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 struct dvb_pll_desc {
  28         char *name;
  29         u32  min;
  30         u32  max;
  31         u32  iffreq;
  32         void (*set)(struct dvb_frontend *fe, u8 *buf,
  33                     const struct dvb_frontend_parameters *params);
  34         u8   *initdata;
  35         u8   *sleepdata;
  36         int  count;
  37         struct {
  38                 u32 limit;
  39                 u32 stepsize;
  40                 u8  config;
  41                 u8  cb;
  42         } entries[12];
  43 };
  44
  45 /* ----------------------------------------------------------- */
  46 /* descriptions                                                */
  47
  48 /* Set AGC TOP value to 103 dBuV:
  49         0x80 = Control Byte
  50         0x40 = 250 uA charge pump (irrelevant)
  51         0x18 = Aux Byte to follow
  52         0x06 = 64.5 kHz divider (irrelevant)
  53         0x01 = Disable Vt (aka sleep)
  54
  55         0x00 = AGC Time constant 2s Iagc = 300 nA (vs 0x80 = 9 nA)
  56         0x50 = AGC Take over point = 103 dBuV */
  57 static u8 tua603x_agc103[] = { 2, 0x80|0x40|0x18|0x06|0x01, 0x00|0x50 };
  58
  59 /*      0x04 = 166.67 kHz divider
  60
  61         0x80 = AGC Time constant 50ms Iagc = 9 uA
  62         0x20 = AGC Take over point = 112 dBuV */
  63 static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 };
  64
  65 static struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
  66         .name  = "Thomson dtt7579",
  67         .min   = 177000000,
  68         .max   = 858000000,
  69         .iffreq= 36166667,
  70         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
  71         .count = 4,
  72         .entries = {
  73                 {  443250000, 166667, 0xb4, 0x02 },
  74                 {  542000000, 166667, 0xb4, 0x08 },
  75                 {  771000000, 166667, 0xbc, 0x08 },
  76                 {  999999999, 166667, 0xf4, 0x08 },
  77         },
  78 };
  79
  80 static struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
  81         .name  = "Thomson dtt7610",
  82         .min   =  44000000,
  83         .max   = 958000000,
  84         .iffreq= 44000000,
  85         .count = 3,
  86         .entries = {
  87                 { 157250000, 62500, 0x8e, 0x39 },
  88                 { 454000000, 62500, 0x8e, 0x3a },
  89                 { 999999999, 62500, 0x8e, 0x3c },
  90         },
  91 };
  92
  93 static void thomson_dtt759x_bw(struct dvb_frontend *fe, u8 *buf,
  94                                const struct dvb_frontend_parameters *params)
  95 {
  96         if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
  97                 buf[3] |= 0x10;
  98 }
  99
 100 static struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
 101         .name  = "Thomson dtt759x",
 102         .min   = 177000000,
 103         .max   = 896000000,
 104         .set   = thomson_dtt759x_bw,
 105         .iffreq= 36166667,
 106         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
 107         .count = 5,
 108         .entries = {
 109                 {  264000000, 166667, 0xb4, 0x02 },
 110                 {  470000000, 166667, 0xbc, 0x02 },
 111                 {  735000000, 166667, 0xbc, 0x08 },
 112                 {  835000000, 166667, 0xf4, 0x08 },
 113                 {  999999999, 166667, 0xfc, 0x08 },
 114         },
 115 };
 116
 117 static struct dvb_pll_desc dvb_pll_lg_z201 = {
 118         .name  = "LG z201",
 119         .min   = 174000000,
 120         .max   = 862000000,
 121         .iffreq= 36166667,
 122         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
 123         .count = 5,
 124         .entries = {
 125                 {  157500000, 166667, 0xbc, 0x01 },
 126                 {  443250000, 166667, 0xbc, 0x02 },
 127                 {  542000000, 166667, 0xbc, 0x04 },
 128                 {  830000000, 166667, 0xf4, 0x04 },
 129                 {  999999999, 166667, 0xfc, 0x04 },
 130         },
 131 };
 132
 133 static struct dvb_pll_desc dvb_pll_microtune_4042 = {
 134         .name  = "Microtune 4042 FI5",
 135         .min   =  57000000,
 136         .max   = 858000000,
 137         .iffreq= 44000000,
 138         .count = 3,
 139         .entries = {
 140                 { 162000000, 62500, 0x8e, 0xa1 },
