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 /* Must be sorted from low to high control ID! */
 248 static const u32 cx23885_user_ctrls[] = {
 249         V4L2_CID_USER_CLASS,
 250         V4L2_CID_BRIGHTNESS,
 251         V4L2_CID_CONTRAST,
 252         V4L2_CID_SATURATION,
 253         V4L2_CID_HUE,
 254         V4L2_CID_AUDIO_VOLUME,
 255         V4L2_CID_AUDIO_MUTE,
 256         0
 257 };
 258
 259 static const u32 *ctrl_classes[] = {
 260         cx23885_user_ctrls,
 261         NULL
 262 };
 263
 264 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 265                  struct cx23885_dmaqueue *q, u32 count)
 266 {
 267         struct cx23885_buffer *buf;
 268         int bc;
 269
 270         for (bc = 0;; bc++) {
 271                 if (list_empty(&q->active))
 272                         break;
 273                 buf = list_entry(q->active.next,
 274                                  struct cx23885_buffer, vb.queue);
 275
 276                 /* count comes from the hw and is is 16bit wide --
 277                  * this trick handles wrap-arounds correctly for
 278                  * up to 32767 buffers in flight... */
 279                 if ((s16) (count - buf->count) < 0)
 280                         break;
 281
 282                 do_gettimeofday(&buf->vb.ts);
 283                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 284                         count, buf->count);
 285                 buf->vb.state = VIDEOBUF_DONE;
 286                 list_del(&buf->vb.queue);
 287                 wake_up(&buf->vb.done);
 288         }
 289         if (list_empty(&q->active))
 290                 del_timer(&q->timeout);
 291         else
 292                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 293         if (bc != 1)
 294                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 295                         __func__, bc);
 296 }
 297
 298 static 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 static 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->parent  = &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 static 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
 354 /* ------------------------------------------------------------------- */
 355 /* resource management                                                 */
 356
 357 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 358         unsigned int bit)
 359 {
 360         dprintk(1, "%s()\n", __func__);
 361         if (fh->resources & bit)
 362                 /* have it already allocated */
 363                 return 1;
 364
 365         /* is it free? */
 366         mutex_lock(&dev->lock);
 367         if (dev->resources & bit) {
 368                 /* no, someone else uses it */
 369                 mutex_unlock(&dev->lock);
 370                 return 0;
 371         }
 372         /* it's free, grab it */
 373         fh->resources  |= bit;
 374         dev->resources |= bit;
 375         dprintk(1, "res: get %d\n", bit);
 376         mutex_unlock(&dev->lock);
 377         return 1;
 378 }
 379
 380 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 381 {
 382         return fh->resources & bit;
 383 }
 384
 385 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 386 {
 387         return dev->resources & bit;
 388 }
 389
 390 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 391         unsigned int bits)
 392 {
 393         BUG_ON((fh->resources & bits) != bits);
 394         dprintk(1, "%s()\n", __func__);
 395
 396         mutex_lock(&dev->lock);
 397         fh->resources  &= ~bits;
 398         dev->resources &= ~bits;
 399         dprintk(1, "res: put %d\n", bits);
 400         mutex_unlock(&dev->lock);
 401 }
 402
 403 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 404 {
 405         struct v4l2_routing route;
 406         memset(&route, 0, sizeof(route));
 407
 408         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 409                 __func__,
 410                 input, INPUT(input)->vmux,
 411                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 412                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 413         dev->input = input;
 414
 415         route.input = INPUT(input)->vmux;
 416
 417         /* Tell the internal A/V decoder */
 418         cx23885_call_i2c_clients(&dev->i2c_bus[2],
 419                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
 420
 421         return 0;
 422 }
 423
 424 /* ------------------------------------------------------------------ */
 425 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 426         unsigned int height, enum v4l2_field field)
 427 {
 428         dprintk(1, "%s()\n", __func__);
 429         return 0;
 430 }
 431
 432 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 433                            struct cx23885_dmaqueue *q,
 434                            struct cx23885_buffer *buf)
 435 {
 436         dprintk(1, "%s()\n", __func__);
 437
 438         /* setup fifo + format */
 439         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 440                                 buf->bpl, buf->risc.dma);
 441         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 442
 443         /* reset counter */
 444         cx_write(VID_A_GPCNT_CTL, 3);
 445         q->count = 1;
 446
 447         /* enable irq */
 448         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 449         cx_set(VID_A_INT_MSK, 0x000011);
 450
 451         /* start dma */
 452         cx_set(DEV_CNTRL2, (1<<5));
 453         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 454
 455         return 0;
 456 }
 457
 458
