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 #include "cx23885-ioctl.h"
  38 #include "tuner-xc2028.h"
  39
  40 #include <media/cx25840.h>
  41
  42 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  43 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  44 MODULE_LICENSE("GPL");
  45
  46 /* ------------------------------------------------------------------ */
  47
  48 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  49 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  50 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  51
  52 module_param_array(video_nr, int, NULL, 0444);
  53 module_param_array(vbi_nr,   int, NULL, 0444);
  54 module_param_array(radio_nr, int, NULL, 0444);
  55
  56 MODULE_PARM_DESC(video_nr, "video device numbers");
  57 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  58 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  59
  60 static unsigned int video_debug;
  61 module_param(video_debug, int, 0644);
  62 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  63
  64 static unsigned int irq_debug;
  65 module_param(irq_debug, int, 0644);
  66 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  67
  68 static unsigned int vid_limit = 16;
  69 module_param(vid_limit, int, 0644);
  70 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  71
  72 #define dprintk(level, fmt, arg...)\
  73         do { if (video_debug >= level)\
  74                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  75         } while (0)
  76
  77 /* ------------------------------------------------------------------- */
  78 /* static data                                                         */
  79
  80 #define FORMAT_FLAGS_PACKED       0x01
  81
  82 static struct cx23885_fmt formats[] = {
  83         {
  84                 .name     = "8 bpp, gray",
  85                 .fourcc   = V4L2_PIX_FMT_GREY,
  86                 .depth    = 8,
  87                 .flags    = FORMAT_FLAGS_PACKED,
  88         }, {
  89                 .name     = "15 bpp RGB, le",
  90                 .fourcc   = V4L2_PIX_FMT_RGB555,
  91                 .depth    = 16,
  92                 .flags    = FORMAT_FLAGS_PACKED,
  93         }, {
  94                 .name     = "15 bpp RGB, be",
  95                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  96                 .depth    = 16,
  97                 .flags    = FORMAT_FLAGS_PACKED,
  98         }, {
  99                 .name     = "16 bpp RGB, le",
 100                 .fourcc   = V4L2_PIX_FMT_RGB565,
 101                 .depth    = 16,
 102                 .flags    = FORMAT_FLAGS_PACKED,
 103         }, {
 104                 .name     = "16 bpp RGB, be",
 105                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 106                 .depth    = 16,
 107                 .flags    = FORMAT_FLAGS_PACKED,
 108         }, {
 109                 .name     = "24 bpp RGB, le",
 110                 .fourcc   = V4L2_PIX_FMT_BGR24,
 111                 .depth    = 24,
 112                 .flags    = FORMAT_FLAGS_PACKED,
 113         }, {
 114                 .name     = "32 bpp RGB, le",
 115                 .fourcc   = V4L2_PIX_FMT_BGR32,
 116                 .depth    = 32,
 117                 .flags    = FORMAT_FLAGS_PACKED,
 118         }, {
 119                 .name     = "32 bpp RGB, be",
 120                 .fourcc   = V4L2_PIX_FMT_RGB32,
 121                 .depth    = 32,
 122                 .flags    = FORMAT_FLAGS_PACKED,
 123         }, {
 124                 .name     = "4:2:2, packed, YUYV",
 125                 .fourcc   = V4L2_PIX_FMT_YUYV,
 126                 .depth    = 16,
 127                 .flags    = FORMAT_FLAGS_PACKED,
 128         }, {
 129                 .name     = "4:2:2, packed, UYVY",
 130                 .fourcc   = V4L2_PIX_FMT_UYVY,
 131                 .depth    = 16,
 132                 .flags    = FORMAT_FLAGS_PACKED,
 133         },
 134 };
 135
 136 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 137 {
 138         unsigned int i;
 139
 140         for (i = 0; i < ARRAY_SIZE(formats); i++)
 141                 if (formats[i].fourcc == fourcc)
 142                         return formats+i;
 143
 144         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 145         return NULL;
 146 }
 147
 148 /* ------------------------------------------------------------------- */
 149
 150 static const struct v4l2_queryctrl no_ctl = {
 151         .name  = "42",
 152         .flags = V4L2_CTRL_FLAG_DISABLED,
 153 };
 154
 155 static struct cx23885_ctrl cx23885_ctls[] = {
 156         /* --- video --- */
 157         {
 158                 .v = {
 159                         .id            = V4L2_CID_BRIGHTNESS,
 160                         .name          = "Brightness",
 161                         .minimum       = 0x00,
 162                         .maximum       = 0xff,
 163                         .step          = 1,
 164                         .default_value = 0x7f,
 165                         .type          = V4L2_CTRL_TYPE_INTEGER,
 166                 },
 167                 .off                   = 128,
 168                 .reg                   = LUMA_CTRL,
 169                 .mask                  = 0x00ff,
 170                 .shift                 = 0,
 171         }, {
 172                 .v = {
 173                         .id            = V4L2_CID_CONTRAST,
 174                         .name          = "Contrast",
 175                         .minimum       = 0,
 176                         .maximum       = 0x7f,
 177                         .step          = 1,
 178                         .default_value = 0x3f,
 179                         .type          = V4L2_CTRL_TYPE_INTEGER,
 180                 },
 181                 .off                   = 0,
 182                 .reg                   = LUMA_CTRL,
 183                 .mask                  = 0xff00,
 184                 .shift                 = 8,
 185         }, {
 186                 .v = {
 187                         .id            = V4L2_CID_HUE,
 188                         .name          = "Hue",
 189                         .minimum       = -127,
 190                         .maximum       = 128,
 191                         .step          = 1,
 192                         .default_value = 0x0,
 193                         .type          = V4L2_CTRL_TYPE_INTEGER,
 194                 },
 195                 .off                   = 128,
 196                 .reg                   = CHROMA_CTRL,
 197                 .mask                  = 0xff0000,
 198                 .shift                 = 16,
 199         }, {
 200                 /* strictly, this only describes only U saturation.
 201                  * V saturation is handled specially through code.
