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

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@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 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  39 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  40 MODULE_LICENSE("GPL");
  41
  42 /* ------------------------------------------------------------------ */
  43
  44 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  45 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  46 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  47
  48 module_param_array(video_nr, int, NULL, 0444);
  49 module_param_array(vbi_nr,   int, NULL, 0444);
  50 module_param_array(radio_nr, int, NULL, 0444);
  51
  52 MODULE_PARM_DESC(video_nr, "video device numbers");
  53 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  54 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  55
  56 static unsigned int video_debug;
  57 module_param(video_debug, int, 0644);
  58 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  59
  60 static unsigned int irq_debug;
  61 module_param(irq_debug, int, 0644);
  62 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  63
  64 static unsigned int vid_limit = 16;
  65 module_param(vid_limit, int, 0644);
  66 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  67
  68 #define dprintk(level, fmt, arg...)\
  69         do { if (video_debug >= level)\
  70                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  71         } while (0)
  72
  73 /* ------------------------------------------------------------------- */
  74 /* static data                                                         */
  75
  76 #define FORMAT_FLAGS_PACKED       0x01
  77
  78 static struct cx23885_fmt formats[] = {
  79         {
  80                 .name     = "8 bpp, gray",
  81                 .fourcc   = V4L2_PIX_FMT_GREY,
  82                 .depth    = 8,
  83                 .flags    = FORMAT_FLAGS_PACKED,
  84         }, {
  85                 .name     = "15 bpp RGB, le",
  86                 .fourcc   = V4L2_PIX_FMT_RGB555,
  87                 .depth    = 16,
  88                 .flags    = FORMAT_FLAGS_PACKED,
  89         }, {
  90                 .name     = "15 bpp RGB, be",
  91                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  92                 .depth    = 16,
  93                 .flags    = FORMAT_FLAGS_PACKED,
  94         }, {
  95                 .name     = "16 bpp RGB, le",
  96                 .fourcc   = V4L2_PIX_FMT_RGB565,
  97                 .depth    = 16,
  98                 .flags    = FORMAT_FLAGS_PACKED,
  99         }, {
 100                 .name     = "16 bpp RGB, be",
 101                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 102                 .depth    = 16,
 103                 .flags    = FORMAT_FLAGS_PACKED,
 104         }, {
 105                 .name     = "24 bpp RGB, le",
 106                 .fourcc   = V4L2_PIX_FMT_BGR24,
 107                 .depth    = 24,
 108                 .flags    = FORMAT_FLAGS_PACKED,
 109         }, {
 110                 .name     = "32 bpp RGB, le",
 111                 .fourcc   = V4L2_PIX_FMT_BGR32,
 112                 .depth    = 32,
 113                 .flags    = FORMAT_FLAGS_PACKED,
 114         }, {
 115                 .name     = "32 bpp RGB, be",
 116                 .fourcc   = V4L2_PIX_FMT_RGB32,
 117                 .depth    = 32,
 118                 .flags    = FORMAT_FLAGS_PACKED,
 119         }, {
 120                 .name     = "4:2:2, packed, YUYV",
 121                 .fourcc   = V4L2_PIX_FMT_YUYV,
 122                 .depth    = 16,
 123                 .flags    = FORMAT_FLAGS_PACKED,
 124         }, {
 125                 .name     = "4:2:2, packed, UYVY",
 126                 .fourcc   = V4L2_PIX_FMT_UYVY,
 127                 .depth    = 16,
 128                 .flags    = FORMAT_FLAGS_PACKED,
 129         },
 130 };
 131
 132 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 133 {
 134         unsigned int i;
 135
 136         for (i = 0; i < ARRAY_SIZE(formats); i++)
 137                 if (formats[i].fourcc == fourcc)
 138                         return formats+i;
 139
 140         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 141         return NULL;
 142 }
 143
 144 /* ------------------------------------------------------------------- */
 145
 146 static const struct v4l2_queryctrl no_ctl = {
 147         .name  = "42",
 148         .flags = V4L2_CTRL_FLAG_DISABLED,
 149 };
 150
 151 static struct cx23885_ctrl cx23885_ctls[] = {
 152         /* --- video --- */
 153         {
 154                 .v = {
 155                         .id            = V4L2_CID_BRIGHTNESS,
 156                         .name          = "Brightness",
 157                         .minimum       = 0x00,
 158                         .maximum       = 0xff,
 159                         .step          = 1,
 160                         .default_value = 0x7f,
 161                         .type          = V4L2_CTRL_TYPE_INTEGER,
 162                 },
 163                 .off                   = 128,
 164                 .reg                   = LUMA_CTRL,
 165                 .mask                  = 0x00ff,
 166                 .shift                 = 0,
 167         }, {
 168                 .v = {
 169                         .id            = V4L2_CID_CONTRAST,
 170                         .name          = "Contrast",
 171                         .minimum       = 0,
 172                         .maximum       = 0xff,
 173                         .step          = 1,
 174                         .default_value = 0x3f,
 175                         .type          = V4L2_CTRL_TYPE_INTEGER,
 176                 },
 177                 .off                   = 0,
 178                 .reg                   = LUMA_CTRL,
 179                 .mask                  = 0xff00,
 180                 .shift                 = 8,
 181         }, {
 182                 .v = {
 183                         .id            = V4L2_CID_HUE,
 184                         .name          = "Hue",
 185                         .minimum       = 0,
 186                         .maximum       = 0xff,
 187                         .step          = 1,
 188                         .default_value = 0x7f,
 189                         .type          = V4L2_CTRL_TYPE_INTEGER,
 190                 },
 191                 .off                   = 128,
 192                 .reg                   = CHROMA_CTRL,
 193                 .mask                  = 0xff0000,
 194                 .shift                 = 16,
 195         }, {
 196                 /* strictly, this only describes only U saturation.
 197                  * V saturation is handled specially through code.
