git.oblomov.eu Git - linux-2.6/blob - 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 #define     MAP_NR(x)       virt_to_page(x)
  62 #define     ZORAN_VID_TYPE  ( \
  63                                 VID_TYPE_CAPTURE | \
  64                                 VID_TYPE_OVERLAY | \
  65                                 VID_TYPE_CLIPPING | \
  66                                 VID_TYPE_FRAMERAM | \
  67                                 VID_TYPE_SCALES | \
  68                                 VID_TYPE_MJPEG_DECODER | \
  69                                 VID_TYPE_MJPEG_ENCODER \
  70                              )
  71
  72 #include <linux/videodev.h>
  73 #include <media/v4l2-common.h>
  74 #include <media/v4l2-ioctl.h>
  75 #include "videocodec.h"
  76
  77 #include <asm/byteorder.h>
  78 #include <asm/io.h>
  79 #include <asm/uaccess.h>
  80 #include <linux/proc_fs.h>
  81
  82 #include <linux/video_decoder.h>
  83 #include <linux/video_encoder.h>
  84 #include <linux/mutex.h>
  85 #include "zoran.h"
  86 #include "zoran_device.h"
  87 #include "zoran_card.h"
  88
  89         /* we declare some card type definitions here, they mean
  90          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  91 #define ZORAN_V4L2_VID_FLAGS ( \
  92                                 V4L2_CAP_STREAMING |\
  93                                 V4L2_CAP_VIDEO_CAPTURE |\
  94                                 V4L2_CAP_VIDEO_OUTPUT |\
  95                                 V4L2_CAP_VIDEO_OVERLAY \
  96                               )
  97
  98
  99 #if defined(CONFIG_VIDEO_V4L1_COMPAT)
 100 #define ZFMT(pal, fcc, cs) \
 101         .palette = (pal), .fourcc = (fcc), .colorspace = (cs)
 102 #else
 103 #define ZFMT(pal, fcc, cs) \
 104         .fourcc = (fcc), .colorspace = (cs)
 105 #endif
 106
 107 const struct zoran_format zoran_formats[] = {
 108         {
 109                 .name = "15-bit RGB LE",
 110                 ZFMT(VIDEO_PALETTE_RGB555,
 111                      V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB),
 112                 .depth = 15,
 113                 .flags = ZORAN_FORMAT_CAPTURE |
 114                          ZORAN_FORMAT_OVERLAY,
 115                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
 116                            ZR36057_VFESPFR_LittleEndian,
 117         }, {
 118                 .name = "15-bit RGB BE",
 119                 ZFMT(-1,
 120                      V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB),
 121                 .depth = 15,
 122                 .flags = ZORAN_FORMAT_CAPTURE |
 123                          ZORAN_FORMAT_OVERLAY,
 124                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
 125         }, {
 126                 .name = "16-bit RGB LE",
 127                 ZFMT(VIDEO_PALETTE_RGB565,
 128                      V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
 129                 .depth = 16,
 130                 .flags = ZORAN_FORMAT_CAPTURE |
 131                          ZORAN_FORMAT_OVERLAY,
 132                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 133                            ZR36057_VFESPFR_LittleEndian,
 134         }, {
 135                 .name = "16-bit RGB BE",
 136                 ZFMT(-1,
 137                      V4L2_PIX_FMT_RGB565X, V4L2_COLORSPACE_SRGB),
 138                 .depth = 16,
 139                 .flags = ZORAN_FORMAT_CAPTURE |
 140                          ZORAN_FORMAT_OVERLAY,
 141                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 142         }, {
 143                 .name = "24-bit RGB",
 144                 ZFMT(VIDEO_PALETTE_RGB24,
 145                      V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB),
 146                 .depth = 24,
 147                 .flags = ZORAN_FORMAT_CAPTURE |
 148                          ZORAN_FORMAT_OVERLAY,
 149                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 150         }, {
 151                 .name = "32-bit RGB LE",
 152                 ZFMT(VIDEO_PALETTE_RGB32,
 153                      V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB),
 154                 .depth = 32,
 155                 .flags = ZORAN_FORMAT_CAPTURE |
 156                          ZORAN_FORMAT_OVERLAY,
 157                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 158         }, {
 159                 .name = "32-bit RGB BE",
 160                 ZFMT(-1,
 161                      V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB),
 162                 .depth = 32,
 163                 .flags = ZORAN_FORMAT_CAPTURE |
 164                          ZORAN_FORMAT_OVERLAY,
 165                 .vfespfr = ZR36057_VFESPFR_RGB888,
 166         }, {
 167                 .name = "4:2:2, packed, YUYV",
 168                 ZFMT(VIDEO_PALETTE_YUV422,
 169                      V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M),
 170                 .depth = 16,
 171                 .flags = ZORAN_FORMAT_CAPTURE |
 172                          ZORAN_FORMAT_OVERLAY,
 173                 .vfespfr = ZR36057_VFESPFR_YUV422,
 174         }, {
 175                 .name = "4:2:2, packed, UYVY",
 176                 ZFMT(VIDEO_PALETTE_UYVY,
 177                      V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M),
 178                 .depth = 16,
 179                 .flags = ZORAN_FORMAT_CAPTURE |
 180                          ZORAN_FORMAT_OVERLAY,
 181                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 182         }, {
 183                 .name = "Hardware-encoded Motion-JPEG",
 184                 ZFMT(-1,
 185                      V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M),
 186                 .depth = 0,
 187                 .flags = ZORAN_FORMAT_CAPTURE |
 188                          ZORAN_FORMAT_PLAYBACK |
 189                          ZORAN_FORMAT_COMPRESSED,
 190         }
 191 };
 192 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 193
 194 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
 195
 196
 197 static int lock_norm;   /* 0 = default 1 = Don't change TV standard (norm) */
 198 module_param(lock_norm, int, 0644);
 199 MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
 200
 201         /* small helper function for calculating buffersizes for v4l2
 202          * we calculate the nearest higher power-of-two, which
 203          * will be the recommended buffersize */
 204 static __u32
 205 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 206 {
 207         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 208         __u32 num = (1024 * 512) / (div);
 209         __u32 result = 2;
 210
 211         num--;
 212         while (num) {
 213                 num >>= 1;
 214                 result <<= 1;
 215         }
 216
 217         if (result > jpg_bufsize)
 218                 return jpg_bufsize;
 219         if (result < 8192)
 220                 return 8192;
 221         return result;
 222 }
 223
 224 /* forward references */
 225 static void v4l_fbuffer_free(struct file *file);
 226 static void jpg_fbuffer_free(struct file *file);
 227
 228 /*
 229  *   Allocate the V4L grab buffers
 230  *
 231  *   These have to be pysically contiguous.
 232  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 233  *   else we try to allocate them with bigphysarea_alloc_pages
 234  *   if the bigphysarea patch is present in the kernel,
 235  *   else we try to use high memory (if the user has bootet
 236  *   Linux with the necessary memory left over).
 237  */
 238
 239 static unsigned long
 240 get_high_mem (unsigned long size)
 241 {
 242 /*
 243  * Check if there is usable memory at the end of Linux memory
 244  * of at least size. Return the physical address of this memory,
 245  * return 0 on failure.
 246  *
 247  * The idea is from Alexandro Rubini's book "Linux device drivers".
 248  * The driver from him which is downloadable from O'Reilly's
 249  * web site misses the "virt_to_phys(high_memory)" part
 250  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 251  *
 252  * It should be unnecessary to mention that THIS IS DANGEROUS,
 253  * if more than one driver at a time has the idea to use this memory!!!!
 254  */
 255
 256         volatile unsigned char __iomem *mem;
 257         unsigned char c;
 258         unsigned long hi_mem_ph;
 259         unsigned long i;
 260
 261         /* Map the high memory to user space */
 262
 263         hi_mem_ph = virt_to_phys(high_memory);
 264
 265         mem = ioremap(hi_mem_ph, size);
 266         if (!mem) {
 267                 dprintk(1,
 268                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 269                         ZORAN_NAME);
 270                 return 0;
 271         }
 272
 273         for (i = 0; i < size; i++) {
 274                 /* Check if it is memory */
 275                 c = i & 0xff;
 276                 writeb(c, mem + i);
 277                 if (readb(mem + i) != c)
 278                         break;
 279                 c = 255 - c;
 280                 writeb(c, mem + i);
 281                 if (readb(mem + i) != c)
 282                         break;
 283                 writeb(0, mem + i);     /* zero out memory */
 284
 285                 /* give the kernel air to breath */
 286                 if ((i & 0x3ffff) == 0x3ffff)
 287                         schedule();
 288         }
 289
 290         iounmap(mem);
 291
 292         if (i != size) {
 293                 dprintk(1,
 294                         KERN_ERR
 295                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 296                         ZORAN_NAME, size, i);
 297                 return 0;
 298         }
 299
 300         return hi_mem_ph;
 301 }
 302
 303 static int
 304 v4l_fbuffer_alloc (struct file *file)
 305 {
 306         struct zoran_fh *fh = file->private_data;
 307         struct zoran *zr = fh->zr;
 308         int i, off;
 309         unsigned char *mem;
 310         unsigned long pmem = 0;
 311
 312         /* we might have old buffers lying around... */
 313         if (fh->v4l_buffers.ready_to_be_freed) {
 314                 v4l_fbuffer_free(file);
 315         }
 316
 317         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 318                 if (fh->v4l_buffers.buffer[i].fbuffer)
 319                         dprintk(2,
 320                                 KERN_WARNING
 321                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 322                                 ZR_DEVNAME(zr), i);
 323
 324                 //udelay(20);
 325                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 326                         /* Use kmalloc */
 327
 328                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
 329                         if (!mem) {
 330                                 dprintk(1,
 331                                         KERN_ERR
 332                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 333                                         ZR_DEVNAME(zr), i);
 334                                 v4l_fbuffer_free(file);
 335                                 return -ENOBUFS;
 336                         }
 337                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 338                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 339                             virt_to_phys(mem);
 340                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 341                             virt_to_bus(mem);
 342                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 343                              off += PAGE_SIZE)
 344                                 SetPageReserved(MAP_NR(mem + off));
 345                         dprintk(4,
 346                                 KERN_INFO
 347                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 348                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 349                                 virt_to_bus(mem));
 350                 } else {
 351
 352                         /* Use high memory which has been left at boot time */
 353
 354                         /* Ok., Ok. this is an evil hack - we make
 355                          * the assumption that physical addresses are
 356                          * the same as bus addresses (true at least
 357                          * for Intel processors). The whole method of
 358                          * obtaining and using this memory is not very
 359                          * nice - but I hope it saves some poor users
 360                          * from kernel hacking, which might have even
 361                          * more evil results */
 362
 363                         if (i == 0) {
 364                                 int size =
 365                                     fh->v4l_buffers.num_buffers *
 366                                     fh->v4l_buffers.buffer_size;
 367
 368                                 pmem = get_high_mem(size);
 369                                 if (pmem == 0) {
 370                                         dprintk(1,
 371                                                 KERN_ERR
 372                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 373                                                 ZR_DEVNAME(zr), size >> 10);
 374                                         return -ENOBUFS;
 375                                 }
 376                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 377                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 378                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 379                                 dprintk(4,
 380                                         KERN_INFO
 381                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 382                                         ZR_DEVNAME(zr), size >> 10);
 383                         } else {
 384                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 385                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 386                                     pmem + i * fh->v4l_buffers.buffer_size;
 387                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 388                                     pmem + i * fh->v4l_buffers.buffer_size;
 389                         }
 390                 }
 391         }
 392
 393         fh->v4l_buffers.allocated = 1;
 394
 395         return 0;
 396 }
 397
 398 /* free the V4L grab buffers */
 399 static void
 400 v4l_fbuffer_free (struct file *file)
 401 {
 402         struct zoran_fh *fh = file->private_data;
 403         struct zoran *zr = fh->zr;
 404         int i, off;
 405         unsigned char *mem;
 406
 407         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 408
 409         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 410                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 411                         continue;
 412
 413                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 414                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 415                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 416                              off += PAGE_SIZE)
 417                                 ClearPageReserved(MAP_NR(mem + off));
 418                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 419                 }
 420                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 421         }
 422
 423         fh->v4l_buffers.allocated = 0;
 424         fh->v4l_buffers.ready_to_be_freed = 0;
 425 }
 426
 427 /*
 428  *   Allocate the MJPEG grab buffers.
 429  *
 430  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 431  *   kmalloc is used to request a physically contiguous area,
 432  *   else we allocate the memory in framgents with get_zeroed_page.
 433  *
 434  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 435  *   each MJPEG buffer needs to be physically contiguous.
 436  *   (RJ: This statement is from Dave Perks' original driver,
 437  *   I could never check it because I have a zr36067)
 438  *   The driver cares about this because it reduces the buffer
 439  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 440  *
 441  *   RJ: The contents grab buffers needs never be accessed in the driver.
 442  *       Therefore there is no need to allocate them with vmalloc in order
 443  *       to get a contiguous virtual memory space.
 444  *       I don't understand why many other drivers first allocate them with
 445  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 446  *       virtual addresses) and then again have to make a lot of efforts
 447  *       to get the physical address.
 448  *
 449  *   Ben Capper:
 450  *       On big-endian architectures (such as ppc) some extra steps
 451  *       are needed. When reading and writing to the stat_com array
 452  *       and fragment buffers, the device expects to see little-
 453  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 454  *       in this function (and one or two others in zoran_device.c)
 455  *       ensure that these values are always stored in little-endian
 456  *       form, regardless of architecture. The zr36057 does Very Bad
 457  *       Things on big endian architectures if the stat_com array
 458  *       and fragment buffers are not little-endian.
 459  */
 460
 461 static int
 462 jpg_fbuffer_alloc (struct file *file)
 463 {
 464         struct zoran_fh *fh = file->private_data;
 465         struct zoran *zr = fh->zr;
 466         int i, j, off;
 467         unsigned long mem;
 468
 469         /* we might have old buffers lying around */
 470         if (fh->jpg_buffers.ready_to_be_freed) {
 471                 jpg_fbuffer_free(file);
 472         }
 473
 474         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 475                 if (fh->jpg_buffers.buffer[i].frag_tab)
 476                         dprintk(2,
 477                                 KERN_WARNING
 478                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 479                                 ZR_DEVNAME(zr), i);
 480
 481                 /* Allocate fragment table for this buffer */
 482
 483                 mem = get_zeroed_page(GFP_KERNEL);
 484                 if (mem == 0) {
 485                         dprintk(1,
 486                                 KERN_ERR
 487                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 488                                 ZR_DEVNAME(zr), i);
 489                         jpg_fbuffer_free(file);
 490                         return -ENOBUFS;
 491                 }
 492                 fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem;
 493                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 494                     virt_to_bus((void *) mem);
 495
 496                 //if (alloc_contig) {
 497                 if (fh->jpg_buffers.need_contiguous) {
 498                         mem =
 499                             (unsigned long) kmalloc(fh->jpg_buffers.
 500                                                     buffer_size,
 501                                                     GFP_KERNEL);
 502                         if (mem == 0) {
 503                                 dprintk(1,
 504                                         KERN_ERR
 505                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 506                                         ZR_DEVNAME(zr), i);
 507                                 jpg_fbuffer_free(file);
 508                                 return -ENOBUFS;
 509                         }
 510                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 511                             cpu_to_le32(virt_to_bus((void *) mem));
 512                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 513                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 514                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 515                              off += PAGE_SIZE)
 516                                 SetPageReserved(MAP_NR(mem + off));
 517                 } else {
 518                         /* jpg_bufsize is allreay page aligned */
 519                         for (j = 0;
 520                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 521                              j++) {
 522                                 mem = get_zeroed_page(GFP_KERNEL);
 523                                 if (mem == 0) {
 524                                         dprintk(1,
 525                                                 KERN_ERR
 526                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 527                                                 ZR_DEVNAME(zr), i);
 528                                         jpg_fbuffer_free(file);
 529                                         return -ENOBUFS;
 530                                 }
 531
 532                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 533                                     cpu_to_le32(virt_to_bus((void *) mem));
 534                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 535                                                                    1] =
 536                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 537                                 SetPageReserved(MAP_NR(mem));
 538                         }
 539
 540                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 541                 }
 542         }
 543
 544         dprintk(4,
 545                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 546                 ZR_DEVNAME(zr),
 547                 (fh->jpg_buffers.num_buffers *
 548                  fh->jpg_buffers.buffer_size) >> 10);
 549
 550         fh->jpg_buffers.allocated = 1;
 551
 552         return 0;
 553 }
 554
 555 /* free the MJPEG grab buffers */
 556 static void
 557 jpg_fbuffer_free (struct file *file)
 558 {
 559         struct zoran_fh *fh = file->private_data;
 560         struct zoran *zr = fh->zr;
 561         int i, j, off;
 562         unsigned char *mem;
 563
 564         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 565
 566         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 567                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 568                         continue;
 569
 570                 //if (alloc_contig) {
 571                 if (fh->jpg_buffers.need_contiguous) {
 572                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 573                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 574                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 575                                 for (off = 0;
 576                                      off < fh->jpg_buffers.buffer_size;
 577                                      off += PAGE_SIZE)
 578                                         ClearPageReserved(MAP_NR
 579                                                           (mem + off));
 580                                 kfree(mem);
 581                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 582                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 583                         }
 584                 } else {
 585                         for (j = 0;
 586                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 587                              j++) {
 588                                 if (!fh->jpg_buffers.buffer[i].
 589                                     frag_tab[2 * j])
 590                                         break;
 591                                 ClearPageReserved(MAP_NR
 592                                                   (bus_to_virt
 593                                                    (le32_to_cpu
 594                                                     (fh->jpg_buffers.
