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/version.h>
  48 #include <linux/init.h>
  49 #include <linux/module.h>
  50 #include <linux/delay.h>
  51 #include <linux/slab.h>
  52 #include <linux/pci.h>
  53 #include <linux/vmalloc.h>
  54 #include <linux/wait.h>
  55 #include <linux/byteorder/generic.h>
  56
  57 #include <linux/interrupt.h>
  58 #include <linux/i2c.h>
  59 #include <linux/i2c-algo-bit.h>
  60
  61 #include <linux/spinlock.h>
  62 #define     MAP_NR(x)       virt_to_page(x)
  63 #define     ZORAN_HARDWARE  VID_HARDWARE_ZR36067
  64 #define     ZORAN_VID_TYPE  ( \
  65                                 VID_TYPE_CAPTURE | \
  66                                 VID_TYPE_OVERLAY | \
  67                                 VID_TYPE_CLIPPING | \
  68                                 VID_TYPE_FRAMERAM | \
  69                                 VID_TYPE_SCALES | \
  70                                 VID_TYPE_MJPEG_DECODER | \
  71                                 VID_TYPE_MJPEG_ENCODER \
  72                              )
  73
  74 #include <linux/videodev.h>
  75 #include <media/v4l2-common.h>
  76 #include "videocodec.h"
  77
  78 #include <asm/io.h>
  79 #include <asm/uaccess.h>
  80 #include <linux/proc_fs.h>
  81
  82 #include <linux/video_decoder.h>
  83 #include <linux/video_encoder.h>
  84 #include <linux/mutex.h>
  85 #include "zoran.h"
  86 #include "zoran_device.h"
  87 #include "zoran_card.h"
  88
  89 #ifdef CONFIG_VIDEO_V4L2
  90         /* we declare some card type definitions here, they mean
  91          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  92 #define ZORAN_V4L2_VID_FLAGS ( \
  93                                 V4L2_CAP_STREAMING |\
  94                                 V4L2_CAP_VIDEO_CAPTURE |\
  95                                 V4L2_CAP_VIDEO_OUTPUT |\
  96                                 V4L2_CAP_VIDEO_OVERLAY \
  97                               )
  98 #endif
  99
 100 #include <asm/byteorder.h>
 101
 102 const struct zoran_format zoran_formats[] = {
 103         {
 104                 .name = "15-bit RGB",
 105                 .palette = VIDEO_PALETTE_RGB555,
 106 #ifdef CONFIG_VIDEO_V4L2
 107 #ifdef __LITTLE_ENDIAN
 108                 .fourcc = V4L2_PIX_FMT_RGB555,
 109 #else
 110                 .fourcc = V4L2_PIX_FMT_RGB555X,
 111 #endif
 112                 .colorspace = V4L2_COLORSPACE_SRGB,
 113 #endif
 114                 .depth = 15,
 115                 .flags = ZORAN_FORMAT_CAPTURE |
 116                          ZORAN_FORMAT_OVERLAY,
 117         }, {
 118                 .name = "16-bit RGB",
 119                 .palette = VIDEO_PALETTE_RGB565,
 120 #ifdef CONFIG_VIDEO_V4L2
 121 #ifdef __LITTLE_ENDIAN
 122                 .fourcc = V4L2_PIX_FMT_RGB565,
 123 #else
 124                 .fourcc = V4L2_PIX_FMT_RGB565X,
 125 #endif
 126                 .colorspace = V4L2_COLORSPACE_SRGB,
 127 #endif
 128                 .depth = 16,
 129                 .flags = ZORAN_FORMAT_CAPTURE |
 130                          ZORAN_FORMAT_OVERLAY,
 131         }, {
 132                 .name = "24-bit RGB",
 133                 .palette = VIDEO_PALETTE_RGB24,
 134 #ifdef CONFIG_VIDEO_V4L2
 135 #ifdef __LITTLE_ENDIAN
 136                 .fourcc = V4L2_PIX_FMT_BGR24,
 137 #else
 138                 .fourcc = V4L2_PIX_FMT_RGB24,
 139 #endif
 140                 .colorspace = V4L2_COLORSPACE_SRGB,
 141 #endif
 142                 .depth = 24,
 143                 .flags = ZORAN_FORMAT_CAPTURE |
 144                          ZORAN_FORMAT_OVERLAY,
 145         }, {
 146                 .name = "32-bit RGB",
 147                 .palette = VIDEO_PALETTE_RGB32,
 148 #ifdef CONFIG_VIDEO_V4L2
 149 #ifdef __LITTLE_ENDIAN
 150                 .fourcc = V4L2_PIX_FMT_BGR32,
 151 #else
 152                 .fourcc = V4L2_PIX_FMT_RGB32,
 153 #endif
 154                 .colorspace = V4L2_COLORSPACE_SRGB,
 155 #endif
 156                 .depth = 32,
 157                 .flags = ZORAN_FORMAT_CAPTURE |
 158                          ZORAN_FORMAT_OVERLAY,
 159         }, {
 160                 .name = "4:2:2, packed, YUYV",
 161                 .palette = VIDEO_PALETTE_YUV422,
 162 #ifdef CONFIG_VIDEO_V4L2
 163                 .fourcc = V4L2_PIX_FMT_YUYV,
 164                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 165 #endif
 166                 .depth = 16,
 167                 .flags = ZORAN_FORMAT_CAPTURE |
 168                          ZORAN_FORMAT_OVERLAY,
 169         }, {
 170                 .name = "Hardware-encoded Motion-JPEG",
 171                 .palette = -1,
 172 #ifdef CONFIG_VIDEO_V4L2
 173                 .fourcc = V4L2_PIX_FMT_MJPEG,
 174                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 175 #endif
 176                 .depth = 0,
 177                 .flags = ZORAN_FORMAT_CAPTURE |
 178                          ZORAN_FORMAT_PLAYBACK |
 179                          ZORAN_FORMAT_COMPRESSED,
 180         }
 181 };
 182 static const int zoran_num_formats =
 183     (sizeof(zoran_formats) / sizeof(struct zoran_format));
 184
 185 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
 186 #if !defined(CONFIG_BIGPHYS_AREA)
 187 //#undef CONFIG_BIGPHYS_AREA
 188 #define BUZ_USE_HIMEM
 189 #endif
 190
 191 #if defined(CONFIG_BIGPHYS_AREA)
 192 #   include <linux/bigphysarea.h>
 193 #endif
 194
 195 extern int *zr_debug;
 196
 197 #define dprintk(num, format, args...) \
 198         do { \
 199                 if (*zr_debug >= num) \
 200                         printk(format, ##args); \
 201         } while (0)
 202
 203 extern int v4l_nbufs;
 204 extern int v4l_bufsize;
 205 extern int jpg_nbufs;
 206 extern int jpg_bufsize;
 207 extern int pass_through;
 208
 209 static int lock_norm = 0;       /* 1=Don't change TV standard (norm) */
 210 module_param(lock_norm, int, 0);
 211 MODULE_PARM_DESC(lock_norm, "Users can't change norm");
 212
 213 #ifdef CONFIG_VIDEO_V4L2
 214         /* small helper function for calculating buffersizes for v4l2
 215          * we calculate the nearest higher power-of-two, which
 216          * will be the recommended buffersize */
 217 static __u32
 218 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 219 {
 220         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 221         __u32 num = (1024 * 512) / (div);
 222         __u32 result = 2;
 223
 224         num--;
 225         while (num) {
 226                 num >>= 1;
 227                 result <<= 1;
 228         }
 229
 230         if (result > jpg_bufsize)
 231                 return jpg_bufsize;
 232         if (result < 8192)
 233                 return 8192;
 234         return result;
 235 }
 236 #endif
 237
 238 /* forward references */
 239 static void v4l_fbuffer_free(struct file *file);
 240 static void jpg_fbuffer_free(struct file *file);
 241
 242 /*
 243  *   Allocate the V4L grab buffers
 244  *
 245  *   These have to be pysically contiguous.
 246  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 247  *   else we try to allocate them with bigphysarea_alloc_pages
 248  *   if the bigphysarea patch is present in the kernel,
 249  *   else we try to use high memory (if the user has bootet
 250  *   Linux with the necessary memory left over).
 251  */
 252
 253 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
 254 static unsigned long
 255 get_high_mem (unsigned long size)
 256 {
 257 /*
 258  * Check if there is usable memory at the end of Linux memory
 259  * of at least size. Return the physical address of this memory,
 260  * return 0 on failure.
 261  *
 262  * The idea is from Alexandro Rubini's book "Linux device drivers".
 263  * The driver from him which is downloadable from O'Reilly's
 264  * web site misses the "virt_to_phys(high_memory)" part
 265  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 266  *
 267  * It should be unnecessary to mention that THIS IS DANGEROUS,
 268  * if more than one driver at a time has the idea to use this memory!!!!
 269  */
 270
 271         volatile unsigned char __iomem *mem;
 272         unsigned char c;
 273         unsigned long hi_mem_ph;
 274         unsigned long i;
 275
 276         /* Map the high memory to user space */
 277
 278         hi_mem_ph = virt_to_phys(high_memory);
 279
 280         mem = ioremap(hi_mem_ph, size);
 281         if (!mem) {
 282                 dprintk(1,
 283                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 284                         ZORAN_NAME);
 285                 return 0;
 286         }
 287
 288         for (i = 0; i < size; i++) {
 289                 /* Check if it is memory */
 290                 c = i & 0xff;
 291                 writeb(c, mem + i);
 292                 if (readb(mem + i) != c)
 293                         break;
 294                 c = 255 - c;
 295                 writeb(c, mem + i);
 296                 if (readb(mem + i) != c)
 297                         break;
 298                 writeb(0, mem + i);     /* zero out memory */
 299
 300                 /* give the kernel air to breath */
 301                 if ((i & 0x3ffff) == 0x3ffff)
 302                         schedule();
 303         }
 304
 305         iounmap(mem);
 306
 307         if (i != size) {
 308                 dprintk(1,
 309                         KERN_ERR
 310                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 311                         ZORAN_NAME, size, i);
 312                 return 0;
 313         }
 314
 315         return hi_mem_ph;
 316 }
 317 #endif
 318
 319 static int
 320 v4l_fbuffer_alloc (struct file *file)
 321 {
 322         struct zoran_fh *fh = file->private_data;
 323         struct zoran *zr = fh->zr;
 324         int i, off;
 325         unsigned char *mem;
 326 #if defined(BUZ_USE_HIMEM) && !defined(CONFIG_BIGPHYS_AREA)
 327         unsigned long pmem = 0;
 328 #endif
 329
 330         /* we might have old buffers lying around... */
 331         if (fh->v4l_buffers.ready_to_be_freed) {
 332                 v4l_fbuffer_free(file);
 333         }
 334
 335         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 336                 if (fh->v4l_buffers.buffer[i].fbuffer)
 337                         dprintk(2,
 338                                 KERN_WARNING
 339                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 340                                 ZR_DEVNAME(zr), i);
 341
 342                 //udelay(20);
 343                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 344                         /* Use kmalloc */
 345
 346                         mem =
 347                             (unsigned char *) kmalloc(fh->v4l_buffers.
 348                                                       buffer_size,
 349                                                       GFP_KERNEL);
 350                         if (mem == 0) {
 351                                 dprintk(1,
 352                                         KERN_ERR
 353                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 354                                         ZR_DEVNAME(zr), i);
 355                                 v4l_fbuffer_free(file);
 356                                 return -ENOBUFS;
 357                         }
 358                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 359                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 360                             virt_to_phys(mem);
 361                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 362                             virt_to_bus(mem);
 363                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 364                              off += PAGE_SIZE)
 365                                 SetPageReserved(MAP_NR(mem + off));
 366                         dprintk(4,
 367                                 KERN_INFO
 368                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 369                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 370                                 virt_to_bus(mem));
 371                 } else {
 372 #if defined(CONFIG_BIGPHYS_AREA)
 373                         /* Use bigphysarea_alloc_pages */
 374
 375                         int n =
 376                             (fh->v4l_buffers.buffer_size + PAGE_SIZE -
 377                              1) / PAGE_SIZE;
 378
 379                         mem =
 380                             (unsigned char *) bigphysarea_alloc_pages(n, 0,
 381                                                                       GFP_KERNEL);
 382                         if (mem == 0) {
 383                                 dprintk(1,
 384                                         KERN_ERR
 385                                         "%s: v4l_fbuffer_alloc() - bigphysarea_alloc_pages for V4L buf %d failed\n",
 386                                         ZR_DEVNAME(zr), i);
 387                                 v4l_fbuffer_free(file);
 388                                 return -ENOBUFS;
 389                         }
 390                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 391                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 392                             virt_to_phys(mem);
 393                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 394                             virt_to_bus(mem);
 395                         dprintk(4,
 396                                 KERN_INFO
 397                                 "%s: Bigphysarea frame %d mem 0x%x (bus: 0x%x)\n",
 398                                 ZR_DEVNAME(zr), i, (unsigned) mem,
 399                                 (unsigned) virt_to_bus(mem));
 400
 401                         /* Zero out the allocated memory */
 402                         memset(fh->v4l_buffers.buffer[i].fbuffer, 0,
 403                                fh->v4l_buffers.buffer_size);
 404 #elif defined(BUZ_USE_HIMEM)
 405
 406                         /* Use high memory which has been left at boot time */
 407
 408                         /* Ok., Ok. this is an evil hack - we make
 409                          * the assumption that physical addresses are
 410                          * the same as bus addresses (true at least
 411                          * for Intel processors). The whole method of
 412                          * obtaining and using this memory is not very
 413                          * nice - but I hope it saves some poor users
 414                          * from kernel hacking, which might have even
 415                          * more evil results */
 416
 417                         if (i == 0) {
 418                                 int size =
 419                                     fh->v4l_buffers.num_buffers *
 420                                     fh->v4l_buffers.buffer_size;
 421
 422                                 pmem = get_high_mem(size);
 423                                 if (pmem == 0) {
 424                                         dprintk(1,
 425                                                 KERN_ERR
 426                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 427                                                 ZR_DEVNAME(zr), size >> 10);
 428                                         return -ENOBUFS;
 429                                 }
 430                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 431                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 432                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 433                                 dprintk(4,
 434                                         KERN_INFO
 435                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 436                                         ZR_DEVNAME(zr), size >> 10);
 437                         } else {
 438                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 439                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 440                                     pmem + i * fh->v4l_buffers.buffer_size;
 441                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 442                                     pmem + i * fh->v4l_buffers.buffer_size;
 443                         }
 444 #else
 445                         /* No bigphysarea present, usage of high memory disabled,
 446                          * but user wants buffers of more than MAX_KMALLOC_MEM */
 447                         dprintk(1,
 448                                 KERN_ERR
 449                                 "%s: v4l_fbuffer_alloc() - no bigphysarea_patch present, usage of high memory disabled,\n",
 450                                 ZR_DEVNAME(zr));
 451                         dprintk(1,
 452                                 KERN_ERR
 453                                 "%s: v4l_fbuffer_alloc() - sorry, could not allocate %d V4L buffers of size %d KB.\n",
 454                                 ZR_DEVNAME(zr), fh->v4l_buffers.num_buffers,
 455                                 fh->v4l_buffers.buffer_size >> 10);
 456                         return -ENOBUFS;
 457 #endif
 458                 }
 459         }
 460
 461         fh->v4l_buffers.allocated = 1;
 462
 463         return 0;
 464 }
 465
 466 /* free the V4L grab buffers */
 467 static void
 468 v4l_fbuffer_free (struct file *file)
 469 {
 470         struct zoran_fh *fh = file->private_data;
 471         struct zoran *zr = fh->zr;
 472         int i, off;
 473         unsigned char *mem;
 474
 475         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 476
 477         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 478                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 479                         continue;
 480
 481                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 482                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 483                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 484                              off += PAGE_SIZE)
 485                                 ClearPageReserved(MAP_NR(mem + off));
 486                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 487                 }
 488 #if defined(CONFIG_BIGPHYS_AREA)
 489                 else
 490                         bigphysarea_free_pages((void *) fh->v4l_buffers.
 491                                                buffer[i].fbuffer);
 492 #endif
 493                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 494         }
 495
 496         fh->v4l_buffers.allocated = 0;
 497         fh->v4l_buffers.ready_to_be_freed = 0;
 498 }
 499
 500 /*
 501  *   Allocate the MJPEG grab buffers.
 502  *
 503  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 504  *   kmalloc is used to request a physically contiguous area,
 505  *   else we allocate the memory in framgents with get_zeroed_page.
 506  *
 507  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 508  *   each MJPEG buffer needs to be physically contiguous.
 509  *   (RJ: This statement is from Dave Perks' original driver,
 510  *   I could never check it because I have a zr36067)
 511  *   The driver cares about this because it reduces the buffer
 512  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 513  *
 514  *   RJ: The contents grab buffers needs never be accessed in the driver.
 515  *       Therefore there is no need to allocate them with vmalloc in order
 516  *       to get a contiguous virtual memory space.
 517  *       I don't understand why many other drivers first allocate them with
 518  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 519  *       virtual addresses) and then again have to make a lot of efforts
 520  *       to get the physical address.
 521  *
 522  *   Ben Capper:
 523  *       On big-endian architectures (such as ppc) some extra steps
 524  *       are needed. When reading and writing to the stat_com array
 525  *       and fragment buffers, the device expects to see little-
 526  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 527  *       in this function (and one or two others in zoran_device.c)
 528  *       ensure that these values are always stored in little-endian
 529  *       form, regardless of architecture. The zr36057 does Very Bad
 530  *       Things on big endian architectures if the stat_com array
 531  *       and fragment buffers are not little-endian.
 532  */
 533
 534 static int
 535 jpg_fbuffer_alloc (struct file *file)
 536 {
 537         struct zoran_fh *fh = file->private_data;
 538         struct zoran *zr = fh->zr;
 539         int i, j, off;
 540         unsigned long mem;
 541
 542         /* we might have old buffers lying around */
 543         if (fh->jpg_buffers.ready_to_be_freed) {
 544                 jpg_fbuffer_free(file);
 545         }
 546
 547         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 548                 if (fh->jpg_buffers.buffer[i].frag_tab)
 549                         dprintk(2,
 550                                 KERN_WARNING
 551                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 552                                 ZR_DEVNAME(zr), i);
 553
 554                 /* Allocate fragment table for this buffer */
 555
 556                 mem = get_zeroed_page(GFP_KERNEL);
 557                 if (mem == 0) {
 558                         dprintk(1,
 559                                 KERN_ERR
 560                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 561                                 ZR_DEVNAME(zr), i);
 562                         jpg_fbuffer_free(file);
 563                         return -ENOBUFS;
 564                 }
 565                 memset((void *) mem, 0, PAGE_SIZE);
 566                 fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
 567                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 568                     virt_to_bus((void *) mem);
 569
 570                 //if (alloc_contig) {
 571                 if (fh->jpg_buffers.need_contiguous) {
 572                         mem =
 573                             (unsigned long) kmalloc(fh->jpg_buffers.