 198                  */
 199                 .v = {
 200                         .id            = V4L2_CID_SATURATION,
 201                         .name          = "Saturation",
 202                         .minimum       = 0,
 203                         .maximum       = 0xff,
 204                         .step          = 1,
 205                         .default_value = 0x7f,
 206                         .type          = V4L2_CTRL_TYPE_INTEGER,
 207                 },
 208                 .off                   = 0,
 209                 .reg                   = CHROMA_CTRL,
 210                 .mask                  = 0x00ff,
 211                 .shift                 = 0,
 212         }, {
 213         /* --- audio --- */
 214                 .v = {
 215                         .id            = V4L2_CID_AUDIO_MUTE,
 216                         .name          = "Mute",
 217                         .minimum       = 0,
 218                         .maximum       = 1,
 219                         .default_value = 1,
 220                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 221                 },
 222                 .reg                   = PATH1_CTL1,
 223                 .mask                  = (0x1f << 24),
 224                 .shift                 = 24,
 225         }, {
 226                 .v = {
 227                         .id            = V4L2_CID_AUDIO_VOLUME,
 228                         .name          = "Volume",
 229                         .minimum       = 0,
 230                         .maximum       = 0x3f,
 231                         .step          = 1,
 232                         .default_value = 0x3f,
 233                         .type          = V4L2_CTRL_TYPE_INTEGER,
 234                 },
 235                 .reg                   = PATH1_VOL_CTL,
 236                 .mask                  = 0xff,
 237                 .shift                 = 0,
 238         }
 239 };
 240 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 241
 242 /* Must be sorted from low to high control ID! */
 243 static const u32 cx23885_user_ctrls[] = {
 244         V4L2_CID_USER_CLASS,
 245         V4L2_CID_BRIGHTNESS,
 246         V4L2_CID_CONTRAST,
 247         V4L2_CID_SATURATION,
 248         V4L2_CID_HUE,
 249         V4L2_CID_AUDIO_VOLUME,
 250         V4L2_CID_AUDIO_MUTE,
 251         0
 252 };
 253
 254 static const u32 *ctrl_classes[] = {
 255         cx23885_user_ctrls,
 256         NULL
 257 };
 258
 259 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 260                  struct cx23885_dmaqueue *q, u32 count)
 261 {
 262         struct cx23885_buffer *buf;
 263         int bc;
 264
 265         for (bc = 0;; bc++) {
 266                 if (list_empty(&q->active))
 267                         break;
 268                 buf = list_entry(q->active.next,
 269                                  struct cx23885_buffer, vb.queue);
 270
 271                 /* count comes from the hw and is is 16bit wide --
 272                  * this trick handles wrap-arounds correctly for
 273                  * up to 32767 buffers in flight... */
 274                 if ((s16) (count - buf->count) < 0)
 275                         break;
 276
 277                 do_gettimeofday(&buf->vb.ts);
 278                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 279                         count, buf->count);
 280                 buf->vb.state = VIDEOBUF_DONE;
 281                 list_del(&buf->vb.queue);
 282                 wake_up(&buf->vb.done);
 283         }
 284         if (list_empty(&q->active))
 285                 del_timer(&q->timeout);
 286         else
 287                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 288         if (bc != 1)
 289                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 290                         __func__, bc);
 291 }
 292
 293 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 294 {
 295         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 296                 __func__,
 297                 (unsigned int)norm,
 298                 v4l2_norm_to_name(norm));
 299
 300         dev->tvnorm = norm;
 301
 302         call_all(dev, tuner, s_std, norm);
 303
 304         return 0;
 305 }
 306
 307 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 308                                     struct pci_dev *pci,
 309                                     struct video_device *template,
 310                                     char *type)
 311 {
 312         struct video_device *vfd;
 313         dprintk(1, "%s()\n", __func__);
 314
 315         vfd = video_device_alloc();
 316         if (NULL == vfd)
 317                 return NULL;
 318         *vfd = *template;
 319         vfd->minor = -1;
 320         vfd->v4l2_dev = &dev->v4l2_dev;
 321         vfd->release = video_device_release;
 322         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 323                  dev->name, type, cx23885_boards[dev->board].name);
 324         return vfd;
 325 }
 326
 327 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 328 {
 329         int i;
 330
 331         if (qctrl->id < V4L2_CID_BASE ||
 332             qctrl->id >= V4L2_CID_LASTP1)
 333                 return -EINVAL;
 334         for (i = 0; i < CX23885_CTLS; i++)
 335                 if (cx23885_ctls[i].v.id == qctrl->id)
 336                         break;
 337         if (i == CX23885_CTLS) {
 338                 *qctrl = no_ctl;
 339                 return 0;
 340         }
 341         *qctrl = cx23885_ctls[i].v;
 342         return 0;
 343 }
 344
 345 /* ------------------------------------------------------------------- */
 346 /* resource management                                                 */
 347
 348 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 349         unsigned int bit)
 350 {
 351         dprintk(1, "%s()\n", __func__);
 352         if (fh->resources & bit)
 353                 /* have it already allocated */
 354                 return 1;
 355
 356         /* is it free? */
 357         mutex_lock(&dev->lock);
 358         if (dev->resources & bit) {
 359                 /* no, someone else uses it */
 360                 mutex_unlock(&dev->lock);
 361                 return 0;
 362         }
 363         /* it's free, grab it */
 364         fh->resources  |= bit;
 365         dev->resources |= bit;
 366         dprintk(1, "res: get %d\n", bit);
 367         mutex_unlock(&dev->lock);
 368         return 1;
 369 }
 370
 371 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 372 {
 373         return fh->resources & bit;
 374 }
 375
 376 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 377 {
 378         return dev->resources & bit;
 379 }
 380
 381 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 382         unsigned int bits)
 383 {
 384         BUG_ON((fh->resources & bits) != bits);
 385         dprintk(1, "%s()\n", __func__);
 386
 387         mutex_lock(&dev->lock);
 388         fh->resources  &= ~bits;
 389         dev->resources &= ~bits;
 390         dprintk(1, "res: put %d\n", bits);
 391         mutex_unlock(&dev->lock);
 392 }
 393
 394 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 395 {
 396         struct v4l2_routing route;
 397         memset(&route, 0, sizeof(route));
 398
 399         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 400                 __func__,
