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 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->v4l2_dev = &dev->v4l2_dev;
 322         vfd->release = video_device_release;
 323         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 324                  dev->name, type, cx23885_boards[dev->board].name);
 325         video_set_drvdata(vfd, dev);
 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         cx23885_irq_add_enable(dev, 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         if (*size * *count > vid_limit * 1024 * 1024)
 517                 *count = (vid_limit * 1024 * 1024) / *size;
 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         struct video_device *vdev = video_devdata(file);
 720         struct cx23885_dev *dev = video_drvdata(file);
 721         struct cx23885_fh *fh;
 722         enum v4l2_buf_type type = 0;
 723         int radio = 0;
 724
 725         switch (vdev->vfl_type) {
 726         case VFL_TYPE_GRABBER:
 727                 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 728                 break;
 729         case VFL_TYPE_VBI:
 730                 type = V4L2_BUF_TYPE_VBI_CAPTURE;
 731                 break;
 732         case VFL_TYPE_RADIO:
 733                 radio = 1;
 734                 break;
 735         }
 736
 737         dprintk(1, "open dev=%s radio=%d type=%s\n",
 738                 video_device_node_name(vdev), radio, v4l2_type_names[type]);
 739
 740         /* allocate + initialize per filehandle data */
 741         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 742         if (NULL == fh)
 743                 return -ENOMEM;
 744
 745         file->private_data = fh;
 746         fh->dev      = dev;
 747         fh->radio    = radio;
 748         fh->type     = type;
 749         fh->width    = 320;
 750         fh->height   = 240;
 751         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 752
 753         videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
 754                             &dev->pci->dev, &dev->slock,
 755                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 756                             V4L2_FIELD_INTERLACED,
 757                             sizeof(struct cx23885_buffer),
 758                             fh, NULL);
 759
 760         dprintk(1, "post videobuf_queue_init()\n");
 761
 762         return 0;
 763 }
 764
 765 static ssize_t video_read(struct file *file, char __user *data,
 766         size_t count, loff_t *ppos)
 767 {
 768         struct cx23885_fh *fh = file->private_data;
 769
 770         switch (fh->type) {
 771         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 772                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 773                         return -EBUSY;
 774                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 775                                          file->f_flags & O_NONBLOCK);
 776         case V4L2_BUF_TYPE_VBI_CAPTURE:
 777                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 778                         return -EBUSY;
 779                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 780                                             file->f_flags & O_NONBLOCK);
 781         default:
 782                 BUG();
 783                 return 0;
 784         }
 785 }
 786
 787 static unsigned int video_poll(struct file *file,
 788         struct poll_table_struct *wait)
 789 {
 790         struct cx23885_fh *fh = file->private_data;
 791         struct cx23885_buffer *buf;
 792         unsigned int rc = POLLERR;
 793
 794         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 795                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 796                         return POLLERR;
 797                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 798         }
 799
 800         mutex_lock(&fh->vidq.vb_lock);
 801         if (res_check(fh, RESOURCE_VIDEO)) {
 802                 /* streaming capture */
 803                 if (list_empty(&fh->vidq.stream))
 804                         goto done;
 805                 buf = list_entry(fh->vidq.stream.next,
 806                         struct cx23885_buffer, vb.stream);
 807         } else {
 808                 /* read() capture */
 809                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 810                 if (NULL == buf)
 811                         goto done;
