drivers/media/video/em28xx/em28xx-dvb.c

   1 /*
   2  DVB device driver for em28xx
   3
   4  (c) 2008-2011 Mauro Carvalho Chehab <mchehab@infradead.org>
   5
   6  (c) 2008 Devin Heitmueller <devin.heitmueller@gmail.com>
   7         - Fixes for the driver to properly work with HVR-950
   8         - Fixes for the driver to properly work with Pinnacle PCTV HD Pro Stick
   9         - Fixes for the driver to properly work with AMD ATI TV Wonder HD 600
  10
  11  (c) 2008 Aidan Thornton <makosoft@googlemail.com>
  12
  13  Based on cx88-dvb, saa7134-dvb and videobuf-dvb originally written by:
  14         (c) 2004, 2005 Chris Pascoe <c.pascoe@itee.uq.edu.au>
  15         (c) 2004 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
  16
  17  This program is free software; you can redistribute it and/or modify
  18  it under the terms of the GNU General Public License as published by
  19  the Free Software Foundation; either version 2 of the License.
  20  */
  21
  22 #include <linux/kernel.h>
  23 #include <linux/slab.h>
  24 #include <linux/usb.h>
  25
  26 #include "em28xx.h"
  27 #include <media/v4l2-common.h>
  28 #include <media/videobuf-vmalloc.h>
  29 #include <media/tuner.h>
  30 #include "tuner-simple.h"
  31
  32 #include "lgdt330x.h"
  33 #include "lgdt3305.h"
  34 #include "zl10353.h"
  35 #include "s5h1409.h"
  36 #include "mt352.h"
  37 #include "mt352_priv.h" /* FIXME */
  38 #include "tda1002x.h"
  39 #include "tda18271.h"
  40 #include "s921.h"
  41 #include "drxd.h"
  42 #include "cxd2820r.h"
  43 #include "tda18271c2dd.h"
  44 #include "drxk.h"
  45
  46 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  47 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  48 MODULE_LICENSE("GPL");
  49
  50 static unsigned int debug;
  51 module_param(debug, int, 0644);
  52 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  53
  54 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  55
  56 #define dprintk(level, fmt, arg...) do {                        \
  57 if (debug >= level)                                             \
  58         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  59 } while (0)
  60
  61 #define EM28XX_DVB_NUM_BUFS 5
  62 #define EM28XX_DVB_MAX_PACKETS 64
  63
  64 struct em28xx_dvb {
  65         struct dvb_frontend        *fe[2];
  66
  67         /* feed count management */
  68         struct mutex               lock;
  69         int                        nfeeds;
  70
  71         /* general boilerplate stuff */
  72         struct dvb_adapter         adapter;
  73         struct dvb_demux           demux;
  74         struct dmxdev              dmxdev;
  75         struct dmx_frontend        fe_hw;
  76         struct dmx_frontend        fe_mem;
  77         struct dvb_net             net;
  78
  79         /* Due to DRX-D - probably need changes */
  80         int (*gate_ctrl)(struct dvb_frontend *, int);
  81         struct semaphore      pll_mutex;
  82 };
  83
  84
  85 static inline void print_err_status(struct em28xx *dev,
  86                                      int packet, int status)
  87 {
  88         char *errmsg = "Unknown";
  89
  90         switch (status) {
  91         case -ENOENT:
  92                 errmsg = "unlinked synchronuously";
  93                 break;
  94         case -ECONNRESET:
  95                 errmsg = "unlinked asynchronuously";
  96                 break;
  97         case -ENOSR:
  98                 errmsg = "Buffer error (overrun)";
  99                 break;
 100         case -EPIPE:
 101                 errmsg = "Stalled (device not responding)";
 102                 break;
 103         case -EOVERFLOW:
 104                 errmsg = "Babble (bad cable?)";
 105                 break;
 106         case -EPROTO:
 107                 errmsg = "Bit-stuff error (bad cable?)";
 108                 break;
 109         case -EILSEQ:
 110                 errmsg = "CRC/Timeout (could be anything)";
 111                 break;
 112         case -ETIME:
 113                 errmsg = "Device does not respond";
 114                 break;
 115         }
 116         if (packet < 0) {
 117                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 118         } else {
 119                 dprintk(1, "URB packet %d, status %d [%s].\n",
 120                         packet, status, errmsg);
 121         }
 122 }
 123
 124 static inline int dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
 125 {
 126         int i;
 127
 128         if (!dev)
 129                 return 0;
 130
 131         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 132                 return 0;
 133
 134         if (urb->status < 0) {
 135                 print_err_status(dev, -1, urb->status);
 136                 if (urb->status == -ENOENT)
 137                         return 0;
 138         }
 139
