drivers/media/video/cx18/cx18-driver.c

   1 /*
   2  *  cx18 driver initialization and card probing
   3  *
   4  *  Derived from ivtv-driver.c
   5  *
   6  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   7  *  Copyright (C) 2008  Andy Walls <awalls@radix.net>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License as published by
  11  *  the Free Software Foundation; either version 2 of the License, or
  12  *  (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the Free Software
  21  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  22  *  02111-1307  USA
  23  */
  24
  25 #include "cx18-driver.h"
  26 #include "cx18-io.h"
  27 #include "cx18-version.h"
  28 #include "cx18-cards.h"
  29 #include "cx18-i2c.h"
  30 #include "cx18-irq.h"
  31 #include "cx18-gpio.h"
  32 #include "cx18-firmware.h"
  33 #include "cx18-streams.h"
  34 #include "cx18-av-core.h"
  35 #include "cx18-scb.h"
  36 #include "cx18-mailbox.h"
  37 #include "cx18-ioctl.h"
  38 #include "tuner-xc2028.h"
  39
  40 #include <media/tveeprom.h>
  41
  42
  43 /* var to keep track of the number of array elements in use */
  44 int cx18_cards_active;
  45
  46 /* If you have already X v4l cards, then set this to X. This way
  47    the device numbers stay matched. Example: you have a WinTV card
  48    without radio and a Compro H900 with. Normally this would give a
  49    video1 device together with a radio0 device for the Compro. By
  50    setting this to 1 you ensure that radio0 is now also radio1. */
  51 int cx18_first_minor;
  52
  53 /* Master variable for all cx18 info */
  54 struct cx18 *cx18_cards[CX18_MAX_CARDS];
  55
  56 /* Protects cx18_cards_active */
  57 DEFINE_SPINLOCK(cx18_cards_lock);
  58
  59 /* add your revision and whatnot here */
  60 static struct pci_device_id cx18_pci_tbl[] __devinitdata = {
  61         {PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418,
  62          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
  63         {0,}
  64 };
  65
  66 MODULE_DEVICE_TABLE(pci, cx18_pci_tbl);
  67
  68 /* Parameter declarations */
  69 static int cardtype[CX18_MAX_CARDS];
  70 static int tuner[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
  71                                      -1, -1, -1, -1, -1, -1, -1, -1,
  72                                      -1, -1, -1, -1, -1, -1, -1, -1,
  73                                      -1, -1, -1, -1, -1, -1, -1, -1 };
  74 static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
  75                                      -1, -1, -1, -1, -1, -1, -1, -1,
  76                                      -1, -1, -1, -1, -1, -1, -1, -1,
  77                                      -1, -1, -1, -1, -1, -1, -1, -1 };
  78 static unsigned cardtype_c = 1;
  79 static unsigned tuner_c = 1;
  80 static unsigned radio_c = 1;
  81 static char pal[] = "--";
  82 static char secam[] = "--";
  83 static char ntsc[] = "-";
  84
  85 /* Buffers */
  86 static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
  87 static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
  88 static int enc_idx_buffers = CX18_DEFAULT_ENC_IDX_BUFFERS;
  89 static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS;
  90 static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS;
  91 static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS;
  92
  93 static int enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE;
  94 static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE;
  95 static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE;
  96 static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE;
  97 /* VBI bufsize based on standards supported by card tuner for now */
  98 static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE;
  99
 100 static int enc_ts_bufs = -1;
 101 static int enc_mpg_bufs = -1;
 102 static int enc_idx_bufs = -1;
 103 static int enc_yuv_bufs = -1;
 104 static int enc_vbi_bufs = -1;
 105 static int enc_pcm_bufs = -1;
 106
 107
 108 static int cx18_pci_latency = 1;
 109
 110 static int mmio_ndelay;
 111 static int retry_mmio = 1;
 112
 113 int cx18_debug;
 114
 115 module_param_array(tuner, int, &tuner_c, 0644);
 116 module_param_array(radio, bool, &radio_c, 0644);
 117 module_param_array(cardtype, int, &cardtype_c, 0644);
 118 module_param_string(pal, pal, sizeof(pal), 0644);
 119 module_param_string(secam, secam, sizeof(secam), 0644);
 120 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
 121 module_param_named(debug, cx18_debug, int, 0644);
 122 module_param(mmio_ndelay, int, 0644);
 123 module_param(retry_mmio, int, 0644);
 124 module_param(cx18_pci_latency, int, 0644);
 125 module_param(cx18_first_minor, int, 0644);
 126
 127 module_param(enc_ts_buffers, int, 0644);
 128 module_param(enc_mpg_buffers, int, 0644);
 129 module_param(enc_idx_buffers, int, 0644);
 130 module_param(enc_yuv_buffers, int, 0644);
 131 module_param(enc_vbi_buffers, int, 0644);
 132 module_param(enc_pcm_buffers, int, 0644);
 133
 134 module_param(enc_ts_bufsize, int, 0644);
 135 module_param(enc_mpg_bufsize, int, 0644);
 136 module_param(enc_idx_bufsize, int, 0644);
 137 module_param(enc_yuv_bufsize, int, 0644);
 138 /* VBI bufsize based on standards supported by card tuner for now */
 139 module_param(enc_pcm_bufsize, int, 0644);
 140
 141 module_param(enc_ts_bufs, int, 0644);
 142 module_param(enc_mpg_bufs, int, 0644);
 143 module_param(enc_idx_bufs, int, 0644);
 144 module_param(enc_yuv_bufs, int, 0644);
 145 module_param(enc_vbi_bufs, int, 0644);
 146 module_param(enc_pcm_bufs, int, 0644);
 147
 148 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
 149                         "\t\t\tsee tuner.h for values");
 150 MODULE_PARM_DESC(radio,
 151                  "Enable or disable the radio. Use only if autodetection\n"
 152                  "\t\t\tfails. 0 = disable, 1 = enable");
 153 MODULE_PARM_DESC(cardtype,
 154                  "Only use this option if your card is not detected properly.\n"
 155                  "\t\tSpecify card type:\n"
 156                  "\t\t\t 1 = Hauppauge HVR 1600 (ESMT memory)\n"
