git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/cx23885/cx23885-video.c

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@hauppauge.com>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/kmod.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <linux/kthread.h>
  32 #include <asm/div64.h>
  33
  34 #include "cx23885.h"
  35 #include <media/v4l2-common.h>
  36 #include <media/v4l2-ioctl.h>
  37
  38 #ifdef CONFIG_VIDEO_V4L1_COMPAT
  39 /* Include V4L1 specific functions. Should be removed soon */
  40 #include <linux/videodev.h>
  41 #endif
  42
  43 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  44 MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
  45 MODULE_LICENSE("GPL");
  46
  47 /* ------------------------------------------------------------------ */
  48
  49 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  50 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  51 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  52
  53 module_param_array(video_nr, int, NULL, 0444);
  54 module_param_array(vbi_nr,   int, NULL, 0444);
  55 module_param_array(radio_nr, int, NULL, 0444);
  56
  57 MODULE_PARM_DESC(video_nr, "video device numbers");
  58 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  59 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  60
  61 static unsigned int video_debug;
  62 module_param(video_debug, int, 0644);
  63 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  64
  65 static unsigned int irq_debug;
  66 module_param(irq_debug, int, 0644);
  67 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  68
  69 static unsigned int vid_limit = 16;
  70 module_param(vid_limit, int, 0644);
  71 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  72
  73 #define dprintk(level, fmt, arg...)\
  74         do { if (video_debug >= level)\
  75                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  76         } while (0)
  77
  78 /* ------------------------------------------------------------------- */
  79 /* static data                                                         */
  80
  81 #define FORMAT_FLAGS_PACKED       0x01
  82
  83 static struct cx23885_fmt formats[] = {
  84         {
  85                 .name     = "8 bpp, gray",
  86                 .fourcc   = V4L2_PIX_FMT_GREY,
  87                 .depth    = 8,
  88                 .flags    = FORMAT_FLAGS_PACKED,
  89         }, {
  90                 .name     = "15 bpp RGB, le",
  91                 .fourcc   = V4L2_PIX_FMT_RGB555,
  92                 .depth    = 16,
  93                 .flags    = FORMAT_FLAGS_PACKED,
  94         }, {
  95                 .name     = "15 bpp RGB, be",
  96                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  97                 .depth    = 16,
  98                 .flags    = FORMAT_FLAGS_PACKED,
  99         }, {
 100                 .name     = "16 bpp RGB, le",
 101                 .fourcc   = V4L2_PIX_FMT_RGB565,
 102                 .depth    = 16,
 103                 .flags    = FORMAT_FLAGS_PACKED,
 104         }, {
 105                 .name     = "16 bpp RGB, be",
 106                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 107                 .depth    = 16,
 108                 .flags    = FORMAT_FLAGS_PACKED,
 109         }, {
 110                 .name     = "24 bpp RGB, le",
 111                 .fourcc   = V4L2_PIX_FMT_BGR24,
 112                 .depth    = 24,
 113                 .flags    = FORMAT_FLAGS_PACKED,
 114         }, {
 115                 .name     = "32 bpp RGB, le",
 116                 .fourcc   = V4L2_PIX_FMT_BGR32,
 117                 .depth    = 32,
 118                 .flags    = FORMAT_FLAGS_PACKED,
 119         }, {
 120                 .name     = "32 bpp RGB, be",
 121                 .fourcc   = V4L2_PIX_FMT_RGB32,
 122                 .depth    = 32,
 123                 .flags    = FORMAT_FLAGS_PACKED,
 124         }, {
 125                 .name     = "4:2:2, packed, YUYV",
 126                 .fourcc   = V4L2_PIX_FMT_YUYV,
 127                 .depth    = 16,
 128                 .flags    = FORMAT_FLAGS_PACKED,
 129         }, {
 130                 .name     = "4:2:2, packed, UYVY",
 131                 .fourcc   = V4L2_PIX_FMT_UYVY,
 132                 .depth    = 16,
 133                 .flags    = FORMAT_FLAGS_PACKED,
 134         },
 135 };
 136
 137 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 138 {
 139         unsigned int i;
 140
 141         for (i = 0; i < ARRAY_SIZE(formats); i++)
 142                 if (formats[i].fourcc == fourcc)
 143                         return formats+i;
 144
 145         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 146         return NULL;
 147 }
 148
 149 /* ------------------------------------------------------------------- */
 150
 151 static const struct v4l2_queryctrl no_ctl = {
 152         .name  = "42",
 153         .flags = V4L2_CTRL_FLAG_DISABLED,
 154 };
 155
 156 static struct cx23885_ctrl cx23885_ctls[] = {
 157         /* --- video --- */
 158         {
 159                 .v = {
 160                         .id            = V4L2_CID_BRIGHTNESS,
 161                         .name          = "Brightness",
 162                         .minimum       = 0x00,
 163                         .maximum       = 0xff,
 164                         .step          = 1,
 165                         .default_value = 0x7f,
 166                         .type          = V4L2_CTRL_TYPE_INTEGER,
 167                 },
 168                 .off                   = 128,
 169                 .reg                   = LUMA_CTRL,
 170                 .mask                  = 0x00ff,
 171                 .shift                 = 0,
 172         }, {
 173                 .v = {
 174                         .id            = V4L2_CID_CONTRAST,
 175                         .name          = "Contrast",
 176                         .minimum       = 0,
 177                         .maximum       = 0xff,
 178                         .step          = 1,
 179                         .default_value = 0x3f,
 180                         .type          = V4L2_CTRL_TYPE_INTEGER,
 181                 },
 182                 .off                   = 0,
 183                 .reg                   = LUMA_CTRL,
 184                 .mask                  = 0xff00,
 185                 .shift                 = 8,
 186         }, {
 187                 .v = {
 188                         .id            = V4L2_CID_HUE,
 189                         .name          = "Hue",
 190                         .minimum       = 0,
 191                         .maximum       = 0xff,
 192                         .step          = 1,
 193                         .default_value = 0x7f,
 194                         .type          = V4L2_CTRL_TYPE_INTEGER,
 195                 },
 196                 .off                   = 128,
 197                 .reg                   = CHROMA_CTRL,
 198                 .mask                  = 0xff0000,
 199                 .shift                 = 16,
 200         }, {
 201                 /* strictly, this only describes only U saturation.