 812         }
 813         poll_wait(file, &buf->vb.done, wait);
 814         if (buf->vb.state == VIDEOBUF_DONE ||
 815             buf->vb.state == VIDEOBUF_ERROR)
 816                 rc =  POLLIN|POLLRDNORM;
 817         else
 818                 rc = 0;
 819 done:
 820         mutex_unlock(&fh->vidq.vb_lock);
 821         return rc;
 822 }
 823
 824 static int video_release(struct file *file)
 825 {
 826         struct cx23885_fh *fh = file->private_data;
 827         struct cx23885_dev *dev = fh->dev;
 828
 829         /* turn off overlay */
 830         if (res_check(fh, RESOURCE_OVERLAY)) {
 831                 /* FIXME */
 832                 res_free(dev, fh, RESOURCE_OVERLAY);
 833         }
 834
 835         /* stop video capture */
 836         if (res_check(fh, RESOURCE_VIDEO)) {
 837                 videobuf_queue_cancel(&fh->vidq);
 838                 res_free(dev, fh, RESOURCE_VIDEO);
 839         }
 840         if (fh->vidq.read_buf) {
 841                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 842                 kfree(fh->vidq.read_buf);
 843         }
 844
 845         /* stop vbi capture */
 846         if (res_check(fh, RESOURCE_VBI)) {
 847                 if (fh->vbiq.streaming)
 848                         videobuf_streamoff(&fh->vbiq);
 849                 if (fh->vbiq.reading)
 850                         videobuf_read_stop(&fh->vbiq);
 851                 res_free(dev, fh, RESOURCE_VBI);
 852         }
 853
 854         videobuf_mmap_free(&fh->vidq);
 855         file->private_data = NULL;
 856         kfree(fh);
 857
 858         /* We are not putting the tuner to sleep here on exit, because
 859          * we want to use the mpeg encoder in another session to capture
 860          * tuner video. Closing this will result in no video to the encoder.
 861          */
 862
 863         return 0;
 864 }
 865
 866 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 867 {
 868         struct cx23885_fh *fh = file->private_data;
 869
 870         return videobuf_mmap_mapper(get_queue(fh), vma);
 871 }
 872
 873 /* ------------------------------------------------------------------ */
 874 /* VIDEO CTRL IOCTLS                                                  */
 875
 876 static int cx23885_get_control(struct cx23885_dev *dev,
 877         struct v4l2_control *ctl)
 878 {
 879         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __func__);
 880         call_all(dev, core, g_ctrl, ctl);
 881         return 0;
 882 }
 883
 884 static int cx23885_set_control(struct cx23885_dev *dev,
 885         struct v4l2_control *ctl)
 886 {
 887         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 888                 " (disabled - no action)\n", __func__);
 889         return 0;
 890 }
 891
 892 static void init_controls(struct cx23885_dev *dev)
 893 {
 894         struct v4l2_control ctrl;
 895         int i;
 896
 897         for (i = 0; i < CX23885_CTLS; i++) {
 898                 ctrl.id = cx23885_ctls[i].v.id;
 899                 ctrl.value = cx23885_ctls[i].v.default_value;
 900
 901                 cx23885_set_control(dev, &ctrl);
 902         }
 903 }
 904
 905 /* ------------------------------------------------------------------ */
 906 /* VIDEO IOCTLS                                                       */
 907
 908 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 909         struct v4l2_format *f)
 910 {
 911         struct cx23885_fh *fh   = priv;
 912
 913         f->fmt.pix.width        = fh->width;
 914         f->fmt.pix.height       = fh->height;
 915         f->fmt.pix.field        = fh->vidq.field;
 916         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 917         f->fmt.pix.bytesperline =
 918                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 919         f->fmt.pix.sizeimage =
 920                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 921
 922         return 0;
 923 }
 924
 925 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 926         struct v4l2_format *f)
 927 {
 928         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 929         struct cx23885_fmt *fmt;
 930         enum v4l2_field   field;
 931         unsigned int      maxw, maxh;
 932
 933         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 934         if (NULL == fmt)
 935                 return -EINVAL;
 936
 937         field = f->fmt.pix.field;
 938         maxw  = norm_maxw(dev->tvnorm);
