kernel/drivers/media/pci/zoran/zoran_driver.c

   1 /*
   2  * Zoran zr36057/zr36067 PCI controller driver, for the
   3  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
   4  * Media Labs LML33/LML33R10.
   5  *
   6  * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
   7  *
   8  * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
   9  *
  10  * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
  11  *
  12  * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
  13  *
  14  * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
  15  *
  16  * Based on
  17  *
  18  * Miro DC10 driver
  19  * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
  20  *
  21  * Iomega Buz driver version 1.0
  22  * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
  23  *
  24  * buz.0.0.3
  25  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
  26  *
  27  * bttv - Bt848 frame grabber driver
  28  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
  29  *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
  30  *
  31  *
  32  * This program is free software; you can redistribute it and/or modify
  33  * it under the terms of the GNU General Public License as published by
  34  * the Free Software Foundation; either version 2 of the License, or
  35  * (at your option) any later version.
  36  *
  37  * This program is distributed in the hope that it will be useful,
  38  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  39  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  40  * GNU General Public License for more details.
  41  *
  42  * You should have received a copy of the GNU General Public License
  43  * along with this program; if not, write to the Free Software
  44  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  45  */
  46
  47 #include <linux/init.h>
  48 #include <linux/module.h>
  49 #include <linux/delay.h>
  50 #include <linux/slab.h>
  51 #include <linux/pci.h>
  52 #include <linux/vmalloc.h>
  53 #include <linux/wait.h>
  54
  55 #include <linux/interrupt.h>
  56 #include <linux/i2c.h>
  57 #include <linux/i2c-algo-bit.h>
  58
  59 #include <linux/spinlock.h>
  60
  61 #include <linux/videodev2.h>
  62 #include <media/v4l2-common.h>
  63 #include <media/v4l2-ioctl.h>
  64 #include "videocodec.h"
  65
  66 #include <asm/byteorder.h>
  67 #include <asm/io.h>
  68 #include <asm/uaccess.h>
  69 #include <linux/proc_fs.h>
  70
  71 #include <linux/mutex.h>
  72 #include "zoran.h"
  73 #include "zoran_device.h"
  74 #include "zoran_card.h"
  75
  76
  77 const struct zoran_format zoran_formats[] = {
  78         {
  79                 .name = "15-bit RGB LE",
  80                 .fourcc = V4L2_PIX_FMT_RGB555,
  81                 .colorspace = V4L2_COLORSPACE_SRGB,
  82                 .depth = 15,
  83                 .flags = ZORAN_FORMAT_CAPTURE |
  84                          ZORAN_FORMAT_OVERLAY,
  85                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
  86                            ZR36057_VFESPFR_LittleEndian,
  87         }, {
  88                 .name = "15-bit RGB BE",
  89                 .fourcc = V4L2_PIX_FMT_RGB555X,
  90                 .colorspace = V4L2_COLORSPACE_SRGB,
  91                 .depth = 15,
  92                 .flags = ZORAN_FORMAT_CAPTURE |
  93                          ZORAN_FORMAT_OVERLAY,
  94                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
  95         }, {
  96                 .name = "16-bit RGB LE",
  97                 .fourcc = V4L2_PIX_FMT_RGB565,
  98                 .colorspace = V4L2_COLORSPACE_SRGB,
  99                 .depth = 16,
 100                 .flags = ZORAN_FORMAT_CAPTURE |
 101                          ZORAN_FORMAT_OVERLAY,
 102                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 103                            ZR36057_VFESPFR_LittleEndian,
 104         }, {
 105                 .name = "16-bit RGB BE",
 106                 .fourcc = V4L2_PIX_FMT_RGB565X,
 107                 .colorspace = V4L2_COLORSPACE_SRGB,
 108                 .depth = 16,
 109                 .flags = ZORAN_FORMAT_CAPTURE |
 110                          ZORAN_FORMAT_OVERLAY,
 111                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 112         }, {
 113                 .name = "24-bit RGB",
 114                 .fourcc = V4L2_PIX_FMT_BGR24,
 115                 .colorspace = V4L2_COLORSPACE_SRGB,
 116                 .depth = 24,
 117                 .flags = ZORAN_FORMAT_CAPTURE |
 118                          ZORAN_FORMAT_OVERLAY,
 119                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 120         }, {
 121                 .name = "32-bit RGB LE",
 122                 .fourcc = V4L2_PIX_FMT_BGR32,
 123                 .colorspace = V4L2_COLORSPACE_SRGB,
 124                 .depth = 32,
 125                 .flags = ZORAN_FORMAT_CAPTURE |
 126                          ZORAN_FORMAT_OVERLAY,
 127                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 128         }, {
 129                 .name = "32-bit RGB BE",
 130                 .fourcc = V4L2_PIX_FMT_RGB32,
 131                 .colorspace = V4L2_COLORSPACE_SRGB,
 132                 .depth = 32,
 133                 .flags = ZORAN_FORMAT_CAPTURE |
 134                          ZORAN_FORMAT_OVERLAY,
 135                 .vfespfr = ZR36057_VFESPFR_RGB888,
 136         }, {
 137                 .name = "4:2:2, packed, YUYV",
 138                 .fourcc = V4L2_PIX_FMT_YUYV,
 139                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 140                 .depth = 16,
 141                 .flags = ZORAN_FORMAT_CAPTURE |
 142                          ZORAN_FORMAT_OVERLAY,
 143                 .vfespfr = ZR36057_VFESPFR_YUV422,
 144         }, {
 145                 .name = "4:2:2, packed, UYVY",
 146                 .fourcc = V4L2_PIX_FMT_UYVY,
 147                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 148                 .depth = 16,
 149                 .flags = ZORAN_FORMAT_CAPTURE |
 150                          ZORAN_FORMAT_OVERLAY,
 151                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 152         }, {
 153                 .name = "Hardware-encoded Motion-JPEG",
 154                 .fourcc = V4L2_PIX_FMT_MJPEG,
 155                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 156                 .depth = 0,
 157                 .flags = ZORAN_FORMAT_CAPTURE |
 158                          ZORAN_FORMAT_PLAYBACK |
 159                          ZORAN_FORMAT_COMPRESSED,
 160         }
 161 };
 162 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 163
 164         /* small helper function for calculating buffersizes for v4l2
 165          * we calculate the nearest higher power-of-two, which
 166          * will be the recommended buffersize */
 167 static __u32
 168 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 169 {
 170         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 171         __u32 num = (1024 * 512) / (div);
 172         __u32 result = 2;
 173
 174         num--;
 175         while (num) {
 176                 num >>= 1;
 177                 result <<= 1;
 178         }
 179
 180         if (result > jpg_bufsize)
 181                 return jpg_bufsize;
 182         if (result < 8192)
 183                 return 8192;
 184         return result;
 185 }
 186
 187 /* forward references */
 188 static void v4l_fbuffer_free(struct zoran_fh *fh);
 189 static void jpg_fbuffer_free(struct zoran_fh *fh);
 190
 191 /* Set mapping mode */
 192 static void map_mode_raw(struct zoran_fh *fh)
 193 {
 194         fh->map_mode = ZORAN_MAP_MODE_RAW;
 195         fh->buffers.buffer_size = v4l_bufsize;
 196         fh->buffers.num_buffers = v4l_nbufs;
 197 }
 198 static void map_mode_jpg(struct zoran_fh *fh, int play)
 199 {
 200         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
 201         fh->buffers.buffer_size = jpg_bufsize;
 202         fh->buffers.num_buffers = jpg_nbufs;
 203 }
 204 static inline const char *mode_name(enum zoran_map_mode mode)
 205 {
 206         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
 207 }
 208
 209 /*
 210  *   Allocate the V4L grab buffers
 211  *
 212  *   These have to be pysically contiguous.
 213  */
 214
 215 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
 216 {
 217         struct zoran *zr = fh->zr;
 218         int i, off;
 219         unsigned char *mem;
 220
 221         for (i = 0; i < fh->buffers.num_buffers; i++) {
 222                 if (fh->buffers.buffer[i].v4l.fbuffer)
 223                         dprintk(2,
 224                                 KERN_WARNING
 225                                 "%s: %s - buffer %d already allocated!?\n",
 226                                 ZR_DEVNAME(zr), __func__, i);
 227
 228                 //udelay(20);
 229                 mem = kmalloc(fh->buffers.buffer_size,
 230                               GFP_KERNEL | __GFP_NOWARN);
 231                 if (!mem) {
 232                         dprintk(1,
 233                                 KERN_ERR
 234                                 "%s: %s - kmalloc for V4L buf %d failed\n",
 235                                 ZR_DEVNAME(zr), __func__, i);
 236                         v4l_fbuffer_free(fh);
 237                         return -ENOBUFS;
 238                 }
 239                 fh->buffers.buffer[i].v4l.fbuffer = mem;
 240                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
 241                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
 242                 for (off = 0; off < fh->buffers.buffer_size;
 243                      off += PAGE_SIZE)
 244                         SetPageReserved(virt_to_page(mem + off));
 245                 dprintk(4,
 246                         KERN_INFO
 247                         "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
 248                         ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
 249                         (unsigned long long)virt_to_bus(mem));
 250         }
 251
 252         fh->buffers.allocated = 1;
 253
 254         return 0;
 255 }
 256
 257 /* free the V4L grab buffers */
 258 static void v4l_fbuffer_free(struct zoran_fh *fh)
 259 {
 260         struct zoran *zr = fh->zr;
 261         int i, off;
 262         unsigned char *mem;
 263
 264         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
 265
 266         for (i = 0; i < fh->buffers.num_buffers; i++) {
 267                 if (!fh->buffers.buffer[i].v4l.fbuffer)
 268                         continue;
 269
 270                 mem = fh->buffers.buffer[i].v4l.fbuffer;
 271                 for (off = 0; off < fh->buffers.buffer_size;
 272                      off += PAGE_SIZE)
 273                         ClearPageReserved(virt_to_page(mem + off));
 274                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
 275                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
 276         }
 277
 278         fh->buffers.allocated = 0;
 279 }
 280
 281 /*
 282  *   Allocate the MJPEG grab buffers.
 283  *
 284  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 285  *   each MJPEG buffer needs to be physically contiguous.
 286  *   (RJ: This statement is from Dave Perks' original driver,
 287  *   I could never check it because I have a zr36067)
 288  *
 289  *   RJ: The contents grab buffers needs never be accessed in the driver.
 290  *       Therefore there is no need to allocate them with vmalloc in order
 291  *       to get a contiguous virtual memory space.
 292  *       I don't understand why many other drivers first allocate them with
 293  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 294  *       virtual addresses) and then again have to make a lot of efforts
 295  *       to get the physical address.
 296  *
 297  *   Ben Capper:
 298  *       On big-endian architectures (such as ppc) some extra steps
 299  *       are needed. When reading and writing to the stat_com array
 300  *       and fragment buffers, the device expects to see little-
 301  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 302  *       in this function (and one or two others in zoran_device.c)
 303  *       ensure that these values are always stored in little-endian
 304  *       form, regardless of architecture. The zr36057 does Very Bad
 305  *       Things on big endian architectures if the stat_com array
 306  *       and fragment buffers are not little-endian.