 401                 input, INPUT(input)->vmux,
 402                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 403                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 404         dev->input = input;
 405
 406         route.input = INPUT(input)->vmux;
 407
 408         /* Tell the internal A/V decoder */
 409         v4l2_subdev_call(dev->sd_cx25840, video, s_routing, &route);
 410
 411         return 0;
 412 }
 413
 414 /* ------------------------------------------------------------------ */
 415 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 416         unsigned int height, enum v4l2_field field)
 417 {
 418         dprintk(1, "%s()\n", __func__);
 419         return 0;
 420 }
 421
 422 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 423                            struct cx23885_dmaqueue *q,
 424                            struct cx23885_buffer *buf)
 425 {
 426         dprintk(1, "%s()\n", __func__);
 427
 428         /* setup fifo + format */
 429         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 430                                 buf->bpl, buf->risc.dma);
 431         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 432
 433         /* reset counter */
 434         cx_write(VID_A_GPCNT_CTL, 3);
 435         q->count = 1;
 436
 437         /* enable irq */
 438         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 439         cx_set(VID_A_INT_MSK, 0x000011);
 440
 441         /* start dma */
 442         cx_set(DEV_CNTRL2, (1<<5));
 443         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 444
 445         return 0;
 446 }
 447
 448
 449 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 450                                struct cx23885_dmaqueue *q)
 451 {
 452         struct cx23885_buffer *buf, *prev;
 453         struct list_head *item;
 454         dprintk(1, "%s()\n", __func__);
 455
 456         if (!list_empty(&q->active)) {
 457                 buf = list_entry(q->active.next, struct cx23885_buffer,
 458                         vb.queue);
 459                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 460                         buf, buf->vb.i);
 461                 cx23885_start_video_dma(dev, q, buf);
 462                 list_for_each(item, &q->active) {
 463                         buf = list_entry(item, struct cx23885_buffer,
 464                                 vb.queue);
 465                         buf->count    = q->count++;
 466                 }
 467                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 468                 return 0;
 469         }
 470
 471         prev = NULL;
 472         for (;;) {
 473                 if (list_empty(&q->queued))
 474                         return 0;
 475                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 476                         vb.queue);
 477                 if (NULL == prev) {
 478                         list_move_tail(&buf->vb.queue, &q->active);
 479                         cx23885_start_video_dma(dev, q, buf);
 480                         buf->vb.state = VIDEOBUF_ACTIVE;
 481                         buf->count    = q->count++;
 482                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 483                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 484                                 buf, buf->vb.i);
 485
 486                 } else if (prev->vb.width  == buf->vb.width  &&
 487                            prev->vb.height == buf->vb.height &&
 488                            prev->fmt       == buf->fmt) {
 489                         list_move_tail(&buf->vb.queue, &q->active);
 490                         buf->vb.state = VIDEOBUF_ACTIVE;
 491                         buf->count    = q->count++;
 492                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 493                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 494                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 495                                 buf, buf->vb.i);
 496                 } else {
 497                         return 0;
 498                 }
 499                 prev = buf;
 500         }
 501 }
 502
 503 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 504         unsigned int *size)
 505 {
 506         struct cx23885_fh *fh = q->priv_data;
 507
 508         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 509         if (0 == *count)
 510                 *count = 32;
 511         while (*size * *count > vid_limit * 1024 * 1024)
 512                 (*count)--;
 513         return 0;
 514 }
 515
 516 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 517                enum v4l2_field field)
 518 {
 519         struct cx23885_fh *fh  = q->priv_data;
 520         struct cx23885_dev *dev = fh->dev;
 521         struct cx23885_buffer *buf =
 522                 container_of(vb, struct cx23885_buffer, vb);
 523         int rc, init_buffer = 0;
 524         u32 line0_offset, line1_offset;
 525         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 526
 527         BUG_ON(NULL == fh->fmt);
 528         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 529             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 530                 return -EINVAL;
 531         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 532         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 533                 return -EINVAL;
 534
 535         if (buf->fmt       != fh->fmt    ||
 536             buf->vb.width  != fh->width  ||
 537             buf->vb.height != fh->height ||
 538             buf->vb.field  != field) {
 539                 buf->fmt       = fh->fmt;
 540                 buf->vb.width  = fh->width;
 541                 buf->vb.height = fh->height;
 542                 buf->vb.field  = field;
 543                 init_buffer = 1;
 544         }
 545
 546         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 547                 init_buffer = 1;
 548                 rc = videobuf_iolock(q, &buf->vb, NULL);
 549                 if (0 != rc)
 550                         goto fail;
 551         }
 552
 553         if (init_buffer) {
 554                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 555                 switch (buf->vb.field) {
 556                 case V4L2_FIELD_TOP:
 557                         cx23885_risc_buffer(dev->pci, &buf->risc,
 558                                          dma->sglist, 0, UNSET,
 559                                          buf->bpl, 0, buf->vb.height);
 560                         break;
 561                 case V4L2_FIELD_BOTTOM:
 562                         cx23885_risc_buffer(dev->pci, &buf->risc,
 563                                          dma->sglist, UNSET, 0,
 564                                          buf->bpl, 0, buf->vb.height);
 565                         break;
 566                 case V4L2_FIELD_INTERLACED:
 567                         if (dev->tvnorm & V4L2_STD_NTSC) {
 568                                 /* cx25840 transmits NTSC bottom field first */
 569                                 dprintk(1, "%s() Creating NTSC risc\n",
 570                                         __func__);
 571                                 line0_offset = buf->bpl;
 572                                 line1_offset = 0;
 573                         } else {
