drivers/media/video/cx23885/cx23885-video.c

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/kmod.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/interrupt.h>
  30 #include <linux/delay.h>
  31 #include <linux/kthread.h>
  32 #include <asm/div64.h>
  33
  34 #include "cx23885.h"
  35 #include <media/v4l2-common.h>
  36 #include <media/v4l2-ioctl.h>
  37
  38 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  39 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  40 MODULE_LICENSE("GPL");
  41
  42 /* ------------------------------------------------------------------ */
  43
  44 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  45 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  46 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  47
  48 module_param_array(video_nr, int, NULL, 0444);
  49 module_param_array(vbi_nr,   int, NULL, 0444);
  50 module_param_array(radio_nr, int, NULL, 0444);
  51
  52 MODULE_PARM_DESC(video_nr, "video device numbers");
  53 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  54 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  55
  56 static unsigned int video_debug;
  57 module_param(video_debug, int, 0644);
  58 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  59
  60 static unsigned int irq_debug;
  61 module_param(irq_debug, int, 0644);
  62 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  63
  64 static unsigned int vid_limit = 16;
  65 module_param(vid_limit, int, 0644);
  66 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  67
  68 #define dprintk(level, fmt, arg...)\
  69         do { if (video_debug >= level)\
  70                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  71         } while (0)
  72
  73 /* ------------------------------------------------------------------- */
  74 /* static data                                                         */
  75
  76 #define FORMAT_FLAGS_PACKED       0x01
  77
  78 static struct cx23885_fmt formats[] = {
  79         {
  80                 .name     = "8 bpp, gray",
  81                 .fourcc   = V4L2_PIX_FMT_GREY,
  82                 .depth    = 8,
  83                 .flags    = FORMAT_FLAGS_PACKED,
  84         }, {
  85                 .name     = "15 bpp RGB, le",
  86                 .fourcc   = V4L2_PIX_FMT_RGB555,
  87                 .depth    = 16,
  88                 .flags    = FORMAT_FLAGS_PACKED,
  89         }, {
  90                 .name     = "15 bpp RGB, be",
  91                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  92                 .depth    = 16,
  93                 .flags    = FORMAT_FLAGS_PACKED,
  94         }, {
  95                 .name     = "16 bpp RGB, le",
  96                 .fourcc   = V4L2_PIX_FMT_RGB565,
  97                 .depth    = 16,
  98                 .flags    = FORMAT_FLAGS_PACKED,
  99         }, {
 100                 .name     = "16 bpp RGB, be",
 101                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 102                 .depth    = 16,
 103                 .flags    = FORMAT_FLAGS_PACKED,
 104         }, {
 105                 .name     = "24 bpp RGB, le",
 106                 .fourcc   = V4L2_PIX_FMT_BGR24,
 107                 .depth    = 24,
 108                 .flags    = FORMAT_FLAGS_PACKED,
 109         }, {
 110                 .name     = "32 bpp RGB, le",
 111                 .fourcc   = V4L2_PIX_FMT_BGR32,
 112                 .depth    = 32,
 113                 .flags    = FORMAT_FLAGS_PACKED,
 114         }, {
 115                 .name     = "32 bpp RGB, be",
 116                 .fourcc   = V4L2_PIX_FMT_RGB32,
 117                 .depth    = 32,
 118                 .flags    = FORMAT_FLAGS_PACKED,
 119         }, {
 120                 .name     = "4:2:2, packed, YUYV",
 121                 .fourcc   = V4L2_PIX_FMT_YUYV,
 122                 .depth    = 16,
 123                 .flags    = FORMAT_FLAGS_PACKED,
 124         }, {
 125                 .name     = "4:2:2, packed, UYVY",
 126                 .fourcc   = V4L2_PIX_FMT_UYVY,
 127                 .depth    = 16,
 128                 .flags    = FORMAT_FLAGS_PACKED,
 129         },
 130 };
 131
 132 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 133 {
 134         unsigned int i;
 135
 136         for (i = 0; i < ARRAY_SIZE(formats); i++)
 137                 if (formats[i].fourcc == fourcc)
 138                         return formats+i;
 139
 140         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 141         return NULL;
 142 }
 143
 144 /* ------------------------------------------------------------------- */
 145
 146 static const struct v4l2_queryctrl no_ctl = {
 147         .name  = "42",
 148         .flags = V4L2_CTRL_FLAG_DISABLED,
 149 };
 150
 151 static struct cx23885_ctrl cx23885_ctls[] = {
 152         /* --- video --- */
 153         {
 154                 .v = {
 155                         .id            = V4L2_CID_BRIGHTNESS,
 156                         .name          = "Brightness",
 157                         .minimum       = 0x00,
 158                         .maximum       = 0xff,
 159                         .step          = 1,
 160                         .default_value = 0x7f,
 161                         .type          = V4L2_CTRL_TYPE_INTEGER,
 162                 },
 163                 .off                   = 128,
 164                 .reg                   = LUMA_CTRL,
 165                 .mask                  = 0x00ff,
 166                 .shift                 = 0,
 167         }, {
 168                 .v = {
 169                         .id            = V4L2_CID_CONTRAST,
 170                         .name          = "Contrast",
 171                         .minimum       = 0,
 172                         .maximum       = 0xff,
 173                         .step          = 1,
 174                         .default_value = 0x3f,
 175                         .type          = V4L2_CTRL_TYPE_INTEGER,
 176                 },
 177                 .off                   = 0,
 178                 .reg                   = LUMA_CTRL,
 179                 .mask                  = 0xff00,
 180                 .shift                 = 8,
 181         }, {
 182                 .v = {
 183                         .id            = V4L2_CID_HUE,
 184                         .name          = "Hue",
 185                         .minimum       = 0,
 186                         .maximum       = 0xff,
 187                         .step          = 1,
 188                         .default_value = 0x7f,
 189                         .type          = V4L2_CTRL_TYPE_INTEGER,
 190                 },
 191                 .off                   = 128,
 192                 .reg                   = CHROMA_CTRL,
 193                 .mask                  = 0xff0000,
 194                 .shift                 = 16,
 195         }, {
 196                 /* strictly, this only describes only U saturation.
 197                  * V saturation is handled specially through code.