 939         maxh  = norm_maxh(dev->tvnorm);
 940
 941         if (V4L2_FIELD_ANY == field) {
 942                 field = (f->fmt.pix.height > maxh/2)
 943                         ? V4L2_FIELD_INTERLACED
 944                         : V4L2_FIELD_BOTTOM;
 945         }
 946
 947         switch (field) {
 948         case V4L2_FIELD_TOP:
 949         case V4L2_FIELD_BOTTOM:
 950                 maxh = maxh / 2;
 951                 break;
 952         case V4L2_FIELD_INTERLACED:
 953                 break;
 954         default:
 955                 return -EINVAL;
 956         }
 957
 958         f->fmt.pix.field = field;
 959         v4l_bound_align_image(&f->fmt.pix.width, 48, maxw, 2,
 960                               &f->fmt.pix.height, 32, maxh, 0, 0);
 961         f->fmt.pix.bytesperline =
 962                 (f->fmt.pix.width * fmt->depth) >> 3;
 963         f->fmt.pix.sizeimage =
 964                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 965
 966         return 0;
 967 }
 968
 969 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 970         struct v4l2_format *f)
 971 {
 972         struct cx23885_fh *fh = priv;
 973         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 974         struct v4l2_mbus_framefmt mbus_fmt;
 975         int err;
 976
 977         dprintk(2, "%s()\n", __func__);
 978         err = vidioc_try_fmt_vid_cap(file, priv, f);
 979
 980         if (0 != err)
 981                 return err;
 982         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
 983         fh->width      = f->fmt.pix.width;
 984         fh->height     = f->fmt.pix.height;
 985         fh->vidq.field = f->fmt.pix.field;
 986         dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
 987                 fh->width, fh->height, fh->vidq.field);
 988         v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
 989         call_all(dev, video, s_mbus_fmt, &mbus_fmt);
 990         v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
 991         return 0;
 992 }
 993
 994 static int vidioc_querycap(struct file *file, void  *priv,
 995         struct v4l2_capability *cap)
 996 {
 997         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 998
 999         strcpy(cap->driver, "cx23885");
1000         strlcpy(cap->card, cx23885_boards[dev->board].name,
1001                 sizeof(cap->card));
1002         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1003         cap->capabilities =
1004                 V4L2_CAP_VIDEO_CAPTURE |
1005                 V4L2_CAP_READWRITE     |
1006                 V4L2_CAP_STREAMING     |
1007                 V4L2_CAP_VBI_CAPTURE;
1008         if (UNSET != dev->tuner_type)
1009                 cap->capabilities |= V4L2_CAP_TUNER;
1010         return 0;
1011 }
1012
1013 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
1014         struct v4l2_fmtdesc *f)
1015 {
1016         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1017                 return -EINVAL;
1018
1019         strlcpy(f->description, formats[f->index].name,
1020                 sizeof(f->description));
1021         f->pixelformat = formats[f->index].fourcc;
1022
1023         return 0;
1024 }
1025
1026 static int vidioc_reqbufs(struct file *file, void *priv,
1027         struct v4l2_requestbuffers *p)
1028 {
1029         struct cx23885_fh *fh = priv;
1030         return videobuf_reqbufs(get_queue(fh), p);
1031 }
1032
1033 static int vidioc_querybuf(struct file *file, void *priv,
1034         struct v4l2_buffer *p)
1035 {
1036         struct cx23885_fh *fh = priv;
1037         return videobuf_querybuf(get_queue(fh), p);
1038 }
1039
1040 static int vidioc_qbuf(struct file *file, void *priv,
1041         struct v4l2_buffer *p)
1042 {
1043         struct cx23885_fh *fh = priv;
1044         return videobuf_qbuf(get_queue(fh), p);
1045 }
1046
1047 static int vidioc_dqbuf(struct file *file, void *priv,
1048         struct v4l2_buffer *p)
1049 {
1050         struct cx23885_fh *fh = priv;
1051         return videobuf_dqbuf(get_queue(fh), p,
1052                                 file->f_flags & O_NONBLOCK);
1053 }
1054
1055 static int vidioc_streamon(struct file *file, void *priv,
1056         enum v4l2_buf_type i)
1057 {
1058         struct cx23885_fh *fh = priv;
1059         struct cx23885_dev *dev = fh->dev;
1060         dprintk(1, "%s()\n", __func__);
1061
1062         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1063                 return -EINVAL;