 574                                 /* All other formats are top field first */
 575                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 576                                         __func__);
 577                                 line0_offset = 0;
 578                                 line1_offset = buf->bpl;
 579                         }
 580                         cx23885_risc_buffer(dev->pci, &buf->risc,
 581                                         dma->sglist, line0_offset,
 582                                         line1_offset,
 583                                         buf->bpl, buf->bpl,
 584                                         buf->vb.height >> 1);
 585                         break;
 586                 case V4L2_FIELD_SEQ_TB:
 587                         cx23885_risc_buffer(dev->pci, &buf->risc,
 588                                          dma->sglist,
 589                                          0, buf->bpl * (buf->vb.height >> 1),
 590                                          buf->bpl, 0,
 591                                          buf->vb.height >> 1);
 592                         break;
 593                 case V4L2_FIELD_SEQ_BT:
 594                         cx23885_risc_buffer(dev->pci, &buf->risc,
 595                                          dma->sglist,
 596                                          buf->bpl * (buf->vb.height >> 1), 0,
 597                                          buf->bpl, 0,
 598                                          buf->vb.height >> 1);
 599                         break;
 600                 default:
 601                         BUG();
 602                 }
 603         }
 604         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 605                 buf, buf->vb.i,
 606                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 607                 (unsigned long)buf->risc.dma);
 608
 609         buf->vb.state = VIDEOBUF_PREPARED;
 610         return 0;
 611
 612  fail:
 613         cx23885_free_buffer(q, buf);
 614         return rc;
 615 }
 616
 617 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 618 {
 619         struct cx23885_buffer   *buf = container_of(vb,
 620                 struct cx23885_buffer, vb);
 621         struct cx23885_buffer   *prev;
 622         struct cx23885_fh       *fh   = vq->priv_data;
 623         struct cx23885_dev      *dev  = fh->dev;
 624         struct cx23885_dmaqueue *q    = &dev->vidq;
 625
 626         /* add jump to stopper */
 627         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 628         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 629         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 630
 631         if (!list_empty(&q->queued)) {
 632                 list_add_tail(&buf->vb.queue, &q->queued);
 633                 buf->vb.state = VIDEOBUF_QUEUED;
 634                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 635                         buf, buf->vb.i);
 636
 637         } else if (list_empty(&q->active)) {
 638                 list_add_tail(&buf->vb.queue, &q->active);
 639                 cx23885_start_video_dma(dev, q, buf);
 640                 buf->vb.state = VIDEOBUF_ACTIVE;
 641                 buf->count    = q->count++;
 642                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 643                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 644                         buf, buf->vb.i);
 645
 646         } else {
 647                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 648                         vb.queue);
 649                 if (prev->vb.width  == buf->vb.width  &&
 650                     prev->vb.height == buf->vb.height &&
 651                     prev->fmt       == buf->fmt) {
 652                         list_add_tail(&buf->vb.queue, &q->active);
 653                         buf->vb.state = VIDEOBUF_ACTIVE;
 654                         buf->count    = q->count++;
 655                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 656                         /* 64 bit bits 63-32 */
 657                         prev->risc.jmp[2] = cpu_to_le32(0);
 658                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 659                                 buf, buf->vb.i);
 660
 661                 } else {
 662                         list_add_tail(&buf->vb.queue, &q->queued);
 663                         buf->vb.state = VIDEOBUF_QUEUED;
 664                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 665                                 buf, buf->vb.i);
 666                 }
 667         }
 668 }
 669
 670 static void buffer_release(struct videobuf_queue *q,
 671         struct videobuf_buffer *vb)
 672 {
 673         struct cx23885_buffer *buf = container_of(vb,
 674                 struct cx23885_buffer, vb);
 675
 676         cx23885_free_buffer(q, buf);
 677 }
 678
 679 static struct videobuf_queue_ops cx23885_video_qops = {
 680         .buf_setup    = buffer_setup,
 681         .buf_prepare  = buffer_prepare,
 682         .buf_queue    = buffer_queue,
 683         .buf_release  = buffer_release,
 684 };
 685
 686 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 687 {
 688         switch (fh->type) {
 689         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 690                 return &fh->vidq;
 691         case V4L2_BUF_TYPE_VBI_CAPTURE:
 692                 return &fh->vbiq;
 693         default:
 694                 BUG();
 695                 return NULL;
 696         }
 697 }
 698
 699 static int get_resource(struct cx23885_fh *fh)
 700 {
 701         switch (fh->type) {
 702         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 703                 return RESOURCE_VIDEO;
 704         case V4L2_BUF_TYPE_VBI_CAPTURE:
 705                 return RESOURCE_VBI;
 706         default:
 707                 BUG();
 708                 return 0;
 709         }
 710 }
 711
 712 static int video_open(struct file *file)
 713 {
 714         int minor = video_devdata(file)->minor;
 715         struct cx23885_dev *h, *dev = NULL;
 716         struct cx23885_fh *fh;
 717         struct list_head *list;
 718         enum v4l2_buf_type type = 0;
 719         int radio = 0;
 720
 721         lock_kernel();
 722         list_for_each(list, &cx23885_devlist) {
 723                 h = list_entry(list, struct cx23885_dev, devlist);
 724                 if (h->video_dev &&
 725                     h->video_dev->minor == minor) {
 726                         dev  = h;
 727                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 728                 }
 729                 if (h->vbi_dev &&
 730                     h->vbi_dev->minor == minor) {
 731                         dev  = h;
 732                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 733                 }
 734                 if (h->radio_dev &&
 735                     h->radio_dev->minor == minor) {
 736                         radio = 1;
 737                         dev   = h;
 738                 }
 739         }
 740         if (NULL == dev) {
 741                 unlock_kernel();
 742                 return -ENODEV;
 743         }
 744
 745         dprintk(1, "open minor=%d radio=%d type=%s\n",
 746                 minor, radio, v4l2_type_names[type]);
 747
 748         /* allocate + initialize per filehandle data */
 749         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 750         if (NULL == fh) {