 198                  */
 199                 .v = {
 200                         .id            = V4L2_CID_SATURATION,
 201                         .name          = "Saturation",
 202                         .minimum       = 0,
 203                         .maximum       = 0xff,
 204                         .step          = 1,
 205                         .default_value = 0x7f,
 206                         .type          = V4L2_CTRL_TYPE_INTEGER,
 207                 },
 208                 .off                   = 0,
 209                 .reg                   = CHROMA_CTRL,
 210                 .mask                  = 0x00ff,
 211                 .shift                 = 0,
 212         }, {
 213         /* --- audio --- */
 214                 .v = {
 215                         .id            = V4L2_CID_AUDIO_MUTE,
 216                         .name          = "Mute",
 217                         .minimum       = 0,
 218                         .maximum       = 1,
 219                         .default_value = 1,
 220                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 221                 },
 222                 .reg                   = PATH1_CTL1,
 223                 .mask                  = (0x1f << 24),
 224                 .shift                 = 24,
 225         }, {
 226                 .v = {
 227                         .id            = V4L2_CID_AUDIO_VOLUME,
 228                         .name          = "Volume",
 229                         .minimum       = 0,
 230                         .maximum       = 0x3f,
 231                         .step          = 1,
 232                         .default_value = 0x3f,
 233                         .type          = V4L2_CTRL_TYPE_INTEGER,
 234                 },
 235                 .reg                   = PATH1_VOL_CTL,
 236                 .mask                  = 0xff,
 237                 .shift                 = 0,
 238         }
 239 };
 240 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 241
 242 /* Must be sorted from low to high control ID! */
 243 static const u32 cx23885_user_ctrls[] = {
 244         V4L2_CID_USER_CLASS,
 245         V4L2_CID_BRIGHTNESS,
 246         V4L2_CID_CONTRAST,
 247         V4L2_CID_SATURATION,
 248         V4L2_CID_HUE,
 249         V4L2_CID_AUDIO_VOLUME,
 250         V4L2_CID_AUDIO_MUTE,
 251         0
 252 };
 253
 254 static const u32 *ctrl_classes[] = {
 255         cx23885_user_ctrls,
 256         NULL
 257 };
 258
 259 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 260                  struct cx23885_dmaqueue *q, u32 count)
 261 {
 262         struct cx23885_buffer *buf;
 263         int bc;
 264
 265         for (bc = 0;; bc++) {
 266                 if (list_empty(&q->active))
 267                         break;
 268                 buf = list_entry(q->active.next,
 269                                  struct cx23885_buffer, vb.queue);
 270
 271                 /* count comes from the hw and is is 16bit wide --
 272                  * this trick handles wrap-arounds correctly for
 273                  * up to 32767 buffers in flight... */
 274                 if ((s16) (count - buf->count) < 0)
 275                         break;
 276
 277                 do_gettimeofday(&buf->vb.ts);
 278                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 279                         count, buf->count);
 280                 buf->vb.state = VIDEOBUF_DONE;
 281                 list_del(&buf->vb.queue);
 282                 wake_up(&buf->vb.done);
 283         }
 284         if (list_empty(&q->active))
 285                 del_timer(&q->timeout);
 286         else
 287                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 288         if (bc != 1)
 289                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 290                         __func__, bc);
 291 }
 292
 293 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 294 {
 295         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 296                 __func__,
 297                 (unsigned int)norm,
 298                 v4l2_norm_to_name(norm));
 299
 300         dev->tvnorm = norm;
 301
 302         call_all(dev, core, s_std, norm);
 303
 304         return 0;
 305 }
 306
 307 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 308                                     struct pci_dev *pci,
 309                                     struct video_device *template,
 310                                     char *type)
 311 {
 312         struct video_device *vfd;
 313         dprintk(1, "%s()\n", __func__);
 314
 315         vfd = video_device_alloc();
 316         if (NULL == vfd)
 317                 return NULL;
 318         *vfd = *template;
 319         vfd->minor = -1;
 320         vfd->v4l2_dev = &dev->v4l2_dev;
 321         vfd->release = video_device_release;
 322         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 323                  dev->name, type, cx23885_boards[dev->board].name);
 324         return vfd;
 325 }
 326
 327 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 328 {
 329         int i;
 330
 331         if (qctrl->id < V4L2_CID_BASE ||
 332             qctrl->id >= V4L2_CID_LASTP1)
 333                 return -EINVAL;
 334         for (i = 0; i < CX23885_CTLS; i++)
 335                 if (cx23885_ctls[i].v.id == qctrl->id)
 336                         break;
 337         if (i == CX23885_CTLS) {
 338                 *qctrl = no_ctl;
 339                 return 0;
 340         }
 341         *qctrl = cx23885_ctls[i].v;
 342         return 0;
 343 }
 344
 345 /* ------------------------------------------------------------------- */
 346 /* resource management                                                 */
 347
 348 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 349         unsigned int bit)
 350 {
 351         dprintk(1, "%s()\n", __func__);
 352         if (fh->resources & bit)
 353                 /* have it already allocated */
 354                 return 1;
 355
 356         /* is it free? */
 357         mutex_lock(&dev->lock);
 358         if (dev->resources & bit) {
 359                 /* no, someone else uses it */
 360                 mutex_unlock(&dev->lock);
 361                 return 0;
 362         }
 363         /* it's free, grab it */
 364         fh->resources  |= bit;
 365         dev->resources |= bit;
 366         dprintk(1, "res: get %d\n", bit);
 367         mutex_unlock(&dev->lock);
 368         return 1;
 369 }
 370
 371 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 372 {
 373         return fh->resources & bit;
 374 }
 375
 376 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 377 {
 378         return dev->resources & bit;
 379 }
 380
 381 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 382         unsigned int bits)
 383 {
 384         BUG_ON((fh->resources & bits) != bits);
 385         dprintk(1, "%s()\n", __func__);
 386
 387         mutex_lock(&dev->lock);
 388         fh->resources  &= ~bits;
 389         dev->resources &= ~bits;
 390         dprintk(1, "res: put %d\n", bits);
 391         mutex_unlock(&dev->lock);
 392 }
 393
 394 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 395 {
 396         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 397                 __func__,
 398                 input, INPUT(input)->vmux,
 399                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 400                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 401         dev->input = input;
