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 #include "zl10353.h"
  46
  47 static unsigned int debug;
  48
  49 #define dprintk(level, fmt, arg...)\
  50         do { if (debug >= level)\
  51                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  52         } while (0)
  53
  54 /* ------------------------------------------------------------------ */
  55
  56 static unsigned int alt_tuner;
  57 module_param(alt_tuner, int, 0644);
  58 MODULE_PARM_DESC(alt_tuner, "Enable alternate tuner configuration");
  59
  60 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  61
  62 /* ------------------------------------------------------------------ */
  63
  64 static int dvb_buf_setup(struct videobuf_queue *q,
  65                          unsigned int *count, unsigned int *size)
  66 {
  67         struct cx23885_tsport *port = q->priv_data;
  68
  69         port->ts_packet_size  = 188 * 4;
  70         port->ts_packet_count = 32;
  71
  72         *size  = port->ts_packet_size * port->ts_packet_count;
  73         *count = 32;
  74         return 0;
  75 }
  76
  77 static int dvb_buf_prepare(struct videobuf_queue *q,
  78                            struct videobuf_buffer *vb, enum v4l2_field field)
  79 {
  80         struct cx23885_tsport *port = q->priv_data;
  81         return cx23885_buf_prepare(q, port, (struct cx23885_buffer *)vb, field);
  82 }
  83
  84 static void dvb_buf_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
  85 {
  86         struct cx23885_tsport *port = q->priv_data;
  87         cx23885_buf_queue(port, (struct cx23885_buffer *)vb);
  88 }
  89
  90 static void dvb_buf_release(struct videobuf_queue *q,
  91                             struct videobuf_buffer *vb)
  92 {
  93         cx23885_free_buffer(q, (struct cx23885_buffer *)vb);
  94 }
  95
  96 static struct videobuf_queue_ops dvb_qops = {
  97         .buf_setup    = dvb_buf_setup,
  98         .buf_prepare  = dvb_buf_prepare,
  99         .buf_queue    = dvb_buf_queue,
 100         .buf_release  = dvb_buf_release,
 101 };
 102
 103 static struct s5h1409_config hauppauge_generic_config = {
 104         .demod_address = 0x32 >> 1,
 105         .output_mode   = S5H1409_SERIAL_OUTPUT,
 106         .gpio          = S5H1409_GPIO_ON,
 107         .qam_if        = 44000,
 108         .inversion     = S5H1409_INVERSION_OFF,
 109         .status_mode   = S5H1409_DEMODLOCKING,
 110         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 111 };
 112
 113 static struct tda10048_config hauppauge_hvr1200_config = {
 114         .demod_address    = 0x10 >> 1,
 115         .output_mode      = TDA10048_SERIAL_OUTPUT,
 116         .fwbulkwritelen   = TDA10048_BULKWRITE_200,
 117         .inversion        = TDA10048_INVERSION_ON
 118 };
 119
 120 static struct s5h1409_config hauppauge_ezqam_config = {
 121         .demod_address = 0x32 >> 1,
 122         .output_mode   = S5H1409_SERIAL_OUTPUT,
 123         .gpio          = S5H1409_GPIO_OFF,
 124         .qam_if        = 4000,
 125         .inversion     = S5H1409_INVERSION_ON,
 126         .status_mode   = S5H1409_DEMODLOCKING,
 127         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 128 };
 129
 130 static struct s5h1409_config hauppauge_hvr1800lp_config = {
 131         .demod_address = 0x32 >> 1,
 132         .output_mode   = S5H1409_SERIAL_OUTPUT,
 133         .gpio          = S5H1409_GPIO_OFF,
 134         .qam_if        = 44000,
 135         .inversion     = S5H1409_INVERSION_OFF,
 136         .status_mode   = S5H1409_DEMODLOCKING,
 137         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 138 };
 139
 140 static struct s5h1409_config hauppauge_hvr1500_config = {
 141         .demod_address = 0x32 >> 1,
 142         .output_mode   = S5H1409_SERIAL_OUTPUT,
 143         .gpio          = S5H1409_GPIO_OFF,
 144         .inversion     = S5H1409_INVERSION_OFF,
 145         .status_mode   = S5H1409_DEMODLOCKING,
 146         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 147 };
 148
 149 static struct mt2131_config hauppauge_generic_tunerconfig = {
 150         0x61
 151 };
 152
 153 static struct lgdt330x_config fusionhdtv_5_express = {
 154         .demod_address = 0x0e,
 155         .demod_chip = LGDT3303,
 156         .serial_mpeg = 0x40,
 157 };
 158
 159 static struct s5h1409_config hauppauge_hvr1500q_config = {