 574                                                     buffer_size,
 575                                                     GFP_KERNEL);
 576                         if (mem == 0) {
 577                                 dprintk(1,
 578                                         KERN_ERR
 579                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 580                                         ZR_DEVNAME(zr), i);
 581                                 jpg_fbuffer_free(file);
 582                                 return -ENOBUFS;
 583                         }
 584                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 585                             cpu_to_le32(virt_to_bus((void *) mem));
 586                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 587                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 588                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 589                              off += PAGE_SIZE)
 590                                 SetPageReserved(MAP_NR(mem + off));
 591                 } else {
 592                         /* jpg_bufsize is allreay page aligned */
 593                         for (j = 0;
 594                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 595                              j++) {
 596                                 mem = get_zeroed_page(GFP_KERNEL);
 597                                 if (mem == 0) {
 598                                         dprintk(1,
 599                                                 KERN_ERR
 600                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 601                                                 ZR_DEVNAME(zr), i);
 602                                         jpg_fbuffer_free(file);
 603                                         return -ENOBUFS;
 604                                 }
 605
 606                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 607                                     cpu_to_le32(virt_to_bus((void *) mem));
 608                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 609                                                                    1] =
 610                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 611                                 SetPageReserved(MAP_NR(mem));
 612                         }
 613
 614                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 615                 }
 616         }
 617
 618         dprintk(4,
 619                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 620                 ZR_DEVNAME(zr),
 621                 (fh->jpg_buffers.num_buffers *
 622                  fh->jpg_buffers.buffer_size) >> 10);
 623
 624         fh->jpg_buffers.allocated = 1;
 625
 626         return 0;
 627 }
 628
 629 /* free the MJPEG grab buffers */
 630 static void
 631 jpg_fbuffer_free (struct file *file)
 632 {
 633         struct zoran_fh *fh = file->private_data;
 634         struct zoran *zr = fh->zr;
 635         int i, j, off;
 636         unsigned char *mem;
 637
 638         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 639
 640         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 641                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 642                         continue;
 643
 644                 //if (alloc_contig) {
 645                 if (fh->jpg_buffers.need_contiguous) {
 646                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 647                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 648                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 649                                 for (off = 0;
 650                                      off < fh->jpg_buffers.buffer_size;
 651                                      off += PAGE_SIZE)
 652                                         ClearPageReserved(MAP_NR
 653                                                           (mem + off));
 654                                 kfree(mem);
 655                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 656                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 657                         }
 658                 } else {
 659                         for (j = 0;
 660                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 661                              j++) {
 662                                 if (!fh->jpg_buffers.buffer[i].
 663                                     frag_tab[2 * j])
 664                                         break;
 665                                 ClearPageReserved(MAP_NR
 666                                                   (bus_to_virt
 667                                                    (le32_to_cpu
 668                                                     (fh->jpg_buffers.
 669                                                      buffer[i].frag_tab[2 *
 670                                                                        j]))));
 671                                 free_page((unsigned long)
 672                                           bus_to_virt
 673                                                   (le32_to_cpu
 674                                                    (fh->jpg_buffers.
 675                                                       buffer[i].
 676                                                       frag_tab[2 * j])));
 677                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 678                                     0;
 679                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 680                                                                    1] = 0;
 681                         }
 682                 }
 683
 684                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 685                           frag_tab);
 686                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 687         }
 688
 689         fh->jpg_buffers.allocated = 0;
 690         fh->jpg_buffers.ready_to_be_freed = 0;
 691 }
 692
 693 /*
 694  *   V4L Buffer grabbing
 695  */
 696
 697 static int
 698 zoran_v4l_set_format (struct file               *file,
 699                       int                        width,
 700                       int                        height,
 701                       const struct zoran_format *format)
 702 {
 703         struct zoran_fh *fh = file->private_data;
 704         struct zoran *zr = fh->zr;
 705         int bpp;
 706
 707         /* Check size and format of the grab wanted */
 708
 709         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 710             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 711                 dprintk(1,
 712                         KERN_ERR
 713                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 714                         ZR_DEVNAME(zr), width, height);
 715                 return -EINVAL;
 716         }
 717
 718         bpp = (format->depth + 7) / 8;
 719
 720         /* Check against available buffer size */
 721         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 722                 dprintk(1,
 723                         KERN_ERR
 724                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 725                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 726                 return -EINVAL;
 727         }
 728
 729         /* The video front end needs 4-byte alinged line sizes */
 730
 731         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 732                 dprintk(1,
 733                         KERN_ERR
 734                         "%s: v4l_set_format() - wrong frame alingment\n",
 735                         ZR_DEVNAME(zr));
 736                 return -EINVAL;
 737         }
 738
 739         fh->v4l_settings.width = width;
 740         fh->v4l_settings.height = height;
 741         fh->v4l_settings.format = format;
 742         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 743
 744         return 0;
 745 }
 746
 747 static int
 748 zoran_v4l_queue_frame (struct file *file,
 749                        int          num)
 750 {
 751         struct zoran_fh *fh = file->private_data;
 752         struct zoran *zr = fh->zr;
 753         unsigned long flags;
 754         int res = 0;
 755
 756         if (!fh->v4l_buffers.allocated) {
 757                 dprintk(1,
 758                         KERN_ERR
 759                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 760                         ZR_DEVNAME(zr));
 761                 res = -ENOMEM;
 762         }
 763
 764         /* No grabbing outside the buffer range! */
 765         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 766                 dprintk(1,
 767                         KERN_ERR
 768                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 769                         ZR_DEVNAME(zr), num);
 770                 res = -EINVAL;
 771         }
 772
 773         spin_lock_irqsave(&zr->spinlock, flags);
 774
 775         if (fh->v4l_buffers.active == ZORAN_FREE) {
 776                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 777                         zr->v4l_buffers = fh->v4l_buffers;
 778                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 779                 } else {
 780                         dprintk(1,
 781                                 KERN_ERR
 782                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 783                                 ZR_DEVNAME(zr));
 784                         res = -EBUSY;
 785                 }
 786         }
 787
 788         /* make sure a grab isn't going on currently with this buffer */
 789         if (!res) {
 790                 switch (zr->v4l_buffers.buffer[num].state) {
 791                 default:
 792                 case BUZ_STATE_PEND:
 793                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 794                                 fh->v4l_buffers.active = ZORAN_FREE;
 795                                 zr->v4l_buffers.allocated = 0;
 796                         }
 797                         res = -EBUSY;   /* what are you doing? */
 798                         break;
 799                 case BUZ_STATE_DONE:
 800                         dprintk(2,
 801                                 KERN_WARNING
 802                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 803                                 ZR_DEVNAME(zr), num);
 804                 case BUZ_STATE_USER:
 805                         /* since there is at least one unused buffer there's room for at least
 806                          * one more pend[] entry */
 807                         zr->v4l_pend[zr->v4l_pend_head++ &
 808                                         V4L_MASK_FRAME] = num;
 809                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 810                         zr->v4l_buffers.buffer[num].bs.length =
 811                             fh->v4l_settings.bytesperline *
 812                             zr->v4l_settings.height;
 813                         fh->v4l_buffers.buffer[num] =
 814                             zr->v4l_buffers.buffer[num];
 815                         break;
 816                 }
 817         }
 818
 819         spin_unlock_irqrestore(&zr->spinlock, flags);
 820
 821         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 822                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 823
 824         return res;
 825 }
 826
 827 static int
 828 v4l_grab (struct file       *file,
 829           struct video_mmap *mp)
 830 {
 831         struct zoran_fh *fh = file->private_data;
 832         struct zoran *zr = fh->zr;
 833         int res = 0, i;
 834
 835         for (i = 0; i < zoran_num_formats; i++) {
 836                 if (zoran_formats[i].palette == mp->format &&
 837                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 838                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 839                         break;
 840         }
 841         if (i == zoran_num_formats || zoran_formats[i].depth == 0) {
 842                 dprintk(1,
 843                         KERN_ERR
 844                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 845                         ZR_DEVNAME(zr));
 846                 return -EINVAL;
 847         }
 848
 849         /*
 850          * To minimize the time spent in the IRQ routine, we avoid setting up
 851          * the video front end there.
 852          * If this grab has different parameters from a running streaming capture
 853          * we stop the streaming capture and start it over again.
 854          */
 855         if (zr->v4l_memgrab_active &&
 856             (zr->v4l_settings.width != mp->width ||
 857              zr->v4l_settings.height != mp->height ||
 858              zr->v4l_settings.format->palette != mp->format)) {
 859                 res = wait_grab_pending(zr);
 860                 if (res)
 861                         return res;
 862         }
 863         if ((res = zoran_v4l_set_format(file,
 864                                         mp->width,
 865                                         mp->height,
 866                                         &zoran_formats[i])))
 867                 return res;
 868         zr->v4l_settings = fh->v4l_settings;
 869
 870         /* queue the frame in the pending queue */
 871         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 872                 fh->v4l_buffers.active = ZORAN_FREE;
 873                 return res;
 874         }
 875
 876         /* put the 36057 into frame grabbing mode */
 877         if (!res && !zr->v4l_memgrab_active)
 878                 zr36057_set_memgrab(zr, 1);
 879
 880         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 881
 882         return res;
 883 }
 884
 885 /*
 886  * Sync on a V4L buffer
 887  */
 888
 889 static int
 890 v4l_sync (struct file *file,
 891           int          frame)
 892 {
 893         struct zoran_fh *fh = file->private_data;
 894         struct zoran *zr = fh->zr;
 895         unsigned long flags;
 896
 897         if (fh->v4l_buffers.active == ZORAN_FREE) {
 898                 dprintk(1,
 899                         KERN_ERR
 900                         "%s: v4l_sync() - no grab active for this session\n",
 901                         ZR_DEVNAME(zr));
 902                 return -EINVAL;
 903         }
 904
 905         /* check passed-in frame number */
 906         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 907                 dprintk(1,
 908                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 909                         ZR_DEVNAME(zr), frame);
 910                 return -EINVAL;
 911         }
 912
 913         /* Check if is buffer was queued at all */
 914         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 915                 dprintk(1,
 916                         KERN_ERR
 917                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 918                         ZR_DEVNAME(zr));
 919                 return -EPROTO;
 920         }
 921
 922         /* wait on this buffer to get ready */
 923         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 924                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 925                                 10*HZ))
 926                 return -ETIME;
 927         if (signal_pending(current))
 928                 return -ERESTARTSYS;
 929
 930         /* buffer should now be in BUZ_STATE_DONE */
 931         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 932                 dprintk(2,
 933                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 934                         ZR_DEVNAME(zr));
 935
 936         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 937         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 938
 939         spin_lock_irqsave(&zr->spinlock, flags);
 940
 941         /* Check if streaming capture has finished */
 942         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 943                 zr36057_set_memgrab(zr, 0);
 944                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 945                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 946                             ZORAN_FREE;
 947                         zr->v4l_buffers.allocated = 0;
 948                 }
 949         }
 950
 951         spin_unlock_irqrestore(&zr->spinlock, flags);
 952
 953         return 0;
 954 }
 955
 956 /*
 957  *   Queue a MJPEG buffer for capture/playback
 958  */
 959
 960 static int
 961 zoran_jpg_queue_frame (struct file          *file,
 962                        int                   num,
 963                        enum zoran_codec_mode mode)
 964 {
 965         struct zoran_fh *fh = file->private_data;
 966         struct zoran *zr = fh->zr;
 967         unsigned long flags;
 968         int res = 0;
 969
 970         /* Check if buffers are allocated */
 971         if (!fh->jpg_buffers.allocated) {
 972                 dprintk(1,
 973                         KERN_ERR
 974                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 975                         ZR_DEVNAME(zr));
 976                 return -ENOMEM;
 977         }
 978
 979         /* No grabbing outside the buffer range! */
 980         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 981                 dprintk(1,
 982                         KERN_ERR
 983                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 984                         ZR_DEVNAME(zr), num);
 985                 return -EINVAL;
 986         }
 987
 988         /* what is the codec mode right now? */
 989         if (zr->codec_mode == BUZ_MODE_IDLE) {
 990                 zr->jpg_settings = fh->jpg_settings;
 991         } else if (zr->codec_mode != mode) {
 992                 /* wrong codec mode active - invalid */
 993                 dprintk(1,
 994                         KERN_ERR
 995                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 996                         ZR_DEVNAME(zr));
 997                 return -EINVAL;
 998         }
 999
1000         if (fh->jpg_buffers.active == ZORAN_FREE) {
1001                 if (zr->jpg_buffers.active == ZORAN_FREE) {
1002                         zr->jpg_buffers = fh->jpg_buffers;
1003                         fh->jpg_buffers.active = ZORAN_ACTIVE;
1004                 } else {
1005                         dprintk(1,
1006                                 KERN_ERR
1007                                 "%s: jpg_queue_frame() - another session is already capturing\n",
1008                                 ZR_DEVNAME(zr));
1009                         res = -EBUSY;
1010                 }
1011         }
1012
1013         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
1014                 /* Ok load up the jpeg codec */
1015                 zr36057_enable_jpg(zr, mode);
1016         }
1017
1018         spin_lock_irqsave(&zr->spinlock, flags);
1019
1020         if (!res) {
1021                 switch (zr->jpg_buffers.buffer[num].state) {
1022                 case BUZ_STATE_DONE:
1023                         dprintk(2,
1024                                 KERN_WARNING
1025                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
1026                                 ZR_DEVNAME(zr));
1027                 case BUZ_STATE_USER:
1028                         /* since there is at least one unused buffer there's room for at
1029                          *least one more pend[] entry */
1030                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
1031                             num;
1032                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
1033                         fh->jpg_buffers.buffer[num] =
1034                             zr->jpg_buffers.buffer[num];
1035                         zoran_feed_stat_com(zr);
1036                         break;
1037                 default:
1038                 case BUZ_STATE_DMA:
1039                 case BUZ_STATE_PEND:
1040                         if (zr->jpg_buffers.active == ZORAN_FREE) {
1041                                 fh->jpg_buffers.active = ZORAN_FREE;
1042                                 zr->jpg_buffers.allocated = 0;
1043                         }
1044                         res = -EBUSY;   /* what are you doing? */
1045                         break;
1046                 }
1047         }
1048
1049         spin_unlock_irqrestore(&zr->spinlock, flags);
1050
1051         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
1052                 zr->jpg_buffers.active = fh->jpg_buffers.active;
1053         }
1054
1055         return res;
1056 }
1057
1058 static int
1059 jpg_qbuf (struct file          *file,
1060           int                   frame,
1061           enum zoran_codec_mode mode)
1062 {
1063         struct zoran_fh *fh = file->private_data;
1064         struct zoran *zr = fh->zr;
1065         int res = 0;
1066
1067         /* Does the user want to stop streaming? */
1068         if (frame < 0) {
1069                 if (zr->codec_mode == mode) {
1070                         if (fh->jpg_buffers.active == ZORAN_FREE) {
1071                                 dprintk(1,
1072                                         KERN_ERR
1073                                         "%s: jpg_qbuf(-1) - session not active\n",
1074                                         ZR_DEVNAME(zr));
1075                                 return -EINVAL;
1076                         }
1077                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1078                             ZORAN_FREE;
1079                         zr->jpg_buffers.allocated = 0;
1080                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1081                         return 0;
1082                 } else {
1083                         dprintk(1,
1084                                 KERN_ERR
1085                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1086                                 ZR_DEVNAME(zr));
1087                         return -EINVAL;
1088                 }
1089         }
1090
1091         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1092                 return res;
1093
1094         /* Start the jpeg codec when the first frame is queued  */
1095         if (!res && zr->jpg_que_head == 1)
1096                 jpeg_start(zr);
1097
1098         return res;
1099 }
1100
1101 /*
1102  *   Sync on a MJPEG buffer
1103  */
1104
1105 static int
1106 jpg_sync (struct file       *file,
1107           struct zoran_sync *bs)
1108 {
1109         struct zoran_fh *fh = file->private_data;
1110         struct zoran *zr = fh->zr;
1111         unsigned long flags;
1112         int frame;
1113
1114         if (fh->jpg_buffers.active == ZORAN_FREE) {
1115                 dprintk(1,
1116                         KERN_ERR
1117                         "%s: jpg_sync() - capture is not currently active\n",
1118                         ZR_DEVNAME(zr));
1119                 return -EINVAL;
1120         }
1121         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1122             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1123                 dprintk(1,
1124                         KERN_ERR
1125                         "%s: jpg_sync() - codec not in streaming mode\n",
1126                         ZR_DEVNAME(zr));
1127                 return -EINVAL;
1128         }
1129         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1130                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1131                          zr->jpg_dma_tail == zr->jpg_dma_head),
1132                         10*HZ)) {
1133                 int isr;
1134
1135                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1136                 udelay(1);
1137                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1138                                            sizeof(isr), &isr);
1139                 dprintk(1,
1140                         KERN_ERR
1141                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1142                         ZR_DEVNAME(zr), isr);
1143
1144                 return -ETIME;
1145
1146         }
1147         if (signal_pending(current))
1148                 return -ERESTARTSYS;
1149
1150         spin_lock_irqsave(&zr->spinlock, flags);
1151
1152         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1153                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1154         else
1155                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1156
1157         /* buffer should now be in BUZ_STATE_DONE */
1158         if (*zr_debug > 0)
1159                 if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1160                         dprintk(2,
1161                                 KERN_ERR
1162                                 "%s: jpg_sync() - internal state error\n",
1163                                 ZR_DEVNAME(zr));
1164
1165         *bs = zr->jpg_buffers.buffer[frame].bs;
1166         bs->frame = frame;
1167         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1168         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1169
1170         spin_unlock_irqrestore(&zr->spinlock, flags);
1171
1172         return 0;
1173 }
1174
1175 static void
1176 zoran_open_init_session (struct file *file)
1177 {
1178         int i;
1179         struct zoran_fh *fh = file->private_data;
1180         struct zoran *zr = fh->zr;
1181
1182         /* Per default, map the V4L Buffers */
1183         fh->map_mode = ZORAN_MAP_MODE_RAW;
1184
1185         /* take over the card's current settings */
1186         fh->overlay_settings = zr->overlay_settings;
1187         fh->overlay_settings.is_set = 0;
1188         fh->overlay_settings.format = zr->overlay_settings.format;
1189         fh->overlay_active = ZORAN_FREE;
1190
1191         /* v4l settings */
1192         fh->v4l_settings = zr->v4l_settings;
