SAFE public projects git trees. - safe/jmp/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  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  21  *  02111-1307  USA
  22  */
  23
  24 #include "cx18-driver.h"
  25 #include "cx18-version.h"
  26 #include "cx18-cards.h"
  27 #include "cx18-i2c.h"
  28 #include "cx18-irq.h"
  29 #include "cx18-gpio.h"
  30 #include "cx18-firmware.h"
  31 #include "cx18-streams.h"
  32 #include "cx18-av-core.h"
  33 #include "cx18-scb.h"
  34 #include "cx18-mailbox.h"
  35 #include "cx18-ioctl.h"
  36 #include "tuner-xc2028.h"
  37
  38 #include <media/tveeprom.h>
  39
  40
  41 /* var to keep track of the number of array elements in use */
  42 int cx18_cards_active;
  43
  44 /* If you have already X v4l cards, then set this to X. This way
  45    the device numbers stay matched. Example: you have a WinTV card
  46    without radio and a Compro H900 with. Normally this would give a
  47    video1 device together with a radio0 device for the Compro. By
  48    setting this to 1 you ensure that radio0 is now also radio1. */
  49 int cx18_first_minor;
  50
  51 /* Master variable for all cx18 info */
  52 struct cx18 *cx18_cards[CX18_MAX_CARDS];
  53
  54 /* Protects cx18_cards_active */
  55 DEFINE_SPINLOCK(cx18_cards_lock);
  56
  57 /* add your revision and whatnot here */
  58 static struct pci_device_id cx18_pci_tbl[] __devinitdata = {
  59         {PCI_VENDOR_ID_CX, PCI_DEVICE_ID_CX23418,
  60          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
  61         {0,}
  62 };
  63
  64 MODULE_DEVICE_TABLE(pci, cx18_pci_tbl);
  65
  66 /* Parameter declarations */
  67 static int cardtype[CX18_MAX_CARDS];
  68 static int tuner[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
  69                                      -1, -1, -1, -1, -1, -1, -1, -1,
  70                                      -1, -1, -1, -1, -1, -1, -1, -1,
  71                                      -1, -1, -1, -1, -1, -1, -1, -1 };
  72 static int radio[CX18_MAX_CARDS] = { -1, -1, -1, -1, -1, -1, -1, -1,
  73                                      -1, -1, -1, -1, -1, -1, -1, -1,
  74                                      -1, -1, -1, -1, -1, -1, -1, -1,
  75                                      -1, -1, -1, -1, -1, -1, -1, -1 };
  76
  77 static int cardtype_c = 1;
  78 static int tuner_c = 1;
  79 static int radio_c = 1;
  80 static char pal[] = "--";
  81 static char secam[] = "--";
  82 static char ntsc[] = "-";
  83
  84 /* Buffers */
  85 static int enc_mpg_buffers = CX18_DEFAULT_ENC_MPG_BUFFERS;
  86 static int enc_ts_buffers = CX18_DEFAULT_ENC_TS_BUFFERS;
  87 static int enc_yuv_buffers = CX18_DEFAULT_ENC_YUV_BUFFERS;
  88 static int enc_vbi_buffers = CX18_DEFAULT_ENC_VBI_BUFFERS;
  89 static int enc_pcm_buffers = CX18_DEFAULT_ENC_PCM_BUFFERS;
  90
  91 static int cx18_pci_latency = 1;
  92
  93 int cx18_debug;
  94
  95 module_param_array(tuner, int, &tuner_c, 0644);
  96 module_param_array(radio, bool, &radio_c, 0644);
  97 module_param_array(cardtype, int, &cardtype_c, 0644);
  98 module_param_string(pal, pal, sizeof(pal), 0644);
  99 module_param_string(secam, secam, sizeof(secam), 0644);
 100 module_param_string(ntsc, ntsc, sizeof(ntsc), 0644);
 101 module_param_named(debug, cx18_debug, int, 0644);
 102 module_param(cx18_pci_latency, int, 0644);
 103 module_param(cx18_first_minor, int, 0644);
 104
 105 module_param(enc_mpg_buffers, int, 0644);
 106 module_param(enc_ts_buffers, int, 0644);
 107 module_param(enc_yuv_buffers, int, 0644);
 108 module_param(enc_vbi_buffers, int, 0644);
 109 module_param(enc_pcm_buffers, int, 0644);
 110
 111 MODULE_PARM_DESC(tuner, "Tuner type selection,\n"
 112                         "\t\t\tsee tuner.h for values");
 113 MODULE_PARM_DESC(radio,
 114                  "Enable or disable the radio. Use only if autodetection\n"
 115                  "\t\t\tfails. 0 = disable, 1 = enable");
 116 MODULE_PARM_DESC(cardtype,
 117                  "Only use this option if your card is not detected properly.\n"
 118                  "\t\tSpecify card type:\n"
 119                  "\t\t\t 1 = Hauppauge HVR 1600 (ESMT memory)\n"
 120                  "\t\t\t 2 = Hauppauge HVR 1600 (Samsung memory)\n"
 121                  "\t\t\t 3 = Compro VideoMate H900\n"
 122                  "\t\t\t 4 = Yuan MPC718\n"
 123                  "\t\t\t 0 = Autodetect (default)\n"
 124                  "\t\t\t-1 = Ignore this card\n\t\t");
 125 MODULE_PARM_DESC(pal, "Set PAL standard: B, G, H, D, K, I, M, N, Nc, 60");
 126 MODULE_PARM_DESC(secam, "Set SECAM standard: B, G, H, D, K, L, LC");