 307  */
 308
 309 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
 310 {
 311         struct zoran *zr = fh->zr;
 312         int i, j, off;
 313         u8 *mem;
 314
 315         for (i = 0; i < fh->buffers.num_buffers; i++) {
 316                 if (fh->buffers.buffer[i].jpg.frag_tab)
 317                         dprintk(2,
 318                                 KERN_WARNING
 319                                 "%s: %s - buffer %d already allocated!?\n",
 320                                 ZR_DEVNAME(zr), __func__, i);
 321
 322                 /* Allocate fragment table for this buffer */
 323
 324                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 325                 if (!mem) {
 326                         dprintk(1,
 327                                 KERN_ERR
 328                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
 329                                 ZR_DEVNAME(zr), __func__, i);
 330                         jpg_fbuffer_free(fh);
 331                         return -ENOBUFS;
 332                 }
 333                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
 334                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
 335
 336                 if (fh->buffers.need_contiguous) {
 337                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
 338                         if (mem == NULL) {
 339                                 dprintk(1,
 340                                         KERN_ERR
 341                                         "%s: %s - kmalloc failed for buffer %d\n",
 342                                         ZR_DEVNAME(zr), __func__, i);
 343                                 jpg_fbuffer_free(fh);
 344                                 return -ENOBUFS;
 345                         }
 346                         fh->buffers.buffer[i].jpg.frag_tab[0] =
 347                                 cpu_to_le32(virt_to_bus(mem));
 348                         fh->buffers.buffer[i].jpg.frag_tab[1] =
 349                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
 350                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 351                                 SetPageReserved(virt_to_page(mem + off));
 352                 } else {
 353                         /* jpg_bufsize is already page aligned */
 354                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 355                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 356                                 if (mem == NULL) {
 357                                         dprintk(1,
 358                                                 KERN_ERR
 359                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
 360                                                 ZR_DEVNAME(zr), __func__, i);
 361                                         jpg_fbuffer_free(fh);
 362                                         return -ENOBUFS;
 363                                 }
 364
 365                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
 366                                         cpu_to_le32(virt_to_bus(mem));
 367                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
 368                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
 369                                 SetPageReserved(virt_to_page(mem));
 370                         }
 371
 372                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
 373                 }
 374         }
 375
 376         dprintk(4,
 377                 KERN_DEBUG "%s: %s - %d KB allocated\n",
 378                 ZR_DEVNAME(zr), __func__,
 379                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
 380
 381         fh->buffers.allocated = 1;
 382
 383         return 0;
 384 }
 385
 386 /* free the MJPEG grab buffers */
 387 static void jpg_fbuffer_free(struct zoran_fh *fh)
 388 {
 389         struct zoran *zr = fh->zr;
 390         int i, j, off;
 391         unsigned char *mem;
 392         __le32 frag_tab;
 393         struct zoran_buffer *buffer;
 394
 395         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
 396
 397         for (i = 0, buffer = &fh->buffers.buffer[0];
 398              i < fh->buffers.num_buffers; i++, buffer++) {
 399                 if (!buffer->jpg.frag_tab)
 400                         continue;
 401
 402                 if (fh->buffers.need_contiguous) {
 403                         frag_tab = buffer->jpg.frag_tab[0];
 404
 405                         if (frag_tab) {
 406                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
 407                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 408                                         ClearPageReserved(virt_to_page(mem + off));
 409                                 kfree(mem);
 410                                 buffer->jpg.frag_tab[0] = 0;
 411                                 buffer->jpg.frag_tab[1] = 0;
 412                         }
 413                 } else {
 414                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 415                                 frag_tab = buffer->jpg.frag_tab[2 * j];
 416
 417                                 if (!frag_tab)
 418                                         break;
 419                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
 420                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
 421                                 buffer->jpg.frag_tab[2 * j] = 0;
 422                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
 423                         }
 424                 }
 425
 426                 free_page((unsigned long)buffer->jpg.frag_tab);
 427                 buffer->jpg.frag_tab = NULL;
 428         }
 429
 430         fh->buffers.allocated = 0;
 431 }
 432
 433 /*
 434  *   V4L Buffer grabbing
 435  */
 436
 437 static int
 438 zoran_v4l_set_format (struct zoran_fh           *fh,
 439                       int                        width,
 440                       int                        height,
 441                       const struct zoran_format *format)
 442 {
 443         struct zoran *zr = fh->zr;
 444         int bpp;
 445
 446         /* Check size and format of the grab wanted */
 447
 448         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 449             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 450                 dprintk(1,
 451                         KERN_ERR
 452                         "%s: %s - wrong frame size (%dx%d)\n",
 453                         ZR_DEVNAME(zr), __func__, width, height);
 454                 return -EINVAL;
 455         }
 456
 457         bpp = (format->depth + 7) / 8;
 458
 459         /* Check against available buffer size */
 460         if (height * width * bpp > fh->buffers.buffer_size) {
 461                 dprintk(1,
 462                         KERN_ERR
 463                         "%s: %s - video buffer size (%d kB) is too small\n",
 464                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
 465                 return -EINVAL;
 466         }
 467
 468         /* The video front end needs 4-byte alinged line sizes */
 469
 470         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 471                 dprintk(1,
 472                         KERN_ERR
 473                         "%s: %s - wrong frame alignment\n",
 474                         ZR_DEVNAME(zr), __func__);
 475                 return -EINVAL;
 476         }
 477
 478         fh->v4l_settings.width = width;
 479         fh->v4l_settings.height = height;
 480         fh->v4l_settings.format = format;
 481         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 482
 483         return 0;
 484 }
 485
 486 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
 487 {
 488         struct zoran *zr = fh->zr;
 489         unsigned long flags;
 490         int res = 0;
 491
 492         if (!fh->buffers.allocated) {
 493                 dprintk(1,
 494                         KERN_ERR
 495                         "%s: %s - buffers not yet allocated\n",
 496                         ZR_DEVNAME(zr), __func__);
 497                 res = -ENOMEM;
 498         }
 499
 500         /* No grabbing outside the buffer range! */
 501         if (num >= fh->buffers.num_buffers || num < 0) {
 502                 dprintk(1,
 503                         KERN_ERR
 504                         "%s: %s - buffer %d is out of range\n",
 505                         ZR_DEVNAME(zr), __func__, num);
 506                 res = -EINVAL;
 507         }
 508
 509         spin_lock_irqsave(&zr->spinlock, flags);
 510
 511         if (fh->buffers.active == ZORAN_FREE) {
 512                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 513                         zr->v4l_buffers = fh->buffers;
 514                         fh->buffers.active = ZORAN_ACTIVE;
 515                 } else {
 516                         dprintk(1,
 517                                 KERN_ERR
 518                                 "%s: %s - another session is already capturing\n",
 519                                 ZR_DEVNAME(zr), __func__);
 520                         res = -EBUSY;
 521                 }
 522         }
 523
 524         /* make sure a grab isn't going on currently with this buffer */
 525         if (!res) {
 526                 switch (zr->v4l_buffers.buffer[num].state) {
 527                 default:
 528                 case BUZ_STATE_PEND:
 529                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 530                                 fh->buffers.active = ZORAN_FREE;
 531                                 zr->v4l_buffers.allocated = 0;
 532                         }
 533                         res = -EBUSY;   /* what are you doing? */
 534                         break;
 535                 case BUZ_STATE_DONE:
 536                         dprintk(2,
 537                                 KERN_WARNING
 538                                 "%s: %s - queueing buffer %d in state DONE!?\n",
 539                                 ZR_DEVNAME(zr), __func__, num);
 540                 case BUZ_STATE_USER:
 541                         /* since there is at least one unused buffer there's room for at least
 542                          * one more pend[] entry */
 543                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
 544                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 545                         zr->v4l_buffers.buffer[num].bs.length =
 546                             fh->v4l_settings.bytesperline *
 547                             zr->v4l_settings.height;
 548                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
 549                         break;
 550                 }
 551         }
 552
 553         spin_unlock_irqrestore(&zr->spinlock, flags);
 554
 555         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 556                 zr->v4l_buffers.active = fh->buffers.active;
 557
 558         return res;
 559 }
 560
 561 /*
 562  * Sync on a V4L buffer
 563  */
 564
 565 static int v4l_sync(struct zoran_fh *fh, int frame)
 566 {
 567         struct zoran *zr = fh->zr;
 568         unsigned long flags;
 569
 570         if (fh->buffers.active == ZORAN_FREE) {
 571                 dprintk(1,
 572                         KERN_ERR
 573                         "%s: %s - no grab active for this session\n",
 574                         ZR_DEVNAME(zr), __func__);
 575                 return -EINVAL;
 576         }
 577
 578         /* check passed-in frame number */
 579         if (frame >= fh->buffers.num_buffers || frame < 0) {
 580                 dprintk(1,
 581                         KERN_ERR "%s: %s - frame %d is invalid\n",
 582                         ZR_DEVNAME(zr), __func__, frame);
 583                 return -EINVAL;
 584         }
 585
 586         /* Check if is buffer was queued at all */
 587         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 588                 dprintk(1,
 589                         KERN_ERR
 590                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
 591                         ZR_DEVNAME(zr), __func__);
 592                 return -EPROTO;
 593         }
 594
 595         /* wait on this buffer to get ready */
 596         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 597                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
 598                 return -ETIME;
 599         if (signal_pending(current))
 600                 return -ERESTARTSYS;
 601
 602         /* buffer should now be in BUZ_STATE_DONE */
 603         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 604                 dprintk(2,
 605                         KERN_ERR "%s: %s - internal state error\n",
 606                         ZR_DEVNAME(zr), __func__);
 607
 608         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 609         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 610
 611         spin_lock_irqsave(&zr->spinlock, flags);
 612
 613         /* Check if streaming capture has finished */
 614         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 615                 zr36057_set_memgrab(zr, 0);
 616                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 617                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
 618                         zr->v4l_buffers.allocated = 0;
 619                 }
 620         }
 621
 622         spin_unlock_irqrestore(&zr->spinlock, flags);
 623
 624         return 0;
 625 }
 626
 627 /*
 628  *   Queue a MJPEG buffer for capture/playback
 629  */
 630
 631 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
 632                                  enum zoran_codec_mode mode)
 633 {
 634         struct zoran *zr = fh->zr;
 635         unsigned long flags;
 636         int res = 0;
 637
 638         /* Check if buffers are allocated */
 639         if (!fh->buffers.allocated) {
 640                 dprintk(1,
 641                         KERN_ERR
 642                         "%s: %s - buffers not yet allocated\n",
 643                         ZR_DEVNAME(zr), __func__);
 644                 return -ENOMEM;
 645         }
 646
 647         /* No grabbing outside the buffer range! */
 648         if (num >= fh->buffers.num_buffers || num < 0) {
 649                 dprintk(1,
 650                         KERN_ERR
 651                         "%s: %s - buffer %d out of range\n",
 652                         ZR_DEVNAME(zr), __func__, num);
 653                 return -EINVAL;
 654         }
 655
 656         /* what is the codec mode right now? */
 657         if (zr->codec_mode == BUZ_MODE_IDLE) {
 658                 zr->jpg_settings = fh->jpg_settings;
 659         } else if (zr->codec_mode != mode) {
 660                 /* wrong codec mode active - invalid */
 661                 dprintk(1,
 662                         KERN_ERR
 663                         "%s: %s - codec in wrong mode\n",
 664                         ZR_DEVNAME(zr), __func__);
 665                 return -EINVAL;
 666         }
 667
 668         if (fh->buffers.active == ZORAN_FREE) {
 669                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 670                         zr->jpg_buffers = fh->buffers;
 671                         fh->buffers.active = ZORAN_ACTIVE;
 672                 } else {
 673                         dprintk(1,
 674                                 KERN_ERR
 675                                 "%s: %s - another session is already capturing\n",
