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 /*      0x04 = 166.67 kHz divider
  42
  43         0x80 = AGC Time constant 50ms Iagc = 9 uA
  44         0x20 = AGC Take over point = 112 dBuV */
  45 static u8 tua603x_agc112[] = { 2, 0x80|0x40|0x18|0x04|0x01, 0x80|0x20 };
  46
  47 struct dvb_pll_desc dvb_pll_thomson_dtt7579 = {
  48         .name  = "Thomson dtt7579",
  49         .min   = 177000000,
  50         .max   = 858000000,
  51         .iffreq= 36166667,
  52         .sleepdata = (u8[]){ 2, 0xb4, 0x03 },
  53         .count = 4,
  54         .entries = {
  55                 {  443250000, 166667, 0xb4, 0x02 },
  56                 {  542000000, 166667, 0xb4, 0x08 },
  57                 {  771000000, 166667, 0xbc, 0x08 },
  58                 {  999999999, 166667, 0xf4, 0x08 },
  59         },
  60 };
  61 EXPORT_SYMBOL(dvb_pll_thomson_dtt7579);
  62
  63 struct dvb_pll_desc dvb_pll_thomson_dtt7610 = {
  64         .name  = "Thomson dtt7610",
  65         .min   =  44000000,
  66         .max   = 958000000,
  67         .iffreq= 44000000,
  68         .count = 3,
  69         .entries = {
  70                 { 157250000, 62500, 0x8e, 0x39 },
  71                 { 454000000, 62500, 0x8e, 0x3a },
  72                 { 999999999, 62500, 0x8e, 0x3c },
  73         },
  74 };
  75 EXPORT_SYMBOL(dvb_pll_thomson_dtt7610);
  76
  77 static void thomson_dtt759x_bw(u8 *buf,
  78                                const struct dvb_frontend_parameters *params)
  79 {
  80         if (BANDWIDTH_7_MHZ == params->u.ofdm.bandwidth)
  81                 buf[3] |= 0x10;
  82 }
  83
  84 struct dvb_pll_desc dvb_pll_thomson_dtt759x = {
  85         .name  = "Thomson dtt759x",
  86         .min   = 177000000,
  87         .max   = 896000000,
  88         .set   = thomson_dtt759x_bw,
  89         .iffreq= 36166667,
  90         .sleepdata = (u8[]){ 2, 0x84, 0x03 },
  91         .count = 5,
  92         .entries = {
  93                 {  264000000, 166667, 0xb4, 0x02 },
  94                 {  470000000, 166667, 0xbc, 0x02 },
  95                 {  735000000, 166667, 0xbc, 0x08 },
  96                 {  835000000, 166667, 0xf4, 0x08 },
  97                 {  999999999, 166667, 0xfc, 0x08 },
  98         },
  99 };
 100 EXPORT_SYMBOL(dvb_pll_thomson_dtt759x);
 101
 102 struct dvb_pll_desc dvb_pll_lg_z201 = {
 103         .name  = "LG z201",
 104         .min   = 174000000,
 105         .max   = 862000000,
 106         .iffreq= 36166667,
 107         .sleepdata = (u8[]){ 2, 0xbc, 0x03 },
 108         .count = 5,
 109         .entries = {
 110                 {  157500000, 166667, 0xbc, 0x01 },
 111                 {  443250000, 166667, 0xbc, 0x02 },
 112                 {  542000000, 166667, 0xbc, 0x04 },
 113                 {  830000000, 166667, 0xf4, 0x04 },
 114                 {  999999999, 166667, 0xfc, 0x04 },
 115         },
 116 };
 117 EXPORT_SYMBOL(dvb_pll_lg_z201);
 118
 119 struct dvb_pll_desc dvb_pll_microtune_4042 = {
 120         .name  = "Microtune 4042 FI5",
 121         .min   =  57000000,
 122         .max   = 858000000,
 123         .iffreq= 44000000,
 124         .count = 3,
 125         .entries = {
 126                 { 162000000, 62500, 0x8e, 0xa1 },
 127                 { 457000000, 62500, 0x8e, 0x91 },
 128                 { 999999999, 62500, 0x8e, 0x31 },
 129         },
 130 };
 131 EXPORT_SYMBOL(dvb_pll_microtune_4042);
 132
 133 struct dvb_pll_desc dvb_pll_thomson_dtt761x = {
