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 unsigned long timeout = jiffies + msecs_to_jiffies(1); 455 u8 status_byte = 0; 456 457 /* Wait until the PLL locks */ 458 for (;;) { 459 if (time_after(jiffies, timeout)) 460 return 0; 461 rc = tuner_i2c_xfer_recv(&priv->i2c_props, 462 &status_byte, 1); 463 if (1 != rc) { 464 tuner_warn("i2c i/o read error: rc == %d " 465 "(should be 1)\n", rc); 466 break; 467 } 468 if (status_byte & TUNER_PLL_LOCKED) 469 break; 470 udelay(10); 471 } 472 473 /* Set the charge pump for optimized phase noise figure */ 474 config &= ~TUNER_CHARGE_PUMP; 475 buffer[0] = (div>>8) & 0x7f; 476 buffer[1] = div & 0xff; 477 buffer[2] = config; 478 buffer[3] = cb; 479 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", 480 buffer[0], buffer[1], buffer[2], buffer[3]); 481 482 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 483 if (4 != rc) 484 tuner_warn("i2c i/o error: rc == %d " 485 "(should be 4)\n", rc); 486 break; 487 } 488 } 489 490 return 0; 491} 492 493static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer) 494{ 495 struct tuner_simple_priv *priv = fe->tuner_priv; 496 497 switch (priv->type) { 498 case TUNER_TENA_9533_DI: 499 case TUNER_YMEC_TVF_5533MF: 500 tuner_dbg("This tuner doesn't have FM. " 501 "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 542static 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, " 588 "Offset=%d.%02d MHz, div=%0d\n", 589 params->frequency / 16, params->frequency % 16 * 100 / 16, 590 IFPCoff / 16, IFPCoff % 16 * 100 / 16, 591 offset / 16, offset % 16 * 100 / 16, div); 592 593 /* tv norm specific stuff for multi-norm tuners */ 594 simple_std_setup(fe, params, &config, &cb); 595 596 if (t_params->cb_first_if_lower_freq && div < priv->last_div) { 597 buffer[0] = config; 598 buffer[1] = cb; 599 buffer[2] = (div>>8) & 0x7f; 600 buffer[3] = div & 0xff; 601 } else { 602 buffer[0] = (div>>8) & 0x7f; 603 buffer[1] = div & 0xff; 604 buffer[2] = config; 605 buffer[3] = cb; 606 } 607 priv->last_div = div; 608 if (t_params->has_tda9887) { 609 struct v4l2_priv_tun_config tda9887_cfg; 610 int tda_config = 0; 611 int is_secam_l = (params->std & (V4L2_STD_SECAM_L | 612 V4L2_STD_SECAM_LC)) && 613 !(params->std & ~(V4L2_STD_SECAM_L | 614 V4L2_STD_SECAM_LC)); 615 616 tda9887_cfg.tuner = TUNER_TDA9887; 617 tda9887_cfg.priv = &tda_config; 618 619 if (params->std == V4L2_STD_SECAM_LC) { 620 if (t_params->port1_active ^ t_params->port1_invert_for_secam_lc) 621 tda_config |= TDA9887_PORT1_ACTIVE; 622 if (t_params->port2_active ^ t_params->port2_invert_for_secam_lc) 623 tda_config |= TDA9887_PORT2_ACTIVE; 624 } else { 625 if (t_params->port1_active) 626 tda_config |= TDA9887_PORT1_ACTIVE; 627 if (t_params->port2_active) 628 tda_config |= TDA9887_PORT2_ACTIVE; 629 } 630 if (t_params->intercarrier_mode) 631 tda_config |= TDA9887_INTERCARRIER; 632 if (is_secam_l) { 633 if (i == 0 && t_params->default_top_secam_low) 634 tda_config |= TDA9887_TOP(t_params->default_top_secam_low); 635 else if (i == 1 && t_params->default_top_secam_mid) 636 tda_config |= TDA9887_TOP(t_params->default_top_secam_mid); 637 else if (t_params->default_top_secam_high) 638 tda_config |= TDA9887_TOP(t_params->default_top_secam_high); 639 } else { 640 if (i == 0 && t_params->default_top_low) 641 tda_config |= TDA9887_TOP(t_params->default_top_low); 642 else if (i == 1 && t_params->default_top_mid) 643 tda_config |= TDA9887_TOP(t_params->default_top_mid); 644 else if (t_params->default_top_high) 645 tda_config |= TDA9887_TOP(t_params->default_top_high); 646 } 647 if (t_params->default_pll_gating_18) 648 tda_config |= TDA9887_GATING_18; 