drivers/media/dvb-frontends/dvb-pll.c

   1 /*
   2  * descriptions + helper functions for simple dvb plls.
   3  *
   4  * (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  */
  16
  17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19 #include <linux/slab.h>
  20 #include <linux/module.h>
  21 #include <linux/dvb/frontend.h>
  22 #include <asm/types.h>
  23
  24 #include "dvb-pll.h"
  25
  26 #define dprintk(fmt, arg...) \
  27         printk(KERN_DEBUG pr_fmt("%s: " fmt), __func__, ##arg)
  28
  29 struct dvb_pll_priv {
  30         /* pll number */
  31         int nr;
  32
  33         /* i2c details */
  34         int pll_i2c_address;
  35         struct i2c_adapter *i2c;
  36
  37         /* the PLL descriptor */
  38         const struct dvb_pll_desc *pll_desc;
  39
  40         /* cached frequency/bandwidth */
  41         u32 frequency;
  42         u32 bandwidth;
  43 };
  44
  45 #define DVB_PLL_MAX 64
  46
  47 static unsigned int dvb_pll_devcount;
  48
  49 static int debug;
  50 module_param(debug, int, 0644);
  51 MODULE_PARM_DESC(debug, "enable verbose debug messages");
  52
  53 static unsigned int id[DVB_PLL_MAX] =
  54         { [ 0 ... (DVB_PLL_MAX-1) ] = DVB_PLL_UNDEFINED };
  55 module_param_array(id, int, NULL, 0644);
  56 MODULE_PARM_DESC(id, "force pll id to use (DEBUG ONLY)");
  57
  58 /* ----------------------------------------------------------- */
  59
  60 struct dvb_pll_desc {
  61         const char *name;
  62         u32  min;
  63         u32  max;
  64         u32  iffreq;
  65         void (*set)(struct dvb_frontend *fe, u8 *buf);
  66         u8   *initdata;
  67         u8   *initdata2;
  68         u8   *sleepdata;
  69         int  count;
  70         struct {
  71                 u32 limit;
  72                 u32 stepsize;
  73                 u8  config;
  74                 u8  cb;
  75         } entries[];
  76 };
  77
  78 /* ----------------------------------------------------------- */
  79 /* descriptions                                                */
  80
  81 static const struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
  82         .name  = "Thomson dtt7579",
  83         .min   = 177000000,
  84         .max   = 858000000,
  85         .iffreq= 36166667,
  86         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
  87         .count = 4,
  88         .entries = {
  89                 {  443250000, 166667, 0xb4, 0x02 },
  90                 {  542000000, 166667, 0xb4, 0x08 },
  91                 {  771000000, 166667, 0xbc, 0x08 },
  92                 {  999999999, 166667, 0xf4, 0x08 },
  93         },
  94 };
  95
  96 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf)
  97 {
  98         u32 bw = fe->dtv_property_cache.bandwidth_hz;
  99         if (bw == 7000000)
 100                 buf[3] |= 0x10;
 101 }
 102
 103 static const struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
 104         .name  = "Thomson dtt759x",
 105         .min   = 177000000,
 106         .max   = 896000000,
 107         .set   = thomson_dtt759x_bw,
 108         .iffreq= 36166667,
 109         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
 110         .count = 5,
 111         .entries = {
 112                 {  264000000, 166667, 0xb4, 0x02 },
 113                 {  470000000, 166667, 0xbc, 0x02 },
 114                 {  735000000, 166667, 0xbc, 0x08 },
 115                 {  835000000, 166667, 0xf4, 0x08 },
 116                 {  999999999, 166667, 0xfc, 0x08 },
 117         },
 118 };
 119
 120 static void thomson_dtt7520x_bw(struct dvb_frontend *fe, u8 *buf)
 121 {
 122         u32 bw = fe->dtv_property_cache.bandwidth_hz;
 123         if (bw == 8000000)
 124                 buf[3] ^= 0x10;
 125 }
 126
 127 static const struct dvb_pll_desc dvb_pll_thomson_dtt7520x = {