 202                  */
 203                 .v = {
 204                         .id            = V4L2_CID_SATURATION,
 205                         .name          = "Saturation",
 206                         .minimum       = 0,
 207                         .maximum       = 0x7f,
 208                         .step          = 1,
 209                         .default_value = 0x3f,
 210                         .type          = V4L2_CTRL_TYPE_INTEGER,
 211                 },
 212                 .off                   = 0,
 213                 .reg                   = CHROMA_CTRL,
 214                 .mask                  = 0x00ff,
 215                 .shift                 = 0,
 216         }, {
 217         /* --- audio --- */
 218                 .v = {
 219                         .id            = V4L2_CID_AUDIO_MUTE,
 220                         .name          = "Mute",
 221                         .minimum       = 0,
 222                         .maximum       = 1,
 223                         .default_value = 1,
 224                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 225                 },
 226                 .reg                   = PATH1_CTL1,
 227                 .mask                  = (0x1f << 24),
 228                 .shift                 = 24,
 229         }, {
 230                 .v = {
 231                         .id            = V4L2_CID_AUDIO_VOLUME,
 232                         .name          = "Volume",
 233                         .minimum       = 0,
 234                         .maximum       = 0x3f,
 235                         .step          = 1,
 236                         .default_value = 0x3f,
 237                         .type          = V4L2_CTRL_TYPE_INTEGER,
 238                 },
 239                 .reg                   = PATH1_VOL_CTL,
 240                 .mask                  = 0xff,
 241                 .shift                 = 0,
 242         }
 243 };
 244 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 245
 246 /* Must be sorted from low to high control ID! */
 247 static const u32 cx23885_user_ctrls[] = {
 248         V4L2_CID_USER_CLASS,
 249         V4L2_CID_BRIGHTNESS,
 250         V4L2_CID_CONTRAST,
 251         V4L2_CID_SATURATION,
 252         V4L2_CID_HUE,
 253         V4L2_CID_AUDIO_VOLUME,
 254         V4L2_CID_AUDIO_MUTE,
 255         0
 256 };
 257
 258 static const u32 *ctrl_classes[] = {
 259         cx23885_user_ctrls,
 260         NULL
 261 };
 262
 263 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 264                  struct cx23885_dmaqueue *q, u32 count)
 265 {
 266         struct cx23885_buffer *buf;
 267         int bc;
 268
 269         for (bc = 0;; bc++) {
 270                 if (list_empty(&q->active))
 271                         break;
 272                 buf = list_entry(q->active.next,
 273                                  struct cx23885_buffer, vb.queue);
 274
 275                 /* count comes from the hw and is is 16bit wide --
 276                  * this trick handles wrap-arounds correctly for
 277                  * up to 32767 buffers in flight... */
 278                 if ((s16) (count - buf->count) < 0)
 279                         break;
 280
 281                 do_gettimeofday(&buf->vb.ts);
 282                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 283                         count, buf->count);
 284                 buf->vb.state = VIDEOBUF_DONE;
 285                 list_del(&buf->vb.queue);
 286                 wake_up(&buf->vb.done);
 287         }
 288         if (list_empty(&q->active))
 289                 del_timer(&q->timeout);
 290         else
 291                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 292         if (bc != 1)
 293                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 294                         __func__, bc);
 295 }
 296
 297 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 298 {
 299         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 300                 __func__,
 301                 (unsigned int)norm,
 302                 v4l2_norm_to_name(norm));
 303
 304         dev->tvnorm = norm;
 305
 306         call_all(dev, core, s_std, norm);
 307
 308         return 0;
 309 }
 310
 311 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 312                                     struct pci_dev *pci,
 313                                     struct video_device *template,
 314                                     char *type)
 315 {
 316         struct video_device *vfd;
 317         dprintk(1, "%s()\n", __func__);
 318
 319         vfd = video_device_alloc();
 320         if (NULL == vfd)
 321                 return NULL;
 322         *vfd = *template;
 323         vfd->v4l2_dev = &dev->v4l2_dev;
 324         vfd->release = video_device_release;
 325         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 326                  dev->name, type, cx23885_boards[dev->board].name);
 327         video_set_drvdata(vfd, dev);
 328         return vfd;
 329 }
 330
 331 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 332 {
 333         int i;
 334
 335         if (qctrl->id < V4L2_CID_BASE ||
 336             qctrl->id >= V4L2_CID_LASTP1)
 337                 return -EINVAL;
 338         for (i = 0; i < CX23885_CTLS; i++)
 339                 if (cx23885_ctls[i].v.id == qctrl->id)
 340                         break;
 341         if (i == CX23885_CTLS) {
 342                 *qctrl = no_ctl;
 343                 return 0;
 344         }
 345         *qctrl = cx23885_ctls[i].v;
 346         return 0;
 347 }
 348
 349 /* ------------------------------------------------------------------- */
 350 /* resource management                                                 */
 351
 352 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 353         unsigned int bit)
 354 {
 355         dprintk(1, "%s()\n", __func__);
 356         if (fh->resources & bit)
 357                 /* have it already allocated */
 358                 return 1;
 359
 360         /* is it free? */
 361         mutex_lock(&dev->lock);
 362         if (dev->resources & bit) {
 363                 /* no, someone else uses it */
 364                 mutex_unlock(&dev->lock);
 365                 return 0;
 366         }
 367         /* it's free, grab it */
 368         fh->resources  |= bit;
 369         dev->resources |= bit;
 370         dprintk(1, "res: get %d\n", bit);
 371         mutex_unlock(&dev->lock);
 372         return 1;
 373 }
 374
 375 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 376 {
 377         return fh->resources & bit;
 378 }
 379
 380 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 381 {
 382         return dev->resources & bit;
 383 }
 384
 385 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 386         unsigned int bits)
 387 {
 388         BUG_ON((fh->resources & bits) != bits);
 389         dprintk(1, "%s()\n", __func__);
 390
 391         mutex_lock(&dev->lock);
 392         fh->resources  &= ~bits;
 393         dev->resources &= ~bits;
 394         dprintk(1, "res: put %d\n", bits);
 395         mutex_unlock(&dev->lock);
 396 }
 397
 398 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 399 {
 400         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 401                 __func__,
 402                 input, INPUT(input)->vmux,