 157                  "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n"
 158                  "\t\t\t 3 = Compro VideoMate H900\n"
 159                  "\t\t\t 4 = Yuan MPC718\n"
 160                  "\t\t\t 5 = Conexant Raptor PAL/SECAM\n"
 161                  "\t\t\t 6 = Toshiba Qosmio DVB-T/Analog\n"
 162                  "\t\t\t 7 = Leadtek WinFast PVR2100\n"
 163                  "\t\t\t 0 = Autodetect (default)\n"
 164                  "\t\t\t-1 = Ignore this card\n\t\t");
 165 MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60");
 166 MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC");
 167 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K");
 168 MODULE_PARM_DESC(debug,
 169                  "Debug level (bitmask). Default: 0\n"
 170                  "\t\t\t  1/0x0001: warning\n"
 171                  "\t\t\t  2/0x0002: info\n"
 172                  "\t\t\t  4/0x0004: mailbox\n"
 173                  "\t\t\t  8/0x0008: dma\n"
 174                  "\t\t\t 16/0x0010: ioctl\n"
 175                  "\t\t\t 32/0x0020: file\n"
 176                  "\t\t\t 64/0x0040: i2c\n"
 177                  "\t\t\t128/0x0080: irq\n"
 178                  "\t\t\t256/0x0100: high volume\n");
 179 MODULE_PARM_DESC(cx18_pci_latency,
 180                  "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
 181                  "\t\t\tDefault: Yes");
 182 MODULE_PARM_DESC(retry_mmio,
 183                  "(Deprecated) MMIO writes are now always checked and retried\n"
 184                  "\t\t\tEffectively: 1 [Yes]");
 185 MODULE_PARM_DESC(mmio_ndelay,
 186                  "(Deprecated) MMIO accesses are now never purposely delayed\n"
 187                  "\t\t\tEffectively: 0 ns");
 188 MODULE_PARM_DESC(enc_ts_buffers,
 189                  "Encoder TS buffer memory (MB). (enc_ts_bufs can override)\n"
 190                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
 191 MODULE_PARM_DESC(enc_ts_bufsize,
 192                  "Size of an encoder TS buffer (kB)\n"
 193                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFSIZE));
 194 MODULE_PARM_DESC(enc_ts_bufs,
 195                  "Number of encoder TS buffers\n"
 196                  "\t\t\tDefault is computed from other enc_ts_* parameters");
 197 MODULE_PARM_DESC(enc_mpg_buffers,
 198                  "Encoder MPG buffer memory (MB). (enc_mpg_bufs can override)\n"
 199                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
 200 MODULE_PARM_DESC(enc_mpg_bufsize,
 201                  "Size of an encoder MPG buffer (kB)\n"
 202                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFSIZE));
 203 MODULE_PARM_DESC(enc_mpg_bufs,
 204                  "Number of encoder MPG buffers\n"
 205                  "\t\t\tDefault is computed from other enc_mpg_* parameters");
 206 MODULE_PARM_DESC(enc_idx_buffers,
 207                  "Encoder IDX buffer memory (MB). (enc_idx_bufs can override)\n"
 208                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFFERS));
 209 MODULE_PARM_DESC(enc_idx_bufsize,
 210                  "Size of an encoder IDX buffer (kB)\n"
 211                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_IDX_BUFSIZE));
 212 MODULE_PARM_DESC(enc_idx_bufs,
 213                  "Number of encoder IDX buffers\n"
 214                  "\t\t\tDefault is computed from other enc_idx_* parameters");
 215 MODULE_PARM_DESC(enc_yuv_buffers,
 216                  "Encoder YUV buffer memory (MB). (enc_yuv_bufs can override)\n"
 217                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
 218 MODULE_PARM_DESC(enc_yuv_bufsize,
 219                  "Size of an encoder YUV buffer (kB)\n"
 220                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFSIZE));
 221 MODULE_PARM_DESC(enc_yuv_bufs,
 222                  "Number of encoder YUV buffers\n"
 223                  "\t\t\tDefault is computed from other enc_yuv_* parameters");
 224 MODULE_PARM_DESC(enc_vbi_buffers,
 225                  "Encoder VBI buffer memory (MB). (enc_vbi_bufs can override)\n"
 226                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
 227 MODULE_PARM_DESC(enc_vbi_bufs,
 228                  "Number of encoder VBI buffers\n"
 229                  "\t\t\tDefault is computed from enc_vbi_buffers & tuner std");
 230 MODULE_PARM_DESC(enc_pcm_buffers,
 231                  "Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n"
 232                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));
 233 MODULE_PARM_DESC(enc_pcm_bufsize,
 234                  "Size of an encoder PCM buffer (kB)\n"
 235                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFSIZE));
 236 MODULE_PARM_DESC(enc_pcm_bufs,
 237                  "Number of encoder PCM buffers\n"
 238                  "\t\t\tDefault is computed from other enc_pcm_* parameters");
 239
 240 MODULE_PARM_DESC(cx18_first_minor, "Set kernel number assigned to first card");
 241
 242 MODULE_AUTHOR("Hans Verkuil");
 243 MODULE_DESCRIPTION("CX23418 driver");
 244 MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
 245 MODULE_LICENSE("GPL");
 246
 247 MODULE_VERSION(CX18_VERSION);
 248
 249 /* Generic utility functions */
 250 int cx18_msleep_timeout(unsigned int msecs, int intr)
 251 {
 252         long int timeout = msecs_to_jiffies(msecs);
 253         int sig;
 254
 255         do {
 256                 set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
 257                 timeout = schedule_timeout(timeout);
 258                 sig = intr ? signal_pending(current) : 0;
 259         } while (!sig && timeout);
 260         return sig;
 261 }
 262
 263 /* Release ioremapped memory */
 264 static void cx18_iounmap(struct cx18 *cx)
 265 {
 266         if (cx == NULL)
 267                 return;
 268
 269         /* Release io memory */
 270         if (cx->enc_mem != NULL) {
 271                 CX18_DEBUG_INFO("releasing enc_mem\n");
 272                 iounmap(cx->enc_mem);
 273                 cx->enc_mem = NULL;