1193
1194         /* v4l_buffers */
1195         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1196         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1197                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1198                 fh->v4l_buffers.buffer[i].bs.frame = i;
1199         }
1200         fh->v4l_buffers.allocated = 0;
1201         fh->v4l_buffers.ready_to_be_freed = 0;
1202         fh->v4l_buffers.active = ZORAN_FREE;
1203         fh->v4l_buffers.buffer_size = v4l_bufsize;
1204         fh->v4l_buffers.num_buffers = v4l_nbufs;
1205
1206         /* jpg settings */
1207         fh->jpg_settings = zr->jpg_settings;
1208
1209         /* jpg_buffers */
1210         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1211         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1212                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1213                 fh->jpg_buffers.buffer[i].bs.frame = i;
1214         }
1215         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1216         fh->jpg_buffers.allocated = 0;
1217         fh->jpg_buffers.ready_to_be_freed = 0;
1218         fh->jpg_buffers.active = ZORAN_FREE;
1219         fh->jpg_buffers.buffer_size = jpg_bufsize;
1220         fh->jpg_buffers.num_buffers = jpg_nbufs;
1221 }
1222
1223 static void
1224 zoran_close_end_session (struct file *file)
1225 {
1226         struct zoran_fh *fh = file->private_data;
1227         struct zoran *zr = fh->zr;
1228
1229         /* overlay */
1230         if (fh->overlay_active != ZORAN_FREE) {
1231                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1232                 zr->v4l_overlay_active = 0;
1233                 if (!zr->v4l_memgrab_active)
1234                         zr36057_overlay(zr, 0);
1235                 zr->overlay_mask = NULL;
1236         }
1237
1238         /* v4l capture */
1239         if (fh->v4l_buffers.active != ZORAN_FREE) {
1240                 zr36057_set_memgrab(zr, 0);
1241                 zr->v4l_buffers.allocated = 0;
1242                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1243                     ZORAN_FREE;
1244         }
1245
1246         /* v4l buffers */
1247         if (fh->v4l_buffers.allocated ||
1248             fh->v4l_buffers.ready_to_be_freed) {
1249                 v4l_fbuffer_free(file);
1250         }
1251
1252         /* jpg capture */
1253         if (fh->jpg_buffers.active != ZORAN_FREE) {
1254                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1255                 zr->jpg_buffers.allocated = 0;
1256                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1257                     ZORAN_FREE;
1258         }
1259
1260         /* jpg buffers */
1261         if (fh->jpg_buffers.allocated ||
1262             fh->jpg_buffers.ready_to_be_freed) {
1263                 jpg_fbuffer_free(file);
1264         }
1265 }
1266
1267 /*
1268  *   Open a zoran card. Right now the flags stuff is just playing
1269  */
1270
1271 static int
1272 zoran_open (struct inode *inode,
1273             struct file  *file)
1274 {
1275         unsigned int minor = iminor(inode);
1276         struct zoran *zr = NULL;
1277         struct zoran_fh *fh;
1278         int i, res, first_open = 0, have_module_locks = 0;
1279
1280         /* find the device */
1281         for (i = 0; i < zoran_num; i++) {
1282                 if (zoran[i].video_dev->minor == minor) {
1283                         zr = &zoran[i];
1284                         break;
1285                 }
1286         }
1287
1288         if (!zr) {
1289                 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1290                 res = -ENODEV;
1291                 goto open_unlock_and_return;
1292         }
1293
1294         /* see fs/device.c - the kernel already locks during open(),
1295          * so locking ourselves only causes deadlocks */
1296         /*mutex_lock(&zr->resource_lock);*/
1297
1298         if (!zr->decoder) {
1299                 dprintk(1,
1300                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1301                         ZR_DEVNAME(zr));
1302                 res = -EIO;
1303                 goto open_unlock_and_return;
1304         }
1305
1306         /* try to grab a module lock */
1307         if (!try_module_get(THIS_MODULE)) {
1308                 dprintk(1,
1309                         KERN_ERR
1310                         "%s: failed to acquire my own lock! PANIC!\n",
1311                         ZR_DEVNAME(zr));
1312                 res = -ENODEV;
1313                 goto open_unlock_and_return;
1314         }
1315         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1316                 dprintk(1,
1317                         KERN_ERR
1318                         "%s: failed to grab ownership of i2c decoder\n",
1319                         ZR_DEVNAME(zr));
1320                 res = -EIO;
1321                 module_put(THIS_MODULE);
1322                 goto open_unlock_and_return;
1323         }
1324         if (zr->encoder &&
1325             !try_module_get(zr->encoder->driver->driver.owner)) {
1326                 dprintk(1,
1327                         KERN_ERR
1328                         "%s: failed to grab ownership of i2c encoder\n",
1329                         ZR_DEVNAME(zr));
1330                 res = -EIO;
1331                 module_put(zr->decoder->driver->driver.owner);
1332                 module_put(THIS_MODULE);
1333                 goto open_unlock_and_return;
1334         }
1335
1336         have_module_locks = 1;
1337
1338         if (zr->user >= 2048) {
1339                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1340                         ZR_DEVNAME(zr), zr->user);
1341                 res = -EBUSY;
1342                 goto open_unlock_and_return;
1343         }
1344
1345         dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1346                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1347
1348         /* now, create the open()-specific file_ops struct */
1349         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1350         if (!fh) {
1351                 dprintk(1,
1352                         KERN_ERR
1353                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1354                         ZR_DEVNAME(zr));
1355                 res = -ENOMEM;
1356                 goto open_unlock_and_return;
1357         }
1358         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1359          * on norm-change! */
1360         fh->overlay_mask =
1361             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1362         if (!fh->overlay_mask) {
1363                 dprintk(1,
1364                         KERN_ERR
1365                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1366                         ZR_DEVNAME(zr));
1367                 kfree(fh);
1368                 res = -ENOMEM;
1369                 goto open_unlock_and_return;
1370         }
1371
1372         if (zr->user++ == 0)
1373                 first_open = 1;
1374
1375         /*mutex_unlock(&zr->resource_lock);*/
1376
1377         /* default setup - TODO: look at flags */
1378         if (first_open) {       /* First device open */
1379                 zr36057_restart(zr);
1380                 zoran_open_init_params(zr);
1381                 zoran_init_hardware(zr);
1382
1383                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1384         }
1385
1386         /* set file_ops stuff */
1387         file->private_data = fh;
1388         fh->zr = zr;
1389         zoran_open_init_session(file);
1390
1391         return 0;
1392
1393 open_unlock_and_return:
1394         /* if we grabbed locks, release them accordingly */
1395         if (have_module_locks) {
1396                 module_put(zr->decoder->driver->driver.owner);
1397                 if (zr->encoder) {
1398                         module_put(zr->encoder->driver->driver.owner);
1399                 }
1400                 module_put(THIS_MODULE);
1401         }
1402
1403         /* if there's no device found, we didn't obtain the lock either */
1404         if (zr) {
1405                 /*mutex_unlock(&zr->resource_lock);*/
1406         }
1407
1408         return res;
1409 }
1410
1411 static int
1412 zoran_close (struct inode *inode,
1413              struct file  *file)
1414 {
1415         struct zoran_fh *fh = file->private_data;
1416         struct zoran *zr = fh->zr;
1417
1418         dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1419                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1420
1421         /* kernel locks (fs/device.c), so don't do that ourselves
1422          * (prevents deadlocks) */
1423         /*mutex_lock(&zr->resource_lock);*/
1424
1425         zoran_close_end_session(file);
1426
1427         if (zr->user-- == 1) {  /* Last process */
1428                 /* Clean up JPEG process */
1429                 wake_up_interruptible(&zr->jpg_capq);
1430                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1431                 zr->jpg_buffers.allocated = 0;
1432                 zr->jpg_buffers.active = ZORAN_FREE;
1433
1434                 /* disable interrupts */
1435                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1436
1437                 if (*zr_debug > 1)
1438                         print_interrupts(zr);
1439
1440                 /* Overlay off */
1441                 zr->v4l_overlay_active = 0;
1442                 zr36057_overlay(zr, 0);
1443                 zr->overlay_mask = NULL;
1444
1445                 /* capture off */
1446                 wake_up_interruptible(&zr->v4l_capq);
1447                 zr36057_set_memgrab(zr, 0);
1448                 zr->v4l_buffers.allocated = 0;
1449                 zr->v4l_buffers.active = ZORAN_FREE;
1450                 zoran_set_pci_master(zr, 0);
1451
1452                 if (!pass_through) {    /* Switch to color bar */
1453                         int zero = 0, two = 2;
1454                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1455                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1456                 }
1457         }
1458
1459         file->private_data = NULL;
1460         kfree(fh->overlay_mask);
1461         kfree(fh);
1462
1463         /* release locks on the i2c modules */
1464         module_put(zr->decoder->driver->driver.owner);
1465         if (zr->encoder) {
1466                  module_put(zr->encoder->driver->driver.owner);
1467         }
1468         module_put(THIS_MODULE);
1469
1470         /*mutex_unlock(&zr->resource_lock);*/
1471
1472         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1473
1474         return 0;
1475 }
1476
1477
1478 static ssize_t
1479 zoran_read (struct file *file,
1480             char        __user *data,
1481             size_t       count,
1482             loff_t      *ppos)
1483 {
1484         /* we simply don't support read() (yet)... */
1485
1486         return -EINVAL;
1487 }
1488
1489 static ssize_t
1490 zoran_write (struct file *file,
1491              const char  __user *data,
1492              size_t       count,
1493              loff_t      *ppos)
1494 {
1495         /* ...and the same goes for write() */
1496
1497         return -EINVAL;
1498 }
1499
1500 static int
1501 setup_fbuffer (struct file               *file,
1502                void                      *base,
1503                const struct zoran_format *fmt,
1504                int                        width,
1505                int                        height,
1506                int                        bytesperline)
1507 {
1508         struct zoran_fh *fh = file->private_data;
1509         struct zoran *zr = fh->zr;
1510
1511         /* (Ronald) v4l/v4l2 guidelines */
1512         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1513                 return -EPERM;
1514
1515         /* we need a bytesperline value, even if not given */
1516         if (!bytesperline)
1517                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1518
1519 #if 0
1520         if (zr->overlay_active) {
1521                 /* dzjee... stupid users... don't even bother to turn off
1522                  * overlay before changing the memory location...
1523                  * normally, we would return errors here. However, one of
1524                  * the tools that does this is... xawtv! and since xawtv
1525                  * is used by +/- 99% of the users, we'd rather be user-
1526                  * friendly and silently do as if nothing went wrong */
1527                 dprintk(3,
1528                         KERN_ERR
1529                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1530                         ZR_DEVNAME(zr));
1531                 zr36057_overlay(zr, 0);
1532         }
1533 #endif
1534
1535         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1536                 dprintk(1,
1537                         KERN_ERR
1538                         "%s: setup_fbuffer() - no valid overlay format given\n",
1539                         ZR_DEVNAME(zr));
1540                 return -EINVAL;
1541         }
1542         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1543                 dprintk(1,
1544                         KERN_ERR
1545                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1546                         ZR_DEVNAME(zr), width, height, bytesperline);
1547                 return -EINVAL;
1548         }
1549         if (bytesperline & 3) {
1550                 dprintk(1,
1551                         KERN_ERR
1552                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1553                         ZR_DEVNAME(zr), bytesperline);
1554                 return -EINVAL;
1555         }
1556
1557         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1558         zr->buffer.height = height;
1559         zr->buffer.width = width;
1560         zr->buffer.depth = fmt->depth;
1561         zr->overlay_settings.format = fmt;
1562         zr->buffer.bytesperline = bytesperline;
1563
1564         /* The user should set new window parameters */
1565         zr->overlay_settings.is_set = 0;
1566
1567         return 0;
1568 }
1569
1570
1571 static int
1572 setup_window (struct file       *file,
1573               int                x,
1574               int                y,
1575               int                width,
1576               int                height,
1577               struct video_clip __user *clips,
1578               int                clipcount,
1579               void              __user *bitmap)
1580 {
1581         struct zoran_fh *fh = file->private_data;
1582         struct zoran *zr = fh->zr;
1583         struct video_clip *vcp = NULL;
1584         int on, end;
1585
1586
1587         if (!zr->buffer.base) {
1588                 dprintk(1,
1589                         KERN_ERR
1590                         "%s: setup_window() - frame buffer has to be set first\n",
1591                         ZR_DEVNAME(zr));
1592                 return -EINVAL;
1593         }
1594
1595         if (!fh->overlay_settings.format) {
1596                 dprintk(1,
1597                         KERN_ERR
1598                         "%s: setup_window() - no overlay format set\n",
1599                         ZR_DEVNAME(zr));
1600                 return -EINVAL;
1601         }
1602
1603         /*
1604          * The video front end needs 4-byte alinged line sizes, we correct that
1605          * silently here if necessary
1606          */
1607         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1608                 end = (x + width) & ~1; /* round down */
1609                 x = (x + 1) & ~1;       /* round up */
1610                 width = end - x;
1611         }
1612
1613         if (zr->buffer.depth == 24) {
1614                 end = (x + width) & ~3; /* round down */
1615                 x = (x + 3) & ~3;       /* round up */
1616                 width = end - x;
1617         }
1618
1619         if (width > BUZ_MAX_WIDTH)
1620                 width = BUZ_MAX_WIDTH;
1621         if (height > BUZ_MAX_HEIGHT)
1622                 height = BUZ_MAX_HEIGHT;
1623
1624         /* Check for vaild parameters */
1625         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1626             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1627                 dprintk(1,
1628                         KERN_ERR
1629                         "%s: setup_window() - width = %d or height = %d invalid\n",
1630                         ZR_DEVNAME(zr), width, height);
1631                 return -EINVAL;
1632         }
1633
1634         fh->overlay_settings.x = x;
1635         fh->overlay_settings.y = y;
1636         fh->overlay_settings.width = width;
1637         fh->overlay_settings.height = height;
1638         fh->overlay_settings.clipcount = clipcount;
1639
1640         /*
1641          * If an overlay is running, we have to switch it off
1642          * and switch it on again in order to get the new settings in effect.
1643          *
1644          * We also want to avoid that the overlay mask is written
1645          * when an overlay is running.
1646          */
1647
1648         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1649             zr->overlay_active != ZORAN_FREE &&
1650             fh->overlay_active != ZORAN_FREE;
1651         if (on)
1652                 zr36057_overlay(zr, 0);
1653
1654         /*
1655          *   Write the overlay mask if clips are wanted.
1656          *   We prefer a bitmap.
1657          */
1658         if (bitmap) {
1659                 /* fake value - it just means we want clips */
1660                 fh->overlay_settings.clipcount = 1;
1661
1662                 if (copy_from_user(fh->overlay_mask, bitmap,
1663                                    (width * height + 7) / 8)) {
1664                         return -EFAULT;
1665                 }
1666         } else if (clipcount > 0) {
1667                 /* write our own bitmap from the clips */
1668                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1669                 if (vcp == NULL) {
1670                         dprintk(1,
1671                                 KERN_ERR
1672                                 "%s: setup_window() - Alloc of clip mask failed\n",
1673                                 ZR_DEVNAME(zr));
1674                         return -ENOMEM;
1675                 }
1676                 if (copy_from_user
1677                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1678                         vfree(vcp);
1679                         return -EFAULT;
1680                 }
1681                 write_overlay_mask(file, vcp, clipcount);
1682                 vfree(vcp);
1683         }
1684
1685         fh->overlay_settings.is_set = 1;
1686         if (fh->overlay_active != ZORAN_FREE &&
1687             zr->overlay_active != ZORAN_FREE)
1688                 zr->overlay_settings = fh->overlay_settings;
1689
1690         if (on)
1691                 zr36057_overlay(zr, 1);
1692
1693         /* Make sure the changes come into effect */
1694         return wait_grab_pending(zr);
1695 }
1696
1697 static int
1698 setup_overlay (struct file *file,
1699                int          on)
1700 {
1701         struct zoran_fh *fh = file->private_data;
1702         struct zoran *zr = fh->zr;
1703
1704         /* If there is nothing to do, return immediatly */
1705         if ((on && fh->overlay_active != ZORAN_FREE) ||
1706             (!on && fh->overlay_active == ZORAN_FREE))
1707                 return 0;
1708
1709         /* check whether we're touching someone else's overlay */
1710         if (on && zr->overlay_active != ZORAN_FREE &&
1711             fh->overlay_active == ZORAN_FREE) {
1712                 dprintk(1,
1713                         KERN_ERR
1714                         "%s: setup_overlay() - overlay is already active for another session\n",
1715                         ZR_DEVNAME(zr));
1716                 return -EBUSY;
1717         }
1718         if (!on && zr->overlay_active != ZORAN_FREE &&
1719             fh->overlay_active == ZORAN_FREE) {
1720                 dprintk(1,
1721                         KERN_ERR
1722                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1723                         ZR_DEVNAME(zr));
1724                 return -EPERM;
1725         }
1726
1727         if (on == 0) {
1728                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1729                 zr->v4l_overlay_active = 0;
1730                 /* When a grab is running, the video simply
1731                  * won't be switched on any more */
1732                 if (!zr->v4l_memgrab_active)
1733                         zr36057_overlay(zr, 0);
1734                 zr->overlay_mask = NULL;
1735         } else {
1736                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1737                         dprintk(1,
1738                                 KERN_ERR
1739                                 "%s: setup_overlay() - buffer or window not set\n",
1740                                 ZR_DEVNAME(zr));
1741                         return -EINVAL;
1742                 }
1743                 if (!fh->overlay_settings.format) {
1744                         dprintk(1,
1745                                 KERN_ERR
1746                                 "%s: setup_overlay() - no overlay format set\n",
1747                                 ZR_DEVNAME(zr));
1748                         return -EINVAL;
1749                 }
1750                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1751                 zr->v4l_overlay_active = 1;
1752                 zr->overlay_mask = fh->overlay_mask;
1753                 zr->overlay_settings = fh->overlay_settings;
1754                 if (!zr->v4l_memgrab_active)
1755                         zr36057_overlay(zr, 1);
1756                 /* When a grab is running, the video will be
1757                  * switched on when grab is finished */
1758         }
1759
1760         /* Make sure the changes come into effect */
1761         return wait_grab_pending(zr);
1762 }
1763
1764 #ifdef CONFIG_VIDEO_V4L2
1765         /* get the status of a buffer in the clients buffer queue */
1766 static int
1767 zoran_v4l2_buffer_status (struct file        *file,
1768                           struct v4l2_buffer *buf,
1769                           int                 num)
1770 {
1771         struct zoran_fh *fh = file->private_data;
1772         struct zoran *zr = fh->zr;
1773
1774         buf->flags = V4L2_BUF_FLAG_MAPPED;
1775
1776         switch (fh->map_mode) {
1777         case ZORAN_MAP_MODE_RAW:
1778
1779                 /* check range */
1780                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1781                     !fh->v4l_buffers.allocated) {
1782                         dprintk(1,
1783                                 KERN_ERR
1784                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1785                                 ZR_DEVNAME(zr));
1786                         return -EINVAL;
1787                 }
1788
1789                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1790                 buf->length = fh->v4l_buffers.buffer_size;
1791
1792                 /* get buffer */
1793                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1794                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1795                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1796                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1797                         buf->flags |= V4L2_BUF_FLAG_DONE;
1798                         buf->timestamp =
1799                             fh->v4l_buffers.buffer[num].bs.timestamp;
1800                 } else {
1801                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1802                 }
1803
1804                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1805                         buf->field = V4L2_FIELD_TOP;
1806                 else
1807                         buf->field = V4L2_FIELD_INTERLACED;
1808
1809                 break;
1810
1811         case ZORAN_MAP_MODE_JPG_REC:
1812         case ZORAN_MAP_MODE_JPG_PLAY:
1813
1814                 /* check range */
1815                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1816                     !fh->jpg_buffers.allocated) {
1817                         dprintk(1,
1818                                 KERN_ERR
1819                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1820                                 ZR_DEVNAME(zr));
1821                         return -EINVAL;
1822                 }
1823
1824                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1825                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1826                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1827                 buf->length = fh->jpg_buffers.buffer_size;
1828
1829                 /* these variables are only written after frame has been captured */
1830                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1831                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1832                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1833                         buf->timestamp =
1834                             fh->jpg_buffers.buffer[num].bs.timestamp;
1835                         buf->bytesused =
1836                             fh->jpg_buffers.buffer[num].bs.length;
1837                         buf->flags |= V4L2_BUF_FLAG_DONE;
1838                 } else {
1839                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1840                 }
1841
1842                 /* which fields are these? */
1843                 if (fh->jpg_settings.TmpDcm != 1)
1844                         buf->field =
1845                             fh->jpg_settings.
