git.oblomov.eu Git - linux-2.6/blob - 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 int mmio_ndelay[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
  79                                            -1, -1, -1, -1, -1, -1, -1, -1,
  80                                            -1, -1, -1, -1, -1, -1, -1, -1,
  81                                            -1, -1, -1, -1, -1, -1, -1, -1 };
  82 static unsigned cardtype_c = 1;
  83 static unsigned tuner_c = 1;
  84 static unsigned radio_c = 1;
  85 static unsigned mmio_ndelay_c = 1;
  86 static char pal[] = "--";
  87 static char secam[] = "--";
  88 static char ntsc[] = "-";
  89
  90 /* Buffers */
  91 static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
  92 static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
  93 static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS;
  94 static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS;
  95 static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS;
  96
  97 static int cx18_pci_latency = 1;
  98
  99 int cx18_retry_mmio = 1;
 100 int cx18_debug;
 101
 102 module_param_array(tuner, int, &tuner_c, 0644);
 103 module_param_array(radio, bool, &radio_c, 0644);
 104 module_param_array(cardtype, int, &cardtype_c, 0644);
 105 module_param_array(mmio_ndelay, int, &mmio_ndelay_c, 0644);
 106 module_param_string(pal, pal, sizeof(pal), 0644);
 107 module_param_string(secam, secam, sizeof(secam), 0644);
 108 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
 109 module_param_named(debug, cx18_debug, int, 0644);
 110 module_param_named(retry_mmio, cx18_retry_mmio, int, 0644);
 111 module_param(cx18_pci_latency, int, 0644);
 112 module_param(cx18_first_minor, int, 0644);
 113
 114 module_param(enc_mpg_buffers, int, 0644);
 115 module_param(enc_ts_buffers, int, 0644);
 116 module_param(enc_yuv_buffers, int, 0644);
 117 module_param(enc_vbi_buffers, int, 0644);
 118 module_param(enc_pcm_buffers, int, 0644);
 119
 120 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
 121                         "\t\t\tsee tuner.h for values");
 122 MODULE_PARM_DESC(radio,
 123                  "Enable or disable the radio. Use only if autodetection\n"
 124                  "\t\t\tfails. 0 = disable, 1 = enable");
 125 MODULE_PARM_DESC(cardtype,
 126                  "Only use this option if your card is not detected properly.\n"
 127                  "\t\tSpecify card type:\n"
 128                  "\t\t\t 1 = Hauppauge HVR 1600 (ESMT memory)\n"
 129                  "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n"
 130                  "\t\t\t 3 = Compro VideoMate H900\n"
 131                  "\t\t\t 4 = Yuan MPC718\n"
 132                  "\t\t\t 5 = Conexant Raptor PAL/SECAM\n"
 133                  "\t\t\t 6 = Toshiba Qosmio DVB-T/Analog\n"
 134                  "\t\t\t 7 = Leadtek WinFast PVR2100\n"
 135                  "\t\t\t 0 = Autodetect (default)\n"
 136                  "\t\t\t-1 = Ignore this card\n\t\t");
 137 MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60");
 138 MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC");
 139 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K");
 140 MODULE_PARM_DESC(debug,
 141                  "Debug level (bitmask). Default: 0\n"
 142                  "\t\t\t  1/0x0001: warning\n"
 143                  "\t\t\t  2/0x0002: info\n"
 144                  "\t\t\t  4/0x0004: mailbox\n"
 145                  "\t\t\t  8/0x0008: dma\n"
 146                  "\t\t\t 16/0x0010: ioctl\n"
 147                  "\t\t\t 32/0x0020: file\n"
 148                  "\t\t\t 64/0x0040: i2c\n"
 149                  "\t\t\t128/0x0080: irq\n"
 150                  "\t\t\t256/0x0100: high volume\n");
 151 MODULE_PARM_DESC(cx18_pci_latency,
 152                  "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
 153                  "\t\t\tDefault: Yes");
 154 MODULE_PARM_DESC(retry_mmio,
 155                  "Check and retry memory mapped IO accesses\n"
 156                  "\t\t\tDefault: 1 [Yes]");
 157 MODULE_PARM_DESC(mmio_ndelay,
 158                  "Delay (ns) for each CX23418 memory mapped IO access.\n"
 159                  "\t\t\tTry larger values that are close to a multiple of the\n"
 160                  "\t\t\tPCI clock period, 30.3 ns, if your card doesn't work.\n"
 161                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_MMIO_NDELAY));
 162 MODULE_PARM_DESC(enc_mpg_buffers,
 163                  "Encoder MPG Buffers (in MB)\n"
 164                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
 165 MODULE_PARM_DESC(enc_ts_buffers,
 166                  "Encoder TS Buffers (in MB)\n"
 167                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
 168 MODULE_PARM_DESC(enc_yuv_buffers,
 169                  "Encoder YUV Buffers (in MB)\n"
 170                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
 171 MODULE_PARM_DESC(enc_vbi_buffers,
 172                  "Encoder VBI Buffers (in MB)\n"
 173                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
 174 MODULE_PARM_DESC(enc_pcm_buffers,
