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/smp_lock.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/delay.h>
  32 #include <linux/kthread.h>
  33 #include <asm/div64.h>
  34
  35 #include "cx23885.h"
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38
  39 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  40 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  41 MODULE_LICENSE("GPL");
  42
  43 /* ------------------------------------------------------------------ */
  44
  45 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  46 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  47 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  48
  49 module_param_array(video_nr, int, NULL, 0444);
  50 module_param_array(vbi_nr,   int, NULL, 0444);
  51 module_param_array(radio_nr, int, NULL, 0444);
  52
  53 MODULE_PARM_DESC(video_nr, "video device numbers");
  54 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  55 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  56
  57 static unsigned int video_debug;
  58 module_param(video_debug, int, 0644);
  59 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  60
  61 static unsigned int irq_debug;
  62 module_param(irq_debug, int, 0644);
  63 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  64
  65 static unsigned int vid_limit = 16;
  66 module_param(vid_limit, int, 0644);
  67 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  68
  69 #define dprintk(level, fmt, arg...)\
  70         do { if (video_debug >= level)\
  71                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  72         } while (0)
  73
  74 /* ------------------------------------------------------------------- */
  75 /* static data                                                         */
  76
  77 #define FORMAT_FLAGS_PACKED       0x01
  78
  79 static struct cx23885_fmt formats[] = {
  80         {
  81                 .name     = "8 bpp, gray",
  82                 .fourcc   = V4L2_PIX_FMT_GREY,
  83                 .depth    = 8,
  84                 .flags    = FORMAT_FLAGS_PACKED,
  85         }, {
  86                 .name     = "15 bpp RGB, le",
  87                 .fourcc   = V4L2_PIX_FMT_RGB555,
  88                 .depth    = 16,
  89                 .flags    = FORMAT_FLAGS_PACKED,
  90         }, {
  91                 .name     = "15 bpp RGB, be",
  92                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  93                 .depth    = 16,
  94                 .flags    = FORMAT_FLAGS_PACKED,
  95         }, {
  96                 .name     = "16 bpp RGB, le",
  97                 .fourcc   = V4L2_PIX_FMT_RGB565,
  98                 .depth    = 16,
  99                 .flags    = FORMAT_FLAGS_PACKED,
 100         }, {
 101                 .name     = "16 bpp RGB, be",
 102                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 103                 .depth    = 16,
 104                 .flags    = FORMAT_FLAGS_PACKED,
 105         }, {
 106                 .name     = "24 bpp RGB, le",
 107                 .fourcc   = V4L2_PIX_FMT_BGR24,
 108                 .depth    = 24,
 109                 .flags    = FORMAT_FLAGS_PACKED,
 110         }, {
 111                 .name     = "32 bpp RGB, le",
 112                 .fourcc   = V4L2_PIX_FMT_BGR32,
 113                 .depth    = 32,
 114                 .flags    = FORMAT_FLAGS_PACKED,
 115         }, {
 116                 .name     = "32 bpp RGB, be",
 117                 .fourcc   = V4L2_PIX_FMT_RGB32,
 118                 .depth    = 32,
 119                 .flags    = FORMAT_FLAGS_PACKED,
 120         }, {
 121                 .name     = "4:2:2, packed, YUYV",
 122                 .fourcc   = V4L2_PIX_FMT_YUYV,
 123                 .depth    = 16,
 124                 .flags    = FORMAT_FLAGS_PACKED,
 125         }, {
 126                 .name     = "4:2:2, packed, UYVY",
 127                 .fourcc   = V4L2_PIX_FMT_UYVY,
 128                 .depth    = 16,
 129                 .flags    = FORMAT_FLAGS_PACKED,
 130         },
 131 };
 132
 133 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 134 {
 135         unsigned int i;
 136
 137         for (i = 0; i < ARRAY_SIZE(formats); i++)
 138                 if (formats[i].fourcc == fourcc)
 139                         return formats+i;
 140
 141         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 142         return NULL;
 143 }
 144
 145 /* ------------------------------------------------------------------- */
 146
 147 static const struct v4l2_queryctrl no_ctl = {
 148         .name  = "42",
 149         .flags = V4L2_CTRL_FLAG_DISABLED,
 150 };
 151
 152 static struct cx23885_ctrl cx23885_ctls[] = {
 153         /* --- video --- */
 154         {
 155                 .v = {
 156                         .id            = V4L2_CID_BRIGHTNESS,
 157                         .name          = "Brightness",
 158                         .minimum       = 0x00,
 159                         .maximum       = 0xff,
 160                         .step          = 1,
 161                         .default_value = 0x7f,
 162                         .type          = V4L2_CTRL_TYPE_INTEGER,
 163                 },
 164                 .off                   = 128,
 165                 .reg                   = LUMA_CTRL,
 166                 .mask                  = 0x00ff,
 167                 .shift                 = 0,
 168         }, {
 169                 .v = {
 170                         .id            = V4L2_CID_CONTRAST,
 171                         .name          = "Contrast",
 172                         .minimum       = 0,
 173                         .maximum       = 0xff,
 174                         .step          = 1,
 175                         .default_value = 0x3f,
 176                         .type          = V4L2_CTRL_TYPE_INTEGER,
 177                 },
 178                 .off                   = 0,
 179                 .reg                   = LUMA_CTRL,
 180                 .mask                  = 0xff00,
 181                 .shift                 = 8,
 182         }, {
 183                 .v = {
 184                         .id            = V4L2_CID_HUE,
 185                         .name          = "Hue",
 186                         .minimum       = 0,
 187                         .maximum       = 0xff,
 188                         .step          = 1,
 189                         .default_value = 0x7f,
 190                         .type          = V4L2_CTRL_TYPE_INTEGER,
 191                 },
 192                 .off                   = 128,
 193                 .reg                   = CHROMA_CTRL,
 194                 .mask                  = 0xff0000,
 195                 .shift                 = 16,
 196         }, {
 197                 /* strictly, this only describes only U saturation.
 198                  * V saturation is handled specially through code.