 141                 { 457000000, 62500, 0x8e, 0x91 },
 142                 { 999999999, 62500, 0x8e, 0x31 },
 143         },
 144 };
 145
 146 static struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
 147         /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
 148         .name  = "Thomson dtt761x",
 149         .min   =  57000000,
 150         .max   = 863000000,
 151         .iffreq= 44000000,
 152         .count = 3,
 153         .initdata = tua603x_agc103,
 154         .entries = {
 155                 { 147000000, 62500, 0x8e, 0x39 },
 156                 { 417000000, 62500, 0x8e, 0x3a },
 157                 { 999999999, 62500, 0x8e, 0x3c },
 158         },
 159 };
 160
 161 static 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 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 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                        const struct dvb_frontend_parameters *params)
 216 {
 217         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 218                 buf[3] |= 0x08;
 219 }
 220
 221 static 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                        const struct dvb_frontend_parameters *params)
 250 {
 251         if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
 252                 buf[3] |= 0x08;
 253 }
 254
 255 static 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 /* Infineon TUA6034
 270  * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
 271  */
 272 static struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
 273         .name  = "LG TDVS-H06xF",
 274         .min   =  54000000,
 275         .max   = 863000000,
 276         .iffreq= 44000000,
 277         .initdata = tua603x_agc103,
 278         .count = 3,
 279         .entries = {
 280                 {  165000000, 62500, 0xce, 0x01 },
 281                 {  450000000, 62500, 0xce, 0x02 },
 282                 {  999999999, 62500, 0xce, 0x04 },
 283         },
 284 };
 285
 286 /* Philips FMD1216ME
 287  * used in Medion Hybrid PCMCIA card and USB Box
 288  */
 289 static void fmd1216me_bw(struct dvb_frontend *fe, u8 *buf,
 290                          const struct dvb_frontend_parameters *params)
 291 {
 292         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 293             params->frequency >= 158870000)
 294                 buf[3] |= 0x08;
 295 }
 296
 297 static struct dvb_pll_desc dvb_pll_fmd1216me = {
 298         .name = "Philips FMD1216ME",
 299         .min = 50870000,
 300         .max = 858000000,
 301         .iffreq= 36125000,
 302         .set   = fmd1216me_bw,
 303         .initdata = tua603x_agc112,
 304         .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 },
 305         .count = 7,
 306         .entries = {
 307                 { 143870000, 166667, 0xbc, 0x41 },
 308                 { 158870000, 166667, 0xf4, 0x41 },
 309                 { 329870000, 166667, 0xbc, 0x42 },
 310                 { 441870000, 166667, 0xf4, 0x42 },
 311                 { 625870000, 166667, 0xbc, 0x44 },
 312                 { 803870000, 166667, 0xf4, 0x44 },
 313                 { 999999999, 166667, 0xfc, 0x44 },
 314         }
 315 };
 316
 317 /* ALPS TDED4
 318  * used in Nebula-Cards and USB boxes
 319  */
 320 static void tded4_bw(struct dvb_frontend *fe, u8 *buf,
 321                      const struct dvb_frontend_parameters *params)
 322 {
 323         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 324                 buf[3] |= 0x04;
 325 }
 326
 327 static struct dvb_pll_desc dvb_pll_tded4 = {
 328         .name = "ALPS TDED4",
 329         .min = 47000000,
 330         .max = 863000000,
 331         .iffreq= 36166667,
 332         .set   = tded4_bw,
 333         .count = 4,
 334         .entries = {
 335                 { 153000000, 166667, 0x85, 0x01 },
 336                 { 470000000, 166667, 0x85, 0x02 },
 337                 { 823000000, 166667, 0x85, 0x08 },
 338                 { 999999999, 166667, 0x85, 0x88 },
 339         }
 340 };
 341
 342 /* ALPS TDHU2
 343  * used in AverTVHD MCE A180
 344  */
 345 static struct dvb_pll_desc dvb_pll_tdhu2 = {
 346         .name = "ALPS TDHU2",
 347         .min = 54000000,
 348         .max = 864000000,
 349         .iffreq= 44000000,
 350         .count = 4,