 595                                                      buffer[i].frag_tab[2 *
 596                                                                        j]))));
 597                                 free_page((unsigned long)
 598                                           bus_to_virt
 599                                                   (le32_to_cpu
 600                                                    (fh->jpg_buffers.
 601                                                       buffer[i].
 602                                                       frag_tab[2 * j])));
 603                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 604                                     0;
 605                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 606                                                                    1] = 0;
 607                         }
 608                 }
 609
 610                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 611                           frag_tab);
 612                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 613         }
 614
 615         fh->jpg_buffers.allocated = 0;
 616         fh->jpg_buffers.ready_to_be_freed = 0;
 617 }
 618
 619 /*
 620  *   V4L Buffer grabbing
 621  */
 622
 623 static int
 624 zoran_v4l_set_format (struct file               *file,
 625                       int                        width,
 626                       int                        height,
 627                       const struct zoran_format *format)
 628 {
 629         struct zoran_fh *fh = file->private_data;
 630         struct zoran *zr = fh->zr;
 631         int bpp;
 632
 633         /* Check size and format of the grab wanted */
 634
 635         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 636             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 637                 dprintk(1,
 638                         KERN_ERR
 639                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 640                         ZR_DEVNAME(zr), width, height);
 641                 return -EINVAL;
 642         }
 643
 644         bpp = (format->depth + 7) / 8;
 645
 646         /* Check against available buffer size */
 647         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 648                 dprintk(1,
 649                         KERN_ERR
 650                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 651                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 652                 return -EINVAL;
 653         }
 654
 655         /* The video front end needs 4-byte alinged line sizes */
 656
 657         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 658                 dprintk(1,
 659                         KERN_ERR
 660                         "%s: v4l_set_format() - wrong frame alingment\n",
 661                         ZR_DEVNAME(zr));
 662                 return -EINVAL;
 663         }
 664
 665         fh->v4l_settings.width = width;
 666         fh->v4l_settings.height = height;
 667         fh->v4l_settings.format = format;
 668         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 669
 670         return 0;
 671 }
 672
 673 static int
 674 zoran_v4l_queue_frame (struct file *file,
 675                        int          num)
 676 {
 677         struct zoran_fh *fh = file->private_data;
 678         struct zoran *zr = fh->zr;
 679         unsigned long flags;
 680         int res = 0;
 681
 682         if (!fh->v4l_buffers.allocated) {
 683                 dprintk(1,
 684                         KERN_ERR
 685                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 686                         ZR_DEVNAME(zr));
 687                 res = -ENOMEM;
 688         }
 689
 690         /* No grabbing outside the buffer range! */
 691         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 692                 dprintk(1,
 693                         KERN_ERR
 694                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 695                         ZR_DEVNAME(zr), num);
 696                 res = -EINVAL;
 697         }
 698
 699         spin_lock_irqsave(&zr->spinlock, flags);
 700
 701         if (fh->v4l_buffers.active == ZORAN_FREE) {
 702                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 703                         zr->v4l_buffers = fh->v4l_buffers;
 704                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 705                 } else {
 706                         dprintk(1,
 707                                 KERN_ERR
 708                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 709                                 ZR_DEVNAME(zr));
 710                         res = -EBUSY;
 711                 }
 712         }
 713
 714         /* make sure a grab isn't going on currently with this buffer */
 715         if (!res) {
 716                 switch (zr->v4l_buffers.buffer[num].state) {
 717                 default:
 718                 case BUZ_STATE_PEND:
 719                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 720                                 fh->v4l_buffers.active = ZORAN_FREE;
 721                                 zr->v4l_buffers.allocated = 0;
 722                         }
 723                         res = -EBUSY;   /* what are you doing? */
 724                         break;
 725                 case BUZ_STATE_DONE:
 726                         dprintk(2,
 727                                 KERN_WARNING
 728                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 729                                 ZR_DEVNAME(zr), num);
 730                 case BUZ_STATE_USER:
 731                         /* since there is at least one unused buffer there's room for at least
 732                          * one more pend[] entry */
 733                         zr->v4l_pend[zr->v4l_pend_head++ &
 734                                         V4L_MASK_FRAME] = num;
 735                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 736                         zr->v4l_buffers.buffer[num].bs.length =
 737                             fh->v4l_settings.bytesperline *
 738                             zr->v4l_settings.height;
 739                         fh->v4l_buffers.buffer[num] =
 740                             zr->v4l_buffers.buffer[num];
 741                         break;
 742                 }
 743         }
 744
 745         spin_unlock_irqrestore(&zr->spinlock, flags);
 746
 747         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 748                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 749
 750         return res;
 751 }
 752
 753 static int
 754 v4l_grab (struct file       *file,
 755           struct video_mmap *mp)
 756 {
 757         struct zoran_fh *fh = file->private_data;
 758         struct zoran *zr = fh->zr;
 759         int res = 0, i;
 760
 761         for (i = 0; i < NUM_FORMATS; i++) {
 762                 if (zoran_formats[i].palette == mp->format &&
 763                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 764                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 765                         break;
 766         }
 767         if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
 768                 dprintk(1,
 769                         KERN_ERR
 770                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 771                         ZR_DEVNAME(zr));
 772                 return -EINVAL;
 773         }
 774
 775         /*
 776          * To minimize the time spent in the IRQ routine, we avoid setting up
 777          * the video front end there.
 778          * If this grab has different parameters from a running streaming capture
 779          * we stop the streaming capture and start it over again.
 780          */
 781         if (zr->v4l_memgrab_active &&
 782             (zr->v4l_settings.width != mp->width ||
 783              zr->v4l_settings.height != mp->height ||
 784              zr->v4l_settings.format->palette != mp->format)) {
 785                 res = wait_grab_pending(zr);
 786                 if (res)
 787                         return res;
 788         }
 789         if ((res = zoran_v4l_set_format(file,
 790                                         mp->width,
 791                                         mp->height,
 792                                         &zoran_formats[i])))
 793                 return res;
 794         zr->v4l_settings = fh->v4l_settings;
 795
 796         /* queue the frame in the pending queue */
 797         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 798                 fh->v4l_buffers.active = ZORAN_FREE;
 799                 return res;
 800         }
 801
 802         /* put the 36057 into frame grabbing mode */
 803         if (!res && !zr->v4l_memgrab_active)
 804                 zr36057_set_memgrab(zr, 1);
 805
 806         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 807
 808         return res;
 809 }
 810
 811 /*
 812  * Sync on a V4L buffer
 813  */
 814
 815 static int
 816 v4l_sync (struct file *file,
 817           int          frame)
 818 {
 819         struct zoran_fh *fh = file->private_data;
 820         struct zoran *zr = fh->zr;
 821         unsigned long flags;
 822
 823         if (fh->v4l_buffers.active == ZORAN_FREE) {
 824                 dprintk(1,
 825                         KERN_ERR
 826                         "%s: v4l_sync() - no grab active for this session\n",
 827                         ZR_DEVNAME(zr));
 828                 return -EINVAL;
 829         }
 830
 831         /* check passed-in frame number */
 832         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 833                 dprintk(1,
 834                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 835                         ZR_DEVNAME(zr), frame);
 836                 return -EINVAL;
 837         }
 838
 839         /* Check if is buffer was queued at all */
 840         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 841                 dprintk(1,
 842                         KERN_ERR
 843                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 844                         ZR_DEVNAME(zr));
 845                 return -EPROTO;
 846         }
 847
 848         /* wait on this buffer to get ready */
 849         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 850                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 851                                 10*HZ))
 852                 return -ETIME;
 853         if (signal_pending(current))
 854                 return -ERESTARTSYS;
 855
 856         /* buffer should now be in BUZ_STATE_DONE */
 857         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 858                 dprintk(2,
 859                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 860                         ZR_DEVNAME(zr));
 861
 862         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 863         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 864
 865         spin_lock_irqsave(&zr->spinlock, flags);
 866
 867         /* Check if streaming capture has finished */
 868         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 869                 zr36057_set_memgrab(zr, 0);
 870                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 871                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 872                             ZORAN_FREE;
 873                         zr->v4l_buffers.allocated = 0;
 874                 }
 875         }
 876
 877         spin_unlock_irqrestore(&zr->spinlock, flags);
 878
 879         return 0;
 880 }
 881
 882 /*
 883  *   Queue a MJPEG buffer for capture/playback
 884  */
 885
 886 static int
 887 zoran_jpg_queue_frame (struct file          *file,
 888                        int                   num,
 889                        enum zoran_codec_mode mode)
 890 {
 891         struct zoran_fh *fh = file->private_data;
 892         struct zoran *zr = fh->zr;
 893         unsigned long flags;
 894         int res = 0;
 895
 896         /* Check if buffers are allocated */
 897         if (!fh->jpg_buffers.allocated) {
 898                 dprintk(1,
 899                         KERN_ERR
 900                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 901                         ZR_DEVNAME(zr));
 902                 return -ENOMEM;
 903         }
 904
 905         /* No grabbing outside the buffer range! */
 906         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 907                 dprintk(1,
 908                         KERN_ERR
 909                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 910                         ZR_DEVNAME(zr), num);
 911                 return -EINVAL;
 912         }
 913
 914         /* what is the codec mode right now? */
 915         if (zr->codec_mode == BUZ_MODE_IDLE) {
 916                 zr->jpg_settings = fh->jpg_settings;
 917         } else if (zr->codec_mode != mode) {
 918                 /* wrong codec mode active - invalid */
 919                 dprintk(1,
 920                         KERN_ERR
 921                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 922                         ZR_DEVNAME(zr));
 923                 return -EINVAL;
 924         }
 925
 926         if (fh->jpg_buffers.active == ZORAN_FREE) {
 927                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 928                         zr->jpg_buffers = fh->jpg_buffers;
 929                         fh->jpg_buffers.active = ZORAN_ACTIVE;
 930                 } else {
 931                         dprintk(1,
 932                                 KERN_ERR
 933                                 "%s: jpg_queue_frame() - another session is already capturing\n",
 934                                 ZR_DEVNAME(zr));
 935                         res = -EBUSY;
 936                 }
 937         }
 938
 939         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 940                 /* Ok load up the jpeg codec */
 941                 zr36057_enable_jpg(zr, mode);
 942         }
 943
 944         spin_lock_irqsave(&zr->spinlock, flags);
 945
 946         if (!res) {
 947                 switch (zr->jpg_buffers.buffer[num].state) {
 948                 case BUZ_STATE_DONE:
 949                         dprintk(2,
 950                                 KERN_WARNING
 951                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
 952                                 ZR_DEVNAME(zr));
 953                 case BUZ_STATE_USER:
 954                         /* since there is at least one unused buffer there's room for at
 955                          *least one more pend[] entry */
 956                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
 957                             num;
 958                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 959                         fh->jpg_buffers.buffer[num] =
 960                             zr->jpg_buffers.buffer[num];
 961                         zoran_feed_stat_com(zr);
 962                         break;
 963                 default:
 964                 case BUZ_STATE_DMA:
 965                 case BUZ_STATE_PEND:
 966                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 967                                 fh->jpg_buffers.active = ZORAN_FREE;
 968                                 zr->jpg_buffers.allocated = 0;
 969                         }
 970                         res = -EBUSY;   /* what are you doing? */
 971                         break;
 972                 }
 973         }
 974
 975         spin_unlock_irqrestore(&zr->spinlock, flags);
 976
 977         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
 978                 zr->jpg_buffers.active = fh->jpg_buffers.active;
 979         }
 980
 981         return res;
 982 }
 983
 984 static int
 985 jpg_qbuf (struct file          *file,
 986           int                   frame,
 987           enum zoran_codec_mode mode)
 988 {
 989         struct zoran_fh *fh = file->private_data;
 990         struct zoran *zr = fh->zr;
 991         int res = 0;
 992
 993         /* Does the user want to stop streaming? */
 994         if (frame < 0) {
 995                 if (zr->codec_mode == mode) {
 996                         if (fh->jpg_buffers.active == ZORAN_FREE) {
 997                                 dprintk(1,
 998                                         KERN_ERR
 999                                         "%s: jpg_qbuf(-1) - session not active\n",
1000                                         ZR_DEVNAME(zr));
1001                                 return -EINVAL;
1002                         }
1003                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1004                             ZORAN_FREE;
1005                         zr->jpg_buffers.allocated = 0;
1006                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1007                         return 0;
1008                 } else {
1009                         dprintk(1,
1010                                 KERN_ERR
1011                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1012                                 ZR_DEVNAME(zr));
1013                         return -EINVAL;
1014                 }
1015         }
1016
1017         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1018                 return res;
1019
1020         /* Start the jpeg codec when the first frame is queued  */
1021         if (!res && zr->jpg_que_head == 1)
1022                 jpeg_start(zr);
1023
1024         return res;
1025 }
1026
1027 /*
1028  *   Sync on a MJPEG buffer
1029  */
1030
1031 static int
1032 jpg_sync (struct file       *file,
1033           struct zoran_sync *bs)
1034 {
1035         struct zoran_fh *fh = file->private_data;
1036         struct zoran *zr = fh->zr;
1037         unsigned long flags;
1038         int frame;
1039
1040         if (fh->jpg_buffers.active == ZORAN_FREE) {
1041                 dprintk(1,
1042                         KERN_ERR
1043                         "%s: jpg_sync() - capture is not currently active\n",
1044                         ZR_DEVNAME(zr));
1045                 return -EINVAL;
1046         }
1047         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1048             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1049                 dprintk(1,
1050                         KERN_ERR
1051                         "%s: jpg_sync() - codec not in streaming mode\n",
1052                         ZR_DEVNAME(zr));
1053                 return -EINVAL;
1054         }
1055         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1056                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1057                          zr->jpg_dma_tail == zr->jpg_dma_head),
1058                         10*HZ)) {
1059                 int isr;
1060
1061                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1062                 udelay(1);
1063                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1064                                            sizeof(isr), &isr);
1065                 dprintk(1,
1066                         KERN_ERR
1067                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1068                         ZR_DEVNAME(zr), isr);
1069
1070                 return -ETIME;
1071
1072         }
1073         if (signal_pending(current))
1074                 return -ERESTARTSYS;
1075
1076         spin_lock_irqsave(&zr->spinlock, flags);
1077
1078         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1079                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1080         else
1081                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1082
1083         /* buffer should now be in BUZ_STATE_DONE */
1084         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1085                 dprintk(2,
1086                         KERN_ERR "%s: jpg_sync() - internal state error\n",
1087                         ZR_DEVNAME(zr));
1088
1089         *bs = zr->jpg_buffers.buffer[frame].bs;
1090         bs->frame = frame;
1091         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1092         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1093
1094         spin_unlock_irqrestore(&zr->spinlock, flags);
1095
1096         return 0;
1097 }
1098
1099 static void
1100 zoran_open_init_session (struct file *file)
1101 {
1102         int i;
1103         struct zoran_fh *fh = file->private_data;
1104         struct zoran *zr = fh->zr;
1105
1106         /* Per default, map the V4L Buffers */
1107         fh->map_mode = ZORAN_MAP_MODE_RAW;
1108
1109         /* take over the card's current settings */
1110         fh->overlay_settings = zr->overlay_settings;
1111         fh->overlay_settings.is_set = 0;
1112         fh->overlay_settings.format = zr->overlay_settings.format;
1113         fh->overlay_active = ZORAN_FREE;
1114
1115         /* v4l settings */
1116         fh->v4l_settings = zr->v4l_settings;
1117
1118         /* v4l_buffers */
1119         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1120         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1121                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1122                 fh->v4l_buffers.buffer[i].bs.frame = i;
1123         }
1124         fh->v4l_buffers.allocated = 0;
1125         fh->v4l_buffers.ready_to_be_freed = 0;
1126         fh->v4l_buffers.active = ZORAN_FREE;
1127         fh->v4l_buffers.buffer_size = v4l_bufsize;
1128         fh->v4l_buffers.num_buffers = v4l_nbufs;
1129
1130         /* jpg settings */
1131         fh->jpg_settings = zr->jpg_settings;
1132
1133         /* jpg_buffers */
1134         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1135         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1136                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1137                 fh->jpg_buffers.buffer[i].bs.frame = i;
1138         }
1139         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1140         fh->jpg_buffers.allocated = 0;
1141         fh->jpg_buffers.ready_to_be_freed = 0;
1142         fh->jpg_buffers.active = ZORAN_FREE;
1143         fh->jpg_buffers.buffer_size = jpg_bufsize;
1144         fh->jpg_buffers.num_buffers = jpg_nbufs;
1145 }
1146
1147 static void
1148 zoran_close_end_session (struct file *file)
1149 {
1150         struct zoran_fh *fh = file->private_data;
1151         struct zoran *zr = fh->zr;
1152
1153         /* overlay */
1154         if (fh->overlay_active != ZORAN_FREE) {
1155                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1156                 zr->v4l_overlay_active = 0;
1157                 if (!zr->v4l_memgrab_active)
1158                         zr36057_overlay(zr, 0);
1159                 zr->overlay_mask = NULL;
1160         }
1161
1162         /* v4l capture */
1163         if (fh->v4l_buffers.active != ZORAN_FREE) {
1164                 unsigned long flags;
1165
1166                 spin_lock_irqsave(&zr->spinlock, flags);
