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
2921                                 /* we hereby abuse this variable to show that
2922                                  * we're gonna do mjpeg capture */
2923                                 fh->map_mode =
2924                                     (fmt->type ==
2925                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2926                                     ZORAN_MAP_MODE_JPG_REC :
2927                                     ZORAN_MAP_MODE_JPG_PLAY;
2928                         sfmtjpg_unlock_and_return:
2929                                 mutex_unlock(&zr->resource_lock);
2930                         } else {
2931                                 for (i = 0; i < NUM_FORMATS; i++)
2932                                         if (fmt->fmt.pix.pixelformat ==
2933                                             zoran_formats[i].fourcc)
2934                                                 break;
2935                                 if (i == NUM_FORMATS) {
2936                                         dprintk(1,
2937                                                 KERN_ERR
2938                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2939                                                 ZR_DEVNAME(zr),
2940                                                 fmt->fmt.pix.pixelformat,
2941                                                 (char *) &printformat);
2942                                         return -EINVAL;
2943                                 }
2944                                 mutex_lock(&zr->resource_lock);
2945                                 if (fh->jpg_buffers.allocated ||
2946                                     (fh->v4l_buffers.allocated &&
2947                                      fh->v4l_buffers.active !=
2948                                      ZORAN_FREE)) {
2949                                         dprintk(1,
2950                                                 KERN_ERR
2951                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2952                                                 ZR_DEVNAME(zr));
2953                                         res = -EBUSY;
2954                                         goto sfmtv4l_unlock_and_return;
2955                                 }
2956                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2957                                         fmt->fmt.pix.height =
2958                                             BUZ_MAX_HEIGHT;
2959                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2960                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2961
2962                                 if ((res =
2963                                      zoran_v4l_set_format(file,
2964                                                           fmt->fmt.pix.
2965                                                           width,
2966                                                           fmt->fmt.pix.
2967                                                           height,
2968                                                           &zoran_formats
2969                                                           [i])))
2970                                         goto sfmtv4l_unlock_and_return;
2971
2972                                 /* tell the user the
2973                                  * results/missing stuff */
2974                                 fmt->fmt.pix.bytesperline =
2975                                         fh->v4l_settings.bytesperline;
2976                                 fmt->fmt.pix.sizeimage =
2977                                         fh->v4l_settings.height *
2978                                         fh->v4l_settings.bytesperline;
2979                                 if (BUZ_MAX_HEIGHT <
2980                                     (fh->v4l_settings.height * 2))
2981                                         fmt->fmt.pix.field =
2982                                             V4L2_FIELD_INTERLACED;
2983                                 else
2984                                         fmt->fmt.pix.field =
2985                                             V4L2_FIELD_TOP;
2986
2987                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2988                         sfmtv4l_unlock_and_return:
2989                                 mutex_unlock(&zr->resource_lock);
2990                         }
2991
2992                         break;
2993
2994                 default:
2995                         dprintk(3, "unsupported\n");
2996                         dprintk(1,
2997                                 KERN_ERR
2998                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
2999                                 ZR_DEVNAME(zr), fmt->type);
3000                         return -EINVAL;
3001                 }
3002
3003                 return res;
3004         }
3005                 break;
3006
3007         case VIDIOC_G_FBUF:
3008         {
3009                 struct v4l2_framebuffer *fb = arg;
3010
3011                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3012
3013                 memset(fb, 0, sizeof(*fb));
3014                 mutex_lock(&zr->resource_lock);
3015                 fb->base = zr->buffer.base;
3016                 fb->fmt.width = zr->buffer.width;
3017                 fb->fmt.height = zr->buffer.height;
3018                 if (zr->overlay_settings.format) {
3019                         fb->fmt.pixelformat =
3020                                 fh->overlay_settings.format->fourcc;
3021                 }
3022                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3023                 mutex_unlock(&zr->resource_lock);
3024                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3025                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3026                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3027                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3028
3029                 return 0;
3030         }
3031                 break;
3032
3033         case VIDIOC_S_FBUF:
3034         {
3035                 int i, res = 0;
3036                 struct v4l2_framebuffer *fb = arg;
3037                 __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3038
3039                 dprintk(3,
3040                         KERN_DEBUG
3041                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3042                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3043                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3044                         (char *) &printformat);
3045
3046                 for (i = 0; i < NUM_FORMATS; i++)
3047                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3048                                 break;
3049                 if (i == NUM_FORMATS) {
3050                         dprintk(1,
3051                                 KERN_ERR
3052                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3053                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3054                                 (char *) &printformat);
3055                         return -EINVAL;
3056                 }
3057
3058                 mutex_lock(&zr->resource_lock);
3059                 res =
3060                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3061                                   fb->fmt.width, fb->fmt.height,
3062                                   fb->fmt.bytesperline);
3063                 mutex_unlock(&zr->resource_lock);
3064
3065                 return res;
3066         }
3067                 break;
3068
3069         case VIDIOC_OVERLAY:
3070         {
3071                 int *on = arg, res;
3072
3073                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3074                         ZR_DEVNAME(zr), *on);
3075
3076                 mutex_lock(&zr->resource_lock);
3077                 res = setup_overlay(file, *on);
3078                 mutex_unlock(&zr->resource_lock);
3079
3080                 return res;
3081         }
3082                 break;
3083
3084         case VIDIOC_REQBUFS:
3085         {
3086                 struct v4l2_requestbuffers *req = arg;
3087                 int res = 0;
3088
3089                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3090                         ZR_DEVNAME(zr), req->type);
3091
3092                 if (req->memory != V4L2_MEMORY_MMAP) {
3093                         dprintk(1,
3094                                 KERN_ERR
3095                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3096                                 ZR_DEVNAME(zr), req->memory);
3097                         return -EINVAL;
3098                 }
3099
3100                 mutex_lock(&zr->resource_lock);
3101
3102                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3103                         dprintk(1,
3104                                 KERN_ERR
3105                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3106                                 ZR_DEVNAME(zr));
3107                         res = -EBUSY;
3108                         goto v4l2reqbuf_unlock_and_return;
3109                 }
3110
3111                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3112                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3113
3114                         /* control user input */
3115                         if (req->count < 2)
3116                                 req->count = 2;
3117                         if (req->count > v4l_nbufs)
3118                                 req->count = v4l_nbufs;
3119                         fh->v4l_buffers.num_buffers = req->count;
3120
3121                         if (v4l_fbuffer_alloc(file)) {
3122                                 res = -ENOMEM;
3123                                 goto v4l2reqbuf_unlock_and_return;
3124                         }
