SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/cx23885/cx23885-video.c

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/kmod.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/smp_lock.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/delay.h>
  32 #include <linux/kthread.h>
  33 #include <asm/div64.h>
  34
  35 #include "cx23885.h"
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38 #include "cx23885-ioctl.h"
  39
  40 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  41 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  42 MODULE_LICENSE("GPL");
  43
  44 /* ------------------------------------------------------------------ */
  45
  46 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  47 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  48 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  49
  50 module_param_array(video_nr, int, NULL, 0444);
  51 module_param_array(vbi_nr,   int, NULL, 0444);
  52 module_param_array(radio_nr, int, NULL, 0444);
  53
  54 MODULE_PARM_DESC(video_nr, "video device numbers");
  55 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  56 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  57
  58 static unsigned int video_debug;
  59 module_param(video_debug, int, 0644);
  60 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  61
  62 static unsigned int irq_debug;
  63 module_param(irq_debug, int, 0644);
  64 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  65
  66 static unsigned int vid_limit = 16;
  67 module_param(vid_limit, int, 0644);
  68 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  69
  70 #define dprintk(level, fmt, arg...)\
  71         do { if (video_debug >= level)\
  72                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  73         } while (0)
  74
  75 /* ------------------------------------------------------------------- */
  76 /* static data                                                         */
  77
  78 #define FORMAT_FLAGS_PACKED       0x01
  79
  80 static struct cx23885_fmt formats[] = {
  81         {
  82                 .name     = "8 bpp, gray",
  83                 .fourcc   = V4L2_PIX_FMT_GREY,
  84                 .depth    = 8,
  85                 .flags    = FORMAT_FLAGS_PACKED,
  86         }, {
  87                 .name     = "15 bpp RGB, le",
  88                 .fourcc   = V4L2_PIX_FMT_RGB555,
  89                 .depth    = 16,
  90                 .flags    = FORMAT_FLAGS_PACKED,
  91         }, {
  92                 .name     = "15 bpp RGB, be",
  93                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  94                 .depth    = 16,
  95                 .flags    = FORMAT_FLAGS_PACKED,
  96         }, {
  97                 .name     = "16 bpp RGB, le",
  98                 .fourcc   = V4L2_PIX_FMT_RGB565,
  99                 .depth    = 16,
 100                 .flags    = FORMAT_FLAGS_PACKED,
 101         }, {
 102                 .name     = "16 bpp RGB, be",
 103                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 104                 .depth    = 16,
 105                 .flags    = FORMAT_FLAGS_PACKED,
 106         }, {
 107                 .name     = "24 bpp RGB, le",
 108                 .fourcc   = V4L2_PIX_FMT_BGR24,
 109                 .depth    = 24,
 110                 .flags    = FORMAT_FLAGS_PACKED,
 111         }, {
 112                 .name     = "32 bpp RGB, le",
 113                 .fourcc   = V4L2_PIX_FMT_BGR32,
 114                 .depth    = 32,
 115                 .flags    = FORMAT_FLAGS_PACKED,
 116         }, {
 117                 .name     = "32 bpp RGB, be",
 118                 .fourcc   = V4L2_PIX_FMT_RGB32,
 119                 .depth    = 32,
 120                 .flags    = FORMAT_FLAGS_PACKED,
 121         }, {
 122                 .name     = "4:2:2, packed, YUYV",
 123                 .fourcc   = V4L2_PIX_FMT_YUYV,
 124                 .depth    = 16,
 125                 .flags    = FORMAT_FLAGS_PACKED,
 126         }, {
 127                 .name     = "4:2:2, packed, UYVY",
 128                 .fourcc   = V4L2_PIX_FMT_UYVY,
 129                 .depth    = 16,
 130                 .flags    = FORMAT_FLAGS_PACKED,
 131         },
 132 };
 133
 134 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 135 {
 136         unsigned int i;
 137
 138         for (i = 0; i < ARRAY_SIZE(formats); i++)
 139                 if (formats[i].fourcc == fourcc)
 140                         return formats+i;
 141
 142         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 143         return NULL;
 144 }
 145
 146 /* ------------------------------------------------------------------- */
 147
 148 static const struct v4l2_queryctrl no_ctl = {
 149         .name  = "42",
 150         .flags = V4L2_CTRL_FLAG_DISABLED,
 151 };
 152
 153 static struct cx23885_ctrl cx23885_ctls[] = {
 154         /* --- video --- */
 155         {
 156                 .v = {
 157                         .id            = V4L2_CID_BRIGHTNESS,
 158                         .name          = "Brightness",
 159                         .minimum       = 0x00,
 160                         .maximum       = 0xff,
 161                         .step          = 1,
 162                         .default_value = 0x7f,
 163                         .type          = V4L2_CTRL_TYPE_INTEGER,
 164                 },
 165                 .off                   = 128,
 166                 .reg                   = LUMA_CTRL,
 167                 .mask                  = 0x00ff,
 168                 .shift                 = 0,
 169         }, {
 170                 .v = {
 171                         .id            = V4L2_CID_CONTRAST,
 172                         .name          = "Contrast",
 173                         .minimum       = 0,
 174                         .maximum       = 0xff,
 175                         .step          = 1,
 176                         .default_value = 0x3f,
 177                         .type          = V4L2_CTRL_TYPE_INTEGER,
 178                 },
 179                 .off                   = 0,
 180                 .reg                   = LUMA_CTRL,
 181                 .mask                  = 0xff00,
 182                 .shift                 = 8,
 183         }, {
 184                 .v = {
 185                         .id            = V4L2_CID_HUE,
 186                         .name          = "Hue",
 187                         .minimum       = 0,
 188                         .maximum       = 0xff,
 189                         .step          = 1,
 190                         .default_value = 0x7f,
 191                         .type          = V4L2_CTRL_TYPE_INTEGER,
 192                 },
 193                 .off                   = 128,
 194                 .reg                   = CHROMA_CTRL,
 195                 .mask                  = 0xff0000,
 196                 .shift                 = 16,
 197         }, {
 198                 /* strictly, this only describes only U saturation.
 199                  * V saturation is handled specially through code.
