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 #include "tda10071.h"
  46 #include "a8293.h"
  47 #include "qt1010.h"
  48
  49 MODULE_DESCRIPTION("driver for em28xx based DVB cards");
  50 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
  51 MODULE_LICENSE("GPL");
  52
  53 static unsigned int debug;
  54 module_param(debug, int, 0644);
  55 MODULE_PARM_DESC(debug, "enable debug messages [dvb]");
  56
  57 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  58
  59 #define dprintk(level, fmt, arg...) do {                        \
  60 if (debug >= level)                                             \
  61         printk(KERN_DEBUG "%s/2-dvb: " fmt, dev->name, ## arg); \
  62 } while (0)
  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-K - probably need changes */
  80         int (*gate_ctrl)(struct dvb_frontend *, int);
  81         struct semaphore      pll_mutex;
  82         bool                    dont_attach_fe1;
  83 };
  84
  85
  86 static inline void print_err_status(struct em28xx *dev,
  87                                      int packet, int status)
  88 {
  89         char *errmsg = "Unknown";
  90
  91         switch (status) {
  92         case -ENOENT:
  93                 errmsg = "unlinked synchronuously";
  94                 break;
  95         case -ECONNRESET:
  96                 errmsg = "unlinked asynchronuously";
  97                 break;
  98         case -ENOSR:
  99                 errmsg = "Buffer error (overrun)";
 100                 break;
 101         case -EPIPE:
 102                 errmsg = "Stalled (device not responding)";
 103                 break;
 104         case -EOVERFLOW:
 105                 errmsg = "Babble (bad cable?)";
 106                 break;
 107         case -EPROTO:
 108                 errmsg = "Bit-stuff error (bad cable?)";
 109                 break;
 110         case -EILSEQ:
 111                 errmsg = "CRC/Timeout (could be anything)";
 112                 break;
 113         case -ETIME:
 114                 errmsg = "Device does not respond";
 115                 break;
 116         }
 117         if (packet < 0) {
 118                 dprintk(1, "URB status %d [%s].\n", status, errmsg);
 119         } else {
 120                 dprintk(1, "URB packet %d, status %d [%s].\n",
 121                         packet, status, errmsg);
 122         }
 123 }
 124
 125 static inline int em28xx_dvb_isoc_copy(struct em28xx *dev, struct urb *urb)
 126 {
 127         int i;
 128
 129         if (!dev)
 130                 return 0;
 131
 132         if ((dev->state & DEV_DISCONNECTED) || (dev->state & DEV_MISCONFIGURED))
 133                 return 0;
 134
 135         if (urb->status < 0) {
 136                 print_err_status(dev, -1, urb->status);
 137                 if (urb->status == -ENOENT)
 138                         return 0;
 139         }
 140
 141         for (i = 0; i < urb->number_of_packets; i++) {
 142                 int status = urb->iso_frame_desc[i].status;
 143
 144                 if (status < 0) {
 145                         print_err_status(dev, i, status);
 146                         if (urb->iso_frame_desc[i].status != -EPROTO)
 147                                 continue;
 148                 }
 149
 150                 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer +
 151                                  urb->iso_frame_desc[i].offset,
 152                                  urb->iso_frame_desc[i].actual_length);
 153         }
 154
 155         return 0;
 156 }
 157
 158 static int em28xx_start_streaming(struct em28xx_dvb *dvb)
 159 {
 160         int rc;
 161         struct em28xx *dev = dvb->adapter.priv;
 162         int max_dvb_packet_size;
 163
 164         usb_set_interface(dev->udev, 0, dev->dvb_alt);
 165         rc = em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 166         if (rc < 0)
 167                 return rc;
 168
 169         max_dvb_packet_size = dev->dvb_max_pkt_size;
 170         if (max_dvb_packet_size < 0)
 171                 return max_dvb_packet_size;
 172         dprintk(1, "Using %d buffers each with %d x %d bytes\n",
 173                 EM28XX_DVB_NUM_BUFS,
 174                 EM28XX_DVB_MAX_PACKETS,
 175                 max_dvb_packet_size);
 176
 177         return em28xx_init_isoc(dev, EM28XX_DIGITAL_MODE,
 178                                 EM28XX_DVB_MAX_PACKETS, EM28XX_DVB_NUM_BUFS,
 179                                 max_dvb_packet_size, em28xx_dvb_isoc_copy);
 180 }
 181
 182 static int em28xx_stop_streaming(struct em28xx_dvb *dvb)
 183 {
 184         struct em28xx *dev = dvb->adapter.priv;
 185
 186         em28xx_stop_urbs(dev);
 187
 188         em28xx_set_mode(dev, EM28XX_SUSPEND);
 189
 190         return 0;
 191 }
 192
 193 static int em28xx_start_feed(struct dvb_demux_feed *feed)
 194 {
 195         struct dvb_demux *demux  = feed->demux;
 196         struct em28xx_dvb *dvb = demux->priv;
 197         int rc, ret;
 198
 199         if (!demux->dmx.frontend)
 200                 return -EINVAL;
 201
 202         mutex_lock(&dvb->lock);
 203         dvb->nfeeds++;
 204         rc = dvb->nfeeds;
 205