 160         .demod_address = 0x32 >> 1,
 161         .output_mode   = S5H1409_SERIAL_OUTPUT,
 162         .gpio          = S5H1409_GPIO_ON,
 163         .qam_if        = 44000,
 164         .inversion     = S5H1409_INVERSION_OFF,
 165         .status_mode   = S5H1409_DEMODLOCKING,
 166         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 167 };
 168
 169 static struct s5h1409_config dvico_s5h1409_config = {
 170         .demod_address = 0x32 >> 1,
 171         .output_mode   = S5H1409_SERIAL_OUTPUT,
 172         .gpio          = S5H1409_GPIO_ON,
 173         .qam_if        = 44000,
 174         .inversion     = S5H1409_INVERSION_OFF,
 175         .status_mode   = S5H1409_DEMODLOCKING,
 176         .mpeg_timing   = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 177 };
 178
 179 static struct s5h1411_config dvico_s5h1411_config = {
 180         .output_mode   = S5H1411_SERIAL_OUTPUT,
 181         .gpio          = S5H1411_GPIO_ON,
 182         .qam_if        = S5H1411_IF_44000,
 183         .vsb_if        = S5H1411_IF_44000,
 184         .inversion     = S5H1411_INVERSION_OFF,
 185         .status_mode   = S5H1411_DEMODLOCKING,
 186         .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
 187 };
 188
 189 static struct xc5000_config hauppauge_hvr1500q_tunerconfig = {
 190         .i2c_address      = 0x61,
 191         .if_khz           = 5380,
 192 };
 193
 194 static struct xc5000_config dvico_xc5000_tunerconfig = {
 195         .i2c_address      = 0x64,
 196         .if_khz           = 5380,
 197 };
 198
 199 static struct tda829x_config tda829x_no_probe = {
 200         .probe_tuner = TDA829X_DONT_PROBE,
 201 };
 202
 203 static struct tda18271_std_map hauppauge_tda18271_std_map = {
 204         .atsc_6   = { .if_freq = 5380, .agc_mode = 3, .std = 3,
 205                       .if_lvl = 6, .rfagc_top = 0x37 },
 206         .qam_6    = { .if_freq = 4000, .agc_mode = 3, .std = 0,
 207                       .if_lvl = 6, .rfagc_top = 0x37 },
 208 };
 209
 210 static struct tda18271_config hauppauge_tda18271_config = {
 211         .std_map = &hauppauge_tda18271_std_map,
 212         .gate    = TDA18271_GATE_ANALOG,
 213 };
 214
 215 static struct tda18271_config hauppauge_hvr1200_tuner_config = {
 216         .gate    = TDA18271_GATE_ANALOG,
 217 };
 218
 219 static struct dibx000_agc_config xc3028_agc_config = {
 220         BAND_VHF | BAND_UHF,    /* band_caps */
 221
 222         /* P_agc_use_sd_mod1=0, P_agc_use_sd_mod2=0, P_agc_freq_pwm_div=0,
 223          * P_agc_inv_pwm1=0, P_agc_inv_pwm2=0,
 224          * P_agc_inh_dc_rv_est=0, P_agc_time_est=3, P_agc_freeze=0,
 225          * P_agc_nb_est=2, P_agc_write=0
 226          */
 227         (0 << 15) | (0 << 14) | (0 << 11) | (0 << 10) | (0 << 9) | (0 << 8) |
 228                 (3 << 5) | (0 << 4) | (2 << 1) | (0 << 0), /* setup */
 229
 230         712,    /* inv_gain */
 231         21,     /* time_stabiliz */
 232
 233         0,      /* alpha_level */
 234         118,    /* thlock */
 235
 236         0,      /* wbd_inv */
 237         2867,   /* wbd_ref */
 238         0,      /* wbd_sel */
 239         2,      /* wbd_alpha */
 240
 241         0,      /* agc1_max */
 242         0,      /* agc1_min */
 243         39718,  /* agc2_max */
 244         9930,   /* agc2_min */
 245         0,      /* agc1_pt1 */
 246         0,      /* agc1_pt2 */
 247         0,      /* agc1_pt3 */
 248         0,      /* agc1_slope1 */
 249         0,      /* agc1_slope2 */
 250         0,      /* agc2_pt1 */
 251         128,    /* agc2_pt2 */
 252         29,     /* agc2_slope1 */
 253         29,     /* agc2_slope2 */
 254
 255         17,     /* alpha_mant */
 256         27,     /* alpha_exp */
 257         23,     /* beta_mant */
 258         51,     /* beta_exp */
 259
 260         1,      /* perform_agc_softsplit */
 261 };
 262
 263 /* PLL Configuration for COFDM BW_MHz = 8.000000
 264  * With external clock = 30.000000 */
 265 static struct dibx000_bandwidth_config xc3028_bw_config = {
 266         60000,  /* internal */
 267         30000,  /* sampling */
 268         1,      /* pll_cfg: prediv */
 269         8,      /* pll_cfg: ratio */
 270         3,      /* pll_cfg: range */
 271         1,      /* pll_cfg: reset */
 272         0,      /* pll_cfg: bypass */
 273         0,      /* misc: refdiv */
 274         0,      /* misc: bypclk_div */