 128         .name  = "Thomson dtt7520x",
 129         .min   = 185000000,
 130         .max   = 900000000,
 131         .set   = thomson_dtt7520x_bw,
 132         .iffreq = 36166667,
 133         .count = 7,
 134         .entries = {
 135                 {  305000000, 166667, 0xb4, 0x12 },
 136                 {  405000000, 166667, 0xbc, 0x12 },
 137                 {  445000000, 166667, 0xbc, 0x12 },
 138                 {  465000000, 166667, 0xf4, 0x18 },
 139                 {  735000000, 166667, 0xfc, 0x18 },
 140                 {  835000000, 166667, 0xbc, 0x18 },
 141                 {  999999999, 166667, 0xfc, 0x18 },
 142         },
 143 };
 144
 145 static const struct dvb_pll_desc dvb_pll_lg_z201 = {
 146         .name  = "LG z201",
 147         .min   = 174000000,
 148         .max   = 862000000,
 149         .iffreq= 36166667,
 150         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
 151         .count = 5,
 152         .entries = {
 153                 {  157500000, 166667, 0xbc, 0x01 },
 154                 {  443250000, 166667, 0xbc, 0x02 },
 155                 {  542000000, 166667, 0xbc, 0x04 },
 156                 {  830000000, 166667, 0xf4, 0x04 },
 157                 {  999999999, 166667, 0xfc, 0x04 },
 158         },
 159 };
 160
 161 static const struct dvb_pll_desc dvb_pll_unknown_1 = {
 162         .name  = "unknown 1", /* used by dntv live dvb-t */
 163         .min   = 174000000,
 164         .max   = 862000000,
 165         .iffreq= 36166667,
 166         .count = 9,
 167         .entries = {
 168                 {  150000000, 166667, 0xb4, 0x01 },
 169                 {  173000000, 166667, 0xbc, 0x01 },
 170                 {  250000000, 166667, 0xb4, 0x02 },
 171                 {  400000000, 166667, 0xbc, 0x02 },
 172                 {  420000000, 166667, 0xf4, 0x02 },
 173                 {  470000000, 166667, 0xfc, 0x02 },
 174                 {  600000000, 166667, 0xbc, 0x08 },
 175                 {  730000000, 166667, 0xf4, 0x08 },
 176                 {  999999999, 166667, 0xfc, 0x08 },
 177         },
 178 };
 179
 180 /* Infineon TUA6010XS
 181  * used in Thomson Cable Tuner
 182  */
 183 static const struct dvb_pll_desc dvb_pll_tua6010xs = {
 184         .name  = "Infineon TUA6010XS",
 185         .min   =  44250000,
 186         .max   = 858000000,
 187         .iffreq= 36125000,
 188         .count = 3,
 189         .entries = {
 190                 {  115750000, 62500, 0x8e, 0x03 },
 191                 {  403250000, 62500, 0x8e, 0x06 },
 192                 {  999999999, 62500, 0x8e, 0x85 },
 193         },
 194 };
 195
 196 /* Panasonic env57h1xd5 (some Philips PLL ?) */
 197 static const struct dvb_pll_desc dvb_pll_env57h1xd5 = {
 198         .name  = "Panasonic ENV57H1XD5",
 199         .min   =  44250000,
 200         .max   = 858000000,
 201         .iffreq= 36125000,
 202         .count = 4,
 203         .entries = {
 204                 {  153000000, 166667, 0xc2, 0x41 },
 205                 {  470000000, 166667, 0xc2, 0x42 },
 206                 {  526000000, 166667, 0xc2, 0x84 },
 207                 {  999999999, 166667, 0xc2, 0xa4 },
 208         },
 209 };
 210
 211 /* Philips TDA6650/TDA6651
 212  * used in Panasonic ENV77H11D5
 213  */
 214 static void tda665x_bw(struct dvb_frontend *fe, u8 *buf)
 215 {
 216         u32 bw = fe->dtv_property_cache.bandwidth_hz;
 217         if (bw == 8000000)
 218                 buf[3] |= 0x08;
 219 }
 220
 221 static const struct dvb_pll_desc dvb_pll_tda665x = {
 222         .name  = "Philips TDA6650/TDA6651",
 223         .min   =  44250000,
 224         .max   = 858000000,
 225         .set   = tda665x_bw,
 226         .iffreq= 36166667,
 227         .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
 228         .count = 12,
