drivers/media/video/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/version.h>
  48 #include <linux/init.h>
  49 #include <linux/module.h>
  50 #include <linux/delay.h>
  51 #include <linux/slab.h>
  52 #include <linux/pci.h>
  53 #include <linux/vmalloc.h>
  54 #include <linux/wait.h>
  55
  56 #include <linux/interrupt.h>
  57 #include <linux/i2c.h>
  58 #include <linux/i2c-algo-bit.h>
  59
  60 #include <linux/spinlock.h>
  61
  62 #include <linux/videodev2.h>
  63 #include <media/v4l2-common.h>
  64 #include <media/v4l2-ioctl.h>
  65 #include "videocodec.h"
  66
  67 #include <asm/byteorder.h>
  68 #include <asm/io.h>
  69 #include <asm/uaccess.h>
  70 #include <linux/proc_fs.h>
  71
  72 #include <linux/mutex.h>
  73 #include "zoran.h"
  74 #include "zoran_device.h"
  75 #include "zoran_card.h"
  76
  77
  78 const struct zoran_format zoran_formats[] = {
  79         {
  80                 .name = "15-bit RGB LE",
  81                 .fourcc = V4L2_PIX_FMT_RGB555,
  82                 .colorspace = V4L2_COLORSPACE_SRGB,
  83                 .depth = 15,
  84                 .flags = ZORAN_FORMAT_CAPTURE |
  85                          ZORAN_FORMAT_OVERLAY,
  86                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
  87                            ZR36057_VFESPFR_LittleEndian,
  88         }, {
  89                 .name = "15-bit RGB BE",
  90                 .fourcc = V4L2_PIX_FMT_RGB555X,
  91                 .colorspace = V4L2_COLORSPACE_SRGB,
  92                 .depth = 15,
  93                 .flags = ZORAN_FORMAT_CAPTURE |
  94                          ZORAN_FORMAT_OVERLAY,
  95                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
  96         }, {
  97                 .name = "16-bit RGB LE",
  98                 .fourcc = V4L2_PIX_FMT_RGB565,
  99                 .colorspace = V4L2_COLORSPACE_SRGB,
 100                 .depth = 16,
 101                 .flags = ZORAN_FORMAT_CAPTURE |
 102                          ZORAN_FORMAT_OVERLAY,
 103                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 104                            ZR36057_VFESPFR_LittleEndian,
 105         }, {
 106                 .name = "16-bit RGB BE",
 107                 .fourcc = V4L2_PIX_FMT_RGB565X,
 108                 .colorspace = V4L2_COLORSPACE_SRGB,
 109                 .depth = 16,
 110                 .flags = ZORAN_FORMAT_CAPTURE |
 111                          ZORAN_FORMAT_OVERLAY,
 112                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 113         }, {
 114                 .name = "24-bit RGB",
 115                 .fourcc = V4L2_PIX_FMT_BGR24,
 116                 .colorspace = V4L2_COLORSPACE_SRGB,
 117                 .depth = 24,
 118                 .flags = ZORAN_FORMAT_CAPTURE |
 119                          ZORAN_FORMAT_OVERLAY,
 120                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 121         }, {
 122                 .name = "32-bit RGB LE",
 123                 .fourcc = V4L2_PIX_FMT_BGR32,
 124                 .colorspace = V4L2_COLORSPACE_SRGB,
 125                 .depth = 32,
 126                 .flags = ZORAN_FORMAT_CAPTURE |
 127                          ZORAN_FORMAT_OVERLAY,
 128                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 129         }, {
 130                 .name = "32-bit RGB BE",
 131                 .fourcc = V4L2_PIX_FMT_RGB32,
 132                 .colorspace = V4L2_COLORSPACE_SRGB,
 133                 .depth = 32,
 134                 .flags = ZORAN_FORMAT_CAPTURE |
 135                          ZORAN_FORMAT_OVERLAY,
 136                 .vfespfr = ZR36057_VFESPFR_RGB888,
 137         }, {
 138                 .name = "4:2:2, packed, YUYV",
 139                 .fourcc = V4L2_PIX_FMT_YUYV,
 140                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 141                 .depth = 16,
 142                 .flags = ZORAN_FORMAT_CAPTURE |
 143                          ZORAN_FORMAT_OVERLAY,
 144                 .vfespfr = ZR36057_VFESPFR_YUV422,
 145         }, {
 146                 .name = "4:2:2, packed, UYVY",
 147                 .fourcc = V4L2_PIX_FMT_UYVY,
 148                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 149                 .depth = 16,
 150                 .flags = ZORAN_FORMAT_CAPTURE |
 151                          ZORAN_FORMAT_OVERLAY,
 152                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 153         }, {
 154                 .name = "Hardware-encoded Motion-JPEG",
 155                 .fourcc = V4L2_PIX_FMT_MJPEG,
 156                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 157                 .depth = 0,
 158                 .flags = ZORAN_FORMAT_CAPTURE |
 159                          ZORAN_FORMAT_PLAYBACK |
 160                          ZORAN_FORMAT_COMPRESSED,
 161         }
 162 };
 163 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 164
 165         /* small helper function for calculating buffersizes for v4l2
 166          * we calculate the nearest higher power-of-two, which
 167          * will be the recommended buffersize */
 168 static __u32
 169 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 170 {
 171         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 172         __u32 num = (1024 * 512) / (div);
 173         __u32 result = 2;
 174
 175         num--;
 176         while (num) {
 177                 num >>= 1;
 178                 result <<= 1;
 179         }
 180
 181         if (result > jpg_bufsize)
 182                 return jpg_bufsize;
 183         if (result < 8192)
 184                 return 8192;
 185         return result;
 186 }
 187
 188 /* forward references */
 189 static void v4l_fbuffer_free(struct zoran_fh *fh);
 190 static void jpg_fbuffer_free(struct zoran_fh *fh);
 191
 192 /* Set mapping mode */
 193 static void map_mode_raw(struct zoran_fh *fh)
 194 {
 195         fh->map_mode = ZORAN_MAP_MODE_RAW;
 196         fh->buffers.buffer_size = v4l_bufsize;
 197         fh->buffers.num_buffers = v4l_nbufs;
 198 }
 199 static void map_mode_jpg(struct zoran_fh *fh, int play)
 200 {
 201         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
 202         fh->buffers.buffer_size = jpg_bufsize;
 203         fh->buffers.num_buffers = jpg_nbufs;
 204 }
 205 static inline const char *mode_name(enum zoran_map_mode mode)
 206 {
 207         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
 208 }
 209
 210 /*
 211  *   Allocate the V4L grab buffers
 212  *
 213  *   These have to be pysically contiguous.
 214  */
 215
 216 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
 217 {
 218         struct zoran *zr = fh->zr;
 219         int i, off;
 220         unsigned char *mem;
 221
 222         for (i = 0; i < fh->buffers.num_buffers; i++) {
 223                 if (fh->buffers.buffer[i].v4l.fbuffer)
 224                         dprintk(2,
 225                                 KERN_WARNING
 226                                 "%s: %s - buffer %d already allocated!?\n",
 227                                 ZR_DEVNAME(zr), __func__, i);
 228
 229                 //udelay(20);
 230                 mem = kmalloc(fh->buffers.buffer_size,
 231                               GFP_KERNEL | __GFP_NOWARN);
 232                 if (!mem) {
 233                         dprintk(1,
 234                                 KERN_ERR
 235                                 "%s: %s - kmalloc for V4L buf %d failed\n",
 236                                 ZR_DEVNAME(zr), __func__, i);
 237                         v4l_fbuffer_free(fh);
 238                         return -ENOBUFS;
 239                 }
 240                 fh->buffers.buffer[i].v4l.fbuffer = mem;
 241                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
 242                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
 243                 for (off = 0; off < fh->buffers.buffer_size;
 244                      off += PAGE_SIZE)
 245                         SetPageReserved(virt_to_page(mem + off));
 246                 dprintk(4,
 247                         KERN_INFO
 248                         "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
 249                         ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
 250                         (unsigned long long)virt_to_bus(mem));
 251         }
 252
 253         fh->buffers.allocated = 1;
 254
 255         return 0;
 256 }
 257
 258 /* free the V4L grab buffers */
 259 static void v4l_fbuffer_free(struct zoran_fh *fh)
 260 {
 261         struct zoran *zr = fh->zr;
 262         int i, off;
 263         unsigned char *mem;
 264
 265         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
 266
 267         for (i = 0; i < fh->buffers.num_buffers; i++) {
 268                 if (!fh->buffers.buffer[i].v4l.fbuffer)
 269                         continue;
 270
 271                 mem = fh->buffers.buffer[i].v4l.fbuffer;
 272                 for (off = 0; off < fh->buffers.buffer_size;
 273                      off += PAGE_SIZE)
 274                         ClearPageReserved(virt_to_page(mem + off));
 275                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
 276                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
 277         }
 278
 279         fh->buffers.allocated = 0;
 280 }
 281
 282 /*
 283  *   Allocate the MJPEG grab buffers.
 284  *
 285  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 286  *   each MJPEG buffer needs to be physically contiguous.
 287  *   (RJ: This statement is from Dave Perks' original driver,
 288  *   I could never check it because I have a zr36067)
 289  *
 290  *   RJ: The contents grab buffers needs never be accessed in the driver.
 291  *       Therefore there is no need to allocate them with vmalloc in order
 292  *       to get a contiguous virtual memory space.
 293  *       I don't understand why many other drivers first allocate them with
 294  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 295  *       virtual addresses) and then again have to make a lot of efforts
 296  *       to get the physical address.
 297  *
 298  *   Ben Capper:
 299  *       On big-endian architectures (such as ppc) some extra steps
 300  *       are needed. When reading and writing to the stat_com array
 301  *       and fragment buffers, the device expects to see little-
 302  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 303  *       in this function (and one or two others in zoran_device.c)
 304  *       ensure that these values are always stored in little-endian
 305  *       form, regardless of architecture. The zr36057 does Very Bad
 306  *       Things on big endian architectures if the stat_com array
 307  *       and fragment buffers are not little-endian.