 206         if (dvb->nfeeds == 1) {
 207                 ret = em28xx_start_streaming(dvb);
 208                 if (ret < 0)
 209                         rc = ret;
 210         }
 211
 212         mutex_unlock(&dvb->lock);
 213         return rc;
 214 }
 215
 216 static int em28xx_stop_feed(struct dvb_demux_feed *feed)
 217 {
 218         struct dvb_demux *demux  = feed->demux;
 219         struct em28xx_dvb *dvb = demux->priv;
 220         int err = 0;
 221
 222         mutex_lock(&dvb->lock);
 223         dvb->nfeeds--;
 224
 225         if (0 == dvb->nfeeds)
 226                 err = em28xx_stop_streaming(dvb);
 227
 228         mutex_unlock(&dvb->lock);
 229         return err;
 230 }
 231
 232
 233
 234 /* ------------------------------------------------------------------ */
 235 static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
 236 {
 237         struct em28xx *dev = fe->dvb->priv;
 238
 239         if (acquire)
 240                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 241         else
 242                 return em28xx_set_mode(dev, EM28XX_SUSPEND);
 243 }
 244
 245 /* ------------------------------------------------------------------ */
 246
 247 static struct lgdt330x_config em2880_lgdt3303_dev = {
 248         .demod_address = 0x0e,
 249         .demod_chip = LGDT3303,
 250 };
 251
 252 static struct lgdt3305_config em2870_lgdt3304_dev = {
 253         .i2c_addr           = 0x0e,
 254         .demod_chip         = LGDT3304,
 255         .spectral_inversion = 1,
 256         .deny_i2c_rptr      = 1,
 257         .mpeg_mode          = LGDT3305_MPEG_PARALLEL,
 258         .tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
 259         .tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
 260         .vsb_if_khz         = 3250,
 261         .qam_if_khz         = 4000,
 262 };
 263
 264 static struct s921_config sharp_isdbt = {
 265         .demod_address = 0x30 >> 1
 266 };
 267
 268 static struct zl10353_config em28xx_zl10353_with_xc3028 = {
 269         .demod_address = (0x1e >> 1),
 270         .no_tuner = 1,
 271         .parallel_ts = 1,
 272         .if2 = 45600,
 273 };
 274
 275 static struct s5h1409_config em28xx_s5h1409_with_xc3028 = {
 276         .demod_address = 0x32 >> 1,
 277         .output_mode   = S5H1409_PARALLEL_OUTPUT,
 278         .gpio          = S5H1409_GPIO_OFF,
 279         .inversion     = S5H1409_INVERSION_OFF,
 280         .status_mode   = S5H1409_DEMODLOCKING,
 281         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
 282 };
 283
 284 static struct tda18271_std_map kworld_a340_std_map = {
 285         .atsc_6   = { .if_freq = 3250, .agc_mode = 3, .std = 0,
 286                       .if_lvl = 1, .rfagc_top = 0x37, },
 287         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 1,
 288                       .if_lvl = 1, .rfagc_top = 0x37, },
 289 };
 290
 291 static struct tda18271_config kworld_a340_config = {
 292         .std_map           = &kworld_a340_std_map,
 293 };
 294
 295 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 296         .demod_address = (0x1e >> 1),
 297         .no_tuner = 1,
 298         .disable_i2c_gate_ctrl = 1,
 299         .parallel_ts = 1,
 300         .if2 = 45600,
 301 };
 302
 303 static struct drxd_config em28xx_drxd = {
 304         .demod_address = 0x70,
 305         .demod_revision = 0xa2,
 306         .pll_type = DRXD_PLL_NONE,
 307         .clock = 12000,
 308         .insert_rs_byte = 1,
 309         .IF = 42800000,
 310         .disable_i2c_gate_ctrl = 1,
 311 };
 312
 313 struct drxk_config terratec_h5_drxk = {
 314         .adr = 0x29,
 315         .single_master = 1,
 316         .no_i2c_bridge = 1,
 317         .microcode_name = "dvb-usb-terratec-h5-drxk.fw",
 318 };
 319
 320 struct drxk_config hauppauge_930c_drxk = {
 321         .adr = 0x29,
 322         .single_master = 1,
 323         .no_i2c_bridge = 1,
 324         .microcode_name = "dvb-usb-hauppauge-hvr930c-drxk.fw",
 325         .chunk_size = 56,
 326 };
 327
 328 struct drxk_config maxmedia_ub425_tc_drxk = {
 329         .adr = 0x29,
 330         .single_master = 1,
 331         .no_i2c_bridge = 1,
 332 };
 333
 334 struct drxk_config pctv_520e_drxk = {
 335         .adr = 0x29,
 336         .single_master = 1,
 337         .microcode_name = "dvb-demod-drxk-pctv.fw",
 338         .chunk_size = 58,
 339         .antenna_dvbt = true, /* disable LNA */
 340         .antenna_gpio = (1 << 2), /* disable LNA */
 341 };
 342
 343 static int drxk_gate_ctrl(struct dvb_frontend *fe, int enable)
 344 {
 345         struct em28xx_dvb *dvb = fe->sec_priv;
 346         int status;
 347
 348         if (!dvb)
 349                 return -EINVAL;
 350
 351         if (enable) {
 352                 down(&dvb->pll_mutex);
 353                 status = dvb->gate_ctrl(fe, 1);
 354         } else {
 355                 status = dvb->gate_ctrl(fe, 0);
 356                 up(&dvb->pll_mutex);
 357         }
 358         return status;
 359 }
 360
 361 static void hauppauge_hvr930c_init(struct em28xx *dev)
 362 {
 363         int i;
 364
 365         struct em28xx_reg_seq hauppauge_hvr930c_init[] = {
