1 /* 2 * i2c tv tuner chip device driver 3 * controls all those simple 4-control-bytes style tuners. 4 * 5 * This "tuner-simple" module was split apart from the original "tuner" module. 6 */ 7 #include <linux/delay.h> 8 #include <linux/i2c.h> 9 #include <linux/videodev2.h> 10 #include <media/tuner.h> 11 #include <media/v4l2-common.h> 12 #include <media/tuner-types.h> 13 #include "tuner-i2c.h" 14 #include "tuner-simple.h" 15 16 static int debug; 17 module_param(debug, int, 0644); 18 MODULE_PARM_DESC(debug, "enable verbose debug messages"); 19 20 #define TUNER_SIMPLE_MAX 64 21 static unsigned int simple_devcount; 22 23 static int offset; 24 module_param(offset, int, 0664); 25 MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner"); 26 27 static unsigned int atv_input[TUNER_SIMPLE_MAX] = \ 28 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; 29 static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \ 30 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; 31 module_param_array(atv_input, int, NULL, 0644); 32 module_param_array(dtv_input, int, NULL, 0644); 33 MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect"); 34 MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect"); 35 36 /* ---------------------------------------------------------------------- */ 37 38 /* tv standard selection for Temic 4046 FM5 39 this value takes the low bits of control byte 2 40 from datasheet Rev.01, Feb.00 41 standard BG I L L2 D 42 picture IF 38.9 38.9 38.9 33.95 38.9 43 sound 1 33.4 32.9 32.4 40.45 32.4 44 sound 2 33.16 45 NICAM 33.05 32.348 33.05 33.05 46 */ 47 #define TEMIC_SET_PAL_I 0x05 48 #define TEMIC_SET_PAL_DK 0x09 49 #define TEMIC_SET_PAL_L 0x0a /* SECAM ? */ 50 #define TEMIC_SET_PAL_L2 0x0b /* change IF ! */ 51 #define TEMIC_SET_PAL_BG 0x0c 52 53 /* tv tuner system standard selection for Philips FQ1216ME 54 this value takes the low bits of control byte 2 55 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23") 56 standard BG DK I L L` 57 picture carrier 38.90 38.90 38.90 38.90 33.95 58 colour 34.47 34.47 34.47 34.47 38.38 59 sound 1 33.40 32.40 32.90 32.40 40.45 60 sound 2 33.16 - - - - 61 NICAM 33.05 33.05 32.35 33.05 39.80 62 */ 63 #define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/ 64 #define PHILIPS_SET_PAL_BGDK 0x09 65 #define PHILIPS_SET_PAL_L2 0x0a 66 #define PHILIPS_SET_PAL_L 0x0b 67 68 /* system switching for Philips FI1216MF MK2 69 from datasheet "1996 Jul 09", 70 standard BG L L' 71 picture carrier 38.90 38.90 33.95 72 colour 34.47 34.37 38.38 73 sound 1 33.40 32.40 40.45 74 sound 2 33.16 - - 75 NICAM 33.05 33.05 39.80 76 */ 77 #define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */ 78 #define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */ 79 #define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */ 80 81 /* Control byte */ 82 83 #define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */ 84 #define TUNER_RATIO_SELECT_50 0x00 85 #define TUNER_RATIO_SELECT_32 0x02 86 #define TUNER_RATIO_SELECT_166 0x04 87 #define TUNER_RATIO_SELECT_62 0x06 88 89 #define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */ 90 91 /* Status byte */ 92 93 #define TUNER_POR 0x80 94 #define TUNER_FL 0x40 95 #define TUNER_MODE 0x38 96 #define TUNER_AFC 0x07 97 #define TUNER_SIGNAL 0x07 98 #define TUNER_STEREO 0x10 99 100 #define TUNER_PLL_LOCKED 0x40 101 #define TUNER_STEREO_MK3 0x04 102 103 static DEFINE_MUTEX(tuner_simple_list_mutex); 104 static LIST_HEAD(hybrid_tuner_instance_list); 105 106 struct tuner_simple_priv { 107 unsigned int nr; 108 u16 last_div; 109 110 struct tuner_i2c_props i2c_props; 111 struct list_head hybrid_tuner_instance_list; 112 113 unsigned int type; 114 struct tunertype *tun; 115 116 u32 frequency; 117 u32 bandwidth; 118 bool radio_mode; 119 }; 120 121 /* ---------------------------------------------------------------------- */ 122 123 static int tuner_read_status(struct dvb_frontend *fe) 124 { 125 struct