 676                                 ZR_DEVNAME(zr), __func__);
 677                         res = -EBUSY;
 678                 }
 679         }
 680
 681         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 682                 /* Ok load up the jpeg codec */
 683                 zr36057_enable_jpg(zr, mode);
 684         }
 685
 686         spin_lock_irqsave(&zr->spinlock, flags);
 687
 688         if (!res) {
 689                 switch (zr->jpg_buffers.buffer[num].state) {
 690                 case BUZ_STATE_DONE:
 691                         dprintk(2,
 692                                 KERN_WARNING
 693                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
 694                                 ZR_DEVNAME(zr), __func__);
 695                 case BUZ_STATE_USER:
 696                         /* since there is at least one unused buffer there's room for at
 697                          *least one more pend[] entry */
 698                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
 699                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 700                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
 701                         zoran_feed_stat_com(zr);
 702                         break;
 703                 default:
 704                 case BUZ_STATE_DMA:
 705                 case BUZ_STATE_PEND:
 706                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 707                                 fh->buffers.active = ZORAN_FREE;
 708                                 zr->jpg_buffers.allocated = 0;
 709                         }
 710                         res = -EBUSY;   /* what are you doing? */
 711                         break;
 712                 }
 713         }
 714
 715         spin_unlock_irqrestore(&zr->spinlock, flags);
 716
 717         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
 718                 zr->jpg_buffers.active = fh->buffers.active;
 719
 720         return res;
 721 }
 722
 723 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
 724 {
 725         struct zoran *zr = fh->zr;
 726         int res = 0;
 727
 728         /* Does the user want to stop streaming? */
 729         if (frame < 0) {
 730                 if (zr->codec_mode == mode) {
 731                         if (fh->buffers.active == ZORAN_FREE) {
 732                                 dprintk(1,
 733                                         KERN_ERR
 734                                         "%s: %s(-1) - session not active\n",
 735                                         ZR_DEVNAME(zr), __func__);
 736                                 return -EINVAL;
 737                         }
 738                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
 739                         zr->jpg_buffers.allocated = 0;
 740                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 741                         return 0;
 742                 } else {
 743                         dprintk(1,
 744                                 KERN_ERR
 745                                 "%s: %s - stop streaming but not in streaming mode\n",
 746                                 ZR_DEVNAME(zr), __func__);
 747                         return -EINVAL;
 748                 }
 749         }
 750
 751         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
 752                 return res;
 753
 754         /* Start the jpeg codec when the first frame is queued  */
 755         if (!res && zr->jpg_que_head == 1)
 756                 jpeg_start(zr);
 757
 758         return res;
 759 }
 760
 761 /*
 762  *   Sync on a MJPEG buffer
 763  */
 764
 765 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
 766 {
 767         struct zoran *zr = fh->zr;
 768         unsigned long flags;
 769         int frame;
 770
 771         if (fh->buffers.active == ZORAN_FREE) {
 772                 dprintk(1,
 773                         KERN_ERR
 774                         "%s: %s - capture is not currently active\n",
 775                         ZR_DEVNAME(zr), __func__);
 776                 return -EINVAL;
 777         }
 778         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
 779             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
 780                 dprintk(1,
 781                         KERN_ERR
 782                         "%s: %s - codec not in streaming mode\n",
 783                         ZR_DEVNAME(zr), __func__);
 784                 return -EINVAL;
 785         }
 786         if (!wait_event_interruptible_timeout(zr->jpg_capq,
 787                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
 788                          zr->jpg_dma_tail == zr->jpg_dma_head),
 789                         10*HZ)) {
 790                 int isr;
 791
 792                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
 793                 udelay(1);
 794                 zr->codec->control(zr->codec, CODEC_G_STATUS,
 795                                            sizeof(isr), &isr);
 796                 dprintk(1,
 797                         KERN_ERR
 798                         "%s: %s - timeout: codec isr=0x%02x\n",
 799                         ZR_DEVNAME(zr), __func__, isr);
 800
 801                 return -ETIME;
 802
 803         }
 804         if (signal_pending(current))
 805                 return -ERESTARTSYS;
 806
 807         spin_lock_irqsave(&zr->spinlock, flags);
 808
 809         if (zr->jpg_dma_tail != zr->jpg_dma_head)
 810                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
 811         else
 812                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
 813
 814         /* buffer should now be in BUZ_STATE_DONE */
 815         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
 816                 dprintk(2,
 817                         KERN_ERR "%s: %s - internal state error\n",
 818                         ZR_DEVNAME(zr), __func__);
 819
 820         *bs = zr->jpg_buffers.buffer[frame].bs;
 821         bs->frame = frame;
 822         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
 823         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
 824
 825         spin_unlock_irqrestore(&zr->spinlock, flags);
 826
 827         return 0;
 828 }
 829
 830 static void zoran_open_init_session(struct zoran_fh *fh)
 831 {
 832         int i;
 833         struct zoran *zr = fh->zr;
 834
 835         /* Per default, map the V4L Buffers */
 836         map_mode_raw(fh);
 837
 838         /* take over the card's current settings */
 839         fh->overlay_settings = zr->overlay_settings;
 840         fh->overlay_settings.is_set = 0;
 841         fh->overlay_settings.format = zr->overlay_settings.format;
 842         fh->overlay_active = ZORAN_FREE;
 843
 844         /* v4l settings */
 845         fh->v4l_settings = zr->v4l_settings;
 846         /* jpg settings */
 847         fh->jpg_settings = zr->jpg_settings;
 848
 849         /* buffers */
 850         memset(&fh->buffers, 0, sizeof(fh->buffers));
 851         for (i = 0; i < MAX_FRAME; i++) {
 852                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
 853                 fh->buffers.buffer[i].bs.frame = i;
 854         }
 855         fh->buffers.allocated = 0;
 856         fh->buffers.active = ZORAN_FREE;
 857 }
 858
 859 static void zoran_close_end_session(struct zoran_fh *fh)
 860 {
 861         struct zoran *zr = fh->zr;
 862
 863         /* overlay */
 864         if (fh->overlay_active != ZORAN_FREE) {
 865                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
 866                 zr->v4l_overlay_active = 0;
 867                 if (!zr->v4l_memgrab_active)
 868                         zr36057_overlay(zr, 0);
 869                 zr->overlay_mask = NULL;
 870         }
 871
 872         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
 873                 /* v4l capture */
 874                 if (fh->buffers.active != ZORAN_FREE) {
 875                         unsigned long flags;
 876
 877                         spin_lock_irqsave(&zr->spinlock, flags);
 878                         zr36057_set_memgrab(zr, 0);
 879                         zr->v4l_buffers.allocated = 0;
 880                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
 881                         spin_unlock_irqrestore(&zr->spinlock, flags);
 882                 }
 883
 884                 /* v4l buffers */
 885                 if (fh->buffers.allocated)
 886                         v4l_fbuffer_free(fh);
 887         } else {
 888                 /* jpg capture */
 889                 if (fh->buffers.active != ZORAN_FREE) {
 890                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 891                         zr->jpg_buffers.allocated = 0;
 892                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
 893                 }
 894
 895                 /* jpg buffers */
 896                 if (fh->buffers.allocated)
 897                         jpg_fbuffer_free(fh);
 898         }
 899 }
 900
 901 /*
 902  *   Open a zoran card. Right now the flags stuff is just playing
 903  */
 904
 905 static int zoran_open(struct file *file)
 906 {
 907         struct zoran *zr = video_drvdata(file);
 908         struct zoran_fh *fh;
 909         int res, first_open = 0;
 910
 911         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 912                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 913
 914         mutex_lock(&zr->other_lock);
 915
 916         if (zr->user >= 2048) {
 917                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 918                         ZR_DEVNAME(zr), zr->user);
 919                 res = -EBUSY;
 920                 goto fail_unlock;
 921         }
 922
 923         /* now, create the open()-specific file_ops struct */
 924         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 925         if (!fh) {
 926                 dprintk(1,
 927                         KERN_ERR
 928                         "%s: %s - allocation of zoran_fh failed\n",
 929                         ZR_DEVNAME(zr), __func__);
 930                 res = -ENOMEM;
 931                 goto fail_unlock;
 932         }
 933         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 934          * on norm-change! */
 935         fh->overlay_mask =
 936             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
 937         if (!fh->overlay_mask) {
 938                 dprintk(1,
 939                         KERN_ERR
 940                         "%s: %s - allocation of overlay_mask failed\n",
 941                         ZR_DEVNAME(zr), __func__);
 942                 res = -ENOMEM;
 943                 goto fail_fh;
 944         }
 945
 946         if (zr->user++ == 0)
 947                 first_open = 1;
 948
 949         /*mutex_unlock(&zr->resource_lock);*/
 950
 951         /* default setup - TODO: look at flags */
 952         if (first_open) {       /* First device open */
 953                 zr36057_restart(zr);
 954                 zoran_open_init_params(zr);
 955                 zoran_init_hardware(zr);
 956
 957                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
 958         }
 959
 960         /* set file_ops stuff */
 961         file->private_data = fh;
 962         fh->zr = zr;
 963         zoran_open_init_session(fh);
 964         mutex_unlock(&zr->other_lock);
 965
 966         return 0;
 967
 968 fail_fh:
 969         kfree(fh);
 970 fail_unlock:
 971         mutex_unlock(&zr->other_lock);
 972
 973         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 974                 ZR_DEVNAME(zr), res, zr->user);
 975
 976         return res;
 977 }
 978
 979 static int
 980 zoran_close(struct file  *file)
 981 {
 982         struct zoran_fh *fh = file->private_data;
 983         struct zoran *zr = fh->zr;
 984
 985         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
 986                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
 987
 988         /* kernel locks (fs/device.c), so don't do that ourselves
 989          * (prevents deadlocks) */
 990         mutex_lock(&zr->other_lock);
 991
 992         zoran_close_end_session(fh);
 993
 994         if (zr->user-- == 1) {  /* Last process */
 995                 /* Clean up JPEG process */
 996                 wake_up_interruptible(&zr->jpg_capq);
 997                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 998                 zr->jpg_buffers.allocated = 0;
 999                 zr->jpg_buffers.active = ZORAN_FREE;
1000
1001                 /* disable interrupts */
1002                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1003
1004                 if (zr36067_debug > 1)
1005                         print_interrupts(zr);
1006
1007                 /* Overlay off */
1008                 zr->v4l_overlay_active = 0;
1009                 zr36057_overlay(zr, 0);
1010                 zr->overlay_mask = NULL;
1011
1012                 /* capture off */
1013                 wake_up_interruptible(&zr->v4l_capq);
1014                 zr36057_set_memgrab(zr, 0);
1015                 zr->v4l_buffers.allocated = 0;
1016                 zr->v4l_buffers.active = ZORAN_FREE;
1017                 zoran_set_pci_master(zr, 0);
1018
1019                 if (!pass_through) {    /* Switch to color bar */
1020                         decoder_call(zr, video, s_stream, 0);
1021                         encoder_call(zr, video, s_routing, 2, 0, 0);
1022                 }
1023         }
1024         mutex_unlock(&zr->other_lock);
1025
1026         file->private_data = NULL;
1027         kfree(fh->overlay_mask);
1028         kfree(fh);
1029
1030         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1031
1032         return 0;
1033 }
1034
1035
1036 static ssize_t
1037 zoran_read (struct file *file,
1038             char        __user *data,
1039             size_t       count,
1040             loff_t      *ppos)
1041 {
1042         /* we simply don't support read() (yet)... */
1043
1044         return -EINVAL;
1045 }
1046
1047 static ssize_t
1048 zoran_write (struct file *file,
1049              const char  __user *data,
1050              size_t       count,
1051              loff_t      *ppos)
1052 {
1053         /* ...and the same goes for write() */
1054
1055         return -EINVAL;
1056 }
1057
1058 static int setup_fbuffer(struct zoran_fh *fh,
1059                void                      *base,
1060                const struct zoran_format *fmt,
1061                int                        width,
1062                int                        height,
1063                int                        bytesperline)
1064 {
1065         struct zoran *zr = fh->zr;
1066
1067         /* (Ronald) v4l/v4l2 guidelines */
1068         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1069                 return -EPERM;
1070
1071         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1072            ALi Magik (that needs very low latency while the card needs a
1073            higher value always) */
1074
1075         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1076                 return -ENXIO;
1077
1078         /* we need a bytesperline value, even if not given */
1079         if (!bytesperline)
1080                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1081
1082 #if 0
1083         if (zr->overlay_active) {
1084                 /* dzjee... stupid users... don't even bother to turn off
1085                  * overlay before changing the memory location...