 402
 403         /* Tell the internal A/V decoder */
 404         v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
 405                         INPUT(input)->vmux, 0, 0);
 406
 407         return 0;
 408 }
 409
 410 /* ------------------------------------------------------------------ */
 411 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 412         unsigned int height, enum v4l2_field field)
 413 {
 414         dprintk(1, "%s()\n", __func__);
 415         return 0;
 416 }
 417
 418 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 419                            struct cx23885_dmaqueue *q,
 420                            struct cx23885_buffer *buf)
 421 {
 422         dprintk(1, "%s()\n", __func__);
 423
 424         /* setup fifo + format */
 425         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 426                                 buf->bpl, buf->risc.dma);
 427         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 428
 429         /* reset counter */
 430         cx_write(VID_A_GPCNT_CTL, 3);
 431         q->count = 1;
 432
 433         /* enable irq */
 434         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 435         cx_set(VID_A_INT_MSK, 0x000011);
 436
 437         /* start dma */
 438         cx_set(DEV_CNTRL2, (1<<5));
 439         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 440
 441         return 0;
 442 }
 443
 444
 445 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 446                                struct cx23885_dmaqueue *q)
 447 {
 448         struct cx23885_buffer *buf, *prev;
 449         struct list_head *item;
 450         dprintk(1, "%s()\n", __func__);
 451
 452         if (!list_empty(&q->active)) {
 453                 buf = list_entry(q->active.next, struct cx23885_buffer,
 454                         vb.queue);
 455                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 456                         buf, buf->vb.i);
 457                 cx23885_start_video_dma(dev, q, buf);
 458                 list_for_each(item, &q->active) {
 459                         buf = list_entry(item, struct cx23885_buffer,
 460                                 vb.queue);
 461                         buf->count    = q->count++;
 462                 }
 463                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 464                 return 0;
 465         }
 466
 467         prev = NULL;
 468         for (;;) {
 469                 if (list_empty(&q->queued))
 470                         return 0;
 471                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 472                         vb.queue);
 473                 if (NULL == prev) {
 474                         list_move_tail(&buf->vb.queue, &q->active);
 475                         cx23885_start_video_dma(dev, q, buf);
 476                         buf->vb.state = VIDEOBUF_ACTIVE;
 477                         buf->count    = q->count++;
 478                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 479                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 480                                 buf, buf->vb.i);
 481
 482                 } else if (prev->vb.width  == buf->vb.width  &&
 483                            prev->vb.height == buf->vb.height &&
 484                            prev->fmt       == buf->fmt) {
 485                         list_move_tail(&buf->vb.queue, &q->active);
 486                         buf->vb.state = VIDEOBUF_ACTIVE;
 487                         buf->count    = q->count++;
 488                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 489                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 490                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 491                                 buf, buf->vb.i);
 492                 } else {
 493                         return 0;
 494                 }
 495                 prev = buf;
 496         }
 497 }
 498
 499 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 500         unsigned int *size)
 501 {
 502         struct cx23885_fh *fh = q->priv_data;
 503
 504         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 505         if (0 == *count)
 506                 *count = 32;
 507         while (*size * *count > vid_limit * 1024 * 1024)
 508                 (*count)--;
 509         return 0;
 510 }
 511
 512 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 513                enum v4l2_field field)
 514 {
 515         struct cx23885_fh *fh  = q->priv_data;
 516         struct cx23885_dev *dev = fh->dev;
 517         struct cx23885_buffer *buf =
 518                 container_of(vb, struct cx23885_buffer, vb);
 519         int rc, init_buffer = 0;
 520         u32 line0_offset, line1_offset;
 521         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 522
 523         BUG_ON(NULL == fh->fmt);
 524         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 525             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 526                 return -EINVAL;
 527         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 528         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 529                 return -EINVAL;
 530
 531         if (buf->fmt       != fh->fmt    ||
 532             buf->vb.width  != fh->width  ||
 533             buf->vb.height != fh->height ||
 534             buf->vb.field  != field) {
 535                 buf->fmt       = fh->fmt;
 536                 buf->vb.width  = fh->width;
 537                 buf->vb.height = fh->height;
 538                 buf->vb.field  = field;
 539                 init_buffer = 1;
 540         }
 541
 542         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 543                 init_buffer = 1;
 544                 rc = videobuf_iolock(q, &buf->vb, NULL);
 545                 if (0 != rc)
 546                         goto fail;
 547         }
 548
 549         if (init_buffer) {
 550                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 551                 switch (buf->vb.field) {
 552                 case V4L2_FIELD_TOP:
 553                         cx23885_risc_buffer(dev->pci, &buf->risc,
 554                                          dma->sglist, 0, UNSET,
 555                                          buf->bpl, 0, buf->vb.height);
 556                         break;
 557                 case V4L2_FIELD_BOTTOM:
 558                         cx23885_risc_buffer(dev->pci, &buf->risc,
 559                                          dma->sglist, UNSET, 0,
 560                                          buf->bpl, 0, buf->vb.height);
 561                         break;
 562                 case V4L2_FIELD_INTERLACED:
 563                         if (dev->tvnorm & V4L2_STD_NTSC) {
 564                                 /* cx25840 transmits NTSC bottom field first */
 565                                 dprintk(1, "%s() Creating NTSC risc\n",
 566                                         __func__);
 567                                 line0_offset = buf->bpl;
 568                                 line1_offset = 0;
 569                         } else {
 570                                 /* All other formats are top field first */
 571                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 572                                         __func__);
