drivers/media/usb/cx231xx/cx231xx-dvb.c

   1 /*
   2  DVB device driver for cx231xx
   3
   4  Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   5                 Based on em28xx driver
   6
   7  This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include "cx231xx.h"
  23 #include <linux/kernel.h>
  24 #include <linux/slab.h>
  25
  26 #include <media/v4l2-common.h>
  27 #include <media/videobuf-vmalloc.h>
  28 #include <media/tuner.h>
  29
  30 #include "xc5000.h"
  31 #include "s5h1432.h"
  32 #include "tda18271.h"
  33 #include "s5h1411.h"
  34 #include "lgdt3305.h"
  35 #include "si2165.h"
  36 #include "si2168.h"
  37 #include "mb86a20s.h"
  38 #include "si2157.h"
  39 #include "lgdt3306a.h"
  40 #include "r820t.h"
  41 #include "mn88473.h"
  42
  43 MODULE_DESCRIPTION("driver for cx231xx based DVB cards");
  44 MODULE_AUTHOR("Srinivasa Deevi <srinivasa.deevi@conexant.com>");
  45 MODULE_LICENSE("GPL");
  46
  47 static unsigned int debug;
  48 module_param(debug, int, 0644);
  49 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  50
  51 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  52
  53 #define CX231XX_DVB_NUM_BUFS 5
  54 #define CX231XX_DVB_MAX_PACKETSIZE 564
  55 #define CX231XX_DVB_MAX_PACKETS 64
  56
  57 struct cx231xx_dvb {
  58         struct dvb_frontend *frontend;
  59
  60         /* feed count management */
  61         struct mutex lock;
  62         int nfeeds;
  63
  64         /* general boilerplate stuff */
  65         struct dvb_adapter adapter;
  66         struct dvb_demux demux;
  67         struct dmxdev dmxdev;
  68         struct dmx_frontend fe_hw;
  69         struct dmx_frontend fe_mem;
  70         struct dvb_net net;
  71         struct i2c_client *i2c_client_demod;
  72         struct i2c_client *i2c_client_tuner;
  73 };
  74
  75 static struct s5h1432_config dvico_s5h1432_config = {
  76         .output_mode   = S5H1432_SERIAL_OUTPUT,
  77         .gpio          = S5H1432_GPIO_ON,
  78         .qam_if        = S5H1432_IF_4000,
  79         .vsb_if        = S5H1432_IF_4000,
  80         .inversion     = S5H1432_INVERSION_OFF,
  81         .status_mode   = S5H1432_DEMODLOCKING,
  82         .mpeg_timing   = S5H1432_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
  83 };
  84
  85 static struct tda18271_std_map cnxt_rde253s_tda18271_std_map = {
  86         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  87                       .if_lvl = 1, .rfagc_top = 0x37, },
  88         .dvbt_7   = { .if_freq = 4000, .agc_mode = 3, .std = 5,
  89                       .if_lvl = 1, .rfagc_top = 0x37, },
  90         .dvbt_8   = { .if_freq = 4000, .agc_mode = 3, .std = 6,
  91                       .if_lvl = 1, .rfagc_top = 0x37, },
  92 };
  93
  94 static struct tda18271_std_map mb86a20s_tda18271_config = {
  95         .dvbt_6   = { .if_freq = 4000, .agc_mode = 3, .std = 4,
  96                       .if_lvl = 0, .rfagc_top = 0x37, },
  97 };
  98
  99 static struct tda18271_config cnxt_rde253s_tunerconfig = {
 100         .std_map = &cnxt_rde253s_tda18271_std_map,
 101         .gate    = TDA18271_GATE_ANALOG,
 102 };
 103
 104 static struct s5h1411_config tda18271_s5h1411_config = {
 105         .output_mode   = S5H1411_SERIAL_OUTPUT,
 106         .gpio          = S5H1411_GPIO_OFF,
 107         .vsb_if        = S5H1411_IF_3250,
 108         .qam_if        = S5H1411_IF_4000,
 109         .inversion     = S5H1411_INVERSION_ON,
 110         .status_mode   = S5H1411_DEMODLOCKING,
 111         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 112 };
 113 static struct s5h1411_config xc5000_s5h1411_config = {
 114         .output_mode   = S5H1411_SERIAL_OUTPUT,
 115         .gpio          = S5H1411_GPIO_OFF,
 116         .vsb_if        = S5H1411_IF_3250,
 117         .qam_if        = S5H1411_IF_3250,
 118         .inversion     = S5H1411_INVERSION_OFF,
 119         .status_mode   = S5H1411_DEMODLOCKING,
 120         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 121 };
 122
 123 static struct lgdt3305_config hcw_lgdt3305_config = {
 124         .i2c_addr           = 0x0e,
 125         .mpeg_mode          = LGDT3305_MPEG_SERIAL,
 126         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 127         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 128         .deny_i2c_rptr      = 1,
 129         .spectral_inversion = 1,
 130         .qam_if_khz         = 4000,
 131         .vsb_if_khz         = 3250,
 132 };
 133
 134 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 135         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 4,
 136                       .if_lvl = 1, .rfagc_top = 0x58, },
 137         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 5,
 138                       .if_lvl = 1, .rfagc_top = 0x58, },
 139 };
 140
 141 static struct tda18271_config hcw_tda18271_config = {
 142         .std_map = &hauppauge_tda18271_std_map,
 143         .gate    = TDA18271_GATE_DIGITAL,
 144 };
 145
 146 static const struct mb86a20s_config pv_mb86a20s_config = {
 147         .demod_address = 0x10,
 148         .is_serial = true,
 149 };
 150
 151 static struct tda18271_config pv_tda18271_config = {
 152         .std_map = &mb86a20s_tda18271_config,
 153         .gate    = TDA18271_GATE_DIGITAL,
 154         .small_i2c = TDA18271_03_BYTE_CHUNK_INIT,
 155 };
 156
 157 static struct lgdt3306a_config hauppauge_955q_lgdt3306a_config = {
 158         .i2c_addr           = 0x59,
 159         .qam_if_khz         = 4000,
