drivers/media/video/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/config.h>
  48 #include <linux/version.h>
  49 #include <linux/init.h>
  50 #include <linux/module.h>
  51 #include <linux/delay.h>
  52 #include <linux/slab.h>
  53 #include <linux/pci.h>
  54 #include <linux/vmalloc.h>
  55 #include <linux/wait.h>
  56 #include <linux/byteorder/generic.h>
  57
  58 #include <linux/interrupt.h>
  59 #include <linux/i2c.h>
  60 #include <linux/i2c-algo-bit.h>
  61
  62 #include <linux/spinlock.h>
  63 #define     MAP_NR(x)       virt_to_page(x)
  64 #define     ZORAN_HARDWARE  VID_HARDWARE_ZR36067
  65 #define     ZORAN_VID_TYPE  ( \
  66                                 VID_TYPE_CAPTURE | \
  67                                 VID_TYPE_OVERLAY | \
  68                                 VID_TYPE_CLIPPING | \
  69                                 VID_TYPE_FRAMERAM | \
  70                                 VID_TYPE_SCALES | \
  71                                 VID_TYPE_MJPEG_DECODER | \
  72                                 VID_TYPE_MJPEG_ENCODER \
  73                              )
  74
  75 #include <linux/videodev.h>
  76 #include <media/v4l2-common.h>
  77 #include "videocodec.h"
  78
  79 #include <asm/io.h>
  80 #include <asm/uaccess.h>
  81 #include <linux/proc_fs.h>
  82
  83 #include <linux/video_decoder.h>
  84 #include <linux/video_encoder.h>
  85 #include <linux/mutex.h>
  86 #include "zoran.h"
  87 #include "zoran_device.h"
  88 #include "zoran_card.h"
  89
  90 #ifdef HAVE_V4L2
  91         /* we declare some card type definitions here, they mean
  92          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  93 #define ZORAN_V4L2_VID_FLAGS ( \
  94                                 V4L2_CAP_STREAMING |\
  95                                 V4L2_CAP_VIDEO_CAPTURE |\
  96                                 V4L2_CAP_VIDEO_OUTPUT |\
  97                                 V4L2_CAP_VIDEO_OVERLAY \
  98                               )
  99 #endif
 100
 101 #include <asm/byteorder.h>
 102
 103 const struct zoran_format zoran_formats[] = {
 104         {
 105                 .name = "15-bit RGB",
 106                 .palette = VIDEO_PALETTE_RGB555,
 107 #ifdef HAVE_V4L2
 108 #ifdef __LITTLE_ENDIAN
 109                 .fourcc = V4L2_PIX_FMT_RGB555,
 110 #else
 111                 .fourcc = V4L2_PIX_FMT_RGB555X,
 112 #endif
 113                 .colorspace = V4L2_COLORSPACE_SRGB,
 114 #endif
 115                 .depth = 15,
 116                 .flags = ZORAN_FORMAT_CAPTURE |
 117                          ZORAN_FORMAT_OVERLAY,
 118         }, {
 119                 .name = "16-bit RGB",
 120                 .palette = VIDEO_PALETTE_RGB565,
 121 #ifdef HAVE_V4L2
 122 #ifdef __LITTLE_ENDIAN
 123                 .fourcc = V4L2_PIX_FMT_RGB565,
 124 #else
 125                 .fourcc = V4L2_PIX_FMT_RGB565X,
 126 #endif
 127                 .colorspace = V4L2_COLORSPACE_SRGB,
 128 #endif
 129                 .depth = 16,
 130                 .flags = ZORAN_FORMAT_CAPTURE |
 131                          ZORAN_FORMAT_OVERLAY,
 132         }, {
 133                 .name = "24-bit RGB",
 134                 .palette = VIDEO_PALETTE_RGB24,
 135 #ifdef HAVE_V4L2
 136 #ifdef __LITTLE_ENDIAN
 137                 .fourcc = V4L2_PIX_FMT_BGR24,
 138 #else
 139                 .fourcc = V4L2_PIX_FMT_RGB24,
 140 #endif
 141                 .colorspace = V4L2_COLORSPACE_SRGB,
 142 #endif
 143                 .depth = 24,
 144                 .flags = ZORAN_FORMAT_CAPTURE |
 145                          ZORAN_FORMAT_OVERLAY,
 146         }, {
 147                 .name = "32-bit RGB",
 148                 .palette = VIDEO_PALETTE_RGB32,
 149 #ifdef HAVE_V4L2
 150 #ifdef __LITTLE_ENDIAN
 151                 .fourcc = V4L2_PIX_FMT_BGR32,
 152 #else
 153                 .fourcc = V4L2_PIX_FMT_RGB32,
 154 #endif
 155                 .colorspace = V4L2_COLORSPACE_SRGB,
 156 #endif
 157                 .depth = 32,
 158                 .flags = ZORAN_FORMAT_CAPTURE |
 159                          ZORAN_FORMAT_OVERLAY,
 160         }, {
 161                 .name = "4:2:2, packed, YUYV",
 162                 .palette = VIDEO_PALETTE_YUV422,
 163 #ifdef HAVE_V4L2
 164                 .fourcc = V4L2_PIX_FMT_YUYV,
 165                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 166 #endif
 167                 .depth = 16,
 168                 .flags = ZORAN_FORMAT_CAPTURE |
 169                          ZORAN_FORMAT_OVERLAY,
 170         }, {
 171                 .name = "Hardware-encoded Motion-JPEG",
 172                 .palette = -1,
 173 #ifdef HAVE_V4L2
 174                 .fourcc = V4L2_PIX_FMT_MJPEG,
 175                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 176 #endif
 177                 .depth = 0,
 178                 .flags = ZORAN_FORMAT_CAPTURE |
 179                          ZORAN_FORMAT_PLAYBACK |
 180                          ZORAN_FORMAT_COMPRESSED,
 181         }
 182 };
 183 static const int zoran_num_formats =
 184     (sizeof(zoran_formats) / sizeof(struct zoran_format));
 185
 186 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
 187 #if !defined(CONFIG_BIGPHYS_AREA)
 188 //#undef CONFIG_BIGPHYS_AREA
 189 #define BUZ_USE_HIMEM
 190 #endif
 191
 192 #if defined(CONFIG_BIGPHYS_AREA)
 193 #   include <linux/bigphysarea.h>
 194 #endif
 195
 196 extern int *zr_debug;
 197
 198 #define dprintk(num, format, args...) \
 199         do { \
 200                 if (*zr_debug >= num) \
 201                         printk(format, ##args); \
 202         } while (0)
 203
 204 extern int v4l_nbufs;
 205 extern int v4l_bufsize;
 206 extern int jpg_nbufs;
 207 extern int jpg_bufsize;
 208 extern int pass_through;
 209
 210 static int lock_norm = 0;       /* 1=Don't change TV standard (norm) */
 211 module_param(lock_norm, int, 0);
 212 MODULE_PARM_DESC(lock_norm, "Users can't change norm");
 213
 214 #ifdef HAVE_V4L2
 215         /* small helper function for calculating buffersizes for v4l2
 216          * we calculate the nearest higher power-of-two, which
 217          * will be the recommended buffersize */
 218 static __u32
 219 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 220 {
 221         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 222         __u32 num = (1024 * 512) / (div);
 223         __u32 result = 2;
 224
 225         num--;
 226         while (num) {
 227                 num >>= 1;
 228                 result <<= 1;
 229         }
 230
 231         if (result > jpg_bufsize)
 232                 return jpg_bufsize;
 233         if (result < 8192)
 234                 return 8192;
 235         return result;
 236 }
 237 #endif
 238
 239 /* forward references */
 240 static void v4l_fbuffer_free(struct file *file);
 241 static void jpg_fbuffer_free(struct file *file);
 242
 243 /*
 244  *   Allocate the V4L grab buffers
 245  *
 246  *   These have to be pysically contiguous.
 247  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 248  *   else we try to allocate them with bigphysarea_alloc_pages
 249  *   if the bigphysarea patch is present in the kernel,
 250  *   else we try to use high memory (if the user has bootet
 251  *   Linux with the necessary memory left over).
 252  */
 253
 254 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
 255 static unsigned long
 256 get_high_mem (unsigned long size)
 257 {
 258 /*
 259  * Check if there is usable memory at the end of Linux memory
 260  * of at least size. Return the physical address of this memory,
 261  * return 0 on failure.
 262  *
 263  * The idea is from Alexandro Rubini's book "Linux device drivers".
 264  * The driver from him which is downloadable from O'Reilly's
 265  * web site misses the "virt_to_phys(high_memory)" part
 266  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 267  *
 268  * It should be unnecessary to mention that THIS IS DANGEROUS,
 269  * if more than one driver at a time has the idea to use this memory!!!!
 270  */
 271
 272         volatile unsigned char __iomem *mem;
 273         unsigned char c;
 274         unsigned long hi_mem_ph;
 275         unsigned long i;
 276
 277         /* Map the high memory to user space */
 278
 279         hi_mem_ph = virt_to_phys(high_memory);
 280
 281         mem = ioremap(hi_mem_ph, size);
 282         if (!mem) {
 283                 dprintk(1,
 284                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 285                         ZORAN_NAME);
 286                 return 0;
 287         }
 288
 289         for (i = 0; i < size; i++) {
 290                 /* Check if it is memory */
 291                 c = i & 0xff;
 292                 writeb(c, mem + i);
 293                 if (readb(mem + i) != c)
 294                         break;
 295                 c = 255 - c;
 296                 writeb(c, mem + i);
 297                 if (readb(mem + i) != c)
 298                         break;
 299                 writeb(0, mem + i);     /* zero out memory */
 300
 301                 /* give the kernel air to breath */
 302                 if ((i & 0x3ffff) == 0x3ffff)
 303                         schedule();
 304         }
 305
 306         iounmap(mem);
 307
 308         if (i != size) {
 309                 dprintk(1,
 310                         KERN_ERR
 311                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 312                         ZORAN_NAME, size, i);
 313                 return 0;
 314         }
 315
 316         return hi_mem_ph;
 317 }
 318 #endif
 319
 320 static int
 321 v4l_fbuffer_alloc (struct file *file)
 322 {
 323         struct zoran_fh *fh = file->private_data;
 324         struct zoran *zr = fh->zr;
 325         int i, off;
 326         unsigned char *mem;
 327 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
 328         unsigned long pmem = 0;
 329 #endif
 330
 331         /* we might have old buffers lying around... */
 332         if (fh->v4l_buffers.ready_to_be_freed) {
 333                 v4l_fbuffer_free(file);
 334         }
 335
 336         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 337                 if (fh->v4l_buffers.buffer[i].fbuffer)
 338                         dprintk(2,
 339                                 KERN_WARNING
 340                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 341                                 ZR_DEVNAME(zr), i);
 342
 343                 //udelay(20);
 344                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 345                         /* Use kmalloc */
 346
 347                         mem =
 348                             (unsigned char *) kmalloc(fh->v4l_buffers.
 349                                                       buffer_size,
 350                                                       GFP_KERNEL);
 351                         if (mem == 0) {
 352                                 dprintk(1,
 353                                         KERN_ERR
 354                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 355                                         ZR_DEVNAME(zr), i);
 356                                 v4l_fbuffer_free(file);
 357                                 return -ENOBUFS;
 358                         }
 359                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 360                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 361                             virt_to_phys(mem);
 362                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 363                             virt_to_bus(mem);
 364                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 365                              off += PAGE_SIZE)
 366                                 SetPageReserved(MAP_NR(mem + off));
 367                         dprintk(4,
 368                                 KERN_INFO
 369                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 370                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 371                                 virt_to_bus(mem));
 372                 } else {
 373 #if defined(CONFIG_BIGPHYS_AREA)
 374                         /* Use bigphysarea_alloc_pages */
 375
 376                         int n =
 377                             (fh->v4l_buffers.buffer_size + PAGE_SIZE -
 378                              1) / PAGE_SIZE;
 379
 380                         mem =
 381                             (unsigned char *) bigphysarea_alloc_pages(n, 0,
 382                                                                       GFP_KERNEL);
 383                         if (mem == 0) {
 384                                 dprintk(1,
 385                                         KERN_ERR
 386                                         "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
 387                                         ZR_DEVNAME(zr), i);
 388                                 v4l_fbuffer_free(file);
 389                                 return -ENOBUFS;
 390                         }
 391                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 392                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 393                             virt_to_phys(mem);
 394                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 395                             virt_to_bus(mem);
 396                         dprintk(4,
 397                                 KERN_INFO
 398                                 "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
 399                                 ZR_DEVNAME(zr), i, (unsigned) mem,
 400                                 (unsigned) virt_to_bus(mem));
 401
 402                         /* Zero out the allocated memory */
 403                         memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
 404                                fh->v4l_buffers.buffer_size);
 405 #elif defined(BUZ_USE_HIMEM)
 406
 407                         /* Use high memory which has been left at boot time */
 408
 409                         /* Ok., Ok. this is an evil hack - we make
 410                          * the assumption that physical addresses are
 411                          * the same as bus addresses (true at least
 412                          * for Intel processors). The whole method of
 413                          * obtaining and using this memory is not very
 414                          * nice - but I hope it saves some poor users
 415                          * from kernel hacking, which might have even
 416                          * more evil results */
 417
 418                         if (i == 0) {
 419                                 int size =
 420                                     fh->v4l_buffers.num_buffers *
 421                                     fh->v4l_buffers.buffer_size;
 422
 423                                 pmem = get_high_mem(size);
 424                                 if (pmem == 0) {
 425                                         dprintk(1,
 426                                                 KERN_ERR
 427                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 428                                                 ZR_DEVNAME(zr), size >> 10);
 429                                         return -ENOBUFS;
 430                                 }
 431                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 432                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 433                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 434                                 dprintk(4,
 435                                         KERN_INFO
 436                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 437                                         ZR_DEVNAME(zr), size >> 10);
 438                         } else {
 439                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 440                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 441                                     pmem + i * fh->v4l_buffers.buffer_size;
 442                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 443                                     pmem + i * fh->v4l_buffers.buffer_size;
 444                         }
 445 #else
 446                         /* No bigphysarea present, usage of high memory disabled,
 447                          * but user wants buffers of more than MAX_KMALLOC_MEM */
 448                         dprintk(1,
 449                                 KERN_ERR
 450                                 "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
 451                                 ZR_DEVNAME(zr));
 452                         dprintk(1,
 453                                 KERN_ERR
 454                                 "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
 455                                 ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
 456                                 fh->v4l_buffers.buffer_size >> 10);
 457                         return -ENOBUFS;
 458 #endif
 459                 }
 460         }
 461
 462         fh->v4l_buffers.allocated = 1;
 463
 464         return 0;
 465 }
 466
 467 /* free the V4L grab buffers */
 468 static void
 469 v4l_fbuffer_free (struct file *file)
 470 {
 471         struct zoran_fh *fh = file->private_data;
 472         struct zoran *zr = fh->zr;
 473         int i, off;
 474         unsigned char *mem;
 475
 476         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 477
 478         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 479                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 480                         continue;
 481
 482                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 483                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 484                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 485                              off += PAGE_SIZE)
 486                                 ClearPageReserved(MAP_NR(mem + off));
 487                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 488                 }
 489 #if defined(CONFIG_BIGPHYS_AREA)
 490                 else
 491                         bigphysarea_free_pages((void *) fh->v4l_buffers.
 492                                                buffer[i].fbuffer);
 493 #endif
 494                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 495         }
 496
 497         fh->v4l_buffers.allocated = 0;
 498         fh->v4l_buffers.ready_to_be_freed = 0;
 499 }
 500
 501 /*
 502  *   Allocate the MJPEG grab buffers.
 503  *
 504  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 505  *   kmalloc is used to request a physically contiguous area,
 506  *   else we allocate the memory in framgents with get_zeroed_page.
 507  *
 508  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 509  *   each MJPEG buffer needs to be physically contiguous.
 510  *   (RJ: This statement is from Dave Perks' original driver,
 511  *   I could never check it because I have a zr36067)
 512  *   The driver cares about this because it reduces the buffer
 513  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 514  *
 515  *   RJ: The contents grab buffers needs never be accessed in the driver.
 516  *       Therefore there is no need to allocate them with vmalloc in order
 517  *       to get a contiguous virtual memory space.
 518  *       I don't understand why many other drivers first allocate them with
 519  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 520  *       virtual addresses) and then again have to make a lot of efforts
 521  *       to get the physical address.
 522  *
 523  *   Ben Capper:
 524  *       On big-endian architectures (such as ppc) some extra steps
 525  *       are needed. When reading and writing to the stat_com array
 526  *       and fragment buffers, the device expects to see little-
 527  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 528  *       in this function (and one or two others in zoran_device.c)
 529  *       ensure that these values are always stored in little-endian
 530  *       form, regardless of architecture. The zr36057 does Very Bad
 531  *       Things on big endian architectures if the stat_com array
 532  *       and fragment buffers are not little-endian.
 533  */
 534
 535 static int
 536 jpg_fbuffer_alloc (struct file *file)
 537 {
 538         struct zoran_fh *fh = file->private_data;
 539         struct zoran *zr = fh->zr;
 540         int i, j, off;
 541         unsigned long mem;
 542
 543         /* we might have old buffers lying around */
 544         if (fh->jpg_buffers.ready_to_be_freed) {
 545                 jpg_fbuffer_free(file);
 546         }
 547
 548         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 549                 if (fh->jpg_buffers.buffer[i].frag_tab)
 550                         dprintk(2,
 551                                 KERN_WARNING
 552                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 553                                 ZR_DEVNAME(zr), i);
 554
 555                 /* Allocate fragment table for this buffer */
 556
 557                 mem = get_zeroed_page(GFP_KERNEL);
 558                 if (mem == 0) {
 559                         dprintk(1,
 560                                 KERN_ERR
 561                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 562                                 ZR_DEVNAME(zr), i);
 563                         jpg_fbuffer_free(file);
 564                         return -ENOBUFS;
 565                 }
 566                 memset((void *) mem, 0, PAGE_SIZE);
 567                 fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
 568                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 569                     virt_to_bus((void *) mem);
 570
 571                 //if (alloc_contig) {
 572                 if (fh->jpg_buffers.need_contiguous) {
 573                         mem =
 574                             (unsigned long) kmalloc(fh->jpg_buffers.
