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

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/init.h>
  23 #include <linux/list.h>
  24 #include <linux/module.h>
  25 #include <linux/moduleparam.h>
  26 #include <linux/kmod.h>
  27 #include <linux/kernel.h>
  28 #include <linux/slab.h>
  29 #include <linux/smp_lock.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/delay.h>
  32 #include <linux/kthread.h>
  33 #include <asm/div64.h>
  34
  35 #include "cx23885.h"
  36 #include <media/v4l2-common.h>
  37 #include <media/v4l2-ioctl.h>
  38 #include "cx23885-ioctl.h"
  39
  40 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  41 MODULE_AUTHOR("Steven Toth <stoth@linuxtv.org>");
  42 MODULE_LICENSE("GPL");
  43
  44 /* ------------------------------------------------------------------ */
  45
  46 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  47 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  48 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  49
  50 module_param_array(video_nr, int, NULL, 0444);
  51 module_param_array(vbi_nr,   int, NULL, 0444);
  52 module_param_array(radio_nr, int, NULL, 0444);
  53
  54 MODULE_PARM_DESC(video_nr, "video device numbers");
  55 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  56 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  57
  58 static unsigned int video_debug;
  59 module_param(video_debug, int, 0644);
  60 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  61
  62 static unsigned int irq_debug;
  63 module_param(irq_debug, int, 0644);
  64 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  65
  66 static unsigned int vid_limit = 16;
  67 module_param(vid_limit, int, 0644);
  68 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  69
  70 #define dprintk(level, fmt, arg...)\
  71         do { if (video_debug >= level)\
  72                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg);\
  73         } while (0)
  74
  75 /* ------------------------------------------------------------------- */
  76 /* static data                                                         */
  77
  78 #define FORMAT_FLAGS_PACKED       0x01
  79
  80 static struct cx23885_fmt formats[] = {
  81         {
  82                 .name     = "8 bpp, gray",
  83                 .fourcc   = V4L2_PIX_FMT_GREY,
  84                 .depth    = 8,
  85                 .flags    = FORMAT_FLAGS_PACKED,
  86         }, {
  87                 .name     = "15 bpp RGB, le",
  88                 .fourcc   = V4L2_PIX_FMT_RGB555,
  89                 .depth    = 16,
  90                 .flags    = FORMAT_FLAGS_PACKED,
  91         }, {
  92                 .name     = "15 bpp RGB, be",
  93                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  94                 .depth    = 16,
  95                 .flags    = FORMAT_FLAGS_PACKED,
  96         }, {
  97                 .name     = "16 bpp RGB, le",
  98                 .fourcc   = V4L2_PIX_FMT_RGB565,
  99                 .depth    = 16,
 100                 .flags    = FORMAT_FLAGS_PACKED,
 101         }, {
 102                 .name     = "16 bpp RGB, be",
 103                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 104                 .depth    = 16,
 105                 .flags    = FORMAT_FLAGS_PACKED,
 106         }, {
 107                 .name     = "24 bpp RGB, le",
 108                 .fourcc   = V4L2_PIX_FMT_BGR24,
 109                 .depth    = 24,
 110                 .flags    = FORMAT_FLAGS_PACKED,
 111         }, {
 112                 .name     = "32 bpp RGB, le",
 113                 .fourcc   = V4L2_PIX_FMT_BGR32,
 114                 .depth    = 32,
 115                 .flags    = FORMAT_FLAGS_PACKED,
 116         }, {
 117                 .name     = "32 bpp RGB, be",
 118                 .fourcc   = V4L2_PIX_FMT_RGB32,
 119                 .depth    = 32,
 120                 .flags    = FORMAT_FLAGS_PACKED,
 121         }, {
 122                 .name     = "4:2:2, packed, YUYV",
 123                 .fourcc   = V4L2_PIX_FMT_YUYV,
 124                 .depth    = 16,
 125                 .flags    = FORMAT_FLAGS_PACKED,
 126         }, {
 127                 .name     = "4:2:2, packed, UYVY",
 128                 .fourcc   = V4L2_PIX_FMT_UYVY,
 129                 .depth    = 16,
 130                 .flags    = FORMAT_FLAGS_PACKED,
 131         },
 132 };
 133
 134 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 135 {
 136         unsigned int i;
 137
 138         for (i = 0; i < ARRAY_SIZE(formats); i++)
 139                 if (formats[i].fourcc == fourcc)
 140                         return formats+i;
 141
 142         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
 143         return NULL;
 144 }
 145
 146 /* ------------------------------------------------------------------- */
 147
 148 static const struct v4l2_queryctrl no_ctl = {
 149         .name  = "42",
 150         .flags = V4L2_CTRL_FLAG_DISABLED,
 151 };
 152
 153 static struct cx23885_ctrl cx23885_ctls[] = {
 154         /* --- video --- */
 155         {
 156                 .v = {
 157                         .id            = V4L2_CID_BRIGHTNESS,
 158                         .name          = "Brightness",
 159                         .minimum       = 0x00,
 160                         .maximum       = 0xff,
 161                         .step          = 1,
 162                         .default_value = 0x7f,
 163                         .type          = V4L2_CTRL_TYPE_INTEGER,
 164                 },
 165                 .off                   = 128,
 166                 .reg                   = LUMA_CTRL,
 167                 .mask                  = 0x00ff,
 168                 .shift                 = 0,
 169         }, {
 170                 .v = {
 171                         .id            = V4L2_CID_CONTRAST,
 172                         .name          = "Contrast",
 173                         .minimum       = 0,
 174                         .maximum       = 0xff,
 175                         .step          = 1,
 176                         .default_value = 0x3f,
 177                         .type          = V4L2_CTRL_TYPE_INTEGER,
 178                 },
 179                 .off                   = 0,
 180                 .reg                   = LUMA_CTRL,
 181                 .mask                  = 0xff00,
 182                 .shift                 = 8,
 183         }, {
 184                 .v = {
 185                         .id            = V4L2_CID_HUE,
 186                         .name          = "Hue",
 187                         .minimum       = 0,
 188                         .maximum       = 0xff,
 189                         .step          = 1,
 190                         .default_value = 0x7f,
 191                         .type          = V4L2_CTRL_TYPE_INTEGER,
 192                 },
 193                 .off                   = 128,
 194                 .reg                   = CHROMA_CTRL,
 195                 .mask                  = 0xff0000,
 196                 .shift                 = 16,
 197         }, {
 198                 /* strictly, this only describes only U saturation.