 275         1,      /* misc: IO_CLK_en_core */
 276         1,      /* misc: ADClkSrc */
 277         0,      /* misc: modulo */
 278         (3 << 14) | (1 << 12) | (524 << 0), /* sad_cfg: refsel, sel, freq_15k */
 279         (1 << 25) | 5816102, /* ifreq = 5.200000 MHz */
 280         20452225, /* timf */
 281         30000000  /* xtal_hz */
 282 };
 283
 284 static struct dib7000p_config hauppauge_hvr1400_dib7000_config = {
 285         .output_mpeg2_in_188_bytes = 1,
 286         .hostbus_diversity = 1,
 287         .tuner_is_baseband = 0,
 288         .update_lna  = NULL,
 289
 290         .agc_config_count = 1,
 291         .agc = &xc3028_agc_config,
 292         .bw  = &xc3028_bw_config,
 293
 294         .gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
 295         .gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,
 296         .gpio_pwm_pos = DIB7000P_GPIO_DEFAULT_PWM_POS,
 297
 298         .pwm_freq_div = 0,
 299         .agc_control  = NULL,
 300         .spur_protect = 0,
 301
 302         .output_mode = OUTMODE_MPEG2_SERIAL,
 303 };
 304
 305 static struct zl10353_config dvico_fusionhdtv_xc3028 = {
 306         .demod_address = 0x0f,
 307         .if2           = 45600,
 308         .no_tuner      = 1,
 309 };
 310
 311 static int dvb_register(struct cx23885_tsport *port)
 312 {
 313         struct cx23885_dev *dev = port->dev;
 314         struct cx23885_i2c *i2c_bus = NULL;
 315         struct videobuf_dvb_frontend *fe0;
 316
 317         /* Get the first frontend */
 318         fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
 319         if (!fe0)
 320                 return -EINVAL;
 321
 322         /* init struct videobuf_dvb */
 323         fe0->dvb.name = dev->name;
 324
 325         /* init frontend */
 326         switch (dev->board) {
 327         case CX23885_BOARD_HAUPPAUGE_HVR1250:
 328                 i2c_bus = &dev->i2c_bus[0];
 329                 fe0->dvb.frontend = dvb_attach(s5h1409_attach,
 330                                                 &hauppauge_generic_config,
 331                                                 &i2c_bus->i2c_adap);
 332                 if (fe0->dvb.frontend != NULL) {
 333                         dvb_attach(mt2131_attach, fe0->dvb.frontend,
 334                                    &i2c_bus->i2c_adap,
 335                                    &hauppauge_generic_tunerconfig, 0);
 336                 }
 337                 break;
 338         case CX23885_BOARD_HAUPPAUGE_HVR1800:
 339                 i2c_bus = &dev->i2c_bus[0];
 340                 switch (alt_tuner) {
 341                 case 1:
 342                         fe0->dvb.frontend =
 343                                 dvb_attach(s5h1409_attach,
 344                                            &hauppauge_ezqam_config,
 345                                            &i2c_bus->i2c_adap);
 346                         if (fe0->dvb.frontend != NULL) {
 347                                 dvb_attach(tda829x_attach, fe0->dvb.frontend,
 348                                            &dev->i2c_bus[1].i2c_adap, 0x42,
 349                                            &tda829x_no_probe);
 350                                 dvb_attach(tda18271_attach, fe0->dvb.frontend,
 351                                            0x60, &dev->i2c_bus[1].i2c_adap,
 352                                            &hauppauge_tda18271_config);
 353                         }
 354                         break;
 355                 case 0:
 356                 default:
 357                         fe0->dvb.frontend =
 358                                 dvb_attach(s5h1409_attach,
 359                                            &hauppauge_generic_config,
 360                                            &i2c_bus->i2c_adap);
 361                         if (fe0->dvb.frontend != NULL)
 362                                 dvb_attach(mt2131_attach, fe0->dvb.frontend,
 363                                            &i2c_bus->i2c_adap,
 364                                            &hauppauge_generic_tunerconfig, 0);
 365                         break;
 366                 }
 367                 break;
 368         case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
 369                 i2c_bus = &dev->i2c_bus[0];
 370                 fe0->dvb.frontend = dvb_attach(s5h1409_attach,