1064         if (unlikely(i != fh->type))
1065                 return -EINVAL;
1066
1067         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1068                 return -EBUSY;
1069         return videobuf_streamon(get_queue(fh));
1070 }
1071
1072 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1073 {
1074         struct cx23885_fh *fh = priv;
1075         struct cx23885_dev *dev = fh->dev;
1076         int err, res;
1077         dprintk(1, "%s()\n", __func__);
1078
1079         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1080                 return -EINVAL;
1081         if (i != fh->type)
1082                 return -EINVAL;
1083
1084         res = get_resource(fh);
1085         err = videobuf_streamoff(get_queue(fh));
1086         if (err < 0)
1087                 return err;
1088         res_free(dev, fh, res);
1089         return 0;
1090 }
1091
1092 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1093 {
1094         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1095         dprintk(1, "%s()\n", __func__);
1096
1097         mutex_lock(&dev->lock);
1098         cx23885_set_tvnorm(dev, *tvnorms);
1099         mutex_unlock(&dev->lock);
1100
1101         return 0;
1102 }
1103
1104 static int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1105 {
1106         static const char *iname[] = {
1107                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1108                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1109                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1110                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1111                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1112                 [CX23885_VMUX_COMPONENT]  = "Component",
1113                 [CX23885_VMUX_TELEVISION] = "Television",
1114                 [CX23885_VMUX_CABLE]      = "Cable TV",
1115                 [CX23885_VMUX_DVB]        = "DVB",
1116                 [CX23885_VMUX_DEBUG]      = "for debug only",
1117         };
1118         unsigned int n;
1119         dprintk(1, "%s()\n", __func__);
1120
1121         n = i->index;
1122         if (n >= 4)
1123                 return -EINVAL;
1124
1125         if (0 == INPUT(n)->type)
1126                 return -EINVAL;
1127
1128         i->index = n;
1129         i->type  = V4L2_INPUT_TYPE_CAMERA;
1130         strcpy(i->name, iname[INPUT(n)->type]);
1131         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1132                 (CX23885_VMUX_CABLE == INPUT(n)->type)) {
1133                 i->type = V4L2_INPUT_TYPE_TUNER;
1134                 i->std = CX23885_NORMS;
1135         }
1136         return 0;
1137 }
1138
1139 static int vidioc_enum_input(struct file *file, void *priv,
1140                                 struct v4l2_input *i)
1141 {
1142         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1143         dprintk(1, "%s()\n", __func__);
1144         return cx23885_enum_input(dev, i);
1145 }
1146
1147 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1148 {
1149         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1150
1151         *i = dev->input;
1152         dprintk(1, "%s() returns %d\n", __func__, *i);
1153         return 0;
1154 }
1155
1156 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1157 {
1158         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1159
1160         dprintk(1, "%s(%d)\n", __func__, i);
1161
1162         if (i >= 4) {
1163                 dprintk(1, "%s() -EINVAL\n", __func__);
1164                 return -EINVAL;
1165         }
1166
1167         mutex_lock(&dev->lock);
1168         cx23885_video_mux(dev, i);
1169         mutex_unlock(&dev->lock);
1170         return 0;
1171 }
1172
1173 static int vidioc_log_status(struct file *file, void *priv)
1174 {
1175         struct cx23885_fh  *fh  = priv;
1176         struct cx23885_dev *dev = fh->dev;
1177
1178         printk(KERN_INFO
1179                 "%s/0: ============  START LOG STATUS  ============\n",
1180                dev->name);
1181         call_all(dev, core, log_status);
1182         printk(KERN_INFO
1183                 "%s/0: =============  END LOG STATUS  =============\n",
1184                dev->name);
1185         return 0;
1186 }
1187
1188 static int vidioc_queryctrl(struct file *file, void *priv,
1189                                 struct v4l2_queryctrl *qctrl)
1190 {
1191         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1192         if (unlikely(qctrl->id == 0))