 175                  "Encoder PCM buffers (in MB)\n"
 176                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));
 177
 178 MODULE_PARM_DESC(cx18_first_minor, "Set kernel number assigned to first card");
 179
 180 MODULE_AUTHOR("Hans Verkuil");
 181 MODULE_DESCRIPTION("CX23418 driver");
 182 MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
 183 MODULE_LICENSE("GPL");
 184
 185 MODULE_VERSION(CX18_VERSION);
 186
 187 /* Generic utility functions */
 188 int cx18_msleep_timeout(unsigned int msecs, int intr)
 189 {
 190         int timeout = msecs_to_jiffies(msecs);
 191         int sig;
 192
 193         do {
 194                 set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
 195                 timeout = schedule_timeout(timeout);
 196                 sig = intr ? signal_pending(current) : 0;
 197         } while (!sig && timeout);
 198         return sig;
 199 }
 200
 201 /* Release ioremapped memory */
 202 static void cx18_iounmap(struct cx18 *cx)
 203 {
 204         if (cx == NULL)
 205                 return;
 206
 207         /* Release io memory */
 208         if (cx->enc_mem != NULL) {
 209                 CX18_DEBUG_INFO("releasing enc_mem\n");
 210                 iounmap(cx->enc_mem);
 211                 cx->enc_mem = NULL;
 212         }
 213 }
 214
 215 /* Hauppauge card? get values from tveeprom */
 216 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
 217 {
 218         u8 eedata[256];
 219
 220         cx->i2c_client[0].addr = 0xA0 >> 1;
 221         tveeprom_read(&cx->i2c_client[0], eedata, sizeof(eedata));
 222         tveeprom_hauppauge_analog(&cx->i2c_client[0], tv, eedata);
 223 }
 224
 225 static void cx18_process_eeprom(struct cx18 *cx)
 226 {
 227         struct tveeprom tv;
 228
 229         cx18_read_eeprom(cx, &tv);
 230
 231         /* Many thanks to Steven Toth from Hauppauge for providing the
 232            model numbers */
 233         /* Note: the Samsung memory models cannot be reliably determined
 234            from the model number. Use the cardtype module option if you
 235            have one of these preproduction models. */
 236         switch (tv.model) {
 237         case 74000 ... 74999:
 238                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 239                 break;
 240         case 0:
 241                 CX18_ERR("Invalid EEPROM\n");
 242                 return;
 243         default:
 244                 CX18_ERR("Unknown model %d, defaulting to HVR-1600\n", tv.model);
 245                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 246                 break;
 247         }
 248
 249         cx->v4l2_cap = cx->card->v4l2_capabilities;
 250         cx->card_name = cx->card->name;
 251         cx->card_i2c = cx->card->i2c;
 252
 253         CX18_INFO("Autodetected %s\n", cx->card_name);
 254
 255         if (tv.tuner_type == TUNER_ABSENT)
 256                 CX18_ERR("tveeprom cannot autodetect tuner!");
 257
 258         if (cx->options.tuner == -1)
 259                 cx->options.tuner = tv.tuner_type;
 260         if (cx->options.radio == -1)
 261                 cx->options.radio = (tv.has_radio != 0);
 262
 263         if (cx->std != 0)
 264                 /* user specified tuner standard */
 265                 return;
 266
 267         /* autodetect tuner standard */
 268         if (tv.tuner_formats & V4L2_STD_PAL) {
 269                 CX18_DEBUG_INFO("PAL tuner detected\n");
 270                 cx->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
 271         } else if (tv.tuner_formats & V4L2_STD_NTSC) {
 272                 CX18_DEBUG_INFO("NTSC tuner detected\n");
 273                 cx->std |= V4L2_STD_NTSC_M;
 274         } else if (tv.tuner_formats & V4L2_STD_SECAM) {
 275                 CX18_DEBUG_INFO("SECAM tuner detected\n");
 276                 cx->std |= V4L2_STD_SECAM_L;
 277         } else {
 278                 CX18_INFO("No tuner detected, default to NTSC-M\n");
 279                 cx->std |= V4L2_STD_NTSC_M;
 280         }
 281 }
 282
 283 static v4l2_std_id cx18_parse_std(struct cx18 *cx)
 284 {
 285         switch (pal[0]) {
 286         case '6':
 287                 return V4L2_STD_PAL_60;
 288         case 'b':
 289         case 'B':
 290         case 'g':
 291         case 'G':
 292                 return V4L2_STD_PAL_BG;
 293         case 'h':
 294         case 'H':
 295                 return V4L2_STD_PAL_H;
 296         case 'n':
 297         case 'N':
 298                 if (pal[1] == 'c' || pal[1] == 'C')
 299                         return V4L2_STD_PAL_Nc;
 300                 return V4L2_STD_PAL_N;
 301         case 'i':
 302         case 'I':
 303                 return V4L2_STD_PAL_I;
 304         case 'd':
 305         case 'D':
 306         case 'k':
 307         case 'K':
 308                 return V4L2_STD_PAL_DK;
 309         case 'M':
 310         case 'm':
 311                 return V4L2_STD_PAL_M;
 312         case '-':
 313                 break;
 314         default:
 315                 CX18_WARN("pal= argument not recognised\n");
 316                 return 0;
