1145 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * i2c tv tuner chip device driver4 * controls all those simple 4-control-bytes style tuners.5 *6 * This "tuner-simple" module was split apart from the original "tuner" module.7 */8#include <linux/delay.h>9#include <linux/i2c.h>10#include <linux/videodev2.h>11#include <media/tuner.h>12#include <media/v4l2-common.h>13#include <media/tuner-types.h>14#include "tuner-i2c.h"15#include "tuner-simple.h"16 17static int debug;18module_param(debug, int, 0644);19MODULE_PARM_DESC(debug, "enable verbose debug messages");20 21#define TUNER_SIMPLE_MAX 6422static unsigned int simple_devcount;23 24static int offset;25module_param(offset, int, 0664);26MODULE_PARM_DESC(offset, "Allows to specify an offset for tuner");27 28static unsigned int atv_input[TUNER_SIMPLE_MAX] = \29 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };30static unsigned int dtv_input[TUNER_SIMPLE_MAX] = \31 { [0 ... (TUNER_SIMPLE_MAX-1)] = 0 };32module_param_array(atv_input, int, NULL, 0644);33module_param_array(dtv_input, int, NULL, 0644);34MODULE_PARM_DESC(atv_input, "specify atv rf input, 0 for autoselect");35MODULE_PARM_DESC(dtv_input, "specify dtv rf input, 0 for autoselect");36 37/* ---------------------------------------------------------------------- */38 39/* tv standard selection for Temic 4046 FM540 this value takes the low bits of control byte 241 from datasheet Rev.01, Feb.0042 standard BG I L L2 D43 picture IF 38.9 38.9 38.9 33.95 38.944 sound 1 33.4 32.9 32.4 40.45 32.445 sound 2 33.1646 NICAM 33.05 32.348 33.05 33.0547 */48#define TEMIC_SET_PAL_I 0x0549#define TEMIC_SET_PAL_DK 0x0950#define TEMIC_SET_PAL_L 0x0a /* SECAM ? */51#define TEMIC_SET_PAL_L2 0x0b /* change IF ! */52#define TEMIC_SET_PAL_BG 0x0c53 54/* tv tuner system standard selection for Philips FQ1216ME55 this value takes the low bits of control byte 256 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")57 standard BG DK I L L`58 picture carrier 38.90 38.90 38.90 38.90 33.9559 colour 34.47 34.47 34.47 34.47 38.3860 sound 1 33.40 32.40 32.90 32.40 40.4561 sound 2 33.16 - - - -62 NICAM 33.05 33.05 32.35 33.05 39.8063 */64#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/65#define PHILIPS_SET_PAL_BGDK 0x0966#define PHILIPS_SET_PAL_L2 0x0a67#define PHILIPS_SET_PAL_L 0x0b68 69/* system switching for Philips FI1216MF MK270 from datasheet "1996 Jul 09",71 standard BG L L'72 picture carrier 38.90 38.90 33.9573 colour 34.47 34.37 38.3874 sound 1 33.40 32.40 40.4575 sound 2 33.16 - -76 NICAM 33.05 33.05 39.8077 */78#define PHILIPS_MF_SET_STD_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */79#define PHILIPS_MF_SET_STD_L 0x03 /* Used on Secam France */80#define PHILIPS_MF_SET_STD_LC 0x02 /* Used on SECAM L' */81 82/* Control byte */83 84#define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */85#define TUNER_RATIO_SELECT_50 0x0086#define TUNER_RATIO_SELECT_32 0x0287#define TUNER_RATIO_SELECT_166 0x0488#define TUNER_RATIO_SELECT_62 0x0689 90#define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */91 92/* Status byte */93 94#define TUNER_POR 0x8095#define TUNER_FL 0x4096#define TUNER_MODE 0x3897#define TUNER_AFC 0x0798#define TUNER_SIGNAL 0x0799#define TUNER_STEREO 0x10100 101#define TUNER_PLL_LOCKED 0x40102#define TUNER_STEREO_MK3 0x04103 104static DEFINE_MUTEX(tuner_simple_list_mutex);105static