tuner_simple_priv *priv = fe->tuner_priv; 126 unsigned char byte; 127 128 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1)) 129 return 0; 130 131 return byte; 132 } 133 134 static inline int tuner_signal(const int status) 135 { 136 return (status & TUNER_SIGNAL) << 13; 137 } 138 139 static inline int tuner_stereo(const int type, const int status) 140 { 141 switch (type) { 142 case TUNER_PHILIPS_FM1216ME_MK3: 143 case TUNER_PHILIPS_FM1236_MK3: 144 case TUNER_PHILIPS_FM1256_IH3: 145 case TUNER_LG_NTSC_TAPE: 146 case TUNER_TCL_MF02GIP_5N: 147 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3); 148 case TUNER_PHILIPS_FM1216MK5: 149 return status | TUNER_STEREO; 150 default: 151 return status & TUNER_STEREO; 152 } 153 } 154 155 static inline int tuner_islocked(const int status) 156 { 157 return (status & TUNER_FL); 158 } 159 160 static inline int tuner_afcstatus(const int status) 161 { 162 return (status & TUNER_AFC) - 2; 163 } 164 165 166 static int simple_get_status(struct dvb_frontend *fe, u32 *status) 167 { 168 struct tuner_simple_priv *priv = fe->tuner_priv; 169 int tuner_status; 170 171 if (priv->i2c_props.adap == NULL) 172 return -EINVAL; 173 174 tuner_status = tuner_read_status(fe); 175 176 *status = 0; 177 178 if (tuner_islocked(tuner_status)) 179 *status = TUNER_STATUS_LOCKED; 180 if (tuner_stereo(priv->type, tuner_status)) 181 *status |= TUNER_STATUS_STEREO; 182 183 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status)); 184 185 return 0; 186 } 187 188 static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength) 189 { 190 struct tuner_simple_priv *priv = fe->tuner_priv; 191 int signal; 192 193 if (priv->i2c_props.adap == NULL || !priv->radio_mode) 194 return -EINVAL; 195 196 signal = tuner_signal(tuner_read_status(fe)); 197 198 *strength = signal; 199 200 tuner_dbg("Signal strength: %d\n", signal); 201 202 return 0; 203 } 204 205 /* ---------------------------------------------------------------------- */ 206 207 static inline char *tuner_param_name(enum param_type type) 208 { 209 char *name; 210 211 switch (type) { 212 case TUNER_PARAM_TYPE_RADIO: 213 name = "radio"; 214 break; 215 case TUNER_PARAM_TYPE_PAL: 216 name = "pal"; 217 break; 218 case TUNER_PARAM_TYPE_SECAM: 219 name = "secam"; 220 break; 221 case TUNER_PARAM_TYPE_NTSC: 222 name = "ntsc"; 223 break; 224 case TUNER_PARAM_TYPE_DIGITAL: 225 name = "digital"; 226 break; 227 default: 228 name = "unknown"; 229 break; 230 } 231 return name; 232 } 233 234 static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, 235 enum param_type desired_type) 236 { 237 struct tuner_simple_priv *priv = fe->tuner_priv; 238 struct tunertype *tun = priv->tun; 239 int i; 240 241 for (i = 0; i < tun->count; i++) 242 if (desired_type == tun->params[i].type) 243 break; 244 245 /* use default tuner params if desired_type not available */ 246 if (i == tun->count) { 247 tuner_dbg("desired params (%s) undefined for tuner %d\n", 248 tuner_param_name(desired_type), priv->type); 249 i = 0; 250 } 251 252 tuner_dbg("using tuner params #%d (%s)\n", i, 253 tuner_param_name(tun->params[i].type)); 254 255 return &tun->params[i]; 256 } 257 258 static int simple_config_lookup(struct dvb_frontend *fe, 259 struct tuner_params *t_params, 260 unsigned *frequency, u8 *config, u8 *cb) 261 { 262 struct tuner_simple_priv *priv = fe->tuner_priv; 263 int i; 264 265 for (i = 0; i < t_params->count; i++) { 266 if (*frequency > t_params->ranges[i].limit) 267 continue; 268 break; 269 } 270 if (i == t_params->count) { 271 tuner_dbg("frequency out of range (%d > %d)\n", 272 *frequency, t_params->ranges[i - 1].limit); 273 *frequency = t_params->ranges[--i].limit; 274 } 275 *config = t_params->ranges[i].config; 276 *cb = t_params->ranges[i].cb; 277 278 tuner_dbg("freq = %d.