 317         }
 318
 319         switch (secam[0]) {
 320         case 'b':
 321         case 'B':
 322         case 'g':
 323         case 'G':
 324         case 'h':
 325         case 'H':
 326                 return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
 327         case 'd':
 328         case 'D':
 329         case 'k':
 330         case 'K':
 331                 return V4L2_STD_SECAM_DK;
 332         case 'l':
 333         case 'L':
 334                 if (secam[1] == 'C' || secam[1] == 'c')
 335                         return V4L2_STD_SECAM_LC;
 336                 return V4L2_STD_SECAM_L;
 337         case '-':
 338                 break;
 339         default:
 340                 CX18_WARN("secam= argument not recognised\n");
 341                 return 0;
 342         }
 343
 344         switch (ntsc[0]) {
 345         case 'm':
 346         case 'M':
 347                 return V4L2_STD_NTSC_M;
 348         case 'j':
 349         case 'J':
 350                 return V4L2_STD_NTSC_M_JP;
 351         case 'k':
 352         case 'K':
 353                 return V4L2_STD_NTSC_M_KR;
 354         case '-':
 355                 break;
 356         default:
 357                 CX18_WARN("ntsc= argument not recognised\n");
 358                 return 0;
 359         }
 360
 361         /* no match found */
 362         return 0;
 363 }
 364
 365 static void cx18_process_options(struct cx18 *cx)
 366 {
 367         int i, j;
 368
 369         cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
 370         cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers;
 371         cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers;
 372         cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers;
 373         cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
 374         cx->options.cardtype = cardtype[cx->num];
 375         cx->options.tuner = tuner[cx->num];
 376         cx->options.radio = radio[cx->num];
 377
 378         if (mmio_ndelay[cx->num] < 0)
 379                 cx->options.mmio_ndelay = CX18_DEFAULT_MMIO_NDELAY;
 380         else
 381                 cx->options.mmio_ndelay = mmio_ndelay[cx->num];
 382
 383         cx->std = cx18_parse_std(cx);
 384         if (cx->options.cardtype == -1) {
 385                 CX18_INFO("Ignore card\n");
 386                 return;
 387         }
 388         cx->card = cx18_get_card(cx->options.cardtype - 1);
 389         if (cx->card)
 390                 CX18_INFO("User specified %s card\n", cx->card->name);
 391         else if (cx->options.cardtype != 0)
 392                 CX18_ERR("Unknown user specified type, trying to autodetect card\n");
 393         if (cx->card == NULL) {
 394                 if (cx->dev->subsystem_vendor == CX18_PCI_ID_HAUPPAUGE) {
 395                         cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 396                         CX18_INFO("Autodetected Hauppauge card\n");
 397                 }
 398         }
 399         if (cx->card == NULL) {
 400                 for (i = 0; (cx->card = cx18_get_card(i)); i++) {
 401                         if (cx->card->pci_list == NULL)
 402                                 continue;
 403                         for (j = 0; cx->card->pci_list[j].device; j++) {
 404                                 if (cx->dev->device !=
 405                                     cx->card->pci_list[j].device)
 406                                         continue;
 407                                 if (cx->dev->subsystem_vendor !=
 408                                     cx->card->pci_list[j].subsystem_vendor)
 409                                         continue;
 410                                 if (cx->dev->subsystem_device !=
 411                                     cx->card->pci_list[j].subsystem_device)
 412                                         continue;
 413                                 CX18_INFO("Autodetected %s card\n", cx->card->name);
 414                                 goto done;
 415                         }
 416                 }
 417         }
 418 done:
 419
 420         if (cx->card == NULL) {
 421                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 422                 CX18_ERR("Unknown card: vendor/device: [%04x:%04x]\n",
 423                      cx->dev->vendor, cx->dev->device);
 424                 CX18_ERR("              subsystem vendor/device: [%04x:%04x]\n",
 425                      cx->dev->subsystem_vendor, cx->dev->subsystem_device);
 426                 CX18_ERR("Defaulting to %s card\n", cx->card->name);
 427                 CX18_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
 428                 CX18_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
 429                 CX18_ERR("Prefix your subject line with [UNKNOWN CX18 CARD].\n");
 430         }
 431         cx->v4l2_cap = cx->card->v4l2_capabilities;
 432         cx->card_name = cx->card->name;
 433         cx->card_i2c = cx->card->i2c;
 434 }
 435
 436 /* Precondition: the cx18 structure has been memset to 0. Only
 437    the dev and num fields have been filled in.