 199                  */
 200                 .v = {
 201                         .id            = V4L2_CID_SATURATION,
 202                         .name          = "Saturation",
 203                         .minimum       = 0,
 204                         .maximum       = 0xff,
 205                         .step          = 1,
 206                         .default_value = 0x7f,
 207                         .type          = V4L2_CTRL_TYPE_INTEGER,
 208                 },
 209                 .off                   = 0,
 210                 .reg                   = CHROMA_CTRL,
 211                 .mask                  = 0x00ff,
 212                 .shift                 = 0,
 213         }, {
 214         /* --- audio --- */
 215                 .v = {
 216                         .id            = V4L2_CID_AUDIO_MUTE,
 217                         .name          = "Mute",
 218                         .minimum       = 0,
 219                         .maximum       = 1,
 220                         .default_value = 1,
 221                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 222                 },
 223                 .reg                   = PATH1_CTL1,
 224                 .mask                  = (0x1f << 24),
 225                 .shift                 = 24,
 226         }, {
 227                 .v = {
 228                         .id            = V4L2_CID_AUDIO_VOLUME,
 229                         .name          = "Volume",
 230                         .minimum       = 0,
 231                         .maximum       = 0x3f,
 232                         .step          = 1,
 233                         .default_value = 0x3f,
 234                         .type          = V4L2_CTRL_TYPE_INTEGER,
 235                 },
 236                 .reg                   = PATH1_VOL_CTL,
 237                 .mask                  = 0xff,
 238                 .shift                 = 0,
 239         }
 240 };
 241 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 242
 243 /* Must be sorted from low to high control ID! */
 244 static const u32 cx23885_user_ctrls[] = {
 245         V4L2_CID_USER_CLASS,
 246         V4L2_CID_BRIGHTNESS,
 247         V4L2_CID_CONTRAST,
 248         V4L2_CID_SATURATION,
 249         V4L2_CID_HUE,
 250         V4L2_CID_AUDIO_VOLUME,
 251         V4L2_CID_AUDIO_MUTE,
 252         0
 253 };
 254
 255 static const u32 *ctrl_classes[] = {
 256         cx23885_user_ctrls,
 257         NULL
 258 };
 259
 260 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 261                  struct cx23885_dmaqueue *q, u32 count)
 262 {
 263         struct cx23885_buffer *buf;
 264         int bc;
 265
 266         for (bc = 0;; bc++) {
 267                 if (list_empty(&q->active))
 268                         break;
 269                 buf = list_entry(q->active.next,
 270                                  struct cx23885_buffer, vb.queue);
 271
 272                 /* count comes from the hw and is is 16bit wide --
 273                  * this trick handles wrap-arounds correctly for
 274                  * up to 32767 buffers in flight... */
 275                 if ((s16) (count - buf->count) < 0)
 276                         break;
 277
 278                 do_gettimeofday(&buf->vb.ts);
 279                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 280                         count, buf->count);
 281                 buf->vb.state = VIDEOBUF_DONE;
 282                 list_del(&buf->vb.queue);
 283                 wake_up(&buf->vb.done);
 284         }
 285         if (list_empty(&q->active))
 286                 del_timer(&q->timeout);
 287         else
 288                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 289         if (bc != 1)
 290                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 291                         __func__, bc);
 292 }
 293
 294 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 295 {
 296         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 297                 __func__,
 298                 (unsigned int)norm,
 299                 v4l2_norm_to_name(norm));
 300
 301         dev->tvnorm = norm;
 302
 303         call_all(dev, core, s_std, norm);
 304
 305         return 0;
 306 }
 307
 308 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 309                                     struct pci_dev *pci,
 310                                     struct video_device *template,
 311                                     char *type)
 312 {
 313         struct video_device *vfd;
 314         dprintk(1, "%s()\n", __func__);
 315
 316         vfd = video_device_alloc();
 317         if (NULL == vfd)
 318                 return NULL;
 319         *vfd = *template;
 320         vfd->minor = -1;
 321         vfd->v4l2_dev = &dev->v4l2_dev;
 322         vfd->release = video_device_release;
 323         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 324                  dev->name, type, cx23885_boards[dev->board].name);
 325         return vfd;
 326 }
 327
 328 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 329 {
 330         int i;
 331
 332         if (qctrl->id < V4L2_CID_BASE ||
 333             qctrl->id >= V4L2_CID_LASTP1)
 334                 return -EINVAL;
 335         for (i = 0; i < CX23885_CTLS; i++)
 336                 if (cx23885_ctls[i].v.id == qctrl->id)
 337                         break;
 338         if (i == CX23885_CTLS) {
 339                 *qctrl = no_ctl;
 340                 return 0;
 341         }
 342         *qctrl = cx23885_ctls[i].v;
 343         return 0;
 344 }
 345
 346 /* ------------------------------------------------------------------- */
 347 /* resource management                                                 */
 348
 349 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 350         unsigned int bit)
 351 {
 352         dprintk(1, "%s()\n", __func__);
 353         if (fh->resources & bit)
 354                 /* have it already allocated */
 355                 return 1;
 356
 357         /* is it free? */
 358         mutex_lock(&dev->lock);
 359         if (dev->resources & bit) {
 360                 /* no, someone else uses it */
 361                 mutex_unlock(&dev->lock);
 362                 return 0;
 363         }
 364         /* it's free, grab it */
 365         fh->resources  |= bit;
 366         dev->resources |= bit;
 367         dprintk(1, "res: get %d\n", bit);
 368         mutex_unlock(&dev->lock);
 369         return 1;
 370 }
 371
 372 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 373 {
 374         return fh->resources & bit;
 375 }
 376
 377 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 378 {
 379         return dev->resources & bit;
 380 }
 381
 382 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 383         unsigned int bits)
 384 {
 385         BUG_ON((fh->resources & bits) != bits);
 386         dprintk(1, "%s()\n", __func__);
 387
 388         mutex_lock(&dev->lock);
 389         fh->resources  &= ~bits;
 390         dev->resources &= ~bits;
 391         dprintk(1, "res: put %d\n", bits);
 392         mutex_unlock(&dev->lock);
 393 }
 394
 395 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 396 {
 397         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 398                 __func__,
 399                 input, INPUT(input)->vmux,
