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 #ifdef CONFIG_VIDEO_V4L1_COMPAT
  39 /* Include V4L1 specific functions. Should be removed soon */
  40 #include <linux/videodev.h>
  41 #endif
  42
  43 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  44 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  45 MODULE_LICENSE("GPL");
  46
  47 /* ------------------------------------------------------------------ */
  48
  49 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  50 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  51 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  52
  53 module_param_array(video_nr, int, NULL, 0444);
  54 module_param_array(vbi_nr,   int, NULL, 0444);
  55 module_param_array(radio_nr, int, NULL, 0444);
  56
  57 MODULE_PARM_DESC(video_nr, "video device numbers");
  58 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  59 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  60
  61 static unsigned int video_debug;
  62 module_param(video_debug, int, 0644);
  63 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  64
  65 static unsigned int irq_debug;
  66 module_param(irq_debug, int, 0644);
  67 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  68
  69 static unsigned int vid_limit = 16;
  70 module_param(vid_limit, int, 0644);
  71 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  72
  73 #define dprintk(level, fmt, arg...)\
  74         do { if (video_debug >= level)\
  75                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  76         } while (0)
  77
  78 /* ------------------------------------------------------------------- */
  79 /* static data                                                         */
  80
  81 #define FORMAT_FLAGS_PACKED       0x01
  82
  83 static struct cx23885_fmt formats[] = {
  84         {
  85                 .name     = "8 bpp, gray",
  86                 .fourcc   = V4L2_PIX_FMT_GREY,
  87                 .depth    = 8,
  88                 .flags    = FORMAT_FLAGS_PACKED,
  89         }, {
  90                 .name     = "15 bpp RGB, le",
  91                 .fourcc   = V4L2_PIX_FMT_RGB555,
  92                 .depth    = 16,
  93                 .flags    = FORMAT_FLAGS_PACKED,
  94         }, {
  95                 .name     = "15 bpp RGB, be",
  96                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  97                 .depth    = 16,
  98                 .flags    = FORMAT_FLAGS_PACKED,
  99         }, {
 100                 .name     = "16 bpp RGB, le",
 101                 .fourcc   = V4L2_PIX_FMT_RGB565,
 102                 .depth    = 16,
 103                 .flags    = FORMAT_FLAGS_PACKED,
 104         }, {
 105                 .name     = "16 bpp RGB, be",
 106                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 107                 .depth    = 16,
 108                 .flags    = FORMAT_FLAGS_PACKED,
 109         }, {
 110                 .name     = "24 bpp RGB, le",
 111                 .fourcc   = V4L2_PIX_FMT_BGR24,
 112                 .depth    = 24,
 113                 .flags    = FORMAT_FLAGS_PACKED,
 114         }, {
 115                 .name     = "32 bpp RGB, le",
 116                 .fourcc   = V4L2_PIX_FMT_BGR32,
 117                 .depth    = 32,
 118                 .flags    = FORMAT_FLAGS_PACKED,
 119         }, {
 120                 .name     = "32 bpp RGB, be",
 121                 .fourcc   = V4L2_PIX_FMT_RGB32,
 122                 .depth    = 32,
 123                 .flags    = FORMAT_FLAGS_PACKED,
 124         }, {
 125                 .name     = "4:2:2, packed, YUYV",
 126                 .fourcc   = V4L2_PIX_FMT_YUYV,
 127                 .depth    = 16,
 128                 .flags    = FORMAT_FLAGS_PACKED,
 129         }, {
 130                 .name     = "4:2:2, packed, UYVY",
 131                 .fourcc   = V4L2_PIX_FMT_UYVY,
 132                 .depth    = 16,
 133                 .flags    = FORMAT_FLAGS_PACKED,
 134         },
 135 };
 136
 137 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 138 {
 139         unsigned int i;
 140
 141         for (i = 0; i < ARRAY_SIZE(formats); i++)
 142                 if (formats[i].fourcc == fourcc)
 143                         return formats+i;
 144
 145         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 146         return NULL;
 147 }
 148
 149 /* ------------------------------------------------------------------- */
 150
 151 static const struct v4l2_queryctrl no_ctl = {
 152         .name  = "42",
 153         .flags = V4L2_CTRL_FLAG_DISABLED,
 154 };
 155
 156 static struct cx23885_ctrl cx23885_ctls[] = {
 157         /* --- video --- */
 158         {
 159                 .v = {
 160                         .id            = V4L2_CID_BRIGHTNESS,
 161                         .name          = "Brightness",
 162                         .minimum       = 0x00,
 163                         .maximum       = 0xff,
 164                         .step          = 1,
 165                         .default_value = 0x7f,
 166                         .type          = V4L2_CTRL_TYPE_INTEGER,
 167                 },
 168                 .off                   = 128,
 169                 .reg                   = LUMA_CTRL,
 170                 .mask                  = 0x00ff,
 171                 .shift                 = 0,
 172         }, {
 173                 .v = {
 174                         .id            = V4L2_CID_CONTRAST,
 175                         .name          = "Contrast",
 176                         .minimum       = 0,
 177                         .maximum       = 0xff,
 178                         .step          = 1,
 179                         .default_value = 0x3f,
 180                         .type          = V4L2_CTRL_TYPE_INTEGER,
 181                 },
 182                 .off                   = 0,
 183                 .reg                   = LUMA_CTRL,
 184                 .mask                  = 0xff00,
 185                 .shift                 = 8,
 186         }, {
 187                 .v = {
 188                         .id            = V4L2_CID_HUE,
 189                         .name          = "Hue",
 190                         .minimum       = 0,
 191                         .maximum       = 0xff,
 192                         .step          = 1,
 193                         .default_value = 0x7f,
 194                         .type          = V4L2_CTRL_TYPE_INTEGER,
 195                 },
 196                 .off                   = 128,
 197                 .reg                   = CHROMA_CTRL,
 198                 .mask                  = 0xff0000,
 199                 .shift                 = 16,
 200         }, {
 201                 /* strictly, this only describes only U saturation.
 202                  * V saturation is handled specially through code.