 199                  * V saturation is handled specially through code.
 200                  */
 201                 .v = {
 202                         .id            = V4L2_CID_SATURATION,
 203                         .name          = "Saturation",
 204                         .minimum       = 0,
 205                         .maximum       = 0xff,
 206                         .step          = 1,
 207                         .default_value = 0x7f,
 208                         .type          = V4L2_CTRL_TYPE_INTEGER,
 209                 },
 210                 .off                   = 0,
 211                 .reg                   = CHROMA_CTRL,
 212                 .mask                  = 0x00ff,
 213                 .shift                 = 0,
 214         }, {
 215         /* --- audio --- */
 216                 .v = {
 217                         .id            = V4L2_CID_AUDIO_MUTE,
 218                         .name          = "Mute",
 219                         .minimum       = 0,
 220                         .maximum       = 1,
 221                         .default_value = 1,
 222                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 223                 },
 224                 .reg                   = PATH1_CTL1,
 225                 .mask                  = (0x1f << 24),
 226                 .shift                 = 24,
 227         }, {
 228                 .v = {
 229                         .id            = V4L2_CID_AUDIO_VOLUME,
 230                         .name          = "Volume",
 231                         .minimum       = 0,
 232                         .maximum       = 0x3f,
 233                         .step          = 1,
 234                         .default_value = 0x3f,
 235                         .type          = V4L2_CTRL_TYPE_INTEGER,
 236                 },
 237                 .reg                   = PATH1_VOL_CTL,
 238                 .mask                  = 0xff,
 239                 .shift                 = 0,
 240         }
 241 };
 242 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 243
 244 /* Must be sorted from low to high control ID! */
 245 static const u32 cx23885_user_ctrls[] = {
 246         V4L2_CID_USER_CLASS,
 247         V4L2_CID_BRIGHTNESS,
 248         V4L2_CID_CONTRAST,
 249         V4L2_CID_SATURATION,
 250         V4L2_CID_HUE,
 251         V4L2_CID_AUDIO_VOLUME,
 252         V4L2_CID_AUDIO_MUTE,
 253         0
 254 };
 255
 256 static const u32 *ctrl_classes[] = {
 257         cx23885_user_ctrls,
 258         NULL
 259 };
 260
 261 static void cx23885_video_wakeup(struct cx23885_dev *dev,
 262                  struct cx23885_dmaqueue *q, u32 count)
 263 {
 264         struct cx23885_buffer *buf;
 265         int bc;
 266
 267         for (bc = 0;; bc++) {
 268                 if (list_empty(&q->active))
 269                         break;
 270                 buf = list_entry(q->active.next,
 271                                  struct cx23885_buffer, vb.queue);
 272
 273                 /* count comes from the hw and is is 16bit wide --
 274                  * this trick handles wrap-arounds correctly for
 275                  * up to 32767 buffers in flight... */
 276                 if ((s16) (count - buf->count) < 0)
 277                         break;
 278
 279                 do_gettimeofday(&buf->vb.ts);
 280                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 281                         count, buf->count);
 282                 buf->vb.state = VIDEOBUF_DONE;
 283                 list_del(&buf->vb.queue);
 284                 wake_up(&buf->vb.done);
 285         }
 286         if (list_empty(&q->active))
 287                 del_timer(&q->timeout);
 288         else
 289                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 290         if (bc != 1)
 291                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 292                         __func__, bc);
 293 }
 294
 295 static int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 296 {
 297         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 298                 __func__,
 299                 (unsigned int)norm,
 300                 v4l2_norm_to_name(norm));
 301
 302         dev->tvnorm = norm;
 303
 304         call_all(dev, core, s_std, norm);
 305
 306         return 0;
 307 }
 308
 309 static struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 310                                     struct pci_dev *pci,
 311                                     struct video_device *template,
 312                                     char *type)
 313 {
 314         struct video_device *vfd;
 315         dprintk(1, "%s()\n", __func__);
 316
 317         vfd = video_device_alloc();
 318         if (NULL == vfd)
 319                 return NULL;
 320         *vfd = *template;
 321         vfd->minor = -1;
 322         vfd->v4l2_dev = &dev->v4l2_dev;
 323         vfd->release = video_device_release;
 324         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 325                  dev->name, type, cx23885_boards[dev->board].name);
 326         return vfd;
 327 }
 328
 329 static int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 330 {
 331         int i;
 332
 333         if (qctrl->id < V4L2_CID_BASE ||
 334             qctrl->id >= V4L2_CID_LASTP1)
 335                 return -EINVAL;
 336         for (i = 0; i < CX23885_CTLS; i++)
 337                 if (cx23885_ctls[i].v.id == qctrl->id)
 338                         break;
 339         if (i == CX23885_CTLS) {
 340                 *qctrl = no_ctl;
 341                 return 0;
 342         }
 343         *qctrl = cx23885_ctls[i].v;
 344         return 0;
 345 }
 346
 347 /* ------------------------------------------------------------------- */
 348 /* resource management                                                 */
 349
 350 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 351         unsigned int bit)
 352 {
 353         dprintk(1, "%s()\n", __func__);
 354         if (fh->resources & bit)
 355                 /* have it already allocated */
 356                 return 1;
 357
 358         /* is it free? */
 359         mutex_lock(&dev->lock);
 360         if (dev->resources & bit) {
 361                 /* no, someone else uses it */
 362                 mutex_unlock(&dev->lock);
 363                 return 0;
 364         }
 365         /* it's free, grab it */
 366         fh->resources  |= bit;
 367         dev->resources |= bit;
 368         dprintk(1, "res: get %d\n", bit);
 369         mutex_unlock(&dev->lock);
 370         return 1;
 371 }
 372
 373 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 374 {
 375         return fh->resources & bit;
 376 }
 377
 378 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 379 {
 380         return dev->resources & bit;
 381 }
 382
 383 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 384         unsigned int bits)
 385 {
 386         BUG_ON((fh->resources & bits) != bits);
 387         dprintk(1, "%s()\n", __func__);
 388
 389         mutex_lock(&dev->lock);
 390         fh->resources  &= ~bits;
 391         dev->resources &= ~bits;
 392         dprintk(1, "res: put %d\n", bits);
 393         mutex_unlock(&dev->lock);
 394 }
 395
 396 static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 397 {
 398         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 399                 __func__,