LIST_HEAD(hybrid_tuner_instance_list);106 107struct tuner_simple_priv {108 unsigned int nr;109 u16 last_div;110 111 struct tuner_i2c_props i2c_props;112 struct list_head hybrid_tuner_instance_list;113 114 unsigned int type;115 struct tunertype *tun;116 117 u32 frequency;118 u32 bandwidth;119 bool radio_mode;120};121 122/* ---------------------------------------------------------------------- */123 124static int tuner_read_status(struct dvb_frontend *fe)125{126 struct tuner_simple_priv *priv = fe->tuner_priv;127 unsigned char byte;128 129 if (1 != tuner_i2c_xfer_recv(&priv->i2c_props, &byte, 1))130 return 0;131 132 return byte;133}134 135static inline int tuner_signal(const int status)136{137 return (status & TUNER_SIGNAL) << 13;138}139 140static inline int tuner_stereo(const int type, const int status)141{142 switch (type) {143 case TUNER_PHILIPS_FM1216ME_MK3:144 case TUNER_PHILIPS_FM1236_MK3:145 case TUNER_PHILIPS_FM1256_IH3:146 case TUNER_LG_NTSC_TAPE:147 case TUNER_TCL_MF02GIP_5N:148 return ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);149 case TUNER_PHILIPS_FM1216MK5:150 return status | TUNER_STEREO;151 default:152 return status & TUNER_STEREO;153 }154}155 156static inline int tuner_islocked(const int status)157{158 return (status & TUNER_FL);159}160 161static inline int tuner_afcstatus(const int status)162{163 return (status & TUNER_AFC) - 2;164}165 166 167static int simple_get_status(struct dvb_frontend *fe, u32 *status)168{169 struct tuner_simple_priv *priv = fe->tuner_priv;170 int tuner_status;171 172 if (priv->i2c_props.adap == NULL)173 return -EINVAL;174 175 tuner_status = tuner_read_status(fe);176 177 *status = 0;178 179 if (tuner_islocked(tuner_status))180 *status = TUNER_STATUS_LOCKED;181 if (tuner_stereo(priv->type, tuner_status))182 *status |= TUNER_STATUS_STEREO;183 184 tuner_dbg("AFC Status: %d\n", tuner_afcstatus(tuner_status));185 186 return 0;187}188 189static int simple_get_rf_strength(struct dvb_frontend *fe, u16 *strength)190{191 struct tuner_simple_priv *priv = fe->tuner_priv;192 int signal;193 194 if (priv->i2c_props.adap == NULL || !priv->radio_mode)195 return -EINVAL;196 197 signal = tuner_signal(tuner_read_status(fe));198 199 *strength = signal;200 201 tuner_dbg("Signal strength: %d\n", signal);202 203 return 0;204}205 206/* ---------------------------------------------------------------------- */207 208static inline char *tuner_param_name(enum param_type type)209{210 char *name;211 212 switch (type) {213 case TUNER_PARAM_TYPE_RADIO:214 name = "radio";215 break;216 case TUNER_PARAM_TYPE_PAL:217 name = "pal";218 break;219 case TUNER_PARAM_TYPE_SECAM:220 name = "secam";221 break;222 case TUNER_PARAM_TYPE_NTSC:223 name = "ntsc";224 break;225 case TUNER_PARAM_TYPE_DIGITAL:226 name = "digital";227 break;228 default:229 name = "unknown";230 break;231 }232 return name;233}234 235static struct tuner_params *simple_tuner_params(struct dvb_frontend *fe,236 enum param_type desired_type)237{238 struct tuner_simple_priv *priv = fe->tuner_priv;239 struct tunertype *tun = priv->tun;240 int i;241 242 for (i = 0; i < tun->count; i++)243 if (desired_type == tun->params[i].type)244 break;245 246 /* use default tuner params if desired_type not available */247 if (i == tun->count) {248 tuner_dbg("desired params (%s) undefined for tuner %d\n",249 tuner_param_name(desired_type), priv->type);250 i = 0;251 }252 253 