 274         }
 275 }
 276
 277 /* Hauppauge card? get values from tveeprom */
 278 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
 279 {
 280         u8 eedata[256];
 281
 282         cx->i2c_client[0].addr = 0xA0 >> 1;
 283         tveeprom_read(&cx->i2c_client[0], eedata, sizeof(eedata));
 284         tveeprom_hauppauge_analog(&cx->i2c_client[0], tv, eedata);
 285 }
 286
 287 static void cx18_process_eeprom(struct cx18 *cx)
 288 {
 289         struct tveeprom tv;
 290
 291         cx18_read_eeprom(cx, &tv);
 292
 293         /* Many thanks to Steven Toth from Hauppauge for providing the
 294            model numbers */
 295         /* Note: the Samsung memory models cannot be reliably determined
 296            from the model number. Use the cardtype module option if you
 297            have one of these preproduction models. */
 298         switch (tv.model) {
 299         case 74000 ... 74999:
 300                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 301                 break;
 302         case 0:
 303                 CX18_ERR("Invalid EEPROM\n");
 304                 return;
 305         default:
 306                 CX18_ERR("Unknown model %d, defaulting to HVR-1600\n", tv.model);
 307                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 308                 break;
 309         }
 310
 311         cx->v4l2_cap = cx->card->v4l2_capabilities;
 312         cx->card_name = cx->card->name;
 313         cx->card_i2c = cx->card->i2c;
 314
 315         CX18_INFO("Autodetected %s\n", cx->card_name);
 316
 317         if (tv.tuner_type == TUNER_ABSENT)
 318                 CX18_ERR("tveeprom cannot autodetect tuner!");
 319
 320         if (cx->options.tuner == -1)
 321                 cx->options.tuner = tv.tuner_type;
 322         if (cx->options.radio == -1)
 323                 cx->options.radio = (tv.has_radio != 0);
 324
 325         if (cx->std != 0)
 326                 /* user specified tuner standard */
 327                 return;
 328
 329         /* autodetect tuner standard */
 330         if (tv.tuner_formats & V4L2_STD_PAL) {
 331                 CX18_DEBUG_INFO("PAL tuner detected\n");
 332                 cx->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
 333         } else if (tv.tuner_formats & V4L2_STD_NTSC) {
 334                 CX18_DEBUG_INFO("NTSC tuner detected\n");
 335                 cx->std |= V4L2_STD_NTSC_M;
 336         } else if (tv.tuner_formats & V4L2_STD_SECAM) {
 337                 CX18_DEBUG_INFO("SECAM tuner detected\n");
 338                 cx->std |= V4L2_STD_SECAM_L;
 339         } else {
 340                 CX18_INFO("No tuner detected, default to NTSC-M\n");
 341                 cx->std |= V4L2_STD_NTSC_M;
 342         }
 343 }
 344
 345 static v4l2_std_id cx18_parse_std(struct cx18 *cx)
 346 {
 347         switch (pal[0]) {
 348         case '6':
 349                 return V4L2_STD_PAL_60;
 350         case 'b':
 351         case 'B':
 352         case 'g':
 353         case 'G':
 354                 return V4L2_STD_PAL_BG;
 355         case 'h':
 356         case 'H':
 357                 return V4L2_STD_PAL_H;
 358         case 'n':
 359         case 'N':
 360                 if (pal[1] == 'c' || pal[1] == 'C')
 361                         return V4L2_STD_PAL_Nc;
 362                 return V4L2_STD_PAL_N;
 363         case 'i':
 364         case 'I':
 365                 return V4L2_STD_PAL_I;
 366         case 'd':
 367         case 'D':
 368         case 'k':
 369         case 'K':
 370                 return V4L2_STD_PAL_DK;
 371         case 'M':
 372         case 'm':
 373                 return V4L2_STD_PAL_M;
 374         case '-':
 375                 break;
 376         default:
 377                 CX18_WARN("pal= argument not recognised\n");
 378                 return 0;
 379         }
 380
 381         switch (secam[0]) {
 382         case 'b':
 383         case 'B':
 384         case 'g':
 385         case 'G':
 386         case 'h':
 387         case 'H':
 388                 return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
 389         case 'd':
 390         case 'D':
 391         case 'k':
 392         case 'K':
 393                 return V4L2_STD_SECAM_DK;
 394         case 'l':
 395         case 'L':
 396                 if (secam[1] == 'C' || secam[1] == 'c')
 397                         return V4L2_STD_SECAM_LC;
 398                 return V4L2_STD_SECAM_L;
 399         case '-':
 400                 break;
 401         default:
 402                 CX18_WARN("secam= argument not recognised\n");
 403                 return 0;
 404         }
 405
 406         switch (ntsc[0]) {
 407         case 'm':
 408         case 'M':
 409                 return V4L2_STD_NTSC_M;
 410         case 'j':
 411         case 'J':
 412                 return V4L2_STD_NTSC_M_JP;
 413         case 'k':
 414         case 'K':
 415                 return V4L2_STD_NTSC_M_KR;
 416         case '-':
 417                 break;
 418         default:
 419                 CX18_WARN("ntsc= argument not recognised\n");
 420                 return 0;
 421         }
 422
 423         /* no match found */
 424         return 0;
 425 }
 426
 427 static void cx18_process_options(struct cx18 *cx)
 428 {
 429         int i, j;
 430
 431         cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers;
 432         cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
 433         cx->options.megabytes[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_buffers;
 434         cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers;
 435         cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers;
 436         cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
 437         cx->options.megabytes[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control only */
 438
 439         cx->stream_buffers[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufs;
 440         cx->stream_buffers[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufs;
