SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  */
  20
  21 #include <linux/module.h>
  22 #include <linux/dvb/frontend.h>
  23 #include <asm/types.h>
  24
  25 #include "dvb-pll.h"
  26
  27 /* ----------------------------------------------------------- */
  28 /* descriptions                                                */
  29
  30 /* Set AGC TOP value to 103 dBuV:
  31         0x80 = Control Byte
  32         0x40 = 250 uA charge pump (irrelevant)
  33         0x18 = Aux Byte to follow
  34         0x06 = 64.5 kHz divider (irrelevant)
  35         0x01 = Disable Vt (aka sleep)
  36
  37         0x00 = AGC Time constant 2s Iagc = 300 nA (vs 0x80 = 9 nA)
  38         0x50 = AGC Take over point = 103 dBuV */
  39 static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 };
  40
  41 struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
  42         .name  = "Thomson dtt7579",
  43         .min   = 177000000,
  44         .max   = 858000000,
  45         .iffreq= 36166667,
  46         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
  47         .count = 4,
  48         .entries = {
  49                 {  443250000, 166667, 0xb4, 0x02 },
  50                 {  542000000, 166667, 0xb4, 0x08 },
  51                 {  771000000, 166667, 0xbc, 0x08 },
  52                 {  999999999, 166667, 0xf4, 0x08 },
  53         },
  54 };
  55 EXPORT_SYMBOL(dvb_pll_thomson_dtt7579);
  56
  57 struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
  58         .name  = "Thomson dtt7610",
  59         .min   =  44000000,
  60         .max   = 958000000,
  61         .iffreq= 44000000,
  62         .count = 3,
  63         .entries = {
  64                 { 157250000, 62500, 0x8e, 0x39 },
  65                 { 454000000, 62500, 0x8e, 0x3a },
  66                 { 999999999, 62500, 0x8e, 0x3c },
  67         },
  68 };
  69 EXPORT_SYMBOL(dvb_pll_thomson_dtt7610);
  70
  71 static void thomson_dtt759x_bw(u8 *buf,
  72                                const struct dvb_frontend_parameters *params)
  73 {
  74         if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
  75                 buf[3] |= 0x10;
  76 }
  77
  78 struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
  79         .name  = "Thomson dtt759x",
  80         .min   = 177000000,
  81         .max   = 896000000,
  82         .set   = thomson_dtt759x_bw,
  83         .iffreq= 36166667,
  84         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
  85         .count = 5,
  86         .entries = {
  87                 {  264000000, 166667, 0xb4, 0x02 },
  88                 {  470000000, 166667, 0xbc, 0x02 },
  89                 {  735000000, 166667, 0xbc, 0x08 },
  90                 {  835000000, 166667, 0xf4, 0x08 },
  91                 {  999999999, 166667, 0xfc, 0x08 },
  92         },
  93 };
  94 EXPORT_SYMBOL(dvb_pll_thomson_dtt759x);
  95
  96 struct dvb_pll_desc dvb_pll_lg_z201 = {
  97         .name  = "LG z201",
  98         .min   = 174000000,
  99         .max   = 862000000,
 100         .iffreq= 36166667,
 101         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
 102         .count = 5,
 103         .entries = {
 104                 {  157500000, 166667, 0xbc, 0x01 },
 105                 {  443250000, 166667, 0xbc, 0x02 },
 106                 {  542000000, 166667, 0xbc, 0x04 },
 107                 {  830000000, 166667, 0xf4, 0x04 },
 108                 {  999999999, 166667, 0xfc, 0x04 },
 109         },
 110 };
 111 EXPORT_SYMBOL(dvb_pll_lg_z201);
 112
 113 struct dvb_pll_desc dvb_pll_microtune_4042 = {
 114         .name  = "Microtune 4042 FI5",
 115         .min   =  57000000,
 116         .max   = 858000000,
 117         .iffreq= 44000000,
 118         .count = 3,
 119         .entries = {
 120                 { 162000000, 62500, 0x8e, 0xa1 },
 121                 { 457000000, 62500, 0x8e, 0x91 },
 122                 { 999999999, 62500, 0x8e, 0x31 },
 123         },
 124 };
 125 EXPORT_SYMBOL(dvb_pll_microtune_4042);
 126
 127 struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
 128         /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
 129         .name  = "Thomson dtt761x",
 130         .min   =  57000000,
 131         .max   = 863000000,
 132         .iffreq= 44000000,
 133         .count = 3,
 134         .initdata = tua603x_agc103,
