state->params;
1437         struct stb0899_internal *internal = &state->internal;
1438         struct stb0899_config *config = state->config;
1439         struct dtv_frontend_properties *props = &fe->dtv_property_cache;
1440
1441         u32 SearchRange, gain;
1442
1443         i_params->freq  = props->frequency;
1444         i_params->srate = props->symbol_rate;
1445         state->delsys = props->delivery_system;
1446         dprintk(state->verbose, FE_DEBUG, 1, "delivery system=%d", state->delsys);
1447
1448         SearchRange = 10000000;
1449         dprintk(state->verbose, FE_DEBUG, 1, "Frequency=%d, Srate=%d", i_params->freq, i_params->srate);
1450         /* checking Search Range is meaningless for a fixed 3 Mhz                       */
1451         if (INRANGE(i_params->srate, 1000000, 45000000)) {
1452                 dprintk(state->verbose, FE_DEBUG, 1, "Parameters IN RANGE");
1453                 stb0899_set_delivery(state);
1454
1455                 if (state->config->tuner_set_rfsiggain) {
1456                         if (internal->srate > 15000000)
1457                                 gain =  8; /* 15Mb < srate < 45Mb, gain = 8dB   */
1458                         else if (internal->srate > 5000000)
1459                                 gain = 12; /*  5Mb < srate < 15Mb, gain = 12dB  */
1460                         else
1461                                 gain = 14; /*  1Mb < srate <  5Mb, gain = 14db  */
1462                         state->config->tuner_set_rfsiggain(fe, gain);
1463                 }
1464
1465                 if (i_params->srate <= 5000000)
1466                         stb0899_set_mclk(state, config->lo_clk);
1467                 else
1468                         stb0899_set_mclk(state, config->hi_clk);
1469
1470                 switch (state->delsys) {
1471                 case SYS_DVBS:
1472                 case SYS_DSS:
1473                         dprintk(state->verbose, FE_DEBUG, 1, "DVB-S delivery system");
1474                         internal->freq  = i_params->freq;
1475                         internal->srate = i_params->srate;
1476                         /*
1477                          * search = user search range +
1478                          *          500Khz +
1479                          *          2 * Tuner_step_size +
1480                          *          10% of the symbol rate
1481                          */
1482                         internal->srch_range    = SearchRange + 1500000 + (i_params->srate / 5);
1483                         internal->derot_percent = 30;
1484
1485                         /* What to do for tuners having no bandwidth setup ?    */
1486                         /* enable tuner I/O */
1487                         stb0899_i2c_gate_ctrl(&state->frontend, 1);
1488
1489                         if (state->config->tuner_set_bandwidth)
1490                                 state->config->tuner_set_bandwidth(fe, (13 * (stb0899_carr_width(state) + SearchRange)) / 10);
1491                         if (state->config->tuner_get_bandwidth)
1492                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1493
1494                         /* disable tuner I/O */
1495                         stb0899_i2c_gate_ctrl(&state->frontend, 0);
1496
1497                         /* Set DVB-S1 AGC               */
1498                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x11);
1499
1500                         /* Run the search algorithm     */
1501                         dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S search algo ..");
1502                         if (stb0899_dvbs_algo(state)    == RANGEOK) {
1503                                 internal->lock          = 1;
1504                                 dprintk(state->verbose, FE_DEBUG, 1,
1505                                         "-------------------------------------> DVB-S LOCK !");
1506
1507 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0x3d); /* Viterbi Errors     */
1508 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1509 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1510 //                              dprintk(state->verbose, FE_DEBUG, 1, "VSTATUS=0x%02x", internal->v_status);
1511 //                              dprintk(state->verbose, FE_DEBUG, 1, "ERR_CTRL=0x%02x", internal->err_ctrl);
1512
1513                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1514                         } else {
1515                                 internal->lock          = 0;
1516
1517                                 return DVBFE_ALGO_SEARCH_FAILED;
1518                         }
1519                         break;
1520                 case SYS_DVBS2:
1521                         internal->freq                  = i_params->freq;
1522                         internal->srate                 = i_params->srate;
1523                         internal->srch_range            = SearchRange;
1524
1525                         /* enable tuner I/O */
1526                         stb0899_i2c_gate_ctrl(&state->frontend, 1);
1527
1528                         if (state->config->tuner_set_bandwidth)
1529                                 state->config->tuner_set_bandwidth(fe, (stb0899_carr_width(state) + SearchRange));
1530                         if (state->config->tuner_get_bandwidth)
1531                                 state->config->tuner_get_bandwidth(fe, &internal->tuner_bw);
1532
1533                         /* disable tuner I/O */
1534                         stb0899_i2c_gate_ctrl(&state->frontend, 0);
1535
1536 //                      pParams->SpectralInv            = pSearch->IQ_Inversion;
1537
1538                         /* Set DVB-S2 AGC               */