 400                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 401                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 402         dev->input = input;
 403
 404         /* Tell the internal A/V decoder */
 405         v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
 406                         INPUT(input)->vmux, 0, 0);
 407
 408         return 0;
 409 }
 410
 411 /* ------------------------------------------------------------------ */
 412 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 413         unsigned int height, enum v4l2_field field)
 414 {
 415         dprintk(1, "%s()\n", __func__);
 416         return 0;
 417 }
 418
 419 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 420                            struct cx23885_dmaqueue *q,
 421                            struct cx23885_buffer *buf)
 422 {
 423         dprintk(1, "%s()\n", __func__);
 424
 425         /* setup fifo + format */
 426         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 427                                 buf->bpl, buf->risc.dma);
 428         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 429
 430         /* reset counter */
 431         cx_write(VID_A_GPCNT_CTL, 3);
 432         q->count = 1;
 433
 434         /* enable irq */
 435         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 436         cx_set(VID_A_INT_MSK, 0x000011);
 437
 438         /* start dma */
 439         cx_set(DEV_CNTRL2, (1<<5));
 440         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 441
 442         return 0;
 443 }
 444
 445
 446 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 447                                struct cx23885_dmaqueue *q)
 448 {
 449         struct cx23885_buffer *buf, *prev;
 450         struct list_head *item;
 451         dprintk(1, "%s()\n", __func__);
 452
 453         if (!list_empty(&q->active)) {
 454                 buf = list_entry(q->active.next, struct cx23885_buffer,
 455                         vb.queue);
 456                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 457                         buf, buf->vb.i);
 458                 cx23885_start_video_dma(dev, q, buf);
 459                 list_for_each(item, &q->active) {
 460                         buf = list_entry(item, struct cx23885_buffer,
 461                                 vb.queue);
 462                         buf->count    = q->count++;
 463                 }
 464                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 465                 return 0;
 466         }
 467
 468         prev = NULL;
 469         for (;;) {
 470                 if (list_empty(&q->queued))
 471                         return 0;
 472                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 473                         vb.queue);
 474                 if (NULL == prev) {
 475                         list_move_tail(&buf->vb.queue, &q->active);
 476                         cx23885_start_video_dma(dev, q, buf);
 477                         buf->vb.state = VIDEOBUF_ACTIVE;
 478                         buf->count    = q->count++;
 479                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 480                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 481                                 buf, buf->vb.i);
 482
 483                 } else if (prev->vb.width  == buf->vb.width  &&
 484                            prev->vb.height == buf->vb.height &&
 485                            prev->fmt       == buf->fmt) {
 486                         list_move_tail(&buf->vb.queue, &q->active);
 487                         buf->vb.state = VIDEOBUF_ACTIVE;
 488                         buf->count    = q->count++;
 489                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 490                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 491                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 492                                 buf, buf->vb.i);
 493                 } else {
 494                         return 0;
 495                 }
 496                 prev = buf;
 497         }
 498 }
 499
 500 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 501         unsigned int *size)
 502 {
 503         struct cx23885_fh *fh = q->priv_data;
 504
 505         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 506         if (0 == *count)
 507                 *count = 32;
 508         while (*size * *count > vid_limit * 1024 * 1024)
 509                 (*count)--;
 510         return 0;
 511 }
 512
 513 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 514                enum v4l2_field field)
 515 {
 516         struct cx23885_fh *fh  = q->priv_data;
 517         struct cx23885_dev *dev = fh->dev;
 518         struct cx23885_buffer *buf =
 519                 container_of(vb, struct cx23885_buffer, vb);
 520         int rc, init_buffer = 0;
 521         u32 line0_offset, line1_offset;
 522         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 523
 524         BUG_ON(NULL == fh->fmt);
 525         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 526             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 527                 return -EINVAL;
 528         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 529         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 530                 return -EINVAL;
 531
 532         if (buf->fmt       != fh->fmt    ||
 533             buf->vb.width  != fh->width  ||
 534             buf->vb.height != fh->height ||
 535             buf->vb.field  != field) {
 536                 buf->fmt       = fh->fmt;
 537                 buf->vb.width  = fh->width;
 538                 buf->vb.height = fh->height;
 539                 buf->vb.field  = field;
 540                 init_buffer = 1;
 541         }
 542
 543         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 544                 init_buffer = 1;
 545                 rc = videobuf_iolock(q, &buf->vb, NULL);
 546                 if (0 != rc)
 547                         goto fail;
 548         }
 549
 550         if (init_buffer) {
 551                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 552                 switch (buf->vb.field) {
 553                 case V4L2_FIELD_TOP:
 554                         cx23885_risc_buffer(dev->pci, &buf->risc,
 555                                          dma->sglist, 0, UNSET,
 556                                          buf->bpl, 0, buf->vb.height);
 557                         break;
 558                 case V4L2_FIELD_BOTTOM:
 559                         cx23885_risc_buffer(dev->pci, &buf->risc,
 560                                          dma->sglist, UNSET, 0,
 561                                          buf->bpl, 0, buf->vb.height);
 562                         break;
 563                 case V4L2_FIELD_INTERLACED:
 564                         if (dev->tvnorm & V4L2_STD_NTSC) {
 565                                 /* cx25840 transmits NTSC bottom field first */
 566                                 dprintk(1, "%s() Creating NTSC risc\n",
 567                                         __func__);
 568                                 line0_offset = buf->bpl;
 569                                 line1_offset = 0;
 570                         } else {
 571                                 /* All other formats are top field first */
