git.oblomov.eu Git - linux-2.6/blob - 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
  56 #include <linux/interrupt.h>
  57 #include <linux/i2c.h>
  58 #include <linux/i2c-algo-bit.h>
  59
  60 #include <linux/spinlock.h>
  61 #define     MAP_NR(x)       virt_to_page(x)
  62 #define     ZORAN_VID_TYPE  ( \
  63                                 VID_TYPE_CAPTURE | \
  64                                 VID_TYPE_OVERLAY | \
  65                                 VID_TYPE_CLIPPING | \
  66                                 VID_TYPE_FRAMERAM | \
  67                                 VID_TYPE_SCALES | \
  68                                 VID_TYPE_MJPEG_DECODER | \
  69                                 VID_TYPE_MJPEG_ENCODER \
  70                              )
  71
  72 #include <linux/videodev.h>
  73 #include <media/v4l2-common.h>
  74 #include <media/v4l2-ioctl.h>
  75 #include "videocodec.h"
  76
  77 #include <asm/byteorder.h>
  78 #include <asm/io.h>
  79 #include <asm/uaccess.h>
  80 #include <linux/proc_fs.h>
  81
  82 #include <linux/video_decoder.h>
  83 #include <linux/video_encoder.h>
  84 #include <linux/mutex.h>
  85 #include "zoran.h"
  86 #include "zoran_device.h"
  87 #include "zoran_card.h"
  88
  89         /* we declare some card type definitions here, they mean
  90          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  91 #define ZORAN_V4L2_VID_FLAGS ( \
  92                                 V4L2_CAP_STREAMING |\
  93                                 V4L2_CAP_VIDEO_CAPTURE |\
  94                                 V4L2_CAP_VIDEO_OUTPUT |\
  95                                 V4L2_CAP_VIDEO_OVERLAY \
  96                               )
  97
  98
  99 #if defined(CONFIG_VIDEO_V4L1_COMPAT)
 100 #define ZFMT(pal, fcc, cs) \
 101         .palette = (pal), .fourcc = (fcc), .colorspace = (cs)
 102 #else
 103 #define ZFMT(pal, fcc, cs) \
 104         .fourcc = (fcc), .colorspace = (cs)
 105 #endif
 106
 107 const struct zoran_format zoran_formats[] = {
 108         {
 109                 .name = "15-bit RGB LE",
 110                 ZFMT(VIDEO_PALETTE_RGB555,
 111                      V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB),
 112                 .depth = 15,
 113                 .flags = ZORAN_FORMAT_CAPTURE |
 114                          ZORAN_FORMAT_OVERLAY,
 115                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
 116                            ZR36057_VFESPFR_LittleEndian,
 117         }, {
 118                 .name = "15-bit RGB BE",
 119                 ZFMT(-1,
 120                      V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB),
 121                 .depth = 15,
 122                 .flags = ZORAN_FORMAT_CAPTURE |
 123                          ZORAN_FORMAT_OVERLAY,
 124                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
 125         }, {
 126                 .name = "16-bit RGB LE",
 127                 ZFMT(VIDEO_PALETTE_RGB565,
 128                      V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
 129                 .depth = 16,
 130                 .flags = ZORAN_FORMAT_CAPTURE |
 131                          ZORAN_FORMAT_OVERLAY,
 132                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 133                            ZR36057_VFESPFR_LittleEndian,
 134         }, {
 135                 .name = "16-bit RGB BE",
 136                 ZFMT(-1,
 137                      V4L2_PIX_FMT_RGB565X, V4L2_COLORSPACE_SRGB),
 138                 .depth = 16,
 139                 .flags = ZORAN_FORMAT_CAPTURE |
 140                          ZORAN_FORMAT_OVERLAY,
 141                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 142         }, {
 143                 .name = "24-bit RGB",
 144                 ZFMT(VIDEO_PALETTE_RGB24,
 145                      V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB),
 146                 .depth = 24,
 147                 .flags = ZORAN_FORMAT_CAPTURE |
 148                          ZORAN_FORMAT_OVERLAY,
 149                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 150         }, {
 151                 .name = "32-bit RGB LE",
 152                 ZFMT(VIDEO_PALETTE_RGB32,
 153                      V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB),
 154                 .depth = 32,
 155                 .flags = ZORAN_FORMAT_CAPTURE |
 156                          ZORAN_FORMAT_OVERLAY,
 157                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 158         }, {
 159                 .name = "32-bit RGB BE",
 160                 ZFMT(-1,
 161                      V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB),
 162                 .depth = 32,
 163                 .flags = ZORAN_FORMAT_CAPTURE |
 164                          ZORAN_FORMAT_OVERLAY,
 165                 .vfespfr = ZR36057_VFESPFR_RGB888,
 166         }, {
 167                 .name = "4:2:2, packed, YUYV",
 168                 ZFMT(VIDEO_PALETTE_YUV422,
 169                      V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M),
 170                 .depth = 16,
 171                 .flags = ZORAN_FORMAT_CAPTURE |
 172                          ZORAN_FORMAT_OVERLAY,
 173                 .vfespfr = ZR36057_VFESPFR_YUV422,
 174         }, {
 175                 .name = "4:2:2, packed, UYVY",
 176                 ZFMT(VIDEO_PALETTE_UYVY,
 177                      V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M),
 178                 .depth = 16,
 179                 .flags = ZORAN_FORMAT_CAPTURE |
 180                          ZORAN_FORMAT_OVERLAY,
 181                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 182         }, {
 183                 .name = "Hardware-encoded Motion-JPEG",
 184                 ZFMT(-1,
 185                      V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M),
 186                 .depth = 0,
 187                 .flags = ZORAN_FORMAT_CAPTURE |
 188                          ZORAN_FORMAT_PLAYBACK |
 189                          ZORAN_FORMAT_COMPRESSED,
 190         }
 191 };
 192 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 193
 194 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
 195
 196
 197 static int lock_norm;   /* 0 = default 1 = Don't change TV standard (norm) */
 198 module_param(lock_norm, int, 0644);
 199 MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
 200
 201         /* small helper function for calculating buffersizes for v4l2
 202          * we calculate the nearest higher power-of-two, which
 203          * will be the recommended buffersize */
 204 static __u32
 205 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 206 {
 207         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 208         __u32 num = (1024 * 512) / (div);
 209         __u32 result = 2;
 210
 211         num--;
 212         while (num) {
 213                 num >>= 1;
 214                 result <<= 1;
 215         }
 216
 217         if (result > jpg_bufsize)
 218                 return jpg_bufsize;
 219         if (result < 8192)
 220                 return 8192;
 221         return result;
 222 }
 223
 224 /* forward references */
 225 static void v4l_fbuffer_free(struct file *file);
 226 static void jpg_fbuffer_free(struct file *file);
 227
 228 /*
 229  *   Allocate the V4L grab buffers
 230  *
 231  *   These have to be pysically contiguous.
 232  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 233  *   else we try to allocate them with bigphysarea_alloc_pages
 234  *   if the bigphysarea patch is present in the kernel,
 235  *   else we try to use high memory (if the user has bootet
 236  *   Linux with the necessary memory left over).
 237  */
 238
 239 static unsigned long
 240 get_high_mem (unsigned long size)
 241 {
 242 /*
 243  * Check if there is usable memory at the end of Linux memory
 244  * of at least size. Return the physical address of this memory,
 245  * return 0 on failure.
 246  *
 247  * The idea is from Alexandro Rubini's book "Linux device drivers".
 248  * The driver from him which is downloadable from O'Reilly's
 249  * web site misses the "virt_to_phys(high_memory)" part
 250  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 251  *
 252  * It should be unnecessary to mention that THIS IS DANGEROUS,
 253  * if more than one driver at a time has the idea to use this memory!!!!
 254  */
 255
 256         volatile unsigned char __iomem *mem;
 257         unsigned char c;
 258         unsigned long hi_mem_ph;
 259         unsigned long i;
 260
 261         /* Map the high memory to user space */
 262
 263         hi_mem_ph = virt_to_phys(high_memory);
 264
 265         mem = ioremap(hi_mem_ph, size);
 266         if (!mem) {
 267                 dprintk(1,
 268                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 269                         ZORAN_NAME);
 270                 return 0;
 271         }
 272
 273         for (i = 0; i < size; i++) {
 274                 /* Check if it is memory */
 275                 c = i & 0xff;
 276                 writeb(c, mem + i);
 277                 if (readb(mem + i) != c)
 278                         break;
 279                 c = 255 - c;
 280                 writeb(c, mem + i);
 281                 if (readb(mem + i) != c)
 282                         break;
 283                 writeb(0, mem + i);     /* zero out memory */
 284
 285                 /* give the kernel air to breath */
 286                 if ((i & 0x3ffff) == 0x3ffff)
 287                         schedule();
 288         }
 289
 290         iounmap(mem);
 291
 292         if (i != size) {
 293                 dprintk(1,
 294                         KERN_ERR
 295                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 296                         ZORAN_NAME, size, i);
 297                 return 0;
 298         }
 299
 300         return hi_mem_ph;
 301 }
 302
 303 static int
 304 v4l_fbuffer_alloc (struct file *file)
 305 {
 306         struct zoran_fh *fh = file->private_data;
 307         struct zoran *zr = fh->zr;
 308         int i, off;
 309         unsigned char *mem;
 310         unsigned long pmem = 0;
 311
 312         /* we might have old buffers lying around... */
 313         if (fh->v4l_buffers.ready_to_be_freed) {
 314                 v4l_fbuffer_free(file);
 315         }
 316
 317         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 318                 if (fh->v4l_buffers.buffer[i].fbuffer)
 319                         dprintk(2,
 320                                 KERN_WARNING
 321                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 322                                 ZR_DEVNAME(zr), i);
 323
 324                 //udelay(20);
 325                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 326                         /* Use kmalloc */
 327
 328                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
 329                         if (!mem) {
 330                                 dprintk(1,
 331                                         KERN_ERR
 332                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 333                                         ZR_DEVNAME(zr), i);
 334                                 v4l_fbuffer_free(file);
 335                                 return -ENOBUFS;
 336                         }
 337                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 338                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 339                             virt_to_phys(mem);
 340                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 341                             virt_to_bus(mem);
 342                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 343                              off += PAGE_SIZE)
 344                                 SetPageReserved(MAP_NR(mem + off));
 345                         dprintk(4,
 346                                 KERN_INFO
 347                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 348                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 349                                 virt_to_bus(mem));
 350                 } else {
 351
 352                         /* Use high memory which has been left at boot time */
 353
 354                         /* Ok., Ok. this is an evil hack - we make
 355                          * the assumption that physical addresses are
 356                          * the same as bus addresses (true at least
 357                          * for Intel processors). The whole method of
 358                          * obtaining and using this memory is not very
 359                          * nice - but I hope it saves some poor users
 360                          * from kernel hacking, which might have even
 361                          * more evil results */
 362
 363                         if (i == 0) {
 364                                 int size =
 365                                     fh->v4l_buffers.num_buffers *
 366                                     fh->v4l_buffers.buffer_size;
 367
 368                                 pmem = get_high_mem(size);
 369                                 if (pmem == 0) {
 370                                         dprintk(1,
 371                                                 KERN_ERR
 372                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 373                                                 ZR_DEVNAME(zr), size >> 10);
 374                                         return -ENOBUFS;
 375                                 }
 376                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 377                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 378                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 379                                 dprintk(4,
 380                                         KERN_INFO
 381                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 382                                         ZR_DEVNAME(zr), size >> 10);
 383                         } else {
 384                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 385                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 386                                     pmem + i * fh->v4l_buffers.buffer_size;
 387                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 388                                     pmem + i * fh->v4l_buffers.buffer_size;
 389                         }
 390                 }
 391         }
 392
 393         fh->v4l_buffers.allocated = 1;
 394
 395         return 0;
 396 }
 397
 398 /* free the V4L grab buffers */
 399 static void
 400 v4l_fbuffer_free (struct file *file)
 401 {
 402         struct zoran_fh *fh = file->private_data;
 403         struct zoran *zr = fh->zr;
 404         int i, off;
 405         unsigned char *mem;
 406
 407         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 408
 409         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 410                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 411                         continue;
 412
 413                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 414                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 415                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 416                              off += PAGE_SIZE)
 417                                 ClearPageReserved(MAP_NR(mem + off));
 418                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 419                 }
 420                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 421         }
 422
 423         fh->v4l_buffers.allocated = 0;
 424         fh->v4l_buffers.ready_to_be_freed = 0;
 425 }
 426
 427 /*
 428  *   Allocate the MJPEG grab buffers.
 429  *
 430  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 431  *   kmalloc is used to request a physically contiguous area,
 432  *   else we allocate the memory in framgents with get_zeroed_page.
 433  *
 434  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 435  *   each MJPEG buffer needs to be physically contiguous.
 436  *   (RJ: This statement is from Dave Perks' original driver,
 437  *   I could never check it because I have a zr36067)
 438  *   The driver cares about this because it reduces the buffer
 439  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 440  *
 441  *   RJ: The contents grab buffers needs never be accessed in the driver.
 442  *       Therefore there is no need to allocate them with vmalloc in order
 443  *       to get a contiguous virtual memory space.
 444  *       I don't understand why many other drivers first allocate them with
 445  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 446  *       virtual addresses) and then again have to make a lot of efforts
 447  *       to get the physical address.
 448  *
 449  *   Ben Capper:
 450  *       On big-endian architectures (such as ppc) some extra steps
 451  *       are needed. When reading and writing to the stat_com array
 452  *       and fragment buffers, the device expects to see little-
 453  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 454  *       in this function (and one or two others in zoran_device.c)
 455  *       ensure that these values are always stored in little-endian
 456  *       form, regardless of architecture. The zr36057 does Very Bad
 457  *       Things on big endian architectures if the stat_com array
 458  *       and fragment buffers are not little-endian.
 459  */
 460
 461 static int
 462 jpg_fbuffer_alloc (struct file *file)
 463 {
 464         struct zoran_fh *fh = file->private_data;
 465         struct zoran *zr = fh->zr;
 466         int i, j, off;
 467         unsigned long mem;
 468
 469         /* we might have old buffers lying around */
 470         if (fh->jpg_buffers.ready_to_be_freed) {
 471                 jpg_fbuffer_free(file);
 472         }
 473
 474         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 475                 if (fh->jpg_buffers.buffer[i].frag_tab)
 476                         dprintk(2,
 477                                 KERN_WARNING
 478                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 479                                 ZR_DEVNAME(zr), i);
 480
 481                 /* Allocate fragment table for this buffer */
 482
 483                 mem = get_zeroed_page(GFP_KERNEL);
 484                 if (mem == 0) {
 485                         dprintk(1,
 486                                 KERN_ERR
 487                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 488                                 ZR_DEVNAME(zr), i);
 489                         jpg_fbuffer_free(file);
 490                         return -ENOBUFS;
 491                 }
 492                 fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem;
 493                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 494                     virt_to_bus((void *) mem);
 495
 496                 //if (alloc_contig) {
 497                 if (fh->jpg_buffers.need_contiguous) {
 498                         mem =
 499                             (unsigned long) kmalloc(fh->jpg_buffers.
 500                                                     buffer_size,
 501                                                     GFP_KERNEL);
 502                         if (mem == 0) {
 503                                 dprintk(1,
 504                                         KERN_ERR
 505                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 506                                         ZR_DEVNAME(zr), i);
 507                                 jpg_fbuffer_free(file);
 508                                 return -ENOBUFS;
 509                         }
 510                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 511                             cpu_to_le32(virt_to_bus((void *) mem));
 512                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 513                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 514                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 515                              off += PAGE_SIZE)
 516                                 SetPageReserved(MAP_NR(mem + off));
 517                 } else {
 518                         /* jpg_bufsize is allreay page aligned */
 519                         for (j = 0;
 520                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 521                              j++) {
 522                                 mem = get_zeroed_page(GFP_KERNEL);
 523                                 if (mem == 0) {
 524                                         dprintk(1,
 525                                                 KERN_ERR
 526                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 527                                                 ZR_DEVNAME(zr), i);
 528                                         jpg_fbuffer_free(file);
 529                                         return -ENOBUFS;
 530                                 }
 531
 532                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 533                                     cpu_to_le32(virt_to_bus((void *) mem));
 534                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 535                                                                    1] =
 536                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 537                                 SetPageReserved(MAP_NR(mem));
 538                         }
 539
 540                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 541                 }
 542         }
 543
 544         dprintk(4,
 545                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 546                 ZR_DEVNAME(zr),
 547                 (fh->jpg_buffers.num_buffers *
 548                  fh->jpg_buffers.buffer_size) >> 10);
 549
 550         fh->jpg_buffers.allocated = 1;
 551
 552         return 0;
 553 }
 554
 555 /* free the MJPEG grab buffers */
 556 static void
 557 jpg_fbuffer_free (struct file *file)
 558 {
 559         struct zoran_fh *fh = file->private_data;
 560         struct zoran *zr = fh->zr;
 561         int i, j, off;
 562         unsigned char *mem;
 563
 564         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 565
 566         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 567                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 568                         continue;
 569
 570                 //if (alloc_contig) {
 571                 if (fh->jpg_buffers.need_contiguous) {
 572                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 573                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 574                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 575                                 for (off = 0;
 576                                      off < fh->jpg_buffers.buffer_size;
 577                                      off += PAGE_SIZE)
 578                                         ClearPageReserved(MAP_NR
 579                                                           (mem + off));
 580                                 kfree(mem);
 581                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 582                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 583                         }
 584                 } else {
 585                         for (j = 0;
 586                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 587                              j++) {
 588                                 if (!fh->jpg_buffers.buffer[i].
 589                                     frag_tab[2 * j])
 590                                         break;
 591                                 ClearPageReserved(MAP_NR
 592                                                   (bus_to_virt
 593                                                    (le32_to_cpu
 594                                                     (fh->jpg_buffers.