 140         for (i = 0; i < urb->number_of_packets; i++) {
 141                 int status = urb->iso_frame_desc[i].status;
 142
 143                 if (status < 0) {
 144                         print_err_status(dev, i, status);
 145                         if (urb->iso_frame_desc[i].status != -EPROTO)
 146                                 continue;
 147                 }
 148
 149                 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
 150                                  urb->iso_frame_desc[i].offset,
 151                                  urb->iso_frame_desc[i].actual_length);
 152         }
 153
 154         return 0;
 155 }
 156
 157 static int start_streaming(struct em28xx_dvb *dvb)
 158 {
 159         int rc;
 160         struct em28xx *dev = dvb->adapter.priv;
 161         int max_dvb_packet_size;
 162
 163         usb_set_interface(dev->udev, 0, 1);
 164         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 165         if (rc < 0)
 166                 return rc;
 167
 168         max_dvb_packet_size = em28xx_isoc_dvb_max_packetsize(dev);
 169
 170         return em28xx_init_isoc(dev, EM28XX_DVB_MAX_PACKETS,
 171                                 EM28XX_DVB_NUM_BUFS, max_dvb_packet_size,
 172                                 dvb_isoc_copy);
 173 }
 174
 175 static int stop_streaming(struct em28xx_dvb *dvb)
 176 {
 177         struct em28xx *dev = dvb->adapter.priv;
 178
 179         em28xx_uninit_isoc(dev);
 180
 181         em28xx_set_mode(dev, EM28XX_SUSPEND);
 182
 183         return 0;
 184 }
 185
 186 static int start_feed(struct dvb_demux_feed *feed)
 187 {
 188         struct dvb_demux *demux  = feed->demux;
 189         struct em28xx_dvb *dvb = demux->priv;
 190         int rc, ret;
 191
 192         if (!demux->dmx.frontend)
 193                 return -EINVAL;
 194
 195         mutex_lock(&dvb->lock);
 196         dvb->nfeeds++;
 197         rc = dvb->nfeeds;
 198
 199         if (dvb->nfeeds == 1) {
 200                 ret = start_streaming(dvb);
 201                 if (ret < 0)
 202                         rc = ret;
 203         }
 204
 205         mutex_unlock(&dvb->lock);
 206         return rc;
 207 }
 208
 209 static int stop_feed(struct dvb_demux_feed *feed)
 210 {
 211         struct dvb_demux *demux  = feed->demux;
 212         struct em28xx_dvb *dvb = demux->priv;
 213         int err = 0;
 214
 215         mutex_lock(&dvb->lock);
 216         dvb->nfeeds--;
 217
 218         if (0 == dvb->nfeeds)
 219                 err = stop_streaming(dvb);
 220
 221         mutex_unlock(&dvb->lock);
 222         return err;
 223 }
 224
 225
 226
 227 /* ------------------------------------------------------------------ */
 228 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 229 {
 230         struct em28xx *dev = fe->dvb->priv;
 231
 232         if (acquire)
 233                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 234         else
 235                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 236 }
 237
 238 /* ------------------------------------------------------------------ */
 239
 240 static struct lgdt330x_config em2880_lgdt3303_dev = {
 241         .demod_address = 0x0e,
 242         .demod_chip = LGDT3303,
 243 };
 244
 245 static struct lgdt3305_config em2870_lgdt3304_dev = {
 246         .i2c_addr           = 0x0e,
 247         .demod_chip         = LGDT3304,
 248         .spectral_inversion = 1,
 249         .deny_i2c_rptr      = 1,
 250         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 251         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 252         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 253         .vsb_if_khz         = 3250,
 254         .qam_if_khz         = 4000,
 255 };
 256
 257 static struct s921_config sharp_isdbt = {
 258         .demod_address = 0x30 >> 1
 259 };
 260
 261 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 262         .demod_address = (0x1e >> 1),
 263         .no_tuner = 1,
 264         .parallel_ts = 1,
 265         .if2 = 45600,
 266 };
 267
 268 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 269         .demod_address = 0x32 >> 1,
 270         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 271         .gpio          = S5H1409_GPIO_OFF,
 272         .inversion     = S5H1409_INVERSION_OFF,
 273         .status_mode   = S5H1409_DEMODLOCKING,
 274         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 275 };
 276
 277 static struct tda18271_std_map kworld_a340_std_map = {
 278         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 279                       .if_lvl = 1, .rfagc_top = 0x37, },
 280         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 281                       .if_lvl = 1, .rfagc_top = 0x37, },
 282 };
 283
 284 static struct tda18271_config kworld_a340_config = {
 285         .std_map           = &kworld_a340_std_map,
 286 };