 134         /* DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A */
 135         .name  = "Thomson dtt761x",
 136         .min   =  57000000,
 137         .max   = 863000000,
 138         .iffreq= 44000000,
 139         .count = 3,
 140         .initdata = tua603x_agc103,
 141         .entries = {
 142                 { 147000000, 62500, 0x8e, 0x39 },
 143                 { 417000000, 62500, 0x8e, 0x3a },
 144                 { 999999999, 62500, 0x8e, 0x3c },
 145         },
 146 };
 147 EXPORT_SYMBOL(dvb_pll_thomson_dtt761x);
 148
 149 struct dvb_pll_desc dvb_pll_unknown_1 = {
 150         .name  = "unknown 1", /* used by dntv live dvb-t */
 151         .min   = 174000000,
 152         .max   = 862000000,
 153         .iffreq= 36166667,
 154         .count = 9,
 155         .entries = {
 156                 {  150000000, 166667, 0xb4, 0x01 },
 157                 {  173000000, 166667, 0xbc, 0x01 },
 158                 {  250000000, 166667, 0xb4, 0x02 },
 159                 {  400000000, 166667, 0xbc, 0x02 },
 160                 {  420000000, 166667, 0xf4, 0x02 },
 161                 {  470000000, 166667, 0xfc, 0x02 },
 162                 {  600000000, 166667, 0xbc, 0x08 },
 163                 {  730000000, 166667, 0xf4, 0x08 },
 164                 {  999999999, 166667, 0xfc, 0x08 },
 165         },
 166 };
 167 EXPORT_SYMBOL(dvb_pll_unknown_1);
 168
 169 /* Infineon TUA6010XS
 170  * used in Thomson Cable Tuner
 171  */
 172 struct dvb_pll_desc dvb_pll_tua6010xs = {
 173         .name  = "Infineon TUA6010XS",
 174         .min   =  44250000,
 175         .max   = 858000000,
 176         .iffreq= 36125000,
 177         .count = 3,
 178         .entries = {
 179                 {  115750000, 62500, 0x8e, 0x03 },
 180                 {  403250000, 62500, 0x8e, 0x06 },
 181                 {  999999999, 62500, 0x8e, 0x85 },
 182         },
 183 };
 184 EXPORT_SYMBOL(dvb_pll_tua6010xs);
 185
 186 /* Panasonic env57h1xd5 (some Philips PLL ?) */
 187 struct dvb_pll_desc dvb_pll_env57h1xd5 = {
 188         .name  = "Panasonic ENV57H1XD5",
 189         .min   =  44250000,
 190         .max   = 858000000,
 191         .iffreq= 36125000,
 192         .count = 4,
 193         .entries = {
 194                 {  153000000, 166667, 0xc2, 0x41 },
 195                 {  470000000, 166667, 0xc2, 0x42 },
 196                 {  526000000, 166667, 0xc2, 0x84 },
 197                 {  999999999, 166667, 0xc2, 0xa4 },
 198         },
 199 };
 200 EXPORT_SYMBOL(dvb_pll_env57h1xd5);
 201
 202 /* Philips TDA6650/TDA6651
 203  * used in Panasonic ENV77H11D5
 204  */
 205 static void tda665x_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 206 {
 207         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 208                 buf[3] |= 0x08;
 209 }
 210
 211 struct dvb_pll_desc dvb_pll_tda665x = {
 212         .name  = "Philips TDA6650/TDA6651",
 213         .min   =  44250000,
 214         .max   = 858000000,
 215         .set   = tda665x_bw,
 216         .iffreq= 36166667,
 217         .initdata = (u8[]){ 4, 0x0b, 0xf5, 0x85, 0xab },
 218         .count = 12,
 219         .entries = {
 220                 {   93834000, 166667, 0xca, 0x61 /* 011 0 0 0  01 */ },
 221                 {  123834000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 222                 {  161000000, 166667, 0xca, 0xa1 /* 101 0 0 0  01 */ },
 223                 {  163834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 224                 {  253834000, 166667, 0xca, 0x62 /* 011 0 0 0  10 */ },
