drivers/staging/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
 105         for (i = 0; i < ARRAY_SIZE(formats); i++)
 106                 if (formats[i].fourcc == fourcc)
 107                         return formats + i;
 108
 109         pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 110         return NULL;
 111 }
 112
 113 void cx25821_dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q)
 114 {
 115         struct cx25821_buffer *buf;
 116         struct list_head *item;
 117         dprintk(1, "%s()\n", __func__);
 118
 119         if (!list_empty(&q->active)) {
 120                 list_for_each(item, &q->active)
 121                     buf = list_entry(item, struct cx25821_buffer, vb.queue);
 122         }
 123
 124         if (!list_empty(&q->queued)) {
 125                 list_for_each(item, &q->queued)
 126                     buf = list_entry(item, struct cx25821_buffer, vb.queue);
 127         }
 128
 129 }
 130
 131 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
 132                           u32 count)
 133 {
 134         struct cx25821_buffer *buf;
 135         int bc;
 136
 137         for (bc = 0;; bc++) {
 138                 if (list_empty(&q->active)) {
 139                         dprintk(1, "bc=%d (=0: active empty)\n", bc);
 140                         break;
 141                 }
 142
 143                 buf =
 144                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 145
 146                 /* count comes from the hw and it is 16bit wide --
 147                  * this trick handles wrap-arounds correctly for
 148                  * up to 32767 buffers in flight... */
 149                 if ((s16) (count - buf->count) < 0) {
 150                         break;
 151                 }
 152
 153                 do_gettimeofday(&buf->vb.ts);
 154                 buf->vb.state = VIDEOBUF_DONE;
 155                 list_del(&buf->vb.queue);
 156                 wake_up(&buf->vb.done);
 157         }
 158
 159         if (list_empty(&q->active))
 160                 del_timer(&q->timeout);
 161         else
 162                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 163         if (bc != 1)
 164                 pr_err("%s: %d buffers handled (should be 1)\n",
 165                        __func__, bc);
 166 }
 167
 168 #ifdef TUNER_FLAG
 169 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
 170 {
 171         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 172                 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
 173
 174         dev->tvnorm = norm;
 175
 176         /* Tell the internal A/V decoder */
 177         cx25821_call_all(dev, core, s_std, norm);
 178
 179         return 0;
 180 }
 181 #endif
 182
 183 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
 184                                        struct pci_dev *pci,
 185                                        struct video_device *template,
 186                                        char *type)
 187 {
 188         struct video_device *vfd;
 189         dprintk(1, "%s()\n", __func__);
 190
 191         vfd = video_device_alloc();
 192         if (NULL == vfd)
 193                 return NULL;
 194         *vfd = *template;
 195         vfd->v4l2_dev = &dev->v4l2_dev;
 196         vfd->release = video_device_release;
 197         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
 198                  cx25821_boards[dev->board].name);
 199         video_set_drvdata(vfd, dev);
 200         return vfd;
 201 }
 202
 203 /*
 204 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
 205 {
 206     int i;
 207
 208     if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
 209         return -EINVAL;
 210     for (i = 0; i < CX25821_CTLS; i++)
 211         if (cx25821_ctls[i].v.id == qctrl->id)
 212             break;
 213     if (i == CX25821_CTLS) {
 214         *qctrl = no_ctl;
 215         return 0;
 216     }
 217     *qctrl = cx25821_ctls[i].v;
 218     return 0;
 219 }
 220 */
 221
 222 /* resource management */
 223 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
 224 {
 225         dprintk(1, "%s()\n", __func__);
 226         if (fh->resources & bit)
 227                 /* have it already allocated */
 228                 return 1;
 229
 230         /* is it free? */
 231         mutex_lock(&dev->lock);
 232        if (dev->channels[fh->channel_id].resources & bit) {
 233                 /* no, someone else uses it */
 234                 mutex_unlock(&dev->lock);
 235                 return 0;
 236         }
 237         /* it's free, grab it */
 238         fh->resources |= bit;
 239        dev->channels[fh->channel_id].resources |= bit;
 240         dprintk(1, "res: get %d\n", bit);
 241         mutex_unlock(&dev->lock);
 242         return 1;
 243 }
 244
 245 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
 246 {
 247         return fh->resources & bit;
 248 }
 249
 250 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
 251 {
 252        return fh->dev->channels[fh->channel_id].resources & bit;
 253 }
 254
 255 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
 256 {
 257         BUG_ON((fh->resources & bits) != bits);
 258         dprintk(1, "%s()\n", __func__);
 259
 260         mutex_lock(&dev->lock);
 261         fh->resources &= ~bits;
 262        dev->channels[fh->channel_id].resources &= ~bits;
 263         dprintk(1, "res: put %d\n", bits);
 264         mutex_unlock(&dev->lock);
 265 }
 266
 267 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
 268 {
 269         struct v4l2_routing route;
 270         memset(&route, 0, sizeof(route));
 271
 272         dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 273                 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
 274                 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
 275         dev->input = input;
 276
 277         route.input = INPUT(input)->vmux;
 278
 279         /* Tell the internal A/V decoder */
 280         cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
 281
 282         return 0;
 283 }
 284
 285 int cx25821_start_video_dma(struct cx25821_dev *dev,
 286                             struct cx25821_dmaqueue *q,
 287                             struct cx25821_buffer *buf,
 288                             struct sram_channel *channel)
 289 {
 290         int tmp = 0;
 291
 292         /* setup fifo + format */
 293         cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
 294
 295         /* reset counter */
 296         cx_write(channel->gpcnt_ctl, 3);
 297         q->count = 1;
 298
 299         /* enable irq */
 300         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
 301         cx_set(channel->int_msk, 0x11);
 302
 303         /* start dma */
 304         cx_write(channel->dma_ctl, 0x11);       /* FIFO and RISC enable */
 305
 306         /* make sure upstream setting if any is reversed */
 307         tmp = cx_read(VID_CH_MODE_SEL);
 308         cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
 309
 310         return 0;
 311 }
 312
 313 int cx25821_restart_video_queue(struct cx25821_dev *dev,
 314                                 struct cx25821_dmaqueue *q,
 315                                 struct sram_channel *channel)
 316 {
 317         struct cx25821_buffer *buf, *prev;
 318         struct list_head *item;
 319
 320         if (!list_empty(&q->active)) {
 321                 buf =
 322                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 323
 324                 cx25821_start_video_dma(dev, q, buf, channel);
 325
 326                 list_for_each(item, &q->active) {
 327                         buf = list_entry(item, struct cx25821_buffer, vb.queue);
 328                         buf->count = q->count++;
 329                 }
 330
 331                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 332                 return 0;
 333         }
 334
 335         prev = NULL;
 336         for (;;) {
 337                 if (list_empty(&q->queued))
 338                         return 0;
 339
 340                 buf =
 341                     list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
 342
 343                 if (NULL == prev) {
 344                         list_move_tail(&buf->vb.queue, &q->active);
 345                         cx25821_start_video_dma(dev, q, buf, channel);
 346                         buf->vb.state = VIDEOBUF_ACTIVE;
 347                         buf->count = q->count++;
 348                         mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 349                 } else if (prev->vb.width == buf->vb.width &&
 350                            prev->vb.height == buf->vb.height &&
 351                            prev->fmt == buf->fmt) {
 352                         list_move_tail(&buf->vb.queue, &q->active);
 353                         buf->vb.state = VIDEOBUF_ACTIVE;
 354                         buf->count = q->count++;
 355                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 356                         prev->risc.jmp[2] = cpu_to_le32(0);     /* Bits 63 - 32 */
 357                 } else {
 358                         return 0;
 359                 }
 360                 prev = buf;
 361         }
 362 }
 363
 364 void cx25821_vid_timeout(unsigned long data)
 365 {
 366         struct cx25821_data *timeout_data = (struct cx25821_data *)data;
 367         struct cx25821_dev *dev = timeout_data->dev;
 368         struct sram_channel *channel = timeout_data->channel;
 369        struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
 370         struct cx25821_buffer *buf;
 371         unsigned long flags;
 372
 373        /* cx25821_sram_channel_dump(dev, channel); */
 374         cx_clear(channel->dma_ctl, 0x11);
 375