 127 MODULE_PARM_DESC(ntsc, "Set NTSC standard: M, J, K");
 128 MODULE_PARM_DESC(debug,
 129                  "Debug level (bitmask). Default: 0\n"
 130                  "\t\t\t  1/0x0001: warning\n"
 131                  "\t\t\t  2/0x0002: info\n"
 132                  "\t\t\t  4/0x0004: mailbox\n"
 133                  "\t\t\t  8/0x0008: dma\n"
 134                  "\t\t\t 16/0x0010: ioctl\n"
 135                  "\t\t\t 32/0x0020: file\n"
 136                  "\t\t\t 64/0x0040: i2c\n"
 137                  "\t\t\t128/0x0080: irq\n"
 138                  "\t\t\t256/0x0100: high volume\n");
 139 MODULE_PARM_DESC(cx18_pci_latency,
 140                  "Change the PCI latency to 64 if lower: 0 = No, 1 = Yes,\n"
 141                  "\t\t\tDefault: Yes");
 142 MODULE_PARM_DESC(enc_mpg_buffers,
 143                  "Encoder MPG Buffers (in MB)\n"
 144                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_MPG_BUFFERS));
 145 MODULE_PARM_DESC(enc_ts_buffers,
 146                  "Encoder TS Buffers (in MB)\n"
 147                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_TS_BUFFERS));
 148 MODULE_PARM_DESC(enc_yuv_buffers,
 149                  "Encoder YUV Buffers (in MB)\n"
 150                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_YUV_BUFFERS));
 151 MODULE_PARM_DESC(enc_vbi_buffers,
 152                  "Encoder VBI Buffers (in MB)\n"
 153                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS));
 154 MODULE_PARM_DESC(enc_pcm_buffers,
 155                  "Encoder PCM buffers (in MB)\n"
 156                  "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS));
 157
 158 MODULE_PARM_DESC(cx18_first_minor, "Set minor assigned to first card");
 159
 160 MODULE_AUTHOR("Hans Verkuil");
 161 MODULE_DESCRIPTION("CX23418 driver");
 162 MODULE_SUPPORTED_DEVICE("CX23418 MPEG2 encoder");
 163 MODULE_LICENSE("GPL");
 164
 165 MODULE_VERSION(CX18_VERSION);
 166
 167 /* Generic utility functions */
 168 int cx18_msleep_timeout(unsigned int msecs, int intr)
 169 {
 170         int timeout = msecs_to_jiffies(msecs);
 171         int sig;
 172
 173         do {
 174                 set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
 175                 timeout = schedule_timeout(timeout);
 176                 sig = intr ? signal_pending(current) : 0;
 177         } while (!sig && timeout);
 178         return sig;
 179 }
 180
 181 /* Release ioremapped memory */
 182 static void cx18_iounmap(struct cx18 *cx)
 183 {
 184         if (cx == NULL)
 185                 return;
 186
 187         /* Release io memory */
 188         if (cx->enc_mem != NULL) {
 189                 CX18_DEBUG_INFO("releasing enc_mem\n");
 190                 iounmap(cx->enc_mem);
 191                 cx->enc_mem = NULL;
 192         }
 193 }
 194
 195 /* Hauppauge card? get values from tveeprom */
 196 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
 197 {
 198         u8 eedata[256];
 199
 200         cx->i2c_client[0].addr = 0xA0 >> 1;
 201         tveeprom_read(&cx->i2c_client[0], eedata, sizeof(eedata));
 202         tveeprom_hauppauge_analog(&cx->i2c_client[0], tv, eedata);
 203 }
 204
 205 static void cx18_process_eeprom(struct cx18 *cx)
 206 {
 207         struct tveeprom tv;
 208
 209         cx18_read_eeprom(cx, &tv);
 210
 211         /* Many thanks to Steven Toth from Hauppauge for providing the
 212            model numbers */
 213         /* Note: the Samsung memory models cannot be reliably determined
 214            from the model number. Use the cardtype module option if you
 215            have one of these preproduction models. */
 216         switch (tv.model) {
 217         case 74000 ... 74999:
 218                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 219                 break;
 220         case 0:
 221                 CX18_ERR("Invalid EEPROM\n");
 222                 return;
 223         default:
 224                 CX18_ERR("Unknown model %d, defaulting to HVR-1600\n", tv.model);
 225                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 226                 break;
 227         }
 228
 229         cx->v4l2_cap = cx->card->v4l2_capabilities;
 230         cx->card_name = cx->card->name;
 231         cx->card_i2c = cx->card->i2c;
 232
 233         CX18_INFO("Autodetected %s\n", cx->card_name);
 234
 235         if (tv.tuner_type == TUNER_ABSENT)
 236                 CX18_ERR("tveeprom cannot autodetect tuner!");
 237
 238         if (cx->options.tuner == -1)