 575                                                     buffer_size,
 576                                                     GFP_KERNEL);
 577                         if (mem == 0) {
 578                                 dprintk(1,
 579                                         KERN_ERR
 580                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 581                                         ZR_DEVNAME(zr), i);
 582                                 jpg_fbuffer_free(file);
 583                                 return -ENOBUFS;
 584                         }
 585                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 586                             cpu_to_le32(virt_to_bus((void *) mem));
 587                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 588                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 589                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 590                              off += PAGE_SIZE)
 591                                 SetPageReserved(MAP_NR(mem + off));
 592                 } else {
 593                         /* jpg_bufsize is allreay page aligned */
 594                         for (j = 0;
 595                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 596                              j++) {
 597                                 mem = get_zeroed_page(GFP_KERNEL);
 598                                 if (mem == 0) {
 599                                         dprintk(1,
 600                                                 KERN_ERR
 601                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 602                                                 ZR_DEVNAME(zr), i);
 603                                         jpg_fbuffer_free(file);
 604                                         return -ENOBUFS;
 605                                 }
 606
 607                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 608                                     cpu_to_le32(virt_to_bus((void *) mem));
 609                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 610                                                                    1] =
 611                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 612                                 SetPageReserved(MAP_NR(mem));
 613                         }
 614
 615                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 616                 }
 617         }
 618
 619         dprintk(4,
 620                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 621                 ZR_DEVNAME(zr),
 622                 (fh->jpg_buffers.num_buffers *
 623                  fh->jpg_buffers.buffer_size) >> 10);
 624
 625         fh->jpg_buffers.allocated = 1;
 626
 627         return 0;
 628 }
 629
 630 /* free the MJPEG grab buffers */
 631 static void
 632 jpg_fbuffer_free (struct file *file)
 633 {
 634         struct zoran_fh *fh = file->private_data;
 635         struct zoran *zr = fh->zr;
 636         int i, j, off;
 637         unsigned char *mem;
 638
 639         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 640
 641         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 642                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 643                         continue;
 644
 645                 //if (alloc_contig) {
 646                 if (fh->jpg_buffers.need_contiguous) {
 647                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 648                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 649                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 650                                 for (off = 0;
 651                                      off < fh->jpg_buffers.buffer_size;
 652                                      off += PAGE_SIZE)
 653                                         ClearPageReserved(MAP_NR
 654                                                           (mem + off));
 655                                 kfree(mem);
 656                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 657                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 658                         }
 659                 } else {
 660                         for (j = 0;
 661                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 662                              j++) {
 663                                 if (!fh->jpg_buffers.buffer[i].
 664                                     frag_tab[2 * j])
 665                                         break;
 666                                 ClearPageReserved(MAP_NR
 667                                                   (bus_to_virt
 668                                                    (le32_to_cpu
 669                                                     (fh->jpg_buffers.
 670                                                      buffer[i].frag_tab[2 *
 671                                                                        j]))));
 672                                 free_page((unsigned long)
 673                                           bus_to_virt
 674                                                   (le32_to_cpu
 675                                                    (fh->jpg_buffers.
 676                                                       buffer[i].
 677                                                       frag_tab[2 * j])));
 678                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 679                                     0;
 680                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 681                                                                    1] = 0;
 682                         }
 683                 }
 684
 685                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 686                           frag_tab);
 687                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 688         }
 689
 690         fh->jpg_buffers.allocated = 0;
 691         fh->jpg_buffers.ready_to_be_freed = 0;
 692 }
 693
 694 /*
 695  *   V4L Buffer grabbing
 696  */
 697
 698 static int
 699 zoran_v4l_set_format (struct file               *file,
 700                       int                        width,
 701                       int                        height,
 702                       const struct zoran_format *format)
 703 {
 704         struct zoran_fh *fh = file->private_data;
 705         struct zoran *zr = fh->zr;
 706         int bpp;
 707
 708         /* Check size and format of the grab wanted */
 709
 710         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 711             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 712                 dprintk(1,
 713                         KERN_ERR
 714                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 715                         ZR_DEVNAME(zr), width, height);
 716                 return -EINVAL;
 717         }
 718
 719         bpp = (format->depth + 7) / 8;
 720
 721         /* Check against available buffer size */
 722         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 723                 dprintk(1,
 724                         KERN_ERR
 725                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 726                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 727                 return -EINVAL;
 728         }
 729
 730         /* The video front end needs 4-byte alinged line sizes */
 731
 732         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 733                 dprintk(1,
 734                         KERN_ERR
 735                         "%s: v4l_set_format() - wrong frame alingment\n",
 736                         ZR_DEVNAME(zr));
 737                 return -EINVAL;
 738         }
 739
 740         fh->v4l_settings.width = width;
 741         fh->v4l_settings.height = height;
 742         fh->v4l_settings.format = format;
 743         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 744
 745         return 0;
 746 }
 747
 748 static int
 749 zoran_v4l_queue_frame (struct file *file,
 750                        int          num)
 751 {
 752         struct zoran_fh *fh = file->private_data;
 753         struct zoran *zr = fh->zr;
 754         unsigned long flags;
 755         int res = 0;
 756
 757         if (!fh->v4l_buffers.allocated) {
 758                 dprintk(1,
 759                         KERN_ERR
 760                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 761                         ZR_DEVNAME(zr));
 762                 res = -ENOMEM;
 763         }
 764
 765         /* No grabbing outside the buffer range! */
 766         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 767                 dprintk(1,
 768                         KERN_ERR
 769                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 770                         ZR_DEVNAME(zr), num);
 771                 res = -EINVAL;
 772         }
 773
 774         spin_lock_irqsave(&zr->spinlock, flags);
 775
 776         if (fh->v4l_buffers.active == ZORAN_FREE) {
 777                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 778                         zr->v4l_buffers = fh->v4l_buffers;
 779                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 780                 } else {
 781                         dprintk(1,
 782                                 KERN_ERR
 783                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 784                                 ZR_DEVNAME(zr));
 785                         res = -EBUSY;
 786                 }
 787         }
 788
 789         /* make sure a grab isn't going on currently with this buffer */
 790         if (!res) {
 791                 switch (zr->v4l_buffers.buffer[num].state) {
 792                 default:
 793                 case BUZ_STATE_PEND:
 794                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 795                                 fh->v4l_buffers.active = ZORAN_FREE;
 796                                 zr->v4l_buffers.allocated = 0;
 797                         }
 798                         res = -EBUSY;   /* what are you doing? */
 799                         break;
 800                 case BUZ_STATE_DONE:
 801                         dprintk(2,
 802                                 KERN_WARNING
 803                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 804                                 ZR_DEVNAME(zr), num);
 805                 case BUZ_STATE_USER:
 806                         /* since there is at least one unused buffer there's room for at least
 807                          * one more pend[] entry */
 808                         zr->v4l_pend[zr->v4l_pend_head++ &
 809                                         V4L_MASK_FRAME] = num;
 810                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 811                         zr->v4l_buffers.buffer[num].bs.length =
 812                             fh->v4l_settings.bytesperline *
 813                             zr->v4l_settings.height;
 814                         fh->v4l_buffers.buffer[num] =
 815                             zr->v4l_buffers.buffer[num];
 816                         break;
 817                 }
 818         }
 819
 820         spin_unlock_irqrestore(&zr->spinlock, flags);
 821
 822         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 823                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 824
 825         return res;
 826 }
 827
 828 static int
 829 v4l_grab (struct file       *file,
 830           struct video_mmap *mp)
 831 {
 832         struct zoran_fh *fh = file->private_data;
 833         struct zoran *zr = fh->zr;
 834         int res = 0, i;
 835
 836         for (i = 0; i < zoran_num_formats; i++) {
 837                 if (zoran_formats[i].palette == mp->format &&
 838                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 839                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 840                         break;
 841         }
 842         if (i == zoran_num_formats || zoran_formats[i].depth == 0) {
 843                 dprintk(1,
 844                         KERN_ERR
 845                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 846                         ZR_DEVNAME(zr));
 847                 return -EINVAL;
 848         }
 849
 850         /*
 851          * To minimize the time spent in the IRQ routine, we avoid setting up
 852          * the video front end there.
 853          * If this grab has different parameters from a running streaming capture
 854          * we stop the streaming capture and start it over again.
 855          */
 856         if (zr->v4l_memgrab_active &&
 857             (zr->v4l_settings.width != mp->width ||
 858              zr->v4l_settings.height != mp->height ||
 859              zr->v4l_settings.format->palette != mp->format)) {
 860                 res = wait_grab_pending(zr);
 861                 if (res)
 862                         return res;
 863         }
 864         if ((res = zoran_v4l_set_format(file,
 865                                         mp->width,
 866                                         mp->height,
 867                                         &zoran_formats[i])))
 868                 return res;
 869         zr->v4l_settings = fh->v4l_settings;
 870
 871         /* queue the frame in the pending queue */
 872         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 873                 fh->v4l_buffers.active = ZORAN_FREE;
 874                 return res;
 875         }
 876
 877         /* put the 36057 into frame grabbing mode */
 878         if (!res && !zr->v4l_memgrab_active)
 879                 zr36057_set_memgrab(zr, 1);
 880
 881         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 882
 883         return res;
 884 }
 885
 886 /*
 887  * Sync on a V4L buffer
 888  */
 889
 890 static int
 891 v4l_sync (struct file *file,
 892           int          frame)
 893 {
 894         struct zoran_fh *fh = file->private_data;
 895         struct zoran *zr = fh->zr;
 896         unsigned long flags;
 897
 898         if (fh->v4l_buffers.active == ZORAN_FREE) {
 899                 dprintk(1,
 900                         KERN_ERR
 901                         "%s: v4l_sync() - no grab active for this session\n",
 902                         ZR_DEVNAME(zr));
 903                 return -EINVAL;
 904         }
 905
 906         /* check passed-in frame number */
 907         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 908                 dprintk(1,
 909                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 910                         ZR_DEVNAME(zr), frame);
 911                 return -EINVAL;
 912         }
 913
 914         /* Check if is buffer was queued at all */
 915         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 916                 dprintk(1,
 917                         KERN_ERR
 918                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 919                         ZR_DEVNAME(zr));
 920                 return -EPROTO;
 921         }
 922
 923         /* wait on this buffer to get ready */
 924         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 925                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 926                                 10*HZ))
 927                 return -ETIME;
 928         if (signal_pending(current))
 929                 return -ERESTARTSYS;
 930
 931         /* buffer should now be in BUZ_STATE_DONE */
 932         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 933                 dprintk(2,
 934                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 935                         ZR_DEVNAME(zr));
 936
 937         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 938         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 939
 940         spin_lock_irqsave(&zr->spinlock, flags);
 941
 942         /* Check if streaming capture has finished */
 943         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 944                 zr36057_set_memgrab(zr, 0);
 945                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 946                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 947                             ZORAN_FREE;
 948                         zr->v4l_buffers.allocated = 0;
 949                 }
 950         }
 951
 952         spin_unlock_irqrestore(&zr->spinlock, flags);
 953
 954         return 0;
 955 }
 956
 957 /*
 958  *   Queue a MJPEG buffer for capture/playback
 959  */
 960
 961 static int
 962 zoran_jpg_queue_frame (struct file          *file,
 963                        int                   num,
 964                        enum zoran_codec_mode mode)
 965 {
 966         struct zoran_fh *fh = file->private_data;
 967         struct zoran *zr = fh->zr;
 968         unsigned long flags;
 969         int res = 0;
 970
 971         /* Check if buffers are allocated */
 972         if (!fh->jpg_buffers.allocated) {
 973                 dprintk(1,
 974                         KERN_ERR
 975                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 976                         ZR_DEVNAME(zr));
 977                 return -ENOMEM;
 978         }
 979
 980         /* No grabbing outside the buffer range! */
 981         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 982                 dprintk(1,
 983                         KERN_ERR
 984                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 985                         ZR_DEVNAME(zr), num);
 986                 return -EINVAL;
 987         }
 988
 989         /* what is the codec mode right now? */
 990         if (zr->codec_mode == BUZ_MODE_IDLE) {
 991                 zr->jpg_settings = fh->jpg_settings;
 992         } else if (zr->codec_mode != mode) {
 993                 /* wrong codec mode active - invalid */
 994                 dprintk(1,
 995                         KERN_ERR
 996                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 997                         ZR_DEVNAME(zr));
 998                 return -EINVAL;
 999         }
1000
1001         if (fh->jpg_buffers.active == ZORAN_FREE) {
1002                 if (zr->jpg_buffers.active == ZORAN_FREE) {
1003                         zr->jpg_buffers = fh->jpg_buffers;
1004                         fh->jpg_buffers.active = ZORAN_ACTIVE;
1005                 } else {
1006                         dprintk(1,
1007                                 KERN_ERR
1008                                 "%s: jpg_queue_frame() - another session is already capturing\n",
1009                                 ZR_DEVNAME(zr));
1010                         res = -EBUSY;
1011                 }
1012         }
1013
1014         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
1015                 /* Ok load up the jpeg codec */
1016                 zr36057_enable_jpg(zr, mode);
1017         }
1018
1019         spin_lock_irqsave(&zr->spinlock, flags);
1020
1021         if (!res) {
1022                 switch (zr->jpg_buffers.buffer[num].state) {
1023                 case BUZ_STATE_DONE:
1024                         dprintk(2,
1025                                 KERN_WARNING
1026                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
1027                                 ZR_DEVNAME(zr));
1028                 case BUZ_STATE_USER:
1029                         /* since there is at least one unused buffer there's room for at
1030                          *least one more pend[] entry */
1031                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
1032                             num;
1033                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
1034                         fh->jpg_buffers.buffer[num] =
1035                             zr->jpg_buffers.buffer[num];
1036                         zoran_feed_stat_com(zr);
1037                         break;
1038                 default:
1039                 case BUZ_STATE_DMA:
1040                 case BUZ_STATE_PEND:
1041                         if (zr->jpg_buffers.active == ZORAN_FREE) {
1042                                 fh->jpg_buffers.active = ZORAN_FREE;
1043                                 zr->jpg_buffers.allocated = 0;
1044                         }
1045                         res = -EBUSY;   /* what are you doing? */
1046                         break;
1047                 }
1048         }
1049
1050         spin_unlock_irqrestore(&zr->spinlock, flags);
1051
1052         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
1053                 zr->jpg_buffers.active = fh->jpg_buffers.active;
1054         }
1055
1056         return res;
1057 }
1058
1059 static int
1060 jpg_qbuf (struct file          *file,
1061           int                   frame,
1062           enum zoran_codec_mode mode)
1063 {
1064         struct zoran_fh *fh = file->private_data;
1065         struct zoran *zr = fh->zr;
1066         int res = 0;
1067
1068         /* Does the user want to stop streaming? */
1069         if (frame < 0) {
1070                 if (zr->codec_mode == mode) {
1071                         if (fh->jpg_buffers.active == ZORAN_FREE) {
1072                                 dprintk(1,
1073                                         KERN_ERR
1074                                         "%s: jpg_qbuf(-1) - session not active\n",
1075                                         ZR_DEVNAME(zr));
1076                                 return -EINVAL;
1077                         }
1078                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1079                             ZORAN_FREE;
1080                         zr->jpg_buffers.allocated = 0;
1081                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1082                         return 0;
1083                 } else {
1084                         dprintk(1,
1085                                 KERN_ERR
1086                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1087                                 ZR_DEVNAME(zr));
1088                         return -EINVAL;
1089                 }
1090         }
1091
1092         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1093                 return res;
1094
1095         /* Start the jpeg codec when the first frame is queued  */
1096         if (!res && zr->jpg_que_head == 1)
1097                 jpeg_start(zr);
1098
1099         return res;
1100 }
1101
1102 /*
1103  *   Sync on a MJPEG buffer
1104  */
1105
1106 static int
1107 jpg_sync (struct file       *file,
1108           struct zoran_sync *bs)
1109 {
1110         struct zoran_fh *fh = file->private_data;
1111         struct zoran *zr = fh->zr;
1112         unsigned long flags;
1113         int frame;
1114
1115         if (fh->jpg_buffers.active == ZORAN_FREE) {
1116                 dprintk(1,
1117                         KERN_ERR
1118                         "%s: jpg_sync() - capture is not currently active\n",
1119                         ZR_DEVNAME(zr));
1120                 return -EINVAL;
1121         }
1122         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1123             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1124                 dprintk(1,
1125                         KERN_ERR
1126                         "%s: jpg_sync() - codec not in streaming mode\n",
1127                         ZR_DEVNAME(zr));
1128                 return -EINVAL;
1129         }
1130         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1131                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1132                          zr->jpg_dma_tail == zr->jpg_dma_head),
1133                         10*HZ)) {
1134                 int isr;
1135
1136                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1137                 udelay(1);
1138                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1139                                            sizeof(isr), &isr);
1140                 dprintk(1,
1141                         KERN_ERR
1142                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1143                         ZR_DEVNAME(zr), isr);
1144
1145                 return -ETIME;
1146
1147         }
1148         if (signal_pending(current))
1149                 return -ERESTARTSYS;
1150
1151         spin_lock_irqsave(&zr->spinlock, flags);
1152
1153         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1154                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1155         else
1156                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1157
1158         /* buffer should now be in BUZ_STATE_DONE */
1159         if (*zr_debug > 0)
1160                 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1161                         dprintk(2,
1162                                 KERN_ERR
1163                                 "%s: jpg_sync() - internal state error\n",
1164                                 ZR_DEVNAME(zr));
1165
1166         *bs = zr->jpg_buffers.buffer[frame].bs;
1167         bs->frame = frame;
1168         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1169         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1170
1171         spin_unlock_irqrestore(&zr->spinlock, flags);
1172
1173         return 0;
1174 }
1175
1176 static void
1177 zoran_open_init_session (struct file *file)
1178 {
1179         int i;
1180         struct zoran_fh *fh = file->private_data;
1181         struct zoran *zr = fh->zr;
1182
1183         /* Per default, map the V4L Buffers */
1184         fh->map_mode = ZORAN_MAP_MODE_RAW;
1185
1186         /* take over the card's current settings */
1187         fh->overlay_settings = zr->overlay_settings;
1188         fh->overlay_settings.is_set = 0;
1189         fh->overlay_settings.format = zr->overlay_settings.format;
1190         fh->overlay_active = ZORAN_FREE;
1191
1192         /* v4l settings */
1193         fh->v4l_settings = zr->v4l_settings;