 225                 {  383834000, 166667, 0xca, 0xa2 /* 101 0 0 0  10 */ },
 226                 {  443834000, 166667, 0xca, 0xc2 /* 110 0 0 0  10 */ },
 227                 {  444000000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 228                 {  583834000, 166667, 0xca, 0x64 /* 011 0 0 1  00 */ },
 229                 {  793834000, 166667, 0xca, 0xa4 /* 101 0 0 1  00 */ },
 230                 {  444834000, 166667, 0xca, 0xc4 /* 110 0 0 1  00 */ },
 231                 {  861000000, 166667, 0xca, 0xe4 /* 111 0 0 1  00 */ },
 232         }
 233 };
 234 EXPORT_SYMBOL(dvb_pll_tda665x);
 235
 236 /* Infineon TUA6034
 237  * used in LG TDTP E102P
 238  */
 239 static void tua6034_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 240 {
 241         if (BANDWIDTH_7_MHZ != params->u.ofdm.bandwidth)
 242                 buf[3] |= 0x08;
 243 }
 244
 245 struct dvb_pll_desc dvb_pll_tua6034 = {
 246         .name  = "Infineon TUA6034",
 247         .min   =  44250000,
 248         .max   = 858000000,
 249         .iffreq= 36166667,
 250         .count = 3,
 251         .set   = tua6034_bw,
 252         .entries = {
 253                 {  174500000, 62500, 0xce, 0x01 },
 254                 {  230000000, 62500, 0xce, 0x02 },
 255                 {  999999999, 62500, 0xce, 0x04 },
 256         },
 257 };
 258 EXPORT_SYMBOL(dvb_pll_tua6034);
 259
 260 /* Infineon TUA6034
 261  * used in LG TDVS-H061F, LG TDVS-H062F and LG TDVS-H064F
 262  */
 263 struct dvb_pll_desc dvb_pll_lg_tdvs_h06xf = {
 264         .name  = "LG TDVS-H06xF",
 265         .min   =  54000000,
 266         .max   = 863000000,
 267         .iffreq= 44000000,
 268         .initdata = tua603x_agc103,
 269         .count = 3,
 270         .entries = {
 271                 {  165000000, 62500, 0xce, 0x01 },
 272                 {  450000000, 62500, 0xce, 0x02 },
 273                 {  999999999, 62500, 0xce, 0x04 },
 274         },
 275 };
 276 EXPORT_SYMBOL(dvb_pll_lg_tdvs_h06xf);
 277
 278 /* Philips FMD1216ME
 279  * used in Medion Hybrid PCMCIA card and USB Box
 280  */
 281 static void fmd1216me_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 282 {
 283         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ &&
 284             params->frequency >= 158870000)
 285                 buf[3] |= 0x08;
 286 }
 287
 288 struct dvb_pll_desc dvb_pll_fmd1216me = {
 289         .name = "Philips FMD1216ME",
 290         .min = 50870000,
 291         .max = 858000000,
 292         .iffreq= 36125000,
 293         .set   = fmd1216me_bw,
 294         .initdata = tua603x_agc112,
 295         .sleepdata = (u8[]){ 4, 0x9c, 0x60, 0x85, 0x54 },
 296         .count = 7,
 297         .entries = {
 298                 { 143870000, 166667, 0xbc, 0x41 },
 299                 { 158870000, 166667, 0xf4, 0x41 },
 300                 { 329870000, 166667, 0xbc, 0x42 },
 301                 { 441870000, 166667, 0xf4, 0x42 },
 302                 { 625870000, 166667, 0xbc, 0x44 },
 303                 { 803870000, 166667, 0xf4, 0x44 },
 304                 { 999999999, 166667, 0xfc, 0x44 },
 305         }
 306 };
 307 EXPORT_SYMBOL(dvb_pll_fmd1216me);
 308
 309 /* ALPS TDED4
 310  * used in Nebula-Cards and USB boxes
 311  */
 312 static void tded4_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 313 {
 314         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 315                 buf[3] |= 0x04;
 316 }
 317
 318 struct dvb_pll_desc dvb_pll_tded4 = {