 203                  */
 204                 .v = {
 205                         .id            = V4L2_CID_SATURATION,
 206                         .name          = "Saturation",
 207                         .minimum       = 0,
 208                         .maximum       = 0xff,
 209                         .step          = 1,
 210                         .default_value = 0x7f,
 211                         .type          = V4L2_CTRL_TYPE_INTEGER,
 212                 },
 213                 .off                   = 0,
 214                 .reg                   = CHROMA_CTRL,
 215                 .mask                  = 0x00ff,
 216                 .shift                 = 0,
 217         }, {
 218         /* --- audio --- */
 219                 .v = {
 220                         .id            = V4L2_CID_AUDIO_MUTE,
 221                         .name          = "Mute",
 222                         .minimum       = 0,
 223                         .maximum       = 1,
 224                         .default_value = 1,
 225                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 226                 },
 227                 .reg                   = PATH1_CTL1,
 228                 .mask                  = (0x1f << 24),
 229                 .shift                 = 24,
 230         }, {
 231                 .v = {
 232                         .id            = V4L2_CID_AUDIO_VOLUME,
 233                         .name          = "Volume",
 234                         .minimum       = 0,
 235                         .maximum       = 0x3f,
 236                         .step          = 1,
 237                         .default_value = 0x3f,
 238                         .type          = V4L2_CTRL_TYPE_INTEGER,
 239                 },
 240                 .reg                   = PATH1_VOL_CTL,
 241                 .mask                  = 0xff,
 242                 .shift                 = 0,
 243         }
 244 };
 245 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 246
 247 static const u32 cx23885_user_ctrls[] = {
 248         V4L2_CID_USER_CLASS,
 249         V4L2_CID_BRIGHTNESS,
 250         V4L2_CID_CONTRAST,
 251         V4L2_CID_SATURATION,
 252         V4L2_CID_HUE,
 253         V4L2_CID_AUDIO_VOLUME,
 254         V4L2_CID_AUDIO_MUTE,
 255         0
 256 };
 257
 258 static const u32 *ctrl_classes[] = {
 259         cx23885_user_ctrls,
 260         NULL
 261 };
 262
 263 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 264                  struct cx23885_dmaqueue *q, u32 count)
 265 {
 266         struct cx23885_buffer *buf;
 267         int bc;
 268
 269         for (bc = 0;; bc++) {
 270                 if (list_empty(&q->active))
 271                         break;
 272                 buf = list_entry(q->active.next,
 273                                  struct cx23885_buffer, vb.queue);
 274
 275                 /* count comes from the hw and is is 16bit wide --
 276                  * this trick handles wrap-arounds correctly for
 277                  * up to 32767 buffers in flight... */
 278                 if ((s16) (count - buf->count) < 0)
 279                         break;
 280
 281                 do_gettimeofday(&buf->vb.ts);
 282                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 283                         count, buf->count);
 284                 buf->vb.state = VIDEOBUF_DONE;
 285                 list_del(&buf->vb.queue);
 286                 wake_up(&buf->vb.done);
 287         }
 288         if (list_empty(&q->active))
 289                 del_timer(&q->timeout);
 290         else
 291                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 292         if (bc != 1)
 293                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 294                         __func__, bc);
 295 }
 296
 297 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 298 {
 299         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 300                 __func__,
 301                 (unsigned int)norm,
 302                 v4l2_norm_to_name(norm));
 303
 304         dev->tvnorm = norm;
 305
 306         /* Tell the analog tuner/demods */
 307         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
 308
 309         /* Tell the internal A/V decoder */
 310         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
 311
 312         return 0;
 313 }
 314
 315 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 316                                     struct pci_dev *pci,
 317                                     struct video_device *template,
 318                                     char *type)
 319 {
 320         struct video_device *vfd;
 321         dprintk(1, "%s()\n", __func__);
 322
 323         vfd = video_device_alloc();
 324         if (NULL == vfd)
 325                 return NULL;
 326         *vfd = *template;
 327         vfd->minor   = -1;
 328         vfd->parent  = &pci->dev;
 329         vfd->release = video_device_release;
 330         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 331                  dev->name, type, cx23885_boards[dev->board].name);
 332         return vfd;
 333 }
 334
 335 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 336 {
 337         int i;
 338
 339         if (qctrl->id < V4L2_CID_BASE ||
 340             qctrl->id >= V4L2_CID_LASTP1)
 341                 return -EINVAL;
 342         for (i = 0; i < CX23885_CTLS; i++)
 343                 if (cx23885_ctls[i].v.id == qctrl->id)
 344                         break;
 345         if (i == CX23885_CTLS) {
 346                 *qctrl = no_ctl;
 347                 return 0;
 348         }
 349         *qctrl = cx23885_ctls[i].v;
 350         return 0;
 351 }
 352
 353 /* ------------------------------------------------------------------- */
 354 /* resource management                                                 */
 355
 356 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 357         unsigned int bit)
 358 {
 359         dprintk(1, "%s()\n", __func__);
 360         if (fh->resources & bit)
 361                 /* have it already allocated */
 362                 return 1;
 363
 364         /* is it free? */
 365         mutex_lock(&dev->lock);
 366         if (dev->resources & bit) {
 367                 /* no, someone else uses it */
 368                 mutex_unlock(&dev->lock);
 369                 return 0;
 370         }
 371         /* it's free, grab it */
 372         fh->resources  |= bit;
 373         dev->resources |= bit;
 374         dprintk(1, "res: get %d\n", bit);
 375         mutex_unlock(&dev->lock);
 376         return 1;
 377 }
 378
 379 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 380 {
 381         return fh->resources & bit;
 382 }
 383
 384 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 385 {
 386         return dev->resources & bit;
 387 }
 388
 389 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 390         unsigned int bits)
 391 {
 392         BUG_ON((fh->resources & bits) != bits);
 393         dprintk(1, "%s()\n", __func__);
 394
 395         mutex_lock(&dev->lock);
 396         fh->resources  &= ~bits;
 397         dev->resources &= ~bits;
 398         dprintk(1, "res: put %d\n", bits);
 399         mutex_unlock(&dev->lock);
 400 }
 401
 402 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 403 {