 438    No assumptions on the card type may be made here (see cx18_init_struct2
 439    for that).
 440  */
 441 static int __devinit cx18_init_struct1(struct cx18 *cx)
 442 {
 443         cx->base_addr = pci_resource_start(cx->dev, 0);
 444
 445         mutex_init(&cx->serialize_lock);
 446         mutex_init(&cx->i2c_bus_lock[0]);
 447         mutex_init(&cx->i2c_bus_lock[1]);
 448         mutex_init(&cx->gpio_lock);
 449
 450         spin_lock_init(&cx->lock);
 451         spin_lock_init(&cx->dma_reg_lock);
 452
 453         /* start counting open_id at 1 */
 454         cx->open_id = 1;
 455
 456         /* Initial settings */
 457         cx2341x_fill_defaults(&cx->params);
 458         cx->temporal_strength = cx->params.video_temporal_filter;
 459         cx->spatial_strength = cx->params.video_spatial_filter;
 460         cx->filter_mode = cx->params.video_spatial_filter_mode |
 461                 (cx->params.video_temporal_filter_mode << 1) |
 462                 (cx->params.video_median_filter_type << 2);
 463         cx->params.port = CX2341X_PORT_MEMORY;
 464         cx->params.capabilities = CX2341X_CAP_HAS_TS;
 465         init_waitqueue_head(&cx->cap_w);
 466         init_waitqueue_head(&cx->mb_apu_waitq);
 467         init_waitqueue_head(&cx->mb_cpu_waitq);
 468         init_waitqueue_head(&cx->mb_epu_waitq);
 469         init_waitqueue_head(&cx->mb_hpu_waitq);
 470         init_waitqueue_head(&cx->dma_waitq);
 471
 472         /* VBI */
 473         cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
 474         cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
 475         cx->vbi.raw_size = 1456;
 476         cx->vbi.raw_decoder_line_size = 1456;
 477         cx->vbi.raw_decoder_sav_odd_field = 0x20;
 478         cx->vbi.raw_decoder_sav_even_field = 0x60;
 479         cx->vbi.sliced_decoder_line_size = 272;
 480         cx->vbi.sliced_decoder_sav_odd_field = 0xB0;
 481         cx->vbi.sliced_decoder_sav_even_field = 0xF0;
 482         return 0;
 483 }
 484
 485 /* Second initialization part. Here the card type has been
 486    autodetected. */
 487 static void __devinit cx18_init_struct2(struct cx18 *cx)
 488 {
 489         int i;
 490
 491         for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS; i++)
 492                 if (cx->card->video_inputs[i].video_type == 0)
 493                         break;
 494         cx->nof_inputs = i;
 495         for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS; i++)
 496                 if (cx->card->audio_inputs[i].audio_type == 0)
 497                         break;
 498         cx->nof_audio_inputs = i;
 499
 500         /* Find tuner input */
 501         for (i = 0; i < cx->nof_inputs; i++) {
 502                 if (cx->card->video_inputs[i].video_type ==
 503                                 CX18_CARD_INPUT_VID_TUNER)
 504                         break;
 505         }
 506         if (i == cx->nof_inputs)
 507                 i = 0;
 508         cx->active_input = i;
 509         cx->audio_input = cx->card->video_inputs[i].audio_index;
 510         cx->av_state.vid_input = CX18_AV_COMPOSITE7;
 511         cx->av_state.aud_input = CX18_AV_AUDIO8;
 512         cx->av_state.audclk_freq = 48000;
 513         cx->av_state.audmode = V4L2_TUNER_MODE_LANG1;
 514         cx->av_state.vbi_line_offset = 8;
 515 }
 516
 517 static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
 518                           const struct pci_device_id *pci_id)
 519 {
 520         u16 cmd;
 521         unsigned char pci_latency;
 522
 523         CX18_DEBUG_INFO("Enabling pci device\n");
 524
 525         if (pci_enable_device(dev)) {
 526                 CX18_ERR("Can't enable device %d!\n", cx->num);
 527                 return -EIO;
 528         }
 529         if (pci_set_dma_mask(dev, 0xffffffff)) {
 530                 CX18_ERR("No suitable DMA available on card %d.\n", cx->num);
 531                 return -EIO;
 532         }
 533         if (!request_mem_region(cx->base_addr, CX18_MEM_SIZE, "cx18 encoder")) {
 534                 CX18_ERR("Cannot request encoder memory region on card %d.\n", cx->num);
 535                 return -EIO;
 536         }
 537
 538         /* Enable bus mastering and memory mapped IO for the CX23418 */
 539         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 540         cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
