git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/cx23885/cx23885-dvb.c

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  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 <linux/module.h>
  23 #include <linux/init.h>
  24 #include <linux/device.h>
  25 #include <linux/fs.h>
  26 #include <linux/kthread.h>
  27 #include <linux/file.h>
  28 #include <linux/suspend.h>
  29
  30 #include "cx23885.h"
  31 #include <media/v4l2-common.h>
  32
  33 #include "s5h1409.h"
  34 #include "s5h1411.h"
  35 #include "mt2131.h"
  36 #include "tda8290.h"
  37 #include "tda18271.h"
  38 #include "lgdt330x.h"
  39 #include "xc5000.h"
  40 #include "tda10048.h"
  41 #include "tuner-xc2028.h"
  42 #include "tuner-simple.h"
  43 #include "dib7000p.h"
  44 #include "dibx000_common.h"
  45
  46 static unsigned int debug;
  47
  48 #define dprintk(level, fmt, arg...)\
  49         do { if (debug >= level)\
  50                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  51         } while (0)
  52
  53 /* ------------------------------------------------------------------ */
  54
  55 static unsigned int alt_tuner;
  56 module_param(alt_tuner, int, 0644);
  57 MODULE_PARM_DESC(alt_tuner, "Enable alternate tuner configuration");
  58
  59 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  60
  61 /* ------------------------------------------------------------------ */
  62
  63 static int dvb_buf_setup(struct videobuf_queue *q,
  64                          unsigned int *count, unsigned int *size)
  65 {
  66         struct cx23885_tsport *port = q->priv_data;
  67
  68         port->ts_packet_size  = 188 * 4;
  69         port->ts_packet_count = 32;
  70
  71         *size  = port->ts_packet_size * port->ts_packet_count;
  72         *count = 32;
  73         return 0;
  74 }
  75
  76 static int dvb_buf_prepare(struct videobuf_queue *q,
  77                            struct videobuf_buffer *vb, enum v4l2_field field)
  78 {
  79         struct cx23885_tsport *port = q->priv_data;
  80         return cx23885_buf_prepare(q, port, (struct cx23885_buffer*)vb, field);
  81 }
  82
  83 static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
  84 {
  85         struct cx23885_tsport *port = q->priv_data;
  86         cx23885_buf_queue(port, (struct cx23885_buffer*)vb);
  87 }
  88
  89 static void dvb_buf_release(struct videobuf_queue *q,
  90                             struct videobuf_buffer *vb)
  91 {
  92         cx23885_free_buffer(q, (struct cx23885_buffer*)vb);
  93 }
  94
  95 static struct videobuf_queue_ops dvb_qops = {
  96         .buf_setup    = dvb_buf_setup,
  97         .buf_prepare  = dvb_buf_prepare,
  98         .buf_queue    = dvb_buf_queue,
  99         .buf_release  = dvb_buf_release,
 100 };
 101
 102 static struct s5h1409_config hauppauge_generic_config = {
 103         .demod_address = 0x32 >> 1,
 104         .output_mode   = S5H1409_SERIAL_OUTPUT,
 105         .gpio          = S5H1409_GPIO_ON,
 106         .qam_if        = 44000,
 107         .inversion     = S5H1409_INVERSION_OFF,
 108         .status_mode   = S5H1409_DEMODLOCKING,
 109         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 110 };
 111
 112 static struct tda10048_config hauppauge_hvr1200_config = {
 113         .demod_address    = 0x10 >> 1,
 114         .output_mode      = TDA10048_SERIAL_OUTPUT,
 115         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
 116         .inversion        = TDA10048_INVERSION_ON
 117 };
 118
 119 static struct s5h1409_config hauppauge_ezqam_config = {
 120         .demod_address = 0x32 >> 1,
 121         .output_mode   = S5H1409_SERIAL_OUTPUT,
 122         .gpio          = S5H1409_GPIO_OFF,
 123         .qam_if        = 4000,
 124         .inversion     = S5H1409_INVERSION_ON,
 125         .status_mode   = S5H1409_DEMODLOCKING,
 126         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 127 };
 128
 129 static struct s5h1409_config hauppauge_hvr1800lp_config = {
 130         .demod_address = 0x32 >> 1,
 131         .output_mode   = S5H1409_SERIAL_OUTPUT,
 132         .gpio          = S5H1409_GPIO_OFF,
 133         .qam_if        = 44000,
 134         .inversion     = S5H1409_INVERSION_OFF,
 135         .status_mode   = S5H1409_DEMODLOCKING,
 136         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 137 };
 138
 139 static struct s5h1409_config hauppauge_hvr1500_config = {
 140         .demod_address = 0x32 >> 1,
 141         .output_mode   = S5H1409_SERIAL_OUTPUT,
 142         .gpio          = S5H1409_GPIO_OFF,
 143         .inversion     = S5H1409_INVERSION_OFF,