 404         struct v4l2_routing route;
 405         memset(&route, 0, sizeof(route));
 406
 407         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 408                 __func__,
 409                 input, INPUT(input)->vmux,
 410                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 411                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 412         dev->input = input;
 413
 414         route.input = INPUT(input)->vmux;
 415
 416         /* Tell the internal A/V decoder */
 417         cx23885_call_i2c_clients(&dev->i2c_bus[2],
 418                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
 419
 420         return 0;
 421 }
 422
 423 /* ------------------------------------------------------------------ */
 424 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 425         unsigned int height, enum v4l2_field field)
 426 {
 427         dprintk(1, "%s()\n", __func__);
 428         return 0;
 429 }
 430
 431 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 432                            struct cx23885_dmaqueue *q,
 433                            struct cx23885_buffer *buf)
 434 {
 435         dprintk(1, "%s()\n", __func__);
 436
 437         /* setup fifo + format */
 438         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 439                                 buf->bpl, buf->risc.dma);
 440         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 441
 442         /* reset counter */
 443         cx_write(VID_A_GPCNT_CTL, 3);
 444         q->count = 1;
 445
 446         /* enable irq */
 447         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 448         cx_set(VID_A_INT_MSK, 0x000011);
 449
 450         /* start dma */
 451         cx_set(DEV_CNTRL2, (1<<5));
 452         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 453
 454         return 0;
 455 }
 456
 457
 458 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 459                                struct cx23885_dmaqueue *q)
 460 {
 461         struct cx23885_buffer *buf, *prev;
 462         struct list_head *item;
 463         dprintk(1, "%s()\n", __func__);
 464
 465         if (!list_empty(&q->active)) {
 466                 buf = list_entry(q->active.next, struct cx23885_buffer,
 467                         vb.queue);
 468                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 469                         buf, buf->vb.i);
 470                 cx23885_start_video_dma(dev, q, buf);
 471                 list_for_each(item, &q->active) {
 472                         buf = list_entry(item, struct cx23885_buffer,
 473                                 vb.queue);
 474                         buf->count    = q->count++;
 475                 }
 476                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 477                 return 0;
 478         }
 479
 480         prev = NULL;
 481         for (;;) {
 482                 if (list_empty(&q->queued))
 483                         return 0;
 484                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 485                         vb.queue);
 486                 if (NULL == prev) {
 487                         list_move_tail(&buf->vb.queue, &q->active);
 488                         cx23885_start_video_dma(dev, q, buf);
 489                         buf->vb.state = VIDEOBUF_ACTIVE;
 490                         buf->count    = q->count++;
 491                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 492                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 493                                 buf, buf->vb.i);
 494
 495                 } else if (prev->vb.width  == buf->vb.width  &&
 496                            prev->vb.height == buf->vb.height &&
 497                            prev->fmt       == buf->fmt) {
 498                         list_move_tail(&buf->vb.queue, &q->active);
 499                         buf->vb.state = VIDEOBUF_ACTIVE;
 500                         buf->count    = q->count++;
 501                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 502                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 503                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 504                                 buf, buf->vb.i);
 505                 } else {
 506                         return 0;
 507                 }
 508                 prev = buf;
 509         }
 510 }
 511
 512 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 513         unsigned int *size)
 514 {
 515         struct cx23885_fh *fh = q->priv_data;
 516
 517         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 518         if (0 == *count)
 519                 *count = 32;
 520         while (*size * *count > vid_limit * 1024 * 1024)
 521                 (*count)--;
 522         return 0;
 523 }
 524
 525 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 526                enum v4l2_field field)
 527 {
 528         struct cx23885_fh *fh  = q->priv_data;
 529         struct cx23885_dev *dev = fh->dev;
 530         struct cx23885_buffer *buf =
 531                 container_of(vb, struct cx23885_buffer, vb);
 532         int rc, init_buffer = 0;
 533         u32 line0_offset, line1_offset;
 534         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 535
 536         BUG_ON(NULL == fh->fmt);
 537         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 538             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 539                 return -EINVAL;
 540         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 541         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 542                 return -EINVAL;
 543
 544         if (buf->fmt       != fh->fmt    ||
 545             buf->vb.width  != fh->width  ||
 546             buf->vb.height != fh->height ||
 547             buf->vb.field  != field) {
 548                 buf->fmt       = fh->fmt;
 549                 buf->vb.width  = fh->width;
 550                 buf->vb.height = fh->height;
 551                 buf->vb.field  = field;
 552                 init_buffer = 1;
 553         }
 554
 555         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 556                 init_buffer = 1;
 557                 rc = videobuf_iolock(q, &buf->vb, NULL);
 558                 if (0 != rc)
 559                         goto fail;
 560         }
 561
 562         if (init_buffer) {
 563                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 564                 switch (buf->vb.field) {
 565                 case V4L2_FIELD_TOP:
 566                         cx23885_risc_buffer(dev->pci, &buf->risc,
 567                                          dma->sglist, 0, UNSET,
 568                                          buf->bpl, 0, buf->vb.height);
 569                         break;
 570                 case V4L2_FIELD_BOTTOM:
 571                         cx23885_risc_buffer(dev->pci, &buf->risc,
 572                                          dma->sglist, UNSET, 0,
 573                                          buf->bpl, 0, buf->vb.height);
 574                         break;
 575                 case V4L2_FIELD_INTERLACED:
 576                         if (dev->tvnorm & V4L2_STD_NTSC) {
 577                                 /* cx25840 transmits NTSC bottom field first */