 287
 288 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 289         .demod_address = (0x1e >> 1),
 290         .no_tuner = 1,
 291         .disable_i2c_gate_ctrl = 1,
 292         .parallel_ts = 1,
 293         .if2 = 45600,
 294 };
 295
 296 static struct drxd_config em28xx_drxd = {
 297         .index = 0, .demod_address = 0x70, .demod_revision = 0xa2,
 298         .demoda_address = 0x00, .pll_address = 0x00,
 299         .pll_type = DRXD_PLL_NONE, .clock = 12000, .insert_rs_byte = 1,
 300         .pll_set = NULL, .osc_deviation = NULL, .IF = 42800000,
 301         .disable_i2c_gate_ctrl = 1,
 302 };
 303
 304 struct drxk_config terratec_h5_drxk = {
 305         .adr = 0x29,
 306         .single_master = 1,
 307         .no_i2c_bridge = 1,
 308         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 309 };
 310
 311 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 312 {
 313         struct em28xx_dvb *dvb = fe->sec_priv;
 314         int status;
 315
 316         if (!dvb)
 317                 return -EINVAL;
 318
 319         if (enable) {
 320                 down(&dvb->pll_mutex);
 321                 status = dvb->gate_ctrl(fe, 1);
 322         } else {
 323                 status = dvb->gate_ctrl(fe, 0);
 324                 up(&dvb->pll_mutex);
 325         }
 326         return status;
 327 }
 328
 329 static void terratec_h5_init(struct em28xx *dev)
 330 {
 331         int i;
 332         struct em28xx_reg_seq terratec_h5_init[] = {
 333                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 334                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 335                 {EM2874_R80_GPIO,       0xf2,   0xff,   50},
 336                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 337                 { -1,                   -1,     -1,     -1},
 338         };
 339         struct em28xx_reg_seq terratec_h5_end[] = {
 340                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 341                 {EM2874_R80_GPIO,       0xa6,   0xff,   50},
 342                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 343                 { -1,                   -1,     -1,     -1},
 344         };
 345         struct {
 346                 unsigned char r[4];
 347                 int len;
 348         } regs[] = {
 349                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 350                 {{ 0x01, 0x02 }, 2},
 351                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 352                 {{ 0x01, 0x00 }, 2},
 353                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 354                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 355                 {{ 0x01, 0x00 }, 2},
 356                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 357                 {{ 0x04, 0x00 }, 2},
 358                 {{ 0x00, 0x04 }, 2},
 359                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 360                 {{ 0x04, 0x14 }, 2},
 361                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 362         };
 363
 364         em28xx_gpio_set(dev, terratec_h5_init);
 365         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 366         msleep(10);
 367         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 368         msleep(10);
 369
 370         dev->i2c_client.addr = 0x82 >> 1;
 371
 372         for (i = 0; i < ARRAY_SIZE(regs); i++)
 373                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 374         em28xx_gpio_set(dev, terratec_h5_end);
 375 };
 376
 377 static int mt352_terratec_xs_init(struct dvb_frontend *fe)
 378 {
 379         /* Values extracted from a USB trace of the Terratec Windows driver */
 380         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 381         static u8 reset[]          = { RESET,      0x80 };
 382         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 383         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 384         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 385         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 386         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 387         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 388         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 389         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 390
 391         mt352_write(fe, clock_config,   sizeof(clock_config));
 392         udelay(200);
 393         mt352_write(fe, reset,          sizeof(reset));
 394         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 395         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 396         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 397         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 398         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 399         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 400         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 401         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 402         return 0;