tuner_dbg("using tuner params #%d (%s)\n", i,254 tuner_param_name(tun->params[i].type));255 256 return &tun->params[i];257}258 259static int simple_config_lookup(struct dvb_frontend *fe,260 struct tuner_params *t_params,261 unsigned *frequency, u8 *config, u8 *cb)262{263 struct tuner_simple_priv *priv = fe->tuner_priv;264 int i;265 266 for (i = 0; i < t_params->count; i++) {267 if (*frequency > t_params->ranges[i].limit)268 continue;269 break;270 }271 if (i == t_params->count) {272 tuner_dbg("frequency out of range (%d > %d)\n",273 *frequency, t_params->ranges[i - 1].limit);274 *frequency = t_params->ranges[--i].limit;275 }276 *config = t_params->ranges[i].config;277 *cb = t_params->ranges[i].cb;278 279 tuner_dbg("freq = %d.%02d (%d), range = %d, config = 0x%02x, cb = 0x%02x\n",280 *frequency / 16, *frequency % 16 * 100 / 16, *frequency,281 i, *config, *cb);282 283 return i;284}285 286/* ---------------------------------------------------------------------- */287 288static void simple_set_rf_input(struct dvb_frontend *fe,289 u8 *config, u8 *cb, unsigned int rf)290{291 struct tuner_simple_priv *priv = fe->tuner_priv;292 293 switch (priv->type) {294 case TUNER_PHILIPS_TUV1236D:295 switch (rf) {296 case 1:297 *cb |= 0x08;298 break;299 default:300 *cb &= ~0x08;301 break;302 }303 break;304 case TUNER_PHILIPS_FCV1236D:305 switch (rf) {306 case 1:307 *cb |= 0x01;308 break;309 default:310 *cb &= ~0x01;311 break;312 }313 break;314 default:315 break;316 }317}318 319static int simple_std_setup(struct dvb_frontend *fe,320 struct analog_parameters *params,321 u8 *config, u8 *cb)322{323 struct tuner_simple_priv *priv = fe->tuner_priv;324 int rc;325 326 /* tv norm specific stuff for multi-norm tuners */327 switch (priv->type) {328 case TUNER_PHILIPS_SECAM: /* FI1216MF */329 /* 0x01 -> ??? no change ??? */330 /* 0x02 -> PAL BDGHI / SECAM L */331 /* 0x04 -> ??? PAL others / SECAM others ??? */332 *cb &= ~0x03;333 if (params->std & V4L2_STD_SECAM_L)334 /* also valid for V4L2_STD_SECAM */335 *cb |= PHILIPS_MF_SET_STD_L;336 else if (params->std & V4L2_STD_SECAM_LC)337 *cb |= PHILIPS_MF_SET_STD_LC;338 else /* V4L2_STD_B|V4L2_STD_GH */339 *cb |= PHILIPS_MF_SET_STD_BG;340 break;341 342 case TUNER_TEMIC_4046FM5:343 *cb &= ~0x0f;344 345 if (params->std & V4L2_STD_PAL_BG) {346 *cb |= TEMIC_SET_PAL_BG;347 348 } else if (params->std & V4L2_STD_PAL_I) {349 *cb |= TEMIC_SET_PAL_I;350 351 } else if (params->std & V4L2_STD_PAL_DK) {352 *cb |= TEMIC_SET_PAL_DK;353 354 } else if (params->std & V4L2_STD_SECAM_L) {355 *cb |= TEMIC_SET_PAL_L;356 357 }358 break;359 360 case TUNER_PHILIPS_FQ1216ME:361 *cb &= ~0x0f;362 363 if (params->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {364 *cb |= PHILIPS_SET_PAL_BGDK;365 366 } else if (params->std & V4L2_STD_PAL_I) {367 *cb |= PHILIPS_SET_PAL_I;368 369 } else if (params->std & V4L2_STD_SECAM_L) {370 *cb |= PHILIPS_SET_PAL_L;371 372 }373 break;374 375 case TUNER_PHILIPS_FCV1236D:376 /* 0x00 -> ATSC antenna input 1 */377 /* 0x01 -> ATSC antenna input 2 */378 /* 0x02 -> NTSC antenna input 1 */379 /* 0x03 -> NTSC antenna input 2 */380 *cb &= ~0x03;381 if (!