 371                                                 &hauppauge_hvr1800lp_config,
 372                                                 &i2c_bus->i2c_adap);
 373                 if (fe0->dvb.frontend != NULL) {
 374                         dvb_attach(mt2131_attach, fe0->dvb.frontend,
 375                                    &i2c_bus->i2c_adap,
 376                                    &hauppauge_generic_tunerconfig, 0);
 377                 }
 378                 break;
 379         case CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP:
 380                 i2c_bus = &dev->i2c_bus[0];
 381                 fe0->dvb.frontend = dvb_attach(lgdt330x_attach,
 382                                                 &fusionhdtv_5_express,
 383                                                 &i2c_bus->i2c_adap);
 384                 if (fe0->dvb.frontend != NULL) {
 385                         dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
 386                                    &i2c_bus->i2c_adap, 0x61,
 387                                    TUNER_LG_TDVS_H06XF);
 388                 }
 389                 break;
 390         case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
 391                 i2c_bus = &dev->i2c_bus[1];
 392                 fe0->dvb.frontend = dvb_attach(s5h1409_attach,
 393                                                 &hauppauge_hvr1500q_config,
 394                                                 &dev->i2c_bus[0].i2c_adap);
 395                 if (fe0->dvb.frontend != NULL)
 396                         dvb_attach(xc5000_attach, fe0->dvb.frontend,
 397                                    &i2c_bus->i2c_adap,
 398                                    &hauppauge_hvr1500q_tunerconfig);
 399                 break;
 400         case CX23885_BOARD_HAUPPAUGE_HVR1500:
 401                 i2c_bus = &dev->i2c_bus[1];
 402                 fe0->dvb.frontend = dvb_attach(s5h1409_attach,
 403                                                 &hauppauge_hvr1500_config,
 404                                                 &dev->i2c_bus[0].i2c_adap);
 405                 if (fe0->dvb.frontend != NULL) {
 406                         struct dvb_frontend *fe;
 407                         struct xc2028_config cfg = {
 408                                 .i2c_adap  = &i2c_bus->i2c_adap,
 409                                 .i2c_addr  = 0x61,
 410                         };
 411                         static struct xc2028_ctrl ctl = {
 412                                 .fname       = XC2028_DEFAULT_FIRMWARE,
 413                                 .max_len     = 64,
 414                                 .scode_table = XC3028_FE_OREN538,
 415                         };
 416
 417                         fe = dvb_attach(xc2028_attach,
 418                                         fe0->dvb.frontend, &cfg);
 419                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 420                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 421                 }
 422                 break;
 423         case CX23885_BOARD_HAUPPAUGE_HVR1200:
 424         case CX23885_BOARD_HAUPPAUGE_HVR1700:
 425                 i2c_bus = &dev->i2c_bus[0];
 426                 fe0->dvb.frontend = dvb_attach(tda10048_attach,
 427                         &hauppauge_hvr1200_config,
 428                         &i2c_bus->i2c_adap);
 429                 if (fe0->dvb.frontend != NULL) {
 430                         dvb_attach(tda829x_attach, fe0->dvb.frontend,
 431                                 &dev->i2c_bus[1].i2c_adap, 0x42,
 432                                 &tda829x_no_probe);
 433                         dvb_attach(tda18271_attach, fe0->dvb.frontend,
 434                                 0x60, &dev->i2c_bus[1].i2c_adap,
 435                                 &hauppauge_hvr1200_tuner_config);
 436                 }
 437                 break;
 438         case CX23885_BOARD_HAUPPAUGE_HVR1400:
 439                 i2c_bus = &dev->i2c_bus[0];
 440                 fe0->dvb.frontend = dvb_attach(dib7000p_attach,
 441                         &i2c_bus->i2c_adap,
 442                         0x12, &hauppauge_hvr1400_dib7000_config);
 443                 if (fe0->dvb.frontend != NULL) {
 444                         struct dvb_frontend *fe;
 445                         struct xc2028_config cfg = {
 446                                 .i2c_adap  = &dev->i2c_bus[1].i2c_adap,