1167                 zr36057_set_memgrab(zr, 0);
1168                 zr->v4l_buffers.allocated = 0;
1169                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1170                     ZORAN_FREE;
1171                 spin_unlock_irqrestore(&zr->spinlock, flags);
1172         }
1173
1174         /* v4l buffers */
1175         if (fh->v4l_buffers.allocated ||
1176             fh->v4l_buffers.ready_to_be_freed) {
1177                 v4l_fbuffer_free(file);
1178         }
1179
1180         /* jpg capture */
1181         if (fh->jpg_buffers.active != ZORAN_FREE) {
1182                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1183                 zr->jpg_buffers.allocated = 0;
1184                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1185                     ZORAN_FREE;
1186         }
1187
1188         /* jpg buffers */
1189         if (fh->jpg_buffers.allocated ||
1190             fh->jpg_buffers.ready_to_be_freed) {
1191                 jpg_fbuffer_free(file);
1192         }
1193 }
1194
1195 /*
1196  *   Open a zoran card. Right now the flags stuff is just playing
1197  */
1198
1199 static int zoran_open(struct file *file)
1200 {
1201         struct zoran *zr = video_drvdata(file);
1202         struct zoran_fh *fh;
1203         int res, first_open = 0;
1204
1205         dprintk(2, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1206                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user + 1);
1207
1208         lock_kernel();
1209
1210         /* see fs/device.c - the kernel already locks during open(),
1211          * so locking ourselves only causes deadlocks */
1212         /*mutex_lock(&zr->resource_lock);*/
1213
1214         if (zr->user >= 2048) {
1215                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1216                         ZR_DEVNAME(zr), zr->user);
1217                 res = -EBUSY;
1218                 goto fail_unlock;
1219         }
1220
1221         if (!zr->decoder) {
1222                 dprintk(1,
1223                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1224                         ZR_DEVNAME(zr));
1225                 res = -EIO;
1226                 goto fail_unlock;
1227         }
1228
1229         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1230                 dprintk(1,
1231                         KERN_ERR
1232                         "%s: failed to grab ownership of video decoder\n",
1233                         ZR_DEVNAME(zr));
1234                 res = -EIO;
1235                 goto fail_unlock;
1236         }
1237         if (zr->encoder &&
1238             !try_module_get(zr->encoder->driver->driver.owner)) {
1239                 dprintk(1,
1240                         KERN_ERR
1241                         "%s: failed to grab ownership of video encoder\n",
1242                         ZR_DEVNAME(zr));
1243                 res = -EIO;
1244                 goto fail_decoder;
1245         }
1246
1247         /* now, create the open()-specific file_ops struct */
1248         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1249         if (!fh) {
1250                 dprintk(1,
1251                         KERN_ERR
1252                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1253                         ZR_DEVNAME(zr));
1254                 res = -ENOMEM;
1255                 goto fail_encoder;
1256         }
1257         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1258          * on norm-change! */
1259         fh->overlay_mask =
1260             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1261         if (!fh->overlay_mask) {
1262                 dprintk(1,
1263                         KERN_ERR
1264                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1265                         ZR_DEVNAME(zr));
1266                 res = -ENOMEM;
1267                 goto fail_fh;
1268         }
1269
1270         if (zr->user++ == 0)
1271                 first_open = 1;
1272
1273         /*mutex_unlock(&zr->resource_lock);*/
1274
1275         /* default setup - TODO: look at flags */
1276         if (first_open) {       /* First device open */
1277                 zr36057_restart(zr);
1278                 zoran_open_init_params(zr);
1279                 zoran_init_hardware(zr);
1280
1281                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1282         }
1283
1284         /* set file_ops stuff */
1285         file->private_data = fh;
1286         fh->zr = zr;
1287         zoran_open_init_session(file);
1288         unlock_kernel();
1289
1290         return 0;
1291
1292 fail_fh:
1293         kfree(fh);
1294 fail_encoder:
1295         if (zr->encoder)
1296                 module_put(zr->encoder->driver->driver.owner);
1297 fail_decoder:
1298         module_put(zr->decoder->driver->driver.owner);
1299 fail_unlock:
1300         unlock_kernel();
1301
1302         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
1303                 ZR_DEVNAME(zr), res, zr->user);
1304
1305         return res;
1306 }
1307
1308 static int
1309 zoran_close(struct file  *file)
1310 {
1311         struct zoran_fh *fh = file->private_data;
1312         struct zoran *zr = fh->zr;
1313
1314         dprintk(2, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1315                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user - 1);
1316
1317         /* kernel locks (fs/device.c), so don't do that ourselves
1318          * (prevents deadlocks) */
1319         /*mutex_lock(&zr->resource_lock);*/
1320
1321         zoran_close_end_session(file);
1322
1323         if (zr->user-- == 1) {  /* Last process */
1324                 /* Clean up JPEG process */
1325                 wake_up_interruptible(&zr->jpg_capq);
1326                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1327                 zr->jpg_buffers.allocated = 0;
1328                 zr->jpg_buffers.active = ZORAN_FREE;
1329
1330                 /* disable interrupts */
1331                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1332
1333                 if (zr36067_debug > 1)
1334                         print_interrupts(zr);
1335
1336                 /* Overlay off */
1337                 zr->v4l_overlay_active = 0;
1338                 zr36057_overlay(zr, 0);
1339                 zr->overlay_mask = NULL;
1340
1341                 /* capture off */
1342                 wake_up_interruptible(&zr->v4l_capq);
1343                 zr36057_set_memgrab(zr, 0);
1344                 zr->v4l_buffers.allocated = 0;
1345                 zr->v4l_buffers.active = ZORAN_FREE;
1346                 zoran_set_pci_master(zr, 0);
1347
1348                 if (!pass_through) {    /* Switch to color bar */
1349                         int zero = 0, two = 2;
1350                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1351                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1352                 }
1353         }
1354
1355         file->private_data = NULL;
1356         kfree(fh->overlay_mask);
1357         kfree(fh);
1358
1359         /* release locks on the i2c modules */
1360         module_put(zr->decoder->driver->driver.owner);
1361         if (zr->encoder)
1362                 module_put(zr->encoder->driver->driver.owner);
1363
1364         /*mutex_unlock(&zr->resource_lock);*/
1365
1366         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1367
1368         return 0;
1369 }
1370
1371
1372 static ssize_t
1373 zoran_read (struct file *file,
1374             char        __user *data,
1375             size_t       count,
1376             loff_t      *ppos)
1377 {
1378         /* we simply don't support read() (yet)... */
1379
1380         return -EINVAL;
1381 }
1382
1383 static ssize_t
1384 zoran_write (struct file *file,
1385              const char  __user *data,
1386              size_t       count,
1387              loff_t      *ppos)
1388 {
1389         /* ...and the same goes for write() */
1390
1391         return -EINVAL;
1392 }
1393
1394 static int
1395 setup_fbuffer (struct file               *file,
1396                void                      *base,
1397                const struct zoran_format *fmt,
1398                int                        width,
1399                int                        height,
1400                int                        bytesperline)
1401 {
1402         struct zoran_fh *fh = file->private_data;
1403         struct zoran *zr = fh->zr;
1404
1405         /* (Ronald) v4l/v4l2 guidelines */
1406         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1407                 return -EPERM;
1408
1409         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1410            ALi Magik (that needs very low latency while the card needs a
1411            higher value always) */
1412
1413         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1414                 return -ENXIO;
1415
1416         /* we need a bytesperline value, even if not given */
1417         if (!bytesperline)
1418                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1419
1420 #if 0
1421         if (zr->overlay_active) {
1422                 /* dzjee... stupid users... don't even bother to turn off
1423                  * overlay before changing the memory location...
1424                  * normally, we would return errors here. However, one of
1425                  * the tools that does this is... xawtv! and since xawtv
1426                  * is used by +/- 99% of the users, we'd rather be user-
1427                  * friendly and silently do as if nothing went wrong */
1428                 dprintk(3,
1429                         KERN_ERR
1430                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1431                         ZR_DEVNAME(zr));
1432                 zr36057_overlay(zr, 0);
1433         }
1434 #endif
1435
1436         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1437                 dprintk(1,
1438                         KERN_ERR
1439                         "%s: setup_fbuffer() - no valid overlay format given\n",
1440                         ZR_DEVNAME(zr));
1441                 return -EINVAL;
1442         }
1443         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1444                 dprintk(1,
1445                         KERN_ERR
1446                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1447                         ZR_DEVNAME(zr), width, height, bytesperline);
1448                 return -EINVAL;
1449         }
1450         if (bytesperline & 3) {
1451                 dprintk(1,
1452                         KERN_ERR
1453                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1454                         ZR_DEVNAME(zr), bytesperline);
1455                 return -EINVAL;
1456         }
1457
1458         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1459         zr->buffer.height = height;
1460         zr->buffer.width = width;
1461         zr->buffer.depth = fmt->depth;
1462         zr->overlay_settings.format = fmt;
1463         zr->buffer.bytesperline = bytesperline;
1464
1465         /* The user should set new window parameters */
1466         zr->overlay_settings.is_set = 0;
1467
1468         return 0;
1469 }
1470
1471
1472 static int
1473 setup_window (struct file       *file,
1474               int                x,
1475               int                y,
1476               int                width,
1477               int                height,
1478               struct video_clip __user *clips,
1479               int                clipcount,
1480               void              __user *bitmap)
1481 {
1482         struct zoran_fh *fh = file->private_data;
1483         struct zoran *zr = fh->zr;
1484         struct video_clip *vcp = NULL;
1485         int on, end;
1486
1487
1488         if (!zr->buffer.base) {
1489                 dprintk(1,
1490                         KERN_ERR
1491                         "%s: setup_window() - frame buffer has to be set first\n",
1492                         ZR_DEVNAME(zr));
1493                 return -EINVAL;
1494         }
1495
1496         if (!fh->overlay_settings.format) {
1497                 dprintk(1,
1498                         KERN_ERR
1499                         "%s: setup_window() - no overlay format set\n",
1500                         ZR_DEVNAME(zr));
1501                 return -EINVAL;
1502         }
1503
1504         /*
1505          * The video front end needs 4-byte alinged line sizes, we correct that
1506          * silently here if necessary
1507          */
1508         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1509                 end = (x + width) & ~1; /* round down */
1510                 x = (x + 1) & ~1;       /* round up */
1511                 width = end - x;
1512         }
1513
1514         if (zr->buffer.depth == 24) {
1515                 end = (x + width) & ~3; /* round down */
1516                 x = (x + 3) & ~3;       /* round up */
1517                 width = end - x;
1518         }
1519
1520         if (width > BUZ_MAX_WIDTH)
1521                 width = BUZ_MAX_WIDTH;
1522         if (height > BUZ_MAX_HEIGHT)
1523                 height = BUZ_MAX_HEIGHT;
1524
1525         /* Check for vaild parameters */
1526         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1527             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1528                 dprintk(1,
1529                         KERN_ERR
1530                         "%s: setup_window() - width = %d or height = %d invalid\n",
1531                         ZR_DEVNAME(zr), width, height);
1532                 return -EINVAL;
1533         }
1534
1535         fh->overlay_settings.x = x;
1536         fh->overlay_settings.y = y;
1537         fh->overlay_settings.width = width;
1538         fh->overlay_settings.height = height;
1539         fh->overlay_settings.clipcount = clipcount;
1540
1541         /*
1542          * If an overlay is running, we have to switch it off
1543          * and switch it on again in order to get the new settings in effect.
1544          *
1545          * We also want to avoid that the overlay mask is written
1546          * when an overlay is running.
1547          */
1548
1549         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1550             zr->overlay_active != ZORAN_FREE &&
1551             fh->overlay_active != ZORAN_FREE;
1552         if (on)
1553                 zr36057_overlay(zr, 0);
1554
1555         /*
1556          *   Write the overlay mask if clips are wanted.
1557          *   We prefer a bitmap.
1558          */
1559         if (bitmap) {
1560                 /* fake value - it just means we want clips */
1561                 fh->overlay_settings.clipcount = 1;
1562
1563                 if (copy_from_user(fh->overlay_mask, bitmap,
1564                                    (width * height + 7) / 8)) {
1565                         return -EFAULT;
1566                 }
1567         } else if (clipcount > 0) {
1568                 /* write our own bitmap from the clips */
1569                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1570                 if (vcp == NULL) {
1571                         dprintk(1,
1572                                 KERN_ERR
1573                                 "%s: setup_window() - Alloc of clip mask failed\n",
1574                                 ZR_DEVNAME(zr));
1575                         return -ENOMEM;
1576                 }
1577                 if (copy_from_user
1578                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1579                         vfree(vcp);
1580                         return -EFAULT;
1581                 }
1582                 write_overlay_mask(file, vcp, clipcount);
1583                 vfree(vcp);
1584         }
1585
1586         fh->overlay_settings.is_set = 1;
1587         if (fh->overlay_active != ZORAN_FREE &&
1588             zr->overlay_active != ZORAN_FREE)
1589                 zr->overlay_settings = fh->overlay_settings;
1590
1591         if (on)
1592                 zr36057_overlay(zr, 1);
1593
1594         /* Make sure the changes come into effect */
1595         return wait_grab_pending(zr);
1596 }
1597
1598 static int
1599 setup_overlay (struct file *file,
1600                int          on)
1601 {
1602         struct zoran_fh *fh = file->private_data;
1603         struct zoran *zr = fh->zr;
1604
1605         /* If there is nothing to do, return immediatly */
1606         if ((on && fh->overlay_active != ZORAN_FREE) ||
1607             (!on && fh->overlay_active == ZORAN_FREE))
1608                 return 0;
1609
1610         /* check whether we're touching someone else's overlay */
1611         if (on && zr->overlay_active != ZORAN_FREE &&
1612             fh->overlay_active == ZORAN_FREE) {
1613                 dprintk(1,
1614                         KERN_ERR
1615                         "%s: setup_overlay() - overlay is already active for another session\n",
1616                         ZR_DEVNAME(zr));
1617                 return -EBUSY;
1618         }
1619         if (!on && zr->overlay_active != ZORAN_FREE &&
1620             fh->overlay_active == ZORAN_FREE) {
1621                 dprintk(1,
1622                         KERN_ERR
1623                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1624                         ZR_DEVNAME(zr));
1625                 return -EPERM;
1626         }
1627
1628         if (on == 0) {
1629                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1630                 zr->v4l_overlay_active = 0;
1631                 /* When a grab is running, the video simply
1632                  * won't be switched on any more */
1633                 if (!zr->v4l_memgrab_active)
1634                         zr36057_overlay(zr, 0);
1635                 zr->overlay_mask = NULL;
1636         } else {
1637                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1638                         dprintk(1,
1639                                 KERN_ERR
1640                                 "%s: setup_overlay() - buffer or window not set\n",
1641                                 ZR_DEVNAME(zr));
1642                         return -EINVAL;
1643                 }
1644                 if (!fh->overlay_settings.format) {
1645                         dprintk(1,
1646                                 KERN_ERR
1647                                 "%s: setup_overlay() - no overlay format set\n",
1648                                 ZR_DEVNAME(zr));
1649                         return -EINVAL;
1650                 }
1651                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1652                 zr->v4l_overlay_active = 1;
1653                 zr->overlay_mask = fh->overlay_mask;
1654                 zr->overlay_settings = fh->overlay_settings;
1655                 if (!zr->v4l_memgrab_active)
1656                         zr36057_overlay(zr, 1);
1657                 /* When a grab is running, the video will be
1658                  * switched on when grab is finished */
1659         }
1660
1661         /* Make sure the changes come into effect */
1662         return wait_grab_pending(zr);
1663 }
1664
1665         /* get the status of a buffer in the clients buffer queue */
1666 static int
1667 zoran_v4l2_buffer_status (struct file        *file,
1668                           struct v4l2_buffer *buf,
1669                           int                 num)
1670 {
1671         struct zoran_fh *fh = file->private_data;
1672         struct zoran *zr = fh->zr;
1673
1674         buf->flags = V4L2_BUF_FLAG_MAPPED;
1675
1676         switch (fh->map_mode) {
1677         case ZORAN_MAP_MODE_RAW:
1678
1679                 /* check range */
1680                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1681                     !fh->v4l_buffers.allocated) {
1682                         dprintk(1,
1683                                 KERN_ERR
1684                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1685                                 ZR_DEVNAME(zr));
1686                         return -EINVAL;
1687                 }
1688
1689                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1690                 buf->length = fh->v4l_buffers.buffer_size;
1691
1692                 /* get buffer */
1693                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1694                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1695                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1696                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1697                         buf->flags |= V4L2_BUF_FLAG_DONE;
1698                         buf->timestamp =
1699                             fh->v4l_buffers.buffer[num].bs.timestamp;
1700                 } else {
1701                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1702                 }
1703
1704                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1705                         buf->field = V4L2_FIELD_TOP;
1706                 else
1707                         buf->field = V4L2_FIELD_INTERLACED;
1708
1709                 break;
1710
1711         case ZORAN_MAP_MODE_JPG_REC:
1712         case ZORAN_MAP_MODE_JPG_PLAY:
1713
1714                 /* check range */
1715                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1716                     !fh->jpg_buffers.allocated) {
1717                         dprintk(1,
1718                                 KERN_ERR
1719                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1720                                 ZR_DEVNAME(zr));
1721                         return -EINVAL;
1722                 }
1723
1724                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1725                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1726                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1727                 buf->length = fh->jpg_buffers.buffer_size;
1728
1729                 /* these variables are only written after frame has been captured */
1730                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1731                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1732                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1733                         buf->timestamp =
1734                             fh->jpg_buffers.buffer[num].bs.timestamp;
1735                         buf->bytesused =
1736                             fh->jpg_buffers.buffer[num].bs.length;
1737                         buf->flags |= V4L2_BUF_FLAG_DONE;
1738                 } else {
1739                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1740                 }
1741
1742                 /* which fields are these? */
1743                 if (fh->jpg_settings.TmpDcm != 1)
1744                         buf->field =
1745                             fh->jpg_settings.
1746                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1747                 else
1748                         buf->field =
1749                             fh->jpg_settings.