(params->std & V4L2_STD_ATSC))382 *cb |= 2;383 break;384 385 case TUNER_MICROTUNE_4042FI5:386 /* Set the charge pump for fast tuning */387 *config |= TUNER_CHARGE_PUMP;388 break;389 390 case TUNER_PHILIPS_TUV1236D:391 {392 struct tuner_i2c_props i2c = priv->i2c_props;393 /* 0x40 -> ATSC antenna input 1 */394 /* 0x48 -> ATSC antenna input 2 */395 /* 0x00 -> NTSC antenna input 1 */396 /* 0x08 -> NTSC antenna input 2 */397 u8 buffer[4] = { 0x14, 0x00, 0x17, 0x00};398 *cb &= ~0x40;399 if (params->std & V4L2_STD_ATSC) {400 *cb |= 0x40;401 buffer[1] = 0x04;402 }403 /* set to the correct mode (analog or digital) */404 i2c.addr = 0x0a;405 rc = tuner_i2c_xfer_send(&i2c, &buffer[0], 2);406 if (2 != rc)407 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",408 rc);409 rc = tuner_i2c_xfer_send(&i2c, &buffer[2], 2);410 if (2 != rc)411 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",412 rc);413 break;414 }415 }416 if (atv_input[priv->nr])417 simple_set_rf_input(fe, config, cb, atv_input[priv->nr]);418 419 return 0;420}421 422static int simple_set_aux_byte(struct dvb_frontend *fe, u8 config, u8 aux)423{424 struct tuner_simple_priv *priv = fe->tuner_priv;425 int rc;426 u8 buffer[2];427 428 buffer[0] = (config & ~0x38) | 0x18;429 buffer[1] = aux;430 431 tuner_dbg("setting aux byte: 0x%02x 0x%02x\n", buffer[0], buffer[1]);432 433 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 2);434 if (2 != rc)435 tuner_warn("i2c i/o error: rc == %d (should be 2)\n", rc);436 437 return rc == 2 ? 0 : rc;438}439 440static int simple_post_tune(struct dvb_frontend *fe, u8 *buffer,441 u16 div, u8 config, u8 cb)442{443 struct tuner_simple_priv *priv = fe->tuner_priv;444 int rc;445 446 switch (priv->type) {447 case TUNER_LG_TDVS_H06XF:448 simple_set_aux_byte(fe, config, 0x20);449 break;450 case TUNER_PHILIPS_FQ1216LME_MK3:451 simple_set_aux_byte(fe, config, 0x60); /* External AGC */452 break;453 case TUNER_MICROTUNE_4042FI5:454 {455 /* FIXME - this may also work for other tuners */456 unsigned long timeout = jiffies + msecs_to_jiffies(1);457 u8 status_byte = 0;458 459 /* Wait until the PLL locks */460 for (;;) {461 if (time_after(jiffies, timeout))462 return 0;463 rc = tuner_i2c_xfer_recv(&priv->i2c_props,464 &status_byte, 1);465 if (1 != rc) {466 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",467 rc);468 break;469 }470 if (status_byte & TUNER_PLL_LOCKED)471 break;472 udelay(10);473 }474 475 /* Set the charge pump for optimized phase noise figure */476 config &= ~TUNER_CHARGE_PUMP;477 buffer[0] = (div>>8) & 0x7f;478 buffer[1] = div & 0xff;479 buffer[2] = config;480 buffer[3] = cb;481 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",482 buffer[0], buffer[1], buffer[2], buffer[3]);483 484 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);485 if (4 != rc)486 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",487 rc);488 break;489 }490 }491 492 return 0;493}494 495static int simple_radio_bandswitch(struct dvb_frontend *fe, u8 *buffer)496{497 struct tuner_simple_priv *priv = fe->tuner_priv;498 499 switch (priv->type) {500 case TUNER_TENA_9533_DI:501 case TUNER_YMEC_TVF_5533MF:502 tuner_dbg("This tuner doesn't have FM. Most cards have a TEA5767 for FM\n");503 return -EINVAL;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 STD557 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 STD560 592 =16*37.00 D China561 590 =16.36.875 B Australia562 543.2=16*33.95 L' STD563 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, 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 bool mono = params->audmode == V4L2_TUNER_MODE_MONO;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 