 308  */
 309
 310 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
 311 {
 312         struct zoran *zr = fh->zr;
 313         int i, j, off;
 314         u8 *mem;
 315
 316         for (i = 0; i < fh->buffers.num_buffers; i++) {
 317                 if (fh->buffers.buffer[i].jpg.frag_tab)
 318                         dprintk(2,
 319                                 KERN_WARNING
 320                                 "%s: %s - buffer %d already allocated!?\n",
 321                                 ZR_DEVNAME(zr), __func__, i);
 322
 323                 /* Allocate fragment table for this buffer */
 324
 325                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 326                 if (!mem) {
 327                         dprintk(1,
 328                                 KERN_ERR
 329                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
 330                                 ZR_DEVNAME(zr), __func__, i);
 331                         jpg_fbuffer_free(fh);
 332                         return -ENOBUFS;
 333                 }
 334                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
 335                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
 336
 337                 if (fh->buffers.need_contiguous) {
 338                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
 339                         if (mem == NULL) {
 340                                 dprintk(1,
 341                                         KERN_ERR
 342                                         "%s: %s - kmalloc failed for buffer %d\n",
 343                                         ZR_DEVNAME(zr), __func__, i);
 344                                 jpg_fbuffer_free(fh);
 345                                 return -ENOBUFS;
 346                         }
 347                         fh->buffers.buffer[i].jpg.frag_tab[0] =
 348                                 cpu_to_le32(virt_to_bus(mem));
 349                         fh->buffers.buffer[i].jpg.frag_tab[1] =
 350                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
 351                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 352                                 SetPageReserved(virt_to_page(mem + off));
 353                 } else {
 354                         /* jpg_bufsize is already page aligned */
 355                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 356                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 357                                 if (mem == NULL) {
 358                                         dprintk(1,
 359                                                 KERN_ERR
 360                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
 361                                                 ZR_DEVNAME(zr), __func__, i);
 362                                         jpg_fbuffer_free(fh);
 363                                         return -ENOBUFS;
 364                                 }
 365
 366                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
 367                                         cpu_to_le32(virt_to_bus(mem));
 368                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
 369                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
 370                                 SetPageReserved(virt_to_page(mem));
 371                         }
 372
 373                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
 374                 }
 375         }
 376
 377         dprintk(4,
 378                 KERN_DEBUG "%s: %s - %d KB allocated\n",
 379                 ZR_DEVNAME(zr), __func__,
 380                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
 381
 382         fh->buffers.allocated = 1;
 383
 384         return 0;
 385 }
 386
 387 /* free the MJPEG grab buffers */
 388 static void jpg_fbuffer_free(struct zoran_fh *fh)
 389 {
 390         struct zoran *zr = fh->zr;
 391         int i, j, off;
 392         unsigned char *mem;
 393         __le32 frag_tab;
 394         struct zoran_buffer *buffer;
 395
 396         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
 397
 398         for (i = 0, buffer = &fh->buffers.buffer[0];
 399              i < fh->buffers.num_buffers; i++, buffer++) {
 400                 if (!buffer->jpg.frag_tab)
 401                         continue;
 402
 403                 if (fh->buffers.need_contiguous) {
 404                         frag_tab = buffer->jpg.frag_tab[0];
 405
 406                         if (frag_tab) {
 407                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
 408                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 409                                         ClearPageReserved(virt_to_page(mem + off));
 410                                 kfree(mem);
 411                                 buffer->jpg.frag_tab[0] = 0;
 412                                 buffer->jpg.frag_tab[1] = 0;
 413                         }
 414                 } else {
 415                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 416                                 frag_tab = buffer->jpg.frag_tab[2 * j];
 417
 418                                 if (!frag_tab)
 419                                         break;
 420                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
 421                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
 422                                 buffer->jpg.frag_tab[2 * j] = 0;
 423                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
 424                         }
 425                 }
 426
 427                 free_page((unsigned long)buffer->jpg.frag_tab);
 428                 buffer->jpg.frag_tab = NULL;
 429         }
 430
 431         fh->buffers.allocated = 0;
 432 }
 433
 434 /*
 435  *   V4L Buffer grabbing
 436  */
 437
 438 static int
 439 zoran_v4l_set_format (struct zoran_fh           *fh,
 440                       int                        width,
 441                       int                        height,
 442                       const struct zoran_format *format)
 443 {
 444         struct zoran *zr = fh->zr;
 445         int bpp;
 446
 447         /* Check size and format of the grab wanted */
 448
 449         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 450             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 451                 dprintk(1,
 452                         KERN_ERR
 453                         "%s: %s - wrong frame size (%dx%d)\n",
 454                         ZR_DEVNAME(zr), __func__, width, height);
 455                 return -EINVAL;
 456         }
 457
 458         bpp = (format->depth + 7) / 8;
 459
 460         /* Check against available buffer size */
 461         if (height * width * bpp > fh->buffers.buffer_size) {
 462                 dprintk(1,
 463                         KERN_ERR
 464                         "%s: %s - video buffer size (%d kB) is too small\n",
 465                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
 466                 return -EINVAL;
 467         }
 468
 469         /* The video front end needs 4-byte alinged line sizes */
 470
 471         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 472                 dprintk(1,
 473                         KERN_ERR
 474                         "%s: %s - wrong frame alignment\n",
 475                         ZR_DEVNAME(zr), __func__);
 476                 return -EINVAL;
 477         }
 478
 479         fh->v4l_settings.width = width;
 480         fh->v4l_settings.height = height;
 481         fh->v4l_settings.format = format;
 482         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 483
 484         return 0;
 485 }
 486
 487 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
 488 {
 489         struct zoran *zr = fh->zr;
 490         unsigned long flags;
 491         int res = 0;
 492
 493         if (!fh->buffers.allocated) {
 494                 dprintk(1,
 495                         KERN_ERR
 496                         "%s: %s - buffers not yet allocated\n",
 497                         ZR_DEVNAME(zr), __func__);
 498                 res = -ENOMEM;
 499         }
 500
 501         /* No grabbing outside the buffer range! */
 502         if (num >= fh->buffers.num_buffers || num < 0) {
 503                 dprintk(1,
 504                         KERN_ERR
 505                         "%s: %s - buffer %d is out of range\n",
 506                         ZR_DEVNAME(zr), __func__, num);
 507                 res = -EINVAL;
 508         }
 509
 510         spin_lock_irqsave(&zr->spinlock, flags);
 511
 512         if (fh->buffers.active == ZORAN_FREE) {
 513                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 514                         zr->v4l_buffers = fh->buffers;
 515                         fh->buffers.active = ZORAN_ACTIVE;
 516                 } else {
 517                         dprintk(1,
 518                                 KERN_ERR
 519                                 "%s: %s - another session is already capturing\n",
 520                                 ZR_DEVNAME(zr), __func__);
 521                         res = -EBUSY;
 522                 }
 523         }
 524
 525         /* make sure a grab isn't going on currently with this buffer */
 526         if (!res) {
 527                 switch (zr->v4l_buffers.buffer[num].state) {
 528                 default:
 529                 case BUZ_STATE_PEND:
 530                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 531                                 fh->buffers.active = ZORAN_FREE;
 532                                 zr->v4l_buffers.allocated = 0;
 533                         }
 534                         res = -EBUSY;   /* what are you doing? */
 535                         break;
 536                 case BUZ_STATE_DONE:
 537                         dprintk(2,
 538                                 KERN_WARNING
 539                                 "%s: %s - queueing buffer %d in state DONE!?\n",
 540                                 ZR_DEVNAME(zr), __func__, num);
 541                 case BUZ_STATE_USER:
 542                         /* since there is at least one unused buffer there's room for at least
 543                          * one more pend[] entry */
 544                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
 545                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 546                         zr->v4l_buffers.buffer[num].bs.length =
 547                             fh->v4l_settings.bytesperline *
 548                             zr->v4l_settings.height;
 549                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
 550                         break;
 551                 }
 552         }
 553
 554         spin_unlock_irqrestore(&zr->spinlock, flags);
 555
 556         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 557                 zr->v4l_buffers.active = fh->buffers.active;
 558
 559         return res;
 560 }
 561
 562 /*
 563  * Sync on a V4L buffer
 564  */
 565
 566 static int v4l_sync(struct zoran_fh *fh, int frame)
 567 {
 568         struct zoran *zr = fh->zr;
 569         unsigned long flags;
 570
 571         if (fh->buffers.active == ZORAN_FREE) {
 572                 dprintk(1,
 573                         KERN_ERR
 574                         "%s: %s - no grab active for this session\n",
 575                         ZR_DEVNAME(zr), __func__);
 576                 return -EINVAL;
 577         }
 578
 579         /* check passed-in frame number */
 580         if (frame >= fh->buffers.num_buffers || frame < 0) {
 581                 dprintk(1,
 582                         KERN_ERR "%s: %s - frame %d is invalid\n",
 583                         ZR_DEVNAME(zr), __func__, frame);
 584                 return -EINVAL;
 585         }
 586
 587         /* Check if is buffer was queued at all */
 588         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 589                 dprintk(1,
 590                         KERN_ERR
 591                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
 592                         ZR_DEVNAME(zr), __func__);
 593                 return -EPROTO;
 594         }
 595
 596         /* wait on this buffer to get ready */
 597         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 598                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
 599                 return -ETIME;
 600         if (signal_pending(current))
 601                 return -ERESTARTSYS;
 602
 603         /* buffer should now be in BUZ_STATE_DONE */
 604         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 605                 dprintk(2,
 606                         KERN_ERR "%s: %s - internal state error\n",
 607                         ZR_DEVNAME(zr), __func__);
 608
 609         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 610         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 611
 612         spin_lock_irqsave(&zr->spinlock, flags);
 613
 614         /* Check if streaming capture has finished */
 615         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 616                 zr36057_set_memgrab(zr, 0);
 617                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 618                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
 619                         zr->v4l_buffers.allocated = 0;
 620                 }
 621         }
 622
 623         spin_unlock_irqrestore(&zr->spinlock, flags);
 624
 625         return 0;
 626 }
 627
 628 /*
 629  *   Queue a MJPEG buffer for capture/playback
 630  */
 631
 632 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
 633                                  enum zoran_codec_mode mode)
 634 {
 635         struct zoran *zr = fh->zr;
 636         unsigned long flags;
 637         int res = 0;
 638
 639         /* Check if buffers are allocated */
 640         if (!fh->buffers.allocated) {
 641                 dprintk(1,
 642                         KERN_ERR
 643                         "%s: %s - buffers not yet allocated\n",
 644                         ZR_DEVNAME(zr), __func__);
 645                 return -ENOMEM;
 646         }
 647
 648         /* No grabbing outside the buffer range! */
 649         if (num >= fh->buffers.num_buffers || num < 0) {
 650                 dprintk(1,
 651                         KERN_ERR
 652                         "%s: %s - buffer %d out of range\n",
 653                         ZR_DEVNAME(zr), __func__, num);
 654                 return -EINVAL;
 655         }
 656
 657         /* what is the codec mode right now? */
 658         if (zr->codec_mode == BUZ_MODE_IDLE) {
 659                 zr->jpg_settings = fh->jpg_settings;
 660         } else if (zr->codec_mode != mode) {
 661                 /* wrong codec mode active - invalid */
 662                 dprintk(1,
 663                         KERN_ERR
 664                         "%s: %s - codec in wrong mode\n",
 665                         ZR_DEVNAME(zr), __func__);
 666                 return -EINVAL;
 667         }
 668
 669         if (fh->buffers.active == ZORAN_FREE) {
 670                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 671                         zr->jpg_buffers = fh->buffers;
 672                         fh->buffers.active = ZORAN_ACTIVE;
 673                 } else {
 674                         dprintk(1,
 675                                 KERN_ERR
 676                                 "%s: %s - another session is already capturing\n",
