err.no Git - linux-2.6/blob - drivers/media/video/tda8290.c

   1 /*
   2
   3    i2c tv tuner chip device driver
   4    controls the philips tda8290+75 tuner chip combo.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19
  20    This "tda8290" module was split apart from the original "tuner" module.
  21 */
  22
  23 #include <linux/i2c.h>
  24 #include <linux/delay.h>
  25 #include <linux/videodev.h>
  26 #include "tda8290.h"
  27 #include "tda827x.h"
  28 #include "tda18271.h"
  29
  30 static int tuner_debug;
  31 module_param_named(debug, tuner_debug, int, 0644);
  32 MODULE_PARM_DESC(debug, "enable verbose debug messages");
  33
  34 #define PREFIX "tda8290 "
  35
  36 /* ---------------------------------------------------------------------- */
  37
  38 struct tda8290_priv {
  39         struct tuner_i2c_props i2c_props;
  40
  41         unsigned char tda8290_easy_mode;
  42
  43         unsigned char tda827x_addr;
  44         unsigned char tda827x_ver;
  45
  46         struct tda827x_config cfg;
  47
  48         struct tuner *t;
  49 };
  50
  51 /*---------------------------------------------------------------------*/
  52
  53 static void tda8290_i2c_bridge(struct dvb_frontend *fe, int close)
  54 {
  55         struct tda8290_priv *priv = fe->analog_demod_priv;
  56
  57         unsigned char  enable[2] = { 0x21, 0xC0 };
  58         unsigned char disable[2] = { 0x21, 0x00 };
  59         unsigned char *msg;
  60         if(close) {
  61                 msg = enable;
  62                 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
  63                 /* let the bridge stabilize */
  64                 msleep(20);
  65         } else {
  66                 msg = disable;
  67                 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
  68         }
  69 }
  70
  71 static void tda8295_i2c_bridge(struct dvb_frontend *fe, int close)
  72 {
  73         struct tda8290_priv *priv = fe->analog_demod_priv;
  74
  75         unsigned char  enable[2] = { 0x45, 0xc1 };
  76         unsigned char disable[2] = { 0x46, 0x00 };
  77         unsigned char buf[3] = { 0x45, 0x01, 0x00 };
  78         unsigned char *msg;
  79         if (close) {
  80                 msg = enable;
  81                 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
  82                 /* let the bridge stabilize */
  83                 msleep(20);
  84         } else {
  85                 msg = disable;
  86                 tuner_i2c_xfer_send(&priv->i2c_props, msg, 1);
  87                 tuner_i2c_xfer_recv(&priv->i2c_props, &msg[1], 1);
  88
  89                 buf[2] = msg[1];
  90                 buf[2] &= ~0x04;
  91                 tuner_i2c_xfer_send(&priv->i2c_props, buf, 3);
  92                 msleep(5);
  93
  94                 msg[1] |= 0x04;
  95                 tuner_i2c_xfer_send(&priv->i2c_props, msg, 2);
  96         }
  97 }
  98
  99 /*---------------------------------------------------------------------*/
 100
 101 static void set_audio(struct dvb_frontend *fe)
 102 {
 103         struct tda8290_priv *priv = fe->analog_demod_priv;
 104         struct tuner *t = priv->t;
 105         char* mode;
 106
 107         priv->cfg.tda827x_lpsel = 0;
 108         if (t->std & V4L2_STD_MN) {
 109                 priv->cfg.sgIF = 92;
 110                 priv->tda8290_easy_mode = 0x01;
 111                 priv->cfg.tda827x_lpsel = 1;
 112                 mode = "MN";
 113         } else if (t->std & V4L2_STD_B) {
 114                 priv->cfg.sgIF = 108;
 115                 priv->tda8290_easy_mode = 0x02;
 116                 mode = "B";
 117         } else if (t->std & V4L2_STD_GH) {
 118                 priv->cfg.sgIF = 124;
 119                 priv->tda8290_easy_mode = 0x04;
 120                 mode = "GH";
 121         } else if (t->std & V4L2_STD_PAL_I) {
 122                 priv->cfg.sgIF = 124;
