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