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