 160         .vsb_if_khz         = 3250,
 161         .deny_i2c_rptr      = 1,
 162         .spectral_inversion = 1,
 163         .mpeg_mode          = LGDT3306A_MPEG_SERIAL,
 164         .tpclk_edge         = LGDT3306A_TPCLK_RISING_EDGE,
 165         .tpvalid_polarity   = LGDT3306A_TP_VALID_HIGH,
 166         .xtalMHz            = 25,
 167 };
 168
 169 static struct r820t_config astrometa_t2hybrid_r820t_config = {
 170         .i2c_addr               = 0x3a, /* 0x74 >> 1 */
 171         .xtal                   = 16000000,
 172         .rafael_chip            = CHIP_R828D,
 173         .max_i2c_msg_len        = 2,
 174 };
 175
 176 static inline void print_err_status(struct cx231xx *dev, int packet, int status)
 177 {
 178         char *errmsg = "Unknown";
 179
 180         switch (status) {
 181         case -ENOENT:
 182                 errmsg = "unlinked synchronuously";
 183                 break;
 184         case -ECONNRESET:
 185                 errmsg = "unlinked asynchronuously";
 186                 break;
 187         case -ENOSR:
 188                 errmsg = "Buffer error (overrun)";
 189                 break;
 190         case -EPIPE:
 191                 errmsg = "Stalled (device not responding)";
 192                 break;
 193         case -EOVERFLOW:
 194                 errmsg = "Babble (bad cable?)";
 195                 break;
 196         case -EPROTO:
 197                 errmsg = "Bit-stuff error (bad cable?)";
 198                 break;
 199         case -EILSEQ:
 200                 errmsg = "CRC/Timeout (could be anything)";
 201                 break;
 202         case -ETIME:
 203                 errmsg = "Device does not respond";
 204                 break;
 205         }
 206         if (packet < 0) {
 207                 dev_dbg(dev->dev,
 208                         "URB status %d [%s].\n", status, errmsg);
 209         } else {
 210                 dev_dbg(dev->dev,
 211                         "URB packet %d, status %d [%s].\n",
 212                         packet, status, errmsg);
 213         }
 214 }
 215
 216 static inline int dvb_isoc_copy(struct cx231xx *dev, struct urb *urb)
 217 {
 218         int i;
 219
 220         if (!dev)
 221                 return 0;
 222
 223         if (dev->state & DEV_DISCONNECTED)
 224                 return 0;
 225
 226         if (urb->status < 0) {
 227                 print_err_status(dev, -1, urb->status);
 228                 if (urb->status == -ENOENT)
 229                         return 0;
 230         }
 231
 232         for (i = 0; i < urb->number_of_packets; i++) {
 233                 int status = urb->iso_frame_desc[i].status;
 234
 235                 if (status < 0) {
 236                         print_err_status(dev, i, status);
 237                         if (urb->iso_frame_desc[i].status != -EPROTO)
 238                                 continue;
 239                 }
 240
 241                 dvb_dmx_swfilter(&dev->dvb->demux,
 242                                  urb->transfer_buffer +
 243                                 urb->iso_frame_desc[i].offset,
 244                                 urb->iso_frame_desc[i].actual_length);
 245         }
 246
 247         return 0;
 248 }
 249
 250 static inline int dvb_bulk_copy(struct cx231xx *dev, struct urb *urb)
 251 {
 252         if (!dev)
 253                 return 0;
 254
 255         if (dev->state & DEV_DISCONNECTED)
 256                 return 0;
 257
 258         if (urb->status < 0) {
 259                 print_err_status(dev, -1, urb->status);
 260                 if (urb->status == -ENOENT)
 261                         return 0;
 262         }
 263
 264         /* Feed the transport payload into the kernel demux */
 265         dvb_dmx_swfilter(&dev->dvb->demux,
 266                 urb->transfer_buffer, urb->actual_length);
 267
 268         return 0;
 269 }
 270
 271 static int start_streaming(struct cx231xx_dvb *dvb)
 272 {
 273         int rc;
 274         struct cx231xx *dev = dvb->adapter.priv;
 275
 276         if (dev->USE_ISO) {
 277                 dev_dbg(dev->dev, "DVB transfer mode is ISO.\n");
 278                 cx231xx_set_alt_setting(dev, INDEX_TS1, 4);
 279                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 280                 if (rc < 0)
 281                         return rc;
 282                 dev->mode_tv = 1;
 283                 return cx231xx_init_isoc(dev, CX231XX_DVB_MAX_PACKETS,
 284                                         CX231XX_DVB_NUM_BUFS,
 285                                         dev->ts1_mode.max_pkt_size,
 286                                         dvb_isoc_copy);
 287         } else {
 288                 dev_dbg(dev->dev, "DVB transfer mode is BULK.\n");
 289                 cx231xx_set_alt_setting(dev, INDEX_TS1, 0);
 290                 rc = cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 291                 if (rc < 0)
 292                         return rc;
 293                 dev->mode_tv = 1;
 294                 return cx231xx_init_bulk(dev, CX231XX_DVB_MAX_PACKETS,
 295                                         CX231XX_DVB_NUM_BUFS,
 296                                         dev->ts1_mode.max_pkt_size,
 297                                         dvb_bulk_copy);
 298         }
 299
 300 }
 301
 302 static int stop_streaming(struct cx231xx_dvb *dvb)
 303 {
 304         struct cx231xx *dev = dvb->adapter.priv;
 305
 306         if (dev->USE_ISO)
 307                 cx231xx_uninit_isoc(dev);