 376         spin_lock_irqsave(&dev->slock, flags);
 377         while (!list_empty(&q->active)) {
 378                 buf =
 379                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 380                 list_del(&buf->vb.queue);
 381
 382                 buf->vb.state = VIDEOBUF_ERROR;
 383                 wake_up(&buf->vb.done);
 384         }
 385
 386         cx25821_restart_video_queue(dev, q, channel);
 387         spin_unlock_irqrestore(&dev->slock, flags);
 388 }
 389
 390 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
 391 {
 392         u32 count = 0;
 393         int handled = 0;
 394         u32 mask;
 395        struct sram_channel *channel = dev->channels[chan_num].sram_channels;
 396
 397         mask = cx_read(channel->int_msk);
 398         if (0 == (status & mask))
 399                 return handled;
 400
 401         cx_write(channel->int_stat, status);
 402
 403         /* risc op code error */
 404         if (status & (1 << 16)) {
 405                 pr_warn("%s, %s: video risc op code error\n",
 406                         dev->name, channel->name);
 407                 cx_clear(channel->dma_ctl, 0x11);
 408                 cx25821_sram_channel_dump(dev, channel);
 409         }
 410
 411         /* risc1 y */
 412         if (status & FLD_VID_DST_RISC1) {
 413                 spin_lock(&dev->slock);
 414                 count = cx_read(channel->gpcnt);
 415                cx25821_video_wakeup(dev,
 416                        &dev->channels[channel->i].vidq, count);
 417                 spin_unlock(&dev->slock);
 418                 handled++;
 419         }
 420
 421         /* risc2 y */
 422         if (status & 0x10) {
 423                 dprintk(2, "stopper video\n");
 424                 spin_lock(&dev->slock);
 425                cx25821_restart_video_queue(dev,
 426                                &dev->channels[channel->i].vidq,
 427                                        channel);
 428                 spin_unlock(&dev->slock);
 429                 handled++;
 430         }
 431         return handled;
 432 }
 433
 434 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
 435 {
 436         if (dev->ioctl_dev) {
 437                 if (video_is_registered(dev->ioctl_dev))
 438                         video_unregister_device(dev->ioctl_dev);
 439                 else
 440                         video_device_release(dev->ioctl_dev);
 441
 442                 dev->ioctl_dev = NULL;
 443         }
 444 }
 445
 446 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
 447 {
 448         cx_clear(PCI_INT_MSK, 1);
 449
 450        if (dev->channels[chan_num].video_dev) {
 451                if (video_is_registered(dev->channels[chan_num].video_dev))
 452                        video_unregister_device(
 453                                dev->channels[chan_num].video_dev);
 454                 else
 455                        video_device_release(
 456                                dev->channels[chan_num].video_dev);
 457
 458                dev->channels[chan_num].video_dev = NULL;
 459
 460                btcx_riscmem_free(dev->pci,
 461                        &dev->channels[chan_num].vidq.stopper);
 462
 463                 pr_warn("device %d released!\n", chan_num);
 464         }
 465
 466 }
 467
 468 int cx25821_video_register(struct cx25821_dev *dev)
 469 {
 470         int err;
 471        int i;
 472
 473        struct video_device cx25821_video_device = {
 474                .name = "cx25821-video",
 475                .fops = &video_fops,
 476                .minor = -1,
 477                .ioctl_ops = &video_ioctl_ops,
 478                .tvnorms = CX25821_NORMS,
 479                .current_norm = V4L2_STD_NTSC_M,
 480        };
 481
 482         spin_lock_init(&dev->slock);
 483
 484     for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
 485                cx25821_init_controls(dev, i);
 486
 487                cx25821_risc_stopper(dev->pci,
 488                                &dev->channels[i].vidq.stopper,
 489                                dev->channels[i].sram_channels->dma_ctl,
 490                                0x11, 0);
 491
 492                dev->channels[i].sram_channels = &cx25821_sram_channels[i];
 493                dev->channels[i].video_dev = NULL;
 494                dev->channels[i].resources = 0;
 495
 496                cx_write(dev->channels[i].sram_channels->int_stat,
 497                                0xffffffff);
 498
 499                INIT_LIST_HEAD(&dev->channels[i].vidq.active);
 500                INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
 501
 502                dev->channels[i].timeout_data.dev = dev;
 503                dev->channels[i].timeout_data.channel =
 504                                        &cx25821_sram_channels[i];
 505                dev->channels[i].vidq.timeout.function =
 506                                        cx25821_vid_timeout;
 507                dev->channels[i].vidq.timeout.data =
 508                        (unsigned long)&dev->channels[i].timeout_data;
 509                init_timer(&dev->channels[i].vidq.timeout);
 510
 511                /* register v4l devices */
 512                dev->channels[i].video_dev = cx25821_vdev_init(dev,
 513                        dev->pci, &cx25821_video_device, "video");
 514
 515                err = video_register_device(dev->channels[i].video_dev,
 516                                VFL_TYPE_GRABBER, video_nr[dev->nr]);
 517
 518                if (err < 0)
 519                        goto fail_unreg;
 520
 521         }
 522
 523     /* set PCI interrupt */
 524         cx_set(PCI_INT_MSK, 0xff);
 525
 526         /* initial device configuration */
 527         mutex_lock(&dev->lock);
 528 #ifdef TUNER_FLAG
 529        dev->tvnorm = cx25821_video_device.current_norm;
 530         cx25821_set_tvnorm(dev, dev->tvnorm);
 531 #endif
 532         mutex_unlock(&dev->lock);
 533
 534
 535     return 0;
 536
 537 fail_unreg:
 538        cx25821_video_unregister(dev, i);
 539         return err;
 540 }
 541
 542 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 543                  unsigned int *size)
 544 {
 545         struct cx25821_fh *fh = q->priv_data;
 546
 547         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 548
 549         if (0 == *count)
 550                 *count = 32;
 551
 552         if (*size * *count > vid_limit * 1024 * 1024)
 553                 *count = (vid_limit * 1024 * 1024) / *size;
 554
 555         return 0;
 556 }
 557
 558 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 559                    enum v4l2_field field)
 560 {
 561         struct cx25821_fh *fh = q->priv_data;
 562         struct cx25821_dev *dev = fh->dev;
 563         struct cx25821_buffer *buf =
 564             container_of(vb, struct cx25821_buffer, vb);
 565         int rc, init_buffer = 0;
 566         u32 line0_offset, line1_offset;
 567         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 568         int bpl_local = LINE_SIZE_D1;
 569        int channel_opened = fh->channel_id;
 570
 571         BUG_ON(NULL == fh->fmt);
 572         if (fh->width < 48 || fh->width > 720 ||
 573             fh->height < 32 || fh->height > 576)
 574                 return -EINVAL;
 575
 576         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 577
 578         if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 579                 return -EINVAL;
 580
 581         if (buf->fmt != fh->fmt ||
 582             buf->vb.width != fh->width ||
 583             buf->vb.height != fh->height || buf->vb.field != field) {
 584                 buf->fmt = fh->fmt;
 585                 buf->vb.width = fh->width;
 586                 buf->vb.height = fh->height;
 587                 buf->vb.field = field;
 588                 init_buffer = 1;
 589         }
 590
 591         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 592                 init_buffer = 1;
 593                 rc = videobuf_iolock(q, &buf->vb, NULL);
 594                 if (0 != rc) {
 595                         printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
 596                         goto fail;
 597                 }
 598         }
 599
 600         dprintk(1, "init_buffer=%d\n", init_buffer);
 601
 602         if (init_buffer) {
 603
 604                 channel_opened = dev->channel_opened;
 605                 channel_opened = (channel_opened < 0
 606                                   || channel_opened > 7) ? 7 : channel_opened;
 607
 608                if (dev->channels[channel_opened]
 609                        .pixel_formats == PIXEL_FRMT_411)
 610                         buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
 611                 else
 612                         buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
 613
 614                if (dev->channels[channel_opened]
 615                        .pixel_formats == PIXEL_FRMT_411) {
 616                         bpl_local = buf->bpl;
 617                 } else {
 618                        bpl_local = buf->bpl;   /* Default */
 619
 620                         if (channel_opened >= 0 && channel_opened <= 7) {
 621                                if (dev->channels[channel_opened]
 622                                                .use_cif_resolution) {
 623                                         if (dev->tvnorm & V4L2_STD_PAL_BG
 624                                             || dev->tvnorm & V4L2_STD_PAL_DK)
 625                                                 bpl_local = 352 << 1;
 626                                         else
 627                                                 bpl_local =
 628                                                  dev->channels[channel_opened].
