drivers/media/dvb-frontends/stb6100.c

   1 /*
   2         STB6100 Silicon Tuner
   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/slab.h>
  26 #include <linux/string.h>
  27
  28 #include "dvb_frontend.h"
  29 #include "stb6100.h"
  30
  31 static unsigned int verbose;
  32 module_param(verbose, int, 0644);
  33
  34 /* Max transfer size done by I2C transfer functions */
  35 #define MAX_XFER_SIZE  64
  36
  37 #define FE_ERROR                0
  38 #define FE_NOTICE               1
  39 #define FE_INFO                 2
  40 #define FE_DEBUG                3
  41
  42 #define dprintk(x, y, z, format, arg...) do {                                           \
  43         if (z) {                                                                        \
  44                 if      ((x > FE_ERROR) && (x > y))                                     \
  45                         printk(KERN_ERR "%s: " format "\n", __func__ , ##arg);          \
  46                 else if ((x > FE_NOTICE) && (x > y))                                    \
  47                         printk(KERN_NOTICE "%s: " format "\n", __func__ , ##arg);       \
  48                 else if ((x > FE_INFO) && (x > y))                                      \
  49                         printk(KERN_INFO "%s: " format "\n", __func__ , ##arg);         \
  50                 else if ((x > FE_DEBUG) && (x > y))                                     \
  51                         printk(KERN_DEBUG "%s: " format "\n", __func__ , ##arg);        \
  52         } else {                                                                        \
  53                 if (x > y)                                                              \
  54                         printk(format, ##arg);                                          \
  55         }                                                                               \
  56 } while (0)
  57
  58 struct stb6100_lkup {
  59         u32 val_low;
  60         u32 val_high;
  61         u8   reg;
  62 };
  63
  64 static const struct stb6100_lkup lkup[] = {
  65         {       0,  950000, 0x0a },
  66         {  950000, 1000000, 0x0a },
  67         { 1000000, 1075000, 0x0c },
  68         { 1075000, 1200000, 0x00 },
  69         { 1200000, 1300000, 0x01 },
  70         { 1300000, 1370000, 0x02 },
  71         { 1370000, 1470000, 0x04 },
  72         { 1470000, 1530000, 0x05 },
  73         { 1530000, 1650000, 0x06 },
  74         { 1650000, 1800000, 0x08 },
  75         { 1800000, 1950000, 0x0a },
  76         { 1950000, 2150000, 0x0c },
  77         { 2150000, 9999999, 0x0c },
  78         {       0,       0, 0x00 }
  79 };
  80
  81 /* Register names for easy debugging.   */
  82 static const char *stb6100_regnames[] = {
  83         [STB6100_LD]            = "LD",
  84         [STB6100_VCO]           = "VCO",
  85         [STB6100_NI]            = "NI",
  86         [STB6100_NF_LSB]        = "NF",
  87         [STB6100_K]             = "K",
  88         [STB6100_G]             = "G",
  89         [STB6100_F]             = "F",
  90         [STB6100_DLB]           = "DLB",
  91         [STB6100_TEST1]         = "TEST1",
  92         [STB6100_FCCK]          = "FCCK",
  93         [STB6100_LPEN]          = "LPEN",
  94         [STB6100_TEST3]         = "TEST3",
  95 };
  96
  97 /* Template for normalisation, i.e. setting unused or undocumented
  98  * bits as required according to the documentation.