 366                 {EM2874_R80_GPIO,       0xff,   0xff,   0x65},
 367                 {EM2874_R80_GPIO,       0xfb,   0xff,   0x32},
 368                 {EM2874_R80_GPIO,       0xff,   0xff,   0xb8},
 369                 { -1,                   -1,     -1,     -1},
 370         };
 371         struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 372                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 373                 {EM2874_R80_GPIO,       0xaf,   0xff,   0x65},
 374                 {EM2874_R80_GPIO,       0xef,   0xff,   0x76},
 375                 {EM2874_R80_GPIO,       0xef,   0xff,   0x01},
 376                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 377                 {EM2874_R80_GPIO,       0xef,   0xff,   0x40},
 378
 379                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x65},
 380                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 381                 {EM2874_R80_GPIO,       0xcf,   0xff,   0x0b},
 382                 {EM2874_R80_GPIO,       0xef,   0xff,   0x65},
 383
 384                 { -1,                   -1,     -1,     -1},
 385         };
 386
 387         struct {
 388                 unsigned char r[4];
 389                 int len;
 390         } regs[] = {
 391                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 392                 {{ 0x01, 0x02 }, 2},
 393                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 394                 {{ 0x01, 0x00 }, 2},
 395                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 396                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 397                 {{ 0x01, 0x00 }, 2},
 398                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 399                 {{ 0x04, 0x00 }, 2},
 400                 {{ 0x00, 0x04 }, 2},
 401                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 402                 {{ 0x04, 0x14 }, 2},
 403                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 404         };
 405
 406         em28xx_gpio_set(dev, hauppauge_hvr930c_init);
 407         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 408         msleep(10);
 409         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 410         msleep(10);
 411
 412         dev->i2c_client.addr = 0x82 >> 1;
 413
 414         for (i = 0; i < ARRAY_SIZE(regs); i++)
 415                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 416         em28xx_gpio_set(dev, hauppauge_hvr930c_end);
 417
 418         msleep(100);
 419
 420         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x44);
 421         msleep(30);
 422
 423         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 424         msleep(10);
 425
 426 }
 427
 428 static void terratec_h5_init(struct em28xx *dev)
 429 {
 430         int i;
 431         struct em28xx_reg_seq terratec_h5_init[] = {
 432                 {EM28XX_R08_GPIO,       0xff,   0xff,   10},
 433                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 434                 {EM2874_R80_GPIO,       0xf2,   0xff,   50},
 435                 {EM2874_R80_GPIO,       0xf6,   0xff,   100},
 436                 { -1,                   -1,     -1,     -1},
 437         };
 438         struct em28xx_reg_seq terratec_h5_end[] = {
 439                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 440                 {EM2874_R80_GPIO,       0xa6,   0xff,   50},
 441                 {EM2874_R80_GPIO,       0xe6,   0xff,   100},
 442                 { -1,                   -1,     -1,     -1},
 443         };
 444         struct {
 445                 unsigned char r[4];
 446                 int len;
 447         } regs[] = {
 448                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 449                 {{ 0x01, 0x02 }, 2},
 450                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 451                 {{ 0x01, 0x00 }, 2},
 452                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 453                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 454                 {{ 0x01, 0x00 }, 2},
 455                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 456                 {{ 0x04, 0x00 }, 2},
 457                 {{ 0x00, 0x04 }, 2},
 458                 {{ 0x00, 0x04, 0x00, 0x0a }, 4},
 459                 {{ 0x04, 0x14 }, 2},
 460                 {{ 0x04, 0x14, 0x00, 0x00 }, 4},
 461         };
 462
 463         em28xx_gpio_set(dev, terratec_h5_init);
 464         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x40);
 465         msleep(10);
 466         em28xx_write_reg(dev, EM28XX_R06_I2C_CLK, 0x45);
 467         msleep(10);
 468
 469         dev->i2c_client.addr = 0x82 >> 1;
 470
 471         for (i = 0; i < ARRAY_SIZE(regs); i++)
 472                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 473         em28xx_gpio_set(dev, terratec_h5_end);
 474 };
 475
 476 static void pctv_520e_init(struct em28xx *dev)
 477 {
 478         /*
 479          * Init AVF4910B analog decoder. Looks like I2C traffic to
 480          * digital demodulator and tuner are routed via AVF4910B.