 239                 cx->options.tuner = tv.tuner_type;
 240         if (cx->options.radio == -1)
 241                 cx->options.radio = (tv.has_radio != 0);
 242
 243         if (cx->std != 0)
 244                 /* user specified tuner standard */
 245                 return;
 246
 247         /* autodetect tuner standard */
 248         if (tv.tuner_formats & V4L2_STD_PAL) {
 249                 CX18_DEBUG_INFO("PAL tuner detected\n");
 250                 cx->std |= V4L2_STD_PAL_BG | V4L2_STD_PAL_H;
 251         } else if (tv.tuner_formats & V4L2_STD_NTSC) {
 252                 CX18_DEBUG_INFO("NTSC tuner detected\n");
 253                 cx->std |= V4L2_STD_NTSC_M;
 254         } else if (tv.tuner_formats & V4L2_STD_SECAM) {
 255                 CX18_DEBUG_INFO("SECAM tuner detected\n");
 256                 cx->std |= V4L2_STD_SECAM_L;
 257         } else {
 258                 CX18_INFO("No tuner detected, default to NTSC-M\n");
 259                 cx->std |= V4L2_STD_NTSC_M;
 260         }
 261 }
 262
 263 static v4l2_std_id cx18_parse_std(struct cx18 *cx)
 264 {
 265         switch (pal[0]) {
 266         case '6':
 267                 return V4L2_STD_PAL_60;
 268         case 'b':
 269         case 'B':
 270         case 'g':
 271         case 'G':
 272                 return V4L2_STD_PAL_BG;
 273         case 'h':
 274         case 'H':
 275                 return V4L2_STD_PAL_H;
 276         case 'n':
 277         case 'N':
 278                 if (pal[1] == 'c' || pal[1] == 'C')
 279                         return V4L2_STD_PAL_Nc;
 280                 return V4L2_STD_PAL_N;
 281         case 'i':
 282         case 'I':
 283                 return V4L2_STD_PAL_I;
 284         case 'd':
 285         case 'D':
 286         case 'k':
 287         case 'K':
 288                 return V4L2_STD_PAL_DK;
 289         case 'M':
 290         case 'm':
 291                 return V4L2_STD_PAL_M;
 292         case '-':
 293                 break;
 294         default:
 295                 CX18_WARN("pal= argument not recognised\n");
 296                 return 0;
 297         }
 298
 299         switch (secam[0]) {
 300         case 'b':
 301         case 'B':
 302         case 'g':
 303         case 'G':
 304         case 'h':
 305         case 'H':
 306                 return V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H;
 307         case 'd':
 308         case 'D':
 309         case 'k':
 310         case 'K':
 311                 return V4L2_STD_SECAM_DK;
 312         case 'l':
 313         case 'L':
 314                 if (secam[1] == 'C' || secam[1] == 'c')
 315                         return V4L2_STD_SECAM_LC;
 316                 return V4L2_STD_SECAM_L;
 317         case '-':
 318                 break;
 319         default:
 320                 CX18_WARN("secam= argument not recognised\n");
 321                 return 0;
 322         }
 323
 324         switch (ntsc[0]) {
 325         case 'm':
 326         case 'M':
 327                 return V4L2_STD_NTSC_M;
 328         case 'j':
 329         case 'J':
 330                 return V4L2_STD_NTSC_M_JP;
 331         case 'k':
 332         case 'K':
 333                 return V4L2_STD_NTSC_M_KR;
 334         case '-':
 335                 break;
 336         default:
 337                 CX18_WARN("ntsc= argument not recognised\n");
 338                 return 0;
 339         }
 340
 341         /* no match found */
 342         return 0;
 343 }
 344
 345 static void cx18_process_options(struct cx18 *cx)
 346 {
 347         int i, j;
 348
 349         cx->options.megabytes[CX18_ENC_STREAM_TYPE_MPG] = enc_mpg_buffers;
 350         cx->options.megabytes[CX18_ENC_STREAM_TYPE_TS] = enc_ts_buffers;
 351         cx->options.megabytes[CX18_ENC_STREAM_TYPE_YUV] = enc_yuv_buffers;
 352         cx->options.megabytes[CX18_ENC_STREAM_TYPE_VBI] = enc_vbi_buffers;
 353         cx->options.megabytes[CX18_ENC_STREAM_TYPE_PCM] = enc_pcm_buffers;
 354         cx->options.cardtype = cardtype[cx->num];
 355         cx->options.tuner = tuner[cx->num];
 356         cx->options.radio = radio[cx->num];
 357
 358         cx->std = cx18_parse_std(cx);
 359         if (cx->options.cardtype == -1) {
 360                 CX18_INFO("Ignore card\n");
 361                 return;
 362         }
 363         cx->card = cx18_get_card(cx->options.cardtype - 1);
 364         if (cx->card)
 365                 CX18_INFO("User specified %s card\n", cx->card->name);
 366         else if (cx->options.cardtype != 0)