 541         pci_write_config_word(dev, PCI_COMMAND, cmd);
 542
 543         pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev);
 544         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 545
 546         if (pci_latency < 64 && cx18_pci_latency) {
 547                 CX18_INFO("Unreasonably low latency timer, "
 548                                "setting to 64 (was %d)\n", pci_latency);
 549                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
 550                 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 551         }
 552
 553         CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
 554                    "irq: %d, latency: %d, memory: 0x%lx\n",
 555                    cx->dev->device, cx->card_rev, dev->bus->number,
 556                    PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn),
 557                    cx->dev->irq, pci_latency, (unsigned long)cx->base_addr);
 558
 559         return 0;
 560 }
 561
 562 #ifdef MODULE
 563 static u32 cx18_request_module(struct cx18 *cx, u32 hw,
 564                 const char *name, u32 id)
 565 {
 566         if ((hw & id) == 0)
 567                 return hw;
 568         if (request_module(name) != 0) {
 569                 CX18_ERR("Failed to load module %s\n", name);
 570                 return hw & ~id;
 571         }
 572         CX18_DEBUG_INFO("Loaded module %s\n", name);
 573         return hw;
 574 }
 575 #endif
 576
 577 static void cx18_load_and_init_modules(struct cx18 *cx)
 578 {
 579         u32 hw = cx->card->hw_all;
 580         int i;
 581
 582 #ifdef MODULE
 583         /* load modules */
 584 #ifndef CONFIG_MEDIA_TUNER
 585         hw = cx18_request_module(cx, hw, "tuner", CX18_HW_TUNER);
 586 #endif
 587 #ifndef CONFIG_VIDEO_CS5345
 588         hw = cx18_request_module(cx, hw, "cs5345", CX18_HW_CS5345);
 589 #endif
 590 #endif
 591
 592         /* check which i2c devices are actually found */
 593         for (i = 0; i < 32; i++) {
 594                 u32 device = 1 << i;
 595
 596                 if (!(device & hw))
 597                         continue;
 598                 if (device == CX18_HW_GPIO || device == CX18_HW_TVEEPROM ||
 599                     device == CX18_HW_CX23418 || device == CX18_HW_DVB) {
 600                         /* These 'devices' do not use i2c probing */
 601                         cx->hw_flags |= device;
 602                         continue;
 603                 }
 604                 cx18_i2c_register(cx, i);
 605                 if (cx18_i2c_hw_addr(cx, device) > 0)
 606                         cx->hw_flags |= device;
 607         }
 608
 609         hw = cx->hw_flags;
 610 }
 611
 612 static int __devinit cx18_probe(struct pci_dev *dev,
 613                                 const struct pci_device_id *pci_id)
 614 {
 615         int retval = 0;
 616         int i;
 617         int vbi_buf_size;
 618         u32 devtype;
 619         struct cx18 *cx;
 620
 621         spin_lock(&cx18_cards_lock);
 622
 623         /* Make sure we've got a place for this card */
 624         if (cx18_cards_active == CX18_MAX_CARDS) {
 625                 printk(KERN_ERR "cx18:  Maximum number of cards detected (%d).\n",
 626                               cx18_cards_active);
 627                 spin_unlock(&cx18_cards_lock);
 628                 return -ENOMEM;
 629         }
 630
 631         cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
 632         if (!cx) {
 633                 spin_unlock(&cx18_cards_lock);
 634                 return -ENOMEM;
 635         }
 636         cx18_cards[cx18_cards_active] = cx;
 637         cx->dev = dev;
 638         cx->num = cx18_cards_active++;
 639         snprintf(cx->name, sizeof(cx->name), "cx18-%d", cx->num);
 640         CX18_INFO("Initializing card #%d\n", cx->num);
 641
 642         spin_unlock(&cx18_cards_lock);
 643
 644         cx18_process_options(cx);
 645         if (cx->options.cardtype == -1) {
 646                 retval = -ENODEV;
 647                 goto err;
 648         }
 649         if (cx18_init_struct1(cx)) {
 650                 retval = -ENOMEM;
 651                 goto err;
 652         }
 653
 654         CX18_DEBUG_INFO("base addr: 0x%08x\n", cx->base_addr);
 655
 656         /* PCI Device Setup */
 657         retval = cx18_setup_pci(cx, dev, pci_id);