 595                                                      buffer[i].frag_tab[2 *
 596                                                                        j]))));
 597                                 free_page((unsigned long)
 598                                           bus_to_virt
 599                                                   (le32_to_cpu
 600                                                    (fh->jpg_buffers.
 601                                                       buffer[i].
 602                                                       frag_tab[2 * j])));
 603                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 604                                     0;
 605                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 606                                                                    1] = 0;
 607                         }
 608                 }
 609
 610                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 611                           frag_tab);
 612                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 613         }
 614
 615         fh->jpg_buffers.allocated = 0;
 616         fh->jpg_buffers.ready_to_be_freed = 0;
 617 }
 618
 619 /*
 620  *   V4L Buffer grabbing
 621  */
 622
 623 static int
 624 zoran_v4l_set_format (struct file               *file,
 625                       int                        width,
 626                       int                        height,
 627                       const struct zoran_format *format)
 628 {
 629         struct zoran_fh *fh = file->private_data;
 630         struct zoran *zr = fh->zr;
 631         int bpp;
 632
 633         /* Check size and format of the grab wanted */
 634
 635         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 636             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 637                 dprintk(1,
 638                         KERN_ERR
 639                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 640                         ZR_DEVNAME(zr), width, height);
 641                 return -EINVAL;
 642         }
 643
 644         bpp = (format->depth + 7) / 8;
 645
 646         /* Check against available buffer size */
 647         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 648                 dprintk(1,
 649                         KERN_ERR
 650                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 651                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 652                 return -EINVAL;
 653         }
 654
 655         /* The video front end needs 4-byte alinged line sizes */
 656
 657         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 658                 dprintk(1,
 659                         KERN_ERR
 660                         "%s: v4l_set_format() - wrong frame alingment\n",
 661                         ZR_DEVNAME(zr));
 662                 return -EINVAL;
 663         }
 664
 665         fh->v4l_settings.width = width;
 666         fh->v4l_settings.height = height;
 667         fh->v4l_settings.format = format;
 668         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 669
 670         return 0;
 671 }
 672
 673 static int
 674 zoran_v4l_queue_frame (struct file *file,
 675                        int          num)
 676 {
 677         struct zoran_fh *fh = file->private_data;
 678         struct zoran *zr = fh->zr;
 679         unsigned long flags;
 680         int res = 0;
 681
 682         if (!fh->v4l_buffers.allocated) {
 683                 dprintk(1,
 684                         KERN_ERR
 685                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 686                         ZR_DEVNAME(zr));
 687                 res = -ENOMEM;
 688         }
 689
 690         /* No grabbing outside the buffer range! */
 691         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 692                 dprintk(1,
 693                         KERN_ERR
 694                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 695                         ZR_DEVNAME(zr), num);
 696                 res = -EINVAL;
 697         }
 698
 699         spin_lock_irqsave(&zr->spinlock, flags);
 700
 701         if (fh->v4l_buffers.active == ZORAN_FREE) {
 702                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 703                         zr->v4l_buffers = fh->v4l_buffers;
 704                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 705                 } else {
 706                         dprintk(1,
 707                                 KERN_ERR
 708                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 709                                 ZR_DEVNAME(zr));
 710                         res = -EBUSY;
 711                 }
 712         }
 713
 714         /* make sure a grab isn't going on currently with this buffer */
 715         if (!res) {
 716                 switch (zr->v4l_buffers.buffer[num].state) {
 717                 default:
 718                 case BUZ_STATE_PEND:
 719                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 720                                 fh->v4l_buffers.active = ZORAN_FREE;
 721                                 zr->v4l_buffers.allocated = 0;
 722                         }
 723                         res = -EBUSY;   /* what are you doing? */
 724                         break;
 725                 case BUZ_STATE_DONE:
 726                         dprintk(2,
 727                                 KERN_WARNING
 728                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 729                                 ZR_DEVNAME(zr), num);
 730                 case BUZ_STATE_USER:
 731                         /* since there is at least one unused buffer there's room for at least
 732                          * one more pend[] entry */
 733                         zr->v4l_pend[zr->v4l_pend_head++ &
 734                                         V4L_MASK_FRAME] = num;
 735                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 736                         zr->v4l_buffers.buffer[num].bs.length =
 737                             fh->v4l_settings.bytesperline *
 738                             zr->v4l_settings.height;
 739                         fh->v4l_buffers.buffer[num] =
 740                             zr->v4l_buffers.buffer[num];
 741                         break;
 742                 }
 743         }
 744
 745         spin_unlock_irqrestore(&zr->spinlock, flags);
 746
 747         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 748                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 749
 750         return res;
 751 }
 752
 753 static int
 754 v4l_grab (struct file       *file,
 755           struct video_mmap *mp)
 756 {
 757         struct zoran_fh *fh = file->private_data;
 758         struct zoran *zr = fh->zr;
 759         int res = 0, i;
 760
 761         for (i = 0; i < NUM_FORMATS; i++) {
 762                 if (zoran_formats[i].palette == mp->format &&
 763                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 764                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 765                         break;
 766         }
 767         if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
 768                 dprintk(1,
 769                         KERN_ERR
 770                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 771                         ZR_DEVNAME(zr));
 772                 return -EINVAL;
 773         }
 774
 775         /*
 776          * To minimize the time spent in the IRQ routine, we avoid setting up
 777          * the video front end there.
 778          * If this grab has different parameters from a running streaming capture
 779          * we stop the streaming capture and start it over again.
 780          */
 781         if (zr->v4l_memgrab_active &&
 782             (zr->v4l_settings.width != mp->width ||
 783              zr->v4l_settings.height != mp->height ||
 784              zr->v4l_settings.format->palette != mp->format)) {
 785                 res = wait_grab_pending(zr);
 786                 if (res)
 787                         return res;
 788         }
 789         if ((res = zoran_v4l_set_format(file,
 790                                         mp->width,
 791                                         mp->height,
 792                                         &zoran_formats[i])))
 793                 return res;
 794         zr->v4l_settings = fh->v4l_settings;
 795
 796         /* queue the frame in the pending queue */
 797         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 798                 fh->v4l_buffers.active = ZORAN_FREE;
 799                 return res;
 800         }
 801
 802         /* put the 36057 into frame grabbing mode */
 803         if (!res && !zr->v4l_memgrab_active)
 804                 zr36057_set_memgrab(zr, 1);
 805
 806         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 807
 808         return res;
 809 }
 810
 811 /*
 812  * Sync on a V4L buffer
 813  */
 814
 815 static int
 816 v4l_sync (struct file *file,
 817           int          frame)
 818 {
 819         struct zoran_fh *fh = file->private_data;
 820         struct zoran *zr = fh->zr;
 821         unsigned long flags;
 822
 823         if (fh->v4l_buffers.active == ZORAN_FREE) {
 824                 dprintk(1,
 825                         KERN_ERR
 826                         "%s: v4l_sync() - no grab active for this session\n",
 827                         ZR_DEVNAME(zr));
 828                 return -EINVAL;
 829         }
 830
 831         /* check passed-in frame number */
 832         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 833                 dprintk(1,
 834                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 835                         ZR_DEVNAME(zr), frame);
 836                 return -EINVAL;
 837         }
 838
 839         /* Check if is buffer was queued at all */
 840         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 841                 dprintk(1,
 842                         KERN_ERR
 843                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 844                         ZR_DEVNAME(zr));
 845                 return -EPROTO;
 846         }
 847
 848         /* wait on this buffer to get ready */
 849         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 850                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 851                                 10*HZ))
 852                 return -ETIME;
 853         if (signal_pending(current))
 854                 return -ERESTARTSYS;
 855
 856         /* buffer should now be in BUZ_STATE_DONE */
 857         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 858                 dprintk(2,
 859                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 860                         ZR_DEVNAME(zr));
 861
 862         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 863         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 864
 865         spin_lock_irqsave(&zr->spinlock, flags);
 866
 867         /* Check if streaming capture has finished */
 868         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 869                 zr36057_set_memgrab(zr, 0);
 870                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 871                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 872                             ZORAN_FREE;
 873                         zr->v4l_buffers.allocated = 0;
 874                 }
 875         }
 876
 877         spin_unlock_irqrestore(&zr->spinlock, flags);
 878
 879         return 0;
 880 }
 881
 882 /*
 883  *   Queue a MJPEG buffer for capture/playback
 884  */
 885
 886 static int
 887 zoran_jpg_queue_frame (struct file          *file,
 888                        int                   num,
 889                        enum zoran_codec_mode mode)
 890 {
 891         struct zoran_fh *fh = file->private_data;
 892         struct zoran *zr = fh->zr;
 893         unsigned long flags;
 894         int res = 0;
 895
 896         /* Check if buffers are allocated */
 897         if (!fh->jpg_buffers.allocated) {
 898                 dprintk(1,
 899                         KERN_ERR
 900                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 901                         ZR_DEVNAME(zr));
 902                 return -ENOMEM;
 903         }
 904
 905         /* No grabbing outside the buffer range! */
 906         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 907                 dprintk(1,
 908                         KERN_ERR
 909                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 910                         ZR_DEVNAME(zr), num);
 911                 return -EINVAL;
 912         }
 913
 914         /* what is the codec mode right now? */
 915         if (zr->codec_mode == BUZ_MODE_IDLE) {
 916                 zr->jpg_settings = fh->jpg_settings;
 917         } else if (zr->codec_mode != mode) {
 918                 /* wrong codec mode active - invalid */
 919                 dprintk(1,
 920                         KERN_ERR
 921                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 922                         ZR_DEVNAME(zr));
 923                 return -EINVAL;
 924         }
 925
 926         if (fh->jpg_buffers.active == ZORAN_FREE) {
 927                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 928                         zr->jpg_buffers = fh->jpg_buffers;
 929                         fh->jpg_buffers.active = ZORAN_ACTIVE;
 930                 } else {
 931                         dprintk(1,
 932                                 KERN_ERR
 933                                 "%s: jpg_queue_frame() - another session is already capturing\n",
 934                                 ZR_DEVNAME(zr));
 935                         res = -EBUSY;
 936                 }
 937         }
 938
 939         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 940                 /* Ok load up the jpeg codec */
 941                 zr36057_enable_jpg(zr, mode);
 942         }
 943
 944         spin_lock_irqsave(&zr->spinlock, flags);
 945
 946         if (!res) {
 947                 switch (zr->jpg_buffers.buffer[num].state) {
 948                 case BUZ_STATE_DONE:
 949                         dprintk(2,
 950                                 KERN_WARNING
 951                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
 952                                 ZR_DEVNAME(zr));
 953                 case BUZ_STATE_USER:
 954                         /* since there is at least one unused buffer there's room for at
 955                          *least one more pend[] entry */
 956                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
 957                             num;
 958                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 959                         fh->jpg_buffers.buffer[num] =
 960                             zr->jpg_buffers.buffer[num];
 961                         zoran_feed_stat_com(zr);
 962                         break;
 963                 default:
 964                 case BUZ_STATE_DMA:
 965                 case BUZ_STATE_PEND:
 966                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 967                                 fh->jpg_buffers.active = ZORAN_FREE;
 968                                 zr->jpg_buffers.allocated = 0;
 969                         }
 970                         res = -EBUSY;   /* what are you doing? */
 971                         break;
 972                 }
 973         }
 974
 975         spin_unlock_irqrestore(&zr->spinlock, flags);
 976
 977         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
 978                 zr->jpg_buffers.active = fh->jpg_buffers.active;
 979         }
 980
 981         return res;
 982 }
 983
 984 static int
 985 jpg_qbuf (struct file          *file,
 986           int                   frame,
 987           enum zoran_codec_mode mode)
 988 {
 989         struct zoran_fh *fh = file->private_data;
 990         struct zoran *zr = fh->zr;
 991         int res = 0;
 992
 993         /* Does the user want to stop streaming? */
 994         if (frame < 0) {
 995                 if (zr->codec_mode == mode) {
 996                         if (fh->jpg_buffers.active == ZORAN_FREE) {
 997                                 dprintk(1,
 998                                         KERN_ERR
 999                                         "%s: jpg_qbuf(-1) - session not active\n",
1000                                         ZR_DEVNAME(zr));
1001                                 return -EINVAL;
1002                         }
1003                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1004                             ZORAN_FREE;
1005                         zr->jpg_buffers.allocated = 0;
1006                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1007                         return 0;
1008                 } else {
1009                         dprintk(1,
1010                                 KERN_ERR
1011                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1012                                 ZR_DEVNAME(zr));
1013                         return -EINVAL;
1014                 }
1015         }
1016
1017         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1018                 return res;
1019
1020         /* Start the jpeg codec when the first frame is queued  */
1021         if (!res && zr->jpg_que_head == 1)
1022                 jpeg_start(zr);
1023
1024         return res;
1025 }
1026
1027 /*
1028  *   Sync on a MJPEG buffer
1029  */
1030
1031 static int
1032 jpg_sync (struct file       *file,
1033           struct zoran_sync *bs)
1034 {
1035         struct zoran_fh *fh = file->private_data;
1036         struct zoran *zr = fh->zr;
1037         unsigned long flags;
1038         int frame;
1039
1040         if (fh->jpg_buffers.active == ZORAN_FREE) {
1041                 dprintk(1,
1042                         KERN_ERR
1043                         "%s: jpg_sync() - capture is not currently active\n",
1044                         ZR_DEVNAME(zr));
1045                 return -EINVAL;
1046         }
1047         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1048             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1049                 dprintk(1,
1050                         KERN_ERR
1051                         "%s: jpg_sync() - codec not in streaming mode\n",
1052                         ZR_DEVNAME(zr));
1053                 return -EINVAL;
1054         }
1055         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1056                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1057                          zr->jpg_dma_tail == zr->jpg_dma_head),
1058                         10*HZ)) {
1059                 int isr;
1060
1061                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1062                 udelay(1);
1063                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1064                                            sizeof(isr), &isr);
1065                 dprintk(1,
1066                         KERN_ERR
1067                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1068                         ZR_DEVNAME(zr), isr);
1069
1070                 return -ETIME;
1071
1072         }
1073         if (signal_pending(current))
1074                 return -ERESTARTSYS;
1075
1076         spin_lock_irqsave(&zr->spinlock, flags);
1077
1078         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1079                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1080         else
1081                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1082
1083         /* buffer should now be in BUZ_STATE_DONE */
1084         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1085                 dprintk(2,
1086                         KERN_ERR "%s: jpg_sync() - internal state error\n",
1087                         ZR_DEVNAME(zr));
1088
1089         *bs = zr->jpg_buffers.buffer[frame].bs;
1090         bs->frame = frame;
1091         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1092         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1093
1094         spin_unlock_irqrestore(&zr->spinlock, flags);
1095
1096         return 0;
1097 }
1098
1099 static void
1100 zoran_open_init_session (struct file *file)
1101 {
1102         int i;
1103         struct zoran_fh *fh = file->private_data;
1104         struct zoran *zr = fh->zr;
1105
1106         /* Per default, map the V4L Buffers */
1107         fh->map_mode = ZORAN_MAP_MODE_RAW;
1108
1109         /* take over the card's current settings */
1110         fh->overlay_settings = zr->overlay_settings;
1111         fh->overlay_settings.is_set = 0;
1112         fh->overlay_settings.format = zr->overlay_settings.format;
1113         fh->overlay_active = ZORAN_FREE;
1114
1115         /* v4l settings */
1116         fh->v4l_settings = zr->v4l_settings;
1117
1118         /* v4l_buffers */
1119         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1120         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1121                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1122                 fh->v4l_buffers.buffer[i].bs.frame = i;
1123         }
1124         fh->v4l_buffers.allocated = 0;
1125         fh->v4l_buffers.ready_to_be_freed = 0;
1126         fh->v4l_buffers.active = ZORAN_FREE;
1127         fh->v4l_buffers.buffer_size = v4l_bufsize;
1128         fh->v4l_buffers.num_buffers = v4l_nbufs;
1129
1130         /* jpg settings */
1131         fh->jpg_settings = zr->jpg_settings;
1132
1133         /* jpg_buffers */
1134         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1135         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1136                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1137                 fh->jpg_buffers.buffer[i].bs.frame = i;
1138         }
1139         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1140         fh->jpg_buffers.allocated = 0;
1141         fh->jpg_buffers.ready_to_be_freed = 0;
1142         fh->jpg_buffers.active = ZORAN_FREE;
1143         fh->jpg_buffers.buffer_size = jpg_bufsize;
1144         fh->jpg_buffers.num_buffers = jpg_nbufs;
1145 }
1146
1147 static void
1148 zoran_close_end_session (struct file *file)
1149 {
1150         struct zoran_fh *fh = file->private_data;
1151         struct zoran *zr = fh->zr;
1152
1153         /* overlay */
1154         if (fh->overlay_active != ZORAN_FREE) {
1155                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1156                 zr->v4l_overlay_active = 0;
1157                 if (!zr->v4l_memgrab_active)
1158                         zr36057_overlay(zr, 0);
1159                 zr->overlay_mask = NULL;
1160         }
1161
1162         /* v4l capture */
1163         if (fh->v4l_buffers.active != ZORAN_FREE) {
1164                 unsigned long flags;
1165
1166                 spin_lock_irqsave(&zr->spinlock, flags);
1167                 zr36057_set_memgrab(zr, 0);
1168                 zr->v4l_buffers.allocated = 0;
1169                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1170                     ZORAN_FREE;
1171                 spin_unlock_irqrestore(&zr->spinlock, flags);
1172         }
1173
1174         /* v4l buffers */
1175         if (fh->v4l_buffers.allocated ||
1176             fh->v4l_buffers.ready_to_be_freed) {
1177                 v4l_fbuffer_free(file);
1178         }
1179
1180         /* jpg capture */
1181         if (fh->jpg_buffers.active != ZORAN_FREE) {
1182                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1183                 zr->jpg_buffers.allocated = 0;