 135         .entries = {
 136                 { 147000000, 62500, 0x8e, 0x39 },
 137                 { 417000000, 62500, 0x8e, 0x3a },
 138                 { 999999999, 62500, 0x8e, 0x3c },
 139         },
 140 };
 141 EXPORT_SYMBOL(dvb_pll_thomson_dtt761x);
 142
 143 struct dvb_pll_desc dvb_pll_unknown_1 = {
 144         .name  = "unknown 1", /* used by dntv live dvb-t */
 145         .min   = 174000000,
 146         .max   = 862000000,
 147         .iffreq= 36166667,
 148         .count = 9,
 149         .entries = {
 150                 {  150000000, 166667, 0xb4, 0x01 },
 151                 {  173000000, 166667, 0xbc, 0x01 },
 152                 {  250000000, 166667, 0xb4, 0x02 },
 153                 {  400000000, 166667, 0xbc, 0x02 },
 154                 {  420000000, 166667, 0xf4, 0x02 },
 155                 {  470000000, 166667, 0xfc, 0x02 },
 156                 {  600000000, 166667, 0xbc, 0x08 },
 157                 {  730000000, 166667, 0xf4, 0x08 },
 158                 {  999999999, 166667, 0xfc, 0x08 },
 159         },
 160 };
 161 EXPORT_SYMBOL(dvb_pll_unknown_1);
 162
 163 /* Infineon TUA6010XS
 164  * used in Thomson Cable Tuner
 165  */
 166 struct dvb_pll_desc dvb_pll_tua6010xs = {
 167         .name  = "Infineon TUA6010XS",
 168         .min   =  44250000,
 169         .max   = 858000000,
 170         .iffreq= 36125000,
 171         .count = 3,
 172         .entries = {
 173                 {  115750000, 62500, 0x8e, 0x03 },
 174                 {  403250000, 62500, 0x8e, 0x06 },
 175                 {  999999999, 62500, 0x8e, 0x85 },
 176         },
 177 };
 178 EXPORT_SYMBOL(dvb_pll_tua6010xs);
 179
 180 /* Panasonic env57h1xd5 (some Philips PLL ?) */
 181 struct dvb_pll_desc dvb_pll_env57h1xd5 = {
 182         .name  = "Panasonic ENV57H1XD5",
 183         .min   =  44250000,
 184         .max   = 858000000,
 185         .iffreq= 36125000,
 186         .count = 4,
 187         .entries = {
 188                 {  153000000, 166667, 0xc2, 0x41 },
 189                 {  470000000, 166667, 0xc2, 0x42 },
 190                 {  526000000, 166667, 0xc2, 0x84 },
 191                 {  999999999, 166667, 0xc2, 0xa4 },
 192         },
 193 };
 194 EXPORT_SYMBOL(dvb_pll_env57h1xd5);
 195
 196 /* Philips TDA6650/TDA6651
 197  * used in Panasonic ENV77H11D5
 198  */
 199 static void tda665x_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 200 {
 201         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 202                 buf[3] |= 0x08;
 203 }
 204
 205 struct dvb_pll_desc dvb_pll_tda665x = {
 206         .name  = "Philips TDA6650/TDA6651",
 207         .min   =  44250000,
 208         .max   = 858000000,
 209         .set   = tda665x_bw,
 210         .iffreq= 36166667,
 211         .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
 212         .count = 12,
 213         .entries = {
 214                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
 215                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 216                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 217                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 218                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
 219                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
 220                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 221                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 222                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
 223                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
 224                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 225                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
 226         }
 227 };
 228 EXPORT_SYMBOL(dvb_pll_tda665x);
 229
 230 /* Infineon TUA6034
 231  * used in LG TDTP E102P
 232  */
 233 static void tua6034_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 234 {
 235         if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
 236                 buf[3] |= 0x08;
 237 }
 238
 239 struct dvb_pll_desc dvb_pll_tua6034 = {
 240         .name  = "Infineon TUA6034",
 241         .min   =  44250000,
 242         .max   = 858000000,
 243         .iffreq= 36166667,
 244         .count = 3,
 245         .set   = tua6034_bw,