 629                                                  cif_width <<
 630                                                  1;
 631                                 }
 632                         }
 633                 }
 634
 635                 switch (buf->vb.field) {
 636                 case V4L2_FIELD_TOP:
 637                         cx25821_risc_buffer(dev->pci, &buf->risc,
 638                                             dma->sglist, 0, UNSET,
 639                                             buf->bpl, 0, buf->vb.height);
 640                         break;
 641                 case V4L2_FIELD_BOTTOM:
 642                         cx25821_risc_buffer(dev->pci, &buf->risc,
 643                                             dma->sglist, UNSET, 0,
 644                                             buf->bpl, 0, buf->vb.height);
 645                         break;
 646                 case V4L2_FIELD_INTERLACED:
 647                         /* All other formats are top field first */
 648                         line0_offset = 0;
 649                         line1_offset = buf->bpl;
 650                         dprintk(1, "top field first\n");
 651
 652                         cx25821_risc_buffer(dev->pci, &buf->risc,
 653                                             dma->sglist, line0_offset,
 654                                             bpl_local, bpl_local, bpl_local,
 655                                             buf->vb.height >> 1);
 656                         break;
 657                 case V4L2_FIELD_SEQ_TB:
 658                         cx25821_risc_buffer(dev->pci, &buf->risc,
 659                                             dma->sglist,
 660                                             0, buf->bpl * (buf->vb.height >> 1),
 661                                             buf->bpl, 0, buf->vb.height >> 1);
 662                         break;
 663                 case V4L2_FIELD_SEQ_BT:
 664                         cx25821_risc_buffer(dev->pci, &buf->risc,
 665                                             dma->sglist,
 666                                             buf->bpl * (buf->vb.height >> 1), 0,
 667                                             buf->bpl, 0, buf->vb.height >> 1);
 668                         break;
 669                 default:
 670                         BUG();
 671                 }
 672         }
 673
 674         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 675                 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
 676                 fh->fmt->name, (unsigned long)buf->risc.dma);
 677
 678         buf->vb.state = VIDEOBUF_PREPARED;
 679
 680         return 0;
 681
 682       fail:
 683         cx25821_free_buffer(q, buf);
 684         return rc;
 685 }
 686
 687 void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
 688 {
 689         struct cx25821_buffer *buf =
 690             container_of(vb, struct cx25821_buffer, vb);
 691
 692         cx25821_free_buffer(q, buf);
 693 }
 694
 695 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
 696 {
 697         switch (fh->type) {
 698         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 699                 return &fh->vidq;
 700         default:
 701                 BUG();
 702                 return NULL;
 703         }
 704 }
 705
 706 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
 707 {
 708         switch (fh->type) {
 709         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 710                 return resource;
 711         default:
 712                 BUG();
 713                 return 0;
 714         }
 715 }
 716
 717 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
 718 {
 719         struct cx25821_fh *fh = file->private_data;
 720
 721         return videobuf_mmap_mapper(get_queue(fh), vma);
 722 }
 723
 724
 725 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 726 {
 727        struct cx25821_buffer *buf =
 728            container_of(vb, struct cx25821_buffer, vb);
 729        struct cx25821_buffer *prev;
 730        struct cx25821_fh *fh = vq->priv_data;
 731        struct cx25821_dev *dev = fh->dev;
 732        struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
 733
 734        /* add jump to stopper */
 735        buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 736        buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 737        buf->risc.jmp[2] = cpu_to_le32(0);      /* bits 63-32 */
 738
 739        dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
 740
 741        if (!list_empty(&q->queued)) {
 742                list_add_tail(&buf->vb.queue, &q->queued);
 743                buf->vb.state = VIDEOBUF_QUEUED;
 744                dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
 745                        buf->vb.i);
 746
 747        } else if (list_empty(&q->active)) {
 748                list_add_tail(&buf->vb.queue, &q->active);
 749                cx25821_start_video_dma(dev, q, buf,
 750                                        dev->channels[fh->channel_id].