 459 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 460                                struct cx23885_dmaqueue *q)
 461 {
 462         struct cx23885_buffer *buf, *prev;
 463         struct list_head *item;
 464         dprintk(1, "%s()\n", __func__);
 465
 466         if (!list_empty(&q->active)) {
 467                 buf = list_entry(q->active.next, struct cx23885_buffer,
 468                         vb.queue);
 469                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 470                         buf, buf->vb.i);
 471                 cx23885_start_video_dma(dev, q, buf);
 472                 list_for_each(item, &q->active) {
 473                         buf = list_entry(item, struct cx23885_buffer,
 474                                 vb.queue);
 475                         buf->count    = q->count++;
 476                 }
 477                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 478                 return 0;
 479         }
 480
 481         prev = NULL;
 482         for (;;) {
 483                 if (list_empty(&q->queued))
 484                         return 0;
 485                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 486                         vb.queue);
 487                 if (NULL == prev) {
 488                         list_move_tail(&buf->vb.queue, &q->active);
 489                         cx23885_start_video_dma(dev, q, buf);
 490                         buf->vb.state = VIDEOBUF_ACTIVE;
 491                         buf->count    = q->count++;
 492                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 493                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 494                                 buf, buf->vb.i);
 495
 496                 } else if (prev->vb.width  == buf->vb.width  &&
 497                            prev->vb.height == buf->vb.height &&
 498                            prev->fmt       == buf->fmt) {
 499                         list_move_tail(&buf->vb.queue, &q->active);
 500                         buf->vb.state = VIDEOBUF_ACTIVE;
 501                         buf->count    = q->count++;
 502                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 503                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 504                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 505                                 buf, buf->vb.i);
 506                 } else {
 507                         return 0;
 508                 }
 509                 prev = buf;
 510         }
 511 }
 512
 513 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 514         unsigned int *size)
 515 {
 516         struct cx23885_fh *fh = q->priv_data;
 517
 518         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 519         if (0 == *count)
 520                 *count = 32;
 521         while (*size * *count > vid_limit * 1024 * 1024)
 522                 (*count)--;
 523         return 0;
 524 }
 525
 526 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 527                enum v4l2_field field)
 528 {
 529         struct cx23885_fh *fh  = q->priv_data;
 530         struct cx23885_dev *dev = fh->dev;
 531         struct cx23885_buffer *buf =
 532                 container_of(vb, struct cx23885_buffer, vb);
 533         int rc, init_buffer = 0;
 534         u32 line0_offset, line1_offset;
 535         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 536
 537         BUG_ON(NULL == fh->fmt);
 538         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 539             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 540                 return -EINVAL;
 541         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 542         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 543                 return -EINVAL;
 544
 545         if (buf->fmt       != fh->fmt    ||
 546             buf->vb.width  != fh->width  ||
 547             buf->vb.height != fh->height ||
 548             buf->vb.field  != field) {
 549                 buf->fmt       = fh->fmt;
 550                 buf->vb.width  = fh->width;
 551                 buf->vb.height = fh->height;
 552                 buf->vb.field  = field;
 553                 init_buffer = 1;
 554         }
 555
 556         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 557                 init_buffer = 1;
 558                 rc = videobuf_iolock(q, &buf->vb, NULL);
 559                 if (0 != rc)
 560                         goto fail;
 561         }
 562
 563         if (init_buffer) {
 564                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 565                 switch (buf->vb.field) {
 566                 case V4L2_FIELD_TOP:
 567                         cx23885_risc_buffer(dev->pci, &buf->risc,
 568                                          dma->sglist, 0, UNSET,
 569                                          buf->bpl, 0, buf->vb.height);
 570                         break;
 571                 case V4L2_FIELD_BOTTOM:
 572                         cx23885_risc_buffer(dev->pci, &buf->risc,
 573                                          dma->sglist, UNSET, 0,
 574                                          buf->bpl, 0, buf->vb.height);
 575                         break;
 576                 case V4L2_FIELD_INTERLACED:
 577                         if (dev->tvnorm & V4L2_STD_NTSC) {
 578                                 /* cx25840 transmits NTSC bottom field first */
 579                                 dprintk(1, "%s() Creating NTSC risc\n",
 580                                         __func__);
 581                                 line0_offset = buf->bpl;
 582                                 line1_offset = 0;
 583                         } else {
