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

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