 572                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 573                                         __func__);
 574                                 line0_offset = 0;
 575                                 line1_offset = buf->bpl;
 576                         }
 577                         cx23885_risc_buffer(dev->pci, &buf->risc,
 578                                         dma->sglist, line0_offset,
 579                                         line1_offset,
 580                                         buf->bpl, buf->bpl,
 581                                         buf->vb.height >> 1);
 582                         break;
 583                 case V4L2_FIELD_SEQ_TB:
 584                         cx23885_risc_buffer(dev->pci, &buf->risc,
 585                                          dma->sglist,
 586                                          0, buf->bpl * (buf->vb.height >> 1),
 587                                          buf->bpl, 0,
 588                                          buf->vb.height >> 1);
 589                         break;
 590                 case V4L2_FIELD_SEQ_BT:
 591                         cx23885_risc_buffer(dev->pci, &buf->risc,
 592                                          dma->sglist,
 593                                          buf->bpl * (buf->vb.height >> 1), 0,
 594                                          buf->bpl, 0,
 595                                          buf->vb.height >> 1);
 596                         break;
 597                 default:
 598                         BUG();
 599                 }
 600         }
 601         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 602                 buf, buf->vb.i,
 603                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 604                 (unsigned long)buf->risc.dma);
 605
 606         buf->vb.state = VIDEOBUF_PREPARED;
 607         return 0;
 608
 609  fail:
 610         cx23885_free_buffer(q, buf);
 611         return rc;
 612 }
 613
 614 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 615 {
 616         struct cx23885_buffer   *buf = container_of(vb,
 617                 struct cx23885_buffer, vb);
 618         struct cx23885_buffer   *prev;
 619         struct cx23885_fh       *fh   = vq->priv_data;
 620         struct cx23885_dev      *dev  = fh->dev;
 621         struct cx23885_dmaqueue *q    = &dev->vidq;
 622
 623         /* add jump to stopper */
 624         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 625         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 626         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 627
 628         if (!list_empty(&q->queued)) {
 629                 list_add_tail(&buf->vb.queue, &q->queued);
 630                 buf->vb.state = VIDEOBUF_QUEUED;
 631                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 632                         buf, buf->vb.i);
 633
 634         } else if (list_empty(&q->active)) {
 635                 list_add_tail(&buf->vb.queue, &q->active);
 636                 cx23885_start_video_dma(dev, q, buf);
 637                 buf->vb.state = VIDEOBUF_ACTIVE;
 638                 buf->count    = q->count++;
 639                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 640                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 641                         buf, buf->vb.i);
 642
 643         } else {
 644                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 645                         vb.queue);
 646                 if (prev->vb.width  == buf->vb.width  &&
 647                     prev->vb.height == buf->vb.height &&
 648                     prev->fmt       == buf->fmt) {
 649                         list_add_tail(&buf->vb.queue, &q->active);
 650                         buf->vb.state = VIDEOBUF_ACTIVE;
 651                         buf->count    = q->count++;
 652                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 653                         /* 64 bit bits 63-32 */
 654                         prev->risc.jmp[2] = cpu_to_le32(0);
 655                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 656                                 buf, buf->vb.i);
 657
 658                 } else {
 659                         list_add_tail(&buf->vb.queue, &q->queued);
 660                         buf->vb.state = VIDEOBUF_QUEUED;
 661                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 662                                 buf, buf->vb.i);
 663                 }
 664         }
 665 }
 666
 667 static void buffer_release(struct videobuf_queue *q,
 668         struct videobuf_buffer *vb)
 669 {
 670         struct cx23885_buffer *buf = container_of(vb,
 671                 struct cx23885_buffer, vb);
 672
 673         cx23885_free_buffer(q, buf);
 674 }
 675
 676 static struct videobuf_queue_ops cx23885_video_qops = {
 677         .buf_setup    = buffer_setup,
 678         .buf_prepare  = buffer_prepare,
 679         .buf_queue    = buffer_queue,
 680         .buf_release  = buffer_release,
 681 };
 682
 683 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 684 {
 685         switch (fh->type) {
 686         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 687                 return &fh->vidq;
 688         case V4L2_BUF_TYPE_VBI_CAPTURE:
 689                 return &fh->vbiq;
 690         default:
 691                 BUG();
 692                 return NULL;
 693         }
 694 }
 695
 696 static int get_resource(struct cx23885_fh *fh)
 697 {
 698         switch (fh->type) {
 699         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 700                 return RESOURCE_VIDEO;
 701         case V4L2_BUF_TYPE_VBI_CAPTURE:
 702                 return RESOURCE_VBI;
 703         default:
 704                 BUG();
 705                 return 0;
 706         }
 707 }
 708
 709 static int video_open(struct file *file)
 710 {
 711         int minor = video_devdata(file)->minor;
 712         struct cx23885_dev *h, *dev = NULL;
 713         struct cx23885_fh *fh;
 714         struct list_head *list;
 715         enum v4l2_buf_type type = 0;
 716         int radio = 0;
 717
 718         lock_kernel();
 719         list_for_each(list, &cx23885_devlist) {
 720                 h = list_entry(list, struct cx23885_dev, devlist);
 721                 if (h->video_dev &&
 722                     h->video_dev->minor == minor) {
 723                         dev  = h;
 724                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 725                 }
 726                 if (h->vbi_dev &&
 727                     h->vbi_dev->minor == minor) {
 728                         dev  = h;
 729                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 730                 }
 731                 if (h->radio_dev &&
 732                     h->radio_dev->minor == minor) {
 733                         radio = 1;
 734                         dev   = h;
 735                 }
 736         }
 737         if (NULL == dev) {
 738                 unlock_kernel();
 739                 return -ENODEV;
 740         }
 741
 742         dprintk(1, "open minor=%d radio=%d type=%s\n",
 743                 minor, radio, v4l2_type_names[type]);
 744
 745         /* allocate + initialize per filehandle data */
 746         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 747         if (NULL == fh) {
