drivers/media/video/cx23885/cx23885-video.c

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