 481          */
 482         int i;
 483         struct {
 484                 unsigned char r[4];
 485                 int len;
 486         } regs[] = {
 487                 {{ 0x06, 0x02, 0x00, 0x31 }, 4},
 488                 {{ 0x01, 0x02 }, 2},
 489                 {{ 0x01, 0x02, 0x00, 0xc6 }, 4},
 490                 {{ 0x01, 0x00 }, 2},
 491                 {{ 0x01, 0x00, 0xff, 0xaf }, 4},
 492                 {{ 0x01, 0x00, 0x03, 0xa0 }, 4},
 493                 {{ 0x01, 0x00 }, 2},
 494                 {{ 0x01, 0x00, 0x73, 0xaf }, 4},
 495         };
 496
 497         dev->i2c_client.addr = 0x82 >> 1; /* 0x41 */
 498
 499         for (i = 0; i < ARRAY_SIZE(regs); i++)
 500                 i2c_master_send(&dev->i2c_client, regs[i].r, regs[i].len);
 501 };
 502
 503 static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)
 504 {
 505         /* Values extracted from a USB trace of the Terratec Windows driver */
 506         static u8 clock_config[]   = { CLOCK_CTL,  0x38, 0x2c };
 507         static u8 reset[]          = { RESET,      0x80 };
 508         static u8 adc_ctl_1_cfg[]  = { ADC_CTL_1,  0x40 };
 509         static u8 agc_cfg[]        = { AGC_TARGET, 0x28, 0xa0 };
 510         static u8 input_freq_cfg[] = { INPUT_FREQ_1, 0x31, 0xb8 };
 511         static u8 rs_err_cfg[]     = { RS_ERR_PER_1, 0x00, 0x4d };
 512         static u8 capt_range_cfg[] = { CAPT_RANGE, 0x32 };
 513         static u8 trl_nom_cfg[]    = { TRL_NOMINAL_RATE_1, 0x64, 0x00 };
 514         static u8 tps_given_cfg[]  = { TPS_GIVEN_1, 0x40, 0x80, 0x50 };
 515         static u8 tuner_go[]       = { TUNER_GO, 0x01};
 516
 517         mt352_write(fe, clock_config,   sizeof(clock_config));
 518         udelay(200);
 519         mt352_write(fe, reset,          sizeof(reset));
 520         mt352_write(fe, adc_ctl_1_cfg,  sizeof(adc_ctl_1_cfg));
 521         mt352_write(fe, agc_cfg,        sizeof(agc_cfg));
 522         mt352_write(fe, input_freq_cfg, sizeof(input_freq_cfg));
 523         mt352_write(fe, rs_err_cfg,     sizeof(rs_err_cfg));
 524         mt352_write(fe, capt_range_cfg, sizeof(capt_range_cfg));
 525         mt352_write(fe, trl_nom_cfg,    sizeof(trl_nom_cfg));
 526         mt352_write(fe, tps_given_cfg,  sizeof(tps_given_cfg));
 527         mt352_write(fe, tuner_go,       sizeof(tuner_go));
 528         return 0;
 529 }
 530
 531 static struct mt352_config terratec_xs_mt352_cfg = {
 532         .demod_address = (0x1e >> 1),
 533         .no_tuner = 1,
 534         .if2 = 45600,
 535         .demod_init = em28xx_mt352_terratec_xs_init,
 536 };
 537
 538 static struct tda10023_config em28xx_tda10023_config = {
 539         .demod_address = 0x0c,
 540         .invert = 1,
 541 };
 542
 543 static struct cxd2820r_config em28xx_cxd2820r_config = {
 544         .i2c_address = (0xd8 >> 1),
 545         .ts_mode = CXD2820R_TS_SERIAL,
 546
 547         /* enable LNA for DVB-T, DVB-T2 and DVB-C */
 548         .gpio_dvbt[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 549         .gpio_dvbt2[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 550         .gpio_dvbc[0] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | CXD2820R_GPIO_L,
 551 };
 552
 553 static struct tda18271_config em28xx_cxd2820r_tda18271_config = {
 554         .output_opt = TDA18271_OUTPUT_LT_OFF,
 555         .gate = TDA18271_GATE_DIGITAL,
 556 };
 557
 558 static const struct tda10071_config em28xx_tda10071_config = {
 559         .i2c_address = 0x55, /* (0xaa >> 1) */
 560         .i2c_wr_max = 64,
 561         .ts_mode = TDA10071_TS_SERIAL,
 562         .spec_inv = 0,
 563         .xtal = 40444000, /* 40.444 MHz */
 564         .pll_multiplier = 20,
 565 };
 566
 567 static const struct a8293_config em28xx_a8293_config = {
 568         .i2c_addr = 0x08, /* (0x10 >> 1) */
 569 };
 570
 571 static struct zl10353_config em28xx_zl10353_no_i2c_gate_dev = {
 572         .demod_address = (0x1e >> 1),
 573         .disable_i2c_gate_ctrl = 1,
 574         .no_tuner = 1,
 575         .parallel_ts = 1,
 576 };
 577 static struct qt1010_config em28xx_qt1010_config = {
 578         .i2c_address = 0x62
 579
 580 };
 581
 582 /* ------------------------------------------------------------------ */
 583
 584 static int em28xx_attach_xc3028(u8 addr, struct em28xx *dev)
 585 {
 586         struct dvb_frontend *fe;
 587         struct xc2028_config cfg;
 588
 589         memset(&cfg, 0, sizeof(cfg));
 590         cfg.i2c_adap  = &dev->i2c_adap;
 591         cfg.i2c_addr  = addr;
 592
 593         if (!dev->dvb->fe[0]) {
 594                 em28xx_errdev("/2: dvb frontend not attached. "
 595                                 "Can't attach xc3028\n");
 596                 return -EINVAL;
 597         }
 598