 584                                 /* All other formats are top field first */
 585                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 586                                         __func__);
 587                                 line0_offset = 0;
 588                                 line1_offset = buf->bpl;
 589                         }
 590                         cx23885_risc_buffer(dev->pci, &buf->risc,
 591                                         dma->sglist, line0_offset,
 592                                         line1_offset,
 593                                         buf->bpl, buf->bpl,
 594                                         buf->vb.height >> 1);
 595                         break;
 596                 case V4L2_FIELD_SEQ_TB:
 597                         cx23885_risc_buffer(dev->pci, &buf->risc,
 598                                          dma->sglist,
 599                                          0, buf->bpl * (buf->vb.height >> 1),
 600                                          buf->bpl, 0,
 601                                          buf->vb.height >> 1);
 602                         break;
 603                 case V4L2_FIELD_SEQ_BT:
 604                         cx23885_risc_buffer(dev->pci, &buf->risc,
 605                                          dma->sglist,
 606                                          buf->bpl * (buf->vb.height >> 1), 0,
 607                                          buf->bpl, 0,
 608                                          buf->vb.height >> 1);
 609                         break;
 610                 default:
 611                         BUG();
 612                 }
 613         }
 614         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 615                 buf, buf->vb.i,
 616                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 617                 (unsigned long)buf->risc.dma);
 618
 619         buf->vb.state = VIDEOBUF_PREPARED;
 620         return 0;
 621
 622  fail:
 623         cx23885_free_buffer(q, buf);
 624         return rc;
 625 }
 626
 627 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 628 {
 629         struct cx23885_buffer   *buf = container_of(vb,
 630                 struct cx23885_buffer, vb);
 631         struct cx23885_buffer   *prev;
 632         struct cx23885_fh       *fh   = vq->priv_data;
 633         struct cx23885_dev      *dev  = fh->dev;
 634         struct cx23885_dmaqueue *q    = &dev->vidq;
 635
 636         /* add jump to stopper */
 637         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 638         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 639         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 640
 641         if (!list_empty(&q->queued)) {
 642                 list_add_tail(&buf->vb.queue, &q->queued);
 643                 buf->vb.state = VIDEOBUF_QUEUED;
 644                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 645                         buf, buf->vb.i);
 646
 647         } else if (list_empty(&q->active)) {
 648                 list_add_tail(&buf->vb.queue, &q->active);
 649                 cx23885_start_video_dma(dev, q, buf);
 650                 buf->vb.state = VIDEOBUF_ACTIVE;
 651                 buf->count    = q->count++;
 652                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 653                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 654                         buf, buf->vb.i);
 655
 656         } else {
 657                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 658                         vb.queue);
 659                 if (prev->vb.width  == buf->vb.width  &&
 660                     prev->vb.height == buf->vb.height &&
 661                     prev->fmt       == buf->fmt) {
 662                         list_add_tail(&buf->vb.queue, &q->active);
 663                         buf->vb.state = VIDEOBUF_ACTIVE;
 664                         buf->count    = q->count++;
 665                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 666                         /* 64 bit bits 63-32 */
 667                         prev->risc.jmp[2] = cpu_to_le32(0);
 668                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 669                                 buf, buf->vb.i);
 670
 671                 } else {
 672                         list_add_tail(&buf->vb.queue, &q->queued);
 673                         buf->vb.state = VIDEOBUF_QUEUED;
 674                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 675                                 buf, buf->vb.i);
 676                 }
 677         }
 678 }
 679
 680 static void buffer_release(struct videobuf_queue *q,
 681         struct videobuf_buffer *vb)
 682 {
 683         struct cx23885_buffer *buf = container_of(vb,
 684                 struct cx23885_buffer, vb);
 685
 686         cx23885_free_buffer(q, buf);
 687 }
 688
 689 static struct videobuf_queue_ops cx23885_video_qops = {
 690         .buf_setup    = buffer_setup,
 691         .buf_prepare  = buffer_prepare,
 692         .buf_queue    = buffer_queue,
 693         .buf_release  = buffer_release,
 694 };
 695
 696 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 697 {
 698         switch (fh->type) {
 699         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 700                 return &fh->vidq;
 701         case V4L2_BUF_TYPE_VBI_CAPTURE:
 702                 return &fh->vbiq;
 703         default:
 704                 BUG();
 705                 return NULL;
 706         }
 707 }
 708
 709 static int get_resource(struct cx23885_fh *fh)
 710 {
 711         switch (fh->type) {
 712         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 713                 return RESOURCE_VIDEO;