1750                             odd_even ? V4L2_FIELD_SEQ_TB :
1751                             V4L2_FIELD_SEQ_BT;
1752
1753                 break;
1754
1755         default:
1756
1757                 dprintk(5,
1758                         KERN_ERR
1759                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1760                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1761                 return -EINVAL;
1762         }
1763
1764         buf->memory = V4L2_MEMORY_MMAP;
1765         buf->index = num;
1766         buf->m.offset = buf->length * num;
1767
1768         return 0;
1769 }
1770
1771 static int
1772 zoran_set_norm (struct zoran *zr,
1773                 int           norm) /* VIDEO_MODE_* */
1774 {
1775         int norm_encoder, on;
1776
1777         if (zr->v4l_buffers.active != ZORAN_FREE ||
1778             zr->jpg_buffers.active != ZORAN_FREE) {
1779                 dprintk(1,
1780                         KERN_WARNING
1781                         "%s: set_norm() called while in playback/capture mode\n",
1782                         ZR_DEVNAME(zr));
1783                 return -EBUSY;
1784         }
1785
1786         if (lock_norm && norm != zr->norm) {
1787                 if (lock_norm > 1) {
1788                         dprintk(1,
1789                                 KERN_WARNING
1790                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1791                                 ZR_DEVNAME(zr));
1792                         return -EPERM;
1793                 } else {
1794                         dprintk(1,
1795                                 KERN_WARNING
1796                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1797                                 ZR_DEVNAME(zr));
1798                         norm = zr->norm;
1799                 }
1800         }
1801
1802         if (norm != VIDEO_MODE_AUTO &&
1803             (norm < 0 || norm >= zr->card.norms ||
1804              !zr->card.tvn[norm])) {
1805                 dprintk(1,
1806                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1807                         ZR_DEVNAME(zr), norm);
1808                 return -EINVAL;
1809         }
1810
1811         if (norm == VIDEO_MODE_AUTO) {
1812                 int status;
1813
1814                 /* if we have autodetect, ... */
1815                 struct video_decoder_capability caps;
1816                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1817                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1818                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1819                                 ZR_DEVNAME(zr));
1820                         return -EINVAL;
1821                 }
1822
1823                 decoder_command(zr, DECODER_SET_NORM, &norm);
1824
1825                 /* let changes come into effect */
1826                 ssleep(2);
1827
1828                 decoder_command(zr, DECODER_GET_STATUS, &status);
1829                 if (!(status & DECODER_STATUS_GOOD)) {
1830                         dprintk(1,
1831                                 KERN_ERR
1832                                 "%s: set_norm() - no norm detected\n",
1833                                 ZR_DEVNAME(zr));
1834                         /* reset norm */
1835                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1836                         return -EIO;
1837                 }
1838
1839                 if (status & DECODER_STATUS_NTSC)
1840                         norm = VIDEO_MODE_NTSC;
1841                 else if (status & DECODER_STATUS_SECAM)
1842                         norm = VIDEO_MODE_SECAM;
1843                 else
1844                         norm = VIDEO_MODE_PAL;
1845         }
1846         zr->timing = zr->card.tvn[norm];
1847         norm_encoder = norm;
1848
1849         /* We switch overlay off and on since a change in the
1850          * norm needs different VFE settings */
1851         on = zr->overlay_active && !zr->v4l_memgrab_active;
1852         if (on)
1853                 zr36057_overlay(zr, 0);
1854
1855         decoder_command(zr, DECODER_SET_NORM, &norm);
1856         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1857
1858         if (on)
1859                 zr36057_overlay(zr, 1);
1860
1861         /* Make sure the changes come into effect */
1862         zr->norm = norm;
1863
1864         return 0;
1865 }
1866
1867 static int
1868 zoran_set_input (struct zoran *zr,
1869                  int           input)
1870 {
1871         int realinput;
1872
1873         if (input == zr->input) {
1874                 return 0;
1875         }
1876
1877         if (zr->v4l_buffers.active != ZORAN_FREE ||
1878             zr->jpg_buffers.active != ZORAN_FREE) {
1879                 dprintk(1,
1880                         KERN_WARNING
1881                         "%s: set_input() called while in playback/capture mode\n",
1882                         ZR_DEVNAME(zr));
1883                 return -EBUSY;
1884         }
1885
1886         if (input < 0 || input >= zr->card.inputs) {
1887                 dprintk(1,
1888                         KERN_ERR
1889                         "%s: set_input() - unnsupported input %d\n",
1890                         ZR_DEVNAME(zr), input);
1891                 return -EINVAL;
1892         }
1893
1894         realinput = zr->card.input[input].muxsel;
1895         zr->input = input;
1896
1897         decoder_command(zr, DECODER_SET_INPUT, &realinput);
1898
1899         return 0;
1900 }
1901
1902 /*
1903  *   ioctl routine
1904  */
1905
1906 static long zoran_do_ioctl(struct file *file, unsigned int cmd, void *arg)
1907 {
1908         struct zoran_fh *fh = file->private_data;
1909         struct zoran *zr = fh->zr;
1910         /* CAREFUL: used in multiple places here */
1911         struct zoran_jpg_settings settings;
1912
1913         /* we might have older buffers lying around... We don't want
1914          * to wait, but we do want to try cleaning them up ASAP. So
1915          * we try to obtain the lock and free them. If that fails, we
1916          * don't do anything and wait for the next turn. In the end,
1917          * zoran_close() or a new allocation will still free them...
1918          * This is just a 'the sooner the better' extra 'feature'
1919          *
1920          * We don't free the buffers right on munmap() because that
1921          * causes oopses (kfree() inside munmap() oopses for no
1922          * apparent reason - it's also not reproduceable in any way,
1923          * but moving the free code outside the munmap() handler fixes
1924          * all this... If someone knows why, please explain me (Ronald)
1925          */
1926         if (mutex_trylock(&zr->resource_lock)) {
1927                 /* we obtained it! Let's try to free some things */
1928                 if (fh->jpg_buffers.ready_to_be_freed)
1929                         jpg_fbuffer_free(file);
1930                 if (fh->v4l_buffers.ready_to_be_freed)
1931                         v4l_fbuffer_free(file);
1932
1933                 mutex_unlock(&zr->resource_lock);
1934         }
1935
1936         switch (cmd) {
1937
1938         case VIDIOCGCAP:
1939         {
1940                 struct video_capability *vcap = arg;
1941
1942                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1943
1944                 memset(vcap, 0, sizeof(struct video_capability));
1945                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
1946                 vcap->type = ZORAN_VID_TYPE;
1947
1948                 vcap->channels = zr->card.inputs;
1949                 vcap->audios = 0;
1950                 mutex_lock(&zr->resource_lock);
1951                 vcap->maxwidth = BUZ_MAX_WIDTH;
1952                 vcap->maxheight = BUZ_MAX_HEIGHT;
1953                 vcap->minwidth = BUZ_MIN_WIDTH;
1954                 vcap->minheight = BUZ_MIN_HEIGHT;
1955                 mutex_unlock(&zr->resource_lock);
1956
1957                 return 0;
1958         }
1959                 break;
1960
1961         case VIDIOCGCHAN:
1962         {
1963                 struct video_channel *vchan = arg;
1964                 int channel = vchan->channel;
1965
1966                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
1967                         ZR_DEVNAME(zr), vchan->channel);
1968
1969                 memset(vchan, 0, sizeof(struct video_channel));
1970                 if (channel > zr->card.inputs || channel < 0) {
1971                         dprintk(1,
1972                                 KERN_ERR
1973                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
1974                                 ZR_DEVNAME(zr), channel);
1975                         return -EINVAL;
1976                 }
1977
1978                 strcpy(vchan->name, zr->card.input[channel].name);
1979
1980                 vchan->tuners = 0;
1981                 vchan->flags = 0;
1982                 vchan->type = VIDEO_TYPE_CAMERA;
1983                 mutex_lock(&zr->resource_lock);
1984                 vchan->norm = zr->norm;
1985                 mutex_unlock(&zr->resource_lock);
1986                 vchan->channel = channel;
1987
1988                 return 0;
1989         }
1990                 break;
1991
1992                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
1993                  *
1994                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
1995                  * *                                 ^^^^^^^
1996                  * * The famos BTTV driver has it implemented with a struct video_channel argument
1997                  * * and we follow it for compatibility reasons
1998                  * *
1999                  * * BTW: this is the only way the user can set the norm!
2000                  */
2001
2002         case VIDIOCSCHAN:
2003         {
2004                 struct video_channel *vchan = arg;
2005                 int res;
2006
2007                 dprintk(3,
2008                         KERN_DEBUG
2009                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2010                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2011
2012                 mutex_lock(&zr->resource_lock);
2013                 if ((res = zoran_set_input(zr, vchan->channel)))
2014                         goto schan_unlock_and_return;
2015                 if ((res = zoran_set_norm(zr, vchan->norm)))
2016                         goto schan_unlock_and_return;
2017
2018                 /* Make sure the changes come into effect */
2019                 res = wait_grab_pending(zr);
2020         schan_unlock_and_return:
2021                 mutex_unlock(&zr->resource_lock);
2022                 return res;
2023         }
2024                 break;
2025
2026         case VIDIOCGPICT:
2027         {
2028                 struct video_picture *vpict = arg;
2029
2030                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2031
2032                 memset(vpict, 0, sizeof(struct video_picture));
2033                 mutex_lock(&zr->resource_lock);
2034                 vpict->hue = zr->hue;
2035                 vpict->brightness = zr->brightness;
2036                 vpict->contrast = zr->contrast;
2037                 vpict->colour = zr->saturation;
2038                 if (fh->overlay_settings.format) {
2039                         vpict->depth = fh->overlay_settings.format->depth;
2040                         vpict->palette = fh->overlay_settings.format->palette;
2041                 } else {
2042                         vpict->depth = 0;
2043                 }
2044                 mutex_unlock(&zr->resource_lock);
2045
2046                 return 0;
2047         }
2048                 break;
2049
2050         case VIDIOCSPICT:
2051         {
2052                 struct video_picture *vpict = arg;
2053                 int i;
2054
2055                 dprintk(3,
2056                         KERN_DEBUG
2057                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2058                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2059                         vpict->colour, vpict->contrast, vpict->depth,
2060                         vpict->palette);
2061
2062                 for (i = 0; i < NUM_FORMATS; i++) {
2063                         const struct zoran_format *fmt = &zoran_formats[i];
2064
2065                         if (fmt->palette != -1 &&
2066                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2067                             fmt->palette == vpict->palette &&
2068                             fmt->depth == vpict->depth)
2069                                 break;
2070                 }
2071                 if (i == NUM_FORMATS) {
2072                         dprintk(1,
2073                                 KERN_ERR
2074                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2075                                 ZR_DEVNAME(zr), vpict->palette);
2076                         return -EINVAL;
2077                 }
2078
2079                 mutex_lock(&zr->resource_lock);
2080
2081                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2082
2083                 zr->hue = vpict->hue;
2084                 zr->contrast = vpict->contrast;
2085                 zr->saturation = vpict->colour;
2086                 zr->brightness = vpict->brightness;
2087
2088                 fh->overlay_settings.format = &zoran_formats[i];
2089
2090                 mutex_unlock(&zr->resource_lock);
2091
2092                 return 0;
2093         }
2094                 break;
2095
2096         case VIDIOCCAPTURE:
2097         {
2098                 int *on = arg, res;
2099
2100                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2101                         ZR_DEVNAME(zr), *on);
2102
2103                 mutex_lock(&zr->resource_lock);
2104                 res = setup_overlay(file, *on);
2105                 mutex_unlock(&zr->resource_lock);
2106
2107                 return res;
2108         }
2109                 break;
2110
2111         case VIDIOCGWIN:
2112         {
2113                 struct video_window *vwin = arg;
2114
2115                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2116
2117                 memset(vwin, 0, sizeof(struct video_window));
2118                 mutex_lock(&zr->resource_lock);
2119                 vwin->x = fh->overlay_settings.x;
2120                 vwin->y = fh->overlay_settings.y;
2121                 vwin->width = fh->overlay_settings.width;
2122                 vwin->height = fh->overlay_settings.height;
2123                 mutex_unlock(&zr->resource_lock);
2124                 vwin->clipcount = 0;
2125                 return 0;
2126         }
2127                 break;
2128
2129         case VIDIOCSWIN:
2130         {
2131                 struct video_window *vwin = arg;
2132                 int res;
2133
2134                 dprintk(3,
2135                         KERN_DEBUG
2136                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2137                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2138                         vwin->height, vwin->clipcount);
2139
2140                 mutex_lock(&zr->resource_lock);
2141                 res =
2142                     setup_window(file, vwin->x, vwin->y, vwin->width,
2143                                  vwin->height, vwin->clips,
2144                                  vwin->clipcount, NULL);
2145                 mutex_unlock(&zr->resource_lock);
2146
2147                 return res;
2148         }
2149                 break;
2150
2151         case VIDIOCGFBUF:
2152         {
2153                 struct video_buffer *vbuf = arg;
2154
2155                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2156
2157                 mutex_lock(&zr->resource_lock);
2158                 *vbuf = zr->buffer;
2159                 mutex_unlock(&zr->resource_lock);
2160                 return 0;
2161         }
2162                 break;
2163
2164         case VIDIOCSFBUF:
2165         {
2166                 struct video_buffer *vbuf = arg;
2167                 int i, res = 0;
2168
2169                 dprintk(3,
2170                         KERN_DEBUG
2171                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2172                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2173                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2174
2175                 for (i = 0; i < NUM_FORMATS; i++)
2176                         if (zoran_formats[i].depth == vbuf->depth)
2177                                 break;
2178                 if (i == NUM_FORMATS) {
2179                         dprintk(1,
2180                                 KERN_ERR
2181                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2182                                 ZR_DEVNAME(zr), vbuf->depth);
2183                         return -EINVAL;
2184                 }
2185
2186                 mutex_lock(&zr->resource_lock);
2187                 res =
2188                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2189                                   vbuf->width, vbuf->height,
2190                                   vbuf->bytesperline);
2191                 mutex_unlock(&zr->resource_lock);
2192
2193                 return res;
2194         }
2195                 break;
2196
2197         case VIDIOCSYNC:
2198         {
2199                 int *frame = arg, res;
2200
2201                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2202                         ZR_DEVNAME(zr), *frame);
2203
2204                 mutex_lock(&zr->resource_lock);
2205                 res = v4l_sync(file, *frame);
2206                 mutex_unlock(&zr->resource_lock);
2207                 if (!res)
2208                         zr->v4l_sync_tail++;
2209                 return res;
2210         }
2211                 break;
2212
2213         case VIDIOCMCAPTURE:
2214         {
2215                 struct video_mmap *vmap = arg;
2216                 int res;
2217
2218                 dprintk(3,
2219                         KERN_DEBUG
2220                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2221                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2222                         vmap->format);
2223
2224                 mutex_lock(&zr->resource_lock);
2225                 res = v4l_grab(file, vmap);
2226                 mutex_unlock(&zr->resource_lock);
2227                 return res;
2228         }
2229                 break;
2230
2231         case VIDIOCGMBUF:
2232         {
2233                 struct video_mbuf *vmbuf = arg;
2234                 int i, res = 0;
2235
2236                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2237
2238                 vmbuf->size =
2239                     fh->v4l_buffers.num_buffers *
2240                     fh->v4l_buffers.buffer_size;
2241                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2242                 for (i = 0; i < vmbuf->frames; i++) {
2243                         vmbuf->offsets[i] =
2244                             i * fh->v4l_buffers.buffer_size;
2245                 }
2246
2247                 mutex_lock(&zr->resource_lock);
2248
2249                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2250                         dprintk(1,
2251                                 KERN_ERR
2252                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2253                                 ZR_DEVNAME(zr));
2254                         res = -EINVAL;
2255                         goto v4l1reqbuf_unlock_and_return;
2256                 }
2257
2258                 if (v4l_fbuffer_alloc(file)) {
2259                         res = -ENOMEM;
2260                         goto v4l1reqbuf_unlock_and_return;
2261                 }
2262
2263                 /* The next mmap will map the V4L buffers */
2264                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2265         v4l1reqbuf_unlock_and_return:
2266                 mutex_unlock(&zr->resource_lock);
2267
2268                 return res;
2269         }
2270                 break;
2271
2272         case VIDIOCGUNIT:
2273         {
2274                 struct video_unit *vunit = arg;
2275
2276                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2277
2278                 vunit->video = zr->video_dev->minor;
2279                 vunit->vbi = VIDEO_NO_UNIT;
2280                 vunit->radio = VIDEO_NO_UNIT;
2281                 vunit->audio = VIDEO_NO_UNIT;
2282                 vunit->teletext = VIDEO_NO_UNIT;
2283
2284                 return 0;
2285         }
2286                 break;
2287
2288                 /*
2289                  * RJ: In principal we could support subcaptures for V4L grabbing.
2290                  *     Not even the famous BTTV driver has them, however.
2291                  *     If there should be a strong demand, one could consider
2292                  *     to implement them.