 123                 priv->tda8290_easy_mode = 0x08;
 124                 mode = "I";
 125         } else if (t->std & V4L2_STD_DK) {
 126                 priv->cfg.sgIF = 124;
 127                 priv->tda8290_easy_mode = 0x10;
 128                 mode = "DK";
 129         } else if (t->std & V4L2_STD_SECAM_L) {
 130                 priv->cfg.sgIF = 124;
 131                 priv->tda8290_easy_mode = 0x20;
 132                 mode = "L";
 133         } else if (t->std & V4L2_STD_SECAM_LC) {
 134                 priv->cfg.sgIF = 20;
 135                 priv->tda8290_easy_mode = 0x40;
 136                 mode = "LC";
 137         } else {
 138                 priv->cfg.sgIF = 124;
 139                 priv->tda8290_easy_mode = 0x10;
 140                 mode = "xx";
 141         }
 142
 143         if (t->mode == V4L2_TUNER_RADIO)
 144                 priv->cfg.sgIF = 88; /* if frequency is 5.5 MHz */
 145
 146         tuner_dbg("setting tda8290 to system %s\n", mode);
 147 }
 148
 149 static void tda8290_set_freq(struct dvb_frontend *fe, unsigned int freq)
 150 {
 151         struct tda8290_priv *priv = fe->analog_demod_priv;
 152         struct tuner *t = priv->t;
 153
 154         unsigned char soft_reset[]  = { 0x00, 0x00 };
 155         unsigned char easy_mode[]   = { 0x01, priv->tda8290_easy_mode };
 156         unsigned char expert_mode[] = { 0x01, 0x80 };
 157         unsigned char agc_out_on[]  = { 0x02, 0x00 };
 158         unsigned char gainset_off[] = { 0x28, 0x14 };
 159         unsigned char if_agc_spd[]  = { 0x0f, 0x88 };
 160         unsigned char adc_head_6[]  = { 0x05, 0x04 };
 161         unsigned char adc_head_9[]  = { 0x05, 0x02 };
 162         unsigned char adc_head_12[] = { 0x05, 0x01 };
 163         unsigned char pll_bw_nom[]  = { 0x0d, 0x47 };
 164         unsigned char pll_bw_low[]  = { 0x0d, 0x27 };
 165         unsigned char gainset_2[]   = { 0x28, 0x64 };
 166         unsigned char agc_rst_on[]  = { 0x0e, 0x0b };
 167         unsigned char agc_rst_off[] = { 0x0e, 0x09 };
 168         unsigned char if_agc_set[]  = { 0x0f, 0x81 };
 169         unsigned char addr_adc_sat  = 0x1a;
 170         unsigned char addr_agc_stat = 0x1d;
 171         unsigned char addr_pll_stat = 0x1b;
 172         unsigned char adc_sat, agc_stat,
 173                       pll_stat;
 174         int i;
 175
 176         struct analog_parameters params = {
 177                 .frequency = freq,
 178                 .mode      = t->mode,
 179                 .audmode   = t->audmode,
 180                 .std       = t->std
 181         };
 182
 183         set_audio(fe);
 184
 185         tuner_dbg("tda827xa config is 0x%02x\n", t->config);
 186         tuner_i2c_xfer_send(&priv->i2c_props, easy_mode, 2);
 187         tuner_i2c_xfer_send(&priv->i2c_props, agc_out_on, 2);
 188         tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
 189         msleep(1);
 190
 191         expert_mode[1] = priv->tda8290_easy_mode + 0x80;
 192         tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
 193         tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
 194         tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
 195         if (priv->tda8290_easy_mode & 0x60)
 196                 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
 197         else
 198                 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
 199         tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
 200
 201         tda8290_i2c_bridge(fe, 1);
 202
 203         if (fe->ops.tuner_ops.set_analog_params)
 204                 fe->ops.tuner_ops.set_analog_params(fe, &params);
 205
 206         for (i = 0; i < 3; i++) {
 207                 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
 208                 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
 209                 if (pll_stat & 0x80) {