 714         case V4L2_BUF_TYPE_VBI_CAPTURE:
 715                 return RESOURCE_VBI;
 716         default:
 717                 BUG();
 718                 return 0;
 719         }
 720 }
 721
 722 static int video_open(struct file *file)
 723 {
 724         int minor = video_devdata(file)->minor;
 725         struct cx23885_dev *h, *dev = NULL;
 726         struct cx23885_fh *fh;
 727         struct list_head *list;
 728         enum v4l2_buf_type type = 0;
 729         int radio = 0;
 730
 731         lock_kernel();
 732         list_for_each(list, &cx23885_devlist) {
 733                 h = list_entry(list, struct cx23885_dev, devlist);
 734                 if (h->video_dev &&
 735                     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                 unlock_kernel();
 752                 return -ENODEV;
 753         }
 754
 755         dprintk(1, "open minor=%d radio=%d type=%s\n",
 756                 minor, radio, v4l2_type_names[type]);
 757
 758         /* allocate + initialize per filehandle data */
 759         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 760         if (NULL == fh) {
 761                 unlock_kernel();
 762                 return -ENOMEM;
 763         }
 764         file->private_data = fh;
 765         fh->dev      = dev;
 766         fh->radio    = radio;
 767         fh->type     = type;
 768         fh->width    = 320;
 769         fh->height   = 240;
 770         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 771
 772         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 773                             &dev->pci->dev, &dev->slock,
 774                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 775                             V4L2_FIELD_INTERLACED,
 776                             sizeof(struct cx23885_buffer),
 777                             fh);
 778
 779         dprintk(1, "post videobuf_queue_init()\n");
 780
 781         unlock_kernel();
 782
 783         return 0;
 784 }
 785
 786 static ssize_t video_read(struct file *file, char __user *data,
 787         size_t count, loff_t *ppos)
 788 {
 789         struct cx23885_fh *fh = file->private_data;
 790
 791         switch (fh->type) {
 792         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 793                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 794                         return -EBUSY;
 795                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 796                                          file->f_flags & O_NONBLOCK);
 797         case V4L2_BUF_TYPE_VBI_CAPTURE:
 798                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 799                         return -EBUSY;
 800                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 801                                             file->f_flags & O_NONBLOCK);
 802         default:
 803                 BUG();
 804                 return 0;
 805         }
 806 }
 807
 808 static unsigned int video_poll(struct file *file,
 809         struct poll_table_struct *wait)
 810 {
 811         struct cx23885_fh *fh = file->private_data;
 812         struct cx23885_buffer *buf;
 813
 814         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 815                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 816                         return POLLERR;
 817                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 818         }
 819
 820         if (res_check(fh, RESOURCE_VIDEO)) {
 821                 /* streaming capture */
 822                 if (list_empty(&fh->vidq.stream))
 823                         return POLLERR;
 824                 buf = list_entry(fh->vidq.stream.next,
 825                         struct cx23885_buffer, vb.stream);
 826         } else {
 827                 /* read() capture */
 828                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 829                 if (NULL == buf)
 830                         return POLLERR;
 831         }
 832         poll_wait(file, &buf->vb.done, wait);
 833         if (buf->vb.state == VIDEOBUF_DONE ||
 834             buf->vb.state == VIDEOBUF_ERROR)
 835                 return POLLIN|POLLRDNORM;
 836         return 0;
 837 }
 838
 839 static int video_release(struct file *file)
 840 {
 841         struct cx23885_fh *fh = file->private_data;
 842         struct cx23885_dev *dev = fh->dev;
 843
 844         /* turn off overlay */
 845         if (res_check(fh, RESOURCE_OVERLAY)) {
 846                 /* FIXME */
 847                 res_free(dev, fh, RESOURCE_OVERLAY);
 848         }
 849
 850         /* stop video capture */
 851         if (res_check(fh, RESOURCE_VIDEO)) {
 852                 videobuf_queue_cancel(&fh->vidq);
 853                 res_free(dev, fh, RESOURCE_VIDEO);
 854         }
 855         if (fh->vidq.read_buf) {
 856                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 857                 kfree(fh->vidq.read_buf);
 858         }
 859
 860         /* stop vbi capture */
 861         if (res_check(fh, RESOURCE_VBI)) {
 862                 if (fh->vbiq.streaming)
 863                         videobuf_streamoff(&fh->vbiq);
 864                 if (fh->vbiq.reading)
 865                         videobuf_read_stop(&fh->vbiq);
 866                 res_free(dev, fh, RESOURCE_VBI);
 867         }
 868
 869         videobuf_mmap_free(&fh->vidq);
 870         file->private_data = NULL;
 871         kfree(fh);
 872
 873         /* We are not putting the tuner to sleep here on exit, because
 874          * we want to use the mpeg encoder in another session to capture
 875          * tuner video. Closing this will result in no video to the encoder.