1846                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1847                 else
1848                         buf->field =
1849                             fh->jpg_settings.
1850                             odd_even ? V4L2_FIELD_SEQ_TB :
1851                             V4L2_FIELD_SEQ_BT;
1852
1853                 break;
1854
1855         default:
1856
1857                 dprintk(5,
1858                         KERN_ERR
1859                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1860                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1861                 return -EINVAL;
1862         }
1863
1864         buf->memory = V4L2_MEMORY_MMAP;
1865         buf->index = num;
1866         buf->m.offset = buf->length * num;
1867
1868         return 0;
1869 }
1870 #endif
1871
1872 static int
1873 zoran_set_norm (struct zoran *zr,
1874                 int           norm) /* VIDEO_MODE_* */
1875 {
1876         int norm_encoder, on;
1877
1878         if (zr->v4l_buffers.active != ZORAN_FREE ||
1879             zr->jpg_buffers.active != ZORAN_FREE) {
1880                 dprintk(1,
1881                         KERN_WARNING
1882                         "%s: set_norm() called while in playback/capture mode\n",
1883                         ZR_DEVNAME(zr));
1884                 return -EBUSY;
1885         }
1886
1887         if (lock_norm && norm != zr->norm) {
1888                 if (lock_norm > 1) {
1889                         dprintk(1,
1890                                 KERN_WARNING
1891                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1892                                 ZR_DEVNAME(zr));
1893                         return -EPERM;
1894                 } else {
1895                         dprintk(1,
1896                                 KERN_WARNING
1897                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1898                                 ZR_DEVNAME(zr));
1899                         norm = zr->norm;
1900                 }
1901         }
1902
1903         if (norm != VIDEO_MODE_AUTO &&
1904             (norm < 0 || norm >= zr->card.norms ||
1905              !zr->card.tvn[norm])) {
1906                 dprintk(1,
1907                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1908                         ZR_DEVNAME(zr), norm);
1909                 return -EINVAL;
1910         }
1911
1912         if (norm == VIDEO_MODE_AUTO) {
1913                 int status;
1914
1915                 /* if we have autodetect, ... */
1916                 struct video_decoder_capability caps;
1917                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1918                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1919                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1920                                 ZR_DEVNAME(zr));
1921                         return -EINVAL;
1922                 }
1923
1924                 decoder_command(zr, DECODER_SET_NORM, &norm);
1925
1926                 /* let changes come into effect */
1927                 ssleep(2);
1928
1929                 decoder_command(zr, DECODER_GET_STATUS, &status);
1930                 if (!(status & DECODER_STATUS_GOOD)) {
1931                         dprintk(1,
1932                                 KERN_ERR
1933                                 "%s: set_norm() - no norm detected\n",
1934                                 ZR_DEVNAME(zr));
1935                         /* reset norm */
1936                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1937                         return -EIO;
1938                 }
1939
1940                 if (status & DECODER_STATUS_NTSC)
1941                         norm = VIDEO_MODE_NTSC;
1942                 else if (status & DECODER_STATUS_SECAM)
1943                         norm = VIDEO_MODE_SECAM;
1944                 else
1945                         norm = VIDEO_MODE_PAL;
1946         }
1947         zr->timing = zr->card.tvn[norm];
1948         norm_encoder = norm;
1949
1950         /* We switch overlay off and on since a change in the
1951          * norm needs different VFE settings */
1952         on = zr->overlay_active && !zr->v4l_memgrab_active;
1953         if (on)
1954                 zr36057_overlay(zr, 0);
1955
1956         decoder_command(zr, DECODER_SET_NORM, &norm);
1957         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1958
1959         if (on)
1960                 zr36057_overlay(zr, 1);
1961
1962         /* Make sure the changes come into effect */
1963         zr->norm = norm;
1964
1965         return 0;
1966 }
1967
1968 static int
1969 zoran_set_input (struct zoran *zr,
1970                  int           input)
1971 {
1972         int realinput;
1973
1974         if (input == zr->input) {
1975                 return 0;
1976         }
1977
1978         if (zr->v4l_buffers.active != ZORAN_FREE ||
1979             zr->jpg_buffers.active != ZORAN_FREE) {
1980                 dprintk(1,
1981                         KERN_WARNING
1982                         "%s: set_input() called while in playback/capture mode\n",
1983                         ZR_DEVNAME(zr));
1984                 return -EBUSY;
1985         }
1986
1987         if (input < 0 || input >= zr->card.inputs) {
1988                 dprintk(1,
1989                         KERN_ERR
1990                         "%s: set_input() - unnsupported input %d\n",
1991                         ZR_DEVNAME(zr), input);
1992                 return -EINVAL;
1993         }
1994
1995         realinput = zr->card.input[input].muxsel;
1996         zr->input = input;
1997
1998         decoder_command(zr, DECODER_SET_INPUT, &realinput);
1999
2000         return 0;
2001 }
2002
2003 /*
2004  *   ioctl routine
2005  */
2006
2007 static int
2008 zoran_do_ioctl (struct inode *inode,
2009                 struct file  *file,
2010                 unsigned int  cmd,
2011                 void         *arg)
2012 {
2013         struct zoran_fh *fh = file->private_data;
2014         struct zoran *zr = fh->zr;
2015         /* CAREFUL: used in multiple places here */
2016         struct zoran_jpg_settings settings;
2017
2018         /* we might have older buffers lying around... We don't want
2019          * to wait, but we do want to try cleaning them up ASAP. So
2020          * we try to obtain the lock and free them. If that fails, we
2021          * don't do anything and wait for the next turn. In the end,
2022          * zoran_close() or a new allocation will still free them...
2023          * This is just a 'the sooner the better' extra 'feature'
2024          *
2025          * We don't free the buffers right on munmap() because that
2026          * causes oopses (kfree() inside munmap() oopses for no
2027          * apparent reason - it's also not reproduceable in any way,
2028          * but moving the free code outside the munmap() handler fixes
2029          * all this... If someone knows why, please explain me (Ronald)
2030          */
2031         if (!!mutex_trylock(&zr->resource_lock)) {
2032                 /* we obtained it! Let's try to free some things */
2033                 if (fh->jpg_buffers.ready_to_be_freed)
2034                         jpg_fbuffer_free(file);
2035                 if (fh->v4l_buffers.ready_to_be_freed)
2036                         v4l_fbuffer_free(file);
2037
2038                 mutex_unlock(&zr->resource_lock);
2039         }
2040
2041         switch (cmd) {
2042
2043         case VIDIOCGCAP:
2044         {
2045                 struct video_capability *vcap = arg;
2046
2047                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
2048
2049                 memset(vcap, 0, sizeof(struct video_capability));
2050                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
2051                 vcap->type = ZORAN_VID_TYPE;
2052
2053                 vcap->channels = zr->card.inputs;
2054                 vcap->audios = 0;
2055                 mutex_lock(&zr->resource_lock);
2056                 vcap->maxwidth = BUZ_MAX_WIDTH;
2057                 vcap->maxheight = BUZ_MAX_HEIGHT;
2058                 vcap->minwidth = BUZ_MIN_WIDTH;
2059                 vcap->minheight = BUZ_MIN_HEIGHT;
2060                 mutex_unlock(&zr->resource_lock);
2061
2062                 return 0;
2063         }
2064                 break;
2065
2066         case VIDIOCGCHAN:
2067         {
2068                 struct video_channel *vchan = arg;
2069                 int channel = vchan->channel;
2070
2071                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2072                         ZR_DEVNAME(zr), vchan->channel);
2073
2074                 memset(vchan, 0, sizeof(struct video_channel));
2075                 if (channel > zr->card.inputs || channel < 0) {
2076                         dprintk(1,
2077                                 KERN_ERR
2078                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
2079                                 ZR_DEVNAME(zr), channel);
2080                         return -EINVAL;
2081                 }
2082
2083                 strcpy(vchan->name, zr->card.input[channel].name);
2084
2085                 vchan->tuners = 0;
2086                 vchan->flags = 0;
2087                 vchan->type = VIDEO_TYPE_CAMERA;
2088                 mutex_lock(&zr->resource_lock);
2089                 vchan->norm = zr->norm;
2090                 mutex_unlock(&zr->resource_lock);
2091                 vchan->channel = channel;
2092
2093                 return 0;
2094         }
2095                 break;
2096
2097                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2098                  *
2099                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2100                  * *                                 ^^^^^^^
2101                  * * The famos BTTV driver has it implemented with a struct video_channel argument
2102                  * * and we follow it for compatibility reasons
2103                  * *
2104                  * * BTW: this is the only way the user can set the norm!
2105                  */
2106
2107         case VIDIOCSCHAN:
2108         {
2109                 struct video_channel *vchan = arg;
2110                 int res;
2111
2112                 dprintk(3,
2113                         KERN_DEBUG
2114                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2115                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2116
2117                 mutex_lock(&zr->resource_lock);
2118                 if ((res = zoran_set_input(zr, vchan->channel)))
2119                         goto schan_unlock_and_return;
2120                 if ((res = zoran_set_norm(zr, vchan->norm)))
2121                         goto schan_unlock_and_return;
2122
2123                 /* Make sure the changes come into effect */
2124                 res = wait_grab_pending(zr);
2125         schan_unlock_and_return:
2126                 mutex_unlock(&zr->resource_lock);
2127                 return res;
2128         }
2129                 break;
2130
2131         case VIDIOCGPICT:
2132         {
2133                 struct video_picture *vpict = arg;
2134
2135                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2136
2137                 memset(vpict, 0, sizeof(struct video_picture));
2138                 mutex_lock(&zr->resource_lock);
2139                 vpict->hue = zr->hue;
2140                 vpict->brightness = zr->brightness;
2141                 vpict->contrast = zr->contrast;
2142                 vpict->colour = zr->saturation;
2143                 if (fh->overlay_settings.format) {
2144                         vpict->depth = fh->overlay_settings.format->depth;
2145                         vpict->palette = fh->overlay_settings.format->palette;
2146                 } else {
2147                         vpict->depth = 0;
2148                 }
2149                 mutex_unlock(&zr->resource_lock);
2150
2151                 return 0;
2152         }
2153                 break;
2154
2155         case VIDIOCSPICT:
2156         {
2157                 struct video_picture *vpict = arg;
2158                 int i;
2159
2160                 dprintk(3,
2161                         KERN_DEBUG
2162                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2163                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2164                         vpict->colour, vpict->contrast, vpict->depth,
2165                         vpict->palette);
2166
2167                 for (i = 0; i < zoran_num_formats; i++) {
2168                         const struct zoran_format *fmt = &zoran_formats[i];
2169
2170                         if (fmt->palette != -1 &&
2171                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2172                             fmt->palette == vpict->palette &&
2173                             fmt->depth == vpict->depth)
2174                                 break;
2175                 }
2176                 if (i == zoran_num_formats) {
2177                         dprintk(1,
2178                                 KERN_ERR
2179                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2180                                 ZR_DEVNAME(zr), vpict->palette);
2181                         return -EINVAL;
2182                 }
2183
2184                 mutex_lock(&zr->resource_lock);
2185
2186                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2187
2188                 zr->hue = vpict->hue;
2189                 zr->contrast = vpict->contrast;
2190                 zr->saturation = vpict->colour;
2191                 zr->brightness = vpict->brightness;
2192
2193                 fh->overlay_settings.format = &zoran_formats[i];
2194
2195                 mutex_unlock(&zr->resource_lock);
2196
2197                 return 0;
2198         }
2199                 break;
2200
2201         case VIDIOCCAPTURE:
2202         {
2203                 int *on = arg, res;
2204
2205                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2206                         ZR_DEVNAME(zr), *on);
2207
2208                 mutex_lock(&zr->resource_lock);
2209                 res = setup_overlay(file, *on);
2210                 mutex_unlock(&zr->resource_lock);
2211
2212                 return res;
2213         }
2214                 break;
2215
2216         case VIDIOCGWIN:
2217         {
2218                 struct video_window *vwin = arg;
2219
2220                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2221
2222                 memset(vwin, 0, sizeof(struct video_window));
2223                 mutex_lock(&zr->resource_lock);
2224                 vwin->x = fh->overlay_settings.x;
2225                 vwin->y = fh->overlay_settings.y;
2226                 vwin->width = fh->overlay_settings.width;
2227                 vwin->height = fh->overlay_settings.height;
2228                 mutex_unlock(&zr->resource_lock);
2229                 vwin->clipcount = 0;
2230                 return 0;
2231         }
2232                 break;
2233
2234         case VIDIOCSWIN:
2235         {
2236                 struct video_window *vwin = arg;
2237                 int res;
2238
2239                 dprintk(3,
2240                         KERN_DEBUG
2241                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2242                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2243                         vwin->height, vwin->clipcount);
2244
2245                 mutex_lock(&zr->resource_lock);
2246                 res =
2247                     setup_window(file, vwin->x, vwin->y, vwin->width,
2248                                  vwin->height, vwin->clips,
2249                                  vwin->clipcount, NULL);
2250                 mutex_unlock(&zr->resource_lock);
2251
2252                 return res;
2253         }
2254                 break;
2255
2256         case VIDIOCGFBUF:
2257         {
2258                 struct video_buffer *vbuf = arg;
2259
2260                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2261
2262                 mutex_lock(&zr->resource_lock);
2263                 *vbuf = zr->buffer;
2264                 mutex_unlock(&zr->resource_lock);
2265                 return 0;
2266         }
2267                 break;
2268
2269         case VIDIOCSFBUF:
2270         {
2271                 struct video_buffer *vbuf = arg;
2272                 int i, res = 0;
2273
2274                 dprintk(3,
2275                         KERN_DEBUG
2276                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2277                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2278                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2279
2280                 for (i = 0; i < zoran_num_formats; i++)
2281                         if (zoran_formats[i].depth == vbuf->depth)
2282                                 break;
2283                 if (i == zoran_num_formats) {
2284                         dprintk(1,
2285                                 KERN_ERR
2286                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2287                                 ZR_DEVNAME(zr), vbuf->depth);
2288                         return -EINVAL;
2289                 }
2290
2291                 mutex_lock(&zr->resource_lock);
2292                 res =
2293                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2294                                   vbuf->width, vbuf->height,
2295                                   vbuf->bytesperline);
2296                 mutex_unlock(&zr->resource_lock);
2297
2298                 return res;
2299         }
2300                 break;
2301
2302         case VIDIOCSYNC:
2303         {
2304                 int *frame = arg, res;
2305
2306                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2307                         ZR_DEVNAME(zr), *frame);
2308
2309                 mutex_lock(&zr->resource_lock);
2310                 res = v4l_sync(file, *frame);
2311                 mutex_unlock(&zr->resource_lock);
2312                 if (!res)
2313                         zr->v4l_sync_tail++;
2314                 return res;
2315         }
2316                 break;
2317
2318         case VIDIOCMCAPTURE:
2319         {
2320                 struct video_mmap *vmap = arg;
2321                 int res;
2322
2323                 dprintk(3,
2324                         KERN_DEBUG
2325                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2326                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2327                         vmap->format);
2328
2329                 mutex_lock(&zr->resource_lock);
2330                 res = v4l_grab(file, vmap);
2331                 mutex_unlock(&zr->resource_lock);
2332                 return res;
2333         }
2334                 break;
2335
2336         case VIDIOCGMBUF:
2337         {
2338                 struct video_mbuf *vmbuf = arg;
2339                 int i, res = 0;
2340
2341                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2342
2343                 vmbuf->size =
2344                     fh->v4l_buffers.num_buffers *
2345                     fh->v4l_buffers.buffer_size;
2346                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2347                 for (i = 0; i < vmbuf->frames; i++) {
2348                         vmbuf->offsets[i] =
2349                             i * fh->v4l_buffers.buffer_size;
2350                 }
2351
2352                 mutex_lock(&zr->resource_lock);
2353
2354                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2355                         dprintk(1,
2356                                 KERN_ERR
2357                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2358                                 ZR_DEVNAME(zr));
2359                         res = -EINVAL;
2360                         goto v4l1reqbuf_unlock_and_return;
2361                 }
2362
2363                 if (v4l_fbuffer_alloc(file)) {
2364                         res = -ENOMEM;
2365                         goto v4l1reqbuf_unlock_and_return;
2366                 }
2367
2368                 /* The next mmap will map the V4L buffers */
2369                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2370         v4l1reqbuf_unlock_and_return:
2371                 mutex_unlock(&zr->resource_lock);
2372
2373                 return res;
2374         }
2375                 break;
2376
2377         case VIDIOCGUNIT:
2378         {
2379                 struct video_unit *vunit = arg;
2380
2381                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2382
2383                 vunit->video = zr->video_dev->minor;
2384                 vunit->vbi = VIDEO_NO_UNIT;
2385                 vunit->radio = VIDEO_NO_UNIT;
2386                 vunit->audio = VIDEO_NO_UNIT;
2387                 vunit->teletext = VIDEO_NO_UNIT;
2388
2389                 return 0;
2390         }
2391                 break;
2392
2393                 /*
2394                  * RJ: In principal we could support subcaptures for V4L grabbing.