 751                 unlock_kernel();
 752                 return -ENOMEM;
 753         }
 754         file->private_data = fh;
 755         fh->dev      = dev;
 756         fh->radio    = radio;
 757         fh->type     = type;
 758         fh->width    = 320;
 759         fh->height   = 240;
 760         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 761
 762         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 763                             &dev->pci->dev, &dev->slock,
 764                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 765                             V4L2_FIELD_INTERLACED,
 766                             sizeof(struct cx23885_buffer),
 767                             fh);
 768
 769         dprintk(1, "post videobuf_queue_init()\n");
 770
 771         unlock_kernel();
 772
 773         return 0;
 774 }
 775
 776 static ssize_t video_read(struct file *file, char __user *data,
 777         size_t count, loff_t *ppos)
 778 {
 779         struct cx23885_fh *fh = file->private_data;
 780
 781         switch (fh->type) {
 782         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 783                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 784                         return -EBUSY;
 785                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 786                                          file->f_flags & O_NONBLOCK);
 787         case V4L2_BUF_TYPE_VBI_CAPTURE:
 788                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 789                         return -EBUSY;
 790                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 791                                             file->f_flags & O_NONBLOCK);
 792         default:
 793                 BUG();
 794                 return 0;
 795         }
 796 }
 797
 798 static unsigned int video_poll(struct file *file,
 799         struct poll_table_struct *wait)
 800 {
 801         struct cx23885_fh *fh = file->private_data;
 802         struct cx23885_buffer *buf;
 803
 804         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 805                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 806                         return POLLERR;
 807                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 808         }
 809
 810         if (res_check(fh, RESOURCE_VIDEO)) {
 811                 /* streaming capture */
 812                 if (list_empty(&fh->vidq.stream))
 813                         return POLLERR;
 814                 buf = list_entry(fh->vidq.stream.next,
 815                         struct cx23885_buffer, vb.stream);
 816         } else {
 817                 /* read() capture */
 818                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 819                 if (NULL == buf)
 820                         return POLLERR;
 821         }
 822         poll_wait(file, &buf->vb.done, wait);
 823         if (buf->vb.state == VIDEOBUF_DONE ||
 824             buf->vb.state == VIDEOBUF_ERROR)
 825                 return POLLIN|POLLRDNORM;
 826         return 0;
 827 }
 828
 829 static int video_release(struct file *file)
 830 {
 831         struct cx23885_fh *fh = file->private_data;
 832         struct cx23885_dev *dev = fh->dev;
 833
 834         /* turn off overlay */
 835         if (res_check(fh, RESOURCE_OVERLAY)) {
 836                 /* FIXME */
 837                 res_free(dev, fh, RESOURCE_OVERLAY);
 838         }
 839
 840         /* stop video capture */
 841         if (res_check(fh, RESOURCE_VIDEO)) {
 842                 videobuf_queue_cancel(&fh->vidq);
 843                 res_free(dev, fh, RESOURCE_VIDEO);
 844         }
 845         if (fh->vidq.read_buf) {
 846                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 847                 kfree(fh->vidq.read_buf);
 848         }
 849
 850         /* stop vbi capture */
 851         if (res_check(fh, RESOURCE_VBI)) {
 852                 if (fh->vbiq.streaming)
 853                         videobuf_streamoff(&fh->vbiq);
 854                 if (fh->vbiq.reading)
 855                         videobuf_read_stop(&fh->vbiq);
 856                 res_free(dev, fh, RESOURCE_VBI);
 857         }
 858
 859         videobuf_mmap_free(&fh->vidq);
 860         file->private_data = NULL;
 861         kfree(fh);
 862
 863         /* We are not putting the tuner to sleep here on exit, because
 864          * we want to use the mpeg encoder in another session to capture
 865          * tuner video. Closing this will result in no video to the encoder.
 866          */
 867
 868         return 0;
 869 }
 870
 871 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 872 {
 873         struct cx23885_fh *fh = file->private_data;
 874
 875         return videobuf_mmap_mapper(get_queue(fh), vma);
 876 }
 877
 878 /* ------------------------------------------------------------------ */
 879 /* VIDEO CTRL IOCTLS                                                  */
 880
 881 static int cx23885_get_control(struct cx23885_dev *dev,
 882         struct v4l2_control *ctl)
 883 {
 884         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 885         call_all(dev, core, g_ctrl, ctl);
 886         return 0;
 887 }
 888
 889 static int cx23885_set_control(struct cx23885_dev *dev,
 890         struct v4l2_control *ctl)
 891 {
 892         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 893                 " (disabled - no action)\n", __func__);
 894         return 0;
 895 }
 896
 897 static void init_controls(struct cx23885_dev *dev)
 898 {
 899         struct v4l2_control ctrl;
 900         int i;
 901
 902         for (i = 0; i < CX23885_CTLS; i++) {
 903                 ctrl.id = cx23885_ctls[i].v.id;
 904                 ctrl.value = cx23885_ctls[i].v.default_value;
 905
 906                 cx23885_set_control(dev, &ctrl);
 907         }
 908 }
 909
 910 /* ------------------------------------------------------------------ */
 911 /* VIDEO IOCTLS                                                       */
 912
 913 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 914         struct v4l2_format *f)
 915 {
 916         struct cx23885_fh *fh   = priv;
 917
 918         f->fmt.pix.width        = fh->width;
 919         f->fmt.pix.height       = fh->height;
 920         f->fmt.pix.field        = fh->vidq.field;
 921         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 922         f->fmt.pix.bytesperline =
 923                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 924         f->fmt.pix.sizeimage =
 925                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 926
 927         return 0;
 928 }
 929
 930 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 931         struct v4l2_format *f)
 932 {
 933         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 934         struct cx23885_fmt *fmt;
 935         enum v4l2_field   field;
 936         unsigned int      maxw, maxh;
 937
 938         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 939         if (NULL == fmt)
 940                 return -EINVAL;
 941
 942         field = f->fmt.pix.field;
 943         maxw  = norm_maxw(dev->tvnorm);
 944         maxh  = norm_maxh(dev->tvnorm);
 945
 946         if (V4L2_FIELD_ANY == field) {
 947                 field = (f->fmt.pix.height > maxh/2)