 200                  */
 201                 .v = {
 202                         .id            = V4L2_CID_SATURATION,
 203                         .name          = "Saturation",
 204                         .minimum       = 0,
 205                         .maximum       = 0xff,
 206                         .step          = 1,
 207                         .default_value = 0x7f,
 208                         .type          = V4L2_CTRL_TYPE_INTEGER,
 209                 },
 210                 .off                   = 0,
 211                 .reg                   = CHROMA_CTRL,
 212                 .mask                  = 0x00ff,
 213                 .shift                 = 0,
 214         }, {
 215         /* --- audio --- */
 216                 .v = {
 217                         .id            = V4L2_CID_AUDIO_MUTE,
 218                         .name          = "Mute",
 219                         .minimum       = 0,
 220                         .maximum       = 1,
 221                         .default_value = 1,
 222                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 223                 },
 224                 .reg                   = PATH1_CTL1,
 225                 .mask                  = (0x1f << 24),
 226                 .shift                 = 24,
 227         }, {
 228                 .v = {
 229                         .id            = V4L2_CID_AUDIO_VOLUME,
 230                         .name          = "Volume",
 231                         .minimum       = 0,
 232                         .maximum       = 0x3f,
 233                         .step          = 1,
 234                         .default_value = 0x3f,
 235                         .type          = V4L2_CTRL_TYPE_INTEGER,
 236                 },
 237                 .reg                   = PATH1_VOL_CTL,
 238                 .mask                  = 0xff,
 239                 .shift                 = 0,
 240         }
 241 };
 242 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 243
 244 /* Must be sorted from low to high control ID! */
 245 static const u32 cx23885_user_ctrls[] = {
 246         V4L2_CID_USER_CLASS,
 247         V4L2_CID_BRIGHTNESS,
 248         V4L2_CID_CONTRAST,
 249         V4L2_CID_SATURATION,
 250         V4L2_CID_HUE,
 251         V4L2_CID_AUDIO_VOLUME,
 252         V4L2_CID_AUDIO_MUTE,
 253         0
 254 };
 255
 256 static const u32 *ctrl_classes[] = {
 257         cx23885_user_ctrls,
 258         NULL
 259 };
 260
 261 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 262                  struct cx23885_dmaqueue *q, u32 count)
 263 {
 264         struct cx23885_buffer *buf;
 265         int bc;
 266
 267         for (bc = 0;; bc++) {
 268                 if (list_empty(&q->active))
 269                         break;
 270                 buf = list_entry(q->active.next,
 271                                  struct cx23885_buffer, vb.queue);
 272
 273                 /* count comes from the hw and is is 16bit wide --
 274                  * this trick handles wrap-arounds correctly for
 275                  * up to 32767 buffers in flight... */
 276                 if ((s16) (count - buf->count) < 0)
 277                         break;
 278
 279                 do_gettimeofday(&buf->vb.ts);
 280                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 281                         count, buf->count);
 282                 buf->vb.state = VIDEOBUF_DONE;
 283                 list_del(&buf->vb.queue);
 284                 wake_up(&buf->vb.done);
 285         }
 286         if (list_empty(&q->active))
 287                 del_timer(&q->timeout);
 288         else
 289                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 290         if (bc != 1)
 291                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 292                         __func__, bc);
 293 }
 294
 295 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 296 {
 297         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 298                 __func__,
 299                 (unsigned int)norm,
 300                 v4l2_norm_to_name(norm));
 301
 302         dev->tvnorm = norm;
 303
 304         call_all(dev, core, s_std, norm);
 305
 306         return 0;
 307 }
 308
 309 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 310                                     struct pci_dev *pci,
 311                                     struct video_device *template,
 312                                     char *type)
 313 {
 314         struct video_device *vfd;
 315         dprintk(1, "%s()\n", __func__);
 316
 317         vfd = video_device_alloc();
 318         if (NULL == vfd)
 319                 return NULL;
 320         *vfd = *template;
 321         vfd->minor = -1;
 322         vfd->v4l2_dev = &dev->v4l2_dev;
 323         vfd->release = video_device_release;
 324         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 325                  dev->name, type, cx23885_boards[dev->board].name);
 326         video_set_drvdata(vfd, dev);
 327         return vfd;
 328 }
 329
 330 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 331 {
 332         int i;
 333
 334         if (qctrl->id < V4L2_CID_BASE ||
 335             qctrl->id >= V4L2_CID_LASTP1)
 336                 return -EINVAL;
 337         for (i = 0; i < CX23885_CTLS; i++)
 338                 if (cx23885_ctls[i].v.id == qctrl->id)
 339                         break;
 340         if (i == CX23885_CTLS) {
 341                 *qctrl = no_ctl;
 342                 return 0;
 343         }
 344         *qctrl = cx23885_ctls[i].v;
 345         return 0;
 346 }
 347
 348 /* ------------------------------------------------------------------- */
 349 /* resource management                                                 */
 350
 351 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 352         unsigned int bit)
 353 {
 354         dprintk(1, "%s()\n", __func__);
 355         if (fh->resources & bit)
 356                 /* have it already allocated */
 357                 return 1;
 358
 359         /* is it free? */
 360         mutex_lock(&dev->lock);
 361         if (dev->resources & bit) {
 362                 /* no, someone else uses it */
 363                 mutex_unlock(&dev->lock);
 364                 return 0;
 365         }
 366         /* it's free, grab it */
 367         fh->resources  |= bit;
 368         dev->resources |= bit;
 369         dprintk(1, "res: get %d\n", bit);
 370         mutex_unlock(&dev->lock);
 371         return 1;
 372 }
 373
 374 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 375 {
 376         return fh->resources & bit;
 377 }
 378
 379 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 380 {
 381         return dev->resources & bit;
 382 }
 383
 384 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 385         unsigned int bits)
 386 {
 387         BUG_ON((fh->resources & bits) != bits);
 388         dprintk(1, "%s()\n", __func__);
 389
 390         mutex_lock(&dev->lock);
 391         fh->resources  &= ~bits;
 392         dev->resources &= ~bits;
 393         dprintk(1, "res: put %d\n", bits);
 394         mutex_unlock(&dev->lock);
 395 }
 396
 397 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 398 {
 399         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 400                 __func__,