 876          */
 877
 878         return 0;
 879 }
 880
 881 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 882 {
 883         struct cx23885_fh *fh = file->private_data;
 884
 885         return videobuf_mmap_mapper(get_queue(fh), vma);
 886 }
 887
 888 /* ------------------------------------------------------------------ */
 889 /* VIDEO CTRL IOCTLS                                                  */
 890
 891 static int cx23885_get_control(struct cx23885_dev *dev,
 892         struct v4l2_control *ctl)
 893 {
 894         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 895         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
 896         return 0;
 897 }
 898
 899 static int cx23885_set_control(struct cx23885_dev *dev,
 900         struct v4l2_control *ctl)
 901 {
 902         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 903                 " (disabled - no action)\n", __func__);
 904         return 0;
 905 }
 906
 907 static void init_controls(struct cx23885_dev *dev)
 908 {
 909         struct v4l2_control ctrl;
 910         int i;
 911
 912         for (i = 0; i < CX23885_CTLS; i++) {
 913                 ctrl.id = cx23885_ctls[i].v.id;
 914                 ctrl.value = cx23885_ctls[i].v.default_value;
 915
 916                 cx23885_set_control(dev, &ctrl);
 917         }
 918 }
 919
 920 /* ------------------------------------------------------------------ */
 921 /* VIDEO IOCTLS                                                       */
 922
 923 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 924         struct v4l2_format *f)
 925 {
 926         struct cx23885_fh *fh   = priv;
 927
 928         f->fmt.pix.width        = fh->width;
 929         f->fmt.pix.height       = fh->height;
 930         f->fmt.pix.field        = fh->vidq.field;
 931         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 932         f->fmt.pix.bytesperline =
 933                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 934         f->fmt.pix.sizeimage =
 935                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 936
 937         return 0;
 938 }
 939
 940 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 941         struct v4l2_format *f)
 942 {
 943         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 944         struct cx23885_fmt *fmt;
 945         enum v4l2_field   field;
 946         unsigned int      maxw, maxh;
 947
 948         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 949         if (NULL == fmt)
 950                 return -EINVAL;
 951
 952         field = f->fmt.pix.field;
 953         maxw  = norm_maxw(dev->tvnorm);
 954         maxh  = norm_maxh(dev->tvnorm);
 955
 956         if (V4L2_FIELD_ANY == field) {
 957                 field = (f->fmt.pix.height > maxh/2)
 958                         ? V4L2_FIELD_INTERLACED
 959                         : V4L2_FIELD_BOTTOM;
 960         }
 961
 962         switch (field) {
 963         case V4L2_FIELD_TOP:
 964         case V4L2_FIELD_BOTTOM:
 965                 maxh = maxh / 2;
 966                 break;
 967         case V4L2_FIELD_INTERLACED:
 968                 break;
 969         default:
 970                 return -EINVAL;
 971         }
 972
 973         f->fmt.pix.field = field;
 974         if (f->fmt.pix.height < 32)
 975                 f->fmt.pix.height = 32;
 976         if (f->fmt.pix.height > maxh)
 977                 f->fmt.pix.height = maxh;
 978         if (f->fmt.pix.width < 48)
 979                 f->fmt.pix.width = 48;
 980         if (f->fmt.pix.width > maxw)
 981                 f->fmt.pix.width = maxw;
 982         f->fmt.pix.width &= ~0x03;
 983         f->fmt.pix.bytesperline =
 984                 (f->fmt.pix.width * fmt->depth) >> 3;
 985         f->fmt.pix.sizeimage =
 986                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 987
 988         return 0;
 989 }
 990
 991 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 992         struct v4l2_format *f)
 993 {
 994         struct cx23885_fh *fh = priv;
 995         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 996         int err;
 997
 998         dprintk(2, "%s()\n", __func__);
 999         err = vidioc_try_fmt_vid_cap(file, priv, f);
1000
1001         if (0 != err)
1002                 return err;
1003         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1004         fh->width      = f->fmt.pix.width;
1005         fh->height     = f->fmt.pix.height;
1006         fh->vidq.field = f->fmt.pix.field;
1007         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1008                 fh->width, fh->height, fh->vidq.field);
1009         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1010         return 0;
1011 }
1012
1013 static int vidioc_querycap(struct file *file, void  *priv,
1014         struct v4l2_capability *cap)
1015 {
1016         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1017
1018         strcpy(cap->driver, "cx23885");
1019         strlcpy(cap->card, cx23885_boards[dev->board].name,
1020                 sizeof(cap->card));
1021         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1022         cap->version = CX23885_VERSION_CODE;
1023         cap->capabilities =
1024                 V4L2_CAP_VIDEO_CAPTURE |
1025                 V4L2_CAP_READWRITE     |
1026                 V4L2_CAP_STREAMING     |
1027                 V4L2_CAP_VBI_CAPTURE;
1028         if (UNSET != dev->tuner_type)
1029                 cap->capabilities |= V4L2_CAP_TUNER;
1030         return 0;
1031 }