1194
1195         /* v4l_buffers */
1196         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1197         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1198                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1199                 fh->v4l_buffers.buffer[i].bs.frame = i;
1200         }
1201         fh->v4l_buffers.allocated = 0;
1202         fh->v4l_buffers.ready_to_be_freed = 0;
1203         fh->v4l_buffers.active = ZORAN_FREE;
1204         fh->v4l_buffers.buffer_size = v4l_bufsize;
1205         fh->v4l_buffers.num_buffers = v4l_nbufs;
1206
1207         /* jpg settings */
1208         fh->jpg_settings = zr->jpg_settings;
1209
1210         /* jpg_buffers */
1211         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1212         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1213                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1214                 fh->jpg_buffers.buffer[i].bs.frame = i;
1215         }
1216         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1217         fh->jpg_buffers.allocated = 0;
1218         fh->jpg_buffers.ready_to_be_freed = 0;
1219         fh->jpg_buffers.active = ZORAN_FREE;
1220         fh->jpg_buffers.buffer_size = jpg_bufsize;
1221         fh->jpg_buffers.num_buffers = jpg_nbufs;
1222 }
1223
1224 static void
1225 zoran_close_end_session (struct file *file)
1226 {
1227         struct zoran_fh *fh = file->private_data;
1228         struct zoran *zr = fh->zr;
1229
1230         /* overlay */
1231         if (fh->overlay_active != ZORAN_FREE) {
1232                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1233                 zr->v4l_overlay_active = 0;
1234                 if (!zr->v4l_memgrab_active)
1235                         zr36057_overlay(zr, 0);
1236                 zr->overlay_mask = NULL;
1237         }
1238
1239         /* v4l capture */
1240         if (fh->v4l_buffers.active != ZORAN_FREE) {
1241                 zr36057_set_memgrab(zr, 0);
1242                 zr->v4l_buffers.allocated = 0;
1243                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1244                     ZORAN_FREE;
1245         }
1246
1247         /* v4l buffers */
1248         if (fh->v4l_buffers.allocated ||
1249             fh->v4l_buffers.ready_to_be_freed) {
1250                 v4l_fbuffer_free(file);
1251         }
1252
1253         /* jpg capture */
1254         if (fh->jpg_buffers.active != ZORAN_FREE) {
1255                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1256                 zr->jpg_buffers.allocated = 0;
1257                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1258                     ZORAN_FREE;
1259         }
1260
1261         /* jpg buffers */
1262         if (fh->jpg_buffers.allocated ||
1263             fh->jpg_buffers.ready_to_be_freed) {
1264                 jpg_fbuffer_free(file);
1265         }
1266 }
1267
1268 /*
1269  *   Open a zoran card. Right now the flags stuff is just playing
1270  */
1271
1272 static int
1273 zoran_open (struct inode *inode,
1274             struct file  *file)
1275 {
1276         unsigned int minor = iminor(inode);
1277         struct zoran *zr = NULL;
1278         struct zoran_fh *fh;
1279         int i, res, first_open = 0, have_module_locks = 0;
1280
1281         /* find the device */
1282         for (i = 0; i < zoran_num; i++) {
1283                 if (zoran[i].video_dev->minor == minor) {
1284                         zr = &zoran[i];
1285                         break;
1286                 }
1287         }
1288
1289         if (!zr) {
1290                 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1291                 res = -ENODEV;
1292                 goto open_unlock_and_return;
1293         }
1294
1295         /* see fs/device.c - the kernel already locks during open(),
1296          * so locking ourselves only causes deadlocks */
1297         /*mutex_lock(&zr->resource_lock);*/
1298
1299         if (!zr->decoder) {
1300                 dprintk(1,
1301                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1302                         ZR_DEVNAME(zr));
1303                 res = -EIO;
1304                 goto open_unlock_and_return;
1305         }
1306
1307         /* try to grab a module lock */
1308         if (!try_module_get(THIS_MODULE)) {
1309                 dprintk(1,
1310                         KERN_ERR
1311                         "%s: failed to acquire my own lock! PANIC!\n",
1312                         ZR_DEVNAME(zr));
1313                 res = -ENODEV;
1314                 goto open_unlock_and_return;
1315         }
1316         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1317                 dprintk(1,
1318                         KERN_ERR
1319                         "%s: failed to grab ownership of i2c decoder\n",
1320                         ZR_DEVNAME(zr));
1321                 res = -EIO;
1322                 module_put(THIS_MODULE);
1323                 goto open_unlock_and_return;
1324         }
1325         if (zr->encoder &&
1326             !try_module_get(zr->encoder->driver->driver.owner)) {
1327                 dprintk(1,
1328                         KERN_ERR
1329                         "%s: failed to grab ownership of i2c encoder\n",
1330                         ZR_DEVNAME(zr));
1331                 res = -EIO;
1332                 module_put(zr->decoder->driver->driver.owner);
1333                 module_put(THIS_MODULE);
1334                 goto open_unlock_and_return;
1335         }
1336
1337         have_module_locks = 1;
1338
1339         if (zr->user >= 2048) {
1340                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1341                         ZR_DEVNAME(zr), zr->user);
1342                 res = -EBUSY;
1343                 goto open_unlock_and_return;
1344         }
1345
1346         dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1347                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1348
1349         /* now, create the open()-specific file_ops struct */
1350         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1351         if (!fh) {
1352                 dprintk(1,
1353                         KERN_ERR
1354                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1355                         ZR_DEVNAME(zr));
1356                 res = -ENOMEM;
1357                 goto open_unlock_and_return;
1358         }
1359         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1360          * on norm-change! */
1361         fh->overlay_mask =
1362             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1363         if (!fh->overlay_mask) {
1364                 dprintk(1,
1365                         KERN_ERR
1366                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1367                         ZR_DEVNAME(zr));
1368                 kfree(fh);
1369                 res = -ENOMEM;
1370                 goto open_unlock_and_return;
1371         }
1372
1373         if (zr->user++ == 0)
1374                 first_open = 1;
1375
1376         /*mutex_unlock(&zr->resource_lock);*/
1377
1378         /* default setup - TODO: look at flags */
1379         if (first_open) {       /* First device open */
1380                 zr36057_restart(zr);
1381                 zoran_open_init_params(zr);
1382                 zoran_init_hardware(zr);
1383
1384                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1385         }
1386
1387         /* set file_ops stuff */
1388         file->private_data = fh;
1389         fh->zr = zr;
1390         zoran_open_init_session(file);
1391
1392         return 0;
1393
1394 open_unlock_and_return:
1395         /* if we grabbed locks, release them accordingly */
1396         if (have_module_locks) {
1397                 module_put(zr->decoder->driver->driver.owner);
1398                 if (zr->encoder) {
1399                         module_put(zr->encoder->driver->driver.owner);
1400                 }
1401                 module_put(THIS_MODULE);
1402         }
1403
1404         /* if there's no device found, we didn't obtain the lock either */
1405         if (zr) {
1406                 /*mutex_unlock(&zr->resource_lock);*/
1407         }
1408
1409         return res;
1410 }
1411
1412 static int
1413 zoran_close (struct inode *inode,
1414              struct file  *file)
1415 {
1416         struct zoran_fh *fh = file->private_data;
1417         struct zoran *zr = fh->zr;
1418
1419         dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1420                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1421
1422         /* kernel locks (fs/device.c), so don't do that ourselves
1423          * (prevents deadlocks) */
1424         /*mutex_lock(&zr->resource_lock);*/
1425
1426         zoran_close_end_session(file);
1427
1428         if (zr->user-- == 1) {  /* Last process */
1429                 /* Clean up JPEG process */
1430                 wake_up_interruptible(&zr->jpg_capq);
1431                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1432                 zr->jpg_buffers.allocated = 0;
1433                 zr->jpg_buffers.active = ZORAN_FREE;
1434
1435                 /* disable interrupts */
1436                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1437
1438                 if (*zr_debug > 1)
1439                         print_interrupts(zr);
1440
1441                 /* Overlay off */
1442                 zr->v4l_overlay_active = 0;
1443                 zr36057_overlay(zr, 0);
1444                 zr->overlay_mask = NULL;
1445
1446                 /* capture off */
1447                 wake_up_interruptible(&zr->v4l_capq);
1448                 zr36057_set_memgrab(zr, 0);
1449                 zr->v4l_buffers.allocated = 0;
1450                 zr->v4l_buffers.active = ZORAN_FREE;
1451                 zoran_set_pci_master(zr, 0);
1452
1453                 if (!pass_through) {    /* Switch to color bar */
1454                         int zero = 0, two = 2;
1455                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1456                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1457                 }
1458         }
1459
1460         file->private_data = NULL;
1461         kfree(fh->overlay_mask);
1462         kfree(fh);
1463
1464         /* release locks on the i2c modules */
1465         module_put(zr->decoder->driver->driver.owner);
1466         if (zr->encoder) {
1467                  module_put(zr->encoder->driver->driver.owner);
1468         }
1469         module_put(THIS_MODULE);
1470
1471         /*mutex_unlock(&zr->resource_lock);*/
1472
1473         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1474
1475         return 0;
1476 }
1477
1478
1479 static ssize_t
1480 zoran_read (struct file *file,
1481             char        __user *data,
1482             size_t       count,
1483             loff_t      *ppos)
1484 {
1485         /* we simply don't support read() (yet)... */
1486
1487         return -EINVAL;
1488 }
1489
1490 static ssize_t
1491 zoran_write (struct file *file,
1492              const char  __user *data,
1493              size_t       count,
1494              loff_t      *ppos)
1495 {
1496         /* ...and the same goes for write() */
1497
1498         return -EINVAL;
1499 }
1500
1501 static int
1502 setup_fbuffer (struct file               *file,
1503                void                      *base,
1504                const struct zoran_format *fmt,
1505                int                        width,
1506                int                        height,
1507                int                        bytesperline)
1508 {
1509         struct zoran_fh *fh = file->private_data;
1510         struct zoran *zr = fh->zr;
1511
1512         /* (Ronald) v4l/v4l2 guidelines */
1513         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1514                 return -EPERM;
1515
1516         /* we need a bytesperline value, even if not given */
1517         if (!bytesperline)
1518                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1519
1520 #if 0
1521         if (zr->overlay_active) {
1522                 /* dzjee... stupid users... don't even bother to turn off
1523                  * overlay before changing the memory location...
1524                  * normally, we would return errors here. However, one of
1525                  * the tools that does this is... xawtv! and since xawtv
1526                  * is used by +/- 99% of the users, we'd rather be user-
1527                  * friendly and silently do as if nothing went wrong */
1528                 dprintk(3,
1529                         KERN_ERR
1530                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1531                         ZR_DEVNAME(zr));
1532                 zr36057_overlay(zr, 0);
1533         }
1534 #endif
1535
1536         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1537                 dprintk(1,
1538                         KERN_ERR
1539                         "%s: setup_fbuffer() - no valid overlay format given\n",
1540                         ZR_DEVNAME(zr));
1541                 return -EINVAL;
1542         }
1543         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1544                 dprintk(1,
1545                         KERN_ERR
1546                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1547                         ZR_DEVNAME(zr), width, height, bytesperline);
1548                 return -EINVAL;
1549         }
1550         if (bytesperline & 3) {
1551                 dprintk(1,
1552                         KERN_ERR
1553                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1554                         ZR_DEVNAME(zr), bytesperline);
1555                 return -EINVAL;
1556         }
1557
1558         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1559         zr->buffer.height = height;
1560         zr->buffer.width = width;
1561         zr->buffer.depth = fmt->depth;
1562         zr->overlay_settings.format = fmt;
1563         zr->buffer.bytesperline = bytesperline;
1564
1565         /* The user should set new window parameters */
1566         zr->overlay_settings.is_set = 0;
1567
1568         return 0;
1569 }
1570
1571
1572 static int
1573 setup_window (struct file       *file,
1574               int                x,
1575               int                y,
1576               int                width,
1577               int                height,
1578               struct video_clip __user *clips,
1579               int                clipcount,
1580               void              __user *bitmap)
1581 {
1582         struct zoran_fh *fh = file->private_data;
1583         struct zoran *zr = fh->zr;
1584         struct video_clip *vcp = NULL;
1585         int on, end;
1586
1587
1588         if (!zr->buffer.base) {
1589                 dprintk(1,
1590                         KERN_ERR
1591                         "%s: setup_window() - frame buffer has to be set first\n",
1592                         ZR_DEVNAME(zr));
1593                 return -EINVAL;
1594         }
1595
1596         if (!fh->overlay_settings.format) {
1597                 dprintk(1,
1598                         KERN_ERR
1599                         "%s: setup_window() - no overlay format set\n",
1600                         ZR_DEVNAME(zr));
1601                 return -EINVAL;
1602         }
1603
1604         /*
1605          * The video front end needs 4-byte alinged line sizes, we correct that
1606          * silently here if necessary
1607          */
1608         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1609                 end = (x + width) & ~1; /* round down */
1610                 x = (x + 1) & ~1;       /* round up */
1611                 width = end - x;
1612         }
1613
1614         if (zr->buffer.depth == 24) {
1615                 end = (x + width) & ~3; /* round down */
1616                 x = (x + 3) & ~3;       /* round up */
1617                 width = end - x;
1618         }
1619
1620         if (width > BUZ_MAX_WIDTH)
1621                 width = BUZ_MAX_WIDTH;
1622         if (height > BUZ_MAX_HEIGHT)
1623                 height = BUZ_MAX_HEIGHT;
1624
1625         /* Check for vaild parameters */
1626         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1627             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1628                 dprintk(1,
1629                         KERN_ERR
1630                         "%s: setup_window() - width = %d or height = %d invalid\n",
1631                         ZR_DEVNAME(zr), width, height);
1632                 return -EINVAL;
1633         }
1634
1635         fh->overlay_settings.x = x;
1636         fh->overlay_settings.y = y;
1637         fh->overlay_settings.width = width;
1638         fh->overlay_settings.height = height;
1639         fh->overlay_settings.clipcount = clipcount;
1640
1641         /*
1642          * If an overlay is running, we have to switch it off
1643          * and switch it on again in order to get the new settings in effect.
1644          *
1645          * We also want to avoid that the overlay mask is written
1646          * when an overlay is running.
1647          */
1648
1649         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1650             zr->overlay_active != ZORAN_FREE &&
1651             fh->overlay_active != ZORAN_FREE;
1652         if (on)
1653                 zr36057_overlay(zr, 0);
1654
1655         /*
1656          *   Write the overlay mask if clips are wanted.
1657          *   We prefer a bitmap.
1658          */
1659         if (bitmap) {
1660                 /* fake value - it just means we want clips */
1661                 fh->overlay_settings.clipcount = 1;
1662
1663                 if (copy_from_user(fh->overlay_mask, bitmap,
1664                                    (width * height + 7) / 8)) {
1665                         return -EFAULT;
1666                 }
1667         } else if (clipcount > 0) {
1668                 /* write our own bitmap from the clips */
1669                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1670                 if (vcp == NULL) {
1671                         dprintk(1,
1672                                 KERN_ERR
1673                                 "%s: setup_window() - Alloc of clip mask failed\n",
1674                                 ZR_DEVNAME(zr));
1675                         return -ENOMEM;
1676                 }
1677                 if (copy_from_user
1678                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1679                         vfree(vcp);
1680                         return -EFAULT;
1681                 }
1682                 write_overlay_mask(file, vcp, clipcount);
1683                 vfree(vcp);
1684         }
1685
1686         fh->overlay_settings.is_set = 1;
1687         if (fh->overlay_active != ZORAN_FREE &&
1688             zr->overlay_active != ZORAN_FREE)
1689                 zr->overlay_settings = fh->overlay_settings;
1690
1691         if (on)
1692                 zr36057_overlay(zr, 1);
1693
1694         /* Make sure the changes come into effect */
1695         return wait_grab_pending(zr);
1696 }
1697
1698 static int
1699 setup_overlay (struct file *file,
1700                int          on)
1701 {
1702         struct zoran_fh *fh = file->private_data;
1703         struct zoran *zr = fh->zr;
1704
1705         /* If there is nothing to do, return immediatly */
1706         if ((on && fh->overlay_active != ZORAN_FREE) ||
1707             (!on && fh->overlay_active == ZORAN_FREE))
1708                 return 0;
1709
1710         /* check whether we're touching someone else's overlay */
1711         if (on && zr->overlay_active != ZORAN_FREE &&
1712             fh->overlay_active == ZORAN_FREE) {
1713                 dprintk(1,
1714                         KERN_ERR
1715                         "%s: setup_overlay() - overlay is already active for another session\n",
1716                         ZR_DEVNAME(zr));
1717                 return -EBUSY;
1718         }
1719         if (!on && zr->overlay_active != ZORAN_FREE &&
1720             fh->overlay_active == ZORAN_FREE) {
1721                 dprintk(1,
1722                         KERN_ERR
1723                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1724                         ZR_DEVNAME(zr));
1725                 return -EPERM;
1726         }
1727
1728         if (on == 0) {
1729                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1730                 zr->v4l_overlay_active = 0;
1731                 /* When a grab is running, the video simply
1732                  * won't be switched on any more */
1733                 if (!zr->v4l_memgrab_active)
1734                         zr36057_overlay(zr, 0);
1735                 zr->overlay_mask = NULL;
1736         } else {
1737                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1738                         dprintk(1,
1739                                 KERN_ERR
1740                                 "%s: setup_overlay() - buffer or window not set\n",
1741                                 ZR_DEVNAME(zr));
1742                         return -EINVAL;
1743                 }
1744                 if (!fh->overlay_settings.format) {
1745                         dprintk(1,
1746                                 KERN_ERR
1747                                 "%s: setup_overlay() - no overlay format set\n",
1748                                 ZR_DEVNAME(zr));
1749                         return -EINVAL;
1750                 }
1751                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1752                 zr->v4l_overlay_active = 1;
1753                 zr->overlay_mask = fh->overlay_mask;
1754                 zr->overlay_settings = fh->overlay_settings;
1755                 if (!zr->v4l_memgrab_active)
1756                         zr36057_overlay(zr, 1);
1757                 /* When a grab is running, the video will be
1758                  * switched on when grab is finished */
1759         }
1760
1761         /* Make sure the changes come into effect */
1762         return wait_grab_pending(zr);
1763 }
1764
1765 #ifdef HAVE_V4L2
1766         /* get the status of a buffer in the clients buffer queue */
1767 static int
1768 zoran_v4l2_buffer_status (struct file        *file,
1769                           struct v4l2_buffer *buf,
1770                           int                 num)
1771 {
1772         struct zoran_fh *fh = file->private_data;
1773         struct zoran *zr = fh->zr;
1774
1775         buf->flags = V4L2_BUF_FLAG_MAPPED;
1776
1777         switch (fh->map_mode) {
1778         case ZORAN_MAP_MODE_RAW:
1779
1780                 /* check range */
1781                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1782                     !fh->v4l_buffers.allocated) {
1783                         dprintk(1,
1784                                 KERN_ERR
1785                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1786                                 ZR_DEVNAME(zr));
1787                         return -EINVAL;
1788                 }
1789
1790                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1791                 buf->length = fh->v4l_buffers.buffer_size;
1792
1793                 /* get buffer */
1794                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1795                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1796                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1797                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1798                         buf->flags |= V4L2_BUF_FLAG_DONE;
1799                         buf->timestamp =
1800                             fh->v4l_buffers.buffer[num].bs.timestamp;
1801                 } else {
1802                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1803                 }
1804
1805                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1806                         buf->field = V4L2_FIELD_TOP;
1807                 else
1808                         buf->field = V4L2_FIELD_INTERLACED;
1809
1810                 break;
1811
1812         case ZORAN_MAP_MODE_JPG_REC:
1813         case ZORAN_MAP_MODE_JPG_PLAY:
1814
1815                 /* check range */
1816                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1817                     !fh->jpg_buffers.allocated) {
1818                         dprintk(1,
1819                                 KERN_ERR
1820                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1821                                 ZR_DEVNAME(zr));
1822                         return -EINVAL;
1823                 }
1824
1825                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1826                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1827                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1828                 buf->length = fh->jpg_buffers.buffer_size;
1829
1830                 /* these variables are only written after frame has been captured */
1831                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1832                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1833                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1834                         buf->timestamp =
1835                             fh->jpg_buffers.buffer[num].bs.timestamp;
1836                         buf->bytesused =
1837                             fh->jpg_buffers.buffer[num].bs.length;
1838                         buf->flags |= V4L2_BUF_FLAG_DONE;
1839                 } else {
1840                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1841                 }
1842
1843                 /* which fields are these? */
1844                 if (fh->jpg_settings.TmpDcm != 1)
1845                         buf->field =
1846                             fh->jpg_settings.