  99  */
 100 struct stb6100_regmask {
 101         u8 mask;
 102         u8 set;
 103 };
 104
 105 static const struct stb6100_regmask stb6100_template[] = {
 106         [STB6100_LD]            = { 0xff, 0x00 },
 107         [STB6100_VCO]           = { 0xff, 0x00 },
 108         [STB6100_NI]            = { 0xff, 0x00 },
 109         [STB6100_NF_LSB]        = { 0xff, 0x00 },
 110         [STB6100_K]             = { 0xc7, 0x38 },
 111         [STB6100_G]             = { 0xef, 0x10 },
 112         [STB6100_F]             = { 0x1f, 0xc0 },
 113         [STB6100_DLB]           = { 0x38, 0xc4 },
 114         [STB6100_TEST1]         = { 0x00, 0x8f },
 115         [STB6100_FCCK]          = { 0x40, 0x0d },
 116         [STB6100_LPEN]          = { 0xf0, 0x0b },
 117         [STB6100_TEST3]         = { 0x00, 0xde },
 118 };
 119
 120 /*
 121  * Currently unused. Some boards might need it in the future
 122  */
 123 static inline void stb6100_normalise_regs(u8 regs[])
 124 {
 125         int i;
 126
 127         for (i = 0; i < STB6100_NUMREGS; i++)
 128                 regs[i] = (regs[i] & stb6100_template[i].mask) | stb6100_template[i].set;
 129 }
 130
 131 static int stb6100_read_regs(struct stb6100_state *state, u8 regs[])
 132 {
 133         int rc;
 134         struct i2c_msg msg = {
 135                 .addr   = state->config->tuner_address,
 136                 .flags  = I2C_M_RD,
 137                 .buf    = regs,
 138                 .len    = STB6100_NUMREGS
 139         };
 140
 141         rc = i2c_transfer(state->i2c, &msg, 1);
 142         if (unlikely(rc != 1)) {
 143                 dprintk(verbose, FE_ERROR, 1, "Read (0x%x) err, rc=[%d]",
 144                         state->config->tuner_address, rc);
 145
 146                 return -EREMOTEIO;
 147         }
 148         if (unlikely(verbose > FE_DEBUG)) {
 149                 int i;
 150
 151                 dprintk(verbose, FE_DEBUG, 1, "    Read from 0x%02x", state->config->tuner_address);
 152                 for (i = 0; i < STB6100_NUMREGS; i++)
 153                         dprintk(verbose, FE_DEBUG, 1, "        %s: 0x%02x", stb6100_regnames[i], regs[i]);
 154         }
 155         return 0;
 156 }
 157
 158 static int stb6100_read_reg(struct stb6100_state *state, u8 reg)
 159 {
 160         u8 regs[STB6100_NUMREGS];
 161
 162         struct i2c_msg msg = {
 163                 .addr   = state->config->tuner_address + reg,
 164                 .flags  = I2C_M_RD,
 165                 .buf    = regs,
 166                 .len    = 1
 167         };
 168
 169         i2c_transfer(state->i2c, &msg, 1);
 170
 171         if (unlikely(reg >= STB6100_NUMREGS)) {
 172                 dprintk(verbose, FE_ERROR, 1, "Invalid register offset 0x%x", reg);
 173                 return -EINVAL;
 174         }
 175         if (unlikely(verbose > FE_DEBUG)) {
 176                 dprintk(verbose, FE_DEBUG, 1, "    Read from 0x%02x", state->config->tuner_address);
 177                 dprintk(verbose, FE_DEBUG, 1, "        %s: 0x%02x", stb6100_regnames[reg], regs[0]);
 178         }
 179
 180         return (unsigned int)regs[0];
 181 }
 182
 183 static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int start, int len)
 184 {
 185         int rc;
 186         u8 cmdbuf[MAX_XFER_SIZE];
 187         struct i2c_msg msg = {
 188                 .addr   = state->config->tuner_address,
 189                 .flags  = 0,
 190                 .buf    = cmdbuf,
 191                 .len    = len + 1
 192         };
 193
 194         if (1 + len > sizeof(cmdbuf)) {
 195                 printk(KERN_WARNING