 441         cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufs;
 442         cx->stream_buffers[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufs;
 443         cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_bufs;
 444         cx->stream_buffers[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufs;
 445         cx->stream_buffers[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control, no data */
 446
 447         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = enc_ts_bufsize;
 448         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_bufsize;
 449         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_IDX] = enc_idx_bufsize;
 450         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_bufsize;
 451         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = 0; /* computed later */
 452         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_bufsize;
 453         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_RAD] = 0; /* control no data */
 454
 455         /* Except for VBI ensure stream_buffers & stream_buf_size are valid */
 456         for (i = 0; i < CX18_MAX_STREAMS; i++) {
 457                 /* User said to use 0 buffers */
 458                 if (cx->stream_buffers[i] == 0) {
 459                         cx->options.megabytes[i] = 0;
 460                         cx->stream_buf_size[i] = 0;
 461                         continue;
 462                 }
 463                 /* User said to use 0 MB total */
 464                 if (cx->options.megabytes[i] <= 0) {
 465                         cx->options.megabytes[i] = 0;
 466                         cx->stream_buffers[i] = 0;
 467                         cx->stream_buf_size[i] = 0;
 468                         continue;
 469                 }
 470                 /* VBI is computed later or user said buffer has size 0 */
 471                 if (cx->stream_buf_size[i] <= 0) {
 472                         if (i != CX18_ENC_STREAM_TYPE_VBI) {
 473                                 cx->options.megabytes[i] = 0;
 474                                 cx->stream_buffers[i] = 0;
 475                                 cx->stream_buf_size[i] = 0;
 476                         }
 477                         continue;
 478                 }
 479                 if (cx->stream_buffers[i] < 0) {
 480                         cx->stream_buffers[i] = cx->options.megabytes[i] * 1024
 481                                                 / cx->stream_buf_size[i];
 482                 } else {
 483                         /* N.B. This might round down to 0 */
 484                         cx->options.megabytes[i] =
 485                           cx->stream_buffers[i] * cx->stream_buf_size[i] / 1024;
 486                 }
 487                 cx->stream_buf_size[i] *= 1024; /* convert from kB to bytes */
 488         }
 489
 490         cx->options.cardtype = cardtype[cx->num];
 491         cx->options.tuner = tuner[cx->num];
 492         cx->options.radio = radio[cx->num];
 493
 494         cx->std = cx18_parse_std(cx);
 495         if (cx->options.cardtype == -1) {
 496                 CX18_INFO("Ignore card\n");
 497                 return;
 498         }
 499         cx->card = cx18_get_card(cx->options.cardtype - 1);
 500         if (cx->card)
 501                 CX18_INFO("User specified %s card\n", cx->card->name);
 502         else if (cx->options.cardtype != 0)
 503                 CX18_ERR("Unknown user specified type, trying to autodetect card\n");
 504         if (cx->card == NULL) {
 505                 if (cx->dev->subsystem_vendor == CX18_PCI_ID_HAUPPAUGE) {
 506                         cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 507                         CX18_INFO("Autodetected Hauppauge card\n");
 508                 }
 509         }
 510         if (cx->card == NULL) {
 511                 for (i = 0; (cx->card = cx18_get_card(i)); i++) {
 512                         if (cx->card->pci_list == NULL)
 513                                 continue;
 514                         for (j = 0; cx->card->pci_list[j].device; j++) {
 515                                 if (cx->dev->device !=
 516                                     cx->card->pci_list[j].device)
 517                                         continue;
 518                                 if (cx->dev->subsystem_vendor !=
 519                                     cx->card->pci_list[j].subsystem_vendor)
 520                                         continue;
 521                                 if (cx->dev->subsystem_device !=
 522                                     cx->card->pci_list[j].subsystem_device)
 523                                         continue;
 524                                 CX18_INFO("Autodetected %s card\n", cx->card->name);
 525                                 goto done;
 526                         }
 527                 }
 528         }
 529 done:
 530
 531         if (cx->card == NULL) {
 532                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 533                 CX18_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
 534                      cx->dev->vendor, cx->dev->device);
 535                 CX18_ERR("              subsystem vendor/device: [%04x:%04x]\n",
 536                      cx->dev->subsystem_vendor, cx->dev->subsystem_device);
 537                 CX18_ERR("Defaulting to %s card\n", cx->card->name);
 538                 CX18_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
 539                 CX18_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
 540                 CX18_ERR("Prefix your subject line with [UNKNOWN CX18 CARD].\n");
 541         }
 542         cx->v4l2_cap = cx->card->v4l2_capabilities;
 543         cx->card_name = cx->card->name;
 544         cx->card_i2c = cx->card->i2c;
 545 }
 546
 547 /* Precondition: the cx18 structure has been memset to 0. Only
 548    the dev and num fields have been filled in.
 549    No assumptions on the card type may be made here (see cx18_init_struct2
 550    for that).