 403                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 404                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 405         dev->input = input;
 406
 407         if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
 408                 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2) {
 409                 /* Select Analog TV */
 410                 if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
 411                         cx23885_gpio_clear(dev, GPIO_0);
 412         }
 413
 414         /* Tell the internal A/V decoder */
 415         v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
 416                         INPUT(input)->vmux, 0, 0);
 417
 418         return 0;
 419 }
 420
 421 /* ------------------------------------------------------------------ */
 422 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 423         unsigned int height, enum v4l2_field field)
 424 {
 425         dprintk(1, "%s()\n", __func__);
 426         return 0;
 427 }
 428
 429 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 430                            struct cx23885_dmaqueue *q,
 431                            struct cx23885_buffer *buf)
 432 {
 433         dprintk(1, "%s()\n", __func__);
 434
 435         /* setup fifo + format */
 436         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 437                                 buf->bpl, buf->risc.dma);
 438         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 439
 440         /* reset counter */
 441         cx_write(VID_A_GPCNT_CTL, 3);
 442         q->count = 1;
 443
 444         /* enable irq */
 445         cx23885_irq_add_enable(dev, 0x01);
 446         cx_set(VID_A_INT_MSK, 0x000011);
 447
 448         /* start dma */
 449         cx_set(DEV_CNTRL2, (1<<5));
 450         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 451
 452         return 0;
 453 }
 454
 455
 456 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 457                                struct cx23885_dmaqueue *q)
 458 {
 459         struct cx23885_buffer *buf, *prev;
 460         struct list_head *item;
 461         dprintk(1, "%s()\n", __func__);
 462
 463         if (!list_empty(&q->active)) {
 464                 buf = list_entry(q->active.next, struct cx23885_buffer,
 465                         vb.queue);
 466                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 467                         buf, buf->vb.i);
 468                 cx23885_start_video_dma(dev, q, buf);
 469                 list_for_each(item, &q->active) {
 470                         buf = list_entry(item, struct cx23885_buffer,
 471                                 vb.queue);
 472                         buf->count    = q->count++;
 473                 }
 474                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 475                 return 0;
 476         }
 477
 478         prev = NULL;
 479         for (;;) {
 480                 if (list_empty(&q->queued))
 481                         return 0;
 482                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 483                         vb.queue);
 484                 if (NULL == prev) {
 485                         list_move_tail(&buf->vb.queue, &q->active);
 486                         cx23885_start_video_dma(dev, q, buf);
 487                         buf->vb.state = VIDEOBUF_ACTIVE;
 488                         buf->count    = q->count++;
 489                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 490                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 491                                 buf, buf->vb.i);
 492
 493                 } else if (prev->vb.width  == buf->vb.width  &&
 494                            prev->vb.height == buf->vb.height &&
 495                            prev->fmt       == buf->fmt) {
 496                         list_move_tail(&buf->vb.queue, &q->active);
 497                         buf->vb.state = VIDEOBUF_ACTIVE;
 498                         buf->count    = q->count++;
 499                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 500                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 501                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 502                                 buf, buf->vb.i);
 503                 } else {
 504                         return 0;
 505                 }
 506                 prev = buf;
 507         }
 508 }
 509
 510 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 511         unsigned int *size)
 512 {
 513         struct cx23885_fh *fh = q->priv_data;
 514
 515         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 516         if (0 == *count)
 517                 *count = 32;
 518         if (*size * *count > vid_limit * 1024 * 1024)
 519                 *count = (vid_limit * 1024 * 1024) / *size;
 520         return 0;
 521 }
 522
 523 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 524                enum v4l2_field field)
 525 {
 526         struct cx23885_fh *fh  = q->priv_data;
 527         struct cx23885_dev *dev = fh->dev;
 528         struct cx23885_buffer *buf =
 529                 container_of(vb, struct cx23885_buffer, vb);
 530         int rc, init_buffer = 0;
 531         u32 line0_offset, line1_offset;
 532         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 533
 534         BUG_ON(NULL == fh->fmt);
 535         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 536             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 537                 return -EINVAL;
 538         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 539         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 540                 return -EINVAL;
 541
 542         if (buf->fmt       != fh->fmt    ||
 543             buf->vb.width  != fh->width  ||
 544             buf->vb.height != fh->height ||
 545             buf->vb.field  != field) {
 546                 buf->fmt       = fh->fmt;
 547                 buf->vb.width  = fh->width;
 548                 buf->vb.height = fh->height;
 549                 buf->vb.field  = field;
 550                 init_buffer = 1;
 551         }
 552
 553         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 554                 init_buffer = 1;
 555                 rc = videobuf_iolock(q, &buf->vb, NULL);
 556                 if (0 != rc)
 557                         goto fail;
 558         }
 559
 560         if (init_buffer) {
 561                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 562                 switch (buf->vb.field) {
 563                 case V4L2_FIELD_TOP:
 564                         cx23885_risc_buffer(dev->pci, &buf->risc,
 565                                          dma->sglist, 0, UNSET,
 566                                          buf->bpl, 0, buf->vb.height);
 567                         break;
 568                 case V4L2_FIELD_BOTTOM:
 569                         cx23885_risc_buffer(dev->pci, &buf->risc,
 570                                          dma->sglist, UNSET, 0,
 571                                          buf->bpl, 0, buf->vb.height);
 572                         break;
 573                 case V4L2_FIELD_INTERLACED:
 574                         if (dev->tvnorm & V4L2_STD_NTSC) {
 575                                 /* cx25840 transmits NTSC bottom field first */