1184                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1185                     ZORAN_FREE;
1186         }
1187
1188         /* jpg buffers */
1189         if (fh->jpg_buffers.allocated ||
1190             fh->jpg_buffers.ready_to_be_freed) {
1191                 jpg_fbuffer_free(file);
1192         }
1193 }
1194
1195 /*
1196  *   Open a zoran card. Right now the flags stuff is just playing
1197  */
1198
1199 static int
1200 zoran_open (struct inode *inode,
1201             struct file  *file)
1202 {
1203         unsigned int minor = iminor(inode);
1204         struct zoran *zr = NULL;
1205         struct zoran_fh *fh;
1206         int i, res, first_open = 0, have_module_locks = 0;
1207
1208         lock_kernel();
1209         /* find the device */
1210         for (i = 0; i < zoran_num; i++) {
1211                 if (zoran[i]->video_dev->minor == minor) {
1212                         zr = zoran[i];
1213                         break;
1214                 }
1215         }
1216
1217         if (!zr) {
1218                 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1219                 res = -ENODEV;
1220                 goto open_unlock_and_return;
1221         }
1222
1223         /* see fs/device.c - the kernel already locks during open(),
1224          * so locking ourselves only causes deadlocks */
1225         /*mutex_lock(&zr->resource_lock);*/
1226
1227         if (!zr->decoder) {
1228                 dprintk(1,
1229                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1230                         ZR_DEVNAME(zr));
1231                 res = -EIO;
1232                 goto open_unlock_and_return;
1233         }
1234
1235         /* try to grab a module lock */
1236         if (!try_module_get(THIS_MODULE)) {
1237                 dprintk(1,
1238                         KERN_ERR
1239                         "%s: failed to acquire my own lock! PANIC!\n",
1240                         ZR_DEVNAME(zr));
1241                 res = -ENODEV;
1242                 goto open_unlock_and_return;
1243         }
1244         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1245                 dprintk(1,
1246                         KERN_ERR
1247                         "%s: failed to grab ownership of i2c decoder\n",
1248                         ZR_DEVNAME(zr));
1249                 res = -EIO;
1250                 module_put(THIS_MODULE);
1251                 goto open_unlock_and_return;
1252         }
1253         if (zr->encoder &&
1254             !try_module_get(zr->encoder->driver->driver.owner)) {
1255                 dprintk(1,
1256                         KERN_ERR
1257                         "%s: failed to grab ownership of i2c encoder\n",
1258                         ZR_DEVNAME(zr));
1259                 res = -EIO;
1260                 module_put(zr->decoder->driver->driver.owner);
1261                 module_put(THIS_MODULE);
1262                 goto open_unlock_and_return;
1263         }
1264
1265         have_module_locks = 1;
1266
1267         if (zr->user >= 2048) {
1268                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1269                         ZR_DEVNAME(zr), zr->user);
1270                 res = -EBUSY;
1271                 goto open_unlock_and_return;
1272         }
1273
1274         dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1275                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1276
1277         /* now, create the open()-specific file_ops struct */
1278         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1279         if (!fh) {
1280                 dprintk(1,
1281                         KERN_ERR
1282                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1283                         ZR_DEVNAME(zr));
1284                 res = -ENOMEM;
1285                 goto open_unlock_and_return;
1286         }
1287         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1288          * on norm-change! */
1289         fh->overlay_mask =
1290             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1291         if (!fh->overlay_mask) {
1292                 dprintk(1,
1293                         KERN_ERR
1294                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1295                         ZR_DEVNAME(zr));
1296                 kfree(fh);
1297                 res = -ENOMEM;
1298                 goto open_unlock_and_return;
1299         }
1300
1301         if (zr->user++ == 0)
1302                 first_open = 1;
1303
1304         /*mutex_unlock(&zr->resource_lock);*/
1305
1306         /* default setup - TODO: look at flags */
1307         if (first_open) {       /* First device open */
1308                 zr36057_restart(zr);
1309                 zoran_open_init_params(zr);
1310                 zoran_init_hardware(zr);
1311
1312                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1313         }
1314
1315         /* set file_ops stuff */
1316         file->private_data = fh;
1317         fh->zr = zr;
1318         zoran_open_init_session(file);
1319         unlock_kernel();
1320
1321         return 0;
1322
1323 open_unlock_and_return:
1324         /* if we grabbed locks, release them accordingly */
1325         if (have_module_locks) {
1326                 module_put(zr->decoder->driver->driver.owner);
1327                 if (zr->encoder) {
1328                         module_put(zr->encoder->driver->driver.owner);
1329                 }
1330                 module_put(THIS_MODULE);
1331         }
1332
1333         /* if there's no device found, we didn't obtain the lock either */
1334         if (zr) {
1335                 /*mutex_unlock(&zr->resource_lock);*/
1336         }
1337         unlock_kernel();
1338
1339         return res;
1340 }
1341
1342 static int
1343 zoran_close (struct inode *inode,
1344              struct file  *file)
1345 {
1346         struct zoran_fh *fh = file->private_data;
1347         struct zoran *zr = fh->zr;
1348
1349         dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1350                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1351
1352         /* kernel locks (fs/device.c), so don't do that ourselves
1353          * (prevents deadlocks) */
1354         /*mutex_lock(&zr->resource_lock);*/
1355
1356         zoran_close_end_session(file);
1357
1358         if (zr->user-- == 1) {  /* Last process */
1359                 /* Clean up JPEG process */
1360                 wake_up_interruptible(&zr->jpg_capq);
1361                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1362                 zr->jpg_buffers.allocated = 0;
1363                 zr->jpg_buffers.active = ZORAN_FREE;
1364
1365                 /* disable interrupts */
1366                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1367
1368                 if (zr36067_debug > 1)
1369                         print_interrupts(zr);
1370
1371                 /* Overlay off */
1372                 zr->v4l_overlay_active = 0;
1373                 zr36057_overlay(zr, 0);
1374                 zr->overlay_mask = NULL;
1375
1376                 /* capture off */
1377                 wake_up_interruptible(&zr->v4l_capq);
1378                 zr36057_set_memgrab(zr, 0);
1379                 zr->v4l_buffers.allocated = 0;
1380                 zr->v4l_buffers.active = ZORAN_FREE;
1381                 zoran_set_pci_master(zr, 0);
1382
1383                 if (!pass_through) {    /* Switch to color bar */
1384                         int zero = 0, two = 2;
1385                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1386                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1387                 }
1388         }
1389
1390         file->private_data = NULL;
1391         kfree(fh->overlay_mask);
1392         kfree(fh);
1393
1394         /* release locks on the i2c modules */
1395         module_put(zr->decoder->driver->driver.owner);
1396         if (zr->encoder) {
1397                  module_put(zr->encoder->driver->driver.owner);
1398         }
1399         module_put(THIS_MODULE);
1400
1401         /*mutex_unlock(&zr->resource_lock);*/
1402
1403         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1404
1405         return 0;
1406 }
1407
1408
1409 static ssize_t
1410 zoran_read (struct file *file,
1411             char        __user *data,
1412             size_t       count,
1413             loff_t      *ppos)
1414 {
1415         /* we simply don't support read() (yet)... */
1416
1417         return -EINVAL;
1418 }
1419
1420 static ssize_t
1421 zoran_write (struct file *file,
1422              const char  __user *data,
1423              size_t       count,
1424              loff_t      *ppos)
1425 {
1426         /* ...and the same goes for write() */
1427
1428         return -EINVAL;
1429 }
1430
1431 static int
1432 setup_fbuffer (struct file               *file,
1433                void                      *base,
1434                const struct zoran_format *fmt,
1435                int                        width,
1436                int                        height,
1437                int                        bytesperline)
1438 {
1439         struct zoran_fh *fh = file->private_data;
1440         struct zoran *zr = fh->zr;
1441
1442         /* (Ronald) v4l/v4l2 guidelines */
1443         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1444                 return -EPERM;
1445
1446         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1447            ALi Magik (that needs very low latency while the card needs a
1448            higher value always) */
1449
1450         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1451                 return -ENXIO;
1452
1453         /* we need a bytesperline value, even if not given */
1454         if (!bytesperline)
1455                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1456
1457 #if 0
1458         if (zr->overlay_active) {
1459                 /* dzjee... stupid users... don't even bother to turn off
1460                  * overlay before changing the memory location...
1461                  * normally, we would return errors here. However, one of
1462                  * the tools that does this is... xawtv! and since xawtv
1463                  * is used by +/- 99% of the users, we'd rather be user-
1464                  * friendly and silently do as if nothing went wrong */
1465                 dprintk(3,
1466                         KERN_ERR
1467                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1468                         ZR_DEVNAME(zr));
1469                 zr36057_overlay(zr, 0);
1470         }
1471 #endif
1472
1473         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1474                 dprintk(1,
1475                         KERN_ERR
1476                         "%s: setup_fbuffer() - no valid overlay format given\n",
1477                         ZR_DEVNAME(zr));
1478                 return -EINVAL;
1479         }
1480         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1481                 dprintk(1,
1482                         KERN_ERR
1483                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1484                         ZR_DEVNAME(zr), width, height, bytesperline);
1485                 return -EINVAL;
1486         }
1487         if (bytesperline & 3) {
1488                 dprintk(1,
1489                         KERN_ERR
1490                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1491                         ZR_DEVNAME(zr), bytesperline);
1492                 return -EINVAL;
1493         }
1494
1495         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1496         zr->buffer.height = height;
1497         zr->buffer.width = width;
1498         zr->buffer.depth = fmt->depth;
1499         zr->overlay_settings.format = fmt;
1500         zr->buffer.bytesperline = bytesperline;
1501
1502         /* The user should set new window parameters */
1503         zr->overlay_settings.is_set = 0;
1504
1505         return 0;
1506 }
1507
1508
1509 static int
1510 setup_window (struct file       *file,
1511               int                x,
1512               int                y,
1513               int                width,
1514               int                height,
1515               struct video_clip __user *clips,
1516               int                clipcount,
1517               void              __user *bitmap)
1518 {
1519         struct zoran_fh *fh = file->private_data;
1520         struct zoran *zr = fh->zr;
1521         struct video_clip *vcp = NULL;
1522         int on, end;
1523
1524
1525         if (!zr->buffer.base) {
1526                 dprintk(1,
1527                         KERN_ERR
1528                         "%s: setup_window() - frame buffer has to be set first\n",
1529                         ZR_DEVNAME(zr));
1530                 return -EINVAL;
1531         }
1532
1533         if (!fh->overlay_settings.format) {
1534                 dprintk(1,
1535                         KERN_ERR
1536                         "%s: setup_window() - no overlay format set\n",
1537                         ZR_DEVNAME(zr));
1538                 return -EINVAL;
1539         }
1540
1541         /*
1542          * The video front end needs 4-byte alinged line sizes, we correct that
1543          * silently here if necessary
1544          */
1545         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1546                 end = (x + width) & ~1; /* round down */
1547                 x = (x + 1) & ~1;       /* round up */
1548                 width = end - x;
1549         }
1550
1551         if (zr->buffer.depth == 24) {
1552                 end = (x + width) & ~3; /* round down */
1553                 x = (x + 3) & ~3;       /* round up */
1554                 width = end - x;
1555         }
1556
1557         if (width > BUZ_MAX_WIDTH)
1558                 width = BUZ_MAX_WIDTH;
1559         if (height > BUZ_MAX_HEIGHT)
1560                 height = BUZ_MAX_HEIGHT;
1561
1562         /* Check for vaild parameters */
1563         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1564             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1565                 dprintk(1,
1566                         KERN_ERR
1567                         "%s: setup_window() - width = %d or height = %d invalid\n",
1568                         ZR_DEVNAME(zr), width, height);
1569                 return -EINVAL;
1570         }
1571
1572         fh->overlay_settings.x = x;
1573         fh->overlay_settings.y = y;
1574         fh->overlay_settings.width = width;
1575         fh->overlay_settings.height = height;
1576         fh->overlay_settings.clipcount = clipcount;
1577
1578         /*
1579          * If an overlay is running, we have to switch it off
1580          * and switch it on again in order to get the new settings in effect.
1581          *
1582          * We also want to avoid that the overlay mask is written
1583          * when an overlay is running.
1584          */
1585
1586         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1587             zr->overlay_active != ZORAN_FREE &&
1588             fh->overlay_active != ZORAN_FREE;
1589         if (on)
1590                 zr36057_overlay(zr, 0);
1591
1592         /*
1593          *   Write the overlay mask if clips are wanted.
1594          *   We prefer a bitmap.
1595          */
1596         if (bitmap) {
1597                 /* fake value - it just means we want clips */
1598                 fh->overlay_settings.clipcount = 1;
1599
1600                 if (copy_from_user(fh->overlay_mask, bitmap,
1601                                    (width * height + 7) / 8)) {
1602                         return -EFAULT;
1603                 }
1604         } else if (clipcount > 0) {
1605                 /* write our own bitmap from the clips */
1606                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1607                 if (vcp == NULL) {
1608                         dprintk(1,
1609                                 KERN_ERR
1610                                 "%s: setup_window() - Alloc of clip mask failed\n",
1611                                 ZR_DEVNAME(zr));
1612                         return -ENOMEM;
1613                 }
1614                 if (copy_from_user
1615                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1616                         vfree(vcp);
1617                         return -EFAULT;
1618                 }
1619                 write_overlay_mask(file, vcp, clipcount);
1620                 vfree(vcp);
1621         }
1622
1623         fh->overlay_settings.is_set = 1;
1624         if (fh->overlay_active != ZORAN_FREE &&
1625             zr->overlay_active != ZORAN_FREE)
1626                 zr->overlay_settings = fh->overlay_settings;
1627
1628         if (on)
1629                 zr36057_overlay(zr, 1);
1630
1631         /* Make sure the changes come into effect */
1632         return wait_grab_pending(zr);
1633 }
1634
1635 static int
1636 setup_overlay (struct file *file,
1637                int          on)
1638 {
1639         struct zoran_fh *fh = file->private_data;
1640         struct zoran *zr = fh->zr;
1641
1642         /* If there is nothing to do, return immediatly */
1643         if ((on && fh->overlay_active != ZORAN_FREE) ||
1644             (!on && fh->overlay_active == ZORAN_FREE))
1645                 return 0;
1646
1647         /* check whether we're touching someone else's overlay */
1648         if (on && zr->overlay_active != ZORAN_FREE &&
1649             fh->overlay_active == ZORAN_FREE) {
1650                 dprintk(1,
1651                         KERN_ERR
1652                         "%s: setup_overlay() - overlay is already active for another session\n",
1653                         ZR_DEVNAME(zr));
1654                 return -EBUSY;
1655         }
1656         if (!on && zr->overlay_active != ZORAN_FREE &&
1657             fh->overlay_active == ZORAN_FREE) {
1658                 dprintk(1,
1659                         KERN_ERR
1660                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1661                         ZR_DEVNAME(zr));
1662                 return -EPERM;
1663         }
1664
1665         if (on == 0) {
1666                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1667                 zr->v4l_overlay_active = 0;
1668                 /* When a grab is running, the video simply
1669                  * won't be switched on any more */
1670                 if (!zr->v4l_memgrab_active)
1671                         zr36057_overlay(zr, 0);
1672                 zr->overlay_mask = NULL;
1673         } else {
1674                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1675                         dprintk(1,
1676                                 KERN_ERR
1677                                 "%s: setup_overlay() - buffer or window not set\n",
1678                                 ZR_DEVNAME(zr));
1679                         return -EINVAL;
1680                 }
1681                 if (!fh->overlay_settings.format) {
1682                         dprintk(1,
1683                                 KERN_ERR
1684                                 "%s: setup_overlay() - no overlay format set\n",
1685                                 ZR_DEVNAME(zr));
1686                         return -EINVAL;
1687                 }
1688                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1689                 zr->v4l_overlay_active = 1;
1690                 zr->overlay_mask = fh->overlay_mask;
1691                 zr->overlay_settings = fh->overlay_settings;
1692                 if (!zr->v4l_memgrab_active)
1693                         zr36057_overlay(zr, 1);
1694                 /* When a grab is running, the video will be
1695                  * switched on when grab is finished */
1696         }
1697
1698         /* Make sure the changes come into effect */
1699         return wait_grab_pending(zr);
1700 }
1701
1702         /* get the status of a buffer in the clients buffer queue */
1703 static int
1704 zoran_v4l2_buffer_status (struct file        *file,
1705                           struct v4l2_buffer *buf,
1706                           int                 num)
1707 {
1708         struct zoran_fh *fh = file->private_data;
1709         struct zoran *zr = fh->zr;
1710
1711         buf->flags = V4L2_BUF_FLAG_MAPPED;
1712
1713         switch (fh->map_mode) {
1714         case ZORAN_MAP_MODE_RAW:
1715
1716                 /* check range */
1717                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1718                     !fh->v4l_buffers.allocated) {
1719                         dprintk(1,
1720                                 KERN_ERR
1721                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1722                                 ZR_DEVNAME(zr));
1723                         return -EINVAL;
1724                 }
1725
1726                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1727                 buf->length = fh->v4l_buffers.buffer_size;
1728
1729                 /* get buffer */
1730                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1731                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1732                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1733                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1734                         buf->flags |= V4L2_BUF_FLAG_DONE;
1735                         buf->timestamp =
1736                             fh->v4l_buffers.buffer[num].bs.timestamp;
1737                 } else {
1738                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1739                 }
1740
1741                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1742                         buf->field = V4L2_FIELD_TOP;
1743                 else
1744                         buf->field = V4L2_FIELD_INTERLACED;
1745
1746                 break;
1747
1748         case ZORAN_MAP_MODE_JPG_REC:
1749         case ZORAN_MAP_MODE_JPG_PLAY:
1750
1751                 /* check range */
1752                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1753                     !fh->jpg_buffers.allocated) {
1754                         dprintk(1,
1755                                 KERN_ERR
1756                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1757                                 ZR_DEVNAME(zr));
1758                         return -EINVAL;
1759                 }
1760
1761                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1762                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1763                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1764                 buf->length = fh->jpg_buffers.buffer_size;
1765
1766                 /* these variables are only written after frame has been captured */
1767                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1768                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1769                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1770                         buf->timestamp =
1771                             fh->jpg_buffers.buffer[num].bs.timestamp;
1772                         buf->bytesused =
1773                             fh->jpg_buffers.buffer[num].bs.length;
1774                         buf->flags |= V4L2_BUF_FLAG_DONE;
1775                 } else {
1776                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1777                 }
1778
1779                 /* which fields are these? */
1780                 if (fh->jpg_settings.TmpDcm != 1)
1781                         buf->field =
1782                             fh->jpg_settings.