 229         .entries = {
 230                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
 231                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 232                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 233                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 234                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
 235                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
 236                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 237                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 238                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
 239                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
 240                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 241                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
 242         }
 243 };
 244
 245 /* Infineon TUA6034
 246  * used in LG TDTP E102P
 247  */
 248 static void tua6034_bw(struct dvb_frontend *fe, u8 *buf)
 249 {
 250         u32 bw = fe->dtv_property_cache.bandwidth_hz;
 251         if (bw == 7000000)
 252                 buf[3] |= 0x08;
 253 }
 254
 255 static const struct dvb_pll_desc dvb_pll_tua6034 = {
 256         .name  = "Infineon TUA6034",
 257         .min   =  44250000,
 258         .max   = 858000000,
 259         .iffreq= 36166667,
 260         .count = 3,
 261         .set   = tua6034_bw,
 262         .entries = {
 263                 {  174500000, 62500, 0xce, 0x01 },
 264                 {  230000000, 62500, 0xce, 0x02 },
 265                 {  999999999, 62500, 0xce, 0x04 },
 266         },
 267 };
 268
 269 /* ALPS TDED4
 270  * used in Nebula-Cards and USB boxes
 271  */
 272 static void tded4_bw(struct dvb_frontend *fe, u8 *buf)
 273 {
 274         u32 bw = fe->dtv_property_cache.bandwidth_hz;
 275         if (bw == 8000000)
 276                 buf[3] |= 0x04;
 277 }
 278
 279 static const struct dvb_pll_desc dvb_pll_tded4 = {
 280         .name = "ALPS TDED4",
 281         .min = 47000000,
 282         .max = 863000000,
 283         .iffreq= 36166667,
 284         .set   = tded4_bw,
 285         .count = 4,
 286         .entries = {
 287                 { 153000000, 166667, 0x85, 0x01 },
 288                 { 470000000, 166667, 0x85, 0x02 },
 289                 { 823000000, 166667, 0x85, 0x08 },
 290                 { 999999999, 166667, 0x85, 0x88 },
 291         }
 292 };
 293
 294 /* ALPS TDHU2
 295  * used in AverTVHD MCE A180
 296  */
 297 static const struct dvb_pll_desc dvb_pll_tdhu2 = {
 298         .name = "ALPS TDHU2",
 299         .min = 54000000,
 300         .max = 864000000,
 301         .iffreq= 44000000,
 302         .count = 4,
 303         .entries = {
 304                 { 162000000, 62500, 0x85, 0x01 },
 305                 { 426000000, 62500, 0x85, 0x02 },
 306                 { 782000000, 62500, 0x85, 0x08 },
 307                 { 999999999, 62500, 0x85, 0x88 },
 308         }
 309 };
 310
 311 /* Samsung TBMV30111IN / TBMV30712IN1
 312  * used in Air2PC ATSC - 2nd generation (nxt2002)
 313  */
 314 static const struct dvb_pll_desc dvb_pll_samsung_tbmv = {
 315         .name = "Samsung TBMV30111IN / TBMV30712IN1",
 316         .min = 54000000,
 317         .max = 860000000,
 318         .iffreq= 44000000,
 319         .count = 6,
 320         .entries = {
 321                 { 172000000, 166667, 0xb4, 0x01 },
 322                 { 214000000, 166667, 0xb4, 0x02 },
 323                 { 467000000, 166667, 0xbc, 0x02 },
 324                 { 721000000, 166667, 0xbc, 0x08 },
 325                 { 841000000, 166667, 0xf4, 0x08 },
 326                 { 999999999, 166667, 0xfc, 0x02 },
 327         }
 328 };
 329
 330 /*
 331  * Philips SD1878 Tuner.