3125
3126                         /* The next mmap will map the V4L buffers */
3127                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3128
3129                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3130                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3131
3132                         /* we need to calculate size ourselves now */
3133                         if (req->count < 4)
3134                                 req->count = 4;
3135                         if (req->count > jpg_nbufs)
3136                                 req->count = jpg_nbufs;
3137                         fh->jpg_buffers.num_buffers = req->count;
3138                         fh->jpg_buffers.buffer_size =
3139                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3140
3141                         if (jpg_fbuffer_alloc(file)) {
3142                                 res = -ENOMEM;
3143                                 goto v4l2reqbuf_unlock_and_return;
3144                         }
3145
3146                         /* The next mmap will map the MJPEG buffers */
3147                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3148                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3149                         else
3150                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3151
3152                 } else {
3153                         dprintk(1,
3154                                 KERN_ERR
3155                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3156                                 ZR_DEVNAME(zr), req->type);
3157                         res = -EINVAL;
3158                         goto v4l2reqbuf_unlock_and_return;
3159                 }
3160         v4l2reqbuf_unlock_and_return:
3161                 mutex_unlock(&zr->resource_lock);
3162
3163                 return 0;
3164         }
3165                 break;
3166
3167         case VIDIOC_QUERYBUF:
3168         {
3169                 struct v4l2_buffer *buf = arg;
3170                 __u32 type = buf->type;
3171                 int index = buf->index, res;
3172
3173                 dprintk(3,
3174                         KERN_DEBUG
3175                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3176                         ZR_DEVNAME(zr), buf->index, buf->type);
3177
3178                 memset(buf, 0, sizeof(*buf));
3179                 buf->type = type;
3180                 buf->index = index;
3181
3182                 mutex_lock(&zr->resource_lock);
3183                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3184                 mutex_unlock(&zr->resource_lock);
3185
3186                 return res;
3187         }
3188                 break;
3189
3190         case VIDIOC_QBUF:
3191         {
3192                 struct v4l2_buffer *buf = arg;
3193                 int res = 0, codec_mode, buf_type;
3194
3195                 dprintk(3,
3196                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3197                         ZR_DEVNAME(zr), buf->type, buf->index);
3198
3199                 mutex_lock(&zr->resource_lock);
3200
3201                 switch (fh->map_mode) {
3202                 case ZORAN_MAP_MODE_RAW:
3203                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3204                                 dprintk(1,
3205                                         KERN_ERR
3206                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3207                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3208                                 res = -EINVAL;
3209                                 goto qbuf_unlock_and_return;
3210                         }
3211
3212                         res = zoran_v4l_queue_frame(file, buf->index);
3213                         if (res)
3214                                 goto qbuf_unlock_and_return;
3215                         if (!zr->v4l_memgrab_active &&
3216                             fh->v4l_buffers.active == ZORAN_LOCKED)
3217                                 zr36057_set_memgrab(zr, 1);
3218                         break;
3219
3220                 case ZORAN_MAP_MODE_JPG_REC:
3221                 case ZORAN_MAP_MODE_JPG_PLAY:
3222                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3223                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3224                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3225                         } else {
3226                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3227                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3228                         }
3229
3230                         if (buf->type != buf_type) {
3231                                 dprintk(1,
3232                                         KERN_ERR
3233                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3234                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3235                                 res = -EINVAL;
3236                                 goto qbuf_unlock_and_return;
3237                         }
3238
3239                         res =
3240                             zoran_jpg_queue_frame(file, buf->index,
3241                                                   codec_mode);
3242                         if (res != 0)
3243                                 goto qbuf_unlock_and_return;
3244                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3245                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3246                                 zr36057_enable_jpg(zr, codec_mode);
3247                         }
3248                         break;
3249
3250                 default:
3251                         dprintk(1,
3252                                 KERN_ERR
3253                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3254                                 ZR_DEVNAME(zr), buf->type);
3255                         res = -EINVAL;
3256                         goto qbuf_unlock_and_return;
3257                 }
3258         qbuf_unlock_and_return:
3259                 mutex_unlock(&zr->resource_lock);
3260
3261                 return res;
3262         }
3263                 break;
3264
3265         case VIDIOC_DQBUF:
3266         {
3267                 struct v4l2_buffer *buf = arg;
3268                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3269
3270                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3271                         ZR_DEVNAME(zr), buf->type);
3272
3273                 mutex_lock(&zr->resource_lock);
3274
3275                 switch (fh->map_mode) {
3276                 case ZORAN_MAP_MODE_RAW:
3277                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3278                                 dprintk(1,
3279                                         KERN_ERR
3280                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3281                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3282                                 res = -EINVAL;
3283                                 goto dqbuf_unlock_and_return;
3284                         }
3285
3286                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3287                         if (file->f_flags & O_NONBLOCK &&
3288                             zr->v4l_buffers.buffer[num].state !=
3289                             BUZ_STATE_DONE) {
3290                                 res = -EAGAIN;
3291                                 goto dqbuf_unlock_and_return;
3292                         }
3293                         res = v4l_sync(file, num);
3294                         if (res)
3295                                 goto dqbuf_unlock_and_return;
3296                         else
3297                                 zr->v4l_sync_tail++;
3298                         res = zoran_v4l2_buffer_status(file, buf, num);
3299                         break;
3300
3301                 case ZORAN_MAP_MODE_JPG_REC:
3302                 case ZORAN_MAP_MODE_JPG_PLAY:
3303                 {
3304                         struct zoran_sync bs;
3305
3306                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3307                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3308                         else
3309                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3310
3311                         if (buf->type != buf_type) {
3312                                 dprintk(1,
3313                                         KERN_ERR
3314                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3315                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3316                                 res = -EINVAL;
3317                                 goto dqbuf_unlock_and_return;
3318                         }
3319
3320                         num =
3321                             zr->jpg_pend[zr->
3322                                          jpg_que_tail & BUZ_MASK_FRAME];
3323
3324                         if (file->f_flags & O_NONBLOCK &&
3325                             zr->jpg_buffers.buffer[num].state !=
3326                             BUZ_STATE_DONE) {
3327                                 res = -EAGAIN;
3328                                 goto dqbuf_unlock_and_return;
3329                         }
3330                         res = jpg_sync(file, &bs);
3331                         if (res)
3332                                 goto dqbuf_unlock_and_return;
3333                         res =
3334                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3335                         break;
3336                 }
3337
3338                 default:
3339                         dprintk(1,
3340                                 KERN_ERR
3341                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3342                                 ZR_DEVNAME(zr), buf->type);
3343                         res = -EINVAL;