if (simple_radio_bandswitch(fe, &buffer[0]))706 return 0;707 708 /* Convert from 1/16 kHz V4L steps to 1/20 MHz (=50 kHz) PLL steps709 freq * (1 Mhz / 16000 V4L steps) * (20 PLL steps / 1 MHz) =710 freq * (1/800) */711 div = (freq + 400) / 800;712 713 if (t_params->cb_first_if_lower_freq && div < priv->last_div) {714 buffer[0] = buffer[2];715 buffer[1] = buffer[3];716 buffer[2] = (div>>8) & 0x7f;717 buffer[3] = div & 0xff;718 } else {719 buffer[0] = (div>>8) & 0x7f;720 buffer[1] = div & 0xff;721 }722 723 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",724 buffer[0], buffer[1], buffer[2], buffer[3]);725 priv->last_div = div;726 727 if (t_params->has_tda9887) {728 int config = 0;729 struct v4l2_priv_tun_config tda9887_cfg;730 731 tda9887_cfg.tuner = TUNER_TDA9887;732 tda9887_cfg.priv = &config;733 734 if (t_params->port1_active &&735 !t_params->port1_fm_high_sensitivity)736 config |= TDA9887_PORT1_ACTIVE;737 if (t_params->port2_active &&738 !t_params->port2_fm_high_sensitivity)739 config |= TDA9887_PORT2_ACTIVE;740 if (t_params->intercarrier_mode)741 config |= TDA9887_INTERCARRIER;742 if (t_params->port1_set_for_fm_mono && mono)743 config &= ~TDA9887_PORT1_ACTIVE;744 if (t_params->fm_gain_normal)745 config |= TDA9887_GAIN_NORMAL;746 if (t_params->radio_if == 2)747 config |= TDA9887_RIF_41_3;748 i2c_clients_command(priv->i2c_props.adap, TUNER_SET_CONFIG,749 &tda9887_cfg);750 }751 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);752 if (4 != rc)753 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);754 755 /* Write AUX byte */756 switch (priv->type) {757 case TUNER_PHILIPS_FM1216ME_MK3:758 buffer[2] = 0x98;759 buffer[3] = 0x20; /* set TOP AGC */760 rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 4);761 if (4 != rc)762 tuner_warn("i2c i/o error: rc == %d (should be 4)\n", rc);763 break;764 }765 766 return 0;767}768 769static int simple_set_params(struct dvb_frontend *fe,770 struct analog_parameters *params)771{772 struct tuner_simple_priv *priv = fe->tuner_priv;773 int ret = -EINVAL;774 775 if (priv->i2c_props.adap == NULL)776 return -EINVAL;777 778 switch (params->mode) {779 case V4L2_TUNER_RADIO:780 priv->radio_mode = true;781 ret = simple_set_radio_freq(fe, params);782 priv->frequency = params->frequency * 125 / 2;783 break;784 case V4L2_TUNER_ANALOG_TV:785 case V4L2_TUNER_DIGITAL_TV:786 priv->radio_mode = false;787 ret = simple_set_tv_freq(fe, params);788 priv->frequency = params->frequency * 62500;789 break;790 }791 priv->bandwidth = 0;792 793 return ret;794}795 796static void simple_set_dvb(struct dvb_frontend *fe, u8 *buf,797 const u32 delsys,798 const u32 frequency,799 const u32 bandwidth)800{801 struct tuner_simple_priv *priv = fe->tuner_priv;802 803 switch (priv->type) {804 case TUNER_PHILIPS_FMD1216ME_MK3:805 case TUNER_PHILIPS_FMD1216MEX_MK3:806 if (bandwidth == 8000000 &&807 frequency >= 158870000)808 buf[3] |= 0x08;809 break;810 case TUNER_PHILIPS_TD1316:811 /* determine band */812 buf[3] |= (frequency < 161000000) ? 1 :813 (frequency < 444000000) ? 