 578                                 dprintk(1, "%s() Creating NTSC risc\n",
 579                                         __func__);
 580                                 line0_offset = buf->bpl;
 581                                 line1_offset = 0;
 582                         } else {
 583                                 /* All other formats are top field first */
 584                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 585                                         __func__);
 586                                 line0_offset = 0;
 587                                 line1_offset = buf->bpl;
 588                         }
 589                         cx23885_risc_buffer(dev->pci, &buf->risc,
 590                                         dma->sglist, line0_offset,
 591                                         line1_offset,
 592                                         buf->bpl, buf->bpl,
 593                                         buf->vb.height >> 1);
 594                         break;
 595                 case V4L2_FIELD_SEQ_TB:
 596                         cx23885_risc_buffer(dev->pci, &buf->risc,
 597                                          dma->sglist,
 598                                          0, buf->bpl * (buf->vb.height >> 1),
 599                                          buf->bpl, 0,
 600                                          buf->vb.height >> 1);
 601                         break;
 602                 case V4L2_FIELD_SEQ_BT:
 603                         cx23885_risc_buffer(dev->pci, &buf->risc,
 604                                          dma->sglist,
 605                                          buf->bpl * (buf->vb.height >> 1), 0,
 606                                          buf->bpl, 0,
 607                                          buf->vb.height >> 1);
 608                         break;
 609                 default:
 610                         BUG();
 611                 }
 612         }
 613         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 614                 buf, buf->vb.i,
 615                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 616                 (unsigned long)buf->risc.dma);
 617
 618         buf->vb.state = VIDEOBUF_PREPARED;
 619         return 0;
 620
 621  fail:
 622         cx23885_free_buffer(q, buf);
 623         return rc;
 624 }
 625
 626 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 627 {
 628         struct cx23885_buffer   *buf = container_of(vb,
 629                 struct cx23885_buffer, vb);
 630         struct cx23885_buffer   *prev;
 631         struct cx23885_fh       *fh   = vq->priv_data;
 632         struct cx23885_dev      *dev  = fh->dev;
 633         struct cx23885_dmaqueue *q    = &dev->vidq;
 634
 635         /* add jump to stopper */
 636         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 637         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 638         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 639
 640         if (!list_empty(&q->queued)) {
 641                 list_add_tail(&buf->vb.queue, &q->queued);
 642                 buf->vb.state = VIDEOBUF_QUEUED;
 643                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 644                         buf, buf->vb.i);
 645
 646         } else if (list_empty(&q->active)) {
 647                 list_add_tail(&buf->vb.queue, &q->active);
 648                 cx23885_start_video_dma(dev, q, buf);
 649                 buf->vb.state = VIDEOBUF_ACTIVE;
 650                 buf->count    = q->count++;
 651                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 652                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 653                         buf, buf->vb.i);
 654
 655         } else {
 656                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 657                         vb.queue);
 658                 if (prev->vb.width  == buf->vb.width  &&
 659                     prev->vb.height == buf->vb.height &&
 660                     prev->fmt       == buf->fmt) {
 661                         list_add_tail(&buf->vb.queue, &q->active);
 662                         buf->vb.state = VIDEOBUF_ACTIVE;
 663                         buf->count    = q->count++;
 664                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 665                         /* 64 bit bits 63-32 */
 666                         prev->risc.jmp[2] = cpu_to_le32(0);
 667                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 668                                 buf, buf->vb.i);
 669
 670                 } else {
 671                         list_add_tail(&buf->vb.queue, &q->queued);
 672                         buf->vb.state = VIDEOBUF_QUEUED;
 673                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 674                                 buf, buf->vb.i);
 675                 }
 676         }
 677 }
 678
 679 static void buffer_release(struct videobuf_queue *q,
 680         struct videobuf_buffer *vb)
 681 {
 682         struct cx23885_buffer *buf = container_of(vb,
 683                 struct cx23885_buffer, vb);
 684
 685         cx23885_free_buffer(q, buf);
 686 }
 687
 688 static struct videobuf_queue_ops cx23885_video_qops = {
 689         .buf_setup    = buffer_setup,
 690         .buf_prepare  = buffer_prepare,
 691         .buf_queue    = buffer_queue,
 692         .buf_release  = buffer_release,
 693 };
 694
 695 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 696 {
 697         switch (fh->type) {
 698         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 699                 return &fh->vidq;
 700         case V4L2_BUF_TYPE_VBI_CAPTURE:
 701                 return &fh->vbiq;
 702         default:
 703                 BUG();
 704                 return NULL;
 705         }
 706 }
 707
 708 static int get_resource(struct cx23885_fh *fh)
 709 {
 710         switch (fh->type) {
 711         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 712                 return RESOURCE_VIDEO;
 713         case V4L2_BUF_TYPE_VBI_CAPTURE:
 714                 return RESOURCE_VBI;
 715         default:
 716                 BUG();
 717                 return 0;
 718         }
 719 }
 720
 721 static int video_open(struct file *file)
 722 {
 723         int minor = video_devdata(file)->minor;
 724         struct cx23885_dev *h, *dev = NULL;
 725         struct cx23885_fh *fh;
 726         struct list_head *list;
 727         enum v4l2_buf_type type = 0;
 728         int radio = 0;
 729
 730         lock_kernel();
 731         list_for_each(list, &cx23885_devlist) {
 732                 h = list_entry(list, struct cx23885_dev, devlist);
 733                 if (h->video_dev &&
 734                     h->video_dev->minor == minor) {
 735                         dev  = h;
 736                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 737                 }
 738                 if (h->vbi_dev &&
 739                     h->vbi_dev->minor == minor) {
 740                         dev  = h;
 741                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 742                 }
 743                 if (h->radio_dev &&
 744                     h->radio_dev->minor == minor) {
 745                         radio = 1;
 746                         dev   = h;
