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         .count = 12,
 212         .entries = {
 213                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
 214                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 215                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 216                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 217                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
 218                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
 219                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 220                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 221                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
 222                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
 223                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 224                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
 225         }
 226 };
 227 EXPORT_SYMBOL(dvb_pll_tda665x);
 228
 229 /* Infineon TUA6034
 230  * used in LG TDTP E102P
 231  */
 232 static void tua6034_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 233 {
 234         if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
 235                 buf[3] |= 0x08;
 236 }
 237
 238 struct dvb_pll_desc dvb_pll_tua6034 = {
 239         .name  = "Infineon TUA6034",
 240         .min   =  44250000,
 241         .max   = 858000000,
 242         .iffreq= 36166667,
 243         .count = 3,
 244         .set   = tua6034_bw,
 245         .entries = {
 246                 {  174500000, 62500, 0xce, 0x01 },
 247                 {  230000000, 62500, 0xce, 0x02 },
 248                 {  999999999, 62500, 0xce, 0x04 },
 249         },
 250 };
 251 EXPORT_SYMBOL(dvb_pll_tua6034);
 252
 253 /* Infineon TUA6034
 254  * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
 255  */
 256 struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
 257         .name  = "LG TDVS-H06xF",
 258         .min   =  54000000,
 259         .max   = 863000000,
 260         .iffreq= 44000000,
 261         .initdata = tua603x_agc103,
 262         .count = 3,
 263         .entries = {
 264                 {  165000000, 62500, 0xce, 0x01 },
 265                 {  450000000, 62500, 0xce, 0x02 },
 266                 {  999999999, 62500, 0xce, 0x04 },
 267         },
 268 };
 269 EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf);
 270
 271 /* Philips FMD1216ME
 272  * used in Medion Hybrid PCMCIA card and USB Box
 273  */
 274 static void fmd1216me_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 275 {
 276         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 277             params->frequency >= 158870000)
 278                 buf[3] |= 0x08;
 279 }
 280
 281 struct dvb_pll_desc dvb_pll_fmd1216me = {
 282         .name = "Philips FMD1216ME",
 283         .min = 50870000,
 284         .max = 858000000,
 285         .iffreq= 36125000,
 286         .set   = fmd1216me_bw,
 287         .count = 7,
 288         .entries = {
 289                 { 143870000, 166667, 0xbc, 0x41 },
 290                 { 158870000, 166667, 0xf4, 0x41 },
 291                 { 329870000, 166667, 0xbc, 0x42 },
 292                 { 441870000, 166667, 0xf4, 0x42 },
 293                 { 625870000, 166667, 0xbc, 0x44 },
 294                 { 803870000, 166667, 0xf4, 0x44 },
 295                 { 999999999, 166667, 0xfc, 0x44 },
 296         }
 297 };
 298 EXPORT_SYMBOL(dvb_pll_fmd1216me);
 299
 300 /* ALPS TDED4
 301  * used in Nebula-Cards and USB boxes
 302  */
 303 static void tded4_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 304 {
 305         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 306                 buf[3] |= 0x04;
 307 }
 308
 309 struct dvb_pll_desc dvb_pll_tded4 = {
 310         .name = "ALPS TDED4",
 311         .min = 47000000,
 312         .max = 863000000,
 313         .iffreq= 36166667,
 314         .set   = tded4_bw,
 315         .count = 4,
 316         .entries = {
 317                 { 153000000, 166667, 0x85, 0x01 },
 318                 { 470000000, 166667, 0x85, 0x02 },
 319                 { 823000000, 166667, 0x85, 0x08 },
 320                 { 999999999, 166667, 0x85, 0x88 },
 321         }
 322 };
 323 EXPORT_SYMBOL(dvb_pll_tded4);
 324
 325 /* ALPS TDHU2
 326  * used in AverTVHD MCE A180
 327  */
 328 struct dvb_pll_desc dvb_pll_tdhu2 = {
 329         .name = "ALPS TDHU2",
 330         .min = 54000000,
 331         .max = 864000000,
 332         .iffreq= 44000000,
 333         .count = 4,
 334         .entries = {
 335                 { 162000000, 62500, 0x85, 0x01 },
 336                 { 426000000, 62500, 0x85, 0x02 },