 677                                 ZR_DEVNAME(zr), __func__);
 678                         res = -EBUSY;
 679                 }
 680         }
 681
 682         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 683                 /* Ok load up the jpeg codec */
 684                 zr36057_enable_jpg(zr, mode);
 685         }
 686
 687         spin_lock_irqsave(&zr->spinlock, flags);
 688
 689         if (!res) {
 690                 switch (zr->jpg_buffers.buffer[num].state) {
 691                 case BUZ_STATE_DONE:
 692                         dprintk(2,
 693                                 KERN_WARNING
 694                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
 695                                 ZR_DEVNAME(zr), __func__);
 696                 case BUZ_STATE_USER:
 697                         /* since there is at least one unused buffer there's room for at
 698                          *least one more pend[] entry */
 699                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
 700                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 701                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
 702                         zoran_feed_stat_com(zr);
 703                         break;
 704                 default:
 705                 case BUZ_STATE_DMA:
 706                 case BUZ_STATE_PEND:
 707                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 708                                 fh->buffers.active = ZORAN_FREE;
 709                                 zr->jpg_buffers.allocated = 0;
 710                         }
 711                         res = -EBUSY;   /* what are you doing? */
 712                         break;
 713                 }
 714         }
 715
 716         spin_unlock_irqrestore(&zr->spinlock, flags);
 717
 718         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
 719                 zr->jpg_buffers.active = fh->buffers.active;
 720
 721         return res;
 722 }
 723
 724 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
 725 {
 726         struct zoran *zr = fh->zr;
 727         int res = 0;
 728
 729         /* Does the user want to stop streaming? */
 730         if (frame < 0) {
 731                 if (zr->codec_mode == mode) {
 732                         if (fh->buffers.active == ZORAN_FREE) {
 733                                 dprintk(1,
 734                                         KERN_ERR
 735                                         "%s: %s(-1) - session not active\n",
 736                                         ZR_DEVNAME(zr), __func__);
 737                                 return -EINVAL;
 738                         }
 739                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
 740                         zr->jpg_buffers.allocated = 0;
 741                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 742                         return 0;
 743                 } else {
 744                         dprintk(1,
 745                                 KERN_ERR
 746                                 "%s: %s - stop streaming but not in streaming mode\n",
 747                                 ZR_DEVNAME(zr), __func__);
 748                         return -EINVAL;
 749                 }
 750         }
 751
 752         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
 753                 return res;
 754
 755         /* Start the jpeg codec when the first frame is queued  */
 756         if (!res && zr->jpg_que_head == 1)
 757                 jpeg_start(zr);
 758
 759         return res;
 760 }
 761
 762 /*
 763  *   Sync on a MJPEG buffer
 764  */
 765
 766 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
 767 {
 768         struct zoran *zr = fh->zr;
 769         unsigned long flags;
 770         int frame;
 771
 772         if (fh->buffers.active == ZORAN_FREE) {
 773                 dprintk(1,
 774                         KERN_ERR
 775                         "%s: %s - capture is not currently active\n",
 776                         ZR_DEVNAME(zr), __func__);
 777                 return -EINVAL;
 778         }
 779         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
 780             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
 781                 dprintk(1,
 782                         KERN_ERR
 783                         "%s: %s - codec not in streaming mode\n",
 784                         ZR_DEVNAME(zr), __func__);
 785                 return -EINVAL;
 786         }
 787         if (!wait_event_interruptible_timeout(zr->jpg_capq,
 788                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
 789                          zr->jpg_dma_tail == zr->jpg_dma_head),
 790                         10*HZ)) {
 791                 int isr;
 792
 793                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
 794                 udelay(1);
 795                 zr->codec->control(zr->codec, CODEC_G_STATUS,
 796                                            sizeof(isr), &isr);
 797                 dprintk(1,
 798                         KERN_ERR
 799                         "%s: %s - timeout: codec isr=0x%02x\n",
 800                         ZR_DEVNAME(zr), __func__, isr);
 801
 802                 return -ETIME;
 803
 804         }
 805         if (signal_pending(current))
 806                 return -ERESTARTSYS;
 807
 808         spin_lock_irqsave(&zr->spinlock, flags);
 809
 810         if (zr->jpg_dma_tail != zr->jpg_dma_head)
 811                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
 812         else
 813                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
 814
 815         /* buffer should now be in BUZ_STATE_DONE */
 816         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
 817                 dprintk(2,
 818                         KERN_ERR "%s: %s - internal state error\n",
 819                         ZR_DEVNAME(zr), __func__);
 820
 821         *bs = zr->jpg_buffers.buffer[frame].bs;
 822         bs->frame = frame;
 823         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
 824         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
 825
 826         spin_unlock_irqrestore(&zr->spinlock, flags);
 827
 828         return 0;
 829 }
 830
 831 static void zoran_open_init_session(struct zoran_fh *fh)
 832 {
 833         int i;
 834         struct zoran *zr = fh->zr;
 835
 836         /* Per default, map the V4L Buffers */
 837         map_mode_raw(fh);
 838
 839         /* take over the card's current settings */
 840         fh->overlay_settings = zr->overlay_settings;
 841         fh->overlay_settings.is_set = 0;
 842         fh->overlay_settings.format = zr->overlay_settings.format;
 843         fh->overlay_active = ZORAN_FREE;
 844
 845         /* v4l settings */
 846         fh->v4l_settings = zr->v4l_settings;
 847         /* jpg settings */
 848         fh->jpg_settings = zr->jpg_settings;
 849
 850         /* buffers */
 851         memset(&fh->buffers, 0, sizeof(fh->buffers));
 852         for (i = 0; i < MAX_FRAME; i++) {
 853                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
 854                 fh->buffers.buffer[i].bs.frame = i;
 855         }
 856         fh->buffers.allocated = 0;
 857         fh->buffers.active = ZORAN_FREE;
 858 }
 859
 860 static void zoran_close_end_session(struct zoran_fh *fh)
 861 {
 862         struct zoran *zr = fh->zr;
 863
 864         /* overlay */
 865         if (fh->overlay_active != ZORAN_FREE) {
 866                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
 867                 zr->v4l_overlay_active = 0;
 868                 if (!zr->v4l_memgrab_active)
 869                         zr36057_overlay(zr, 0);
 870                 zr->overlay_mask = NULL;
 871         }
 872
 873         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
 874                 /* v4l capture */
 875                 if (fh->buffers.active != ZORAN_FREE) {
 876                         unsigned long flags;
 877
 878                         spin_lock_irqsave(&zr->spinlock, flags);
 879                         zr36057_set_memgrab(zr, 0);
 880                         zr->v4l_buffers.allocated = 0;
 881                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
 882                         spin_unlock_irqrestore(&zr->spinlock, flags);
 883                 }
 884
 885                 /* v4l buffers */
 886                 if (fh->buffers.allocated)
 887                         v4l_fbuffer_free(fh);
 888         } else {
 889                 /* jpg capture */
 890                 if (fh->buffers.active != ZORAN_FREE) {
 891                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 892                         zr->jpg_buffers.allocated = 0;
 893                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
 894                 }
 895
 896                 /* jpg buffers */
 897                 if (fh->buffers.allocated)
 898                         jpg_fbuffer_free(fh);
 899         }
 900 }
 901
 902 /*
 903  *   Open a zoran card. Right now the flags stuff is just playing
 904  */
 905
 906 static int zoran_open(struct file *file)
 907 {
 908         struct zoran *zr = video_drvdata(file);
 909         struct zoran_fh *fh;
 910         int res, first_open = 0;
 911
 912         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 913                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 914
 915         mutex_lock(&zr->other_lock);
 916
 917         if (zr->user >= 2048) {
 918                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 919                         ZR_DEVNAME(zr), zr->user);
 920                 res = -EBUSY;
 921                 goto fail_unlock;
 922         }
 923
 924         /* now, create the open()-specific file_ops struct */
 925         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 926         if (!fh) {
 927                 dprintk(1,
 928                         KERN_ERR
 929                         "%s: %s - allocation of zoran_fh failed\n",
 930                         ZR_DEVNAME(zr), __func__);
 931                 res = -ENOMEM;
 932                 goto fail_unlock;
 933         }
 934         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 935          * on norm-change! */
 936         fh->overlay_mask =
 937             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
 938         if (!fh->overlay_mask) {
 939                 dprintk(1,
 940                         KERN_ERR
 941                         "%s: %s - allocation of overlay_mask failed\n",
 942                         ZR_DEVNAME(zr), __func__);
 943                 res = -ENOMEM;
 944                 goto fail_fh;
 945         }
 946
 947         if (zr->user++ == 0)
 948                 first_open = 1;
 949
 950         /*mutex_unlock(&zr->resource_lock);*/
 951
 952         /* default setup - TODO: look at flags */
 953         if (first_open) {       /* First device open */
 954                 zr36057_restart(zr);
 955                 zoran_open_init_params(zr);
 956                 zoran_init_hardware(zr);
 957
 958                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
 959         }
 960
 961         /* set file_ops stuff */
 962         file->private_data = fh;
 963         fh->zr = zr;
 964         zoran_open_init_session(fh);
 965         mutex_unlock(&zr->other_lock);
 966
 967         return 0;
 968
 969 fail_fh:
 970         kfree(fh);
 971 fail_unlock:
 972         mutex_unlock(&zr->other_lock);
 973
 974         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 975                 ZR_DEVNAME(zr), res, zr->user);
 976
 977         return res;
 978 }
 979
 980 static int
 981 zoran_close(struct file  *file)
 982 {
 983         struct zoran_fh *fh = file->private_data;
 984         struct zoran *zr = fh->zr;
 985
 986         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
 987                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
 988
 989         /* kernel locks (fs/device.c), so don't do that ourselves
 990          * (prevents deadlocks) */
 991         mutex_lock(&zr->other_lock);
 992
 993         zoran_close_end_session(fh);
 994
 995         if (zr->user-- == 1) {  /* Last process */
 996                 /* Clean up JPEG process */
 997                 wake_up_interruptible(&zr->jpg_capq);
 998                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 999                 zr->jpg_buffers.allocated = 0;
1000                 zr->jpg_buffers.active = ZORAN_FREE;
1001
1002                 /* disable interrupts */
1003                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1004
1005                 if (zr36067_debug > 1)
1006                         print_interrupts(zr);
1007
1008                 /* Overlay off */
1009                 zr->v4l_overlay_active = 0;
1010                 zr36057_overlay(zr, 0);
1011                 zr->overlay_mask = NULL;
1012
1013                 /* capture off */
1014                 wake_up_interruptible(&zr->v4l_capq);
1015                 zr36057_set_memgrab(zr, 0);
1016                 zr->v4l_buffers.allocated = 0;
1017                 zr->v4l_buffers.active = ZORAN_FREE;
1018                 zoran_set_pci_master(zr, 0);
1019
1020                 if (!pass_through) {    /* Switch to color bar */
1021                         decoder_call(zr, video, s_stream, 0);
1022                         encoder_call(zr, video, s_routing, 2, 0, 0);
1023                 }
1024         }
1025         mutex_unlock(&zr->other_lock);
1026
1027         file->private_data = NULL;
1028         kfree(fh->overlay_mask);
1029         kfree(fh);
1030
1031         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1032
1033         return 0;
1034 }
1035
1036
1037 static ssize_t
1038 zoran_read (struct file *file,
1039             char        __user *data,
1040             size_t       count,
1041             loff_t      *ppos)
1042 {
1043         /* we simply don't support read() (yet)... */
1044
1045         return -EINVAL;
1046 }
1047
1048 static ssize_t
1049 zoran_write (struct file *file,
1050              const char  __user *data,
1051              size_t       count,
1052              loff_t      *ppos)
1053 {
1054         /* ...and the same goes for write() */
1055
1056         return -EINVAL;
1057 }
1058
1059 static int setup_fbuffer(struct zoran_fh *fh,
1060                void                      *base,
1061                const struct zoran_format *fmt,
1062                int                        width,
1063                int                        height,
1064                int                        bytesperline)
1065 {
1066         struct zoran *zr = fh->zr;
1067
1068         /* (Ronald) v4l/v4l2 guidelines */
1069         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1070                 return -EPERM;
1071
1072         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1073            ALi Magik (that needs very low latency while the card needs a
1074            higher value always) */
1075
1076         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1077                 return -ENXIO;
1078
1079         /* we need a bytesperline value, even if not given */
1080         if (!bytesperline)
1081                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1082
1083 #if 0
1084         if (zr->overlay_active) {
1085                 /* dzjee... stupid users... don't even bother to turn off
1086                  * overlay before changing the memory location...