 447                                 .i2c_addr  = 0x64,
 448                         };
 449                         static struct xc2028_ctrl ctl = {
 450                                 .fname   = XC3028L_DEFAULT_FIRMWARE,
 451                                 .max_len = 64,
 452                                 .demod   = 5000,
 453                                 /* This is true for all demods with
 454                                         v36 firmware? */
 455                                 .type    = XC2028_D2633,
 456                         };
 457
 458                         fe = dvb_attach(xc2028_attach,
 459                                         fe0->dvb.frontend, &cfg);
 460                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 461                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 462                 }
 463                 break;
 464         case CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP:
 465                 i2c_bus = &dev->i2c_bus[port->nr - 1];
 466
 467                 fe0->dvb.frontend = dvb_attach(s5h1409_attach,
 468                                                 &dvico_s5h1409_config,
 469                                                 &i2c_bus->i2c_adap);
 470                 if (fe0->dvb.frontend == NULL)
 471                         fe0->dvb.frontend = dvb_attach(s5h1411_attach,
 472                                                         &dvico_s5h1411_config,
 473                                                         &i2c_bus->i2c_adap);
 474                 if (fe0->dvb.frontend != NULL)
 475                         dvb_attach(xc5000_attach, fe0->dvb.frontend,
 476                                    &i2c_bus->i2c_adap,
 477                                    &dvico_xc5000_tunerconfig);
 478                 break;
 479         case CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP: {
 480                 i2c_bus = &dev->i2c_bus[port->nr - 1];
 481
 482                 fe0->dvb.frontend = dvb_attach(zl10353_attach,
 483                                                &dvico_fusionhdtv_xc3028,
 484                                                &i2c_bus->i2c_adap);
 485                 if (fe0->dvb.frontend != NULL) {
 486                         struct dvb_frontend      *fe;
 487                         struct xc2028_config      cfg = {
 488                                 .i2c_adap  = &i2c_bus->i2c_adap,
 489                                 .i2c_addr  = 0x61,
 490                         };
 491                         static struct xc2028_ctrl ctl = {
 492                                 .fname       = XC2028_DEFAULT_FIRMWARE,
 493                                 .max_len     = 64,
 494                                 .demod       = XC3028_FE_ZARLINK456,
 495                         };
 496
 497                         fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
 498                                         &cfg);
 499                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 500                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 501                 }
 502                 break;
 503         }
 504         case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
 505                 i2c_bus = &dev->i2c_bus[0];
 506
 507                 fe0->dvb.frontend = dvb_attach(zl10353_attach,
 508                         &dvico_fusionhdtv_xc3028,
 509                         &i2c_bus->i2c_adap);
 510                 if (fe0->dvb.frontend != NULL) {
 511                         struct dvb_frontend      *fe;
 512                         struct xc2028_config      cfg = {
 513                                 .i2c_adap  = &dev->i2c_bus[1].i2c_adap,
 514                                 .i2c_addr  = 0x61,
 515                         };
 516                         static struct xc2028_ctrl ctl = {
 517                                 .fname       = XC2028_DEFAULT_FIRMWARE,
 518                                 .max_len     = 64,
 519                                 .demod       = XC3028_FE_ZARLINK456,
 520                         };
 521
 522                         fe = dvb_attach(xc2028_attach, fe0->dvb.frontend,
 523                                 &cfg);
 524                         if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