1783                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1784                 else
1785                         buf->field =
1786                             fh->jpg_settings.
1787                             odd_even ? V4L2_FIELD_SEQ_TB :
1788                             V4L2_FIELD_SEQ_BT;
1789
1790                 break;
1791
1792         default:
1793
1794                 dprintk(5,
1795                         KERN_ERR
1796                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1797                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1798                 return -EINVAL;
1799         }
1800
1801         buf->memory = V4L2_MEMORY_MMAP;
1802         buf->index = num;
1803         buf->m.offset = buf->length * num;
1804
1805         return 0;
1806 }
1807
1808 static int
1809 zoran_set_norm (struct zoran *zr,
1810                 int           norm) /* VIDEO_MODE_* */
1811 {
1812         int norm_encoder, on;
1813
1814         if (zr->v4l_buffers.active != ZORAN_FREE ||
1815             zr->jpg_buffers.active != ZORAN_FREE) {
1816                 dprintk(1,
1817                         KERN_WARNING
1818                         "%s: set_norm() called while in playback/capture mode\n",
1819                         ZR_DEVNAME(zr));
1820                 return -EBUSY;
1821         }
1822
1823         if (lock_norm && norm != zr->norm) {
1824                 if (lock_norm > 1) {
1825                         dprintk(1,
1826                                 KERN_WARNING
1827                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1828                                 ZR_DEVNAME(zr));
1829                         return -EPERM;
1830                 } else {
1831                         dprintk(1,
1832                                 KERN_WARNING
1833                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1834                                 ZR_DEVNAME(zr));
1835                         norm = zr->norm;
1836                 }
1837         }
1838
1839         if (norm != VIDEO_MODE_AUTO &&
1840             (norm < 0 || norm >= zr->card.norms ||
1841              !zr->card.tvn[norm])) {
1842                 dprintk(1,
1843                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1844                         ZR_DEVNAME(zr), norm);
1845                 return -EINVAL;
1846         }
1847
1848         if (norm == VIDEO_MODE_AUTO) {
1849                 int status;
1850
1851                 /* if we have autodetect, ... */
1852                 struct video_decoder_capability caps;
1853                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1854                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1855                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1856                                 ZR_DEVNAME(zr));
1857                         return -EINVAL;
1858                 }
1859
1860                 decoder_command(zr, DECODER_SET_NORM, &norm);
1861
1862                 /* let changes come into effect */
1863                 ssleep(2);
1864
1865                 decoder_command(zr, DECODER_GET_STATUS, &status);
1866                 if (!(status & DECODER_STATUS_GOOD)) {
1867                         dprintk(1,
1868                                 KERN_ERR
1869                                 "%s: set_norm() - no norm detected\n",
1870                                 ZR_DEVNAME(zr));
1871                         /* reset norm */
1872                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1873                         return -EIO;
1874                 }
1875
1876                 if (status & DECODER_STATUS_NTSC)
1877                         norm = VIDEO_MODE_NTSC;
1878                 else if (status & DECODER_STATUS_SECAM)
1879                         norm = VIDEO_MODE_SECAM;
1880                 else
1881                         norm = VIDEO_MODE_PAL;
1882         }
1883         zr->timing = zr->card.tvn[norm];
1884         norm_encoder = norm;
1885
1886         /* We switch overlay off and on since a change in the
1887          * norm needs different VFE settings */
1888         on = zr->overlay_active && !zr->v4l_memgrab_active;
1889         if (on)
1890                 zr36057_overlay(zr, 0);
1891
1892         decoder_command(zr, DECODER_SET_NORM, &norm);
1893         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1894
1895         if (on)
1896                 zr36057_overlay(zr, 1);
1897
1898         /* Make sure the changes come into effect */
1899         zr->norm = norm;
1900
1901         return 0;
1902 }
1903
1904 static int
1905 zoran_set_input (struct zoran *zr,
1906                  int           input)
1907 {
1908         int realinput;
1909
1910         if (input == zr->input) {
1911                 return 0;
1912         }
1913
1914         if (zr->v4l_buffers.active != ZORAN_FREE ||
1915             zr->jpg_buffers.active != ZORAN_FREE) {
1916                 dprintk(1,
1917                         KERN_WARNING
1918                         "%s: set_input() called while in playback/capture mode\n",
1919                         ZR_DEVNAME(zr));
1920                 return -EBUSY;
1921         }
1922
1923         if (input < 0 || input >= zr->card.inputs) {
1924                 dprintk(1,
1925                         KERN_ERR
1926                         "%s: set_input() - unnsupported input %d\n",
1927                         ZR_DEVNAME(zr), input);
1928                 return -EINVAL;
1929         }
1930
1931         realinput = zr->card.input[input].muxsel;
1932         zr->input = input;
1933
1934         decoder_command(zr, DECODER_SET_INPUT, &realinput);
1935
1936         return 0;
1937 }
1938
1939 /*
1940  *   ioctl routine
1941  */
1942
1943 static int
1944 zoran_do_ioctl (struct inode *inode,
1945                 struct file  *file,
1946                 unsigned int  cmd,
1947                 void         *arg)
1948 {
1949         struct zoran_fh *fh = file->private_data;
1950         struct zoran *zr = fh->zr;
1951         /* CAREFUL: used in multiple places here */
1952         struct zoran_jpg_settings settings;
1953
1954         /* we might have older buffers lying around... We don't want
1955          * to wait, but we do want to try cleaning them up ASAP. So
1956          * we try to obtain the lock and free them. If that fails, we
1957          * don't do anything and wait for the next turn. In the end,
1958          * zoran_close() or a new allocation will still free them...
1959          * This is just a 'the sooner the better' extra 'feature'
1960          *
1961          * We don't free the buffers right on munmap() because that
1962          * causes oopses (kfree() inside munmap() oopses for no
1963          * apparent reason - it's also not reproduceable in any way,
1964          * but moving the free code outside the munmap() handler fixes
1965          * all this... If someone knows why, please explain me (Ronald)
1966          */
1967         if (mutex_trylock(&zr->resource_lock)) {
1968                 /* we obtained it! Let's try to free some things */
1969                 if (fh->jpg_buffers.ready_to_be_freed)
1970                         jpg_fbuffer_free(file);
1971                 if (fh->v4l_buffers.ready_to_be_freed)
1972                         v4l_fbuffer_free(file);
1973
1974                 mutex_unlock(&zr->resource_lock);
1975         }
1976
1977         switch (cmd) {
1978
1979         case VIDIOCGCAP:
1980         {
1981                 struct video_capability *vcap = arg;
1982
1983                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1984
1985                 memset(vcap, 0, sizeof(struct video_capability));
1986                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
1987                 vcap->type = ZORAN_VID_TYPE;
1988
1989                 vcap->channels = zr->card.inputs;
1990                 vcap->audios = 0;
1991                 mutex_lock(&zr->resource_lock);
1992                 vcap->maxwidth = BUZ_MAX_WIDTH;
1993                 vcap->maxheight = BUZ_MAX_HEIGHT;
1994                 vcap->minwidth = BUZ_MIN_WIDTH;
1995                 vcap->minheight = BUZ_MIN_HEIGHT;
1996                 mutex_unlock(&zr->resource_lock);
1997
1998                 return 0;
1999         }
2000                 break;
2001
2002         case VIDIOCGCHAN:
2003         {
2004                 struct video_channel *vchan = arg;
2005                 int channel = vchan->channel;
2006
2007                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2008                         ZR_DEVNAME(zr), vchan->channel);
2009
2010                 memset(vchan, 0, sizeof(struct video_channel));
2011                 if (channel > zr->card.inputs || channel < 0) {
2012                         dprintk(1,
2013                                 KERN_ERR
2014                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
2015                                 ZR_DEVNAME(zr), channel);
2016                         return -EINVAL;
2017                 }
2018
2019                 strcpy(vchan->name, zr->card.input[channel].name);
2020
2021                 vchan->tuners = 0;
2022                 vchan->flags = 0;
2023                 vchan->type = VIDEO_TYPE_CAMERA;
2024                 mutex_lock(&zr->resource_lock);
2025                 vchan->norm = zr->norm;
2026                 mutex_unlock(&zr->resource_lock);
2027                 vchan->channel = channel;
2028
2029                 return 0;
2030         }
2031                 break;
2032
2033                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2034                  *
2035                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2036                  * *                                 ^^^^^^^
2037                  * * The famos BTTV driver has it implemented with a struct video_channel argument
2038                  * * and we follow it for compatibility reasons
2039                  * *
2040                  * * BTW: this is the only way the user can set the norm!
2041                  */
2042
2043         case VIDIOCSCHAN:
2044         {
2045                 struct video_channel *vchan = arg;
2046                 int res;
2047
2048                 dprintk(3,
2049                         KERN_DEBUG
2050                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2051                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2052
2053                 mutex_lock(&zr->resource_lock);
2054                 if ((res = zoran_set_input(zr, vchan->channel)))
2055                         goto schan_unlock_and_return;
2056                 if ((res = zoran_set_norm(zr, vchan->norm)))
2057                         goto schan_unlock_and_return;
2058
2059                 /* Make sure the changes come into effect */
2060                 res = wait_grab_pending(zr);
2061         schan_unlock_and_return:
2062                 mutex_unlock(&zr->resource_lock);
2063                 return res;
2064         }
2065                 break;
2066
2067         case VIDIOCGPICT:
2068         {
2069                 struct video_picture *vpict = arg;
2070
2071                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2072
2073                 memset(vpict, 0, sizeof(struct video_picture));
2074                 mutex_lock(&zr->resource_lock);
2075                 vpict->hue = zr->hue;
2076                 vpict->brightness = zr->brightness;
2077                 vpict->contrast = zr->contrast;
2078                 vpict->colour = zr->saturation;
2079                 if (fh->overlay_settings.format) {
2080                         vpict->depth = fh->overlay_settings.format->depth;
2081                         vpict->palette = fh->overlay_settings.format->palette;
2082                 } else {
2083                         vpict->depth = 0;
2084                 }
2085                 mutex_unlock(&zr->resource_lock);
2086
2087                 return 0;
2088         }
2089                 break;
2090
2091         case VIDIOCSPICT:
2092         {
2093                 struct video_picture *vpict = arg;
2094                 int i;
2095
2096                 dprintk(3,
2097                         KERN_DEBUG
2098                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2099                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2100                         vpict->colour, vpict->contrast, vpict->depth,
2101                         vpict->palette);
2102
2103                 for (i = 0; i < NUM_FORMATS; i++) {
2104                         const struct zoran_format *fmt = &zoran_formats[i];
2105
2106                         if (fmt->palette != -1 &&
2107                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2108                             fmt->palette == vpict->palette &&
2109                             fmt->depth == vpict->depth)
2110                                 break;
2111                 }
2112                 if (i == NUM_FORMATS) {
2113                         dprintk(1,
2114                                 KERN_ERR
2115                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2116                                 ZR_DEVNAME(zr), vpict->palette);
2117                         return -EINVAL;
2118                 }
2119
2120                 mutex_lock(&zr->resource_lock);
2121
2122                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2123
2124                 zr->hue = vpict->hue;
2125                 zr->contrast = vpict->contrast;
2126                 zr->saturation = vpict->colour;
2127                 zr->brightness = vpict->brightness;
2128
2129                 fh->overlay_settings.format = &zoran_formats[i];
2130
2131                 mutex_unlock(&zr->resource_lock);
2132
2133                 return 0;
2134         }
2135                 break;
2136
2137         case VIDIOCCAPTURE:
2138         {
2139                 int *on = arg, res;
2140
2141                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2142                         ZR_DEVNAME(zr), *on);
2143
2144                 mutex_lock(&zr->resource_lock);
2145                 res = setup_overlay(file, *on);
2146                 mutex_unlock(&zr->resource_lock);
2147
2148                 return res;
2149         }
2150                 break;
2151
2152         case VIDIOCGWIN:
2153         {
2154                 struct video_window *vwin = arg;
2155
2156                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2157
2158                 memset(vwin, 0, sizeof(struct video_window));
2159                 mutex_lock(&zr->resource_lock);
2160                 vwin->x = fh->overlay_settings.x;
2161                 vwin->y = fh->overlay_settings.y;
2162                 vwin->width = fh->overlay_settings.width;
2163                 vwin->height = fh->overlay_settings.height;
2164                 mutex_unlock(&zr->resource_lock);
2165                 vwin->clipcount = 0;
2166                 return 0;
2167         }
2168                 break;
2169
2170         case VIDIOCSWIN:
2171         {
2172                 struct video_window *vwin = arg;
2173                 int res;
2174
2175                 dprintk(3,
2176                         KERN_DEBUG
2177                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2178                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2179                         vwin->height, vwin->clipcount);
2180
2181                 mutex_lock(&zr->resource_lock);
2182                 res =
2183                     setup_window(file, vwin->x, vwin->y, vwin->width,
2184                                  vwin->height, vwin->clips,
2185                                  vwin->clipcount, NULL);
2186                 mutex_unlock(&zr->resource_lock);
2187
2188                 return res;
2189         }
2190                 break;
2191
2192         case VIDIOCGFBUF:
2193         {
2194                 struct video_buffer *vbuf = arg;
2195
2196                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2197
2198                 mutex_lock(&zr->resource_lock);
2199                 *vbuf = zr->buffer;
2200                 mutex_unlock(&zr->resource_lock);
2201                 return 0;
2202         }
2203                 break;
2204
2205         case VIDIOCSFBUF:
2206         {
2207                 struct video_buffer *vbuf = arg;
2208                 int i, res = 0;
2209
2210                 dprintk(3,
2211                         KERN_DEBUG
2212                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2213                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2214                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2215
2216                 for (i = 0; i < NUM_FORMATS; i++)
2217                         if (zoran_formats[i].depth == vbuf->depth)
2218                                 break;
2219                 if (i == NUM_FORMATS) {
2220                         dprintk(1,
2221                                 KERN_ERR
2222                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2223                                 ZR_DEVNAME(zr), vbuf->depth);
2224                         return -EINVAL;
2225                 }
2226
2227                 mutex_lock(&zr->resource_lock);
2228                 res =
2229                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2230                                   vbuf->width, vbuf->height,
2231                                   vbuf->bytesperline);
2232                 mutex_unlock(&zr->resource_lock);
2233
2234                 return res;
2235         }
2236                 break;
2237
2238         case VIDIOCSYNC:
2239         {
2240                 int *frame = arg, res;
2241
2242                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2243                         ZR_DEVNAME(zr), *frame);
2244
2245                 mutex_lock(&zr->resource_lock);
2246                 res = v4l_sync(file, *frame);
2247                 mutex_unlock(&zr->resource_lock);
2248                 if (!res)
2249                         zr->v4l_sync_tail++;
2250                 return res;
2251         }
2252                 break;
2253
2254         case VIDIOCMCAPTURE:
2255         {
2256                 struct video_mmap *vmap = arg;
2257                 int res;
2258
2259                 dprintk(3,
2260                         KERN_DEBUG
2261                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2262                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2263                         vmap->format);
2264
2265                 mutex_lock(&zr->resource_lock);
2266                 res = v4l_grab(file, vmap);
2267                 mutex_unlock(&zr->resource_lock);
2268                 return res;
2269         }
2270                 break;
2271
2272         case VIDIOCGMBUF:
2273         {
2274                 struct video_mbuf *vmbuf = arg;
2275                 int i, res = 0;
2276
2277                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2278
2279                 vmbuf->size =
2280                     fh->v4l_buffers.num_buffers *
2281                     fh->v4l_buffers.buffer_size;
2282                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2283                 for (i = 0; i < vmbuf->frames; i++) {
2284                         vmbuf->offsets[i] =
2285                             i * fh->v4l_buffers.buffer_size;
2286                 }
2287
2288                 mutex_lock(&zr->resource_lock);
2289
2290                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2291                         dprintk(1,
2292                                 KERN_ERR
2293                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2294                                 ZR_DEVNAME(zr));
2295                         res = -EINVAL;
2296                         goto v4l1reqbuf_unlock_and_return;
2297                 }
2298
2299                 if (v4l_fbuffer_alloc(file)) {
2300                         res = -ENOMEM;
2301                         goto v4l1reqbuf_unlock_and_return;
2302                 }
2303
2304                 /* The next mmap will map the V4L buffers */
2305                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2306         v4l1reqbuf_unlock_and_return:
2307                 mutex_unlock(&zr->resource_lock);
2308
2309                 return res;
2310         }
2311                 break;
2312
2313         case VIDIOCGUNIT:
2314         {
2315                 struct video_unit *vunit = arg;
2316
2317                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2318
2319                 vunit->video = zr->video_dev->minor;
2320                 vunit->vbi = VIDEO_NO_UNIT;
2321                 vunit->radio = VIDEO_NO_UNIT;
2322                 vunit->audio = VIDEO_NO_UNIT;
2323                 vunit->teletext = VIDEO_NO_UNIT;
2324
2325                 return 0;
2326         }
2327                 break;
2328
2329                 /*
2330                  * RJ: In principal we could support subcaptures for V4L grabbing.
2331                  *     Not even the famous BTTV driver has them, however.
2332                  *     If there should be a strong demand, one could consider
2333                  *     to implement them.