1086                  * normally, we would return errors here. However, one of
1087                  * the tools that does this is... xawtv! and since xawtv
1088                  * is used by +/- 99% of the users, we'd rather be user-
1089                  * friendly and silently do as if nothing went wrong */
1090                 dprintk(3,
1091                         KERN_ERR
1092                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1093                         ZR_DEVNAME(zr), __func__);
1094                 zr36057_overlay(zr, 0);
1095         }
1096 #endif
1097
1098         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1099                 dprintk(1,
1100                         KERN_ERR
1101                         "%s: %s - no valid overlay format given\n",
1102                         ZR_DEVNAME(zr), __func__);
1103                 return -EINVAL;
1104         }
1105         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1106                 dprintk(1,
1107                         KERN_ERR
1108                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1109                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1110                 return -EINVAL;
1111         }
1112         if (bytesperline & 3) {
1113                 dprintk(1,
1114                         KERN_ERR
1115                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1116                         ZR_DEVNAME(zr), __func__, bytesperline);
1117                 return -EINVAL;
1118         }
1119
1120         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1121         zr->vbuf_height = height;
1122         zr->vbuf_width = width;
1123         zr->vbuf_depth = fmt->depth;
1124         zr->overlay_settings.format = fmt;
1125         zr->vbuf_bytesperline = bytesperline;
1126
1127         /* The user should set new window parameters */
1128         zr->overlay_settings.is_set = 0;
1129
1130         return 0;
1131 }
1132
1133
1134 static int setup_window(struct zoran_fh *fh,
1135                         int x,
1136                         int y,
1137                         int width,
1138                         int height,
1139                         struct v4l2_clip __user *clips,
1140                         unsigned int clipcount,
1141                         void __user *bitmap)
1142 {
1143         struct zoran *zr = fh->zr;
1144         struct v4l2_clip *vcp = NULL;
1145         int on, end;
1146
1147
1148         if (!zr->vbuf_base) {
1149                 dprintk(1,
1150                         KERN_ERR
1151                         "%s: %s - frame buffer has to be set first\n",
1152                         ZR_DEVNAME(zr), __func__);
1153                 return -EINVAL;
1154         }
1155
1156         if (!fh->overlay_settings.format) {
1157                 dprintk(1,
1158                         KERN_ERR
1159                         "%s: %s - no overlay format set\n",
1160                         ZR_DEVNAME(zr), __func__);
1161                 return -EINVAL;
1162         }
1163
1164         if (clipcount > 2048) {
1165                 dprintk(1,
1166                         KERN_ERR
1167                         "%s: %s - invalid clipcount\n",
1168                          ZR_DEVNAME(zr), __func__);
1169                 return -EINVAL;
1170         }
1171
1172         /*
1173          * The video front end needs 4-byte alinged line sizes, we correct that
1174          * silently here if necessary
1175          */
1176         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1177                 end = (x + width) & ~1; /* round down */
1178                 x = (x + 1) & ~1;       /* round up */
1179                 width = end - x;
1180         }
1181
1182         if (zr->vbuf_depth == 24) {
1183                 end = (x + width) & ~3; /* round down */
1184                 x = (x + 3) & ~3;       /* round up */
1185                 width = end - x;
1186         }
1187
1188         if (width > BUZ_MAX_WIDTH)
1189                 width = BUZ_MAX_WIDTH;
1190         if (height > BUZ_MAX_HEIGHT)
1191                 height = BUZ_MAX_HEIGHT;
1192
1193         /* Check for invalid parameters */
1194         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1195             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1196                 dprintk(1,
1197                         KERN_ERR
1198                         "%s: %s - width = %d or height = %d invalid\n",
1199                         ZR_DEVNAME(zr), __func__, width, height);
1200                 return -EINVAL;
1201         }
1202
1203         fh->overlay_settings.x = x;
1204         fh->overlay_settings.y = y;
1205         fh->overlay_settings.width = width;
1206         fh->overlay_settings.height = height;
1207         fh->overlay_settings.clipcount = clipcount;
1208
1209         /*
1210          * If an overlay is running, we have to switch it off
1211          * and switch it on again in order to get the new settings in effect.
1212          *
1213          * We also want to avoid that the overlay mask is written
1214          * when an overlay is running.
1215          */
1216
1217         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1218             zr->overlay_active != ZORAN_FREE &&
1219             fh->overlay_active != ZORAN_FREE;
1220         if (on)
1221                 zr36057_overlay(zr, 0);
1222
1223         /*
1224          *   Write the overlay mask if clips are wanted.
1225          *   We prefer a bitmap.
1226          */
1227         if (bitmap) {
1228                 /* fake value - it just means we want clips */
1229                 fh->overlay_settings.clipcount = 1;
1230
1231                 if (copy_from_user(fh->overlay_mask, bitmap,
1232                                    (width * height + 7) / 8)) {
1233                         return -EFAULT;
1234                 }
1235         } else if (clipcount) {
1236                 /* write our own bitmap from the clips */
1237                 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1238                 if (vcp == NULL) {
1239                         dprintk(1,
1240                                 KERN_ERR
1241                                 "%s: %s - Alloc of clip mask failed\n",
1242                                 ZR_DEVNAME(zr), __func__);
1243                         return -ENOMEM;
1244                 }
1245                 if (copy_from_user
1246                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1247                         vfree(vcp);
1248                         return -EFAULT;
1249                 }
1250                 write_overlay_mask(fh, vcp, clipcount);
1251                 vfree(vcp);
1252         }
1253
1254         fh->overlay_settings.is_set = 1;
1255         if (fh->overlay_active != ZORAN_FREE &&
1256             zr->overlay_active != ZORAN_FREE)
1257                 zr->overlay_settings = fh->overlay_settings;
1258
1259         if (on)
1260                 zr36057_overlay(zr, 1);
1261
1262         /* Make sure the changes come into effect */
1263         return wait_grab_pending(zr);
1264 }
1265
1266 static int setup_overlay(struct zoran_fh *fh, int on)
1267 {
1268         struct zoran *zr = fh->zr;
1269
1270         /* If there is nothing to do, return immediately */
1271         if ((on && fh->overlay_active != ZORAN_FREE) ||
1272             (!on && fh->overlay_active == ZORAN_FREE))
1273                 return 0;
1274
1275         /* check whether we're touching someone else's overlay */
1276         if (on && zr->overlay_active != ZORAN_FREE &&
1277             fh->overlay_active == ZORAN_FREE) {
1278                 dprintk(1,
1279                         KERN_ERR
1280                         "%s: %s - overlay is already active for another session\n",
1281                         ZR_DEVNAME(zr), __func__);
1282                 return -EBUSY;
1283         }
1284         if (!on && zr->overlay_active != ZORAN_FREE &&
1285             fh->overlay_active == ZORAN_FREE) {
1286                 dprintk(1,
1287                         KERN_ERR
1288                         "%s: %s - you cannot cancel someone else's session\n",
1289                         ZR_DEVNAME(zr), __func__);
1290                 return -EPERM;
1291         }
1292
1293         if (on == 0) {
1294                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1295                 zr->v4l_overlay_active = 0;
1296                 /* When a grab is running, the video simply
1297                  * won't be switched on any more */
1298                 if (!zr->v4l_memgrab_active)
1299                         zr36057_overlay(zr, 0);
1300                 zr->overlay_mask = NULL;
1301         } else {
1302                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1303                         dprintk(1,
1304                                 KERN_ERR
1305                                 "%s: %s - buffer or window not set\n",
1306                                 ZR_DEVNAME(zr), __func__);
1307                         return -EINVAL;
1308                 }
1309                 if (!fh->overlay_settings.format) {
1310                         dprintk(1,
1311                                 KERN_ERR
1312                                 "%s: %s - no overlay format set\n",
1313                                 ZR_DEVNAME(zr), __func__);
1314                         return -EINVAL;
1315                 }
1316                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1317                 zr->v4l_overlay_active = 1;
1318                 zr->overlay_mask = fh->overlay_mask;
1319                 zr->overlay_settings = fh->overlay_settings;
1320                 if (!zr->v4l_memgrab_active)
1321                         zr36057_overlay(zr, 1);
1322                 /* When a grab is running, the video will be
1323                  * switched on when grab is finished */
1324         }
1325
1326         /* Make sure the changes come into effect */
1327         return wait_grab_pending(zr);
1328 }
1329
1330 /* get the status of a buffer in the clients buffer queue */
1331 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1332                                     struct v4l2_buffer *buf, int num)
1333 {
1334         struct zoran *zr = fh->zr;
1335         unsigned long flags;
1336
1337         buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1338
1339         switch (fh->map_mode) {
1340         case ZORAN_MAP_MODE_RAW:
1341                 /* check range */
1342                 if (num < 0 || num >= fh->buffers.num_buffers ||
1343                     !fh->buffers.allocated) {
1344                         dprintk(1,
1345                                 KERN_ERR
1346                                 "%s: %s - wrong number or buffers not allocated\n",
1347                                 ZR_DEVNAME(zr), __func__);
1348                         return -EINVAL;
1349                 }
1350
1351                 spin_lock_irqsave(&zr->spinlock, flags);
1352                 dprintk(3,
1353                         KERN_DEBUG
1354                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1355                         ZR_DEVNAME(zr), __func__,
1356                         "FAL"[fh->buffers.active], num,
1357                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1358                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1359                 spin_unlock_irqrestore(&zr->spinlock, flags);
1360
1361                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1362                 buf->length = fh->buffers.buffer_size;
1363
1364                 /* get buffer */
1365                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1366                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1367                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1368                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1369                         buf->flags |= V4L2_BUF_FLAG_DONE;
1370                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1371                 } else {
1372                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1373                 }
1374
1375                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1376                         buf->field = V4L2_FIELD_TOP;
1377                 else
1378                         buf->field = V4L2_FIELD_INTERLACED;
1379
1380                 break;
1381
1382         case ZORAN_MAP_MODE_JPG_REC:
1383         case ZORAN_MAP_MODE_JPG_PLAY:
1384
1385                 /* check range */
1386                 if (num < 0 || num >= fh->buffers.num_buffers ||
1387                     !fh->buffers.allocated) {
1388                         dprintk(1,
1389                                 KERN_ERR
1390                                 "%s: %s - wrong number or buffers not allocated\n",
1391                                 ZR_DEVNAME(zr), __func__);
1392                         return -EINVAL;
1393                 }
1394
1395                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1396                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1397                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1398                 buf->length = fh->buffers.buffer_size;
1399
1400                 /* these variables are only written after frame has been captured */
1401                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1402                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1403                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1404                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1405                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1406                         buf->flags |= V4L2_BUF_FLAG_DONE;
1407                 } else {
1408                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1409                 }
1410
1411                 /* which fields are these? */
1412                 if (fh->jpg_settings.TmpDcm != 1)
1413                         buf->field = fh->jpg_settings.odd_even ?
1414                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1415                 else
1416                         buf->field = fh->jpg_settings.odd_even ?