 319         .name = "ALPS TDED4",
 320         .min = 47000000,
 321         .max = 863000000,
 322         .iffreq= 36166667,
 323         .set   = tded4_bw,
 324         .count = 4,
 325         .entries = {
 326                 { 153000000, 166667, 0x85, 0x01 },
 327                 { 470000000, 166667, 0x85, 0x02 },
 328                 { 823000000, 166667, 0x85, 0x08 },
 329                 { 999999999, 166667, 0x85, 0x88 },
 330         }
 331 };
 332 EXPORT_SYMBOL(dvb_pll_tded4);
 333
 334 /* ALPS TDHU2
 335  * used in AverTVHD MCE A180
 336  */
 337 struct dvb_pll_desc dvb_pll_tdhu2 = {
 338         .name = "ALPS TDHU2",
 339         .min = 54000000,
 340         .max = 864000000,
 341         .iffreq= 44000000,
 342         .count = 4,
 343         .entries = {
 344                 { 162000000, 62500, 0x85, 0x01 },
 345                 { 426000000, 62500, 0x85, 0x02 },
 346                 { 782000000, 62500, 0x85, 0x08 },
 347                 { 999999999, 62500, 0x85, 0x88 },
 348         }
 349 };
 350 EXPORT_SYMBOL(dvb_pll_tdhu2);
 351
 352 /* Philips TUV1236D
 353  * used in ATI HDTV Wonder
 354  */
 355 static void tuv1236d_rf(u8 *buf, const struct dvb_frontend_parameters *params)
 356 {
 357         switch (params->u.vsb.modulation) {
 358                 case QAM_64:
 359                 case QAM_256:
 360                         buf[3] |= 0x08;
 361                         break;
 362                 case VSB_8:
 363                 default:
 364                         buf[3] &= ~0x08;
 365         }
 366 }
 367
 368 struct dvb_pll_desc dvb_pll_tuv1236d = {
 369         .name  = "Philips TUV1236D",
 370         .min   =  54000000,
 371         .max   = 864000000,
 372         .iffreq= 44000000,
 373         .set   = tuv1236d_rf,
 374         .count = 3,
 375         .entries = {
 376                 { 157250000, 62500, 0xc6, 0x41 },
 377                 { 454000000, 62500, 0xc6, 0x42 },
 378                 { 999999999, 62500, 0xc6, 0x44 },
 379         },
 380 };
 381 EXPORT_SYMBOL(dvb_pll_tuv1236d);
 382
 383 /* Samsung TBMV30111IN / TBMV30712IN1
 384  * used in Air2PC ATSC - 2nd generation (nxt2002)
 385  */
 386 struct dvb_pll_desc dvb_pll_samsung_tbmv = {
 387         .name = "Samsung TBMV30111IN / TBMV30712IN1",
 388         .min = 54000000,
 389         .max = 860000000,
 390         .iffreq= 44000000,
 391         .count = 6,
 392         .entries = {
 393                 { 172000000, 166667, 0xb4, 0x01 },
 394                 { 214000000, 166667, 0xb4, 0x02 },
 395                 { 467000000, 166667, 0xbc, 0x02 },
 396                 { 721000000, 166667, 0xbc, 0x08 },
 397                 { 841000000, 166667, 0xf4, 0x08 },
 398                 { 999999999, 166667, 0xfc, 0x02 },
 399         }
 400 };
 401 EXPORT_SYMBOL(dvb_pll_samsung_tbmv);
 402
 403 /*
 404  * Philips SD1878 Tuner.
 405  */
 406 struct dvb_pll_desc dvb_pll_philips_sd1878_tda8261 = {
 407         .name  = "Philips SD1878",
 408         .min   =  950000,
 409         .max   = 2150000,
 410         .iffreq= 249, /* zero-IF, offset 249 is to round up */
 411         .count = 4,
 412         .entries = {
 413                 { 1250000, 500, 0xc4, 0x00},
 414                 { 1550000, 500, 0xc4, 0x40},
 415                 { 2050000, 500, 0xc4, 0x80},
 416                 { 2150000, 500, 0xc4, 0xc0},
 417         },
 418 };
 419 EXPORT_SYMBOL(dvb_pll_philips_sd1878_tda8261);
 420
 421 /*
 422  * Philips TD1316 Tuner.
