drivers/media/pci/cx25821/cx25821-video.c

   1 /*
   2  *  Driver for the Conexant CX25821 PCIe bridge
   3  *
   4  *  Copyright (C) 2009 Conexant Systems Inc.
   5  *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
   6  *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
   7  *  Parts adapted/taken from Eduardo Moscoso Rubino
   8  *  Copyright (C) 2009 Eduardo Moscoso Rubino <moscoso@TopoLogica.com>
   9  *
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *
  20  *  GNU General Public License for more details.
  21  *
  22  *  You should have received a copy of the GNU General Public License
  23  *  along with this program; if not, write to the Free Software
  24  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  25  */
  26
  27 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  28
  29 #include "cx25821-video.h"
  30
  31 MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
  32 MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
  33 MODULE_LICENSE("GPL");
  34
  35 static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
  36 static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
  37
  38 module_param_array(video_nr, int, NULL, 0444);
  39 module_param_array(radio_nr, int, NULL, 0444);
  40
  41 MODULE_PARM_DESC(video_nr, "video device numbers");
  42 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  43
  44 static unsigned int video_debug = VIDEO_DEBUG;
  45 module_param(video_debug, int, 0644);
  46 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  47
  48 static unsigned int irq_debug;
  49 module_param(irq_debug, int, 0644);
  50 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  51
  52 unsigned int vid_limit = 16;
  53 module_param(vid_limit, int, 0644);
  54 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  55
  56 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
  57
  58 static const struct v4l2_file_operations video_fops;
  59 static const struct v4l2_ioctl_ops video_ioctl_ops;
  60
  61 #define FORMAT_FLAGS_PACKED       0x01
  62
  63 struct cx25821_fmt formats[] = {
  64         {
  65                 .name = "8 bpp, gray",
  66                 .fourcc = V4L2_PIX_FMT_GREY,
  67                 .depth = 8,
  68                 .flags = FORMAT_FLAGS_PACKED,
  69          }, {
  70                 .name = "4:1:1, packed, Y41P",
  71                 .fourcc = V4L2_PIX_FMT_Y41P,
  72                 .depth = 12,
  73                 .flags = FORMAT_FLAGS_PACKED,
  74         }, {
  75                 .name = "4:2:2, packed, YUYV",
  76                 .fourcc = V4L2_PIX_FMT_YUYV,
  77                 .depth = 16,
  78                 .flags = FORMAT_FLAGS_PACKED,
  79         }, {
  80                 .name = "4:2:2, packed, UYVY",
  81                 .fourcc = V4L2_PIX_FMT_UYVY,
  82                 .depth = 16,
  83                 .flags = FORMAT_FLAGS_PACKED,
  84         }, {
  85                 .name = "4:2:0, YUV",
  86                 .fourcc = V4L2_PIX_FMT_YUV420,
  87                 .depth = 12,
  88                 .flags = FORMAT_FLAGS_PACKED,
  89         },
  90 };
  91
  92 int cx25821_get_format_size(void)
  93 {
  94         return ARRAY_SIZE(formats);
  95 }
  96
  97 struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
  98 {
  99         unsigned int i;
 100
 101         if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P)
 102                 return formats + 1;
 103
 104         for (i = 0; i < ARRAY_SIZE(formats); i++)
 105                 if (formats[i].fourcc == fourcc)
 106                         return formats + i;
 107
 108         pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 109         return NULL;
 110 }
 111
 112 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
 113                           u32 count)
 114 {
 115         struct cx25821_buffer *buf;
 116         int bc;
 117
 118         for (bc = 0;; bc++) {
 119                 if (list_empty(&q->active)) {
 120                         dprintk(1, "bc=%d (=0: active empty)\n", bc);
 121                         break;
 122                 }
 123
 124                 buf = list_entry(q->active.next, struct cx25821_buffer,
 125                                 vb.queue);
 126
 127                 /* count comes from the hw and it is 16bit wide --
 128                  * this trick handles wrap-arounds correctly for
 129                  * up to 32767 buffers in flight... */
 130                 if ((s16) (count - buf->count) < 0)
 131                         break;
 132
 133                 v4l2_get_timestamp(&buf->vb.ts);
 134                 buf->vb.state = VIDEOBUF_DONE;
 135                 list_del(&buf->vb.queue);
 136                 wake_up(&buf->vb.done);
 137         }
 138
 139         if (list_empty(&q->active))
 140                 del_timer(&q->timeout);
 141         else
 142                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 143         if (bc != 1)
 144                 pr_err("%s: %d buffers handled (should be 1)\n", __func__, bc);
 145 }
 146
 147 #ifdef TUNER_FLAG
 148 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
 149 {
 150         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 151                 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
 152
 153         dev->tvnorm = norm;
 154
 155         /* Tell the internal A/V decoder */
 156         cx25821_call_all(dev, core, s_std, norm);
 157
 158         return 0;
 159 }
 160 #endif
 161
 162 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
 163                                        struct pci_dev *pci,
 164                                        struct video_device *template,
 165                                        char *type)
 166 {
 167         struct video_device *vfd;
 168         dprintk(1, "%s()\n", __func__);
 169
 170         vfd = video_device_alloc();
 171         if (NULL == vfd)
 172                 return NULL;
 173         *vfd = *template;
 174         vfd->v4l2_dev = &dev->v4l2_dev;
 175         vfd->release = video_device_release;
 176         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
 177                  cx25821_boards[dev->board].name);
 178         video_set_drvdata(vfd, dev);
 179         return vfd;
 180 }
 181
 182 /*
 183 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
 184 {
 185         int i;
 186
 187         if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
 188                 return -EINVAL;
 189         for (i = 0; i < CX25821_CTLS; i++)
 190                 if (cx25821_ctls[i].v.id == qctrl->id)
 191                         break;
 192         if (i == CX25821_CTLS) {
 193                 *qctrl = no_ctl;
 194                 return 0;
 195         }
 196         *qctrl = cx25821_ctls[i].v;
 197         return 0;
 198 }
 199 */
 200
 201 /* resource management */
 202 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
 203                     unsigned int bit)
 204 {
 205         dprintk(1, "%s()\n", __func__);
 206         if (fh->resources & bit)
 207                 /* have it already allocated */
 208                 return 1;
 209
 210         /* is it free? */
 211         mutex_lock(&dev->lock);
 212         if (dev->channels[fh->channel_id].resources & bit) {
 213                 /* no, someone else uses it */
 214                 mutex_unlock(&dev->lock);
 215                 return 0;
 216         }
 217         /* it's free, grab it */
 218         fh->resources |= bit;
 219         dev->channels[fh->channel_id].resources |= bit;
 220         dprintk(1, "res: get %d\n", bit);
 221         mutex_unlock(&dev->lock);
 222         return 1;
 223 }
 224
 225 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
 226 {
 227         return fh->resources & bit;
 228 }
 229
 230 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
 231 {
 232         return fh->dev->channels[fh->channel_id].resources & bit;
 233 }
 234
 235 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
 236                       unsigned int bits)
 237 {
 238         BUG_ON((fh->resources & bits) != bits);
 239         dprintk(1, "%s()\n", __func__);
 240
 241         mutex_lock(&dev->lock);
 242         fh->resources &= ~bits;
 243         dev->channels[fh->channel_id].resources &= ~bits;
 244         dprintk(1, "res: put %d\n", bits);
 245         mutex_unlock(&dev->lock);
 246 }
 247
 248 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
 249 {
 250         struct v4l2_routing route;
 251         memset(&route, 0, sizeof(route));
 252
 253         dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 254                 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
 255                 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
 256         dev->input = input;
 257
 258         route.input = INPUT(input)->vmux;
 259
 260         /* Tell the internal A/V decoder */
 261         cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
 262
 263         return 0;
 264 }
 265
 266 int cx25821_start_video_dma(struct cx25821_dev *dev,
 267                             struct cx25821_dmaqueue *q,
 268                             struct cx25821_buffer *buf,