 948                         ? V4L2_FIELD_INTERLACED
 949                         : V4L2_FIELD_BOTTOM;
 950         }
 951
 952         switch (field) {
 953         case V4L2_FIELD_TOP:
 954         case V4L2_FIELD_BOTTOM:
 955                 maxh = maxh / 2;
 956                 break;
 957         case V4L2_FIELD_INTERLACED:
 958                 break;
 959         default:
 960                 return -EINVAL;
 961         }
 962
 963         f->fmt.pix.field = field;
 964         if (f->fmt.pix.height < 32)
 965                 f->fmt.pix.height = 32;
 966         if (f->fmt.pix.height > maxh)
 967                 f->fmt.pix.height = maxh;
 968         if (f->fmt.pix.width < 48)
 969                 f->fmt.pix.width = 48;
 970         if (f->fmt.pix.width > maxw)
 971                 f->fmt.pix.width = maxw;
 972         f->fmt.pix.width &= ~0x03;
 973         f->fmt.pix.bytesperline =
 974                 (f->fmt.pix.width * fmt->depth) >> 3;
 975         f->fmt.pix.sizeimage =
 976                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 977
 978         return 0;
 979 }
 980
 981 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 982         struct v4l2_format *f)
 983 {
 984         struct cx23885_fh *fh = priv;
 985         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 986         int err;
 987
 988         dprintk(2, "%s()\n", __func__);
 989         err = vidioc_try_fmt_vid_cap(file, priv, f);
 990
 991         if (0 != err)
 992                 return err;
 993         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 994         fh->width      = f->fmt.pix.width;
 995         fh->height     = f->fmt.pix.height;
 996         fh->vidq.field = f->fmt.pix.field;
 997         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
 998                 fh->width, fh->height, fh->vidq.field);
 999         call_all(dev, video, s_fmt, f);
1000         return 0;
1001 }
1002
1003 static int vidioc_querycap(struct file *file, void  *priv,
1004         struct v4l2_capability *cap)
1005 {
1006         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1007
1008         strcpy(cap->driver, "cx23885");
1009         strlcpy(cap->card, cx23885_boards[dev->board].name,
1010                 sizeof(cap->card));
1011         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1012         cap->version = CX23885_VERSION_CODE;
1013         cap->capabilities =
1014                 V4L2_CAP_VIDEO_CAPTURE |
1015                 V4L2_CAP_READWRITE     |
1016                 V4L2_CAP_STREAMING     |
1017                 V4L2_CAP_VBI_CAPTURE;
1018         if (UNSET != dev->tuner_type)
1019                 cap->capabilities |= V4L2_CAP_TUNER;
1020         return 0;
1021 }
1022
1023 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1024         struct v4l2_fmtdesc *f)
1025 {
1026         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1027                 return -EINVAL;
1028
1029         strlcpy(f->description, formats[f->index].name,
1030                 sizeof(f->description));
1031         f->pixelformat = formats[f->index].fourcc;
1032
1033         return 0;
1034 }
1035
1036 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1037 static int vidiocgmbuf(struct file *file, void *priv,
1038         struct video_mbuf *mbuf)
1039 {
1040         struct cx23885_fh *fh = priv;
1041         struct videobuf_queue *q;
1042         struct v4l2_requestbuffers req;
1043         unsigned int i;
1044         int err;
1045
1046         q = get_queue(fh);
1047         memset(&req, 0, sizeof(req));
1048         req.type   = q->type;
1049         req.count  = 8;
1050         req.memory = V4L2_MEMORY_MMAP;
1051         err = videobuf_reqbufs(q, &req);
1052         if (err < 0)
1053                 return err;
1054
1055         mbuf->frames = req.count;
1056         mbuf->size   = 0;
1057         for (i = 0; i < mbuf->frames; i++) {
1058                 mbuf->offsets[i]  = q->bufs[i]->boff;
1059                 mbuf->size       += q->bufs[i]->bsize;
1060         }
1061         return 0;
1062 }
1063 #endif
1064
1065 static int vidioc_reqbufs(struct file *file, void *priv,
1066         struct v4l2_requestbuffers *p)
1067 {
1068         struct cx23885_fh *fh = priv;
1069         return videobuf_reqbufs(get_queue(fh), p);
1070 }
1071
1072 static int vidioc_querybuf(struct file *file, void *priv,
1073         struct v4l2_buffer *p)
1074 {
1075         struct cx23885_fh *fh = priv;
1076         return videobuf_querybuf(get_queue(fh), p);
1077 }
1078
1079 static int vidioc_qbuf(struct file *file, void *priv,
1080         struct v4l2_buffer *p)
1081 {
1082         struct cx23885_fh *fh = priv;
1083         return videobuf_qbuf(get_queue(fh), p);
1084 }
1085
1086 static int vidioc_dqbuf(struct file *file, void *priv,
1087         struct v4l2_buffer *p)
1088 {
1089         struct cx23885_fh *fh = priv;
1090         return videobuf_dqbuf(get_queue(fh), p,
1091                                 file->f_flags & O_NONBLOCK);
1092 }
1093
1094 static int vidioc_streamon(struct file *file, void *priv,
1095         enum v4l2_buf_type i)
1096 {
1097         struct cx23885_fh *fh = priv;
1098         struct cx23885_dev *dev = fh->dev;
1099         dprintk(1, "%s()\n", __func__);
1100
1101         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1102                 return -EINVAL;
1103         if (unlikely(i != fh->type))
1104                 return -EINVAL;
1105
1106         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1107                 return -EBUSY;
1108         return videobuf_streamon(get_queue(fh));
1109 }
1110
1111 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1112 {
1113         struct cx23885_fh *fh = priv;
1114         struct cx23885_dev *dev = fh->dev;
1115         int err, res;
1116         dprintk(1, "%s()\n", __func__);
1117
1118         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1119                 return -EINVAL;
1120         if (i != fh->type)
1121                 return -EINVAL;
1122
1123         res = get_resource(fh);
1124         err = videobuf_streamoff(get_queue(fh));
1125         if (err < 0)
1126                 return err;
1127         res_free(dev, fh, res);
1128         return 0;
1129 }
1130
1131 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1132 {
1133         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1134         dprintk(1, "%s()\n", __func__);
1135
1136         mutex_lock(&dev->lock);
1137         cx23885_set_tvnorm(dev, *tvnorms);
1138         mutex_unlock(&dev->lock);
1139
1140         return 0;
1141 }
1142
1143 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1144 {
1145         static const char *iname[] = {
1146                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1147                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1148                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1149                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1150                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1151                 [CX23885_VMUX_TELEVISION] = "Television",
1152                 [CX23885_VMUX_CABLE]      = "Cable TV",
1153                 [CX23885_VMUX_DVB]        = "DVB",
1154                 [CX23885_VMUX_DEBUG]      = "for debug only",
1155         };
1156         unsigned int n;
1157         dprintk(1, "%s()\n", __func__);
1158
1159         n = i->index;
