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 #include <linux/smp_lock.h>
  31
  32 MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
  33 MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
  34 MODULE_LICENSE("GPL");
  35
  36 static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
  37 static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
  38
  39 module_param_array(video_nr, int, NULL, 0444);
  40 module_param_array(radio_nr, int, NULL, 0444);
  41
  42 MODULE_PARM_DESC(video_nr, "video device numbers");
  43 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  44
  45 static unsigned int video_debug = VIDEO_DEBUG;
  46 module_param(video_debug, int, 0644);
  47 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  48
  49 static unsigned int irq_debug;
  50 module_param(irq_debug, int, 0644);
  51 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  52
  53 unsigned int vid_limit = 16;
  54 module_param(vid_limit, int, 0644);
  55 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  56
  57 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
  58
  59 static const struct v4l2_file_operations video_fops;
  60 static const struct v4l2_ioctl_ops video_ioctl_ops;
  61
  62 #define FORMAT_FLAGS_PACKED       0x01
  63
  64 struct cx25821_fmt formats[] = {
  65         {
  66                 .name = "8 bpp, gray",
  67                 .fourcc = V4L2_PIX_FMT_GREY,
  68                 .depth = 8,
  69                 .flags = FORMAT_FLAGS_PACKED,
  70          }, {
  71                 .name = "4:1:1, packed, Y41P",
  72                 .fourcc = V4L2_PIX_FMT_Y41P,
  73                 .depth = 12,
  74                 .flags = FORMAT_FLAGS_PACKED,
  75         }, {
  76                 .name = "4:2:2, packed, YUYV",
  77                 .fourcc = V4L2_PIX_FMT_YUYV,
  78                 .depth = 16,
  79                 .flags = FORMAT_FLAGS_PACKED,
  80         }, {
  81                 .name = "4:2:2, packed, UYVY",
  82                 .fourcc = V4L2_PIX_FMT_UYVY,
  83                 .depth = 16,
  84                 .flags = FORMAT_FLAGS_PACKED,
  85         }, {
  86                 .name = "4:2:0, YUV",
  87                 .fourcc = V4L2_PIX_FMT_YUV420,
  88                 .depth = 12,
  89                 .flags = FORMAT_FLAGS_PACKED,
  90         },
  91 };
  92
  93 int cx25821_get_format_size(void)
  94 {
  95         return ARRAY_SIZE(formats);
  96 }
  97
  98 struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
  99 {
 100         unsigned int i;
 101
 102         if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) {
 103                 return formats + 1;
 104         }
 105
 106         for (i = 0; i < ARRAY_SIZE(formats); i++)
 107                 if (formats[i].fourcc == fourcc)
 108                         return formats + i;
 109
 110         pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 111         return NULL;
 112 }
 113
 114 void cx25821_dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q)
 115 {
 116         struct cx25821_buffer *buf;
 117         struct list_head *item;
 118         dprintk(1, "%s()\n", __func__);
 119
 120         if (!list_empty(&q->active)) {
 121                 list_for_each(item, &q->active)
 122                     buf = list_entry(item, struct cx25821_buffer, vb.queue);
 123         }
 124
 125         if (!list_empty(&q->queued)) {
 126                 list_for_each(item, &q->queued)
 127                     buf = list_entry(item, struct cx25821_buffer, vb.queue);
 128         }
 129
 130 }
 131
 132 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
 133                           u32 count)
 134 {
 135         struct cx25821_buffer *buf;
 136         int bc;
 137
 138         for (bc = 0;; bc++) {
 139                 if (list_empty(&q->active)) {
 140                         dprintk(1, "bc=%d (=0: active empty)\n", bc);
 141                         break;
 142                 }
 143
 144                 buf =
 145                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 146
 147                 /* count comes from the hw and it is 16bit wide --
 148                  * this trick handles wrap-arounds correctly for
 149                  * up to 32767 buffers in flight... */
 150                 if ((s16) (count - buf->count) < 0) {
 151                         break;
 152                 }
 153
 154                 do_gettimeofday(&buf->vb.ts);
 155                 buf->vb.state = VIDEOBUF_DONE;
 156                 list_del(&buf->vb.queue);
 157                 wake_up(&buf->vb.done);
 158         }
 159
 160         if (list_empty(&q->active))
 161                 del_timer(&q->timeout);
 162         else
 163                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 164         if (bc != 1)
 165                 pr_err("%s: %d buffers handled (should be 1)\n",
 166                        __func__, bc);
 167 }
 168
 169 #ifdef TUNER_FLAG
 170 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
 171 {
 172         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 173                 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
 174