 658         if (retval != 0) {
 659                 if (retval == -EIO)
 660                         goto free_workqueue;
 661                 else if (retval == -ENXIO)
 662                         goto free_mem;
 663         }
 664         /* save cx in the pci struct for later use */
 665         pci_set_drvdata(dev, cx);
 666
 667         /* map io memory */
 668         CX18_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n",
 669                    cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE);
 670         cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET,
 671                                        CX18_MEM_SIZE);
 672         if (!cx->enc_mem) {
 673                 CX18_ERR("ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h\n");
 674                 CX18_ERR("or disabling CONFIG_HIGHMEM4G into the kernel would help\n");
 675                 retval = -ENOMEM;
 676                 goto free_mem;
 677         }
 678         cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET;
 679         devtype = cx18_read_reg(cx, 0xC72028);
 680         switch (devtype & 0xff000000) {
 681         case 0xff000000:
 682                 CX18_INFO("cx23418 revision %08x (A)\n", devtype);
 683                 break;
 684         case 0x01000000:
 685                 CX18_INFO("cx23418 revision %08x (B)\n", devtype);
 686                 break;
 687         default:
 688                 CX18_INFO("cx23418 revision %08x (Unknown)\n", devtype);
 689                 break;
 690         }
 691
 692         cx18_init_power(cx, 1);
 693         cx18_init_memory(cx);
 694
 695         cx->scb = (struct cx18_scb __iomem *)(cx->enc_mem + SCB_OFFSET);
 696         cx18_init_scb(cx);
 697
 698         cx18_gpio_init(cx);
 699
 700         /* active i2c  */
 701         CX18_DEBUG_INFO("activating i2c...\n");
 702         retval = init_cx18_i2c(cx);
 703         if (retval) {
 704                 CX18_ERR("Could not initialize i2c\n");
 705                 goto free_map;
 706         }
 707
 708         CX18_DEBUG_INFO("Active card count: %d.\n", cx18_cards_active);
 709
 710         if (cx->card->hw_all & CX18_HW_TVEEPROM) {
 711                 /* Based on the model number the cardtype may be changed.
 712                    The PCI IDs are not always reliable. */
 713                 cx18_process_eeprom(cx);
 714         }
 715         if (cx->card->comment)
 716                 CX18_INFO("%s", cx->card->comment);
 717         if (cx->card->v4l2_capabilities == 0) {
 718                 retval = -ENODEV;
 719                 goto free_i2c;
 720         }
 721         cx18_init_memory(cx);
 722
 723         /* Register IRQ */
 724         retval = request_irq(cx->dev->irq, cx18_irq_handler,
 725                              IRQF_SHARED | IRQF_DISABLED, cx->name, (void *)cx);
 726         if (retval) {
 727                 CX18_ERR("Failed to register irq %d\n", retval);
 728                 goto free_i2c;
 729         }
 730
 731         if (cx->std == 0)
 732                 cx->std = V4L2_STD_NTSC_M;
 733
 734         if (cx->options.tuner == -1) {
 735                 int i;
 736
 737                 for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) {
 738                         if ((cx->std & cx->card->tuners[i].std) == 0)
 739                                 continue;
 740                         cx->options.tuner = cx->card->tuners[i].tuner;
 741                         break;
 742                 }
 743         }
 744         /* if no tuner was found, then pick the first tuner in the card list */
 745         if (cx->options.tuner == -1 && cx->card->tuners[0].std) {
 746                 cx->std = cx->card->tuners[0].std;
 747                 if (cx->std & V4L2_STD_PAL)
 748                         cx->std = V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
 749                 else if (cx->std & V4L2_STD_NTSC)
 750                         cx->std = V4L2_STD_NTSC_M;
 751                 else if (cx->std & V4L2_STD_SECAM)
 752                         cx->std = V4L2_STD_SECAM_L;
 753                 cx->options.tuner = cx->card->tuners[0].tuner;
 754         }
 755         if (cx->options.radio == -1)
 756                 cx->options.radio = (cx->card->radio_input.audio_type != 0);
 757
 758         /* The card is now fully identified, continue with card-specific