2395                  *     Not even the famous BTTV driver has them, however.
2396                  *     If there should be a strong demand, one could consider
2397                  *     to implement them.
2398                  */
2399         case VIDIOCGCAPTURE:
2400         {
2401                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2402                         ZR_DEVNAME(zr));
2403                 return -EINVAL;
2404         }
2405                 break;
2406
2407         case VIDIOCSCAPTURE:
2408         {
2409                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2410                         ZR_DEVNAME(zr));
2411                 return -EINVAL;
2412         }
2413                 break;
2414
2415         case BUZIOC_G_PARAMS:
2416         {
2417                 struct zoran_params *bparams = arg;
2418
2419                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2420
2421                 memset(bparams, 0, sizeof(struct zoran_params));
2422                 bparams->major_version = MAJOR_VERSION;
2423                 bparams->minor_version = MINOR_VERSION;
2424
2425                 mutex_lock(&zr->resource_lock);
2426
2427                 bparams->norm = zr->norm;
2428                 bparams->input = zr->input;
2429
2430                 bparams->decimation = fh->jpg_settings.decimation;
2431                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2432                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2433                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2434                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2435                 bparams->img_x = fh->jpg_settings.img_x;
2436                 bparams->img_y = fh->jpg_settings.img_y;
2437                 bparams->img_width = fh->jpg_settings.img_width;
2438                 bparams->img_height = fh->jpg_settings.img_height;
2439                 bparams->odd_even = fh->jpg_settings.odd_even;
2440
2441                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2442                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2443                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2444                 memcpy(bparams->APP_data,
2445                        fh->jpg_settings.jpg_comp.APP_data,
2446                        sizeof(bparams->APP_data));
2447                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2448                 memcpy(bparams->COM_data,
2449                        fh->jpg_settings.jpg_comp.COM_data,
2450                        sizeof(bparams->COM_data));
2451                 bparams->jpeg_markers =
2452                     fh->jpg_settings.jpg_comp.jpeg_markers;
2453
2454                 mutex_unlock(&zr->resource_lock);
2455
2456                 bparams->VFIFO_FB = 0;
2457
2458                 return 0;
2459         }
2460                 break;
2461
2462         case BUZIOC_S_PARAMS:
2463         {
2464                 struct zoran_params *bparams = arg;
2465                 int res = 0;
2466
2467                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2468
2469                 settings.decimation = bparams->decimation;
2470                 settings.HorDcm = bparams->HorDcm;
2471                 settings.VerDcm = bparams->VerDcm;
2472                 settings.TmpDcm = bparams->TmpDcm;
2473                 settings.field_per_buff = bparams->field_per_buff;
2474                 settings.img_x = bparams->img_x;
2475                 settings.img_y = bparams->img_y;
2476                 settings.img_width = bparams->img_width;
2477                 settings.img_height = bparams->img_height;
2478                 settings.odd_even = bparams->odd_even;
2479
2480                 settings.jpg_comp.quality = bparams->quality;
2481                 settings.jpg_comp.APPn = bparams->APPn;
2482                 settings.jpg_comp.APP_len = bparams->APP_len;
2483                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2484                        sizeof(bparams->APP_data));
2485                 settings.jpg_comp.COM_len = bparams->COM_len;
2486                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2487                        sizeof(bparams->COM_data));
2488                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2489
2490                 mutex_lock(&zr->resource_lock);
2491
2492                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2493                         dprintk(1,
2494                                 KERN_ERR
2495                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2496                                 ZR_DEVNAME(zr));
2497                         res = -EINVAL;
2498                         goto sparams_unlock_and_return;
2499                 }
2500
2501                 /* Check the params first before overwriting our
2502                  * nternal values */
2503                 if (zoran_check_jpg_settings(zr, &settings)) {
2504                         res = -EINVAL;
2505                         goto sparams_unlock_and_return;
2506                 }
2507
2508                 fh->jpg_settings = settings;
2509         sparams_unlock_and_return:
2510                 mutex_unlock(&zr->resource_lock);
2511
2512                 return res;
2513         }
2514                 break;
2515
2516         case BUZIOC_REQBUFS:
2517         {
2518                 struct zoran_requestbuffers *breq = arg;
2519                 int res = 0;
2520
2521                 dprintk(3,
2522                         KERN_DEBUG
2523                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2524                         ZR_DEVNAME(zr), breq->count, breq->size);
2525
2526                 /* Enforce reasonable lower and upper limits */
2527                 if (breq->count < 4)
2528                         breq->count = 4;        /* Could be choosen smaller */
2529                 if (breq->count > jpg_nbufs)
2530                         breq->count = jpg_nbufs;
2531                 breq->size = PAGE_ALIGN(breq->size);
2532                 if (breq->size < 8192)
2533                         breq->size = 8192;      /* Arbitrary */
2534                 /* breq->size is limited by 1 page for the stat_com
2535                  * tables to a Maximum of 2 MB */
2536                 if (breq->size > jpg_bufsize)
2537                         breq->size = jpg_bufsize;
2538                 if (fh->jpg_buffers.need_contiguous &&
2539                     breq->size > MAX_KMALLOC_MEM)
2540                         breq->size = MAX_KMALLOC_MEM;
2541
2542                 mutex_lock(&zr->resource_lock);
2543
2544                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2545                         dprintk(1,
2546                                 KERN_ERR
2547                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2548                                 ZR_DEVNAME(zr));
2549                         res = -EBUSY;
2550                         goto jpgreqbuf_unlock_and_return;
2551                 }
2552
2553                 fh->jpg_buffers.num_buffers = breq->count;
2554                 fh->jpg_buffers.buffer_size = breq->size;
2555
2556                 if (jpg_fbuffer_alloc(file)) {
2557                         res = -ENOMEM;
2558                         goto jpgreqbuf_unlock_and_return;
2559                 }
2560
2561                 /* The next mmap will map the MJPEG buffers - could
2562                  * also be *_PLAY, but it doesn't matter here */
2563                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2564         jpgreqbuf_unlock_and_return:
2565                 mutex_unlock(&zr->resource_lock);
2566
2567                 return res;
2568         }
2569                 break;
2570
2571         case BUZIOC_QBUF_CAPT:
2572         {
2573                 int *frame = arg, res;
2574
2575                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2576                         ZR_DEVNAME(zr), *frame);
2577
2578                 mutex_lock(&zr->resource_lock);
2579                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2580                 mutex_unlock(&zr->resource_lock);
2581
2582                 return res;
2583         }
2584                 break;
2585
2586         case BUZIOC_QBUF_PLAY:
2587         {
2588                 int *frame = arg, res;
2589
2590                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2591                         ZR_DEVNAME(zr), *frame);
2592
2593                 mutex_lock(&zr->resource_lock);
2594                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2595                 mutex_unlock(&zr->resource_lock);
2596
2597                 return res;
2598         }
2599                 break;
2600
2601         case BUZIOC_SYNC:
2602         {
2603                 struct zoran_sync *bsync = arg;
2604                 int res;
2605
2606                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2607
2608                 mutex_lock(&zr->resource_lock);
2609                 res = jpg_sync(file, bsync);
2610                 mutex_unlock(&zr->resource_lock);
2611
2612                 return res;
2613         }
2614                 break;
2615
2616         case BUZIOC_G_STATUS:
2617         {
2618                 struct zoran_status *bstat = arg;
2619                 int norm, input, status, res = 0;
2620
2621                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2622
2623                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2624                         dprintk(1,
2625                                 KERN_ERR
2626                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2627                                 ZR_DEVNAME(zr));
2628                         return -EINVAL;
2629                 }
2630
2631                 input = zr->card.input[bstat->input].muxsel;
2632                 norm = VIDEO_MODE_AUTO;
2633
2634                 mutex_lock(&zr->resource_lock);
2635
2636                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2637                         dprintk(1,
2638                                 KERN_ERR
2639                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2640                                 ZR_DEVNAME(zr));
2641                         res = -EINVAL;
2642                         goto gstat_unlock_and_return;
2643                 }
2644
2645                 decoder_command(zr, DECODER_SET_INPUT, &input);
2646                 decoder_command(zr, DECODER_SET_NORM, &norm);
2647
2648                 /* sleep 1 second */
2649                 ssleep(1);
2650
2651                 /* Get status of video decoder */
2652                 decoder_command(zr, DECODER_GET_STATUS, &status);
2653
2654                 /* restore previous input and norm */
2655                 input = zr->card.input[zr->input].muxsel;
2656                 decoder_command(zr, DECODER_SET_INPUT, &input);
2657                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2658         gstat_unlock_and_return:
2659                 mutex_unlock(&zr->resource_lock);
2660
2661                 if (!res) {
2662                         bstat->signal =
2663                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2664                         if (status & DECODER_STATUS_NTSC)
2665                                 bstat->norm = VIDEO_MODE_NTSC;
2666                         else if (status & DECODER_STATUS_SECAM)
2667                                 bstat->norm = VIDEO_MODE_SECAM;
2668                         else
2669                                 bstat->norm = VIDEO_MODE_PAL;
2670
2671                         bstat->color =
2672                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2673                 }
2674
2675                 return res;
2676         }
2677                 break;
2678
2679 #ifdef CONFIG_VIDEO_V4L2
2680
2681                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2682                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2683                  */
2684
2685         case VIDIOC_QUERYCAP:
2686         {
2687                 struct v4l2_capability *cap = arg;
2688
2689                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2690
2691                 memset(cap, 0, sizeof(*cap));
2692                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2693                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2694                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2695                          pci_name(zr->pci_dev));
2696                 cap->version =
2697                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2698                                    RELEASE_VERSION);
2699                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2700
2701                 return 0;
2702         }
2703                 break;
2704
2705         case VIDIOC_ENUM_FMT:
2706         {
2707                 struct v4l2_fmtdesc *fmt = arg;
2708                 int index = fmt->index, num = -1, i, flag = 0, type =
2709                     fmt->type;
2710
2711                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2712                         ZR_DEVNAME(zr), fmt->index);
2713
2714                 switch (fmt->type) {
2715                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2716                         flag = ZORAN_FORMAT_CAPTURE;
2717                         break;
2718                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2719                         flag = ZORAN_FORMAT_PLAYBACK;
2720                         break;
2721                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2722                         flag = ZORAN_FORMAT_OVERLAY;
2723                         break;
2724                 default:
2725                         dprintk(1,
2726                                 KERN_ERR
2727                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2728                                 ZR_DEVNAME(zr), fmt->type);
2729                         return -EINVAL;
2730                 }
2731
2732                 for (i = 0; i < zoran_num_formats; i++) {
2733                         if (zoran_formats[i].flags & flag)
2734                                 num++;
2735                         if (num == fmt->index)
2736                                 break;
2737                 }
2738                 if (fmt->index < 0 /* late, but not too late */  ||
2739                     i == zoran_num_formats)
2740                         return -EINVAL;
2741
2742                 memset(fmt, 0, sizeof(*fmt));
2743                 fmt->index = index;
2744                 fmt->type = type;
2745                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2746                 fmt->pixelformat = zoran_formats[i].fourcc;
2747                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2748                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2749
2750                 return 0;
2751         }
2752                 break;
2753
2754         case VIDIOC_G_FMT:
2755         {
2756                 struct v4l2_format *fmt = arg;
2757                 int type = fmt->type;
2758
2759                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2760
2761                 memset(fmt, 0, sizeof(*fmt));
2762                 fmt->type = type;
2763
2764                 switch (fmt->type) {
2765                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2766
2767                         mutex_lock(&zr->resource_lock);
2768
2769                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2770                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2771                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2772                         fmt->fmt.win.w.height =
2773                             fh->overlay_settings.height;
2774                         if (fh->overlay_settings.width * 2 >
2775                             BUZ_MAX_HEIGHT)
2776                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2777                         else
2778                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2779
2780                         mutex_unlock(&zr->resource_lock);
2781
2782                         break;
2783
2784                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2785                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2786
2787                         mutex_lock(&zr->resource_lock);
2788
2789                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2790                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2791
2792                                 fmt->fmt.pix.width =
2793                                     fh->v4l_settings.width;
2794                                 fmt->fmt.pix.height =
2795                                     fh->v4l_settings.height;
2796                                 fmt->fmt.pix.sizeimage =
2797                                     fh->v4l_buffers.buffer_size;
2798                                 fmt->fmt.pix.pixelformat =
2799                                     fh->v4l_settings.format->fourcc;
2800                                 fmt->fmt.pix.colorspace =
2801                                     fh->v4l_settings.format->colorspace;
2802                                 fmt->fmt.pix.bytesperline = 0;
2803                                 if (BUZ_MAX_HEIGHT <
2804                                     (fh->v4l_settings.height * 2))
2805                                         fmt->fmt.pix.field =
2806                                             V4L2_FIELD_INTERLACED;
2807                                 else
2808                                         fmt->fmt.pix.field =
2809                                             V4L2_FIELD_TOP;
2810
2811                         } else {
2812
2813                                 fmt->fmt.pix.width =
2814                                     fh->jpg_settings.img_width /
2815                                     fh->jpg_settings.HorDcm;
2816                                 fmt->fmt.pix.height =
2817                                     fh->jpg_settings.img_height /
2818                                     (fh->jpg_settings.VerDcm *
2819                                      fh->jpg_settings.TmpDcm);
2820                                 fmt->fmt.pix.sizeimage =
2821                                     zoran_v4l2_calc_bufsize(&fh->
2822                                                             jpg_settings);
2823                                 fmt->fmt.pix.pixelformat =
2824                                     V4L2_PIX_FMT_MJPEG;
2825                                 if (fh->jpg_settings.TmpDcm == 1)
2826                                         fmt->fmt.pix.field =
2827                                             (fh->jpg_settings.
2828                                              odd_even ? V4L2_FIELD_SEQ_BT :
2829                                              V4L2_FIELD_SEQ_BT);
2830                                 else
2831                                         fmt->fmt.pix.field =
2832                                             (fh->jpg_settings.
2833                                              odd_even ? V4L2_FIELD_TOP :
2834                                              V4L2_FIELD_BOTTOM);
2835
2836                                 fmt->fmt.pix.bytesperline = 0;
2837                                 fmt->fmt.pix.colorspace =
2838                                     V4L2_COLORSPACE_SMPTE170M;
2839                         }
2840
2841                         mutex_unlock(&zr->resource_lock);
2842
2843                         break;
2844
2845                 default:
2846                         dprintk(1,
2847                                 KERN_ERR
2848                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2849                                 ZR_DEVNAME(zr), fmt->type);
2850                         return -EINVAL;
2851                 }
2852                 return 0;
2853         }
2854                 break;
2855
2856         case VIDIOC_S_FMT:
2857         {
2858                 struct v4l2_format *fmt = arg;
2859                 int i, res = 0;
2860                 __u32 printformat;
2861
2862                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2863                         ZR_DEVNAME(zr), fmt->type);
2864
2865                 switch (fmt->type) {
2866                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2867
2868                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2869                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2870                                 fmt->fmt.win.w.width,
2871                                 fmt->fmt.win.w.height,
2872                                 fmt->fmt.win.clipcount,
2873                                 fmt->fmt.win.bitmap);
2874                         mutex_lock(&zr->resource_lock);
2875                         res =
2876                             setup_window(file, fmt->fmt.win.w.left,
2877                                          fmt->fmt.win.w.top,
2878                                          fmt->fmt.win.w.width,
2879                                          fmt->fmt.win.w.height,
2880                                          (struct video_clip __user *)
2881                                            fmt->fmt.win.clips,
2882                                          fmt->fmt.win.clipcount,
2883                                          fmt->fmt.win.bitmap);
2884                         mutex_unlock(&zr->resource_lock);
2885                         return res;
2886                         break;
2887
2888                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2889                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2890
2891                         printformat =
2892                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2893                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2894                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2895                                 fmt->fmt.pix.pixelformat,
2896                                 (char *) &printformat);
2897
2898                         if (fmt->fmt.pix.bytesperline > 0) {
2899                                 dprintk(5,
2900                                         KERN_ERR "%s: bpl not supported\n",
2901                                         ZR_DEVNAME(zr));
2902                                 return -EINVAL;
2903                         }
2904
2905                         /* we can be requested to do JPEG/raw playback/capture */
2906                         if (!