 751                                        sram_channels);
 752                buf->vb.state = VIDEOBUF_ACTIVE;
 753                buf->count = q->count++;
 754                mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 755                dprintk(2,
 756                        "[%p/%d] buffer_queue - first active, buf cnt = %d, \
 757                        q->count = %d\n",
 758                        buf, buf->vb.i, buf->count, q->count);
 759        } else {
 760                prev =
 761                    list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
 762                if (prev->vb.width == buf->vb.width
 763                    && prev->vb.height == buf->vb.height
 764                    && prev->fmt == buf->fmt) {
 765                        list_add_tail(&buf->vb.queue, &q->active);
 766                        buf->vb.state = VIDEOBUF_ACTIVE;
 767                        buf->count = q->count++;
 768                        prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 769
 770                        /* 64 bit bits 63-32 */
 771                        prev->risc.jmp[2] = cpu_to_le32(0);
 772                        dprintk(2,
 773                                "[%p/%d] buffer_queue - append to active, \
 774                                buf->count=%d\n",
 775                                buf, buf->vb.i, buf->count);
 776
 777                } else {
 778                        list_add_tail(&buf->vb.queue, &q->queued);
 779                        buf->vb.state = VIDEOBUF_QUEUED;
 780                        dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
 781                                buf->vb.i);
 782                }
 783        }
 784
 785        if (list_empty(&q->active))
 786                dprintk(2, "active queue empty!\n");
 787 }
 788
 789 static struct videobuf_queue_ops cx25821_video_qops = {
 790        .buf_setup = cx25821_buffer_setup,
 791        .buf_prepare = cx25821_buffer_prepare,
 792        .buf_queue = buffer_queue,
 793        .buf_release = cx25821_buffer_release,
 794 };
 795
 796 static int video_open(struct file *file)
 797 {
 798        struct video_device *vdev = video_devdata(file);
 799        struct cx25821_dev *h, *dev = video_drvdata(file);
 800        struct cx25821_fh *fh;
 801        struct list_head *list;
 802        int minor = video_devdata(file)->minor;
 803        enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 804        u32 pix_format;
 805        int ch_id = 0;
 806        int i;
 807
 808        dprintk(1, "open dev=%s type=%s\n",
 809                        video_device_node_name(vdev),
 810                        v4l2_type_names[type]);
 811
 812        /* allocate + initialize per filehandle data */
 813        fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 814        if (NULL == fh)
 815                return -ENOMEM;
 816
 817         mutex_lock(&cx25821_devlist_mutex);
 818
 819        list_for_each(list, &cx25821_devlist)
 820        {
 821                h = list_entry(list, struct cx25821_dev, devlist);
 822
 823                for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
 824                        if (h->channels[i].video_dev &&
 825                            h->channels[i].video_dev->minor == minor) {
 826                                dev = h;
 827                                ch_id = i;
 828                                type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 829                        }
 830                }
 831        }
 832
 833        if (NULL == dev) {
 834                 mutex_unlock(&cx25821_devlist_mutex);
 835                 kfree(fh);
 836                 return -ENODEV;
 837        }
 838
 839        file->private_data = fh;
 840        fh->dev = dev;
 841        fh->type = type;
 842        fh->width = 720;
 843     fh->channel_id = ch_id;
 844
 845        if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
 846                fh->height = 576;
 847        else
 848                fh->height = 480;
 849
 850        dev->channel_opened = fh->channel_id;
 851        pix_format =
 852            (dev->channels[ch_id].pixel_formats ==
 853             PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
 854        fh->fmt = cx25821_format_by_fourcc(pix_format);
 855
 856        v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
 857
 858        videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
 859                               &dev->pci->dev, &dev->slock,
 860                               V4L2_BUF_TYPE_VIDEO_CAPTURE,
 861                               V4L2_FIELD_INTERLACED,
 862                               sizeof(struct cx25821_buffer), fh, NULL);
 863
 864        dprintk(1, "post videobuf_queue_init()\n");
 865         mutex_unlock(&cx25821_devlist_mutex);
 866
 867        return 0;
 868 }
 869
 870 static ssize_t video_read(struct file *file, char __user * data, size_t count,
 871                          loff_t *ppos)
 872 {
 873        struct cx25821_fh *fh = file->private_data;
 874
 875        switch (fh->type) {
 876        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 877                if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
 878                        return -EBUSY;
 879
 880                return videobuf_read_one(&fh->vidq, data, count, ppos,
 881                                         file->f_flags & O_NONBLOCK);
 882
 883        default:
 884                BUG();
 885                return 0;
 886        }
 887 }
 888
 889 static unsigned int video_poll(struct file *file,
 890                               struct poll_table_struct *wait)
 891 {
 892        struct cx25821_fh *fh = file->private_data;
 893        struct cx25821_buffer *buf;
 894
 895        if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
 896                /* streaming capture */
 897                if (list_empty(&fh->vidq.stream))
 898                        return POLLERR;
 899                buf = list_entry(fh->vidq.stream.next,
 900                                 struct cx25821_buffer, vb.stream);
 901        } else {
 902                /* read() capture */
 903                buf = (struct cx25821_buffer *)fh->vidq.read_buf;
 904                if (NULL == buf)
 905                        return POLLERR;
 906        }
 907
 908        poll_wait(file, &buf->vb.done, wait);
 909        if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
 910                if (buf->vb.state == VIDEOBUF_DONE) {
 911                        struct cx25821_dev *dev = fh->dev;
 912
 913                        if (dev && dev->channels[fh->channel_id]
 914                                                .use_cif_resolution) {
 915                                u8 cam_id = *((char *)buf->vb.baddr + 3);
 916                                memcpy((char *)buf->vb.baddr,
 917                                       (char *)buf->vb.baddr + (fh->width * 2),
 918                                       (fh->width * 2));
 919                                *((char *)buf->vb.baddr + 3) = cam_id;
 920                        }
 921                }
 922
 923                return POLLIN | POLLRDNORM;
 924        }
 925
 926        return 0;
 927 }
 928
 929 static int video_release(struct file *file)
 930 {
 931        struct cx25821_fh *fh = file->private_data;
 932        struct cx25821_dev *dev = fh->dev;
 933
 934        /* stop the risc engine and fifo */
 935        cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
 936
 937        /* stop video capture */
 938        if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
 939                videobuf_queue_cancel(&fh->vidq);
 940                cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
 941        }
 942
 943        if (fh->vidq.read_buf) {
 944                cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
 945                kfree(fh->vidq.read_buf);
 946        }
 947
 948        videobuf_mmap_free(&fh->vidq);
 949
 950        v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
 951        file->private_data = NULL;
 952        kfree(fh);
 953
 954        return 0;
 955 }
 956
 957 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
 958 {
 959        struct cx25821_fh *fh = priv;
 960        struct cx25821_dev *dev = fh->dev;
 961
 962        if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
 963                return -EINVAL;
 964
 965        if (unlikely(i != fh->type))
 966                return -EINVAL;
 967
 968        if (unlikely(!cx25821_res_get(dev, fh,
 969                        cx25821_get_resource(fh, RESOURCE_VIDEO0))))
 970                return -EBUSY;
 971
 972        return videobuf_streamon(get_queue(fh));
 973 }
 974
 975 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
 976 {
 977        struct cx25821_fh *fh = priv;
 978        struct cx25821_dev *dev = fh->dev;
 979        int err, res;
 980
 981        if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 982                return -EINVAL;
 983        if (i != fh->type)