1032
1033 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1034         struct v4l2_fmtdesc *f)
1035 {
1036         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1037                 return -EINVAL;
1038
1039         strlcpy(f->description, formats[f->index].name,
1040                 sizeof(f->description));
1041         f->pixelformat = formats[f->index].fourcc;
1042
1043         return 0;
1044 }
1045
1046 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1047 static int vidiocgmbuf(struct file *file, void *priv,
1048         struct video_mbuf *mbuf)
1049 {
1050         struct cx23885_fh *fh = priv;
1051         struct videobuf_queue *q;
1052         struct v4l2_requestbuffers req;
1053         unsigned int i;
1054         int err;
1055
1056         q = get_queue(fh);
1057         memset(&req, 0, sizeof(req));
1058         req.type   = q->type;
1059         req.count  = 8;
1060         req.memory = V4L2_MEMORY_MMAP;
1061         err = videobuf_reqbufs(q, &req);
1062         if (err < 0)
1063                 return err;
1064
1065         mbuf->frames = req.count;
1066         mbuf->size   = 0;
1067         for (i = 0; i < mbuf->frames; i++) {
1068                 mbuf->offsets[i]  = q->bufs[i]->boff;
1069                 mbuf->size       += q->bufs[i]->bsize;
1070         }
1071         return 0;
1072 }
1073 #endif
1074
1075 static int vidioc_reqbufs(struct file *file, void *priv,
1076         struct v4l2_requestbuffers *p)
1077 {
1078         struct cx23885_fh *fh = priv;
1079         return videobuf_reqbufs(get_queue(fh), p);
1080 }
1081
1082 static int vidioc_querybuf(struct file *file, void *priv,
1083         struct v4l2_buffer *p)
1084 {
1085         struct cx23885_fh *fh = priv;
1086         return videobuf_querybuf(get_queue(fh), p);
1087 }
1088
1089 static int vidioc_qbuf(struct file *file, void *priv,
1090         struct v4l2_buffer *p)
1091 {
1092         struct cx23885_fh *fh = priv;
1093         return videobuf_qbuf(get_queue(fh), p);
1094 }
1095
1096 static int vidioc_dqbuf(struct file *file, void *priv,
1097         struct v4l2_buffer *p)
1098 {
1099         struct cx23885_fh *fh = priv;
1100         return videobuf_dqbuf(get_queue(fh), p,
1101                                 file->f_flags & O_NONBLOCK);
1102 }
1103
1104 static int vidioc_streamon(struct file *file, void *priv,
1105         enum v4l2_buf_type i)
1106 {
1107         struct cx23885_fh *fh = priv;
1108         struct cx23885_dev *dev = fh->dev;
1109         dprintk(1, "%s()\n", __func__);
1110
1111         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1112                 return -EINVAL;
1113         if (unlikely(i != fh->type))
1114                 return -EINVAL;
1115
1116         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1117                 return -EBUSY;
1118         return videobuf_streamon(get_queue(fh));
1119 }
1120
1121 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1122 {
1123         struct cx23885_fh *fh = priv;
1124         struct cx23885_dev *dev = fh->dev;
1125         int err, res;
1126         dprintk(1, "%s()\n", __func__);
1127
1128         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1129                 return -EINVAL;
1130         if (i != fh->type)
1131                 return -EINVAL;
1132
1133         res = get_resource(fh);
1134         err = videobuf_streamoff(get_queue(fh));
1135         if (err < 0)
1136                 return err;
1137         res_free(dev, fh, res);
1138         return 0;
1139 }
1140
1141 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1142 {
1143         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1144         dprintk(1, "%s()\n", __func__);
1145
1146         mutex_lock(&dev->lock);
1147         cx23885_set_tvnorm(dev, *tvnorms);
1148         mutex_unlock(&dev->lock);
1149
1150         return 0;
1151 }
1152
1153 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1154 {
1155         static const char *iname[] = {
1156                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1157                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1158                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1159                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1160                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1161                 [CX23885_VMUX_TELEVISION] = "Television",
1162                 [CX23885_VMUX_CABLE]      = "Cable TV",
1163                 [CX23885_VMUX_DVB]        = "DVB",
1164                 [CX23885_VMUX_DEBUG]      = "for debug only",
1165         };
1166         unsigned int n;
1167         dprintk(1, "%s()\n", __func__);
1168
1169         n = i->index;
1170         if (n >= 4)
1171                 return -EINVAL;
1172
1173         if (0 == INPUT(n)->type)
1174                 return -EINVAL;
1175
1176         memset(i, 0, sizeof(*i));
1177         i->index = n;
1178         i->type  = V4L2_INPUT_TYPE_CAMERA;
1179         strcpy(i->name, iname[INPUT(n)->type]);
1180         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1181                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1182                 i->type = V4L2_INPUT_TYPE_TUNER;
1183                 i->std = CX23885_NORMS;
1184         return 0;
1185 }
1186
1187 static int vidioc_enum_input(struct file *file, void *priv,
1188                                 struct v4l2_input *i)
1189 {
1190         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1191         dprintk(1, "%s()\n", __func__);