 599         fe = dvb_attach(xc2028_attach, dev->dvb->fe[0], &cfg);
 600         if (!fe) {
 601                 em28xx_errdev("/2: xc3028 attach failed\n");
 602                 dvb_frontend_detach(dev->dvb->fe[0]);
 603                 dev->dvb->fe[0] = NULL;
 604                 return -EINVAL;
 605         }
 606
 607         em28xx_info("%s/2: xc3028 attached\n", dev->name);
 608
 609         return 0;
 610 }
 611
 612 /* ------------------------------------------------------------------ */
 613
 614 static int em28xx_register_dvb(struct em28xx_dvb *dvb, struct module *module,
 615                                struct em28xx *dev, struct device *device)
 616 {
 617         int result;
 618
 619         mutex_init(&dvb->lock);
 620
 621         /* register adapter */
 622         result = dvb_register_adapter(&dvb->adapter, dev->name, module, device,
 623                                       adapter_nr);
 624         if (result < 0) {
 625                 printk(KERN_WARNING "%s: dvb_register_adapter failed (errno = %d)\n",
 626                        dev->name, result);
 627                 goto fail_adapter;
 628         }
 629
 630         /* Ensure all frontends negotiate bus access */
 631         dvb->fe[0]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 632         if (dvb->fe[1])
 633                 dvb->fe[1]->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
 634
 635         dvb->adapter.priv = dev;
 636
 637         /* register frontend */
 638         result = dvb_register_frontend(&dvb->adapter, dvb->fe[0]);
 639         if (result < 0) {
 640                 printk(KERN_WARNING "%s: dvb_register_frontend failed (errno = %d)\n",
 641                        dev->name, result);
 642                 goto fail_frontend0;
 643         }
 644
 645         /* register 2nd frontend */
 646         if (dvb->fe[1]) {
 647                 result = dvb_register_frontend(&dvb->adapter, dvb->fe[1]);
 648                 if (result < 0) {
 649                         printk(KERN_WARNING "%s: 2nd dvb_register_frontend failed (errno = %d)\n",
 650                                 dev->name, result);
 651                         goto fail_frontend1;
 652                 }
 653         }
 654
 655         /* register demux stuff */
 656         dvb->demux.dmx.capabilities =
 657                 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
 658                 DMX_MEMORY_BASED_FILTERING;
 659         dvb->demux.priv       = dvb;
 660         dvb->demux.filternum  = 256;
 661         dvb->demux.feednum    = 256;
 662         dvb->demux.start_feed = em28xx_start_feed;
 663         dvb->demux.stop_feed  = em28xx_stop_feed;
 664
 665         result = dvb_dmx_init(&dvb->demux);
 666         if (result < 0) {
 667                 printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",
 668                        dev->name, result);
 669                 goto fail_dmx;
 670         }
 671
 672         dvb->dmxdev.filternum    = 256;
 673         dvb->dmxdev.demux        = &dvb->demux.dmx;
 674         dvb->dmxdev.capabilities = 0;
 675         result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
 676         if (result < 0) {
 677                 printk(KERN_WARNING "%s: dvb_dmxdev_init failed (errno = %d)\n",
 678                        dev->name, result);
 679                 goto fail_dmxdev;
 680         }
 681
 682         dvb->fe_hw.source = DMX_FRONTEND_0;
 683         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 684         if (result < 0) {
 685                 printk(KERN_WARNING "%s: add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
 686                        dev->name, result);
 687                 goto fail_fe_hw;
 688         }
 689
 690         dvb->fe_mem.source = DMX_MEMORY_FE;
 691         result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 692         if (result < 0) {
 693                 printk(KERN_WARNING "%s: add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
 694                        dev->name, result);
 695                 goto fail_fe_mem;
 696         }
 697
 698         result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 699         if (result < 0) {
 700                 printk(KERN_WARNING "%s: connect_frontend failed (errno = %d)\n",
 701                        dev->name, result);
 702                 goto fail_fe_conn;
 703         }
 704
 705         /* register network adapter */
 706         dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
 707         return 0;
 708
 709 fail_fe_conn:
 710         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 711 fail_fe_mem:
 712         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 713 fail_fe_hw:
 714         dvb_dmxdev_release(&dvb->dmxdev);
 715 fail_dmxdev:
 716         dvb_dmx_release(&dvb->demux);
 717 fail_dmx:
 718         if (dvb->fe[1])
 719                 dvb_unregister_frontend(dvb->fe[1]);
 720         dvb_unregister_frontend(dvb->fe[0]);
 721 fail_frontend1:
 722         if (dvb->fe[1])
 723                 dvb_frontend_detach(dvb->fe[1]);
 724 fail_frontend0:
 725         dvb_frontend_detach(dvb->fe[0]);
 726         dvb_unregister_adapter(&dvb->adapter);
 727 fail_adapter:
 728         return result;
 729 }
 730
 731 static void em28xx_unregister_dvb(struct em28xx_dvb *dvb)
 732 {
 733         dvb_net_release(&dvb->net);
 734         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
 735         dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
 736         dvb_dmxdev_release(&dvb->dmxdev);
 737         dvb_dmx_release(&dvb->demux);
 738         if (dvb->fe[1])
 739                 dvb_unregister_frontend(dvb->fe[1]);
 740         dvb_unregister_frontend(dvb->fe[0]);
 741         if (dvb->fe[1] && !dvb->dont_attach_fe1)
 742                 dvb_frontend_detach(dvb->fe[1]);
 743         dvb_frontend_detach(dvb->fe[0]);
 744         dvb_unregister_adapter(&dvb->adapter);
 745 }
 746
 747 static int em28xx_dvb_init(struct em28xx *dev)
 748 {
 749         int result = 0, mfe_shared = 0;
 750         struct em28xx_dvb *dvb;
 751
 752         if (!dev->board.has_dvb) {
 753                 /* This device does not support the extension */
 754                 printk(KERN_INFO "em28xx_dvb: This device does not support the extension\n");
 755                 return 0;
 756         }
 757
 758         dvb = kzalloc(sizeof(struct em28xx_dvb), GFP_KERNEL);
 759
 760         if (dvb == NULL) {
 761                 em28xx_info("em28xx_dvb: memory allocation failed\n");
 762                 return -ENOMEM;
 763         }
 764         dev->dvb = dvb;
 765         dvb->fe[0] = dvb->fe[1] = NULL;
 766
 767         mutex_lock(&dev->lock);
 768         em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
 769         /* init frontend */
 770         switch (dev->model) {
 771         case EM2874_BOARD_LEADERSHIP_ISDBT:
 772                 dvb->fe[0] = dvb_attach(s921_attach,
 773                                 &sharp_isdbt, &dev->i2c_adap);
 774
 775                 if (!dvb->fe[0]) {
 776                         result = -EINVAL;
 777                         goto out_free;
 778                 }
 779
 780                 break;
 781         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850:
 782         case EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950:
 783         case EM2880_BOARD_PINNACLE_PCTV_HD_PRO:
 784         case EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600:
 785                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 786                                            &em2880_lgdt3303_dev,
 787                                            &dev->i2c_adap);
 788                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 789                         result = -EINVAL;
 790                         goto out_free;
 791                 }
 792                 break;
 793         case EM2880_BOARD_KWORLD_DVB_310U:
 794                 dvb->fe[0] = dvb_attach(zl10353_attach,
 795                                            &em28xx_zl10353_with_xc3028,
 796                                            &dev->i2c_adap);
 797                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 798                         result = -EINVAL;
 799                         goto out_free;
 800                 }
 801                 break;
 802         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900:
 803         case EM2882_BOARD_TERRATEC_HYBRID_XS:
 804         case EM2880_BOARD_EMPIRE_DUAL_TV:
 805                 dvb->fe[0] = dvb_attach(zl10353_attach,
 806                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 807                                            &dev->i2c_adap);
 808                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 809                         result = -EINVAL;
 810                         goto out_free;
 811                 }
 812                 break;
 813         case EM2880_BOARD_TERRATEC_HYBRID_XS:
 814         case EM2880_BOARD_TERRATEC_HYBRID_XS_FR:
 815         case EM2881_BOARD_PINNACLE_HYBRID_PRO:
 816         case EM2882_BOARD_DIKOM_DK300:
 817         case EM2882_BOARD_KWORLD_VS_DVBT:
 818                 dvb->fe[0] = dvb_attach(zl10353_attach,
 819                                            &em28xx_zl10353_xc3028_no_i2c_gate,
 820                                            &dev->i2c_adap);
 821                 if (dvb->fe[0] == NULL) {
 822                         /* This board could have either a zl10353 or a mt352.
