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/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <linux/kthread.h>
  32 #include <asm/div64.h>
  33
  34 #include "cx23885.h"
  35 #include <media/v4l2-common.h>
  36 #include <media/v4l2-ioctl.h>
  37
  38 #ifdef CONFIG_VIDEO_V4L1_COMPAT
  39 /* Include V4L1 specific functions. Should be removed soon */
  40 #include <linux/videodev.h>
  41 #endif
  42
  43 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  44 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  45 MODULE_LICENSE("GPL");
  46
  47 /* ------------------------------------------------------------------ */
  48
  49 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  50 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  51 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  52
  53 module_param_array(video_nr, int, NULL, 0444);
  54 module_param_array(vbi_nr,   int, NULL, 0444);
  55 module_param_array(radio_nr, int, NULL, 0444);
  56
  57 MODULE_PARM_DESC(video_nr, "video device numbers");
  58 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  59 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  60
  61 static unsigned int video_debug;
  62 module_param(video_debug, int, 0644);
  63 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  64
  65 static unsigned int irq_debug;
  66 module_param(irq_debug, int, 0644);
  67 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  68
  69 static unsigned int vid_limit = 16;
  70 module_param(vid_limit, int, 0644);
  71 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  72
  73 #define dprintk(level, fmt, arg...)\
  74         do { if (video_debug >= level)\
  75                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  76         } while (0)
  77
  78 /* ------------------------------------------------------------------- */
  79 /* static data                                                         */
  80
  81 #define FORMAT_FLAGS_PACKED       0x01
  82
  83 static struct cx23885_fmt formats[] = {
  84         {
  85                 .name     = "8 bpp, gray",
  86                 .fourcc   = V4L2_PIX_FMT_GREY,
  87                 .depth    = 8,
  88                 .flags    = FORMAT_FLAGS_PACKED,
  89         }, {
  90                 .name     = "15 bpp RGB, le",
  91                 .fourcc   = V4L2_PIX_FMT_RGB555,
  92                 .depth    = 16,
  93                 .flags    = FORMAT_FLAGS_PACKED,
  94         }, {
  95                 .name     = "15 bpp RGB, be",
  96                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  97                 .depth    = 16,
  98                 .flags    = FORMAT_FLAGS_PACKED,
  99         }, {
 100                 .name     = "16 bpp RGB, le",
 101                 .fourcc   = V4L2_PIX_FMT_RGB565,
 102                 .depth    = 16,
 103                 .flags    = FORMAT_FLAGS_PACKED,
 104         }, {
 105                 .name     = "16 bpp RGB, be",
 106                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 107                 .depth    = 16,
 108                 .flags    = FORMAT_FLAGS_PACKED,
 109         }, {
 110                 .name     = "24 bpp RGB, le",
 111                 .fourcc   = V4L2_PIX_FMT_BGR24,
 112                 .depth    = 24,
 113                 .flags    = FORMAT_FLAGS_PACKED,
 114         }, {
 115                 .name     = "32 bpp RGB, le",
 116                 .fourcc   = V4L2_PIX_FMT_BGR32,
 117                 .depth    = 32,
 118                 .flags    = FORMAT_FLAGS_PACKED,
 119         }, {
 120                 .name     = "32 bpp RGB, be",
 121                 .fourcc   = V4L2_PIX_FMT_RGB32,
 122                 .depth    = 32,
 123                 .flags    = FORMAT_FLAGS_PACKED,
 124         }, {
 125                 .name     = "4:2:2, packed, YUYV",
 126                 .fourcc   = V4L2_PIX_FMT_YUYV,
 127                 .depth    = 16,
 128                 .flags    = FORMAT_FLAGS_PACKED,
 129         }, {
 130                 .name     = "4:2:2, packed, UYVY",
 131                 .fourcc   = V4L2_PIX_FMT_UYVY,
 132                 .depth    = 16,
 133                 .flags    = FORMAT_FLAGS_PACKED,
 134         },
 135 };
 136
 137 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 138 {
 139         unsigned int i;
 140
 141         for (i = 0; i < ARRAY_SIZE(formats); i++)
 142                 if (formats[i].fourcc == fourcc)
 143                         return formats+i;
 144
 145         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 146         return NULL;
 147 }
 148
 149 /* ------------------------------------------------------------------- */
 150
 151 static const struct v4l2_queryctrl no_ctl = {
 152         .name  = "42",
 153         .flags = V4L2_CTRL_FLAG_DISABLED,
 154 };
 155
 156 static struct cx23885_ctrl cx23885_ctls[] = {
 157         /* --- video --- */
 158         {
 159                 .v = {
 160                         .id            = V4L2_CID_BRIGHTNESS,
 161                         .name          = "Brightness",
 162                         .minimum       = 0x00,
 163                         .maximum       = 0xff,
 164                         .step          = 1,
 165                         .default_value = 0x7f,
 166                         .type          = V4L2_CTRL_TYPE_INTEGER,
 167                 },
 168                 .off                   = 128,
 169                 .reg                   = LUMA_CTRL,
 170                 .mask                  = 0x00ff,
 171                 .shift                 = 0,
 172         }, {
 173                 .v = {
 174                         .id            = V4L2_CID_CONTRAST,
 175                         .name          = "Contrast",
 176                         .minimum       = 0,
 177                         .maximum       = 0xff,
 178                         .step          = 1,
 179                         .default_value = 0x3f,
 180                         .type          = V4L2_CTRL_TYPE_INTEGER,
 181                 },
 182                 .off                   = 0,
 183                 .reg                   = LUMA_CTRL,
 184                 .mask                  = 0xff00,
 185                 .shift                 = 8,
 186         }, {
 187                 .v = {
 188                         .id            = V4L2_CID_HUE,
 189                         .name          = "Hue",
 190                         .minimum       = 0,
 191                         .maximum       = 0xff,
 192                         .step          = 1,
 193                         .default_value = 0x7f,
 194                         .type          = V4L2_CTRL_TYPE_INTEGER,
 195                 },
 196                 .off                   = 128,
 197                 .reg                   = CHROMA_CTRL,
 198                 .mask                  = 0xff0000,
 199                 .shift                 = 16,
 200         }, {
 201                 /* strictly, this only describes only U saturation.
