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 16static int debug; 17module_param(debug, int, 0644); 18MODULE_PARM_DESC(debug, "enable verbose debug messages"); 19 20#define TUNER_SIMPLE_MAX 64 21static unsigned int simple_devcount; 22 23static int offset; 24module_param(offset, int, 0664); 25MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner"); 26 27static unsigned int atv_input[TUNER_SIMPLE_MAX] = \ 28 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; 29static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \ 30 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 }; 31module_param_array(atv_input, int, NULL, 0644); 32module_param_array(dtv_input, int, NULL, 0644); 33MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect"); 34MODULE_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 103static DEFINE_MUTEX(tuner_simple_list_mutex); 104static LIST_HEAD(hybrid_tuner_instance_list); 105 106struct 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}; 119 120/* ---------------------------------------------------------------------- */ 121 122static int tuner_read_status(struct dvb_frontend *fe) 123{ 124 struct tuner_simple_priv *priv = fe->tuner_priv; 125 unsigned char byte; 126 127 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1)) 128 return 0; 129 130 return byte; 131} 132 133static inline int tuner_signal(const int status) 134{ 135 return (status & TUNER_SIGNAL) << 13; 136} 137 138static inline int tuner_stereo(const int type, const int status) 139{ 140 switch (type) { 141 case TUNER_PHILIPS_FM1216ME_MK3: 142 case TUNER_PHILIPS_FM1236_MK3: 143 case TUNER_PHILIPS_FM1256_IH3: 144 case TUNER_LG_NTSC_TAPE: 145 case TUNER_TCL_MF02GIP_5N: 146 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3); 147 case TUNER_PHILIPS_FM1216MK5: 148 return status | TUNER_STEREO; 149 default: 150 return status & TUNER_STEREO; 151 } 152} 153 154static inline int tuner_islocked(const int status) 155{ 156 return (status & TUNER_FL); 157} 158 159static inline int tuner_afcstatus(const int status) 160{ 161 return (status & TUNER_AFC) - 2; 162} 163 164 165static int simple_get_status(struct dvb_frontend *fe, u32 *status) 166{ 167 struct tuner_simple_priv *priv = fe->tuner_priv; 168 int tuner_status; 169 170 if (priv->i2c_props.adap == NULL) 171 return -EINVAL; 172 173 tuner_status = tuner_read_status(fe); 174 175 *status = 0; 176 177 if (tuner_islocked(tuner_status)) 178 *status = TUNER_STATUS_LOCKED; 179 if (tuner_stereo(priv->type, tuner_status)) 180 *status |= TUNER_STATUS_STEREO; 181 182 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status)); 183 184 return 0; 185} 186 187static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength) 188{ 189 struct tuner_simple_priv *priv = fe->tuner_priv; 190 int signal; 191 192 if (priv->i2c_props.adap == NULL) 193 return -EINVAL; 194 195 signal = tuner_signal(tuner_read_status(fe)); 196 197 *strength = signal; 198 199 tuner_dbg("Signal strength: %d\n", signal); 200 201 return 0; 202} 203 204/* ---------------------------------------------------------------------- */ 205 206static inline char *tuner_param_name(enum param_type type) 207{ 208 char *name; 209 210 switch (type) { 211 case TUNER_PARAM_TYPE_RADIO: 212 name = "radio"; 213 break; 214 case TUNER_PARAM_TYPE_PAL: 215 name = "pal"; 216 break; 217 case TUNER_PARAM_TYPE_SECAM: 218 name = "secam"; 219 break; 