2334                  */
2335         case VIDIOCGCAPTURE:
2336         {
2337                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2338                         ZR_DEVNAME(zr));
2339                 return -EINVAL;
2340         }
2341                 break;
2342
2343         case VIDIOCSCAPTURE:
2344         {
2345                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2346                         ZR_DEVNAME(zr));
2347                 return -EINVAL;
2348         }
2349                 break;
2350
2351         case BUZIOC_G_PARAMS:
2352         {
2353                 struct zoran_params *bparams = arg;
2354
2355                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2356
2357                 memset(bparams, 0, sizeof(struct zoran_params));
2358                 bparams->major_version = MAJOR_VERSION;
2359                 bparams->minor_version = MINOR_VERSION;
2360
2361                 mutex_lock(&zr->resource_lock);
2362
2363                 bparams->norm = zr->norm;
2364                 bparams->input = zr->input;
2365
2366                 bparams->decimation = fh->jpg_settings.decimation;
2367                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2368                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2369                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2370                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2371                 bparams->img_x = fh->jpg_settings.img_x;
2372                 bparams->img_y = fh->jpg_settings.img_y;
2373                 bparams->img_width = fh->jpg_settings.img_width;
2374                 bparams->img_height = fh->jpg_settings.img_height;
2375                 bparams->odd_even = fh->jpg_settings.odd_even;
2376
2377                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2378                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2379                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2380                 memcpy(bparams->APP_data,
2381                        fh->jpg_settings.jpg_comp.APP_data,
2382                        sizeof(bparams->APP_data));
2383                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2384                 memcpy(bparams->COM_data,
2385                        fh->jpg_settings.jpg_comp.COM_data,
2386                        sizeof(bparams->COM_data));
2387                 bparams->jpeg_markers =
2388                     fh->jpg_settings.jpg_comp.jpeg_markers;
2389
2390                 mutex_unlock(&zr->resource_lock);
2391
2392                 bparams->VFIFO_FB = 0;
2393
2394                 return 0;
2395         }
2396                 break;
2397
2398         case BUZIOC_S_PARAMS:
2399         {
2400                 struct zoran_params *bparams = arg;
2401                 int res = 0;
2402
2403                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2404
2405                 settings.decimation = bparams->decimation;
2406                 settings.HorDcm = bparams->HorDcm;
2407                 settings.VerDcm = bparams->VerDcm;
2408                 settings.TmpDcm = bparams->TmpDcm;
2409                 settings.field_per_buff = bparams->field_per_buff;
2410                 settings.img_x = bparams->img_x;
2411                 settings.img_y = bparams->img_y;
2412                 settings.img_width = bparams->img_width;
2413                 settings.img_height = bparams->img_height;
2414                 settings.odd_even = bparams->odd_even;
2415
2416                 settings.jpg_comp.quality = bparams->quality;
2417                 settings.jpg_comp.APPn = bparams->APPn;
2418                 settings.jpg_comp.APP_len = bparams->APP_len;
2419                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2420                        sizeof(bparams->APP_data));
2421                 settings.jpg_comp.COM_len = bparams->COM_len;
2422                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2423                        sizeof(bparams->COM_data));
2424                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2425
2426                 mutex_lock(&zr->resource_lock);
2427
2428                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2429                         dprintk(1,
2430                                 KERN_ERR
2431                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2432                                 ZR_DEVNAME(zr));
2433                         res = -EINVAL;
2434                         goto sparams_unlock_and_return;
2435                 }
2436
2437                 /* Check the params first before overwriting our
2438                  * nternal values */
2439                 if (zoran_check_jpg_settings(zr, &settings)) {
2440                         res = -EINVAL;
2441                         goto sparams_unlock_and_return;
2442                 }
2443
2444                 fh->jpg_settings = settings;
2445         sparams_unlock_and_return:
2446                 mutex_unlock(&zr->resource_lock);
2447
2448                 return res;
2449         }
2450                 break;
2451
2452         case BUZIOC_REQBUFS:
2453         {
2454                 struct zoran_requestbuffers *breq = arg;
2455                 int res = 0;
2456
2457                 dprintk(3,
2458                         KERN_DEBUG
2459                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2460                         ZR_DEVNAME(zr), breq->count, breq->size);
2461
2462                 /* Enforce reasonable lower and upper limits */
2463                 if (breq->count < 4)
2464                         breq->count = 4;        /* Could be choosen smaller */
2465                 if (breq->count > jpg_nbufs)
2466                         breq->count = jpg_nbufs;
2467                 breq->size = PAGE_ALIGN(breq->size);
2468                 if (breq->size < 8192)
2469                         breq->size = 8192;      /* Arbitrary */
2470                 /* breq->size is limited by 1 page for the stat_com
2471                  * tables to a Maximum of 2 MB */
2472                 if (breq->size > jpg_bufsize)
2473                         breq->size = jpg_bufsize;
2474                 if (fh->jpg_buffers.need_contiguous &&
2475                     breq->size > MAX_KMALLOC_MEM)
2476                         breq->size = MAX_KMALLOC_MEM;
2477
2478                 mutex_lock(&zr->resource_lock);
2479
2480                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2481                         dprintk(1,
2482                                 KERN_ERR
2483                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2484                                 ZR_DEVNAME(zr));
2485                         res = -EBUSY;
2486                         goto jpgreqbuf_unlock_and_return;
2487                 }
2488
2489                 fh->jpg_buffers.num_buffers = breq->count;
2490                 fh->jpg_buffers.buffer_size = breq->size;
2491
2492                 if (jpg_fbuffer_alloc(file)) {
2493                         res = -ENOMEM;
2494                         goto jpgreqbuf_unlock_and_return;
2495                 }
2496
2497                 /* The next mmap will map the MJPEG buffers - could
2498                  * also be *_PLAY, but it doesn't matter here */
2499                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2500         jpgreqbuf_unlock_and_return:
2501                 mutex_unlock(&zr->resource_lock);
2502
2503                 return res;
2504         }
2505                 break;
2506
2507         case BUZIOC_QBUF_CAPT:
2508         {
2509                 int *frame = arg, res;
2510
2511                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2512                         ZR_DEVNAME(zr), *frame);
2513
2514                 mutex_lock(&zr->resource_lock);
2515                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2516                 mutex_unlock(&zr->resource_lock);
2517
2518                 return res;
2519         }
2520                 break;
2521
2522         case BUZIOC_QBUF_PLAY:
2523         {
2524                 int *frame = arg, res;
2525
2526                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2527                         ZR_DEVNAME(zr), *frame);
2528
2529                 mutex_lock(&zr->resource_lock);
2530                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2531                 mutex_unlock(&zr->resource_lock);
2532
2533                 return res;
2534         }
2535                 break;
2536
2537         case BUZIOC_SYNC:
2538         {
2539                 struct zoran_sync *bsync = arg;
2540                 int res;
2541
2542                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2543
2544                 mutex_lock(&zr->resource_lock);
2545                 res = jpg_sync(file, bsync);
2546                 mutex_unlock(&zr->resource_lock);
2547
2548                 return res;
2549         }
2550                 break;
2551
2552         case BUZIOC_G_STATUS:
2553         {
2554                 struct zoran_status *bstat = arg;
2555                 int norm, input, status, res = 0;
2556
2557                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2558
2559                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2560                         dprintk(1,
2561                                 KERN_ERR
2562                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2563                                 ZR_DEVNAME(zr));
2564                         return -EINVAL;
2565                 }
2566
2567                 input = zr->card.input[bstat->input].muxsel;
2568                 norm = VIDEO_MODE_AUTO;
2569
2570                 mutex_lock(&zr->resource_lock);
2571
2572                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2573                         dprintk(1,
2574                                 KERN_ERR
2575                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2576                                 ZR_DEVNAME(zr));
2577                         res = -EINVAL;
2578                         goto gstat_unlock_and_return;
2579                 }
2580
2581                 decoder_command(zr, DECODER_SET_INPUT, &input);
2582                 decoder_command(zr, DECODER_SET_NORM, &norm);
2583
2584                 /* sleep 1 second */
2585                 ssleep(1);
2586
2587                 /* Get status of video decoder */
2588                 decoder_command(zr, DECODER_GET_STATUS, &status);
2589
2590                 /* restore previous input and norm */
2591                 input = zr->card.input[zr->input].muxsel;
2592                 decoder_command(zr, DECODER_SET_INPUT, &input);
2593                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2594         gstat_unlock_and_return:
2595                 mutex_unlock(&zr->resource_lock);
2596
2597                 if (!res) {
2598                         bstat->signal =
2599                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2600                         if (status & DECODER_STATUS_NTSC)
2601                                 bstat->norm = VIDEO_MODE_NTSC;
2602                         else if (status & DECODER_STATUS_SECAM)
2603                                 bstat->norm = VIDEO_MODE_SECAM;
2604                         else
2605                                 bstat->norm = VIDEO_MODE_PAL;
2606
2607                         bstat->color =
2608                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2609                 }
2610
2611                 return res;
2612         }
2613                 break;
2614
2615                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2616                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2617                  */
2618
2619         case VIDIOC_QUERYCAP:
2620         {
2621                 struct v4l2_capability *cap = arg;
2622
2623                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2624
2625                 memset(cap, 0, sizeof(*cap));
2626                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2627                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2628                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2629                          pci_name(zr->pci_dev));
2630                 cap->version =
2631                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2632                                    RELEASE_VERSION);
2633                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2634
2635                 return 0;
2636         }
2637                 break;
2638
2639         case VIDIOC_ENUM_FMT:
2640         {
2641                 struct v4l2_fmtdesc *fmt = arg;
2642                 int index = fmt->index, num = -1, i, flag = 0, type =
2643                     fmt->type;
2644
2645                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2646                         ZR_DEVNAME(zr), fmt->index);
2647
2648                 switch (fmt->type) {
2649                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2650                         flag = ZORAN_FORMAT_CAPTURE;
2651                         break;
2652                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2653                         flag = ZORAN_FORMAT_PLAYBACK;
2654                         break;
2655                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2656                         flag = ZORAN_FORMAT_OVERLAY;
2657                         break;
2658                 default:
2659                         dprintk(1,
2660                                 KERN_ERR
2661                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2662                                 ZR_DEVNAME(zr), fmt->type);
2663                         return -EINVAL;
2664                 }
2665
2666                 for (i = 0; i < NUM_FORMATS; i++) {
2667                         if (zoran_formats[i].flags & flag)
2668                                 num++;
2669                         if (num == fmt->index)
2670                                 break;
2671                 }
2672                 if (fmt->index < 0 /* late, but not too late */  ||
2673                     i == NUM_FORMATS)
2674                         return -EINVAL;
2675
2676                 memset(fmt, 0, sizeof(*fmt));
2677                 fmt->index = index;
2678                 fmt->type = type;
2679                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2680                 fmt->pixelformat = zoran_formats[i].fourcc;
2681                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2682                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2683
2684                 return 0;
2685         }
2686                 break;
2687
2688         case VIDIOC_G_FMT:
2689         {
2690                 struct v4l2_format *fmt = arg;
2691                 int type = fmt->type;
2692
2693                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2694
2695                 memset(fmt, 0, sizeof(*fmt));
2696                 fmt->type = type;
2697
2698                 switch (fmt->type) {
2699                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2700
2701                         mutex_lock(&zr->resource_lock);
2702
2703                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2704                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2705                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2706                         fmt->fmt.win.w.height =
2707                             fh->overlay_settings.height;
2708                         if (fh->overlay_settings.width * 2 >
2709                             BUZ_MAX_HEIGHT)
2710                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2711                         else
2712                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2713
2714                         mutex_unlock(&zr->resource_lock);
2715
2716                         break;
2717
2718                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2719                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2720
2721                         mutex_lock(&zr->resource_lock);
2722
2723                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2724                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2725
2726                                 fmt->fmt.pix.width =
2727                                     fh->v4l_settings.width;
2728                                 fmt->fmt.pix.height =
2729                                     fh->v4l_settings.height;
2730                                 fmt->fmt.pix.sizeimage =
2731                                     fh->v4l_settings.bytesperline *
2732                                     fh->v4l_settings.height;
2733                                 fmt->fmt.pix.pixelformat =
2734                                     fh->v4l_settings.format->fourcc;
2735                                 fmt->fmt.pix.colorspace =
2736                                     fh->v4l_settings.format->colorspace;
2737                                 fmt->fmt.pix.bytesperline =
2738                                     fh->v4l_settings.bytesperline;
2739                                 if (BUZ_MAX_HEIGHT <
2740                                     (fh->v4l_settings.height * 2))
2741                                         fmt->fmt.pix.field =
2742                                             V4L2_FIELD_INTERLACED;
2743                                 else
2744                                         fmt->fmt.pix.field =
2745                                             V4L2_FIELD_TOP;
2746
2747                         } else {
2748
2749                                 fmt->fmt.pix.width =
2750                                     fh->jpg_settings.img_width /
2751                                     fh->jpg_settings.HorDcm;
2752                                 fmt->fmt.pix.height =
2753                                     fh->jpg_settings.img_height /
2754                                     (fh->jpg_settings.VerDcm *
2755                                      fh->jpg_settings.TmpDcm);
2756                                 fmt->fmt.pix.sizeimage =
2757                                     zoran_v4l2_calc_bufsize(&fh->
2758                                                             jpg_settings);
2759                                 fmt->fmt.pix.pixelformat =
2760                                     V4L2_PIX_FMT_MJPEG;
2761                                 if (fh->jpg_settings.TmpDcm == 1)
2762                                         fmt->fmt.pix.field =
2763                                             (fh->jpg_settings.
2764                                              odd_even ? V4L2_FIELD_SEQ_BT :
2765                                              V4L2_FIELD_SEQ_BT);
2766                                 else
2767                                         fmt->fmt.pix.field =
2768                                             (fh->jpg_settings.
2769                                              odd_even ? V4L2_FIELD_TOP :
2770                                              V4L2_FIELD_BOTTOM);
2771
2772                                 fmt->fmt.pix.bytesperline = 0;
2773                                 fmt->fmt.pix.colorspace =
2774                                     V4L2_COLORSPACE_SMPTE170M;
2775                         }
2776
2777                         mutex_unlock(&zr->resource_lock);
2778
2779                         break;
2780
2781                 default:
2782                         dprintk(1,
2783                                 KERN_ERR
2784                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2785                                 ZR_DEVNAME(zr), fmt->type);
2786                         return -EINVAL;
2787                 }
2788                 return 0;
2789         }
2790                 break;
2791
2792         case VIDIOC_S_FMT:
2793         {
2794                 struct v4l2_format *fmt = arg;
2795                 int i, res = 0;
2796                 __le32 printformat;
2797
2798                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2799                         ZR_DEVNAME(zr), fmt->type);
2800
2801                 switch (fmt->type) {
2802                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2803
2804                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2805                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2806                                 fmt->fmt.win.w.width,
2807                                 fmt->fmt.win.w.height,
2808                                 fmt->fmt.win.clipcount,
2809                                 fmt->fmt.win.bitmap);
2810                         mutex_lock(&zr->resource_lock);
2811                         res =
2812                             setup_window(file, fmt->fmt.win.w.left,
2813                                          fmt->fmt.win.w.top,
2814                                          fmt->fmt.win.w.width,
2815                                          fmt->fmt.win.w.height,
2816                                          (struct video_clip __user *)
2817                                            fmt->fmt.win.clips,
2818                                          fmt->fmt.win.clipcount,
2819                                          fmt->fmt.win.bitmap);
2820                         mutex_unlock(&zr->resource_lock);
2821                         return res;
2822                         break;
2823
2824                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2825                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2826
2827                         printformat =
2828                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2829                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2830                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2831                                 fmt->fmt.pix.pixelformat,
2832                                 (char *) &printformat);
2833
2834                         /* we can be requested to do JPEG/raw playback/capture */
2835                         if (!
2836                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2837                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2838                               fmt->fmt.pix.pixelformat ==
2839                               V4L2_PIX_FMT_MJPEG))) {
2840                                 dprintk(1,
2841                                         KERN_ERR
2842                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2843                                         ZR_DEVNAME(zr), fmt->type,
2844                                         fmt->fmt.pix.pixelformat,
2845                                         (char *) &printformat);
2846                                 return -EINVAL;
2847                         }
2848
2849                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2850                                 mutex_lock(&zr->resource_lock);
2851
2852                                 settings = fh->jpg_settings;
2853
2854                                 if (fh->v4l_buffers.allocated ||
2855                                     fh->jpg_buffers.allocated) {
2856                                         dprintk(1,
2857                                                 KERN_ERR
2858                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2859                                                 ZR_DEVNAME(zr));
2860                                         res = -EBUSY;
2861                                         goto sfmtjpg_unlock_and_return;
2862                                 }
2863
2864                                 /* we actually need to set 'real' parameters now */
2865                                 if ((fmt->fmt.pix.height * 2) >
2866                                     BUZ_MAX_HEIGHT)
2867                                         settings.TmpDcm = 1;
2868                                 else
2869                                         settings.TmpDcm = 2;
2870                                 settings.decimation = 0;
2871                                 if (fmt->fmt.pix.height <=
2872                                     fh->jpg_settings.img_height / 2)
2873                                         settings.VerDcm = 2;
2874                                 else
2875                                         settings.VerDcm = 1;
2876                                 if (fmt->fmt.pix.width <=
2877                                     fh->jpg_settings.img_width / 4)
2878                                         settings.HorDcm = 4;
2879                                 else if (fmt->fmt.pix.width <=
2880                                          fh->jpg_settings.img_width / 2)
2881                                         settings.HorDcm = 2;
2882                                 else
2883                                         settings.HorDcm = 1;
2884                                 if (settings.TmpDcm == 1)
2885                                         settings.field_per_buff = 2;
2886                                 else
2887                                         settings.field_per_buff = 1;
2888
2889                                 /* check */
2890                                 if ((res =
2891                                      zoran_check_jpg_settings(zr,
2892                                                               &settings)))
2893                                         goto sfmtjpg_unlock_and_return;
2894
2895                                 /* it's ok, so set them */
2896                                 fh->jpg_settings = settings;
2897
2898                                 /* tell the user what we actually did */
2899                                 fmt->fmt.pix.width =
2900                                     settings.img_width / settings.HorDcm;
2901                                 fmt->fmt.pix.height =
2902                                     settings.img_height * 2 /
2903                                     (settings.TmpDcm * settings.VerDcm);
2904                                 if (settings.TmpDcm == 1)
2905                                         fmt->fmt.pix.field =
2906                                             (fh->jpg_settings.