 196                        "%s: i2c wr: len=%d is too big!\n",
 197                        KBUILD_MODNAME, len);
 198                 return -EINVAL;
 199         }
 200
 201         if (unlikely(start < 1 || start + len > STB6100_NUMREGS)) {
 202                 dprintk(verbose, FE_ERROR, 1, "Invalid register range %d:%d",
 203                         start, len);
 204                 return -EINVAL;
 205         }
 206         memcpy(&cmdbuf[1], buf, len);
 207         cmdbuf[0] = start;
 208
 209         if (unlikely(verbose > FE_DEBUG)) {
 210                 int i;
 211
 212                 dprintk(verbose, FE_DEBUG, 1, "    Write @ 0x%02x: [%d:%d]", state->config->tuner_address, start, len);
 213                 for (i = 0; i < len; i++)
 214                         dprintk(verbose, FE_DEBUG, 1, "        %s: 0x%02x", stb6100_regnames[start + i], buf[i]);
 215         }
 216         rc = i2c_transfer(state->i2c, &msg, 1);
 217         if (unlikely(rc != 1)) {
 218                 dprintk(verbose, FE_ERROR, 1, "(0x%x) write err [%d:%d], rc=[%d]",
 219                         (unsigned int)state->config->tuner_address, start, len, rc);
 220                 return -EREMOTEIO;
 221         }
 222         return 0;
 223 }
 224
 225 static int stb6100_write_reg(struct stb6100_state *state, u8 reg, u8 data)
 226 {
 227         if (unlikely(reg >= STB6100_NUMREGS)) {
 228                 dprintk(verbose, FE_ERROR, 1, "Invalid register offset 0x%x", reg);
 229                 return -EREMOTEIO;
 230         }
 231         data = (data & stb6100_template[reg].mask) | stb6100_template[reg].set;
 232         return stb6100_write_reg_range(state, &data, reg, 1);
 233 }
 234
 235
 236 static int stb6100_get_status(struct dvb_frontend *fe, u32 *status)
 237 {
 238         int rc;
 239         struct stb6100_state *state = fe->tuner_priv;
 240
 241         rc = stb6100_read_reg(state, STB6100_LD);
 242         if (rc < 0) {
 243                 dprintk(verbose, FE_ERROR, 1, "%s failed", __func__);
 244                 return rc;
 245         }
 246         return (rc & STB6100_LD_LOCK) ? TUNER_STATUS_LOCKED : 0;
 247 }
 248
 249 static int stb6100_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 250 {
 251         int rc;
 252         u8 f;
 253         u32 bw;
 254         struct stb6100_state *state = fe->tuner_priv;
 255
 256         rc = stb6100_read_reg(state, STB6100_F);
 257         if (rc < 0)
 258                 return rc;
 259         f = rc & STB6100_F_F;
 260
 261         bw = (f + 5) * 2000;    /* x2 for ZIF   */
 262
 263         *bandwidth = state->bandwidth = bw * 1000;
 264         dprintk(verbose, FE_DEBUG, 1, "bandwidth = %u Hz", state->bandwidth);
 265         return 0;
 266 }
 267
 268 static int stb6100_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth)
 269 {
 270         u32 tmp;
 271         int rc;
 272         struct stb6100_state *state = fe->tuner_priv;
 273
 274         dprintk(verbose, FE_DEBUG, 1, "set bandwidth to %u Hz", bandwidth);
 275
 276         bandwidth /= 2; /* ZIF */
 277
 278         if (bandwidth >= 36000000)      /* F[4:0] BW/2 max =31+5=36 mhz for F=31        */
 279                 tmp = 31;
 280         else if (bandwidth <= 5000000)  /* bw/2 min = 5Mhz for F=0                      */
 281                 tmp = 0;
 282         else                            /* if 5 < bw/2 < 36                             */
 283                 tmp = (bandwidth + 500000) / 1000000 - 5;
 284
 285         /* Turn on LPF bandwidth setting clock control,
 286          * set bandwidth, wait 10ms, turn off.
