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   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2007 Steven Toth <stoth@hauppauge.com>
   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
  37 #ifdef CONFIG_VIDEO_V4L1_COMPAT
  38 /* Include V4L1 specific functions. Should be removed soon */
  39 #include <linux/videodev.h>
  40 #endif
  41
  42 MODULE_DESCRIPTION("v4l2 driver module for cx23885 based TV cards");
  43 MODULE_AUTHOR("Steven Toth <stoth@hauppauge.com>");
  44 MODULE_LICENSE("GPL");
  45
  46 /* ------------------------------------------------------------------ */
  47
  48 static unsigned int video_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  49 static unsigned int vbi_nr[]   = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  50 static unsigned int radio_nr[] = {[0 ... (CX23885_MAXBOARDS - 1)] = UNSET };
  51
  52 module_param_array(video_nr, int, NULL, 0444);
  53 module_param_array(vbi_nr,   int, NULL, 0444);
  54 module_param_array(radio_nr, int, NULL, 0444);
  55
  56 MODULE_PARM_DESC(video_nr, "video device numbers");
  57 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
  58 MODULE_PARM_DESC(radio_nr, "radio device numbers");
  59
  60 static unsigned int video_debug = 0;
  61 module_param(video_debug, int, 0644);
  62 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
  63
  64 static unsigned int irq_debug = 0;
  65 module_param(irq_debug, int, 0644);
  66 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
  67
  68 static unsigned int vid_limit = 16;
  69 module_param(vid_limit, int, 0644);
  70 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
  71
  72 #define dprintk(level, fmt, arg...)\
  73         if (video_debug >= level)\
  74                 printk(KERN_DEBUG "%s/0: " fmt, dev->name, ## arg)
  75
  76 /* ------------------------------------------------------------------- */
  77 /* static data                                                         */
  78
  79 #define FORMAT_FLAGS_PACKED       0x01
  80
  81 static struct cx23885_fmt formats[] = {
  82         {
  83                 .name     = "8 bpp, gray",
  84                 .fourcc   = V4L2_PIX_FMT_GREY,
  85                 .depth    = 8,
  86                 .flags    = FORMAT_FLAGS_PACKED,
  87         }, {
  88                 .name     = "15 bpp RGB, le",
  89                 .fourcc   = V4L2_PIX_FMT_RGB555,
  90                 .depth    = 16,
  91                 .flags    = FORMAT_FLAGS_PACKED,
  92         }, {
  93                 .name     = "15 bpp RGB, be",
  94                 .fourcc   = V4L2_PIX_FMT_RGB555X,
  95                 .depth    = 16,
  96                 .flags    = FORMAT_FLAGS_PACKED,
  97         }, {
  98                 .name     = "16 bpp RGB, le",
  99                 .fourcc   = V4L2_PIX_FMT_RGB565,
 100                 .depth    = 16,
 101                 .flags    = FORMAT_FLAGS_PACKED,
 102         }, {
 103                 .name     = "16 bpp RGB, be",
 104                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 105                 .depth    = 16,
 106                 .flags    = FORMAT_FLAGS_PACKED,
 107         }, {
 108                 .name     = "24 bpp RGB, le",
 109                 .fourcc   = V4L2_PIX_FMT_BGR24,
 110                 .depth    = 24,
 111                 .flags    = FORMAT_FLAGS_PACKED,
 112         }, {
 113                 .name     = "32 bpp RGB, le",
 114                 .fourcc   = V4L2_PIX_FMT_BGR32,
 115                 .depth    = 32,
 116                 .flags    = FORMAT_FLAGS_PACKED,
 117         }, {
 118                 .name     = "32 bpp RGB, be",
 119                 .fourcc   = V4L2_PIX_FMT_RGB32,
 120                 .depth    = 32,
 121                 .flags    = FORMAT_FLAGS_PACKED,
 122         }, {
 123                 .name     = "4:2:2, packed, YUYV",
 124                 .fourcc   = V4L2_PIX_FMT_YUYV,
 125                 .depth    = 16,
 126                 .flags    = FORMAT_FLAGS_PACKED,
 127         }, {
 128                 .name     = "4:2:2, packed, UYVY",
 129                 .fourcc   = V4L2_PIX_FMT_UYVY,
 130                 .depth    = 16,
 131                 .flags    = FORMAT_FLAGS_PACKED,
 132         },
 133 };
 134
 135 static struct cx23885_fmt *format_by_fourcc(unsigned int fourcc)
 136 {
 137         unsigned int i;
 138
 139         for (i = 0; i < ARRAY_SIZE(formats); i++)
 140                 if (formats[i].fourcc == fourcc)
 141                         return formats+i;
 142
 143         printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __FUNCTION__, fourcc);
 144         return NULL;
 145 }
 146
 147 /* ------------------------------------------------------------------- */
 148
 149 static const struct v4l2_queryctrl no_ctl = {
 150         .name  = "42",
 151         .flags = V4L2_CTRL_FLAG_DISABLED,
 152 };
 153
 154 static struct cx23885_ctrl cx23885_ctls[] = {
 155         /* --- video --- */
 156         {
 157                 .v = {
 158                         .id            = V4L2_CID_BRIGHTNESS,
 159                         .name          = "Brightness",
 160                         .minimum       = 0x00,
 161                         .maximum       = 0xff,
 162                         .step          = 1,
 163                         .default_value = 0x7f,
 164                         .type          = V4L2_CTRL_TYPE_INTEGER,
 165                 },
 166                 .off                   = 128,
 167                 .reg                   = LUMA_CTRL,
 168                 .mask                  = 0x00ff,
 169                 .shift                 = 0,
 170         }, {
 171                 .v = {
 172                         .id            = V4L2_CID_CONTRAST,
 173                         .name          = "Contrast",
 174                         .minimum       = 0,
 175                         .maximum       = 0xff,
 176                         .step          = 1,
 177                         .default_value = 0x3f,
 178                         .type          = V4L2_CTRL_TYPE_INTEGER,
 179                 },
 180                 .off                   = 0,
 181                 .reg                   = LUMA_CTRL,
 182                 .mask                  = 0xff00,
 183                 .shift                 = 8,
 184         }, {
 185                 .v = {
 186                         .id            = V4L2_CID_HUE,
 187                         .name          = "Hue",
 188                         .minimum       = 0,
 189                         .maximum       = 0xff,
 190                         .step          = 1,
 191                         .default_value = 0x7f,
 192                         .type          = V4L2_CTRL_TYPE_INTEGER,
 193                 },
 194                 .off                   = 128,
 195                 .reg                   = CHROMA_CTRL,
 196                 .mask                  = 0xff0000,
 197                 .shift                 = 16,
 198         }, {
 199                 /* strictly, this only describes only U saturation.
 200                  * V saturation is handled specially through code.