 573                                 line0_offset = 0;
 574                                 line1_offset = buf->bpl;
 575                         }
 576                         cx23885_risc_buffer(dev->pci, &buf->risc,
 577                                         dma->sglist, line0_offset,
 578                                         line1_offset,
 579                                         buf->bpl, buf->bpl,
 580                                         buf->vb.height >> 1);
 581                         break;
 582                 case V4L2_FIELD_SEQ_TB:
 583                         cx23885_risc_buffer(dev->pci, &buf->risc,
 584                                          dma->sglist,
 585                                          0, buf->bpl * (buf->vb.height >> 1),
 586                                          buf->bpl, 0,
 587                                          buf->vb.height >> 1);
 588                         break;
 589                 case V4L2_FIELD_SEQ_BT:
 590                         cx23885_risc_buffer(dev->pci, &buf->risc,
 591                                          dma->sglist,
 592                                          buf->bpl * (buf->vb.height >> 1), 0,
 593                                          buf->bpl, 0,
 594                                          buf->vb.height >> 1);
 595                         break;
 596                 default:
 597                         BUG();
 598                 }
 599         }
 600         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 601                 buf, buf->vb.i,
 602                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 603                 (unsigned long)buf->risc.dma);
 604
 605         buf->vb.state = VIDEOBUF_PREPARED;
 606         return 0;
 607
 608  fail:
 609         cx23885_free_buffer(q, buf);
 610         return rc;
 611 }
 612
 613 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 614 {
 615         struct cx23885_buffer   *buf = container_of(vb,
 616                 struct cx23885_buffer, vb);
 617         struct cx23885_buffer   *prev;
 618         struct cx23885_fh       *fh   = vq->priv_data;
 619         struct cx23885_dev      *dev  = fh->dev;
 620         struct cx23885_dmaqueue *q    = &dev->vidq;
 621
 622         /* add jump to stopper */
 623         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 624         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 625         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 626
 627         if (!list_empty(&q->queued)) {
 628                 list_add_tail(&buf->vb.queue, &q->queued);
 629                 buf->vb.state = VIDEOBUF_QUEUED;
 630                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 631                         buf, buf->vb.i);
 632
 633         } else if (list_empty(&q->active)) {
 634                 list_add_tail(&buf->vb.queue, &q->active);
 635                 cx23885_start_video_dma(dev, q, buf);
 636                 buf->vb.state = VIDEOBUF_ACTIVE;
 637                 buf->count    = q->count++;
 638                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 639                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 640                         buf, buf->vb.i);
 641
 642         } else {
 643                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 644                         vb.queue);
 645                 if (prev->vb.width  == buf->vb.width  &&
 646                     prev->vb.height == buf->vb.height &&
 647                     prev->fmt       == buf->fmt) {
 648                         list_add_tail(&buf->vb.queue, &q->active);
 649                         buf->vb.state = VIDEOBUF_ACTIVE;
 650                         buf->count    = q->count++;
 651                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 652                         /* 64 bit bits 63-32 */
 653                         prev->risc.jmp[2] = cpu_to_le32(0);
 654                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 655                                 buf, buf->vb.i);
 656
 657                 } else {
 658                         list_add_tail(&buf->vb.queue, &q->queued);
 659                         buf->vb.state = VIDEOBUF_QUEUED;
 660                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 661                                 buf, buf->vb.i);
 662                 }
 663         }
 664 }
 665
 666 static void buffer_release(struct videobuf_queue *q,
 667         struct videobuf_buffer *vb)
 668 {
 669         struct cx23885_buffer *buf = container_of(vb,
 670                 struct cx23885_buffer, vb);
 671
 672         cx23885_free_buffer(q, buf);
 673 }
 674
 675 static struct videobuf_queue_ops cx23885_video_qops = {
 676         .buf_setup    = buffer_setup,
 677         .buf_prepare  = buffer_prepare,
 678         .buf_queue    = buffer_queue,
 679         .buf_release  = buffer_release,
 680 };
 681
 682 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 683 {
 684         switch (fh->type) {
 685         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 686                 return &fh->vidq;
 687         case V4L2_BUF_TYPE_VBI_CAPTURE:
 688                 return &fh->vbiq;
 689         default:
 690                 BUG();
 691                 return NULL;
 692         }
 693 }
 694
 695 static int get_resource(struct cx23885_fh *fh)
 696 {
 697         switch (fh->type) {
 698         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 699                 return RESOURCE_VIDEO;
 700         case V4L2_BUF_TYPE_VBI_CAPTURE:
 701                 return RESOURCE_VBI;
 702         default:
 703                 BUG();
 704                 return 0;
 705         }
 706 }
 707
 708 static int video_open(struct file *file)
 709 {
 710         int minor = video_devdata(file)->minor;
 711         struct cx23885_dev *h, *dev = NULL;
 712         struct cx23885_fh *fh;
 713         struct list_head *list;
 714         enum v4l2_buf_type type = 0;
 715         int radio = 0;
 716
 717         lock_kernel();
 718         list_for_each(list, &cx23885_devlist) {
 719                 h = list_entry(list, struct cx23885_dev, devlist);
 720                 if (h->video_dev &&
 721                     h->video_dev->minor == minor) {
 722                         dev  = h;
 723                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 724                 }
 725                 if (h->vbi_dev &&
 726                     h->vbi_dev->minor == minor) {
 727                         dev  = h;
 728                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 729                 }
 730                 if (h->radio_dev &&
 731                     h->radio_dev->minor == minor) {
 732                         radio = 1;
 733                         dev   = h;
 734                 }
 735         }
 736         if (NULL == dev) {
 737                 unlock_kernel();
 738                 return -ENODEV;
 739         }
 740
 741         dprintk(1, "open minor=%d radio=%d type=%s\n",
 742                 minor, radio, v4l2_type_names[type]);
 743
 744         /* allocate + initialize per filehandle data */
 745         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 746         if (NULL == fh) {
 747                 unlock_kernel();
 748                 return -ENOMEM;
 749         }
 750         file->private_data = fh;
 751         fh->dev      = dev;
 752         fh->radio    = radio;