 287          */
 288         rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d | STB6100_FCCK_FCCK);
 289         if (rc < 0)
 290                 return rc;
 291         rc = stb6100_write_reg(state, STB6100_F, 0xc0 | tmp);
 292         if (rc < 0)
 293                 return rc;
 294
 295         msleep(5);  /*  This is dangerous as another (related) thread may start */
 296
 297         rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d);
 298         if (rc < 0)
 299                 return rc;
 300
 301         msleep(10);  /*  This is dangerous as another (related) thread may start */
 302
 303         return 0;
 304 }
 305
 306 static int stb6100_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 307 {
 308         int rc;
 309         u32 nint, nfrac, fvco;
 310         int psd2, odiv;
 311         struct stb6100_state *state = fe->tuner_priv;
 312         u8 regs[STB6100_NUMREGS];
 313
 314         rc = stb6100_read_regs(state, regs);
 315         if (rc < 0)
 316                 return rc;
 317
 318         odiv = (regs[STB6100_VCO] & STB6100_VCO_ODIV) >> STB6100_VCO_ODIV_SHIFT;
 319         psd2 = (regs[STB6100_K] & STB6100_K_PSD2) >> STB6100_K_PSD2_SHIFT;
 320         nint = regs[STB6100_NI];
 321         nfrac = ((regs[STB6100_K] & STB6100_K_NF_MSB) << 8) | regs[STB6100_NF_LSB];
 322         fvco = (nfrac * state->reference >> (9 - psd2)) + (nint * state->reference << psd2);
 323         *frequency = state->frequency = fvco >> (odiv + 1);
 324
 325         dprintk(verbose, FE_DEBUG, 1,
 326                 "frequency = %u kHz, odiv = %u, psd2 = %u, fxtal = %u kHz, fvco = %u kHz, N(I) = %u, N(F) = %u",
 327                 state->frequency, odiv, psd2, state->reference, fvco, nint, nfrac);
 328         return 0;
 329 }
 330
 331
 332 static int stb6100_set_frequency(struct dvb_frontend *fe, u32 frequency)
 333 {
 334         int rc;
 335         const struct stb6100_lkup *ptr;
 336         struct stb6100_state *state = fe->tuner_priv;
 337         struct dtv_frontend_properties *p = &fe->dtv_property_cache;
 338
 339         u32 srate = 0, fvco, nint, nfrac;
 340         u8 regs[STB6100_NUMREGS];
 341         u8 g, psd2, odiv;
 342
 343         dprintk(verbose, FE_DEBUG, 1, "Version 2010-8-14 13:51");
 344
 345         if (fe->ops.get_frontend) {
 346                 dprintk(verbose, FE_DEBUG, 1, "Get frontend parameters");
 347                 fe->ops.get_frontend(fe, p);
 348         }
 349         srate = p->symbol_rate;
 350
 351         /* Set up tuner cleanly, LPF calibration on */
 352         rc = stb6100_write_reg(state, STB6100_FCCK, 0x4d | STB6100_FCCK_FCCK);
 353         if (rc < 0)
 354                 return rc;  /* allow LPF calibration */
 355
 356         /* PLL Loop disabled, bias on, VCO on, synth on */
 357         regs[STB6100_LPEN] = 0xeb;
 358         rc = stb6100_write_reg(state, STB6100_LPEN, regs[STB6100_LPEN]);
 359         if (rc < 0)
 360                 return rc;
 361
 362         /* Program the registers with their data values */
 363
 364         /* VCO divide ratio (LO divide ratio, VCO prescaler enable).    */
 365         if (frequency <= 1075000)
 366                 odiv = 1;
 367         else
 368                 odiv = 0;
 369
 370         /* VCO enabled, search clock off as per LL3.7, 3.4.1 */
 371         regs[STB6100_VCO] = 0xe0 | (odiv << STB6100_VCO_ODIV_SHIFT);
 372
 373         /* OSM  */
 374         for (ptr = lkup;
 375              (ptr->val_high != 0) && !CHKRANGE(frequency, ptr->val_low, ptr->val_high);
 376              ptr++);
 377
 378         if (ptr->val_high == 0) {
 379                 printk(KERN_ERR "%s: frequency out of range: %u kHz\n", __func__, frequency);
 380                 return -EINVAL;