1087                  * normally, we would return errors here. However, one of
1088                  * the tools that does this is... xawtv! and since xawtv
1089                  * is used by +/- 99% of the users, we'd rather be user-
1090                  * friendly and silently do as if nothing went wrong */
1091                 dprintk(3,
1092                         KERN_ERR
1093                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1094                         ZR_DEVNAME(zr), __func__);
1095                 zr36057_overlay(zr, 0);
1096         }
1097 #endif
1098
1099         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1100                 dprintk(1,
1101                         KERN_ERR
1102                         "%s: %s - no valid overlay format given\n",
1103                         ZR_DEVNAME(zr), __func__);
1104                 return -EINVAL;
1105         }
1106         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1107                 dprintk(1,
1108                         KERN_ERR
1109                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1110                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1111                 return -EINVAL;
1112         }
1113         if (bytesperline & 3) {
1114                 dprintk(1,
1115                         KERN_ERR
1116                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1117                         ZR_DEVNAME(zr), __func__, bytesperline);
1118                 return -EINVAL;
1119         }
1120
1121         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1122         zr->vbuf_height = height;
1123         zr->vbuf_width = width;
1124         zr->vbuf_depth = fmt->depth;
1125         zr->overlay_settings.format = fmt;
1126         zr->vbuf_bytesperline = bytesperline;
1127
1128         /* The user should set new window parameters */
1129         zr->overlay_settings.is_set = 0;
1130
1131         return 0;
1132 }
1133
1134
1135 static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height,
1136         struct v4l2_clip __user *clips, int clipcount, void __user *bitmap)
1137 {
1138         struct zoran *zr = fh->zr;
1139         struct v4l2_clip *vcp = NULL;
1140         int on, end;
1141
1142
1143         if (!zr->vbuf_base) {
1144                 dprintk(1,
1145                         KERN_ERR
1146                         "%s: %s - frame buffer has to be set first\n",
1147                         ZR_DEVNAME(zr), __func__);
1148                 return -EINVAL;
1149         }
1150
1151         if (!fh->overlay_settings.format) {
1152                 dprintk(1,
1153                         KERN_ERR
1154                         "%s: %s - no overlay format set\n",
1155                         ZR_DEVNAME(zr), __func__);
1156                 return -EINVAL;
1157         }
1158
1159         /*
1160          * The video front end needs 4-byte alinged line sizes, we correct that
1161          * silently here if necessary
1162          */
1163         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1164                 end = (x + width) & ~1; /* round down */
1165                 x = (x + 1) & ~1;       /* round up */
1166                 width = end - x;
1167         }
1168
1169         if (zr->vbuf_depth == 24) {
1170                 end = (x + width) & ~3; /* round down */
1171                 x = (x + 3) & ~3;       /* round up */
1172                 width = end - x;
1173         }
1174
1175         if (width > BUZ_MAX_WIDTH)
1176                 width = BUZ_MAX_WIDTH;
1177         if (height > BUZ_MAX_HEIGHT)
1178                 height = BUZ_MAX_HEIGHT;
1179
1180         /* Check for invalid parameters */
1181         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1182             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1183                 dprintk(1,
1184                         KERN_ERR
1185                         "%s: %s - width = %d or height = %d invalid\n",
1186                         ZR_DEVNAME(zr), __func__, width, height);
1187                 return -EINVAL;
1188         }
1189
1190         fh->overlay_settings.x = x;
1191         fh->overlay_settings.y = y;
1192         fh->overlay_settings.width = width;
1193         fh->overlay_settings.height = height;
1194         fh->overlay_settings.clipcount = clipcount;
1195
1196         /*
1197          * If an overlay is running, we have to switch it off
1198          * and switch it on again in order to get the new settings in effect.
1199          *
1200          * We also want to avoid that the overlay mask is written
1201          * when an overlay is running.
1202          */
1203
1204         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1205             zr->overlay_active != ZORAN_FREE &&
1206             fh->overlay_active != ZORAN_FREE;
1207         if (on)
1208                 zr36057_overlay(zr, 0);
1209
1210         /*
1211          *   Write the overlay mask if clips are wanted.
1212          *   We prefer a bitmap.
1213          */
1214         if (bitmap) {
1215                 /* fake value - it just means we want clips */
1216                 fh->overlay_settings.clipcount = 1;
1217
1218                 if (copy_from_user(fh->overlay_mask, bitmap,
1219                                    (width * height + 7) / 8)) {
1220                         return -EFAULT;
1221                 }
1222         } else if (clipcount > 0) {
1223                 /* write our own bitmap from the clips */
1224                 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1225                 if (vcp == NULL) {
1226                         dprintk(1,
1227                                 KERN_ERR
1228                                 "%s: %s - Alloc of clip mask failed\n",
1229                                 ZR_DEVNAME(zr), __func__);
1230                         return -ENOMEM;
1231                 }
1232                 if (copy_from_user
1233                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1234                         vfree(vcp);
1235                         return -EFAULT;
1236                 }
1237                 write_overlay_mask(fh, vcp, clipcount);
1238                 vfree(vcp);
1239         }
1240
1241         fh->overlay_settings.is_set = 1;
1242         if (fh->overlay_active != ZORAN_FREE &&
1243             zr->overlay_active != ZORAN_FREE)
1244                 zr->overlay_settings = fh->overlay_settings;
1245
1246         if (on)
1247                 zr36057_overlay(zr, 1);
1248
1249         /* Make sure the changes come into effect */
1250         return wait_grab_pending(zr);
1251 }
1252
1253 static int setup_overlay(struct zoran_fh *fh, int on)
1254 {
1255         struct zoran *zr = fh->zr;
1256
1257         /* If there is nothing to do, return immediately */
1258         if ((on && fh->overlay_active != ZORAN_FREE) ||
1259             (!on && fh->overlay_active == ZORAN_FREE))
1260                 return 0;
1261
1262         /* check whether we're touching someone else's overlay */
1263         if (on && zr->overlay_active != ZORAN_FREE &&
1264             fh->overlay_active == ZORAN_FREE) {
1265                 dprintk(1,
1266                         KERN_ERR
1267                         "%s: %s - overlay is already active for another session\n",
1268                         ZR_DEVNAME(zr), __func__);
1269                 return -EBUSY;
1270         }
1271         if (!on && zr->overlay_active != ZORAN_FREE &&
1272             fh->overlay_active == ZORAN_FREE) {
1273                 dprintk(1,
1274                         KERN_ERR
1275                         "%s: %s - you cannot cancel someone else's session\n",
1276                         ZR_DEVNAME(zr), __func__);
1277                 return -EPERM;
1278         }
1279
1280         if (on == 0) {
1281                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1282                 zr->v4l_overlay_active = 0;
1283                 /* When a grab is running, the video simply
1284                  * won't be switched on any more */
1285                 if (!zr->v4l_memgrab_active)
1286                         zr36057_overlay(zr, 0);
1287                 zr->overlay_mask = NULL;
1288         } else {
1289                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1290                         dprintk(1,
1291                                 KERN_ERR
1292                                 "%s: %s - buffer or window not set\n",
1293                                 ZR_DEVNAME(zr), __func__);
1294                         return -EINVAL;
1295                 }
1296                 if (!fh->overlay_settings.format) {
1297                         dprintk(1,
1298                                 KERN_ERR
1299                                 "%s: %s - no overlay format set\n",
1300                                 ZR_DEVNAME(zr), __func__);
1301                         return -EINVAL;
1302                 }
1303                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1304                 zr->v4l_overlay_active = 1;
1305                 zr->overlay_mask = fh->overlay_mask;
1306                 zr->overlay_settings = fh->overlay_settings;
1307                 if (!zr->v4l_memgrab_active)
1308                         zr36057_overlay(zr, 1);
1309                 /* When a grab is running, the video will be
1310                  * switched on when grab is finished */
1311         }
1312
1313         /* Make sure the changes come into effect */
1314         return wait_grab_pending(zr);
1315 }
1316
1317 /* get the status of a buffer in the clients buffer queue */
1318 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1319                                     struct v4l2_buffer *buf, int num)
1320 {
1321         struct zoran *zr = fh->zr;
1322         unsigned long flags;
1323
1324         buf->flags = V4L2_BUF_FLAG_MAPPED;
1325
1326         switch (fh->map_mode) {
1327         case ZORAN_MAP_MODE_RAW:
1328                 /* check range */
1329                 if (num < 0 || num >= fh->buffers.num_buffers ||
1330                     !fh->buffers.allocated) {
1331                         dprintk(1,
1332                                 KERN_ERR
1333                                 "%s: %s - wrong number or buffers not allocated\n",
1334                                 ZR_DEVNAME(zr), __func__);
1335                         return -EINVAL;
1336                 }
1337
1338                 spin_lock_irqsave(&zr->spinlock, flags);
1339                 dprintk(3,
1340                         KERN_DEBUG
1341                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1342                         ZR_DEVNAME(zr), __func__,
1343                         "FAL"[fh->buffers.active], num,
1344                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1345                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1346                 spin_unlock_irqrestore(&zr->spinlock, flags);
1347
1348                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1349                 buf->length = fh->buffers.buffer_size;
1350
1351                 /* get buffer */
1352                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1353                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1354                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1355                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1356                         buf->flags |= V4L2_BUF_FLAG_DONE;
1357                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1358                 } else {
1359                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1360                 }
1361
1362                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1363                         buf->field = V4L2_FIELD_TOP;
1364                 else
1365                         buf->field = V4L2_FIELD_INTERLACED;
1366
1367                 break;
1368
1369         case ZORAN_MAP_MODE_JPG_REC:
1370         case ZORAN_MAP_MODE_JPG_PLAY:
1371
1372                 /* check range */
1373                 if (num < 0 || num >= fh->buffers.num_buffers ||
1374                     !fh->buffers.allocated) {
1375                         dprintk(1,
1376                                 KERN_ERR
1377                                 "%s: %s - wrong number or buffers not allocated\n",
1378                                 ZR_DEVNAME(zr), __func__);
1379                         return -EINVAL;
1380                 }
1381
1382                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1383                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1384                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1385                 buf->length = fh->buffers.buffer_size;
1386
1387                 /* these variables are only written after frame has been captured */
1388                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1389                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1390                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1391                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1392                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1393                         buf->flags |= V4L2_BUF_FLAG_DONE;
1394                 } else {
1395                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1396                 }
1397
1398                 /* which fields are these? */
1399                 if (fh->jpg_settings.TmpDcm != 1)
1400                         buf->field = fh->jpg_settings.odd_even ?
1401                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1402                 else
1403                         buf->field = fh->jpg_settings.odd_even ?