 400                 input, INPUT(input)->vmux,
 401                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 402                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 403         dev->input = input;
 404
 405         if (dev->board == CX23885_BOARD_MYGICA_X8506 ||
 406                 dev->board == CX23885_BOARD_MAGICPRO_PROHDTVE2) {
 407                 /* Select Analog TV */
 408                 if (INPUT(input)->type == CX23885_VMUX_TELEVISION)
 409                         cx23885_gpio_clear(dev, GPIO_0);
 410         }
 411
 412         /* Tell the internal A/V decoder */
 413         v4l2_subdev_call(dev->sd_cx25840, video, s_routing,
 414                         INPUT(input)->vmux, 0, 0);
 415
 416         return 0;
 417 }
 418
 419 /* ------------------------------------------------------------------ */
 420 static int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 421         unsigned int height, enum v4l2_field field)
 422 {
 423         dprintk(1, "%s()\n", __func__);
 424         return 0;
 425 }
 426
 427 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 428                            struct cx23885_dmaqueue *q,
 429                            struct cx23885_buffer *buf)
 430 {
 431         dprintk(1, "%s()\n", __func__);
 432
 433         /* setup fifo + format */
 434         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 435                                 buf->bpl, buf->risc.dma);
 436         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 437
 438         /* reset counter */
 439         cx_write(VID_A_GPCNT_CTL, 3);
 440         q->count = 1;
 441
 442         /* enable irq */
 443         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 444         cx_set(VID_A_INT_MSK, 0x000011);
 445
 446         /* start dma */
 447         cx_set(DEV_CNTRL2, (1<<5));
 448         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 449
 450         return 0;
 451 }
 452
 453
 454 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 455                                struct cx23885_dmaqueue *q)
 456 {
 457         struct cx23885_buffer *buf, *prev;
 458         struct list_head *item;
 459         dprintk(1, "%s()\n", __func__);
 460
 461         if (!list_empty(&q->active)) {
 462                 buf = list_entry(q->active.next, struct cx23885_buffer,
 463                         vb.queue);
 464                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 465                         buf, buf->vb.i);
 466                 cx23885_start_video_dma(dev, q, buf);
 467                 list_for_each(item, &q->active) {
 468                         buf = list_entry(item, struct cx23885_buffer,
 469                                 vb.queue);
 470                         buf->count    = q->count++;
 471                 }
 472                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 473                 return 0;
 474         }
 475
 476         prev = NULL;
 477         for (;;) {
 478                 if (list_empty(&q->queued))
 479                         return 0;
 480                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 481                         vb.queue);
 482                 if (NULL == prev) {
 483                         list_move_tail(&buf->vb.queue, &q->active);
 484                         cx23885_start_video_dma(dev, q, buf);
 485                         buf->vb.state = VIDEOBUF_ACTIVE;
 486                         buf->count    = q->count++;
 487                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 488                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 489                                 buf, buf->vb.i);
 490
 491                 } else if (prev->vb.width  == buf->vb.width  &&
 492                            prev->vb.height == buf->vb.height &&
 493                            prev->fmt       == buf->fmt) {
 494                         list_move_tail(&buf->vb.queue, &q->active);
 495                         buf->vb.state = VIDEOBUF_ACTIVE;
 496                         buf->count    = q->count++;
 497                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 498                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 499                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 500                                 buf, buf->vb.i);
 501                 } else {
 502                         return 0;
 503                 }
 504                 prev = buf;
 505         }
 506 }
 507
 508 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 509         unsigned int *size)
 510 {
 511         struct cx23885_fh *fh = q->priv_data;
 512
 513         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 514         if (0 == *count)
 515                 *count = 32;
 516         while (*size * *count > vid_limit * 1024 * 1024)
 517                 (*count)--;
 518         return 0;
 519 }
 520
 521 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 522                enum v4l2_field field)
 523 {
 524         struct cx23885_fh *fh  = q->priv_data;
 525         struct cx23885_dev *dev = fh->dev;
 526         struct cx23885_buffer *buf =
 527                 container_of(vb, struct cx23885_buffer, vb);
 528         int rc, init_buffer = 0;
 529         u32 line0_offset, line1_offset;
 530         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 531
 532         BUG_ON(NULL == fh->fmt);
 533         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 534             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 535                 return -EINVAL;
 536         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 537         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 538                 return -EINVAL;
 539
 540         if (buf->fmt       != fh->fmt    ||
 541             buf->vb.width  != fh->width  ||
 542             buf->vb.height != fh->height ||
 543             buf->vb.field  != field) {
 544                 buf->fmt       = fh->fmt;
 545                 buf->vb.width  = fh->width;
 546                 buf->vb.height = fh->height;
 547                 buf->vb.field  = field;
 548                 init_buffer = 1;
 549         }
 550
 551         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 552                 init_buffer = 1;
 553                 rc = videobuf_iolock(q, &buf->vb, NULL);
 554                 if (0 != rc)
 555                         goto fail;
 556         }
 557
 558         if (init_buffer) {
 559                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 560                 switch (buf->vb.field) {
 561                 case V4L2_FIELD_TOP:
 562                         cx23885_risc_buffer(dev->pci, &buf->risc,
 563                                          dma->sglist, 0, UNSET,
 564                                          buf->bpl, 0, buf->vb.height);
 565                         break;
 566                 case V4L2_FIELD_BOTTOM:
 567                         cx23885_risc_buffer(dev->pci, &buf->risc,
 568                                          dma->sglist, UNSET, 0,
 569                                          buf->bpl, 0, buf->vb.height);
 570                         break;
 571                 case V4L2_FIELD_INTERLACED:
 572                         if (dev->tvnorm & V4L2_STD_NTSC) {
 573                                 /* cx25840 transmits NTSC bottom field first */