3344                         goto dqbuf_unlock_and_return;
3345                 }
3346         dqbuf_unlock_and_return:
3347                 mutex_unlock(&zr->resource_lock);
3348
3349                 return res;
3350         }
3351                 break;
3352
3353         case VIDIOC_STREAMON:
3354         {
3355                 int res = 0;
3356
3357                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3358
3359                 mutex_lock(&zr->resource_lock);
3360
3361                 switch (fh->map_mode) {
3362                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3363                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3364                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3365                                 res = -EBUSY;
3366                                 goto strmon_unlock_and_return;
3367                         }
3368
3369                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3370                             ZORAN_LOCKED;
3371                         zr->v4l_settings = fh->v4l_settings;
3372
3373                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3374                         if (!zr->v4l_memgrab_active &&
3375                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3376                                 zr36057_set_memgrab(zr, 1);
3377                         }
3378                         break;
3379
3380                 case ZORAN_MAP_MODE_JPG_REC:
3381                 case ZORAN_MAP_MODE_JPG_PLAY:
3382                         /* what is the codec mode right now? */
3383                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3384                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3385                                 res = -EBUSY;
3386                                 goto strmon_unlock_and_return;
3387                         }
3388
3389                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3390                             ZORAN_LOCKED;
3391
3392                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3393                                 /* Start the jpeg codec when the first frame is queued  */
3394                                 jpeg_start(zr);
3395                         }
3396
3397                         break;
3398                 default:
3399                         dprintk(1,
3400                                 KERN_ERR
3401                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3402                                 ZR_DEVNAME(zr), fh->map_mode);
3403                         res = -EINVAL;
3404                         goto strmon_unlock_and_return;
3405                 }
3406         strmon_unlock_and_return:
3407                 mutex_unlock(&zr->resource_lock);
3408
3409                 return res;
3410         }
3411                 break;
3412
3413         case VIDIOC_STREAMOFF:
3414         {
3415                 int i, res = 0;
3416
3417                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3418
3419                 mutex_lock(&zr->resource_lock);
3420
3421                 switch (fh->map_mode) {
3422                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3423                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3424                             zr->v4l_buffers.active != ZORAN_FREE) {
3425                                 res = -EPERM;   /* stay off other's settings! */
3426                                 goto strmoff_unlock_and_return;
3427                         }
3428                         if (zr->v4l_buffers.active == ZORAN_FREE)
3429                                 goto strmoff_unlock_and_return;
3430
3431                         /* unload capture */
3432                         if (zr->v4l_memgrab_active) {
3433                                 unsigned long flags;
3434
3435                                 spin_lock_irqsave(&zr->spinlock, flags);
3436                                 zr36057_set_memgrab(zr, 0);
3437                                 spin_unlock_irqrestore(&zr->spinlock, flags);
3438                         }
3439
3440                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3441                                 zr->v4l_buffers.buffer[i].state =
3442                                     BUZ_STATE_USER;
3443                         fh->v4l_buffers = zr->v4l_buffers;
3444
3445                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3446                             ZORAN_FREE;
3447
3448                         zr->v4l_grab_seq = 0;
3449                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3450                         zr->v4l_sync_tail = 0;
3451
3452                         break;
3453
3454                 case ZORAN_MAP_MODE_JPG_REC:
3455                 case ZORAN_MAP_MODE_JPG_PLAY:
3456                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3457                             zr->jpg_buffers.active != ZORAN_FREE) {
3458                                 res = -EPERM;   /* stay off other's settings! */
3459                                 goto strmoff_unlock_and_return;
3460                         }
3461                         if (zr->jpg_buffers.active == ZORAN_FREE)
3462                                 goto strmoff_unlock_and_return;
3463
3464                         res =
3465                             jpg_qbuf(file, -1,
3466                                      (fh->map_mode ==
3467                                       ZORAN_MAP_MODE_JPG_REC) ?
3468                                      BUZ_MODE_MOTION_COMPRESS :
3469                                      BUZ_MODE_MOTION_DECOMPRESS);
3470                         if (res)
3471                                 goto strmoff_unlock_and_return;
3472                         break;
3473                 default:
3474                         dprintk(1,
3475                                 KERN_ERR
3476                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3477                                 ZR_DEVNAME(zr), fh->map_mode);
3478                         res = -EINVAL;
3479                         goto strmoff_unlock_and_return;
3480                 }
3481         strmoff_unlock_and_return:
3482                 mutex_unlock(&zr->resource_lock);
3483
3484                 return res;
3485         }
3486                 break;
3487
3488         case VIDIOC_QUERYCTRL:
3489         {
3490                 struct v4l2_queryctrl *ctrl = arg;
3491
3492                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3493                         ZR_DEVNAME(zr), ctrl->id);
3494
3495                 /* we only support hue/saturation/contrast/brightness */
3496                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3497                     ctrl->id > V4L2_CID_HUE)
3498                         return -EINVAL;
3499                 else {
3500                         int id = ctrl->id;
3501                         memset(ctrl, 0, sizeof(*ctrl));
3502                         ctrl->id = id;
3503                 }
3504
3505                 switch (ctrl->id) {
3506                 case V4L2_CID_BRIGHTNESS:
3507                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3508                         break;
3509                 case V4L2_CID_CONTRAST:
3510                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3511                         break;
3512                 case V4L2_CID_SATURATION:
3513                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3514                         break;
3515                 case V4L2_CID_HUE:
3516                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3517                         break;
3518                 }
3519
3520                 ctrl->minimum = 0;
3521                 ctrl->maximum = 65535;
3522                 ctrl->step = 1;
3523                 ctrl->default_value = 32768;
3524                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3525
3526                 return 0;
3527         }
3528                 break;
3529
3530         case VIDIOC_G_CTRL:
3531         {
3532                 struct v4l2_control *ctrl = arg;
3533
3534                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3535                         ZR_DEVNAME(zr), ctrl->id);
3536
3537                 /* we only support hue/saturation/contrast/brightness */
3538                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3539                     ctrl->id > V4L2_CID_HUE)
3540                         return -EINVAL;
3541
3542                 mutex_lock(&zr->resource_lock);
3543                 switch (ctrl->id) {
3544                 case V4L2_CID_BRIGHTNESS:
3545                         ctrl->value = zr->brightness;
3546                         break;
3547                 case V4L2_CID_CONTRAST:
3548                         ctrl->value = zr->contrast;
3549                         break;
3550                 case V4L2_CID_SATURATION:
3551                         ctrl->value = zr->saturation;
3552                         break;
3553                 case V4L2_CID_HUE:
3554                         ctrl->value = zr->hue;
3555                         break;
3556                 }
3557                 mutex_unlock(&zr->resource_lock);
3558
3559                 return 0;
3560         }
3561                 break;
3562
3563         case VIDIOC_S_CTRL:
3564         {
3565                 struct v4l2_control *ctrl = arg;
3566                 struct video_picture pict;
3567
3568                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3569                         ZR_DEVNAME(zr), ctrl->id);
3570
3571                 /* we only support hue/saturation/contrast/brightness */
3572                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3573                     ctrl->id > V4L2_CID_HUE)
3574                         return -EINVAL;
3575
3576                 if (ctrl->value < 0 || ctrl->value > 65535) {