1404                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1405
1406                 break;
1407
1408         default:
1409
1410                 dprintk(5,
1411                         KERN_ERR
1412                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1413                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1414                 return -EINVAL;
1415         }
1416
1417         buf->memory = V4L2_MEMORY_MMAP;
1418         buf->index = num;
1419         buf->m.offset = buf->length * num;
1420
1421         return 0;
1422 }
1423
1424 static int
1425 zoran_set_norm (struct zoran *zr,
1426                 v4l2_std_id norm)
1427 {
1428         int on;
1429
1430         if (zr->v4l_buffers.active != ZORAN_FREE ||
1431             zr->jpg_buffers.active != ZORAN_FREE) {
1432                 dprintk(1,
1433                         KERN_WARNING
1434                         "%s: %s called while in playback/capture mode\n",
1435                         ZR_DEVNAME(zr), __func__);
1436                 return -EBUSY;
1437         }
1438
1439         if (!(norm & zr->card.norms)) {
1440                 dprintk(1,
1441                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1442                         ZR_DEVNAME(zr), __func__, norm);
1443                 return -EINVAL;
1444         }
1445
1446         if (norm == V4L2_STD_ALL) {
1447                 unsigned int status = 0;
1448                 v4l2_std_id std = 0;
1449
1450                 decoder_call(zr, video, querystd, &std);
1451                 decoder_call(zr, core, s_std, std);
1452
1453                 /* let changes come into effect */
1454                 ssleep(2);
1455
1456                 decoder_call(zr, video, g_input_status, &status);
1457                 if (status & V4L2_IN_ST_NO_SIGNAL) {
1458                         dprintk(1,
1459                                 KERN_ERR
1460                                 "%s: %s - no norm detected\n",
1461                                 ZR_DEVNAME(zr), __func__);
1462                         /* reset norm */
1463                         decoder_call(zr, core, s_std, zr->norm);
1464                         return -EIO;
1465                 }
1466
1467                 norm = std;
1468         }
1469         if (norm & V4L2_STD_SECAM)
1470                 zr->timing = zr->card.tvn[2];
1471         else if (norm & V4L2_STD_NTSC)
1472                 zr->timing = zr->card.tvn[1];
1473         else
1474                 zr->timing = zr->card.tvn[0];
1475
1476         /* We switch overlay off and on since a change in the
1477          * norm needs different VFE settings */
1478         on = zr->overlay_active && !zr->v4l_memgrab_active;
1479         if (on)
1480                 zr36057_overlay(zr, 0);
1481
1482         decoder_call(zr, core, s_std, norm);
1483         encoder_call(zr, video, s_std_output, norm);
1484
1485         if (on)
1486                 zr36057_overlay(zr, 1);
1487
1488         /* Make sure the changes come into effect */
1489         zr->norm = norm;
1490
1491         return 0;
1492 }
1493
1494 static int
1495 zoran_set_input (struct zoran *zr,
1496                  int           input)
1497 {
1498         if (input == zr->input) {
1499                 return 0;
1500         }
1501
1502         if (zr->v4l_buffers.active != ZORAN_FREE ||
1503             zr->jpg_buffers.active != ZORAN_FREE) {
1504                 dprintk(1,
1505                         KERN_WARNING
1506                         "%s: %s called while in playback/capture mode\n",
1507                         ZR_DEVNAME(zr), __func__);
1508                 return -EBUSY;
1509         }
1510
1511         if (input < 0 || input >= zr->card.inputs) {
1512                 dprintk(1,
1513                         KERN_ERR
1514                         "%s: %s - unnsupported input %d\n",
1515                         ZR_DEVNAME(zr), __func__, input);
1516                 return -EINVAL;
1517         }
1518
1519         zr->input = input;
1520
1521         decoder_call(zr, video, s_routing,
1522                         zr->card.input[input].muxsel, 0, 0);
1523
1524         return 0;
1525 }
1526
1527 /*
1528  *   ioctl routine
1529  */
1530
1531 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1532 {
1533         struct zoran_fh *fh = __fh;
1534         struct zoran *zr = fh->zr;
1535
1536         memset(cap, 0, sizeof(*cap));
1537         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1538         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1539         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1540                  pci_name(zr->pci_dev));
1541         cap->version = KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
1542                            RELEASE_VERSION);
1543         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1544                             V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1545         return 0;
1546 }
1547
1548 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1549 {
1550         unsigned int num, i;
1551
1552         for (num = i = 0; i < NUM_FORMATS; i++) {
1553                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1554                         strncpy(fmt->description, zoran_formats[i].name,
1555                                 sizeof(fmt->description) - 1);
1556                         /* fmt struct pre-zeroed, so adding '\0' not neeed */
1557                         fmt->pixelformat = zoran_formats[i].fourcc;
1558                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1559                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1560                         return 0;
1561                 }
1562         }
1563         return -EINVAL;
1564 }
1565
1566 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1567                                             struct v4l2_fmtdesc *f)
1568 {
1569         struct zoran_fh *fh = __fh;
1570         struct zoran *zr = fh->zr;
1571
1572         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1573 }
1574
1575 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1576                                             struct v4l2_fmtdesc *f)
1577 {
1578         struct zoran_fh *fh = __fh;
1579         struct zoran *zr = fh->zr;
1580
1581         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1582 }
1583
1584 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1585                                             struct v4l2_fmtdesc *f)
1586 {
1587         struct zoran_fh *fh = __fh;
1588         struct zoran *zr = fh->zr;
1589
1590         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1591 }
1592
1593 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1594                                         struct v4l2_format *fmt)
1595 {
1596         struct zoran_fh *fh = __fh;
1597         struct zoran *zr = fh->zr;
1598
1599         mutex_lock(&zr->resource_lock);
1600
1601         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1602         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1603                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1604         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1605         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1606         if (fh->jpg_settings.TmpDcm == 1)
1607                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1608                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1609         else
1610                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1611                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1612         fmt->fmt.pix.bytesperline = 0;
1613         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1614
1615         mutex_unlock(&zr->resource_lock);
1616         return 0;
1617 }
1618
1619 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1620                                         struct v4l2_format *fmt)
1621 {
1622         struct zoran_fh *fh = __fh;
1623         struct zoran *zr = fh->zr;
1624
1625         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1626                 return zoran_g_fmt_vid_out(file, fh, fmt);
1627
1628         mutex_lock(&zr->resource_lock);
1629         fmt->fmt.pix.width = fh->v4l_settings.width;
1630         fmt->fmt.pix.height = fh->v4l_settings.height;
1631         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1632                                         fh->v4l_settings.height;
1633         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1634         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1635         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1636         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1637                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1638         else
1639                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1640         mutex_unlock(&zr->resource_lock);
1641         return 0;
1642 }
1643
1644 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1645                                         struct v4l2_format *fmt)
1646 {
1647         struct zoran_fh *fh = __fh;
1648         struct zoran *zr = fh->zr;
1649
1650         mutex_lock(&zr->resource_lock);
1651
1652         fmt->fmt.win.w.left = fh->overlay_settings.x;
1653         fmt->fmt.win.w.top = fh->overlay_settings.y;
1654         fmt->fmt.win.w.width = fh->overlay_settings.width;
1655         fmt->fmt.win.w.height = fh->overlay_settings.height;
1656         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1657                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1658         else
1659                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1660
1661         mutex_unlock(&zr->resource_lock);
1662         return 0;
1663 }
1664
1665 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1666                                         struct v4l2_format *fmt)
1667 {
1668         struct zoran_fh *fh = __fh;
1669         struct zoran *zr = fh->zr;
1670
1671         mutex_lock(&zr->resource_lock);
1672
1673         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1674                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1675         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1676                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1677         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1678                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1679         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1680                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1681
1682         mutex_unlock(&zr->resource_lock);
1683         return 0;
1684 }
1685
1686 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1687                                         struct v4l2_format *fmt)
1688 {
1689         struct zoran_fh *fh = __fh;
1690         struct zoran *zr = fh->zr;
1691         struct zoran_jpg_settings settings;
1692         int res = 0;
1693
1694         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1695                 return -EINVAL;
1696
1697         mutex_lock(&zr->resource_lock);
1698         settings = fh->jpg_settings;
1699
1700         /* we actually need to set 'real' parameters now */
1701         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1702                 settings.TmpDcm = 1;
1703         else
1704                 settings.TmpDcm = 2;
1705         settings.decimation = 0;
1706         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1707                 settings.VerDcm = 2;
1708         else
1709                 settings.VerDcm = 1;
1710         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1711                 settings.HorDcm = 4;
1712         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1713                 settings.HorDcm = 2;
1714         else
1715                 settings.HorDcm = 1;
1716         if (settings.TmpDcm == 1)
1717                 settings.field_per_buff = 2;
1718         else
1719                 settings.field_per_buff = 1;
1720
1721         if (settings.HorDcm > 1) {
1722                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1723                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1724         } else {
1725                 settings.img_x = 0;
1726                 settings.img_width = BUZ_MAX_WIDTH;
1727         }
1728
1729         /* check */
1730         res = zoran_check_jpg_settings(zr, &settings, 1);
1731         if (res)
1732                 goto tryfmt_unlock_and_return;
1733
1734         /* tell the user what we actually did */
1735         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1736         fmt->fmt.pix.height = settings.img_height * 2 /
1737                 (settings.TmpDcm * settings.VerDcm);
1738         if (settings.TmpDcm == 1)
1739                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1740                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1741         else
1742                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1743                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1744
1745         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
1746         fmt->fmt.pix.bytesperline = 0;
1747         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1748 tryfmt_unlock_and_return:
1749         mutex_unlock(&zr->resource_lock);
1750         return res;
1751 }
1752
1753 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1754                                         struct v4l2_format *fmt)
1755 {
1756         struct zoran_fh *fh = __fh;
1757         struct zoran *zr = fh->zr;
1758         int bpp;
1759         int i;
1760
1761         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1762                 return zoran_try_fmt_vid_out(file, fh, fmt);
1763
1764         mutex_lock(&zr->resource_lock);
1765
1766         for (i = 0; i < NUM_FORMATS; i++)
1767                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1768                         break;
1769
1770         if (i == NUM_FORMATS) {
1771                 mutex_unlock(&zr->resource_lock);
1772                 return -EINVAL;
1773         }
1774
1775         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1776         v4l_bound_align_image(
1777                 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1778                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
1779         mutex_unlock(&zr->resource_lock);
1780
1781         return 0;
1782 }
1783
1784 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1785                                         struct v4l2_format *fmt)
1786 {
1787         struct zoran_fh *fh = __fh;
1788         struct zoran *zr = fh->zr;
1789         int res;
1790
1791         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1792                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1793                         fmt->fmt.win.w.width,
1794                         fmt->fmt.win.w.height,
1795                         fmt->fmt.win.clipcount,
1796                         fmt->fmt.win.bitmap);
1797         mutex_lock(&zr->resource_lock);
1798         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1799                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1800                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
1801                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
1802         mutex_unlock(&zr->resource_lock);
1803         return res;
1804 }
1805
1806 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1807                                         struct v4l2_format *fmt)
1808 {
1809         struct zoran_fh *fh = __fh;
1810         struct zoran *zr = fh->zr;
1811         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1812         struct zoran_jpg_settings settings;
1813         int res = 0;
1814
1815         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1816                         fmt->fmt.pix.width, fmt->fmt.pix.height,
1817                         fmt->fmt.pix.pixelformat,
1818                         (char *) &printformat);
1819         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1820                 return -EINVAL;
1821
1822         mutex_lock(&zr->resource_lock);
1823
1824         if (fh->buffers.allocated) {
1825                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1826                         ZR_DEVNAME(zr));
1827                 res = -EBUSY;
1828                 goto sfmtjpg_unlock_and_return;
1829         }
1830
1831         settings = fh->jpg_settings;
1832
1833         /* we actually need to set 'real' parameters now */
1834         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
1835                 settings.TmpDcm = 1;
1836         else
1837                 settings.TmpDcm = 2;
1838         settings.decimation = 0;
1839         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1840                 settings.VerDcm = 2;
1841         else
1842                 settings.VerDcm = 1;
1843         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1844                 settings.HorDcm = 4;
1845         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1846                 settings.HorDcm = 2;
1847         else
1848                 settings.HorDcm = 1;
1849         if (settings.TmpDcm == 1)
1850                 settings.field_per_buff = 2;
1851         else
1852                 settings.field_per_buff = 1;
1853
1854         if (settings.HorDcm > 1) {
1855                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1856                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1857         } else {