%02d (%d), range = %d, config = 0x%02x, cb = 0x%02x\n", 279 *frequency / 16, *frequency % 16 * 100 / 16, *frequency, 280 i, *config, *cb); 281 282 return i; 283 } 284 285 /* ---------------------------------------------------------------------- */ 286 287 static void simple_set_rf_input(struct dvb_frontend *fe, 288 u8 *config, u8 *cb, unsigned int rf) 289 { 290 struct tuner_simple_priv *priv = fe->tuner_priv; 291 292 switch (priv->type) { 293 case TUNER_PHILIPS_TUV1236D: 294 switch (rf) { 295 case 1: 296 *cb |= 0x08; 297 break; 298 default: 299 *cb &= ~0x08; 300 break; 301 } 302 break; 303 case TUNER_PHILIPS_FCV1236D: 304 switch (rf) { 305 case 1: 306 *cb |= 0x01; 307 break; 308 default: 309 *cb &= ~0x01; 310 break; 311 } 312 break; 313 default: 314 break; 315 } 316 } 317 318 static int simple_std_setup(struct dvb_frontend *fe, 319 struct analog_parameters *params, 320 u8 *config, u8 *cb) 321 { 322 struct tuner_simple_priv *priv = fe->tuner_priv; 323 int rc; 324 325 /* tv norm specific stuff for multi-norm tuners */ 326 switch (priv->type) { 327 case TUNER_PHILIPS_SECAM: /* FI1216MF */ 328 /* 0x01 -> ??? no change ??? */ 329 /* 0x02 -> PAL BDGHI / SECAM L */ 330 /* 0x04 -> ??? PAL others / SECAM others ??? */ 331 *cb &= ~0x03; 332 if (params->std & V4L2_STD_SECAM_L) 333 /* also valid for V4L2_STD_SECAM */ 334 *cb |= PHILIPS_MF_SET_STD_L; 335 else if (params->std & V4L2_STD_SECAM_LC) 336 *cb |= PHILIPS_MF_SET_STD_LC; 337 else /* V4L2_STD_B|V4L2_STD_GH */ 338 *cb |= PHILIPS_MF_SET_STD_BG; 339 break; 340 341 case TUNER_TEMIC_4046FM5: 342 *cb &= ~0x0f; 343 344 if (params->std & V4L2_STD_PAL_BG) { 345 *cb |= TEMIC_SET_PAL_BG; 346 347 } else if (params->std & V4L2_STD_PAL_I) { 348 *cb |= TEMIC_SET_PAL_I; 349 350 } else if (params->std & V4L2_STD_PAL_DK) { 351 *cb |= TEMIC_SET_PAL_DK; 352 353 } else if (params->std & V4L2_STD_SECAM_L) { 354 *cb |= TEMIC_SET_PAL_L; 355 356 } 357 break; 358 359 case TUNER_PHILIPS_FQ1216ME: 360 *cb &= ~0x0f; 361 362 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) { 363 *cb |= PHILIPS_SET_PAL_BGDK; 364 365 } else if (params->std & V4L2_STD_PAL_I) { 366 *cb |= PHILIPS_SET_PAL_I; 367 368 } else if (params->std & V4L2_STD_SECAM_L) { 369 *cb |= PHILIPS_SET_PAL_L; 370 371 } 372 break; 373 374 case TUNER_PHILIPS_FCV1236D: 375 /* 0x00 -> ATSC antenna input 1 */ 376 /* 0x01 -> ATSC antenna input 2 */ 377 /* 0x02 -> NTSC antenna input 1 */ 378 /* 0x03 -> NTSC antenna input 2 */ 379 *cb &= ~0x03; 380 if (!(params->std & V4L2_STD_ATSC)) 381 *cb |= 2; 382 break; 383 384 case TUNER_MICROTUNE_4042FI5: 385 /* Set the charge pump for fast tuning */ 386 *config |= TUNER_CHARGE_PUMP; 387 break; 388 389 case TUNER_PHILIPS_TUV1236D: 390 { 391 struct tuner_i2c_props i2c = priv->i2c_props; 392 /* 0x40 -> ATSC antenna input 1 */ 393 /* 0x48 -> ATSC antenna input 2 */ 394 /* 0x00 -> NTSC antenna input 1 */ 395 /* 0x08 -> NTSC antenna input 2 */ 396 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00}; 397 *cb &= ~0x40; 398 if (params->std & V4L2_STD_ATSC) { 399 *cb |= 0x40; 400 buffer[1] = 0x04; 401 } 402 /* set to the correct mode (analog or digital) */ 403 i2c.addr = 0x0a; 404 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2); 405 if (2 != rc) 406 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", 407 rc); 408 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2); 409 if (2 != rc) 410 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", 411 rc); 412 break; 413 } 414 } 415 if (atv_input[priv->nr]) 416 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]); 417 418 return 0; 419 } 420 421 static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux) 422 { 423 struct tuner_simple_priv *priv = fe->tuner_priv; 424 int rc; 425 u8 buffer[2]; 426 427 buffer[0] = (config & ~0x38) | 0x18; 428 buffer[1] = aux; 429 430 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]); 431 432 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2); 433 if (2 != rc) 434 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc); 435 436 return rc == 2 ? 