220 case TUNER_PARAM_TYPE_NTSC: 221 name = "ntsc"; 222 break; 223 case TUNER_PARAM_TYPE_DIGITAL: 224 name = "digital"; 225 break; 226 default: 227 name = "unknown"; 228 break; 229 } 230 return name; 231} 232 233static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe, 234 enum param_type desired_type) 235{ 236 struct tuner_simple_priv *priv = fe->tuner_priv; 237 struct tunertype *tun = priv->tun; 238 int i; 239 240 for (i = 0; i < tun->count; i++) 241 if (desired_type == tun->params[i].type) 242 break; 243 244 /* use default tuner params if desired_type not available */ 245 if (i == tun->count) { 246 tuner_dbg("desired params (%s) undefined for tuner %d\n", 247 tuner_param_name(desired_type), priv->type); 248 i = 0; 249 } 250 251 tuner_dbg("using tuner params #%d (%s)\n", i, 252 tuner_param_name(tun->params[i].type)); 253 254 return &tun->params[i]; 255} 256 257static int simple_config_lookup(struct dvb_frontend *fe, 258 struct tuner_params *t_params, 259 unsigned *frequency, u8 *config, u8 *cb) 260{ 261 struct tuner_simple_priv *priv = fe->tuner_priv; 262 int i; 263 264 for (i = 0; i < t_params->count; i++) { 265 if (*frequency > t_params->ranges[i].limit) 266 continue; 267 break; 268 } 269 if (i == t_params->count) { 270 tuner_dbg("frequency out of range (%d > %d)\n", 271 *frequency, t_params->ranges[i - 1].limit); 272 *frequency = t_params->ranges[--i].limit; 273 } 274 *config = t_params->ranges[i].config; 275 *cb = t_params->ranges[i].cb; 276 277 tuner_dbg("freq = %d.%02d (%d), range = %d, " 278 "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 287static 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 318static 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 " 407 "(should be 2)\n", rc); 408 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2); 409 if (2 != rc) 410 tuner_warn("i2c i/o error: rc == %d " 411 "(should be 2)\n", 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 421static 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 439static 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 " 466 "(should be 1)\n", 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 " 486 "(should be 4)\n", rc); 487 break; 488 } 489 } 490 491 return 0; 492} 493 494static 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. " 502 "Most cards have a TEA5767 for FM\n"); 503 return 0; 504 case TUNER_PHILIPS_FM1216ME_MK3: 505 case TUNER_PHILIPS_FM1236_MK3: 506 case TUNER_PHILIPS_FMD1216ME_MK3: 507 case TUNER_PHILIPS_FMD1216MEX_MK3: 508 case TUNER_LG_NTSC_TAPE: 509 case TUNER_PHILIPS_FM1256_IH3: 510 case TUNER_TCL_MF02GIP_5N: 511 buffer[3] = 0x19; 512 break; 513 case TUNER_PHILIPS_FM1216MK5: 514 buffer[2] = 0x88; 515 buffer[3] = 0x09; 516 break; 517 case TUNER_TNF_5335MF: 518 buffer[3] = 0x11; 519 break; 520 case TUNER_LG_PAL_FM: 521 buffer[3] = 0xa5; 522 break; 523 case TUNER_THOMSON_DTT761X: 524 buffer[3] = 0x39; 525 break; 526 case TUNER_PHILIPS_FQ1216LME_MK3: 527 case TUNER_PHILIPS_FQ1236_MK5: 528 tuner_err("This tuner doesn't have FM\n"); 529 /* Set the low band for sanity, since it covers 88-108 MHz */ 530 buffer[3] = 0x01; 531 break; 532 case TUNER_MICROTUNE_4049FM5: 533 default: 534 buffer[3] = 0xa4; 535 break; 536 } 537 538 return 0; 539} 540 541/* ---------------------------------------------------------------------- */ 542 543static int simple_set_tv_freq(struct dvb_frontend *fe, 544 struct