 753         fh->type     = type;
 754         fh->width    = 320;
 755         fh->height   = 240;
 756         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 757
 758         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 759                             &dev->pci->dev, &dev->slock,
 760                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 761                             V4L2_FIELD_INTERLACED,
 762                             sizeof(struct cx23885_buffer),
 763                             fh);
 764
 765         dprintk(1, "post videobuf_queue_init()\n");
 766
 767         unlock_kernel();
 768
 769         return 0;
 770 }
 771
 772 static ssize_t video_read(struct file *file, char __user *data,
 773         size_t count, loff_t *ppos)
 774 {
 775         struct cx23885_fh *fh = file->private_data;
 776
 777         switch (fh->type) {
 778         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 779                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 780                         return -EBUSY;
 781                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 782                                          file->f_flags & O_NONBLOCK);
 783         case V4L2_BUF_TYPE_VBI_CAPTURE:
 784                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 785                         return -EBUSY;
 786                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 787                                             file->f_flags & O_NONBLOCK);
 788         default:
 789                 BUG();
 790                 return 0;
 791         }
 792 }
 793
 794 static unsigned int video_poll(struct file *file,
 795         struct poll_table_struct *wait)
 796 {
 797         struct cx23885_fh *fh = file->private_data;
 798         struct cx23885_buffer *buf;
 799         unsigned int rc = POLLERR;
 800
 801         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 802                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 803                         return POLLERR;
 804                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 805         }
 806
 807         mutex_lock(&fh->vidq.vb_lock);
 808         if (res_check(fh, RESOURCE_VIDEO)) {
 809                 /* streaming capture */
 810                 if (list_empty(&fh->vidq.stream))
 811                         goto done;
 812                 buf = list_entry(fh->vidq.stream.next,
 813                         struct cx23885_buffer, vb.stream);
 814         } else {
 815                 /* read() capture */
 816                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 817                 if (NULL == buf)
 818                         goto done;
 819         }
 820         poll_wait(file, &buf->vb.done, wait);
 821         if (buf->vb.state == VIDEOBUF_DONE ||
 822             buf->vb.state == VIDEOBUF_ERROR)
 823                 rc =  POLLIN|POLLRDNORM;
 824         else
 825                 rc = 0;
 826 done:
 827         mutex_unlock(&fh->vidq.vb_lock);
 828         return rc;
 829 }
 830
 831 static int video_release(struct file *file)
 832 {
 833         struct cx23885_fh *fh = file->private_data;
 834         struct cx23885_dev *dev = fh->dev;
 835
 836         /* turn off overlay */
 837         if (res_check(fh, RESOURCE_OVERLAY)) {
 838                 /* FIXME */
 839                 res_free(dev, fh, RESOURCE_OVERLAY);
 840         }
 841
 842         /* stop video capture */
 843         if (res_check(fh, RESOURCE_VIDEO)) {
 844                 videobuf_queue_cancel(&fh->vidq);
 845                 res_free(dev, fh, RESOURCE_VIDEO);
 846         }
 847         if (fh->vidq.read_buf) {
 848                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 849                 kfree(fh->vidq.read_buf);
 850         }
 851
 852         /* stop vbi capture */
 853         if (res_check(fh, RESOURCE_VBI)) {
 854                 if (fh->vbiq.streaming)
 855                         videobuf_streamoff(&fh->vbiq);
 856                 if (fh->vbiq.reading)
 857                         videobuf_read_stop(&fh->vbiq);
 858                 res_free(dev, fh, RESOURCE_VBI);
 859         }
 860
 861         videobuf_mmap_free(&fh->vidq);
 862         file->private_data = NULL;
 863         kfree(fh);
 864
 865         /* We are not putting the tuner to sleep here on exit, because
 866          * we want to use the mpeg encoder in another session to capture
 867          * tuner video. Closing this will result in no video to the encoder.
 868          */
 869
 870         return 0;
 871 }
 872
 873 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 874 {
 875         struct cx23885_fh *fh = file->private_data;
 876
 877         return videobuf_mmap_mapper(get_queue(fh), vma);
 878 }
 879
 880 /* ------------------------------------------------------------------ */
 881 /* VIDEO CTRL IOCTLS                                                  */
 882
 883 static int cx23885_get_control(struct cx23885_dev *dev,
 884         struct v4l2_control *ctl)
 885 {
 886         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 887         call_all(dev, core, g_ctrl, ctl);
 888         return 0;
 889 }
 890
 891 static int cx23885_set_control(struct cx23885_dev *dev,
 892         struct v4l2_control *ctl)
 893 {
 894         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 895                 " (disabled - no action)\n", __func__);
 896         return 0;
 897 }
 898
 899 static void init_controls(struct cx23885_dev *dev)
 900 {
 901         struct v4l2_control ctrl;
 902         int i;
 903
 904         for (i = 0; i < CX23885_CTLS; i++) {
 905                 ctrl.id = cx23885_ctls[i].v.id;
 906                 ctrl.value = cx23885_ctls[i].v.default_value;
 907
 908                 cx23885_set_control(dev, &ctrl);
 909         }
 910 }
 911
 912 /* ------------------------------------------------------------------ */
 913 /* VIDEO IOCTLS                                                       */
 914
 915 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 916         struct v4l2_format *f)
 917 {
 918         struct cx23885_fh *fh   = priv;
 919
 920         f->fmt.pix.width        = fh->width;
 921         f->fmt.pix.height       = fh->height;
 922         f->fmt.pix.field        = fh->vidq.field;
 923         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 924         f->fmt.pix.bytesperline =
 925                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 926         f->fmt.pix.sizeimage =
 927                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 928
 929         return 0;
 930 }
 931
 932 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 933         struct v4l2_format *f)
 934 {
 935         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 936         struct cx23885_fmt *fmt;
 937         enum v4l2_field   field;
 938         unsigned int      maxw, maxh;
 939
 940         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 941         if (NULL == fmt)
 942                 return -EINVAL;
 943
 944         field = f->fmt.pix.field;
 945         maxw  = norm_maxw(dev->tvnorm);
 946         maxh  = norm_maxh(dev->tvnorm);
 947
 948         if (V4L2_FIELD_ANY == field) {
 949                 field = (f->fmt.pix.height > maxh/2)
 950                         ? V4L2_FIELD_INTERLACED
 951                         : V4L2_FIELD_BOTTOM;
 952         }
 953