 202                  * V saturation is handled specially through code.
 203                  */
 204                 .v = {
 205                         .id            = V4L2_CID_SATURATION,
 206                         .name          = "Saturation",
 207                         .minimum       = 0,
 208                         .maximum       = 0xff,
 209                         .step          = 1,
 210                         .default_value = 0x7f,
 211                         .type          = V4L2_CTRL_TYPE_INTEGER,
 212                 },
 213                 .off                   = 0,
 214                 .reg                   = CHROMA_CTRL,
 215                 .mask                  = 0x00ff,
 216                 .shift                 = 0,
 217         }, {
 218         /* --- audio --- */
 219                 .v = {
 220                         .id            = V4L2_CID_AUDIO_MUTE,
 221                         .name          = "Mute",
 222                         .minimum       = 0,
 223                         .maximum       = 1,
 224                         .default_value = 1,
 225                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 226                 },
 227                 .reg                   = PATH1_CTL1,
 228                 .mask                  = (0x1f << 24),
 229                 .shift                 = 24,
 230         }, {
 231                 .v = {
 232                         .id            = V4L2_CID_AUDIO_VOLUME,
 233                         .name          = "Volume",
 234                         .minimum       = 0,
 235                         .maximum       = 0x3f,
 236                         .step          = 1,
 237                         .default_value = 0x3f,
 238                         .type          = V4L2_CTRL_TYPE_INTEGER,
 239                 },
 240                 .reg                   = PATH1_VOL_CTL,
 241                 .mask                  = 0xff,
 242                 .shift                 = 0,
 243         }
 244 };
 245 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 246
 247 const u32 cx23885_user_ctrls[] = {
 248         V4L2_CID_USER_CLASS,
 249         V4L2_CID_BRIGHTNESS,
 250         V4L2_CID_CONTRAST,
 251         V4L2_CID_SATURATION,
 252         V4L2_CID_HUE,
 253         V4L2_CID_AUDIO_VOLUME,
 254         V4L2_CID_AUDIO_MUTE,
 255         0
 256 };
 257 EXPORT_SYMBOL(cx23885_user_ctrls);
 258
 259 static const u32 *ctrl_classes[] = {
 260         cx23885_user_ctrls,
 261         NULL
 262 };
 263
 264 void cx23885_video_wakeup(struct cx23885_dev *dev,
 265                  struct cx23885_dmaqueue *q, u32 count)
 266 {
 267         struct cx23885_buffer *buf;
 268         int bc;
 269
 270         for (bc = 0;; bc++) {
 271                 if (list_empty(&q->active))
 272                         break;
 273                 buf = list_entry(q->active.next,
 274                                  struct cx23885_buffer, vb.queue);
 275
 276                 /* count comes from the hw and is is 16bit wide --
 277                  * this trick handles wrap-arounds correctly for
 278                  * up to 32767 buffers in flight... */
 279                 if ((s16) (count - buf->count) < 0)
 280                         break;
 281
 282                 do_gettimeofday(&buf->vb.ts);
 283                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 284                         count, buf->count);
 285                 buf->vb.state = VIDEOBUF_DONE;
 286                 list_del(&buf->vb.queue);
 287                 wake_up(&buf->vb.done);
 288         }
 289         if (list_empty(&q->active)) {
 290                 del_timer(&q->timeout);
 291         } else {
 292                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 293         }
 294         if (bc != 1)
 295                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 296                         __func__, bc);
 297 }
 298
 299 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 300 {
 301         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 302                 __func__,
 303                 (unsigned int)norm,
 304                 v4l2_norm_to_name(norm));
 305
 306         dev->tvnorm = norm;
 307
 308         /* Tell the analog tuner/demods */
 309         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
 310
 311         /* Tell the internal A/V decoder */
 312         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
 313
 314         return 0;
 315 }
 316
 317 struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 318                                     struct pci_dev *pci,
 319                                     struct video_device *template,
 320                                     char *type)
 321 {
 322         struct video_device *vfd;
 323         dprintk(1, "%s()\n", __func__);
 324
 325         vfd = video_device_alloc();
 326         if (NULL == vfd)
 327                 return NULL;
 328         *vfd = *template;
 329         vfd->minor   = -1;
 330         vfd->parent  = &pci->dev;
 331         vfd->release = video_device_release;
 332         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 333                  dev->name, type, cx23885_boards[dev->board].name);
 334         return vfd;
 335 }
 336
 337 int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 338 {
 339         int i;
 340
 341         if (qctrl->id < V4L2_CID_BASE ||
 342             qctrl->id >= V4L2_CID_LASTP1)
 343                 return -EINVAL;
 344         for (i = 0; i < CX23885_CTLS; i++)
 345                 if (cx23885_ctls[i].v.id == qctrl->id)
 346                         break;
 347         if (i == CX23885_CTLS) {
 348                 *qctrl = no_ctl;
 349                 return 0;
 350         }
 351         *qctrl = cx23885_ctls[i].v;
 352         return 0;
 353 }
 354 EXPORT_SYMBOL(cx23885_ctrl_query);
 355
 356 /* ------------------------------------------------------------------- */
 357 /* resource management                                                 */
 358
 359 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 360         unsigned int bit)
 361 {
 362         dprintk(1, "%s()\n", __func__);
 363         if (fh->resources & bit)
 364                 /* have it already allocated */
 365                 return 1;
 366
 367         /* is it free? */
 368         mutex_lock(&dev->lock);
 369         if (dev->resources & bit) {
 370                 /* no, someone else uses it */
 371                 mutex_unlock(&dev->lock);
 372                 return 0;
 373         }
 374         /* it's free, grab it */
 375         fh->resources  |= bit;
 376         dev->resources |= bit;
 377         dprintk(1, "res: get %d\n", bit);
 378         mutex_unlock(&dev->lock);
 379         return 1;
 380 }
 381
 382 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 383 {
 384         return (fh->resources & bit);
 385 }
 386
 387 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 388 {
 389         return (dev->resources & bit);
 390 }
 391
 392 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 393         unsigned int bits)
 394 {
 395         BUG_ON((fh->resources & bits) != bits);
 396         dprintk(1, "%s()\n", __func__);
 397
 398         mutex_lock(&dev->lock);
 399         fh->resources  &= ~bits;
 400         dev->resources &= ~bits;
 401         dprintk(1, "res: put %d\n", bits);