 332  */
 333 static const struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
 334         .name  = "Philips SD1878",
 335         .min   =  950000,
 336         .max   = 2150000,
 337         .iffreq= 249, /* zero-IF, offset 249 is to round up */
 338         .count = 4,
 339         .entries = {
 340                 { 1250000, 500, 0xc4, 0x00},
 341                 { 1450000, 500, 0xc4, 0x40},
 342                 { 2050000, 500, 0xc4, 0x80},
 343                 { 2150000, 500, 0xc4, 0xc0},
 344         },
 345 };
 346
 347 static void opera1_bw(struct dvb_frontend *fe, u8 *buf)
 348 {
 349         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 350         struct dvb_pll_priv *priv = fe->tuner_priv;
 351         u32 b_w  = (c->symbol_rate * 27) / 32000;
 352         struct i2c_msg msg = {
 353                 .addr = priv->pll_i2c_address,
 354                 .flags = 0,
 355                 .buf = buf,
 356                 .len = 4
 357         };
 358         int result;
 359         u8 lpf;
 360
 361         if (fe->ops.i2c_gate_ctrl)
 362                 fe->ops.i2c_gate_ctrl(fe, 1);
 363
 364         result = i2c_transfer(priv->i2c, &msg, 1);
 365         if (result != 1)
 366                 pr_err("%s: i2c_transfer failed:%d",
 367                         __func__, result);
 368
 369         if (b_w <= 10000)
 370                 lpf = 0xc;
 371         else if (b_w <= 12000)
 372                 lpf = 0x2;
 373         else if (b_w <= 14000)
 374                 lpf = 0xa;
 375         else if (b_w <= 16000)
 376                 lpf = 0x6;
 377         else if (b_w <= 18000)
 378                 lpf = 0xe;
 379         else if (b_w <= 20000)
 380                 lpf = 0x1;
 381         else if (b_w <= 22000)
 382                 lpf = 0x9;
 383         else if (b_w <= 24000)
 384                 lpf = 0x5;
 385         else if (b_w <= 26000)
 386                 lpf = 0xd;
 387         else if (b_w <= 28000)
 388                 lpf = 0x3;
 389                 else
 390                 lpf = 0xb;
 391         buf[2] ^= 0x1c; /* Flip bits 3-5 */
 392         /* Set lpf */
 393         buf[2] |= ((lpf >> 2) & 0x3) << 3;
 394         buf[3] |= (lpf & 0x3) << 2;
 395
 396         return;
 397 }
 398
 399 static const struct dvb_pll_desc dvb_pll_opera1 = {
 400         .name  = "Opera Tuner",
 401         .min   =  900000,
 402         .max   = 2250000,
 403         .initdata = (u8[]){ 4, 0x08, 0xe5, 0xe1, 0x00 },
 404         .initdata2 = (u8[]){ 4, 0x08, 0xe5, 0xe5, 0x00 },
 405         .iffreq= 0,
 406         .set   = opera1_bw,
 407         .count = 8,
 408         .entries = {
 409                 { 1064000, 500, 0xf9, 0xc2 },
 410                 { 1169000, 500, 0xf9, 0xe2 },
 411                 { 1299000, 500, 0xf9, 0x20 },
 412                 { 1444000, 500, 0xf9, 0x40 },
 413                 { 1606000, 500, 0xf9, 0x60 },
 414                 { 1777000, 500, 0xf9, 0x80 },
 415                 { 1941000, 500, 0xf9, 0xa0 },