 576                                 dprintk(1, "%s() Creating NTSC risc\n",
 577                                         __func__);
 578                                 line0_offset = buf->bpl;
 579                                 line1_offset = 0;
 580                         } else {
 581                                 /* All other formats are top field first */
 582                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 583                                         __func__);
 584                                 line0_offset = 0;
 585                                 line1_offset = buf->bpl;
 586                         }
 587                         cx23885_risc_buffer(dev->pci, &buf->risc,
 588                                         dma->sglist, line0_offset,
 589                                         line1_offset,
 590                                         buf->bpl, buf->bpl,
 591                                         buf->vb.height >> 1);
 592                         break;
 593                 case V4L2_FIELD_SEQ_TB:
 594                         cx23885_risc_buffer(dev->pci, &buf->risc,
 595                                          dma->sglist,
 596                                          0, buf->bpl * (buf->vb.height >> 1),
 597                                          buf->bpl, 0,
 598                                          buf->vb.height >> 1);
 599                         break;
 600                 case V4L2_FIELD_SEQ_BT:
 601                         cx23885_risc_buffer(dev->pci, &buf->risc,
 602                                          dma->sglist,
 603                                          buf->bpl * (buf->vb.height >> 1), 0,
 604                                          buf->bpl, 0,
 605                                          buf->vb.height >> 1);
 606                         break;
 607                 default:
 608                         BUG();
 609                 }
 610         }
 611         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 612                 buf, buf->vb.i,
 613                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 614                 (unsigned long)buf->risc.dma);
 615
 616         buf->vb.state = VIDEOBUF_PREPARED;
 617         return 0;
 618
 619  fail:
 620         cx23885_free_buffer(q, buf);
 621         return rc;
 622 }
 623
 624 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 625 {
 626         struct cx23885_buffer   *buf = container_of(vb,
 627                 struct cx23885_buffer, vb);
 628         struct cx23885_buffer   *prev;
 629         struct cx23885_fh       *fh   = vq->priv_data;
 630         struct cx23885_dev      *dev  = fh->dev;
 631         struct cx23885_dmaqueue *q    = &dev->vidq;
 632
 633         /* add jump to stopper */
 634         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 635         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 636         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 637
 638         if (!list_empty(&q->queued)) {
 639                 list_add_tail(&buf->vb.queue, &q->queued);
 640                 buf->vb.state = VIDEOBUF_QUEUED;
 641                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 642                         buf, buf->vb.i);
 643
 644         } else if (list_empty(&q->active)) {
 645                 list_add_tail(&buf->vb.queue, &q->active);
 646                 cx23885_start_video_dma(dev, q, buf);
 647                 buf->vb.state = VIDEOBUF_ACTIVE;
 648                 buf->count    = q->count++;
 649                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 650                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 651                         buf, buf->vb.i);
 652
 653         } else {
 654                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 655                         vb.queue);
 656                 if (prev->vb.width  == buf->vb.width  &&
 657                     prev->vb.height == buf->vb.height &&
 658                     prev->fmt       == buf->fmt) {
 659                         list_add_tail(&buf->vb.queue, &q->active);
 660                         buf->vb.state = VIDEOBUF_ACTIVE;
 661                         buf->count    = q->count++;
 662                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 663                         /* 64 bit bits 63-32 */
 664                         prev->risc.jmp[2] = cpu_to_le32(0);
 665                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 666                                 buf, buf->vb.i);
 667
 668                 } else {
 669                         list_add_tail(&buf->vb.queue, &q->queued);
 670                         buf->vb.state = VIDEOBUF_QUEUED;
 671                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 672                                 buf, buf->vb.i);
 673                 }
 674         }
 675 }
 676
 677 static void buffer_release(struct videobuf_queue *q,
 678         struct videobuf_buffer *vb)
 679 {
 680         struct cx23885_buffer *buf = container_of(vb,
 681                 struct cx23885_buffer, vb);
 682
 683         cx23885_free_buffer(q, buf);
 684 }
 685
 686 static struct videobuf_queue_ops cx23885_video_qops = {
 687         .buf_setup    = buffer_setup,
 688         .buf_prepare  = buffer_prepare,
 689         .buf_queue    = buffer_queue,
 690         .buf_release  = buffer_release,
 691 };
 692
 693 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 694 {
 695         switch (fh->type) {
 696         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 697                 return &fh->vidq;
 698         case V4L2_BUF_TYPE_VBI_CAPTURE:
 699                 return &fh->vbiq;
 700         default:
 701                 BUG();
 702                 return NULL;
 703         }
 704 }
 705
 706 static int get_resource(struct cx23885_fh *fh)
 707 {
 708         switch (fh->type) {
 709         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 710                 return RESOURCE_VIDEO;
 711         case V4L2_BUF_TYPE_VBI_CAPTURE:
 712                 return RESOURCE_VBI;
 713         default:
 714                 BUG();
 715                 return 0;
 716         }
 717 }
 718
 719 static int video_open(struct file *file)
 720 {
 721         struct video_device *vdev = video_devdata(file);
 722         struct cx23885_dev *dev = video_drvdata(file);
 723         struct cx23885_fh *fh;
 724         enum v4l2_buf_type type = 0;
 725         int radio = 0;
 726
 727         switch (vdev->vfl_type) {
 728         case VFL_TYPE_GRABBER:
 729                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 730                 break;
 731         case VFL_TYPE_VBI:
 732                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
 733                 break;
 734         case VFL_TYPE_RADIO:
 735                 radio = 1;
 736                 break;
 737         }
 738
 739         dprintk(1, "open dev=%s radio=%d type=%s\n",
 740                 video_device_node_name(vdev), radio, v4l2_type_names[type]);
 741
 742         /* allocate + initialize per filehandle data */
 743         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 744         if (NULL == fh)
 745                 return -ENOMEM;
 746
 747         file->private_data = fh;
 748         fh->dev      = dev;