 423  */
 424 static void td1316_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 425 {
 426         u8 band;
 427
 428         /* determine band */
 429         if (params->frequency < 161000000)
 430                 band = 1;
 431         else if (params->frequency < 444000000)
 432                 band = 2;
 433         else
 434                 band = 4;
 435
 436         buf[3] |= band;
 437
 438         /* setup PLL filter */
 439         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 440                 buf[3] |= 1 << 3;
 441 }
 442
 443 struct dvb_pll_desc dvb_pll_philips_td1316 = {
 444         .name  = "Philips TD1316",
 445         .min   =  87000000,
 446         .max   = 895000000,
 447         .iffreq= 36166667,
 448         .set   = td1316_bw,
 449         .count = 9,
 450         .entries = {
 451                 {  93834000, 166667, 0xca, 0x60},
 452                 { 123834000, 166667, 0xca, 0xa0},
 453                 { 163834000, 166667, 0xca, 0xc0},
 454                 { 253834000, 166667, 0xca, 0x60},
 455                 { 383834000, 166667, 0xca, 0xa0},
 456                 { 443834000, 166667, 0xca, 0xc0},
 457                 { 583834000, 166667, 0xca, 0x60},
 458                 { 793834000, 166667, 0xca, 0xa0},
 459                 { 858834000, 166667, 0xca, 0xe0},
 460         },
 461 };
 462 EXPORT_SYMBOL(dvb_pll_philips_td1316);
 463
 464 /* FE6600 used on DViCO Hybrid */
 465 struct dvb_pll_desc dvb_pll_thomson_fe6600 = {
 466         .name = "Thomson FE6600",
 467         .min =  44250000,
 468         .max = 858000000,
 469         .iffreq= 36125000,
 470         .count = 4,
 471         .entries = {
 472                 { 250000000, 166667, 0xb4, 0x12 },
 473                 { 455000000, 166667, 0xfe, 0x11 },
 474                 { 775500000, 166667, 0xbc, 0x18 },
 475                 { 999999999, 166667, 0xf4, 0x18 },
 476         }
 477 };
 478 EXPORT_SYMBOL(dvb_pll_thomson_fe6600);
 479 static void opera1_bw(u8 *buf, const struct dvb_frontend_parameters *params)
 480 {
 481         if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ)
 482                 buf[2] |= 0x08;
 483 }
 484
 485 struct dvb_pll_desc dvb_pll_opera1 = {
 486         .name  = "Opera Tuner",
 487         .min   =  900000,
 488         .max   = 2250000,
 489         .iffreq= 0,
 490         .set   = opera1_bw,
 491         .count = 8,
 492         .entries = {
 493                 { 1064000, 500, 0xe5, 0xc6 },
 494                 { 1169000, 500, 0xe5, 0xe6 },
 495                 { 1299000, 500, 0xe5, 0x24 },
 496                 { 1444000, 500, 0xe5, 0x44 },
 497                 { 1606000, 500, 0xe5, 0x64 },
 498                 { 1777000, 500, 0xe5, 0x84 },
 499                 { 1941000, 500, 0xe5, 0xa4 },
 500                 { 2250000, 500, 0xe5, 0xc4 },
 501         }
 502 };
 503 EXPORT_SYMBOL(dvb_pll_opera1);
 504
 505 struct dvb_pll_priv {
 506         /* i2c details */
 507         int pll_i2c_address;
 508         struct i2c_adapter *i2c;
 509
 510         /* the PLL descriptor */
 511         struct dvb_pll_desc *pll_desc;
 512
 513         /* cached frequency/bandwidth */
 514         u32 frequency;
 515         u32 bandwidth;
 516 };
 517
 518 /* ----------------------------------------------------------- */
 519 /* code                                                        */
 520
 521 static int debug = 0;
 522 module_param(debug, int, 0644);
 523 MODULE_PARM_DESC(debug, "enable verbose debug messages");
 524
 525 static int dvb_pll_configure(struct dvb_pll_desc *desc, u8 *buf,
 526                              const struct dvb_frontend_parameters *params)
 527 {
 528         u32 div;
 529         int i;
 530
 531         if (params->frequency != 0 && (params->frequency < desc->min ||
 532                                        params->frequency > desc->max))
 533                 return -EINVAL;