2907                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2908                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2909                               fmt->fmt.pix.pixelformat ==
2910                               V4L2_PIX_FMT_MJPEG))) {
2911                                 dprintk(1,
2912                                         KERN_ERR
2913                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2914                                         ZR_DEVNAME(zr), fmt->type,
2915                                         fmt->fmt.pix.pixelformat,
2916                                         (char *) &printformat);
2917                                 return -EINVAL;
2918                         }
2919
2920                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2921                                 mutex_lock(&zr->resource_lock);
2922
2923                                 settings = fh->jpg_settings;
2924
2925                                 if (fh->v4l_buffers.allocated ||
2926                                     fh->jpg_buffers.allocated) {
2927                                         dprintk(1,
2928                                                 KERN_ERR
2929                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2930                                                 ZR_DEVNAME(zr));
2931                                         res = -EBUSY;
2932                                         goto sfmtjpg_unlock_and_return;
2933                                 }
2934
2935                                 /* we actually need to set 'real' parameters now */
2936                                 if ((fmt->fmt.pix.height * 2) >
2937                                     BUZ_MAX_HEIGHT)
2938                                         settings.TmpDcm = 1;
2939                                 else
2940                                         settings.TmpDcm = 2;
2941                                 settings.decimation = 0;
2942                                 if (fmt->fmt.pix.height <=
2943                                     fh->jpg_settings.img_height / 2)
2944                                         settings.VerDcm = 2;
2945                                 else
2946                                         settings.VerDcm = 1;
2947                                 if (fmt->fmt.pix.width <=
2948                                     fh->jpg_settings.img_width / 4)
2949                                         settings.HorDcm = 4;
2950                                 else if (fmt->fmt.pix.width <=
2951                                          fh->jpg_settings.img_width / 2)
2952                                         settings.HorDcm = 2;
2953                                 else
2954                                         settings.HorDcm = 1;
2955                                 if (settings.TmpDcm == 1)
2956                                         settings.field_per_buff = 2;
2957                                 else
2958                                         settings.field_per_buff = 1;
2959
2960                                 /* check */
2961                                 if ((res =
2962                                      zoran_check_jpg_settings(zr,
2963                                                               &settings)))
2964                                         goto sfmtjpg_unlock_and_return;
2965
2966                                 /* it's ok, so set them */
2967                                 fh->jpg_settings = settings;
2968
2969                                 /* tell the user what we actually did */
2970                                 fmt->fmt.pix.width =
2971                                     settings.img_width / settings.HorDcm;
2972                                 fmt->fmt.pix.height =
2973                                     settings.img_height * 2 /
2974                                     (settings.TmpDcm * settings.VerDcm);
2975                                 if (settings.TmpDcm == 1)
2976                                         fmt->fmt.pix.field =
2977                                             (fh->jpg_settings.
2978                                              odd_even ? V4L2_FIELD_SEQ_TB :
2979                                              V4L2_FIELD_SEQ_BT);
2980                                 else
2981                                         fmt->fmt.pix.field =
2982                                             (fh->jpg_settings.
2983                                              odd_even ? V4L2_FIELD_TOP :
2984                                              V4L2_FIELD_BOTTOM);
2985                                 fh->jpg_buffers.buffer_size =
2986                                     zoran_v4l2_calc_bufsize(&fh->
2987                                                             jpg_settings);
2988                                 fmt->fmt.pix.sizeimage =
2989                                     fh->jpg_buffers.buffer_size;
2990
2991                                 /* we hereby abuse this variable to show that
2992                                  * we're gonna do mjpeg capture */
2993                                 fh->map_mode =
2994                                     (fmt->type ==
2995                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2996                                     ZORAN_MAP_MODE_JPG_REC :
2997                                     ZORAN_MAP_MODE_JPG_PLAY;
2998                         sfmtjpg_unlock_and_return:
2999                                 mutex_unlock(&zr->resource_lock);
3000                         } else {
3001                                 for (i = 0; i < zoran_num_formats; i++)
3002                                         if (fmt->fmt.pix.pixelformat ==
3003                                             zoran_formats[i].fourcc)
3004                                                 break;
3005                                 if (i == zoran_num_formats) {
3006                                         dprintk(1,
3007                                                 KERN_ERR
3008                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
3009                                                 ZR_DEVNAME(zr),
3010                                                 fmt->fmt.pix.pixelformat,
3011                                                 (char *) &printformat);
3012                                         return -EINVAL;
3013                                 }
3014                                 mutex_lock(&zr->resource_lock);
3015                                 if (fh->jpg_buffers.allocated ||
3016                                     (fh->v4l_buffers.allocated &&
3017                                      fh->v4l_buffers.active !=
3018                                      ZORAN_FREE)) {
3019                                         dprintk(1,
3020                                                 KERN_ERR
3021                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
3022                                                 ZR_DEVNAME(zr));
3023                                         res = -EBUSY;
3024                                         goto sfmtv4l_unlock_and_return;
3025                                 }
3026                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
3027                                         fmt->fmt.pix.height =
3028                                             BUZ_MAX_HEIGHT;
3029                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
3030                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
3031
3032                                 if ((res =
3033                                      zoran_v4l_set_format(file,
3034                                                           fmt->fmt.pix.
3035                                                           width,
3036                                                           fmt->fmt.pix.
3037                                                           height,
3038                                                           &zoran_formats
3039                                                           [i])))
3040                                         goto sfmtv4l_unlock_and_return;
3041
3042                                 /* tell the user the
3043                                  * results/missing stuff */
3044                                 fmt->fmt.pix.sizeimage = fh->v4l_buffers.buffer_size    /*zr->gbpl * zr->gheight */
3045                                     ;
3046                                 if (BUZ_MAX_HEIGHT <
3047                                     (fh->v4l_settings.height * 2))
3048                                         fmt->fmt.pix.field =
3049                                             V4L2_FIELD_INTERLACED;
3050                                 else
3051                                         fmt->fmt.pix.field =
3052                                             V4L2_FIELD_TOP;
3053
3054                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
3055                         sfmtv4l_unlock_and_return:
3056                                 mutex_unlock(&zr->resource_lock);
3057                         }
3058
3059                         break;
3060
3061                 default:
3062                         dprintk(3, "unsupported\n");
3063                         dprintk(1,
3064                                 KERN_ERR
3065                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3066                                 ZR_DEVNAME(zr), fmt->type);
3067                         return -EINVAL;
3068                 }
3069
3070                 return res;
3071         }
3072                 break;
3073
3074         case VIDIOC_G_FBUF:
3075         {
3076                 struct v4l2_framebuffer *fb = arg;
3077
3078                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3079
3080                 memset(fb, 0, sizeof(*fb));
3081                 mutex_lock(&zr->resource_lock);
3082                 fb->base = zr->buffer.base;
3083                 fb->fmt.width = zr->buffer.width;
3084                 fb->fmt.height = zr->buffer.height;
3085                 if (zr->overlay_settings.format) {
3086                         fb->fmt.pixelformat =
3087                                 fh->overlay_settings.format->fourcc;
3088                 }
3089                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3090                 mutex_unlock(&zr->resource_lock);
3091                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3092                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3093                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3094                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3095
3096                 return 0;
3097         }
3098                 break;
3099
3100         case VIDIOC_S_FBUF:
3101         {
3102                 int i, res = 0;
3103                 struct v4l2_framebuffer *fb = arg;
3104                 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3105
3106                 dprintk(3,
3107                         KERN_DEBUG
3108                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3109                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3110                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3111                         (char *) &printformat);
3112
3113                 for (i = 0; i < zoran_num_formats; i++)
3114                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3115                                 break;
3116                 if (i == zoran_num_formats) {
3117                         dprintk(1,
3118                                 KERN_ERR
3119                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3120                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3121                                 (char *) &printformat);
3122                         return -EINVAL;
3123                 }
3124
3125                 mutex_lock(&zr->resource_lock);
3126                 res =
3127                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3128                                   fb->fmt.width, fb->fmt.height,
3129                                   fb->fmt.bytesperline);
3130                 mutex_unlock(&zr->resource_lock);
3131
3132                 return res;
3133         }
3134                 break;
3135
3136         case VIDIOC_OVERLAY:
3137         {
3138                 int *on = arg, res;
3139
3140                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3141                         ZR_DEVNAME(zr), *on);
3142
3143                 mutex_lock(&zr->resource_lock);
3144                 res = setup_overlay(file, *on);
3145                 mutex_unlock(&zr->resource_lock);
3146
3147                 return res;
3148         }
3149                 break;
3150
3151         case VIDIOC_REQBUFS:
3152         {
3153                 struct v4l2_requestbuffers *req = arg;
3154                 int res = 0;
3155
3156                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3157                         ZR_DEVNAME(zr), req->type);
3158
3159                 if (req->memory != V4L2_MEMORY_MMAP) {
3160                         dprintk(1,
3161                                 KERN_ERR
3162                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3163                                 ZR_DEVNAME(zr), req->memory);
3164                         return -EINVAL;
3165                 }
3166
3167                 mutex_lock(&zr->resource_lock);
3168
3169                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3170                         dprintk(1,
3171                                 KERN_ERR
3172                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3173                                 ZR_DEVNAME(zr));
3174                         res = -EBUSY;
3175                         goto v4l2reqbuf_unlock_and_return;
3176                 }
3177
3178                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3179                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3180
3181                         /* control user input */
3182                         if (req->count < 2)
3183                                 req->count = 2;
3184                         if (req->count > v4l_nbufs)
3185                                 req->count = v4l_nbufs;
3186                         fh->v4l_buffers.num_buffers = req->count;
3187
3188                         if (v4l_fbuffer_alloc(file)) {
3189                                 res = -ENOMEM;
3190                                 goto v4l2reqbuf_unlock_and_return;
3191                         }
3192
3193                         /* The next mmap will map the V4L buffers */
3194                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3195
3196                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3197                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3198
3199                         /* we need to calculate size ourselves now */
3200                         if (req->count < 4)
3201                                 req->count = 4;
3202                         if (req->count > jpg_nbufs)
3203                                 req->count = jpg_nbufs;
3204                         fh->jpg_buffers.num_buffers = req->count;
3205                         fh->jpg_buffers.buffer_size =
3206                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3207
3208                         if (jpg_fbuffer_alloc(file)) {
3209                                 res = -ENOMEM;
3210                                 goto v4l2reqbuf_unlock_and_return;
3211                         }
3212
3213                         /* The next mmap will map the MJPEG buffers */
3214                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3215                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3216                         else
3217                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3218
3219                 } else {
3220                         dprintk(1,
3221                                 KERN_ERR
3222                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3223                                 ZR_DEVNAME(zr), req->type);
3224                         res = -EINVAL;
3225                         goto v4l2reqbuf_unlock_and_return;
3226                 }
3227         v4l2reqbuf_unlock_and_return:
3228                 mutex_unlock(&zr->resource_lock);
3229
3230                 return 0;
3231         }
3232                 break;
3233
3234         case VIDIOC_QUERYBUF:
3235         {
3236                 struct v4l2_buffer *buf = arg;
3237                 __u32 type = buf->type;
3238                 int index = buf->index, res;
3239
3240                 dprintk(3,
3241                         KERN_DEBUG
3242                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3243                         ZR_DEVNAME(zr), buf->index, buf->type);
3244
3245                 memset(buf, 0, sizeof(buf));
3246                 buf->type = type;
3247                 buf->index = index;
3248
3249                 mutex_lock(&zr->resource_lock);
3250                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3251                 mutex_unlock(&zr->resource_lock);
3252
3253                 return res;
3254         }
3255                 break;
3256
3257         case VIDIOC_QBUF:
3258         {
3259                 struct v4l2_buffer *buf = arg;
3260                 int res = 0, codec_mode, buf_type;
3261
3262                 dprintk(3,
3263                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3264                         ZR_DEVNAME(zr), buf->type, buf->index);
3265
3266                 mutex_lock(&zr->resource_lock);
3267
3268                 switch (fh->map_mode) {
3269                 case ZORAN_MAP_MODE_RAW:
3270                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3271                                 dprintk(1,
3272                                         KERN_ERR
3273                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3274                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3275                                 res = -EINVAL;
3276                                 goto qbuf_unlock_and_return;
3277                         }
3278
3279                         res = zoran_v4l_queue_frame(file, buf->index);
3280                         if (res)
3281                                 goto qbuf_unlock_and_return;
3282                         if (!zr->v4l_memgrab_active &&
3283                             fh->v4l_buffers.active == ZORAN_LOCKED)
3284                                 zr36057_set_memgrab(zr, 1);
3285                         break;
3286
3287                 case ZORAN_MAP_MODE_JPG_REC:
3288                 case ZORAN_MAP_MODE_JPG_PLAY:
3289                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3290                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3291                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3292                         } else {
3293                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3294                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3295                         }
3296
3297                         if (buf->type != buf_type) {
3298                                 dprintk(1,
3299                                         KERN_ERR
3300                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3301                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3302                                 res = -EINVAL;
3303                                 goto qbuf_unlock_and_return;
3304                         }
3305
3306                         res =
3307                             zoran_jpg_queue_frame(file, buf->index,
3308                                                   codec_mode);
3309                         if (res != 0)
3310                                 goto qbuf_unlock_and_return;
3311                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3312                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3313                                 zr36057_enable_jpg(zr, codec_mode);
3314                         }
3315                         break;
3316
3317                 default:
3318                         dprintk(1,
3319                                 KERN_ERR
3320                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3321                                 ZR_DEVNAME(zr), buf->type);
3322                         res = -EINVAL;
3323                         goto qbuf_unlock_and_return;
3324                 }
3325         qbuf_unlock_and_return:
3326                 mutex_unlock(&zr->resource_lock);
3327
3328                 return res;
3329         }
3330                 break;
3331
3332         case VIDIOC_DQBUF:
3333         {
3334                 struct v4l2_buffer *buf = arg;
3335                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3336
3337                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3338                         ZR_DEVNAME(zr), buf->type);
3339
3340                 mutex_lock(&zr->resource_lock);
3341
3342                 switch (fh->map_mode) {
3343                 case ZORAN_MAP_MODE_RAW:
3344                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3345                                 dprintk(1,
3346                                         KERN_ERR
3347                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3348                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3349                                 res = -EINVAL;
3350                                 goto dqbuf_unlock_and_return;
3351                         }
3352
3353                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3354                         if (file->f_flags & O_NONBLOCK &&
3355                             zr->v4l_buffers.buffer[num].state !=
3356                             BUZ_STATE_DONE) {
3357                                 res = -EAGAIN;
3358                                 goto dqbuf_unlock_and_return;
3359                         }
3360                         res = v4l_sync(file, num);
3361                         if (res)
3362                                 goto dqbuf_unlock_and_return;
3363                         else
3364                                 zr->v4l_sync_tail++;
3365                         res = zoran_v4l2_buffer_status(file, buf, num);
3366                         break;
3367
3368                 case ZORAN_MAP_MODE_JPG_REC:
3369                 case ZORAN_MAP_MODE_JPG_PLAY:
3370                 {
3371                         struct zoran_sync bs;
3372
3373                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3374                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3375                         else
3376                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3377
3378                         if (buf->type != buf_type) {
3379                                 dprintk(1,
3380                                         KERN_ERR
3381                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3382                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3383                                 res = -EINVAL;
3384                                 goto dqbuf_unlock_and_return;
3385                         }
3386
3387                         num =
3388                             zr->jpg_pend[zr->
3389                                          jpg_que_tail & BUZ_MASK_FRAME];
3390
3391                         if (file->f_flags & O_NONBLOCK &&
3392                             zr->jpg_buffers.buffer[num].state !=
3393                             BUZ_STATE_DONE) {
3394                                 res = -EAGAIN;
3395                                 goto dqbuf_unlock_and_return;
3396                         }
3397                         res = jpg_sync(file, &bs);
3398                         if (res)
3399                                 goto dqbuf_unlock_and_return;
3400                         res =
3401                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3402                         break;
3403                 }
3404
3405                 default:
3406                         dprintk(1,
3407                                 KERN_ERR
3408                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3409                                 ZR_DEVNAME(zr), buf->type);
3410                         res = -EINVAL;
3411                         goto dqbuf_unlock_and_return;
3412                 }
3413         dqbuf_unlock_and_return:
3414                 mutex_unlock(&zr->resource_lock);
3415
3416                 return res;
3417         }
3418                 break;
3419
3420         case VIDIOC_STREAMON:
3421         {
3422                 int res = 0;
3423
3424                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3425
3426                 mutex_lock(&zr->resource_lock);
3427
3428                 switch (fh->map_mode) {
3429                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3430                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3431                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3432                                 res = -EBUSY;
3433                                 goto strmon_unlock_and_return;
3434                         }
3435
3436                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3437                             ZORAN_LOCKED;
3438                         zr->v4l_settings = fh->v4l_settings;
3439
3440                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3441                         if (!zr->v4l_memgrab_active &&
3442                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3443                                 zr36057_set_memgrab(zr, 1);
3444                         }
3445                         break;
3446
3447                 case ZORAN_MAP_MODE_JPG_REC:
3448                 case ZORAN_MAP_MODE_JPG_PLAY:
3449                         /* what is the codec mode right now? */
3450                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3451                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3452                                 res = -EBUSY;
3453                                 goto strmon_unlock_and_return;
3454                         }
3455
3456                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3457                             ZORAN_LOCKED;
3458
3459                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3460                                 /* Start the jpeg codec when the first frame is queued  */
3461                                 jpeg_start(zr);
3462                         }
3463
3464                         break;
3465                 default:
3466                         dprintk(1,
3467                                 KERN_ERR
3468                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3469                                 ZR_DEVNAME(zr), fh->map_mode);
3470                         res = -EINVAL;
3471                         goto strmon_unlock_and_return;
3472                 }
3473         strmon_unlock_and_return:
3474                 mutex_unlock(&zr->resource_lock);
3475
3476                 return res;
3477         }
3478                 break;
3479
3480         case VIDIOC_STREAMOFF:
3481         {
3482                 int i, res = 0;
3483
3484                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3485
3486                 mutex_lock(&zr->resource_lock);
3487
3488                 switch (fh->map_mode) {
3489                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3490                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3491                             zr->v4l_buffers.active != ZORAN_FREE) {
3492                                 res = -EPERM;   /* stay off other's settings! */
3493                                 goto strmoff_unlock_and_return;
3494                         }
3495                         if (zr->v4l_buffers.active == ZORAN_FREE)
3496                                 goto strmoff_unlock_and_return;
3497
3498                         /* unload capture */
3499                         if (zr->v4l_memgrab_active)
3500                                 zr36057_set_memgrab(zr, 0);
3501
3502                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3503                                 zr->v4l_buffers.buffer[i].state =
3504                                     BUZ_STATE_USER;
3505                         fh->v4l_buffers = zr->v4l_buffers;
3506
3507                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3508                             ZORAN_FREE;
3509
3510                         zr->v4l_grab_seq = 0;
3511                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3512                         zr->v4l_sync_tail = 0;
3513
3514                         break;
3515
3516                 case ZORAN_MAP_MODE_JPG_REC:
3517                 case ZORAN_MAP_MODE_JPG_PLAY:
3518                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3519                             zr->jpg_buffers.active != ZORAN_FREE) {
3520                                 res = -EPERM;   /* stay off other's settings! */
3521                                 goto strmoff_unlock_and_return;
3522                         }
3523                         if (zr->jpg_buffers.active == ZORAN_FREE)
3524                                 goto strmoff_unlock_and_return;