 748                 unlock_kernel();
 749                 return -ENOMEM;
 750         }
 751         file->private_data = fh;
 752         fh->dev      = dev;
 753         fh->radio    = radio;
 754         fh->type     = type;
 755         fh->width    = 320;
 756         fh->height   = 240;
 757         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 758
 759         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 760                             &dev->pci->dev, &dev->slock,
 761                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 762                             V4L2_FIELD_INTERLACED,
 763                             sizeof(struct cx23885_buffer),
 764                             fh);
 765
 766         dprintk(1, "post videobuf_queue_init()\n");
 767
 768         unlock_kernel();
 769
 770         return 0;
 771 }
 772
 773 static ssize_t video_read(struct file *file, char __user *data,
 774         size_t count, loff_t *ppos)
 775 {
 776         struct cx23885_fh *fh = file->private_data;
 777
 778         switch (fh->type) {
 779         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 780                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 781                         return -EBUSY;
 782                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 783                                          file->f_flags & O_NONBLOCK);
 784         case V4L2_BUF_TYPE_VBI_CAPTURE:
 785                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 786                         return -EBUSY;
 787                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 788                                             file->f_flags & O_NONBLOCK);
 789         default:
 790                 BUG();
 791                 return 0;
 792         }
 793 }
 794
 795 static unsigned int video_poll(struct file *file,
 796         struct poll_table_struct *wait)
 797 {
 798         struct cx23885_fh *fh = file->private_data;
 799         struct cx23885_buffer *buf;
 800         unsigned int rc = POLLERR;
 801
 802         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 803                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 804                         return POLLERR;
 805                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 806         }
 807
 808         mutex_lock(&fh->vidq.vb_lock);
 809         if (res_check(fh, RESOURCE_VIDEO)) {
 810                 /* streaming capture */
 811                 if (list_empty(&fh->vidq.stream))
 812                         goto done;
 813                 buf = list_entry(fh->vidq.stream.next,
 814                         struct cx23885_buffer, vb.stream);
 815         } else {
 816                 /* read() capture */
 817                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 818                 if (NULL == buf)
 819                         goto done;
 820         }
 821         poll_wait(file, &buf->vb.done, wait);
 822         if (buf->vb.state == VIDEOBUF_DONE ||
 823             buf->vb.state == VIDEOBUF_ERROR)
 824                 rc =  POLLIN|POLLRDNORM;
 825         else
 826                 rc = 0;
 827 done:
 828         mutex_unlock(&fh->vidq.vb_lock);
 829         return rc;
 830 }
 831
 832 static int video_release(struct file *file)
 833 {
 834         struct cx23885_fh *fh = file->private_data;
 835         struct cx23885_dev *dev = fh->dev;
 836
 837         /* turn off overlay */
 838         if (res_check(fh, RESOURCE_OVERLAY)) {
 839                 /* FIXME */
 840                 res_free(dev, fh, RESOURCE_OVERLAY);
 841         }
 842
 843         /* stop video capture */
 844         if (res_check(fh, RESOURCE_VIDEO)) {
 845                 videobuf_queue_cancel(&fh->vidq);
 846                 res_free(dev, fh, RESOURCE_VIDEO);
 847         }
 848         if (fh->vidq.read_buf) {
 849                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 850                 kfree(fh->vidq.read_buf);
 851         }
 852
 853         /* stop vbi capture */
 854         if (res_check(fh, RESOURCE_VBI)) {
 855                 if (fh->vbiq.streaming)
 856                         videobuf_streamoff(&fh->vbiq);
 857                 if (fh->vbiq.reading)
 858                         videobuf_read_stop(&fh->vbiq);
 859                 res_free(dev, fh, RESOURCE_VBI);
 860         }
 861
 862         videobuf_mmap_free(&fh->vidq);
 863         file->private_data = NULL;
 864         kfree(fh);
 865
 866         /* We are not putting the tuner to sleep here on exit, because
 867          * we want to use the mpeg encoder in another session to capture
 868          * tuner video. Closing this will result in no video to the encoder.
 869          */
 870
 871         return 0;
 872 }
 873
 874 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 875 {
 876         struct cx23885_fh *fh = file->private_data;
 877
 878         return videobuf_mmap_mapper(get_queue(fh), vma);
 879 }
 880
 881 /* ------------------------------------------------------------------ */
 882 /* VIDEO CTRL IOCTLS                                                  */
 883
 884 static int cx23885_get_control(struct cx23885_dev *dev,
 885         struct v4l2_control *ctl)
 886 {
 887         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 888         call_all(dev, core, g_ctrl, ctl);
 889         return 0;
 890 }
 891
 892 static int cx23885_set_control(struct cx23885_dev *dev,
 893         struct v4l2_control *ctl)
 894 {
 895         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 896                 " (disabled - no action)\n", __func__);
 897         return 0;
 898 }
 899
 900 static void init_controls(struct cx23885_dev *dev)
 901 {
 902         struct v4l2_control ctrl;
 903         int i;
 904
 905         for (i = 0; i < CX23885_CTLS; i++) {
 906                 ctrl.id = cx23885_ctls[i].v.id;
 907                 ctrl.value = cx23885_ctls[i].v.default_value;
 908
 909                 cx23885_set_control(dev, &ctrl);
 910         }
 911 }
 912
 913 /* ------------------------------------------------------------------ */
 914 /* VIDEO IOCTLS                                                       */
 915
 916 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 917         struct v4l2_format *f)
 918 {
 919         struct cx23885_fh *fh   = priv;
 920
 921         f->fmt.pix.width        = fh->width;
 922         f->fmt.pix.height       = fh->height;
 923         f->fmt.pix.field        = fh->vidq.field;
 924         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 925         f->fmt.pix.bytesperline =
 926                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 927         f->fmt.pix.sizeimage =
 928                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 929
 930         return 0;
 931 }
 932
 933 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 934         struct v4l2_format *f)
 935 {
 936         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 937         struct cx23885_fmt *fmt;
 938         enum v4l2_field   field;
 939         unsigned int      maxw, maxh;
 940
 941         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 942         if (NULL == fmt)
 943                 return -EINVAL;
 944
 945         field = f->fmt.pix.field;
 946         maxw  = norm_maxw(dev->tvnorm);