 367                 CX18_ERR("Unknown user specified type, trying to autodetect card\n");
 368         if (cx->card == NULL) {
 369                 if (cx->dev->subsystem_vendor == CX18_PCI_ID_HAUPPAUGE) {
 370                         cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 371                         CX18_INFO("Autodetected Hauppauge card\n");
 372                 }
 373         }
 374         if (cx->card == NULL) {
 375                 for (i = 0; (cx->card = cx18_get_card(i)); i++) {
 376                         if (cx->card->pci_list == NULL)
 377                                 continue;
 378                         for (j = 0; cx->card->pci_list[j].device; j++) {
 379                                 if (cx->dev->device !=
 380                                     cx->card->pci_list[j].device)
 381                                         continue;
 382                                 if (cx->dev->subsystem_vendor !=
 383                                     cx->card->pci_list[j].subsystem_vendor)
 384                                         continue;
 385                                 if (cx->dev->subsystem_device !=
 386                                     cx->card->pci_list[j].subsystem_device)
 387                                         continue;
 388                                 CX18_INFO("Autodetected %s card\n", cx->card->name);
 389                                 goto done;
 390                         }
 391                 }
 392         }
 393 done:
 394
 395         if (cx->card == NULL) {
 396                 cx->card = cx18_get_card(CX18_CARD_HVR_1600_ESMT);
 397                 CX18_ERR("Unknown card: vendor/device: %04x/%04x\n",
 398                      cx->dev->vendor, cx->dev->device);
 399                 CX18_ERR("              subsystem vendor/device: %04x/%04x\n",
 400                      cx->dev->subsystem_vendor, cx->dev->subsystem_device);
 401                 CX18_ERR("Defaulting to %s card\n", cx->card->name);
 402                 CX18_ERR("Please mail the vendor/device and subsystem vendor/device IDs and what kind of\n");
 403                 CX18_ERR("card you have to the ivtv-devel mailinglist (www.ivtvdriver.org)\n");
 404                 CX18_ERR("Prefix your subject line with [UNKNOWN CX18 CARD].\n");
 405         }
 406         cx->v4l2_cap = cx->card->v4l2_capabilities;
 407         cx->card_name = cx->card->name;
 408         cx->card_i2c = cx->card->i2c;
 409 }
 410
 411 /* Precondition: the cx18 structure has been memset to 0. Only
 412    the dev and num fields have been filled in.
 413    No assumptions on the card type may be made here (see cx18_init_struct2
 414    for that).
 415  */
 416 static int __devinit cx18_init_struct1(struct cx18 *cx)
 417 {
 418         cx->base_addr = pci_resource_start(cx->dev, 0);
 419
 420         mutex_init(&cx->serialize_lock);
 421         mutex_init(&cx->i2c_bus_lock[0]);
 422         mutex_init(&cx->i2c_bus_lock[1]);
 423
 424         spin_lock_init(&cx->lock);
 425         spin_lock_init(&cx->dma_reg_lock);
 426
 427         /* start counting open_id at 1 */
 428         cx->open_id = 1;
 429
 430         /* Initial settings */
 431         cx2341x_fill_defaults(&cx->params);
 432         cx->temporal_strength = cx->params.video_temporal_filter;
 433         cx->spatial_strength = cx->params.video_spatial_filter;
 434         cx->filter_mode = cx->params.video_spatial_filter_mode |
 435                 (cx->params.video_temporal_filter_mode << 1) |
 436                 (cx->params.video_median_filter_type << 2);
 437         cx->params.port = CX2341X_PORT_MEMORY;
 438         cx->params.capabilities = CX2341X_CAP_HAS_SLICED_VBI;
 439         init_waitqueue_head(&cx->cap_w);
 440         init_waitqueue_head(&cx->mb_apu_waitq);
 441         init_waitqueue_head(&cx->mb_cpu_waitq);
 442         init_waitqueue_head(&cx->mb_epu_waitq);
 443         init_waitqueue_head(&cx->mb_hpu_waitq);
 444         init_waitqueue_head(&cx->dma_waitq);
 445
 446         /* VBI */
 447         cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
 448         cx->vbi.sliced_in = &cx->vbi.in.fmt.sliced;
 449         cx->vbi.raw_size = 1456;
 450         cx->vbi.raw_decoder_line_size = 1456;
 451         cx->vbi.raw_decoder_sav_odd_field = 0x20;
 452         cx->vbi.raw_decoder_sav_even_field = 0x60;
 453         cx->vbi.sliced_decoder_line_size = 272;
 454         cx->vbi.sliced_decoder_sav_odd_field = 0xB0;
 455         cx->vbi.sliced_decoder_sav_even_field = 0xF0;
 456         return 0;
 457 }
 458
 459 /* Second initialization part. Here the card type has been