1192         return cx23885_enum_input(dev, i);
1193 }
1194
1195 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1196 {
1197         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1198
1199         *i = dev->input;
1200         dprintk(1, "%s() returns %d\n", __func__, *i);
1201         return 0;
1202 }
1203
1204 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1205 {
1206         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1207
1208         dprintk(1, "%s(%d)\n", __func__, i);
1209
1210         if (i >= 4) {
1211                 dprintk(1, "%s() -EINVAL\n", __func__);
1212                 return -EINVAL;
1213         }
1214
1215         mutex_lock(&dev->lock);
1216         cx23885_video_mux(dev, i);
1217         mutex_unlock(&dev->lock);
1218         return 0;
1219 }
1220
1221 static int vidioc_queryctrl(struct file *file, void *priv,
1222                                 struct v4l2_queryctrl *qctrl)
1223 {
1224         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1225         if (unlikely(qctrl->id == 0))
1226                 return -EINVAL;
1227         return cx23885_ctrl_query(qctrl);
1228 }
1229
1230 static int vidioc_g_ctrl(struct file *file, void *priv,
1231                                 struct v4l2_control *ctl)
1232 {
1233         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1234
1235         return cx23885_get_control(dev, ctl);
1236 }
1237
1238 static int vidioc_s_ctrl(struct file *file, void *priv,
1239                                 struct v4l2_control *ctl)
1240 {
1241         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1242
1243         return cx23885_set_control(dev, ctl);
1244 }
1245
1246 static int vidioc_g_tuner(struct file *file, void *priv,
1247                                 struct v4l2_tuner *t)
1248 {
1249         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1250
1251         if (unlikely(UNSET == dev->tuner_type))
1252                 return -EINVAL;
1253         if (0 != t->index)
1254                 return -EINVAL;
1255
1256         strcpy(t->name, "Television");
1257         t->type       = V4L2_TUNER_ANALOG_TV;
1258         t->capability = V4L2_TUNER_CAP_NORM;
1259         t->rangehigh  = 0xffffffffUL;
1260         t->signal = 0xffff ; /* LOCKED */
1261         return 0;
1262 }
1263
1264 static int vidioc_s_tuner(struct file *file, void *priv,
1265                                 struct v4l2_tuner *t)
1266 {
1267         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1268
1269         if (UNSET == dev->tuner_type)
1270                 return -EINVAL;
1271         if (0 != t->index)
1272                 return -EINVAL;
1273         return 0;
1274 }
1275
1276 static int vidioc_g_frequency(struct file *file, void *priv,
1277                                 struct v4l2_frequency *f)
1278 {
1279         struct cx23885_fh *fh = priv;
1280         struct cx23885_dev *dev = fh->dev;
1281
1282         if (unlikely(UNSET == dev->tuner_type))
1283                 return -EINVAL;
1284
1285         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1286         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1287         f->frequency = dev->freq;
1288
1289         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1290
1291         return 0;
1292 }
1293
1294 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1295 {
1296         if (unlikely(UNSET == dev->tuner_type))
1297                 return -EINVAL;
1298         if (unlikely(f->tuner != 0))
1299                 return -EINVAL;
1300
1301         mutex_lock(&dev->lock);
1302         dev->freq = f->frequency;
1303
1304         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1305
1306         /* When changing channels it is required to reset TVAUDIO */
1307         msleep(10);
1308
1309         mutex_unlock(&dev->lock);
1310
1311         return 0;
1312 }
1313
1314 static int vidioc_s_frequency(struct file *file, void *priv,
1315                                 struct v4l2_frequency *f)
1316 {
1317         struct cx23885_fh *fh = priv;
1318         struct cx23885_dev *dev = fh->dev;
1319
1320         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1321                 return -EINVAL;
1322         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1323                 return -EINVAL;
1324
1325         return
1326                 cx23885_set_freq(dev, f);
1327 }
1328
1329 #ifdef CONFIG_VIDEO_ADV_DEBUG
1330 static int vidioc_g_register(struct file *file, void *fh,
1331                                 struct v4l2_dbg_register *reg)
1332 {
1333         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1334
1335         if (!v4l2_chip_match_host(&reg->match))
1336                 return -EINVAL;
1337
1338         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1339
1340         return 0;
1341 }
1342
1343 static int vidioc_s_register(struct file *file, void *fh,
1344                                 struct v4l2_dbg_register *reg)
1345 {
1346         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1347
1348         if (!v4l2_chip_match_host(&reg->match))
1349                 return -EINVAL;
1350
1351         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1352
1353         return 0;
1354 }
1355 #endif
1356
1357 /* ----------------------------------------------------------- */
1358
1359 static void cx23885_vid_timeout(unsigned long data)
1360 {
1361         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1362         struct cx23885_dmaqueue *q = &dev->vidq;
1363         struct cx23885_buffer *buf;