 202                  * V saturation is handled specially through code.
 203                  */
 204                 .v = {
 205                         .id            = V4L2_CID_SATURATION,
 206                         .name          = "Saturation",
 207                         .minimum       = 0,
 208                         .maximum       = 0xff,
 209                         .step          = 1,
 210                         .default_value = 0x7f,
 211                         .type          = V4L2_CTRL_TYPE_INTEGER,
 212                 },
 213                 .off                   = 0,
 214                 .reg                   = CHROMA_CTRL,
 215                 .mask                  = 0x00ff,
 216                 .shift                 = 0,
 217         }, {
 218         /* --- audio --- */
 219                 .v = {
 220                         .id            = V4L2_CID_AUDIO_MUTE,
 221                         .name          = "Mute",
 222                         .minimum       = 0,
 223                         .maximum       = 1,
 224                         .default_value = 1,
 225                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 226                 },
 227                 .reg                   = PATH1_CTL1,
 228                 .mask                  = (0x1f << 24),
 229                 .shift                 = 24,
 230         }, {
 231                 .v = {
 232                         .id            = V4L2_CID_AUDIO_VOLUME,
 233                         .name          = "Volume",
 234                         .minimum       = 0,
 235                         .maximum       = 0x3f,
 236                         .step          = 1,
 237                         .default_value = 0x3f,
 238                         .type          = V4L2_CTRL_TYPE_INTEGER,
 239                 },
 240                 .reg                   = PATH1_VOL_CTL,
 241                 .mask                  = 0xff,
 242                 .shift                 = 0,
 243         }
 244 };
 245 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 246
 247 static const u32 cx23885_user_ctrls[] = {
 248         V4L2_CID_USER_CLASS,
 249         V4L2_CID_BRIGHTNESS,
 250         V4L2_CID_CONTRAST,
 251         V4L2_CID_SATURATION,
 252         V4L2_CID_HUE,
 253         V4L2_CID_AUDIO_VOLUME,
 254         V4L2_CID_AUDIO_MUTE,
 255         0
 256 };
 257
 258 static const u32 *ctrl_classes[] = {
 259         cx23885_user_ctrls,
 260         NULL
 261 };
 262
 263 static 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         if (bc != 1)
 293                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 294                         __func__, bc);
 295 }
 296
 297 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 298 {
 299         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 300                 __func__,
 301                 (unsigned int)norm,
 302                 v4l2_norm_to_name(norm));
 303
 304         dev->tvnorm = norm;
 305
 306         /* Tell the analog tuner/demods */
 307         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
 308
 309         /* Tell the internal A/V decoder */
 310         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
 311
 312         return 0;
 313 }
 314
 315 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 316                                     struct pci_dev *pci,
 317                                     struct video_device *template,
 318                                     char *type)
 319 {
 320         struct video_device *vfd;
 321         dprintk(1, "%s()\n", __func__);
 322
 323         vfd = video_device_alloc();
 324         if (NULL == vfd)
 325                 return NULL;
 326         *vfd = *template;
 327         vfd->minor   = -1;
 328         vfd->parent  = &pci->dev;
 329         vfd->release = video_device_release;
 330         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 331                  dev->name, type, cx23885_boards[dev->board].name);
 332         return vfd;
 333 }
 334
 335 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 336 {
 337         int i;
 338
 339         if (qctrl->id < V4L2_CID_BASE ||
 340             qctrl->id >= V4L2_CID_LASTP1)
 341                 return -EINVAL;
 342         for (i = 0; i < CX23885_CTLS; i++)
 343                 if (cx23885_ctls[i].v.id == qctrl->id)
 344                         break;
 345         if (i == CX23885_CTLS) {
 346                 *qctrl = no_ctl;
 347                 return 0;
 348         }
 349         *qctrl = cx23885_ctls[i].v;
 350         return 0;
 351 }
 352
 353 /* ------------------------------------------------------------------- */
 354 /* resource management                                                 */
 355
 356 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 357         unsigned int bit)
 358 {
 359         dprintk(1, "%s()\n", __func__);
 360         if (fh->resources & bit)
 361                 /* have it already allocated */
 362                 return 1;
 363
 364         /* is it free? */
 365         mutex_lock(&dev->lock);
 366         if (dev->resources & bit) {
 367                 /* no, someone else uses it */
 368                 mutex_unlock(&dev->lock);
 369                 return 0;
 370         }
 371         /* it's free, grab it */
 372         fh->resources  |= bit;
 373         dev->resources |= bit;
 374         dprintk(1, "res: get %d\n", bit);
 375         mutex_unlock(&dev->lock);
 376         return 1;
 377 }
 378
 379 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 380 {
 381         return fh->resources & bit;
 382 }
 383
 384 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 385 {
 386         return dev->resources & bit;
 387 }
 388
 389 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 390         unsigned int bits)
 391 {
 392         BUG_ON((fh->resources & bits) != bits);
 393         dprintk(1, "%s()\n", __func__);
 394
 395         mutex_lock(&dev->lock);
 396         fh->resources  &= ~bits;
 397         dev->resources &= ~bits;
 398         dprintk(1, "res: put %d\n", bits);
 399         mutex_unlock(&dev->lock);
 400 }
 401
 402 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 403 {
 404         struct v4l2_routing route;
 405         memset(&route, 0, sizeof(route));
 406
 407         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 408                 __func__,
 409                 input, INPUT(input)->vmux,
 410                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 411                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 412         dev->input = input;
 413
 414         route.input = INPUT(input)->vmux;
 415
 416         /* Tell the internal A/V decoder */
 417         cx23885_call_i2c_clients(&dev->i2c_bus[2],
 418                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
 419
 420         return 0;
 421 }
 422
 423 /* ------------------------------------------------------------------ */
 424 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 425         unsigned int height, enum v4l2_field field)
 426 {
 427         dprintk(1, "%s()\n", __func__);