 381         }
 382         regs[STB6100_VCO] = (regs[STB6100_VCO] & ~STB6100_VCO_OSM) | ptr->reg;
 383         rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
 384         if (rc < 0)
 385                 return rc;
 386
 387         if ((frequency > 1075000) && (frequency <= 1325000))
 388                 psd2 = 0;
 389         else
 390                 psd2 = 1;
 391         /* F(VCO) = F(LO) * (ODIV == 0 ? 2 : 4)                 */
 392         fvco = frequency << (1 + odiv);
 393         /* N(I) = floor(f(VCO) / (f(XTAL) * (PSD2 ? 2 : 1)))    */
 394         nint = fvco / (state->reference << psd2);
 395         /* N(F) = round(f(VCO) / f(XTAL) * (PSD2 ? 2 : 1) - N(I)) * 2 ^ 9       */
 396         nfrac = DIV_ROUND_CLOSEST((fvco - (nint * state->reference << psd2))
 397                                          << (9 - psd2), state->reference);
 398
 399         /* NI */
 400         regs[STB6100_NI] = nint;
 401         rc = stb6100_write_reg(state, STB6100_NI, regs[STB6100_NI]);
 402         if (rc < 0)
 403                 return rc;
 404
 405         /* NF */
 406         regs[STB6100_NF_LSB] = nfrac;
 407         rc = stb6100_write_reg(state, STB6100_NF_LSB, regs[STB6100_NF_LSB]);
 408         if (rc < 0)
 409                 return rc;
 410
 411         /* K */
 412         regs[STB6100_K] = (0x38 & ~STB6100_K_PSD2) | (psd2 << STB6100_K_PSD2_SHIFT);
 413         regs[STB6100_K] = (regs[STB6100_K] & ~STB6100_K_NF_MSB) | ((nfrac >> 8) & STB6100_K_NF_MSB);
 414         rc = stb6100_write_reg(state, STB6100_K, regs[STB6100_K]);
 415         if (rc < 0)
 416                 return rc;
 417
 418         /* G Baseband gain. */
 419         if (srate >= 15000000)
 420                 g = 9;  /*  +4 dB */
 421         else if (srate >= 5000000)
 422                 g = 11; /*  +8 dB */
 423         else
 424                 g = 14; /* +14 dB */
 425
 426         regs[STB6100_G] = (0x10 & ~STB6100_G_G) | g;
 427         regs[STB6100_G] &= ~STB6100_G_GCT; /* mask GCT */
 428         regs[STB6100_G] |= (1 << 5); /* 2Vp-p Mode */
 429         rc = stb6100_write_reg(state, STB6100_G, regs[STB6100_G]);
 430         if (rc < 0)
 431                 return rc;
 432
 433         /* F we don't write as it is set up in BW set */
 434
 435         /* DLB set DC servo loop BW to 160Hz (LLA 3.8 / 2.1) */
 436         regs[STB6100_DLB] = 0xcc;
 437         rc = stb6100_write_reg(state, STB6100_DLB, regs[STB6100_DLB]);
 438         if (rc < 0)
 439                 return rc;
 440
 441         dprintk(verbose, FE_DEBUG, 1,
 442                 "frequency = %u, srate = %u, g = %u, odiv = %u, psd2 = %u, fxtal = %u, osm = %u, fvco = %u, N(I) = %u, N(F) = %u",
 443                 frequency, srate, (unsigned int)g, (unsigned int)odiv,
 444                 (unsigned int)psd2, state->reference,
 445                 ptr->reg, fvco, nint, nfrac);
 446
 447         /* Set up the test registers */
 448         regs[STB6100_TEST1] = 0x8f;
 449         rc = stb6100_write_reg(state, STB6100_TEST1, regs[STB6100_TEST1]);
 450         if (rc < 0)
 451                 return rc;
 452         regs[STB6100_TEST3] = 0xde;
 453         rc = stb6100_write_reg(state, STB6100_TEST3, regs[STB6100_TEST3]);
 454         if (rc < 0)
 455                 return rc;
 456
 457         /* Bring up tuner according to LLA 3.7 3.4.1, step 2 */
 458         regs[STB6100_LPEN] = 0xfb; /* PLL Loop enabled, bias on, VCO on, synth on */
 459         rc = stb6100_write_reg(state, STB6100_LPEN, regs[STB6100_LPEN]);
 460         if (rc < 0)
 461                 return rc;
 462
 463         msleep(2);
 464
 465         /* Bring up tuner according to LLA 3.7 3.4.1, step 3 */
 466         regs[STB6100_VCO] &= ~STB6100_VCO_OCK;          /* VCO fast search              */