 954         switch (field) {
 955         case V4L2_FIELD_TOP:
 956         case V4L2_FIELD_BOTTOM:
 957                 maxh = maxh / 2;
 958                 break;
 959         case V4L2_FIELD_INTERLACED:
 960                 break;
 961         default:
 962                 return -EINVAL;
 963         }
 964
 965         f->fmt.pix.field = field;
 966         if (f->fmt.pix.height < 32)
 967                 f->fmt.pix.height = 32;
 968         if (f->fmt.pix.height > maxh)
 969                 f->fmt.pix.height = maxh;
 970         if (f->fmt.pix.width < 48)
 971                 f->fmt.pix.width = 48;
 972         if (f->fmt.pix.width > maxw)
 973                 f->fmt.pix.width = maxw;
 974         f->fmt.pix.width &= ~0x03;
 975         f->fmt.pix.bytesperline =
 976                 (f->fmt.pix.width * fmt->depth) >> 3;
 977         f->fmt.pix.sizeimage =
 978                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 979
 980         return 0;
 981 }
 982
 983 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 984         struct v4l2_format *f)
 985 {
 986         struct cx23885_fh *fh = priv;
 987         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 988         int err;
 989
 990         dprintk(2, "%s()\n", __func__);
 991         err = vidioc_try_fmt_vid_cap(file, priv, f);
 992
 993         if (0 != err)
 994                 return err;
 995         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 996         fh->width      = f->fmt.pix.width;
 997         fh->height     = f->fmt.pix.height;
 998         fh->vidq.field = f->fmt.pix.field;
 999         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1000                 fh->width, fh->height, fh->vidq.field);
1001         call_all(dev, video, s_fmt, f);
1002         return 0;
1003 }
1004
1005 static int vidioc_querycap(struct file *file, void  *priv,
1006         struct v4l2_capability *cap)
1007 {
1008         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1009
1010         strcpy(cap->driver, "cx23885");
1011         strlcpy(cap->card, cx23885_boards[dev->board].name,
1012                 sizeof(cap->card));
1013         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1014         cap->version = CX23885_VERSION_CODE;
1015         cap->capabilities =
1016                 V4L2_CAP_VIDEO_CAPTURE |
1017                 V4L2_CAP_READWRITE     |
1018                 V4L2_CAP_STREAMING     |
1019                 V4L2_CAP_VBI_CAPTURE;
1020         if (UNSET != dev->tuner_type)
1021                 cap->capabilities |= V4L2_CAP_TUNER;
1022         return 0;
1023 }
1024
1025 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1026         struct v4l2_fmtdesc *f)
1027 {
1028         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1029                 return -EINVAL;
1030
1031         strlcpy(f->description, formats[f->index].name,
1032                 sizeof(f->description));
1033         f->pixelformat = formats[f->index].fourcc;
1034
1035         return 0;
1036 }
1037
1038 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1039 static int vidiocgmbuf(struct file *file, void *priv,
1040         struct video_mbuf *mbuf)
1041 {
1042         struct cx23885_fh *fh = priv;
1043         struct videobuf_queue *q;
1044         struct v4l2_requestbuffers req;
1045         unsigned int i;
1046         int err;
1047
1048         q = get_queue(fh);
1049         memset(&req, 0, sizeof(req));
1050         req.type   = q->type;
1051         req.count  = 8;
1052         req.memory = V4L2_MEMORY_MMAP;
1053         err = videobuf_reqbufs(q, &req);
1054         if (err < 0)
1055                 return err;
1056
1057         mbuf->frames = req.count;
1058         mbuf->size   = 0;
1059         for (i = 0; i < mbuf->frames; i++) {
1060                 mbuf->offsets[i]  = q->bufs[i]->boff;
1061                 mbuf->size       += q->bufs[i]->bsize;
1062         }
1063         return 0;
1064 }
1065 #endif
1066
1067 static int vidioc_reqbufs(struct file *file, void *priv,
1068         struct v4l2_requestbuffers *p)
1069 {
1070         struct cx23885_fh *fh = priv;
1071         return videobuf_reqbufs(get_queue(fh), p);
1072 }
1073
1074 static int vidioc_querybuf(struct file *file, void *priv,
1075         struct v4l2_buffer *p)
1076 {
1077         struct cx23885_fh *fh = priv;
1078         return videobuf_querybuf(get_queue(fh), p);
1079 }
1080
1081 static int vidioc_qbuf(struct file *file, void *priv,
1082         struct v4l2_buffer *p)
1083 {
1084         struct cx23885_fh *fh = priv;
1085         return videobuf_qbuf(get_queue(fh), p);
1086 }
1087
1088 static int vidioc_dqbuf(struct file *file, void *priv,
1089         struct v4l2_buffer *p)
1090 {
1091         struct cx23885_fh *fh = priv;
1092         return videobuf_dqbuf(get_queue(fh), p,
1093                                 file->f_flags & O_NONBLOCK);
1094 }
1095
1096 static int vidioc_streamon(struct file *file, void *priv,
1097         enum v4l2_buf_type i)
1098 {
1099         struct cx23885_fh *fh = priv;
1100         struct cx23885_dev *dev = fh->dev;
1101         dprintk(1, "%s()\n", __func__);
1102
1103         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1104                 return -EINVAL;
1105         if (unlikely(i != fh->type))
1106                 return -EINVAL;
1107
1108         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1109                 return -EBUSY;
1110         return videobuf_streamon(get_queue(fh));
1111 }
1112
1113 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1114 {
1115         struct cx23885_fh *fh = priv;
1116         struct cx23885_dev *dev = fh->dev;
1117         int err, res;
1118         dprintk(1, "%s()\n", __func__);
1119
1120         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1121                 return -EINVAL;
1122         if (i != fh->type)
1123                 return -EINVAL;
1124
1125         res = get_resource(fh);
1126         err = videobuf_streamoff(get_queue(fh));
1127         if (err < 0)
1128                 return err;
1129         res_free(dev, fh, res);
1130         return 0;
1131 }
1132
1133 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1134 {
1135         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1136         dprintk(1, "%s()\n", __func__);
1137
1138         mutex_lock(&dev->lock);
1139         cx23885_set_tvnorm(dev, *tvnorms);
1140         mutex_unlock(&dev->lock);
1141
1142         return 0;
1143 }
1144
1145 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1146 {
1147         static const char *iname[] = {
1148                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1149                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1150                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1151                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1152                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1153                 [CX23885_VMUX_TELEVISION] = "Television",
1154                 [CX23885_VMUX_CABLE]      = "Cable TV",
1155                 [CX23885_VMUX_DVB]        = "DVB",
1156                 [CX23885_VMUX_DEBUG]      = "for debug only",
1157         };
1158         unsigned int n;
1159         dprintk(1, "%s()\n", __func__);
1160
1161         n = i->index;
1162         if (n >= 4)
1163                 return -EINVAL;
1164
1165         if (0 == INPUT(n)->type)
1166                 return -EINVAL;
1167
1168         memset(i, 0, sizeof(*i));