1858                 settings.img_x = 0;
1859                 settings.img_width = BUZ_MAX_WIDTH;
1860         }
1861
1862         /* check */
1863         res = zoran_check_jpg_settings(zr, &settings, 0);
1864         if (res)
1865                 goto sfmtjpg_unlock_and_return;
1866
1867         /* it's ok, so set them */
1868         fh->jpg_settings = settings;
1869
1870         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1871         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1872
1873         /* tell the user what we actually did */
1874         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1875         fmt->fmt.pix.height = settings.img_height * 2 /
1876                 (settings.TmpDcm * settings.VerDcm);
1877         if (settings.TmpDcm == 1)
1878                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1879                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1880         else
1881                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1882                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1883         fmt->fmt.pix.bytesperline = 0;
1884         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
1885         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1886
1887 sfmtjpg_unlock_and_return:
1888         mutex_unlock(&zr->resource_lock);
1889         return res;
1890 }
1891
1892 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1893                                         struct v4l2_format *fmt)
1894 {
1895         struct zoran_fh *fh = __fh;
1896         struct zoran *zr = fh->zr;
1897         int i;
1898         int res = 0;
1899
1900         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1901                 return zoran_s_fmt_vid_out(file, fh, fmt);
1902
1903         for (i = 0; i < NUM_FORMATS; i++)
1904                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1905                         break;
1906         if (i == NUM_FORMATS) {
1907                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1908                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1909                 return -EINVAL;
1910         }
1911
1912         mutex_lock(&zr->resource_lock);
1913
1914         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1915             fh->buffers.active != ZORAN_FREE) {
1916                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1917                                 ZR_DEVNAME(zr));
1918                 res = -EBUSY;
1919                 goto sfmtv4l_unlock_and_return;
1920         }
1921         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1922                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1923         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1924                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1925
1926         map_mode_raw(fh);
1927
1928         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1929                                    &zoran_formats[i]);
1930         if (res)
1931                 goto sfmtv4l_unlock_and_return;
1932
1933         /* tell the user the results/missing stuff */
1934         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1935         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1936         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1937         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1938                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1939         else
1940                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1941
1942 sfmtv4l_unlock_and_return:
1943         mutex_unlock(&zr->resource_lock);
1944         return res;
1945 }
1946
1947 static int zoran_g_fbuf(struct file *file, void *__fh,
1948                 struct v4l2_framebuffer *fb)
1949 {
1950         struct zoran_fh *fh = __fh;
1951         struct zoran *zr = fh->zr;
1952
1953         memset(fb, 0, sizeof(*fb));
1954         mutex_lock(&zr->resource_lock);
1955         fb->base = zr->vbuf_base;
1956         fb->fmt.width = zr->vbuf_width;
1957         fb->fmt.height = zr->vbuf_height;
1958         if (zr->overlay_settings.format)
1959                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
1960         fb->fmt.bytesperline = zr->vbuf_bytesperline;
1961         mutex_unlock(&zr->resource_lock);
1962         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1963         fb->fmt.field = V4L2_FIELD_INTERLACED;
1964         fb->flags = V4L2_FBUF_FLAG_OVERLAY;
1965         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1966
1967         return 0;
1968 }
1969
1970 static int zoran_s_fbuf(struct file *file, void *__fh,
1971                 struct v4l2_framebuffer *fb)
1972 {
1973         struct zoran_fh *fh = __fh;
1974         struct zoran *zr = fh->zr;
1975         int i, res = 0;
1976         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1977
1978         for (i = 0; i < NUM_FORMATS; i++)
1979                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1980                         break;
1981         if (i == NUM_FORMATS) {
1982                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1983                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
1984                         (char *)&printformat);
1985                 return -EINVAL;
1986         }
1987
1988         mutex_lock(&zr->resource_lock);
1989         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
1990                             fb->fmt.height, fb->fmt.bytesperline);
1991         mutex_unlock(&zr->resource_lock);
1992
1993         return res;
1994 }
1995
1996 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
1997 {
1998         struct zoran_fh *fh = __fh;
1999         struct zoran *zr = fh->zr;
2000         int res;
2001
2002         mutex_lock(&zr->resource_lock);
2003         res = setup_overlay(fh, on);
2004         mutex_unlock(&zr->resource_lock);
2005
2006         return res;
2007 }
2008
2009 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
2010
2011 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2012 {
2013         struct zoran_fh *fh = __fh;
2014         struct zoran *zr = fh->zr;
2015         int res = 0;
2016
2017         if (req->memory != V4L2_MEMORY_MMAP) {
2018                 dprintk(2,
2019                                 KERN_ERR
2020                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2021                                 ZR_DEVNAME(zr), req->memory);
2022                 return -EINVAL;
2023         }
2024
2025         if (req->count == 0)
2026                 return zoran_streamoff(file, fh, req->type);
2027
2028         mutex_lock(&zr->resource_lock);
2029         if (fh->buffers.allocated) {
2030                 dprintk(2,
2031                                 KERN_ERR
2032                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
2033                                 ZR_DEVNAME(zr));
2034                 res = -EBUSY;
2035                 goto v4l2reqbuf_unlock_and_return;
2036         }
2037
2038         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
2039             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2040                 /* control user input */
2041                 if (req->count < 2)
2042                         req->count = 2;
2043                 if (req->count > v4l_nbufs)
2044                         req->count = v4l_nbufs;
2045
2046                 /* The next mmap will map the V4L buffers */
2047                 map_mode_raw(fh);
2048                 fh->buffers.num_buffers = req->count;
2049
2050                 if (v4l_fbuffer_alloc(fh)) {
2051                         res = -ENOMEM;
2052                         goto v4l2reqbuf_unlock_and_return;
2053                 }
2054         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
2055                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2056                 /* we need to calculate size ourselves now */
2057                 if (req->count < 4)
2058                         req->count = 4;
2059                 if (req->count > jpg_nbufs)
2060                         req->count = jpg_nbufs;
2061
2062                 /* The next mmap will map the MJPEG buffers */
2063                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2064                 fh->buffers.num_buffers = req->count;
2065                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2066
2067                 if (jpg_fbuffer_alloc(fh)) {
2068                         res = -ENOMEM;
2069                         goto v4l2reqbuf_unlock_and_return;
2070                 }
2071         } else {
2072                 dprintk(1,
2073                                 KERN_ERR
2074                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2075                                 ZR_DEVNAME(zr), req->type);
2076                 res = -EINVAL;
2077                 goto v4l2reqbuf_unlock_and_return;
2078         }
2079 v4l2reqbuf_unlock_and_return:
2080         mutex_unlock(&zr->resource_lock);
2081
2082         return res;
2083 }
2084
2085 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2086 {
2087         struct zoran_fh *fh = __fh;
2088         struct zoran *zr = fh->zr;
2089         int res;
2090
2091         mutex_lock(&zr->resource_lock);
2092         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2093         mutex_unlock(&zr->resource_lock);
2094
2095         return res;
2096 }
2097
2098 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2099 {
2100         struct zoran_fh *fh = __fh;
2101         struct zoran *zr = fh->zr;
2102         int res = 0, codec_mode, buf_type;
2103
2104         mutex_lock(&zr->resource_lock);
2105
2106         switch (fh->map_mode) {
2107         case ZORAN_MAP_MODE_RAW:
2108                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2109                         dprintk(1, KERN_ERR
2110                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2111                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2112                         res = -EINVAL;
2113                         goto qbuf_unlock_and_return;
2114                 }
2115
2116                 res = zoran_v4l_queue_frame(fh, buf->index);
2117                 if (res)
2118                         goto qbuf_unlock_and_return;
2119                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2120                         zr36057_set_memgrab(zr, 1);
2121                 break;
2122
2123         case ZORAN_MAP_MODE_JPG_REC:
2124         case ZORAN_MAP_MODE_JPG_PLAY:
2125                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2126                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2127                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2128                 } else {
2129                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2130                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2131                 }
2132
2133                 if (buf->type != buf_type) {
2134                         dprintk(1, KERN_ERR
2135                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2136                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2137                         res = -EINVAL;
2138                         goto qbuf_unlock_and_return;
2139                 }
2140
2141                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2142                 if (res != 0)
2143                         goto qbuf_unlock_and_return;
2144                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2145                     fh->buffers.active == ZORAN_LOCKED)
2146                         zr36057_enable_jpg(zr, codec_mode);
2147
2148                 break;
2149
2150         default:
2151                 dprintk(1, KERN_ERR
2152                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2153                         ZR_DEVNAME(zr), buf->type);
2154                 res = -EINVAL;
2155                 break;
2156         }
2157 qbuf_unlock_and_return:
2158         mutex_unlock(&zr->resource_lock);
2159
2160         return res;
2161 }
2162
2163 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2164 {
2165         struct zoran_fh *fh = __fh;
2166         struct zoran *zr = fh->zr;
2167         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2168
2169         mutex_lock(&zr->resource_lock);
2170
2171         switch (fh->map_mode) {
2172         case ZORAN_MAP_MODE_RAW:
2173                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2174                         dprintk(1, KERN_ERR
2175                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2176                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2177                         res = -EINVAL;
2178                         goto dqbuf_unlock_and_return;
2179                 }
2180
2181                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2182                 if (file->f_flags & O_NONBLOCK &&
2183                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2184                         res = -EAGAIN;
2185                         goto dqbuf_unlock_and_return;
2186                 }
2187                 res = v4l_sync(fh, num);
2188                 if (res)
2189                         goto dqbuf_unlock_and_return;
2190                 zr->v4l_sync_tail++;
2191                 res = zoran_v4l2_buffer_status(fh, buf, num);
2192                 break;
2193
2194         case ZORAN_MAP_MODE_JPG_REC:
2195         case ZORAN_MAP_MODE_JPG_PLAY:
2196         {
2197                 struct zoran_sync bs;
2198
2199                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2200                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2201                 else
2202                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2203
2204                 if (buf->type != buf_type) {
2205                         dprintk(1, KERN_ERR
2206                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2207                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2208                         res = -EINVAL;
2209                         goto dqbuf_unlock_and_return;
2210                 }
2211
2212                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2213
2214                 if (file->f_flags & O_NONBLOCK &&
2215                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2216                         res = -EAGAIN;
2217                         goto dqbuf_unlock_and_return;
2218                 }
2219                 bs.frame = 0; /* suppress compiler warning */
2220                 res = jpg_sync(fh, &bs);
2221                 if (res)
2222                         goto dqbuf_unlock_and_return;
2223                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2224                 break;
2225         }
2226
2227         default:
2228                 dprintk(1, KERN_ERR
2229                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2230                         ZR_DEVNAME(zr), buf->type);
2231                 res = -EINVAL;
2232                 break;
2233         }
2234 dqbuf_unlock_and_return:
2235         mutex_unlock(&zr->resource_lock);
2236
2237         return res;
2238 }
2239
2240 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2241 {
2242         struct zoran_fh *fh = __fh;
2243         struct zoran *zr = fh->zr;
2244         int res = 0;
2245
2246         mutex_lock(&zr->resource_lock);
2247
2248         switch (fh->map_mode) {
2249         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2250                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2251                     fh->buffers.active != ZORAN_ACTIVE) {
2252                         res = -EBUSY;
2253                         goto strmon_unlock_and_return;
2254                 }
2255
2256                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2257                 zr->v4l_settings = fh->v4l_settings;
2258
2259                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2260                 if (!zr->v4l_memgrab_active &&
2261                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2262                         zr36057_set_memgrab(zr, 1);
2263                 }
2264                 break;
2265
2266         case ZORAN_MAP_MODE_JPG_REC:
2267         case ZORAN_MAP_MODE_JPG_PLAY:
2268                 /* what is the codec mode right now? */
2269                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2270                     fh->buffers.active != ZORAN_ACTIVE) {
2271                         res = -EBUSY;
2272                         goto strmon_unlock_and_return;
2273                 }
2274
2275                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2276
2277                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2278                         /* Start the jpeg codec when the first frame is queued  */
2279                         jpeg_start(zr);
2280                 }
2281                 break;
2282
2283         default:
2284                 dprintk(1,
2285                         KERN_ERR
2286                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2287                         ZR_DEVNAME(zr), fh->map_mode);
2288                 res = -EINVAL;
2289                 break;
2290         }
2291 strmon_unlock_and_return:
2292         mutex_unlock(&zr->resource_lock);
2293
2294         return res;
2295 }
2296
2297 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2298 {