 759            initialization. */
 760         cx18_init_struct2(cx);
 761
 762         cx18_load_and_init_modules(cx);
 763
 764         if (cx->std & V4L2_STD_525_60) {
 765                 cx->is_60hz = 1;
 766                 cx->is_out_60hz = 1;
 767         } else {
 768                 cx->is_50hz = 1;
 769                 cx->is_out_50hz = 1;
 770         }
 771         cx->params.video_gop_size = cx->is_60hz ? 15 : 12;
 772
 773         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = 0x08000;
 774         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = 0x08000;
 775         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = 0x01200;
 776         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = 0x20000;
 777         vbi_buf_size = cx->vbi.raw_size * (cx->is_60hz ? 24 : 36) / 2;
 778         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
 779
 780         if (cx->options.radio > 0)
 781                 cx->v4l2_cap |= V4L2_CAP_RADIO;
 782
 783         if (cx->options.tuner > -1) {
 784                 struct tuner_setup setup;
 785
 786                 setup.addr = ADDR_UNSET;
 787                 setup.type = cx->options.tuner;
 788                 setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
 789                 setup.tuner_callback = (setup.type == TUNER_XC2028) ?
 790                         cx18_reset_tuner_gpio : NULL;
 791                 cx18_call_i2c_clients(cx, TUNER_SET_TYPE_ADDR, &setup);
 792                 if (setup.type == TUNER_XC2028) {
 793                         static struct xc2028_ctrl ctrl = {
 794                                 .fname = XC2028_DEFAULT_FIRMWARE,
 795                                 .max_len = 64,
 796                         };
 797                         struct v4l2_priv_tun_config cfg = {
 798                                 .tuner = cx->options.tuner,
 799                                 .priv = &ctrl,
 800                         };
 801                         cx18_call_i2c_clients(cx, TUNER_SET_CONFIG, &cfg);
 802                 }
 803         }
 804
 805         /* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
 806            are not. */
 807         cx->tuner_std = cx->std;
 808
 809         retval = cx18_streams_setup(cx);
 810         if (retval) {
 811                 CX18_ERR("Error %d setting up streams\n", retval);
 812                 goto free_irq;
 813         }
 814         retval = cx18_streams_register(cx);
 815         if (retval) {
 816                 CX18_ERR("Error %d registering devices\n", retval);
 817                 goto free_streams;
 818         }
 819
 820         CX18_INFO("Initialized card #%d: %s\n", cx->num, cx->card_name);
 821
 822         return 0;
 823
 824 free_streams:
 825         cx18_streams_cleanup(cx, 1);
 826 free_irq:
 827         free_irq(cx->dev->irq, (void *)cx);
 828 free_i2c:
 829         exit_cx18_i2c(cx);
 830 free_map:
 831         cx18_iounmap(cx);
 832 free_mem:
 833         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
 834 free_workqueue:
 835 err:
 836         if (retval == 0)
 837                 retval = -ENODEV;
 838         CX18_ERR("Error %d on initialization\n", retval);
 839         cx18_log_statistics(cx);
 840
 841         i = cx->num;
 842         spin_lock(&cx18_cards_lock);
 843         kfree(cx18_cards[i]);
 844         cx18_cards[i] = NULL;
 845         spin_unlock(&cx18_cards_lock);
 846         return retval;
 847 }
 848
 849 int cx18_init_on_first_open(struct cx18 *cx)
 850 {
 851         int video_input;
 852         int fw_retry_count = 3;
 853         struct v4l2_frequency vf;
 854         struct cx18_open_id fh;
 855
 856         fh.cx = cx;
 857
 858         if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
 859                 return -ENXIO;
 860
 861         if (test_and_set_bit(CX18_F_I_INITED, &cx->i_flags))
 862                 return 0;
 863
 864         while (--fw_retry_count > 0) {
 865                 /* load firmware */
 866                 if (cx18_firmware_init(cx) == 0)
 867                         break;
 868                 if (fw_retry_count > 1)
 869                         CX18_WARN("Retry loading firmware\n");
 870         }
 871
 872         if (fw_retry_count == 0) {
 873                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
 874                 return -ENXIO;
 875         }