 175         dev->tvnorm = norm;
 176
 177         /* Tell the internal A/V decoder */
 178         cx25821_call_all(dev, core, s_std, norm);
 179
 180         return 0;
 181 }
 182 #endif
 183
 184 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
 185                                        struct pci_dev *pci,
 186                                        struct video_device *template,
 187                                        char *type)
 188 {
 189         struct video_device *vfd;
 190         dprintk(1, "%s()\n", __func__);
 191
 192         vfd = video_device_alloc();
 193         if (NULL == vfd)
 194                 return NULL;
 195         *vfd = *template;
 196         vfd->v4l2_dev = &dev->v4l2_dev;
 197         vfd->release = video_device_release;
 198         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
 199                  cx25821_boards[dev->board].name);
 200         video_set_drvdata(vfd, dev);
 201         return vfd;
 202 }
 203
 204 /*
 205 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
 206 {
 207     int i;
 208
 209     if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
 210         return -EINVAL;
 211     for (i = 0; i < CX25821_CTLS; i++)
 212         if (cx25821_ctls[i].v.id == qctrl->id)
 213             break;
 214     if (i == CX25821_CTLS) {
 215         *qctrl = no_ctl;
 216         return 0;
 217     }
 218     *qctrl = cx25821_ctls[i].v;
 219     return 0;
 220 }
 221 */
 222
 223 /* resource management */
 224 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
 225 {
 226         dprintk(1, "%s()\n", __func__);
 227         if (fh->resources & bit)
 228                 /* have it already allocated */
 229                 return 1;
 230
 231         /* is it free? */
 232         mutex_lock(&dev->lock);
 233        if (dev->channels[fh->channel_id].resources & bit) {
 234                 /* no, someone else uses it */
 235                 mutex_unlock(&dev->lock);
 236                 return 0;
 237         }
 238         /* it's free, grab it */
 239         fh->resources |= bit;
 240        dev->channels[fh->channel_id].resources |= bit;
 241         dprintk(1, "res: get %d\n", bit);
 242         mutex_unlock(&dev->lock);
 243         return 1;
 244 }
 245
 246 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
 247 {
 248         return fh->resources & bit;
 249 }
 250
 251 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
 252 {
 253        return fh->dev->channels[fh->channel_id].resources & bit;
 254 }
 255
 256 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
 257 {
 258         BUG_ON((fh->resources & bits) != bits);
 259         dprintk(1, "%s()\n", __func__);
 260
 261         mutex_lock(&dev->lock);
 262         fh->resources &= ~bits;
 263        dev->channels[fh->channel_id].resources &= ~bits;
 264         dprintk(1, "res: put %d\n", bits);
 265         mutex_unlock(&dev->lock);
 266 }
 267
 268 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
 269 {
 270         struct v4l2_routing route;
 271         memset(&route, 0, sizeof(route));
 272
 273         dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 274                 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
 275                 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
 276         dev->input = input;
 277
 278         route.input = INPUT(input)->vmux;
 279
 280         /* Tell the internal A/V decoder */
 281         cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
 282
 283         return 0;
 284 }
 285
 286 int cx25821_start_video_dma(struct cx25821_dev *dev,
 287                             struct cx25821_dmaqueue *q,
 288                             struct cx25821_buffer *buf,
 289                             struct sram_channel *channel)
 290 {
 291         int tmp = 0;
 292
 293         /* setup fifo + format */
 294         cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
 295
 296         /* reset counter */
 297         cx_write(channel->gpcnt_ctl, 3);
 298         q->count = 1;
 299
 300         /* enable irq */
 301         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
 302         cx_set(channel->int_msk, 0x11);
 303
 304         /* start dma */
 305         cx_write(channel->dma_ctl, 0x11);       /* FIFO and RISC enable */
 306
 307         /* make sure upstream setting if any is reversed */
 308         tmp = cx_read(VID_CH_MODE_SEL);
 309         cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
 310
 311         return 0;
 312 }
 313
 314 int cx25821_restart_video_queue(struct cx25821_dev *dev,
 315                                 struct cx25821_dmaqueue *q,
 316                                 struct sram_channel *channel)
 317 {
 318         struct cx25821_buffer *buf, *prev;
 319         struct list_head *item;
 320
 321         if (!list_empty(&q->active)) {
 322                 buf =
 323                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 324
 325                 cx25821_start_video_dma(dev, q, buf, channel);
 326
 327                 list_for_each(item, &q->active) {
 328                         buf = list_entry(item, struct cx25821_buffer, vb.queue);