 551  */
 552 static int __devinit cx18_init_struct1(struct cx18 *cx)
 553 {
 554         int i;
 555
 556         cx->base_addr = pci_resource_start(cx->dev, 0);
 557
 558         mutex_init(&cx->serialize_lock);
 559         mutex_init(&cx->i2c_bus_lock[0]);
 560         mutex_init(&cx->i2c_bus_lock[1]);
 561         mutex_init(&cx->gpio_lock);
 562         mutex_init(&cx->epu2apu_mb_lock);
 563         mutex_init(&cx->epu2cpu_mb_lock);
 564
 565         spin_lock_init(&cx->lock);
 566
 567         cx->work_queue = create_singlethread_workqueue(cx->name);
 568         if (cx->work_queue == NULL) {
 569                 CX18_ERR("Unable to create work hander thread\n");
 570                 return -ENOMEM;
 571         }
 572
 573         for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++) {
 574                 cx->epu_work_order[i].cx = cx;
 575                 cx->epu_work_order[i].str = cx->epu_debug_str;
 576                 INIT_WORK(&cx->epu_work_order[i].work, cx18_epu_work_handler);
 577         }
 578
 579         /* start counting open_id at 1 */
 580         cx->open_id = 1;
 581
 582         /* Initial settings */
 583         cx2341x_fill_defaults(&cx->params);
 584         cx->temporal_strength = cx->params.video_temporal_filter;
 585         cx->spatial_strength = cx->params.video_spatial_filter;
 586         cx->filter_mode = cx->params.video_spatial_filter_mode |
 587                 (cx->params.video_temporal_filter_mode << 1) |
 588                 (cx->params.video_median_filter_type << 2);
 589         cx->params.port = CX2341X_PORT_MEMORY;
 590         cx->params.capabilities = CX2341X_CAP_HAS_TS;
 591         init_waitqueue_head(&cx->cap_w);
 592         init_waitqueue_head(&cx->mb_apu_waitq);
 593         init_waitqueue_head(&cx->mb_cpu_waitq);
 594         init_waitqueue_head(&cx->dma_waitq);
 595
 596         /* VBI */
 597         cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
 598         cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
 599
 600         /*
 601          * The VBI line sizes depend on the pixel clock and the horiz rate
 602          *
 603          * (1/Fh)*(2*Fp) = Samples/line
 604          *     = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples
 605          *
 606          *  Sliced VBI is sent as ancillary data during horizontal blanking
 607          *  Raw VBI is sent as active video samples during vertcal blanking
 608          *
 609          *  We use a  BT.656 pxiel clock of 13.5 MHz and a BT.656 active line
 610          *  length of 720 pixels @ 4:2:2 sampling.  Thus...
 611          *
 612          *  For systems that use a 15.734 kHz horizontal rate, such as
 613          *  NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have:
 614          *
 615          *  (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line =
 616          *  4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples
 617          *
 618          *  For systems that use a 15.625 kHz horizontal rate, such as
 619          *  PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have:
 620          *
 621          *  (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line =
 622          *  4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples
 623          *
 624          */
 625
 626         /* FIXME: init these based on tuner std & modify when std changes */
 627         /* CX18-AV-Core number of VBI samples output per horizontal line */
 628         cx->vbi.raw_decoder_line_size = 1444;   /* 4 byte SAV + 2 * 720 */
 629         cx->vbi.sliced_decoder_line_size = 272; /* 60 Hz: 268+4, 50 Hz: 280+4 */
 630
 631         /* CX18-AV-Core VBI samples/line possibly rounded up */
 632         cx->vbi.raw_size = 1444;   /* Real max size is 1444 */
 633         cx->vbi.sliced_size = 284; /* Real max size is  284 */
 634
 635         /*
 636          * CX18-AV-Core SAV/EAV RP codes in VIP 1.x mode
 637          * Task Field VerticalBlank HorizontalBlank 0 0 0 0
 638          */
 639         cx->vbi.raw_decoder_sav_odd_field = 0x20;     /*   V  */
 640         cx->vbi.raw_decoder_sav_even_field = 0x60;    /*  FV  */
 641         cx->vbi.sliced_decoder_sav_odd_field = 0xB0;  /* T VH - actually EAV */
 642         cx->vbi.sliced_decoder_sav_even_field = 0xF0; /* TFVH - actually EAV */
 643         return 0;
 644 }
 645
 646 /* Second initialization part. Here the card type has been
 647    autodetected. */
 648 static void __devinit cx18_init_struct2(struct cx18 *cx)
 649 {
 650         int i;
 651
 652         for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS; i++)
 653                 if (cx->card->video_inputs[i].video_type == 0)
 654                         break;
 655         cx->nof_inputs = i;
 656         for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS; i++)
 657                 if (cx->card->audio_inputs[i].audio_type == 0)
 658                         break;
 659         cx->nof_audio_inputs = i;
 660
 661         /* Find tuner input */
 662         for (i = 0; i < cx->nof_inputs; i++) {
 663                 if (cx->card->video_inputs[i].video_type ==
 664                                 CX18_CARD_INPUT_VID_TUNER)
 665                         break;
 666         }
 667         if (i == cx->nof_inputs)
 668                 i = 0;
 669         cx->active_input = i;
 670         cx->audio_input = cx->card->video_inputs[i].audio_index;
 671         cx->av_state.vid_input = CX18_AV_COMPOSITE7;
 672         cx->av_state.aud_input = CX18_AV_AUDIO8;
 673         cx->av_state.audclk_freq = 48000;
 674         cx->av_state.audmode = V4L2_TUNER_MODE_LANG1;
 675         /* FIXME - 8 is NTSC value, investigate */
 676         cx->av_state.vbi_line_offset = 8;
 677 }
 678
 679 static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
 680                           const struct pci_device_id *pci_id)
 681 {
 682         u16 cmd;
 683         unsigned char pci_latency;
 684
 685         CX18_DEBUG_INFO("Enabling pci device\n");
 686
 687         if (pci_enable_device(dev)) {
 688                 CX18_ERR("Can't enable device %d!\n", cx->num);
 689                 return -EIO;
 690         }
 691         if (pci_set_dma_mask(dev, 0xffffffff)) {
 692                 CX18_ERR("No suitable DMA available on card %d.\n", cx->num);
 693                 return -EIO;
 694         }
 695         if (!request_mem_region(cx->base_addr, CX18_MEM_SIZE, "cx18 encoder")) {
 696                 CX18_ERR("Cannot request encoder memory region on card %d.\n", cx->num);
 697                 return -EIO;
 698         }
 699