 269                             struct sram_channel *channel)
 270 {
 271         int tmp = 0;
 272
 273         /* setup fifo + format */
 274         cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
 275
 276         /* reset counter */
 277         cx_write(channel->gpcnt_ctl, 3);
 278         q->count = 1;
 279
 280         /* enable irq */
 281         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
 282         cx_set(channel->int_msk, 0x11);
 283
 284         /* start dma */
 285         cx_write(channel->dma_ctl, 0x11);       /* FIFO and RISC enable */
 286
 287         /* make sure upstream setting if any is reversed */
 288         tmp = cx_read(VID_CH_MODE_SEL);
 289         cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
 290
 291         return 0;
 292 }
 293
 294 static int cx25821_restart_video_queue(struct cx25821_dev *dev,
 295                                        struct cx25821_dmaqueue *q,
 296                                        struct sram_channel *channel)
 297 {
 298         struct cx25821_buffer *buf, *prev;
 299         struct list_head *item;
 300
 301         if (!list_empty(&q->active)) {
 302                 buf = list_entry(q->active.next, struct cx25821_buffer,
 303                                 vb.queue);
 304
 305                 cx25821_start_video_dma(dev, q, buf, channel);
 306
 307                 list_for_each(item, &q->active) {
 308                         buf = list_entry(item, struct cx25821_buffer, vb.queue);
 309                         buf->count = q->count++;
 310                 }
 311
 312                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 313                 return 0;
 314         }
 315
 316         prev = NULL;
 317         for (;;) {
 318                 if (list_empty(&q->queued))
 319                         return 0;
 320
 321                 buf = list_entry(q->queued.next, struct cx25821_buffer,
 322                                 vb.queue);
 323
 324                 if (NULL == prev) {
 325                         list_move_tail(&buf->vb.queue, &q->active);
 326                         cx25821_start_video_dma(dev, q, buf, channel);
 327                         buf->vb.state = VIDEOBUF_ACTIVE;
 328                         buf->count = q->count++;
 329                         mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 330                 } else if (prev->vb.width == buf->vb.width &&
 331                            prev->vb.height == buf->vb.height &&
 332                            prev->fmt == buf->fmt) {
 333                         list_move_tail(&buf->vb.queue, &q->active);
 334                         buf->vb.state = VIDEOBUF_ACTIVE;
 335                         buf->count = q->count++;
 336                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 337                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 338                 } else {
 339                         return 0;
 340                 }
 341                 prev = buf;
 342         }
 343 }
 344
 345 static void cx25821_vid_timeout(unsigned long data)
 346 {
 347         struct cx25821_data *timeout_data = (struct cx25821_data *)data;
 348         struct cx25821_dev *dev = timeout_data->dev;
 349         struct sram_channel *channel = timeout_data->channel;
 350         struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
 351         struct cx25821_buffer *buf;
 352         unsigned long flags;
 353
 354         /* cx25821_sram_channel_dump(dev, channel); */
 355         cx_clear(channel->dma_ctl, 0x11);
 356
 357         spin_lock_irqsave(&dev->slock, flags);
 358         while (!list_empty(&q->active)) {
 359                 buf = list_entry(q->active.next, struct cx25821_buffer,
 360                                 vb.queue);
 361                 list_del(&buf->vb.queue);
 362
 363                 buf->vb.state = VIDEOBUF_ERROR;
 364                 wake_up(&buf->vb.done);
 365         }
 366
 367         cx25821_restart_video_queue(dev, q, channel);
 368         spin_unlock_irqrestore(&dev->slock, flags);
 369 }
 370
 371 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
 372 {
 373         u32 count = 0;
 374         int handled = 0;
 375         u32 mask;
 376         struct sram_channel *channel = dev->channels[chan_num].sram_channels;
 377
 378         mask = cx_read(channel->int_msk);
 379         if (0 == (status & mask))
 380                 return handled;
 381
 382         cx_write(channel->int_stat, status);
 383
 384         /* risc op code error */
 385         if (status & (1 << 16)) {
 386                 pr_warn("%s, %s: video risc op code error\n",
 387                         dev->name, channel->name);
 388                 cx_clear(channel->dma_ctl, 0x11);
 389                 cx25821_sram_channel_dump(dev, channel);
 390         }
 391
 392         /* risc1 y */
 393         if (status & FLD_VID_DST_RISC1) {
 394                 spin_lock(&dev->slock);
 395                 count = cx_read(channel->gpcnt);
 396                 cx25821_video_wakeup(dev, &dev->channels[channel->i].vidq,
 397                                 count);
 398                 spin_unlock(&dev->slock);
 399                 handled++;
 400         }
 401
 402         /* risc2 y */
 403         if (status & 0x10) {
 404                 dprintk(2, "stopper video\n");
 405                 spin_lock(&dev->slock);
 406                 cx25821_restart_video_queue(dev,
 407                                 &dev->channels[channel->i].vidq, channel);
 408                 spin_unlock(&dev->slock);
 409                 handled++;
 410         }
 411         return handled;
 412 }
 413
 414 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
 415 {
 416         if (dev->ioctl_dev) {
 417                 if (video_is_registered(dev->ioctl_dev))
 418                         video_unregister_device(dev->ioctl_dev);
 419                 else
 420                         video_device_release(dev->ioctl_dev);
 421
 422                 dev->ioctl_dev = NULL;
 423         }
 424 }
 425
 426 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
 427 {
 428         cx_clear(PCI_INT_MSK, 1);
 429
 430         if (dev->channels[chan_num].video_dev) {
 431                 if (video_is_registered(dev->channels[chan_num].video_dev))
 432                         video_unregister_device(
 433                                         dev->channels[chan_num].video_dev);
 434                 else
 435                         video_device_release(
 436                                         dev->channels[chan_num].video_dev);
 437
 438                 dev->channels[chan_num].video_dev = NULL;
 439
 440                 btcx_riscmem_free(dev->pci,
 441                                 &dev->channels[chan_num].vidq.stopper);
 442
 443                 pr_warn("device %d released!\n", chan_num);
 444         }
 445
 446 }
 447
 448 int cx25821_video_register(struct cx25821_dev *dev)
 449 {
 450         int err;
 451         int i;
 452
 453         struct video_device cx25821_video_device = {
 454                 .name = "cx25821-video",
 455                 .fops = &video_fops,
 456                 .minor = -1,
 457                 .ioctl_ops = &video_ioctl_ops,
 458                 .tvnorms = CX25821_NORMS,
 459                 .current_norm = V4L2_STD_NTSC_M,
 460         };
 461
 462         spin_lock_init(&dev->slock);
 463
 464         for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
 465                 cx25821_init_controls(dev, i);
 466
 467                 cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
 468                         dev->channels[i].sram_channels->dma_ctl, 0x11, 0);
 469
 470                 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
 471                 dev->channels[i].video_dev = NULL;
 472                 dev->channels[i].resources = 0;
 473
 474                 cx_write(dev->channels[i].sram_channels->int_stat, 0xffffffff);
 475
 476                 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
 477                 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
 478
 479                 dev->channels[i].timeout_data.dev = dev;
 480                 dev->channels[i].timeout_data.channel =
 481                         &cx25821_sram_channels[i];
 482                 dev->channels[i].vidq.timeout.function = cx25821_vid_timeout;
 483                 dev->channels[i].vidq.timeout.data =
 484                         (unsigned long)&dev->channels[i].timeout_data;
 485                 init_timer(&dev->channels[i].vidq.timeout);
 486
 487                 /* register v4l devices */
 488                 dev->channels[i].video_dev = cx25821_vdev_init(dev, dev->pci,
 489                                 &cx25821_video_device, "video");
 490
 491                 err = video_register_device(dev->channels[i].video_dev,
 492                                 VFL_TYPE_GRABBER, video_nr[dev->nr]);
 493
 494                 if (err < 0)
 495                         goto fail_unreg;
 496
 497         }
 498
 499         /* set PCI interrupt */
 500         cx_set(PCI_INT_MSK, 0xff);
 501
 502         /* initial device configuration */
 503         mutex_lock(&dev->lock);