 401                 input, INPUT(input)->vmux,
 402                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 403                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 404         dev->input = input;
 405
 406         if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
 407                 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2) {
 408                 /* Select Analog TV */
 409                 if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
 410                         cx23885_gpio_clear(dev, GPIO_0);
 411         }
 412
 413         /* Tell the internal A/V decoder */
 414         v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
 415                         INPUT(input)->vmux, 0, 0);
 416
 417         return 0;
 418 }
 419
 420 /* ------------------------------------------------------------------ */
 421 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 422         unsigned int height, enum v4l2_field field)
 423 {
 424         dprintk(1, "%s()\n", __func__);
 425         return 0;
 426 }
 427
 428 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 429                            struct cx23885_dmaqueue *q,
 430                            struct cx23885_buffer *buf)
 431 {
 432         dprintk(1, "%s()\n", __func__);
 433
 434         /* setup fifo + format */
 435         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 436                                 buf->bpl, buf->risc.dma);
 437         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 438
 439         /* reset counter */
 440         cx_write(VID_A_GPCNT_CTL, 3);
 441         q->count = 1;
 442
 443         /* enable irq */
 444         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 445         cx_set(VID_A_INT_MSK, 0x000011);
 446
 447         /* start dma */
 448         cx_set(DEV_CNTRL2, (1<<5));
 449         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 450
 451         return 0;
 452 }
 453
 454
 455 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 456                                struct cx23885_dmaqueue *q)
 457 {
 458         struct cx23885_buffer *buf, *prev;
 459         struct list_head *item;
 460         dprintk(1, "%s()\n", __func__);
 461
 462         if (!list_empty(&q->active)) {
 463                 buf = list_entry(q->active.next, struct cx23885_buffer,
 464                         vb.queue);
 465                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 466                         buf, buf->vb.i);
 467                 cx23885_start_video_dma(dev, q, buf);
 468                 list_for_each(item, &q->active) {
 469                         buf = list_entry(item, struct cx23885_buffer,
 470                                 vb.queue);
 471                         buf->count    = q->count++;
 472                 }
 473                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 474                 return 0;
 475         }
 476
 477         prev = NULL;
 478         for (;;) {
 479                 if (list_empty(&q->queued))
 480                         return 0;
 481                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 482                         vb.queue);
 483                 if (NULL == prev) {
 484                         list_move_tail(&buf->vb.queue, &q->active);
 485                         cx23885_start_video_dma(dev, q, buf);
 486                         buf->vb.state = VIDEOBUF_ACTIVE;
 487                         buf->count    = q->count++;
 488                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 489                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 490                                 buf, buf->vb.i);
 491
 492                 } else if (prev->vb.width  == buf->vb.width  &&
 493                            prev->vb.height == buf->vb.height &&
 494                            prev->fmt       == buf->fmt) {
 495                         list_move_tail(&buf->vb.queue, &q->active);
 496                         buf->vb.state = VIDEOBUF_ACTIVE;
 497                         buf->count    = q->count++;
 498                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 499                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 500                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 501                                 buf, buf->vb.i);
 502                 } else {
 503                         return 0;
 504                 }
 505                 prev = buf;
 506         }
 507 }
 508
 509 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 510         unsigned int *size)
 511 {
 512         struct cx23885_fh *fh = q->priv_data;
 513
 514         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 515         if (0 == *count)
 516                 *count = 32;
 517         while (*size * *count > vid_limit * 1024 * 1024)
 518                 (*count)--;
 519         return 0;
 520 }
 521
 522 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 523                enum v4l2_field field)
 524 {
 525         struct cx23885_fh *fh  = q->priv_data;
 526         struct cx23885_dev *dev = fh->dev;
 527         struct cx23885_buffer *buf =
 528                 container_of(vb, struct cx23885_buffer, vb);
 529         int rc, init_buffer = 0;
 530         u32 line0_offset, line1_offset;
 531         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 532
 533         BUG_ON(NULL == fh->fmt);
 534         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 535             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 536                 return -EINVAL;
 537         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 538         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 539                 return -EINVAL;
 540
 541         if (buf->fmt       != fh->fmt    ||
 542             buf->vb.width  != fh->width  ||
 543             buf->vb.height != fh->height ||
 544             buf->vb.field  != field) {
 545                 buf->fmt       = fh->fmt;
 546                 buf->vb.width  = fh->width;
 547                 buf->vb.height = fh->height;
 548                 buf->vb.field  = field;
 549                 init_buffer = 1;
 550         }
 551
 552         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 553                 init_buffer = 1;
 554                 rc = videobuf_iolock(q, &buf->vb, NULL);
 555                 if (0 != rc)
 556                         goto fail;
 557         }
 558
 559         if (init_buffer) {
 560                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 561                 switch (buf->vb.field) {
 562                 case V4L2_FIELD_TOP:
 563                         cx23885_risc_buffer(dev->pci, &buf->risc,
 564                                          dma->sglist, 0, UNSET,
 565                                          buf->bpl, 0, buf->vb.height);
 566                         break;
 567                 case V4L2_FIELD_BOTTOM:
 568                         cx23885_risc_buffer(dev->pci, &buf->risc,
 569                                          dma->sglist, UNSET, 0,
 570                                          buf->bpl, 0, buf->vb.height);
 571                         break;
 572                 case V4L2_FIELD_INTERLACED:
 573                         if (dev->tvnorm & V4L2_STD_NTSC) {
 574                                 /* cx25840 transmits NTSC bottom field first */
 575                                 dprintk(1, "%s() Creating NTSC risc\n",
 576                                         __func__);
 577                                 line0_offset = buf->bpl;
 578                                 line1_offset = 0;
 579                         } else {
 580                                 /* All other formats are top field first */
 581                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 582                                         __func__);
 583                                 line0_offset = 0;
 584                                 line1_offset = buf->bpl;
 585                         }
 586                         cx23885_risc_buffer(dev->pci, &buf->risc,
 587                                         dma->sglist, line0_offset,
 588                                         line1_offset,
 589                                         buf->bpl, buf->bpl,
 590                                         buf->vb.height >> 1);
 591                         break;
 592                 case V4L2_FIELD_SEQ_TB:
 593                         cx23885_risc_buffer(dev->pci, &buf->risc,
 594                                          dma->sglist,
 595                                          0, buf->bpl * (buf->vb.height >> 1),
 596                                          buf->bpl, 0,
 597                                          buf->vb.height >> 1);
 598                         break;
 599                 case V4L2_FIELD_SEQ_BT:
 600                         cx23885_risc_buffer(dev->pci, &buf->risc,
 601                                          dma->sglist,
 602                                          buf->bpl * (buf->vb.height >> 1), 0,
 603                                          buf->bpl, 0,
 604                                          buf->vb.height >> 1);
 605                         break;
 606                 default:
 607                         BUG();
 608                 }
 609         }
 610         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 611                 buf, buf->vb.i,
 612                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 613                 (unsigned long)buf->risc.dma);
 614
 615         buf->vb.state = VIDEOBUF_PREPARED;
 616         return 0;
 617
 618  fail:
 619         cx23885_free_buffer(q, buf);
 620         return rc;
 621 }
 622
 623 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 624 {
 625         struct cx23885_buffer   *buf = container_of(vb,
 626                 struct cx23885_buffer, vb);
 627         struct cx23885_buffer   *prev;
 628         struct cx23885_fh       *fh   = vq->priv_data;
 629         struct cx23885_dev      *dev  = fh->dev;
 630         struct cx23885_dmaqueue *q    = &dev->vidq;
 631
 632         /* add jump to stopper */
 633         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 634         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 635         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 636
 637         if (!list_empty(&q->queued)) {
 638                 list_add_tail(&buf->vb.queue, &q->queued);
 639                 buf->vb.state = VIDEOBUF_QUEUED;
 640                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 641                         buf, buf->vb.i);
 642
 643         } else if (list_empty(&q->active)) {
 644                 list_add_tail(&buf->vb.queue, &q->active);
 645                 cx23885_start_video_dma(dev, q, buf);
 646                 buf->vb.state = VIDEOBUF_ACTIVE;
 647                 buf->count    = q->count++;
 648                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 649                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 650                         buf, buf->vb.i);
 651
 652         } else {
 653                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 654                         vb.queue);
 655                 if (prev->vb.width  == buf->vb.width  &&
 656                     prev->vb.height == buf->vb.height &&
 657                     prev->fmt       == buf->fmt) {
 658                         list_add_tail(&buf->vb.queue, &q->active);
 659                         buf->vb.state = VIDEOBUF_ACTIVE;
 660                         buf->count    = q->count++;
 661                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 662                         /* 64 bit bits 63-32 */
 663                         prev->risc.jmp[2] = cpu_to_le32(0);
 664                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 665                                 buf, buf->vb.i);
 666
 667                 } else {
 668                         list_add_tail(&buf->vb.queue, &q->queued);
 669                         buf->vb.state = VIDEOBUF_QUEUED;
 670                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 671                                 buf, buf->vb.i);
 672                 }
 673         }
 674 }
 675
 676 static void buffer_release(struct videobuf_queue *q,
 677         struct videobuf_buffer *vb)
 678 {
 679         struct cx23885_buffer *buf = container_of(vb,
 680                 struct cx23885_buffer, vb);
 681
 682         cx23885_free_buffer(q, buf);
 683 }
 684
 685 static struct videobuf_queue_ops cx23885_video_qops = {
 686         .buf_setup    = buffer_setup,
 687         .buf_prepare  = buffer_prepare,
 688         .buf_queue    = buffer_queue,
 689         .buf_release  = buffer_release,
 690 };
 691
 692 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 693 {
 694         switch (fh->type) {
 695         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 696                 return &fh->vidq;
 697         case V4L2_BUF_TYPE_VBI_CAPTURE:
 698                 return &fh->vbiq;
 699         default:
 700                 BUG();
 701                 return NULL;
 702         }
 703 }
 704
 705 static int get_resource(struct cx23885_fh *fh)
 706 {
 707         switch (fh->type) {
 708         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 709                 return RESOURCE_VIDEO;
 710         case V4L2_BUF_TYPE_VBI_CAPTURE:
 711                 return RESOURCE_VBI;
 712         default:
 713                 BUG();
 714                 return 0;
 715         }
 716 }
 717
 718 static int video_open(struct file *file)
 719 {
 720         int minor = video_devdata(file)->minor;
 721         struct video_device *vdev = video_devdata(file);
 722         struct cx23885_dev *dev = video_drvdata(file);
 723         struct cx23885_fh *fh;
 724         enum v4l2_buf_type type = 0;
 725         int radio = 0;
 726
 727         switch (vdev->vfl_type) {
 728         case VFL_TYPE_GRABBER:
 729                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 730                 break;
 731         case VFL_TYPE_VBI:
 732                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
 733                 break;
 734         case VFL_TYPE_RADIO:
 735                 radio = 1;
 736                 break;
 737         }
 738
 739         dprintk(1, "open minor=%d radio=%d type=%s\n",
 740                 minor, radio, v4l2_type_names[type]);
 741
 742         /* allocate + initialize per filehandle data */