 416                 { 2250000, 500, 0xf9, 0xc0 },
 417         }
 418 };
 419
 420 static void samsung_dtos403ih102a_set(struct dvb_frontend *fe, u8 *buf)
 421 {
 422         struct dvb_pll_priv *priv = fe->tuner_priv;
 423         struct i2c_msg msg = {
 424                 .addr = priv->pll_i2c_address,
 425                 .flags = 0,
 426                 .buf = buf,
 427                 .len = 4
 428         };
 429         int result;
 430
 431         if (fe->ops.i2c_gate_ctrl)
 432                 fe->ops.i2c_gate_ctrl(fe, 1);
 433
 434         result = i2c_transfer(priv->i2c, &msg, 1);
 435         if (result != 1)
 436                 pr_err("%s: i2c_transfer failed:%d",
 437                         __func__, result);
 438
 439         buf[2] = 0x9e;
 440         buf[3] = 0x90;
 441
 442         return;
 443 }
 444
 445 /* unknown pll used in Samsung DTOS403IH102A DVB-C tuner */
 446 static const struct dvb_pll_desc dvb_pll_samsung_dtos403ih102a = {
 447         .name   = "Samsung DTOS403IH102A",
 448         .min    =  44250000,
 449         .max    = 858000000,
 450         .iffreq =  36125000,
 451         .count  = 8,
 452         .set    = samsung_dtos403ih102a_set,
 453         .entries = {
 454                 { 135000000, 62500, 0xbe, 0x01 },
 455                 { 177000000, 62500, 0xf6, 0x01 },
 456                 { 370000000, 62500, 0xbe, 0x02 },
 457                 { 450000000, 62500, 0xf6, 0x02 },
 458                 { 466000000, 62500, 0xfe, 0x02 },
 459                 { 538000000, 62500, 0xbe, 0x08 },
 460                 { 826000000, 62500, 0xf6, 0x08 },
 461                 { 999999999, 62500, 0xfe, 0x08 },
 462         }
 463 };
 464
 465 /* Samsung TDTC9251DH0 DVB-T NIM, as used on AirStar 2 */
 466 static const struct dvb_pll_desc dvb_pll_samsung_tdtc9251dh0 = {
 467         .name   = "Samsung TDTC9251DH0",
 468         .min    =  48000000,
 469         .max    = 863000000,
 470         .iffreq =  36166667,
 471         .count  = 3,
 472         .entries = {
 473                 { 157500000, 166667, 0xcc, 0x09 },
 474                 { 443000000, 166667, 0xcc, 0x0a },
 475                 { 863000000, 166667, 0xcc, 0x08 },
 476         }
 477 };
 478
 479 /* Samsung TBDU18132 DVB-S NIM with TSA5059 PLL, used in SkyStar2 DVB-S 2.3 */
 480 static const struct dvb_pll_desc dvb_pll_samsung_tbdu18132 = {
 481         .name = "Samsung TBDU18132",
 482         .min    =  950000,
 483         .max    = 2150000, /* guesses */
 484         .iffreq = 0,
 485         .count = 2,
 486         .entries = {
 487                 { 1550000, 125, 0x84, 0x82 },
 488                 { 4095937, 125, 0x84, 0x80 },
 489         }
 490         /* TSA5059 PLL has a 17 bit divisor rather than the 15 bits supported
 491          * by this driver.  The two extra bits are 0x60 in the third byte.  15
 492          * bits is enough for over 4 GHz, which is enough to cover the range
 493          * of this tuner.  We could use the additional divisor bits by adding
 494          * more entries, e.g.