 876         set_bit(CX18_F_I_LOADED_FW, &cx->i_flags);
 877
 878         /* Init the firmware twice to work around a silicon bug
 879          * transport related. */
 880
 881         fw_retry_count = 3;
 882         while (--fw_retry_count > 0) {
 883                 /* load firmware */
 884                 if (cx18_firmware_init(cx) == 0)
 885                         break;
 886                 if (fw_retry_count > 1)
 887                         CX18_WARN("Retry loading firmware\n");
 888         }
 889
 890         if (fw_retry_count == 0) {
 891                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
 892                 return -ENXIO;
 893         }
 894
 895         vf.tuner = 0;
 896         vf.type = V4L2_TUNER_ANALOG_TV;
 897         vf.frequency = 6400; /* the tuner 'baseline' frequency */
 898
 899         /* Set initial frequency. For PAL/SECAM broadcasts no
 900            'default' channel exists AFAIK. */
 901         if (cx->std == V4L2_STD_NTSC_M_JP)
 902                 vf.frequency = 1460;    /* ch. 1 91250*16/1000 */
 903         else if (cx->std & V4L2_STD_NTSC_M)
 904                 vf.frequency = 1076;    /* ch. 4 67250*16/1000 */
 905
 906         video_input = cx->active_input;
 907         cx->active_input++;     /* Force update of input */
 908         cx18_s_input(NULL, &fh, video_input);
 909
 910         /* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
 911            in one place. */
 912         cx->std++;              /* Force full standard initialization */
 913         cx18_s_std(NULL, &fh, &cx->tuner_std);
 914         cx18_s_frequency(NULL, &fh, &vf);
 915         return 0;
 916 }
 917
 918 static void cx18_remove(struct pci_dev *pci_dev)
 919 {
 920         struct cx18 *cx = pci_get_drvdata(pci_dev);
 921
 922         CX18_DEBUG_INFO("Removing Card #%d\n", cx->num);
 923
 924         /* Stop all captures */
 925         CX18_DEBUG_INFO("Stopping all streams\n");
 926         if (atomic_read(&cx->tot_capturing) > 0)
 927                 cx18_stop_all_captures(cx);
 928
 929         /* Interrupts */
 930         cx18_sw1_irq_disable(cx, IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
 931         cx18_sw2_irq_disable(cx, IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
 932
 933         cx18_halt_firmware(cx);
 934
 935         cx18_streams_cleanup(cx, 1);
 936
 937         exit_cx18_i2c(cx);
 938
 939         free_irq(cx->dev->irq, (void *)cx);
 940
 941         cx18_iounmap(cx);
 942
 943         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
 944
 945         pci_disable_device(cx->dev);
 946
 947         cx18_log_statistics(cx);
 948         CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num);
 949 }
 950
 951 /* define a pci_driver for card detection */
 952 static struct pci_driver cx18_pci_driver = {
 953       .name =     "cx18",
 954       .id_table = cx18_pci_tbl,
 955       .probe =    cx18_probe,
 956       .remove =   cx18_remove,
 957 };
 958
 959 static int module_start(void)
 960 {
 961         printk(KERN_INFO "cx18:  Start initialization, version %s\n", CX18_VERSION);
 962
 963         memset(cx18_cards, 0, sizeof(cx18_cards));
 964
 965         /* Validate parameters */
 966         if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
 967                 printk(KERN_ERR "cx18:  Exiting, cx18_first_minor must be between 0 and %d\n",
 968                      CX18_MAX_CARDS - 1);
 969                 return -1;
 970         }
 971
 972         if (cx18_debug < 0 || cx18_debug > 511) {
 973                 cx18_debug = 0;
 974                 printk(KERN_INFO "cx18:   Debug value must be >= 0 and <= 511!\n");
 975         }
 976
 977         if (pci_register_driver(&cx18_pci_driver)) {
 978                 printk(KERN_ERR "cx18:   Error detecting PCI card\n");
 979                 return -ENODEV;
 980         }
 981         printk(KERN_INFO "cx18:  End initialization\n");
 982         return 0;
 983 }
 984
 985 static void module_cleanup(void)
 986 {
 987         int i;
 988
 989         pci_unregister_driver(&cx18_pci_driver);
 990
 991         for (i = 0; i < cx18_cards_active; i++) {
 992                 if (cx18_cards[i] == NULL)
 993                         continue;
 994                 kfree(cx18_cards[i]);
 995         }
 996 }
 997
 998 module_init(module_start);
 999 module_exit(module_cleanup);