1847                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1848                 else
1849                         buf->field =
1850                             fh->jpg_settings.
1851                             odd_even ? V4L2_FIELD_SEQ_TB :
1852                             V4L2_FIELD_SEQ_BT;
1853
1854                 break;
1855
1856         default:
1857
1858                 dprintk(5,
1859                         KERN_ERR
1860                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1861                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1862                 return -EINVAL;
1863         }
1864
1865         buf->memory = V4L2_MEMORY_MMAP;
1866         buf->index = num;
1867         buf->m.offset = buf->length * num;
1868
1869         return 0;
1870 }
1871 #endif
1872
1873 static int
1874 zoran_set_norm (struct zoran *zr,
1875                 int           norm) /* VIDEO_MODE_* */
1876 {
1877         int norm_encoder, on;
1878
1879         if (zr->v4l_buffers.active != ZORAN_FREE ||
1880             zr->jpg_buffers.active != ZORAN_FREE) {
1881                 dprintk(1,
1882                         KERN_WARNING
1883                         "%s: set_norm() called while in playback/capture mode\n",
1884                         ZR_DEVNAME(zr));
1885                 return -EBUSY;
1886         }
1887
1888         if (lock_norm && norm != zr->norm) {
1889                 if (lock_norm > 1) {
1890                         dprintk(1,
1891                                 KERN_WARNING
1892                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1893                                 ZR_DEVNAME(zr));
1894                         return -EPERM;
1895                 } else {
1896                         dprintk(1,
1897                                 KERN_WARNING
1898                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1899                                 ZR_DEVNAME(zr));
1900                         norm = zr->norm;
1901                 }
1902         }
1903
1904         if (norm != VIDEO_MODE_AUTO &&
1905             (norm < 0 || norm >= zr->card.norms ||
1906              !zr->card.tvn[norm])) {
1907                 dprintk(1,
1908                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1909                         ZR_DEVNAME(zr), norm);
1910                 return -EINVAL;
1911         }
1912
1913         if (norm == VIDEO_MODE_AUTO) {
1914                 int status;
1915
1916                 /* if we have autodetect, ... */
1917                 struct video_decoder_capability caps;
1918                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1919                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1920                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1921                                 ZR_DEVNAME(zr));
1922                         return -EINVAL;
1923                 }
1924
1925                 decoder_command(zr, DECODER_SET_NORM, &norm);
1926
1927                 /* let changes come into effect */
1928                 ssleep(2);
1929
1930                 decoder_command(zr, DECODER_GET_STATUS, &status);
1931                 if (!(status & DECODER_STATUS_GOOD)) {
1932                         dprintk(1,
1933                                 KERN_ERR
1934                                 "%s: set_norm() - no norm detected\n",
1935                                 ZR_DEVNAME(zr));
1936                         /* reset norm */
1937                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1938                         return -EIO;
1939                 }
1940
1941                 if (status & DECODER_STATUS_NTSC)
1942                         norm = VIDEO_MODE_NTSC;
1943                 else if (status & DECODER_STATUS_SECAM)
1944                         norm = VIDEO_MODE_SECAM;
1945                 else
1946                         norm = VIDEO_MODE_PAL;
1947         }
1948         zr->timing = zr->card.tvn[norm];
1949         norm_encoder = norm;
1950
1951         /* We switch overlay off and on since a change in the
1952          * norm needs different VFE settings */
1953         on = zr->overlay_active && !zr->v4l_memgrab_active;
1954         if (on)
1955                 zr36057_overlay(zr, 0);
1956
1957         decoder_command(zr, DECODER_SET_NORM, &norm);
1958         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1959
1960         if (on)
1961                 zr36057_overlay(zr, 1);
1962
1963         /* Make sure the changes come into effect */
1964         zr->norm = norm;
1965
1966         return 0;
1967 }
1968
1969 static int
1970 zoran_set_input (struct zoran *zr,
1971                  int           input)
1972 {
1973         int realinput;
1974
1975         if (input == zr->input) {
1976                 return 0;
1977         }
1978
1979         if (zr->v4l_buffers.active != ZORAN_FREE ||
1980             zr->jpg_buffers.active != ZORAN_FREE) {
1981                 dprintk(1,
1982                         KERN_WARNING
1983                         "%s: set_input() called while in playback/capture mode\n",
1984                         ZR_DEVNAME(zr));
1985                 return -EBUSY;
1986         }
1987
1988         if (input < 0 || input >= zr->card.inputs) {
1989                 dprintk(1,
1990                         KERN_ERR
1991                         "%s: set_input() - unnsupported input %d\n",
1992                         ZR_DEVNAME(zr), input);
1993                 return -EINVAL;
1994         }
1995
1996         realinput = zr->card.input[input].muxsel;
1997         zr->input = input;
1998
1999         decoder_command(zr, DECODER_SET_INPUT, &realinput);
2000
2001         return 0;
2002 }
2003
2004 /*
2005  *   ioctl routine
2006  */
2007
2008 static int
2009 zoran_do_ioctl (struct inode *inode,
2010                 struct file  *file,
2011                 unsigned int  cmd,
2012                 void         *arg)
2013 {
2014         struct zoran_fh *fh = file->private_data;
2015         struct zoran *zr = fh->zr;
2016         /* CAREFUL: used in multiple places here */
2017         struct zoran_jpg_settings settings;
2018
2019         /* we might have older buffers lying around... We don't want
2020          * to wait, but we do want to try cleaning them up ASAP. So
2021          * we try to obtain the lock and free them. If that fails, we
2022          * don't do anything and wait for the next turn. In the end,
2023          * zoran_close() or a new allocation will still free them...
2024          * This is just a 'the sooner the better' extra 'feature'
2025          *
2026          * We don't free the buffers right on munmap() because that
2027          * causes oopses (kfree() inside munmap() oopses for no
2028          * apparent reason - it's also not reproduceable in any way,
2029          * but moving the free code outside the munmap() handler fixes
2030          * all this... If someone knows why, please explain me (Ronald)
2031          */
2032         if (!!mutex_trylock(&zr->resource_lock)) {
2033                 /* we obtained it! Let's try to free some things */
2034                 if (fh->jpg_buffers.ready_to_be_freed)
2035                         jpg_fbuffer_free(file);
2036                 if (fh->v4l_buffers.ready_to_be_freed)
2037                         v4l_fbuffer_free(file);
2038
2039                 mutex_unlock(&zr->resource_lock);
2040         }
2041
2042         switch (cmd) {
2043
2044         case VIDIOCGCAP:
2045         {
2046                 struct video_capability *vcap = arg;
2047
2048                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
2049
2050                 memset(vcap, 0, sizeof(struct video_capability));
2051                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
2052                 vcap->type = ZORAN_VID_TYPE;
2053
2054                 vcap->channels = zr->card.inputs;
2055                 vcap->audios = 0;
2056                 mutex_lock(&zr->resource_lock);
2057                 vcap->maxwidth = BUZ_MAX_WIDTH;
2058                 vcap->maxheight = BUZ_MAX_HEIGHT;
2059                 vcap->minwidth = BUZ_MIN_WIDTH;
2060                 vcap->minheight = BUZ_MIN_HEIGHT;
2061                 mutex_unlock(&zr->resource_lock);
2062
2063                 return 0;
2064         }
2065                 break;
2066
2067         case VIDIOCGCHAN:
2068         {
2069                 struct video_channel *vchan = arg;
2070                 int channel = vchan->channel;
2071
2072                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2073                         ZR_DEVNAME(zr), vchan->channel);
2074
2075                 memset(vchan, 0, sizeof(struct video_channel));
2076                 if (channel > zr->card.inputs || channel < 0) {
2077                         dprintk(1,
2078                                 KERN_ERR
2079                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
2080                                 ZR_DEVNAME(zr), channel);
2081                         return -EINVAL;
2082                 }
2083
2084                 strcpy(vchan->name, zr->card.input[channel].name);
2085
2086                 vchan->tuners = 0;
2087                 vchan->flags = 0;
2088                 vchan->type = VIDEO_TYPE_CAMERA;
2089                 mutex_lock(&zr->resource_lock);
2090                 vchan->norm = zr->norm;
2091                 mutex_unlock(&zr->resource_lock);
2092                 vchan->channel = channel;
2093
2094                 return 0;
2095         }
2096                 break;
2097
2098                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2099                  *
2100                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2101                  * *                                 ^^^^^^^
2102                  * * The famos BTTV driver has it implemented with a struct video_channel argument
2103                  * * and we follow it for compatibility reasons
2104                  * *
2105                  * * BTW: this is the only way the user can set the norm!
2106                  */
2107
2108         case VIDIOCSCHAN:
2109         {
2110                 struct video_channel *vchan = arg;
2111                 int res;
2112
2113                 dprintk(3,
2114                         KERN_DEBUG
2115                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2116                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2117
2118                 mutex_lock(&zr->resource_lock);
2119                 if ((res = zoran_set_input(zr, vchan->channel)))
2120                         goto schan_unlock_and_return;
2121                 if ((res = zoran_set_norm(zr, vchan->norm)))
2122                         goto schan_unlock_and_return;
2123
2124                 /* Make sure the changes come into effect */
2125                 res = wait_grab_pending(zr);
2126         schan_unlock_and_return:
2127                 mutex_unlock(&zr->resource_lock);
2128                 return res;
2129         }
2130                 break;
2131
2132         case VIDIOCGPICT:
2133         {
2134                 struct video_picture *vpict = arg;
2135
2136                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2137
2138                 memset(vpict, 0, sizeof(struct video_picture));
2139                 mutex_lock(&zr->resource_lock);
2140                 vpict->hue = zr->hue;
2141                 vpict->brightness = zr->brightness;
2142                 vpict->contrast = zr->contrast;
2143                 vpict->colour = zr->saturation;
2144                 if (fh->overlay_settings.format) {
2145                         vpict->depth = fh->overlay_settings.format->depth;
2146                         vpict->palette = fh->overlay_settings.format->palette;
2147                 } else {
2148                         vpict->depth = 0;
2149                 }
2150                 mutex_unlock(&zr->resource_lock);
2151
2152                 return 0;
2153         }
2154                 break;
2155
2156         case VIDIOCSPICT:
2157         {
2158                 struct video_picture *vpict = arg;
2159                 int i;
2160
2161                 dprintk(3,
2162                         KERN_DEBUG
2163                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2164                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2165                         vpict->colour, vpict->contrast, vpict->depth,
2166                         vpict->palette);
2167
2168                 for (i = 0; i < zoran_num_formats; i++) {
2169                         const struct zoran_format *fmt = &zoran_formats[i];
2170
2171                         if (fmt->palette != -1 &&
2172                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2173                             fmt->palette == vpict->palette &&
2174                             fmt->depth == vpict->depth)
2175                                 break;
2176                 }
2177                 if (i == zoran_num_formats) {
2178                         dprintk(1,
2179                                 KERN_ERR
2180                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2181                                 ZR_DEVNAME(zr), vpict->palette);
2182                         return -EINVAL;
2183                 }
2184
2185                 mutex_lock(&zr->resource_lock);
2186
2187                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2188
2189                 zr->hue = vpict->hue;
2190                 zr->contrast = vpict->contrast;
2191                 zr->saturation = vpict->colour;
2192                 zr->brightness = vpict->brightness;
2193
2194                 fh->overlay_settings.format = &zoran_formats[i];
2195
2196                 mutex_unlock(&zr->resource_lock);
2197
2198                 return 0;
2199         }
2200                 break;
2201
2202         case VIDIOCCAPTURE:
2203         {
2204                 int *on = arg, res;
2205
2206                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2207                         ZR_DEVNAME(zr), *on);
2208
2209                 mutex_lock(&zr->resource_lock);
2210                 res = setup_overlay(file, *on);
2211                 mutex_unlock(&zr->resource_lock);
2212
2213                 return res;
2214         }
2215                 break;
2216
2217         case VIDIOCGWIN:
2218         {
2219                 struct video_window *vwin = arg;
2220
2221                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2222
2223                 memset(vwin, 0, sizeof(struct video_window));
2224                 mutex_lock(&zr->resource_lock);
2225                 vwin->x = fh->overlay_settings.x;
2226                 vwin->y = fh->overlay_settings.y;
2227                 vwin->width = fh->overlay_settings.width;
2228                 vwin->height = fh->overlay_settings.height;
2229                 mutex_unlock(&zr->resource_lock);
2230                 vwin->clipcount = 0;
2231                 return 0;
2232         }
2233                 break;
2234
2235         case VIDIOCSWIN:
2236         {
2237                 struct video_window *vwin = arg;
2238                 int res;
2239
2240                 dprintk(3,
2241                         KERN_DEBUG
2242                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2243                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2244                         vwin->height, vwin->clipcount);
2245
2246                 mutex_lock(&zr->resource_lock);
2247                 res =
2248                     setup_window(file, vwin->x, vwin->y, vwin->width,
2249                                  vwin->height, vwin->clips,
2250                                  vwin->clipcount, NULL);
2251                 mutex_unlock(&zr->resource_lock);
2252
2253                 return res;
2254         }
2255                 break;
2256
2257         case VIDIOCGFBUF:
2258         {
2259                 struct video_buffer *vbuf = arg;
2260
2261                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2262
2263                 mutex_lock(&zr->resource_lock);
2264                 *vbuf = zr->buffer;
2265                 mutex_unlock(&zr->resource_lock);
2266                 return 0;
2267         }
2268                 break;
2269
2270         case VIDIOCSFBUF:
2271         {
2272                 struct video_buffer *vbuf = arg;
2273                 int i, res = 0;
2274
2275                 dprintk(3,
2276                         KERN_DEBUG
2277                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2278                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2279                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2280
2281                 for (i = 0; i < zoran_num_formats; i++)
2282                         if (zoran_formats[i].depth == vbuf->depth)
2283                                 break;
2284                 if (i == zoran_num_formats) {
2285                         dprintk(1,
2286                                 KERN_ERR
2287                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2288                                 ZR_DEVNAME(zr), vbuf->depth);
2289                         return -EINVAL;
2290                 }
2291
2292                 mutex_lock(&zr->resource_lock);
2293                 res =
2294                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2295                                   vbuf->width, vbuf->height,
2296                                   vbuf->bytesperline);
2297                 mutex_unlock(&zr->resource_lock);
2298
2299                 return res;
2300         }
2301                 break;
2302
2303         case VIDIOCSYNC:
2304         {
2305                 int *frame = arg, res;
2306
2307                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2308                         ZR_DEVNAME(zr), *frame);
2309
2310                 mutex_lock(&zr->resource_lock);
2311                 res = v4l_sync(file, *frame);
2312                 mutex_unlock(&zr->resource_lock);
2313                 if (!res)
2314                         zr->v4l_sync_tail++;
2315                 return res;
2316         }
2317                 break;
2318
2319         case VIDIOCMCAPTURE:
2320         {
2321                 struct video_mmap *vmap = arg;
2322                 int res;
2323
2324                 dprintk(3,
2325                         KERN_DEBUG
2326                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2327                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2328                         vmap->format);
2329
2330                 mutex_lock(&zr->resource_lock);
2331                 res = v4l_grab(file, vmap);
2332                 mutex_unlock(&zr->resource_lock);
2333                 return res;
2334         }
2335                 break;
2336
2337         case VIDIOCGMBUF:
2338         {
2339                 struct video_mbuf *vmbuf = arg;
2340                 int i, res = 0;
2341
2342                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2343
2344                 vmbuf->size =
2345                     fh->v4l_buffers.num_buffers *
2346                     fh->v4l_buffers.buffer_size;
2347                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2348                 for (i = 0; i < vmbuf->frames; i++) {
2349                         vmbuf->offsets[i] =
2350                             i * fh->v4l_buffers.buffer_size;
2351                 }
2352
2353                 mutex_lock(&zr->resource_lock);
2354
2355                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2356                         dprintk(1,
2357                                 KERN_ERR
2358                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2359                                 ZR_DEVNAME(zr));
2360                         res = -EINVAL;
2361                         goto v4l1reqbuf_unlock_and_return;
2362                 }
2363
2364                 if (v4l_fbuffer_alloc(file)) {
2365                         res = -ENOMEM;
2366                         goto v4l1reqbuf_unlock_and_return;
2367                 }
2368
2369                 /* The next mmap will map the V4L buffers */
2370                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2371         v4l1reqbuf_unlock_and_return:
2372                 mutex_unlock(&zr->resource_lock);
2373
2374                 return res;
2375         }
2376                 break;
2377
2378         case VIDIOCGUNIT:
2379         {
2380                 struct video_unit *vunit = arg;
2381
2382                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2383
2384                 vunit->video = zr->video_dev->minor;
2385                 vunit->vbi = VIDEO_NO_UNIT;
2386                 vunit->radio = VIDEO_NO_UNIT;
2387                 vunit->audio = VIDEO_NO_UNIT;
2388                 vunit->teletext = VIDEO_NO_UNIT;
2389
2390                 return 0;
2391         }
2392                 break;
2393
2394                 /*
2395                  * RJ: In principal we could support subcaptures for V4L grabbing.