 329                         buf->count = q->count++;
 330                 }
 331
 332                 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 333                 return 0;
 334         }
 335
 336         prev = NULL;
 337         for (;;) {
 338                 if (list_empty(&q->queued))
 339                         return 0;
 340
 341                 buf =
 342                     list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
 343
 344                 if (NULL == prev) {
 345                         list_move_tail(&buf->vb.queue, &q->active);
 346                         cx25821_start_video_dma(dev, q, buf, channel);
 347                         buf->vb.state = VIDEOBUF_ACTIVE;
 348                         buf->count = q->count++;
 349                         mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 350                 } else if (prev->vb.width == buf->vb.width &&
 351                            prev->vb.height == buf->vb.height &&
 352                            prev->fmt == buf->fmt) {
 353                         list_move_tail(&buf->vb.queue, &q->active);
 354                         buf->vb.state = VIDEOBUF_ACTIVE;
 355                         buf->count = q->count++;
 356                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 357                         prev->risc.jmp[2] = cpu_to_le32(0);     /* Bits 63 - 32 */
 358                 } else {
 359                         return 0;
 360                 }
 361                 prev = buf;
 362         }
 363 }
 364
 365 void cx25821_vid_timeout(unsigned long data)
 366 {
 367         struct cx25821_data *timeout_data = (struct cx25821_data *)data;
 368         struct cx25821_dev *dev = timeout_data->dev;
 369         struct sram_channel *channel = timeout_data->channel;
 370        struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
 371         struct cx25821_buffer *buf;
 372         unsigned long flags;
 373
 374        /* cx25821_sram_channel_dump(dev, channel); */
 375         cx_clear(channel->dma_ctl, 0x11);
 376
 377         spin_lock_irqsave(&dev->slock, flags);
 378         while (!list_empty(&q->active)) {
 379                 buf =
 380                     list_entry(q->active.next, struct cx25821_buffer, vb.queue);
 381                 list_del(&buf->vb.queue);
 382
 383                 buf->vb.state = VIDEOBUF_ERROR;
 384                 wake_up(&buf->vb.done);
 385         }
 386
 387         cx25821_restart_video_queue(dev, q, channel);
 388         spin_unlock_irqrestore(&dev->slock, flags);
 389 }
 390
 391 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
 392 {
 393         u32 count = 0;
 394         int handled = 0;
 395         u32 mask;
 396        struct sram_channel *channel = dev->channels[chan_num].sram_channels;
 397
 398         mask = cx_read(channel->int_msk);
 399         if (0 == (status & mask))
 400                 return handled;
 401
 402         cx_write(channel->int_stat, status);
 403
 404         /* risc op code error */
 405         if (status & (1 << 16)) {
 406                 pr_warn("%s, %s: video risc op code error\n",
 407                         dev->name, channel->name);
 408                 cx_clear(channel->dma_ctl, 0x11);
 409                 cx25821_sram_channel_dump(dev, channel);
 410         }
 411
 412         /* risc1 y */
 413         if (status & FLD_VID_DST_RISC1) {
 414                 spin_lock(&dev->slock);
 415                 count = cx_read(channel->gpcnt);
 416                cx25821_video_wakeup(dev,
 417                        &dev->channels[channel->i].vidq, count);
 418                 spin_unlock(&dev->slock);
 419                 handled++;
 420         }
 421
 422         /* risc2 y */
 423         if (status & 0x10) {
 424                 dprintk(2, "stopper video\n");
 425                 spin_lock(&dev->slock);
 426                cx25821_restart_video_queue(dev,
 427                                &dev->channels[channel->i].vidq,
 428                                        channel);
 429                 spin_unlock(&dev->slock);
 430                 handled++;
 431         }
 432         return handled;
 433 }
 434
 435 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
 436 {
 437         if (dev->ioctl_dev) {
 438                 if (video_is_registered(dev->ioctl_dev))
 439                         video_unregister_device(dev->ioctl_dev);
 440                 else
 441                         video_device_release(dev->ioctl_dev);
 442
 443                 dev->ioctl_dev = NULL;
 444         }
 445 }
 446
 447 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
 448 {
 449         cx_clear(PCI_INT_MSK, 1);
 450
 451        if (dev->channels[chan_num].video_dev) {
 452                if (video_is_registered(dev->channels[chan_num].video_dev))
 453                        video_unregister_device(
 454                                dev->channels[chan_num].video_dev);
 455                 else
 456                        video_device_release(
 457                                dev->channels[chan_num].video_dev);
 458
 459                dev->channels[chan_num].video_dev = NULL;