2299         struct zoran_fh *fh = __fh;
2300         struct zoran *zr = fh->zr;
2301         int i, res = 0;
2302         unsigned long flags;
2303
2304         mutex_lock(&zr->resource_lock);
2305
2306         switch (fh->map_mode) {
2307         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2308                 if (fh->buffers.active == ZORAN_FREE &&
2309                     zr->v4l_buffers.active != ZORAN_FREE) {
2310                         res = -EPERM;   /* stay off other's settings! */
2311                         goto strmoff_unlock_and_return;
2312                 }
2313                 if (zr->v4l_buffers.active == ZORAN_FREE)
2314                         goto strmoff_unlock_and_return;
2315
2316                 spin_lock_irqsave(&zr->spinlock, flags);
2317                 /* unload capture */
2318                 if (zr->v4l_memgrab_active) {
2319
2320                         zr36057_set_memgrab(zr, 0);
2321                 }
2322
2323                 for (i = 0; i < fh->buffers.num_buffers; i++)
2324                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2325                 fh->buffers = zr->v4l_buffers;
2326
2327                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2328
2329                 zr->v4l_grab_seq = 0;
2330                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2331                 zr->v4l_sync_tail = 0;
2332
2333                 spin_unlock_irqrestore(&zr->spinlock, flags);
2334
2335                 break;
2336
2337         case ZORAN_MAP_MODE_JPG_REC:
2338         case ZORAN_MAP_MODE_JPG_PLAY:
2339                 if (fh->buffers.active == ZORAN_FREE &&
2340                     zr->jpg_buffers.active != ZORAN_FREE) {
2341                         res = -EPERM;   /* stay off other's settings! */
2342                         goto strmoff_unlock_and_return;
2343                 }
2344                 if (zr->jpg_buffers.active == ZORAN_FREE)
2345                         goto strmoff_unlock_and_return;
2346
2347                 res = jpg_qbuf(fh, -1,
2348                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2349                              BUZ_MODE_MOTION_COMPRESS :
2350                              BUZ_MODE_MOTION_DECOMPRESS);
2351                 if (res)
2352                         goto strmoff_unlock_and_return;
2353                 break;
2354         default:
2355                 dprintk(1, KERN_ERR
2356                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2357                         ZR_DEVNAME(zr), fh->map_mode);
2358                 res = -EINVAL;
2359                 break;
2360         }
2361 strmoff_unlock_and_return:
2362         mutex_unlock(&zr->resource_lock);
2363
2364         return res;
2365 }
2366
2367 static int zoran_queryctrl(struct file *file, void *__fh,
2368                                         struct v4l2_queryctrl *ctrl)
2369 {
2370         struct zoran_fh *fh = __fh;
2371         struct zoran *zr = fh->zr;
2372
2373         /* we only support hue/saturation/contrast/brightness */
2374         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2375             ctrl->id > V4L2_CID_HUE)
2376                 return -EINVAL;
2377
2378         decoder_call(zr, core, queryctrl, ctrl);
2379
2380         return 0;
2381 }
2382
2383 static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2384 {
2385         struct zoran_fh *fh = __fh;
2386         struct zoran *zr = fh->zr;
2387
2388         /* we only support hue/saturation/contrast/brightness */
2389         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2390             ctrl->id > V4L2_CID_HUE)
2391                 return -EINVAL;
2392
2393         mutex_lock(&zr->resource_lock);
2394         decoder_call(zr, core, g_ctrl, ctrl);
2395         mutex_unlock(&zr->resource_lock);
2396
2397         return 0;
2398 }
2399
2400 static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2401 {
2402         struct zoran_fh *fh = __fh;
2403         struct zoran *zr = fh->zr;
2404
2405         /* we only support hue/saturation/contrast/brightness */
2406         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2407             ctrl->id > V4L2_CID_HUE)
2408                 return -EINVAL;
2409
2410         mutex_lock(&zr->resource_lock);
2411         decoder_call(zr, core, s_ctrl, ctrl);
2412         mutex_unlock(&zr->resource_lock);
2413
2414         return 0;
2415 }
2416
2417 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2418 {
2419         struct zoran_fh *fh = __fh;
2420         struct zoran *zr = fh->zr;
2421
2422         mutex_lock(&zr->resource_lock);
2423         *std = zr->norm;
2424         mutex_unlock(&zr->resource_lock);
2425         return 0;
2426 }
2427
2428 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id *std)
2429 {
2430         struct zoran_fh *fh = __fh;
2431         struct zoran *zr = fh->zr;
2432         int res = 0;
2433
2434         mutex_lock(&zr->resource_lock);
2435         res = zoran_set_norm(zr, *std);
2436         if (res)
2437                 goto sstd_unlock_and_return;
2438
2439         res = wait_grab_pending(zr);
2440 sstd_unlock_and_return:
2441         mutex_unlock(&zr->resource_lock);
2442         return res;
2443 }
2444
2445 static int zoran_enum_input(struct file *file, void *__fh,
2446                                  struct v4l2_input *inp)
2447 {
2448         struct zoran_fh *fh = __fh;
2449         struct zoran *zr = fh->zr;
2450
2451         if (inp->index >= zr->card.inputs)
2452                 return -EINVAL;
2453
2454         strncpy(inp->name, zr->card.input[inp->index].name,
2455                 sizeof(inp->name) - 1);
2456         inp->type = V4L2_INPUT_TYPE_CAMERA;
2457         inp->std = V4L2_STD_ALL;
2458
2459         /* Get status of video decoder */
2460         mutex_lock(&zr->resource_lock);
2461         decoder_call(zr, video, g_input_status, &inp->status);
2462         mutex_unlock(&zr->resource_lock);
2463         return 0;
2464 }
2465
2466 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2467 {
2468         struct zoran_fh *fh = __fh;
2469         struct zoran *zr = fh->zr;
2470
2471         mutex_lock(&zr->resource_lock);
2472         *input = zr->input;
2473         mutex_unlock(&zr->resource_lock);
2474
2475         return 0;
2476 }
2477
2478 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2479 {
2480         struct zoran_fh *fh = __fh;
2481         struct zoran *zr = fh->zr;
2482         int res;
2483
2484         mutex_lock(&zr->resource_lock);
2485         res = zoran_set_input(zr, input);
2486         if (res)
2487                 goto sinput_unlock_and_return;
2488
2489         /* Make sure the changes come into effect */
2490         res = wait_grab_pending(zr);
2491 sinput_unlock_and_return:
2492         mutex_unlock(&zr->resource_lock);
2493         return res;
2494 }
2495
2496 static int zoran_enum_output(struct file *file, void *__fh,
2497                                   struct v4l2_output *outp)
2498 {
2499         if (outp->index != 0)
2500                 return -EINVAL;
2501
2502         outp->index = 0;
2503         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2504         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2505
2506         return 0;
2507 }
2508
2509 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2510 {
2511         *output = 0;
2512
2513         return 0;
2514 }
2515
2516 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2517 {
2518         if (output != 0)
2519                 return -EINVAL;
2520
2521         return 0;
2522 }
2523
2524 /* cropping (sub-frame capture) */
2525 static int zoran_cropcap(struct file *file, void *__fh,
2526                                         struct v4l2_cropcap *cropcap)
2527 {
2528         struct zoran_fh *fh = __fh;
2529         struct zoran *zr = fh->zr;
2530         int type = cropcap->type, res = 0;
2531
2532         memset(cropcap, 0, sizeof(*cropcap));
2533         cropcap->type = type;
2534
2535         mutex_lock(&zr->resource_lock);
2536
2537         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2538             (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2539              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2540                 dprintk(1, KERN_ERR
2541                         "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
2542                         ZR_DEVNAME(zr));
2543                 res = -EINVAL;
2544                 goto cropcap_unlock_and_return;
2545         }
2546
2547         cropcap->bounds.top = cropcap->bounds.left = 0;
2548         cropcap->bounds.width = BUZ_MAX_WIDTH;
2549         cropcap->bounds.height = BUZ_MAX_HEIGHT;
2550         cropcap->defrect.top = cropcap->defrect.left = 0;
2551         cropcap->defrect.width = BUZ_MIN_WIDTH;
2552         cropcap->defrect.height = BUZ_MIN_HEIGHT;
2553 cropcap_unlock_and_return:
2554         mutex_unlock(&zr->resource_lock);
2555         return res;
2556 }
2557
2558 static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2559 {
2560         struct zoran_fh *fh = __fh;
2561         struct zoran *zr = fh->zr;
2562         int type = crop->type, res = 0;
2563
2564         memset(crop, 0, sizeof(*crop));
2565         crop->type = type;
2566
2567         mutex_lock(&zr->resource_lock);
2568
2569         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2570             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2571              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2572                 dprintk(1,
2573                         KERN_ERR
2574                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2575                         ZR_DEVNAME(zr));
2576                 res = -EINVAL;
2577                 goto gcrop_unlock_and_return;
2578         }
2579
2580         crop->c.top = fh->jpg_settings.img_y;
2581         crop->c.left = fh->jpg_settings.img_x;
2582         crop->c.width = fh->jpg_settings.img_width;
2583         crop->c.height = fh->jpg_settings.img_height;
2584
2585 gcrop_unlock_and_return:
2586         mutex_unlock(&zr->resource_lock);
2587
2588         return res;
2589 }
2590
2591 static int zoran_s_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2592 {
2593         struct zoran_fh *fh = __fh;
2594         struct zoran *zr = fh->zr;
2595         int res = 0;
2596         struct zoran_jpg_settings settings;
2597
2598         settings = fh->jpg_settings;
2599
2600         mutex_lock(&zr->resource_lock);
2601
2602         if (fh->buffers.allocated) {
2603                 dprintk(1, KERN_ERR
2604                         "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2605                         ZR_DEVNAME(zr));
2606                 res = -EBUSY;
2607                 goto scrop_unlock_and_return;
2608         }
2609
2610         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2611             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2612              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2613                 dprintk(1, KERN_ERR
2614                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2615                         ZR_DEVNAME(zr));
2616                 res = -EINVAL;
2617                 goto scrop_unlock_and_return;
2618         }
2619
2620         /* move into a form that we understand */
2621         settings.img_x = crop->c.left;
2622         settings.img_y = crop->c.top;
2623         settings.img_width = crop->c.width;
2624         settings.img_height = crop->c.height;
2625
2626         /* check validity */
2627         res = zoran_check_jpg_settings(zr, &settings, 0);
2628         if (res)
2629                 goto scrop_unlock_and_return;
2630
2631         /* accept */
2632         fh->jpg_settings = settings;
2633
2634 scrop_unlock_and_return:
2635         mutex_unlock(&zr->resource_lock);
2636         return res;
2637 }
2638
2639 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2640                                         struct v4l2_jpegcompression *params)
2641 {
2642         struct zoran_fh *fh = __fh;
2643         struct zoran *zr = fh->zr;
2644         memset(params, 0, sizeof(*params));
2645
2646         mutex_lock(&zr->resource_lock);
2647
2648         params->quality = fh->jpg_settings.jpg_comp.quality;
2649         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2650         memcpy(params->APP_data,
2651                fh->jpg_settings.jpg_comp.APP_data,
2652                fh->jpg_settings.jpg_comp.APP_len);
2653         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2654         memcpy(params->COM_data,
2655                fh->jpg_settings.jpg_comp.COM_data,
2656                fh->jpg_settings.jpg_comp.COM_len);
2657         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2658         params->jpeg_markers =
2659             fh->jpg_settings.jpg_comp.jpeg_markers;
2660
2661         mutex_unlock(&zr->resource_lock);
2662
2663         return 0;
2664 }
2665
2666 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2667                                         struct v4l2_jpegcompression *params)
2668 {
2669         struct zoran_fh *fh = __fh;
2670         struct zoran *zr = fh->zr;
2671         int res = 0;
2672         struct zoran_jpg_settings settings;
2673
2674         settings = fh->jpg_settings;
2675
2676         settings.jpg_comp = *params;
2677
2678         mutex_lock(&zr->resource_lock);
2679
2680         if (fh->buffers.active != ZORAN_FREE) {
2681                 dprintk(1, KERN_WARNING
2682                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2683                         ZR_DEVNAME(zr));
2684                 res = -EBUSY;
2685                 goto sjpegc_unlock_and_return;
2686         }
2687
2688         res = zoran_check_jpg_settings(zr, &settings, 0);
2689         if (res)
2690                 goto sjpegc_unlock_and_return;
2691         if (!fh->buffers.allocated)
2692                 fh->buffers.buffer_size =
2693                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2694         fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
2695 sjpegc_unlock_and_return:
2696         mutex_unlock(&zr->resource_lock);
2697
2698         return res;
2699 }
2700
2701 static unsigned int
2702 zoran_poll (struct file *file,
2703             poll_table  *wait)
2704 {
2705         struct zoran_fh *fh = file->private_data;
2706         struct zoran *zr = fh->zr;
2707         int res = 0, frame;
2708         unsigned long flags;
2709
2710         /* we should check whether buffers are ready to be synced on
2711          * (w/o waits - O_NONBLOCK) here
2712          * if ready for read (sync), return POLLIN|POLLRDNORM,
2713          * if ready for write (sync), return POLLOUT|POLLWRNORM,
2714          * if error, return POLLERR,
2715          * if no buffers queued or so, return POLLNVAL
2716          */
2717
2718         mutex_lock(&zr->resource_lock);
2719
2720         switch (fh->map_mode) {
2721         case ZORAN_MAP_MODE_RAW:
2722                 poll_wait(file, &zr->v4l_capq, wait);
2723                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2724
2725                 spin_lock_irqsave(&zr->spinlock, flags);
2726                 dprintk(3,
2727                         KERN_DEBUG
2728                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
2729                         ZR_DEVNAME(zr), __func__,
2730                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
2731                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
2732                         zr->v4l_pend_tail, zr->v4l_pend_head);
2733                 /* Process is the one capturing? */
2734                 if (fh->buffers.active != ZORAN_FREE &&
2735                     /* Buffer ready to DQBUF? */
2736                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
2737                         res = POLLIN | POLLRDNORM;
2738                 spin_unlock_irqrestore(&zr->spinlock, flags);
2739
2740                 break;
2741
2742         case ZORAN_MAP_MODE_JPG_REC:
2743         case ZORAN_MAP_MODE_JPG_PLAY:
2744                 poll_wait(file, &zr->jpg_capq, wait);
2745                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2746
2747                 spin_lock_irqsave(&zr->spinlock, flags);
2748                 dprintk(3,
2749                         KERN_DEBUG
2750                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
2751                         ZR_DEVNAME(zr), __func__,
2752                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
2753                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
2754                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
2755                 if (fh->buffers.active != ZORAN_FREE &&
2756                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
2757                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2758                                 res = POLLIN | POLLRDNORM;
2759                         else
2760                                 res = POLLOUT | POLLWRNORM;
2761                 }
2762                 spin_unlock_irqrestore(&zr->spinlock, flags);
2763
2764                 break;
2765
2766         default:
2767                 dprintk(1,
2768                         KERN_ERR
2769                         "%s: %s - internal error, unknown map_mode=%d\n",
2770                         ZR_DEVNAME(zr), __func__, fh->map_mode);
2771                 res = POLLNVAL;
2772         }
2773
2774         mutex_unlock(&zr->resource_lock);
2775
2776         return res;
2777 }
2778
2779
2780 /*
2781  * This maps the buffers to user space.