2396                  *     Not even the famous BTTV driver has them, however.
2397                  *     If there should be a strong demand, one could consider
2398                  *     to implement them.
2399                  */
2400         case VIDIOCGCAPTURE:
2401         {
2402                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2403                         ZR_DEVNAME(zr));
2404                 return -EINVAL;
2405         }
2406                 break;
2407
2408         case VIDIOCSCAPTURE:
2409         {
2410                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2411                         ZR_DEVNAME(zr));
2412                 return -EINVAL;
2413         }
2414                 break;
2415
2416         case BUZIOC_G_PARAMS:
2417         {
2418                 struct zoran_params *bparams = arg;
2419
2420                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2421
2422                 memset(bparams, 0, sizeof(struct zoran_params));
2423                 bparams->major_version = MAJOR_VERSION;
2424                 bparams->minor_version = MINOR_VERSION;
2425
2426                 mutex_lock(&zr->resource_lock);
2427
2428                 bparams->norm = zr->norm;
2429                 bparams->input = zr->input;
2430
2431                 bparams->decimation = fh->jpg_settings.decimation;
2432                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2433                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2434                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2435                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2436                 bparams->img_x = fh->jpg_settings.img_x;
2437                 bparams->img_y = fh->jpg_settings.img_y;
2438                 bparams->img_width = fh->jpg_settings.img_width;
2439                 bparams->img_height = fh->jpg_settings.img_height;
2440                 bparams->odd_even = fh->jpg_settings.odd_even;
2441
2442                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2443                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2444                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2445                 memcpy(bparams->APP_data,
2446                        fh->jpg_settings.jpg_comp.APP_data,
2447                        sizeof(bparams->APP_data));
2448                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2449                 memcpy(bparams->COM_data,
2450                        fh->jpg_settings.jpg_comp.COM_data,
2451                        sizeof(bparams->COM_data));
2452                 bparams->jpeg_markers =
2453                     fh->jpg_settings.jpg_comp.jpeg_markers;
2454
2455                 mutex_unlock(&zr->resource_lock);
2456
2457                 bparams->VFIFO_FB = 0;
2458
2459                 return 0;
2460         }
2461                 break;
2462
2463         case BUZIOC_S_PARAMS:
2464         {
2465                 struct zoran_params *bparams = arg;
2466                 int res = 0;
2467
2468                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2469
2470                 settings.decimation = bparams->decimation;
2471                 settings.HorDcm = bparams->HorDcm;
2472                 settings.VerDcm = bparams->VerDcm;
2473                 settings.TmpDcm = bparams->TmpDcm;
2474                 settings.field_per_buff = bparams->field_per_buff;
2475                 settings.img_x = bparams->img_x;
2476                 settings.img_y = bparams->img_y;
2477                 settings.img_width = bparams->img_width;
2478                 settings.img_height = bparams->img_height;
2479                 settings.odd_even = bparams->odd_even;
2480
2481                 settings.jpg_comp.quality = bparams->quality;
2482                 settings.jpg_comp.APPn = bparams->APPn;
2483                 settings.jpg_comp.APP_len = bparams->APP_len;
2484                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2485                        sizeof(bparams->APP_data));
2486                 settings.jpg_comp.COM_len = bparams->COM_len;
2487                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2488                        sizeof(bparams->COM_data));
2489                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2490
2491                 mutex_lock(&zr->resource_lock);
2492
2493                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2494                         dprintk(1,
2495                                 KERN_ERR
2496                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2497                                 ZR_DEVNAME(zr));
2498                         res = -EINVAL;
2499                         goto sparams_unlock_and_return;
2500                 }
2501
2502                 /* Check the params first before overwriting our
2503                  * nternal values */
2504                 if (zoran_check_jpg_settings(zr, &settings)) {
2505                         res = -EINVAL;
2506                         goto sparams_unlock_and_return;
2507                 }
2508
2509                 fh->jpg_settings = settings;
2510         sparams_unlock_and_return:
2511                 mutex_unlock(&zr->resource_lock);
2512
2513                 return res;
2514         }
2515                 break;
2516
2517         case BUZIOC_REQBUFS:
2518         {
2519                 struct zoran_requestbuffers *breq = arg;
2520                 int res = 0;
2521
2522                 dprintk(3,
2523                         KERN_DEBUG
2524                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2525                         ZR_DEVNAME(zr), breq->count, breq->size);
2526
2527                 /* Enforce reasonable lower and upper limits */
2528                 if (breq->count < 4)
2529                         breq->count = 4;        /* Could be choosen smaller */
2530                 if (breq->count > jpg_nbufs)
2531                         breq->count = jpg_nbufs;
2532                 breq->size = PAGE_ALIGN(breq->size);
2533                 if (breq->size < 8192)
2534                         breq->size = 8192;      /* Arbitrary */
2535                 /* breq->size is limited by 1 page for the stat_com
2536                  * tables to a Maximum of 2 MB */
2537                 if (breq->size > jpg_bufsize)
2538                         breq->size = jpg_bufsize;
2539                 if (fh->jpg_buffers.need_contiguous &&
2540                     breq->size > MAX_KMALLOC_MEM)
2541                         breq->size = MAX_KMALLOC_MEM;
2542
2543                 mutex_lock(&zr->resource_lock);
2544
2545                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2546                         dprintk(1,
2547                                 KERN_ERR
2548                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2549                                 ZR_DEVNAME(zr));
2550                         res = -EBUSY;
2551                         goto jpgreqbuf_unlock_and_return;
2552                 }
2553
2554                 fh->jpg_buffers.num_buffers = breq->count;
2555                 fh->jpg_buffers.buffer_size = breq->size;
2556
2557                 if (jpg_fbuffer_alloc(file)) {
2558                         res = -ENOMEM;
2559                         goto jpgreqbuf_unlock_and_return;
2560                 }
2561
2562                 /* The next mmap will map the MJPEG buffers - could
2563                  * also be *_PLAY, but it doesn't matter here */
2564                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2565         jpgreqbuf_unlock_and_return:
2566                 mutex_unlock(&zr->resource_lock);
2567
2568                 return res;
2569         }
2570                 break;
2571
2572         case BUZIOC_QBUF_CAPT:
2573         {
2574                 int *frame = arg, res;
2575
2576                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2577                         ZR_DEVNAME(zr), *frame);
2578
2579                 mutex_lock(&zr->resource_lock);
2580                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2581                 mutex_unlock(&zr->resource_lock);
2582
2583                 return res;
2584         }
2585                 break;
2586
2587         case BUZIOC_QBUF_PLAY:
2588         {
2589                 int *frame = arg, res;
2590
2591                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2592                         ZR_DEVNAME(zr), *frame);
2593
2594                 mutex_lock(&zr->resource_lock);
2595                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2596                 mutex_unlock(&zr->resource_lock);
2597
2598                 return res;
2599         }
2600                 break;
2601
2602         case BUZIOC_SYNC:
2603         {
2604                 struct zoran_sync *bsync = arg;
2605                 int res;
2606
2607                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2608
2609                 mutex_lock(&zr->resource_lock);
2610                 res = jpg_sync(file, bsync);
2611                 mutex_unlock(&zr->resource_lock);
2612
2613                 return res;
2614         }
2615                 break;
2616
2617         case BUZIOC_G_STATUS:
2618         {
2619                 struct zoran_status *bstat = arg;
2620                 int norm, input, status, res = 0;
2621
2622                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2623
2624                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2625                         dprintk(1,
2626                                 KERN_ERR
2627                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2628                                 ZR_DEVNAME(zr));
2629                         return -EINVAL;
2630                 }
2631
2632                 input = zr->card.input[bstat->input].muxsel;
2633                 norm = VIDEO_MODE_AUTO;
2634
2635                 mutex_lock(&zr->resource_lock);
2636
2637                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2638                         dprintk(1,
2639                                 KERN_ERR
2640                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2641                                 ZR_DEVNAME(zr));
2642                         res = -EINVAL;
2643                         goto gstat_unlock_and_return;
2644                 }
2645
2646                 decoder_command(zr, DECODER_SET_INPUT, &input);
2647                 decoder_command(zr, DECODER_SET_NORM, &norm);
2648
2649                 /* sleep 1 second */
2650                 ssleep(1);
2651
2652                 /* Get status of video decoder */
2653                 decoder_command(zr, DECODER_GET_STATUS, &status);
2654
2655                 /* restore previous input and norm */
2656                 input = zr->card.input[zr->input].muxsel;
2657                 decoder_command(zr, DECODER_SET_INPUT, &input);
2658                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2659         gstat_unlock_and_return:
2660                 mutex_unlock(&zr->resource_lock);
2661
2662                 if (!res) {
2663                         bstat->signal =
2664                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2665                         if (status & DECODER_STATUS_NTSC)
2666                                 bstat->norm = VIDEO_MODE_NTSC;
2667                         else if (status & DECODER_STATUS_SECAM)
2668                                 bstat->norm = VIDEO_MODE_SECAM;
2669                         else
2670                                 bstat->norm = VIDEO_MODE_PAL;
2671
2672                         bstat->color =
2673                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2674                 }
2675
2676                 return res;
2677         }
2678                 break;
2679
2680 #ifdef HAVE_V4L2
2681
2682                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2683                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2684                  */
2685
2686         case VIDIOC_QUERYCAP:
2687         {
2688                 struct v4l2_capability *cap = arg;
2689
2690                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2691
2692                 memset(cap, 0, sizeof(*cap));
2693                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2694                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2695                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2696                          pci_name(zr->pci_dev));
2697                 cap->version =
2698                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2699                                    RELEASE_VERSION);
2700                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2701
2702                 return 0;
2703         }
2704                 break;
2705
2706         case VIDIOC_ENUM_FMT:
2707         {
2708                 struct v4l2_fmtdesc *fmt = arg;
2709                 int index = fmt->index, num = -1, i, flag = 0, type =
2710                     fmt->type;
2711
2712                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2713                         ZR_DEVNAME(zr), fmt->index);
2714
2715                 switch (fmt->type) {
2716                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2717                         flag = ZORAN_FORMAT_CAPTURE;
2718                         break;
2719                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2720                         flag = ZORAN_FORMAT_PLAYBACK;
2721                         break;
2722                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2723                         flag = ZORAN_FORMAT_OVERLAY;
2724                         break;
2725                 default:
2726                         dprintk(1,
2727                                 KERN_ERR
2728                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2729                                 ZR_DEVNAME(zr), fmt->type);
2730                         return -EINVAL;
2731                 }
2732
2733                 for (i = 0; i < zoran_num_formats; i++) {
2734                         if (zoran_formats[i].flags & flag)
2735                                 num++;
2736                         if (num == fmt->index)
2737                                 break;
2738                 }
2739                 if (fmt->index < 0 /* late, but not too late */  ||
2740                     i == zoran_num_formats)
2741                         return -EINVAL;
2742
2743                 memset(fmt, 0, sizeof(*fmt));
2744                 fmt->index = index;
2745                 fmt->type = type;
2746                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2747                 fmt->pixelformat = zoran_formats[i].fourcc;
2748                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2749                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2750
2751                 return 0;
2752         }
2753                 break;
2754
2755         case VIDIOC_G_FMT:
2756         {
2757                 struct v4l2_format *fmt = arg;
2758                 int type = fmt->type;
2759
2760                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2761
2762                 memset(fmt, 0, sizeof(*fmt));
2763                 fmt->type = type;
2764
2765                 switch (fmt->type) {
2766                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2767
2768                         mutex_lock(&zr->resource_lock);
2769
2770                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2771                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2772                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2773                         fmt->fmt.win.w.height =
2774                             fh->overlay_settings.height;
2775                         if (fh->overlay_settings.width * 2 >
2776                             BUZ_MAX_HEIGHT)
2777                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2778                         else
2779                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2780
2781                         mutex_unlock(&zr->resource_lock);
2782
2783                         break;
2784
2785                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2786                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2787
2788                         mutex_lock(&zr->resource_lock);
2789
2790                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2791                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2792
2793                                 fmt->fmt.pix.width =
2794                                     fh->v4l_settings.width;
2795                                 fmt->fmt.pix.height =
2796                                     fh->v4l_settings.height;
2797                                 fmt->fmt.pix.sizeimage =
2798                                     fh->v4l_buffers.buffer_size;
2799                                 fmt->fmt.pix.pixelformat =
2800                                     fh->v4l_settings.format->fourcc;
2801                                 fmt->fmt.pix.colorspace =
2802                                     fh->v4l_settings.format->colorspace;
2803                                 fmt->fmt.pix.bytesperline = 0;
2804                                 if (BUZ_MAX_HEIGHT <
2805                                     (fh->v4l_settings.height * 2))
2806                                         fmt->fmt.pix.field =
2807                                             V4L2_FIELD_INTERLACED;
2808                                 else
2809                                         fmt->fmt.pix.field =
2810                                             V4L2_FIELD_TOP;
2811
2812                         } else {
2813
2814                                 fmt->fmt.pix.width =
2815                                     fh->jpg_settings.img_width /
2816                                     fh->jpg_settings.HorDcm;
2817                                 fmt->fmt.pix.height =
2818                                     fh->jpg_settings.img_height /
2819                                     (fh->jpg_settings.VerDcm *
2820                                      fh->jpg_settings.TmpDcm);
2821                                 fmt->fmt.pix.sizeimage =
2822                                     zoran_v4l2_calc_bufsize(&fh->
2823                                                             jpg_settings);
2824                                 fmt->fmt.pix.pixelformat =
2825                                     V4L2_PIX_FMT_MJPEG;
2826                                 if (fh->jpg_settings.TmpDcm == 1)
2827                                         fmt->fmt.pix.field =
2828                                             (fh->jpg_settings.
2829                                              odd_even ? V4L2_FIELD_SEQ_BT :
2830                                              V4L2_FIELD_SEQ_BT);
2831                                 else
2832                                         fmt->fmt.pix.field =
2833                                             (fh->jpg_settings.
2834                                              odd_even ? V4L2_FIELD_TOP :
2835                                              V4L2_FIELD_BOTTOM);
2836
2837                                 fmt->fmt.pix.bytesperline = 0;
2838                                 fmt->fmt.pix.colorspace =
2839                                     V4L2_COLORSPACE_SMPTE170M;
2840                         }
2841
2842                         mutex_unlock(&zr->resource_lock);
2843
2844                         break;
2845
2846                 default:
2847                         dprintk(1,
2848                                 KERN_ERR
2849                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2850                                 ZR_DEVNAME(zr), fmt->type);
2851                         return -EINVAL;
2852                 }
2853                 return 0;
2854         }
2855                 break;
2856
2857         case VIDIOC_S_FMT:
2858         {
2859                 struct v4l2_format *fmt = arg;
2860                 int i, res = 0;
2861                 __u32 printformat;
2862
2863                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2864                         ZR_DEVNAME(zr), fmt->type);
2865
2866                 switch (fmt->type) {
2867                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2868
2869                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2870                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2871                                 fmt->fmt.win.w.width,
2872                                 fmt->fmt.win.w.height,
2873                                 fmt->fmt.win.clipcount,
2874                                 fmt->fmt.win.bitmap);
2875                         mutex_lock(&zr->resource_lock);
2876                         res =
2877                             setup_window(file, fmt->fmt.win.w.left,
2878                                          fmt->fmt.win.w.top,
2879                                          fmt->fmt.win.w.width,
2880                                          fmt->fmt.win.w.height,
2881                                          (struct video_clip __user *)
2882                                            fmt->fmt.win.clips,
2883                                          fmt->fmt.win.clipcount,
2884                                          fmt->fmt.win.bitmap);
2885                         mutex_unlock(&zr->resource_lock);
2886                         return res;
2887                         break;
2888
2889                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2890                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2891
2892                         printformat =
2893                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2894                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2895                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2896                                 fmt->fmt.pix.pixelformat,
2897                                 (char *) &printformat);
2898
2899                         if (fmt->fmt.pix.bytesperline > 0) {
2900                                 dprintk(5,
2901                                         KERN_ERR "%s: bpl not supported\n",
2902                                         ZR_DEVNAME(zr));
2903                                 return -EINVAL;
2904                         }
2905
2906                         /* we can be requested to do JPEG/raw playback/capture */
2907                         if (!