 201                  */
 202                 .v = {
 203                         .id            = V4L2_CID_SATURATION,
 204                         .name          = "Saturation",
 205                         .minimum       = 0,
 206                         .maximum       = 0xff,
 207                         .step          = 1,
 208                         .default_value = 0x7f,
 209                         .type          = V4L2_CTRL_TYPE_INTEGER,
 210                 },
 211                 .off                   = 0,
 212                 .reg                   = CHROMA_CTRL,
 213                 .mask                  = 0x00ff,
 214                 .shift                 = 0,
 215         }, {
 216         /* --- audio --- */
 217                 .v = {
 218                         .id            = V4L2_CID_AUDIO_MUTE,
 219                         .name          = "Mute",
 220                         .minimum       = 0,
 221                         .maximum       = 1,
 222                         .default_value = 1,
 223                         .type          = V4L2_CTRL_TYPE_BOOLEAN,
 224                 },
 225                 .reg                   = PATH1_CTL1,
 226                 .mask                  = (0x1f << 24),
 227                 .shift                 = 24,
 228         }, {
 229                 .v = {
 230                         .id            = V4L2_CID_AUDIO_VOLUME,
 231                         .name          = "Volume",
 232                         .minimum       = 0,
 233                         .maximum       = 0x3f,
 234                         .step          = 1,
 235                         .default_value = 0x3f,
 236                         .type          = V4L2_CTRL_TYPE_INTEGER,
 237                 },
 238                 .reg                   = PATH1_VOL_CTL,
 239                 .mask                  = 0xff,
 240                 .shift                 = 0,
 241         }
 242 };
 243 static const int CX23885_CTLS = ARRAY_SIZE(cx23885_ctls);
 244
 245 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 EXPORT_SYMBOL(cx23885_user_ctrls);
 256
 257 static const u32 *ctrl_classes[] = {
 258         cx23885_user_ctrls,
 259         NULL
 260 };
 261
 262 void cx23885_video_wakeup(struct cx23885_dev *dev,
 263                  struct cx23885_dmaqueue *q, u32 count)
 264 {
 265         struct cx23885_buffer *buf;
 266         int bc;
 267
 268         for (bc = 0;; bc++) {
 269                 if (list_empty(&q->active))
 270                         break;
 271                 buf = list_entry(q->active.next,
 272                                  struct cx23885_buffer, vb.queue);
 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                 do_gettimeofday(&buf->vb.ts);
 279                 dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 280                         count, buf->count);
 281                 buf->vb.state = VIDEOBUF_DONE;
 282                 list_del(&buf->vb.queue);
 283                 wake_up(&buf->vb.done);
 284         }
 285         if (list_empty(&q->active)) {
 286                 del_timer(&q->timeout);
 287         } else {
 288                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 289         }
 290         if (bc != 1)
 291                 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
 292                         __FUNCTION__, bc);
 293 }
 294
 295 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
 296 {
 297         dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
 298                 __FUNCTION__,
 299                 (unsigned int)norm,
 300                 v4l2_norm_to_name(norm));
 301
 302         dev->tvnorm = norm;
 303
 304
 305         /* Tell the analog tuner/demods */
 306         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_STD, &norm);
 307
 308         /* Tell the internal A/V decoder */
 309         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_STD, &norm);
 310
 311         return 0;
 312 }
 313
 314 struct video_device *cx23885_vdev_init(struct cx23885_dev *dev,
 315                                     struct pci_dev *pci,
 316                                     struct video_device *template,
 317                                     char *type)
 318 {
 319         struct video_device *vfd;
 320         dprintk(1, "%s()\n", __FUNCTION__);
 321
 322         vfd = video_device_alloc();
 323         if (NULL == vfd)
 324                 return NULL;
 325         *vfd = *template;
 326         vfd->minor   = -1;
 327         vfd->dev     = &pci->dev;
 328         vfd->release = video_device_release;
 329         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
 330                  dev->name, type, cx23885_boards[dev->board].name);
 331         return vfd;
 332 }
 333
 334 int cx23885_ctrl_query(struct v4l2_queryctrl *qctrl)
 335 {
 336         int i;
 337
 338         if (qctrl->id < V4L2_CID_BASE ||
 339             qctrl->id >= V4L2_CID_LASTP1)
 340                 return -EINVAL;
 341         for (i = 0; i < CX23885_CTLS; i++)
 342                 if (cx23885_ctls[i].v.id == qctrl->id)
 343                         break;
 344         if (i == CX23885_CTLS) {
 345                 *qctrl = no_ctl;
 346                 return 0;
 347         }
 348         *qctrl = cx23885_ctls[i].v;
 349         return 0;
 350 }
 351 EXPORT_SYMBOL(cx23885_ctrl_query);
 352
 353 /* ------------------------------------------------------------------- */
 354 /* resource management                                                 */
 355
 356 static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
 357         unsigned int bit)
 358 {
 359         dprintk(1, "%s()\n", __FUNCTION__);
 360         if (fh->resources & bit)
 361                 /* have it already allocated */
 362                 return 1;
 363
 364         /* is it free? */
 365         mutex_lock(&dev->lock);
 366         if (dev->resources & bit) {
 367                 /* no, someone else uses it */
 368                 mutex_unlock(&dev->lock);
 369                 return 0;
 370         }
 371         /* it's free, grab it */
 372         fh->resources  |= bit;
 373         dev->resources |= bit;
 374         dprintk(1, "res: get %d\n", bit);
 375         mutex_unlock(&dev->lock);
 376         return 1;
 377 }
 378
 379 static int res_check(struct cx23885_fh *fh, unsigned int bit)
 380 {
 381         return (fh->resources & bit);
 382 }
 383
 384 static int res_locked(struct cx23885_dev *dev, unsigned int bit)
 385 {
 386         return (dev->resources & bit);
 387 }
 388
 389 static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
 390         unsigned int bits)
 391 {
 392         BUG_ON((fh->resources & bits) != bits);
 393         dprintk(1, "%s()\n", __FUNCTION__);
 394
 395         mutex_lock(&dev->lock);
 396         fh->resources  &= ~bits;
 397         dev->resources &= ~bits;
 398         dprintk(1, "res: put %d\n", bits);
 399         mutex_unlock(&dev->lock);
 400 }
 401
 402 int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input)
 403 {
 404         struct v4l2_routing route;
 405         memset(&route, 0, sizeof(route));
 406
 407         dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
 408                 __FUNCTION__,
 409                 input, INPUT(input)->vmux,
 410                 INPUT(input)->gpio0, INPUT(input)->gpio1,
 411                 INPUT(input)->gpio2, INPUT(input)->gpio3);
 412         dev->input = input;
 413
 414         route.input = INPUT(input)->vmux;
 415
 416         /* Tell the internal A/V decoder */
 417         cx23885_call_i2c_clients(&dev->i2c_bus[2],
 418                 VIDIOC_INT_S_VIDEO_ROUTING, &route);
 419
 420         return 0;
 421 }
 422 EXPORT_SYMBOL(cx23885_video_mux);
 423
 424 /* ------------------------------------------------------------------ */