2907                                              odd_even ? V4L2_FIELD_SEQ_TB :
2908                                              V4L2_FIELD_SEQ_BT);
2909                                 else
2910                                         fmt->fmt.pix.field =
2911                                             (fh->jpg_settings.
2912                                              odd_even ? V4L2_FIELD_TOP :
2913                                              V4L2_FIELD_BOTTOM);
2914                                 fh->jpg_buffers.buffer_size =
2915                                     zoran_v4l2_calc_bufsize(&fh->
2916                                                             jpg_settings);
2917                                 fmt->fmt.pix.bytesperline = 0;
2918                                 fmt->fmt.pix.sizeimage =
2919                                     fh->jpg_buffers.buffer_size;
2920                                 fmt->fmt.pix.colorspace =
2921                                     V4L2_COLORSPACE_SMPTE170M;
2922
2923                                 /* we hereby abuse this variable to show that
2924                                  * we're gonna do mjpeg capture */
2925                                 fh->map_mode =
2926                                     (fmt->type ==
2927                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2928                                     ZORAN_MAP_MODE_JPG_REC :
2929                                     ZORAN_MAP_MODE_JPG_PLAY;
2930                         sfmtjpg_unlock_and_return:
2931                                 mutex_unlock(&zr->resource_lock);
2932                         } else {
2933                                 for (i = 0; i < NUM_FORMATS; i++)
2934                                         if (fmt->fmt.pix.pixelformat ==
2935                                             zoran_formats[i].fourcc)
2936                                                 break;
2937                                 if (i == NUM_FORMATS) {
2938                                         dprintk(1,
2939                                                 KERN_ERR
2940                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2941                                                 ZR_DEVNAME(zr),
2942                                                 fmt->fmt.pix.pixelformat,
2943                                                 (char *) &printformat);
2944                                         return -EINVAL;
2945                                 }
2946                                 mutex_lock(&zr->resource_lock);
2947                                 if (fh->jpg_buffers.allocated ||
2948                                     (fh->v4l_buffers.allocated &&
2949                                      fh->v4l_buffers.active !=
2950                                      ZORAN_FREE)) {
2951                                         dprintk(1,
2952                                                 KERN_ERR
2953                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2954                                                 ZR_DEVNAME(zr));
2955                                         res = -EBUSY;
2956                                         goto sfmtv4l_unlock_and_return;
2957                                 }
2958                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2959                                         fmt->fmt.pix.height =
2960                                             BUZ_MAX_HEIGHT;
2961                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2962                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2963
2964                                 if ((res =
2965                                      zoran_v4l_set_format(file,
2966                                                           fmt->fmt.pix.
2967                                                           width,
2968                                                           fmt->fmt.pix.
2969                                                           height,
2970                                                           &zoran_formats
2971                                                           [i])))
2972                                         goto sfmtv4l_unlock_and_return;
2973
2974                                 /* tell the user the
2975                                  * results/missing stuff */
2976                                 fmt->fmt.pix.bytesperline =
2977                                         fh->v4l_settings.bytesperline;
2978                                 fmt->fmt.pix.sizeimage =
2979                                         fh->v4l_settings.height *
2980                                         fh->v4l_settings.bytesperline;
2981                                 fmt->fmt.pix.colorspace =
2982                                         fh->v4l_settings.format->colorspace;
2983                                 if (BUZ_MAX_HEIGHT <
2984                                     (fh->v4l_settings.height * 2))
2985                                         fmt->fmt.pix.field =
2986                                             V4L2_FIELD_INTERLACED;
2987                                 else
2988                                         fmt->fmt.pix.field =
2989                                             V4L2_FIELD_TOP;
2990
2991                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2992                         sfmtv4l_unlock_and_return:
2993                                 mutex_unlock(&zr->resource_lock);
2994                         }
2995
2996                         break;
2997
2998                 default:
2999                         dprintk(3, "unsupported\n");
3000                         dprintk(1,
3001                                 KERN_ERR
3002                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3003                                 ZR_DEVNAME(zr), fmt->type);
3004                         return -EINVAL;
3005                 }
3006
3007                 return res;
3008         }
3009                 break;
3010
3011         case VIDIOC_G_FBUF:
3012         {
3013                 struct v4l2_framebuffer *fb = arg;
3014
3015                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3016
3017                 memset(fb, 0, sizeof(*fb));
3018                 mutex_lock(&zr->resource_lock);
3019                 fb->base = zr->buffer.base;
3020                 fb->fmt.width = zr->buffer.width;
3021                 fb->fmt.height = zr->buffer.height;
3022                 if (zr->overlay_settings.format) {
3023                         fb->fmt.pixelformat =
3024                                 fh->overlay_settings.format->fourcc;
3025                 }
3026                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3027                 mutex_unlock(&zr->resource_lock);
3028                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3029                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3030                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3031                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3032
3033                 return 0;
3034         }
3035                 break;
3036
3037         case VIDIOC_S_FBUF:
3038         {
3039                 int i, res = 0;
3040                 struct v4l2_framebuffer *fb = arg;
3041                 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3042
3043                 dprintk(3,
3044                         KERN_DEBUG
3045                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3046                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3047                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3048                         (char *) &printformat);
3049
3050                 for (i = 0; i < NUM_FORMATS; i++)
3051                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3052                                 break;
3053                 if (i == NUM_FORMATS) {
3054                         dprintk(1,
3055                                 KERN_ERR
3056                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3057                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3058                                 (char *) &printformat);
3059                         return -EINVAL;
3060                 }
3061
3062                 mutex_lock(&zr->resource_lock);
3063                 res =
3064                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3065                                   fb->fmt.width, fb->fmt.height,
3066                                   fb->fmt.bytesperline);
3067                 mutex_unlock(&zr->resource_lock);
3068
3069                 return res;
3070         }
3071                 break;
3072
3073         case VIDIOC_OVERLAY:
3074         {
3075                 int *on = arg, res;
3076
3077                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3078                         ZR_DEVNAME(zr), *on);
3079
3080                 mutex_lock(&zr->resource_lock);
3081                 res = setup_overlay(file, *on);
3082                 mutex_unlock(&zr->resource_lock);
3083
3084                 return res;
3085         }
3086                 break;
3087
3088         case VIDIOC_REQBUFS:
3089         {
3090                 struct v4l2_requestbuffers *req = arg;
3091                 int res = 0;
3092
3093                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3094                         ZR_DEVNAME(zr), req->type);
3095
3096                 if (req->memory != V4L2_MEMORY_MMAP) {
3097                         dprintk(1,
3098                                 KERN_ERR
3099                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3100                                 ZR_DEVNAME(zr), req->memory);
3101                         return -EINVAL;
3102                 }
3103
3104                 mutex_lock(&zr->resource_lock);
3105
3106                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3107                         dprintk(1,
3108                                 KERN_ERR
3109                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3110                                 ZR_DEVNAME(zr));
3111                         res = -EBUSY;
3112                         goto v4l2reqbuf_unlock_and_return;
3113                 }
3114
3115                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3116                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3117
3118                         /* control user input */
3119                         if (req->count < 2)
3120                                 req->count = 2;
3121                         if (req->count > v4l_nbufs)
3122                                 req->count = v4l_nbufs;
3123                         fh->v4l_buffers.num_buffers = req->count;
3124
3125                         if (v4l_fbuffer_alloc(file)) {
3126                                 res = -ENOMEM;
3127                                 goto v4l2reqbuf_unlock_and_return;
3128                         }
3129
3130                         /* The next mmap will map the V4L buffers */
3131                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3132
3133                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3134                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3135
3136                         /* we need to calculate size ourselves now */
3137                         if (req->count < 4)
3138                                 req->count = 4;
3139                         if (req->count > jpg_nbufs)
3140                                 req->count = jpg_nbufs;
3141                         fh->jpg_buffers.num_buffers = req->count;
3142                         fh->jpg_buffers.buffer_size =
3143                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3144
3145                         if (jpg_fbuffer_alloc(file)) {
3146                                 res = -ENOMEM;
3147                                 goto v4l2reqbuf_unlock_and_return;
3148                         }
3149
3150                         /* The next mmap will map the MJPEG buffers */
3151                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3152                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3153                         else
3154                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3155
3156                 } else {
3157                         dprintk(1,
3158                                 KERN_ERR
3159                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3160                                 ZR_DEVNAME(zr), req->type);
3161                         res = -EINVAL;
3162                         goto v4l2reqbuf_unlock_and_return;
3163                 }
3164         v4l2reqbuf_unlock_and_return:
3165                 mutex_unlock(&zr->resource_lock);
3166
3167                 return 0;
3168         }
3169                 break;
3170
3171         case VIDIOC_QUERYBUF:
3172         {
3173                 struct v4l2_buffer *buf = arg;
3174                 __u32 type = buf->type;
3175                 int index = buf->index, res;
3176
3177                 dprintk(3,
3178                         KERN_DEBUG
3179                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3180                         ZR_DEVNAME(zr), buf->index, buf->type);
3181
3182                 memset(buf, 0, sizeof(*buf));
3183                 buf->type = type;
3184                 buf->index = index;
3185
3186                 mutex_lock(&zr->resource_lock);
3187                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3188                 mutex_unlock(&zr->resource_lock);
3189
3190                 return res;
3191         }
3192                 break;
3193
3194         case VIDIOC_QBUF:
3195         {
3196                 struct v4l2_buffer *buf = arg;
3197                 int res = 0, codec_mode, buf_type;
3198
3199                 dprintk(3,
3200                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3201                         ZR_DEVNAME(zr), buf->type, buf->index);
3202
3203                 mutex_lock(&zr->resource_lock);
3204
3205                 switch (fh->map_mode) {
3206                 case ZORAN_MAP_MODE_RAW:
3207                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3208                                 dprintk(1,
3209                                         KERN_ERR
3210                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3211                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3212                                 res = -EINVAL;
3213                                 goto qbuf_unlock_and_return;
3214                         }
3215
3216                         res = zoran_v4l_queue_frame(file, buf->index);
3217                         if (res)
3218                                 goto qbuf_unlock_and_return;
3219                         if (!zr->v4l_memgrab_active &&
3220                             fh->v4l_buffers.active == ZORAN_LOCKED)
3221                                 zr36057_set_memgrab(zr, 1);
3222                         break;
3223
3224                 case ZORAN_MAP_MODE_JPG_REC:
3225                 case ZORAN_MAP_MODE_JPG_PLAY:
3226                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3227                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3228                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3229                         } else {
3230                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3231                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3232                         }
3233
3234                         if (buf->type != buf_type) {
3235                                 dprintk(1,
3236                                         KERN_ERR
3237                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3238                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3239                                 res = -EINVAL;
3240                                 goto qbuf_unlock_and_return;
3241                         }
3242
3243                         res =
3244                             zoran_jpg_queue_frame(file, buf->index,
3245                                                   codec_mode);
3246                         if (res != 0)
3247                                 goto qbuf_unlock_and_return;
3248                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3249                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3250                                 zr36057_enable_jpg(zr, codec_mode);
3251                         }
3252                         break;
3253
3254                 default:
3255                         dprintk(1,
3256                                 KERN_ERR
3257                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3258                                 ZR_DEVNAME(zr), buf->type);
3259                         res = -EINVAL;
3260                         goto qbuf_unlock_and_return;
3261                 }
3262         qbuf_unlock_and_return:
3263                 mutex_unlock(&zr->resource_lock);
3264
3265                 return res;
3266         }
3267                 break;
3268
3269         case VIDIOC_DQBUF:
3270         {
3271                 struct v4l2_buffer *buf = arg;
3272                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3273
3274                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3275                         ZR_DEVNAME(zr), buf->type);
3276
3277                 mutex_lock(&zr->resource_lock);
3278
3279                 switch (fh->map_mode) {
3280                 case ZORAN_MAP_MODE_RAW:
3281                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3282                                 dprintk(1,
3283                                         KERN_ERR
3284                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3285                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3286                                 res = -EINVAL;
3287                                 goto dqbuf_unlock_and_return;
3288                         }
3289
3290                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3291                         if (file->f_flags & O_NONBLOCK &&
3292                             zr->v4l_buffers.buffer[num].state !=
3293                             BUZ_STATE_DONE) {
3294                                 res = -EAGAIN;
3295                                 goto dqbuf_unlock_and_return;
3296                         }
3297                         res = v4l_sync(file, num);
3298                         if (res)
3299                                 goto dqbuf_unlock_and_return;
3300                         else
3301                                 zr->v4l_sync_tail++;
3302                         res = zoran_v4l2_buffer_status(file, buf, num);
3303                         break;
3304
3305                 case ZORAN_MAP_MODE_JPG_REC:
3306                 case ZORAN_MAP_MODE_JPG_PLAY:
3307                 {
3308                         struct zoran_sync bs;
3309
3310                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3311                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3312                         else
3313                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3314
3315                         if (buf->type != buf_type) {
3316                                 dprintk(1,
3317                                         KERN_ERR
3318                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3319                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3320                                 res = -EINVAL;
3321                                 goto dqbuf_unlock_and_return;
3322                         }
3323
3324                         num =
3325                             zr->jpg_pend[zr->
3326                                          jpg_que_tail & BUZ_MASK_FRAME];
3327
3328                         if (file->f_flags & O_NONBLOCK &&
3329                             zr->jpg_buffers.buffer[num].state !=
3330                             BUZ_STATE_DONE) {
3331                                 res = -EAGAIN;
3332                                 goto dqbuf_unlock_and_return;
3333                         }
3334                         res = jpg_sync(file, &bs);
3335                         if (res)
3336                                 goto dqbuf_unlock_and_return;
3337                         res =
3338                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3339                         break;
3340                 }
3341
3342                 default:
3343                         dprintk(1,
3344                                 KERN_ERR
3345                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3346                                 ZR_DEVNAME(zr), buf->type);
3347                         res = -EINVAL;
3348                         goto dqbuf_unlock_and_return;
3349                 }
3350         dqbuf_unlock_and_return:
3351                 mutex_unlock(&zr->resource_lock);
3352
3353                 return res;
3354         }
3355                 break;
3356
3357         case VIDIOC_STREAMON:
3358         {
3359                 int res = 0;
3360
3361                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3362
3363                 mutex_lock(&zr->resource_lock);
3364
3365                 switch (fh->map_mode) {
3366                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3367                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3368                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3369                                 res = -EBUSY;
3370                                 goto strmon_unlock_and_return;
3371                         }
3372
3373                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3374                             ZORAN_LOCKED;
3375                         zr->v4l_settings = fh->v4l_settings;
3376
3377                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3378                         if (!zr->v4l_memgrab_active &&
3379                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3380                                 zr36057_set_memgrab(zr, 1);
3381                         }
3382                         break;
3383
3384                 case ZORAN_MAP_MODE_JPG_REC:
3385                 case ZORAN_MAP_MODE_JPG_PLAY:
3386                         /* what is the codec mode right now? */
3387                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3388                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3389                                 res = -EBUSY;
3390                                 goto strmon_unlock_and_return;
3391                         }
3392
3393                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3394                             ZORAN_LOCKED;
3395
3396                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3397                                 /* Start the jpeg codec when the first frame is queued  */
3398                                 jpeg_start(zr);
3399                         }
3400
3401                         break;
3402                 default:
3403                         dprintk(1,
3404                                 KERN_ERR
3405                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3406                                 ZR_DEVNAME(zr), fh->map_mode);
3407                         res = -EINVAL;
3408                         goto strmon_unlock_and_return;
3409                 }
3410         strmon_unlock_and_return:
3411                 mutex_unlock(&zr->resource_lock);
3412
3413                 return res;
3414         }
3415                 break;
3416
3417         case VIDIOC_STREAMOFF:
3418         {
3419                 int i, res = 0;
3420
3421                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3422
3423                 mutex_lock(&zr->resource_lock);
3424
3425                 switch (fh->map_mode) {
3426                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3427                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3428                             zr->v4l_buffers.active != ZORAN_FREE) {
3429                                 res = -EPERM;   /* stay off other's settings! */
3430                                 goto strmoff_unlock_and_return;
3431                         }
3432                         if (zr->v4l_buffers.active == ZORAN_FREE)
3433                                 goto strmoff_unlock_and_return;
3434
3435                         /* unload capture */
3436                         if (zr->v4l_memgrab_active) {
3437                                 unsigned long flags;
3438
3439                                 spin_lock_irqsave(&zr->spinlock, flags);
3440                                 zr36057_set_memgrab(zr, 0);
3441                                 spin_unlock_irqrestore(&zr->spinlock, flags);
3442                         }
3443
3444                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3445                                 zr->v4l_buffers.buffer[i].state =
3446                                     BUZ_STATE_USER;
3447                         fh->v4l_buffers = zr->v4l_buffers;
3448
3449                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3450                             ZORAN_FREE;
3451
3452                         zr->v4l_grab_seq = 0;
3453                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3454                         zr->v4l_sync_tail = 0;
3455
3456                         break;
3457
3458                 case ZORAN_MAP_MODE_JPG_REC:
3459                 case ZORAN_MAP_MODE_JPG_PLAY:
3460                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3461                             zr->jpg_buffers.active != ZORAN_FREE) {
3462                                 res = -EPERM;   /* stay off other's settings! */
3463                                 goto strmoff_unlock_and_return;
3464                         }
3465                         if (zr->jpg_buffers.active == ZORAN_FREE)
3466                                 goto strmoff_unlock_and_return;