 351         .entries = {
 352                 { 162000000, 62500, 0x85, 0x01 },
 353                 { 426000000, 62500, 0x85, 0x02 },
 354                 { 782000000, 62500, 0x85, 0x08 },
 355                 { 999999999, 62500, 0x85, 0x88 },
 356         }
 357 };
 358
 359 /* Philips TUV1236D
 360  * used in ATI HDTV Wonder
 361  */
 362 static void tuv1236d_rf(struct dvb_frontend *fe, u8 *buf,
 363                         const struct dvb_frontend_parameters *params)
 364 {
 365         switch (params->u.vsb.modulation) {
 366                 case QAM_64:
 367                 case QAM_256:
 368                         buf[3] |= 0x08;
 369                         break;
 370                 case VSB_8:
 371                 default:
 372                         buf[3] &= ~0x08;
 373         }
 374 }
 375
 376 static struct dvb_pll_desc dvb_pll_tuv1236d = {
 377         .name  = "Philips TUV1236D",
 378         .min   =  54000000,
 379         .max   = 864000000,
 380         .iffreq= 44000000,
 381         .set   = tuv1236d_rf,
 382         .count = 3,
 383         .entries = {
 384                 { 157250000, 62500, 0xc6, 0x41 },
 385                 { 454000000, 62500, 0xc6, 0x42 },
 386                 { 999999999, 62500, 0xc6, 0x44 },
 387         },
 388 };
 389
 390 /* Samsung TBMV30111IN / TBMV30712IN1
 391  * used in Air2PC ATSC - 2nd generation (nxt2002)
 392  */
 393 static struct dvb_pll_desc dvb_pll_samsung_tbmv = {
 394         .name = "Samsung TBMV30111IN / TBMV30712IN1",
 395         .min = 54000000,
 396         .max = 860000000,
 397         .iffreq= 44000000,
 398         .count = 6,
 399         .entries = {
 400                 { 172000000, 166667, 0xb4, 0x01 },
 401                 { 214000000, 166667, 0xb4, 0x02 },
 402                 { 467000000, 166667, 0xbc, 0x02 },
 403                 { 721000000, 166667, 0xbc, 0x08 },
 404                 { 841000000, 166667, 0xf4, 0x08 },
 405                 { 999999999, 166667, 0xfc, 0x02 },
 406         }
 407 };
 408
 409 /*
 410  * Philips SD1878 Tuner.
 411  */
 412 static struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
 413         .name  = "Philips SD1878",
 414         .min   =  950000,
 415         .max   = 2150000,
 416         .iffreq= 249, /* zero-IF, offset 249 is to round up */
 417         .count = 4,
 418         .entries = {
 419                 { 1250000, 500, 0xc4, 0x00},
 420                 { 1550000, 500, 0xc4, 0x40},
 421                 { 2050000, 500, 0xc4, 0x80},
 422                 { 2150000, 500, 0xc4, 0xc0},
 423         },
 424 };
 425
 426 /*
 427  * Philips TD1316 Tuner.
 428  */
 429 static void td1316_bw(struct dvb_frontend *fe, u8 *buf,
 430                       const struct dvb_frontend_parameters *params)
 431 {
 432         u8 band;
 433
 434         /* determine band */
 435         if (params->frequency < 161000000)
 436                 band = 1;
 437         else if (params->frequency < 444000000)
 438                 band = 2;
 439         else
 440                 band = 4;
 441
 442         buf[3] |= band;
 443
 444         /* setup PLL filter */
 445         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 446                 buf[3] |= 1 << 3;
 447 }
 448
 449 static struct dvb_pll_desc dvb_pll_philips_td1316 = {
 450         .name  = "Philips TD1316",
 451         .min   =  87000000,
 452         .max   = 895000000,
 453         .iffreq= 36166667,
 454         .set   = td1316_bw,
 455         .count = 9,
 456         .entries = {
 457                 {  93834000, 166667, 0xca, 0x60},
 458                 { 123834000, 166667, 0xca, 0xa0},
 459                 { 163834000, 166667, 0xca, 0xc0},
 460                 { 253834000, 166667, 0xca, 0x60},
 461                 { 383834000, 166667, 0xca, 0xa0},
 462                 { 443834000, 166667, 0xca, 0xc0},
 463                 { 583834000, 166667, 0xca, 0x60},
 464                 { 793834000, 166667, 0xca, 0xa0},
 465                 { 858834000, 166667, 0xca, 0xe0},
 466         },
 467 };
 468
 469 /* FE6600 used on DViCO Hybrid */
 470 static struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
 471         .name = "Thomson FE6600",
 472         .min =  44250000,
 473         .max = 858000000,
 474         .iffreq= 36125000,
 475         .count = 4,