 495          { 0x0ffff * 125 + 125/2, 125, 0x84 | 0x20, },
 496          { 0x17fff * 125 + 125/2, 125, 0x84 | 0x40, },
 497          { 0x1ffff * 125 + 125/2, 125, 0x84 | 0x60, }, */
 498 };
 499
 500 /* Samsung TBMU24112 DVB-S NIM with SL1935 zero-IF tuner */
 501 static const struct dvb_pll_desc dvb_pll_samsung_tbmu24112 = {
 502         .name = "Samsung TBMU24112",
 503         .min    =  950000,
 504         .max    = 2150000, /* guesses */
 505         .iffreq = 0,
 506         .count = 2,
 507         .entries = {
 508                 { 1500000, 125, 0x84, 0x18 },
 509                 { 9999999, 125, 0x84, 0x08 },
 510         }
 511 };
 512
 513 /* Alps TDEE4 DVB-C NIM, used on Cablestar 2 */
 514 /* byte 4 : 1  *   *   AGD R3  R2  R1  R0
 515  * byte 5 : C1 *   RE  RTS BS4 BS3 BS2 BS1
 516  * AGD = 1, R3 R2 R1 R0 = 0 1 0 1 => byte 4 = 1**10101 = 0x95
 517  * Range(MHz)  C1 *  RE RTS BS4 BS3 BS2 BS1  Byte 5
 518  *  47 - 153   0  *  0   0   0   0   0   1   0x01
 519  * 153 - 430   0  *  0   0   0   0   1   0   0x02
 520  * 430 - 822   0  *  0   0   1   0   0   0   0x08
 521  * 822 - 862   1  *  0   0   1   0   0   0   0x88 */
 522 static const struct dvb_pll_desc dvb_pll_alps_tdee4 = {
 523         .name = "ALPS TDEE4",
 524         .min    =  47000000,
 525         .max    = 862000000,
 526         .iffreq =  36125000,
 527         .count = 4,
 528         .entries = {
 529                 { 153000000, 62500, 0x95, 0x01 },
 530                 { 430000000, 62500, 0x95, 0x02 },
 531                 { 822000000, 62500, 0x95, 0x08 },
 532                 { 999999999, 62500, 0x95, 0x88 },
 533         }
 534 };
 535
 536 /* ----------------------------------------------------------- */
 537
 538 static const struct dvb_pll_desc *pll_list[] = {
 539         [DVB_PLL_UNDEFINED]              = NULL,
 540         [DVB_PLL_THOMSON_DTT7579]        = &dvb_pll_thomson_dtt7579,
 541         [DVB_PLL_THOMSON_DTT759X]        = &dvb_pll_thomson_dtt759x,
 542         [DVB_PLL_THOMSON_DTT7520X]       = &dvb_pll_thomson_dtt7520x,
 543         [DVB_PLL_LG_Z201]                = &dvb_pll_lg_z201,
 544         [DVB_PLL_UNKNOWN_1]              = &dvb_pll_unknown_1,
 545         [DVB_PLL_TUA6010XS]              = &dvb_pll_tua6010xs,
 546         [DVB_PLL_ENV57H1XD5]             = &dvb_pll_env57h1xd5,
 547         [DVB_PLL_TUA6034]                = &dvb_pll_tua6034,
 548         [DVB_PLL_TDA665X]                = &dvb_pll_tda665x,
 549         [DVB_PLL_TDED4]                  = &dvb_pll_tded4,
 550         [DVB_PLL_TDEE4]                  = &dvb_pll_alps_tdee4,
 551         [DVB_PLL_TDHU2]                  = &dvb_pll_tdhu2,
 552         [DVB_PLL_SAMSUNG_TBMV]           = &dvb_pll_samsung_tbmv,
 553         [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
 554         [DVB_PLL_OPERA1]                 = &dvb_pll_opera1,
 555         [DVB_PLL_SAMSUNG_DTOS403IH102A]  = &dvb_pll_samsung_dtos403ih102a,
 556         [DVB_PLL_SAMSUNG_TDTC9251DH0]    = &dvb_pll_samsung_tdtc9251dh0,
 557         [DVB_PLL_SAMSUNG_TBDU18132]      = &dvb_pll_samsung_tbdu18132,
 558         [DVB_PLL_SAMSUNG_TBMU24112]      = &dvb_pll_samsung_tbmu24112,
 559 };
 560
 561 /* ----------------------------------------------------------- */
 562 /* code                                                        */
 563
 564 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
 565                              const u32 frequency)
 566 {
 567         struct dvb_pll_priv *priv = fe->tuner_priv;
 568         const struct dvb_pll_desc *desc = priv->pll_desc;
 569         u32 div;
 570         int i;
 571
 572         if (frequency && (frequency < desc->min || frequency > desc->max))
 573                 return -EINVAL;
 574
 575         for (i = 0; i < desc->count; i++) {
 576                 if (frequency > desc->entries[i].limit)
 577                         continue;
 578                 break;
 579         }
 580
 581         if (debug)
 582                 dprintk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
 583                        frequency, i, desc->count);
 584         if (i == desc->count)
 585                 return -EINVAL;
 586
 587         div = (frequency + desc->iffreq +