1539                         stb0899_write_reg(state, STB0899_AGCRFCFG, 0x1c);
1540
1541                         /* Set IterScale =f(MCLK,SYMB)  */
1542                         stb0899_set_iterations(state);
1543
1544                         /* Run the search algorithm     */
1545                         dprintk(state->verbose, FE_DEBUG, 1, "running DVB-S2 search algo ..");
1546                         if (stb0899_dvbs2_algo(state)   == DVBS2_FEC_LOCK) {
1547                                 internal->lock          = 1;
1548                                 dprintk(state->verbose, FE_DEBUG, 1,
1549                                         "-------------------------------------> DVB-S2 LOCK !");
1550
1551 //                              stb0899_write_reg(state, STB0899_ERRCTRL1, 0xb6); /* Packet Errors      */
1552 //                              internal->v_status = stb0899_read_reg(state, STB0899_VSTATUS);
1553 //                              internal->err_ctrl = stb0899_read_reg(state, STB0899_ERRCTRL1);
1554
1555                                 return DVBFE_ALGO_SEARCH_SUCCESS;
1556                         } else {
1557                                 internal->lock          = 0;
1558
1559                                 return DVBFE_ALGO_SEARCH_FAILED;
1560                         }
1561                         break;
1562                 default:
1563                         dprintk(state->verbose, FE_ERROR, 1, "Unsupported delivery system");
1564                         return DVBFE_ALGO_SEARCH_INVALID;
1565                 }
1566         }
1567
1568         return DVBFE_ALGO_SEARCH_ERROR;
1569 }
1570
1571 static int stb0899_get_frontend(struct dvb_frontend *fe,
1572                                 struct dtv_frontend_properties *p)
1573 {
1574         struct stb0899_state *state             = fe->demodulator_priv;
1575         struct stb0899_internal *internal       = &state->internal;
1576
1577         dprintk(state->verbose, FE_DEBUG, 1, "Get params");
1578         p->symbol_rate = internal->srate;
1579         p->frequency = internal->freq;
1580
1581         return 0;
1582 }
1583
1584 static enum dvbfe_algo stb0899_frontend_algo(struct dvb_frontend *fe)
1585 {
1586         return DVBFE_ALGO_CUSTOM;
1587 }
1588
1589 static struct dvb_frontend_ops stb0899_ops = {
1590         .delsys = { SYS_DVBS, SYS_DVBS2, SYS_DSS },
1591         .info = {
1592                 .name                   = "STB0899 Multistandard",
1593                 .frequency_min          = 950000,
1594                 .frequency_max          = 2150000,
1595                 .frequency_stepsize     = 0,
1596                 .frequency_tolerance    = 0,
1597                 .symbol_rate_min        =  5000000,
1598                 .symbol_rate_max        = 45000000,
1599
1600                 .caps                   = FE_CAN_INVERSION_AUTO |
1601                                           FE_CAN_FEC_AUTO       |
1602                                           FE_CAN_2G_MODULATION  |
1603                                           FE_CAN_QPSK
1604         },
1605
1606         .release                        = stb0899_release,
1607         .init                           = stb0899_init,
1608         .sleep                          = stb0899_sleep,
1609 //      .wakeup                         = stb0899_wakeup,
1610
1611         .i2c_gate_ctrl                  = stb0899_i2c_gate_ctrl,
1612
1613         .get_frontend_algo              = stb0899_frontend_algo,
1614         .search                         = stb0899_search,
1615         .get_frontend                   = stb0899_get_frontend,
1616
1617
1618         .read_status                    = stb0899_read_status,
1619         .read_snr                       = stb0899_read_snr,
1620         .read_signal_strength           = stb0899_read_signal_strength,
1621         .read_ber                       = stb0899_read_ber,
1622
1623         .set_voltage                    = stb0899_set_voltage,
1624         .set_tone                       = stb0899_set_tone,
1625
1626         .diseqc_send_master_cmd         = stb0899_send_diseqc_msg,
1627         .diseqc_recv_slave_reply        = stb0899_recv_slave_reply,
1628         .diseqc_send_burst              = stb0899_send_diseqc_burst,
1629 };
1630
1631 struct dvb_frontend *stb0899_attach(struct stb0899_config *config, struct i2c_adapter *i2c)
1632 {
1633         struct stb0899_state *state = NULL;
1634
1635         state = kzalloc(sizeof (struct stb0899_state), GFP_KERNEL);
1636         if (state == NULL)
1637                 goto error;
1638
1639         state->verbose                          = &verbose;
1640         state->config                           = config;
1641         state->i2c                              = i2c;
1642         state->frontend.ops                     = stb0899_ops;
1643         state->frontend.demodulator_priv        = state;
1644         /* use configured inversion as default -- we'll later autodetect inversion */
1645         state->internal.inversion               = config->inversion;
1646
1647         stb0899_wakeup(&state->frontend);
1648         if (stb0899_get_dev_id(state) == -ENODEV) {
1649                 printk("%s: Exiting .. !\n", __func__);
1650                 goto error;
1651         }
1652
1653         printk("%s: Attaching STB0899 \n", __func__);
1654         return &state->frontend;
1655
1656 error:
1657         kfree(state);
1658         return NULL;
1659 }
1660 EXPORT_SYMBOL(stb0899_attach);
1661 MODULE_PARM_DESC(verbose, "Set Verbosity level");
1662 MODULE_AUTHOR("Manu Abraham");
1663 MODULE_DESCRIPTION("STB0899 Multi-Std frontend");
1664 MODULE_LICENSE("GPL");