 947         maxh  = norm_maxh(dev->tvnorm);
 948
 949         if (V4L2_FIELD_ANY == field) {
 950                 field = (f->fmt.pix.height > maxh/2)
 951                         ? V4L2_FIELD_INTERLACED
 952                         : V4L2_FIELD_BOTTOM;
 953         }
 954
 955         switch (field) {
 956         case V4L2_FIELD_TOP:
 957         case V4L2_FIELD_BOTTOM:
 958                 maxh = maxh / 2;
 959                 break;
 960         case V4L2_FIELD_INTERLACED:
 961                 break;
 962         default:
 963                 return -EINVAL;
 964         }
 965
 966         f->fmt.pix.field = field;
 967         v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
 968                               &f->fmt.pix.height, 32, maxh, 0, 0);
 969         f->fmt.pix.bytesperline =
 970                 (f->fmt.pix.width * fmt->depth) >> 3;
 971         f->fmt.pix.sizeimage =
 972                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 973
 974         return 0;
 975 }
 976
 977 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 978         struct v4l2_format *f)
 979 {
 980         struct cx23885_fh *fh = priv;
 981         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 982         int err;
 983
 984         dprintk(2, "%s()\n", __func__);
 985         err = vidioc_try_fmt_vid_cap(file, priv, f);
 986
 987         if (0 != err)
 988                 return err;
 989         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 990         fh->width      = f->fmt.pix.width;
 991         fh->height     = f->fmt.pix.height;
 992         fh->vidq.field = f->fmt.pix.field;
 993         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
 994                 fh->width, fh->height, fh->vidq.field);
 995         call_all(dev, video, s_fmt, f);
 996         return 0;
 997 }
 998
 999 static int vidioc_querycap(struct file *file, void  *priv,
1000         struct v4l2_capability *cap)
1001 {
1002         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1003
1004         strcpy(cap->driver, "cx23885");
1005         strlcpy(cap->card, cx23885_boards[dev->board].name,
1006                 sizeof(cap->card));
1007         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1008         cap->version = CX23885_VERSION_CODE;
1009         cap->capabilities =
1010                 V4L2_CAP_VIDEO_CAPTURE |
1011                 V4L2_CAP_READWRITE     |
1012                 V4L2_CAP_STREAMING     |
1013                 V4L2_CAP_VBI_CAPTURE;
1014         if (UNSET != dev->tuner_type)
1015                 cap->capabilities |= V4L2_CAP_TUNER;
1016         return 0;
1017 }
1018
1019 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1020         struct v4l2_fmtdesc *f)
1021 {
1022         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1023                 return -EINVAL;
1024
1025         strlcpy(f->description, formats[f->index].name,
1026                 sizeof(f->description));
1027         f->pixelformat = formats[f->index].fourcc;
1028
1029         return 0;
1030 }
1031
1032 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1033 static int vidiocgmbuf(struct file *file, void *priv,
1034         struct video_mbuf *mbuf)
1035 {
1036         struct cx23885_fh *fh = priv;
1037         struct videobuf_queue *q;
1038         struct v4l2_requestbuffers req;
1039         unsigned int i;
1040         int err;
1041
1042         q = get_queue(fh);
1043         memset(&req, 0, sizeof(req));
1044         req.type   = q->type;
1045         req.count  = 8;
1046         req.memory = V4L2_MEMORY_MMAP;
1047         err = videobuf_reqbufs(q, &req);
1048         if (err < 0)
1049                 return err;
1050
1051         mbuf->frames = req.count;
1052         mbuf->size   = 0;
1053         for (i = 0; i < mbuf->frames; i++) {
1054                 mbuf->offsets[i]  = q->bufs[i]->boff;
1055                 mbuf->size       += q->bufs[i]->bsize;
1056         }
1057         return 0;
1058 }
1059 #endif
1060
1061 static int vidioc_reqbufs(struct file *file, void *priv,
1062         struct v4l2_requestbuffers *p)
1063 {
1064         struct cx23885_fh *fh = priv;
1065         return videobuf_reqbufs(get_queue(fh), p);
1066 }
1067
1068 static int vidioc_querybuf(struct file *file, void *priv,
1069         struct v4l2_buffer *p)
1070 {
1071         struct cx23885_fh *fh = priv;
1072         return videobuf_querybuf(get_queue(fh), p);
1073 }
1074
1075 static int vidioc_qbuf(struct file *file, void *priv,
1076         struct v4l2_buffer *p)
1077 {
1078         struct cx23885_fh *fh = priv;
1079         return videobuf_qbuf(get_queue(fh), p);
1080 }
1081
1082 static int vidioc_dqbuf(struct file *file, void *priv,
1083         struct v4l2_buffer *p)
1084 {
1085         struct cx23885_fh *fh = priv;
1086         return videobuf_dqbuf(get_queue(fh), p,
1087                                 file->f_flags & O_NONBLOCK);
1088 }
1089
1090 static int vidioc_streamon(struct file *file, void *priv,
1091         enum v4l2_buf_type i)
1092 {
1093         struct cx23885_fh *fh = priv;
1094         struct cx23885_dev *dev = fh->dev;
1095         dprintk(1, "%s()\n", __func__);
1096
1097         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1098                 return -EINVAL;
1099         if (unlikely(i != fh->type))
1100                 return -EINVAL;
1101
1102         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1103                 return -EBUSY;
1104         return videobuf_streamon(get_queue(fh));
1105 }
1106
1107 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1108 {
1109         struct cx23885_fh *fh = priv;
1110         struct cx23885_dev *dev = fh->dev;
1111         int err, res;
1112         dprintk(1, "%s()\n", __func__);
1113
1114         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1115                 return -EINVAL;
1116         if (i != fh->type)
1117                 return -EINVAL;
1118
1119         res = get_resource(fh);
1120         err = videobuf_streamoff(get_queue(fh));
1121         if (err < 0)
1122                 return err;
1123         res_free(dev, fh, res);
1124         return 0;
1125 }
1126
1127 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1128 {
1129         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1130         dprintk(1, "%s()\n", __func__);
1131
1132         mutex_lock(&dev->lock);
1133         cx23885_set_tvnorm(dev, *tvnorms);
1134         mutex_unlock(&dev->lock);
1135
1136         return 0;
1137 }
1138
1139 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1140 {
1141         static const char *iname[] = {
1142                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1143                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1144                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1145                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1146                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1147                 [CX23885_VMUX_TELEVISION] = "Television",
1148                 [CX23885_VMUX_CABLE]      = "Cable TV",
1149                 [CX23885_VMUX_DVB]        = "DVB",
1150                 [CX23885_VMUX_DEBUG]      = "for debug only",
1151         };
1152         unsigned int n;
1153         dprintk(1, "%s()\n", __func__);
1154
1155         n = i->index;
1156         if (n >= 4)
1157                 return -EINVAL;
1158