 308         else
 309                 cx231xx_uninit_bulk(dev);
 310
 311         cx231xx_set_mode(dev, CX231XX_SUSPEND);
 312
 313         return 0;
 314 }
 315
 316 static int start_feed(struct dvb_demux_feed *feed)
 317 {
 318         struct dvb_demux *demux = feed->demux;
 319         struct cx231xx_dvb *dvb = demux->priv;
 320         int rc, ret;
 321
 322         if (!demux->dmx.frontend)
 323                 return -EINVAL;
 324
 325         mutex_lock(&dvb->lock);
 326         dvb->nfeeds++;
 327         rc = dvb->nfeeds;
 328
 329         if (dvb->nfeeds == 1) {
 330                 ret = start_streaming(dvb);
 331                 if (ret < 0)
 332                         rc = ret;
 333         }
 334
 335         mutex_unlock(&dvb->lock);
 336         return rc;
 337 }
 338
 339 static int stop_feed(struct dvb_demux_feed *feed)
 340 {
 341         struct dvb_demux *demux = feed->demux;
 342         struct cx231xx_dvb *dvb = demux->priv;
 343         int err = 0;
 344
 345         mutex_lock(&dvb->lock);
 346         dvb->nfeeds--;
 347
 348         if (0 == dvb->nfeeds)
 349                 err = stop_streaming(dvb);
 350
 351         mutex_unlock(&dvb->lock);
 352         return err;
 353 }
 354
 355 /* ------------------------------------------------------------------ */
 356 static int cx231xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 357 {
 358         struct cx231xx *dev = fe->dvb->priv;
 359
 360         if (acquire)
 361                 return cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 362         else
 363                 return cx231xx_set_mode(dev, CX231XX_SUSPEND);
 364 }
 365
 366 /* ------------------------------------------------------------------ */
 367
 368 static struct xc5000_config cnxt_rde250_tunerconfig = {
 369         .i2c_address = 0x61,
 370         .if_khz = 4000,
 371 };
 372 static struct xc5000_config cnxt_rdu250_tunerconfig = {
 373         .i2c_address = 0x61,
 374         .if_khz = 3250,
 375 };
 376
 377 /* ------------------------------------------------------------------ */
 378 #if 0
 379 static int attach_xc5000(u8 addr, struct cx231xx *dev)
 380 {
 381
 382         struct dvb_frontend *fe;
 383         struct xc5000_config cfg;
 384
 385         memset(&cfg, 0, sizeof(cfg));
 386         cfg.i2c_adap = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 387         cfg.i2c_addr = addr;
 388
 389         if (!dev->dvb->frontend) {
 390                 dev_err(dev->dev, "%s/2: dvb frontend not attached. Can't attach xc5000\n",
 391                         dev->name);
 392                 return -EINVAL;
 393         }
 394
 395         fe = dvb_attach(xc5000_attach, dev->dvb->frontend, &cfg);
 396         if (!fe) {
 397                 dev_err(dev->dev, "%s/2: xc5000 attach failed\n", dev->name);
 398                 dvb_frontend_detach(dev->dvb->frontend);
 399                 dev->dvb->frontend = NULL;
 400                 return -EINVAL;
 401         }
 402
 403         dev_info(dev->dev, "%s/2: xc5000 attached\n", dev->name);
 404
 405         return 0;
 406 }
 407 #endif
 408
 409 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq)
 410 {
 411         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 412
 413                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 414
 415                 if (dops->set_analog_params != NULL) {
 416                         struct analog_parameters params;
 417
 418                         params.frequency = freq;
 419                         params.std = dev->norm;
 420                         params.mode = 0;        /* 0- Air; 1 - cable */
 421                         /*params.audmode = ;       */
 422
 423                         /* Set the analog parameters to set the frequency */
 424                         dops->set_analog_params(dev->dvb->frontend, &params);
 425                 }
 426
 427         }
 428
 429         return 0;
 430 }
 431
 432 int cx231xx_reset_analog_tuner(struct cx231xx *dev)
 433 {
 434         int status = 0;
 435
 436         if ((dev->dvb != NULL) && (dev->dvb->frontend != NULL)) {
 437
 438                 struct dvb_tuner_ops *dops = &dev->dvb->frontend->ops.tuner_ops;
 439
 440                 if (dops->init != NULL && !dev->xc_fw_load_done) {
 441
 442                         dev_dbg(dev->dev,
 443                                 "Reloading firmware for XC5000\n");
 444                         status = dops->init(dev->dvb->frontend);
 445                         if (status == 0) {
 446                                 dev->xc_fw_load_done = 1;
 447                                 dev_dbg(dev->dev,
 448                                         "XC5000 firmware download completed\n");
 449                         } else {
 450                                 dev->xc_fw_load_done = 0;
 451                                 dev_dbg(dev->dev,
 452                                         "XC5000 firmware download failed !!!\n");
 453                         }
 454                 }
 455
 456         }
 457
 458         return status;
 459 }
 460
 461 /* ------------------------------------------------------------------ */
 462
 463 static int register_dvb(struct cx231xx_dvb *dvb,
 464                         struct module *module,
 465                         struct cx231xx *dev, struct device *device)
 466 {
 467         int result;
 468
 469         mutex_init(&dvb->lock);
 470
 471
 472         /* register adapter */