 747                 }
 748         }
 749         if (NULL == dev) {
 750                 unlock_kernel();
 751                 return -ENODEV;
 752         }
 753
 754         dprintk(1, "open minor=%d radio=%d type=%s\n",
 755                 minor, radio, v4l2_type_names[type]);
 756
 757         /* allocate + initialize per filehandle data */
 758         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 759         if (NULL == fh) {
 760                 unlock_kernel();
 761                 return -ENOMEM;
 762         }
 763         file->private_data = fh;
 764         fh->dev      = dev;
 765         fh->radio    = radio;
 766         fh->type     = type;
 767         fh->width    = 320;
 768         fh->height   = 240;
 769         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 770
 771         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 772                             &dev->pci->dev, &dev->slock,
 773                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 774                             V4L2_FIELD_INTERLACED,
 775                             sizeof(struct cx23885_buffer),
 776                             fh);
 777
 778         dprintk(1, "post videobuf_queue_init()\n");
 779
 780         unlock_kernel();
 781
 782         return 0;
 783 }
 784
 785 static ssize_t video_read(struct file *file, char __user *data,
 786         size_t count, loff_t *ppos)
 787 {
 788         struct cx23885_fh *fh = file->private_data;
 789
 790         switch (fh->type) {
 791         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 792                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 793                         return -EBUSY;
 794                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 795                                          file->f_flags & O_NONBLOCK);
 796         case V4L2_BUF_TYPE_VBI_CAPTURE:
 797                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 798                         return -EBUSY;
 799                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 800                                             file->f_flags & O_NONBLOCK);
 801         default:
 802                 BUG();
 803                 return 0;
 804         }
 805 }
 806
 807 static unsigned int video_poll(struct file *file,
 808         struct poll_table_struct *wait)
 809 {
 810         struct cx23885_fh *fh = file->private_data;
 811         struct cx23885_buffer *buf;
 812
 813         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 814                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 815                         return POLLERR;
 816                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 817         }
 818
 819         if (res_check(fh, RESOURCE_VIDEO)) {
 820                 /* streaming capture */
 821                 if (list_empty(&fh->vidq.stream))
 822                         return POLLERR;
 823                 buf = list_entry(fh->vidq.stream.next,
 824                         struct cx23885_buffer, vb.stream);
 825         } else {
 826                 /* read() capture */
 827                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 828                 if (NULL == buf)
 829                         return POLLERR;
 830         }
 831         poll_wait(file, &buf->vb.done, wait);
 832         if (buf->vb.state == VIDEOBUF_DONE ||
 833             buf->vb.state == VIDEOBUF_ERROR)
 834                 return POLLIN|POLLRDNORM;
 835         return 0;
 836 }
 837
 838 static int video_release(struct file *file)
 839 {
 840         struct cx23885_fh *fh = file->private_data;
 841         struct cx23885_dev *dev = fh->dev;
 842
 843         /* turn off overlay */
 844         if (res_check(fh, RESOURCE_OVERLAY)) {
 845                 /* FIXME */
 846                 res_free(dev, fh, RESOURCE_OVERLAY);
 847         }
 848
 849         /* stop video capture */
 850         if (res_check(fh, RESOURCE_VIDEO)) {
 851                 videobuf_queue_cancel(&fh->vidq);
 852                 res_free(dev, fh, RESOURCE_VIDEO);
 853         }
 854         if (fh->vidq.read_buf) {
 855                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 856                 kfree(fh->vidq.read_buf);
 857         }
 858
 859         /* stop vbi capture */
 860         if (res_check(fh, RESOURCE_VBI)) {
 861                 if (fh->vbiq.streaming)
 862                         videobuf_streamoff(&fh->vbiq);
 863                 if (fh->vbiq.reading)
 864                         videobuf_read_stop(&fh->vbiq);
 865                 res_free(dev, fh, RESOURCE_VBI);
 866         }
 867
 868         videobuf_mmap_free(&fh->vidq);
 869         file->private_data = NULL;
 870         kfree(fh);
 871
 872         /* We are not putting the tuner to sleep here on exit, because
 873          * we want to use the mpeg encoder in another session to capture
 874          * tuner video. Closing this will result in no video to the encoder.
 875          */
 876
 877         return 0;
 878 }
 879
 880 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 881 {
 882         struct cx23885_fh *fh = file->private_data;
 883
 884         return videobuf_mmap_mapper(get_queue(fh), vma);
 885 }
 886
 887 /* ------------------------------------------------------------------ */
 888 /* VIDEO CTRL IOCTLS                                                  */
 889
 890 static int cx23885_get_control(struct cx23885_dev *dev,
 891         struct v4l2_control *ctl)
 892 {
 893         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 894         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
 895         return 0;
 896 }
 897
 898 static int cx23885_set_control(struct cx23885_dev *dev,
 899         struct v4l2_control *ctl)
 900 {
 901         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 902                 " (disabled - no action)\n", __func__);
 903         return 0;
 904 }
 905
 906 static void init_controls(struct cx23885_dev *dev)
 907 {
 908         struct v4l2_control ctrl;
 909         int i;
 910
 911         for (i = 0; i < CX23885_CTLS; i++) {
 912                 ctrl.id = cx23885_ctls[i].v.id;
 913                 ctrl.value = cx23885_ctls[i].v.default_value;
 914
 915                 cx23885_set_control(dev, &ctrl);
 916         }
 917 }
 918
 919 /* ------------------------------------------------------------------ */
 920 /* VIDEO IOCTLS                                                       */
 921
 922 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 923         struct v4l2_format *f)
 924 {
 925         struct cx23885_fh *fh   = priv;
 926
 927         f->fmt.pix.width        = fh->width;
 928         f->fmt.pix.height       = fh->height;
 929         f->fmt.pix.field        = fh->vidq.field;
 930         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 931         f->fmt.pix.bytesperline =
 932                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 933         f->fmt.pix.sizeimage =
 934                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 935
 936         return 0;
 937 }
 938
 939 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 940         struct v4l2_format *f)
 941 {
 942         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 943         struct cx23885_fmt *fmt;