3525
3526                         res =
3527                             jpg_qbuf(file, -1,
3528                                      (fh->map_mode ==
3529                                       ZORAN_MAP_MODE_JPG_REC) ?
3530                                      BUZ_MODE_MOTION_COMPRESS :
3531                                      BUZ_MODE_MOTION_DECOMPRESS);
3532                         if (res)
3533                                 goto strmoff_unlock_and_return;
3534                         break;
3535                 default:
3536                         dprintk(1,
3537                                 KERN_ERR
3538                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3539                                 ZR_DEVNAME(zr), fh->map_mode);
3540                         res = -EINVAL;
3541                         goto strmoff_unlock_and_return;
3542                 }
3543         strmoff_unlock_and_return:
3544                 mutex_unlock(&zr->resource_lock);
3545
3546                 return res;
3547         }
3548                 break;
3549
3550         case VIDIOC_QUERYCTRL:
3551         {
3552                 struct v4l2_queryctrl *ctrl = arg;
3553
3554                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3555                         ZR_DEVNAME(zr), ctrl->id);
3556
3557                 /* we only support hue/saturation/contrast/brightness */
3558                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3559                     ctrl->id > V4L2_CID_HUE)
3560                         return -EINVAL;
3561                 else {
3562                         int id = ctrl->id;
3563                         memset(ctrl, 0, sizeof(*ctrl));
3564                         ctrl->id = id;
3565                 }
3566
3567                 switch (ctrl->id) {
3568                 case V4L2_CID_BRIGHTNESS:
3569                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3570                         break;
3571                 case V4L2_CID_CONTRAST:
3572                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3573                         break;
3574                 case V4L2_CID_SATURATION:
3575                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3576                         break;
3577                 case V4L2_CID_HUE:
3578                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3579                         break;
3580                 }
3581
3582                 ctrl->minimum = 0;
3583                 ctrl->maximum = 65535;
3584                 ctrl->step = 1;
3585                 ctrl->default_value = 32768;
3586                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3587
3588                 return 0;
3589         }
3590                 break;
3591
3592         case VIDIOC_G_CTRL:
3593         {
3594                 struct v4l2_control *ctrl = arg;
3595
3596                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3597                         ZR_DEVNAME(zr), ctrl->id);
3598
3599                 /* we only support hue/saturation/contrast/brightness */
3600                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3601                     ctrl->id > V4L2_CID_HUE)
3602                         return -EINVAL;
3603
3604                 mutex_lock(&zr->resource_lock);
3605                 switch (ctrl->id) {
3606                 case V4L2_CID_BRIGHTNESS:
3607                         ctrl->value = zr->brightness;
3608                         break;
3609                 case V4L2_CID_CONTRAST:
3610                         ctrl->value = zr->contrast;
3611                         break;
3612                 case V4L2_CID_SATURATION:
3613                         ctrl->value = zr->saturation;
3614                         break;
3615                 case V4L2_CID_HUE:
3616                         ctrl->value = zr->hue;
3617                         break;
3618                 }
3619                 mutex_unlock(&zr->resource_lock);
3620
3621                 return 0;
3622         }
3623                 break;
3624
3625         case VIDIOC_S_CTRL:
3626         {
3627                 struct v4l2_control *ctrl = arg;
3628                 struct video_picture pict;
3629
3630                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3631                         ZR_DEVNAME(zr), ctrl->id);
3632
3633                 /* we only support hue/saturation/contrast/brightness */
3634                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3635                     ctrl->id > V4L2_CID_HUE)
3636                         return -EINVAL;
3637
3638                 if (ctrl->value < 0 || ctrl->value > 65535) {
3639                         dprintk(1,
3640                                 KERN_ERR
3641                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3642                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3643                         return -EINVAL;
3644                 }
3645
3646                 mutex_lock(&zr->resource_lock);
3647                 switch (ctrl->id) {
3648                 case V4L2_CID_BRIGHTNESS:
3649                         zr->brightness = ctrl->value;
3650                         break;
3651                 case V4L2_CID_CONTRAST:
3652                         zr->contrast = ctrl->value;
3653                         break;
3654                 case V4L2_CID_SATURATION:
3655                         zr->saturation = ctrl->value;
3656                         break;
3657                 case V4L2_CID_HUE:
3658                         zr->hue = ctrl->value;
3659                         break;
3660                 }
3661                 pict.brightness = zr->brightness;
3662                 pict.contrast = zr->contrast;
3663                 pict.colour = zr->saturation;
3664                 pict.hue = zr->hue;
3665
3666                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3667
3668                 mutex_unlock(&zr->resource_lock);
3669
3670                 return 0;
3671         }
3672                 break;
3673
3674         case VIDIOC_ENUMSTD:
3675         {
3676                 struct v4l2_standard *std = arg;
3677
3678                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3679                         ZR_DEVNAME(zr), std->index);
3680
3681                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3682                         return -EINVAL;
3683                 else {
3684                         int id = std->index;
3685                         memset(std, 0, sizeof(*std));
3686                         std->index = id;
3687                 }
3688
3689                 if (std->index == zr->card.norms) {
3690                         /* if we have autodetect, ... */
3691                         struct video_decoder_capability caps;
3692                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3693                                         &caps);
3694                         if (caps.flags & VIDEO_DECODER_AUTO) {
3695                                 std->id = V4L2_STD_ALL;
3696                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3697                                 return 0;
3698                         } else
3699                                 return -EINVAL;
3700                 }
3701                 switch (std->index) {
3702                 case 0:
3703                         std->id = V4L2_STD_PAL;
3704                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3705                         std->frameperiod.numerator = 1;
3706                         std->frameperiod.denominator = 25;
3707                         std->framelines = zr->card.tvn[0]->Ht;
3708                         break;
3709                 case 1:
3710                         std->id = V4L2_STD_NTSC;
3711                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3712                         std->frameperiod.numerator = 1001;
3713                         std->frameperiod.denominator = 30000;
3714                         std->framelines = zr->card.tvn[1]->Ht;
3715                         break;
3716                 case 2:
3717                         std->id = V4L2_STD_SECAM;
3718                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3719                         std->frameperiod.numerator = 1;
3720                         std->frameperiod.denominator = 25;
3721                         std->framelines = zr->card.tvn[2]->Ht;
3722                         break;
3723                 }
3724
3725                 return 0;
3726         }
3727                 break;
3728
3729         case VIDIOC_G_STD:
3730         {
3731                 v4l2_std_id *std = arg;
3732                 int norm;
3733
3734                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3735
3736                 mutex_lock(&zr->resource_lock);
3737                 norm = zr->norm;
3738                 mutex_unlock(&zr->resource_lock);
3739
3740                 switch (norm) {
3741                 case VIDEO_MODE_PAL:
3742                         *std = V4L2_STD_PAL;
3743                         break;
3744                 case VIDEO_MODE_NTSC:
3745                         *std = V4L2_STD_NTSC;
3746                         break;
3747                 case VIDEO_MODE_SECAM:
3748                         *std = V4L2_STD_SECAM;
3749                         break;
3750                 }
3751
3752                 return 0;
3753         }
3754                 break;
3755
3756         case VIDIOC_S_STD:
3757         {
3758                 int norm = -1, res = 0;
3759                 v4l2_std_id *std = arg;
3760
3761                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3762                         ZR_DEVNAME(zr), (unsigned long long)*std);
3763
3764                 if (*std == V4L2_STD_PAL)
3765                         norm = VIDEO_MODE_PAL;
3766                 else if (*std == V4L2_STD_NTSC)
3767                         norm = VIDEO_MODE_NTSC;
3768                 else if (*std == V4L2_STD_SECAM)
3769                         norm = VIDEO_MODE_SECAM;
3770                 else if (*std == V4L2_STD_ALL)
3771                         norm = VIDEO_MODE_AUTO;
3772                 else {
3773                         dprintk(1,
3774                                 KERN_ERR
3775                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3776                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3777                         return -EINVAL;
3778                 }
3779
3780                 mutex_lock(&zr->resource_lock);
3781                 if ((res = zoran_set_norm(zr, norm)))
3782                         goto sstd_unlock_and_return;
3783
3784                 res = wait_grab_pending(zr);
3785         sstd_unlock_and_return:
3786                 mutex_unlock(&zr->resource_lock);
3787                 return res;
3788         }
3789                 break;
3790
3791         case VIDIOC_ENUMINPUT:
3792         {
3793                 struct v4l2_input *inp = arg;
3794                 int status;
3795
3796                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3797                         ZR_DEVNAME(zr), inp->index);
3798
3799                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3800                         return -EINVAL;
3801                 else {
3802                         int id = inp->index;
3803                         memset(inp, 0, sizeof(*inp));
3804                         inp->index = id;
3805                 }
3806
3807                 strncpy(inp->name, zr->card.input[inp->index].name,
3808                         sizeof(inp->name) - 1);
3809                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3810                 inp->std = V4L2_STD_ALL;
3811
3812                 /* Get status of video decoder */
3813                 mutex_lock(&zr->resource_lock);
3814                 decoder_command(zr, DECODER_GET_STATUS, &status);
3815                 mutex_unlock(&zr->resource_lock);
3816
3817                 if (!(status & DECODER_STATUS_GOOD)) {
3818                         inp->status |= V4L2_IN_ST_NO_POWER;
3819                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3820                 }
3821                 if (!(status & DECODER_STATUS_COLOR))
3822                         inp->status |= V4L2_IN_ST_NO_COLOR;
3823
3824                 return 0;
3825         }
3826                 break;
3827
3828         case VIDIOC_G_INPUT:
3829         {
3830                 int *input = arg;
3831
3832                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3833
3834                 mutex_lock(&zr->resource_lock);
3835                 *input = zr->input;
3836                 mutex_unlock(&zr->resource_lock);
3837
3838                 return 0;
3839         }
3840                 break;
3841
3842         case VIDIOC_S_INPUT:
3843         {
3844                 int *input = arg, res = 0;
3845
3846                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3847                         ZR_DEVNAME(zr), *input);
3848
3849                 mutex_lock(&zr->resource_lock);
3850                 if ((res = zoran_set_input(zr, *input)))
3851                         goto sinput_unlock_and_return;
3852
3853                 /* Make sure the changes come into effect */
3854                 res = wait_grab_pending(zr);
3855         sinput_unlock_and_return:
3856                 mutex_unlock(&zr->resource_lock);
3857                 return res;
3858         }
3859                 break;
3860
3861         case VIDIOC_ENUMOUTPUT:
3862         {
3863                 struct v4l2_output *outp = arg;
3864
3865                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3866                         ZR_DEVNAME(zr), outp->index);
3867
3868                 if (outp->index != 0)
3869                         return -EINVAL;
3870
3871                 memset(outp, 0, sizeof(*outp));
3872                 outp->index = 0;
3873                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3874                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3875
3876                 return 0;
3877         }
3878                 break;
3879
3880         case VIDIOC_G_OUTPUT:
3881         {
3882                 int *output = arg;
3883
3884                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3885
3886                 *output = 0;
3887
3888                 return 0;
3889         }
3890                 break;
3891
3892         case VIDIOC_S_OUTPUT:
3893         {
3894                 int *output = arg;
3895
3896                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3897                         ZR_DEVNAME(zr), *output);
3898
3899                 if (*output != 0)
3900                         return -EINVAL;
3901
3902                 return 0;
3903         }
3904                 break;
3905
3906                 /* cropping (sub-frame capture) */
3907         case VIDIOC_CROPCAP:
3908         {
3909                 struct v4l2_cropcap *cropcap = arg;
3910                 int type = cropcap->type, res = 0;
3911
3912                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3913                         ZR_DEVNAME(zr), cropcap->type);
3914
3915                 memset(cropcap, 0, sizeof(*cropcap));
3916                 cropcap->type = type;
3917
3918                 mutex_lock(&zr->resource_lock);
3919
3920                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3921                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3922                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3923                         dprintk(1,
3924                                 KERN_ERR
3925                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3926                                 ZR_DEVNAME(zr));
3927                         res = -EINVAL;
3928                         goto cropcap_unlock_and_return;
3929                 }
3930
3931                 cropcap->bounds.top = cropcap->bounds.left = 0;
3932                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3933                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3934                 cropcap->defrect.top = cropcap->defrect.left = 0;
3935                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3936                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3937         cropcap_unlock_and_return:
3938                 mutex_unlock(&zr->resource_lock);
3939                 return res;
3940         }
3941                 break;
3942
3943         case VIDIOC_G_CROP:
3944         {
3945                 struct v4l2_crop *crop = arg;
3946                 int type = crop->type, res = 0;
3947
3948                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3949                         ZR_DEVNAME(zr), crop->type);
3950
3951                 memset(crop, 0, sizeof(*crop));
3952                 crop->type = type;
3953
3954                 mutex_lock(&zr->resource_lock);
3955
3956                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3957                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3958                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3959                         dprintk(1,
3960                                 KERN_ERR
3961                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3962                                 ZR_DEVNAME(zr));
3963                         res = -EINVAL;
3964                         goto gcrop_unlock_and_return;
3965                 }
3966
3967                 crop->c.top = fh->jpg_settings.img_y;
3968                 crop->c.left = fh->jpg_settings.img_x;
3969                 crop->c.width = fh->jpg_settings.img_width;
3970                 crop->c.height = fh->jpg_settings.img_height;
3971
3972         gcrop_unlock_and_return:
3973                 mutex_unlock(&zr->resource_lock);
3974
3975                 return res;
3976         }
3977                 break;
3978
3979         case VIDIOC_S_CROP:
3980         {
3981                 struct v4l2_crop *crop = arg;
3982                 int res = 0;
3983
3984                 settings = fh->jpg_settings;
3985
3986                 dprintk(3,
3987                         KERN_ERR
3988                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3989                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3990                         crop->c.width, crop->c.height);
3991
3992                 mutex_lock(&zr->resource_lock);
3993
3994                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3995                         dprintk(1,
3996                                 KERN_ERR
3997                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3998                                 ZR_DEVNAME(zr));
3999                         res = -EBUSY;
4000                         goto scrop_unlock_and_return;
4001                 }
4002
4003                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
4004                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
4005                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
4006                         dprintk(1,
4007                                 KERN_ERR
4008                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
4009                                 ZR_DEVNAME(zr));
4010                         res = -EINVAL;
4011                         goto scrop_unlock_and_return;
4012                 }
4013
4014                 /* move into a form that we understand */
4015                 settings.img_x = crop->c.left;
4016                 settings.img_y = crop->c.top;
4017                 settings.img_width = crop->c.width;
4018                 settings.img_height = crop->c.height;
4019
4020                 /* check validity */
4021                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4022                         goto scrop_unlock_and_return;
4023
4024                 /* accept */
4025                 fh->jpg_settings = settings;
4026
4027         scrop_unlock_and_return:
4028                 mutex_unlock(&zr->resource_lock);
4029                 return res;
4030         }
4031                 break;
4032
4033         case VIDIOC_G_JPEGCOMP:
4034         {
4035                 struct v4l2_jpegcompression *params = arg;
4036
4037                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
4038                         ZR_DEVNAME(zr));
4039
4040                 memset(params, 0, sizeof(*params));
4041
4042                 mutex_lock(&zr->resource_lock);
4043
4044                 params->quality = fh->jpg_settings.jpg_comp.quality;
4045                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
4046                 memcpy(params->APP_data,
4047                        fh->jpg_settings.jpg_comp.APP_data,
4048                        fh->jpg_settings.jpg_comp.APP_len);
4049                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
4050                 memcpy(params->COM_data,
4051                        fh->jpg_settings.jpg_comp.COM_data,
4052                        fh->jpg_settings.jpg_comp.COM_len);
4053                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
4054                 params->jpeg_markers =
4055                     fh->jpg_settings.jpg_comp.jpeg_markers;
4056
4057                 mutex_unlock(&zr->resource_lock);
4058
4059                 return 0;
4060         }
4061                 break;
4062
4063         case VIDIOC_S_JPEGCOMP:
4064         {
4065                 struct v4l2_jpegcompression *params = arg;
4066                 int res = 0;
4067
4068                 settings = fh->jpg_settings;
4069
4070                 dprintk(3,
4071                         KERN_DEBUG
4072                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4073                         ZR_DEVNAME(zr), params->quality, params->APPn,
4074                         params->APP_len, params->COM_len);
4075
4076                 settings.jpg_comp = *params;
4077
4078                 mutex_lock(&zr->resource_lock);
4079
4080                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4081                     fh->jpg_buffers.active != ZORAN_FREE) {
4082                         dprintk(1,
4083                                 KERN_WARNING
4084                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4085                                 ZR_DEVNAME(zr));
4086                         res = -EBUSY;
4087                         goto sjpegc_unlock_and_return;
4088                 }
4089
4090                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4091                         goto sjpegc_unlock_and_return;
4092                 if (!fh->jpg_buffers.allocated)
4093                         fh->jpg_buffers.buffer_size =
4094                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4095                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4096         sjpegc_unlock_and_return:
4097                 mutex_unlock(&zr->resource_lock);
4098
4099                 return 0;
4100         }
4101                 break;
4102
4103         case VIDIOC_QUERYSTD:   /* why is this useful? */
4104         {
4105                 v4l2_std_id *std = arg;
4106
4107                 dprintk(3,
4108                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4109                         ZR_DEVNAME(zr), (unsigned long long)*std);
4110
4111                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4112                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4113                                              zr->card.norms == 3)) {
4114                         return 0;
4115                 }
4116
4117                 return -EINVAL;
4118         }
4119                 break;
4120
4121         case VIDIOC_TRY_FMT:
4122         {
4123                 struct v4l2_format *fmt = arg;
4124                 int res = 0;
4125
4126                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4127                         ZR_DEVNAME(zr), fmt->type);
4128
4129                 switch (fmt->type) {
4130                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4131                         mutex_lock(&zr->resource_lock);
4132
4133                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4134                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4135                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4136                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4137                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4138                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4139                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4140                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4141
4142                         mutex_unlock(&zr->resource_lock);
4143                         break;
4144
4145                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4146                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4147                         if (fmt->fmt.pix.bytesperline > 0)
4148                                 return -EINVAL;
4149
4150                         mutex_lock(&zr->resource_lock);
4151
4152                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4153                                 settings = fh->jpg_settings;
4154
4155                                 /* we actually need to set 'real' parameters now */
4156                                 if ((fmt->fmt.pix.height * 2) >
4157                                     BUZ_MAX_HEIGHT)
4158                                         settings.TmpDcm = 1;
4159                                 else
4160                                         settings.TmpDcm = 2;
4161                                 settings.decimation = 0;
4162                                 if (fmt->fmt.pix.height <=
4163                                     fh->jpg_settings.img_height / 2)
4164                                         settings.VerDcm = 2;
4165                                 else
4166                                         settings.VerDcm = 1;
4167                                 if (fmt->fmt.pix.width <=
4168                                     fh->jpg_settings.img_width / 4)
4169                                         settings.HorDcm = 4;
4170                                 else if (fmt->fmt.pix.width <=
4171                                          fh->jpg_settings.img_width / 2)
4172                                         settings.HorDcm = 2;
4173                                 else
4174                                         settings.HorDcm = 1;
4175                                 if (settings.TmpDcm == 1)
4176                                         settings.field_per_buff = 2;
4177                                 else
4178                                         settings.field_per_buff = 1;
4179
4180                                 /* check */
4181                                 if ((res =
4182                                      zoran_check_jpg_settings(zr,
4183                                                               &settings)))
4184                                         goto tryfmt_unlock_and_return;
4185
4186                                 /* tell the user what we actually did */
4187                                 fmt->fmt.pix.width =
4188                                     settings.img_width / settings.HorDcm;
4189                                 fmt->fmt.pix.height =
4190                                     settings.img_height * 2 /
4191                                     (settings.TmpDcm * settings.VerDcm);
4192                                 if (settings.TmpDcm == 1)
4193                                         fmt->fmt.pix.field =
4194                                             (fh->jpg_settings.