 460
 461                btcx_riscmem_free(dev->pci,
 462                        &dev->channels[chan_num].vidq.stopper);
 463
 464                 pr_warn("device %d released!\n", chan_num);
 465         }
 466
 467 }
 468
 469 int cx25821_video_register(struct cx25821_dev *dev)
 470 {
 471         int err;
 472        int i;
 473
 474        struct video_device cx25821_video_device = {
 475                .name = "cx25821-video",
 476                .fops = &video_fops,
 477                .minor = -1,
 478                .ioctl_ops = &video_ioctl_ops,
 479                .tvnorms = CX25821_NORMS,
 480                .current_norm = V4L2_STD_NTSC_M,
 481        };
 482
 483         spin_lock_init(&dev->slock);
 484
 485     for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
 486                cx25821_init_controls(dev, i);
 487
 488                cx25821_risc_stopper(dev->pci,
 489                                &dev->channels[i].vidq.stopper,
 490                                dev->channels[i].sram_channels->dma_ctl,
 491                                0x11, 0);
 492
 493                dev->channels[i].sram_channels = &cx25821_sram_channels[i];
 494                dev->channels[i].video_dev = NULL;
 495                dev->channels[i].resources = 0;
 496
 497                cx_write(dev->channels[i].sram_channels->int_stat,
 498                                0xffffffff);
 499
 500                INIT_LIST_HEAD(&dev->channels[i].vidq.active);
 501                INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
 502
 503                dev->channels[i].timeout_data.dev = dev;
 504                dev->channels[i].timeout_data.channel =
 505                                        &cx25821_sram_channels[i];
 506                dev->channels[i].vidq.timeout.function =
 507                                        cx25821_vid_timeout;
 508                dev->channels[i].vidq.timeout.data =
 509                        (unsigned long)&dev->channels[i].timeout_data;
 510                init_timer(&dev->channels[i].vidq.timeout);
 511
 512                /* register v4l devices */
 513                dev->channels[i].video_dev = cx25821_vdev_init(dev,
 514                        dev->pci, &cx25821_video_device, "video");
 515
 516                err = video_register_device(dev->channels[i].video_dev,
 517                                VFL_TYPE_GRABBER, video_nr[dev->nr]);
 518
 519                if (err < 0)
 520                        goto fail_unreg;
 521
 522         }
 523
 524     /* set PCI interrupt */
 525         cx_set(PCI_INT_MSK, 0xff);
 526
 527         /* initial device configuration */
 528         mutex_lock(&dev->lock);
 529 #ifdef TUNER_FLAG
 530        dev->tvnorm = cx25821_video_device.current_norm;
 531         cx25821_set_tvnorm(dev, dev->tvnorm);
 532 #endif
 533         mutex_unlock(&dev->lock);
 534
 535
 536     return 0;
 537
 538 fail_unreg:
 539        cx25821_video_unregister(dev, i);
 540         return err;
 541 }
 542
 543 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
 544                  unsigned int *size)
 545 {
 546         struct cx25821_fh *fh = q->priv_data;
 547
 548         *size = fh->fmt->depth * fh->width * fh->height >> 3;
 549
 550         if (0 == *count)
 551                 *count = 32;
 552
 553         if (*size * *count > vid_limit * 1024 * 1024)
 554                 *count = (vid_limit * 1024 * 1024) / *size;
 555
 556         return 0;
 557 }
 558
 559 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 560                    enum v4l2_field field)
 561 {
 562         struct cx25821_fh *fh = q->priv_data;
 563         struct cx25821_dev *dev = fh->dev;
 564         struct cx25821_buffer *buf =
 565             container_of(vb, struct cx25821_buffer, vb);
 566         int rc, init_buffer = 0;
 567         u32 line0_offset, line1_offset;
 568         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 569         int bpl_local = LINE_SIZE_D1;
 570        int channel_opened = fh->channel_id;
 571
 572         BUG_ON(NULL == fh->fmt);
 573         if (fh->width < 48 || fh->width > 720 ||
 574             fh->height < 32 || fh->height > 576)
 575                 return -EINVAL;
 576
 577         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 578
 579         if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
 580                 return -EINVAL;
 581
 582         if (buf->fmt != fh->fmt ||
 583             buf->vb.width != fh->width ||
 584             buf->vb.height != fh->height || buf->vb.field != field) {
 585                 buf->fmt = fh->fmt;
 586                 buf->vb.width = fh->width;
 587                 buf->vb.height = fh->height;
 588                 buf->vb.field = field;
 589                 init_buffer = 1;
 590         }
 591
 592         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 593                 init_buffer = 1;
 594                 rc = videobuf_iolock(q, &buf->vb, NULL);
 595                 if (0 != rc) {
 596                         printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
 597                         goto fail;
 598                 }