 246         .entries = {
 247                 {  174500000, 62500, 0xce, 0x01 },
 248                 {  230000000, 62500, 0xce, 0x02 },
 249                 {  999999999, 62500, 0xce, 0x04 },
 250         },
 251 };
 252 EXPORT_SYMBOL(dvb_pll_tua6034);
 253
 254 /* Infineon TUA6034
 255  * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
 256  */
 257 struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
 258         .name  = "LG TDVS-H06xF",
 259         .min   =  54000000,
 260         .max   = 863000000,
 261         .iffreq= 44000000,
 262         .initdata = tua603x_agc103,
 263         .count = 3,
 264         .entries = {
 265                 {  165000000, 62500, 0xce, 0x01 },
 266                 {  450000000, 62500, 0xce, 0x02 },
 267                 {  999999999, 62500, 0xce, 0x04 },
 268         },
 269 };
 270 EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf);
 271
 272 /* Philips FMD1216ME
 273  * used in Medion Hybrid PCMCIA card and USB Box
 274  */
 275 static void fmd1216me_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 276 {
 277         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 278             params->frequency >= 158870000)
 279                 buf[3] |= 0x08;
 280 }
 281
 282 struct dvb_pll_desc dvb_pll_fmd1216me = {
 283         .name = "Philips FMD1216ME",
 284         .min = 50870000,
 285         .max = 858000000,
 286         .iffreq= 36125000,
 287         .set   = fmd1216me_bw,
 288         .count = 7,
 289         .entries = {
 290                 { 143870000, 166667, 0xbc, 0x41 },
 291                 { 158870000, 166667, 0xf4, 0x41 },
 292                 { 329870000, 166667, 0xbc, 0x42 },
 293                 { 441870000, 166667, 0xf4, 0x42 },
 294                 { 625870000, 166667, 0xbc, 0x44 },
 295                 { 803870000, 166667, 0xf4, 0x44 },
 296                 { 999999999, 166667, 0xfc, 0x44 },
 297         }
 298 };
 299 EXPORT_SYMBOL(dvb_pll_fmd1216me);
 300
 301 /* ALPS TDED4
 302  * used in Nebula-Cards and USB boxes
 303  */
 304 static void tded4_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 305 {
 306         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 307                 buf[3] |= 0x04;
 308 }
 309
 310 struct dvb_pll_desc dvb_pll_tded4 = {
 311         .name = "ALPS TDED4",
 312         .min = 47000000,
 313         .max = 863000000,
 314         .iffreq= 36166667,
 315         .set   = tded4_bw,
 316         .count = 4,
 317         .entries = {
 318                 { 153000000, 166667, 0x85, 0x01 },
 319                 { 470000000, 166667, 0x85, 0x02 },
 320                 { 823000000, 166667, 0x85, 0x08 },
 321                 { 999999999, 166667, 0x85, 0x88 },
 322         }
 323 };
 324 EXPORT_SYMBOL(dvb_pll_tded4);
 325
 326 /* ALPS TDHU2
 327  * used in AverTVHD MCE A180
 328  */
 329 struct dvb_pll_desc dvb_pll_tdhu2 = {
 330         .name = "ALPS TDHU2",
 331         .min = 54000000,
 332         .max = 864000000,
 333         .iffreq= 44000000,
 334         .count = 4,
 335         .entries = {
 336                 { 162000000, 62500, 0x85, 0x01 },
 337                 { 426000000, 62500, 0x85, 0x02 },
 338                 { 782000000, 62500, 0x85, 0x08 },
 339                 { 999999999, 62500, 0x85, 0x88 },
 340         }
 341 };
 342 EXPORT_SYMBOL(dvb_pll_tdhu2);
 343
 344 /* Philips TUV1236D
 345  * used in ATI HDTV Wonder
 346  */
 347 static void tuv1236d_rf(u8 *buf, const struct dvb_frontend_parameters *params)
 348 {
 349         switch (params->u.vsb.modulation) {
 350                 case QAM_64:
 351                 case QAM_256:
 352                         buf[3] |= 0x08;
 353                         break;
 354                 case VSB_8:
 355                 default:
 356                         buf[3] &= ~0x08;
 357         }
 358 }
 359
 360 struct dvb_pll_desc dvb_pll_tuv1236d = {
 361         .name  = "Philips TUV1236D",
 362         .min   =  54000000,
 363         .max   = 864000000,
 364         .iffreq= 44000000,
 365         .set   = tuv1236d_rf,
 366         .count = 3,
 367         .entries = {
 368                 { 157250000, 62500, 0xc6, 0x41 },
 369                 { 454000000, 62500, 0xc6, 0x42 },
 370                 { 999999999, 62500, 0xc6, 0x44 },
 371         },
 372 };
 373 EXPORT_SYMBOL(dvb_pll_tuv1236d);