 428         return 0;
 429 }
 430
 431 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 432                            struct cx23885_dmaqueue *q,
 433                            struct cx23885_buffer *buf)
 434 {
 435         dprintk(1, "%s()\n", __func__);
 436
 437         /* setup fifo + format */
 438         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 439                                 buf->bpl, buf->risc.dma);
 440         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 441
 442         /* reset counter */
 443         cx_write(VID_A_GPCNT_CTL, 3);
 444         q->count = 1;
 445
 446         /* enable irq */
 447         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 448         cx_set(VID_A_INT_MSK, 0x000011);
 449
 450         /* start dma */
 451         cx_set(DEV_CNTRL2, (1<<5));
 452         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 453
 454         return 0;
 455 }
 456
 457
 458 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 459                                struct cx23885_dmaqueue *q)
 460 {
 461         struct cx23885_buffer *buf, *prev;
 462         struct list_head *item;
 463         dprintk(1, "%s()\n", __func__);
 464
 465         if (!list_empty(&q->active)) {
 466                 buf = list_entry(q->active.next, struct cx23885_buffer,
 467                         vb.queue);
 468                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 469                         buf, buf->vb.i);
 470                 cx23885_start_video_dma(dev, q, buf);
 471                 list_for_each(item, &q->active) {
 472                         buf = list_entry(item, struct cx23885_buffer,
 473                                 vb.queue);
 474                         buf->count    = q->count++;
 475                 }
 476                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 477                 return 0;
 478         }
 479
 480         prev = NULL;
 481         for (;;) {
 482                 if (list_empty(&q->queued))
 483                         return 0;
 484                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 485                         vb.queue);
 486                 if (NULL == prev) {
 487                         list_move_tail(&buf->vb.queue, &q->active);
 488                         cx23885_start_video_dma(dev, q, buf);
 489                         buf->vb.state = VIDEOBUF_ACTIVE;
 490                         buf->count    = q->count++;
 491                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 492                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 493                                 buf, buf->vb.i);
 494
 495                 } else if (prev->vb.width  == buf->vb.width  &&
 496                            prev->vb.height == buf->vb.height &&
 497                            prev->fmt       == buf->fmt) {
 498                         list_move_tail(&buf->vb.queue, &q->active);
 499                         buf->vb.state = VIDEOBUF_ACTIVE;
 500                         buf->count    = q->count++;
 501                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 502                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 503                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 504                                 buf, buf->vb.i);
 505                 } else {
 506                         return 0;
 507                 }
 508                 prev = buf;
 509         }
 510 }
 511
 512 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 513         unsigned int *size)
 514 {
 515         struct cx23885_fh *fh = q->priv_data;
 516
 517         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 518         if (0 == *count)
 519                 *count = 32;
 520         while (*size * *count > vid_limit * 1024 * 1024)
 521                 (*count)--;
 522         return 0;
 523 }
 524
 525 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 526                enum v4l2_field field)
 527 {
 528         struct cx23885_fh *fh  = q->priv_data;
 529         struct cx23885_dev *dev = fh->dev;
 530         struct cx23885_buffer *buf =
 531                 container_of(vb, struct cx23885_buffer, vb);
 532         int rc, init_buffer = 0;
 533         u32 line0_offset, line1_offset;
 534         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 535
 536         BUG_ON(NULL == fh->fmt);
 537         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 538             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 539                 return -EINVAL;
 540         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 541         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 542                 return -EINVAL;
 543
 544         if (buf->fmt       != fh->fmt    ||
 545             buf->vb.width  != fh->width  ||
 546             buf->vb.height != fh->height ||
 547             buf->vb.field  != field) {
 548                 buf->fmt       = fh->fmt;
 549                 buf->vb.width  = fh->width;
 550                 buf->vb.height = fh->height;
 551                 buf->vb.field  = field;
 552                 init_buffer = 1;
 553         }
 554
 555         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 556                 init_buffer = 1;
 557                 rc = videobuf_iolock(q, &buf->vb, NULL);
 558                 if (0 != rc)
 559                         goto fail;
 560         }
 561
 562         if (init_buffer) {
 563                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 564                 switch (buf->vb.field) {
 565                 case V4L2_FIELD_TOP:
 566                         cx23885_risc_buffer(dev->pci, &buf->risc,
 567                                          dma->sglist, 0, UNSET,
 568                                          buf->bpl, 0, buf->vb.height);
 569                         break;
 570                 case V4L2_FIELD_BOTTOM:
 571                         cx23885_risc_buffer(dev->pci, &buf->risc,
 572                                          dma->sglist, UNSET, 0,
 573                                          buf->bpl, 0, buf->vb.height);
 574                         break;
 575                 case V4L2_FIELD_INTERLACED:
 576                         if (dev->tvnorm & V4L2_STD_NTSC) {
 577                                 /* cx25840 transmits NTSC bottom field first */
 578                                 dprintk(1, "%s() Creating NTSC risc\n",
 579                                         __func__);
 580                                 line0_offset = buf->bpl;
 581                                 line1_offset = 0;
 582                         } else {
 583                                 /* All other formats are top field first */
 584                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 585                                         __func__);
 586                                 line0_offset = 0;
 587                                 line1_offset = buf->bpl;
 588                         }
 589                         cx23885_risc_buffer(dev->pci, &buf->risc,
 590                                         dma->sglist, line0_offset,