 337                 { 782000000, 62500, 0x85, 0x08 },
 338                 { 999999999, 62500, 0x85, 0x88 },
 339         }
 340 };
 341 EXPORT_SYMBOL(dvb_pll_tdhu2);
 342
 343 /* Philips TUV1236D
 344  * used in ATI HDTV Wonder
 345  */
 346 static void tuv1236d_rf(u8 *buf, const struct dvb_frontend_parameters *params)
 347 {
 348         switch (params->u.vsb.modulation) {
 349                 case QAM_64:
 350                 case QAM_256:
 351                         buf[3] |= 0x08;
 352                         break;
 353                 case VSB_8:
 354                 default:
 355                         buf[3] &= ~0x08;
 356         }
 357 }
 358
 359 struct dvb_pll_desc dvb_pll_tuv1236d = {
 360         .name  = "Philips TUV1236D",
 361         .min   =  54000000,
 362         .max   = 864000000,
 363         .iffreq= 44000000,
 364         .set   = tuv1236d_rf,
 365         .count = 3,
 366         .entries = {
 367                 { 157250000, 62500, 0xc6, 0x41 },
 368                 { 454000000, 62500, 0xc6, 0x42 },
 369                 { 999999999, 62500, 0xc6, 0x44 },
 370         },
 371 };
 372 EXPORT_SYMBOL(dvb_pll_tuv1236d);
 373
 374 /* Samsung TBMV30111IN / TBMV30712IN1
 375  * used in Air2PC ATSC - 2nd generation (nxt2002)
 376  */
 377 struct dvb_pll_desc dvb_pll_samsung_tbmv = {
 378         .name = "Samsung TBMV30111IN / TBMV30712IN1",
 379         .min = 54000000,
 380         .max = 860000000,
 381         .iffreq= 44000000,
 382         .count = 6,
 383         .entries = {
 384                 { 172000000, 166667, 0xb4, 0x01 },
 385                 { 214000000, 166667, 0xb4, 0x02 },
 386                 { 467000000, 166667, 0xbc, 0x02 },
 387                 { 721000000, 166667, 0xbc, 0x08 },
 388                 { 841000000, 166667, 0xf4, 0x08 },
 389                 { 999999999, 166667, 0xfc, 0x02 },
 390         }
 391 };
 392 EXPORT_SYMBOL(dvb_pll_samsung_tbmv);
 393
 394 /*
 395  * Philips SD1878 Tuner.
 396  */
 397 struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
 398         .name  = "Philips SD1878",
 399         .min   =  950000,
 400         .max   = 2150000,
 401         .iffreq= 249, /* zero-IF, offset 249 is to round up */
 402         .count = 4,
 403         .entries = {
 404                 { 1250000, 500, 0xc4, 0x00},
 405                 { 1550000, 500, 0xc4, 0x40},
 406                 { 2050000, 500, 0xc4, 0x80},
 407                 { 2150000, 500, 0xc4, 0xc0},
 408         },
 409 };
 410 EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261);
 411
 412 /*
 413  * Philips TD1316 Tuner.
 414  */
 415 static void td1316_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 416 {
 417         u8 band;
 418
 419         /* determine band */
 420         if (params->frequency < 161000000)
 421                 band = 1;
 422         else if (params->frequency < 444000000)
 423                 band = 2;
 424         else
 425                 band = 4;
 426
 427         buf[3] |= band;
 428
 429         /* setup PLL filter */
 430         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 431                 buf[3] |= 1 << 3;
 432 }
 433
 434 struct dvb_pll_desc dvb_pll_philips_td1316 = {
 435         .name  = "Philips TD1316",
 436         .min   =  87000000,
 437         .max   = 895000000,
 438         .iffreq= 36166667,
 439         .set   = td1316_bw,
 440         .count = 9,
 441         .entries = {
 442                 {  93834000, 166667, 0xca, 0x60},
 443                 { 123834000, 166667, 0xca, 0xa0},
 444                 { 163834000, 166667, 0xca, 0xc0},
 445                 { 253834000, 166667, 0xca, 0x60},
 446                 { 383834000, 166667, 0xca, 0xa0},
 447                 { 443834000, 166667, 0xca, 0xc0},
 448                 { 583834000, 166667, 0xca, 0x60},
 449                 { 793834000, 166667, 0xca, 0xa0},
 450                 { 858834000, 166667, 0xca, 0xe0},
 451         },
 452 };
 453 EXPORT_SYMBOL(dvb_pll_philips_td1316);
 454
 455 /* FE6600 used on DViCO Hybrid */
 456 struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
 457         .name = "Thomson FE6600",
 458         .min =  44250000,
 459         .max = 858000000,
 460         .iffreq= 36125000,
 461         .count = 4,
 462         .entries = {
 463                 { 250000000, 166667, 0xb4, 0x12 },
 464                 { 455000000, 166667, 0xfe, 0x11 },
 465                 { 775500000, 166667, 0xbc, 0x18 },
 466                 { 999999999, 166667, 0xf4, 0x18 },
 467         }
 468 };
 469 EXPORT_SYMBOL(dvb_pll_thomson_fe6600);
 470 static void opera1_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 471 {
 472         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 473                 buf[2] |= 0x08;