 984                return -EINVAL;
 985
 986        res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
 987        err = videobuf_streamoff(get_queue(fh));
 988        if (err < 0)
 989                return err;
 990        cx25821_res_free(dev, fh, res);
 991        return 0;
 992 }
 993
 994 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 995                                struct v4l2_format *f)
 996 {
 997        struct cx25821_fh *fh = priv;
 998        struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
 999         struct v4l2_mbus_framefmt mbus_fmt;
1000        int err;
1001        int pix_format = PIXEL_FRMT_422;
1002
1003        if (fh) {
1004                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1005                                                .prio, fh->prio);
1006                if (0 != err)
1007                        return err;
1008        }
1009
1010        dprintk(2, "%s()\n", __func__);
1011        err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1012
1013        if (0 != err)
1014                return err;
1015
1016        fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1017        fh->vidq.field = f->fmt.pix.field;
1018
1019        /* check if width and height is valid based on set standard */
1020        if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1021                fh->width = f->fmt.pix.width;
1022
1023        if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1024                fh->height = f->fmt.pix.height;
1025
1026        if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1027                pix_format = PIXEL_FRMT_411;
1028        else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1029                pix_format = PIXEL_FRMT_422;
1030        else
1031                return -EINVAL;
1032
1033        cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1034
1035        /* check if cif resolution */
1036        if (fh->width == 320 || fh->width == 352)
1037                dev->channels[fh->channel_id].use_cif_resolution = 1;
1038        else
1039                dev->channels[fh->channel_id].use_cif_resolution = 0;
1040
1041        dev->channels[fh->channel_id].cif_width = fh->width;
1042        medusa_set_resolution(dev, fh->width, SRAM_CH00);
1043
1044         dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1045                 fh->height, fh->vidq.field);
1046         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1047         cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1048
1049        return 0;
1050 }
1051
1052 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1053 {
1054        int ret_val = 0;
1055        struct cx25821_fh *fh = priv;
1056        struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1057
1058        ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1059
1060     p->sequence = dev->channels[fh->channel_id].vidq.count;
1061
1062        return ret_val;
1063 }
1064
1065 static int vidioc_log_status(struct file *file, void *priv)
1066 {
1067        struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1068        struct cx25821_fh *fh = priv;
1069        char name[32 + 2];
1070
1071        struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1072                                                        .sram_channels;
1073        u32 tmp = 0;
1074
1075        snprintf(name, sizeof(name), "%s/2", dev->name);
1076         pr_info("%s/2: ============  START LOG STATUS  ============\n",
1077                 dev->name);
1078        cx25821_call_all(dev, core, log_status);
1079        tmp = cx_read(sram_ch->dma_ctl);
1080         pr_info("Video input 0 is %s\n",
1081                 (tmp & 0x11) ? "streaming" : "stopped");
1082         pr_info("%s/2: =============  END LOG STATUS  =============\n",
1083                 dev->name);
1084        return 0;
1085 }
1086
1087 static int vidioc_s_ctrl(struct file *file, void *priv,
1088                         struct v4l2_control *ctl)
1089 {
1090        struct cx25821_fh *fh = priv;
1091        struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1092        int err;
1093
1094        if (fh) {
1095                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1096                                                .prio, fh->prio);
1097                if (0 != err)
1098                        return err;
1099        }
1100
1101        return cx25821_set_control(dev, ctl, fh->channel_id);
1102 }
1103
1104 /* VIDEO IOCTLS                                                       */
1105 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1106 {
1107         struct cx25821_fh *fh = priv;
1108
1109         f->fmt.pix.width = fh->width;
1110         f->fmt.pix.height = fh->height;
1111         f->fmt.pix.field = fh->vidq.field;
1112         f->fmt.pix.pixelformat = fh->fmt->fourcc;
1113         f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1114         f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1115
1116         return 0;
1117 }
1118
1119 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1120 {
1121         struct cx25821_fmt *fmt;
1122         enum v4l2_field field;
1123         unsigned int maxw, maxh;
1124
1125         fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1126         if (NULL == fmt)
1127                 return -EINVAL;
1128
1129         field = f->fmt.pix.field;
1130         maxw = 720;
1131         maxh = 576;
1132
1133         if (V4L2_FIELD_ANY == field) {
1134                 field = (f->fmt.pix.height > maxh / 2)
1135                     ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1136         }
1137
1138         switch (field) {
1139         case V4L2_FIELD_TOP:
1140         case V4L2_FIELD_BOTTOM:
1141                 maxh = maxh / 2;
1142                 break;
1143         case V4L2_FIELD_INTERLACED:
1144                 break;
1145         default:
1146                 return -EINVAL;
1147         }
1148
1149         f->fmt.pix.field = field;
1150         if (f->fmt.pix.height < 32)
1151                 f->fmt.pix.height = 32;
1152         if (f->fmt.pix.height > maxh)
1153                 f->fmt.pix.height = maxh;
1154         if (f->fmt.pix.width < 48)
1155                 f->fmt.pix.width = 48;
1156         if (f->fmt.pix.width > maxw)
1157                 f->fmt.pix.width = maxw;
1158         f->fmt.pix.width &= ~0x03;
1159         f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1160         f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1161
1162         return 0;
1163 }
1164
1165 int cx25821_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
1166 {
1167         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1168
1169         strcpy(cap->driver, "cx25821");
1170         strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1171         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1172         cap->version = CX25821_VERSION_CODE;
1173         cap->capabilities =
1174             V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1175         if (UNSET != dev->tuner_type)
1176                 cap->capabilities |= V4L2_CAP_TUNER;
1177         return 0;
1178 }
1179
1180 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1181                             struct v4l2_fmtdesc *f)
1182 {
1183         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1184                 return -EINVAL;
1185
1186         strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1187         f->pixelformat = formats[f->index].fourcc;
1188
1189         return 0;
1190 }
1191
1192 int cx25821_vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p)
1193 {
1194         struct cx25821_fh *fh = priv;
1195         return videobuf_reqbufs(get_queue(fh), p);
1196 }
1197
1198 int cx25821_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
1199 {
1200         struct cx25821_fh *fh = priv;
1201         return videobuf_querybuf(get_queue(fh), p);
1202 }
1203
1204 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1205 {
1206         struct cx25821_fh *fh = priv;
1207         return videobuf_qbuf(get_queue(fh), p);
1208 }
1209
1210 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1211 {
1212         struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1213        struct cx25821_fh *fh = f;
1214
1215        *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1216
1217         return 0;
1218 }
1219
1220 int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
1221 {
1222         struct cx25821_fh *fh = f;
1223         struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1224
1225        return v4l2_prio_change(&dev->channels[fh->channel_id]
1226                                        .prio, &fh->prio, prio);
1227 }
1228
1229 #ifdef TUNER_FLAG
1230 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1231 {
1232         struct cx25821_fh *fh = priv;
1233         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1234         int err;
1235
1236         dprintk(1, "%s()\n", __func__);
1237
1238         if (fh) {