 374
 375 /* Samsung TBMV30111IN / TBMV30712IN1
 376  * used in Air2PC ATSC - 2nd generation (nxt2002)
 377  */
 378 struct dvb_pll_desc dvb_pll_samsung_tbmv = {
 379         .name = "Samsung TBMV30111IN / TBMV30712IN1",
 380         .min = 54000000,
 381         .max = 860000000,
 382         .iffreq= 44000000,
 383         .count = 6,
 384         .entries = {
 385                 { 172000000, 166667, 0xb4, 0x01 },
 386                 { 214000000, 166667, 0xb4, 0x02 },
 387                 { 467000000, 166667, 0xbc, 0x02 },
 388                 { 721000000, 166667, 0xbc, 0x08 },
 389                 { 841000000, 166667, 0xf4, 0x08 },
 390                 { 999999999, 166667, 0xfc, 0x02 },
 391         }
 392 };
 393 EXPORT_SYMBOL(dvb_pll_samsung_tbmv);
 394
 395 /*
 396  * Philips SD1878 Tuner.
 397  */
 398 struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
 399         .name  = "Philips SD1878",
 400         .min   =  950000,
 401         .max   = 2150000,
 402         .iffreq= 249, /* zero-IF, offset 249 is to round up */
 403         .count = 4,
 404         .entries = {
 405                 { 1250000, 500, 0xc4, 0x00},
 406                 { 1550000, 500, 0xc4, 0x40},
 407                 { 2050000, 500, 0xc4, 0x80},
 408                 { 2150000, 500, 0xc4, 0xc0},
 409         },
 410 };
 411 EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261);
 412
 413 /*
 414  * Philips TD1316 Tuner.
 415  */
 416 static void td1316_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 417 {
 418         u8 band;
 419
 420         /* determine band */
 421         if (params->frequency < 161000000)
 422                 band = 1;
 423         else if (params->frequency < 444000000)
 424                 band = 2;
 425         else
 426                 band = 4;
 427
 428         buf[3] |= band;
 429
 430         /* setup PLL filter */
 431         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 432                 buf[3] |= 1 << 3;
 433 }
 434
 435 struct dvb_pll_desc dvb_pll_philips_td1316 = {
 436         .name  = "Philips TD1316",
 437         .min   =  87000000,
 438         .max   = 895000000,
 439         .iffreq= 36166667,
 440         .set   = td1316_bw,
 441         .count = 9,
 442         .entries = {
 443                 {  93834000, 166667, 0xca, 0x60},
 444                 { 123834000, 166667, 0xca, 0xa0},
 445                 { 163834000, 166667, 0xca, 0xc0},
 446                 { 253834000, 166667, 0xca, 0x60},
 447                 { 383834000, 166667, 0xca, 0xa0},
 448                 { 443834000, 166667, 0xca, 0xc0},
 449                 { 583834000, 166667, 0xca, 0x60},
 450                 { 793834000, 166667, 0xca, 0xa0},
 451                 { 858834000, 166667, 0xca, 0xe0},
 452         },
 453 };
 454 EXPORT_SYMBOL(dvb_pll_philips_td1316);
 455
 456 /* FE6600 used on DViCO Hybrid */
 457 struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
 458         .name = "Thomson FE6600",
 459         .min =  44250000,
 460         .max = 858000000,
 461         .iffreq= 36125000,
 462         .count = 4,
 463         .entries = {
 464                 { 250000000, 166667, 0xb4, 0x12 },
 465                 { 455000000, 166667, 0xfe, 0x11 },
 466                 { 775500000, 166667, 0xbc, 0x18 },
 467                 { 999999999, 166667, 0xf4, 0x18 },
 468         }
 469 };
 470 EXPORT_SYMBOL(dvb_pll_thomson_fe6600);
 471 static void opera1_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 472 {
 473         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 474                 buf[2] |= 0x08;
 475 }
 476
 477 struct dvb_pll_desc dvb_pll_opera1 = {
 478         .name  = "Opera Tuner",
 479         .min   =  900000,
 480         .max   = 2250000,
 481         .iffreq= 0,
 482         .set   = opera1_bw,
 483         .count = 8,
 484         .entries = {
 485                 { 1064000, 500, 0xe5, 0xc6 },
 486                 { 1169000, 500, 0xe5, 0xe6 },
 487                 { 1299000, 500, 0xe5, 0x24 },
 488                 { 1444000, 500, 0xe5, 0x44 },
 489                 { 1606000, 500, 0xe5, 0x64 },
 490                 { 1777000, 500, 0xe5, 0x84 },
 491                 { 1941000, 500, 0xe5, 0xa4 },
 492                 { 2250000, 500, 0xe5, 0xc4 },
 493         }
 494 };
 495 EXPORT_SYMBOL(dvb_pll_opera1);