 210                         tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
 211                         tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
 212                         tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
 213                         tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
 214                         tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
 215                         break;
 216                 } else {
 217                         tuner_dbg("tda8290 not locked, no signal?\n");
 218                         msleep(100);
 219                 }
 220         }
 221         /* adjust headroom resp. gain */
 222         if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
 223                 tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
 224                            agc_stat, adc_sat, pll_stat & 0x80);
 225                 tuner_i2c_xfer_send(&priv->i2c_props, gainset_2, 2);
 226                 msleep(100);
 227                 tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
 228                 tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
 229                 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
 230                 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
 231                 if ((agc_stat > 115) || !(pll_stat & 0x80)) {
 232                         tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
 233                                    agc_stat, pll_stat & 0x80);
 234                         if (priv->cfg.agcf)
 235                                 priv->cfg.agcf(fe);
 236                         msleep(100);
 237                         tuner_i2c_xfer_send(&priv->i2c_props, &addr_agc_stat, 1);
 238                         tuner_i2c_xfer_recv(&priv->i2c_props, &agc_stat, 1);
 239                         tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
 240                         tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
 241                         if((agc_stat > 115) || !(pll_stat & 0x80)) {
 242                                 tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
 243                                 tuner_i2c_xfer_send(&priv->i2c_props, adc_head_12, 2);
 244                                 tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_low, 2);
 245                                 msleep(100);
 246                         }
 247                 }
 248         }
 249
 250         /* l/ l' deadlock? */
 251         if(priv->tda8290_easy_mode & 0x60) {
 252                 tuner_i2c_xfer_send(&priv->i2c_props, &addr_adc_sat, 1);
 253                 tuner_i2c_xfer_recv(&priv->i2c_props, &adc_sat, 1);
 254                 tuner_i2c_xfer_send(&priv->i2c_props, &addr_pll_stat, 1);
 255                 tuner_i2c_xfer_recv(&priv->i2c_props, &pll_stat, 1);
 256                 if ((adc_sat > 20) || !(pll_stat & 0x80)) {
 257                         tuner_dbg("trying to resolve SECAM L deadlock\n");
 258                         tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_on, 2);
 259                         msleep(40);
 260                         tuner_i2c_xfer_send(&priv->i2c_props, agc_rst_off, 2);
 261                 }
 262         }
 263
 264         tda8290_i2c_bridge(fe, 0);
 265         tuner_i2c_xfer_send(&priv->i2c_props, if_agc_set, 2);
 266 }
 267
 268 /*---------------------------------------------------------------------*/
 269
 270 static void tda8295_power(struct dvb_frontend *fe, int enable)
 271 {
 272         struct tda8290_priv *priv = fe->analog_demod_priv;
 273         unsigned char buf[] = { 0x30, 0x00 }; /* clb_stdbt */
 274
 275         tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
 276         tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
 277
 278         if (enable)
 279                 buf[1] = 0x01;