 534
 535         for (i = 0; i < desc->count; i++) {
 536                 if (params->frequency > desc->entries[i].limit)
 537                         continue;
 538                 break;
 539         }
 540
 541         if (debug)
 542                 printk("pll: %s: freq=%d | i=%d/%d\n", desc->name,
 543                        params->frequency, i, desc->count);
 544         if (i == desc->count)
 545                 return -EINVAL;
 546
 547         div = (params->frequency + desc->iffreq +
 548                desc->entries[i].stepsize/2) / desc->entries[i].stepsize;
 549         buf[0] = div >> 8;
 550         buf[1] = div & 0xff;
 551         buf[2] = desc->entries[i].config;
 552         buf[3] = desc->entries[i].cb;
 553
 554         if (desc->set)
 555                 desc->set(buf, params);
 556
 557         if (debug)
 558                 printk("pll: %s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",
 559                        desc->name, div, buf[0], buf[1], buf[2], buf[3]);
 560
 561         // calculate the frequency we set it to
 562         return (div * desc->entries[i].stepsize) - desc->iffreq;
 563 }
 564 EXPORT_SYMBOL(dvb_pll_configure);
 565
 566 static int dvb_pll_release(struct dvb_frontend *fe)
 567 {
 568         kfree(fe->tuner_priv);
 569         fe->tuner_priv = NULL;
 570         return 0;
 571 }
 572
 573 static int dvb_pll_sleep(struct dvb_frontend *fe)
 574 {
 575         struct dvb_pll_priv *priv = fe->tuner_priv;
 576
 577         if (priv->i2c == NULL)
 578                 return -EINVAL;
 579
 580         if (priv->pll_desc->sleepdata) {
 581                 struct i2c_msg msg = { .flags = 0,
 582                         .addr = priv->pll_i2c_address,
 583                         .buf = priv->pll_desc->sleepdata + 1,
 584                         .len = priv->pll_desc->sleepdata[0] };
 585
 586                 int result;
 587
 588                 if (fe->ops.i2c_gate_ctrl)
 589                         fe->ops.i2c_gate_ctrl(fe, 1);
 590                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 591                         return result;
 592                 }
 593                 return 0;
 594         }
 595         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 596         return -EINVAL;
 597 }
 598
 599 static int dvb_pll_set_params(struct dvb_frontend *fe,
 600                               struct dvb_frontend_parameters *params)
 601 {
 602         struct dvb_pll_priv *priv = fe->tuner_priv;
 603         u8 buf[4];
 604         struct i2c_msg msg =
 605                 { .addr = priv->pll_i2c_address, .flags = 0,
 606                   .buf = buf, .len = sizeof(buf) };
 607         int result;
 608         u32 frequency = 0;
 609
 610         if (priv->i2c == NULL)
 611                 return -EINVAL;
 612
 613         if ((result = dvb_pll_configure(priv->pll_desc, buf, params)) < 0)
 614                 return result;
 615         else
 616                 frequency = result;
 617
 618         if (fe->ops.i2c_gate_ctrl)
 619                 fe->ops.i2c_gate_ctrl(fe, 1);
 620         if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 621                 return result;
 622         }
 623
 624         priv->frequency = frequency;
 625         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 626
 627         return 0;
 628 }
 629
 630 static int dvb_pll_calc_regs(struct dvb_frontend *fe,
 631                              struct dvb_frontend_parameters *params,
 632                              u8 *buf, int buf_len)
 633 {
 634         struct dvb_pll_priv *priv = fe->tuner_priv;
 635         int result;
 636         u32 frequency = 0;
 637
 638         if (buf_len < 5)
 639                 return -EINVAL;
 640
 641         if ((result = dvb_pll_configure(priv->pll_desc, buf+1, params)) < 0)
 642                 return result;
 643         else