 496
 497 struct dvb_pll_priv {
 498         /* i2c details */
 499         int pll_i2c_address;
 500         struct i2c_adapter *i2c;
 501
 502         /* the PLL descriptor */
 503         struct dvb_pll_desc *pll_desc;
 504
 505         /* cached frequency/bandwidth */
 506         u32 frequency;
 507         u32 bandwidth;
 508 };
 509
 510 /* ----------------------------------------------------------- */
 511 /* code                                                        */
 512
 513 static int debug = 0;
 514 module_param(debug, int, 0644);
 515 MODULE_PARM_DESC(debug, "enable verbose debug messages");
 516
 517 int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
 518                       const struct dvb_frontend_parameters *params)
 519 {
 520         u32 div;
 521         int i;
 522
 523         if (params->frequency != 0 && (params->frequency < desc->min ||
 524                                        params->frequency > desc->max))
 525                 return -EINVAL;
 526
 527         for (i = 0; i < desc->count; i++) {
 528                 if (params->frequency > desc->entries[i].limit)
 529                         continue;
 530                 break;
 531         }
 532
 533         if (debug)
 534                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
 535                        params->frequency, i, desc->count);
 536         if (i == desc->count)
 537                 return -EINVAL;
 538
 539         div = (params->frequency + desc->iffreq +
 540                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
 541         buf[0] = div >> 8;
 542         buf[1] = div & 0xff;
 543         buf[2] = desc->entries[i].config;
 544         buf[3] = desc->entries[i].cb;
 545
 546         if (desc->set)
 547                 desc->set(buf, params);
 548
 549         if (debug)
 550                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 551                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
 552
 553         // calculate the frequency we set it to
 554         return (div * desc->entries[i].stepsize) - desc->iffreq;
 555 }
 556 EXPORT_SYMBOL(dvb_pll_configure);
 557
 558 static int dvb_pll_release(struct dvb_frontend *fe)
 559 {
 560         kfree(fe->tuner_priv);
 561         fe->tuner_priv = NULL;
 562         return 0;
 563 }
 564
 565 static int dvb_pll_sleep(struct dvb_frontend *fe)
 566 {
 567         struct dvb_pll_priv *priv = fe->tuner_priv;
 568
 569         if (priv->i2c == NULL)
 570                 return -EINVAL;
 571
 572         if (priv->pll_desc->sleepdata) {
 573                 struct i2c_msg msg = { .flags = 0,
 574                         .addr = priv->pll_i2c_address,
 575                         .buf = priv->pll_desc->sleepdata + 1,
 576                         .len = priv->pll_desc->sleepdata[0] };
 577
 578                 int result;
 579
 580                 if (fe->ops.i2c_gate_ctrl)
 581                         fe->ops.i2c_gate_ctrl(fe, 1);
 582                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 583                         return result;
 584                 }
 585                 return 0;
 586         }
 587         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 588         return -EINVAL;
 589 }
 590
 591 static int dvb_pll_set_params(struct dvb_frontend *fe,
 592                               struct dvb_frontend_parameters *params)
 593 {
 594         struct dvb_pll_priv *priv = fe->tuner_priv;
 595         u8 buf[4];
 596         struct i2c_msg msg =
 597                 { .addr = priv->pll_i2c_address, .flags = 0,
 598                   .buf = buf, .len = sizeof(buf) };
 599         int result;
 600         u32 frequency = 0;
 601
 602         if (priv->i2c == NULL)
 603                 return -EINVAL;
 604
 605         if ((result = dvb_pll_configure(priv->pll_desc, buf, params)) < 0)
 606                 return result;
 607         else
 608                 frequency = result;
 609
 610         if (fe->ops.i2c_gate_ctrl)
 611                 fe->ops.i2c_gate_ctrl(fe, 1);
 612         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 613                 return result;
 614         }
 615
 616         priv->frequency = frequency;
 617         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 618
 619         return 0;
 620 }
 621