 749         fh->radio    = radio;
 750         fh->type     = type;
 751         fh->width    = 320;
 752         fh->height   = 240;
 753         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 754
 755         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 756                             &dev->pci->dev, &dev->slock,
 757                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 758                             V4L2_FIELD_INTERLACED,
 759                             sizeof(struct cx23885_buffer),
 760                             fh, NULL);
 761
 762         dprintk(1, "post videobuf_queue_init()\n");
 763
 764         return 0;
 765 }
 766
 767 static ssize_t video_read(struct file *file, char __user *data,
 768         size_t count, loff_t *ppos)
 769 {
 770         struct cx23885_fh *fh = file->private_data;
 771
 772         switch (fh->type) {
 773         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 774                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 775                         return -EBUSY;
 776                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 777                                          file->f_flags & O_NONBLOCK);
 778         case V4L2_BUF_TYPE_VBI_CAPTURE:
 779                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 780                         return -EBUSY;
 781                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 782                                             file->f_flags & O_NONBLOCK);
 783         default:
 784                 BUG();
 785                 return 0;
 786         }
 787 }
 788
 789 static unsigned int video_poll(struct file *file,
 790         struct poll_table_struct *wait)
 791 {
 792         struct cx23885_fh *fh = file->private_data;
 793         struct cx23885_buffer *buf;
 794         unsigned int rc = POLLERR;
 795
 796         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 797                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 798                         return POLLERR;
 799                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 800         }
 801
 802         mutex_lock(&fh->vidq.vb_lock);
 803         if (res_check(fh, RESOURCE_VIDEO)) {
 804                 /* streaming capture */
 805                 if (list_empty(&fh->vidq.stream))
 806                         goto done;
 807                 buf = list_entry(fh->vidq.stream.next,
 808                         struct cx23885_buffer, vb.stream);
 809         } else {
 810                 /* read() capture */
 811                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 812                 if (NULL == buf)
 813                         goto done;
 814         }
 815         poll_wait(file, &buf->vb.done, wait);
 816         if (buf->vb.state == VIDEOBUF_DONE ||
 817             buf->vb.state == VIDEOBUF_ERROR)
 818                 rc =  POLLIN|POLLRDNORM;
 819         else
 820                 rc = 0;
 821 done:
 822         mutex_unlock(&fh->vidq.vb_lock);
 823         return rc;
 824 }
 825
 826 static int video_release(struct file *file)
 827 {
 828         struct cx23885_fh *fh = file->private_data;
 829         struct cx23885_dev *dev = fh->dev;
 830
 831         /* turn off overlay */
 832         if (res_check(fh, RESOURCE_OVERLAY)) {
 833                 /* FIXME */
 834                 res_free(dev, fh, RESOURCE_OVERLAY);
 835         }
 836
 837         /* stop video capture */
 838         if (res_check(fh, RESOURCE_VIDEO)) {
 839                 videobuf_queue_cancel(&fh->vidq);
 840                 res_free(dev, fh, RESOURCE_VIDEO);
 841         }
 842         if (fh->vidq.read_buf) {
 843                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 844                 kfree(fh->vidq.read_buf);
 845         }
 846
 847         /* stop vbi capture */
 848         if (res_check(fh, RESOURCE_VBI)) {
 849                 if (fh->vbiq.streaming)
 850                         videobuf_streamoff(&fh->vbiq);
 851                 if (fh->vbiq.reading)
 852                         videobuf_read_stop(&fh->vbiq);
 853                 res_free(dev, fh, RESOURCE_VBI);
 854         }
 855
 856         videobuf_mmap_free(&fh->vidq);
 857         file->private_data = NULL;
 858         kfree(fh);
 859
 860         /* We are not putting the tuner to sleep here on exit, because
 861          * we want to use the mpeg encoder in another session to capture
 862          * tuner video. Closing this will result in no video to the encoder.
 863          */
 864
 865         return 0;
 866 }
 867
 868 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 869 {
 870         struct cx23885_fh *fh = file->private_data;
 871
 872         return videobuf_mmap_mapper(get_queue(fh), vma);
 873 }
 874
 875 /* ------------------------------------------------------------------ */
 876 /* VIDEO CTRL IOCTLS                                                  */
 877
 878 static int cx23885_get_control(struct cx23885_dev *dev,
 879         struct v4l2_control *ctl)
 880 {
 881         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 882         call_all(dev, core, g_ctrl, ctl);
 883         return 0;
 884 }
 885
 886 static int cx23885_set_control(struct cx23885_dev *dev,
 887         struct v4l2_control *ctl)
 888 {
 889         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)\n", __func__);
 890         call_all(dev, core, s_ctrl, ctl);
 891
 892         return 0;
 893 }
 894
 895 static void init_controls(struct cx23885_dev *dev)
 896 {
 897         struct v4l2_control ctrl;
 898         int i;
 899
 900         for (i = 0; i < CX23885_CTLS; i++) {
 901                 ctrl.id = cx23885_ctls[i].v.id;
 902                 ctrl.value = cx23885_ctls[i].v.default_value;
 903
 904                 cx23885_set_control(dev, &ctrl);
 905         }
 906 }
 907
 908 /* ------------------------------------------------------------------ */
 909 /* VIDEO IOCTLS                                                       */
 910
 911 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 912         struct v4l2_format *f)
 913 {
 914         struct cx23885_fh *fh   = priv;
 915
 916         f->fmt.pix.width        = fh->width;
 917         f->fmt.pix.height       = fh->height;
 918         f->fmt.pix.field        = fh->vidq.field;
 919         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 920         f->fmt.pix.bytesperline =
 921                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 922         f->fmt.pix.sizeimage =
 923                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 924
 925         return 0;
 926 }
 927
 928 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 929         struct v4l2_format *f)
 930 {
 931         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 932         struct cx23885_fmt *fmt;
 933         enum v4l2_field   field;
 934         unsigned int      maxw, maxh;
 935
 936         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 937         if (NULL == fmt)
 938                 return -EINVAL;
 939
 940         field = f->fmt.pix.field;
 941         maxw  = norm_maxw(dev->tvnorm);
 942         maxh  = norm_maxh(dev->tvnorm);
 943
 944         if (V4L2_FIELD_ANY == field) {
 945                 field = (f->fmt.pix.height > maxh/2)
 946                         ? V4L2_FIELD_INTERLACED