 467         rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
 468         if (rc < 0)
 469                 return rc;
 470
 471         msleep(10);  /*  This is dangerous as another (related) thread may start */ /* wait for LO to lock */
 472
 473         regs[STB6100_VCO] &= ~STB6100_VCO_OSCH;         /* vco search disabled          */
 474         regs[STB6100_VCO] |= STB6100_VCO_OCK;           /* search clock off             */
 475         rc = stb6100_write_reg(state, STB6100_VCO, regs[STB6100_VCO]);
 476         if (rc < 0)
 477                 return rc;
 478
 479         rc = stb6100_write_reg(state, STB6100_FCCK, 0x0d);
 480         if (rc < 0)
 481                 return rc;  /* Stop LPF calibration */
 482
 483         msleep(10);  /*  This is dangerous as another (related) thread may start */
 484                      /* wait for stabilisation, (should not be necessary)               */
 485         return 0;
 486 }
 487
 488 static int stb6100_sleep(struct dvb_frontend *fe)
 489 {
 490         /* TODO: power down     */
 491         return 0;
 492 }
 493
 494 static int stb6100_init(struct dvb_frontend *fe)
 495 {
 496         struct stb6100_state *state = fe->tuner_priv;
 497         int refclk = 27000000; /* Hz */
 498
 499         /*
 500          * iqsense = 1
 501          * tunerstep = 125000
 502          */
 503         state->bandwidth        = 36000000;             /* Hz   */
 504         state->reference        = refclk / 1000;        /* kHz  */
 505
 506         /* Set default bandwidth. Modified, PN 13-May-10        */
 507         return 0;
 508 }
 509
 510 static int stb6100_set_params(struct dvb_frontend *fe)
 511 {
 512         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 513
 514         if (c->frequency > 0)
 515                 stb6100_set_frequency(fe, c->frequency);
 516
 517         if (c->bandwidth_hz > 0)
 518                 stb6100_set_bandwidth(fe, c->bandwidth_hz);
 519
 520         return 0;
 521 }
 522
 523 static const struct dvb_tuner_ops stb6100_ops = {
 524         .info = {
 525                 .name                   = "STB6100 Silicon Tuner",
 526                 .frequency_min          = 950000,
 527                 .frequency_max          = 2150000,
 528                 .frequency_step         = 0,
 529         },
 530
 531         .init           = stb6100_init,
 532         .sleep          = stb6100_sleep,
 533         .get_status     = stb6100_get_status,
 534         .set_params     = stb6100_set_params,
 535         .get_frequency  = stb6100_get_frequency,
 536         .get_bandwidth  = stb6100_get_bandwidth,
 537         .release        = dvb_tuner_simple_release
 538 };
 539
 540 struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe,
 541                                     const struct stb6100_config *config,
 542                                     struct i2c_adapter *i2c)
 543 {
 544         struct stb6100_state *state = NULL;
 545
 546         state = kzalloc(sizeof (struct stb6100_state), GFP_KERNEL);
 547         if (!state)
 548                 return NULL;
 549
 550         state->config           = config;
 551         state->i2c              = i2c;
 552         state->frontend         = fe;
 553         state->reference        = config->refclock / 1000; /* kHz */
 554         fe->tuner_priv          = state;
 555         fe->ops.tuner_ops       = stb6100_ops;
 556
 557         printk("%s: Attaching STB6100 \n", __func__);
 558         return fe;
 559 }
 560
 561 EXPORT_SYMBOL(stb6100_attach);
 562 MODULE_PARM_DESC(verbose, "Set Verbosity level");
 563
 564 MODULE_AUTHOR("Manu Abraham");
 565 MODULE_DESCRIPTION("STB6100 Silicon tuner");
 566 MODULE_LICENSE("GPL");