 144         .status_mode   = S5H1409_DEMODLOCKING,
 145         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 146 };
 147
 148 static struct mt2131_config hauppauge_generic_tunerconfig = {
 149         0x61
 150 };
 151
 152 static struct lgdt330x_config fusionhdtv_5_express = {
 153         .demod_address = 0x0e,
 154         .demod_chip = LGDT3303,
 155         .serial_mpeg = 0x40,
 156 };
 157
 158 static struct s5h1409_config hauppauge_hvr1500q_config = {
 159         .demod_address = 0x32 >> 1,
 160         .output_mode   = S5H1409_SERIAL_OUTPUT,
 161         .gpio          = S5H1409_GPIO_ON,
 162         .qam_if        = 44000,
 163         .inversion     = S5H1409_INVERSION_OFF,
 164         .status_mode   = S5H1409_DEMODLOCKING,
 165         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 166 };
 167
 168 static struct s5h1409_config dvico_s5h1409_config = {
 169         .demod_address = 0x32 >> 1,
 170         .output_mode   = S5H1409_SERIAL_OUTPUT,
 171         .gpio          = S5H1409_GPIO_ON,
 172         .qam_if        = 44000,
 173         .inversion     = S5H1409_INVERSION_OFF,
 174         .status_mode   = S5H1409_DEMODLOCKING,
 175         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 176 };
 177
 178 static struct s5h1411_config dvico_s5h1411_config = {
 179         .output_mode   = S5H1411_SERIAL_OUTPUT,
 180         .gpio          = S5H1411_GPIO_ON,
 181         .qam_if        = S5H1411_IF_44000,
 182         .vsb_if        = S5H1411_IF_44000,
 183         .inversion     = S5H1411_INVERSION_OFF,
 184         .status_mode   = S5H1411_DEMODLOCKING,
 185         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 186 };
 187
 188 static struct xc5000_config hauppauge_hvr1500q_tunerconfig = {
 189         .i2c_address      = 0x61,
 190         .if_khz           = 5380,
 191         .tuner_callback   = cx23885_xc5000_tuner_callback,
 192 };
 193
 194 static struct xc5000_config dvico_xc5000_tunerconfig = {
 195         .i2c_address      = 0x64,
 196         .if_khz           = 5380,
 197         .tuner_callback   = cx23885_xc5000_tuner_callback,
 198 };
 199
 200 static struct tda829x_config tda829x_no_probe = {
 201         .probe_tuner = TDA829X_DONT_PROBE,
 202 };
 203
 204 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 205         .atsc_6   = { .if_freq = 5380, .agc_mode = 3, .std = 3,
 206                       .if_lvl = 6, .rfagc_top = 0x37 },
 207         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
 208                       .if_lvl = 6, .rfagc_top = 0x37 },
 209 };
 210
 211 static struct tda18271_config hauppauge_tda18271_config = {
 212         .std_map = &hauppauge_tda18271_std_map,
 213         .gate    = TDA18271_GATE_ANALOG,
 214 };
 215
 216 static struct tda18271_config hauppauge_hvr1200_tuner_config = {
 217         .gate    = TDA18271_GATE_ANALOG,
 218 };
 219
 220 static struct dibx000_agc_config xc3028_agc_config = {
 221         BAND_VHF | BAND_UHF,    /* band_caps */
 222
 223         /* P_agc_use_sd_mod1=0, P_agc_use_sd_mod2=0, P_agc_freq_pwm_div=0,
 224          * P_agc_inv_pwm1=0, P_agc_inv_pwm2=0,
 225          * P_agc_inh_dc_rv_est=0, P_agc_time_est=3, P_agc_freeze=0,
 226          * P_agc_nb_est=2, P_agc_write=0
 227          */
 228         (0 << 15) | (0 << 14) | (0 << 11) | (0 << 10) | (0 << 9) | (0 << 8) |
 229                 (3 << 5) | (0 << 4) | (2 << 1) | (0 << 0), /* setup */
 230
 231         712,    /* inv_gain */
 232         21,     /* time_stabiliz */
 233
 234         0,      /* alpha_level */
 235         118,    /* thlock */
 236
 237         0,      /* wbd_inv */
 238         2867,   /* wbd_ref */
 239         0,      /* wbd_sel */
 240         2,      /* wbd_alpha */
 241
 242         0,      /* agc1_max */
 243         0,      /* agc1_min */
 244         39718,  /* agc2_max */
 245         9930,   /* agc2_min */
 246         0,      /* agc1_pt1 */
 247         0,      /* agc1_pt2 */
 248         0,      /* agc1_pt3 */
 249         0,      /* agc1_slope1 */
 250         0,      /* agc1_slope2 */
 251         0,      /* agc2_pt1 */
 252         128,    /* agc2_pt2 */
 253         29,     /* agc2_slope1 */
 254         29,     /* agc2_slope2 */
 255
 256         17,     /* alpha_mant */
 257         27,     /* alpha_exp */
 258         23,     /* beta_mant */
 259         51,     /* beta_exp */
 260
 261         1,      /* perform_agc_softsplit */
 262 };
 263
 264 /* PLL Configuration for COFDM BW_MHz = 8.000000
 265  * With external clock = 30.000000 */
 266 static struct dibx000_bandwidth_config xc3028_bw_config = {
 267         60000,  /* internal */