1239                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1240                                                .prio, fh->prio);
1241                 if (0 != err)
1242                         return err;
1243         }
1244
1245         if (dev->tvnorm == *tvnorms) {
1246                 return 0;
1247         }
1248
1249         mutex_lock(&dev->lock);
1250         cx25821_set_tvnorm(dev, *tvnorms);
1251         mutex_unlock(&dev->lock);
1252
1253         medusa_set_videostandard(dev);
1254
1255         return 0;
1256 }
1257 #endif
1258
1259 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1260 {
1261         static const char *iname[] = {
1262                 [CX25821_VMUX_COMPOSITE] = "Composite",
1263                 [CX25821_VMUX_SVIDEO] = "S-Video",
1264                 [CX25821_VMUX_DEBUG] = "for debug only",
1265         };
1266         unsigned int n;
1267         dprintk(1, "%s()\n", __func__);
1268
1269         n = i->index;
1270         if (n >= 2)
1271                 return -EINVAL;
1272
1273         if (0 == INPUT(n)->type)
1274                 return -EINVAL;
1275
1276         i->type = V4L2_INPUT_TYPE_CAMERA;
1277         strcpy(i->name, iname[INPUT(n)->type]);
1278
1279         i->std = CX25821_NORMS;
1280         return 0;
1281 }
1282
1283 int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1284 {
1285         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1286         dprintk(1, "%s()\n", __func__);
1287         return cx25821_enum_input(dev, i);
1288 }
1289
1290 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1291 {
1292         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1293
1294         *i = dev->input;
1295         dprintk(1, "%s(): returns %d\n", __func__, *i);
1296         return 0;
1297 }
1298
1299 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1300 {
1301         struct cx25821_fh *fh = priv;
1302         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1303         int err;
1304
1305         dprintk(1, "%s(%d)\n", __func__, i);
1306
1307         if (fh) {
1308                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1309                                                .prio, fh->prio);
1310                 if (0 != err)
1311                         return err;
1312         }
1313
1314         if (i > 2) {
1315                 dprintk(1, "%s(): -EINVAL\n", __func__);
1316                 return -EINVAL;
1317         }
1318
1319         mutex_lock(&dev->lock);
1320         cx25821_video_mux(dev, i);
1321         mutex_unlock(&dev->lock);
1322         return 0;
1323 }
1324
1325 #ifdef TUNER_FLAG
1326 int cx25821_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1327 {
1328         struct cx25821_fh *fh = priv;
1329         struct cx25821_dev *dev = fh->dev;
1330
1331         f->frequency = dev->freq;
1332
1333         cx25821_call_all(dev, tuner, g_frequency, f);
1334
1335         return 0;
1336 }
1337
1338 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1339 {
1340         mutex_lock(&dev->lock);
1341         dev->freq = f->frequency;
1342
1343         cx25821_call_all(dev, tuner, s_frequency, f);
1344
1345         /* When changing channels it is required to reset TVAUDIO */
1346         msleep(10);
1347
1348         mutex_unlock(&dev->lock);
1349
1350         return 0;
1351 }
1352
1353 int cx25821_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1354 {
1355         struct cx25821_fh *fh = priv;
1356         struct cx25821_dev *dev;
1357         int err;
1358
1359         if (fh) {
1360                dev = fh->dev;
1361                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1362                                                .prio, fh->prio);
1363                 if (0 != err)
1364                         return err;
1365        } else {
1366                pr_err("Invalid fh pointer!\n");
1367                return -EINVAL;
1368         }
1369
1370         return cx25821_set_freq(dev, f);
1371 }
1372 #endif
1373
1374 #ifdef CONFIG_VIDEO_ADV_DEBUG
1375 int cx25821_vidioc_g_register(struct file *file, void *fh,
1376                       struct v4l2_dbg_register *reg)
1377 {
1378         struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1379
1380         if (!v4l2_chip_match_host(&reg->match))
1381                 return -EINVAL;
1382
1383         cx25821_call_all(dev, core, g_register, reg);
1384
1385         return 0;
1386 }
1387
1388 int cx25821_vidioc_s_register(struct file *file, void *fh,
1389                       struct v4l2_dbg_register *reg)
1390 {
1391         struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1392
1393         if (!v4l2_chip_match_host(&reg->match))
1394                 return -EINVAL;
1395
1396         cx25821_call_all(dev, core, s_register, reg);
1397
1398         return 0;
1399 }
1400
1401 #endif
1402
1403 #ifdef TUNER_FLAG
1404 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1405 {
1406         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1407
1408         if (unlikely(UNSET == dev->tuner_type))
1409                 return -EINVAL;
1410         if (0 != t->index)
1411                 return -EINVAL;
1412
1413         strcpy(t->name, "Television");
1414         t->type = V4L2_TUNER_ANALOG_TV;
1415         t->capability = V4L2_TUNER_CAP_NORM;
1416         t->rangehigh = 0xffffffffUL;
1417
1418         t->signal = 0xffff;     /* LOCKED */
1419         return 0;
1420 }
1421
1422 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1423 {
1424         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1425         struct cx25821_fh *fh = priv;
1426         int err;
1427
1428         if (fh) {
1429                err = v4l2_prio_check(&dev->channels[fh->channel_id]
1430                                                .prio, fh->prio);
1431                 if (0 != err)
1432                         return err;
1433         }
1434
1435         dprintk(1, "%s()\n", __func__);
1436         if (UNSET == dev->tuner_type)
1437                 return -EINVAL;
1438         if (0 != t->index)
1439                 return -EINVAL;
1440
1441         return 0;
1442 }
1443
1444 #endif
1445 /*****************************************************************************/
1446 static const struct v4l2_queryctrl no_ctl = {
1447         .name = "42",
1448         .flags = V4L2_CTRL_FLAG_DISABLED,
1449 };
1450
1451 static struct v4l2_queryctrl cx25821_ctls[] = {
1452         /* --- video --- */
1453         {
1454          .id = V4L2_CID_BRIGHTNESS,
1455          .name = "Brightness",
1456          .minimum = 0,
1457          .maximum = 10000,
1458          .step = 1,
1459          .default_value = 6200,
1460          .type = V4L2_CTRL_TYPE_INTEGER,
1461          }, {
1462              .id = V4L2_CID_CONTRAST,
1463              .name = "Contrast",
1464              .minimum = 0,
1465              .maximum = 10000,
1466              .step = 1,
1467              .default_value = 5000,
1468              .type = V4L2_CTRL_TYPE_INTEGER,
1469              }, {
1470                  .id = V4L2_CID_SATURATION,
1471                  .name = "Saturation",
1472                  .minimum = 0,
1473                  .maximum = 10000,
1474                  .step = 1,
1475                  .default_value = 5000,
1476                  .type = V4L2_CTRL_TYPE_INTEGER,
1477                  }, {
1478                      .id = V4L2_CID_HUE,
1479                      .name = "Hue",
1480                      .minimum = 0,
1481                      .maximum = 10000,
1482                      .step = 1,
1483                      .default_value = 5000,
1484                      .type = V4L2_CTRL_TYPE_INTEGER,
1485                      }
1486 };
1487 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1488
1489 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1490 {
1491         int i;
1492
1493         if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1494                 return -EINVAL;
1495         for (i = 0; i < CX25821_CTLS; i++)
1496                 if (cx25821_ctls[i].id == qctrl->id)
1497                         break;
1498         if (i == CX25821_CTLS) {
1499                 *qctrl = no_ctl;
1500                 return 0;
1501         }
1502         *qctrl = cx25821_ctls[i];
1503         return 0;
1504 }
1505
1506 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1507                      struct v4l2_queryctrl *qctrl)
1508 {
1509         return cx25821_ctrl_query(qctrl);
1510 }
1511
1512 /* ------------------------------------------------------------------ */
1513 /* VIDEO CTRL IOCTLS                                                  */
1514
1515 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1516 {
1517         unsigned int i;
1518
1519         for (i = 0; i < CX25821_CTLS; i++)
1520                 if (cx25821_ctls[i].id == id)
1521                         return cx25821_ctls + i;
1522         return NULL;
1523 }
1524
1525 int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
1526 {
1527         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1528        struct cx25821_fh *fh = priv;
1529