1159         if (0 == INPUT(n)->type)
1160                 return -EINVAL;
1161
1162         memset(i, 0, sizeof(*i));
1163         i->index = n;
1164         i->type  = V4L2_INPUT_TYPE_CAMERA;
1165         strcpy(i->name, iname[INPUT(n)->type]);
1166         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1167                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1168                 i->type = V4L2_INPUT_TYPE_TUNER;
1169                 i->std = CX23885_NORMS;
1170         return 0;
1171 }
1172
1173 static int vidioc_enum_input(struct file *file, void *priv,
1174                                 struct v4l2_input *i)
1175 {
1176         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1177         dprintk(1, "%s()\n", __func__);
1178         return cx23885_enum_input(dev, i);
1179 }
1180
1181 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1182 {
1183         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1184
1185         *i = dev->input;
1186         dprintk(1, "%s() returns %d\n", __func__, *i);
1187         return 0;
1188 }
1189
1190 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1191 {
1192         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1193
1194         dprintk(1, "%s(%d)\n", __func__, i);
1195
1196         if (i >= 4) {
1197                 dprintk(1, "%s() -EINVAL\n", __func__);
1198                 return -EINVAL;
1199         }
1200
1201         mutex_lock(&dev->lock);
1202         cx23885_video_mux(dev, i);
1203         mutex_unlock(&dev->lock);
1204         return 0;
1205 }
1206
1207 static int vidioc_queryctrl(struct file *file, void *priv,
1208                                 struct v4l2_queryctrl *qctrl)
1209 {
1210         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1211         if (unlikely(qctrl->id == 0))
1212                 return -EINVAL;
1213         return cx23885_ctrl_query(qctrl);
1214 }
1215
1216 static int vidioc_g_ctrl(struct file *file, void *priv,
1217                                 struct v4l2_control *ctl)
1218 {
1219         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1220
1221         return cx23885_get_control(dev, ctl);
1222 }
1223
1224 static int vidioc_s_ctrl(struct file *file, void *priv,
1225                                 struct v4l2_control *ctl)
1226 {
1227         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1228
1229         return cx23885_set_control(dev, ctl);
1230 }
1231
1232 static int vidioc_g_tuner(struct file *file, void *priv,
1233                                 struct v4l2_tuner *t)
1234 {
1235         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1236
1237         if (unlikely(UNSET == dev->tuner_type))
1238                 return -EINVAL;
1239         if (0 != t->index)
1240                 return -EINVAL;
1241
1242         strcpy(t->name, "Television");
1243         t->type       = V4L2_TUNER_ANALOG_TV;
1244         t->capability = V4L2_TUNER_CAP_NORM;
1245         t->rangehigh  = 0xffffffffUL;
1246         t->signal = 0xffff ; /* LOCKED */
1247         return 0;
1248 }
1249
1250 static int vidioc_s_tuner(struct file *file, void *priv,
1251                                 struct v4l2_tuner *t)
1252 {
1253         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1254
1255         if (UNSET == dev->tuner_type)
1256                 return -EINVAL;
1257         if (0 != t->index)
1258                 return -EINVAL;
1259         return 0;
1260 }
1261
1262 static int vidioc_g_frequency(struct file *file, void *priv,
1263                                 struct v4l2_frequency *f)
1264 {
1265         struct cx23885_fh *fh = priv;
1266         struct cx23885_dev *dev = fh->dev;
1267
1268         if (unlikely(UNSET == dev->tuner_type))
1269                 return -EINVAL;
1270
1271         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1272         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1273         f->frequency = dev->freq;
1274
1275         call_all(dev, tuner, g_frequency, f);
1276
1277         return 0;
1278 }
1279
1280 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1281 {
1282         if (unlikely(UNSET == dev->tuner_type))
1283                 return -EINVAL;
1284         if (unlikely(f->tuner != 0))
1285                 return -EINVAL;
1286
1287         mutex_lock(&dev->lock);
1288         dev->freq = f->frequency;
1289
1290         call_all(dev, tuner, s_frequency, f);
1291
1292         /* When changing channels it is required to reset TVAUDIO */
1293         msleep(10);
1294
1295         mutex_unlock(&dev->lock);
1296
1297         return 0;
1298 }
1299
1300 static int vidioc_s_frequency(struct file *file, void *priv,
1301                                 struct v4l2_frequency *f)
1302 {
1303         struct cx23885_fh *fh = priv;
1304         struct cx23885_dev *dev = fh->dev;
1305
1306         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1307                 return -EINVAL;
1308         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1309                 return -EINVAL;
1310
1311         return
1312                 cx23885_set_freq(dev, f);
1313 }
1314
1315 #ifdef CONFIG_VIDEO_ADV_DEBUG
1316 static int vidioc_g_register(struct file *file, void *fh,
1317                                 struct v4l2_dbg_register *reg)
1318 {
1319         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1320
1321         if (!v4l2_chip_match_host(&reg->match))
1322                 return -EINVAL;
1323
1324         call_all(dev, core, g_register, reg);
1325
1326         return 0;
1327 }
1328
1329 static int vidioc_s_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         call_all(dev, core, s_register, reg);
1338
1339         return 0;
1340 }
1341 #endif
1342
1343 /* ----------------------------------------------------------- */
1344
1345 static void cx23885_vid_timeout(unsigned long data)
1346 {
1347         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1348         struct cx23885_dmaqueue *q = &dev->vidq;
1349         struct cx23885_buffer *buf;
1350         unsigned long flags;
1351
1352         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1353
1354         cx_clear(VID_A_DMA_CTL, 0x11);
1355
1356         spin_lock_irqsave(&dev->slock, flags);
1357         while (!list_empty(&q->active)) {
1358                 buf = list_entry(q->active.next,
1359                         struct cx23885_buffer, vb.queue);
1360                 list_del(&buf->vb.queue);
1361                 buf->vb.state = VIDEOBUF_ERROR;
1362                 wake_up(&buf->vb.done);
1363                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1364                         dev->name, buf, buf->vb.i,
1365                         (unsigned long)buf->risc.dma);
1366         }
1367         cx23885_restart_video_queue(dev, q);
1368         spin_unlock_irqrestore(&dev->slock, flags);
1369 }
1370
1371 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1372 {
1373         u32 mask, count;
1374         int handled = 0;
1375
1376         mask   = cx_read(VID_A_INT_MSK);
1377         if (0 == (status & mask))
1378                 return handled;
1379         cx_write(VID_A_INT_STAT, status);
1380
1381         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1382         /* risc op code error */
1383         if (status & (1 << 16)) {
1384                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1385                         dev->name);