 280         else
 281                 buf[1] = 0x03;
 282
 283         tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
 284 }
 285
 286 static void tda8295_set_easy_mode(struct dvb_frontend *fe, int enable)
 287 {
 288         struct tda8290_priv *priv = fe->analog_demod_priv;
 289         unsigned char buf[] = { 0x01, 0x00 };
 290
 291         tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
 292         tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
 293
 294         if (enable)
 295                 buf[1] = 0x01; /* rising edge sets regs 0x02 - 0x23 */
 296         else
 297                 buf[1] = 0x00; /* reset active bit */
 298
 299         tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
 300 }
 301
 302 static void tda8295_set_video_std(struct dvb_frontend *fe)
 303 {
 304         struct tda8290_priv *priv = fe->analog_demod_priv;
 305         unsigned char buf[] = { 0x00, priv->tda8290_easy_mode };
 306
 307         tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
 308
 309         tda8295_set_easy_mode(fe, 1);
 310         msleep(20);
 311         tda8295_set_easy_mode(fe, 0);
 312 }
 313
 314 /*---------------------------------------------------------------------*/
 315
 316 static void tda8295_agc1_out(struct dvb_frontend *fe, int enable)
 317 {
 318         struct tda8290_priv *priv = fe->analog_demod_priv;
 319         unsigned char buf[] = { 0x02, 0x00 }; /* DIV_FUNC */
 320
 321         tuner_i2c_xfer_send(&priv->i2c_props, &buf[0], 1);
 322         tuner_i2c_xfer_recv(&priv->i2c_props, &buf[1], 1);
 323
 324         if (enable)
 325                 buf[1] &= ~0x40;
 326         else
 327                 buf[1] |= 0x40;
 328
 329         tuner_i2c_xfer_send(&priv->i2c_props, buf, 2);
 330 }
 331
 332 static void tda8295_agc2_out(struct dvb_frontend *fe, int enable)
 333 {
 334         struct tda8290_priv *priv = fe->analog_demod_priv;
 335         unsigned char set_gpio_cf[]    = { 0x44, 0x00 };
 336         unsigned char set_gpio_val[]   = { 0x46, 0x00 };
 337
 338         tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_cf[0], 1);
 339         tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_cf[1], 1);
 340         tuner_i2c_xfer_send(&priv->i2c_props, &set_gpio_val[0], 1);
 341         tuner_i2c_xfer_recv(&priv->i2c_props, &set_gpio_val[1], 1);
 342
 343         set_gpio_cf[1] &= 0xf0; /* clear GPIO_0 bits 3-0 */
 344
 345         if (enable) {
 346                 set_gpio_cf[1]  |= 0x01; /* config GPIO_0 as Open Drain Out */
 347                 set_gpio_val[1] &= 0xfe; /* set GPIO_0 pin low */
 348         }
 349         tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_cf, 2);
 350         tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_val, 2);
 351 }
 352
 353 static int tda8295_has_signal(struct dvb_frontend *fe)
 354 {
 355         struct tda8290_priv *priv = fe->analog_demod_priv;
 356
 357         unsigned char hvpll_stat = 0x26;
 358         unsigned char ret;
 359
 360         tuner_i2c_xfer_send(&priv->i2c_props, &hvpll_stat, 1);
 361         tuner_i2c_xfer_recv(&priv->i2c_props, &ret, 1);
 362         return (ret & 0x01) ? 65535 : 0;
 363 }
 364
 365 /*---------------------------------------------------------------------*/
 366
 367 static void tda8295_set_freq(struct dvb_frontend *fe, unsigned int freq)
 368 {
 369         struct tda8290_priv *priv = fe->analog_demod_priv;
 370         struct tuner *t = priv->t;
 371         u16 ifc;
 372
 373         unsigned char blanking_mode[]     = { 0x1d, 0x00 };
 374
 375         struct analog_parameters params = {
 376                 .frequency = freq,
 377                 .mode      = t->mode,
 378                 .audmode   = t->audmode,
 379                 .std       = t->std
 380         };
 381
 382         set_audio(fe);
 383
 384         ifc = priv->cfg.sgIF; /* FIXME */
 385