 743         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 744         if (NULL == fh)
 745                 return -ENOMEM;
 746
 747         lock_kernel();
 748
 749         file->private_data = fh;
 750         fh->dev      = dev;
 751         fh->radio    = radio;
 752         fh->type     = type;
 753         fh->width    = 320;
 754         fh->height   = 240;
 755         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 756
 757         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 758                             &dev->pci->dev, &dev->slock,
 759                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 760                             V4L2_FIELD_INTERLACED,
 761                             sizeof(struct cx23885_buffer),
 762                             fh);
 763
 764         dprintk(1, "post videobuf_queue_init()\n");
 765
 766         unlock_kernel();
 767
 768         return 0;
 769 }
 770
 771 static ssize_t video_read(struct file *file, char __user *data,
 772         size_t count, loff_t *ppos)
 773 {
 774         struct cx23885_fh *fh = file->private_data;
 775
 776         switch (fh->type) {
 777         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 778                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 779                         return -EBUSY;
 780                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 781                                          file->f_flags & O_NONBLOCK);
 782         case V4L2_BUF_TYPE_VBI_CAPTURE:
 783                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 784                         return -EBUSY;
 785                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 786                                             file->f_flags & O_NONBLOCK);
 787         default:
 788                 BUG();
 789                 return 0;
 790         }
 791 }
 792
 793 static unsigned int video_poll(struct file *file,
 794         struct poll_table_struct *wait)
 795 {
 796         struct cx23885_fh *fh = file->private_data;
 797         struct cx23885_buffer *buf;
 798         unsigned int rc = POLLERR;
 799
 800         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 801                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 802                         return POLLERR;
 803                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 804         }
 805
 806         mutex_lock(&fh->vidq.vb_lock);
 807         if (res_check(fh, RESOURCE_VIDEO)) {
 808                 /* streaming capture */
 809                 if (list_empty(&fh->vidq.stream))
 810                         goto done;
 811                 buf = list_entry(fh->vidq.stream.next,
 812                         struct cx23885_buffer, vb.stream);
 813         } else {
 814                 /* read() capture */
 815                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 816                 if (NULL == buf)
 817                         goto done;
 818         }
 819         poll_wait(file, &buf->vb.done, wait);
 820         if (buf->vb.state == VIDEOBUF_DONE ||
 821             buf->vb.state == VIDEOBUF_ERROR)
 822                 rc =  POLLIN|POLLRDNORM;
 823         else
 824                 rc = 0;
 825 done:
 826         mutex_unlock(&fh->vidq.vb_lock);
 827         return rc;
 828 }
 829
 830 static int video_release(struct file *file)
 831 {
 832         struct cx23885_fh *fh = file->private_data;
 833         struct cx23885_dev *dev = fh->dev;
 834
 835         /* turn off overlay */
 836         if (res_check(fh, RESOURCE_OVERLAY)) {
 837                 /* FIXME */
 838                 res_free(dev, fh, RESOURCE_OVERLAY);
 839         }
 840
 841         /* stop video capture */
 842         if (res_check(fh, RESOURCE_VIDEO)) {
 843                 videobuf_queue_cancel(&fh->vidq);
 844                 res_free(dev, fh, RESOURCE_VIDEO);
 845         }
 846         if (fh->vidq.read_buf) {
 847                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 848                 kfree(fh->vidq.read_buf);
 849         }
 850
 851         /* stop vbi capture */
 852         if (res_check(fh, RESOURCE_VBI)) {
 853                 if (fh->vbiq.streaming)
 854                         videobuf_streamoff(&fh->vbiq);
 855                 if (fh->vbiq.reading)
 856                         videobuf_read_stop(&fh->vbiq);
 857                 res_free(dev, fh, RESOURCE_VBI);
 858         }
 859
 860         videobuf_mmap_free(&fh->vidq);
 861         file->private_data = NULL;
 862         kfree(fh);
 863
 864         /* We are not putting the tuner to sleep here on exit, because
 865          * we want to use the mpeg encoder in another session to capture
 866          * tuner video. Closing this will result in no video to the encoder.
 867          */
 868
 869         return 0;
 870 }
 871
 872 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 873 {
 874         struct cx23885_fh *fh = file->private_data;
 875
 876         return videobuf_mmap_mapper(get_queue(fh), vma);
 877 }
 878
 879 /* ------------------------------------------------------------------ */
 880 /* VIDEO CTRL IOCTLS                                                  */
 881
 882 static int cx23885_get_control(struct cx23885_dev *dev,
 883         struct v4l2_control *ctl)
 884 {
 885         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 886         call_all(dev, core, g_ctrl, ctl);
 887         return 0;
 888 }
 889
 890 static int cx23885_set_control(struct cx23885_dev *dev,
 891         struct v4l2_control *ctl)
 892 {
 893         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 894                 " (disabled - no action)\n", __func__);
 895         return 0;
 896 }
 897
 898 static void init_controls(struct cx23885_dev *dev)
 899 {
 900         struct v4l2_control ctrl;
 901         int i;
 902
 903         for (i = 0; i < CX23885_CTLS; i++) {
 904                 ctrl.id = cx23885_ctls[i].v.id;
 905                 ctrl.value = cx23885_ctls[i].v.default_value;
 906
 907                 cx23885_set_control(dev, &ctrl);
 908         }
 909 }
 910
 911 /* ------------------------------------------------------------------ */
 912 /* VIDEO IOCTLS                                                       */
 913
 914 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 915         struct v4l2_format *f)
 916 {
 917         struct cx23885_fh *fh   = priv;
 918
 919         f->fmt.pix.width        = fh->width;
 920         f->fmt.pix.height       = fh->height;
 921         f->fmt.pix.field        = fh->vidq.field;
 922         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 923         f->fmt.pix.bytesperline =
 924                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 925         f->fmt.pix.sizeimage =
 926                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 927
 928         return 0;
 929 }
 930
 931 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 932         struct v4l2_format *f)
 933 {
 934         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 935         struct cx23885_fmt *fmt;
 936         enum v4l2_field   field;
 937         unsigned int      maxw, maxh;
 938
 939         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 940         if (NULL == fmt)
 941                 return -EINVAL;