2908                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2909                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2910                               fmt->fmt.pix.pixelformat ==
2911                               V4L2_PIX_FMT_MJPEG))) {
2912                                 dprintk(1,
2913                                         KERN_ERR
2914                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2915                                         ZR_DEVNAME(zr), fmt->type,
2916                                         fmt->fmt.pix.pixelformat,
2917                                         (char *) &printformat);
2918                                 return -EINVAL;
2919                         }
2920
2921                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2922                                 mutex_lock(&zr->resource_lock);
2923
2924                                 settings = fh->jpg_settings;
2925
2926                                 if (fh->v4l_buffers.allocated ||
2927                                     fh->jpg_buffers.allocated) {
2928                                         dprintk(1,
2929                                                 KERN_ERR
2930                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2931                                                 ZR_DEVNAME(zr));
2932                                         res = -EBUSY;
2933                                         goto sfmtjpg_unlock_and_return;
2934                                 }
2935
2936                                 /* we actually need to set 'real' parameters now */
2937                                 if ((fmt->fmt.pix.height * 2) >
2938                                     BUZ_MAX_HEIGHT)
2939                                         settings.TmpDcm = 1;
2940                                 else
2941                                         settings.TmpDcm = 2;
2942                                 settings.decimation = 0;
2943                                 if (fmt->fmt.pix.height <=
2944                                     fh->jpg_settings.img_height / 2)
2945                                         settings.VerDcm = 2;
2946                                 else
2947                                         settings.VerDcm = 1;
2948                                 if (fmt->fmt.pix.width <=
2949                                     fh->jpg_settings.img_width / 4)
2950                                         settings.HorDcm = 4;
2951                                 else if (fmt->fmt.pix.width <=
2952                                          fh->jpg_settings.img_width / 2)
2953                                         settings.HorDcm = 2;
2954                                 else
2955                                         settings.HorDcm = 1;
2956                                 if (settings.TmpDcm == 1)
2957                                         settings.field_per_buff = 2;
2958                                 else
2959                                         settings.field_per_buff = 1;
2960
2961                                 /* check */
2962                                 if ((res =
2963                                      zoran_check_jpg_settings(zr,
2964                                                               &settings)))
2965                                         goto sfmtjpg_unlock_and_return;
2966
2967                                 /* it's ok, so set them */
2968                                 fh->jpg_settings = settings;
2969
2970                                 /* tell the user what we actually did */
2971                                 fmt->fmt.pix.width =
2972                                     settings.img_width / settings.HorDcm;
2973                                 fmt->fmt.pix.height =
2974                                     settings.img_height * 2 /
2975                                     (settings.TmpDcm * settings.VerDcm);
2976                                 if (settings.TmpDcm == 1)
2977                                         fmt->fmt.pix.field =
2978                                             (fh->jpg_settings.
2979                                              odd_even ? V4L2_FIELD_SEQ_TB :
2980                                              V4L2_FIELD_SEQ_BT);
2981                                 else
2982                                         fmt->fmt.pix.field =
2983                                             (fh->jpg_settings.
2984                                              odd_even ? V4L2_FIELD_TOP :
2985                                              V4L2_FIELD_BOTTOM);
2986                                 fh->jpg_buffers.buffer_size =
2987                                     zoran_v4l2_calc_bufsize(&fh->
2988                                                             jpg_settings);
2989                                 fmt->fmt.pix.sizeimage =
2990                                     fh->jpg_buffers.buffer_size;
2991
2992                                 /* we hereby abuse this variable to show that
2993                                  * we're gonna do mjpeg capture */
2994                                 fh->map_mode =
2995                                     (fmt->type ==
2996                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2997                                     ZORAN_MAP_MODE_JPG_REC :
2998                                     ZORAN_MAP_MODE_JPG_PLAY;
2999                         sfmtjpg_unlock_and_return:
3000                                 mutex_unlock(&zr->resource_lock);
3001                         } else {
3002                                 for (i = 0; i < zoran_num_formats; i++)
3003                                         if (fmt->fmt.pix.pixelformat ==
3004                                             zoran_formats[i].fourcc)
3005                                                 break;
3006                                 if (i == zoran_num_formats) {
3007                                         dprintk(1,
3008                                                 KERN_ERR
3009                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
3010                                                 ZR_DEVNAME(zr),
3011                                                 fmt->fmt.pix.pixelformat,
3012                                                 (char *) &printformat);
3013                                         return -EINVAL;
3014                                 }
3015                                 mutex_lock(&zr->resource_lock);
3016                                 if (fh->jpg_buffers.allocated ||
3017                                     (fh->v4l_buffers.allocated &&
3018                                      fh->v4l_buffers.active !=
3019                                      ZORAN_FREE)) {
3020                                         dprintk(1,
3021                                                 KERN_ERR
3022                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
3023                                                 ZR_DEVNAME(zr));
3024                                         res = -EBUSY;
3025                                         goto sfmtv4l_unlock_and_return;
3026                                 }
3027                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
3028                                         fmt->fmt.pix.height =
3029                                             BUZ_MAX_HEIGHT;
3030                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
3031                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
3032
3033                                 if ((res =
3034                                      zoran_v4l_set_format(file,
3035                                                           fmt->fmt.pix.
3036                                                           width,
3037                                                           fmt->fmt.pix.
3038                                                           height,
3039                                                           &zoran_formats
3040                                                           [i])))
3041                                         goto sfmtv4l_unlock_and_return;
3042
3043                                 /* tell the user the
3044                                  * results/missing stuff */
3045                                 fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size    /*zr->gbpl * zr->gheight */
3046                                     ;
3047                                 if (BUZ_MAX_HEIGHT <
3048                                     (fh->v4l_settings.height * 2))
3049                                         fmt->fmt.pix.field =
3050                                             V4L2_FIELD_INTERLACED;
3051                                 else
3052                                         fmt->fmt.pix.field =
3053                                             V4L2_FIELD_TOP;
3054
3055                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
3056                         sfmtv4l_unlock_and_return:
3057                                 mutex_unlock(&zr->resource_lock);
3058                         }
3059
3060                         break;
3061
3062                 default:
3063                         dprintk(3, "unsupported\n");
3064                         dprintk(1,
3065                                 KERN_ERR
3066                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3067                                 ZR_DEVNAME(zr), fmt->type);
3068                         return -EINVAL;
3069                 }
3070
3071                 return res;
3072         }
3073                 break;
3074
3075         case VIDIOC_G_FBUF:
3076         {
3077                 struct v4l2_framebuffer *fb = arg;
3078
3079                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3080
3081                 memset(fb, 0, sizeof(*fb));
3082                 mutex_lock(&zr->resource_lock);
3083                 fb->base = zr->buffer.base;
3084                 fb->fmt.width = zr->buffer.width;
3085                 fb->fmt.height = zr->buffer.height;
3086                 if (zr->overlay_settings.format) {
3087                         fb->fmt.pixelformat =
3088                                 fh->overlay_settings.format->fourcc;
3089                 }
3090                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3091                 mutex_unlock(&zr->resource_lock);
3092                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3093                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3094                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3095                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3096
3097                 return 0;
3098         }
3099                 break;
3100
3101         case VIDIOC_S_FBUF:
3102         {
3103                 int i, res = 0;
3104                 struct v4l2_framebuffer *fb = arg;
3105                 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3106
3107                 dprintk(3,
3108                         KERN_DEBUG
3109                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3110                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3111                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3112                         (char *) &printformat);
3113
3114                 for (i = 0; i < zoran_num_formats; i++)
3115                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3116                                 break;
3117                 if (i == zoran_num_formats) {
3118                         dprintk(1,
3119                                 KERN_ERR
3120                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3121                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3122                                 (char *) &printformat);
3123                         return -EINVAL;
3124                 }
3125
3126                 mutex_lock(&zr->resource_lock);
3127                 res =
3128                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3129                                   fb->fmt.width, fb->fmt.height,
3130                                   fb->fmt.bytesperline);
3131                 mutex_unlock(&zr->resource_lock);
3132
3133                 return res;
3134         }
3135                 break;
3136
3137         case VIDIOC_OVERLAY:
3138         {
3139                 int *on = arg, res;
3140
3141                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3142                         ZR_DEVNAME(zr), *on);
3143
3144                 mutex_lock(&zr->resource_lock);
3145                 res = setup_overlay(file, *on);
3146                 mutex_unlock(&zr->resource_lock);
3147
3148                 return res;
3149         }
3150                 break;
3151
3152         case VIDIOC_REQBUFS:
3153         {
3154                 struct v4l2_requestbuffers *req = arg;
3155                 int res = 0;
3156
3157                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3158                         ZR_DEVNAME(zr), req->type);
3159
3160                 if (req->memory != V4L2_MEMORY_MMAP) {
3161                         dprintk(1,
3162                                 KERN_ERR
3163                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3164                                 ZR_DEVNAME(zr), req->memory);
3165                         return -EINVAL;
3166                 }
3167
3168                 mutex_lock(&zr->resource_lock);
3169
3170                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3171                         dprintk(1,
3172                                 KERN_ERR
3173                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3174                                 ZR_DEVNAME(zr));
3175                         res = -EBUSY;
3176                         goto v4l2reqbuf_unlock_and_return;
3177                 }
3178
3179                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3180                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3181
3182                         /* control user input */
3183                         if (req->count < 2)
3184                                 req->count = 2;
3185                         if (req->count > v4l_nbufs)
3186                                 req->count = v4l_nbufs;
3187                         fh->v4l_buffers.num_buffers = req->count;
3188
3189                         if (v4l_fbuffer_alloc(file)) {
3190                                 res = -ENOMEM;
3191                                 goto v4l2reqbuf_unlock_and_return;
3192                         }
3193
3194                         /* The next mmap will map the V4L buffers */
3195                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3196
3197                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3198                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3199
3200                         /* we need to calculate size ourselves now */
3201                         if (req->count < 4)
3202                                 req->count = 4;
3203                         if (req->count > jpg_nbufs)
3204                                 req->count = jpg_nbufs;
3205                         fh->jpg_buffers.num_buffers = req->count;
3206                         fh->jpg_buffers.buffer_size =
3207                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3208
3209                         if (jpg_fbuffer_alloc(file)) {
3210                                 res = -ENOMEM;
3211                                 goto v4l2reqbuf_unlock_and_return;
3212                         }
3213
3214                         /* The next mmap will map the MJPEG buffers */
3215                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3216                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3217                         else
3218                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3219
3220                 } else {
3221                         dprintk(1,
3222                                 KERN_ERR
3223                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3224                                 ZR_DEVNAME(zr), req->type);
3225                         res = -EINVAL;
3226                         goto v4l2reqbuf_unlock_and_return;
3227                 }
3228         v4l2reqbuf_unlock_and_return:
3229                 mutex_unlock(&zr->resource_lock);
3230
3231                 return 0;
3232         }
3233                 break;
3234
3235         case VIDIOC_QUERYBUF:
3236         {
3237                 struct v4l2_buffer *buf = arg;
3238                 __u32 type = buf->type;
3239                 int index = buf->index, res;
3240
3241                 dprintk(3,
3242                         KERN_DEBUG
3243                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3244                         ZR_DEVNAME(zr), buf->index, buf->type);
3245
3246                 memset(buf, 0, sizeof(buf));
3247                 buf->type = type;
3248                 buf->index = index;
3249
3250                 mutex_lock(&zr->resource_lock);
3251                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3252                 mutex_unlock(&zr->resource_lock);
3253
3254                 return res;
3255         }
3256                 break;
3257
3258         case VIDIOC_QBUF:
3259         {
3260                 struct v4l2_buffer *buf = arg;
3261                 int res = 0, codec_mode, buf_type;
3262
3263                 dprintk(3,
3264                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3265                         ZR_DEVNAME(zr), buf->type, buf->index);
3266
3267                 mutex_lock(&zr->resource_lock);
3268
3269                 switch (fh->map_mode) {
3270                 case ZORAN_MAP_MODE_RAW:
3271                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3272                                 dprintk(1,
3273                                         KERN_ERR
3274                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3275                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3276                                 res = -EINVAL;
3277                                 goto qbuf_unlock_and_return;
3278                         }
3279
3280                         res = zoran_v4l_queue_frame(file, buf->index);
3281                         if (res)
3282                                 goto qbuf_unlock_and_return;
3283                         if (!zr->v4l_memgrab_active &&
3284                             fh->v4l_buffers.active == ZORAN_LOCKED)
3285                                 zr36057_set_memgrab(zr, 1);
3286                         break;
3287
3288                 case ZORAN_MAP_MODE_JPG_REC:
3289                 case ZORAN_MAP_MODE_JPG_PLAY:
3290                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3291                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3292                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3293                         } else {
3294                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3295                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3296                         }
3297
3298                         if (buf->type != buf_type) {
3299                                 dprintk(1,
3300                                         KERN_ERR
3301                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3302                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3303                                 res = -EINVAL;
3304                                 goto qbuf_unlock_and_return;
3305                         }
3306
3307                         res =
3308                             zoran_jpg_queue_frame(file, buf->index,
3309                                                   codec_mode);
3310                         if (res != 0)
3311                                 goto qbuf_unlock_and_return;
3312                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3313                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3314                                 zr36057_enable_jpg(zr, codec_mode);
3315                         }
3316                         break;
3317
3318                 default:
3319                         dprintk(1,
3320                                 KERN_ERR
3321                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3322                                 ZR_DEVNAME(zr), buf->type);
3323                         res = -EINVAL;
3324                         goto qbuf_unlock_and_return;
3325                 }
3326         qbuf_unlock_and_return:
3327                 mutex_unlock(&zr->resource_lock);
3328
3329                 return res;
3330         }
3331                 break;
3332
3333         case VIDIOC_DQBUF:
3334         {
3335                 struct v4l2_buffer *buf = arg;
3336                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3337
3338                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3339                         ZR_DEVNAME(zr), buf->type);
3340
3341                 mutex_lock(&zr->resource_lock);
3342
3343                 switch (fh->map_mode) {
3344                 case ZORAN_MAP_MODE_RAW:
3345                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3346                                 dprintk(1,
3347                                         KERN_ERR
3348                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3349                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3350                                 res = -EINVAL;
3351                                 goto dqbuf_unlock_and_return;
3352                         }
3353
3354                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3355                         if (file->f_flags & O_NONBLOCK &&
3356                             zr->v4l_buffers.buffer[num].state !=
3357                             BUZ_STATE_DONE) {
3358                                 res = -EAGAIN;
3359                                 goto dqbuf_unlock_and_return;
3360                         }
3361                         res = v4l_sync(file, num);
3362                         if (res)
3363                                 goto dqbuf_unlock_and_return;
3364                         else
3365                                 zr->v4l_sync_tail++;
3366                         res = zoran_v4l2_buffer_status(file, buf, num);
3367                         break;
3368
3369                 case ZORAN_MAP_MODE_JPG_REC:
3370                 case ZORAN_MAP_MODE_JPG_PLAY:
3371                 {
3372                         struct zoran_sync bs;
3373
3374                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3375                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3376                         else
3377                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3378
3379                         if (buf->type != buf_type) {
3380                                 dprintk(1,
3381                                         KERN_ERR
3382                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3383                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3384                                 res = -EINVAL;
3385                                 goto dqbuf_unlock_and_return;
3386                         }
3387
3388                         num =
3389                             zr->jpg_pend[zr->
3390                                          jpg_que_tail & BUZ_MASK_FRAME];
3391
3392                         if (file->f_flags & O_NONBLOCK &&
3393                             zr->jpg_buffers.buffer[num].state !=
3394                             BUZ_STATE_DONE) {
3395                                 res = -EAGAIN;
3396                                 goto dqbuf_unlock_and_return;
3397                         }
3398                         res = jpg_sync(file, &bs);
3399                         if (res)
3400                                 goto dqbuf_unlock_and_return;
3401                         res =
3402                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3403                         break;
3404                 }
3405
3406                 default:
3407                         dprintk(1,
3408                                 KERN_ERR
3409                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3410                                 ZR_DEVNAME(zr), buf->type);
3411                         res = -EINVAL;
3412                         goto dqbuf_unlock_and_return;
3413                 }
3414         dqbuf_unlock_and_return:
3415                 mutex_unlock(&zr->resource_lock);
3416
3417                 return res;
3418         }
3419                 break;
3420
3421         case VIDIOC_STREAMON:
3422         {
3423                 int res = 0;
3424
3425                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3426
3427                 mutex_lock(&zr->resource_lock);
3428
3429                 switch (fh->map_mode) {
3430                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3431                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3432                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3433                                 res = -EBUSY;
3434                                 goto strmon_unlock_and_return;
3435                         }
3436
3437                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3438                             ZORAN_LOCKED;
3439                         zr->v4l_settings = fh->v4l_settings;
3440
3441                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3442                         if (!zr->v4l_memgrab_active &&
3443                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3444                                 zr36057_set_memgrab(zr, 1);
3445                         }
3446                         break;
3447
3448                 case ZORAN_MAP_MODE_JPG_REC:
3449                 case ZORAN_MAP_MODE_JPG_PLAY:
3450                         /* what is the codec mode right now? */
3451                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3452                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3453                                 res = -EBUSY;
3454                                 goto strmon_unlock_and_return;
3455                         }
3456
3457                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3458                             ZORAN_LOCKED;
3459
3460                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3461                                 /* Start the jpeg codec when the first frame is queued  */
3462                                 jpeg_start(zr);
3463                         }
3464
3465                         break;
3466                 default:
3467                         dprintk(1,
3468                                 KERN_ERR
3469                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3470                                 ZR_DEVNAME(zr), fh->map_mode);
3471                         res = -EINVAL;
3472                         goto strmon_unlock_and_return;
3473                 }
3474         strmon_unlock_and_return:
3475                 mutex_unlock(&zr->resource_lock);
3476
3477                 return res;
3478         }
3479                 break;
3480
3481         case VIDIOC_STREAMOFF:
3482         {
3483                 int i, res = 0;
3484
3485                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3486
3487                 mutex_lock(&zr->resource_lock);
3488
3489                 switch (fh->map_mode) {
3490                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3491                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3492                             zr->v4l_buffers.active != ZORAN_FREE) {
3493                                 res = -EPERM;   /* stay off other's settings! */
3494                                 goto strmoff_unlock_and_return;
3495                         }
3496                         if (zr->v4l_buffers.active == ZORAN_FREE)
3497                                 goto strmoff_unlock_and_return;
3498
3499                         /* unload capture */
3500                         if (zr->v4l_memgrab_active)
3501                                 zr36057_set_memgrab(zr, 0);
3502
3503                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3504                                 zr->v4l_buffers.buffer[i].state =
3505                                     BUZ_STATE_USER;
3506                         fh->v4l_buffers = zr->v4l_buffers;
3507
3508                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3509                             ZORAN_FREE;
3510
3511                         zr->v4l_grab_seq = 0;
3512                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3513                         zr->v4l_sync_tail = 0;
3514
3515                         break;
3516
3517                 case ZORAN_MAP_MODE_JPG_REC:
3518                 case ZORAN_MAP_MODE_JPG_PLAY:
3519                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3520                             zr->jpg_buffers.active != ZORAN_FREE) {
3521                                 res = -EPERM;   /* stay off other's settings! */
3522                                 goto strmoff_unlock_and_return;
3523                         }
3524                         if (zr->jpg_buffers.active == ZORAN_FREE)
3525                                 goto strmoff_unlock_and_return;