 823                            If the chip id isn't for zl10353, try mt352 */
 824                         dvb->fe[0] = dvb_attach(mt352_attach,
 825                                                    &terratec_xs_mt352_cfg,
 826                                                    &dev->i2c_adap);
 827                 }
 828
 829                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 830                         result = -EINVAL;
 831                         goto out_free;
 832                 }
 833                 break;
 834         case EM2870_BOARD_KWORLD_355U:
 835                 dvb->fe[0] = dvb_attach(zl10353_attach,
 836                                            &em28xx_zl10353_no_i2c_gate_dev,
 837                                            &dev->i2c_adap);
 838                 if (dvb->fe[0] != NULL)
 839                         dvb_attach(qt1010_attach, dvb->fe[0],
 840                                    &dev->i2c_adap, &em28xx_qt1010_config);
 841                 break;
 842         case EM2883_BOARD_KWORLD_HYBRID_330U:
 843         case EM2882_BOARD_EVGA_INDTUBE:
 844                 dvb->fe[0] = dvb_attach(s5h1409_attach,
 845                                            &em28xx_s5h1409_with_xc3028,
 846                                            &dev->i2c_adap);
 847                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 848                         result = -EINVAL;
 849                         goto out_free;
 850                 }
 851                 break;
 852         case EM2882_BOARD_KWORLD_ATSC_315U:
 853                 dvb->fe[0] = dvb_attach(lgdt330x_attach,
 854                                            &em2880_lgdt3303_dev,
 855                                            &dev->i2c_adap);
 856                 if (dvb->fe[0] != NULL) {
 857                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 858                                 &dev->i2c_adap, 0x61, TUNER_THOMSON_DTT761X)) {
 859                                 result = -EINVAL;
 860                                 goto out_free;
 861                         }
 862                 }
 863                 break;
 864         case EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2:
 865         case EM2882_BOARD_PINNACLE_HYBRID_PRO_330E:
 866                 dvb->fe[0] = dvb_attach(drxd_attach, &em28xx_drxd, NULL,
 867                                            &dev->i2c_adap, &dev->udev->dev);
 868                 if (em28xx_attach_xc3028(0x61, dev) < 0) {
 869                         result = -EINVAL;
 870                         goto out_free;
 871                 }
 872                 break;
 873         case EM2870_BOARD_REDDO_DVB_C_USB_BOX:
 874                 /* Philips CU1216L NIM (Philips TDA10023 + Infineon TUA6034) */
 875                 dvb->fe[0] = dvb_attach(tda10023_attach,
 876                         &em28xx_tda10023_config,
 877                         &dev->i2c_adap, 0x48);
 878                 if (dvb->fe[0]) {
 879                         if (!dvb_attach(simple_tuner_attach, dvb->fe[0],
 880                                 &dev->i2c_adap, 0x60, TUNER_PHILIPS_CU1216L)) {
 881                                 result = -EINVAL;
 882                                 goto out_free;
 883                         }
 884                 }
 885                 break;
 886         case EM2870_BOARD_KWORLD_A340:
 887                 dvb->fe[0] = dvb_attach(lgdt3305_attach,
 888                                            &em2870_lgdt3304_dev,
 889                                            &dev->i2c_adap);
 890                 if (dvb->fe[0] != NULL)
 891                         dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
 892                                    &dev->i2c_adap, &kworld_a340_config);
 893                 break;
 894         case EM28174_BOARD_PCTV_290E:
 895                 dvb->fe[0] = dvb_attach(cxd2820r_attach,
 896                                         &em28xx_cxd2820r_config,
 897                                         &dev->i2c_adap);
 898                 if (dvb->fe[0]) {
 899                         /* FE 0 attach tuner */
 900                         if (!dvb_attach(tda18271_attach,
 901                                         dvb->fe[0],
 902                                         0x60,
 903                                         &dev->i2c_adap,
 904                                         &em28xx_cxd2820r_tda18271_config)) {
 905
 906                                 dvb_frontend_detach(dvb->fe[0]);
 907                                 result = -EINVAL;
 908                                 goto out_free;
 909                         }
 910                 }
 911                 break;
 912         case EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C:
 913         {
 914                 struct xc5000_config cfg;
 915                 hauppauge_hvr930c_init(dev);
 916
 917                 dvb->fe[0] = dvb_attach(drxk_attach,
 918                                         &hauppauge_930c_drxk, &dev->i2c_adap);
 919                 if (!dvb->fe[0]) {
 920                         result = -EINVAL;
 921                         goto out_free;
 922                 }
 923                 /* FIXME: do we need a pll semaphore? */
 924                 dvb->fe[0]->sec_priv = dvb;
 925                 sema_init(&dvb->pll_mutex, 1);
 926                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
 927                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
 928
 929                 /* Attach xc5000 */
 930                 memset(&cfg, 0, sizeof(cfg));
 931                 cfg.i2c_address  = 0x61;
 932                 cfg.if_khz = 4000;
 933
 934                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 935                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
 936                 if (!dvb_attach(xc5000_attach, dvb->fe[0], &dev->i2c_adap,
 937                                 &cfg)) {
 938                         result = -EINVAL;
 939                         goto out_free;
 940                 }
 941                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 942                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
 943
 944                 break;
 945         }
 946         case EM2884_BOARD_TERRATEC_H5:
 947         case EM2884_BOARD_CINERGY_HTC_STICK:
 948                 terratec_h5_init(dev);
 949