1169         i->index = n;
1170         i->type  = V4L2_INPUT_TYPE_CAMERA;
1171         strcpy(i->name, iname[INPUT(n)->type]);
1172         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1173                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1174                 i->type = V4L2_INPUT_TYPE_TUNER;
1175                 i->std = CX23885_NORMS;
1176         return 0;
1177 }
1178
1179 static int vidioc_enum_input(struct file *file, void *priv,
1180                                 struct v4l2_input *i)
1181 {
1182         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1183         dprintk(1, "%s()\n", __func__);
1184         return cx23885_enum_input(dev, i);
1185 }
1186
1187 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1188 {
1189         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1190
1191         *i = dev->input;
1192         dprintk(1, "%s() returns %d\n", __func__, *i);
1193         return 0;
1194 }
1195
1196 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1197 {
1198         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1199
1200         dprintk(1, "%s(%d)\n", __func__, i);
1201
1202         if (i >= 4) {
1203                 dprintk(1, "%s() -EINVAL\n", __func__);
1204                 return -EINVAL;
1205         }
1206
1207         mutex_lock(&dev->lock);
1208         cx23885_video_mux(dev, i);
1209         mutex_unlock(&dev->lock);
1210         return 0;
1211 }
1212
1213 static int vidioc_queryctrl(struct file *file, void *priv,
1214                                 struct v4l2_queryctrl *qctrl)
1215 {
1216         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1217         if (unlikely(qctrl->id == 0))
1218                 return -EINVAL;
1219         return cx23885_ctrl_query(qctrl);
1220 }
1221
1222 static int vidioc_g_ctrl(struct file *file, void *priv,
1223                                 struct v4l2_control *ctl)
1224 {
1225         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1226
1227         return cx23885_get_control(dev, ctl);
1228 }
1229
1230 static int vidioc_s_ctrl(struct file *file, void *priv,
1231                                 struct v4l2_control *ctl)
1232 {
1233         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1234
1235         return cx23885_set_control(dev, ctl);
1236 }
1237
1238 static int vidioc_g_tuner(struct file *file, void *priv,
1239                                 struct v4l2_tuner *t)
1240 {
1241         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1242
1243         if (unlikely(UNSET == dev->tuner_type))
1244                 return -EINVAL;
1245         if (0 != t->index)
1246                 return -EINVAL;
1247
1248         strcpy(t->name, "Television");
1249         t->type       = V4L2_TUNER_ANALOG_TV;
1250         t->capability = V4L2_TUNER_CAP_NORM;
1251         t->rangehigh  = 0xffffffffUL;
1252         t->signal = 0xffff ; /* LOCKED */
1253         return 0;
1254 }
1255
1256 static int vidioc_s_tuner(struct file *file, void *priv,
1257                                 struct v4l2_tuner *t)
1258 {
1259         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1260
1261         if (UNSET == dev->tuner_type)
1262                 return -EINVAL;
1263         if (0 != t->index)
1264                 return -EINVAL;
1265         return 0;
1266 }
1267
1268 static int vidioc_g_frequency(struct file *file, void *priv,
1269                                 struct v4l2_frequency *f)
1270 {
1271         struct cx23885_fh *fh = priv;
1272         struct cx23885_dev *dev = fh->dev;
1273
1274         if (unlikely(UNSET == dev->tuner_type))
1275                 return -EINVAL;
1276
1277         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1278         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1279         f->frequency = dev->freq;
1280
1281         call_all(dev, tuner, g_frequency, f);
1282
1283         return 0;
1284 }
1285
1286 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1287 {
1288         if (unlikely(UNSET == dev->tuner_type))
1289                 return -EINVAL;
1290         if (unlikely(f->tuner != 0))
1291                 return -EINVAL;
1292
1293         mutex_lock(&dev->lock);
1294         dev->freq = f->frequency;
1295
1296         call_all(dev, tuner, s_frequency, f);
1297
1298         /* When changing channels it is required to reset TVAUDIO */
1299         msleep(10);
1300
1301         mutex_unlock(&dev->lock);
1302
1303         return 0;
1304 }
1305
1306 static int vidioc_s_frequency(struct file *file, void *priv,
1307                                 struct v4l2_frequency *f)
1308 {
1309         struct cx23885_fh *fh = priv;
1310         struct cx23885_dev *dev = fh->dev;
1311
1312         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1313                 return -EINVAL;
1314         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1315                 return -EINVAL;
1316
1317         return
1318                 cx23885_set_freq(dev, f);
1319 }
1320
1321 #ifdef CONFIG_VIDEO_ADV_DEBUG
1322 static int vidioc_g_register(struct file *file, void *fh,
1323                                 struct v4l2_dbg_register *reg)
1324 {
1325         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1326
1327         if (!v4l2_chip_match_host(&reg->match))
1328                 return -EINVAL;
1329
1330         call_all(dev, core, g_register, reg);
1331
1332         return 0;
1333 }
1334
1335 static int vidioc_s_register(struct file *file, void *fh,
1336                                 struct v4l2_dbg_register *reg)
1337 {
1338         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1339
1340         if (!v4l2_chip_match_host(&reg->match))
1341                 return -EINVAL;
1342
1343         call_all(dev, core, s_register, reg);
1344
1345         return 0;
1346 }
1347 #endif
1348
1349 /* ----------------------------------------------------------- */
1350
1351 static void cx23885_vid_timeout(unsigned long data)
1352 {
1353         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1354         struct cx23885_dmaqueue *q = &dev->vidq;
1355         struct cx23885_buffer *buf;
1356         unsigned long flags;
1357
1358         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1359
1360         cx_clear(VID_A_DMA_CTL, 0x11);
1361
1362         spin_lock_irqsave(&dev->slock, flags);
1363         while (!list_empty(&q->active)) {
1364                 buf = list_entry(q->active.next,
1365                         struct cx23885_buffer, vb.queue);
1366                 list_del(&buf->vb.queue);
1367                 buf->vb.state = VIDEOBUF_ERROR;
1368                 wake_up(&buf->vb.done);
1369                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1370                         dev->name, buf, buf->vb.i,
1371                         (unsigned long)buf->risc.dma);
1372         }
1373         cx23885_restart_video_queue(dev, q);
1374         spin_unlock_irqrestore(&dev->slock, flags);
1375 }
1376
1377 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1378 {
1379         u32 mask, count;
1380         int handled = 0;
1381
1382         mask   = cx_read(VID_A_INT_MSK);
1383         if (0 == (status & mask))
1384                 return handled;
1385         cx_write(VID_A_INT_STAT, status);
1386
1387         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1388         /* risc op code error */
1389         if (status & (1 << 16)) {