 474 }
 475
 476 struct dvb_pll_desc dvb_pll_opera1 = {
 477         .name  = "Opera Tuner",
 478         .min   =  900000,
 479         .max   = 2250000,
 480         .iffreq= 0,
 481         .set   = opera1_bw,
 482         .count = 8,
 483         .entries = {
 484                 { 1064000, 500, 0xe5, 0xc6 },
 485                 { 1169000, 500, 0xe5, 0xe6 },
 486                 { 1299000, 500, 0xe5, 0x24 },
 487                 { 1444000, 500, 0xe5, 0x44 },
 488                 { 1606000, 500, 0xe5, 0x64 },
 489                 { 1777000, 500, 0xe5, 0x84 },
 490                 { 1941000, 500, 0xe5, 0xa4 },
 491                 { 2250000, 500, 0xe5, 0xc4 },
 492         }
 493 };
 494 EXPORT_SYMBOL(dvb_pll_opera1);
 495
 496 struct dvb_pll_priv {
 497         /* i2c details */
 498         int pll_i2c_address;
 499         struct i2c_adapter *i2c;
 500
 501         /* the PLL descriptor */
 502         struct dvb_pll_desc *pll_desc;
 503
 504         /* cached frequency/bandwidth */
 505         u32 frequency;
 506         u32 bandwidth;
 507 };
 508
 509 /* ----------------------------------------------------------- */
 510 /* code                                                        */
 511
 512 static int debug = 0;
 513 module_param(debug, int, 0644);
 514 MODULE_PARM_DESC(debug, "enable verbose debug messages");
 515
 516 int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
 517                       const struct dvb_frontend_parameters *params)
 518 {
 519         u32 div;
 520         int i;
 521
 522         if (params->frequency != 0 && (params->frequency < desc->min ||
 523                                        params->frequency > desc->max))
 524                 return -EINVAL;
 525
 526         for (i = 0; i < desc->count; i++) {
 527                 if (params->frequency > desc->entries[i].limit)
 528                         continue;
 529                 break;
 530         }
 531
 532         if (debug)
 533                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
 534                        params->frequency, i, desc->count);
 535         if (i == desc->count)
 536                 return -EINVAL;
 537
 538         div = (params->frequency + desc->iffreq +
 539                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
 540         buf[0] = div >> 8;
 541         buf[1] = div & 0xff;
 542         buf[2] = desc->entries[i].config;
 543         buf[3] = desc->entries[i].cb;
 544
 545         if (desc->set)
 546                 desc->set(buf, params);
 547
 548         if (debug)
 549                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 550                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
 551
 552         // calculate the frequency we set it to
 553         return (div * desc->entries[i].stepsize) - desc->iffreq;
 554 }
 555 EXPORT_SYMBOL(dvb_pll_configure);
 556
 557 static int dvb_pll_release(struct dvb_frontend *fe)
 558 {
 559         kfree(fe->tuner_priv);
 560         fe->tuner_priv = NULL;
 561         return 0;
 562 }
 563
 564 static int dvb_pll_sleep(struct dvb_frontend *fe)
 565 {
 566         struct dvb_pll_priv *priv = fe->tuner_priv;
 567
 568         if (priv->i2c == NULL)
 569                 return -EINVAL;
 570
 571         if (priv->pll_desc->sleepdata) {
 572                 struct i2c_msg msg = { .flags = 0,
 573                         .addr = priv->pll_i2c_address,
 574                         .buf = priv->pll_desc->sleepdata + 1,
 575                         .len = priv->pll_desc->sleepdata[0] };
 576
 577                 int result;
 578
 579                 if (fe->ops.i2c_gate_ctrl)
 580                         fe->ops.i2c_gate_ctrl(fe, 1);
 581                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 582                         return result;
 583                 }
 584                 return 0;
 585         }
 586         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 587         return -EINVAL;
 588 }
 589
 590 static int dvb_pll_set_params(struct dvb_frontend *fe,
 591                               struct dvb_frontend_parameters *params)
 592 {
 593         struct dvb_pll_priv *priv = fe->tuner_priv;
 594         u8 buf[4];
 595         struct i2c_msg msg =
 596                 { .addr = priv->pll_i2c_address, .flags = 0,
 597                   .buf = buf, .len = sizeof(buf) };
 598         int result;
 599         u32 frequency = 0;
 600
 601         if (priv->i2c == NULL)
 602                 return -EINVAL;
 603
 604         if ((result = dvb_pll_configure(priv->pll_desc, buf, params)) < 0)
 605                 return result;
 606         else