 588                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
 589         buf[0] = div >> 8;
 590         buf[1] = div & 0xff;
 591         buf[2] = desc->entries[i].config;
 592         buf[3] = desc->entries[i].cb;
 593
 594         if (desc->set)
 595                 desc->set(fe, buf);
 596
 597         if (debug)
 598                 dprintk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 599                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
 600
 601         // calculate the frequency we set it to
 602         return (div * desc->entries[i].stepsize) - desc->iffreq;
 603 }
 604
 605 static void dvb_pll_release(struct dvb_frontend *fe)
 606 {
 607         kfree(fe->tuner_priv);
 608         fe->tuner_priv = NULL;
 609 }
 610
 611 static int dvb_pll_sleep(struct dvb_frontend *fe)
 612 {
 613         struct dvb_pll_priv *priv = fe->tuner_priv;
 614
 615         if (priv->i2c == NULL)
 616                 return -EINVAL;
 617
 618         if (priv->pll_desc->sleepdata) {
 619                 struct i2c_msg msg = { .flags = 0,
 620                         .addr = priv->pll_i2c_address,
 621                         .buf = priv->pll_desc->sleepdata + 1,
 622                         .len = priv->pll_desc->sleepdata[0] };
 623
 624                 int result;
 625
 626                 if (fe->ops.i2c_gate_ctrl)
 627                         fe->ops.i2c_gate_ctrl(fe, 1);
 628                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 629                         return result;
 630                 }
 631                 return 0;
 632         }
 633         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 634         return -EINVAL;
 635 }
 636
 637 static int dvb_pll_set_params(struct dvb_frontend *fe)
 638 {
 639         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 640         struct dvb_pll_priv *priv = fe->tuner_priv;
 641         u8 buf[4];
 642         struct i2c_msg msg =
 643                 { .addr = priv->pll_i2c_address, .flags = 0,
 644                   .buf = buf, .len = sizeof(buf) };
 645         int result;
 646         u32 frequency = 0;
 647
 648         if (priv->i2c == NULL)
 649                 return -EINVAL;
 650
 651         result = dvb_pll_configure(fe, buf, c->frequency);
 652         if (result < 0)
 653                 return result;
 654         else
 655                 frequency = result;
 656
 657         if (fe->ops.i2c_gate_ctrl)
 658                 fe->ops.i2c_gate_ctrl(fe, 1);
 659         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 660                 return result;
 661         }
 662
 663         priv->frequency = frequency;
 664         priv->bandwidth = c->bandwidth_hz;
 665
 666         return 0;
 667 }
 668
 669 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
 670                              u8 *buf, int buf_len)
 671 {
 672         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 673         struct dvb_pll_priv *priv = fe->tuner_priv;
 674         int result;
 675         u32 frequency = 0;
 676
 677         if (buf_len < 5)
 678                 return -EINVAL;
 679
 680         result = dvb_pll_configure(fe, buf + 1, c->frequency);
 681         if (result < 0)
 682                 return result;
 683         else
 684                 frequency = result;
 685
 686         buf[0] = priv->pll_i2c_address;
 687
 688         priv->frequency = frequency;
 689         priv->bandwidth = c->bandwidth_hz;
 690
 691         return 5;
 692 }
 693
 694 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 695 {
 696         struct dvb_pll_priv *priv = fe->tuner_priv;
 697         *frequency = priv->frequency;
 698         return 0;
 699 }
 700
 701 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 702 {
 703         struct dvb_pll_priv *priv = fe->tuner_priv;
 704         *bandwidth = priv->bandwidth;
 705         return 0;
 706 }
 707
 708 static int dvb_pll_init(struct dvb_frontend *fe)
 709 {
 710         struct dvb_pll_priv *priv = fe->tuner_priv;
 711
 712         if (priv->i2c == NULL)
 713                 return -EINVAL;
 714
 715         if (priv->pll_desc->initdata) {
 716                 struct i2c_msg msg = { .flags = 0,
 717                         .addr = priv->pll_i2c_address,