 574                                 dprintk(1, "%s() Creating NTSC risc\n",
 575                                         __func__);
 576                                 line0_offset = buf->bpl;
 577                                 line1_offset = 0;
 578                         } else {
 579                                 /* All other formats are top field first */
 580                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 581                                         __func__);
 582                                 line0_offset = 0;
 583                                 line1_offset = buf->bpl;
 584                         }
 585                         cx23885_risc_buffer(dev->pci, &buf->risc,
 586                                         dma->sglist, line0_offset,
 587                                         line1_offset,
 588                                         buf->bpl, buf->bpl,
 589                                         buf->vb.height >> 1);
 590                         break;
 591                 case V4L2_FIELD_SEQ_TB:
 592                         cx23885_risc_buffer(dev->pci, &buf->risc,
 593                                          dma->sglist,
 594                                          0, buf->bpl * (buf->vb.height >> 1),
 595                                          buf->bpl, 0,
 596                                          buf->vb.height >> 1);
 597                         break;
 598                 case V4L2_FIELD_SEQ_BT:
 599                         cx23885_risc_buffer(dev->pci, &buf->risc,
 600                                          dma->sglist,
 601                                          buf->bpl * (buf->vb.height >> 1), 0,
 602                                          buf->bpl, 0,
 603                                          buf->vb.height >> 1);
 604                         break;
 605                 default:
 606                         BUG();
 607                 }
 608         }
 609         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 610                 buf, buf->vb.i,
 611                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 612                 (unsigned long)buf->risc.dma);
 613
 614         buf->vb.state = VIDEOBUF_PREPARED;
 615         return 0;
 616
 617  fail:
 618         cx23885_free_buffer(q, buf);
 619         return rc;
 620 }
 621
 622 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 623 {
 624         struct cx23885_buffer   *buf = container_of(vb,
 625                 struct cx23885_buffer, vb);
 626         struct cx23885_buffer   *prev;
 627         struct cx23885_fh       *fh   = vq->priv_data;
 628         struct cx23885_dev      *dev  = fh->dev;
 629         struct cx23885_dmaqueue *q    = &dev->vidq;
 630
 631         /* add jump to stopper */
 632         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 633         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 634         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 635
 636         if (!list_empty(&q->queued)) {
 637                 list_add_tail(&buf->vb.queue, &q->queued);
 638                 buf->vb.state = VIDEOBUF_QUEUED;
 639                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 640                         buf, buf->vb.i);
 641
 642         } else if (list_empty(&q->active)) {
 643                 list_add_tail(&buf->vb.queue, &q->active);
 644                 cx23885_start_video_dma(dev, q, buf);
 645                 buf->vb.state = VIDEOBUF_ACTIVE;
 646                 buf->count    = q->count++;
 647                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 648                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 649                         buf, buf->vb.i);
 650
 651         } else {
 652                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 653                         vb.queue);
 654                 if (prev->vb.width  == buf->vb.width  &&
 655                     prev->vb.height == buf->vb.height &&
 656                     prev->fmt       == buf->fmt) {
 657                         list_add_tail(&buf->vb.queue, &q->active);
 658                         buf->vb.state = VIDEOBUF_ACTIVE;
 659                         buf->count    = q->count++;
 660                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 661                         /* 64 bit bits 63-32 */
 662                         prev->risc.jmp[2] = cpu_to_le32(0);
 663                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 664                                 buf, buf->vb.i);
 665
 666                 } else {
 667                         list_add_tail(&buf->vb.queue, &q->queued);
 668                         buf->vb.state = VIDEOBUF_QUEUED;
 669                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 670                                 buf, buf->vb.i);
 671                 }
 672         }
 673 }
 674
 675 static void buffer_release(struct videobuf_queue *q,
 676         struct videobuf_buffer *vb)
 677 {
 678         struct cx23885_buffer *buf = container_of(vb,
 679                 struct cx23885_buffer, vb);
 680
 681         cx23885_free_buffer(q, buf);
 682 }
 683
 684 static struct videobuf_queue_ops cx23885_video_qops = {
 685         .buf_setup    = buffer_setup,
 686         .buf_prepare  = buffer_prepare,
 687         .buf_queue    = buffer_queue,
 688         .buf_release  = buffer_release,
 689 };
 690
 691 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 692 {
 693         switch (fh->type) {
 694         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 695                 return &fh->vidq;
 696         case V4L2_BUF_TYPE_VBI_CAPTURE:
 697                 return &fh->vbiq;
 698         default:
 699                 BUG();
 700                 return NULL;
 701         }
 702 }
 703
 704 static int get_resource(struct cx23885_fh *fh)
 705 {
 706         switch (fh->type) {
 707         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 708                 return RESOURCE_VIDEO;
 709         case V4L2_BUF_TYPE_VBI_CAPTURE:
 710                 return RESOURCE_VBI;
 711         default:
 712                 BUG();
 713                 return 0;
 714         }
 715 }
 716
 717 static int video_open(struct file *file)
 718 {
 719         int minor = video_devdata(file)->minor;
 720         struct cx23885_dev *h, *dev = NULL;
 721         struct cx23885_fh *fh;
 722         struct list_head *list;
 723         enum v4l2_buf_type type = 0;
 724         int radio = 0;
 725
 726         lock_kernel();
 727         list_for_each(list, &cx23885_devlist) {
 728                 h = list_entry(list, struct cx23885_dev, devlist);
 729                 if (h->video_dev &&
 730                     h->video_dev->minor == minor) {
 731                         dev  = h;
 732                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 733                 }
 734                 if (h->vbi_dev &&
 735                     h->vbi_dev->minor == minor) {
 736                         dev  = h;
 737                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 738                 }
 739                 if (h->radio_dev &&
 740                     h->radio_dev->minor == minor) {
 741                         radio = 1;
 742                         dev   = h;
 743                 }
 744         }
 745         if (NULL == dev) {