analog_parameters *params) 545{ 546 struct tuner_simple_priv *priv = fe->tuner_priv; 547 u8 config, cb; 548 u16 div; 549 u8 buffer[4]; 550 int rc, IFPCoff, i; 551 enum param_type desired_type; 552 struct tuner_params *t_params; 553 554 /* IFPCoff = Video Intermediate Frequency - Vif: 555 940 =16*58.75 NTSC/J (Japan) 556 732 =16*45.75 M/N STD 557 704 =16*44 ATSC (at DVB code) 558 632 =16*39.50 I U.K. 559 622.4=16*38.90 B/G D/K I, L STD 560 592 =16*37.00 D China 561 590 =16.36.875 B Australia 562 543.2=16*33.95 L' STD 563 171.2=16*10.70 FM Radio (at set_radio_freq) 564 */ 565 566 if (params->std == V4L2_STD_NTSC_M_JP) { 567 IFPCoff = 940; 568 desired_type = TUNER_PARAM_TYPE_NTSC; 569 } else if ((params->std & V4L2_STD_MN) && 570 !(params->std & ~V4L2_STD_MN)) { 571 IFPCoff = 732; 572 desired_type = TUNER_PARAM_TYPE_NTSC; 573 } else if (params->std == V4L2_STD_SECAM_LC) { 574 IFPCoff = 543; 575 desired_type = TUNER_PARAM_TYPE_SECAM; 576 } else { 577 IFPCoff = 623; 578 desired_type = TUNER_PARAM_TYPE_PAL; 579 } 580 581 t_params = simple_tuner_params(fe, desired_type); 582 583 i = simple_config_lookup(fe, t_params, ¶ms->frequency, 584 &config, &cb); 585 586 div = params->frequency + IFPCoff + offset; 587 588 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, " 589 "Offset=%d.%02d MHz, div=%0d\n", 590 params->frequency / 16, params->frequency % 16 * 100 / 16, 591 IFPCoff / 16, IFPCoff % 16 * 100 / 16, 592 offset / 16, offset % 16 * 100 / 16, div); 593 594 /* tv norm specific stuff for multi-norm tuners */ 595 simple_std_setup(fe, params, &config, &cb); 596 597 if (t_params->cb_first_if_lower_freq && div < priv->last_div) { 598 buffer[0] = config; 599 buffer[1] = cb; 600 buffer[2] = (div>>8) & 0x7f; 601 buffer[3] = div & 0xff; 602 } else { 603 buffer[0] = (div>>8) & 0x7f; 604 buffer[1] = div & 0xff; 605 buffer[2] = config; 606 buffer[3] = cb; 607 } 608 priv->last_div = div; 609 if (t_params->has_tda9887) { 610 struct v4l2_priv_tun_config tda9887_cfg; 611 int tda_config = 0; 612 int is_secam_l = (params->std & (V4L2_STD_SECAM_L | 613 V4L2_STD_SECAM_LC)) && 614 !(params->std & ~(V4L2_STD_SECAM_L | 615 V4L2_STD_SECAM_LC)); 616 617 tda9887_cfg.tuner = TUNER_TDA9887; 618 tda9887_cfg.priv = &tda_config; 619 620 if (params->std == V4L2_STD_SECAM_LC) { 621 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc) 622 tda_config |= TDA9887_PORT1_ACTIVE; 623 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc) 624 tda_config |= TDA9887_PORT2_ACTIVE; 625 } else { 626 if (t_params->port1_active) 627 tda_config |= TDA9887_PORT1_ACTIVE; 628 if (t_params->port2_active) 629 tda_config |= TDA9887_PORT2_ACTIVE; 630 } 631 if (t_params->intercarrier_mode) 632 tda_config |= TDA9887_INTERCARRIER; 633 if (is_secam_l) { 634 if (i == 0 && t_params->default_top_secam_low) 635 tda_config |= TDA9887_TOP(t_params->default_top_secam_low); 636 else if (i == 1 && t_params->default_top_secam_mid) 637 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid); 638 else if (t_params->default_top_secam_high) 639 tda_config |= TDA9887_TOP(t_params->default_top_secam_high); 640 } else { 641 if (i == 0 && t_params->default_top_low) 642 tda_config |= TDA9887_TOP(t_params->default_top_low); 643 else if (i == 1 && t_params->default_top_mid) 644 tda_config |= TDA9887_TOP(t_params->default_top_mid); 645 else if (t_params->default_top_high) 646 tda_config |= TDA9887_TOP(t_params->default_top_high); 647 } 648 if (t_params->default_pll_gating_18) 649 tda_config |= TDA9887_GATING_18; 650 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG, 651 &tda9887_cfg); 652 } 653 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", 654 buffer[0], buffer[1], buffer[2], buffer[3]); 655 656 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 657 if (4 != rc) 658 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 659 660 simple_post_tune(fe, &buffer[0], div, config, cb); 661 662 return 0; 663} 664 665static int simple_set_radio_freq(struct dvb_frontend *fe, 666 struct analog_parameters *params) 667{ 668 struct tunertype *tun; 669 struct tuner_simple_priv *priv = fe->tuner_priv; 670 u8 buffer[4]; 671 u16 div; 672 int rc, j; 673 struct tuner_params *t_params; 674 unsigned int freq = params->frequency; 675 676 tun = priv->tun; 677 678 for (j = tun->count-1; j > 0; j--) 679 if (tun->params[j].type == TUNER_PARAM_TYPE_RADIO) 680 break; 681 /* default t_params (j=0) will be used if desired type wasn't found */ 682 t_params = &tun->params[j]; 683 684 /* Select Radio 1st IF used */ 685 switch (t_params->radio_if) { 686 case 0: /* 10.7 MHz */ 687 freq += (unsigned int)(10.7*16000); 688 break; 689 case 1: /* 33.3 MHz */ 690 freq += (unsigned int)(33.3*16000); 691 break; 692 case 2: /* 41.3 MHz */ 693 freq += (unsigned int)(41.3*16000); 694 break; 695 default: 696 tuner_warn("Unsupported radio_if value %d\n", 697 t_params->radio_if); 698 return 0; 699 } 700 701 buffer[2] = (t_params->ranges[0].config & ~TUNER_RATIO_MASK) | 702 TUNER_RATIO_SELECT_50; /* 50 kHz step */ 703 704 /* Bandswitch byte */ 705 simple_radio_bandswitch(fe, &buffer[0]); 706 707 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps 708 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) = 709 freq * (1/800) */ 710 div = (freq + 400) / 800; 711 712 if (t_params->cb_first_if_lower_freq && div < priv->last_div) { 713 buffer[0] = buffer[2]; 714 buffer[1] = buffer[3]; 715 buffer[2] = (div>>8) & 0x7f; 716 buffer[3] = div & 0xff; 717 } else { 718 buffer[0] = (div>>8) & 0x7f; 719 buffer[1] = div & 0xff; 720 } 721 722 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n", 723 buffer[0], buffer[1], buffer[2], buffer[3]); 724 priv->last_div = div; 725 726 if (t_params->has_tda9887) { 727 int config = 0; 728 struct v4l2_priv_tun_config tda9887_cfg; 729 730 tda9887_cfg.tuner = TUNER_TDA9887; 731 tda9887_cfg.priv = &config; 732 733 if (t_params->port1_active && 734 !t_params->port1_fm_high_sensitivity) 735 config |= TDA9887_PORT1_ACTIVE; 736 if (t_params->port2_active && 737 !t_params->port2_fm_high_sensitivity) 738 config |= TDA9887_PORT2_ACTIVE; 739 if (t_params->intercarrier_mode) 740 config |= TDA9887_INTERCARRIER; 741/* if (t_params->port1_set_for_fm_mono) 742 config &= ~TDA9887_PORT1_ACTIVE;*/ 743 if (t_params->fm_gain_normal) 744 config |= TDA9887_GAIN_NORMAL; 745 if (t_params->radio_if == 2) 746 config |= TDA9887_RIF_41_3; 747 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG, 748 &tda9887_cfg); 749 } 750 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 751 if (4 != rc) 752 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 753 754 /* Write AUX byte */ 755 switch (priv->type) { 756 case TUNER_PHILIPS_FM1216ME_MK3: 757 buffer[2] = 0x98; 758 buffer[3] = 0x20; /* set TOP AGC */ 759 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 