649 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG, 650 &tda9887_cfg); 651 } 652 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n", 653 buffer[0], buffer[1], buffer[2], buffer[3]); 654 655 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4); 656 if (4 != rc) 657 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc); 658 659 simple_post_tune(fe, &buffer[0], div, config, cb); 660 661 return 0; 662} 663 664static int simple_set_radio_freq(struct dvb_frontend *fe, 665 struct analog_parameters *params) 666{ 667 struct tunertype *tun; 668 struct tuner_simple_priv *priv = fe->tuner_priv; 669 u8 buffer[4]; 670 u16 div; 671 int rc, j; 672 struct tuner_params *t_params; 673 unsigned int freq = params->frequency; 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) 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 return 0; 754} 755 756static int simple_set_params(struct dvb_frontend *fe, 757 struct analog_parameters *params) 758{ 759 struct tuner_simple_priv *priv = fe->tuner_priv; 760 int ret = -EINVAL; 761 762 if (priv->i2c_props.adap == NULL) 763 return -EINVAL; 764 765 switch (params->mode) { 766 case V4L2_TUNER_RADIO: 767 ret = simple_set_radio_freq(fe, params); 768 priv->frequency = params->frequency * 125 / 2; 769 break; 770 case V4L2_TUNER_ANALOG_TV: 771 case V4L2_TUNER_DIGITAL_TV: 772 ret = simple_set_tv_freq(fe, params); 773 priv->frequency = params->frequency * 62500; 774 break; 775 } 776 priv->bandwidth = 0; 777 778 return ret; 779} 780 781static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf, 782 const struct dvb_frontend_parameters *params) 783{ 784 struct tuner_simple_priv *priv = fe->tuner_priv; 785 786 switch (priv->type) { 787 case TUNER_PHILIPS_FMD1216ME_MK3: 788 case TUNER_PHILIPS_FMD1216MEX_MK3: 789 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ && 790 params->frequency >= 158870000) 791 buf[3] |= 0x08; 792 break; 793 case TUNER_PHILIPS_TD1316: 794 /* determine band */ 795 buf[3] |= (params->frequency < 161000000) ? 1 : 796 (params->frequency < 444000000) ? 2 : 4; 797 798 /* setup PLL filter */ 799 if (params->u.ofdm.bandwidth == BANDWIDTH_8_MHZ) 800 buf[3] |= 1 << 3; 801 break; 802 case TUNER_PHILIPS_TUV1236D: 803 case TUNER_PHILIPS_FCV1236D: 804 { 805 unsigned int new_rf; 806 807 if (dtv_input[priv->nr]) 808 new_rf = dtv_input[priv->nr]; 809 else 810 switch (params->u.vsb.modulation) { 811 case QAM_64: 812 case QAM_256: 813 new_rf = 1; 814 break; 815 case VSB_8: 816 default: 817 new_rf = 0; 818 break; 819 } 820 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf); 821 break; 822 } 823 default: 824 break; 825 } 826} 827 828static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf, 829 const struct dvb_frontend_parameters *params) 830{ 831 /* This function returns the tuned frequency on success, 0 on error */ 832 struct tuner_simple_priv *priv = fe->tuner_priv; 833 struct tunertype *tun = priv->tun; 834 static struct tuner_params *t_params; 835 u8 config, cb; 836 u32 div; 837 int ret; 838 unsigned frequency = params->frequency / 62500; 839 840 if (!tun->stepsize) { 841 /* tuner-core was loaded before the digital tuner was 842 * configured and somehow picked the wrong tuner type */ 843 tuner_err("attempt to treat tuner %d (%s) as digital tuner " 844 "without stepsize defined.