 504 #ifdef TUNER_FLAG
 505         dev->tvnorm = cx25821_video_device.current_norm;
 506         cx25821_set_tvnorm(dev, dev->tvnorm);
 507 #endif
 508         mutex_unlock(&dev->lock);
 509
 510         return 0;
 511
 512 fail_unreg:
 513         cx25821_video_unregister(dev, i);
 514         return err;
 515 }
 516
 517 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 518                  unsigned int *size)
 519 {
 520         struct cx25821_fh *fh = q->priv_data;
 521
 522         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 523
 524         if (0 == *count)
 525                 *count = 32;
 526
 527         if (*size * *count > vid_limit * 1024 * 1024)
 528                 *count = (vid_limit * 1024 * 1024) / *size;
 529
 530         return 0;
 531 }
 532
 533 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 534                    enum v4l2_field field)
 535 {
 536         struct cx25821_fh *fh = q->priv_data;
 537         struct cx25821_dev *dev = fh->dev;
 538         struct cx25821_buffer *buf =
 539                 container_of(vb, struct cx25821_buffer, vb);
 540         int rc, init_buffer = 0;
 541         u32 line0_offset;
 542         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 543         int bpl_local = LINE_SIZE_D1;
 544         int channel_opened = fh->channel_id;
 545
 546         BUG_ON(NULL == fh->fmt);
 547         if (fh->width < 48 || fh->width > 720 ||
 548             fh->height < 32 || fh->height > 576)
 549                 return -EINVAL;
 550
 551         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 552
 553         if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 554                 return -EINVAL;
 555
 556         if (buf->fmt != fh->fmt ||
 557             buf->vb.width != fh->width ||
 558             buf->vb.height != fh->height || buf->vb.field != field) {
 559                 buf->fmt = fh->fmt;
 560                 buf->vb.width = fh->width;
 561                 buf->vb.height = fh->height;
 562                 buf->vb.field = field;
 563                 init_buffer = 1;
 564         }
 565
 566         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 567                 init_buffer = 1;
 568                 rc = videobuf_iolock(q, &buf->vb, NULL);
 569                 if (0 != rc) {
 570                         printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
 571                         goto fail;
 572                 }
 573         }
 574
 575         dprintk(1, "init_buffer=%d\n", init_buffer);
 576
 577         if (init_buffer) {
 578
 579                 channel_opened = dev->channel_opened;
 580                 if (channel_opened < 0 || channel_opened > 7)
 581                         channel_opened = 7;
 582
 583                 if (dev->channels[channel_opened].pixel_formats ==
 584                                 PIXEL_FRMT_411)
 585                         buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
 586                 else
 587                         buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
 588
 589                 if (dev->channels[channel_opened].pixel_formats ==
 590                                 PIXEL_FRMT_411) {
 591                         bpl_local = buf->bpl;
 592                 } else {
 593                         bpl_local = buf->bpl;   /* Default */
 594
 595                         if (channel_opened >= 0 && channel_opened <= 7) {
 596                                 if (dev->channels[channel_opened]
 597                                                 .use_cif_resolution) {
 598                                         if (dev->tvnorm & V4L2_STD_PAL_BG ||
 599                                             dev->tvnorm & V4L2_STD_PAL_DK)
 600                                                 bpl_local = 352 << 1;
 601                                         else
 602                                                 bpl_local = dev->channels[
 603                                                         channel_opened].
 604                                                         cif_width << 1;
 605                                 }
 606                         }
 607                 }
 608
 609                 switch (buf->vb.field) {
 610                 case V4L2_FIELD_TOP:
 611                         cx25821_risc_buffer(dev->pci, &buf->risc,
 612                                             dma->sglist, 0, UNSET,
 613                                             buf->bpl, 0, buf->vb.height);
 614                         break;
 615                 case V4L2_FIELD_BOTTOM:
 616                         cx25821_risc_buffer(dev->pci, &buf->risc,
 617                                             dma->sglist, UNSET, 0,
 618                                             buf->bpl, 0, buf->vb.height);
 619                         break;
 620                 case V4L2_FIELD_INTERLACED:
 621                         /* All other formats are top field first */
 622                         line0_offset = 0;
 623                         dprintk(1, "top field first\n");
 624
 625                         cx25821_risc_buffer(dev->pci, &buf->risc,
 626                                             dma->sglist, line0_offset,
 627                                             bpl_local, bpl_local, bpl_local,
 628                                             buf->vb.height >> 1);
 629                         break;
 630                 case V4L2_FIELD_SEQ_TB:
 631                         cx25821_risc_buffer(dev->pci, &buf->risc,
 632                                             dma->sglist,
 633                                             0, buf->bpl * (buf->vb.height >> 1),
 634                                             buf->bpl, 0, buf->vb.height >> 1);
 635                         break;
 636                 case V4L2_FIELD_SEQ_BT:
 637                         cx25821_risc_buffer(dev->pci, &buf->risc,
 638                                             dma->sglist,
 639                                             buf->bpl * (buf->vb.height >> 1), 0,
 640                                             buf->bpl, 0, buf->vb.height >> 1);
 641                         break;
 642                 default:
 643                         BUG();
 644                 }
 645         }
 646
 647         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 648                 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
 649                 fh->fmt->name, (unsigned long)buf->risc.dma);
 650
 651         buf->vb.state = VIDEOBUF_PREPARED;
 652
 653         return 0;
 654
 655 fail:
 656         cx25821_free_buffer(q, buf);
 657         return rc;
 658 }
 659
 660 void cx25821_buffer_release(struct videobuf_queue *q,
 661                             struct videobuf_buffer *vb)
 662 {
 663         struct cx25821_buffer *buf =
 664                 container_of(vb, struct cx25821_buffer, vb);
 665
 666         cx25821_free_buffer(q, buf);
 667 }
 668
 669 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
 670 {
 671         switch (fh->type) {
 672         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 673                 return &fh->vidq;
 674         default:
 675                 BUG();
 676                 return NULL;
 677         }
 678 }
 679
 680 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
 681 {
 682         switch (fh->type) {
 683         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 684                 return resource;
 685         default:
 686                 BUG();
 687                 return 0;
 688         }
 689 }
 690
 691 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
 692 {
 693         struct cx25821_fh *fh = file->private_data;
 694
 695         return videobuf_mmap_mapper(get_queue(fh), vma);
 696 }
 697
 698
 699 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 700 {
 701         struct cx25821_buffer *buf =
 702                 container_of(vb, struct cx25821_buffer, vb);
 703         struct cx25821_buffer *prev;
 704         struct cx25821_fh *fh = vq->priv_data;
 705         struct cx25821_dev *dev = fh->dev;
 706         struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
 707
 708         /* add jump to stopper */
 709         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 710         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 711         buf->risc.jmp[2] = cpu_to_le32(0);      /* bits 63-32 */
 712
 713         dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
 714
 715         if (!list_empty(&q->queued)) {
 716                 list_add_tail(&buf->vb.queue, &q->queued);
 717                 buf->vb.state = VIDEOBUF_QUEUED;
 718                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
 719                                 buf->vb.i);
 720
 721         } else if (list_empty(&q->active)) {
 722                 list_add_tail(&buf->vb.queue, &q->active);
 723                 cx25821_start_video_dma(dev, q, buf,
 724                                 dev->channels[fh->channel_id].sram_channels);
 725                 buf->vb.state = VIDEOBUF_ACTIVE;
 726                 buf->count = q->count++;