1530         const struct v4l2_queryctrl *ctrl;
1531
1532         ctrl = ctrl_by_id(ctl->id);
1533
1534         if (NULL == ctrl)
1535                 return -EINVAL;
1536         switch (ctl->id) {
1537         case V4L2_CID_BRIGHTNESS:
1538                ctl->value = dev->channels[fh->channel_id].ctl_bright;
1539                 break;
1540         case V4L2_CID_HUE:
1541                ctl->value = dev->channels[fh->channel_id].ctl_hue;
1542                 break;
1543         case V4L2_CID_CONTRAST:
1544                ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1545                 break;
1546         case V4L2_CID_SATURATION:
1547                ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1548                 break;
1549         }
1550         return 0;
1551 }
1552
1553 int cx25821_set_control(struct cx25821_dev *dev,
1554                         struct v4l2_control *ctl, int chan_num)
1555 {
1556         int err;
1557         const struct v4l2_queryctrl *ctrl;
1558
1559         err = -EINVAL;
1560
1561         ctrl = ctrl_by_id(ctl->id);
1562
1563         if (NULL == ctrl)
1564                 return err;
1565
1566         switch (ctrl->type) {
1567         case V4L2_CTRL_TYPE_BOOLEAN:
1568         case V4L2_CTRL_TYPE_MENU:
1569         case V4L2_CTRL_TYPE_INTEGER:
1570                 if (ctl->value < ctrl->minimum)
1571                         ctl->value = ctrl->minimum;
1572                 if (ctl->value > ctrl->maximum)
1573                         ctl->value = ctrl->maximum;
1574                 break;
1575         default:
1576                 /* nothing */ ;
1577         }
1578
1579         switch (ctl->id) {
1580         case V4L2_CID_BRIGHTNESS:
1581                dev->channels[chan_num].ctl_bright = ctl->value;
1582                 medusa_set_brightness(dev, ctl->value, chan_num);
1583                 break;
1584         case V4L2_CID_HUE:
1585                dev->channels[chan_num].ctl_hue = ctl->value;
1586                 medusa_set_hue(dev, ctl->value, chan_num);
1587                 break;
1588         case V4L2_CID_CONTRAST:
1589                dev->channels[chan_num].ctl_contrast = ctl->value;
1590                 medusa_set_contrast(dev, ctl->value, chan_num);
1591                 break;
1592         case V4L2_CID_SATURATION:
1593                dev->channels[chan_num].ctl_saturation = ctl->value;
1594                 medusa_set_saturation(dev, ctl->value, chan_num);
1595                 break;
1596         }
1597
1598         err = 0;
1599
1600         return err;
1601 }
1602
1603 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1604 {
1605         struct v4l2_control ctrl;
1606         int i;
1607         for (i = 0; i < CX25821_CTLS; i++) {
1608                 ctrl.id = cx25821_ctls[i].id;
1609                 ctrl.value = cx25821_ctls[i].default_value;
1610
1611                 cx25821_set_control(dev, &ctrl, chan_num);
1612         }
1613 }
1614
1615 int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
1616 {
1617         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1618
1619         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1620                 return -EINVAL;
1621         cropcap->bounds.top = cropcap->bounds.left = 0;
1622         cropcap->bounds.width = 720;
1623         cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1624         cropcap->pixelaspect.numerator =
1625             dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1626         cropcap->pixelaspect.denominator =
1627             dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1628         cropcap->defrect = cropcap->bounds;
1629         return 0;
1630 }
1631
1632 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1633 {
1634         struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1635         struct cx25821_fh *fh = priv;
1636         int err;
1637
1638         if (fh) {
1639                err = v4l2_prio_check(&dev->channels[fh->channel_id].
1640                                                prio, fh->prio);
1641                 if (0 != err)
1642                         return err;
1643         }
1644        /* cx25821_vidioc_s_crop not supported */
1645         return -EINVAL;
1646 }
1647
1648 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1649 {
1650        /* cx25821_vidioc_g_crop not supported */
1651         return -EINVAL;
1652 }
1653
1654 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1655 {
1656        /* medusa does not support video standard sensing of current input */
1657         *norm = CX25821_NORMS;
1658
1659         return 0;
1660 }
1661
1662 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1663 {
1664         if (tvnorm == V4L2_STD_PAL_BG) {
1665                 if (width == 352 || width == 720)
1666                         return 1;
1667                 else
1668                         return 0;
1669         }
1670
1671         if (tvnorm == V4L2_STD_NTSC_M) {
1672                 if (width == 320 || width == 352 || width == 720)
1673                         return 1;
1674                 else
1675                         return 0;
1676         }
1677         return 0;
1678 }
1679
1680 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1681 {
1682         if (tvnorm == V4L2_STD_PAL_BG) {
1683                 if (height == 576 || height == 288)
1684                         return 1;
1685                 else
1686                         return 0;
1687         }
1688
1689         if (tvnorm == V4L2_STD_NTSC_M) {
1690                 if (height == 480 || height == 240)
1691                         return 1;
1692                 else
1693                         return 0;
1694         }
1695
1696         return 0;
1697 }
1698
1699 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1700                                  unsigned long arg)
1701 {
1702        struct cx25821_fh *fh = file->private_data;
1703        struct cx25821_dev *dev = fh->dev;
1704        int command = 0;
1705        struct upstream_user_struct *data_from_user;
1706
1707        data_from_user = (struct upstream_user_struct *)arg;
1708
1709         if (!data_from_user) {
1710                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1711                 return 0;
1712         }
1713
1714        command = data_from_user->command;
1715
1716        if (command != UPSTREAM_START_VIDEO &&
1717                command != UPSTREAM_STOP_VIDEO)
1718                return 0;
1719
1720        dev->input_filename = data_from_user->input_filename;
1721        dev->input_audiofilename = data_from_user->input_filename;
1722        dev->vid_stdname = data_from_user->vid_stdname;
1723        dev->pixel_format = data_from_user->pixel_format;
1724        dev->channel_select = data_from_user->channel_select;
1725        dev->command = data_from_user->command;
1726
1727        switch (command) {
1728        case UPSTREAM_START_VIDEO:
1729                cx25821_start_upstream_video_ch1(dev, data_from_user);
1730                break;
1731
1732        case UPSTREAM_STOP_VIDEO:
1733                cx25821_stop_upstream_video_ch1(dev);
1734                break;
1735        }
1736
1737        return 0;
1738 }
1739
1740 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1741                                   unsigned long arg)
1742 {
1743        struct cx25821_fh *fh = file->private_data;
1744        struct cx25821_dev *dev = fh->dev;
1745        int command = 0;
1746        struct upstream_user_struct *data_from_user;
1747
1748        data_from_user = (struct upstream_user_struct *)arg;
1749
1750         if (!data_from_user) {
1751                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1752                 return 0;
1753         }
1754
1755        command = data_from_user->command;
1756
1757        if (command != UPSTREAM_START_VIDEO &&
1758                command != UPSTREAM_STOP_VIDEO)
1759                return 0;
1760
1761        dev->input_filename_ch2 = data_from_user->input_filename;
1762        dev->input_audiofilename = data_from_user->input_filename;
1763        dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1764        dev->pixel_format_ch2 = data_from_user->pixel_format;
1765        dev->channel_select_ch2 = data_from_user->channel_select;
1766        dev->command_ch2 = data_from_user->command;
1767
1768        switch (command) {
1769        case UPSTREAM_START_VIDEO:
1770                cx25821_start_upstream_video_ch2(dev, data_from_user);
1771                break;
1772
1773        case UPSTREAM_STOP_VIDEO:
1774                cx25821_stop_upstream_video_ch2(dev);
1775                break;
1776        }
1777
1778        return 0;
1779 }
1780
1781 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1782                                   unsigned long arg)
1783 {
1784        struct cx25821_fh *fh = file->private_data;
1785        struct cx25821_dev *dev = fh->dev;
1786        int command = 0;
1787        struct upstream_user_struct *data_from_user;
1788
1789        data_from_user = (struct upstream_user_struct *)arg;
1790
1791         if (!data_from_user) {