 460    autodetected. */
 461 static void __devinit cx18_init_struct2(struct cx18 *cx)
 462 {
 463         int i;
 464
 465         for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS; i++)
 466                 if (cx->card->video_inputs[i].video_type == 0)
 467                         break;
 468         cx->nof_inputs = i;
 469         for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS; i++)
 470                 if (cx->card->audio_inputs[i].audio_type == 0)
 471                         break;
 472         cx->nof_audio_inputs = i;
 473
 474         /* Find tuner input */
 475         for (i = 0; i < cx->nof_inputs; i++) {
 476                 if (cx->card->video_inputs[i].video_type ==
 477                                 CX18_CARD_INPUT_VID_TUNER)
 478                         break;
 479         }
 480         if (i == cx->nof_inputs)
 481                 i = 0;
 482         cx->active_input = i;
 483         cx->audio_input = cx->card->video_inputs[i].audio_index;
 484         cx->av_state.vid_input = CX18_AV_COMPOSITE7;
 485         cx->av_state.aud_input = CX18_AV_AUDIO8;
 486         cx->av_state.audclk_freq = 48000;
 487         cx->av_state.audmode = V4L2_TUNER_MODE_LANG1;
 488         cx->av_state.vbi_line_offset = 8;
 489 }
 490
 491 static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
 492                           const struct pci_device_id *pci_id)
 493 {
 494         u16 cmd;
 495         unsigned char pci_latency;
 496
 497         CX18_DEBUG_INFO("Enabling pci device\n");
 498
 499         if (pci_enable_device(dev)) {
 500                 CX18_ERR("Can't enable device %d!\n", cx->num);
 501                 return -EIO;
 502         }
 503         if (pci_set_dma_mask(dev, 0xffffffff)) {
 504                 CX18_ERR("No suitable DMA available on card %d.\n", cx->num);
 505                 return -EIO;
 506         }
 507         if (!request_mem_region(cx->base_addr, CX18_MEM_SIZE, "cx18 encoder")) {
 508                 CX18_ERR("Cannot request encoder memory region on card %d.\n", cx->num);
 509                 return -EIO;
 510         }
 511
 512         /* Check for bus mastering */
 513         pci_read_config_word(dev, PCI_COMMAND, &cmd);
 514         cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
 515         pci_write_config_word(dev, PCI_COMMAND, cmd);
 516
 517         pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev);
 518         pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 519
 520         if (pci_latency < 64 && cx18_pci_latency) {
 521                 CX18_INFO("Unreasonably low latency timer, "
 522                                "setting to 64 (was %d)\n", pci_latency);
 523                 pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
 524                 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
 525         }
 526         /* This config space value relates to DMA latencies. The
 527            default value 0x8080 is too low however and will lead
 528            to DMA errors. 0xffff is the max value which solves
 529            these problems. */
 530         pci_write_config_dword(dev, 0x40, 0xffff);
 531
 532         CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
 533                    "irq: %d, latency: %d, memory: 0x%lx\n",
 534                    cx->dev->device, cx->card_rev, dev->bus->number,
 535                    PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn),
 536                    cx->dev->irq, pci_latency, (unsigned long)cx->base_addr);
 537
 538         return 0;
 539 }
 540
 541 #ifdef MODULE
 542 static u32 cx18_request_module(struct cx18 *cx, u32 hw,
 543                 const char *name, u32 id)
 544 {
 545         if ((hw & id) == 0)
 546                 return hw;
 547         if (request_module(name) != 0) {
 548                 CX18_ERR("Failed to load module %s\n", name);
 549                 return hw & ~id;
 550         }
 551         CX18_DEBUG_INFO("Loaded module %s\n", name);
 552         return hw;
 553 }
 554 #endif
 555
 556 static void cx18_load_and_init_modules(struct cx18 *cx)
 557 {
 558         u32 hw = cx->card->hw_all;
 559         int i;
 560
 561 #ifdef MODULE
 562         /* load modules */
 563 #ifndef CONFIG_MEDIA_TUNER
 564         hw = cx18_request_module(cx, hw, "tuner", CX18_HW_TUNER);
 565 #endif
 566 #ifndef CONFIG_VIDEO_CS5345
 567         hw = cx18_request_module(cx, hw, "cs5345", CX18_HW_CS5345);
 568 #endif
 569 #endif
 570
 571         /* check which i2c devices are actually found */