3577                         dprintk(1,
3578                                 KERN_ERR
3579                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3580                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3581                         return -EINVAL;
3582                 }
3583
3584                 mutex_lock(&zr->resource_lock);
3585                 switch (ctrl->id) {
3586                 case V4L2_CID_BRIGHTNESS:
3587                         zr->brightness = ctrl->value;
3588                         break;
3589                 case V4L2_CID_CONTRAST:
3590                         zr->contrast = ctrl->value;
3591                         break;
3592                 case V4L2_CID_SATURATION:
3593                         zr->saturation = ctrl->value;
3594                         break;
3595                 case V4L2_CID_HUE:
3596                         zr->hue = ctrl->value;
3597                         break;
3598                 }
3599                 pict.brightness = zr->brightness;
3600                 pict.contrast = zr->contrast;
3601                 pict.colour = zr->saturation;
3602                 pict.hue = zr->hue;
3603
3604                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3605
3606                 mutex_unlock(&zr->resource_lock);
3607
3608                 return 0;
3609         }
3610                 break;
3611
3612         case VIDIOC_ENUMSTD:
3613         {
3614                 struct v4l2_standard *std = arg;
3615
3616                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3617                         ZR_DEVNAME(zr), std->index);
3618
3619                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3620                         return -EINVAL;
3621                 else {
3622                         int id = std->index;
3623                         memset(std, 0, sizeof(*std));
3624                         std->index = id;
3625                 }
3626
3627                 if (std->index == zr->card.norms) {
3628                         /* if we have autodetect, ... */
3629                         struct video_decoder_capability caps;
3630                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3631                                         &caps);
3632                         if (caps.flags & VIDEO_DECODER_AUTO) {
3633                                 std->id = V4L2_STD_ALL;
3634                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3635                                 return 0;
3636                         } else
3637                                 return -EINVAL;
3638                 }
3639                 switch (std->index) {
3640                 case 0:
3641                         std->id = V4L2_STD_PAL;
3642                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3643                         std->frameperiod.numerator = 1;
3644                         std->frameperiod.denominator = 25;
3645                         std->framelines = zr->card.tvn[0]->Ht;
3646                         break;
3647                 case 1:
3648                         std->id = V4L2_STD_NTSC;
3649                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3650                         std->frameperiod.numerator = 1001;
3651                         std->frameperiod.denominator = 30000;
3652                         std->framelines = zr->card.tvn[1]->Ht;
3653                         break;
3654                 case 2:
3655                         std->id = V4L2_STD_SECAM;
3656                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3657                         std->frameperiod.numerator = 1;
3658                         std->frameperiod.denominator = 25;
3659                         std->framelines = zr->card.tvn[2]->Ht;
3660                         break;
3661                 }
3662
3663                 return 0;
3664         }
3665                 break;
3666
3667         case VIDIOC_G_STD:
3668         {
3669                 v4l2_std_id *std = arg;
3670                 int norm;
3671
3672                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3673
3674                 mutex_lock(&zr->resource_lock);
3675                 norm = zr->norm;
3676                 mutex_unlock(&zr->resource_lock);
3677
3678                 switch (norm) {
3679                 case VIDEO_MODE_PAL:
3680                         *std = V4L2_STD_PAL;
3681                         break;
3682                 case VIDEO_MODE_NTSC:
3683                         *std = V4L2_STD_NTSC;
3684                         break;
3685                 case VIDEO_MODE_SECAM:
3686                         *std = V4L2_STD_SECAM;
3687                         break;
3688                 }
3689
3690                 return 0;
3691         }
3692                 break;
3693
3694         case VIDIOC_S_STD:
3695         {
3696                 int norm = -1, res = 0;
3697                 v4l2_std_id *std = arg;
3698
3699                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3700                         ZR_DEVNAME(zr), (unsigned long long)*std);
3701
3702                 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3703                         norm = VIDEO_MODE_PAL;
3704                 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3705                         norm = VIDEO_MODE_NTSC;
3706                 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3707                         norm = VIDEO_MODE_SECAM;
3708                 else if (*std == V4L2_STD_ALL)
3709                         norm = VIDEO_MODE_AUTO;
3710                 else {
3711                         dprintk(1,
3712                                 KERN_ERR
3713                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3714                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3715                         return -EINVAL;
3716                 }
3717
3718                 mutex_lock(&zr->resource_lock);
3719                 if ((res = zoran_set_norm(zr, norm)))
3720                         goto sstd_unlock_and_return;
3721
3722                 res = wait_grab_pending(zr);
3723         sstd_unlock_and_return:
3724                 mutex_unlock(&zr->resource_lock);
3725                 return res;
3726         }
3727                 break;
3728
3729         case VIDIOC_ENUMINPUT:
3730         {
3731                 struct v4l2_input *inp = arg;
3732                 int status;
3733
3734                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3735                         ZR_DEVNAME(zr), inp->index);
3736
3737                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3738                         return -EINVAL;
3739                 else {
3740                         int id = inp->index;
3741                         memset(inp, 0, sizeof(*inp));
3742                         inp->index = id;
3743                 }
3744
3745                 strncpy(inp->name, zr->card.input[inp->index].name,
3746                         sizeof(inp->name) - 1);
3747                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3748                 inp->std = V4L2_STD_ALL;
3749
3750                 /* Get status of video decoder */
3751                 mutex_lock(&zr->resource_lock);
3752                 decoder_command(zr, DECODER_GET_STATUS, &status);
3753                 mutex_unlock(&zr->resource_lock);
3754
3755                 if (!(status & DECODER_STATUS_GOOD)) {
3756                         inp->status |= V4L2_IN_ST_NO_POWER;
3757                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3758                 }
3759                 if (!(status & DECODER_STATUS_COLOR))
3760                         inp->status |= V4L2_IN_ST_NO_COLOR;
3761
3762                 return 0;
3763         }
3764                 break;
3765
3766         case VIDIOC_G_INPUT:
3767         {
3768                 int *input = arg;
3769
3770                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3771
3772                 mutex_lock(&zr->resource_lock);
3773                 *input = zr->input;
3774                 mutex_unlock(&zr->resource_lock);
3775
3776                 return 0;
3777         }
3778                 break;
3779
3780         case VIDIOC_S_INPUT:
3781         {
3782                 int *input = arg, res = 0;
3783
3784                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3785                         ZR_DEVNAME(zr), *input);
3786
3787                 mutex_lock(&zr->resource_lock);
3788                 if ((res = zoran_set_input(zr, *input)))
3789                         goto sinput_unlock_and_return;
3790
3791                 /* Make sure the changes come into effect */
3792                 res = wait_grab_pending(zr);
3793         sinput_unlock_and_return:
3794                 mutex_unlock(&zr->resource_lock);
3795                 return res;
3796         }
3797                 break;
3798
3799         case VIDIOC_ENUMOUTPUT:
3800         {
3801                 struct v4l2_output *outp = arg;
3802
3803                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3804                         ZR_DEVNAME(zr), outp->index);
3805
3806                 if (outp->index != 0)
3807                         return -EINVAL;
3808
3809                 memset(outp, 0, sizeof(*outp));
3810                 outp->index = 0;
3811                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3812                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3813
3814                 return 0;
3815         }
3816                 break;
3817
3818         case VIDIOC_G_OUTPUT:
3819         {
3820                 int *output = arg;
3821
3822                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3823
3824                 *output = 0;
3825
3826                 return 0;
3827         }
3828                 break;
3829
3830         case VIDIOC_S_OUTPUT:
3831         {