 476         .entries = {
 477                 { 250000000, 166667, 0xb4, 0x12 },
 478                 { 455000000, 166667, 0xfe, 0x11 },
 479                 { 775500000, 166667, 0xbc, 0x18 },
 480                 { 999999999, 166667, 0xf4, 0x18 },
 481         }
 482 };
 483
 484 static void opera1_bw(struct dvb_frontend *fe, u8 *buf,
 485                       const struct dvb_frontend_parameters *params)
 486 {
 487         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 488                 buf[2] |= 0x08;
 489 }
 490
 491 static struct dvb_pll_desc dvb_pll_opera1 = {
 492         .name  = "Opera Tuner",
 493         .min   =  900000,
 494         .max   = 2250000,
 495         .iffreq= 0,
 496         .set   = opera1_bw,
 497         .count = 8,
 498         .entries = {
 499                 { 1064000, 500, 0xe5, 0xc6 },
 500                 { 1169000, 500, 0xe5, 0xe6 },
 501                 { 1299000, 500, 0xe5, 0x24 },
 502                 { 1444000, 500, 0xe5, 0x44 },
 503                 { 1606000, 500, 0xe5, 0x64 },
 504                 { 1777000, 500, 0xe5, 0x84 },
 505                 { 1941000, 500, 0xe5, 0xa4 },
 506                 { 2250000, 500, 0xe5, 0xc4 },
 507         }
 508 };
 509
 510 /* Philips FCV1236D
 511  */
 512 static struct dvb_pll_desc dvb_pll_fcv1236d = {
 513 /* Bit_0: RF Input select
 514  * Bit_1: 0=digital, 1=analog
 515  */
 516         .name  = "Philips FCV1236D",
 517         .min   =  53000000,
 518         .max   = 803000000,
 519         .iffreq= 44000000,
 520         .count = 3,
 521         .entries = {
 522                 { 159000000, 62500, 0x8e, 0xa0 },
 523                 { 453000000, 62500, 0x8e, 0x90 },
 524                 { 999999999, 62500, 0x8e, 0x30 },
 525         },
 526 };
 527
 528 /* ----------------------------------------------------------- */
 529
 530 static struct dvb_pll_desc *pll_list[] = {
 531         [DVB_PLL_UNDEFINED]              = NULL,
 532         [DVB_PLL_THOMSON_DTT7579]        = &dvb_pll_thomson_dtt7579,
 533         [DVB_PLL_THOMSON_DTT759X]        = &dvb_pll_thomson_dtt759x,
 534         [DVB_PLL_THOMSON_DTT7610]        = &dvb_pll_thomson_dtt7610,
 535         [DVB_PLL_LG_Z201]                = &dvb_pll_lg_z201,
 536         [DVB_PLL_MICROTUNE_4042]         = &dvb_pll_microtune_4042,
 537         [DVB_PLL_THOMSON_DTT761X]        = &dvb_pll_thomson_dtt761x,
 538         [DVB_PLL_UNKNOWN_1]              = &dvb_pll_unknown_1,
 539         [DVB_PLL_TUA6010XS]              = &dvb_pll_tua6010xs,
 540         [DVB_PLL_ENV57H1XD5]             = &dvb_pll_env57h1xd5,
 541         [DVB_PLL_TUA6034]                = &dvb_pll_tua6034,
 542         [DVB_PLL_LG_TDVS_H06XF]          = &dvb_pll_lg_tdvs_h06xf,
 543         [DVB_PLL_TDA665X]                = &dvb_pll_tda665x,
 544         [DVB_PLL_FMD1216ME]              = &dvb_pll_fmd1216me,
 545         [DVB_PLL_TDED4]                  = &dvb_pll_tded4,
 546         [DVB_PLL_TUV1236D]               = &dvb_pll_tuv1236d,
 547         [DVB_PLL_TDHU2]                  = &dvb_pll_tdhu2,
 548         [DVB_PLL_SAMSUNG_TBMV]           = &dvb_pll_samsung_tbmv,
 549         [DVB_PLL_PHILIPS_SD1878_TDA8261] = &dvb_pll_philips_sd1878_tda8261,
 550         [DVB_PLL_PHILIPS_TD1316]         = &dvb_pll_philips_td1316,
 551         [DVB_PLL_THOMSON_FE6600]         = &dvb_pll_thomson_fe6600,
 552         [DVB_PLL_OPERA1]                 = &dvb_pll_opera1,
 553         [DVB_PLL_FCV1236D]               = &dvb_pll_fcv1236d,
 554 };
 555
 556 /* ----------------------------------------------------------- */
 557
 558 struct dvb_pll_priv {
 559         /* pll number */
 560         int nr;
 561
 562         /* i2c details */
 563         int pll_i2c_address;
 564         struct i2c_adapter *i2c;
 565
 566         /* the PLL descriptor */
 567         struct dvb_pll_desc *pll_desc;
 568
 569         /* cached frequency/bandwidth */
 570         u32 frequency;
 571         u32 bandwidth;
 572 };
 573
 574 /* ----------------------------------------------------------- */
 575 /* code                                                        */
 576
 577 static int debug = 0;
 578 module_param(debug, int, 0644);
 579 MODULE_PARM_DESC(debug, "enable verbose debug messages");
 580
 581 static unsigned int dvb_pll_devcount;
 582