 700         /* Enable bus mastering and memory mapped IO for the CX23418 */
 701         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 702         cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
 703         pci_write_config_word(dev, PCI_COMMAND, cmd);
 704
 705         pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev);
 706         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 707
 708         if (pci_latency < 64 && cx18_pci_latency) {
 709                 CX18_INFO("Unreasonably low latency timer, "
 710                                "setting to 64 (was %d)\n", pci_latency);
 711                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
 712                 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 713         }
 714
 715         CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
 716                    "irq: %d, latency: %d, memory: 0x%lx\n",
 717                    cx->dev->device, cx->card_rev, dev->bus->number,
 718                    PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn),
 719                    cx->dev->irq, pci_latency, (unsigned long)cx->base_addr);
 720
 721         return 0;
 722 }
 723
 724 #ifdef MODULE
 725 static u32 cx18_request_module(struct cx18 *cx, u32 hw,
 726                 const char *name, u32 id)
 727 {
 728         if ((hw & id) == 0)
 729                 return hw;
 730         if (request_module(name) != 0) {
 731                 CX18_ERR("Failed to load module %s\n", name);
 732                 return hw & ~id;
 733         }
 734         CX18_DEBUG_INFO("Loaded module %s\n", name);
 735         return hw;
 736 }
 737 #endif
 738
 739 static void cx18_load_and_init_modules(struct cx18 *cx)
 740 {
 741         u32 hw = cx->card->hw_all;
 742         int i;
 743
 744 #ifdef MODULE
 745         /* load modules */
 746 #ifdef CONFIG_MEDIA_TUNER_MODULE
 747         hw = cx18_request_module(cx, hw, "tuner", CX18_HW_TUNER);
 748 #endif
 749 #ifdef CONFIG_VIDEO_CS5345_MODULE
 750         hw = cx18_request_module(cx, hw, "cs5345", CX18_HW_CS5345);
 751 #endif
 752 #endif
 753
 754         /* check which i2c devices are actually found */
 755         for (i = 0; i < 32; i++) {
 756                 u32 device = 1 << i;
 757
 758                 if (!(device & hw))
 759                         continue;
 760                 if (device == CX18_HW_GPIO || device == CX18_HW_TVEEPROM ||
 761                     device == CX18_HW_CX23418 || device == CX18_HW_DVB) {
 762                         /* These 'devices' do not use i2c probing */
 763                         cx->hw_flags |= device;
 764                         continue;
 765                 }
 766                 cx18_i2c_register(cx, i);
 767                 if (cx18_i2c_hw_addr(cx, device) > 0)
 768                         cx->hw_flags |= device;
 769         }
 770
 771         hw = cx->hw_flags;
 772 }
 773
 774 static int __devinit cx18_probe(struct pci_dev *dev,
 775                                 const struct pci_device_id *pci_id)
 776 {
 777         int retval = 0;
 778         int i;
 779         int vbi_buf_size;
 780         u32 devtype;
 781         struct cx18 *cx;
 782
 783         spin_lock(&cx18_cards_lock);
 784
 785         /* Make sure we've got a place for this card */
 786         if (cx18_cards_active == CX18_MAX_CARDS) {
 787                 printk(KERN_ERR "cx18:  Maximum number of cards detected (%d).\n",
 788                               cx18_cards_active);
 789                 spin_unlock(&cx18_cards_lock);
 790                 return -ENOMEM;
 791         }
 792
 793         cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
 794         if (!cx) {
 795                 spin_unlock(&cx18_cards_lock);
 796                 return -ENOMEM;
 797         }
 798         cx18_cards[cx18_cards_active] = cx;
 799         cx->dev = dev;
 800         cx->num = cx18_cards_active++;
 801         snprintf(cx->name, sizeof(cx->name), "cx18-%d", cx->num);
 802         CX18_INFO("Initializing card #%d\n", cx->num);
 803
 804         spin_unlock(&cx18_cards_lock);
 805
 806         cx18_process_options(cx);
 807         if (cx->options.cardtype == -1) {
 808                 retval = -ENODEV;
 809                 goto err;
 810         }
 811         if (cx18_init_struct1(cx)) {
 812                 retval = -ENOMEM;
 813                 goto err;
 814         }
 815
 816         CX18_DEBUG_INFO("base addr: 0x%08x\n", cx->base_addr);
 817
 818         /* PCI Device Setup */
 819         retval = cx18_setup_pci(cx, dev, pci_id);
 820         if (retval != 0)
 821                 goto free_workqueue;
 822
 823         /* save cx in the pci struct for later use */
 824         pci_set_drvdata(dev, cx);
 825
 826         /* map io memory */
 827         CX18_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n",
 828                    cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE);
 829         cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET,
 830                                        CX18_MEM_SIZE);
 831         if (!cx->enc_mem) {
 832                 CX18_ERR("ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h\n");
 833                 CX18_ERR("or disabling CONFIG_HIGHMEM4G into the kernel would help\n");
 834                 retval = -ENOMEM;
 835                 goto free_mem;
 836         }
 837         cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET;
 838         devtype = cx18_read_reg(cx, 0xC72028);
 839         switch (devtype & 0xff000000) {
 840         case 0xff000000:
 841                 CX18_INFO("cx23418 revision %08x (A)\n", devtype);
 842                 break;
 843         case 0x01000000:
 844                 CX18_INFO("cx23418 revision %08x (B)\n", devtype);
 845                 break;
 846         default:
 847                 CX18_INFO("cx23418 revision %08x (Unknown)\n", devtype);
 848                 break;
 849         }
 850
 851         cx18_init_power(cx, 1);
 852         cx18_init_memory(cx);
 853
 854         cx->scb = (struct cx18_scb __iomem *)(cx->enc_mem + SCB_OFFSET);
 855         cx18_init_scb(cx);
 856
 857         cx18_gpio_init(cx);
 858
 859         /* active i2c  */
 860         CX18_DEBUG_INFO("activating i2c...\n");
 861         retval = init_cx18_i2c(cx);
 862         if (retval) {
 863                 CX18_ERR("Could not initialize i2c\n");
 864                 goto free_map;
 865         }
 866
 867         CX18_DEBUG_INFO("Active card count: %d.\n", cx18_cards_active);
 868
 869         if (cx->card->hw_all & CX18_HW_TVEEPROM) {
 870                 /* Based on the model number the cardtype may be changed.