3832                 int *output = arg;
3833
3834                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3835                         ZR_DEVNAME(zr), *output);
3836
3837                 if (*output != 0)
3838                         return -EINVAL;
3839
3840                 return 0;
3841         }
3842                 break;
3843
3844                 /* cropping (sub-frame capture) */
3845         case VIDIOC_CROPCAP:
3846         {
3847                 struct v4l2_cropcap *cropcap = arg;
3848                 int type = cropcap->type, res = 0;
3849
3850                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3851                         ZR_DEVNAME(zr), cropcap->type);
3852
3853                 memset(cropcap, 0, sizeof(*cropcap));
3854                 cropcap->type = type;
3855
3856                 mutex_lock(&zr->resource_lock);
3857
3858                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3859                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3860                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3861                         dprintk(1,
3862                                 KERN_ERR
3863                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3864                                 ZR_DEVNAME(zr));
3865                         res = -EINVAL;
3866                         goto cropcap_unlock_and_return;
3867                 }
3868
3869                 cropcap->bounds.top = cropcap->bounds.left = 0;
3870                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3871                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3872                 cropcap->defrect.top = cropcap->defrect.left = 0;
3873                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3874                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3875         cropcap_unlock_and_return:
3876                 mutex_unlock(&zr->resource_lock);
3877                 return res;
3878         }
3879                 break;
3880
3881         case VIDIOC_G_CROP:
3882         {
3883                 struct v4l2_crop *crop = arg;
3884                 int type = crop->type, res = 0;
3885
3886                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3887                         ZR_DEVNAME(zr), crop->type);
3888
3889                 memset(crop, 0, sizeof(*crop));
3890                 crop->type = type;
3891
3892                 mutex_lock(&zr->resource_lock);
3893
3894                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3895                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3896                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3897                         dprintk(1,
3898                                 KERN_ERR
3899                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3900                                 ZR_DEVNAME(zr));
3901                         res = -EINVAL;
3902                         goto gcrop_unlock_and_return;
3903                 }
3904
3905                 crop->c.top = fh->jpg_settings.img_y;
3906                 crop->c.left = fh->jpg_settings.img_x;
3907                 crop->c.width = fh->jpg_settings.img_width;
3908                 crop->c.height = fh->jpg_settings.img_height;
3909
3910         gcrop_unlock_and_return:
3911                 mutex_unlock(&zr->resource_lock);
3912
3913                 return res;
3914         }
3915                 break;
3916
3917         case VIDIOC_S_CROP:
3918         {
3919                 struct v4l2_crop *crop = arg;
3920                 int res = 0;
3921
3922                 settings = fh->jpg_settings;
3923
3924                 dprintk(3,
3925                         KERN_ERR
3926                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3927                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3928                         crop->c.width, crop->c.height);
3929
3930                 mutex_lock(&zr->resource_lock);
3931
3932                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3933                         dprintk(1,
3934                                 KERN_ERR
3935                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3936                                 ZR_DEVNAME(zr));
3937                         res = -EBUSY;
3938                         goto scrop_unlock_and_return;
3939                 }
3940
3941                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3942                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3943                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3944                         dprintk(1,
3945                                 KERN_ERR
3946                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3947                                 ZR_DEVNAME(zr));
3948                         res = -EINVAL;
3949                         goto scrop_unlock_and_return;
3950                 }
3951
3952                 /* move into a form that we understand */
3953                 settings.img_x = crop->c.left;
3954                 settings.img_y = crop->c.top;
3955                 settings.img_width = crop->c.width;
3956                 settings.img_height = crop->c.height;
3957
3958                 /* check validity */
3959                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3960                         goto scrop_unlock_and_return;
3961
3962                 /* accept */
3963                 fh->jpg_settings = settings;
3964
3965         scrop_unlock_and_return:
3966                 mutex_unlock(&zr->resource_lock);
3967                 return res;
3968         }
3969                 break;
3970
3971         case VIDIOC_G_JPEGCOMP:
3972         {
3973                 struct v4l2_jpegcompression *params = arg;
3974
3975                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3976                         ZR_DEVNAME(zr));
3977
3978                 memset(params, 0, sizeof(*params));
3979
3980                 mutex_lock(&zr->resource_lock);
3981
3982                 params->quality = fh->jpg_settings.jpg_comp.quality;
3983                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3984                 memcpy(params->APP_data,
3985                        fh->jpg_settings.jpg_comp.APP_data,
3986                        fh->jpg_settings.jpg_comp.APP_len);
3987                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3988                 memcpy(params->COM_data,
3989                        fh->jpg_settings.jpg_comp.COM_data,
3990                        fh->jpg_settings.jpg_comp.COM_len);
3991                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3992                 params->jpeg_markers =
3993                     fh->jpg_settings.jpg_comp.jpeg_markers;
3994
3995                 mutex_unlock(&zr->resource_lock);
3996
3997                 return 0;
3998         }
3999                 break;
4000
4001         case VIDIOC_S_JPEGCOMP:
4002         {
4003                 struct v4l2_jpegcompression *params = arg;
4004                 int res = 0;
4005
4006                 settings = fh->jpg_settings;
4007
4008                 dprintk(3,
4009                         KERN_DEBUG
4010                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4011                         ZR_DEVNAME(zr), params->quality, params->APPn,
4012                         params->APP_len, params->COM_len);
4013
4014                 settings.jpg_comp = *params;
4015
4016                 mutex_lock(&zr->resource_lock);
4017
4018                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4019                     fh->jpg_buffers.active != ZORAN_FREE) {
4020                         dprintk(1,
4021                                 KERN_WARNING
4022                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4023                                 ZR_DEVNAME(zr));
4024                         res = -EBUSY;
4025                         goto sjpegc_unlock_and_return;
4026                 }
4027
4028                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4029                         goto sjpegc_unlock_and_return;
4030                 if (!fh->jpg_buffers.allocated)
4031                         fh->jpg_buffers.buffer_size =
4032                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4033                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4034         sjpegc_unlock_and_return:
4035                 mutex_unlock(&zr->resource_lock);
4036
4037                 return 0;
4038         }
4039                 break;
4040
4041         case VIDIOC_QUERYSTD:   /* why is this useful? */
4042         {
4043                 v4l2_std_id *std = arg;
4044
4045                 dprintk(3,
4046                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4047                         ZR_DEVNAME(zr), (unsigned long long)*std);
4048
4049                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4050                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4051                                              zr->card.norms == 3)) {
4052                         return 0;
4053                 }
4054
4055                 return -EINVAL;
4056         }
4057                 break;
4058
4059         case VIDIOC_TRY_FMT:
4060         {
4061                 struct v4l2_format *fmt = arg;
4062                 int res = 0;
4063
4064                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4065                         ZR_DEVNAME(zr), fmt->type);
4066
4067                 switch (fmt->type) {
4068                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4069                         mutex_lock(&zr->resource_lock);
4070