 944         enum v4l2_field   field;
 945         unsigned int      maxw, maxh;
 946
 947         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 948         if (NULL == fmt)
 949                 return -EINVAL;
 950
 951         field = f->fmt.pix.field;
 952         maxw  = norm_maxw(dev->tvnorm);
 953         maxh  = norm_maxh(dev->tvnorm);
 954
 955         if (V4L2_FIELD_ANY == field) {
 956                 field = (f->fmt.pix.height > maxh/2)
 957                         ? V4L2_FIELD_INTERLACED
 958                         : V4L2_FIELD_BOTTOM;
 959         }
 960
 961         switch (field) {
 962         case V4L2_FIELD_TOP:
 963         case V4L2_FIELD_BOTTOM:
 964                 maxh = maxh / 2;
 965                 break;
 966         case V4L2_FIELD_INTERLACED:
 967                 break;
 968         default:
 969                 return -EINVAL;
 970         }
 971
 972         f->fmt.pix.field = field;
 973         if (f->fmt.pix.height < 32)
 974                 f->fmt.pix.height = 32;
 975         if (f->fmt.pix.height > maxh)
 976                 f->fmt.pix.height = maxh;
 977         if (f->fmt.pix.width < 48)
 978                 f->fmt.pix.width = 48;
 979         if (f->fmt.pix.width > maxw)
 980                 f->fmt.pix.width = maxw;
 981         f->fmt.pix.width &= ~0x03;
 982         f->fmt.pix.bytesperline =
 983                 (f->fmt.pix.width * fmt->depth) >> 3;
 984         f->fmt.pix.sizeimage =
 985                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 986
 987         return 0;
 988 }
 989
 990 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 991         struct v4l2_format *f)
 992 {
 993         struct cx23885_fh *fh = priv;
 994         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 995         int err;
 996
 997         dprintk(2, "%s()\n", __func__);
 998         err = vidioc_try_fmt_vid_cap(file, priv, f);
 999
1000         if (0 != err)
1001                 return err;
1002         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1003         fh->width      = f->fmt.pix.width;
1004         fh->height     = f->fmt.pix.height;
1005         fh->vidq.field = f->fmt.pix.field;
1006         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1007                 fh->width, fh->height, fh->vidq.field);
1008         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1009         return 0;
1010 }
1011
1012 static int vidioc_querycap(struct file *file, void  *priv,
1013         struct v4l2_capability *cap)
1014 {
1015         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1016
1017         strcpy(cap->driver, "cx23885");
1018         strlcpy(cap->card, cx23885_boards[dev->board].name,
1019                 sizeof(cap->card));
1020         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1021         cap->version = CX23885_VERSION_CODE;
1022         cap->capabilities =
1023                 V4L2_CAP_VIDEO_CAPTURE |
1024                 V4L2_CAP_READWRITE     |
1025                 V4L2_CAP_STREAMING     |
1026                 V4L2_CAP_VBI_CAPTURE;
1027         if (UNSET != dev->tuner_type)
1028                 cap->capabilities |= V4L2_CAP_TUNER;
1029         return 0;
1030 }
1031
1032 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1033         struct v4l2_fmtdesc *f)
1034 {
1035         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1036                 return -EINVAL;
1037
1038         strlcpy(f->description, formats[f->index].name,
1039                 sizeof(f->description));
1040         f->pixelformat = formats[f->index].fourcc;
1041
1042         return 0;
1043 }
1044
1045 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1046 static int vidiocgmbuf(struct file *file, void *priv,
1047         struct video_mbuf *mbuf)
1048 {
1049         struct cx23885_fh *fh = priv;
1050         struct videobuf_queue *q;
1051         struct v4l2_requestbuffers req;
1052         unsigned int i;
1053         int err;
1054
1055         q = get_queue(fh);
1056         memset(&req, 0, sizeof(req));
1057         req.type   = q->type;
1058         req.count  = 8;
1059         req.memory = V4L2_MEMORY_MMAP;
1060         err = videobuf_reqbufs(q, &req);
1061         if (err < 0)
1062                 return err;
1063
1064         mbuf->frames = req.count;
1065         mbuf->size   = 0;
1066         for (i = 0; i < mbuf->frames; i++) {
1067                 mbuf->offsets[i]  = q->bufs[i]->boff;
1068                 mbuf->size       += q->bufs[i]->bsize;
1069         }
1070         return 0;
1071 }
1072 #endif
1073
1074 static int vidioc_reqbufs(struct file *file, void *priv,
1075         struct v4l2_requestbuffers *p)
1076 {
1077         struct cx23885_fh *fh = priv;
1078         return videobuf_reqbufs(get_queue(fh), p);
1079 }
1080
1081 static int vidioc_querybuf(struct file *file, void *priv,
1082         struct v4l2_buffer *p)
1083 {
1084         struct cx23885_fh *fh = priv;
1085         return videobuf_querybuf(get_queue(fh), p);
1086 }
1087
1088 static int vidioc_qbuf(struct file *file, void *priv,
1089         struct v4l2_buffer *p)
1090 {
1091         struct cx23885_fh *fh = priv;
1092         return videobuf_qbuf(get_queue(fh), p);
1093 }
1094
1095 static int vidioc_dqbuf(struct file *file, void *priv,
1096         struct v4l2_buffer *p)
1097 {
1098         struct cx23885_fh *fh = priv;
1099         return videobuf_dqbuf(get_queue(fh), p,
1100                                 file->f_flags & O_NONBLOCK);
1101 }
1102
1103 static int vidioc_streamon(struct file *file, void *priv,
1104         enum v4l2_buf_type i)
1105 {
1106         struct cx23885_fh *fh = priv;
1107         struct cx23885_dev *dev = fh->dev;
1108         dprintk(1, "%s()\n", __func__);
1109
1110         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1111                 return -EINVAL;
1112         if (unlikely(i != fh->type))
1113                 return -EINVAL;
1114
1115         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1116                 return -EBUSY;
1117         return videobuf_streamon(get_queue(fh));
1118 }
1119
1120 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1121 {
1122         struct cx23885_fh *fh = priv;
1123         struct cx23885_dev *dev = fh->dev;
1124         int err, res;
1125         dprintk(1, "%s()\n", __func__);
1126
1127         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1128                 return -EINVAL;
1129         if (i != fh->type)
1130                 return -EINVAL;
1131
1132         res = get_resource(fh);
1133         err = videobuf_streamoff(get_queue(fh));
1134         if (err < 0)
1135                 return err;
1136         res_free(dev, fh, res);
1137         return 0;
1138 }
1139
1140 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1141 {
1142         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1143         dprintk(1, "%s()\n", __func__);
1144
1145         mutex_lock(&dev->lock);
1146         cx23885_set_tvnorm(dev, *tvnorms);
1147         mutex_unlock(&dev->lock);
1148
1149         return 0;
1150 }
1151
1152 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1153 {
1154         static const char *iname[] = {