 425 int cx23885_set_scale(struct cx23885_dev *dev, unsigned int width,
 426         unsigned int height, enum v4l2_field field)
 427 {
 428         dprintk(1, "%s()\n", __FUNCTION__);
 429         return 0;
 430 }
 431
 432 static int cx23885_start_video_dma(struct cx23885_dev *dev,
 433                            struct cx23885_dmaqueue *q,
 434                            struct cx23885_buffer *buf)
 435 {
 436         dprintk(1, "%s()\n", __FUNCTION__);
 437
 438         /* setup fifo + format */
 439         cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01],
 440                                 buf->bpl, buf->risc.dma);
 441         cx23885_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
 442
 443         /* reset counter */
 444         cx_write(VID_A_GPCNT_CTL, 3);
 445         q->count = 1;
 446
 447         /* enable irq */
 448         cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | 0x01);
 449         cx_set(VID_A_INT_MSK, 0x000011);
 450
 451         /* start dma */
 452         cx_set(DEV_CNTRL2, (1<<5));
 453         cx_set(VID_A_DMA_CTL, 0x11); /* FIFO and RISC enable */
 454
 455         return 0;
 456 }
 457
 458 #ifdef CONFIG_PM
 459 static int cx23885_stop_video_dma(struct cx23885_dev *dev)
 460 {
 461         dprintk(1, "%s()\n", __FUNCTION__);
 462         /* stop dma */
 463         cx_clear(VID_A_DMA_CTL, 0x11);
 464
 465         /* disable irqs */
 466         cx_clear(PCI_INT_MSK, 0x000001);
 467         cx_clear(VID_A_INT_MSK, 0x000011);
 468
 469         return 0;
 470 }
 471 #endif
 472
 473 static int cx23885_restart_video_queue(struct cx23885_dev *dev,
 474                                struct cx23885_dmaqueue *q)
 475 {
 476         struct cx23885_buffer *buf, *prev;
 477         struct list_head *item;
 478         dprintk(1, "%s()\n", __FUNCTION__);
 479
 480         if (!list_empty(&q->active)) {
 481                 buf = list_entry(q->active.next, struct cx23885_buffer,
 482                         vb.queue);
 483                 dprintk(2, "restart_queue [%p/%d]: restart dma\n",
 484                         buf, buf->vb.i);
 485                 cx23885_start_video_dma(dev, q, buf);
 486                 list_for_each(item, &q->active) {
 487                         buf = list_entry(item, struct cx23885_buffer,
 488                                 vb.queue);
 489                         buf->count    = q->count++;
 490                 }
 491                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 492                 return 0;
 493         }
 494
 495         prev = NULL;
 496         for (;;) {
 497                 if (list_empty(&q->queued))
 498                         return 0;
 499                 buf = list_entry(q->queued.next, struct cx23885_buffer,
 500                         vb.queue);
 501                 if (NULL == prev) {
 502                         list_move_tail(&buf->vb.queue, &q->active);
 503                         cx23885_start_video_dma(dev, q, buf);
 504                         buf->vb.state = VIDEOBUF_ACTIVE;
 505                         buf->count    = q->count++;
 506                         mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 507                         dprintk(2, "[%p/%d] restart_queue - first active\n",
 508                                 buf, buf->vb.i);
 509
 510                 } else if (prev->vb.width  == buf->vb.width  &&
 511                            prev->vb.height == buf->vb.height &&
 512                            prev->fmt       == buf->fmt) {
 513                         list_move_tail(&buf->vb.queue, &q->active);
 514                         buf->vb.state = VIDEOBUF_ACTIVE;
 515                         buf->count    = q->count++;
 516                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 517                         prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
 518                         dprintk(2, "[%p/%d] restart_queue - move to active\n",
 519                                 buf, buf->vb.i);
 520                 } else {
 521                         return 0;
 522                 }
 523                 prev = buf;
 524         }
 525 }
 526
 527 static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
 528         unsigned int *size)
 529 {
 530         struct cx23885_fh *fh = q->priv_data;
 531
 532         *size = fh->fmt->depth*fh->width*fh->height >> 3;
 533         if (0 == *count)
 534                 *count = 32;
 535         while (*size * *count > vid_limit * 1024 * 1024)
 536                 (*count)--;
 537         return 0;
 538 }
 539
 540 static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
 541                enum v4l2_field field)
 542 {
 543         struct cx23885_fh *fh  = q->priv_data;
 544         struct cx23885_dev *dev = fh->dev;
 545         struct cx23885_buffer *buf =
 546                 container_of(vb, struct cx23885_buffer, vb);
 547         int rc, init_buffer = 0;
 548         u32 line0_offset, line1_offset;
 549         struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
 550
 551         BUG_ON(NULL == fh->fmt);
 552         if (fh->width  < 48 || fh->width  > norm_maxw(dev->tvnorm) ||
 553             fh->height < 32 || fh->height > norm_maxh(dev->tvnorm))
 554                 return -EINVAL;
 555         buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
 556         if (0 != buf->vb.baddr  &&  buf->vb.bsize < buf->vb.size)
 557                 return -EINVAL;
 558
 559         if (buf->fmt       != fh->fmt    ||
 560             buf->vb.width  != fh->width  ||
 561             buf->vb.height != fh->height ||
 562             buf->vb.field  != field) {
 563                 buf->fmt       = fh->fmt;
 564                 buf->vb.width  = fh->width;
 565                 buf->vb.height = fh->height;
 566                 buf->vb.field  = field;
 567                 init_buffer = 1;
 568         }
 569
 570         if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
 571                 init_buffer = 1;
 572                 rc = videobuf_iolock(q, &buf->vb, NULL);
 573                 if (0 != rc)
 574                         goto fail;
 575         }
 576
 577         if (init_buffer) {
 578                 buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
 579                 switch (buf->vb.field) {
 580                 case V4L2_FIELD_TOP:
 581                         cx23885_risc_buffer(dev->pci, &buf->risc,
 582                                          dma->sglist, 0, UNSET,
 583                                          buf->bpl, 0, buf->vb.height);
 584                         break;
 585                 case V4L2_FIELD_BOTTOM:
 586                         cx23885_risc_buffer(dev->pci, &buf->risc,
 587                                          dma->sglist, UNSET, 0,
 588                                          buf->bpl, 0, buf->vb.height);
 589                         break;
 590                 case V4L2_FIELD_INTERLACED:
 591                         if (dev->tvnorm & V4L2_STD_NTSC) {
 592                                 /* cx25840 transmits NTSC bottom field first */
 593                                 dprintk(1, "%s() Creating NTSC risc\n",
 594                                         __FUNCTION__);
 595                                 line0_offset = buf->bpl;
 596                                 line1_offset = 0;
 597                         } else {
 598                                 /* All other formats are top field first */
 599                                 dprintk(1, "%s() Creating PAL/SECAM risc\n",
 600                                         __FUNCTION__);
 601                                 line0_offset = 0;
 602                                 line1_offset = buf->bpl;
 603                         }