 403 }
 404
 405 static struct mt352_config terratec_xs_mt352_cfg = {
 406         .demod_address = (0x1e >> 1),
 407         .no_tuner = 1,
 408         .if2 = 45600,
 409         .demod_init = mt352_terratec_xs_init,
 410 };
 411
 412 static struct tda10023_config em28xx_tda10023_config = {
 413         .demod_address = 0x0c,
 414         .invert = 1,
 415 };
 416
 417 static struct cxd2820r_config em28xx_cxd2820r_config = {
 418         .i2c_address = (0xd8 >> 1),
 419         .ts_mode = CXD2820R_TS_SERIAL,
 420         .if_dvbt_6  = 3300,
 421         .if_dvbt_7  = 3500,
 422         .if_dvbt_8  = 4000,
 423         .if_dvbt2_6 = 3300,
 424         .if_dvbt2_7 = 3500,
 425         .if_dvbt2_8 = 4000,
 426         .if_dvbc    = 5000,
 427
 428         /* enable LNA for DVB-T2 and DVB-C */
 429         .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 430         .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 431 };
 432
 433 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 434         .output_opt = TDA18271_OUTPUT_LT_OFF,
 435 };
 436
 437 /* ------------------------------------------------------------------ */
 438
 439 static int attach_xc3028(u8 addr, struct em28xx *dev)
 440 {
 441         struct dvb_frontend *fe;
 442         struct xc2028_config cfg;
 443
 444         memset(&cfg, 0, sizeof(cfg));
 445         cfg.i2c_adap  = &dev->i2c_adap;
 446         cfg.i2c_addr  = addr;
 447
 448         if (!dev->dvb->fe[0]) {
 449                 em28xx_errdev("/2: dvb frontend not attached. "
 450                                 "Can't attach xc3028\n");
 451                 return -EINVAL;
 452         }
 453
 454         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 455         if (!fe) {
 456                 em28xx_errdev("/2: xc3028 attach failed\n");
 457                 dvb_frontend_detach(dev->dvb->fe[0]);
 458                 dev->dvb->fe[0] = NULL;
 459                 return -EINVAL;
 460         }
 461
 462         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 463
 464         return 0;
 465 }
 466
 467 /* ------------------------------------------------------------------ */
 468
 469 static int register_dvb(struct em28xx_dvb *dvb,
 470                  struct module *module,
 471                  struct em28xx *dev,
 472                  struct device *device)
 473 {
 474         int result;
 475
 476         mutex_init(&dvb->lock);
 477
 478         /* register adapter */
 479         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 480                                       adapter_nr);
 481         if (result < 0) {
 482                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 483                        dev->name, result);
 484                 goto fail_adapter;
 485         }
 486
 487         /* Ensure all frontends negotiate bus access */
 488         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 489         if (dvb->fe[1])
 490                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 491
 492         dvb->adapter.priv = dev;
 493
 494         /* register frontend */
 495         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 496         if (result < 0) {
 497                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 498                        dev->name, result);
 499                 goto fail_frontend0;
 500         }
 501
 502         /* register 2nd frontend */
 503         if (dvb->fe[1]) {
 504                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 505                 if (result < 0) {
 506                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 507                                 dev->name, result);
 508                         goto fail_frontend1;
 509                 }
 510         }
 511
 512         /* register demux stuff */
 513         dvb->demux.dmx.capabilities =
 514                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 515                 DMX_MEMORY_BASED_FILTERING;
 516         dvb->demux.priv       = dvb;
 517         dvb->demux.filternum  = 256;
 518         dvb->demux.feednum    = 256;
 519         dvb->demux.start_feed = start_feed;
 520         dvb->demux.stop_feed  = stop_feed;
 521
 522         result = dvb_dmx_init(&dvb->demux);
 523         if (result < 0) {
 524                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 525                        dev->name, result);
 526                 goto fail_dmx;
 527         }
 528
 529         dvb->dmxdev.filternum    = 256;
 530         dvb->dmxdev.demux        = &dvb->demux.dmx;
 531         dvb->dmxdev.capabilities = 0;