 386         tuner_dbg("%s: ifc = %u, freq = %d\n", __FUNCTION__, ifc, freq);
 387
 388         tda8295_power(fe, 1);
 389         tda8295_agc1_out(fe, 1);
 390
 391         tuner_i2c_xfer_send(&priv->i2c_props, &blanking_mode[0], 1);
 392         tuner_i2c_xfer_recv(&priv->i2c_props, &blanking_mode[1], 1);
 393
 394         tda8295_set_video_std(fe);
 395
 396         blanking_mode[1] = 0x03;
 397         tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
 398         msleep(20);
 399
 400         tda8295_i2c_bridge(fe, 1);
 401
 402         if (fe->ops.tuner_ops.set_analog_params)
 403                 fe->ops.tuner_ops.set_analog_params(fe, &params);
 404
 405         if (priv->cfg.agcf)
 406                 priv->cfg.agcf(fe);
 407
 408         if (tda8295_has_signal(fe))
 409                 tuner_dbg("tda8295 is locked\n");
 410         else
 411                 tuner_dbg("tda8295 not locked, no signal?\n");
 412
 413         tda8295_i2c_bridge(fe, 0);
 414 }
 415
 416 /*---------------------------------------------------------------------*/
 417
 418 static int tda8290_has_signal(struct dvb_frontend *fe)
 419 {
 420         struct tda8290_priv *priv = fe->analog_demod_priv;
 421
 422         unsigned char i2c_get_afc[1] = { 0x1B };
 423         unsigned char afc = 0;
 424
 425         tuner_i2c_xfer_send(&priv->i2c_props, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
 426         tuner_i2c_xfer_recv(&priv->i2c_props, &afc, 1);
 427         return (afc & 0x80)? 65535:0;
 428 }
 429
 430 /*---------------------------------------------------------------------*/
 431
 432 static void tda8290_standby(struct dvb_frontend *fe)
 433 {
 434         struct tda8290_priv *priv = fe->analog_demod_priv;
 435
 436         unsigned char cb1[] = { 0x30, 0xD0 };
 437         unsigned char tda8290_standby[] = { 0x00, 0x02 };
 438         unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
 439         struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
 440
 441         tda8290_i2c_bridge(fe, 1);
 442         if (priv->tda827x_ver != 0)
 443                 cb1[1] = 0x90;
 444         i2c_transfer(priv->i2c_props.adap, &msg, 1);
 445         tda8290_i2c_bridge(fe, 0);
 446         tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
 447         tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
 448 }
 449
 450 static void tda8295_standby(struct dvb_frontend *fe)
 451 {
 452         tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */
 453
 454         tda8295_power(fe, 0);
 455 }
 456
 457 static void tda8290_init_if(struct dvb_frontend *fe)
 458 {
 459         struct tda8290_priv *priv = fe->analog_demod_priv;
 460         struct tuner *t = priv->t;
 461
 462         unsigned char set_VS[] = { 0x30, 0x6F };
 463         unsigned char set_GP00_CF[] = { 0x20, 0x01 };
 464         unsigned char set_GP01_CF[] = { 0x20, 0x0B };
 465
 466         if ((t->config == 1) || (t->config == 2))
 467                 tuner_i2c_xfer_send(&priv->i2c_props, set_GP00_CF, 2);
 468         else
 469                 tuner_i2c_xfer_send(&priv->i2c_props, set_GP01_CF, 2);
 470         tuner_i2c_xfer_send(&priv->i2c_props, set_VS, 2);
 471 }
 472
 473 static void tda8295_init_if(struct dvb_frontend *fe)
 474 {
 475         struct tda8290_priv *priv = fe->analog_demod_priv;
 476
 477         static unsigned char set_adc_ctl[]       = { 0x33, 0x14 };
 478         static unsigned char set_adc_ctl2[]      = { 0x34, 0x00 };
 479         static unsigned char set_pll_reg6[]      = { 0x3e, 0x63 };
 480         static unsigned char set_pll_reg0[]      = { 0x38, 0x23 };
 481         static unsigned char set_pll_reg7[]      = { 0x3f, 0x01 };
 482         static unsigned char set_pll_reg10[]     = { 0x42, 0x61 };
 483         static unsigned char set_gpio_reg0[]     = { 0x44, 0x0b };
 484
 485         tda8295_power(fe, 1);
 486