1417                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1418
1419                 break;
1420
1421         default:
1422
1423                 dprintk(5,
1424                         KERN_ERR
1425                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1426                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1427                 return -EINVAL;
1428         }
1429
1430         buf->memory = V4L2_MEMORY_MMAP;
1431         buf->index = num;
1432         buf->m.offset = buf->length * num;
1433
1434         return 0;
1435 }
1436
1437 static int
1438 zoran_set_norm (struct zoran *zr,
1439                 v4l2_std_id norm)
1440 {
1441         int on;
1442
1443         if (zr->v4l_buffers.active != ZORAN_FREE ||
1444             zr->jpg_buffers.active != ZORAN_FREE) {
1445                 dprintk(1,
1446                         KERN_WARNING
1447                         "%s: %s called while in playback/capture mode\n",
1448                         ZR_DEVNAME(zr), __func__);
1449                 return -EBUSY;
1450         }
1451
1452         if (!(norm & zr->card.norms)) {
1453                 dprintk(1,
1454                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1455                         ZR_DEVNAME(zr), __func__, norm);
1456                 return -EINVAL;
1457         }
1458
1459         if (norm & V4L2_STD_SECAM)
1460                 zr->timing = zr->card.tvn[2];
1461         else if (norm & V4L2_STD_NTSC)
1462                 zr->timing = zr->card.tvn[1];
1463         else
1464                 zr->timing = zr->card.tvn[0];
1465
1466         /* We switch overlay off and on since a change in the
1467          * norm needs different VFE settings */
1468         on = zr->overlay_active && !zr->v4l_memgrab_active;
1469         if (on)
1470                 zr36057_overlay(zr, 0);
1471
1472         decoder_call(zr, video, s_std, norm);
1473         encoder_call(zr, video, s_std_output, norm);
1474
1475         if (on)
1476                 zr36057_overlay(zr, 1);
1477
1478         /* Make sure the changes come into effect */
1479         zr->norm = norm;
1480
1481         return 0;
1482 }
1483
1484 static int
1485 zoran_set_input (struct zoran *zr,
1486                  int           input)
1487 {
1488         if (input == zr->input) {
1489                 return 0;
1490         }
1491
1492         if (zr->v4l_buffers.active != ZORAN_FREE ||
1493             zr->jpg_buffers.active != ZORAN_FREE) {
1494                 dprintk(1,
1495                         KERN_WARNING
1496                         "%s: %s called while in playback/capture mode\n",
1497                         ZR_DEVNAME(zr), __func__);
1498                 return -EBUSY;
1499         }
1500
1501         if (input < 0 || input >= zr->card.inputs) {
1502                 dprintk(1,
1503                         KERN_ERR
1504                         "%s: %s - unnsupported input %d\n",
1505                         ZR_DEVNAME(zr), __func__, input);
1506                 return -EINVAL;
1507         }
1508
1509         zr->input = input;
1510
1511         decoder_call(zr, video, s_routing,
1512                         zr->card.input[input].muxsel, 0, 0);
1513
1514         return 0;
1515 }
1516
1517 /*
1518  *   ioctl routine
1519  */
1520
1521 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1522 {
1523         struct zoran_fh *fh = __fh;
1524         struct zoran *zr = fh->zr;
1525
1526         memset(cap, 0, sizeof(*cap));
1527         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1528         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1529         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1530                  pci_name(zr->pci_dev));
1531         cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1532                            V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1533         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1534         return 0;
1535 }
1536
1537 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1538 {
1539         unsigned int num, i;
1540
1541         for (num = i = 0; i < NUM_FORMATS; i++) {
1542                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1543                         strncpy(fmt->description, zoran_formats[i].name,
1544                                 sizeof(fmt->description) - 1);
1545                         /* fmt struct pre-zeroed, so adding '\0' not needed */
1546                         fmt->pixelformat = zoran_formats[i].fourcc;
1547                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1548                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1549                         return 0;
1550                 }
1551         }
1552         return -EINVAL;
1553 }
1554
1555 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1556                                             struct v4l2_fmtdesc *f)
1557 {
1558         struct zoran_fh *fh = __fh;
1559         struct zoran *zr = fh->zr;
1560
1561         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1562 }
1563
1564 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1565                                             struct v4l2_fmtdesc *f)
1566 {
1567         struct zoran_fh *fh = __fh;
1568         struct zoran *zr = fh->zr;
1569
1570         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1571 }
1572
1573 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1574                                             struct v4l2_fmtdesc *f)
1575 {
1576         struct zoran_fh *fh = __fh;
1577         struct zoran *zr = fh->zr;
1578
1579         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1580 }
1581
1582 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1583                                         struct v4l2_format *fmt)
1584 {
1585         struct zoran_fh *fh = __fh;
1586         struct zoran *zr = fh->zr;
1587
1588         mutex_lock(&zr->resource_lock);
1589
1590         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1591         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1592                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1593         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1594         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1595         if (fh->jpg_settings.TmpDcm == 1)
1596                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1597                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1598         else
1599                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1600                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1601         fmt->fmt.pix.bytesperline = 0;
1602         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1603
1604         mutex_unlock(&zr->resource_lock);
1605         return 0;
1606 }
1607
1608 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1609                                         struct v4l2_format *fmt)
1610 {
1611         struct zoran_fh *fh = __fh;
1612         struct zoran *zr = fh->zr;
1613
1614         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1615                 return zoran_g_fmt_vid_out(file, fh, fmt);
1616
1617         mutex_lock(&zr->resource_lock);
1618         fmt->fmt.pix.width = fh->v4l_settings.width;
1619         fmt->fmt.pix.height = fh->v4l_settings.height;
1620         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1621                                         fh->v4l_settings.height;
1622         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1623         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1624         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1625         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1626                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1627         else
1628                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1629         mutex_unlock(&zr->resource_lock);
1630         return 0;
1631 }
1632
1633 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1634                                         struct v4l2_format *fmt)
1635 {
1636         struct zoran_fh *fh = __fh;
1637         struct zoran *zr = fh->zr;
1638
1639         mutex_lock(&zr->resource_lock);
1640
1641         fmt->fmt.win.w.left = fh->overlay_settings.x;
1642         fmt->fmt.win.w.top = fh->overlay_settings.y;
1643         fmt->fmt.win.w.width = fh->overlay_settings.width;
1644         fmt->fmt.win.w.height = fh->overlay_settings.height;
1645         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1646                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1647         else
1648                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1649
1650         mutex_unlock(&zr->resource_lock);
1651         return 0;
1652 }
1653
1654 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1655                                         struct v4l2_format *fmt)
1656 {
1657         struct zoran_fh *fh = __fh;
1658         struct zoran *zr = fh->zr;
1659
1660         mutex_lock(&zr->resource_lock);
1661
1662         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1663                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1664         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1665                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1666         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1667                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1668         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1669                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1670
1671         mutex_unlock(&zr->resource_lock);
1672         return 0;
1673 }
1674
1675 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1676                                         struct v4l2_format *fmt)
1677 {
1678         struct zoran_fh *fh = __fh;
1679         struct zoran *zr = fh->zr;
1680         struct zoran_jpg_settings settings;
1681         int res = 0;
1682
1683         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1684                 return -EINVAL;
1685
1686         mutex_lock(&zr->resource_lock);
1687         settings = fh->jpg_settings;
1688
1689         /* we actually need to set 'real' parameters now */
1690         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1691                 settings.TmpDcm = 1;
1692         else
1693                 settings.TmpDcm = 2;
1694         settings.decimation = 0;
1695         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1696                 settings.VerDcm = 2;
1697         else
1698                 settings.VerDcm = 1;
1699         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1700                 settings.HorDcm = 4;
1701         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1702                 settings.HorDcm = 2;
1703         else
1704                 settings.HorDcm = 1;
1705         if (settings.TmpDcm == 1)
1706                 settings.field_per_buff = 2;
1707         else
1708                 settings.field_per_buff = 1;
1709
1710         if (settings.HorDcm > 1) {
1711                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1712                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1713         } else {
1714                 settings.img_x = 0;
1715                 settings.img_width = BUZ_MAX_WIDTH;
1716         }
1717
1718         /* check */
1719         res = zoran_check_jpg_settings(zr, &settings, 1);
1720         if (res)
1721                 goto tryfmt_unlock_and_return;
1722
1723         /* tell the user what we actually did */
1724         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1725         fmt->fmt.pix.height = settings.img_height * 2 /
1726                 (settings.TmpDcm * settings.VerDcm);
1727         if (settings.TmpDcm == 1)
1728                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1729                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1730         else
1731                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1732                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1733
1734         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
1735         fmt->fmt.pix.bytesperline = 0;
1736         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1737 tryfmt_unlock_and_return:
1738         mutex_unlock(&zr->resource_lock);
1739         return res;
1740 }
1741
1742 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1743                                         struct v4l2_format *fmt)
1744 {
1745         struct zoran_fh *fh = __fh;
1746         struct zoran *zr = fh->zr;
1747         int bpp;
1748         int i;
1749
1750         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1751                 return zoran_try_fmt_vid_out(file, fh, fmt);
1752
1753         mutex_lock(&zr->resource_lock);
1754
1755         for (i = 0; i < NUM_FORMATS; i++)
1756                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1757                         break;
1758
1759         if (i == NUM_FORMATS) {
1760                 mutex_unlock(&zr->resource_lock);
1761                 return -EINVAL;
1762         }
1763
1764         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1765         v4l_bound_align_image(
1766                 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1767                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
1768         mutex_unlock(&zr->resource_lock);
1769
1770         return 0;
1771 }
1772
1773 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1774                                         struct v4l2_format *fmt)
1775 {
1776         struct zoran_fh *fh = __fh;
1777         struct zoran *zr = fh->zr;
1778         int res;
1779
1780         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1781                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1782                         fmt->fmt.win.w.width,
1783                         fmt->fmt.win.w.height,
1784                         fmt->fmt.win.clipcount,
1785                         fmt->fmt.win.bitmap);
1786         mutex_lock(&zr->resource_lock);
1787         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1788                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1789                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
1790                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
1791         mutex_unlock(&zr->resource_lock);
1792         return res;
1793 }
1794
1795 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1796                                         struct v4l2_format *fmt)
1797 {
1798         struct zoran_fh *fh = __fh;
1799         struct zoran *zr = fh->zr;
1800         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1801         struct zoran_jpg_settings settings;
1802         int res = 0;
1803
1804         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1805                         fmt->fmt.pix.width, fmt->fmt.pix.height,
1806                         fmt->fmt.pix.pixelformat,
1807                         (char *) &printformat);
1808         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1809                 return -EINVAL;
1810
1811         mutex_lock(&zr->resource_lock);
1812
1813         if (fh->buffers.allocated) {
1814                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1815                         ZR_DEVNAME(zr));
1816                 res = -EBUSY;
1817                 goto sfmtjpg_unlock_and_return;
1818         }
1819
1820         settings = fh->jpg_settings;
1821
1822         /* we actually need to set 'real' parameters now */
1823         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
1824                 settings.TmpDcm = 1;
1825         else
1826                 settings.TmpDcm = 2;
1827         settings.decimation = 0;
1828         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1829                 settings.VerDcm = 2;
1830         else
1831                 settings.VerDcm = 1;
1832         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1833                 settings.HorDcm = 4;
1834         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1835                 settings.HorDcm = 2;
1836         else
1837                 settings.HorDcm = 1;
1838         if (settings.TmpDcm == 1)
1839                 settings.field_per_buff = 2;
1840         else
1841                 settings.field_per_buff = 1;
1842
1843         if (settings.HorDcm > 1) {
1844                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1845                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1846         } else {
1847                 settings.img_x = 0;
1848                 settings.img_width = BUZ_MAX_WIDTH;
1849         }
1850
1851         /* check */
1852         res = zoran_check_jpg_settings(zr, &settings, 0);
1853         if (res)
1854                 goto sfmtjpg_unlock_and_return;
1855
1856         /* it's ok, so set them */
1857         fh->jpg_settings = settings;
1858
1859         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1860         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1861
1862         /* tell the user what we actually did */