2293                  */
2294         case VIDIOCGCAPTURE:
2295         {
2296                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2297                         ZR_DEVNAME(zr));
2298                 return -EINVAL;
2299         }
2300                 break;
2301
2302         case VIDIOCSCAPTURE:
2303         {
2304                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2305                         ZR_DEVNAME(zr));
2306                 return -EINVAL;
2307         }
2308                 break;
2309
2310         case BUZIOC_G_PARAMS:
2311         {
2312                 struct zoran_params *bparams = arg;
2313
2314                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2315
2316                 memset(bparams, 0, sizeof(struct zoran_params));
2317                 bparams->major_version = MAJOR_VERSION;
2318                 bparams->minor_version = MINOR_VERSION;
2319
2320                 mutex_lock(&zr->resource_lock);
2321
2322                 bparams->norm = zr->norm;
2323                 bparams->input = zr->input;
2324
2325                 bparams->decimation = fh->jpg_settings.decimation;
2326                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2327                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2328                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2329                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2330                 bparams->img_x = fh->jpg_settings.img_x;
2331                 bparams->img_y = fh->jpg_settings.img_y;
2332                 bparams->img_width = fh->jpg_settings.img_width;
2333                 bparams->img_height = fh->jpg_settings.img_height;
2334                 bparams->odd_even = fh->jpg_settings.odd_even;
2335
2336                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2337                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2338                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2339                 memcpy(bparams->APP_data,
2340                        fh->jpg_settings.jpg_comp.APP_data,
2341                        sizeof(bparams->APP_data));
2342                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2343                 memcpy(bparams->COM_data,
2344                        fh->jpg_settings.jpg_comp.COM_data,
2345                        sizeof(bparams->COM_data));
2346                 bparams->jpeg_markers =
2347                     fh->jpg_settings.jpg_comp.jpeg_markers;
2348
2349                 mutex_unlock(&zr->resource_lock);
2350
2351                 bparams->VFIFO_FB = 0;
2352
2353                 return 0;
2354         }
2355                 break;
2356
2357         case BUZIOC_S_PARAMS:
2358         {
2359                 struct zoran_params *bparams = arg;
2360                 int res = 0;
2361
2362                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2363
2364                 settings.decimation = bparams->decimation;
2365                 settings.HorDcm = bparams->HorDcm;
2366                 settings.VerDcm = bparams->VerDcm;
2367                 settings.TmpDcm = bparams->TmpDcm;
2368                 settings.field_per_buff = bparams->field_per_buff;
2369                 settings.img_x = bparams->img_x;
2370                 settings.img_y = bparams->img_y;
2371                 settings.img_width = bparams->img_width;
2372                 settings.img_height = bparams->img_height;
2373                 settings.odd_even = bparams->odd_even;
2374
2375                 settings.jpg_comp.quality = bparams->quality;
2376                 settings.jpg_comp.APPn = bparams->APPn;
2377                 settings.jpg_comp.APP_len = bparams->APP_len;
2378                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2379                        sizeof(bparams->APP_data));
2380                 settings.jpg_comp.COM_len = bparams->COM_len;
2381                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2382                        sizeof(bparams->COM_data));
2383                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2384
2385                 mutex_lock(&zr->resource_lock);
2386
2387                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2388                         dprintk(1,
2389                                 KERN_ERR
2390                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2391                                 ZR_DEVNAME(zr));
2392                         res = -EINVAL;
2393                         goto sparams_unlock_and_return;
2394                 }
2395
2396                 /* Check the params first before overwriting our
2397                  * nternal values */
2398                 if (zoran_check_jpg_settings(zr, &settings)) {
2399                         res = -EINVAL;
2400                         goto sparams_unlock_and_return;
2401                 }
2402
2403                 fh->jpg_settings = settings;
2404         sparams_unlock_and_return:
2405                 mutex_unlock(&zr->resource_lock);
2406
2407                 return res;
2408         }
2409                 break;
2410
2411         case BUZIOC_REQBUFS:
2412         {
2413                 struct zoran_requestbuffers *breq = arg;
2414                 int res = 0;
2415
2416                 dprintk(3,
2417                         KERN_DEBUG
2418                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2419                         ZR_DEVNAME(zr), breq->count, breq->size);
2420
2421                 /* Enforce reasonable lower and upper limits */
2422                 if (breq->count < 4)
2423                         breq->count = 4;        /* Could be choosen smaller */
2424                 if (breq->count > jpg_nbufs)
2425                         breq->count = jpg_nbufs;
2426                 breq->size = PAGE_ALIGN(breq->size);
2427                 if (breq->size < 8192)
2428                         breq->size = 8192;      /* Arbitrary */
2429                 /* breq->size is limited by 1 page for the stat_com
2430                  * tables to a Maximum of 2 MB */
2431                 if (breq->size > jpg_bufsize)
2432                         breq->size = jpg_bufsize;
2433                 if (fh->jpg_buffers.need_contiguous &&
2434                     breq->size > MAX_KMALLOC_MEM)
2435                         breq->size = MAX_KMALLOC_MEM;
2436
2437                 mutex_lock(&zr->resource_lock);
2438
2439                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2440                         dprintk(1,
2441                                 KERN_ERR
2442                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2443                                 ZR_DEVNAME(zr));
2444                         res = -EBUSY;
2445                         goto jpgreqbuf_unlock_and_return;
2446                 }
2447
2448                 fh->jpg_buffers.num_buffers = breq->count;
2449                 fh->jpg_buffers.buffer_size = breq->size;
2450
2451                 if (jpg_fbuffer_alloc(file)) {
2452                         res = -ENOMEM;
2453                         goto jpgreqbuf_unlock_and_return;
2454                 }
2455
2456                 /* The next mmap will map the MJPEG buffers - could
2457                  * also be *_PLAY, but it doesn't matter here */
2458                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2459         jpgreqbuf_unlock_and_return:
2460                 mutex_unlock(&zr->resource_lock);
2461
2462                 return res;
2463         }
2464                 break;
2465
2466         case BUZIOC_QBUF_CAPT:
2467         {
2468                 int *frame = arg, res;
2469
2470                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2471                         ZR_DEVNAME(zr), *frame);
2472
2473                 mutex_lock(&zr->resource_lock);
2474                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2475                 mutex_unlock(&zr->resource_lock);
2476
2477                 return res;
2478         }
2479                 break;
2480
2481         case BUZIOC_QBUF_PLAY:
2482         {
2483                 int *frame = arg, res;
2484
2485                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2486                         ZR_DEVNAME(zr), *frame);
2487
2488                 mutex_lock(&zr->resource_lock);
2489                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2490                 mutex_unlock(&zr->resource_lock);
2491
2492                 return res;
2493         }
2494                 break;
2495
2496         case BUZIOC_SYNC:
2497         {
2498                 struct zoran_sync *bsync = arg;
2499                 int res;
2500
2501                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2502
2503                 mutex_lock(&zr->resource_lock);
2504                 res = jpg_sync(file, bsync);
2505                 mutex_unlock(&zr->resource_lock);
2506
2507                 return res;
2508         }
2509                 break;
2510
2511         case BUZIOC_G_STATUS:
2512         {
2513                 struct zoran_status *bstat = arg;
2514                 int norm, input, status, res = 0;
2515
2516                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2517
2518                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2519                         dprintk(1,
2520                                 KERN_ERR
2521                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2522                                 ZR_DEVNAME(zr));
2523                         return -EINVAL;
2524                 }
2525
2526                 input = zr->card.input[bstat->input].muxsel;
2527                 norm = VIDEO_MODE_AUTO;
2528
2529                 mutex_lock(&zr->resource_lock);
2530
2531                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2532                         dprintk(1,
2533                                 KERN_ERR
2534                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2535                                 ZR_DEVNAME(zr));
2536                         res = -EINVAL;
2537                         goto gstat_unlock_and_return;
2538                 }
2539
2540                 decoder_command(zr, DECODER_SET_INPUT, &input);
2541                 decoder_command(zr, DECODER_SET_NORM, &norm);
2542
2543                 /* sleep 1 second */
2544                 ssleep(1);
2545
2546                 /* Get status of video decoder */
2547                 decoder_command(zr, DECODER_GET_STATUS, &status);
2548
2549                 /* restore previous input and norm */
2550                 input = zr->card.input[zr->input].muxsel;
2551                 decoder_command(zr, DECODER_SET_INPUT, &input);
2552                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2553         gstat_unlock_and_return:
2554                 mutex_unlock(&zr->resource_lock);
2555
2556                 if (!res) {
2557                         bstat->signal =
2558                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2559                         if (status & DECODER_STATUS_NTSC)
2560                                 bstat->norm = VIDEO_MODE_NTSC;
2561                         else if (status & DECODER_STATUS_SECAM)
2562                                 bstat->norm = VIDEO_MODE_SECAM;
2563                         else
2564                                 bstat->norm = VIDEO_MODE_PAL;
2565
2566                         bstat->color =
2567                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2568                 }
2569
2570                 return res;
2571         }
2572                 break;
2573
2574                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2575                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2576                  */
2577
2578         case VIDIOC_QUERYCAP:
2579         {
2580                 struct v4l2_capability *cap = arg;
2581
2582                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2583
2584                 memset(cap, 0, sizeof(*cap));
2585                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2586                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2587                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2588                          pci_name(zr->pci_dev));
2589                 cap->version =
2590                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2591                                    RELEASE_VERSION);
2592                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2593
2594                 return 0;
2595         }
2596                 break;
2597
2598         case VIDIOC_ENUM_FMT:
2599         {
2600                 struct v4l2_fmtdesc *fmt = arg;
2601                 int index = fmt->index, num = -1, i, flag = 0, type =
2602                     fmt->type;
2603
2604                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2605                         ZR_DEVNAME(zr), fmt->index);
2606
2607                 switch (fmt->type) {
2608                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2609                         flag = ZORAN_FORMAT_CAPTURE;
2610                         break;
2611                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2612                         flag = ZORAN_FORMAT_PLAYBACK;
2613                         break;
2614                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2615                         flag = ZORAN_FORMAT_OVERLAY;
2616                         break;
2617                 default:
2618                         dprintk(1,
2619                                 KERN_ERR
2620                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2621                                 ZR_DEVNAME(zr), fmt->type);
2622                         return -EINVAL;
2623                 }
2624
2625                 for (i = 0; i < NUM_FORMATS; i++) {
2626                         if (zoran_formats[i].flags & flag)
2627                                 num++;
2628                         if (num == fmt->index)
2629                                 break;
2630                 }
2631                 if (fmt->index < 0 /* late, but not too late */  ||
2632                     i == NUM_FORMATS)
2633                         return -EINVAL;
2634
2635                 memset(fmt, 0, sizeof(*fmt));
2636                 fmt->index = index;
2637                 fmt->type = type;
2638                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2639                 fmt->pixelformat = zoran_formats[i].fourcc;
2640                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2641                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2642
2643                 return 0;
2644         }
2645                 break;
2646
2647         case VIDIOC_G_FMT:
2648         {
2649                 struct v4l2_format *fmt = arg;
2650                 int type = fmt->type;
2651
2652                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2653
2654                 memset(fmt, 0, sizeof(*fmt));
2655                 fmt->type = type;
2656
2657                 switch (fmt->type) {
2658                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2659
2660                         mutex_lock(&zr->resource_lock);
2661
2662                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2663                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2664                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2665                         fmt->fmt.win.w.height =
2666                             fh->overlay_settings.height;
2667                         if (fh->overlay_settings.width * 2 >
2668                             BUZ_MAX_HEIGHT)
2669                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2670                         else
2671                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2672
2673                         mutex_unlock(&zr->resource_lock);
2674
2675                         break;
2676
2677                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2678                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2679
2680                         mutex_lock(&zr->resource_lock);
2681
2682                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2683                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2684
2685                                 fmt->fmt.pix.width =
2686                                     fh->v4l_settings.width;
2687                                 fmt->fmt.pix.height =
2688                                     fh->v4l_settings.height;
2689                                 fmt->fmt.pix.sizeimage =
2690                                     fh->v4l_settings.bytesperline *
2691                                     fh->v4l_settings.height;
2692                                 fmt->fmt.pix.pixelformat =
2693                                     fh->v4l_settings.format->fourcc;
2694                                 fmt->fmt.pix.colorspace =
2695                                     fh->v4l_settings.format->colorspace;
2696                                 fmt->fmt.pix.bytesperline =
2697                                     fh->v4l_settings.bytesperline;
2698                                 if (BUZ_MAX_HEIGHT <
2699                                     (fh->v4l_settings.height * 2))
2700                                         fmt->fmt.pix.field =
2701                                             V4L2_FIELD_INTERLACED;
2702                                 else
2703                                         fmt->fmt.pix.field =
2704                                             V4L2_FIELD_TOP;
2705
2706                         } else {
2707
2708                                 fmt->fmt.pix.width =
2709                                     fh->jpg_settings.img_width /
2710                                     fh->jpg_settings.HorDcm;
2711                                 fmt->fmt.pix.height =
2712                                     fh->jpg_settings.img_height /
2713                                     (fh->jpg_settings.VerDcm *
2714                                      fh->jpg_settings.TmpDcm);
2715                                 fmt->fmt.pix.sizeimage =
2716                                     zoran_v4l2_calc_bufsize(&fh->
2717                                                             jpg_settings);
2718                                 fmt->fmt.pix.pixelformat =
2719                                     V4L2_PIX_FMT_MJPEG;
2720                                 if (fh->jpg_settings.TmpDcm == 1)
2721                                         fmt->fmt.pix.field =
2722                                             (fh->jpg_settings.
2723                                              odd_even ? V4L2_FIELD_SEQ_BT :
2724                                              V4L2_FIELD_SEQ_BT);
2725                                 else
2726                                         fmt->fmt.pix.field =
2727                                             (fh->jpg_settings.
2728                                              odd_even ? V4L2_FIELD_TOP :
2729                                              V4L2_FIELD_BOTTOM);
2730
2731                                 fmt->fmt.pix.bytesperline = 0;
2732                                 fmt->fmt.pix.colorspace =
2733                                     V4L2_COLORSPACE_SMPTE170M;
2734                         }
2735
2736                         mutex_unlock(&zr->resource_lock);
2737
2738                         break;
2739
2740                 default:
2741                         dprintk(1,
2742                                 KERN_ERR
2743                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2744                                 ZR_DEVNAME(zr), fmt->type);
2745                         return -EINVAL;
2746                 }
2747                 return 0;
2748         }
2749                 break;
2750
2751         case VIDIOC_S_FMT:
2752         {
2753                 struct v4l2_format *fmt = arg;
2754                 int i, res = 0;
2755                 __le32 printformat;
2756
2757                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2758                         ZR_DEVNAME(zr), fmt->type);
2759
2760                 switch (fmt->type) {
2761                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2762
2763                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2764                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2765                                 fmt->fmt.win.w.width,
2766                                 fmt->fmt.win.w.height,
2767                                 fmt->fmt.win.clipcount,
2768                                 fmt->fmt.win.bitmap);
2769                         mutex_lock(&zr->resource_lock);
2770                         res =
2771                             setup_window(file, fmt->fmt.win.w.left,
2772                                          fmt->fmt.win.w.top,
2773                                          fmt->fmt.win.w.width,
2774                                          fmt->fmt.win.w.height,
2775                                          (struct video_clip __user *)
2776                                            fmt->fmt.win.clips,
2777                                          fmt->fmt.win.clipcount,
2778                                          fmt->fmt.win.bitmap);
2779                         mutex_unlock(&zr->resource_lock);
2780                         return res;
2781                         break;
2782
2783                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2784                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2785
2786                         printformat =
2787                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2788                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2789                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2790                                 fmt->fmt.pix.pixelformat,
2791                                 (char *) &printformat);
2792
2793                         /* we can be requested to do JPEG/raw playback/capture */
2794                         if (!
2795                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2796                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2797                               fmt->fmt.pix.pixelformat ==
2798                               V4L2_PIX_FMT_MJPEG))) {
2799                                 dprintk(1,
2800                                         KERN_ERR
2801                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2802                                         ZR_DEVNAME(zr), fmt->type,
2803                                         fmt->fmt.pix.pixelformat,
2804                                         (char *) &printformat);
2805                                 return -EINVAL;
2806                         }
2807
2808                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2809                                 mutex_lock(&zr->resource_lock);
2810
2811                                 settings = fh->jpg_settings;
2812
2813                                 if (fh->v4l_buffers.allocated ||
2814                                     fh->jpg_buffers.allocated) {
2815                                         dprintk(1,
2816                                                 KERN_ERR
2817                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2818                                                 ZR_DEVNAME(zr));
2819                                         res = -EBUSY;
2820                                         goto sfmtjpg_unlock_and_return;
2821                                 }
2822
2823                                 /* we actually need to set 'real' parameters now */
2824                                 if ((fmt->fmt.pix.height * 2) >
2825                                     BUZ_MAX_HEIGHT)
2826                                         settings.TmpDcm = 1;
2827                                 else
2828                                         settings.TmpDcm = 2;
2829                                 settings.decimation = 0;
2830                                 if (fmt->fmt.pix.height <=
2831                                     fh->jpg_settings.img_height / 2)
2832                                         settings.VerDcm = 2;
2833                                 else
2834                                         settings.VerDcm = 1;
2835                                 if (fmt->fmt.pix.width <=
2836                                     fh->jpg_settings.img_width / 4)
2837                                         settings.HorDcm = 4;
2838                                 else if (fmt->fmt.pix.width <=
2839                                          fh->jpg_settings.img_width / 2)
2840                                         settings.HorDcm = 2;
2841                                 else
2842                                         settings.HorDcm = 1;
2843                                 if (settings.TmpDcm == 1)
2844                                         settings.field_per_buff = 2;
2845                                 else
2846                                         settings.field_per_buff = 1;
2847
2848                                 /* check */
2849                                 if ((res =
2850                                      zoran_check_jpg_settings(zr,
2851                                                               &settings)))
2852                                         goto sfmtjpg_unlock_and_return;
2853
2854                                 /* it's ok, so set them */
2855                                 fh->jpg_settings = settings;
2856
2857                                 /* tell the user what we actually did */
2858                                 fmt->fmt.pix.width =
2859                                     settings.img_width / settings.HorDcm;
2860                                 fmt->fmt.pix.height =
2861                                     settings.img_height * 2 /
2862                                     (settings.TmpDcm * settings.VerDcm);
2863                                 if (settings.TmpDcm == 1)
2864                                         fmt->fmt.pix.field =
2865                                             (fh->jpg_settings.
2866                                              odd_even ? V4L2_FIELD_SEQ_TB :
2867                                              V4L2_FIELD_SEQ_BT);
2868                                 else
2869                                         fmt->fmt.pix.field =
2870                                             (fh->jpg_settings.