1155                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1156                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1157                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1158                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1159                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1160                 [CX23885_VMUX_TELEVISION] = "Television",
1161                 [CX23885_VMUX_CABLE]      = "Cable TV",
1162                 [CX23885_VMUX_DVB]        = "DVB",
1163                 [CX23885_VMUX_DEBUG]      = "for debug only",
1164         };
1165         unsigned int n;
1166         dprintk(1, "%s()\n", __func__);
1167
1168         n = i->index;
1169         if (n >= 4)
1170                 return -EINVAL;
1171
1172         if (0 == INPUT(n)->type)
1173                 return -EINVAL;
1174
1175         memset(i, 0, sizeof(*i));
1176         i->index = n;
1177         i->type  = V4L2_INPUT_TYPE_CAMERA;
1178         strcpy(i->name, iname[INPUT(n)->type]);
1179         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1180                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1181                 i->type = V4L2_INPUT_TYPE_TUNER;
1182                 i->std = CX23885_NORMS;
1183         return 0;
1184 }
1185
1186 static int vidioc_enum_input(struct file *file, void *priv,
1187                                 struct v4l2_input *i)
1188 {
1189         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1190         dprintk(1, "%s()\n", __func__);
1191         return cx23885_enum_input(dev, i);
1192 }
1193
1194 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1195 {
1196         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1197
1198         *i = dev->input;
1199         dprintk(1, "%s() returns %d\n", __func__, *i);
1200         return 0;
1201 }
1202
1203 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1204 {
1205         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1206
1207         dprintk(1, "%s(%d)\n", __func__, i);
1208
1209         if (i >= 4) {
1210                 dprintk(1, "%s() -EINVAL\n", __func__);
1211                 return -EINVAL;
1212         }
1213
1214         mutex_lock(&dev->lock);
1215         cx23885_video_mux(dev, i);
1216         mutex_unlock(&dev->lock);
1217         return 0;
1218 }
1219
1220 static int vidioc_queryctrl(struct file *file, void *priv,
1221                                 struct v4l2_queryctrl *qctrl)
1222 {
1223         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1224         if (unlikely(qctrl->id == 0))
1225                 return -EINVAL;
1226         return cx23885_ctrl_query(qctrl);
1227 }
1228
1229 static int vidioc_g_ctrl(struct file *file, void *priv,
1230                                 struct v4l2_control *ctl)
1231 {
1232         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1233
1234         return cx23885_get_control(dev, ctl);
1235 }
1236
1237 static int vidioc_s_ctrl(struct file *file, void *priv,
1238                                 struct v4l2_control *ctl)
1239 {
1240         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1241
1242         return cx23885_set_control(dev, ctl);
1243 }
1244
1245 static int vidioc_g_tuner(struct file *file, void *priv,
1246                                 struct v4l2_tuner *t)
1247 {
1248         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1249
1250         if (unlikely(UNSET == dev->tuner_type))
1251                 return -EINVAL;
1252         if (0 != t->index)
1253                 return -EINVAL;
1254
1255         strcpy(t->name, "Television");
1256         t->type       = V4L2_TUNER_ANALOG_TV;
1257         t->capability = V4L2_TUNER_CAP_NORM;
1258         t->rangehigh  = 0xffffffffUL;
1259         t->signal = 0xffff ; /* LOCKED */
1260         return 0;
1261 }
1262
1263 static int vidioc_s_tuner(struct file *file, void *priv,
1264                                 struct v4l2_tuner *t)
1265 {
1266         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1267
1268         if (UNSET == dev->tuner_type)
1269                 return -EINVAL;
1270         if (0 != t->index)
1271                 return -EINVAL;
1272         return 0;
1273 }
1274
1275 static int vidioc_g_frequency(struct file *file, void *priv,
1276                                 struct v4l2_frequency *f)
1277 {
1278         struct cx23885_fh *fh = priv;
1279         struct cx23885_dev *dev = fh->dev;
1280
1281         if (unlikely(UNSET == dev->tuner_type))
1282                 return -EINVAL;
1283
1284         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1285         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1286         f->frequency = dev->freq;
1287
1288         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1289
1290         return 0;
1291 }
1292
1293 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1294 {
1295         if (unlikely(UNSET == dev->tuner_type))
1296                 return -EINVAL;
1297         if (unlikely(f->tuner != 0))
1298                 return -EINVAL;
1299
1300         mutex_lock(&dev->lock);
1301         dev->freq = f->frequency;
1302
1303         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1304
1305         /* When changing channels it is required to reset TVAUDIO */
1306         msleep(10);
1307
1308         mutex_unlock(&dev->lock);
1309
1310         return 0;
1311 }
1312
1313 static int vidioc_s_frequency(struct file *file, void *priv,
1314                                 struct v4l2_frequency *f)
1315 {
1316         struct cx23885_fh *fh = priv;
1317         struct cx23885_dev *dev = fh->dev;
1318
1319         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1320                 return -EINVAL;
1321         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1322                 return -EINVAL;
1323
1324         return
1325                 cx23885_set_freq(dev, f);
1326 }
1327
1328 #ifdef CONFIG_VIDEO_ADV_DEBUG
1329 static int vidioc_g_register(struct file *file, void *fh,
1330                                 struct v4l2_dbg_register *reg)
1331 {
1332         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1333
1334         if (!v4l2_chip_match_host(&reg->match))
1335                 return -EINVAL;
1336
1337         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1338
1339         return 0;
1340 }
1341
1342 static int vidioc_s_register(struct file *file, void *fh,
1343                                 struct v4l2_dbg_register *reg)
1344 {
1345         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1346
1347         if (!v4l2_chip_match_host(&reg->match))
1348                 return -EINVAL;
1349
1350         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1351
1352         return 0;
1353 }
1354 #endif
1355
1356 /* ----------------------------------------------------------- */
1357
1358 static void cx23885_vid_timeout(unsigned long data)
1359 {
1360         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1361         struct cx23885_dmaqueue *q = &dev->vidq;
1362         struct cx23885_buffer *buf;
1363         unsigned long flags;
1364
1365         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1366
1367         cx_clear(VID_A_DMA_CTL, 0x11);
1368
1369         spin_lock_irqsave(&dev->slock, flags);
1370         while (!list_empty(&q->active)) {
1371                 buf = list_entry(q->active.next,
1372                         struct cx23885_buffer, vb.queue);