 473         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 474                                       adapter_nr);
 475         if (result < 0) {
 476                 dev_warn(dev->dev,
 477                        "%s: dvb_register_adapter failed (errno = %d)\n",
 478                        dev->name, result);
 479                 goto fail_adapter;
 480         }
 481         dvb_register_media_controller(&dvb->adapter, dev->media_dev);
 482
 483         /* Ensure all frontends negotiate bus access */
 484         dvb->frontend->ops.ts_bus_ctrl = cx231xx_dvb_bus_ctrl;
 485
 486         dvb->adapter.priv = dev;
 487
 488         /* register frontend */
 489         result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 490         if (result < 0) {
 491                 dev_warn(dev->dev,
 492                        "%s: dvb_register_frontend failed (errno = %d)\n",
 493                        dev->name, result);
 494                 goto fail_frontend;
 495         }
 496
 497         /* register demux stuff */
 498         dvb->demux.dmx.capabilities =
 499             DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 500             DMX_MEMORY_BASED_FILTERING;
 501         dvb->demux.priv = dvb;
 502         dvb->demux.filternum = 256;
 503         dvb->demux.feednum = 256;
 504         dvb->demux.start_feed = start_feed;
 505         dvb->demux.stop_feed = stop_feed;
 506
 507         result = dvb_dmx_init(&dvb->demux);
 508         if (result < 0) {
 509                 dev_warn(dev->dev,
 510                          "%s: dvb_dmx_init failed (errno = %d)\n",
 511                        dev->name, result);
 512                 goto fail_dmx;
 513         }
 514
 515         dvb->dmxdev.filternum = 256;
 516         dvb->dmxdev.demux = &dvb->demux.dmx;
 517         dvb->dmxdev.capabilities = 0;
 518         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 519         if (result < 0) {
 520                 dev_warn(dev->dev,
 521                          "%s: dvb_dmxdev_init failed (errno = %d)\n",
 522                          dev->name, result);
 523                 goto fail_dmxdev;
 524         }
 525
 526         dvb->fe_hw.source = DMX_FRONTEND_0;
 527         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 528         if (result < 0) {
 529                 dev_warn(dev->dev,
 530                        "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 531                        dev->name, result);
 532                 goto fail_fe_hw;
 533         }
 534
 535         dvb->fe_mem.source = DMX_MEMORY_FE;
 536         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 537         if (result < 0) {
 538                 dev_warn(dev->dev,
 539                          "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 540                          dev->name, result);
 541                 goto fail_fe_mem;
 542         }
 543
 544         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 545         if (result < 0) {
 546                 dev_warn(dev->dev,
 547                          "%s: connect_frontend failed (errno = %d)\n",
 548                          dev->name, result);
 549                 goto fail_fe_conn;
 550         }
 551
 552         /* register network adapter */
 553         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 554         result = dvb_create_media_graph(&dvb->adapter,
 555                                         dev->tuner_type == TUNER_ABSENT);
 556         if (result < 0)
 557                 goto fail_create_graph;
 558
 559         return 0;
 560
 561 fail_create_graph:
 562         dvb_net_release(&dvb->net);
 563 fail_fe_conn:
 564         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 565 fail_fe_mem:
 566         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 567 fail_fe_hw:
 568         dvb_dmxdev_release(&dvb->dmxdev);
 569 fail_dmxdev:
 570         dvb_dmx_release(&dvb->demux);
 571 fail_dmx:
 572         dvb_unregister_frontend(dvb->frontend);
 573 fail_frontend:
 574         dvb_frontend_detach(dvb->frontend);
 575         dvb_unregister_adapter(&dvb->adapter);
 576 fail_adapter:
 577         return result;
 578 }
 579
 580 static void unregister_dvb(struct cx231xx_dvb *dvb)
 581 {
 582         struct i2c_client *client;
 583         dvb_net_release(&dvb->net);
 584         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 585         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 586         dvb_dmxdev_release(&dvb->dmxdev);
 587         dvb_dmx_release(&dvb->demux);
 588         dvb_unregister_frontend(dvb->frontend);
 589         dvb_frontend_detach(dvb->frontend);
 590         dvb_unregister_adapter(&dvb->adapter);
 591         /* remove I2C tuner */
 592         client = dvb->i2c_client_tuner;
 593         if (client) {
 594                 module_put(client->dev.driver->owner);
 595                 i2c_unregister_device(client);
 596         }
 597         /* remove I2C demod */
 598         client = dvb->i2c_client_demod;
 599         if (client) {
 600                 module_put(client->dev.driver->owner);
 601                 i2c_unregister_device(client);
 602         }
 603 }
 604
 605 static int dvb_init(struct cx231xx *dev)
 606 {
 607         int result = 0;
 608         struct cx231xx_dvb *dvb;
 609         struct i2c_adapter *tuner_i2c;
 610         struct i2c_adapter *demod_i2c;
 611
 612         if (!dev->board.has_dvb) {
 613                 /* This device does not support the extension */
 614                 return 0;