 950                 dvb->fe[0] = dvb_attach(drxk_attach, &terratec_h5_drxk, &dev->i2c_adap);
 951                 if (!dvb->fe[0]) {
 952                         result = -EINVAL;
 953                         goto out_free;
 954                 }
 955                 /* FIXME: do we need a pll semaphore? */
 956                 dvb->fe[0]->sec_priv = dvb;
 957                 sema_init(&dvb->pll_mutex, 1);
 958                 dvb->gate_ctrl = dvb->fe[0]->ops.i2c_gate_ctrl;
 959                 dvb->fe[0]->ops.i2c_gate_ctrl = drxk_gate_ctrl;
 960
 961                 /* Attach tda18271 to DVB-C frontend */
 962                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 963                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 1);
 964                 if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0], &dev->i2c_adap, 0x60)) {
 965                         result = -EINVAL;
 966                         goto out_free;
 967                 }
 968                 if (dvb->fe[0]->ops.i2c_gate_ctrl)
 969                         dvb->fe[0]->ops.i2c_gate_ctrl(dvb->fe[0], 0);
 970
 971                 break;
 972         case EM28174_BOARD_PCTV_460E:
 973                 /* attach demod */
 974                 dvb->fe[0] = dvb_attach(tda10071_attach,
 975                         &em28xx_tda10071_config, &dev->i2c_adap);
 976
 977                 /* attach SEC */
 978                 if (dvb->fe[0])
 979                         dvb_attach(a8293_attach, dvb->fe[0], &dev->i2c_adap,
 980                                 &em28xx_a8293_config);
 981                 break;
 982         case EM2874_BOARD_MAXMEDIA_UB425_TC:
 983                 /* attach demodulator */
 984                 dvb->fe[0] = dvb_attach(drxk_attach, &maxmedia_ub425_tc_drxk,
 985                                 &dev->i2c_adap);
 986
 987                 if (dvb->fe[0]) {
 988                         /* disable I2C-gate */
 989                         dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
 990
 991                         /* attach tuner */
 992                         if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
 993                                         &dev->i2c_adap, 0x60)) {
 994                                 dvb_frontend_detach(dvb->fe[0]);
 995                                 result = -EINVAL;
 996                                 goto out_free;
 997                         }
 998                 }
 999
1000                 /* TODO: we need drx-3913k firmware in order to support DVB-T */
1001                 em28xx_info("MaxMedia UB425-TC: only DVB-C supported by that " \
1002                                 "driver version\n");
1003
1004                 break;
1005         case EM2884_BOARD_PCTV_510E:
1006         case EM2884_BOARD_PCTV_520E:
1007                 pctv_520e_init(dev);
1008
1009                 /* attach demodulator */
1010                 dvb->fe[0] = dvb_attach(drxk_attach, &pctv_520e_drxk,
1011                                 &dev->i2c_adap);
1012
1013                 if (dvb->fe[0]) {
1014                         /* attach tuner */
1015                         if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
1016                                         &dev->i2c_adap,
1017                                         &em28xx_cxd2820r_tda18271_config)) {
1018                                 dvb_frontend_detach(dvb->fe[0]);
1019                                 result = -EINVAL;
1020                                 goto out_free;
1021                         }
1022                 }
1023                 break;
1024         default:
1025                 em28xx_errdev("/2: The frontend of your DVB/ATSC card"
1026                                 " isn't supported yet\n");
1027                 break;
1028         }
1029         if (NULL == dvb->fe[0]) {
1030                 em28xx_errdev("/2: frontend initialization failed\n");
1031                 result = -EINVAL;
1032                 goto out_free;
1033         }
1034         /* define general-purpose callback pointer */
1035         dvb->fe[0]->callback = em28xx_tuner_callback;
1036         if (dvb->fe[1])
1037                 dvb->fe[1]->callback = em28xx_tuner_callback;
1038
1039         /* register everything */
1040         result = em28xx_register_dvb(dvb, THIS_MODULE, dev, &dev->udev->dev);
1041
1042         if (result < 0)
1043                 goto out_free;
1044
1045         /* MFE lock */
1046         dvb->adapter.mfe_shared = mfe_shared;
1047
1048         em28xx_info("Successfully loaded em28xx-dvb\n");
1049 ret:
1050         em28xx_set_mode(dev, EM28XX_SUSPEND);
1051         mutex_unlock(&dev->lock);
1052         return result;
1053
1054 out_free:
1055         kfree(dvb);
1056         dev->dvb = NULL;
1057         goto ret;
1058 }
1059
1060 static inline void prevent_sleep(struct dvb_frontend_ops *ops)
1061 {
1062         ops->set_voltage = NULL;
1063         ops->sleep = NULL;
1064         ops->tuner_ops.sleep = NULL;
1065 }
1066
1067 static int em28xx_dvb_fini(struct em28xx *dev)
1068 {
1069         if (!dev->board.has_dvb) {
1070                 /* This device does not support the extension */
1071                 return 0;
1072         }
1073
1074         if (dev->dvb) {
1075                 struct em28xx_dvb *dvb = dev->dvb;
1076
1077                 if (dev->state & DEV_DISCONNECTED) {
1078                         /* We cannot tell the device to sleep
1079                          * once it has been unplugged. */
1080                         if (dvb->fe[0])
1081                                 prevent_sleep(&dvb->fe[0]->ops);
1082                         if (dvb->fe[1])
1083                                 prevent_sleep(&dvb->fe[1]->ops);
1084                 }
1085
1086                 em28xx_unregister_dvb(dvb);
1087                 kfree(dvb);
1088                 dev->dvb = NULL;
1089         }
1090
1091         return 0;
1092 }
1093
1094 static struct em28xx_ops dvb_ops = {
1095         .id   = EM28XX_DVB,
1096         .name = "Em28xx dvb Extension",
1097         .init = em28xx_dvb_init,
1098         .fini = em28xx_dvb_fini,
1099 };
1100
1101 static int __init em28xx_dvb_register(void)
1102 {
1103         return em28xx_register_extension(&dvb_ops);
1104 }
1105
1106 static void __exit em28xx_dvb_unregister(void)
1107 {
1108         em28xx_unregister_extension(&dvb_ops);
1109 }
1110
1111 module_init(em28xx_dvb_register);
1112 module_exit(em28xx_dvb_unregister);