\n", 845 priv->type, priv->tun->name); 846 return 0; /* failure */ 847 } 848 849 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL); 850 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb); 851 if (ret < 0) 852 return 0; /* failure */ 853 854 div = ((frequency + t_params->iffreq) * 62500 + offset + 855 tun->stepsize/2) / tun->stepsize; 856 857 buf[0] = div >> 8; 858 buf[1] = div & 0xff; 859 buf[2] = config; 860 buf[3] = cb; 861 862 simple_set_dvb(fe, buf, params); 863 864 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n", 865 tun->name, div, buf[0], buf[1], buf[2], buf[3]); 866 867 /* calculate the frequency we set it to */ 868 return (div * tun->stepsize) - t_params->iffreq; 869} 870 871static int simple_dvb_calc_regs(struct dvb_frontend *fe, 872 struct dvb_frontend_parameters *params, 873 u8 *buf, int buf_len) 874{ 875 struct tuner_simple_priv *priv = fe->tuner_priv; 876 u32 frequency; 877 878 if (buf_len < 5) 879 return -EINVAL; 880 881 frequency = simple_dvb_configure(fe, buf+1, params); 882 if (frequency == 0) 883 return -EINVAL; 884 885 buf[0] = priv->i2c_props.addr; 886 887 priv->frequency = frequency; 888 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? 889 params->u.ofdm.bandwidth : 0; 890 891 return 5; 892} 893 894static int simple_dvb_set_params(struct dvb_frontend *fe, 895 struct dvb_frontend_parameters *params) 896{ 897 struct tuner_simple_priv *priv = fe->tuner_priv; 898 u32 prev_freq, prev_bw; 899 int ret; 900 u8 buf[5]; 901 902 if (priv->i2c_props.adap == NULL) 903 return -EINVAL; 904 905 prev_freq = priv->frequency; 906 prev_bw = priv->bandwidth; 907 908 ret = simple_dvb_calc_regs(fe, params, buf, 5); 909 if (ret != 5) 910 goto fail; 911 912 /* put analog demod in standby when tuning digital */ 913 if (fe->ops.analog_ops.standby) 914 fe->ops.analog_ops.standby(fe); 915 916 if (fe->ops.i2c_gate_ctrl) 917 fe->ops.i2c_gate_ctrl(fe, 1); 918 919 /* buf[0] contains the i2c address, but * 920 * we already have it in i2c_props.addr */ 921 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4); 922 if (ret != 4) 923 goto fail; 924 925 return 0; 926fail: 927 /* calc_regs sets frequency and bandwidth. if we failed, unset them */ 928 priv->frequency = prev_freq; 929 priv->bandwidth = prev_bw; 930 931 return ret; 932} 933 934static int simple_init(struct dvb_frontend *fe) 935{ 936 struct tuner_simple_priv *priv = fe->tuner_priv; 937 938 if (priv->i2c_props.adap == NULL) 939 return -EINVAL; 940 941 if (priv->tun->initdata) { 942 int ret; 943 944 if (fe->ops.i2c_gate_ctrl) 945 fe->ops.i2c_gate_ctrl(fe, 1); 946 947 ret = tuner_i2c_xfer_send(&priv->i2c_props, 948 priv->tun->initdata + 1, 949 priv->tun->initdata[0]); 950 if (ret != priv->tun->initdata[0]) 951 return ret; 952 } 953 954 return 0; 955} 956 957static int simple_sleep(struct dvb_frontend *fe) 958{ 959 struct tuner_simple_priv *priv = fe->tuner_priv; 960 961 if (priv->i2c_props.adap == NULL) 962 return -EINVAL; 963 964 if (priv->tun->sleepdata) { 965 int ret; 966 967 if (fe->ops.i2c_gate_ctrl) 968 fe->ops.i2c_gate_ctrl(fe, 1); 969 970 ret = tuner_i2c_xfer_send(&priv->i2c_props, 971 priv->tun->sleepdata + 1, 972 priv->tun->sleepdata[0]); 973 if (ret != priv->tun->sleepdata[0]) 974 return ret; 975 } 976 977 return 0; 978} 979 980static int simple_release(struct dvb_frontend *fe) 981{ 982 struct tuner_simple_priv *priv = fe->tuner_priv; 983 984 mutex_lock(&tuner_simple_list_mutex); 985 986 if (priv) 987 hybrid_tuner_release_state(priv); 988 989 mutex_unlock(&tuner_simple_list_mutex); 990 991 fe->tuner_priv = NULL; 992 993 return 0; 994} 995 996static int simple_get_frequency(struct dvb_frontend *fe, u32 *frequency) 997{ 998 struct tuner_simple_priv *priv = fe->tuner_priv; 999 *frequency = priv->frequency; 1000 return 0; 1001} 1002 1003static int simple_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth) 1004{ 1005 struct tuner_simple_priv *priv = fe->tuner_priv; 1006 *bandwidth = priv->bandwidth; 1007 return 