3526
3527                         res =
3528                             jpg_qbuf(file, -1,
3529                                      (fh->map_mode ==
3530                                       ZORAN_MAP_MODE_JPG_REC) ?
3531                                      BUZ_MODE_MOTION_COMPRESS :
3532                                      BUZ_MODE_MOTION_DECOMPRESS);
3533                         if (res)
3534                                 goto strmoff_unlock_and_return;
3535                         break;
3536                 default:
3537                         dprintk(1,
3538                                 KERN_ERR
3539                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3540                                 ZR_DEVNAME(zr), fh->map_mode);
3541                         res = -EINVAL;
3542                         goto strmoff_unlock_and_return;
3543                 }
3544         strmoff_unlock_and_return:
3545                 mutex_unlock(&zr->resource_lock);
3546
3547                 return res;
3548         }
3549                 break;
3550
3551         case VIDIOC_QUERYCTRL:
3552         {
3553                 struct v4l2_queryctrl *ctrl = arg;
3554
3555                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3556                         ZR_DEVNAME(zr), ctrl->id);
3557
3558                 /* we only support hue/saturation/contrast/brightness */
3559                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3560                     ctrl->id > V4L2_CID_HUE)
3561                         return -EINVAL;
3562                 else {
3563                         int id = ctrl->id;
3564                         memset(ctrl, 0, sizeof(*ctrl));
3565                         ctrl->id = id;
3566                 }
3567
3568                 switch (ctrl->id) {
3569                 case V4L2_CID_BRIGHTNESS:
3570                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3571                         break;
3572                 case V4L2_CID_CONTRAST:
3573                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3574                         break;
3575                 case V4L2_CID_SATURATION:
3576                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3577                         break;
3578                 case V4L2_CID_HUE:
3579                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3580                         break;
3581                 }
3582
3583                 ctrl->minimum = 0;
3584                 ctrl->maximum = 65535;
3585                 ctrl->step = 1;
3586                 ctrl->default_value = 32768;
3587                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3588
3589                 return 0;
3590         }
3591                 break;
3592
3593         case VIDIOC_G_CTRL:
3594         {
3595                 struct v4l2_control *ctrl = arg;
3596
3597                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3598                         ZR_DEVNAME(zr), ctrl->id);
3599
3600                 /* we only support hue/saturation/contrast/brightness */
3601                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3602                     ctrl->id > V4L2_CID_HUE)
3603                         return -EINVAL;
3604
3605                 mutex_lock(&zr->resource_lock);
3606                 switch (ctrl->id) {
3607                 case V4L2_CID_BRIGHTNESS:
3608                         ctrl->value = zr->brightness;
3609                         break;
3610                 case V4L2_CID_CONTRAST:
3611                         ctrl->value = zr->contrast;
3612                         break;
3613                 case V4L2_CID_SATURATION:
3614                         ctrl->value = zr->saturation;
3615                         break;
3616                 case V4L2_CID_HUE:
3617                         ctrl->value = zr->hue;
3618                         break;
3619                 }
3620                 mutex_unlock(&zr->resource_lock);
3621
3622                 return 0;
3623         }
3624                 break;
3625
3626         case VIDIOC_S_CTRL:
3627         {
3628                 struct v4l2_control *ctrl = arg;
3629                 struct video_picture pict;
3630
3631                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3632                         ZR_DEVNAME(zr), ctrl->id);
3633
3634                 /* we only support hue/saturation/contrast/brightness */
3635                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3636                     ctrl->id > V4L2_CID_HUE)
3637                         return -EINVAL;
3638
3639                 if (ctrl->value < 0 || ctrl->value > 65535) {
3640                         dprintk(1,
3641                                 KERN_ERR
3642                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3643                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3644                         return -EINVAL;
3645                 }
3646
3647                 mutex_lock(&zr->resource_lock);
3648                 switch (ctrl->id) {
3649                 case V4L2_CID_BRIGHTNESS:
3650                         zr->brightness = ctrl->value;
3651                         break;
3652                 case V4L2_CID_CONTRAST:
3653                         zr->contrast = ctrl->value;
3654                         break;
3655                 case V4L2_CID_SATURATION:
3656                         zr->saturation = ctrl->value;
3657                         break;
3658                 case V4L2_CID_HUE:
3659                         zr->hue = ctrl->value;
3660                         break;
3661                 }
3662                 pict.brightness = zr->brightness;
3663                 pict.contrast = zr->contrast;
3664                 pict.colour = zr->saturation;
3665                 pict.hue = zr->hue;
3666
3667                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3668
3669                 mutex_unlock(&zr->resource_lock);
3670
3671                 return 0;
3672         }
3673                 break;
3674
3675         case VIDIOC_ENUMSTD:
3676         {
3677                 struct v4l2_standard *std = arg;
3678
3679                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3680                         ZR_DEVNAME(zr), std->index);
3681
3682                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3683                         return -EINVAL;
3684                 else {
3685                         int id = std->index;
3686                         memset(std, 0, sizeof(*std));
3687                         std->index = id;
3688                 }
3689
3690                 if (std->index == zr->card.norms) {
3691                         /* if we have autodetect, ... */
3692                         struct video_decoder_capability caps;
3693                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3694                                         &caps);
3695                         if (caps.flags & VIDEO_DECODER_AUTO) {
3696                                 std->id = V4L2_STD_ALL;
3697                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3698                                 return 0;
3699                         } else
3700                                 return -EINVAL;
3701                 }
3702                 switch (std->index) {
3703                 case 0:
3704                         std->id = V4L2_STD_PAL;
3705                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3706                         std->frameperiod.numerator = 1;
3707                         std->frameperiod.denominator = 25;
3708                         std->framelines = zr->card.tvn[0]->Ht;
3709                         break;
3710                 case 1:
3711                         std->id = V4L2_STD_NTSC;
3712                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3713                         std->frameperiod.numerator = 1001;
3714                         std->frameperiod.denominator = 30000;
3715                         std->framelines = zr->card.tvn[1]->Ht;
3716                         break;
3717                 case 2:
3718                         std->id = V4L2_STD_SECAM;
3719                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3720                         std->frameperiod.numerator = 1;
3721                         std->frameperiod.denominator = 25;
3722                         std->framelines = zr->card.tvn[2]->Ht;
3723                         break;
3724                 }
3725
3726                 return 0;
3727         }
3728                 break;
3729
3730         case VIDIOC_G_STD:
3731         {
3732                 v4l2_std_id *std = arg;
3733                 int norm;
3734
3735                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3736
3737                 mutex_lock(&zr->resource_lock);
3738                 norm = zr->norm;
3739                 mutex_unlock(&zr->resource_lock);
3740
3741                 switch (norm) {
3742                 case VIDEO_MODE_PAL:
3743                         *std = V4L2_STD_PAL;
3744                         break;
3745                 case VIDEO_MODE_NTSC:
3746                         *std = V4L2_STD_NTSC;
3747                         break;
3748                 case VIDEO_MODE_SECAM:
3749                         *std = V4L2_STD_SECAM;
3750                         break;
3751                 }
3752
3753                 return 0;
3754         }
3755                 break;
3756
3757         case VIDIOC_S_STD:
3758         {
3759                 int norm = -1, res = 0;
3760                 v4l2_std_id *std = arg;
3761
3762                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3763                         ZR_DEVNAME(zr), (unsigned long long)*std);
3764
3765                 if (*std == V4L2_STD_PAL)
3766                         norm = VIDEO_MODE_PAL;
3767                 else if (*std == V4L2_STD_NTSC)
3768                         norm = VIDEO_MODE_NTSC;
3769                 else if (*std == V4L2_STD_SECAM)
3770                         norm = VIDEO_MODE_SECAM;
3771                 else if (*std == V4L2_STD_ALL)
3772                         norm = VIDEO_MODE_AUTO;
3773                 else {
3774                         dprintk(1,
3775                                 KERN_ERR
3776                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3777                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3778                         return -EINVAL;
3779                 }
3780
3781                 mutex_lock(&zr->resource_lock);
3782                 if ((res = zoran_set_norm(zr, norm)))
3783                         goto sstd_unlock_and_return;
3784
3785                 res = wait_grab_pending(zr);
3786         sstd_unlock_and_return:
3787                 mutex_unlock(&zr->resource_lock);
3788                 return res;
3789         }
3790                 break;
3791
3792         case VIDIOC_ENUMINPUT:
3793         {
3794                 struct v4l2_input *inp = arg;
3795                 int status;
3796
3797                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3798                         ZR_DEVNAME(zr), inp->index);
3799
3800                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3801                         return -EINVAL;
3802                 else {
3803                         int id = inp->index;
3804                         memset(inp, 0, sizeof(*inp));
3805                         inp->index = id;
3806                 }
3807
3808                 strncpy(inp->name, zr->card.input[inp->index].name,
3809                         sizeof(inp->name) - 1);
3810                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3811                 inp->std = V4L2_STD_ALL;
3812
3813                 /* Get status of video decoder */
3814                 mutex_lock(&zr->resource_lock);
3815                 decoder_command(zr, DECODER_GET_STATUS, &status);
3816                 mutex_unlock(&zr->resource_lock);
3817
3818                 if (!(status & DECODER_STATUS_GOOD)) {
3819                         inp->status |= V4L2_IN_ST_NO_POWER;
3820                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3821                 }
3822                 if (!(status & DECODER_STATUS_COLOR))
3823                         inp->status |= V4L2_IN_ST_NO_COLOR;
3824
3825                 return 0;
3826         }
3827                 break;
3828
3829         case VIDIOC_G_INPUT:
3830         {
3831                 int *input = arg;
3832
3833                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3834
3835                 mutex_lock(&zr->resource_lock);
3836                 *input = zr->input;
3837                 mutex_unlock(&zr->resource_lock);
3838
3839                 return 0;
3840         }
3841                 break;
3842
3843         case VIDIOC_S_INPUT:
3844         {
3845                 int *input = arg, res = 0;
3846
3847                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3848                         ZR_DEVNAME(zr), *input);
3849
3850                 mutex_lock(&zr->resource_lock);
3851                 if ((res = zoran_set_input(zr, *input)))
3852                         goto sinput_unlock_and_return;
3853
3854                 /* Make sure the changes come into effect */
3855                 res = wait_grab_pending(zr);
3856         sinput_unlock_and_return:
3857                 mutex_unlock(&zr->resource_lock);
3858                 return res;
3859         }
3860                 break;
3861
3862         case VIDIOC_ENUMOUTPUT:
3863         {
3864                 struct v4l2_output *outp = arg;
3865
3866                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3867                         ZR_DEVNAME(zr), outp->index);
3868
3869                 if (outp->index != 0)
3870                         return -EINVAL;
3871
3872                 memset(outp, 0, sizeof(*outp));
3873                 outp->index = 0;
3874                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3875                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3876
3877                 return 0;
3878         }
3879                 break;
3880
3881         case VIDIOC_G_OUTPUT:
3882         {
3883                 int *output = arg;
3884
3885                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3886
3887                 *output = 0;
3888
3889                 return 0;
3890         }
3891                 break;
3892
3893         case VIDIOC_S_OUTPUT:
3894         {
3895                 int *output = arg;
3896
3897                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3898                         ZR_DEVNAME(zr), *output);
3899
3900                 if (*output != 0)
3901                         return -EINVAL;
3902
3903                 return 0;
3904         }
3905                 break;
3906
3907                 /* cropping (sub-frame capture) */
3908         case VIDIOC_CROPCAP:
3909         {
3910                 struct v4l2_cropcap *cropcap = arg;
3911                 int type = cropcap->type, res = 0;
3912
3913                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3914                         ZR_DEVNAME(zr), cropcap->type);
3915
3916                 memset(cropcap, 0, sizeof(*cropcap));
3917                 cropcap->type = type;
3918
3919                 mutex_lock(&zr->resource_lock);
3920
3921                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3922                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3923                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3924                         dprintk(1,
3925                                 KERN_ERR
3926                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3927                                 ZR_DEVNAME(zr));
3928                         res = -EINVAL;
3929                         goto cropcap_unlock_and_return;
3930                 }
3931
3932                 cropcap->bounds.top = cropcap->bounds.left = 0;
3933                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3934                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3935                 cropcap->defrect.top = cropcap->defrect.left = 0;
3936                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3937                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3938         cropcap_unlock_and_return:
3939                 mutex_unlock(&zr->resource_lock);
3940                 return res;
3941         }
3942                 break;
3943
3944         case VIDIOC_G_CROP:
3945         {
3946                 struct v4l2_crop *crop = arg;
3947                 int type = crop->type, res = 0;
3948
3949                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3950                         ZR_DEVNAME(zr), crop->type);
3951
3952                 memset(crop, 0, sizeof(*crop));
3953                 crop->type = type;
3954
3955                 mutex_lock(&zr->resource_lock);
3956
3957                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3958                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3959                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3960                         dprintk(1,
3961                                 KERN_ERR
3962                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3963                                 ZR_DEVNAME(zr));
3964                         res = -EINVAL;
3965                         goto gcrop_unlock_and_return;
3966                 }
3967
3968                 crop->c.top = fh->jpg_settings.img_y;
3969                 crop->c.left = fh->jpg_settings.img_x;
3970                 crop->c.width = fh->jpg_settings.img_width;
3971                 crop->c.height = fh->jpg_settings.img_height;
3972
3973         gcrop_unlock_and_return:
3974                 mutex_unlock(&zr->resource_lock);
3975
3976                 return res;
3977         }
3978                 break;
3979
3980         case VIDIOC_S_CROP:
3981         {
3982                 struct v4l2_crop *crop = arg;
3983                 int res = 0;
3984
3985                 settings = fh->jpg_settings;
3986
3987                 dprintk(3,
3988                         KERN_ERR
3989                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3990                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3991                         crop->c.width, crop->c.height);
3992
3993                 mutex_lock(&zr->resource_lock);
3994
3995                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3996                         dprintk(1,
3997                                 KERN_ERR
3998                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3999                                 ZR_DEVNAME(zr));
4000                         res = -EBUSY;
4001                         goto scrop_unlock_and_return;
4002                 }
4003
4004                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
4005                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
4006                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
4007                         dprintk(1,
4008                                 KERN_ERR
4009                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
4010                                 ZR_DEVNAME(zr));
4011                         res = -EINVAL;
4012                         goto scrop_unlock_and_return;
4013                 }
4014
4015                 /* move into a form that we understand */
4016                 settings.img_x = crop->c.left;
4017                 settings.img_y = crop->c.top;
4018                 settings.img_width = crop->c.width;
4019                 settings.img_height = crop->c.height;
4020
4021                 /* check validity */
4022                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4023                         goto scrop_unlock_and_return;
4024
4025                 /* accept */
4026                 fh->jpg_settings = settings;
4027
4028         scrop_unlock_and_return:
4029                 mutex_unlock(&zr->resource_lock);
4030                 return res;
4031         }
4032                 break;
4033
4034         case VIDIOC_G_JPEGCOMP:
4035         {
4036                 struct v4l2_jpegcompression *params = arg;
4037
4038                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
4039                         ZR_DEVNAME(zr));
4040
4041                 memset(params, 0, sizeof(*params));
4042
4043                 mutex_lock(&zr->resource_lock);
4044
4045                 params->quality = fh->jpg_settings.jpg_comp.quality;
4046                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
4047                 memcpy(params->APP_data,
4048                        fh->jpg_settings.jpg_comp.APP_data,
4049                        fh->jpg_settings.jpg_comp.APP_len);
4050                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
4051                 memcpy(params->COM_data,
4052                        fh->jpg_settings.jpg_comp.COM_data,
4053                        fh->jpg_settings.jpg_comp.COM_len);
4054                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
4055                 params->jpeg_markers =
4056                     fh->jpg_settings.jpg_comp.jpeg_markers;
4057
4058                 mutex_unlock(&zr->resource_lock);
4059
4060                 return 0;
4061         }
4062                 break;
4063
4064         case VIDIOC_S_JPEGCOMP:
4065         {
4066                 struct v4l2_jpegcompression *params = arg;
4067                 int res = 0;
4068
4069                 settings = fh->jpg_settings;
4070
4071                 dprintk(3,
4072                         KERN_DEBUG
4073                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4074                         ZR_DEVNAME(zr), params->quality, params->APPn,
4075                         params->APP_len, params->COM_len);
4076
4077                 settings.jpg_comp = *params;
4078
4079                 mutex_lock(&zr->resource_lock);
4080
4081                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4082                     fh->jpg_buffers.active != ZORAN_FREE) {
4083                         dprintk(1,
4084                                 KERN_WARNING
4085                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4086                                 ZR_DEVNAME(zr));
4087                         res = -EBUSY;
4088                         goto sjpegc_unlock_and_return;
4089                 }
4090
4091                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4092                         goto sjpegc_unlock_and_return;
4093                 if (!fh->jpg_buffers.allocated)
4094                         fh->jpg_buffers.buffer_size =
4095                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4096                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4097         sjpegc_unlock_and_return:
4098                 mutex_unlock(&zr->resource_lock);
4099
4100                 return 0;
4101         }
4102                 break;
4103
4104         case VIDIOC_QUERYSTD:   /* why is this useful? */
4105         {
4106                 v4l2_std_id *std = arg;
4107
4108                 dprintk(3,
4109                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4110                         ZR_DEVNAME(zr), (unsigned long long)*std);
4111
4112                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4113                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4114                                              zr->card.norms == 3)) {
4115                         return 0;
4116                 }
4117
4118                 return -EINVAL;
4119         }
4120                 break;
4121
4122         case VIDIOC_TRY_FMT:
4123         {
4124                 struct v4l2_format *fmt = arg;
4125                 int res = 0;
4126
4127                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4128                         ZR_DEVNAME(zr), fmt->type);
4129
4130                 switch (fmt->type) {
4131                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4132                         mutex_lock(&zr->resource_lock);
4133
4134                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4135                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4136                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4137                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4138                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4139                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4140                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4141                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4142
4143                         mutex_unlock(&zr->resource_lock);
4144                         break;
4145
4146                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4147                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4148                         if (fmt->fmt.pix.bytesperline > 0)
4149                                 return -EINVAL;
4150
4151                         mutex_lock(&zr->resource_lock);
4152
4153                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4154                                 settings = fh->jpg_settings;
4155
4156                                 /* we actually need to set 'real' parameters now */
4157                                 if ((fmt->fmt.pix.height * 2) >
4158                                     BUZ_MAX_HEIGHT)
4159                                         settings.TmpDcm = 1;
4160                                 else
4161                                         settings.TmpDcm = 2;
4162                                 settings.decimation = 0;
4163                                 if (fmt->fmt.pix.height <=
4164                                     fh->jpg_settings.img_height / 2)
4165                                         settings.VerDcm = 2;
4166                                 else
4167                                         settings.VerDcm = 1;
4168                                 if (fmt->fmt.pix.width <=
4169                                     fh->jpg_settings.img_width / 4)
4170                                         settings.HorDcm = 4;
4171                                 else if (fmt->fmt.pix.width <=
4172                                          fh->jpg_settings.img_width / 2)
4173                                         settings.HorDcm = 2;
4174                                 else
4175                                         settings.HorDcm = 1;
4176                                 if (settings.TmpDcm == 1)
4177                                         settings.field_per_buff = 2;
4178                                 else
4179                                         settings.field_per_buff = 1;
4180
4181                                 /* check */
4182                                 if ((res =
4183                                      zoran_check_jpg_settings(zr,
4184                                                               &settings)))
4185                                         goto tryfmt_unlock_and_return;
4186
4187                                 /* tell the user what we actually did */
4188                                 fmt->fmt.pix.width =
4189                                     settings.img_width / settings.HorDcm;
4190                                 fmt->fmt.pix.height =
4191                                     settings.img_height * 2 /
4192                                     (settings.TmpDcm * settings.VerDcm);
4193                                 if (settings.TmpDcm == 1)
4194                                         fmt->fmt.pix.field =
4195                                             (fh->jpg_settings.