 268         30000,  /* sampling */
 269         1,      /* pll_cfg: prediv */
 270         8,      /* pll_cfg: ratio */
 271         3,      /* pll_cfg: range */
 272         1,      /* pll_cfg: reset */
 273         0,      /* pll_cfg: bypass */
 274         0,      /* misc: refdiv */
 275         0,      /* misc: bypclk_div */
 276         1,      /* misc: IO_CLK_en_core */
 277         1,      /* misc: ADClkSrc */
 278         0,      /* misc: modulo */
 279         (3 << 14) | (1 << 12) | (524 << 0), /* sad_cfg: refsel, sel, freq_15k */
 280         (1 << 25) | 5816102, /* ifreq = 5.200000 MHz */
 281         20452225, /* timf */
 282         30000000  /* xtal_hz */
 283 };
 284
 285 static struct dib7000p_config hauppauge_hvr1400_dib7000_config = {
 286         .output_mpeg2_in_188_bytes = 1,
 287         .hostbus_diversity = 1,
 288         .tuner_is_baseband = 0,
 289         .update_lna  = NULL,
 290
 291         .agc_config_count = 1,
 292         .agc = &xc3028_agc_config,
 293         .bw  = &xc3028_bw_config,
 294
 295         .gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
 296         .gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,
 297         .gpio_pwm_pos = DIB7000P_GPIO_DEFAULT_PWM_POS,
 298
 299         .pwm_freq_div = 0,
 300         .agc_control  = NULL,
 301         .spur_protect = 0,
 302
 303         .output_mode = OUTMODE_MPEG2_SERIAL,
 304 };
 305
 306 static int cx23885_hvr1500_xc3028_callback(void *ptr, int command, int arg)
 307 {
 308         struct cx23885_tsport *port = ptr;
 309         struct cx23885_dev *dev = port->dev;
 310
 311         switch (command) {
 312         case XC2028_TUNER_RESET:
 313                 /* Send the tuner in then out of reset */
 314                 /* GPIO-2 xc3028 tuner */
 315                 dprintk(1, "%s: XC2028_TUNER_RESET %d\n", __func__, arg);
 316
 317                 cx_set(GP0_IO, 0x00040000);
 318                 cx_clear(GP0_IO, 0x00000004);
 319                 msleep(5);
 320
 321                 cx_set(GP0_IO, 0x00040004);
 322                 msleep(5);
 323                 break;
 324         case XC2028_RESET_CLK:
 325                 dprintk(1, "%s: XC2028_RESET_CLK %d\n", __func__, arg);
 326                 break;
 327         default:
 328                 dprintk(1, "%s: unknown command %d, arg %d\n", __func__,
 329                         command, arg);
 330                 return -EINVAL;
 331         }
 332
 333         return 0;
 334 }
 335
 336 static int dvb_register(struct cx23885_tsport *port)
 337 {
 338         struct cx23885_dev *dev = port->dev;
 339         struct cx23885_i2c *i2c_bus = NULL;
 340
 341         /* init struct videobuf_dvb */
 342         port->dvb.name = dev->name;
 343
 344         /* init frontend */
 345         switch (dev->board) {
 346         case CX23885_BOARD_HAUPPAUGE_HVR1250:
 347                 i2c_bus = &dev->i2c_bus[0];
 348                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 349                                                 &hauppauge_generic_config,
 350                                                 &i2c_bus->i2c_adap);
 351                 if (port->dvb.frontend != NULL) {
 352                         dvb_attach(mt2131_attach, port->dvb.frontend,
 353                                    &i2c_bus->i2c_adap,
 354                                    &hauppauge_generic_tunerconfig, 0);
 355                 }
 356                 break;
 357         case CX23885_BOARD_HAUPPAUGE_HVR1800:
 358                 i2c_bus = &dev->i2c_bus[0];
 359                 switch (alt_tuner) {
 360                 case 1:
 361                         port->dvb.frontend =
 362                                 dvb_attach(s5h1409_attach,
 363                                            &hauppauge_ezqam_config,
 364                                            &i2c_bus->i2c_adap);
 365                         if (port->dvb.frontend != NULL) {
 366                                 dvb_attach(tda829x_attach, port->dvb.frontend,
 367                                            &dev->i2c_bus[1].i2c_adap, 0x42,
 368                                            &tda829x_no_probe);
 369                                 dvb_attach(tda18271_attach, port->dvb.frontend,
 370                                            0x60, &dev->i2c_bus[1].i2c_adap,
 371                                            &hauppauge_tda18271_config);
 372                         }
 373                         break;
 374                 case 0:
 375                 default:
 376                         port->dvb.frontend =
 377                                 dvb_attach(s5h1409_attach,