 525                                 fe->ops.tuner_ops.set_config(fe, &ctl);
 526                 }
 527                 break;
 528         default:
 529                 printk(KERN_INFO "%s: The frontend of your DVB/ATSC card "
 530                         " isn't supported yet\n",
 531                        dev->name);
 532                 break;
 533         }
 534         if (NULL == fe0->dvb.frontend) {
 535                 printk(KERN_ERR "%s: frontend initialization failed\n",
 536                         dev->name);
 537                 return -1;
 538         }
 539         /* define general-purpose callback pointer */
 540         fe0->dvb.frontend->callback = cx23885_tuner_callback;
 541
 542         /* Put the analog decoder in standby to keep it quiet */
 543         cx23885_call_i2c_clients(i2c_bus, TUNER_SET_STANDBY, NULL);
 544
 545         if (fe0->dvb.frontend->ops.analog_ops.standby)
 546                 fe0->dvb.frontend->ops.analog_ops.standby(fe0->dvb.frontend);
 547
 548         /* register everything */
 549         return videobuf_dvb_register_bus(&port->frontends, THIS_MODULE, port,
 550                 &dev->pci->dev, adapter_nr, 0);
 551
 552 }
 553
 554 int cx23885_dvb_register(struct cx23885_tsport *port)
 555 {
 556
 557         struct videobuf_dvb_frontend *fe0;
 558         struct cx23885_dev *dev = port->dev;
 559         int err, i;
 560
 561         /* Here we need to allocate the correct number of frontends,
 562          * as reflected in the cards struct. The reality is that currrently
 563          * no cx23885 boards support this - yet. But, if we don't modify this
 564          * code then the second frontend would never be allocated (later)
 565          * and fail with error before the attach in dvb_register().
 566          * Without these changes we risk an OOPS later. The changes here
 567          * are for safety, and should provide a good foundation for the
 568          * future addition of any multi-frontend cx23885 based boards.
 569          */
 570         printk(KERN_INFO "%s() allocating %d frontend(s)\n", __func__,
 571                 port->num_frontends);
 572
 573         for (i = 1; i <= port->num_frontends; i++) {
 574                 if (videobuf_dvb_alloc_frontend(
 575                         &port->frontends, i) == NULL) {
 576                         printk(KERN_ERR "%s() failed to alloc\n", __func__);
 577                         return -ENOMEM;
 578                 }
 579
 580                 fe0 = videobuf_dvb_get_frontend(&port->frontends, i);
 581                 if (!fe0)
 582                         err = -EINVAL;
 583
 584                 dprintk(1, "%s\n", __func__);
 585                 dprintk(1, " ->probed by Card=%d Name=%s, PCI %02x:%02x\n",
 586                         dev->board,
 587                         dev->name,
 588                         dev->pci_bus,
 589                         dev->pci_slot);
 590
 591                 err = -ENODEV;
 592
 593                 /* dvb stuff */
 594                 /* We have to init the queue for each frontend on a port. */
 595                 printk(KERN_INFO "%s: cx23885 based dvb card\n", dev->name);
 596                 videobuf_queue_sg_init(&fe0->dvb.dvbq, &dvb_qops,
 597                             &dev->pci->dev, &port->slock,
 598                             V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_TOP,
 599                             sizeof(struct cx23885_buffer), port);
 600         }
 601         err = dvb_register(port);
 602         if (err != 0)
 603                 printk(KERN_ERR "%s() dvb_register failed err = %d\n",
 604                         __func__, err);
 605
 606         return err;
 607 }
 608
 609 int cx23885_dvb_unregister(struct cx23885_tsport *port)
 610 {
 611         struct videobuf_dvb_frontend *fe0;
 612
 613         /* FIXME: in an error condition where the we have
 614          * an expected number of frontends (attach problem)
 615          * then this might not clean up correctly, if 1
 616          * is invalid.
 617          * This comment only applies to future boards IF they
 618          * implement MFE support.
 619          */
 620         fe0 = videobuf_dvb_get_frontend(&port->frontends, 1);
 621         if (fe0->dvb.frontend)
 622                 videobuf_dvb_unregister_bus(&port->frontends);
 623
 624         return 0;
 625 }
 626