 644                 frequency = result;
 645
 646         buf[0] = priv->pll_i2c_address;
 647
 648         priv->frequency = frequency;
 649         priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
 650
 651         return 5;
 652 }
 653
 654 static int dvb_pll_get_frequency(struct dvb_frontend *fe, u32 *frequency)
 655 {
 656         struct dvb_pll_priv *priv = fe->tuner_priv;
 657         *frequency = priv->frequency;
 658         return 0;
 659 }
 660
 661 static int dvb_pll_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
 662 {
 663         struct dvb_pll_priv *priv = fe->tuner_priv;
 664         *bandwidth = priv->bandwidth;
 665         return 0;
 666 }
 667
 668 static int dvb_pll_init(struct dvb_frontend *fe)
 669 {
 670         struct dvb_pll_priv *priv = fe->tuner_priv;
 671
 672         if (priv->i2c == NULL)
 673                 return -EINVAL;
 674
 675         if (priv->pll_desc->initdata) {
 676                 struct i2c_msg msg = { .flags = 0,
 677                         .addr = priv->pll_i2c_address,
 678                         .buf = priv->pll_desc->initdata + 1,
 679                         .len = priv->pll_desc->initdata[0] };
 680
 681                 int result;
 682                 if (fe->ops.i2c_gate_ctrl)
 683                         fe->ops.i2c_gate_ctrl(fe, 1);
 684                 if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) {
 685                         return result;
 686                 }
 687                 return 0;
 688         }
 689         /* Shouldn't be called when initdata is NULL, maybe BUG()? */
 690         return -EINVAL;
 691 }
 692
 693 static struct dvb_tuner_ops dvb_pll_tuner_ops = {
 694         .release = dvb_pll_release,
 695         .sleep = dvb_pll_sleep,
 696         .init = dvb_pll_init,
 697         .set_params = dvb_pll_set_params,
 698         .calc_regs = dvb_pll_calc_regs,
 699         .get_frequency = dvb_pll_get_frequency,
 700         .get_bandwidth = dvb_pll_get_bandwidth,
 701 };
 702
 703 struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 704                                     struct i2c_adapter *i2c,
 705                                     struct dvb_pll_desc *desc)
 706 {
 707         u8 b1 [] = { 0 };
 708         struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
 709                                .buf = b1, .len = 1 };
 710         struct dvb_pll_priv *priv = NULL;
 711         int ret;
 712
 713         if (i2c != NULL) {
 714                 if (fe->ops.i2c_gate_ctrl)
 715                         fe->ops.i2c_gate_ctrl(fe, 1);
 716
 717                 ret = i2c_transfer (i2c, &msg, 1);
 718                 if (ret != 1)
 719                         return NULL;
 720                 if (fe->ops.i2c_gate_ctrl)
 721                              fe->ops.i2c_gate_ctrl(fe, 0);
 722         }
 723
 724         priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
 725         if (priv == NULL)
 726                 return NULL;
 727
 728         priv->pll_i2c_address = pll_addr;
 729         priv->i2c = i2c;
 730         priv->pll_desc = desc;
 731
 732         memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops,
 733                sizeof(struct dvb_tuner_ops));
 734
 735         strncpy(fe->ops.tuner_ops.info.name, desc->name,
 736                 sizeof(fe->ops.tuner_ops.info.name));
 737         fe->ops.tuner_ops.info.frequency_min = desc->min;
 738         fe->ops.tuner_ops.info.frequency_min = desc->max;
 739         if (!desc->initdata)
 740                 fe->ops.tuner_ops.init = NULL;
 741         if (!desc->sleepdata)
 742                 fe->ops.tuner_ops.sleep = NULL;
 743
 744         fe->tuner_priv = priv;
 745         return fe;
 746 }
 747 EXPORT_SYMBOL(dvb_pll_attach);
 748
 749 MODULE_DESCRIPTION("dvb pll library");
 750 MODULE_AUTHOR("Gerd Knorr");
 751 MODULE_LICENSE("GPL");