 487         tda8295_set_easy_mode(fe, 0);
 488         tda8295_set_video_std(fe);
 489
 490         tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
 491         tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
 492         tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
 493         tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
 494         tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
 495         tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
 496         tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);
 497
 498         tda8295_agc1_out(fe, 0);
 499         tda8295_agc2_out(fe, 0);
 500 }
 501
 502 static void tda8290_init_tuner(struct dvb_frontend *fe)
 503 {
 504         struct tda8290_priv *priv = fe->analog_demod_priv;
 505         unsigned char tda8275_init[]  = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
 506                                           0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
 507         unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
 508                                           0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
 509         struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0,
 510                               .buf=tda8275_init, .len = 14};
 511         if (priv->tda827x_ver != 0)
 512                 msg.buf = tda8275a_init;
 513
 514         tda8290_i2c_bridge(fe, 1);
 515         i2c_transfer(priv->i2c_props.adap, &msg, 1);
 516         tda8290_i2c_bridge(fe, 0);
 517 }
 518
 519 /*---------------------------------------------------------------------*/
 520
 521 static void tda829x_release(struct dvb_frontend *fe)
 522 {
 523         if (fe->ops.tuner_ops.release)
 524                 fe->ops.tuner_ops.release(fe);
 525
 526         kfree(fe->analog_demod_priv);
 527         fe->analog_demod_priv = NULL;
 528 }
 529
 530 static struct analog_tuner_ops tda8290_tuner_ops = {
 531         .set_tv_freq    = tda8290_set_freq,
 532         .set_radio_freq = tda8290_set_freq,
 533         .has_signal     = tda8290_has_signal,
 534         .standby        = tda8290_standby,
 535         .release        = tda829x_release,
 536 };
 537
 538 static struct analog_tuner_ops tda8295_tuner_ops = {
 539         .set_tv_freq    = tda8295_set_freq,
 540         .set_radio_freq = tda8295_set_freq,
 541         .has_signal     = tda8295_has_signal,
 542         .standby        = tda8295_standby,
 543         .release        = tda829x_release,
 544 };
 545
 546 int tda8290_attach(struct tuner *t)
 547 {
 548         struct tda8290_priv *priv = NULL;
 549         u8 data;
 550         int i, ret, tuners_found;
 551         u32 tuner_addrs;
 552         struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1};
 553
 554         priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
 555         if (priv == NULL)
 556                 return -ENOMEM;
 557         t->fe.analog_demod_priv = priv;
 558
 559         priv->i2c_props.addr     = t->i2c.addr;
 560         priv->i2c_props.adap     = t->i2c.adapter;
 561         priv->cfg.config         = &t->config;
 562         priv->cfg.tuner_callback = t->tuner_callback;
 563         priv->t = t;
 564
 565         tda8290_i2c_bridge(&t->fe, 1);
 566         /* probe for tuner chip */
 567         tuners_found = 0;
 568         tuner_addrs = 0;
 569         for (i=0x60; i<= 0x63; i++) {
 570                 msg.addr = i;
 571                 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 572                 if (ret == 1) {
 573                         tuners_found++;
 574                         tuner_addrs = (tuner_addrs << 8) + i;
 575                 }
 576         }
 577         /* if there is more than one tuner, we expect the right one is
 578            behind the bridge and we choose the highest address that doesn't
 579            give a response now