2 : 4;814 815 /* setup PLL filter */816 if (bandwidth == 8000000)817 buf[3] |= 1 << 3;818 break;819 case TUNER_PHILIPS_TUV1236D:820 case TUNER_PHILIPS_FCV1236D:821 {822 unsigned int new_rf;823 824 if (dtv_input[priv->nr])825 new_rf = dtv_input[priv->nr];826 else827 switch (delsys) {828 case SYS_DVBC_ANNEX_B:829 new_rf = 1;830 break;831 case SYS_ATSC:832 default:833 new_rf = 0;834 break;835 }836 simple_set_rf_input(fe, &buf[2], &buf[3], new_rf);837 break;838 }839 default:840 break;841 }842}843 844static u32 simple_dvb_configure(struct dvb_frontend *fe, u8 *buf,845 const u32 delsys,846 const u32 freq,847 const u32 bw)848{849 /* This function returns the tuned frequency on success, 0 on error */850 struct tuner_simple_priv *priv = fe->tuner_priv;851 struct tunertype *tun = priv->tun;852 struct tuner_params *t_params;853 u8 config, cb;854 u32 div;855 int ret;856 u32 frequency = freq / 62500;857 858 if (!tun->stepsize) {859 /* tuner-core was loaded before the digital tuner was860 * configured and somehow picked the wrong tuner type */861 tuner_err("attempt to treat tuner %d (%s) as digital tuner without stepsize defined.\n",862 priv->type, priv->tun->name);863 return 0; /* failure */864 }865 866 t_params = simple_tuner_params(fe, TUNER_PARAM_TYPE_DIGITAL);867 ret = simple_config_lookup(fe, t_params, &frequency, &config, &cb);868 if (ret < 0)869 return 0; /* failure */870 871 div = ((frequency + t_params->iffreq) * 62500 + offset +872 tun->stepsize/2) / tun->stepsize;873 874 buf[0] = div >> 8;875 buf[1] = div & 0xff;876 buf[2] = config;877 buf[3] = cb;878 879 simple_set_dvb(fe, buf, delsys, freq, bw);880 881 tuner_dbg("%s: div=%d | buf=0x%02x,0x%02x,0x%02x,0x%02x\n",882 tun->name, div, buf[0], buf[1], buf[2], buf[3]);883 884 /* calculate the frequency we set it to */885 return (div * tun->stepsize) - t_params->iffreq;886}887 888static int simple_dvb_calc_regs(struct dvb_frontend *fe,889 u8 *buf, int buf_len)890{891 struct dtv_frontend_properties *c = &fe->dtv_property_cache;892 u32 delsys = c->delivery_system;893 u32 bw = c->bandwidth_hz;894 struct tuner_simple_priv *priv = fe->tuner_priv;895 u32 frequency;896 897 if (buf_len < 5)898 return -EINVAL;899 900 frequency = simple_dvb_configure(fe, buf+1, delsys, c->frequency, bw);901 if (frequency == 0)902 return -EINVAL;903 904 buf[0] = priv->i2c_props.addr;905 906 priv->frequency = frequency;907 priv->bandwidth = c->bandwidth_hz;908 909 return 5;910}911 912static int simple_dvb_set_params(struct dvb_frontend *fe)913{914 struct dtv_frontend_properties *c = &fe->dtv_property_cache;915 u32 delsys = c->delivery_system;916 u32 bw = c->bandwidth_hz;917 u32 freq = c->frequency;918 struct tuner_simple_priv *priv = fe->tuner_priv;919 u32 frequency;920 u32 prev_freq, prev_bw;921 int ret;922 u8 buf[5];923 924 if (priv->i2c_props.adap == NULL)925 return -EINVAL;926 927 prev_freq = priv->frequency;928 prev_bw = priv->bandwidth;929 930 frequency = simple_dvb_configure(fe, buf+1, delsys, freq, bw);931 if (frequency == 0)932 return -EINVAL;933 934 buf[0] = priv->i2c_props.addr;935 936 priv->frequency = frequency;937 priv->bandwidth = bw;938 939 /* put analog demod in standby when tuning digital */940 if (fe->ops.analog_ops.standby)941 fe->ops.analog_ops.standby(fe);942 943 if (fe->ops.i2c_gate_ctrl)944 fe->ops.i2c_gate_ctrl(fe, 1);945 946 /* buf[0] contains the i2c address, but *947 * we already have it in i2c_props.addr */948 ret = tuner_i2c_xfer_send(&priv->i2c_props, buf+1, 4);949 if (ret != 4)950 goto fail;951 952 return 0;953fail:954 /* calc_regs sets frequency and bandwidth. if we failed, unset them */955 priv->frequency = prev_freq;956 priv->bandwidth = prev_bw;957 958 return ret;959}960 961static