0 : rc; 437 } 438 439 static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer, 440 u16 div, u8 config, u8 cb) 441 { 442 struct tuner_simple_priv *priv = fe->tuner_priv; 443 int rc; 444 445 switch (priv->type) { 446 case TUNER_LG_TDVS_H06XF: 447 simple_set_aux_byte(fe, config, 0x20); 448 break; 449 case TUNER_PHILIPS_FQ1216LME_MK3: 450 simple_set_aux_byte(fe, config, 0x60); /* External AGC */ 451 break; 452 case TUNER_MICROTUNE_4042FI5: 453 { 454 /* FIXME - this may also work for other tuners */ 455 unsigned long timeout = jiffies + msecs_to_jiffies(1); 456 u8 status_byte = 0; 457 458 /* Wait until the PLL locks */ 459 for (;;) { 460 if (time_after(jiffies, timeout)) 461 return 0; 462 rc = tuner_i2c_xfer_recv(&priv->i2c_props, 463 &status_byte, 1); 464 if (1 != rc) { 465 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n", 466 rc); 467 break; 468 } 469 if (status_byte & TUNER_PLL_LOCKED) 470 break; 471 udelay(10); 472 } 473 474 /* Set the charge pump for optimized phase noise figure */ 475 config &= ~TUNER_CHARGE_PUMP; 476 buffer[0] = (div>>8) & 0x7f; 477 buffer[1] = div & 0xff; 478 buffer[2] = config; 479 buffer[3] = cb; 480 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", 481 buffer[0], buffer[1], buffer[2], buffer[3]); 482 483 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 484 if (4 != rc) 485 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", 486 rc); 487 break; 488 } 489 } 490 491 return 0; 492 } 493 494 static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer) 495 { 496 struct tuner_simple_priv *priv = fe->tuner_priv; 497 498 switch (priv->type) { 499 case TUNER_TENA_9533_DI: 500 case TUNER_YMEC_TVF_5533MF: 501 tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n"); 502 return 0; 503 case TUNER_PHILIPS_FM1216ME_MK3: 504 case TUNER_PHILIPS_FM1236_MK3: 505 case TUNER_PHILIPS_FMD1216ME_MK3: 506 case TUNER_PHILIPS_FMD1216MEX_MK3: 507 case TUNER_LG_NTSC_TAPE: 508 case TUNER_PHILIPS_FM1256_IH3: 509 case TUNER_TCL_MF02GIP_5N: 510 buffer[3] = 0x19; 511 break; 512 case TUNER_PHILIPS_FM1216MK5: 513 buffer[2] = 0x88; 514 buffer[3] = 0x09; 515 break; 516 case TUNER_TNF_5335MF: 517 buffer[3] = 0x11; 518 break; 519 case TUNER_LG_PAL_FM: 520 buffer[3] = 0xa5; 521 break; 522 case TUNER_THOMSON_DTT761X: 523 buffer[3] = 0x39; 524 break; 525 case TUNER_PHILIPS_FQ1216LME_MK3: 526 case TUNER_PHILIPS_FQ1236_MK5: 527 tuner_err("This tuner doesn't have FM\n"); 528 /* Set the low band for sanity, since it covers 88-108 MHz */ 529 buffer[3] = 0x01; 530 break; 531 case TUNER_MICROTUNE_4049FM5: 532 default: 533 buffer[3] = 0xa4; 534 break; 535 } 536 537 return 0; 538 } 539 540 /* ---------------------------------------------------------------------- */ 541 542 static int simple_set_tv_freq(struct dvb_frontend *fe, 543 struct analog_parameters *params) 544 { 545 struct tuner_simple_priv *priv = fe->tuner_priv; 546 u8 config, cb; 547 u16 div; 548 u8 buffer[4]; 549 int rc, IFPCoff, i; 550 enum param_type desired_type; 551 struct tuner_params *t_params; 552 553 /* IFPCoff = Video Intermediate Frequency - Vif: 554 940 =16*58.75 NTSC/J (Japan) 555 732 =16*45.75 M/N STD 556 704 =16*44 ATSC (at DVB code) 557 632 =16*39.50 I U.K. 558 622.4=16*38.90 B/G D/K I, L STD 559 592 =16*37.00 D China 560 590 =16.36.875 B Australia 561 543.2=16*33.95 L' STD 562 171.2=16*10.70 FM Radio (at set_radio_freq) 563 */ 564 565 if (params->std == V4L2_STD_NTSC_M_JP) { 566 IFPCoff = 940; 567 desired_type = TUNER_PARAM_TYPE_NTSC; 568 } else if ((params->std & V4L2_STD_MN) && 569 !