 580          */
 581         tda8290_i2c_bridge(&t->fe, 0);
 582         if(tuners_found > 1)
 583                 for (i = 0; i < tuners_found; i++) {
 584                         msg.addr = tuner_addrs  & 0xff;
 585                         ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 586                         if(ret == 1)
 587                                 tuner_addrs = tuner_addrs >> 8;
 588                         else
 589                                 break;
 590                 }
 591         if (tuner_addrs == 0) {
 592                 tuner_addrs = 0x61;
 593                 tuner_info("could not clearly identify tuner address, defaulting to %x\n",
 594                              tuner_addrs);
 595         } else {
 596                 tuner_addrs = tuner_addrs & 0xff;
 597                 tuner_info("setting tuner address to %x\n", tuner_addrs);
 598         }
 599         priv->tda827x_addr = tuner_addrs;
 600         msg.addr = tuner_addrs;
 601
 602         tda8290_i2c_bridge(&t->fe, 1);
 603
 604         ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 605         if( ret != 1)
 606                 tuner_warn("TDA827x access failed!\n");
 607
 608         if ((data & 0x3c) == 0) {
 609                 strlcpy(t->i2c.name, "tda8290+75", sizeof(t->i2c.name));
 610                 priv->tda827x_ver = 0;
 611         } else {
 612                 strlcpy(t->i2c.name, "tda8290+75a", sizeof(t->i2c.name));
 613                 priv->tda827x_ver = 2;
 614         }
 615         tda827x_attach(&t->fe, priv->tda827x_addr,
 616                        priv->i2c_props.adap, &priv->cfg);
 617
 618         /* FIXME: tda827x module doesn't probe the tuner until
 619          * tda827x_initial_sleep is called
 620          */
 621         if (t->fe.ops.tuner_ops.sleep)
 622                 t->fe.ops.tuner_ops.sleep(&t->fe);
 623
 624         t->fe.ops.analog_demod_ops = &tda8290_tuner_ops;
 625
 626         tuner_info("type set to %s\n", t->i2c.name);
 627
 628         priv->cfg.tda827x_lpsel = 0;
 629         t->mode = V4L2_TUNER_ANALOG_TV;
 630
 631         tda8290_init_tuner(&t->fe);
 632         tda8290_init_if(&t->fe);
 633         return 0;
 634 }
 635 EXPORT_SYMBOL_GPL(tda8290_attach);
 636
 637 int tda8295_attach(struct tuner *t)
 638 {
 639         struct tda8290_priv *priv = NULL;
 640         u8 data;
 641         int i, ret, tuners_found;
 642         u32 tuner_addrs;
 643         struct i2c_msg msg = { .flags = I2C_M_RD, .buf = &data, .len = 1 };
 644
 645         priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL);
 646         if (priv == NULL)
 647                 return -ENOMEM;
 648         t->fe.analog_demod_priv = priv;
 649
 650         priv->i2c_props.addr     = t->i2c.addr;
 651         priv->i2c_props.adap     = t->i2c.adapter;
 652         priv->t = t;
 653
 654         tda8295_i2c_bridge(&t->fe, 1);
 655         /* probe for tuner chip */
 656         tuners_found = 0;
 657         tuner_addrs = 0;
 658         for (i = 0x60; i <= 0x63; i++) {
 659                 msg.addr = i;
 660                 ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 661                 if (ret == 1) {
 662                         tuners_found++;
 663                         tuner_addrs = (tuner_addrs << 8) + i;
 664                 }
 665         }
 666         /* if there is more than one tuner, we expect the right one is
 667            behind the bridge and we choose the highest address that doesn't
 668            give a response now
 669          */
 670         tda8295_i2c_bridge(&t->fe, 0);
 671         if (tuners_found > 1)
 672                 for (i = 0; i < tuners_found; i++) {
 673                         msg.addr = tuner_addrs  & 0xff;
 674                         ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 675                         if (ret == 1)