2782  *
2783  * Depending on the state of fh->map_mode
2784  * the V4L or the MJPEG buffers are mapped
2785  * per buffer or all together
2786  *
2787  * Note that we need to connect to some
2788  * unmap signal event to unmap the de-allocate
2789  * the buffer accordingly (zoran_vm_close())
2790  */
2791
2792 static void
2793 zoran_vm_open (struct vm_area_struct *vma)
2794 {
2795         struct zoran_mapping *map = vma->vm_private_data;
2796
2797         map->count++;
2798 }
2799
2800 static void
2801 zoran_vm_close (struct vm_area_struct *vma)
2802 {
2803         struct zoran_mapping *map = vma->vm_private_data;
2804         struct zoran_fh *fh = map->file->private_data;
2805         struct zoran *zr = fh->zr;
2806         int i;
2807
2808         if (--map->count > 0)
2809                 return;
2810
2811         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2812                 __func__, mode_name(fh->map_mode));
2813
2814         for (i = 0; i < fh->buffers.num_buffers; i++) {
2815                 if (fh->buffers.buffer[i].map == map)
2816                         fh->buffers.buffer[i].map = NULL;
2817         }
2818         kfree(map);
2819
2820         /* Any buffers still mapped? */
2821         for (i = 0; i < fh->buffers.num_buffers; i++)
2822                 if (fh->buffers.buffer[i].map)
2823                         return;
2824
2825         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2826                 __func__, mode_name(fh->map_mode));
2827
2828         mutex_lock(&zr->resource_lock);
2829
2830         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2831                 if (fh->buffers.active != ZORAN_FREE) {
2832                         unsigned long flags;
2833
2834                         spin_lock_irqsave(&zr->spinlock, flags);
2835                         zr36057_set_memgrab(zr, 0);
2836                         zr->v4l_buffers.allocated = 0;
2837                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2838                         spin_unlock_irqrestore(&zr->spinlock, flags);
2839                 }
2840                 v4l_fbuffer_free(fh);
2841         } else {
2842                 if (fh->buffers.active != ZORAN_FREE) {
2843                         jpg_qbuf(fh, -1, zr->codec_mode);
2844                         zr->jpg_buffers.allocated = 0;
2845                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
2846                 }
2847                 jpg_fbuffer_free(fh);
2848         }
2849
2850         mutex_unlock(&zr->resource_lock);
2851 }
2852
2853 static const struct vm_operations_struct zoran_vm_ops = {
2854         .open = zoran_vm_open,
2855         .close = zoran_vm_close,
2856 };
2857
2858 static int
2859 zoran_mmap (struct file           *file,
2860             struct vm_area_struct *vma)
2861 {
2862         struct zoran_fh *fh = file->private_data;
2863         struct zoran *zr = fh->zr;
2864         unsigned long size = (vma->vm_end - vma->vm_start);
2865         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2866         int i, j;
2867         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2868         int first, last;
2869         struct zoran_mapping *map;
2870         int res = 0;
2871
2872         dprintk(3,
2873                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2874                 ZR_DEVNAME(zr), __func__,
2875                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
2876
2877         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2878             !(vma->vm_flags & VM_WRITE)) {
2879                 dprintk(1,
2880                         KERN_ERR
2881                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2882                         ZR_DEVNAME(zr), __func__);
2883                 return -EINVAL;
2884         }
2885
2886         mutex_lock(&zr->resource_lock);
2887
2888         if (!fh->buffers.allocated) {
2889                 dprintk(1,
2890                         KERN_ERR
2891                         "%s: %s(%s) - buffers not yet allocated\n",
2892                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
2893                 res = -ENOMEM;
2894                 goto mmap_unlock_and_return;
2895         }
2896
2897         first = offset / fh->buffers.buffer_size;
2898         last = first - 1 + size / fh->buffers.buffer_size;
2899         if (offset % fh->buffers.buffer_size != 0 ||
2900             size % fh->buffers.buffer_size != 0 || first < 0 ||
2901             last < 0 || first >= fh->buffers.num_buffers ||
2902             last >= fh->buffers.buffer_size) {
2903                 dprintk(1,
2904                         KERN_ERR
2905                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2906                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
2907                         fh->buffers.buffer_size,
2908                         fh->buffers.num_buffers);
2909                 res = -EINVAL;
2910                 goto mmap_unlock_and_return;
2911         }
2912
2913         /* Check if any buffers are already mapped */
2914         for (i = first; i <= last; i++) {
2915                 if (fh->buffers.buffer[i].map) {
2916                         dprintk(1,
2917                                 KERN_ERR
2918                                 "%s: %s(%s) - buffer %d already mapped\n",
2919                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
2920                         res = -EBUSY;
2921                         goto mmap_unlock_and_return;
2922                 }
2923         }
2924
2925         /* map these buffers */
2926         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2927         if (!map) {
2928                 res = -ENOMEM;
2929                 goto mmap_unlock_and_return;
2930         }
2931         map->file = file;
2932         map->count = 1;
2933
2934         vma->vm_ops = &zoran_vm_ops;
2935         vma->vm_flags |= VM_DONTEXPAND;
2936         vma->vm_private_data = map;
2937
2938         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2939                 for (i = first; i <= last; i++) {
2940                         todo = size;
2941                         if (todo > fh->buffers.buffer_size)
2942                                 todo = fh->buffers.buffer_size;
2943                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2944                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2945                                                         todo, PAGE_SHARED)) {
2946                                 dprintk(1,
2947                                         KERN_ERR
2948                                         "%s: %s(V4L) - remap_pfn_range failed\n",
2949                                         ZR_DEVNAME(zr), __func__);
2950                                 res = -EAGAIN;
2951                                 goto mmap_unlock_and_return;
2952                         }
2953                         size -= todo;
2954                         start += todo;
2955                         fh->buffers.buffer[i].map = map;
2956                         if (size == 0)
2957                                 break;
2958                 }
2959         } else {
2960                 for (i = first; i <= last; i++) {
2961                         for (j = 0;
2962                              j < fh->buffers.buffer_size / PAGE_SIZE;
2963                              j++) {
2964                                 fraglen =
2965                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
2966                                      frag_tab[2 * j + 1]) & ~1) << 1;
2967                                 todo = size;
2968                                 if (todo > fraglen)
2969                                         todo = fraglen;
2970                                 pos =
2971                                     le32_to_cpu(fh->buffers.
2972                                     buffer[i].jpg.frag_tab[2 * j]);
2973                                 /* should just be pos on i386 */
2974                                 page = virt_to_phys(bus_to_virt(pos))
2975                                                                 >> PAGE_SHIFT;
2976                                 if (remap_pfn_range(vma, start, page,
2977                                                         todo, PAGE_SHARED)) {
2978                                         dprintk(1,
2979                                                 KERN_ERR
2980                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
2981                                                 ZR_DEVNAME(zr), __func__);
2982                                         res = -EAGAIN;
2983                                         goto mmap_unlock_and_return;
2984                                 }
2985                                 size -= todo;
2986                                 start += todo;
2987                                 if (size == 0)
2988                                         break;
2989                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
2990                                     frag_tab[2 * j + 1]) & 1)
2991                                         break;  /* was last fragment */
2992                         }
2993                         fh->buffers.buffer[i].map = map;
2994                         if (size == 0)
2995                                 break;
2996
2997                 }
2998         }
2999
3000 mmap_unlock_and_return:
3001         mutex_unlock(&zr->resource_lock);
3002
3003         return res;
3004 }
3005
3006 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
3007         .vidioc_querycap                    = zoran_querycap,
3008         .vidioc_cropcap                     = zoran_cropcap,
3009         .vidioc_s_crop                      = zoran_s_crop,
3010         .vidioc_g_crop                      = zoran_g_crop,
3011         .vidioc_enum_input                  = zoran_enum_input,
3012         .vidioc_g_input                     = zoran_g_input,
3013         .vidioc_s_input                     = zoran_s_input,
3014         .vidioc_enum_output                 = zoran_enum_output,
3015         .vidioc_g_output                    = zoran_g_output,
3016         .vidioc_s_output                    = zoran_s_output,
3017         .vidioc_g_fbuf                      = zoran_g_fbuf,
3018         .vidioc_s_fbuf                      = zoran_s_fbuf,
3019         .vidioc_g_std                       = zoran_g_std,
3020         .vidioc_s_std                       = zoran_s_std,
3021         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
3022         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
3023         .vidioc_overlay                     = zoran_overlay,
3024         .vidioc_reqbufs                     = zoran_reqbufs,
3025         .vidioc_querybuf                    = zoran_querybuf,
3026         .vidioc_qbuf                        = zoran_qbuf,
3027         .vidioc_dqbuf                       = zoran_dqbuf,
3028         .vidioc_streamon                    = zoran_streamon,
3029         .vidioc_streamoff                   = zoran_streamoff,
3030         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
3031         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
3032         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
3033         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
3034         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
3035         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
3036         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
3037         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
3038         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
3039         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
3040         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
3041         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
3042         .vidioc_queryctrl                   = zoran_queryctrl,
3043         .vidioc_s_ctrl                      = zoran_s_ctrl,
3044         .vidioc_g_ctrl                      = zoran_g_ctrl,
3045 };
3046
3047 /* please use zr->resource_lock consistently and kill this wrapper */
3048 static long zoran_ioctl(struct file *file, unsigned int cmd,
3049                         unsigned long arg)
3050 {
3051         struct zoran_fh *fh = file->private_data;
3052         struct zoran *zr = fh->zr;
3053         int ret;
3054
3055         mutex_lock(&zr->other_lock);
3056         ret = video_ioctl2(file, cmd, arg);
3057         mutex_unlock(&zr->other_lock);
3058
3059         return ret;
3060 }
3061
3062 static const struct v4l2_file_operations zoran_fops = {
3063         .owner = THIS_MODULE,
3064         .open = zoran_open,
3065         .release = zoran_close,
3066         .unlocked_ioctl = zoran_ioctl,
3067         .read = zoran_read,
3068         .write = zoran_write,
3069         .mmap = zoran_mmap,
3070         .poll = zoran_poll,
3071 };
3072
3073 struct video_device zoran_template __devinitdata = {
3074         .name = ZORAN_NAME,
3075         .fops = &zoran_fops,
3076         .ioctl_ops = &zoran_ioctl_ops,
3077         .release = &zoran_vdev_release,
3078         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
3079 };
3080