1160         if (n >= 4)
1161                 return -EINVAL;
1162
1163         if (0 == INPUT(n)->type)
1164                 return -EINVAL;
1165
1166         memset(i, 0, sizeof(*i));
1167         i->index = n;
1168         i->type  = V4L2_INPUT_TYPE_CAMERA;
1169         strcpy(i->name, iname[INPUT(n)->type]);
1170         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1171                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1172                 i->type = V4L2_INPUT_TYPE_TUNER;
1173                 i->std = CX23885_NORMS;
1174         return 0;
1175 }
1176
1177 static int vidioc_enum_input(struct file *file, void *priv,
1178                                 struct v4l2_input *i)
1179 {
1180         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1181         dprintk(1, "%s()\n", __func__);
1182         return cx23885_enum_input(dev, i);
1183 }
1184
1185 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1186 {
1187         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1188
1189         *i = dev->input;
1190         dprintk(1, "%s() returns %d\n", __func__, *i);
1191         return 0;
1192 }
1193
1194 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1195 {
1196         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1197
1198         dprintk(1, "%s(%d)\n", __func__, i);
1199
1200         if (i >= 4) {
1201                 dprintk(1, "%s() -EINVAL\n", __func__);
1202                 return -EINVAL;
1203         }
1204
1205         mutex_lock(&dev->lock);
1206         cx23885_video_mux(dev, i);
1207         mutex_unlock(&dev->lock);
1208         return 0;
1209 }
1210
1211 static int vidioc_queryctrl(struct file *file, void *priv,
1212                                 struct v4l2_queryctrl *qctrl)
1213 {
1214         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1215         if (unlikely(qctrl->id == 0))
1216                 return -EINVAL;
1217         return cx23885_ctrl_query(qctrl);
1218 }
1219
1220 static int vidioc_g_ctrl(struct file *file, void *priv,
1221                                 struct v4l2_control *ctl)
1222 {
1223         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1224
1225         return cx23885_get_control(dev, ctl);
1226 }
1227
1228 static int vidioc_s_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_set_control(dev, ctl);
1234 }
1235
1236 static int vidioc_g_tuner(struct file *file, void *priv,
1237                                 struct v4l2_tuner *t)
1238 {
1239         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1240
1241         if (unlikely(UNSET == dev->tuner_type))
1242                 return -EINVAL;
1243         if (0 != t->index)
1244                 return -EINVAL;
1245
1246         strcpy(t->name, "Television");
1247         t->type       = V4L2_TUNER_ANALOG_TV;
1248         t->capability = V4L2_TUNER_CAP_NORM;
1249         t->rangehigh  = 0xffffffffUL;
1250         t->signal = 0xffff ; /* LOCKED */
1251         return 0;
1252 }
1253
1254 static int vidioc_s_tuner(struct file *file, void *priv,
1255                                 struct v4l2_tuner *t)
1256 {
1257         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1258
1259         if (UNSET == dev->tuner_type)
1260                 return -EINVAL;
1261         if (0 != t->index)
1262                 return -EINVAL;
1263         return 0;
1264 }
1265
1266 static int vidioc_g_frequency(struct file *file, void *priv,
1267                                 struct v4l2_frequency *f)
1268 {
1269         struct cx23885_fh *fh = priv;
1270         struct cx23885_dev *dev = fh->dev;
1271
1272         if (unlikely(UNSET == dev->tuner_type))
1273                 return -EINVAL;
1274
1275         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1276         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1277         f->frequency = dev->freq;
1278
1279         call_all(dev, tuner, g_frequency, f);
1280
1281         return 0;
1282 }
1283
1284 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1285 {
1286         if (unlikely(UNSET == dev->tuner_type))
1287                 return -EINVAL;
1288         if (unlikely(f->tuner != 0))
1289                 return -EINVAL;
1290
1291         mutex_lock(&dev->lock);
1292         dev->freq = f->frequency;
1293
1294         call_all(dev, tuner, s_frequency, f);
1295
1296         /* When changing channels it is required to reset TVAUDIO */
1297         msleep(10);
1298
1299         mutex_unlock(&dev->lock);
1300
1301         return 0;
1302 }
1303
1304 static int vidioc_s_frequency(struct file *file, void *priv,
1305                                 struct v4l2_frequency *f)
1306 {
1307         struct cx23885_fh *fh = priv;
1308         struct cx23885_dev *dev = fh->dev;
1309
1310         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1311                 return -EINVAL;
1312         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1313                 return -EINVAL;
1314
1315         return
1316                 cx23885_set_freq(dev, f);
1317 }
1318
1319 #ifdef CONFIG_VIDEO_ADV_DEBUG
1320 static int vidioc_g_register(struct file *file, void *fh,
1321                                 struct v4l2_dbg_register *reg)
1322 {
1323         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1324
1325         if (!v4l2_chip_match_host(&reg->match))
1326                 return -EINVAL;
1327
1328         call_all(dev, core, g_register, reg);
1329
1330         return 0;
1331 }
1332
1333 static int vidioc_s_register(struct file *file, void *fh,
1334                                 struct v4l2_dbg_register *reg)
1335 {
1336         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1337
1338         if (!v4l2_chip_match_host(&reg->match))
1339                 return -EINVAL;
1340
1341         call_all(dev, core, s_register, reg);
1342
1343         return 0;
1344 }
1345 #endif
1346
1347 /* ----------------------------------------------------------- */
1348
1349 static void cx23885_vid_timeout(unsigned long data)
1350 {
1351         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1352         struct cx23885_dmaqueue *q = &dev->vidq;
1353         struct cx23885_buffer *buf;
1354         unsigned long flags;
1355
1356         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1357
1358         cx_clear(VID_A_DMA_CTL, 0x11);
1359
1360         spin_lock_irqsave(&dev->slock, flags);
1361         while (!list_empty(&q->active)) {
1362                 buf = list_entry(q->active.next,
1363                         struct cx23885_buffer, vb.queue);
1364                 list_del(&buf->vb.queue);
1365                 buf->vb.state = VIDEOBUF_ERROR;
1366                 wake_up(&buf->vb.done);
1367                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1368                         dev->name, buf, buf->vb.i,
1369                         (unsigned long)buf->risc.dma);
1370         }
1371         cx23885_restart_video_queue(dev, q);
1372         spin_unlock_irqrestore(&dev->slock, flags);
1373 }
1374
1375 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1376 {
1377         u32 mask, count;
1378         int handled = 0;
1379
1380         mask   = cx_read(VID_A_INT_MSK);
1381         if (0 == (status & mask))
1382                 return handled;
1383         cx_write(VID_A_INT_STAT, status);
1384
1385         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1386         /* risc op code error */