 676                                 tuner_addrs = tuner_addrs >> 8;
 677                         else
 678                                 break;
 679                 }
 680         if (tuner_addrs == 0) {
 681                 tuner_addrs = 0x60;
 682                 tuner_info("could not clearly identify tuner address, "
 683                            "defaulting to %x\n", tuner_addrs);
 684         } else {
 685                 tuner_addrs = tuner_addrs & 0xff;
 686                 tuner_info("setting tuner address to %x\n", tuner_addrs);
 687         }
 688         priv->tda827x_addr = tuner_addrs;
 689         msg.addr = tuner_addrs;
 690
 691         tda8295_i2c_bridge(&t->fe, 1);
 692         ret = i2c_transfer(priv->i2c_props.adap, &msg, 1);
 693         tda8295_i2c_bridge(&t->fe, 0);
 694         if (ret != 1)
 695                 tuner_warn("TDA827x access failed!\n");
 696         if ((data & 0x3c) == 0) {
 697                 strlcpy(t->i2c.name, "tda8295+18271", sizeof(t->i2c.name));
 698                 tda18271_attach(&t->fe, priv->tda827x_addr,
 699                                 priv->i2c_props.adap);
 700                 priv->tda827x_ver = 4;
 701         } else {
 702                 strlcpy(t->i2c.name, "tda8295+75a", sizeof(t->i2c.name));
 703                 tda827x_attach(&t->fe, priv->tda827x_addr,
 704                                priv->i2c_props.adap, &priv->cfg);
 705
 706                 /* FIXME: tda827x module doesn't probe the tuner until
 707                  * tda827x_initial_sleep is called
 708                  */
 709                 if (t->fe.ops.tuner_ops.sleep)
 710                         t->fe.ops.tuner_ops.sleep(&t->fe);
 711                 priv->tda827x_ver = 2;
 712         }
 713         priv->tda827x_ver |= 1; /* signifies 8295 vs 8290 */
 714         tuner_info("type set to %s\n", t->i2c.name);
 715
 716         t->fe.ops.analog_demod_ops = &tda8295_tuner_ops;
 717
 718         priv->cfg.tda827x_lpsel = 0;
 719         t->mode = V4L2_TUNER_ANALOG_TV;
 720
 721         tda8295_init_if(&t->fe);
 722         return 0;
 723 }
 724 EXPORT_SYMBOL_GPL(tda8295_attach);
 725
 726 int tda8290_probe(struct tuner *t)
 727 {
 728         struct tuner_i2c_props i2c_props = {
 729                 .adap = t->i2c.adapter,
 730                 .addr = t->i2c.addr
 731         };
 732
 733         unsigned char soft_reset[]   = { 0x00, 0x00 };
 734         unsigned char easy_mode_b[]  = { 0x01, 0x02 };
 735         unsigned char easy_mode_g[]  = { 0x01, 0x04 };
 736         unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
 737         unsigned char addr_dto_lsb = 0x07;
 738         unsigned char data;
 739
 740         tuner_i2c_xfer_send(&i2c_props, easy_mode_b, 2);
 741         tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
 742         tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
 743         tuner_i2c_xfer_recv(&i2c_props, &data, 1);
 744         if (data == 0) {
 745                 tuner_i2c_xfer_send(&i2c_props, easy_mode_g, 2);
 746                 tuner_i2c_xfer_send(&i2c_props, soft_reset, 2);
 747                 tuner_i2c_xfer_send(&i2c_props, &addr_dto_lsb, 1);
 748                 tuner_i2c_xfer_recv(&i2c_props, &data, 1);
 749                 if (data == 0x7b) {
 750                         return 0;
 751                 }
 752         }
 753         tuner_i2c_xfer_send(&i2c_props, restore_9886, 3);
 754         return -1;
 755 }
 756 EXPORT_SYMBOL_GPL(tda8290_probe);
 757
 758 MODULE_DESCRIPTION("Philips TDA8290 + TDA8275 / TDA8275a tuner driver");
 759 MODULE_AUTHOR("Gerd Knorr, Hartmut Hackmann, Michael Krufky");
 760 MODULE_LICENSE("GPL");
 761
 762 /*
 763  * Overrides for Emacs so that we follow Linus's tabbing style.
 764  * ---------------------------------------------------------------------------
 765  * Local variables:
 766  * c-basic-offset: 8
 767  * End:
 768  */