2871                                              odd_even ? V4L2_FIELD_TOP :
2872                                              V4L2_FIELD_BOTTOM);
2873                                 fh->jpg_buffers.buffer_size =
2874                                     zoran_v4l2_calc_bufsize(&fh->
2875                                                             jpg_settings);
2876                                 fmt->fmt.pix.bytesperline = 0;
2877                                 fmt->fmt.pix.sizeimage =
2878                                     fh->jpg_buffers.buffer_size;
2879                                 fmt->fmt.pix.colorspace =
2880                                     V4L2_COLORSPACE_SMPTE170M;
2881
2882                                 /* we hereby abuse this variable to show that
2883                                  * we're gonna do mjpeg capture */
2884                                 fh->map_mode =
2885                                     (fmt->type ==
2886                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2887                                     ZORAN_MAP_MODE_JPG_REC :
2888                                     ZORAN_MAP_MODE_JPG_PLAY;
2889                         sfmtjpg_unlock_and_return:
2890                                 mutex_unlock(&zr->resource_lock);
2891                         } else {
2892                                 for (i = 0; i < NUM_FORMATS; i++)
2893                                         if (fmt->fmt.pix.pixelformat ==
2894                                             zoran_formats[i].fourcc)
2895                                                 break;
2896                                 if (i == NUM_FORMATS) {
2897                                         dprintk(1,
2898                                                 KERN_ERR
2899                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2900                                                 ZR_DEVNAME(zr),
2901                                                 fmt->fmt.pix.pixelformat,
2902                                                 (char *) &printformat);
2903                                         return -EINVAL;
2904                                 }
2905                                 mutex_lock(&zr->resource_lock);
2906                                 if (fh->jpg_buffers.allocated ||
2907                                     (fh->v4l_buffers.allocated &&
2908                                      fh->v4l_buffers.active !=
2909                                      ZORAN_FREE)) {
2910                                         dprintk(1,
2911                                                 KERN_ERR
2912                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2913                                                 ZR_DEVNAME(zr));
2914                                         res = -EBUSY;
2915                                         goto sfmtv4l_unlock_and_return;
2916                                 }
2917                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2918                                         fmt->fmt.pix.height =
2919                                             BUZ_MAX_HEIGHT;
2920                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2921                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2922
2923                                 if ((res =
2924                                      zoran_v4l_set_format(file,
2925                                                           fmt->fmt.pix.
2926                                                           width,
2927                                                           fmt->fmt.pix.
2928                                                           height,
2929                                                           &zoran_formats
2930                                                           [i])))
2931                                         goto sfmtv4l_unlock_and_return;
2932
2933                                 /* tell the user the
2934                                  * results/missing stuff */
2935                                 fmt->fmt.pix.bytesperline =
2936                                         fh->v4l_settings.bytesperline;
2937                                 fmt->fmt.pix.sizeimage =
2938                                         fh->v4l_settings.height *
2939                                         fh->v4l_settings.bytesperline;
2940                                 fmt->fmt.pix.colorspace =
2941                                         fh->v4l_settings.format->colorspace;
2942                                 if (BUZ_MAX_HEIGHT <
2943                                     (fh->v4l_settings.height * 2))
2944                                         fmt->fmt.pix.field =
2945                                             V4L2_FIELD_INTERLACED;
2946                                 else
2947                                         fmt->fmt.pix.field =
2948                                             V4L2_FIELD_TOP;
2949
2950                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2951                         sfmtv4l_unlock_and_return:
2952                                 mutex_unlock(&zr->resource_lock);
2953                         }
2954
2955                         break;
2956
2957                 default:
2958                         dprintk(1,
2959                                 KERN_ERR
2960                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
2961                                 ZR_DEVNAME(zr), fmt->type);
2962                         return -EINVAL;
2963                 }
2964
2965                 return res;
2966         }
2967                 break;
2968
2969         case VIDIOC_G_FBUF:
2970         {
2971                 struct v4l2_framebuffer *fb = arg;
2972
2973                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
2974
2975                 memset(fb, 0, sizeof(*fb));
2976                 mutex_lock(&zr->resource_lock);
2977                 fb->base = zr->buffer.base;
2978                 fb->fmt.width = zr->buffer.width;
2979                 fb->fmt.height = zr->buffer.height;
2980                 if (zr->overlay_settings.format) {
2981                         fb->fmt.pixelformat =
2982                                 fh->overlay_settings.format->fourcc;
2983                 }
2984                 fb->fmt.bytesperline = zr->buffer.bytesperline;
2985                 mutex_unlock(&zr->resource_lock);
2986                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
2987                 fb->fmt.field = V4L2_FIELD_INTERLACED;
2988                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
2989                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2990
2991                 return 0;
2992         }
2993                 break;
2994
2995         case VIDIOC_S_FBUF:
2996         {
2997                 int i, res = 0;
2998                 struct v4l2_framebuffer *fb = arg;
2999                 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3000
3001                 dprintk(3,
3002                         KERN_DEBUG
3003                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3004                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3005                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3006                         (char *) &printformat);
3007
3008                 for (i = 0; i < NUM_FORMATS; i++)
3009                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3010                                 break;
3011                 if (i == NUM_FORMATS) {
3012                         dprintk(1,
3013                                 KERN_ERR
3014                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3015                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3016                                 (char *) &printformat);
3017                         return -EINVAL;
3018                 }
3019
3020                 mutex_lock(&zr->resource_lock);
3021                 res =
3022                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3023                                   fb->fmt.width, fb->fmt.height,
3024                                   fb->fmt.bytesperline);
3025                 mutex_unlock(&zr->resource_lock);
3026
3027                 return res;
3028         }
3029                 break;
3030
3031         case VIDIOC_OVERLAY:
3032         {
3033                 int *on = arg, res;
3034
3035                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3036                         ZR_DEVNAME(zr), *on);
3037
3038                 mutex_lock(&zr->resource_lock);
3039                 res = setup_overlay(file, *on);
3040                 mutex_unlock(&zr->resource_lock);
3041
3042                 return res;
3043         }
3044                 break;
3045
3046         case VIDIOC_REQBUFS:
3047         {
3048                 struct v4l2_requestbuffers *req = arg;
3049                 int res = 0;
3050
3051                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3052                         ZR_DEVNAME(zr), req->type);
3053
3054                 if (req->memory != V4L2_MEMORY_MMAP) {
3055                         dprintk(1,
3056                                 KERN_ERR
3057                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3058                                 ZR_DEVNAME(zr), req->memory);
3059                         return -EINVAL;
3060                 }
3061
3062                 mutex_lock(&zr->resource_lock);
3063
3064                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3065                         dprintk(1,
3066                                 KERN_ERR
3067                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3068                                 ZR_DEVNAME(zr));
3069                         res = -EBUSY;
3070                         goto v4l2reqbuf_unlock_and_return;
3071                 }
3072
3073                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3074                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3075
3076                         /* control user input */
3077                         if (req->count < 2)
3078                                 req->count = 2;
3079                         if (req->count > v4l_nbufs)
3080                                 req->count = v4l_nbufs;
3081                         fh->v4l_buffers.num_buffers = req->count;
3082
3083                         if (v4l_fbuffer_alloc(file)) {
3084                                 res = -ENOMEM;
3085                                 goto v4l2reqbuf_unlock_and_return;
3086                         }
3087
3088                         /* The next mmap will map the V4L buffers */
3089                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3090
3091                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3092                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3093
3094                         /* we need to calculate size ourselves now */
3095                         if (req->count < 4)
3096                                 req->count = 4;
3097                         if (req->count > jpg_nbufs)
3098                                 req->count = jpg_nbufs;
3099                         fh->jpg_buffers.num_buffers = req->count;
3100                         fh->jpg_buffers.buffer_size =
3101                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3102
3103                         if (jpg_fbuffer_alloc(file)) {
3104                                 res = -ENOMEM;
3105                                 goto v4l2reqbuf_unlock_and_return;
3106                         }
3107
3108                         /* The next mmap will map the MJPEG buffers */
3109                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3110                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3111                         else
3112                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3113
3114                 } else {
3115                         dprintk(1,
3116                                 KERN_ERR
3117                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3118                                 ZR_DEVNAME(zr), req->type);
3119                         res = -EINVAL;
3120                         goto v4l2reqbuf_unlock_and_return;
3121                 }
3122         v4l2reqbuf_unlock_and_return:
3123                 mutex_unlock(&zr->resource_lock);
3124
3125                 return 0;
3126         }
3127                 break;
3128
3129         case VIDIOC_QUERYBUF:
3130         {
3131                 struct v4l2_buffer *buf = arg;
3132                 __u32 type = buf->type;
3133                 int index = buf->index, res;
3134
3135                 dprintk(3,
3136                         KERN_DEBUG
3137                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3138                         ZR_DEVNAME(zr), buf->index, buf->type);
3139
3140                 memset(buf, 0, sizeof(*buf));
3141                 buf->type = type;
3142                 buf->index = index;
3143
3144                 mutex_lock(&zr->resource_lock);
3145                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3146                 mutex_unlock(&zr->resource_lock);
3147
3148                 return res;
3149         }
3150                 break;
3151
3152         case VIDIOC_QBUF:
3153         {
3154                 struct v4l2_buffer *buf = arg;
3155                 int res = 0, codec_mode, buf_type;
3156
3157                 dprintk(3,
3158                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3159                         ZR_DEVNAME(zr), buf->type, buf->index);
3160
3161                 mutex_lock(&zr->resource_lock);
3162
3163                 switch (fh->map_mode) {
3164                 case ZORAN_MAP_MODE_RAW:
3165                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3166                                 dprintk(1,
3167                                         KERN_ERR
3168                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3169                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3170                                 res = -EINVAL;
3171                                 goto qbuf_unlock_and_return;
3172                         }
3173
3174                         res = zoran_v4l_queue_frame(file, buf->index);
3175                         if (res)
3176                                 goto qbuf_unlock_and_return;
3177                         if (!zr->v4l_memgrab_active &&
3178                             fh->v4l_buffers.active == ZORAN_LOCKED)
3179                                 zr36057_set_memgrab(zr, 1);
3180                         break;
3181
3182                 case ZORAN_MAP_MODE_JPG_REC:
3183                 case ZORAN_MAP_MODE_JPG_PLAY:
3184                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3185                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3186                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3187                         } else {
3188                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3189                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3190                         }
3191
3192                         if (buf->type != buf_type) {
3193                                 dprintk(1,
3194                                         KERN_ERR
3195                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3196                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3197                                 res = -EINVAL;
3198                                 goto qbuf_unlock_and_return;
3199                         }
3200
3201                         res =
3202                             zoran_jpg_queue_frame(file, buf->index,
3203                                                   codec_mode);
3204                         if (res != 0)
3205                                 goto qbuf_unlock_and_return;
3206                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3207                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3208                                 zr36057_enable_jpg(zr, codec_mode);
3209                         }
3210                         break;
3211
3212                 default:
3213                         dprintk(1,
3214                                 KERN_ERR
3215                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3216                                 ZR_DEVNAME(zr), buf->type);
3217                         res = -EINVAL;
3218                         goto qbuf_unlock_and_return;
3219                 }
3220         qbuf_unlock_and_return:
3221                 mutex_unlock(&zr->resource_lock);
3222
3223                 return res;
3224         }
3225                 break;
3226
3227         case VIDIOC_DQBUF:
3228         {
3229                 struct v4l2_buffer *buf = arg;
3230                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3231
3232                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3233                         ZR_DEVNAME(zr), buf->type);
3234
3235                 mutex_lock(&zr->resource_lock);
3236
3237                 switch (fh->map_mode) {
3238                 case ZORAN_MAP_MODE_RAW:
3239                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3240                                 dprintk(1,
3241                                         KERN_ERR
3242                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3243                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3244                                 res = -EINVAL;
3245                                 goto dqbuf_unlock_and_return;
3246                         }
3247
3248                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3249                         if (file->f_flags & O_NONBLOCK &&
3250                             zr->v4l_buffers.buffer[num].state !=
3251                             BUZ_STATE_DONE) {
3252                                 res = -EAGAIN;
3253                                 goto dqbuf_unlock_and_return;
3254                         }
3255                         res = v4l_sync(file, num);
3256                         if (res)
3257                                 goto dqbuf_unlock_and_return;
3258                         else
3259                                 zr->v4l_sync_tail++;
3260                         res = zoran_v4l2_buffer_status(file, buf, num);
3261                         break;
3262
3263                 case ZORAN_MAP_MODE_JPG_REC:
3264                 case ZORAN_MAP_MODE_JPG_PLAY:
3265                 {
3266                         struct zoran_sync bs;
3267
3268                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3269                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3270                         else
3271                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3272
3273                         if (buf->type != buf_type) {
3274                                 dprintk(1,
3275                                         KERN_ERR
3276                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3277                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3278                                 res = -EINVAL;
3279                                 goto dqbuf_unlock_and_return;
3280                         }
3281
3282                         num =
3283                             zr->jpg_pend[zr->
3284                                          jpg_que_tail & BUZ_MASK_FRAME];
3285
3286                         if (file->f_flags & O_NONBLOCK &&
3287                             zr->jpg_buffers.buffer[num].state !=
3288                             BUZ_STATE_DONE) {
3289                                 res = -EAGAIN;
3290                                 goto dqbuf_unlock_and_return;
3291                         }
3292                         res = jpg_sync(file, &bs);
3293                         if (res)
3294                                 goto dqbuf_unlock_and_return;
3295                         res =
3296                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3297                         break;
3298                 }
3299
3300                 default:
3301                         dprintk(1,
3302                                 KERN_ERR
3303                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3304                                 ZR_DEVNAME(zr), buf->type);
3305                         res = -EINVAL;
3306                         goto dqbuf_unlock_and_return;
3307                 }
3308         dqbuf_unlock_and_return:
3309                 mutex_unlock(&zr->resource_lock);
3310
3311                 return res;
3312         }
3313                 break;
3314
3315         case VIDIOC_STREAMON:
3316         {
3317                 int res = 0;
3318
3319                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3320
3321                 mutex_lock(&zr->resource_lock);
3322
3323                 switch (fh->map_mode) {
3324                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3325                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3326                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3327                                 res = -EBUSY;
3328                                 goto strmon_unlock_and_return;
3329                         }
3330
3331                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3332                             ZORAN_LOCKED;
3333                         zr->v4l_settings = fh->v4l_settings;
3334
3335                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3336                         if (!zr->v4l_memgrab_active &&
3337                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3338                                 zr36057_set_memgrab(zr, 1);
3339                         }
3340                         break;
3341
3342                 case ZORAN_MAP_MODE_JPG_REC:
3343                 case ZORAN_MAP_MODE_JPG_PLAY:
3344                         /* what is the codec mode right now? */
3345                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3346                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3347                                 res = -EBUSY;
3348                                 goto strmon_unlock_and_return;
3349                         }
3350
3351                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3352                             ZORAN_LOCKED;
3353
3354                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3355                                 /* Start the jpeg codec when the first frame is queued  */
3356                                 jpeg_start(zr);
3357                         }
3358
3359                         break;
3360                 default:
3361                         dprintk(1,
3362                                 KERN_ERR
3363                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3364                                 ZR_DEVNAME(zr), fh->map_mode);
3365                         res = -EINVAL;
3366                         goto strmon_unlock_and_return;
3367                 }
3368         strmon_unlock_and_return:
3369                 mutex_unlock(&zr->resource_lock);
3370
3371                 return res;
3372         }
3373                 break;
3374
3375         case VIDIOC_STREAMOFF:
3376         {
3377                 int i, res = 0;
3378
3379                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3380
3381                 mutex_lock(&zr->resource_lock);
3382
3383                 switch (fh->map_mode) {
3384                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3385                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3386                             zr->v4l_buffers.active != ZORAN_FREE) {
3387                                 res = -EPERM;   /* stay off other's settings! */
3388                                 goto strmoff_unlock_and_return;
3389                         }
3390                         if (zr->v4l_buffers.active == ZORAN_FREE)
3391                                 goto strmoff_unlock_and_return;
3392
3393                         /* unload capture */
3394                         if (zr->v4l_memgrab_active) {
3395                                 unsigned long flags;
3396
3397                                 spin_lock_irqsave(&zr->spinlock, flags);
3398                                 zr36057_set_memgrab(zr, 0);
3399                                 spin_unlock_irqrestore(&zr->spinlock, flags);
3400                         }
3401
3402                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3403                                 zr->v4l_buffers.buffer[i].state =
3404                                     BUZ_STATE_USER;
3405                         fh->v4l_buffers = zr->v4l_buffers;
3406
3407                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3408                             ZORAN_FREE;
3409
3410                         zr->v4l_grab_seq = 0;
3411                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3412                         zr->v4l_sync_tail = 0;
3413
3414                         break;
3415
3416                 case ZORAN_MAP_MODE_JPG_REC:
3417                 case ZORAN_MAP_MODE_JPG_PLAY:
3418                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3419                             zr->jpg_buffers.active != ZORAN_FREE) {
3420                                 res = -EPERM;   /* stay off other's settings! */
3421                                 goto strmoff_unlock_and_return;
3422                         }
3423                         if (zr->jpg_buffers.active == ZORAN_FREE)
3424                                 goto strmoff_unlock_and_return;