4071                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4072                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4073                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4074                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4075                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4076                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4077                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4078                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4079
4080                         mutex_unlock(&zr->resource_lock);
4081                         break;
4082
4083                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4084                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4085                         if (fmt->fmt.pix.bytesperline > 0)
4086                                 return -EINVAL;
4087
4088                         mutex_lock(&zr->resource_lock);
4089
4090                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4091                                 settings = fh->jpg_settings;
4092
4093                                 /* we actually need to set 'real' parameters now */
4094                                 if ((fmt->fmt.pix.height * 2) >
4095                                     BUZ_MAX_HEIGHT)
4096                                         settings.TmpDcm = 1;
4097                                 else
4098                                         settings.TmpDcm = 2;
4099                                 settings.decimation = 0;
4100                                 if (fmt->fmt.pix.height <=
4101                                     fh->jpg_settings.img_height / 2)
4102                                         settings.VerDcm = 2;
4103                                 else
4104                                         settings.VerDcm = 1;
4105                                 if (fmt->fmt.pix.width <=
4106                                     fh->jpg_settings.img_width / 4)
4107                                         settings.HorDcm = 4;
4108                                 else if (fmt->fmt.pix.width <=
4109                                          fh->jpg_settings.img_width / 2)
4110                                         settings.HorDcm = 2;
4111                                 else
4112                                         settings.HorDcm = 1;
4113                                 if (settings.TmpDcm == 1)
4114                                         settings.field_per_buff = 2;
4115                                 else
4116                                         settings.field_per_buff = 1;
4117
4118                                 /* check */
4119                                 if ((res =
4120                                      zoran_check_jpg_settings(zr,
4121                                                               &settings)))
4122                                         goto tryfmt_unlock_and_return;
4123
4124                                 /* tell the user what we actually did */
4125                                 fmt->fmt.pix.width =
4126                                     settings.img_width / settings.HorDcm;
4127                                 fmt->fmt.pix.height =
4128                                     settings.img_height * 2 /
4129                                     (settings.TmpDcm * settings.VerDcm);
4130                                 if (settings.TmpDcm == 1)
4131                                         fmt->fmt.pix.field =
4132                                             (fh->jpg_settings.
4133                                              odd_even ? V4L2_FIELD_SEQ_TB :
4134                                              V4L2_FIELD_SEQ_BT);
4135                                 else
4136                                         fmt->fmt.pix.field =
4137                                             (fh->jpg_settings.
4138                                              odd_even ? V4L2_FIELD_TOP :
4139                                              V4L2_FIELD_BOTTOM);
4140
4141                                 fmt->fmt.pix.sizeimage =
4142                                     zoran_v4l2_calc_bufsize(&settings);
4143                         } else if (fmt->type ==
4144                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4145                                 int i;
4146
4147                                 for (i = 0; i < NUM_FORMATS; i++)
4148                                         if (zoran_formats[i].fourcc ==
4149                                             fmt->fmt.pix.pixelformat)
4150                                                 break;
4151                                 if (i == NUM_FORMATS) {
4152                                         res = -EINVAL;
4153                                         goto tryfmt_unlock_and_return;
4154                                 }
4155
4156                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4157                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4158                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4159                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4160                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4161                                         fmt->fmt.pix.height =
4162                                             BUZ_MAX_HEIGHT;
4163                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4164                                         fmt->fmt.pix.height =
4165                                             BUZ_MIN_HEIGHT;
4166                         } else {
4167                                 res = -EINVAL;
4168                                 goto tryfmt_unlock_and_return;
4169                         }
4170                 tryfmt_unlock_and_return:
4171                         mutex_unlock(&zr->resource_lock);
4172
4173                         return res;
4174                         break;
4175
4176                 default:
4177                         return -EINVAL;
4178                 }
4179
4180                 return 0;
4181         }
4182                 break;
4183
4184         default:
4185                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4186                         ZR_DEVNAME(zr), cmd);
4187                 return -ENOIOCTLCMD;
4188                 break;
4189
4190         }
4191         return 0;
4192 }
4193
4194
4195 static int
4196 zoran_ioctl (struct inode *inode,
4197              struct file  *file,
4198              unsigned int  cmd,
4199              unsigned long arg)
4200 {
4201         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4202 }
4203
4204 static unsigned int
4205 zoran_poll (struct file *file,
4206             poll_table  *wait)
4207 {
4208         struct zoran_fh *fh = file->private_data;
4209         struct zoran *zr = fh->zr;
4210         int res = 0, frame;
4211         unsigned long flags;
4212
4213         /* we should check whether buffers are ready to be synced on
4214          * (w/o waits - O_NONBLOCK) here
4215          * if ready for read (sync), return POLLIN|POLLRDNORM,
4216          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4217          * if error, return POLLERR,
4218          * if no buffers queued or so, return POLLNVAL
4219          */
4220
4221         mutex_lock(&zr->resource_lock);
4222
4223         switch (fh->map_mode) {
4224         case ZORAN_MAP_MODE_RAW:
4225                 poll_wait(file, &zr->v4l_capq, wait);
4226                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4227
4228                 spin_lock_irqsave(&zr->spinlock, flags);
4229                 dprintk(3,
4230                         KERN_DEBUG
4231                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4232                         ZR_DEVNAME(zr), __func__,
4233                         "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4234                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
4235                         zr->v4l_pend_tail, zr->v4l_pend_head);
4236                 /* Process is the one capturing? */
4237                 if (fh->v4l_buffers.active != ZORAN_FREE &&
4238                     /* Buffer ready to DQBUF? */
4239                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4240                         res = POLLIN | POLLRDNORM;
4241                 spin_unlock_irqrestore(&zr->spinlock, flags);
4242
4243                 break;
4244
4245         case ZORAN_MAP_MODE_JPG_REC:
4246         case ZORAN_MAP_MODE_JPG_PLAY:
4247                 poll_wait(file, &zr->jpg_capq, wait);
4248                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4249
4250                 spin_lock_irqsave(&zr->spinlock, flags);
4251                 dprintk(3,
4252                         KERN_DEBUG
4253                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4254                         ZR_DEVNAME(zr), __func__,
4255                         "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4256                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
4257                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4258                 if (fh->jpg_buffers.active != ZORAN_FREE &&
4259                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4260                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4261                                 res = POLLIN | POLLRDNORM;
4262                         else
4263                                 res = POLLOUT | POLLWRNORM;
4264                 }
4265                 spin_unlock_irqrestore(&zr->spinlock, flags);
4266
4267                 break;
4268
4269         default:
4270                 dprintk(1,
4271                         KERN_ERR
4272                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4273                         ZR_DEVNAME(zr), fh->map_mode);
4274                 res = POLLNVAL;
4275         }
4276
4277         mutex_unlock(&zr->resource_lock);
4278
4279         return res;
4280 }
4281
4282
4283 /*
4284  * This maps the buffers to user space.