 604                         cx23885_risc_buffer(dev->pci, &buf->risc,
 605                                         dma->sglist, line0_offset,
 606                                         line1_offset,
 607                                         buf->bpl, buf->bpl,
 608                                         buf->vb.height >> 1);
 609                         break;
 610                 case V4L2_FIELD_SEQ_TB:
 611                         cx23885_risc_buffer(dev->pci, &buf->risc,
 612                                          dma->sglist,
 613                                          0, buf->bpl * (buf->vb.height >> 1),
 614                                          buf->bpl, 0,
 615                                          buf->vb.height >> 1);
 616                         break;
 617                 case V4L2_FIELD_SEQ_BT:
 618                         cx23885_risc_buffer(dev->pci, &buf->risc,
 619                                          dma->sglist,
 620                                          buf->bpl * (buf->vb.height >> 1), 0,
 621                                          buf->bpl, 0,
 622                                          buf->vb.height >> 1);
 623                         break;
 624                 default:
 625                         BUG();
 626                 }
 627         }
 628         dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
 629                 buf, buf->vb.i,
 630                 fh->width, fh->height, fh->fmt->depth, fh->fmt->name,
 631                 (unsigned long)buf->risc.dma);
 632
 633         buf->vb.state = VIDEOBUF_PREPARED;
 634         return 0;
 635
 636  fail:
 637         cx23885_free_buffer(q, buf);
 638         return rc;
 639 }
 640
 641 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 642 {
 643         struct cx23885_buffer   *buf = container_of(vb,
 644                 struct cx23885_buffer, vb);
 645         struct cx23885_buffer   *prev;
 646         struct cx23885_fh       *fh   = vq->priv_data;
 647         struct cx23885_dev      *dev  = fh->dev;
 648         struct cx23885_dmaqueue *q    = &dev->vidq;
 649
 650         /* add jump to stopper */
 651         buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
 652         buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
 653         buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
 654
 655         if (!list_empty(&q->queued)) {
 656                 list_add_tail(&buf->vb.queue, &q->queued);
 657                 buf->vb.state = VIDEOBUF_QUEUED;
 658                 dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
 659                         buf, buf->vb.i);
 660
 661         } else if (list_empty(&q->active)) {
 662                 list_add_tail(&buf->vb.queue, &q->active);
 663                 cx23885_start_video_dma(dev, q, buf);
 664                 buf->vb.state = VIDEOBUF_ACTIVE;
 665                 buf->count    = q->count++;
 666                 mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
 667                 dprintk(2, "[%p/%d] buffer_queue - first active\n",
 668                         buf, buf->vb.i);
 669
 670         } else {
 671                 prev = list_entry(q->active.prev, struct cx23885_buffer,
 672                         vb.queue);
 673                 if (prev->vb.width  == buf->vb.width  &&
 674                     prev->vb.height == buf->vb.height &&
 675                     prev->fmt       == buf->fmt) {
 676                         list_add_tail(&buf->vb.queue, &q->active);
 677                         buf->vb.state = VIDEOBUF_ACTIVE;
 678                         buf->count    = q->count++;
 679                         prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
 680                         /* 64 bit bits 63-32 */
 681                         prev->risc.jmp[2] = cpu_to_le32(0);
 682                         dprintk(2, "[%p/%d] buffer_queue - append to active\n",
 683                                 buf, buf->vb.i);
 684
 685                 } else {
 686                         list_add_tail(&buf->vb.queue, &q->queued);
 687                         buf->vb.state = VIDEOBUF_QUEUED;
 688                         dprintk(2, "[%p/%d] buffer_queue - first queued\n",
 689                                 buf, buf->vb.i);
 690                 }
 691         }
 692 }
 693
 694 static void buffer_release(struct videobuf_queue *q,
 695         struct videobuf_buffer *vb)
 696 {
 697         struct cx23885_buffer *buf = container_of(vb,
 698                 struct cx23885_buffer, vb);
 699
 700         cx23885_free_buffer(q, buf);
 701 }
 702
 703 static struct videobuf_queue_ops cx23885_video_qops = {
 704         .buf_setup    = buffer_setup,
 705         .buf_prepare  = buffer_prepare,
 706         .buf_queue    = buffer_queue,
 707         .buf_release  = buffer_release,
 708 };
 709
 710 static struct videobuf_queue *get_queue(struct cx23885_fh *fh)
 711 {
 712         switch (fh->type) {
 713         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 714                 return &fh->vidq;
 715         case V4L2_BUF_TYPE_VBI_CAPTURE:
 716                 return &fh->vbiq;
 717         default:
 718                 BUG();
 719                 return NULL;
 720         }
 721 }
 722
 723 static int get_resource(struct cx23885_fh *fh)
 724 {
 725         switch (fh->type) {
 726         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 727                 return RESOURCE_VIDEO;
 728         case V4L2_BUF_TYPE_VBI_CAPTURE:
 729                 return RESOURCE_VBI;
 730         default:
 731                 BUG();
 732                 return 0;
 733         }
 734 }
 735
 736 static int video_open(struct inode *inode, struct file *file)
 737 {
 738         int minor = iminor(inode);
 739         struct cx23885_dev *h, *dev = NULL;
 740         struct cx23885_fh *fh;
 741         struct list_head *list;
 742         enum v4l2_buf_type type = 0;
 743         int radio = 0;
 744
 745         list_for_each(list, &cx23885_devlist) {
 746                 h = list_entry(list, struct cx23885_dev, devlist);
 747                 if (h->video_dev->minor == minor) {
 748                         dev  = h;
 749                         type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 750                 }
 751                 if (h->vbi_dev &&
 752                    h->vbi_dev->minor == minor) {
 753                         dev  = h;
 754                         type = V4L2_BUF_TYPE_VBI_CAPTURE;
 755                 }
 756                 if (h->radio_dev &&
 757                     h->radio_dev->minor == minor) {
 758                         radio = 1;
 759                         dev   = h;
 760                 }
 761         }
 762         if (NULL == dev)
 763                 return -ENODEV;
 764
 765         dprintk(1, "open minor=%d radio=%d type=%s\n",
 766                 minor, radio, v4l2_type_names[type]);
 767
 768         /* allocate + initialize per filehandle data */
 769         fh = kzalloc(sizeof(*fh), GFP_KERNEL);
 770         if (NULL == fh)
 771                 return -ENOMEM;
 772         file->private_data = fh;
 773         fh->dev      = dev;
 774         fh->radio    = radio;
 775         fh->type     = type;
 776         fh->width    = 320;
 777         fh->height   = 240;
 778         fh->fmt      = format_by_fourcc(V4L2_PIX_FMT_BGR24);
 779
 780         videobuf_queue_pci_init(&fh->vidq, &cx23885_video_qops,
 781                             dev->pci, &dev->slock,
 782                             V4L2_BUF_TYPE_VIDEO_CAPTURE,
 783                             V4L2_FIELD_INTERLACED,
 784                             sizeof(struct cx23885_buffer),
 785                             fh);
 786
 787         dprintk(1, "post videobuf_queue_init()\n");
 788
 789
 790         return 0;
 791 }
 792