 615         }
 616
 617         dvb = kzalloc(sizeof(struct cx231xx_dvb), GFP_KERNEL);
 618
 619         if (dvb == NULL) {
 620                 dev_info(dev->dev,
 621                          "cx231xx_dvb: memory allocation failed\n");
 622                 return -ENOMEM;
 623         }
 624         dev->dvb = dvb;
 625         dev->cx231xx_set_analog_freq = cx231xx_set_analog_freq;
 626         dev->cx231xx_reset_analog_tuner = cx231xx_reset_analog_tuner;
 627
 628         tuner_i2c = cx231xx_get_i2c_adap(dev, dev->board.tuner_i2c_master);
 629         demod_i2c = cx231xx_get_i2c_adap(dev, dev->board.demod_i2c_master);
 630         mutex_lock(&dev->lock);
 631         cx231xx_set_mode(dev, CX231XX_DIGITAL_MODE);
 632         cx231xx_demod_reset(dev);
 633         /* init frontend */
 634         switch (dev->model) {
 635         case CX231XX_BOARD_CNXT_CARRAERA:
 636         case CX231XX_BOARD_CNXT_RDE_250:
 637
 638                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 639                                         &dvico_s5h1432_config,
 640                                         demod_i2c);
 641
 642                 if (dev->dvb->frontend == NULL) {
 643                         dev_err(dev->dev,
 644                                 "Failed to attach s5h1432 front end\n");
 645                         result = -EINVAL;
 646                         goto out_free;
 647                 }
 648
 649                 /* define general-purpose callback pointer */
 650                 dvb->frontend->callback = cx231xx_tuner_callback;
 651
 652                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 653                                tuner_i2c,
 654                                &cnxt_rde250_tunerconfig)) {
 655                         result = -EINVAL;
 656                         goto out_free;
 657                 }
 658
 659                 break;
 660         case CX231XX_BOARD_CNXT_SHELBY:
 661         case CX231XX_BOARD_CNXT_RDU_250:
 662
 663                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 664                                                &xc5000_s5h1411_config,
 665                                                demod_i2c);
 666
 667                 if (dev->dvb->frontend == NULL) {
 668                         dev_err(dev->dev,
 669                                 "Failed to attach s5h1411 front end\n");
 670                         result = -EINVAL;
 671                         goto out_free;
 672                 }
 673
 674                 /* define general-purpose callback pointer */
 675                 dvb->frontend->callback = cx231xx_tuner_callback;
 676
 677                 if (!dvb_attach(xc5000_attach, dev->dvb->frontend,
 678                                tuner_i2c,
 679                                &cnxt_rdu250_tunerconfig)) {
 680                         result = -EINVAL;
 681                         goto out_free;
 682                 }
 683                 break;
 684         case CX231XX_BOARD_CNXT_RDE_253S:
 685
 686                 dev->dvb->frontend = dvb_attach(s5h1432_attach,
 687                                         &dvico_s5h1432_config,
 688                                         demod_i2c);
 689
 690                 if (dev->dvb->frontend == NULL) {
 691                         dev_err(dev->dev,
 692                                 "Failed to attach s5h1432 front end\n");
 693                         result = -EINVAL;
 694                         goto out_free;
 695                 }
 696
 697                 /* define general-purpose callback pointer */
 698                 dvb->frontend->callback = cx231xx_tuner_callback;
 699
 700                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 701                                0x60, tuner_i2c,
 702                                &cnxt_rde253s_tunerconfig)) {
 703                         result = -EINVAL;
 704                         goto out_free;
 705                 }
 706                 break;
 707         case CX231XX_BOARD_CNXT_RDU_253S:
 708         case CX231XX_BOARD_KWORLD_UB445_USB_HYBRID:
 709
 710                 dev->dvb->frontend = dvb_attach(s5h1411_attach,
 711                                                &tda18271_s5h1411_config,
 712                                                demod_i2c);
 713
 714                 if (dev->dvb->frontend == NULL) {
 715                         dev_err(dev->dev,
 716                                 "Failed to attach s5h1411 front end\n");
 717                         result = -EINVAL;
 718                         goto out_free;
 719                 }
 720
 721                 /* define general-purpose callback pointer */
 722                 dvb->frontend->callback = cx231xx_tuner_callback;
 723
 724                 if (!dvb_attach(tda18271_attach, dev->dvb->frontend,
 725                                0x60, tuner_i2c,
 726                                &cnxt_rde253s_tunerconfig)) {
 727                         result = -EINVAL;
 728                         goto out_free;
 729                 }
 730                 break;
 731         case CX231XX_BOARD_HAUPPAUGE_EXETER:
 732
 733                 dev_info(dev->dev,
 734                          "%s: looking for tuner / demod on i2c bus: %d\n",
 735                        __func__, i2c_adapter_id(tuner_i2c));
 736
 737                 dev->dvb->frontend = dvb_attach(lgdt3305_attach,
 738                                                 &hcw_lgdt3305_config,