4285  *
4286  * Depending on the state of fh->map_mode
4287  * the V4L or the MJPEG buffers are mapped
4288  * per buffer or all together
4289  *
4290  * Note that we need to connect to some
4291  * unmap signal event to unmap the de-allocate
4292  * the buffer accordingly (zoran_vm_close())
4293  */
4294
4295 static void
4296 zoran_vm_open (struct vm_area_struct *vma)
4297 {
4298         struct zoran_mapping *map = vma->vm_private_data;
4299
4300         map->count++;
4301 }
4302
4303 static void
4304 zoran_vm_close (struct vm_area_struct *vma)
4305 {
4306         struct zoran_mapping *map = vma->vm_private_data;
4307         struct file *file = map->file;
4308         struct zoran_fh *fh = file->private_data;
4309         struct zoran *zr = fh->zr;
4310         int i;
4311
4312         map->count--;
4313         if (map->count == 0) {
4314                 switch (fh->map_mode) {
4315                 case ZORAN_MAP_MODE_JPG_REC:
4316                 case ZORAN_MAP_MODE_JPG_PLAY:
4317
4318                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4319                                 ZR_DEVNAME(zr));
4320
4321                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4322                                 if (fh->jpg_buffers.buffer[i].map == map) {
4323                                         fh->jpg_buffers.buffer[i].map =
4324                                             NULL;
4325                                 }
4326                         }
4327                         kfree(map);
4328
4329                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4330                                 if (fh->jpg_buffers.buffer[i].map)
4331                                         break;
4332                         if (i == fh->jpg_buffers.num_buffers) {
4333                                 mutex_lock(&zr->resource_lock);
4334
4335                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4336                                         jpg_qbuf(file, -1, zr->codec_mode);
4337                                         zr->jpg_buffers.allocated = 0;
4338                                         zr->jpg_buffers.active =
4339                                             fh->jpg_buffers.active =
4340                                             ZORAN_FREE;
4341                                 }
4342                                 //jpg_fbuffer_free(file);
4343                                 fh->jpg_buffers.allocated = 0;
4344                                 fh->jpg_buffers.ready_to_be_freed = 1;
4345
4346                                 mutex_unlock(&zr->resource_lock);
4347                         }
4348
4349                         break;
4350
4351                 case ZORAN_MAP_MODE_RAW:
4352
4353                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4354                                 ZR_DEVNAME(zr));
4355
4356                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4357                                 if (fh->v4l_buffers.buffer[i].map == map) {
4358                                         /* unqueue/unmap */
4359                                         fh->v4l_buffers.buffer[i].map =
4360                                             NULL;
4361                                 }
4362                         }
4363                         kfree(map);
4364
4365                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4366                                 if (fh->v4l_buffers.buffer[i].map)
4367                                         break;
4368                         if (i == fh->v4l_buffers.num_buffers) {
4369                                 mutex_lock(&zr->resource_lock);
4370
4371                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4372                                         unsigned long flags;
4373
4374                                         spin_lock_irqsave(&zr->spinlock, flags);
4375                                         zr36057_set_memgrab(zr, 0);
4376                                         zr->v4l_buffers.allocated = 0;
4377                                         zr->v4l_buffers.active =
4378                                             fh->v4l_buffers.active =
4379                                             ZORAN_FREE;
4380                                         spin_unlock_irqrestore(&zr->spinlock, flags);
4381                                 }
4382                                 //v4l_fbuffer_free(file);
4383                                 fh->v4l_buffers.allocated = 0;
4384                                 fh->v4l_buffers.ready_to_be_freed = 1;
4385
4386                                 mutex_unlock(&zr->resource_lock);
4387                         }
4388
4389                         break;
4390
4391                 default:
4392                         printk(KERN_ERR
4393                                "%s: munmap() - internal error - unknown map mode %d\n",
4394                                ZR_DEVNAME(zr), fh->map_mode);
4395                         break;
4396
4397                 }
4398         }
4399 }
4400
4401 static struct vm_operations_struct zoran_vm_ops = {
4402         .open = zoran_vm_open,
4403         .close = zoran_vm_close,
4404 };
4405
4406 static int
4407 zoran_mmap (struct file           *file,
4408             struct vm_area_struct *vma)
4409 {
4410         struct zoran_fh *fh = file->private_data;
4411         struct zoran *zr = fh->zr;
4412         unsigned long size = (vma->vm_end - vma->vm_start);
4413         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4414         int i, j;
4415         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4416         int first, last;
4417         struct zoran_mapping *map;
4418         int res = 0;
4419
4420         dprintk(3,
4421                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4422                 ZR_DEVNAME(zr),
4423                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4424                 vma->vm_start, vma->vm_end, size);
4425
4426         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4427             !(vma->vm_flags & VM_WRITE)) {
4428                 dprintk(1,
4429                         KERN_ERR
4430                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4431                         ZR_DEVNAME(zr));
4432                 return -EINVAL;
4433         }
4434
4435         switch (fh->map_mode) {
4436
4437         case ZORAN_MAP_MODE_JPG_REC:
4438         case ZORAN_MAP_MODE_JPG_PLAY:
4439
4440                 /* lock */
4441                 mutex_lock(&zr->resource_lock);
4442
4443                 /* Map the MJPEG buffers */
4444                 if (!fh->jpg_buffers.allocated) {
4445                         dprintk(1,
4446                                 KERN_ERR
4447                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4448                                 ZR_DEVNAME(zr));
4449                         res = -ENOMEM;
4450                         goto jpg_mmap_unlock_and_return;
4451                 }
4452
4453                 first = offset / fh->jpg_buffers.buffer_size;
4454                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4455                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4456                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4457                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4458                     last >= fh->jpg_buffers.num_buffers) {
4459                         dprintk(1,
4460                                 KERN_ERR
4461                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4462                                 ZR_DEVNAME(zr), offset, size,
4463                                 fh->jpg_buffers.buffer_size,
4464                                 fh->jpg_buffers.num_buffers);
4465                         res = -EINVAL;
4466                         goto jpg_mmap_unlock_and_return;
4467                 }
4468                 for (i = first; i <= last; i++) {
4469                         if (fh->jpg_buffers.buffer[i].map) {
4470                                 dprintk(1,
4471                                         KERN_ERR
4472                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4473                                         ZR_DEVNAME(zr), i);
4474                                 res = -EBUSY;
4475                                 goto jpg_mmap_unlock_and_return;
4476                         }
4477                 }
4478
4479                 /* map these buffers (v4l_buffers[i]) */
4480                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4481                 if (!map) {
4482                         res = -ENOMEM;
4483                         goto jpg_mmap_unlock_and_return;
4484                 }
4485                 map->file = file;
4486                 map->count = 1;
4487
4488                 vma->vm_ops = &zoran_vm_ops;
4489                 vma->vm_flags |= VM_DONTEXPAND;
4490                 vma->vm_private_data = map;
4491
4492                 for (i = first; i <= last; i++) {
4493                         for (j = 0;
4494                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4495                              j++) {
4496                                 fraglen =
4497                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4498                                      frag_tab[2 * j + 1]) & ~1) << 1;
4499                                 todo = size;
4500                                 if (todo > fraglen)
4501                                         todo = fraglen;
4502                                 pos =
4503                                     le32_to_cpu(fh->jpg_buffers.