 942
 943         field = f->fmt.pix.field;
 944         maxw  = norm_maxw(dev->tvnorm);
 945         maxh  = norm_maxh(dev->tvnorm);
 946
 947         if (V4L2_FIELD_ANY == field) {
 948                 field = (f->fmt.pix.height > maxh/2)
 949                         ? V4L2_FIELD_INTERLACED
 950                         : V4L2_FIELD_BOTTOM;
 951         }
 952
 953         switch (field) {
 954         case V4L2_FIELD_TOP:
 955         case V4L2_FIELD_BOTTOM:
 956                 maxh = maxh / 2;
 957                 break;
 958         case V4L2_FIELD_INTERLACED:
 959                 break;
 960         default:
 961                 return -EINVAL;
 962         }
 963
 964         f->fmt.pix.field = field;
 965         v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
 966                               &f->fmt.pix.height, 32, maxh, 0, 0);
 967         f->fmt.pix.bytesperline =
 968                 (f->fmt.pix.width * fmt->depth) >> 3;
 969         f->fmt.pix.sizeimage =
 970                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 971
 972         return 0;
 973 }
 974
 975 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 976         struct v4l2_format *f)
 977 {
 978         struct cx23885_fh *fh = priv;
 979         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 980         int err;
 981
 982         dprintk(2, "%s()\n", __func__);
 983         err = vidioc_try_fmt_vid_cap(file, priv, f);
 984
 985         if (0 != err)
 986                 return err;
 987         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 988         fh->width      = f->fmt.pix.width;
 989         fh->height     = f->fmt.pix.height;
 990         fh->vidq.field = f->fmt.pix.field;
 991         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
 992                 fh->width, fh->height, fh->vidq.field);
 993         call_all(dev, video, s_fmt, f);
 994         return 0;
 995 }
 996
 997 static int vidioc_querycap(struct file *file, void  *priv,
 998         struct v4l2_capability *cap)
 999 {
1000         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1001
1002         strcpy(cap->driver, "cx23885");
1003         strlcpy(cap->card, cx23885_boards[dev->board].name,
1004                 sizeof(cap->card));
1005         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1006         cap->version = CX23885_VERSION_CODE;
1007         cap->capabilities =
1008                 V4L2_CAP_VIDEO_CAPTURE |
1009                 V4L2_CAP_READWRITE     |
1010                 V4L2_CAP_STREAMING     |
1011                 V4L2_CAP_VBI_CAPTURE;
1012         if (UNSET != dev->tuner_type)
1013                 cap->capabilities |= V4L2_CAP_TUNER;
1014         return 0;
1015 }
1016
1017 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1018         struct v4l2_fmtdesc *f)
1019 {
1020         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1021                 return -EINVAL;
1022
1023         strlcpy(f->description, formats[f->index].name,
1024                 sizeof(f->description));
1025         f->pixelformat = formats[f->index].fourcc;
1026
1027         return 0;
1028 }
1029
1030 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1031 static int vidiocgmbuf(struct file *file, void *priv,
1032         struct video_mbuf *mbuf)
1033 {
1034         struct cx23885_fh *fh = priv;
1035         struct videobuf_queue *q;
1036         struct v4l2_requestbuffers req;
1037         unsigned int i;
1038         int err;
1039
1040         q = get_queue(fh);
1041         memset(&req, 0, sizeof(req));
1042         req.type   = q->type;
1043         req.count  = 8;
1044         req.memory = V4L2_MEMORY_MMAP;
1045         err = videobuf_reqbufs(q, &req);
1046         if (err < 0)
1047                 return err;
1048
1049         mbuf->frames = req.count;
1050         mbuf->size   = 0;
1051         for (i = 0; i < mbuf->frames; i++) {
1052                 mbuf->offsets[i]  = q->bufs[i]->boff;
1053                 mbuf->size       += q->bufs[i]->bsize;
1054         }
1055         return 0;
1056 }
1057 #endif
1058
1059 static int vidioc_reqbufs(struct file *file, void *priv,
1060         struct v4l2_requestbuffers *p)
1061 {
1062         struct cx23885_fh *fh = priv;
1063         return videobuf_reqbufs(get_queue(fh), p);
1064 }
1065
1066 static int vidioc_querybuf(struct file *file, void *priv,
1067         struct v4l2_buffer *p)
1068 {
1069         struct cx23885_fh *fh = priv;
1070         return videobuf_querybuf(get_queue(fh), p);
1071 }
1072
1073 static int vidioc_qbuf(struct file *file, void *priv,
1074         struct v4l2_buffer *p)
1075 {
1076         struct cx23885_fh *fh = priv;
1077         return videobuf_qbuf(get_queue(fh), p);
1078 }
1079
1080 static int vidioc_dqbuf(struct file *file, void *priv,
1081         struct v4l2_buffer *p)
1082 {
1083         struct cx23885_fh *fh = priv;
1084         return videobuf_dqbuf(get_queue(fh), p,
1085                                 file->f_flags & O_NONBLOCK);
1086 }
1087
1088 static int vidioc_streamon(struct file *file, void *priv,
1089         enum v4l2_buf_type i)
1090 {
1091         struct cx23885_fh *fh = priv;
1092         struct cx23885_dev *dev = fh->dev;
1093         dprintk(1, "%s()\n", __func__);
1094
1095         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1096                 return -EINVAL;
1097         if (unlikely(i != fh->type))
1098                 return -EINVAL;
1099
1100         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1101                 return -EBUSY;
1102         return videobuf_streamon(get_queue(fh));
1103 }
1104
1105 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1106 {
1107         struct cx23885_fh *fh = priv;
1108         struct cx23885_dev *dev = fh->dev;
1109         int err, res;
1110         dprintk(1, "%s()\n", __func__);
1111
1112         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1113                 return -EINVAL;
1114         if (i != fh->type)
1115                 return -EINVAL;
1116
1117         res = get_resource(fh);
1118         err = videobuf_streamoff(get_queue(fh));
1119         if (err < 0)
1120                 return err;
1121         res_free(dev, fh, res);
1122         return 0;
1123 }
1124
1125 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1126 {
1127         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1128         dprintk(1, "%s()\n", __func__);
1129
1130         mutex_lock(&dev->lock);
1131         cx23885_set_tvnorm(dev, *tvnorms);
1132         mutex_unlock(&dev->lock);
1133
1134         return 0;
1135 }
1136
1137 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1138 {
1139         static const char *iname[] = {
1140                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1141                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1142                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1143                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1144                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1145                 [CX23885_VMUX_COMPONENT]  = "Component",
1146                 [CX23885_VMUX_TELEVISION] = "Television",
1147                 [CX23885_VMUX_CABLE]      = "Cable TV",
1148                 [CX23885_VMUX_DVB]        = "DVB",