 793 static ssize_t video_read(struct file *file, char __user *data,
 794         size_t count, loff_t *ppos)
 795 {
 796         struct cx23885_fh *fh = file->private_data;
 797
 798         switch (fh->type) {
 799         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 800                 if (res_locked(fh->dev, RESOURCE_VIDEO))
 801                         return -EBUSY;
 802                 return videobuf_read_one(&fh->vidq, data, count, ppos,
 803                                          file->f_flags & O_NONBLOCK);
 804         case V4L2_BUF_TYPE_VBI_CAPTURE:
 805                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 806                         return -EBUSY;
 807                 return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
 808                                             file->f_flags & O_NONBLOCK);
 809         default:
 810                 BUG();
 811                 return 0;
 812         }
 813 }
 814
 815 static unsigned int video_poll(struct file *file,
 816         struct poll_table_struct *wait)
 817 {
 818         struct cx23885_fh *fh = file->private_data;
 819         struct cx23885_buffer *buf;
 820
 821         if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
 822                 if (!res_get(fh->dev, fh, RESOURCE_VBI))
 823                         return POLLERR;
 824                 return videobuf_poll_stream(file, &fh->vbiq, wait);
 825         }
 826
 827         if (res_check(fh, RESOURCE_VIDEO)) {
 828                 /* streaming capture */
 829                 if (list_empty(&fh->vidq.stream))
 830                         return POLLERR;
 831                 buf = list_entry(fh->vidq.stream.next,
 832                         struct cx23885_buffer, vb.stream);
 833         } else {
 834                 /* read() capture */
 835                 buf = (struct cx23885_buffer *)fh->vidq.read_buf;
 836                 if (NULL == buf)
 837                         return POLLERR;
 838         }
 839         poll_wait(file, &buf->vb.done, wait);
 840         if (buf->vb.state == VIDEOBUF_DONE ||
 841             buf->vb.state == VIDEOBUF_ERROR)
 842                 return POLLIN|POLLRDNORM;
 843         return 0;
 844 }
 845
 846 static int video_release(struct inode *inode, struct file *file)
 847 {
 848         struct cx23885_fh *fh = file->private_data;
 849         struct cx23885_dev *dev = fh->dev;
 850
 851         /* turn off overlay */
 852         if (res_check(fh, RESOURCE_OVERLAY)) {
 853                 /* FIXME */
 854                 res_free(dev, fh, RESOURCE_OVERLAY);
 855         }
 856
 857         /* stop video capture */
 858         if (res_check(fh, RESOURCE_VIDEO)) {
 859                 videobuf_queue_cancel(&fh->vidq);
 860                 res_free(dev, fh, RESOURCE_VIDEO);
 861         }
 862         if (fh->vidq.read_buf) {
 863                 buffer_release(&fh->vidq, fh->vidq.read_buf);
 864                 kfree(fh->vidq.read_buf);
 865         }
 866
 867         /* stop vbi capture */
 868         if (res_check(fh, RESOURCE_VBI)) {
 869                 if (fh->vbiq.streaming)
 870                         videobuf_streamoff(&fh->vbiq);
 871                 if (fh->vbiq.reading)
 872                         videobuf_read_stop(&fh->vbiq);
 873                 res_free(dev, fh, RESOURCE_VBI);
 874         }
 875
 876         videobuf_mmap_free(&fh->vidq);
 877         file->private_data = NULL;
 878         kfree(fh);
 879
 880
 881         return 0;
 882 }
 883
 884 static int video_mmap(struct file *file, struct vm_area_struct *vma)
 885 {
 886         struct cx23885_fh *fh = file->private_data;
 887
 888         return videobuf_mmap_mapper(get_queue(fh), vma);
 889 }
 890
 891 /* ------------------------------------------------------------------ */
 892 /* VIDEO CTRL IOCTLS                                                  */
 893
 894 int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
 895 {
 896         dprintk(1, "%s() calling cx25840(VIDIOC_G_CTRL)\n", __FUNCTION__);
 897         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_G_CTRL, ctl);
 898         return 0;
 899 }
 900 EXPORT_SYMBOL(cx23885_get_control);
 901
 902 int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl)
 903 {
 904         dprintk(1, "%s() calling cx25840(VIDIOC_S_CTRL)"
 905                 " (disabled - no action)\n", __FUNCTION__);
 906         return 0;
 907 }
 908 EXPORT_SYMBOL(cx23885_set_control);
 909
 910 static void init_controls(struct cx23885_dev *dev)
 911 {
 912         struct v4l2_control ctrl;
 913         int i;
 914
 915         for (i = 0; i < CX23885_CTLS; i++) {
 916                 ctrl.id = cx23885_ctls[i].v.id;
 917                 ctrl.value = cx23885_ctls[i].v.default_value;
 918
 919                 cx23885_set_control(dev, &ctrl);
 920         }
 921 }
 922
 923 /* ------------------------------------------------------------------ */
 924 /* VIDEO IOCTLS                                                       */
 925
 926 static int vidioc_g_fmt_cap(struct file *file, void *priv,
 927         struct v4l2_format *f)
 928 {
 929         struct cx23885_fh *fh   = priv;
 930
 931         f->fmt.pix.width        = fh->width;
 932         f->fmt.pix.height       = fh->height;
 933         f->fmt.pix.field        = fh->vidq.field;
 934         f->fmt.pix.pixelformat  = fh->fmt->fourcc;
 935         f->fmt.pix.bytesperline =
 936                 (f->fmt.pix.width * fh->fmt->depth) >> 3;
 937         f->fmt.pix.sizeimage =
 938                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 939
 940         return 0;
 941 }
 942
 943 static int vidioc_try_fmt_cap(struct file *file, void *priv,
 944         struct v4l2_format *f)
 945 {
 946         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
 947         struct cx23885_fmt *fmt;
 948         enum v4l2_field   field;
 949         unsigned int      maxw, maxh;
 950
 951         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
 952         if (NULL == fmt)
 953                 return -EINVAL;
 954
 955         field = f->fmt.pix.field;
 956         maxw  = norm_maxw(dev->tvnorm);
 957         maxh  = norm_maxh(dev->tvnorm);
 958
 959         if (V4L2_FIELD_ANY == field) {
 960                 field = (f->fmt.pix.height > maxh/2)
 961                         ? V4L2_FIELD_INTERLACED
 962                         : V4L2_FIELD_BOTTOM;
 963         }
 964
 965         switch (field) {
 966         case V4L2_FIELD_TOP:
 967         case V4L2_FIELD_BOTTOM:
 968                 maxh = maxh / 2;
 969                 break;
 970         case V4L2_FIELD_INTERLACED:
 971                 break;
 972         default:
 973                 return -EINVAL;
 974         }
 975
 976         f->fmt.pix.field = field;
 977         if (f->fmt.pix.height < 32)
 978                 f->fmt.pix.height = 32;
 979         if (f->fmt.pix.height > maxh)
 980                 f->fmt.pix.height = maxh;
 981         if (f->fmt.pix.width < 48)
 982                 f->fmt.pix.width = 48;
 983         if (f->fmt.pix.width > maxw)
 984                 f->fmt.pix.width = maxw;
 985         f->fmt.pix.width &= ~0x03;
 986         f->fmt.pix.bytesperline =
 987                 (f->fmt.pix.width * fmt->depth) >> 3;
 988         f->fmt.pix.sizeimage =
 989                 f->fmt.pix.height * f->fmt.pix.bytesperline;
 990
 991         return 0;
 992 }
 993
 994 static int vidioc_s_fmt_cap(struct file *file, void *priv,
 995         struct v4l2_format *f)
 996 {
 997         struct cx23885_fh *fh = priv;
 998         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
 999         int err;
1000
1001         dprintk(2, "%s()\n", __FUNCTION__);
1002         err = vidioc_try_fmt_cap(file, priv, f);
1003
1004         if (0 != err)
1005                 return err;