 583 static int dvb_pll_configure(struct dvb_frontend *fe, u8 *buf,
 584                              const struct dvb_frontend_parameters *params)
 585 {
 586         struct dvb_pll_priv *priv = fe->tuner_priv;
 587         struct dvb_pll_desc *desc = priv->pll_desc;
 588         u32 div;
 589         int i;
 590
 591         if (params->frequency != 0 && (params->frequency < desc->min ||
 592                                        params->frequency > desc->max))
 593                 return -EINVAL;
 594
 595         for (i = 0; i < desc->count; i++) {
 596                 if (params->frequency > desc->entries[i].limit)
 597                         continue;
 598                 break;
 599         }
 600
 601         if (debug)
 602                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
 603                        params->frequency, i, desc->count);
 604         if (i == desc->count)
 605                 return -EINVAL;
 606
 607         div = (params->frequency + desc->iffreq +
 608                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
 609         buf[0] = div >> 8;
 610         buf[1] = div & 0xff;
 611         buf[2] = desc->entries[i].config;
 612         buf[3] = desc->entries[i].cb;
 613
 614         if (desc->set)
 615                 desc->set(fe, buf, params);
 616
 617         if (debug)
 618                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 619                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
 620
 621         // calculate the frequency we set it to
 622         return (div * desc->entries[i].stepsize) - desc->iffreq;
 623 }
 624
 625 static int dvb_pll_release(struct dvb_frontend *fe)
 626 {
 627         kfree(fe->tuner_priv);
 628         fe->tuner_priv = NULL;
 629         return 0;
 630 }
 631
 632 static int dvb_pll_sleep(struct dvb_frontend *fe)
 633 {
 634         struct dvb_pll_priv *priv = fe->tuner_priv;
 635
 636         if (priv->i2c == NULL)
 637                 return -EINVAL;
 638
 639         if (priv->pll_desc->sleepdata) {
 640                 struct i2c_msg msg = { .flags = 0,
 641                         .addr = priv->pll_i2c_address,
 642                         .buf = priv->pll_desc->sleepdata + 1,
 643                         .len = priv->pll_desc->sleepdata[0] };
 644
 645                 int result;
 646
 647                 if (fe->ops.i2c_gate_ctrl)
 648                         fe->ops.i2c_gate_ctrl(fe, 1);
 649                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 650                         return result;
 651                 }
 652                 return 0;
 653         }
 654         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 655         return -EINVAL;
 656 }
 657
 658 static int dvb_pll_set_params(struct dvb_frontend *fe,
 659                               struct dvb_frontend_parameters *params)
 660 {
 661         struct dvb_pll_priv *priv = fe->tuner_priv;
 662         u8 buf[4];
 663         struct i2c_msg msg =
 664                 { .addr = priv->pll_i2c_address, .flags = 0,
 665                   .buf = buf, .len = sizeof(buf) };
 666         int result;
 667         u32 frequency = 0;
 668
 669         if (priv->i2c == NULL)
 670                 return -EINVAL;
 671
 672         if ((result = dvb_pll_configure(fe, buf, params)) < 0)
 673                 return result;
 674         else
 675                 frequency = result;
 676
 677         if (fe->ops.i2c_gate_ctrl)
 678                 fe->ops.i2c_gate_ctrl(fe, 1);
 679         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 680                 return result;
 681         }
 682
 683         priv->frequency = frequency;
 684         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 685
 686         return 0;
 687 }
 688
 689 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
 690                              struct dvb_frontend_parameters *params,
 691                              u8 *buf, int buf_len)
 692 {
 693         struct dvb_pll_priv *priv = fe->tuner_priv;
 694         int result;
 695         u32 frequency = 0;
 696
 697         if (buf_len < 5)
 698                 return -EINVAL;
 699
 700         if ((result = dvb_pll_configure(fe, buf+1, params)) < 0)
 701                 return result;
 702         else