1387         if (status & (1 << 16)) {
1388                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1389                         dev->name);
1390                 cx_clear(VID_A_DMA_CTL, 0x11);
1391                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1392         }
1393
1394         /* risc1 y */
1395         if (status & 0x01) {
1396                 spin_lock(&dev->slock);
1397                 count = cx_read(VID_A_GPCNT);
1398                 cx23885_video_wakeup(dev, &dev->vidq, count);
1399                 spin_unlock(&dev->slock);
1400                 handled++;
1401         }
1402         /* risc2 y */
1403         if (status & 0x10) {
1404                 dprintk(2, "stopper video\n");
1405                 spin_lock(&dev->slock);
1406                 cx23885_restart_video_queue(dev, &dev->vidq);
1407                 spin_unlock(&dev->slock);
1408                 handled++;
1409         }
1410
1411         return handled;
1412 }
1413
1414 /* ----------------------------------------------------------- */
1415 /* exported stuff                                              */
1416
1417 static const struct v4l2_file_operations video_fops = {
1418         .owner         = THIS_MODULE,
1419         .open          = video_open,
1420         .release       = video_release,
1421         .read          = video_read,
1422         .poll          = video_poll,
1423         .mmap          = video_mmap,
1424         .ioctl         = video_ioctl2,
1425 };
1426
1427 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1428         .vidioc_querycap      = vidioc_querycap,
1429         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1430         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1431         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1432         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1433         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1434         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1435         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1436         .vidioc_reqbufs       = vidioc_reqbufs,
1437         .vidioc_querybuf      = vidioc_querybuf,
1438         .vidioc_qbuf          = vidioc_qbuf,
1439         .vidioc_dqbuf         = vidioc_dqbuf,
1440         .vidioc_s_std         = vidioc_s_std,
1441         .vidioc_enum_input    = vidioc_enum_input,
1442         .vidioc_g_input       = vidioc_g_input,
1443         .vidioc_s_input       = vidioc_s_input,
1444         .vidioc_queryctrl     = vidioc_queryctrl,
1445         .vidioc_g_ctrl        = vidioc_g_ctrl,
1446         .vidioc_s_ctrl        = vidioc_s_ctrl,
1447         .vidioc_streamon      = vidioc_streamon,
1448         .vidioc_streamoff     = vidioc_streamoff,
1449 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1450         .vidiocgmbuf          = vidiocgmbuf,
1451 #endif
1452         .vidioc_g_tuner       = vidioc_g_tuner,
1453         .vidioc_s_tuner       = vidioc_s_tuner,
1454         .vidioc_g_frequency   = vidioc_g_frequency,
1455         .vidioc_s_frequency   = vidioc_s_frequency,
1456 #ifdef CONFIG_VIDEO_ADV_DEBUG
1457         .vidioc_g_register    = vidioc_g_register,
1458         .vidioc_s_register    = vidioc_s_register,
1459 #endif
1460 };
1461
1462 static struct video_device cx23885_vbi_template;
1463 static struct video_device cx23885_video_template = {
1464         .name                 = "cx23885-video",
1465         .fops                 = &video_fops,
1466         .minor                = -1,
1467         .ioctl_ops            = &video_ioctl_ops,
1468         .tvnorms              = CX23885_NORMS,
1469         .current_norm         = V4L2_STD_NTSC_M,
1470 };
1471
1472 static const struct v4l2_file_operations radio_fops = {
1473         .owner         = THIS_MODULE,
1474         .open          = video_open,
1475         .release       = video_release,
1476         .ioctl         = video_ioctl2,
1477 };
1478
1479
1480 void cx23885_video_unregister(struct cx23885_dev *dev)
1481 {
1482         dprintk(1, "%s()\n", __func__);
1483         cx_clear(PCI_INT_MSK, 1);
1484
1485         if (dev->video_dev) {
1486                 if (-1 != dev->video_dev->minor)
1487                         video_unregister_device(dev->video_dev);
1488                 else
1489                         video_device_release(dev->video_dev);
1490                 dev->video_dev = NULL;
1491
1492                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1493         }
1494 }
1495
1496 int cx23885_video_register(struct cx23885_dev *dev)
1497 {
1498         int err;
1499
1500         dprintk(1, "%s()\n", __func__);
1501         spin_lock_init(&dev->slock);
1502
1503         /* Initialize VBI template */
1504         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1505                 sizeof(cx23885_vbi_template));
1506         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1507
1508         dev->tvnorm = cx23885_video_template.current_norm;
1509
1510         /* init video dma queues */
1511         INIT_LIST_HEAD(&dev->vidq.active);
1512         INIT_LIST_HEAD(&dev->vidq.queued);
1513         dev->vidq.timeout.function = cx23885_vid_timeout;
1514         dev->vidq.timeout.data = (unsigned long)dev;
1515         init_timer(&dev->vidq.timeout);
1516         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1517                 VID_A_DMA_CTL, 0x11, 0x00);
1518
1519         /* Don't enable VBI yet */
1520         cx_set(PCI_INT_MSK, 1);
1521
1522         if (TUNER_ABSENT != dev->tuner_type) {
1523                 struct v4l2_subdev *sd = NULL;
1524
1525                 if (dev->tuner_addr)
1526                         sd = v4l2_i2c_new_subdev(&dev->i2c_bus[1].i2c_adap,
1527                                 "tuner", "tuner", dev->tuner_addr);
1528                 else
1529                         sd = v4l2_i2c_new_probed_subdev(&dev->i2c_bus[1].i2c_adap,
1530                                 "tuner", "tuner", v4l2_i2c_tuner_addrs(ADDRS_TV));
1531                 if (sd) {
1532                         struct tuner_setup tun_setup;
1533
1534                         tun_setup.mode_mask = T_ANALOG_TV;
1535                         tun_setup.type = dev->tuner_type;
1536                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1537
1538                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1539                 }
1540         }
1541
1542
1543         /* register v4l devices */
1544         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1545                 &cx23885_video_template, "video");
1546         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1547                                     video_nr[dev->nr]);
1548         if (err < 0) {
1549                 printk(KERN_INFO "%s: can't register video device\n",
1550                         dev->name);
1551                 goto fail_unreg;
1552         }
1553         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1554                dev->name, dev->video_dev->num);
1555         /* initial device configuration */
1556         mutex_lock(&dev->lock);
1557         cx23885_set_tvnorm(dev, dev->tvnorm);
1558         init_controls(dev);
1559         cx23885_video_mux(dev, 0);
1560         mutex_unlock(&dev->lock);
1561
1562         return 0;
1563
1564 fail_unreg:
1565         cx23885_video_unregister(dev);
1566         return err;
1567 }
1568