 402         mutex_unlock(&dev->lock);
 403 }
 404
 405 int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 406 {
 407         struct v4l2_routing route;
 408         memset(&route, 0, sizeof(route));
 409
 410         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 411                 __func__,
 412                 input, INPUT(input)->vmux,
 413                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 414                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 415         dev->input = input;
 416
 417         route.input = INPUT(input)->vmux;
 418
 419         /* Tell the internal A/V decoder */
 420         cx23885_call_i2c_clients(&dev->i2c_bus[2],
 421                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
 422
 423         return 0;
 424 }
 425 EXPORT_SYMBOL(cx23885_video_mux);
 426
 427 /* ------------------------------------------------------------------ */
 428 int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 429         unsigned int height, enum v4l2_field field)
 430 {
 431         dprintk(1, "%s()\n", __func__);
 432         return 0;
 433 }
 434
 435 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 436                            struct cx23885_dmaqueue *q,
 437                            struct cx23885_buffer *buf)
 438 {
 439         dprintk(1, "%s()\n", __func__);
 440
 441         /* setup fifo + format */
 442         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 443                                 buf->bpl, buf->risc.dma);
 444         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 445
 446         /* reset counter */
 447         cx_write(VID_A_GPCNT_CTL, 3);
 448         q->count = 1;
 449
 450         /* enable irq */
 451         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 452         cx_set(VID_A_INT_MSK, 0x000011);
 453
 454         /* start dma */
 455         cx_set(DEV_CNTRL2, (1<<5));
 456         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 457
 458         return 0;
 459 }
 460
 461
 462 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 463                                struct cx23885_dmaqueue *q)
 464 {
 465         struct cx23885_buffer *buf, *prev;
 466         struct list_head *item;
 467         dprintk(1, "%s()\n", __func__);
 468
 469         if (!list_empty(&q->active)) {
 470                 buf = list_entry(q->active.next, struct cx23885_buffer,
 471                         vb.queue);
 472                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 473                         buf, buf->vb.i);
 474                 cx23885_start_video_dma(dev, q, buf);
 475                 list_for_each(item, &q->active) {
 476                         buf = list_entry(item, struct cx23885_buffer,
 477                                 vb.queue);
 478                         buf->count    = q->count++;
 479                 }
 480                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 481                 return 0;
 482         }
 483
 484         prev = NULL;
 485         for (;;) {
 486                 if (list_empty(&q->queued))
 487                         return 0;
 488                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 489                         vb.queue);
 490                 if (NULL == prev) {
 491                         list_move_tail(&buf->vb.queue, &q->active);
 492                         cx23885_start_video_dma(dev, q, buf);
 493                         buf->vb.state = VIDEOBUF_ACTIVE;
 494                         buf->count    = q->count++;
 495                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 496                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 497                                 buf, buf->vb.i);
 498
 499                 } else if (prev->vb.width  == buf->vb.width  &&
 500                            prev->vb.height == buf->vb.height &&
 501                            prev->fmt       == buf->fmt) {
 502                         list_move_tail(&buf->vb.queue, &q->active);
 503                         buf->vb.state = VIDEOBUF_ACTIVE;
 504                         buf->count    = q->count++;
 505                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 506                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 507                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 508                                 buf, buf->vb.i);
 509                 } else {
 510                         return 0;
 511                 }
 512                 prev = buf;
 513         }
 514 }
 515
 516 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 517         unsigned int *size)
 518 {
 519         struct cx23885_fh *fh = q->priv_data;
 520
 521         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 522         if (0 == *count)
 523                 *count = 32;
 524         while (*size * *count > vid_limit * 1024 * 1024)
 525                 (*count)--;
 526         return 0;
 527 }
 528
 529 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 530                enum v4l2_field field)
 531 {
 532         struct cx23885_fh *fh  = q->priv_data;
 533         struct cx23885_dev *dev = fh->dev;
 534         struct cx23885_buffer *buf =
 535                 container_of(vb, struct cx23885_buffer, vb);
 536         int rc, init_buffer = 0;
 537         u32 line0_offset, line1_offset;
 538         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 539
 540         BUG_ON(NULL == fh->fmt);
 541         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 542             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 543                 return -EINVAL;
 544         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 545         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 546                 return -EINVAL;
 547
 548         if (buf->fmt       != fh->fmt    ||
 549             buf->vb.width  != fh->width  ||
 550             buf->vb.height != fh->height ||
 551             buf->vb.field  != field) {
 552                 buf->fmt       = fh->fmt;
 553                 buf->vb.width  = fh->width;
 554                 buf->vb.height = fh->height;
 555                 buf->vb.field  = field;
 556                 init_buffer = 1;
 557         }
 558
 559         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 560                 init_buffer = 1;
 561                 rc = videobuf_iolock(q, &buf->vb, NULL);
 562                 if (0 != rc)
 563                         goto fail;
 564         }
 565
 566         if (init_buffer) {
 567                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 568                 switch (buf->vb.field) {
 569                 case V4L2_FIELD_TOP:
 570                         cx23885_risc_buffer(dev->pci, &buf->risc,
 571                                          dma->sglist, 0, UNSET,
 572                                          buf->bpl, 0, buf->vb.height);
 573                         break;
 574                 case V4L2_FIELD_BOTTOM:
 575                         cx23885_risc_buffer(dev->pci, &buf->risc,
 576                                          dma->sglist, UNSET, 0,
 577                                          buf->bpl, 0, buf->vb.height);
 578                         break;
 579                 case V4L2_FIELD_INTERLACED:
 580                         if (dev->tvnorm & V4L2_STD_NTSC) {
 581                                 /* cx25840 transmits NTSC bottom field first */
 582                                 dprintk(1, "%s() Creating NTSC risc\n",
 583                                         __func__);
 584                                 line0_offset = buf->bpl;
 585                                 line1_offset = 0;
 586                         } else {
 587                                 /* All other formats are top field first */
 588                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 589                                         __func__);
 590                                 line0_offset = 0;
 591                                 line1_offset = buf->bpl;
 592                         }
 593                         cx23885_risc_buffer(dev->pci, &buf->risc,
 594                                         dma->sglist, line0_offset,
 595                                         line1_offset,
 596                                         buf->bpl, buf->bpl,
 597                                         buf->vb.height >> 1);
 598                         break;
 599                 case V4L2_FIELD_SEQ_TB:
 600                         cx23885_risc_buffer(dev->pci, &buf->risc,
 601                                          dma->sglist,
 602                                          0, buf->bpl * (buf->vb.height >> 1),
 603                                          buf->bpl, 0,
 604                                          buf->vb.height >> 1);
 605                         break;
 606                 case V4L2_FIELD_SEQ_BT:
 607                         cx23885_risc_buffer(dev->pci, &buf->risc,
 608                                          dma->sglist,
 609                                          buf->bpl * (buf->vb.height >> 1), 0,
 610                                          buf->bpl, 0,
 611                                          buf->vb.height >> 1);
 612                         break;
 613                 default:
 614                         BUG();
 615                 }
 616         }
 617         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 618                 buf, buf->vb.i,
 619                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 620                 (unsigned long)buf->risc.dma);
 621
 622         buf->vb.state = VIDEOBUF_PREPARED;
 623         return 0;
 624
 625  fail:
 626         cx23885_free_buffer(q, buf);
 627         return rc;
 628 }
 629
 630 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 631 {
 632         struct cx23885_buffer   *buf = container_of(vb,
 633                 struct cx23885_buffer, vb);
 634         struct cx23885_buffer   *prev;
 635         struct cx23885_fh       *fh   = vq->priv_data;
 636         struct cx23885_dev      *dev  = fh->dev;
 637         struct cx23885_dmaqueue *q    = &dev->vidq;
 638
 639         /* add jump to stopper */
 640         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 641         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 642         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 643
 644         if (!list_empty(&q->queued)) {
 645                 list_add_tail(&buf->vb.queue, &q->queued);
 646                 buf->vb.state = VIDEOBUF_QUEUED;
 647                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 648                         buf, buf->vb.i);
 649
 650         } else if (list_empty(&q->active)) {
 651                 list_add_tail(&buf->vb.queue, &q->active);
 652                 cx23885_start_video_dma(dev, q, buf);
 653                 buf->vb.state = VIDEOBUF_ACTIVE;
 654                 buf->count    = q->count++;
 655                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 656                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 657                         buf, buf->vb.i);
 658
 659         } else {
 660                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 661                         vb.queue);
 662                 if (prev->vb.width  == buf->vb.width  &&
 663                     prev->vb.height == buf->vb.height &&
 664                     prev->fmt       == buf->fmt) {
 665                         list_add_tail(&buf->vb.queue, &q->active);
 666                         buf->vb.state = VIDEOBUF_ACTIVE;
 667                         buf->count    = q->count++;
 668                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 669                         /* 64 bit bits 63-32 */
 670                         prev->risc.jmp[2] = cpu_to_le32(0);
 671                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 672                                 buf, buf->vb.i);
 673
 674                 } else {
 675                         list_add_tail(&buf->vb.queue, &q->queued);
 676                         buf->vb.state = VIDEOBUF_QUEUED;
 677                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 678                                 buf, buf->vb.i);
 679                 }
 680         }
 681 }
 682
 683 static void buffer_release(struct videobuf_queue *q,
 684         struct videobuf_buffer *vb)
 685 {
 686         struct cx23885_buffer *buf = container_of(vb,
 687                 struct cx23885_buffer, vb);
 688
 689         cx23885_free_buffer(q, buf);
 690 }
 691
 692 static struct videobuf_queue_ops cx23885_video_qops = {
 693         .buf_setup    = buffer_setup,
 694         .buf_prepare  = buffer_prepare,
 695         .buf_queue    = buffer_queue,
 696         .buf_release  = buffer_release,
 697 };
 698
 699 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 700 {
 701         switch (fh->type) {
 702         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 703                 return &fh->vidq;
 704         case V4L2_BUF_TYPE_VBI_CAPTURE:
 705                 return &fh->vbiq;
 706         default:
 707                 BUG();
 708                 return NULL;
 709         }
 710 }
 711
 712 static int get_resource(struct cx23885_fh *fh)
 713 {
 714         switch (fh->type) {
 715         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 716                 return RESOURCE_VIDEO;
 717         case V4L2_BUF_TYPE_VBI_CAPTURE:
 718                 return RESOURCE_VBI;
 719         default:
 720                 BUG();
 721                 return 0;
 722         }
 723 }
 724
 725 static int video_open(struct inode *inode, struct file *file)
 726 {
 727         int minor = iminor(inode);
 728         struct cx23885_dev *h, *dev = NULL;
 729         struct cx23885_fh *fh;
 730         struct list_head *list;
 731         enum v4l2_buf_type type = 0;
 732         int radio = 0;
 733
 734         list_for_each(list, &cx23885_devlist) {
 735                 h = list_entry(list, struct cx23885_dev, devlist);
 736                 if (h->video_dev->minor == minor) {
 737                         dev  = h;
 738                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 739                 }
 740                 if (h->vbi_dev &&
 741                    h->vbi_dev->minor == minor) {
 742                         dev  = h;
 743                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 744                 }
 745                 if (h->radio_dev &&
 746                     h->radio_dev->minor == minor) {
 747                         radio = 1;
 748                         dev   = h;