 727                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 728                 dprintk(2, "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
 729                                 buf, buf->vb.i, buf->count, q->count);
 730         } else {
 731                 prev = list_entry(q->active.prev, struct cx25821_buffer,
 732                                 vb.queue);
 733                 if (prev->vb.width == buf->vb.width
 734                    && prev->vb.height == buf->vb.height
 735                    && prev->fmt == buf->fmt) {
 736                         list_add_tail(&buf->vb.queue, &q->active);
 737                         buf->vb.state = VIDEOBUF_ACTIVE;
 738                         buf->count = q->count++;
 739                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 740
 741                         /* 64 bit bits 63-32 */
 742                         prev->risc.jmp[2] = cpu_to_le32(0);
 743                         dprintk(2, "[%p/%d] buffer_queue - append to active, buf->count=%d\n",
 744                                         buf, buf->vb.i, buf->count);
 745
 746                 } else {
 747                         list_add_tail(&buf->vb.queue, &q->queued);
 748                         buf->vb.state = VIDEOBUF_QUEUED;
 749                         dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
 750                                         buf->vb.i);
 751                 }
 752         }
 753
 754         if (list_empty(&q->active))
 755                 dprintk(2, "active queue empty!\n");
 756 }
 757
 758 static struct videobuf_queue_ops cx25821_video_qops = {
 759         .buf_setup = cx25821_buffer_setup,
 760         .buf_prepare = cx25821_buffer_prepare,
 761         .buf_queue = buffer_queue,
 762         .buf_release = cx25821_buffer_release,
 763 };
 764
 765 static int video_open(struct file *file)
 766 {
 767         struct video_device *vdev = video_devdata(file);
 768         struct cx25821_dev *h, *dev = video_drvdata(file);
 769         struct cx25821_fh *fh;
 770         struct list_head *list;
 771         int minor = video_devdata(file)->minor;
 772         enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 773         u32 pix_format;
 774         int ch_id = 0;
 775         int i;
 776
 777         dprintk(1, "open dev=%s type=%s\n", video_device_node_name(vdev),
 778                         v4l2_type_names[type]);
 779
 780         /* allocate + initialize per filehandle data */
 781         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 782         if (NULL == fh)
 783                 return -ENOMEM;
 784
 785         mutex_lock(&cx25821_devlist_mutex);
 786
 787         list_for_each(list, &cx25821_devlist)
 788         {
 789                 h = list_entry(list, struct cx25821_dev, devlist);
 790
 791                 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
 792                         if (h->channels[i].video_dev &&
 793                             h->channels[i].video_dev->minor == minor) {
 794                                 dev = h;
 795                                 ch_id = i;
 796                                 type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 797                         }
 798                 }
 799         }
 800
 801         if (NULL == dev) {
 802                 mutex_unlock(&cx25821_devlist_mutex);
 803                 kfree(fh);
 804                 return -ENODEV;
 805         }
 806
 807         file->private_data = fh;
 808         fh->dev = dev;
 809         fh->type = type;
 810         fh->width = 720;
 811         fh->channel_id = ch_id;
 812
 813         if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
 814                 fh->height = 576;
 815         else
 816                 fh->height = 480;
 817
 818         dev->channel_opened = fh->channel_id;
 819         if (dev->channels[ch_id].pixel_formats == PIXEL_FRMT_411)
 820                 pix_format = V4L2_PIX_FMT_Y41P;
 821         else
 822                 pix_format = V4L2_PIX_FMT_YUYV;
 823         fh->fmt = cx25821_format_by_fourcc(pix_format);
 824
 825         v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
 826
 827         videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops, &dev->pci->dev,
 828                         &dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE,
 829                         V4L2_FIELD_INTERLACED, sizeof(struct cx25821_buffer),
 830                         fh, NULL);
 831
 832         dprintk(1, "post videobuf_queue_init()\n");
 833         mutex_unlock(&cx25821_devlist_mutex);
 834
 835         return 0;
 836 }
 837
 838 static ssize_t video_read(struct file *file, char __user * data, size_t count,
 839                          loff_t *ppos)
 840 {
 841         struct cx25821_fh *fh = file->private_data;
 842
 843         switch (fh->type) {
 844         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 845                 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
 846                         return -EBUSY;
 847
 848                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 849                                         file->f_flags & O_NONBLOCK);
 850
 851         default:
 852                 BUG();
 853                 return 0;
 854         }
 855 }
 856
 857 static unsigned int video_poll(struct file *file,
 858                               struct poll_table_struct *wait)
 859 {
 860         struct cx25821_fh *fh = file->private_data;
 861         struct cx25821_buffer *buf;
 862
 863         if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
 864                 /* streaming capture */
 865                 if (list_empty(&fh->vidq.stream))
 866                         return POLLERR;
 867                 buf = list_entry(fh->vidq.stream.next,
 868                                 struct cx25821_buffer, vb.stream);
 869         } else {
 870                 /* read() capture */
 871                 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
 872                 if (NULL == buf)
 873                         return POLLERR;
 874         }
 875
 876         poll_wait(file, &buf->vb.done, wait);
 877         if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
 878                 if (buf->vb.state == VIDEOBUF_DONE) {
 879                         struct cx25821_dev *dev = fh->dev;
 880
 881                         if (dev && dev->channels[fh->channel_id]
 882                                         .use_cif_resolution) {
 883                                 u8 cam_id = *((char *)buf->vb.baddr + 3);
 884                                 memcpy((char *)buf->vb.baddr,
 885                                       (char *)buf->vb.baddr + (fh->width * 2),
 886                                       (fh->width * 2));
 887                                 *((char *)buf->vb.baddr + 3) = cam_id;
 888                         }
 889                 }
 890
 891                 return POLLIN | POLLRDNORM;
 892         }
 893
 894         return 0;
 895 }
 896
 897 static int video_release(struct file *file)
 898 {
 899         struct cx25821_fh *fh = file->private_data;
 900         struct cx25821_dev *dev = fh->dev;
 901
 902         /* stop the risc engine and fifo */
 903         cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
 904
 905         /* stop video capture */
 906         if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
 907                 videobuf_queue_cancel(&fh->vidq);
 908                 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
 909         }
 910
 911         if (fh->vidq.read_buf) {
 912                 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
 913                 kfree(fh->vidq.read_buf);
 914         }
 915
 916         videobuf_mmap_free(&fh->vidq);
 917
 918         v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
 919         file->private_data = NULL;
 920         kfree(fh);
 921
 922         return 0;
 923 }
 924
 925 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 926 {
 927         struct cx25821_fh *fh = priv;
 928         struct cx25821_dev *dev = fh->dev;
 929
 930         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
 931                 return -EINVAL;
 932
 933         if (unlikely(i != fh->type))
 934                 return -EINVAL;
 935
 936         if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh,
 937                                                 RESOURCE_VIDEO0))))
 938                 return -EBUSY;
 939
 940         return videobuf_streamon(get_queue(fh));
 941 }
 942
 943 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 944 {
 945         struct cx25821_fh *fh = priv;
 946         struct cx25821_dev *dev = fh->dev;
 947         int err, res;
 948
 949         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 950                 return -EINVAL;
 951         if (i != fh->type)
 952                 return -EINVAL;
 953
 954         res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
 955         err = videobuf_streamoff(get_queue(fh));
 956         if (err < 0)
 957                 return err;
 958         cx25821_res_free(dev, fh, res);
 959         return 0;
 960 }