1006         fh->fmt        = format_by_fourcc(f->fmt.pix.pixelformat);
1007         fh->width      = f->fmt.pix.width;
1008         fh->height     = f->fmt.pix.height;
1009         fh->vidq.field = f->fmt.pix.field;
1010         dprintk(2, "%s() width=%d height=%d field=%d\n", __FUNCTION__,
1011                 fh->width, fh->height, fh->vidq.field);
1012         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_S_FMT, f);
1013         return 0;
1014 }
1015
1016 static int vidioc_querycap(struct file *file, void  *priv,
1017         struct v4l2_capability *cap)
1018 {
1019         struct cx23885_dev *dev  = ((struct cx23885_fh *)priv)->dev;
1020
1021         strcpy(cap->driver, "cx23885");
1022         strlcpy(cap->card, cx23885_boards[dev->board].name,
1023                 sizeof(cap->card));
1024         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1025         cap->version = CX23885_VERSION_CODE;
1026         cap->capabilities =
1027                 V4L2_CAP_VIDEO_CAPTURE |
1028                 V4L2_CAP_READWRITE     |
1029                 V4L2_CAP_STREAMING     |
1030                 V4L2_CAP_VBI_CAPTURE;
1031         if (UNSET != dev->tuner_type)
1032                 cap->capabilities |= V4L2_CAP_TUNER;
1033         return 0;
1034 }
1035
1036 static int vidioc_enum_fmt_cap(struct file *file, void  *priv,
1037         struct v4l2_fmtdesc *f)
1038 {
1039         if (unlikely(f->index >= ARRAY_SIZE(formats)))
1040                 return -EINVAL;
1041
1042         strlcpy(f->description, formats[f->index].name,
1043                 sizeof(f->description));
1044         f->pixelformat = formats[f->index].fourcc;
1045
1046         return 0;
1047 }
1048
1049 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1050 static int vidiocgmbuf(struct file *file, void *priv,
1051         struct video_mbuf *mbuf)
1052 {
1053         struct cx23885_fh *fh = priv;
1054         struct videobuf_queue *q;
1055         struct v4l2_requestbuffers req;
1056         unsigned int i;
1057         int err;
1058
1059         q = get_queue(fh);
1060         memset(&req, 0, sizeof(req));
1061         req.type   = q->type;
1062         req.count  = 8;
1063         req.memory = V4L2_MEMORY_MMAP;
1064         err = videobuf_reqbufs(q, &req);
1065         if (err < 0)
1066                 return err;
1067
1068         mbuf->frames = req.count;
1069         mbuf->size   = 0;
1070         for (i = 0; i < mbuf->frames; i++) {
1071                 mbuf->offsets[i]  = q->bufs[i]->boff;
1072                 mbuf->size       += q->bufs[i]->bsize;
1073         }
1074         return 0;
1075 }
1076 #endif
1077
1078 static int vidioc_reqbufs(struct file *file, void *priv,
1079         struct v4l2_requestbuffers *p)
1080 {
1081         struct cx23885_fh *fh = priv;
1082         return (videobuf_reqbufs(get_queue(fh), p));
1083 }
1084
1085 static int vidioc_querybuf(struct file *file, void *priv,
1086         struct v4l2_buffer *p)
1087 {
1088         struct cx23885_fh *fh = priv;
1089         return (videobuf_querybuf(get_queue(fh), p));
1090 }
1091
1092 static int vidioc_qbuf(struct file *file, void *priv,
1093         struct v4l2_buffer *p)
1094 {
1095         struct cx23885_fh *fh = priv;
1096         return (videobuf_qbuf(get_queue(fh), p));
1097 }
1098
1099 static int vidioc_dqbuf(struct file *file, void *priv,
1100         struct v4l2_buffer *p)
1101 {
1102         struct cx23885_fh *fh = priv;
1103         return (videobuf_dqbuf(get_queue(fh), p,
1104                                 file->f_flags & O_NONBLOCK));
1105 }
1106
1107 static int vidioc_streamon(struct file *file, void *priv,
1108         enum v4l2_buf_type i)
1109 {
1110         struct cx23885_fh *fh = priv;
1111         struct cx23885_dev *dev = fh->dev;
1112         dprintk(1, "%s()\n", __FUNCTION__);
1113
1114         if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
1115                 return -EINVAL;
1116         if (unlikely(i != fh->type))
1117                 return -EINVAL;
1118
1119         if (unlikely(!res_get(dev, fh, get_resource(fh))))
1120                 return -EBUSY;
1121         return videobuf_streamon(get_queue(fh));
1122 }
1123
1124 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
1125 {
1126         struct cx23885_fh *fh = priv;
1127         struct cx23885_dev *dev = fh->dev;
1128         int err, res;
1129         dprintk(1, "%s()\n", __FUNCTION__);
1130
1131         if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1132                 return -EINVAL;
1133         if (i != fh->type)
1134                 return -EINVAL;
1135
1136         res = get_resource(fh);
1137         err = videobuf_streamoff(get_queue(fh));
1138         if (err < 0)
1139                 return err;
1140         res_free(dev, fh, res);
1141         return 0;
1142 }
1143
1144 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
1145 {
1146         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1147         dprintk(1, "%s()\n", __FUNCTION__);
1148
1149         mutex_lock(&dev->lock);
1150         cx23885_set_tvnorm(dev, *tvnorms);
1151         mutex_unlock(&dev->lock);
1152
1153         return 0;
1154 }
1155
1156 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i)
1157 {
1158         static const char *iname[] = {
1159                 [CX23885_VMUX_COMPOSITE1] = "Composite1",
1160                 [CX23885_VMUX_COMPOSITE2] = "Composite2",
1161                 [CX23885_VMUX_COMPOSITE3] = "Composite3",
1162                 [CX23885_VMUX_COMPOSITE4] = "Composite4",
1163                 [CX23885_VMUX_SVIDEO]     = "S-Video",
1164                 [CX23885_VMUX_TELEVISION] = "Television",
1165                 [CX23885_VMUX_CABLE]      = "Cable TV",
1166                 [CX23885_VMUX_DVB]        = "DVB",
1167                 [CX23885_VMUX_DEBUG]      = "for debug only",
1168         };
1169         unsigned int n;
1170         dprintk(1, "%s()\n", __FUNCTION__);
1171
1172         n = i->index;
1173         if (n >= 4)
1174                 return -EINVAL;
1175
1176         if (0 == INPUT(n)->type)
1177                 return -EINVAL;
1178
1179         memset(i, 0, sizeof(*i));
1180         i->index = n;
1181         i->type  = V4L2_INPUT_TYPE_CAMERA;
1182         strcpy(i->name, iname[INPUT(n)->type]);
1183         if ((CX23885_VMUX_TELEVISION == INPUT(n)->type) ||
1184                 (CX23885_VMUX_CABLE == INPUT(n)->type))
1185                 i->type = V4L2_INPUT_TYPE_TUNER;
1186                 i->std = CX23885_NORMS;
1187         return 0;
1188 }
1189 EXPORT_SYMBOL(cx23885_enum_input);
1190
1191 static int vidioc_enum_input(struct file *file, void *priv,
1192                                 struct v4l2_input *i)
1193 {
1194         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1195         dprintk(1, "%s()\n", __FUNCTION__);
1196         return cx23885_enum_input(dev, i);
1197 }
1198
1199 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1200 {
1201         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1202
1203         *i = dev->input;
1204         dprintk(1, "%s() returns %d\n", __FUNCTION__, *i);
1205         return 0;
1206 }
1207
1208 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
1209 {
1210         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1211
1212         dprintk(1, "%s(%d)\n", __FUNCTION__, i);
1213
1214         if (i >= 4) {
1215                 dprintk(1, "%s() -EINVAL\n", __FUNCTION__);
1216                 return -EINVAL;
1217         }
1218
1219         mutex_lock(&dev->lock);
1220         cx23885_video_mux(dev, i);
1221         mutex_unlock(&dev->lock);
1222         return 0;
1223 }
1224
1225 static int vidioc_queryctrl(struct file *file, void *priv,
1226                                 struct v4l2_queryctrl *qctrl)
1227 {
1228         qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