1373                 list_del(&buf->vb.queue);
1374                 buf->vb.state = VIDEOBUF_ERROR;
1375                 wake_up(&buf->vb.done);
1376                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1377                         dev->name, buf, buf->vb.i,
1378                         (unsigned long)buf->risc.dma);
1379         }
1380         cx23885_restart_video_queue(dev, q);
1381         spin_unlock_irqrestore(&dev->slock, flags);
1382 }
1383
1384 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1385 {
1386         u32 mask, count;
1387         int handled = 0;
1388
1389         mask   = cx_read(VID_A_INT_MSK);
1390         if (0 == (status & mask))
1391                 return handled;
1392         cx_write(VID_A_INT_STAT, status);
1393
1394         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1395         /* risc op code error */
1396         if (status & (1 << 16)) {
1397                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1398                         dev->name);
1399                 cx_clear(VID_A_DMA_CTL, 0x11);
1400                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1401         }
1402
1403         /* risc1 y */
1404         if (status & 0x01) {
1405                 spin_lock(&dev->slock);
1406                 count = cx_read(VID_A_GPCNT);
1407                 cx23885_video_wakeup(dev, &dev->vidq, count);
1408                 spin_unlock(&dev->slock);
1409                 handled++;
1410         }
1411         /* risc2 y */
1412         if (status & 0x10) {
1413                 dprintk(2, "stopper video\n");
1414                 spin_lock(&dev->slock);
1415                 cx23885_restart_video_queue(dev, &dev->vidq);
1416                 spin_unlock(&dev->slock);
1417                 handled++;
1418         }
1419
1420         return handled;
1421 }
1422
1423 /* ----------------------------------------------------------- */
1424 /* exported stuff                                              */
1425
1426 static const struct v4l2_file_operations video_fops = {
1427         .owner         = THIS_MODULE,
1428         .open          = video_open,
1429         .release       = video_release,
1430         .read          = video_read,
1431         .poll          = video_poll,
1432         .mmap          = video_mmap,
1433         .ioctl         = video_ioctl2,
1434 };
1435
1436 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1437         .vidioc_querycap      = vidioc_querycap,
1438         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1439         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1440         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1441         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1442         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1443         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1444         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1445         .vidioc_reqbufs       = vidioc_reqbufs,
1446         .vidioc_querybuf      = vidioc_querybuf,
1447         .vidioc_qbuf          = vidioc_qbuf,
1448         .vidioc_dqbuf         = vidioc_dqbuf,
1449         .vidioc_s_std         = vidioc_s_std,
1450         .vidioc_enum_input    = vidioc_enum_input,
1451         .vidioc_g_input       = vidioc_g_input,
1452         .vidioc_s_input       = vidioc_s_input,
1453         .vidioc_queryctrl     = vidioc_queryctrl,
1454         .vidioc_g_ctrl        = vidioc_g_ctrl,
1455         .vidioc_s_ctrl        = vidioc_s_ctrl,
1456         .vidioc_streamon      = vidioc_streamon,
1457         .vidioc_streamoff     = vidioc_streamoff,
1458 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1459         .vidiocgmbuf          = vidiocgmbuf,
1460 #endif
1461         .vidioc_g_tuner       = vidioc_g_tuner,
1462         .vidioc_s_tuner       = vidioc_s_tuner,
1463         .vidioc_g_frequency   = vidioc_g_frequency,
1464         .vidioc_s_frequency   = vidioc_s_frequency,
1465 #ifdef CONFIG_VIDEO_ADV_DEBUG
1466         .vidioc_g_register    = vidioc_g_register,
1467         .vidioc_s_register    = vidioc_s_register,
1468 #endif
1469 };
1470
1471 static struct video_device cx23885_vbi_template;
1472 static struct video_device cx23885_video_template = {
1473         .name                 = "cx23885-video",
1474         .fops                 = &video_fops,
1475         .minor                = -1,
1476         .ioctl_ops            = &video_ioctl_ops,
1477         .tvnorms              = CX23885_NORMS,
1478         .current_norm         = V4L2_STD_NTSC_M,
1479 };
1480
1481 static const struct v4l2_file_operations radio_fops = {
1482         .owner         = THIS_MODULE,
1483         .open          = video_open,
1484         .release       = video_release,
1485         .ioctl         = video_ioctl2,
1486 };
1487
1488
1489 void cx23885_video_unregister(struct cx23885_dev *dev)
1490 {
1491         dprintk(1, "%s()\n", __func__);
1492         cx_clear(PCI_INT_MSK, 1);
1493
1494         if (dev->video_dev) {
1495                 if (-1 != dev->video_dev->minor)
1496                         video_unregister_device(dev->video_dev);
1497                 else
1498                         video_device_release(dev->video_dev);
1499                 dev->video_dev = NULL;
1500
1501                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1502         }
1503 }
1504
1505 int cx23885_video_register(struct cx23885_dev *dev)
1506 {
1507         int err;
1508
1509         dprintk(1, "%s()\n", __func__);
1510         spin_lock_init(&dev->slock);
1511
1512         /* Initialize VBI template */
1513         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1514                 sizeof(cx23885_vbi_template));
1515         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1516
1517         dev->tvnorm = cx23885_video_template.current_norm;
1518
1519         /* init video dma queues */
1520         INIT_LIST_HEAD(&dev->vidq.active);
1521         INIT_LIST_HEAD(&dev->vidq.queued);
1522         dev->vidq.timeout.function = cx23885_vid_timeout;
1523         dev->vidq.timeout.data = (unsigned long)dev;
1524         init_timer(&dev->vidq.timeout);
1525         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1526                 VID_A_DMA_CTL, 0x11, 0x00);
1527
1528         /* Don't enable VBI yet */
1529         cx_set(PCI_INT_MSK, 1);
1530
1531
1532         /* register v4l devices */
1533         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1534                 &cx23885_video_template, "video");
1535         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1536                                     video_nr[dev->nr]);
1537         if (err < 0) {
1538                 printk(KERN_INFO "%s: can't register video device\n",
1539                         dev->name);
1540                 goto fail_unreg;
1541         }
1542         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1543                dev->name, dev->video_dev->num);
1544         /* initial device configuration */
1545         mutex_lock(&dev->lock);
1546         cx23885_set_tvnorm(dev, dev->tvnorm);
1547         init_controls(dev);
1548         cx23885_video_mux(dev, 0);
1549         mutex_unlock(&dev->lock);
1550
1551         return 0;
1552
1553 fail_unreg:
1554         cx23885_video_unregister(dev);
1555         return err;
1556 }
1557