 961
 962 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 963                                 struct v4l2_format *f)
 964 {
 965         struct cx25821_fh *fh = priv;
 966         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
 967         struct v4l2_mbus_framefmt mbus_fmt;
 968         int err;
 969         int pix_format = PIXEL_FRMT_422;
 970
 971         if (fh) {
 972                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
 973                                       fh->prio);
 974                 if (0 != err)
 975                         return err;
 976         }
 977
 978         dprintk(2, "%s()\n", __func__);
 979         err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
 980
 981         if (0 != err)
 982                 return err;
 983
 984         fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
 985         fh->vidq.field = f->fmt.pix.field;
 986
 987         /* check if width and height is valid based on set standard */
 988         if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
 989                 fh->width = f->fmt.pix.width;
 990
 991         if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
 992                 fh->height = f->fmt.pix.height;
 993
 994         if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
 995                 pix_format = PIXEL_FRMT_411;
 996         else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
 997                 pix_format = PIXEL_FRMT_422;
 998         else
 999                 return -EINVAL;
1000
1001         cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1002
1003         /* check if cif resolution */
1004         if (fh->width == 320 || fh->width == 352)
1005                 dev->channels[fh->channel_id].use_cif_resolution = 1;
1006         else
1007                 dev->channels[fh->channel_id].use_cif_resolution = 0;
1008
1009         dev->channels[fh->channel_id].cif_width = fh->width;
1010         medusa_set_resolution(dev, fh->width, SRAM_CH00);
1011
1012         dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1013                 fh->height, fh->vidq.field);
1014         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1015         cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1016
1017         return 0;
1018 }
1019
1020 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1021 {
1022         int ret_val = 0;
1023         struct cx25821_fh *fh = priv;
1024         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1025
1026         ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1027
1028         p->sequence = dev->channels[fh->channel_id].vidq.count;
1029
1030         return ret_val;
1031 }
1032
1033 static int vidioc_log_status(struct file *file, void *priv)
1034 {
1035         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1036         struct cx25821_fh *fh = priv;
1037         char name[32 + 2];
1038
1039         struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1040                                                                 .sram_channels;
1041         u32 tmp = 0;
1042
1043         snprintf(name, sizeof(name), "%s/2", dev->name);
1044         pr_info("%s/2: ============  START LOG STATUS  ============\n",
1045                 dev->name);
1046         cx25821_call_all(dev, core, log_status);
1047         tmp = cx_read(sram_ch->dma_ctl);
1048         pr_info("Video input 0 is %s\n",
1049                 (tmp & 0x11) ? "streaming" : "stopped");
1050         pr_info("%s/2: =============  END LOG STATUS  =============\n",
1051                 dev->name);
1052         return 0;
1053 }
1054
1055 static int vidioc_s_ctrl(struct file *file, void *priv,
1056                         struct v4l2_control *ctl)
1057 {
1058         struct cx25821_fh *fh = priv;
1059         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1060         int err;
1061
1062         if (fh) {
1063                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1064                                       fh->prio);
1065                 if (0 != err)
1066                         return err;
1067         }
1068
1069         return cx25821_set_control(dev, ctl, fh->channel_id);
1070 }
1071
1072 /* VIDEO IOCTLS */
1073 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1074                                  struct v4l2_format *f)
1075 {
1076         struct cx25821_fh *fh = priv;
1077
1078         f->fmt.pix.width = fh->width;
1079         f->fmt.pix.height = fh->height;
1080         f->fmt.pix.field = fh->vidq.field;
1081         f->fmt.pix.pixelformat = fh->fmt->fourcc;
1082         f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1083         f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1084
1085         return 0;
1086 }
1087
1088 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1089                                    struct v4l2_format *f)
1090 {
1091         struct cx25821_fmt *fmt;
1092         enum v4l2_field field;
1093         unsigned int maxw, maxh;
1094
1095         fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1096         if (NULL == fmt)
1097                 return -EINVAL;
1098
1099         field = f->fmt.pix.field;
1100         maxw = 720;
1101         maxh = 576;
1102
1103         if (V4L2_FIELD_ANY == field) {
1104                 if (f->fmt.pix.height > maxh / 2)
1105                         field = V4L2_FIELD_INTERLACED;
1106                 else
1107                         field = V4L2_FIELD_TOP;
1108         }
1109
1110         switch (field) {
1111         case V4L2_FIELD_TOP:
1112         case V4L2_FIELD_BOTTOM:
1113                 maxh = maxh / 2;
1114                 break;
1115         case V4L2_FIELD_INTERLACED:
1116                 break;
1117         default:
1118                 return -EINVAL;
1119         }
1120
1121         f->fmt.pix.field = field;
1122         if (f->fmt.pix.height < 32)
1123                 f->fmt.pix.height = 32;
1124         if (f->fmt.pix.height > maxh)
1125                 f->fmt.pix.height = maxh;
1126         if (f->fmt.pix.width < 48)
1127                 f->fmt.pix.width = 48;
1128         if (f->fmt.pix.width > maxw)
1129                 f->fmt.pix.width = maxw;
1130         f->fmt.pix.width &= ~0x03;
1131         f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1132         f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1133
1134         return 0;
1135 }
1136
1137 int cx25821_vidioc_querycap(struct file *file, void *priv,
1138                             struct v4l2_capability *cap)
1139 {
1140         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1141
1142         strcpy(cap->driver, "cx25821");
1143         strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1144         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1145         cap->version = CX25821_VERSION_CODE;
1146         cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
1147                 V4L2_CAP_STREAMING;
1148         if (UNSET != dev->tuner_type)
1149                 cap->capabilities |= V4L2_CAP_TUNER;
1150         return 0;
1151 }
1152
1153 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1154                             struct v4l2_fmtdesc *f)
1155 {
1156         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1157                 return -EINVAL;
1158
1159         strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1160         f->pixelformat = formats[f->index].fourcc;
1161
1162         return 0;
1163 }
1164
1165 int cx25821_vidioc_reqbufs(struct file *file, void *priv,
1166                            struct v4l2_requestbuffers *p)
1167 {
1168         struct cx25821_fh *fh = priv;
1169         return videobuf_reqbufs(get_queue(fh), p);
1170 }
1171
1172 int cx25821_vidioc_querybuf(struct file *file, void *priv,
1173                             struct v4l2_buffer *p)
1174 {
1175         struct cx25821_fh *fh = priv;
1176         return videobuf_querybuf(get_queue(fh), p);
1177 }
1178
1179 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1180 {
1181         struct cx25821_fh *fh = priv;
1182         return videobuf_qbuf(get_queue(fh), p);
1183 }
1184
1185 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1186 {
1187         struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1188         struct cx25821_fh *fh = f;
1189
1190         *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1191
1192         return 0;
1193 }
1194
1195 int cx25821_vidioc_s_priority(struct file *file, void *f,
1196                               enum v4l2_priority prio)
1197 {
1198         struct cx25821_fh *fh = f;
1199         struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1200
1201         return v4l2_prio_change(&dev->channels[fh->channel_id].prio, &fh->prio,
1202                         prio);
1203 }
1204
1205 #ifdef TUNER_FLAG
1206 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1207 {
1208         struct cx25821_fh *fh = priv;
1209         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1210         int err;
1211
1212         dprintk(1, "%s()\n", __func__);
1213
1214         if (fh) {
1215                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1216                                       fh->prio);