 532         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 533         if (result < 0) {
 534                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 535                        dev->name, result);
 536                 goto fail_dmxdev;
 537         }
 538
 539         dvb->fe_hw.source = DMX_FRONTEND_0;
 540         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 541         if (result < 0) {
 542                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 543                        dev->name, result);
 544                 goto fail_fe_hw;
 545         }
 546
 547         dvb->fe_mem.source = DMX_MEMORY_FE;
 548         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 549         if (result < 0) {
 550                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 551                        dev->name, result);
 552                 goto fail_fe_mem;
 553         }
 554
 555         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 556         if (result < 0) {
 557                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 558                        dev->name, result);
 559                 goto fail_fe_conn;
 560         }
 561
 562         /* register network adapter */
 563         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 564         return 0;
 565
 566 fail_fe_conn:
 567         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 568 fail_fe_mem:
 569         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 570 fail_fe_hw:
 571         dvb_dmxdev_release(&dvb->dmxdev);
 572 fail_dmxdev:
 573         dvb_dmx_release(&dvb->demux);
 574 fail_dmx:
 575         if (dvb->fe[1])
 576                 dvb_unregister_frontend(dvb->fe[1]);
 577         dvb_unregister_frontend(dvb->fe[0]);
 578 fail_frontend1:
 579         if (dvb->fe[1])
 580                 dvb_frontend_detach(dvb->fe[1]);
 581 fail_frontend0:
 582         dvb_frontend_detach(dvb->fe[0]);
 583         dvb_unregister_adapter(&dvb->adapter);
 584 fail_adapter:
 585         return result;
 586 }
 587
 588 static void unregister_dvb(struct em28xx_dvb *dvb)
 589 {
 590         dvb_net_release(&dvb->net);
 591         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 592         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 593         dvb_dmxdev_release(&dvb->dmxdev);
 594         dvb_dmx_release(&dvb->demux);
 595         if (dvb->fe[1])
 596                 dvb_unregister_frontend(dvb->fe[1]);
 597         dvb_unregister_frontend(dvb->fe[0]);
 598         if (dvb->fe[1])
 599                 dvb_frontend_detach(dvb->fe[1]);
 600         dvb_frontend_detach(dvb->fe[0]);
 601         dvb_unregister_adapter(&dvb->adapter);
 602 }
 603
 604 static int dvb_init(struct em28xx *dev)
 605 {
 606         int result = 0;
 607         struct em28xx_dvb *dvb;
 608
 609         if (!dev->board.has_dvb) {
 610                 /* This device does not support the extension */
 611                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 612                 return 0;
 613         }
 614
 615         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 616
 617         if (dvb == NULL) {
 618                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 619                 return -ENOMEM;
 620         }
 621         dev->dvb = dvb;
 622         dvb->fe[0] = dvb->fe[1] = NULL;
 623
 624         mutex_lock(&dev->lock);
 625         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 626         /* init frontend */
 627         switch (dev->model) {
 628         case EM2874_BOARD_LEADERSHIP_ISDBT:
 629                 dvb->fe[0] = dvb_attach(s921_attach,
 630                                 &sharp_isdbt, &dev->i2c_adap);
 631
 632                 if (!dvb->fe[0]) {
 633                         result = -EINVAL;
 634                         goto out_free;
 635                 }
 636
 637                 break;
 638         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 639         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 640         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 641         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 642                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 643                                            &em2880_lgdt3303_dev,
 644                                            &dev->i2c_adap);
 645                 if (attach_xc3028(0x61, dev) < 0) {
 646                         result = -EINVAL;
 647                         goto out_free;
 648                 }
 649                 break;
 650         case EM2880_BOARD_KWORLD_DVB_310U:
 651                 dvb->fe[0] = dvb_attach(zl10353_attach,
 652                                            &em28xx_zl10353_with_xc3028,
 653                                            &dev->i2c_adap);
 654                 if (attach_xc3028(0x61, dev) < 0) {
 655                         result = -EINVAL;