1149                 [CX23885_VMUX_DEBUG]      = "for debug only",
1150         };
1151         unsigned int n;
1152         dprintk(1, "%s()\n", __func__);
1153
1154         n = i->index;
1155         if (n >= 4)
1156                 return -EINVAL;
1157
1158         if (0 == INPUT(n)->type)
1159                 return -EINVAL;
1160
1161         memset(i, 0, sizeof(*i));
1162         i->index = n;
1163         i->type  = V4L2_INPUT_TYPE_CAMERA;
1164         strcpy(i->name, iname[INPUT(n)->type]);
1165         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1166                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1167                 i->type = V4L2_INPUT_TYPE_TUNER;
1168                 i->std = CX23885_NORMS;
1169         return 0;
1170 }
1171
1172 static int vidioc_enum_input(struct file *file, void *priv,
1173                                 struct v4l2_input *i)
1174 {
1175         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1176         dprintk(1, "%s()\n", __func__);
1177         return cx23885_enum_input(dev, i);
1178 }
1179
1180 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1181 {
1182         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1183
1184         *i = dev->input;
1185         dprintk(1, "%s() returns %d\n", __func__, *i);
1186         return 0;
1187 }
1188
1189 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1190 {
1191         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1192
1193         dprintk(1, "%s(%d)\n", __func__, i);
1194
1195         if (i >= 4) {
1196                 dprintk(1, "%s() -EINVAL\n", __func__);
1197                 return -EINVAL;
1198         }
1199
1200         mutex_lock(&dev->lock);
1201         cx23885_video_mux(dev, i);
1202         mutex_unlock(&dev->lock);
1203         return 0;
1204 }
1205
1206 static int vidioc_queryctrl(struct file *file, void *priv,
1207                                 struct v4l2_queryctrl *qctrl)
1208 {
1209         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1210         if (unlikely(qctrl->id == 0))
1211                 return -EINVAL;
1212         return cx23885_ctrl_query(qctrl);
1213 }
1214
1215 static int vidioc_g_ctrl(struct file *file, void *priv,
1216                                 struct v4l2_control *ctl)
1217 {
1218         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1219
1220         return cx23885_get_control(dev, ctl);
1221 }
1222
1223 static int vidioc_s_ctrl(struct file *file, void *priv,
1224                                 struct v4l2_control *ctl)
1225 {
1226         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1227
1228         return cx23885_set_control(dev, ctl);
1229 }
1230
1231 static int vidioc_g_tuner(struct file *file, void *priv,
1232                                 struct v4l2_tuner *t)
1233 {
1234         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1235
1236         if (unlikely(UNSET == dev->tuner_type))
1237                 return -EINVAL;
1238         if (0 != t->index)
1239                 return -EINVAL;
1240
1241         strcpy(t->name, "Television");
1242         t->type       = V4L2_TUNER_ANALOG_TV;
1243         t->capability = V4L2_TUNER_CAP_NORM;
1244         t->rangehigh  = 0xffffffffUL;
1245         t->signal = 0xffff ; /* LOCKED */
1246         return 0;
1247 }
1248
1249 static int vidioc_s_tuner(struct file *file, void *priv,
1250                                 struct v4l2_tuner *t)
1251 {
1252         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1253
1254         if (UNSET == dev->tuner_type)
1255                 return -EINVAL;
1256         if (0 != t->index)
1257                 return -EINVAL;
1258         return 0;
1259 }
1260
1261 static int vidioc_g_frequency(struct file *file, void *priv,
1262                                 struct v4l2_frequency *f)
1263 {
1264         struct cx23885_fh *fh = priv;
1265         struct cx23885_dev *dev = fh->dev;
1266
1267         if (unlikely(UNSET == dev->tuner_type))
1268                 return -EINVAL;
1269
1270         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1271         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1272         f->frequency = dev->freq;
1273
1274         call_all(dev, tuner, g_frequency, f);
1275
1276         return 0;
1277 }
1278
1279 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1280 {
1281         if (unlikely(UNSET == dev->tuner_type))
1282                 return -EINVAL;
1283         if (unlikely(f->tuner != 0))
1284                 return -EINVAL;
1285
1286         mutex_lock(&dev->lock);
1287         dev->freq = f->frequency;
1288
1289         call_all(dev, tuner, s_frequency, f);
1290
1291         /* When changing channels it is required to reset TVAUDIO */
1292         msleep(10);
1293
1294         mutex_unlock(&dev->lock);
1295
1296         return 0;
1297 }
1298
1299 static int vidioc_s_frequency(struct file *file, void *priv,
1300                                 struct v4l2_frequency *f)
1301 {
1302         struct cx23885_fh *fh = priv;
1303         struct cx23885_dev *dev = fh->dev;
1304
1305         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1306                 return -EINVAL;
1307         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1308                 return -EINVAL;
1309
1310         return
1311                 cx23885_set_freq(dev, f);
1312 }
1313
1314 /* ----------------------------------------------------------- */
1315
1316 static void cx23885_vid_timeout(unsigned long data)
1317 {
1318         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1319         struct cx23885_dmaqueue *q = &dev->vidq;
1320         struct cx23885_buffer *buf;
1321         unsigned long flags;
1322
1323         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1324
1325         cx_clear(VID_A_DMA_CTL, 0x11);
1326
1327         spin_lock_irqsave(&dev->slock, flags);
1328         while (!list_empty(&q->active)) {
1329                 buf = list_entry(q->active.next,
1330                         struct cx23885_buffer, vb.queue);
1331                 list_del(&buf->vb.queue);
1332                 buf->vb.state = VIDEOBUF_ERROR;
1333                 wake_up(&buf->vb.done);
1334                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1335                         dev->name, buf, buf->vb.i,
1336                         (unsigned long)buf->risc.dma);
1337         }
1338         cx23885_restart_video_queue(dev, q);
1339         spin_unlock_irqrestore(&dev->slock, flags);
1340 }
1341
1342 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1343 {
1344         u32 mask, count;
1345         int handled = 0;
1346
1347         mask   = cx_read(VID_A_INT_MSK);
1348         if (0 == (status & mask))
1349                 return handled;
1350         cx_write(VID_A_INT_STAT, status);
1351
1352         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1353         /* risc op code error */
1354         if (status & (1 << 16)) {
1355                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1356                         dev->name);
1357                 cx_clear(VID_A_DMA_CTL, 0x11);
1358                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1359         }
1360
1361         /* risc1 y */
1362         if (status & 0x01) {
1363                 spin_lock(&dev->slock);
1364                 count = cx_read(VID_A_GPCNT);