1217                 if (0 != err)
1218                         return err;
1219         }
1220
1221         if (dev->tvnorm == *tvnorms)
1222                 return 0;
1223
1224         mutex_lock(&dev->lock);
1225         cx25821_set_tvnorm(dev, *tvnorms);
1226         mutex_unlock(&dev->lock);
1227
1228         medusa_set_videostandard(dev);
1229
1230         return 0;
1231 }
1232 #endif
1233
1234 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1235 {
1236         static const char * const iname[] = {
1237                 [CX25821_VMUX_COMPOSITE] = "Composite",
1238                 [CX25821_VMUX_SVIDEO] = "S-Video",
1239                 [CX25821_VMUX_DEBUG] = "for debug only",
1240         };
1241         unsigned int n;
1242         dprintk(1, "%s()\n", __func__);
1243
1244         n = i->index;
1245         if (n >= 2)
1246                 return -EINVAL;
1247
1248         if (0 == INPUT(n)->type)
1249                 return -EINVAL;
1250
1251         i->type = V4L2_INPUT_TYPE_CAMERA;
1252         strcpy(i->name, iname[INPUT(n)->type]);
1253
1254         i->std = CX25821_NORMS;
1255         return 0;
1256 }
1257
1258 int cx25821_vidioc_enum_input(struct file *file, void *priv,
1259                               struct v4l2_input *i)
1260 {
1261         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1262         dprintk(1, "%s()\n", __func__);
1263         return cx25821_enum_input(dev, i);
1264 }
1265
1266 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1267 {
1268         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1269
1270         *i = dev->input;
1271         dprintk(1, "%s(): returns %d\n", __func__, *i);
1272         return 0;
1273 }
1274
1275 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1276 {
1277         struct cx25821_fh *fh = priv;
1278         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1279         int err;
1280
1281         dprintk(1, "%s(%d)\n", __func__, i);
1282
1283         if (fh) {
1284                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1285                                       fh->prio);
1286                 if (0 != err)
1287                         return err;
1288         }
1289
1290         if (i >= CX25821_NR_INPUT) {
1291                 dprintk(1, "%s(): -EINVAL\n", __func__);
1292                 return -EINVAL;
1293         }
1294
1295         mutex_lock(&dev->lock);
1296         cx25821_video_mux(dev, i);
1297         mutex_unlock(&dev->lock);
1298         return 0;
1299 }
1300
1301 #ifdef TUNER_FLAG
1302 int cx25821_vidioc_g_frequency(struct file *file, void *priv,
1303                                struct v4l2_frequency *f)
1304 {
1305         struct cx25821_fh *fh = priv;
1306         struct cx25821_dev *dev = fh->dev;
1307
1308         f->frequency = dev->freq;
1309
1310         cx25821_call_all(dev, tuner, g_frequency, f);
1311
1312         return 0;
1313 }
1314
1315 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1316 {
1317         mutex_lock(&dev->lock);
1318         dev->freq = f->frequency;
1319
1320         cx25821_call_all(dev, tuner, s_frequency, f);
1321
1322         /* When changing channels it is required to reset TVAUDIO */
1323         msleep(10);
1324
1325         mutex_unlock(&dev->lock);
1326
1327         return 0;
1328 }
1329
1330 int cx25821_vidioc_s_frequency(struct file *file, void *priv,
1331                                struct v4l2_frequency *f)
1332 {
1333         struct cx25821_fh *fh = priv;
1334         struct cx25821_dev *dev;
1335         int err;
1336
1337         if (fh) {
1338                 dev = fh->dev;
1339                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1340                                       fh->prio);
1341                 if (0 != err)
1342                         return err;
1343         } else {
1344                 pr_err("Invalid fh pointer!\n");
1345                 return -EINVAL;
1346         }
1347
1348         return cx25821_set_freq(dev, f);
1349 }
1350 #endif
1351
1352 #ifdef CONFIG_VIDEO_ADV_DEBUG
1353 int cx25821_vidioc_g_register(struct file *file, void *fh,
1354                       struct v4l2_dbg_register *reg)
1355 {
1356         struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1357
1358         if (!v4l2_chip_match_host(&reg->match))
1359                 return -EINVAL;
1360
1361         cx25821_call_all(dev, core, g_register, reg);
1362
1363         return 0;
1364 }
1365
1366 int cx25821_vidioc_s_register(struct file *file, void *fh,
1367                       struct v4l2_dbg_register *reg)
1368 {
1369         struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1370
1371         if (!v4l2_chip_match_host(&reg->match))
1372                 return -EINVAL;
1373
1374         cx25821_call_all(dev, core, s_register, reg);
1375
1376         return 0;
1377 }
1378
1379 #endif
1380
1381 #ifdef TUNER_FLAG
1382 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1383 {
1384         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1385
1386         if (unlikely(UNSET == dev->tuner_type))
1387                 return -EINVAL;
1388         if (0 != t->index)
1389                 return -EINVAL;
1390
1391         strcpy(t->name, "Television");
1392         t->type = V4L2_TUNER_ANALOG_TV;
1393         t->capability = V4L2_TUNER_CAP_NORM;
1394         t->rangehigh = 0xffffffffUL;
1395
1396         t->signal = 0xffff;     /* LOCKED */
1397         return 0;
1398 }
1399
1400 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1401 {
1402         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1403         struct cx25821_fh *fh = priv;
1404         int err;
1405
1406         if (fh) {
1407                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1408                                       fh->prio);
1409                 if (0 != err)
1410                         return err;
1411         }
1412
1413         dprintk(1, "%s()\n", __func__);
1414         if (UNSET == dev->tuner_type)
1415                 return -EINVAL;
1416         if (0 != t->index)
1417                 return -EINVAL;
1418
1419         return 0;
1420 }
1421
1422 #endif
1423 /*****************************************************************************/
1424 static const struct v4l2_queryctrl no_ctl = {
1425         .name = "42",
1426         .flags = V4L2_CTRL_FLAG_DISABLED,
1427 };
1428
1429 static struct v4l2_queryctrl cx25821_ctls[] = {
1430         /* --- video --- */
1431         {
1432                 .id = V4L2_CID_BRIGHTNESS,
1433                 .name = "Brightness",
1434                 .minimum = 0,
1435                 .maximum = 10000,
1436                 .step = 1,
1437                 .default_value = 6200,
1438                 .type = V4L2_CTRL_TYPE_INTEGER,
1439         }, {
1440                 .id = V4L2_CID_CONTRAST,
1441                 .name = "Contrast",
1442                 .minimum = 0,
1443                 .maximum = 10000,
1444                 .step = 1,
1445                 .default_value = 5000,
1446                 .type = V4L2_CTRL_TYPE_INTEGER,
1447         }, {
1448                 .id = V4L2_CID_SATURATION,
1449                 .name = "Saturation",
1450                 .minimum = 0,
1451                 .maximum = 10000,
1452                 .step = 1,
1453                 .default_value = 5000,
1454                 .type = V4L2_CTRL_TYPE_INTEGER,
1455         }, {
1456                 .id = V4L2_CID_HUE,
1457                 .name = "Hue",
1458                 .minimum = 0,
1459                 .maximum = 10000,
1460                 .step = 1,
1461                 .default_value = 5000,
1462                 .type = V4L2_CTRL_TYPE_INTEGER,
1463         }
1464 };
1465 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1466
1467 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1468 {
1469         int i;
1470
1471         if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1472                 return -EINVAL;
1473         for (i = 0; i < CX25821_CTLS; i++)
1474                 if (cx25821_ctls[i].id == qctrl->id)
1475                         break;
1476         if (i == CX25821_CTLS) {
1477                 *qctrl = no_ctl;
1478                 return 0;
1479         }
1480         *qctrl = cx25821_ctls[i];
1481         return 0;
1482 }
1483
1484 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1485                      struct v4l2_queryctrl *qctrl)
1486 {
1487         return cx25821_ctrl_query(qctrl);
1488 }
1489
1490 /* ------------------------------------------------------------------ */
1491 /* VIDEO CTRL IOCTLS                                                  */
1492
1493 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1494 {
1495         unsigned int i;
1496
1497         for (i = 0; i < CX25821_CTLS; i++)
1498                 if (cx25821_ctls[i].id == id)
1499                         return cx25821_ctls + i;
1500         return NULL;
1501 }
1502
1503 int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
1504                           struct v4l2_control *ctl)
1505 {
1506         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1507         struct cx25821_fh *fh = priv;
1508