 591                                         line1_offset,
 592                                         buf->bpl, buf->bpl,
 593                                         buf->vb.height >> 1);
 594                         break;
 595                 case V4L2_FIELD_SEQ_TB:
 596                         cx23885_risc_buffer(dev->pci, &buf->risc,
 597                                          dma->sglist,
 598                                          0, buf->bpl * (buf->vb.height >> 1),
 599                                          buf->bpl, 0,
 600                                          buf->vb.height >> 1);
 601                         break;
 602                 case V4L2_FIELD_SEQ_BT:
 603                         cx23885_risc_buffer(dev->pci, &buf->risc,
 604                                          dma->sglist,
 605                                          buf->bpl * (buf->vb.height >> 1), 0,
 606                                          buf->bpl, 0,
 607                                          buf->vb.height >> 1);
 608                         break;
 609                 default:
 610                         BUG();
 611                 }
 612         }
 613         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 614                 buf, buf->vb.i,
 615                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 616                 (unsigned long)buf->risc.dma);
 617
 618         buf->vb.state = VIDEOBUF_PREPARED;
 619         return 0;
 620
 621  fail:
 622         cx23885_free_buffer(q, buf);
 623         return rc;
 624 }
 625
 626 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 627 {
 628         struct cx23885_buffer   *buf = container_of(vb,
 629                 struct cx23885_buffer, vb);
 630         struct cx23885_buffer   *prev;
 631         struct cx23885_fh       *fh   = vq->priv_data;
 632         struct cx23885_dev      *dev  = fh->dev;
 633         struct cx23885_dmaqueue *q    = &dev->vidq;
 634
 635         /* add jump to stopper */
 636         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 637         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 638         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 639
 640         if (!list_empty(&q->queued)) {
 641                 list_add_tail(&buf->vb.queue, &q->queued);
 642                 buf->vb.state = VIDEOBUF_QUEUED;
 643                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 644                         buf, buf->vb.i);
 645
 646         } else if (list_empty(&q->active)) {
 647                 list_add_tail(&buf->vb.queue, &q->active);
 648                 cx23885_start_video_dma(dev, q, buf);
 649                 buf->vb.state = VIDEOBUF_ACTIVE;
 650                 buf->count    = q->count++;
 651                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 652                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 653                         buf, buf->vb.i);
 654
 655         } else {
 656                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 657                         vb.queue);
 658                 if (prev->vb.width  == buf->vb.width  &&
 659                     prev->vb.height == buf->vb.height &&
 660                     prev->fmt       == buf->fmt) {
 661                         list_add_tail(&buf->vb.queue, &q->active);
 662                         buf->vb.state = VIDEOBUF_ACTIVE;
 663                         buf->count    = q->count++;
 664                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 665                         /* 64 bit bits 63-32 */
 666                         prev->risc.jmp[2] = cpu_to_le32(0);
 667                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 668                                 buf, buf->vb.i);
 669
 670                 } else {
 671                         list_add_tail(&buf->vb.queue, &q->queued);
 672                         buf->vb.state = VIDEOBUF_QUEUED;
 673                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 674                                 buf, buf->vb.i);
 675                 }
 676         }
 677 }
 678
 679 static void buffer_release(struct videobuf_queue *q,
 680         struct videobuf_buffer *vb)
 681 {
 682         struct cx23885_buffer *buf = container_of(vb,
 683                 struct cx23885_buffer, vb);
 684
 685         cx23885_free_buffer(q, buf);
 686 }
 687
 688 static struct videobuf_queue_ops cx23885_video_qops = {
 689         .buf_setup    = buffer_setup,
 690         .buf_prepare  = buffer_prepare,
 691         .buf_queue    = buffer_queue,
 692         .buf_release  = buffer_release,
 693 };
 694
 695 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 696 {
 697         switch (fh->type) {
 698         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 699                 return &fh->vidq;
 700         case V4L2_BUF_TYPE_VBI_CAPTURE:
 701                 return &fh->vbiq;
 702         default:
 703                 BUG();
 704                 return NULL;
 705         }
 706 }
 707
 708 static int get_resource(struct cx23885_fh *fh)
 709 {
 710         switch (fh->type) {
 711         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 712                 return RESOURCE_VIDEO;
 713         case V4L2_BUF_TYPE_VBI_CAPTURE:
 714                 return RESOURCE_VBI;
 715         default:
 716                 BUG();
 717                 return 0;
 718         }
 719 }
 720
 721 static int video_open(struct inode *inode, struct file *file)
 722 {
 723         int minor = iminor(inode);
 724         struct cx23885_dev *h, *dev = NULL;
 725         struct cx23885_fh *fh;
 726         struct list_head *list;
 727         enum v4l2_buf_type type = 0;
 728         int radio = 0;
 729
 730         lock_kernel();
 731         list_for_each(list, &cx23885_devlist) {
 732                 h = list_entry(list, struct cx23885_dev, devlist);
 733                 if (h->video_dev->minor == minor) {
 734                         dev  = h;
 735                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 736                 }
 737                 if (h->vbi_dev &&
 738                    h->vbi_dev->minor == minor) {
 739                         dev  = h;
 740                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 741                 }
 742                 if (h->radio_dev &&
 743                     h->radio_dev->minor == minor) {
 744                         radio = 1;
 745                         dev   = h;
 746                 }
 747         }
 748         if (NULL == dev) {
 749                 unlock_kernel();
 750                 return -ENODEV;
 751         }
 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                 unlock_kernel();
 760                 return -ENOMEM;
 761         }
 762         file->private_data = fh;
 763         fh->dev      = dev;
 764         fh->radio    = radio;
 765         fh->type     = type;
 766         fh->width    = 320;
 767         fh->height   = 240;
 768         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 769
 770         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 771                             &dev->pci->dev, &dev->slock,