4195                                              odd_even ? V4L2_FIELD_SEQ_TB :
4196                                              V4L2_FIELD_SEQ_BT);
4197                                 else
4198                                         fmt->fmt.pix.field =
4199                                             (fh->jpg_settings.
4200                                              odd_even ? V4L2_FIELD_TOP :
4201                                              V4L2_FIELD_BOTTOM);
4202
4203                                 fmt->fmt.pix.sizeimage =
4204                                     zoran_v4l2_calc_bufsize(&settings);
4205                         } else if (fmt->type ==
4206                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4207                                 int i;
4208
4209                                 for (i = 0; i < zoran_num_formats; i++)
4210                                         if (zoran_formats[i].fourcc ==
4211                                             fmt->fmt.pix.pixelformat)
4212                                                 break;
4213                                 if (i == zoran_num_formats) {
4214                                         res = -EINVAL;
4215                                         goto tryfmt_unlock_and_return;
4216                                 }
4217
4218                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4219                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4220                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4221                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4222                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4223                                         fmt->fmt.pix.height =
4224                                             BUZ_MAX_HEIGHT;
4225                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4226                                         fmt->fmt.pix.height =
4227                                             BUZ_MIN_HEIGHT;
4228                         } else {
4229                                 res = -EINVAL;
4230                                 goto tryfmt_unlock_and_return;
4231                         }
4232                 tryfmt_unlock_and_return:
4233                         mutex_unlock(&zr->resource_lock);
4234
4235                         return res;
4236                         break;
4237
4238                 default:
4239                         return -EINVAL;
4240                 }
4241
4242                 return 0;
4243         }
4244                 break;
4245 #endif
4246
4247         default:
4248                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4249                         ZR_DEVNAME(zr), cmd);
4250                 return -ENOIOCTLCMD;
4251                 break;
4252
4253         }
4254         return 0;
4255 }
4256
4257
4258 static int
4259 zoran_ioctl (struct inode *inode,
4260              struct file  *file,
4261              unsigned int  cmd,
4262              unsigned long arg)
4263 {
4264         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4265 }
4266
4267 static unsigned int
4268 zoran_poll (struct file *file,
4269             poll_table  *wait)
4270 {
4271         struct zoran_fh *fh = file->private_data;
4272         struct zoran *zr = fh->zr;
4273         wait_queue_head_t *queue = NULL;
4274         int res = 0, frame;
4275
4276         /* we should check whether buffers are ready to be synced on
4277          * (w/o waits - O_NONBLOCK) here
4278          * if ready for read (sync), return POLLIN|POLLRDNORM,
4279          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4280          * if error, return POLLERR,
4281          * if no buffers queued or so, return POLLNVAL
4282          */
4283
4284         mutex_lock(&zr->resource_lock);
4285
4286         switch (fh->map_mode) {
4287         case ZORAN_MAP_MODE_RAW:
4288                 if (fh->v4l_buffers.active == ZORAN_FREE ||
4289                     zr->v4l_pend_head == zr->v4l_pend_tail) {
4290                         dprintk(1,
4291                                 "%s: zoran_poll() - no buffers queued\n",
4292                                 ZR_DEVNAME(zr));
4293                         res = POLLNVAL;
4294                         goto poll_unlock_and_return;
4295                 }
4296                 queue = &zr->v4l_capq;
4297                 frame = zr->v4l_pend[zr->v4l_pend_tail & V4L_MASK_FRAME];
4298                 poll_wait(file, queue, wait);
4299                 if (fh->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4300                         res = POLLIN | POLLRDNORM;
4301                 break;
4302
4303         case ZORAN_MAP_MODE_JPG_REC:
4304         case ZORAN_MAP_MODE_JPG_PLAY:
4305                 if (fh->jpg_buffers.active == ZORAN_FREE ||
4306                     zr->jpg_que_head == zr->jpg_que_tail) {
4307                         dprintk(1,
4308                                 "%s: zoran_poll() - no buffers queued\n",
4309                                 ZR_DEVNAME(zr));
4310                         res = POLLNVAL;
4311                         goto poll_unlock_and_return;
4312                 }
4313                 queue = &zr->jpg_capq;
4314                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4315                 poll_wait(file, queue, wait);
4316                 if (fh->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4317                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4318                                 res = POLLIN | POLLRDNORM;
4319                         else
4320                                 res = POLLOUT | POLLWRNORM;
4321                 }
4322                 break;
4323
4324         default:
4325                 dprintk(1,
4326                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4327                         ZR_DEVNAME(zr), fh->map_mode);
4328                 res = POLLNVAL;
4329                 goto poll_unlock_and_return;
4330         }
4331
4332 poll_unlock_and_return:
4333         mutex_unlock(&zr->resource_lock);
4334
4335         return res;
4336 }
4337
4338
4339 /*
4340  * This maps the buffers to user space.
4341  *
4342  * Depending on the state of fh->map_mode
4343  * the V4L or the MJPEG buffers are mapped
4344  * per buffer or all together
4345  *
4346  * Note that we need to connect to some
4347  * unmap signal event to unmap the de-allocate
4348  * the buffer accordingly (zoran_vm_close())
4349  */
4350
4351 static void
4352 zoran_vm_open (struct vm_area_struct *vma)
4353 {
4354         struct zoran_mapping *map = vma->vm_private_data;
4355
4356         map->count++;
4357 }
4358
4359 static void
4360 zoran_vm_close (struct vm_area_struct *vma)
4361 {
4362         struct zoran_mapping *map = vma->vm_private_data;
4363         struct file *file = map->file;
4364         struct zoran_fh *fh = file->private_data;
4365         struct zoran *zr = fh->zr;
4366         int i;
4367
4368         map->count--;
4369         if (map->count == 0) {
4370                 switch (fh->map_mode) {
4371                 case ZORAN_MAP_MODE_JPG_REC:
4372                 case ZORAN_MAP_MODE_JPG_PLAY:
4373
4374                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4375                                 ZR_DEVNAME(zr));
4376
4377                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4378                                 if (fh->jpg_buffers.buffer[i].map == map) {
4379                                         fh->jpg_buffers.buffer[i].map =
4380                                             NULL;
4381                                 }
4382                         }
4383                         kfree(map);
4384
4385                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4386                                 if (fh->jpg_buffers.buffer[i].map)
4387                                         break;
4388                         if (i == fh->jpg_buffers.num_buffers) {
4389                                 mutex_lock(&zr->resource_lock);
4390
4391                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4392                                         jpg_qbuf(file, -1, zr->codec_mode);
4393                                         zr->jpg_buffers.allocated = 0;
4394                                         zr->jpg_buffers.active =
4395                                             fh->jpg_buffers.active =
4396                                             ZORAN_FREE;
4397                                 }
4398                                 //jpg_fbuffer_free(file);
4399                                 fh->jpg_buffers.allocated = 0;
4400                                 fh->jpg_buffers.ready_to_be_freed = 1;
4401
4402                                 mutex_unlock(&zr->resource_lock);
4403                         }
4404
4405                         break;
4406
4407                 case ZORAN_MAP_MODE_RAW:
4408
4409                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4410                                 ZR_DEVNAME(zr));
4411
4412                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4413                                 if (fh->v4l_buffers.buffer[i].map == map) {
4414                                         /* unqueue/unmap */
4415                                         fh->v4l_buffers.buffer[i].map =
4416                                             NULL;
4417                                 }
4418                         }
4419                         kfree(map);
4420
4421                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4422                                 if (fh->v4l_buffers.buffer[i].map)
4423                                         break;
4424                         if (i == fh->v4l_buffers.num_buffers) {
4425                                 mutex_lock(&zr->resource_lock);
4426
4427                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4428                                         zr36057_set_memgrab(zr, 0);
4429                                         zr->v4l_buffers.allocated = 0;
4430                                         zr->v4l_buffers.active =
4431                                             fh->v4l_buffers.active =
4432                                             ZORAN_FREE;
4433                                 }
4434                                 //v4l_fbuffer_free(file);
4435                                 fh->v4l_buffers.allocated = 0;
4436                                 fh->v4l_buffers.ready_to_be_freed = 1;
4437
4438                                 mutex_unlock(&zr->resource_lock);
4439                         }
4440
4441                         break;
4442
4443                 default:
4444                         printk(KERN_ERR
4445                                "%s: munmap() - internal error - unknown map mode %d\n",
4446                                ZR_DEVNAME(zr), fh->map_mode);
4447                         break;
4448
4449                 }
4450         }
4451 }
4452
4453 static struct vm_operations_struct zoran_vm_ops = {
4454         .open = zoran_vm_open,
4455         .close = zoran_vm_close,
4456 };
4457
4458 static int
4459 zoran_mmap (struct file           *file,
4460             struct vm_area_struct *vma)
4461 {
4462         struct zoran_fh *fh = file->private_data;
4463         struct zoran *zr = fh->zr;
4464         unsigned long size = (vma->vm_end - vma->vm_start);
4465         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4466         int i, j;
4467         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4468         int first, last;
4469         struct zoran_mapping *map;
4470         int res = 0;
4471
4472         dprintk(3,
4473                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4474                 ZR_DEVNAME(zr),
4475                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4476                 vma->vm_start, vma->vm_end, size);
4477
4478         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4479             !(vma->vm_flags & VM_WRITE)) {
4480                 dprintk(1,
4481                         KERN_ERR
4482                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4483                         ZR_DEVNAME(zr));
4484                 return -EINVAL;
4485         }
4486
4487         switch (fh->map_mode) {
4488
4489         case ZORAN_MAP_MODE_JPG_REC:
4490         case ZORAN_MAP_MODE_JPG_PLAY:
4491
4492                 /* lock */
4493                 mutex_lock(&zr->resource_lock);
4494
4495                 /* Map the MJPEG buffers */
4496                 if (!fh->jpg_buffers.allocated) {
4497                         dprintk(1,
4498                                 KERN_ERR
4499                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4500                                 ZR_DEVNAME(zr));
4501                         res = -ENOMEM;
4502                         goto jpg_mmap_unlock_and_return;
4503                 }
4504
4505                 first = offset / fh->jpg_buffers.buffer_size;
4506                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4507                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4508                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4509                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4510                     last >= fh->jpg_buffers.num_buffers) {
4511                         dprintk(1,
4512                                 KERN_ERR
4513                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4514                                 ZR_DEVNAME(zr), offset, size,
4515                                 fh->jpg_buffers.buffer_size,
4516                                 fh->jpg_buffers.num_buffers);
4517                         res = -EINVAL;
4518                         goto jpg_mmap_unlock_and_return;
4519                 }
4520                 for (i = first; i <= last; i++) {
4521                         if (fh->jpg_buffers.buffer[i].map) {
4522                                 dprintk(1,
4523                                         KERN_ERR
4524                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4525                                         ZR_DEVNAME(zr), i);
4526                                 res = -EBUSY;
4527                                 goto jpg_mmap_unlock_and_return;
4528                         }
4529                 }
4530
4531                 /* map these buffers (v4l_buffers[i]) */
4532                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4533                 if (!map) {
4534                         res = -ENOMEM;
4535                         goto jpg_mmap_unlock_and_return;
4536                 }
4537                 map->file = file;
4538                 map->count = 1;
4539
4540                 vma->vm_ops = &zoran_vm_ops;
4541                 vma->vm_flags |= VM_DONTEXPAND;
4542                 vma->vm_private_data = map;
4543
4544                 for (i = first; i <= last; i++) {
4545                         for (j = 0;
4546                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4547                              j++) {
4548                                 fraglen =
4549                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4550                                      frag_tab[2 * j + 1]) & ~1) << 1;
4551                                 todo = size;
4552                                 if (todo > fraglen)
4553                                         todo = fraglen;
4554                                 pos =
4555                                     le32_to_cpu((unsigned long) fh->jpg_buffers.
4556                                     buffer[i].frag_tab[2 * j]);
4557                                 /* should just be pos on i386 */
4558                                 page = virt_to_phys(bus_to_virt(pos))
4559                                                                 >> PAGE_SHIFT;
4560                                 if (remap_pfn_range(vma, start, page,
4561                                                         todo, PAGE_SHARED)) {
4562                                         dprintk(1,
4563                                                 KERN_ERR
4564                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4565                                                 ZR_DEVNAME(zr));
4566                                         res = -EAGAIN;
4567                                         goto jpg_mmap_unlock_and_return;
4568                                 }
4569                                 size -= todo;
4570                                 start += todo;
4571                                 if (size == 0)
4572                                         break;
4573                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4574                                     frag_tab[2 * j + 1]) & 1)
4575                                         break;  /* was last fragment */
4576                         }
4577                         fh->jpg_buffers.buffer[i].map = map;
4578                         if (size == 0)
4579                                 break;
4580
4581                 }
4582         jpg_mmap_unlock_and_return:
4583                 mutex_unlock(&zr->resource_lock);
4584
4585                 break;
4586
4587         case ZORAN_MAP_MODE_RAW:
4588
4589                 mutex_lock(&zr->resource_lock);
4590
4591                 /* Map the V4L buffers */
4592                 if (!fh->v4l_buffers.allocated) {
4593                         dprintk(1,
4594                                 KERN_ERR
4595                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4596                                 ZR_DEVNAME(zr));
4597                         res = -ENOMEM;
4598                         goto v4l_mmap_unlock_and_return;
4599                 }
4600
4601                 first = offset / fh->v4l_buffers.buffer_size;
4602                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4603                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4604                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4605                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4606                     last >= fh->v4l_buffers.buffer_size) {
4607                         dprintk(1,
4608                                 KERN_ERR
4609                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4610                                 ZR_DEVNAME(zr), offset, size,
4611                                 fh->v4l_buffers.buffer_size,
4612                                 fh->v4l_buffers.num_buffers);
4613                         res = -EINVAL;
4614                         goto v4l_mmap_unlock_and_return;
4615                 }
4616                 for (i = first; i <= last; i++) {
4617                         if (fh->v4l_buffers.buffer[i].map) {
4618                                 dprintk(1,
4619                                         KERN_ERR
4620                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4621                                         ZR_DEVNAME(zr), i);
4622                                 res = -EBUSY;
4623                                 goto v4l_mmap_unlock_and_return;
4624                         }
4625                 }
4626
4627                 /* map these buffers (v4l_buffers[i]) */
4628                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4629                 if (!map) {
4630                         res = -ENOMEM;
4631                         goto v4l_mmap_unlock_and_return;
4632                 }
4633                 map->file = file;
4634                 map->count = 1;
4635
4636                 vma->vm_ops = &zoran_vm_ops;
4637                 vma->vm_flags |= VM_DONTEXPAND;
4638                 vma->vm_private_data = map;
4639
4640                 for (i = first; i <= last; i++) {
4641                         todo = size;
4642                         if (todo > fh->v4l_buffers.buffer_size)
4643                                 todo = fh->v4l_buffers.buffer_size;
4644                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4645                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4646                                                         todo, PAGE_SHARED)) {
4647                                 dprintk(1,
4648                                         KERN_ERR
4649                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4650                                         ZR_DEVNAME(zr));
4651                                 res = -EAGAIN;
4652                                 goto v4l_mmap_unlock_and_return;
4653                         }
4654                         size -= todo;
4655                         start += todo;
4656                         fh->v4l_buffers.buffer[i].map = map;
4657                         if (size == 0)
4658                                 break;
4659                 }
4660         v4l_mmap_unlock_and_return:
4661                 mutex_unlock(&zr->resource_lock);
4662
4663                 break;
4664
4665         default:
4666                 dprintk(1,
4667                         KERN_ERR
4668                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4669                         ZR_DEVNAME(zr), fh->map_mode);
4670                 break;
4671         }
4672
4673         return 0;
4674 }
4675
4676 static struct file_operations zoran_fops = {
4677         .owner = THIS_MODULE,
4678         .open = zoran_open,
4679         .release = zoran_close,
4680         .ioctl = zoran_ioctl,
4681         .compat_ioctl   = v4l_compat_ioctl32,
4682         .llseek = no_llseek,
4683         .read = zoran_read,
4684         .write = zoran_write,
4685         .mmap = zoran_mmap,
4686         .poll = zoran_poll,
4687 };
4688
4689 struct video_device zoran_template __devinitdata = {
4690         .name = ZORAN_NAME,
4691         .type = ZORAN_VID_TYPE,
4692 #ifdef CONFIG_VIDEO_V4L2
4693         .type2 = ZORAN_V4L2_VID_FLAGS,
4694 #endif
4695         .hardware = ZORAN_HARDWARE,
4696         .fops = &zoran_fops,
4697         .release = &zoran_vdev_release,
4698         .minor = -1
4699 };
4700