 749                 }
 750         }
 751         if (NULL == dev)
 752                 return -ENODEV;
 753
 754         dprintk(1, "open minor=%d radio=%d type=%s\n",
 755                 minor, radio, v4l2_type_names[type]);
 756
 757         /* allocate + initialize per filehandle data */
 758         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 759         if (NULL == fh)
 760                 return -ENOMEM;
 761         file->private_data = fh;
 762         fh->dev      = dev;
 763         fh->radio    = radio;
 764         fh->type     = type;
 765         fh->width    = 320;
 766         fh->height   = 240;
 767         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 768
 769         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 770                             &dev->pci->dev, &dev->slock,
 771                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 772                             V4L2_FIELD_INTERLACED,
 773                             sizeof(struct cx23885_buffer),
 774                             fh);
 775
 776         dprintk(1, "post videobuf_queue_init()\n");
 777
 778
 779         return 0;
 780 }
 781
 782 static ssize_t video_read(struct file *file, char __user *data,
 783         size_t count, loff_t *ppos)
 784 {
 785         struct cx23885_fh *fh = file->private_data;
 786
 787         switch (fh->type) {
 788         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 789                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 790                         return -EBUSY;
 791                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 792                                          file->f_flags & O_NONBLOCK);
 793         case V4L2_BUF_TYPE_VBI_CAPTURE:
 794                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 795                         return -EBUSY;
 796                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 797                                             file->f_flags & O_NONBLOCK);
 798         default:
 799                 BUG();
 800                 return 0;
 801         }
 802 }
 803
 804 static unsigned int video_poll(struct file *file,
 805         struct poll_table_struct *wait)
 806 {
 807         struct cx23885_fh *fh = file->private_data;
 808         struct cx23885_buffer *buf;
 809
 810         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 811                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 812                         return POLLERR;
 813                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 814         }
 815
 816         if (res_check(fh, RESOURCE_VIDEO)) {
 817                 /* streaming capture */
 818                 if (list_empty(&fh->vidq.stream))
 819                         return POLLERR;
 820                 buf = list_entry(fh->vidq.stream.next,
 821                         struct cx23885_buffer, vb.stream);
 822         } else {
 823                 /* read() capture */
 824                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 825                 if (NULL == buf)
 826                         return POLLERR;
 827         }
 828         poll_wait(file, &buf->vb.done, wait);
 829         if (buf->vb.state == VIDEOBUF_DONE ||
 830             buf->vb.state == VIDEOBUF_ERROR)
 831                 return POLLIN|POLLRDNORM;
 832         return 0;
 833 }
 834
 835 static int video_release(struct inode *inode, struct file *file)
 836 {
 837         struct cx23885_fh *fh = file->private_data;
 838         struct cx23885_dev *dev = fh->dev;
 839
 840         /* turn off overlay */
 841         if (res_check(fh, RESOURCE_OVERLAY)) {
 842                 /* FIXME */
 843                 res_free(dev, fh, RESOURCE_OVERLAY);
 844         }
 845
 846         /* stop video capture */
 847         if (res_check(fh, RESOURCE_VIDEO)) {
 848                 videobuf_queue_cancel(&fh->vidq);
 849                 res_free(dev, fh, RESOURCE_VIDEO);
 850         }
 851         if (fh->vidq.read_buf) {
 852                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 853                 kfree(fh->vidq.read_buf);
 854         }
 855
 856         /* stop vbi capture */
 857         if (res_check(fh, RESOURCE_VBI)) {
 858                 if (fh->vbiq.streaming)
 859                         videobuf_streamoff(&fh->vbiq);
 860                 if (fh->vbiq.reading)
 861                         videobuf_read_stop(&fh->vbiq);
 862                 res_free(dev, fh, RESOURCE_VBI);
 863         }
 864
 865         videobuf_mmap_free(&fh->vidq);
 866         file->private_data = NULL;
 867         kfree(fh);
 868
 869         /* We are not putting the tuner to sleep here on exit, because
 870          * we want to use the mpeg encoder in another session to capture
 871          * tuner video. Closing this will result in no video to the encoder.
 872          */
 873
 874         return 0;
 875 }
 876
 877 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 878 {
 879         struct cx23885_fh *fh = file->private_data;
 880
 881         return videobuf_mmap_mapper(get_queue(fh), vma);
 882 }
 883
 884 /* ------------------------------------------------------------------ */
 885 /* VIDEO CTRL IOCTLS                                                  */
 886
 887 int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
 888 {
 889         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 890         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
 891         return 0;
 892 }
 893 EXPORT_SYMBOL(cx23885_get_control);
 894
 895 int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
 896 {
 897         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 898                 " (disabled - no action)\n", __func__);
 899         return 0;
 900 }
 901 EXPORT_SYMBOL(cx23885_set_control);
 902
 903 static void init_controls(struct cx23885_dev *dev)
 904 {
 905         struct v4l2_control ctrl;
 906         int i;
 907
 908         for (i = 0; i < CX23885_CTLS; i++) {
 909                 ctrl.id = cx23885_ctls[i].v.id;
 910                 ctrl.value = cx23885_ctls[i].v.default_value;
 911
 912                 cx23885_set_control(dev, &ctrl);
 913         }
 914 }
 915
 916 /* ------------------------------------------------------------------ */
 917 /* VIDEO IOCTLS                                                       */
 918
 919 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 920         struct v4l2_format *f)
 921 {
 922         struct cx23885_fh *fh   = priv;
 923
 924         f->fmt.pix.width        = fh->width;
 925         f->fmt.pix.height       = fh->height;
 926         f->fmt.pix.field        = fh->vidq.field;
 927         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 928         f->fmt.pix.bytesperline =
 929                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 930         f->fmt.pix.sizeimage =
 931                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 932
 933         return 0;
 934 }
 935
 936 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 937         struct v4l2_format *f)
 938 {
 939         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 940         struct cx23885_fmt *fmt;
 941         enum v4l2_field   field;
 942         unsigned int      maxw, maxh;
 943
 944         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 945         if (NULL == fmt)