1509         const struct v4l2_queryctrl *ctrl;
1510
1511         ctrl = ctrl_by_id(ctl->id);
1512
1513         if (NULL == ctrl)
1514                 return -EINVAL;
1515         switch (ctl->id) {
1516         case V4L2_CID_BRIGHTNESS:
1517                 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1518                 break;
1519         case V4L2_CID_HUE:
1520                 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1521                 break;
1522         case V4L2_CID_CONTRAST:
1523                 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1524                 break;
1525         case V4L2_CID_SATURATION:
1526                 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1527                 break;
1528         }
1529         return 0;
1530 }
1531
1532 int cx25821_set_control(struct cx25821_dev *dev,
1533                         struct v4l2_control *ctl, int chan_num)
1534 {
1535         int err;
1536         const struct v4l2_queryctrl *ctrl;
1537
1538         err = -EINVAL;
1539
1540         ctrl = ctrl_by_id(ctl->id);
1541
1542         if (NULL == ctrl)
1543                 return err;
1544
1545         switch (ctrl->type) {
1546         case V4L2_CTRL_TYPE_BOOLEAN:
1547         case V4L2_CTRL_TYPE_MENU:
1548         case V4L2_CTRL_TYPE_INTEGER:
1549                 if (ctl->value < ctrl->minimum)
1550                         ctl->value = ctrl->minimum;
1551                 if (ctl->value > ctrl->maximum)
1552                         ctl->value = ctrl->maximum;
1553                 break;
1554         default:
1555                 /* nothing */ ;
1556         }
1557
1558         switch (ctl->id) {
1559         case V4L2_CID_BRIGHTNESS:
1560                 dev->channels[chan_num].ctl_bright = ctl->value;
1561                 medusa_set_brightness(dev, ctl->value, chan_num);
1562                 break;
1563         case V4L2_CID_HUE:
1564                 dev->channels[chan_num].ctl_hue = ctl->value;
1565                 medusa_set_hue(dev, ctl->value, chan_num);
1566                 break;
1567         case V4L2_CID_CONTRAST:
1568                 dev->channels[chan_num].ctl_contrast = ctl->value;
1569                 medusa_set_contrast(dev, ctl->value, chan_num);
1570                 break;
1571         case V4L2_CID_SATURATION:
1572                 dev->channels[chan_num].ctl_saturation = ctl->value;
1573                 medusa_set_saturation(dev, ctl->value, chan_num);
1574                 break;
1575         }
1576
1577         err = 0;
1578
1579         return err;
1580 }
1581
1582 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1583 {
1584         struct v4l2_control ctrl;
1585         int i;
1586         for (i = 0; i < CX25821_CTLS; i++) {
1587                 ctrl.id = cx25821_ctls[i].id;
1588                 ctrl.value = cx25821_ctls[i].default_value;
1589
1590                 cx25821_set_control(dev, &ctrl, chan_num);
1591         }
1592 }
1593
1594 int cx25821_vidioc_cropcap(struct file *file, void *priv,
1595                            struct v4l2_cropcap *cropcap)
1596 {
1597         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1598
1599         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1600                 return -EINVAL;
1601         cropcap->bounds.top = 0;
1602         cropcap->bounds.left = 0;
1603         cropcap->bounds.width = 720;
1604         cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1605         cropcap->pixelaspect.numerator =
1606                 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1607         cropcap->pixelaspect.denominator =
1608                 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1609         cropcap->defrect = cropcap->bounds;
1610         return 0;
1611 }
1612
1613 int cx25821_vidioc_s_crop(struct file *file, void *priv, const struct v4l2_crop *crop)
1614 {
1615         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1616         struct cx25821_fh *fh = priv;
1617         int err;
1618
1619         if (fh) {
1620                 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1621                                       fh->prio);
1622                 if (0 != err)
1623                         return err;
1624         }
1625         /* cx25821_vidioc_s_crop not supported */
1626         return -EINVAL;
1627 }
1628
1629 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1630 {
1631         /* cx25821_vidioc_g_crop not supported */
1632         return -EINVAL;
1633 }
1634
1635 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1636 {
1637         /* medusa does not support video standard sensing of current input */
1638         *norm = CX25821_NORMS;
1639
1640         return 0;
1641 }
1642
1643 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1644 {
1645         if (tvnorm == V4L2_STD_PAL_BG) {
1646                 if (width == 352 || width == 720)
1647                         return 1;
1648                 else
1649                         return 0;
1650         }
1651
1652         if (tvnorm == V4L2_STD_NTSC_M) {
1653                 if (width == 320 || width == 352 || width == 720)
1654                         return 1;
1655                 else
1656                         return 0;
1657         }
1658         return 0;
1659 }
1660
1661 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1662 {
1663         if (tvnorm == V4L2_STD_PAL_BG) {
1664                 if (height == 576 || height == 288)
1665                         return 1;
1666                 else
1667                         return 0;
1668         }
1669
1670         if (tvnorm == V4L2_STD_NTSC_M) {
1671                 if (height == 480 || height == 240)
1672                         return 1;
1673                 else
1674                         return 0;
1675         }
1676
1677         return 0;
1678 }
1679
1680 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1681                                  unsigned long arg)
1682 {
1683         struct cx25821_fh *fh = file->private_data;
1684         struct cx25821_dev *dev = fh->dev;
1685         int command = 0;
1686         struct upstream_user_struct *data_from_user;
1687
1688         data_from_user = (struct upstream_user_struct *)arg;
1689
1690         if (!data_from_user) {
1691                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1692                 return 0;
1693         }
1694
1695         command = data_from_user->command;
1696
1697         if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1698                 return 0;
1699
1700         dev->input_filename = data_from_user->input_filename;
1701         dev->input_audiofilename = data_from_user->input_filename;
1702         dev->vid_stdname = data_from_user->vid_stdname;
1703         dev->pixel_format = data_from_user->pixel_format;
1704         dev->channel_select = data_from_user->channel_select;
1705         dev->command = data_from_user->command;
1706
1707         switch (command) {
1708         case UPSTREAM_START_VIDEO:
1709                 cx25821_start_upstream_video_ch1(dev, data_from_user);
1710                 break;
1711
1712         case UPSTREAM_STOP_VIDEO:
1713                 cx25821_stop_upstream_video_ch1(dev);
1714                 break;
1715         }
1716
1717         return 0;
1718 }
1719
1720 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1721                                   unsigned long arg)
1722 {
1723         struct cx25821_fh *fh = file->private_data;
1724         struct cx25821_dev *dev = fh->dev;
1725         int command = 0;
1726         struct upstream_user_struct *data_from_user;
1727
1728         data_from_user = (struct upstream_user_struct *)arg;
1729
1730         if (!data_from_user) {
1731                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1732                 return 0;
1733         }
1734
1735         command = data_from_user->command;
1736
1737         if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1738                 return 0;
1739
1740         dev->input_filename_ch2 = data_from_user->input_filename;
1741         dev->input_audiofilename = data_from_user->input_filename;
1742         dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1743         dev->pixel_format_ch2 = data_from_user->pixel_format;
1744         dev->channel_select_ch2 = data_from_user->channel_select;
1745         dev->command_ch2 = data_from_user->command;
1746
1747         switch (command) {
1748         case UPSTREAM_START_VIDEO:
1749                 cx25821_start_upstream_video_ch2(dev, data_from_user);
1750                 break;
1751
1752         case UPSTREAM_STOP_VIDEO:
1753                 cx25821_stop_upstream_video_ch2(dev);
1754                 break;
1755         }
1756
1757         return 0;
1758 }
1759
1760 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1761                                   unsigned long arg)
1762 {
1763         struct cx25821_fh *fh = file->private_data;
1764         struct cx25821_dev *dev = fh->dev;
1765         int command = 0;
1766         struct upstream_user_struct *data_from_user;
1767
1768         data_from_user = (struct upstream_user_struct *)arg;
1769
1770         if (!data_from_user) {