 378                                            &hauppauge_generic_config,
 379                                            &i2c_bus->i2c_adap);
 380                         if (port->dvb.frontend != NULL)
 381                                 dvb_attach(mt2131_attach, port->dvb.frontend,
 382                                            &i2c_bus->i2c_adap,
 383                                            &hauppauge_generic_tunerconfig, 0);
 384                         break;
 385                 }
 386                 break;
 387         case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
 388                 i2c_bus = &dev->i2c_bus[0];
 389                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 390                                                 &hauppauge_hvr1800lp_config,
 391                                                 &i2c_bus->i2c_adap);
 392                 if (port->dvb.frontend != NULL) {
 393                         dvb_attach(mt2131_attach, port->dvb.frontend,
 394                                    &i2c_bus->i2c_adap,
 395                                    &hauppauge_generic_tunerconfig, 0);
 396                 }
 397                 break;
 398         case CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP:
 399                 i2c_bus = &dev->i2c_bus[0];
 400                 port->dvb.frontend = dvb_attach(lgdt330x_attach,
 401                                                 &fusionhdtv_5_express,
 402                                                 &i2c_bus->i2c_adap);
 403                 if (port->dvb.frontend != NULL) {
 404                         dvb_attach(simple_tuner_attach, port->dvb.frontend,
 405                                    &i2c_bus->i2c_adap, 0x61,
 406                                    TUNER_LG_TDVS_H06XF);
 407                 }
 408                 break;
 409         case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
 410                 i2c_bus = &dev->i2c_bus[1];
 411                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 412                                                 &hauppauge_hvr1500q_config,
 413                                                 &dev->i2c_bus[0].i2c_adap);
 414                 if (port->dvb.frontend != NULL)
 415                         dvb_attach(xc5000_attach, port->dvb.frontend,
 416                                 &i2c_bus->i2c_adap,
 417                                 &hauppauge_hvr1500q_tunerconfig, i2c_bus);
 418                 break;
 419         case CX23885_BOARD_HAUPPAUGE_HVR1500:
 420                 i2c_bus = &dev->i2c_bus[1];
 421                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 422                                                 &hauppauge_hvr1500_config,
 423                                                 &dev->i2c_bus[0].i2c_adap);
 424                 if (port->dvb.frontend != NULL) {
 425                         struct dvb_frontend *fe;
 426                         struct xc2028_config cfg = {
 427                                 .i2c_adap  = &i2c_bus->i2c_adap,
 428                                 .i2c_addr  = 0x61,
 429                                 .callback  = cx23885_hvr1500_xc3028_callback,
 430                         };
 431                         static struct xc2028_ctrl ctl = {
 432                                 .fname       = "xc3028-v27.fw",
 433                                 .max_len     = 64,
 434                                 .scode_table = XC3028_FE_OREN538,
 435                         };
 436
 437                         fe = dvb_attach(xc2028_attach,
 438                                         port->dvb.frontend, &cfg);
 439                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 440                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 441                 }
 442                 break;
 443         case CX23885_BOARD_HAUPPAUGE_HVR1200:
 444         case CX23885_BOARD_HAUPPAUGE_HVR1700:
 445                 i2c_bus = &dev->i2c_bus[0];
 446                 port->dvb.frontend = dvb_attach(tda10048_attach,
 447                         &hauppauge_hvr1200_config,
 448                         &i2c_bus->i2c_adap);
 449                 if (port->dvb.frontend != NULL) {
 450                         dvb_attach(tda829x_attach, port->dvb.frontend,
 451                                 &dev->i2c_bus[1].i2c_adap, 0x42,
 452                                 &tda829x_no_probe);
 453                         dvb_attach(tda18271_attach, port->dvb.frontend,
 454                                 0x60, &dev->i2c_bus[1].i2c_adap,