 947                         : V4L2_FIELD_BOTTOM;
 948         }
 949
 950         switch (field) {
 951         case V4L2_FIELD_TOP:
 952         case V4L2_FIELD_BOTTOM:
 953                 maxh = maxh / 2;
 954                 break;
 955         case V4L2_FIELD_INTERLACED:
 956                 break;
 957         default:
 958                 return -EINVAL;
 959         }
 960
 961         f->fmt.pix.field = field;
 962         v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
 963                               &f->fmt.pix.height, 32, maxh, 0, 0);
 964         f->fmt.pix.bytesperline =
 965                 (f->fmt.pix.width * fmt->depth) >> 3;
 966         f->fmt.pix.sizeimage =
 967                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 968
 969         return 0;
 970 }
 971
 972 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 973         struct v4l2_format *f)
 974 {
 975         struct cx23885_fh *fh = priv;
 976         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 977         struct v4l2_mbus_framefmt mbus_fmt;
 978         int err;
 979
 980         dprintk(2, "%s()\n", __func__);
 981         err = vidioc_try_fmt_vid_cap(file, priv, f);
 982
 983         if (0 != err)
 984                 return err;
 985         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 986         fh->width      = f->fmt.pix.width;
 987         fh->height     = f->fmt.pix.height;
 988         fh->vidq.field = f->fmt.pix.field;
 989         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
 990                 fh->width, fh->height, fh->vidq.field);
 991         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
 992         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
 993         v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
 994         return 0;
 995 }
 996
 997 static int vidioc_querycap(struct file *file, void  *priv,
 998         struct v4l2_capability *cap)
 999 {
1000         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1001
1002         strcpy(cap->driver, "cx23885");
1003         strlcpy(cap->card, cx23885_boards[dev->board].name,
1004                 sizeof(cap->card));
1005         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1006         cap->capabilities =
1007                 V4L2_CAP_VIDEO_CAPTURE |
1008                 V4L2_CAP_READWRITE     |
1009                 V4L2_CAP_STREAMING     |
1010                 V4L2_CAP_VBI_CAPTURE;
1011         if (UNSET != dev->tuner_type)
1012                 cap->capabilities |= V4L2_CAP_TUNER;
1013         return 0;
1014 }
1015
1016 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1017         struct v4l2_fmtdesc *f)
1018 {
1019         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1020                 return -EINVAL;
1021
1022         strlcpy(f->description, formats[f->index].name,
1023                 sizeof(f->description));
1024         f->pixelformat = formats[f->index].fourcc;
1025
1026         return 0;
1027 }
1028
1029 static int vidioc_reqbufs(struct file *file, void *priv,
1030         struct v4l2_requestbuffers *p)
1031 {
1032         struct cx23885_fh *fh = priv;
1033         return videobuf_reqbufs(get_queue(fh), p);
1034 }
1035
1036 static int vidioc_querybuf(struct file *file, void *priv,
1037         struct v4l2_buffer *p)
1038 {
1039         struct cx23885_fh *fh = priv;
1040         return videobuf_querybuf(get_queue(fh), p);
1041 }
1042
1043 static int vidioc_qbuf(struct file *file, void *priv,
1044         struct v4l2_buffer *p)
1045 {
1046         struct cx23885_fh *fh = priv;
1047         return videobuf_qbuf(get_queue(fh), p);
1048 }
1049
1050 static int vidioc_dqbuf(struct file *file, void *priv,
1051         struct v4l2_buffer *p)
1052 {
1053         struct cx23885_fh *fh = priv;
1054         return videobuf_dqbuf(get_queue(fh), p,
1055                                 file->f_flags & O_NONBLOCK);
1056 }
1057
1058 static int vidioc_streamon(struct file *file, void *priv,
1059         enum v4l2_buf_type i)
1060 {
1061         struct cx23885_fh *fh = priv;
1062         struct cx23885_dev *dev = fh->dev;
1063         dprintk(1, "%s()\n", __func__);
1064
1065         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1066                 return -EINVAL;
1067         if (unlikely(i != fh->type))
1068                 return -EINVAL;
1069
1070         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1071                 return -EBUSY;
1072         return videobuf_streamon(get_queue(fh));
1073 }
1074
1075 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1076 {
1077         struct cx23885_fh *fh = priv;
1078         struct cx23885_dev *dev = fh->dev;
1079         int err, res;
1080         dprintk(1, "%s()\n", __func__);
1081
1082         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1083                 return -EINVAL;
1084         if (i != fh->type)
1085                 return -EINVAL;
1086
1087         res = get_resource(fh);
1088         err = videobuf_streamoff(get_queue(fh));
1089         if (err < 0)
1090                 return err;
1091         res_free(dev, fh, res);
1092         return 0;
1093 }
1094
1095 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1096 {
1097         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1098         dprintk(1, "%s()\n", __func__);
1099
1100         mutex_lock(&dev->lock);
1101         cx23885_set_tvnorm(dev, *tvnorms);
1102         mutex_unlock(&dev->lock);
1103
1104         return 0;
1105 }
1106
1107 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1108 {
1109         static const char *iname[] = {
1110                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1111                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1112                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1113                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1114                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1115                 [CX23885_VMUX_COMPONENT]  = "Component",
1116                 [CX23885_VMUX_TELEVISION] = "Television",
1117                 [CX23885_VMUX_CABLE]      = "Cable TV",
1118                 [CX23885_VMUX_DVB]        = "DVB",
1119                 [CX23885_VMUX_DEBUG]      = "for debug only",
1120         };
1121         unsigned int n;
1122         dprintk(1, "%s()\n", __func__);
1123
1124         n = i->index;
1125         if (n >= 4)
1126                 return -EINVAL;
1127
1128         if (0 == INPUT(n)->type)
1129                 return -EINVAL;
1130
1131         i->index = n;
1132         i->type  = V4L2_INPUT_TYPE_CAMERA;
1133         strcpy(i->name, iname[INPUT(n)->type]);
1134         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1135                 (CX23885_VMUX_CABLE == INPUT(n)->type)) {
1136                 i->type = V4L2_INPUT_TYPE_TUNER;
1137                 i->std = CX23885_NORMS;
1138         }
1139         return 0;
1140 }
1141
1142 static int vidioc_enum_input(struct file *file, void *priv,
1143                                 struct v4l2_input *i)
1144 {
1145         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1146         dprintk(1, "%s()\n", __func__);
1147         return cx23885_enum_input(dev, i);
1148 }
1149
1150 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1151 {
1152         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1153