1193                 return -EINVAL;
1194         return cx23885_ctrl_query(qctrl);
1195 }
1196
1197 static int vidioc_g_ctrl(struct file *file, void *priv,
1198                                 struct v4l2_control *ctl)
1199 {
1200         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1201
1202         return cx23885_get_control(dev, ctl);
1203 }
1204
1205 static int vidioc_s_ctrl(struct file *file, void *priv,
1206                                 struct v4l2_control *ctl)
1207 {
1208         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1209
1210         return cx23885_set_control(dev, ctl);
1211 }
1212
1213 static int vidioc_g_tuner(struct file *file, void *priv,
1214                                 struct v4l2_tuner *t)
1215 {
1216         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1217
1218         if (unlikely(UNSET == dev->tuner_type))
1219                 return -EINVAL;
1220         if (0 != t->index)
1221                 return -EINVAL;
1222
1223         strcpy(t->name, "Television");
1224         t->type       = V4L2_TUNER_ANALOG_TV;
1225         t->capability = V4L2_TUNER_CAP_NORM;
1226         t->rangehigh  = 0xffffffffUL;
1227         t->signal = 0xffff ; /* LOCKED */
1228         return 0;
1229 }
1230
1231 static int vidioc_s_tuner(struct file *file, void *priv,
1232                                 struct v4l2_tuner *t)
1233 {
1234         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1235
1236         if (UNSET == dev->tuner_type)
1237                 return -EINVAL;
1238         if (0 != t->index)
1239                 return -EINVAL;
1240         return 0;
1241 }
1242
1243 static int vidioc_g_frequency(struct file *file, void *priv,
1244                                 struct v4l2_frequency *f)
1245 {
1246         struct cx23885_fh *fh = priv;
1247         struct cx23885_dev *dev = fh->dev;
1248
1249         if (unlikely(UNSET == dev->tuner_type))
1250                 return -EINVAL;
1251
1252         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1253         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1254         f->frequency = dev->freq;
1255
1256         call_all(dev, tuner, g_frequency, f);
1257
1258         return 0;
1259 }
1260
1261 static int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1262 {
1263         if (unlikely(UNSET == dev->tuner_type))
1264                 return -EINVAL;
1265         if (unlikely(f->tuner != 0))
1266                 return -EINVAL;
1267
1268         mutex_lock(&dev->lock);
1269         dev->freq = f->frequency;
1270
1271         call_all(dev, tuner, s_frequency, f);
1272
1273         /* When changing channels it is required to reset TVAUDIO */
1274         msleep(10);
1275
1276         mutex_unlock(&dev->lock);
1277
1278         return 0;
1279 }
1280
1281 static int vidioc_s_frequency(struct file *file, void *priv,
1282                                 struct v4l2_frequency *f)
1283 {
1284         struct cx23885_fh *fh = priv;
1285         struct cx23885_dev *dev = fh->dev;
1286
1287         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1288                 return -EINVAL;
1289         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1290                 return -EINVAL;
1291
1292         return
1293                 cx23885_set_freq(dev, f);
1294 }
1295
1296 /* ----------------------------------------------------------- */
1297
1298 static void cx23885_vid_timeout(unsigned long data)
1299 {
1300         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1301         struct cx23885_dmaqueue *q = &dev->vidq;
1302         struct cx23885_buffer *buf;
1303         unsigned long flags;
1304
1305         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1306
1307         cx_clear(VID_A_DMA_CTL, 0x11);
1308
1309         spin_lock_irqsave(&dev->slock, flags);
1310         while (!list_empty(&q->active)) {
1311                 buf = list_entry(q->active.next,
1312                         struct cx23885_buffer, vb.queue);
1313                 list_del(&buf->vb.queue);
1314                 buf->vb.state = VIDEOBUF_ERROR;
1315                 wake_up(&buf->vb.done);
1316                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1317                         dev->name, buf, buf->vb.i,
1318                         (unsigned long)buf->risc.dma);
1319         }
1320         cx23885_restart_video_queue(dev, q);
1321         spin_unlock_irqrestore(&dev->slock, flags);