 739                                                 demod_i2c);
 740
 741                 if (dev->dvb->frontend == NULL) {
 742                         dev_err(dev->dev,
 743                                 "Failed to attach LG3305 front end\n");
 744                         result = -EINVAL;
 745                         goto out_free;
 746                 }
 747
 748                 /* define general-purpose callback pointer */
 749                 dvb->frontend->callback = cx231xx_tuner_callback;
 750
 751                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 752                            0x60, tuner_i2c,
 753                            &hcw_tda18271_config);
 754                 break;
 755
 756         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx:
 757         {
 758                 struct i2c_client *client;
 759                 struct i2c_board_info info;
 760                 struct si2165_platform_data si2165_pdata;
 761
 762                 /* attach demod */
 763                 memset(&si2165_pdata, 0, sizeof(si2165_pdata));
 764                 si2165_pdata.fe = &dev->dvb->frontend;
 765                 si2165_pdata.chip_mode = SI2165_MODE_PLL_XTAL,
 766                 si2165_pdata.ref_freq_Hz = 16000000,
 767
 768                 memset(&info, 0, sizeof(struct i2c_board_info));
 769                 strlcpy(info.type, "si2165", I2C_NAME_SIZE);
 770                 info.addr = 0x64;
 771                 info.platform_data = &si2165_pdata;
 772                 request_module(info.type);
 773                 client = i2c_new_device(demod_i2c, &info);
 774                 if (client == NULL || client->dev.driver == NULL || dev->dvb->frontend == NULL) {
 775                         dev_err(dev->dev,
 776                                 "Failed to attach SI2165 front end\n");
 777                         result = -EINVAL;
 778                         goto out_free;
 779                 }
 780
 781                 if (!try_module_get(client->dev.driver->owner)) {
 782                         i2c_unregister_device(client);
 783                         result = -ENODEV;
 784                         goto out_free;
 785                 }
 786
 787                 dvb->i2c_client_demod = client;
 788
 789                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 790
 791                 /* define general-purpose callback pointer */
 792                 dvb->frontend->callback = cx231xx_tuner_callback;
 793
 794                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 795                         0x60,
 796                         tuner_i2c,
 797                         &hcw_tda18271_config);
 798
 799                 dev->cx231xx_reset_analog_tuner = NULL;
 800                 break;
 801         }
 802         case CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx:
 803         {
 804                 struct i2c_client *client;
 805                 struct i2c_board_info info;
 806                 struct si2165_platform_data si2165_pdata;
 807                 struct si2157_config si2157_config;
 808
 809                 /* attach demod */
 810                 memset(&si2165_pdata, 0, sizeof(si2165_pdata));
 811                 si2165_pdata.fe = &dev->dvb->frontend;
 812                 si2165_pdata.chip_mode = SI2165_MODE_PLL_EXT,
 813                 si2165_pdata.ref_freq_Hz = 24000000,
 814
 815                 memset(&info, 0, sizeof(struct i2c_board_info));
 816                 strlcpy(info.type, "si2165", I2C_NAME_SIZE);
 817                 info.addr = 0x64;
 818                 info.platform_data = &si2165_pdata;
 819                 request_module(info.type);
 820                 client = i2c_new_device(demod_i2c, &info);
 821                 if (client == NULL || client->dev.driver == NULL || dev->dvb->frontend == NULL) {
 822                         dev_err(dev->dev,
 823                                 "Failed to attach SI2165 front end\n");
 824                         result = -EINVAL;
 825                         goto out_free;
 826                 }
 827
 828                 if (!try_module_get(client->dev.driver->owner)) {
 829                         i2c_unregister_device(client);
 830                         result = -ENODEV;
 831                         goto out_free;
 832                 }
 833
 834                 dvb->i2c_client_demod = client;
 835
 836                 memset(&info, 0, sizeof(struct i2c_board_info));
 837
 838                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 839
 840                 /* define general-purpose callback pointer */
 841                 dvb->frontend->callback = cx231xx_tuner_callback;
 842
 843                 /* attach tuner */
 844                 memset(&si2157_config, 0, sizeof(si2157_config));
 845                 si2157_config.fe = dev->dvb->frontend;
 846 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 847                 si2157_config.mdev = dev->media_dev;
 848 #endif
 849                 si2157_config.if_port = 1;
 850                 si2157_config.inversion = true;
 851                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 852                 info.addr = 0x60;
 853                 info.platform_data = &si2157_config;
 854                 request_module("si2157");
 855
 856                 client = i2c_new_device(
 857                         tuner_i2c,
 858                         &info);
 859                 if (client == NULL || client->dev.driver == NULL) {