1863         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1864         fmt->fmt.pix.height = settings.img_height * 2 /
1865                 (settings.TmpDcm * settings.VerDcm);
1866         if (settings.TmpDcm == 1)
1867                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1868                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1869         else
1870                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1871                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1872         fmt->fmt.pix.bytesperline = 0;
1873         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
1874         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1875
1876 sfmtjpg_unlock_and_return:
1877         mutex_unlock(&zr->resource_lock);
1878         return res;
1879 }
1880
1881 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1882                                         struct v4l2_format *fmt)
1883 {
1884         struct zoran_fh *fh = __fh;
1885         struct zoran *zr = fh->zr;
1886         int i;
1887         int res = 0;
1888
1889         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1890                 return zoran_s_fmt_vid_out(file, fh, fmt);
1891
1892         for (i = 0; i < NUM_FORMATS; i++)
1893                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1894                         break;
1895         if (i == NUM_FORMATS) {
1896                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1897                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1898                 return -EINVAL;
1899         }
1900
1901         mutex_lock(&zr->resource_lock);
1902
1903         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1904             fh->buffers.active != ZORAN_FREE) {
1905                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1906                                 ZR_DEVNAME(zr));
1907                 res = -EBUSY;
1908                 goto sfmtv4l_unlock_and_return;
1909         }
1910         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1911                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1912         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1913                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1914
1915         map_mode_raw(fh);
1916
1917         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1918                                    &zoran_formats[i]);
1919         if (res)
1920                 goto sfmtv4l_unlock_and_return;
1921
1922         /* tell the user the results/missing stuff */
1923         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1924         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1925         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1926         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1927                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1928         else
1929                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1930
1931 sfmtv4l_unlock_and_return:
1932         mutex_unlock(&zr->resource_lock);
1933         return res;
1934 }
1935
1936 static int zoran_g_fbuf(struct file *file, void *__fh,
1937                 struct v4l2_framebuffer *fb)
1938 {
1939         struct zoran_fh *fh = __fh;
1940         struct zoran *zr = fh->zr;
1941
1942         memset(fb, 0, sizeof(*fb));
1943         mutex_lock(&zr->resource_lock);
1944         fb->base = zr->vbuf_base;
1945         fb->fmt.width = zr->vbuf_width;
1946         fb->fmt.height = zr->vbuf_height;
1947         if (zr->overlay_settings.format)
1948                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
1949         fb->fmt.bytesperline = zr->vbuf_bytesperline;
1950         mutex_unlock(&zr->resource_lock);
1951         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1952         fb->fmt.field = V4L2_FIELD_INTERLACED;
1953         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1954
1955         return 0;
1956 }
1957
1958 static int zoran_s_fbuf(struct file *file, void *__fh,
1959                 const struct v4l2_framebuffer *fb)
1960 {
1961         struct zoran_fh *fh = __fh;
1962         struct zoran *zr = fh->zr;
1963         int i, res = 0;
1964         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1965
1966         for (i = 0; i < NUM_FORMATS; i++)
1967                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1968                         break;
1969         if (i == NUM_FORMATS) {
1970                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1971                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
1972                         (char *)&printformat);
1973                 return -EINVAL;
1974         }
1975
1976         mutex_lock(&zr->resource_lock);
1977         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
1978                             fb->fmt.height, fb->fmt.bytesperline);
1979         mutex_unlock(&zr->resource_lock);
1980
1981         return res;
1982 }
1983
1984 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
1985 {
1986         struct zoran_fh *fh = __fh;
1987         struct zoran *zr = fh->zr;
1988         int res;
1989
1990         mutex_lock(&zr->resource_lock);
1991         res = setup_overlay(fh, on);
1992         mutex_unlock(&zr->resource_lock);
1993
1994         return res;
1995 }
1996
1997 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
1998
1999 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2000 {
2001         struct zoran_fh *fh = __fh;
2002         struct zoran *zr = fh->zr;
2003         int res = 0;
2004
2005         if (req->memory != V4L2_MEMORY_MMAP) {
2006                 dprintk(2,
2007                                 KERN_ERR
2008                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2009                                 ZR_DEVNAME(zr), req->memory);
2010                 return -EINVAL;
2011         }
2012
2013         if (req->count == 0)
2014                 return zoran_streamoff(file, fh, req->type);
2015
2016         mutex_lock(&zr->resource_lock);
2017         if (fh->buffers.allocated) {
2018                 dprintk(2,
2019                                 KERN_ERR
2020                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
2021                                 ZR_DEVNAME(zr));
2022                 res = -EBUSY;
2023                 goto v4l2reqbuf_unlock_and_return;
2024         }
2025
2026         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
2027             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2028                 /* control user input */
2029                 if (req->count < 2)
2030                         req->count = 2;
2031                 if (req->count > v4l_nbufs)
2032                         req->count = v4l_nbufs;
2033
2034                 /* The next mmap will map the V4L buffers */
2035                 map_mode_raw(fh);
2036                 fh->buffers.num_buffers = req->count;
2037
2038                 if (v4l_fbuffer_alloc(fh)) {
2039                         res = -ENOMEM;
2040                         goto v4l2reqbuf_unlock_and_return;
2041                 }
2042         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
2043                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2044                 /* we need to calculate size ourselves now */
2045                 if (req->count < 4)
2046                         req->count = 4;
2047                 if (req->count > jpg_nbufs)
2048                         req->count = jpg_nbufs;
2049
2050                 /* The next mmap will map the MJPEG buffers */
2051                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2052                 fh->buffers.num_buffers = req->count;
2053                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2054
2055                 if (jpg_fbuffer_alloc(fh)) {
2056                         res = -ENOMEM;
2057                         goto v4l2reqbuf_unlock_and_return;
2058                 }
2059         } else {
2060                 dprintk(1,
2061                                 KERN_ERR
2062                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2063                                 ZR_DEVNAME(zr), req->type);
2064                 res = -EINVAL;
2065                 goto v4l2reqbuf_unlock_and_return;
2066         }
2067 v4l2reqbuf_unlock_and_return:
2068         mutex_unlock(&zr->resource_lock);
2069
2070         return res;
2071 }
2072
2073 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2074 {
2075         struct zoran_fh *fh = __fh;
2076         struct zoran *zr = fh->zr;
2077         int res;
2078
2079         mutex_lock(&zr->resource_lock);
2080         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2081         mutex_unlock(&zr->resource_lock);
2082
2083         return res;
2084 }
2085
2086 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2087 {
2088         struct zoran_fh *fh = __fh;
2089         struct zoran *zr = fh->zr;
2090         int res = 0, codec_mode, buf_type;
2091
2092         mutex_lock(&zr->resource_lock);
2093
2094         switch (fh->map_mode) {
2095         case ZORAN_MAP_MODE_RAW:
2096                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2097                         dprintk(1, KERN_ERR
2098                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2099                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2100                         res = -EINVAL;
2101                         goto qbuf_unlock_and_return;
2102                 }
2103
2104                 res = zoran_v4l_queue_frame(fh, buf->index);
2105                 if (res)
2106                         goto qbuf_unlock_and_return;
2107                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2108                         zr36057_set_memgrab(zr, 1);
2109                 break;
2110
2111         case ZORAN_MAP_MODE_JPG_REC:
2112         case ZORAN_MAP_MODE_JPG_PLAY:
2113                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2114                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2115                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2116                 } else {
2117                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2118                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2119                 }
2120
2121                 if (buf->type != buf_type) {
2122                         dprintk(1, KERN_ERR
2123                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2124                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2125                         res = -EINVAL;
2126                         goto qbuf_unlock_and_return;
2127                 }
2128
2129                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2130                 if (res != 0)
2131                         goto qbuf_unlock_and_return;
2132                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2133                     fh->buffers.active == ZORAN_LOCKED)
2134                         zr36057_enable_jpg(zr, codec_mode);
2135
2136                 break;
2137
2138         default:
2139                 dprintk(1, KERN_ERR
2140                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2141                         ZR_DEVNAME(zr), buf->type);
2142                 res = -EINVAL;
2143                 break;
2144         }
2145 qbuf_unlock_and_return:
2146         mutex_unlock(&zr->resource_lock);
2147
2148         return res;
2149 }
2150
2151 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2152 {
2153         struct zoran_fh *fh = __fh;
2154         struct zoran *zr = fh->zr;
2155         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2156
2157         mutex_lock(&zr->resource_lock);
2158
2159         switch (fh->map_mode) {
2160         case ZORAN_MAP_MODE_RAW:
2161                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2162                         dprintk(1, KERN_ERR
2163                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2164                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2165                         res = -EINVAL;
2166                         goto dqbuf_unlock_and_return;
2167                 }
2168
2169                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2170                 if (file->f_flags & O_NONBLOCK &&
2171                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2172                         res = -EAGAIN;
2173                         goto dqbuf_unlock_and_return;
2174                 }
2175                 res = v4l_sync(fh, num);
2176                 if (res)
2177                         goto dqbuf_unlock_and_return;
2178                 zr->v4l_sync_tail++;
2179                 res = zoran_v4l2_buffer_status(fh, buf, num);
2180                 break;
2181
2182         case ZORAN_MAP_MODE_JPG_REC:
2183         case ZORAN_MAP_MODE_JPG_PLAY:
2184         {
2185                 struct zoran_sync bs;
2186
2187                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2188                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2189                 else
2190                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2191
2192                 if (buf->type != buf_type) {
2193                         dprintk(1, KERN_ERR
2194                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2195                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2196                         res = -EINVAL;
2197                         goto dqbuf_unlock_and_return;
2198                 }
2199
2200                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2201
2202                 if (file->f_flags & O_NONBLOCK &&
2203                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2204                         res = -EAGAIN;
2205                         goto dqbuf_unlock_and_return;
2206                 }
2207                 bs.frame = 0; /* suppress compiler warning */
2208                 res = jpg_sync(fh, &bs);
2209                 if (res)
2210                         goto dqbuf_unlock_and_return;
2211                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2212                 break;
2213         }
2214
2215         default:
2216                 dprintk(1, KERN_ERR
2217                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2218                         ZR_DEVNAME(zr), buf->type);
2219                 res = -EINVAL;
2220                 break;
2221         }
2222 dqbuf_unlock_and_return:
2223         mutex_unlock(&zr->resource_lock);
2224
2225         return res;
2226 }
2227
2228 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2229 {
2230         struct zoran_fh *fh = __fh;
2231         struct zoran *zr = fh->zr;
2232         int res = 0;
2233
2234         mutex_lock(&zr->resource_lock);
2235
2236         switch (fh->map_mode) {
2237         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2238                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2239                     fh->buffers.active != ZORAN_ACTIVE) {
2240                         res = -EBUSY;
2241                         goto strmon_unlock_and_return;
2242                 }
2243
2244                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2245                 zr->v4l_settings = fh->v4l_settings;
2246
2247                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2248                 if (!zr->v4l_memgrab_active &&
2249                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2250                         zr36057_set_memgrab(zr, 1);
2251                 }
2252                 break;
2253
2254         case ZORAN_MAP_MODE_JPG_REC:
2255         case ZORAN_MAP_MODE_JPG_PLAY:
2256                 /* what is the codec mode right now? */
2257                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2258                     fh->buffers.active != ZORAN_ACTIVE) {
2259                         res = -EBUSY;
2260                         goto strmon_unlock_and_return;
2261                 }
2262
2263                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2264
2265                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2266                         /* Start the jpeg codec when the first frame is queued  */
2267                         jpeg_start(zr);
2268                 }
2269                 break;
2270
2271         default:
2272                 dprintk(1,
2273                         KERN_ERR
2274                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2275                         ZR_DEVNAME(zr), fh->map_mode);
2276                 res = -EINVAL;
2277                 break;
2278         }
2279 strmon_unlock_and_return:
2280         mutex_unlock(&zr->resource_lock);
2281
2282         return res;
2283 }
2284
2285 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2286 {
2287         struct zoran_fh *fh = __fh;
2288         struct zoran *zr = fh->zr;
2289         int i, res = 0;
2290         unsigned long flags;
2291
2292         mutex_lock(&zr->resource_lock);
2293
2294         switch (fh->map_mode) {
2295         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2296                 if (fh->buffers.active == ZORAN_FREE &&