 572         for (i = 0; i < 32; i++) {
 573                 u32 device = 1 << i;
 574
 575                 if (!(device & hw))
 576                         continue;
 577                 if (device == CX18_HW_GPIO || device == CX18_HW_TVEEPROM ||
 578                     device == CX18_HW_CX23418 || device == CX18_HW_DVB) {
 579                         /* These 'devices' do not use i2c probing */
 580                         cx->hw_flags |= device;
 581                         continue;
 582                 }
 583                 cx18_i2c_register(cx, i);
 584                 if (cx18_i2c_hw_addr(cx, device) > 0)
 585                         cx->hw_flags |= device;
 586         }
 587
 588         hw = cx->hw_flags;
 589 }
 590
 591 static int __devinit cx18_probe(struct pci_dev *dev,
 592                                 const struct pci_device_id *pci_id)
 593 {
 594         int retval = 0;
 595         int vbi_buf_size;
 596         u32 devtype;
 597         struct cx18 *cx;
 598
 599         spin_lock(&cx18_cards_lock);
 600
 601         /* Make sure we've got a place for this card */
 602         if (cx18_cards_active == CX18_MAX_CARDS) {
 603                 printk(KERN_ERR "cx18:  Maximum number of cards detected (%d).\n",
 604                               cx18_cards_active);
 605                 spin_unlock(&cx18_cards_lock);
 606                 return -ENOMEM;
 607         }
 608
 609         cx = kzalloc(sizeof(struct cx18), GFP_ATOMIC);
 610         if (!cx) {
 611                 spin_unlock(&cx18_cards_lock);
 612                 return -ENOMEM;
 613         }
 614         cx18_cards[cx18_cards_active] = cx;
 615         cx->dev = dev;
 616         cx->num = cx18_cards_active++;
 617         snprintf(cx->name, sizeof(cx->name) - 1, "cx18-%d", cx->num);
 618         CX18_INFO("Initializing card #%d\n", cx->num);
 619
 620         spin_unlock(&cx18_cards_lock);
 621
 622         cx18_process_options(cx);
 623         if (cx->options.cardtype == -1) {
 624                 retval = -ENODEV;
 625                 goto err;
 626         }
 627         if (cx18_init_struct1(cx)) {
 628                 retval = -ENOMEM;
 629                 goto err;
 630         }
 631
 632         CX18_DEBUG_INFO("base addr: 0x%08x\n", cx->base_addr);
 633
 634         /* PCI Device Setup */
 635         retval = cx18_setup_pci(cx, dev, pci_id);
 636         if (retval != 0) {
 637                 if (retval == -EIO)
 638                         goto free_workqueue;
 639                 else if (retval == -ENXIO)
 640                         goto free_mem;
 641         }
 642         /* save cx in the pci struct for later use */
 643         pci_set_drvdata(dev, cx);
 644
 645         /* map io memory */
 646         CX18_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n",
 647                    cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE);
 648         cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET,
 649                                        CX18_MEM_SIZE);
 650         if (!cx->enc_mem) {
 651                 CX18_ERR("ioremap failed, perhaps increasing __VMALLOC_RESERVE in page.h\n");
 652                 CX18_ERR("or disabling CONFIG_HIGHMEM4G into the kernel would help\n");
 653                 retval = -ENOMEM;
 654                 goto free_mem;
 655         }
 656         cx->reg_mem = cx->enc_mem + CX18_REG_OFFSET;
 657         devtype = read_reg(0xC72028);
 658         switch (devtype & 0xff000000) {
 659         case 0xff000000:
 660                 CX18_INFO("cx23418 revision %08x (A)\n", devtype);
 661                 break;
 662         case 0x01000000:
 663                 CX18_INFO("cx23418 revision %08x (B)\n", devtype);
 664                 break;
 665         default:
 666                 CX18_INFO("cx23418 revision %08x (Unknown)\n", devtype);
 667                 break;
 668         }
 669
 670         cx18_init_power(cx, 1);
 671         cx18_init_memory(cx);
 672
 673         cx->scb = (struct cx18_scb *)(cx->enc_mem + SCB_OFFSET);
 674         cx18_init_scb(cx);
 675
 676         cx18_gpio_init(cx);
 677
 678         /* active i2c  */
 679         CX18_DEBUG_INFO("activating i2c...\n");
 680         if (init_cx18_i2c(cx)) {
 681                 CX18_ERR("Could not initialize i2c\n");
 682                 goto free_map;
 683         }
 684
 685         CX18_DEBUG_INFO("Active card count: %d.\n", cx18_cards_active);
 686
 687         if (cx->card->hw_all & CX18_HW_TVEEPROM) {
 688                 /* Based on the model number the cardtype may be changed.