1154         *i = dev->input;
1155         dprintk(1, "%s() returns %d\n", __func__, *i);
1156         return 0;
1157 }
1158
1159 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1160 {
1161         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1162
1163         dprintk(1, "%s(%d)\n", __func__, i);
1164
1165         if (i >= 4) {
1166                 dprintk(1, "%s() -EINVAL\n", __func__);
1167                 return -EINVAL;
1168         }
1169
1170         mutex_lock(&dev->lock);
1171         cx23885_video_mux(dev, i);
1172         mutex_unlock(&dev->lock);
1173         return 0;
1174 }
1175
1176 static int vidioc_log_status(struct file *file, void *priv)
1177 {
1178         struct cx23885_fh  *fh  = priv;
1179         struct cx23885_dev *dev = fh->dev;
1180
1181         printk(KERN_INFO
1182                 "%s/0: ============  START LOG STATUS  ============\n",
1183                dev->name);
1184         call_all(dev, core, log_status);
1185         printk(KERN_INFO
1186                 "%s/0: =============  END LOG STATUS  =============\n",
1187                dev->name);
1188         return 0;
1189 }
1190
1191 static int vidioc_queryctrl(struct file *file, void *priv,
1192                                 struct v4l2_queryctrl *qctrl)
1193 {
1194         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1195         if (unlikely(qctrl->id == 0))
1196                 return -EINVAL;
1197         return cx23885_ctrl_query(qctrl);
1198 }
1199
1200 static int vidioc_g_ctrl(struct file *file, void *priv,
1201                                 struct v4l2_control *ctl)
1202 {
1203         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1204
1205         return cx23885_get_control(dev, ctl);
1206 }
1207
1208 static int vidioc_s_ctrl(struct file *file, void *priv,
1209                                 struct v4l2_control *ctl)
1210 {
1211         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1212
1213         return cx23885_set_control(dev, ctl);
1214 }
1215
1216 static int vidioc_g_tuner(struct file *file, void *priv,
1217                                 struct v4l2_tuner *t)
1218 {
1219         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1220
1221         if (unlikely(UNSET == dev->tuner_type))
1222                 return -EINVAL;
1223         if (0 != t->index)
1224                 return -EINVAL;
1225
1226         strcpy(t->name, "Television");
1227
1228         call_all(dev, tuner, g_tuner, t);
1229         return 0;
1230 }
1231
1232 static int vidioc_s_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 (UNSET == dev->tuner_type)
1238                 return -EINVAL;
1239         if (0 != t->index)
1240                 return -EINVAL;
1241         /* Update the A/V core */
1242         call_all(dev, tuner, s_tuner, t);
1243
1244         return 0;
1245 }
1246
1247 static int vidioc_g_frequency(struct file *file, void *priv,
1248                                 struct v4l2_frequency *f)
1249 {
1250         struct cx23885_fh *fh = priv;
1251         struct cx23885_dev *dev = fh->dev;
1252
1253         if (unlikely(UNSET == dev->tuner_type))
1254                 return -EINVAL;
1255
1256         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1257         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1258         f->frequency = dev->freq;
1259
1260         call_all(dev, tuner, g_frequency, f);
1261
1262         return 0;
1263 }
1264
1265 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1266 {
1267         if (unlikely(UNSET == dev->tuner_type))
1268                 return -EINVAL;
1269         if (unlikely(f->tuner != 0))
1270                 return -EINVAL;
1271
1272         mutex_lock(&dev->lock);
1273         dev->freq = f->frequency;
1274
1275         call_all(dev, tuner, s_frequency, f);
1276
1277         /* When changing channels it is required to reset TVAUDIO */
1278         msleep(10);
1279
1280         mutex_unlock(&dev->lock);
1281
1282         return 0;
1283 }
1284
1285 static int vidioc_s_frequency(struct file *file, void *priv,
1286                                 struct v4l2_frequency *f)
1287 {
1288         struct cx23885_fh *fh = priv;
1289         struct cx23885_dev *dev = fh->dev;
1290
1291         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1292                 return -EINVAL;
1293         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1294                 return -EINVAL;
1295
1296         return
1297                 cx23885_set_freq(dev, f);
1298 }
1299
1300 /* ----------------------------------------------------------- */
1301
1302 static void cx23885_vid_timeout(unsigned long data)
1303 {
1304         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1305         struct cx23885_dmaqueue *q = &dev->vidq;
1306         struct cx23885_buffer *buf;
1307         unsigned long flags;
1308
1309         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1310
1311         cx_clear(VID_A_DMA_CTL, 0x11);
1312
1313         spin_lock_irqsave(&dev->slock, flags);
1314         while (!list_empty(&q->active)) {
1315                 buf = list_entry(q->active.next,
1316                         struct cx23885_buffer, vb.queue);
1317                 list_del(&buf->vb.queue);
1318                 buf->vb.state = VIDEOBUF_ERROR;
1319                 wake_up(&buf->vb.done);
1320                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1321                         dev->name, buf, buf->vb.i,
1322                         (unsigned long)buf->risc.dma);
1323         }
1324         cx23885_restart_video_queue(dev, q);
1325         spin_unlock_irqrestore(&dev->slock, flags);
1326 }
1327
1328 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1329 {
1330         u32 mask, count;
1331         int handled = 0;
1332
1333         mask   = cx_read(VID_A_INT_MSK);
1334         if (0 == (status & mask))
1335                 return handled;
1336         cx_write(VID_A_INT_STAT, status);
1337
1338         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1339         /* risc op code error */
1340         if (status & (1 << 16)) {
1341                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1342                         dev->name);
1343                 cx_clear(VID_A_DMA_CTL, 0x11);
1344                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1345         }
1346
1347         /* risc1 y */
1348         if (status & 0x01) {
1349                 spin_lock(&dev->slock);
1350                 count = cx_read(VID_A_GPCNT);
1351                 cx23885_video_wakeup(dev, &dev->vidq, count);
1352                 spin_unlock(&dev->slock);
1353                 handled++;
1354         }
1355         /* risc2 y */
1356         if (status & 0x10) {
1357                 dprintk(2, "stopper video\n");
1358                 spin_lock(&dev->slock);
1359                 cx23885_restart_video_queue(dev, &dev->vidq);
1360                 spin_unlock(&dev->slock);
1361                 handled++;
1362         }
1363
1364         return handled;
1365 }
1366
1367 /* ----------------------------------------------------------- */
1368 /* exported stuff                                              */
1369
1370 static const struct v4l2_file_operations video_fops = {
1371         .owner         = THIS_MODULE,
1372         .open          = video_open,
1373         .release       = video_release,