760 if (4 != rc) 761 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 762 break; 763 } 764 765 return 0; 766} 767 768static int simple_set_params(struct dvb_frontend *fe, 769 struct analog_parameters *params) 770{ 771 struct tuner_simple_priv *priv = fe->tuner_priv; 772 int ret = -EINVAL; 773 774 if (priv->i2c_props.adap == NULL) 775 return -EINVAL; 776 777 switch (params->mode) { 778 case V4L2_TUNER_RADIO: 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 ret = simple_set_tv_freq(fe, params); 785 priv->frequency = params->frequency * 62500; 786 break; 787 } 788 priv->bandwidth = 0; 789 790 return ret; 791} 792 793static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf, 794 const u32 delsys, 795 const u32 frequency, 796 const u32 bandwidth) 797{ 798 struct tuner_simple_priv *priv = fe->tuner_priv; 799 800 switch (priv->type) { 801 case TUNER_PHILIPS_FMD1216ME_MK3: 802 case TUNER_PHILIPS_FMD1216MEX_MK3: 803 if (bandwidth == 8000000 && 804 frequency >= 158870000) 805 buf[3] |= 0x08; 806 break; 807 case TUNER_PHILIPS_TD1316: 808 /* determine band */ 809 buf[3] |= (frequency < 161000000) ? 1 : 810 (frequency < 444000000) ? 2 : 4; 811 812 /* setup PLL filter */ 813 if (bandwidth == 8000000) 814 buf[3] |= 1 << 3; 815 break; 816 case TUNER_PHILIPS_TUV1236D: 817 case TUNER_PHILIPS_FCV1236D: 818 { 819 unsigned int new_rf; 820 821 if (dtv_input[priv->nr]) 822 new_rf = dtv_input[priv->nr]; 823 else 824 switch (delsys) { 825 case SYS_DVBC_ANNEX_B: 826 new_rf = 1; 827 break; 828 case SYS_ATSC: 829 default: 830 new_rf = 0; 831 break; 832 } 833 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf); 834 break; 835 } 836 default: 837 break; 838 } 839} 840 841static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf, 842 const u32 delsys, 843 const u32 freq, 844 const u32 bw) 845{ 846 /* This function returns the tuned frequency on success, 0 on error */ 847 struct tuner_simple_priv *priv = fe->tuner_priv; 848 struct tunertype *tun = priv->tun; 849 static struct tuner_params *t_params; 850 u8 config, cb; 851 u32 div; 852 int ret; 853 u32 frequency = freq / 62500; 854 855 if (!tun->stepsize) { 856 /* tuner-core was loaded before the digital tuner was 857 * configured and somehow picked the wrong tuner type */ 858 tuner_err("attempt to treat tuner %d (%s) as digital tuner " 859 "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 886static 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 910static 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; 951fail: 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 959static 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 982static 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 1005static int 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 return 0; 1019} 1020 1021static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency) 1022{ 1023 struct tuner_simple_priv *priv = fe->tuner_priv; 1024 *frequency = priv->frequency; 1025 return 0; 1026} 1027 1028static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) 1029{ 1030 struct tuner_simple_priv *priv = fe->tuner_priv; 1031 *bandwidth = priv->bandwidth; 1032 return 0; 1033} 1034 1035static struct dvb_tuner_ops simple_tuner_ops = { 1036 .init = simple_init, 1037 .sleep = simple_sleep, 1038 .set_analog_params = simple_set_params, 1039 .set_params = simple_dvb_set_params, 1040 .calc_regs = simple_dvb_calc_regs, 1041 .release = simple_release, 1042 .get_frequency = simple_get_frequency, 1043 .get_bandwidth = simple_get_bandwidth, 1044 .get_status = simple_get_status, 1045 .get_rf_strength = simple_get_rf_strength, 1046}; 1047 1048struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, 1049 struct i2c_adapter *i2c_adap, 1050 u8 i2c_addr, 1051 unsigned int type) 1052{ 1053 struct tuner_simple_priv *priv = NULL; 1054 int instance; 1055 1056 if (type >= tuner_count) { 1057 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n", 1058 __func__, type, tuner_count-1); 1059 return NULL; 1060 } 1061 1062 /* If i2c_adap is set, check that the tuner is at the correct address. 1063 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly 1064 * by the digital demod via calc_regs. 1065 */ 1066 if (i2c_adap != NULL) { 1067 u8 b[1]; 1068 struct i2c_msg msg = { 1069 .addr = i2c_addr, .flags = I2C_M_RD, 1070 .buf = b, .len = 1, 1071 }; 1072 1073 if (fe->ops.i2c_gate_ctrl) 1074 fe->ops.i2c_gate_ctrl(fe, 1); 1075 1076 if (1 != i2c_transfer(i2c_adap, &msg, 1)) 1077 printk(KERN_WARNING "tuner-simple %d-%04x: " 1078 "unable to probe %s, proceeding anyway.", 1079 i2c_adapter_id(i2c_adap), i2c_addr, 1080 tuners[type].name); 1081 1082 if (fe->ops.i2c_gate_ctrl) 1083 fe->ops.i2c_gate_ctrl(fe, 0); 1084 } 1085 1086 mutex_lock(&tuner_simple_list_mutex); 1087 1088 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv, 1089 hybrid_tuner_instance_list, 1090 i2c_adap, i2c_addr, 1091 "tuner-simple"); 1092 switch (instance) { 1093 case 0: 1094 mutex_unlock(&tuner_simple_list_mutex); 1095 return NULL; 1096 case 1: 1097 fe->tuner_priv = priv; 1098 1099 priv->type = type; 1100 priv->tun = &tuners[type]; 1101 priv->nr = simple_devcount++; 1102 break; 1103 default: 1104 fe->tuner_priv = priv; 1105 break; 1106 } 1107 1108 mutex_unlock(&tuner_simple_list_mutex); 1109 1110 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, 1111 sizeof(struct dvb_tuner_ops)); 1112 1113 if (type != priv->type) 1114 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n", 1115 type, priv->type, priv->tun->name); 1116 else 1117 tuner_info("type set to %d (%s)\n", 1118 priv->type, priv->tun->name); 1119 1120 if ((debug) || ((atv_input[priv->nr] > 0) || 1121 (dtv_input[priv->nr] > 0))) { 1122 if (0 == atv_input[priv->nr]) 1123 tuner_info("tuner %d atv rf input will be " 1124 "autoselected\n", priv->nr); 1125 else 1126 tuner_info("tuner %d atv rf input will be " 1127 "set to input %d (insmod option)\n", 1128 priv->nr, atv_input[priv->nr]); 1129 if (0 == dtv_input[priv->nr]) 1130 tuner_info("tuner %d dtv rf input will be " 1131 "autoselected\n", priv->nr); 1132 else 1133 tuner_info("tuner %d dtv rf input will be " 1134 "set to input %d (insmod option)\n", 1135 priv->nr, dtv_input[priv->nr]); 1136 } 1137 1138 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name, 1139 sizeof(fe->ops.tuner_ops.info.name)); 1140 1141 return fe; 1142} 1143EXPORT_SYMBOL_GPL(simple_tuner_attach); 1144 1145MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver"); 1146MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); 1147MODULE_LICENSE("GPL"); 1148 1149/* 1150 * Overrides for Emacs so that we follow Linus's tabbing style. 1151 * --------------------------------------------------------------------------- 1152 * Local variables: 1153 * c-basic-offset: 8 1154 * End: 1155 */ 1156