 599         }
 600
 601         dprintk(1, "init_buffer=%d\n", init_buffer);
 602
 603         if (init_buffer) {
 604
 605                 channel_opened = dev->channel_opened;
 606                 channel_opened = (channel_opened < 0
 607                                   || channel_opened > 7) ? 7 : channel_opened;
 608
 609                if (dev->channels[channel_opened]
 610                        .pixel_formats == PIXEL_FRMT_411)
 611                         buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
 612                 else
 613                         buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
 614
 615                if (dev->channels[channel_opened]
 616                        .pixel_formats == PIXEL_FRMT_411) {
 617                         bpl_local = buf->bpl;
 618                 } else {
 619                        bpl_local = buf->bpl;   /* Default */
 620
 621                         if (channel_opened >= 0 && channel_opened <= 7) {
 622                                if (dev->channels[channel_opened]
 623                                                .use_cif_resolution) {
 624                                         if (dev->tvnorm & V4L2_STD_PAL_BG
 625                                             || dev->tvnorm & V4L2_STD_PAL_DK)
 626                                                 bpl_local = 352 << 1;
 627                                         else
 628                                                 bpl_local =
 629                                                  dev->channels[channel_opened].
 630                                                  cif_width <<
 631                                                  1;
 632                                 }
 633                         }
 634                 }
 635
 636                 switch (buf->vb.field) {
 637                 case V4L2_FIELD_TOP:
 638                         cx25821_risc_buffer(dev->pci, &buf->risc,
 639                                             dma->sglist, 0, UNSET,
 640                                             buf->bpl, 0, buf->vb.height);
 641                         break;
 642                 case V4L2_FIELD_BOTTOM:
 643                         cx25821_risc_buffer(dev->pci, &buf->risc,
 644                                             dma->sglist, UNSET, 0,
 645                                             buf->bpl, 0, buf->vb.height);
 646                         break;
 647                 case V4L2_FIELD_INTERLACED:
 648                         /* All other formats are top field first */
 649                         line0_offset = 0;
 650                         line1_offset = buf->bpl;
 651                         dprintk(1, "top field first\n");
 652
 653                         cx25821_risc_buffer(dev->pci, &buf->risc,
 654                                             dma->sglist, line0_offset,
 655                                             bpl_local, bpl_local, bpl_local,
 656                                             buf->vb.height >> 1);
 657                         break;
 658                 case V4L2_FIELD_SEQ_TB:
 659                         cx25821_risc_buffer(dev->pci, &buf->risc,
 660                                             dma->sglist,
 661                                             0, buf->bpl * (buf->vb.height >> 1),
 662                                             buf->bpl, 0, buf->vb.height >> 1);
 663                         break;
 664                 case V4L2_FIELD_SEQ_BT:
 665                         cx25821_risc_buffer(dev->pci, &buf->risc,
 666                                             dma->sglist,
 667                                             buf->bpl * (buf->vb.height >> 1), 0,
 668                                             buf->bpl, 0, buf->vb.height >> 1);
 669                         break;
 670                 default:
 671                         BUG();
 672                 }
 673         }
 674
 675         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 676                 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
 677                 fh->fmt->name, (unsigned long)buf->risc.dma);
 678
 679         buf->vb.state = VIDEOBUF_PREPARED;
 680
 681         return 0;
 682
 683       fail:
 684         cx25821_free_buffer(q, buf);
 685         return rc;
 686 }
 687
 688 void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
 689 {
 690         struct cx25821_buffer *buf =
 691             container_of(vb, struct cx25821_buffer, vb);
 692
 693         cx25821_free_buffer(q, buf);
 694 }
 695
 696 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
 697 {
 698         switch (fh->type) {
 699         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 700                 return &fh->vidq;
 701         default:
 702                 BUG();
 703                 return NULL;
 704         }
 705 }
 706
 707 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
 708 {
 709         switch (fh->type) {
 710         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 711                 return resource;
 712         default:
 713                 BUG();
 714                 return 0;
 715         }