2297                     zr->v4l_buffers.active != ZORAN_FREE) {
2298                         res = -EPERM;   /* stay off other's settings! */
2299                         goto strmoff_unlock_and_return;
2300                 }
2301                 if (zr->v4l_buffers.active == ZORAN_FREE)
2302                         goto strmoff_unlock_and_return;
2303
2304                 spin_lock_irqsave(&zr->spinlock, flags);
2305                 /* unload capture */
2306                 if (zr->v4l_memgrab_active) {
2307
2308                         zr36057_set_memgrab(zr, 0);
2309                 }
2310
2311                 for (i = 0; i < fh->buffers.num_buffers; i++)
2312                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2313                 fh->buffers = zr->v4l_buffers;
2314
2315                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2316
2317                 zr->v4l_grab_seq = 0;
2318                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2319                 zr->v4l_sync_tail = 0;
2320
2321                 spin_unlock_irqrestore(&zr->spinlock, flags);
2322
2323                 break;
2324
2325         case ZORAN_MAP_MODE_JPG_REC:
2326         case ZORAN_MAP_MODE_JPG_PLAY:
2327                 if (fh->buffers.active == ZORAN_FREE &&
2328                     zr->jpg_buffers.active != ZORAN_FREE) {
2329                         res = -EPERM;   /* stay off other's settings! */
2330                         goto strmoff_unlock_and_return;
2331                 }
2332                 if (zr->jpg_buffers.active == ZORAN_FREE)
2333                         goto strmoff_unlock_and_return;
2334
2335                 res = jpg_qbuf(fh, -1,
2336                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2337                              BUZ_MODE_MOTION_COMPRESS :
2338                              BUZ_MODE_MOTION_DECOMPRESS);
2339                 if (res)
2340                         goto strmoff_unlock_and_return;
2341                 break;
2342         default:
2343                 dprintk(1, KERN_ERR
2344                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2345                         ZR_DEVNAME(zr), fh->map_mode);
2346                 res = -EINVAL;
2347                 break;
2348         }
2349 strmoff_unlock_and_return:
2350         mutex_unlock(&zr->resource_lock);
2351
2352         return res;
2353 }
2354
2355 static int zoran_queryctrl(struct file *file, void *__fh,
2356                                         struct v4l2_queryctrl *ctrl)
2357 {
2358         struct zoran_fh *fh = __fh;
2359         struct zoran *zr = fh->zr;
2360
2361         /* we only support hue/saturation/contrast/brightness */
2362         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2363             ctrl->id > V4L2_CID_HUE)
2364                 return -EINVAL;
2365
2366         decoder_call(zr, core, queryctrl, ctrl);
2367
2368         return 0;
2369 }
2370
2371 static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2372 {
2373         struct zoran_fh *fh = __fh;
2374         struct zoran *zr = fh->zr;
2375
2376         /* we only support hue/saturation/contrast/brightness */
2377         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2378             ctrl->id > V4L2_CID_HUE)
2379                 return -EINVAL;
2380
2381         mutex_lock(&zr->resource_lock);
2382         decoder_call(zr, core, g_ctrl, ctrl);
2383         mutex_unlock(&zr->resource_lock);
2384
2385         return 0;
2386 }
2387
2388 static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2389 {
2390         struct zoran_fh *fh = __fh;
2391         struct zoran *zr = fh->zr;
2392
2393         /* we only support hue/saturation/contrast/brightness */
2394         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2395             ctrl->id > V4L2_CID_HUE)
2396                 return -EINVAL;
2397
2398         mutex_lock(&zr->resource_lock);
2399         decoder_call(zr, core, s_ctrl, ctrl);
2400         mutex_unlock(&zr->resource_lock);
2401
2402         return 0;
2403 }
2404
2405 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2406 {
2407         struct zoran_fh *fh = __fh;
2408         struct zoran *zr = fh->zr;
2409
2410         mutex_lock(&zr->resource_lock);
2411         *std = zr->norm;
2412         mutex_unlock(&zr->resource_lock);
2413         return 0;
2414 }
2415
2416 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
2417 {
2418         struct zoran_fh *fh = __fh;
2419         struct zoran *zr = fh->zr;
2420         int res = 0;
2421
2422         mutex_lock(&zr->resource_lock);
2423         res = zoran_set_norm(zr, std);
2424         if (res)
2425                 goto sstd_unlock_and_return;
2426
2427         res = wait_grab_pending(zr);
2428 sstd_unlock_and_return:
2429         mutex_unlock(&zr->resource_lock);
2430         return res;
2431 }
2432
2433 static int zoran_enum_input(struct file *file, void *__fh,
2434                                  struct v4l2_input *inp)
2435 {
2436         struct zoran_fh *fh = __fh;
2437         struct zoran *zr = fh->zr;
2438
2439         if (inp->index >= zr->card.inputs)
2440                 return -EINVAL;
2441
2442         strncpy(inp->name, zr->card.input[inp->index].name,
2443                 sizeof(inp->name) - 1);
2444         inp->type = V4L2_INPUT_TYPE_CAMERA;
2445         inp->std = V4L2_STD_ALL;
2446
2447         /* Get status of video decoder */
2448         mutex_lock(&zr->resource_lock);
2449         decoder_call(zr, video, g_input_status, &inp->status);
2450         mutex_unlock(&zr->resource_lock);
2451         return 0;
2452 }
2453
2454 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2455 {
2456         struct zoran_fh *fh = __fh;
2457         struct zoran *zr = fh->zr;
2458
2459         mutex_lock(&zr->resource_lock);
2460         *input = zr->input;
2461         mutex_unlock(&zr->resource_lock);
2462
2463         return 0;
2464 }
2465
2466 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2467 {
2468         struct zoran_fh *fh = __fh;
2469         struct zoran *zr = fh->zr;
2470         int res;
2471
2472         mutex_lock(&zr->resource_lock);
2473         res = zoran_set_input(zr, input);
2474         if (res)
2475                 goto sinput_unlock_and_return;
2476
2477         /* Make sure the changes come into effect */
2478         res = wait_grab_pending(zr);
2479 sinput_unlock_and_return:
2480         mutex_unlock(&zr->resource_lock);
2481         return res;
2482 }
2483
2484 static int zoran_enum_output(struct file *file, void *__fh,
2485                                   struct v4l2_output *outp)
2486 {
2487         if (outp->index != 0)
2488                 return -EINVAL;
2489
2490         outp->index = 0;
2491         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2492         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2493
2494         return 0;
2495 }
2496
2497 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2498 {
2499         *output = 0;
2500
2501         return 0;
2502 }
2503
2504 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2505 {
2506         if (output != 0)
2507                 return -EINVAL;
2508
2509         return 0;
2510 }
2511
2512 /* cropping (sub-frame capture) */
2513 static int zoran_cropcap(struct file *file, void *__fh,
2514                                         struct v4l2_cropcap *cropcap)
2515 {
2516         struct zoran_fh *fh = __fh;
2517         struct zoran *zr = fh->zr;
2518         int type = cropcap->type, res = 0;
2519
2520         memset(cropcap, 0, sizeof(*cropcap));
2521         cropcap->type = type;
2522
2523         mutex_lock(&zr->resource_lock);
2524
2525         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2526             (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2527              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2528                 dprintk(1, KERN_ERR
2529                         "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
2530                         ZR_DEVNAME(zr));
2531                 res = -EINVAL;
2532                 goto cropcap_unlock_and_return;
2533         }
2534
2535         cropcap->bounds.top = cropcap->bounds.left = 0;
2536         cropcap->bounds.width = BUZ_MAX_WIDTH;
2537         cropcap->bounds.height = BUZ_MAX_HEIGHT;
2538         cropcap->defrect.top = cropcap->defrect.left = 0;
2539         cropcap->defrect.width = BUZ_MIN_WIDTH;
2540         cropcap->defrect.height = BUZ_MIN_HEIGHT;
2541 cropcap_unlock_and_return:
2542         mutex_unlock(&zr->resource_lock);
2543         return res;
2544 }
2545
2546 static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2547 {
2548         struct zoran_fh *fh = __fh;
2549         struct zoran *zr = fh->zr;
2550         int type = crop->type, res = 0;
2551
2552         memset(crop, 0, sizeof(*crop));
2553         crop->type = type;
2554
2555         mutex_lock(&zr->resource_lock);
2556
2557         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2558             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2559              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2560                 dprintk(1,
2561                         KERN_ERR
2562                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2563                         ZR_DEVNAME(zr));
2564                 res = -EINVAL;
2565                 goto gcrop_unlock_and_return;
2566         }
2567
2568         crop->c.top = fh->jpg_settings.img_y;
2569         crop->c.left = fh->jpg_settings.img_x;
2570         crop->c.width = fh->jpg_settings.img_width;
2571         crop->c.height = fh->jpg_settings.img_height;
2572
2573 gcrop_unlock_and_return:
2574         mutex_unlock(&zr->resource_lock);
2575
2576         return res;
2577 }
2578
2579 static int zoran_s_crop(struct file *file, void *__fh, const struct v4l2_crop *crop)
2580 {
2581         struct zoran_fh *fh = __fh;
2582         struct zoran *zr = fh->zr;
2583         int res = 0;
2584         struct zoran_jpg_settings settings;
2585
2586         settings = fh->jpg_settings;
2587
2588         mutex_lock(&zr->resource_lock);
2589
2590         if (fh->buffers.allocated) {
2591                 dprintk(1, KERN_ERR
2592                         "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2593                         ZR_DEVNAME(zr));
2594                 res = -EBUSY;
2595                 goto scrop_unlock_and_return;
2596         }
2597
2598         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2599             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2600              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2601                 dprintk(1, KERN_ERR
2602                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2603                         ZR_DEVNAME(zr));
2604                 res = -EINVAL;
2605                 goto scrop_unlock_and_return;
2606         }
2607
2608         /* move into a form that we understand */
2609         settings.img_x = crop->c.left;
2610         settings.img_y = crop->c.top;
2611         settings.img_width = crop->c.width;
2612         settings.img_height = crop->c.height;
2613
2614         /* check validity */
2615         res = zoran_check_jpg_settings(zr, &settings, 0);
2616         if (res)
2617                 goto scrop_unlock_and_return;
2618
2619         /* accept */
2620         fh->jpg_settings = settings;
2621
2622 scrop_unlock_and_return:
2623         mutex_unlock(&zr->resource_lock);
2624         return res;
2625 }
2626
2627 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2628                                         struct v4l2_jpegcompression *params)
2629 {
2630         struct zoran_fh *fh = __fh;
2631         struct zoran *zr = fh->zr;
2632         memset(params, 0, sizeof(*params));
2633
2634         mutex_lock(&zr->resource_lock);
2635
2636         params->quality = fh->jpg_settings.jpg_comp.quality;
2637         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2638         memcpy(params->APP_data,
2639                fh->jpg_settings.jpg_comp.APP_data,
2640                fh->jpg_settings.jpg_comp.APP_len);
2641         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2642         memcpy(params->COM_data,
2643                fh->jpg_settings.jpg_comp.COM_data,
2644                fh->jpg_settings.jpg_comp.COM_len);
2645         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2646         params->jpeg_markers =
2647             fh->jpg_settings.jpg_comp.jpeg_markers;
2648
2649         mutex_unlock(&zr->resource_lock);
2650
2651         return 0;
2652 }
2653
2654 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2655                                         const struct v4l2_jpegcompression *params)
2656 {
2657         struct zoran_fh *fh = __fh;
2658         struct zoran *zr = fh->zr;
2659         int res = 0;
2660         struct zoran_jpg_settings settings;
2661
2662         settings = fh->jpg_settings;
2663
2664         settings.jpg_comp = *params;
2665
2666         mutex_lock(&zr->resource_lock);
2667
2668         if (fh->buffers.active != ZORAN_FREE) {
2669                 dprintk(1, KERN_WARNING
2670                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2671                         ZR_DEVNAME(zr));
2672                 res = -EBUSY;
2673                 goto sjpegc_unlock_and_return;
2674         }
2675
2676         res = zoran_check_jpg_settings(zr, &settings, 0);
2677         if (res)
2678                 goto sjpegc_unlock_and_return;
2679         if (!fh->buffers.allocated)
2680                 fh->buffers.buffer_size =
2681                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2682         fh->jpg_settings.jpg_comp = settings.jpg_comp;
2683 sjpegc_unlock_and_return:
2684         mutex_unlock(&zr->resource_lock);
2685
2686         return res;
2687 }
2688
2689 static unsigned int
2690 zoran_poll (struct file *file,
2691             poll_table  *wait)
2692 {
2693         struct zoran_fh *fh = file->private_data;
2694         struct zoran *zr = fh->zr;
2695         int res = 0, frame;
2696         unsigned long flags;
2697
2698         /* we should check whether buffers are ready to be synced on
2699          * (w/o waits - O_NONBLOCK) here
2700          * if ready for read (sync), return POLLIN|POLLRDNORM,
2701          * if ready for write (sync), return POLLOUT|POLLWRNORM,
2702          * if error, return POLLERR,
2703          * if no buffers queued or so, return POLLNVAL
2704          */
2705
2706         mutex_lock(&zr->resource_lock);
2707
2708         switch (fh->map_mode) {
2709         case ZORAN_MAP_MODE_RAW:
2710                 poll_wait(file, &zr->v4l_capq, wait);
2711                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2712
2713                 spin_lock_irqsave(&zr->spinlock, flags);
2714                 dprintk(3,
2715                         KERN_DEBUG
2716                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
2717                         ZR_DEVNAME(zr), __func__,
2718                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
2719                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
2720                         zr->v4l_pend_tail, zr->v4l_pend_head);
2721                 /* Process is the one capturing? */
2722                 if (fh->buffers.active != ZORAN_FREE &&
2723                     /* Buffer ready to DQBUF? */
2724                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
2725                         res = POLLIN | POLLRDNORM;
2726                 spin_unlock_irqrestore(&zr->spinlock, flags);
2727
2728                 break;
2729
2730         case ZORAN_MAP_MODE_JPG_REC:
2731         case ZORAN_MAP_MODE_JPG_PLAY:
2732                 poll_wait(file, &zr->jpg_capq, wait);
2733                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2734
2735                 spin_lock_irqsave(&zr->spinlock, flags);
2736                 dprintk(3,
2737                         KERN_DEBUG
2738                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
2739                         ZR_DEVNAME(zr), __func__,
2740                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
2741                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
2742                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
2743                 if (fh->buffers.active != ZORAN_FREE &&
2744                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
2745                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2746                                 res = POLLIN | POLLRDNORM;
2747                         else
2748                                 res = POLLOUT | POLLWRNORM;
2749                 }
2750                 spin_unlock_irqrestore(&zr->spinlock, flags);
2751
2752                 break;
2753
2754         default:
2755                 dprintk(1,
2756                         KERN_ERR
2757                         "%s: %s - internal error, unknown map_mode=%d\n",
2758                         ZR_DEVNAME(zr), __func__, fh->map_mode);
2759                 res = POLLNVAL;
2760         }
2761
2762         mutex_unlock(&zr->resource_lock);
2763
2764         return res;
2765 }
2766
2767
2768 /*
2769  * This maps the buffers to user space.