3467
3468                         res =
3469                             jpg_qbuf(file, -1,
3470                                      (fh->map_mode ==
3471                                       ZORAN_MAP_MODE_JPG_REC) ?
3472                                      BUZ_MODE_MOTION_COMPRESS :
3473                                      BUZ_MODE_MOTION_DECOMPRESS);
3474                         if (res)
3475                                 goto strmoff_unlock_and_return;
3476                         break;
3477                 default:
3478                         dprintk(1,
3479                                 KERN_ERR
3480                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3481                                 ZR_DEVNAME(zr), fh->map_mode);
3482                         res = -EINVAL;
3483                         goto strmoff_unlock_and_return;
3484                 }
3485         strmoff_unlock_and_return:
3486                 mutex_unlock(&zr->resource_lock);
3487
3488                 return res;
3489         }
3490                 break;
3491
3492         case VIDIOC_QUERYCTRL:
3493         {
3494                 struct v4l2_queryctrl *ctrl = arg;
3495
3496                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3497                         ZR_DEVNAME(zr), ctrl->id);
3498
3499                 /* we only support hue/saturation/contrast/brightness */
3500                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3501                     ctrl->id > V4L2_CID_HUE)
3502                         return -EINVAL;
3503                 else {
3504                         int id = ctrl->id;
3505                         memset(ctrl, 0, sizeof(*ctrl));
3506                         ctrl->id = id;
3507                 }
3508
3509                 switch (ctrl->id) {
3510                 case V4L2_CID_BRIGHTNESS:
3511                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3512                         break;
3513                 case V4L2_CID_CONTRAST:
3514                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3515                         break;
3516                 case V4L2_CID_SATURATION:
3517                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3518                         break;
3519                 case V4L2_CID_HUE:
3520                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3521                         break;
3522                 }
3523
3524                 ctrl->minimum = 0;
3525                 ctrl->maximum = 65535;
3526                 ctrl->step = 1;
3527                 ctrl->default_value = 32768;
3528                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3529
3530                 return 0;
3531         }
3532                 break;
3533
3534         case VIDIOC_G_CTRL:
3535         {
3536                 struct v4l2_control *ctrl = arg;
3537
3538                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3539                         ZR_DEVNAME(zr), ctrl->id);
3540
3541                 /* we only support hue/saturation/contrast/brightness */
3542                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3543                     ctrl->id > V4L2_CID_HUE)
3544                         return -EINVAL;
3545
3546                 mutex_lock(&zr->resource_lock);
3547                 switch (ctrl->id) {
3548                 case V4L2_CID_BRIGHTNESS:
3549                         ctrl->value = zr->brightness;
3550                         break;
3551                 case V4L2_CID_CONTRAST:
3552                         ctrl->value = zr->contrast;
3553                         break;
3554                 case V4L2_CID_SATURATION:
3555                         ctrl->value = zr->saturation;
3556                         break;
3557                 case V4L2_CID_HUE:
3558                         ctrl->value = zr->hue;
3559                         break;
3560                 }
3561                 mutex_unlock(&zr->resource_lock);
3562
3563                 return 0;
3564         }
3565                 break;
3566
3567         case VIDIOC_S_CTRL:
3568         {
3569                 struct v4l2_control *ctrl = arg;
3570                 struct video_picture pict;
3571
3572                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3573                         ZR_DEVNAME(zr), ctrl->id);
3574
3575                 /* we only support hue/saturation/contrast/brightness */
3576                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3577                     ctrl->id > V4L2_CID_HUE)
3578                         return -EINVAL;
3579
3580                 if (ctrl->value < 0 || ctrl->value > 65535) {
3581                         dprintk(1,
3582                                 KERN_ERR
3583                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3584                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3585                         return -EINVAL;
3586                 }
3587
3588                 mutex_lock(&zr->resource_lock);
3589                 switch (ctrl->id) {
3590                 case V4L2_CID_BRIGHTNESS:
3591                         zr->brightness = ctrl->value;
3592                         break;
3593                 case V4L2_CID_CONTRAST:
3594                         zr->contrast = ctrl->value;
3595                         break;
3596                 case V4L2_CID_SATURATION:
3597                         zr->saturation = ctrl->value;
3598                         break;
3599                 case V4L2_CID_HUE:
3600                         zr->hue = ctrl->value;
3601                         break;
3602                 }
3603                 pict.brightness = zr->brightness;
3604                 pict.contrast = zr->contrast;
3605                 pict.colour = zr->saturation;
3606                 pict.hue = zr->hue;
3607
3608                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3609
3610                 mutex_unlock(&zr->resource_lock);
3611
3612                 return 0;
3613         }
3614                 break;
3615
3616         case VIDIOC_ENUMSTD:
3617         {
3618                 struct v4l2_standard *std = arg;
3619
3620                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3621                         ZR_DEVNAME(zr), std->index);
3622
3623                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3624                         return -EINVAL;
3625                 else {
3626                         int id = std->index;
3627                         memset(std, 0, sizeof(*std));
3628                         std->index = id;
3629                 }
3630
3631                 if (std->index == zr->card.norms) {
3632                         /* if we have autodetect, ... */
3633                         struct video_decoder_capability caps;
3634                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3635                                         &caps);
3636                         if (caps.flags & VIDEO_DECODER_AUTO) {
3637                                 std->id = V4L2_STD_ALL;
3638                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3639                                 return 0;
3640                         } else
3641                                 return -EINVAL;
3642                 }
3643                 switch (std->index) {
3644                 case 0:
3645                         std->id = V4L2_STD_PAL;
3646                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3647                         std->frameperiod.numerator = 1;
3648                         std->frameperiod.denominator = 25;
3649                         std->framelines = zr->card.tvn[0]->Ht;
3650                         break;
3651                 case 1:
3652                         std->id = V4L2_STD_NTSC;
3653                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3654                         std->frameperiod.numerator = 1001;
3655                         std->frameperiod.denominator = 30000;
3656                         std->framelines = zr->card.tvn[1]->Ht;
3657                         break;
3658                 case 2:
3659                         std->id = V4L2_STD_SECAM;
3660                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3661                         std->frameperiod.numerator = 1;
3662                         std->frameperiod.denominator = 25;
3663                         std->framelines = zr->card.tvn[2]->Ht;
3664                         break;
3665                 }
3666
3667                 return 0;
3668         }
3669                 break;
3670
3671         case VIDIOC_G_STD:
3672         {
3673                 v4l2_std_id *std = arg;
3674                 int norm;
3675
3676                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3677
3678                 mutex_lock(&zr->resource_lock);
3679                 norm = zr->norm;
3680                 mutex_unlock(&zr->resource_lock);
3681
3682                 switch (norm) {
3683                 case VIDEO_MODE_PAL:
3684                         *std = V4L2_STD_PAL;
3685                         break;
3686                 case VIDEO_MODE_NTSC:
3687                         *std = V4L2_STD_NTSC;
3688                         break;
3689                 case VIDEO_MODE_SECAM:
3690                         *std = V4L2_STD_SECAM;
3691                         break;
3692                 }
3693
3694                 return 0;
3695         }
3696                 break;
3697
3698         case VIDIOC_S_STD:
3699         {
3700                 int norm = -1, res = 0;
3701                 v4l2_std_id *std = arg;
3702
3703                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3704                         ZR_DEVNAME(zr), (unsigned long long)*std);
3705
3706                 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3707                         norm = VIDEO_MODE_PAL;
3708                 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3709                         norm = VIDEO_MODE_NTSC;
3710                 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3711                         norm = VIDEO_MODE_SECAM;
3712                 else if (*std == V4L2_STD_ALL)
3713                         norm = VIDEO_MODE_AUTO;
3714                 else {
3715                         dprintk(1,
3716                                 KERN_ERR
3717                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3718                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3719                         return -EINVAL;
3720                 }
3721
3722                 mutex_lock(&zr->resource_lock);
3723                 if ((res = zoran_set_norm(zr, norm)))
3724                         goto sstd_unlock_and_return;
3725
3726                 res = wait_grab_pending(zr);
3727         sstd_unlock_and_return:
3728                 mutex_unlock(&zr->resource_lock);
3729                 return res;
3730         }
3731                 break;
3732
3733         case VIDIOC_ENUMINPUT:
3734         {
3735                 struct v4l2_input *inp = arg;
3736                 int status;
3737
3738                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3739                         ZR_DEVNAME(zr), inp->index);
3740
3741                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3742                         return -EINVAL;
3743                 else {
3744                         int id = inp->index;
3745                         memset(inp, 0, sizeof(*inp));
3746                         inp->index = id;
3747                 }
3748
3749                 strncpy(inp->name, zr->card.input[inp->index].name,
3750                         sizeof(inp->name) - 1);
3751                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3752                 inp->std = V4L2_STD_ALL;
3753
3754                 /* Get status of video decoder */
3755                 mutex_lock(&zr->resource_lock);
3756                 decoder_command(zr, DECODER_GET_STATUS, &status);
3757                 mutex_unlock(&zr->resource_lock);
3758
3759                 if (!(status & DECODER_STATUS_GOOD)) {
3760                         inp->status |= V4L2_IN_ST_NO_POWER;
3761                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3762                 }
3763                 if (!(status & DECODER_STATUS_COLOR))
3764                         inp->status |= V4L2_IN_ST_NO_COLOR;
3765
3766                 return 0;
3767         }
3768                 break;
3769
3770         case VIDIOC_G_INPUT:
3771         {
3772                 int *input = arg;
3773
3774                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3775
3776                 mutex_lock(&zr->resource_lock);
3777                 *input = zr->input;
3778                 mutex_unlock(&zr->resource_lock);
3779
3780                 return 0;
3781         }
3782                 break;
3783
3784         case VIDIOC_S_INPUT:
3785         {
3786                 int *input = arg, res = 0;
3787
3788                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3789                         ZR_DEVNAME(zr), *input);
3790
3791                 mutex_lock(&zr->resource_lock);
3792                 if ((res = zoran_set_input(zr, *input)))
3793                         goto sinput_unlock_and_return;
3794
3795                 /* Make sure the changes come into effect */
3796                 res = wait_grab_pending(zr);
3797         sinput_unlock_and_return:
3798                 mutex_unlock(&zr->resource_lock);
3799                 return res;
3800         }
3801                 break;
3802
3803         case VIDIOC_ENUMOUTPUT:
3804         {
3805                 struct v4l2_output *outp = arg;
3806
3807                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3808                         ZR_DEVNAME(zr), outp->index);
3809
3810                 if (outp->index != 0)
3811                         return -EINVAL;
3812
3813                 memset(outp, 0, sizeof(*outp));
3814                 outp->index = 0;
3815                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3816                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3817
3818                 return 0;
3819         }
3820                 break;
3821
3822         case VIDIOC_G_OUTPUT:
3823         {
3824                 int *output = arg;
3825
3826                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3827
3828                 *output = 0;
3829
3830                 return 0;
3831         }
3832                 break;
3833
3834         case VIDIOC_S_OUTPUT:
3835         {
3836                 int *output = arg;
3837
3838                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3839                         ZR_DEVNAME(zr), *output);
3840
3841                 if (*output != 0)
3842                         return -EINVAL;
3843
3844                 return 0;
3845         }
3846                 break;
3847
3848                 /* cropping (sub-frame capture) */
3849         case VIDIOC_CROPCAP:
3850         {
3851                 struct v4l2_cropcap *cropcap = arg;
3852                 int type = cropcap->type, res = 0;
3853
3854                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3855                         ZR_DEVNAME(zr), cropcap->type);
3856
3857                 memset(cropcap, 0, sizeof(*cropcap));
3858                 cropcap->type = type;
3859
3860                 mutex_lock(&zr->resource_lock);
3861
3862                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3863                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3864                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3865                         dprintk(1,
3866                                 KERN_ERR
3867                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3868                                 ZR_DEVNAME(zr));
3869                         res = -EINVAL;
3870                         goto cropcap_unlock_and_return;
3871                 }
3872
3873                 cropcap->bounds.top = cropcap->bounds.left = 0;
3874                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3875                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3876                 cropcap->defrect.top = cropcap->defrect.left = 0;
3877                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3878                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3879         cropcap_unlock_and_return:
3880                 mutex_unlock(&zr->resource_lock);
3881                 return res;
3882         }
3883                 break;
3884
3885         case VIDIOC_G_CROP:
3886         {
3887                 struct v4l2_crop *crop = arg;
3888                 int type = crop->type, res = 0;
3889
3890                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3891                         ZR_DEVNAME(zr), crop->type);
3892
3893                 memset(crop, 0, sizeof(*crop));
3894                 crop->type = type;
3895
3896                 mutex_lock(&zr->resource_lock);
3897
3898                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3899                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3900                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3901                         dprintk(1,
3902                                 KERN_ERR
3903                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3904                                 ZR_DEVNAME(zr));
3905                         res = -EINVAL;
3906                         goto gcrop_unlock_and_return;
3907                 }
3908
3909                 crop->c.top = fh->jpg_settings.img_y;
3910                 crop->c.left = fh->jpg_settings.img_x;
3911                 crop->c.width = fh->jpg_settings.img_width;
3912                 crop->c.height = fh->jpg_settings.img_height;
3913
3914         gcrop_unlock_and_return:
3915                 mutex_unlock(&zr->resource_lock);
3916
3917                 return res;
3918         }
3919                 break;
3920
3921         case VIDIOC_S_CROP:
3922         {
3923                 struct v4l2_crop *crop = arg;
3924                 int res = 0;
3925
3926                 settings = fh->jpg_settings;
3927
3928                 dprintk(3,
3929                         KERN_ERR
3930                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3931                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3932                         crop->c.width, crop->c.height);
3933
3934                 mutex_lock(&zr->resource_lock);
3935
3936                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3937                         dprintk(1,
3938                                 KERN_ERR
3939                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3940                                 ZR_DEVNAME(zr));
3941                         res = -EBUSY;
3942                         goto scrop_unlock_and_return;
3943                 }
3944
3945                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3946                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3947                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3948                         dprintk(1,
3949                                 KERN_ERR
3950                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3951                                 ZR_DEVNAME(zr));
3952                         res = -EINVAL;
3953                         goto scrop_unlock_and_return;
3954                 }
3955
3956                 /* move into a form that we understand */
3957                 settings.img_x = crop->c.left;
3958                 settings.img_y = crop->c.top;
3959                 settings.img_width = crop->c.width;
3960                 settings.img_height = crop->c.height;
3961
3962                 /* check validity */
3963                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3964                         goto scrop_unlock_and_return;
3965
3966                 /* accept */
3967                 fh->jpg_settings = settings;
3968
3969         scrop_unlock_and_return:
3970                 mutex_unlock(&zr->resource_lock);
3971                 return res;
3972         }
3973                 break;
3974
3975         case VIDIOC_G_JPEGCOMP:
3976         {
3977                 struct v4l2_jpegcompression *params = arg;
3978
3979                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3980                         ZR_DEVNAME(zr));
3981
3982                 memset(params, 0, sizeof(*params));
3983
3984                 mutex_lock(&zr->resource_lock);
3985
3986                 params->quality = fh->jpg_settings.jpg_comp.quality;
3987                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3988                 memcpy(params->APP_data,
3989                        fh->jpg_settings.jpg_comp.APP_data,
3990                        fh->jpg_settings.jpg_comp.APP_len);
3991                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3992                 memcpy(params->COM_data,
3993                        fh->jpg_settings.jpg_comp.COM_data,
3994                        fh->jpg_settings.jpg_comp.COM_len);
3995                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3996                 params->jpeg_markers =
3997                     fh->jpg_settings.jpg_comp.jpeg_markers;
3998
3999                 mutex_unlock(&zr->resource_lock);
4000
4001                 return 0;
4002         }
4003                 break;
4004
4005         case VIDIOC_S_JPEGCOMP:
4006         {
4007                 struct v4l2_jpegcompression *params = arg;
4008                 int res = 0;
4009
4010                 settings = fh->jpg_settings;
4011
4012                 dprintk(3,
4013                         KERN_DEBUG
4014                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4015                         ZR_DEVNAME(zr), params->quality, params->APPn,
4016                         params->APP_len, params->COM_len);
4017
4018                 settings.jpg_comp = *params;
4019
4020                 mutex_lock(&zr->resource_lock);
4021
4022                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4023                     fh->jpg_buffers.active != ZORAN_FREE) {
4024                         dprintk(1,
4025                                 KERN_WARNING
4026                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4027                                 ZR_DEVNAME(zr));
4028                         res = -EBUSY;
4029                         goto sjpegc_unlock_and_return;
4030                 }
4031
4032                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4033                         goto sjpegc_unlock_and_return;
4034                 if (!fh->jpg_buffers.allocated)
4035                         fh->jpg_buffers.buffer_size =
4036                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4037                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4038         sjpegc_unlock_and_return:
4039                 mutex_unlock(&zr->resource_lock);
4040
4041                 return 0;
4042         }
4043                 break;
4044
4045         case VIDIOC_QUERYSTD:   /* why is this useful? */
4046         {
4047                 v4l2_std_id *std = arg;
4048
4049                 dprintk(3,
4050                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4051                         ZR_DEVNAME(zr), (unsigned long long)*std);
4052
4053                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4054                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4055                                              zr->card.norms == 3)) {
4056                         return 0;
4057                 }
4058
4059                 return -EINVAL;
4060         }
4061                 break;
4062
4063         case VIDIOC_TRY_FMT:
4064         {
4065                 struct v4l2_format *fmt = arg;
4066                 int res = 0;
4067
4068                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4069                         ZR_DEVNAME(zr), fmt->type);
4070
4071                 switch (fmt->type) {
4072                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4073                         mutex_lock(&zr->resource_lock);
4074
4075                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4076                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4077                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4078                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4079                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4080                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4081                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4082                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4083
4084                         mutex_unlock(&zr->resource_lock);
4085                         break;
4086
4087                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4088                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4089                         if (fmt->fmt.pix.bytesperline > 0)
4090                                 return -EINVAL;
4091
4092                         mutex_lock(&zr->resource_lock);
4093
4094                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4095                                 settings = fh->jpg_settings;
4096
4097                                 /* we actually need to set 'real' parameters now */
4098                                 if ((fmt->fmt.pix.height * 2) >
4099                                     BUZ_MAX_HEIGHT)
4100                                         settings.TmpDcm = 1;
4101                                 else
4102                                         settings.TmpDcm = 2;
4103                                 settings.decimation = 0;
4104                                 if (fmt->fmt.pix.height <=
4105                                     fh->jpg_settings.img_height / 2)
4106                                         settings.VerDcm = 2;
4107                                 else
4108                                         settings.VerDcm = 1;
4109                                 if (fmt->fmt.pix.width <=
4110                                     fh->jpg_settings.img_width / 4)
4111                                         settings.HorDcm = 4;
4112                                 else if (fmt->fmt.pix.width <=
4113                                          fh->jpg_settings.img_width / 2)
4114                                         settings.HorDcm = 2;
4115                                 else
4116                                         settings.HorDcm = 1;
4117                                 if (settings.TmpDcm == 1)
4118                                         settings.field_per_buff = 2;
4119                                 else
4120                                         settings.field_per_buff = 1;
4121
4122                                 /* check */
4123                                 if ((res =
4124                                      zoran_check_jpg_settings(zr,
4125                                                               &settings)))
4126                                         goto tryfmt_unlock_and_return;
4127
4128                                 /* tell the user what we actually did */
4129                                 fmt->fmt.pix.width =
4130                                     settings.img_width / settings.HorDcm;
4131                                 fmt->fmt.pix.height =
4132                                     settings.img_height * 2 /
4133                                     (settings.TmpDcm * settings.VerDcm);
4134                                 if (settings.TmpDcm == 1)
4135                                         fmt->fmt.pix.field =
4136                                             (fh->jpg_settings.