 946                 return -EINVAL;
 947
 948         field = f->fmt.pix.field;
 949         maxw  = norm_maxw(dev->tvnorm);
 950         maxh  = norm_maxh(dev->tvnorm);
 951
 952         if (V4L2_FIELD_ANY == field) {
 953                 field = (f->fmt.pix.height > maxh/2)
 954                         ? V4L2_FIELD_INTERLACED
 955                         : V4L2_FIELD_BOTTOM;
 956         }
 957
 958         switch (field) {
 959         case V4L2_FIELD_TOP:
 960         case V4L2_FIELD_BOTTOM:
 961                 maxh = maxh / 2;
 962                 break;
 963         case V4L2_FIELD_INTERLACED:
 964                 break;
 965         default:
 966                 return -EINVAL;
 967         }
 968
 969         f->fmt.pix.field = field;
 970         if (f->fmt.pix.height < 32)
 971                 f->fmt.pix.height = 32;
 972         if (f->fmt.pix.height > maxh)
 973                 f->fmt.pix.height = maxh;
 974         if (f->fmt.pix.width < 48)
 975                 f->fmt.pix.width = 48;
 976         if (f->fmt.pix.width > maxw)
 977                 f->fmt.pix.width = maxw;
 978         f->fmt.pix.width &= ~0x03;
 979         f->fmt.pix.bytesperline =
 980                 (f->fmt.pix.width * fmt->depth) >> 3;
 981         f->fmt.pix.sizeimage =
 982                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 983
 984         return 0;
 985 }
 986
 987 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 988         struct v4l2_format *f)
 989 {
 990         struct cx23885_fh *fh = priv;
 991         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 992         int err;
 993
 994         dprintk(2, "%s()\n", __func__);
 995         err = vidioc_try_fmt_vid_cap(file, priv, f);
 996
 997         if (0 != err)
 998                 return err;
 999         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1000         fh->width      = f->fmt.pix.width;
1001         fh->height     = f->fmt.pix.height;
1002         fh->vidq.field = f->fmt.pix.field;
1003         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1004                 fh->width, fh->height, fh->vidq.field);
1005         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1006         return 0;
1007 }
1008
1009 static int vidioc_querycap(struct file *file, void  *priv,
1010         struct v4l2_capability *cap)
1011 {
1012         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1013
1014         strcpy(cap->driver, "cx23885");
1015         strlcpy(cap->card, cx23885_boards[dev->board].name,
1016                 sizeof(cap->card));
1017         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1018         cap->version = CX23885_VERSION_CODE;
1019         cap->capabilities =
1020                 V4L2_CAP_VIDEO_CAPTURE |
1021                 V4L2_CAP_READWRITE     |
1022                 V4L2_CAP_STREAMING     |
1023                 V4L2_CAP_VBI_CAPTURE;
1024         if (UNSET != dev->tuner_type)
1025                 cap->capabilities |= V4L2_CAP_TUNER;
1026         return 0;
1027 }
1028
1029 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1030         struct v4l2_fmtdesc *f)
1031 {
1032         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1033                 return -EINVAL;
1034
1035         strlcpy(f->description, formats[f->index].name,
1036                 sizeof(f->description));
1037         f->pixelformat = formats[f->index].fourcc;
1038
1039         return 0;
1040 }
1041
1042 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1043 static int vidiocgmbuf(struct file *file, void *priv,
1044         struct video_mbuf *mbuf)
1045 {
1046         struct cx23885_fh *fh = priv;
1047         struct videobuf_queue *q;
1048         struct v4l2_requestbuffers req;
1049         unsigned int i;
1050         int err;
1051
1052         q = get_queue(fh);
1053         memset(&req, 0, sizeof(req));
1054         req.type   = q->type;
1055         req.count  = 8;
1056         req.memory = V4L2_MEMORY_MMAP;
1057         err = videobuf_reqbufs(q, &req);
1058         if (err < 0)
1059                 return err;
1060
1061         mbuf->frames = req.count;
1062         mbuf->size   = 0;
1063         for (i = 0; i < mbuf->frames; i++) {
1064                 mbuf->offsets[i]  = q->bufs[i]->boff;
1065                 mbuf->size       += q->bufs[i]->bsize;
1066         }
1067         return 0;
1068 }
1069 #endif
1070
1071 static int vidioc_reqbufs(struct file *file, void *priv,
1072         struct v4l2_requestbuffers *p)
1073 {
1074         struct cx23885_fh *fh = priv;
1075         return (videobuf_reqbufs(get_queue(fh), p));
1076 }
1077
1078 static int vidioc_querybuf(struct file *file, void *priv,
1079         struct v4l2_buffer *p)
1080 {
1081         struct cx23885_fh *fh = priv;
1082         return (videobuf_querybuf(get_queue(fh), p));
1083 }
1084
1085 static int vidioc_qbuf(struct file *file, void *priv,
1086         struct v4l2_buffer *p)
1087 {
1088         struct cx23885_fh *fh = priv;
1089         return (videobuf_qbuf(get_queue(fh), p));
1090 }
1091
1092 static int vidioc_dqbuf(struct file *file, void *priv,
1093         struct v4l2_buffer *p)
1094 {
1095         struct cx23885_fh *fh = priv;
1096         return (videobuf_dqbuf(get_queue(fh), p,
1097                                 file->f_flags & O_NONBLOCK));
1098 }
1099
1100 static int vidioc_streamon(struct file *file, void *priv,
1101         enum v4l2_buf_type i)
1102 {
1103         struct cx23885_fh *fh = priv;
1104         struct cx23885_dev *dev = fh->dev;
1105         dprintk(1, "%s()\n", __func__);
1106
1107         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1108                 return -EINVAL;
1109         if (unlikely(i != fh->type))
1110                 return -EINVAL;
1111
1112         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1113                 return -EBUSY;
1114         return videobuf_streamon(get_queue(fh));
1115 }
1116
1117 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1118 {
1119         struct cx23885_fh *fh = priv;
1120         struct cx23885_dev *dev = fh->dev;
1121         int err, res;
1122         dprintk(1, "%s()\n", __func__);
1123
1124         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1125                 return -EINVAL;
1126         if (i != fh->type)
1127                 return -EINVAL;
1128
1129         res = get_resource(fh);
1130         err = videobuf_streamoff(get_queue(fh));
1131         if (err < 0)
1132                 return err;
1133         res_free(dev, fh, res);
1134         return 0;
1135 }
1136
1137 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1138 {
1139         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1140         dprintk(1, "%s()\n", __func__);
1141
1142         mutex_lock(&dev->lock);
1143         cx23885_set_tvnorm(dev, *tvnorms);
1144         mutex_unlock(&dev->lock);
1145
1146         return 0;
1147 }
1148
1149 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1150 {
1151         static const char *iname[] = {
1152                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1153                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1154                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1155                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1156                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1157                 [CX23885_VMUX_TELEVISION] = "Television",