(params->std & ~V4L2_STD_MN)) { 570 IFPCoff = 732; 571 desired_type = TUNER_PARAM_TYPE_NTSC; 572 } else if (params->std == V4L2_STD_SECAM_LC) { 573 IFPCoff = 543; 574 desired_type = TUNER_PARAM_TYPE_SECAM; 575 } else { 576 IFPCoff = 623; 577 desired_type = TUNER_PARAM_TYPE_PAL; 578 } 579 580 t_params = simple_tuner_params(fe, desired_type); 581 582 i = simple_config_lookup(fe, t_params, ¶ms->frequency, 583 &config, &cb); 584 585 div = params->frequency + IFPCoff + offset; 586 587 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n", 588 params->frequency / 16, params->frequency % 16 * 100 / 16, 589 IFPCoff / 16, IFPCoff % 16 * 100 / 16, 590 offset / 16, offset % 16 * 100 / 16, div); 591 592 /* tv norm specific stuff for multi-norm tuners */ 593 simple_std_setup(fe, params, &config, &cb); 594 595 if (t_params->cb_first_if_lower_freq && div < priv->last_div) { 596 buffer[0] = config; 597 buffer[1] = cb; 598 buffer[2] = (div>>8) & 0x7f; 599 buffer[3] = div & 0xff; 600 } else { 601 buffer[0] = (div>>8) & 0x7f; 602 buffer[1] = div & 0xff; 603 buffer[2] = config; 604 buffer[3] = cb; 605 } 606 priv->last_div = div; 607 if (t_params->has_tda9887) { 608 struct v4l2_priv_tun_config tda9887_cfg; 609 int tda_config = 0; 610 int is_secam_l = (params->std & (V4L2_STD_SECAM_L | 611 V4L2_STD_SECAM_LC)) && 612 !(params->std & ~(V4L2_STD_SECAM_L | 613 V4L2_STD_SECAM_LC)); 614 615 tda9887_cfg.tuner = TUNER_TDA9887; 616 tda9887_cfg.priv = &tda_config; 617 618 if (params->std == V4L2_STD_SECAM_LC) { 619 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc) 620 tda_config |= TDA9887_PORT1_ACTIVE; 621 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc) 622 tda_config |= TDA9887_PORT2_ACTIVE; 623 } else { 624 if (t_params->port1_active) 625 tda_config |= TDA9887_PORT1_ACTIVE; 626 if (t_params->port2_active) 627 tda_config |= TDA9887_PORT2_ACTIVE; 628 } 629 if (t_params->intercarrier_mode) 630 tda_config |= TDA9887_INTERCARRIER; 631 if (is_secam_l) { 632 if (i == 0 && t_params->default_top_secam_low) 633 tda_config |= TDA9887_TOP(t_params->default_top_secam_low); 634 else if (i == 1 && t_params->default_top_secam_mid) 635 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid); 636 else if (t_params->default_top_secam_high) 637 tda_config |= TDA9887_TOP(t_params->default_top_secam_high); 638 } else { 639 if (i == 0 && t_params->default_top_low) 640 tda_config |= TDA9887_TOP(t_params->default_top_low); 641 else if (i == 1 && t_params->default_top_mid) 642 tda_config |= TDA9887_TOP(t_params->default_top_mid); 643 else if (t_params->default_top_high) 644 tda_config |= TDA9887_TOP(t_params->default_top_high); 645 } 646 if (t_params->default_pll_gating_18) 647 tda_config |= TDA9887_GATING_18; 648 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG, 649 &tda9887_cfg); 650 } 651 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", 652 buffer[0], buffer[1], buffer[2], buffer[3]); 653 654 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 655 if (4 != rc) 656 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 657 658 simple_post_tune(fe, &buffer[0], div, config, cb); 659 660 return 0; 661 } 662 663 static int simple_set_radio_freq(struct dvb_frontend *fe, 664 struct analog_parameters *params) 665 { 666 struct tunertype *tun; 667 struct tuner_simple_priv *priv = fe->tuner_priv; 668 u8 buffer[4]; 669 u16 div; 670 int rc, j; 671 struct tuner_params *t_params; 672 unsigned int freq = params->frequency; 673 bool mono = params->audmode == V4L2_TUNER_MODE_MONO; 674 675 tun = priv->tun; 676 677 for (j = tun->count-1; j > 0; j--) 678 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO) 679 break; 680 /* default t_params (j=0) will be used if desired type wasn't found */ 681 t_params = &tun->params[j]; 682 683 /* Select Radio 1st IF used */ 684 switch (t_params->radio_if) { 685 case 0: /* 10.7 MHz */ 686 freq += (unsigned int)(10.7*16000); 687 break; 688 case 1: /* 33.3 MHz */ 689 freq += (unsigned int)(33.3*16000); 690 break; 691 case 2: /* 41.3 MHz */ 692 freq += (unsigned int)(41.3*16000); 693 break; 694 default: 695 tuner_warn("Unsupported radio_if value %d\n", 696 t_params->radio_if); 697 return 0; 698 } 699 700 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) | 701 TUNER_RATIO_SELECT_50; /* 50 kHz step */ 702 703 /* Bandswitch byte */ 704 simple_radio_bandswitch(fe, &buffer[0]); 705 706 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps 707 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) = 708 freq * (1/800) */ 709 div = (freq + 400) / 800; 710 711 if (t_params->cb_first_if_lower_freq && div < priv->last_div) { 712 buffer[0] = buffer[2]; 713 buffer[1] = buffer[3]; 714 buffer[2] = (div>>8) & 0x7f; 715 buffer[3] = div & 0xff; 716 } else { 717 buffer[0] = (div>>8) & 0x7f; 718 buffer[1] = div & 0xff; 719 } 720 721 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n", 722 buffer[0], buffer[1], buffer[2], buffer[3]); 723 priv->last_div = div; 724 725 if (t_params->has_tda9887) { 726 int config = 0; 727 struct v4l2_priv_tun_config tda9887_cfg; 728 729 tda9887_cfg.tuner = TUNER_TDA9887; 730 tda9887_cfg.priv = &config; 731 732 if (t_params->port1_active && 733 !t_params->port1_fm_high_sensitivity) 734 config |= TDA9887_PORT1_ACTIVE; 735 if (t_params->port2_active && 736 !t_params->port2_fm_high_sensitivity) 737 config |= TDA9887_PORT2_ACTIVE; 738 if (t_params->intercarrier_mode) 739 config |= TDA9887_INTERCARRIER; 740 if (t_params->port1_set_for_fm_mono && mono) 741 config &= ~TDA9887_PORT1_ACTIVE; 742 if (t_params->fm_gain_normal) 743 config |= TDA9887_GAIN_NORMAL; 744 if (t_params->radio_if == 2) 745 config |= TDA9887_RIF_41_3; 746 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG, 747 &tda9887_cfg); 748 } 749 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 750 if (4 != rc) 751 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 752 753 /* Write AUX byte */ 754 switch (priv->type) { 755 case TUNER_PHILIPS_FM1216ME_MK3: 756 buffer[2] = 0x98; 757 buffer[3] = 0x20; /* set TOP AGC */ 758 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 759 if (4 != rc) 760 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 761 break; 762 } 763 764 return 0; 765 } 766 767 static int simple_set_params(struct dvb_frontend *fe, 768 struct analog_parameters *params) 769 { 770 struct tuner_simple_priv *priv = fe->tuner_priv; 771 int ret = -EINVAL; 772 773 if (priv->i2c_props.adap == NULL) 774 return -EINVAL; 775 776 switch (params->mode) { 777 case V4L2_TUNER_RADIO: 778 priv->radio_mode = true; 779 ret = simple_set_radio_freq(fe, params); 780 priv->frequency = params->frequency * 125 / 2; 781 break; 782 case V4L2_TUNER_ANALOG_TV: 783 case V4L2_TUNER_DIGITAL_TV: 784 priv->radio_mode = false; 785 ret = simple_set_tv_freq(fe, params); 786 priv->frequency = params->frequency * 62500; 787 break; 788 } 789 priv->bandwidth = 0; 790 791 return ret; 792 } 793 794 static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf, 795 const u32 delsys, 796 const u32 frequency, 797 const u32 bandwidth) 798 { 799 struct tuner_simple_priv *priv = fe->tuner_priv; 800 801 switch (priv->type) { 802 case TUNER_PHILIPS_FMD1216ME_MK3: 803 case TUNER_PHILIPS_FMD1216MEX_MK3: 804 if (bandwidth == 8000000 && 805 frequency >= 158870000) 806 buf[3] |= 0x08; 807 break; 808 case TUNER_PHILIPS_TD1316: 809 /* determine band */ 810 buf[3] |= (frequency < 161000000) ? 1 : 811 (frequency < 444000000) ? 2 : 4; 812 813 /* setup PLL filter */ 814 if (bandwidth == 8000000) 815 buf[3] |= 1 << 3; 816 break; 817 case TUNER_PHILIPS_TUV1236D: 818 case TUNER_PHILIPS_FCV1236D: 819 { 820 unsigned int new_rf; 821 822 if (dtv_input[priv->nr]) 823 new_rf = dtv_input[priv->nr]; 824 else 825 switch (delsys) { 826 case SYS_DVBC_ANNEX_B: 827 new_rf = 1; 828 break; 829 case SYS_ATSC: 830 default: 831 new_rf = 0; 832 break; 833 } 834 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf); 835 break; 836 } 837 default: 838 break; 839 } 840 } 841 842 static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf, 843 const u32 delsys, 844 const u32 freq, 845 const u32 bw) 846 { 847 /* This function returns the tuned frequency on success, 0 on error */ 848 struct tuner_simple_priv *priv = fe->tuner_priv; 849 struct tunertype *tun = priv->tun; 850 struct tuner_params *t_params; 851 u8 config, cb; 852 u32 div; 853 int ret; 854 u32 frequency = freq / 62500; 855 856 if (!tun->stepsize) { 857 /* tuner-core was loaded before the digital tuner was 858 * configured and somehow picked the wrong tuner type */ 859 tuner_err("attempt to treat tuner %d (%s) as digital tuner without stepsize defined.