1771                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1772                 return 0;
1773         }
1774
1775         command = data_from_user->command;
1776
1777         if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO)
1778                 return 0;
1779
1780         dev->input_filename = data_from_user->input_filename;
1781         dev->input_audiofilename = data_from_user->input_filename;
1782         dev->vid_stdname = data_from_user->vid_stdname;
1783         dev->pixel_format = data_from_user->pixel_format;
1784         dev->channel_select = data_from_user->channel_select;
1785         dev->command = data_from_user->command;
1786
1787         switch (command) {
1788         case UPSTREAM_START_AUDIO:
1789                 cx25821_start_upstream_audio(dev, data_from_user);
1790                 break;
1791
1792         case UPSTREAM_STOP_AUDIO:
1793                 cx25821_stop_upstream_audio(dev);
1794                 break;
1795         }
1796
1797         return 0;
1798 }
1799
1800 static long video_ioctl_set(struct file *file, unsigned int cmd,
1801                            unsigned long arg)
1802 {
1803         struct cx25821_fh *fh = file->private_data;
1804         struct cx25821_dev *dev = fh->dev;
1805         struct downstream_user_struct *data_from_user;
1806         int command;
1807         int width = 720;
1808         int selected_channel = 0;
1809         int pix_format = 0;
1810         int i = 0;
1811         int cif_enable = 0;
1812         int cif_width = 0;
1813
1814         data_from_user = (struct downstream_user_struct *)arg;
1815
1816         if (!data_from_user) {
1817                 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1818                 return 0;
1819         }
1820
1821         command = data_from_user->command;
1822
1823         if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1824            && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1825            && command != REG_WRITE && command != MEDUSA_READ
1826            && command != MEDUSA_WRITE) {
1827                 return 0;
1828         }
1829
1830         switch (command) {
1831         case SET_VIDEO_STD:
1832                 if (!strcmp(data_from_user->vid_stdname, "PAL"))
1833                         dev->tvnorm = V4L2_STD_PAL_BG;
1834                 else
1835                         dev->tvnorm = V4L2_STD_NTSC_M;
1836                 medusa_set_videostandard(dev);
1837                 break;
1838
1839         case SET_PIXEL_FORMAT:
1840                 selected_channel = data_from_user->decoder_select;
1841                 pix_format = data_from_user->pixel_format;
1842
1843                 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1844                         selected_channel -= 4;
1845                         selected_channel = selected_channel % 8;
1846                 }
1847
1848                 if (selected_channel >= 0)
1849                         cx25821_set_pixel_format(dev, selected_channel,
1850                                                 pix_format);
1851
1852                 break;
1853
1854         case ENABLE_CIF_RESOLUTION:
1855                 selected_channel = data_from_user->decoder_select;
1856                 cif_enable = data_from_user->cif_resolution_enable;
1857                 cif_width = data_from_user->cif_width;
1858
1859                 if (cif_enable) {
1860                         if (dev->tvnorm & V4L2_STD_PAL_BG
1861                             || dev->tvnorm & V4L2_STD_PAL_DK) {
1862                                 width = 352;
1863                         } else {
1864                                 width = cif_width;
1865                                 if (cif_width != 320 && cif_width != 352)
1866                                         width = 320;
1867                         }
1868                 }
1869
1870                 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1871                         selected_channel -= 4;
1872                         selected_channel = selected_channel % 8;
1873                 }
1874
1875                 if (selected_channel <= 7 && selected_channel >= 0) {
1876                         dev->channels[selected_channel].use_cif_resolution =
1877                                 cif_enable;
1878                         dev->channels[selected_channel].cif_width = width;
1879                 } else {
1880                         for (i = 0; i < VID_CHANNEL_NUM; i++) {
1881                                 dev->channels[i].use_cif_resolution =
1882                                         cif_enable;
1883                                 dev->channels[i].cif_width = width;
1884                         }
1885                 }
1886
1887                 medusa_set_resolution(dev, width, selected_channel);
1888                 break;
1889         case REG_READ:
1890                 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1891                 break;
1892         case REG_WRITE:
1893                 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1894                 break;
1895         case MEDUSA_READ:
1896                 cx25821_i2c_read(&dev->i2c_bus[0],
1897                                          (u16) data_from_user->reg_address,
1898                                          &data_from_user->reg_data);
1899                 break;
1900         case MEDUSA_WRITE:
1901                 cx25821_i2c_write(&dev->i2c_bus[0],
1902                                   (u16) data_from_user->reg_address,
1903                                   data_from_user->reg_data);
1904                 break;
1905         }
1906
1907         return 0;
1908 }
1909
1910 static long cx25821_video_ioctl(struct file *file,
1911                                 unsigned int cmd, unsigned long arg)
1912 {
1913         int ret = 0;
1914
1915         struct cx25821_fh *fh = file->private_data;
1916
1917         /* check to see if it's the video upstream */
1918         if (fh->channel_id == SRAM_CH09) {
1919                 ret = video_ioctl_upstream9(file, cmd, arg);
1920                 return ret;
1921         } else if (fh->channel_id == SRAM_CH10) {
1922                 ret = video_ioctl_upstream10(file, cmd, arg);
1923                 return ret;
1924         } else if (fh->channel_id == SRAM_CH11) {
1925                 ret = video_ioctl_upstream11(file, cmd, arg);
1926                 ret = video_ioctl_set(file, cmd, arg);
1927                 return ret;
1928         }
1929
1930         return video_ioctl2(file, cmd, arg);
1931 }
1932
1933 /* exported stuff */
1934 static const struct v4l2_file_operations video_fops = {
1935         .owner = THIS_MODULE,
1936         .open = video_open,
1937         .release = video_release,
1938         .read = video_read,
1939         .poll = video_poll,
1940         .mmap = cx25821_video_mmap,
1941         .ioctl = cx25821_video_ioctl,
1942 };
1943
1944 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1945         .vidioc_querycap = cx25821_vidioc_querycap,
1946         .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1947         .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1948         .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1949         .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1950         .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1951         .vidioc_querybuf = cx25821_vidioc_querybuf,
1952         .vidioc_qbuf = cx25821_vidioc_qbuf,
1953         .vidioc_dqbuf = vidioc_dqbuf,
1954 #ifdef TUNER_FLAG
1955         .vidioc_s_std = cx25821_vidioc_s_std,
1956         .vidioc_querystd = cx25821_vidioc_querystd,
1957 #endif
1958         .vidioc_cropcap = cx25821_vidioc_cropcap,
1959         .vidioc_s_crop = cx25821_vidioc_s_crop,
1960         .vidioc_g_crop = cx25821_vidioc_g_crop,
1961         .vidioc_enum_input = cx25821_vidioc_enum_input,
1962         .vidioc_g_input = cx25821_vidioc_g_input,
1963         .vidioc_s_input = cx25821_vidioc_s_input,
1964         .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1965         .vidioc_s_ctrl = vidioc_s_ctrl,
1966         .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1967         .vidioc_streamon = vidioc_streamon,
1968         .vidioc_streamoff = vidioc_streamoff,
1969         .vidioc_log_status = vidioc_log_status,
1970         .vidioc_g_priority = cx25821_vidioc_g_priority,
1971         .vidioc_s_priority = cx25821_vidioc_s_priority,
1972 #ifdef TUNER_FLAG
1973         .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1974         .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1975         .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1976         .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1977 #endif
1978 #ifdef CONFIG_VIDEO_ADV_DEBUG
1979         .vidioc_g_register = cx25821_vidioc_g_register,
1980         .vidioc_s_register = cx25821_vidioc_s_register,
1981 #endif
1982 };
1983
1984 struct video_device cx25821_videoioctl_template = {
1985         .name = "cx25821-videoioctl",
1986         .fops = &video_fops,
1987         .ioctl_ops = &video_ioctl_ops,
1988         .tvnorms = CX25821_NORMS,
1989         .current_norm = V4L2_STD_NTSC_M,
1990 };