1158                 [CX23885_VMUX_CABLE]      = "Cable TV",
1159                 [CX23885_VMUX_DVB]        = "DVB",
1160                 [CX23885_VMUX_DEBUG]      = "for debug only",
1161         };
1162         unsigned int n;
1163         dprintk(1, "%s()\n", __func__);
1164
1165         n = i->index;
1166         if (n >= 4)
1167                 return -EINVAL;
1168
1169         if (0 == INPUT(n)->type)
1170                 return -EINVAL;
1171
1172         memset(i, 0, sizeof(*i));
1173         i->index = n;
1174         i->type  = V4L2_INPUT_TYPE_CAMERA;
1175         strcpy(i->name, iname[INPUT(n)->type]);
1176         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1177                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1178                 i->type = V4L2_INPUT_TYPE_TUNER;
1179                 i->std = CX23885_NORMS;
1180         return 0;
1181 }
1182 EXPORT_SYMBOL(cx23885_enum_input);
1183
1184 static int vidioc_enum_input(struct file *file, void *priv,
1185                                 struct v4l2_input *i)
1186 {
1187         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1188         dprintk(1, "%s()\n", __func__);
1189         return cx23885_enum_input(dev, i);
1190 }
1191
1192 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1193 {
1194         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1195
1196         *i = dev->input;
1197         dprintk(1, "%s() returns %d\n", __func__, *i);
1198         return 0;
1199 }
1200
1201 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1202 {
1203         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1204
1205         dprintk(1, "%s(%d)\n", __func__, i);
1206
1207         if (i >= 4) {
1208                 dprintk(1, "%s() -EINVAL\n", __func__);
1209                 return -EINVAL;
1210         }
1211
1212         mutex_lock(&dev->lock);
1213         cx23885_video_mux(dev, i);
1214         mutex_unlock(&dev->lock);
1215         return 0;
1216 }
1217
1218 static int vidioc_queryctrl(struct file *file, void *priv,
1219                                 struct v4l2_queryctrl *qctrl)
1220 {
1221         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1222         if (unlikely(qctrl->id == 0))
1223                 return -EINVAL;
1224         return cx23885_ctrl_query(qctrl);
1225 }
1226
1227 static int vidioc_g_ctrl(struct file *file, void *priv,
1228                                 struct v4l2_control *ctl)
1229 {
1230         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1231
1232         return cx23885_get_control(dev, ctl);
1233 }
1234
1235 static int vidioc_s_ctrl(struct file *file, void *priv,
1236                                 struct v4l2_control *ctl)
1237 {
1238         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1239
1240         return cx23885_set_control(dev, ctl);
1241 }
1242
1243 static int vidioc_g_tuner(struct file *file, void *priv,
1244                                 struct v4l2_tuner *t)
1245 {
1246         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1247
1248         if (unlikely(UNSET == dev->tuner_type))
1249                 return -EINVAL;
1250         if (0 != t->index)
1251                 return -EINVAL;
1252
1253         strcpy(t->name, "Television");
1254         t->type       = V4L2_TUNER_ANALOG_TV;
1255         t->capability = V4L2_TUNER_CAP_NORM;
1256         t->rangehigh  = 0xffffffffUL;
1257         t->signal = 0xffff ; /* LOCKED */
1258         return 0;
1259 }
1260
1261 static int vidioc_s_tuner(struct file *file, void *priv,
1262                                 struct v4l2_tuner *t)
1263 {
1264         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1265
1266         if (UNSET == dev->tuner_type)
1267                 return -EINVAL;
1268         if (0 != t->index)
1269                 return -EINVAL;
1270         return 0;
1271 }
1272
1273 static int vidioc_g_frequency(struct file *file, void *priv,
1274                                 struct v4l2_frequency *f)
1275 {
1276         struct cx23885_fh *fh = priv;
1277         struct cx23885_dev *dev = fh->dev;
1278
1279         if (unlikely(UNSET == dev->tuner_type))
1280                 return -EINVAL;
1281
1282         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1283         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1284         f->frequency = dev->freq;
1285
1286         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1287
1288         return 0;
1289 }
1290
1291 int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1292 {
1293         if (unlikely(UNSET == dev->tuner_type))
1294                 return -EINVAL;
1295         if (unlikely(f->tuner != 0))
1296                 return -EINVAL;
1297
1298         mutex_lock(&dev->lock);
1299         dev->freq = f->frequency;
1300
1301         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1302
1303         /* When changing channels it is required to reset TVAUDIO */
1304         msleep(10);
1305
1306         mutex_unlock(&dev->lock);
1307
1308         return 0;
1309 }
1310 EXPORT_SYMBOL(cx23885_set_freq);
1311
1312 static int vidioc_s_frequency(struct file *file, void *priv,
1313                                 struct v4l2_frequency *f)
1314 {
1315         struct cx23885_fh *fh = priv;
1316         struct cx23885_dev *dev = fh->dev;
1317
1318         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1319                 return -EINVAL;
1320         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1321                 return -EINVAL;
1322
1323         return
1324                 cx23885_set_freq(dev, f);
1325 }
1326
1327 #ifdef CONFIG_VIDEO_ADV_DEBUG
1328 static int vidioc_g_register(struct file *file, void *fh,
1329                                 struct v4l2_register *reg)
1330 {
1331         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1332
1333         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1334                 return -EINVAL;
1335
1336         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1337
1338         return 0;
1339 }
1340
1341 static int vidioc_s_register(struct file *file, void *fh,
1342                                 struct v4l2_register *reg)
1343 {
1344         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1345
1346         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1347                 return -EINVAL;
1348
1349         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1350
1351         return 0;
1352 }
1353 #endif
1354
1355 /* ----------------------------------------------------------- */
1356
1357 static void cx23885_vid_timeout(unsigned long data)
1358 {
1359         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1360         struct cx23885_dmaqueue *q = &dev->vidq;
1361         struct cx23885_buffer *buf;
1362         unsigned long flags;
1363
1364         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1365
1366         cx_clear(VID_A_DMA_CTL, 0x11);
1367
1368         spin_lock_irqsave(&dev->slock, flags);
1369         while (!list_empty(&q->active)) {
1370                 buf = list_entry(q->active.next,
1371                         struct cx23885_buffer, vb.queue);
1372                 list_del(&buf->vb.queue);
1373                 buf->vb.state = VIDEOBUF_ERROR;
1374                 wake_up(&buf->vb.done);