4196                                              odd_even ? V4L2_FIELD_SEQ_TB :
4197                                              V4L2_FIELD_SEQ_BT);
4198                                 else
4199                                         fmt->fmt.pix.field =
4200                                             (fh->jpg_settings.
4201                                              odd_even ? V4L2_FIELD_TOP :
4202                                              V4L2_FIELD_BOTTOM);
4203
4204                                 fmt->fmt.pix.sizeimage =
4205                                     zoran_v4l2_calc_bufsize(&settings);
4206                         } else if (fmt->type ==
4207                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4208                                 int i;
4209
4210                                 for (i = 0; i < zoran_num_formats; i++)
4211                                         if (zoran_formats[i].fourcc ==
4212                                             fmt->fmt.pix.pixelformat)
4213                                                 break;
4214                                 if (i == zoran_num_formats) {
4215                                         res = -EINVAL;
4216                                         goto tryfmt_unlock_and_return;
4217                                 }
4218
4219                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4220                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4221                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4222                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4223                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4224                                         fmt->fmt.pix.height =
4225                                             BUZ_MAX_HEIGHT;
4226                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4227                                         fmt->fmt.pix.height =
4228                                             BUZ_MIN_HEIGHT;
4229                         } else {
4230                                 res = -EINVAL;
4231                                 goto tryfmt_unlock_and_return;
4232                         }
4233                 tryfmt_unlock_and_return:
4234                         mutex_unlock(&zr->resource_lock);
4235
4236                         return res;
4237                         break;
4238
4239                 default:
4240                         return -EINVAL;
4241                 }
4242
4243                 return 0;
4244         }
4245                 break;
4246 #endif
4247
4248         default:
4249                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4250                         ZR_DEVNAME(zr), cmd);
4251                 return -ENOIOCTLCMD;
4252                 break;
4253
4254         }
4255         return 0;
4256 }
4257
4258
4259 static int
4260 zoran_ioctl (struct inode *inode,
4261              struct file  *file,
4262              unsigned int  cmd,
4263              unsigned long arg)
4264 {
4265         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4266 }
4267
4268 static unsigned int
4269 zoran_poll (struct file *file,
4270             poll_table  *wait)
4271 {
4272         struct zoran_fh *fh = file->private_data;
4273         struct zoran *zr = fh->zr;
4274         wait_queue_head_t *queue = NULL;
4275         int res = 0, frame;
4276
4277         /* we should check whether buffers are ready to be synced on
4278          * (w/o waits - O_NONBLOCK) here
4279          * if ready for read (sync), return POLLIN|POLLRDNORM,
4280          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4281          * if error, return POLLERR,
4282          * if no buffers queued or so, return POLLNVAL
4283          */
4284
4285         mutex_lock(&zr->resource_lock);
4286
4287         switch (fh->map_mode) {
4288         case ZORAN_MAP_MODE_RAW:
4289                 if (fh->v4l_buffers.active == ZORAN_FREE ||
4290                     zr->v4l_pend_head == zr->v4l_pend_tail) {
4291                         dprintk(1,
4292                                 "%s: zoran_poll() - no buffers queued\n",
4293                                 ZR_DEVNAME(zr));
4294                         res = POLLNVAL;
4295                         goto poll_unlock_and_return;
4296                 }
4297                 queue = &zr->v4l_capq;
4298                 frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
4299                 poll_wait(file, queue, wait);
4300                 if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4301                         res = POLLIN | POLLRDNORM;
4302                 break;
4303
4304         case ZORAN_MAP_MODE_JPG_REC:
4305         case ZORAN_MAP_MODE_JPG_PLAY:
4306                 if (fh->jpg_buffers.active == ZORAN_FREE ||
4307                     zr->jpg_que_head == zr->jpg_que_tail) {
4308                         dprintk(1,
4309                                 "%s: zoran_poll() - no buffers queued\n",
4310                                 ZR_DEVNAME(zr));
4311                         res = POLLNVAL;
4312                         goto poll_unlock_and_return;
4313                 }
4314                 queue = &zr->jpg_capq;
4315                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4316                 poll_wait(file, queue, wait);
4317                 if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4318                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4319                                 res = POLLIN | POLLRDNORM;
4320                         else
4321                                 res = POLLOUT | POLLWRNORM;
4322                 }
4323                 break;
4324
4325         default:
4326                 dprintk(1,
4327                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4328                         ZR_DEVNAME(zr), fh->map_mode);
4329                 res = POLLNVAL;
4330                 goto poll_unlock_and_return;
4331         }
4332
4333 poll_unlock_and_return:
4334         mutex_unlock(&zr->resource_lock);
4335
4336         return res;
4337 }
4338
4339
4340 /*
4341  * This maps the buffers to user space.
4342  *
4343  * Depending on the state of fh->map_mode
4344  * the V4L or the MJPEG buffers are mapped
4345  * per buffer or all together
4346  *
4347  * Note that we need to connect to some
4348  * unmap signal event to unmap the de-allocate
4349  * the buffer accordingly (zoran_vm_close())
4350  */
4351
4352 static void
4353 zoran_vm_open (struct vm_area_struct *vma)
4354 {
4355         struct zoran_mapping *map = vma->vm_private_data;
4356
4357         map->count++;
4358 }
4359
4360 static void
4361 zoran_vm_close (struct vm_area_struct *vma)
4362 {
4363         struct zoran_mapping *map = vma->vm_private_data;
4364         struct file *file = map->file;
4365         struct zoran_fh *fh = file->private_data;
4366         struct zoran *zr = fh->zr;
4367         int i;
4368
4369         map->count--;
4370         if (map->count == 0) {
4371                 switch (fh->map_mode) {
4372                 case ZORAN_MAP_MODE_JPG_REC:
4373                 case ZORAN_MAP_MODE_JPG_PLAY:
4374
4375                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4376                                 ZR_DEVNAME(zr));
4377
4378                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4379                                 if (fh->jpg_buffers.buffer[i].map == map) {
4380                                         fh->jpg_buffers.buffer[i].map =
4381                                             NULL;
4382                                 }
4383                         }
4384                         kfree(map);
4385
4386                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4387                                 if (fh->jpg_buffers.buffer[i].map)
4388                                         break;
4389                         if (i == fh->jpg_buffers.num_buffers) {
4390                                 mutex_lock(&zr->resource_lock);
4391
4392                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4393                                         jpg_qbuf(file, -1, zr->codec_mode);
4394                                         zr->jpg_buffers.allocated = 0;
4395                                         zr->jpg_buffers.active =
4396                                             fh->jpg_buffers.active =
4397                                             ZORAN_FREE;
4398                                 }
4399                                 //jpg_fbuffer_free(file);
4400                                 fh->jpg_buffers.allocated = 0;
4401                                 fh->jpg_buffers.ready_to_be_freed = 1;
4402
4403                                 mutex_unlock(&zr->resource_lock);
4404                         }
4405
4406                         break;
4407
4408                 case ZORAN_MAP_MODE_RAW:
4409
4410                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4411                                 ZR_DEVNAME(zr));
4412
4413                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4414                                 if (fh->v4l_buffers.buffer[i].map == map) {
4415                                         /* unqueue/unmap */
4416                                         fh->v4l_buffers.buffer[i].map =
4417                                             NULL;
4418                                 }
4419                         }
4420                         kfree(map);
4421
4422                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4423                                 if (fh->v4l_buffers.buffer[i].map)
4424                                         break;
4425                         if (i == fh->v4l_buffers.num_buffers) {
4426                                 mutex_lock(&zr->resource_lock);
4427
4428                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4429                                         zr36057_set_memgrab(zr, 0);
4430                                         zr->v4l_buffers.allocated = 0;
4431                                         zr->v4l_buffers.active =
4432                                             fh->v4l_buffers.active =
4433                                             ZORAN_FREE;
4434                                 }
4435                                 //v4l_fbuffer_free(file);
4436                                 fh->v4l_buffers.allocated = 0;
4437                                 fh->v4l_buffers.ready_to_be_freed = 1;
4438
4439                                 mutex_unlock(&zr->resource_lock);
4440                         }
4441
4442                         break;
4443
4444                 default:
4445                         printk(KERN_ERR
4446                                "%s: munmap() - internal error - unknown map mode %d\n",
4447                                ZR_DEVNAME(zr), fh->map_mode);
4448                         break;
4449
4450                 }
4451         }
4452 }
4453
4454 static struct vm_operations_struct zoran_vm_ops = {
4455         .open = zoran_vm_open,
4456         .close = zoran_vm_close,
4457 };
4458
4459 static int
4460 zoran_mmap (struct file           *file,
4461             struct vm_area_struct *vma)
4462 {
4463         struct zoran_fh *fh = file->private_data;
4464         struct zoran *zr = fh->zr;
4465         unsigned long size = (vma->vm_end - vma->vm_start);
4466         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4467         int i, j;
4468         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4469         int first, last;
4470         struct zoran_mapping *map;
4471         int res = 0;
4472
4473         dprintk(3,
4474                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4475                 ZR_DEVNAME(zr),
4476                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4477                 vma->vm_start, vma->vm_end, size);
4478
4479         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4480             !(vma->vm_flags & VM_WRITE)) {
4481                 dprintk(1,
4482                         KERN_ERR
4483                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4484                         ZR_DEVNAME(zr));
4485                 return -EINVAL;
4486         }
4487
4488         switch (fh->map_mode) {
4489
4490         case ZORAN_MAP_MODE_JPG_REC:
4491         case ZORAN_MAP_MODE_JPG_PLAY:
4492
4493                 /* lock */
4494                 mutex_lock(&zr->resource_lock);
4495
4496                 /* Map the MJPEG buffers */
4497                 if (!fh->jpg_buffers.allocated) {
4498                         dprintk(1,
4499                                 KERN_ERR
4500                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4501                                 ZR_DEVNAME(zr));
4502                         res = -ENOMEM;
4503                         goto jpg_mmap_unlock_and_return;
4504                 }
4505
4506                 first = offset / fh->jpg_buffers.buffer_size;
4507                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4508                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4509                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4510                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4511                     last >= fh->jpg_buffers.num_buffers) {
4512                         dprintk(1,
4513                                 KERN_ERR
4514                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4515                                 ZR_DEVNAME(zr), offset, size,
4516                                 fh->jpg_buffers.buffer_size,
4517                                 fh->jpg_buffers.num_buffers);
4518                         res = -EINVAL;
4519                         goto jpg_mmap_unlock_and_return;
4520                 }
4521                 for (i = first; i <= last; i++) {
4522                         if (fh->jpg_buffers.buffer[i].map) {
4523                                 dprintk(1,
4524                                         KERN_ERR
4525                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4526                                         ZR_DEVNAME(zr), i);
4527                                 res = -EBUSY;
4528                                 goto jpg_mmap_unlock_and_return;
4529                         }
4530                 }
4531
4532                 /* map these buffers (v4l_buffers[i]) */
4533                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4534                 if (!map) {
4535                         res = -ENOMEM;
4536                         goto jpg_mmap_unlock_and_return;
4537                 }
4538                 map->file = file;
4539                 map->count = 1;
4540
4541                 vma->vm_ops = &zoran_vm_ops;
4542                 vma->vm_flags |= VM_DONTEXPAND;
4543                 vma->vm_private_data = map;
4544
4545                 for (i = first; i <= last; i++) {
4546                         for (j = 0;
4547                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4548                              j++) {
4549                                 fraglen =
4550                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4551                                      frag_tab[2 * j + 1]) & ~1) << 1;
4552                                 todo = size;
4553                                 if (todo > fraglen)
4554                                         todo = fraglen;
4555                                 pos =
4556                                     le32_to_cpu((unsigned long) fh->jpg_buffers.
4557                                     buffer[i].frag_tab[2 * j]);
4558                                 /* should just be pos on i386 */
4559                                 page = virt_to_phys(bus_to_virt(pos))
4560                                                                 >> PAGE_SHIFT;
4561                                 if (remap_pfn_range(vma, start, page,
4562                                                         todo, PAGE_SHARED)) {
4563                                         dprintk(1,
4564                                                 KERN_ERR
4565                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4566                                                 ZR_DEVNAME(zr));
4567                                         res = -EAGAIN;
4568                                         goto jpg_mmap_unlock_and_return;
4569                                 }
4570                                 size -= todo;
4571                                 start += todo;
4572                                 if (size == 0)
4573                                         break;
4574                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4575                                     frag_tab[2 * j + 1]) & 1)
4576                                         break;  /* was last fragment */
4577                         }
4578                         fh->jpg_buffers.buffer[i].map = map;
4579                         if (size == 0)
4580                                 break;
4581
4582                 }
4583         jpg_mmap_unlock_and_return:
4584                 mutex_unlock(&zr->resource_lock);
4585
4586                 break;
4587
4588         case ZORAN_MAP_MODE_RAW:
4589
4590                 mutex_lock(&zr->resource_lock);
4591
4592                 /* Map the V4L buffers */
4593                 if (!fh->v4l_buffers.allocated) {
4594                         dprintk(1,
4595                                 KERN_ERR
4596                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4597                                 ZR_DEVNAME(zr));
4598                         res = -ENOMEM;
4599                         goto v4l_mmap_unlock_and_return;
4600                 }
4601
4602                 first = offset / fh->v4l_buffers.buffer_size;
4603                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4604                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4605                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4606                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4607                     last >= fh->v4l_buffers.buffer_size) {
4608                         dprintk(1,
4609                                 KERN_ERR
4610                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4611                                 ZR_DEVNAME(zr), offset, size,
4612                                 fh->v4l_buffers.buffer_size,
4613                                 fh->v4l_buffers.num_buffers);
4614                         res = -EINVAL;
4615                         goto v4l_mmap_unlock_and_return;
4616                 }
4617                 for (i = first; i <= last; i++) {
4618                         if (fh->v4l_buffers.buffer[i].map) {
4619                                 dprintk(1,
4620                                         KERN_ERR
4621                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4622                                         ZR_DEVNAME(zr), i);
4623                                 res = -EBUSY;
4624                                 goto v4l_mmap_unlock_and_return;
4625                         }
4626                 }
4627
4628                 /* map these buffers (v4l_buffers[i]) */
4629                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4630                 if (!map) {
4631                         res = -ENOMEM;
4632                         goto v4l_mmap_unlock_and_return;
4633                 }
4634                 map->file = file;
4635                 map->count = 1;
4636
4637                 vma->vm_ops = &zoran_vm_ops;
4638                 vma->vm_flags |= VM_DONTEXPAND;
4639                 vma->vm_private_data = map;
4640
4641                 for (i = first; i <= last; i++) {
4642                         todo = size;
4643                         if (todo > fh->v4l_buffers.buffer_size)
4644                                 todo = fh->v4l_buffers.buffer_size;
4645                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4646                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4647                                                         todo, PAGE_SHARED)) {
4648                                 dprintk(1,
4649                                         KERN_ERR
4650                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4651                                         ZR_DEVNAME(zr));
4652                                 res = -EAGAIN;
4653                                 goto v4l_mmap_unlock_and_return;
4654                         }
4655                         size -= todo;
4656                         start += todo;
4657                         fh->v4l_buffers.buffer[i].map = map;
4658                         if (size == 0)
4659                                 break;
4660                 }
4661         v4l_mmap_unlock_and_return:
4662                 mutex_unlock(&zr->resource_lock);
4663
4664                 break;
4665
4666         default:
4667                 dprintk(1,
4668                         KERN_ERR
4669                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4670                         ZR_DEVNAME(zr), fh->map_mode);
4671                 break;
4672         }
4673
4674         return 0;
4675 }
4676
4677 static struct file_operations zoran_fops = {
4678         .owner = THIS_MODULE,
4679         .open = zoran_open,
4680         .release = zoran_close,
4681         .ioctl = zoran_ioctl,
4682         .compat_ioctl   = v4l_compat_ioctl32,
4683         .llseek = no_llseek,
4684         .read = zoran_read,
4685         .write = zoran_write,
4686         .mmap = zoran_mmap,
4687         .poll = zoran_poll,
4688 };
4689
4690 struct video_device zoran_template __devinitdata = {
4691         .name = ZORAN_NAME,
4692         .type = ZORAN_VID_TYPE,
4693 #ifdef HAVE_V4L2
4694         .type2 = ZORAN_V4L2_VID_FLAGS,
4695 #endif
4696         .hardware = ZORAN_HARDWARE,
4697         .fops = &zoran_fops,
4698         .release = &zoran_vdev_release,
4699         .minor = -1
4700 };
4701