1364         unsigned long flags;
1365
1366         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1367
1368         cx_clear(VID_A_DMA_CTL, 0x11);
1369
1370         spin_lock_irqsave(&dev->slock, flags);
1371         while (!list_empty(&q->active)) {
1372                 buf = list_entry(q->active.next,
1373                         struct cx23885_buffer, vb.queue);
1374                 list_del(&buf->vb.queue);
1375                 buf->vb.state = VIDEOBUF_ERROR;
1376                 wake_up(&buf->vb.done);
1377                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1378                         dev->name, buf, buf->vb.i,
1379                         (unsigned long)buf->risc.dma);
1380         }
1381         cx23885_restart_video_queue(dev, q);
1382         spin_unlock_irqrestore(&dev->slock, flags);
1383 }
1384
1385 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1386 {
1387         u32 mask, count;
1388         int handled = 0;
1389
1390         mask   = cx_read(VID_A_INT_MSK);
1391         if (0 == (status & mask))
1392                 return handled;
1393         cx_write(VID_A_INT_STAT, status);
1394
1395         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1396         /* risc op code error */
1397         if (status & (1 << 16)) {
1398                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1399                         dev->name);
1400                 cx_clear(VID_A_DMA_CTL, 0x11);
1401                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1402         }
1403
1404         /* risc1 y */
1405         if (status & 0x01) {
1406                 spin_lock(&dev->slock);
1407                 count = cx_read(VID_A_GPCNT);
1408                 cx23885_video_wakeup(dev, &dev->vidq, count);
1409                 spin_unlock(&dev->slock);
1410                 handled++;
1411         }
1412         /* risc2 y */
1413         if (status & 0x10) {
1414                 dprintk(2, "stopper video\n");
1415                 spin_lock(&dev->slock);
1416                 cx23885_restart_video_queue(dev, &dev->vidq);
1417                 spin_unlock(&dev->slock);
1418                 handled++;
1419         }
1420
1421         return handled;
1422 }
1423
1424 /* ----------------------------------------------------------- */
1425 /* exported stuff                                              */
1426
1427 static const struct v4l2_file_operations video_fops = {
1428         .owner         = THIS_MODULE,
1429         .open          = video_open,
1430         .release       = video_release,
1431         .read          = video_read,
1432         .poll          = video_poll,
1433         .mmap          = video_mmap,
1434         .ioctl         = video_ioctl2,
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 v4l2_file_operations radio_fops = {
1483         .owner         = THIS_MODULE,
1484         .open          = video_open,
1485         .release       = video_release,
1486         .ioctl         = video_ioctl2,
1487 };
1488
1489
1490 void cx23885_video_unregister(struct cx23885_dev *dev)
1491 {
1492         dprintk(1, "%s()\n", __func__);
1493         cx_clear(PCI_INT_MSK, 1);
1494
1495         if (dev->video_dev) {
1496                 if (-1 != dev->video_dev->minor)
1497                         video_unregister_device(dev->video_dev);
1498                 else
1499                         video_device_release(dev->video_dev);
1500                 dev->video_dev = NULL;
1501
1502                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1503         }
1504 }
1505
1506 int cx23885_video_register(struct cx23885_dev *dev)
1507 {
1508         int err;
1509
1510         dprintk(1, "%s()\n", __func__);
1511         spin_lock_init(&dev->slock);
1512
1513         /* Initialize VBI template */
1514         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1515                 sizeof(cx23885_vbi_template));
1516         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1517
1518         dev->tvnorm = cx23885_video_template.current_norm;
1519
1520         /* init video dma queues */
1521         INIT_LIST_HEAD(&dev->vidq.active);
1522         INIT_LIST_HEAD(&dev->vidq.queued);
1523         dev->vidq.timeout.function = cx23885_vid_timeout;
1524         dev->vidq.timeout.data = (unsigned long)dev;
1525         init_timer(&dev->vidq.timeout);
1526         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1527                 VID_A_DMA_CTL, 0x11, 0x00);
1528
1529         /* Don't enable VBI yet */
1530         cx_set(PCI_INT_MSK, 1);
1531
1532
1533         /* register v4l devices */
1534         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1535                 &cx23885_video_template, "video");
1536         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1537                                     video_nr[dev->nr]);
1538         if (err < 0) {
1539                 printk(KERN_INFO "%s: can't register video device\n",
1540                         dev->name);
1541                 goto fail_unreg;
1542         }
1543         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1544                dev->name, dev->video_dev->num);
1545         /* initial device configuration */
1546         mutex_lock(&dev->lock);
1547         cx23885_set_tvnorm(dev, dev->tvnorm);
1548         init_controls(dev);
1549         cx23885_video_mux(dev, 0);
1550         mutex_unlock(&dev->lock);
1551
1552         return 0;
1553
1554 fail_unreg:
1555         cx23885_video_unregister(dev);
1556         return err;
1557 }
1558