1322 }
1323
1324 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1325 {
1326         u32 mask, count;
1327         int handled = 0;
1328
1329         mask   = cx_read(VID_A_INT_MSK);
1330         if (0 == (status & mask))
1331                 return handled;
1332         cx_write(VID_A_INT_STAT, status);
1333
1334         dprintk(2, "%s() status = 0x%08x\n", __func__, status);
1335         /* risc op code error */
1336         if (status & (1 << 16)) {
1337                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1338                         dev->name);
1339                 cx_clear(VID_A_DMA_CTL, 0x11);
1340                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1341         }
1342
1343         /* risc1 y */
1344         if (status & 0x01) {
1345                 spin_lock(&dev->slock);
1346                 count = cx_read(VID_A_GPCNT);
1347                 cx23885_video_wakeup(dev, &dev->vidq, count);
1348                 spin_unlock(&dev->slock);
1349                 handled++;
1350         }
1351         /* risc2 y */
1352         if (status & 0x10) {
1353                 dprintk(2, "stopper video\n");
1354                 spin_lock(&dev->slock);
1355                 cx23885_restart_video_queue(dev, &dev->vidq);
1356                 spin_unlock(&dev->slock);
1357                 handled++;
1358         }
1359
1360         return handled;
1361 }
1362
1363 /* ----------------------------------------------------------- */
1364 /* exported stuff                                              */
1365
1366 static const struct v4l2_file_operations video_fops = {
1367         .owner         = THIS_MODULE,
1368         .open          = video_open,
1369         .release       = video_release,
1370         .read          = video_read,
1371         .poll          = video_poll,
1372         .mmap          = video_mmap,
1373         .ioctl         = video_ioctl2,
1374 };
1375
1376 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1377         .vidioc_querycap      = vidioc_querycap,
1378         .vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
1379         .vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
1380         .vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
1381         .vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
1382         .vidioc_g_fmt_vbi_cap     = cx23885_vbi_fmt,
1383         .vidioc_try_fmt_vbi_cap   = cx23885_vbi_fmt,
1384         .vidioc_s_fmt_vbi_cap     = cx23885_vbi_fmt,
1385         .vidioc_reqbufs       = vidioc_reqbufs,
1386         .vidioc_querybuf      = vidioc_querybuf,
1387         .vidioc_qbuf          = vidioc_qbuf,
1388         .vidioc_dqbuf         = vidioc_dqbuf,
1389         .vidioc_s_std         = vidioc_s_std,
1390         .vidioc_enum_input    = vidioc_enum_input,
1391         .vidioc_g_input       = vidioc_g_input,
1392         .vidioc_s_input       = vidioc_s_input,
1393         .vidioc_log_status    = vidioc_log_status,
1394         .vidioc_queryctrl     = vidioc_queryctrl,
1395         .vidioc_g_ctrl        = vidioc_g_ctrl,
1396         .vidioc_s_ctrl        = vidioc_s_ctrl,
1397         .vidioc_streamon      = vidioc_streamon,
1398         .vidioc_streamoff     = vidioc_streamoff,
1399         .vidioc_g_tuner       = vidioc_g_tuner,
1400         .vidioc_s_tuner       = vidioc_s_tuner,
1401         .vidioc_g_frequency   = vidioc_g_frequency,
1402         .vidioc_s_frequency   = vidioc_s_frequency,
1403         .vidioc_g_chip_ident  = cx23885_g_chip_ident,
1404 #ifdef CONFIG_VIDEO_ADV_DEBUG
1405         .vidioc_g_register    = cx23885_g_register,
1406         .vidioc_s_register    = cx23885_s_register,
1407 #endif
1408 };
1409
1410 static struct video_device cx23885_vbi_template;
1411 static struct video_device cx23885_video_template = {
1412         .name                 = "cx23885-video",
1413         .fops                 = &video_fops,
1414         .ioctl_ops            = &video_ioctl_ops,
1415         .tvnorms              = CX23885_NORMS,
1416         .current_norm         = V4L2_STD_NTSC_M,
1417 };
1418
1419 static const struct v4l2_file_operations radio_fops = {
1420         .owner         = THIS_MODULE,
1421         .open          = video_open,
1422         .release       = video_release,
1423         .ioctl         = video_ioctl2,
1424 };
1425
1426
1427 void cx23885_video_unregister(struct cx23885_dev *dev)
1428 {
1429         dprintk(1, "%s()\n", __func__);