2770  *
2771  * Depending on the state of fh->map_mode
2772  * the V4L or the MJPEG buffers are mapped
2773  * per buffer or all together
2774  *
2775  * Note that we need to connect to some
2776  * unmap signal event to unmap the de-allocate
2777  * the buffer accordingly (zoran_vm_close())
2778  */
2779
2780 static void
2781 zoran_vm_open (struct vm_area_struct *vma)
2782 {
2783         struct zoran_mapping *map = vma->vm_private_data;
2784         atomic_inc(&map->count);
2785 }
2786
2787 static void
2788 zoran_vm_close (struct vm_area_struct *vma)
2789 {
2790         struct zoran_mapping *map = vma->vm_private_data;
2791         struct zoran_fh *fh = map->fh;
2792         struct zoran *zr = fh->zr;
2793         int i;
2794
2795         if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock))
2796                 return;
2797
2798         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2799                 __func__, mode_name(fh->map_mode));
2800
2801         for (i = 0; i < fh->buffers.num_buffers; i++) {
2802                 if (fh->buffers.buffer[i].map == map)
2803                         fh->buffers.buffer[i].map = NULL;
2804         }
2805         kfree(map);
2806
2807         /* Any buffers still mapped? */
2808         for (i = 0; i < fh->buffers.num_buffers; i++) {
2809                 if (fh->buffers.buffer[i].map) {
2810                         mutex_unlock(&zr->resource_lock);
2811                         return;
2812                 }
2813         }
2814
2815         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2816                 __func__, mode_name(fh->map_mode));
2817
2818
2819         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2820                 if (fh->buffers.active != ZORAN_FREE) {
2821                         unsigned long flags;
2822
2823                         spin_lock_irqsave(&zr->spinlock, flags);
2824                         zr36057_set_memgrab(zr, 0);
2825                         zr->v4l_buffers.allocated = 0;
2826                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2827                         spin_unlock_irqrestore(&zr->spinlock, flags);
2828                 }
2829                 v4l_fbuffer_free(fh);
2830         } else {
2831                 if (fh->buffers.active != ZORAN_FREE) {
2832                         jpg_qbuf(fh, -1, zr->codec_mode);
2833                         zr->jpg_buffers.allocated = 0;
2834                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
2835                 }
2836                 jpg_fbuffer_free(fh);
2837         }
2838
2839         mutex_unlock(&zr->resource_lock);
2840 }
2841
2842 static const struct vm_operations_struct zoran_vm_ops = {
2843         .open = zoran_vm_open,
2844         .close = zoran_vm_close,
2845 };
2846
2847 static int
2848 zoran_mmap (struct file           *file,
2849             struct vm_area_struct *vma)
2850 {
2851         struct zoran_fh *fh = file->private_data;
2852         struct zoran *zr = fh->zr;
2853         unsigned long size = (vma->vm_end - vma->vm_start);
2854         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2855         int i, j;
2856         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2857         int first, last;
2858         struct zoran_mapping *map;
2859         int res = 0;
2860
2861         dprintk(3,
2862                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2863                 ZR_DEVNAME(zr), __func__,
2864                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
2865
2866         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2867             !(vma->vm_flags & VM_WRITE)) {
2868                 dprintk(1,
2869                         KERN_ERR
2870                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2871                         ZR_DEVNAME(zr), __func__);
2872                 return -EINVAL;
2873         }
2874
2875         mutex_lock(&zr->resource_lock);
2876
2877         if (!fh->buffers.allocated) {
2878                 dprintk(1,
2879                         KERN_ERR
2880                         "%s: %s(%s) - buffers not yet allocated\n",
2881                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
2882                 res = -ENOMEM;
2883                 goto mmap_unlock_and_return;
2884         }
2885
2886         first = offset / fh->buffers.buffer_size;
2887         last = first - 1 + size / fh->buffers.buffer_size;
2888         if (offset % fh->buffers.buffer_size != 0 ||
2889             size % fh->buffers.buffer_size != 0 || first < 0 ||
2890             last < 0 || first >= fh->buffers.num_buffers ||
2891             last >= fh->buffers.buffer_size) {
2892                 dprintk(1,
2893                         KERN_ERR
2894                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2895                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
2896                         fh->buffers.buffer_size,
2897                         fh->buffers.num_buffers);
2898                 res = -EINVAL;
2899                 goto mmap_unlock_and_return;
2900         }
2901
2902         /* Check if any buffers are already mapped */
2903         for (i = first; i <= last; i++) {
2904                 if (fh->buffers.buffer[i].map) {
2905                         dprintk(1,
2906                                 KERN_ERR
2907                                 "%s: %s(%s) - buffer %d already mapped\n",
2908                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
2909                         res = -EBUSY;
2910                         goto mmap_unlock_and_return;
2911                 }
2912         }
2913
2914         /* map these buffers */
2915         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2916         if (!map) {
2917                 res = -ENOMEM;
2918                 goto mmap_unlock_and_return;
2919         }
2920         map->fh = fh;
2921         atomic_set(&map->count, 1);
2922
2923         vma->vm_ops = &zoran_vm_ops;
2924         vma->vm_flags |= VM_DONTEXPAND;
2925         vma->vm_private_data = map;
2926
2927         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2928                 for (i = first; i <= last; i++) {
2929                         todo = size;
2930                         if (todo > fh->buffers.buffer_size)
2931                                 todo = fh->buffers.buffer_size;
2932                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2933                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2934                                                         todo, PAGE_SHARED)) {
2935                                 dprintk(1,
2936                                         KERN_ERR
2937                                         "%s: %s(V4L) - remap_pfn_range failed\n",
2938                                         ZR_DEVNAME(zr), __func__);
2939                                 res = -EAGAIN;
2940                                 goto mmap_unlock_and_return;
2941                         }
2942                         size -= todo;
2943                         start += todo;
2944                         fh->buffers.buffer[i].map = map;
2945                         if (size == 0)
2946                                 break;
2947                 }
2948         } else {
2949                 for (i = first; i <= last; i++) {
2950                         for (j = 0;
2951                              j < fh->buffers.buffer_size / PAGE_SIZE;
2952                              j++) {
2953                                 fraglen =
2954                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
2955                                      frag_tab[2 * j + 1]) & ~1) << 1;
2956                                 todo = size;
2957                                 if (todo > fraglen)
2958                                         todo = fraglen;
2959                                 pos =
2960                                     le32_to_cpu(fh->buffers.
2961                                     buffer[i].jpg.frag_tab[2 * j]);
2962                                 /* should just be pos on i386 */
2963                                 page = virt_to_phys(bus_to_virt(pos))
2964                                                                 >> PAGE_SHIFT;
2965                                 if (remap_pfn_range(vma, start, page,
2966                                                         todo, PAGE_SHARED)) {
2967                                         dprintk(1,
2968                                                 KERN_ERR
2969                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
2970                                                 ZR_DEVNAME(zr), __func__);
2971                                         res = -EAGAIN;
2972                                         goto mmap_unlock_and_return;
2973                                 }
2974                                 size -= todo;
2975                                 start += todo;
2976                                 if (size == 0)
2977                                         break;
2978                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
2979                                     frag_tab[2 * j + 1]) & 1)
2980                                         break;  /* was last fragment */
2981                         }
2982                         fh->buffers.buffer[i].map = map;
2983                         if (size == 0)
2984                                 break;
2985
2986                 }
2987         }
2988
2989 mmap_unlock_and_return:
2990         mutex_unlock(&zr->resource_lock);
2991
2992         return res;
2993 }
2994
2995 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
2996         .vidioc_querycap                    = zoran_querycap,
2997         .vidioc_cropcap                     = zoran_cropcap,
2998         .vidioc_s_crop                      = zoran_s_crop,
2999         .vidioc_g_crop                      = zoran_g_crop,
3000         .vidioc_enum_input                  = zoran_enum_input,
3001         .vidioc_g_input                     = zoran_g_input,
3002         .vidioc_s_input                     = zoran_s_input,
3003         .vidioc_enum_output                 = zoran_enum_output,
3004         .vidioc_g_output                    = zoran_g_output,
3005         .vidioc_s_output                    = zoran_s_output,
3006         .vidioc_g_fbuf                      = zoran_g_fbuf,
3007         .vidioc_s_fbuf                      = zoran_s_fbuf,
3008         .vidioc_g_std                       = zoran_g_std,
3009         .vidioc_s_std                       = zoran_s_std,
3010         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
3011         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
3012         .vidioc_overlay                     = zoran_overlay,
3013         .vidioc_reqbufs                     = zoran_reqbufs,
3014         .vidioc_querybuf                    = zoran_querybuf,
3015         .vidioc_qbuf                        = zoran_qbuf,
3016         .vidioc_dqbuf                       = zoran_dqbuf,
3017         .vidioc_streamon                    = zoran_streamon,
3018         .vidioc_streamoff                   = zoran_streamoff,
3019         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
3020         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
3021         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
3022         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
3023         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
3024         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
3025         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
3026         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
3027         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
3028         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
3029         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
3030         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
3031         .vidioc_queryctrl                   = zoran_queryctrl,
3032         .vidioc_s_ctrl                      = zoran_s_ctrl,
3033         .vidioc_g_ctrl                      = zoran_g_ctrl,
3034 };
3035
3036 /* please use zr->resource_lock consistently and kill this wrapper */
3037 static long zoran_ioctl(struct file *file, unsigned int cmd,
3038                         unsigned long arg)
3039 {
3040         struct zoran_fh *fh = file->private_data;
3041         struct zoran *zr = fh->zr;
3042         int ret;
3043
3044         mutex_lock(&zr->other_lock);
3045         ret = video_ioctl2(file, cmd, arg);
3046         mutex_unlock(&zr->other_lock);
3047
3048         return ret;
3049 }
3050
3051 static const struct v4l2_file_operations zoran_fops = {
3052         .owner = THIS_MODULE,
3053         .open = zoran_open,
3054         .release = zoran_close,
3055         .unlocked_ioctl = zoran_ioctl,
3056         .read = zoran_read,
3057         .write = zoran_write,
3058         .mmap = zoran_mmap,
3059         .poll = zoran_poll,
3060 };
3061
3062 struct video_device zoran_template = {
3063         .name = ZORAN_NAME,
3064         .fops = &zoran_fops,
3065         .ioctl_ops = &zoran_ioctl_ops,
3066         .release = &zoran_vdev_release,
3067         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
3068 };
3069