 689                    The PCI IDs are not always reliable. */
 690                 cx18_process_eeprom(cx);
 691         }
 692         if (cx->card->comment)
 693                 CX18_INFO("%s", cx->card->comment);
 694         if (cx->card->v4l2_capabilities == 0) {
 695                 retval = -ENODEV;
 696                 goto free_i2c;
 697         }
 698         cx18_init_memory(cx);
 699
 700         /* Register IRQ */
 701         retval = request_irq(cx->dev->irq, cx18_irq_handler,
 702                              IRQF_SHARED | IRQF_DISABLED, cx->name, (void *)cx);
 703         if (retval) {
 704                 CX18_ERR("Failed to register irq %d\n", retval);
 705                 goto free_i2c;
 706         }
 707
 708         if (cx->std == 0)
 709                 cx->std = V4L2_STD_NTSC_M;
 710
 711         if (cx->options.tuner == -1) {
 712                 int i;
 713
 714                 for (i = 0; i < CX18_CARD_MAX_TUNERS; i++) {
 715                         if ((cx->std & cx->card->tuners[i].std) == 0)
 716                                 continue;
 717                         cx->options.tuner = cx->card->tuners[i].tuner;
 718                         break;
 719                 }
 720         }
 721         /* if no tuner was found, then pick the first tuner in the card list */
 722         if (cx->options.tuner == -1 && cx->card->tuners[0].std) {
 723                 cx->std = cx->card->tuners[0].std;
 724                 cx->options.tuner = cx->card->tuners[0].tuner;
 725         }
 726         if (cx->options.radio == -1)
 727                 cx->options.radio = (cx->card->radio_input.audio_type != 0);
 728
 729         /* The card is now fully identified, continue with card-specific
 730            initialization. */
 731         cx18_init_struct2(cx);
 732
 733         cx18_load_and_init_modules(cx);
 734
 735         if (cx->std & V4L2_STD_525_60) {
 736                 cx->is_60hz = 1;
 737                 cx->is_out_60hz = 1;
 738         } else {
 739                 cx->is_50hz = 1;
 740                 cx->is_out_50hz = 1;
 741         }
 742         cx->params.video_gop_size = cx->is_60hz ? 15 : 12;
 743
 744         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_MPG] = 0x08000;
 745         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_TS] = 0x08000;
 746         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_PCM] = 0x01200;
 747         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_YUV] = 0x20000;
 748         vbi_buf_size = cx->vbi.raw_size * (cx->is_60hz ? 24 : 36) / 2;
 749         cx->stream_buf_size[CX18_ENC_STREAM_TYPE_VBI] = vbi_buf_size;
 750
 751         if (cx->options.radio > 0)
 752                 cx->v4l2_cap |= V4L2_CAP_RADIO;
 753
 754         retval = cx18_streams_setup(cx);
 755         if (retval) {
 756                 CX18_ERR("Error %d setting up streams\n", retval);
 757                 goto free_irq;
 758         }
 759         retval = cx18_streams_register(cx);
 760         if (retval) {
 761                 CX18_ERR("Error %d registering devices\n", retval);
 762                 goto free_streams;
 763         }
 764
 765         if (cx->options.tuner > -1) {
 766                 struct tuner_setup setup;
 767
 768                 setup.addr = ADDR_UNSET;
 769                 setup.type = cx->options.tuner;
 770                 setup.mode_mask = T_ANALOG_TV;  /* matches TV tuners */
 771                 setup.tuner_callback = (setup.type == TUNER_XC2028) ?
 772                         cx18_reset_tuner_gpio : NULL;
 773                 cx18_call_i2c_clients(cx, TUNER_SET_TYPE_ADDR, &setup);
 774                 if (setup.type == TUNER_XC2028) {
 775                         static struct xc2028_ctrl ctrl = {
 776                                 .fname = XC2028_DEFAULT_FIRMWARE,
 777                                 .max_len = 64,
 778                         };
 779                         struct v4l2_priv_tun_config cfg = {
 780                                 .tuner = cx->options.tuner,
 781                                 .priv = &ctrl,
 782                         };
 783                         cx18_call_i2c_clients(cx, TUNER_SET_CONFIG, &cfg);
 784                 }
 785         }
 786
 787         /* The tuner is fixed to the standard. The other inputs (e.g. S-Video)
 788            are not. */
 789         cx->tuner_std = cx->std;
 790
 791         cx18_init_on_first_open(cx);
 792
 793         CX18_INFO("Initialized card #%d: %s\n", cx->num, cx->card_name);
 794
 795         return 0;
 796
 797 free_streams:
 798         cx18_streams_cleanup(cx, 1);
 799 free_irq:
 800         free_irq(cx->dev->irq, (void *)cx);
 801 free_i2c:
 802         exit_cx18_i2c(cx);
 803 free_map:
 804         cx18_iounmap(cx);
 805 free_mem:
 806         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
 807 free_workqueue:
 808 err:
 809         if (retval == 0)
 810                 retval = -ENODEV;
 811         CX18_ERR("Error %d on initialization\n", retval);
 812
 813         kfree(cx18_cards[cx18_cards_active]);
 814         cx18_cards[cx18_cards_active] = NULL;
 815         return retval;
 816 }
 817
 818 int cx18_init_on_first_open(struct cx18 *cx)