 860                         dvb_frontend_detach(dev->dvb->frontend);
 861                         result = -ENODEV;
 862                         goto out_free;
 863                 }
 864
 865                 if (!try_module_get(client->dev.driver->owner)) {
 866                         i2c_unregister_device(client);
 867                         dvb_frontend_detach(dev->dvb->frontend);
 868                         result = -ENODEV;
 869                         goto out_free;
 870                 }
 871
 872                 dev->cx231xx_reset_analog_tuner = NULL;
 873
 874                 dev->dvb->i2c_client_tuner = client;
 875                 break;
 876         }
 877         case CX231XX_BOARD_HAUPPAUGE_955Q:
 878         {
 879                 struct i2c_client *client;
 880                 struct i2c_board_info info;
 881                 struct si2157_config si2157_config;
 882
 883                 memset(&info, 0, sizeof(struct i2c_board_info));
 884
 885                 dev->dvb->frontend = dvb_attach(lgdt3306a_attach,
 886                         &hauppauge_955q_lgdt3306a_config,
 887                         demod_i2c
 888                         );
 889
 890                 if (dev->dvb->frontend == NULL) {
 891                         dev_err(dev->dev,
 892                                 "Failed to attach LGDT3306A frontend.\n");
 893                         result = -EINVAL;
 894                         goto out_free;
 895                 }
 896
 897                 dev->dvb->frontend->ops.i2c_gate_ctrl = NULL;
 898
 899                 /* define general-purpose callback pointer */
 900                 dvb->frontend->callback = cx231xx_tuner_callback;
 901
 902                 /* attach tuner */
 903                 memset(&si2157_config, 0, sizeof(si2157_config));
 904                 si2157_config.fe = dev->dvb->frontend;
 905 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 906                 si2157_config.mdev = dev->media_dev;
 907 #endif
 908                 si2157_config.if_port = 1;
 909                 si2157_config.inversion = true;
 910                 strlcpy(info.type, "si2157", I2C_NAME_SIZE);
 911                 info.addr = 0x60;
 912                 info.platform_data = &si2157_config;
 913                 request_module("si2157");
 914
 915                 client = i2c_new_device(
 916                         tuner_i2c,
 917                         &info);
 918                 if (client == NULL || client->dev.driver == NULL) {
 919                         dvb_frontend_detach(dev->dvb->frontend);
 920                         result = -ENODEV;
 921                         goto out_free;
 922                 }
 923
 924                 if (!try_module_get(client->dev.driver->owner)) {
 925                         i2c_unregister_device(client);
 926                         dvb_frontend_detach(dev->dvb->frontend);
 927                         result = -ENODEV;
 928                         goto out_free;
 929                 }
 930
 931                 dev->cx231xx_reset_analog_tuner = NULL;
 932
 933                 dev->dvb->i2c_client_tuner = client;
 934                 break;
 935         }
 936         case CX231XX_BOARD_PV_PLAYTV_USB_HYBRID:
 937         case CX231XX_BOARD_KWORLD_UB430_USB_HYBRID:
 938
 939                 dev_info(dev->dev,
 940                          "%s: looking for demod on i2c bus: %d\n",
 941                          __func__, i2c_adapter_id(tuner_i2c));
 942
 943                 dev->dvb->frontend = dvb_attach(mb86a20s_attach,
 944                                                 &pv_mb86a20s_config,
 945                                                 demod_i2c);
 946
 947                 if (dev->dvb->frontend == NULL) {
 948                         dev_err(dev->dev,
 949                                 "Failed to attach mb86a20s demod\n");
 950                         result = -EINVAL;
 951                         goto out_free;
 952                 }
 953
 954                 /* define general-purpose callback pointer */
 955                 dvb->frontend->callback = cx231xx_tuner_callback;
 956
 957                 dvb_attach(tda18271_attach, dev->dvb->frontend,
 958                            0x60, tuner_i2c,
 959                            &pv_tda18271_config);
 960                 break;
 961
 962         case CX231XX_BOARD_EVROMEDIA_FULL_HYBRID_FULLHD:
 963         {
 964                 struct si2157_config si2157_config = {};
 965                 struct si2168_config si2168_config = {};
 966                 struct i2c_board_info info = {};
 967                 struct i2c_client *client;
 968                 struct i2c_adapter *adapter;
 969
 970                 /* attach demodulator chip */
 971                 si2168_config.ts_mode = SI2168_TS_SERIAL; /* from *.inf file */
 972                 si2168_config.fe = &dev->dvb->frontend;
 973                 si2168_config.i2c_adapter = &adapter;
 974                 si2168_config.ts_clock_inv = true;
 975
 976                 strlcpy(info.type, "si2168", sizeof(info.type));
 977                 info.addr = dev->board.demod_addr;
 978                 info.platform_data = &si2168_config;
 979
 980                 request_module(info.type);
 981                 client = i2c_new_device(demod_i2c, &info);
 982
 983                 if (client == NULL || client->dev.driver == NULL) {
 984                         result = -ENODEV;
 985                         goto out_free;
 986                 }
