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