1430         cx23885_irq_remove(dev, 0x01);
1431
1432         if (dev->video_dev) {
1433                 if (video_is_registered(dev->video_dev))
1434                         video_unregister_device(dev->video_dev);
1435                 else
1436                         video_device_release(dev->video_dev);
1437                 dev->video_dev = NULL;
1438
1439                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1440         }
1441 }
1442
1443 int cx23885_video_register(struct cx23885_dev *dev)
1444 {
1445         int err;
1446
1447         dprintk(1, "%s()\n", __func__);
1448         spin_lock_init(&dev->slock);
1449
1450         /* Initialize VBI template */
1451         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1452                 sizeof(cx23885_vbi_template));
1453         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1454
1455         dev->tvnorm = cx23885_video_template.current_norm;
1456
1457         /* init video dma queues */
1458         INIT_LIST_HEAD(&dev->vidq.active);
1459         INIT_LIST_HEAD(&dev->vidq.queued);
1460         dev->vidq.timeout.function = cx23885_vid_timeout;
1461         dev->vidq.timeout.data = (unsigned long)dev;
1462         init_timer(&dev->vidq.timeout);
1463         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1464                 VID_A_DMA_CTL, 0x11, 0x00);
1465
1466         /* Don't enable VBI yet */
1467
1468         cx23885_irq_add_enable(dev, 0x01);
1469
1470         if ((TUNER_ABSENT != dev->tuner_type) &&
1471                         ((dev->tuner_bus == 0) || (dev->tuner_bus == 1))) {
1472                 struct v4l2_subdev *sd = NULL;
1473
1474                 if (dev->tuner_addr)
1475                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1476                                 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1477                                 "tuner", dev->tuner_addr, NULL);
1478                 else
1479                         sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1480                                 &dev->i2c_bus[dev->tuner_bus].i2c_adap,
1481                                 "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_TV));
1482                 if (sd) {
1483                         struct tuner_setup tun_setup;
1484
1485                         memset(&tun_setup, 0, sizeof(tun_setup));
1486                         tun_setup.mode_mask = T_ANALOG_TV;
1487                         tun_setup.type = dev->tuner_type;
1488                         tun_setup.addr = v4l2_i2c_subdev_addr(sd);
1489                         tun_setup.tuner_callback = cx23885_tuner_callback;
1490
1491                         v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
1492
1493                         if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) {
1494                                 struct xc2028_ctrl ctrl = {
1495                                         .fname = XC2028_DEFAULT_FIRMWARE,
1496                                         .max_len = 64
1497                                 };
1498                                 struct v4l2_priv_tun_config cfg = {
1499                                         .tuner = dev->tuner_type,
1500                                         .priv = &ctrl
1501                                 };
1502                                 v4l2_subdev_call(sd, tuner, s_config, &cfg);
1503                         }
1504                 }
1505         }
1506
1507
1508         /* register v4l devices */
1509         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1510                 &cx23885_video_template, "video");
1511         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1512                                     video_nr[dev->nr]);
1513         if (err < 0) {
1514                 printk(KERN_INFO "%s: can't register video device\n",
1515                         dev->name);
1516                 goto fail_unreg;
1517         }
1518         printk(KERN_INFO "%s/0: registered device %s [v4l2]\n",
1519                dev->name, video_device_node_name(dev->video_dev));
1520         /* initial device configuration */
1521         mutex_lock(&dev->lock);
1522         cx23885_set_tvnorm(dev, dev->tvnorm);
1523         init_controls(dev);
1524         cx23885_video_mux(dev, 0);
1525         mutex_unlock(&dev->lock);
1526
1527         return 0;
1528
1529 fail_unreg:
1530         cx23885_video_unregister(dev);
1531         return err;
1532 }
1533