 746                 unlock_kernel();
 747                 return -ENODEV;
 748         }
 749
 750         dprintk(1, "open minor=%d radio=%d type=%s\n",
 751                 minor, radio, v4l2_type_names[type]);
 752
 753         /* allocate + initialize per filehandle data */
 754         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 755         if (NULL == fh) {
 756                 unlock_kernel();
 757                 return -ENOMEM;
 758         }
 759         file->private_data = fh;
 760         fh->dev      = dev;
 761         fh->radio    = radio;
 762         fh->type     = type;
 763         fh->width    = 320;
 764         fh->height   = 240;
 765         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 766
 767         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 768                             &dev->pci->dev, &dev->slock,
 769                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 770                             V4L2_FIELD_INTERLACED,
 771                             sizeof(struct cx23885_buffer),
 772                             fh);
 773
 774         dprintk(1, "post videobuf_queue_init()\n");
 775
 776         unlock_kernel();
 777
 778         return 0;
 779 }
 780
 781 static ssize_t video_read(struct file *file, char __user *data,
 782         size_t count, loff_t *ppos)
 783 {
 784         struct cx23885_fh *fh = file->private_data;
 785
 786         switch (fh->type) {
 787         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 788                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 789                         return -EBUSY;
 790                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 791                                          file->f_flags & O_NONBLOCK);
 792         case V4L2_BUF_TYPE_VBI_CAPTURE:
 793                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 794                         return -EBUSY;
 795                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 796                                             file->f_flags & O_NONBLOCK);
 797         default:
 798                 BUG();
 799                 return 0;
 800         }
 801 }
 802
 803 static unsigned int video_poll(struct file *file,
 804         struct poll_table_struct *wait)
 805 {
 806         struct cx23885_fh *fh = file->private_data;
 807         struct cx23885_buffer *buf;
 808         unsigned int rc = POLLERR;
 809
 810         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 811                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 812                         return POLLERR;
 813                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 814         }
 815
 816         mutex_lock(&fh->vidq.vb_lock);
 817         if (res_check(fh, RESOURCE_VIDEO)) {
 818                 /* streaming capture */
 819                 if (list_empty(&fh->vidq.stream))
 820                         goto done;
 821                 buf = list_entry(fh->vidq.stream.next,
 822                         struct cx23885_buffer, vb.stream);
 823         } else {
 824                 /* read() capture */
 825                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 826                 if (NULL == buf)
 827                         goto done;
 828         }
 829         poll_wait(file, &buf->vb.done, wait);
 830         if (buf->vb.state == VIDEOBUF_DONE ||
 831             buf->vb.state == VIDEOBUF_ERROR)
 832                 rc =  POLLIN|POLLRDNORM;
 833         else
 834                 rc = 0;
 835 done:
 836         mutex_unlock(&fh->vidq.vb_lock);
 837         return rc;
 838 }
 839
 840 static int video_release(struct file *file)
 841 {
 842         struct cx23885_fh *fh = file->private_data;
 843         struct cx23885_dev *dev = fh->dev;
 844
 845         /* turn off overlay */
 846         if (res_check(fh, RESOURCE_OVERLAY)) {
 847                 /* FIXME */
 848                 res_free(dev, fh, RESOURCE_OVERLAY);
 849         }
 850
 851         /* stop video capture */
 852         if (res_check(fh, RESOURCE_VIDEO)) {
 853                 videobuf_queue_cancel(&fh->vidq);
 854                 res_free(dev, fh, RESOURCE_VIDEO);
 855         }
 856         if (fh->vidq.read_buf) {
 857                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 858                 kfree(fh->vidq.read_buf);
 859         }
 860
 861         /* stop vbi capture */
 862         if (res_check(fh, RESOURCE_VBI)) {
 863                 if (fh->vbiq.streaming)
 864                         videobuf_streamoff(&fh->vbiq);
 865                 if (fh->vbiq.reading)
 866                         videobuf_read_stop(&fh->vbiq);
 867                 res_free(dev, fh, RESOURCE_VBI);
 868         }
 869
 870         videobuf_mmap_free(&fh->vidq);
 871         file->private_data = NULL;
 872         kfree(fh);
 873
 874         /* We are not putting the tuner to sleep here on exit, because
 875          * we want to use the mpeg encoder in another session to capture
 876          * tuner video. Closing this will result in no video to the encoder.
 877          */
 878
 879         return 0;
 880 }
 881
 882 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 883 {
 884         struct cx23885_fh *fh = file->private_data;
 885
 886         return videobuf_mmap_mapper(get_queue(fh), vma);
 887 }
 888
 889 /* ------------------------------------------------------------------ */
 890 /* VIDEO CTRL IOCTLS                                                  */
 891
 892 static int cx23885_get_control(struct cx23885_dev *dev,
 893         struct v4l2_control *ctl)
 894 {
 895         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 896         call_all(dev, core, g_ctrl, ctl);
 897         return 0;
 898 }
 899
 900 static int cx23885_set_control(struct cx23885_dev *dev,
 901         struct v4l2_control *ctl)
 902 {
 903         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 904                 " (disabled - no action)\n", __func__);
 905         return 0;
 906 }
 907
 908 static void init_controls(struct cx23885_dev *dev)
 909 {
 910         struct v4l2_control ctrl;
 911         int i;
 912
 913         for (i = 0; i < CX23885_CTLS; i++) {
 914                 ctrl.id = cx23885_ctls[i].v.id;
 915                 ctrl.value = cx23885_ctls[i].v.default_value;
 916
 917                 cx23885_set_control(dev, &ctrl);
 918         }
 919 }
 920
 921 /* ------------------------------------------------------------------ */
 922 /* VIDEO IOCTLS                                                       */
 923
 924 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 925         struct v4l2_format *f)
 926 {
 927         struct cx23885_fh *fh   = priv;
 928
 929         f->fmt.pix.width        = fh->width;
 930         f->fmt.pix.height       = fh->height;
 931         f->fmt.pix.field        = fh->vidq.field;
 932         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 933         f->fmt.pix.bytesperline =
 934                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 935         f->fmt.pix.sizeimage =
 936                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 937
 938         return 0;
 939 }
 940
 941 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 942         struct v4l2_format *f)
 943 {
 944         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 945         struct cx23885_fmt *fmt;