1229         if (unlikely(qctrl->id == 0))
1230                 return -EINVAL;
1231         return cx23885_ctrl_query(qctrl);
1232 }
1233
1234 static int vidioc_g_ctrl(struct file *file, void *priv,
1235                                 struct v4l2_control *ctl)
1236 {
1237         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1238
1239         return cx23885_get_control(dev, ctl);
1240 }
1241
1242 static int vidioc_s_ctrl(struct file *file, void *priv,
1243                                 struct v4l2_control *ctl)
1244 {
1245         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1246
1247         return cx23885_set_control(dev, ctl);
1248 }
1249
1250 static int vidioc_g_tuner(struct file *file, void *priv,
1251                                 struct v4l2_tuner *t)
1252 {
1253         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1254
1255         if (unlikely(UNSET == dev->tuner_type))
1256                 return -EINVAL;
1257         if (0 != t->index)
1258                 return -EINVAL;
1259
1260         strcpy(t->name, "Television");
1261         t->type       = V4L2_TUNER_ANALOG_TV;
1262         t->capability = V4L2_TUNER_CAP_NORM;
1263         t->rangehigh  = 0xffffffffUL;
1264         t->signal = 0xffff ; /* LOCKED */
1265         return 0;
1266 }
1267
1268 static int vidioc_s_tuner(struct file *file, void *priv,
1269                                 struct v4l2_tuner *t)
1270 {
1271         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1272
1273         if (UNSET == dev->tuner_type)
1274                 return -EINVAL;
1275         if (0 != t->index)
1276                 return -EINVAL;
1277         return 0;
1278 }
1279
1280 static int vidioc_g_frequency(struct file *file, void *priv,
1281                                 struct v4l2_frequency *f)
1282 {
1283         struct cx23885_fh *fh = priv;
1284         struct cx23885_dev *dev = fh->dev;
1285
1286         if (unlikely(UNSET == dev->tuner_type))
1287                 return -EINVAL;
1288
1289         /* f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; */
1290         f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1291         f->frequency = dev->freq;
1292
1293         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_FREQUENCY, f);
1294
1295         return 0;
1296 }
1297
1298 int cx23885_set_freq(struct cx23885_dev *dev, struct v4l2_frequency *f)
1299 {
1300         if (unlikely(UNSET == dev->tuner_type))
1301                 return -EINVAL;
1302         if (unlikely(f->tuner != 0))
1303                 return -EINVAL;
1304
1305         mutex_lock(&dev->lock);
1306         dev->freq = f->frequency;
1307
1308         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_FREQUENCY, f);
1309
1310         /* When changing channels it is required to reset TVAUDIO */
1311         msleep(10);
1312
1313         mutex_unlock(&dev->lock);
1314
1315         return 0;
1316 }
1317 EXPORT_SYMBOL(cx23885_set_freq);
1318
1319 static int vidioc_s_frequency(struct file *file, void *priv,
1320                                 struct v4l2_frequency *f)
1321 {
1322         struct cx23885_fh *fh = priv;
1323         struct cx23885_dev *dev = fh->dev;
1324
1325         if (unlikely(0 == fh->radio && f->type != V4L2_TUNER_ANALOG_TV))
1326                 return -EINVAL;
1327         if (unlikely(1 == fh->radio && f->type != V4L2_TUNER_RADIO))
1328                 return -EINVAL;
1329
1330         return
1331                 cx23885_set_freq(dev, f);
1332 }
1333
1334 #ifdef CONFIG_VIDEO_ADV_DEBUG
1335 static int vidioc_g_register(struct file *file, void *fh,
1336                                 struct v4l2_register *reg)
1337 {
1338         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1339
1340         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_G_REGISTER, reg);
1341
1342         return 0;
1343 }
1344
1345 static int vidioc_s_register(struct file *file, void *fh,
1346                                 struct v4l2_register *reg)
1347 {
1348         struct cx23885_dev *dev = ((struct cx23885_fh *)fh)->dev;
1349
1350         cx23885_call_i2c_clients(&dev->i2c_bus[2], VIDIOC_DBG_S_REGISTER, reg);
1351         return 0;
1352 }
1353 #endif
1354
1355 /* ----------------------------------------------------------- */
1356 /* RADIO ESPECIFIC IOCTLS                                      */
1357 /* ----------------------------------------------------------- */
1358
1359 static int radio_querycap(struct file *file, void  *priv,
1360                                         struct v4l2_capability *cap)
1361 {
1362         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1363
1364         strcpy(cap->driver, "cx23885");
1365         strlcpy(cap->card, cx23885_boards[dev->board].name,
1366                 sizeof(cap->card));
1367         sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1368         cap->version = CX23885_VERSION_CODE;
1369         cap->capabilities = V4L2_CAP_TUNER;
1370         return 0;
1371 }
1372
1373 static int radio_g_tuner(struct file *file, void *priv,
1374                                 struct v4l2_tuner *t)
1375 {
1376         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1377
1378         if (unlikely(t->index > 0))
1379                 return -EINVAL;
1380
1381         strcpy(t->name, "Radio");
1382         t->type = V4L2_TUNER_RADIO;
1383
1384         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_G_TUNER, t);
1385         return 0;
1386 }
1387
1388 static int radio_enum_input(struct file *file, void *priv,
1389                                 struct v4l2_input *i)
1390 {
1391         if (i->index != 0)
1392                 return -EINVAL;
1393         strcpy(i->name, "Radio");
1394         i->type = V4L2_INPUT_TYPE_TUNER;
1395
1396         return 0;
1397 }
1398
1399 static int radio_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
1400 {
1401         if (unlikely(a->index))
1402                 return -EINVAL;
1403
1404         memset(a, 0, sizeof(*a));
1405         strcpy(a->name, "Radio");
1406         return 0;
1407 }
1408
1409 /* FIXME: Should add a standard for radio */
1410
1411 static int radio_s_tuner(struct file *file, void *priv,
1412                                 struct v4l2_tuner *t)
1413 {
1414         struct cx23885_dev *dev = ((struct cx23885_fh *)priv)->dev;
1415
1416         if (0 != t->index)
1417                 return -EINVAL;
1418
1419         cx23885_call_i2c_clients(&dev->i2c_bus[1], VIDIOC_S_TUNER, t);
1420
1421         return 0;
1422 }
1423
1424 static int radio_s_audio(struct file *file, void *fh,
1425                           struct v4l2_audio *a)
1426 {
1427         return 0;
1428 }
1429
1430 static int radio_s_input(struct file *file, void *fh, unsigned int i)
1431 {
1432         return 0;
1433 }
1434
1435 static int radio_queryctrl(struct file *file, void *priv,
1436                             struct v4l2_queryctrl *c)
1437 {
1438         int i;
1439
1440         if (c->id <  V4L2_CID_BASE ||
1441                 c->id >= V4L2_CID_LASTP1)
1442                 return -EINVAL;
1443         if (c->id == V4L2_CID_AUDIO_MUTE) {
1444                 for (i = 0; i < CX23885_CTLS; i++)
1445                         if (cx23885_ctls[i].v.id == c->id)
1446                                 break;
1447                 *c = cx23885_ctls[i].v;
1448         } else
1449                 *c = no_ctl;
1450         return 0;
1451 }
1452
1453 /* ----------------------------------------------------------- */
1454
1455 static void cx23885_vid_timeout(unsigned long data)
1456 {
1457         struct cx23885_dev *dev = (struct cx23885_dev *)data;
1458         struct cx23885_dmaqueue *q = &dev->vidq;
1459         struct cx23885_buffer *buf;
1460         unsigned long flags;
1461
1462         cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1463