 772                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 773                             V4L2_FIELD_INTERLACED,
 774                             sizeof(struct cx23885_buffer),
 775                             fh);
 776
 777         dprintk(1, "post videobuf_queue_init()\n");
 778
 779         unlock_kernel();
 780
 781         return 0;
 782 }
 783
 784 static ssize_t video_read(struct file *file, char __user *data,
 785         size_t count, loff_t *ppos)
 786 {
 787         struct cx23885_fh *fh = file->private_data;
 788
 789         switch (fh->type) {
 790         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 791                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 792                         return -EBUSY;
 793                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 794                                          file->f_flags & O_NONBLOCK);
 795         case V4L2_BUF_TYPE_VBI_CAPTURE:
 796                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 797                         return -EBUSY;
 798                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 799                                             file->f_flags & O_NONBLOCK);
 800         default:
 801                 BUG();
 802                 return 0;
 803         }
 804 }
 805
 806 static unsigned int video_poll(struct file *file,
 807         struct poll_table_struct *wait)
 808 {
 809         struct cx23885_fh *fh = file->private_data;
 810         struct cx23885_buffer *buf;
 811
 812         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 813                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 814                         return POLLERR;
 815                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 816         }
 817
 818         if (res_check(fh, RESOURCE_VIDEO)) {
 819                 /* streaming capture */
 820                 if (list_empty(&fh->vidq.stream))
 821                         return POLLERR;
 822                 buf = list_entry(fh->vidq.stream.next,
 823                         struct cx23885_buffer, vb.stream);
 824         } else {
 825                 /* read() capture */
 826                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 827                 if (NULL == buf)
 828                         return POLLERR;
 829         }
 830         poll_wait(file, &buf->vb.done, wait);
 831         if (buf->vb.state == VIDEOBUF_DONE ||
 832             buf->vb.state == VIDEOBUF_ERROR)
 833                 return POLLIN|POLLRDNORM;
 834         return 0;
 835 }
 836
 837 static int video_release(struct inode *inode, struct file *file)
 838 {
 839         struct cx23885_fh *fh = file->private_data;
 840         struct cx23885_dev *dev = fh->dev;
 841
 842         /* turn off overlay */
 843         if (res_check(fh, RESOURCE_OVERLAY)) {
 844                 /* FIXME */
 845                 res_free(dev, fh, RESOURCE_OVERLAY);
 846         }
 847
 848         /* stop video capture */
 849         if (res_check(fh, RESOURCE_VIDEO)) {
 850                 videobuf_queue_cancel(&fh->vidq);
 851                 res_free(dev, fh, RESOURCE_VIDEO);
 852         }
 853         if (fh->vidq.read_buf) {
 854                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 855                 kfree(fh->vidq.read_buf);
 856         }
 857
 858         /* stop vbi capture */
 859         if (res_check(fh, RESOURCE_VBI)) {
 860                 if (fh->vbiq.streaming)
 861                         videobuf_streamoff(&fh->vbiq);
 862                 if (fh->vbiq.reading)
 863                         videobuf_read_stop(&fh->vbiq);
 864                 res_free(dev, fh, RESOURCE_VBI);
 865         }
 866
 867         videobuf_mmap_free(&fh->vidq);
 868         file->private_data = NULL;
 869         kfree(fh);
 870
 871         /* We are not putting the tuner to sleep here on exit, because
 872          * we want to use the mpeg encoder in another session to capture
 873          * tuner video. Closing this will result in no video to the encoder.
 874          */
 875
 876         return 0;
 877 }
 878
 879 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 880 {
 881         struct cx23885_fh *fh = file->private_data;
 882
 883         return videobuf_mmap_mapper(get_queue(fh), vma);
 884 }
 885
 886 /* ------------------------------------------------------------------ */
 887 /* VIDEO CTRL IOCTLS                                                  */
 888
 889 static int cx23885_get_control(struct cx23885_dev *dev,
 890         struct v4l2_control *ctl)
 891 {
 892         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 893         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
 894         return 0;
 895 }
 896
 897 static int cx23885_set_control(struct cx23885_dev *dev,
 898         struct v4l2_control *ctl)
 899 {
 900         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 901                 " (disabled - no action)\n", __func__);
 902         return 0;
 903 }
 904
 905 static void init_controls(struct cx23885_dev *dev)
 906 {
 907         struct v4l2_control ctrl;
 908         int i;
 909
 910         for (i = 0; i < CX23885_CTLS; i++) {
 911                 ctrl.id = cx23885_ctls[i].v.id;
 912                 ctrl.value = cx23885_ctls[i].v.default_value;
 913
 914                 cx23885_set_control(dev, &ctrl);
 915         }
 916 }
 917
 918 /* ------------------------------------------------------------------ */
 919 /* VIDEO IOCTLS                                                       */
 920
 921 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 922         struct v4l2_format *f)
 923 {
 924         struct cx23885_fh *fh   = priv;
 925
 926         f->fmt.pix.width        = fh->width;
 927         f->fmt.pix.height       = fh->height;
 928         f->fmt.pix.field        = fh->vidq.field;
 929         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 930         f->fmt.pix.bytesperline =
 931                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 932         f->fmt.pix.sizeimage =
 933                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 934
 935         return 0;
 936 }
 937
 938 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 939         struct v4l2_format *f)
 940 {
 941         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 942         struct cx23885_fmt *fmt;
 943         enum v4l2_field   field;
 944         unsigned int      maxw, maxh;
 945
 946         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 947         if (NULL == fmt)
 948                 return -EINVAL;
 949
 950         field = f->fmt.pix.field;
 951         maxw  = norm_maxw(dev->tvnorm);
 952         maxh  = norm_maxh(dev->tvnorm);
 953
 954         if (V4L2_FIELD_ANY == field) {
 955                 field = (f->fmt.pix.height > maxh/2)
 956                         ? V4L2_FIELD_INTERLACED
 957                         : V4L2_FIELD_BOTTOM;
 958         }
 959
 960         switch (field) {
 961         case V4L2_FIELD_TOP:
 962         case V4L2_FIELD_BOTTOM:
 963                 maxh = maxh / 2;
 964                 break;
 965         case V4L2_FIELD_INTERLACED:
 966                 break;
 967         default:
 968                 return -EINVAL;
 969         }
 970
 971         f->fmt.pix.field = field;
 972         if (f->fmt.pix.height < 32)
 973                 f->fmt.pix.height = 32;
 974         if (f->fmt.pix.height > maxh)
 975                 f->fmt.pix.height = maxh;
 976         if (f->fmt.pix.width < 48)
 977                 f->fmt.pix.width = 48;
 978         if (f->fmt.pix.width > maxw)
 979                 f->fmt.pix.width = maxw;
 980         f->fmt.pix.width &= ~0x03;
 981         f->fmt.pix.bytesperline =
 982                 (f->fmt.pix.width * fmt->depth) >> 3;
 983         f->fmt.pix.sizeimage =
 984                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 985
 986         return 0;
 987 }
 988
 989 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 990         struct v4l2_format *f)
 991 {
 992         struct cx23885_fh *fh = priv;
 993         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 994         int err;
 995
 996         dprintk(2, "%s()\n", __func__);
 997         err = vidioc_try_fmt_vid_cap(file, priv, f);
 998
 999         if (0 != err)
1000                 return err;
1001         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1002         fh->width      = f->fmt.pix.width;
1003         fh->height     = f->fmt.pix.height;
1004         fh->vidq.field = f->fmt.pix.field;
1005         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1006                 fh->width, fh->height, fh->vidq.field);
1007         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1008         return 0;
1009 }
1010
1011 static int vidioc_querycap(struct file *file, void  *priv,
1012         struct v4l2_capability *cap)
1013 {
1014         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1015
1016         strcpy(cap->driver, "cx23885");
1017         strlcpy(cap->card, cx23885_boards[dev->board].name,
1018                 sizeof(cap->card));
1019         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1020         cap->version = CX23885_VERSION_CODE;
1021         cap->capabilities =
1022                 V4L2_CAP_VIDEO_CAPTURE |
1023                 V4L2_CAP_READWRITE     |
1024                 V4L2_CAP_STREAMING     |
1025                 V4L2_CAP_VBI_CAPTURE;
1026         if (UNSET != dev->tuner_type)
1027                 cap->capabilities |= V4L2_CAP_TUNER;
1028         return 0;
1029 }
1030
1031 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1032         struct v4l2_fmtdesc *f)
1033 {
1034         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1035                 return -EINVAL;
1036
1037         strlcpy(f->description, formats[f->index].name,
1038                 sizeof(f->description));
1039         f->pixelformat = formats[f->index].fourcc;
1040
1041         return 0;
1042 }
1043
1044 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1045 static int vidiocgmbuf(struct file *file, void *priv,
1046         struct video_mbuf *mbuf)
1047 {
1048         struct cx23885_fh *fh = priv;
1049         struct videobuf_queue *q;
1050         struct v4l2_requestbuffers req;
1051         unsigned int i;
1052         int err;
1053
1054         q = get_queue(fh);
1055         memset(&req, 0, sizeof(req));
1056         req.type   = q->type;
1057         req.count  = 8;
1058         req.memory = V4L2_MEMORY_MMAP;
1059         err = videobuf_reqbufs(q, &req);
1060         if (err < 0)
1061                 return err;
1062
1063         mbuf->frames = req.count;
1064         mbuf->size   = 0;
1065         for (i = 0; i < mbuf->frames; i++) {
1066                 mbuf->offsets[i]  = q->bufs[i]->boff;
1067                 mbuf->size       += q->bufs[i]->bsize;
1068         }
1069         return 0;
1070 }
1071 #endif
1072
1073 static int vidioc_reqbufs(struct file *file, void *priv,
1074         struct v4l2_requestbuffers *p)
1075 {
1076         struct cx23885_fh *fh = priv;
1077         return videobuf_reqbufs(get_queue(fh), p);
1078 }
1079
1080 static int vidioc_querybuf(struct file *file, void *priv,
1081         struct v4l2_buffer *p)
1082 {
1083         struct cx23885_fh *fh = priv;
1084         return videobuf_querybuf(get_queue(fh), p);
1085 }
1086
1087 static int vidioc_qbuf(struct file *file, void *priv,
1088         struct v4l2_buffer *p)
1089 {
1090         struct cx23885_fh *fh = priv;
1091         return videobuf_qbuf(get_queue(fh), p);
1092 }
1093
1094 static int vidioc_dqbuf(struct file *file, void *priv,
1095         struct v4l2_buffer *p)
1096 {
1097         struct cx23885_fh *fh = priv;
1098         return videobuf_dqbuf(get_queue(fh), p,
1099                                 file->f_flags & O_NONBLOCK);
1100 }
1101
1102 static int vidioc_streamon(struct file *file, void *priv,
1103         enum v4l2_buf_type i)
1104 {
1105         struct cx23885_fh *fh = priv;
1106         struct cx23885_dev *dev = fh->dev;
1107         dprintk(1, "%s()\n", __func__);
1108
1109         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1110                 return -EINVAL;
1111         if (unlikely(i != fh->type))
1112                 return -EINVAL;
1113
1114         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1115                 return -EBUSY;
1116         return videobuf_streamon(get_queue(fh));
1117 }
1118
1119 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1120 {
1121         struct cx23885_fh *fh = priv;
1122         struct cx23885_dev *dev = fh->dev;
1123         int err, res;
1124         dprintk(1, "%s()\n", __func__);
1125
1126         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1127                 return -EINVAL;
1128         if (i != fh->type)
1129                 return -EINVAL;
1130
1131         res = get_resource(fh);
1132         err = videobuf_streamoff(get_queue(fh));
1133         if (err < 0)
1134                 return err;
1135         res_free(dev, fh, res);
1136         return 0;
1137 }
1138
1139 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1140 {
1141         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1142         dprintk(1, "%s()\n", __func__);
1143
1144         mutex_lock(&dev->lock);
1145         cx23885_set_tvnorm(dev, *tvnorms);
1146         mutex_unlock(&dev->lock);
1147
1148         return 0;
1149 }
1150
1151 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1152 {
1153         static const char *iname[] = {
1154                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1155                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1156                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1157                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1158                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1159                 [CX23885_VMUX_TELEVISION] = "Television",
1160                 [CX23885_VMUX_CABLE]      = "Cable TV",
1161                 [CX23885_VMUX_DVB]        = "DVB",
1162                 [CX23885_VMUX_DEBUG]      = "for debug only",
1163         };
1164         unsigned int n;
1165         dprintk(1, "%s()\n", __func__);