3425
3426                         res =
3427                             jpg_qbuf(file, -1,
3428                                      (fh->map_mode ==
3429                                       ZORAN_MAP_MODE_JPG_REC) ?
3430                                      BUZ_MODE_MOTION_COMPRESS :
3431                                      BUZ_MODE_MOTION_DECOMPRESS);
3432                         if (res)
3433                                 goto strmoff_unlock_and_return;
3434                         break;
3435                 default:
3436                         dprintk(1,
3437                                 KERN_ERR
3438                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3439                                 ZR_DEVNAME(zr), fh->map_mode);
3440                         res = -EINVAL;
3441                         goto strmoff_unlock_and_return;
3442                 }
3443         strmoff_unlock_and_return:
3444                 mutex_unlock(&zr->resource_lock);
3445
3446                 return res;
3447         }
3448                 break;
3449
3450         case VIDIOC_QUERYCTRL:
3451         {
3452                 struct v4l2_queryctrl *ctrl = arg;
3453
3454                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3455                         ZR_DEVNAME(zr), ctrl->id);
3456
3457                 /* we only support hue/saturation/contrast/brightness */
3458                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3459                     ctrl->id > V4L2_CID_HUE)
3460                         return -EINVAL;
3461                 else {
3462                         int id = ctrl->id;
3463                         memset(ctrl, 0, sizeof(*ctrl));
3464                         ctrl->id = id;
3465                 }
3466
3467                 switch (ctrl->id) {
3468                 case V4L2_CID_BRIGHTNESS:
3469                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3470                         break;
3471                 case V4L2_CID_CONTRAST:
3472                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3473                         break;
3474                 case V4L2_CID_SATURATION:
3475                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3476                         break;
3477                 case V4L2_CID_HUE:
3478                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3479                         break;
3480                 }
3481
3482                 ctrl->minimum = 0;
3483                 ctrl->maximum = 65535;
3484                 ctrl->step = 1;
3485                 ctrl->default_value = 32768;
3486                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3487
3488                 return 0;
3489         }
3490                 break;
3491
3492         case VIDIOC_G_CTRL:
3493         {
3494                 struct v4l2_control *ctrl = arg;
3495
3496                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3497                         ZR_DEVNAME(zr), ctrl->id);
3498
3499                 /* we only support hue/saturation/contrast/brightness */
3500                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3501                     ctrl->id > V4L2_CID_HUE)
3502                         return -EINVAL;
3503
3504                 mutex_lock(&zr->resource_lock);
3505                 switch (ctrl->id) {
3506                 case V4L2_CID_BRIGHTNESS:
3507                         ctrl->value = zr->brightness;
3508                         break;
3509                 case V4L2_CID_CONTRAST:
3510                         ctrl->value = zr->contrast;
3511                         break;
3512                 case V4L2_CID_SATURATION:
3513                         ctrl->value = zr->saturation;
3514                         break;
3515                 case V4L2_CID_HUE:
3516                         ctrl->value = zr->hue;
3517                         break;
3518                 }
3519                 mutex_unlock(&zr->resource_lock);
3520
3521                 return 0;
3522         }
3523                 break;
3524
3525         case VIDIOC_S_CTRL:
3526         {
3527                 struct v4l2_control *ctrl = arg;
3528                 struct video_picture pict;
3529
3530                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3531                         ZR_DEVNAME(zr), ctrl->id);
3532
3533                 /* we only support hue/saturation/contrast/brightness */
3534                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3535                     ctrl->id > V4L2_CID_HUE)
3536                         return -EINVAL;
3537
3538                 if (ctrl->value < 0 || ctrl->value > 65535) {
3539                         dprintk(1,
3540                                 KERN_ERR
3541                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3542                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3543                         return -EINVAL;
3544                 }
3545
3546                 mutex_lock(&zr->resource_lock);
3547                 switch (ctrl->id) {
3548                 case V4L2_CID_BRIGHTNESS:
3549                         zr->brightness = ctrl->value;
3550                         break;
3551                 case V4L2_CID_CONTRAST:
3552                         zr->contrast = ctrl->value;
3553                         break;
3554                 case V4L2_CID_SATURATION:
3555                         zr->saturation = ctrl->value;
3556                         break;
3557                 case V4L2_CID_HUE:
3558                         zr->hue = ctrl->value;
3559                         break;
3560                 }
3561                 pict.brightness = zr->brightness;
3562                 pict.contrast = zr->contrast;
3563                 pict.colour = zr->saturation;
3564                 pict.hue = zr->hue;
3565
3566                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3567
3568                 mutex_unlock(&zr->resource_lock);
3569
3570                 return 0;
3571         }
3572                 break;
3573
3574         case VIDIOC_ENUMSTD:
3575         {
3576                 struct v4l2_standard *std = arg;
3577
3578                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3579                         ZR_DEVNAME(zr), std->index);
3580
3581                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3582                         return -EINVAL;
3583                 else {
3584                         int id = std->index;
3585                         memset(std, 0, sizeof(*std));
3586                         std->index = id;
3587                 }
3588
3589                 if (std->index == zr->card.norms) {
3590                         /* if we have autodetect, ... */
3591                         struct video_decoder_capability caps;
3592                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3593                                         &caps);
3594                         if (caps.flags & VIDEO_DECODER_AUTO) {
3595                                 std->id = V4L2_STD_ALL;
3596                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3597                                 return 0;
3598                         } else
3599                                 return -EINVAL;
3600                 }
3601                 switch (std->index) {
3602                 case 0:
3603                         std->id = V4L2_STD_PAL;
3604                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3605                         std->frameperiod.numerator = 1;
3606                         std->frameperiod.denominator = 25;
3607                         std->framelines = zr->card.tvn[0]->Ht;
3608                         break;
3609                 case 1:
3610                         std->id = V4L2_STD_NTSC;
3611                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3612                         std->frameperiod.numerator = 1001;
3613                         std->frameperiod.denominator = 30000;
3614                         std->framelines = zr->card.tvn[1]->Ht;
3615                         break;
3616                 case 2:
3617                         std->id = V4L2_STD_SECAM;
3618                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3619                         std->frameperiod.numerator = 1;
3620                         std->frameperiod.denominator = 25;
3621                         std->framelines = zr->card.tvn[2]->Ht;
3622                         break;
3623                 }
3624
3625                 return 0;
3626         }
3627                 break;
3628
3629         case VIDIOC_G_STD:
3630         {
3631                 v4l2_std_id *std = arg;
3632                 int norm;
3633
3634                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3635
3636                 mutex_lock(&zr->resource_lock);
3637                 norm = zr->norm;
3638                 mutex_unlock(&zr->resource_lock);
3639
3640                 switch (norm) {
3641                 case VIDEO_MODE_PAL:
3642                         *std = V4L2_STD_PAL;
3643                         break;
3644                 case VIDEO_MODE_NTSC:
3645                         *std = V4L2_STD_NTSC;
3646                         break;
3647                 case VIDEO_MODE_SECAM:
3648                         *std = V4L2_STD_SECAM;
3649                         break;
3650                 }
3651
3652                 return 0;
3653         }
3654                 break;
3655
3656         case VIDIOC_S_STD:
3657         {
3658                 int norm = -1, res = 0;
3659                 v4l2_std_id *std = arg;
3660
3661                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3662                         ZR_DEVNAME(zr), (unsigned long long)*std);
3663
3664                 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3665                         norm = VIDEO_MODE_PAL;
3666                 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3667                         norm = VIDEO_MODE_NTSC;
3668                 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3669                         norm = VIDEO_MODE_SECAM;
3670                 else if (*std == V4L2_STD_ALL)
3671                         norm = VIDEO_MODE_AUTO;
3672                 else {
3673                         dprintk(1,
3674                                 KERN_ERR
3675                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3676                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3677                         return -EINVAL;
3678                 }
3679
3680                 mutex_lock(&zr->resource_lock);
3681                 if ((res = zoran_set_norm(zr, norm)))
3682                         goto sstd_unlock_and_return;
3683
3684                 res = wait_grab_pending(zr);
3685         sstd_unlock_and_return:
3686                 mutex_unlock(&zr->resource_lock);
3687                 return res;
3688         }
3689                 break;
3690
3691         case VIDIOC_ENUMINPUT:
3692         {
3693                 struct v4l2_input *inp = arg;
3694                 int status;
3695
3696                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3697                         ZR_DEVNAME(zr), inp->index);
3698
3699                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3700                         return -EINVAL;
3701                 else {
3702                         int id = inp->index;
3703                         memset(inp, 0, sizeof(*inp));
3704                         inp->index = id;
3705                 }
3706
3707                 strncpy(inp->name, zr->card.input[inp->index].name,
3708                         sizeof(inp->name) - 1);
3709                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3710                 inp->std = V4L2_STD_ALL;
3711
3712                 /* Get status of video decoder */
3713                 mutex_lock(&zr->resource_lock);
3714                 decoder_command(zr, DECODER_GET_STATUS, &status);
3715                 mutex_unlock(&zr->resource_lock);
3716
3717                 if (!(status & DECODER_STATUS_GOOD)) {
3718                         inp->status |= V4L2_IN_ST_NO_POWER;
3719                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3720                 }
3721                 if (!(status & DECODER_STATUS_COLOR))
3722                         inp->status |= V4L2_IN_ST_NO_COLOR;
3723
3724                 return 0;
3725         }
3726                 break;
3727
3728         case VIDIOC_G_INPUT:
3729         {
3730                 int *input = arg;
3731
3732                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3733
3734                 mutex_lock(&zr->resource_lock);
3735                 *input = zr->input;
3736                 mutex_unlock(&zr->resource_lock);
3737
3738                 return 0;
3739         }
3740                 break;
3741
3742         case VIDIOC_S_INPUT:
3743         {
3744                 int *input = arg, res = 0;
3745
3746                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3747                         ZR_DEVNAME(zr), *input);
3748
3749                 mutex_lock(&zr->resource_lock);
3750                 if ((res = zoran_set_input(zr, *input)))
3751                         goto sinput_unlock_and_return;
3752
3753                 /* Make sure the changes come into effect */
3754                 res = wait_grab_pending(zr);
3755         sinput_unlock_and_return:
3756                 mutex_unlock(&zr->resource_lock);
3757                 return res;
3758         }
3759                 break;
3760
3761         case VIDIOC_ENUMOUTPUT:
3762         {
3763                 struct v4l2_output *outp = arg;
3764
3765                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3766                         ZR_DEVNAME(zr), outp->index);
3767
3768                 if (outp->index != 0)
3769                         return -EINVAL;
3770
3771                 memset(outp, 0, sizeof(*outp));
3772                 outp->index = 0;
3773                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3774                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3775
3776                 return 0;
3777         }
3778                 break;
3779
3780         case VIDIOC_G_OUTPUT:
3781         {
3782                 int *output = arg;
3783
3784                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3785
3786                 *output = 0;
3787
3788                 return 0;
3789         }
3790                 break;
3791
3792         case VIDIOC_S_OUTPUT:
3793         {
3794                 int *output = arg;
3795
3796                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3797                         ZR_DEVNAME(zr), *output);
3798
3799                 if (*output != 0)
3800                         return -EINVAL;
3801
3802                 return 0;
3803         }
3804                 break;
3805
3806                 /* cropping (sub-frame capture) */
3807         case VIDIOC_CROPCAP:
3808         {
3809                 struct v4l2_cropcap *cropcap = arg;
3810                 int type = cropcap->type, res = 0;
3811
3812                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3813                         ZR_DEVNAME(zr), cropcap->type);
3814
3815                 memset(cropcap, 0, sizeof(*cropcap));
3816                 cropcap->type = type;
3817
3818                 mutex_lock(&zr->resource_lock);
3819
3820                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3821                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3822                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3823                         dprintk(1,
3824                                 KERN_ERR
3825                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3826                                 ZR_DEVNAME(zr));
3827                         res = -EINVAL;
3828                         goto cropcap_unlock_and_return;
3829                 }
3830
3831                 cropcap->bounds.top = cropcap->bounds.left = 0;
3832                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3833                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3834                 cropcap->defrect.top = cropcap->defrect.left = 0;
3835                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3836                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3837         cropcap_unlock_and_return:
3838                 mutex_unlock(&zr->resource_lock);
3839                 return res;
3840         }
3841                 break;
3842
3843         case VIDIOC_G_CROP:
3844         {
3845                 struct v4l2_crop *crop = arg;
3846                 int type = crop->type, res = 0;
3847
3848                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3849                         ZR_DEVNAME(zr), crop->type);
3850
3851                 memset(crop, 0, sizeof(*crop));
3852                 crop->type = type;
3853
3854                 mutex_lock(&zr->resource_lock);
3855
3856                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3857                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3858                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3859                         dprintk(1,
3860                                 KERN_ERR
3861                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3862                                 ZR_DEVNAME(zr));
3863                         res = -EINVAL;
3864                         goto gcrop_unlock_and_return;
3865                 }
3866
3867                 crop->c.top = fh->jpg_settings.img_y;
3868                 crop->c.left = fh->jpg_settings.img_x;
3869                 crop->c.width = fh->jpg_settings.img_width;
3870                 crop->c.height = fh->jpg_settings.img_height;
3871
3872         gcrop_unlock_and_return:
3873                 mutex_unlock(&zr->resource_lock);
3874
3875                 return res;
3876         }
3877                 break;
3878
3879         case VIDIOC_S_CROP:
3880         {
3881                 struct v4l2_crop *crop = arg;
3882                 int res = 0;
3883
3884                 settings = fh->jpg_settings;
3885
3886                 dprintk(3,
3887                         KERN_ERR
3888                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3889                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3890                         crop->c.width, crop->c.height);
3891
3892                 mutex_lock(&zr->resource_lock);
3893
3894                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3895                         dprintk(1,
3896                                 KERN_ERR
3897                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3898                                 ZR_DEVNAME(zr));
3899                         res = -EBUSY;
3900                         goto scrop_unlock_and_return;
3901                 }
3902
3903                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3904                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3905                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3906                         dprintk(1,
3907                                 KERN_ERR
3908                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3909                                 ZR_DEVNAME(zr));
3910                         res = -EINVAL;
3911                         goto scrop_unlock_and_return;
3912                 }
3913
3914                 /* move into a form that we understand */
3915                 settings.img_x = crop->c.left;
3916                 settings.img_y = crop->c.top;
3917                 settings.img_width = crop->c.width;
3918                 settings.img_height = crop->c.height;
3919
3920                 /* check validity */
3921                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3922                         goto scrop_unlock_and_return;
3923
3924                 /* accept */
3925                 fh->jpg_settings = settings;
3926
3927         scrop_unlock_and_return:
3928                 mutex_unlock(&zr->resource_lock);
3929                 return res;
3930         }
3931                 break;
3932
3933         case VIDIOC_G_JPEGCOMP:
3934         {
3935                 struct v4l2_jpegcompression *params = arg;
3936
3937                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3938                         ZR_DEVNAME(zr));
3939
3940                 memset(params, 0, sizeof(*params));
3941
3942                 mutex_lock(&zr->resource_lock);
3943
3944                 params->quality = fh->jpg_settings.jpg_comp.quality;
3945                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3946                 memcpy(params->APP_data,
3947                        fh->jpg_settings.jpg_comp.APP_data,
3948                        fh->jpg_settings.jpg_comp.APP_len);
3949                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3950                 memcpy(params->COM_data,
3951                        fh->jpg_settings.jpg_comp.COM_data,
3952                        fh->jpg_settings.jpg_comp.COM_len);
3953                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3954                 params->jpeg_markers =
3955                     fh->jpg_settings.jpg_comp.jpeg_markers;
3956
3957                 mutex_unlock(&zr->resource_lock);
3958
3959                 return 0;
3960         }
3961                 break;
3962
3963         case VIDIOC_S_JPEGCOMP:
3964         {
3965                 struct v4l2_jpegcompression *params = arg;
3966                 int res = 0;
3967
3968                 settings = fh->jpg_settings;
3969
3970                 dprintk(3,
3971                         KERN_DEBUG
3972                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
3973                         ZR_DEVNAME(zr), params->quality, params->APPn,
3974                         params->APP_len, params->COM_len);
3975
3976                 settings.jpg_comp = *params;
3977
3978                 mutex_lock(&zr->resource_lock);
3979
3980                 if (fh->v4l_buffers.active != ZORAN_FREE ||
3981                     fh->jpg_buffers.active != ZORAN_FREE) {
3982                         dprintk(1,
3983                                 KERN_WARNING
3984                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
3985                                 ZR_DEVNAME(zr));
3986                         res = -EBUSY;
3987                         goto sjpegc_unlock_and_return;
3988                 }
3989
3990                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3991                         goto sjpegc_unlock_and_return;
3992                 if (!fh->jpg_buffers.allocated)
3993                         fh->jpg_buffers.buffer_size =
3994                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3995                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
3996         sjpegc_unlock_and_return:
3997                 mutex_unlock(&zr->resource_lock);
3998
3999                 return 0;
4000         }
4001                 break;
4002
4003         case VIDIOC_QUERYSTD:   /* why is this useful? */
4004         {
4005                 v4l2_std_id *std = arg;
4006
4007                 dprintk(3,
4008                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4009                         ZR_DEVNAME(zr), (unsigned long long)*std);
4010
4011                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4012                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4013                                              zr->card.norms == 3)) {
4014                         return 0;
4015                 }
4016
4017                 return -EINVAL;
4018         }
4019                 break;
4020
4021         case VIDIOC_TRY_FMT:
4022         {
4023                 struct v4l2_format *fmt = arg;
4024                 int res = 0;
4025
4026                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4027                         ZR_DEVNAME(zr), fmt->type);
4028
4029                 switch (fmt->type) {
4030                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4031                         mutex_lock(&zr->resource_lock);
4032
4033                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4034                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4035                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4036                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4037                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4038                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4039                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4040                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4041
4042                         mutex_unlock(&zr->resource_lock);
4043                         break;
4044
4045                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4046                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4047                         if (fmt->fmt.pix.bytesperline > 0)
4048                                 return -EINVAL;
4049
4050                         mutex_lock(&zr->resource_lock);
4051
4052                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4053                                 settings = fh->jpg_settings;
4054
4055                                 /* we actually need to set 'real' parameters now */
4056                                 if ((fmt->fmt.pix.height * 2) >
4057                                     BUZ_MAX_HEIGHT)
4058                                         settings.TmpDcm = 1;
4059                                 else
4060                                         settings.TmpDcm = 2;
4061                                 settings.decimation = 0;
4062                                 if (fmt->fmt.pix.height <=
4063                                     fh->jpg_settings.img_height / 2)
4064                                         settings.VerDcm = 2;
4065                                 else
4066                                         settings.VerDcm = 1;
4067                                 if (fmt->fmt.pix.width <=
4068                                     fh->jpg_settings.img_width / 4)
4069                                         settings.HorDcm = 4;
4070                                 else if (fmt->fmt.pix.width <=
4071                                          fh->jpg_settings.img_width / 2)
4072                                         settings.HorDcm = 2;
4073                                 else
4074                                         settings.HorDcm = 1;
4075                                 if (settings.TmpDcm == 1)
4076                                         settings.field_per_buff = 2;
4077                                 else
4078                                         settings.field_per_buff = 1;
4079
4080                                 /* check */
4081                                 if ((res =
4082                                      zoran_check_jpg_settings(zr,
4083                                                               &settings)))
4084                                         goto tryfmt_unlock_and_return;
4085
4086                                 /* tell the user what we actually did */
4087                                 fmt->fmt.pix.width =
4088                                     settings.img_width / settings.HorDcm;
4089                                 fmt->fmt.pix.height =
4090                                     settings.img_height * 2 /
4091                                     (settings.TmpDcm * settings.VerDcm);
4092                                 if (settings.TmpDcm == 1)
4093                                         fmt->fmt.pix.field =
4094                                             (fh->jpg_settings.