 946         enum v4l2_field   field;
 947         unsigned int      maxw, maxh;
 948
 949         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 950         if (NULL == fmt)
 951                 return -EINVAL;
 952
 953         field = f->fmt.pix.field;
 954         maxw  = norm_maxw(dev->tvnorm);
 955         maxh  = norm_maxh(dev->tvnorm);
 956
 957         if (V4L2_FIELD_ANY == field) {
 958                 field = (f->fmt.pix.height > maxh/2)
 959                         ? V4L2_FIELD_INTERLACED
 960                         : V4L2_FIELD_BOTTOM;
 961         }
 962
 963         switch (field) {
 964         case V4L2_FIELD_TOP:
 965         case V4L2_FIELD_BOTTOM:
 966                 maxh = maxh / 2;
 967                 break;
 968         case V4L2_FIELD_INTERLACED:
 969                 break;
 970         default:
 971                 return -EINVAL;
 972         }
 973
 974         f->fmt.pix.field = field;
 975         v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
 976                               &f->fmt.pix.height, 32, maxh, 0, 0);
 977         f->fmt.pix.bytesperline =
 978                 (f->fmt.pix.width * fmt->depth) >> 3;
 979         f->fmt.pix.sizeimage =
 980                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 981
 982         return 0;
 983 }
 984
 985 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 986         struct v4l2_format *f)
 987 {
 988         struct cx23885_fh *fh = priv;
 989         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 990         int err;
 991
 992         dprintk(2, "%s()\n", __func__);
 993         err = vidioc_try_fmt_vid_cap(file, priv, f);
 994
 995         if (0 != err)
 996                 return err;
 997         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 998         fh->width      = f->fmt.pix.width;
 999         fh->height     = f->fmt.pix.height;
1000         fh->vidq.field = f->fmt.pix.field;
1001         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
1002                 fh->width, fh->height, fh->vidq.field);
1003         call_all(dev, video, s_fmt, f);
1004         return 0;
1005 }
1006
1007 static int vidioc_querycap(struct file *file, void  *priv,
1008         struct v4l2_capability *cap)
1009 {
1010         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1011
1012         strcpy(cap->driver, "cx23885");
1013         strlcpy(cap->card, cx23885_boards[dev->board].name,
1014                 sizeof(cap->card));
1015         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1016         cap->version = CX23885_VERSION_CODE;
1017         cap->capabilities =
1018                 V4L2_CAP_VIDEO_CAPTURE |
1019                 V4L2_CAP_READWRITE     |
1020                 V4L2_CAP_STREAMING     |
1021                 V4L2_CAP_VBI_CAPTURE;
1022         if (UNSET != dev->tuner_type)
1023                 cap->capabilities |= V4L2_CAP_TUNER;
1024         return 0;
1025 }
1026
1027 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1028         struct v4l2_fmtdesc *f)
1029 {
1030         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1031                 return -EINVAL;
1032
1033         strlcpy(f->description, formats[f->index].name,
1034                 sizeof(f->description));
1035         f->pixelformat = formats[f->index].fourcc;
1036
1037         return 0;
1038 }
1039
1040 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1041 static int vidiocgmbuf(struct file *file, void *priv,
1042         struct video_mbuf *mbuf)
1043 {
1044         struct cx23885_fh *fh = priv;
1045         struct videobuf_queue *q;
1046         struct v4l2_requestbuffers req;
1047         unsigned int i;
1048         int err;
1049
1050         q = get_queue(fh);
1051         memset(&req, 0, sizeof(req));
1052         req.type   = q->type;
1053         req.count  = 8;
1054         req.memory = V4L2_MEMORY_MMAP;
1055         err = videobuf_reqbufs(q, &req);
1056         if (err < 0)
1057                 return err;
1058
1059         mbuf->frames = req.count;
1060         mbuf->size   = 0;
1061         for (i = 0; i < mbuf->frames; i++) {
1062                 mbuf->offsets[i]  = q->bufs[i]->boff;
1063                 mbuf->size       += q->bufs[i]->bsize;
1064         }
1065         return 0;
1066 }
1067 #endif
1068
1069 static int vidioc_reqbufs(struct file *file, void *priv,
1070         struct v4l2_requestbuffers *p)
1071 {
1072         struct cx23885_fh *fh = priv;
1073         return videobuf_reqbufs(get_queue(fh), p);
1074 }
1075
1076 static int vidioc_querybuf(struct file *file, void *priv,
1077         struct v4l2_buffer *p)
1078 {
1079         struct cx23885_fh *fh = priv;
1080         return videobuf_querybuf(get_queue(fh), p);
1081 }
1082
1083 static int vidioc_qbuf(struct file *file, void *priv,
1084         struct v4l2_buffer *p)
1085 {
1086         struct cx23885_fh *fh = priv;
1087         return videobuf_qbuf(get_queue(fh), p);
1088 }
1089
1090 static int vidioc_dqbuf(struct file *file, void *priv,
1091         struct v4l2_buffer *p)
1092 {
1093         struct cx23885_fh *fh = priv;
1094         return videobuf_dqbuf(get_queue(fh), p,
1095                                 file->f_flags & O_NONBLOCK);
1096 }
1097
1098 static int vidioc_streamon(struct file *file, void *priv,
1099         enum v4l2_buf_type i)
1100 {
1101         struct cx23885_fh *fh = priv;
1102         struct cx23885_dev *dev = fh->dev;
1103         dprintk(1, "%s()\n", __func__);
1104
1105         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1106                 return -EINVAL;
1107         if (unlikely(i != fh->type))
1108                 return -EINVAL;
1109
1110         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1111                 return -EBUSY;
1112         return videobuf_streamon(get_queue(fh));
1113 }
1114
1115 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1116 {
1117         struct cx23885_fh *fh = priv;
1118         struct cx23885_dev *dev = fh->dev;
1119         int err, res;
1120         dprintk(1, "%s()\n", __func__);
1121
1122         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1123                 return -EINVAL;
1124         if (i != fh->type)
1125                 return -EINVAL;
1126
1127         res = get_resource(fh);
1128         err = videobuf_streamoff(get_queue(fh));
1129         if (err < 0)
1130                 return err;
1131         res_free(dev, fh, res);
1132         return 0;
1133 }
1134
1135 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1136 {
1137         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1138         dprintk(1, "%s()\n", __func__);
1139
1140         mutex_lock(&dev->lock);
1141         cx23885_set_tvnorm(dev, *tvnorms);
1142         mutex_unlock(&dev->lock);
1143
1144         return 0;
1145 }
1146
1147 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1148 {
1149         static const char *iname[] = {
1150                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1151                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1152                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1153                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1154                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1155                 [CX23885_VMUX_COMPONENT]  = "Component",
1156                 [CX23885_VMUX_TELEVISION] = "Television",