 871                    The PCI IDs are not always reliable. */
 872                 cx18_process_eeprom(cx);
 873         }
 874         if (cx->card->comment)
 875                 CX18_INFO("%s", cx->card->comment);
 876         if (cx->card->v4l2_capabilities == 0) {
 877                 retval = -ENODEV;
 878                 goto free_i2c;
 879         }
 880         cx18_init_memory(cx);
 881         cx18_init_scb(cx);
 882
 883         /* Register IRQ */
 884         retval = request_irq(cx->dev->irq, cx18_irq_handler,
 885                              IRQF_SHARED | IRQF_DISABLED, cx->name, (void *)cx);
 886         if (retval) {
 887                 CX18_ERR("Failed to register irq %d\n", retval);
 888                 goto free_i2c;
 889         }
 890
 891         if (cx->std == 0)
 892                 cx->std = V4L2_STD_NTSC_M;
 893
 894         if (cx->options.tuner == -1) {
 895                 for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) {
 896                         if ((cx->std & cx->card->tuners[i].std) == 0)
 897                                 continue;
 898                         cx->options.tuner = cx->card->tuners[i].tuner;
 899                         break;
 900                 }
 901         }
 902         /* if no tuner was found, then pick the first tuner in the card list */
 903         if (cx->options.tuner == -1 && cx->card->tuners[0].std) {
 904                 cx->std = cx->card->tuners[0].std;
 905                 if (cx->std & V4L2_STD_PAL)
 906                         cx->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
 907                 else if (cx->std & V4L2_STD_NTSC)
 908                         cx->std = V4L2_STD_NTSC_M;
 909                 else if (cx->std & V4L2_STD_SECAM)
 910                         cx->std = V4L2_STD_SECAM_L;
 911                 cx->options.tuner = cx->card->tuners[0].tuner;
 912         }
 913         if (cx->options.radio == -1)
 914                 cx->options.radio = (cx->card->radio_input.audio_type != 0);
 915
 916         /* The card is now fully identified, continue with card-specific
 917            initialization. */
 918         cx18_init_struct2(cx);
 919
 920         cx18_load_and_init_modules(cx);
 921
 922         if (cx->std & V4L2_STD_525_60) {
 923                 cx->is_60hz = 1;
 924                 cx->is_out_60hz = 1;
 925         } else {
 926                 cx->is_50hz = 1;
 927                 cx->is_out_50hz = 1;
 928         }
 929         cx->params.video_gop_size = cx->is_60hz ? 15 : 12;
 930
 931         /*
 932          * FIXME: setting the buffer size based on the tuner standard is
 933          * suboptimal, as the CVBS and SVideo inputs could use a different std
 934          * and the buffer could end up being too small in that case.
 935          */
 936         vbi_buf_size = cx->vbi.raw_size * (cx->is_60hz ? 24 : 36) / 2;
 937         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
 938
 939         if (cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] < 0)
 940                 cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] =
 941                    cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] * 1024 * 1024
 942                    / vbi_buf_size;
 943         else
 944                 cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] =
 945                      cx->stream_buffers[CX18_ENC_STREAM_TYPE_VBI] * vbi_buf_size
 946                      / (1024 * 1024);
 947
 948         if (cx->options.radio > 0)
 949                 cx->v4l2_cap |= V4L2_CAP_RADIO;
 950
 951         if (cx->options.tuner > -1) {
 952                 struct tuner_setup setup;
 953
 954                 setup.addr = ADDR_UNSET;
 955                 setup.type = cx->options.tuner;
 956                 setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
 957                 setup.tuner_callback = (setup.type == TUNER_XC2028) ?
 958                         cx18_reset_tuner_gpio : NULL;
 959                 cx18_call_i2c_clients(cx, TUNER_SET_TYPE_ADDR, &setup);
 960                 if (setup.type == TUNER_XC2028) {
 961                         static struct xc2028_ctrl ctrl = {
 962                                 .fname = XC2028_DEFAULT_FIRMWARE,
 963                                 .max_len = 64,
 964                         };
 965                         struct v4l2_priv_tun_config cfg = {
 966                                 .tuner = cx->options.tuner,
 967                                 .priv = &ctrl,
 968                         };
 969                         cx18_call_i2c_clients(cx, TUNER_SET_CONFIG, &cfg);
 970                 }
 971         }
 972
 973         /* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
 974            are not. */
 975         cx->tuner_std = cx->std;
 976
 977         retval = cx18_streams_setup(cx);
 978         if (retval) {
 979                 CX18_ERR("Error %d setting up streams\n", retval);
 980                 goto free_irq;
 981         }
 982         retval = cx18_streams_register(cx);
 983         if (retval) {
 984                 CX18_ERR("Error %d registering devices\n", retval);
 985                 goto free_streams;
 986         }
 987
 988         CX18_INFO("Initialized card #%d: %s\n", cx->num, cx->card_name);
 989
 990         return 0;
 991
 992 free_streams:
 993         cx18_streams_cleanup(cx, 1);
 994 free_irq:
 995         free_irq(cx->dev->irq, (void *)cx);
 996 free_i2c:
 997         exit_cx18_i2c(cx);
 998 free_map:
 999         cx18_iounmap(cx);
1000 free_mem:
1001         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
1002 free_workqueue:
1003         destroy_workqueue(cx->work_queue);
1004 err:
1005         if (retval == 0)
1006                 retval = -ENODEV;
1007         CX18_ERR("Error %d on initialization\n", retval);