int simple_init(struct dvb_frontend *fe)962{963 struct tuner_simple_priv *priv = fe->tuner_priv;964 965 if (priv->i2c_props.adap == NULL)966 return -EINVAL;967 968 if (priv->tun->initdata) {969 int ret;970 971 if (fe->ops.i2c_gate_ctrl)972 fe->ops.i2c_gate_ctrl(fe, 1);973 974 ret = tuner_i2c_xfer_send(&priv->i2c_props,975 priv->tun->initdata + 1,976 priv->tun->initdata[0]);977 if (ret != priv->tun->initdata[0])978 return ret;979 }980 981 return 0;982}983 984static int simple_sleep(struct dvb_frontend *fe)985{986 struct tuner_simple_priv *priv = fe->tuner_priv;987 988 if (priv->i2c_props.adap == NULL)989 return -EINVAL;990 991 if (priv->tun->sleepdata) {992 int ret;993 994 if (fe->ops.i2c_gate_ctrl)995 fe->ops.i2c_gate_ctrl(fe, 1);996 997 ret = tuner_i2c_xfer_send(&priv->i2c_props,998 priv->tun->sleepdata + 1,999 priv->tun->sleepdata[0]);1000 if (ret != priv->tun->sleepdata[0])1001 return ret;1002 }1003 1004 return 0;1005}1006 1007static void simple_release(struct dvb_frontend *fe)1008{1009 struct tuner_simple_priv *priv = fe->tuner_priv;1010 1011 mutex_lock(&tuner_simple_list_mutex);1012 1013 if (priv)1014 hybrid_tuner_release_state(priv);1015 1016 mutex_unlock(&tuner_simple_list_mutex);1017 1018 fe->tuner_priv = NULL;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 const 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 directly1064 * 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: unable to probe %s, proceeding anyway.",1078 i2c_adapter_id(i2c_adap), i2c_addr,1079 tuners[type].name);1080 1081 if (fe->ops.i2c_gate_ctrl)1082 fe->ops.i2c_gate_ctrl(fe, 0);1083 }1084 1085 mutex_lock(&tuner_simple_list_mutex);1086 1087 instance = hybrid_tuner_request_state(struct tuner_simple_priv, priv,1088 hybrid_tuner_instance_list,1089 i2c_adap, i2c_addr,1090 "tuner-simple");1091 switch (instance) {1092 case 0:1093 mutex_unlock(&tuner_simple_list_mutex);1094 return NULL;1095 case 1:1096 fe->tuner_priv = priv;1097 1098 priv->type = type;1099 priv->tun = &tuners[type];1100 priv->nr = simple_devcount++;1101 break;1102 default:1103 fe->tuner_priv = priv;1104 break;1105 }1106 1107 mutex_unlock(&tuner_simple_list_mutex);1108 1109 memcpy(&fe->ops.tuner_ops, &simple_tuner_ops,1110 sizeof(struct dvb_tuner_ops));1111 1112 if (type != priv->type)1113 tuner_warn("couldn't set type to %d. Using %d (%s) instead\n",1114 type, priv->type, priv->tun->name);1115 else1116 tuner_info("type set to %d (%s)\n",1117 priv->type, priv->tun->name);1118 1119 if ((debug) || ((atv_input[priv->nr] > 0) ||1120 (dtv_input[priv->nr] > 0))) {1121 if (0 == atv_input[priv->nr])1122 tuner_info("tuner %d atv rf input will be autoselected\n",1123 priv->nr);1124 else1125 tuner_info("tuner %d atv rf input will be set to input %d (insmod option)\n",1126 priv->nr, atv_input[priv->nr]);1127 if (0 == dtv_input[priv->nr])1128 tuner_info("tuner %d dtv rf input will be autoselected\n",1129 priv->nr);1130 else1131 tuner_info("tuner %d dtv rf input will be set to input %d (insmod option)\n",1132 priv->nr, dtv_input[priv->nr]);1133 }1134 1135 strscpy(fe->ops.tuner_ops.info.name, priv->tun->name,1136 sizeof(fe->ops.tuner_ops.info.name));1137 1138 return fe;1139}1140EXPORT_SYMBOL_GPL(simple_tuner_attach);1141 1142MODULE_DESCRIPTION("Simple 4-control-bytes style tuner driver");1143MODULE_AUTHOR("Ralph Metzler, Gerd Knorr, Gunther Mayer");1144MODULE_LICENSE("GPL");1145