 656                         goto out_free;
 657                 }
 658                 break;
 659         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 660         case EM2882_BOARD_TERRATEC_HYBRID_XS:
 661         case EM2880_BOARD_EMPIRE_DUAL_TV:
 662                 dvb->fe[0] = dvb_attach(zl10353_attach,
 663                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 664                                            &dev->i2c_adap);
 665                 if (attach_xc3028(0x61, dev) < 0) {
 666                         result = -EINVAL;
 667                         goto out_free;
 668                 }
 669                 break;
 670         case EM2880_BOARD_TERRATEC_HYBRID_XS:
 671         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
 672         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
 673         case EM2882_BOARD_DIKOM_DK300:
 674         case EM2882_BOARD_KWORLD_VS_DVBT:
 675                 dvb->fe[0] = dvb_attach(zl10353_attach,
 676                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 677                                            &dev->i2c_adap);
 678                 if (dvb->fe[0] == NULL) {
 679                         /* This board could have either a zl10353 or a mt352.
 680                            If the chip id isn't for zl10353, try mt352 */
 681                         dvb->fe[0] = dvb_attach(mt352_attach,
 682                                                    &terratec_xs_mt352_cfg,
 683                                                    &dev->i2c_adap);
 684                 }
 685
 686                 if (attach_xc3028(0x61, dev) < 0) {
 687                         result = -EINVAL;
 688                         goto out_free;
 689                 }
 690                 break;
 691         case EM2883_BOARD_KWORLD_HYBRID_330U:
 692         case EM2882_BOARD_EVGA_INDTUBE:
 693                 dvb->fe[0] = dvb_attach(s5h1409_attach,
 694                                            &em28xx_s5h1409_with_xc3028,
 695                                            &dev->i2c_adap);
 696                 if (attach_xc3028(0x61, dev) < 0) {
 697                         result = -EINVAL;
 698                         goto out_free;
 699                 }
 700                 break;
 701         case EM2882_BOARD_KWORLD_ATSC_315U:
 702                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 703                                            &em2880_lgdt3303_dev,
 704                                            &dev->i2c_adap);
 705                 if (dvb->fe[0] != NULL) {
 706                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 707                                 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
 708                                 result = -EINVAL;
 709                                 goto out_free;
 710                         }
 711                 }
 712                 break;
 713         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
 714         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
 715                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
 716                                            &dev->i2c_adap, &dev->udev->dev);
 717                 if (attach_xc3028(0x61, dev) < 0) {
 718                         result = -EINVAL;
 719                         goto out_free;
 720                 }
 721                 break;
 722         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
 723                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
 724                 dvb->fe[0] = dvb_attach(tda10023_attach,
 725                         &em28xx_tda10023_config,
 726                         &dev->i2c_adap, 0x48);
 727                 if (dvb->fe[0]) {
 728                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 729                                 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
 730                                 result = -EINVAL;
 731                                 goto out_free;
 732                         }
 733                 }
 734                 break;
 735         case EM2870_BOARD_KWORLD_A340:
 736                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
 737                                            &em2870_lgdt3304_dev,
 738                                            &dev->i2c_adap);
 739                 if (dvb->fe[0] != NULL)
 740                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 741                                    &dev->i2c_adap, &kworld_a340_config);
 742                 break;
 743         case EM28174_BOARD_PCTV_290E:
 744                 /* MFE
 745                  * FE 0 = DVB-T/T2 + FE 1 = DVB-C, both sharing same tuner. */
 746                 /* FE 0 */
 747                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