 716 }
 717
 718 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
 719 {
 720         struct cx25821_fh *fh = file->private_data;
 721
 722         return videobuf_mmap_mapper(get_queue(fh), vma);
 723 }
 724
 725
 726 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 727 {
 728        struct cx25821_buffer *buf =
 729            container_of(vb, struct cx25821_buffer, vb);
 730        struct cx25821_buffer *prev;
 731        struct cx25821_fh *fh = vq->priv_data;
 732        struct cx25821_dev *dev = fh->dev;
 733        struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
 734
 735        /* add jump to stopper */
 736        buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 737        buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 738        buf->risc.jmp[2] = cpu_to_le32(0);      /* bits 63-32 */
 739
 740        dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
 741
 742        if (!list_empty(&q->queued)) {
 743                list_add_tail(&buf->vb.queue, &q->queued);
 744                buf->vb.state = VIDEOBUF_QUEUED;
 745                dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
 746                        buf->vb.i);
 747
 748        } else if (list_empty(&q->active)) {
 749                list_add_tail(&buf->vb.queue, &q->active);
 750                cx25821_start_video_dma(dev, q, buf,
 751                                        dev->channels[fh->channel_id].
 752                                        sram_channels);
 753                buf->vb.state = VIDEOBUF_ACTIVE;
 754                buf->count = q->count++;
 755                mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
 756                dprintk(2,
 757                        "[%p/%d] buffer_queue - first active, buf cnt = %d, \
 758                        q->count = %d\n",
 759                        buf, buf->vb.i, buf->count, q->count);
 760        } else {
 761                prev =
 762                    list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
 763                if (prev->vb.width == buf->vb.width
 764                    && prev->vb.height == buf->vb.height
 765                    && prev->fmt == buf->fmt) {
 766                        list_add_tail(&buf->vb.queue, &q->active);
 767                        buf->vb.state = VIDEOBUF_ACTIVE;
 768                        buf->count = q->count++;
 769                        prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 770
 771                        /* 64 bit bits 63-32 */
 772                        prev->risc.jmp[2] = cpu_to_le32(0);
 773                        dprintk(2,
 774                                "[%p/%d] buffer_queue - append to active, \
 775                                buf->count=%d\n",
 776                                buf, buf->vb.i, buf->count);
 777
 778                } else {
 779                        list_add_tail(&buf->vb.queue, &q->queued);
 780                        buf->vb.state = VIDEOBUF_QUEUED;
 781                        dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
 782                                buf->vb.i);
 783                }
 784        }
 785
 786        if (list_empty(&q->active))
 787                dprintk(2, "active queue empty!\n");
 788 }
 789
 790 static struct videobuf_queue_ops cx25821_video_qops = {
 791        .buf_setup = cx25821_buffer_setup,
 792        .buf_prepare = cx25821_buffer_prepare,
 793        .buf_queue = buffer_queue,
 794        .buf_release = cx25821_buffer_release,
 795 };
 796
 797 static int video_open(struct file *file)
 798 {
 799        struct video_device *vdev = video_devdata(file);
 800        struct cx25821_dev *h, *dev = video_drvdata(file);
 801        struct cx25821_fh *fh;
 802        struct list_head *list;
 803        int minor = video_devdata(file)->minor;
 804        enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 805        u32 pix_format;
 806        int ch_id = 0;
 807        int i;
 808
 809        dprintk(1, "open dev=%s type=%s\n",
 810                        video_device_node_name(vdev),
 811                        v4l2_type_names[type]);
 812
 813        /* allocate + initialize per filehandle data */
 814        fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 815        if (NULL == fh)
 816                return -ENOMEM;
 817
 818        lock_kernel();
 819
 820        list_for_each(list, &cx25821_devlist)
 821        {
 822                h = list_entry(list, struct cx25821_dev, devlist);
 823
 824                for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
 825                        if (h->channels[i].video_dev &&
 826                            h->channels[i].video_dev->minor == minor) {
 827                                dev = h;
 828                                ch_id = i;
 829                                type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 830                        }
 831                }
 832        }
 833
 834        if (NULL == dev) {
 835                unlock_kernel();
 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        unlock_kernel();
 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 };