 819 {
 820         int video_input;
 821         int fw_retry_count = 3;
 822         struct v4l2_frequency vf;
 823
 824         if (test_bit(CX18_F_I_FAILED, &cx->i_flags))
 825                 return -ENXIO;
 826
 827         if (test_and_set_bit(CX18_F_I_INITED, &cx->i_flags))
 828                 return 0;
 829
 830         while (--fw_retry_count > 0) {
 831                 /* load firmware */
 832                 if (cx18_firmware_init(cx) == 0)
 833                         break;
 834                 if (fw_retry_count > 1)
 835                         CX18_WARN("Retry loading firmware\n");
 836         }
 837
 838         if (fw_retry_count == 0) {
 839                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
 840                 return -ENXIO;
 841         }
 842         set_bit(CX18_F_I_LOADED_FW, &cx->i_flags);
 843
 844         /* Init the firmware twice to work around a silicon bug
 845          * transport related. */
 846
 847         fw_retry_count = 3;
 848         while (--fw_retry_count > 0) {
 849                 /* load firmware */
 850                 if (cx18_firmware_init(cx) == 0)
 851                         break;
 852                 if (fw_retry_count > 1)
 853                         CX18_WARN("Retry loading firmware\n");
 854         }
 855
 856         if (fw_retry_count == 0) {
 857                 set_bit(CX18_F_I_FAILED, &cx->i_flags);
 858                 return -ENXIO;
 859         }
 860
 861         vf.tuner = 0;
 862         vf.type = V4L2_TUNER_ANALOG_TV;
 863         vf.frequency = 6400; /* the tuner 'baseline' frequency */
 864
 865         /* Set initial frequency. For PAL/SECAM broadcasts no
 866            'default' channel exists AFAIK. */
 867         if (cx->std == V4L2_STD_NTSC_M_JP)
 868                 vf.frequency = 1460;    /* ch. 1 91250*16/1000 */
 869         else if (cx->std & V4L2_STD_NTSC_M)
 870                 vf.frequency = 1076;    /* ch. 4 67250*16/1000 */
 871
 872         video_input = cx->active_input;
 873         cx->active_input++;     /* Force update of input */
 874         cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_INPUT, &video_input);
 875
 876         /* Let the VIDIOC_S_STD ioctl do all the work, keeps the code
 877            in one place. */
 878         cx->std++;              /* Force full standard initialization */
 879         cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_STD, &cx->tuner_std);
 880         cx18_v4l2_ioctls(cx, NULL, VIDIOC_S_FREQUENCY, &vf);
 881         return 0;
 882 }
 883
 884 static void cx18_remove(struct pci_dev *pci_dev)
 885 {
 886         struct cx18 *cx = pci_get_drvdata(pci_dev);
 887
 888         CX18_DEBUG_INFO("Removing Card #%d\n", cx->num);
 889
 890         /* Stop all captures */
 891         CX18_DEBUG_INFO("Stopping all streams\n");
 892         if (atomic_read(&cx->capturing) > 0)
 893                 cx18_stop_all_captures(cx);
 894
 895         /* Interrupts */
 896         sw1_irq_disable(IRQ_CPU_TO_EPU | IRQ_APU_TO_EPU);
 897         sw2_irq_disable(IRQ_CPU_TO_EPU_ACK | IRQ_APU_TO_EPU_ACK);
 898
 899         cx18_halt_firmware(cx);
 900
 901         cx18_streams_cleanup(cx, 1);
 902
 903         exit_cx18_i2c(cx);
 904
 905         free_irq(cx->dev->irq, (void *)cx);
 906
 907         if (cx->dev)
 908                 cx18_iounmap(cx);
 909
 910         release_mem_region(cx->base_addr, CX18_MEM_SIZE);
 911
 912         pci_disable_device(cx->dev);
 913
 914         CX18_INFO("Removed %s, card #%d\n", cx->card_name, cx->num);
 915 }
 916
 917 /* define a pci_driver for card detection */
 918 static struct pci_driver cx18_pci_driver = {
 919       .name =     "cx18",
 920       .id_table = cx18_pci_tbl,
 921       .probe =    cx18_probe,
 922       .remove =   cx18_remove,
 923 };
 924
 925 static int module_start(void)
 926 {
 927         printk(KERN_INFO "cx18:  Start initialization, version %s\n", CX18_VERSION);
 928
 929         memset(cx18_cards, 0, sizeof(cx18_cards));
 930
 931         /* Validate parameters */
 932         if (cx18_first_minor < 0 || cx18_first_minor >= CX18_MAX_CARDS) {
 933                 printk(KERN_ERR "cx18:  Exiting, ivtv_first_minor must be between 0 and %d\n",
 934                      CX18_MAX_CARDS - 1);
 935                 return -1;
 936         }
 937
 938         if (cx18_debug < 0 || cx18_debug > 511) {
 939                 cx18_debug = 0;
 940                 printk(KERN_INFO "cx18:   Debug value must be >= 0 and <= 511!\n");
 941         }
 942
 943         if (pci_register_driver(&cx18_pci_driver)) {
 944                 printk(KERN_ERR "cx18:   Error detecting PCI card\n");
 945                 return -ENODEV;
 946         }
 947         printk(KERN_INFO "cx18:  End initialization\n");
 948         return 0;
 949 }
 950
 951 static void module_cleanup(void)
 952 {
 953         int i;
 954
 955         pci_unregister_driver(&cx18_pci_driver);
 956
 957         for (i = 0; i < cx18_cards_active; i++) {
 958                 if (cx18_cards[i] == NULL)
 959                         continue;
 960                 kfree(cx18_cards[i]);
 961         }
 962 }
 963
 964 module_init(module_start);
 965 module_exit(module_cleanup);