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