1157                 [CX23885_VMUX_CABLE]      = "Cable TV",
1158                 [CX23885_VMUX_DVB]        = "DVB",
1159                 [CX23885_VMUX_DEBUG]      = "for debug only",
1160         };
1161         unsigned int n;
1162         dprintk(1, "%s()\n", __func__);
1163
1164         n = i->index;
1165         if (n >= 4)
1166                 return -EINVAL;
1167
1168         if (0 == INPUT(n)->type)
1169                 return -EINVAL;
1170
1171         memset(i, 0, sizeof(*i));
1172         i->index = n;
1173         i->type  = V4L2_INPUT_TYPE_CAMERA;
1174         strcpy(i->name, iname[INPUT(n)->type]);
1175         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1176                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1177                 i->type = V4L2_INPUT_TYPE_TUNER;
1178                 i->std = CX23885_NORMS;
1179         return 0;
1180 }
1181
1182 static int vidioc_enum_input(struct file *file, void *priv,
1183                                 struct v4l2_input *i)
1184 {
1185         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1186         dprintk(1, "%s()\n", __func__);
1187         return cx23885_enum_input(dev, i);
1188 }
1189
1190 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1191 {
1192         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1193
1194         *i = dev->input;
1195         dprintk(1, "%s() returns %d\n", __func__, *i);
1196         return 0;
1197 }
1198
1199 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1200 {
1201         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1202
1203         dprintk(1, "%s(%d)\n", __func__, i);
1204
1205         if (i >= 4) {
1206                 dprintk(1, "%s() -EINVAL\n", __func__);
1207                 return -EINVAL;
1208         }
1209
1210         mutex_lock(&dev->lock);
1211         cx23885_video_mux(dev, i);
1212         mutex_unlock(&dev->lock);
1213         return 0;
1214 }
1215
1216 static int vidioc_queryctrl(struct file *file, void *priv,
1217                                 struct v4l2_queryctrl *qctrl)
1218 {
1219         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1220         if (unlikely(qctrl->id == 0))
1221                 return -EINVAL;
1222         return cx23885_ctrl_query(qctrl);
1223 }
1224
1225 static int vidioc_g_ctrl(struct file *file, void *priv,
1226                                 struct v4l2_control *ctl)
1227 {
1228         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1229
1230         return cx23885_get_control(dev, ctl);
1231 }
1232
1233 static int vidioc_s_ctrl(struct file *file, void *priv,
1234                                 struct v4l2_control *ctl)
1235 {
1236         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1237
1238         return cx23885_set_control(dev, ctl);
1239 }
1240
1241 static int vidioc_g_tuner(struct file *file, void *priv,
1242                                 struct v4l2_tuner *t)
1243 {
1244         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1245
1246         if (unlikely(UNSET == dev->tuner_type))
1247                 return -EINVAL;
1248         if (0 != t->index)
1249                 return -EINVAL;
1250
1251         strcpy(t->name, "Television");
1252         t->type       = V4L2_TUNER_ANALOG_TV;
1253         t->capability = V4L2_TUNER_CAP_NORM;
1254         t->rangehigh  = 0xffffffffUL;
1255         t->signal = 0xffff ; /* LOCKED */
1256         return 0;
1257 }
1258
1259 static int vidioc_s_tuner(struct file *file, void *priv,
1260                                 struct v4l2_tuner *t)
1261 {
1262         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1263
1264         if (UNSET == dev->tuner_type)
1265                 return -EINVAL;
1266         if (0 != t->index)
1267                 return -EINVAL;
1268         return 0;
1269 }
1270
1271 static int vidioc_g_frequency(struct file *file, void *priv,
1272                                 struct v4l2_frequency *f)
1273 {
1274         struct cx23885_fh *fh = priv;
1275         struct cx23885_dev *dev = fh->dev;
1276
1277         if (unlikely(UNSET == dev->tuner_type))
1278                 return -EINVAL;
1279
1280         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1281         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1282         f->frequency = dev->freq;
1283
1284         call_all(dev, tuner, g_frequency, f);
1285
1286         return 0;
1287 }
1288
1289 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1290 {
1291         if (unlikely(UNSET == dev->tuner_type))
1292                 return -EINVAL;
1293         if (unlikely(f->tuner != 0))
1294                 return -EINVAL;
1295
1296         mutex_lock(&dev->lock);
1297         dev->freq = f->frequency;
1298
1299         call_all(dev, tuner, s_frequency, f);
1300
1301         /* When changing channels it is required to reset TVAUDIO */
1302         msleep(10);
1303
1304         mutex_unlock(&dev->lock);
1305
1306         return 0;
1307 }
1308
1309 static int vidioc_s_frequency(struct file *file, void *priv,
1310                                 struct v4l2_frequency *f)
1311 {
1312         struct cx23885_fh *fh = priv;
1313         struct cx23885_dev *dev = fh->dev;
1314
1315         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1316                 return -EINVAL;
1317         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1318                 return -EINVAL;
1319
1320         return
1321                 cx23885_set_freq(dev, f);
1322 }
1323
1324 /* ----------------------------------------------------------- */
1325
1326 static void cx23885_vid_timeout(unsigned long data)
1327 {
1328         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1329         struct cx23885_dmaqueue *q = &dev->vidq;
1330         struct cx23885_buffer *buf;
1331         unsigned long flags;
1332
1333         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1334
1335         cx_clear(VID_A_DMA_CTL, 0x11);
1336
1337         spin_lock_irqsave(&dev->slock, flags);
1338         while (!list_empty(&q->active)) {
1339                 buf = list_entry(q->active.next,
1340                         struct cx23885_buffer, vb.queue);
1341                 list_del(&buf->vb.queue);
1342                 buf->vb.state = VIDEOBUF_ERROR;
1343                 wake_up(&buf->vb.done);
1344                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1345                         dev->name, buf, buf->vb.i,
1346                         (unsigned long)buf->risc.dma);
1347         }
1348         cx23885_restart_video_queue(dev, q);
1349         spin_unlock_irqrestore(&dev->slock, flags);
1350 }
1351
1352 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1353 {
1354         u32 mask, count;
1355         int handled = 0;
1356
1357         mask   = cx_read(VID_A_INT_MSK);
1358         if (0 == (status & mask))
1359                 return handled;
1360         cx_write(VID_A_INT_STAT, status);
1361
1362         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1363         /* risc op code error */
1364         if (status & (1 << 16)) {
1365                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1366                         dev->name);
1367                 cx_clear(VID_A_DMA_CTL, 0x11);
1368                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1369         }
1370
1371         /* risc1 y */
1372         if (status & 0x01) {