1792                 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1793                 return 0;
1794         }
1795
1796        command = data_from_user->command;
1797
1798        if (command != UPSTREAM_START_AUDIO &&
1799                command != UPSTREAM_STOP_AUDIO)
1800                return 0;
1801
1802        dev->input_filename = data_from_user->input_filename;
1803        dev->input_audiofilename = data_from_user->input_filename;
1804        dev->vid_stdname = data_from_user->vid_stdname;
1805        dev->pixel_format = data_from_user->pixel_format;
1806        dev->channel_select = data_from_user->channel_select;
1807        dev->command = data_from_user->command;
1808
1809        switch (command) {
1810        case UPSTREAM_START_AUDIO:
1811                cx25821_start_upstream_audio(dev, data_from_user);
1812                break;
1813
1814        case UPSTREAM_STOP_AUDIO:
1815                cx25821_stop_upstream_audio(dev);
1816                break;
1817        }
1818
1819        return 0;
1820 }
1821
1822 static long video_ioctl_set(struct file *file, unsigned int cmd,
1823                            unsigned long arg)
1824 {
1825        struct cx25821_fh *fh = file->private_data;
1826        struct cx25821_dev *dev = fh->dev;
1827        struct downstream_user_struct *data_from_user;
1828        int command;
1829        int width = 720;
1830        int selected_channel = 0, pix_format = 0, i = 0;
1831        int cif_enable = 0, cif_width = 0;
1832        u32 value = 0;
1833
1834        data_from_user = (struct downstream_user_struct *)arg;
1835
1836         if (!data_from_user) {
1837                 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1838                 return 0;
1839         }
1840
1841        command = data_from_user->command;
1842
1843        if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1844            && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1845            && command != REG_WRITE && command != MEDUSA_READ
1846            && command != MEDUSA_WRITE) {
1847                return 0;
1848        }
1849
1850        switch (command) {
1851        case SET_VIDEO_STD:
1852                dev->tvnorm =
1853                    !strcmp(data_from_user->vid_stdname,
1854                            "PAL") ? V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1855                medusa_set_videostandard(dev);
1856                break;
1857
1858        case SET_PIXEL_FORMAT:
1859                selected_channel = data_from_user->decoder_select;
1860                pix_format = data_from_user->pixel_format;
1861
1862                if (!(selected_channel <= 7 && selected_channel >= 0)) {
1863                        selected_channel -= 4;
1864                        selected_channel = selected_channel % 8;
1865                }
1866
1867                if (selected_channel >= 0)
1868                        cx25821_set_pixel_format(dev, selected_channel,
1869                                                 pix_format);
1870
1871                break;
1872
1873        case ENABLE_CIF_RESOLUTION:
1874                selected_channel = data_from_user->decoder_select;
1875                cif_enable = data_from_user->cif_resolution_enable;
1876                cif_width = data_from_user->cif_width;
1877
1878                if (cif_enable) {
1879                        if (dev->tvnorm & V4L2_STD_PAL_BG
1880                            || dev->tvnorm & V4L2_STD_PAL_DK)
1881                                width = 352;
1882                        else
1883                                width = (cif_width == 320
1884                                         || cif_width == 352) ? cif_width : 320;
1885                }
1886
1887                if (!(selected_channel <= 7 && selected_channel >= 0)) {
1888                        selected_channel -= 4;
1889                        selected_channel = selected_channel % 8;
1890                }
1891
1892                if (selected_channel <= 7 && selected_channel >= 0) {
1893                        dev->channels[selected_channel].
1894                                use_cif_resolution = cif_enable;
1895                        dev->channels[selected_channel].cif_width = width;
1896                } else {
1897                        for (i = 0; i < VID_CHANNEL_NUM; i++) {
1898                                dev->channels[i].use_cif_resolution =
1899                                        cif_enable;
1900                                dev->channels[i].cif_width = width;
1901                        }
1902                }
1903
1904                medusa_set_resolution(dev, width, selected_channel);
1905                break;
1906        case REG_READ:
1907                data_from_user->reg_data = cx_read(data_from_user->reg_address);
1908                break;
1909        case REG_WRITE:
1910                cx_write(data_from_user->reg_address, data_from_user->reg_data);
1911                break;
1912        case MEDUSA_READ:
1913                value =
1914                    cx25821_i2c_read(&dev->i2c_bus[0],
1915                                     (u16) data_from_user->reg_address,
1916                                     &data_from_user->reg_data);
1917                break;
1918        case MEDUSA_WRITE:
1919                cx25821_i2c_write(&dev->i2c_bus[0],
1920                                  (u16) data_from_user->reg_address,
1921                                  data_from_user->reg_data);
1922                break;
1923        }
1924
1925        return 0;
1926 }
1927
1928 static long cx25821_video_ioctl(struct file *file,
1929                                unsigned int cmd, unsigned long arg)
1930 {
1931        int  ret = 0;
1932
1933        struct cx25821_fh  *fh  = file->private_data;
1934
1935        /* check to see if it's the video upstream */
1936        if (fh->channel_id == SRAM_CH09) {
1937                ret = video_ioctl_upstream9(file, cmd, arg);
1938                return ret;
1939        } else if (fh->channel_id == SRAM_CH10) {
1940                ret = video_ioctl_upstream10(file, cmd, arg);
1941                return ret;
1942        } else if (fh->channel_id == SRAM_CH11) {
1943                ret = video_ioctl_upstream11(file, cmd, arg);
1944                ret = video_ioctl_set(file, cmd, arg);
1945                return ret;
1946        }
1947
1948     return video_ioctl2(file, cmd, arg);
1949 }
1950
1951 /* exported stuff */
1952 static const struct v4l2_file_operations video_fops = {
1953        .owner = THIS_MODULE,
1954        .open = video_open,
1955        .release = video_release,
1956        .read = video_read,
1957        .poll = video_poll,
1958        .mmap = cx25821_video_mmap,
1959        .ioctl = cx25821_video_ioctl,
1960 };
1961
1962 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1963        .vidioc_querycap = cx25821_vidioc_querycap,
1964        .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1965        .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1966        .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1967        .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1968        .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1969        .vidioc_querybuf = cx25821_vidioc_querybuf,
1970        .vidioc_qbuf = cx25821_vidioc_qbuf,
1971        .vidioc_dqbuf = vidioc_dqbuf,
1972 #ifdef TUNER_FLAG
1973        .vidioc_s_std = cx25821_vidioc_s_std,
1974        .vidioc_querystd = cx25821_vidioc_querystd,
1975 #endif
1976        .vidioc_cropcap = cx25821_vidioc_cropcap,
1977        .vidioc_s_crop = cx25821_vidioc_s_crop,
1978        .vidioc_g_crop = cx25821_vidioc_g_crop,
1979        .vidioc_enum_input = cx25821_vidioc_enum_input,
1980        .vidioc_g_input = cx25821_vidioc_g_input,
1981        .vidioc_s_input = cx25821_vidioc_s_input,
1982        .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1983        .vidioc_s_ctrl = vidioc_s_ctrl,
1984        .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1985        .vidioc_streamon = vidioc_streamon,
1986        .vidioc_streamoff = vidioc_streamoff,
1987        .vidioc_log_status = vidioc_log_status,
1988        .vidioc_g_priority = cx25821_vidioc_g_priority,
1989        .vidioc_s_priority = cx25821_vidioc_s_priority,
1990 #ifdef TUNER_FLAG
1991        .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1992        .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1993        .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1994        .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1995 #endif
1996 #ifdef CONFIG_VIDEO_ADV_DEBUG
1997        .vidioc_g_register = cx25821_vidioc_g_register,
1998        .vidioc_s_register = cx25821_vidioc_s_register,
1999 #endif
2000 };
2001
2002 struct video_device cx25821_videoioctl_template = {
2003                .name = "cx25821-videoioctl",
2004                .fops = &video_fops,
2005                .ioctl_ops = &video_ioctl_ops,
2006                .tvnorms = CX25821_NORMS,
2007                .current_norm = V4L2_STD_NTSC_M,
2008 };