1008
1009         i = cx->num;
1010         spin_lock(&cx18_cards_lock);
1011         kfree(cx18_cards[i]);
1012         cx18_cards[i] = NULL;
1013         spin_unlock(&cx18_cards_lock);
1014         return retval;
1015 }
1016
1017 int cx18_init_on_first_open(struct cx18 *cx)
1018 {
1019         int video_input;
1020         int fw_retry_count = 3;
1021         struct v4l2_frequency vf;
1022         struct cx18_open_id fh;
1023
1024         fh.cx = cx;
1025
1026         if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
1027                 return -ENXIO;
1028
1029         if (test_and_set_bit(CX18_F_I_INITED, &cx->i_flags))
1030                 return 0;
1031
1032         while (--fw_retry_count > 0) {
1033                 /* load firmware */
1034                 if (cx18_firmware_init(cx) == 0)
1035                         break;
1036                 if (fw_retry_count > 1)
1037                         CX18_WARN("Retry loading firmware\n");
1038         }
1039
1040         if (fw_retry_count == 0) {
1041                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
1042                 return -ENXIO;
1043         }
1044         set_bit(CX18_F_I_LOADED_FW, &cx->i_flags);
1045
1046         /* Init the firmware twice to work around a silicon bug
1047          * transport related. */
1048
1049         fw_retry_count = 3;
1050         while (--fw_retry_count > 0) {
1051                 /* load firmware */
1052                 if (cx18_firmware_init(cx) == 0)
1053                         break;
1054                 if (fw_retry_count > 1)
1055                         CX18_WARN("Retry loading firmware\n");
1056         }
1057
1058         if (fw_retry_count == 0) {
1059                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
1060                 return -ENXIO;
1061         }
1062
1063         vf.tuner = 0;
1064         vf.type = V4L2_TUNER_ANALOG_TV;
1065         vf.frequency = 6400; /* the tuner 'baseline' frequency */
1066
1067         /* Set initial frequency. For PAL/SECAM broadcasts no
1068            'default' channel exists AFAIK. */
1069         if (cx->std == V4L2_STD_NTSC_M_JP)
1070                 vf.frequency = 1460;    /* ch. 1 91250*16/1000 */
1071         else if (cx->std & V4L2_STD_NTSC_M)
1072                 vf.frequency = 1076;    /* ch. 4 67250*16/1000 */
1073
1074         video_input = cx->active_input;
1075         cx->active_input++;     /* Force update of input */
1076         cx18_s_input(NULL, &fh, video_input);
1077
1078         /* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
1079            in one place. */
1080         cx->std++;              /* Force full standard initialization */
1081         cx18_s_std(NULL, &fh, &cx->tuner_std);
1082         cx18_s_frequency(NULL, &fh, &vf);
1083         return 0;
1084 }
1085
1086 static void cx18_cancel_epu_work_orders(struct cx18 *cx)
1087 {
1088         int i;
1089         for (i = 0; i < CX18_MAX_EPU_WORK_ORDERS; i++)
1090                 cancel_work_sync(&cx->epu_work_order[i].work);
1091 }
1092
1093 static void cx18_remove(struct pci_dev *pci_dev)
1094 {
1095         struct cx18 *cx = pci_get_drvdata(pci_dev);
1096
1097         CX18_DEBUG_INFO("Removing Card #%d\n", cx->num);
1098
1099         /* Stop all captures */
1100         CX18_DEBUG_INFO("Stopping all streams\n");
1101         if (atomic_read(&cx->tot_capturing) > 0)
1102                 cx18_stop_all_captures(cx);
1103
1104         /* Interrupts */
1105         cx18_sw1_irq_disable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
1106         cx18_sw2_irq_disable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
1107
1108         cx18_halt_firmware(cx);
1109
1110         cx18_cancel_epu_work_orders(cx);
1111
1112         destroy_workqueue(cx->work_queue);
1113
1114         cx18_streams_cleanup(cx, 1);
1115
1116         exit_cx18_i2c(cx);
1117
1118         free_irq(cx->dev->irq, (void *)cx);
1119
1120         cx18_iounmap(cx);
1121
1122         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
1123
1124         pci_disable_device(cx->dev);
1125
1126         CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num);
1127 }
1128
1129 /* define a pci_driver for card detection */
1130 static struct pci_driver cx18_pci_driver = {
1131       .name =     "cx18",
1132       .id_table = cx18_pci_tbl,
1133       .probe =    cx18_probe,
1134       .remove =   cx18_remove,
1135 };
1136
1137 static int module_start(void)
1138 {
1139         printk(KERN_INFO "cx18:  Start initialization, version %s\n", CX18_VERSION);
1140
1141         memset(cx18_cards, 0, sizeof(cx18_cards));
1142
1143         /* Validate parameters */
1144         if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
1145                 printk(KERN_ERR "cx18:  Exiting, cx18_first_minor must be between 0 and %d\n",
1146                      CX18_MAX_CARDS - 1);
1147                 return -1;
1148         }
1149
1150         if (cx18_debug < 0 || cx18_debug > 511) {
1151                 cx18_debug = 0;
1152                 printk(KERN_INFO "cx18:   Debug value must be >= 0 and <= 511!\n");
1153         }
1154
1155         if (pci_register_driver(&cx18_pci_driver)) {
1156                 printk(KERN_ERR "cx18:   Error detecting PCI card\n");
1157                 return -ENODEV;
1158         }
1159         printk(KERN_INFO "cx18:  End initialization\n");
1160         return 0;
1161 }
1162
1163 static void module_cleanup(void)
1164 {
1165         int i;
1166
1167         pci_unregister_driver(&cx18_pci_driver);
1168
1169         for (i = 0; i < cx18_cards_active; i++) {
1170                 if (cx18_cards[i] == NULL)
1171                         continue;
1172                 kfree(cx18_cards[i]);
1173         }
1174
1175 }
1176
1177 module_init(module_start);
1178 module_exit(module_cleanup);