1373                 spin_lock(&dev->slock);
1374                 count = cx_read(VID_A_GPCNT);
1375                 cx23885_video_wakeup(dev, &dev->vidq, count);
1376                 spin_unlock(&dev->slock);
1377                 handled++;
1378         }
1379         /* risc2 y */
1380         if (status & 0x10) {
1381                 dprintk(2, "stopper video\n");
1382                 spin_lock(&dev->slock);
1383                 cx23885_restart_video_queue(dev, &dev->vidq);
1384                 spin_unlock(&dev->slock);
1385                 handled++;
1386         }
1387
1388         return handled;
1389 }
1390
1391 /* ----------------------------------------------------------- */
1392 /* exported stuff                                              */
1393
1394 static const struct v4l2_file_operations video_fops = {
1395         .owner         = THIS_MODULE,
1396         .open          = video_open,
1397         .release       = video_release,
1398         .read          = video_read,
1399         .poll          = video_poll,
1400         .mmap          = video_mmap,
1401         .ioctl         = video_ioctl2,
1402 };
1403
1404 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1405         .vidioc_querycap      = vidioc_querycap,
1406         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1407         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1408         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1409         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1410         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1411         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1412         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1413         .vidioc_reqbufs       = vidioc_reqbufs,
1414         .vidioc_querybuf      = vidioc_querybuf,
1415         .vidioc_qbuf          = vidioc_qbuf,
1416         .vidioc_dqbuf         = vidioc_dqbuf,
1417         .vidioc_s_std         = vidioc_s_std,
1418         .vidioc_enum_input    = vidioc_enum_input,
1419         .vidioc_g_input       = vidioc_g_input,
1420         .vidioc_s_input       = vidioc_s_input,
1421         .vidioc_queryctrl     = vidioc_queryctrl,
1422         .vidioc_g_ctrl        = vidioc_g_ctrl,
1423         .vidioc_s_ctrl        = vidioc_s_ctrl,
1424         .vidioc_streamon      = vidioc_streamon,
1425         .vidioc_streamoff     = vidioc_streamoff,
1426 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1427         .vidiocgmbuf          = vidiocgmbuf,
1428 #endif
1429         .vidioc_g_tuner       = vidioc_g_tuner,
1430         .vidioc_s_tuner       = vidioc_s_tuner,
1431         .vidioc_g_frequency   = vidioc_g_frequency,
1432         .vidioc_s_frequency   = vidioc_s_frequency,
1433         .vidioc_g_chip_ident  = cx23885_g_chip_ident,
1434 #ifdef CONFIG_VIDEO_ADV_DEBUG
1435         .vidioc_g_register    = cx23885_g_register,
1436         .vidioc_s_register    = cx23885_s_register,
1437 #endif
1438 };
1439
1440 static struct video_device cx23885_vbi_template;
1441 static struct video_device cx23885_video_template = {
1442         .name                 = "cx23885-video",
1443         .fops                 = &video_fops,
1444         .minor                = -1,
1445         .ioctl_ops            = &video_ioctl_ops,
1446         .tvnorms              = CX23885_NORMS,
1447         .current_norm         = V4L2_STD_NTSC_M,
1448 };
1449
1450 static const struct v4l2_file_operations radio_fops = {
1451         .owner         = THIS_MODULE,
1452         .open          = video_open,
1453         .release       = video_release,
1454         .ioctl         = video_ioctl2,
1455 };
1456
1457
1458 void cx23885_video_unregister(struct cx23885_dev *dev)
1459 {
1460         dprintk(1, "%s()\n", __func__);
1461         cx_clear(PCI_INT_MSK, 1);
1462
1463         if (dev->video_dev) {
1464                 if (video_is_registered(dev->video_dev))
1465                         video_unregister_device(dev->video_dev);
1466                 else
1467                         video_device_release(dev->video_dev);
1468                 dev->video_dev = NULL;
1469
1470                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1471         }
1472 }
1473
1474 int cx23885_video_register(struct cx23885_dev *dev)
1475 {
1476         int err;
1477
1478         dprintk(1, "%s()\n", __func__);
1479         spin_lock_init(&dev->slock);
1480
1481         /* Initialize VBI template */
1482         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1483                 sizeof(cx23885_vbi_template));
1484         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1485
1486         dev->tvnorm = cx23885_video_template.current_norm;
1487
1488         /* init video dma queues */
1489         INIT_LIST_HEAD(&dev->vidq.active);
1490         INIT_LIST_HEAD(&dev->vidq.queued);
1491         dev->vidq.timeout.function = cx23885_vid_timeout;
1492         dev->vidq.timeout.data = (unsigned long)dev;
1493         init_timer(&dev->vidq.timeout);
1494         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1495                 VID_A_DMA_CTL, 0x11, 0x00);
1496
1497         /* Don't enable VBI yet */
1498         cx_set(PCI_INT_MSK, 1);
1499
1500         if (TUNER_ABSENT != dev->tuner_type) {
1501                 struct v4l2_subdev *sd = NULL;
1502
1503                 if (dev->tuner_addr)
1504                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1505                                 &dev->i2c_bus[1].i2c_adap,
1506                                 "tuner", "tuner", dev->tuner_addr, NULL);
1507                 else
1508                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1509                                 &dev->i2c_bus[1].i2c_adap,
1510                                 "tuner", "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1511                 if (sd) {
1512                         struct tuner_setup tun_setup;
1513
1514                         memset(&tun_setup, 0, sizeof(tun_setup));
1515                         tun_setup.mode_mask = T_ANALOG_TV;
1516                         tun_setup.type = dev->tuner_type;
1517                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1518                         tun_setup.tuner_callback = cx23885_tuner_callback;
1519
1520                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1521                 }
1522         }
1523
1524
1525         /* register v4l devices */
1526         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1527                 &cx23885_video_template, "video");
1528         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1529                                     video_nr[dev->nr]);
1530         if (err < 0) {
1531                 printk(KERN_INFO "%s: can't register video device\n",
1532                         dev->name);
1533                 goto fail_unreg;
1534         }
1535         printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
1536                dev->name, video_device_node_name(dev->video_dev));
1537         /* initial device configuration */
1538         mutex_lock(&dev->lock);
1539         cx23885_set_tvnorm(dev, dev->tvnorm);
1540         init_controls(dev);
1541         cx23885_video_mux(dev, 0);
1542         mutex_unlock(&dev->lock);
1543
1544         return 0;
1545
1546 fail_unreg:
1547         cx23885_video_unregister(dev);
1548         return err;
1549 }
1550