 607                 frequency = result;
 608
 609         if (fe->ops.i2c_gate_ctrl)
 610                 fe->ops.i2c_gate_ctrl(fe, 1);
 611         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 612                 return result;
 613         }
 614
 615         priv->frequency = frequency;
 616         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 617
 618         return 0;
 619 }
 620
 621 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
 622                              struct dvb_frontend_parameters *params,
 623                              u8 *buf, int buf_len)
 624 {
 625         struct dvb_pll_priv *priv = fe->tuner_priv;
 626         int result;
 627         u32 frequency = 0;
 628
 629         if (buf_len < 5)
 630                 return -EINVAL;
 631
 632         if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params)) < 0)
 633                 return result;
 634         else
 635                 frequency = result;
 636
 637         buf[0] = priv->pll_i2c_address;
 638
 639         priv->frequency = frequency;
 640         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 641
 642         return 5;
 643 }
 644
 645 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 646 {
 647         struct dvb_pll_priv *priv = fe->tuner_priv;
 648         *frequency = priv->frequency;
 649         return 0;
 650 }
 651
 652 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 653 {
 654         struct dvb_pll_priv *priv = fe->tuner_priv;
 655         *bandwidth = priv->bandwidth;
 656         return 0;
 657 }
 658
 659 static int dvb_pll_init(struct dvb_frontend *fe)
 660 {
 661         struct dvb_pll_priv *priv = fe->tuner_priv;
 662
 663         if (priv->i2c == NULL)
 664                 return -EINVAL;
 665
 666         if (priv->pll_desc->initdata) {
 667                 struct i2c_msg msg = { .flags = 0,
 668                         .addr = priv->pll_i2c_address,
 669                         .buf = priv->pll_desc->initdata + 1,
 670                         .len = priv->pll_desc->initdata[0] };
 671
 672                 int result;
 673                 if (fe->ops.i2c_gate_ctrl)
 674                         fe->ops.i2c_gate_ctrl(fe, 1);
 675                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 676                         return result;
 677                 }
 678                 return 0;
 679         }
 680         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 681         return -EINVAL;
 682 }
 683
 684 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
 685         .release = dvb_pll_release,
 686         .sleep = dvb_pll_sleep,
 687         .init = dvb_pll_init,
 688         .set_params = dvb_pll_set_params,
 689         .calc_regs = dvb_pll_calc_regs,
 690         .get_frequency = dvb_pll_get_frequency,
 691         .get_bandwidth = dvb_pll_get_bandwidth,
 692 };
 693
 694 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 695                                     struct i2c_adapter *i2c,
 696                                     struct dvb_pll_desc *desc)
 697 {
 698         u8 b1 [] = { 0 };
 699         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
 700                                .buf = b1, .len = 1 };
 701         struct dvb_pll_priv *priv = NULL;
 702         int ret;
 703
 704         if (i2c != NULL) {
 705                 if (fe->ops.i2c_gate_ctrl)
 706                         fe->ops.i2c_gate_ctrl(fe, 1);
 707
 708                 ret = i2c_transfer (i2c, &msg, 1);
 709                 if (ret != 1)
 710                         return NULL;
 711                 if (fe->ops.i2c_gate_ctrl)
 712                              fe->ops.i2c_gate_ctrl(fe, 0);
 713         }
 714
 715         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
 716         if (priv == NULL)
 717                 return NULL;
 718
 719         priv->pll_i2c_address = pll_addr;
 720         priv->i2c = i2c;
 721         priv->pll_desc = desc;
 722
 723         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
 724                sizeof(struct dvb_tuner_ops));
 725
 726         strncpy(fe->ops.tuner_ops.info.name, desc->name,
 727                 sizeof(fe->ops.tuner_ops.info.name));
 728         fe->ops.tuner_ops.info.frequency_min = desc->min;
 729         fe->ops.tuner_ops.info.frequency_min = desc->max;
 730         if (!desc->initdata)
 731                 fe->ops.tuner_ops.init = NULL;
 732         if (!desc->sleepdata)
 733                 fe->ops.tuner_ops.sleep = NULL;
 734
 735         fe->tuner_priv = priv;
 736         return fe;
 737 }
 738 EXPORT_SYMBOL(dvb_pll_attach);
 739
 740 MODULE_DESCRIPTION("dvb pll library");
 741 MODULE_AUTHOR("Gerd Knorr");
 742 MODULE_LICENSE("GPL");