1166
1167         n = i->index;
1168         if (n >= 4)
1169                 return -EINVAL;
1170
1171         if (0 == INPUT(n)->type)
1172                 return -EINVAL;
1173
1174         memset(i, 0, sizeof(*i));
1175         i->index = n;
1176         i->type  = V4L2_INPUT_TYPE_CAMERA;
1177         strcpy(i->name, iname[INPUT(n)->type]);
1178         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1179                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1180                 i->type = V4L2_INPUT_TYPE_TUNER;
1181                 i->std = CX23885_NORMS;
1182         return 0;
1183 }
1184
1185 static int vidioc_enum_input(struct file *file, void *priv,
1186                                 struct v4l2_input *i)
1187 {
1188         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1189         dprintk(1, "%s()\n", __func__);
1190         return cx23885_enum_input(dev, i);
1191 }
1192
1193 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1194 {
1195         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1196
1197         *i = dev->input;
1198         dprintk(1, "%s() returns %d\n", __func__, *i);
1199         return 0;
1200 }
1201
1202 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1203 {
1204         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1205
1206         dprintk(1, "%s(%d)\n", __func__, i);
1207
1208         if (i >= 4) {
1209                 dprintk(1, "%s() -EINVAL\n", __func__);
1210                 return -EINVAL;
1211         }
1212
1213         mutex_lock(&dev->lock);
1214         cx23885_video_mux(dev, i);
1215         mutex_unlock(&dev->lock);
1216         return 0;
1217 }
1218
1219 static int vidioc_queryctrl(struct file *file, void *priv,
1220                                 struct v4l2_queryctrl *qctrl)
1221 {
1222         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1223         if (unlikely(qctrl->id == 0))
1224                 return -EINVAL;
1225         return cx23885_ctrl_query(qctrl);
1226 }
1227
1228 static int vidioc_g_ctrl(struct file *file, void *priv,
1229                                 struct v4l2_control *ctl)
1230 {
1231         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1232
1233         return cx23885_get_control(dev, ctl);
1234 }
1235
1236 static int vidioc_s_ctrl(struct file *file, void *priv,
1237                                 struct v4l2_control *ctl)
1238 {
1239         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1240
1241         return cx23885_set_control(dev, ctl);
1242 }
1243
1244 static int vidioc_g_tuner(struct file *file, void *priv,
1245                                 struct v4l2_tuner *t)
1246 {
1247         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1248
1249         if (unlikely(UNSET == dev->tuner_type))
1250                 return -EINVAL;
1251         if (0 != t->index)
1252                 return -EINVAL;
1253
1254         strcpy(t->name, "Television");
1255         t->type       = V4L2_TUNER_ANALOG_TV;
1256         t->capability = V4L2_TUNER_CAP_NORM;
1257         t->rangehigh  = 0xffffffffUL;
1258         t->signal = 0xffff ; /* LOCKED */
1259         return 0;
1260 }
1261
1262 static int vidioc_s_tuner(struct file *file, void *priv,
1263                                 struct v4l2_tuner *t)
1264 {
1265         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1266
1267         if (UNSET == dev->tuner_type)
1268                 return -EINVAL;
1269         if (0 != t->index)
1270                 return -EINVAL;
1271         return 0;
1272 }
1273
1274 static int vidioc_g_frequency(struct file *file, void *priv,
1275                                 struct v4l2_frequency *f)
1276 {
1277         struct cx23885_fh *fh = priv;
1278         struct cx23885_dev *dev = fh->dev;
1279
1280         if (unlikely(UNSET == dev->tuner_type))
1281                 return -EINVAL;
1282
1283         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1284         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1285         f->frequency = dev->freq;
1286
1287         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1288
1289         return 0;
1290 }
1291
1292 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1293 {
1294         if (unlikely(UNSET == dev->tuner_type))
1295                 return -EINVAL;
1296         if (unlikely(f->tuner != 0))
1297                 return -EINVAL;
1298
1299         mutex_lock(&dev->lock);
1300         dev->freq = f->frequency;
1301
1302         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1303
1304         /* When changing channels it is required to reset TVAUDIO */
1305         msleep(10);
1306
1307         mutex_unlock(&dev->lock);
1308
1309         return 0;
1310 }
1311
1312 static int vidioc_s_frequency(struct file *file, void *priv,
1313                                 struct v4l2_frequency *f)
1314 {
1315         struct cx23885_fh *fh = priv;
1316         struct cx23885_dev *dev = fh->dev;
1317
1318         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1319                 return -EINVAL;
1320         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1321                 return -EINVAL;
1322
1323         return
1324                 cx23885_set_freq(dev, f);
1325 }
1326
1327 #ifdef CONFIG_VIDEO_ADV_DEBUG
1328 static int vidioc_g_register(struct file *file, void *fh,
1329                                 struct v4l2_register *reg)
1330 {
1331         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1332
1333         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1334                 return -EINVAL;
1335
1336         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1337
1338         return 0;
1339 }
1340
1341 static int vidioc_s_register(struct file *file, void *fh,
1342                                 struct v4l2_register *reg)
1343 {
1344         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1345
1346         if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
1347                 return -EINVAL;
1348
1349         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1350
1351         return 0;
1352 }
1353 #endif
1354
1355 /* ----------------------------------------------------------- */
1356
1357 static void cx23885_vid_timeout(unsigned long data)
1358 {
1359         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1360         struct cx23885_dmaqueue *q = &dev->vidq;
1361         struct cx23885_buffer *buf;
1362         unsigned long flags;
1363
1364         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1365
1366         cx_clear(VID_A_DMA_CTL, 0x11);
1367
1368         spin_lock_irqsave(&dev->slock, flags);
1369         while (!list_empty(&q->active)) {
1370                 buf = list_entry(q->active.next,
1371                         struct cx23885_buffer, vb.queue);
1372                 list_del(&buf->vb.queue);
1373                 buf->vb.state = VIDEOBUF_ERROR;
1374                 wake_up(&buf->vb.done);
1375                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1376                         dev->name, buf, buf->vb.i,
1377                         (unsigned long)buf->risc.dma);
1378         }