4095                                              odd_even ? V4L2_FIELD_SEQ_TB :
4096                                              V4L2_FIELD_SEQ_BT);
4097                                 else
4098                                         fmt->fmt.pix.field =
4099                                             (fh->jpg_settings.
4100                                              odd_even ? V4L2_FIELD_TOP :
4101                                              V4L2_FIELD_BOTTOM);
4102
4103                                 fmt->fmt.pix.sizeimage =
4104                                     zoran_v4l2_calc_bufsize(&settings);
4105                         } else if (fmt->type ==
4106                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4107                                 int i;
4108
4109                                 for (i = 0; i < NUM_FORMATS; i++)
4110                                         if (zoran_formats[i].fourcc ==
4111                                             fmt->fmt.pix.pixelformat)
4112                                                 break;
4113                                 if (i == NUM_FORMATS) {
4114                                         res = -EINVAL;
4115                                         goto tryfmt_unlock_and_return;
4116                                 }
4117
4118                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4119                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4120                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4121                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4122                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4123                                         fmt->fmt.pix.height =
4124                                             BUZ_MAX_HEIGHT;
4125                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4126                                         fmt->fmt.pix.height =
4127                                             BUZ_MIN_HEIGHT;
4128                         } else {
4129                                 res = -EINVAL;
4130                                 goto tryfmt_unlock_and_return;
4131                         }
4132                 tryfmt_unlock_and_return:
4133                         mutex_unlock(&zr->resource_lock);
4134
4135                         return res;
4136                         break;
4137
4138                 default:
4139                         return -EINVAL;
4140                 }
4141
4142                 return 0;
4143         }
4144                 break;
4145
4146         default:
4147                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4148                         ZR_DEVNAME(zr), cmd);
4149                 return -ENOIOCTLCMD;
4150                 break;
4151
4152         }
4153         return 0;
4154 }
4155
4156
4157 static long
4158 zoran_ioctl(struct file  *file,
4159             unsigned int  cmd,
4160             unsigned long arg)
4161 {
4162         return video_usercopy(file, cmd, arg, zoran_do_ioctl);
4163 }
4164
4165 static unsigned int
4166 zoran_poll (struct file *file,
4167             poll_table  *wait)
4168 {
4169         struct zoran_fh *fh = file->private_data;
4170         struct zoran *zr = fh->zr;
4171         int res = 0, frame;
4172         unsigned long flags;
4173
4174         /* we should check whether buffers are ready to be synced on
4175          * (w/o waits - O_NONBLOCK) here
4176          * if ready for read (sync), return POLLIN|POLLRDNORM,
4177          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4178          * if error, return POLLERR,
4179          * if no buffers queued or so, return POLLNVAL
4180          */
4181
4182         mutex_lock(&zr->resource_lock);
4183
4184         switch (fh->map_mode) {
4185         case ZORAN_MAP_MODE_RAW:
4186                 poll_wait(file, &zr->v4l_capq, wait);
4187                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4188
4189                 spin_lock_irqsave(&zr->spinlock, flags);
4190                 dprintk(3,
4191                         KERN_DEBUG
4192                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4193                         ZR_DEVNAME(zr), __func__,
4194                         "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4195                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
4196                         zr->v4l_pend_tail, zr->v4l_pend_head);
4197                 /* Process is the one capturing? */
4198                 if (fh->v4l_buffers.active != ZORAN_FREE &&
4199                     /* Buffer ready to DQBUF? */
4200                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4201                         res = POLLIN | POLLRDNORM;
4202                 spin_unlock_irqrestore(&zr->spinlock, flags);
4203
4204                 break;
4205
4206         case ZORAN_MAP_MODE_JPG_REC:
4207         case ZORAN_MAP_MODE_JPG_PLAY:
4208                 poll_wait(file, &zr->jpg_capq, wait);
4209                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4210
4211                 spin_lock_irqsave(&zr->spinlock, flags);
4212                 dprintk(3,
4213                         KERN_DEBUG
4214                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4215                         ZR_DEVNAME(zr), __func__,
4216                         "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4217                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
4218                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4219                 if (fh->jpg_buffers.active != ZORAN_FREE &&
4220                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4221                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4222                                 res = POLLIN | POLLRDNORM;
4223                         else
4224                                 res = POLLOUT | POLLWRNORM;
4225                 }
4226                 spin_unlock_irqrestore(&zr->spinlock, flags);
4227
4228                 break;
4229
4230         default:
4231                 dprintk(1,
4232                         KERN_ERR
4233                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4234                         ZR_DEVNAME(zr), fh->map_mode);
4235                 res = POLLNVAL;
4236         }
4237
4238         mutex_unlock(&zr->resource_lock);
4239
4240         return res;
4241 }
4242
4243
4244 /*
4245  * This maps the buffers to user space.
4246  *
4247  * Depending on the state of fh->map_mode
4248  * the V4L or the MJPEG buffers are mapped
4249  * per buffer or all together
4250  *
4251  * Note that we need to connect to some
4252  * unmap signal event to unmap the de-allocate
4253  * the buffer accordingly (zoran_vm_close())
4254  */
4255
4256 static void
4257 zoran_vm_open (struct vm_area_struct *vma)
4258 {
4259         struct zoran_mapping *map = vma->vm_private_data;
4260
4261         map->count++;
4262 }
4263
4264 static void
4265 zoran_vm_close (struct vm_area_struct *vma)
4266 {
4267         struct zoran_mapping *map = vma->vm_private_data;
4268         struct file *file = map->file;
4269         struct zoran_fh *fh = file->private_data;
4270         struct zoran *zr = fh->zr;
4271         int i;
4272
4273         map->count--;
4274         if (map->count == 0) {
4275                 switch (fh->map_mode) {
4276                 case ZORAN_MAP_MODE_JPG_REC:
4277                 case ZORAN_MAP_MODE_JPG_PLAY:
4278
4279                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4280                                 ZR_DEVNAME(zr));
4281
4282                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4283                                 if (fh->jpg_buffers.buffer[i].map == map) {
4284                                         fh->jpg_buffers.buffer[i].map =
4285                                             NULL;
4286                                 }
4287                         }
4288                         kfree(map);
4289
4290                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4291                                 if (fh->jpg_buffers.buffer[i].map)
4292                                         break;
4293                         if (i == fh->jpg_buffers.num_buffers) {
4294                                 mutex_lock(&zr->resource_lock);
4295
4296                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4297                                         jpg_qbuf(file, -1, zr->codec_mode);
4298                                         zr->jpg_buffers.allocated = 0;
4299                                         zr->jpg_buffers.active =
4300                                             fh->jpg_buffers.active =
4301                                             ZORAN_FREE;
4302                                 }
4303                                 //jpg_fbuffer_free(file);
4304                                 fh->jpg_buffers.allocated = 0;
4305                                 fh->jpg_buffers.ready_to_be_freed = 1;
4306
4307                                 mutex_unlock(&zr->resource_lock);
4308                         }
4309
4310                         break;
4311
4312                 case ZORAN_MAP_MODE_RAW:
4313
4314                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4315                                 ZR_DEVNAME(zr));
4316
4317                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4318                                 if (fh->v4l_buffers.buffer[i].map == map) {
4319                                         /* unqueue/unmap */
4320                                         fh->v4l_buffers.buffer[i].map =
4321                                             NULL;
4322                                 }
4323                         }
4324                         kfree(map);
4325
4326                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4327                                 if (fh->v4l_buffers.buffer[i].map)
4328                                         break;
4329                         if (i == fh->v4l_buffers.num_buffers) {
4330                                 mutex_lock(&zr->resource_lock);
4331
4332                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4333                                         unsigned long flags;
4334
4335                                         spin_lock_irqsave(&zr->spinlock, flags);
4336                                         zr36057_set_memgrab(zr, 0);
4337                                         zr->v4l_buffers.allocated = 0;
4338                                         zr->v4l_buffers.active =
4339                                             fh->v4l_buffers.active =
4340                                             ZORAN_FREE;
4341                                         spin_unlock_irqrestore(&zr->spinlock, flags);
4342                                 }
4343                                 //v4l_fbuffer_free(file);
4344                                 fh->v4l_buffers.allocated = 0;
4345                                 fh->v4l_buffers.ready_to_be_freed = 1;
4346
4347                                 mutex_unlock(&zr->resource_lock);
4348                         }
4349
4350                         break;
4351
4352                 default:
4353                         printk(KERN_ERR
4354                                "%s: munmap() - internal error - unknown map mode %d\n",
4355                                ZR_DEVNAME(zr), fh->map_mode);
4356                         break;
4357
4358                 }
4359         }
4360 }
4361
4362 static struct vm_operations_struct zoran_vm_ops = {
4363         .open = zoran_vm_open,
4364         .close = zoran_vm_close,
4365 };
4366
4367 static int
4368 zoran_mmap (struct file           *file,
4369             struct vm_area_struct *vma)
4370 {
4371         struct zoran_fh *fh = file->private_data;
4372         struct zoran *zr = fh->zr;
4373         unsigned long size = (vma->vm_end - vma->vm_start);
4374         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4375         int i, j;
4376         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4377         int first, last;
4378         struct zoran_mapping *map;
4379         int res = 0;
4380
4381         dprintk(3,
4382                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4383                 ZR_DEVNAME(zr),
4384                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4385                 vma->vm_start, vma->vm_end, size);
4386
4387         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4388             !(vma->vm_flags & VM_WRITE)) {
4389                 dprintk(1,
4390                         KERN_ERR
4391                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4392                         ZR_DEVNAME(zr));
4393                 return -EINVAL;
4394         }
4395
4396         switch (fh->map_mode) {
4397
4398         case ZORAN_MAP_MODE_JPG_REC:
4399         case ZORAN_MAP_MODE_JPG_PLAY:
4400
4401                 /* lock */
4402                 mutex_lock(&zr->resource_lock);
4403
4404                 /* Map the MJPEG buffers */
4405                 if (!fh->jpg_buffers.allocated) {
4406                         dprintk(1,
4407                                 KERN_ERR
4408                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4409                                 ZR_DEVNAME(zr));
4410                         res = -ENOMEM;
4411                         goto jpg_mmap_unlock_and_return;
4412                 }
4413
4414                 first = offset / fh->jpg_buffers.buffer_size;
4415                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4416                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4417                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4418                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4419                     last >= fh->jpg_buffers.num_buffers) {
4420                         dprintk(1,
4421                                 KERN_ERR
4422                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4423                                 ZR_DEVNAME(zr), offset, size,
4424                                 fh->jpg_buffers.buffer_size,
4425                                 fh->jpg_buffers.num_buffers);
4426                         res = -EINVAL;
4427                         goto jpg_mmap_unlock_and_return;
4428                 }
4429                 for (i = first; i <= last; i++) {
4430                         if (fh->jpg_buffers.buffer[i].map) {
4431                                 dprintk(1,
4432                                         KERN_ERR
4433                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4434                                         ZR_DEVNAME(zr), i);
4435                                 res = -EBUSY;
4436                                 goto jpg_mmap_unlock_and_return;
4437                         }
4438                 }
4439
4440                 /* map these buffers (v4l_buffers[i]) */
4441                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4442                 if (!map) {
4443                         res = -ENOMEM;
4444                         goto jpg_mmap_unlock_and_return;
4445                 }
4446                 map->file = file;
4447                 map->count = 1;
4448
4449                 vma->vm_ops = &zoran_vm_ops;
4450                 vma->vm_flags |= VM_DONTEXPAND;
4451                 vma->vm_private_data = map;
4452
4453                 for (i = first; i <= last; i++) {
4454                         for (j = 0;
4455                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4456                              j++) {
4457                                 fraglen =
4458                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4459                                      frag_tab[2 * j + 1]) & ~1) << 1;
4460                                 todo = size;
4461                                 if (todo > fraglen)
4462                                         todo = fraglen;
4463                                 pos =
4464                                     le32_to_cpu(fh->jpg_buffers.
4465                                     buffer[i].frag_tab[2 * j]);
4466                                 /* should just be pos on i386 */
4467                                 page = virt_to_phys(bus_to_virt(pos))
4468                                                                 >> PAGE_SHIFT;
4469                                 if (remap_pfn_range(vma, start, page,
4470                                                         todo, PAGE_SHARED)) {
4471                                         dprintk(1,
4472                                                 KERN_ERR
4473                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4474                                                 ZR_DEVNAME(zr));
4475                                         res = -EAGAIN;
4476                                         goto jpg_mmap_unlock_and_return;
4477                                 }
4478                                 size -= todo;
4479                                 start += todo;
4480                                 if (size == 0)
4481                                         break;
4482                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4483                                     frag_tab[2 * j + 1]) & 1)
4484                                         break;  /* was last fragment */
4485                         }
4486                         fh->jpg_buffers.buffer[i].map = map;
4487                         if (size == 0)
4488                                 break;
4489
4490                 }
4491         jpg_mmap_unlock_and_return:
4492                 mutex_unlock(&zr->resource_lock);
4493
4494                 break;
4495
4496         case ZORAN_MAP_MODE_RAW:
4497
4498                 mutex_lock(&zr->resource_lock);
4499
4500                 /* Map the V4L buffers */
4501                 if (!fh->v4l_buffers.allocated) {
4502                         dprintk(1,
4503                                 KERN_ERR
4504                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4505                                 ZR_DEVNAME(zr));
4506                         res = -ENOMEM;
4507                         goto v4l_mmap_unlock_and_return;
4508                 }
4509
4510                 first = offset / fh->v4l_buffers.buffer_size;
4511                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4512                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4513                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4514                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4515                     last >= fh->v4l_buffers.buffer_size) {
4516                         dprintk(1,
4517                                 KERN_ERR
4518                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4519                                 ZR_DEVNAME(zr), offset, size,
4520                                 fh->v4l_buffers.buffer_size,
4521                                 fh->v4l_buffers.num_buffers);
4522                         res = -EINVAL;
4523                         goto v4l_mmap_unlock_and_return;
4524                 }
4525                 for (i = first; i <= last; i++) {
4526                         if (fh->v4l_buffers.buffer[i].map) {
4527                                 dprintk(1,
4528                                         KERN_ERR
4529                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4530                                         ZR_DEVNAME(zr), i);
4531                                 res = -EBUSY;
4532                                 goto v4l_mmap_unlock_and_return;
4533                         }
4534                 }
4535
4536                 /* map these buffers (v4l_buffers[i]) */
4537                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4538                 if (!map) {
4539                         res = -ENOMEM;
4540                         goto v4l_mmap_unlock_and_return;
4541                 }
4542                 map->file = file;
4543                 map->count = 1;
4544
4545                 vma->vm_ops = &zoran_vm_ops;
4546                 vma->vm_flags |= VM_DONTEXPAND;
4547                 vma->vm_private_data = map;
4548
4549                 for (i = first; i <= last; i++) {
4550                         todo = size;
4551                         if (todo > fh->v4l_buffers.buffer_size)
4552                                 todo = fh->v4l_buffers.buffer_size;
4553                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4554                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4555                                                         todo, PAGE_SHARED)) {
4556                                 dprintk(1,
4557                                         KERN_ERR
4558                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4559                                         ZR_DEVNAME(zr));
4560                                 res = -EAGAIN;
4561                                 goto v4l_mmap_unlock_and_return;
4562                         }
4563                         size -= todo;
4564                         start += todo;
4565                         fh->v4l_buffers.buffer[i].map = map;
4566                         if (size == 0)
4567                                 break;
4568                 }
4569         v4l_mmap_unlock_and_return:
4570                 mutex_unlock(&zr->resource_lock);
4571
4572                 break;
4573
4574         default:
4575                 dprintk(1,
4576                         KERN_ERR
4577                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4578                         ZR_DEVNAME(zr), fh->map_mode);
4579                 break;
4580         }
4581
4582         return 0;
4583 }
4584
4585 static const struct v4l2_file_operations zoran_fops = {
4586         .owner = THIS_MODULE,
4587         .open = zoran_open,
4588         .release = zoran_close,
4589         .ioctl = zoran_ioctl,
4590         .read = zoran_read,
4591         .write = zoran_write,
4592         .mmap = zoran_mmap,
4593         .poll = zoran_poll,
4594 };
4595
4596 struct video_device zoran_template __devinitdata = {
4597         .name = ZORAN_NAME,
4598         .fops = &zoran_fops,
4599         .release = &zoran_vdev_release,
4600         .minor = -1
4601 };
4602