4137                                              odd_even ? V4L2_FIELD_SEQ_TB :
4138                                              V4L2_FIELD_SEQ_BT);
4139                                 else
4140                                         fmt->fmt.pix.field =
4141                                             (fh->jpg_settings.
4142                                              odd_even ? V4L2_FIELD_TOP :
4143                                              V4L2_FIELD_BOTTOM);
4144
4145                                 fmt->fmt.pix.sizeimage =
4146                                     zoran_v4l2_calc_bufsize(&settings);
4147                         } else if (fmt->type ==
4148                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4149                                 int i;
4150
4151                                 for (i = 0; i < NUM_FORMATS; i++)
4152                                         if (zoran_formats[i].fourcc ==
4153                                             fmt->fmt.pix.pixelformat)
4154                                                 break;
4155                                 if (i == NUM_FORMATS) {
4156                                         res = -EINVAL;
4157                                         goto tryfmt_unlock_and_return;
4158                                 }
4159
4160                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4161                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4162                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4163                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4164                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4165                                         fmt->fmt.pix.height =
4166                                             BUZ_MAX_HEIGHT;
4167                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4168                                         fmt->fmt.pix.height =
4169                                             BUZ_MIN_HEIGHT;
4170                         } else {
4171                                 res = -EINVAL;
4172                                 goto tryfmt_unlock_and_return;
4173                         }
4174                 tryfmt_unlock_and_return:
4175                         mutex_unlock(&zr->resource_lock);
4176
4177                         return res;
4178                         break;
4179
4180                 default:
4181                         return -EINVAL;
4182                 }
4183
4184                 return 0;
4185         }
4186                 break;
4187
4188         default:
4189                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4190                         ZR_DEVNAME(zr), cmd);
4191                 return -ENOIOCTLCMD;
4192                 break;
4193
4194         }
4195         return 0;
4196 }
4197
4198
4199 static int
4200 zoran_ioctl (struct inode *inode,
4201              struct file  *file,
4202              unsigned int  cmd,
4203              unsigned long arg)
4204 {
4205         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4206 }
4207
4208 static unsigned int
4209 zoran_poll (struct file *file,
4210             poll_table  *wait)
4211 {
4212         struct zoran_fh *fh = file->private_data;
4213         struct zoran *zr = fh->zr;
4214         int res = 0, frame;
4215         unsigned long flags;
4216
4217         /* we should check whether buffers are ready to be synced on
4218          * (w/o waits - O_NONBLOCK) here
4219          * if ready for read (sync), return POLLIN|POLLRDNORM,
4220          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4221          * if error, return POLLERR,
4222          * if no buffers queued or so, return POLLNVAL
4223          */
4224
4225         mutex_lock(&zr->resource_lock);
4226
4227         switch (fh->map_mode) {
4228         case ZORAN_MAP_MODE_RAW:
4229                 poll_wait(file, &zr->v4l_capq, wait);
4230                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4231
4232                 spin_lock_irqsave(&zr->spinlock, flags);
4233                 dprintk(3,
4234                         KERN_DEBUG
4235                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4236                         ZR_DEVNAME(zr), __func__,
4237                         "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4238                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
4239                         zr->v4l_pend_tail, zr->v4l_pend_head);
4240                 /* Process is the one capturing? */
4241                 if (fh->v4l_buffers.active != ZORAN_FREE &&
4242                     /* Buffer ready to DQBUF? */
4243                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4244                         res = POLLIN | POLLRDNORM;
4245                 spin_unlock_irqrestore(&zr->spinlock, flags);
4246
4247                 break;
4248
4249         case ZORAN_MAP_MODE_JPG_REC:
4250         case ZORAN_MAP_MODE_JPG_PLAY:
4251                 poll_wait(file, &zr->jpg_capq, wait);
4252                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4253
4254                 spin_lock_irqsave(&zr->spinlock, flags);
4255                 dprintk(3,
4256                         KERN_DEBUG
4257                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4258                         ZR_DEVNAME(zr), __func__,
4259                         "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4260                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
4261                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4262                 if (fh->jpg_buffers.active != ZORAN_FREE &&
4263                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4264                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4265                                 res = POLLIN | POLLRDNORM;
4266                         else
4267                                 res = POLLOUT | POLLWRNORM;
4268                 }
4269                 spin_unlock_irqrestore(&zr->spinlock, flags);
4270
4271                 break;
4272
4273         default:
4274                 dprintk(1,
4275                         KERN_ERR
4276                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4277                         ZR_DEVNAME(zr), fh->map_mode);
4278                 res = POLLNVAL;
4279         }
4280
4281         mutex_unlock(&zr->resource_lock);
4282
4283         return res;
4284 }
4285
4286
4287 /*
4288  * This maps the buffers to user space.
4289  *
4290  * Depending on the state of fh->map_mode
4291  * the V4L or the MJPEG buffers are mapped
4292  * per buffer or all together
4293  *
4294  * Note that we need to connect to some
4295  * unmap signal event to unmap the de-allocate
4296  * the buffer accordingly (zoran_vm_close())
4297  */
4298
4299 static void
4300 zoran_vm_open (struct vm_area_struct *vma)
4301 {
4302         struct zoran_mapping *map = vma->vm_private_data;
4303
4304         map->count++;
4305 }
4306
4307 static void
4308 zoran_vm_close (struct vm_area_struct *vma)
4309 {
4310         struct zoran_mapping *map = vma->vm_private_data;
4311         struct file *file = map->file;
4312         struct zoran_fh *fh = file->private_data;
4313         struct zoran *zr = fh->zr;
4314         int i;
4315
4316         map->count--;
4317         if (map->count == 0) {
4318                 switch (fh->map_mode) {
4319                 case ZORAN_MAP_MODE_JPG_REC:
4320                 case ZORAN_MAP_MODE_JPG_PLAY:
4321
4322                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4323                                 ZR_DEVNAME(zr));
4324
4325                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4326                                 if (fh->jpg_buffers.buffer[i].map == map) {
4327                                         fh->jpg_buffers.buffer[i].map =
4328                                             NULL;
4329                                 }
4330                         }
4331                         kfree(map);
4332
4333                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4334                                 if (fh->jpg_buffers.buffer[i].map)
4335                                         break;
4336                         if (i == fh->jpg_buffers.num_buffers) {
4337                                 mutex_lock(&zr->resource_lock);
4338
4339                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4340                                         jpg_qbuf(file, -1, zr->codec_mode);
4341                                         zr->jpg_buffers.allocated = 0;
4342                                         zr->jpg_buffers.active =
4343                                             fh->jpg_buffers.active =
4344                                             ZORAN_FREE;
4345                                 }
4346                                 //jpg_fbuffer_free(file);
4347                                 fh->jpg_buffers.allocated = 0;
4348                                 fh->jpg_buffers.ready_to_be_freed = 1;
4349
4350                                 mutex_unlock(&zr->resource_lock);
4351                         }
4352
4353                         break;
4354
4355                 case ZORAN_MAP_MODE_RAW:
4356
4357                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4358                                 ZR_DEVNAME(zr));
4359
4360                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4361                                 if (fh->v4l_buffers.buffer[i].map == map) {
4362                                         /* unqueue/unmap */
4363                                         fh->v4l_buffers.buffer[i].map =
4364                                             NULL;
4365                                 }
4366                         }
4367                         kfree(map);
4368
4369                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4370                                 if (fh->v4l_buffers.buffer[i].map)
4371                                         break;
4372                         if (i == fh->v4l_buffers.num_buffers) {
4373                                 mutex_lock(&zr->resource_lock);
4374
4375                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4376                                         unsigned long flags;
4377
4378                                         spin_lock_irqsave(&zr->spinlock, flags);
4379                                         zr36057_set_memgrab(zr, 0);
4380                                         zr->v4l_buffers.allocated = 0;
4381                                         zr->v4l_buffers.active =
4382                                             fh->v4l_buffers.active =
4383                                             ZORAN_FREE;
4384                                         spin_unlock_irqrestore(&zr->spinlock, flags);
4385                                 }
4386                                 //v4l_fbuffer_free(file);
4387                                 fh->v4l_buffers.allocated = 0;
4388                                 fh->v4l_buffers.ready_to_be_freed = 1;
4389
4390                                 mutex_unlock(&zr->resource_lock);
4391                         }
4392
4393                         break;
4394
4395                 default:
4396                         printk(KERN_ERR
4397                                "%s: munmap() - internal error - unknown map mode %d\n",
4398                                ZR_DEVNAME(zr), fh->map_mode);
4399                         break;
4400
4401                 }
4402         }
4403 }
4404
4405 static struct vm_operations_struct zoran_vm_ops = {
4406         .open = zoran_vm_open,
4407         .close = zoran_vm_close,
4408 };
4409
4410 static int
4411 zoran_mmap (struct file           *file,
4412             struct vm_area_struct *vma)
4413 {
4414         struct zoran_fh *fh = file->private_data;
4415         struct zoran *zr = fh->zr;
4416         unsigned long size = (vma->vm_end - vma->vm_start);
4417         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4418         int i, j;
4419         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4420         int first, last;
4421         struct zoran_mapping *map;
4422         int res = 0;
4423
4424         dprintk(3,
4425                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4426                 ZR_DEVNAME(zr),
4427                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4428                 vma->vm_start, vma->vm_end, size);
4429
4430         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4431             !(vma->vm_flags & VM_WRITE)) {
4432                 dprintk(1,
4433                         KERN_ERR
4434                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4435                         ZR_DEVNAME(zr));
4436                 return -EINVAL;
4437         }
4438
4439         switch (fh->map_mode) {
4440
4441         case ZORAN_MAP_MODE_JPG_REC:
4442         case ZORAN_MAP_MODE_JPG_PLAY:
4443
4444                 /* lock */
4445                 mutex_lock(&zr->resource_lock);
4446
4447                 /* Map the MJPEG buffers */
4448                 if (!fh->jpg_buffers.allocated) {
4449                         dprintk(1,
4450                                 KERN_ERR
4451                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4452                                 ZR_DEVNAME(zr));
4453                         res = -ENOMEM;
4454                         goto jpg_mmap_unlock_and_return;
4455                 }
4456
4457                 first = offset / fh->jpg_buffers.buffer_size;
4458                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4459                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4460                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4461                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4462                     last >= fh->jpg_buffers.num_buffers) {
4463                         dprintk(1,
4464                                 KERN_ERR
4465                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4466                                 ZR_DEVNAME(zr), offset, size,
4467                                 fh->jpg_buffers.buffer_size,
4468                                 fh->jpg_buffers.num_buffers);
4469                         res = -EINVAL;
4470                         goto jpg_mmap_unlock_and_return;
4471                 }
4472                 for (i = first; i <= last; i++) {
4473                         if (fh->jpg_buffers.buffer[i].map) {
4474                                 dprintk(1,
4475                                         KERN_ERR
4476                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4477                                         ZR_DEVNAME(zr), i);
4478                                 res = -EBUSY;
4479                                 goto jpg_mmap_unlock_and_return;
4480                         }
4481                 }
4482
4483                 /* map these buffers (v4l_buffers[i]) */
4484                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4485                 if (!map) {
4486                         res = -ENOMEM;
4487                         goto jpg_mmap_unlock_and_return;
4488                 }
4489                 map->file = file;
4490                 map->count = 1;
4491
4492                 vma->vm_ops = &zoran_vm_ops;
4493                 vma->vm_flags |= VM_DONTEXPAND;
4494                 vma->vm_private_data = map;
4495
4496                 for (i = first; i <= last; i++) {
4497                         for (j = 0;
4498                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4499                              j++) {
4500                                 fraglen =
4501                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4502                                      frag_tab[2 * j + 1]) & ~1) << 1;
4503                                 todo = size;
4504                                 if (todo > fraglen)
4505                                         todo = fraglen;
4506                                 pos =
4507                                     le32_to_cpu(fh->jpg_buffers.
4508                                     buffer[i].frag_tab[2 * j]);
4509                                 /* should just be pos on i386 */
4510                                 page = virt_to_phys(bus_to_virt(pos))
4511                                                                 >> PAGE_SHIFT;
4512                                 if (remap_pfn_range(vma, start, page,
4513                                                         todo, PAGE_SHARED)) {
4514                                         dprintk(1,
4515                                                 KERN_ERR
4516                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4517                                                 ZR_DEVNAME(zr));
4518                                         res = -EAGAIN;
4519                                         goto jpg_mmap_unlock_and_return;
4520                                 }
4521                                 size -= todo;
4522                                 start += todo;
4523                                 if (size == 0)
4524                                         break;
4525                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4526                                     frag_tab[2 * j + 1]) & 1)
4527                                         break;  /* was last fragment */
4528                         }
4529                         fh->jpg_buffers.buffer[i].map = map;
4530                         if (size == 0)
4531                                 break;
4532
4533                 }
4534         jpg_mmap_unlock_and_return:
4535                 mutex_unlock(&zr->resource_lock);
4536
4537                 break;
4538
4539         case ZORAN_MAP_MODE_RAW:
4540
4541                 mutex_lock(&zr->resource_lock);
4542
4543                 /* Map the V4L buffers */
4544                 if (!fh->v4l_buffers.allocated) {
4545                         dprintk(1,
4546                                 KERN_ERR
4547                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4548                                 ZR_DEVNAME(zr));
4549                         res = -ENOMEM;
4550                         goto v4l_mmap_unlock_and_return;
4551                 }
4552
4553                 first = offset / fh->v4l_buffers.buffer_size;
4554                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4555                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4556                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4557                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4558                     last >= fh->v4l_buffers.buffer_size) {
4559                         dprintk(1,
4560                                 KERN_ERR
4561                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4562                                 ZR_DEVNAME(zr), offset, size,
4563                                 fh->v4l_buffers.buffer_size,
4564                                 fh->v4l_buffers.num_buffers);
4565                         res = -EINVAL;
4566                         goto v4l_mmap_unlock_and_return;
4567                 }
4568                 for (i = first; i <= last; i++) {
4569                         if (fh->v4l_buffers.buffer[i].map) {
4570                                 dprintk(1,
4571                                         KERN_ERR
4572                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4573                                         ZR_DEVNAME(zr), i);
4574                                 res = -EBUSY;
4575                                 goto v4l_mmap_unlock_and_return;
4576                         }
4577                 }
4578
4579                 /* map these buffers (v4l_buffers[i]) */
4580                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4581                 if (!map) {
4582                         res = -ENOMEM;
4583                         goto v4l_mmap_unlock_and_return;
4584                 }
4585                 map->file = file;
4586                 map->count = 1;
4587
4588                 vma->vm_ops = &zoran_vm_ops;
4589                 vma->vm_flags |= VM_DONTEXPAND;
4590                 vma->vm_private_data = map;
4591
4592                 for (i = first; i <= last; i++) {
4593                         todo = size;
4594                         if (todo > fh->v4l_buffers.buffer_size)
4595                                 todo = fh->v4l_buffers.buffer_size;
4596                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4597                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4598                                                         todo, PAGE_SHARED)) {
4599                                 dprintk(1,
4600                                         KERN_ERR
4601                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4602                                         ZR_DEVNAME(zr));
4603                                 res = -EAGAIN;
4604                                 goto v4l_mmap_unlock_and_return;
4605                         }
4606                         size -= todo;
4607                         start += todo;
4608                         fh->v4l_buffers.buffer[i].map = map;
4609                         if (size == 0)
4610                                 break;
4611                 }
4612         v4l_mmap_unlock_and_return:
4613                 mutex_unlock(&zr->resource_lock);
4614
4615                 break;
4616
4617         default:
4618                 dprintk(1,
4619                         KERN_ERR
4620                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4621                         ZR_DEVNAME(zr), fh->map_mode);
4622                 break;
4623         }
4624
4625         return 0;
4626 }
4627
4628 static const struct file_operations zoran_fops = {
4629         .owner = THIS_MODULE,
4630         .open = zoran_open,
4631         .release = zoran_close,
4632         .ioctl = zoran_ioctl,
4633 #ifdef CONFIG_COMPAT
4634         .compat_ioctl   = v4l_compat_ioctl32,
4635 #endif
4636         .llseek = no_llseek,
4637         .read = zoran_read,
4638         .write = zoran_write,
4639         .mmap = zoran_mmap,
4640         .poll = zoran_poll,
4641 };
4642
4643 struct video_device zoran_template __devinitdata = {
4644         .name = ZORAN_NAME,
4645         .fops = &zoran_fops,
4646         .release = &zoran_vdev_release,
4647         .minor = -1
4648 };
4649