1365                 cx23885_video_wakeup(dev, &dev->vidq, count);
1366                 spin_unlock(&dev->slock);
1367                 handled++;
1368         }
1369         /* risc2 y */
1370         if (status & 0x10) {
1371                 dprintk(2, "stopper video\n");
1372                 spin_lock(&dev->slock);
1373                 cx23885_restart_video_queue(dev, &dev->vidq);
1374                 spin_unlock(&dev->slock);
1375                 handled++;
1376         }
1377
1378         return handled;
1379 }
1380
1381 /* ----------------------------------------------------------- */
1382 /* exported stuff                                              */
1383
1384 static const struct v4l2_file_operations video_fops = {
1385         .owner         = THIS_MODULE,
1386         .open          = video_open,
1387         .release       = video_release,
1388         .read          = video_read,
1389         .poll          = video_poll,
1390         .mmap          = video_mmap,
1391         .ioctl         = video_ioctl2,
1392 };
1393
1394 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1395         .vidioc_querycap      = vidioc_querycap,
1396         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1397         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1398         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1399         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1400         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1401         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1402         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1403         .vidioc_reqbufs       = vidioc_reqbufs,
1404         .vidioc_querybuf      = vidioc_querybuf,
1405         .vidioc_qbuf          = vidioc_qbuf,
1406         .vidioc_dqbuf         = vidioc_dqbuf,
1407         .vidioc_s_std         = vidioc_s_std,
1408         .vidioc_enum_input    = vidioc_enum_input,
1409         .vidioc_g_input       = vidioc_g_input,
1410         .vidioc_s_input       = vidioc_s_input,
1411         .vidioc_queryctrl     = vidioc_queryctrl,
1412         .vidioc_g_ctrl        = vidioc_g_ctrl,
1413         .vidioc_s_ctrl        = vidioc_s_ctrl,
1414         .vidioc_streamon      = vidioc_streamon,
1415         .vidioc_streamoff     = vidioc_streamoff,
1416 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1417         .vidiocgmbuf          = vidiocgmbuf,
1418 #endif
1419         .vidioc_g_tuner       = vidioc_g_tuner,
1420         .vidioc_s_tuner       = vidioc_s_tuner,
1421         .vidioc_g_frequency   = vidioc_g_frequency,
1422         .vidioc_s_frequency   = vidioc_s_frequency,
1423         .vidioc_g_chip_ident  = cx23885_g_chip_ident,
1424 #ifdef CONFIG_VIDEO_ADV_DEBUG
1425         .vidioc_g_register    = cx23885_g_register,
1426         .vidioc_s_register    = cx23885_s_register,
1427 #endif
1428 };
1429
1430 static struct video_device cx23885_vbi_template;
1431 static struct video_device cx23885_video_template = {
1432         .name                 = "cx23885-video",
1433         .fops                 = &video_fops,
1434         .minor                = -1,
1435         .ioctl_ops            = &video_ioctl_ops,
1436         .tvnorms              = CX23885_NORMS,
1437         .current_norm         = V4L2_STD_NTSC_M,
1438 };
1439
1440 static const struct v4l2_file_operations radio_fops = {
1441         .owner         = THIS_MODULE,
1442         .open          = video_open,
1443         .release       = video_release,
1444         .ioctl         = video_ioctl2,
1445 };
1446
1447
1448 void cx23885_video_unregister(struct cx23885_dev *dev)
1449 {
1450         dprintk(1, "%s()\n", __func__);
1451         cx_clear(PCI_INT_MSK, 1);
1452
1453         if (dev->video_dev) {
1454                 if (video_is_registered(dev->video_dev))
1455                         video_unregister_device(dev->video_dev);
1456                 else
1457                         video_device_release(dev->video_dev);
1458                 dev->video_dev = NULL;
1459
1460                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1461         }
1462 }
1463
1464 int cx23885_video_register(struct cx23885_dev *dev)
1465 {
1466         int err;
1467
1468         dprintk(1, "%s()\n", __func__);
1469         spin_lock_init(&dev->slock);
1470
1471         /* Initialize VBI template */
1472         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1473                 sizeof(cx23885_vbi_template));
1474         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1475
1476         dev->tvnorm = cx23885_video_template.current_norm;
1477
1478         /* init video dma queues */
1479         INIT_LIST_HEAD(&dev->vidq.active);
1480         INIT_LIST_HEAD(&dev->vidq.queued);
1481         dev->vidq.timeout.function = cx23885_vid_timeout;
1482         dev->vidq.timeout.data = (unsigned long)dev;
1483         init_timer(&dev->vidq.timeout);
1484         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1485                 VID_A_DMA_CTL, 0x11, 0x00);
1486
1487         /* Don't enable VBI yet */
1488         cx_set(PCI_INT_MSK, 1);
1489
1490         if (TUNER_ABSENT != dev->tuner_type) {
1491                 struct v4l2_subdev *sd = NULL;
1492
1493                 if (dev->tuner_addr)
1494                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1495                                 &dev->i2c_bus[1].i2c_adap,
1496                                 "tuner", "tuner", dev->tuner_addr, NULL);
1497                 else
1498                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1499                                 &dev->i2c_bus[1].i2c_adap,
1500                                 "tuner", "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1501                 if (sd) {
1502                         struct tuner_setup tun_setup;
1503
1504                         memset(&tun_setup, 0, sizeof(tun_setup));
1505                         tun_setup.mode_mask = T_ANALOG_TV;
1506                         tun_setup.type = dev->tuner_type;
1507                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1508                         tun_setup.tuner_callback = cx23885_tuner_callback;
1509
1510                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1511                 }
1512         }
1513
1514
1515         /* register v4l devices */
1516         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1517                 &cx23885_video_template, "video");
1518         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1519                                     video_nr[dev->nr]);
1520         if (err < 0) {
1521                 printk(KERN_INFO "%s: can't register video device\n",
1522                         dev->name);
1523                 goto fail_unreg;
1524         }
1525         printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
1526                dev->name, video_device_node_name(dev->video_dev));
1527         /* initial device configuration */
1528         mutex_lock(&dev->lock);
1529         cx23885_set_tvnorm(dev, dev->tvnorm);
1530         init_controls(dev);
1531         cx23885_video_mux(dev, 0);
1532         mutex_unlock(&dev->lock);
1533
1534         return 0;
1535
1536 fail_unreg:
1537         cx23885_video_unregister(dev);
1538         return err;
1539 }
1540