1464         cx_clear(VID_A_DMA_CTL, 0x11);
1465
1466         spin_lock_irqsave(&dev->slock, flags);
1467         while (!list_empty(&q->active)) {
1468                 buf = list_entry(q->active.next,
1469                         struct cx23885_buffer, vb.queue);
1470                 list_del(&buf->vb.queue);
1471                 buf->vb.state = VIDEOBUF_ERROR;
1472                 wake_up(&buf->vb.done);
1473                 printk(KERN_ERR "%s/0: [%p/%d] timeout - dma=0x%08lx\n",
1474                         dev->name, buf, buf->vb.i,
1475                         (unsigned long)buf->risc.dma);
1476         }
1477         cx23885_restart_video_queue(dev, q);
1478         spin_unlock_irqrestore(&dev->slock, flags);
1479 }
1480
1481 int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
1482 {
1483         u32 mask, count;
1484         int handled = 0;
1485
1486         mask   = cx_read(VID_A_INT_MSK);
1487         if (0 == (status & mask))
1488                 return handled;
1489         cx_write(VID_A_INT_STAT, status);
1490
1491         dprintk(2, "%s() status = 0x%08x\n", __FUNCTION__, status);
1492         /* risc op code error */
1493         if (status & (1 << 16)) {
1494                 printk(KERN_WARNING "%s/0: video risc op code error\n",
1495                         dev->name);
1496                 cx_clear(VID_A_DMA_CTL, 0x11);
1497                 cx23885_sram_channel_dump(dev, &dev->sram_channels[SRAM_CH01]);
1498         }
1499
1500         /* risc1 y */
1501         if (status & 0x01) {
1502                 spin_lock(&dev->slock);
1503                 count = cx_read(VID_A_GPCNT);
1504                 cx23885_video_wakeup(dev, &dev->vidq, count);
1505                 spin_unlock(&dev->slock);
1506                 handled++;
1507         }
1508         /* risc2 y */
1509         if (status & 0x10) {
1510                 dprintk(2, "stopper video\n");
1511                 spin_lock(&dev->slock);
1512                 cx23885_restart_video_queue(dev, &dev->vidq);
1513                 spin_unlock(&dev->slock);
1514                 handled++;
1515         }
1516
1517         return handled;
1518 }
1519
1520
1521 /* ----------------------------------------------------------- */
1522 /* exported stuff                                              */
1523
1524 static const struct file_operations video_fops = {
1525         .owner         = THIS_MODULE,
1526         .open          = video_open,
1527         .release       = video_release,
1528         .read          = video_read,
1529         .poll          = video_poll,
1530         .mmap          = video_mmap,
1531         .ioctl         = video_ioctl2,
1532         .compat_ioctl  = v4l_compat_ioctl32,
1533         .llseek        = no_llseek,
1534 };
1535
1536 static struct video_device cx23885_vbi_template;
1537 static struct video_device cx23885_video_template = {
1538         .name                 = "cx23885-video",
1539         .type                 = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES,
1540         .fops                 = &video_fops,
1541         .minor                = -1,
1542         .vidioc_querycap      = vidioc_querycap,
1543         .vidioc_enum_fmt_cap  = vidioc_enum_fmt_cap,
1544         .vidioc_g_fmt_cap     = vidioc_g_fmt_cap,
1545         .vidioc_try_fmt_cap   = vidioc_try_fmt_cap,
1546         .vidioc_s_fmt_cap     = vidioc_s_fmt_cap,
1547         .vidioc_g_fmt_vbi     = cx23885_vbi_fmt,
1548         .vidioc_try_fmt_vbi   = cx23885_vbi_fmt,
1549         .vidioc_s_fmt_vbi     = cx23885_vbi_fmt,
1550         .vidioc_reqbufs       = vidioc_reqbufs,
1551         .vidioc_querybuf      = vidioc_querybuf,
1552         .vidioc_qbuf          = vidioc_qbuf,
1553         .vidioc_dqbuf         = vidioc_dqbuf,
1554         .vidioc_s_std         = vidioc_s_std,
1555         .vidioc_enum_input    = vidioc_enum_input,
1556         .vidioc_g_input       = vidioc_g_input,
1557         .vidioc_s_input       = vidioc_s_input,
1558         .vidioc_queryctrl     = vidioc_queryctrl,
1559         .vidioc_g_ctrl        = vidioc_g_ctrl,
1560         .vidioc_s_ctrl        = vidioc_s_ctrl,
1561         .vidioc_streamon      = vidioc_streamon,
1562         .vidioc_streamoff     = vidioc_streamoff,
1563 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1564         .vidiocgmbuf          = vidiocgmbuf,
1565 #endif
1566         .vidioc_g_tuner       = vidioc_g_tuner,
1567         .vidioc_s_tuner       = vidioc_s_tuner,
1568         .vidioc_g_frequency   = vidioc_g_frequency,
1569         .vidioc_s_frequency   = vidioc_s_frequency,
1570 #ifdef CONFIG_VIDEO_ADV_DEBUG
1571         .vidioc_g_register    = vidioc_g_register,
1572         .vidioc_s_register    = vidioc_s_register,
1573 #endif
1574         .tvnorms              = CX23885_NORMS,
1575         .current_norm         = V4L2_STD_NTSC_M,
1576 };
1577
1578 static const struct file_operations radio_fops = {
1579         .owner         = THIS_MODULE,
1580         .open          = video_open,
1581         .release       = video_release,
1582         .ioctl         = video_ioctl2,
1583         .compat_ioctl  = v4l_compat_ioctl32,
1584         .llseek        = no_llseek,
1585 };
1586
1587
1588 void cx23885_video_unregister(struct cx23885_dev *dev)
1589 {
1590         dprintk(1, "%s()\n", __FUNCTION__);
1591         cx_clear(PCI_INT_MSK, 1);
1592
1593         if (dev->video_dev) {
1594                 if (-1 != dev->video_dev->minor)
1595                         video_unregister_device(dev->video_dev);
1596                 else
1597                         video_device_release(dev->video_dev);
1598                 dev->video_dev = NULL;
1599
1600                 btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
1601         }
1602 }
1603
1604 int cx23885_video_register(struct cx23885_dev *dev)
1605 {
1606         int err;
1607
1608         dprintk(1, "%s()\n", __FUNCTION__);
1609         spin_lock_init(&dev->slock);
1610
1611         /* Initialize VBI template */
1612         memcpy(&cx23885_vbi_template, &cx23885_video_template,
1613                 sizeof(cx23885_vbi_template));
1614         strcpy(cx23885_vbi_template.name, "cx23885-vbi");
1615         cx23885_vbi_template.type = VID_TYPE_TELETEXT|VID_TYPE_TUNER;
1616
1617         dev->tvnorm = cx23885_video_template.current_norm;
1618
1619         /* init video dma queues */
1620         INIT_LIST_HEAD(&dev->vidq.active);
1621         INIT_LIST_HEAD(&dev->vidq.queued);
1622         dev->vidq.timeout.function = cx23885_vid_timeout;
1623         dev->vidq.timeout.data = (unsigned long)dev;
1624         init_timer(&dev->vidq.timeout);
1625         cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
1626                 VID_A_DMA_CTL, 0x11, 0x00);
1627
1628         cx_set(PCI_INT_MSK, 1);
1629
1630
1631         /* register v4l devices */
1632         dev->video_dev = cx23885_vdev_init(dev, dev->pci,
1633                 &cx23885_video_template, "video");
1634         err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
1635                                     video_nr[dev->nr]);
1636         if (err < 0) {
1637                 printk(KERN_INFO "%s: can't register video device\n",
1638                         dev->name);
1639                 goto fail_unreg;
1640         }
1641         printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
1642                dev->name, dev->video_dev->minor & 0x1f);
1643         /* initial device configuration */
1644         mutex_lock(&dev->lock);
1645         cx23885_set_tvnorm(dev, dev->tvnorm);
1646         init_controls(dev);
1647         cx23885_video_mux(dev, 0);
1648         mutex_unlock(&dev->lock);
1649
1650         /* FIXME start tvaudio thread */
1651
1652         return 0;
1653
1654 fail_unreg:
1655         cx23885_video_unregister(dev);
1656         return err;
1657 }
1658