1374         .read          = video_read,
1375         .poll          = video_poll,
1376         .mmap          = video_mmap,
1377         .ioctl         = video_ioctl2,
1378 };
1379
1380 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1381         .vidioc_querycap      = vidioc_querycap,
1382         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1383         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1384         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1385         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1386         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1387         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1388         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1389         .vidioc_reqbufs       = vidioc_reqbufs,
1390         .vidioc_querybuf      = vidioc_querybuf,
1391         .vidioc_qbuf          = vidioc_qbuf,
1392         .vidioc_dqbuf         = vidioc_dqbuf,
1393         .vidioc_s_std         = vidioc_s_std,
1394         .vidioc_enum_input    = vidioc_enum_input,
1395         .vidioc_g_input       = vidioc_g_input,
1396         .vidioc_s_input       = vidioc_s_input,
1397         .vidioc_log_status    = vidioc_log_status,
1398         .vidioc_queryctrl     = vidioc_queryctrl,
1399         .vidioc_g_ctrl        = vidioc_g_ctrl,
1400         .vidioc_s_ctrl        = vidioc_s_ctrl,
1401         .vidioc_streamon      = vidioc_streamon,
1402         .vidioc_streamoff     = vidioc_streamoff,
1403         .vidioc_g_tuner       = vidioc_g_tuner,
1404         .vidioc_s_tuner       = vidioc_s_tuner,
1405         .vidioc_g_frequency   = vidioc_g_frequency,
1406         .vidioc_s_frequency   = vidioc_s_frequency,
1407         .vidioc_g_chip_ident  = cx23885_g_chip_ident,
1408 #ifdef CONFIG_VIDEO_ADV_DEBUG
1409         .vidioc_g_register    = cx23885_g_register,
1410         .vidioc_s_register    = cx23885_s_register,
1411 #endif
1412 };
1413
1414 static struct video_device cx23885_vbi_template;
1415 static struct video_device cx23885_video_template = {
1416         .name                 = "cx23885-video",
1417         .fops                 = &video_fops,
1418         .ioctl_ops            = &video_ioctl_ops,
1419         .tvnorms              = CX23885_NORMS,
1420         .current_norm         = V4L2_STD_NTSC_M,
1421 };
1422
1423 static const struct v4l2_file_operations radio_fops = {
1424         .owner         = THIS_MODULE,
1425         .open          = video_open,
1426         .release       = video_release,
1427         .ioctl         = video_ioctl2,
1428 };
1429
1430
1431 void cx23885_video_unregister(struct cx23885_dev *dev)
1432 {
1433         dprintk(1, "%s()\n", __func__);
1434         cx23885_irq_remove(dev, 0x01);
1435
1436         if (dev->video_dev) {
1437                 if (video_is_registered(dev->video_dev))
1438                         video_unregister_device(dev->video_dev);
1439                 else
1440                         video_device_release(dev->video_dev);
1441                 dev->video_dev = NULL;
1442
1443                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1444         }
1445
1446         if (dev->audio_dev)
1447                 cx23885_audio_finidev(dev);
1448 }
1449
1450 int cx23885_video_register(struct cx23885_dev *dev)
1451 {
1452         int err;
1453
1454         dprintk(1, "%s()\n", __func__);
1455         spin_lock_init(&dev->slock);
1456
1457         /* Initialize VBI template */
1458         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1459                 sizeof(cx23885_vbi_template));
1460         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1461
1462         dev->tvnorm = cx23885_video_template.current_norm;
1463
1464         /* init video dma queues */
1465         INIT_LIST_HEAD(&dev->vidq.active);
1466         INIT_LIST_HEAD(&dev->vidq.queued);
1467         dev->vidq.timeout.function = cx23885_vid_timeout;
1468         dev->vidq.timeout.data = (unsigned long)dev;
1469         init_timer(&dev->vidq.timeout);
1470         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1471                 VID_A_DMA_CTL, 0x11, 0x00);
1472
1473         /* Don't enable VBI yet */
1474
1475         cx23885_irq_add_enable(dev, 0x01);
1476
1477         if ((TUNER_ABSENT != dev->tuner_type) &&
1478                         ((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
1479                 struct v4l2_subdev *sd = NULL;
1480
1481                 if (dev->tuner_addr)
1482                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1483                                 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1484                                 "tuner", dev->tuner_addr, NULL);
1485                 else
1486                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1487                                 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1488                                 "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1489                 if (sd) {
1490                         struct tuner_setup tun_setup;
1491
1492                         memset(&tun_setup, 0, sizeof(tun_setup));
1493                         tun_setup.mode_mask = T_ANALOG_TV;
1494                         tun_setup.type = dev->tuner_type;
1495                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1496                         tun_setup.tuner_callback = cx23885_tuner_callback;
1497
1498                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1499
1500                         if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) {
1501                                 struct xc2028_ctrl ctrl = {
1502                                         .fname = XC2028_DEFAULT_FIRMWARE,
1503                                         .max_len = 64
1504                                 };
1505                                 struct v4l2_priv_tun_config cfg = {
1506                                         .tuner = dev->tuner_type,
1507                                         .priv = &ctrl
1508                                 };
1509                                 v4l2_subdev_call(sd, tuner, s_config, &cfg);
1510                         }
1511                 }
1512         }
1513
1514         /* register v4l devices */
1515         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1516                 &cx23885_video_template, "video");
1517         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1518                                     video_nr[dev->nr]);
1519         if (err < 0) {
1520                 printk(KERN_INFO "%s: can't register video device\n",
1521                         dev->name);
1522                 goto fail_unreg;
1523         }
1524         printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
1525                dev->name, video_device_node_name(dev->video_dev));
1526
1527         /* Register ALSA audio device */
1528         dev->audio_dev = cx23885_audio_initdev(dev);
1529
1530         /* initial device configuration */
1531         mutex_lock(&dev->lock);
1532         cx23885_set_tvnorm(dev, dev->tvnorm);
1533         init_controls(dev);
1534         cx23885_video_mux(dev, 0);
1535         mutex_unlock(&dev->lock);
1536
1537         return 0;
1538
1539 fail_unreg:
1540         cx23885_video_unregister(dev);
1541         return err;
1542 }
1543