 987
 988                 if (!try_module_get(client->dev.driver->owner)) {
 989                         i2c_unregister_device(client);
 990                         result = -ENODEV;
 991                         goto out_free;
 992                 }
 993
 994                 dvb->i2c_client_demod = client;
 995
 996                 /* attach tuner chip */
 997                 si2157_config.fe = dev->dvb->frontend;
 998 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
 999                 si2157_config.mdev = dev->media_dev;
1000 #endif
1001                 si2157_config.if_port = 1;
1002                 si2157_config.inversion = false;
1003
1004                 memset(&info, 0, sizeof(info));
1005                 strlcpy(info.type, "si2157", sizeof(info.type));
1006                 info.addr = dev->board.tuner_addr;
1007                 info.platform_data = &si2157_config;
1008
1009                 request_module(info.type);
1010                 client = i2c_new_device(tuner_i2c, &info);
1011
1012                 if (client == NULL || client->dev.driver == NULL) {
1013                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1014                         i2c_unregister_device(dvb->i2c_client_demod);
1015                         result = -ENODEV;
1016                         goto out_free;
1017                 }
1018
1019                 if (!try_module_get(client->dev.driver->owner)) {
1020                         i2c_unregister_device(client);
1021                         module_put(dvb->i2c_client_demod->dev.driver->owner);
1022                         i2c_unregister_device(dvb->i2c_client_demod);
1023                         result = -ENODEV;
1024                         goto out_free;
1025                 }
1026
1027                 dev->cx231xx_reset_analog_tuner = NULL;
1028                 dev->dvb->i2c_client_tuner = client;
1029                 break;
1030         }
1031         case CX231XX_BOARD_ASTROMETA_T2HYBRID:
1032         {
1033                 struct i2c_client *client;
1034                 struct i2c_board_info info = {};
1035                 struct mn88473_config mn88473_config = {};
1036
1037                 /* attach demodulator chip */
1038                 mn88473_config.i2c_wr_max = 16;
1039                 mn88473_config.xtal = 25000000;
1040                 mn88473_config.fe = &dev->dvb->frontend;
1041
1042                 strlcpy(info.type, "mn88473", sizeof(info.type));
1043                 info.addr = dev->board.demod_addr;
1044                 info.platform_data = &mn88473_config;
1045
1046                 request_module(info.type);
1047                 client = i2c_new_device(demod_i2c, &info);
1048
1049                 if (client == NULL || client->dev.driver == NULL) {
1050                         result = -ENODEV;
1051                         goto out_free;
1052                 }
1053
1054                 if (!try_module_get(client->dev.driver->owner)) {
1055                         i2c_unregister_device(client);
1056                         result = -ENODEV;
1057                         goto out_free;
1058                 }
1059
1060                 dvb->i2c_client_demod = client;
1061
1062                 /* define general-purpose callback pointer */
1063                 dvb->frontend->callback = cx231xx_tuner_callback;
1064
1065                 /* attach tuner chip */
1066                 dvb_attach(r820t_attach, dev->dvb->frontend,
1067                            tuner_i2c,
1068                            &astrometa_t2hybrid_r820t_config);
1069                 break;
1070         }
1071         default:
1072                 dev_err(dev->dev,
1073                         "%s/2: The frontend of your DVB/ATSC card isn't supported yet\n",
1074                         dev->name);
1075                 break;
1076         }
1077         if (NULL == dvb->frontend) {
1078                 dev_err(dev->dev,
1079                        "%s/2: frontend initialization failed\n", dev->name);
1080                 result = -EINVAL;
1081                 goto out_free;
1082         }
1083
1084         /* register everything */
1085         result = register_dvb(dvb, THIS_MODULE, dev, dev->dev);
1086
1087         if (result < 0)
1088                 goto out_free;
1089
1090
1091         dev_info(dev->dev, "Successfully loaded cx231xx-dvb\n");
1092
1093 ret:
1094         cx231xx_set_mode(dev, CX231XX_SUSPEND);
1095         mutex_unlock(&dev->lock);
1096         return result;
1097
1098 out_free:
1099         kfree(dvb);
1100         dev->dvb = NULL;
1101         goto ret;
1102 }
1103
1104 static int dvb_fini(struct cx231xx *dev)
1105 {
1106         if (!dev->board.has_dvb) {
1107                 /* This device does not support the extension */
1108                 return 0;
1109         }
1110
1111         if (dev->dvb) {
1112                 unregister_dvb(dev->dvb);
1113                 dev->dvb = NULL;
1114         }
1115
1116         return 0;
1117 }
1118
1119 static struct cx231xx_ops dvb_ops = {
1120         .id = CX231XX_DVB,
1121         .name = "Cx231xx dvb Extension",
1122         .init = dvb_init,
1123         .fini = dvb_fini,
1124 };
1125
1126 static int __init cx231xx_dvb_register(void)
1127 {
1128         return cx231xx_register_extension(&dvb_ops);
1129 }
1130
1131 static void __exit cx231xx_dvb_unregister(void)
1132 {
1133         cx231xx_unregister_extension(&dvb_ops);
1134 }
1135
1136 module_init(cx231xx_dvb_register);
1137 module_exit(cx231xx_dvb_unregister);