1390                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1391                         dev->name);
1392                 cx_clear(VID_A_DMA_CTL, 0x11);
1393                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1394         }
1395
1396         /* risc1 y */
1397         if (status & 0x01) {
1398                 spin_lock(&dev->slock);
1399                 count = cx_read(VID_A_GPCNT);
1400                 cx23885_video_wakeup(dev, &dev->vidq, count);
1401                 spin_unlock(&dev->slock);
1402                 handled++;
1403         }
1404         /* risc2 y */
1405         if (status & 0x10) {
1406                 dprintk(2, "stopper video\n");
1407                 spin_lock(&dev->slock);
1408                 cx23885_restart_video_queue(dev, &dev->vidq);
1409                 spin_unlock(&dev->slock);
1410                 handled++;
1411         }
1412
1413         return handled;
1414 }
1415
1416 /* ----------------------------------------------------------- */
1417 /* exported stuff                                              */
1418
1419 static const struct v4l2_file_operations video_fops = {
1420         .owner         = THIS_MODULE,
1421         .open          = video_open,
1422         .release       = video_release,
1423         .read          = video_read,
1424         .poll          = video_poll,
1425         .mmap          = video_mmap,
1426         .ioctl         = video_ioctl2,
1427 };
1428
1429 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1430         .vidioc_querycap      = vidioc_querycap,
1431         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1432         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1433         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1434         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1435         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1436         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1437         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1438         .vidioc_reqbufs       = vidioc_reqbufs,
1439         .vidioc_querybuf      = vidioc_querybuf,
1440         .vidioc_qbuf          = vidioc_qbuf,
1441         .vidioc_dqbuf         = vidioc_dqbuf,
1442         .vidioc_s_std         = vidioc_s_std,
1443         .vidioc_enum_input    = vidioc_enum_input,
1444         .vidioc_g_input       = vidioc_g_input,
1445         .vidioc_s_input       = vidioc_s_input,
1446         .vidioc_queryctrl     = vidioc_queryctrl,
1447         .vidioc_g_ctrl        = vidioc_g_ctrl,
1448         .vidioc_s_ctrl        = vidioc_s_ctrl,
1449         .vidioc_streamon      = vidioc_streamon,
1450         .vidioc_streamoff     = vidioc_streamoff,
1451 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1452         .vidiocgmbuf          = vidiocgmbuf,
1453 #endif
1454         .vidioc_g_tuner       = vidioc_g_tuner,
1455         .vidioc_s_tuner       = vidioc_s_tuner,
1456         .vidioc_g_frequency   = vidioc_g_frequency,
1457         .vidioc_s_frequency   = vidioc_s_frequency,
1458 #ifdef CONFIG_VIDEO_ADV_DEBUG
1459         .vidioc_g_register    = vidioc_g_register,
1460         .vidioc_s_register    = vidioc_s_register,
1461 #endif
1462 };
1463
1464 static struct video_device cx23885_vbi_template;
1465 static struct video_device cx23885_video_template = {
1466         .name                 = "cx23885-video",
1467         .fops                 = &video_fops,
1468         .minor                = -1,
1469         .ioctl_ops            = &video_ioctl_ops,
1470         .tvnorms              = CX23885_NORMS,
1471         .current_norm         = V4L2_STD_NTSC_M,
1472 };
1473
1474 static const struct v4l2_file_operations radio_fops = {
1475         .owner         = THIS_MODULE,
1476         .open          = video_open,
1477         .release       = video_release,
1478         .ioctl         = video_ioctl2,
1479 };
1480
1481
1482 void cx23885_video_unregister(struct cx23885_dev *dev)
1483 {
1484         dprintk(1, "%s()\n", __func__);
1485         cx_clear(PCI_INT_MSK, 1);
1486
1487         if (dev->video_dev) {
1488                 if (-1 != dev->video_dev->minor)
1489                         video_unregister_device(dev->video_dev);
1490                 else
1491                         video_device_release(dev->video_dev);
1492                 dev->video_dev = NULL;
1493
1494                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1495         }
1496 }
1497
1498 int cx23885_video_register(struct cx23885_dev *dev)
1499 {
1500         int err;
1501
1502         dprintk(1, "%s()\n", __func__);
1503         spin_lock_init(&dev->slock);
1504
1505         /* Initialize VBI template */
1506         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1507                 sizeof(cx23885_vbi_template));
1508         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1509
1510         dev->tvnorm = cx23885_video_template.current_norm;
1511
1512         /* init video dma queues */
1513         INIT_LIST_HEAD(&dev->vidq.active);
1514         INIT_LIST_HEAD(&dev->vidq.queued);
1515         dev->vidq.timeout.function = cx23885_vid_timeout;
1516         dev->vidq.timeout.data = (unsigned long)dev;
1517         init_timer(&dev->vidq.timeout);
1518         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1519                 VID_A_DMA_CTL, 0x11, 0x00);
1520
1521         /* Don't enable VBI yet */
1522         cx_set(PCI_INT_MSK, 1);
1523
1524         if (TUNER_ABSENT != dev->tuner_type) {
1525                 struct v4l2_subdev *sd = NULL;
1526
1527                 if (dev->tuner_addr)
1528                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1529                                 &dev->i2c_bus[1].i2c_adap,
1530                                 "tuner", "tuner", dev->tuner_addr);
1531                 else
1532                         sd = v4l2_i2c_new_probed_subdev(&dev->v4l2_dev,
1533                                 &dev->i2c_bus[1].i2c_adap,
1534                                 "tuner", "tuner", v4l2_i2c_tuner_addrs(ADDRS_TV));
1535                 if (sd) {
1536                         struct tuner_setup tun_setup;
1537
1538                         tun_setup.mode_mask = T_ANALOG_TV;
1539                         tun_setup.type = dev->tuner_type;
1540                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1541
1542                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1543                 }
1544         }
1545
1546
1547         /* register v4l devices */
1548         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1549                 &cx23885_video_template, "video");
1550         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1551                                     video_nr[dev->nr]);
1552         if (err < 0) {
1553                 printk(KERN_INFO "%s: can't register video device\n",
1554                         dev->name);
1555                 goto fail_unreg;
1556         }
1557         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1558                dev->name, dev->video_dev->num);
1559         /* initial device configuration */
1560         mutex_lock(&dev->lock);
1561         cx23885_set_tvnorm(dev, dev->tvnorm);
1562         init_controls(dev);
1563         cx23885_video_mux(dev, 0);
1564         mutex_unlock(&dev->lock);
1565
1566         return 0;
1567
1568 fail_unreg:
1569         cx23885_video_unregister(dev);
1570         return err;
1571 }
1572