 748                         &em28xx_cxd2820r_config, &dev->i2c_adap, NULL);
 749                 if (dvb->fe[0]) {
 750                         struct i2c_adapter *i2c_tuner;
 751                         i2c_tuner = cxd2820r_get_tuner_i2c_adapter(dvb->fe[0]);
 752                         /* FE 0 attach tuner */
 753                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 754                                 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
 755                                 dvb_frontend_detach(dvb->fe[0]);
 756                                 result = -EINVAL;
 757                                 goto out_free;
 758                         }
 759                         /* FE 1. This dvb_attach() cannot fail. */
 760                         dvb->fe[1] = dvb_attach(cxd2820r_attach, NULL, NULL,
 761                                 dvb->fe[0]);
 762                         dvb->fe[1]->id = 1;
 763                         /* FE 1 attach tuner */
 764                         if (!dvb_attach(tda18271_attach, dvb->fe[1], 0x60,
 765                                 i2c_tuner, &em28xx_cxd2820r_tda18271_config)) {
 766                                 dvb_frontend_detach(dvb->fe[1]);
 767                                 /* leave FE 0 still active */
 768                         }
 769                 }
 770                 break;
 771         case EM2884_BOARD_TERRATEC_H5:
 772                 terratec_h5_init(dev);
 773
 774                 /* dvb->fe[1] will be DVB-C, and dvb->fe[0] will be DVB-T */
 775                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap, &dvb->fe[1]);
 776                 if (!dvb->fe[0] || !dvb->fe[1]) {
 777                         result = -EINVAL;
 778                         goto out_free;
 779                 }
 780                 /* FIXME: do we need a pll semaphore? */
 781                 dvb->fe[0]->sec_priv = dvb;
 782                 sema_init(&dvb->pll_mutex, 1);
 783                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
 784                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
 785                 dvb->fe[1]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
 786                 dvb->fe[1]->id = 1;
 787
 788                 /* Attach tda18271 */
 789                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 790                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
 791                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
 792                         result = -EINVAL;
 793                         goto out_free;
 794                 }
 795                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 796                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
 797                 if (dvb->fe[1]->ops.i2c_gate_ctrl)
 798                         dvb->fe[1]->ops.i2c_gate_ctrl(dvb->fe[1], 1);
 799
 800                 break;
 801         default:
 802                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
 803                                 " isn't supported yet\n");
 804                 break;
 805         }
 806         if (NULL == dvb->fe[0]) {
 807                 em28xx_errdev("/2: frontend initialization failed\n");
 808                 result = -EINVAL;
 809                 goto out_free;
 810         }
 811         /* define general-purpose callback pointer */
 812         dvb->fe[0]->callback = em28xx_tuner_callback;
 813
 814         /* register everything */
 815         result = register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
 816
 817         if (result < 0)
 818                 goto out_free;
 819
 820         em28xx_info("Successfully loaded em28xx-dvb\n");
 821 ret:
 822         em28xx_set_mode(dev, EM28XX_SUSPEND);
 823         mutex_unlock(&dev->lock);
 824         return result;
 825
 826 out_free:
 827         kfree(dvb);
 828         dev->dvb = NULL;
 829         goto ret;
 830 }
 831
 832 static int dvb_fini(struct em28xx *dev)
 833 {
 834         if (!dev->board.has_dvb) {
 835                 /* This device does not support the extension */
 836                 return 0;
 837         }
 838
 839         if (dev->dvb) {
 840                 unregister_dvb(dev->dvb);
 841                 kfree(dev->dvb);
 842                 dev->dvb = NULL;
 843         }
 844
 845         return 0;
 846 }
 847
 848 static struct em28xx_ops dvb_ops = {
 849         .id   = EM28XX_DVB,
 850         .name = "Em28xx dvb Extension",
 851         .init = dvb_init,
 852         .fini = dvb_fini,
 853 };
 854
 855 static int __init em28xx_dvb_register(void)
 856 {
 857         return em28xx_register_extension(&dvb_ops);
 858 }
 859
 860 static void __exit em28xx_dvb_unregister(void)
 861 {
 862         em28xx_unregister_extension(&dvb_ops);
 863 }
 864
 865 module_init(em28xx_dvb_register);
 866 module_exit(em28xx_dvb_unregister);