\n", 860 priv->type, priv->tun->name); 861 return 0; /* failure */ 862 } 863 864 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL); 865 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb); 866 if (ret < 0) 867 return 0; /* failure */ 868 869 div = ((frequency + t_params->iffreq) * 62500 + offset + 870 tun->stepsize/2) / tun->stepsize; 871 872 buf[0] = div >> 8; 873 buf[1] = div & 0xff; 874 buf[2] = config; 875 buf[3] = cb; 876 877 simple_set_dvb(fe, buf, delsys, freq, bw); 878 879 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n", 880 tun->name, div, buf[0], buf[1], buf[2], buf[3]); 881 882 /* calculate the frequency we set it to */ 883 return (div * tun->stepsize) - t_params->iffreq; 884 } 885 886 static int simple_dvb_calc_regs(struct dvb_frontend *fe, 887 u8 *buf, int buf_len) 888 { 889 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 890 u32 delsys = c->delivery_system; 891 u32 bw = c->bandwidth_hz; 892 struct tuner_simple_priv *priv = fe->tuner_priv; 893 u32 frequency; 894 895 if (buf_len < 5) 896 return -EINVAL; 897 898 frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw); 899 if (frequency == 0) 900 return -EINVAL; 901 902 buf[0] = priv->i2c_props.addr; 903 904 priv->frequency = frequency; 905 priv->bandwidth = c->bandwidth_hz; 906 907 return 5; 908 } 909 910 static int simple_dvb_set_params(struct dvb_frontend *fe) 911 { 912 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 913 u32 delsys = c->delivery_system; 914 u32 bw = c->bandwidth_hz; 915 u32 freq = c->frequency; 916 struct tuner_simple_priv *priv = fe->tuner_priv; 917 u32 frequency; 918 u32 prev_freq, prev_bw; 919 int ret; 920 u8 buf[5]; 921 922 if (priv->i2c_props.adap == NULL) 923 return -EINVAL; 924 925 prev_freq = priv->frequency; 926 prev_bw = priv->bandwidth; 927 928 frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw); 929 if (frequency == 0) 930 return -EINVAL; 931 932 buf[0] = priv->i2c_props.addr; 933 934 priv->frequency = frequency; 935 priv->bandwidth = bw; 936 937 /* put analog demod in standby when tuning digital */ 938 if (fe->ops.analog_ops.standby) 939 fe->ops.analog_ops.standby(fe); 940 941 if (fe->ops.i2c_gate_ctrl) 942 fe->ops.i2c_gate_ctrl(fe, 1); 943 944 /* buf[0] contains the i2c address, but * 945 * we already have it in i2c_props.addr */ 946 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4); 947 if (ret != 4) 948 goto fail; 949 950 return 0; 951 fail: 952 /* calc_regs sets frequency and bandwidth. if we failed, unset them */ 953 priv->frequency = prev_freq; 954 priv->bandwidth = prev_bw; 955 956 return ret; 957 } 958 959 static int simple_init(struct dvb_frontend *fe) 960 { 961 struct tuner_simple_priv *priv = fe->tuner_priv; 962 963 if (priv->i2c_props.adap == NULL) 964 return -EINVAL; 965 966 if (priv->tun->initdata) { 967 int ret; 968 969 if (fe->ops.i2c_gate_ctrl) 970 fe->ops.i2c_gate_ctrl(fe, 1); 971 972 ret = tuner_i2c_xfer_send(&priv->i2c_props, 973 priv->tun->initdata + 1, 974 priv->tun->initdata[0]); 975 if (ret != priv->tun->initdata[0]) 976 return ret; 977 } 978 979 return 0; 980 } 981 982 static int simple_sleep(struct dvb_frontend *fe) 983 { 984 struct tuner_simple_priv *priv = fe->tuner_priv; 985 986 if (priv->i2c_props.adap == NULL) 987 return -EINVAL; 988 989 if (priv->tun->sleepdata) { 990 int ret; 991 992 if (fe->ops.i2c_gate_ctrl) 993 fe->ops.i2c_gate_ctrl(fe, 1); 994 995 ret = tuner_i2c_xfer_send(&priv->i2c_props, 996 priv->tun->sleepdata + 1, 997 priv->tun->sleepdata[0]); 998 if (ret != priv->tun->sleepdata[0]) 999 return ret; 1000 } 1001 1002 return 0; 1003 } 1004 1005 static void simple_release(struct dvb_frontend *fe) 1006 { 1007 struct tuner_simple_priv *priv = fe->tuner_priv; 