1379         cx23885_restart_video_queue(dev, q);
1380         spin_unlock_irqrestore(&dev->slock, flags);
1381 }
1382
1383 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1384 {
1385         u32 mask, count;
1386         int handled = 0;
1387
1388         mask   = cx_read(VID_A_INT_MSK);
1389         if (0 == (status & mask))
1390                 return handled;
1391         cx_write(VID_A_INT_STAT, status);
1392
1393         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1394         /* risc op code error */
1395         if (status & (1 << 16)) {
1396                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1397                         dev->name);
1398                 cx_clear(VID_A_DMA_CTL, 0x11);
1399                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1400         }
1401
1402         /* risc1 y */
1403         if (status & 0x01) {
1404                 spin_lock(&dev->slock);
1405                 count = cx_read(VID_A_GPCNT);
1406                 cx23885_video_wakeup(dev, &dev->vidq, count);
1407                 spin_unlock(&dev->slock);
1408                 handled++;
1409         }
1410         /* risc2 y */
1411         if (status & 0x10) {
1412                 dprintk(2, "stopper video\n");
1413                 spin_lock(&dev->slock);
1414                 cx23885_restart_video_queue(dev, &dev->vidq);
1415                 spin_unlock(&dev->slock);
1416                 handled++;
1417         }
1418
1419         return handled;
1420 }
1421
1422 /* ----------------------------------------------------------- */
1423 /* exported stuff                                              */
1424
1425 static const struct file_operations video_fops = {
1426         .owner         = THIS_MODULE,
1427         .open          = video_open,
1428         .release       = video_release,
1429         .read          = video_read,
1430         .poll          = video_poll,
1431         .mmap          = video_mmap,
1432         .ioctl         = video_ioctl2,
1433         .compat_ioctl  = v4l_compat_ioctl32,
1434         .llseek        = no_llseek,
1435 };
1436
1437 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1438         .vidioc_querycap      = vidioc_querycap,
1439         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1440         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1441         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1442         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1443         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1444         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1445         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1446         .vidioc_reqbufs       = vidioc_reqbufs,
1447         .vidioc_querybuf      = vidioc_querybuf,
1448         .vidioc_qbuf          = vidioc_qbuf,
1449         .vidioc_dqbuf         = vidioc_dqbuf,
1450         .vidioc_s_std         = vidioc_s_std,
1451         .vidioc_enum_input    = vidioc_enum_input,
1452         .vidioc_g_input       = vidioc_g_input,
1453         .vidioc_s_input       = vidioc_s_input,
1454         .vidioc_queryctrl     = vidioc_queryctrl,
1455         .vidioc_g_ctrl        = vidioc_g_ctrl,
1456         .vidioc_s_ctrl        = vidioc_s_ctrl,
1457         .vidioc_streamon      = vidioc_streamon,
1458         .vidioc_streamoff     = vidioc_streamoff,
1459 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1460         .vidiocgmbuf          = vidiocgmbuf,
1461 #endif
1462         .vidioc_g_tuner       = vidioc_g_tuner,
1463         .vidioc_s_tuner       = vidioc_s_tuner,
1464         .vidioc_g_frequency   = vidioc_g_frequency,
1465         .vidioc_s_frequency   = vidioc_s_frequency,
1466 #ifdef CONFIG_VIDEO_ADV_DEBUG
1467         .vidioc_g_register    = vidioc_g_register,
1468         .vidioc_s_register    = vidioc_s_register,
1469 #endif
1470 };
1471
1472 static struct video_device cx23885_vbi_template;
1473 static struct video_device cx23885_video_template = {
1474         .name                 = "cx23885-video",
1475         .fops                 = &video_fops,
1476         .minor                = -1,
1477         .ioctl_ops            = &video_ioctl_ops,
1478         .tvnorms              = CX23885_NORMS,
1479         .current_norm         = V4L2_STD_NTSC_M,
1480 };
1481
1482 static const struct file_operations radio_fops = {
1483         .owner         = THIS_MODULE,
1484         .open          = video_open,
1485         .release       = video_release,
1486         .ioctl         = video_ioctl2,
1487         .compat_ioctl  = v4l_compat_ioctl32,
1488         .llseek        = no_llseek,
1489 };
1490
1491
1492 void cx23885_video_unregister(struct cx23885_dev *dev)
1493 {
1494         dprintk(1, "%s()\n", __func__);
1495         cx_clear(PCI_INT_MSK, 1);
1496
1497         if (dev->video_dev) {
1498                 if (-1 != dev->video_dev->minor)
1499                         video_unregister_device(dev->video_dev);
1500                 else
1501                         video_device_release(dev->video_dev);
1502                 dev->video_dev = NULL;
1503
1504                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1505         }
1506 }
1507
1508 int cx23885_video_register(struct cx23885_dev *dev)
1509 {
1510         int err;
1511
1512         dprintk(1, "%s()\n", __func__);
1513         spin_lock_init(&dev->slock);
1514
1515         /* Initialize VBI template */
1516         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1517                 sizeof(cx23885_vbi_template));
1518         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1519
1520         dev->tvnorm = cx23885_video_template.current_norm;
1521
1522         /* init video dma queues */
1523         INIT_LIST_HEAD(&dev->vidq.active);
1524         INIT_LIST_HEAD(&dev->vidq.queued);
1525         dev->vidq.timeout.function = cx23885_vid_timeout;
1526         dev->vidq.timeout.data = (unsigned long)dev;
1527         init_timer(&dev->vidq.timeout);
1528         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1529                 VID_A_DMA_CTL, 0x11, 0x00);
1530
1531         /* Don't enable VBI yet */
1532         cx_set(PCI_INT_MSK, 1);
1533
1534
1535         /* register v4l devices */
1536         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1537                 &cx23885_video_template, "video");
1538         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1539                                     video_nr[dev->nr]);
1540         if (err < 0) {
1541                 printk(KERN_INFO "%s: can't register video device\n",
1542                         dev->name);
1543                 goto fail_unreg;
1544         }
1545         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1546                dev->name, dev->video_dev->minor & 0x1f);
1547         /* initial device configuration */
1548         mutex_lock(&dev->lock);
1549         cx23885_set_tvnorm(dev, dev->tvnorm);
1550         init_controls(dev);
1551         cx23885_video_mux(dev, 0);
1552         mutex_unlock(&dev->lock);
1553
1554         return 0;
1555
1556 fail_unreg:
1557         cx23885_video_unregister(dev);
1558         return err;
1559 }
1560