 622 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
 623                              struct dvb_frontend_parameters *params,
 624                              u8 *buf, int buf_len)
 625 {
 626         struct dvb_pll_priv *priv = fe->tuner_priv;
 627         int result;
 628         u32 frequency = 0;
 629
 630         if (buf_len < 5)
 631                 return -EINVAL;
 632
 633         if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params)) < 0)
 634                 return result;
 635         else
 636                 frequency = result;
 637
 638         buf[0] = priv->pll_i2c_address;
 639
 640         priv->frequency = frequency;
 641         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 642
 643         return 5;
 644 }
 645
 646 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 647 {
 648         struct dvb_pll_priv *priv = fe->tuner_priv;
 649         *frequency = priv->frequency;
 650         return 0;
 651 }
 652
 653 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 654 {
 655         struct dvb_pll_priv *priv = fe->tuner_priv;
 656         *bandwidth = priv->bandwidth;
 657         return 0;
 658 }
 659
 660 static int dvb_pll_init(struct dvb_frontend *fe)
 661 {
 662         struct dvb_pll_priv *priv = fe->tuner_priv;
 663
 664         if (priv->i2c == NULL)
 665                 return -EINVAL;
 666
 667         if (priv->pll_desc->initdata) {
 668                 struct i2c_msg msg = { .flags = 0,
 669                         .addr = priv->pll_i2c_address,
 670                         .buf = priv->pll_desc->initdata + 1,
 671                         .len = priv->pll_desc->initdata[0] };
 672
 673                 int result;
 674                 if (fe->ops.i2c_gate_ctrl)
 675                         fe->ops.i2c_gate_ctrl(fe, 1);
 676                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 677                         return result;
 678                 }
 679                 return 0;
 680         }
 681         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 682         return -EINVAL;
 683 }
 684
 685 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
 686         .release = dvb_pll_release,
 687         .sleep = dvb_pll_sleep,
 688         .init = dvb_pll_init,
 689         .set_params = dvb_pll_set_params,
 690         .calc_regs = dvb_pll_calc_regs,
 691         .get_frequency = dvb_pll_get_frequency,
 692         .get_bandwidth = dvb_pll_get_bandwidth,
 693 };
 694
 695 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 696                                     struct i2c_adapter *i2c,
 697                                     struct dvb_pll_desc *desc)
 698 {
 699         u8 b1 [] = { 0 };
 700         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
 701                                .buf = b1, .len = 1 };
 702         struct dvb_pll_priv *priv = NULL;
 703         int ret;
 704
 705         if (i2c != NULL) {
 706                 if (fe->ops.i2c_gate_ctrl)
 707                         fe->ops.i2c_gate_ctrl(fe, 1);
 708
 709                 ret = i2c_transfer (i2c, &msg, 1);
 710                 if (ret != 1)
 711                         return NULL;
 712                 if (fe->ops.i2c_gate_ctrl)
 713                              fe->ops.i2c_gate_ctrl(fe, 0);
 714         }
 715
 716         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
 717         if (priv == NULL)
 718                 return NULL;
 719
 720         priv->pll_i2c_address = pll_addr;
 721         priv->i2c = i2c;
 722         priv->pll_desc = desc;
 723
 724         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
 725                sizeof(struct dvb_tuner_ops));
 726
 727         strncpy(fe->ops.tuner_ops.info.name, desc->name,
 728                 sizeof(fe->ops.tuner_ops.info.name));
 729         fe->ops.tuner_ops.info.frequency_min = desc->min;
 730         fe->ops.tuner_ops.info.frequency_min = desc->max;
 731         if (!desc->initdata)
 732                 fe->ops.tuner_ops.init = NULL;
 733         if (!desc->sleepdata)
 734                 fe->ops.tuner_ops.sleep = NULL;
 735
 736         fe->tuner_priv = priv;
 737         return fe;
 738 }
 739 EXPORT_SYMBOL(dvb_pll_attach);
 740
 741 MODULE_DESCRIPTION("dvb pll library");
 742 MODULE_AUTHOR("Gerd Knorr");
 743 MODULE_LICENSE("GPL");