0; 1008} 1009 1010static struct dvb_tuner_ops simple_tuner_ops = { 1011 .init = simple_init, 1012 .sleep = simple_sleep, 1013 .set_analog_params = simple_set_params, 1014 .set_params = simple_dvb_set_params, 1015 .calc_regs = simple_dvb_calc_regs, 1016 .release = simple_release, 1017 .get_frequency = simple_get_frequency, 1018 .get_bandwidth = simple_get_bandwidth, 1019 .get_status = simple_get_status, 1020 .get_rf_strength = simple_get_rf_strength, 1021}; 1022 1023struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, 1024 struct i2c_adapter *i2c_adap, 1025 u8 i2c_addr, 1026 unsigned int type) 1027{ 1028 struct tuner_simple_priv *priv = NULL; 1029 int instance; 1030 1031 if (type >= tuner_count) { 1032 printk(KERN_WARNING "%s: invalid tuner type: %d (max: %d)\n", 1033 __func__, type, tuner_count-1); 1034 return NULL; 1035 } 1036 1037 /* If i2c_adap is set, check that the tuner is at the correct address. 1038 * Otherwise, if i2c_adap is NULL, the tuner will be programmed directly 1039 * by the digital demod via calc_regs. 1040 */ 1041 if (i2c_adap != NULL) { 1042 u8 b[1]; 1043 struct i2c_msg msg = { 1044 .addr = i2c_addr, .flags = I2C_M_RD, 1045 .buf = b, .len = 1, 1046 }; 1047 1048 if (fe->ops.i2c_gate_ctrl) 1049 fe->ops.i2c_gate_ctrl(fe, 1); 1050 1051 if (1 != i2c_transfer(i2c_adap, &msg, 1)) 1052 printk(KERN_WARNING "tuner-simple %d-%04x: " 1053 "unable to probe %s, proceeding anyway.", 1054 i2c_adapter_id(i2c_adap), i2c_addr, 1055 tuners[type].name); 1056 1057 if (fe->ops.i2c_gate_ctrl) 1058 fe->ops.i2c_gate_ctrl(fe, 0); 1059 } 1060 1061 mutex_lock(&tuner_simple_list_mutex); 1062 1063 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv, 1064 hybrid_tuner_instance_list, 1065 i2c_adap, i2c_addr, 1066 "tuner-simple"); 1067 switch (instance) { 1068 case 0: 1069 mutex_unlock(&tuner_simple_list_mutex); 1070 return NULL; 1071 case 1: 1072 fe->tuner_priv = priv; 1073 1074 priv->type = type; 1075 priv->tun = &tuners[type]; 1076 priv->nr = simple_devcount++; 1077 break; 1078 default: 1079 fe->tuner_priv = priv; 1080 break; 1081 } 1082 1083 mutex_unlock(&tuner_simple_list_mutex); 1084 1085 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops, 1086 sizeof(struct dvb_tuner_ops)); 1087 1088 if (type != priv->type) 1089 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n", 1090 type, priv->type, priv->tun->name); 1091 else 1092 tuner_info("type set to %d (%s)\n", 1093 priv->type, priv->tun->name); 1094 1095 if ((debug) || ((atv_input[priv->nr] > 0) || 1096 (dtv_input[priv->nr] > 0))) { 1097 if (0 == atv_input[priv->nr]) 1098 tuner_info("tuner %d atv rf input will be " 1099 "autoselected\n", priv->nr); 1100 else 1101 tuner_info("tuner %d atv rf input will be " 1102 "set to input %d (insmod option)\n", 1103 priv->nr, atv_input[priv->nr]); 1104 if (0 == dtv_input[priv->nr]) 1105 tuner_info("tuner %d dtv rf input will be " 1106 "autoselected\n", priv->nr); 1107 else 1108 tuner_info("tuner %d dtv rf input will be " 1109 "set to input %d (insmod option)\n", 1110 priv->nr, dtv_input[priv->nr]); 1111 } 1112 1113 strlcpy(fe->ops.tuner_ops.info.name, priv->tun->name, 1114 sizeof(fe->ops.tuner_ops.info.name)); 1115 1116 return fe; 1117} 1118EXPORT_SYMBOL_GPL(simple_tuner_attach); 1119 1120MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver"); 1121MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer"); 1122MODULE_LICENSE("GPL"); 1123 1124/* 1125 * Overrides for Emacs so that we follow Linus's tabbing style. 1126 * --------------------------------------------------------------------------- 1127 * Local variables: 1128 * c-basic-offset: 8 1129 * End: 1130 */ 1131