4504                                     buffer[i].frag_tab[2 * j]);
4505                                 /* should just be pos on i386 */
4506                                 page = virt_to_phys(bus_to_virt(pos))
4507                                                                 >> PAGE_SHIFT;
4508                                 if (remap_pfn_range(vma, start, page,
4509                                                         todo, PAGE_SHARED)) {
4510                                         dprintk(1,
4511                                                 KERN_ERR
4512                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4513                                                 ZR_DEVNAME(zr));
4514                                         res = -EAGAIN;
4515                                         goto jpg_mmap_unlock_and_return;
4516                                 }
4517                                 size -= todo;
4518                                 start += todo;
4519                                 if (size == 0)
4520                                         break;
4521                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4522                                     frag_tab[2 * j + 1]) & 1)
4523                                         break;  /* was last fragment */
4524                         }
4525                         fh->jpg_buffers.buffer[i].map = map;
4526                         if (size == 0)
4527                                 break;
4528
4529                 }
4530         jpg_mmap_unlock_and_return:
4531                 mutex_unlock(&zr->resource_lock);
4532
4533                 break;
4534
4535         case ZORAN_MAP_MODE_RAW:
4536
4537                 mutex_lock(&zr->resource_lock);
4538
4539                 /* Map the V4L buffers */
4540                 if (!fh->v4l_buffers.allocated) {
4541                         dprintk(1,
4542                                 KERN_ERR
4543                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4544                                 ZR_DEVNAME(zr));
4545                         res = -ENOMEM;
4546                         goto v4l_mmap_unlock_and_return;
4547                 }
4548
4549                 first = offset / fh->v4l_buffers.buffer_size;
4550                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4551                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4552                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4553                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4554                     last >= fh->v4l_buffers.buffer_size) {
4555                         dprintk(1,
4556                                 KERN_ERR
4557                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4558                                 ZR_DEVNAME(zr), offset, size,
4559                                 fh->v4l_buffers.buffer_size,
4560                                 fh->v4l_buffers.num_buffers);
4561                         res = -EINVAL;
4562                         goto v4l_mmap_unlock_and_return;
4563                 }
4564                 for (i = first; i <= last; i++) {
4565                         if (fh->v4l_buffers.buffer[i].map) {
4566                                 dprintk(1,
4567                                         KERN_ERR
4568                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4569                                         ZR_DEVNAME(zr), i);
4570                                 res = -EBUSY;
4571                                 goto v4l_mmap_unlock_and_return;
4572                         }
4573                 }
4574
4575                 /* map these buffers (v4l_buffers[i]) */
4576                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4577                 if (!map) {
4578                         res = -ENOMEM;
4579                         goto v4l_mmap_unlock_and_return;
4580                 }
4581                 map->file = file;
4582                 map->count = 1;
4583
4584                 vma->vm_ops = &zoran_vm_ops;
4585                 vma->vm_flags |= VM_DONTEXPAND;
4586                 vma->vm_private_data = map;
4587
4588                 for (i = first; i <= last; i++) {
4589                         todo = size;
4590                         if (todo > fh->v4l_buffers.buffer_size)
4591                                 todo = fh->v4l_buffers.buffer_size;
4592                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4593                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4594                                                         todo, PAGE_SHARED)) {
4595                                 dprintk(1,
4596                                         KERN_ERR
4597                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4598                                         ZR_DEVNAME(zr));
4599                                 res = -EAGAIN;
4600                                 goto v4l_mmap_unlock_and_return;
4601                         }
4602                         size -= todo;
4603                         start += todo;
4604                         fh->v4l_buffers.buffer[i].map = map;
4605                         if (size == 0)
4606                                 break;
4607                 }
4608         v4l_mmap_unlock_and_return:
4609                 mutex_unlock(&zr->resource_lock);
4610
4611                 break;
4612
4613         default:
4614                 dprintk(1,
4615                         KERN_ERR
4616                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4617                         ZR_DEVNAME(zr), fh->map_mode);
4618                 break;
4619         }
4620
4621         return 0;
4622 }
4623
4624 static const struct file_operations zoran_fops = {
4625         .owner = THIS_MODULE,
4626         .open = zoran_open,
4627         .release = zoran_close,
4628         .ioctl = zoran_ioctl,
4629 #ifdef CONFIG_COMPAT
4630         .compat_ioctl   = v4l_compat_ioctl32,
4631 #endif
4632         .llseek = no_llseek,
4633         .read = zoran_read,
4634         .write = zoran_write,
4635         .mmap = zoran_mmap,
4636         .poll = zoran_poll,
4637 };
4638
4639 struct video_device zoran_template __devinitdata = {
4640         .name = ZORAN_NAME,
4641         .fops = &zoran_fops,
4642         .release = &zoran_vdev_release,
4643         .minor = -1
4644 };
4645