1008 1009 mutex_lock(&tuner_simple_list_mutex); 1010 1011 if (priv) 1012 hybrid_tuner_release_state(priv); 1013 1014 mutex_unlock(&tuner_simple_list_mutex); 1015 1016 fe->tuner_priv = NULL; 1017 } 1018 1019 static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency) 1020 { 1021 struct tuner_simple_priv *priv = fe->tuner_priv; 1022 *frequency = priv->frequency; 1023 return 0; 1024 } 1025 1026 static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) 1027 { 1028 struct tuner_simple_priv *priv = fe->tuner_priv; 1029 *bandwidth = priv->bandwidth; 1030 return 0; 1031 } 1032 1033 static const struct dvb_tuner_ops simple_tuner_ops = { 1034 .init = simple_init, 1035 .sleep = simple_sleep, 1036 .set_analog_params = simple_set_params, 1037 .set_params = simple_dvb_set_params, 1038 .calc_regs = simple_dvb_calc_regs, 1039 .release = simple_release, 1040 .get_frequency = simple_get_frequency, 1041 .get_bandwidth = simple_get_bandwidth, 1042 .get_status = simple_get_status, 1043 .get_rf_strength = simple_get_rf_strength, 1044 }; 1045 1046 struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, 1047 struct i2c_adapter *i2c_adap, 1048 u8 i2c_addr, 1049 unsigned int type) 1050 { 1051 struct tuner_simple_priv *priv = NULL; 1052 int instance; 1053 1054 if (type >= tuner_count) { 1055 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n", 1056 __func__, type, tuner_count-1); 1057 return NULL; 1058 } 1059 1060 /* If i2c_adap is set, check that the tuner is at the correct address. 1061 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly 1062 * by the digital demod via calc_regs. 1063 */ 1064 if (i2c_adap != NULL) { 1065 u8 b[1]; 1066 struct i2c_msg msg = { 1067 .addr = i2c_addr, .flags = I2C_M_RD, 1068 .buf = b, .len = 1, 1069 }; 1070 1071 if (fe->ops.i2c_gate_ctrl) 1072 fe->ops.i2c_gate_ctrl(fe, 1); 1073 1074 if (1 != i2c_transfer(i2c_adap, &msg, 1)) 1075 printk(KERN_WARNING "tuner-simple %d-%04x: unable to probe %s, proceeding anyway.", 1076 i2c_adapter_id(i2c_adap), i2c_addr, 1077 tuners[type].name); 1078 1079 if (fe->ops.i2c_gate_ctrl) 1080 fe->ops.i2c_gate_ctrl(fe, 0); 1081 } 1082 1083 mutex_lock(&tuner_simple_list_mutex); 1084 1085 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv, 1086 hybrid_tuner_instance_list, 1087 i2c_adap, i2c_addr, 1088 "tuner-simple"); 1089 switch (instance) { 1090 case 0: 1091 mutex_unlock(&tuner_simple_list_mutex); 1092 return NULL; 1093 case 1: 1094 fe->tuner_priv = priv; 1095 1096 priv->type = type; 1097 priv->tun = &tuners[type]; 1098 priv->nr = simple_devcount++; 1099 break; 1100 default: 1101 fe->tuner_priv = priv; 1102 break; 1103 } 1104 1105 mutex_unlock(&tuner_simple_list_mutex); 1106 1107 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, 1108 sizeof(struct dvb_tuner_ops)); 1109 1110 if (type != priv->type) 1111 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n", 1112 type, priv->type, priv->tun->name); 1113 else 1114 tuner_info("type set to %d (%s)\n", 1115 priv->type, priv->tun->name); 1116 1117 if ((debug) || ((atv_input[priv->nr] > 0) || 1118 (dtv_input[priv->nr] > 0))) { 1119 if (0 == atv_input[priv->nr]) 1120 tuner_info("tuner %d atv rf input will be autoselected\n", 1121 priv->nr); 1122 else 1123 tuner_info("tuner %d atv rf input will be set to input %d (insmod option)\n", 1124 priv->nr, atv_input[priv->nr]); 1125 if (0 == dtv_input[priv->nr]) 1126 tuner_info("tuner %d dtv rf input will be autoselected\n", 1127 priv->nr); 1128 else 1129 tuner_info("tuner %d dtv rf input will be set to input %d (insmod option)\n", 1130 priv->nr, dtv_input[priv->nr]); 1131 } 1132 1133 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name, 1134 sizeof(fe->ops.tuner_ops.info.name)); 1135 1136 return fe; 1137 } 1138 EXPORT_SYMBOL_GPL(simple_tuner_attach); 1139 1140 MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver"); 1141 MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); 1142 MODULE_LICENSE("GPL"); 1143