 718                         .buf = priv->pll_desc->initdata + 1,
 719                         .len = priv->pll_desc->initdata[0] };
 720
 721                 int result;
 722                 if (fe->ops.i2c_gate_ctrl)
 723                         fe->ops.i2c_gate_ctrl(fe, 1);
 724                 result = i2c_transfer(priv->i2c, &msg, 1);
 725                 if (result != 1)
 726                         return result;
 727                 if (priv->pll_desc->initdata2) {
 728                         msg.buf = priv->pll_desc->initdata2 + 1;
 729                         msg.len = priv->pll_desc->initdata2[0];
 730                         if (fe->ops.i2c_gate_ctrl)
 731                                 fe->ops.i2c_gate_ctrl(fe, 1);
 732                         result = i2c_transfer(priv->i2c, &msg, 1);
 733                         if (result != 1)
 734                                 return result;
 735                 }
 736                 return 0;
 737         }
 738         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 739         return -EINVAL;
 740 }
 741
 742 static const struct dvb_tuner_ops dvb_pll_tuner_ops = {
 743         .release = dvb_pll_release,
 744         .sleep = dvb_pll_sleep,
 745         .init = dvb_pll_init,
 746         .set_params = dvb_pll_set_params,
 747         .calc_regs = dvb_pll_calc_regs,
 748         .get_frequency = dvb_pll_get_frequency,
 749         .get_bandwidth = dvb_pll_get_bandwidth,
 750 };
 751
 752 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 753                                     struct i2c_adapter *i2c,
 754                                     unsigned int pll_desc_id)
 755 {
 756         u8 b1 [] = { 0 };
 757         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
 758                                .buf = b1, .len = 1 };
 759         struct dvb_pll_priv *priv = NULL;
 760         int ret;
 761         const struct dvb_pll_desc *desc;
 762
 763         if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
 764             (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
 765                 pll_desc_id = id[dvb_pll_devcount];
 766
 767         BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
 768
 769         desc = pll_list[pll_desc_id];
 770
 771         if (i2c != NULL) {
 772                 if (fe->ops.i2c_gate_ctrl)
 773                         fe->ops.i2c_gate_ctrl(fe, 1);
 774
 775                 ret = i2c_transfer (i2c, &msg, 1);
 776                 if (ret != 1)
 777                         return NULL;
 778                 if (fe->ops.i2c_gate_ctrl)
 779                              fe->ops.i2c_gate_ctrl(fe, 0);
 780         }
 781
 782         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
 783         if (priv == NULL)
 784                 return NULL;
 785
 786         priv->pll_i2c_address = pll_addr;
 787         priv->i2c = i2c;
 788         priv->pll_desc = desc;
 789         priv->nr = dvb_pll_devcount++;
 790
 791         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
 792                sizeof(struct dvb_tuner_ops));
 793
 794         strncpy(fe->ops.tuner_ops.info.name, desc->name,
 795                 sizeof(fe->ops.tuner_ops.info.name));
 796         fe->ops.tuner_ops.info.frequency_min = desc->min;
 797         fe->ops.tuner_ops.info.frequency_max = desc->max;
 798         if (!desc->initdata)
 799                 fe->ops.tuner_ops.init = NULL;
 800         if (!desc->sleepdata)
 801                 fe->ops.tuner_ops.sleep = NULL;
 802
 803         fe->tuner_priv = priv;
 804
 805         if ((debug) || (id[priv->nr] == pll_desc_id)) {
 806                 dprintk("dvb-pll[%d]", priv->nr);
 807                 if (i2c != NULL)
 808                         pr_cont(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
 809                 pr_cont(": id# %d (%s) attached, %s\n", pll_desc_id, desc->name,
 810                        id[priv->nr] == pll_desc_id ?
 811                                 "insmod option" : "autodetected");
 812         }
 813
 814         return fe;
 815 }
 816 EXPORT_SYMBOL(dvb_pll_attach);
 817
 818 MODULE_DESCRIPTION("dvb pll library");
 819 MODULE_AUTHOR("Gerd Knorr");
 820 MODULE_LICENSE("GPL");