1375                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1376                         dev->name, buf, buf->vb.i,
1377                         (unsigned long)buf->risc.dma);
1378         }
1379         cx23885_restart_video_queue(dev, q);
1380         spin_unlock_irqrestore(&dev->slock, flags);
1381 }
1382
1383 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1384 {
1385         u32 mask, count;
1386         int handled = 0;
1387
1388         mask   = cx_read(VID_A_INT_MSK);
1389         if (0 == (status & mask))
1390                 return handled;
1391         cx_write(VID_A_INT_STAT, status);
1392
1393         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1394         /* risc op code error */
1395         if (status & (1 << 16)) {
1396                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1397                         dev->name);
1398                 cx_clear(VID_A_DMA_CTL, 0x11);
1399                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1400         }
1401
1402         /* risc1 y */
1403         if (status & 0x01) {
1404                 spin_lock(&dev->slock);
1405                 count = cx_read(VID_A_GPCNT);
1406                 cx23885_video_wakeup(dev, &dev->vidq, count);
1407                 spin_unlock(&dev->slock);
1408                 handled++;
1409         }
1410         /* risc2 y */
1411         if (status & 0x10) {
1412                 dprintk(2, "stopper video\n");
1413                 spin_lock(&dev->slock);
1414                 cx23885_restart_video_queue(dev, &dev->vidq);
1415                 spin_unlock(&dev->slock);
1416                 handled++;
1417         }
1418
1419         return handled;
1420 }
1421
1422 /* ----------------------------------------------------------- */
1423 /* exported stuff                                              */
1424
1425 static const struct file_operations video_fops = {
1426         .owner         = THIS_MODULE,
1427         .open          = video_open,
1428         .release       = video_release,
1429         .read          = video_read,
1430         .poll          = video_poll,
1431         .mmap          = video_mmap,
1432         .ioctl         = video_ioctl2,
1433         .compat_ioctl  = v4l_compat_ioctl32,
1434         .llseek        = no_llseek,
1435 };
1436
1437 static struct video_device cx23885_vbi_template;
1438 static struct video_device cx23885_video_template = {
1439         .name                 = "cx23885-video",
1440         .type                 = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
1441         .fops                 = &video_fops,
1442         .minor                = -1,
1443         .vidioc_querycap      = vidioc_querycap,
1444         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1445         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1446         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1447         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1448         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1449         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1450         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1451         .vidioc_reqbufs       = vidioc_reqbufs,
1452         .vidioc_querybuf      = vidioc_querybuf,
1453         .vidioc_qbuf          = vidioc_qbuf,
1454         .vidioc_dqbuf         = vidioc_dqbuf,
1455         .vidioc_s_std         = vidioc_s_std,
1456         .vidioc_enum_input    = vidioc_enum_input,
1457         .vidioc_g_input       = vidioc_g_input,
1458         .vidioc_s_input       = vidioc_s_input,
1459         .vidioc_queryctrl     = vidioc_queryctrl,
1460         .vidioc_g_ctrl        = vidioc_g_ctrl,
1461         .vidioc_s_ctrl        = vidioc_s_ctrl,
1462         .vidioc_streamon      = vidioc_streamon,
1463         .vidioc_streamoff     = vidioc_streamoff,
1464 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1465         .vidiocgmbuf          = vidiocgmbuf,
1466 #endif
1467         .vidioc_g_tuner       = vidioc_g_tuner,
1468         .vidioc_s_tuner       = vidioc_s_tuner,
1469         .vidioc_g_frequency   = vidioc_g_frequency,
1470         .vidioc_s_frequency   = vidioc_s_frequency,
1471 #ifdef CONFIG_VIDEO_ADV_DEBUG
1472         .vidioc_g_register    = vidioc_g_register,
1473         .vidioc_s_register    = vidioc_s_register,
1474 #endif
1475         .tvnorms              = CX23885_NORMS,
1476         .current_norm         = V4L2_STD_NTSC_M,
1477 };
1478
1479 static const struct file_operations radio_fops = {
1480         .owner         = THIS_MODULE,
1481         .open          = video_open,
1482         .release       = video_release,
1483         .ioctl         = video_ioctl2,
1484         .compat_ioctl  = v4l_compat_ioctl32,
1485         .llseek        = no_llseek,
1486 };
1487
1488
1489 void cx23885_video_unregister(struct cx23885_dev *dev)
1490 {
1491         dprintk(1, "%s()\n", __func__);
1492         cx_clear(PCI_INT_MSK, 1);
1493
1494         if (dev->video_dev) {
1495                 if (-1 != dev->video_dev->minor)
1496                         video_unregister_device(dev->video_dev);
1497                 else
1498                         video_device_release(dev->video_dev);
1499                 dev->video_dev = NULL;
1500
1501                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1502         }
1503 }
1504
1505 int cx23885_video_register(struct cx23885_dev *dev)
1506 {
1507         int err;
1508
1509         dprintk(1, "%s()\n", __func__);
1510         spin_lock_init(&dev->slock);
1511
1512         /* Initialize VBI template */
1513         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1514                 sizeof(cx23885_vbi_template));
1515         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1516         cx23885_vbi_template.type = VID_TYPE_TELETEXT|VID_TYPE_TUNER;
1517
1518         dev->tvnorm = cx23885_video_template.current_norm;
1519
1520         /* init video dma queues */
1521         INIT_LIST_HEAD(&dev->vidq.active);
1522         INIT_LIST_HEAD(&dev->vidq.queued);
1523         dev->vidq.timeout.function = cx23885_vid_timeout;
1524         dev->vidq.timeout.data = (unsigned long)dev;
1525         init_timer(&dev->vidq.timeout);
1526         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1527                 VID_A_DMA_CTL, 0x11, 0x00);
1528
1529         /* Don't enable VBI yet */
1530         cx_set(PCI_INT_MSK, 1);
1531
1532
1533         /* register v4l devices */
1534         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1535                 &cx23885_video_template, "video");
1536         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1537                                     video_nr[dev->nr]);
1538         if (err < 0) {
1539                 printk(KERN_INFO "%s: can't register video device\n",
1540                         dev->name);
1541                 goto fail_unreg;
1542         }
1543         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1544                dev->name, dev->video_dev->minor & 0x1f);
1545         /* initial device configuration */
1546         mutex_lock(&dev->lock);
1547         cx23885_set_tvnorm(dev, dev->tvnorm);
1548         init_controls(dev);
1549         cx23885_video_mux(dev, 0);
1550         mutex_unlock(&dev->lock);
1551
1552         return 0;
1553
1554 fail_unreg:
1555         cx23885_video_unregister(dev);
1556         return err;
1557 }
1558