 455                                 &hauppauge_hvr1200_tuner_config);
 456                 }
 457                 break;
 458         case CX23885_BOARD_HAUPPAUGE_HVR1400:
 459                 i2c_bus = &dev->i2c_bus[0];
 460                 port->dvb.frontend = dvb_attach(dib7000p_attach,
 461                         &i2c_bus->i2c_adap,
 462                         0x12, &hauppauge_hvr1400_dib7000_config);
 463                 if (port->dvb.frontend != NULL) {
 464                         struct dvb_frontend *fe;
 465                         struct xc2028_config cfg = {
 466                                 .i2c_adap  = &dev->i2c_bus[1].i2c_adap,
 467                                 .i2c_addr  = 0x64,
 468                                 .callback  = cx23885_hvr1500_xc3028_callback,
 469                         };
 470                         static struct xc2028_ctrl ctl = {
 471                                 .fname   = "xc3028L-v36.fw",
 472                                 .max_len = 64,
 473                                 .demod   = 5000,
 474                                 .d2633   = 1
 475                         };
 476
 477                         fe = dvb_attach(xc2028_attach,
 478                                         port->dvb.frontend, &cfg);
 479                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 480                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 481                 }
 482                 break;
 483         case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
 484                 i2c_bus = &dev->i2c_bus[port->nr - 1];
 485
 486                 port->dvb.frontend = dvb_attach(s5h1409_attach,
 487                                                 &dvico_s5h1409_config,
 488                                                 &i2c_bus->i2c_adap);
 489                 if (port->dvb.frontend == NULL)
 490                         port->dvb.frontend = dvb_attach(s5h1411_attach,
 491                                                         &dvico_s5h1411_config,
 492                                                         &i2c_bus->i2c_adap);
 493                 if (port->dvb.frontend != NULL)
 494                         dvb_attach(xc5000_attach, port->dvb.frontend,
 495                                 &i2c_bus->i2c_adap,
 496                                 &dvico_xc5000_tunerconfig, i2c_bus);
 497                 break;
 498         default:
 499                 printk("%s: The frontend of your DVB/ATSC card isn't supported yet\n",
 500                        dev->name);
 501                 break;
 502         }
 503         if (NULL == port->dvb.frontend) {
 504                 printk("%s: frontend initialization failed\n", dev->name);
 505                 return -1;
 506         }
 507
 508         /* Put the analog decoder in standby to keep it quiet */
 509         cx23885_call_i2c_clients(i2c_bus, TUNER_SET_STANDBY, NULL);
 510
 511         if (port->dvb.frontend->ops.analog_ops.standby)
 512                 port->dvb.frontend->ops.analog_ops.standby(port->dvb.frontend);
 513
 514         /* register everything */
 515         return videobuf_dvb_register(&port->dvb, THIS_MODULE, port,
 516                                      &dev->pci->dev, adapter_nr);
 517 }
 518
 519 int cx23885_dvb_register(struct cx23885_tsport *port)
 520 {
 521         struct cx23885_dev *dev = port->dev;
 522         int err;
 523
 524         dprintk(1, "%s\n", __func__);
 525         dprintk(1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
 526                 dev->board,
 527                 dev->name,
 528                 dev->pci_bus,
 529                 dev->pci_slot);
 530
 531         err = -ENODEV;
 532
 533         /* dvb stuff */
 534         printk("%s: cx23885 based dvb card\n", dev->name);
 535         videobuf_queue_sg_init(&port->dvb.dvbq, &dvb_qops, &dev->pci->dev, &port->slock,
 536                             V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_TOP,
 537                             sizeof(struct cx23885_buffer), port);
 538         err = dvb_register(port);
 539         if (err != 0)
 540                 printk("%s() dvb_register failed err = %d\n", __func__, err);
 541
 542         return err;
 543 }
 544
 545 int cx23885_dvb_unregister(struct cx23885_tsport *port)
 546 {
 547         /* dvb */
 548         if(port->dvb.frontend)
 549                 videobuf_dvb_unregister(&port->dvb);
 550
 551         return 0;
 552 }
 553
 554 /*
 555  * Local variables:
 556  * c-basic-offset: 8
 557  * End:
 558  * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
 559 */