1386                 cx_clear(VID_A_DMA_CTL, 0x11);
1387                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1388         }
1389
1390         /* risc1 y */
1391         if (status & 0x01) {
1392                 spin_lock(&dev->slock);
1393                 count = cx_read(VID_A_GPCNT);
1394                 cx23885_video_wakeup(dev, &dev->vidq, count);
1395                 spin_unlock(&dev->slock);
1396                 handled++;
1397         }
1398         /* risc2 y */
1399         if (status & 0x10) {
1400                 dprintk(2, "stopper video\n");
1401                 spin_lock(&dev->slock);
1402                 cx23885_restart_video_queue(dev, &dev->vidq);
1403                 spin_unlock(&dev->slock);
1404                 handled++;
1405         }
1406
1407         return handled;
1408 }
1409
1410 /* ----------------------------------------------------------- */
1411 /* exported stuff                                              */
1412
1413 static const struct v4l2_file_operations video_fops = {
1414         .owner         = THIS_MODULE,
1415         .open          = video_open,
1416         .release       = video_release,
1417         .read          = video_read,
1418         .poll          = video_poll,
1419         .mmap          = video_mmap,
1420         .ioctl         = video_ioctl2,
1421 };
1422
1423 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1424         .vidioc_querycap      = vidioc_querycap,
1425         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1426         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1427         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1428         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1429         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1430         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1431         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1432         .vidioc_reqbufs       = vidioc_reqbufs,
1433         .vidioc_querybuf      = vidioc_querybuf,
1434         .vidioc_qbuf          = vidioc_qbuf,
1435         .vidioc_dqbuf         = vidioc_dqbuf,
1436         .vidioc_s_std         = vidioc_s_std,
1437         .vidioc_enum_input    = vidioc_enum_input,
1438         .vidioc_g_input       = vidioc_g_input,
1439         .vidioc_s_input       = vidioc_s_input,
1440         .vidioc_queryctrl     = vidioc_queryctrl,
1441         .vidioc_g_ctrl        = vidioc_g_ctrl,
1442         .vidioc_s_ctrl        = vidioc_s_ctrl,
1443         .vidioc_streamon      = vidioc_streamon,
1444         .vidioc_streamoff     = vidioc_streamoff,
1445 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1446         .vidiocgmbuf          = vidiocgmbuf,
1447 #endif
1448         .vidioc_g_tuner       = vidioc_g_tuner,
1449         .vidioc_s_tuner       = vidioc_s_tuner,
1450         .vidioc_g_frequency   = vidioc_g_frequency,
1451         .vidioc_s_frequency   = vidioc_s_frequency,
1452 #ifdef CONFIG_VIDEO_ADV_DEBUG
1453         .vidioc_g_register    = vidioc_g_register,
1454         .vidioc_s_register    = vidioc_s_register,
1455 #endif
1456 };
1457
1458 static struct video_device cx23885_vbi_template;
1459 static struct video_device cx23885_video_template = {
1460         .name                 = "cx23885-video",
1461         .fops                 = &video_fops,
1462         .minor                = -1,
1463         .ioctl_ops            = &video_ioctl_ops,
1464         .tvnorms              = CX23885_NORMS,
1465         .current_norm         = V4L2_STD_NTSC_M,
1466 };
1467
1468 static const struct v4l2_file_operations radio_fops = {
1469         .owner         = THIS_MODULE,
1470         .open          = video_open,
1471         .release       = video_release,
1472         .ioctl         = video_ioctl2,
1473 };
1474
1475
1476 void cx23885_video_unregister(struct cx23885_dev *dev)
1477 {
1478         dprintk(1, "%s()\n", __func__);
1479         cx_clear(PCI_INT_MSK, 1);
1480
1481         if (dev->video_dev) {
1482                 if (-1 != dev->video_dev->minor)
1483                         video_unregister_device(dev->video_dev);
1484                 else
1485                         video_device_release(dev->video_dev);
1486                 dev->video_dev = NULL;
1487
1488                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1489         }
1490 }
1491
1492 int cx23885_video_register(struct cx23885_dev *dev)
1493 {
1494         int err;
1495
1496         dprintk(1, "%s()\n", __func__);
1497         spin_lock_init(&dev->slock);
1498
1499         /* Initialize VBI template */
1500         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1501                 sizeof(cx23885_vbi_template));
1502         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1503
1504         dev->tvnorm = cx23885_video_template.current_norm;
1505
1506         /* init video dma queues */
1507         INIT_LIST_HEAD(&dev->vidq.active);
1508         INIT_LIST_HEAD(&dev->vidq.queued);
1509         dev->vidq.timeout.function = cx23885_vid_timeout;
1510         dev->vidq.timeout.data = (unsigned long)dev;
1511         init_timer(&dev->vidq.timeout);
1512         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1513                 VID_A_DMA_CTL, 0x11, 0x00);
1514
1515         /* Don't enable VBI yet */
1516         cx_set(PCI_INT_MSK, 1);
1517
1518         if (TUNER_ABSENT != dev->tuner_type) {
1519                 struct v4l2_subdev *sd = NULL;
1520
1521                 if (dev->tuner_addr)
1522                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1523                                 &dev->i2c_bus[1].i2c_adap,
1524                                 "tuner", "tuner", dev->tuner_addr);
1525                 else
1526                         sd = v4l2_i2c_new_probed_subdev(&dev->v4l2_dev,
1527                                 &dev->i2c_bus[1].i2c_adap,
1528                                 "tuner", "tuner", v4l2_i2c_tuner_addrs(ADDRS_TV));
1529                 if (sd) {
1530                         struct tuner_setup tun_setup;
1531
1532                         tun_setup.mode_mask = T_ANALOG_TV;
1533                         tun_setup.type = dev->tuner_type;
1534                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1535
1536                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1537                 }
1538         }
1539
1540
1541         /* register v4l devices */
1542         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1543                 &cx23885_video_template, "video");
1544         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1545                                     video_nr[dev->nr]);
1546         if (err < 0) {
1547                 printk(KERN_INFO "%s: can't register video device\n",
1548                         dev->name);
1549                 goto fail_unreg;
1550         }
1551         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1552                dev->name, dev->video_dev->num);
1553         /* initial device configuration */
1554         mutex_lock(&dev->lock);
1555         cx23885_set_tvnorm(dev, dev->tvnorm);
1556         init_controls(dev);
1557         cx23885_video_mux(dev, 0);
1558         mutex_unlock(&dev->lock);
1559
1560         return 0;
1561
1562 fail_unreg:
1563         cx23885_video_unregister(dev);
1564         return err;
1565 }
1566