 703                 frequency = result;
 704
 705         buf[0] = priv->pll_i2c_address;
 706
 707         priv->frequency = frequency;
 708         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 709
 710         return 5;
 711 }
 712
 713 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 714 {
 715         struct dvb_pll_priv *priv = fe->tuner_priv;
 716         *frequency = priv->frequency;
 717         return 0;
 718 }
 719
 720 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 721 {
 722         struct dvb_pll_priv *priv = fe->tuner_priv;
 723         *bandwidth = priv->bandwidth;
 724         return 0;
 725 }
 726
 727 static int dvb_pll_init(struct dvb_frontend *fe)
 728 {
 729         struct dvb_pll_priv *priv = fe->tuner_priv;
 730
 731         if (priv->i2c == NULL)
 732                 return -EINVAL;
 733
 734         if (priv->pll_desc->initdata) {
 735                 struct i2c_msg msg = { .flags = 0,
 736                         .addr = priv->pll_i2c_address,
 737                         .buf = priv->pll_desc->initdata + 1,
 738                         .len = priv->pll_desc->initdata[0] };
 739
 740                 int result;
 741                 if (fe->ops.i2c_gate_ctrl)
 742                         fe->ops.i2c_gate_ctrl(fe, 1);
 743                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 744                         return result;
 745                 }
 746                 return 0;
 747         }
 748         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 749         return -EINVAL;
 750 }
 751
 752 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
 753         .release = dvb_pll_release,
 754         .sleep = dvb_pll_sleep,
 755         .init = dvb_pll_init,
 756         .set_params = dvb_pll_set_params,
 757         .calc_regs = dvb_pll_calc_regs,
 758         .get_frequency = dvb_pll_get_frequency,
 759         .get_bandwidth = dvb_pll_get_bandwidth,
 760 };
 761
 762 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 763                                     struct i2c_adapter *i2c,
 764                                     unsigned int pll_desc_id)
 765 {
 766         u8 b1 [] = { 0 };
 767         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
 768                                .buf = b1, .len = 1 };
 769         struct dvb_pll_priv *priv = NULL;
 770         int ret;
 771         struct dvb_pll_desc *desc;
 772
 773         BUG_ON(pll_desc_id < 1 || pll_desc_id >= ARRAY_SIZE(pll_list));
 774
 775         desc = pll_list[pll_desc_id];
 776
 777         if (i2c != NULL) {
 778                 if (fe->ops.i2c_gate_ctrl)
 779                         fe->ops.i2c_gate_ctrl(fe, 1);
 780
 781                 ret = i2c_transfer (i2c, &msg, 1);
 782                 if (ret != 1)
 783                         return NULL;
 784                 if (fe->ops.i2c_gate_ctrl)
 785                              fe->ops.i2c_gate_ctrl(fe, 0);
 786         }
 787
 788         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
 789         if (priv == NULL)
 790                 return NULL;
 791
 792         priv->pll_i2c_address = pll_addr;
 793         priv->i2c = i2c;
 794         priv->pll_desc = desc;
 795         priv->nr = dvb_pll_devcount++;
 796
 797         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
 798                sizeof(struct dvb_tuner_ops));
 799
 800         strncpy(fe->ops.tuner_ops.info.name, desc->name,
 801                 sizeof(fe->ops.tuner_ops.info.name));
 802         fe->ops.tuner_ops.info.frequency_min = desc->min;
 803         fe->ops.tuner_ops.info.frequency_max = desc->max;
 804         if (!desc->initdata)
 805                 fe->ops.tuner_ops.init = NULL;
 806         if (!desc->sleepdata)
 807                 fe->ops.tuner_ops.sleep = NULL;
 808
 809         fe->tuner_priv = priv;
 810
 811         if (debug) {
 812                 printk("dvb-pll[%d]", priv->nr);
 813                 if (i2c != NULL)
 814                         printk(" %d-%04x", i2c_adapter_id(i2c), pll_addr);
 815                 printk(": id# %d (%s) attached\n", pll_desc_id, desc->name);
 816         }
 817
 818         return fe;
 819 }
 820 EXPORT_SYMBOL(dvb_pll_attach);
 821
 822 MODULE_DESCRIPTION("dvb pll library");
 823 MODULE_AUTHOR("Gerd Knorr");
 824 MODULE_LICENSE("GPL");